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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/x86/crypto | |
parent | Initial commit. (diff) | |
download | linux-upstream/4.19.249.tar.xz linux-upstream/4.19.249.zip |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/crypto')
108 files changed, 50671 insertions, 0 deletions
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile new file mode 100644 index 000000000..a450ad573 --- /dev/null +++ b/arch/x86/crypto/Makefile @@ -0,0 +1,129 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Arch-specific CryptoAPI modules. +# + +OBJECT_FILES_NON_STANDARD := y + +avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no) +avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ + $(comma)4)$(comma)%ymm2,yes,no) +sha1_ni_supported :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,yes,no) +sha256_ni_supported :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,yes,no) + +obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o + +obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o +obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o +obj-$(CONFIG_CRYPTO_SERPENT_SSE2_586) += serpent-sse2-i586.o + +obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o +obj-$(CONFIG_CRYPTO_DES3_EDE_X86_64) += des3_ede-x86_64.o +obj-$(CONFIG_CRYPTO_CAMELLIA_X86_64) += camellia-x86_64.o +obj-$(CONFIG_CRYPTO_BLOWFISH_X86_64) += blowfish-x86_64.o +obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o +obj-$(CONFIG_CRYPTO_TWOFISH_X86_64_3WAY) += twofish-x86_64-3way.o +obj-$(CONFIG_CRYPTO_CHACHA20_X86_64) += chacha20-x86_64.o +obj-$(CONFIG_CRYPTO_SERPENT_SSE2_X86_64) += serpent-sse2-x86_64.o +obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o +obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o + +obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o +obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o +obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o +obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o +obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o +obj-$(CONFIG_CRYPTO_CRCT10DIF_PCLMUL) += crct10dif-pclmul.o +obj-$(CONFIG_CRYPTO_POLY1305_X86_64) += poly1305-x86_64.o + +obj-$(CONFIG_CRYPTO_AEGIS128_AESNI_SSE2) += aegis128-aesni.o +obj-$(CONFIG_CRYPTO_AEGIS128L_AESNI_SSE2) += aegis128l-aesni.o +obj-$(CONFIG_CRYPTO_AEGIS256_AESNI_SSE2) += aegis256-aesni.o + +obj-$(CONFIG_CRYPTO_MORUS640_GLUE) += morus640_glue.o +obj-$(CONFIG_CRYPTO_MORUS1280_GLUE) += morus1280_glue.o + +obj-$(CONFIG_CRYPTO_MORUS640_SSE2) += morus640-sse2.o +obj-$(CONFIG_CRYPTO_MORUS1280_SSE2) += morus1280-sse2.o + +# These modules require assembler to support AVX. +ifeq ($(avx_supported),yes) + obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64) += \ + camellia-aesni-avx-x86_64.o + obj-$(CONFIG_CRYPTO_CAST5_AVX_X86_64) += cast5-avx-x86_64.o + obj-$(CONFIG_CRYPTO_CAST6_AVX_X86_64) += cast6-avx-x86_64.o + obj-$(CONFIG_CRYPTO_TWOFISH_AVX_X86_64) += twofish-avx-x86_64.o + obj-$(CONFIG_CRYPTO_SERPENT_AVX_X86_64) += serpent-avx-x86_64.o +endif + +# These modules require assembler to support AVX2. +ifeq ($(avx2_supported),yes) + obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o + obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o + obj-$(CONFIG_CRYPTO_SHA1_MB) += sha1-mb/ + obj-$(CONFIG_CRYPTO_SHA256_MB) += sha256-mb/ + obj-$(CONFIG_CRYPTO_SHA512_MB) += sha512-mb/ + + obj-$(CONFIG_CRYPTO_MORUS1280_AVX2) += morus1280-avx2.o +endif + +aes-i586-y := aes-i586-asm_32.o aes_glue.o +twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o +serpent-sse2-i586-y := serpent-sse2-i586-asm_32.o serpent_sse2_glue.o + +aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o +des3_ede-x86_64-y := des3_ede-asm_64.o des3_ede_glue.o +camellia-x86_64-y := camellia-x86_64-asm_64.o camellia_glue.o +blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o +twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o +twofish-x86_64-3way-y := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o +chacha20-x86_64-y := chacha20-ssse3-x86_64.o chacha20_glue.o +serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o + +aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o +aegis128l-aesni-y := aegis128l-aesni-asm.o aegis128l-aesni-glue.o +aegis256-aesni-y := aegis256-aesni-asm.o aegis256-aesni-glue.o + +morus640-sse2-y := morus640-sse2-asm.o morus640-sse2-glue.o +morus1280-sse2-y := morus1280-sse2-asm.o morus1280-sse2-glue.o + +ifeq ($(avx_supported),yes) + camellia-aesni-avx-x86_64-y := camellia-aesni-avx-asm_64.o \ + camellia_aesni_avx_glue.o + cast5-avx-x86_64-y := cast5-avx-x86_64-asm_64.o cast5_avx_glue.o + cast6-avx-x86_64-y := cast6-avx-x86_64-asm_64.o cast6_avx_glue.o + twofish-avx-x86_64-y := twofish-avx-x86_64-asm_64.o \ + twofish_avx_glue.o + serpent-avx-x86_64-y := serpent-avx-x86_64-asm_64.o \ + serpent_avx_glue.o +endif + +ifeq ($(avx2_supported),yes) + camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o + chacha20-x86_64-y += chacha20-avx2-x86_64.o + serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o + + morus1280-avx2-y := morus1280-avx2-asm.o morus1280-avx2-glue.o +endif + +aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o fpu.o +aesni-intel-$(CONFIG_64BIT) += aesni-intel_avx-x86_64.o aes_ctrby8_avx-x86_64.o +ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o +sha1-ssse3-y := sha1_ssse3_asm.o sha1_ssse3_glue.o +poly1305-x86_64-y := poly1305-sse2-x86_64.o poly1305_glue.o +ifeq ($(avx2_supported),yes) +sha1-ssse3-y += sha1_avx2_x86_64_asm.o +poly1305-x86_64-y += poly1305-avx2-x86_64.o +endif +ifeq ($(sha1_ni_supported),yes) +sha1-ssse3-y += sha1_ni_asm.o +endif +crc32c-intel-y := crc32c-intel_glue.o +crc32c-intel-$(CONFIG_64BIT) += crc32c-pcl-intel-asm_64.o +crc32-pclmul-y := crc32-pclmul_asm.o crc32-pclmul_glue.o +sha256-ssse3-y := sha256-ssse3-asm.o sha256-avx-asm.o sha256-avx2-asm.o sha256_ssse3_glue.o +ifeq ($(sha256_ni_supported),yes) +sha256-ssse3-y += sha256_ni_asm.o +endif +sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o +crct10dif-pclmul-y := crct10dif-pcl-asm_64.o crct10dif-pclmul_glue.o diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S new file mode 100644 index 000000000..5f7e43d4f --- /dev/null +++ b/arch/x86/crypto/aegis128-aesni-asm.S @@ -0,0 +1,750 @@ +/* + * AES-NI + SSE2 implementation of AEGIS-128 + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> + +#define STATE0 %xmm0 +#define STATE1 %xmm1 +#define STATE2 %xmm2 +#define STATE3 %xmm3 +#define STATE4 %xmm4 +#define KEY %xmm5 +#define MSG %xmm5 +#define T0 %xmm6 +#define T1 %xmm7 + +#define STATEP %rdi +#define LEN %rsi +#define SRC %rdx +#define DST %rcx + +.section .rodata.cst16.aegis128_const, "aM", @progbits, 32 +.align 16 +.Laegis128_const_0: + .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d + .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 +.Laegis128_const_1: + .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 + .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd + +.section .rodata.cst16.aegis128_counter, "aM", @progbits, 16 +.align 16 +.Laegis128_counter: + .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 + .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f + +.text + +/* + * aegis128_update + * input: + * STATE[0-4] - input state + * output: + * STATE[0-4] - output state (shifted positions) + * changed: + * T0 + */ +.macro aegis128_update + movdqa STATE4, T0 + aesenc STATE0, STATE4 + aesenc STATE1, STATE0 + aesenc STATE2, STATE1 + aesenc STATE3, STATE2 + aesenc T0, STATE3 +.endm + +/* + * __load_partial: internal ABI + * input: + * LEN - bytes + * SRC - src + * output: + * MSG - message block + * changed: + * T0 + * %r8 + * %r9 + */ +__load_partial: + xor %r9d, %r9d + pxor MSG, MSG + + mov LEN, %r8 + and $0x1, %r8 + jz .Lld_partial_1 + + mov LEN, %r8 + and $0x1E, %r8 + add SRC, %r8 + mov (%r8), %r9b + +.Lld_partial_1: + mov LEN, %r8 + and $0x2, %r8 + jz .Lld_partial_2 + + mov LEN, %r8 + and $0x1C, %r8 + add SRC, %r8 + shl $0x10, %r9 + mov (%r8), %r9w + +.Lld_partial_2: + mov LEN, %r8 + and $0x4, %r8 + jz .Lld_partial_4 + + mov LEN, %r8 + and $0x18, %r8 + add SRC, %r8 + shl $32, %r9 + mov (%r8), %r8d + xor %r8, %r9 + +.Lld_partial_4: + movq %r9, MSG + + mov LEN, %r8 + and $0x8, %r8 + jz .Lld_partial_8 + + mov LEN, %r8 + and $0x10, %r8 + add SRC, %r8 + pslldq $8, MSG + movq (%r8), T0 + pxor T0, MSG + +.Lld_partial_8: + ret +ENDPROC(__load_partial) + +/* + * __store_partial: internal ABI + * input: + * LEN - bytes + * DST - dst + * output: + * T0 - message block + * changed: + * %r8 + * %r9 + * %r10 + */ +__store_partial: + mov LEN, %r8 + mov DST, %r9 + + movq T0, %r10 + + cmp $8, %r8 + jl .Lst_partial_8 + + mov %r10, (%r9) + psrldq $8, T0 + movq T0, %r10 + + sub $8, %r8 + add $8, %r9 + +.Lst_partial_8: + cmp $4, %r8 + jl .Lst_partial_4 + + mov %r10d, (%r9) + shr $32, %r10 + + sub $4, %r8 + add $4, %r9 + +.Lst_partial_4: + cmp $2, %r8 + jl .Lst_partial_2 + + mov %r10w, (%r9) + shr $0x10, %r10 + + sub $2, %r8 + add $2, %r9 + +.Lst_partial_2: + cmp $1, %r8 + jl .Lst_partial_1 + + mov %r10b, (%r9) + +.Lst_partial_1: + ret +ENDPROC(__store_partial) + +/* + * void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv); + */ +ENTRY(crypto_aegis128_aesni_init) + FRAME_BEGIN + + /* load IV: */ + movdqu (%rdx), T1 + + /* load key: */ + movdqa (%rsi), KEY + pxor KEY, T1 + movdqa T1, STATE0 + movdqa KEY, STATE3 + movdqa KEY, STATE4 + + /* load the constants: */ + movdqa .Laegis128_const_0, STATE2 + movdqa .Laegis128_const_1, STATE1 + pxor STATE2, STATE3 + pxor STATE1, STATE4 + + /* update 10 times with KEY / KEY xor IV: */ + aegis128_update; pxor KEY, STATE4 + aegis128_update; pxor T1, STATE3 + aegis128_update; pxor KEY, STATE2 + aegis128_update; pxor T1, STATE1 + aegis128_update; pxor KEY, STATE0 + aegis128_update; pxor T1, STATE4 + aegis128_update; pxor KEY, STATE3 + aegis128_update; pxor T1, STATE2 + aegis128_update; pxor KEY, STATE1 + aegis128_update; pxor T1, STATE0 + + /* store the state: */ + movdqu STATE0, 0x00(STATEP) + movdqu STATE1, 0x10(STATEP) + movdqu STATE2, 0x20(STATEP) + movdqu STATE3, 0x30(STATEP) + movdqu STATE4, 0x40(STATEP) + + FRAME_END + ret +ENDPROC(crypto_aegis128_aesni_init) + +/* + * void crypto_aegis128_aesni_ad(void *state, unsigned int length, + * const void *data); + */ +ENTRY(crypto_aegis128_aesni_ad) + FRAME_BEGIN + + cmp $0x10, LEN + jb .Lad_out + + /* load the state: */ + movdqu 0x00(STATEP), STATE0 + movdqu 0x10(STATEP), STATE1 + movdqu 0x20(STATEP), STATE2 + movdqu 0x30(STATEP), STATE3 + movdqu 0x40(STATEP), STATE4 + + mov SRC, %r8 + and $0xF, %r8 + jnz .Lad_u_loop + +.align 8 +.Lad_a_loop: + movdqa 0x00(SRC), MSG + aegis128_update + pxor MSG, STATE4 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_1 + + movdqa 0x10(SRC), MSG + aegis128_update + pxor MSG, STATE3 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_2 + + movdqa 0x20(SRC), MSG + aegis128_update + pxor MSG, STATE2 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_3 + + movdqa 0x30(SRC), MSG + aegis128_update + pxor MSG, STATE1 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_4 + + movdqa 0x40(SRC), MSG + aegis128_update + pxor MSG, STATE0 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_0 + + add $0x50, SRC + jmp .Lad_a_loop + +.align 8 +.Lad_u_loop: + movdqu 0x00(SRC), MSG + aegis128_update + pxor MSG, STATE4 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_1 + + movdqu 0x10(SRC), MSG + aegis128_update + pxor MSG, STATE3 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_2 + + movdqu 0x20(SRC), MSG + aegis128_update + pxor MSG, STATE2 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_3 + + movdqu 0x30(SRC), MSG + aegis128_update + pxor MSG, STATE1 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_4 + + movdqu 0x40(SRC), MSG + aegis128_update + pxor MSG, STATE0 + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_0 + + add $0x50, SRC + jmp .Lad_u_loop + + /* store the state: */ +.Lad_out_0: + movdqu STATE0, 0x00(STATEP) + movdqu STATE1, 0x10(STATEP) + movdqu STATE2, 0x20(STATEP) + movdqu STATE3, 0x30(STATEP) + movdqu STATE4, 0x40(STATEP) + FRAME_END + ret + +.Lad_out_1: + movdqu STATE4, 0x00(STATEP) + movdqu STATE0, 0x10(STATEP) + movdqu STATE1, 0x20(STATEP) + movdqu STATE2, 0x30(STATEP) + movdqu STATE3, 0x40(STATEP) + FRAME_END + ret + +.Lad_out_2: + movdqu STATE3, 0x00(STATEP) + movdqu STATE4, 0x10(STATEP) + movdqu STATE0, 0x20(STATEP) + movdqu STATE1, 0x30(STATEP) + movdqu STATE2, 0x40(STATEP) + FRAME_END + ret + +.Lad_out_3: + movdqu STATE2, 0x00(STATEP) + movdqu STATE3, 0x10(STATEP) + movdqu STATE4, 0x20(STATEP) + movdqu STATE0, 0x30(STATEP) + movdqu STATE1, 0x40(STATEP) + FRAME_END + ret + +.Lad_out_4: + movdqu STATE1, 0x00(STATEP) + movdqu STATE2, 0x10(STATEP) + movdqu STATE3, 0x20(STATEP) + movdqu STATE4, 0x30(STATEP) + movdqu STATE0, 0x40(STATEP) + FRAME_END + ret + +.Lad_out: + FRAME_END + ret +ENDPROC(crypto_aegis128_aesni_ad) + +.macro encrypt_block a s0 s1 s2 s3 s4 i + movdq\a (\i * 0x10)(SRC), MSG + movdqa MSG, T0 + pxor \s1, T0 + pxor \s4, T0 + movdqa \s2, T1 + pand \s3, T1 + pxor T1, T0 + movdq\a T0, (\i * 0x10)(DST) + + aegis128_update + pxor MSG, \s4 + + sub $0x10, LEN + cmp $0x10, LEN + jl .Lenc_out_\i +.endm + +/* + * void crypto_aegis128_aesni_enc(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis128_aesni_enc) + FRAME_BEGIN + + cmp $0x10, LEN + jb .Lenc_out + + /* load the state: */ + movdqu 0x00(STATEP), STATE0 + movdqu 0x10(STATEP), STATE1 + movdqu 0x20(STATEP), STATE2 + movdqu 0x30(STATEP), STATE3 + movdqu 0x40(STATEP), STATE4 + + mov SRC, %r8 + or DST, %r8 + and $0xF, %r8 + jnz .Lenc_u_loop + +.align 8 +.Lenc_a_loop: + encrypt_block a STATE0 STATE1 STATE2 STATE3 STATE4 0 + encrypt_block a STATE4 STATE0 STATE1 STATE2 STATE3 1 + encrypt_block a STATE3 STATE4 STATE0 STATE1 STATE2 2 + encrypt_block a STATE2 STATE3 STATE4 STATE0 STATE1 3 + encrypt_block a STATE1 STATE2 STATE3 STATE4 STATE0 4 + + add $0x50, SRC + add $0x50, DST + jmp .Lenc_a_loop + +.align 8 +.Lenc_u_loop: + encrypt_block u STATE0 STATE1 STATE2 STATE3 STATE4 0 + encrypt_block u STATE4 STATE0 STATE1 STATE2 STATE3 1 + encrypt_block u STATE3 STATE4 STATE0 STATE1 STATE2 2 + encrypt_block u STATE2 STATE3 STATE4 STATE0 STATE1 3 + encrypt_block u STATE1 STATE2 STATE3 STATE4 STATE0 4 + + add $0x50, SRC + add $0x50, DST + jmp .Lenc_u_loop + + /* store the state: */ +.Lenc_out_0: + movdqu STATE4, 0x00(STATEP) + movdqu STATE0, 0x10(STATEP) + movdqu STATE1, 0x20(STATEP) + movdqu STATE2, 0x30(STATEP) + movdqu STATE3, 0x40(STATEP) + FRAME_END + ret + +.Lenc_out_1: + movdqu STATE3, 0x00(STATEP) + movdqu STATE4, 0x10(STATEP) + movdqu STATE0, 0x20(STATEP) + movdqu STATE1, 0x30(STATEP) + movdqu STATE2, 0x40(STATEP) + FRAME_END + ret + +.Lenc_out_2: + movdqu STATE2, 0x00(STATEP) + movdqu STATE3, 0x10(STATEP) + movdqu STATE4, 0x20(STATEP) + movdqu STATE0, 0x30(STATEP) + movdqu STATE1, 0x40(STATEP) + FRAME_END + ret + +.Lenc_out_3: + movdqu STATE1, 0x00(STATEP) + movdqu STATE2, 0x10(STATEP) + movdqu STATE3, 0x20(STATEP) + movdqu STATE4, 0x30(STATEP) + movdqu STATE0, 0x40(STATEP) + FRAME_END + ret + +.Lenc_out_4: + movdqu STATE0, 0x00(STATEP) + movdqu STATE1, 0x10(STATEP) + movdqu STATE2, 0x20(STATEP) + movdqu STATE3, 0x30(STATEP) + movdqu STATE4, 0x40(STATEP) + FRAME_END + ret + +.Lenc_out: + FRAME_END + ret +ENDPROC(crypto_aegis128_aesni_enc) + +/* + * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis128_aesni_enc_tail) + FRAME_BEGIN + + /* load the state: */ + movdqu 0x00(STATEP), STATE0 + movdqu 0x10(STATEP), STATE1 + movdqu 0x20(STATEP), STATE2 + movdqu 0x30(STATEP), STATE3 + movdqu 0x40(STATEP), STATE4 + + /* encrypt message: */ + call __load_partial + + movdqa MSG, T0 + pxor STATE1, T0 + pxor STATE4, T0 + movdqa STATE2, T1 + pand STATE3, T1 + pxor T1, T0 + + call __store_partial + + aegis128_update + pxor MSG, STATE4 + + /* store the state: */ + movdqu STATE4, 0x00(STATEP) + movdqu STATE0, 0x10(STATEP) + movdqu STATE1, 0x20(STATEP) + movdqu STATE2, 0x30(STATEP) + movdqu STATE3, 0x40(STATEP) + + FRAME_END + ret +ENDPROC(crypto_aegis128_aesni_enc_tail) + +.macro decrypt_block a s0 s1 s2 s3 s4 i + movdq\a (\i * 0x10)(SRC), MSG + pxor \s1, MSG + pxor \s4, MSG + movdqa \s2, T1 + pand \s3, T1 + pxor T1, MSG + movdq\a MSG, (\i * 0x10)(DST) + + aegis128_update + pxor MSG, \s4 + + sub $0x10, LEN + cmp $0x10, LEN + jl .Ldec_out_\i +.endm + +/* + * void crypto_aegis128_aesni_dec(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis128_aesni_dec) + FRAME_BEGIN + + cmp $0x10, LEN + jb .Ldec_out + + /* load the state: */ + movdqu 0x00(STATEP), STATE0 + movdqu 0x10(STATEP), STATE1 + movdqu 0x20(STATEP), STATE2 + movdqu 0x30(STATEP), STATE3 + movdqu 0x40(STATEP), STATE4 + + mov SRC, %r8 + or DST, %r8 + and $0xF, %r8 + jnz .Ldec_u_loop + +.align 8 +.Ldec_a_loop: + decrypt_block a STATE0 STATE1 STATE2 STATE3 STATE4 0 + decrypt_block a STATE4 STATE0 STATE1 STATE2 STATE3 1 + decrypt_block a STATE3 STATE4 STATE0 STATE1 STATE2 2 + decrypt_block a STATE2 STATE3 STATE4 STATE0 STATE1 3 + decrypt_block a STATE1 STATE2 STATE3 STATE4 STATE0 4 + + add $0x50, SRC + add $0x50, DST + jmp .Ldec_a_loop + +.align 8 +.Ldec_u_loop: + decrypt_block u STATE0 STATE1 STATE2 STATE3 STATE4 0 + decrypt_block u STATE4 STATE0 STATE1 STATE2 STATE3 1 + decrypt_block u STATE3 STATE4 STATE0 STATE1 STATE2 2 + decrypt_block u STATE2 STATE3 STATE4 STATE0 STATE1 3 + decrypt_block u STATE1 STATE2 STATE3 STATE4 STATE0 4 + + add $0x50, SRC + add $0x50, DST + jmp .Ldec_u_loop + + /* store the state: */ +.Ldec_out_0: + movdqu STATE4, 0x00(STATEP) + movdqu STATE0, 0x10(STATEP) + movdqu STATE1, 0x20(STATEP) + movdqu STATE2, 0x30(STATEP) + movdqu STATE3, 0x40(STATEP) + FRAME_END + ret + +.Ldec_out_1: + movdqu STATE3, 0x00(STATEP) + movdqu STATE4, 0x10(STATEP) + movdqu STATE0, 0x20(STATEP) + movdqu STATE1, 0x30(STATEP) + movdqu STATE2, 0x40(STATEP) + FRAME_END + ret + +.Ldec_out_2: + movdqu STATE2, 0x00(STATEP) + movdqu STATE3, 0x10(STATEP) + movdqu STATE4, 0x20(STATEP) + movdqu STATE0, 0x30(STATEP) + movdqu STATE1, 0x40(STATEP) + FRAME_END + ret + +.Ldec_out_3: + movdqu STATE1, 0x00(STATEP) + movdqu STATE2, 0x10(STATEP) + movdqu STATE3, 0x20(STATEP) + movdqu STATE4, 0x30(STATEP) + movdqu STATE0, 0x40(STATEP) + FRAME_END + ret + +.Ldec_out_4: + movdqu STATE0, 0x00(STATEP) + movdqu STATE1, 0x10(STATEP) + movdqu STATE2, 0x20(STATEP) + movdqu STATE3, 0x30(STATEP) + movdqu STATE4, 0x40(STATEP) + FRAME_END + ret + +.Ldec_out: + FRAME_END + ret +ENDPROC(crypto_aegis128_aesni_dec) + +/* + * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis128_aesni_dec_tail) + FRAME_BEGIN + + /* load the state: */ + movdqu 0x00(STATEP), STATE0 + movdqu 0x10(STATEP), STATE1 + movdqu 0x20(STATEP), STATE2 + movdqu 0x30(STATEP), STATE3 + movdqu 0x40(STATEP), STATE4 + + /* decrypt message: */ + call __load_partial + + pxor STATE1, MSG + pxor STATE4, MSG + movdqa STATE2, T1 + pand STATE3, T1 + pxor T1, MSG + + movdqa MSG, T0 + call __store_partial + + /* mask with byte count: */ + movq LEN, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + movdqa .Laegis128_counter, T1 + pcmpgtb T1, T0 + pand T0, MSG + + aegis128_update + pxor MSG, STATE4 + + /* store the state: */ + movdqu STATE4, 0x00(STATEP) + movdqu STATE0, 0x10(STATEP) + movdqu STATE1, 0x20(STATEP) + movdqu STATE2, 0x30(STATEP) + movdqu STATE3, 0x40(STATEP) + + FRAME_END + ret +ENDPROC(crypto_aegis128_aesni_dec_tail) + +/* + * void crypto_aegis128_aesni_final(void *state, void *tag_xor, + * u64 assoclen, u64 cryptlen); + */ +ENTRY(crypto_aegis128_aesni_final) + FRAME_BEGIN + + /* load the state: */ + movdqu 0x00(STATEP), STATE0 + movdqu 0x10(STATEP), STATE1 + movdqu 0x20(STATEP), STATE2 + movdqu 0x30(STATEP), STATE3 + movdqu 0x40(STATEP), STATE4 + + /* prepare length block: */ + movq %rdx, MSG + movq %rcx, T0 + pslldq $8, T0 + pxor T0, MSG + psllq $3, MSG /* multiply by 8 (to get bit count) */ + + pxor STATE3, MSG + + /* update state: */ + aegis128_update; pxor MSG, STATE4 + aegis128_update; pxor MSG, STATE3 + aegis128_update; pxor MSG, STATE2 + aegis128_update; pxor MSG, STATE1 + aegis128_update; pxor MSG, STATE0 + aegis128_update; pxor MSG, STATE4 + aegis128_update; pxor MSG, STATE3 + + /* xor tag: */ + movdqu (%rsi), MSG + + pxor STATE0, MSG + pxor STATE1, MSG + pxor STATE2, MSG + pxor STATE3, MSG + pxor STATE4, MSG + + movdqu MSG, (%rsi) + + FRAME_END + ret +ENDPROC(crypto_aegis128_aesni_final) diff --git a/arch/x86/crypto/aegis128-aesni-glue.c b/arch/x86/crypto/aegis128-aesni-glue.c new file mode 100644 index 000000000..3ea71b871 --- /dev/null +++ b/arch/x86/crypto/aegis128-aesni-glue.c @@ -0,0 +1,394 @@ +/* + * The AEGIS-128 Authenticated-Encryption Algorithm + * Glue for AES-NI + SSE2 implementation + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <crypto/cryptd.h> +#include <crypto/internal/aead.h> +#include <crypto/internal/skcipher.h> +#include <crypto/scatterwalk.h> +#include <linux/module.h> +#include <asm/fpu/api.h> +#include <asm/cpu_device_id.h> + +#define AEGIS128_BLOCK_ALIGN 16 +#define AEGIS128_BLOCK_SIZE 16 +#define AEGIS128_NONCE_SIZE 16 +#define AEGIS128_STATE_BLOCKS 5 +#define AEGIS128_KEY_SIZE 16 +#define AEGIS128_MIN_AUTH_SIZE 8 +#define AEGIS128_MAX_AUTH_SIZE 16 + +asmlinkage void crypto_aegis128_aesni_init(void *state, void *key, void *iv); + +asmlinkage void crypto_aegis128_aesni_ad( + void *state, unsigned int length, const void *data); + +asmlinkage void crypto_aegis128_aesni_enc( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis128_aesni_dec( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis128_aesni_enc_tail( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis128_aesni_dec_tail( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis128_aesni_final( + void *state, void *tag_xor, unsigned int cryptlen, + unsigned int assoclen); + +struct aegis_block { + u8 bytes[AEGIS128_BLOCK_SIZE] __aligned(AEGIS128_BLOCK_ALIGN); +}; + +struct aegis_state { + struct aegis_block blocks[AEGIS128_STATE_BLOCKS]; +}; + +struct aegis_ctx { + struct aegis_block key; +}; + +struct aegis_crypt_ops { + int (*skcipher_walk_init)(struct skcipher_walk *walk, + struct aead_request *req, bool atomic); + + void (*crypt_blocks)(void *state, unsigned int length, const void *src, + void *dst); + void (*crypt_tail)(void *state, unsigned int length, const void *src, + void *dst); +}; + +static void crypto_aegis128_aesni_process_ad( + struct aegis_state *state, struct scatterlist *sg_src, + unsigned int assoclen) +{ + struct scatter_walk walk; + struct aegis_block buf; + unsigned int pos = 0; + + scatterwalk_start(&walk, sg_src); + while (assoclen != 0) { + unsigned int size = scatterwalk_clamp(&walk, assoclen); + unsigned int left = size; + void *mapped = scatterwalk_map(&walk); + const u8 *src = (const u8 *)mapped; + + if (pos + size >= AEGIS128_BLOCK_SIZE) { + if (pos > 0) { + unsigned int fill = AEGIS128_BLOCK_SIZE - pos; + memcpy(buf.bytes + pos, src, fill); + crypto_aegis128_aesni_ad(state, + AEGIS128_BLOCK_SIZE, + buf.bytes); + pos = 0; + left -= fill; + src += fill; + } + + crypto_aegis128_aesni_ad(state, left, src); + + src += left & ~(AEGIS128_BLOCK_SIZE - 1); + left &= AEGIS128_BLOCK_SIZE - 1; + } + + memcpy(buf.bytes + pos, src, left); + pos += left; + assoclen -= size; + + scatterwalk_unmap(mapped); + scatterwalk_advance(&walk, size); + scatterwalk_done(&walk, 0, assoclen); + } + + if (pos > 0) { + memset(buf.bytes + pos, 0, AEGIS128_BLOCK_SIZE - pos); + crypto_aegis128_aesni_ad(state, AEGIS128_BLOCK_SIZE, buf.bytes); + } +} + +static void crypto_aegis128_aesni_process_crypt( + struct aegis_state *state, struct skcipher_walk *walk, + const struct aegis_crypt_ops *ops) +{ + while (walk->nbytes >= AEGIS128_BLOCK_SIZE) { + ops->crypt_blocks(state, + round_down(walk->nbytes, AEGIS128_BLOCK_SIZE), + walk->src.virt.addr, walk->dst.virt.addr); + skcipher_walk_done(walk, walk->nbytes % AEGIS128_BLOCK_SIZE); + } + + if (walk->nbytes) { + ops->crypt_tail(state, walk->nbytes, walk->src.virt.addr, + walk->dst.virt.addr); + skcipher_walk_done(walk, 0); + } +} + +static struct aegis_ctx *crypto_aegis128_aesni_ctx(struct crypto_aead *aead) +{ + u8 *ctx = crypto_aead_ctx(aead); + ctx = PTR_ALIGN(ctx, __alignof__(struct aegis_ctx)); + return (void *)ctx; +} + +static int crypto_aegis128_aesni_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct aegis_ctx *ctx = crypto_aegis128_aesni_ctx(aead); + + if (keylen != AEGIS128_KEY_SIZE) { + crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + + memcpy(ctx->key.bytes, key, AEGIS128_KEY_SIZE); + + return 0; +} + +static int crypto_aegis128_aesni_setauthsize(struct crypto_aead *tfm, + unsigned int authsize) +{ + if (authsize > AEGIS128_MAX_AUTH_SIZE) + return -EINVAL; + if (authsize < AEGIS128_MIN_AUTH_SIZE) + return -EINVAL; + return 0; +} + +static void crypto_aegis128_aesni_crypt(struct aead_request *req, + struct aegis_block *tag_xor, + unsigned int cryptlen, + const struct aegis_crypt_ops *ops) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_ctx *ctx = crypto_aegis128_aesni_ctx(tfm); + struct skcipher_walk walk; + struct aegis_state state; + + ops->skcipher_walk_init(&walk, req, true); + + kernel_fpu_begin(); + + crypto_aegis128_aesni_init(&state, ctx->key.bytes, req->iv); + crypto_aegis128_aesni_process_ad(&state, req->src, req->assoclen); + crypto_aegis128_aesni_process_crypt(&state, &walk, ops); + crypto_aegis128_aesni_final(&state, tag_xor, req->assoclen, cryptlen); + + kernel_fpu_end(); +} + +static int crypto_aegis128_aesni_encrypt(struct aead_request *req) +{ + static const struct aegis_crypt_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_encrypt, + .crypt_blocks = crypto_aegis128_aesni_enc, + .crypt_tail = crypto_aegis128_aesni_enc_tail, + }; + + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_block tag = {}; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen; + + crypto_aegis128_aesni_crypt(req, &tag, cryptlen, &OPS); + + scatterwalk_map_and_copy(tag.bytes, req->dst, + req->assoclen + cryptlen, authsize, 1); + return 0; +} + +static int crypto_aegis128_aesni_decrypt(struct aead_request *req) +{ + static const struct aegis_block zeros = {}; + + static const struct aegis_crypt_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_decrypt, + .crypt_blocks = crypto_aegis128_aesni_dec, + .crypt_tail = crypto_aegis128_aesni_dec_tail, + }; + + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_block tag; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen - authsize; + + scatterwalk_map_and_copy(tag.bytes, req->src, + req->assoclen + cryptlen, authsize, 0); + + crypto_aegis128_aesni_crypt(req, &tag, cryptlen, &OPS); + + return crypto_memneq(tag.bytes, zeros.bytes, authsize) ? -EBADMSG : 0; +} + +static int crypto_aegis128_aesni_init_tfm(struct crypto_aead *aead) +{ + return 0; +} + +static void crypto_aegis128_aesni_exit_tfm(struct crypto_aead *aead) +{ +} + +static int cryptd_aegis128_aesni_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setkey(&cryptd_tfm->base, key, keylen); +} + +static int cryptd_aegis128_aesni_setauthsize(struct crypto_aead *aead, + unsigned int authsize) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setauthsize(&cryptd_tfm->base, authsize); +} + +static int cryptd_aegis128_aesni_encrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_encrypt(req); +} + +static int cryptd_aegis128_aesni_decrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_decrypt(req); +} + +static int cryptd_aegis128_aesni_init_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead *cryptd_tfm; + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_tfm = cryptd_alloc_aead("__aegis128-aesni", CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(cryptd_tfm)) + return PTR_ERR(cryptd_tfm); + + *ctx = cryptd_tfm; + crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); + return 0; +} + +static void cryptd_aegis128_aesni_exit_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_free_aead(*ctx); +} + +static struct aead_alg crypto_aegis128_aesni_alg[] = { + { + .setkey = crypto_aegis128_aesni_setkey, + .setauthsize = crypto_aegis128_aesni_setauthsize, + .encrypt = crypto_aegis128_aesni_encrypt, + .decrypt = crypto_aegis128_aesni_decrypt, + .init = crypto_aegis128_aesni_init_tfm, + .exit = crypto_aegis128_aesni_exit_tfm, + + .ivsize = AEGIS128_NONCE_SIZE, + .maxauthsize = AEGIS128_MAX_AUTH_SIZE, + .chunksize = AEGIS128_BLOCK_SIZE, + + .base = { + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct aegis_ctx) + + __alignof__(struct aegis_ctx), + .cra_alignmask = 0, + + .cra_name = "__aegis128", + .cra_driver_name = "__aegis128-aesni", + + .cra_module = THIS_MODULE, + } + }, { + .setkey = cryptd_aegis128_aesni_setkey, + .setauthsize = cryptd_aegis128_aesni_setauthsize, + .encrypt = cryptd_aegis128_aesni_encrypt, + .decrypt = cryptd_aegis128_aesni_decrypt, + .init = cryptd_aegis128_aesni_init_tfm, + .exit = cryptd_aegis128_aesni_exit_tfm, + + .ivsize = AEGIS128_NONCE_SIZE, + .maxauthsize = AEGIS128_MAX_AUTH_SIZE, + .chunksize = AEGIS128_BLOCK_SIZE, + + .base = { + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct cryptd_aead *), + .cra_alignmask = 0, + + .cra_priority = 400, + + .cra_name = "aegis128", + .cra_driver_name = "aegis128-aesni", + + .cra_module = THIS_MODULE, + } + } +}; + +static int __init crypto_aegis128_aesni_module_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_XMM2) || + !boot_cpu_has(X86_FEATURE_AES) || + !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) + return -ENODEV; + + return crypto_register_aeads(crypto_aegis128_aesni_alg, + ARRAY_SIZE(crypto_aegis128_aesni_alg)); +} + +static void __exit crypto_aegis128_aesni_module_exit(void) +{ + crypto_unregister_aeads(crypto_aegis128_aesni_alg, + ARRAY_SIZE(crypto_aegis128_aesni_alg)); +} + +module_init(crypto_aegis128_aesni_module_init); +module_exit(crypto_aegis128_aesni_module_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); +MODULE_DESCRIPTION("AEGIS-128 AEAD algorithm -- AESNI+SSE2 implementation"); +MODULE_ALIAS_CRYPTO("aegis128"); +MODULE_ALIAS_CRYPTO("aegis128-aesni"); diff --git a/arch/x86/crypto/aegis128l-aesni-asm.S b/arch/x86/crypto/aegis128l-aesni-asm.S new file mode 100644 index 000000000..491dd61c8 --- /dev/null +++ b/arch/x86/crypto/aegis128l-aesni-asm.S @@ -0,0 +1,826 @@ +/* + * AES-NI + SSE2 implementation of AEGIS-128L + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> + +#define STATE0 %xmm0 +#define STATE1 %xmm1 +#define STATE2 %xmm2 +#define STATE3 %xmm3 +#define STATE4 %xmm4 +#define STATE5 %xmm5 +#define STATE6 %xmm6 +#define STATE7 %xmm7 +#define MSG0 %xmm8 +#define MSG1 %xmm9 +#define T0 %xmm10 +#define T1 %xmm11 +#define T2 %xmm12 +#define T3 %xmm13 + +#define STATEP %rdi +#define LEN %rsi +#define SRC %rdx +#define DST %rcx + +.section .rodata.cst16.aegis128l_const, "aM", @progbits, 32 +.align 16 +.Laegis128l_const_0: + .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d + .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 +.Laegis128l_const_1: + .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 + .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd + +.section .rodata.cst16.aegis128l_counter, "aM", @progbits, 16 +.align 16 +.Laegis128l_counter0: + .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 + .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f +.Laegis128l_counter1: + .byte 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 + .byte 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f + +.text + +/* + * __load_partial: internal ABI + * input: + * LEN - bytes + * SRC - src + * output: + * MSG0 - first message block + * MSG1 - second message block + * changed: + * T0 + * %r8 + * %r9 + */ +__load_partial: + xor %r9d, %r9d + pxor MSG0, MSG0 + pxor MSG1, MSG1 + + mov LEN, %r8 + and $0x1, %r8 + jz .Lld_partial_1 + + mov LEN, %r8 + and $0x1E, %r8 + add SRC, %r8 + mov (%r8), %r9b + +.Lld_partial_1: + mov LEN, %r8 + and $0x2, %r8 + jz .Lld_partial_2 + + mov LEN, %r8 + and $0x1C, %r8 + add SRC, %r8 + shl $0x10, %r9 + mov (%r8), %r9w + +.Lld_partial_2: + mov LEN, %r8 + and $0x4, %r8 + jz .Lld_partial_4 + + mov LEN, %r8 + and $0x18, %r8 + add SRC, %r8 + shl $32, %r9 + mov (%r8), %r8d + xor %r8, %r9 + +.Lld_partial_4: + movq %r9, MSG0 + + mov LEN, %r8 + and $0x8, %r8 + jz .Lld_partial_8 + + mov LEN, %r8 + and $0x10, %r8 + add SRC, %r8 + pslldq $8, MSG0 + movq (%r8), T0 + pxor T0, MSG0 + +.Lld_partial_8: + mov LEN, %r8 + and $0x10, %r8 + jz .Lld_partial_16 + + movdqa MSG0, MSG1 + movdqu (SRC), MSG0 + +.Lld_partial_16: + ret +ENDPROC(__load_partial) + +/* + * __store_partial: internal ABI + * input: + * LEN - bytes + * DST - dst + * output: + * T0 - first message block + * T1 - second message block + * changed: + * %r8 + * %r9 + * %r10 + */ +__store_partial: + mov LEN, %r8 + mov DST, %r9 + + cmp $16, %r8 + jl .Lst_partial_16 + + movdqu T0, (%r9) + movdqa T1, T0 + + sub $16, %r8 + add $16, %r9 + +.Lst_partial_16: + movq T0, %r10 + + cmp $8, %r8 + jl .Lst_partial_8 + + mov %r10, (%r9) + psrldq $8, T0 + movq T0, %r10 + + sub $8, %r8 + add $8, %r9 + +.Lst_partial_8: + cmp $4, %r8 + jl .Lst_partial_4 + + mov %r10d, (%r9) + shr $32, %r10 + + sub $4, %r8 + add $4, %r9 + +.Lst_partial_4: + cmp $2, %r8 + jl .Lst_partial_2 + + mov %r10w, (%r9) + shr $0x10, %r10 + + sub $2, %r8 + add $2, %r9 + +.Lst_partial_2: + cmp $1, %r8 + jl .Lst_partial_1 + + mov %r10b, (%r9) + +.Lst_partial_1: + ret +ENDPROC(__store_partial) + +.macro update + movdqa STATE7, T0 + aesenc STATE0, STATE7 + aesenc STATE1, STATE0 + aesenc STATE2, STATE1 + aesenc STATE3, STATE2 + aesenc STATE4, STATE3 + aesenc STATE5, STATE4 + aesenc STATE6, STATE5 + aesenc T0, STATE6 +.endm + +.macro update0 + update + pxor MSG0, STATE7 + pxor MSG1, STATE3 +.endm + +.macro update1 + update + pxor MSG0, STATE6 + pxor MSG1, STATE2 +.endm + +.macro update2 + update + pxor MSG0, STATE5 + pxor MSG1, STATE1 +.endm + +.macro update3 + update + pxor MSG0, STATE4 + pxor MSG1, STATE0 +.endm + +.macro update4 + update + pxor MSG0, STATE3 + pxor MSG1, STATE7 +.endm + +.macro update5 + update + pxor MSG0, STATE2 + pxor MSG1, STATE6 +.endm + +.macro update6 + update + pxor MSG0, STATE1 + pxor MSG1, STATE5 +.endm + +.macro update7 + update + pxor MSG0, STATE0 + pxor MSG1, STATE4 +.endm + +.macro state_load + movdqu 0x00(STATEP), STATE0 + movdqu 0x10(STATEP), STATE1 + movdqu 0x20(STATEP), STATE2 + movdqu 0x30(STATEP), STATE3 + movdqu 0x40(STATEP), STATE4 + movdqu 0x50(STATEP), STATE5 + movdqu 0x60(STATEP), STATE6 + movdqu 0x70(STATEP), STATE7 +.endm + +.macro state_store s0 s1 s2 s3 s4 s5 s6 s7 + movdqu \s7, 0x00(STATEP) + movdqu \s0, 0x10(STATEP) + movdqu \s1, 0x20(STATEP) + movdqu \s2, 0x30(STATEP) + movdqu \s3, 0x40(STATEP) + movdqu \s4, 0x50(STATEP) + movdqu \s5, 0x60(STATEP) + movdqu \s6, 0x70(STATEP) +.endm + +.macro state_store0 + state_store STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 +.endm + +.macro state_store1 + state_store STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 +.endm + +.macro state_store2 + state_store STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 +.endm + +.macro state_store3 + state_store STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 +.endm + +.macro state_store4 + state_store STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 +.endm + +.macro state_store5 + state_store STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 +.endm + +.macro state_store6 + state_store STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 +.endm + +.macro state_store7 + state_store STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 +.endm + +/* + * void crypto_aegis128l_aesni_init(void *state, const void *key, const void *iv); + */ +ENTRY(crypto_aegis128l_aesni_init) + FRAME_BEGIN + + /* load key: */ + movdqa (%rsi), MSG1 + movdqa MSG1, STATE0 + movdqa MSG1, STATE4 + movdqa MSG1, STATE5 + movdqa MSG1, STATE6 + movdqa MSG1, STATE7 + + /* load IV: */ + movdqu (%rdx), MSG0 + pxor MSG0, STATE0 + pxor MSG0, STATE4 + + /* load the constants: */ + movdqa .Laegis128l_const_0, STATE2 + movdqa .Laegis128l_const_1, STATE1 + movdqa STATE1, STATE3 + pxor STATE2, STATE5 + pxor STATE1, STATE6 + pxor STATE2, STATE7 + + /* update 10 times with IV and KEY: */ + update0 + update1 + update2 + update3 + update4 + update5 + update6 + update7 + update0 + update1 + + state_store1 + + FRAME_END + ret +ENDPROC(crypto_aegis128l_aesni_init) + +.macro ad_block a i + movdq\a (\i * 0x20 + 0x00)(SRC), MSG0 + movdq\a (\i * 0x20 + 0x10)(SRC), MSG1 + update\i + sub $0x20, LEN + cmp $0x20, LEN + jl .Lad_out_\i +.endm + +/* + * void crypto_aegis128l_aesni_ad(void *state, unsigned int length, + * const void *data); + */ +ENTRY(crypto_aegis128l_aesni_ad) + FRAME_BEGIN + + cmp $0x20, LEN + jb .Lad_out + + state_load + + mov SRC, %r8 + and $0xf, %r8 + jnz .Lad_u_loop + +.align 8 +.Lad_a_loop: + ad_block a 0 + ad_block a 1 + ad_block a 2 + ad_block a 3 + ad_block a 4 + ad_block a 5 + ad_block a 6 + ad_block a 7 + + add $0x100, SRC + jmp .Lad_a_loop + +.align 8 +.Lad_u_loop: + ad_block u 0 + ad_block u 1 + ad_block u 2 + ad_block u 3 + ad_block u 4 + ad_block u 5 + ad_block u 6 + ad_block u 7 + + add $0x100, SRC + jmp .Lad_u_loop + +.Lad_out_0: + state_store0 + FRAME_END + ret + +.Lad_out_1: + state_store1 + FRAME_END + ret + +.Lad_out_2: + state_store2 + FRAME_END + ret + +.Lad_out_3: + state_store3 + FRAME_END + ret + +.Lad_out_4: + state_store4 + FRAME_END + ret + +.Lad_out_5: + state_store5 + FRAME_END + ret + +.Lad_out_6: + state_store6 + FRAME_END + ret + +.Lad_out_7: + state_store7 + FRAME_END + ret + +.Lad_out: + FRAME_END + ret +ENDPROC(crypto_aegis128l_aesni_ad) + +.macro crypt m0 m1 s0 s1 s2 s3 s4 s5 s6 s7 + pxor \s1, \m0 + pxor \s6, \m0 + movdqa \s2, T3 + pand \s3, T3 + pxor T3, \m0 + + pxor \s2, \m1 + pxor \s5, \m1 + movdqa \s6, T3 + pand \s7, T3 + pxor T3, \m1 +.endm + +.macro crypt0 m0 m1 + crypt \m0 \m1 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 +.endm + +.macro crypt1 m0 m1 + crypt \m0 \m1 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 +.endm + +.macro crypt2 m0 m1 + crypt \m0 \m1 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 +.endm + +.macro crypt3 m0 m1 + crypt \m0 \m1 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 +.endm + +.macro crypt4 m0 m1 + crypt \m0 \m1 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 +.endm + +.macro crypt5 m0 m1 + crypt \m0 \m1 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 +.endm + +.macro crypt6 m0 m1 + crypt \m0 \m1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 +.endm + +.macro crypt7 m0 m1 + crypt \m0 \m1 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 +.endm + +.macro encrypt_block a i + movdq\a (\i * 0x20 + 0x00)(SRC), MSG0 + movdq\a (\i * 0x20 + 0x10)(SRC), MSG1 + movdqa MSG0, T0 + movdqa MSG1, T1 + crypt\i T0, T1 + movdq\a T0, (\i * 0x20 + 0x00)(DST) + movdq\a T1, (\i * 0x20 + 0x10)(DST) + + update\i + + sub $0x20, LEN + cmp $0x20, LEN + jl .Lenc_out_\i +.endm + +.macro decrypt_block a i + movdq\a (\i * 0x20 + 0x00)(SRC), MSG0 + movdq\a (\i * 0x20 + 0x10)(SRC), MSG1 + crypt\i MSG0, MSG1 + movdq\a MSG0, (\i * 0x20 + 0x00)(DST) + movdq\a MSG1, (\i * 0x20 + 0x10)(DST) + + update\i + + sub $0x20, LEN + cmp $0x20, LEN + jl .Ldec_out_\i +.endm + +/* + * void crypto_aegis128l_aesni_enc(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis128l_aesni_enc) + FRAME_BEGIN + + cmp $0x20, LEN + jb .Lenc_out + + state_load + + mov SRC, %r8 + or DST, %r8 + and $0xf, %r8 + jnz .Lenc_u_loop + +.align 8 +.Lenc_a_loop: + encrypt_block a 0 + encrypt_block a 1 + encrypt_block a 2 + encrypt_block a 3 + encrypt_block a 4 + encrypt_block a 5 + encrypt_block a 6 + encrypt_block a 7 + + add $0x100, SRC + add $0x100, DST + jmp .Lenc_a_loop + +.align 8 +.Lenc_u_loop: + encrypt_block u 0 + encrypt_block u 1 + encrypt_block u 2 + encrypt_block u 3 + encrypt_block u 4 + encrypt_block u 5 + encrypt_block u 6 + encrypt_block u 7 + + add $0x100, SRC + add $0x100, DST + jmp .Lenc_u_loop + +.Lenc_out_0: + state_store0 + FRAME_END + ret + +.Lenc_out_1: + state_store1 + FRAME_END + ret + +.Lenc_out_2: + state_store2 + FRAME_END + ret + +.Lenc_out_3: + state_store3 + FRAME_END + ret + +.Lenc_out_4: + state_store4 + FRAME_END + ret + +.Lenc_out_5: + state_store5 + FRAME_END + ret + +.Lenc_out_6: + state_store6 + FRAME_END + ret + +.Lenc_out_7: + state_store7 + FRAME_END + ret + +.Lenc_out: + FRAME_END + ret +ENDPROC(crypto_aegis128l_aesni_enc) + +/* + * void crypto_aegis128l_aesni_enc_tail(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis128l_aesni_enc_tail) + FRAME_BEGIN + + state_load + + /* encrypt message: */ + call __load_partial + + movdqa MSG0, T0 + movdqa MSG1, T1 + crypt0 T0, T1 + + call __store_partial + + update0 + + state_store0 + + FRAME_END + ret +ENDPROC(crypto_aegis128l_aesni_enc_tail) + +/* + * void crypto_aegis128l_aesni_dec(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis128l_aesni_dec) + FRAME_BEGIN + + cmp $0x20, LEN + jb .Ldec_out + + state_load + + mov SRC, %r8 + or DST, %r8 + and $0xF, %r8 + jnz .Ldec_u_loop + +.align 8 +.Ldec_a_loop: + decrypt_block a 0 + decrypt_block a 1 + decrypt_block a 2 + decrypt_block a 3 + decrypt_block a 4 + decrypt_block a 5 + decrypt_block a 6 + decrypt_block a 7 + + add $0x100, SRC + add $0x100, DST + jmp .Ldec_a_loop + +.align 8 +.Ldec_u_loop: + decrypt_block u 0 + decrypt_block u 1 + decrypt_block u 2 + decrypt_block u 3 + decrypt_block u 4 + decrypt_block u 5 + decrypt_block u 6 + decrypt_block u 7 + + add $0x100, SRC + add $0x100, DST + jmp .Ldec_u_loop + +.Ldec_out_0: + state_store0 + FRAME_END + ret + +.Ldec_out_1: + state_store1 + FRAME_END + ret + +.Ldec_out_2: + state_store2 + FRAME_END + ret + +.Ldec_out_3: + state_store3 + FRAME_END + ret + +.Ldec_out_4: + state_store4 + FRAME_END + ret + +.Ldec_out_5: + state_store5 + FRAME_END + ret + +.Ldec_out_6: + state_store6 + FRAME_END + ret + +.Ldec_out_7: + state_store7 + FRAME_END + ret + +.Ldec_out: + FRAME_END + ret +ENDPROC(crypto_aegis128l_aesni_dec) + +/* + * void crypto_aegis128l_aesni_dec_tail(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis128l_aesni_dec_tail) + FRAME_BEGIN + + state_load + + /* decrypt message: */ + call __load_partial + + crypt0 MSG0, MSG1 + + movdqa MSG0, T0 + movdqa MSG1, T1 + call __store_partial + + /* mask with byte count: */ + movq LEN, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + movdqa T0, T1 + movdqa .Laegis128l_counter0, T2 + movdqa .Laegis128l_counter1, T3 + pcmpgtb T2, T0 + pcmpgtb T3, T1 + pand T0, MSG0 + pand T1, MSG1 + + update0 + + state_store0 + + FRAME_END + ret +ENDPROC(crypto_aegis128l_aesni_dec_tail) + +/* + * void crypto_aegis128l_aesni_final(void *state, void *tag_xor, + * u64 assoclen, u64 cryptlen); + */ +ENTRY(crypto_aegis128l_aesni_final) + FRAME_BEGIN + + state_load + + /* prepare length block: */ + movq %rdx, MSG0 + movq %rcx, T0 + pslldq $8, T0 + pxor T0, MSG0 + psllq $3, MSG0 /* multiply by 8 (to get bit count) */ + + pxor STATE2, MSG0 + movdqa MSG0, MSG1 + + /* update state: */ + update0 + update1 + update2 + update3 + update4 + update5 + update6 + + /* xor tag: */ + movdqu (%rsi), T0 + + pxor STATE1, T0 + pxor STATE2, T0 + pxor STATE3, T0 + pxor STATE4, T0 + pxor STATE5, T0 + pxor STATE6, T0 + pxor STATE7, T0 + + movdqu T0, (%rsi) + + FRAME_END + ret +ENDPROC(crypto_aegis128l_aesni_final) diff --git a/arch/x86/crypto/aegis128l-aesni-glue.c b/arch/x86/crypto/aegis128l-aesni-glue.c new file mode 100644 index 000000000..1b1b39c66 --- /dev/null +++ b/arch/x86/crypto/aegis128l-aesni-glue.c @@ -0,0 +1,394 @@ +/* + * The AEGIS-128L Authenticated-Encryption Algorithm + * Glue for AES-NI + SSE2 implementation + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <crypto/cryptd.h> +#include <crypto/internal/aead.h> +#include <crypto/internal/skcipher.h> +#include <crypto/scatterwalk.h> +#include <linux/module.h> +#include <asm/fpu/api.h> +#include <asm/cpu_device_id.h> + +#define AEGIS128L_BLOCK_ALIGN 16 +#define AEGIS128L_BLOCK_SIZE 32 +#define AEGIS128L_NONCE_SIZE 16 +#define AEGIS128L_STATE_BLOCKS 8 +#define AEGIS128L_KEY_SIZE 16 +#define AEGIS128L_MIN_AUTH_SIZE 8 +#define AEGIS128L_MAX_AUTH_SIZE 16 + +asmlinkage void crypto_aegis128l_aesni_init(void *state, void *key, void *iv); + +asmlinkage void crypto_aegis128l_aesni_ad( + void *state, unsigned int length, const void *data); + +asmlinkage void crypto_aegis128l_aesni_enc( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis128l_aesni_dec( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis128l_aesni_enc_tail( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis128l_aesni_dec_tail( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis128l_aesni_final( + void *state, void *tag_xor, unsigned int cryptlen, + unsigned int assoclen); + +struct aegis_block { + u8 bytes[AEGIS128L_BLOCK_SIZE] __aligned(AEGIS128L_BLOCK_ALIGN); +}; + +struct aegis_state { + struct aegis_block blocks[AEGIS128L_STATE_BLOCKS]; +}; + +struct aegis_ctx { + struct aegis_block key; +}; + +struct aegis_crypt_ops { + int (*skcipher_walk_init)(struct skcipher_walk *walk, + struct aead_request *req, bool atomic); + + void (*crypt_blocks)(void *state, unsigned int length, const void *src, + void *dst); + void (*crypt_tail)(void *state, unsigned int length, const void *src, + void *dst); +}; + +static void crypto_aegis128l_aesni_process_ad( + struct aegis_state *state, struct scatterlist *sg_src, + unsigned int assoclen) +{ + struct scatter_walk walk; + struct aegis_block buf; + unsigned int pos = 0; + + scatterwalk_start(&walk, sg_src); + while (assoclen != 0) { + unsigned int size = scatterwalk_clamp(&walk, assoclen); + unsigned int left = size; + void *mapped = scatterwalk_map(&walk); + const u8 *src = (const u8 *)mapped; + + if (pos + size >= AEGIS128L_BLOCK_SIZE) { + if (pos > 0) { + unsigned int fill = AEGIS128L_BLOCK_SIZE - pos; + memcpy(buf.bytes + pos, src, fill); + crypto_aegis128l_aesni_ad(state, + AEGIS128L_BLOCK_SIZE, + buf.bytes); + pos = 0; + left -= fill; + src += fill; + } + + crypto_aegis128l_aesni_ad(state, left, src); + + src += left & ~(AEGIS128L_BLOCK_SIZE - 1); + left &= AEGIS128L_BLOCK_SIZE - 1; + } + + memcpy(buf.bytes + pos, src, left); + pos += left; + assoclen -= size; + + scatterwalk_unmap(mapped); + scatterwalk_advance(&walk, size); + scatterwalk_done(&walk, 0, assoclen); + } + + if (pos > 0) { + memset(buf.bytes + pos, 0, AEGIS128L_BLOCK_SIZE - pos); + crypto_aegis128l_aesni_ad(state, AEGIS128L_BLOCK_SIZE, buf.bytes); + } +} + +static void crypto_aegis128l_aesni_process_crypt( + struct aegis_state *state, struct skcipher_walk *walk, + const struct aegis_crypt_ops *ops) +{ + while (walk->nbytes >= AEGIS128L_BLOCK_SIZE) { + ops->crypt_blocks(state, round_down(walk->nbytes, + AEGIS128L_BLOCK_SIZE), + walk->src.virt.addr, walk->dst.virt.addr); + skcipher_walk_done(walk, walk->nbytes % AEGIS128L_BLOCK_SIZE); + } + + if (walk->nbytes) { + ops->crypt_tail(state, walk->nbytes, walk->src.virt.addr, + walk->dst.virt.addr); + skcipher_walk_done(walk, 0); + } +} + +static struct aegis_ctx *crypto_aegis128l_aesni_ctx(struct crypto_aead *aead) +{ + u8 *ctx = crypto_aead_ctx(aead); + ctx = PTR_ALIGN(ctx, __alignof__(struct aegis_ctx)); + return (void *)ctx; +} + +static int crypto_aegis128l_aesni_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct aegis_ctx *ctx = crypto_aegis128l_aesni_ctx(aead); + + if (keylen != AEGIS128L_KEY_SIZE) { + crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + + memcpy(ctx->key.bytes, key, AEGIS128L_KEY_SIZE); + + return 0; +} + +static int crypto_aegis128l_aesni_setauthsize(struct crypto_aead *tfm, + unsigned int authsize) +{ + if (authsize > AEGIS128L_MAX_AUTH_SIZE) + return -EINVAL; + if (authsize < AEGIS128L_MIN_AUTH_SIZE) + return -EINVAL; + return 0; +} + +static void crypto_aegis128l_aesni_crypt(struct aead_request *req, + struct aegis_block *tag_xor, + unsigned int cryptlen, + const struct aegis_crypt_ops *ops) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_ctx *ctx = crypto_aegis128l_aesni_ctx(tfm); + struct skcipher_walk walk; + struct aegis_state state; + + ops->skcipher_walk_init(&walk, req, true); + + kernel_fpu_begin(); + + crypto_aegis128l_aesni_init(&state, ctx->key.bytes, req->iv); + crypto_aegis128l_aesni_process_ad(&state, req->src, req->assoclen); + crypto_aegis128l_aesni_process_crypt(&state, &walk, ops); + crypto_aegis128l_aesni_final(&state, tag_xor, req->assoclen, cryptlen); + + kernel_fpu_end(); +} + +static int crypto_aegis128l_aesni_encrypt(struct aead_request *req) +{ + static const struct aegis_crypt_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_encrypt, + .crypt_blocks = crypto_aegis128l_aesni_enc, + .crypt_tail = crypto_aegis128l_aesni_enc_tail, + }; + + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_block tag = {}; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen; + + crypto_aegis128l_aesni_crypt(req, &tag, cryptlen, &OPS); + + scatterwalk_map_and_copy(tag.bytes, req->dst, + req->assoclen + cryptlen, authsize, 1); + return 0; +} + +static int crypto_aegis128l_aesni_decrypt(struct aead_request *req) +{ + static const struct aegis_block zeros = {}; + + static const struct aegis_crypt_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_decrypt, + .crypt_blocks = crypto_aegis128l_aesni_dec, + .crypt_tail = crypto_aegis128l_aesni_dec_tail, + }; + + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_block tag; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen - authsize; + + scatterwalk_map_and_copy(tag.bytes, req->src, + req->assoclen + cryptlen, authsize, 0); + + crypto_aegis128l_aesni_crypt(req, &tag, cryptlen, &OPS); + + return crypto_memneq(tag.bytes, zeros.bytes, authsize) ? -EBADMSG : 0; +} + +static int crypto_aegis128l_aesni_init_tfm(struct crypto_aead *aead) +{ + return 0; +} + +static void crypto_aegis128l_aesni_exit_tfm(struct crypto_aead *aead) +{ +} + +static int cryptd_aegis128l_aesni_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setkey(&cryptd_tfm->base, key, keylen); +} + +static int cryptd_aegis128l_aesni_setauthsize(struct crypto_aead *aead, + unsigned int authsize) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setauthsize(&cryptd_tfm->base, authsize); +} + +static int cryptd_aegis128l_aesni_encrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_encrypt(req); +} + +static int cryptd_aegis128l_aesni_decrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_decrypt(req); +} + +static int cryptd_aegis128l_aesni_init_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead *cryptd_tfm; + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_tfm = cryptd_alloc_aead("__aegis128l-aesni", CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(cryptd_tfm)) + return PTR_ERR(cryptd_tfm); + + *ctx = cryptd_tfm; + crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); + return 0; +} + +static void cryptd_aegis128l_aesni_exit_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_free_aead(*ctx); +} + +static struct aead_alg crypto_aegis128l_aesni_alg[] = { + { + .setkey = crypto_aegis128l_aesni_setkey, + .setauthsize = crypto_aegis128l_aesni_setauthsize, + .encrypt = crypto_aegis128l_aesni_encrypt, + .decrypt = crypto_aegis128l_aesni_decrypt, + .init = crypto_aegis128l_aesni_init_tfm, + .exit = crypto_aegis128l_aesni_exit_tfm, + + .ivsize = AEGIS128L_NONCE_SIZE, + .maxauthsize = AEGIS128L_MAX_AUTH_SIZE, + .chunksize = AEGIS128L_BLOCK_SIZE, + + .base = { + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct aegis_ctx) + + __alignof__(struct aegis_ctx), + .cra_alignmask = 0, + + .cra_name = "__aegis128l", + .cra_driver_name = "__aegis128l-aesni", + + .cra_module = THIS_MODULE, + } + }, { + .setkey = cryptd_aegis128l_aesni_setkey, + .setauthsize = cryptd_aegis128l_aesni_setauthsize, + .encrypt = cryptd_aegis128l_aesni_encrypt, + .decrypt = cryptd_aegis128l_aesni_decrypt, + .init = cryptd_aegis128l_aesni_init_tfm, + .exit = cryptd_aegis128l_aesni_exit_tfm, + + .ivsize = AEGIS128L_NONCE_SIZE, + .maxauthsize = AEGIS128L_MAX_AUTH_SIZE, + .chunksize = AEGIS128L_BLOCK_SIZE, + + .base = { + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct cryptd_aead *), + .cra_alignmask = 0, + + .cra_priority = 400, + + .cra_name = "aegis128l", + .cra_driver_name = "aegis128l-aesni", + + .cra_module = THIS_MODULE, + } + } +}; + +static int __init crypto_aegis128l_aesni_module_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_XMM2) || + !boot_cpu_has(X86_FEATURE_AES) || + !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) + return -ENODEV; + + return crypto_register_aeads(crypto_aegis128l_aesni_alg, + ARRAY_SIZE(crypto_aegis128l_aesni_alg)); +} + +static void __exit crypto_aegis128l_aesni_module_exit(void) +{ + crypto_unregister_aeads(crypto_aegis128l_aesni_alg, + ARRAY_SIZE(crypto_aegis128l_aesni_alg)); +} + +module_init(crypto_aegis128l_aesni_module_init); +module_exit(crypto_aegis128l_aesni_module_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); +MODULE_DESCRIPTION("AEGIS-128L AEAD algorithm -- AESNI+SSE2 implementation"); +MODULE_ALIAS_CRYPTO("aegis128l"); +MODULE_ALIAS_CRYPTO("aegis128l-aesni"); diff --git a/arch/x86/crypto/aegis256-aesni-asm.S b/arch/x86/crypto/aegis256-aesni-asm.S new file mode 100644 index 000000000..8870c7c5d --- /dev/null +++ b/arch/x86/crypto/aegis256-aesni-asm.S @@ -0,0 +1,703 @@ +/* + * AES-NI + SSE2 implementation of AEGIS-128L + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> + +#define STATE0 %xmm0 +#define STATE1 %xmm1 +#define STATE2 %xmm2 +#define STATE3 %xmm3 +#define STATE4 %xmm4 +#define STATE5 %xmm5 +#define MSG %xmm6 +#define T0 %xmm7 +#define T1 %xmm8 +#define T2 %xmm9 +#define T3 %xmm10 + +#define STATEP %rdi +#define LEN %rsi +#define SRC %rdx +#define DST %rcx + +.section .rodata.cst16.aegis256_const, "aM", @progbits, 32 +.align 16 +.Laegis256_const_0: + .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d + .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 +.Laegis256_const_1: + .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 + .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd + +.section .rodata.cst16.aegis256_counter, "aM", @progbits, 16 +.align 16 +.Laegis256_counter: + .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 + .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f + +.text + +/* + * __load_partial: internal ABI + * input: + * LEN - bytes + * SRC - src + * output: + * MSG - message block + * changed: + * T0 + * %r8 + * %r9 + */ +__load_partial: + xor %r9d, %r9d + pxor MSG, MSG + + mov LEN, %r8 + and $0x1, %r8 + jz .Lld_partial_1 + + mov LEN, %r8 + and $0x1E, %r8 + add SRC, %r8 + mov (%r8), %r9b + +.Lld_partial_1: + mov LEN, %r8 + and $0x2, %r8 + jz .Lld_partial_2 + + mov LEN, %r8 + and $0x1C, %r8 + add SRC, %r8 + shl $0x10, %r9 + mov (%r8), %r9w + +.Lld_partial_2: + mov LEN, %r8 + and $0x4, %r8 + jz .Lld_partial_4 + + mov LEN, %r8 + and $0x18, %r8 + add SRC, %r8 + shl $32, %r9 + mov (%r8), %r8d + xor %r8, %r9 + +.Lld_partial_4: + movq %r9, MSG + + mov LEN, %r8 + and $0x8, %r8 + jz .Lld_partial_8 + + mov LEN, %r8 + and $0x10, %r8 + add SRC, %r8 + pslldq $8, MSG + movq (%r8), T0 + pxor T0, MSG + +.Lld_partial_8: + ret +ENDPROC(__load_partial) + +/* + * __store_partial: internal ABI + * input: + * LEN - bytes + * DST - dst + * output: + * T0 - message block + * changed: + * %r8 + * %r9 + * %r10 + */ +__store_partial: + mov LEN, %r8 + mov DST, %r9 + + movq T0, %r10 + + cmp $8, %r8 + jl .Lst_partial_8 + + mov %r10, (%r9) + psrldq $8, T0 + movq T0, %r10 + + sub $8, %r8 + add $8, %r9 + +.Lst_partial_8: + cmp $4, %r8 + jl .Lst_partial_4 + + mov %r10d, (%r9) + shr $32, %r10 + + sub $4, %r8 + add $4, %r9 + +.Lst_partial_4: + cmp $2, %r8 + jl .Lst_partial_2 + + mov %r10w, (%r9) + shr $0x10, %r10 + + sub $2, %r8 + add $2, %r9 + +.Lst_partial_2: + cmp $1, %r8 + jl .Lst_partial_1 + + mov %r10b, (%r9) + +.Lst_partial_1: + ret +ENDPROC(__store_partial) + +.macro update + movdqa STATE5, T0 + aesenc STATE0, STATE5 + aesenc STATE1, STATE0 + aesenc STATE2, STATE1 + aesenc STATE3, STATE2 + aesenc STATE4, STATE3 + aesenc T0, STATE4 +.endm + +.macro update0 m + update + pxor \m, STATE5 +.endm + +.macro update1 m + update + pxor \m, STATE4 +.endm + +.macro update2 m + update + pxor \m, STATE3 +.endm + +.macro update3 m + update + pxor \m, STATE2 +.endm + +.macro update4 m + update + pxor \m, STATE1 +.endm + +.macro update5 m + update + pxor \m, STATE0 +.endm + +.macro state_load + movdqu 0x00(STATEP), STATE0 + movdqu 0x10(STATEP), STATE1 + movdqu 0x20(STATEP), STATE2 + movdqu 0x30(STATEP), STATE3 + movdqu 0x40(STATEP), STATE4 + movdqu 0x50(STATEP), STATE5 +.endm + +.macro state_store s0 s1 s2 s3 s4 s5 + movdqu \s5, 0x00(STATEP) + movdqu \s0, 0x10(STATEP) + movdqu \s1, 0x20(STATEP) + movdqu \s2, 0x30(STATEP) + movdqu \s3, 0x40(STATEP) + movdqu \s4, 0x50(STATEP) +.endm + +.macro state_store0 + state_store STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 +.endm + +.macro state_store1 + state_store STATE5 STATE0 STATE1 STATE2 STATE3 STATE4 +.endm + +.macro state_store2 + state_store STATE4 STATE5 STATE0 STATE1 STATE2 STATE3 +.endm + +.macro state_store3 + state_store STATE3 STATE4 STATE5 STATE0 STATE1 STATE2 +.endm + +.macro state_store4 + state_store STATE2 STATE3 STATE4 STATE5 STATE0 STATE1 +.endm + +.macro state_store5 + state_store STATE1 STATE2 STATE3 STATE4 STATE5 STATE0 +.endm + +/* + * void crypto_aegis256_aesni_init(void *state, const void *key, const void *iv); + */ +ENTRY(crypto_aegis256_aesni_init) + FRAME_BEGIN + + /* load key: */ + movdqa 0x00(%rsi), MSG + movdqa 0x10(%rsi), T1 + movdqa MSG, STATE4 + movdqa T1, STATE5 + + /* load IV: */ + movdqu 0x00(%rdx), T2 + movdqu 0x10(%rdx), T3 + pxor MSG, T2 + pxor T1, T3 + movdqa T2, STATE0 + movdqa T3, STATE1 + + /* load the constants: */ + movdqa .Laegis256_const_0, STATE3 + movdqa .Laegis256_const_1, STATE2 + pxor STATE3, STATE4 + pxor STATE2, STATE5 + + /* update 10 times with IV and KEY: */ + update0 MSG + update1 T1 + update2 T2 + update3 T3 + update4 MSG + update5 T1 + update0 T2 + update1 T3 + update2 MSG + update3 T1 + update4 T2 + update5 T3 + update0 MSG + update1 T1 + update2 T2 + update3 T3 + + state_store3 + + FRAME_END + ret +ENDPROC(crypto_aegis256_aesni_init) + +.macro ad_block a i + movdq\a (\i * 0x10)(SRC), MSG + update\i MSG + sub $0x10, LEN + cmp $0x10, LEN + jl .Lad_out_\i +.endm + +/* + * void crypto_aegis256_aesni_ad(void *state, unsigned int length, + * const void *data); + */ +ENTRY(crypto_aegis256_aesni_ad) + FRAME_BEGIN + + cmp $0x10, LEN + jb .Lad_out + + state_load + + mov SRC, %r8 + and $0xf, %r8 + jnz .Lad_u_loop + +.align 8 +.Lad_a_loop: + ad_block a 0 + ad_block a 1 + ad_block a 2 + ad_block a 3 + ad_block a 4 + ad_block a 5 + + add $0x60, SRC + jmp .Lad_a_loop + +.align 8 +.Lad_u_loop: + ad_block u 0 + ad_block u 1 + ad_block u 2 + ad_block u 3 + ad_block u 4 + ad_block u 5 + + add $0x60, SRC + jmp .Lad_u_loop + +.Lad_out_0: + state_store0 + FRAME_END + ret + +.Lad_out_1: + state_store1 + FRAME_END + ret + +.Lad_out_2: + state_store2 + FRAME_END + ret + +.Lad_out_3: + state_store3 + FRAME_END + ret + +.Lad_out_4: + state_store4 + FRAME_END + ret + +.Lad_out_5: + state_store5 + FRAME_END + ret + +.Lad_out: + FRAME_END + ret +ENDPROC(crypto_aegis256_aesni_ad) + +.macro crypt m s0 s1 s2 s3 s4 s5 + pxor \s1, \m + pxor \s4, \m + pxor \s5, \m + movdqa \s2, T3 + pand \s3, T3 + pxor T3, \m +.endm + +.macro crypt0 m + crypt \m STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 +.endm + +.macro crypt1 m + crypt \m STATE5 STATE0 STATE1 STATE2 STATE3 STATE4 +.endm + +.macro crypt2 m + crypt \m STATE4 STATE5 STATE0 STATE1 STATE2 STATE3 +.endm + +.macro crypt3 m + crypt \m STATE3 STATE4 STATE5 STATE0 STATE1 STATE2 +.endm + +.macro crypt4 m + crypt \m STATE2 STATE3 STATE4 STATE5 STATE0 STATE1 +.endm + +.macro crypt5 m + crypt \m STATE1 STATE2 STATE3 STATE4 STATE5 STATE0 +.endm + +.macro encrypt_block a i + movdq\a (\i * 0x10)(SRC), MSG + movdqa MSG, T0 + crypt\i T0 + movdq\a T0, (\i * 0x10)(DST) + + update\i MSG + + sub $0x10, LEN + cmp $0x10, LEN + jl .Lenc_out_\i +.endm + +.macro decrypt_block a i + movdq\a (\i * 0x10)(SRC), MSG + crypt\i MSG + movdq\a MSG, (\i * 0x10)(DST) + + update\i MSG + + sub $0x10, LEN + cmp $0x10, LEN + jl .Ldec_out_\i +.endm + +/* + * void crypto_aegis256_aesni_enc(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis256_aesni_enc) + FRAME_BEGIN + + cmp $0x10, LEN + jb .Lenc_out + + state_load + + mov SRC, %r8 + or DST, %r8 + and $0xf, %r8 + jnz .Lenc_u_loop + +.align 8 +.Lenc_a_loop: + encrypt_block a 0 + encrypt_block a 1 + encrypt_block a 2 + encrypt_block a 3 + encrypt_block a 4 + encrypt_block a 5 + + add $0x60, SRC + add $0x60, DST + jmp .Lenc_a_loop + +.align 8 +.Lenc_u_loop: + encrypt_block u 0 + encrypt_block u 1 + encrypt_block u 2 + encrypt_block u 3 + encrypt_block u 4 + encrypt_block u 5 + + add $0x60, SRC + add $0x60, DST + jmp .Lenc_u_loop + +.Lenc_out_0: + state_store0 + FRAME_END + ret + +.Lenc_out_1: + state_store1 + FRAME_END + ret + +.Lenc_out_2: + state_store2 + FRAME_END + ret + +.Lenc_out_3: + state_store3 + FRAME_END + ret + +.Lenc_out_4: + state_store4 + FRAME_END + ret + +.Lenc_out_5: + state_store5 + FRAME_END + ret + +.Lenc_out: + FRAME_END + ret +ENDPROC(crypto_aegis256_aesni_enc) + +/* + * void crypto_aegis256_aesni_enc_tail(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis256_aesni_enc_tail) + FRAME_BEGIN + + state_load + + /* encrypt message: */ + call __load_partial + + movdqa MSG, T0 + crypt0 T0 + + call __store_partial + + update0 MSG + + state_store0 + + FRAME_END + ret +ENDPROC(crypto_aegis256_aesni_enc_tail) + +/* + * void crypto_aegis256_aesni_dec(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis256_aesni_dec) + FRAME_BEGIN + + cmp $0x10, LEN + jb .Ldec_out + + state_load + + mov SRC, %r8 + or DST, %r8 + and $0xF, %r8 + jnz .Ldec_u_loop + +.align 8 +.Ldec_a_loop: + decrypt_block a 0 + decrypt_block a 1 + decrypt_block a 2 + decrypt_block a 3 + decrypt_block a 4 + decrypt_block a 5 + + add $0x60, SRC + add $0x60, DST + jmp .Ldec_a_loop + +.align 8 +.Ldec_u_loop: + decrypt_block u 0 + decrypt_block u 1 + decrypt_block u 2 + decrypt_block u 3 + decrypt_block u 4 + decrypt_block u 5 + + add $0x60, SRC + add $0x60, DST + jmp .Ldec_u_loop + +.Ldec_out_0: + state_store0 + FRAME_END + ret + +.Ldec_out_1: + state_store1 + FRAME_END + ret + +.Ldec_out_2: + state_store2 + FRAME_END + ret + +.Ldec_out_3: + state_store3 + FRAME_END + ret + +.Ldec_out_4: + state_store4 + FRAME_END + ret + +.Ldec_out_5: + state_store5 + FRAME_END + ret + +.Ldec_out: + FRAME_END + ret +ENDPROC(crypto_aegis256_aesni_dec) + +/* + * void crypto_aegis256_aesni_dec_tail(void *state, unsigned int length, + * const void *src, void *dst); + */ +ENTRY(crypto_aegis256_aesni_dec_tail) + FRAME_BEGIN + + state_load + + /* decrypt message: */ + call __load_partial + + crypt0 MSG + + movdqa MSG, T0 + call __store_partial + + /* mask with byte count: */ + movq LEN, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + movdqa .Laegis256_counter, T1 + pcmpgtb T1, T0 + pand T0, MSG + + update0 MSG + + state_store0 + + FRAME_END + ret +ENDPROC(crypto_aegis256_aesni_dec_tail) + +/* + * void crypto_aegis256_aesni_final(void *state, void *tag_xor, + * u64 assoclen, u64 cryptlen); + */ +ENTRY(crypto_aegis256_aesni_final) + FRAME_BEGIN + + state_load + + /* prepare length block: */ + movq %rdx, MSG + movq %rcx, T0 + pslldq $8, T0 + pxor T0, MSG + psllq $3, MSG /* multiply by 8 (to get bit count) */ + + pxor STATE3, MSG + + /* update state: */ + update0 MSG + update1 MSG + update2 MSG + update3 MSG + update4 MSG + update5 MSG + update0 MSG + + /* xor tag: */ + movdqu (%rsi), MSG + + pxor STATE0, MSG + pxor STATE1, MSG + pxor STATE2, MSG + pxor STATE3, MSG + pxor STATE4, MSG + pxor STATE5, MSG + + movdqu MSG, (%rsi) + + FRAME_END + ret +ENDPROC(crypto_aegis256_aesni_final) diff --git a/arch/x86/crypto/aegis256-aesni-glue.c b/arch/x86/crypto/aegis256-aesni-glue.c new file mode 100644 index 000000000..6227ca322 --- /dev/null +++ b/arch/x86/crypto/aegis256-aesni-glue.c @@ -0,0 +1,394 @@ +/* + * The AEGIS-256 Authenticated-Encryption Algorithm + * Glue for AES-NI + SSE2 implementation + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <crypto/cryptd.h> +#include <crypto/internal/aead.h> +#include <crypto/internal/skcipher.h> +#include <crypto/scatterwalk.h> +#include <linux/module.h> +#include <asm/fpu/api.h> +#include <asm/cpu_device_id.h> + +#define AEGIS256_BLOCK_ALIGN 16 +#define AEGIS256_BLOCK_SIZE 16 +#define AEGIS256_NONCE_SIZE 32 +#define AEGIS256_STATE_BLOCKS 6 +#define AEGIS256_KEY_SIZE 32 +#define AEGIS256_MIN_AUTH_SIZE 8 +#define AEGIS256_MAX_AUTH_SIZE 16 + +asmlinkage void crypto_aegis256_aesni_init(void *state, void *key, void *iv); + +asmlinkage void crypto_aegis256_aesni_ad( + void *state, unsigned int length, const void *data); + +asmlinkage void crypto_aegis256_aesni_enc( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis256_aesni_dec( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis256_aesni_enc_tail( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis256_aesni_dec_tail( + void *state, unsigned int length, const void *src, void *dst); + +asmlinkage void crypto_aegis256_aesni_final( + void *state, void *tag_xor, unsigned int cryptlen, + unsigned int assoclen); + +struct aegis_block { + u8 bytes[AEGIS256_BLOCK_SIZE] __aligned(AEGIS256_BLOCK_ALIGN); +}; + +struct aegis_state { + struct aegis_block blocks[AEGIS256_STATE_BLOCKS]; +}; + +struct aegis_ctx { + struct aegis_block key[AEGIS256_KEY_SIZE / AEGIS256_BLOCK_SIZE]; +}; + +struct aegis_crypt_ops { + int (*skcipher_walk_init)(struct skcipher_walk *walk, + struct aead_request *req, bool atomic); + + void (*crypt_blocks)(void *state, unsigned int length, const void *src, + void *dst); + void (*crypt_tail)(void *state, unsigned int length, const void *src, + void *dst); +}; + +static void crypto_aegis256_aesni_process_ad( + struct aegis_state *state, struct scatterlist *sg_src, + unsigned int assoclen) +{ + struct scatter_walk walk; + struct aegis_block buf; + unsigned int pos = 0; + + scatterwalk_start(&walk, sg_src); + while (assoclen != 0) { + unsigned int size = scatterwalk_clamp(&walk, assoclen); + unsigned int left = size; + void *mapped = scatterwalk_map(&walk); + const u8 *src = (const u8 *)mapped; + + if (pos + size >= AEGIS256_BLOCK_SIZE) { + if (pos > 0) { + unsigned int fill = AEGIS256_BLOCK_SIZE - pos; + memcpy(buf.bytes + pos, src, fill); + crypto_aegis256_aesni_ad(state, + AEGIS256_BLOCK_SIZE, + buf.bytes); + pos = 0; + left -= fill; + src += fill; + } + + crypto_aegis256_aesni_ad(state, left, src); + + src += left & ~(AEGIS256_BLOCK_SIZE - 1); + left &= AEGIS256_BLOCK_SIZE - 1; + } + + memcpy(buf.bytes + pos, src, left); + pos += left; + assoclen -= size; + + scatterwalk_unmap(mapped); + scatterwalk_advance(&walk, size); + scatterwalk_done(&walk, 0, assoclen); + } + + if (pos > 0) { + memset(buf.bytes + pos, 0, AEGIS256_BLOCK_SIZE - pos); + crypto_aegis256_aesni_ad(state, AEGIS256_BLOCK_SIZE, buf.bytes); + } +} + +static void crypto_aegis256_aesni_process_crypt( + struct aegis_state *state, struct skcipher_walk *walk, + const struct aegis_crypt_ops *ops) +{ + while (walk->nbytes >= AEGIS256_BLOCK_SIZE) { + ops->crypt_blocks(state, + round_down(walk->nbytes, AEGIS256_BLOCK_SIZE), + walk->src.virt.addr, walk->dst.virt.addr); + skcipher_walk_done(walk, walk->nbytes % AEGIS256_BLOCK_SIZE); + } + + if (walk->nbytes) { + ops->crypt_tail(state, walk->nbytes, walk->src.virt.addr, + walk->dst.virt.addr); + skcipher_walk_done(walk, 0); + } +} + +static struct aegis_ctx *crypto_aegis256_aesni_ctx(struct crypto_aead *aead) +{ + u8 *ctx = crypto_aead_ctx(aead); + ctx = PTR_ALIGN(ctx, __alignof__(struct aegis_ctx)); + return (void *)ctx; +} + +static int crypto_aegis256_aesni_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct aegis_ctx *ctx = crypto_aegis256_aesni_ctx(aead); + + if (keylen != AEGIS256_KEY_SIZE) { + crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + + memcpy(ctx->key, key, AEGIS256_KEY_SIZE); + + return 0; +} + +static int crypto_aegis256_aesni_setauthsize(struct crypto_aead *tfm, + unsigned int authsize) +{ + if (authsize > AEGIS256_MAX_AUTH_SIZE) + return -EINVAL; + if (authsize < AEGIS256_MIN_AUTH_SIZE) + return -EINVAL; + return 0; +} + +static void crypto_aegis256_aesni_crypt(struct aead_request *req, + struct aegis_block *tag_xor, + unsigned int cryptlen, + const struct aegis_crypt_ops *ops) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_ctx *ctx = crypto_aegis256_aesni_ctx(tfm); + struct skcipher_walk walk; + struct aegis_state state; + + ops->skcipher_walk_init(&walk, req, true); + + kernel_fpu_begin(); + + crypto_aegis256_aesni_init(&state, ctx->key, req->iv); + crypto_aegis256_aesni_process_ad(&state, req->src, req->assoclen); + crypto_aegis256_aesni_process_crypt(&state, &walk, ops); + crypto_aegis256_aesni_final(&state, tag_xor, req->assoclen, cryptlen); + + kernel_fpu_end(); +} + +static int crypto_aegis256_aesni_encrypt(struct aead_request *req) +{ + static const struct aegis_crypt_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_encrypt, + .crypt_blocks = crypto_aegis256_aesni_enc, + .crypt_tail = crypto_aegis256_aesni_enc_tail, + }; + + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_block tag = {}; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen; + + crypto_aegis256_aesni_crypt(req, &tag, cryptlen, &OPS); + + scatterwalk_map_and_copy(tag.bytes, req->dst, + req->assoclen + cryptlen, authsize, 1); + return 0; +} + +static int crypto_aegis256_aesni_decrypt(struct aead_request *req) +{ + static const struct aegis_block zeros = {}; + + static const struct aegis_crypt_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_decrypt, + .crypt_blocks = crypto_aegis256_aesni_dec, + .crypt_tail = crypto_aegis256_aesni_dec_tail, + }; + + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aegis_block tag; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen - authsize; + + scatterwalk_map_and_copy(tag.bytes, req->src, + req->assoclen + cryptlen, authsize, 0); + + crypto_aegis256_aesni_crypt(req, &tag, cryptlen, &OPS); + + return crypto_memneq(tag.bytes, zeros.bytes, authsize) ? -EBADMSG : 0; +} + +static int crypto_aegis256_aesni_init_tfm(struct crypto_aead *aead) +{ + return 0; +} + +static void crypto_aegis256_aesni_exit_tfm(struct crypto_aead *aead) +{ +} + +static int cryptd_aegis256_aesni_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setkey(&cryptd_tfm->base, key, keylen); +} + +static int cryptd_aegis256_aesni_setauthsize(struct crypto_aead *aead, + unsigned int authsize) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setauthsize(&cryptd_tfm->base, authsize); +} + +static int cryptd_aegis256_aesni_encrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_encrypt(req); +} + +static int cryptd_aegis256_aesni_decrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_decrypt(req); +} + +static int cryptd_aegis256_aesni_init_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead *cryptd_tfm; + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_tfm = cryptd_alloc_aead("__aegis256-aesni", CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(cryptd_tfm)) + return PTR_ERR(cryptd_tfm); + + *ctx = cryptd_tfm; + crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); + return 0; +} + +static void cryptd_aegis256_aesni_exit_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_free_aead(*ctx); +} + +static struct aead_alg crypto_aegis256_aesni_alg[] = { + { + .setkey = crypto_aegis256_aesni_setkey, + .setauthsize = crypto_aegis256_aesni_setauthsize, + .encrypt = crypto_aegis256_aesni_encrypt, + .decrypt = crypto_aegis256_aesni_decrypt, + .init = crypto_aegis256_aesni_init_tfm, + .exit = crypto_aegis256_aesni_exit_tfm, + + .ivsize = AEGIS256_NONCE_SIZE, + .maxauthsize = AEGIS256_MAX_AUTH_SIZE, + .chunksize = AEGIS256_BLOCK_SIZE, + + .base = { + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct aegis_ctx) + + __alignof__(struct aegis_ctx), + .cra_alignmask = 0, + + .cra_name = "__aegis256", + .cra_driver_name = "__aegis256-aesni", + + .cra_module = THIS_MODULE, + } + }, { + .setkey = cryptd_aegis256_aesni_setkey, + .setauthsize = cryptd_aegis256_aesni_setauthsize, + .encrypt = cryptd_aegis256_aesni_encrypt, + .decrypt = cryptd_aegis256_aesni_decrypt, + .init = cryptd_aegis256_aesni_init_tfm, + .exit = cryptd_aegis256_aesni_exit_tfm, + + .ivsize = AEGIS256_NONCE_SIZE, + .maxauthsize = AEGIS256_MAX_AUTH_SIZE, + .chunksize = AEGIS256_BLOCK_SIZE, + + .base = { + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct cryptd_aead *), + .cra_alignmask = 0, + + .cra_priority = 400, + + .cra_name = "aegis256", + .cra_driver_name = "aegis256-aesni", + + .cra_module = THIS_MODULE, + } + } +}; + +static int __init crypto_aegis256_aesni_module_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_XMM2) || + !boot_cpu_has(X86_FEATURE_AES) || + !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) + return -ENODEV; + + return crypto_register_aeads(crypto_aegis256_aesni_alg, + ARRAY_SIZE(crypto_aegis256_aesni_alg)); +} + +static void __exit crypto_aegis256_aesni_module_exit(void) +{ + crypto_unregister_aeads(crypto_aegis256_aesni_alg, + ARRAY_SIZE(crypto_aegis256_aesni_alg)); +} + +module_init(crypto_aegis256_aesni_module_init); +module_exit(crypto_aegis256_aesni_module_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); +MODULE_DESCRIPTION("AEGIS-256 AEAD algorithm -- AESNI+SSE2 implementation"); +MODULE_ALIAS_CRYPTO("aegis256"); +MODULE_ALIAS_CRYPTO("aegis256-aesni"); diff --git a/arch/x86/crypto/aes-i586-asm_32.S b/arch/x86/crypto/aes-i586-asm_32.S new file mode 100644 index 000000000..2849dbc59 --- /dev/null +++ b/arch/x86/crypto/aes-i586-asm_32.S @@ -0,0 +1,362 @@ +// ------------------------------------------------------------------------- +// Copyright (c) 2001, Dr Brian Gladman < >, Worcester, UK. +// All rights reserved. +// +// LICENSE TERMS +// +// The free distribution and use of this software in both source and binary +// form is allowed (with or without changes) provided that: +// +// 1. distributions of this source code include the above copyright +// notice, this list of conditions and the following disclaimer// +// +// 2. distributions in binary form include the above copyright +// notice, this list of conditions and the following disclaimer +// in the documentation and/or other associated materials// +// +// 3. the copyright holder's name is not used to endorse products +// built using this software without specific written permission. +// +// +// ALTERNATIVELY, provided that this notice is retained in full, this product +// may be distributed under the terms of the GNU General Public License (GPL), +// in which case the provisions of the GPL apply INSTEAD OF those given above. +// +// Copyright (c) 2004 Linus Torvalds <torvalds@osdl.org> +// Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com> + +// DISCLAIMER +// +// This software is provided 'as is' with no explicit or implied warranties +// in respect of its properties including, but not limited to, correctness +// and fitness for purpose. +// ------------------------------------------------------------------------- +// Issue Date: 29/07/2002 + +.file "aes-i586-asm.S" +.text + +#include <linux/linkage.h> +#include <asm/asm-offsets.h> + +#define tlen 1024 // length of each of 4 'xor' arrays (256 32-bit words) + +/* offsets to parameters with one register pushed onto stack */ +#define ctx 8 +#define out_blk 12 +#define in_blk 16 + +/* offsets in crypto_aes_ctx structure */ +#define klen (480) +#define ekey (0) +#define dkey (240) + +// register mapping for encrypt and decrypt subroutines + +#define r0 eax +#define r1 ebx +#define r2 ecx +#define r3 edx +#define r4 esi +#define r5 edi + +#define eaxl al +#define eaxh ah +#define ebxl bl +#define ebxh bh +#define ecxl cl +#define ecxh ch +#define edxl dl +#define edxh dh + +#define _h(reg) reg##h +#define h(reg) _h(reg) + +#define _l(reg) reg##l +#define l(reg) _l(reg) + +// This macro takes a 32-bit word representing a column and uses +// each of its four bytes to index into four tables of 256 32-bit +// words to obtain values that are then xored into the appropriate +// output registers r0, r1, r4 or r5. + +// Parameters: +// table table base address +// %1 out_state[0] +// %2 out_state[1] +// %3 out_state[2] +// %4 out_state[3] +// idx input register for the round (destroyed) +// tmp scratch register for the round +// sched key schedule + +#define do_col(table, a1,a2,a3,a4, idx, tmp) \ + movzx %l(idx),%tmp; \ + xor table(,%tmp,4),%a1; \ + movzx %h(idx),%tmp; \ + shr $16,%idx; \ + xor table+tlen(,%tmp,4),%a2; \ + movzx %l(idx),%tmp; \ + movzx %h(idx),%idx; \ + xor table+2*tlen(,%tmp,4),%a3; \ + xor table+3*tlen(,%idx,4),%a4; + +// initialise output registers from the key schedule +// NB1: original value of a3 is in idx on exit +// NB2: original values of a1,a2,a4 aren't used +#define do_fcol(table, a1,a2,a3,a4, idx, tmp, sched) \ + mov 0 sched,%a1; \ + movzx %l(idx),%tmp; \ + mov 12 sched,%a2; \ + xor table(,%tmp,4),%a1; \ + mov 4 sched,%a4; \ + movzx %h(idx),%tmp; \ + shr $16,%idx; \ + xor table+tlen(,%tmp,4),%a2; \ + movzx %l(idx),%tmp; \ + movzx %h(idx),%idx; \ + xor table+3*tlen(,%idx,4),%a4; \ + mov %a3,%idx; \ + mov 8 sched,%a3; \ + xor table+2*tlen(,%tmp,4),%a3; + +// initialise output registers from the key schedule +// NB1: original value of a3 is in idx on exit +// NB2: original values of a1,a2,a4 aren't used +#define do_icol(table, a1,a2,a3,a4, idx, tmp, sched) \ + mov 0 sched,%a1; \ + movzx %l(idx),%tmp; \ + mov 4 sched,%a2; \ + xor table(,%tmp,4),%a1; \ + mov 12 sched,%a4; \ + movzx %h(idx),%tmp; \ + shr $16,%idx; \ + xor table+tlen(,%tmp,4),%a2; \ + movzx %l(idx),%tmp; \ + movzx %h(idx),%idx; \ + xor table+3*tlen(,%idx,4),%a4; \ + mov %a3,%idx; \ + mov 8 sched,%a3; \ + xor table+2*tlen(,%tmp,4),%a3; + + +// original Gladman had conditional saves to MMX regs. +#define save(a1, a2) \ + mov %a2,4*a1(%esp) + +#define restore(a1, a2) \ + mov 4*a2(%esp),%a1 + +// These macros perform a forward encryption cycle. They are entered with +// the first previous round column values in r0,r1,r4,r5 and +// exit with the final values in the same registers, using stack +// for temporary storage. + +// round column values +// on entry: r0,r1,r4,r5 +// on exit: r2,r1,r4,r5 +#define fwd_rnd1(arg, table) \ + save (0,r1); \ + save (1,r5); \ + \ + /* compute new column values */ \ + do_fcol(table, r2,r5,r4,r1, r0,r3, arg); /* idx=r0 */ \ + do_col (table, r4,r1,r2,r5, r0,r3); /* idx=r4 */ \ + restore(r0,0); \ + do_col (table, r1,r2,r5,r4, r0,r3); /* idx=r1 */ \ + restore(r0,1); \ + do_col (table, r5,r4,r1,r2, r0,r3); /* idx=r5 */ + +// round column values +// on entry: r2,r1,r4,r5 +// on exit: r0,r1,r4,r5 +#define fwd_rnd2(arg, table) \ + save (0,r1); \ + save (1,r5); \ + \ + /* compute new column values */ \ + do_fcol(table, r0,r5,r4,r1, r2,r3, arg); /* idx=r2 */ \ + do_col (table, r4,r1,r0,r5, r2,r3); /* idx=r4 */ \ + restore(r2,0); \ + do_col (table, r1,r0,r5,r4, r2,r3); /* idx=r1 */ \ + restore(r2,1); \ + do_col (table, r5,r4,r1,r0, r2,r3); /* idx=r5 */ + +// These macros performs an inverse encryption cycle. They are entered with +// the first previous round column values in r0,r1,r4,r5 and +// exit with the final values in the same registers, using stack +// for temporary storage + +// round column values +// on entry: r0,r1,r4,r5 +// on exit: r2,r1,r4,r5 +#define inv_rnd1(arg, table) \ + save (0,r1); \ + save (1,r5); \ + \ + /* compute new column values */ \ + do_icol(table, r2,r1,r4,r5, r0,r3, arg); /* idx=r0 */ \ + do_col (table, r4,r5,r2,r1, r0,r3); /* idx=r4 */ \ + restore(r0,0); \ + do_col (table, r1,r4,r5,r2, r0,r3); /* idx=r1 */ \ + restore(r0,1); \ + do_col (table, r5,r2,r1,r4, r0,r3); /* idx=r5 */ + +// round column values +// on entry: r2,r1,r4,r5 +// on exit: r0,r1,r4,r5 +#define inv_rnd2(arg, table) \ + save (0,r1); \ + save (1,r5); \ + \ + /* compute new column values */ \ + do_icol(table, r0,r1,r4,r5, r2,r3, arg); /* idx=r2 */ \ + do_col (table, r4,r5,r0,r1, r2,r3); /* idx=r4 */ \ + restore(r2,0); \ + do_col (table, r1,r4,r5,r0, r2,r3); /* idx=r1 */ \ + restore(r2,1); \ + do_col (table, r5,r0,r1,r4, r2,r3); /* idx=r5 */ + +// AES (Rijndael) Encryption Subroutine +/* void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out_blk, const u8 *in_blk) */ + +.extern crypto_ft_tab +.extern crypto_fl_tab + +ENTRY(aes_enc_blk) + push %ebp + mov ctx(%esp),%ebp + +// CAUTION: the order and the values used in these assigns +// rely on the register mappings + +1: push %ebx + mov in_blk+4(%esp),%r2 + push %esi + mov klen(%ebp),%r3 // key size + push %edi +#if ekey != 0 + lea ekey(%ebp),%ebp // key pointer +#endif + +// input four columns and xor in first round key + + mov (%r2),%r0 + mov 4(%r2),%r1 + mov 8(%r2),%r4 + mov 12(%r2),%r5 + xor (%ebp),%r0 + xor 4(%ebp),%r1 + xor 8(%ebp),%r4 + xor 12(%ebp),%r5 + + sub $8,%esp // space for register saves on stack + add $16,%ebp // increment to next round key + cmp $24,%r3 + jb 4f // 10 rounds for 128-bit key + lea 32(%ebp),%ebp + je 3f // 12 rounds for 192-bit key + lea 32(%ebp),%ebp + +2: fwd_rnd1( -64(%ebp), crypto_ft_tab) // 14 rounds for 256-bit key + fwd_rnd2( -48(%ebp), crypto_ft_tab) +3: fwd_rnd1( -32(%ebp), crypto_ft_tab) // 12 rounds for 192-bit key + fwd_rnd2( -16(%ebp), crypto_ft_tab) +4: fwd_rnd1( (%ebp), crypto_ft_tab) // 10 rounds for 128-bit key + fwd_rnd2( +16(%ebp), crypto_ft_tab) + fwd_rnd1( +32(%ebp), crypto_ft_tab) + fwd_rnd2( +48(%ebp), crypto_ft_tab) + fwd_rnd1( +64(%ebp), crypto_ft_tab) + fwd_rnd2( +80(%ebp), crypto_ft_tab) + fwd_rnd1( +96(%ebp), crypto_ft_tab) + fwd_rnd2(+112(%ebp), crypto_ft_tab) + fwd_rnd1(+128(%ebp), crypto_ft_tab) + fwd_rnd2(+144(%ebp), crypto_fl_tab) // last round uses a different table + +// move final values to the output array. CAUTION: the +// order of these assigns rely on the register mappings + + add $8,%esp + mov out_blk+12(%esp),%ebp + mov %r5,12(%ebp) + pop %edi + mov %r4,8(%ebp) + pop %esi + mov %r1,4(%ebp) + pop %ebx + mov %r0,(%ebp) + pop %ebp + ret +ENDPROC(aes_enc_blk) + +// AES (Rijndael) Decryption Subroutine +/* void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out_blk, const u8 *in_blk) */ + +.extern crypto_it_tab +.extern crypto_il_tab + +ENTRY(aes_dec_blk) + push %ebp + mov ctx(%esp),%ebp + +// CAUTION: the order and the values used in these assigns +// rely on the register mappings + +1: push %ebx + mov in_blk+4(%esp),%r2 + push %esi + mov klen(%ebp),%r3 // key size + push %edi +#if dkey != 0 + lea dkey(%ebp),%ebp // key pointer +#endif + +// input four columns and xor in first round key + + mov (%r2),%r0 + mov 4(%r2),%r1 + mov 8(%r2),%r4 + mov 12(%r2),%r5 + xor (%ebp),%r0 + xor 4(%ebp),%r1 + xor 8(%ebp),%r4 + xor 12(%ebp),%r5 + + sub $8,%esp // space for register saves on stack + add $16,%ebp // increment to next round key + cmp $24,%r3 + jb 4f // 10 rounds for 128-bit key + lea 32(%ebp),%ebp + je 3f // 12 rounds for 192-bit key + lea 32(%ebp),%ebp + +2: inv_rnd1( -64(%ebp), crypto_it_tab) // 14 rounds for 256-bit key + inv_rnd2( -48(%ebp), crypto_it_tab) +3: inv_rnd1( -32(%ebp), crypto_it_tab) // 12 rounds for 192-bit key + inv_rnd2( -16(%ebp), crypto_it_tab) +4: inv_rnd1( (%ebp), crypto_it_tab) // 10 rounds for 128-bit key + inv_rnd2( +16(%ebp), crypto_it_tab) + inv_rnd1( +32(%ebp), crypto_it_tab) + inv_rnd2( +48(%ebp), crypto_it_tab) + inv_rnd1( +64(%ebp), crypto_it_tab) + inv_rnd2( +80(%ebp), crypto_it_tab) + inv_rnd1( +96(%ebp), crypto_it_tab) + inv_rnd2(+112(%ebp), crypto_it_tab) + inv_rnd1(+128(%ebp), crypto_it_tab) + inv_rnd2(+144(%ebp), crypto_il_tab) // last round uses a different table + +// move final values to the output array. CAUTION: the +// order of these assigns rely on the register mappings + + add $8,%esp + mov out_blk+12(%esp),%ebp + mov %r5,12(%ebp) + pop %edi + mov %r4,8(%ebp) + pop %esi + mov %r1,4(%ebp) + pop %ebx + mov %r0,(%ebp) + pop %ebp + ret +ENDPROC(aes_dec_blk) diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S new file mode 100644 index 000000000..8739cf779 --- /dev/null +++ b/arch/x86/crypto/aes-x86_64-asm_64.S @@ -0,0 +1,185 @@ +/* AES (Rijndael) implementation (FIPS PUB 197) for x86_64 + * + * Copyright (C) 2005 Andreas Steinmetz, <ast@domdv.de> + * + * License: + * This code can be distributed under the terms of the GNU General Public + * License (GPL) Version 2 provided that the above header down to and + * including this sentence is retained in full. + */ + +.extern crypto_ft_tab +.extern crypto_it_tab +.extern crypto_fl_tab +.extern crypto_il_tab + +.text + +#include <linux/linkage.h> +#include <asm/asm-offsets.h> + +#define R1 %rax +#define R1E %eax +#define R1X %ax +#define R1H %ah +#define R1L %al +#define R2 %rbx +#define R2E %ebx +#define R2X %bx +#define R2H %bh +#define R2L %bl +#define R3 %rcx +#define R3E %ecx +#define R3X %cx +#define R3H %ch +#define R3L %cl +#define R4 %rdx +#define R4E %edx +#define R4X %dx +#define R4H %dh +#define R4L %dl +#define R5 %rsi +#define R5E %esi +#define R6 %rdi +#define R6E %edi +#define R7 %r9 /* don't use %rbp; it breaks stack traces */ +#define R7E %r9d +#define R8 %r8 +#define R10 %r10 +#define R11 %r11 + +#define prologue(FUNC,KEY,B128,B192,r1,r2,r5,r6,r7,r8,r9,r10,r11) \ + ENTRY(FUNC); \ + movq r1,r2; \ + leaq KEY+48(r8),r9; \ + movq r10,r11; \ + movl (r7),r5 ## E; \ + movl 4(r7),r1 ## E; \ + movl 8(r7),r6 ## E; \ + movl 12(r7),r7 ## E; \ + movl 480(r8),r10 ## E; \ + xorl -48(r9),r5 ## E; \ + xorl -44(r9),r1 ## E; \ + xorl -40(r9),r6 ## E; \ + xorl -36(r9),r7 ## E; \ + cmpl $24,r10 ## E; \ + jb B128; \ + leaq 32(r9),r9; \ + je B192; \ + leaq 32(r9),r9; + +#define epilogue(FUNC,r1,r2,r5,r6,r7,r8,r9) \ + movq r1,r2; \ + movl r5 ## E,(r9); \ + movl r6 ## E,4(r9); \ + movl r7 ## E,8(r9); \ + movl r8 ## E,12(r9); \ + ret; \ + ENDPROC(FUNC); + +#define round(TAB,OFFSET,r1,r2,r3,r4,r5,r6,r7,r8,ra,rb,rc,rd) \ + movzbl r2 ## H,r5 ## E; \ + movzbl r2 ## L,r6 ## E; \ + movl TAB+1024(,r5,4),r5 ## E;\ + movw r4 ## X,r2 ## X; \ + movl TAB(,r6,4),r6 ## E; \ + roll $16,r2 ## E; \ + shrl $16,r4 ## E; \ + movzbl r4 ## L,r7 ## E; \ + movzbl r4 ## H,r4 ## E; \ + xorl OFFSET(r8),ra ## E; \ + xorl OFFSET+4(r8),rb ## E; \ + xorl TAB+3072(,r4,4),r5 ## E;\ + xorl TAB+2048(,r7,4),r6 ## E;\ + movzbl r1 ## L,r7 ## E; \ + movzbl r1 ## H,r4 ## E; \ + movl TAB+1024(,r4,4),r4 ## E;\ + movw r3 ## X,r1 ## X; \ + roll $16,r1 ## E; \ + shrl $16,r3 ## E; \ + xorl TAB(,r7,4),r5 ## E; \ + movzbl r3 ## L,r7 ## E; \ + movzbl r3 ## H,r3 ## E; \ + xorl TAB+3072(,r3,4),r4 ## E;\ + xorl TAB+2048(,r7,4),r5 ## E;\ + movzbl r1 ## L,r7 ## E; \ + movzbl r1 ## H,r3 ## E; \ + shrl $16,r1 ## E; \ + xorl TAB+3072(,r3,4),r6 ## E;\ + movl TAB+2048(,r7,4),r3 ## E;\ + movzbl r1 ## L,r7 ## E; \ + movzbl r1 ## H,r1 ## E; \ + xorl TAB+1024(,r1,4),r6 ## E;\ + xorl TAB(,r7,4),r3 ## E; \ + movzbl r2 ## H,r1 ## E; \ + movzbl r2 ## L,r7 ## E; \ + shrl $16,r2 ## E; \ + xorl TAB+3072(,r1,4),r3 ## E;\ + xorl TAB+2048(,r7,4),r4 ## E;\ + movzbl r2 ## H,r1 ## E; \ + movzbl r2 ## L,r2 ## E; \ + xorl OFFSET+8(r8),rc ## E; \ + xorl OFFSET+12(r8),rd ## E; \ + xorl TAB+1024(,r1,4),r3 ## E;\ + xorl TAB(,r2,4),r4 ## E; + +#define move_regs(r1,r2,r3,r4) \ + movl r3 ## E,r1 ## E; \ + movl r4 ## E,r2 ## E; + +#define entry(FUNC,KEY,B128,B192) \ + prologue(FUNC,KEY,B128,B192,R2,R8,R1,R3,R4,R6,R10,R5,R11) + +#define return(FUNC) epilogue(FUNC,R8,R2,R5,R6,R3,R4,R11) + +#define encrypt_round(TAB,OFFSET) \ + round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4) \ + move_regs(R1,R2,R5,R6) + +#define encrypt_final(TAB,OFFSET) \ + round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4) + +#define decrypt_round(TAB,OFFSET) \ + round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4) \ + move_regs(R1,R2,R5,R6) + +#define decrypt_final(TAB,OFFSET) \ + round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4) + +/* void aes_enc_blk(stuct crypto_tfm *tfm, u8 *out, const u8 *in) */ + + entry(aes_enc_blk,0,.Le128,.Le192) + encrypt_round(crypto_ft_tab,-96) + encrypt_round(crypto_ft_tab,-80) +.Le192: encrypt_round(crypto_ft_tab,-64) + encrypt_round(crypto_ft_tab,-48) +.Le128: encrypt_round(crypto_ft_tab,-32) + encrypt_round(crypto_ft_tab,-16) + encrypt_round(crypto_ft_tab, 0) + encrypt_round(crypto_ft_tab, 16) + encrypt_round(crypto_ft_tab, 32) + encrypt_round(crypto_ft_tab, 48) + encrypt_round(crypto_ft_tab, 64) + encrypt_round(crypto_ft_tab, 80) + encrypt_round(crypto_ft_tab, 96) + encrypt_final(crypto_fl_tab,112) + return(aes_enc_blk) + +/* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in) */ + + entry(aes_dec_blk,240,.Ld128,.Ld192) + decrypt_round(crypto_it_tab,-96) + decrypt_round(crypto_it_tab,-80) +.Ld192: decrypt_round(crypto_it_tab,-64) + decrypt_round(crypto_it_tab,-48) +.Ld128: decrypt_round(crypto_it_tab,-32) + decrypt_round(crypto_it_tab,-16) + decrypt_round(crypto_it_tab, 0) + decrypt_round(crypto_it_tab, 16) + decrypt_round(crypto_it_tab, 32) + decrypt_round(crypto_it_tab, 48) + decrypt_round(crypto_it_tab, 64) + decrypt_round(crypto_it_tab, 80) + decrypt_round(crypto_it_tab, 96) + decrypt_final(crypto_il_tab,112) + return(aes_dec_blk) diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S new file mode 100644 index 000000000..77043a82d --- /dev/null +++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S @@ -0,0 +1,569 @@ +/* + * Implement AES CTR mode by8 optimization with AVX instructions. (x86_64) + * + * This is AES128/192/256 CTR mode optimization implementation. It requires + * the support of Intel(R) AESNI and AVX instructions. + * + * This work was inspired by the AES CTR mode optimization published + * in Intel Optimized IPSEC Cryptograhpic library. + * Additional information on it can be found at: + * http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=22972 + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * James Guilford <james.guilford@intel.com> + * Sean Gulley <sean.m.gulley@intel.com> + * Chandramouli Narayanan <mouli@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <linux/linkage.h> +#include <asm/inst.h> + +#define VMOVDQ vmovdqu + +#define xdata0 %xmm0 +#define xdata1 %xmm1 +#define xdata2 %xmm2 +#define xdata3 %xmm3 +#define xdata4 %xmm4 +#define xdata5 %xmm5 +#define xdata6 %xmm6 +#define xdata7 %xmm7 +#define xcounter %xmm8 +#define xbyteswap %xmm9 +#define xkey0 %xmm10 +#define xkey4 %xmm11 +#define xkey8 %xmm12 +#define xkey12 %xmm13 +#define xkeyA %xmm14 +#define xkeyB %xmm15 + +#define p_in %rdi +#define p_iv %rsi +#define p_keys %rdx +#define p_out %rcx +#define num_bytes %r8 + +#define tmp %r10 +#define DDQ_DATA 0 +#define XDATA 1 +#define KEY_128 1 +#define KEY_192 2 +#define KEY_256 3 + +.section .rodata +.align 16 + +byteswap_const: + .octa 0x000102030405060708090A0B0C0D0E0F +ddq_low_msk: + .octa 0x0000000000000000FFFFFFFFFFFFFFFF +ddq_high_add_1: + .octa 0x00000000000000010000000000000000 +ddq_add_1: + .octa 0x00000000000000000000000000000001 +ddq_add_2: + .octa 0x00000000000000000000000000000002 +ddq_add_3: + .octa 0x00000000000000000000000000000003 +ddq_add_4: + .octa 0x00000000000000000000000000000004 +ddq_add_5: + .octa 0x00000000000000000000000000000005 +ddq_add_6: + .octa 0x00000000000000000000000000000006 +ddq_add_7: + .octa 0x00000000000000000000000000000007 +ddq_add_8: + .octa 0x00000000000000000000000000000008 + +.text + +/* generate a unique variable for ddq_add_x */ + +/* generate a unique variable for xmm register */ +.macro setxdata n + var_xdata = %xmm\n +.endm + +/* club the numeric 'id' to the symbol 'name' */ + +.macro club name, id +.altmacro + .if \name == XDATA + setxdata %\id + .endif +.noaltmacro +.endm + +/* + * do_aes num_in_par load_keys key_len + * This increments p_in, but not p_out + */ +.macro do_aes b, k, key_len + .set by, \b + .set load_keys, \k + .set klen, \key_len + + .if (load_keys) + vmovdqa 0*16(p_keys), xkey0 + .endif + + vpshufb xbyteswap, xcounter, xdata0 + + .set i, 1 + .rept (by - 1) + club XDATA, i + vpaddq (ddq_add_1 + 16 * (i - 1))(%rip), xcounter, var_xdata + vptest ddq_low_msk(%rip), var_xdata + jnz 1f + vpaddq ddq_high_add_1(%rip), var_xdata, var_xdata + vpaddq ddq_high_add_1(%rip), xcounter, xcounter + 1: + vpshufb xbyteswap, var_xdata, var_xdata + .set i, (i +1) + .endr + + vmovdqa 1*16(p_keys), xkeyA + + vpxor xkey0, xdata0, xdata0 + vpaddq (ddq_add_1 + 16 * (by - 1))(%rip), xcounter, xcounter + vptest ddq_low_msk(%rip), xcounter + jnz 1f + vpaddq ddq_high_add_1(%rip), xcounter, xcounter + 1: + + .set i, 1 + .rept (by - 1) + club XDATA, i + vpxor xkey0, var_xdata, var_xdata + .set i, (i +1) + .endr + + vmovdqa 2*16(p_keys), xkeyB + + .set i, 0 + .rept by + club XDATA, i + vaesenc xkeyA, var_xdata, var_xdata /* key 1 */ + .set i, (i +1) + .endr + + .if (klen == KEY_128) + .if (load_keys) + vmovdqa 3*16(p_keys), xkey4 + .endif + .else + vmovdqa 3*16(p_keys), xkeyA + .endif + + .set i, 0 + .rept by + club XDATA, i + vaesenc xkeyB, var_xdata, var_xdata /* key 2 */ + .set i, (i +1) + .endr + + add $(16*by), p_in + + .if (klen == KEY_128) + vmovdqa 4*16(p_keys), xkeyB + .else + .if (load_keys) + vmovdqa 4*16(p_keys), xkey4 + .endif + .endif + + .set i, 0 + .rept by + club XDATA, i + /* key 3 */ + .if (klen == KEY_128) + vaesenc xkey4, var_xdata, var_xdata + .else + vaesenc xkeyA, var_xdata, var_xdata + .endif + .set i, (i +1) + .endr + + vmovdqa 5*16(p_keys), xkeyA + + .set i, 0 + .rept by + club XDATA, i + /* key 4 */ + .if (klen == KEY_128) + vaesenc xkeyB, var_xdata, var_xdata + .else + vaesenc xkey4, var_xdata, var_xdata + .endif + .set i, (i +1) + .endr + + .if (klen == KEY_128) + .if (load_keys) + vmovdqa 6*16(p_keys), xkey8 + .endif + .else + vmovdqa 6*16(p_keys), xkeyB + .endif + + .set i, 0 + .rept by + club XDATA, i + vaesenc xkeyA, var_xdata, var_xdata /* key 5 */ + .set i, (i +1) + .endr + + vmovdqa 7*16(p_keys), xkeyA + + .set i, 0 + .rept by + club XDATA, i + /* key 6 */ + .if (klen == KEY_128) + vaesenc xkey8, var_xdata, var_xdata + .else + vaesenc xkeyB, var_xdata, var_xdata + .endif + .set i, (i +1) + .endr + + .if (klen == KEY_128) + vmovdqa 8*16(p_keys), xkeyB + .else + .if (load_keys) + vmovdqa 8*16(p_keys), xkey8 + .endif + .endif + + .set i, 0 + .rept by + club XDATA, i + vaesenc xkeyA, var_xdata, var_xdata /* key 7 */ + .set i, (i +1) + .endr + + .if (klen == KEY_128) + .if (load_keys) + vmovdqa 9*16(p_keys), xkey12 + .endif + .else + vmovdqa 9*16(p_keys), xkeyA + .endif + + .set i, 0 + .rept by + club XDATA, i + /* key 8 */ + .if (klen == KEY_128) + vaesenc xkeyB, var_xdata, var_xdata + .else + vaesenc xkey8, var_xdata, var_xdata + .endif + .set i, (i +1) + .endr + + vmovdqa 10*16(p_keys), xkeyB + + .set i, 0 + .rept by + club XDATA, i + /* key 9 */ + .if (klen == KEY_128) + vaesenc xkey12, var_xdata, var_xdata + .else + vaesenc xkeyA, var_xdata, var_xdata + .endif + .set i, (i +1) + .endr + + .if (klen != KEY_128) + vmovdqa 11*16(p_keys), xkeyA + .endif + + .set i, 0 + .rept by + club XDATA, i + /* key 10 */ + .if (klen == KEY_128) + vaesenclast xkeyB, var_xdata, var_xdata + .else + vaesenc xkeyB, var_xdata, var_xdata + .endif + .set i, (i +1) + .endr + + .if (klen != KEY_128) + .if (load_keys) + vmovdqa 12*16(p_keys), xkey12 + .endif + + .set i, 0 + .rept by + club XDATA, i + vaesenc xkeyA, var_xdata, var_xdata /* key 11 */ + .set i, (i +1) + .endr + + .if (klen == KEY_256) + vmovdqa 13*16(p_keys), xkeyA + .endif + + .set i, 0 + .rept by + club XDATA, i + .if (klen == KEY_256) + /* key 12 */ + vaesenc xkey12, var_xdata, var_xdata + .else + vaesenclast xkey12, var_xdata, var_xdata + .endif + .set i, (i +1) + .endr + + .if (klen == KEY_256) + vmovdqa 14*16(p_keys), xkeyB + + .set i, 0 + .rept by + club XDATA, i + /* key 13 */ + vaesenc xkeyA, var_xdata, var_xdata + .set i, (i +1) + .endr + + .set i, 0 + .rept by + club XDATA, i + /* key 14 */ + vaesenclast xkeyB, var_xdata, var_xdata + .set i, (i +1) + .endr + .endif + .endif + + .set i, 0 + .rept (by / 2) + .set j, (i+1) + VMOVDQ (i*16 - 16*by)(p_in), xkeyA + VMOVDQ (j*16 - 16*by)(p_in), xkeyB + club XDATA, i + vpxor xkeyA, var_xdata, var_xdata + club XDATA, j + vpxor xkeyB, var_xdata, var_xdata + .set i, (i+2) + .endr + + .if (i < by) + VMOVDQ (i*16 - 16*by)(p_in), xkeyA + club XDATA, i + vpxor xkeyA, var_xdata, var_xdata + .endif + + .set i, 0 + .rept by + club XDATA, i + VMOVDQ var_xdata, i*16(p_out) + .set i, (i+1) + .endr +.endm + +.macro do_aes_load val, key_len + do_aes \val, 1, \key_len +.endm + +.macro do_aes_noload val, key_len + do_aes \val, 0, \key_len +.endm + +/* main body of aes ctr load */ + +.macro do_aes_ctrmain key_len + cmp $16, num_bytes + jb .Ldo_return2\key_len + + vmovdqa byteswap_const(%rip), xbyteswap + vmovdqu (p_iv), xcounter + vpshufb xbyteswap, xcounter, xcounter + + mov num_bytes, tmp + and $(7*16), tmp + jz .Lmult_of_8_blks\key_len + + /* 1 <= tmp <= 7 */ + cmp $(4*16), tmp + jg .Lgt4\key_len + je .Leq4\key_len + +.Llt4\key_len: + cmp $(2*16), tmp + jg .Leq3\key_len + je .Leq2\key_len + +.Leq1\key_len: + do_aes_load 1, \key_len + add $(1*16), p_out + and $(~7*16), num_bytes + jz .Ldo_return2\key_len + jmp .Lmain_loop2\key_len + +.Leq2\key_len: + do_aes_load 2, \key_len + add $(2*16), p_out + and $(~7*16), num_bytes + jz .Ldo_return2\key_len + jmp .Lmain_loop2\key_len + + +.Leq3\key_len: + do_aes_load 3, \key_len + add $(3*16), p_out + and $(~7*16), num_bytes + jz .Ldo_return2\key_len + jmp .Lmain_loop2\key_len + +.Leq4\key_len: + do_aes_load 4, \key_len + add $(4*16), p_out + and $(~7*16), num_bytes + jz .Ldo_return2\key_len + jmp .Lmain_loop2\key_len + +.Lgt4\key_len: + cmp $(6*16), tmp + jg .Leq7\key_len + je .Leq6\key_len + +.Leq5\key_len: + do_aes_load 5, \key_len + add $(5*16), p_out + and $(~7*16), num_bytes + jz .Ldo_return2\key_len + jmp .Lmain_loop2\key_len + +.Leq6\key_len: + do_aes_load 6, \key_len + add $(6*16), p_out + and $(~7*16), num_bytes + jz .Ldo_return2\key_len + jmp .Lmain_loop2\key_len + +.Leq7\key_len: + do_aes_load 7, \key_len + add $(7*16), p_out + and $(~7*16), num_bytes + jz .Ldo_return2\key_len + jmp .Lmain_loop2\key_len + +.Lmult_of_8_blks\key_len: + .if (\key_len != KEY_128) + vmovdqa 0*16(p_keys), xkey0 + vmovdqa 4*16(p_keys), xkey4 + vmovdqa 8*16(p_keys), xkey8 + vmovdqa 12*16(p_keys), xkey12 + .else + vmovdqa 0*16(p_keys), xkey0 + vmovdqa 3*16(p_keys), xkey4 + vmovdqa 6*16(p_keys), xkey8 + vmovdqa 9*16(p_keys), xkey12 + .endif +.align 16 +.Lmain_loop2\key_len: + /* num_bytes is a multiple of 8 and >0 */ + do_aes_noload 8, \key_len + add $(8*16), p_out + sub $(8*16), num_bytes + jne .Lmain_loop2\key_len + +.Ldo_return2\key_len: + /* return updated IV */ + vpshufb xbyteswap, xcounter, xcounter + vmovdqu xcounter, (p_iv) + ret +.endm + +/* + * routine to do AES128 CTR enc/decrypt "by8" + * XMM registers are clobbered. + * Saving/restoring must be done at a higher level + * aes_ctr_enc_128_avx_by8(void *in, void *iv, void *keys, void *out, + * unsigned int num_bytes) + */ +ENTRY(aes_ctr_enc_128_avx_by8) + /* call the aes main loop */ + do_aes_ctrmain KEY_128 + +ENDPROC(aes_ctr_enc_128_avx_by8) + +/* + * routine to do AES192 CTR enc/decrypt "by8" + * XMM registers are clobbered. + * Saving/restoring must be done at a higher level + * aes_ctr_enc_192_avx_by8(void *in, void *iv, void *keys, void *out, + * unsigned int num_bytes) + */ +ENTRY(aes_ctr_enc_192_avx_by8) + /* call the aes main loop */ + do_aes_ctrmain KEY_192 + +ENDPROC(aes_ctr_enc_192_avx_by8) + +/* + * routine to do AES256 CTR enc/decrypt "by8" + * XMM registers are clobbered. + * Saving/restoring must be done at a higher level + * aes_ctr_enc_256_avx_by8(void *in, void *iv, void *keys, void *out, + * unsigned int num_bytes) + */ +ENTRY(aes_ctr_enc_256_avx_by8) + /* call the aes main loop */ + do_aes_ctrmain KEY_256 + +ENDPROC(aes_ctr_enc_256_avx_by8) diff --git a/arch/x86/crypto/aes_glue.c b/arch/x86/crypto/aes_glue.c new file mode 100644 index 000000000..e26984f7a --- /dev/null +++ b/arch/x86/crypto/aes_glue.c @@ -0,0 +1,70 @@ +/* + * Glue Code for the asm optimized version of the AES Cipher Algorithm + * + */ + +#include <linux/module.h> +#include <crypto/aes.h> +#include <asm/crypto/aes.h> + +asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in); +asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in); + +void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src) +{ + aes_enc_blk(ctx, dst, src); +} +EXPORT_SYMBOL_GPL(crypto_aes_encrypt_x86); + +void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src) +{ + aes_dec_blk(ctx, dst, src); +} +EXPORT_SYMBOL_GPL(crypto_aes_decrypt_x86); + +static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + aes_enc_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + aes_dec_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static struct crypto_alg aes_alg = { + .cra_name = "aes", + .cra_driver_name = "aes-asm", + .cra_priority = 200, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct crypto_aes_ctx), + .cra_module = THIS_MODULE, + .cra_u = { + .cipher = { + .cia_min_keysize = AES_MIN_KEY_SIZE, + .cia_max_keysize = AES_MAX_KEY_SIZE, + .cia_setkey = crypto_aes_set_key, + .cia_encrypt = aes_encrypt, + .cia_decrypt = aes_decrypt + } + } +}; + +static int __init aes_init(void) +{ + return crypto_register_alg(&aes_alg); +} + +static void __exit aes_fini(void) +{ + crypto_unregister_alg(&aes_alg); +} + +module_init(aes_init); +module_exit(aes_fini); + +MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, asm optimized"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_CRYPTO("aes"); +MODULE_ALIAS_CRYPTO("aes-asm"); diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S new file mode 100644 index 000000000..29b27f9a6 --- /dev/null +++ b/arch/x86/crypto/aesni-intel_asm.S @@ -0,0 +1,2842 @@ +/* + * Implement AES algorithm in Intel AES-NI instructions. + * + * The white paper of AES-NI instructions can be downloaded from: + * http://softwarecommunity.intel.com/isn/downloads/intelavx/AES-Instructions-Set_WP.pdf + * + * Copyright (C) 2008, Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * Vinodh Gopal <vinodh.gopal@intel.com> + * Kahraman Akdemir + * + * Added RFC4106 AES-GCM support for 128-bit keys under the AEAD + * interface for 64-bit kernels. + * Authors: Erdinc Ozturk (erdinc.ozturk@intel.com) + * Aidan O'Mahony (aidan.o.mahony@intel.com) + * Adrian Hoban <adrian.hoban@intel.com> + * James Guilford (james.guilford@intel.com) + * Gabriele Paoloni <gabriele.paoloni@intel.com> + * Tadeusz Struk (tadeusz.struk@intel.com) + * Wajdi Feghali (wajdi.k.feghali@intel.com) + * Copyright (c) 2010, Intel Corporation. + * + * Ported x86_64 version to x86: + * Author: Mathias Krause <minipli@googlemail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/linkage.h> +#include <asm/inst.h> +#include <asm/frame.h> +#include <asm/nospec-branch.h> + +/* + * The following macros are used to move an (un)aligned 16 byte value to/from + * an XMM register. This can done for either FP or integer values, for FP use + * movaps (move aligned packed single) or integer use movdqa (move double quad + * aligned). It doesn't make a performance difference which instruction is used + * since Nehalem (original Core i7) was released. However, the movaps is a byte + * shorter, so that is the one we'll use for now. (same for unaligned). + */ +#define MOVADQ movaps +#define MOVUDQ movups + +#ifdef __x86_64__ + +# constants in mergeable sections, linker can reorder and merge +.section .rodata.cst16.gf128mul_x_ble_mask, "aM", @progbits, 16 +.align 16 +.Lgf128mul_x_ble_mask: + .octa 0x00000000000000010000000000000087 +.section .rodata.cst16.POLY, "aM", @progbits, 16 +.align 16 +POLY: .octa 0xC2000000000000000000000000000001 +.section .rodata.cst16.TWOONE, "aM", @progbits, 16 +.align 16 +TWOONE: .octa 0x00000001000000000000000000000001 + +.section .rodata.cst16.SHUF_MASK, "aM", @progbits, 16 +.align 16 +SHUF_MASK: .octa 0x000102030405060708090A0B0C0D0E0F +.section .rodata.cst16.MASK1, "aM", @progbits, 16 +.align 16 +MASK1: .octa 0x0000000000000000ffffffffffffffff +.section .rodata.cst16.MASK2, "aM", @progbits, 16 +.align 16 +MASK2: .octa 0xffffffffffffffff0000000000000000 +.section .rodata.cst16.ONE, "aM", @progbits, 16 +.align 16 +ONE: .octa 0x00000000000000000000000000000001 +.section .rodata.cst16.F_MIN_MASK, "aM", @progbits, 16 +.align 16 +F_MIN_MASK: .octa 0xf1f2f3f4f5f6f7f8f9fafbfcfdfeff0 +.section .rodata.cst16.dec, "aM", @progbits, 16 +.align 16 +dec: .octa 0x1 +.section .rodata.cst16.enc, "aM", @progbits, 16 +.align 16 +enc: .octa 0x2 + +# order of these constants should not change. +# more specifically, ALL_F should follow SHIFT_MASK, +# and zero should follow ALL_F +.section .rodata, "a", @progbits +.align 16 +SHIFT_MASK: .octa 0x0f0e0d0c0b0a09080706050403020100 +ALL_F: .octa 0xffffffffffffffffffffffffffffffff + .octa 0x00000000000000000000000000000000 + +.text + + +#define STACK_OFFSET 8*3 + +#define AadHash 16*0 +#define AadLen 16*1 +#define InLen (16*1)+8 +#define PBlockEncKey 16*2 +#define OrigIV 16*3 +#define CurCount 16*4 +#define PBlockLen 16*5 +#define HashKey 16*6 // store HashKey <<1 mod poly here +#define HashKey_2 16*7 // store HashKey^2 <<1 mod poly here +#define HashKey_3 16*8 // store HashKey^3 <<1 mod poly here +#define HashKey_4 16*9 // store HashKey^4 <<1 mod poly here +#define HashKey_k 16*10 // store XOR of High 64 bits and Low 64 + // bits of HashKey <<1 mod poly here + //(for Karatsuba purposes) +#define HashKey_2_k 16*11 // store XOR of High 64 bits and Low 64 + // bits of HashKey^2 <<1 mod poly here + // (for Karatsuba purposes) +#define HashKey_3_k 16*12 // store XOR of High 64 bits and Low 64 + // bits of HashKey^3 <<1 mod poly here + // (for Karatsuba purposes) +#define HashKey_4_k 16*13 // store XOR of High 64 bits and Low 64 + // bits of HashKey^4 <<1 mod poly here + // (for Karatsuba purposes) + +#define arg1 rdi +#define arg2 rsi +#define arg3 rdx +#define arg4 rcx +#define arg5 r8 +#define arg6 r9 +#define arg7 STACK_OFFSET+8(%rsp) +#define arg8 STACK_OFFSET+16(%rsp) +#define arg9 STACK_OFFSET+24(%rsp) +#define arg10 STACK_OFFSET+32(%rsp) +#define arg11 STACK_OFFSET+40(%rsp) +#define keysize 2*15*16(%arg1) +#endif + + +#define STATE1 %xmm0 +#define STATE2 %xmm4 +#define STATE3 %xmm5 +#define STATE4 %xmm6 +#define STATE STATE1 +#define IN1 %xmm1 +#define IN2 %xmm7 +#define IN3 %xmm8 +#define IN4 %xmm9 +#define IN IN1 +#define KEY %xmm2 +#define IV %xmm3 + +#define BSWAP_MASK %xmm10 +#define CTR %xmm11 +#define INC %xmm12 + +#define GF128MUL_MASK %xmm10 + +#ifdef __x86_64__ +#define AREG %rax +#define KEYP %rdi +#define OUTP %rsi +#define UKEYP OUTP +#define INP %rdx +#define LEN %rcx +#define IVP %r8 +#define KLEN %r9d +#define T1 %r10 +#define TKEYP T1 +#define T2 %r11 +#define TCTR_LOW T2 +#else +#define AREG %eax +#define KEYP %edi +#define OUTP AREG +#define UKEYP OUTP +#define INP %edx +#define LEN %esi +#define IVP %ebp +#define KLEN %ebx +#define T1 %ecx +#define TKEYP T1 +#endif + +.macro FUNC_SAVE + push %r12 + push %r13 + push %r14 +# +# states of %xmm registers %xmm6:%xmm15 not saved +# all %xmm registers are clobbered +# +.endm + + +.macro FUNC_RESTORE + pop %r14 + pop %r13 + pop %r12 +.endm + +# Precompute hashkeys. +# Input: Hash subkey. +# Output: HashKeys stored in gcm_context_data. Only needs to be called +# once per key. +# clobbers r12, and tmp xmm registers. +.macro PRECOMPUTE SUBKEY TMP1 TMP2 TMP3 TMP4 TMP5 TMP6 TMP7 + mov \SUBKEY, %r12 + movdqu (%r12), \TMP3 + movdqa SHUF_MASK(%rip), \TMP2 + PSHUFB_XMM \TMP2, \TMP3 + + # precompute HashKey<<1 mod poly from the HashKey (required for GHASH) + + movdqa \TMP3, \TMP2 + psllq $1, \TMP3 + psrlq $63, \TMP2 + movdqa \TMP2, \TMP1 + pslldq $8, \TMP2 + psrldq $8, \TMP1 + por \TMP2, \TMP3 + + # reduce HashKey<<1 + + pshufd $0x24, \TMP1, \TMP2 + pcmpeqd TWOONE(%rip), \TMP2 + pand POLY(%rip), \TMP2 + pxor \TMP2, \TMP3 + movdqu \TMP3, HashKey(%arg2) + + movdqa \TMP3, \TMP5 + pshufd $78, \TMP3, \TMP1 + pxor \TMP3, \TMP1 + movdqu \TMP1, HashKey_k(%arg2) + + GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 +# TMP5 = HashKey^2<<1 (mod poly) + movdqu \TMP5, HashKey_2(%arg2) +# HashKey_2 = HashKey^2<<1 (mod poly) + pshufd $78, \TMP5, \TMP1 + pxor \TMP5, \TMP1 + movdqu \TMP1, HashKey_2_k(%arg2) + + GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 +# TMP5 = HashKey^3<<1 (mod poly) + movdqu \TMP5, HashKey_3(%arg2) + pshufd $78, \TMP5, \TMP1 + pxor \TMP5, \TMP1 + movdqu \TMP1, HashKey_3_k(%arg2) + + GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 +# TMP5 = HashKey^3<<1 (mod poly) + movdqu \TMP5, HashKey_4(%arg2) + pshufd $78, \TMP5, \TMP1 + pxor \TMP5, \TMP1 + movdqu \TMP1, HashKey_4_k(%arg2) +.endm + +# GCM_INIT initializes a gcm_context struct to prepare for encoding/decoding. +# Clobbers rax, r10-r13 and xmm0-xmm6, %xmm13 +.macro GCM_INIT Iv SUBKEY AAD AADLEN + mov \AADLEN, %r11 + mov %r11, AadLen(%arg2) # ctx_data.aad_length = aad_length + xor %r11d, %r11d + mov %r11, InLen(%arg2) # ctx_data.in_length = 0 + mov %r11, PBlockLen(%arg2) # ctx_data.partial_block_length = 0 + mov %r11, PBlockEncKey(%arg2) # ctx_data.partial_block_enc_key = 0 + mov \Iv, %rax + movdqu (%rax), %xmm0 + movdqu %xmm0, OrigIV(%arg2) # ctx_data.orig_IV = iv + + movdqa SHUF_MASK(%rip), %xmm2 + PSHUFB_XMM %xmm2, %xmm0 + movdqu %xmm0, CurCount(%arg2) # ctx_data.current_counter = iv + + PRECOMPUTE \SUBKEY, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7 + movdqu HashKey(%arg2), %xmm13 + + CALC_AAD_HASH %xmm13, \AAD, \AADLEN, %xmm0, %xmm1, %xmm2, %xmm3, \ + %xmm4, %xmm5, %xmm6 +.endm + +# GCM_ENC_DEC Encodes/Decodes given data. Assumes that the passed gcm_context +# struct has been initialized by GCM_INIT. +# Requires the input data be at least 1 byte long because of READ_PARTIAL_BLOCK +# Clobbers rax, r10-r13, and xmm0-xmm15 +.macro GCM_ENC_DEC operation + movdqu AadHash(%arg2), %xmm8 + movdqu HashKey(%arg2), %xmm13 + add %arg5, InLen(%arg2) + + xor %r11d, %r11d # initialise the data pointer offset as zero + PARTIAL_BLOCK %arg3 %arg4 %arg5 %r11 %xmm8 \operation + + sub %r11, %arg5 # sub partial block data used + mov %arg5, %r13 # save the number of bytes + + and $-16, %r13 # %r13 = %r13 - (%r13 mod 16) + mov %r13, %r12 + # Encrypt/Decrypt first few blocks + + and $(3<<4), %r12 + jz _initial_num_blocks_is_0_\@ + cmp $(2<<4), %r12 + jb _initial_num_blocks_is_1_\@ + je _initial_num_blocks_is_2_\@ +_initial_num_blocks_is_3_\@: + INITIAL_BLOCKS_ENC_DEC %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \ +%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 5, 678, \operation + sub $48, %r13 + jmp _initial_blocks_\@ +_initial_num_blocks_is_2_\@: + INITIAL_BLOCKS_ENC_DEC %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \ +%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 6, 78, \operation + sub $32, %r13 + jmp _initial_blocks_\@ +_initial_num_blocks_is_1_\@: + INITIAL_BLOCKS_ENC_DEC %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \ +%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 7, 8, \operation + sub $16, %r13 + jmp _initial_blocks_\@ +_initial_num_blocks_is_0_\@: + INITIAL_BLOCKS_ENC_DEC %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \ +%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 8, 0, \operation +_initial_blocks_\@: + + # Main loop - Encrypt/Decrypt remaining blocks + + cmp $0, %r13 + je _zero_cipher_left_\@ + sub $64, %r13 + je _four_cipher_left_\@ +_crypt_by_4_\@: + GHASH_4_ENCRYPT_4_PARALLEL_\operation %xmm9, %xmm10, %xmm11, %xmm12, \ + %xmm13, %xmm14, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, \ + %xmm7, %xmm8, enc + add $64, %r11 + sub $64, %r13 + jne _crypt_by_4_\@ +_four_cipher_left_\@: + GHASH_LAST_4 %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, \ +%xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm8 +_zero_cipher_left_\@: + movdqu %xmm8, AadHash(%arg2) + movdqu %xmm0, CurCount(%arg2) + + mov %arg5, %r13 + and $15, %r13 # %r13 = arg5 (mod 16) + je _multiple_of_16_bytes_\@ + + mov %r13, PBlockLen(%arg2) + + # Handle the last <16 Byte block separately + paddd ONE(%rip), %xmm0 # INCR CNT to get Yn + movdqu %xmm0, CurCount(%arg2) + movdqa SHUF_MASK(%rip), %xmm10 + PSHUFB_XMM %xmm10, %xmm0 + + ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # Encrypt(K, Yn) + movdqu %xmm0, PBlockEncKey(%arg2) + + cmp $16, %arg5 + jge _large_enough_update_\@ + + lea (%arg4,%r11,1), %r10 + mov %r13, %r12 + READ_PARTIAL_BLOCK %r10 %r12 %xmm2 %xmm1 + jmp _data_read_\@ + +_large_enough_update_\@: + sub $16, %r11 + add %r13, %r11 + + # receive the last <16 Byte block + movdqu (%arg4, %r11, 1), %xmm1 + + sub %r13, %r11 + add $16, %r11 + + lea SHIFT_MASK+16(%rip), %r12 + # adjust the shuffle mask pointer to be able to shift 16-r13 bytes + # (r13 is the number of bytes in plaintext mod 16) + sub %r13, %r12 + # get the appropriate shuffle mask + movdqu (%r12), %xmm2 + # shift right 16-r13 bytes + PSHUFB_XMM %xmm2, %xmm1 + +_data_read_\@: + lea ALL_F+16(%rip), %r12 + sub %r13, %r12 + +.ifc \operation, dec + movdqa %xmm1, %xmm2 +.endif + pxor %xmm1, %xmm0 # XOR Encrypt(K, Yn) + movdqu (%r12), %xmm1 + # get the appropriate mask to mask out top 16-r13 bytes of xmm0 + pand %xmm1, %xmm0 # mask out top 16-r13 bytes of xmm0 +.ifc \operation, dec + pand %xmm1, %xmm2 + movdqa SHUF_MASK(%rip), %xmm10 + PSHUFB_XMM %xmm10 ,%xmm2 + + pxor %xmm2, %xmm8 +.else + movdqa SHUF_MASK(%rip), %xmm10 + PSHUFB_XMM %xmm10,%xmm0 + + pxor %xmm0, %xmm8 +.endif + + movdqu %xmm8, AadHash(%arg2) +.ifc \operation, enc + # GHASH computation for the last <16 byte block + movdqa SHUF_MASK(%rip), %xmm10 + # shuffle xmm0 back to output as ciphertext + PSHUFB_XMM %xmm10, %xmm0 +.endif + + # Output %r13 bytes + MOVQ_R64_XMM %xmm0, %rax + cmp $8, %r13 + jle _less_than_8_bytes_left_\@ + mov %rax, (%arg3 , %r11, 1) + add $8, %r11 + psrldq $8, %xmm0 + MOVQ_R64_XMM %xmm0, %rax + sub $8, %r13 +_less_than_8_bytes_left_\@: + mov %al, (%arg3, %r11, 1) + add $1, %r11 + shr $8, %rax + sub $1, %r13 + jne _less_than_8_bytes_left_\@ +_multiple_of_16_bytes_\@: +.endm + +# GCM_COMPLETE Finishes update of tag of last partial block +# Output: Authorization Tag (AUTH_TAG) +# Clobbers rax, r10-r12, and xmm0, xmm1, xmm5-xmm15 +.macro GCM_COMPLETE AUTHTAG AUTHTAGLEN + movdqu AadHash(%arg2), %xmm8 + movdqu HashKey(%arg2), %xmm13 + + mov PBlockLen(%arg2), %r12 + + cmp $0, %r12 + je _partial_done\@ + + GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6 + +_partial_done\@: + mov AadLen(%arg2), %r12 # %r13 = aadLen (number of bytes) + shl $3, %r12 # convert into number of bits + movd %r12d, %xmm15 # len(A) in %xmm15 + mov InLen(%arg2), %r12 + shl $3, %r12 # len(C) in bits (*128) + MOVQ_R64_XMM %r12, %xmm1 + + pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000 + pxor %xmm1, %xmm15 # %xmm15 = len(A)||len(C) + pxor %xmm15, %xmm8 + GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6 + # final GHASH computation + movdqa SHUF_MASK(%rip), %xmm10 + PSHUFB_XMM %xmm10, %xmm8 + + movdqu OrigIV(%arg2), %xmm0 # %xmm0 = Y0 + ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # E(K, Y0) + pxor %xmm8, %xmm0 +_return_T_\@: + mov \AUTHTAG, %r10 # %r10 = authTag + mov \AUTHTAGLEN, %r11 # %r11 = auth_tag_len + cmp $16, %r11 + je _T_16_\@ + cmp $8, %r11 + jl _T_4_\@ +_T_8_\@: + MOVQ_R64_XMM %xmm0, %rax + mov %rax, (%r10) + add $8, %r10 + sub $8, %r11 + psrldq $8, %xmm0 + cmp $0, %r11 + je _return_T_done_\@ +_T_4_\@: + movd %xmm0, %eax + mov %eax, (%r10) + add $4, %r10 + sub $4, %r11 + psrldq $4, %xmm0 + cmp $0, %r11 + je _return_T_done_\@ +_T_123_\@: + movd %xmm0, %eax + cmp $2, %r11 + jl _T_1_\@ + mov %ax, (%r10) + cmp $2, %r11 + je _return_T_done_\@ + add $2, %r10 + sar $16, %eax +_T_1_\@: + mov %al, (%r10) + jmp _return_T_done_\@ +_T_16_\@: + movdqu %xmm0, (%r10) +_return_T_done_\@: +.endm + +#ifdef __x86_64__ +/* GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0) +* +* +* Input: A and B (128-bits each, bit-reflected) +* Output: C = A*B*x mod poly, (i.e. >>1 ) +* To compute GH = GH*HashKey mod poly, give HK = HashKey<<1 mod poly as input +* GH = GH * HK * x mod poly which is equivalent to GH*HashKey mod poly. +* +*/ +.macro GHASH_MUL GH HK TMP1 TMP2 TMP3 TMP4 TMP5 + movdqa \GH, \TMP1 + pshufd $78, \GH, \TMP2 + pshufd $78, \HK, \TMP3 + pxor \GH, \TMP2 # TMP2 = a1+a0 + pxor \HK, \TMP3 # TMP3 = b1+b0 + PCLMULQDQ 0x11, \HK, \TMP1 # TMP1 = a1*b1 + PCLMULQDQ 0x00, \HK, \GH # GH = a0*b0 + PCLMULQDQ 0x00, \TMP3, \TMP2 # TMP2 = (a0+a1)*(b1+b0) + pxor \GH, \TMP2 + pxor \TMP1, \TMP2 # TMP2 = (a0*b0)+(a1*b0) + movdqa \TMP2, \TMP3 + pslldq $8, \TMP3 # left shift TMP3 2 DWs + psrldq $8, \TMP2 # right shift TMP2 2 DWs + pxor \TMP3, \GH + pxor \TMP2, \TMP1 # TMP2:GH holds the result of GH*HK + + # first phase of the reduction + + movdqa \GH, \TMP2 + movdqa \GH, \TMP3 + movdqa \GH, \TMP4 # copy GH into TMP2,TMP3 and TMP4 + # in in order to perform + # independent shifts + pslld $31, \TMP2 # packed right shift <<31 + pslld $30, \TMP3 # packed right shift <<30 + pslld $25, \TMP4 # packed right shift <<25 + pxor \TMP3, \TMP2 # xor the shifted versions + pxor \TMP4, \TMP2 + movdqa \TMP2, \TMP5 + psrldq $4, \TMP5 # right shift TMP5 1 DW + pslldq $12, \TMP2 # left shift TMP2 3 DWs + pxor \TMP2, \GH + + # second phase of the reduction + + movdqa \GH,\TMP2 # copy GH into TMP2,TMP3 and TMP4 + # in in order to perform + # independent shifts + movdqa \GH,\TMP3 + movdqa \GH,\TMP4 + psrld $1,\TMP2 # packed left shift >>1 + psrld $2,\TMP3 # packed left shift >>2 + psrld $7,\TMP4 # packed left shift >>7 + pxor \TMP3,\TMP2 # xor the shifted versions + pxor \TMP4,\TMP2 + pxor \TMP5, \TMP2 + pxor \TMP2, \GH + pxor \TMP1, \GH # result is in TMP1 +.endm + +# Reads DLEN bytes starting at DPTR and stores in XMMDst +# where 0 < DLEN < 16 +# Clobbers %rax, DLEN and XMM1 +.macro READ_PARTIAL_BLOCK DPTR DLEN XMM1 XMMDst + cmp $8, \DLEN + jl _read_lt8_\@ + mov (\DPTR), %rax + MOVQ_R64_XMM %rax, \XMMDst + sub $8, \DLEN + jz _done_read_partial_block_\@ + xor %eax, %eax +_read_next_byte_\@: + shl $8, %rax + mov 7(\DPTR, \DLEN, 1), %al + dec \DLEN + jnz _read_next_byte_\@ + MOVQ_R64_XMM %rax, \XMM1 + pslldq $8, \XMM1 + por \XMM1, \XMMDst + jmp _done_read_partial_block_\@ +_read_lt8_\@: + xor %eax, %eax +_read_next_byte_lt8_\@: + shl $8, %rax + mov -1(\DPTR, \DLEN, 1), %al + dec \DLEN + jnz _read_next_byte_lt8_\@ + MOVQ_R64_XMM %rax, \XMMDst +_done_read_partial_block_\@: +.endm + +# CALC_AAD_HASH: Calculates the hash of the data which will not be encrypted. +# clobbers r10-11, xmm14 +.macro CALC_AAD_HASH HASHKEY AAD AADLEN TMP1 TMP2 TMP3 TMP4 TMP5 \ + TMP6 TMP7 + MOVADQ SHUF_MASK(%rip), %xmm14 + mov \AAD, %r10 # %r10 = AAD + mov \AADLEN, %r11 # %r11 = aadLen + pxor \TMP7, \TMP7 + pxor \TMP6, \TMP6 + + cmp $16, %r11 + jl _get_AAD_rest\@ +_get_AAD_blocks\@: + movdqu (%r10), \TMP7 + PSHUFB_XMM %xmm14, \TMP7 # byte-reflect the AAD data + pxor \TMP7, \TMP6 + GHASH_MUL \TMP6, \HASHKEY, \TMP1, \TMP2, \TMP3, \TMP4, \TMP5 + add $16, %r10 + sub $16, %r11 + cmp $16, %r11 + jge _get_AAD_blocks\@ + + movdqu \TMP6, \TMP7 + + /* read the last <16B of AAD */ +_get_AAD_rest\@: + cmp $0, %r11 + je _get_AAD_done\@ + + READ_PARTIAL_BLOCK %r10, %r11, \TMP1, \TMP7 + PSHUFB_XMM %xmm14, \TMP7 # byte-reflect the AAD data + pxor \TMP6, \TMP7 + GHASH_MUL \TMP7, \HASHKEY, \TMP1, \TMP2, \TMP3, \TMP4, \TMP5 + movdqu \TMP7, \TMP6 + +_get_AAD_done\@: + movdqu \TMP6, AadHash(%arg2) +.endm + +# PARTIAL_BLOCK: Handles encryption/decryption and the tag partial blocks +# between update calls. +# Requires the input data be at least 1 byte long due to READ_PARTIAL_BLOCK +# Outputs encrypted bytes, and updates hash and partial info in gcm_data_context +# Clobbers rax, r10, r12, r13, xmm0-6, xmm9-13 +.macro PARTIAL_BLOCK CYPH_PLAIN_OUT PLAIN_CYPH_IN PLAIN_CYPH_LEN DATA_OFFSET \ + AAD_HASH operation + mov PBlockLen(%arg2), %r13 + cmp $0, %r13 + je _partial_block_done_\@ # Leave Macro if no partial blocks + # Read in input data without over reading + cmp $16, \PLAIN_CYPH_LEN + jl _fewer_than_16_bytes_\@ + movups (\PLAIN_CYPH_IN), %xmm1 # If more than 16 bytes, just fill xmm + jmp _data_read_\@ + +_fewer_than_16_bytes_\@: + lea (\PLAIN_CYPH_IN, \DATA_OFFSET, 1), %r10 + mov \PLAIN_CYPH_LEN, %r12 + READ_PARTIAL_BLOCK %r10 %r12 %xmm0 %xmm1 + + mov PBlockLen(%arg2), %r13 + +_data_read_\@: # Finished reading in data + + movdqu PBlockEncKey(%arg2), %xmm9 + movdqu HashKey(%arg2), %xmm13 + + lea SHIFT_MASK(%rip), %r12 + + # adjust the shuffle mask pointer to be able to shift r13 bytes + # r16-r13 is the number of bytes in plaintext mod 16) + add %r13, %r12 + movdqu (%r12), %xmm2 # get the appropriate shuffle mask + PSHUFB_XMM %xmm2, %xmm9 # shift right r13 bytes + +.ifc \operation, dec + movdqa %xmm1, %xmm3 + pxor %xmm1, %xmm9 # Cyphertext XOR E(K, Yn) + + mov \PLAIN_CYPH_LEN, %r10 + add %r13, %r10 + # Set r10 to be the amount of data left in CYPH_PLAIN_IN after filling + sub $16, %r10 + # Determine if if partial block is not being filled and + # shift mask accordingly + jge _no_extra_mask_1_\@ + sub %r10, %r12 +_no_extra_mask_1_\@: + + movdqu ALL_F-SHIFT_MASK(%r12), %xmm1 + # get the appropriate mask to mask out bottom r13 bytes of xmm9 + pand %xmm1, %xmm9 # mask out bottom r13 bytes of xmm9 + + pand %xmm1, %xmm3 + movdqa SHUF_MASK(%rip), %xmm10 + PSHUFB_XMM %xmm10, %xmm3 + PSHUFB_XMM %xmm2, %xmm3 + pxor %xmm3, \AAD_HASH + + cmp $0, %r10 + jl _partial_incomplete_1_\@ + + # GHASH computation for the last <16 Byte block + GHASH_MUL \AAD_HASH, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 + xor %eax, %eax + + mov %rax, PBlockLen(%arg2) + jmp _dec_done_\@ +_partial_incomplete_1_\@: + add \PLAIN_CYPH_LEN, PBlockLen(%arg2) +_dec_done_\@: + movdqu \AAD_HASH, AadHash(%arg2) +.else + pxor %xmm1, %xmm9 # Plaintext XOR E(K, Yn) + + mov \PLAIN_CYPH_LEN, %r10 + add %r13, %r10 + # Set r10 to be the amount of data left in CYPH_PLAIN_IN after filling + sub $16, %r10 + # Determine if if partial block is not being filled and + # shift mask accordingly + jge _no_extra_mask_2_\@ + sub %r10, %r12 +_no_extra_mask_2_\@: + + movdqu ALL_F-SHIFT_MASK(%r12), %xmm1 + # get the appropriate mask to mask out bottom r13 bytes of xmm9 + pand %xmm1, %xmm9 + + movdqa SHUF_MASK(%rip), %xmm1 + PSHUFB_XMM %xmm1, %xmm9 + PSHUFB_XMM %xmm2, %xmm9 + pxor %xmm9, \AAD_HASH + + cmp $0, %r10 + jl _partial_incomplete_2_\@ + + # GHASH computation for the last <16 Byte block + GHASH_MUL \AAD_HASH, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 + xor %eax, %eax + + mov %rax, PBlockLen(%arg2) + jmp _encode_done_\@ +_partial_incomplete_2_\@: + add \PLAIN_CYPH_LEN, PBlockLen(%arg2) +_encode_done_\@: + movdqu \AAD_HASH, AadHash(%arg2) + + movdqa SHUF_MASK(%rip), %xmm10 + # shuffle xmm9 back to output as ciphertext + PSHUFB_XMM %xmm10, %xmm9 + PSHUFB_XMM %xmm2, %xmm9 +.endif + # output encrypted Bytes + cmp $0, %r10 + jl _partial_fill_\@ + mov %r13, %r12 + mov $16, %r13 + # Set r13 to be the number of bytes to write out + sub %r12, %r13 + jmp _count_set_\@ +_partial_fill_\@: + mov \PLAIN_CYPH_LEN, %r13 +_count_set_\@: + movdqa %xmm9, %xmm0 + MOVQ_R64_XMM %xmm0, %rax + cmp $8, %r13 + jle _less_than_8_bytes_left_\@ + + mov %rax, (\CYPH_PLAIN_OUT, \DATA_OFFSET, 1) + add $8, \DATA_OFFSET + psrldq $8, %xmm0 + MOVQ_R64_XMM %xmm0, %rax + sub $8, %r13 +_less_than_8_bytes_left_\@: + movb %al, (\CYPH_PLAIN_OUT, \DATA_OFFSET, 1) + add $1, \DATA_OFFSET + shr $8, %rax + sub $1, %r13 + jne _less_than_8_bytes_left_\@ +_partial_block_done_\@: +.endm # PARTIAL_BLOCK + +/* +* if a = number of total plaintext bytes +* b = floor(a/16) +* num_initial_blocks = b mod 4 +* encrypt the initial num_initial_blocks blocks and apply ghash on +* the ciphertext +* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers +* are clobbered +* arg1, %arg2, %arg3 are used as a pointer only, not modified +*/ + + +.macro INITIAL_BLOCKS_ENC_DEC TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \ + XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation + MOVADQ SHUF_MASK(%rip), %xmm14 + + movdqu AadHash(%arg2), %xmm\i # XMM0 = Y0 + + # start AES for num_initial_blocks blocks + + movdqu CurCount(%arg2), \XMM0 # XMM0 = Y0 + +.if (\i == 5) || (\i == 6) || (\i == 7) + + MOVADQ ONE(%RIP),\TMP1 + MOVADQ 0(%arg1),\TMP2 +.irpc index, \i_seq + paddd \TMP1, \XMM0 # INCR Y0 +.ifc \operation, dec + movdqa \XMM0, %xmm\index +.else + MOVADQ \XMM0, %xmm\index +.endif + PSHUFB_XMM %xmm14, %xmm\index # perform a 16 byte swap + pxor \TMP2, %xmm\index +.endr + lea 0x10(%arg1),%r10 + mov keysize,%eax + shr $2,%eax # 128->4, 192->6, 256->8 + add $5,%eax # 128->9, 192->11, 256->13 + +aes_loop_initial_\@: + MOVADQ (%r10),\TMP1 +.irpc index, \i_seq + AESENC \TMP1, %xmm\index +.endr + add $16,%r10 + sub $1,%eax + jnz aes_loop_initial_\@ + + MOVADQ (%r10), \TMP1 +.irpc index, \i_seq + AESENCLAST \TMP1, %xmm\index # Last Round +.endr +.irpc index, \i_seq + movdqu (%arg4 , %r11, 1), \TMP1 + pxor \TMP1, %xmm\index + movdqu %xmm\index, (%arg3 , %r11, 1) + # write back plaintext/ciphertext for num_initial_blocks + add $16, %r11 + +.ifc \operation, dec + movdqa \TMP1, %xmm\index +.endif + PSHUFB_XMM %xmm14, %xmm\index + + # prepare plaintext/ciphertext for GHASH computation +.endr +.endif + + # apply GHASH on num_initial_blocks blocks + +.if \i == 5 + pxor %xmm5, %xmm6 + GHASH_MUL %xmm6, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1 + pxor %xmm6, %xmm7 + GHASH_MUL %xmm7, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1 + pxor %xmm7, %xmm8 + GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1 +.elseif \i == 6 + pxor %xmm6, %xmm7 + GHASH_MUL %xmm7, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1 + pxor %xmm7, %xmm8 + GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1 +.elseif \i == 7 + pxor %xmm7, %xmm8 + GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1 +.endif + cmp $64, %r13 + jl _initial_blocks_done\@ + # no need for precomputed values +/* +* +* Precomputations for HashKey parallel with encryption of first 4 blocks. +* Haskey_i_k holds XORed values of the low and high parts of the Haskey_i +*/ + MOVADQ ONE(%RIP),\TMP1 + paddd \TMP1, \XMM0 # INCR Y0 + MOVADQ \XMM0, \XMM1 + PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap + + paddd \TMP1, \XMM0 # INCR Y0 + MOVADQ \XMM0, \XMM2 + PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap + + paddd \TMP1, \XMM0 # INCR Y0 + MOVADQ \XMM0, \XMM3 + PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap + + paddd \TMP1, \XMM0 # INCR Y0 + MOVADQ \XMM0, \XMM4 + PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap + + MOVADQ 0(%arg1),\TMP1 + pxor \TMP1, \XMM1 + pxor \TMP1, \XMM2 + pxor \TMP1, \XMM3 + pxor \TMP1, \XMM4 +.irpc index, 1234 # do 4 rounds + movaps 0x10*\index(%arg1), \TMP1 + AESENC \TMP1, \XMM1 + AESENC \TMP1, \XMM2 + AESENC \TMP1, \XMM3 + AESENC \TMP1, \XMM4 +.endr +.irpc index, 56789 # do next 5 rounds + movaps 0x10*\index(%arg1), \TMP1 + AESENC \TMP1, \XMM1 + AESENC \TMP1, \XMM2 + AESENC \TMP1, \XMM3 + AESENC \TMP1, \XMM4 +.endr + lea 0xa0(%arg1),%r10 + mov keysize,%eax + shr $2,%eax # 128->4, 192->6, 256->8 + sub $4,%eax # 128->0, 192->2, 256->4 + jz aes_loop_pre_done\@ + +aes_loop_pre_\@: + MOVADQ (%r10),\TMP2 +.irpc index, 1234 + AESENC \TMP2, %xmm\index +.endr + add $16,%r10 + sub $1,%eax + jnz aes_loop_pre_\@ + +aes_loop_pre_done\@: + MOVADQ (%r10), \TMP2 + AESENCLAST \TMP2, \XMM1 + AESENCLAST \TMP2, \XMM2 + AESENCLAST \TMP2, \XMM3 + AESENCLAST \TMP2, \XMM4 + movdqu 16*0(%arg4 , %r11 , 1), \TMP1 + pxor \TMP1, \XMM1 +.ifc \operation, dec + movdqu \XMM1, 16*0(%arg3 , %r11 , 1) + movdqa \TMP1, \XMM1 +.endif + movdqu 16*1(%arg4 , %r11 , 1), \TMP1 + pxor \TMP1, \XMM2 +.ifc \operation, dec + movdqu \XMM2, 16*1(%arg3 , %r11 , 1) + movdqa \TMP1, \XMM2 +.endif + movdqu 16*2(%arg4 , %r11 , 1), \TMP1 + pxor \TMP1, \XMM3 +.ifc \operation, dec + movdqu \XMM3, 16*2(%arg3 , %r11 , 1) + movdqa \TMP1, \XMM3 +.endif + movdqu 16*3(%arg4 , %r11 , 1), \TMP1 + pxor \TMP1, \XMM4 +.ifc \operation, dec + movdqu \XMM4, 16*3(%arg3 , %r11 , 1) + movdqa \TMP1, \XMM4 +.else + movdqu \XMM1, 16*0(%arg3 , %r11 , 1) + movdqu \XMM2, 16*1(%arg3 , %r11 , 1) + movdqu \XMM3, 16*2(%arg3 , %r11 , 1) + movdqu \XMM4, 16*3(%arg3 , %r11 , 1) +.endif + + add $64, %r11 + PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap + pxor \XMMDst, \XMM1 +# combine GHASHed value with the corresponding ciphertext + PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap + PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap + PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap + +_initial_blocks_done\@: + +.endm + +/* +* encrypt 4 blocks at a time +* ghash the 4 previously encrypted ciphertext blocks +* arg1, %arg3, %arg4 are used as pointers only, not modified +* %r11 is the data offset value +*/ +.macro GHASH_4_ENCRYPT_4_PARALLEL_enc TMP1 TMP2 TMP3 TMP4 TMP5 \ +TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation + + movdqa \XMM1, \XMM5 + movdqa \XMM2, \XMM6 + movdqa \XMM3, \XMM7 + movdqa \XMM4, \XMM8 + + movdqa SHUF_MASK(%rip), %xmm15 + # multiply TMP5 * HashKey using karatsuba + + movdqa \XMM5, \TMP4 + pshufd $78, \XMM5, \TMP6 + pxor \XMM5, \TMP6 + paddd ONE(%rip), \XMM0 # INCR CNT + movdqu HashKey_4(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1 + movdqa \XMM0, \XMM1 + paddd ONE(%rip), \XMM0 # INCR CNT + movdqa \XMM0, \XMM2 + paddd ONE(%rip), \XMM0 # INCR CNT + movdqa \XMM0, \XMM3 + paddd ONE(%rip), \XMM0 # INCR CNT + movdqa \XMM0, \XMM4 + PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap + PCLMULQDQ 0x00, \TMP5, \XMM5 # XMM5 = a0*b0 + PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap + + pxor (%arg1), \XMM1 + pxor (%arg1), \XMM2 + pxor (%arg1), \XMM3 + pxor (%arg1), \XMM4 + movdqu HashKey_4_k(%arg2), \TMP5 + PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0) + movaps 0x10(%arg1), \TMP1 + AESENC \TMP1, \XMM1 # Round 1 + AESENC \TMP1, \XMM2 + AESENC \TMP1, \XMM3 + AESENC \TMP1, \XMM4 + movaps 0x20(%arg1), \TMP1 + AESENC \TMP1, \XMM1 # Round 2 + AESENC \TMP1, \XMM2 + AESENC \TMP1, \XMM3 + AESENC \TMP1, \XMM4 + movdqa \XMM6, \TMP1 + pshufd $78, \XMM6, \TMP2 + pxor \XMM6, \TMP2 + movdqu HashKey_3(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1 + movaps 0x30(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 3 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + PCLMULQDQ 0x00, \TMP5, \XMM6 # XMM6 = a0*b0 + movaps 0x40(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 4 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + movdqu HashKey_3_k(%arg2), \TMP5 + PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + movaps 0x50(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 5 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + pxor \TMP1, \TMP4 +# accumulate the results in TMP4:XMM5, TMP6 holds the middle part + pxor \XMM6, \XMM5 + pxor \TMP2, \TMP6 + movdqa \XMM7, \TMP1 + pshufd $78, \XMM7, \TMP2 + pxor \XMM7, \TMP2 + movdqu HashKey_2(%arg2), \TMP5 + + # Multiply TMP5 * HashKey using karatsuba + + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 + movaps 0x60(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 6 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + PCLMULQDQ 0x00, \TMP5, \XMM7 # XMM7 = a0*b0 + movaps 0x70(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 7 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + movdqu HashKey_2_k(%arg2), \TMP5 + PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + movaps 0x80(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 8 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + pxor \TMP1, \TMP4 +# accumulate the results in TMP4:XMM5, TMP6 holds the middle part + pxor \XMM7, \XMM5 + pxor \TMP2, \TMP6 + + # Multiply XMM8 * HashKey + # XMM8 and TMP5 hold the values for the two operands + + movdqa \XMM8, \TMP1 + pshufd $78, \XMM8, \TMP2 + pxor \XMM8, \TMP2 + movdqu HashKey(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 + movaps 0x90(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 9 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + PCLMULQDQ 0x00, \TMP5, \XMM8 # XMM8 = a0*b0 + lea 0xa0(%arg1),%r10 + mov keysize,%eax + shr $2,%eax # 128->4, 192->6, 256->8 + sub $4,%eax # 128->0, 192->2, 256->4 + jz aes_loop_par_enc_done\@ + +aes_loop_par_enc\@: + MOVADQ (%r10),\TMP3 +.irpc index, 1234 + AESENC \TMP3, %xmm\index +.endr + add $16,%r10 + sub $1,%eax + jnz aes_loop_par_enc\@ + +aes_loop_par_enc_done\@: + MOVADQ (%r10), \TMP3 + AESENCLAST \TMP3, \XMM1 # Round 10 + AESENCLAST \TMP3, \XMM2 + AESENCLAST \TMP3, \XMM3 + AESENCLAST \TMP3, \XMM4 + movdqu HashKey_k(%arg2), \TMP5 + PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + movdqu (%arg4,%r11,1), \TMP3 + pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK + movdqu 16(%arg4,%r11,1), \TMP3 + pxor \TMP3, \XMM2 # Ciphertext/Plaintext XOR EK + movdqu 32(%arg4,%r11,1), \TMP3 + pxor \TMP3, \XMM3 # Ciphertext/Plaintext XOR EK + movdqu 48(%arg4,%r11,1), \TMP3 + pxor \TMP3, \XMM4 # Ciphertext/Plaintext XOR EK + movdqu \XMM1, (%arg3,%r11,1) # Write to the ciphertext buffer + movdqu \XMM2, 16(%arg3,%r11,1) # Write to the ciphertext buffer + movdqu \XMM3, 32(%arg3,%r11,1) # Write to the ciphertext buffer + movdqu \XMM4, 48(%arg3,%r11,1) # Write to the ciphertext buffer + PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap + + pxor \TMP4, \TMP1 + pxor \XMM8, \XMM5 + pxor \TMP6, \TMP2 + pxor \TMP1, \TMP2 + pxor \XMM5, \TMP2 + movdqa \TMP2, \TMP3 + pslldq $8, \TMP3 # left shift TMP3 2 DWs + psrldq $8, \TMP2 # right shift TMP2 2 DWs + pxor \TMP3, \XMM5 + pxor \TMP2, \TMP1 # accumulate the results in TMP1:XMM5 + + # first phase of reduction + + movdqa \XMM5, \TMP2 + movdqa \XMM5, \TMP3 + movdqa \XMM5, \TMP4 +# move XMM5 into TMP2, TMP3, TMP4 in order to perform shifts independently + pslld $31, \TMP2 # packed right shift << 31 + pslld $30, \TMP3 # packed right shift << 30 + pslld $25, \TMP4 # packed right shift << 25 + pxor \TMP3, \TMP2 # xor the shifted versions + pxor \TMP4, \TMP2 + movdqa \TMP2, \TMP5 + psrldq $4, \TMP5 # right shift T5 1 DW + pslldq $12, \TMP2 # left shift T2 3 DWs + pxor \TMP2, \XMM5 + + # second phase of reduction + + movdqa \XMM5,\TMP2 # make 3 copies of XMM5 into TMP2, TMP3, TMP4 + movdqa \XMM5,\TMP3 + movdqa \XMM5,\TMP4 + psrld $1, \TMP2 # packed left shift >>1 + psrld $2, \TMP3 # packed left shift >>2 + psrld $7, \TMP4 # packed left shift >>7 + pxor \TMP3,\TMP2 # xor the shifted versions + pxor \TMP4,\TMP2 + pxor \TMP5, \TMP2 + pxor \TMP2, \XMM5 + pxor \TMP1, \XMM5 # result is in TMP1 + + pxor \XMM5, \XMM1 +.endm + +/* +* decrypt 4 blocks at a time +* ghash the 4 previously decrypted ciphertext blocks +* arg1, %arg3, %arg4 are used as pointers only, not modified +* %r11 is the data offset value +*/ +.macro GHASH_4_ENCRYPT_4_PARALLEL_dec TMP1 TMP2 TMP3 TMP4 TMP5 \ +TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation + + movdqa \XMM1, \XMM5 + movdqa \XMM2, \XMM6 + movdqa \XMM3, \XMM7 + movdqa \XMM4, \XMM8 + + movdqa SHUF_MASK(%rip), %xmm15 + # multiply TMP5 * HashKey using karatsuba + + movdqa \XMM5, \TMP4 + pshufd $78, \XMM5, \TMP6 + pxor \XMM5, \TMP6 + paddd ONE(%rip), \XMM0 # INCR CNT + movdqu HashKey_4(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1 + movdqa \XMM0, \XMM1 + paddd ONE(%rip), \XMM0 # INCR CNT + movdqa \XMM0, \XMM2 + paddd ONE(%rip), \XMM0 # INCR CNT + movdqa \XMM0, \XMM3 + paddd ONE(%rip), \XMM0 # INCR CNT + movdqa \XMM0, \XMM4 + PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap + PCLMULQDQ 0x00, \TMP5, \XMM5 # XMM5 = a0*b0 + PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap + + pxor (%arg1), \XMM1 + pxor (%arg1), \XMM2 + pxor (%arg1), \XMM3 + pxor (%arg1), \XMM4 + movdqu HashKey_4_k(%arg2), \TMP5 + PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0) + movaps 0x10(%arg1), \TMP1 + AESENC \TMP1, \XMM1 # Round 1 + AESENC \TMP1, \XMM2 + AESENC \TMP1, \XMM3 + AESENC \TMP1, \XMM4 + movaps 0x20(%arg1), \TMP1 + AESENC \TMP1, \XMM1 # Round 2 + AESENC \TMP1, \XMM2 + AESENC \TMP1, \XMM3 + AESENC \TMP1, \XMM4 + movdqa \XMM6, \TMP1 + pshufd $78, \XMM6, \TMP2 + pxor \XMM6, \TMP2 + movdqu HashKey_3(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1 + movaps 0x30(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 3 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + PCLMULQDQ 0x00, \TMP5, \XMM6 # XMM6 = a0*b0 + movaps 0x40(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 4 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + movdqu HashKey_3_k(%arg2), \TMP5 + PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + movaps 0x50(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 5 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + pxor \TMP1, \TMP4 +# accumulate the results in TMP4:XMM5, TMP6 holds the middle part + pxor \XMM6, \XMM5 + pxor \TMP2, \TMP6 + movdqa \XMM7, \TMP1 + pshufd $78, \XMM7, \TMP2 + pxor \XMM7, \TMP2 + movdqu HashKey_2(%arg2), \TMP5 + + # Multiply TMP5 * HashKey using karatsuba + + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 + movaps 0x60(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 6 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + PCLMULQDQ 0x00, \TMP5, \XMM7 # XMM7 = a0*b0 + movaps 0x70(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 7 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + movdqu HashKey_2_k(%arg2), \TMP5 + PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + movaps 0x80(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 8 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + pxor \TMP1, \TMP4 +# accumulate the results in TMP4:XMM5, TMP6 holds the middle part + pxor \XMM7, \XMM5 + pxor \TMP2, \TMP6 + + # Multiply XMM8 * HashKey + # XMM8 and TMP5 hold the values for the two operands + + movdqa \XMM8, \TMP1 + pshufd $78, \XMM8, \TMP2 + pxor \XMM8, \TMP2 + movdqu HashKey(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 + movaps 0x90(%arg1), \TMP3 + AESENC \TMP3, \XMM1 # Round 9 + AESENC \TMP3, \XMM2 + AESENC \TMP3, \XMM3 + AESENC \TMP3, \XMM4 + PCLMULQDQ 0x00, \TMP5, \XMM8 # XMM8 = a0*b0 + lea 0xa0(%arg1),%r10 + mov keysize,%eax + shr $2,%eax # 128->4, 192->6, 256->8 + sub $4,%eax # 128->0, 192->2, 256->4 + jz aes_loop_par_dec_done\@ + +aes_loop_par_dec\@: + MOVADQ (%r10),\TMP3 +.irpc index, 1234 + AESENC \TMP3, %xmm\index +.endr + add $16,%r10 + sub $1,%eax + jnz aes_loop_par_dec\@ + +aes_loop_par_dec_done\@: + MOVADQ (%r10), \TMP3 + AESENCLAST \TMP3, \XMM1 # last round + AESENCLAST \TMP3, \XMM2 + AESENCLAST \TMP3, \XMM3 + AESENCLAST \TMP3, \XMM4 + movdqu HashKey_k(%arg2), \TMP5 + PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + movdqu (%arg4,%r11,1), \TMP3 + pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK + movdqu \XMM1, (%arg3,%r11,1) # Write to plaintext buffer + movdqa \TMP3, \XMM1 + movdqu 16(%arg4,%r11,1), \TMP3 + pxor \TMP3, \XMM2 # Ciphertext/Plaintext XOR EK + movdqu \XMM2, 16(%arg3,%r11,1) # Write to plaintext buffer + movdqa \TMP3, \XMM2 + movdqu 32(%arg4,%r11,1), \TMP3 + pxor \TMP3, \XMM3 # Ciphertext/Plaintext XOR EK + movdqu \XMM3, 32(%arg3,%r11,1) # Write to plaintext buffer + movdqa \TMP3, \XMM3 + movdqu 48(%arg4,%r11,1), \TMP3 + pxor \TMP3, \XMM4 # Ciphertext/Plaintext XOR EK + movdqu \XMM4, 48(%arg3,%r11,1) # Write to plaintext buffer + movdqa \TMP3, \XMM4 + PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap + PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap + + pxor \TMP4, \TMP1 + pxor \XMM8, \XMM5 + pxor \TMP6, \TMP2 + pxor \TMP1, \TMP2 + pxor \XMM5, \TMP2 + movdqa \TMP2, \TMP3 + pslldq $8, \TMP3 # left shift TMP3 2 DWs + psrldq $8, \TMP2 # right shift TMP2 2 DWs + pxor \TMP3, \XMM5 + pxor \TMP2, \TMP1 # accumulate the results in TMP1:XMM5 + + # first phase of reduction + + movdqa \XMM5, \TMP2 + movdqa \XMM5, \TMP3 + movdqa \XMM5, \TMP4 +# move XMM5 into TMP2, TMP3, TMP4 in order to perform shifts independently + pslld $31, \TMP2 # packed right shift << 31 + pslld $30, \TMP3 # packed right shift << 30 + pslld $25, \TMP4 # packed right shift << 25 + pxor \TMP3, \TMP2 # xor the shifted versions + pxor \TMP4, \TMP2 + movdqa \TMP2, \TMP5 + psrldq $4, \TMP5 # right shift T5 1 DW + pslldq $12, \TMP2 # left shift T2 3 DWs + pxor \TMP2, \XMM5 + + # second phase of reduction + + movdqa \XMM5,\TMP2 # make 3 copies of XMM5 into TMP2, TMP3, TMP4 + movdqa \XMM5,\TMP3 + movdqa \XMM5,\TMP4 + psrld $1, \TMP2 # packed left shift >>1 + psrld $2, \TMP3 # packed left shift >>2 + psrld $7, \TMP4 # packed left shift >>7 + pxor \TMP3,\TMP2 # xor the shifted versions + pxor \TMP4,\TMP2 + pxor \TMP5, \TMP2 + pxor \TMP2, \XMM5 + pxor \TMP1, \XMM5 # result is in TMP1 + + pxor \XMM5, \XMM1 +.endm + +/* GHASH the last 4 ciphertext blocks. */ +.macro GHASH_LAST_4 TMP1 TMP2 TMP3 TMP4 TMP5 TMP6 \ +TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst + + # Multiply TMP6 * HashKey (using Karatsuba) + + movdqa \XMM1, \TMP6 + pshufd $78, \XMM1, \TMP2 + pxor \XMM1, \TMP2 + movdqu HashKey_4(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP6 # TMP6 = a1*b1 + PCLMULQDQ 0x00, \TMP5, \XMM1 # XMM1 = a0*b0 + movdqu HashKey_4_k(%arg2), \TMP4 + PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + movdqa \XMM1, \XMMDst + movdqa \TMP2, \XMM1 # result in TMP6, XMMDst, XMM1 + + # Multiply TMP1 * HashKey (using Karatsuba) + + movdqa \XMM2, \TMP1 + pshufd $78, \XMM2, \TMP2 + pxor \XMM2, \TMP2 + movdqu HashKey_3(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 + PCLMULQDQ 0x00, \TMP5, \XMM2 # XMM2 = a0*b0 + movdqu HashKey_3_k(%arg2), \TMP4 + PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + pxor \TMP1, \TMP6 + pxor \XMM2, \XMMDst + pxor \TMP2, \XMM1 +# results accumulated in TMP6, XMMDst, XMM1 + + # Multiply TMP1 * HashKey (using Karatsuba) + + movdqa \XMM3, \TMP1 + pshufd $78, \XMM3, \TMP2 + pxor \XMM3, \TMP2 + movdqu HashKey_2(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 + PCLMULQDQ 0x00, \TMP5, \XMM3 # XMM3 = a0*b0 + movdqu HashKey_2_k(%arg2), \TMP4 + PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + pxor \TMP1, \TMP6 + pxor \XMM3, \XMMDst + pxor \TMP2, \XMM1 # results accumulated in TMP6, XMMDst, XMM1 + + # Multiply TMP1 * HashKey (using Karatsuba) + movdqa \XMM4, \TMP1 + pshufd $78, \XMM4, \TMP2 + pxor \XMM4, \TMP2 + movdqu HashKey(%arg2), \TMP5 + PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 + PCLMULQDQ 0x00, \TMP5, \XMM4 # XMM4 = a0*b0 + movdqu HashKey_k(%arg2), \TMP4 + PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) + pxor \TMP1, \TMP6 + pxor \XMM4, \XMMDst + pxor \XMM1, \TMP2 + pxor \TMP6, \TMP2 + pxor \XMMDst, \TMP2 + # middle section of the temp results combined as in karatsuba algorithm + movdqa \TMP2, \TMP4 + pslldq $8, \TMP4 # left shift TMP4 2 DWs + psrldq $8, \TMP2 # right shift TMP2 2 DWs + pxor \TMP4, \XMMDst + pxor \TMP2, \TMP6 +# TMP6:XMMDst holds the result of the accumulated carry-less multiplications + # first phase of the reduction + movdqa \XMMDst, \TMP2 + movdqa \XMMDst, \TMP3 + movdqa \XMMDst, \TMP4 +# move XMMDst into TMP2, TMP3, TMP4 in order to perform 3 shifts independently + pslld $31, \TMP2 # packed right shifting << 31 + pslld $30, \TMP3 # packed right shifting << 30 + pslld $25, \TMP4 # packed right shifting << 25 + pxor \TMP3, \TMP2 # xor the shifted versions + pxor \TMP4, \TMP2 + movdqa \TMP2, \TMP7 + psrldq $4, \TMP7 # right shift TMP7 1 DW + pslldq $12, \TMP2 # left shift TMP2 3 DWs + pxor \TMP2, \XMMDst + + # second phase of the reduction + movdqa \XMMDst, \TMP2 + # make 3 copies of XMMDst for doing 3 shift operations + movdqa \XMMDst, \TMP3 + movdqa \XMMDst, \TMP4 + psrld $1, \TMP2 # packed left shift >> 1 + psrld $2, \TMP3 # packed left shift >> 2 + psrld $7, \TMP4 # packed left shift >> 7 + pxor \TMP3, \TMP2 # xor the shifted versions + pxor \TMP4, \TMP2 + pxor \TMP7, \TMP2 + pxor \TMP2, \XMMDst + pxor \TMP6, \XMMDst # reduced result is in XMMDst +.endm + + +/* Encryption of a single block +* uses eax & r10 +*/ + +.macro ENCRYPT_SINGLE_BLOCK XMM0 TMP1 + + pxor (%arg1), \XMM0 + mov keysize,%eax + shr $2,%eax # 128->4, 192->6, 256->8 + add $5,%eax # 128->9, 192->11, 256->13 + lea 16(%arg1), %r10 # get first expanded key address + +_esb_loop_\@: + MOVADQ (%r10),\TMP1 + AESENC \TMP1,\XMM0 + add $16,%r10 + sub $1,%eax + jnz _esb_loop_\@ + + MOVADQ (%r10),\TMP1 + AESENCLAST \TMP1,\XMM0 +.endm +/***************************************************************************** +* void aesni_gcm_dec(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary. +* struct gcm_context_data *data +* // Context data +* u8 *out, // Plaintext output. Encrypt in-place is allowed. +* const u8 *in, // Ciphertext input +* u64 plaintext_len, // Length of data in bytes for decryption. +* u8 *iv, // Pre-counter block j0: 4 byte salt (from Security Association) +* // concatenated with 8 byte Initialisation Vector (from IPSec ESP Payload) +* // concatenated with 0x00000001. 16-byte aligned pointer. +* u8 *hash_subkey, // H, the Hash sub key input. Data starts on a 16-byte boundary. +* const u8 *aad, // Additional Authentication Data (AAD) +* u64 aad_len, // Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 bytes +* u8 *auth_tag, // Authenticated Tag output. The driver will compare this to the +* // given authentication tag and only return the plaintext if they match. +* u64 auth_tag_len); // Authenticated Tag Length in bytes. Valid values are 16 +* // (most likely), 12 or 8. +* +* Assumptions: +* +* keys: +* keys are pre-expanded and aligned to 16 bytes. we are using the first +* set of 11 keys in the data structure void *aes_ctx +* +* iv: +* 0 1 2 3 +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | Salt (From the SA) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | Initialization Vector | +* | (This is the sequence number from IPSec header) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 0x1 | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* +* +* +* AAD: +* AAD padded to 128 bits with 0 +* for example, assume AAD is a u32 vector +* +* if AAD is 8 bytes: +* AAD[3] = {A0, A1}; +* padded AAD in xmm register = {A1 A0 0 0} +* +* 0 1 2 3 +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | SPI (A1) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 32-bit Sequence Number (A0) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 0x0 | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* +* AAD Format with 32-bit Sequence Number +* +* if AAD is 12 bytes: +* AAD[3] = {A0, A1, A2}; +* padded AAD in xmm register = {A2 A1 A0 0} +* +* 0 1 2 3 +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | SPI (A2) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 64-bit Extended Sequence Number {A1,A0} | +* | | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 0x0 | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* +* AAD Format with 64-bit Extended Sequence Number +* +* poly = x^128 + x^127 + x^126 + x^121 + 1 +* +*****************************************************************************/ +ENTRY(aesni_gcm_dec) + FUNC_SAVE + + GCM_INIT %arg6, arg7, arg8, arg9 + GCM_ENC_DEC dec + GCM_COMPLETE arg10, arg11 + FUNC_RESTORE + ret +ENDPROC(aesni_gcm_dec) + + +/***************************************************************************** +* void aesni_gcm_enc(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary. +* struct gcm_context_data *data +* // Context data +* u8 *out, // Ciphertext output. Encrypt in-place is allowed. +* const u8 *in, // Plaintext input +* u64 plaintext_len, // Length of data in bytes for encryption. +* u8 *iv, // Pre-counter block j0: 4 byte salt (from Security Association) +* // concatenated with 8 byte Initialisation Vector (from IPSec ESP Payload) +* // concatenated with 0x00000001. 16-byte aligned pointer. +* u8 *hash_subkey, // H, the Hash sub key input. Data starts on a 16-byte boundary. +* const u8 *aad, // Additional Authentication Data (AAD) +* u64 aad_len, // Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 bytes +* u8 *auth_tag, // Authenticated Tag output. +* u64 auth_tag_len); // Authenticated Tag Length in bytes. Valid values are 16 (most likely), +* // 12 or 8. +* +* Assumptions: +* +* keys: +* keys are pre-expanded and aligned to 16 bytes. we are using the +* first set of 11 keys in the data structure void *aes_ctx +* +* +* iv: +* 0 1 2 3 +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | Salt (From the SA) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | Initialization Vector | +* | (This is the sequence number from IPSec header) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 0x1 | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* +* +* +* AAD: +* AAD padded to 128 bits with 0 +* for example, assume AAD is a u32 vector +* +* if AAD is 8 bytes: +* AAD[3] = {A0, A1}; +* padded AAD in xmm register = {A1 A0 0 0} +* +* 0 1 2 3 +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | SPI (A1) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 32-bit Sequence Number (A0) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 0x0 | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* +* AAD Format with 32-bit Sequence Number +* +* if AAD is 12 bytes: +* AAD[3] = {A0, A1, A2}; +* padded AAD in xmm register = {A2 A1 A0 0} +* +* 0 1 2 3 +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | SPI (A2) | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 64-bit Extended Sequence Number {A1,A0} | +* | | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* | 0x0 | +* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +* +* AAD Format with 64-bit Extended Sequence Number +* +* poly = x^128 + x^127 + x^126 + x^121 + 1 +***************************************************************************/ +ENTRY(aesni_gcm_enc) + FUNC_SAVE + + GCM_INIT %arg6, arg7, arg8, arg9 + GCM_ENC_DEC enc + + GCM_COMPLETE arg10, arg11 + FUNC_RESTORE + ret +ENDPROC(aesni_gcm_enc) + +/***************************************************************************** +* void aesni_gcm_init(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary. +* struct gcm_context_data *data, +* // context data +* u8 *iv, // Pre-counter block j0: 4 byte salt (from Security Association) +* // concatenated with 8 byte Initialisation Vector (from IPSec ESP Payload) +* // concatenated with 0x00000001. 16-byte aligned pointer. +* u8 *hash_subkey, // H, the Hash sub key input. Data starts on a 16-byte boundary. +* const u8 *aad, // Additional Authentication Data (AAD) +* u64 aad_len) // Length of AAD in bytes. +*/ +ENTRY(aesni_gcm_init) + FUNC_SAVE + GCM_INIT %arg3, %arg4,%arg5, %arg6 + FUNC_RESTORE + ret +ENDPROC(aesni_gcm_init) + +/***************************************************************************** +* void aesni_gcm_enc_update(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary. +* struct gcm_context_data *data, +* // context data +* u8 *out, // Ciphertext output. Encrypt in-place is allowed. +* const u8 *in, // Plaintext input +* u64 plaintext_len, // Length of data in bytes for encryption. +*/ +ENTRY(aesni_gcm_enc_update) + FUNC_SAVE + GCM_ENC_DEC enc + FUNC_RESTORE + ret +ENDPROC(aesni_gcm_enc_update) + +/***************************************************************************** +* void aesni_gcm_dec_update(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary. +* struct gcm_context_data *data, +* // context data +* u8 *out, // Ciphertext output. Encrypt in-place is allowed. +* const u8 *in, // Plaintext input +* u64 plaintext_len, // Length of data in bytes for encryption. +*/ +ENTRY(aesni_gcm_dec_update) + FUNC_SAVE + GCM_ENC_DEC dec + FUNC_RESTORE + ret +ENDPROC(aesni_gcm_dec_update) + +/***************************************************************************** +* void aesni_gcm_finalize(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary. +* struct gcm_context_data *data, +* // context data +* u8 *auth_tag, // Authenticated Tag output. +* u64 auth_tag_len); // Authenticated Tag Length in bytes. Valid values are 16 (most likely), +* // 12 or 8. +*/ +ENTRY(aesni_gcm_finalize) + FUNC_SAVE + GCM_COMPLETE %arg3 %arg4 + FUNC_RESTORE + ret +ENDPROC(aesni_gcm_finalize) + +#endif + + +.align 4 +_key_expansion_128: +_key_expansion_256a: + pshufd $0b11111111, %xmm1, %xmm1 + shufps $0b00010000, %xmm0, %xmm4 + pxor %xmm4, %xmm0 + shufps $0b10001100, %xmm0, %xmm4 + pxor %xmm4, %xmm0 + pxor %xmm1, %xmm0 + movaps %xmm0, (TKEYP) + add $0x10, TKEYP + ret +ENDPROC(_key_expansion_128) +ENDPROC(_key_expansion_256a) + +.align 4 +_key_expansion_192a: + pshufd $0b01010101, %xmm1, %xmm1 + shufps $0b00010000, %xmm0, %xmm4 + pxor %xmm4, %xmm0 + shufps $0b10001100, %xmm0, %xmm4 + pxor %xmm4, %xmm0 + pxor %xmm1, %xmm0 + + movaps %xmm2, %xmm5 + movaps %xmm2, %xmm6 + pslldq $4, %xmm5 + pshufd $0b11111111, %xmm0, %xmm3 + pxor %xmm3, %xmm2 + pxor %xmm5, %xmm2 + + movaps %xmm0, %xmm1 + shufps $0b01000100, %xmm0, %xmm6 + movaps %xmm6, (TKEYP) + shufps $0b01001110, %xmm2, %xmm1 + movaps %xmm1, 0x10(TKEYP) + add $0x20, TKEYP + ret +ENDPROC(_key_expansion_192a) + +.align 4 +_key_expansion_192b: + pshufd $0b01010101, %xmm1, %xmm1 + shufps $0b00010000, %xmm0, %xmm4 + pxor %xmm4, %xmm0 + shufps $0b10001100, %xmm0, %xmm4 + pxor %xmm4, %xmm0 + pxor %xmm1, %xmm0 + + movaps %xmm2, %xmm5 + pslldq $4, %xmm5 + pshufd $0b11111111, %xmm0, %xmm3 + pxor %xmm3, %xmm2 + pxor %xmm5, %xmm2 + + movaps %xmm0, (TKEYP) + add $0x10, TKEYP + ret +ENDPROC(_key_expansion_192b) + +.align 4 +_key_expansion_256b: + pshufd $0b10101010, %xmm1, %xmm1 + shufps $0b00010000, %xmm2, %xmm4 + pxor %xmm4, %xmm2 + shufps $0b10001100, %xmm2, %xmm4 + pxor %xmm4, %xmm2 + pxor %xmm1, %xmm2 + movaps %xmm2, (TKEYP) + add $0x10, TKEYP + ret +ENDPROC(_key_expansion_256b) + +/* + * int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key, + * unsigned int key_len) + */ +ENTRY(aesni_set_key) + FRAME_BEGIN +#ifndef __x86_64__ + pushl KEYP + movl (FRAME_OFFSET+8)(%esp), KEYP # ctx + movl (FRAME_OFFSET+12)(%esp), UKEYP # in_key + movl (FRAME_OFFSET+16)(%esp), %edx # key_len +#endif + movups (UKEYP), %xmm0 # user key (first 16 bytes) + movaps %xmm0, (KEYP) + lea 0x10(KEYP), TKEYP # key addr + movl %edx, 480(KEYP) + pxor %xmm4, %xmm4 # xmm4 is assumed 0 in _key_expansion_x + cmp $24, %dl + jb .Lenc_key128 + je .Lenc_key192 + movups 0x10(UKEYP), %xmm2 # other user key + movaps %xmm2, (TKEYP) + add $0x10, TKEYP + AESKEYGENASSIST 0x1 %xmm2 %xmm1 # round 1 + call _key_expansion_256a + AESKEYGENASSIST 0x1 %xmm0 %xmm1 + call _key_expansion_256b + AESKEYGENASSIST 0x2 %xmm2 %xmm1 # round 2 + call _key_expansion_256a + AESKEYGENASSIST 0x2 %xmm0 %xmm1 + call _key_expansion_256b + AESKEYGENASSIST 0x4 %xmm2 %xmm1 # round 3 + call _key_expansion_256a + AESKEYGENASSIST 0x4 %xmm0 %xmm1 + call _key_expansion_256b + AESKEYGENASSIST 0x8 %xmm2 %xmm1 # round 4 + call _key_expansion_256a + AESKEYGENASSIST 0x8 %xmm0 %xmm1 + call _key_expansion_256b + AESKEYGENASSIST 0x10 %xmm2 %xmm1 # round 5 + call _key_expansion_256a + AESKEYGENASSIST 0x10 %xmm0 %xmm1 + call _key_expansion_256b + AESKEYGENASSIST 0x20 %xmm2 %xmm1 # round 6 + call _key_expansion_256a + AESKEYGENASSIST 0x20 %xmm0 %xmm1 + call _key_expansion_256b + AESKEYGENASSIST 0x40 %xmm2 %xmm1 # round 7 + call _key_expansion_256a + jmp .Ldec_key +.Lenc_key192: + movq 0x10(UKEYP), %xmm2 # other user key + AESKEYGENASSIST 0x1 %xmm2 %xmm1 # round 1 + call _key_expansion_192a + AESKEYGENASSIST 0x2 %xmm2 %xmm1 # round 2 + call _key_expansion_192b + AESKEYGENASSIST 0x4 %xmm2 %xmm1 # round 3 + call _key_expansion_192a + AESKEYGENASSIST 0x8 %xmm2 %xmm1 # round 4 + call _key_expansion_192b + AESKEYGENASSIST 0x10 %xmm2 %xmm1 # round 5 + call _key_expansion_192a + AESKEYGENASSIST 0x20 %xmm2 %xmm1 # round 6 + call _key_expansion_192b + AESKEYGENASSIST 0x40 %xmm2 %xmm1 # round 7 + call _key_expansion_192a + AESKEYGENASSIST 0x80 %xmm2 %xmm1 # round 8 + call _key_expansion_192b + jmp .Ldec_key +.Lenc_key128: + AESKEYGENASSIST 0x1 %xmm0 %xmm1 # round 1 + call _key_expansion_128 + AESKEYGENASSIST 0x2 %xmm0 %xmm1 # round 2 + call _key_expansion_128 + AESKEYGENASSIST 0x4 %xmm0 %xmm1 # round 3 + call _key_expansion_128 + AESKEYGENASSIST 0x8 %xmm0 %xmm1 # round 4 + call _key_expansion_128 + AESKEYGENASSIST 0x10 %xmm0 %xmm1 # round 5 + call _key_expansion_128 + AESKEYGENASSIST 0x20 %xmm0 %xmm1 # round 6 + call _key_expansion_128 + AESKEYGENASSIST 0x40 %xmm0 %xmm1 # round 7 + call _key_expansion_128 + AESKEYGENASSIST 0x80 %xmm0 %xmm1 # round 8 + call _key_expansion_128 + AESKEYGENASSIST 0x1b %xmm0 %xmm1 # round 9 + call _key_expansion_128 + AESKEYGENASSIST 0x36 %xmm0 %xmm1 # round 10 + call _key_expansion_128 +.Ldec_key: + sub $0x10, TKEYP + movaps (KEYP), %xmm0 + movaps (TKEYP), %xmm1 + movaps %xmm0, 240(TKEYP) + movaps %xmm1, 240(KEYP) + add $0x10, KEYP + lea 240-16(TKEYP), UKEYP +.align 4 +.Ldec_key_loop: + movaps (KEYP), %xmm0 + AESIMC %xmm0 %xmm1 + movaps %xmm1, (UKEYP) + add $0x10, KEYP + sub $0x10, UKEYP + cmp TKEYP, KEYP + jb .Ldec_key_loop + xor AREG, AREG +#ifndef __x86_64__ + popl KEYP +#endif + FRAME_END + ret +ENDPROC(aesni_set_key) + +/* + * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src) + */ +ENTRY(aesni_enc) + FRAME_BEGIN +#ifndef __x86_64__ + pushl KEYP + pushl KLEN + movl (FRAME_OFFSET+12)(%esp), KEYP # ctx + movl (FRAME_OFFSET+16)(%esp), OUTP # dst + movl (FRAME_OFFSET+20)(%esp), INP # src +#endif + movl 480(KEYP), KLEN # key length + movups (INP), STATE # input + call _aesni_enc1 + movups STATE, (OUTP) # output +#ifndef __x86_64__ + popl KLEN + popl KEYP +#endif + FRAME_END + ret +ENDPROC(aesni_enc) + +/* + * _aesni_enc1: internal ABI + * input: + * KEYP: key struct pointer + * KLEN: round count + * STATE: initial state (input) + * output: + * STATE: finial state (output) + * changed: + * KEY + * TKEYP (T1) + */ +.align 4 +_aesni_enc1: + movaps (KEYP), KEY # key + mov KEYP, TKEYP + pxor KEY, STATE # round 0 + add $0x30, TKEYP + cmp $24, KLEN + jb .Lenc128 + lea 0x20(TKEYP), TKEYP + je .Lenc192 + add $0x20, TKEYP + movaps -0x60(TKEYP), KEY + AESENC KEY STATE + movaps -0x50(TKEYP), KEY + AESENC KEY STATE +.align 4 +.Lenc192: + movaps -0x40(TKEYP), KEY + AESENC KEY STATE + movaps -0x30(TKEYP), KEY + AESENC KEY STATE +.align 4 +.Lenc128: + movaps -0x20(TKEYP), KEY + AESENC KEY STATE + movaps -0x10(TKEYP), KEY + AESENC KEY STATE + movaps (TKEYP), KEY + AESENC KEY STATE + movaps 0x10(TKEYP), KEY + AESENC KEY STATE + movaps 0x20(TKEYP), KEY + AESENC KEY STATE + movaps 0x30(TKEYP), KEY + AESENC KEY STATE + movaps 0x40(TKEYP), KEY + AESENC KEY STATE + movaps 0x50(TKEYP), KEY + AESENC KEY STATE + movaps 0x60(TKEYP), KEY + AESENC KEY STATE + movaps 0x70(TKEYP), KEY + AESENCLAST KEY STATE + ret +ENDPROC(_aesni_enc1) + +/* + * _aesni_enc4: internal ABI + * input: + * KEYP: key struct pointer + * KLEN: round count + * STATE1: initial state (input) + * STATE2 + * STATE3 + * STATE4 + * output: + * STATE1: finial state (output) + * STATE2 + * STATE3 + * STATE4 + * changed: + * KEY + * TKEYP (T1) + */ +.align 4 +_aesni_enc4: + movaps (KEYP), KEY # key + mov KEYP, TKEYP + pxor KEY, STATE1 # round 0 + pxor KEY, STATE2 + pxor KEY, STATE3 + pxor KEY, STATE4 + add $0x30, TKEYP + cmp $24, KLEN + jb .L4enc128 + lea 0x20(TKEYP), TKEYP + je .L4enc192 + add $0x20, TKEYP + movaps -0x60(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps -0x50(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 +#.align 4 +.L4enc192: + movaps -0x40(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps -0x30(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 +#.align 4 +.L4enc128: + movaps -0x20(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps -0x10(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps (TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps 0x10(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps 0x20(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps 0x30(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps 0x40(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps 0x50(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps 0x60(TKEYP), KEY + AESENC KEY STATE1 + AESENC KEY STATE2 + AESENC KEY STATE3 + AESENC KEY STATE4 + movaps 0x70(TKEYP), KEY + AESENCLAST KEY STATE1 # last round + AESENCLAST KEY STATE2 + AESENCLAST KEY STATE3 + AESENCLAST KEY STATE4 + ret +ENDPROC(_aesni_enc4) + +/* + * void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src) + */ +ENTRY(aesni_dec) + FRAME_BEGIN +#ifndef __x86_64__ + pushl KEYP + pushl KLEN + movl (FRAME_OFFSET+12)(%esp), KEYP # ctx + movl (FRAME_OFFSET+16)(%esp), OUTP # dst + movl (FRAME_OFFSET+20)(%esp), INP # src +#endif + mov 480(KEYP), KLEN # key length + add $240, KEYP + movups (INP), STATE # input + call _aesni_dec1 + movups STATE, (OUTP) #output +#ifndef __x86_64__ + popl KLEN + popl KEYP +#endif + FRAME_END + ret +ENDPROC(aesni_dec) + +/* + * _aesni_dec1: internal ABI + * input: + * KEYP: key struct pointer + * KLEN: key length + * STATE: initial state (input) + * output: + * STATE: finial state (output) + * changed: + * KEY + * TKEYP (T1) + */ +.align 4 +_aesni_dec1: + movaps (KEYP), KEY # key + mov KEYP, TKEYP + pxor KEY, STATE # round 0 + add $0x30, TKEYP + cmp $24, KLEN + jb .Ldec128 + lea 0x20(TKEYP), TKEYP + je .Ldec192 + add $0x20, TKEYP + movaps -0x60(TKEYP), KEY + AESDEC KEY STATE + movaps -0x50(TKEYP), KEY + AESDEC KEY STATE +.align 4 +.Ldec192: + movaps -0x40(TKEYP), KEY + AESDEC KEY STATE + movaps -0x30(TKEYP), KEY + AESDEC KEY STATE +.align 4 +.Ldec128: + movaps -0x20(TKEYP), KEY + AESDEC KEY STATE + movaps -0x10(TKEYP), KEY + AESDEC KEY STATE + movaps (TKEYP), KEY + AESDEC KEY STATE + movaps 0x10(TKEYP), KEY + AESDEC KEY STATE + movaps 0x20(TKEYP), KEY + AESDEC KEY STATE + movaps 0x30(TKEYP), KEY + AESDEC KEY STATE + movaps 0x40(TKEYP), KEY + AESDEC KEY STATE + movaps 0x50(TKEYP), KEY + AESDEC KEY STATE + movaps 0x60(TKEYP), KEY + AESDEC KEY STATE + movaps 0x70(TKEYP), KEY + AESDECLAST KEY STATE + ret +ENDPROC(_aesni_dec1) + +/* + * _aesni_dec4: internal ABI + * input: + * KEYP: key struct pointer + * KLEN: key length + * STATE1: initial state (input) + * STATE2 + * STATE3 + * STATE4 + * output: + * STATE1: finial state (output) + * STATE2 + * STATE3 + * STATE4 + * changed: + * KEY + * TKEYP (T1) + */ +.align 4 +_aesni_dec4: + movaps (KEYP), KEY # key + mov KEYP, TKEYP + pxor KEY, STATE1 # round 0 + pxor KEY, STATE2 + pxor KEY, STATE3 + pxor KEY, STATE4 + add $0x30, TKEYP + cmp $24, KLEN + jb .L4dec128 + lea 0x20(TKEYP), TKEYP + je .L4dec192 + add $0x20, TKEYP + movaps -0x60(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps -0x50(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 +.align 4 +.L4dec192: + movaps -0x40(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps -0x30(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 +.align 4 +.L4dec128: + movaps -0x20(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps -0x10(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps (TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps 0x10(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps 0x20(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps 0x30(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps 0x40(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps 0x50(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps 0x60(TKEYP), KEY + AESDEC KEY STATE1 + AESDEC KEY STATE2 + AESDEC KEY STATE3 + AESDEC KEY STATE4 + movaps 0x70(TKEYP), KEY + AESDECLAST KEY STATE1 # last round + AESDECLAST KEY STATE2 + AESDECLAST KEY STATE3 + AESDECLAST KEY STATE4 + ret +ENDPROC(_aesni_dec4) + +/* + * void aesni_ecb_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, + * size_t len) + */ +ENTRY(aesni_ecb_enc) + FRAME_BEGIN +#ifndef __x86_64__ + pushl LEN + pushl KEYP + pushl KLEN + movl (FRAME_OFFSET+16)(%esp), KEYP # ctx + movl (FRAME_OFFSET+20)(%esp), OUTP # dst + movl (FRAME_OFFSET+24)(%esp), INP # src + movl (FRAME_OFFSET+28)(%esp), LEN # len +#endif + test LEN, LEN # check length + jz .Lecb_enc_ret + mov 480(KEYP), KLEN + cmp $16, LEN + jb .Lecb_enc_ret + cmp $64, LEN + jb .Lecb_enc_loop1 +.align 4 +.Lecb_enc_loop4: + movups (INP), STATE1 + movups 0x10(INP), STATE2 + movups 0x20(INP), STATE3 + movups 0x30(INP), STATE4 + call _aesni_enc4 + movups STATE1, (OUTP) + movups STATE2, 0x10(OUTP) + movups STATE3, 0x20(OUTP) + movups STATE4, 0x30(OUTP) + sub $64, LEN + add $64, INP + add $64, OUTP + cmp $64, LEN + jge .Lecb_enc_loop4 + cmp $16, LEN + jb .Lecb_enc_ret +.align 4 +.Lecb_enc_loop1: + movups (INP), STATE1 + call _aesni_enc1 + movups STATE1, (OUTP) + sub $16, LEN + add $16, INP + add $16, OUTP + cmp $16, LEN + jge .Lecb_enc_loop1 +.Lecb_enc_ret: +#ifndef __x86_64__ + popl KLEN + popl KEYP + popl LEN +#endif + FRAME_END + ret +ENDPROC(aesni_ecb_enc) + +/* + * void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, + * size_t len); + */ +ENTRY(aesni_ecb_dec) + FRAME_BEGIN +#ifndef __x86_64__ + pushl LEN + pushl KEYP + pushl KLEN + movl (FRAME_OFFSET+16)(%esp), KEYP # ctx + movl (FRAME_OFFSET+20)(%esp), OUTP # dst + movl (FRAME_OFFSET+24)(%esp), INP # src + movl (FRAME_OFFSET+28)(%esp), LEN # len +#endif + test LEN, LEN + jz .Lecb_dec_ret + mov 480(KEYP), KLEN + add $240, KEYP + cmp $16, LEN + jb .Lecb_dec_ret + cmp $64, LEN + jb .Lecb_dec_loop1 +.align 4 +.Lecb_dec_loop4: + movups (INP), STATE1 + movups 0x10(INP), STATE2 + movups 0x20(INP), STATE3 + movups 0x30(INP), STATE4 + call _aesni_dec4 + movups STATE1, (OUTP) + movups STATE2, 0x10(OUTP) + movups STATE3, 0x20(OUTP) + movups STATE4, 0x30(OUTP) + sub $64, LEN + add $64, INP + add $64, OUTP + cmp $64, LEN + jge .Lecb_dec_loop4 + cmp $16, LEN + jb .Lecb_dec_ret +.align 4 +.Lecb_dec_loop1: + movups (INP), STATE1 + call _aesni_dec1 + movups STATE1, (OUTP) + sub $16, LEN + add $16, INP + add $16, OUTP + cmp $16, LEN + jge .Lecb_dec_loop1 +.Lecb_dec_ret: +#ifndef __x86_64__ + popl KLEN + popl KEYP + popl LEN +#endif + FRAME_END + ret +ENDPROC(aesni_ecb_dec) + +/* + * void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, + * size_t len, u8 *iv) + */ +ENTRY(aesni_cbc_enc) + FRAME_BEGIN +#ifndef __x86_64__ + pushl IVP + pushl LEN + pushl KEYP + pushl KLEN + movl (FRAME_OFFSET+20)(%esp), KEYP # ctx + movl (FRAME_OFFSET+24)(%esp), OUTP # dst + movl (FRAME_OFFSET+28)(%esp), INP # src + movl (FRAME_OFFSET+32)(%esp), LEN # len + movl (FRAME_OFFSET+36)(%esp), IVP # iv +#endif + cmp $16, LEN + jb .Lcbc_enc_ret + mov 480(KEYP), KLEN + movups (IVP), STATE # load iv as initial state +.align 4 +.Lcbc_enc_loop: + movups (INP), IN # load input + pxor IN, STATE + call _aesni_enc1 + movups STATE, (OUTP) # store output + sub $16, LEN + add $16, INP + add $16, OUTP + cmp $16, LEN + jge .Lcbc_enc_loop + movups STATE, (IVP) +.Lcbc_enc_ret: +#ifndef __x86_64__ + popl KLEN + popl KEYP + popl LEN + popl IVP +#endif + FRAME_END + ret +ENDPROC(aesni_cbc_enc) + +/* + * void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, + * size_t len, u8 *iv) + */ +ENTRY(aesni_cbc_dec) + FRAME_BEGIN +#ifndef __x86_64__ + pushl IVP + pushl LEN + pushl KEYP + pushl KLEN + movl (FRAME_OFFSET+20)(%esp), KEYP # ctx + movl (FRAME_OFFSET+24)(%esp), OUTP # dst + movl (FRAME_OFFSET+28)(%esp), INP # src + movl (FRAME_OFFSET+32)(%esp), LEN # len + movl (FRAME_OFFSET+36)(%esp), IVP # iv +#endif + cmp $16, LEN + jb .Lcbc_dec_just_ret + mov 480(KEYP), KLEN + add $240, KEYP + movups (IVP), IV + cmp $64, LEN + jb .Lcbc_dec_loop1 +.align 4 +.Lcbc_dec_loop4: + movups (INP), IN1 + movaps IN1, STATE1 + movups 0x10(INP), IN2 + movaps IN2, STATE2 +#ifdef __x86_64__ + movups 0x20(INP), IN3 + movaps IN3, STATE3 + movups 0x30(INP), IN4 + movaps IN4, STATE4 +#else + movups 0x20(INP), IN1 + movaps IN1, STATE3 + movups 0x30(INP), IN2 + movaps IN2, STATE4 +#endif + call _aesni_dec4 + pxor IV, STATE1 +#ifdef __x86_64__ + pxor IN1, STATE2 + pxor IN2, STATE3 + pxor IN3, STATE4 + movaps IN4, IV +#else + pxor IN1, STATE4 + movaps IN2, IV + movups (INP), IN1 + pxor IN1, STATE2 + movups 0x10(INP), IN2 + pxor IN2, STATE3 +#endif + movups STATE1, (OUTP) + movups STATE2, 0x10(OUTP) + movups STATE3, 0x20(OUTP) + movups STATE4, 0x30(OUTP) + sub $64, LEN + add $64, INP + add $64, OUTP + cmp $64, LEN + jge .Lcbc_dec_loop4 + cmp $16, LEN + jb .Lcbc_dec_ret +.align 4 +.Lcbc_dec_loop1: + movups (INP), IN + movaps IN, STATE + call _aesni_dec1 + pxor IV, STATE + movups STATE, (OUTP) + movaps IN, IV + sub $16, LEN + add $16, INP + add $16, OUTP + cmp $16, LEN + jge .Lcbc_dec_loop1 +.Lcbc_dec_ret: + movups IV, (IVP) +.Lcbc_dec_just_ret: +#ifndef __x86_64__ + popl KLEN + popl KEYP + popl LEN + popl IVP +#endif + FRAME_END + ret +ENDPROC(aesni_cbc_dec) + +#ifdef __x86_64__ +.pushsection .rodata +.align 16 +.Lbswap_mask: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 +.popsection + +/* + * _aesni_inc_init: internal ABI + * setup registers used by _aesni_inc + * input: + * IV + * output: + * CTR: == IV, in little endian + * TCTR_LOW: == lower qword of CTR + * INC: == 1, in little endian + * BSWAP_MASK == endian swapping mask + */ +.align 4 +_aesni_inc_init: + movaps .Lbswap_mask, BSWAP_MASK + movaps IV, CTR + PSHUFB_XMM BSWAP_MASK CTR + mov $1, TCTR_LOW + MOVQ_R64_XMM TCTR_LOW INC + MOVQ_R64_XMM CTR TCTR_LOW + ret +ENDPROC(_aesni_inc_init) + +/* + * _aesni_inc: internal ABI + * Increase IV by 1, IV is in big endian + * input: + * IV + * CTR: == IV, in little endian + * TCTR_LOW: == lower qword of CTR + * INC: == 1, in little endian + * BSWAP_MASK == endian swapping mask + * output: + * IV: Increase by 1 + * changed: + * CTR: == output IV, in little endian + * TCTR_LOW: == lower qword of CTR + */ +.align 4 +_aesni_inc: + paddq INC, CTR + add $1, TCTR_LOW + jnc .Linc_low + pslldq $8, INC + paddq INC, CTR + psrldq $8, INC +.Linc_low: + movaps CTR, IV + PSHUFB_XMM BSWAP_MASK IV + ret +ENDPROC(_aesni_inc) + +/* + * void aesni_ctr_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, + * size_t len, u8 *iv) + */ +ENTRY(aesni_ctr_enc) + FRAME_BEGIN + cmp $16, LEN + jb .Lctr_enc_just_ret + mov 480(KEYP), KLEN + movups (IVP), IV + call _aesni_inc_init + cmp $64, LEN + jb .Lctr_enc_loop1 +.align 4 +.Lctr_enc_loop4: + movaps IV, STATE1 + call _aesni_inc + movups (INP), IN1 + movaps IV, STATE2 + call _aesni_inc + movups 0x10(INP), IN2 + movaps IV, STATE3 + call _aesni_inc + movups 0x20(INP), IN3 + movaps IV, STATE4 + call _aesni_inc + movups 0x30(INP), IN4 + call _aesni_enc4 + pxor IN1, STATE1 + movups STATE1, (OUTP) + pxor IN2, STATE2 + movups STATE2, 0x10(OUTP) + pxor IN3, STATE3 + movups STATE3, 0x20(OUTP) + pxor IN4, STATE4 + movups STATE4, 0x30(OUTP) + sub $64, LEN + add $64, INP + add $64, OUTP + cmp $64, LEN + jge .Lctr_enc_loop4 + cmp $16, LEN + jb .Lctr_enc_ret +.align 4 +.Lctr_enc_loop1: + movaps IV, STATE + call _aesni_inc + movups (INP), IN + call _aesni_enc1 + pxor IN, STATE + movups STATE, (OUTP) + sub $16, LEN + add $16, INP + add $16, OUTP + cmp $16, LEN + jge .Lctr_enc_loop1 +.Lctr_enc_ret: + movups IV, (IVP) +.Lctr_enc_just_ret: + FRAME_END + ret +ENDPROC(aesni_ctr_enc) + +/* + * _aesni_gf128mul_x_ble: internal ABI + * Multiply in GF(2^128) for XTS IVs + * input: + * IV: current IV + * GF128MUL_MASK == mask with 0x87 and 0x01 + * output: + * IV: next IV + * changed: + * CTR: == temporary value + */ +#define _aesni_gf128mul_x_ble() \ + pshufd $0x13, IV, CTR; \ + paddq IV, IV; \ + psrad $31, CTR; \ + pand GF128MUL_MASK, CTR; \ + pxor CTR, IV; + +/* + * void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src, + * bool enc, u8 *iv) + */ +ENTRY(aesni_xts_crypt8) + FRAME_BEGIN + cmpb $0, %cl + movl $0, %ecx + movl $240, %r10d + leaq _aesni_enc4, %r11 + leaq _aesni_dec4, %rax + cmovel %r10d, %ecx + cmoveq %rax, %r11 + + movdqa .Lgf128mul_x_ble_mask, GF128MUL_MASK + movups (IVP), IV + + mov 480(KEYP), KLEN + addq %rcx, KEYP + + movdqa IV, STATE1 + movdqu 0x00(INP), INC + pxor INC, STATE1 + movdqu IV, 0x00(OUTP) + + _aesni_gf128mul_x_ble() + movdqa IV, STATE2 + movdqu 0x10(INP), INC + pxor INC, STATE2 + movdqu IV, 0x10(OUTP) + + _aesni_gf128mul_x_ble() + movdqa IV, STATE3 + movdqu 0x20(INP), INC + pxor INC, STATE3 + movdqu IV, 0x20(OUTP) + + _aesni_gf128mul_x_ble() + movdqa IV, STATE4 + movdqu 0x30(INP), INC + pxor INC, STATE4 + movdqu IV, 0x30(OUTP) + + CALL_NOSPEC %r11 + + movdqu 0x00(OUTP), INC + pxor INC, STATE1 + movdqu STATE1, 0x00(OUTP) + + _aesni_gf128mul_x_ble() + movdqa IV, STATE1 + movdqu 0x40(INP), INC + pxor INC, STATE1 + movdqu IV, 0x40(OUTP) + + movdqu 0x10(OUTP), INC + pxor INC, STATE2 + movdqu STATE2, 0x10(OUTP) + + _aesni_gf128mul_x_ble() + movdqa IV, STATE2 + movdqu 0x50(INP), INC + pxor INC, STATE2 + movdqu IV, 0x50(OUTP) + + movdqu 0x20(OUTP), INC + pxor INC, STATE3 + movdqu STATE3, 0x20(OUTP) + + _aesni_gf128mul_x_ble() + movdqa IV, STATE3 + movdqu 0x60(INP), INC + pxor INC, STATE3 + movdqu IV, 0x60(OUTP) + + movdqu 0x30(OUTP), INC + pxor INC, STATE4 + movdqu STATE4, 0x30(OUTP) + + _aesni_gf128mul_x_ble() + movdqa IV, STATE4 + movdqu 0x70(INP), INC + pxor INC, STATE4 + movdqu IV, 0x70(OUTP) + + _aesni_gf128mul_x_ble() + movups IV, (IVP) + + CALL_NOSPEC %r11 + + movdqu 0x40(OUTP), INC + pxor INC, STATE1 + movdqu STATE1, 0x40(OUTP) + + movdqu 0x50(OUTP), INC + pxor INC, STATE2 + movdqu STATE2, 0x50(OUTP) + + movdqu 0x60(OUTP), INC + pxor INC, STATE3 + movdqu STATE3, 0x60(OUTP) + + movdqu 0x70(OUTP), INC + pxor INC, STATE4 + movdqu STATE4, 0x70(OUTP) + + FRAME_END + ret +ENDPROC(aesni_xts_crypt8) + +#endif diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S new file mode 100644 index 000000000..1985ea0b5 --- /dev/null +++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S @@ -0,0 +1,2946 @@ +######################################################################## +# Copyright (c) 2013, Intel Corporation +# +# This software is available to you under a choice of one of two +# licenses. You may choose to be licensed under the terms of the GNU +# General Public License (GPL) Version 2, available from the file +# COPYING in the main directory of this source tree, or the +# OpenIB.org BSD license below: +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the +# distribution. +# +# * Neither the name of the Intel Corporation nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# +# THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY +# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES# LOSS OF USE, DATA, OR +# PROFITS# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +######################################################################## +## +## Authors: +## Erdinc Ozturk <erdinc.ozturk@intel.com> +## Vinodh Gopal <vinodh.gopal@intel.com> +## James Guilford <james.guilford@intel.com> +## Tim Chen <tim.c.chen@linux.intel.com> +## +## References: +## This code was derived and highly optimized from the code described in paper: +## Vinodh Gopal et. al. Optimized Galois-Counter-Mode Implementation +## on Intel Architecture Processors. August, 2010 +## The details of the implementation is explained in: +## Erdinc Ozturk et. al. Enabling High-Performance Galois-Counter-Mode +## on Intel Architecture Processors. October, 2012. +## +## Assumptions: +## +## +## +## iv: +## 0 1 2 3 +## 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | Salt (From the SA) | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | Initialization Vector | +## | (This is the sequence number from IPSec header) | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | 0x1 | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## +## +## +## AAD: +## AAD padded to 128 bits with 0 +## for example, assume AAD is a u32 vector +## +## if AAD is 8 bytes: +## AAD[3] = {A0, A1}# +## padded AAD in xmm register = {A1 A0 0 0} +## +## 0 1 2 3 +## 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | SPI (A1) | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | 32-bit Sequence Number (A0) | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | 0x0 | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## +## AAD Format with 32-bit Sequence Number +## +## if AAD is 12 bytes: +## AAD[3] = {A0, A1, A2}# +## padded AAD in xmm register = {A2 A1 A0 0} +## +## 0 1 2 3 +## 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | SPI (A2) | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | 64-bit Extended Sequence Number {A1,A0} | +## | | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## | 0x0 | +## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +## +## AAD Format with 64-bit Extended Sequence Number +## +## +## aadLen: +## from the definition of the spec, aadLen can only be 8 or 12 bytes. +## The code additionally supports aadLen of length 16 bytes. +## +## TLen: +## from the definition of the spec, TLen can only be 8, 12 or 16 bytes. +## +## poly = x^128 + x^127 + x^126 + x^121 + 1 +## throughout the code, one tab and two tab indentations are used. one tab is +## for GHASH part, two tabs is for AES part. +## + +#include <linux/linkage.h> +#include <asm/inst.h> + +# constants in mergeable sections, linker can reorder and merge +.section .rodata.cst16.POLY, "aM", @progbits, 16 +.align 16 +POLY: .octa 0xC2000000000000000000000000000001 + +.section .rodata.cst16.POLY2, "aM", @progbits, 16 +.align 16 +POLY2: .octa 0xC20000000000000000000001C2000000 + +.section .rodata.cst16.TWOONE, "aM", @progbits, 16 +.align 16 +TWOONE: .octa 0x00000001000000000000000000000001 + +.section .rodata.cst16.SHUF_MASK, "aM", @progbits, 16 +.align 16 +SHUF_MASK: .octa 0x000102030405060708090A0B0C0D0E0F + +.section .rodata.cst16.ONE, "aM", @progbits, 16 +.align 16 +ONE: .octa 0x00000000000000000000000000000001 + +.section .rodata.cst16.ONEf, "aM", @progbits, 16 +.align 16 +ONEf: .octa 0x01000000000000000000000000000000 + +# order of these constants should not change. +# more specifically, ALL_F should follow SHIFT_MASK, and zero should follow ALL_F +.section .rodata, "a", @progbits +.align 16 +SHIFT_MASK: .octa 0x0f0e0d0c0b0a09080706050403020100 +ALL_F: .octa 0xffffffffffffffffffffffffffffffff + .octa 0x00000000000000000000000000000000 + +.section .rodata +.align 16 +.type aad_shift_arr, @object +.size aad_shift_arr, 272 +aad_shift_arr: + .octa 0xffffffffffffffffffffffffffffffff + .octa 0xffffffffffffffffffffffffffffff0C + .octa 0xffffffffffffffffffffffffffff0D0C + .octa 0xffffffffffffffffffffffffff0E0D0C + .octa 0xffffffffffffffffffffffff0F0E0D0C + .octa 0xffffffffffffffffffffff0C0B0A0908 + .octa 0xffffffffffffffffffff0D0C0B0A0908 + .octa 0xffffffffffffffffff0E0D0C0B0A0908 + .octa 0xffffffffffffffff0F0E0D0C0B0A0908 + .octa 0xffffffffffffff0C0B0A090807060504 + .octa 0xffffffffffff0D0C0B0A090807060504 + .octa 0xffffffffff0E0D0C0B0A090807060504 + .octa 0xffffffff0F0E0D0C0B0A090807060504 + .octa 0xffffff0C0B0A09080706050403020100 + .octa 0xffff0D0C0B0A09080706050403020100 + .octa 0xff0E0D0C0B0A09080706050403020100 + .octa 0x0F0E0D0C0B0A09080706050403020100 + + +.text + + +##define the fields of the gcm aes context +#{ +# u8 expanded_keys[16*11] store expanded keys +# u8 shifted_hkey_1[16] store HashKey <<1 mod poly here +# u8 shifted_hkey_2[16] store HashKey^2 <<1 mod poly here +# u8 shifted_hkey_3[16] store HashKey^3 <<1 mod poly here +# u8 shifted_hkey_4[16] store HashKey^4 <<1 mod poly here +# u8 shifted_hkey_5[16] store HashKey^5 <<1 mod poly here +# u8 shifted_hkey_6[16] store HashKey^6 <<1 mod poly here +# u8 shifted_hkey_7[16] store HashKey^7 <<1 mod poly here +# u8 shifted_hkey_8[16] store HashKey^8 <<1 mod poly here +# u8 shifted_hkey_1_k[16] store XOR HashKey <<1 mod poly here (for Karatsuba purposes) +# u8 shifted_hkey_2_k[16] store XOR HashKey^2 <<1 mod poly here (for Karatsuba purposes) +# u8 shifted_hkey_3_k[16] store XOR HashKey^3 <<1 mod poly here (for Karatsuba purposes) +# u8 shifted_hkey_4_k[16] store XOR HashKey^4 <<1 mod poly here (for Karatsuba purposes) +# u8 shifted_hkey_5_k[16] store XOR HashKey^5 <<1 mod poly here (for Karatsuba purposes) +# u8 shifted_hkey_6_k[16] store XOR HashKey^6 <<1 mod poly here (for Karatsuba purposes) +# u8 shifted_hkey_7_k[16] store XOR HashKey^7 <<1 mod poly here (for Karatsuba purposes) +# u8 shifted_hkey_8_k[16] store XOR HashKey^8 <<1 mod poly here (for Karatsuba purposes) +#} gcm_ctx# + +HashKey = 16*11 # store HashKey <<1 mod poly here +HashKey_2 = 16*12 # store HashKey^2 <<1 mod poly here +HashKey_3 = 16*13 # store HashKey^3 <<1 mod poly here +HashKey_4 = 16*14 # store HashKey^4 <<1 mod poly here +HashKey_5 = 16*15 # store HashKey^5 <<1 mod poly here +HashKey_6 = 16*16 # store HashKey^6 <<1 mod poly here +HashKey_7 = 16*17 # store HashKey^7 <<1 mod poly here +HashKey_8 = 16*18 # store HashKey^8 <<1 mod poly here +HashKey_k = 16*19 # store XOR of HashKey <<1 mod poly here (for Karatsuba purposes) +HashKey_2_k = 16*20 # store XOR of HashKey^2 <<1 mod poly here (for Karatsuba purposes) +HashKey_3_k = 16*21 # store XOR of HashKey^3 <<1 mod poly here (for Karatsuba purposes) +HashKey_4_k = 16*22 # store XOR of HashKey^4 <<1 mod poly here (for Karatsuba purposes) +HashKey_5_k = 16*23 # store XOR of HashKey^5 <<1 mod poly here (for Karatsuba purposes) +HashKey_6_k = 16*24 # store XOR of HashKey^6 <<1 mod poly here (for Karatsuba purposes) +HashKey_7_k = 16*25 # store XOR of HashKey^7 <<1 mod poly here (for Karatsuba purposes) +HashKey_8_k = 16*26 # store XOR of HashKey^8 <<1 mod poly here (for Karatsuba purposes) + +#define arg1 %rdi +#define arg2 %rsi +#define arg3 %rdx +#define arg4 %rcx +#define arg5 %r8 +#define arg6 %r9 +#define arg7 STACK_OFFSET+8*1(%r14) +#define arg8 STACK_OFFSET+8*2(%r14) +#define arg9 STACK_OFFSET+8*3(%r14) + +i = 0 +j = 0 + +out_order = 0 +in_order = 1 +DEC = 0 +ENC = 1 + +.macro define_reg r n +reg_\r = %xmm\n +.endm + +.macro setreg +.altmacro +define_reg i %i +define_reg j %j +.noaltmacro +.endm + +# need to push 4 registers into stack to maintain +STACK_OFFSET = 8*4 + +TMP1 = 16*0 # Temporary storage for AAD +TMP2 = 16*1 # Temporary storage for AES State 2 (State 1 is stored in an XMM register) +TMP3 = 16*2 # Temporary storage for AES State 3 +TMP4 = 16*3 # Temporary storage for AES State 4 +TMP5 = 16*4 # Temporary storage for AES State 5 +TMP6 = 16*5 # Temporary storage for AES State 6 +TMP7 = 16*6 # Temporary storage for AES State 7 +TMP8 = 16*7 # Temporary storage for AES State 8 + +VARIABLE_OFFSET = 16*8 + +################################ +# Utility Macros +################################ + +# Encryption of a single block +.macro ENCRYPT_SINGLE_BLOCK XMM0 + vpxor (arg1), \XMM0, \XMM0 + i = 1 + setreg +.rep 9 + vaesenc 16*i(arg1), \XMM0, \XMM0 + i = (i+1) + setreg +.endr + vaesenclast 16*10(arg1), \XMM0, \XMM0 +.endm + +#ifdef CONFIG_AS_AVX +############################################################################### +# GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0) +# Input: A and B (128-bits each, bit-reflected) +# Output: C = A*B*x mod poly, (i.e. >>1 ) +# To compute GH = GH*HashKey mod poly, give HK = HashKey<<1 mod poly as input +# GH = GH * HK * x mod poly which is equivalent to GH*HashKey mod poly. +############################################################################### +.macro GHASH_MUL_AVX GH HK T1 T2 T3 T4 T5 + + vpshufd $0b01001110, \GH, \T2 + vpshufd $0b01001110, \HK, \T3 + vpxor \GH , \T2, \T2 # T2 = (a1+a0) + vpxor \HK , \T3, \T3 # T3 = (b1+b0) + + vpclmulqdq $0x11, \HK, \GH, \T1 # T1 = a1*b1 + vpclmulqdq $0x00, \HK, \GH, \GH # GH = a0*b0 + vpclmulqdq $0x00, \T3, \T2, \T2 # T2 = (a1+a0)*(b1+b0) + vpxor \GH, \T2,\T2 + vpxor \T1, \T2,\T2 # T2 = a0*b1+a1*b0 + + vpslldq $8, \T2,\T3 # shift-L T3 2 DWs + vpsrldq $8, \T2,\T2 # shift-R T2 2 DWs + vpxor \T3, \GH, \GH + vpxor \T2, \T1, \T1 # <T1:GH> = GH x HK + + #first phase of the reduction + vpslld $31, \GH, \T2 # packed right shifting << 31 + vpslld $30, \GH, \T3 # packed right shifting shift << 30 + vpslld $25, \GH, \T4 # packed right shifting shift << 25 + + vpxor \T3, \T2, \T2 # xor the shifted versions + vpxor \T4, \T2, \T2 + + vpsrldq $4, \T2, \T5 # shift-R T5 1 DW + + vpslldq $12, \T2, \T2 # shift-L T2 3 DWs + vpxor \T2, \GH, \GH # first phase of the reduction complete + + #second phase of the reduction + + vpsrld $1,\GH, \T2 # packed left shifting >> 1 + vpsrld $2,\GH, \T3 # packed left shifting >> 2 + vpsrld $7,\GH, \T4 # packed left shifting >> 7 + vpxor \T3, \T2, \T2 # xor the shifted versions + vpxor \T4, \T2, \T2 + + vpxor \T5, \T2, \T2 + vpxor \T2, \GH, \GH + vpxor \T1, \GH, \GH # the result is in GH + + +.endm + +.macro PRECOMPUTE_AVX HK T1 T2 T3 T4 T5 T6 + + # Haskey_i_k holds XORed values of the low and high parts of the Haskey_i + vmovdqa \HK, \T5 + + vpshufd $0b01001110, \T5, \T1 + vpxor \T5, \T1, \T1 + vmovdqa \T1, HashKey_k(arg1) + + GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^2<<1 mod poly + vmovdqa \T5, HashKey_2(arg1) # [HashKey_2] = HashKey^2<<1 mod poly + vpshufd $0b01001110, \T5, \T1 + vpxor \T5, \T1, \T1 + vmovdqa \T1, HashKey_2_k(arg1) + + GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^3<<1 mod poly + vmovdqa \T5, HashKey_3(arg1) + vpshufd $0b01001110, \T5, \T1 + vpxor \T5, \T1, \T1 + vmovdqa \T1, HashKey_3_k(arg1) + + GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^4<<1 mod poly + vmovdqa \T5, HashKey_4(arg1) + vpshufd $0b01001110, \T5, \T1 + vpxor \T5, \T1, \T1 + vmovdqa \T1, HashKey_4_k(arg1) + + GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^5<<1 mod poly + vmovdqa \T5, HashKey_5(arg1) + vpshufd $0b01001110, \T5, \T1 + vpxor \T5, \T1, \T1 + vmovdqa \T1, HashKey_5_k(arg1) + + GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^6<<1 mod poly + vmovdqa \T5, HashKey_6(arg1) + vpshufd $0b01001110, \T5, \T1 + vpxor \T5, \T1, \T1 + vmovdqa \T1, HashKey_6_k(arg1) + + GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^7<<1 mod poly + vmovdqa \T5, HashKey_7(arg1) + vpshufd $0b01001110, \T5, \T1 + vpxor \T5, \T1, \T1 + vmovdqa \T1, HashKey_7_k(arg1) + + GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^8<<1 mod poly + vmovdqa \T5, HashKey_8(arg1) + vpshufd $0b01001110, \T5, \T1 + vpxor \T5, \T1, \T1 + vmovdqa \T1, HashKey_8_k(arg1) + +.endm + +## if a = number of total plaintext bytes +## b = floor(a/16) +## num_initial_blocks = b mod 4# +## encrypt the initial num_initial_blocks blocks and apply ghash on the ciphertext +## r10, r11, r12, rax are clobbered +## arg1, arg2, arg3, r14 are used as a pointer only, not modified + +.macro INITIAL_BLOCKS_AVX num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC + i = (8-\num_initial_blocks) + j = 0 + setreg + + mov arg6, %r10 # r10 = AAD + mov arg7, %r12 # r12 = aadLen + + + mov %r12, %r11 + + vpxor reg_j, reg_j, reg_j + vpxor reg_i, reg_i, reg_i + cmp $16, %r11 + jl _get_AAD_rest8\@ +_get_AAD_blocks\@: + vmovdqu (%r10), reg_i + vpshufb SHUF_MASK(%rip), reg_i, reg_i + vpxor reg_i, reg_j, reg_j + GHASH_MUL_AVX reg_j, \T2, \T1, \T3, \T4, \T5, \T6 + add $16, %r10 + sub $16, %r12 + sub $16, %r11 + cmp $16, %r11 + jge _get_AAD_blocks\@ + vmovdqu reg_j, reg_i + cmp $0, %r11 + je _get_AAD_done\@ + + vpxor reg_i, reg_i, reg_i + + /* read the last <16B of AAD. since we have at least 4B of + data right after the AAD (the ICV, and maybe some CT), we can + read 4B/8B blocks safely, and then get rid of the extra stuff */ +_get_AAD_rest8\@: + cmp $4, %r11 + jle _get_AAD_rest4\@ + movq (%r10), \T1 + add $8, %r10 + sub $8, %r11 + vpslldq $8, \T1, \T1 + vpsrldq $8, reg_i, reg_i + vpxor \T1, reg_i, reg_i + jmp _get_AAD_rest8\@ +_get_AAD_rest4\@: + cmp $0, %r11 + jle _get_AAD_rest0\@ + mov (%r10), %eax + movq %rax, \T1 + add $4, %r10 + sub $4, %r11 + vpslldq $12, \T1, \T1 + vpsrldq $4, reg_i, reg_i + vpxor \T1, reg_i, reg_i +_get_AAD_rest0\@: + /* finalize: shift out the extra bytes we read, and align + left. since pslldq can only shift by an immediate, we use + vpshufb and an array of shuffle masks */ + movq %r12, %r11 + salq $4, %r11 + movdqu aad_shift_arr(%r11), \T1 + vpshufb \T1, reg_i, reg_i +_get_AAD_rest_final\@: + vpshufb SHUF_MASK(%rip), reg_i, reg_i + vpxor reg_j, reg_i, reg_i + GHASH_MUL_AVX reg_i, \T2, \T1, \T3, \T4, \T5, \T6 + +_get_AAD_done\@: + # initialize the data pointer offset as zero + xor %r11d, %r11d + + # start AES for num_initial_blocks blocks + mov arg5, %rax # rax = *Y0 + vmovdqu (%rax), \CTR # CTR = Y0 + vpshufb SHUF_MASK(%rip), \CTR, \CTR + + + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, reg_i + vpshufb SHUF_MASK(%rip), reg_i, reg_i # perform a 16Byte swap + i = (i+1) + setreg +.endr + + vmovdqa (arg1), \T_key + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vpxor \T_key, reg_i, reg_i + i = (i+1) + setreg +.endr + + j = 1 + setreg +.rep 9 + vmovdqa 16*j(arg1), \T_key + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vaesenc \T_key, reg_i, reg_i + i = (i+1) + setreg +.endr + + j = (j+1) + setreg +.endr + + + vmovdqa 16*10(arg1), \T_key + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vaesenclast \T_key, reg_i, reg_i + i = (i+1) + setreg +.endr + + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vmovdqu (arg3, %r11), \T1 + vpxor \T1, reg_i, reg_i + vmovdqu reg_i, (arg2 , %r11) # write back ciphertext for num_initial_blocks blocks + add $16, %r11 +.if \ENC_DEC == DEC + vmovdqa \T1, reg_i +.endif + vpshufb SHUF_MASK(%rip), reg_i, reg_i # prepare ciphertext for GHASH computations + i = (i+1) + setreg +.endr + + + i = (8-\num_initial_blocks) + j = (9-\num_initial_blocks) + setreg + +.rep \num_initial_blocks + vpxor reg_i, reg_j, reg_j + GHASH_MUL_AVX reg_j, \T2, \T1, \T3, \T4, \T5, \T6 # apply GHASH on num_initial_blocks blocks + i = (i+1) + j = (j+1) + setreg +.endr + # XMM8 has the combined result here + + vmovdqa \XMM8, TMP1(%rsp) + vmovdqa \XMM8, \T3 + + cmp $128, %r13 + jl _initial_blocks_done\@ # no need for precomputed constants + +############################################################################### +# Haskey_i_k holds XORed values of the low and high parts of the Haskey_i + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM1 + vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM2 + vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM3 + vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM4 + vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM5 + vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM6 + vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM7 + vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM8 + vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap + + vmovdqa (arg1), \T_key + vpxor \T_key, \XMM1, \XMM1 + vpxor \T_key, \XMM2, \XMM2 + vpxor \T_key, \XMM3, \XMM3 + vpxor \T_key, \XMM4, \XMM4 + vpxor \T_key, \XMM5, \XMM5 + vpxor \T_key, \XMM6, \XMM6 + vpxor \T_key, \XMM7, \XMM7 + vpxor \T_key, \XMM8, \XMM8 + + i = 1 + setreg +.rep 9 # do 9 rounds + vmovdqa 16*i(arg1), \T_key + vaesenc \T_key, \XMM1, \XMM1 + vaesenc \T_key, \XMM2, \XMM2 + vaesenc \T_key, \XMM3, \XMM3 + vaesenc \T_key, \XMM4, \XMM4 + vaesenc \T_key, \XMM5, \XMM5 + vaesenc \T_key, \XMM6, \XMM6 + vaesenc \T_key, \XMM7, \XMM7 + vaesenc \T_key, \XMM8, \XMM8 + i = (i+1) + setreg +.endr + + + vmovdqa 16*i(arg1), \T_key + vaesenclast \T_key, \XMM1, \XMM1 + vaesenclast \T_key, \XMM2, \XMM2 + vaesenclast \T_key, \XMM3, \XMM3 + vaesenclast \T_key, \XMM4, \XMM4 + vaesenclast \T_key, \XMM5, \XMM5 + vaesenclast \T_key, \XMM6, \XMM6 + vaesenclast \T_key, \XMM7, \XMM7 + vaesenclast \T_key, \XMM8, \XMM8 + + vmovdqu (arg3, %r11), \T1 + vpxor \T1, \XMM1, \XMM1 + vmovdqu \XMM1, (arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM1 + .endif + + vmovdqu 16*1(arg3, %r11), \T1 + vpxor \T1, \XMM2, \XMM2 + vmovdqu \XMM2, 16*1(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM2 + .endif + + vmovdqu 16*2(arg3, %r11), \T1 + vpxor \T1, \XMM3, \XMM3 + vmovdqu \XMM3, 16*2(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM3 + .endif + + vmovdqu 16*3(arg3, %r11), \T1 + vpxor \T1, \XMM4, \XMM4 + vmovdqu \XMM4, 16*3(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM4 + .endif + + vmovdqu 16*4(arg3, %r11), \T1 + vpxor \T1, \XMM5, \XMM5 + vmovdqu \XMM5, 16*4(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM5 + .endif + + vmovdqu 16*5(arg3, %r11), \T1 + vpxor \T1, \XMM6, \XMM6 + vmovdqu \XMM6, 16*5(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM6 + .endif + + vmovdqu 16*6(arg3, %r11), \T1 + vpxor \T1, \XMM7, \XMM7 + vmovdqu \XMM7, 16*6(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM7 + .endif + + vmovdqu 16*7(arg3, %r11), \T1 + vpxor \T1, \XMM8, \XMM8 + vmovdqu \XMM8, 16*7(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM8 + .endif + + add $128, %r11 + + vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap + vpxor TMP1(%rsp), \XMM1, \XMM1 # combine GHASHed value with the corresponding ciphertext + vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap + +############################################################################### + +_initial_blocks_done\@: + +.endm + +# encrypt 8 blocks at a time +# ghash the 8 previously encrypted ciphertext blocks +# arg1, arg2, arg3 are used as pointers only, not modified +# r11 is the data offset value +.macro GHASH_8_ENCRYPT_8_PARALLEL_AVX T1 T2 T3 T4 T5 T6 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T7 loop_idx ENC_DEC + + vmovdqa \XMM1, \T2 + vmovdqa \XMM2, TMP2(%rsp) + vmovdqa \XMM3, TMP3(%rsp) + vmovdqa \XMM4, TMP4(%rsp) + vmovdqa \XMM5, TMP5(%rsp) + vmovdqa \XMM6, TMP6(%rsp) + vmovdqa \XMM7, TMP7(%rsp) + vmovdqa \XMM8, TMP8(%rsp) + +.if \loop_idx == in_order + vpaddd ONE(%rip), \CTR, \XMM1 # INCR CNT + vpaddd ONE(%rip), \XMM1, \XMM2 + vpaddd ONE(%rip), \XMM2, \XMM3 + vpaddd ONE(%rip), \XMM3, \XMM4 + vpaddd ONE(%rip), \XMM4, \XMM5 + vpaddd ONE(%rip), \XMM5, \XMM6 + vpaddd ONE(%rip), \XMM6, \XMM7 + vpaddd ONE(%rip), \XMM7, \XMM8 + vmovdqa \XMM8, \CTR + + vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap +.else + vpaddd ONEf(%rip), \CTR, \XMM1 # INCR CNT + vpaddd ONEf(%rip), \XMM1, \XMM2 + vpaddd ONEf(%rip), \XMM2, \XMM3 + vpaddd ONEf(%rip), \XMM3, \XMM4 + vpaddd ONEf(%rip), \XMM4, \XMM5 + vpaddd ONEf(%rip), \XMM5, \XMM6 + vpaddd ONEf(%rip), \XMM6, \XMM7 + vpaddd ONEf(%rip), \XMM7, \XMM8 + vmovdqa \XMM8, \CTR +.endif + + + ####################################################################### + + vmovdqu (arg1), \T1 + vpxor \T1, \XMM1, \XMM1 + vpxor \T1, \XMM2, \XMM2 + vpxor \T1, \XMM3, \XMM3 + vpxor \T1, \XMM4, \XMM4 + vpxor \T1, \XMM5, \XMM5 + vpxor \T1, \XMM6, \XMM6 + vpxor \T1, \XMM7, \XMM7 + vpxor \T1, \XMM8, \XMM8 + + ####################################################################### + + + + + + vmovdqu 16*1(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqu 16*2(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + + ####################################################################### + + vmovdqa HashKey_8(arg1), \T5 + vpclmulqdq $0x11, \T5, \T2, \T4 # T4 = a1*b1 + vpclmulqdq $0x00, \T5, \T2, \T7 # T7 = a0*b0 + + vpshufd $0b01001110, \T2, \T6 + vpxor \T2, \T6, \T6 + + vmovdqa HashKey_8_k(arg1), \T5 + vpclmulqdq $0x00, \T5, \T6, \T6 + + vmovdqu 16*3(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqa TMP2(%rsp), \T1 + vmovdqa HashKey_7(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpshufd $0b01001110, \T1, \T3 + vpxor \T1, \T3, \T3 + vmovdqa HashKey_7_k(arg1), \T5 + vpclmulqdq $0x10, \T5, \T3, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*4(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + ####################################################################### + + vmovdqa TMP3(%rsp), \T1 + vmovdqa HashKey_6(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpshufd $0b01001110, \T1, \T3 + vpxor \T1, \T3, \T3 + vmovdqa HashKey_6_k(arg1), \T5 + vpclmulqdq $0x10, \T5, \T3, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*5(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqa TMP4(%rsp), \T1 + vmovdqa HashKey_5(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpshufd $0b01001110, \T1, \T3 + vpxor \T1, \T3, \T3 + vmovdqa HashKey_5_k(arg1), \T5 + vpclmulqdq $0x10, \T5, \T3, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*6(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + + vmovdqa TMP5(%rsp), \T1 + vmovdqa HashKey_4(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpshufd $0b01001110, \T1, \T3 + vpxor \T1, \T3, \T3 + vmovdqa HashKey_4_k(arg1), \T5 + vpclmulqdq $0x10, \T5, \T3, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*7(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqa TMP6(%rsp), \T1 + vmovdqa HashKey_3(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpshufd $0b01001110, \T1, \T3 + vpxor \T1, \T3, \T3 + vmovdqa HashKey_3_k(arg1), \T5 + vpclmulqdq $0x10, \T5, \T3, \T3 + vpxor \T3, \T6, \T6 + + + vmovdqu 16*8(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqa TMP7(%rsp), \T1 + vmovdqa HashKey_2(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpshufd $0b01001110, \T1, \T3 + vpxor \T1, \T3, \T3 + vmovdqa HashKey_2_k(arg1), \T5 + vpclmulqdq $0x10, \T5, \T3, \T3 + vpxor \T3, \T6, \T6 + + ####################################################################### + + vmovdqu 16*9(arg1), \T5 + vaesenc \T5, \XMM1, \XMM1 + vaesenc \T5, \XMM2, \XMM2 + vaesenc \T5, \XMM3, \XMM3 + vaesenc \T5, \XMM4, \XMM4 + vaesenc \T5, \XMM5, \XMM5 + vaesenc \T5, \XMM6, \XMM6 + vaesenc \T5, \XMM7, \XMM7 + vaesenc \T5, \XMM8, \XMM8 + + vmovdqa TMP8(%rsp), \T1 + vmovdqa HashKey(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpshufd $0b01001110, \T1, \T3 + vpxor \T1, \T3, \T3 + vmovdqa HashKey_k(arg1), \T5 + vpclmulqdq $0x10, \T5, \T3, \T3 + vpxor \T3, \T6, \T6 + + vpxor \T4, \T6, \T6 + vpxor \T7, \T6, \T6 + + vmovdqu 16*10(arg1), \T5 + + i = 0 + j = 1 + setreg +.rep 8 + vpxor 16*i(arg3, %r11), \T5, \T2 + .if \ENC_DEC == ENC + vaesenclast \T2, reg_j, reg_j + .else + vaesenclast \T2, reg_j, \T3 + vmovdqu 16*i(arg3, %r11), reg_j + vmovdqu \T3, 16*i(arg2, %r11) + .endif + i = (i+1) + j = (j+1) + setreg +.endr + ####################################################################### + + + vpslldq $8, \T6, \T3 # shift-L T3 2 DWs + vpsrldq $8, \T6, \T6 # shift-R T2 2 DWs + vpxor \T3, \T7, \T7 + vpxor \T4, \T6, \T6 # accumulate the results in T6:T7 + + + + ####################################################################### + #first phase of the reduction + ####################################################################### + vpslld $31, \T7, \T2 # packed right shifting << 31 + vpslld $30, \T7, \T3 # packed right shifting shift << 30 + vpslld $25, \T7, \T4 # packed right shifting shift << 25 + + vpxor \T3, \T2, \T2 # xor the shifted versions + vpxor \T4, \T2, \T2 + + vpsrldq $4, \T2, \T1 # shift-R T1 1 DW + + vpslldq $12, \T2, \T2 # shift-L T2 3 DWs + vpxor \T2, \T7, \T7 # first phase of the reduction complete + ####################################################################### + .if \ENC_DEC == ENC + vmovdqu \XMM1, 16*0(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM2, 16*1(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM3, 16*2(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM4, 16*3(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM5, 16*4(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM6, 16*5(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM7, 16*6(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM8, 16*7(arg2,%r11) # Write to the Ciphertext buffer + .endif + + ####################################################################### + #second phase of the reduction + vpsrld $1, \T7, \T2 # packed left shifting >> 1 + vpsrld $2, \T7, \T3 # packed left shifting >> 2 + vpsrld $7, \T7, \T4 # packed left shifting >> 7 + vpxor \T3, \T2, \T2 # xor the shifted versions + vpxor \T4, \T2, \T2 + + vpxor \T1, \T2, \T2 + vpxor \T2, \T7, \T7 + vpxor \T7, \T6, \T6 # the result is in T6 + ####################################################################### + + vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap + + + vpxor \T6, \XMM1, \XMM1 + + + +.endm + + +# GHASH the last 4 ciphertext blocks. +.macro GHASH_LAST_8_AVX T1 T2 T3 T4 T5 T6 T7 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 + + ## Karatsuba Method + + + vpshufd $0b01001110, \XMM1, \T2 + vpxor \XMM1, \T2, \T2 + vmovdqa HashKey_8(arg1), \T5 + vpclmulqdq $0x11, \T5, \XMM1, \T6 + vpclmulqdq $0x00, \T5, \XMM1, \T7 + + vmovdqa HashKey_8_k(arg1), \T3 + vpclmulqdq $0x00, \T3, \T2, \XMM1 + + ###################### + + vpshufd $0b01001110, \XMM2, \T2 + vpxor \XMM2, \T2, \T2 + vmovdqa HashKey_7(arg1), \T5 + vpclmulqdq $0x11, \T5, \XMM2, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM2, \T4 + vpxor \T4, \T7, \T7 + + vmovdqa HashKey_7_k(arg1), \T3 + vpclmulqdq $0x00, \T3, \T2, \T2 + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vpshufd $0b01001110, \XMM3, \T2 + vpxor \XMM3, \T2, \T2 + vmovdqa HashKey_6(arg1), \T5 + vpclmulqdq $0x11, \T5, \XMM3, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM3, \T4 + vpxor \T4, \T7, \T7 + + vmovdqa HashKey_6_k(arg1), \T3 + vpclmulqdq $0x00, \T3, \T2, \T2 + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vpshufd $0b01001110, \XMM4, \T2 + vpxor \XMM4, \T2, \T2 + vmovdqa HashKey_5(arg1), \T5 + vpclmulqdq $0x11, \T5, \XMM4, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM4, \T4 + vpxor \T4, \T7, \T7 + + vmovdqa HashKey_5_k(arg1), \T3 + vpclmulqdq $0x00, \T3, \T2, \T2 + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vpshufd $0b01001110, \XMM5, \T2 + vpxor \XMM5, \T2, \T2 + vmovdqa HashKey_4(arg1), \T5 + vpclmulqdq $0x11, \T5, \XMM5, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM5, \T4 + vpxor \T4, \T7, \T7 + + vmovdqa HashKey_4_k(arg1), \T3 + vpclmulqdq $0x00, \T3, \T2, \T2 + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vpshufd $0b01001110, \XMM6, \T2 + vpxor \XMM6, \T2, \T2 + vmovdqa HashKey_3(arg1), \T5 + vpclmulqdq $0x11, \T5, \XMM6, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM6, \T4 + vpxor \T4, \T7, \T7 + + vmovdqa HashKey_3_k(arg1), \T3 + vpclmulqdq $0x00, \T3, \T2, \T2 + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vpshufd $0b01001110, \XMM7, \T2 + vpxor \XMM7, \T2, \T2 + vmovdqa HashKey_2(arg1), \T5 + vpclmulqdq $0x11, \T5, \XMM7, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM7, \T4 + vpxor \T4, \T7, \T7 + + vmovdqa HashKey_2_k(arg1), \T3 + vpclmulqdq $0x00, \T3, \T2, \T2 + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vpshufd $0b01001110, \XMM8, \T2 + vpxor \XMM8, \T2, \T2 + vmovdqa HashKey(arg1), \T5 + vpclmulqdq $0x11, \T5, \XMM8, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM8, \T4 + vpxor \T4, \T7, \T7 + + vmovdqa HashKey_k(arg1), \T3 + vpclmulqdq $0x00, \T3, \T2, \T2 + + vpxor \T2, \XMM1, \XMM1 + vpxor \T6, \XMM1, \XMM1 + vpxor \T7, \XMM1, \T2 + + + + + vpslldq $8, \T2, \T4 + vpsrldq $8, \T2, \T2 + + vpxor \T4, \T7, \T7 + vpxor \T2, \T6, \T6 # <T6:T7> holds the result of + # the accumulated carry-less multiplications + + ####################################################################### + #first phase of the reduction + vpslld $31, \T7, \T2 # packed right shifting << 31 + vpslld $30, \T7, \T3 # packed right shifting shift << 30 + vpslld $25, \T7, \T4 # packed right shifting shift << 25 + + vpxor \T3, \T2, \T2 # xor the shifted versions + vpxor \T4, \T2, \T2 + + vpsrldq $4, \T2, \T1 # shift-R T1 1 DW + + vpslldq $12, \T2, \T2 # shift-L T2 3 DWs + vpxor \T2, \T7, \T7 # first phase of the reduction complete + ####################################################################### + + + #second phase of the reduction + vpsrld $1, \T7, \T2 # packed left shifting >> 1 + vpsrld $2, \T7, \T3 # packed left shifting >> 2 + vpsrld $7, \T7, \T4 # packed left shifting >> 7 + vpxor \T3, \T2, \T2 # xor the shifted versions + vpxor \T4, \T2, \T2 + + vpxor \T1, \T2, \T2 + vpxor \T2, \T7, \T7 + vpxor \T7, \T6, \T6 # the result is in T6 + +.endm + + +# combined for GCM encrypt and decrypt functions +# clobbering all xmm registers +# clobbering r10, r11, r12, r13, r14, r15 +.macro GCM_ENC_DEC_AVX ENC_DEC + + #the number of pushes must equal STACK_OFFSET + push %r12 + push %r13 + push %r14 + push %r15 + + mov %rsp, %r14 + + + + + sub $VARIABLE_OFFSET, %rsp + and $~63, %rsp # align rsp to 64 bytes + + + vmovdqu HashKey(arg1), %xmm13 # xmm13 = HashKey + + mov arg4, %r13 # save the number of bytes of plaintext/ciphertext + and $-16, %r13 # r13 = r13 - (r13 mod 16) + + mov %r13, %r12 + shr $4, %r12 + and $7, %r12 + jz _initial_num_blocks_is_0\@ + + cmp $7, %r12 + je _initial_num_blocks_is_7\@ + cmp $6, %r12 + je _initial_num_blocks_is_6\@ + cmp $5, %r12 + je _initial_num_blocks_is_5\@ + cmp $4, %r12 + je _initial_num_blocks_is_4\@ + cmp $3, %r12 + je _initial_num_blocks_is_3\@ + cmp $2, %r12 + je _initial_num_blocks_is_2\@ + + jmp _initial_num_blocks_is_1\@ + +_initial_num_blocks_is_7\@: + INITIAL_BLOCKS_AVX 7, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*7, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_6\@: + INITIAL_BLOCKS_AVX 6, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*6, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_5\@: + INITIAL_BLOCKS_AVX 5, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*5, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_4\@: + INITIAL_BLOCKS_AVX 4, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*4, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_3\@: + INITIAL_BLOCKS_AVX 3, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*3, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_2\@: + INITIAL_BLOCKS_AVX 2, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*2, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_1\@: + INITIAL_BLOCKS_AVX 1, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*1, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_0\@: + INITIAL_BLOCKS_AVX 0, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + + +_initial_blocks_encrypted\@: + cmp $0, %r13 + je _zero_cipher_left\@ + + sub $128, %r13 + je _eight_cipher_left\@ + + + + + vmovd %xmm9, %r15d + and $255, %r15d + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + + +_encrypt_by_8_new\@: + cmp $(255-8), %r15d + jg _encrypt_by_8\@ + + + + add $8, %r15b + GHASH_8_ENCRYPT_8_PARALLEL_AVX %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, out_order, \ENC_DEC + add $128, %r11 + sub $128, %r13 + jne _encrypt_by_8_new\@ + + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + jmp _eight_cipher_left\@ + +_encrypt_by_8\@: + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + add $8, %r15b + GHASH_8_ENCRYPT_8_PARALLEL_AVX %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, in_order, \ENC_DEC + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + add $128, %r11 + sub $128, %r13 + jne _encrypt_by_8_new\@ + + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + + + + +_eight_cipher_left\@: + GHASH_LAST_8_AVX %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8 + + +_zero_cipher_left\@: + cmp $16, arg4 + jl _only_less_than_16\@ + + mov arg4, %r13 + and $15, %r13 # r13 = (arg4 mod 16) + + je _multiple_of_16_bytes\@ + + # handle the last <16 Byte block seperately + + + vpaddd ONE(%rip), %xmm9, %xmm9 # INCR CNT to get Yn + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + ENCRYPT_SINGLE_BLOCK %xmm9 # E(K, Yn) + + sub $16, %r11 + add %r13, %r11 + vmovdqu (arg3, %r11), %xmm1 # receive the last <16 Byte block + + lea SHIFT_MASK+16(%rip), %r12 + sub %r13, %r12 # adjust the shuffle mask pointer to be + # able to shift 16-r13 bytes (r13 is the + # number of bytes in plaintext mod 16) + vmovdqu (%r12), %xmm2 # get the appropriate shuffle mask + vpshufb %xmm2, %xmm1, %xmm1 # shift right 16-r13 bytes + jmp _final_ghash_mul\@ + +_only_less_than_16\@: + # check for 0 length + mov arg4, %r13 + and $15, %r13 # r13 = (arg4 mod 16) + + je _multiple_of_16_bytes\@ + + # handle the last <16 Byte block seperately + + + vpaddd ONE(%rip), %xmm9, %xmm9 # INCR CNT to get Yn + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + ENCRYPT_SINGLE_BLOCK %xmm9 # E(K, Yn) + + + lea SHIFT_MASK+16(%rip), %r12 + sub %r13, %r12 # adjust the shuffle mask pointer to be + # able to shift 16-r13 bytes (r13 is the + # number of bytes in plaintext mod 16) + +_get_last_16_byte_loop\@: + movb (arg3, %r11), %al + movb %al, TMP1 (%rsp , %r11) + add $1, %r11 + cmp %r13, %r11 + jne _get_last_16_byte_loop\@ + + vmovdqu TMP1(%rsp), %xmm1 + + sub $16, %r11 + +_final_ghash_mul\@: + .if \ENC_DEC == DEC + vmovdqa %xmm1, %xmm2 + vpxor %xmm1, %xmm9, %xmm9 # Plaintext XOR E(K, Yn) + vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1 # get the appropriate mask to + # mask out top 16-r13 bytes of xmm9 + vpand %xmm1, %xmm9, %xmm9 # mask out top 16-r13 bytes of xmm9 + vpand %xmm1, %xmm2, %xmm2 + vpshufb SHUF_MASK(%rip), %xmm2, %xmm2 + vpxor %xmm2, %xmm14, %xmm14 + #GHASH computation for the last <16 Byte block + GHASH_MUL_AVX %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 + sub %r13, %r11 + add $16, %r11 + .else + vpxor %xmm1, %xmm9, %xmm9 # Plaintext XOR E(K, Yn) + vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1 # get the appropriate mask to + # mask out top 16-r13 bytes of xmm9 + vpand %xmm1, %xmm9, %xmm9 # mask out top 16-r13 bytes of xmm9 + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + vpxor %xmm9, %xmm14, %xmm14 + #GHASH computation for the last <16 Byte block + GHASH_MUL_AVX %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 + sub %r13, %r11 + add $16, %r11 + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 # shuffle xmm9 back to output as ciphertext + .endif + + + ############################# + # output r13 Bytes + vmovq %xmm9, %rax + cmp $8, %r13 + jle _less_than_8_bytes_left\@ + + mov %rax, (arg2 , %r11) + add $8, %r11 + vpsrldq $8, %xmm9, %xmm9 + vmovq %xmm9, %rax + sub $8, %r13 + +_less_than_8_bytes_left\@: + movb %al, (arg2 , %r11) + add $1, %r11 + shr $8, %rax + sub $1, %r13 + jne _less_than_8_bytes_left\@ + ############################# + +_multiple_of_16_bytes\@: + mov arg7, %r12 # r12 = aadLen (number of bytes) + shl $3, %r12 # convert into number of bits + vmovd %r12d, %xmm15 # len(A) in xmm15 + + shl $3, arg4 # len(C) in bits (*128) + vmovq arg4, %xmm1 + vpslldq $8, %xmm15, %xmm15 # xmm15 = len(A)|| 0x0000000000000000 + vpxor %xmm1, %xmm15, %xmm15 # xmm15 = len(A)||len(C) + + vpxor %xmm15, %xmm14, %xmm14 + GHASH_MUL_AVX %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 # final GHASH computation + vpshufb SHUF_MASK(%rip), %xmm14, %xmm14 # perform a 16Byte swap + + mov arg5, %rax # rax = *Y0 + vmovdqu (%rax), %xmm9 # xmm9 = Y0 + + ENCRYPT_SINGLE_BLOCK %xmm9 # E(K, Y0) + + vpxor %xmm14, %xmm9, %xmm9 + + + +_return_T\@: + mov arg8, %r10 # r10 = authTag + mov arg9, %r11 # r11 = auth_tag_len + + cmp $16, %r11 + je _T_16\@ + + cmp $8, %r11 + jl _T_4\@ + +_T_8\@: + vmovq %xmm9, %rax + mov %rax, (%r10) + add $8, %r10 + sub $8, %r11 + vpsrldq $8, %xmm9, %xmm9 + cmp $0, %r11 + je _return_T_done\@ +_T_4\@: + vmovd %xmm9, %eax + mov %eax, (%r10) + add $4, %r10 + sub $4, %r11 + vpsrldq $4, %xmm9, %xmm9 + cmp $0, %r11 + je _return_T_done\@ +_T_123\@: + vmovd %xmm9, %eax + cmp $2, %r11 + jl _T_1\@ + mov %ax, (%r10) + cmp $2, %r11 + je _return_T_done\@ + add $2, %r10 + sar $16, %eax +_T_1\@: + mov %al, (%r10) + jmp _return_T_done\@ + +_T_16\@: + vmovdqu %xmm9, (%r10) + +_return_T_done\@: + mov %r14, %rsp + + pop %r15 + pop %r14 + pop %r13 + pop %r12 +.endm + + +############################################################# +#void aesni_gcm_precomp_avx_gen2 +# (gcm_data *my_ctx_data, +# u8 *hash_subkey)# /* H, the Hash sub key input. Data starts on a 16-byte boundary. */ +############################################################# +ENTRY(aesni_gcm_precomp_avx_gen2) + #the number of pushes must equal STACK_OFFSET + push %r12 + push %r13 + push %r14 + push %r15 + + mov %rsp, %r14 + + + + sub $VARIABLE_OFFSET, %rsp + and $~63, %rsp # align rsp to 64 bytes + + vmovdqu (arg2), %xmm6 # xmm6 = HashKey + + vpshufb SHUF_MASK(%rip), %xmm6, %xmm6 + ############### PRECOMPUTATION of HashKey<<1 mod poly from the HashKey + vmovdqa %xmm6, %xmm2 + vpsllq $1, %xmm6, %xmm6 + vpsrlq $63, %xmm2, %xmm2 + vmovdqa %xmm2, %xmm1 + vpslldq $8, %xmm2, %xmm2 + vpsrldq $8, %xmm1, %xmm1 + vpor %xmm2, %xmm6, %xmm6 + #reduction + vpshufd $0b00100100, %xmm1, %xmm2 + vpcmpeqd TWOONE(%rip), %xmm2, %xmm2 + vpand POLY(%rip), %xmm2, %xmm2 + vpxor %xmm2, %xmm6, %xmm6 # xmm6 holds the HashKey<<1 mod poly + ####################################################################### + vmovdqa %xmm6, HashKey(arg1) # store HashKey<<1 mod poly + + + PRECOMPUTE_AVX %xmm6, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5 + + mov %r14, %rsp + + pop %r15 + pop %r14 + pop %r13 + pop %r12 + ret +ENDPROC(aesni_gcm_precomp_avx_gen2) + +############################################################################### +#void aesni_gcm_enc_avx_gen2( +# gcm_data *my_ctx_data, /* aligned to 16 Bytes */ +# u8 *out, /* Ciphertext output. Encrypt in-place is allowed. */ +# const u8 *in, /* Plaintext input */ +# u64 plaintext_len, /* Length of data in Bytes for encryption. */ +# u8 *iv, /* Pre-counter block j0: 4 byte salt +# (from Security Association) concatenated with 8 byte +# Initialisation Vector (from IPSec ESP Payload) +# concatenated with 0x00000001. 16-byte aligned pointer. */ +# const u8 *aad, /* Additional Authentication Data (AAD)*/ +# u64 aad_len, /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */ +# u8 *auth_tag, /* Authenticated Tag output. */ +# u64 auth_tag_len)# /* Authenticated Tag Length in bytes. +# Valid values are 16 (most likely), 12 or 8. */ +############################################################################### +ENTRY(aesni_gcm_enc_avx_gen2) + GCM_ENC_DEC_AVX ENC + ret +ENDPROC(aesni_gcm_enc_avx_gen2) + +############################################################################### +#void aesni_gcm_dec_avx_gen2( +# gcm_data *my_ctx_data, /* aligned to 16 Bytes */ +# u8 *out, /* Plaintext output. Decrypt in-place is allowed. */ +# const u8 *in, /* Ciphertext input */ +# u64 plaintext_len, /* Length of data in Bytes for encryption. */ +# u8 *iv, /* Pre-counter block j0: 4 byte salt +# (from Security Association) concatenated with 8 byte +# Initialisation Vector (from IPSec ESP Payload) +# concatenated with 0x00000001. 16-byte aligned pointer. */ +# const u8 *aad, /* Additional Authentication Data (AAD)*/ +# u64 aad_len, /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */ +# u8 *auth_tag, /* Authenticated Tag output. */ +# u64 auth_tag_len)# /* Authenticated Tag Length in bytes. +# Valid values are 16 (most likely), 12 or 8. */ +############################################################################### +ENTRY(aesni_gcm_dec_avx_gen2) + GCM_ENC_DEC_AVX DEC + ret +ENDPROC(aesni_gcm_dec_avx_gen2) +#endif /* CONFIG_AS_AVX */ + +#ifdef CONFIG_AS_AVX2 +############################################################################### +# GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0) +# Input: A and B (128-bits each, bit-reflected) +# Output: C = A*B*x mod poly, (i.e. >>1 ) +# To compute GH = GH*HashKey mod poly, give HK = HashKey<<1 mod poly as input +# GH = GH * HK * x mod poly which is equivalent to GH*HashKey mod poly. +############################################################################### +.macro GHASH_MUL_AVX2 GH HK T1 T2 T3 T4 T5 + + vpclmulqdq $0x11,\HK,\GH,\T1 # T1 = a1*b1 + vpclmulqdq $0x00,\HK,\GH,\T2 # T2 = a0*b0 + vpclmulqdq $0x01,\HK,\GH,\T3 # T3 = a1*b0 + vpclmulqdq $0x10,\HK,\GH,\GH # GH = a0*b1 + vpxor \T3, \GH, \GH + + + vpsrldq $8 , \GH, \T3 # shift-R GH 2 DWs + vpslldq $8 , \GH, \GH # shift-L GH 2 DWs + + vpxor \T3, \T1, \T1 + vpxor \T2, \GH, \GH + + ####################################################################### + #first phase of the reduction + vmovdqa POLY2(%rip), \T3 + + vpclmulqdq $0x01, \GH, \T3, \T2 + vpslldq $8, \T2, \T2 # shift-L T2 2 DWs + + vpxor \T2, \GH, \GH # first phase of the reduction complete + ####################################################################### + #second phase of the reduction + vpclmulqdq $0x00, \GH, \T3, \T2 + vpsrldq $4, \T2, \T2 # shift-R T2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R) + + vpclmulqdq $0x10, \GH, \T3, \GH + vpslldq $4, \GH, \GH # shift-L GH 1 DW (Shift-L 1-DW to obtain result with no shifts) + + vpxor \T2, \GH, \GH # second phase of the reduction complete + ####################################################################### + vpxor \T1, \GH, \GH # the result is in GH + + +.endm + +.macro PRECOMPUTE_AVX2 HK T1 T2 T3 T4 T5 T6 + + # Haskey_i_k holds XORed values of the low and high parts of the Haskey_i + vmovdqa \HK, \T5 + GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^2<<1 mod poly + vmovdqa \T5, HashKey_2(arg1) # [HashKey_2] = HashKey^2<<1 mod poly + + GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^3<<1 mod poly + vmovdqa \T5, HashKey_3(arg1) + + GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^4<<1 mod poly + vmovdqa \T5, HashKey_4(arg1) + + GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^5<<1 mod poly + vmovdqa \T5, HashKey_5(arg1) + + GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^6<<1 mod poly + vmovdqa \T5, HashKey_6(arg1) + + GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^7<<1 mod poly + vmovdqa \T5, HashKey_7(arg1) + + GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^8<<1 mod poly + vmovdqa \T5, HashKey_8(arg1) + +.endm + + +## if a = number of total plaintext bytes +## b = floor(a/16) +## num_initial_blocks = b mod 4# +## encrypt the initial num_initial_blocks blocks and apply ghash on the ciphertext +## r10, r11, r12, rax are clobbered +## arg1, arg2, arg3, r14 are used as a pointer only, not modified + +.macro INITIAL_BLOCKS_AVX2 num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC VER + i = (8-\num_initial_blocks) + j = 0 + setreg + + mov arg6, %r10 # r10 = AAD + mov arg7, %r12 # r12 = aadLen + + + mov %r12, %r11 + + vpxor reg_j, reg_j, reg_j + vpxor reg_i, reg_i, reg_i + + cmp $16, %r11 + jl _get_AAD_rest8\@ +_get_AAD_blocks\@: + vmovdqu (%r10), reg_i + vpshufb SHUF_MASK(%rip), reg_i, reg_i + vpxor reg_i, reg_j, reg_j + GHASH_MUL_AVX2 reg_j, \T2, \T1, \T3, \T4, \T5, \T6 + add $16, %r10 + sub $16, %r12 + sub $16, %r11 + cmp $16, %r11 + jge _get_AAD_blocks\@ + vmovdqu reg_j, reg_i + cmp $0, %r11 + je _get_AAD_done\@ + + vpxor reg_i, reg_i, reg_i + + /* read the last <16B of AAD. since we have at least 4B of + data right after the AAD (the ICV, and maybe some CT), we can + read 4B/8B blocks safely, and then get rid of the extra stuff */ +_get_AAD_rest8\@: + cmp $4, %r11 + jle _get_AAD_rest4\@ + movq (%r10), \T1 + add $8, %r10 + sub $8, %r11 + vpslldq $8, \T1, \T1 + vpsrldq $8, reg_i, reg_i + vpxor \T1, reg_i, reg_i + jmp _get_AAD_rest8\@ +_get_AAD_rest4\@: + cmp $0, %r11 + jle _get_AAD_rest0\@ + mov (%r10), %eax + movq %rax, \T1 + add $4, %r10 + sub $4, %r11 + vpslldq $12, \T1, \T1 + vpsrldq $4, reg_i, reg_i + vpxor \T1, reg_i, reg_i +_get_AAD_rest0\@: + /* finalize: shift out the extra bytes we read, and align + left. since pslldq can only shift by an immediate, we use + vpshufb and an array of shuffle masks */ + movq %r12, %r11 + salq $4, %r11 + movdqu aad_shift_arr(%r11), \T1 + vpshufb \T1, reg_i, reg_i +_get_AAD_rest_final\@: + vpshufb SHUF_MASK(%rip), reg_i, reg_i + vpxor reg_j, reg_i, reg_i + GHASH_MUL_AVX2 reg_i, \T2, \T1, \T3, \T4, \T5, \T6 + +_get_AAD_done\@: + # initialize the data pointer offset as zero + xor %r11d, %r11d + + # start AES for num_initial_blocks blocks + mov arg5, %rax # rax = *Y0 + vmovdqu (%rax), \CTR # CTR = Y0 + vpshufb SHUF_MASK(%rip), \CTR, \CTR + + + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, reg_i + vpshufb SHUF_MASK(%rip), reg_i, reg_i # perform a 16Byte swap + i = (i+1) + setreg +.endr + + vmovdqa (arg1), \T_key + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vpxor \T_key, reg_i, reg_i + i = (i+1) + setreg +.endr + + j = 1 + setreg +.rep 9 + vmovdqa 16*j(arg1), \T_key + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vaesenc \T_key, reg_i, reg_i + i = (i+1) + setreg +.endr + + j = (j+1) + setreg +.endr + + + vmovdqa 16*10(arg1), \T_key + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vaesenclast \T_key, reg_i, reg_i + i = (i+1) + setreg +.endr + + i = (9-\num_initial_blocks) + setreg +.rep \num_initial_blocks + vmovdqu (arg3, %r11), \T1 + vpxor \T1, reg_i, reg_i + vmovdqu reg_i, (arg2 , %r11) # write back ciphertext for + # num_initial_blocks blocks + add $16, %r11 +.if \ENC_DEC == DEC + vmovdqa \T1, reg_i +.endif + vpshufb SHUF_MASK(%rip), reg_i, reg_i # prepare ciphertext for GHASH computations + i = (i+1) + setreg +.endr + + + i = (8-\num_initial_blocks) + j = (9-\num_initial_blocks) + setreg + +.rep \num_initial_blocks + vpxor reg_i, reg_j, reg_j + GHASH_MUL_AVX2 reg_j, \T2, \T1, \T3, \T4, \T5, \T6 # apply GHASH on num_initial_blocks blocks + i = (i+1) + j = (j+1) + setreg +.endr + # XMM8 has the combined result here + + vmovdqa \XMM8, TMP1(%rsp) + vmovdqa \XMM8, \T3 + + cmp $128, %r13 + jl _initial_blocks_done\@ # no need for precomputed constants + +############################################################################### +# Haskey_i_k holds XORed values of the low and high parts of the Haskey_i + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM1 + vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM2 + vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM3 + vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM4 + vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM5 + vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM6 + vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM7 + vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap + + vpaddd ONE(%rip), \CTR, \CTR # INCR Y0 + vmovdqa \CTR, \XMM8 + vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap + + vmovdqa (arg1), \T_key + vpxor \T_key, \XMM1, \XMM1 + vpxor \T_key, \XMM2, \XMM2 + vpxor \T_key, \XMM3, \XMM3 + vpxor \T_key, \XMM4, \XMM4 + vpxor \T_key, \XMM5, \XMM5 + vpxor \T_key, \XMM6, \XMM6 + vpxor \T_key, \XMM7, \XMM7 + vpxor \T_key, \XMM8, \XMM8 + + i = 1 + setreg +.rep 9 # do 9 rounds + vmovdqa 16*i(arg1), \T_key + vaesenc \T_key, \XMM1, \XMM1 + vaesenc \T_key, \XMM2, \XMM2 + vaesenc \T_key, \XMM3, \XMM3 + vaesenc \T_key, \XMM4, \XMM4 + vaesenc \T_key, \XMM5, \XMM5 + vaesenc \T_key, \XMM6, \XMM6 + vaesenc \T_key, \XMM7, \XMM7 + vaesenc \T_key, \XMM8, \XMM8 + i = (i+1) + setreg +.endr + + + vmovdqa 16*i(arg1), \T_key + vaesenclast \T_key, \XMM1, \XMM1 + vaesenclast \T_key, \XMM2, \XMM2 + vaesenclast \T_key, \XMM3, \XMM3 + vaesenclast \T_key, \XMM4, \XMM4 + vaesenclast \T_key, \XMM5, \XMM5 + vaesenclast \T_key, \XMM6, \XMM6 + vaesenclast \T_key, \XMM7, \XMM7 + vaesenclast \T_key, \XMM8, \XMM8 + + vmovdqu (arg3, %r11), \T1 + vpxor \T1, \XMM1, \XMM1 + vmovdqu \XMM1, (arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM1 + .endif + + vmovdqu 16*1(arg3, %r11), \T1 + vpxor \T1, \XMM2, \XMM2 + vmovdqu \XMM2, 16*1(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM2 + .endif + + vmovdqu 16*2(arg3, %r11), \T1 + vpxor \T1, \XMM3, \XMM3 + vmovdqu \XMM3, 16*2(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM3 + .endif + + vmovdqu 16*3(arg3, %r11), \T1 + vpxor \T1, \XMM4, \XMM4 + vmovdqu \XMM4, 16*3(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM4 + .endif + + vmovdqu 16*4(arg3, %r11), \T1 + vpxor \T1, \XMM5, \XMM5 + vmovdqu \XMM5, 16*4(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM5 + .endif + + vmovdqu 16*5(arg3, %r11), \T1 + vpxor \T1, \XMM6, \XMM6 + vmovdqu \XMM6, 16*5(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM6 + .endif + + vmovdqu 16*6(arg3, %r11), \T1 + vpxor \T1, \XMM7, \XMM7 + vmovdqu \XMM7, 16*6(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM7 + .endif + + vmovdqu 16*7(arg3, %r11), \T1 + vpxor \T1, \XMM8, \XMM8 + vmovdqu \XMM8, 16*7(arg2 , %r11) + .if \ENC_DEC == DEC + vmovdqa \T1, \XMM8 + .endif + + add $128, %r11 + + vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap + vpxor TMP1(%rsp), \XMM1, \XMM1 # combine GHASHed value with + # the corresponding ciphertext + vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap + +############################################################################### + +_initial_blocks_done\@: + + +.endm + + + +# encrypt 8 blocks at a time +# ghash the 8 previously encrypted ciphertext blocks +# arg1, arg2, arg3 are used as pointers only, not modified +# r11 is the data offset value +.macro GHASH_8_ENCRYPT_8_PARALLEL_AVX2 T1 T2 T3 T4 T5 T6 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T7 loop_idx ENC_DEC + + vmovdqa \XMM1, \T2 + vmovdqa \XMM2, TMP2(%rsp) + vmovdqa \XMM3, TMP3(%rsp) + vmovdqa \XMM4, TMP4(%rsp) + vmovdqa \XMM5, TMP5(%rsp) + vmovdqa \XMM6, TMP6(%rsp) + vmovdqa \XMM7, TMP7(%rsp) + vmovdqa \XMM8, TMP8(%rsp) + +.if \loop_idx == in_order + vpaddd ONE(%rip), \CTR, \XMM1 # INCR CNT + vpaddd ONE(%rip), \XMM1, \XMM2 + vpaddd ONE(%rip), \XMM2, \XMM3 + vpaddd ONE(%rip), \XMM3, \XMM4 + vpaddd ONE(%rip), \XMM4, \XMM5 + vpaddd ONE(%rip), \XMM5, \XMM6 + vpaddd ONE(%rip), \XMM6, \XMM7 + vpaddd ONE(%rip), \XMM7, \XMM8 + vmovdqa \XMM8, \CTR + + vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap +.else + vpaddd ONEf(%rip), \CTR, \XMM1 # INCR CNT + vpaddd ONEf(%rip), \XMM1, \XMM2 + vpaddd ONEf(%rip), \XMM2, \XMM3 + vpaddd ONEf(%rip), \XMM3, \XMM4 + vpaddd ONEf(%rip), \XMM4, \XMM5 + vpaddd ONEf(%rip), \XMM5, \XMM6 + vpaddd ONEf(%rip), \XMM6, \XMM7 + vpaddd ONEf(%rip), \XMM7, \XMM8 + vmovdqa \XMM8, \CTR +.endif + + + ####################################################################### + + vmovdqu (arg1), \T1 + vpxor \T1, \XMM1, \XMM1 + vpxor \T1, \XMM2, \XMM2 + vpxor \T1, \XMM3, \XMM3 + vpxor \T1, \XMM4, \XMM4 + vpxor \T1, \XMM5, \XMM5 + vpxor \T1, \XMM6, \XMM6 + vpxor \T1, \XMM7, \XMM7 + vpxor \T1, \XMM8, \XMM8 + + ####################################################################### + + + + + + vmovdqu 16*1(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqu 16*2(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + + ####################################################################### + + vmovdqa HashKey_8(arg1), \T5 + vpclmulqdq $0x11, \T5, \T2, \T4 # T4 = a1*b1 + vpclmulqdq $0x00, \T5, \T2, \T7 # T7 = a0*b0 + vpclmulqdq $0x01, \T5, \T2, \T6 # T6 = a1*b0 + vpclmulqdq $0x10, \T5, \T2, \T5 # T5 = a0*b1 + vpxor \T5, \T6, \T6 + + vmovdqu 16*3(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqa TMP2(%rsp), \T1 + vmovdqa HashKey_7(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpclmulqdq $0x01, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vpclmulqdq $0x10, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*4(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + ####################################################################### + + vmovdqa TMP3(%rsp), \T1 + vmovdqa HashKey_6(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpclmulqdq $0x01, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vpclmulqdq $0x10, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*5(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqa TMP4(%rsp), \T1 + vmovdqa HashKey_5(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpclmulqdq $0x01, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vpclmulqdq $0x10, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*6(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + + vmovdqa TMP5(%rsp), \T1 + vmovdqa HashKey_4(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpclmulqdq $0x01, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vpclmulqdq $0x10, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*7(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqa TMP6(%rsp), \T1 + vmovdqa HashKey_3(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpclmulqdq $0x01, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vpclmulqdq $0x10, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vmovdqu 16*8(arg1), \T1 + vaesenc \T1, \XMM1, \XMM1 + vaesenc \T1, \XMM2, \XMM2 + vaesenc \T1, \XMM3, \XMM3 + vaesenc \T1, \XMM4, \XMM4 + vaesenc \T1, \XMM5, \XMM5 + vaesenc \T1, \XMM6, \XMM6 + vaesenc \T1, \XMM7, \XMM7 + vaesenc \T1, \XMM8, \XMM8 + + vmovdqa TMP7(%rsp), \T1 + vmovdqa HashKey_2(arg1), \T5 + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T4 + + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpclmulqdq $0x01, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vpclmulqdq $0x10, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + + ####################################################################### + + vmovdqu 16*9(arg1), \T5 + vaesenc \T5, \XMM1, \XMM1 + vaesenc \T5, \XMM2, \XMM2 + vaesenc \T5, \XMM3, \XMM3 + vaesenc \T5, \XMM4, \XMM4 + vaesenc \T5, \XMM5, \XMM5 + vaesenc \T5, \XMM6, \XMM6 + vaesenc \T5, \XMM7, \XMM7 + vaesenc \T5, \XMM8, \XMM8 + + vmovdqa TMP8(%rsp), \T1 + vmovdqa HashKey(arg1), \T5 + + vpclmulqdq $0x00, \T5, \T1, \T3 + vpxor \T3, \T7, \T7 + + vpclmulqdq $0x01, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vpclmulqdq $0x10, \T5, \T1, \T3 + vpxor \T3, \T6, \T6 + + vpclmulqdq $0x11, \T5, \T1, \T3 + vpxor \T3, \T4, \T1 + + + vmovdqu 16*10(arg1), \T5 + + i = 0 + j = 1 + setreg +.rep 8 + vpxor 16*i(arg3, %r11), \T5, \T2 + .if \ENC_DEC == ENC + vaesenclast \T2, reg_j, reg_j + .else + vaesenclast \T2, reg_j, \T3 + vmovdqu 16*i(arg3, %r11), reg_j + vmovdqu \T3, 16*i(arg2, %r11) + .endif + i = (i+1) + j = (j+1) + setreg +.endr + ####################################################################### + + + vpslldq $8, \T6, \T3 # shift-L T3 2 DWs + vpsrldq $8, \T6, \T6 # shift-R T2 2 DWs + vpxor \T3, \T7, \T7 + vpxor \T6, \T1, \T1 # accumulate the results in T1:T7 + + + + ####################################################################### + #first phase of the reduction + vmovdqa POLY2(%rip), \T3 + + vpclmulqdq $0x01, \T7, \T3, \T2 + vpslldq $8, \T2, \T2 # shift-L xmm2 2 DWs + + vpxor \T2, \T7, \T7 # first phase of the reduction complete + ####################################################################### + .if \ENC_DEC == ENC + vmovdqu \XMM1, 16*0(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM2, 16*1(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM3, 16*2(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM4, 16*3(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM5, 16*4(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM6, 16*5(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM7, 16*6(arg2,%r11) # Write to the Ciphertext buffer + vmovdqu \XMM8, 16*7(arg2,%r11) # Write to the Ciphertext buffer + .endif + + ####################################################################### + #second phase of the reduction + vpclmulqdq $0x00, \T7, \T3, \T2 + vpsrldq $4, \T2, \T2 # shift-R xmm2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R) + + vpclmulqdq $0x10, \T7, \T3, \T4 + vpslldq $4, \T4, \T4 # shift-L xmm0 1 DW (Shift-L 1-DW to obtain result with no shifts) + + vpxor \T2, \T4, \T4 # second phase of the reduction complete + ####################################################################### + vpxor \T4, \T1, \T1 # the result is in T1 + + vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap + vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap + + + vpxor \T1, \XMM1, \XMM1 + + + +.endm + + +# GHASH the last 4 ciphertext blocks. +.macro GHASH_LAST_8_AVX2 T1 T2 T3 T4 T5 T6 T7 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 + + ## Karatsuba Method + + vmovdqa HashKey_8(arg1), \T5 + + vpshufd $0b01001110, \XMM1, \T2 + vpshufd $0b01001110, \T5, \T3 + vpxor \XMM1, \T2, \T2 + vpxor \T5, \T3, \T3 + + vpclmulqdq $0x11, \T5, \XMM1, \T6 + vpclmulqdq $0x00, \T5, \XMM1, \T7 + + vpclmulqdq $0x00, \T3, \T2, \XMM1 + + ###################### + + vmovdqa HashKey_7(arg1), \T5 + vpshufd $0b01001110, \XMM2, \T2 + vpshufd $0b01001110, \T5, \T3 + vpxor \XMM2, \T2, \T2 + vpxor \T5, \T3, \T3 + + vpclmulqdq $0x11, \T5, \XMM2, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM2, \T4 + vpxor \T4, \T7, \T7 + + vpclmulqdq $0x00, \T3, \T2, \T2 + + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vmovdqa HashKey_6(arg1), \T5 + vpshufd $0b01001110, \XMM3, \T2 + vpshufd $0b01001110, \T5, \T3 + vpxor \XMM3, \T2, \T2 + vpxor \T5, \T3, \T3 + + vpclmulqdq $0x11, \T5, \XMM3, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM3, \T4 + vpxor \T4, \T7, \T7 + + vpclmulqdq $0x00, \T3, \T2, \T2 + + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vmovdqa HashKey_5(arg1), \T5 + vpshufd $0b01001110, \XMM4, \T2 + vpshufd $0b01001110, \T5, \T3 + vpxor \XMM4, \T2, \T2 + vpxor \T5, \T3, \T3 + + vpclmulqdq $0x11, \T5, \XMM4, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM4, \T4 + vpxor \T4, \T7, \T7 + + vpclmulqdq $0x00, \T3, \T2, \T2 + + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vmovdqa HashKey_4(arg1), \T5 + vpshufd $0b01001110, \XMM5, \T2 + vpshufd $0b01001110, \T5, \T3 + vpxor \XMM5, \T2, \T2 + vpxor \T5, \T3, \T3 + + vpclmulqdq $0x11, \T5, \XMM5, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM5, \T4 + vpxor \T4, \T7, \T7 + + vpclmulqdq $0x00, \T3, \T2, \T2 + + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vmovdqa HashKey_3(arg1), \T5 + vpshufd $0b01001110, \XMM6, \T2 + vpshufd $0b01001110, \T5, \T3 + vpxor \XMM6, \T2, \T2 + vpxor \T5, \T3, \T3 + + vpclmulqdq $0x11, \T5, \XMM6, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM6, \T4 + vpxor \T4, \T7, \T7 + + vpclmulqdq $0x00, \T3, \T2, \T2 + + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vmovdqa HashKey_2(arg1), \T5 + vpshufd $0b01001110, \XMM7, \T2 + vpshufd $0b01001110, \T5, \T3 + vpxor \XMM7, \T2, \T2 + vpxor \T5, \T3, \T3 + + vpclmulqdq $0x11, \T5, \XMM7, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM7, \T4 + vpxor \T4, \T7, \T7 + + vpclmulqdq $0x00, \T3, \T2, \T2 + + vpxor \T2, \XMM1, \XMM1 + + ###################### + + vmovdqa HashKey(arg1), \T5 + vpshufd $0b01001110, \XMM8, \T2 + vpshufd $0b01001110, \T5, \T3 + vpxor \XMM8, \T2, \T2 + vpxor \T5, \T3, \T3 + + vpclmulqdq $0x11, \T5, \XMM8, \T4 + vpxor \T4, \T6, \T6 + + vpclmulqdq $0x00, \T5, \XMM8, \T4 + vpxor \T4, \T7, \T7 + + vpclmulqdq $0x00, \T3, \T2, \T2 + + vpxor \T2, \XMM1, \XMM1 + vpxor \T6, \XMM1, \XMM1 + vpxor \T7, \XMM1, \T2 + + + + + vpslldq $8, \T2, \T4 + vpsrldq $8, \T2, \T2 + + vpxor \T4, \T7, \T7 + vpxor \T2, \T6, \T6 # <T6:T7> holds the result of the + # accumulated carry-less multiplications + + ####################################################################### + #first phase of the reduction + vmovdqa POLY2(%rip), \T3 + + vpclmulqdq $0x01, \T7, \T3, \T2 + vpslldq $8, \T2, \T2 # shift-L xmm2 2 DWs + + vpxor \T2, \T7, \T7 # first phase of the reduction complete + ####################################################################### + + + #second phase of the reduction + vpclmulqdq $0x00, \T7, \T3, \T2 + vpsrldq $4, \T2, \T2 # shift-R T2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R) + + vpclmulqdq $0x10, \T7, \T3, \T4 + vpslldq $4, \T4, \T4 # shift-L T4 1 DW (Shift-L 1-DW to obtain result with no shifts) + + vpxor \T2, \T4, \T4 # second phase of the reduction complete + ####################################################################### + vpxor \T4, \T6, \T6 # the result is in T6 +.endm + + + +# combined for GCM encrypt and decrypt functions +# clobbering all xmm registers +# clobbering r10, r11, r12, r13, r14, r15 +.macro GCM_ENC_DEC_AVX2 ENC_DEC + + #the number of pushes must equal STACK_OFFSET + push %r12 + push %r13 + push %r14 + push %r15 + + mov %rsp, %r14 + + + + + sub $VARIABLE_OFFSET, %rsp + and $~63, %rsp # align rsp to 64 bytes + + + vmovdqu HashKey(arg1), %xmm13 # xmm13 = HashKey + + mov arg4, %r13 # save the number of bytes of plaintext/ciphertext + and $-16, %r13 # r13 = r13 - (r13 mod 16) + + mov %r13, %r12 + shr $4, %r12 + and $7, %r12 + jz _initial_num_blocks_is_0\@ + + cmp $7, %r12 + je _initial_num_blocks_is_7\@ + cmp $6, %r12 + je _initial_num_blocks_is_6\@ + cmp $5, %r12 + je _initial_num_blocks_is_5\@ + cmp $4, %r12 + je _initial_num_blocks_is_4\@ + cmp $3, %r12 + je _initial_num_blocks_is_3\@ + cmp $2, %r12 + je _initial_num_blocks_is_2\@ + + jmp _initial_num_blocks_is_1\@ + +_initial_num_blocks_is_7\@: + INITIAL_BLOCKS_AVX2 7, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*7, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_6\@: + INITIAL_BLOCKS_AVX2 6, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*6, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_5\@: + INITIAL_BLOCKS_AVX2 5, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*5, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_4\@: + INITIAL_BLOCKS_AVX2 4, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*4, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_3\@: + INITIAL_BLOCKS_AVX2 3, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*3, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_2\@: + INITIAL_BLOCKS_AVX2 2, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*2, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_1\@: + INITIAL_BLOCKS_AVX2 1, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + sub $16*1, %r13 + jmp _initial_blocks_encrypted\@ + +_initial_num_blocks_is_0\@: + INITIAL_BLOCKS_AVX2 0, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC + + +_initial_blocks_encrypted\@: + cmp $0, %r13 + je _zero_cipher_left\@ + + sub $128, %r13 + je _eight_cipher_left\@ + + + + + vmovd %xmm9, %r15d + and $255, %r15d + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + + +_encrypt_by_8_new\@: + cmp $(255-8), %r15d + jg _encrypt_by_8\@ + + + + add $8, %r15b + GHASH_8_ENCRYPT_8_PARALLEL_AVX2 %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, out_order, \ENC_DEC + add $128, %r11 + sub $128, %r13 + jne _encrypt_by_8_new\@ + + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + jmp _eight_cipher_left\@ + +_encrypt_by_8\@: + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + add $8, %r15b + GHASH_8_ENCRYPT_8_PARALLEL_AVX2 %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, in_order, \ENC_DEC + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + add $128, %r11 + sub $128, %r13 + jne _encrypt_by_8_new\@ + + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + + + + +_eight_cipher_left\@: + GHASH_LAST_8_AVX2 %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8 + + +_zero_cipher_left\@: + cmp $16, arg4 + jl _only_less_than_16\@ + + mov arg4, %r13 + and $15, %r13 # r13 = (arg4 mod 16) + + je _multiple_of_16_bytes\@ + + # handle the last <16 Byte block seperately + + + vpaddd ONE(%rip), %xmm9, %xmm9 # INCR CNT to get Yn + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + ENCRYPT_SINGLE_BLOCK %xmm9 # E(K, Yn) + + sub $16, %r11 + add %r13, %r11 + vmovdqu (arg3, %r11), %xmm1 # receive the last <16 Byte block + + lea SHIFT_MASK+16(%rip), %r12 + sub %r13, %r12 # adjust the shuffle mask pointer + # to be able to shift 16-r13 bytes + # (r13 is the number of bytes in plaintext mod 16) + vmovdqu (%r12), %xmm2 # get the appropriate shuffle mask + vpshufb %xmm2, %xmm1, %xmm1 # shift right 16-r13 bytes + jmp _final_ghash_mul\@ + +_only_less_than_16\@: + # check for 0 length + mov arg4, %r13 + and $15, %r13 # r13 = (arg4 mod 16) + + je _multiple_of_16_bytes\@ + + # handle the last <16 Byte block seperately + + + vpaddd ONE(%rip), %xmm9, %xmm9 # INCR CNT to get Yn + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + ENCRYPT_SINGLE_BLOCK %xmm9 # E(K, Yn) + + + lea SHIFT_MASK+16(%rip), %r12 + sub %r13, %r12 # adjust the shuffle mask pointer to be + # able to shift 16-r13 bytes (r13 is the + # number of bytes in plaintext mod 16) + +_get_last_16_byte_loop\@: + movb (arg3, %r11), %al + movb %al, TMP1 (%rsp , %r11) + add $1, %r11 + cmp %r13, %r11 + jne _get_last_16_byte_loop\@ + + vmovdqu TMP1(%rsp), %xmm1 + + sub $16, %r11 + +_final_ghash_mul\@: + .if \ENC_DEC == DEC + vmovdqa %xmm1, %xmm2 + vpxor %xmm1, %xmm9, %xmm9 # Plaintext XOR E(K, Yn) + vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1 # get the appropriate mask to mask out top 16-r13 bytes of xmm9 + vpand %xmm1, %xmm9, %xmm9 # mask out top 16-r13 bytes of xmm9 + vpand %xmm1, %xmm2, %xmm2 + vpshufb SHUF_MASK(%rip), %xmm2, %xmm2 + vpxor %xmm2, %xmm14, %xmm14 + #GHASH computation for the last <16 Byte block + GHASH_MUL_AVX2 %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 + sub %r13, %r11 + add $16, %r11 + .else + vpxor %xmm1, %xmm9, %xmm9 # Plaintext XOR E(K, Yn) + vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1 # get the appropriate mask to mask out top 16-r13 bytes of xmm9 + vpand %xmm1, %xmm9, %xmm9 # mask out top 16-r13 bytes of xmm9 + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + vpxor %xmm9, %xmm14, %xmm14 + #GHASH computation for the last <16 Byte block + GHASH_MUL_AVX2 %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 + sub %r13, %r11 + add $16, %r11 + vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 # shuffle xmm9 back to output as ciphertext + .endif + + + ############################# + # output r13 Bytes + vmovq %xmm9, %rax + cmp $8, %r13 + jle _less_than_8_bytes_left\@ + + mov %rax, (arg2 , %r11) + add $8, %r11 + vpsrldq $8, %xmm9, %xmm9 + vmovq %xmm9, %rax + sub $8, %r13 + +_less_than_8_bytes_left\@: + movb %al, (arg2 , %r11) + add $1, %r11 + shr $8, %rax + sub $1, %r13 + jne _less_than_8_bytes_left\@ + ############################# + +_multiple_of_16_bytes\@: + mov arg7, %r12 # r12 = aadLen (number of bytes) + shl $3, %r12 # convert into number of bits + vmovd %r12d, %xmm15 # len(A) in xmm15 + + shl $3, arg4 # len(C) in bits (*128) + vmovq arg4, %xmm1 + vpslldq $8, %xmm15, %xmm15 # xmm15 = len(A)|| 0x0000000000000000 + vpxor %xmm1, %xmm15, %xmm15 # xmm15 = len(A)||len(C) + + vpxor %xmm15, %xmm14, %xmm14 + GHASH_MUL_AVX2 %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 # final GHASH computation + vpshufb SHUF_MASK(%rip), %xmm14, %xmm14 # perform a 16Byte swap + + mov arg5, %rax # rax = *Y0 + vmovdqu (%rax), %xmm9 # xmm9 = Y0 + + ENCRYPT_SINGLE_BLOCK %xmm9 # E(K, Y0) + + vpxor %xmm14, %xmm9, %xmm9 + + + +_return_T\@: + mov arg8, %r10 # r10 = authTag + mov arg9, %r11 # r11 = auth_tag_len + + cmp $16, %r11 + je _T_16\@ + + cmp $8, %r11 + jl _T_4\@ + +_T_8\@: + vmovq %xmm9, %rax + mov %rax, (%r10) + add $8, %r10 + sub $8, %r11 + vpsrldq $8, %xmm9, %xmm9 + cmp $0, %r11 + je _return_T_done\@ +_T_4\@: + vmovd %xmm9, %eax + mov %eax, (%r10) + add $4, %r10 + sub $4, %r11 + vpsrldq $4, %xmm9, %xmm9 + cmp $0, %r11 + je _return_T_done\@ +_T_123\@: + vmovd %xmm9, %eax + cmp $2, %r11 + jl _T_1\@ + mov %ax, (%r10) + cmp $2, %r11 + je _return_T_done\@ + add $2, %r10 + sar $16, %eax +_T_1\@: + mov %al, (%r10) + jmp _return_T_done\@ + +_T_16\@: + vmovdqu %xmm9, (%r10) + +_return_T_done\@: + mov %r14, %rsp + + pop %r15 + pop %r14 + pop %r13 + pop %r12 +.endm + + +############################################################# +#void aesni_gcm_precomp_avx_gen4 +# (gcm_data *my_ctx_data, +# u8 *hash_subkey)# /* H, the Hash sub key input. +# Data starts on a 16-byte boundary. */ +############################################################# +ENTRY(aesni_gcm_precomp_avx_gen4) + #the number of pushes must equal STACK_OFFSET + push %r12 + push %r13 + push %r14 + push %r15 + + mov %rsp, %r14 + + + + sub $VARIABLE_OFFSET, %rsp + and $~63, %rsp # align rsp to 64 bytes + + vmovdqu (arg2), %xmm6 # xmm6 = HashKey + + vpshufb SHUF_MASK(%rip), %xmm6, %xmm6 + ############### PRECOMPUTATION of HashKey<<1 mod poly from the HashKey + vmovdqa %xmm6, %xmm2 + vpsllq $1, %xmm6, %xmm6 + vpsrlq $63, %xmm2, %xmm2 + vmovdqa %xmm2, %xmm1 + vpslldq $8, %xmm2, %xmm2 + vpsrldq $8, %xmm1, %xmm1 + vpor %xmm2, %xmm6, %xmm6 + #reduction + vpshufd $0b00100100, %xmm1, %xmm2 + vpcmpeqd TWOONE(%rip), %xmm2, %xmm2 + vpand POLY(%rip), %xmm2, %xmm2 + vpxor %xmm2, %xmm6, %xmm6 # xmm6 holds the HashKey<<1 mod poly + ####################################################################### + vmovdqa %xmm6, HashKey(arg1) # store HashKey<<1 mod poly + + + PRECOMPUTE_AVX2 %xmm6, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5 + + mov %r14, %rsp + + pop %r15 + pop %r14 + pop %r13 + pop %r12 + ret +ENDPROC(aesni_gcm_precomp_avx_gen4) + + +############################################################################### +#void aesni_gcm_enc_avx_gen4( +# gcm_data *my_ctx_data, /* aligned to 16 Bytes */ +# u8 *out, /* Ciphertext output. Encrypt in-place is allowed. */ +# const u8 *in, /* Plaintext input */ +# u64 plaintext_len, /* Length of data in Bytes for encryption. */ +# u8 *iv, /* Pre-counter block j0: 4 byte salt +# (from Security Association) concatenated with 8 byte +# Initialisation Vector (from IPSec ESP Payload) +# concatenated with 0x00000001. 16-byte aligned pointer. */ +# const u8 *aad, /* Additional Authentication Data (AAD)*/ +# u64 aad_len, /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */ +# u8 *auth_tag, /* Authenticated Tag output. */ +# u64 auth_tag_len)# /* Authenticated Tag Length in bytes. +# Valid values are 16 (most likely), 12 or 8. */ +############################################################################### +ENTRY(aesni_gcm_enc_avx_gen4) + GCM_ENC_DEC_AVX2 ENC + ret +ENDPROC(aesni_gcm_enc_avx_gen4) + +############################################################################### +#void aesni_gcm_dec_avx_gen4( +# gcm_data *my_ctx_data, /* aligned to 16 Bytes */ +# u8 *out, /* Plaintext output. Decrypt in-place is allowed. */ +# const u8 *in, /* Ciphertext input */ +# u64 plaintext_len, /* Length of data in Bytes for encryption. */ +# u8 *iv, /* Pre-counter block j0: 4 byte salt +# (from Security Association) concatenated with 8 byte +# Initialisation Vector (from IPSec ESP Payload) +# concatenated with 0x00000001. 16-byte aligned pointer. */ +# const u8 *aad, /* Additional Authentication Data (AAD)*/ +# u64 aad_len, /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */ +# u8 *auth_tag, /* Authenticated Tag output. */ +# u64 auth_tag_len)# /* Authenticated Tag Length in bytes. +# Valid values are 16 (most likely), 12 or 8. */ +############################################################################### +ENTRY(aesni_gcm_dec_avx_gen4) + GCM_ENC_DEC_AVX2 DEC + ret +ENDPROC(aesni_gcm_dec_avx_gen4) + +#endif /* CONFIG_AS_AVX2 */ diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c new file mode 100644 index 000000000..917f25e4d --- /dev/null +++ b/arch/x86/crypto/aesni-intel_glue.c @@ -0,0 +1,1548 @@ +/* + * Support for Intel AES-NI instructions. This file contains glue + * code, the real AES implementation is in intel-aes_asm.S. + * + * Copyright (C) 2008, Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * Added RFC4106 AES-GCM support for 128-bit keys under the AEAD + * interface for 64-bit kernels. + * Authors: Adrian Hoban <adrian.hoban@intel.com> + * Gabriele Paoloni <gabriele.paoloni@intel.com> + * Tadeusz Struk (tadeusz.struk@intel.com) + * Aidan O'Mahony (aidan.o.mahony@intel.com) + * Copyright (c) 2010, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/hardirq.h> +#include <linux/types.h> +#include <linux/module.h> +#include <linux/err.h> +#include <crypto/algapi.h> +#include <crypto/aes.h> +#include <crypto/cryptd.h> +#include <crypto/ctr.h> +#include <crypto/b128ops.h> +#include <crypto/gcm.h> +#include <crypto/xts.h> +#include <asm/cpu_device_id.h> +#include <asm/fpu/api.h> +#include <asm/crypto/aes.h> +#include <crypto/scatterwalk.h> +#include <crypto/internal/aead.h> +#include <crypto/internal/simd.h> +#include <crypto/internal/skcipher.h> +#include <linux/workqueue.h> +#include <linux/spinlock.h> +#ifdef CONFIG_X86_64 +#include <asm/crypto/glue_helper.h> +#endif + + +#define AESNI_ALIGN 16 +#define AESNI_ALIGN_ATTR __attribute__ ((__aligned__(AESNI_ALIGN))) +#define AES_BLOCK_MASK (~(AES_BLOCK_SIZE - 1)) +#define RFC4106_HASH_SUBKEY_SIZE 16 +#define AESNI_ALIGN_EXTRA ((AESNI_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1)) +#define CRYPTO_AES_CTX_SIZE (sizeof(struct crypto_aes_ctx) + AESNI_ALIGN_EXTRA) +#define XTS_AES_CTX_SIZE (sizeof(struct aesni_xts_ctx) + AESNI_ALIGN_EXTRA) + +/* This data is stored at the end of the crypto_tfm struct. + * It's a type of per "session" data storage location. + * This needs to be 16 byte aligned. + */ +struct aesni_rfc4106_gcm_ctx { + u8 hash_subkey[16] AESNI_ALIGN_ATTR; + struct crypto_aes_ctx aes_key_expanded AESNI_ALIGN_ATTR; + u8 nonce[4]; +}; + +struct generic_gcmaes_ctx { + u8 hash_subkey[16] AESNI_ALIGN_ATTR; + struct crypto_aes_ctx aes_key_expanded AESNI_ALIGN_ATTR; +}; + +struct aesni_xts_ctx { + u8 raw_tweak_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR; + u8 raw_crypt_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR; +}; + +#define GCM_BLOCK_LEN 16 + +struct gcm_context_data { + /* init, update and finalize context data */ + u8 aad_hash[GCM_BLOCK_LEN]; + u64 aad_length; + u64 in_length; + u8 partial_block_enc_key[GCM_BLOCK_LEN]; + u8 orig_IV[GCM_BLOCK_LEN]; + u8 current_counter[GCM_BLOCK_LEN]; + u64 partial_block_len; + u64 unused; + u8 hash_keys[GCM_BLOCK_LEN * 8]; +}; + +asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key, + unsigned int key_len); +asmlinkage void aesni_enc(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in); +asmlinkage void aesni_dec(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in); +asmlinkage void aesni_ecb_enc(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in, unsigned int len); +asmlinkage void aesni_ecb_dec(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in, unsigned int len); +asmlinkage void aesni_cbc_enc(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in, unsigned int len, u8 *iv); +asmlinkage void aesni_cbc_dec(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in, unsigned int len, u8 *iv); + +int crypto_fpu_init(void); +void crypto_fpu_exit(void); + +#define AVX_GEN2_OPTSIZE 640 +#define AVX_GEN4_OPTSIZE 4096 + +#ifdef CONFIG_X86_64 + +static void (*aesni_ctr_enc_tfm)(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in, unsigned int len, u8 *iv); +asmlinkage void aesni_ctr_enc(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in, unsigned int len, u8 *iv); + +asmlinkage void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in, bool enc, u8 *iv); + +/* asmlinkage void aesni_gcm_enc() + * void *ctx, AES Key schedule. Starts on a 16 byte boundary. + * struct gcm_context_data. May be uninitialized. + * u8 *out, Ciphertext output. Encrypt in-place is allowed. + * const u8 *in, Plaintext input + * unsigned long plaintext_len, Length of data in bytes for encryption. + * u8 *iv, Pre-counter block j0: 12 byte IV concatenated with 0x00000001. + * 16-byte aligned pointer. + * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. + * const u8 *aad, Additional Authentication Data (AAD) + * unsigned long aad_len, Length of AAD in bytes. + * u8 *auth_tag, Authenticated Tag output. + * unsigned long auth_tag_len), Authenticated Tag Length in bytes. + * Valid values are 16 (most likely), 12 or 8. + */ +asmlinkage void aesni_gcm_enc(void *ctx, + struct gcm_context_data *gdata, u8 *out, + const u8 *in, unsigned long plaintext_len, u8 *iv, + u8 *hash_subkey, const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len); + +/* asmlinkage void aesni_gcm_dec() + * void *ctx, AES Key schedule. Starts on a 16 byte boundary. + * struct gcm_context_data. May be uninitialized. + * u8 *out, Plaintext output. Decrypt in-place is allowed. + * const u8 *in, Ciphertext input + * unsigned long ciphertext_len, Length of data in bytes for decryption. + * u8 *iv, Pre-counter block j0: 12 byte IV concatenated with 0x00000001. + * 16-byte aligned pointer. + * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. + * const u8 *aad, Additional Authentication Data (AAD) + * unsigned long aad_len, Length of AAD in bytes. With RFC4106 this is going + * to be 8 or 12 bytes + * u8 *auth_tag, Authenticated Tag output. + * unsigned long auth_tag_len) Authenticated Tag Length in bytes. + * Valid values are 16 (most likely), 12 or 8. + */ +asmlinkage void aesni_gcm_dec(void *ctx, + struct gcm_context_data *gdata, u8 *out, + const u8 *in, unsigned long ciphertext_len, u8 *iv, + u8 *hash_subkey, const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len); + +/* Scatter / Gather routines, with args similar to above */ +asmlinkage void aesni_gcm_init(void *ctx, + struct gcm_context_data *gdata, + u8 *iv, + u8 *hash_subkey, const u8 *aad, + unsigned long aad_len); +asmlinkage void aesni_gcm_enc_update(void *ctx, + struct gcm_context_data *gdata, u8 *out, + const u8 *in, unsigned long plaintext_len); +asmlinkage void aesni_gcm_dec_update(void *ctx, + struct gcm_context_data *gdata, u8 *out, + const u8 *in, + unsigned long ciphertext_len); +asmlinkage void aesni_gcm_finalize(void *ctx, + struct gcm_context_data *gdata, + u8 *auth_tag, unsigned long auth_tag_len); + +#ifdef CONFIG_AS_AVX +asmlinkage void aes_ctr_enc_128_avx_by8(const u8 *in, u8 *iv, + void *keys, u8 *out, unsigned int num_bytes); +asmlinkage void aes_ctr_enc_192_avx_by8(const u8 *in, u8 *iv, + void *keys, u8 *out, unsigned int num_bytes); +asmlinkage void aes_ctr_enc_256_avx_by8(const u8 *in, u8 *iv, + void *keys, u8 *out, unsigned int num_bytes); +/* + * asmlinkage void aesni_gcm_precomp_avx_gen2() + * gcm_data *my_ctx_data, context data + * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. + */ +asmlinkage void aesni_gcm_precomp_avx_gen2(void *my_ctx_data, u8 *hash_subkey); + +asmlinkage void aesni_gcm_enc_avx_gen2(void *ctx, u8 *out, + const u8 *in, unsigned long plaintext_len, u8 *iv, + const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len); + +asmlinkage void aesni_gcm_dec_avx_gen2(void *ctx, u8 *out, + const u8 *in, unsigned long ciphertext_len, u8 *iv, + const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len); + +static void aesni_gcm_enc_avx(void *ctx, + struct gcm_context_data *data, u8 *out, + const u8 *in, unsigned long plaintext_len, u8 *iv, + u8 *hash_subkey, const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len) +{ + struct crypto_aes_ctx *aes_ctx = (struct crypto_aes_ctx*)ctx; + if ((plaintext_len < AVX_GEN2_OPTSIZE) || (aes_ctx-> key_length != AES_KEYSIZE_128)){ + aesni_gcm_enc(ctx, data, out, in, + plaintext_len, iv, hash_subkey, aad, + aad_len, auth_tag, auth_tag_len); + } else { + aesni_gcm_precomp_avx_gen2(ctx, hash_subkey); + aesni_gcm_enc_avx_gen2(ctx, out, in, plaintext_len, iv, aad, + aad_len, auth_tag, auth_tag_len); + } +} + +static void aesni_gcm_dec_avx(void *ctx, + struct gcm_context_data *data, u8 *out, + const u8 *in, unsigned long ciphertext_len, u8 *iv, + u8 *hash_subkey, const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len) +{ + struct crypto_aes_ctx *aes_ctx = (struct crypto_aes_ctx*)ctx; + if ((ciphertext_len < AVX_GEN2_OPTSIZE) || (aes_ctx-> key_length != AES_KEYSIZE_128)) { + aesni_gcm_dec(ctx, data, out, in, + ciphertext_len, iv, hash_subkey, aad, + aad_len, auth_tag, auth_tag_len); + } else { + aesni_gcm_precomp_avx_gen2(ctx, hash_subkey); + aesni_gcm_dec_avx_gen2(ctx, out, in, ciphertext_len, iv, aad, + aad_len, auth_tag, auth_tag_len); + } +} +#endif + +#ifdef CONFIG_AS_AVX2 +/* + * asmlinkage void aesni_gcm_precomp_avx_gen4() + * gcm_data *my_ctx_data, context data + * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. + */ +asmlinkage void aesni_gcm_precomp_avx_gen4(void *my_ctx_data, u8 *hash_subkey); + +asmlinkage void aesni_gcm_enc_avx_gen4(void *ctx, u8 *out, + const u8 *in, unsigned long plaintext_len, u8 *iv, + const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len); + +asmlinkage void aesni_gcm_dec_avx_gen4(void *ctx, u8 *out, + const u8 *in, unsigned long ciphertext_len, u8 *iv, + const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len); + +static void aesni_gcm_enc_avx2(void *ctx, + struct gcm_context_data *data, u8 *out, + const u8 *in, unsigned long plaintext_len, u8 *iv, + u8 *hash_subkey, const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len) +{ + struct crypto_aes_ctx *aes_ctx = (struct crypto_aes_ctx*)ctx; + if ((plaintext_len < AVX_GEN2_OPTSIZE) || (aes_ctx-> key_length != AES_KEYSIZE_128)) { + aesni_gcm_enc(ctx, data, out, in, + plaintext_len, iv, hash_subkey, aad, + aad_len, auth_tag, auth_tag_len); + } else if (plaintext_len < AVX_GEN4_OPTSIZE) { + aesni_gcm_precomp_avx_gen2(ctx, hash_subkey); + aesni_gcm_enc_avx_gen2(ctx, out, in, plaintext_len, iv, aad, + aad_len, auth_tag, auth_tag_len); + } else { + aesni_gcm_precomp_avx_gen4(ctx, hash_subkey); + aesni_gcm_enc_avx_gen4(ctx, out, in, plaintext_len, iv, aad, + aad_len, auth_tag, auth_tag_len); + } +} + +static void aesni_gcm_dec_avx2(void *ctx, + struct gcm_context_data *data, u8 *out, + const u8 *in, unsigned long ciphertext_len, u8 *iv, + u8 *hash_subkey, const u8 *aad, unsigned long aad_len, + u8 *auth_tag, unsigned long auth_tag_len) +{ + struct crypto_aes_ctx *aes_ctx = (struct crypto_aes_ctx*)ctx; + if ((ciphertext_len < AVX_GEN2_OPTSIZE) || (aes_ctx-> key_length != AES_KEYSIZE_128)) { + aesni_gcm_dec(ctx, data, out, in, + ciphertext_len, iv, hash_subkey, + aad, aad_len, auth_tag, auth_tag_len); + } else if (ciphertext_len < AVX_GEN4_OPTSIZE) { + aesni_gcm_precomp_avx_gen2(ctx, hash_subkey); + aesni_gcm_dec_avx_gen2(ctx, out, in, ciphertext_len, iv, aad, + aad_len, auth_tag, auth_tag_len); + } else { + aesni_gcm_precomp_avx_gen4(ctx, hash_subkey); + aesni_gcm_dec_avx_gen4(ctx, out, in, ciphertext_len, iv, aad, + aad_len, auth_tag, auth_tag_len); + } +} +#endif + +static void (*aesni_gcm_enc_tfm)(void *ctx, + struct gcm_context_data *data, u8 *out, + const u8 *in, unsigned long plaintext_len, + u8 *iv, u8 *hash_subkey, const u8 *aad, + unsigned long aad_len, u8 *auth_tag, + unsigned long auth_tag_len); + +static void (*aesni_gcm_dec_tfm)(void *ctx, + struct gcm_context_data *data, u8 *out, + const u8 *in, unsigned long ciphertext_len, + u8 *iv, u8 *hash_subkey, const u8 *aad, + unsigned long aad_len, u8 *auth_tag, + unsigned long auth_tag_len); + +static inline struct +aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm) +{ + unsigned long align = AESNI_ALIGN; + + if (align <= crypto_tfm_ctx_alignment()) + align = 1; + return PTR_ALIGN(crypto_aead_ctx(tfm), align); +} + +static inline struct +generic_gcmaes_ctx *generic_gcmaes_ctx_get(struct crypto_aead *tfm) +{ + unsigned long align = AESNI_ALIGN; + + if (align <= crypto_tfm_ctx_alignment()) + align = 1; + return PTR_ALIGN(crypto_aead_ctx(tfm), align); +} +#endif + +static inline struct crypto_aes_ctx *aes_ctx(void *raw_ctx) +{ + unsigned long addr = (unsigned long)raw_ctx; + unsigned long align = AESNI_ALIGN; + + if (align <= crypto_tfm_ctx_alignment()) + align = 1; + return (struct crypto_aes_ctx *)ALIGN(addr, align); +} + +static int aes_set_key_common(struct crypto_tfm *tfm, void *raw_ctx, + const u8 *in_key, unsigned int key_len) +{ + struct crypto_aes_ctx *ctx = aes_ctx(raw_ctx); + u32 *flags = &tfm->crt_flags; + int err; + + if (key_len != AES_KEYSIZE_128 && key_len != AES_KEYSIZE_192 && + key_len != AES_KEYSIZE_256) { + *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; + return -EINVAL; + } + + if (!irq_fpu_usable()) + err = crypto_aes_expand_key(ctx, in_key, key_len); + else { + kernel_fpu_begin(); + err = aesni_set_key(ctx, in_key, key_len); + kernel_fpu_end(); + } + + return err; +} + +static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len) +{ + return aes_set_key_common(tfm, crypto_tfm_ctx(tfm), in_key, key_len); +} + +static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); + + if (!irq_fpu_usable()) + crypto_aes_encrypt_x86(ctx, dst, src); + else { + kernel_fpu_begin(); + aesni_enc(ctx, dst, src); + kernel_fpu_end(); + } +} + +static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); + + if (!irq_fpu_usable()) + crypto_aes_decrypt_x86(ctx, dst, src); + else { + kernel_fpu_begin(); + aesni_dec(ctx, dst, src); + kernel_fpu_end(); + } +} + +static void __aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); + + aesni_enc(ctx, dst, src); +} + +static void __aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); + + aesni_dec(ctx, dst, src); +} + +static int aesni_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int len) +{ + return aes_set_key_common(crypto_skcipher_tfm(tfm), + crypto_skcipher_ctx(tfm), key, len); +} + +static int ecb_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, true); + + kernel_fpu_begin(); + while ((nbytes = walk.nbytes)) { + aesni_ecb_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr, + nbytes & AES_BLOCK_MASK); + nbytes &= AES_BLOCK_SIZE - 1; + err = skcipher_walk_done(&walk, nbytes); + } + kernel_fpu_end(); + + return err; +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, true); + + kernel_fpu_begin(); + while ((nbytes = walk.nbytes)) { + aesni_ecb_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr, + nbytes & AES_BLOCK_MASK); + nbytes &= AES_BLOCK_SIZE - 1; + err = skcipher_walk_done(&walk, nbytes); + } + kernel_fpu_end(); + + return err; +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, true); + + kernel_fpu_begin(); + while ((nbytes = walk.nbytes)) { + aesni_cbc_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr, + nbytes & AES_BLOCK_MASK, walk.iv); + nbytes &= AES_BLOCK_SIZE - 1; + err = skcipher_walk_done(&walk, nbytes); + } + kernel_fpu_end(); + + return err; +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, true); + + kernel_fpu_begin(); + while ((nbytes = walk.nbytes)) { + aesni_cbc_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr, + nbytes & AES_BLOCK_MASK, walk.iv); + nbytes &= AES_BLOCK_SIZE - 1; + err = skcipher_walk_done(&walk, nbytes); + } + kernel_fpu_end(); + + return err; +} + +#ifdef CONFIG_X86_64 +static void ctr_crypt_final(struct crypto_aes_ctx *ctx, + struct skcipher_walk *walk) +{ + u8 *ctrblk = walk->iv; + u8 keystream[AES_BLOCK_SIZE]; + u8 *src = walk->src.virt.addr; + u8 *dst = walk->dst.virt.addr; + unsigned int nbytes = walk->nbytes; + + aesni_enc(ctx, keystream, ctrblk); + crypto_xor_cpy(dst, keystream, src, nbytes); + + crypto_inc(ctrblk, AES_BLOCK_SIZE); +} + +#ifdef CONFIG_AS_AVX +static void aesni_ctr_enc_avx_tfm(struct crypto_aes_ctx *ctx, u8 *out, + const u8 *in, unsigned int len, u8 *iv) +{ + /* + * based on key length, override with the by8 version + * of ctr mode encryption/decryption for improved performance + * aes_set_key_common() ensures that key length is one of + * {128,192,256} + */ + if (ctx->key_length == AES_KEYSIZE_128) + aes_ctr_enc_128_avx_by8(in, iv, (void *)ctx, out, len); + else if (ctx->key_length == AES_KEYSIZE_192) + aes_ctr_enc_192_avx_by8(in, iv, (void *)ctx, out, len); + else + aes_ctr_enc_256_avx_by8(in, iv, (void *)ctx, out, len); +} +#endif + +static int ctr_crypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, true); + + kernel_fpu_begin(); + while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) { + aesni_ctr_enc_tfm(ctx, walk.dst.virt.addr, walk.src.virt.addr, + nbytes & AES_BLOCK_MASK, walk.iv); + nbytes &= AES_BLOCK_SIZE - 1; + err = skcipher_walk_done(&walk, nbytes); + } + if (walk.nbytes) { + ctr_crypt_final(ctx, &walk); + err = skcipher_walk_done(&walk, 0); + } + kernel_fpu_end(); + + return err; +} + +static int xts_aesni_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ + struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + int err; + + err = xts_verify_key(tfm, key, keylen); + if (err) + return err; + + keylen /= 2; + + /* first half of xts-key is for crypt */ + err = aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_crypt_ctx, + key, keylen); + if (err) + return err; + + /* second half of xts-key is for tweak */ + return aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_tweak_ctx, + key + keylen, keylen); +} + + +static void aesni_xts_tweak(void *ctx, u8 *out, const u8 *in) +{ + aesni_enc(ctx, out, in); +} + +static void aesni_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(aesni_enc)); +} + +static void aesni_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(aesni_dec)); +} + +static void aesni_xts_enc8(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + aesni_xts_crypt8(ctx, (u8 *)dst, (const u8 *)src, true, (u8 *)iv); +} + +static void aesni_xts_dec8(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + aesni_xts_crypt8(ctx, (u8 *)dst, (const u8 *)src, false, (u8 *)iv); +} + +static const struct common_glue_ctx aesni_enc_xts = { + .num_funcs = 2, + .fpu_blocks_limit = 1, + + .funcs = { { + .num_blocks = 8, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_enc8) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_enc) } + } } +}; + +static const struct common_glue_ctx aesni_dec_xts = { + .num_funcs = 2, + .fpu_blocks_limit = 1, + + .funcs = { { + .num_blocks = 8, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_dec8) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_dec) } + } } +}; + +static int xts_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&aesni_enc_xts, req, + XTS_TWEAK_CAST(aesni_xts_tweak), + aes_ctx(ctx->raw_tweak_ctx), + aes_ctx(ctx->raw_crypt_ctx)); +} + +static int xts_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&aesni_dec_xts, req, + XTS_TWEAK_CAST(aesni_xts_tweak), + aes_ctx(ctx->raw_tweak_ctx), + aes_ctx(ctx->raw_crypt_ctx)); +} + +static int rfc4106_init(struct crypto_aead *aead) +{ + struct cryptd_aead *cryptd_tfm; + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_tfm = cryptd_alloc_aead("__driver-gcm-aes-aesni", + CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(cryptd_tfm)) + return PTR_ERR(cryptd_tfm); + + *ctx = cryptd_tfm; + crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); + return 0; +} + +static void rfc4106_exit(struct crypto_aead *aead) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_free_aead(*ctx); +} + +static int +rfc4106_set_hash_subkey(u8 *hash_subkey, const u8 *key, unsigned int key_len) +{ + struct crypto_cipher *tfm; + int ret; + + tfm = crypto_alloc_cipher("aes", 0, 0); + if (IS_ERR(tfm)) + return PTR_ERR(tfm); + + ret = crypto_cipher_setkey(tfm, key, key_len); + if (ret) + goto out_free_cipher; + + /* Clear the data in the hash sub key container to zero.*/ + /* We want to cipher all zeros to create the hash sub key. */ + memset(hash_subkey, 0, RFC4106_HASH_SUBKEY_SIZE); + + crypto_cipher_encrypt_one(tfm, hash_subkey, hash_subkey); + +out_free_cipher: + crypto_free_cipher(tfm); + return ret; +} + +static int common_rfc4106_set_key(struct crypto_aead *aead, const u8 *key, + unsigned int key_len) +{ + struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(aead); + + if (key_len < 4) { + crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + /*Account for 4 byte nonce at the end.*/ + key_len -= 4; + + memcpy(ctx->nonce, key + key_len, sizeof(ctx->nonce)); + + return aes_set_key_common(crypto_aead_tfm(aead), + &ctx->aes_key_expanded, key, key_len) ?: + rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len); +} + +static int gcmaes_wrapper_set_key(struct crypto_aead *parent, const u8 *key, + unsigned int key_len) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(parent); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setkey(&cryptd_tfm->base, key, key_len); +} + +static int common_rfc4106_set_authsize(struct crypto_aead *aead, + unsigned int authsize) +{ + switch (authsize) { + case 8: + case 12: + case 16: + break; + default: + return -EINVAL; + } + + return 0; +} + +/* This is the Integrity Check Value (aka the authentication tag length and can + * be 8, 12 or 16 bytes long. */ +static int gcmaes_wrapper_set_authsize(struct crypto_aead *parent, + unsigned int authsize) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(parent); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setauthsize(&cryptd_tfm->base, authsize); +} + +static int generic_gcmaes_set_authsize(struct crypto_aead *tfm, + unsigned int authsize) +{ + switch (authsize) { + case 4: + case 8: + case 12: + case 13: + case 14: + case 15: + case 16: + break; + default: + return -EINVAL; + } + + return 0; +} + +static int gcmaes_crypt_by_sg(bool enc, struct aead_request *req, + unsigned int assoclen, u8 *hash_subkey, + u8 *iv, void *aes_ctx) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + unsigned long auth_tag_len = crypto_aead_authsize(tfm); + struct gcm_context_data data AESNI_ALIGN_ATTR; + struct scatter_walk dst_sg_walk = {}; + unsigned long left = req->cryptlen; + unsigned long len, srclen, dstlen; + struct scatter_walk assoc_sg_walk; + struct scatter_walk src_sg_walk; + struct scatterlist src_start[2]; + struct scatterlist dst_start[2]; + struct scatterlist *src_sg; + struct scatterlist *dst_sg; + u8 *src, *dst, *assoc; + u8 *assocmem = NULL; + u8 authTag[16]; + + if (!enc) + left -= auth_tag_len; + + /* Linearize assoc, if not already linear */ + if (req->src->length >= assoclen && req->src->length && + (!PageHighMem(sg_page(req->src)) || + req->src->offset + req->src->length <= PAGE_SIZE)) { + scatterwalk_start(&assoc_sg_walk, req->src); + assoc = scatterwalk_map(&assoc_sg_walk); + } else { + /* assoc can be any length, so must be on heap */ + assocmem = kmalloc(assoclen, GFP_ATOMIC); + if (unlikely(!assocmem)) + return -ENOMEM; + assoc = assocmem; + + scatterwalk_map_and_copy(assoc, req->src, 0, assoclen, 0); + } + + if (left) { + src_sg = scatterwalk_ffwd(src_start, req->src, req->assoclen); + scatterwalk_start(&src_sg_walk, src_sg); + if (req->src != req->dst) { + dst_sg = scatterwalk_ffwd(dst_start, req->dst, + req->assoclen); + scatterwalk_start(&dst_sg_walk, dst_sg); + } + } + + kernel_fpu_begin(); + aesni_gcm_init(aes_ctx, &data, iv, + hash_subkey, assoc, assoclen); + if (req->src != req->dst) { + while (left) { + src = scatterwalk_map(&src_sg_walk); + dst = scatterwalk_map(&dst_sg_walk); + srclen = scatterwalk_clamp(&src_sg_walk, left); + dstlen = scatterwalk_clamp(&dst_sg_walk, left); + len = min(srclen, dstlen); + if (len) { + if (enc) + aesni_gcm_enc_update(aes_ctx, &data, + dst, src, len); + else + aesni_gcm_dec_update(aes_ctx, &data, + dst, src, len); + } + left -= len; + + scatterwalk_unmap(src); + scatterwalk_unmap(dst); + scatterwalk_advance(&src_sg_walk, len); + scatterwalk_advance(&dst_sg_walk, len); + scatterwalk_done(&src_sg_walk, 0, left); + scatterwalk_done(&dst_sg_walk, 1, left); + } + } else { + while (left) { + dst = src = scatterwalk_map(&src_sg_walk); + len = scatterwalk_clamp(&src_sg_walk, left); + if (len) { + if (enc) + aesni_gcm_enc_update(aes_ctx, &data, + src, src, len); + else + aesni_gcm_dec_update(aes_ctx, &data, + src, src, len); + } + left -= len; + scatterwalk_unmap(src); + scatterwalk_advance(&src_sg_walk, len); + scatterwalk_done(&src_sg_walk, 1, left); + } + } + aesni_gcm_finalize(aes_ctx, &data, authTag, auth_tag_len); + kernel_fpu_end(); + + if (!assocmem) + scatterwalk_unmap(assoc); + else + kfree(assocmem); + + if (!enc) { + u8 authTagMsg[16]; + + /* Copy out original authTag */ + scatterwalk_map_and_copy(authTagMsg, req->src, + req->assoclen + req->cryptlen - + auth_tag_len, + auth_tag_len, 0); + + /* Compare generated tag with passed in tag. */ + return crypto_memneq(authTagMsg, authTag, auth_tag_len) ? + -EBADMSG : 0; + } + + /* Copy in the authTag */ + scatterwalk_map_and_copy(authTag, req->dst, + req->assoclen + req->cryptlen, + auth_tag_len, 1); + + return 0; +} + +static int gcmaes_encrypt(struct aead_request *req, unsigned int assoclen, + u8 *hash_subkey, u8 *iv, void *aes_ctx) +{ + u8 one_entry_in_sg = 0; + u8 *src, *dst, *assoc; + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + unsigned long auth_tag_len = crypto_aead_authsize(tfm); + struct scatter_walk src_sg_walk; + struct scatter_walk dst_sg_walk = {}; + struct gcm_context_data data AESNI_ALIGN_ATTR; + + if (((struct crypto_aes_ctx *)aes_ctx)->key_length != AES_KEYSIZE_128 || + aesni_gcm_enc_tfm == aesni_gcm_enc || + req->cryptlen < AVX_GEN2_OPTSIZE) { + return gcmaes_crypt_by_sg(true, req, assoclen, hash_subkey, iv, + aes_ctx); + } + if (sg_is_last(req->src) && + (!PageHighMem(sg_page(req->src)) || + req->src->offset + req->src->length <= PAGE_SIZE) && + sg_is_last(req->dst) && + (!PageHighMem(sg_page(req->dst)) || + req->dst->offset + req->dst->length <= PAGE_SIZE)) { + one_entry_in_sg = 1; + scatterwalk_start(&src_sg_walk, req->src); + assoc = scatterwalk_map(&src_sg_walk); + src = assoc + req->assoclen; + dst = src; + if (unlikely(req->src != req->dst)) { + scatterwalk_start(&dst_sg_walk, req->dst); + dst = scatterwalk_map(&dst_sg_walk) + req->assoclen; + } + } else { + /* Allocate memory for src, dst, assoc */ + assoc = kmalloc(req->cryptlen + auth_tag_len + req->assoclen, + GFP_ATOMIC); + if (unlikely(!assoc)) + return -ENOMEM; + scatterwalk_map_and_copy(assoc, req->src, 0, + req->assoclen + req->cryptlen, 0); + src = assoc + req->assoclen; + dst = src; + } + + kernel_fpu_begin(); + aesni_gcm_enc_tfm(aes_ctx, &data, dst, src, req->cryptlen, iv, + hash_subkey, assoc, assoclen, + dst + req->cryptlen, auth_tag_len); + kernel_fpu_end(); + + /* The authTag (aka the Integrity Check Value) needs to be written + * back to the packet. */ + if (one_entry_in_sg) { + if (unlikely(req->src != req->dst)) { + scatterwalk_unmap(dst - req->assoclen); + scatterwalk_advance(&dst_sg_walk, req->dst->length); + scatterwalk_done(&dst_sg_walk, 1, 0); + } + scatterwalk_unmap(assoc); + scatterwalk_advance(&src_sg_walk, req->src->length); + scatterwalk_done(&src_sg_walk, req->src == req->dst, 0); + } else { + scatterwalk_map_and_copy(dst, req->dst, req->assoclen, + req->cryptlen + auth_tag_len, 1); + kfree(assoc); + } + return 0; +} + +static int gcmaes_decrypt(struct aead_request *req, unsigned int assoclen, + u8 *hash_subkey, u8 *iv, void *aes_ctx) +{ + u8 one_entry_in_sg = 0; + u8 *src, *dst, *assoc; + unsigned long tempCipherLen = 0; + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + unsigned long auth_tag_len = crypto_aead_authsize(tfm); + u8 authTag[16]; + struct scatter_walk src_sg_walk; + struct scatter_walk dst_sg_walk = {}; + struct gcm_context_data data AESNI_ALIGN_ATTR; + int retval = 0; + + if (((struct crypto_aes_ctx *)aes_ctx)->key_length != AES_KEYSIZE_128 || + aesni_gcm_enc_tfm == aesni_gcm_enc || + req->cryptlen < AVX_GEN2_OPTSIZE) { + return gcmaes_crypt_by_sg(false, req, assoclen, hash_subkey, iv, + aes_ctx); + } + tempCipherLen = (unsigned long)(req->cryptlen - auth_tag_len); + + if (sg_is_last(req->src) && + (!PageHighMem(sg_page(req->src)) || + req->src->offset + req->src->length <= PAGE_SIZE) && + sg_is_last(req->dst) && req->dst->length && + (!PageHighMem(sg_page(req->dst)) || + req->dst->offset + req->dst->length <= PAGE_SIZE)) { + one_entry_in_sg = 1; + scatterwalk_start(&src_sg_walk, req->src); + assoc = scatterwalk_map(&src_sg_walk); + src = assoc + req->assoclen; + dst = src; + if (unlikely(req->src != req->dst)) { + scatterwalk_start(&dst_sg_walk, req->dst); + dst = scatterwalk_map(&dst_sg_walk) + req->assoclen; + } + } else { + /* Allocate memory for src, dst, assoc */ + assoc = kmalloc(req->cryptlen + req->assoclen, GFP_ATOMIC); + if (!assoc) + return -ENOMEM; + scatterwalk_map_and_copy(assoc, req->src, 0, + req->assoclen + req->cryptlen, 0); + src = assoc + req->assoclen; + dst = src; + } + + + kernel_fpu_begin(); + aesni_gcm_dec_tfm(aes_ctx, &data, dst, src, tempCipherLen, iv, + hash_subkey, assoc, assoclen, + authTag, auth_tag_len); + kernel_fpu_end(); + + /* Compare generated tag with passed in tag. */ + retval = crypto_memneq(src + tempCipherLen, authTag, auth_tag_len) ? + -EBADMSG : 0; + + if (one_entry_in_sg) { + if (unlikely(req->src != req->dst)) { + scatterwalk_unmap(dst - req->assoclen); + scatterwalk_advance(&dst_sg_walk, req->dst->length); + scatterwalk_done(&dst_sg_walk, 1, 0); + } + scatterwalk_unmap(assoc); + scatterwalk_advance(&src_sg_walk, req->src->length); + scatterwalk_done(&src_sg_walk, req->src == req->dst, 0); + } else { + scatterwalk_map_and_copy(dst, req->dst, req->assoclen, + tempCipherLen, 1); + kfree(assoc); + } + return retval; + +} + +static int helper_rfc4106_encrypt(struct aead_request *req) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); + void *aes_ctx = &(ctx->aes_key_expanded); + u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN))); + unsigned int i; + __be32 counter = cpu_to_be32(1); + + /* Assuming we are supporting rfc4106 64-bit extended */ + /* sequence numbers We need to have the AAD length equal */ + /* to 16 or 20 bytes */ + if (unlikely(req->assoclen != 16 && req->assoclen != 20)) + return -EINVAL; + + /* IV below built */ + for (i = 0; i < 4; i++) + *(iv+i) = ctx->nonce[i]; + for (i = 0; i < 8; i++) + *(iv+4+i) = req->iv[i]; + *((__be32 *)(iv+12)) = counter; + + return gcmaes_encrypt(req, req->assoclen - 8, ctx->hash_subkey, iv, + aes_ctx); +} + +static int helper_rfc4106_decrypt(struct aead_request *req) +{ + __be32 counter = cpu_to_be32(1); + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); + void *aes_ctx = &(ctx->aes_key_expanded); + u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN))); + unsigned int i; + + if (unlikely(req->assoclen != 16 && req->assoclen != 20)) + return -EINVAL; + + /* Assuming we are supporting rfc4106 64-bit extended */ + /* sequence numbers We need to have the AAD length */ + /* equal to 16 or 20 bytes */ + + /* IV below built */ + for (i = 0; i < 4; i++) + *(iv+i) = ctx->nonce[i]; + for (i = 0; i < 8; i++) + *(iv+4+i) = req->iv[i]; + *((__be32 *)(iv+12)) = counter; + + return gcmaes_decrypt(req, req->assoclen - 8, ctx->hash_subkey, iv, + aes_ctx); +} + +static int gcmaes_wrapper_encrypt(struct aead_request *req) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(tfm); + struct cryptd_aead *cryptd_tfm = *ctx; + + tfm = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + tfm = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, tfm); + + return crypto_aead_encrypt(req); +} + +static int gcmaes_wrapper_decrypt(struct aead_request *req) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(tfm); + struct cryptd_aead *cryptd_tfm = *ctx; + + tfm = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + tfm = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, tfm); + + return crypto_aead_decrypt(req); +} +#endif + +static struct crypto_alg aesni_algs[] = { { + .cra_name = "aes", + .cra_driver_name = "aes-aesni", + .cra_priority = 300, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = CRYPTO_AES_CTX_SIZE, + .cra_module = THIS_MODULE, + .cra_u = { + .cipher = { + .cia_min_keysize = AES_MIN_KEY_SIZE, + .cia_max_keysize = AES_MAX_KEY_SIZE, + .cia_setkey = aes_set_key, + .cia_encrypt = aes_encrypt, + .cia_decrypt = aes_decrypt + } + } +}, { + .cra_name = "__aes", + .cra_driver_name = "__aes-aesni", + .cra_priority = 300, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER | CRYPTO_ALG_INTERNAL, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = CRYPTO_AES_CTX_SIZE, + .cra_module = THIS_MODULE, + .cra_u = { + .cipher = { + .cia_min_keysize = AES_MIN_KEY_SIZE, + .cia_max_keysize = AES_MAX_KEY_SIZE, + .cia_setkey = aes_set_key, + .cia_encrypt = __aes_encrypt, + .cia_decrypt = __aes_decrypt + } + } +} }; + +static struct skcipher_alg aesni_skciphers[] = { + { + .base = { + .cra_name = "__ecb(aes)", + .cra_driver_name = "__ecb-aes-aesni", + .cra_priority = 400, + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = CRYPTO_AES_CTX_SIZE, + .cra_module = THIS_MODULE, + }, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .setkey = aesni_skcipher_setkey, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base = { + .cra_name = "__cbc(aes)", + .cra_driver_name = "__cbc-aes-aesni", + .cra_priority = 400, + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = CRYPTO_AES_CTX_SIZE, + .cra_module = THIS_MODULE, + }, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .setkey = aesni_skcipher_setkey, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, +#ifdef CONFIG_X86_64 + }, { + .base = { + .cra_name = "__ctr(aes)", + .cra_driver_name = "__ctr-aes-aesni", + .cra_priority = 400, + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = 1, + .cra_ctxsize = CRYPTO_AES_CTX_SIZE, + .cra_module = THIS_MODULE, + }, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .chunksize = AES_BLOCK_SIZE, + .setkey = aesni_skcipher_setkey, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, { + .base = { + .cra_name = "__xts(aes)", + .cra_driver_name = "__xts-aes-aesni", + .cra_priority = 401, + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = XTS_AES_CTX_SIZE, + .cra_module = THIS_MODULE, + }, + .min_keysize = 2 * AES_MIN_KEY_SIZE, + .max_keysize = 2 * AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .setkey = xts_aesni_setkey, + .encrypt = xts_encrypt, + .decrypt = xts_decrypt, +#endif + } +}; + +static +struct simd_skcipher_alg *aesni_simd_skciphers[ARRAY_SIZE(aesni_skciphers)]; + +static struct { + const char *algname; + const char *drvname; + const char *basename; + struct simd_skcipher_alg *simd; +} aesni_simd_skciphers2[] = { +#if (defined(MODULE) && IS_ENABLED(CONFIG_CRYPTO_PCBC)) || \ + IS_BUILTIN(CONFIG_CRYPTO_PCBC) + { + .algname = "pcbc(aes)", + .drvname = "pcbc-aes-aesni", + .basename = "fpu(pcbc(__aes-aesni))", + }, +#endif +}; + +#ifdef CONFIG_X86_64 +static int generic_gcmaes_set_key(struct crypto_aead *aead, const u8 *key, + unsigned int key_len) +{ + struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(aead); + + return aes_set_key_common(crypto_aead_tfm(aead), + &ctx->aes_key_expanded, key, key_len) ?: + rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len); +} + +static int generic_gcmaes_encrypt(struct aead_request *req) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(tfm); + void *aes_ctx = &(ctx->aes_key_expanded); + u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN))); + __be32 counter = cpu_to_be32(1); + + memcpy(iv, req->iv, 12); + *((__be32 *)(iv+12)) = counter; + + return gcmaes_encrypt(req, req->assoclen, ctx->hash_subkey, iv, + aes_ctx); +} + +static int generic_gcmaes_decrypt(struct aead_request *req) +{ + __be32 counter = cpu_to_be32(1); + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(tfm); + void *aes_ctx = &(ctx->aes_key_expanded); + u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN))); + + memcpy(iv, req->iv, 12); + *((__be32 *)(iv+12)) = counter; + + return gcmaes_decrypt(req, req->assoclen, ctx->hash_subkey, iv, + aes_ctx); +} + +static int generic_gcmaes_init(struct crypto_aead *aead) +{ + struct cryptd_aead *cryptd_tfm; + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_tfm = cryptd_alloc_aead("__driver-generic-gcm-aes-aesni", + CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(cryptd_tfm)) + return PTR_ERR(cryptd_tfm); + + *ctx = cryptd_tfm; + crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); + + return 0; +} + +static void generic_gcmaes_exit(struct crypto_aead *aead) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_free_aead(*ctx); +} + +static struct aead_alg aesni_aead_algs[] = { { + .setkey = common_rfc4106_set_key, + .setauthsize = common_rfc4106_set_authsize, + .encrypt = helper_rfc4106_encrypt, + .decrypt = helper_rfc4106_decrypt, + .ivsize = GCM_RFC4106_IV_SIZE, + .maxauthsize = 16, + .base = { + .cra_name = "__gcm-aes-aesni", + .cra_driver_name = "__driver-gcm-aes-aesni", + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct aesni_rfc4106_gcm_ctx), + .cra_alignmask = AESNI_ALIGN - 1, + .cra_module = THIS_MODULE, + }, +}, { + .init = rfc4106_init, + .exit = rfc4106_exit, + .setkey = gcmaes_wrapper_set_key, + .setauthsize = gcmaes_wrapper_set_authsize, + .encrypt = gcmaes_wrapper_encrypt, + .decrypt = gcmaes_wrapper_decrypt, + .ivsize = GCM_RFC4106_IV_SIZE, + .maxauthsize = 16, + .base = { + .cra_name = "rfc4106(gcm(aes))", + .cra_driver_name = "rfc4106-gcm-aesni", + .cra_priority = 400, + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct cryptd_aead *), + .cra_module = THIS_MODULE, + }, +}, { + .setkey = generic_gcmaes_set_key, + .setauthsize = generic_gcmaes_set_authsize, + .encrypt = generic_gcmaes_encrypt, + .decrypt = generic_gcmaes_decrypt, + .ivsize = GCM_AES_IV_SIZE, + .maxauthsize = 16, + .base = { + .cra_name = "__generic-gcm-aes-aesni", + .cra_driver_name = "__driver-generic-gcm-aes-aesni", + .cra_priority = 0, + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct generic_gcmaes_ctx), + .cra_alignmask = AESNI_ALIGN - 1, + .cra_module = THIS_MODULE, + }, +}, { + .init = generic_gcmaes_init, + .exit = generic_gcmaes_exit, + .setkey = gcmaes_wrapper_set_key, + .setauthsize = gcmaes_wrapper_set_authsize, + .encrypt = gcmaes_wrapper_encrypt, + .decrypt = gcmaes_wrapper_decrypt, + .ivsize = GCM_AES_IV_SIZE, + .maxauthsize = 16, + .base = { + .cra_name = "gcm(aes)", + .cra_driver_name = "generic-gcm-aesni", + .cra_priority = 400, + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct cryptd_aead *), + .cra_module = THIS_MODULE, + }, +} }; +#else +static struct aead_alg aesni_aead_algs[0]; +#endif + + +static const struct x86_cpu_id aesni_cpu_id[] = { + X86_FEATURE_MATCH(X86_FEATURE_AES), + {} +}; +MODULE_DEVICE_TABLE(x86cpu, aesni_cpu_id); + +static void aesni_free_simds(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(aesni_simd_skciphers) && + aesni_simd_skciphers[i]; i++) + simd_skcipher_free(aesni_simd_skciphers[i]); + + for (i = 0; i < ARRAY_SIZE(aesni_simd_skciphers2); i++) + if (aesni_simd_skciphers2[i].simd) + simd_skcipher_free(aesni_simd_skciphers2[i].simd); +} + +static int __init aesni_init(void) +{ + struct simd_skcipher_alg *simd; + const char *basename; + const char *algname; + const char *drvname; + int err; + int i; + + if (!x86_match_cpu(aesni_cpu_id)) + return -ENODEV; +#ifdef CONFIG_X86_64 +#ifdef CONFIG_AS_AVX2 + if (boot_cpu_has(X86_FEATURE_AVX2)) { + pr_info("AVX2 version of gcm_enc/dec engaged.\n"); + aesni_gcm_enc_tfm = aesni_gcm_enc_avx2; + aesni_gcm_dec_tfm = aesni_gcm_dec_avx2; + } else +#endif +#ifdef CONFIG_AS_AVX + if (boot_cpu_has(X86_FEATURE_AVX)) { + pr_info("AVX version of gcm_enc/dec engaged.\n"); + aesni_gcm_enc_tfm = aesni_gcm_enc_avx; + aesni_gcm_dec_tfm = aesni_gcm_dec_avx; + } else +#endif + { + pr_info("SSE version of gcm_enc/dec engaged.\n"); + aesni_gcm_enc_tfm = aesni_gcm_enc; + aesni_gcm_dec_tfm = aesni_gcm_dec; + } + aesni_ctr_enc_tfm = aesni_ctr_enc; +#ifdef CONFIG_AS_AVX + if (boot_cpu_has(X86_FEATURE_AVX)) { + /* optimize performance of ctr mode encryption transform */ + aesni_ctr_enc_tfm = aesni_ctr_enc_avx_tfm; + pr_info("AES CTR mode by8 optimization enabled\n"); + } +#endif +#endif + + err = crypto_fpu_init(); + if (err) + return err; + + err = crypto_register_algs(aesni_algs, ARRAY_SIZE(aesni_algs)); + if (err) + goto fpu_exit; + + err = crypto_register_skciphers(aesni_skciphers, + ARRAY_SIZE(aesni_skciphers)); + if (err) + goto unregister_algs; + + err = crypto_register_aeads(aesni_aead_algs, + ARRAY_SIZE(aesni_aead_algs)); + if (err) + goto unregister_skciphers; + + for (i = 0; i < ARRAY_SIZE(aesni_skciphers); i++) { + algname = aesni_skciphers[i].base.cra_name + 2; + drvname = aesni_skciphers[i].base.cra_driver_name + 2; + basename = aesni_skciphers[i].base.cra_driver_name; + simd = simd_skcipher_create_compat(algname, drvname, basename); + err = PTR_ERR(simd); + if (IS_ERR(simd)) + goto unregister_simds; + + aesni_simd_skciphers[i] = simd; + } + + for (i = 0; i < ARRAY_SIZE(aesni_simd_skciphers2); i++) { + algname = aesni_simd_skciphers2[i].algname; + drvname = aesni_simd_skciphers2[i].drvname; + basename = aesni_simd_skciphers2[i].basename; + simd = simd_skcipher_create_compat(algname, drvname, basename); + err = PTR_ERR(simd); + if (IS_ERR(simd)) + continue; + + aesni_simd_skciphers2[i].simd = simd; + } + + return 0; + +unregister_simds: + aesni_free_simds(); + crypto_unregister_aeads(aesni_aead_algs, ARRAY_SIZE(aesni_aead_algs)); +unregister_skciphers: + crypto_unregister_skciphers(aesni_skciphers, + ARRAY_SIZE(aesni_skciphers)); +unregister_algs: + crypto_unregister_algs(aesni_algs, ARRAY_SIZE(aesni_algs)); +fpu_exit: + crypto_fpu_exit(); + return err; +} + +static void __exit aesni_exit(void) +{ + aesni_free_simds(); + crypto_unregister_aeads(aesni_aead_algs, ARRAY_SIZE(aesni_aead_algs)); + crypto_unregister_skciphers(aesni_skciphers, + ARRAY_SIZE(aesni_skciphers)); + crypto_unregister_algs(aesni_algs, ARRAY_SIZE(aesni_algs)); + + crypto_fpu_exit(); +} + +late_initcall(aesni_init); +module_exit(aesni_exit); + +MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_CRYPTO("aes"); diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S new file mode 100644 index 000000000..8c1fcb6ba --- /dev/null +++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S @@ -0,0 +1,383 @@ +/* + * Blowfish Cipher Algorithm (x86_64) + * + * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> + +.file "blowfish-x86_64-asm.S" +.text + +/* structure of crypto context */ +#define p 0 +#define s0 ((16 + 2) * 4) +#define s1 ((16 + 2 + (1 * 256)) * 4) +#define s2 ((16 + 2 + (2 * 256)) * 4) +#define s3 ((16 + 2 + (3 * 256)) * 4) + +/* register macros */ +#define CTX %r12 +#define RIO %rsi + +#define RX0 %rax +#define RX1 %rbx +#define RX2 %rcx +#define RX3 %rdx + +#define RX0d %eax +#define RX1d %ebx +#define RX2d %ecx +#define RX3d %edx + +#define RX0bl %al +#define RX1bl %bl +#define RX2bl %cl +#define RX3bl %dl + +#define RX0bh %ah +#define RX1bh %bh +#define RX2bh %ch +#define RX3bh %dh + +#define RT0 %rdi +#define RT1 %rsi +#define RT2 %r8 +#define RT3 %r9 + +#define RT0d %edi +#define RT1d %esi +#define RT2d %r8d +#define RT3d %r9d + +#define RKEY %r10 + +/*********************************************************************** + * 1-way blowfish + ***********************************************************************/ +#define F() \ + rorq $16, RX0; \ + movzbl RX0bh, RT0d; \ + movzbl RX0bl, RT1d; \ + rolq $16, RX0; \ + movl s0(CTX,RT0,4), RT0d; \ + addl s1(CTX,RT1,4), RT0d; \ + movzbl RX0bh, RT1d; \ + movzbl RX0bl, RT2d; \ + rolq $32, RX0; \ + xorl s2(CTX,RT1,4), RT0d; \ + addl s3(CTX,RT2,4), RT0d; \ + xorq RT0, RX0; + +#define add_roundkey_enc(n) \ + xorq p+4*(n)(CTX), RX0; + +#define round_enc(n) \ + add_roundkey_enc(n); \ + \ + F(); \ + F(); + +#define add_roundkey_dec(n) \ + movq p+4*(n-1)(CTX), RT0; \ + rorq $32, RT0; \ + xorq RT0, RX0; + +#define round_dec(n) \ + add_roundkey_dec(n); \ + \ + F(); \ + F(); \ + +#define read_block() \ + movq (RIO), RX0; \ + rorq $32, RX0; \ + bswapq RX0; + +#define write_block() \ + bswapq RX0; \ + movq RX0, (RIO); + +#define xor_block() \ + bswapq RX0; \ + xorq RX0, (RIO); + +ENTRY(__blowfish_enc_blk) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + * %rcx: bool, if true: xor output + */ + movq %r12, %r11; + + movq %rdi, CTX; + movq %rsi, %r10; + movq %rdx, RIO; + + read_block(); + + round_enc(0); + round_enc(2); + round_enc(4); + round_enc(6); + round_enc(8); + round_enc(10); + round_enc(12); + round_enc(14); + add_roundkey_enc(16); + + movq %r11, %r12; + + movq %r10, RIO; + test %cl, %cl; + jnz .L__enc_xor; + + write_block(); + ret; +.L__enc_xor: + xor_block(); + ret; +ENDPROC(__blowfish_enc_blk) + +ENTRY(blowfish_dec_blk) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + */ + movq %r12, %r11; + + movq %rdi, CTX; + movq %rsi, %r10; + movq %rdx, RIO; + + read_block(); + + round_dec(17); + round_dec(15); + round_dec(13); + round_dec(11); + round_dec(9); + round_dec(7); + round_dec(5); + round_dec(3); + add_roundkey_dec(1); + + movq %r10, RIO; + write_block(); + + movq %r11, %r12; + + ret; +ENDPROC(blowfish_dec_blk) + +/********************************************************************** + 4-way blowfish, four blocks parallel + **********************************************************************/ + +/* F() for 4-way. Slower when used alone/1-way, but faster when used + * parallel/4-way (tested on AMD Phenom II & Intel Xeon E7330). + */ +#define F4(x) \ + movzbl x ## bh, RT1d; \ + movzbl x ## bl, RT3d; \ + rorq $16, x; \ + movzbl x ## bh, RT0d; \ + movzbl x ## bl, RT2d; \ + rorq $16, x; \ + movl s0(CTX,RT0,4), RT0d; \ + addl s1(CTX,RT2,4), RT0d; \ + xorl s2(CTX,RT1,4), RT0d; \ + addl s3(CTX,RT3,4), RT0d; \ + xorq RT0, x; + +#define add_preloaded_roundkey4() \ + xorq RKEY, RX0; \ + xorq RKEY, RX1; \ + xorq RKEY, RX2; \ + xorq RKEY, RX3; + +#define preload_roundkey_enc(n) \ + movq p+4*(n)(CTX), RKEY; + +#define add_roundkey_enc4(n) \ + add_preloaded_roundkey4(); \ + preload_roundkey_enc(n + 2); + +#define round_enc4(n) \ + add_roundkey_enc4(n); \ + \ + F4(RX0); \ + F4(RX1); \ + F4(RX2); \ + F4(RX3); \ + \ + F4(RX0); \ + F4(RX1); \ + F4(RX2); \ + F4(RX3); + +#define preload_roundkey_dec(n) \ + movq p+4*((n)-1)(CTX), RKEY; \ + rorq $32, RKEY; + +#define add_roundkey_dec4(n) \ + add_preloaded_roundkey4(); \ + preload_roundkey_dec(n - 2); + +#define round_dec4(n) \ + add_roundkey_dec4(n); \ + \ + F4(RX0); \ + F4(RX1); \ + F4(RX2); \ + F4(RX3); \ + \ + F4(RX0); \ + F4(RX1); \ + F4(RX2); \ + F4(RX3); + +#define read_block4() \ + movq (RIO), RX0; \ + rorq $32, RX0; \ + bswapq RX0; \ + \ + movq 8(RIO), RX1; \ + rorq $32, RX1; \ + bswapq RX1; \ + \ + movq 16(RIO), RX2; \ + rorq $32, RX2; \ + bswapq RX2; \ + \ + movq 24(RIO), RX3; \ + rorq $32, RX3; \ + bswapq RX3; + +#define write_block4() \ + bswapq RX0; \ + movq RX0, (RIO); \ + \ + bswapq RX1; \ + movq RX1, 8(RIO); \ + \ + bswapq RX2; \ + movq RX2, 16(RIO); \ + \ + bswapq RX3; \ + movq RX3, 24(RIO); + +#define xor_block4() \ + bswapq RX0; \ + xorq RX0, (RIO); \ + \ + bswapq RX1; \ + xorq RX1, 8(RIO); \ + \ + bswapq RX2; \ + xorq RX2, 16(RIO); \ + \ + bswapq RX3; \ + xorq RX3, 24(RIO); + +ENTRY(__blowfish_enc_blk_4way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + * %rcx: bool, if true: xor output + */ + pushq %r12; + pushq %rbx; + pushq %rcx; + + movq %rdi, CTX + movq %rsi, %r11; + movq %rdx, RIO; + + preload_roundkey_enc(0); + + read_block4(); + + round_enc4(0); + round_enc4(2); + round_enc4(4); + round_enc4(6); + round_enc4(8); + round_enc4(10); + round_enc4(12); + round_enc4(14); + add_preloaded_roundkey4(); + + popq %r12; + movq %r11, RIO; + + test %r12b, %r12b; + jnz .L__enc_xor4; + + write_block4(); + + popq %rbx; + popq %r12; + ret; + +.L__enc_xor4: + xor_block4(); + + popq %rbx; + popq %r12; + ret; +ENDPROC(__blowfish_enc_blk_4way) + +ENTRY(blowfish_dec_blk_4way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + */ + pushq %r12; + pushq %rbx; + + movq %rdi, CTX; + movq %rsi, %r11 + movq %rdx, RIO; + + preload_roundkey_dec(17); + read_block4(); + + round_dec4(17); + round_dec4(15); + round_dec4(13); + round_dec4(11); + round_dec4(9); + round_dec4(7); + round_dec4(5); + round_dec4(3); + add_preloaded_roundkey4(); + + movq %r11, RIO; + write_block4(); + + popq %rbx; + popq %r12; + + ret; +ENDPROC(blowfish_dec_blk_4way) diff --git a/arch/x86/crypto/blowfish_glue.c b/arch/x86/crypto/blowfish_glue.c new file mode 100644 index 000000000..3e0c07cc9 --- /dev/null +++ b/arch/x86/crypto/blowfish_glue.c @@ -0,0 +1,477 @@ +/* + * Glue Code for assembler optimized version of Blowfish + * + * Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by: + * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> + * CTR part based on code (crypto/ctr.c) by: + * (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <crypto/algapi.h> +#include <crypto/blowfish.h> +#include <crypto/internal/skcipher.h> +#include <linux/crypto.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> + +/* regular block cipher functions */ +asmlinkage void __blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src, + bool xor); +asmlinkage void blowfish_dec_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src); + +/* 4-way parallel cipher functions */ +asmlinkage void __blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +asmlinkage void blowfish_dec_blk_4way(struct bf_ctx *ctx, u8 *dst, + const u8 *src); + +static inline void blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src) +{ + __blowfish_enc_blk(ctx, dst, src, false); +} + +static inline void blowfish_enc_blk_xor(struct bf_ctx *ctx, u8 *dst, + const u8 *src) +{ + __blowfish_enc_blk(ctx, dst, src, true); +} + +static inline void blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst, + const u8 *src) +{ + __blowfish_enc_blk_4way(ctx, dst, src, false); +} + +static inline void blowfish_enc_blk_xor_4way(struct bf_ctx *ctx, u8 *dst, + const u8 *src) +{ + __blowfish_enc_blk_4way(ctx, dst, src, true); +} + +static void blowfish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + blowfish_enc_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static void blowfish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + blowfish_dec_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static int blowfish_setkey_skcipher(struct crypto_skcipher *tfm, + const u8 *key, unsigned int keylen) +{ + return blowfish_setkey(&tfm->base, key, keylen); +} + +static int ecb_crypt(struct skcipher_request *req, + void (*fn)(struct bf_ctx *, u8 *, const u8 *), + void (*fn_4way)(struct bf_ctx *, u8 *, const u8 *)) +{ + unsigned int bsize = BF_BLOCK_SIZE; + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct bf_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + u8 *wsrc = walk.src.virt.addr; + u8 *wdst = walk.dst.virt.addr; + + /* Process four block batch */ + if (nbytes >= bsize * 4) { + do { + fn_4way(ctx, wdst, wsrc); + + wsrc += bsize * 4; + wdst += bsize * 4; + nbytes -= bsize * 4; + } while (nbytes >= bsize * 4); + + if (nbytes < bsize) + goto done; + } + + /* Handle leftovers */ + do { + fn(ctx, wdst, wsrc); + + wsrc += bsize; + wdst += bsize; + nbytes -= bsize; + } while (nbytes >= bsize); + +done: + err = skcipher_walk_done(&walk, nbytes); + } + + return err; +} + +static int ecb_encrypt(struct skcipher_request *req) +{ + return ecb_crypt(req, blowfish_enc_blk, blowfish_enc_blk_4way); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return ecb_crypt(req, blowfish_dec_blk, blowfish_dec_blk_4way); +} + +static unsigned int __cbc_encrypt(struct bf_ctx *ctx, + struct skcipher_walk *walk) +{ + unsigned int bsize = BF_BLOCK_SIZE; + unsigned int nbytes = walk->nbytes; + u64 *src = (u64 *)walk->src.virt.addr; + u64 *dst = (u64 *)walk->dst.virt.addr; + u64 *iv = (u64 *)walk->iv; + + do { + *dst = *src ^ *iv; + blowfish_enc_blk(ctx, (u8 *)dst, (u8 *)dst); + iv = dst; + + src += 1; + dst += 1; + nbytes -= bsize; + } while (nbytes >= bsize); + + *(u64 *)walk->iv = *iv; + return nbytes; +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct bf_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + nbytes = __cbc_encrypt(ctx, &walk); + err = skcipher_walk_done(&walk, nbytes); + } + + return err; +} + +static unsigned int __cbc_decrypt(struct bf_ctx *ctx, + struct skcipher_walk *walk) +{ + unsigned int bsize = BF_BLOCK_SIZE; + unsigned int nbytes = walk->nbytes; + u64 *src = (u64 *)walk->src.virt.addr; + u64 *dst = (u64 *)walk->dst.virt.addr; + u64 ivs[4 - 1]; + u64 last_iv; + + /* Start of the last block. */ + src += nbytes / bsize - 1; + dst += nbytes / bsize - 1; + + last_iv = *src; + + /* Process four block batch */ + if (nbytes >= bsize * 4) { + do { + nbytes -= bsize * 4 - bsize; + src -= 4 - 1; + dst -= 4 - 1; + + ivs[0] = src[0]; + ivs[1] = src[1]; + ivs[2] = src[2]; + + blowfish_dec_blk_4way(ctx, (u8 *)dst, (u8 *)src); + + dst[1] ^= ivs[0]; + dst[2] ^= ivs[1]; + dst[3] ^= ivs[2]; + + nbytes -= bsize; + if (nbytes < bsize) + goto done; + + *dst ^= *(src - 1); + src -= 1; + dst -= 1; + } while (nbytes >= bsize * 4); + } + + /* Handle leftovers */ + for (;;) { + blowfish_dec_blk(ctx, (u8 *)dst, (u8 *)src); + + nbytes -= bsize; + if (nbytes < bsize) + break; + + *dst ^= *(src - 1); + src -= 1; + dst -= 1; + } + +done: + *dst ^= *(u64 *)walk->iv; + *(u64 *)walk->iv = last_iv; + + return nbytes; +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct bf_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + nbytes = __cbc_decrypt(ctx, &walk); + err = skcipher_walk_done(&walk, nbytes); + } + + return err; +} + +static void ctr_crypt_final(struct bf_ctx *ctx, struct skcipher_walk *walk) +{ + u8 *ctrblk = walk->iv; + u8 keystream[BF_BLOCK_SIZE]; + u8 *src = walk->src.virt.addr; + u8 *dst = walk->dst.virt.addr; + unsigned int nbytes = walk->nbytes; + + blowfish_enc_blk(ctx, keystream, ctrblk); + crypto_xor_cpy(dst, keystream, src, nbytes); + + crypto_inc(ctrblk, BF_BLOCK_SIZE); +} + +static unsigned int __ctr_crypt(struct bf_ctx *ctx, struct skcipher_walk *walk) +{ + unsigned int bsize = BF_BLOCK_SIZE; + unsigned int nbytes = walk->nbytes; + u64 *src = (u64 *)walk->src.virt.addr; + u64 *dst = (u64 *)walk->dst.virt.addr; + u64 ctrblk = be64_to_cpu(*(__be64 *)walk->iv); + __be64 ctrblocks[4]; + + /* Process four block batch */ + if (nbytes >= bsize * 4) { + do { + if (dst != src) { + dst[0] = src[0]; + dst[1] = src[1]; + dst[2] = src[2]; + dst[3] = src[3]; + } + + /* create ctrblks for parallel encrypt */ + ctrblocks[0] = cpu_to_be64(ctrblk++); + ctrblocks[1] = cpu_to_be64(ctrblk++); + ctrblocks[2] = cpu_to_be64(ctrblk++); + ctrblocks[3] = cpu_to_be64(ctrblk++); + + blowfish_enc_blk_xor_4way(ctx, (u8 *)dst, + (u8 *)ctrblocks); + + src += 4; + dst += 4; + } while ((nbytes -= bsize * 4) >= bsize * 4); + + if (nbytes < bsize) + goto done; + } + + /* Handle leftovers */ + do { + if (dst != src) + *dst = *src; + + ctrblocks[0] = cpu_to_be64(ctrblk++); + + blowfish_enc_blk_xor(ctx, (u8 *)dst, (u8 *)ctrblocks); + + src += 1; + dst += 1; + } while ((nbytes -= bsize) >= bsize); + +done: + *(__be64 *)walk->iv = cpu_to_be64(ctrblk); + return nbytes; +} + +static int ctr_crypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct bf_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes) >= BF_BLOCK_SIZE) { + nbytes = __ctr_crypt(ctx, &walk); + err = skcipher_walk_done(&walk, nbytes); + } + + if (nbytes) { + ctr_crypt_final(ctx, &walk); + err = skcipher_walk_done(&walk, 0); + } + + return err; +} + +static struct crypto_alg bf_cipher_alg = { + .cra_name = "blowfish", + .cra_driver_name = "blowfish-asm", + .cra_priority = 200, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = BF_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct bf_ctx), + .cra_alignmask = 0, + .cra_module = THIS_MODULE, + .cra_u = { + .cipher = { + .cia_min_keysize = BF_MIN_KEY_SIZE, + .cia_max_keysize = BF_MAX_KEY_SIZE, + .cia_setkey = blowfish_setkey, + .cia_encrypt = blowfish_encrypt, + .cia_decrypt = blowfish_decrypt, + } + } +}; + +static struct skcipher_alg bf_skcipher_algs[] = { + { + .base.cra_name = "ecb(blowfish)", + .base.cra_driver_name = "ecb-blowfish-asm", + .base.cra_priority = 300, + .base.cra_blocksize = BF_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct bf_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = BF_MIN_KEY_SIZE, + .max_keysize = BF_MAX_KEY_SIZE, + .setkey = blowfish_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "cbc(blowfish)", + .base.cra_driver_name = "cbc-blowfish-asm", + .base.cra_priority = 300, + .base.cra_blocksize = BF_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct bf_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = BF_MIN_KEY_SIZE, + .max_keysize = BF_MAX_KEY_SIZE, + .ivsize = BF_BLOCK_SIZE, + .setkey = blowfish_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "ctr(blowfish)", + .base.cra_driver_name = "ctr-blowfish-asm", + .base.cra_priority = 300, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct bf_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = BF_MIN_KEY_SIZE, + .max_keysize = BF_MAX_KEY_SIZE, + .ivsize = BF_BLOCK_SIZE, + .chunksize = BF_BLOCK_SIZE, + .setkey = blowfish_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, +}; + +static bool is_blacklisted_cpu(void) +{ + if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) + return false; + + if (boot_cpu_data.x86 == 0x0f) { + /* + * On Pentium 4, blowfish-x86_64 is slower than generic C + * implementation because use of 64bit rotates (which are really + * slow on P4). Therefore blacklist P4s. + */ + return true; + } + + return false; +} + +static int force; +module_param(force, int, 0); +MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist"); + +static int __init init(void) +{ + int err; + + if (!force && is_blacklisted_cpu()) { + printk(KERN_INFO + "blowfish-x86_64: performance on this CPU " + "would be suboptimal: disabling " + "blowfish-x86_64.\n"); + return -ENODEV; + } + + err = crypto_register_alg(&bf_cipher_alg); + if (err) + return err; + + err = crypto_register_skciphers(bf_skcipher_algs, + ARRAY_SIZE(bf_skcipher_algs)); + if (err) + crypto_unregister_alg(&bf_cipher_alg); + + return err; +} + +static void __exit fini(void) +{ + crypto_unregister_alg(&bf_cipher_alg); + crypto_unregister_skciphers(bf_skcipher_algs, + ARRAY_SIZE(bf_skcipher_algs)); +} + +module_init(init); +module_exit(fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Blowfish Cipher Algorithm, asm optimized"); +MODULE_ALIAS_CRYPTO("blowfish"); +MODULE_ALIAS_CRYPTO("blowfish-asm"); diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S new file mode 100644 index 000000000..a14af6eb0 --- /dev/null +++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S @@ -0,0 +1,1289 @@ +/* + * x86_64/AVX/AES-NI assembler implementation of Camellia + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +/* + * Version licensed under 2-clause BSD License is available at: + * http://koti.mbnet.fi/axh/crypto/camellia-BSD-1.2.0-aesni1.tar.xz + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include <asm/nospec-branch.h> + +#define CAMELLIA_TABLE_BYTE_LEN 272 + +/* struct camellia_ctx: */ +#define key_table 0 +#define key_length CAMELLIA_TABLE_BYTE_LEN + +/* register macros */ +#define CTX %rdi + +/********************************************************************** + 16-way camellia + **********************************************************************/ +#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \ + vpand x, mask4bit, tmp0; \ + vpandn x, mask4bit, x; \ + vpsrld $4, x, x; \ + \ + vpshufb tmp0, lo_t, tmp0; \ + vpshufb x, hi_t, x; \ + vpxor tmp0, x, x; + +/* + * IN: + * x0..x7: byte-sliced AB state + * mem_cd: register pointer storing CD state + * key: index for key material + * OUT: + * x0..x7: new byte-sliced CD state + */ +#define roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2, t3, t4, t5, t6, \ + t7, mem_cd, key) \ + /* \ + * S-function with AES subbytes \ + */ \ + vmovdqa .Linv_shift_row, t4; \ + vbroadcastss .L0f0f0f0f, t7; \ + vmovdqa .Lpre_tf_lo_s1, t0; \ + vmovdqa .Lpre_tf_hi_s1, t1; \ + \ + /* AES inverse shift rows */ \ + vpshufb t4, x0, x0; \ + vpshufb t4, x7, x7; \ + vpshufb t4, x1, x1; \ + vpshufb t4, x4, x4; \ + vpshufb t4, x2, x2; \ + vpshufb t4, x5, x5; \ + vpshufb t4, x3, x3; \ + vpshufb t4, x6, x6; \ + \ + /* prefilter sboxes 1, 2 and 3 */ \ + vmovdqa .Lpre_tf_lo_s4, t2; \ + vmovdqa .Lpre_tf_hi_s4, t3; \ + filter_8bit(x0, t0, t1, t7, t6); \ + filter_8bit(x7, t0, t1, t7, t6); \ + filter_8bit(x1, t0, t1, t7, t6); \ + filter_8bit(x4, t0, t1, t7, t6); \ + filter_8bit(x2, t0, t1, t7, t6); \ + filter_8bit(x5, t0, t1, t7, t6); \ + \ + /* prefilter sbox 4 */ \ + vpxor t4, t4, t4; \ + filter_8bit(x3, t2, t3, t7, t6); \ + filter_8bit(x6, t2, t3, t7, t6); \ + \ + /* AES subbytes + AES shift rows */ \ + vmovdqa .Lpost_tf_lo_s1, t0; \ + vmovdqa .Lpost_tf_hi_s1, t1; \ + vaesenclast t4, x0, x0; \ + vaesenclast t4, x7, x7; \ + vaesenclast t4, x1, x1; \ + vaesenclast t4, x4, x4; \ + vaesenclast t4, x2, x2; \ + vaesenclast t4, x5, x5; \ + vaesenclast t4, x3, x3; \ + vaesenclast t4, x6, x6; \ + \ + /* postfilter sboxes 1 and 4 */ \ + vmovdqa .Lpost_tf_lo_s3, t2; \ + vmovdqa .Lpost_tf_hi_s3, t3; \ + filter_8bit(x0, t0, t1, t7, t6); \ + filter_8bit(x7, t0, t1, t7, t6); \ + filter_8bit(x3, t0, t1, t7, t6); \ + filter_8bit(x6, t0, t1, t7, t6); \ + \ + /* postfilter sbox 3 */ \ + vmovdqa .Lpost_tf_lo_s2, t4; \ + vmovdqa .Lpost_tf_hi_s2, t5; \ + filter_8bit(x2, t2, t3, t7, t6); \ + filter_8bit(x5, t2, t3, t7, t6); \ + \ + vpxor t6, t6, t6; \ + vmovq key, t0; \ + \ + /* postfilter sbox 2 */ \ + filter_8bit(x1, t4, t5, t7, t2); \ + filter_8bit(x4, t4, t5, t7, t2); \ + \ + vpsrldq $5, t0, t5; \ + vpsrldq $1, t0, t1; \ + vpsrldq $2, t0, t2; \ + vpsrldq $3, t0, t3; \ + vpsrldq $4, t0, t4; \ + vpshufb t6, t0, t0; \ + vpshufb t6, t1, t1; \ + vpshufb t6, t2, t2; \ + vpshufb t6, t3, t3; \ + vpshufb t6, t4, t4; \ + vpsrldq $2, t5, t7; \ + vpshufb t6, t7, t7; \ + \ + /* \ + * P-function \ + */ \ + vpxor x5, x0, x0; \ + vpxor x6, x1, x1; \ + vpxor x7, x2, x2; \ + vpxor x4, x3, x3; \ + \ + vpxor x2, x4, x4; \ + vpxor x3, x5, x5; \ + vpxor x0, x6, x6; \ + vpxor x1, x7, x7; \ + \ + vpxor x7, x0, x0; \ + vpxor x4, x1, x1; \ + vpxor x5, x2, x2; \ + vpxor x6, x3, x3; \ + \ + vpxor x3, x4, x4; \ + vpxor x0, x5, x5; \ + vpxor x1, x6, x6; \ + vpxor x2, x7, x7; /* note: high and low parts swapped */ \ + \ + /* \ + * Add key material and result to CD (x becomes new CD) \ + */ \ + \ + vpxor t3, x4, x4; \ + vpxor 0 * 16(mem_cd), x4, x4; \ + \ + vpxor t2, x5, x5; \ + vpxor 1 * 16(mem_cd), x5, x5; \ + \ + vpsrldq $1, t5, t3; \ + vpshufb t6, t5, t5; \ + vpshufb t6, t3, t6; \ + \ + vpxor t1, x6, x6; \ + vpxor 2 * 16(mem_cd), x6, x6; \ + \ + vpxor t0, x7, x7; \ + vpxor 3 * 16(mem_cd), x7, x7; \ + \ + vpxor t7, x0, x0; \ + vpxor 4 * 16(mem_cd), x0, x0; \ + \ + vpxor t6, x1, x1; \ + vpxor 5 * 16(mem_cd), x1, x1; \ + \ + vpxor t5, x2, x2; \ + vpxor 6 * 16(mem_cd), x2, x2; \ + \ + vpxor t4, x3, x3; \ + vpxor 7 * 16(mem_cd), x3, x3; + +/* + * Size optimization... with inlined roundsm16, binary would be over 5 times + * larger and would only be 0.5% faster (on sandy-bridge). + */ +.align 8 +roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd: + roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15, + %rcx, (%r9)); + ret; +ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd) + +.align 8 +roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab: + roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3, + %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11, + %rax, (%r9)); + ret; +ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) + +/* + * IN/OUT: + * x0..x7: byte-sliced AB state preloaded + * mem_ab: byte-sliced AB state in memory + * mem_cb: byte-sliced CD state in memory + */ +#define two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, i, dir, store_ab) \ + leaq (key_table + (i) * 8)(CTX), %r9; \ + call roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd; \ + \ + vmovdqu x4, 0 * 16(mem_cd); \ + vmovdqu x5, 1 * 16(mem_cd); \ + vmovdqu x6, 2 * 16(mem_cd); \ + vmovdqu x7, 3 * 16(mem_cd); \ + vmovdqu x0, 4 * 16(mem_cd); \ + vmovdqu x1, 5 * 16(mem_cd); \ + vmovdqu x2, 6 * 16(mem_cd); \ + vmovdqu x3, 7 * 16(mem_cd); \ + \ + leaq (key_table + ((i) + (dir)) * 8)(CTX), %r9; \ + call roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab; \ + \ + store_ab(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab); + +#define dummy_store(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) /* do nothing */ + +#define store_ab_state(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) \ + /* Store new AB state */ \ + vmovdqu x0, 0 * 16(mem_ab); \ + vmovdqu x1, 1 * 16(mem_ab); \ + vmovdqu x2, 2 * 16(mem_ab); \ + vmovdqu x3, 3 * 16(mem_ab); \ + vmovdqu x4, 4 * 16(mem_ab); \ + vmovdqu x5, 5 * 16(mem_ab); \ + vmovdqu x6, 6 * 16(mem_ab); \ + vmovdqu x7, 7 * 16(mem_ab); + +#define enc_rounds16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, i) \ + two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 2, 1, store_ab_state); \ + two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 4, 1, store_ab_state); \ + two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 6, 1, dummy_store); + +#define dec_rounds16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, i) \ + two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 7, -1, store_ab_state); \ + two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 5, -1, store_ab_state); \ + two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 3, -1, dummy_store); + +/* + * IN: + * v0..3: byte-sliced 32-bit integers + * OUT: + * v0..3: (IN <<< 1) + */ +#define rol32_1_16(v0, v1, v2, v3, t0, t1, t2, zero) \ + vpcmpgtb v0, zero, t0; \ + vpaddb v0, v0, v0; \ + vpabsb t0, t0; \ + \ + vpcmpgtb v1, zero, t1; \ + vpaddb v1, v1, v1; \ + vpabsb t1, t1; \ + \ + vpcmpgtb v2, zero, t2; \ + vpaddb v2, v2, v2; \ + vpabsb t2, t2; \ + \ + vpor t0, v1, v1; \ + \ + vpcmpgtb v3, zero, t0; \ + vpaddb v3, v3, v3; \ + vpabsb t0, t0; \ + \ + vpor t1, v2, v2; \ + vpor t2, v3, v3; \ + vpor t0, v0, v0; + +/* + * IN: + * r: byte-sliced AB state in memory + * l: byte-sliced CD state in memory + * OUT: + * x0..x7: new byte-sliced CD state + */ +#define fls16(l, l0, l1, l2, l3, l4, l5, l6, l7, r, t0, t1, t2, t3, tt0, \ + tt1, tt2, tt3, kll, klr, krl, krr) \ + /* \ + * t0 = kll; \ + * t0 &= ll; \ + * lr ^= rol32(t0, 1); \ + */ \ + vpxor tt0, tt0, tt0; \ + vmovd kll, t0; \ + vpshufb tt0, t0, t3; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t2; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t1; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t0; \ + \ + vpand l0, t0, t0; \ + vpand l1, t1, t1; \ + vpand l2, t2, t2; \ + vpand l3, t3, t3; \ + \ + rol32_1_16(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \ + \ + vpxor l4, t0, l4; \ + vmovdqu l4, 4 * 16(l); \ + vpxor l5, t1, l5; \ + vmovdqu l5, 5 * 16(l); \ + vpxor l6, t2, l6; \ + vmovdqu l6, 6 * 16(l); \ + vpxor l7, t3, l7; \ + vmovdqu l7, 7 * 16(l); \ + \ + /* \ + * t2 = krr; \ + * t2 |= rr; \ + * rl ^= t2; \ + */ \ + \ + vmovd krr, t0; \ + vpshufb tt0, t0, t3; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t2; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t1; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t0; \ + \ + vpor 4 * 16(r), t0, t0; \ + vpor 5 * 16(r), t1, t1; \ + vpor 6 * 16(r), t2, t2; \ + vpor 7 * 16(r), t3, t3; \ + \ + vpxor 0 * 16(r), t0, t0; \ + vpxor 1 * 16(r), t1, t1; \ + vpxor 2 * 16(r), t2, t2; \ + vpxor 3 * 16(r), t3, t3; \ + vmovdqu t0, 0 * 16(r); \ + vmovdqu t1, 1 * 16(r); \ + vmovdqu t2, 2 * 16(r); \ + vmovdqu t3, 3 * 16(r); \ + \ + /* \ + * t2 = krl; \ + * t2 &= rl; \ + * rr ^= rol32(t2, 1); \ + */ \ + vmovd krl, t0; \ + vpshufb tt0, t0, t3; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t2; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t1; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t0; \ + \ + vpand 0 * 16(r), t0, t0; \ + vpand 1 * 16(r), t1, t1; \ + vpand 2 * 16(r), t2, t2; \ + vpand 3 * 16(r), t3, t3; \ + \ + rol32_1_16(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \ + \ + vpxor 4 * 16(r), t0, t0; \ + vpxor 5 * 16(r), t1, t1; \ + vpxor 6 * 16(r), t2, t2; \ + vpxor 7 * 16(r), t3, t3; \ + vmovdqu t0, 4 * 16(r); \ + vmovdqu t1, 5 * 16(r); \ + vmovdqu t2, 6 * 16(r); \ + vmovdqu t3, 7 * 16(r); \ + \ + /* \ + * t0 = klr; \ + * t0 |= lr; \ + * ll ^= t0; \ + */ \ + \ + vmovd klr, t0; \ + vpshufb tt0, t0, t3; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t2; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t1; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t0; \ + \ + vpor l4, t0, t0; \ + vpor l5, t1, t1; \ + vpor l6, t2, t2; \ + vpor l7, t3, t3; \ + \ + vpxor l0, t0, l0; \ + vmovdqu l0, 0 * 16(l); \ + vpxor l1, t1, l1; \ + vmovdqu l1, 1 * 16(l); \ + vpxor l2, t2, l2; \ + vmovdqu l2, 2 * 16(l); \ + vpxor l3, t3, l3; \ + vmovdqu l3, 3 * 16(l); + +#define transpose_4x4(x0, x1, x2, x3, t1, t2) \ + vpunpckhdq x1, x0, t2; \ + vpunpckldq x1, x0, x0; \ + \ + vpunpckldq x3, x2, t1; \ + vpunpckhdq x3, x2, x2; \ + \ + vpunpckhqdq t1, x0, x1; \ + vpunpcklqdq t1, x0, x0; \ + \ + vpunpckhqdq x2, t2, x3; \ + vpunpcklqdq x2, t2, x2; + +#define byteslice_16x16b(a0, b0, c0, d0, a1, b1, c1, d1, a2, b2, c2, d2, a3, \ + b3, c3, d3, st0, st1) \ + vmovdqu d2, st0; \ + vmovdqu d3, st1; \ + transpose_4x4(a0, a1, a2, a3, d2, d3); \ + transpose_4x4(b0, b1, b2, b3, d2, d3); \ + vmovdqu st0, d2; \ + vmovdqu st1, d3; \ + \ + vmovdqu a0, st0; \ + vmovdqu a1, st1; \ + transpose_4x4(c0, c1, c2, c3, a0, a1); \ + transpose_4x4(d0, d1, d2, d3, a0, a1); \ + \ + vmovdqu .Lshufb_16x16b, a0; \ + vmovdqu st1, a1; \ + vpshufb a0, a2, a2; \ + vpshufb a0, a3, a3; \ + vpshufb a0, b0, b0; \ + vpshufb a0, b1, b1; \ + vpshufb a0, b2, b2; \ + vpshufb a0, b3, b3; \ + vpshufb a0, a1, a1; \ + vpshufb a0, c0, c0; \ + vpshufb a0, c1, c1; \ + vpshufb a0, c2, c2; \ + vpshufb a0, c3, c3; \ + vpshufb a0, d0, d0; \ + vpshufb a0, d1, d1; \ + vpshufb a0, d2, d2; \ + vpshufb a0, d3, d3; \ + vmovdqu d3, st1; \ + vmovdqu st0, d3; \ + vpshufb a0, d3, a0; \ + vmovdqu d2, st0; \ + \ + transpose_4x4(a0, b0, c0, d0, d2, d3); \ + transpose_4x4(a1, b1, c1, d1, d2, d3); \ + vmovdqu st0, d2; \ + vmovdqu st1, d3; \ + \ + vmovdqu b0, st0; \ + vmovdqu b1, st1; \ + transpose_4x4(a2, b2, c2, d2, b0, b1); \ + transpose_4x4(a3, b3, c3, d3, b0, b1); \ + vmovdqu st0, b0; \ + vmovdqu st1, b1; \ + /* does not adjust output bytes inside vectors */ + +/* load blocks to registers and apply pre-whitening */ +#define inpack16_pre(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, rio, key) \ + vmovq key, x0; \ + vpshufb .Lpack_bswap, x0, x0; \ + \ + vpxor 0 * 16(rio), x0, y7; \ + vpxor 1 * 16(rio), x0, y6; \ + vpxor 2 * 16(rio), x0, y5; \ + vpxor 3 * 16(rio), x0, y4; \ + vpxor 4 * 16(rio), x0, y3; \ + vpxor 5 * 16(rio), x0, y2; \ + vpxor 6 * 16(rio), x0, y1; \ + vpxor 7 * 16(rio), x0, y0; \ + vpxor 8 * 16(rio), x0, x7; \ + vpxor 9 * 16(rio), x0, x6; \ + vpxor 10 * 16(rio), x0, x5; \ + vpxor 11 * 16(rio), x0, x4; \ + vpxor 12 * 16(rio), x0, x3; \ + vpxor 13 * 16(rio), x0, x2; \ + vpxor 14 * 16(rio), x0, x1; \ + vpxor 15 * 16(rio), x0, x0; + +/* byteslice pre-whitened blocks and store to temporary memory */ +#define inpack16_post(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd) \ + byteslice_16x16b(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \ + y5, y6, y7, (mem_ab), (mem_cd)); \ + \ + vmovdqu x0, 0 * 16(mem_ab); \ + vmovdqu x1, 1 * 16(mem_ab); \ + vmovdqu x2, 2 * 16(mem_ab); \ + vmovdqu x3, 3 * 16(mem_ab); \ + vmovdqu x4, 4 * 16(mem_ab); \ + vmovdqu x5, 5 * 16(mem_ab); \ + vmovdqu x6, 6 * 16(mem_ab); \ + vmovdqu x7, 7 * 16(mem_ab); \ + vmovdqu y0, 0 * 16(mem_cd); \ + vmovdqu y1, 1 * 16(mem_cd); \ + vmovdqu y2, 2 * 16(mem_cd); \ + vmovdqu y3, 3 * 16(mem_cd); \ + vmovdqu y4, 4 * 16(mem_cd); \ + vmovdqu y5, 5 * 16(mem_cd); \ + vmovdqu y6, 6 * 16(mem_cd); \ + vmovdqu y7, 7 * 16(mem_cd); + +/* de-byteslice, apply post-whitening and store blocks */ +#define outunpack16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \ + y5, y6, y7, key, stack_tmp0, stack_tmp1) \ + byteslice_16x16b(y0, y4, x0, x4, y1, y5, x1, x5, y2, y6, x2, x6, y3, \ + y7, x3, x7, stack_tmp0, stack_tmp1); \ + \ + vmovdqu x0, stack_tmp0; \ + \ + vmovq key, x0; \ + vpshufb .Lpack_bswap, x0, x0; \ + \ + vpxor x0, y7, y7; \ + vpxor x0, y6, y6; \ + vpxor x0, y5, y5; \ + vpxor x0, y4, y4; \ + vpxor x0, y3, y3; \ + vpxor x0, y2, y2; \ + vpxor x0, y1, y1; \ + vpxor x0, y0, y0; \ + vpxor x0, x7, x7; \ + vpxor x0, x6, x6; \ + vpxor x0, x5, x5; \ + vpxor x0, x4, x4; \ + vpxor x0, x3, x3; \ + vpxor x0, x2, x2; \ + vpxor x0, x1, x1; \ + vpxor stack_tmp0, x0, x0; + +#define write_output(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, rio) \ + vmovdqu x0, 0 * 16(rio); \ + vmovdqu x1, 1 * 16(rio); \ + vmovdqu x2, 2 * 16(rio); \ + vmovdqu x3, 3 * 16(rio); \ + vmovdqu x4, 4 * 16(rio); \ + vmovdqu x5, 5 * 16(rio); \ + vmovdqu x6, 6 * 16(rio); \ + vmovdqu x7, 7 * 16(rio); \ + vmovdqu y0, 8 * 16(rio); \ + vmovdqu y1, 9 * 16(rio); \ + vmovdqu y2, 10 * 16(rio); \ + vmovdqu y3, 11 * 16(rio); \ + vmovdqu y4, 12 * 16(rio); \ + vmovdqu y5, 13 * 16(rio); \ + vmovdqu y6, 14 * 16(rio); \ + vmovdqu y7, 15 * 16(rio); + + +/* NB: section is mergeable, all elements must be aligned 16-byte blocks */ +.section .rodata.cst16, "aM", @progbits, 16 +.align 16 + +#define SHUFB_BYTES(idx) \ + 0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx) + +.Lshufb_16x16b: + .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3); + +.Lpack_bswap: + .long 0x00010203 + .long 0x04050607 + .long 0x80808080 + .long 0x80808080 + +/* For CTR-mode IV byteswap */ +.Lbswap128_mask: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 + +/* For XTS mode IV generation */ +.Lxts_gf128mul_and_shl1_mask: + .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 + +/* + * pre-SubByte transform + * + * pre-lookup for sbox1, sbox2, sbox3: + * swap_bitendianness( + * isom_map_camellia_to_aes( + * camellia_f( + * swap_bitendianess(in) + * ) + * ) + * ) + * + * (note: '⊕ 0xc5' inside camellia_f()) + */ +.Lpre_tf_lo_s1: + .byte 0x45, 0xe8, 0x40, 0xed, 0x2e, 0x83, 0x2b, 0x86 + .byte 0x4b, 0xe6, 0x4e, 0xe3, 0x20, 0x8d, 0x25, 0x88 +.Lpre_tf_hi_s1: + .byte 0x00, 0x51, 0xf1, 0xa0, 0x8a, 0xdb, 0x7b, 0x2a + .byte 0x09, 0x58, 0xf8, 0xa9, 0x83, 0xd2, 0x72, 0x23 + +/* + * pre-SubByte transform + * + * pre-lookup for sbox4: + * swap_bitendianness( + * isom_map_camellia_to_aes( + * camellia_f( + * swap_bitendianess(in <<< 1) + * ) + * ) + * ) + * + * (note: '⊕ 0xc5' inside camellia_f()) + */ +.Lpre_tf_lo_s4: + .byte 0x45, 0x40, 0x2e, 0x2b, 0x4b, 0x4e, 0x20, 0x25 + .byte 0x14, 0x11, 0x7f, 0x7a, 0x1a, 0x1f, 0x71, 0x74 +.Lpre_tf_hi_s4: + .byte 0x00, 0xf1, 0x8a, 0x7b, 0x09, 0xf8, 0x83, 0x72 + .byte 0xad, 0x5c, 0x27, 0xd6, 0xa4, 0x55, 0x2e, 0xdf + +/* + * post-SubByte transform + * + * post-lookup for sbox1, sbox4: + * swap_bitendianness( + * camellia_h( + * isom_map_aes_to_camellia( + * swap_bitendianness( + * aes_inverse_affine_transform(in) + * ) + * ) + * ) + * ) + * + * (note: '⊕ 0x6e' inside camellia_h()) + */ +.Lpost_tf_lo_s1: + .byte 0x3c, 0xcc, 0xcf, 0x3f, 0x32, 0xc2, 0xc1, 0x31 + .byte 0xdc, 0x2c, 0x2f, 0xdf, 0xd2, 0x22, 0x21, 0xd1 +.Lpost_tf_hi_s1: + .byte 0x00, 0xf9, 0x86, 0x7f, 0xd7, 0x2e, 0x51, 0xa8 + .byte 0xa4, 0x5d, 0x22, 0xdb, 0x73, 0x8a, 0xf5, 0x0c + +/* + * post-SubByte transform + * + * post-lookup for sbox2: + * swap_bitendianness( + * camellia_h( + * isom_map_aes_to_camellia( + * swap_bitendianness( + * aes_inverse_affine_transform(in) + * ) + * ) + * ) + * ) <<< 1 + * + * (note: '⊕ 0x6e' inside camellia_h()) + */ +.Lpost_tf_lo_s2: + .byte 0x78, 0x99, 0x9f, 0x7e, 0x64, 0x85, 0x83, 0x62 + .byte 0xb9, 0x58, 0x5e, 0xbf, 0xa5, 0x44, 0x42, 0xa3 +.Lpost_tf_hi_s2: + .byte 0x00, 0xf3, 0x0d, 0xfe, 0xaf, 0x5c, 0xa2, 0x51 + .byte 0x49, 0xba, 0x44, 0xb7, 0xe6, 0x15, 0xeb, 0x18 + +/* + * post-SubByte transform + * + * post-lookup for sbox3: + * swap_bitendianness( + * camellia_h( + * isom_map_aes_to_camellia( + * swap_bitendianness( + * aes_inverse_affine_transform(in) + * ) + * ) + * ) + * ) >>> 1 + * + * (note: '⊕ 0x6e' inside camellia_h()) + */ +.Lpost_tf_lo_s3: + .byte 0x1e, 0x66, 0xe7, 0x9f, 0x19, 0x61, 0xe0, 0x98 + .byte 0x6e, 0x16, 0x97, 0xef, 0x69, 0x11, 0x90, 0xe8 +.Lpost_tf_hi_s3: + .byte 0x00, 0xfc, 0x43, 0xbf, 0xeb, 0x17, 0xa8, 0x54 + .byte 0x52, 0xae, 0x11, 0xed, 0xb9, 0x45, 0xfa, 0x06 + +/* For isolating SubBytes from AESENCLAST, inverse shift row */ +.Linv_shift_row: + .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b + .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03 + +/* 4-bit mask */ +.section .rodata.cst4.L0f0f0f0f, "aM", @progbits, 4 +.align 4 +.L0f0f0f0f: + .long 0x0f0f0f0f + +.text + +.align 8 +__camellia_enc_blk16: + /* input: + * %rdi: ctx, CTX + * %rax: temporary storage, 256 bytes + * %xmm0..%xmm15: 16 plaintext blocks + * output: + * %xmm0..%xmm15: 16 encrypted blocks, order swapped: + * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8 + */ + FRAME_BEGIN + + leaq 8 * 16(%rax), %rcx; + + inpack16_post(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx); + + enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx, 0); + + fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, + ((key_table + (8) * 8) + 0)(CTX), + ((key_table + (8) * 8) + 4)(CTX), + ((key_table + (8) * 8) + 8)(CTX), + ((key_table + (8) * 8) + 12)(CTX)); + + enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx, 8); + + fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, + ((key_table + (16) * 8) + 0)(CTX), + ((key_table + (16) * 8) + 4)(CTX), + ((key_table + (16) * 8) + 8)(CTX), + ((key_table + (16) * 8) + 12)(CTX)); + + enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx, 16); + + movl $24, %r8d; + cmpl $16, key_length(CTX); + jne .Lenc_max32; + +.Lenc_done: + /* load CD for output */ + vmovdqu 0 * 16(%rcx), %xmm8; + vmovdqu 1 * 16(%rcx), %xmm9; + vmovdqu 2 * 16(%rcx), %xmm10; + vmovdqu 3 * 16(%rcx), %xmm11; + vmovdqu 4 * 16(%rcx), %xmm12; + vmovdqu 5 * 16(%rcx), %xmm13; + vmovdqu 6 * 16(%rcx), %xmm14; + vmovdqu 7 * 16(%rcx), %xmm15; + + outunpack16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 16(%rax)); + + FRAME_END + ret; + +.align 8 +.Lenc_max32: + movl $32, %r8d; + + fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, + ((key_table + (24) * 8) + 0)(CTX), + ((key_table + (24) * 8) + 4)(CTX), + ((key_table + (24) * 8) + 8)(CTX), + ((key_table + (24) * 8) + 12)(CTX)); + + enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx, 24); + + jmp .Lenc_done; +ENDPROC(__camellia_enc_blk16) + +.align 8 +__camellia_dec_blk16: + /* input: + * %rdi: ctx, CTX + * %rax: temporary storage, 256 bytes + * %r8d: 24 for 16 byte key, 32 for larger + * %xmm0..%xmm15: 16 encrypted blocks + * output: + * %xmm0..%xmm15: 16 plaintext blocks, order swapped: + * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8 + */ + FRAME_BEGIN + + leaq 8 * 16(%rax), %rcx; + + inpack16_post(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx); + + cmpl $32, %r8d; + je .Ldec_max32; + +.Ldec_max24: + dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx, 16); + + fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, + ((key_table + (16) * 8) + 8)(CTX), + ((key_table + (16) * 8) + 12)(CTX), + ((key_table + (16) * 8) + 0)(CTX), + ((key_table + (16) * 8) + 4)(CTX)); + + dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx, 8); + + fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, + ((key_table + (8) * 8) + 8)(CTX), + ((key_table + (8) * 8) + 12)(CTX), + ((key_table + (8) * 8) + 0)(CTX), + ((key_table + (8) * 8) + 4)(CTX)); + + dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx, 0); + + /* load CD for output */ + vmovdqu 0 * 16(%rcx), %xmm8; + vmovdqu 1 * 16(%rcx), %xmm9; + vmovdqu 2 * 16(%rcx), %xmm10; + vmovdqu 3 * 16(%rcx), %xmm11; + vmovdqu 4 * 16(%rcx), %xmm12; + vmovdqu 5 * 16(%rcx), %xmm13; + vmovdqu 6 * 16(%rcx), %xmm14; + vmovdqu 7 * 16(%rcx), %xmm15; + + outunpack16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, (key_table)(CTX), (%rax), 1 * 16(%rax)); + + FRAME_END + ret; + +.align 8 +.Ldec_max32: + dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rax, %rcx, 24); + + fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, + ((key_table + (24) * 8) + 8)(CTX), + ((key_table + (24) * 8) + 12)(CTX), + ((key_table + (24) * 8) + 0)(CTX), + ((key_table + (24) * 8) + 4)(CTX)); + + jmp .Ldec_max24; +ENDPROC(__camellia_dec_blk16) + +ENTRY(camellia_ecb_enc_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + */ + FRAME_BEGIN + + inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rdx, (key_table)(CTX)); + + /* now dst can be used as temporary buffer (even in src == dst case) */ + movq %rsi, %rax; + + call __camellia_enc_blk16; + + write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0, + %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9, + %xmm8, %rsi); + + FRAME_END + ret; +ENDPROC(camellia_ecb_enc_16way) + +ENTRY(camellia_ecb_dec_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + */ + FRAME_BEGIN + + cmpl $16, key_length(CTX); + movl $32, %r8d; + movl $24, %eax; + cmovel %eax, %r8d; /* max */ + + inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rdx, (key_table)(CTX, %r8, 8)); + + /* now dst can be used as temporary buffer (even in src == dst case) */ + movq %rsi, %rax; + + call __camellia_dec_blk16; + + write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0, + %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9, + %xmm8, %rsi); + + FRAME_END + ret; +ENDPROC(camellia_ecb_dec_16way) + +ENTRY(camellia_cbc_dec_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + */ + FRAME_BEGIN + + cmpl $16, key_length(CTX); + movl $32, %r8d; + movl $24, %eax; + cmovel %eax, %r8d; /* max */ + + inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, + %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, + %xmm15, %rdx, (key_table)(CTX, %r8, 8)); + + /* + * dst might still be in-use (in case dst == src), so use stack for + * temporary storage. + */ + subq $(16 * 16), %rsp; + movq %rsp, %rax; + + call __camellia_dec_blk16; + + addq $(16 * 16), %rsp; + + vpxor (0 * 16)(%rdx), %xmm6, %xmm6; + vpxor (1 * 16)(%rdx), %xmm5, %xmm5; + vpxor (2 * 16)(%rdx), %xmm4, %xmm4; + vpxor (3 * 16)(%rdx), %xmm3, %xmm3; + vpxor (4 * 16)(%rdx), %xmm2, %xmm2; + vpxor (5 * 16)(%rdx), %xmm1, %xmm1; + vpxor (6 * 16)(%rdx), %xmm0, %xmm0; + vpxor (7 * 16)(%rdx), %xmm15, %xmm15; + vpxor (8 * 16)(%rdx), %xmm14, %xmm14; + vpxor (9 * 16)(%rdx), %xmm13, %xmm13; + vpxor (10 * 16)(%rdx), %xmm12, %xmm12; + vpxor (11 * 16)(%rdx), %xmm11, %xmm11; + vpxor (12 * 16)(%rdx), %xmm10, %xmm10; + vpxor (13 * 16)(%rdx), %xmm9, %xmm9; + vpxor (14 * 16)(%rdx), %xmm8, %xmm8; + write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0, + %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9, + %xmm8, %rsi); + + FRAME_END + ret; +ENDPROC(camellia_cbc_dec_16way) + +#define inc_le128(x, minus_one, tmp) \ + vpcmpeqq minus_one, x, tmp; \ + vpsubq minus_one, x, x; \ + vpslldq $8, tmp, tmp; \ + vpsubq tmp, x, x; + +ENTRY(camellia_ctr_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (little endian, 128bit) + */ + FRAME_BEGIN + + subq $(16 * 16), %rsp; + movq %rsp, %rax; + + vmovdqa .Lbswap128_mask, %xmm14; + + /* load IV and byteswap */ + vmovdqu (%rcx), %xmm0; + vpshufb %xmm14, %xmm0, %xmm15; + vmovdqu %xmm15, 15 * 16(%rax); + + vpcmpeqd %xmm15, %xmm15, %xmm15; + vpsrldq $8, %xmm15, %xmm15; /* low: -1, high: 0 */ + + /* construct IVs */ + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm13; + vmovdqu %xmm13, 14 * 16(%rax); + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm13; + vmovdqu %xmm13, 13 * 16(%rax); + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm12; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm11; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm10; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm9; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm8; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm7; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm6; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm5; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm4; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm3; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm2; + inc_le128(%xmm0, %xmm15, %xmm13); + vpshufb %xmm14, %xmm0, %xmm1; + inc_le128(%xmm0, %xmm15, %xmm13); + vmovdqa %xmm0, %xmm13; + vpshufb %xmm14, %xmm0, %xmm0; + inc_le128(%xmm13, %xmm15, %xmm14); + vmovdqu %xmm13, (%rcx); + + /* inpack16_pre: */ + vmovq (key_table)(CTX), %xmm15; + vpshufb .Lpack_bswap, %xmm15, %xmm15; + vpxor %xmm0, %xmm15, %xmm0; + vpxor %xmm1, %xmm15, %xmm1; + vpxor %xmm2, %xmm15, %xmm2; + vpxor %xmm3, %xmm15, %xmm3; + vpxor %xmm4, %xmm15, %xmm4; + vpxor %xmm5, %xmm15, %xmm5; + vpxor %xmm6, %xmm15, %xmm6; + vpxor %xmm7, %xmm15, %xmm7; + vpxor %xmm8, %xmm15, %xmm8; + vpxor %xmm9, %xmm15, %xmm9; + vpxor %xmm10, %xmm15, %xmm10; + vpxor %xmm11, %xmm15, %xmm11; + vpxor %xmm12, %xmm15, %xmm12; + vpxor 13 * 16(%rax), %xmm15, %xmm13; + vpxor 14 * 16(%rax), %xmm15, %xmm14; + vpxor 15 * 16(%rax), %xmm15, %xmm15; + + call __camellia_enc_blk16; + + addq $(16 * 16), %rsp; + + vpxor 0 * 16(%rdx), %xmm7, %xmm7; + vpxor 1 * 16(%rdx), %xmm6, %xmm6; + vpxor 2 * 16(%rdx), %xmm5, %xmm5; + vpxor 3 * 16(%rdx), %xmm4, %xmm4; + vpxor 4 * 16(%rdx), %xmm3, %xmm3; + vpxor 5 * 16(%rdx), %xmm2, %xmm2; + vpxor 6 * 16(%rdx), %xmm1, %xmm1; + vpxor 7 * 16(%rdx), %xmm0, %xmm0; + vpxor 8 * 16(%rdx), %xmm15, %xmm15; + vpxor 9 * 16(%rdx), %xmm14, %xmm14; + vpxor 10 * 16(%rdx), %xmm13, %xmm13; + vpxor 11 * 16(%rdx), %xmm12, %xmm12; + vpxor 12 * 16(%rdx), %xmm11, %xmm11; + vpxor 13 * 16(%rdx), %xmm10, %xmm10; + vpxor 14 * 16(%rdx), %xmm9, %xmm9; + vpxor 15 * 16(%rdx), %xmm8, %xmm8; + write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0, + %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9, + %xmm8, %rsi); + + FRAME_END + ret; +ENDPROC(camellia_ctr_16way) + +#define gf128mul_x_ble(iv, mask, tmp) \ + vpsrad $31, iv, tmp; \ + vpaddq iv, iv, iv; \ + vpshufd $0x13, tmp, tmp; \ + vpand mask, tmp, tmp; \ + vpxor tmp, iv, iv; + +.align 8 +camellia_xts_crypt_16way: + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + * %r8: index for input whitening key + * %r9: pointer to __camellia_enc_blk16 or __camellia_dec_blk16 + */ + FRAME_BEGIN + + subq $(16 * 16), %rsp; + movq %rsp, %rax; + + vmovdqa .Lxts_gf128mul_and_shl1_mask, %xmm14; + + /* load IV */ + vmovdqu (%rcx), %xmm0; + vpxor 0 * 16(%rdx), %xmm0, %xmm15; + vmovdqu %xmm15, 15 * 16(%rax); + vmovdqu %xmm0, 0 * 16(%rsi); + + /* construct IVs */ + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 1 * 16(%rdx), %xmm0, %xmm15; + vmovdqu %xmm15, 14 * 16(%rax); + vmovdqu %xmm0, 1 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 2 * 16(%rdx), %xmm0, %xmm13; + vmovdqu %xmm0, 2 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 3 * 16(%rdx), %xmm0, %xmm12; + vmovdqu %xmm0, 3 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 4 * 16(%rdx), %xmm0, %xmm11; + vmovdqu %xmm0, 4 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 5 * 16(%rdx), %xmm0, %xmm10; + vmovdqu %xmm0, 5 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 6 * 16(%rdx), %xmm0, %xmm9; + vmovdqu %xmm0, 6 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 7 * 16(%rdx), %xmm0, %xmm8; + vmovdqu %xmm0, 7 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 8 * 16(%rdx), %xmm0, %xmm7; + vmovdqu %xmm0, 8 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 9 * 16(%rdx), %xmm0, %xmm6; + vmovdqu %xmm0, 9 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 10 * 16(%rdx), %xmm0, %xmm5; + vmovdqu %xmm0, 10 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 11 * 16(%rdx), %xmm0, %xmm4; + vmovdqu %xmm0, 11 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 12 * 16(%rdx), %xmm0, %xmm3; + vmovdqu %xmm0, 12 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 13 * 16(%rdx), %xmm0, %xmm2; + vmovdqu %xmm0, 13 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 14 * 16(%rdx), %xmm0, %xmm1; + vmovdqu %xmm0, 14 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 15 * 16(%rdx), %xmm0, %xmm15; + vmovdqu %xmm15, 0 * 16(%rax); + vmovdqu %xmm0, 15 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vmovdqu %xmm0, (%rcx); + + /* inpack16_pre: */ + vmovq (key_table)(CTX, %r8, 8), %xmm15; + vpshufb .Lpack_bswap, %xmm15, %xmm15; + vpxor 0 * 16(%rax), %xmm15, %xmm0; + vpxor %xmm1, %xmm15, %xmm1; + vpxor %xmm2, %xmm15, %xmm2; + vpxor %xmm3, %xmm15, %xmm3; + vpxor %xmm4, %xmm15, %xmm4; + vpxor %xmm5, %xmm15, %xmm5; + vpxor %xmm6, %xmm15, %xmm6; + vpxor %xmm7, %xmm15, %xmm7; + vpxor %xmm8, %xmm15, %xmm8; + vpxor %xmm9, %xmm15, %xmm9; + vpxor %xmm10, %xmm15, %xmm10; + vpxor %xmm11, %xmm15, %xmm11; + vpxor %xmm12, %xmm15, %xmm12; + vpxor %xmm13, %xmm15, %xmm13; + vpxor 14 * 16(%rax), %xmm15, %xmm14; + vpxor 15 * 16(%rax), %xmm15, %xmm15; + + CALL_NOSPEC %r9; + + addq $(16 * 16), %rsp; + + vpxor 0 * 16(%rsi), %xmm7, %xmm7; + vpxor 1 * 16(%rsi), %xmm6, %xmm6; + vpxor 2 * 16(%rsi), %xmm5, %xmm5; + vpxor 3 * 16(%rsi), %xmm4, %xmm4; + vpxor 4 * 16(%rsi), %xmm3, %xmm3; + vpxor 5 * 16(%rsi), %xmm2, %xmm2; + vpxor 6 * 16(%rsi), %xmm1, %xmm1; + vpxor 7 * 16(%rsi), %xmm0, %xmm0; + vpxor 8 * 16(%rsi), %xmm15, %xmm15; + vpxor 9 * 16(%rsi), %xmm14, %xmm14; + vpxor 10 * 16(%rsi), %xmm13, %xmm13; + vpxor 11 * 16(%rsi), %xmm12, %xmm12; + vpxor 12 * 16(%rsi), %xmm11, %xmm11; + vpxor 13 * 16(%rsi), %xmm10, %xmm10; + vpxor 14 * 16(%rsi), %xmm9, %xmm9; + vpxor 15 * 16(%rsi), %xmm8, %xmm8; + write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0, + %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9, + %xmm8, %rsi); + + FRAME_END + ret; +ENDPROC(camellia_xts_crypt_16way) + +ENTRY(camellia_xts_enc_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + xorl %r8d, %r8d; /* input whitening key, 0 for enc */ + + leaq __camellia_enc_blk16, %r9; + + jmp camellia_xts_crypt_16way; +ENDPROC(camellia_xts_enc_16way) + +ENTRY(camellia_xts_dec_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + + cmpl $16, key_length(CTX); + movl $32, %r8d; + movl $24, %eax; + cmovel %eax, %r8d; /* input whitening key, last for dec */ + + leaq __camellia_dec_blk16, %r9; + + jmp camellia_xts_crypt_16way; +ENDPROC(camellia_xts_dec_16way) diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S new file mode 100644 index 000000000..b66bbfa62 --- /dev/null +++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S @@ -0,0 +1,1408 @@ +/* + * x86_64/AVX2/AES-NI assembler implementation of Camellia + * + * Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include <asm/nospec-branch.h> + +#define CAMELLIA_TABLE_BYTE_LEN 272 + +/* struct camellia_ctx: */ +#define key_table 0 +#define key_length CAMELLIA_TABLE_BYTE_LEN + +/* register macros */ +#define CTX %rdi +#define RIO %r8 + +/********************************************************************** + helper macros + **********************************************************************/ +#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \ + vpand x, mask4bit, tmp0; \ + vpandn x, mask4bit, x; \ + vpsrld $4, x, x; \ + \ + vpshufb tmp0, lo_t, tmp0; \ + vpshufb x, hi_t, x; \ + vpxor tmp0, x, x; + +#define ymm0_x xmm0 +#define ymm1_x xmm1 +#define ymm2_x xmm2 +#define ymm3_x xmm3 +#define ymm4_x xmm4 +#define ymm5_x xmm5 +#define ymm6_x xmm6 +#define ymm7_x xmm7 +#define ymm8_x xmm8 +#define ymm9_x xmm9 +#define ymm10_x xmm10 +#define ymm11_x xmm11 +#define ymm12_x xmm12 +#define ymm13_x xmm13 +#define ymm14_x xmm14 +#define ymm15_x xmm15 + +/********************************************************************** + 32-way camellia + **********************************************************************/ + +/* + * IN: + * x0..x7: byte-sliced AB state + * mem_cd: register pointer storing CD state + * key: index for key material + * OUT: + * x0..x7: new byte-sliced CD state + */ +#define roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2, t3, t4, t5, t6, \ + t7, mem_cd, key) \ + /* \ + * S-function with AES subbytes \ + */ \ + vbroadcasti128 .Linv_shift_row, t4; \ + vpbroadcastd .L0f0f0f0f, t7; \ + vbroadcasti128 .Lpre_tf_lo_s1, t5; \ + vbroadcasti128 .Lpre_tf_hi_s1, t6; \ + vbroadcasti128 .Lpre_tf_lo_s4, t2; \ + vbroadcasti128 .Lpre_tf_hi_s4, t3; \ + \ + /* AES inverse shift rows */ \ + vpshufb t4, x0, x0; \ + vpshufb t4, x7, x7; \ + vpshufb t4, x3, x3; \ + vpshufb t4, x6, x6; \ + vpshufb t4, x2, x2; \ + vpshufb t4, x5, x5; \ + vpshufb t4, x1, x1; \ + vpshufb t4, x4, x4; \ + \ + /* prefilter sboxes 1, 2 and 3 */ \ + /* prefilter sbox 4 */ \ + filter_8bit(x0, t5, t6, t7, t4); \ + filter_8bit(x7, t5, t6, t7, t4); \ + vextracti128 $1, x0, t0##_x; \ + vextracti128 $1, x7, t1##_x; \ + filter_8bit(x3, t2, t3, t7, t4); \ + filter_8bit(x6, t2, t3, t7, t4); \ + vextracti128 $1, x3, t3##_x; \ + vextracti128 $1, x6, t2##_x; \ + filter_8bit(x2, t5, t6, t7, t4); \ + filter_8bit(x5, t5, t6, t7, t4); \ + filter_8bit(x1, t5, t6, t7, t4); \ + filter_8bit(x4, t5, t6, t7, t4); \ + \ + vpxor t4##_x, t4##_x, t4##_x; \ + \ + /* AES subbytes + AES shift rows */ \ + vextracti128 $1, x2, t6##_x; \ + vextracti128 $1, x5, t5##_x; \ + vaesenclast t4##_x, x0##_x, x0##_x; \ + vaesenclast t4##_x, t0##_x, t0##_x; \ + vinserti128 $1, t0##_x, x0, x0; \ + vaesenclast t4##_x, x7##_x, x7##_x; \ + vaesenclast t4##_x, t1##_x, t1##_x; \ + vinserti128 $1, t1##_x, x7, x7; \ + vaesenclast t4##_x, x3##_x, x3##_x; \ + vaesenclast t4##_x, t3##_x, t3##_x; \ + vinserti128 $1, t3##_x, x3, x3; \ + vaesenclast t4##_x, x6##_x, x6##_x; \ + vaesenclast t4##_x, t2##_x, t2##_x; \ + vinserti128 $1, t2##_x, x6, x6; \ + vextracti128 $1, x1, t3##_x; \ + vextracti128 $1, x4, t2##_x; \ + vbroadcasti128 .Lpost_tf_lo_s1, t0; \ + vbroadcasti128 .Lpost_tf_hi_s1, t1; \ + vaesenclast t4##_x, x2##_x, x2##_x; \ + vaesenclast t4##_x, t6##_x, t6##_x; \ + vinserti128 $1, t6##_x, x2, x2; \ + vaesenclast t4##_x, x5##_x, x5##_x; \ + vaesenclast t4##_x, t5##_x, t5##_x; \ + vinserti128 $1, t5##_x, x5, x5; \ + vaesenclast t4##_x, x1##_x, x1##_x; \ + vaesenclast t4##_x, t3##_x, t3##_x; \ + vinserti128 $1, t3##_x, x1, x1; \ + vaesenclast t4##_x, x4##_x, x4##_x; \ + vaesenclast t4##_x, t2##_x, t2##_x; \ + vinserti128 $1, t2##_x, x4, x4; \ + \ + /* postfilter sboxes 1 and 4 */ \ + vbroadcasti128 .Lpost_tf_lo_s3, t2; \ + vbroadcasti128 .Lpost_tf_hi_s3, t3; \ + filter_8bit(x0, t0, t1, t7, t6); \ + filter_8bit(x7, t0, t1, t7, t6); \ + filter_8bit(x3, t0, t1, t7, t6); \ + filter_8bit(x6, t0, t1, t7, t6); \ + \ + /* postfilter sbox 3 */ \ + vbroadcasti128 .Lpost_tf_lo_s2, t4; \ + vbroadcasti128 .Lpost_tf_hi_s2, t5; \ + filter_8bit(x2, t2, t3, t7, t6); \ + filter_8bit(x5, t2, t3, t7, t6); \ + \ + vpbroadcastq key, t0; /* higher 64-bit duplicate ignored */ \ + \ + /* postfilter sbox 2 */ \ + filter_8bit(x1, t4, t5, t7, t2); \ + filter_8bit(x4, t4, t5, t7, t2); \ + vpxor t7, t7, t7; \ + \ + vpsrldq $1, t0, t1; \ + vpsrldq $2, t0, t2; \ + vpshufb t7, t1, t1; \ + vpsrldq $3, t0, t3; \ + \ + /* P-function */ \ + vpxor x5, x0, x0; \ + vpxor x6, x1, x1; \ + vpxor x7, x2, x2; \ + vpxor x4, x3, x3; \ + \ + vpshufb t7, t2, t2; \ + vpsrldq $4, t0, t4; \ + vpshufb t7, t3, t3; \ + vpsrldq $5, t0, t5; \ + vpshufb t7, t4, t4; \ + \ + vpxor x2, x4, x4; \ + vpxor x3, x5, x5; \ + vpxor x0, x6, x6; \ + vpxor x1, x7, x7; \ + \ + vpsrldq $6, t0, t6; \ + vpshufb t7, t5, t5; \ + vpshufb t7, t6, t6; \ + \ + vpxor x7, x0, x0; \ + vpxor x4, x1, x1; \ + vpxor x5, x2, x2; \ + vpxor x6, x3, x3; \ + \ + vpxor x3, x4, x4; \ + vpxor x0, x5, x5; \ + vpxor x1, x6, x6; \ + vpxor x2, x7, x7; /* note: high and low parts swapped */ \ + \ + /* Add key material and result to CD (x becomes new CD) */ \ + \ + vpxor t6, x1, x1; \ + vpxor 5 * 32(mem_cd), x1, x1; \ + \ + vpsrldq $7, t0, t6; \ + vpshufb t7, t0, t0; \ + vpshufb t7, t6, t7; \ + \ + vpxor t7, x0, x0; \ + vpxor 4 * 32(mem_cd), x0, x0; \ + \ + vpxor t5, x2, x2; \ + vpxor 6 * 32(mem_cd), x2, x2; \ + \ + vpxor t4, x3, x3; \ + vpxor 7 * 32(mem_cd), x3, x3; \ + \ + vpxor t3, x4, x4; \ + vpxor 0 * 32(mem_cd), x4, x4; \ + \ + vpxor t2, x5, x5; \ + vpxor 1 * 32(mem_cd), x5, x5; \ + \ + vpxor t1, x6, x6; \ + vpxor 2 * 32(mem_cd), x6, x6; \ + \ + vpxor t0, x7, x7; \ + vpxor 3 * 32(mem_cd), x7, x7; + +/* + * Size optimization... with inlined roundsm32 binary would be over 5 times + * larger and would only marginally faster. + */ +.align 8 +roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd: + roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15, + %rcx, (%r9)); + ret; +ENDPROC(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd) + +.align 8 +roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab: + roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3, + %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11, + %rax, (%r9)); + ret; +ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) + +/* + * IN/OUT: + * x0..x7: byte-sliced AB state preloaded + * mem_ab: byte-sliced AB state in memory + * mem_cb: byte-sliced CD state in memory + */ +#define two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, i, dir, store_ab) \ + leaq (key_table + (i) * 8)(CTX), %r9; \ + call roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd; \ + \ + vmovdqu x0, 4 * 32(mem_cd); \ + vmovdqu x1, 5 * 32(mem_cd); \ + vmovdqu x2, 6 * 32(mem_cd); \ + vmovdqu x3, 7 * 32(mem_cd); \ + vmovdqu x4, 0 * 32(mem_cd); \ + vmovdqu x5, 1 * 32(mem_cd); \ + vmovdqu x6, 2 * 32(mem_cd); \ + vmovdqu x7, 3 * 32(mem_cd); \ + \ + leaq (key_table + ((i) + (dir)) * 8)(CTX), %r9; \ + call roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab; \ + \ + store_ab(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab); + +#define dummy_store(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) /* do nothing */ + +#define store_ab_state(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) \ + /* Store new AB state */ \ + vmovdqu x4, 4 * 32(mem_ab); \ + vmovdqu x5, 5 * 32(mem_ab); \ + vmovdqu x6, 6 * 32(mem_ab); \ + vmovdqu x7, 7 * 32(mem_ab); \ + vmovdqu x0, 0 * 32(mem_ab); \ + vmovdqu x1, 1 * 32(mem_ab); \ + vmovdqu x2, 2 * 32(mem_ab); \ + vmovdqu x3, 3 * 32(mem_ab); + +#define enc_rounds32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, i) \ + two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 2, 1, store_ab_state); \ + two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 4, 1, store_ab_state); \ + two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 6, 1, dummy_store); + +#define dec_rounds32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, i) \ + two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 7, -1, store_ab_state); \ + two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 5, -1, store_ab_state); \ + two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd, (i) + 3, -1, dummy_store); + +/* + * IN: + * v0..3: byte-sliced 32-bit integers + * OUT: + * v0..3: (IN <<< 1) + */ +#define rol32_1_32(v0, v1, v2, v3, t0, t1, t2, zero) \ + vpcmpgtb v0, zero, t0; \ + vpaddb v0, v0, v0; \ + vpabsb t0, t0; \ + \ + vpcmpgtb v1, zero, t1; \ + vpaddb v1, v1, v1; \ + vpabsb t1, t1; \ + \ + vpcmpgtb v2, zero, t2; \ + vpaddb v2, v2, v2; \ + vpabsb t2, t2; \ + \ + vpor t0, v1, v1; \ + \ + vpcmpgtb v3, zero, t0; \ + vpaddb v3, v3, v3; \ + vpabsb t0, t0; \ + \ + vpor t1, v2, v2; \ + vpor t2, v3, v3; \ + vpor t0, v0, v0; + +/* + * IN: + * r: byte-sliced AB state in memory + * l: byte-sliced CD state in memory + * OUT: + * x0..x7: new byte-sliced CD state + */ +#define fls32(l, l0, l1, l2, l3, l4, l5, l6, l7, r, t0, t1, t2, t3, tt0, \ + tt1, tt2, tt3, kll, klr, krl, krr) \ + /* \ + * t0 = kll; \ + * t0 &= ll; \ + * lr ^= rol32(t0, 1); \ + */ \ + vpbroadcastd kll, t0; /* only lowest 32-bit used */ \ + vpxor tt0, tt0, tt0; \ + vpshufb tt0, t0, t3; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t2; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t1; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t0; \ + \ + vpand l0, t0, t0; \ + vpand l1, t1, t1; \ + vpand l2, t2, t2; \ + vpand l3, t3, t3; \ + \ + rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \ + \ + vpxor l4, t0, l4; \ + vpbroadcastd krr, t0; /* only lowest 32-bit used */ \ + vmovdqu l4, 4 * 32(l); \ + vpxor l5, t1, l5; \ + vmovdqu l5, 5 * 32(l); \ + vpxor l6, t2, l6; \ + vmovdqu l6, 6 * 32(l); \ + vpxor l7, t3, l7; \ + vmovdqu l7, 7 * 32(l); \ + \ + /* \ + * t2 = krr; \ + * t2 |= rr; \ + * rl ^= t2; \ + */ \ + \ + vpshufb tt0, t0, t3; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t2; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t1; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t0; \ + \ + vpor 4 * 32(r), t0, t0; \ + vpor 5 * 32(r), t1, t1; \ + vpor 6 * 32(r), t2, t2; \ + vpor 7 * 32(r), t3, t3; \ + \ + vpxor 0 * 32(r), t0, t0; \ + vpxor 1 * 32(r), t1, t1; \ + vpxor 2 * 32(r), t2, t2; \ + vpxor 3 * 32(r), t3, t3; \ + vmovdqu t0, 0 * 32(r); \ + vpbroadcastd krl, t0; /* only lowest 32-bit used */ \ + vmovdqu t1, 1 * 32(r); \ + vmovdqu t2, 2 * 32(r); \ + vmovdqu t3, 3 * 32(r); \ + \ + /* \ + * t2 = krl; \ + * t2 &= rl; \ + * rr ^= rol32(t2, 1); \ + */ \ + vpshufb tt0, t0, t3; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t2; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t1; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t0; \ + \ + vpand 0 * 32(r), t0, t0; \ + vpand 1 * 32(r), t1, t1; \ + vpand 2 * 32(r), t2, t2; \ + vpand 3 * 32(r), t3, t3; \ + \ + rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \ + \ + vpxor 4 * 32(r), t0, t0; \ + vpxor 5 * 32(r), t1, t1; \ + vpxor 6 * 32(r), t2, t2; \ + vpxor 7 * 32(r), t3, t3; \ + vmovdqu t0, 4 * 32(r); \ + vpbroadcastd klr, t0; /* only lowest 32-bit used */ \ + vmovdqu t1, 5 * 32(r); \ + vmovdqu t2, 6 * 32(r); \ + vmovdqu t3, 7 * 32(r); \ + \ + /* \ + * t0 = klr; \ + * t0 |= lr; \ + * ll ^= t0; \ + */ \ + \ + vpshufb tt0, t0, t3; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t2; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t1; \ + vpsrldq $1, t0, t0; \ + vpshufb tt0, t0, t0; \ + \ + vpor l4, t0, t0; \ + vpor l5, t1, t1; \ + vpor l6, t2, t2; \ + vpor l7, t3, t3; \ + \ + vpxor l0, t0, l0; \ + vmovdqu l0, 0 * 32(l); \ + vpxor l1, t1, l1; \ + vmovdqu l1, 1 * 32(l); \ + vpxor l2, t2, l2; \ + vmovdqu l2, 2 * 32(l); \ + vpxor l3, t3, l3; \ + vmovdqu l3, 3 * 32(l); + +#define transpose_4x4(x0, x1, x2, x3, t1, t2) \ + vpunpckhdq x1, x0, t2; \ + vpunpckldq x1, x0, x0; \ + \ + vpunpckldq x3, x2, t1; \ + vpunpckhdq x3, x2, x2; \ + \ + vpunpckhqdq t1, x0, x1; \ + vpunpcklqdq t1, x0, x0; \ + \ + vpunpckhqdq x2, t2, x3; \ + vpunpcklqdq x2, t2, x2; + +#define byteslice_16x16b_fast(a0, b0, c0, d0, a1, b1, c1, d1, a2, b2, c2, d2, \ + a3, b3, c3, d3, st0, st1) \ + vmovdqu d2, st0; \ + vmovdqu d3, st1; \ + transpose_4x4(a0, a1, a2, a3, d2, d3); \ + transpose_4x4(b0, b1, b2, b3, d2, d3); \ + vmovdqu st0, d2; \ + vmovdqu st1, d3; \ + \ + vmovdqu a0, st0; \ + vmovdqu a1, st1; \ + transpose_4x4(c0, c1, c2, c3, a0, a1); \ + transpose_4x4(d0, d1, d2, d3, a0, a1); \ + \ + vbroadcasti128 .Lshufb_16x16b, a0; \ + vmovdqu st1, a1; \ + vpshufb a0, a2, a2; \ + vpshufb a0, a3, a3; \ + vpshufb a0, b0, b0; \ + vpshufb a0, b1, b1; \ + vpshufb a0, b2, b2; \ + vpshufb a0, b3, b3; \ + vpshufb a0, a1, a1; \ + vpshufb a0, c0, c0; \ + vpshufb a0, c1, c1; \ + vpshufb a0, c2, c2; \ + vpshufb a0, c3, c3; \ + vpshufb a0, d0, d0; \ + vpshufb a0, d1, d1; \ + vpshufb a0, d2, d2; \ + vpshufb a0, d3, d3; \ + vmovdqu d3, st1; \ + vmovdqu st0, d3; \ + vpshufb a0, d3, a0; \ + vmovdqu d2, st0; \ + \ + transpose_4x4(a0, b0, c0, d0, d2, d3); \ + transpose_4x4(a1, b1, c1, d1, d2, d3); \ + vmovdqu st0, d2; \ + vmovdqu st1, d3; \ + \ + vmovdqu b0, st0; \ + vmovdqu b1, st1; \ + transpose_4x4(a2, b2, c2, d2, b0, b1); \ + transpose_4x4(a3, b3, c3, d3, b0, b1); \ + vmovdqu st0, b0; \ + vmovdqu st1, b1; \ + /* does not adjust output bytes inside vectors */ + +/* load blocks to registers and apply pre-whitening */ +#define inpack32_pre(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, rio, key) \ + vpbroadcastq key, x0; \ + vpshufb .Lpack_bswap, x0, x0; \ + \ + vpxor 0 * 32(rio), x0, y7; \ + vpxor 1 * 32(rio), x0, y6; \ + vpxor 2 * 32(rio), x0, y5; \ + vpxor 3 * 32(rio), x0, y4; \ + vpxor 4 * 32(rio), x0, y3; \ + vpxor 5 * 32(rio), x0, y2; \ + vpxor 6 * 32(rio), x0, y1; \ + vpxor 7 * 32(rio), x0, y0; \ + vpxor 8 * 32(rio), x0, x7; \ + vpxor 9 * 32(rio), x0, x6; \ + vpxor 10 * 32(rio), x0, x5; \ + vpxor 11 * 32(rio), x0, x4; \ + vpxor 12 * 32(rio), x0, x3; \ + vpxor 13 * 32(rio), x0, x2; \ + vpxor 14 * 32(rio), x0, x1; \ + vpxor 15 * 32(rio), x0, x0; + +/* byteslice pre-whitened blocks and store to temporary memory */ +#define inpack32_post(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, mem_ab, mem_cd) \ + byteslice_16x16b_fast(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, \ + y4, y5, y6, y7, (mem_ab), (mem_cd)); \ + \ + vmovdqu x0, 0 * 32(mem_ab); \ + vmovdqu x1, 1 * 32(mem_ab); \ + vmovdqu x2, 2 * 32(mem_ab); \ + vmovdqu x3, 3 * 32(mem_ab); \ + vmovdqu x4, 4 * 32(mem_ab); \ + vmovdqu x5, 5 * 32(mem_ab); \ + vmovdqu x6, 6 * 32(mem_ab); \ + vmovdqu x7, 7 * 32(mem_ab); \ + vmovdqu y0, 0 * 32(mem_cd); \ + vmovdqu y1, 1 * 32(mem_cd); \ + vmovdqu y2, 2 * 32(mem_cd); \ + vmovdqu y3, 3 * 32(mem_cd); \ + vmovdqu y4, 4 * 32(mem_cd); \ + vmovdqu y5, 5 * 32(mem_cd); \ + vmovdqu y6, 6 * 32(mem_cd); \ + vmovdqu y7, 7 * 32(mem_cd); + +/* de-byteslice, apply post-whitening and store blocks */ +#define outunpack32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \ + y5, y6, y7, key, stack_tmp0, stack_tmp1) \ + byteslice_16x16b_fast(y0, y4, x0, x4, y1, y5, x1, x5, y2, y6, x2, x6, \ + y3, y7, x3, x7, stack_tmp0, stack_tmp1); \ + \ + vmovdqu x0, stack_tmp0; \ + \ + vpbroadcastq key, x0; \ + vpshufb .Lpack_bswap, x0, x0; \ + \ + vpxor x0, y7, y7; \ + vpxor x0, y6, y6; \ + vpxor x0, y5, y5; \ + vpxor x0, y4, y4; \ + vpxor x0, y3, y3; \ + vpxor x0, y2, y2; \ + vpxor x0, y1, y1; \ + vpxor x0, y0, y0; \ + vpxor x0, x7, x7; \ + vpxor x0, x6, x6; \ + vpxor x0, x5, x5; \ + vpxor x0, x4, x4; \ + vpxor x0, x3, x3; \ + vpxor x0, x2, x2; \ + vpxor x0, x1, x1; \ + vpxor stack_tmp0, x0, x0; + +#define write_output(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \ + y6, y7, rio) \ + vmovdqu x0, 0 * 32(rio); \ + vmovdqu x1, 1 * 32(rio); \ + vmovdqu x2, 2 * 32(rio); \ + vmovdqu x3, 3 * 32(rio); \ + vmovdqu x4, 4 * 32(rio); \ + vmovdqu x5, 5 * 32(rio); \ + vmovdqu x6, 6 * 32(rio); \ + vmovdqu x7, 7 * 32(rio); \ + vmovdqu y0, 8 * 32(rio); \ + vmovdqu y1, 9 * 32(rio); \ + vmovdqu y2, 10 * 32(rio); \ + vmovdqu y3, 11 * 32(rio); \ + vmovdqu y4, 12 * 32(rio); \ + vmovdqu y5, 13 * 32(rio); \ + vmovdqu y6, 14 * 32(rio); \ + vmovdqu y7, 15 * 32(rio); + + +.section .rodata.cst32.shufb_16x16b, "aM", @progbits, 32 +.align 32 +#define SHUFB_BYTES(idx) \ + 0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx) +.Lshufb_16x16b: + .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3) + .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3) + +.section .rodata.cst32.pack_bswap, "aM", @progbits, 32 +.align 32 +.Lpack_bswap: + .long 0x00010203, 0x04050607, 0x80808080, 0x80808080 + .long 0x00010203, 0x04050607, 0x80808080, 0x80808080 + +/* NB: section is mergeable, all elements must be aligned 16-byte blocks */ +.section .rodata.cst16, "aM", @progbits, 16 +.align 16 + +/* For CTR-mode IV byteswap */ +.Lbswap128_mask: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 + +/* For XTS mode */ +.Lxts_gf128mul_and_shl1_mask_0: + .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 +.Lxts_gf128mul_and_shl1_mask_1: + .byte 0x0e, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0 + +/* + * pre-SubByte transform + * + * pre-lookup for sbox1, sbox2, sbox3: + * swap_bitendianness( + * isom_map_camellia_to_aes( + * camellia_f( + * swap_bitendianess(in) + * ) + * ) + * ) + * + * (note: '⊕ 0xc5' inside camellia_f()) + */ +.Lpre_tf_lo_s1: + .byte 0x45, 0xe8, 0x40, 0xed, 0x2e, 0x83, 0x2b, 0x86 + .byte 0x4b, 0xe6, 0x4e, 0xe3, 0x20, 0x8d, 0x25, 0x88 +.Lpre_tf_hi_s1: + .byte 0x00, 0x51, 0xf1, 0xa0, 0x8a, 0xdb, 0x7b, 0x2a + .byte 0x09, 0x58, 0xf8, 0xa9, 0x83, 0xd2, 0x72, 0x23 + +/* + * pre-SubByte transform + * + * pre-lookup for sbox4: + * swap_bitendianness( + * isom_map_camellia_to_aes( + * camellia_f( + * swap_bitendianess(in <<< 1) + * ) + * ) + * ) + * + * (note: '⊕ 0xc5' inside camellia_f()) + */ +.Lpre_tf_lo_s4: + .byte 0x45, 0x40, 0x2e, 0x2b, 0x4b, 0x4e, 0x20, 0x25 + .byte 0x14, 0x11, 0x7f, 0x7a, 0x1a, 0x1f, 0x71, 0x74 +.Lpre_tf_hi_s4: + .byte 0x00, 0xf1, 0x8a, 0x7b, 0x09, 0xf8, 0x83, 0x72 + .byte 0xad, 0x5c, 0x27, 0xd6, 0xa4, 0x55, 0x2e, 0xdf + +/* + * post-SubByte transform + * + * post-lookup for sbox1, sbox4: + * swap_bitendianness( + * camellia_h( + * isom_map_aes_to_camellia( + * swap_bitendianness( + * aes_inverse_affine_transform(in) + * ) + * ) + * ) + * ) + * + * (note: '⊕ 0x6e' inside camellia_h()) + */ +.Lpost_tf_lo_s1: + .byte 0x3c, 0xcc, 0xcf, 0x3f, 0x32, 0xc2, 0xc1, 0x31 + .byte 0xdc, 0x2c, 0x2f, 0xdf, 0xd2, 0x22, 0x21, 0xd1 +.Lpost_tf_hi_s1: + .byte 0x00, 0xf9, 0x86, 0x7f, 0xd7, 0x2e, 0x51, 0xa8 + .byte 0xa4, 0x5d, 0x22, 0xdb, 0x73, 0x8a, 0xf5, 0x0c + +/* + * post-SubByte transform + * + * post-lookup for sbox2: + * swap_bitendianness( + * camellia_h( + * isom_map_aes_to_camellia( + * swap_bitendianness( + * aes_inverse_affine_transform(in) + * ) + * ) + * ) + * ) <<< 1 + * + * (note: '⊕ 0x6e' inside camellia_h()) + */ +.Lpost_tf_lo_s2: + .byte 0x78, 0x99, 0x9f, 0x7e, 0x64, 0x85, 0x83, 0x62 + .byte 0xb9, 0x58, 0x5e, 0xbf, 0xa5, 0x44, 0x42, 0xa3 +.Lpost_tf_hi_s2: + .byte 0x00, 0xf3, 0x0d, 0xfe, 0xaf, 0x5c, 0xa2, 0x51 + .byte 0x49, 0xba, 0x44, 0xb7, 0xe6, 0x15, 0xeb, 0x18 + +/* + * post-SubByte transform + * + * post-lookup for sbox3: + * swap_bitendianness( + * camellia_h( + * isom_map_aes_to_camellia( + * swap_bitendianness( + * aes_inverse_affine_transform(in) + * ) + * ) + * ) + * ) >>> 1 + * + * (note: '⊕ 0x6e' inside camellia_h()) + */ +.Lpost_tf_lo_s3: + .byte 0x1e, 0x66, 0xe7, 0x9f, 0x19, 0x61, 0xe0, 0x98 + .byte 0x6e, 0x16, 0x97, 0xef, 0x69, 0x11, 0x90, 0xe8 +.Lpost_tf_hi_s3: + .byte 0x00, 0xfc, 0x43, 0xbf, 0xeb, 0x17, 0xa8, 0x54 + .byte 0x52, 0xae, 0x11, 0xed, 0xb9, 0x45, 0xfa, 0x06 + +/* For isolating SubBytes from AESENCLAST, inverse shift row */ +.Linv_shift_row: + .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b + .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03 + +.section .rodata.cst4.L0f0f0f0f, "aM", @progbits, 4 +.align 4 +/* 4-bit mask */ +.L0f0f0f0f: + .long 0x0f0f0f0f + +.text + +.align 8 +__camellia_enc_blk32: + /* input: + * %rdi: ctx, CTX + * %rax: temporary storage, 512 bytes + * %ymm0..%ymm15: 32 plaintext blocks + * output: + * %ymm0..%ymm15: 32 encrypted blocks, order swapped: + * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8 + */ + FRAME_BEGIN + + leaq 8 * 32(%rax), %rcx; + + inpack32_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx); + + enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx, 0); + + fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, + ((key_table + (8) * 8) + 0)(CTX), + ((key_table + (8) * 8) + 4)(CTX), + ((key_table + (8) * 8) + 8)(CTX), + ((key_table + (8) * 8) + 12)(CTX)); + + enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx, 8); + + fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, + ((key_table + (16) * 8) + 0)(CTX), + ((key_table + (16) * 8) + 4)(CTX), + ((key_table + (16) * 8) + 8)(CTX), + ((key_table + (16) * 8) + 12)(CTX)); + + enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx, 16); + + movl $24, %r8d; + cmpl $16, key_length(CTX); + jne .Lenc_max32; + +.Lenc_done: + /* load CD for output */ + vmovdqu 0 * 32(%rcx), %ymm8; + vmovdqu 1 * 32(%rcx), %ymm9; + vmovdqu 2 * 32(%rcx), %ymm10; + vmovdqu 3 * 32(%rcx), %ymm11; + vmovdqu 4 * 32(%rcx), %ymm12; + vmovdqu 5 * 32(%rcx), %ymm13; + vmovdqu 6 * 32(%rcx), %ymm14; + vmovdqu 7 * 32(%rcx), %ymm15; + + outunpack32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax)); + + FRAME_END + ret; + +.align 8 +.Lenc_max32: + movl $32, %r8d; + + fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, + ((key_table + (24) * 8) + 0)(CTX), + ((key_table + (24) * 8) + 4)(CTX), + ((key_table + (24) * 8) + 8)(CTX), + ((key_table + (24) * 8) + 12)(CTX)); + + enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx, 24); + + jmp .Lenc_done; +ENDPROC(__camellia_enc_blk32) + +.align 8 +__camellia_dec_blk32: + /* input: + * %rdi: ctx, CTX + * %rax: temporary storage, 512 bytes + * %r8d: 24 for 16 byte key, 32 for larger + * %ymm0..%ymm15: 16 encrypted blocks + * output: + * %ymm0..%ymm15: 16 plaintext blocks, order swapped: + * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8 + */ + FRAME_BEGIN + + leaq 8 * 32(%rax), %rcx; + + inpack32_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx); + + cmpl $32, %r8d; + je .Ldec_max32; + +.Ldec_max24: + dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx, 16); + + fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, + ((key_table + (16) * 8) + 8)(CTX), + ((key_table + (16) * 8) + 12)(CTX), + ((key_table + (16) * 8) + 0)(CTX), + ((key_table + (16) * 8) + 4)(CTX)); + + dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx, 8); + + fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, + ((key_table + (8) * 8) + 8)(CTX), + ((key_table + (8) * 8) + 12)(CTX), + ((key_table + (8) * 8) + 0)(CTX), + ((key_table + (8) * 8) + 4)(CTX)); + + dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx, 0); + + /* load CD for output */ + vmovdqu 0 * 32(%rcx), %ymm8; + vmovdqu 1 * 32(%rcx), %ymm9; + vmovdqu 2 * 32(%rcx), %ymm10; + vmovdqu 3 * 32(%rcx), %ymm11; + vmovdqu 4 * 32(%rcx), %ymm12; + vmovdqu 5 * 32(%rcx), %ymm13; + vmovdqu 6 * 32(%rcx), %ymm14; + vmovdqu 7 * 32(%rcx), %ymm15; + + outunpack32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax)); + + FRAME_END + ret; + +.align 8 +.Ldec_max32: + dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rax, %rcx, 24); + + fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, + ((key_table + (24) * 8) + 8)(CTX), + ((key_table + (24) * 8) + 12)(CTX), + ((key_table + (24) * 8) + 0)(CTX), + ((key_table + (24) * 8) + 4)(CTX)); + + jmp .Ldec_max24; +ENDPROC(__camellia_dec_blk32) + +ENTRY(camellia_ecb_enc_32way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (32 blocks) + * %rdx: src (32 blocks) + */ + FRAME_BEGIN + + vzeroupper; + + inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rdx, (key_table)(CTX)); + + /* now dst can be used as temporary buffer (even in src == dst case) */ + movq %rsi, %rax; + + call __camellia_enc_blk32; + + write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0, + %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9, + %ymm8, %rsi); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(camellia_ecb_enc_32way) + +ENTRY(camellia_ecb_dec_32way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (32 blocks) + * %rdx: src (32 blocks) + */ + FRAME_BEGIN + + vzeroupper; + + cmpl $16, key_length(CTX); + movl $32, %r8d; + movl $24, %eax; + cmovel %eax, %r8d; /* max */ + + inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rdx, (key_table)(CTX, %r8, 8)); + + /* now dst can be used as temporary buffer (even in src == dst case) */ + movq %rsi, %rax; + + call __camellia_dec_blk32; + + write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0, + %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9, + %ymm8, %rsi); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(camellia_ecb_dec_32way) + +ENTRY(camellia_cbc_dec_32way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (32 blocks) + * %rdx: src (32 blocks) + */ + FRAME_BEGIN + + vzeroupper; + + cmpl $16, key_length(CTX); + movl $32, %r8d; + movl $24, %eax; + cmovel %eax, %r8d; /* max */ + + inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7, + %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, + %ymm15, %rdx, (key_table)(CTX, %r8, 8)); + + movq %rsp, %r10; + cmpq %rsi, %rdx; + je .Lcbc_dec_use_stack; + + /* dst can be used as temporary storage, src is not overwritten. */ + movq %rsi, %rax; + jmp .Lcbc_dec_continue; + +.Lcbc_dec_use_stack: + /* + * dst still in-use (because dst == src), so use stack for temporary + * storage. + */ + subq $(16 * 32), %rsp; + movq %rsp, %rax; + +.Lcbc_dec_continue: + call __camellia_dec_blk32; + + vmovdqu %ymm7, (%rax); + vpxor %ymm7, %ymm7, %ymm7; + vinserti128 $1, (%rdx), %ymm7, %ymm7; + vpxor (%rax), %ymm7, %ymm7; + movq %r10, %rsp; + vpxor (0 * 32 + 16)(%rdx), %ymm6, %ymm6; + vpxor (1 * 32 + 16)(%rdx), %ymm5, %ymm5; + vpxor (2 * 32 + 16)(%rdx), %ymm4, %ymm4; + vpxor (3 * 32 + 16)(%rdx), %ymm3, %ymm3; + vpxor (4 * 32 + 16)(%rdx), %ymm2, %ymm2; + vpxor (5 * 32 + 16)(%rdx), %ymm1, %ymm1; + vpxor (6 * 32 + 16)(%rdx), %ymm0, %ymm0; + vpxor (7 * 32 + 16)(%rdx), %ymm15, %ymm15; + vpxor (8 * 32 + 16)(%rdx), %ymm14, %ymm14; + vpxor (9 * 32 + 16)(%rdx), %ymm13, %ymm13; + vpxor (10 * 32 + 16)(%rdx), %ymm12, %ymm12; + vpxor (11 * 32 + 16)(%rdx), %ymm11, %ymm11; + vpxor (12 * 32 + 16)(%rdx), %ymm10, %ymm10; + vpxor (13 * 32 + 16)(%rdx), %ymm9, %ymm9; + vpxor (14 * 32 + 16)(%rdx), %ymm8, %ymm8; + write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0, + %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9, + %ymm8, %rsi); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(camellia_cbc_dec_32way) + +#define inc_le128(x, minus_one, tmp) \ + vpcmpeqq minus_one, x, tmp; \ + vpsubq minus_one, x, x; \ + vpslldq $8, tmp, tmp; \ + vpsubq tmp, x, x; + +#define add2_le128(x, minus_one, minus_two, tmp1, tmp2) \ + vpcmpeqq minus_one, x, tmp1; \ + vpcmpeqq minus_two, x, tmp2; \ + vpsubq minus_two, x, x; \ + vpor tmp2, tmp1, tmp1; \ + vpslldq $8, tmp1, tmp1; \ + vpsubq tmp1, x, x; + +ENTRY(camellia_ctr_32way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (32 blocks) + * %rdx: src (32 blocks) + * %rcx: iv (little endian, 128bit) + */ + FRAME_BEGIN + + vzeroupper; + + movq %rsp, %r10; + cmpq %rsi, %rdx; + je .Lctr_use_stack; + + /* dst can be used as temporary storage, src is not overwritten. */ + movq %rsi, %rax; + jmp .Lctr_continue; + +.Lctr_use_stack: + subq $(16 * 32), %rsp; + movq %rsp, %rax; + +.Lctr_continue: + vpcmpeqd %ymm15, %ymm15, %ymm15; + vpsrldq $8, %ymm15, %ymm15; /* ab: -1:0 ; cd: -1:0 */ + vpaddq %ymm15, %ymm15, %ymm12; /* ab: -2:0 ; cd: -2:0 */ + + /* load IV and byteswap */ + vmovdqu (%rcx), %xmm0; + vmovdqa %xmm0, %xmm1; + inc_le128(%xmm0, %xmm15, %xmm14); + vbroadcasti128 .Lbswap128_mask, %ymm14; + vinserti128 $1, %xmm0, %ymm1, %ymm0; + vpshufb %ymm14, %ymm0, %ymm13; + vmovdqu %ymm13, 15 * 32(%rax); + + /* construct IVs */ + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); /* ab:le2 ; cd:le3 */ + vpshufb %ymm14, %ymm0, %ymm13; + vmovdqu %ymm13, 14 * 32(%rax); + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm13; + vmovdqu %ymm13, 13 * 32(%rax); + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm13; + vmovdqu %ymm13, 12 * 32(%rax); + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm13; + vmovdqu %ymm13, 11 * 32(%rax); + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm10; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm9; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm8; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm7; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm6; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm5; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm4; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm3; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm2; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vpshufb %ymm14, %ymm0, %ymm1; + add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); + vextracti128 $1, %ymm0, %xmm13; + vpshufb %ymm14, %ymm0, %ymm0; + inc_le128(%xmm13, %xmm15, %xmm14); + vmovdqu %xmm13, (%rcx); + + /* inpack32_pre: */ + vpbroadcastq (key_table)(CTX), %ymm15; + vpshufb .Lpack_bswap, %ymm15, %ymm15; + vpxor %ymm0, %ymm15, %ymm0; + vpxor %ymm1, %ymm15, %ymm1; + vpxor %ymm2, %ymm15, %ymm2; + vpxor %ymm3, %ymm15, %ymm3; + vpxor %ymm4, %ymm15, %ymm4; + vpxor %ymm5, %ymm15, %ymm5; + vpxor %ymm6, %ymm15, %ymm6; + vpxor %ymm7, %ymm15, %ymm7; + vpxor %ymm8, %ymm15, %ymm8; + vpxor %ymm9, %ymm15, %ymm9; + vpxor %ymm10, %ymm15, %ymm10; + vpxor 11 * 32(%rax), %ymm15, %ymm11; + vpxor 12 * 32(%rax), %ymm15, %ymm12; + vpxor 13 * 32(%rax), %ymm15, %ymm13; + vpxor 14 * 32(%rax), %ymm15, %ymm14; + vpxor 15 * 32(%rax), %ymm15, %ymm15; + + call __camellia_enc_blk32; + + movq %r10, %rsp; + + vpxor 0 * 32(%rdx), %ymm7, %ymm7; + vpxor 1 * 32(%rdx), %ymm6, %ymm6; + vpxor 2 * 32(%rdx), %ymm5, %ymm5; + vpxor 3 * 32(%rdx), %ymm4, %ymm4; + vpxor 4 * 32(%rdx), %ymm3, %ymm3; + vpxor 5 * 32(%rdx), %ymm2, %ymm2; + vpxor 6 * 32(%rdx), %ymm1, %ymm1; + vpxor 7 * 32(%rdx), %ymm0, %ymm0; + vpxor 8 * 32(%rdx), %ymm15, %ymm15; + vpxor 9 * 32(%rdx), %ymm14, %ymm14; + vpxor 10 * 32(%rdx), %ymm13, %ymm13; + vpxor 11 * 32(%rdx), %ymm12, %ymm12; + vpxor 12 * 32(%rdx), %ymm11, %ymm11; + vpxor 13 * 32(%rdx), %ymm10, %ymm10; + vpxor 14 * 32(%rdx), %ymm9, %ymm9; + vpxor 15 * 32(%rdx), %ymm8, %ymm8; + write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0, + %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9, + %ymm8, %rsi); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(camellia_ctr_32way) + +#define gf128mul_x_ble(iv, mask, tmp) \ + vpsrad $31, iv, tmp; \ + vpaddq iv, iv, iv; \ + vpshufd $0x13, tmp, tmp; \ + vpand mask, tmp, tmp; \ + vpxor tmp, iv, iv; + +#define gf128mul_x2_ble(iv, mask1, mask2, tmp0, tmp1) \ + vpsrad $31, iv, tmp0; \ + vpaddq iv, iv, tmp1; \ + vpsllq $2, iv, iv; \ + vpshufd $0x13, tmp0, tmp0; \ + vpsrad $31, tmp1, tmp1; \ + vpand mask2, tmp0, tmp0; \ + vpshufd $0x13, tmp1, tmp1; \ + vpxor tmp0, iv, iv; \ + vpand mask1, tmp1, tmp1; \ + vpxor tmp1, iv, iv; + +.align 8 +camellia_xts_crypt_32way: + /* input: + * %rdi: ctx, CTX + * %rsi: dst (32 blocks) + * %rdx: src (32 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + * %r8: index for input whitening key + * %r9: pointer to __camellia_enc_blk32 or __camellia_dec_blk32 + */ + FRAME_BEGIN + + vzeroupper; + + subq $(16 * 32), %rsp; + movq %rsp, %rax; + + vbroadcasti128 .Lxts_gf128mul_and_shl1_mask_0, %ymm12; + + /* load IV and construct second IV */ + vmovdqu (%rcx), %xmm0; + vmovdqa %xmm0, %xmm15; + gf128mul_x_ble(%xmm0, %xmm12, %xmm13); + vbroadcasti128 .Lxts_gf128mul_and_shl1_mask_1, %ymm13; + vinserti128 $1, %xmm0, %ymm15, %ymm0; + vpxor 0 * 32(%rdx), %ymm0, %ymm15; + vmovdqu %ymm15, 15 * 32(%rax); + vmovdqu %ymm0, 0 * 32(%rsi); + + /* construct IVs */ + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 1 * 32(%rdx), %ymm0, %ymm15; + vmovdqu %ymm15, 14 * 32(%rax); + vmovdqu %ymm0, 1 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 2 * 32(%rdx), %ymm0, %ymm15; + vmovdqu %ymm15, 13 * 32(%rax); + vmovdqu %ymm0, 2 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 3 * 32(%rdx), %ymm0, %ymm15; + vmovdqu %ymm15, 12 * 32(%rax); + vmovdqu %ymm0, 3 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 4 * 32(%rdx), %ymm0, %ymm11; + vmovdqu %ymm0, 4 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 5 * 32(%rdx), %ymm0, %ymm10; + vmovdqu %ymm0, 5 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 6 * 32(%rdx), %ymm0, %ymm9; + vmovdqu %ymm0, 6 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 7 * 32(%rdx), %ymm0, %ymm8; + vmovdqu %ymm0, 7 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 8 * 32(%rdx), %ymm0, %ymm7; + vmovdqu %ymm0, 8 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 9 * 32(%rdx), %ymm0, %ymm6; + vmovdqu %ymm0, 9 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 10 * 32(%rdx), %ymm0, %ymm5; + vmovdqu %ymm0, 10 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 11 * 32(%rdx), %ymm0, %ymm4; + vmovdqu %ymm0, 11 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 12 * 32(%rdx), %ymm0, %ymm3; + vmovdqu %ymm0, 12 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 13 * 32(%rdx), %ymm0, %ymm2; + vmovdqu %ymm0, 13 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 14 * 32(%rdx), %ymm0, %ymm1; + vmovdqu %ymm0, 14 * 32(%rsi); + + gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15); + vpxor 15 * 32(%rdx), %ymm0, %ymm15; + vmovdqu %ymm15, 0 * 32(%rax); + vmovdqu %ymm0, 15 * 32(%rsi); + + vextracti128 $1, %ymm0, %xmm0; + gf128mul_x_ble(%xmm0, %xmm12, %xmm15); + vmovdqu %xmm0, (%rcx); + + /* inpack32_pre: */ + vpbroadcastq (key_table)(CTX, %r8, 8), %ymm15; + vpshufb .Lpack_bswap, %ymm15, %ymm15; + vpxor 0 * 32(%rax), %ymm15, %ymm0; + vpxor %ymm1, %ymm15, %ymm1; + vpxor %ymm2, %ymm15, %ymm2; + vpxor %ymm3, %ymm15, %ymm3; + vpxor %ymm4, %ymm15, %ymm4; + vpxor %ymm5, %ymm15, %ymm5; + vpxor %ymm6, %ymm15, %ymm6; + vpxor %ymm7, %ymm15, %ymm7; + vpxor %ymm8, %ymm15, %ymm8; + vpxor %ymm9, %ymm15, %ymm9; + vpxor %ymm10, %ymm15, %ymm10; + vpxor %ymm11, %ymm15, %ymm11; + vpxor 12 * 32(%rax), %ymm15, %ymm12; + vpxor 13 * 32(%rax), %ymm15, %ymm13; + vpxor 14 * 32(%rax), %ymm15, %ymm14; + vpxor 15 * 32(%rax), %ymm15, %ymm15; + + CALL_NOSPEC %r9; + + addq $(16 * 32), %rsp; + + vpxor 0 * 32(%rsi), %ymm7, %ymm7; + vpxor 1 * 32(%rsi), %ymm6, %ymm6; + vpxor 2 * 32(%rsi), %ymm5, %ymm5; + vpxor 3 * 32(%rsi), %ymm4, %ymm4; + vpxor 4 * 32(%rsi), %ymm3, %ymm3; + vpxor 5 * 32(%rsi), %ymm2, %ymm2; + vpxor 6 * 32(%rsi), %ymm1, %ymm1; + vpxor 7 * 32(%rsi), %ymm0, %ymm0; + vpxor 8 * 32(%rsi), %ymm15, %ymm15; + vpxor 9 * 32(%rsi), %ymm14, %ymm14; + vpxor 10 * 32(%rsi), %ymm13, %ymm13; + vpxor 11 * 32(%rsi), %ymm12, %ymm12; + vpxor 12 * 32(%rsi), %ymm11, %ymm11; + vpxor 13 * 32(%rsi), %ymm10, %ymm10; + vpxor 14 * 32(%rsi), %ymm9, %ymm9; + vpxor 15 * 32(%rsi), %ymm8, %ymm8; + write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0, + %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9, + %ymm8, %rsi); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(camellia_xts_crypt_32way) + +ENTRY(camellia_xts_enc_32way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (32 blocks) + * %rdx: src (32 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + + xorl %r8d, %r8d; /* input whitening key, 0 for enc */ + + leaq __camellia_enc_blk32, %r9; + + jmp camellia_xts_crypt_32way; +ENDPROC(camellia_xts_enc_32way) + +ENTRY(camellia_xts_dec_32way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (32 blocks) + * %rdx: src (32 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + + cmpl $16, key_length(CTX); + movl $32, %r8d; + movl $24, %eax; + cmovel %eax, %r8d; /* input whitening key, last for dec */ + + leaq __camellia_dec_blk32, %r9; + + jmp camellia_xts_crypt_32way; +ENDPROC(camellia_xts_dec_32way) diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S new file mode 100644 index 000000000..95ba6956a --- /dev/null +++ b/arch/x86/crypto/camellia-x86_64-asm_64.S @@ -0,0 +1,514 @@ +/* + * Camellia Cipher Algorithm (x86_64) + * + * Copyright (C) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> + +.file "camellia-x86_64-asm_64.S" +.text + +.extern camellia_sp10011110; +.extern camellia_sp22000222; +.extern camellia_sp03303033; +.extern camellia_sp00444404; +.extern camellia_sp02220222; +.extern camellia_sp30333033; +.extern camellia_sp44044404; +.extern camellia_sp11101110; + +#define sp10011110 camellia_sp10011110 +#define sp22000222 camellia_sp22000222 +#define sp03303033 camellia_sp03303033 +#define sp00444404 camellia_sp00444404 +#define sp02220222 camellia_sp02220222 +#define sp30333033 camellia_sp30333033 +#define sp44044404 camellia_sp44044404 +#define sp11101110 camellia_sp11101110 + +#define CAMELLIA_TABLE_BYTE_LEN 272 + +/* struct camellia_ctx: */ +#define key_table 0 +#define key_length CAMELLIA_TABLE_BYTE_LEN + +/* register macros */ +#define CTX %rdi +#define RIO %rsi +#define RIOd %esi + +#define RAB0 %rax +#define RCD0 %rcx +#define RAB1 %rbx +#define RCD1 %rdx + +#define RAB0d %eax +#define RCD0d %ecx +#define RAB1d %ebx +#define RCD1d %edx + +#define RAB0bl %al +#define RCD0bl %cl +#define RAB1bl %bl +#define RCD1bl %dl + +#define RAB0bh %ah +#define RCD0bh %ch +#define RAB1bh %bh +#define RCD1bh %dh + +#define RT0 %rsi +#define RT1 %r12 +#define RT2 %r8 + +#define RT0d %esi +#define RT1d %r12d +#define RT2d %r8d + +#define RT2bl %r8b + +#define RXOR %r9 +#define RR12 %r10 +#define RDST %r11 + +#define RXORd %r9d +#define RXORbl %r9b + +#define xor2ror16(T0, T1, tmp1, tmp2, ab, dst) \ + movzbl ab ## bl, tmp2 ## d; \ + movzbl ab ## bh, tmp1 ## d; \ + rorq $16, ab; \ + xorq T0(, tmp2, 8), dst; \ + xorq T1(, tmp1, 8), dst; + +/********************************************************************** + 1-way camellia + **********************************************************************/ +#define roundsm(ab, subkey, cd) \ + movq (key_table + ((subkey) * 2) * 4)(CTX), RT2; \ + \ + xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 0, cd ## 0); \ + xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 0, RT2); \ + xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 0, cd ## 0); \ + xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 0, RT2); \ + \ + xorq RT2, cd ## 0; + +#define fls(l, r, kl, kr) \ + movl (key_table + ((kl) * 2) * 4)(CTX), RT0d; \ + andl l ## 0d, RT0d; \ + roll $1, RT0d; \ + shlq $32, RT0; \ + xorq RT0, l ## 0; \ + movq (key_table + ((kr) * 2) * 4)(CTX), RT1; \ + orq r ## 0, RT1; \ + shrq $32, RT1; \ + xorq RT1, r ## 0; \ + \ + movq (key_table + ((kl) * 2) * 4)(CTX), RT2; \ + orq l ## 0, RT2; \ + shrq $32, RT2; \ + xorq RT2, l ## 0; \ + movl (key_table + ((kr) * 2) * 4)(CTX), RT0d; \ + andl r ## 0d, RT0d; \ + roll $1, RT0d; \ + shlq $32, RT0; \ + xorq RT0, r ## 0; + +#define enc_rounds(i) \ + roundsm(RAB, i + 2, RCD); \ + roundsm(RCD, i + 3, RAB); \ + roundsm(RAB, i + 4, RCD); \ + roundsm(RCD, i + 5, RAB); \ + roundsm(RAB, i + 6, RCD); \ + roundsm(RCD, i + 7, RAB); + +#define enc_fls(i) \ + fls(RAB, RCD, i + 0, i + 1); + +#define enc_inpack() \ + movq (RIO), RAB0; \ + bswapq RAB0; \ + rolq $32, RAB0; \ + movq 4*2(RIO), RCD0; \ + bswapq RCD0; \ + rorq $32, RCD0; \ + xorq key_table(CTX), RAB0; + +#define enc_outunpack(op, max) \ + xorq key_table(CTX, max, 8), RCD0; \ + rorq $32, RCD0; \ + bswapq RCD0; \ + op ## q RCD0, (RIO); \ + rolq $32, RAB0; \ + bswapq RAB0; \ + op ## q RAB0, 4*2(RIO); + +#define dec_rounds(i) \ + roundsm(RAB, i + 7, RCD); \ + roundsm(RCD, i + 6, RAB); \ + roundsm(RAB, i + 5, RCD); \ + roundsm(RCD, i + 4, RAB); \ + roundsm(RAB, i + 3, RCD); \ + roundsm(RCD, i + 2, RAB); + +#define dec_fls(i) \ + fls(RAB, RCD, i + 1, i + 0); + +#define dec_inpack(max) \ + movq (RIO), RAB0; \ + bswapq RAB0; \ + rolq $32, RAB0; \ + movq 4*2(RIO), RCD0; \ + bswapq RCD0; \ + rorq $32, RCD0; \ + xorq key_table(CTX, max, 8), RAB0; + +#define dec_outunpack() \ + xorq key_table(CTX), RCD0; \ + rorq $32, RCD0; \ + bswapq RCD0; \ + movq RCD0, (RIO); \ + rolq $32, RAB0; \ + bswapq RAB0; \ + movq RAB0, 4*2(RIO); + +ENTRY(__camellia_enc_blk) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: bool xor + */ + movq %r12, RR12; + + movq %rcx, RXOR; + movq %rsi, RDST; + movq %rdx, RIO; + + enc_inpack(); + + enc_rounds(0); + enc_fls(8); + enc_rounds(8); + enc_fls(16); + enc_rounds(16); + movl $24, RT1d; /* max */ + + cmpb $16, key_length(CTX); + je .L__enc_done; + + enc_fls(24); + enc_rounds(24); + movl $32, RT1d; /* max */ + +.L__enc_done: + testb RXORbl, RXORbl; + movq RDST, RIO; + + jnz .L__enc_xor; + + enc_outunpack(mov, RT1); + + movq RR12, %r12; + ret; + +.L__enc_xor: + enc_outunpack(xor, RT1); + + movq RR12, %r12; + ret; +ENDPROC(__camellia_enc_blk) + +ENTRY(camellia_dec_blk) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + cmpl $16, key_length(CTX); + movl $32, RT2d; + movl $24, RXORd; + cmovel RXORd, RT2d; /* max */ + + movq %r12, RR12; + movq %rsi, RDST; + movq %rdx, RIO; + + dec_inpack(RT2); + + cmpb $24, RT2bl; + je .L__dec_rounds16; + + dec_rounds(24); + dec_fls(24); + +.L__dec_rounds16: + dec_rounds(16); + dec_fls(16); + dec_rounds(8); + dec_fls(8); + dec_rounds(0); + + movq RDST, RIO; + + dec_outunpack(); + + movq RR12, %r12; + ret; +ENDPROC(camellia_dec_blk) + +/********************************************************************** + 2-way camellia + **********************************************************************/ +#define roundsm2(ab, subkey, cd) \ + movq (key_table + ((subkey) * 2) * 4)(CTX), RT2; \ + xorq RT2, cd ## 1; \ + \ + xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 0, cd ## 0); \ + xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 0, RT2); \ + xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 0, cd ## 0); \ + xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 0, RT2); \ + \ + xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 1, cd ## 1); \ + xorq RT2, cd ## 0; \ + xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 1, cd ## 1); \ + xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 1, cd ## 1); \ + xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 1, cd ## 1); + +#define fls2(l, r, kl, kr) \ + movl (key_table + ((kl) * 2) * 4)(CTX), RT0d; \ + andl l ## 0d, RT0d; \ + roll $1, RT0d; \ + shlq $32, RT0; \ + xorq RT0, l ## 0; \ + movq (key_table + ((kr) * 2) * 4)(CTX), RT1; \ + orq r ## 0, RT1; \ + shrq $32, RT1; \ + xorq RT1, r ## 0; \ + \ + movl (key_table + ((kl) * 2) * 4)(CTX), RT2d; \ + andl l ## 1d, RT2d; \ + roll $1, RT2d; \ + shlq $32, RT2; \ + xorq RT2, l ## 1; \ + movq (key_table + ((kr) * 2) * 4)(CTX), RT0; \ + orq r ## 1, RT0; \ + shrq $32, RT0; \ + xorq RT0, r ## 1; \ + \ + movq (key_table + ((kl) * 2) * 4)(CTX), RT1; \ + orq l ## 0, RT1; \ + shrq $32, RT1; \ + xorq RT1, l ## 0; \ + movl (key_table + ((kr) * 2) * 4)(CTX), RT2d; \ + andl r ## 0d, RT2d; \ + roll $1, RT2d; \ + shlq $32, RT2; \ + xorq RT2, r ## 0; \ + \ + movq (key_table + ((kl) * 2) * 4)(CTX), RT0; \ + orq l ## 1, RT0; \ + shrq $32, RT0; \ + xorq RT0, l ## 1; \ + movl (key_table + ((kr) * 2) * 4)(CTX), RT1d; \ + andl r ## 1d, RT1d; \ + roll $1, RT1d; \ + shlq $32, RT1; \ + xorq RT1, r ## 1; + +#define enc_rounds2(i) \ + roundsm2(RAB, i + 2, RCD); \ + roundsm2(RCD, i + 3, RAB); \ + roundsm2(RAB, i + 4, RCD); \ + roundsm2(RCD, i + 5, RAB); \ + roundsm2(RAB, i + 6, RCD); \ + roundsm2(RCD, i + 7, RAB); + +#define enc_fls2(i) \ + fls2(RAB, RCD, i + 0, i + 1); + +#define enc_inpack2() \ + movq (RIO), RAB0; \ + bswapq RAB0; \ + rorq $32, RAB0; \ + movq 4*2(RIO), RCD0; \ + bswapq RCD0; \ + rolq $32, RCD0; \ + xorq key_table(CTX), RAB0; \ + \ + movq 8*2(RIO), RAB1; \ + bswapq RAB1; \ + rorq $32, RAB1; \ + movq 12*2(RIO), RCD1; \ + bswapq RCD1; \ + rolq $32, RCD1; \ + xorq key_table(CTX), RAB1; + +#define enc_outunpack2(op, max) \ + xorq key_table(CTX, max, 8), RCD0; \ + rolq $32, RCD0; \ + bswapq RCD0; \ + op ## q RCD0, (RIO); \ + rorq $32, RAB0; \ + bswapq RAB0; \ + op ## q RAB0, 4*2(RIO); \ + \ + xorq key_table(CTX, max, 8), RCD1; \ + rolq $32, RCD1; \ + bswapq RCD1; \ + op ## q RCD1, 8*2(RIO); \ + rorq $32, RAB1; \ + bswapq RAB1; \ + op ## q RAB1, 12*2(RIO); + +#define dec_rounds2(i) \ + roundsm2(RAB, i + 7, RCD); \ + roundsm2(RCD, i + 6, RAB); \ + roundsm2(RAB, i + 5, RCD); \ + roundsm2(RCD, i + 4, RAB); \ + roundsm2(RAB, i + 3, RCD); \ + roundsm2(RCD, i + 2, RAB); + +#define dec_fls2(i) \ + fls2(RAB, RCD, i + 1, i + 0); + +#define dec_inpack2(max) \ + movq (RIO), RAB0; \ + bswapq RAB0; \ + rorq $32, RAB0; \ + movq 4*2(RIO), RCD0; \ + bswapq RCD0; \ + rolq $32, RCD0; \ + xorq key_table(CTX, max, 8), RAB0; \ + \ + movq 8*2(RIO), RAB1; \ + bswapq RAB1; \ + rorq $32, RAB1; \ + movq 12*2(RIO), RCD1; \ + bswapq RCD1; \ + rolq $32, RCD1; \ + xorq key_table(CTX, max, 8), RAB1; + +#define dec_outunpack2() \ + xorq key_table(CTX), RCD0; \ + rolq $32, RCD0; \ + bswapq RCD0; \ + movq RCD0, (RIO); \ + rorq $32, RAB0; \ + bswapq RAB0; \ + movq RAB0, 4*2(RIO); \ + \ + xorq key_table(CTX), RCD1; \ + rolq $32, RCD1; \ + bswapq RCD1; \ + movq RCD1, 8*2(RIO); \ + rorq $32, RAB1; \ + bswapq RAB1; \ + movq RAB1, 12*2(RIO); + +ENTRY(__camellia_enc_blk_2way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: bool xor + */ + pushq %rbx; + + movq %r12, RR12; + movq %rcx, RXOR; + movq %rsi, RDST; + movq %rdx, RIO; + + enc_inpack2(); + + enc_rounds2(0); + enc_fls2(8); + enc_rounds2(8); + enc_fls2(16); + enc_rounds2(16); + movl $24, RT2d; /* max */ + + cmpb $16, key_length(CTX); + je .L__enc2_done; + + enc_fls2(24); + enc_rounds2(24); + movl $32, RT2d; /* max */ + +.L__enc2_done: + test RXORbl, RXORbl; + movq RDST, RIO; + jnz .L__enc2_xor; + + enc_outunpack2(mov, RT2); + + movq RR12, %r12; + popq %rbx; + ret; + +.L__enc2_xor: + enc_outunpack2(xor, RT2); + + movq RR12, %r12; + popq %rbx; + ret; +ENDPROC(__camellia_enc_blk_2way) + +ENTRY(camellia_dec_blk_2way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + cmpl $16, key_length(CTX); + movl $32, RT2d; + movl $24, RXORd; + cmovel RXORd, RT2d; /* max */ + + movq %rbx, RXOR; + movq %r12, RR12; + movq %rsi, RDST; + movq %rdx, RIO; + + dec_inpack2(RT2); + + cmpb $24, RT2bl; + je .L__dec2_rounds16; + + dec_rounds2(24); + dec_fls2(24); + +.L__dec2_rounds16: + dec_rounds2(16); + dec_fls2(16); + dec_rounds2(8); + dec_fls2(8); + dec_rounds2(0); + + movq RDST, RIO; + + dec_outunpack2(); + + movq RR12, %r12; + movq RXOR, %rbx; + ret; +ENDPROC(camellia_dec_blk_2way) diff --git a/arch/x86/crypto/camellia_aesni_avx2_glue.c b/arch/x86/crypto/camellia_aesni_avx2_glue.c new file mode 100644 index 000000000..d4992e458 --- /dev/null +++ b/arch/x86/crypto/camellia_aesni_avx2_glue.c @@ -0,0 +1,300 @@ +/* + * Glue Code for x86_64/AVX2/AES-NI assembler optimized version of Camellia + * + * Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <asm/crypto/camellia.h> +#include <asm/crypto/glue_helper.h> +#include <crypto/algapi.h> +#include <crypto/internal/simd.h> +#include <crypto/xts.h> +#include <linux/crypto.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/types.h> + +#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16 +#define CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS 32 + +/* 32-way AVX2/AES-NI parallel cipher functions */ +asmlinkage void camellia_ecb_enc_32way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void camellia_ecb_dec_32way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); + +asmlinkage void camellia_cbc_dec_32way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void camellia_ctr_32way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +asmlinkage void camellia_xts_enc_32way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +asmlinkage void camellia_xts_dec_32way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +static const struct common_glue_ctx camellia_enc = { + .num_funcs = 4, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_32way) } + }, { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) } + }, { + .num_blocks = 2, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) } + } } +}; + +static const struct common_glue_ctx camellia_ctr = { + .num_funcs = 4, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_32way) } + }, { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) } + }, { + .num_blocks = 2, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) } + } } +}; + +static const struct common_glue_ctx camellia_enc_xts = { + .num_funcs = 3, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_32way) } + }, { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) } + } } +}; + +static const struct common_glue_ctx camellia_dec = { + .num_funcs = 4, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_32way) } + }, { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) } + }, { + .num_blocks = 2, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) } + } } +}; + +static const struct common_glue_ctx camellia_dec_cbc = { + .num_funcs = 4, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_32way) } + }, { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) } + }, { + .num_blocks = 2, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) } + } } +}; + +static const struct common_glue_ctx camellia_dec_xts = { + .num_funcs = 3, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_32way) } + }, { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) } + } } +}; + +static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ + return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen, + &tfm->base.crt_flags); +} + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&camellia_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&camellia_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(camellia_enc_blk), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&camellia_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&camellia_ctr, req); +} + +static int xts_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&camellia_enc_xts, req, + XTS_TWEAK_CAST(camellia_enc_blk), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static int xts_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&camellia_dec_xts, req, + XTS_TWEAK_CAST(camellia_enc_blk), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static struct skcipher_alg camellia_algs[] = { + { + .base.cra_name = "__ecb(camellia)", + .base.cra_driver_name = "__ecb-camellia-aesni-avx2", + .base.cra_priority = 500, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAMELLIA_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .setkey = camellia_setkey, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "__cbc(camellia)", + .base.cra_driver_name = "__cbc-camellia-aesni-avx2", + .base.cra_priority = 500, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAMELLIA_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .ivsize = CAMELLIA_BLOCK_SIZE, + .setkey = camellia_setkey, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "__ctr(camellia)", + .base.cra_driver_name = "__ctr-camellia-aesni-avx2", + .base.cra_priority = 500, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .ivsize = CAMELLIA_BLOCK_SIZE, + .chunksize = CAMELLIA_BLOCK_SIZE, + .setkey = camellia_setkey, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, { + .base.cra_name = "__xts(camellia)", + .base.cra_driver_name = "__xts-camellia-aesni-avx2", + .base.cra_priority = 500, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAMELLIA_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct camellia_xts_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = 2 * CAMELLIA_MIN_KEY_SIZE, + .max_keysize = 2 * CAMELLIA_MAX_KEY_SIZE, + .ivsize = CAMELLIA_BLOCK_SIZE, + .setkey = xts_camellia_setkey, + .encrypt = xts_encrypt, + .decrypt = xts_decrypt, + }, +}; + +static struct simd_skcipher_alg *camellia_simd_algs[ARRAY_SIZE(camellia_algs)]; + +static int __init camellia_aesni_init(void) +{ + const char *feature_name; + + if (!boot_cpu_has(X86_FEATURE_AVX) || + !boot_cpu_has(X86_FEATURE_AVX2) || + !boot_cpu_has(X86_FEATURE_AES) || + !boot_cpu_has(X86_FEATURE_OSXSAVE)) { + pr_info("AVX2 or AES-NI instructions are not detected.\n"); + return -ENODEV; + } + + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, + &feature_name)) { + pr_info("CPU feature '%s' is not supported.\n", feature_name); + return -ENODEV; + } + + return simd_register_skciphers_compat(camellia_algs, + ARRAY_SIZE(camellia_algs), + camellia_simd_algs); +} + +static void __exit camellia_aesni_fini(void) +{ + simd_unregister_skciphers(camellia_algs, ARRAY_SIZE(camellia_algs), + camellia_simd_algs); +} + +module_init(camellia_aesni_init); +module_exit(camellia_aesni_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX2 optimized"); +MODULE_ALIAS_CRYPTO("camellia"); +MODULE_ALIAS_CRYPTO("camellia-asm"); diff --git a/arch/x86/crypto/camellia_aesni_avx_glue.c b/arch/x86/crypto/camellia_aesni_avx_glue.c new file mode 100644 index 000000000..d09f65214 --- /dev/null +++ b/arch/x86/crypto/camellia_aesni_avx_glue.c @@ -0,0 +1,325 @@ +/* + * Glue Code for x86_64/AVX/AES-NI assembler optimized version of Camellia + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <asm/crypto/camellia.h> +#include <asm/crypto/glue_helper.h> +#include <crypto/algapi.h> +#include <crypto/internal/simd.h> +#include <crypto/xts.h> +#include <linux/crypto.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/types.h> + +#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16 + +/* 16-way parallel cipher functions (avx/aes-ni) */ +asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way); + +asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way); + +asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way); + +asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(camellia_ctr_16way); + +asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(camellia_xts_enc_16way); + +asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(camellia_xts_dec_16way); + +void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(camellia_enc_blk)); +} +EXPORT_SYMBOL_GPL(camellia_xts_enc); + +void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(camellia_dec_blk)); +} +EXPORT_SYMBOL_GPL(camellia_xts_dec); + +static const struct common_glue_ctx camellia_enc = { + .num_funcs = 3, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) } + }, { + .num_blocks = 2, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) } + } } +}; + +static const struct common_glue_ctx camellia_ctr = { + .num_funcs = 3, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) } + }, { + .num_blocks = 2, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) } + } } +}; + +static const struct common_glue_ctx camellia_enc_xts = { + .num_funcs = 2, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) } + } } +}; + +static const struct common_glue_ctx camellia_dec = { + .num_funcs = 3, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) } + }, { + .num_blocks = 2, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) } + } } +}; + +static const struct common_glue_ctx camellia_dec_cbc = { + .num_funcs = 3, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) } + }, { + .num_blocks = 2, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) } + } } +}; + +static const struct common_glue_ctx camellia_dec_xts = { + .num_funcs = 2, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) } + } } +}; + +static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ + return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen, + &tfm->base.crt_flags); +} + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&camellia_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&camellia_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(camellia_enc_blk), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&camellia_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&camellia_ctr, req); +} + +int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ + struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + u32 *flags = &tfm->base.crt_flags; + int err; + + err = xts_verify_key(tfm, key, keylen); + if (err) + return err; + + /* first half of xts-key is for crypt */ + err = __camellia_setkey(&ctx->crypt_ctx, key, keylen / 2, flags); + if (err) + return err; + + /* second half of xts-key is for tweak */ + return __camellia_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2, + flags); +} +EXPORT_SYMBOL_GPL(xts_camellia_setkey); + +static int xts_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&camellia_enc_xts, req, + XTS_TWEAK_CAST(camellia_enc_blk), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static int xts_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&camellia_dec_xts, req, + XTS_TWEAK_CAST(camellia_enc_blk), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static struct skcipher_alg camellia_algs[] = { + { + .base.cra_name = "__ecb(camellia)", + .base.cra_driver_name = "__ecb-camellia-aesni", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAMELLIA_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .setkey = camellia_setkey, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "__cbc(camellia)", + .base.cra_driver_name = "__cbc-camellia-aesni", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAMELLIA_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .ivsize = CAMELLIA_BLOCK_SIZE, + .setkey = camellia_setkey, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "__ctr(camellia)", + .base.cra_driver_name = "__ctr-camellia-aesni", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .ivsize = CAMELLIA_BLOCK_SIZE, + .chunksize = CAMELLIA_BLOCK_SIZE, + .setkey = camellia_setkey, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, { + .base.cra_name = "__xts(camellia)", + .base.cra_driver_name = "__xts-camellia-aesni", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAMELLIA_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct camellia_xts_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = 2 * CAMELLIA_MIN_KEY_SIZE, + .max_keysize = 2 * CAMELLIA_MAX_KEY_SIZE, + .ivsize = CAMELLIA_BLOCK_SIZE, + .setkey = xts_camellia_setkey, + .encrypt = xts_encrypt, + .decrypt = xts_decrypt, + }, +}; + +static struct simd_skcipher_alg *camellia_simd_algs[ARRAY_SIZE(camellia_algs)]; + +static int __init camellia_aesni_init(void) +{ + const char *feature_name; + + if (!boot_cpu_has(X86_FEATURE_AVX) || + !boot_cpu_has(X86_FEATURE_AES) || + !boot_cpu_has(X86_FEATURE_OSXSAVE)) { + pr_info("AVX or AES-NI instructions are not detected.\n"); + return -ENODEV; + } + + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, + &feature_name)) { + pr_info("CPU feature '%s' is not supported.\n", feature_name); + return -ENODEV; + } + + return simd_register_skciphers_compat(camellia_algs, + ARRAY_SIZE(camellia_algs), + camellia_simd_algs); +} + +static void __exit camellia_aesni_fini(void) +{ + simd_unregister_skciphers(camellia_algs, ARRAY_SIZE(camellia_algs), + camellia_simd_algs); +} + +module_init(camellia_aesni_init); +module_exit(camellia_aesni_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX optimized"); +MODULE_ALIAS_CRYPTO("camellia"); +MODULE_ALIAS_CRYPTO("camellia-asm"); diff --git a/arch/x86/crypto/camellia_glue.c b/arch/x86/crypto/camellia_glue.c new file mode 100644 index 000000000..dcd5e0f71 --- /dev/null +++ b/arch/x86/crypto/camellia_glue.c @@ -0,0 +1,1527 @@ +/* + * Glue Code for assembler optimized version of Camellia + * + * Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * Camellia parts based on code by: + * Copyright (C) 2006 NTT (Nippon Telegraph and Telephone Corporation) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <asm/unaligned.h> +#include <linux/crypto.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> +#include <crypto/algapi.h> +#include <asm/crypto/camellia.h> +#include <asm/crypto/glue_helper.h> + +/* regular block cipher functions */ +asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +EXPORT_SYMBOL_GPL(__camellia_enc_blk); +asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(camellia_dec_blk); + +/* 2-way parallel cipher functions */ +asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, bool xor); +EXPORT_SYMBOL_GPL(__camellia_enc_blk_2way); +asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(camellia_dec_blk_2way); + +static void camellia_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + camellia_enc_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static void camellia_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + camellia_dec_blk(crypto_tfm_ctx(tfm), dst, src); +} + +/* camellia sboxes */ +__visible const u64 camellia_sp10011110[256] = { + 0x7000007070707000ULL, 0x8200008282828200ULL, 0x2c00002c2c2c2c00ULL, + 0xec0000ecececec00ULL, 0xb30000b3b3b3b300ULL, 0x2700002727272700ULL, + 0xc00000c0c0c0c000ULL, 0xe50000e5e5e5e500ULL, 0xe40000e4e4e4e400ULL, + 0x8500008585858500ULL, 0x5700005757575700ULL, 0x3500003535353500ULL, + 0xea0000eaeaeaea00ULL, 0x0c00000c0c0c0c00ULL, 0xae0000aeaeaeae00ULL, + 0x4100004141414100ULL, 0x2300002323232300ULL, 0xef0000efefefef00ULL, + 0x6b00006b6b6b6b00ULL, 0x9300009393939300ULL, 0x4500004545454500ULL, + 0x1900001919191900ULL, 0xa50000a5a5a5a500ULL, 0x2100002121212100ULL, + 0xed0000edededed00ULL, 0x0e00000e0e0e0e00ULL, 0x4f00004f4f4f4f00ULL, + 0x4e00004e4e4e4e00ULL, 0x1d00001d1d1d1d00ULL, 0x6500006565656500ULL, + 0x9200009292929200ULL, 0xbd0000bdbdbdbd00ULL, 0x8600008686868600ULL, + 0xb80000b8b8b8b800ULL, 0xaf0000afafafaf00ULL, 0x8f00008f8f8f8f00ULL, + 0x7c00007c7c7c7c00ULL, 0xeb0000ebebebeb00ULL, 0x1f00001f1f1f1f00ULL, + 0xce0000cececece00ULL, 0x3e00003e3e3e3e00ULL, 0x3000003030303000ULL, + 0xdc0000dcdcdcdc00ULL, 0x5f00005f5f5f5f00ULL, 0x5e00005e5e5e5e00ULL, + 0xc50000c5c5c5c500ULL, 0x0b00000b0b0b0b00ULL, 0x1a00001a1a1a1a00ULL, + 0xa60000a6a6a6a600ULL, 0xe10000e1e1e1e100ULL, 0x3900003939393900ULL, + 0xca0000cacacaca00ULL, 0xd50000d5d5d5d500ULL, 0x4700004747474700ULL, + 0x5d00005d5d5d5d00ULL, 0x3d00003d3d3d3d00ULL, 0xd90000d9d9d9d900ULL, + 0x0100000101010100ULL, 0x5a00005a5a5a5a00ULL, 0xd60000d6d6d6d600ULL, + 0x5100005151515100ULL, 0x5600005656565600ULL, 0x6c00006c6c6c6c00ULL, + 0x4d00004d4d4d4d00ULL, 0x8b00008b8b8b8b00ULL, 0x0d00000d0d0d0d00ULL, + 0x9a00009a9a9a9a00ULL, 0x6600006666666600ULL, 0xfb0000fbfbfbfb00ULL, + 0xcc0000cccccccc00ULL, 0xb00000b0b0b0b000ULL, 0x2d00002d2d2d2d00ULL, + 0x7400007474747400ULL, 0x1200001212121200ULL, 0x2b00002b2b2b2b00ULL, + 0x2000002020202000ULL, 0xf00000f0f0f0f000ULL, 0xb10000b1b1b1b100ULL, + 0x8400008484848400ULL, 0x9900009999999900ULL, 0xdf0000dfdfdfdf00ULL, + 0x4c00004c4c4c4c00ULL, 0xcb0000cbcbcbcb00ULL, 0xc20000c2c2c2c200ULL, + 0x3400003434343400ULL, 0x7e00007e7e7e7e00ULL, 0x7600007676767600ULL, + 0x0500000505050500ULL, 0x6d00006d6d6d6d00ULL, 0xb70000b7b7b7b700ULL, + 0xa90000a9a9a9a900ULL, 0x3100003131313100ULL, 0xd10000d1d1d1d100ULL, + 0x1700001717171700ULL, 0x0400000404040400ULL, 0xd70000d7d7d7d700ULL, + 0x1400001414141400ULL, 0x5800005858585800ULL, 0x3a00003a3a3a3a00ULL, + 0x6100006161616100ULL, 0xde0000dededede00ULL, 0x1b00001b1b1b1b00ULL, + 0x1100001111111100ULL, 0x1c00001c1c1c1c00ULL, 0x3200003232323200ULL, + 0x0f00000f0f0f0f00ULL, 0x9c00009c9c9c9c00ULL, 0x1600001616161600ULL, + 0x5300005353535300ULL, 0x1800001818181800ULL, 0xf20000f2f2f2f200ULL, + 0x2200002222222200ULL, 0xfe0000fefefefe00ULL, 0x4400004444444400ULL, + 0xcf0000cfcfcfcf00ULL, 0xb20000b2b2b2b200ULL, 0xc30000c3c3c3c300ULL, + 0xb50000b5b5b5b500ULL, 0x7a00007a7a7a7a00ULL, 0x9100009191919100ULL, + 0x2400002424242400ULL, 0x0800000808080800ULL, 0xe80000e8e8e8e800ULL, + 0xa80000a8a8a8a800ULL, 0x6000006060606000ULL, 0xfc0000fcfcfcfc00ULL, + 0x6900006969696900ULL, 0x5000005050505000ULL, 0xaa0000aaaaaaaa00ULL, + 0xd00000d0d0d0d000ULL, 0xa00000a0a0a0a000ULL, 0x7d00007d7d7d7d00ULL, + 0xa10000a1a1a1a100ULL, 0x8900008989898900ULL, 0x6200006262626200ULL, + 0x9700009797979700ULL, 0x5400005454545400ULL, 0x5b00005b5b5b5b00ULL, + 0x1e00001e1e1e1e00ULL, 0x9500009595959500ULL, 0xe00000e0e0e0e000ULL, + 0xff0000ffffffff00ULL, 0x6400006464646400ULL, 0xd20000d2d2d2d200ULL, + 0x1000001010101000ULL, 0xc40000c4c4c4c400ULL, 0x0000000000000000ULL, + 0x4800004848484800ULL, 0xa30000a3a3a3a300ULL, 0xf70000f7f7f7f700ULL, + 0x7500007575757500ULL, 0xdb0000dbdbdbdb00ULL, 0x8a00008a8a8a8a00ULL, + 0x0300000303030300ULL, 0xe60000e6e6e6e600ULL, 0xda0000dadadada00ULL, + 0x0900000909090900ULL, 0x3f00003f3f3f3f00ULL, 0xdd0000dddddddd00ULL, + 0x9400009494949400ULL, 0x8700008787878700ULL, 0x5c00005c5c5c5c00ULL, + 0x8300008383838300ULL, 0x0200000202020200ULL, 0xcd0000cdcdcdcd00ULL, + 0x4a00004a4a4a4a00ULL, 0x9000009090909000ULL, 0x3300003333333300ULL, + 0x7300007373737300ULL, 0x6700006767676700ULL, 0xf60000f6f6f6f600ULL, + 0xf30000f3f3f3f300ULL, 0x9d00009d9d9d9d00ULL, 0x7f00007f7f7f7f00ULL, + 0xbf0000bfbfbfbf00ULL, 0xe20000e2e2e2e200ULL, 0x5200005252525200ULL, + 0x9b00009b9b9b9b00ULL, 0xd80000d8d8d8d800ULL, 0x2600002626262600ULL, + 0xc80000c8c8c8c800ULL, 0x3700003737373700ULL, 0xc60000c6c6c6c600ULL, + 0x3b00003b3b3b3b00ULL, 0x8100008181818100ULL, 0x9600009696969600ULL, + 0x6f00006f6f6f6f00ULL, 0x4b00004b4b4b4b00ULL, 0x1300001313131300ULL, + 0xbe0000bebebebe00ULL, 0x6300006363636300ULL, 0x2e00002e2e2e2e00ULL, + 0xe90000e9e9e9e900ULL, 0x7900007979797900ULL, 0xa70000a7a7a7a700ULL, + 0x8c00008c8c8c8c00ULL, 0x9f00009f9f9f9f00ULL, 0x6e00006e6e6e6e00ULL, + 0xbc0000bcbcbcbc00ULL, 0x8e00008e8e8e8e00ULL, 0x2900002929292900ULL, + 0xf50000f5f5f5f500ULL, 0xf90000f9f9f9f900ULL, 0xb60000b6b6b6b600ULL, + 0x2f00002f2f2f2f00ULL, 0xfd0000fdfdfdfd00ULL, 0xb40000b4b4b4b400ULL, + 0x5900005959595900ULL, 0x7800007878787800ULL, 0x9800009898989800ULL, + 0x0600000606060600ULL, 0x6a00006a6a6a6a00ULL, 0xe70000e7e7e7e700ULL, + 0x4600004646464600ULL, 0x7100007171717100ULL, 0xba0000babababa00ULL, + 0xd40000d4d4d4d400ULL, 0x2500002525252500ULL, 0xab0000abababab00ULL, + 0x4200004242424200ULL, 0x8800008888888800ULL, 0xa20000a2a2a2a200ULL, + 0x8d00008d8d8d8d00ULL, 0xfa0000fafafafa00ULL, 0x7200007272727200ULL, + 0x0700000707070700ULL, 0xb90000b9b9b9b900ULL, 0x5500005555555500ULL, + 0xf80000f8f8f8f800ULL, 0xee0000eeeeeeee00ULL, 0xac0000acacacac00ULL, + 0x0a00000a0a0a0a00ULL, 0x3600003636363600ULL, 0x4900004949494900ULL, + 0x2a00002a2a2a2a00ULL, 0x6800006868686800ULL, 0x3c00003c3c3c3c00ULL, + 0x3800003838383800ULL, 0xf10000f1f1f1f100ULL, 0xa40000a4a4a4a400ULL, + 0x4000004040404000ULL, 0x2800002828282800ULL, 0xd30000d3d3d3d300ULL, + 0x7b00007b7b7b7b00ULL, 0xbb0000bbbbbbbb00ULL, 0xc90000c9c9c9c900ULL, + 0x4300004343434300ULL, 0xc10000c1c1c1c100ULL, 0x1500001515151500ULL, + 0xe30000e3e3e3e300ULL, 0xad0000adadadad00ULL, 0xf40000f4f4f4f400ULL, + 0x7700007777777700ULL, 0xc70000c7c7c7c700ULL, 0x8000008080808000ULL, + 0x9e00009e9e9e9e00ULL, +}; + +__visible const u64 camellia_sp22000222[256] = { + 0xe0e0000000e0e0e0ULL, 0x0505000000050505ULL, 0x5858000000585858ULL, + 0xd9d9000000d9d9d9ULL, 0x6767000000676767ULL, 0x4e4e0000004e4e4eULL, + 0x8181000000818181ULL, 0xcbcb000000cbcbcbULL, 0xc9c9000000c9c9c9ULL, + 0x0b0b0000000b0b0bULL, 0xaeae000000aeaeaeULL, 0x6a6a0000006a6a6aULL, + 0xd5d5000000d5d5d5ULL, 0x1818000000181818ULL, 0x5d5d0000005d5d5dULL, + 0x8282000000828282ULL, 0x4646000000464646ULL, 0xdfdf000000dfdfdfULL, + 0xd6d6000000d6d6d6ULL, 0x2727000000272727ULL, 0x8a8a0000008a8a8aULL, + 0x3232000000323232ULL, 0x4b4b0000004b4b4bULL, 0x4242000000424242ULL, + 0xdbdb000000dbdbdbULL, 0x1c1c0000001c1c1cULL, 0x9e9e0000009e9e9eULL, + 0x9c9c0000009c9c9cULL, 0x3a3a0000003a3a3aULL, 0xcaca000000cacacaULL, + 0x2525000000252525ULL, 0x7b7b0000007b7b7bULL, 0x0d0d0000000d0d0dULL, + 0x7171000000717171ULL, 0x5f5f0000005f5f5fULL, 0x1f1f0000001f1f1fULL, + 0xf8f8000000f8f8f8ULL, 0xd7d7000000d7d7d7ULL, 0x3e3e0000003e3e3eULL, + 0x9d9d0000009d9d9dULL, 0x7c7c0000007c7c7cULL, 0x6060000000606060ULL, + 0xb9b9000000b9b9b9ULL, 0xbebe000000bebebeULL, 0xbcbc000000bcbcbcULL, + 0x8b8b0000008b8b8bULL, 0x1616000000161616ULL, 0x3434000000343434ULL, + 0x4d4d0000004d4d4dULL, 0xc3c3000000c3c3c3ULL, 0x7272000000727272ULL, + 0x9595000000959595ULL, 0xabab000000abababULL, 0x8e8e0000008e8e8eULL, + 0xbaba000000bababaULL, 0x7a7a0000007a7a7aULL, 0xb3b3000000b3b3b3ULL, + 0x0202000000020202ULL, 0xb4b4000000b4b4b4ULL, 0xadad000000adadadULL, + 0xa2a2000000a2a2a2ULL, 0xacac000000acacacULL, 0xd8d8000000d8d8d8ULL, + 0x9a9a0000009a9a9aULL, 0x1717000000171717ULL, 0x1a1a0000001a1a1aULL, + 0x3535000000353535ULL, 0xcccc000000ccccccULL, 0xf7f7000000f7f7f7ULL, + 0x9999000000999999ULL, 0x6161000000616161ULL, 0x5a5a0000005a5a5aULL, + 0xe8e8000000e8e8e8ULL, 0x2424000000242424ULL, 0x5656000000565656ULL, + 0x4040000000404040ULL, 0xe1e1000000e1e1e1ULL, 0x6363000000636363ULL, + 0x0909000000090909ULL, 0x3333000000333333ULL, 0xbfbf000000bfbfbfULL, + 0x9898000000989898ULL, 0x9797000000979797ULL, 0x8585000000858585ULL, + 0x6868000000686868ULL, 0xfcfc000000fcfcfcULL, 0xecec000000ecececULL, + 0x0a0a0000000a0a0aULL, 0xdada000000dadadaULL, 0x6f6f0000006f6f6fULL, + 0x5353000000535353ULL, 0x6262000000626262ULL, 0xa3a3000000a3a3a3ULL, + 0x2e2e0000002e2e2eULL, 0x0808000000080808ULL, 0xafaf000000afafafULL, + 0x2828000000282828ULL, 0xb0b0000000b0b0b0ULL, 0x7474000000747474ULL, + 0xc2c2000000c2c2c2ULL, 0xbdbd000000bdbdbdULL, 0x3636000000363636ULL, + 0x2222000000222222ULL, 0x3838000000383838ULL, 0x6464000000646464ULL, + 0x1e1e0000001e1e1eULL, 0x3939000000393939ULL, 0x2c2c0000002c2c2cULL, + 0xa6a6000000a6a6a6ULL, 0x3030000000303030ULL, 0xe5e5000000e5e5e5ULL, + 0x4444000000444444ULL, 0xfdfd000000fdfdfdULL, 0x8888000000888888ULL, + 0x9f9f0000009f9f9fULL, 0x6565000000656565ULL, 0x8787000000878787ULL, + 0x6b6b0000006b6b6bULL, 0xf4f4000000f4f4f4ULL, 0x2323000000232323ULL, + 0x4848000000484848ULL, 0x1010000000101010ULL, 0xd1d1000000d1d1d1ULL, + 0x5151000000515151ULL, 0xc0c0000000c0c0c0ULL, 0xf9f9000000f9f9f9ULL, + 0xd2d2000000d2d2d2ULL, 0xa0a0000000a0a0a0ULL, 0x5555000000555555ULL, + 0xa1a1000000a1a1a1ULL, 0x4141000000414141ULL, 0xfafa000000fafafaULL, + 0x4343000000434343ULL, 0x1313000000131313ULL, 0xc4c4000000c4c4c4ULL, + 0x2f2f0000002f2f2fULL, 0xa8a8000000a8a8a8ULL, 0xb6b6000000b6b6b6ULL, + 0x3c3c0000003c3c3cULL, 0x2b2b0000002b2b2bULL, 0xc1c1000000c1c1c1ULL, + 0xffff000000ffffffULL, 0xc8c8000000c8c8c8ULL, 0xa5a5000000a5a5a5ULL, + 0x2020000000202020ULL, 0x8989000000898989ULL, 0x0000000000000000ULL, + 0x9090000000909090ULL, 0x4747000000474747ULL, 0xefef000000efefefULL, + 0xeaea000000eaeaeaULL, 0xb7b7000000b7b7b7ULL, 0x1515000000151515ULL, + 0x0606000000060606ULL, 0xcdcd000000cdcdcdULL, 0xb5b5000000b5b5b5ULL, + 0x1212000000121212ULL, 0x7e7e0000007e7e7eULL, 0xbbbb000000bbbbbbULL, + 0x2929000000292929ULL, 0x0f0f0000000f0f0fULL, 0xb8b8000000b8b8b8ULL, + 0x0707000000070707ULL, 0x0404000000040404ULL, 0x9b9b0000009b9b9bULL, + 0x9494000000949494ULL, 0x2121000000212121ULL, 0x6666000000666666ULL, + 0xe6e6000000e6e6e6ULL, 0xcece000000cececeULL, 0xeded000000edededULL, + 0xe7e7000000e7e7e7ULL, 0x3b3b0000003b3b3bULL, 0xfefe000000fefefeULL, + 0x7f7f0000007f7f7fULL, 0xc5c5000000c5c5c5ULL, 0xa4a4000000a4a4a4ULL, + 0x3737000000373737ULL, 0xb1b1000000b1b1b1ULL, 0x4c4c0000004c4c4cULL, + 0x9191000000919191ULL, 0x6e6e0000006e6e6eULL, 0x8d8d0000008d8d8dULL, + 0x7676000000767676ULL, 0x0303000000030303ULL, 0x2d2d0000002d2d2dULL, + 0xdede000000dededeULL, 0x9696000000969696ULL, 0x2626000000262626ULL, + 0x7d7d0000007d7d7dULL, 0xc6c6000000c6c6c6ULL, 0x5c5c0000005c5c5cULL, + 0xd3d3000000d3d3d3ULL, 0xf2f2000000f2f2f2ULL, 0x4f4f0000004f4f4fULL, + 0x1919000000191919ULL, 0x3f3f0000003f3f3fULL, 0xdcdc000000dcdcdcULL, + 0x7979000000797979ULL, 0x1d1d0000001d1d1dULL, 0x5252000000525252ULL, + 0xebeb000000ebebebULL, 0xf3f3000000f3f3f3ULL, 0x6d6d0000006d6d6dULL, + 0x5e5e0000005e5e5eULL, 0xfbfb000000fbfbfbULL, 0x6969000000696969ULL, + 0xb2b2000000b2b2b2ULL, 0xf0f0000000f0f0f0ULL, 0x3131000000313131ULL, + 0x0c0c0000000c0c0cULL, 0xd4d4000000d4d4d4ULL, 0xcfcf000000cfcfcfULL, + 0x8c8c0000008c8c8cULL, 0xe2e2000000e2e2e2ULL, 0x7575000000757575ULL, + 0xa9a9000000a9a9a9ULL, 0x4a4a0000004a4a4aULL, 0x5757000000575757ULL, + 0x8484000000848484ULL, 0x1111000000111111ULL, 0x4545000000454545ULL, + 0x1b1b0000001b1b1bULL, 0xf5f5000000f5f5f5ULL, 0xe4e4000000e4e4e4ULL, + 0x0e0e0000000e0e0eULL, 0x7373000000737373ULL, 0xaaaa000000aaaaaaULL, + 0xf1f1000000f1f1f1ULL, 0xdddd000000ddddddULL, 0x5959000000595959ULL, + 0x1414000000141414ULL, 0x6c6c0000006c6c6cULL, 0x9292000000929292ULL, + 0x5454000000545454ULL, 0xd0d0000000d0d0d0ULL, 0x7878000000787878ULL, + 0x7070000000707070ULL, 0xe3e3000000e3e3e3ULL, 0x4949000000494949ULL, + 0x8080000000808080ULL, 0x5050000000505050ULL, 0xa7a7000000a7a7a7ULL, + 0xf6f6000000f6f6f6ULL, 0x7777000000777777ULL, 0x9393000000939393ULL, + 0x8686000000868686ULL, 0x8383000000838383ULL, 0x2a2a0000002a2a2aULL, + 0xc7c7000000c7c7c7ULL, 0x5b5b0000005b5b5bULL, 0xe9e9000000e9e9e9ULL, + 0xeeee000000eeeeeeULL, 0x8f8f0000008f8f8fULL, 0x0101000000010101ULL, + 0x3d3d0000003d3d3dULL, +}; + +__visible const u64 camellia_sp03303033[256] = { + 0x0038380038003838ULL, 0x0041410041004141ULL, 0x0016160016001616ULL, + 0x0076760076007676ULL, 0x00d9d900d900d9d9ULL, 0x0093930093009393ULL, + 0x0060600060006060ULL, 0x00f2f200f200f2f2ULL, 0x0072720072007272ULL, + 0x00c2c200c200c2c2ULL, 0x00abab00ab00ababULL, 0x009a9a009a009a9aULL, + 0x0075750075007575ULL, 0x0006060006000606ULL, 0x0057570057005757ULL, + 0x00a0a000a000a0a0ULL, 0x0091910091009191ULL, 0x00f7f700f700f7f7ULL, + 0x00b5b500b500b5b5ULL, 0x00c9c900c900c9c9ULL, 0x00a2a200a200a2a2ULL, + 0x008c8c008c008c8cULL, 0x00d2d200d200d2d2ULL, 0x0090900090009090ULL, + 0x00f6f600f600f6f6ULL, 0x0007070007000707ULL, 0x00a7a700a700a7a7ULL, + 0x0027270027002727ULL, 0x008e8e008e008e8eULL, 0x00b2b200b200b2b2ULL, + 0x0049490049004949ULL, 0x00dede00de00dedeULL, 0x0043430043004343ULL, + 0x005c5c005c005c5cULL, 0x00d7d700d700d7d7ULL, 0x00c7c700c700c7c7ULL, + 0x003e3e003e003e3eULL, 0x00f5f500f500f5f5ULL, 0x008f8f008f008f8fULL, + 0x0067670067006767ULL, 0x001f1f001f001f1fULL, 0x0018180018001818ULL, + 0x006e6e006e006e6eULL, 0x00afaf00af00afafULL, 0x002f2f002f002f2fULL, + 0x00e2e200e200e2e2ULL, 0x0085850085008585ULL, 0x000d0d000d000d0dULL, + 0x0053530053005353ULL, 0x00f0f000f000f0f0ULL, 0x009c9c009c009c9cULL, + 0x0065650065006565ULL, 0x00eaea00ea00eaeaULL, 0x00a3a300a300a3a3ULL, + 0x00aeae00ae00aeaeULL, 0x009e9e009e009e9eULL, 0x00ecec00ec00ececULL, + 0x0080800080008080ULL, 0x002d2d002d002d2dULL, 0x006b6b006b006b6bULL, + 0x00a8a800a800a8a8ULL, 0x002b2b002b002b2bULL, 0x0036360036003636ULL, + 0x00a6a600a600a6a6ULL, 0x00c5c500c500c5c5ULL, 0x0086860086008686ULL, + 0x004d4d004d004d4dULL, 0x0033330033003333ULL, 0x00fdfd00fd00fdfdULL, + 0x0066660066006666ULL, 0x0058580058005858ULL, 0x0096960096009696ULL, + 0x003a3a003a003a3aULL, 0x0009090009000909ULL, 0x0095950095009595ULL, + 0x0010100010001010ULL, 0x0078780078007878ULL, 0x00d8d800d800d8d8ULL, + 0x0042420042004242ULL, 0x00cccc00cc00ccccULL, 0x00efef00ef00efefULL, + 0x0026260026002626ULL, 0x00e5e500e500e5e5ULL, 0x0061610061006161ULL, + 0x001a1a001a001a1aULL, 0x003f3f003f003f3fULL, 0x003b3b003b003b3bULL, + 0x0082820082008282ULL, 0x00b6b600b600b6b6ULL, 0x00dbdb00db00dbdbULL, + 0x00d4d400d400d4d4ULL, 0x0098980098009898ULL, 0x00e8e800e800e8e8ULL, + 0x008b8b008b008b8bULL, 0x0002020002000202ULL, 0x00ebeb00eb00ebebULL, + 0x000a0a000a000a0aULL, 0x002c2c002c002c2cULL, 0x001d1d001d001d1dULL, + 0x00b0b000b000b0b0ULL, 0x006f6f006f006f6fULL, 0x008d8d008d008d8dULL, + 0x0088880088008888ULL, 0x000e0e000e000e0eULL, 0x0019190019001919ULL, + 0x0087870087008787ULL, 0x004e4e004e004e4eULL, 0x000b0b000b000b0bULL, + 0x00a9a900a900a9a9ULL, 0x000c0c000c000c0cULL, 0x0079790079007979ULL, + 0x0011110011001111ULL, 0x007f7f007f007f7fULL, 0x0022220022002222ULL, + 0x00e7e700e700e7e7ULL, 0x0059590059005959ULL, 0x00e1e100e100e1e1ULL, + 0x00dada00da00dadaULL, 0x003d3d003d003d3dULL, 0x00c8c800c800c8c8ULL, + 0x0012120012001212ULL, 0x0004040004000404ULL, 0x0074740074007474ULL, + 0x0054540054005454ULL, 0x0030300030003030ULL, 0x007e7e007e007e7eULL, + 0x00b4b400b400b4b4ULL, 0x0028280028002828ULL, 0x0055550055005555ULL, + 0x0068680068006868ULL, 0x0050500050005050ULL, 0x00bebe00be00bebeULL, + 0x00d0d000d000d0d0ULL, 0x00c4c400c400c4c4ULL, 0x0031310031003131ULL, + 0x00cbcb00cb00cbcbULL, 0x002a2a002a002a2aULL, 0x00adad00ad00adadULL, + 0x000f0f000f000f0fULL, 0x00caca00ca00cacaULL, 0x0070700070007070ULL, + 0x00ffff00ff00ffffULL, 0x0032320032003232ULL, 0x0069690069006969ULL, + 0x0008080008000808ULL, 0x0062620062006262ULL, 0x0000000000000000ULL, + 0x0024240024002424ULL, 0x00d1d100d100d1d1ULL, 0x00fbfb00fb00fbfbULL, + 0x00baba00ba00babaULL, 0x00eded00ed00ededULL, 0x0045450045004545ULL, + 0x0081810081008181ULL, 0x0073730073007373ULL, 0x006d6d006d006d6dULL, + 0x0084840084008484ULL, 0x009f9f009f009f9fULL, 0x00eeee00ee00eeeeULL, + 0x004a4a004a004a4aULL, 0x00c3c300c300c3c3ULL, 0x002e2e002e002e2eULL, + 0x00c1c100c100c1c1ULL, 0x0001010001000101ULL, 0x00e6e600e600e6e6ULL, + 0x0025250025002525ULL, 0x0048480048004848ULL, 0x0099990099009999ULL, + 0x00b9b900b900b9b9ULL, 0x00b3b300b300b3b3ULL, 0x007b7b007b007b7bULL, + 0x00f9f900f900f9f9ULL, 0x00cece00ce00ceceULL, 0x00bfbf00bf00bfbfULL, + 0x00dfdf00df00dfdfULL, 0x0071710071007171ULL, 0x0029290029002929ULL, + 0x00cdcd00cd00cdcdULL, 0x006c6c006c006c6cULL, 0x0013130013001313ULL, + 0x0064640064006464ULL, 0x009b9b009b009b9bULL, 0x0063630063006363ULL, + 0x009d9d009d009d9dULL, 0x00c0c000c000c0c0ULL, 0x004b4b004b004b4bULL, + 0x00b7b700b700b7b7ULL, 0x00a5a500a500a5a5ULL, 0x0089890089008989ULL, + 0x005f5f005f005f5fULL, 0x00b1b100b100b1b1ULL, 0x0017170017001717ULL, + 0x00f4f400f400f4f4ULL, 0x00bcbc00bc00bcbcULL, 0x00d3d300d300d3d3ULL, + 0x0046460046004646ULL, 0x00cfcf00cf00cfcfULL, 0x0037370037003737ULL, + 0x005e5e005e005e5eULL, 0x0047470047004747ULL, 0x0094940094009494ULL, + 0x00fafa00fa00fafaULL, 0x00fcfc00fc00fcfcULL, 0x005b5b005b005b5bULL, + 0x0097970097009797ULL, 0x00fefe00fe00fefeULL, 0x005a5a005a005a5aULL, + 0x00acac00ac00acacULL, 0x003c3c003c003c3cULL, 0x004c4c004c004c4cULL, + 0x0003030003000303ULL, 0x0035350035003535ULL, 0x00f3f300f300f3f3ULL, + 0x0023230023002323ULL, 0x00b8b800b800b8b8ULL, 0x005d5d005d005d5dULL, + 0x006a6a006a006a6aULL, 0x0092920092009292ULL, 0x00d5d500d500d5d5ULL, + 0x0021210021002121ULL, 0x0044440044004444ULL, 0x0051510051005151ULL, + 0x00c6c600c600c6c6ULL, 0x007d7d007d007d7dULL, 0x0039390039003939ULL, + 0x0083830083008383ULL, 0x00dcdc00dc00dcdcULL, 0x00aaaa00aa00aaaaULL, + 0x007c7c007c007c7cULL, 0x0077770077007777ULL, 0x0056560056005656ULL, + 0x0005050005000505ULL, 0x001b1b001b001b1bULL, 0x00a4a400a400a4a4ULL, + 0x0015150015001515ULL, 0x0034340034003434ULL, 0x001e1e001e001e1eULL, + 0x001c1c001c001c1cULL, 0x00f8f800f800f8f8ULL, 0x0052520052005252ULL, + 0x0020200020002020ULL, 0x0014140014001414ULL, 0x00e9e900e900e9e9ULL, + 0x00bdbd00bd00bdbdULL, 0x00dddd00dd00ddddULL, 0x00e4e400e400e4e4ULL, + 0x00a1a100a100a1a1ULL, 0x00e0e000e000e0e0ULL, 0x008a8a008a008a8aULL, + 0x00f1f100f100f1f1ULL, 0x00d6d600d600d6d6ULL, 0x007a7a007a007a7aULL, + 0x00bbbb00bb00bbbbULL, 0x00e3e300e300e3e3ULL, 0x0040400040004040ULL, + 0x004f4f004f004f4fULL, +}; + +__visible const u64 camellia_sp00444404[256] = { + 0x0000707070700070ULL, 0x00002c2c2c2c002cULL, 0x0000b3b3b3b300b3ULL, + 0x0000c0c0c0c000c0ULL, 0x0000e4e4e4e400e4ULL, 0x0000575757570057ULL, + 0x0000eaeaeaea00eaULL, 0x0000aeaeaeae00aeULL, 0x0000232323230023ULL, + 0x00006b6b6b6b006bULL, 0x0000454545450045ULL, 0x0000a5a5a5a500a5ULL, + 0x0000edededed00edULL, 0x00004f4f4f4f004fULL, 0x00001d1d1d1d001dULL, + 0x0000929292920092ULL, 0x0000868686860086ULL, 0x0000afafafaf00afULL, + 0x00007c7c7c7c007cULL, 0x00001f1f1f1f001fULL, 0x00003e3e3e3e003eULL, + 0x0000dcdcdcdc00dcULL, 0x00005e5e5e5e005eULL, 0x00000b0b0b0b000bULL, + 0x0000a6a6a6a600a6ULL, 0x0000393939390039ULL, 0x0000d5d5d5d500d5ULL, + 0x00005d5d5d5d005dULL, 0x0000d9d9d9d900d9ULL, 0x00005a5a5a5a005aULL, + 0x0000515151510051ULL, 0x00006c6c6c6c006cULL, 0x00008b8b8b8b008bULL, + 0x00009a9a9a9a009aULL, 0x0000fbfbfbfb00fbULL, 0x0000b0b0b0b000b0ULL, + 0x0000747474740074ULL, 0x00002b2b2b2b002bULL, 0x0000f0f0f0f000f0ULL, + 0x0000848484840084ULL, 0x0000dfdfdfdf00dfULL, 0x0000cbcbcbcb00cbULL, + 0x0000343434340034ULL, 0x0000767676760076ULL, 0x00006d6d6d6d006dULL, + 0x0000a9a9a9a900a9ULL, 0x0000d1d1d1d100d1ULL, 0x0000040404040004ULL, + 0x0000141414140014ULL, 0x00003a3a3a3a003aULL, 0x0000dededede00deULL, + 0x0000111111110011ULL, 0x0000323232320032ULL, 0x00009c9c9c9c009cULL, + 0x0000535353530053ULL, 0x0000f2f2f2f200f2ULL, 0x0000fefefefe00feULL, + 0x0000cfcfcfcf00cfULL, 0x0000c3c3c3c300c3ULL, 0x00007a7a7a7a007aULL, + 0x0000242424240024ULL, 0x0000e8e8e8e800e8ULL, 0x0000606060600060ULL, + 0x0000696969690069ULL, 0x0000aaaaaaaa00aaULL, 0x0000a0a0a0a000a0ULL, + 0x0000a1a1a1a100a1ULL, 0x0000626262620062ULL, 0x0000545454540054ULL, + 0x00001e1e1e1e001eULL, 0x0000e0e0e0e000e0ULL, 0x0000646464640064ULL, + 0x0000101010100010ULL, 0x0000000000000000ULL, 0x0000a3a3a3a300a3ULL, + 0x0000757575750075ULL, 0x00008a8a8a8a008aULL, 0x0000e6e6e6e600e6ULL, + 0x0000090909090009ULL, 0x0000dddddddd00ddULL, 0x0000878787870087ULL, + 0x0000838383830083ULL, 0x0000cdcdcdcd00cdULL, 0x0000909090900090ULL, + 0x0000737373730073ULL, 0x0000f6f6f6f600f6ULL, 0x00009d9d9d9d009dULL, + 0x0000bfbfbfbf00bfULL, 0x0000525252520052ULL, 0x0000d8d8d8d800d8ULL, + 0x0000c8c8c8c800c8ULL, 0x0000c6c6c6c600c6ULL, 0x0000818181810081ULL, + 0x00006f6f6f6f006fULL, 0x0000131313130013ULL, 0x0000636363630063ULL, + 0x0000e9e9e9e900e9ULL, 0x0000a7a7a7a700a7ULL, 0x00009f9f9f9f009fULL, + 0x0000bcbcbcbc00bcULL, 0x0000292929290029ULL, 0x0000f9f9f9f900f9ULL, + 0x00002f2f2f2f002fULL, 0x0000b4b4b4b400b4ULL, 0x0000787878780078ULL, + 0x0000060606060006ULL, 0x0000e7e7e7e700e7ULL, 0x0000717171710071ULL, + 0x0000d4d4d4d400d4ULL, 0x0000abababab00abULL, 0x0000888888880088ULL, + 0x00008d8d8d8d008dULL, 0x0000727272720072ULL, 0x0000b9b9b9b900b9ULL, + 0x0000f8f8f8f800f8ULL, 0x0000acacacac00acULL, 0x0000363636360036ULL, + 0x00002a2a2a2a002aULL, 0x00003c3c3c3c003cULL, 0x0000f1f1f1f100f1ULL, + 0x0000404040400040ULL, 0x0000d3d3d3d300d3ULL, 0x0000bbbbbbbb00bbULL, + 0x0000434343430043ULL, 0x0000151515150015ULL, 0x0000adadadad00adULL, + 0x0000777777770077ULL, 0x0000808080800080ULL, 0x0000828282820082ULL, + 0x0000ecececec00ecULL, 0x0000272727270027ULL, 0x0000e5e5e5e500e5ULL, + 0x0000858585850085ULL, 0x0000353535350035ULL, 0x00000c0c0c0c000cULL, + 0x0000414141410041ULL, 0x0000efefefef00efULL, 0x0000939393930093ULL, + 0x0000191919190019ULL, 0x0000212121210021ULL, 0x00000e0e0e0e000eULL, + 0x00004e4e4e4e004eULL, 0x0000656565650065ULL, 0x0000bdbdbdbd00bdULL, + 0x0000b8b8b8b800b8ULL, 0x00008f8f8f8f008fULL, 0x0000ebebebeb00ebULL, + 0x0000cececece00ceULL, 0x0000303030300030ULL, 0x00005f5f5f5f005fULL, + 0x0000c5c5c5c500c5ULL, 0x00001a1a1a1a001aULL, 0x0000e1e1e1e100e1ULL, + 0x0000cacacaca00caULL, 0x0000474747470047ULL, 0x00003d3d3d3d003dULL, + 0x0000010101010001ULL, 0x0000d6d6d6d600d6ULL, 0x0000565656560056ULL, + 0x00004d4d4d4d004dULL, 0x00000d0d0d0d000dULL, 0x0000666666660066ULL, + 0x0000cccccccc00ccULL, 0x00002d2d2d2d002dULL, 0x0000121212120012ULL, + 0x0000202020200020ULL, 0x0000b1b1b1b100b1ULL, 0x0000999999990099ULL, + 0x00004c4c4c4c004cULL, 0x0000c2c2c2c200c2ULL, 0x00007e7e7e7e007eULL, + 0x0000050505050005ULL, 0x0000b7b7b7b700b7ULL, 0x0000313131310031ULL, + 0x0000171717170017ULL, 0x0000d7d7d7d700d7ULL, 0x0000585858580058ULL, + 0x0000616161610061ULL, 0x00001b1b1b1b001bULL, 0x00001c1c1c1c001cULL, + 0x00000f0f0f0f000fULL, 0x0000161616160016ULL, 0x0000181818180018ULL, + 0x0000222222220022ULL, 0x0000444444440044ULL, 0x0000b2b2b2b200b2ULL, + 0x0000b5b5b5b500b5ULL, 0x0000919191910091ULL, 0x0000080808080008ULL, + 0x0000a8a8a8a800a8ULL, 0x0000fcfcfcfc00fcULL, 0x0000505050500050ULL, + 0x0000d0d0d0d000d0ULL, 0x00007d7d7d7d007dULL, 0x0000898989890089ULL, + 0x0000979797970097ULL, 0x00005b5b5b5b005bULL, 0x0000959595950095ULL, + 0x0000ffffffff00ffULL, 0x0000d2d2d2d200d2ULL, 0x0000c4c4c4c400c4ULL, + 0x0000484848480048ULL, 0x0000f7f7f7f700f7ULL, 0x0000dbdbdbdb00dbULL, + 0x0000030303030003ULL, 0x0000dadadada00daULL, 0x00003f3f3f3f003fULL, + 0x0000949494940094ULL, 0x00005c5c5c5c005cULL, 0x0000020202020002ULL, + 0x00004a4a4a4a004aULL, 0x0000333333330033ULL, 0x0000676767670067ULL, + 0x0000f3f3f3f300f3ULL, 0x00007f7f7f7f007fULL, 0x0000e2e2e2e200e2ULL, + 0x00009b9b9b9b009bULL, 0x0000262626260026ULL, 0x0000373737370037ULL, + 0x00003b3b3b3b003bULL, 0x0000969696960096ULL, 0x00004b4b4b4b004bULL, + 0x0000bebebebe00beULL, 0x00002e2e2e2e002eULL, 0x0000797979790079ULL, + 0x00008c8c8c8c008cULL, 0x00006e6e6e6e006eULL, 0x00008e8e8e8e008eULL, + 0x0000f5f5f5f500f5ULL, 0x0000b6b6b6b600b6ULL, 0x0000fdfdfdfd00fdULL, + 0x0000595959590059ULL, 0x0000989898980098ULL, 0x00006a6a6a6a006aULL, + 0x0000464646460046ULL, 0x0000babababa00baULL, 0x0000252525250025ULL, + 0x0000424242420042ULL, 0x0000a2a2a2a200a2ULL, 0x0000fafafafa00faULL, + 0x0000070707070007ULL, 0x0000555555550055ULL, 0x0000eeeeeeee00eeULL, + 0x00000a0a0a0a000aULL, 0x0000494949490049ULL, 0x0000686868680068ULL, + 0x0000383838380038ULL, 0x0000a4a4a4a400a4ULL, 0x0000282828280028ULL, + 0x00007b7b7b7b007bULL, 0x0000c9c9c9c900c9ULL, 0x0000c1c1c1c100c1ULL, + 0x0000e3e3e3e300e3ULL, 0x0000f4f4f4f400f4ULL, 0x0000c7c7c7c700c7ULL, + 0x00009e9e9e9e009eULL, +}; + +__visible const u64 camellia_sp02220222[256] = { + 0x00e0e0e000e0e0e0ULL, 0x0005050500050505ULL, 0x0058585800585858ULL, + 0x00d9d9d900d9d9d9ULL, 0x0067676700676767ULL, 0x004e4e4e004e4e4eULL, + 0x0081818100818181ULL, 0x00cbcbcb00cbcbcbULL, 0x00c9c9c900c9c9c9ULL, + 0x000b0b0b000b0b0bULL, 0x00aeaeae00aeaeaeULL, 0x006a6a6a006a6a6aULL, + 0x00d5d5d500d5d5d5ULL, 0x0018181800181818ULL, 0x005d5d5d005d5d5dULL, + 0x0082828200828282ULL, 0x0046464600464646ULL, 0x00dfdfdf00dfdfdfULL, + 0x00d6d6d600d6d6d6ULL, 0x0027272700272727ULL, 0x008a8a8a008a8a8aULL, + 0x0032323200323232ULL, 0x004b4b4b004b4b4bULL, 0x0042424200424242ULL, + 0x00dbdbdb00dbdbdbULL, 0x001c1c1c001c1c1cULL, 0x009e9e9e009e9e9eULL, + 0x009c9c9c009c9c9cULL, 0x003a3a3a003a3a3aULL, 0x00cacaca00cacacaULL, + 0x0025252500252525ULL, 0x007b7b7b007b7b7bULL, 0x000d0d0d000d0d0dULL, + 0x0071717100717171ULL, 0x005f5f5f005f5f5fULL, 0x001f1f1f001f1f1fULL, + 0x00f8f8f800f8f8f8ULL, 0x00d7d7d700d7d7d7ULL, 0x003e3e3e003e3e3eULL, + 0x009d9d9d009d9d9dULL, 0x007c7c7c007c7c7cULL, 0x0060606000606060ULL, + 0x00b9b9b900b9b9b9ULL, 0x00bebebe00bebebeULL, 0x00bcbcbc00bcbcbcULL, + 0x008b8b8b008b8b8bULL, 0x0016161600161616ULL, 0x0034343400343434ULL, + 0x004d4d4d004d4d4dULL, 0x00c3c3c300c3c3c3ULL, 0x0072727200727272ULL, + 0x0095959500959595ULL, 0x00ababab00abababULL, 0x008e8e8e008e8e8eULL, + 0x00bababa00bababaULL, 0x007a7a7a007a7a7aULL, 0x00b3b3b300b3b3b3ULL, + 0x0002020200020202ULL, 0x00b4b4b400b4b4b4ULL, 0x00adadad00adadadULL, + 0x00a2a2a200a2a2a2ULL, 0x00acacac00acacacULL, 0x00d8d8d800d8d8d8ULL, + 0x009a9a9a009a9a9aULL, 0x0017171700171717ULL, 0x001a1a1a001a1a1aULL, + 0x0035353500353535ULL, 0x00cccccc00ccccccULL, 0x00f7f7f700f7f7f7ULL, + 0x0099999900999999ULL, 0x0061616100616161ULL, 0x005a5a5a005a5a5aULL, + 0x00e8e8e800e8e8e8ULL, 0x0024242400242424ULL, 0x0056565600565656ULL, + 0x0040404000404040ULL, 0x00e1e1e100e1e1e1ULL, 0x0063636300636363ULL, + 0x0009090900090909ULL, 0x0033333300333333ULL, 0x00bfbfbf00bfbfbfULL, + 0x0098989800989898ULL, 0x0097979700979797ULL, 0x0085858500858585ULL, + 0x0068686800686868ULL, 0x00fcfcfc00fcfcfcULL, 0x00ececec00ecececULL, + 0x000a0a0a000a0a0aULL, 0x00dadada00dadadaULL, 0x006f6f6f006f6f6fULL, + 0x0053535300535353ULL, 0x0062626200626262ULL, 0x00a3a3a300a3a3a3ULL, + 0x002e2e2e002e2e2eULL, 0x0008080800080808ULL, 0x00afafaf00afafafULL, + 0x0028282800282828ULL, 0x00b0b0b000b0b0b0ULL, 0x0074747400747474ULL, + 0x00c2c2c200c2c2c2ULL, 0x00bdbdbd00bdbdbdULL, 0x0036363600363636ULL, + 0x0022222200222222ULL, 0x0038383800383838ULL, 0x0064646400646464ULL, + 0x001e1e1e001e1e1eULL, 0x0039393900393939ULL, 0x002c2c2c002c2c2cULL, + 0x00a6a6a600a6a6a6ULL, 0x0030303000303030ULL, 0x00e5e5e500e5e5e5ULL, + 0x0044444400444444ULL, 0x00fdfdfd00fdfdfdULL, 0x0088888800888888ULL, + 0x009f9f9f009f9f9fULL, 0x0065656500656565ULL, 0x0087878700878787ULL, + 0x006b6b6b006b6b6bULL, 0x00f4f4f400f4f4f4ULL, 0x0023232300232323ULL, + 0x0048484800484848ULL, 0x0010101000101010ULL, 0x00d1d1d100d1d1d1ULL, + 0x0051515100515151ULL, 0x00c0c0c000c0c0c0ULL, 0x00f9f9f900f9f9f9ULL, + 0x00d2d2d200d2d2d2ULL, 0x00a0a0a000a0a0a0ULL, 0x0055555500555555ULL, + 0x00a1a1a100a1a1a1ULL, 0x0041414100414141ULL, 0x00fafafa00fafafaULL, + 0x0043434300434343ULL, 0x0013131300131313ULL, 0x00c4c4c400c4c4c4ULL, + 0x002f2f2f002f2f2fULL, 0x00a8a8a800a8a8a8ULL, 0x00b6b6b600b6b6b6ULL, + 0x003c3c3c003c3c3cULL, 0x002b2b2b002b2b2bULL, 0x00c1c1c100c1c1c1ULL, + 0x00ffffff00ffffffULL, 0x00c8c8c800c8c8c8ULL, 0x00a5a5a500a5a5a5ULL, + 0x0020202000202020ULL, 0x0089898900898989ULL, 0x0000000000000000ULL, + 0x0090909000909090ULL, 0x0047474700474747ULL, 0x00efefef00efefefULL, + 0x00eaeaea00eaeaeaULL, 0x00b7b7b700b7b7b7ULL, 0x0015151500151515ULL, + 0x0006060600060606ULL, 0x00cdcdcd00cdcdcdULL, 0x00b5b5b500b5b5b5ULL, + 0x0012121200121212ULL, 0x007e7e7e007e7e7eULL, 0x00bbbbbb00bbbbbbULL, + 0x0029292900292929ULL, 0x000f0f0f000f0f0fULL, 0x00b8b8b800b8b8b8ULL, + 0x0007070700070707ULL, 0x0004040400040404ULL, 0x009b9b9b009b9b9bULL, + 0x0094949400949494ULL, 0x0021212100212121ULL, 0x0066666600666666ULL, + 0x00e6e6e600e6e6e6ULL, 0x00cecece00cececeULL, 0x00ededed00edededULL, + 0x00e7e7e700e7e7e7ULL, 0x003b3b3b003b3b3bULL, 0x00fefefe00fefefeULL, + 0x007f7f7f007f7f7fULL, 0x00c5c5c500c5c5c5ULL, 0x00a4a4a400a4a4a4ULL, + 0x0037373700373737ULL, 0x00b1b1b100b1b1b1ULL, 0x004c4c4c004c4c4cULL, + 0x0091919100919191ULL, 0x006e6e6e006e6e6eULL, 0x008d8d8d008d8d8dULL, + 0x0076767600767676ULL, 0x0003030300030303ULL, 0x002d2d2d002d2d2dULL, + 0x00dedede00dededeULL, 0x0096969600969696ULL, 0x0026262600262626ULL, + 0x007d7d7d007d7d7dULL, 0x00c6c6c600c6c6c6ULL, 0x005c5c5c005c5c5cULL, + 0x00d3d3d300d3d3d3ULL, 0x00f2f2f200f2f2f2ULL, 0x004f4f4f004f4f4fULL, + 0x0019191900191919ULL, 0x003f3f3f003f3f3fULL, 0x00dcdcdc00dcdcdcULL, + 0x0079797900797979ULL, 0x001d1d1d001d1d1dULL, 0x0052525200525252ULL, + 0x00ebebeb00ebebebULL, 0x00f3f3f300f3f3f3ULL, 0x006d6d6d006d6d6dULL, + 0x005e5e5e005e5e5eULL, 0x00fbfbfb00fbfbfbULL, 0x0069696900696969ULL, + 0x00b2b2b200b2b2b2ULL, 0x00f0f0f000f0f0f0ULL, 0x0031313100313131ULL, + 0x000c0c0c000c0c0cULL, 0x00d4d4d400d4d4d4ULL, 0x00cfcfcf00cfcfcfULL, + 0x008c8c8c008c8c8cULL, 0x00e2e2e200e2e2e2ULL, 0x0075757500757575ULL, + 0x00a9a9a900a9a9a9ULL, 0x004a4a4a004a4a4aULL, 0x0057575700575757ULL, + 0x0084848400848484ULL, 0x0011111100111111ULL, 0x0045454500454545ULL, + 0x001b1b1b001b1b1bULL, 0x00f5f5f500f5f5f5ULL, 0x00e4e4e400e4e4e4ULL, + 0x000e0e0e000e0e0eULL, 0x0073737300737373ULL, 0x00aaaaaa00aaaaaaULL, + 0x00f1f1f100f1f1f1ULL, 0x00dddddd00ddddddULL, 0x0059595900595959ULL, + 0x0014141400141414ULL, 0x006c6c6c006c6c6cULL, 0x0092929200929292ULL, + 0x0054545400545454ULL, 0x00d0d0d000d0d0d0ULL, 0x0078787800787878ULL, + 0x0070707000707070ULL, 0x00e3e3e300e3e3e3ULL, 0x0049494900494949ULL, + 0x0080808000808080ULL, 0x0050505000505050ULL, 0x00a7a7a700a7a7a7ULL, + 0x00f6f6f600f6f6f6ULL, 0x0077777700777777ULL, 0x0093939300939393ULL, + 0x0086868600868686ULL, 0x0083838300838383ULL, 0x002a2a2a002a2a2aULL, + 0x00c7c7c700c7c7c7ULL, 0x005b5b5b005b5b5bULL, 0x00e9e9e900e9e9e9ULL, + 0x00eeeeee00eeeeeeULL, 0x008f8f8f008f8f8fULL, 0x0001010100010101ULL, + 0x003d3d3d003d3d3dULL, +}; + +__visible const u64 camellia_sp30333033[256] = { + 0x3800383838003838ULL, 0x4100414141004141ULL, 0x1600161616001616ULL, + 0x7600767676007676ULL, 0xd900d9d9d900d9d9ULL, 0x9300939393009393ULL, + 0x6000606060006060ULL, 0xf200f2f2f200f2f2ULL, 0x7200727272007272ULL, + 0xc200c2c2c200c2c2ULL, 0xab00ababab00ababULL, 0x9a009a9a9a009a9aULL, + 0x7500757575007575ULL, 0x0600060606000606ULL, 0x5700575757005757ULL, + 0xa000a0a0a000a0a0ULL, 0x9100919191009191ULL, 0xf700f7f7f700f7f7ULL, + 0xb500b5b5b500b5b5ULL, 0xc900c9c9c900c9c9ULL, 0xa200a2a2a200a2a2ULL, + 0x8c008c8c8c008c8cULL, 0xd200d2d2d200d2d2ULL, 0x9000909090009090ULL, + 0xf600f6f6f600f6f6ULL, 0x0700070707000707ULL, 0xa700a7a7a700a7a7ULL, + 0x2700272727002727ULL, 0x8e008e8e8e008e8eULL, 0xb200b2b2b200b2b2ULL, + 0x4900494949004949ULL, 0xde00dedede00dedeULL, 0x4300434343004343ULL, + 0x5c005c5c5c005c5cULL, 0xd700d7d7d700d7d7ULL, 0xc700c7c7c700c7c7ULL, + 0x3e003e3e3e003e3eULL, 0xf500f5f5f500f5f5ULL, 0x8f008f8f8f008f8fULL, + 0x6700676767006767ULL, 0x1f001f1f1f001f1fULL, 0x1800181818001818ULL, + 0x6e006e6e6e006e6eULL, 0xaf00afafaf00afafULL, 0x2f002f2f2f002f2fULL, + 0xe200e2e2e200e2e2ULL, 0x8500858585008585ULL, 0x0d000d0d0d000d0dULL, + 0x5300535353005353ULL, 0xf000f0f0f000f0f0ULL, 0x9c009c9c9c009c9cULL, + 0x6500656565006565ULL, 0xea00eaeaea00eaeaULL, 0xa300a3a3a300a3a3ULL, + 0xae00aeaeae00aeaeULL, 0x9e009e9e9e009e9eULL, 0xec00ececec00ececULL, + 0x8000808080008080ULL, 0x2d002d2d2d002d2dULL, 0x6b006b6b6b006b6bULL, + 0xa800a8a8a800a8a8ULL, 0x2b002b2b2b002b2bULL, 0x3600363636003636ULL, + 0xa600a6a6a600a6a6ULL, 0xc500c5c5c500c5c5ULL, 0x8600868686008686ULL, + 0x4d004d4d4d004d4dULL, 0x3300333333003333ULL, 0xfd00fdfdfd00fdfdULL, + 0x6600666666006666ULL, 0x5800585858005858ULL, 0x9600969696009696ULL, + 0x3a003a3a3a003a3aULL, 0x0900090909000909ULL, 0x9500959595009595ULL, + 0x1000101010001010ULL, 0x7800787878007878ULL, 0xd800d8d8d800d8d8ULL, + 0x4200424242004242ULL, 0xcc00cccccc00ccccULL, 0xef00efefef00efefULL, + 0x2600262626002626ULL, 0xe500e5e5e500e5e5ULL, 0x6100616161006161ULL, + 0x1a001a1a1a001a1aULL, 0x3f003f3f3f003f3fULL, 0x3b003b3b3b003b3bULL, + 0x8200828282008282ULL, 0xb600b6b6b600b6b6ULL, 0xdb00dbdbdb00dbdbULL, + 0xd400d4d4d400d4d4ULL, 0x9800989898009898ULL, 0xe800e8e8e800e8e8ULL, + 0x8b008b8b8b008b8bULL, 0x0200020202000202ULL, 0xeb00ebebeb00ebebULL, + 0x0a000a0a0a000a0aULL, 0x2c002c2c2c002c2cULL, 0x1d001d1d1d001d1dULL, + 0xb000b0b0b000b0b0ULL, 0x6f006f6f6f006f6fULL, 0x8d008d8d8d008d8dULL, + 0x8800888888008888ULL, 0x0e000e0e0e000e0eULL, 0x1900191919001919ULL, + 0x8700878787008787ULL, 0x4e004e4e4e004e4eULL, 0x0b000b0b0b000b0bULL, + 0xa900a9a9a900a9a9ULL, 0x0c000c0c0c000c0cULL, 0x7900797979007979ULL, + 0x1100111111001111ULL, 0x7f007f7f7f007f7fULL, 0x2200222222002222ULL, + 0xe700e7e7e700e7e7ULL, 0x5900595959005959ULL, 0xe100e1e1e100e1e1ULL, + 0xda00dadada00dadaULL, 0x3d003d3d3d003d3dULL, 0xc800c8c8c800c8c8ULL, + 0x1200121212001212ULL, 0x0400040404000404ULL, 0x7400747474007474ULL, + 0x5400545454005454ULL, 0x3000303030003030ULL, 0x7e007e7e7e007e7eULL, + 0xb400b4b4b400b4b4ULL, 0x2800282828002828ULL, 0x5500555555005555ULL, + 0x6800686868006868ULL, 0x5000505050005050ULL, 0xbe00bebebe00bebeULL, + 0xd000d0d0d000d0d0ULL, 0xc400c4c4c400c4c4ULL, 0x3100313131003131ULL, + 0xcb00cbcbcb00cbcbULL, 0x2a002a2a2a002a2aULL, 0xad00adadad00adadULL, + 0x0f000f0f0f000f0fULL, 0xca00cacaca00cacaULL, 0x7000707070007070ULL, + 0xff00ffffff00ffffULL, 0x3200323232003232ULL, 0x6900696969006969ULL, + 0x0800080808000808ULL, 0x6200626262006262ULL, 0x0000000000000000ULL, + 0x2400242424002424ULL, 0xd100d1d1d100d1d1ULL, 0xfb00fbfbfb00fbfbULL, + 0xba00bababa00babaULL, 0xed00ededed00ededULL, 0x4500454545004545ULL, + 0x8100818181008181ULL, 0x7300737373007373ULL, 0x6d006d6d6d006d6dULL, + 0x8400848484008484ULL, 0x9f009f9f9f009f9fULL, 0xee00eeeeee00eeeeULL, + 0x4a004a4a4a004a4aULL, 0xc300c3c3c300c3c3ULL, 0x2e002e2e2e002e2eULL, + 0xc100c1c1c100c1c1ULL, 0x0100010101000101ULL, 0xe600e6e6e600e6e6ULL, + 0x2500252525002525ULL, 0x4800484848004848ULL, 0x9900999999009999ULL, + 0xb900b9b9b900b9b9ULL, 0xb300b3b3b300b3b3ULL, 0x7b007b7b7b007b7bULL, + 0xf900f9f9f900f9f9ULL, 0xce00cecece00ceceULL, 0xbf00bfbfbf00bfbfULL, + 0xdf00dfdfdf00dfdfULL, 0x7100717171007171ULL, 0x2900292929002929ULL, + 0xcd00cdcdcd00cdcdULL, 0x6c006c6c6c006c6cULL, 0x1300131313001313ULL, + 0x6400646464006464ULL, 0x9b009b9b9b009b9bULL, 0x6300636363006363ULL, + 0x9d009d9d9d009d9dULL, 0xc000c0c0c000c0c0ULL, 0x4b004b4b4b004b4bULL, + 0xb700b7b7b700b7b7ULL, 0xa500a5a5a500a5a5ULL, 0x8900898989008989ULL, + 0x5f005f5f5f005f5fULL, 0xb100b1b1b100b1b1ULL, 0x1700171717001717ULL, + 0xf400f4f4f400f4f4ULL, 0xbc00bcbcbc00bcbcULL, 0xd300d3d3d300d3d3ULL, + 0x4600464646004646ULL, 0xcf00cfcfcf00cfcfULL, 0x3700373737003737ULL, + 0x5e005e5e5e005e5eULL, 0x4700474747004747ULL, 0x9400949494009494ULL, + 0xfa00fafafa00fafaULL, 0xfc00fcfcfc00fcfcULL, 0x5b005b5b5b005b5bULL, + 0x9700979797009797ULL, 0xfe00fefefe00fefeULL, 0x5a005a5a5a005a5aULL, + 0xac00acacac00acacULL, 0x3c003c3c3c003c3cULL, 0x4c004c4c4c004c4cULL, + 0x0300030303000303ULL, 0x3500353535003535ULL, 0xf300f3f3f300f3f3ULL, + 0x2300232323002323ULL, 0xb800b8b8b800b8b8ULL, 0x5d005d5d5d005d5dULL, + 0x6a006a6a6a006a6aULL, 0x9200929292009292ULL, 0xd500d5d5d500d5d5ULL, + 0x2100212121002121ULL, 0x4400444444004444ULL, 0x5100515151005151ULL, + 0xc600c6c6c600c6c6ULL, 0x7d007d7d7d007d7dULL, 0x3900393939003939ULL, + 0x8300838383008383ULL, 0xdc00dcdcdc00dcdcULL, 0xaa00aaaaaa00aaaaULL, + 0x7c007c7c7c007c7cULL, 0x7700777777007777ULL, 0x5600565656005656ULL, + 0x0500050505000505ULL, 0x1b001b1b1b001b1bULL, 0xa400a4a4a400a4a4ULL, + 0x1500151515001515ULL, 0x3400343434003434ULL, 0x1e001e1e1e001e1eULL, + 0x1c001c1c1c001c1cULL, 0xf800f8f8f800f8f8ULL, 0x5200525252005252ULL, + 0x2000202020002020ULL, 0x1400141414001414ULL, 0xe900e9e9e900e9e9ULL, + 0xbd00bdbdbd00bdbdULL, 0xdd00dddddd00ddddULL, 0xe400e4e4e400e4e4ULL, + 0xa100a1a1a100a1a1ULL, 0xe000e0e0e000e0e0ULL, 0x8a008a8a8a008a8aULL, + 0xf100f1f1f100f1f1ULL, 0xd600d6d6d600d6d6ULL, 0x7a007a7a7a007a7aULL, + 0xbb00bbbbbb00bbbbULL, 0xe300e3e3e300e3e3ULL, 0x4000404040004040ULL, + 0x4f004f4f4f004f4fULL, +}; + +__visible const u64 camellia_sp44044404[256] = { + 0x7070007070700070ULL, 0x2c2c002c2c2c002cULL, 0xb3b300b3b3b300b3ULL, + 0xc0c000c0c0c000c0ULL, 0xe4e400e4e4e400e4ULL, 0x5757005757570057ULL, + 0xeaea00eaeaea00eaULL, 0xaeae00aeaeae00aeULL, 0x2323002323230023ULL, + 0x6b6b006b6b6b006bULL, 0x4545004545450045ULL, 0xa5a500a5a5a500a5ULL, + 0xeded00ededed00edULL, 0x4f4f004f4f4f004fULL, 0x1d1d001d1d1d001dULL, + 0x9292009292920092ULL, 0x8686008686860086ULL, 0xafaf00afafaf00afULL, + 0x7c7c007c7c7c007cULL, 0x1f1f001f1f1f001fULL, 0x3e3e003e3e3e003eULL, + 0xdcdc00dcdcdc00dcULL, 0x5e5e005e5e5e005eULL, 0x0b0b000b0b0b000bULL, + 0xa6a600a6a6a600a6ULL, 0x3939003939390039ULL, 0xd5d500d5d5d500d5ULL, + 0x5d5d005d5d5d005dULL, 0xd9d900d9d9d900d9ULL, 0x5a5a005a5a5a005aULL, + 0x5151005151510051ULL, 0x6c6c006c6c6c006cULL, 0x8b8b008b8b8b008bULL, + 0x9a9a009a9a9a009aULL, 0xfbfb00fbfbfb00fbULL, 0xb0b000b0b0b000b0ULL, + 0x7474007474740074ULL, 0x2b2b002b2b2b002bULL, 0xf0f000f0f0f000f0ULL, + 0x8484008484840084ULL, 0xdfdf00dfdfdf00dfULL, 0xcbcb00cbcbcb00cbULL, + 0x3434003434340034ULL, 0x7676007676760076ULL, 0x6d6d006d6d6d006dULL, + 0xa9a900a9a9a900a9ULL, 0xd1d100d1d1d100d1ULL, 0x0404000404040004ULL, + 0x1414001414140014ULL, 0x3a3a003a3a3a003aULL, 0xdede00dedede00deULL, + 0x1111001111110011ULL, 0x3232003232320032ULL, 0x9c9c009c9c9c009cULL, + 0x5353005353530053ULL, 0xf2f200f2f2f200f2ULL, 0xfefe00fefefe00feULL, + 0xcfcf00cfcfcf00cfULL, 0xc3c300c3c3c300c3ULL, 0x7a7a007a7a7a007aULL, + 0x2424002424240024ULL, 0xe8e800e8e8e800e8ULL, 0x6060006060600060ULL, + 0x6969006969690069ULL, 0xaaaa00aaaaaa00aaULL, 0xa0a000a0a0a000a0ULL, + 0xa1a100a1a1a100a1ULL, 0x6262006262620062ULL, 0x5454005454540054ULL, + 0x1e1e001e1e1e001eULL, 0xe0e000e0e0e000e0ULL, 0x6464006464640064ULL, + 0x1010001010100010ULL, 0x0000000000000000ULL, 0xa3a300a3a3a300a3ULL, + 0x7575007575750075ULL, 0x8a8a008a8a8a008aULL, 0xe6e600e6e6e600e6ULL, + 0x0909000909090009ULL, 0xdddd00dddddd00ddULL, 0x8787008787870087ULL, + 0x8383008383830083ULL, 0xcdcd00cdcdcd00cdULL, 0x9090009090900090ULL, + 0x7373007373730073ULL, 0xf6f600f6f6f600f6ULL, 0x9d9d009d9d9d009dULL, + 0xbfbf00bfbfbf00bfULL, 0x5252005252520052ULL, 0xd8d800d8d8d800d8ULL, + 0xc8c800c8c8c800c8ULL, 0xc6c600c6c6c600c6ULL, 0x8181008181810081ULL, + 0x6f6f006f6f6f006fULL, 0x1313001313130013ULL, 0x6363006363630063ULL, + 0xe9e900e9e9e900e9ULL, 0xa7a700a7a7a700a7ULL, 0x9f9f009f9f9f009fULL, + 0xbcbc00bcbcbc00bcULL, 0x2929002929290029ULL, 0xf9f900f9f9f900f9ULL, + 0x2f2f002f2f2f002fULL, 0xb4b400b4b4b400b4ULL, 0x7878007878780078ULL, + 0x0606000606060006ULL, 0xe7e700e7e7e700e7ULL, 0x7171007171710071ULL, + 0xd4d400d4d4d400d4ULL, 0xabab00ababab00abULL, 0x8888008888880088ULL, + 0x8d8d008d8d8d008dULL, 0x7272007272720072ULL, 0xb9b900b9b9b900b9ULL, + 0xf8f800f8f8f800f8ULL, 0xacac00acacac00acULL, 0x3636003636360036ULL, + 0x2a2a002a2a2a002aULL, 0x3c3c003c3c3c003cULL, 0xf1f100f1f1f100f1ULL, + 0x4040004040400040ULL, 0xd3d300d3d3d300d3ULL, 0xbbbb00bbbbbb00bbULL, + 0x4343004343430043ULL, 0x1515001515150015ULL, 0xadad00adadad00adULL, + 0x7777007777770077ULL, 0x8080008080800080ULL, 0x8282008282820082ULL, + 0xecec00ececec00ecULL, 0x2727002727270027ULL, 0xe5e500e5e5e500e5ULL, + 0x8585008585850085ULL, 0x3535003535350035ULL, 0x0c0c000c0c0c000cULL, + 0x4141004141410041ULL, 0xefef00efefef00efULL, 0x9393009393930093ULL, + 0x1919001919190019ULL, 0x2121002121210021ULL, 0x0e0e000e0e0e000eULL, + 0x4e4e004e4e4e004eULL, 0x6565006565650065ULL, 0xbdbd00bdbdbd00bdULL, + 0xb8b800b8b8b800b8ULL, 0x8f8f008f8f8f008fULL, 0xebeb00ebebeb00ebULL, + 0xcece00cecece00ceULL, 0x3030003030300030ULL, 0x5f5f005f5f5f005fULL, + 0xc5c500c5c5c500c5ULL, 0x1a1a001a1a1a001aULL, 0xe1e100e1e1e100e1ULL, + 0xcaca00cacaca00caULL, 0x4747004747470047ULL, 0x3d3d003d3d3d003dULL, + 0x0101000101010001ULL, 0xd6d600d6d6d600d6ULL, 0x5656005656560056ULL, + 0x4d4d004d4d4d004dULL, 0x0d0d000d0d0d000dULL, 0x6666006666660066ULL, + 0xcccc00cccccc00ccULL, 0x2d2d002d2d2d002dULL, 0x1212001212120012ULL, + 0x2020002020200020ULL, 0xb1b100b1b1b100b1ULL, 0x9999009999990099ULL, + 0x4c4c004c4c4c004cULL, 0xc2c200c2c2c200c2ULL, 0x7e7e007e7e7e007eULL, + 0x0505000505050005ULL, 0xb7b700b7b7b700b7ULL, 0x3131003131310031ULL, + 0x1717001717170017ULL, 0xd7d700d7d7d700d7ULL, 0x5858005858580058ULL, + 0x6161006161610061ULL, 0x1b1b001b1b1b001bULL, 0x1c1c001c1c1c001cULL, + 0x0f0f000f0f0f000fULL, 0x1616001616160016ULL, 0x1818001818180018ULL, + 0x2222002222220022ULL, 0x4444004444440044ULL, 0xb2b200b2b2b200b2ULL, + 0xb5b500b5b5b500b5ULL, 0x9191009191910091ULL, 0x0808000808080008ULL, + 0xa8a800a8a8a800a8ULL, 0xfcfc00fcfcfc00fcULL, 0x5050005050500050ULL, + 0xd0d000d0d0d000d0ULL, 0x7d7d007d7d7d007dULL, 0x8989008989890089ULL, + 0x9797009797970097ULL, 0x5b5b005b5b5b005bULL, 0x9595009595950095ULL, + 0xffff00ffffff00ffULL, 0xd2d200d2d2d200d2ULL, 0xc4c400c4c4c400c4ULL, + 0x4848004848480048ULL, 0xf7f700f7f7f700f7ULL, 0xdbdb00dbdbdb00dbULL, + 0x0303000303030003ULL, 0xdada00dadada00daULL, 0x3f3f003f3f3f003fULL, + 0x9494009494940094ULL, 0x5c5c005c5c5c005cULL, 0x0202000202020002ULL, + 0x4a4a004a4a4a004aULL, 0x3333003333330033ULL, 0x6767006767670067ULL, + 0xf3f300f3f3f300f3ULL, 0x7f7f007f7f7f007fULL, 0xe2e200e2e2e200e2ULL, + 0x9b9b009b9b9b009bULL, 0x2626002626260026ULL, 0x3737003737370037ULL, + 0x3b3b003b3b3b003bULL, 0x9696009696960096ULL, 0x4b4b004b4b4b004bULL, + 0xbebe00bebebe00beULL, 0x2e2e002e2e2e002eULL, 0x7979007979790079ULL, + 0x8c8c008c8c8c008cULL, 0x6e6e006e6e6e006eULL, 0x8e8e008e8e8e008eULL, + 0xf5f500f5f5f500f5ULL, 0xb6b600b6b6b600b6ULL, 0xfdfd00fdfdfd00fdULL, + 0x5959005959590059ULL, 0x9898009898980098ULL, 0x6a6a006a6a6a006aULL, + 0x4646004646460046ULL, 0xbaba00bababa00baULL, 0x2525002525250025ULL, + 0x4242004242420042ULL, 0xa2a200a2a2a200a2ULL, 0xfafa00fafafa00faULL, + 0x0707000707070007ULL, 0x5555005555550055ULL, 0xeeee00eeeeee00eeULL, + 0x0a0a000a0a0a000aULL, 0x4949004949490049ULL, 0x6868006868680068ULL, + 0x3838003838380038ULL, 0xa4a400a4a4a400a4ULL, 0x2828002828280028ULL, + 0x7b7b007b7b7b007bULL, 0xc9c900c9c9c900c9ULL, 0xc1c100c1c1c100c1ULL, + 0xe3e300e3e3e300e3ULL, 0xf4f400f4f4f400f4ULL, 0xc7c700c7c7c700c7ULL, + 0x9e9e009e9e9e009eULL, +}; + +__visible const u64 camellia_sp11101110[256] = { + 0x7070700070707000ULL, 0x8282820082828200ULL, 0x2c2c2c002c2c2c00ULL, + 0xececec00ececec00ULL, 0xb3b3b300b3b3b300ULL, 0x2727270027272700ULL, + 0xc0c0c000c0c0c000ULL, 0xe5e5e500e5e5e500ULL, 0xe4e4e400e4e4e400ULL, + 0x8585850085858500ULL, 0x5757570057575700ULL, 0x3535350035353500ULL, + 0xeaeaea00eaeaea00ULL, 0x0c0c0c000c0c0c00ULL, 0xaeaeae00aeaeae00ULL, + 0x4141410041414100ULL, 0x2323230023232300ULL, 0xefefef00efefef00ULL, + 0x6b6b6b006b6b6b00ULL, 0x9393930093939300ULL, 0x4545450045454500ULL, + 0x1919190019191900ULL, 0xa5a5a500a5a5a500ULL, 0x2121210021212100ULL, + 0xededed00ededed00ULL, 0x0e0e0e000e0e0e00ULL, 0x4f4f4f004f4f4f00ULL, + 0x4e4e4e004e4e4e00ULL, 0x1d1d1d001d1d1d00ULL, 0x6565650065656500ULL, + 0x9292920092929200ULL, 0xbdbdbd00bdbdbd00ULL, 0x8686860086868600ULL, + 0xb8b8b800b8b8b800ULL, 0xafafaf00afafaf00ULL, 0x8f8f8f008f8f8f00ULL, + 0x7c7c7c007c7c7c00ULL, 0xebebeb00ebebeb00ULL, 0x1f1f1f001f1f1f00ULL, + 0xcecece00cecece00ULL, 0x3e3e3e003e3e3e00ULL, 0x3030300030303000ULL, + 0xdcdcdc00dcdcdc00ULL, 0x5f5f5f005f5f5f00ULL, 0x5e5e5e005e5e5e00ULL, + 0xc5c5c500c5c5c500ULL, 0x0b0b0b000b0b0b00ULL, 0x1a1a1a001a1a1a00ULL, + 0xa6a6a600a6a6a600ULL, 0xe1e1e100e1e1e100ULL, 0x3939390039393900ULL, + 0xcacaca00cacaca00ULL, 0xd5d5d500d5d5d500ULL, 0x4747470047474700ULL, + 0x5d5d5d005d5d5d00ULL, 0x3d3d3d003d3d3d00ULL, 0xd9d9d900d9d9d900ULL, + 0x0101010001010100ULL, 0x5a5a5a005a5a5a00ULL, 0xd6d6d600d6d6d600ULL, + 0x5151510051515100ULL, 0x5656560056565600ULL, 0x6c6c6c006c6c6c00ULL, + 0x4d4d4d004d4d4d00ULL, 0x8b8b8b008b8b8b00ULL, 0x0d0d0d000d0d0d00ULL, + 0x9a9a9a009a9a9a00ULL, 0x6666660066666600ULL, 0xfbfbfb00fbfbfb00ULL, + 0xcccccc00cccccc00ULL, 0xb0b0b000b0b0b000ULL, 0x2d2d2d002d2d2d00ULL, + 0x7474740074747400ULL, 0x1212120012121200ULL, 0x2b2b2b002b2b2b00ULL, + 0x2020200020202000ULL, 0xf0f0f000f0f0f000ULL, 0xb1b1b100b1b1b100ULL, + 0x8484840084848400ULL, 0x9999990099999900ULL, 0xdfdfdf00dfdfdf00ULL, + 0x4c4c4c004c4c4c00ULL, 0xcbcbcb00cbcbcb00ULL, 0xc2c2c200c2c2c200ULL, + 0x3434340034343400ULL, 0x7e7e7e007e7e7e00ULL, 0x7676760076767600ULL, + 0x0505050005050500ULL, 0x6d6d6d006d6d6d00ULL, 0xb7b7b700b7b7b700ULL, + 0xa9a9a900a9a9a900ULL, 0x3131310031313100ULL, 0xd1d1d100d1d1d100ULL, + 0x1717170017171700ULL, 0x0404040004040400ULL, 0xd7d7d700d7d7d700ULL, + 0x1414140014141400ULL, 0x5858580058585800ULL, 0x3a3a3a003a3a3a00ULL, + 0x6161610061616100ULL, 0xdedede00dedede00ULL, 0x1b1b1b001b1b1b00ULL, + 0x1111110011111100ULL, 0x1c1c1c001c1c1c00ULL, 0x3232320032323200ULL, + 0x0f0f0f000f0f0f00ULL, 0x9c9c9c009c9c9c00ULL, 0x1616160016161600ULL, + 0x5353530053535300ULL, 0x1818180018181800ULL, 0xf2f2f200f2f2f200ULL, + 0x2222220022222200ULL, 0xfefefe00fefefe00ULL, 0x4444440044444400ULL, + 0xcfcfcf00cfcfcf00ULL, 0xb2b2b200b2b2b200ULL, 0xc3c3c300c3c3c300ULL, + 0xb5b5b500b5b5b500ULL, 0x7a7a7a007a7a7a00ULL, 0x9191910091919100ULL, + 0x2424240024242400ULL, 0x0808080008080800ULL, 0xe8e8e800e8e8e800ULL, + 0xa8a8a800a8a8a800ULL, 0x6060600060606000ULL, 0xfcfcfc00fcfcfc00ULL, + 0x6969690069696900ULL, 0x5050500050505000ULL, 0xaaaaaa00aaaaaa00ULL, + 0xd0d0d000d0d0d000ULL, 0xa0a0a000a0a0a000ULL, 0x7d7d7d007d7d7d00ULL, + 0xa1a1a100a1a1a100ULL, 0x8989890089898900ULL, 0x6262620062626200ULL, + 0x9797970097979700ULL, 0x5454540054545400ULL, 0x5b5b5b005b5b5b00ULL, + 0x1e1e1e001e1e1e00ULL, 0x9595950095959500ULL, 0xe0e0e000e0e0e000ULL, + 0xffffff00ffffff00ULL, 0x6464640064646400ULL, 0xd2d2d200d2d2d200ULL, + 0x1010100010101000ULL, 0xc4c4c400c4c4c400ULL, 0x0000000000000000ULL, + 0x4848480048484800ULL, 0xa3a3a300a3a3a300ULL, 0xf7f7f700f7f7f700ULL, + 0x7575750075757500ULL, 0xdbdbdb00dbdbdb00ULL, 0x8a8a8a008a8a8a00ULL, + 0x0303030003030300ULL, 0xe6e6e600e6e6e600ULL, 0xdadada00dadada00ULL, + 0x0909090009090900ULL, 0x3f3f3f003f3f3f00ULL, 0xdddddd00dddddd00ULL, + 0x9494940094949400ULL, 0x8787870087878700ULL, 0x5c5c5c005c5c5c00ULL, + 0x8383830083838300ULL, 0x0202020002020200ULL, 0xcdcdcd00cdcdcd00ULL, + 0x4a4a4a004a4a4a00ULL, 0x9090900090909000ULL, 0x3333330033333300ULL, + 0x7373730073737300ULL, 0x6767670067676700ULL, 0xf6f6f600f6f6f600ULL, + 0xf3f3f300f3f3f300ULL, 0x9d9d9d009d9d9d00ULL, 0x7f7f7f007f7f7f00ULL, + 0xbfbfbf00bfbfbf00ULL, 0xe2e2e200e2e2e200ULL, 0x5252520052525200ULL, + 0x9b9b9b009b9b9b00ULL, 0xd8d8d800d8d8d800ULL, 0x2626260026262600ULL, + 0xc8c8c800c8c8c800ULL, 0x3737370037373700ULL, 0xc6c6c600c6c6c600ULL, + 0x3b3b3b003b3b3b00ULL, 0x8181810081818100ULL, 0x9696960096969600ULL, + 0x6f6f6f006f6f6f00ULL, 0x4b4b4b004b4b4b00ULL, 0x1313130013131300ULL, + 0xbebebe00bebebe00ULL, 0x6363630063636300ULL, 0x2e2e2e002e2e2e00ULL, + 0xe9e9e900e9e9e900ULL, 0x7979790079797900ULL, 0xa7a7a700a7a7a700ULL, + 0x8c8c8c008c8c8c00ULL, 0x9f9f9f009f9f9f00ULL, 0x6e6e6e006e6e6e00ULL, + 0xbcbcbc00bcbcbc00ULL, 0x8e8e8e008e8e8e00ULL, 0x2929290029292900ULL, + 0xf5f5f500f5f5f500ULL, 0xf9f9f900f9f9f900ULL, 0xb6b6b600b6b6b600ULL, + 0x2f2f2f002f2f2f00ULL, 0xfdfdfd00fdfdfd00ULL, 0xb4b4b400b4b4b400ULL, + 0x5959590059595900ULL, 0x7878780078787800ULL, 0x9898980098989800ULL, + 0x0606060006060600ULL, 0x6a6a6a006a6a6a00ULL, 0xe7e7e700e7e7e700ULL, + 0x4646460046464600ULL, 0x7171710071717100ULL, 0xbababa00bababa00ULL, + 0xd4d4d400d4d4d400ULL, 0x2525250025252500ULL, 0xababab00ababab00ULL, + 0x4242420042424200ULL, 0x8888880088888800ULL, 0xa2a2a200a2a2a200ULL, + 0x8d8d8d008d8d8d00ULL, 0xfafafa00fafafa00ULL, 0x7272720072727200ULL, + 0x0707070007070700ULL, 0xb9b9b900b9b9b900ULL, 0x5555550055555500ULL, + 0xf8f8f800f8f8f800ULL, 0xeeeeee00eeeeee00ULL, 0xacacac00acacac00ULL, + 0x0a0a0a000a0a0a00ULL, 0x3636360036363600ULL, 0x4949490049494900ULL, + 0x2a2a2a002a2a2a00ULL, 0x6868680068686800ULL, 0x3c3c3c003c3c3c00ULL, + 0x3838380038383800ULL, 0xf1f1f100f1f1f100ULL, 0xa4a4a400a4a4a400ULL, + 0x4040400040404000ULL, 0x2828280028282800ULL, 0xd3d3d300d3d3d300ULL, + 0x7b7b7b007b7b7b00ULL, 0xbbbbbb00bbbbbb00ULL, 0xc9c9c900c9c9c900ULL, + 0x4343430043434300ULL, 0xc1c1c100c1c1c100ULL, 0x1515150015151500ULL, + 0xe3e3e300e3e3e300ULL, 0xadadad00adadad00ULL, 0xf4f4f400f4f4f400ULL, + 0x7777770077777700ULL, 0xc7c7c700c7c7c700ULL, 0x8080800080808000ULL, + 0x9e9e9e009e9e9e00ULL, +}; + +/* key constants */ +#define CAMELLIA_SIGMA1L (0xA09E667FL) +#define CAMELLIA_SIGMA1R (0x3BCC908BL) +#define CAMELLIA_SIGMA2L (0xB67AE858L) +#define CAMELLIA_SIGMA2R (0x4CAA73B2L) +#define CAMELLIA_SIGMA3L (0xC6EF372FL) +#define CAMELLIA_SIGMA3R (0xE94F82BEL) +#define CAMELLIA_SIGMA4L (0x54FF53A5L) +#define CAMELLIA_SIGMA4R (0xF1D36F1CL) +#define CAMELLIA_SIGMA5L (0x10E527FAL) +#define CAMELLIA_SIGMA5R (0xDE682D1DL) +#define CAMELLIA_SIGMA6L (0xB05688C2L) +#define CAMELLIA_SIGMA6R (0xB3E6C1FDL) + +/* macros */ +#define ROLDQ(l, r, bits) ({ \ + u64 t = l; \ + l = (l << bits) | (r >> (64 - bits)); \ + r = (r << bits) | (t >> (64 - bits)); \ +}) + +#define CAMELLIA_F(x, kl, kr, y) ({ \ + u64 ii = x ^ (((u64)kl << 32) | kr); \ + y = camellia_sp11101110[(uint8_t)ii]; \ + y ^= camellia_sp44044404[(uint8_t)(ii >> 8)]; \ + ii >>= 16; \ + y ^= camellia_sp30333033[(uint8_t)ii]; \ + y ^= camellia_sp02220222[(uint8_t)(ii >> 8)]; \ + ii >>= 16; \ + y ^= camellia_sp00444404[(uint8_t)ii]; \ + y ^= camellia_sp03303033[(uint8_t)(ii >> 8)]; \ + ii >>= 16; \ + y ^= camellia_sp22000222[(uint8_t)ii]; \ + y ^= camellia_sp10011110[(uint8_t)(ii >> 8)]; \ + y = ror64(y, 32); \ +}) + +#define SET_SUBKEY_LR(INDEX, sRL) (subkey[(INDEX)] = ror64((sRL), 32)) + +static void camellia_setup_tail(u64 *subkey, u64 *subRL, int max) +{ + u64 kw4, tt; + u32 dw, tl, tr; + + /* absorb kw2 to other subkeys */ + /* round 2 */ + subRL[3] ^= subRL[1]; + /* round 4 */ + subRL[5] ^= subRL[1]; + /* round 6 */ + subRL[7] ^= subRL[1]; + + subRL[1] ^= (subRL[1] & ~subRL[9]) << 32; + /* modified for FLinv(kl2) */ + dw = (subRL[1] & subRL[9]) >> 32; + subRL[1] ^= rol32(dw, 1); + + /* round 8 */ + subRL[11] ^= subRL[1]; + /* round 10 */ + subRL[13] ^= subRL[1]; + /* round 12 */ + subRL[15] ^= subRL[1]; + + subRL[1] ^= (subRL[1] & ~subRL[17]) << 32; + /* modified for FLinv(kl4) */ + dw = (subRL[1] & subRL[17]) >> 32; + subRL[1] ^= rol32(dw, 1); + + /* round 14 */ + subRL[19] ^= subRL[1]; + /* round 16 */ + subRL[21] ^= subRL[1]; + /* round 18 */ + subRL[23] ^= subRL[1]; + + if (max == 24) { + /* kw3 */ + subRL[24] ^= subRL[1]; + + /* absorb kw4 to other subkeys */ + kw4 = subRL[25]; + } else { + subRL[1] ^= (subRL[1] & ~subRL[25]) << 32; + /* modified for FLinv(kl6) */ + dw = (subRL[1] & subRL[25]) >> 32; + subRL[1] ^= rol32(dw, 1); + + /* round 20 */ + subRL[27] ^= subRL[1]; + /* round 22 */ + subRL[29] ^= subRL[1]; + /* round 24 */ + subRL[31] ^= subRL[1]; + /* kw3 */ + subRL[32] ^= subRL[1]; + + /* absorb kw4 to other subkeys */ + kw4 = subRL[33]; + /* round 23 */ + subRL[30] ^= kw4; + /* round 21 */ + subRL[28] ^= kw4; + /* round 19 */ + subRL[26] ^= kw4; + + kw4 ^= (kw4 & ~subRL[24]) << 32; + /* modified for FL(kl5) */ + dw = (kw4 & subRL[24]) >> 32; + kw4 ^= rol32(dw, 1); + } + + /* round 17 */ + subRL[22] ^= kw4; + /* round 15 */ + subRL[20] ^= kw4; + /* round 13 */ + subRL[18] ^= kw4; + + kw4 ^= (kw4 & ~subRL[16]) << 32; + /* modified for FL(kl3) */ + dw = (kw4 & subRL[16]) >> 32; + kw4 ^= rol32(dw, 1); + + /* round 11 */ + subRL[14] ^= kw4; + /* round 9 */ + subRL[12] ^= kw4; + /* round 7 */ + subRL[10] ^= kw4; + + kw4 ^= (kw4 & ~subRL[8]) << 32; + /* modified for FL(kl1) */ + dw = (kw4 & subRL[8]) >> 32; + kw4 ^= rol32(dw, 1); + + /* round 5 */ + subRL[6] ^= kw4; + /* round 3 */ + subRL[4] ^= kw4; + /* round 1 */ + subRL[2] ^= kw4; + /* kw1 */ + subRL[0] ^= kw4; + + /* key XOR is end of F-function */ + SET_SUBKEY_LR(0, subRL[0] ^ subRL[2]); /* kw1 */ + SET_SUBKEY_LR(2, subRL[3]); /* round 1 */ + SET_SUBKEY_LR(3, subRL[2] ^ subRL[4]); /* round 2 */ + SET_SUBKEY_LR(4, subRL[3] ^ subRL[5]); /* round 3 */ + SET_SUBKEY_LR(5, subRL[4] ^ subRL[6]); /* round 4 */ + SET_SUBKEY_LR(6, subRL[5] ^ subRL[7]); /* round 5 */ + + tl = (subRL[10] >> 32) ^ (subRL[10] & ~subRL[8]); + dw = tl & (subRL[8] >> 32); /* FL(kl1) */ + tr = subRL[10] ^ rol32(dw, 1); + tt = (tr | ((u64)tl << 32)); + + SET_SUBKEY_LR(7, subRL[6] ^ tt); /* round 6 */ + SET_SUBKEY_LR(8, subRL[8]); /* FL(kl1) */ + SET_SUBKEY_LR(9, subRL[9]); /* FLinv(kl2) */ + + tl = (subRL[7] >> 32) ^ (subRL[7] & ~subRL[9]); + dw = tl & (subRL[9] >> 32); /* FLinv(kl2) */ + tr = subRL[7] ^ rol32(dw, 1); + tt = (tr | ((u64)tl << 32)); + + SET_SUBKEY_LR(10, subRL[11] ^ tt); /* round 7 */ + SET_SUBKEY_LR(11, subRL[10] ^ subRL[12]); /* round 8 */ + SET_SUBKEY_LR(12, subRL[11] ^ subRL[13]); /* round 9 */ + SET_SUBKEY_LR(13, subRL[12] ^ subRL[14]); /* round 10 */ + SET_SUBKEY_LR(14, subRL[13] ^ subRL[15]); /* round 11 */ + + tl = (subRL[18] >> 32) ^ (subRL[18] & ~subRL[16]); + dw = tl & (subRL[16] >> 32); /* FL(kl3) */ + tr = subRL[18] ^ rol32(dw, 1); + tt = (tr | ((u64)tl << 32)); + + SET_SUBKEY_LR(15, subRL[14] ^ tt); /* round 12 */ + SET_SUBKEY_LR(16, subRL[16]); /* FL(kl3) */ + SET_SUBKEY_LR(17, subRL[17]); /* FLinv(kl4) */ + + tl = (subRL[15] >> 32) ^ (subRL[15] & ~subRL[17]); + dw = tl & (subRL[17] >> 32); /* FLinv(kl4) */ + tr = subRL[15] ^ rol32(dw, 1); + tt = (tr | ((u64)tl << 32)); + + SET_SUBKEY_LR(18, subRL[19] ^ tt); /* round 13 */ + SET_SUBKEY_LR(19, subRL[18] ^ subRL[20]); /* round 14 */ + SET_SUBKEY_LR(20, subRL[19] ^ subRL[21]); /* round 15 */ + SET_SUBKEY_LR(21, subRL[20] ^ subRL[22]); /* round 16 */ + SET_SUBKEY_LR(22, subRL[21] ^ subRL[23]); /* round 17 */ + + if (max == 24) { + SET_SUBKEY_LR(23, subRL[22]); /* round 18 */ + SET_SUBKEY_LR(24, subRL[24] ^ subRL[23]); /* kw3 */ + } else { + tl = (subRL[26] >> 32) ^ (subRL[26] & ~subRL[24]); + dw = tl & (subRL[24] >> 32); /* FL(kl5) */ + tr = subRL[26] ^ rol32(dw, 1); + tt = (tr | ((u64)tl << 32)); + + SET_SUBKEY_LR(23, subRL[22] ^ tt); /* round 18 */ + SET_SUBKEY_LR(24, subRL[24]); /* FL(kl5) */ + SET_SUBKEY_LR(25, subRL[25]); /* FLinv(kl6) */ + + tl = (subRL[23] >> 32) ^ (subRL[23] & ~subRL[25]); + dw = tl & (subRL[25] >> 32); /* FLinv(kl6) */ + tr = subRL[23] ^ rol32(dw, 1); + tt = (tr | ((u64)tl << 32)); + + SET_SUBKEY_LR(26, subRL[27] ^ tt); /* round 19 */ + SET_SUBKEY_LR(27, subRL[26] ^ subRL[28]); /* round 20 */ + SET_SUBKEY_LR(28, subRL[27] ^ subRL[29]); /* round 21 */ + SET_SUBKEY_LR(29, subRL[28] ^ subRL[30]); /* round 22 */ + SET_SUBKEY_LR(30, subRL[29] ^ subRL[31]); /* round 23 */ + SET_SUBKEY_LR(31, subRL[30]); /* round 24 */ + SET_SUBKEY_LR(32, subRL[32] ^ subRL[31]); /* kw3 */ + } +} + +static void camellia_setup128(const unsigned char *key, u64 *subkey) +{ + u64 kl, kr, ww; + u64 subRL[26]; + + /** + * k == kl || kr (|| is concatenation) + */ + kl = get_unaligned_be64(key); + kr = get_unaligned_be64(key + 8); + + /* generate KL dependent subkeys */ + /* kw1 */ + subRL[0] = kl; + /* kw2 */ + subRL[1] = kr; + + /* rotation left shift 15bit */ + ROLDQ(kl, kr, 15); + + /* k3 */ + subRL[4] = kl; + /* k4 */ + subRL[5] = kr; + + /* rotation left shift 15+30bit */ + ROLDQ(kl, kr, 30); + + /* k7 */ + subRL[10] = kl; + /* k8 */ + subRL[11] = kr; + + /* rotation left shift 15+30+15bit */ + ROLDQ(kl, kr, 15); + + /* k10 */ + subRL[13] = kr; + /* rotation left shift 15+30+15+17 bit */ + ROLDQ(kl, kr, 17); + + /* kl3 */ + subRL[16] = kl; + /* kl4 */ + subRL[17] = kr; + + /* rotation left shift 15+30+15+17+17 bit */ + ROLDQ(kl, kr, 17); + + /* k13 */ + subRL[18] = kl; + /* k14 */ + subRL[19] = kr; + + /* rotation left shift 15+30+15+17+17+17 bit */ + ROLDQ(kl, kr, 17); + + /* k17 */ + subRL[22] = kl; + /* k18 */ + subRL[23] = kr; + + /* generate KA */ + kl = subRL[0]; + kr = subRL[1]; + CAMELLIA_F(kl, CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, ww); + kr ^= ww; + CAMELLIA_F(kr, CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, kl); + + /* current status == (kll, klr, w0, w1) */ + CAMELLIA_F(kl, CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, kr); + kr ^= ww; + CAMELLIA_F(kr, CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, ww); + kl ^= ww; + + /* generate KA dependent subkeys */ + /* k1, k2 */ + subRL[2] = kl; + subRL[3] = kr; + ROLDQ(kl, kr, 15); + /* k5,k6 */ + subRL[6] = kl; + subRL[7] = kr; + ROLDQ(kl, kr, 15); + /* kl1, kl2 */ + subRL[8] = kl; + subRL[9] = kr; + ROLDQ(kl, kr, 15); + /* k9 */ + subRL[12] = kl; + ROLDQ(kl, kr, 15); + /* k11, k12 */ + subRL[14] = kl; + subRL[15] = kr; + ROLDQ(kl, kr, 34); + /* k15, k16 */ + subRL[20] = kl; + subRL[21] = kr; + ROLDQ(kl, kr, 17); + /* kw3, kw4 */ + subRL[24] = kl; + subRL[25] = kr; + + camellia_setup_tail(subkey, subRL, 24); +} + +static void camellia_setup256(const unsigned char *key, u64 *subkey) +{ + u64 kl, kr; /* left half of key */ + u64 krl, krr; /* right half of key */ + u64 ww; /* temporary variables */ + u64 subRL[34]; + + /** + * key = (kl || kr || krl || krr) (|| is concatenation) + */ + kl = get_unaligned_be64(key); + kr = get_unaligned_be64(key + 8); + krl = get_unaligned_be64(key + 16); + krr = get_unaligned_be64(key + 24); + + /* generate KL dependent subkeys */ + /* kw1 */ + subRL[0] = kl; + /* kw2 */ + subRL[1] = kr; + ROLDQ(kl, kr, 45); + /* k9 */ + subRL[12] = kl; + /* k10 */ + subRL[13] = kr; + ROLDQ(kl, kr, 15); + /* kl3 */ + subRL[16] = kl; + /* kl4 */ + subRL[17] = kr; + ROLDQ(kl, kr, 17); + /* k17 */ + subRL[22] = kl; + /* k18 */ + subRL[23] = kr; + ROLDQ(kl, kr, 34); + /* k23 */ + subRL[30] = kl; + /* k24 */ + subRL[31] = kr; + + /* generate KR dependent subkeys */ + ROLDQ(krl, krr, 15); + /* k3 */ + subRL[4] = krl; + /* k4 */ + subRL[5] = krr; + ROLDQ(krl, krr, 15); + /* kl1 */ + subRL[8] = krl; + /* kl2 */ + subRL[9] = krr; + ROLDQ(krl, krr, 30); + /* k13 */ + subRL[18] = krl; + /* k14 */ + subRL[19] = krr; + ROLDQ(krl, krr, 34); + /* k19 */ + subRL[26] = krl; + /* k20 */ + subRL[27] = krr; + ROLDQ(krl, krr, 34); + + /* generate KA */ + kl = subRL[0] ^ krl; + kr = subRL[1] ^ krr; + + CAMELLIA_F(kl, CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, ww); + kr ^= ww; + CAMELLIA_F(kr, CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, kl); + kl ^= krl; + CAMELLIA_F(kl, CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, kr); + kr ^= ww ^ krr; + CAMELLIA_F(kr, CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, ww); + kl ^= ww; + + /* generate KB */ + krl ^= kl; + krr ^= kr; + CAMELLIA_F(krl, CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R, ww); + krr ^= ww; + CAMELLIA_F(krr, CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R, ww); + krl ^= ww; + + /* generate KA dependent subkeys */ + ROLDQ(kl, kr, 15); + /* k5 */ + subRL[6] = kl; + /* k6 */ + subRL[7] = kr; + ROLDQ(kl, kr, 30); + /* k11 */ + subRL[14] = kl; + /* k12 */ + subRL[15] = kr; + /* rotation left shift 32bit */ + ROLDQ(kl, kr, 32); + /* kl5 */ + subRL[24] = kl; + /* kl6 */ + subRL[25] = kr; + /* rotation left shift 17 from k11,k12 -> k21,k22 */ + ROLDQ(kl, kr, 17); + /* k21 */ + subRL[28] = kl; + /* k22 */ + subRL[29] = kr; + + /* generate KB dependent subkeys */ + /* k1 */ + subRL[2] = krl; + /* k2 */ + subRL[3] = krr; + ROLDQ(krl, krr, 30); + /* k7 */ + subRL[10] = krl; + /* k8 */ + subRL[11] = krr; + ROLDQ(krl, krr, 30); + /* k15 */ + subRL[20] = krl; + /* k16 */ + subRL[21] = krr; + ROLDQ(krl, krr, 51); + /* kw3 */ + subRL[32] = krl; + /* kw4 */ + subRL[33] = krr; + + camellia_setup_tail(subkey, subRL, 32); +} + +static void camellia_setup192(const unsigned char *key, u64 *subkey) +{ + unsigned char kk[32]; + u64 krl, krr; + + memcpy(kk, key, 24); + memcpy((unsigned char *)&krl, key+16, 8); + krr = ~krl; + memcpy(kk+24, (unsigned char *)&krr, 8); + camellia_setup256(kk, subkey); +} + +int __camellia_setkey(struct camellia_ctx *cctx, const unsigned char *key, + unsigned int key_len, u32 *flags) +{ + if (key_len != 16 && key_len != 24 && key_len != 32) { + *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; + return -EINVAL; + } + + cctx->key_length = key_len; + + switch (key_len) { + case 16: + camellia_setup128(key, cctx->key_table); + break; + case 24: + camellia_setup192(key, cctx->key_table); + break; + case 32: + camellia_setup256(key, cctx->key_table); + break; + } + + return 0; +} +EXPORT_SYMBOL_GPL(__camellia_setkey); + +static int camellia_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int key_len) +{ + return __camellia_setkey(crypto_tfm_ctx(tfm), key, key_len, + &tfm->crt_flags); +} + +static int camellia_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key, + unsigned int key_len) +{ + return camellia_setkey(&tfm->base, key, key_len); +} + +void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src) +{ + u128 iv = *src; + + camellia_dec_blk_2way(ctx, (u8 *)dst, (u8 *)src); + + u128_xor(&dst[1], &dst[1], &iv); +} +EXPORT_SYMBOL_GPL(camellia_decrypt_cbc_2way); + +void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + be128 ctrblk; + + if (dst != src) + *dst = *src; + + le128_to_be128(&ctrblk, iv); + le128_inc(iv); + + camellia_enc_blk_xor(ctx, (u8 *)dst, (u8 *)&ctrblk); +} +EXPORT_SYMBOL_GPL(camellia_crypt_ctr); + +void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + be128 ctrblks[2]; + + if (dst != src) { + dst[0] = src[0]; + dst[1] = src[1]; + } + + le128_to_be128(&ctrblks[0], iv); + le128_inc(iv); + le128_to_be128(&ctrblks[1], iv); + le128_inc(iv); + + camellia_enc_blk_xor_2way(ctx, (u8 *)dst, (u8 *)ctrblks); +} +EXPORT_SYMBOL_GPL(camellia_crypt_ctr_2way); + +static const struct common_glue_ctx camellia_enc = { + .num_funcs = 2, + .fpu_blocks_limit = -1, + + .funcs = { { + .num_blocks = 2, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) } + } } +}; + +static const struct common_glue_ctx camellia_ctr = { + .num_funcs = 2, + .fpu_blocks_limit = -1, + + .funcs = { { + .num_blocks = 2, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) } + } } +}; + +static const struct common_glue_ctx camellia_dec = { + .num_funcs = 2, + .fpu_blocks_limit = -1, + + .funcs = { { + .num_blocks = 2, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) } + } } +}; + +static const struct common_glue_ctx camellia_dec_cbc = { + .num_funcs = 2, + .fpu_blocks_limit = -1, + + .funcs = { { + .num_blocks = 2, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) } + } } +}; + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&camellia_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&camellia_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(camellia_enc_blk), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&camellia_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&camellia_ctr, req); +} + +static struct crypto_alg camellia_cipher_alg = { + .cra_name = "camellia", + .cra_driver_name = "camellia-asm", + .cra_priority = 200, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = CAMELLIA_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct camellia_ctx), + .cra_alignmask = 0, + .cra_module = THIS_MODULE, + .cra_u = { + .cipher = { + .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE, + .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE, + .cia_setkey = camellia_setkey, + .cia_encrypt = camellia_encrypt, + .cia_decrypt = camellia_decrypt + } + } +}; + +static struct skcipher_alg camellia_skcipher_algs[] = { + { + .base.cra_name = "ecb(camellia)", + .base.cra_driver_name = "ecb-camellia-asm", + .base.cra_priority = 300, + .base.cra_blocksize = CAMELLIA_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .setkey = camellia_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "cbc(camellia)", + .base.cra_driver_name = "cbc-camellia-asm", + .base.cra_priority = 300, + .base.cra_blocksize = CAMELLIA_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .ivsize = CAMELLIA_BLOCK_SIZE, + .setkey = camellia_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "ctr(camellia)", + .base.cra_driver_name = "ctr-camellia-asm", + .base.cra_priority = 300, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct camellia_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAMELLIA_MIN_KEY_SIZE, + .max_keysize = CAMELLIA_MAX_KEY_SIZE, + .ivsize = CAMELLIA_BLOCK_SIZE, + .chunksize = CAMELLIA_BLOCK_SIZE, + .setkey = camellia_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + } +}; + +static bool is_blacklisted_cpu(void) +{ + if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) + return false; + + if (boot_cpu_data.x86 == 0x0f) { + /* + * On Pentium 4, camellia-asm is slower than original assembler + * implementation because excessive uses of 64bit rotate and + * left-shifts (which are really slow on P4) needed to store and + * handle 128bit block in two 64bit registers. + */ + return true; + } + + return false; +} + +static int force; +module_param(force, int, 0); +MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist"); + +static int __init init(void) +{ + int err; + + if (!force && is_blacklisted_cpu()) { + printk(KERN_INFO + "camellia-x86_64: performance on this CPU " + "would be suboptimal: disabling " + "camellia-x86_64.\n"); + return -ENODEV; + } + + err = crypto_register_alg(&camellia_cipher_alg); + if (err) + return err; + + err = crypto_register_skciphers(camellia_skcipher_algs, + ARRAY_SIZE(camellia_skcipher_algs)); + if (err) + crypto_unregister_alg(&camellia_cipher_alg); + + return err; +} + +static void __exit fini(void) +{ + crypto_unregister_alg(&camellia_cipher_alg); + crypto_unregister_skciphers(camellia_skcipher_algs, + ARRAY_SIZE(camellia_skcipher_algs)); +} + +module_init(init); +module_exit(fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Camellia Cipher Algorithm, asm optimized"); +MODULE_ALIAS_CRYPTO("camellia"); +MODULE_ALIAS_CRYPTO("camellia-asm"); diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S new file mode 100644 index 000000000..86107c961 --- /dev/null +++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S @@ -0,0 +1,578 @@ +/* + * Cast5 Cipher 16-way parallel algorithm (AVX/x86_64) + * + * Copyright (C) 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * Copyright © 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> +#include <asm/frame.h> + +.file "cast5-avx-x86_64-asm_64.S" + +.extern cast_s1 +.extern cast_s2 +.extern cast_s3 +.extern cast_s4 + +/* structure of crypto context */ +#define km 0 +#define kr (16*4) +#define rr ((16*4)+16) + +/* s-boxes */ +#define s1 cast_s1 +#define s2 cast_s2 +#define s3 cast_s3 +#define s4 cast_s4 + +/********************************************************************** + 16-way AVX cast5 + **********************************************************************/ +#define CTX %r15 + +#define RL1 %xmm0 +#define RR1 %xmm1 +#define RL2 %xmm2 +#define RR2 %xmm3 +#define RL3 %xmm4 +#define RR3 %xmm5 +#define RL4 %xmm6 +#define RR4 %xmm7 + +#define RX %xmm8 + +#define RKM %xmm9 +#define RKR %xmm10 +#define RKRF %xmm11 +#define RKRR %xmm12 + +#define R32 %xmm13 +#define R1ST %xmm14 + +#define RTMP %xmm15 + +#define RID1 %rdi +#define RID1d %edi +#define RID2 %rsi +#define RID2d %esi + +#define RGI1 %rdx +#define RGI1bl %dl +#define RGI1bh %dh +#define RGI2 %rcx +#define RGI2bl %cl +#define RGI2bh %ch + +#define RGI3 %rax +#define RGI3bl %al +#define RGI3bh %ah +#define RGI4 %rbx +#define RGI4bl %bl +#define RGI4bh %bh + +#define RFS1 %r8 +#define RFS1d %r8d +#define RFS2 %r9 +#define RFS2d %r9d +#define RFS3 %r10 +#define RFS3d %r10d + + +#define lookup_32bit(src, dst, op1, op2, op3, interleave_op, il_reg) \ + movzbl src ## bh, RID1d; \ + movzbl src ## bl, RID2d; \ + shrq $16, src; \ + movl s1(, RID1, 4), dst ## d; \ + op1 s2(, RID2, 4), dst ## d; \ + movzbl src ## bh, RID1d; \ + movzbl src ## bl, RID2d; \ + interleave_op(il_reg); \ + op2 s3(, RID1, 4), dst ## d; \ + op3 s4(, RID2, 4), dst ## d; + +#define dummy(d) /* do nothing */ + +#define shr_next(reg) \ + shrq $16, reg; + +#define F_head(a, x, gi1, gi2, op0) \ + op0 a, RKM, x; \ + vpslld RKRF, x, RTMP; \ + vpsrld RKRR, x, x; \ + vpor RTMP, x, x; \ + \ + vmovq x, gi1; \ + vpextrq $1, x, gi2; + +#define F_tail(a, x, gi1, gi2, op1, op2, op3) \ + lookup_32bit(##gi1, RFS1, op1, op2, op3, shr_next, ##gi1); \ + lookup_32bit(##gi2, RFS3, op1, op2, op3, shr_next, ##gi2); \ + \ + lookup_32bit(##gi1, RFS2, op1, op2, op3, dummy, none); \ + shlq $32, RFS2; \ + orq RFS1, RFS2; \ + lookup_32bit(##gi2, RFS1, op1, op2, op3, dummy, none); \ + shlq $32, RFS1; \ + orq RFS1, RFS3; \ + \ + vmovq RFS2, x; \ + vpinsrq $1, RFS3, x, x; + +#define F_2(a1, b1, a2, b2, op0, op1, op2, op3) \ + F_head(b1, RX, RGI1, RGI2, op0); \ + F_head(b2, RX, RGI3, RGI4, op0); \ + \ + F_tail(b1, RX, RGI1, RGI2, op1, op2, op3); \ + F_tail(b2, RTMP, RGI3, RGI4, op1, op2, op3); \ + \ + vpxor a1, RX, a1; \ + vpxor a2, RTMP, a2; + +#define F1_2(a1, b1, a2, b2) \ + F_2(a1, b1, a2, b2, vpaddd, xorl, subl, addl) +#define F2_2(a1, b1, a2, b2) \ + F_2(a1, b1, a2, b2, vpxor, subl, addl, xorl) +#define F3_2(a1, b1, a2, b2) \ + F_2(a1, b1, a2, b2, vpsubd, addl, xorl, subl) + +#define subround(a1, b1, a2, b2, f) \ + F ## f ## _2(a1, b1, a2, b2); + +#define round(l, r, n, f) \ + vbroadcastss (km+(4*n))(CTX), RKM; \ + vpand R1ST, RKR, RKRF; \ + vpsubq RKRF, R32, RKRR; \ + vpsrldq $1, RKR, RKR; \ + subround(l ## 1, r ## 1, l ## 2, r ## 2, f); \ + subround(l ## 3, r ## 3, l ## 4, r ## 4, f); + +#define enc_preload_rkr() \ + vbroadcastss .L16_mask, RKR; \ + /* add 16-bit rotation to key rotations (mod 32) */ \ + vpxor kr(CTX), RKR, RKR; + +#define dec_preload_rkr() \ + vbroadcastss .L16_mask, RKR; \ + /* add 16-bit rotation to key rotations (mod 32) */ \ + vpxor kr(CTX), RKR, RKR; \ + vpshufb .Lbswap128_mask, RKR, RKR; + +#define transpose_2x4(x0, x1, t0, t1) \ + vpunpckldq x1, x0, t0; \ + vpunpckhdq x1, x0, t1; \ + \ + vpunpcklqdq t1, t0, x0; \ + vpunpckhqdq t1, t0, x1; + +#define inpack_blocks(x0, x1, t0, t1, rmask) \ + vpshufb rmask, x0, x0; \ + vpshufb rmask, x1, x1; \ + \ + transpose_2x4(x0, x1, t0, t1) + +#define outunpack_blocks(x0, x1, t0, t1, rmask) \ + transpose_2x4(x0, x1, t0, t1) \ + \ + vpshufb rmask, x0, x0; \ + vpshufb rmask, x1, x1; + +.section .rodata.cst16.bswap_mask, "aM", @progbits, 16 +.align 16 +.Lbswap_mask: + .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 +.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16 +.align 16 +.Lbswap128_mask: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 +.section .rodata.cst16.bswap_iv_mask, "aM", @progbits, 16 +.align 16 +.Lbswap_iv_mask: + .byte 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0 + +.section .rodata.cst4.16_mask, "aM", @progbits, 4 +.align 4 +.L16_mask: + .byte 16, 16, 16, 16 +.section .rodata.cst4.32_mask, "aM", @progbits, 4 +.align 4 +.L32_mask: + .byte 32, 0, 0, 0 +.section .rodata.cst4.first_mask, "aM", @progbits, 4 +.align 4 +.Lfirst_mask: + .byte 0x1f, 0, 0, 0 + +.text + +.align 16 +__cast5_enc_blk16: + /* input: + * %rdi: ctx + * RL1: blocks 1 and 2 + * RR1: blocks 3 and 4 + * RL2: blocks 5 and 6 + * RR2: blocks 7 and 8 + * RL3: blocks 9 and 10 + * RR3: blocks 11 and 12 + * RL4: blocks 13 and 14 + * RR4: blocks 15 and 16 + * output: + * RL1: encrypted blocks 1 and 2 + * RR1: encrypted blocks 3 and 4 + * RL2: encrypted blocks 5 and 6 + * RR2: encrypted blocks 7 and 8 + * RL3: encrypted blocks 9 and 10 + * RR3: encrypted blocks 11 and 12 + * RL4: encrypted blocks 13 and 14 + * RR4: encrypted blocks 15 and 16 + */ + + pushq %r15; + pushq %rbx; + + movq %rdi, CTX; + + vmovdqa .Lbswap_mask, RKM; + vmovd .Lfirst_mask, R1ST; + vmovd .L32_mask, R32; + enc_preload_rkr(); + + inpack_blocks(RL1, RR1, RTMP, RX, RKM); + inpack_blocks(RL2, RR2, RTMP, RX, RKM); + inpack_blocks(RL3, RR3, RTMP, RX, RKM); + inpack_blocks(RL4, RR4, RTMP, RX, RKM); + + round(RL, RR, 0, 1); + round(RR, RL, 1, 2); + round(RL, RR, 2, 3); + round(RR, RL, 3, 1); + round(RL, RR, 4, 2); + round(RR, RL, 5, 3); + round(RL, RR, 6, 1); + round(RR, RL, 7, 2); + round(RL, RR, 8, 3); + round(RR, RL, 9, 1); + round(RL, RR, 10, 2); + round(RR, RL, 11, 3); + + movzbl rr(CTX), %eax; + testl %eax, %eax; + jnz .L__skip_enc; + + round(RL, RR, 12, 1); + round(RR, RL, 13, 2); + round(RL, RR, 14, 3); + round(RR, RL, 15, 1); + +.L__skip_enc: + popq %rbx; + popq %r15; + + vmovdqa .Lbswap_mask, RKM; + + outunpack_blocks(RR1, RL1, RTMP, RX, RKM); + outunpack_blocks(RR2, RL2, RTMP, RX, RKM); + outunpack_blocks(RR3, RL3, RTMP, RX, RKM); + outunpack_blocks(RR4, RL4, RTMP, RX, RKM); + + ret; +ENDPROC(__cast5_enc_blk16) + +.align 16 +__cast5_dec_blk16: + /* input: + * %rdi: ctx + * RL1: encrypted blocks 1 and 2 + * RR1: encrypted blocks 3 and 4 + * RL2: encrypted blocks 5 and 6 + * RR2: encrypted blocks 7 and 8 + * RL3: encrypted blocks 9 and 10 + * RR3: encrypted blocks 11 and 12 + * RL4: encrypted blocks 13 and 14 + * RR4: encrypted blocks 15 and 16 + * output: + * RL1: decrypted blocks 1 and 2 + * RR1: decrypted blocks 3 and 4 + * RL2: decrypted blocks 5 and 6 + * RR2: decrypted blocks 7 and 8 + * RL3: decrypted blocks 9 and 10 + * RR3: decrypted blocks 11 and 12 + * RL4: decrypted blocks 13 and 14 + * RR4: decrypted blocks 15 and 16 + */ + + pushq %r15; + pushq %rbx; + + movq %rdi, CTX; + + vmovdqa .Lbswap_mask, RKM; + vmovd .Lfirst_mask, R1ST; + vmovd .L32_mask, R32; + dec_preload_rkr(); + + inpack_blocks(RL1, RR1, RTMP, RX, RKM); + inpack_blocks(RL2, RR2, RTMP, RX, RKM); + inpack_blocks(RL3, RR3, RTMP, RX, RKM); + inpack_blocks(RL4, RR4, RTMP, RX, RKM); + + movzbl rr(CTX), %eax; + testl %eax, %eax; + jnz .L__skip_dec; + + round(RL, RR, 15, 1); + round(RR, RL, 14, 3); + round(RL, RR, 13, 2); + round(RR, RL, 12, 1); + +.L__dec_tail: + round(RL, RR, 11, 3); + round(RR, RL, 10, 2); + round(RL, RR, 9, 1); + round(RR, RL, 8, 3); + round(RL, RR, 7, 2); + round(RR, RL, 6, 1); + round(RL, RR, 5, 3); + round(RR, RL, 4, 2); + round(RL, RR, 3, 1); + round(RR, RL, 2, 3); + round(RL, RR, 1, 2); + round(RR, RL, 0, 1); + + vmovdqa .Lbswap_mask, RKM; + popq %rbx; + popq %r15; + + outunpack_blocks(RR1, RL1, RTMP, RX, RKM); + outunpack_blocks(RR2, RL2, RTMP, RX, RKM); + outunpack_blocks(RR3, RL3, RTMP, RX, RKM); + outunpack_blocks(RR4, RL4, RTMP, RX, RKM); + + ret; + +.L__skip_dec: + vpsrldq $4, RKR, RKR; + jmp .L__dec_tail; +ENDPROC(__cast5_dec_blk16) + +ENTRY(cast5_ecb_enc_16way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + pushq %r15; + + movq %rdi, CTX; + movq %rsi, %r11; + + vmovdqu (0*4*4)(%rdx), RL1; + vmovdqu (1*4*4)(%rdx), RR1; + vmovdqu (2*4*4)(%rdx), RL2; + vmovdqu (3*4*4)(%rdx), RR2; + vmovdqu (4*4*4)(%rdx), RL3; + vmovdqu (5*4*4)(%rdx), RR3; + vmovdqu (6*4*4)(%rdx), RL4; + vmovdqu (7*4*4)(%rdx), RR4; + + call __cast5_enc_blk16; + + vmovdqu RR1, (0*4*4)(%r11); + vmovdqu RL1, (1*4*4)(%r11); + vmovdqu RR2, (2*4*4)(%r11); + vmovdqu RL2, (3*4*4)(%r11); + vmovdqu RR3, (4*4*4)(%r11); + vmovdqu RL3, (5*4*4)(%r11); + vmovdqu RR4, (6*4*4)(%r11); + vmovdqu RL4, (7*4*4)(%r11); + + popq %r15; + FRAME_END + ret; +ENDPROC(cast5_ecb_enc_16way) + +ENTRY(cast5_ecb_dec_16way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + */ + + FRAME_BEGIN + pushq %r15; + + movq %rdi, CTX; + movq %rsi, %r11; + + vmovdqu (0*4*4)(%rdx), RL1; + vmovdqu (1*4*4)(%rdx), RR1; + vmovdqu (2*4*4)(%rdx), RL2; + vmovdqu (3*4*4)(%rdx), RR2; + vmovdqu (4*4*4)(%rdx), RL3; + vmovdqu (5*4*4)(%rdx), RR3; + vmovdqu (6*4*4)(%rdx), RL4; + vmovdqu (7*4*4)(%rdx), RR4; + + call __cast5_dec_blk16; + + vmovdqu RR1, (0*4*4)(%r11); + vmovdqu RL1, (1*4*4)(%r11); + vmovdqu RR2, (2*4*4)(%r11); + vmovdqu RL2, (3*4*4)(%r11); + vmovdqu RR3, (4*4*4)(%r11); + vmovdqu RL3, (5*4*4)(%r11); + vmovdqu RR4, (6*4*4)(%r11); + vmovdqu RL4, (7*4*4)(%r11); + + popq %r15; + FRAME_END + ret; +ENDPROC(cast5_ecb_dec_16way) + +ENTRY(cast5_cbc_dec_16way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + pushq %r12; + pushq %r15; + + movq %rdi, CTX; + movq %rsi, %r11; + movq %rdx, %r12; + + vmovdqu (0*16)(%rdx), RL1; + vmovdqu (1*16)(%rdx), RR1; + vmovdqu (2*16)(%rdx), RL2; + vmovdqu (3*16)(%rdx), RR2; + vmovdqu (4*16)(%rdx), RL3; + vmovdqu (5*16)(%rdx), RR3; + vmovdqu (6*16)(%rdx), RL4; + vmovdqu (7*16)(%rdx), RR4; + + call __cast5_dec_blk16; + + /* xor with src */ + vmovq (%r12), RX; + vpshufd $0x4f, RX, RX; + vpxor RX, RR1, RR1; + vpxor 0*16+8(%r12), RL1, RL1; + vpxor 1*16+8(%r12), RR2, RR2; + vpxor 2*16+8(%r12), RL2, RL2; + vpxor 3*16+8(%r12), RR3, RR3; + vpxor 4*16+8(%r12), RL3, RL3; + vpxor 5*16+8(%r12), RR4, RR4; + vpxor 6*16+8(%r12), RL4, RL4; + + vmovdqu RR1, (0*16)(%r11); + vmovdqu RL1, (1*16)(%r11); + vmovdqu RR2, (2*16)(%r11); + vmovdqu RL2, (3*16)(%r11); + vmovdqu RR3, (4*16)(%r11); + vmovdqu RL3, (5*16)(%r11); + vmovdqu RR4, (6*16)(%r11); + vmovdqu RL4, (7*16)(%r11); + + popq %r15; + popq %r12; + FRAME_END + ret; +ENDPROC(cast5_cbc_dec_16way) + +ENTRY(cast5_ctr_16way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + * %rcx: iv (big endian, 64bit) + */ + FRAME_BEGIN + pushq %r12; + pushq %r15; + + movq %rdi, CTX; + movq %rsi, %r11; + movq %rdx, %r12; + + vpcmpeqd RTMP, RTMP, RTMP; + vpsrldq $8, RTMP, RTMP; /* low: -1, high: 0 */ + + vpcmpeqd RKR, RKR, RKR; + vpaddq RKR, RKR, RKR; /* low: -2, high: -2 */ + vmovdqa .Lbswap_iv_mask, R1ST; + vmovdqa .Lbswap128_mask, RKM; + + /* load IV and byteswap */ + vmovq (%rcx), RX; + vpshufb R1ST, RX, RX; + + /* construct IVs */ + vpsubq RTMP, RX, RX; /* le: IV1, IV0 */ + vpshufb RKM, RX, RL1; /* be: IV0, IV1 */ + vpsubq RKR, RX, RX; + vpshufb RKM, RX, RR1; /* be: IV2, IV3 */ + vpsubq RKR, RX, RX; + vpshufb RKM, RX, RL2; /* be: IV4, IV5 */ + vpsubq RKR, RX, RX; + vpshufb RKM, RX, RR2; /* be: IV6, IV7 */ + vpsubq RKR, RX, RX; + vpshufb RKM, RX, RL3; /* be: IV8, IV9 */ + vpsubq RKR, RX, RX; + vpshufb RKM, RX, RR3; /* be: IV10, IV11 */ + vpsubq RKR, RX, RX; + vpshufb RKM, RX, RL4; /* be: IV12, IV13 */ + vpsubq RKR, RX, RX; + vpshufb RKM, RX, RR4; /* be: IV14, IV15 */ + + /* store last IV */ + vpsubq RTMP, RX, RX; /* le: IV16, IV14 */ + vpshufb R1ST, RX, RX; /* be: IV16, IV16 */ + vmovq RX, (%rcx); + + call __cast5_enc_blk16; + + /* dst = src ^ iv */ + vpxor (0*16)(%r12), RR1, RR1; + vpxor (1*16)(%r12), RL1, RL1; + vpxor (2*16)(%r12), RR2, RR2; + vpxor (3*16)(%r12), RL2, RL2; + vpxor (4*16)(%r12), RR3, RR3; + vpxor (5*16)(%r12), RL3, RL3; + vpxor (6*16)(%r12), RR4, RR4; + vpxor (7*16)(%r12), RL4, RL4; + vmovdqu RR1, (0*16)(%r11); + vmovdqu RL1, (1*16)(%r11); + vmovdqu RR2, (2*16)(%r11); + vmovdqu RL2, (3*16)(%r11); + vmovdqu RR3, (4*16)(%r11); + vmovdqu RL3, (5*16)(%r11); + vmovdqu RR4, (6*16)(%r11); + vmovdqu RL4, (7*16)(%r11); + + popq %r15; + popq %r12; + FRAME_END + ret; +ENDPROC(cast5_ctr_16way) diff --git a/arch/x86/crypto/cast5_avx_glue.c b/arch/x86/crypto/cast5_avx_glue.c new file mode 100644 index 000000000..41034745d --- /dev/null +++ b/arch/x86/crypto/cast5_avx_glue.c @@ -0,0 +1,392 @@ +/* + * Glue Code for the AVX assembler implemention of the Cast5 Cipher + * + * Copyright (C) 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <asm/crypto/glue_helper.h> +#include <crypto/algapi.h> +#include <crypto/cast5.h> +#include <crypto/internal/simd.h> +#include <linux/crypto.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/types.h> + +#define CAST5_PARALLEL_BLOCKS 16 + +asmlinkage void cast5_ecb_enc_16way(struct cast5_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void cast5_ecb_dec_16way(struct cast5_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void cast5_cbc_dec_16way(struct cast5_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void cast5_ctr_16way(struct cast5_ctx *ctx, u8 *dst, const u8 *src, + __be64 *iv); + +static int cast5_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ + return cast5_setkey(&tfm->base, key, keylen); +} + +static inline bool cast5_fpu_begin(bool fpu_enabled, struct skcipher_walk *walk, + unsigned int nbytes) +{ + return glue_fpu_begin(CAST5_BLOCK_SIZE, CAST5_PARALLEL_BLOCKS, + walk, fpu_enabled, nbytes); +} + +static inline void cast5_fpu_end(bool fpu_enabled) +{ + return glue_fpu_end(fpu_enabled); +} + +static int ecb_crypt(struct skcipher_request *req, bool enc) +{ + bool fpu_enabled = false; + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct cast5_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + const unsigned int bsize = CAST5_BLOCK_SIZE; + unsigned int nbytes; + void (*fn)(struct cast5_ctx *ctx, u8 *dst, const u8 *src); + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + u8 *wsrc = walk.src.virt.addr; + u8 *wdst = walk.dst.virt.addr; + + fpu_enabled = cast5_fpu_begin(fpu_enabled, &walk, nbytes); + + /* Process multi-block batch */ + if (nbytes >= bsize * CAST5_PARALLEL_BLOCKS) { + fn = (enc) ? cast5_ecb_enc_16way : cast5_ecb_dec_16way; + do { + fn(ctx, wdst, wsrc); + + wsrc += bsize * CAST5_PARALLEL_BLOCKS; + wdst += bsize * CAST5_PARALLEL_BLOCKS; + nbytes -= bsize * CAST5_PARALLEL_BLOCKS; + } while (nbytes >= bsize * CAST5_PARALLEL_BLOCKS); + + if (nbytes < bsize) + goto done; + } + + fn = (enc) ? __cast5_encrypt : __cast5_decrypt; + + /* Handle leftovers */ + do { + fn(ctx, wdst, wsrc); + + wsrc += bsize; + wdst += bsize; + nbytes -= bsize; + } while (nbytes >= bsize); + +done: + err = skcipher_walk_done(&walk, nbytes); + } + + cast5_fpu_end(fpu_enabled); + return err; +} + +static int ecb_encrypt(struct skcipher_request *req) +{ + return ecb_crypt(req, true); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return ecb_crypt(req, false); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + const unsigned int bsize = CAST5_BLOCK_SIZE; + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct cast5_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + u64 *src = (u64 *)walk.src.virt.addr; + u64 *dst = (u64 *)walk.dst.virt.addr; + u64 *iv = (u64 *)walk.iv; + + do { + *dst = *src ^ *iv; + __cast5_encrypt(ctx, (u8 *)dst, (u8 *)dst); + iv = dst; + src++; + dst++; + nbytes -= bsize; + } while (nbytes >= bsize); + + *(u64 *)walk.iv = *iv; + err = skcipher_walk_done(&walk, nbytes); + } + + return err; +} + +static unsigned int __cbc_decrypt(struct cast5_ctx *ctx, + struct skcipher_walk *walk) +{ + const unsigned int bsize = CAST5_BLOCK_SIZE; + unsigned int nbytes = walk->nbytes; + u64 *src = (u64 *)walk->src.virt.addr; + u64 *dst = (u64 *)walk->dst.virt.addr; + u64 last_iv; + + /* Start of the last block. */ + src += nbytes / bsize - 1; + dst += nbytes / bsize - 1; + + last_iv = *src; + + /* Process multi-block batch */ + if (nbytes >= bsize * CAST5_PARALLEL_BLOCKS) { + do { + nbytes -= bsize * (CAST5_PARALLEL_BLOCKS - 1); + src -= CAST5_PARALLEL_BLOCKS - 1; + dst -= CAST5_PARALLEL_BLOCKS - 1; + + cast5_cbc_dec_16way(ctx, (u8 *)dst, (u8 *)src); + + nbytes -= bsize; + if (nbytes < bsize) + goto done; + + *dst ^= *(src - 1); + src -= 1; + dst -= 1; + } while (nbytes >= bsize * CAST5_PARALLEL_BLOCKS); + } + + /* Handle leftovers */ + for (;;) { + __cast5_decrypt(ctx, (u8 *)dst, (u8 *)src); + + nbytes -= bsize; + if (nbytes < bsize) + break; + + *dst ^= *(src - 1); + src -= 1; + dst -= 1; + } + +done: + *dst ^= *(u64 *)walk->iv; + *(u64 *)walk->iv = last_iv; + + return nbytes; +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct cast5_ctx *ctx = crypto_skcipher_ctx(tfm); + bool fpu_enabled = false; + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + fpu_enabled = cast5_fpu_begin(fpu_enabled, &walk, nbytes); + nbytes = __cbc_decrypt(ctx, &walk); + err = skcipher_walk_done(&walk, nbytes); + } + + cast5_fpu_end(fpu_enabled); + return err; +} + +static void ctr_crypt_final(struct skcipher_walk *walk, struct cast5_ctx *ctx) +{ + u8 *ctrblk = walk->iv; + u8 keystream[CAST5_BLOCK_SIZE]; + u8 *src = walk->src.virt.addr; + u8 *dst = walk->dst.virt.addr; + unsigned int nbytes = walk->nbytes; + + __cast5_encrypt(ctx, keystream, ctrblk); + crypto_xor_cpy(dst, keystream, src, nbytes); + + crypto_inc(ctrblk, CAST5_BLOCK_SIZE); +} + +static unsigned int __ctr_crypt(struct skcipher_walk *walk, + struct cast5_ctx *ctx) +{ + const unsigned int bsize = CAST5_BLOCK_SIZE; + unsigned int nbytes = walk->nbytes; + u64 *src = (u64 *)walk->src.virt.addr; + u64 *dst = (u64 *)walk->dst.virt.addr; + + /* Process multi-block batch */ + if (nbytes >= bsize * CAST5_PARALLEL_BLOCKS) { + do { + cast5_ctr_16way(ctx, (u8 *)dst, (u8 *)src, + (__be64 *)walk->iv); + + src += CAST5_PARALLEL_BLOCKS; + dst += CAST5_PARALLEL_BLOCKS; + nbytes -= bsize * CAST5_PARALLEL_BLOCKS; + } while (nbytes >= bsize * CAST5_PARALLEL_BLOCKS); + + if (nbytes < bsize) + goto done; + } + + /* Handle leftovers */ + do { + u64 ctrblk; + + if (dst != src) + *dst = *src; + + ctrblk = *(u64 *)walk->iv; + be64_add_cpu((__be64 *)walk->iv, 1); + + __cast5_encrypt(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk); + *dst ^= ctrblk; + + src += 1; + dst += 1; + nbytes -= bsize; + } while (nbytes >= bsize); + +done: + return nbytes; +} + +static int ctr_crypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct cast5_ctx *ctx = crypto_skcipher_ctx(tfm); + bool fpu_enabled = false; + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes) >= CAST5_BLOCK_SIZE) { + fpu_enabled = cast5_fpu_begin(fpu_enabled, &walk, nbytes); + nbytes = __ctr_crypt(&walk, ctx); + err = skcipher_walk_done(&walk, nbytes); + } + + cast5_fpu_end(fpu_enabled); + + if (walk.nbytes) { + ctr_crypt_final(&walk, ctx); + err = skcipher_walk_done(&walk, 0); + } + + return err; +} + +static struct skcipher_alg cast5_algs[] = { + { + .base.cra_name = "__ecb(cast5)", + .base.cra_driver_name = "__ecb-cast5-avx", + .base.cra_priority = 200, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAST5_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct cast5_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAST5_MIN_KEY_SIZE, + .max_keysize = CAST5_MAX_KEY_SIZE, + .setkey = cast5_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "__cbc(cast5)", + .base.cra_driver_name = "__cbc-cast5-avx", + .base.cra_priority = 200, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAST5_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct cast5_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAST5_MIN_KEY_SIZE, + .max_keysize = CAST5_MAX_KEY_SIZE, + .ivsize = CAST5_BLOCK_SIZE, + .setkey = cast5_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "__ctr(cast5)", + .base.cra_driver_name = "__ctr-cast5-avx", + .base.cra_priority = 200, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct cast5_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAST5_MIN_KEY_SIZE, + .max_keysize = CAST5_MAX_KEY_SIZE, + .ivsize = CAST5_BLOCK_SIZE, + .chunksize = CAST5_BLOCK_SIZE, + .setkey = cast5_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + } +}; + +static struct simd_skcipher_alg *cast5_simd_algs[ARRAY_SIZE(cast5_algs)]; + +static int __init cast5_init(void) +{ + const char *feature_name; + + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, + &feature_name)) { + pr_info("CPU feature '%s' is not supported.\n", feature_name); + return -ENODEV; + } + + return simd_register_skciphers_compat(cast5_algs, + ARRAY_SIZE(cast5_algs), + cast5_simd_algs); +} + +static void __exit cast5_exit(void) +{ + simd_unregister_skciphers(cast5_algs, ARRAY_SIZE(cast5_algs), + cast5_simd_algs); +} + +module_init(cast5_init); +module_exit(cast5_exit); + +MODULE_DESCRIPTION("Cast5 Cipher Algorithm, AVX optimized"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_CRYPTO("cast5"); diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S new file mode 100644 index 000000000..7f30b6f0d --- /dev/null +++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S @@ -0,0 +1,511 @@ +/* + * Cast6 Cipher 8-way parallel algorithm (AVX/x86_64) + * + * Copyright (C) 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include "glue_helper-asm-avx.S" + +.file "cast6-avx-x86_64-asm_64.S" + +.extern cast_s1 +.extern cast_s2 +.extern cast_s3 +.extern cast_s4 + +/* structure of crypto context */ +#define km 0 +#define kr (12*4*4) + +/* s-boxes */ +#define s1 cast_s1 +#define s2 cast_s2 +#define s3 cast_s3 +#define s4 cast_s4 + +/********************************************************************** + 8-way AVX cast6 + **********************************************************************/ +#define CTX %r15 + +#define RA1 %xmm0 +#define RB1 %xmm1 +#define RC1 %xmm2 +#define RD1 %xmm3 + +#define RA2 %xmm4 +#define RB2 %xmm5 +#define RC2 %xmm6 +#define RD2 %xmm7 + +#define RX %xmm8 + +#define RKM %xmm9 +#define RKR %xmm10 +#define RKRF %xmm11 +#define RKRR %xmm12 +#define R32 %xmm13 +#define R1ST %xmm14 + +#define RTMP %xmm15 + +#define RID1 %rdi +#define RID1d %edi +#define RID2 %rsi +#define RID2d %esi + +#define RGI1 %rdx +#define RGI1bl %dl +#define RGI1bh %dh +#define RGI2 %rcx +#define RGI2bl %cl +#define RGI2bh %ch + +#define RGI3 %rax +#define RGI3bl %al +#define RGI3bh %ah +#define RGI4 %rbx +#define RGI4bl %bl +#define RGI4bh %bh + +#define RFS1 %r8 +#define RFS1d %r8d +#define RFS2 %r9 +#define RFS2d %r9d +#define RFS3 %r10 +#define RFS3d %r10d + + +#define lookup_32bit(src, dst, op1, op2, op3, interleave_op, il_reg) \ + movzbl src ## bh, RID1d; \ + movzbl src ## bl, RID2d; \ + shrq $16, src; \ + movl s1(, RID1, 4), dst ## d; \ + op1 s2(, RID2, 4), dst ## d; \ + movzbl src ## bh, RID1d; \ + movzbl src ## bl, RID2d; \ + interleave_op(il_reg); \ + op2 s3(, RID1, 4), dst ## d; \ + op3 s4(, RID2, 4), dst ## d; + +#define dummy(d) /* do nothing */ + +#define shr_next(reg) \ + shrq $16, reg; + +#define F_head(a, x, gi1, gi2, op0) \ + op0 a, RKM, x; \ + vpslld RKRF, x, RTMP; \ + vpsrld RKRR, x, x; \ + vpor RTMP, x, x; \ + \ + vmovq x, gi1; \ + vpextrq $1, x, gi2; + +#define F_tail(a, x, gi1, gi2, op1, op2, op3) \ + lookup_32bit(##gi1, RFS1, op1, op2, op3, shr_next, ##gi1); \ + lookup_32bit(##gi2, RFS3, op1, op2, op3, shr_next, ##gi2); \ + \ + lookup_32bit(##gi1, RFS2, op1, op2, op3, dummy, none); \ + shlq $32, RFS2; \ + orq RFS1, RFS2; \ + lookup_32bit(##gi2, RFS1, op1, op2, op3, dummy, none); \ + shlq $32, RFS1; \ + orq RFS1, RFS3; \ + \ + vmovq RFS2, x; \ + vpinsrq $1, RFS3, x, x; + +#define F_2(a1, b1, a2, b2, op0, op1, op2, op3) \ + F_head(b1, RX, RGI1, RGI2, op0); \ + F_head(b2, RX, RGI3, RGI4, op0); \ + \ + F_tail(b1, RX, RGI1, RGI2, op1, op2, op3); \ + F_tail(b2, RTMP, RGI3, RGI4, op1, op2, op3); \ + \ + vpxor a1, RX, a1; \ + vpxor a2, RTMP, a2; + +#define F1_2(a1, b1, a2, b2) \ + F_2(a1, b1, a2, b2, vpaddd, xorl, subl, addl) +#define F2_2(a1, b1, a2, b2) \ + F_2(a1, b1, a2, b2, vpxor, subl, addl, xorl) +#define F3_2(a1, b1, a2, b2) \ + F_2(a1, b1, a2, b2, vpsubd, addl, xorl, subl) + +#define qop(in, out, f) \ + F ## f ## _2(out ## 1, in ## 1, out ## 2, in ## 2); + +#define get_round_keys(nn) \ + vbroadcastss (km+(4*(nn)))(CTX), RKM; \ + vpand R1ST, RKR, RKRF; \ + vpsubq RKRF, R32, RKRR; \ + vpsrldq $1, RKR, RKR; + +#define Q(n) \ + get_round_keys(4*n+0); \ + qop(RD, RC, 1); \ + \ + get_round_keys(4*n+1); \ + qop(RC, RB, 2); \ + \ + get_round_keys(4*n+2); \ + qop(RB, RA, 3); \ + \ + get_round_keys(4*n+3); \ + qop(RA, RD, 1); + +#define QBAR(n) \ + get_round_keys(4*n+3); \ + qop(RA, RD, 1); \ + \ + get_round_keys(4*n+2); \ + qop(RB, RA, 3); \ + \ + get_round_keys(4*n+1); \ + qop(RC, RB, 2); \ + \ + get_round_keys(4*n+0); \ + qop(RD, RC, 1); + +#define shuffle(mask) \ + vpshufb mask, RKR, RKR; + +#define preload_rkr(n, do_mask, mask) \ + vbroadcastss .L16_mask, RKR; \ + /* add 16-bit rotation to key rotations (mod 32) */ \ + vpxor (kr+n*16)(CTX), RKR, RKR; \ + do_mask(mask); + +#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + vpunpckldq x1, x0, t0; \ + vpunpckhdq x1, x0, t2; \ + vpunpckldq x3, x2, t1; \ + vpunpckhdq x3, x2, x3; \ + \ + vpunpcklqdq t1, t0, x0; \ + vpunpckhqdq t1, t0, x1; \ + vpunpcklqdq x3, t2, x2; \ + vpunpckhqdq x3, t2, x3; + +#define inpack_blocks(x0, x1, x2, x3, t0, t1, t2, rmask) \ + vpshufb rmask, x0, x0; \ + vpshufb rmask, x1, x1; \ + vpshufb rmask, x2, x2; \ + vpshufb rmask, x3, x3; \ + \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) + +#define outunpack_blocks(x0, x1, x2, x3, t0, t1, t2, rmask) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + \ + vpshufb rmask, x0, x0; \ + vpshufb rmask, x1, x1; \ + vpshufb rmask, x2, x2; \ + vpshufb rmask, x3, x3; + +.section .rodata.cst16, "aM", @progbits, 16 +.align 16 +.Lxts_gf128mul_and_shl1_mask: + .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 +.Lbswap_mask: + .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 +.Lbswap128_mask: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 +.Lrkr_enc_Q_Q_QBAR_QBAR: + .byte 0, 1, 2, 3, 4, 5, 6, 7, 11, 10, 9, 8, 15, 14, 13, 12 +.Lrkr_enc_QBAR_QBAR_QBAR_QBAR: + .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 +.Lrkr_dec_Q_Q_Q_Q: + .byte 12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3 +.Lrkr_dec_Q_Q_QBAR_QBAR: + .byte 12, 13, 14, 15, 8, 9, 10, 11, 7, 6, 5, 4, 3, 2, 1, 0 +.Lrkr_dec_QBAR_QBAR_QBAR_QBAR: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 + +.section .rodata.cst4.L16_mask, "aM", @progbits, 4 +.align 4 +.L16_mask: + .byte 16, 16, 16, 16 + +.section .rodata.cst4.L32_mask, "aM", @progbits, 4 +.align 4 +.L32_mask: + .byte 32, 0, 0, 0 + +.section .rodata.cst4.first_mask, "aM", @progbits, 4 +.align 4 +.Lfirst_mask: + .byte 0x1f, 0, 0, 0 + +.text + +.align 8 +__cast6_enc_blk8: + /* input: + * %rdi: ctx + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks + * output: + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks + */ + + pushq %r15; + pushq %rbx; + + movq %rdi, CTX; + + vmovdqa .Lbswap_mask, RKM; + vmovd .Lfirst_mask, R1ST; + vmovd .L32_mask, R32; + + inpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM); + inpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM); + + preload_rkr(0, dummy, none); + Q(0); + Q(1); + Q(2); + Q(3); + preload_rkr(1, shuffle, .Lrkr_enc_Q_Q_QBAR_QBAR); + Q(4); + Q(5); + QBAR(6); + QBAR(7); + preload_rkr(2, shuffle, .Lrkr_enc_QBAR_QBAR_QBAR_QBAR); + QBAR(8); + QBAR(9); + QBAR(10); + QBAR(11); + + popq %rbx; + popq %r15; + + vmovdqa .Lbswap_mask, RKM; + + outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM); + outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM); + + ret; +ENDPROC(__cast6_enc_blk8) + +.align 8 +__cast6_dec_blk8: + /* input: + * %rdi: ctx + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks + * output: + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: decrypted blocks + */ + + pushq %r15; + pushq %rbx; + + movq %rdi, CTX; + + vmovdqa .Lbswap_mask, RKM; + vmovd .Lfirst_mask, R1ST; + vmovd .L32_mask, R32; + + inpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM); + inpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM); + + preload_rkr(2, shuffle, .Lrkr_dec_Q_Q_Q_Q); + Q(11); + Q(10); + Q(9); + Q(8); + preload_rkr(1, shuffle, .Lrkr_dec_Q_Q_QBAR_QBAR); + Q(7); + Q(6); + QBAR(5); + QBAR(4); + preload_rkr(0, shuffle, .Lrkr_dec_QBAR_QBAR_QBAR_QBAR); + QBAR(3); + QBAR(2); + QBAR(1); + QBAR(0); + + popq %rbx; + popq %r15; + + vmovdqa .Lbswap_mask, RKM; + outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM); + outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM); + + ret; +ENDPROC(__cast6_dec_blk8) + +ENTRY(cast6_ecb_enc_8way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + pushq %r15; + + movq %rdi, CTX; + movq %rsi, %r11; + + load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __cast6_enc_blk8; + + store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + popq %r15; + FRAME_END + ret; +ENDPROC(cast6_ecb_enc_8way) + +ENTRY(cast6_ecb_dec_8way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + pushq %r15; + + movq %rdi, CTX; + movq %rsi, %r11; + + load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __cast6_dec_blk8; + + store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + popq %r15; + FRAME_END + ret; +ENDPROC(cast6_ecb_dec_8way) + +ENTRY(cast6_cbc_dec_8way) + /* input: + * %rdi: ctx + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + pushq %r12; + pushq %r15; + + movq %rdi, CTX; + movq %rsi, %r11; + movq %rdx, %r12; + + load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __cast6_dec_blk8; + + store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + popq %r15; + popq %r12; + FRAME_END + ret; +ENDPROC(cast6_cbc_dec_8way) + +ENTRY(cast6_ctr_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (little endian, 128bit) + */ + FRAME_BEGIN + pushq %r12; + pushq %r15 + + movq %rdi, CTX; + movq %rsi, %r11; + movq %rdx, %r12; + + load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2, + RD2, RX, RKR, RKM); + + call __cast6_enc_blk8; + + store_ctr_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + popq %r15; + popq %r12; + FRAME_END + ret; +ENDPROC(cast6_ctr_8way) + +ENTRY(cast6_xts_enc_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + FRAME_BEGIN + pushq %r15; + + movq %rdi, CTX + movq %rsi, %r11; + + /* regs <= src, dst <= IVs, regs <= regs xor IVs */ + load_xts_8way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2, + RX, RKR, RKM, .Lxts_gf128mul_and_shl1_mask); + + call __cast6_enc_blk8; + + /* dst <= regs xor IVs(in dst) */ + store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + popq %r15; + FRAME_END + ret; +ENDPROC(cast6_xts_enc_8way) + +ENTRY(cast6_xts_dec_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + FRAME_BEGIN + pushq %r15; + + movq %rdi, CTX + movq %rsi, %r11; + + /* regs <= src, dst <= IVs, regs <= regs xor IVs */ + load_xts_8way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2, + RX, RKR, RKM, .Lxts_gf128mul_and_shl1_mask); + + call __cast6_dec_blk8; + + /* dst <= regs xor IVs(in dst) */ + store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + popq %r15; + FRAME_END + ret; +ENDPROC(cast6_xts_dec_8way) diff --git a/arch/x86/crypto/cast6_avx_glue.c b/arch/x86/crypto/cast6_avx_glue.c new file mode 100644 index 000000000..9fb66b5e9 --- /dev/null +++ b/arch/x86/crypto/cast6_avx_glue.c @@ -0,0 +1,320 @@ +/* + * Glue Code for the AVX assembler implemention of the Cast6 Cipher + * + * Copyright (C) 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/crypto.h> +#include <linux/err.h> +#include <crypto/algapi.h> +#include <crypto/cast6.h> +#include <crypto/internal/simd.h> +#include <crypto/xts.h> +#include <asm/crypto/glue_helper.h> + +#define CAST6_PARALLEL_BLOCKS 8 + +asmlinkage void cast6_ecb_enc_8way(struct cast6_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void cast6_ecb_dec_8way(struct cast6_ctx *ctx, u8 *dst, + const u8 *src); + +asmlinkage void cast6_cbc_dec_8way(struct cast6_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void cast6_ctr_8way(struct cast6_ctx *ctx, u8 *dst, const u8 *src, + le128 *iv); + +asmlinkage void cast6_xts_enc_8way(struct cast6_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +asmlinkage void cast6_xts_dec_8way(struct cast6_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +static int cast6_setkey_skcipher(struct crypto_skcipher *tfm, + const u8 *key, unsigned int keylen) +{ + return cast6_setkey(&tfm->base, key, keylen); +} + +static void cast6_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(__cast6_encrypt)); +} + +static void cast6_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(__cast6_decrypt)); +} + +static void cast6_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + be128 ctrblk; + + le128_to_be128(&ctrblk, iv); + le128_inc(iv); + + __cast6_encrypt(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk); + u128_xor(dst, src, (u128 *)&ctrblk); +} + +static const struct common_glue_ctx cast6_enc = { + .num_funcs = 2, + .fpu_blocks_limit = CAST6_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAST6_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(cast6_ecb_enc_8way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(__cast6_encrypt) } + } } +}; + +static const struct common_glue_ctx cast6_ctr = { + .num_funcs = 2, + .fpu_blocks_limit = CAST6_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAST6_PARALLEL_BLOCKS, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(cast6_ctr_8way) } + }, { + .num_blocks = 1, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(cast6_crypt_ctr) } + } } +}; + +static const struct common_glue_ctx cast6_enc_xts = { + .num_funcs = 2, + .fpu_blocks_limit = CAST6_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAST6_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(cast6_xts_enc_8way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(cast6_xts_enc) } + } } +}; + +static const struct common_glue_ctx cast6_dec = { + .num_funcs = 2, + .fpu_blocks_limit = CAST6_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAST6_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(cast6_ecb_dec_8way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(__cast6_decrypt) } + } } +}; + +static const struct common_glue_ctx cast6_dec_cbc = { + .num_funcs = 2, + .fpu_blocks_limit = CAST6_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAST6_PARALLEL_BLOCKS, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(cast6_cbc_dec_8way) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__cast6_decrypt) } + } } +}; + +static const struct common_glue_ctx cast6_dec_xts = { + .num_funcs = 2, + .fpu_blocks_limit = CAST6_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAST6_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(cast6_xts_dec_8way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(cast6_xts_dec) } + } } +}; + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&cast6_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&cast6_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__cast6_encrypt), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&cast6_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&cast6_ctr, req); +} + +struct cast6_xts_ctx { + struct cast6_ctx tweak_ctx; + struct cast6_ctx crypt_ctx; +}; + +static int xts_cast6_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ + struct cast6_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + u32 *flags = &tfm->base.crt_flags; + int err; + + err = xts_verify_key(tfm, key, keylen); + if (err) + return err; + + /* first half of xts-key is for crypt */ + err = __cast6_setkey(&ctx->crypt_ctx, key, keylen / 2, flags); + if (err) + return err; + + /* second half of xts-key is for tweak */ + return __cast6_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2, + flags); +} + +static int xts_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct cast6_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&cast6_enc_xts, req, + XTS_TWEAK_CAST(__cast6_encrypt), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static int xts_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct cast6_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&cast6_dec_xts, req, + XTS_TWEAK_CAST(__cast6_encrypt), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static struct skcipher_alg cast6_algs[] = { + { + .base.cra_name = "__ecb(cast6)", + .base.cra_driver_name = "__ecb-cast6-avx", + .base.cra_priority = 200, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAST6_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct cast6_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAST6_MIN_KEY_SIZE, + .max_keysize = CAST6_MAX_KEY_SIZE, + .setkey = cast6_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "__cbc(cast6)", + .base.cra_driver_name = "__cbc-cast6-avx", + .base.cra_priority = 200, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAST6_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct cast6_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAST6_MIN_KEY_SIZE, + .max_keysize = CAST6_MAX_KEY_SIZE, + .ivsize = CAST6_BLOCK_SIZE, + .setkey = cast6_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "__ctr(cast6)", + .base.cra_driver_name = "__ctr-cast6-avx", + .base.cra_priority = 200, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct cast6_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = CAST6_MIN_KEY_SIZE, + .max_keysize = CAST6_MAX_KEY_SIZE, + .ivsize = CAST6_BLOCK_SIZE, + .chunksize = CAST6_BLOCK_SIZE, + .setkey = cast6_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, { + .base.cra_name = "__xts(cast6)", + .base.cra_driver_name = "__xts-cast6-avx", + .base.cra_priority = 200, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = CAST6_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct cast6_xts_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = 2 * CAST6_MIN_KEY_SIZE, + .max_keysize = 2 * CAST6_MAX_KEY_SIZE, + .ivsize = CAST6_BLOCK_SIZE, + .setkey = xts_cast6_setkey, + .encrypt = xts_encrypt, + .decrypt = xts_decrypt, + }, +}; + +static struct simd_skcipher_alg *cast6_simd_algs[ARRAY_SIZE(cast6_algs)]; + +static int __init cast6_init(void) +{ + const char *feature_name; + + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, + &feature_name)) { + pr_info("CPU feature '%s' is not supported.\n", feature_name); + return -ENODEV; + } + + return simd_register_skciphers_compat(cast6_algs, + ARRAY_SIZE(cast6_algs), + cast6_simd_algs); +} + +static void __exit cast6_exit(void) +{ + simd_unregister_skciphers(cast6_algs, ARRAY_SIZE(cast6_algs), + cast6_simd_algs); +} + +module_init(cast6_init); +module_exit(cast6_exit); + +MODULE_DESCRIPTION("Cast6 Cipher Algorithm, AVX optimized"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_CRYPTO("cast6"); diff --git a/arch/x86/crypto/chacha20-avx2-x86_64.S b/arch/x86/crypto/chacha20-avx2-x86_64.S new file mode 100644 index 000000000..f3cd26f48 --- /dev/null +++ b/arch/x86/crypto/chacha20-avx2-x86_64.S @@ -0,0 +1,448 @@ +/* + * ChaCha20 256-bit cipher algorithm, RFC7539, x64 AVX2 functions + * + * Copyright (C) 2015 Martin Willi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/linkage.h> + +.section .rodata.cst32.ROT8, "aM", @progbits, 32 +.align 32 +ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003 + .octa 0x0e0d0c0f0a09080b0605040702010003 + +.section .rodata.cst32.ROT16, "aM", @progbits, 32 +.align 32 +ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302 + .octa 0x0d0c0f0e09080b0a0504070601000302 + +.section .rodata.cst32.CTRINC, "aM", @progbits, 32 +.align 32 +CTRINC: .octa 0x00000003000000020000000100000000 + .octa 0x00000007000000060000000500000004 + +.text + +ENTRY(chacha20_8block_xor_avx2) + # %rdi: Input state matrix, s + # %rsi: 8 data blocks output, o + # %rdx: 8 data blocks input, i + + # This function encrypts eight consecutive ChaCha20 blocks by loading + # the state matrix in AVX registers eight times. As we need some + # scratch registers, we save the first four registers on the stack. The + # algorithm performs each operation on the corresponding word of each + # state matrix, hence requires no word shuffling. For final XORing step + # we transpose the matrix by interleaving 32-, 64- and then 128-bit + # words, which allows us to do XOR in AVX registers. 8/16-bit word + # rotation is done with the slightly better performing byte shuffling, + # 7/12-bit word rotation uses traditional shift+OR. + + vzeroupper + # 4 * 32 byte stack, 32-byte aligned + lea 8(%rsp),%r10 + and $~31, %rsp + sub $0x80, %rsp + + # x0..15[0-7] = s[0..15] + vpbroadcastd 0x00(%rdi),%ymm0 + vpbroadcastd 0x04(%rdi),%ymm1 + vpbroadcastd 0x08(%rdi),%ymm2 + vpbroadcastd 0x0c(%rdi),%ymm3 + vpbroadcastd 0x10(%rdi),%ymm4 + vpbroadcastd 0x14(%rdi),%ymm5 + vpbroadcastd 0x18(%rdi),%ymm6 + vpbroadcastd 0x1c(%rdi),%ymm7 + vpbroadcastd 0x20(%rdi),%ymm8 + vpbroadcastd 0x24(%rdi),%ymm9 + vpbroadcastd 0x28(%rdi),%ymm10 + vpbroadcastd 0x2c(%rdi),%ymm11 + vpbroadcastd 0x30(%rdi),%ymm12 + vpbroadcastd 0x34(%rdi),%ymm13 + vpbroadcastd 0x38(%rdi),%ymm14 + vpbroadcastd 0x3c(%rdi),%ymm15 + # x0..3 on stack + vmovdqa %ymm0,0x00(%rsp) + vmovdqa %ymm1,0x20(%rsp) + vmovdqa %ymm2,0x40(%rsp) + vmovdqa %ymm3,0x60(%rsp) + + vmovdqa CTRINC(%rip),%ymm1 + vmovdqa ROT8(%rip),%ymm2 + vmovdqa ROT16(%rip),%ymm3 + + # x12 += counter values 0-3 + vpaddd %ymm1,%ymm12,%ymm12 + + mov $10,%ecx + +.Ldoubleround8: + # x0 += x4, x12 = rotl32(x12 ^ x0, 16) + vpaddd 0x00(%rsp),%ymm4,%ymm0 + vmovdqa %ymm0,0x00(%rsp) + vpxor %ymm0,%ymm12,%ymm12 + vpshufb %ymm3,%ymm12,%ymm12 + # x1 += x5, x13 = rotl32(x13 ^ x1, 16) + vpaddd 0x20(%rsp),%ymm5,%ymm0 + vmovdqa %ymm0,0x20(%rsp) + vpxor %ymm0,%ymm13,%ymm13 + vpshufb %ymm3,%ymm13,%ymm13 + # x2 += x6, x14 = rotl32(x14 ^ x2, 16) + vpaddd 0x40(%rsp),%ymm6,%ymm0 + vmovdqa %ymm0,0x40(%rsp) + vpxor %ymm0,%ymm14,%ymm14 + vpshufb %ymm3,%ymm14,%ymm14 + # x3 += x7, x15 = rotl32(x15 ^ x3, 16) + vpaddd 0x60(%rsp),%ymm7,%ymm0 + vmovdqa %ymm0,0x60(%rsp) + vpxor %ymm0,%ymm15,%ymm15 + vpshufb %ymm3,%ymm15,%ymm15 + + # x8 += x12, x4 = rotl32(x4 ^ x8, 12) + vpaddd %ymm12,%ymm8,%ymm8 + vpxor %ymm8,%ymm4,%ymm4 + vpslld $12,%ymm4,%ymm0 + vpsrld $20,%ymm4,%ymm4 + vpor %ymm0,%ymm4,%ymm4 + # x9 += x13, x5 = rotl32(x5 ^ x9, 12) + vpaddd %ymm13,%ymm9,%ymm9 + vpxor %ymm9,%ymm5,%ymm5 + vpslld $12,%ymm5,%ymm0 + vpsrld $20,%ymm5,%ymm5 + vpor %ymm0,%ymm5,%ymm5 + # x10 += x14, x6 = rotl32(x6 ^ x10, 12) + vpaddd %ymm14,%ymm10,%ymm10 + vpxor %ymm10,%ymm6,%ymm6 + vpslld $12,%ymm6,%ymm0 + vpsrld $20,%ymm6,%ymm6 + vpor %ymm0,%ymm6,%ymm6 + # x11 += x15, x7 = rotl32(x7 ^ x11, 12) + vpaddd %ymm15,%ymm11,%ymm11 + vpxor %ymm11,%ymm7,%ymm7 + vpslld $12,%ymm7,%ymm0 + vpsrld $20,%ymm7,%ymm7 + vpor %ymm0,%ymm7,%ymm7 + + # x0 += x4, x12 = rotl32(x12 ^ x0, 8) + vpaddd 0x00(%rsp),%ymm4,%ymm0 + vmovdqa %ymm0,0x00(%rsp) + vpxor %ymm0,%ymm12,%ymm12 + vpshufb %ymm2,%ymm12,%ymm12 + # x1 += x5, x13 = rotl32(x13 ^ x1, 8) + vpaddd 0x20(%rsp),%ymm5,%ymm0 + vmovdqa %ymm0,0x20(%rsp) + vpxor %ymm0,%ymm13,%ymm13 + vpshufb %ymm2,%ymm13,%ymm13 + # x2 += x6, x14 = rotl32(x14 ^ x2, 8) + vpaddd 0x40(%rsp),%ymm6,%ymm0 + vmovdqa %ymm0,0x40(%rsp) + vpxor %ymm0,%ymm14,%ymm14 + vpshufb %ymm2,%ymm14,%ymm14 + # x3 += x7, x15 = rotl32(x15 ^ x3, 8) + vpaddd 0x60(%rsp),%ymm7,%ymm0 + vmovdqa %ymm0,0x60(%rsp) + vpxor %ymm0,%ymm15,%ymm15 + vpshufb %ymm2,%ymm15,%ymm15 + + # x8 += x12, x4 = rotl32(x4 ^ x8, 7) + vpaddd %ymm12,%ymm8,%ymm8 + vpxor %ymm8,%ymm4,%ymm4 + vpslld $7,%ymm4,%ymm0 + vpsrld $25,%ymm4,%ymm4 + vpor %ymm0,%ymm4,%ymm4 + # x9 += x13, x5 = rotl32(x5 ^ x9, 7) + vpaddd %ymm13,%ymm9,%ymm9 + vpxor %ymm9,%ymm5,%ymm5 + vpslld $7,%ymm5,%ymm0 + vpsrld $25,%ymm5,%ymm5 + vpor %ymm0,%ymm5,%ymm5 + # x10 += x14, x6 = rotl32(x6 ^ x10, 7) + vpaddd %ymm14,%ymm10,%ymm10 + vpxor %ymm10,%ymm6,%ymm6 + vpslld $7,%ymm6,%ymm0 + vpsrld $25,%ymm6,%ymm6 + vpor %ymm0,%ymm6,%ymm6 + # x11 += x15, x7 = rotl32(x7 ^ x11, 7) + vpaddd %ymm15,%ymm11,%ymm11 + vpxor %ymm11,%ymm7,%ymm7 + vpslld $7,%ymm7,%ymm0 + vpsrld $25,%ymm7,%ymm7 + vpor %ymm0,%ymm7,%ymm7 + + # x0 += x5, x15 = rotl32(x15 ^ x0, 16) + vpaddd 0x00(%rsp),%ymm5,%ymm0 + vmovdqa %ymm0,0x00(%rsp) + vpxor %ymm0,%ymm15,%ymm15 + vpshufb %ymm3,%ymm15,%ymm15 + # x1 += x6, x12 = rotl32(x12 ^ x1, 16)%ymm0 + vpaddd 0x20(%rsp),%ymm6,%ymm0 + vmovdqa %ymm0,0x20(%rsp) + vpxor %ymm0,%ymm12,%ymm12 + vpshufb %ymm3,%ymm12,%ymm12 + # x2 += x7, x13 = rotl32(x13 ^ x2, 16) + vpaddd 0x40(%rsp),%ymm7,%ymm0 + vmovdqa %ymm0,0x40(%rsp) + vpxor %ymm0,%ymm13,%ymm13 + vpshufb %ymm3,%ymm13,%ymm13 + # x3 += x4, x14 = rotl32(x14 ^ x3, 16) + vpaddd 0x60(%rsp),%ymm4,%ymm0 + vmovdqa %ymm0,0x60(%rsp) + vpxor %ymm0,%ymm14,%ymm14 + vpshufb %ymm3,%ymm14,%ymm14 + + # x10 += x15, x5 = rotl32(x5 ^ x10, 12) + vpaddd %ymm15,%ymm10,%ymm10 + vpxor %ymm10,%ymm5,%ymm5 + vpslld $12,%ymm5,%ymm0 + vpsrld $20,%ymm5,%ymm5 + vpor %ymm0,%ymm5,%ymm5 + # x11 += x12, x6 = rotl32(x6 ^ x11, 12) + vpaddd %ymm12,%ymm11,%ymm11 + vpxor %ymm11,%ymm6,%ymm6 + vpslld $12,%ymm6,%ymm0 + vpsrld $20,%ymm6,%ymm6 + vpor %ymm0,%ymm6,%ymm6 + # x8 += x13, x7 = rotl32(x7 ^ x8, 12) + vpaddd %ymm13,%ymm8,%ymm8 + vpxor %ymm8,%ymm7,%ymm7 + vpslld $12,%ymm7,%ymm0 + vpsrld $20,%ymm7,%ymm7 + vpor %ymm0,%ymm7,%ymm7 + # x9 += x14, x4 = rotl32(x4 ^ x9, 12) + vpaddd %ymm14,%ymm9,%ymm9 + vpxor %ymm9,%ymm4,%ymm4 + vpslld $12,%ymm4,%ymm0 + vpsrld $20,%ymm4,%ymm4 + vpor %ymm0,%ymm4,%ymm4 + + # x0 += x5, x15 = rotl32(x15 ^ x0, 8) + vpaddd 0x00(%rsp),%ymm5,%ymm0 + vmovdqa %ymm0,0x00(%rsp) + vpxor %ymm0,%ymm15,%ymm15 + vpshufb %ymm2,%ymm15,%ymm15 + # x1 += x6, x12 = rotl32(x12 ^ x1, 8) + vpaddd 0x20(%rsp),%ymm6,%ymm0 + vmovdqa %ymm0,0x20(%rsp) + vpxor %ymm0,%ymm12,%ymm12 + vpshufb %ymm2,%ymm12,%ymm12 + # x2 += x7, x13 = rotl32(x13 ^ x2, 8) + vpaddd 0x40(%rsp),%ymm7,%ymm0 + vmovdqa %ymm0,0x40(%rsp) + vpxor %ymm0,%ymm13,%ymm13 + vpshufb %ymm2,%ymm13,%ymm13 + # x3 += x4, x14 = rotl32(x14 ^ x3, 8) + vpaddd 0x60(%rsp),%ymm4,%ymm0 + vmovdqa %ymm0,0x60(%rsp) + vpxor %ymm0,%ymm14,%ymm14 + vpshufb %ymm2,%ymm14,%ymm14 + + # x10 += x15, x5 = rotl32(x5 ^ x10, 7) + vpaddd %ymm15,%ymm10,%ymm10 + vpxor %ymm10,%ymm5,%ymm5 + vpslld $7,%ymm5,%ymm0 + vpsrld $25,%ymm5,%ymm5 + vpor %ymm0,%ymm5,%ymm5 + # x11 += x12, x6 = rotl32(x6 ^ x11, 7) + vpaddd %ymm12,%ymm11,%ymm11 + vpxor %ymm11,%ymm6,%ymm6 + vpslld $7,%ymm6,%ymm0 + vpsrld $25,%ymm6,%ymm6 + vpor %ymm0,%ymm6,%ymm6 + # x8 += x13, x7 = rotl32(x7 ^ x8, 7) + vpaddd %ymm13,%ymm8,%ymm8 + vpxor %ymm8,%ymm7,%ymm7 + vpslld $7,%ymm7,%ymm0 + vpsrld $25,%ymm7,%ymm7 + vpor %ymm0,%ymm7,%ymm7 + # x9 += x14, x4 = rotl32(x4 ^ x9, 7) + vpaddd %ymm14,%ymm9,%ymm9 + vpxor %ymm9,%ymm4,%ymm4 + vpslld $7,%ymm4,%ymm0 + vpsrld $25,%ymm4,%ymm4 + vpor %ymm0,%ymm4,%ymm4 + + dec %ecx + jnz .Ldoubleround8 + + # x0..15[0-3] += s[0..15] + vpbroadcastd 0x00(%rdi),%ymm0 + vpaddd 0x00(%rsp),%ymm0,%ymm0 + vmovdqa %ymm0,0x00(%rsp) + vpbroadcastd 0x04(%rdi),%ymm0 + vpaddd 0x20(%rsp),%ymm0,%ymm0 + vmovdqa %ymm0,0x20(%rsp) + vpbroadcastd 0x08(%rdi),%ymm0 + vpaddd 0x40(%rsp),%ymm0,%ymm0 + vmovdqa %ymm0,0x40(%rsp) + vpbroadcastd 0x0c(%rdi),%ymm0 + vpaddd 0x60(%rsp),%ymm0,%ymm0 + vmovdqa %ymm0,0x60(%rsp) + vpbroadcastd 0x10(%rdi),%ymm0 + vpaddd %ymm0,%ymm4,%ymm4 + vpbroadcastd 0x14(%rdi),%ymm0 + vpaddd %ymm0,%ymm5,%ymm5 + vpbroadcastd 0x18(%rdi),%ymm0 + vpaddd %ymm0,%ymm6,%ymm6 + vpbroadcastd 0x1c(%rdi),%ymm0 + vpaddd %ymm0,%ymm7,%ymm7 + vpbroadcastd 0x20(%rdi),%ymm0 + vpaddd %ymm0,%ymm8,%ymm8 + vpbroadcastd 0x24(%rdi),%ymm0 + vpaddd %ymm0,%ymm9,%ymm9 + vpbroadcastd 0x28(%rdi),%ymm0 + vpaddd %ymm0,%ymm10,%ymm10 + vpbroadcastd 0x2c(%rdi),%ymm0 + vpaddd %ymm0,%ymm11,%ymm11 + vpbroadcastd 0x30(%rdi),%ymm0 + vpaddd %ymm0,%ymm12,%ymm12 + vpbroadcastd 0x34(%rdi),%ymm0 + vpaddd %ymm0,%ymm13,%ymm13 + vpbroadcastd 0x38(%rdi),%ymm0 + vpaddd %ymm0,%ymm14,%ymm14 + vpbroadcastd 0x3c(%rdi),%ymm0 + vpaddd %ymm0,%ymm15,%ymm15 + + # x12 += counter values 0-3 + vpaddd %ymm1,%ymm12,%ymm12 + + # interleave 32-bit words in state n, n+1 + vmovdqa 0x00(%rsp),%ymm0 + vmovdqa 0x20(%rsp),%ymm1 + vpunpckldq %ymm1,%ymm0,%ymm2 + vpunpckhdq %ymm1,%ymm0,%ymm1 + vmovdqa %ymm2,0x00(%rsp) + vmovdqa %ymm1,0x20(%rsp) + vmovdqa 0x40(%rsp),%ymm0 + vmovdqa 0x60(%rsp),%ymm1 + vpunpckldq %ymm1,%ymm0,%ymm2 + vpunpckhdq %ymm1,%ymm0,%ymm1 + vmovdqa %ymm2,0x40(%rsp) + vmovdqa %ymm1,0x60(%rsp) + vmovdqa %ymm4,%ymm0 + vpunpckldq %ymm5,%ymm0,%ymm4 + vpunpckhdq %ymm5,%ymm0,%ymm5 + vmovdqa %ymm6,%ymm0 + vpunpckldq %ymm7,%ymm0,%ymm6 + vpunpckhdq %ymm7,%ymm0,%ymm7 + vmovdqa %ymm8,%ymm0 + vpunpckldq %ymm9,%ymm0,%ymm8 + vpunpckhdq %ymm9,%ymm0,%ymm9 + vmovdqa %ymm10,%ymm0 + vpunpckldq %ymm11,%ymm0,%ymm10 + vpunpckhdq %ymm11,%ymm0,%ymm11 + vmovdqa %ymm12,%ymm0 + vpunpckldq %ymm13,%ymm0,%ymm12 + vpunpckhdq %ymm13,%ymm0,%ymm13 + vmovdqa %ymm14,%ymm0 + vpunpckldq %ymm15,%ymm0,%ymm14 + vpunpckhdq %ymm15,%ymm0,%ymm15 + + # interleave 64-bit words in state n, n+2 + vmovdqa 0x00(%rsp),%ymm0 + vmovdqa 0x40(%rsp),%ymm2 + vpunpcklqdq %ymm2,%ymm0,%ymm1 + vpunpckhqdq %ymm2,%ymm0,%ymm2 + vmovdqa %ymm1,0x00(%rsp) + vmovdqa %ymm2,0x40(%rsp) + vmovdqa 0x20(%rsp),%ymm0 + vmovdqa 0x60(%rsp),%ymm2 + vpunpcklqdq %ymm2,%ymm0,%ymm1 + vpunpckhqdq %ymm2,%ymm0,%ymm2 + vmovdqa %ymm1,0x20(%rsp) + vmovdqa %ymm2,0x60(%rsp) + vmovdqa %ymm4,%ymm0 + vpunpcklqdq %ymm6,%ymm0,%ymm4 + vpunpckhqdq %ymm6,%ymm0,%ymm6 + vmovdqa %ymm5,%ymm0 + vpunpcklqdq %ymm7,%ymm0,%ymm5 + vpunpckhqdq %ymm7,%ymm0,%ymm7 + vmovdqa %ymm8,%ymm0 + vpunpcklqdq %ymm10,%ymm0,%ymm8 + vpunpckhqdq %ymm10,%ymm0,%ymm10 + vmovdqa %ymm9,%ymm0 + vpunpcklqdq %ymm11,%ymm0,%ymm9 + vpunpckhqdq %ymm11,%ymm0,%ymm11 + vmovdqa %ymm12,%ymm0 + vpunpcklqdq %ymm14,%ymm0,%ymm12 + vpunpckhqdq %ymm14,%ymm0,%ymm14 + vmovdqa %ymm13,%ymm0 + vpunpcklqdq %ymm15,%ymm0,%ymm13 + vpunpckhqdq %ymm15,%ymm0,%ymm15 + + # interleave 128-bit words in state n, n+4 + vmovdqa 0x00(%rsp),%ymm0 + vperm2i128 $0x20,%ymm4,%ymm0,%ymm1 + vperm2i128 $0x31,%ymm4,%ymm0,%ymm4 + vmovdqa %ymm1,0x00(%rsp) + vmovdqa 0x20(%rsp),%ymm0 + vperm2i128 $0x20,%ymm5,%ymm0,%ymm1 + vperm2i128 $0x31,%ymm5,%ymm0,%ymm5 + vmovdqa %ymm1,0x20(%rsp) + vmovdqa 0x40(%rsp),%ymm0 + vperm2i128 $0x20,%ymm6,%ymm0,%ymm1 + vperm2i128 $0x31,%ymm6,%ymm0,%ymm6 + vmovdqa %ymm1,0x40(%rsp) + vmovdqa 0x60(%rsp),%ymm0 + vperm2i128 $0x20,%ymm7,%ymm0,%ymm1 + vperm2i128 $0x31,%ymm7,%ymm0,%ymm7 + vmovdqa %ymm1,0x60(%rsp) + vperm2i128 $0x20,%ymm12,%ymm8,%ymm0 + vperm2i128 $0x31,%ymm12,%ymm8,%ymm12 + vmovdqa %ymm0,%ymm8 + vperm2i128 $0x20,%ymm13,%ymm9,%ymm0 + vperm2i128 $0x31,%ymm13,%ymm9,%ymm13 + vmovdqa %ymm0,%ymm9 + vperm2i128 $0x20,%ymm14,%ymm10,%ymm0 + vperm2i128 $0x31,%ymm14,%ymm10,%ymm14 + vmovdqa %ymm0,%ymm10 + vperm2i128 $0x20,%ymm15,%ymm11,%ymm0 + vperm2i128 $0x31,%ymm15,%ymm11,%ymm15 + vmovdqa %ymm0,%ymm11 + + # xor with corresponding input, write to output + vmovdqa 0x00(%rsp),%ymm0 + vpxor 0x0000(%rdx),%ymm0,%ymm0 + vmovdqu %ymm0,0x0000(%rsi) + vmovdqa 0x20(%rsp),%ymm0 + vpxor 0x0080(%rdx),%ymm0,%ymm0 + vmovdqu %ymm0,0x0080(%rsi) + vmovdqa 0x40(%rsp),%ymm0 + vpxor 0x0040(%rdx),%ymm0,%ymm0 + vmovdqu %ymm0,0x0040(%rsi) + vmovdqa 0x60(%rsp),%ymm0 + vpxor 0x00c0(%rdx),%ymm0,%ymm0 + vmovdqu %ymm0,0x00c0(%rsi) + vpxor 0x0100(%rdx),%ymm4,%ymm4 + vmovdqu %ymm4,0x0100(%rsi) + vpxor 0x0180(%rdx),%ymm5,%ymm5 + vmovdqu %ymm5,0x00180(%rsi) + vpxor 0x0140(%rdx),%ymm6,%ymm6 + vmovdqu %ymm6,0x0140(%rsi) + vpxor 0x01c0(%rdx),%ymm7,%ymm7 + vmovdqu %ymm7,0x01c0(%rsi) + vpxor 0x0020(%rdx),%ymm8,%ymm8 + vmovdqu %ymm8,0x0020(%rsi) + vpxor 0x00a0(%rdx),%ymm9,%ymm9 + vmovdqu %ymm9,0x00a0(%rsi) + vpxor 0x0060(%rdx),%ymm10,%ymm10 + vmovdqu %ymm10,0x0060(%rsi) + vpxor 0x00e0(%rdx),%ymm11,%ymm11 + vmovdqu %ymm11,0x00e0(%rsi) + vpxor 0x0120(%rdx),%ymm12,%ymm12 + vmovdqu %ymm12,0x0120(%rsi) + vpxor 0x01a0(%rdx),%ymm13,%ymm13 + vmovdqu %ymm13,0x01a0(%rsi) + vpxor 0x0160(%rdx),%ymm14,%ymm14 + vmovdqu %ymm14,0x0160(%rsi) + vpxor 0x01e0(%rdx),%ymm15,%ymm15 + vmovdqu %ymm15,0x01e0(%rsi) + + vzeroupper + lea -8(%r10),%rsp + ret +ENDPROC(chacha20_8block_xor_avx2) diff --git a/arch/x86/crypto/chacha20-ssse3-x86_64.S b/arch/x86/crypto/chacha20-ssse3-x86_64.S new file mode 100644 index 000000000..512a2b500 --- /dev/null +++ b/arch/x86/crypto/chacha20-ssse3-x86_64.S @@ -0,0 +1,630 @@ +/* + * ChaCha20 256-bit cipher algorithm, RFC7539, x64 SSSE3 functions + * + * Copyright (C) 2015 Martin Willi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/linkage.h> + +.section .rodata.cst16.ROT8, "aM", @progbits, 16 +.align 16 +ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003 +.section .rodata.cst16.ROT16, "aM", @progbits, 16 +.align 16 +ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302 +.section .rodata.cst16.CTRINC, "aM", @progbits, 16 +.align 16 +CTRINC: .octa 0x00000003000000020000000100000000 + +.text + +ENTRY(chacha20_block_xor_ssse3) + # %rdi: Input state matrix, s + # %rsi: 1 data block output, o + # %rdx: 1 data block input, i + + # This function encrypts one ChaCha20 block by loading the state matrix + # in four SSE registers. It performs matrix operation on four words in + # parallel, but requireds shuffling to rearrange the words after each + # round. 8/16-bit word rotation is done with the slightly better + # performing SSSE3 byte shuffling, 7/12-bit word rotation uses + # traditional shift+OR. + + # x0..3 = s0..3 + movdqa 0x00(%rdi),%xmm0 + movdqa 0x10(%rdi),%xmm1 + movdqa 0x20(%rdi),%xmm2 + movdqa 0x30(%rdi),%xmm3 + movdqa %xmm0,%xmm8 + movdqa %xmm1,%xmm9 + movdqa %xmm2,%xmm10 + movdqa %xmm3,%xmm11 + + movdqa ROT8(%rip),%xmm4 + movdqa ROT16(%rip),%xmm5 + + mov $10,%ecx + +.Ldoubleround: + + # x0 += x1, x3 = rotl32(x3 ^ x0, 16) + paddd %xmm1,%xmm0 + pxor %xmm0,%xmm3 + pshufb %xmm5,%xmm3 + + # x2 += x3, x1 = rotl32(x1 ^ x2, 12) + paddd %xmm3,%xmm2 + pxor %xmm2,%xmm1 + movdqa %xmm1,%xmm6 + pslld $12,%xmm6 + psrld $20,%xmm1 + por %xmm6,%xmm1 + + # x0 += x1, x3 = rotl32(x3 ^ x0, 8) + paddd %xmm1,%xmm0 + pxor %xmm0,%xmm3 + pshufb %xmm4,%xmm3 + + # x2 += x3, x1 = rotl32(x1 ^ x2, 7) + paddd %xmm3,%xmm2 + pxor %xmm2,%xmm1 + movdqa %xmm1,%xmm7 + pslld $7,%xmm7 + psrld $25,%xmm1 + por %xmm7,%xmm1 + + # x1 = shuffle32(x1, MASK(0, 3, 2, 1)) + pshufd $0x39,%xmm1,%xmm1 + # x2 = shuffle32(x2, MASK(1, 0, 3, 2)) + pshufd $0x4e,%xmm2,%xmm2 + # x3 = shuffle32(x3, MASK(2, 1, 0, 3)) + pshufd $0x93,%xmm3,%xmm3 + + # x0 += x1, x3 = rotl32(x3 ^ x0, 16) + paddd %xmm1,%xmm0 + pxor %xmm0,%xmm3 + pshufb %xmm5,%xmm3 + + # x2 += x3, x1 = rotl32(x1 ^ x2, 12) + paddd %xmm3,%xmm2 + pxor %xmm2,%xmm1 + movdqa %xmm1,%xmm6 + pslld $12,%xmm6 + psrld $20,%xmm1 + por %xmm6,%xmm1 + + # x0 += x1, x3 = rotl32(x3 ^ x0, 8) + paddd %xmm1,%xmm0 + pxor %xmm0,%xmm3 + pshufb %xmm4,%xmm3 + + # x2 += x3, x1 = rotl32(x1 ^ x2, 7) + paddd %xmm3,%xmm2 + pxor %xmm2,%xmm1 + movdqa %xmm1,%xmm7 + pslld $7,%xmm7 + psrld $25,%xmm1 + por %xmm7,%xmm1 + + # x1 = shuffle32(x1, MASK(2, 1, 0, 3)) + pshufd $0x93,%xmm1,%xmm1 + # x2 = shuffle32(x2, MASK(1, 0, 3, 2)) + pshufd $0x4e,%xmm2,%xmm2 + # x3 = shuffle32(x3, MASK(0, 3, 2, 1)) + pshufd $0x39,%xmm3,%xmm3 + + dec %ecx + jnz .Ldoubleround + + # o0 = i0 ^ (x0 + s0) + movdqu 0x00(%rdx),%xmm4 + paddd %xmm8,%xmm0 + pxor %xmm4,%xmm0 + movdqu %xmm0,0x00(%rsi) + # o1 = i1 ^ (x1 + s1) + movdqu 0x10(%rdx),%xmm5 + paddd %xmm9,%xmm1 + pxor %xmm5,%xmm1 + movdqu %xmm1,0x10(%rsi) + # o2 = i2 ^ (x2 + s2) + movdqu 0x20(%rdx),%xmm6 + paddd %xmm10,%xmm2 + pxor %xmm6,%xmm2 + movdqu %xmm2,0x20(%rsi) + # o3 = i3 ^ (x3 + s3) + movdqu 0x30(%rdx),%xmm7 + paddd %xmm11,%xmm3 + pxor %xmm7,%xmm3 + movdqu %xmm3,0x30(%rsi) + + ret +ENDPROC(chacha20_block_xor_ssse3) + +ENTRY(chacha20_4block_xor_ssse3) + # %rdi: Input state matrix, s + # %rsi: 4 data blocks output, o + # %rdx: 4 data blocks input, i + + # This function encrypts four consecutive ChaCha20 blocks by loading the + # the state matrix in SSE registers four times. As we need some scratch + # registers, we save the first four registers on the stack. The + # algorithm performs each operation on the corresponding word of each + # state matrix, hence requires no word shuffling. For final XORing step + # we transpose the matrix by interleaving 32- and then 64-bit words, + # which allows us to do XOR in SSE registers. 8/16-bit word rotation is + # done with the slightly better performing SSSE3 byte shuffling, + # 7/12-bit word rotation uses traditional shift+OR. + + lea 8(%rsp),%r10 + sub $0x80,%rsp + and $~63,%rsp + + # x0..15[0-3] = s0..3[0..3] + movq 0x00(%rdi),%xmm1 + pshufd $0x00,%xmm1,%xmm0 + pshufd $0x55,%xmm1,%xmm1 + movq 0x08(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + movq 0x10(%rdi),%xmm5 + pshufd $0x00,%xmm5,%xmm4 + pshufd $0x55,%xmm5,%xmm5 + movq 0x18(%rdi),%xmm7 + pshufd $0x00,%xmm7,%xmm6 + pshufd $0x55,%xmm7,%xmm7 + movq 0x20(%rdi),%xmm9 + pshufd $0x00,%xmm9,%xmm8 + pshufd $0x55,%xmm9,%xmm9 + movq 0x28(%rdi),%xmm11 + pshufd $0x00,%xmm11,%xmm10 + pshufd $0x55,%xmm11,%xmm11 + movq 0x30(%rdi),%xmm13 + pshufd $0x00,%xmm13,%xmm12 + pshufd $0x55,%xmm13,%xmm13 + movq 0x38(%rdi),%xmm15 + pshufd $0x00,%xmm15,%xmm14 + pshufd $0x55,%xmm15,%xmm15 + # x0..3 on stack + movdqa %xmm0,0x00(%rsp) + movdqa %xmm1,0x10(%rsp) + movdqa %xmm2,0x20(%rsp) + movdqa %xmm3,0x30(%rsp) + + movdqa CTRINC(%rip),%xmm1 + movdqa ROT8(%rip),%xmm2 + movdqa ROT16(%rip),%xmm3 + + # x12 += counter values 0-3 + paddd %xmm1,%xmm12 + + mov $10,%ecx + +.Ldoubleround4: + # x0 += x4, x12 = rotl32(x12 ^ x0, 16) + movdqa 0x00(%rsp),%xmm0 + paddd %xmm4,%xmm0 + movdqa %xmm0,0x00(%rsp) + pxor %xmm0,%xmm12 + pshufb %xmm3,%xmm12 + # x1 += x5, x13 = rotl32(x13 ^ x1, 16) + movdqa 0x10(%rsp),%xmm0 + paddd %xmm5,%xmm0 + movdqa %xmm0,0x10(%rsp) + pxor %xmm0,%xmm13 + pshufb %xmm3,%xmm13 + # x2 += x6, x14 = rotl32(x14 ^ x2, 16) + movdqa 0x20(%rsp),%xmm0 + paddd %xmm6,%xmm0 + movdqa %xmm0,0x20(%rsp) + pxor %xmm0,%xmm14 + pshufb %xmm3,%xmm14 + # x3 += x7, x15 = rotl32(x15 ^ x3, 16) + movdqa 0x30(%rsp),%xmm0 + paddd %xmm7,%xmm0 + movdqa %xmm0,0x30(%rsp) + pxor %xmm0,%xmm15 + pshufb %xmm3,%xmm15 + + # x8 += x12, x4 = rotl32(x4 ^ x8, 12) + paddd %xmm12,%xmm8 + pxor %xmm8,%xmm4 + movdqa %xmm4,%xmm0 + pslld $12,%xmm0 + psrld $20,%xmm4 + por %xmm0,%xmm4 + # x9 += x13, x5 = rotl32(x5 ^ x9, 12) + paddd %xmm13,%xmm9 + pxor %xmm9,%xmm5 + movdqa %xmm5,%xmm0 + pslld $12,%xmm0 + psrld $20,%xmm5 + por %xmm0,%xmm5 + # x10 += x14, x6 = rotl32(x6 ^ x10, 12) + paddd %xmm14,%xmm10 + pxor %xmm10,%xmm6 + movdqa %xmm6,%xmm0 + pslld $12,%xmm0 + psrld $20,%xmm6 + por %xmm0,%xmm6 + # x11 += x15, x7 = rotl32(x7 ^ x11, 12) + paddd %xmm15,%xmm11 + pxor %xmm11,%xmm7 + movdqa %xmm7,%xmm0 + pslld $12,%xmm0 + psrld $20,%xmm7 + por %xmm0,%xmm7 + + # x0 += x4, x12 = rotl32(x12 ^ x0, 8) + movdqa 0x00(%rsp),%xmm0 + paddd %xmm4,%xmm0 + movdqa %xmm0,0x00(%rsp) + pxor %xmm0,%xmm12 + pshufb %xmm2,%xmm12 + # x1 += x5, x13 = rotl32(x13 ^ x1, 8) + movdqa 0x10(%rsp),%xmm0 + paddd %xmm5,%xmm0 + movdqa %xmm0,0x10(%rsp) + pxor %xmm0,%xmm13 + pshufb %xmm2,%xmm13 + # x2 += x6, x14 = rotl32(x14 ^ x2, 8) + movdqa 0x20(%rsp),%xmm0 + paddd %xmm6,%xmm0 + movdqa %xmm0,0x20(%rsp) + pxor %xmm0,%xmm14 + pshufb %xmm2,%xmm14 + # x3 += x7, x15 = rotl32(x15 ^ x3, 8) + movdqa 0x30(%rsp),%xmm0 + paddd %xmm7,%xmm0 + movdqa %xmm0,0x30(%rsp) + pxor %xmm0,%xmm15 + pshufb %xmm2,%xmm15 + + # x8 += x12, x4 = rotl32(x4 ^ x8, 7) + paddd %xmm12,%xmm8 + pxor %xmm8,%xmm4 + movdqa %xmm4,%xmm0 + pslld $7,%xmm0 + psrld $25,%xmm4 + por %xmm0,%xmm4 + # x9 += x13, x5 = rotl32(x5 ^ x9, 7) + paddd %xmm13,%xmm9 + pxor %xmm9,%xmm5 + movdqa %xmm5,%xmm0 + pslld $7,%xmm0 + psrld $25,%xmm5 + por %xmm0,%xmm5 + # x10 += x14, x6 = rotl32(x6 ^ x10, 7) + paddd %xmm14,%xmm10 + pxor %xmm10,%xmm6 + movdqa %xmm6,%xmm0 + pslld $7,%xmm0 + psrld $25,%xmm6 + por %xmm0,%xmm6 + # x11 += x15, x7 = rotl32(x7 ^ x11, 7) + paddd %xmm15,%xmm11 + pxor %xmm11,%xmm7 + movdqa %xmm7,%xmm0 + pslld $7,%xmm0 + psrld $25,%xmm7 + por %xmm0,%xmm7 + + # x0 += x5, x15 = rotl32(x15 ^ x0, 16) + movdqa 0x00(%rsp),%xmm0 + paddd %xmm5,%xmm0 + movdqa %xmm0,0x00(%rsp) + pxor %xmm0,%xmm15 + pshufb %xmm3,%xmm15 + # x1 += x6, x12 = rotl32(x12 ^ x1, 16) + movdqa 0x10(%rsp),%xmm0 + paddd %xmm6,%xmm0 + movdqa %xmm0,0x10(%rsp) + pxor %xmm0,%xmm12 + pshufb %xmm3,%xmm12 + # x2 += x7, x13 = rotl32(x13 ^ x2, 16) + movdqa 0x20(%rsp),%xmm0 + paddd %xmm7,%xmm0 + movdqa %xmm0,0x20(%rsp) + pxor %xmm0,%xmm13 + pshufb %xmm3,%xmm13 + # x3 += x4, x14 = rotl32(x14 ^ x3, 16) + movdqa 0x30(%rsp),%xmm0 + paddd %xmm4,%xmm0 + movdqa %xmm0,0x30(%rsp) + pxor %xmm0,%xmm14 + pshufb %xmm3,%xmm14 + + # x10 += x15, x5 = rotl32(x5 ^ x10, 12) + paddd %xmm15,%xmm10 + pxor %xmm10,%xmm5 + movdqa %xmm5,%xmm0 + pslld $12,%xmm0 + psrld $20,%xmm5 + por %xmm0,%xmm5 + # x11 += x12, x6 = rotl32(x6 ^ x11, 12) + paddd %xmm12,%xmm11 + pxor %xmm11,%xmm6 + movdqa %xmm6,%xmm0 + pslld $12,%xmm0 + psrld $20,%xmm6 + por %xmm0,%xmm6 + # x8 += x13, x7 = rotl32(x7 ^ x8, 12) + paddd %xmm13,%xmm8 + pxor %xmm8,%xmm7 + movdqa %xmm7,%xmm0 + pslld $12,%xmm0 + psrld $20,%xmm7 + por %xmm0,%xmm7 + # x9 += x14, x4 = rotl32(x4 ^ x9, 12) + paddd %xmm14,%xmm9 + pxor %xmm9,%xmm4 + movdqa %xmm4,%xmm0 + pslld $12,%xmm0 + psrld $20,%xmm4 + por %xmm0,%xmm4 + + # x0 += x5, x15 = rotl32(x15 ^ x0, 8) + movdqa 0x00(%rsp),%xmm0 + paddd %xmm5,%xmm0 + movdqa %xmm0,0x00(%rsp) + pxor %xmm0,%xmm15 + pshufb %xmm2,%xmm15 + # x1 += x6, x12 = rotl32(x12 ^ x1, 8) + movdqa 0x10(%rsp),%xmm0 + paddd %xmm6,%xmm0 + movdqa %xmm0,0x10(%rsp) + pxor %xmm0,%xmm12 + pshufb %xmm2,%xmm12 + # x2 += x7, x13 = rotl32(x13 ^ x2, 8) + movdqa 0x20(%rsp),%xmm0 + paddd %xmm7,%xmm0 + movdqa %xmm0,0x20(%rsp) + pxor %xmm0,%xmm13 + pshufb %xmm2,%xmm13 + # x3 += x4, x14 = rotl32(x14 ^ x3, 8) + movdqa 0x30(%rsp),%xmm0 + paddd %xmm4,%xmm0 + movdqa %xmm0,0x30(%rsp) + pxor %xmm0,%xmm14 + pshufb %xmm2,%xmm14 + + # x10 += x15, x5 = rotl32(x5 ^ x10, 7) + paddd %xmm15,%xmm10 + pxor %xmm10,%xmm5 + movdqa %xmm5,%xmm0 + pslld $7,%xmm0 + psrld $25,%xmm5 + por %xmm0,%xmm5 + # x11 += x12, x6 = rotl32(x6 ^ x11, 7) + paddd %xmm12,%xmm11 + pxor %xmm11,%xmm6 + movdqa %xmm6,%xmm0 + pslld $7,%xmm0 + psrld $25,%xmm6 + por %xmm0,%xmm6 + # x8 += x13, x7 = rotl32(x7 ^ x8, 7) + paddd %xmm13,%xmm8 + pxor %xmm8,%xmm7 + movdqa %xmm7,%xmm0 + pslld $7,%xmm0 + psrld $25,%xmm7 + por %xmm0,%xmm7 + # x9 += x14, x4 = rotl32(x4 ^ x9, 7) + paddd %xmm14,%xmm9 + pxor %xmm9,%xmm4 + movdqa %xmm4,%xmm0 + pslld $7,%xmm0 + psrld $25,%xmm4 + por %xmm0,%xmm4 + + dec %ecx + jnz .Ldoubleround4 + + # x0[0-3] += s0[0] + # x1[0-3] += s0[1] + movq 0x00(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + paddd 0x00(%rsp),%xmm2 + movdqa %xmm2,0x00(%rsp) + paddd 0x10(%rsp),%xmm3 + movdqa %xmm3,0x10(%rsp) + # x2[0-3] += s0[2] + # x3[0-3] += s0[3] + movq 0x08(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + paddd 0x20(%rsp),%xmm2 + movdqa %xmm2,0x20(%rsp) + paddd 0x30(%rsp),%xmm3 + movdqa %xmm3,0x30(%rsp) + + # x4[0-3] += s1[0] + # x5[0-3] += s1[1] + movq 0x10(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + paddd %xmm2,%xmm4 + paddd %xmm3,%xmm5 + # x6[0-3] += s1[2] + # x7[0-3] += s1[3] + movq 0x18(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + paddd %xmm2,%xmm6 + paddd %xmm3,%xmm7 + + # x8[0-3] += s2[0] + # x9[0-3] += s2[1] + movq 0x20(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + paddd %xmm2,%xmm8 + paddd %xmm3,%xmm9 + # x10[0-3] += s2[2] + # x11[0-3] += s2[3] + movq 0x28(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + paddd %xmm2,%xmm10 + paddd %xmm3,%xmm11 + + # x12[0-3] += s3[0] + # x13[0-3] += s3[1] + movq 0x30(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + paddd %xmm2,%xmm12 + paddd %xmm3,%xmm13 + # x14[0-3] += s3[2] + # x15[0-3] += s3[3] + movq 0x38(%rdi),%xmm3 + pshufd $0x00,%xmm3,%xmm2 + pshufd $0x55,%xmm3,%xmm3 + paddd %xmm2,%xmm14 + paddd %xmm3,%xmm15 + + # x12 += counter values 0-3 + paddd %xmm1,%xmm12 + + # interleave 32-bit words in state n, n+1 + movdqa 0x00(%rsp),%xmm0 + movdqa 0x10(%rsp),%xmm1 + movdqa %xmm0,%xmm2 + punpckldq %xmm1,%xmm2 + punpckhdq %xmm1,%xmm0 + movdqa %xmm2,0x00(%rsp) + movdqa %xmm0,0x10(%rsp) + movdqa 0x20(%rsp),%xmm0 + movdqa 0x30(%rsp),%xmm1 + movdqa %xmm0,%xmm2 + punpckldq %xmm1,%xmm2 + punpckhdq %xmm1,%xmm0 + movdqa %xmm2,0x20(%rsp) + movdqa %xmm0,0x30(%rsp) + movdqa %xmm4,%xmm0 + punpckldq %xmm5,%xmm4 + punpckhdq %xmm5,%xmm0 + movdqa %xmm0,%xmm5 + movdqa %xmm6,%xmm0 + punpckldq %xmm7,%xmm6 + punpckhdq %xmm7,%xmm0 + movdqa %xmm0,%xmm7 + movdqa %xmm8,%xmm0 + punpckldq %xmm9,%xmm8 + punpckhdq %xmm9,%xmm0 + movdqa %xmm0,%xmm9 + movdqa %xmm10,%xmm0 + punpckldq %xmm11,%xmm10 + punpckhdq %xmm11,%xmm0 + movdqa %xmm0,%xmm11 + movdqa %xmm12,%xmm0 + punpckldq %xmm13,%xmm12 + punpckhdq %xmm13,%xmm0 + movdqa %xmm0,%xmm13 + movdqa %xmm14,%xmm0 + punpckldq %xmm15,%xmm14 + punpckhdq %xmm15,%xmm0 + movdqa %xmm0,%xmm15 + + # interleave 64-bit words in state n, n+2 + movdqa 0x00(%rsp),%xmm0 + movdqa 0x20(%rsp),%xmm1 + movdqa %xmm0,%xmm2 + punpcklqdq %xmm1,%xmm2 + punpckhqdq %xmm1,%xmm0 + movdqa %xmm2,0x00(%rsp) + movdqa %xmm0,0x20(%rsp) + movdqa 0x10(%rsp),%xmm0 + movdqa 0x30(%rsp),%xmm1 + movdqa %xmm0,%xmm2 + punpcklqdq %xmm1,%xmm2 + punpckhqdq %xmm1,%xmm0 + movdqa %xmm2,0x10(%rsp) + movdqa %xmm0,0x30(%rsp) + movdqa %xmm4,%xmm0 + punpcklqdq %xmm6,%xmm4 + punpckhqdq %xmm6,%xmm0 + movdqa %xmm0,%xmm6 + movdqa %xmm5,%xmm0 + punpcklqdq %xmm7,%xmm5 + punpckhqdq %xmm7,%xmm0 + movdqa %xmm0,%xmm7 + movdqa %xmm8,%xmm0 + punpcklqdq %xmm10,%xmm8 + punpckhqdq %xmm10,%xmm0 + movdqa %xmm0,%xmm10 + movdqa %xmm9,%xmm0 + punpcklqdq %xmm11,%xmm9 + punpckhqdq %xmm11,%xmm0 + movdqa %xmm0,%xmm11 + movdqa %xmm12,%xmm0 + punpcklqdq %xmm14,%xmm12 + punpckhqdq %xmm14,%xmm0 + movdqa %xmm0,%xmm14 + movdqa %xmm13,%xmm0 + punpcklqdq %xmm15,%xmm13 + punpckhqdq %xmm15,%xmm0 + movdqa %xmm0,%xmm15 + + # xor with corresponding input, write to output + movdqa 0x00(%rsp),%xmm0 + movdqu 0x00(%rdx),%xmm1 + pxor %xmm1,%xmm0 + movdqu %xmm0,0x00(%rsi) + movdqa 0x10(%rsp),%xmm0 + movdqu 0x80(%rdx),%xmm1 + pxor %xmm1,%xmm0 + movdqu %xmm0,0x80(%rsi) + movdqa 0x20(%rsp),%xmm0 + movdqu 0x40(%rdx),%xmm1 + pxor %xmm1,%xmm0 + movdqu %xmm0,0x40(%rsi) + movdqa 0x30(%rsp),%xmm0 + movdqu 0xc0(%rdx),%xmm1 + pxor %xmm1,%xmm0 + movdqu %xmm0,0xc0(%rsi) + movdqu 0x10(%rdx),%xmm1 + pxor %xmm1,%xmm4 + movdqu %xmm4,0x10(%rsi) + movdqu 0x90(%rdx),%xmm1 + pxor %xmm1,%xmm5 + movdqu %xmm5,0x90(%rsi) + movdqu 0x50(%rdx),%xmm1 + pxor %xmm1,%xmm6 + movdqu %xmm6,0x50(%rsi) + movdqu 0xd0(%rdx),%xmm1 + pxor %xmm1,%xmm7 + movdqu %xmm7,0xd0(%rsi) + movdqu 0x20(%rdx),%xmm1 + pxor %xmm1,%xmm8 + movdqu %xmm8,0x20(%rsi) + movdqu 0xa0(%rdx),%xmm1 + pxor %xmm1,%xmm9 + movdqu %xmm9,0xa0(%rsi) + movdqu 0x60(%rdx),%xmm1 + pxor %xmm1,%xmm10 + movdqu %xmm10,0x60(%rsi) + movdqu 0xe0(%rdx),%xmm1 + pxor %xmm1,%xmm11 + movdqu %xmm11,0xe0(%rsi) + movdqu 0x30(%rdx),%xmm1 + pxor %xmm1,%xmm12 + movdqu %xmm12,0x30(%rsi) + movdqu 0xb0(%rdx),%xmm1 + pxor %xmm1,%xmm13 + movdqu %xmm13,0xb0(%rsi) + movdqu 0x70(%rdx),%xmm1 + pxor %xmm1,%xmm14 + movdqu %xmm14,0x70(%rsi) + movdqu 0xf0(%rdx),%xmm1 + pxor %xmm1,%xmm15 + movdqu %xmm15,0xf0(%rsi) + + lea -8(%r10),%rsp + ret +ENDPROC(chacha20_4block_xor_ssse3) diff --git a/arch/x86/crypto/chacha20_glue.c b/arch/x86/crypto/chacha20_glue.c new file mode 100644 index 000000000..dce7c5d39 --- /dev/null +++ b/arch/x86/crypto/chacha20_glue.c @@ -0,0 +1,146 @@ +/* + * ChaCha20 256-bit cipher algorithm, RFC7539, SIMD glue code + * + * Copyright (C) 2015 Martin Willi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <crypto/algapi.h> +#include <crypto/chacha20.h> +#include <crypto/internal/skcipher.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <asm/fpu/api.h> +#include <asm/simd.h> + +#define CHACHA20_STATE_ALIGN 16 + +asmlinkage void chacha20_block_xor_ssse3(u32 *state, u8 *dst, const u8 *src); +asmlinkage void chacha20_4block_xor_ssse3(u32 *state, u8 *dst, const u8 *src); +#ifdef CONFIG_AS_AVX2 +asmlinkage void chacha20_8block_xor_avx2(u32 *state, u8 *dst, const u8 *src); +static bool chacha20_use_avx2; +#endif + +static void chacha20_dosimd(u32 *state, u8 *dst, const u8 *src, + unsigned int bytes) +{ + u8 buf[CHACHA20_BLOCK_SIZE]; + +#ifdef CONFIG_AS_AVX2 + if (chacha20_use_avx2) { + while (bytes >= CHACHA20_BLOCK_SIZE * 8) { + chacha20_8block_xor_avx2(state, dst, src); + bytes -= CHACHA20_BLOCK_SIZE * 8; + src += CHACHA20_BLOCK_SIZE * 8; + dst += CHACHA20_BLOCK_SIZE * 8; + state[12] += 8; + } + } +#endif + while (bytes >= CHACHA20_BLOCK_SIZE * 4) { + chacha20_4block_xor_ssse3(state, dst, src); + bytes -= CHACHA20_BLOCK_SIZE * 4; + src += CHACHA20_BLOCK_SIZE * 4; + dst += CHACHA20_BLOCK_SIZE * 4; + state[12] += 4; + } + while (bytes >= CHACHA20_BLOCK_SIZE) { + chacha20_block_xor_ssse3(state, dst, src); + bytes -= CHACHA20_BLOCK_SIZE; + src += CHACHA20_BLOCK_SIZE; + dst += CHACHA20_BLOCK_SIZE; + state[12]++; + } + if (bytes) { + memcpy(buf, src, bytes); + chacha20_block_xor_ssse3(state, buf, buf); + memcpy(dst, buf, bytes); + } +} + +static int chacha20_simd(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct chacha20_ctx *ctx = crypto_skcipher_ctx(tfm); + u32 *state, state_buf[16 + 2] __aligned(8); + struct skcipher_walk walk; + int err; + + BUILD_BUG_ON(CHACHA20_STATE_ALIGN != 16); + state = PTR_ALIGN(state_buf + 0, CHACHA20_STATE_ALIGN); + + if (req->cryptlen <= CHACHA20_BLOCK_SIZE || !may_use_simd()) + return crypto_chacha20_crypt(req); + + err = skcipher_walk_virt(&walk, req, true); + + crypto_chacha20_init(state, ctx, walk.iv); + + kernel_fpu_begin(); + + while (walk.nbytes >= CHACHA20_BLOCK_SIZE) { + chacha20_dosimd(state, walk.dst.virt.addr, walk.src.virt.addr, + rounddown(walk.nbytes, CHACHA20_BLOCK_SIZE)); + err = skcipher_walk_done(&walk, + walk.nbytes % CHACHA20_BLOCK_SIZE); + } + + if (walk.nbytes) { + chacha20_dosimd(state, walk.dst.virt.addr, walk.src.virt.addr, + walk.nbytes); + err = skcipher_walk_done(&walk, 0); + } + + kernel_fpu_end(); + + return err; +} + +static struct skcipher_alg alg = { + .base.cra_name = "chacha20", + .base.cra_driver_name = "chacha20-simd", + .base.cra_priority = 300, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct chacha20_ctx), + .base.cra_module = THIS_MODULE, + + .min_keysize = CHACHA20_KEY_SIZE, + .max_keysize = CHACHA20_KEY_SIZE, + .ivsize = CHACHA20_IV_SIZE, + .chunksize = CHACHA20_BLOCK_SIZE, + .setkey = crypto_chacha20_setkey, + .encrypt = chacha20_simd, + .decrypt = chacha20_simd, +}; + +static int __init chacha20_simd_mod_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_SSSE3)) + return -ENODEV; + +#ifdef CONFIG_AS_AVX2 + chacha20_use_avx2 = boot_cpu_has(X86_FEATURE_AVX) && + boot_cpu_has(X86_FEATURE_AVX2) && + cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL); +#endif + return crypto_register_skcipher(&alg); +} + +static void __exit chacha20_simd_mod_fini(void) +{ + crypto_unregister_skcipher(&alg); +} + +module_init(chacha20_simd_mod_init); +module_exit(chacha20_simd_mod_fini); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Martin Willi <martin@strongswan.org>"); +MODULE_DESCRIPTION("chacha20 cipher algorithm, SIMD accelerated"); +MODULE_ALIAS_CRYPTO("chacha20"); +MODULE_ALIAS_CRYPTO("chacha20-simd"); diff --git a/arch/x86/crypto/crc32-pclmul_asm.S b/arch/x86/crypto/crc32-pclmul_asm.S new file mode 100644 index 000000000..1c099dc08 --- /dev/null +++ b/arch/x86/crypto/crc32-pclmul_asm.S @@ -0,0 +1,241 @@ +/* GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see http://www.gnu.org/licenses + * + * Please visit http://www.xyratex.com/contact if you need additional + * information or have any questions. + * + * GPL HEADER END + */ + +/* + * Copyright 2012 Xyratex Technology Limited + * + * Using hardware provided PCLMULQDQ instruction to accelerate the CRC32 + * calculation. + * CRC32 polynomial:0x04c11db7(BE)/0xEDB88320(LE) + * PCLMULQDQ is a new instruction in Intel SSE4.2, the reference can be found + * at: + * http://www.intel.com/products/processor/manuals/ + * Intel(R) 64 and IA-32 Architectures Software Developer's Manual + * Volume 2B: Instruction Set Reference, N-Z + * + * Authors: Gregory Prestas <Gregory_Prestas@us.xyratex.com> + * Alexander Boyko <Alexander_Boyko@xyratex.com> + */ + +#include <linux/linkage.h> +#include <asm/inst.h> + + +.section .rodata +.align 16 +/* + * [x4*128+32 mod P(x) << 32)]' << 1 = 0x154442bd4 + * #define CONSTANT_R1 0x154442bd4LL + * + * [(x4*128-32 mod P(x) << 32)]' << 1 = 0x1c6e41596 + * #define CONSTANT_R2 0x1c6e41596LL + */ +.Lconstant_R2R1: + .octa 0x00000001c6e415960000000154442bd4 +/* + * [(x128+32 mod P(x) << 32)]' << 1 = 0x1751997d0 + * #define CONSTANT_R3 0x1751997d0LL + * + * [(x128-32 mod P(x) << 32)]' << 1 = 0x0ccaa009e + * #define CONSTANT_R4 0x0ccaa009eLL + */ +.Lconstant_R4R3: + .octa 0x00000000ccaa009e00000001751997d0 +/* + * [(x64 mod P(x) << 32)]' << 1 = 0x163cd6124 + * #define CONSTANT_R5 0x163cd6124LL + */ +.Lconstant_R5: + .octa 0x00000000000000000000000163cd6124 +.Lconstant_mask32: + .octa 0x000000000000000000000000FFFFFFFF +/* + * #define CRCPOLY_TRUE_LE_FULL 0x1DB710641LL + * + * Barrett Reduction constant (u64`) = u` = (x**64 / P(x))` = 0x1F7011641LL + * #define CONSTANT_RU 0x1F7011641LL + */ +.Lconstant_RUpoly: + .octa 0x00000001F701164100000001DB710641 + +#define CONSTANT %xmm0 + +#ifdef __x86_64__ +#define BUF %rdi +#define LEN %rsi +#define CRC %edx +#else +#define BUF %eax +#define LEN %edx +#define CRC %ecx +#endif + + + +.text +/** + * Calculate crc32 + * BUF - buffer (16 bytes aligned) + * LEN - sizeof buffer (16 bytes aligned), LEN should be grater than 63 + * CRC - initial crc32 + * return %eax crc32 + * uint crc32_pclmul_le_16(unsigned char const *buffer, + * size_t len, uint crc32) + */ + +ENTRY(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */ + movdqa (BUF), %xmm1 + movdqa 0x10(BUF), %xmm2 + movdqa 0x20(BUF), %xmm3 + movdqa 0x30(BUF), %xmm4 + movd CRC, CONSTANT + pxor CONSTANT, %xmm1 + sub $0x40, LEN + add $0x40, BUF + cmp $0x40, LEN + jb less_64 + +#ifdef __x86_64__ + movdqa .Lconstant_R2R1(%rip), CONSTANT +#else + movdqa .Lconstant_R2R1, CONSTANT +#endif + +loop_64:/* 64 bytes Full cache line folding */ + prefetchnta 0x40(BUF) + movdqa %xmm1, %xmm5 + movdqa %xmm2, %xmm6 + movdqa %xmm3, %xmm7 +#ifdef __x86_64__ + movdqa %xmm4, %xmm8 +#endif + PCLMULQDQ 00, CONSTANT, %xmm1 + PCLMULQDQ 00, CONSTANT, %xmm2 + PCLMULQDQ 00, CONSTANT, %xmm3 +#ifdef __x86_64__ + PCLMULQDQ 00, CONSTANT, %xmm4 +#endif + PCLMULQDQ 0x11, CONSTANT, %xmm5 + PCLMULQDQ 0x11, CONSTANT, %xmm6 + PCLMULQDQ 0x11, CONSTANT, %xmm7 +#ifdef __x86_64__ + PCLMULQDQ 0x11, CONSTANT, %xmm8 +#endif + pxor %xmm5, %xmm1 + pxor %xmm6, %xmm2 + pxor %xmm7, %xmm3 +#ifdef __x86_64__ + pxor %xmm8, %xmm4 +#else + /* xmm8 unsupported for x32 */ + movdqa %xmm4, %xmm5 + PCLMULQDQ 00, CONSTANT, %xmm4 + PCLMULQDQ 0x11, CONSTANT, %xmm5 + pxor %xmm5, %xmm4 +#endif + + pxor (BUF), %xmm1 + pxor 0x10(BUF), %xmm2 + pxor 0x20(BUF), %xmm3 + pxor 0x30(BUF), %xmm4 + + sub $0x40, LEN + add $0x40, BUF + cmp $0x40, LEN + jge loop_64 +less_64:/* Folding cache line into 128bit */ +#ifdef __x86_64__ + movdqa .Lconstant_R4R3(%rip), CONSTANT +#else + movdqa .Lconstant_R4R3, CONSTANT +#endif + prefetchnta (BUF) + + movdqa %xmm1, %xmm5 + PCLMULQDQ 0x00, CONSTANT, %xmm1 + PCLMULQDQ 0x11, CONSTANT, %xmm5 + pxor %xmm5, %xmm1 + pxor %xmm2, %xmm1 + + movdqa %xmm1, %xmm5 + PCLMULQDQ 0x00, CONSTANT, %xmm1 + PCLMULQDQ 0x11, CONSTANT, %xmm5 + pxor %xmm5, %xmm1 + pxor %xmm3, %xmm1 + + movdqa %xmm1, %xmm5 + PCLMULQDQ 0x00, CONSTANT, %xmm1 + PCLMULQDQ 0x11, CONSTANT, %xmm5 + pxor %xmm5, %xmm1 + pxor %xmm4, %xmm1 + + cmp $0x10, LEN + jb fold_64 +loop_16:/* Folding rest buffer into 128bit */ + movdqa %xmm1, %xmm5 + PCLMULQDQ 0x00, CONSTANT, %xmm1 + PCLMULQDQ 0x11, CONSTANT, %xmm5 + pxor %xmm5, %xmm1 + pxor (BUF), %xmm1 + sub $0x10, LEN + add $0x10, BUF + cmp $0x10, LEN + jge loop_16 + +fold_64: + /* perform the last 64 bit fold, also adds 32 zeroes + * to the input stream */ + PCLMULQDQ 0x01, %xmm1, CONSTANT /* R4 * xmm1.low */ + psrldq $0x08, %xmm1 + pxor CONSTANT, %xmm1 + + /* final 32-bit fold */ + movdqa %xmm1, %xmm2 +#ifdef __x86_64__ + movdqa .Lconstant_R5(%rip), CONSTANT + movdqa .Lconstant_mask32(%rip), %xmm3 +#else + movdqa .Lconstant_R5, CONSTANT + movdqa .Lconstant_mask32, %xmm3 +#endif + psrldq $0x04, %xmm2 + pand %xmm3, %xmm1 + PCLMULQDQ 0x00, CONSTANT, %xmm1 + pxor %xmm2, %xmm1 + + /* Finish up with the bit-reversed barrett reduction 64 ==> 32 bits */ +#ifdef __x86_64__ + movdqa .Lconstant_RUpoly(%rip), CONSTANT +#else + movdqa .Lconstant_RUpoly, CONSTANT +#endif + movdqa %xmm1, %xmm2 + pand %xmm3, %xmm1 + PCLMULQDQ 0x10, CONSTANT, %xmm1 + pand %xmm3, %xmm1 + PCLMULQDQ 0x00, CONSTANT, %xmm1 + pxor %xmm2, %xmm1 + PEXTRD 0x01, %xmm1, %eax + + ret +ENDPROC(crc32_pclmul_le_16) diff --git a/arch/x86/crypto/crc32-pclmul_glue.c b/arch/x86/crypto/crc32-pclmul_glue.c new file mode 100644 index 000000000..c8d9cdacb --- /dev/null +++ b/arch/x86/crypto/crc32-pclmul_glue.c @@ -0,0 +1,202 @@ +/* GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see http://www.gnu.org/licenses + * + * Please visit http://www.xyratex.com/contact if you need additional + * information or have any questions. + * + * GPL HEADER END + */ + +/* + * Copyright 2012 Xyratex Technology Limited + * + * Wrappers for kernel crypto shash api to pclmulqdq crc32 imlementation. + */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/crc32.h> +#include <crypto/internal/hash.h> + +#include <asm/cpufeatures.h> +#include <asm/cpu_device_id.h> +#include <asm/fpu/api.h> + +#define CHKSUM_BLOCK_SIZE 1 +#define CHKSUM_DIGEST_SIZE 4 + +#define PCLMUL_MIN_LEN 64L /* minimum size of buffer + * for crc32_pclmul_le_16 */ +#define SCALE_F 16L /* size of xmm register */ +#define SCALE_F_MASK (SCALE_F - 1) + +u32 crc32_pclmul_le_16(unsigned char const *buffer, size_t len, u32 crc32); + +static u32 __attribute__((pure)) + crc32_pclmul_le(u32 crc, unsigned char const *p, size_t len) +{ + unsigned int iquotient; + unsigned int iremainder; + unsigned int prealign; + + if (len < PCLMUL_MIN_LEN + SCALE_F_MASK || !irq_fpu_usable()) + return crc32_le(crc, p, len); + + if ((long)p & SCALE_F_MASK) { + /* align p to 16 byte */ + prealign = SCALE_F - ((long)p & SCALE_F_MASK); + + crc = crc32_le(crc, p, prealign); + len -= prealign; + p = (unsigned char *)(((unsigned long)p + SCALE_F_MASK) & + ~SCALE_F_MASK); + } + iquotient = len & (~SCALE_F_MASK); + iremainder = len & SCALE_F_MASK; + + kernel_fpu_begin(); + crc = crc32_pclmul_le_16(p, iquotient, crc); + kernel_fpu_end(); + + if (iremainder) + crc = crc32_le(crc, p + iquotient, iremainder); + + return crc; +} + +static int crc32_pclmul_cra_init(struct crypto_tfm *tfm) +{ + u32 *key = crypto_tfm_ctx(tfm); + + *key = 0; + + return 0; +} + +static int crc32_pclmul_setkey(struct crypto_shash *hash, const u8 *key, + unsigned int keylen) +{ + u32 *mctx = crypto_shash_ctx(hash); + + if (keylen != sizeof(u32)) { + crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + *mctx = le32_to_cpup((__le32 *)key); + return 0; +} + +static int crc32_pclmul_init(struct shash_desc *desc) +{ + u32 *mctx = crypto_shash_ctx(desc->tfm); + u32 *crcp = shash_desc_ctx(desc); + + *crcp = *mctx; + + return 0; +} + +static int crc32_pclmul_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + u32 *crcp = shash_desc_ctx(desc); + + *crcp = crc32_pclmul_le(*crcp, data, len); + return 0; +} + +/* No final XOR 0xFFFFFFFF, like crc32_le */ +static int __crc32_pclmul_finup(u32 *crcp, const u8 *data, unsigned int len, + u8 *out) +{ + *(__le32 *)out = cpu_to_le32(crc32_pclmul_le(*crcp, data, len)); + return 0; +} + +static int crc32_pclmul_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return __crc32_pclmul_finup(shash_desc_ctx(desc), data, len, out); +} + +static int crc32_pclmul_final(struct shash_desc *desc, u8 *out) +{ + u32 *crcp = shash_desc_ctx(desc); + + *(__le32 *)out = cpu_to_le32p(crcp); + return 0; +} + +static int crc32_pclmul_digest(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return __crc32_pclmul_finup(crypto_shash_ctx(desc->tfm), data, len, + out); +} + +static struct shash_alg alg = { + .setkey = crc32_pclmul_setkey, + .init = crc32_pclmul_init, + .update = crc32_pclmul_update, + .final = crc32_pclmul_final, + .finup = crc32_pclmul_finup, + .digest = crc32_pclmul_digest, + .descsize = sizeof(u32), + .digestsize = CHKSUM_DIGEST_SIZE, + .base = { + .cra_name = "crc32", + .cra_driver_name = "crc32-pclmul", + .cra_priority = 200, + .cra_flags = CRYPTO_ALG_OPTIONAL_KEY, + .cra_blocksize = CHKSUM_BLOCK_SIZE, + .cra_ctxsize = sizeof(u32), + .cra_module = THIS_MODULE, + .cra_init = crc32_pclmul_cra_init, + } +}; + +static const struct x86_cpu_id crc32pclmul_cpu_id[] = { + X86_FEATURE_MATCH(X86_FEATURE_PCLMULQDQ), + {} +}; +MODULE_DEVICE_TABLE(x86cpu, crc32pclmul_cpu_id); + + +static int __init crc32_pclmul_mod_init(void) +{ + + if (!x86_match_cpu(crc32pclmul_cpu_id)) { + pr_info("PCLMULQDQ-NI instructions are not detected.\n"); + return -ENODEV; + } + return crypto_register_shash(&alg); +} + +static void __exit crc32_pclmul_mod_fini(void) +{ + crypto_unregister_shash(&alg); +} + +module_init(crc32_pclmul_mod_init); +module_exit(crc32_pclmul_mod_fini); + +MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>"); +MODULE_LICENSE("GPL"); + +MODULE_ALIAS_CRYPTO("crc32"); +MODULE_ALIAS_CRYPTO("crc32-pclmul"); diff --git a/arch/x86/crypto/crc32c-intel_glue.c b/arch/x86/crypto/crc32c-intel_glue.c new file mode 100644 index 000000000..5773e1161 --- /dev/null +++ b/arch/x86/crypto/crc32c-intel_glue.c @@ -0,0 +1,270 @@ +/* + * Using hardware provided CRC32 instruction to accelerate the CRC32 disposal. + * CRC32C polynomial:0x1EDC6F41(BE)/0x82F63B78(LE) + * CRC32 is a new instruction in Intel SSE4.2, the reference can be found at: + * http://www.intel.com/products/processor/manuals/ + * Intel(R) 64 and IA-32 Architectures Software Developer's Manual + * Volume 2A: Instruction Set Reference, A-M + * + * Copyright (C) 2008 Intel Corporation + * Authors: Austin Zhang <austin_zhang@linux.intel.com> + * Kent Liu <kent.liu@intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <crypto/internal/hash.h> + +#include <asm/cpufeatures.h> +#include <asm/cpu_device_id.h> +#include <asm/fpu/internal.h> + +#define CHKSUM_BLOCK_SIZE 1 +#define CHKSUM_DIGEST_SIZE 4 + +#define SCALE_F sizeof(unsigned long) + +#ifdef CONFIG_X86_64 +#define REX_PRE "0x48, " +#else +#define REX_PRE +#endif + +#ifdef CONFIG_X86_64 +/* + * use carryless multiply version of crc32c when buffer + * size is >= 512 to account + * for fpu state save/restore overhead. + */ +#define CRC32C_PCL_BREAKEVEN 512 + +asmlinkage unsigned int crc_pcl(const u8 *buffer, int len, + unsigned int crc_init); +#endif /* CONFIG_X86_64 */ + +static u32 crc32c_intel_le_hw_byte(u32 crc, unsigned char const *data, size_t length) +{ + while (length--) { + __asm__ __volatile__( + ".byte 0xf2, 0xf, 0x38, 0xf0, 0xf1" + :"=S"(crc) + :"0"(crc), "c"(*data) + ); + data++; + } + + return crc; +} + +static u32 __pure crc32c_intel_le_hw(u32 crc, unsigned char const *p, size_t len) +{ + unsigned int iquotient = len / SCALE_F; + unsigned int iremainder = len % SCALE_F; + unsigned long *ptmp = (unsigned long *)p; + + while (iquotient--) { + __asm__ __volatile__( + ".byte 0xf2, " REX_PRE "0xf, 0x38, 0xf1, 0xf1;" + :"=S"(crc) + :"0"(crc), "c"(*ptmp) + ); + ptmp++; + } + + if (iremainder) + crc = crc32c_intel_le_hw_byte(crc, (unsigned char *)ptmp, + iremainder); + + return crc; +} + +/* + * Setting the seed allows arbitrary accumulators and flexible XOR policy + * If your algorithm starts with ~0, then XOR with ~0 before you set + * the seed. + */ +static int crc32c_intel_setkey(struct crypto_shash *hash, const u8 *key, + unsigned int keylen) +{ + u32 *mctx = crypto_shash_ctx(hash); + + if (keylen != sizeof(u32)) { + crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + *mctx = le32_to_cpup((__le32 *)key); + return 0; +} + +static int crc32c_intel_init(struct shash_desc *desc) +{ + u32 *mctx = crypto_shash_ctx(desc->tfm); + u32 *crcp = shash_desc_ctx(desc); + + *crcp = *mctx; + + return 0; +} + +static int crc32c_intel_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + u32 *crcp = shash_desc_ctx(desc); + + *crcp = crc32c_intel_le_hw(*crcp, data, len); + return 0; +} + +static int __crc32c_intel_finup(u32 *crcp, const u8 *data, unsigned int len, + u8 *out) +{ + *(__le32 *)out = ~cpu_to_le32(crc32c_intel_le_hw(*crcp, data, len)); + return 0; +} + +static int crc32c_intel_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return __crc32c_intel_finup(shash_desc_ctx(desc), data, len, out); +} + +static int crc32c_intel_final(struct shash_desc *desc, u8 *out) +{ + u32 *crcp = shash_desc_ctx(desc); + + *(__le32 *)out = ~cpu_to_le32p(crcp); + return 0; +} + +static int crc32c_intel_digest(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return __crc32c_intel_finup(crypto_shash_ctx(desc->tfm), data, len, + out); +} + +static int crc32c_intel_cra_init(struct crypto_tfm *tfm) +{ + u32 *key = crypto_tfm_ctx(tfm); + + *key = ~0; + + return 0; +} + +#ifdef CONFIG_X86_64 +static int crc32c_pcl_intel_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + u32 *crcp = shash_desc_ctx(desc); + + /* + * use faster PCL version if datasize is large enough to + * overcome kernel fpu state save/restore overhead + */ + if (len >= CRC32C_PCL_BREAKEVEN && irq_fpu_usable()) { + kernel_fpu_begin(); + *crcp = crc_pcl(data, len, *crcp); + kernel_fpu_end(); + } else + *crcp = crc32c_intel_le_hw(*crcp, data, len); + return 0; +} + +static int __crc32c_pcl_intel_finup(u32 *crcp, const u8 *data, unsigned int len, + u8 *out) +{ + if (len >= CRC32C_PCL_BREAKEVEN && irq_fpu_usable()) { + kernel_fpu_begin(); + *(__le32 *)out = ~cpu_to_le32(crc_pcl(data, len, *crcp)); + kernel_fpu_end(); + } else + *(__le32 *)out = + ~cpu_to_le32(crc32c_intel_le_hw(*crcp, data, len)); + return 0; +} + +static int crc32c_pcl_intel_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return __crc32c_pcl_intel_finup(shash_desc_ctx(desc), data, len, out); +} + +static int crc32c_pcl_intel_digest(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return __crc32c_pcl_intel_finup(crypto_shash_ctx(desc->tfm), data, len, + out); +} +#endif /* CONFIG_X86_64 */ + +static struct shash_alg alg = { + .setkey = crc32c_intel_setkey, + .init = crc32c_intel_init, + .update = crc32c_intel_update, + .final = crc32c_intel_final, + .finup = crc32c_intel_finup, + .digest = crc32c_intel_digest, + .descsize = sizeof(u32), + .digestsize = CHKSUM_DIGEST_SIZE, + .base = { + .cra_name = "crc32c", + .cra_driver_name = "crc32c-intel", + .cra_priority = 200, + .cra_flags = CRYPTO_ALG_OPTIONAL_KEY, + .cra_blocksize = CHKSUM_BLOCK_SIZE, + .cra_ctxsize = sizeof(u32), + .cra_module = THIS_MODULE, + .cra_init = crc32c_intel_cra_init, + } +}; + +static const struct x86_cpu_id crc32c_cpu_id[] = { + X86_FEATURE_MATCH(X86_FEATURE_XMM4_2), + {} +}; +MODULE_DEVICE_TABLE(x86cpu, crc32c_cpu_id); + +static int __init crc32c_intel_mod_init(void) +{ + if (!x86_match_cpu(crc32c_cpu_id)) + return -ENODEV; +#ifdef CONFIG_X86_64 + if (boot_cpu_has(X86_FEATURE_PCLMULQDQ)) { + alg.update = crc32c_pcl_intel_update; + alg.finup = crc32c_pcl_intel_finup; + alg.digest = crc32c_pcl_intel_digest; + } +#endif + return crypto_register_shash(&alg); +} + +static void __exit crc32c_intel_mod_fini(void) +{ + crypto_unregister_shash(&alg); +} + +module_init(crc32c_intel_mod_init); +module_exit(crc32c_intel_mod_fini); + +MODULE_AUTHOR("Austin Zhang <austin.zhang@intel.com>, Kent Liu <kent.liu@intel.com>"); +MODULE_DESCRIPTION("CRC32c (Castagnoli) optimization using Intel Hardware."); +MODULE_LICENSE("GPL"); + +MODULE_ALIAS_CRYPTO("crc32c"); +MODULE_ALIAS_CRYPTO("crc32c-intel"); diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S new file mode 100644 index 000000000..3c6e01520 --- /dev/null +++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S @@ -0,0 +1,464 @@ +/* + * Implement fast CRC32C with PCLMULQDQ instructions. (x86_64) + * + * The white papers on CRC32C calculations with PCLMULQDQ instruction can be + * downloaded from: + * http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/crc-iscsi-polynomial-crc32-instruction-paper.pdf + * http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/fast-crc-computation-paper.pdf + * + * Copyright (C) 2012 Intel Corporation. + * + * Authors: + * Wajdi Feghali <wajdi.k.feghali@intel.com> + * James Guilford <james.guilford@intel.com> + * David Cote <david.m.cote@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <asm/inst.h> +#include <linux/linkage.h> +#include <asm/nospec-branch.h> + +## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction + +.macro LABEL prefix n +\prefix\n\(): +.endm + +.macro JMPTBL_ENTRY i +.word crc_\i - crc_array +.endm + +.macro JNC_LESS_THAN j + jnc less_than_\j +.endm + +# Define threshold where buffers are considered "small" and routed to more +# efficient "by-1" code. This "by-1" code only handles up to 255 bytes, so +# SMALL_SIZE can be no larger than 255. + +#define SMALL_SIZE 200 + +.if (SMALL_SIZE > 255) +.error "SMALL_ SIZE must be < 256" +.endif + +# unsigned int crc_pcl(u8 *buffer, int len, unsigned int crc_init); + +.text +ENTRY(crc_pcl) +#define bufp %rdi +#define bufp_dw %edi +#define bufp_w %di +#define bufp_b %dil +#define bufptmp %rcx +#define block_0 %rcx +#define block_1 %rdx +#define block_2 %r11 +#define len %rsi +#define len_dw %esi +#define len_w %si +#define len_b %sil +#define crc_init_arg %rdx +#define tmp %rbx +#define crc_init %r8 +#define crc_init_dw %r8d +#define crc1 %r9 +#define crc2 %r10 + + pushq %rbx + pushq %rdi + pushq %rsi + + ## Move crc_init for Linux to a different + mov crc_init_arg, crc_init + + ################################################################ + ## 1) ALIGN: + ################################################################ + + mov bufp, bufptmp # rdi = *buf + neg bufp + and $7, bufp # calculate the unalignment amount of + # the address + je proc_block # Skip if aligned + + ## If len is less than 8 and we're unaligned, we need to jump + ## to special code to avoid reading beyond the end of the buffer + cmp $8, len + jae do_align + # less_than_8 expects length in upper 3 bits of len_dw + # less_than_8_post_shl1 expects length = carryflag * 8 + len_dw[31:30] + shl $32-3+1, len_dw + jmp less_than_8_post_shl1 + +do_align: + #### Calculate CRC of unaligned bytes of the buffer (if any) + movq (bufptmp), tmp # load a quadward from the buffer + add bufp, bufptmp # align buffer pointer for quadword + # processing + sub bufp, len # update buffer length +align_loop: + crc32b %bl, crc_init_dw # compute crc32 of 1-byte + shr $8, tmp # get next byte + dec bufp + jne align_loop + +proc_block: + + ################################################################ + ## 2) PROCESS BLOCKS: + ################################################################ + + ## compute num of bytes to be processed + movq len, tmp # save num bytes in tmp + + cmpq $128*24, len + jae full_block + +continue_block: + cmpq $SMALL_SIZE, len + jb small + + ## len < 128*24 + movq $2731, %rax # 2731 = ceil(2^16 / 24) + mul len_dw + shrq $16, %rax + + ## eax contains floor(bytes / 24) = num 24-byte chunks to do + + ## process rax 24-byte chunks (128 >= rax >= 0) + + ## compute end address of each block + ## block 0 (base addr + RAX * 8) + ## block 1 (base addr + RAX * 16) + ## block 2 (base addr + RAX * 24) + lea (bufptmp, %rax, 8), block_0 + lea (block_0, %rax, 8), block_1 + lea (block_1, %rax, 8), block_2 + + xor crc1, crc1 + xor crc2, crc2 + + ## branch into array + lea jump_table(%rip), bufp + movzwq (bufp, %rax, 2), len + lea crc_array(%rip), bufp + lea (bufp, len, 1), bufp + JMP_NOSPEC bufp + + ################################################################ + ## 2a) PROCESS FULL BLOCKS: + ################################################################ +full_block: + movl $128,%eax + lea 128*8*2(block_0), block_1 + lea 128*8*3(block_0), block_2 + add $128*8*1, block_0 + + xor crc1,crc1 + xor crc2,crc2 + + # Fall thruogh into top of crc array (crc_128) + + ################################################################ + ## 3) CRC Array: + ################################################################ + +crc_array: + i=128 +.rept 128-1 +.altmacro +LABEL crc_ %i +.noaltmacro + crc32q -i*8(block_0), crc_init + crc32q -i*8(block_1), crc1 + crc32q -i*8(block_2), crc2 + i=(i-1) +.endr + +.altmacro +LABEL crc_ %i +.noaltmacro + crc32q -i*8(block_0), crc_init + crc32q -i*8(block_1), crc1 +# SKIP crc32 -i*8(block_2), crc2 ; Don't do this one yet + + mov block_2, block_0 + + ################################################################ + ## 4) Combine three results: + ################################################################ + + lea (K_table-8)(%rip), bufp # first entry is for idx 1 + shlq $3, %rax # rax *= 8 + pmovzxdq (bufp,%rax), %xmm0 # 2 consts: K1:K2 + leal (%eax,%eax,2), %eax # rax *= 3 (total *24) + subq %rax, tmp # tmp -= rax*24 + + movq crc_init, %xmm1 # CRC for block 1 + PCLMULQDQ 0x00,%xmm0,%xmm1 # Multiply by K2 + + movq crc1, %xmm2 # CRC for block 2 + PCLMULQDQ 0x10, %xmm0, %xmm2 # Multiply by K1 + + pxor %xmm2,%xmm1 + movq %xmm1, %rax + xor -i*8(block_2), %rax + mov crc2, crc_init + crc32 %rax, crc_init + + ################################################################ + ## 5) Check for end: + ################################################################ + +LABEL crc_ 0 + mov tmp, len + cmp $128*24, tmp + jae full_block + cmp $24, tmp + jae continue_block + +less_than_24: + shl $32-4, len_dw # less_than_16 expects length + # in upper 4 bits of len_dw + jnc less_than_16 + crc32q (bufptmp), crc_init + crc32q 8(bufptmp), crc_init + jz do_return + add $16, bufptmp + # len is less than 8 if we got here + # less_than_8 expects length in upper 3 bits of len_dw + # less_than_8_post_shl1 expects length = carryflag * 8 + len_dw[31:30] + shl $2, len_dw + jmp less_than_8_post_shl1 + + ####################################################################### + ## 6) LESS THAN 256-bytes REMAIN AT THIS POINT (8-bits of len are full) + ####################################################################### +small: + shl $32-8, len_dw # Prepare len_dw for less_than_256 + j=256 +.rept 5 # j = {256, 128, 64, 32, 16} +.altmacro +LABEL less_than_ %j # less_than_j: Length should be in + # upper lg(j) bits of len_dw + j=(j/2) + shl $1, len_dw # Get next MSB + JNC_LESS_THAN %j +.noaltmacro + i=0 +.rept (j/8) + crc32q i(bufptmp), crc_init # Compute crc32 of 8-byte data + i=i+8 +.endr + jz do_return # Return if remaining length is zero + add $j, bufptmp # Advance buf +.endr + +less_than_8: # Length should be stored in + # upper 3 bits of len_dw + shl $1, len_dw +less_than_8_post_shl1: + jnc less_than_4 + crc32l (bufptmp), crc_init_dw # CRC of 4 bytes + jz do_return # return if remaining data is zero + add $4, bufptmp +less_than_4: # Length should be stored in + # upper 2 bits of len_dw + shl $1, len_dw + jnc less_than_2 + crc32w (bufptmp), crc_init_dw # CRC of 2 bytes + jz do_return # return if remaining data is zero + add $2, bufptmp +less_than_2: # Length should be stored in the MSB + # of len_dw + shl $1, len_dw + jnc less_than_1 + crc32b (bufptmp), crc_init_dw # CRC of 1 byte +less_than_1: # Length should be zero +do_return: + movq crc_init, %rax + popq %rsi + popq %rdi + popq %rbx + ret +ENDPROC(crc_pcl) + +.section .rodata, "a", @progbits + ################################################################ + ## jump table Table is 129 entries x 2 bytes each + ################################################################ +.align 4 +jump_table: + i=0 +.rept 129 +.altmacro +JMPTBL_ENTRY %i +.noaltmacro + i=i+1 +.endr + + + ################################################################ + ## PCLMULQDQ tables + ## Table is 128 entries x 2 words (8 bytes) each + ################################################################ +.align 8 +K_table: + .long 0x493c7d27, 0x00000001 + .long 0xba4fc28e, 0x493c7d27 + .long 0xddc0152b, 0xf20c0dfe + .long 0x9e4addf8, 0xba4fc28e + .long 0x39d3b296, 0x3da6d0cb + .long 0x0715ce53, 0xddc0152b + .long 0x47db8317, 0x1c291d04 + .long 0x0d3b6092, 0x9e4addf8 + .long 0xc96cfdc0, 0x740eef02 + .long 0x878a92a7, 0x39d3b296 + .long 0xdaece73e, 0x083a6eec + .long 0xab7aff2a, 0x0715ce53 + .long 0x2162d385, 0xc49f4f67 + .long 0x83348832, 0x47db8317 + .long 0x299847d5, 0x2ad91c30 + .long 0xb9e02b86, 0x0d3b6092 + .long 0x18b33a4e, 0x6992cea2 + .long 0xb6dd949b, 0xc96cfdc0 + .long 0x78d9ccb7, 0x7e908048 + .long 0xbac2fd7b, 0x878a92a7 + .long 0xa60ce07b, 0x1b3d8f29 + .long 0xce7f39f4, 0xdaece73e + .long 0x61d82e56, 0xf1d0f55e + .long 0xd270f1a2, 0xab7aff2a + .long 0xc619809d, 0xa87ab8a8 + .long 0x2b3cac5d, 0x2162d385 + .long 0x65863b64, 0x8462d800 + .long 0x1b03397f, 0x83348832 + .long 0xebb883bd, 0x71d111a8 + .long 0xb3e32c28, 0x299847d5 + .long 0x064f7f26, 0xffd852c6 + .long 0xdd7e3b0c, 0xb9e02b86 + .long 0xf285651c, 0xdcb17aa4 + .long 0x10746f3c, 0x18b33a4e + .long 0xc7a68855, 0xf37c5aee + .long 0x271d9844, 0xb6dd949b + .long 0x8e766a0c, 0x6051d5a2 + .long 0x93a5f730, 0x78d9ccb7 + .long 0x6cb08e5c, 0x18b0d4ff + .long 0x6b749fb2, 0xbac2fd7b + .long 0x1393e203, 0x21f3d99c + .long 0xcec3662e, 0xa60ce07b + .long 0x96c515bb, 0x8f158014 + .long 0xe6fc4e6a, 0xce7f39f4 + .long 0x8227bb8a, 0xa00457f7 + .long 0xb0cd4768, 0x61d82e56 + .long 0x39c7ff35, 0x8d6d2c43 + .long 0xd7a4825c, 0xd270f1a2 + .long 0x0ab3844b, 0x00ac29cf + .long 0x0167d312, 0xc619809d + .long 0xf6076544, 0xe9adf796 + .long 0x26f6a60a, 0x2b3cac5d + .long 0xa741c1bf, 0x96638b34 + .long 0x98d8d9cb, 0x65863b64 + .long 0x49c3cc9c, 0xe0e9f351 + .long 0x68bce87a, 0x1b03397f + .long 0x57a3d037, 0x9af01f2d + .long 0x6956fc3b, 0xebb883bd + .long 0x42d98888, 0x2cff42cf + .long 0x3771e98f, 0xb3e32c28 + .long 0xb42ae3d9, 0x88f25a3a + .long 0x2178513a, 0x064f7f26 + .long 0xe0ac139e, 0x4e36f0b0 + .long 0x170076fa, 0xdd7e3b0c + .long 0x444dd413, 0xbd6f81f8 + .long 0x6f345e45, 0xf285651c + .long 0x41d17b64, 0x91c9bd4b + .long 0xff0dba97, 0x10746f3c + .long 0xa2b73df1, 0x885f087b + .long 0xf872e54c, 0xc7a68855 + .long 0x1e41e9fc, 0x4c144932 + .long 0x86d8e4d2, 0x271d9844 + .long 0x651bd98b, 0x52148f02 + .long 0x5bb8f1bc, 0x8e766a0c + .long 0xa90fd27a, 0xa3c6f37a + .long 0xb3af077a, 0x93a5f730 + .long 0x4984d782, 0xd7c0557f + .long 0xca6ef3ac, 0x6cb08e5c + .long 0x234e0b26, 0x63ded06a + .long 0xdd66cbbb, 0x6b749fb2 + .long 0x4597456a, 0x4d56973c + .long 0xe9e28eb4, 0x1393e203 + .long 0x7b3ff57a, 0x9669c9df + .long 0xc9c8b782, 0xcec3662e + .long 0x3f70cc6f, 0xe417f38a + .long 0x93e106a4, 0x96c515bb + .long 0x62ec6c6d, 0x4b9e0f71 + .long 0xd813b325, 0xe6fc4e6a + .long 0x0df04680, 0xd104b8fc + .long 0x2342001e, 0x8227bb8a + .long 0x0a2a8d7e, 0x5b397730 + .long 0x6d9a4957, 0xb0cd4768 + .long 0xe8b6368b, 0xe78eb416 + .long 0xd2c3ed1a, 0x39c7ff35 + .long 0x995a5724, 0x61ff0e01 + .long 0x9ef68d35, 0xd7a4825c + .long 0x0c139b31, 0x8d96551c + .long 0xf2271e60, 0x0ab3844b + .long 0x0b0bf8ca, 0x0bf80dd2 + .long 0x2664fd8b, 0x0167d312 + .long 0xed64812d, 0x8821abed + .long 0x02ee03b2, 0xf6076544 + .long 0x8604ae0f, 0x6a45d2b2 + .long 0x363bd6b3, 0x26f6a60a + .long 0x135c83fd, 0xd8d26619 + .long 0x5fabe670, 0xa741c1bf + .long 0x35ec3279, 0xde87806c + .long 0x00bcf5f6, 0x98d8d9cb + .long 0x8ae00689, 0x14338754 + .long 0x17f27698, 0x49c3cc9c + .long 0x58ca5f00, 0x5bd2011f + .long 0xaa7c7ad5, 0x68bce87a + .long 0xb5cfca28, 0xdd07448e + .long 0xded288f8, 0x57a3d037 + .long 0x59f229bc, 0xdde8f5b9 + .long 0x6d390dec, 0x6956fc3b + .long 0x37170390, 0xa3e3e02c + .long 0x6353c1cc, 0x42d98888 + .long 0xc4584f5c, 0xd73c7bea + .long 0xf48642e9, 0x3771e98f + .long 0x531377e2, 0x80ff0093 + .long 0xdd35bc8d, 0xb42ae3d9 + .long 0xb25b29f2, 0x8fe4c34d + .long 0x9a5ede41, 0x2178513a + .long 0xa563905d, 0xdf99fc11 + .long 0x45cddf4e, 0xe0ac139e + .long 0xacfa3103, 0x6c23e841 + .long 0xa51b6135, 0x170076fa diff --git a/arch/x86/crypto/crct10dif-pcl-asm_64.S b/arch/x86/crypto/crct10dif-pcl-asm_64.S new file mode 100644 index 000000000..de04d3e98 --- /dev/null +++ b/arch/x86/crypto/crct10dif-pcl-asm_64.S @@ -0,0 +1,651 @@ +######################################################################## +# Implement fast CRC-T10DIF computation with SSE and PCLMULQDQ instructions +# +# Copyright (c) 2013, Intel Corporation +# +# Authors: +# Erdinc Ozturk <erdinc.ozturk@intel.com> +# Vinodh Gopal <vinodh.gopal@intel.com> +# James Guilford <james.guilford@intel.com> +# Tim Chen <tim.c.chen@linux.intel.com> +# +# This software is available to you under a choice of one of two +# licenses. You may choose to be licensed under the terms of the GNU +# General Public License (GPL) Version 2, available from the file +# COPYING in the main directory of this source tree, or the +# OpenIB.org BSD license below: +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the +# distribution. +# +# * Neither the name of the Intel Corporation nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# +# THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY +# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +######################################################################## +# Function API: +# UINT16 crc_t10dif_pcl( +# UINT16 init_crc, //initial CRC value, 16 bits +# const unsigned char *buf, //buffer pointer to calculate CRC on +# UINT64 len //buffer length in bytes (64-bit data) +# ); +# +# Reference paper titled "Fast CRC Computation for Generic +# Polynomials Using PCLMULQDQ Instruction" +# URL: http://www.intel.com/content/dam/www/public/us/en/documents +# /white-papers/fast-crc-computation-generic-polynomials-pclmulqdq-paper.pdf +# +# + +#include <linux/linkage.h> + +.text + +#define arg1 %rdi +#define arg2 %rsi +#define arg3 %rdx + +#define arg1_low32 %edi + +ENTRY(crc_t10dif_pcl) +.align 16 + + # adjust the 16-bit initial_crc value, scale it to 32 bits + shl $16, arg1_low32 + + # Allocate Stack Space + mov %rsp, %rcx + sub $16*2, %rsp + # align stack to 16 byte boundary + and $~(0x10 - 1), %rsp + + # check if smaller than 256 + cmp $256, arg3 + + # for sizes less than 128, we can't fold 64B at a time... + jl _less_than_128 + + + # load the initial crc value + movd arg1_low32, %xmm10 # initial crc + + # crc value does not need to be byte-reflected, but it needs + # to be moved to the high part of the register. + # because data will be byte-reflected and will align with + # initial crc at correct place. + pslldq $12, %xmm10 + + movdqa SHUF_MASK(%rip), %xmm11 + # receive the initial 64B data, xor the initial crc value + movdqu 16*0(arg2), %xmm0 + movdqu 16*1(arg2), %xmm1 + movdqu 16*2(arg2), %xmm2 + movdqu 16*3(arg2), %xmm3 + movdqu 16*4(arg2), %xmm4 + movdqu 16*5(arg2), %xmm5 + movdqu 16*6(arg2), %xmm6 + movdqu 16*7(arg2), %xmm7 + + pshufb %xmm11, %xmm0 + # XOR the initial_crc value + pxor %xmm10, %xmm0 + pshufb %xmm11, %xmm1 + pshufb %xmm11, %xmm2 + pshufb %xmm11, %xmm3 + pshufb %xmm11, %xmm4 + pshufb %xmm11, %xmm5 + pshufb %xmm11, %xmm6 + pshufb %xmm11, %xmm7 + + movdqa rk3(%rip), %xmm10 #xmm10 has rk3 and rk4 + #imm value of pclmulqdq instruction + #will determine which constant to use + + ################################################################# + # we subtract 256 instead of 128 to save one instruction from the loop + sub $256, arg3 + + # at this section of the code, there is 64*x+y (0<=y<64) bytes of + # buffer. The _fold_64_B_loop will fold 64B at a time + # until we have 64+y Bytes of buffer + + + # fold 64B at a time. This section of the code folds 4 xmm + # registers in parallel +_fold_64_B_loop: + + # update the buffer pointer + add $128, arg2 # buf += 64# + + movdqu 16*0(arg2), %xmm9 + movdqu 16*1(arg2), %xmm12 + pshufb %xmm11, %xmm9 + pshufb %xmm11, %xmm12 + movdqa %xmm0, %xmm8 + movdqa %xmm1, %xmm13 + pclmulqdq $0x0 , %xmm10, %xmm0 + pclmulqdq $0x11, %xmm10, %xmm8 + pclmulqdq $0x0 , %xmm10, %xmm1 + pclmulqdq $0x11, %xmm10, %xmm13 + pxor %xmm9 , %xmm0 + xorps %xmm8 , %xmm0 + pxor %xmm12, %xmm1 + xorps %xmm13, %xmm1 + + movdqu 16*2(arg2), %xmm9 + movdqu 16*3(arg2), %xmm12 + pshufb %xmm11, %xmm9 + pshufb %xmm11, %xmm12 + movdqa %xmm2, %xmm8 + movdqa %xmm3, %xmm13 + pclmulqdq $0x0, %xmm10, %xmm2 + pclmulqdq $0x11, %xmm10, %xmm8 + pclmulqdq $0x0, %xmm10, %xmm3 + pclmulqdq $0x11, %xmm10, %xmm13 + pxor %xmm9 , %xmm2 + xorps %xmm8 , %xmm2 + pxor %xmm12, %xmm3 + xorps %xmm13, %xmm3 + + movdqu 16*4(arg2), %xmm9 + movdqu 16*5(arg2), %xmm12 + pshufb %xmm11, %xmm9 + pshufb %xmm11, %xmm12 + movdqa %xmm4, %xmm8 + movdqa %xmm5, %xmm13 + pclmulqdq $0x0, %xmm10, %xmm4 + pclmulqdq $0x11, %xmm10, %xmm8 + pclmulqdq $0x0, %xmm10, %xmm5 + pclmulqdq $0x11, %xmm10, %xmm13 + pxor %xmm9 , %xmm4 + xorps %xmm8 , %xmm4 + pxor %xmm12, %xmm5 + xorps %xmm13, %xmm5 + + movdqu 16*6(arg2), %xmm9 + movdqu 16*7(arg2), %xmm12 + pshufb %xmm11, %xmm9 + pshufb %xmm11, %xmm12 + movdqa %xmm6 , %xmm8 + movdqa %xmm7 , %xmm13 + pclmulqdq $0x0 , %xmm10, %xmm6 + pclmulqdq $0x11, %xmm10, %xmm8 + pclmulqdq $0x0 , %xmm10, %xmm7 + pclmulqdq $0x11, %xmm10, %xmm13 + pxor %xmm9 , %xmm6 + xorps %xmm8 , %xmm6 + pxor %xmm12, %xmm7 + xorps %xmm13, %xmm7 + + sub $128, arg3 + + # check if there is another 64B in the buffer to be able to fold + jge _fold_64_B_loop + ################################################################## + + + add $128, arg2 + # at this point, the buffer pointer is pointing at the last y Bytes + # of the buffer the 64B of folded data is in 4 of the xmm + # registers: xmm0, xmm1, xmm2, xmm3 + + + # fold the 8 xmm registers to 1 xmm register with different constants + + movdqa rk9(%rip), %xmm10 + movdqa %xmm0, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm0 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + xorps %xmm0, %xmm7 + + movdqa rk11(%rip), %xmm10 + movdqa %xmm1, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm1 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + xorps %xmm1, %xmm7 + + movdqa rk13(%rip), %xmm10 + movdqa %xmm2, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm2 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + pxor %xmm2, %xmm7 + + movdqa rk15(%rip), %xmm10 + movdqa %xmm3, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm3 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + xorps %xmm3, %xmm7 + + movdqa rk17(%rip), %xmm10 + movdqa %xmm4, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm4 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + pxor %xmm4, %xmm7 + + movdqa rk19(%rip), %xmm10 + movdqa %xmm5, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm5 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + xorps %xmm5, %xmm7 + + movdqa rk1(%rip), %xmm10 #xmm10 has rk1 and rk2 + #imm value of pclmulqdq instruction + #will determine which constant to use + movdqa %xmm6, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm6 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + pxor %xmm6, %xmm7 + + + # instead of 64, we add 48 to the loop counter to save 1 instruction + # from the loop instead of a cmp instruction, we use the negative + # flag with the jl instruction + add $128-16, arg3 + jl _final_reduction_for_128 + + # now we have 16+y bytes left to reduce. 16 Bytes is in register xmm7 + # and the rest is in memory. We can fold 16 bytes at a time if y>=16 + # continue folding 16B at a time + +_16B_reduction_loop: + movdqa %xmm7, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm7 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + movdqu (arg2), %xmm0 + pshufb %xmm11, %xmm0 + pxor %xmm0 , %xmm7 + add $16, arg2 + sub $16, arg3 + # instead of a cmp instruction, we utilize the flags with the + # jge instruction equivalent of: cmp arg3, 16-16 + # check if there is any more 16B in the buffer to be able to fold + jge _16B_reduction_loop + + #now we have 16+z bytes left to reduce, where 0<= z < 16. + #first, we reduce the data in the xmm7 register + + +_final_reduction_for_128: + # check if any more data to fold. If not, compute the CRC of + # the final 128 bits + add $16, arg3 + je _128_done + + # here we are getting data that is less than 16 bytes. + # since we know that there was data before the pointer, we can + # offset the input pointer before the actual point, to receive + # exactly 16 bytes. after that the registers need to be adjusted. +_get_last_two_xmms: + movdqa %xmm7, %xmm2 + + movdqu -16(arg2, arg3), %xmm1 + pshufb %xmm11, %xmm1 + + # get rid of the extra data that was loaded before + # load the shift constant + lea pshufb_shf_table+16(%rip), %rax + sub arg3, %rax + movdqu (%rax), %xmm0 + + # shift xmm2 to the left by arg3 bytes + pshufb %xmm0, %xmm2 + + # shift xmm7 to the right by 16-arg3 bytes + pxor mask1(%rip), %xmm0 + pshufb %xmm0, %xmm7 + pblendvb %xmm2, %xmm1 #xmm0 is implicit + + # fold 16 Bytes + movdqa %xmm1, %xmm2 + movdqa %xmm7, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm7 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + pxor %xmm2, %xmm7 + +_128_done: + # compute crc of a 128-bit value + movdqa rk5(%rip), %xmm10 # rk5 and rk6 in xmm10 + movdqa %xmm7, %xmm0 + + #64b fold + pclmulqdq $0x1, %xmm10, %xmm7 + pslldq $8 , %xmm0 + pxor %xmm0, %xmm7 + + #32b fold + movdqa %xmm7, %xmm0 + + pand mask2(%rip), %xmm0 + + psrldq $12, %xmm7 + pclmulqdq $0x10, %xmm10, %xmm7 + pxor %xmm0, %xmm7 + + #barrett reduction +_barrett: + movdqa rk7(%rip), %xmm10 # rk7 and rk8 in xmm10 + movdqa %xmm7, %xmm0 + pclmulqdq $0x01, %xmm10, %xmm7 + pslldq $4, %xmm7 + pclmulqdq $0x11, %xmm10, %xmm7 + + pslldq $4, %xmm7 + pxor %xmm0, %xmm7 + pextrd $1, %xmm7, %eax + +_cleanup: + # scale the result back to 16 bits + shr $16, %eax + mov %rcx, %rsp + ret + +######################################################################## + +.align 16 +_less_than_128: + + # check if there is enough buffer to be able to fold 16B at a time + cmp $32, arg3 + jl _less_than_32 + movdqa SHUF_MASK(%rip), %xmm11 + + # now if there is, load the constants + movdqa rk1(%rip), %xmm10 # rk1 and rk2 in xmm10 + + movd arg1_low32, %xmm0 # get the initial crc value + pslldq $12, %xmm0 # align it to its correct place + movdqu (arg2), %xmm7 # load the plaintext + pshufb %xmm11, %xmm7 # byte-reflect the plaintext + pxor %xmm0, %xmm7 + + + # update the buffer pointer + add $16, arg2 + + # update the counter. subtract 32 instead of 16 to save one + # instruction from the loop + sub $32, arg3 + + jmp _16B_reduction_loop + + +.align 16 +_less_than_32: + # mov initial crc to the return value. this is necessary for + # zero-length buffers. + mov arg1_low32, %eax + test arg3, arg3 + je _cleanup + + movdqa SHUF_MASK(%rip), %xmm11 + + movd arg1_low32, %xmm0 # get the initial crc value + pslldq $12, %xmm0 # align it to its correct place + + cmp $16, arg3 + je _exact_16_left + jl _less_than_16_left + + movdqu (arg2), %xmm7 # load the plaintext + pshufb %xmm11, %xmm7 # byte-reflect the plaintext + pxor %xmm0 , %xmm7 # xor the initial crc value + add $16, arg2 + sub $16, arg3 + movdqa rk1(%rip), %xmm10 # rk1 and rk2 in xmm10 + jmp _get_last_two_xmms + + +.align 16 +_less_than_16_left: + # use stack space to load data less than 16 bytes, zero-out + # the 16B in memory first. + + pxor %xmm1, %xmm1 + mov %rsp, %r11 + movdqa %xmm1, (%r11) + + cmp $4, arg3 + jl _only_less_than_4 + + # backup the counter value + mov arg3, %r9 + cmp $8, arg3 + jl _less_than_8_left + + # load 8 Bytes + mov (arg2), %rax + mov %rax, (%r11) + add $8, %r11 + sub $8, arg3 + add $8, arg2 +_less_than_8_left: + + cmp $4, arg3 + jl _less_than_4_left + + # load 4 Bytes + mov (arg2), %eax + mov %eax, (%r11) + add $4, %r11 + sub $4, arg3 + add $4, arg2 +_less_than_4_left: + + cmp $2, arg3 + jl _less_than_2_left + + # load 2 Bytes + mov (arg2), %ax + mov %ax, (%r11) + add $2, %r11 + sub $2, arg3 + add $2, arg2 +_less_than_2_left: + cmp $1, arg3 + jl _zero_left + + # load 1 Byte + mov (arg2), %al + mov %al, (%r11) +_zero_left: + movdqa (%rsp), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + # shl r9, 4 + lea pshufb_shf_table+16(%rip), %rax + sub %r9, %rax + movdqu (%rax), %xmm0 + pxor mask1(%rip), %xmm0 + + pshufb %xmm0, %xmm7 + jmp _128_done + +.align 16 +_exact_16_left: + movdqu (arg2), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + jmp _128_done + +_only_less_than_4: + cmp $3, arg3 + jl _only_less_than_3 + + # load 3 Bytes + mov (arg2), %al + mov %al, (%r11) + + mov 1(arg2), %al + mov %al, 1(%r11) + + mov 2(arg2), %al + mov %al, 2(%r11) + + movdqa (%rsp), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + psrldq $5, %xmm7 + + jmp _barrett +_only_less_than_3: + cmp $2, arg3 + jl _only_less_than_2 + + # load 2 Bytes + mov (arg2), %al + mov %al, (%r11) + + mov 1(arg2), %al + mov %al, 1(%r11) + + movdqa (%rsp), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + psrldq $6, %xmm7 + + jmp _barrett +_only_less_than_2: + + # load 1 Byte + mov (arg2), %al + mov %al, (%r11) + + movdqa (%rsp), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + psrldq $7, %xmm7 + + jmp _barrett + +ENDPROC(crc_t10dif_pcl) + +.section .rodata, "a", @progbits +.align 16 +# precomputed constants +# these constants are precomputed from the poly: +# 0x8bb70000 (0x8bb7 scaled to 32 bits) +# Q = 0x18BB70000 +# rk1 = 2^(32*3) mod Q << 32 +# rk2 = 2^(32*5) mod Q << 32 +# rk3 = 2^(32*15) mod Q << 32 +# rk4 = 2^(32*17) mod Q << 32 +# rk5 = 2^(32*3) mod Q << 32 +# rk6 = 2^(32*2) mod Q << 32 +# rk7 = floor(2^64/Q) +# rk8 = Q +rk1: +.quad 0x2d56000000000000 +rk2: +.quad 0x06df000000000000 +rk3: +.quad 0x9d9d000000000000 +rk4: +.quad 0x7cf5000000000000 +rk5: +.quad 0x2d56000000000000 +rk6: +.quad 0x1368000000000000 +rk7: +.quad 0x00000001f65a57f8 +rk8: +.quad 0x000000018bb70000 + +rk9: +.quad 0xceae000000000000 +rk10: +.quad 0xbfd6000000000000 +rk11: +.quad 0x1e16000000000000 +rk12: +.quad 0x713c000000000000 +rk13: +.quad 0xf7f9000000000000 +rk14: +.quad 0x80a6000000000000 +rk15: +.quad 0x044c000000000000 +rk16: +.quad 0xe658000000000000 +rk17: +.quad 0xad18000000000000 +rk18: +.quad 0xa497000000000000 +rk19: +.quad 0x6ee3000000000000 +rk20: +.quad 0xe7b5000000000000 + + + +.section .rodata.cst16.mask1, "aM", @progbits, 16 +.align 16 +mask1: +.octa 0x80808080808080808080808080808080 + +.section .rodata.cst16.mask2, "aM", @progbits, 16 +.align 16 +mask2: +.octa 0x00000000FFFFFFFFFFFFFFFFFFFFFFFF + +.section .rodata.cst16.SHUF_MASK, "aM", @progbits, 16 +.align 16 +SHUF_MASK: +.octa 0x000102030405060708090A0B0C0D0E0F + +.section .rodata.cst32.pshufb_shf_table, "aM", @progbits, 32 +.align 32 +pshufb_shf_table: +# use these values for shift constants for the pshufb instruction +# different alignments result in values as shown: +# DDQ 0x008f8e8d8c8b8a898887868584838281 # shl 15 (16-1) / shr1 +# DDQ 0x01008f8e8d8c8b8a8988878685848382 # shl 14 (16-3) / shr2 +# DDQ 0x0201008f8e8d8c8b8a89888786858483 # shl 13 (16-4) / shr3 +# DDQ 0x030201008f8e8d8c8b8a898887868584 # shl 12 (16-4) / shr4 +# DDQ 0x04030201008f8e8d8c8b8a8988878685 # shl 11 (16-5) / shr5 +# DDQ 0x0504030201008f8e8d8c8b8a89888786 # shl 10 (16-6) / shr6 +# DDQ 0x060504030201008f8e8d8c8b8a898887 # shl 9 (16-7) / shr7 +# DDQ 0x07060504030201008f8e8d8c8b8a8988 # shl 8 (16-8) / shr8 +# DDQ 0x0807060504030201008f8e8d8c8b8a89 # shl 7 (16-9) / shr9 +# DDQ 0x090807060504030201008f8e8d8c8b8a # shl 6 (16-10) / shr10 +# DDQ 0x0a090807060504030201008f8e8d8c8b # shl 5 (16-11) / shr11 +# DDQ 0x0b0a090807060504030201008f8e8d8c # shl 4 (16-12) / shr12 +# DDQ 0x0c0b0a090807060504030201008f8e8d # shl 3 (16-13) / shr13 +# DDQ 0x0d0c0b0a090807060504030201008f8e # shl 2 (16-14) / shr14 +# DDQ 0x0e0d0c0b0a090807060504030201008f # shl 1 (16-15) / shr15 +.octa 0x8f8e8d8c8b8a89888786858483828100 +.octa 0x000e0d0c0b0a09080706050403020100 diff --git a/arch/x86/crypto/crct10dif-pclmul_glue.c b/arch/x86/crypto/crct10dif-pclmul_glue.c new file mode 100644 index 000000000..7bbfe7d35 --- /dev/null +++ b/arch/x86/crypto/crct10dif-pclmul_glue.c @@ -0,0 +1,148 @@ +/* + * Cryptographic API. + * + * T10 Data Integrity Field CRC16 Crypto Transform using PCLMULQDQ Instructions + * + * Copyright (C) 2013 Intel Corporation + * Author: Tim Chen <tim.c.chen@linux.intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/crc-t10dif.h> +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <asm/fpu/api.h> +#include <asm/cpufeatures.h> +#include <asm/cpu_device_id.h> + +asmlinkage __u16 crc_t10dif_pcl(__u16 crc, const unsigned char *buf, + size_t len); + +struct chksum_desc_ctx { + __u16 crc; +}; + +/* + * Steps through buffer one byte at at time, calculates reflected + * crc using table. + */ + +static int chksum_init(struct shash_desc *desc) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + ctx->crc = 0; + + return 0; +} + +static int chksum_update(struct shash_desc *desc, const u8 *data, + unsigned int length) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + if (irq_fpu_usable()) { + kernel_fpu_begin(); + ctx->crc = crc_t10dif_pcl(ctx->crc, data, length); + kernel_fpu_end(); + } else + ctx->crc = crc_t10dif_generic(ctx->crc, data, length); + return 0; +} + +static int chksum_final(struct shash_desc *desc, u8 *out) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + *(__u16 *)out = ctx->crc; + return 0; +} + +static int __chksum_finup(__u16 crc, const u8 *data, unsigned int len, u8 *out) +{ + if (irq_fpu_usable()) { + kernel_fpu_begin(); + *(__u16 *)out = crc_t10dif_pcl(crc, data, len); + kernel_fpu_end(); + } else + *(__u16 *)out = crc_t10dif_generic(crc, data, len); + return 0; +} + +static int chksum_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + return __chksum_finup(ctx->crc, data, len, out); +} + +static int chksum_digest(struct shash_desc *desc, const u8 *data, + unsigned int length, u8 *out) +{ + return __chksum_finup(0, data, length, out); +} + +static struct shash_alg alg = { + .digestsize = CRC_T10DIF_DIGEST_SIZE, + .init = chksum_init, + .update = chksum_update, + .final = chksum_final, + .finup = chksum_finup, + .digest = chksum_digest, + .descsize = sizeof(struct chksum_desc_ctx), + .base = { + .cra_name = "crct10dif", + .cra_driver_name = "crct10dif-pclmul", + .cra_priority = 200, + .cra_blocksize = CRC_T10DIF_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static const struct x86_cpu_id crct10dif_cpu_id[] = { + X86_FEATURE_MATCH(X86_FEATURE_PCLMULQDQ), + {} +}; +MODULE_DEVICE_TABLE(x86cpu, crct10dif_cpu_id); + +static int __init crct10dif_intel_mod_init(void) +{ + if (!x86_match_cpu(crct10dif_cpu_id)) + return -ENODEV; + + return crypto_register_shash(&alg); +} + +static void __exit crct10dif_intel_mod_fini(void) +{ + crypto_unregister_shash(&alg); +} + +module_init(crct10dif_intel_mod_init); +module_exit(crct10dif_intel_mod_fini); + +MODULE_AUTHOR("Tim Chen <tim.c.chen@linux.intel.com>"); +MODULE_DESCRIPTION("T10 DIF CRC calculation accelerated with PCLMULQDQ."); +MODULE_LICENSE("GPL"); + +MODULE_ALIAS_CRYPTO("crct10dif"); +MODULE_ALIAS_CRYPTO("crct10dif-pclmul"); diff --git a/arch/x86/crypto/des3_ede-asm_64.S b/arch/x86/crypto/des3_ede-asm_64.S new file mode 100644 index 000000000..8e49ce117 --- /dev/null +++ b/arch/x86/crypto/des3_ede-asm_64.S @@ -0,0 +1,808 @@ +/* + * des3_ede-asm_64.S - x86-64 assembly implementation of 3DES cipher + * + * Copyright © 2014 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/linkage.h> + +.file "des3_ede-asm_64.S" +.text + +#define s1 .L_s1 +#define s2 ((s1) + (64*8)) +#define s3 ((s2) + (64*8)) +#define s4 ((s3) + (64*8)) +#define s5 ((s4) + (64*8)) +#define s6 ((s5) + (64*8)) +#define s7 ((s6) + (64*8)) +#define s8 ((s7) + (64*8)) + +/* register macros */ +#define CTX %rdi + +#define RL0 %r8 +#define RL1 %r9 +#define RL2 %r10 + +#define RL0d %r8d +#define RL1d %r9d +#define RL2d %r10d + +#define RR0 %r11 +#define RR1 %r12 +#define RR2 %r13 + +#define RR0d %r11d +#define RR1d %r12d +#define RR2d %r13d + +#define RW0 %rax +#define RW1 %rbx +#define RW2 %rcx + +#define RW0d %eax +#define RW1d %ebx +#define RW2d %ecx + +#define RW0bl %al +#define RW1bl %bl +#define RW2bl %cl + +#define RW0bh %ah +#define RW1bh %bh +#define RW2bh %ch + +#define RT0 %r15 +#define RT1 %rsi +#define RT2 %r14 +#define RT3 %rdx + +#define RT0d %r15d +#define RT1d %esi +#define RT2d %r14d +#define RT3d %edx + +/*********************************************************************** + * 1-way 3DES + ***********************************************************************/ +#define do_permutation(a, b, offset, mask) \ + movl a, RT0d; \ + shrl $(offset), RT0d; \ + xorl b, RT0d; \ + andl $(mask), RT0d; \ + xorl RT0d, b; \ + shll $(offset), RT0d; \ + xorl RT0d, a; + +#define expand_to_64bits(val, mask) \ + movl val##d, RT0d; \ + rorl $4, RT0d; \ + shlq $32, RT0; \ + orq RT0, val; \ + andq mask, val; + +#define compress_to_64bits(val) \ + movq val, RT0; \ + shrq $32, RT0; \ + roll $4, RT0d; \ + orl RT0d, val##d; + +#define initial_permutation(left, right) \ + do_permutation(left##d, right##d, 4, 0x0f0f0f0f); \ + do_permutation(left##d, right##d, 16, 0x0000ffff); \ + do_permutation(right##d, left##d, 2, 0x33333333); \ + do_permutation(right##d, left##d, 8, 0x00ff00ff); \ + movabs $0x3f3f3f3f3f3f3f3f, RT3; \ + movl left##d, RW0d; \ + roll $1, right##d; \ + xorl right##d, RW0d; \ + andl $0xaaaaaaaa, RW0d; \ + xorl RW0d, left##d; \ + xorl RW0d, right##d; \ + roll $1, left##d; \ + expand_to_64bits(right, RT3); \ + expand_to_64bits(left, RT3); + +#define final_permutation(left, right) \ + compress_to_64bits(right); \ + compress_to_64bits(left); \ + movl right##d, RW0d; \ + rorl $1, left##d; \ + xorl left##d, RW0d; \ + andl $0xaaaaaaaa, RW0d; \ + xorl RW0d, right##d; \ + xorl RW0d, left##d; \ + rorl $1, right##d; \ + do_permutation(right##d, left##d, 8, 0x00ff00ff); \ + do_permutation(right##d, left##d, 2, 0x33333333); \ + do_permutation(left##d, right##d, 16, 0x0000ffff); \ + do_permutation(left##d, right##d, 4, 0x0f0f0f0f); + +#define round1(n, from, to, load_next_key) \ + xorq from, RW0; \ + \ + movzbl RW0bl, RT0d; \ + movzbl RW0bh, RT1d; \ + shrq $16, RW0; \ + movzbl RW0bl, RT2d; \ + movzbl RW0bh, RT3d; \ + shrq $16, RW0; \ + movq s8(, RT0, 8), RT0; \ + xorq s6(, RT1, 8), to; \ + movzbl RW0bl, RL1d; \ + movzbl RW0bh, RT1d; \ + shrl $16, RW0d; \ + xorq s4(, RT2, 8), RT0; \ + xorq s2(, RT3, 8), to; \ + movzbl RW0bl, RT2d; \ + movzbl RW0bh, RT3d; \ + xorq s7(, RL1, 8), RT0; \ + xorq s5(, RT1, 8), to; \ + xorq s3(, RT2, 8), RT0; \ + load_next_key(n, RW0); \ + xorq RT0, to; \ + xorq s1(, RT3, 8), to; \ + +#define load_next_key(n, RWx) \ + movq (((n) + 1) * 8)(CTX), RWx; + +#define dummy2(a, b) /*_*/ + +#define read_block(io, left, right) \ + movl (io), left##d; \ + movl 4(io), right##d; \ + bswapl left##d; \ + bswapl right##d; + +#define write_block(io, left, right) \ + bswapl left##d; \ + bswapl right##d; \ + movl left##d, (io); \ + movl right##d, 4(io); + +ENTRY(des3_ede_x86_64_crypt_blk) + /* input: + * %rdi: round keys, CTX + * %rsi: dst + * %rdx: src + */ + pushq %rbx; + pushq %r12; + pushq %r13; + pushq %r14; + pushq %r15; + + pushq %rsi; /* dst */ + + read_block(%rdx, RL0, RR0); + initial_permutation(RL0, RR0); + + movq (CTX), RW0; + + round1(0, RR0, RL0, load_next_key); + round1(1, RL0, RR0, load_next_key); + round1(2, RR0, RL0, load_next_key); + round1(3, RL0, RR0, load_next_key); + round1(4, RR0, RL0, load_next_key); + round1(5, RL0, RR0, load_next_key); + round1(6, RR0, RL0, load_next_key); + round1(7, RL0, RR0, load_next_key); + round1(8, RR0, RL0, load_next_key); + round1(9, RL0, RR0, load_next_key); + round1(10, RR0, RL0, load_next_key); + round1(11, RL0, RR0, load_next_key); + round1(12, RR0, RL0, load_next_key); + round1(13, RL0, RR0, load_next_key); + round1(14, RR0, RL0, load_next_key); + round1(15, RL0, RR0, load_next_key); + + round1(16+0, RL0, RR0, load_next_key); + round1(16+1, RR0, RL0, load_next_key); + round1(16+2, RL0, RR0, load_next_key); + round1(16+3, RR0, RL0, load_next_key); + round1(16+4, RL0, RR0, load_next_key); + round1(16+5, RR0, RL0, load_next_key); + round1(16+6, RL0, RR0, load_next_key); + round1(16+7, RR0, RL0, load_next_key); + round1(16+8, RL0, RR0, load_next_key); + round1(16+9, RR0, RL0, load_next_key); + round1(16+10, RL0, RR0, load_next_key); + round1(16+11, RR0, RL0, load_next_key); + round1(16+12, RL0, RR0, load_next_key); + round1(16+13, RR0, RL0, load_next_key); + round1(16+14, RL0, RR0, load_next_key); + round1(16+15, RR0, RL0, load_next_key); + + round1(32+0, RR0, RL0, load_next_key); + round1(32+1, RL0, RR0, load_next_key); + round1(32+2, RR0, RL0, load_next_key); + round1(32+3, RL0, RR0, load_next_key); + round1(32+4, RR0, RL0, load_next_key); + round1(32+5, RL0, RR0, load_next_key); + round1(32+6, RR0, RL0, load_next_key); + round1(32+7, RL0, RR0, load_next_key); + round1(32+8, RR0, RL0, load_next_key); + round1(32+9, RL0, RR0, load_next_key); + round1(32+10, RR0, RL0, load_next_key); + round1(32+11, RL0, RR0, load_next_key); + round1(32+12, RR0, RL0, load_next_key); + round1(32+13, RL0, RR0, load_next_key); + round1(32+14, RR0, RL0, load_next_key); + round1(32+15, RL0, RR0, dummy2); + + final_permutation(RR0, RL0); + + popq %rsi /* dst */ + write_block(%rsi, RR0, RL0); + + popq %r15; + popq %r14; + popq %r13; + popq %r12; + popq %rbx; + + ret; +ENDPROC(des3_ede_x86_64_crypt_blk) + +/*********************************************************************** + * 3-way 3DES + ***********************************************************************/ +#define expand_to_64bits(val, mask) \ + movl val##d, RT0d; \ + rorl $4, RT0d; \ + shlq $32, RT0; \ + orq RT0, val; \ + andq mask, val; + +#define compress_to_64bits(val) \ + movq val, RT0; \ + shrq $32, RT0; \ + roll $4, RT0d; \ + orl RT0d, val##d; + +#define initial_permutation3(left, right) \ + do_permutation(left##0d, right##0d, 4, 0x0f0f0f0f); \ + do_permutation(left##0d, right##0d, 16, 0x0000ffff); \ + do_permutation(left##1d, right##1d, 4, 0x0f0f0f0f); \ + do_permutation(left##1d, right##1d, 16, 0x0000ffff); \ + do_permutation(left##2d, right##2d, 4, 0x0f0f0f0f); \ + do_permutation(left##2d, right##2d, 16, 0x0000ffff); \ + \ + do_permutation(right##0d, left##0d, 2, 0x33333333); \ + do_permutation(right##0d, left##0d, 8, 0x00ff00ff); \ + do_permutation(right##1d, left##1d, 2, 0x33333333); \ + do_permutation(right##1d, left##1d, 8, 0x00ff00ff); \ + do_permutation(right##2d, left##2d, 2, 0x33333333); \ + do_permutation(right##2d, left##2d, 8, 0x00ff00ff); \ + \ + movabs $0x3f3f3f3f3f3f3f3f, RT3; \ + \ + movl left##0d, RW0d; \ + roll $1, right##0d; \ + xorl right##0d, RW0d; \ + andl $0xaaaaaaaa, RW0d; \ + xorl RW0d, left##0d; \ + xorl RW0d, right##0d; \ + roll $1, left##0d; \ + expand_to_64bits(right##0, RT3); \ + expand_to_64bits(left##0, RT3); \ + movl left##1d, RW1d; \ + roll $1, right##1d; \ + xorl right##1d, RW1d; \ + andl $0xaaaaaaaa, RW1d; \ + xorl RW1d, left##1d; \ + xorl RW1d, right##1d; \ + roll $1, left##1d; \ + expand_to_64bits(right##1, RT3); \ + expand_to_64bits(left##1, RT3); \ + movl left##2d, RW2d; \ + roll $1, right##2d; \ + xorl right##2d, RW2d; \ + andl $0xaaaaaaaa, RW2d; \ + xorl RW2d, left##2d; \ + xorl RW2d, right##2d; \ + roll $1, left##2d; \ + expand_to_64bits(right##2, RT3); \ + expand_to_64bits(left##2, RT3); + +#define final_permutation3(left, right) \ + compress_to_64bits(right##0); \ + compress_to_64bits(left##0); \ + movl right##0d, RW0d; \ + rorl $1, left##0d; \ + xorl left##0d, RW0d; \ + andl $0xaaaaaaaa, RW0d; \ + xorl RW0d, right##0d; \ + xorl RW0d, left##0d; \ + rorl $1, right##0d; \ + compress_to_64bits(right##1); \ + compress_to_64bits(left##1); \ + movl right##1d, RW1d; \ + rorl $1, left##1d; \ + xorl left##1d, RW1d; \ + andl $0xaaaaaaaa, RW1d; \ + xorl RW1d, right##1d; \ + xorl RW1d, left##1d; \ + rorl $1, right##1d; \ + compress_to_64bits(right##2); \ + compress_to_64bits(left##2); \ + movl right##2d, RW2d; \ + rorl $1, left##2d; \ + xorl left##2d, RW2d; \ + andl $0xaaaaaaaa, RW2d; \ + xorl RW2d, right##2d; \ + xorl RW2d, left##2d; \ + rorl $1, right##2d; \ + \ + do_permutation(right##0d, left##0d, 8, 0x00ff00ff); \ + do_permutation(right##0d, left##0d, 2, 0x33333333); \ + do_permutation(right##1d, left##1d, 8, 0x00ff00ff); \ + do_permutation(right##1d, left##1d, 2, 0x33333333); \ + do_permutation(right##2d, left##2d, 8, 0x00ff00ff); \ + do_permutation(right##2d, left##2d, 2, 0x33333333); \ + \ + do_permutation(left##0d, right##0d, 16, 0x0000ffff); \ + do_permutation(left##0d, right##0d, 4, 0x0f0f0f0f); \ + do_permutation(left##1d, right##1d, 16, 0x0000ffff); \ + do_permutation(left##1d, right##1d, 4, 0x0f0f0f0f); \ + do_permutation(left##2d, right##2d, 16, 0x0000ffff); \ + do_permutation(left##2d, right##2d, 4, 0x0f0f0f0f); + +#define round3(n, from, to, load_next_key, do_movq) \ + xorq from##0, RW0; \ + movzbl RW0bl, RT3d; \ + movzbl RW0bh, RT1d; \ + shrq $16, RW0; \ + xorq s8(, RT3, 8), to##0; \ + xorq s6(, RT1, 8), to##0; \ + movzbl RW0bl, RT3d; \ + movzbl RW0bh, RT1d; \ + shrq $16, RW0; \ + xorq s4(, RT3, 8), to##0; \ + xorq s2(, RT1, 8), to##0; \ + movzbl RW0bl, RT3d; \ + movzbl RW0bh, RT1d; \ + shrl $16, RW0d; \ + xorq s7(, RT3, 8), to##0; \ + xorq s5(, RT1, 8), to##0; \ + movzbl RW0bl, RT3d; \ + movzbl RW0bh, RT1d; \ + load_next_key(n, RW0); \ + xorq s3(, RT3, 8), to##0; \ + xorq s1(, RT1, 8), to##0; \ + xorq from##1, RW1; \ + movzbl RW1bl, RT3d; \ + movzbl RW1bh, RT1d; \ + shrq $16, RW1; \ + xorq s8(, RT3, 8), to##1; \ + xorq s6(, RT1, 8), to##1; \ + movzbl RW1bl, RT3d; \ + movzbl RW1bh, RT1d; \ + shrq $16, RW1; \ + xorq s4(, RT3, 8), to##1; \ + xorq s2(, RT1, 8), to##1; \ + movzbl RW1bl, RT3d; \ + movzbl RW1bh, RT1d; \ + shrl $16, RW1d; \ + xorq s7(, RT3, 8), to##1; \ + xorq s5(, RT1, 8), to##1; \ + movzbl RW1bl, RT3d; \ + movzbl RW1bh, RT1d; \ + do_movq(RW0, RW1); \ + xorq s3(, RT3, 8), to##1; \ + xorq s1(, RT1, 8), to##1; \ + xorq from##2, RW2; \ + movzbl RW2bl, RT3d; \ + movzbl RW2bh, RT1d; \ + shrq $16, RW2; \ + xorq s8(, RT3, 8), to##2; \ + xorq s6(, RT1, 8), to##2; \ + movzbl RW2bl, RT3d; \ + movzbl RW2bh, RT1d; \ + shrq $16, RW2; \ + xorq s4(, RT3, 8), to##2; \ + xorq s2(, RT1, 8), to##2; \ + movzbl RW2bl, RT3d; \ + movzbl RW2bh, RT1d; \ + shrl $16, RW2d; \ + xorq s7(, RT3, 8), to##2; \ + xorq s5(, RT1, 8), to##2; \ + movzbl RW2bl, RT3d; \ + movzbl RW2bh, RT1d; \ + do_movq(RW0, RW2); \ + xorq s3(, RT3, 8), to##2; \ + xorq s1(, RT1, 8), to##2; + +#define __movq(src, dst) \ + movq src, dst; + +ENTRY(des3_ede_x86_64_crypt_blk_3way) + /* input: + * %rdi: ctx, round keys + * %rsi: dst (3 blocks) + * %rdx: src (3 blocks) + */ + + pushq %rbx; + pushq %r12; + pushq %r13; + pushq %r14; + pushq %r15; + + pushq %rsi /* dst */ + + /* load input */ + movl 0 * 4(%rdx), RL0d; + movl 1 * 4(%rdx), RR0d; + movl 2 * 4(%rdx), RL1d; + movl 3 * 4(%rdx), RR1d; + movl 4 * 4(%rdx), RL2d; + movl 5 * 4(%rdx), RR2d; + + bswapl RL0d; + bswapl RR0d; + bswapl RL1d; + bswapl RR1d; + bswapl RL2d; + bswapl RR2d; + + initial_permutation3(RL, RR); + + movq 0(CTX), RW0; + movq RW0, RW1; + movq RW0, RW2; + + round3(0, RR, RL, load_next_key, __movq); + round3(1, RL, RR, load_next_key, __movq); + round3(2, RR, RL, load_next_key, __movq); + round3(3, RL, RR, load_next_key, __movq); + round3(4, RR, RL, load_next_key, __movq); + round3(5, RL, RR, load_next_key, __movq); + round3(6, RR, RL, load_next_key, __movq); + round3(7, RL, RR, load_next_key, __movq); + round3(8, RR, RL, load_next_key, __movq); + round3(9, RL, RR, load_next_key, __movq); + round3(10, RR, RL, load_next_key, __movq); + round3(11, RL, RR, load_next_key, __movq); + round3(12, RR, RL, load_next_key, __movq); + round3(13, RL, RR, load_next_key, __movq); + round3(14, RR, RL, load_next_key, __movq); + round3(15, RL, RR, load_next_key, __movq); + + round3(16+0, RL, RR, load_next_key, __movq); + round3(16+1, RR, RL, load_next_key, __movq); + round3(16+2, RL, RR, load_next_key, __movq); + round3(16+3, RR, RL, load_next_key, __movq); + round3(16+4, RL, RR, load_next_key, __movq); + round3(16+5, RR, RL, load_next_key, __movq); + round3(16+6, RL, RR, load_next_key, __movq); + round3(16+7, RR, RL, load_next_key, __movq); + round3(16+8, RL, RR, load_next_key, __movq); + round3(16+9, RR, RL, load_next_key, __movq); + round3(16+10, RL, RR, load_next_key, __movq); + round3(16+11, RR, RL, load_next_key, __movq); + round3(16+12, RL, RR, load_next_key, __movq); + round3(16+13, RR, RL, load_next_key, __movq); + round3(16+14, RL, RR, load_next_key, __movq); + round3(16+15, RR, RL, load_next_key, __movq); + + round3(32+0, RR, RL, load_next_key, __movq); + round3(32+1, RL, RR, load_next_key, __movq); + round3(32+2, RR, RL, load_next_key, __movq); + round3(32+3, RL, RR, load_next_key, __movq); + round3(32+4, RR, RL, load_next_key, __movq); + round3(32+5, RL, RR, load_next_key, __movq); + round3(32+6, RR, RL, load_next_key, __movq); + round3(32+7, RL, RR, load_next_key, __movq); + round3(32+8, RR, RL, load_next_key, __movq); + round3(32+9, RL, RR, load_next_key, __movq); + round3(32+10, RR, RL, load_next_key, __movq); + round3(32+11, RL, RR, load_next_key, __movq); + round3(32+12, RR, RL, load_next_key, __movq); + round3(32+13, RL, RR, load_next_key, __movq); + round3(32+14, RR, RL, load_next_key, __movq); + round3(32+15, RL, RR, dummy2, dummy2); + + final_permutation3(RR, RL); + + bswapl RR0d; + bswapl RL0d; + bswapl RR1d; + bswapl RL1d; + bswapl RR2d; + bswapl RL2d; + + popq %rsi /* dst */ + movl RR0d, 0 * 4(%rsi); + movl RL0d, 1 * 4(%rsi); + movl RR1d, 2 * 4(%rsi); + movl RL1d, 3 * 4(%rsi); + movl RR2d, 4 * 4(%rsi); + movl RL2d, 5 * 4(%rsi); + + popq %r15; + popq %r14; + popq %r13; + popq %r12; + popq %rbx; + + ret; +ENDPROC(des3_ede_x86_64_crypt_blk_3way) + +.section .rodata, "a", @progbits +.align 16 +.L_s1: + .quad 0x0010100001010400, 0x0000000000000000 + .quad 0x0000100000010000, 0x0010100001010404 + .quad 0x0010100001010004, 0x0000100000010404 + .quad 0x0000000000000004, 0x0000100000010000 + .quad 0x0000000000000400, 0x0010100001010400 + .quad 0x0010100001010404, 0x0000000000000400 + .quad 0x0010000001000404, 0x0010100001010004 + .quad 0x0010000001000000, 0x0000000000000004 + .quad 0x0000000000000404, 0x0010000001000400 + .quad 0x0010000001000400, 0x0000100000010400 + .quad 0x0000100000010400, 0x0010100001010000 + .quad 0x0010100001010000, 0x0010000001000404 + .quad 0x0000100000010004, 0x0010000001000004 + .quad 0x0010000001000004, 0x0000100000010004 + .quad 0x0000000000000000, 0x0000000000000404 + .quad 0x0000100000010404, 0x0010000001000000 + .quad 0x0000100000010000, 0x0010100001010404 + .quad 0x0000000000000004, 0x0010100001010000 + .quad 0x0010100001010400, 0x0010000001000000 + .quad 0x0010000001000000, 0x0000000000000400 + .quad 0x0010100001010004, 0x0000100000010000 + .quad 0x0000100000010400, 0x0010000001000004 + .quad 0x0000000000000400, 0x0000000000000004 + .quad 0x0010000001000404, 0x0000100000010404 + .quad 0x0010100001010404, 0x0000100000010004 + .quad 0x0010100001010000, 0x0010000001000404 + .quad 0x0010000001000004, 0x0000000000000404 + .quad 0x0000100000010404, 0x0010100001010400 + .quad 0x0000000000000404, 0x0010000001000400 + .quad 0x0010000001000400, 0x0000000000000000 + .quad 0x0000100000010004, 0x0000100000010400 + .quad 0x0000000000000000, 0x0010100001010004 +.L_s2: + .quad 0x0801080200100020, 0x0800080000000000 + .quad 0x0000080000000000, 0x0001080200100020 + .quad 0x0001000000100000, 0x0000000200000020 + .quad 0x0801000200100020, 0x0800080200000020 + .quad 0x0800000200000020, 0x0801080200100020 + .quad 0x0801080000100000, 0x0800000000000000 + .quad 0x0800080000000000, 0x0001000000100000 + .quad 0x0000000200000020, 0x0801000200100020 + .quad 0x0001080000100000, 0x0001000200100020 + .quad 0x0800080200000020, 0x0000000000000000 + .quad 0x0800000000000000, 0x0000080000000000 + .quad 0x0001080200100020, 0x0801000000100000 + .quad 0x0001000200100020, 0x0800000200000020 + .quad 0x0000000000000000, 0x0001080000100000 + .quad 0x0000080200000020, 0x0801080000100000 + .quad 0x0801000000100000, 0x0000080200000020 + .quad 0x0000000000000000, 0x0001080200100020 + .quad 0x0801000200100020, 0x0001000000100000 + .quad 0x0800080200000020, 0x0801000000100000 + .quad 0x0801080000100000, 0x0000080000000000 + .quad 0x0801000000100000, 0x0800080000000000 + .quad 0x0000000200000020, 0x0801080200100020 + .quad 0x0001080200100020, 0x0000000200000020 + .quad 0x0000080000000000, 0x0800000000000000 + .quad 0x0000080200000020, 0x0801080000100000 + .quad 0x0001000000100000, 0x0800000200000020 + .quad 0x0001000200100020, 0x0800080200000020 + .quad 0x0800000200000020, 0x0001000200100020 + .quad 0x0001080000100000, 0x0000000000000000 + .quad 0x0800080000000000, 0x0000080200000020 + .quad 0x0800000000000000, 0x0801000200100020 + .quad 0x0801080200100020, 0x0001080000100000 +.L_s3: + .quad 0x0000002000000208, 0x0000202008020200 + .quad 0x0000000000000000, 0x0000200008020008 + .quad 0x0000002008000200, 0x0000000000000000 + .quad 0x0000202000020208, 0x0000002008000200 + .quad 0x0000200000020008, 0x0000000008000008 + .quad 0x0000000008000008, 0x0000200000020000 + .quad 0x0000202008020208, 0x0000200000020008 + .quad 0x0000200008020000, 0x0000002000000208 + .quad 0x0000000008000000, 0x0000000000000008 + .quad 0x0000202008020200, 0x0000002000000200 + .quad 0x0000202000020200, 0x0000200008020000 + .quad 0x0000200008020008, 0x0000202000020208 + .quad 0x0000002008000208, 0x0000202000020200 + .quad 0x0000200000020000, 0x0000002008000208 + .quad 0x0000000000000008, 0x0000202008020208 + .quad 0x0000002000000200, 0x0000000008000000 + .quad 0x0000202008020200, 0x0000000008000000 + .quad 0x0000200000020008, 0x0000002000000208 + .quad 0x0000200000020000, 0x0000202008020200 + .quad 0x0000002008000200, 0x0000000000000000 + .quad 0x0000002000000200, 0x0000200000020008 + .quad 0x0000202008020208, 0x0000002008000200 + .quad 0x0000000008000008, 0x0000002000000200 + .quad 0x0000000000000000, 0x0000200008020008 + .quad 0x0000002008000208, 0x0000200000020000 + .quad 0x0000000008000000, 0x0000202008020208 + .quad 0x0000000000000008, 0x0000202000020208 + .quad 0x0000202000020200, 0x0000000008000008 + .quad 0x0000200008020000, 0x0000002008000208 + .quad 0x0000002000000208, 0x0000200008020000 + .quad 0x0000202000020208, 0x0000000000000008 + .quad 0x0000200008020008, 0x0000202000020200 +.L_s4: + .quad 0x1008020000002001, 0x1000020800002001 + .quad 0x1000020800002001, 0x0000000800000000 + .quad 0x0008020800002000, 0x1008000800000001 + .quad 0x1008000000000001, 0x1000020000002001 + .quad 0x0000000000000000, 0x0008020000002000 + .quad 0x0008020000002000, 0x1008020800002001 + .quad 0x1000000800000001, 0x0000000000000000 + .quad 0x0008000800000000, 0x1008000000000001 + .quad 0x1000000000000001, 0x0000020000002000 + .quad 0x0008000000000000, 0x1008020000002001 + .quad 0x0000000800000000, 0x0008000000000000 + .quad 0x1000020000002001, 0x0000020800002000 + .quad 0x1008000800000001, 0x1000000000000001 + .quad 0x0000020800002000, 0x0008000800000000 + .quad 0x0000020000002000, 0x0008020800002000 + .quad 0x1008020800002001, 0x1000000800000001 + .quad 0x0008000800000000, 0x1008000000000001 + .quad 0x0008020000002000, 0x1008020800002001 + .quad 0x1000000800000001, 0x0000000000000000 + .quad 0x0000000000000000, 0x0008020000002000 + .quad 0x0000020800002000, 0x0008000800000000 + .quad 0x1008000800000001, 0x1000000000000001 + .quad 0x1008020000002001, 0x1000020800002001 + .quad 0x1000020800002001, 0x0000000800000000 + .quad 0x1008020800002001, 0x1000000800000001 + .quad 0x1000000000000001, 0x0000020000002000 + .quad 0x1008000000000001, 0x1000020000002001 + .quad 0x0008020800002000, 0x1008000800000001 + .quad 0x1000020000002001, 0x0000020800002000 + .quad 0x0008000000000000, 0x1008020000002001 + .quad 0x0000000800000000, 0x0008000000000000 + .quad 0x0000020000002000, 0x0008020800002000 +.L_s5: + .quad 0x0000001000000100, 0x0020001002080100 + .quad 0x0020000002080000, 0x0420001002000100 + .quad 0x0000000000080000, 0x0000001000000100 + .quad 0x0400000000000000, 0x0020000002080000 + .quad 0x0400001000080100, 0x0000000000080000 + .quad 0x0020001002000100, 0x0400001000080100 + .quad 0x0420001002000100, 0x0420000002080000 + .quad 0x0000001000080100, 0x0400000000000000 + .quad 0x0020000002000000, 0x0400000000080000 + .quad 0x0400000000080000, 0x0000000000000000 + .quad 0x0400001000000100, 0x0420001002080100 + .quad 0x0420001002080100, 0x0020001002000100 + .quad 0x0420000002080000, 0x0400001000000100 + .quad 0x0000000000000000, 0x0420000002000000 + .quad 0x0020001002080100, 0x0020000002000000 + .quad 0x0420000002000000, 0x0000001000080100 + .quad 0x0000000000080000, 0x0420001002000100 + .quad 0x0000001000000100, 0x0020000002000000 + .quad 0x0400000000000000, 0x0020000002080000 + .quad 0x0420001002000100, 0x0400001000080100 + .quad 0x0020001002000100, 0x0400000000000000 + .quad 0x0420000002080000, 0x0020001002080100 + .quad 0x0400001000080100, 0x0000001000000100 + .quad 0x0020000002000000, 0x0420000002080000 + .quad 0x0420001002080100, 0x0000001000080100 + .quad 0x0420000002000000, 0x0420001002080100 + .quad 0x0020000002080000, 0x0000000000000000 + .quad 0x0400000000080000, 0x0420000002000000 + .quad 0x0000001000080100, 0x0020001002000100 + .quad 0x0400001000000100, 0x0000000000080000 + .quad 0x0000000000000000, 0x0400000000080000 + .quad 0x0020001002080100, 0x0400001000000100 +.L_s6: + .quad 0x0200000120000010, 0x0204000020000000 + .quad 0x0000040000000000, 0x0204040120000010 + .quad 0x0204000020000000, 0x0000000100000010 + .quad 0x0204040120000010, 0x0004000000000000 + .quad 0x0200040020000000, 0x0004040100000010 + .quad 0x0004000000000000, 0x0200000120000010 + .quad 0x0004000100000010, 0x0200040020000000 + .quad 0x0200000020000000, 0x0000040100000010 + .quad 0x0000000000000000, 0x0004000100000010 + .quad 0x0200040120000010, 0x0000040000000000 + .quad 0x0004040000000000, 0x0200040120000010 + .quad 0x0000000100000010, 0x0204000120000010 + .quad 0x0204000120000010, 0x0000000000000000 + .quad 0x0004040100000010, 0x0204040020000000 + .quad 0x0000040100000010, 0x0004040000000000 + .quad 0x0204040020000000, 0x0200000020000000 + .quad 0x0200040020000000, 0x0000000100000010 + .quad 0x0204000120000010, 0x0004040000000000 + .quad 0x0204040120000010, 0x0004000000000000 + .quad 0x0000040100000010, 0x0200000120000010 + .quad 0x0004000000000000, 0x0200040020000000 + .quad 0x0200000020000000, 0x0000040100000010 + .quad 0x0200000120000010, 0x0204040120000010 + .quad 0x0004040000000000, 0x0204000020000000 + .quad 0x0004040100000010, 0x0204040020000000 + .quad 0x0000000000000000, 0x0204000120000010 + .quad 0x0000000100000010, 0x0000040000000000 + .quad 0x0204000020000000, 0x0004040100000010 + .quad 0x0000040000000000, 0x0004000100000010 + .quad 0x0200040120000010, 0x0000000000000000 + .quad 0x0204040020000000, 0x0200000020000000 + .quad 0x0004000100000010, 0x0200040120000010 +.L_s7: + .quad 0x0002000000200000, 0x2002000004200002 + .quad 0x2000000004000802, 0x0000000000000000 + .quad 0x0000000000000800, 0x2000000004000802 + .quad 0x2002000000200802, 0x0002000004200800 + .quad 0x2002000004200802, 0x0002000000200000 + .quad 0x0000000000000000, 0x2000000004000002 + .quad 0x2000000000000002, 0x0000000004000000 + .quad 0x2002000004200002, 0x2000000000000802 + .quad 0x0000000004000800, 0x2002000000200802 + .quad 0x2002000000200002, 0x0000000004000800 + .quad 0x2000000004000002, 0x0002000004200000 + .quad 0x0002000004200800, 0x2002000000200002 + .quad 0x0002000004200000, 0x0000000000000800 + .quad 0x2000000000000802, 0x2002000004200802 + .quad 0x0002000000200800, 0x2000000000000002 + .quad 0x0000000004000000, 0x0002000000200800 + .quad 0x0000000004000000, 0x0002000000200800 + .quad 0x0002000000200000, 0x2000000004000802 + .quad 0x2000000004000802, 0x2002000004200002 + .quad 0x2002000004200002, 0x2000000000000002 + .quad 0x2002000000200002, 0x0000000004000000 + .quad 0x0000000004000800, 0x0002000000200000 + .quad 0x0002000004200800, 0x2000000000000802 + .quad 0x2002000000200802, 0x0002000004200800 + .quad 0x2000000000000802, 0x2000000004000002 + .quad 0x2002000004200802, 0x0002000004200000 + .quad 0x0002000000200800, 0x0000000000000000 + .quad 0x2000000000000002, 0x2002000004200802 + .quad 0x0000000000000000, 0x2002000000200802 + .quad 0x0002000004200000, 0x0000000000000800 + .quad 0x2000000004000002, 0x0000000004000800 + .quad 0x0000000000000800, 0x2002000000200002 +.L_s8: + .quad 0x0100010410001000, 0x0000010000001000 + .quad 0x0000000000040000, 0x0100010410041000 + .quad 0x0100000010000000, 0x0100010410001000 + .quad 0x0000000400000000, 0x0100000010000000 + .quad 0x0000000400040000, 0x0100000010040000 + .quad 0x0100010410041000, 0x0000010000041000 + .quad 0x0100010010041000, 0x0000010400041000 + .quad 0x0000010000001000, 0x0000000400000000 + .quad 0x0100000010040000, 0x0100000410000000 + .quad 0x0100010010001000, 0x0000010400001000 + .quad 0x0000010000041000, 0x0000000400040000 + .quad 0x0100000410040000, 0x0100010010041000 + .quad 0x0000010400001000, 0x0000000000000000 + .quad 0x0000000000000000, 0x0100000410040000 + .quad 0x0100000410000000, 0x0100010010001000 + .quad 0x0000010400041000, 0x0000000000040000 + .quad 0x0000010400041000, 0x0000000000040000 + .quad 0x0100010010041000, 0x0000010000001000 + .quad 0x0000000400000000, 0x0100000410040000 + .quad 0x0000010000001000, 0x0000010400041000 + .quad 0x0100010010001000, 0x0000000400000000 + .quad 0x0100000410000000, 0x0100000010040000 + .quad 0x0100000410040000, 0x0100000010000000 + .quad 0x0000000000040000, 0x0100010410001000 + .quad 0x0000000000000000, 0x0100010410041000 + .quad 0x0000000400040000, 0x0100000410000000 + .quad 0x0100000010040000, 0x0100010010001000 + .quad 0x0100010410001000, 0x0000000000000000 + .quad 0x0100010410041000, 0x0000010000041000 + .quad 0x0000010000041000, 0x0000010400001000 + .quad 0x0000010400001000, 0x0000000400040000 + .quad 0x0100000010000000, 0x0100010010041000 diff --git a/arch/x86/crypto/des3_ede_glue.c b/arch/x86/crypto/des3_ede_glue.c new file mode 100644 index 000000000..5c610d4ef --- /dev/null +++ b/arch/x86/crypto/des3_ede_glue.c @@ -0,0 +1,506 @@ +/* + * Glue Code for assembler optimized version of 3DES + * + * Copyright © 2014 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by: + * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> + * CTR part based on code (crypto/ctr.c) by: + * (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <crypto/algapi.h> +#include <crypto/des.h> +#include <crypto/internal/skcipher.h> +#include <linux/crypto.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> + +struct des3_ede_x86_ctx { + u32 enc_expkey[DES3_EDE_EXPKEY_WORDS]; + u32 dec_expkey[DES3_EDE_EXPKEY_WORDS]; +}; + +/* regular block cipher functions */ +asmlinkage void des3_ede_x86_64_crypt_blk(const u32 *expkey, u8 *dst, + const u8 *src); + +/* 3-way parallel cipher functions */ +asmlinkage void des3_ede_x86_64_crypt_blk_3way(const u32 *expkey, u8 *dst, + const u8 *src); + +static inline void des3_ede_enc_blk(struct des3_ede_x86_ctx *ctx, u8 *dst, + const u8 *src) +{ + u32 *enc_ctx = ctx->enc_expkey; + + des3_ede_x86_64_crypt_blk(enc_ctx, dst, src); +} + +static inline void des3_ede_dec_blk(struct des3_ede_x86_ctx *ctx, u8 *dst, + const u8 *src) +{ + u32 *dec_ctx = ctx->dec_expkey; + + des3_ede_x86_64_crypt_blk(dec_ctx, dst, src); +} + +static inline void des3_ede_enc_blk_3way(struct des3_ede_x86_ctx *ctx, u8 *dst, + const u8 *src) +{ + u32 *enc_ctx = ctx->enc_expkey; + + des3_ede_x86_64_crypt_blk_3way(enc_ctx, dst, src); +} + +static inline void des3_ede_dec_blk_3way(struct des3_ede_x86_ctx *ctx, u8 *dst, + const u8 *src) +{ + u32 *dec_ctx = ctx->dec_expkey; + + des3_ede_x86_64_crypt_blk_3way(dec_ctx, dst, src); +} + +static void des3_ede_x86_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + des3_ede_enc_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static void des3_ede_x86_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + des3_ede_dec_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static int ecb_crypt(struct skcipher_request *req, const u32 *expkey) +{ + const unsigned int bsize = DES3_EDE_BLOCK_SIZE; + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + u8 *wsrc = walk.src.virt.addr; + u8 *wdst = walk.dst.virt.addr; + + /* Process four block batch */ + if (nbytes >= bsize * 3) { + do { + des3_ede_x86_64_crypt_blk_3way(expkey, wdst, + wsrc); + + wsrc += bsize * 3; + wdst += bsize * 3; + nbytes -= bsize * 3; + } while (nbytes >= bsize * 3); + + if (nbytes < bsize) + goto done; + } + + /* Handle leftovers */ + do { + des3_ede_x86_64_crypt_blk(expkey, wdst, wsrc); + + wsrc += bsize; + wdst += bsize; + nbytes -= bsize; + } while (nbytes >= bsize); + +done: + err = skcipher_walk_done(&walk, nbytes); + } + + return err; +} + +static int ecb_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm); + + return ecb_crypt(req, ctx->enc_expkey); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm); + + return ecb_crypt(req, ctx->dec_expkey); +} + +static unsigned int __cbc_encrypt(struct des3_ede_x86_ctx *ctx, + struct skcipher_walk *walk) +{ + unsigned int bsize = DES3_EDE_BLOCK_SIZE; + unsigned int nbytes = walk->nbytes; + u64 *src = (u64 *)walk->src.virt.addr; + u64 *dst = (u64 *)walk->dst.virt.addr; + u64 *iv = (u64 *)walk->iv; + + do { + *dst = *src ^ *iv; + des3_ede_enc_blk(ctx, (u8 *)dst, (u8 *)dst); + iv = dst; + + src += 1; + dst += 1; + nbytes -= bsize; + } while (nbytes >= bsize); + + *(u64 *)walk->iv = *iv; + return nbytes; +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + nbytes = __cbc_encrypt(ctx, &walk); + err = skcipher_walk_done(&walk, nbytes); + } + + return err; +} + +static unsigned int __cbc_decrypt(struct des3_ede_x86_ctx *ctx, + struct skcipher_walk *walk) +{ + unsigned int bsize = DES3_EDE_BLOCK_SIZE; + unsigned int nbytes = walk->nbytes; + u64 *src = (u64 *)walk->src.virt.addr; + u64 *dst = (u64 *)walk->dst.virt.addr; + u64 ivs[3 - 1]; + u64 last_iv; + + /* Start of the last block. */ + src += nbytes / bsize - 1; + dst += nbytes / bsize - 1; + + last_iv = *src; + + /* Process four block batch */ + if (nbytes >= bsize * 3) { + do { + nbytes -= bsize * 3 - bsize; + src -= 3 - 1; + dst -= 3 - 1; + + ivs[0] = src[0]; + ivs[1] = src[1]; + + des3_ede_dec_blk_3way(ctx, (u8 *)dst, (u8 *)src); + + dst[1] ^= ivs[0]; + dst[2] ^= ivs[1]; + + nbytes -= bsize; + if (nbytes < bsize) + goto done; + + *dst ^= *(src - 1); + src -= 1; + dst -= 1; + } while (nbytes >= bsize * 3); + } + + /* Handle leftovers */ + for (;;) { + des3_ede_dec_blk(ctx, (u8 *)dst, (u8 *)src); + + nbytes -= bsize; + if (nbytes < bsize) + break; + + *dst ^= *(src - 1); + src -= 1; + dst -= 1; + } + +done: + *dst ^= *(u64 *)walk->iv; + *(u64 *)walk->iv = last_iv; + + return nbytes; +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + nbytes = __cbc_decrypt(ctx, &walk); + err = skcipher_walk_done(&walk, nbytes); + } + + return err; +} + +static void ctr_crypt_final(struct des3_ede_x86_ctx *ctx, + struct skcipher_walk *walk) +{ + u8 *ctrblk = walk->iv; + u8 keystream[DES3_EDE_BLOCK_SIZE]; + u8 *src = walk->src.virt.addr; + u8 *dst = walk->dst.virt.addr; + unsigned int nbytes = walk->nbytes; + + des3_ede_enc_blk(ctx, keystream, ctrblk); + crypto_xor_cpy(dst, keystream, src, nbytes); + + crypto_inc(ctrblk, DES3_EDE_BLOCK_SIZE); +} + +static unsigned int __ctr_crypt(struct des3_ede_x86_ctx *ctx, + struct skcipher_walk *walk) +{ + unsigned int bsize = DES3_EDE_BLOCK_SIZE; + unsigned int nbytes = walk->nbytes; + __be64 *src = (__be64 *)walk->src.virt.addr; + __be64 *dst = (__be64 *)walk->dst.virt.addr; + u64 ctrblk = be64_to_cpu(*(__be64 *)walk->iv); + __be64 ctrblocks[3]; + + /* Process four block batch */ + if (nbytes >= bsize * 3) { + do { + /* create ctrblks for parallel encrypt */ + ctrblocks[0] = cpu_to_be64(ctrblk++); + ctrblocks[1] = cpu_to_be64(ctrblk++); + ctrblocks[2] = cpu_to_be64(ctrblk++); + + des3_ede_enc_blk_3way(ctx, (u8 *)ctrblocks, + (u8 *)ctrblocks); + + dst[0] = src[0] ^ ctrblocks[0]; + dst[1] = src[1] ^ ctrblocks[1]; + dst[2] = src[2] ^ ctrblocks[2]; + + src += 3; + dst += 3; + } while ((nbytes -= bsize * 3) >= bsize * 3); + + if (nbytes < bsize) + goto done; + } + + /* Handle leftovers */ + do { + ctrblocks[0] = cpu_to_be64(ctrblk++); + + des3_ede_enc_blk(ctx, (u8 *)ctrblocks, (u8 *)ctrblocks); + + dst[0] = src[0] ^ ctrblocks[0]; + + src += 1; + dst += 1; + } while ((nbytes -= bsize) >= bsize); + +done: + *(__be64 *)walk->iv = cpu_to_be64(ctrblk); + return nbytes; +} + +static int ctr_crypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm); + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes) >= DES3_EDE_BLOCK_SIZE) { + nbytes = __ctr_crypt(ctx, &walk); + err = skcipher_walk_done(&walk, nbytes); + } + + if (nbytes) { + ctr_crypt_final(ctx, &walk); + err = skcipher_walk_done(&walk, 0); + } + + return err; +} + +static int des3_ede_x86_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen) +{ + struct des3_ede_x86_ctx *ctx = crypto_tfm_ctx(tfm); + u32 i, j, tmp; + int err; + + /* Generate encryption context using generic implementation. */ + err = __des3_ede_setkey(ctx->enc_expkey, &tfm->crt_flags, key, keylen); + if (err < 0) + return err; + + /* Fix encryption context for this implementation and form decryption + * context. */ + j = DES3_EDE_EXPKEY_WORDS - 2; + for (i = 0; i < DES3_EDE_EXPKEY_WORDS; i += 2, j -= 2) { + tmp = ror32(ctx->enc_expkey[i + 1], 4); + ctx->enc_expkey[i + 1] = tmp; + + ctx->dec_expkey[j + 0] = ctx->enc_expkey[i + 0]; + ctx->dec_expkey[j + 1] = tmp; + } + + return 0; +} + +static int des3_ede_x86_setkey_skcipher(struct crypto_skcipher *tfm, + const u8 *key, + unsigned int keylen) +{ + return des3_ede_x86_setkey(&tfm->base, key, keylen); +} + +static struct crypto_alg des3_ede_cipher = { + .cra_name = "des3_ede", + .cra_driver_name = "des3_ede-asm", + .cra_priority = 200, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct des3_ede_x86_ctx), + .cra_alignmask = 0, + .cra_module = THIS_MODULE, + .cra_u = { + .cipher = { + .cia_min_keysize = DES3_EDE_KEY_SIZE, + .cia_max_keysize = DES3_EDE_KEY_SIZE, + .cia_setkey = des3_ede_x86_setkey, + .cia_encrypt = des3_ede_x86_encrypt, + .cia_decrypt = des3_ede_x86_decrypt, + } + } +}; + +static struct skcipher_alg des3_ede_skciphers[] = { + { + .base.cra_name = "ecb(des3_ede)", + .base.cra_driver_name = "ecb-des3_ede-asm", + .base.cra_priority = 300, + .base.cra_blocksize = DES3_EDE_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct des3_ede_x86_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .setkey = des3_ede_x86_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "cbc(des3_ede)", + .base.cra_driver_name = "cbc-des3_ede-asm", + .base.cra_priority = 300, + .base.cra_blocksize = DES3_EDE_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct des3_ede_x86_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .ivsize = DES3_EDE_BLOCK_SIZE, + .setkey = des3_ede_x86_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "ctr(des3_ede)", + .base.cra_driver_name = "ctr-des3_ede-asm", + .base.cra_priority = 300, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct des3_ede_x86_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .ivsize = DES3_EDE_BLOCK_SIZE, + .chunksize = DES3_EDE_BLOCK_SIZE, + .setkey = des3_ede_x86_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + } +}; + +static bool is_blacklisted_cpu(void) +{ + if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) + return false; + + if (boot_cpu_data.x86 == 0x0f) { + /* + * On Pentium 4, des3_ede-x86_64 is slower than generic C + * implementation because use of 64bit rotates (which are really + * slow on P4). Therefore blacklist P4s. + */ + return true; + } + + return false; +} + +static int force; +module_param(force, int, 0); +MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist"); + +static int __init des3_ede_x86_init(void) +{ + int err; + + if (!force && is_blacklisted_cpu()) { + pr_info("des3_ede-x86_64: performance on this CPU would be suboptimal: disabling des3_ede-x86_64.\n"); + return -ENODEV; + } + + err = crypto_register_alg(&des3_ede_cipher); + if (err) + return err; + + err = crypto_register_skciphers(des3_ede_skciphers, + ARRAY_SIZE(des3_ede_skciphers)); + if (err) + crypto_unregister_alg(&des3_ede_cipher); + + return err; +} + +static void __exit des3_ede_x86_fini(void) +{ + crypto_unregister_alg(&des3_ede_cipher); + crypto_unregister_skciphers(des3_ede_skciphers, + ARRAY_SIZE(des3_ede_skciphers)); +} + +module_init(des3_ede_x86_init); +module_exit(des3_ede_x86_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Triple DES EDE Cipher Algorithm, asm optimized"); +MODULE_ALIAS_CRYPTO("des3_ede"); +MODULE_ALIAS_CRYPTO("des3_ede-asm"); +MODULE_AUTHOR("Jussi Kivilinna <jussi.kivilinna@iki.fi>"); diff --git a/arch/x86/crypto/fpu.c b/arch/x86/crypto/fpu.c new file mode 100644 index 000000000..406680476 --- /dev/null +++ b/arch/x86/crypto/fpu.c @@ -0,0 +1,207 @@ +/* + * FPU: Wrapper for blkcipher touching fpu + * + * Copyright (c) Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ + +#include <crypto/internal/skcipher.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <asm/fpu/api.h> + +struct crypto_fpu_ctx { + struct crypto_skcipher *child; +}; + +static int crypto_fpu_setkey(struct crypto_skcipher *parent, const u8 *key, + unsigned int keylen) +{ + struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(parent); + struct crypto_skcipher *child = ctx->child; + int err; + + crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK); + crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) & + CRYPTO_TFM_REQ_MASK); + err = crypto_skcipher_setkey(child, key, keylen); + crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) & + CRYPTO_TFM_RES_MASK); + return err; +} + +static int crypto_fpu_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(tfm); + struct crypto_skcipher *child = ctx->child; + SKCIPHER_REQUEST_ON_STACK(subreq, child); + int err; + + skcipher_request_set_tfm(subreq, child); + skcipher_request_set_callback(subreq, 0, NULL, NULL); + skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen, + req->iv); + + kernel_fpu_begin(); + err = crypto_skcipher_encrypt(subreq); + kernel_fpu_end(); + + skcipher_request_zero(subreq); + return err; +} + +static int crypto_fpu_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(tfm); + struct crypto_skcipher *child = ctx->child; + SKCIPHER_REQUEST_ON_STACK(subreq, child); + int err; + + skcipher_request_set_tfm(subreq, child); + skcipher_request_set_callback(subreq, 0, NULL, NULL); + skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen, + req->iv); + + kernel_fpu_begin(); + err = crypto_skcipher_decrypt(subreq); + kernel_fpu_end(); + + skcipher_request_zero(subreq); + return err; +} + +static int crypto_fpu_init_tfm(struct crypto_skcipher *tfm) +{ + struct skcipher_instance *inst = skcipher_alg_instance(tfm); + struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(tfm); + struct crypto_skcipher_spawn *spawn; + struct crypto_skcipher *cipher; + + spawn = skcipher_instance_ctx(inst); + cipher = crypto_spawn_skcipher(spawn); + if (IS_ERR(cipher)) + return PTR_ERR(cipher); + + ctx->child = cipher; + + return 0; +} + +static void crypto_fpu_exit_tfm(struct crypto_skcipher *tfm) +{ + struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(tfm); + + crypto_free_skcipher(ctx->child); +} + +static void crypto_fpu_free(struct skcipher_instance *inst) +{ + crypto_drop_skcipher(skcipher_instance_ctx(inst)); + kfree(inst); +} + +static int crypto_fpu_create(struct crypto_template *tmpl, struct rtattr **tb) +{ + struct crypto_skcipher_spawn *spawn; + struct skcipher_instance *inst; + struct crypto_attr_type *algt; + struct skcipher_alg *alg; + const char *cipher_name; + int err; + + algt = crypto_get_attr_type(tb); + if (IS_ERR(algt)) + return PTR_ERR(algt); + + if ((algt->type ^ (CRYPTO_ALG_INTERNAL | CRYPTO_ALG_TYPE_SKCIPHER)) & + algt->mask) + return -EINVAL; + + if (!(algt->mask & CRYPTO_ALG_INTERNAL)) + return -EINVAL; + + cipher_name = crypto_attr_alg_name(tb[1]); + if (IS_ERR(cipher_name)) + return PTR_ERR(cipher_name); + + inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL); + if (!inst) + return -ENOMEM; + + spawn = skcipher_instance_ctx(inst); + + crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst)); + err = crypto_grab_skcipher(spawn, cipher_name, CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL | CRYPTO_ALG_ASYNC); + if (err) + goto out_free_inst; + + alg = crypto_skcipher_spawn_alg(spawn); + + err = crypto_inst_setname(skcipher_crypto_instance(inst), "fpu", + &alg->base); + if (err) + goto out_drop_skcipher; + + inst->alg.base.cra_flags = CRYPTO_ALG_INTERNAL; + inst->alg.base.cra_priority = alg->base.cra_priority; + inst->alg.base.cra_blocksize = alg->base.cra_blocksize; + inst->alg.base.cra_alignmask = alg->base.cra_alignmask; + + inst->alg.ivsize = crypto_skcipher_alg_ivsize(alg); + inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg); + inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg); + + inst->alg.base.cra_ctxsize = sizeof(struct crypto_fpu_ctx); + + inst->alg.init = crypto_fpu_init_tfm; + inst->alg.exit = crypto_fpu_exit_tfm; + + inst->alg.setkey = crypto_fpu_setkey; + inst->alg.encrypt = crypto_fpu_encrypt; + inst->alg.decrypt = crypto_fpu_decrypt; + + inst->free = crypto_fpu_free; + + err = skcipher_register_instance(tmpl, inst); + if (err) + goto out_drop_skcipher; + +out: + return err; + +out_drop_skcipher: + crypto_drop_skcipher(spawn); +out_free_inst: + kfree(inst); + goto out; +} + +static struct crypto_template crypto_fpu_tmpl = { + .name = "fpu", + .create = crypto_fpu_create, + .module = THIS_MODULE, +}; + +int __init crypto_fpu_init(void) +{ + return crypto_register_template(&crypto_fpu_tmpl); +} + +void crypto_fpu_exit(void) +{ + crypto_unregister_template(&crypto_fpu_tmpl); +} + +MODULE_ALIAS_CRYPTO("fpu"); diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S new file mode 100644 index 000000000..f94375a8d --- /dev/null +++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S @@ -0,0 +1,136 @@ +/* + * Accelerated GHASH implementation with Intel PCLMULQDQ-NI + * instructions. This file contains accelerated part of ghash + * implementation. More information about PCLMULQDQ can be found at: + * + * http://software.intel.com/en-us/articles/carry-less-multiplication-and-its-usage-for-computing-the-gcm-mode/ + * + * Copyright (c) 2009 Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * Vinodh Gopal + * Erdinc Ozturk + * Deniz Karakoyunlu + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <asm/inst.h> +#include <asm/frame.h> + +.section .rodata.cst16.bswap_mask, "aM", @progbits, 16 +.align 16 +.Lbswap_mask: + .octa 0x000102030405060708090a0b0c0d0e0f + +#define DATA %xmm0 +#define SHASH %xmm1 +#define T1 %xmm2 +#define T2 %xmm3 +#define T3 %xmm4 +#define BSWAP %xmm5 +#define IN1 %xmm6 + +.text + +/* + * __clmul_gf128mul_ble: internal ABI + * input: + * DATA: operand1 + * SHASH: operand2, hash_key << 1 mod poly + * output: + * DATA: operand1 * operand2 mod poly + * changed: + * T1 + * T2 + * T3 + */ +__clmul_gf128mul_ble: + movaps DATA, T1 + pshufd $0b01001110, DATA, T2 + pshufd $0b01001110, SHASH, T3 + pxor DATA, T2 + pxor SHASH, T3 + + PCLMULQDQ 0x00 SHASH DATA # DATA = a0 * b0 + PCLMULQDQ 0x11 SHASH T1 # T1 = a1 * b1 + PCLMULQDQ 0x00 T3 T2 # T2 = (a1 + a0) * (b1 + b0) + pxor DATA, T2 + pxor T1, T2 # T2 = a0 * b1 + a1 * b0 + + movaps T2, T3 + pslldq $8, T3 + psrldq $8, T2 + pxor T3, DATA + pxor T2, T1 # <T1:DATA> is result of + # carry-less multiplication + + # first phase of the reduction + movaps DATA, T3 + psllq $1, T3 + pxor DATA, T3 + psllq $5, T3 + pxor DATA, T3 + psllq $57, T3 + movaps T3, T2 + pslldq $8, T2 + psrldq $8, T3 + pxor T2, DATA + pxor T3, T1 + + # second phase of the reduction + movaps DATA, T2 + psrlq $5, T2 + pxor DATA, T2 + psrlq $1, T2 + pxor DATA, T2 + psrlq $1, T2 + pxor T2, T1 + pxor T1, DATA + ret +ENDPROC(__clmul_gf128mul_ble) + +/* void clmul_ghash_mul(char *dst, const u128 *shash) */ +ENTRY(clmul_ghash_mul) + FRAME_BEGIN + movups (%rdi), DATA + movups (%rsi), SHASH + movaps .Lbswap_mask, BSWAP + PSHUFB_XMM BSWAP DATA + call __clmul_gf128mul_ble + PSHUFB_XMM BSWAP DATA + movups DATA, (%rdi) + FRAME_END + ret +ENDPROC(clmul_ghash_mul) + +/* + * void clmul_ghash_update(char *dst, const char *src, unsigned int srclen, + * const u128 *shash); + */ +ENTRY(clmul_ghash_update) + FRAME_BEGIN + cmp $16, %rdx + jb .Lupdate_just_ret # check length + movaps .Lbswap_mask, BSWAP + movups (%rdi), DATA + movups (%rcx), SHASH + PSHUFB_XMM BSWAP DATA +.align 4 +.Lupdate_loop: + movups (%rsi), IN1 + PSHUFB_XMM BSWAP IN1 + pxor IN1, DATA + call __clmul_gf128mul_ble + sub $16, %rdx + add $16, %rsi + cmp $16, %rdx + jge .Lupdate_loop + PSHUFB_XMM BSWAP DATA + movups DATA, (%rdi) +.Lupdate_just_ret: + FRAME_END + ret +ENDPROC(clmul_ghash_update) diff --git a/arch/x86/crypto/ghash-clmulni-intel_glue.c b/arch/x86/crypto/ghash-clmulni-intel_glue.c new file mode 100644 index 000000000..3582ae885 --- /dev/null +++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c @@ -0,0 +1,366 @@ +/* + * Accelerated GHASH implementation with Intel PCLMULQDQ-NI + * instructions. This file contains glue code. + * + * Copyright (c) 2009 Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/err.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/crypto.h> +#include <crypto/algapi.h> +#include <crypto/cryptd.h> +#include <crypto/gf128mul.h> +#include <crypto/internal/hash.h> +#include <asm/fpu/api.h> +#include <asm/cpu_device_id.h> + +#define GHASH_BLOCK_SIZE 16 +#define GHASH_DIGEST_SIZE 16 + +void clmul_ghash_mul(char *dst, const u128 *shash); + +void clmul_ghash_update(char *dst, const char *src, unsigned int srclen, + const u128 *shash); + +struct ghash_async_ctx { + struct cryptd_ahash *cryptd_tfm; +}; + +struct ghash_ctx { + u128 shash; +}; + +struct ghash_desc_ctx { + u8 buffer[GHASH_BLOCK_SIZE]; + u32 bytes; +}; + +static int ghash_init(struct shash_desc *desc) +{ + struct ghash_desc_ctx *dctx = shash_desc_ctx(desc); + + memset(dctx, 0, sizeof(*dctx)); + + return 0; +} + +static int ghash_setkey(struct crypto_shash *tfm, + const u8 *key, unsigned int keylen) +{ + struct ghash_ctx *ctx = crypto_shash_ctx(tfm); + be128 *x = (be128 *)key; + u64 a, b; + + if (keylen != GHASH_BLOCK_SIZE) { + crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + + /* perform multiplication by 'x' in GF(2^128) */ + a = be64_to_cpu(x->a); + b = be64_to_cpu(x->b); + + ctx->shash.a = (b << 1) | (a >> 63); + ctx->shash.b = (a << 1) | (b >> 63); + + if (a >> 63) + ctx->shash.b ^= ((u64)0xc2) << 56; + + return 0; +} + +static int ghash_update(struct shash_desc *desc, + const u8 *src, unsigned int srclen) +{ + struct ghash_desc_ctx *dctx = shash_desc_ctx(desc); + struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm); + u8 *dst = dctx->buffer; + + kernel_fpu_begin(); + if (dctx->bytes) { + int n = min(srclen, dctx->bytes); + u8 *pos = dst + (GHASH_BLOCK_SIZE - dctx->bytes); + + dctx->bytes -= n; + srclen -= n; + + while (n--) + *pos++ ^= *src++; + + if (!dctx->bytes) + clmul_ghash_mul(dst, &ctx->shash); + } + + clmul_ghash_update(dst, src, srclen, &ctx->shash); + kernel_fpu_end(); + + if (srclen & 0xf) { + src += srclen - (srclen & 0xf); + srclen &= 0xf; + dctx->bytes = GHASH_BLOCK_SIZE - srclen; + while (srclen--) + *dst++ ^= *src++; + } + + return 0; +} + +static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx) +{ + u8 *dst = dctx->buffer; + + if (dctx->bytes) { + u8 *tmp = dst + (GHASH_BLOCK_SIZE - dctx->bytes); + + while (dctx->bytes--) + *tmp++ ^= 0; + + kernel_fpu_begin(); + clmul_ghash_mul(dst, &ctx->shash); + kernel_fpu_end(); + } + + dctx->bytes = 0; +} + +static int ghash_final(struct shash_desc *desc, u8 *dst) +{ + struct ghash_desc_ctx *dctx = shash_desc_ctx(desc); + struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm); + u8 *buf = dctx->buffer; + + ghash_flush(ctx, dctx); + memcpy(dst, buf, GHASH_BLOCK_SIZE); + + return 0; +} + +static struct shash_alg ghash_alg = { + .digestsize = GHASH_DIGEST_SIZE, + .init = ghash_init, + .update = ghash_update, + .final = ghash_final, + .setkey = ghash_setkey, + .descsize = sizeof(struct ghash_desc_ctx), + .base = { + .cra_name = "__ghash", + .cra_driver_name = "__ghash-pclmulqdqni", + .cra_priority = 0, + .cra_flags = CRYPTO_ALG_INTERNAL, + .cra_blocksize = GHASH_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct ghash_ctx), + .cra_module = THIS_MODULE, + }, +}; + +static int ghash_async_init(struct ahash_request *req) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm); + struct ahash_request *cryptd_req = ahash_request_ctx(req); + struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm; + struct shash_desc *desc = cryptd_shash_desc(cryptd_req); + struct crypto_shash *child = cryptd_ahash_child(cryptd_tfm); + + desc->tfm = child; + desc->flags = req->base.flags; + return crypto_shash_init(desc); +} + +static int ghash_async_update(struct ahash_request *req) +{ + struct ahash_request *cryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm); + struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm; + + if (!irq_fpu_usable() || + (in_atomic() && cryptd_ahash_queued(cryptd_tfm))) { + memcpy(cryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base); + return crypto_ahash_update(cryptd_req); + } else { + struct shash_desc *desc = cryptd_shash_desc(cryptd_req); + return shash_ahash_update(req, desc); + } +} + +static int ghash_async_final(struct ahash_request *req) +{ + struct ahash_request *cryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm); + struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm; + + if (!irq_fpu_usable() || + (in_atomic() && cryptd_ahash_queued(cryptd_tfm))) { + memcpy(cryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base); + return crypto_ahash_final(cryptd_req); + } else { + struct shash_desc *desc = cryptd_shash_desc(cryptd_req); + return crypto_shash_final(desc, req->result); + } +} + +static int ghash_async_import(struct ahash_request *req, const void *in) +{ + struct ahash_request *cryptd_req = ahash_request_ctx(req); + struct shash_desc *desc = cryptd_shash_desc(cryptd_req); + struct ghash_desc_ctx *dctx = shash_desc_ctx(desc); + + ghash_async_init(req); + memcpy(dctx, in, sizeof(*dctx)); + return 0; + +} + +static int ghash_async_export(struct ahash_request *req, void *out) +{ + struct ahash_request *cryptd_req = ahash_request_ctx(req); + struct shash_desc *desc = cryptd_shash_desc(cryptd_req); + struct ghash_desc_ctx *dctx = shash_desc_ctx(desc); + + memcpy(out, dctx, sizeof(*dctx)); + return 0; + +} + +static int ghash_async_digest(struct ahash_request *req) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm); + struct ahash_request *cryptd_req = ahash_request_ctx(req); + struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm; + + if (!irq_fpu_usable() || + (in_atomic() && cryptd_ahash_queued(cryptd_tfm))) { + memcpy(cryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base); + return crypto_ahash_digest(cryptd_req); + } else { + struct shash_desc *desc = cryptd_shash_desc(cryptd_req); + struct crypto_shash *child = cryptd_ahash_child(cryptd_tfm); + + desc->tfm = child; + desc->flags = req->base.flags; + return shash_ahash_digest(req, desc); + } +} + +static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int keylen) +{ + struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm); + struct crypto_ahash *child = &ctx->cryptd_tfm->base; + int err; + + crypto_ahash_clear_flags(child, CRYPTO_TFM_REQ_MASK); + crypto_ahash_set_flags(child, crypto_ahash_get_flags(tfm) + & CRYPTO_TFM_REQ_MASK); + err = crypto_ahash_setkey(child, key, keylen); + crypto_ahash_set_flags(tfm, crypto_ahash_get_flags(child) + & CRYPTO_TFM_RES_MASK); + + return err; +} + +static int ghash_async_init_tfm(struct crypto_tfm *tfm) +{ + struct cryptd_ahash *cryptd_tfm; + struct ghash_async_ctx *ctx = crypto_tfm_ctx(tfm); + + cryptd_tfm = cryptd_alloc_ahash("__ghash-pclmulqdqni", + CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(cryptd_tfm)) + return PTR_ERR(cryptd_tfm); + ctx->cryptd_tfm = cryptd_tfm; + crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), + sizeof(struct ahash_request) + + crypto_ahash_reqsize(&cryptd_tfm->base)); + + return 0; +} + +static void ghash_async_exit_tfm(struct crypto_tfm *tfm) +{ + struct ghash_async_ctx *ctx = crypto_tfm_ctx(tfm); + + cryptd_free_ahash(ctx->cryptd_tfm); +} + +static struct ahash_alg ghash_async_alg = { + .init = ghash_async_init, + .update = ghash_async_update, + .final = ghash_async_final, + .setkey = ghash_async_setkey, + .digest = ghash_async_digest, + .export = ghash_async_export, + .import = ghash_async_import, + .halg = { + .digestsize = GHASH_DIGEST_SIZE, + .statesize = sizeof(struct ghash_desc_ctx), + .base = { + .cra_name = "ghash", + .cra_driver_name = "ghash-clmulni", + .cra_priority = 400, + .cra_ctxsize = sizeof(struct ghash_async_ctx), + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = GHASH_BLOCK_SIZE, + .cra_module = THIS_MODULE, + .cra_init = ghash_async_init_tfm, + .cra_exit = ghash_async_exit_tfm, + }, + }, +}; + +static const struct x86_cpu_id pcmul_cpu_id[] = { + X86_FEATURE_MATCH(X86_FEATURE_PCLMULQDQ), /* Pickle-Mickle-Duck */ + {} +}; +MODULE_DEVICE_TABLE(x86cpu, pcmul_cpu_id); + +static int __init ghash_pclmulqdqni_mod_init(void) +{ + int err; + + if (!x86_match_cpu(pcmul_cpu_id)) + return -ENODEV; + + err = crypto_register_shash(&ghash_alg); + if (err) + goto err_out; + err = crypto_register_ahash(&ghash_async_alg); + if (err) + goto err_shash; + + return 0; + +err_shash: + crypto_unregister_shash(&ghash_alg); +err_out: + return err; +} + +static void __exit ghash_pclmulqdqni_mod_exit(void) +{ + crypto_unregister_ahash(&ghash_async_alg); + crypto_unregister_shash(&ghash_alg); +} + +module_init(ghash_pclmulqdqni_mod_init); +module_exit(ghash_pclmulqdqni_mod_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("GHASH Message Digest Algorithm, " + "accelerated by PCLMULQDQ-NI"); +MODULE_ALIAS_CRYPTO("ghash"); diff --git a/arch/x86/crypto/glue_helper-asm-avx.S b/arch/x86/crypto/glue_helper-asm-avx.S new file mode 100644 index 000000000..02ee2308f --- /dev/null +++ b/arch/x86/crypto/glue_helper-asm-avx.S @@ -0,0 +1,150 @@ +/* + * Shared glue code for 128bit block ciphers, AVX assembler macros + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#define load_8way(src, x0, x1, x2, x3, x4, x5, x6, x7) \ + vmovdqu (0*16)(src), x0; \ + vmovdqu (1*16)(src), x1; \ + vmovdqu (2*16)(src), x2; \ + vmovdqu (3*16)(src), x3; \ + vmovdqu (4*16)(src), x4; \ + vmovdqu (5*16)(src), x5; \ + vmovdqu (6*16)(src), x6; \ + vmovdqu (7*16)(src), x7; + +#define store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7) \ + vmovdqu x0, (0*16)(dst); \ + vmovdqu x1, (1*16)(dst); \ + vmovdqu x2, (2*16)(dst); \ + vmovdqu x3, (3*16)(dst); \ + vmovdqu x4, (4*16)(dst); \ + vmovdqu x5, (5*16)(dst); \ + vmovdqu x6, (6*16)(dst); \ + vmovdqu x7, (7*16)(dst); + +#define store_cbc_8way(src, dst, x0, x1, x2, x3, x4, x5, x6, x7) \ + vpxor (0*16)(src), x1, x1; \ + vpxor (1*16)(src), x2, x2; \ + vpxor (2*16)(src), x3, x3; \ + vpxor (3*16)(src), x4, x4; \ + vpxor (4*16)(src), x5, x5; \ + vpxor (5*16)(src), x6, x6; \ + vpxor (6*16)(src), x7, x7; \ + store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7); + +#define inc_le128(x, minus_one, tmp) \ + vpcmpeqq minus_one, x, tmp; \ + vpsubq minus_one, x, x; \ + vpslldq $8, tmp, tmp; \ + vpsubq tmp, x, x; + +#define load_ctr_8way(iv, bswap, x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2) \ + vpcmpeqd t0, t0, t0; \ + vpsrldq $8, t0, t0; /* low: -1, high: 0 */ \ + vmovdqa bswap, t1; \ + \ + /* load IV and byteswap */ \ + vmovdqu (iv), x7; \ + vpshufb t1, x7, x0; \ + \ + /* construct IVs */ \ + inc_le128(x7, t0, t2); \ + vpshufb t1, x7, x1; \ + inc_le128(x7, t0, t2); \ + vpshufb t1, x7, x2; \ + inc_le128(x7, t0, t2); \ + vpshufb t1, x7, x3; \ + inc_le128(x7, t0, t2); \ + vpshufb t1, x7, x4; \ + inc_le128(x7, t0, t2); \ + vpshufb t1, x7, x5; \ + inc_le128(x7, t0, t2); \ + vpshufb t1, x7, x6; \ + inc_le128(x7, t0, t2); \ + vmovdqa x7, t2; \ + vpshufb t1, x7, x7; \ + inc_le128(t2, t0, t1); \ + vmovdqu t2, (iv); + +#define store_ctr_8way(src, dst, x0, x1, x2, x3, x4, x5, x6, x7) \ + vpxor (0*16)(src), x0, x0; \ + vpxor (1*16)(src), x1, x1; \ + vpxor (2*16)(src), x2, x2; \ + vpxor (3*16)(src), x3, x3; \ + vpxor (4*16)(src), x4, x4; \ + vpxor (5*16)(src), x5, x5; \ + vpxor (6*16)(src), x6, x6; \ + vpxor (7*16)(src), x7, x7; \ + store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7); + +#define gf128mul_x_ble(iv, mask, tmp) \ + vpsrad $31, iv, tmp; \ + vpaddq iv, iv, iv; \ + vpshufd $0x13, tmp, tmp; \ + vpand mask, tmp, tmp; \ + vpxor tmp, iv, iv; + +#define load_xts_8way(iv, src, dst, x0, x1, x2, x3, x4, x5, x6, x7, tiv, t0, \ + t1, xts_gf128mul_and_shl1_mask) \ + vmovdqa xts_gf128mul_and_shl1_mask, t0; \ + \ + /* load IV */ \ + vmovdqu (iv), tiv; \ + vpxor (0*16)(src), tiv, x0; \ + vmovdqu tiv, (0*16)(dst); \ + \ + /* construct and store IVs, also xor with source */ \ + gf128mul_x_ble(tiv, t0, t1); \ + vpxor (1*16)(src), tiv, x1; \ + vmovdqu tiv, (1*16)(dst); \ + \ + gf128mul_x_ble(tiv, t0, t1); \ + vpxor (2*16)(src), tiv, x2; \ + vmovdqu tiv, (2*16)(dst); \ + \ + gf128mul_x_ble(tiv, t0, t1); \ + vpxor (3*16)(src), tiv, x3; \ + vmovdqu tiv, (3*16)(dst); \ + \ + gf128mul_x_ble(tiv, t0, t1); \ + vpxor (4*16)(src), tiv, x4; \ + vmovdqu tiv, (4*16)(dst); \ + \ + gf128mul_x_ble(tiv, t0, t1); \ + vpxor (5*16)(src), tiv, x5; \ + vmovdqu tiv, (5*16)(dst); \ + \ + gf128mul_x_ble(tiv, t0, t1); \ + vpxor (6*16)(src), tiv, x6; \ + vmovdqu tiv, (6*16)(dst); \ + \ + gf128mul_x_ble(tiv, t0, t1); \ + vpxor (7*16)(src), tiv, x7; \ + vmovdqu tiv, (7*16)(dst); \ + \ + gf128mul_x_ble(tiv, t0, t1); \ + vmovdqu tiv, (iv); + +#define store_xts_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7) \ + vpxor (0*16)(dst), x0, x0; \ + vpxor (1*16)(dst), x1, x1; \ + vpxor (2*16)(dst), x2, x2; \ + vpxor (3*16)(dst), x3, x3; \ + vpxor (4*16)(dst), x4, x4; \ + vpxor (5*16)(dst), x5, x5; \ + vpxor (6*16)(dst), x6, x6; \ + vpxor (7*16)(dst), x7, x7; \ + store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7); diff --git a/arch/x86/crypto/glue_helper-asm-avx2.S b/arch/x86/crypto/glue_helper-asm-avx2.S new file mode 100644 index 000000000..a53ac11dd --- /dev/null +++ b/arch/x86/crypto/glue_helper-asm-avx2.S @@ -0,0 +1,180 @@ +/* + * Shared glue code for 128bit block ciphers, AVX2 assembler macros + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#define load_16way(src, x0, x1, x2, x3, x4, x5, x6, x7) \ + vmovdqu (0*32)(src), x0; \ + vmovdqu (1*32)(src), x1; \ + vmovdqu (2*32)(src), x2; \ + vmovdqu (3*32)(src), x3; \ + vmovdqu (4*32)(src), x4; \ + vmovdqu (5*32)(src), x5; \ + vmovdqu (6*32)(src), x6; \ + vmovdqu (7*32)(src), x7; + +#define store_16way(dst, x0, x1, x2, x3, x4, x5, x6, x7) \ + vmovdqu x0, (0*32)(dst); \ + vmovdqu x1, (1*32)(dst); \ + vmovdqu x2, (2*32)(dst); \ + vmovdqu x3, (3*32)(dst); \ + vmovdqu x4, (4*32)(dst); \ + vmovdqu x5, (5*32)(dst); \ + vmovdqu x6, (6*32)(dst); \ + vmovdqu x7, (7*32)(dst); + +#define store_cbc_16way(src, dst, x0, x1, x2, x3, x4, x5, x6, x7, t0) \ + vpxor t0, t0, t0; \ + vinserti128 $1, (src), t0, t0; \ + vpxor t0, x0, x0; \ + vpxor (0*32+16)(src), x1, x1; \ + vpxor (1*32+16)(src), x2, x2; \ + vpxor (2*32+16)(src), x3, x3; \ + vpxor (3*32+16)(src), x4, x4; \ + vpxor (4*32+16)(src), x5, x5; \ + vpxor (5*32+16)(src), x6, x6; \ + vpxor (6*32+16)(src), x7, x7; \ + store_16way(dst, x0, x1, x2, x3, x4, x5, x6, x7); + +#define inc_le128(x, minus_one, tmp) \ + vpcmpeqq minus_one, x, tmp; \ + vpsubq minus_one, x, x; \ + vpslldq $8, tmp, tmp; \ + vpsubq tmp, x, x; + +#define add2_le128(x, minus_one, minus_two, tmp1, tmp2) \ + vpcmpeqq minus_one, x, tmp1; \ + vpcmpeqq minus_two, x, tmp2; \ + vpsubq minus_two, x, x; \ + vpor tmp2, tmp1, tmp1; \ + vpslldq $8, tmp1, tmp1; \ + vpsubq tmp1, x, x; + +#define load_ctr_16way(iv, bswap, x0, x1, x2, x3, x4, x5, x6, x7, t0, t0x, t1, \ + t1x, t2, t2x, t3, t3x, t4, t5) \ + vpcmpeqd t0, t0, t0; \ + vpsrldq $8, t0, t0; /* ab: -1:0 ; cd: -1:0 */ \ + vpaddq t0, t0, t4; /* ab: -2:0 ; cd: -2:0 */\ + \ + /* load IV and byteswap */ \ + vmovdqu (iv), t2x; \ + vmovdqa t2x, t3x; \ + inc_le128(t2x, t0x, t1x); \ + vbroadcasti128 bswap, t1; \ + vinserti128 $1, t2x, t3, t2; /* ab: le0 ; cd: le1 */ \ + vpshufb t1, t2, x0; \ + \ + /* construct IVs */ \ + add2_le128(t2, t0, t4, t3, t5); /* ab: le2 ; cd: le3 */ \ + vpshufb t1, t2, x1; \ + add2_le128(t2, t0, t4, t3, t5); \ + vpshufb t1, t2, x2; \ + add2_le128(t2, t0, t4, t3, t5); \ + vpshufb t1, t2, x3; \ + add2_le128(t2, t0, t4, t3, t5); \ + vpshufb t1, t2, x4; \ + add2_le128(t2, t0, t4, t3, t5); \ + vpshufb t1, t2, x5; \ + add2_le128(t2, t0, t4, t3, t5); \ + vpshufb t1, t2, x6; \ + add2_le128(t2, t0, t4, t3, t5); \ + vpshufb t1, t2, x7; \ + vextracti128 $1, t2, t2x; \ + inc_le128(t2x, t0x, t3x); \ + vmovdqu t2x, (iv); + +#define store_ctr_16way(src, dst, x0, x1, x2, x3, x4, x5, x6, x7) \ + vpxor (0*32)(src), x0, x0; \ + vpxor (1*32)(src), x1, x1; \ + vpxor (2*32)(src), x2, x2; \ + vpxor (3*32)(src), x3, x3; \ + vpxor (4*32)(src), x4, x4; \ + vpxor (5*32)(src), x5, x5; \ + vpxor (6*32)(src), x6, x6; \ + vpxor (7*32)(src), x7, x7; \ + store_16way(dst, x0, x1, x2, x3, x4, x5, x6, x7); + +#define gf128mul_x_ble(iv, mask, tmp) \ + vpsrad $31, iv, tmp; \ + vpaddq iv, iv, iv; \ + vpshufd $0x13, tmp, tmp; \ + vpand mask, tmp, tmp; \ + vpxor tmp, iv, iv; + +#define gf128mul_x2_ble(iv, mask1, mask2, tmp0, tmp1) \ + vpsrad $31, iv, tmp0; \ + vpaddq iv, iv, tmp1; \ + vpsllq $2, iv, iv; \ + vpshufd $0x13, tmp0, tmp0; \ + vpsrad $31, tmp1, tmp1; \ + vpand mask2, tmp0, tmp0; \ + vpshufd $0x13, tmp1, tmp1; \ + vpxor tmp0, iv, iv; \ + vpand mask1, tmp1, tmp1; \ + vpxor tmp1, iv, iv; + +#define load_xts_16way(iv, src, dst, x0, x1, x2, x3, x4, x5, x6, x7, tiv, \ + tivx, t0, t0x, t1, t1x, t2, t2x, t3, \ + xts_gf128mul_and_shl1_mask_0, \ + xts_gf128mul_and_shl1_mask_1) \ + vbroadcasti128 xts_gf128mul_and_shl1_mask_0, t1; \ + \ + /* load IV and construct second IV */ \ + vmovdqu (iv), tivx; \ + vmovdqa tivx, t0x; \ + gf128mul_x_ble(tivx, t1x, t2x); \ + vbroadcasti128 xts_gf128mul_and_shl1_mask_1, t2; \ + vinserti128 $1, tivx, t0, tiv; \ + vpxor (0*32)(src), tiv, x0; \ + vmovdqu tiv, (0*32)(dst); \ + \ + /* construct and store IVs, also xor with source */ \ + gf128mul_x2_ble(tiv, t1, t2, t0, t3); \ + vpxor (1*32)(src), tiv, x1; \ + vmovdqu tiv, (1*32)(dst); \ + \ + gf128mul_x2_ble(tiv, t1, t2, t0, t3); \ + vpxor (2*32)(src), tiv, x2; \ + vmovdqu tiv, (2*32)(dst); \ + \ + gf128mul_x2_ble(tiv, t1, t2, t0, t3); \ + vpxor (3*32)(src), tiv, x3; \ + vmovdqu tiv, (3*32)(dst); \ + \ + gf128mul_x2_ble(tiv, t1, t2, t0, t3); \ + vpxor (4*32)(src), tiv, x4; \ + vmovdqu tiv, (4*32)(dst); \ + \ + gf128mul_x2_ble(tiv, t1, t2, t0, t3); \ + vpxor (5*32)(src), tiv, x5; \ + vmovdqu tiv, (5*32)(dst); \ + \ + gf128mul_x2_ble(tiv, t1, t2, t0, t3); \ + vpxor (6*32)(src), tiv, x6; \ + vmovdqu tiv, (6*32)(dst); \ + \ + gf128mul_x2_ble(tiv, t1, t2, t0, t3); \ + vpxor (7*32)(src), tiv, x7; \ + vmovdqu tiv, (7*32)(dst); \ + \ + vextracti128 $1, tiv, tivx; \ + gf128mul_x_ble(tivx, t1x, t2x); \ + vmovdqu tivx, (iv); + +#define store_xts_16way(dst, x0, x1, x2, x3, x4, x5, x6, x7) \ + vpxor (0*32)(dst), x0, x0; \ + vpxor (1*32)(dst), x1, x1; \ + vpxor (2*32)(dst), x2, x2; \ + vpxor (3*32)(dst), x3, x3; \ + vpxor (4*32)(dst), x4, x4; \ + vpxor (5*32)(dst), x5, x5; \ + vpxor (6*32)(dst), x6, x6; \ + vpxor (7*32)(dst), x7, x7; \ + store_16way(dst, x0, x1, x2, x3, x4, x5, x6, x7); diff --git a/arch/x86/crypto/glue_helper.c b/arch/x86/crypto/glue_helper.c new file mode 100644 index 000000000..a78ef99a9 --- /dev/null +++ b/arch/x86/crypto/glue_helper.c @@ -0,0 +1,330 @@ +/* + * Shared glue code for 128bit block ciphers + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by: + * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> + * CTR part based on code (crypto/ctr.c) by: + * (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/module.h> +#include <crypto/b128ops.h> +#include <crypto/gf128mul.h> +#include <crypto/internal/skcipher.h> +#include <crypto/xts.h> +#include <asm/crypto/glue_helper.h> + +int glue_ecb_req_128bit(const struct common_glue_ctx *gctx, + struct skcipher_request *req) +{ + void *ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); + const unsigned int bsize = 128 / 8; + struct skcipher_walk walk; + bool fpu_enabled = false; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + const u8 *src = walk.src.virt.addr; + u8 *dst = walk.dst.virt.addr; + unsigned int func_bytes; + unsigned int i; + + fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit, + &walk, fpu_enabled, nbytes); + for (i = 0; i < gctx->num_funcs; i++) { + func_bytes = bsize * gctx->funcs[i].num_blocks; + + if (nbytes < func_bytes) + continue; + + /* Process multi-block batch */ + do { + gctx->funcs[i].fn_u.ecb(ctx, dst, src); + src += func_bytes; + dst += func_bytes; + nbytes -= func_bytes; + } while (nbytes >= func_bytes); + + if (nbytes < bsize) + break; + } + err = skcipher_walk_done(&walk, nbytes); + } + + glue_fpu_end(fpu_enabled); + return err; +} +EXPORT_SYMBOL_GPL(glue_ecb_req_128bit); + +int glue_cbc_encrypt_req_128bit(const common_glue_func_t fn, + struct skcipher_request *req) +{ + void *ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); + const unsigned int bsize = 128 / 8; + struct skcipher_walk walk; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + const u128 *src = (u128 *)walk.src.virt.addr; + u128 *dst = (u128 *)walk.dst.virt.addr; + u128 *iv = (u128 *)walk.iv; + + do { + u128_xor(dst, src, iv); + fn(ctx, (u8 *)dst, (u8 *)dst); + iv = dst; + src++; + dst++; + nbytes -= bsize; + } while (nbytes >= bsize); + + *(u128 *)walk.iv = *iv; + err = skcipher_walk_done(&walk, nbytes); + } + return err; +} +EXPORT_SYMBOL_GPL(glue_cbc_encrypt_req_128bit); + +int glue_cbc_decrypt_req_128bit(const struct common_glue_ctx *gctx, + struct skcipher_request *req) +{ + void *ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); + const unsigned int bsize = 128 / 8; + struct skcipher_walk walk; + bool fpu_enabled = false; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes)) { + const u128 *src = walk.src.virt.addr; + u128 *dst = walk.dst.virt.addr; + unsigned int func_bytes, num_blocks; + unsigned int i; + u128 last_iv; + + fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit, + &walk, fpu_enabled, nbytes); + /* Start of the last block. */ + src += nbytes / bsize - 1; + dst += nbytes / bsize - 1; + + last_iv = *src; + + for (i = 0; i < gctx->num_funcs; i++) { + num_blocks = gctx->funcs[i].num_blocks; + func_bytes = bsize * num_blocks; + + if (nbytes < func_bytes) + continue; + + /* Process multi-block batch */ + do { + src -= num_blocks - 1; + dst -= num_blocks - 1; + + gctx->funcs[i].fn_u.cbc(ctx, dst, src); + + nbytes -= func_bytes; + if (nbytes < bsize) + goto done; + + u128_xor(dst, dst, --src); + dst--; + } while (nbytes >= func_bytes); + } +done: + u128_xor(dst, dst, (u128 *)walk.iv); + *(u128 *)walk.iv = last_iv; + err = skcipher_walk_done(&walk, nbytes); + } + + glue_fpu_end(fpu_enabled); + return err; +} +EXPORT_SYMBOL_GPL(glue_cbc_decrypt_req_128bit); + +int glue_ctr_req_128bit(const struct common_glue_ctx *gctx, + struct skcipher_request *req) +{ + void *ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); + const unsigned int bsize = 128 / 8; + struct skcipher_walk walk; + bool fpu_enabled = false; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + + while ((nbytes = walk.nbytes) >= bsize) { + const u128 *src = walk.src.virt.addr; + u128 *dst = walk.dst.virt.addr; + unsigned int func_bytes, num_blocks; + unsigned int i; + le128 ctrblk; + + fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit, + &walk, fpu_enabled, nbytes); + + be128_to_le128(&ctrblk, (be128 *)walk.iv); + + for (i = 0; i < gctx->num_funcs; i++) { + num_blocks = gctx->funcs[i].num_blocks; + func_bytes = bsize * num_blocks; + + if (nbytes < func_bytes) + continue; + + /* Process multi-block batch */ + do { + gctx->funcs[i].fn_u.ctr(ctx, dst, src, &ctrblk); + src += num_blocks; + dst += num_blocks; + nbytes -= func_bytes; + } while (nbytes >= func_bytes); + + if (nbytes < bsize) + break; + } + + le128_to_be128((be128 *)walk.iv, &ctrblk); + err = skcipher_walk_done(&walk, nbytes); + } + + glue_fpu_end(fpu_enabled); + + if (nbytes) { + le128 ctrblk; + u128 tmp; + + be128_to_le128(&ctrblk, (be128 *)walk.iv); + memcpy(&tmp, walk.src.virt.addr, nbytes); + gctx->funcs[gctx->num_funcs - 1].fn_u.ctr(ctx, &tmp, &tmp, + &ctrblk); + memcpy(walk.dst.virt.addr, &tmp, nbytes); + le128_to_be128((be128 *)walk.iv, &ctrblk); + + err = skcipher_walk_done(&walk, 0); + } + + return err; +} +EXPORT_SYMBOL_GPL(glue_ctr_req_128bit); + +static unsigned int __glue_xts_req_128bit(const struct common_glue_ctx *gctx, + void *ctx, + struct skcipher_walk *walk) +{ + const unsigned int bsize = 128 / 8; + unsigned int nbytes = walk->nbytes; + u128 *src = walk->src.virt.addr; + u128 *dst = walk->dst.virt.addr; + unsigned int num_blocks, func_bytes; + unsigned int i; + + /* Process multi-block batch */ + for (i = 0; i < gctx->num_funcs; i++) { + num_blocks = gctx->funcs[i].num_blocks; + func_bytes = bsize * num_blocks; + + if (nbytes >= func_bytes) { + do { + gctx->funcs[i].fn_u.xts(ctx, dst, src, + walk->iv); + + src += num_blocks; + dst += num_blocks; + nbytes -= func_bytes; + } while (nbytes >= func_bytes); + + if (nbytes < bsize) + goto done; + } + } + +done: + return nbytes; +} + +int glue_xts_req_128bit(const struct common_glue_ctx *gctx, + struct skcipher_request *req, + common_glue_func_t tweak_fn, void *tweak_ctx, + void *crypt_ctx) +{ + const unsigned int bsize = 128 / 8; + struct skcipher_walk walk; + bool fpu_enabled = false; + unsigned int nbytes; + int err; + + err = skcipher_walk_virt(&walk, req, false); + nbytes = walk.nbytes; + if (!nbytes) + return err; + + /* set minimum length to bsize, for tweak_fn */ + fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit, + &walk, fpu_enabled, + nbytes < bsize ? bsize : nbytes); + + /* calculate first value of T */ + tweak_fn(tweak_ctx, walk.iv, walk.iv); + + while (nbytes) { + nbytes = __glue_xts_req_128bit(gctx, crypt_ctx, &walk); + + err = skcipher_walk_done(&walk, nbytes); + nbytes = walk.nbytes; + } + + glue_fpu_end(fpu_enabled); + + return err; +} +EXPORT_SYMBOL_GPL(glue_xts_req_128bit); + +void glue_xts_crypt_128bit_one(void *ctx, u128 *dst, const u128 *src, le128 *iv, + common_glue_func_t fn) +{ + le128 ivblk = *iv; + + /* generate next IV */ + gf128mul_x_ble(iv, &ivblk); + + /* CC <- T xor C */ + u128_xor(dst, src, (u128 *)&ivblk); + + /* PP <- D(Key2,CC) */ + fn(ctx, (u8 *)dst, (u8 *)dst); + + /* P <- T xor PP */ + u128_xor(dst, dst, (u128 *)&ivblk); +} +EXPORT_SYMBOL_GPL(glue_xts_crypt_128bit_one); + +MODULE_LICENSE("GPL"); diff --git a/arch/x86/crypto/morus1280-avx2-asm.S b/arch/x86/crypto/morus1280-avx2-asm.S new file mode 100644 index 000000000..de182c460 --- /dev/null +++ b/arch/x86/crypto/morus1280-avx2-asm.S @@ -0,0 +1,622 @@ +/* + * AVX2 implementation of MORUS-1280 + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> + +#define SHUFFLE_MASK(i0, i1, i2, i3) \ + (i0 | (i1 << 2) | (i2 << 4) | (i3 << 6)) + +#define MASK1 SHUFFLE_MASK(3, 0, 1, 2) +#define MASK2 SHUFFLE_MASK(2, 3, 0, 1) +#define MASK3 SHUFFLE_MASK(1, 2, 3, 0) + +#define STATE0 %ymm0 +#define STATE0_LOW %xmm0 +#define STATE1 %ymm1 +#define STATE2 %ymm2 +#define STATE3 %ymm3 +#define STATE4 %ymm4 +#define KEY %ymm5 +#define MSG %ymm5 +#define MSG_LOW %xmm5 +#define T0 %ymm6 +#define T0_LOW %xmm6 +#define T1 %ymm7 + +.section .rodata.cst32.morus1280_const, "aM", @progbits, 32 +.align 32 +.Lmorus1280_const: + .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d + .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 + .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 + .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd + +.section .rodata.cst32.morus1280_counter, "aM", @progbits, 32 +.align 32 +.Lmorus1280_counter: + .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 + .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f + .byte 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 + .byte 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f + +.text + +.macro morus1280_round s0, s1, s2, s3, s4, b, w + vpand \s1, \s2, T0 + vpxor T0, \s0, \s0 + vpxor \s3, \s0, \s0 + vpsllq $\b, \s0, T0 + vpsrlq $(64 - \b), \s0, \s0 + vpxor T0, \s0, \s0 + vpermq $\w, \s3, \s3 +.endm + +/* + * __morus1280_update: internal ABI + * input: + * STATE[0-4] - input state + * MSG - message block + * output: + * STATE[0-4] - output state + * changed: + * T0 + */ +__morus1280_update: + morus1280_round STATE0, STATE1, STATE2, STATE3, STATE4, 13, MASK1 + vpxor MSG, STATE1, STATE1 + morus1280_round STATE1, STATE2, STATE3, STATE4, STATE0, 46, MASK2 + vpxor MSG, STATE2, STATE2 + morus1280_round STATE2, STATE3, STATE4, STATE0, STATE1, 38, MASK3 + vpxor MSG, STATE3, STATE3 + morus1280_round STATE3, STATE4, STATE0, STATE1, STATE2, 7, MASK2 + vpxor MSG, STATE4, STATE4 + morus1280_round STATE4, STATE0, STATE1, STATE2, STATE3, 4, MASK1 + ret +ENDPROC(__morus1280_update) + +/* + * __morus1280_update_zero: internal ABI + * input: + * STATE[0-4] - input state + * output: + * STATE[0-4] - output state + * changed: + * T0 + */ +__morus1280_update_zero: + morus1280_round STATE0, STATE1, STATE2, STATE3, STATE4, 13, MASK1 + morus1280_round STATE1, STATE2, STATE3, STATE4, STATE0, 46, MASK2 + morus1280_round STATE2, STATE3, STATE4, STATE0, STATE1, 38, MASK3 + morus1280_round STATE3, STATE4, STATE0, STATE1, STATE2, 7, MASK2 + morus1280_round STATE4, STATE0, STATE1, STATE2, STATE3, 4, MASK1 + ret +ENDPROC(__morus1280_update_zero) + +/* + * __load_partial: internal ABI + * input: + * %rsi - src + * %rcx - bytes + * output: + * MSG - message block + * changed: + * %r8 + * %r9 + */ +__load_partial: + xor %r9d, %r9d + vpxor MSG, MSG, MSG + + mov %rcx, %r8 + and $0x1, %r8 + jz .Lld_partial_1 + + mov %rcx, %r8 + and $0x1E, %r8 + add %rsi, %r8 + mov (%r8), %r9b + +.Lld_partial_1: + mov %rcx, %r8 + and $0x2, %r8 + jz .Lld_partial_2 + + mov %rcx, %r8 + and $0x1C, %r8 + add %rsi, %r8 + shl $16, %r9 + mov (%r8), %r9w + +.Lld_partial_2: + mov %rcx, %r8 + and $0x4, %r8 + jz .Lld_partial_4 + + mov %rcx, %r8 + and $0x18, %r8 + add %rsi, %r8 + shl $32, %r9 + mov (%r8), %r8d + xor %r8, %r9 + +.Lld_partial_4: + movq %r9, MSG_LOW + + mov %rcx, %r8 + and $0x8, %r8 + jz .Lld_partial_8 + + mov %rcx, %r8 + and $0x10, %r8 + add %rsi, %r8 + pshufd $MASK2, MSG_LOW, MSG_LOW + pinsrq $0, (%r8), MSG_LOW + +.Lld_partial_8: + mov %rcx, %r8 + and $0x10, %r8 + jz .Lld_partial_16 + + vpermq $MASK2, MSG, MSG + movdqu (%rsi), MSG_LOW + +.Lld_partial_16: + ret +ENDPROC(__load_partial) + +/* + * __store_partial: internal ABI + * input: + * %rdx - dst + * %rcx - bytes + * output: + * T0 - message block + * changed: + * %r8 + * %r9 + * %r10 + */ +__store_partial: + mov %rcx, %r8 + mov %rdx, %r9 + + cmp $16, %r8 + jl .Lst_partial_16 + + movdqu T0_LOW, (%r9) + vpermq $MASK2, T0, T0 + + sub $16, %r8 + add $16, %r9 + +.Lst_partial_16: + movq T0_LOW, %r10 + + cmp $8, %r8 + jl .Lst_partial_8 + + mov %r10, (%r9) + pextrq $1, T0_LOW, %r10 + + sub $8, %r8 + add $8, %r9 + +.Lst_partial_8: + cmp $4, %r8 + jl .Lst_partial_4 + + mov %r10d, (%r9) + shr $32, %r10 + + sub $4, %r8 + add $4, %r9 + +.Lst_partial_4: + cmp $2, %r8 + jl .Lst_partial_2 + + mov %r10w, (%r9) + shr $16, %r10 + + sub $2, %r8 + add $2, %r9 + +.Lst_partial_2: + cmp $1, %r8 + jl .Lst_partial_1 + + mov %r10b, (%r9) + +.Lst_partial_1: + ret +ENDPROC(__store_partial) + +/* + * void crypto_morus1280_avx2_init(void *state, const void *key, + * const void *iv); + */ +ENTRY(crypto_morus1280_avx2_init) + FRAME_BEGIN + + /* load IV: */ + vpxor STATE0, STATE0, STATE0 + movdqu (%rdx), STATE0_LOW + /* load key: */ + vmovdqu (%rsi), KEY + vmovdqa KEY, STATE1 + /* load all ones: */ + vpcmpeqd STATE2, STATE2, STATE2 + /* load all zeros: */ + vpxor STATE3, STATE3, STATE3 + /* load the constant: */ + vmovdqa .Lmorus1280_const, STATE4 + + /* update 16 times with zero: */ + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + + /* xor-in the key again after updates: */ + vpxor KEY, STATE1, STATE1 + + /* store the state: */ + vmovdqu STATE0, (0 * 32)(%rdi) + vmovdqu STATE1, (1 * 32)(%rdi) + vmovdqu STATE2, (2 * 32)(%rdi) + vmovdqu STATE3, (3 * 32)(%rdi) + vmovdqu STATE4, (4 * 32)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus1280_avx2_init) + +/* + * void crypto_morus1280_avx2_ad(void *state, const void *data, + * unsigned int length); + */ +ENTRY(crypto_morus1280_avx2_ad) + FRAME_BEGIN + + cmp $32, %rdx + jb .Lad_out + + /* load the state: */ + vmovdqu (0 * 32)(%rdi), STATE0 + vmovdqu (1 * 32)(%rdi), STATE1 + vmovdqu (2 * 32)(%rdi), STATE2 + vmovdqu (3 * 32)(%rdi), STATE3 + vmovdqu (4 * 32)(%rdi), STATE4 + + mov %rsi, %r8 + and $0x1F, %r8 + jnz .Lad_u_loop + +.align 4 +.Lad_a_loop: + vmovdqa (%rsi), MSG + call __morus1280_update + sub $32, %rdx + add $32, %rsi + cmp $32, %rdx + jge .Lad_a_loop + + jmp .Lad_cont +.align 4 +.Lad_u_loop: + vmovdqu (%rsi), MSG + call __morus1280_update + sub $32, %rdx + add $32, %rsi + cmp $32, %rdx + jge .Lad_u_loop + +.Lad_cont: + /* store the state: */ + vmovdqu STATE0, (0 * 32)(%rdi) + vmovdqu STATE1, (1 * 32)(%rdi) + vmovdqu STATE2, (2 * 32)(%rdi) + vmovdqu STATE3, (3 * 32)(%rdi) + vmovdqu STATE4, (4 * 32)(%rdi) + +.Lad_out: + FRAME_END + ret +ENDPROC(crypto_morus1280_avx2_ad) + +/* + * void crypto_morus1280_avx2_enc(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus1280_avx2_enc) + FRAME_BEGIN + + cmp $32, %rcx + jb .Lenc_out + + /* load the state: */ + vmovdqu (0 * 32)(%rdi), STATE0 + vmovdqu (1 * 32)(%rdi), STATE1 + vmovdqu (2 * 32)(%rdi), STATE2 + vmovdqu (3 * 32)(%rdi), STATE3 + vmovdqu (4 * 32)(%rdi), STATE4 + + mov %rsi, %r8 + or %rdx, %r8 + and $0x1F, %r8 + jnz .Lenc_u_loop + +.align 4 +.Lenc_a_loop: + vmovdqa (%rsi), MSG + vmovdqa MSG, T0 + vpxor STATE0, T0, T0 + vpermq $MASK3, STATE1, T1 + vpxor T1, T0, T0 + vpand STATE2, STATE3, T1 + vpxor T1, T0, T0 + vmovdqa T0, (%rdx) + + call __morus1280_update + sub $32, %rcx + add $32, %rsi + add $32, %rdx + cmp $32, %rcx + jge .Lenc_a_loop + + jmp .Lenc_cont +.align 4 +.Lenc_u_loop: + vmovdqu (%rsi), MSG + vmovdqa MSG, T0 + vpxor STATE0, T0, T0 + vpermq $MASK3, STATE1, T1 + vpxor T1, T0, T0 + vpand STATE2, STATE3, T1 + vpxor T1, T0, T0 + vmovdqu T0, (%rdx) + + call __morus1280_update + sub $32, %rcx + add $32, %rsi + add $32, %rdx + cmp $32, %rcx + jge .Lenc_u_loop + +.Lenc_cont: + /* store the state: */ + vmovdqu STATE0, (0 * 32)(%rdi) + vmovdqu STATE1, (1 * 32)(%rdi) + vmovdqu STATE2, (2 * 32)(%rdi) + vmovdqu STATE3, (3 * 32)(%rdi) + vmovdqu STATE4, (4 * 32)(%rdi) + +.Lenc_out: + FRAME_END + ret +ENDPROC(crypto_morus1280_avx2_enc) + +/* + * void crypto_morus1280_avx2_enc_tail(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus1280_avx2_enc_tail) + FRAME_BEGIN + + /* load the state: */ + vmovdqu (0 * 32)(%rdi), STATE0 + vmovdqu (1 * 32)(%rdi), STATE1 + vmovdqu (2 * 32)(%rdi), STATE2 + vmovdqu (3 * 32)(%rdi), STATE3 + vmovdqu (4 * 32)(%rdi), STATE4 + + /* encrypt message: */ + call __load_partial + + vmovdqa MSG, T0 + vpxor STATE0, T0, T0 + vpermq $MASK3, STATE1, T1 + vpxor T1, T0, T0 + vpand STATE2, STATE3, T1 + vpxor T1, T0, T0 + + call __store_partial + + call __morus1280_update + + /* store the state: */ + vmovdqu STATE0, (0 * 32)(%rdi) + vmovdqu STATE1, (1 * 32)(%rdi) + vmovdqu STATE2, (2 * 32)(%rdi) + vmovdqu STATE3, (3 * 32)(%rdi) + vmovdqu STATE4, (4 * 32)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus1280_avx2_enc_tail) + +/* + * void crypto_morus1280_avx2_dec(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus1280_avx2_dec) + FRAME_BEGIN + + cmp $32, %rcx + jb .Ldec_out + + /* load the state: */ + vmovdqu (0 * 32)(%rdi), STATE0 + vmovdqu (1 * 32)(%rdi), STATE1 + vmovdqu (2 * 32)(%rdi), STATE2 + vmovdqu (3 * 32)(%rdi), STATE3 + vmovdqu (4 * 32)(%rdi), STATE4 + + mov %rsi, %r8 + or %rdx, %r8 + and $0x1F, %r8 + jnz .Ldec_u_loop + +.align 4 +.Ldec_a_loop: + vmovdqa (%rsi), MSG + vpxor STATE0, MSG, MSG + vpermq $MASK3, STATE1, T0 + vpxor T0, MSG, MSG + vpand STATE2, STATE3, T0 + vpxor T0, MSG, MSG + vmovdqa MSG, (%rdx) + + call __morus1280_update + sub $32, %rcx + add $32, %rsi + add $32, %rdx + cmp $32, %rcx + jge .Ldec_a_loop + + jmp .Ldec_cont +.align 4 +.Ldec_u_loop: + vmovdqu (%rsi), MSG + vpxor STATE0, MSG, MSG + vpermq $MASK3, STATE1, T0 + vpxor T0, MSG, MSG + vpand STATE2, STATE3, T0 + vpxor T0, MSG, MSG + vmovdqu MSG, (%rdx) + + call __morus1280_update + sub $32, %rcx + add $32, %rsi + add $32, %rdx + cmp $32, %rcx + jge .Ldec_u_loop + +.Ldec_cont: + /* store the state: */ + vmovdqu STATE0, (0 * 32)(%rdi) + vmovdqu STATE1, (1 * 32)(%rdi) + vmovdqu STATE2, (2 * 32)(%rdi) + vmovdqu STATE3, (3 * 32)(%rdi) + vmovdqu STATE4, (4 * 32)(%rdi) + +.Ldec_out: + FRAME_END + ret +ENDPROC(crypto_morus1280_avx2_dec) + +/* + * void crypto_morus1280_avx2_dec_tail(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus1280_avx2_dec_tail) + FRAME_BEGIN + + /* load the state: */ + vmovdqu (0 * 32)(%rdi), STATE0 + vmovdqu (1 * 32)(%rdi), STATE1 + vmovdqu (2 * 32)(%rdi), STATE2 + vmovdqu (3 * 32)(%rdi), STATE3 + vmovdqu (4 * 32)(%rdi), STATE4 + + /* decrypt message: */ + call __load_partial + + vpxor STATE0, MSG, MSG + vpermq $MASK3, STATE1, T0 + vpxor T0, MSG, MSG + vpand STATE2, STATE3, T0 + vpxor T0, MSG, MSG + vmovdqa MSG, T0 + + call __store_partial + + /* mask with byte count: */ + movq %rcx, T0_LOW + vpbroadcastb T0_LOW, T0 + vmovdqa .Lmorus1280_counter, T1 + vpcmpgtb T1, T0, T0 + vpand T0, MSG, MSG + + call __morus1280_update + + /* store the state: */ + vmovdqu STATE0, (0 * 32)(%rdi) + vmovdqu STATE1, (1 * 32)(%rdi) + vmovdqu STATE2, (2 * 32)(%rdi) + vmovdqu STATE3, (3 * 32)(%rdi) + vmovdqu STATE4, (4 * 32)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus1280_avx2_dec_tail) + +/* + * void crypto_morus1280_avx2_final(void *state, void *tag_xor, + * u64 assoclen, u64 cryptlen); + */ +ENTRY(crypto_morus1280_avx2_final) + FRAME_BEGIN + + /* load the state: */ + vmovdqu (0 * 32)(%rdi), STATE0 + vmovdqu (1 * 32)(%rdi), STATE1 + vmovdqu (2 * 32)(%rdi), STATE2 + vmovdqu (3 * 32)(%rdi), STATE3 + vmovdqu (4 * 32)(%rdi), STATE4 + + /* xor state[0] into state[4]: */ + vpxor STATE0, STATE4, STATE4 + + /* prepare length block: */ + vpxor MSG, MSG, MSG + vpinsrq $0, %rdx, MSG_LOW, MSG_LOW + vpinsrq $1, %rcx, MSG_LOW, MSG_LOW + vpsllq $3, MSG, MSG /* multiply by 8 (to get bit count) */ + + /* update state: */ + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + + /* xor tag: */ + vmovdqu (%rsi), MSG + + vpxor STATE0, MSG, MSG + vpermq $MASK3, STATE1, T0 + vpxor T0, MSG, MSG + vpand STATE2, STATE3, T0 + vpxor T0, MSG, MSG + vmovdqu MSG, (%rsi) + + FRAME_END + ret +ENDPROC(crypto_morus1280_avx2_final) diff --git a/arch/x86/crypto/morus1280-avx2-glue.c b/arch/x86/crypto/morus1280-avx2-glue.c new file mode 100644 index 000000000..6634907d6 --- /dev/null +++ b/arch/x86/crypto/morus1280-avx2-glue.c @@ -0,0 +1,64 @@ +/* + * The MORUS-1280 Authenticated-Encryption Algorithm + * Glue for AVX2 implementation + * + * Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <crypto/internal/aead.h> +#include <crypto/morus1280_glue.h> +#include <linux/module.h> +#include <asm/fpu/api.h> +#include <asm/cpu_device_id.h> + +asmlinkage void crypto_morus1280_avx2_init(void *state, const void *key, + const void *iv); +asmlinkage void crypto_morus1280_avx2_ad(void *state, const void *data, + unsigned int length); + +asmlinkage void crypto_morus1280_avx2_enc(void *state, const void *src, + void *dst, unsigned int length); +asmlinkage void crypto_morus1280_avx2_dec(void *state, const void *src, + void *dst, unsigned int length); + +asmlinkage void crypto_morus1280_avx2_enc_tail(void *state, const void *src, + void *dst, unsigned int length); +asmlinkage void crypto_morus1280_avx2_dec_tail(void *state, const void *src, + void *dst, unsigned int length); + +asmlinkage void crypto_morus1280_avx2_final(void *state, void *tag_xor, + u64 assoclen, u64 cryptlen); + +MORUS1280_DECLARE_ALGS(avx2, "morus1280-avx2", 400); + +static int __init crypto_morus1280_avx2_module_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_AVX2) || + !boot_cpu_has(X86_FEATURE_OSXSAVE) || + !cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) + return -ENODEV; + + return crypto_register_aeads(crypto_morus1280_avx2_algs, + ARRAY_SIZE(crypto_morus1280_avx2_algs)); +} + +static void __exit crypto_morus1280_avx2_module_exit(void) +{ + crypto_unregister_aeads(crypto_morus1280_avx2_algs, + ARRAY_SIZE(crypto_morus1280_avx2_algs)); +} + +module_init(crypto_morus1280_avx2_module_init); +module_exit(crypto_morus1280_avx2_module_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); +MODULE_DESCRIPTION("MORUS-1280 AEAD algorithm -- AVX2 implementation"); +MODULE_ALIAS_CRYPTO("morus1280"); +MODULE_ALIAS_CRYPTO("morus1280-avx2"); diff --git a/arch/x86/crypto/morus1280-sse2-asm.S b/arch/x86/crypto/morus1280-sse2-asm.S new file mode 100644 index 000000000..da5d2905d --- /dev/null +++ b/arch/x86/crypto/morus1280-sse2-asm.S @@ -0,0 +1,896 @@ +/* + * SSE2 implementation of MORUS-1280 + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> + +#define SHUFFLE_MASK(i0, i1, i2, i3) \ + (i0 | (i1 << 2) | (i2 << 4) | (i3 << 6)) + +#define MASK2 SHUFFLE_MASK(2, 3, 0, 1) + +#define STATE0_LO %xmm0 +#define STATE0_HI %xmm1 +#define STATE1_LO %xmm2 +#define STATE1_HI %xmm3 +#define STATE2_LO %xmm4 +#define STATE2_HI %xmm5 +#define STATE3_LO %xmm6 +#define STATE3_HI %xmm7 +#define STATE4_LO %xmm8 +#define STATE4_HI %xmm9 +#define KEY_LO %xmm10 +#define KEY_HI %xmm11 +#define MSG_LO %xmm10 +#define MSG_HI %xmm11 +#define T0_LO %xmm12 +#define T0_HI %xmm13 +#define T1_LO %xmm14 +#define T1_HI %xmm15 + +.section .rodata.cst16.morus640_const, "aM", @progbits, 16 +.align 16 +.Lmorus640_const_0: + .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d + .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 +.Lmorus640_const_1: + .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 + .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd + +.section .rodata.cst16.morus640_counter, "aM", @progbits, 16 +.align 16 +.Lmorus640_counter_0: + .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 + .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f +.Lmorus640_counter_1: + .byte 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 + .byte 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f + +.text + +.macro rol1 hi, lo + /* + * HI_1 | HI_0 || LO_1 | LO_0 + * ==> + * HI_0 | HI_1 || LO_1 | LO_0 + * ==> + * HI_0 | LO_1 || LO_0 | HI_1 + */ + pshufd $MASK2, \hi, \hi + movdqa \hi, T0_LO + punpcklqdq \lo, T0_LO + punpckhqdq \hi, \lo + movdqa \lo, \hi + movdqa T0_LO, \lo +.endm + +.macro rol2 hi, lo + movdqa \lo, T0_LO + movdqa \hi, \lo + movdqa T0_LO, \hi +.endm + +.macro rol3 hi, lo + /* + * HI_1 | HI_0 || LO_1 | LO_0 + * ==> + * HI_0 | HI_1 || LO_1 | LO_0 + * ==> + * LO_0 | HI_1 || HI_0 | LO_1 + */ + pshufd $MASK2, \hi, \hi + movdqa \lo, T0_LO + punpckhqdq \hi, T0_LO + punpcklqdq \lo, \hi + movdqa T0_LO, \lo +.endm + +.macro morus1280_round s0_l, s0_h, s1_l, s1_h, s2_l, s2_h, s3_l, s3_h, s4_l, s4_h, b, w + movdqa \s1_l, T0_LO + pand \s2_l, T0_LO + pxor T0_LO, \s0_l + + movdqa \s1_h, T0_LO + pand \s2_h, T0_LO + pxor T0_LO, \s0_h + + pxor \s3_l, \s0_l + pxor \s3_h, \s0_h + + movdqa \s0_l, T0_LO + psllq $\b, T0_LO + psrlq $(64 - \b), \s0_l + pxor T0_LO, \s0_l + + movdqa \s0_h, T0_LO + psllq $\b, T0_LO + psrlq $(64 - \b), \s0_h + pxor T0_LO, \s0_h + + \w \s3_h, \s3_l +.endm + +/* + * __morus1280_update: internal ABI + * input: + * STATE[0-4] - input state + * MSG - message block + * output: + * STATE[0-4] - output state + * changed: + * T0 + */ +__morus1280_update: + morus1280_round \ + STATE0_LO, STATE0_HI, \ + STATE1_LO, STATE1_HI, \ + STATE2_LO, STATE2_HI, \ + STATE3_LO, STATE3_HI, \ + STATE4_LO, STATE4_HI, \ + 13, rol1 + pxor MSG_LO, STATE1_LO + pxor MSG_HI, STATE1_HI + morus1280_round \ + STATE1_LO, STATE1_HI, \ + STATE2_LO, STATE2_HI, \ + STATE3_LO, STATE3_HI, \ + STATE4_LO, STATE4_HI, \ + STATE0_LO, STATE0_HI, \ + 46, rol2 + pxor MSG_LO, STATE2_LO + pxor MSG_HI, STATE2_HI + morus1280_round \ + STATE2_LO, STATE2_HI, \ + STATE3_LO, STATE3_HI, \ + STATE4_LO, STATE4_HI, \ + STATE0_LO, STATE0_HI, \ + STATE1_LO, STATE1_HI, \ + 38, rol3 + pxor MSG_LO, STATE3_LO + pxor MSG_HI, STATE3_HI + morus1280_round \ + STATE3_LO, STATE3_HI, \ + STATE4_LO, STATE4_HI, \ + STATE0_LO, STATE0_HI, \ + STATE1_LO, STATE1_HI, \ + STATE2_LO, STATE2_HI, \ + 7, rol2 + pxor MSG_LO, STATE4_LO + pxor MSG_HI, STATE4_HI + morus1280_round \ + STATE4_LO, STATE4_HI, \ + STATE0_LO, STATE0_HI, \ + STATE1_LO, STATE1_HI, \ + STATE2_LO, STATE2_HI, \ + STATE3_LO, STATE3_HI, \ + 4, rol1 + ret +ENDPROC(__morus1280_update) + +/* + * __morus1280_update_zero: internal ABI + * input: + * STATE[0-4] - input state + * output: + * STATE[0-4] - output state + * changed: + * T0 + */ +__morus1280_update_zero: + morus1280_round \ + STATE0_LO, STATE0_HI, \ + STATE1_LO, STATE1_HI, \ + STATE2_LO, STATE2_HI, \ + STATE3_LO, STATE3_HI, \ + STATE4_LO, STATE4_HI, \ + 13, rol1 + morus1280_round \ + STATE1_LO, STATE1_HI, \ + STATE2_LO, STATE2_HI, \ + STATE3_LO, STATE3_HI, \ + STATE4_LO, STATE4_HI, \ + STATE0_LO, STATE0_HI, \ + 46, rol2 + morus1280_round \ + STATE2_LO, STATE2_HI, \ + STATE3_LO, STATE3_HI, \ + STATE4_LO, STATE4_HI, \ + STATE0_LO, STATE0_HI, \ + STATE1_LO, STATE1_HI, \ + 38, rol3 + morus1280_round \ + STATE3_LO, STATE3_HI, \ + STATE4_LO, STATE4_HI, \ + STATE0_LO, STATE0_HI, \ + STATE1_LO, STATE1_HI, \ + STATE2_LO, STATE2_HI, \ + 7, rol2 + morus1280_round \ + STATE4_LO, STATE4_HI, \ + STATE0_LO, STATE0_HI, \ + STATE1_LO, STATE1_HI, \ + STATE2_LO, STATE2_HI, \ + STATE3_LO, STATE3_HI, \ + 4, rol1 + ret +ENDPROC(__morus1280_update_zero) + +/* + * __load_partial: internal ABI + * input: + * %rsi - src + * %rcx - bytes + * output: + * MSG - message block + * changed: + * %r8 + * %r9 + */ +__load_partial: + xor %r9d, %r9d + pxor MSG_LO, MSG_LO + pxor MSG_HI, MSG_HI + + mov %rcx, %r8 + and $0x1, %r8 + jz .Lld_partial_1 + + mov %rcx, %r8 + and $0x1E, %r8 + add %rsi, %r8 + mov (%r8), %r9b + +.Lld_partial_1: + mov %rcx, %r8 + and $0x2, %r8 + jz .Lld_partial_2 + + mov %rcx, %r8 + and $0x1C, %r8 + add %rsi, %r8 + shl $16, %r9 + mov (%r8), %r9w + +.Lld_partial_2: + mov %rcx, %r8 + and $0x4, %r8 + jz .Lld_partial_4 + + mov %rcx, %r8 + and $0x18, %r8 + add %rsi, %r8 + shl $32, %r9 + mov (%r8), %r8d + xor %r8, %r9 + +.Lld_partial_4: + movq %r9, MSG_LO + + mov %rcx, %r8 + and $0x8, %r8 + jz .Lld_partial_8 + + mov %rcx, %r8 + and $0x10, %r8 + add %rsi, %r8 + pslldq $8, MSG_LO + movq (%r8), T0_LO + pxor T0_LO, MSG_LO + +.Lld_partial_8: + mov %rcx, %r8 + and $0x10, %r8 + jz .Lld_partial_16 + + movdqa MSG_LO, MSG_HI + movdqu (%rsi), MSG_LO + +.Lld_partial_16: + ret +ENDPROC(__load_partial) + +/* + * __store_partial: internal ABI + * input: + * %rdx - dst + * %rcx - bytes + * output: + * T0 - message block + * changed: + * %r8 + * %r9 + * %r10 + */ +__store_partial: + mov %rcx, %r8 + mov %rdx, %r9 + + cmp $16, %r8 + jl .Lst_partial_16 + + movdqu T0_LO, (%r9) + movdqa T0_HI, T0_LO + + sub $16, %r8 + add $16, %r9 + +.Lst_partial_16: + movq T0_LO, %r10 + + cmp $8, %r8 + jl .Lst_partial_8 + + mov %r10, (%r9) + psrldq $8, T0_LO + movq T0_LO, %r10 + + sub $8, %r8 + add $8, %r9 + +.Lst_partial_8: + cmp $4, %r8 + jl .Lst_partial_4 + + mov %r10d, (%r9) + shr $32, %r10 + + sub $4, %r8 + add $4, %r9 + +.Lst_partial_4: + cmp $2, %r8 + jl .Lst_partial_2 + + mov %r10w, (%r9) + shr $16, %r10 + + sub $2, %r8 + add $2, %r9 + +.Lst_partial_2: + cmp $1, %r8 + jl .Lst_partial_1 + + mov %r10b, (%r9) + +.Lst_partial_1: + ret +ENDPROC(__store_partial) + +/* + * void crypto_morus1280_sse2_init(void *state, const void *key, + * const void *iv); + */ +ENTRY(crypto_morus1280_sse2_init) + FRAME_BEGIN + + /* load IV: */ + pxor STATE0_HI, STATE0_HI + movdqu (%rdx), STATE0_LO + /* load key: */ + movdqu 0(%rsi), KEY_LO + movdqu 16(%rsi), KEY_HI + movdqa KEY_LO, STATE1_LO + movdqa KEY_HI, STATE1_HI + /* load all ones: */ + pcmpeqd STATE2_LO, STATE2_LO + pcmpeqd STATE2_HI, STATE2_HI + /* load all zeros: */ + pxor STATE3_LO, STATE3_LO + pxor STATE3_HI, STATE3_HI + /* load the constant: */ + movdqa .Lmorus640_const_0, STATE4_LO + movdqa .Lmorus640_const_1, STATE4_HI + + /* update 16 times with zero: */ + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + call __morus1280_update_zero + + /* xor-in the key again after updates: */ + pxor KEY_LO, STATE1_LO + pxor KEY_HI, STATE1_HI + + /* store the state: */ + movdqu STATE0_LO, (0 * 16)(%rdi) + movdqu STATE0_HI, (1 * 16)(%rdi) + movdqu STATE1_LO, (2 * 16)(%rdi) + movdqu STATE1_HI, (3 * 16)(%rdi) + movdqu STATE2_LO, (4 * 16)(%rdi) + movdqu STATE2_HI, (5 * 16)(%rdi) + movdqu STATE3_LO, (6 * 16)(%rdi) + movdqu STATE3_HI, (7 * 16)(%rdi) + movdqu STATE4_LO, (8 * 16)(%rdi) + movdqu STATE4_HI, (9 * 16)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus1280_sse2_init) + +/* + * void crypto_morus1280_sse2_ad(void *state, const void *data, + * unsigned int length); + */ +ENTRY(crypto_morus1280_sse2_ad) + FRAME_BEGIN + + cmp $32, %rdx + jb .Lad_out + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0_LO + movdqu (1 * 16)(%rdi), STATE0_HI + movdqu (2 * 16)(%rdi), STATE1_LO + movdqu (3 * 16)(%rdi), STATE1_HI + movdqu (4 * 16)(%rdi), STATE2_LO + movdqu (5 * 16)(%rdi), STATE2_HI + movdqu (6 * 16)(%rdi), STATE3_LO + movdqu (7 * 16)(%rdi), STATE3_HI + movdqu (8 * 16)(%rdi), STATE4_LO + movdqu (9 * 16)(%rdi), STATE4_HI + + mov %rsi, %r8 + and $0xF, %r8 + jnz .Lad_u_loop + +.align 4 +.Lad_a_loop: + movdqa 0(%rsi), MSG_LO + movdqa 16(%rsi), MSG_HI + call __morus1280_update + sub $32, %rdx + add $32, %rsi + cmp $32, %rdx + jge .Lad_a_loop + + jmp .Lad_cont +.align 4 +.Lad_u_loop: + movdqu 0(%rsi), MSG_LO + movdqu 16(%rsi), MSG_HI + call __morus1280_update + sub $32, %rdx + add $32, %rsi + cmp $32, %rdx + jge .Lad_u_loop + +.Lad_cont: + /* store the state: */ + movdqu STATE0_LO, (0 * 16)(%rdi) + movdqu STATE0_HI, (1 * 16)(%rdi) + movdqu STATE1_LO, (2 * 16)(%rdi) + movdqu STATE1_HI, (3 * 16)(%rdi) + movdqu STATE2_LO, (4 * 16)(%rdi) + movdqu STATE2_HI, (5 * 16)(%rdi) + movdqu STATE3_LO, (6 * 16)(%rdi) + movdqu STATE3_HI, (7 * 16)(%rdi) + movdqu STATE4_LO, (8 * 16)(%rdi) + movdqu STATE4_HI, (9 * 16)(%rdi) + +.Lad_out: + FRAME_END + ret +ENDPROC(crypto_morus1280_sse2_ad) + +/* + * void crypto_morus1280_sse2_enc(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus1280_sse2_enc) + FRAME_BEGIN + + cmp $32, %rcx + jb .Lenc_out + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0_LO + movdqu (1 * 16)(%rdi), STATE0_HI + movdqu (2 * 16)(%rdi), STATE1_LO + movdqu (3 * 16)(%rdi), STATE1_HI + movdqu (4 * 16)(%rdi), STATE2_LO + movdqu (5 * 16)(%rdi), STATE2_HI + movdqu (6 * 16)(%rdi), STATE3_LO + movdqu (7 * 16)(%rdi), STATE3_HI + movdqu (8 * 16)(%rdi), STATE4_LO + movdqu (9 * 16)(%rdi), STATE4_HI + + mov %rsi, %r8 + or %rdx, %r8 + and $0xF, %r8 + jnz .Lenc_u_loop + +.align 4 +.Lenc_a_loop: + movdqa 0(%rsi), MSG_LO + movdqa 16(%rsi), MSG_HI + movdqa STATE1_LO, T1_LO + movdqa STATE1_HI, T1_HI + rol3 T1_HI, T1_LO + movdqa MSG_LO, T0_LO + movdqa MSG_HI, T0_HI + pxor T1_LO, T0_LO + pxor T1_HI, T0_HI + pxor STATE0_LO, T0_LO + pxor STATE0_HI, T0_HI + movdqa STATE2_LO, T1_LO + movdqa STATE2_HI, T1_HI + pand STATE3_LO, T1_LO + pand STATE3_HI, T1_HI + pxor T1_LO, T0_LO + pxor T1_HI, T0_HI + movdqa T0_LO, 0(%rdx) + movdqa T0_HI, 16(%rdx) + + call __morus1280_update + sub $32, %rcx + add $32, %rsi + add $32, %rdx + cmp $32, %rcx + jge .Lenc_a_loop + + jmp .Lenc_cont +.align 4 +.Lenc_u_loop: + movdqu 0(%rsi), MSG_LO + movdqu 16(%rsi), MSG_HI + movdqa STATE1_LO, T1_LO + movdqa STATE1_HI, T1_HI + rol3 T1_HI, T1_LO + movdqa MSG_LO, T0_LO + movdqa MSG_HI, T0_HI + pxor T1_LO, T0_LO + pxor T1_HI, T0_HI + pxor STATE0_LO, T0_LO + pxor STATE0_HI, T0_HI + movdqa STATE2_LO, T1_LO + movdqa STATE2_HI, T1_HI + pand STATE3_LO, T1_LO + pand STATE3_HI, T1_HI + pxor T1_LO, T0_LO + pxor T1_HI, T0_HI + movdqu T0_LO, 0(%rdx) + movdqu T0_HI, 16(%rdx) + + call __morus1280_update + sub $32, %rcx + add $32, %rsi + add $32, %rdx + cmp $32, %rcx + jge .Lenc_u_loop + +.Lenc_cont: + /* store the state: */ + movdqu STATE0_LO, (0 * 16)(%rdi) + movdqu STATE0_HI, (1 * 16)(%rdi) + movdqu STATE1_LO, (2 * 16)(%rdi) + movdqu STATE1_HI, (3 * 16)(%rdi) + movdqu STATE2_LO, (4 * 16)(%rdi) + movdqu STATE2_HI, (5 * 16)(%rdi) + movdqu STATE3_LO, (6 * 16)(%rdi) + movdqu STATE3_HI, (7 * 16)(%rdi) + movdqu STATE4_LO, (8 * 16)(%rdi) + movdqu STATE4_HI, (9 * 16)(%rdi) + +.Lenc_out: + FRAME_END + ret +ENDPROC(crypto_morus1280_sse2_enc) + +/* + * void crypto_morus1280_sse2_enc_tail(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus1280_sse2_enc_tail) + FRAME_BEGIN + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0_LO + movdqu (1 * 16)(%rdi), STATE0_HI + movdqu (2 * 16)(%rdi), STATE1_LO + movdqu (3 * 16)(%rdi), STATE1_HI + movdqu (4 * 16)(%rdi), STATE2_LO + movdqu (5 * 16)(%rdi), STATE2_HI + movdqu (6 * 16)(%rdi), STATE3_LO + movdqu (7 * 16)(%rdi), STATE3_HI + movdqu (8 * 16)(%rdi), STATE4_LO + movdqu (9 * 16)(%rdi), STATE4_HI + + /* encrypt message: */ + call __load_partial + + movdqa STATE1_LO, T1_LO + movdqa STATE1_HI, T1_HI + rol3 T1_HI, T1_LO + movdqa MSG_LO, T0_LO + movdqa MSG_HI, T0_HI + pxor T1_LO, T0_LO + pxor T1_HI, T0_HI + pxor STATE0_LO, T0_LO + pxor STATE0_HI, T0_HI + movdqa STATE2_LO, T1_LO + movdqa STATE2_HI, T1_HI + pand STATE3_LO, T1_LO + pand STATE3_HI, T1_HI + pxor T1_LO, T0_LO + pxor T1_HI, T0_HI + + call __store_partial + + call __morus1280_update + + /* store the state: */ + movdqu STATE0_LO, (0 * 16)(%rdi) + movdqu STATE0_HI, (1 * 16)(%rdi) + movdqu STATE1_LO, (2 * 16)(%rdi) + movdqu STATE1_HI, (3 * 16)(%rdi) + movdqu STATE2_LO, (4 * 16)(%rdi) + movdqu STATE2_HI, (5 * 16)(%rdi) + movdqu STATE3_LO, (6 * 16)(%rdi) + movdqu STATE3_HI, (7 * 16)(%rdi) + movdqu STATE4_LO, (8 * 16)(%rdi) + movdqu STATE4_HI, (9 * 16)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus1280_sse2_enc_tail) + +/* + * void crypto_morus1280_sse2_dec(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus1280_sse2_dec) + FRAME_BEGIN + + cmp $32, %rcx + jb .Ldec_out + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0_LO + movdqu (1 * 16)(%rdi), STATE0_HI + movdqu (2 * 16)(%rdi), STATE1_LO + movdqu (3 * 16)(%rdi), STATE1_HI + movdqu (4 * 16)(%rdi), STATE2_LO + movdqu (5 * 16)(%rdi), STATE2_HI + movdqu (6 * 16)(%rdi), STATE3_LO + movdqu (7 * 16)(%rdi), STATE3_HI + movdqu (8 * 16)(%rdi), STATE4_LO + movdqu (9 * 16)(%rdi), STATE4_HI + + mov %rsi, %r8 + or %rdx, %r8 + and $0xF, %r8 + jnz .Ldec_u_loop + +.align 4 +.Ldec_a_loop: + movdqa 0(%rsi), MSG_LO + movdqa 16(%rsi), MSG_HI + pxor STATE0_LO, MSG_LO + pxor STATE0_HI, MSG_HI + movdqa STATE1_LO, T1_LO + movdqa STATE1_HI, T1_HI + rol3 T1_HI, T1_LO + pxor T1_LO, MSG_LO + pxor T1_HI, MSG_HI + movdqa STATE2_LO, T1_LO + movdqa STATE2_HI, T1_HI + pand STATE3_LO, T1_LO + pand STATE3_HI, T1_HI + pxor T1_LO, MSG_LO + pxor T1_HI, MSG_HI + movdqa MSG_LO, 0(%rdx) + movdqa MSG_HI, 16(%rdx) + + call __morus1280_update + sub $32, %rcx + add $32, %rsi + add $32, %rdx + cmp $32, %rcx + jge .Ldec_a_loop + + jmp .Ldec_cont +.align 4 +.Ldec_u_loop: + movdqu 0(%rsi), MSG_LO + movdqu 16(%rsi), MSG_HI + pxor STATE0_LO, MSG_LO + pxor STATE0_HI, MSG_HI + movdqa STATE1_LO, T1_LO + movdqa STATE1_HI, T1_HI + rol3 T1_HI, T1_LO + pxor T1_LO, MSG_LO + pxor T1_HI, MSG_HI + movdqa STATE2_LO, T1_LO + movdqa STATE2_HI, T1_HI + pand STATE3_LO, T1_LO + pand STATE3_HI, T1_HI + pxor T1_LO, MSG_LO + pxor T1_HI, MSG_HI + movdqu MSG_LO, 0(%rdx) + movdqu MSG_HI, 16(%rdx) + + call __morus1280_update + sub $32, %rcx + add $32, %rsi + add $32, %rdx + cmp $32, %rcx + jge .Ldec_u_loop + +.Ldec_cont: + /* store the state: */ + movdqu STATE0_LO, (0 * 16)(%rdi) + movdqu STATE0_HI, (1 * 16)(%rdi) + movdqu STATE1_LO, (2 * 16)(%rdi) + movdqu STATE1_HI, (3 * 16)(%rdi) + movdqu STATE2_LO, (4 * 16)(%rdi) + movdqu STATE2_HI, (5 * 16)(%rdi) + movdqu STATE3_LO, (6 * 16)(%rdi) + movdqu STATE3_HI, (7 * 16)(%rdi) + movdqu STATE4_LO, (8 * 16)(%rdi) + movdqu STATE4_HI, (9 * 16)(%rdi) + +.Ldec_out: + FRAME_END + ret +ENDPROC(crypto_morus1280_sse2_dec) + +/* + * void crypto_morus1280_sse2_dec_tail(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus1280_sse2_dec_tail) + FRAME_BEGIN + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0_LO + movdqu (1 * 16)(%rdi), STATE0_HI + movdqu (2 * 16)(%rdi), STATE1_LO + movdqu (3 * 16)(%rdi), STATE1_HI + movdqu (4 * 16)(%rdi), STATE2_LO + movdqu (5 * 16)(%rdi), STATE2_HI + movdqu (6 * 16)(%rdi), STATE3_LO + movdqu (7 * 16)(%rdi), STATE3_HI + movdqu (8 * 16)(%rdi), STATE4_LO + movdqu (9 * 16)(%rdi), STATE4_HI + + /* decrypt message: */ + call __load_partial + + pxor STATE0_LO, MSG_LO + pxor STATE0_HI, MSG_HI + movdqa STATE1_LO, T1_LO + movdqa STATE1_HI, T1_HI + rol3 T1_HI, T1_LO + pxor T1_LO, MSG_LO + pxor T1_HI, MSG_HI + movdqa STATE2_LO, T1_LO + movdqa STATE2_HI, T1_HI + pand STATE3_LO, T1_LO + pand STATE3_HI, T1_HI + pxor T1_LO, MSG_LO + pxor T1_HI, MSG_HI + movdqa MSG_LO, T0_LO + movdqa MSG_HI, T0_HI + + call __store_partial + + /* mask with byte count: */ + movq %rcx, T0_LO + punpcklbw T0_LO, T0_LO + punpcklbw T0_LO, T0_LO + punpcklbw T0_LO, T0_LO + punpcklbw T0_LO, T0_LO + movdqa T0_LO, T0_HI + movdqa .Lmorus640_counter_0, T1_LO + movdqa .Lmorus640_counter_1, T1_HI + pcmpgtb T1_LO, T0_LO + pcmpgtb T1_HI, T0_HI + pand T0_LO, MSG_LO + pand T0_HI, MSG_HI + + call __morus1280_update + + /* store the state: */ + movdqu STATE0_LO, (0 * 16)(%rdi) + movdqu STATE0_HI, (1 * 16)(%rdi) + movdqu STATE1_LO, (2 * 16)(%rdi) + movdqu STATE1_HI, (3 * 16)(%rdi) + movdqu STATE2_LO, (4 * 16)(%rdi) + movdqu STATE2_HI, (5 * 16)(%rdi) + movdqu STATE3_LO, (6 * 16)(%rdi) + movdqu STATE3_HI, (7 * 16)(%rdi) + movdqu STATE4_LO, (8 * 16)(%rdi) + movdqu STATE4_HI, (9 * 16)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus1280_sse2_dec_tail) + +/* + * void crypto_morus1280_sse2_final(void *state, void *tag_xor, + * u64 assoclen, u64 cryptlen); + */ +ENTRY(crypto_morus1280_sse2_final) + FRAME_BEGIN + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0_LO + movdqu (1 * 16)(%rdi), STATE0_HI + movdqu (2 * 16)(%rdi), STATE1_LO + movdqu (3 * 16)(%rdi), STATE1_HI + movdqu (4 * 16)(%rdi), STATE2_LO + movdqu (5 * 16)(%rdi), STATE2_HI + movdqu (6 * 16)(%rdi), STATE3_LO + movdqu (7 * 16)(%rdi), STATE3_HI + movdqu (8 * 16)(%rdi), STATE4_LO + movdqu (9 * 16)(%rdi), STATE4_HI + + /* xor state[0] into state[4]: */ + pxor STATE0_LO, STATE4_LO + pxor STATE0_HI, STATE4_HI + + /* prepare length block: */ + movq %rdx, MSG_LO + movq %rcx, T0_LO + pslldq $8, T0_LO + pxor T0_LO, MSG_LO + psllq $3, MSG_LO /* multiply by 8 (to get bit count) */ + pxor MSG_HI, MSG_HI + + /* update state: */ + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + call __morus1280_update + + /* xor tag: */ + movdqu 0(%rsi), MSG_LO + movdqu 16(%rsi), MSG_HI + + pxor STATE0_LO, MSG_LO + pxor STATE0_HI, MSG_HI + movdqa STATE1_LO, T0_LO + movdqa STATE1_HI, T0_HI + rol3 T0_HI, T0_LO + pxor T0_LO, MSG_LO + pxor T0_HI, MSG_HI + movdqa STATE2_LO, T0_LO + movdqa STATE2_HI, T0_HI + pand STATE3_LO, T0_LO + pand STATE3_HI, T0_HI + pxor T0_LO, MSG_LO + pxor T0_HI, MSG_HI + + movdqu MSG_LO, 0(%rsi) + movdqu MSG_HI, 16(%rsi) + + FRAME_END + ret +ENDPROC(crypto_morus1280_sse2_final) diff --git a/arch/x86/crypto/morus1280-sse2-glue.c b/arch/x86/crypto/morus1280-sse2-glue.c new file mode 100644 index 000000000..f40244eaf --- /dev/null +++ b/arch/x86/crypto/morus1280-sse2-glue.c @@ -0,0 +1,63 @@ +/* + * The MORUS-1280 Authenticated-Encryption Algorithm + * Glue for SSE2 implementation + * + * Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <crypto/internal/aead.h> +#include <crypto/morus1280_glue.h> +#include <linux/module.h> +#include <asm/fpu/api.h> +#include <asm/cpu_device_id.h> + +asmlinkage void crypto_morus1280_sse2_init(void *state, const void *key, + const void *iv); +asmlinkage void crypto_morus1280_sse2_ad(void *state, const void *data, + unsigned int length); + +asmlinkage void crypto_morus1280_sse2_enc(void *state, const void *src, + void *dst, unsigned int length); +asmlinkage void crypto_morus1280_sse2_dec(void *state, const void *src, + void *dst, unsigned int length); + +asmlinkage void crypto_morus1280_sse2_enc_tail(void *state, const void *src, + void *dst, unsigned int length); +asmlinkage void crypto_morus1280_sse2_dec_tail(void *state, const void *src, + void *dst, unsigned int length); + +asmlinkage void crypto_morus1280_sse2_final(void *state, void *tag_xor, + u64 assoclen, u64 cryptlen); + +MORUS1280_DECLARE_ALGS(sse2, "morus1280-sse2", 350); + +static int __init crypto_morus1280_sse2_module_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_XMM2) || + !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) + return -ENODEV; + + return crypto_register_aeads(crypto_morus1280_sse2_algs, + ARRAY_SIZE(crypto_morus1280_sse2_algs)); +} + +static void __exit crypto_morus1280_sse2_module_exit(void) +{ + crypto_unregister_aeads(crypto_morus1280_sse2_algs, + ARRAY_SIZE(crypto_morus1280_sse2_algs)); +} + +module_init(crypto_morus1280_sse2_module_init); +module_exit(crypto_morus1280_sse2_module_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); +MODULE_DESCRIPTION("MORUS-1280 AEAD algorithm -- SSE2 implementation"); +MODULE_ALIAS_CRYPTO("morus1280"); +MODULE_ALIAS_CRYPTO("morus1280-sse2"); diff --git a/arch/x86/crypto/morus1280_glue.c b/arch/x86/crypto/morus1280_glue.c new file mode 100644 index 000000000..7e600f8bc --- /dev/null +++ b/arch/x86/crypto/morus1280_glue.c @@ -0,0 +1,294 @@ +/* + * The MORUS-1280 Authenticated-Encryption Algorithm + * Common x86 SIMD glue skeleton + * + * Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <crypto/cryptd.h> +#include <crypto/internal/aead.h> +#include <crypto/internal/skcipher.h> +#include <crypto/morus1280_glue.h> +#include <crypto/scatterwalk.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/scatterlist.h> +#include <asm/fpu/api.h> + +struct morus1280_state { + struct morus1280_block s[MORUS_STATE_BLOCKS]; +}; + +struct morus1280_ops { + int (*skcipher_walk_init)(struct skcipher_walk *walk, + struct aead_request *req, bool atomic); + + void (*crypt_blocks)(void *state, const void *src, void *dst, + unsigned int length); + void (*crypt_tail)(void *state, const void *src, void *dst, + unsigned int length); +}; + +static void crypto_morus1280_glue_process_ad( + struct morus1280_state *state, + const struct morus1280_glue_ops *ops, + struct scatterlist *sg_src, unsigned int assoclen) +{ + struct scatter_walk walk; + struct morus1280_block buf; + unsigned int pos = 0; + + scatterwalk_start(&walk, sg_src); + while (assoclen != 0) { + unsigned int size = scatterwalk_clamp(&walk, assoclen); + unsigned int left = size; + void *mapped = scatterwalk_map(&walk); + const u8 *src = (const u8 *)mapped; + + if (pos + size >= MORUS1280_BLOCK_SIZE) { + if (pos > 0) { + unsigned int fill = MORUS1280_BLOCK_SIZE - pos; + memcpy(buf.bytes + pos, src, fill); + ops->ad(state, buf.bytes, MORUS1280_BLOCK_SIZE); + pos = 0; + left -= fill; + src += fill; + } + + ops->ad(state, src, left); + src += left & ~(MORUS1280_BLOCK_SIZE - 1); + left &= MORUS1280_BLOCK_SIZE - 1; + } + + memcpy(buf.bytes + pos, src, left); + + pos += left; + assoclen -= size; + scatterwalk_unmap(mapped); + scatterwalk_advance(&walk, size); + scatterwalk_done(&walk, 0, assoclen); + } + + if (pos > 0) { + memset(buf.bytes + pos, 0, MORUS1280_BLOCK_SIZE - pos); + ops->ad(state, buf.bytes, MORUS1280_BLOCK_SIZE); + } +} + +static void crypto_morus1280_glue_process_crypt(struct morus1280_state *state, + struct morus1280_ops ops, + struct skcipher_walk *walk) +{ + while (walk->nbytes >= MORUS1280_BLOCK_SIZE) { + ops.crypt_blocks(state, walk->src.virt.addr, + walk->dst.virt.addr, + round_down(walk->nbytes, + MORUS1280_BLOCK_SIZE)); + skcipher_walk_done(walk, walk->nbytes % MORUS1280_BLOCK_SIZE); + } + + if (walk->nbytes) { + ops.crypt_tail(state, walk->src.virt.addr, walk->dst.virt.addr, + walk->nbytes); + skcipher_walk_done(walk, 0); + } +} + +int crypto_morus1280_glue_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct morus1280_ctx *ctx = crypto_aead_ctx(aead); + + if (keylen == MORUS1280_BLOCK_SIZE) { + memcpy(ctx->key.bytes, key, MORUS1280_BLOCK_SIZE); + } else if (keylen == MORUS1280_BLOCK_SIZE / 2) { + memcpy(ctx->key.bytes, key, keylen); + memcpy(ctx->key.bytes + keylen, key, keylen); + } else { + crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL_GPL(crypto_morus1280_glue_setkey); + +int crypto_morus1280_glue_setauthsize(struct crypto_aead *tfm, + unsigned int authsize) +{ + return (authsize <= MORUS_MAX_AUTH_SIZE) ? 0 : -EINVAL; +} +EXPORT_SYMBOL_GPL(crypto_morus1280_glue_setauthsize); + +static void crypto_morus1280_glue_crypt(struct aead_request *req, + struct morus1280_ops ops, + unsigned int cryptlen, + struct morus1280_block *tag_xor) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct morus1280_ctx *ctx = crypto_aead_ctx(tfm); + struct morus1280_state state; + struct skcipher_walk walk; + + ops.skcipher_walk_init(&walk, req, true); + + kernel_fpu_begin(); + + ctx->ops->init(&state, &ctx->key, req->iv); + crypto_morus1280_glue_process_ad(&state, ctx->ops, req->src, req->assoclen); + crypto_morus1280_glue_process_crypt(&state, ops, &walk); + ctx->ops->final(&state, tag_xor, req->assoclen, cryptlen); + + kernel_fpu_end(); +} + +int crypto_morus1280_glue_encrypt(struct aead_request *req) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct morus1280_ctx *ctx = crypto_aead_ctx(tfm); + struct morus1280_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_encrypt, + .crypt_blocks = ctx->ops->enc, + .crypt_tail = ctx->ops->enc_tail, + }; + + struct morus1280_block tag = {}; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen; + + crypto_morus1280_glue_crypt(req, OPS, cryptlen, &tag); + + scatterwalk_map_and_copy(tag.bytes, req->dst, + req->assoclen + cryptlen, authsize, 1); + return 0; +} +EXPORT_SYMBOL_GPL(crypto_morus1280_glue_encrypt); + +int crypto_morus1280_glue_decrypt(struct aead_request *req) +{ + static const u8 zeros[MORUS1280_BLOCK_SIZE] = {}; + + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct morus1280_ctx *ctx = crypto_aead_ctx(tfm); + struct morus1280_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_decrypt, + .crypt_blocks = ctx->ops->dec, + .crypt_tail = ctx->ops->dec_tail, + }; + + struct morus1280_block tag; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen - authsize; + + scatterwalk_map_and_copy(tag.bytes, req->src, + req->assoclen + cryptlen, authsize, 0); + + crypto_morus1280_glue_crypt(req, OPS, cryptlen, &tag); + + return crypto_memneq(tag.bytes, zeros, authsize) ? -EBADMSG : 0; +} +EXPORT_SYMBOL_GPL(crypto_morus1280_glue_decrypt); + +void crypto_morus1280_glue_init_ops(struct crypto_aead *aead, + const struct morus1280_glue_ops *ops) +{ + struct morus1280_ctx *ctx = crypto_aead_ctx(aead); + ctx->ops = ops; +} +EXPORT_SYMBOL_GPL(crypto_morus1280_glue_init_ops); + +int cryptd_morus1280_glue_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setkey(&cryptd_tfm->base, key, keylen); +} +EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_setkey); + +int cryptd_morus1280_glue_setauthsize(struct crypto_aead *aead, + unsigned int authsize) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setauthsize(&cryptd_tfm->base, authsize); +} +EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_setauthsize); + +int cryptd_morus1280_glue_encrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_encrypt(req); +} +EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_encrypt); + +int cryptd_morus1280_glue_decrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_decrypt(req); +} +EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_decrypt); + +int cryptd_morus1280_glue_init_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead *cryptd_tfm; + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + const char *name = crypto_aead_alg(aead)->base.cra_driver_name; + char internal_name[CRYPTO_MAX_ALG_NAME]; + + if (snprintf(internal_name, CRYPTO_MAX_ALG_NAME, "__%s", name) + >= CRYPTO_MAX_ALG_NAME) + return -ENAMETOOLONG; + + cryptd_tfm = cryptd_alloc_aead(internal_name, CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(cryptd_tfm)) + return PTR_ERR(cryptd_tfm); + + *ctx = cryptd_tfm; + crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); + return 0; +} +EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_init_tfm); + +void cryptd_morus1280_glue_exit_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_free_aead(*ctx); +} +EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_exit_tfm); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); +MODULE_DESCRIPTION("MORUS-1280 AEAD mode -- glue for x86 optimizations"); diff --git a/arch/x86/crypto/morus640-sse2-asm.S b/arch/x86/crypto/morus640-sse2-asm.S new file mode 100644 index 000000000..414db4802 --- /dev/null +++ b/arch/x86/crypto/morus640-sse2-asm.S @@ -0,0 +1,615 @@ +/* + * SSE2 implementation of MORUS-640 + * + * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> + +#define SHUFFLE_MASK(i0, i1, i2, i3) \ + (i0 | (i1 << 2) | (i2 << 4) | (i3 << 6)) + +#define MASK1 SHUFFLE_MASK(3, 0, 1, 2) +#define MASK2 SHUFFLE_MASK(2, 3, 0, 1) +#define MASK3 SHUFFLE_MASK(1, 2, 3, 0) + +#define STATE0 %xmm0 +#define STATE1 %xmm1 +#define STATE2 %xmm2 +#define STATE3 %xmm3 +#define STATE4 %xmm4 +#define KEY %xmm5 +#define MSG %xmm5 +#define T0 %xmm6 +#define T1 %xmm7 + +.section .rodata.cst16.morus640_const, "aM", @progbits, 32 +.align 16 +.Lmorus640_const_0: + .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d + .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 +.Lmorus640_const_1: + .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 + .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd + +.section .rodata.cst16.morus640_counter, "aM", @progbits, 16 +.align 16 +.Lmorus640_counter: + .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 + .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f + +.text + +.macro morus640_round s0, s1, s2, s3, s4, b, w + movdqa \s1, T0 + pand \s2, T0 + pxor T0, \s0 + pxor \s3, \s0 + movdqa \s0, T0 + pslld $\b, T0 + psrld $(32 - \b), \s0 + pxor T0, \s0 + pshufd $\w, \s3, \s3 +.endm + +/* + * __morus640_update: internal ABI + * input: + * STATE[0-4] - input state + * MSG - message block + * output: + * STATE[0-4] - output state + * changed: + * T0 + */ +__morus640_update: + morus640_round STATE0, STATE1, STATE2, STATE3, STATE4, 5, MASK1 + pxor MSG, STATE1 + morus640_round STATE1, STATE2, STATE3, STATE4, STATE0, 31, MASK2 + pxor MSG, STATE2 + morus640_round STATE2, STATE3, STATE4, STATE0, STATE1, 7, MASK3 + pxor MSG, STATE3 + morus640_round STATE3, STATE4, STATE0, STATE1, STATE2, 22, MASK2 + pxor MSG, STATE4 + morus640_round STATE4, STATE0, STATE1, STATE2, STATE3, 13, MASK1 + ret +ENDPROC(__morus640_update) + + +/* + * __morus640_update_zero: internal ABI + * input: + * STATE[0-4] - input state + * output: + * STATE[0-4] - output state + * changed: + * T0 + */ +__morus640_update_zero: + morus640_round STATE0, STATE1, STATE2, STATE3, STATE4, 5, MASK1 + morus640_round STATE1, STATE2, STATE3, STATE4, STATE0, 31, MASK2 + morus640_round STATE2, STATE3, STATE4, STATE0, STATE1, 7, MASK3 + morus640_round STATE3, STATE4, STATE0, STATE1, STATE2, 22, MASK2 + morus640_round STATE4, STATE0, STATE1, STATE2, STATE3, 13, MASK1 + ret +ENDPROC(__morus640_update_zero) + +/* + * __load_partial: internal ABI + * input: + * %rsi - src + * %rcx - bytes + * output: + * MSG - message block + * changed: + * T0 + * %r8 + * %r9 + */ +__load_partial: + xor %r9d, %r9d + pxor MSG, MSG + + mov %rcx, %r8 + and $0x1, %r8 + jz .Lld_partial_1 + + mov %rcx, %r8 + and $0x1E, %r8 + add %rsi, %r8 + mov (%r8), %r9b + +.Lld_partial_1: + mov %rcx, %r8 + and $0x2, %r8 + jz .Lld_partial_2 + + mov %rcx, %r8 + and $0x1C, %r8 + add %rsi, %r8 + shl $16, %r9 + mov (%r8), %r9w + +.Lld_partial_2: + mov %rcx, %r8 + and $0x4, %r8 + jz .Lld_partial_4 + + mov %rcx, %r8 + and $0x18, %r8 + add %rsi, %r8 + shl $32, %r9 + mov (%r8), %r8d + xor %r8, %r9 + +.Lld_partial_4: + movq %r9, MSG + + mov %rcx, %r8 + and $0x8, %r8 + jz .Lld_partial_8 + + mov %rcx, %r8 + and $0x10, %r8 + add %rsi, %r8 + pslldq $8, MSG + movq (%r8), T0 + pxor T0, MSG + +.Lld_partial_8: + ret +ENDPROC(__load_partial) + +/* + * __store_partial: internal ABI + * input: + * %rdx - dst + * %rcx - bytes + * output: + * T0 - message block + * changed: + * %r8 + * %r9 + * %r10 + */ +__store_partial: + mov %rcx, %r8 + mov %rdx, %r9 + + movq T0, %r10 + + cmp $8, %r8 + jl .Lst_partial_8 + + mov %r10, (%r9) + psrldq $8, T0 + movq T0, %r10 + + sub $8, %r8 + add $8, %r9 + +.Lst_partial_8: + cmp $4, %r8 + jl .Lst_partial_4 + + mov %r10d, (%r9) + shr $32, %r10 + + sub $4, %r8 + add $4, %r9 + +.Lst_partial_4: + cmp $2, %r8 + jl .Lst_partial_2 + + mov %r10w, (%r9) + shr $16, %r10 + + sub $2, %r8 + add $2, %r9 + +.Lst_partial_2: + cmp $1, %r8 + jl .Lst_partial_1 + + mov %r10b, (%r9) + +.Lst_partial_1: + ret +ENDPROC(__store_partial) + +/* + * void crypto_morus640_sse2_init(void *state, const void *key, const void *iv); + */ +ENTRY(crypto_morus640_sse2_init) + FRAME_BEGIN + + /* load IV: */ + movdqu (%rdx), STATE0 + /* load key: */ + movdqu (%rsi), KEY + movdqa KEY, STATE1 + /* load all ones: */ + pcmpeqd STATE2, STATE2 + /* load the constants: */ + movdqa .Lmorus640_const_0, STATE3 + movdqa .Lmorus640_const_1, STATE4 + + /* update 16 times with zero: */ + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + call __morus640_update_zero + + /* xor-in the key again after updates: */ + pxor KEY, STATE1 + + /* store the state: */ + movdqu STATE0, (0 * 16)(%rdi) + movdqu STATE1, (1 * 16)(%rdi) + movdqu STATE2, (2 * 16)(%rdi) + movdqu STATE3, (3 * 16)(%rdi) + movdqu STATE4, (4 * 16)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus640_sse2_init) + +/* + * void crypto_morus640_sse2_ad(void *state, const void *data, + * unsigned int length); + */ +ENTRY(crypto_morus640_sse2_ad) + FRAME_BEGIN + + cmp $16, %rdx + jb .Lad_out + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0 + movdqu (1 * 16)(%rdi), STATE1 + movdqu (2 * 16)(%rdi), STATE2 + movdqu (3 * 16)(%rdi), STATE3 + movdqu (4 * 16)(%rdi), STATE4 + + mov %rsi, %r8 + and $0xF, %r8 + jnz .Lad_u_loop + +.align 4 +.Lad_a_loop: + movdqa (%rsi), MSG + call __morus640_update + sub $16, %rdx + add $16, %rsi + cmp $16, %rdx + jge .Lad_a_loop + + jmp .Lad_cont +.align 4 +.Lad_u_loop: + movdqu (%rsi), MSG + call __morus640_update + sub $16, %rdx + add $16, %rsi + cmp $16, %rdx + jge .Lad_u_loop + +.Lad_cont: + /* store the state: */ + movdqu STATE0, (0 * 16)(%rdi) + movdqu STATE1, (1 * 16)(%rdi) + movdqu STATE2, (2 * 16)(%rdi) + movdqu STATE3, (3 * 16)(%rdi) + movdqu STATE4, (4 * 16)(%rdi) + +.Lad_out: + FRAME_END + ret +ENDPROC(crypto_morus640_sse2_ad) + +/* + * void crypto_morus640_sse2_enc(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus640_sse2_enc) + FRAME_BEGIN + + cmp $16, %rcx + jb .Lenc_out + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0 + movdqu (1 * 16)(%rdi), STATE1 + movdqu (2 * 16)(%rdi), STATE2 + movdqu (3 * 16)(%rdi), STATE3 + movdqu (4 * 16)(%rdi), STATE4 + + mov %rsi, %r8 + or %rdx, %r8 + and $0xF, %r8 + jnz .Lenc_u_loop + +.align 4 +.Lenc_a_loop: + movdqa (%rsi), MSG + movdqa MSG, T0 + pxor STATE0, T0 + pshufd $MASK3, STATE1, T1 + pxor T1, T0 + movdqa STATE2, T1 + pand STATE3, T1 + pxor T1, T0 + movdqa T0, (%rdx) + + call __morus640_update + sub $16, %rcx + add $16, %rsi + add $16, %rdx + cmp $16, %rcx + jge .Lenc_a_loop + + jmp .Lenc_cont +.align 4 +.Lenc_u_loop: + movdqu (%rsi), MSG + movdqa MSG, T0 + pxor STATE0, T0 + pshufd $MASK3, STATE1, T1 + pxor T1, T0 + movdqa STATE2, T1 + pand STATE3, T1 + pxor T1, T0 + movdqu T0, (%rdx) + + call __morus640_update + sub $16, %rcx + add $16, %rsi + add $16, %rdx + cmp $16, %rcx + jge .Lenc_u_loop + +.Lenc_cont: + /* store the state: */ + movdqu STATE0, (0 * 16)(%rdi) + movdqu STATE1, (1 * 16)(%rdi) + movdqu STATE2, (2 * 16)(%rdi) + movdqu STATE3, (3 * 16)(%rdi) + movdqu STATE4, (4 * 16)(%rdi) + +.Lenc_out: + FRAME_END + ret +ENDPROC(crypto_morus640_sse2_enc) + +/* + * void crypto_morus640_sse2_enc_tail(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus640_sse2_enc_tail) + FRAME_BEGIN + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0 + movdqu (1 * 16)(%rdi), STATE1 + movdqu (2 * 16)(%rdi), STATE2 + movdqu (3 * 16)(%rdi), STATE3 + movdqu (4 * 16)(%rdi), STATE4 + + /* encrypt message: */ + call __load_partial + + movdqa MSG, T0 + pxor STATE0, T0 + pshufd $MASK3, STATE1, T1 + pxor T1, T0 + movdqa STATE2, T1 + pand STATE3, T1 + pxor T1, T0 + + call __store_partial + + call __morus640_update + + /* store the state: */ + movdqu STATE0, (0 * 16)(%rdi) + movdqu STATE1, (1 * 16)(%rdi) + movdqu STATE2, (2 * 16)(%rdi) + movdqu STATE3, (3 * 16)(%rdi) + movdqu STATE4, (4 * 16)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus640_sse2_enc_tail) + +/* + * void crypto_morus640_sse2_dec(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus640_sse2_dec) + FRAME_BEGIN + + cmp $16, %rcx + jb .Ldec_out + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0 + movdqu (1 * 16)(%rdi), STATE1 + movdqu (2 * 16)(%rdi), STATE2 + movdqu (3 * 16)(%rdi), STATE3 + movdqu (4 * 16)(%rdi), STATE4 + + mov %rsi, %r8 + or %rdx, %r8 + and $0xF, %r8 + jnz .Ldec_u_loop + +.align 4 +.Ldec_a_loop: + movdqa (%rsi), MSG + pxor STATE0, MSG + pshufd $MASK3, STATE1, T0 + pxor T0, MSG + movdqa STATE2, T0 + pand STATE3, T0 + pxor T0, MSG + movdqa MSG, (%rdx) + + call __morus640_update + sub $16, %rcx + add $16, %rsi + add $16, %rdx + cmp $16, %rcx + jge .Ldec_a_loop + + jmp .Ldec_cont +.align 4 +.Ldec_u_loop: + movdqu (%rsi), MSG + pxor STATE0, MSG + pshufd $MASK3, STATE1, T0 + pxor T0, MSG + movdqa STATE2, T0 + pand STATE3, T0 + pxor T0, MSG + movdqu MSG, (%rdx) + + call __morus640_update + sub $16, %rcx + add $16, %rsi + add $16, %rdx + cmp $16, %rcx + jge .Ldec_u_loop + +.Ldec_cont: + /* store the state: */ + movdqu STATE0, (0 * 16)(%rdi) + movdqu STATE1, (1 * 16)(%rdi) + movdqu STATE2, (2 * 16)(%rdi) + movdqu STATE3, (3 * 16)(%rdi) + movdqu STATE4, (4 * 16)(%rdi) + +.Ldec_out: + FRAME_END + ret +ENDPROC(crypto_morus640_sse2_dec) + +/* + * void crypto_morus640_sse2_dec_tail(void *state, const void *src, void *dst, + * unsigned int length); + */ +ENTRY(crypto_morus640_sse2_dec_tail) + FRAME_BEGIN + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0 + movdqu (1 * 16)(%rdi), STATE1 + movdqu (2 * 16)(%rdi), STATE2 + movdqu (3 * 16)(%rdi), STATE3 + movdqu (4 * 16)(%rdi), STATE4 + + /* decrypt message: */ + call __load_partial + + pxor STATE0, MSG + pshufd $MASK3, STATE1, T0 + pxor T0, MSG + movdqa STATE2, T0 + pand STATE3, T0 + pxor T0, MSG + movdqa MSG, T0 + + call __store_partial + + /* mask with byte count: */ + movq %rcx, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + punpcklbw T0, T0 + movdqa .Lmorus640_counter, T1 + pcmpgtb T1, T0 + pand T0, MSG + + call __morus640_update + + /* store the state: */ + movdqu STATE0, (0 * 16)(%rdi) + movdqu STATE1, (1 * 16)(%rdi) + movdqu STATE2, (2 * 16)(%rdi) + movdqu STATE3, (3 * 16)(%rdi) + movdqu STATE4, (4 * 16)(%rdi) + + FRAME_END + ret +ENDPROC(crypto_morus640_sse2_dec_tail) + +/* + * void crypto_morus640_sse2_final(void *state, void *tag_xor, + * u64 assoclen, u64 cryptlen); + */ +ENTRY(crypto_morus640_sse2_final) + FRAME_BEGIN + + /* load the state: */ + movdqu (0 * 16)(%rdi), STATE0 + movdqu (1 * 16)(%rdi), STATE1 + movdqu (2 * 16)(%rdi), STATE2 + movdqu (3 * 16)(%rdi), STATE3 + movdqu (4 * 16)(%rdi), STATE4 + + /* xor state[0] into state[4]: */ + pxor STATE0, STATE4 + + /* prepare length block: */ + movq %rdx, MSG + movq %rcx, T0 + pslldq $8, T0 + pxor T0, MSG + psllq $3, MSG /* multiply by 8 (to get bit count) */ + + /* update state: */ + call __morus640_update + call __morus640_update + call __morus640_update + call __morus640_update + call __morus640_update + call __morus640_update + call __morus640_update + call __morus640_update + call __morus640_update + call __morus640_update + + /* xor tag: */ + movdqu (%rsi), MSG + + pxor STATE0, MSG + pshufd $MASK3, STATE1, T0 + pxor T0, MSG + movdqa STATE2, T0 + pand STATE3, T0 + pxor T0, MSG + + movdqu MSG, (%rsi) + + FRAME_END + ret +ENDPROC(crypto_morus640_sse2_final) diff --git a/arch/x86/crypto/morus640-sse2-glue.c b/arch/x86/crypto/morus640-sse2-glue.c new file mode 100644 index 000000000..9afaf8f85 --- /dev/null +++ b/arch/x86/crypto/morus640-sse2-glue.c @@ -0,0 +1,63 @@ +/* + * The MORUS-640 Authenticated-Encryption Algorithm + * Glue for SSE2 implementation + * + * Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <crypto/internal/aead.h> +#include <crypto/morus640_glue.h> +#include <linux/module.h> +#include <asm/fpu/api.h> +#include <asm/cpu_device_id.h> + +asmlinkage void crypto_morus640_sse2_init(void *state, const void *key, + const void *iv); +asmlinkage void crypto_morus640_sse2_ad(void *state, const void *data, + unsigned int length); + +asmlinkage void crypto_morus640_sse2_enc(void *state, const void *src, + void *dst, unsigned int length); +asmlinkage void crypto_morus640_sse2_dec(void *state, const void *src, + void *dst, unsigned int length); + +asmlinkage void crypto_morus640_sse2_enc_tail(void *state, const void *src, + void *dst, unsigned int length); +asmlinkage void crypto_morus640_sse2_dec_tail(void *state, const void *src, + void *dst, unsigned int length); + +asmlinkage void crypto_morus640_sse2_final(void *state, void *tag_xor, + u64 assoclen, u64 cryptlen); + +MORUS640_DECLARE_ALGS(sse2, "morus640-sse2", 400); + +static int __init crypto_morus640_sse2_module_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_XMM2) || + !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) + return -ENODEV; + + return crypto_register_aeads(crypto_morus640_sse2_algs, + ARRAY_SIZE(crypto_morus640_sse2_algs)); +} + +static void __exit crypto_morus640_sse2_module_exit(void) +{ + crypto_unregister_aeads(crypto_morus640_sse2_algs, + ARRAY_SIZE(crypto_morus640_sse2_algs)); +} + +module_init(crypto_morus640_sse2_module_init); +module_exit(crypto_morus640_sse2_module_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); +MODULE_DESCRIPTION("MORUS-640 AEAD algorithm -- SSE2 implementation"); +MODULE_ALIAS_CRYPTO("morus640"); +MODULE_ALIAS_CRYPTO("morus640-sse2"); diff --git a/arch/x86/crypto/morus640_glue.c b/arch/x86/crypto/morus640_glue.c new file mode 100644 index 000000000..cb3a81732 --- /dev/null +++ b/arch/x86/crypto/morus640_glue.c @@ -0,0 +1,289 @@ +/* + * The MORUS-640 Authenticated-Encryption Algorithm + * Common x86 SIMD glue skeleton + * + * Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com> + * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <crypto/cryptd.h> +#include <crypto/internal/aead.h> +#include <crypto/internal/skcipher.h> +#include <crypto/morus640_glue.h> +#include <crypto/scatterwalk.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/scatterlist.h> +#include <asm/fpu/api.h> + +struct morus640_state { + struct morus640_block s[MORUS_STATE_BLOCKS]; +}; + +struct morus640_ops { + int (*skcipher_walk_init)(struct skcipher_walk *walk, + struct aead_request *req, bool atomic); + + void (*crypt_blocks)(void *state, const void *src, void *dst, + unsigned int length); + void (*crypt_tail)(void *state, const void *src, void *dst, + unsigned int length); +}; + +static void crypto_morus640_glue_process_ad( + struct morus640_state *state, + const struct morus640_glue_ops *ops, + struct scatterlist *sg_src, unsigned int assoclen) +{ + struct scatter_walk walk; + struct morus640_block buf; + unsigned int pos = 0; + + scatterwalk_start(&walk, sg_src); + while (assoclen != 0) { + unsigned int size = scatterwalk_clamp(&walk, assoclen); + unsigned int left = size; + void *mapped = scatterwalk_map(&walk); + const u8 *src = (const u8 *)mapped; + + if (pos + size >= MORUS640_BLOCK_SIZE) { + if (pos > 0) { + unsigned int fill = MORUS640_BLOCK_SIZE - pos; + memcpy(buf.bytes + pos, src, fill); + ops->ad(state, buf.bytes, MORUS640_BLOCK_SIZE); + pos = 0; + left -= fill; + src += fill; + } + + ops->ad(state, src, left); + src += left & ~(MORUS640_BLOCK_SIZE - 1); + left &= MORUS640_BLOCK_SIZE - 1; + } + + memcpy(buf.bytes + pos, src, left); + + pos += left; + assoclen -= size; + scatterwalk_unmap(mapped); + scatterwalk_advance(&walk, size); + scatterwalk_done(&walk, 0, assoclen); + } + + if (pos > 0) { + memset(buf.bytes + pos, 0, MORUS640_BLOCK_SIZE - pos); + ops->ad(state, buf.bytes, MORUS640_BLOCK_SIZE); + } +} + +static void crypto_morus640_glue_process_crypt(struct morus640_state *state, + struct morus640_ops ops, + struct skcipher_walk *walk) +{ + while (walk->nbytes >= MORUS640_BLOCK_SIZE) { + ops.crypt_blocks(state, walk->src.virt.addr, + walk->dst.virt.addr, + round_down(walk->nbytes, MORUS640_BLOCK_SIZE)); + skcipher_walk_done(walk, walk->nbytes % MORUS640_BLOCK_SIZE); + } + + if (walk->nbytes) { + ops.crypt_tail(state, walk->src.virt.addr, walk->dst.virt.addr, + walk->nbytes); + skcipher_walk_done(walk, 0); + } +} + +int crypto_morus640_glue_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct morus640_ctx *ctx = crypto_aead_ctx(aead); + + if (keylen != MORUS640_BLOCK_SIZE) { + crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); + return -EINVAL; + } + + memcpy(ctx->key.bytes, key, MORUS640_BLOCK_SIZE); + return 0; +} +EXPORT_SYMBOL_GPL(crypto_morus640_glue_setkey); + +int crypto_morus640_glue_setauthsize(struct crypto_aead *tfm, + unsigned int authsize) +{ + return (authsize <= MORUS_MAX_AUTH_SIZE) ? 0 : -EINVAL; +} +EXPORT_SYMBOL_GPL(crypto_morus640_glue_setauthsize); + +static void crypto_morus640_glue_crypt(struct aead_request *req, + struct morus640_ops ops, + unsigned int cryptlen, + struct morus640_block *tag_xor) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct morus640_ctx *ctx = crypto_aead_ctx(tfm); + struct morus640_state state; + struct skcipher_walk walk; + + ops.skcipher_walk_init(&walk, req, true); + + kernel_fpu_begin(); + + ctx->ops->init(&state, &ctx->key, req->iv); + crypto_morus640_glue_process_ad(&state, ctx->ops, req->src, req->assoclen); + crypto_morus640_glue_process_crypt(&state, ops, &walk); + ctx->ops->final(&state, tag_xor, req->assoclen, cryptlen); + + kernel_fpu_end(); +} + +int crypto_morus640_glue_encrypt(struct aead_request *req) +{ + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct morus640_ctx *ctx = crypto_aead_ctx(tfm); + struct morus640_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_encrypt, + .crypt_blocks = ctx->ops->enc, + .crypt_tail = ctx->ops->enc_tail, + }; + + struct morus640_block tag = {}; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen; + + crypto_morus640_glue_crypt(req, OPS, cryptlen, &tag); + + scatterwalk_map_and_copy(tag.bytes, req->dst, + req->assoclen + cryptlen, authsize, 1); + return 0; +} +EXPORT_SYMBOL_GPL(crypto_morus640_glue_encrypt); + +int crypto_morus640_glue_decrypt(struct aead_request *req) +{ + static const u8 zeros[MORUS640_BLOCK_SIZE] = {}; + + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + struct morus640_ctx *ctx = crypto_aead_ctx(tfm); + struct morus640_ops OPS = { + .skcipher_walk_init = skcipher_walk_aead_decrypt, + .crypt_blocks = ctx->ops->dec, + .crypt_tail = ctx->ops->dec_tail, + }; + + struct morus640_block tag; + unsigned int authsize = crypto_aead_authsize(tfm); + unsigned int cryptlen = req->cryptlen - authsize; + + scatterwalk_map_and_copy(tag.bytes, req->src, + req->assoclen + cryptlen, authsize, 0); + + crypto_morus640_glue_crypt(req, OPS, cryptlen, &tag); + + return crypto_memneq(tag.bytes, zeros, authsize) ? -EBADMSG : 0; +} +EXPORT_SYMBOL_GPL(crypto_morus640_glue_decrypt); + +void crypto_morus640_glue_init_ops(struct crypto_aead *aead, + const struct morus640_glue_ops *ops) +{ + struct morus640_ctx *ctx = crypto_aead_ctx(aead); + ctx->ops = ops; +} +EXPORT_SYMBOL_GPL(crypto_morus640_glue_init_ops); + +int cryptd_morus640_glue_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setkey(&cryptd_tfm->base, key, keylen); +} +EXPORT_SYMBOL_GPL(cryptd_morus640_glue_setkey); + +int cryptd_morus640_glue_setauthsize(struct crypto_aead *aead, + unsigned int authsize) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + return crypto_aead_setauthsize(&cryptd_tfm->base, authsize); +} +EXPORT_SYMBOL_GPL(cryptd_morus640_glue_setauthsize); + +int cryptd_morus640_glue_encrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_encrypt(req); +} +EXPORT_SYMBOL_GPL(cryptd_morus640_glue_encrypt); + +int cryptd_morus640_glue_decrypt(struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + struct cryptd_aead *cryptd_tfm = *ctx; + + aead = &cryptd_tfm->base; + if (irq_fpu_usable() && (!in_atomic() || + !cryptd_aead_queued(cryptd_tfm))) + aead = cryptd_aead_child(cryptd_tfm); + + aead_request_set_tfm(req, aead); + + return crypto_aead_decrypt(req); +} +EXPORT_SYMBOL_GPL(cryptd_morus640_glue_decrypt); + +int cryptd_morus640_glue_init_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead *cryptd_tfm; + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + const char *name = crypto_aead_alg(aead)->base.cra_driver_name; + char internal_name[CRYPTO_MAX_ALG_NAME]; + + if (snprintf(internal_name, CRYPTO_MAX_ALG_NAME, "__%s", name) + >= CRYPTO_MAX_ALG_NAME) + return -ENAMETOOLONG; + + cryptd_tfm = cryptd_alloc_aead(internal_name, CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(cryptd_tfm)) + return PTR_ERR(cryptd_tfm); + + *ctx = cryptd_tfm; + crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); + return 0; +} +EXPORT_SYMBOL_GPL(cryptd_morus640_glue_init_tfm); + +void cryptd_morus640_glue_exit_tfm(struct crypto_aead *aead) +{ + struct cryptd_aead **ctx = crypto_aead_ctx(aead); + + cryptd_free_aead(*ctx); +} +EXPORT_SYMBOL_GPL(cryptd_morus640_glue_exit_tfm); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); +MODULE_DESCRIPTION("MORUS-640 AEAD mode -- glue for x86 optimizations"); diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S new file mode 100644 index 000000000..8457cdd47 --- /dev/null +++ b/arch/x86/crypto/poly1305-avx2-x86_64.S @@ -0,0 +1,394 @@ +/* + * Poly1305 authenticator algorithm, RFC7539, x64 AVX2 functions + * + * Copyright (C) 2015 Martin Willi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/linkage.h> + +.section .rodata.cst32.ANMASK, "aM", @progbits, 32 +.align 32 +ANMASK: .octa 0x0000000003ffffff0000000003ffffff + .octa 0x0000000003ffffff0000000003ffffff + +.section .rodata.cst32.ORMASK, "aM", @progbits, 32 +.align 32 +ORMASK: .octa 0x00000000010000000000000001000000 + .octa 0x00000000010000000000000001000000 + +.text + +#define h0 0x00(%rdi) +#define h1 0x04(%rdi) +#define h2 0x08(%rdi) +#define h3 0x0c(%rdi) +#define h4 0x10(%rdi) +#define r0 0x00(%rdx) +#define r1 0x04(%rdx) +#define r2 0x08(%rdx) +#define r3 0x0c(%rdx) +#define r4 0x10(%rdx) +#define u0 0x00(%r8) +#define u1 0x04(%r8) +#define u2 0x08(%r8) +#define u3 0x0c(%r8) +#define u4 0x10(%r8) +#define w0 0x14(%r8) +#define w1 0x18(%r8) +#define w2 0x1c(%r8) +#define w3 0x20(%r8) +#define w4 0x24(%r8) +#define y0 0x28(%r8) +#define y1 0x2c(%r8) +#define y2 0x30(%r8) +#define y3 0x34(%r8) +#define y4 0x38(%r8) +#define m %rsi +#define hc0 %ymm0 +#define hc1 %ymm1 +#define hc2 %ymm2 +#define hc3 %ymm3 +#define hc4 %ymm4 +#define hc0x %xmm0 +#define hc1x %xmm1 +#define hc2x %xmm2 +#define hc3x %xmm3 +#define hc4x %xmm4 +#define t1 %ymm5 +#define t2 %ymm6 +#define t1x %xmm5 +#define t2x %xmm6 +#define ruwy0 %ymm7 +#define ruwy1 %ymm8 +#define ruwy2 %ymm9 +#define ruwy3 %ymm10 +#define ruwy4 %ymm11 +#define ruwy0x %xmm7 +#define ruwy1x %xmm8 +#define ruwy2x %xmm9 +#define ruwy3x %xmm10 +#define ruwy4x %xmm11 +#define svxz1 %ymm12 +#define svxz2 %ymm13 +#define svxz3 %ymm14 +#define svxz4 %ymm15 +#define d0 %r9 +#define d1 %r10 +#define d2 %r11 +#define d3 %r12 +#define d4 %r13 + +ENTRY(poly1305_4block_avx2) + # %rdi: Accumulator h[5] + # %rsi: 64 byte input block m + # %rdx: Poly1305 key r[5] + # %rcx: Quadblock count + # %r8: Poly1305 derived key r^2 u[5], r^3 w[5], r^4 y[5], + + # This four-block variant uses loop unrolled block processing. It + # requires 4 Poly1305 keys: r, r^2, r^3 and r^4: + # h = (h + m) * r => h = (h + m1) * r^4 + m2 * r^3 + m3 * r^2 + m4 * r + + vzeroupper + push %rbx + push %r12 + push %r13 + + # combine r0,u0,w0,y0 + vmovd y0,ruwy0x + vmovd w0,t1x + vpunpcklqdq t1,ruwy0,ruwy0 + vmovd u0,t1x + vmovd r0,t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,ruwy0,ruwy0 + + # combine r1,u1,w1,y1 and s1=r1*5,v1=u1*5,x1=w1*5,z1=y1*5 + vmovd y1,ruwy1x + vmovd w1,t1x + vpunpcklqdq t1,ruwy1,ruwy1 + vmovd u1,t1x + vmovd r1,t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,ruwy1,ruwy1 + vpslld $2,ruwy1,svxz1 + vpaddd ruwy1,svxz1,svxz1 + + # combine r2,u2,w2,y2 and s2=r2*5,v2=u2*5,x2=w2*5,z2=y2*5 + vmovd y2,ruwy2x + vmovd w2,t1x + vpunpcklqdq t1,ruwy2,ruwy2 + vmovd u2,t1x + vmovd r2,t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,ruwy2,ruwy2 + vpslld $2,ruwy2,svxz2 + vpaddd ruwy2,svxz2,svxz2 + + # combine r3,u3,w3,y3 and s3=r3*5,v3=u3*5,x3=w3*5,z3=y3*5 + vmovd y3,ruwy3x + vmovd w3,t1x + vpunpcklqdq t1,ruwy3,ruwy3 + vmovd u3,t1x + vmovd r3,t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,ruwy3,ruwy3 + vpslld $2,ruwy3,svxz3 + vpaddd ruwy3,svxz3,svxz3 + + # combine r4,u4,w4,y4 and s4=r4*5,v4=u4*5,x4=w4*5,z4=y4*5 + vmovd y4,ruwy4x + vmovd w4,t1x + vpunpcklqdq t1,ruwy4,ruwy4 + vmovd u4,t1x + vmovd r4,t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,ruwy4,ruwy4 + vpslld $2,ruwy4,svxz4 + vpaddd ruwy4,svxz4,svxz4 + +.Ldoblock4: + # hc0 = [m[48-51] & 0x3ffffff, m[32-35] & 0x3ffffff, + # m[16-19] & 0x3ffffff, m[ 0- 3] & 0x3ffffff + h0] + vmovd 0x00(m),hc0x + vmovd 0x10(m),t1x + vpunpcklqdq t1,hc0,hc0 + vmovd 0x20(m),t1x + vmovd 0x30(m),t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,hc0,hc0 + vpand ANMASK(%rip),hc0,hc0 + vmovd h0,t1x + vpaddd t1,hc0,hc0 + # hc1 = [(m[51-54] >> 2) & 0x3ffffff, (m[35-38] >> 2) & 0x3ffffff, + # (m[19-22] >> 2) & 0x3ffffff, (m[ 3- 6] >> 2) & 0x3ffffff + h1] + vmovd 0x03(m),hc1x + vmovd 0x13(m),t1x + vpunpcklqdq t1,hc1,hc1 + vmovd 0x23(m),t1x + vmovd 0x33(m),t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,hc1,hc1 + vpsrld $2,hc1,hc1 + vpand ANMASK(%rip),hc1,hc1 + vmovd h1,t1x + vpaddd t1,hc1,hc1 + # hc2 = [(m[54-57] >> 4) & 0x3ffffff, (m[38-41] >> 4) & 0x3ffffff, + # (m[22-25] >> 4) & 0x3ffffff, (m[ 6- 9] >> 4) & 0x3ffffff + h2] + vmovd 0x06(m),hc2x + vmovd 0x16(m),t1x + vpunpcklqdq t1,hc2,hc2 + vmovd 0x26(m),t1x + vmovd 0x36(m),t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,hc2,hc2 + vpsrld $4,hc2,hc2 + vpand ANMASK(%rip),hc2,hc2 + vmovd h2,t1x + vpaddd t1,hc2,hc2 + # hc3 = [(m[57-60] >> 6) & 0x3ffffff, (m[41-44] >> 6) & 0x3ffffff, + # (m[25-28] >> 6) & 0x3ffffff, (m[ 9-12] >> 6) & 0x3ffffff + h3] + vmovd 0x09(m),hc3x + vmovd 0x19(m),t1x + vpunpcklqdq t1,hc3,hc3 + vmovd 0x29(m),t1x + vmovd 0x39(m),t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,hc3,hc3 + vpsrld $6,hc3,hc3 + vpand ANMASK(%rip),hc3,hc3 + vmovd h3,t1x + vpaddd t1,hc3,hc3 + # hc4 = [(m[60-63] >> 8) | (1<<24), (m[44-47] >> 8) | (1<<24), + # (m[28-31] >> 8) | (1<<24), (m[12-15] >> 8) | (1<<24) + h4] + vmovd 0x0c(m),hc4x + vmovd 0x1c(m),t1x + vpunpcklqdq t1,hc4,hc4 + vmovd 0x2c(m),t1x + vmovd 0x3c(m),t2x + vpunpcklqdq t2,t1,t1 + vperm2i128 $0x20,t1,hc4,hc4 + vpsrld $8,hc4,hc4 + vpor ORMASK(%rip),hc4,hc4 + vmovd h4,t1x + vpaddd t1,hc4,hc4 + + # t1 = [ hc0[3] * r0, hc0[2] * u0, hc0[1] * w0, hc0[0] * y0 ] + vpmuludq hc0,ruwy0,t1 + # t1 += [ hc1[3] * s4, hc1[2] * v4, hc1[1] * x4, hc1[0] * z4 ] + vpmuludq hc1,svxz4,t2 + vpaddq t2,t1,t1 + # t1 += [ hc2[3] * s3, hc2[2] * v3, hc2[1] * x3, hc2[0] * z3 ] + vpmuludq hc2,svxz3,t2 + vpaddq t2,t1,t1 + # t1 += [ hc3[3] * s2, hc3[2] * v2, hc3[1] * x2, hc3[0] * z2 ] + vpmuludq hc3,svxz2,t2 + vpaddq t2,t1,t1 + # t1 += [ hc4[3] * s1, hc4[2] * v1, hc4[1] * x1, hc4[0] * z1 ] + vpmuludq hc4,svxz1,t2 + vpaddq t2,t1,t1 + # d0 = t1[0] + t1[1] + t[2] + t[3] + vpermq $0xee,t1,t2 + vpaddq t2,t1,t1 + vpsrldq $8,t1,t2 + vpaddq t2,t1,t1 + vmovq t1x,d0 + + # t1 = [ hc0[3] * r1, hc0[2] * u1,hc0[1] * w1, hc0[0] * y1 ] + vpmuludq hc0,ruwy1,t1 + # t1 += [ hc1[3] * r0, hc1[2] * u0, hc1[1] * w0, hc1[0] * y0 ] + vpmuludq hc1,ruwy0,t2 + vpaddq t2,t1,t1 + # t1 += [ hc2[3] * s4, hc2[2] * v4, hc2[1] * x4, hc2[0] * z4 ] + vpmuludq hc2,svxz4,t2 + vpaddq t2,t1,t1 + # t1 += [ hc3[3] * s3, hc3[2] * v3, hc3[1] * x3, hc3[0] * z3 ] + vpmuludq hc3,svxz3,t2 + vpaddq t2,t1,t1 + # t1 += [ hc4[3] * s2, hc4[2] * v2, hc4[1] * x2, hc4[0] * z2 ] + vpmuludq hc4,svxz2,t2 + vpaddq t2,t1,t1 + # d1 = t1[0] + t1[1] + t1[3] + t1[4] + vpermq $0xee,t1,t2 + vpaddq t2,t1,t1 + vpsrldq $8,t1,t2 + vpaddq t2,t1,t1 + vmovq t1x,d1 + + # t1 = [ hc0[3] * r2, hc0[2] * u2, hc0[1] * w2, hc0[0] * y2 ] + vpmuludq hc0,ruwy2,t1 + # t1 += [ hc1[3] * r1, hc1[2] * u1, hc1[1] * w1, hc1[0] * y1 ] + vpmuludq hc1,ruwy1,t2 + vpaddq t2,t1,t1 + # t1 += [ hc2[3] * r0, hc2[2] * u0, hc2[1] * w0, hc2[0] * y0 ] + vpmuludq hc2,ruwy0,t2 + vpaddq t2,t1,t1 + # t1 += [ hc3[3] * s4, hc3[2] * v4, hc3[1] * x4, hc3[0] * z4 ] + vpmuludq hc3,svxz4,t2 + vpaddq t2,t1,t1 + # t1 += [ hc4[3] * s3, hc4[2] * v3, hc4[1] * x3, hc4[0] * z3 ] + vpmuludq hc4,svxz3,t2 + vpaddq t2,t1,t1 + # d2 = t1[0] + t1[1] + t1[2] + t1[3] + vpermq $0xee,t1,t2 + vpaddq t2,t1,t1 + vpsrldq $8,t1,t2 + vpaddq t2,t1,t1 + vmovq t1x,d2 + + # t1 = [ hc0[3] * r3, hc0[2] * u3, hc0[1] * w3, hc0[0] * y3 ] + vpmuludq hc0,ruwy3,t1 + # t1 += [ hc1[3] * r2, hc1[2] * u2, hc1[1] * w2, hc1[0] * y2 ] + vpmuludq hc1,ruwy2,t2 + vpaddq t2,t1,t1 + # t1 += [ hc2[3] * r1, hc2[2] * u1, hc2[1] * w1, hc2[0] * y1 ] + vpmuludq hc2,ruwy1,t2 + vpaddq t2,t1,t1 + # t1 += [ hc3[3] * r0, hc3[2] * u0, hc3[1] * w0, hc3[0] * y0 ] + vpmuludq hc3,ruwy0,t2 + vpaddq t2,t1,t1 + # t1 += [ hc4[3] * s4, hc4[2] * v4, hc4[1] * x4, hc4[0] * z4 ] + vpmuludq hc4,svxz4,t2 + vpaddq t2,t1,t1 + # d3 = t1[0] + t1[1] + t1[2] + t1[3] + vpermq $0xee,t1,t2 + vpaddq t2,t1,t1 + vpsrldq $8,t1,t2 + vpaddq t2,t1,t1 + vmovq t1x,d3 + + # t1 = [ hc0[3] * r4, hc0[2] * u4, hc0[1] * w4, hc0[0] * y4 ] + vpmuludq hc0,ruwy4,t1 + # t1 += [ hc1[3] * r3, hc1[2] * u3, hc1[1] * w3, hc1[0] * y3 ] + vpmuludq hc1,ruwy3,t2 + vpaddq t2,t1,t1 + # t1 += [ hc2[3] * r2, hc2[2] * u2, hc2[1] * w2, hc2[0] * y2 ] + vpmuludq hc2,ruwy2,t2 + vpaddq t2,t1,t1 + # t1 += [ hc3[3] * r1, hc3[2] * u1, hc3[1] * w1, hc3[0] * y1 ] + vpmuludq hc3,ruwy1,t2 + vpaddq t2,t1,t1 + # t1 += [ hc4[3] * r0, hc4[2] * u0, hc4[1] * w0, hc4[0] * y0 ] + vpmuludq hc4,ruwy0,t2 + vpaddq t2,t1,t1 + # d4 = t1[0] + t1[1] + t1[2] + t1[3] + vpermq $0xee,t1,t2 + vpaddq t2,t1,t1 + vpsrldq $8,t1,t2 + vpaddq t2,t1,t1 + vmovq t1x,d4 + + # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 -> + # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small + # amount. Careful: we must not assume the carry bits 'd0 >> 26', + # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit + # integers. It's true in a single-block implementation, but not here. + + # d1 += d0 >> 26 + mov d0,%rax + shr $26,%rax + add %rax,d1 + # h0 = d0 & 0x3ffffff + mov d0,%rbx + and $0x3ffffff,%ebx + + # d2 += d1 >> 26 + mov d1,%rax + shr $26,%rax + add %rax,d2 + # h1 = d1 & 0x3ffffff + mov d1,%rax + and $0x3ffffff,%eax + mov %eax,h1 + + # d3 += d2 >> 26 + mov d2,%rax + shr $26,%rax + add %rax,d3 + # h2 = d2 & 0x3ffffff + mov d2,%rax + and $0x3ffffff,%eax + mov %eax,h2 + + # d4 += d3 >> 26 + mov d3,%rax + shr $26,%rax + add %rax,d4 + # h3 = d3 & 0x3ffffff + mov d3,%rax + and $0x3ffffff,%eax + mov %eax,h3 + + # h0 += (d4 >> 26) * 5 + mov d4,%rax + shr $26,%rax + lea (%rax,%rax,4),%rax + add %rax,%rbx + # h4 = d4 & 0x3ffffff + mov d4,%rax + and $0x3ffffff,%eax + mov %eax,h4 + + # h1 += h0 >> 26 + mov %rbx,%rax + shr $26,%rax + add %eax,h1 + # h0 = h0 & 0x3ffffff + andl $0x3ffffff,%ebx + mov %ebx,h0 + + add $0x40,m + dec %rcx + jnz .Ldoblock4 + + vzeroupper + pop %r13 + pop %r12 + pop %rbx + ret +ENDPROC(poly1305_4block_avx2) diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S new file mode 100644 index 000000000..5851c7418 --- /dev/null +++ b/arch/x86/crypto/poly1305-sse2-x86_64.S @@ -0,0 +1,590 @@ +/* + * Poly1305 authenticator algorithm, RFC7539, x64 SSE2 functions + * + * Copyright (C) 2015 Martin Willi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/linkage.h> + +.section .rodata.cst16.ANMASK, "aM", @progbits, 16 +.align 16 +ANMASK: .octa 0x0000000003ffffff0000000003ffffff + +.section .rodata.cst16.ORMASK, "aM", @progbits, 16 +.align 16 +ORMASK: .octa 0x00000000010000000000000001000000 + +.text + +#define h0 0x00(%rdi) +#define h1 0x04(%rdi) +#define h2 0x08(%rdi) +#define h3 0x0c(%rdi) +#define h4 0x10(%rdi) +#define r0 0x00(%rdx) +#define r1 0x04(%rdx) +#define r2 0x08(%rdx) +#define r3 0x0c(%rdx) +#define r4 0x10(%rdx) +#define s1 0x00(%rsp) +#define s2 0x04(%rsp) +#define s3 0x08(%rsp) +#define s4 0x0c(%rsp) +#define m %rsi +#define h01 %xmm0 +#define h23 %xmm1 +#define h44 %xmm2 +#define t1 %xmm3 +#define t2 %xmm4 +#define t3 %xmm5 +#define t4 %xmm6 +#define mask %xmm7 +#define d0 %r8 +#define d1 %r9 +#define d2 %r10 +#define d3 %r11 +#define d4 %r12 + +ENTRY(poly1305_block_sse2) + # %rdi: Accumulator h[5] + # %rsi: 16 byte input block m + # %rdx: Poly1305 key r[5] + # %rcx: Block count + + # This single block variant tries to improve performance by doing two + # multiplications in parallel using SSE instructions. There is quite + # some quardword packing involved, hence the speedup is marginal. + + push %rbx + push %r12 + sub $0x10,%rsp + + # s1..s4 = r1..r4 * 5 + mov r1,%eax + lea (%eax,%eax,4),%eax + mov %eax,s1 + mov r2,%eax + lea (%eax,%eax,4),%eax + mov %eax,s2 + mov r3,%eax + lea (%eax,%eax,4),%eax + mov %eax,s3 + mov r4,%eax + lea (%eax,%eax,4),%eax + mov %eax,s4 + + movdqa ANMASK(%rip),mask + +.Ldoblock: + # h01 = [0, h1, 0, h0] + # h23 = [0, h3, 0, h2] + # h44 = [0, h4, 0, h4] + movd h0,h01 + movd h1,t1 + movd h2,h23 + movd h3,t2 + movd h4,h44 + punpcklqdq t1,h01 + punpcklqdq t2,h23 + punpcklqdq h44,h44 + + # h01 += [ (m[3-6] >> 2) & 0x3ffffff, m[0-3] & 0x3ffffff ] + movd 0x00(m),t1 + movd 0x03(m),t2 + psrld $2,t2 + punpcklqdq t2,t1 + pand mask,t1 + paddd t1,h01 + # h23 += [ (m[9-12] >> 6) & 0x3ffffff, (m[6-9] >> 4) & 0x3ffffff ] + movd 0x06(m),t1 + movd 0x09(m),t2 + psrld $4,t1 + psrld $6,t2 + punpcklqdq t2,t1 + pand mask,t1 + paddd t1,h23 + # h44 += [ (m[12-15] >> 8) | (1 << 24), (m[12-15] >> 8) | (1 << 24) ] + mov 0x0c(m),%eax + shr $8,%eax + or $0x01000000,%eax + movd %eax,t1 + pshufd $0xc4,t1,t1 + paddd t1,h44 + + # t1[0] = h0 * r0 + h2 * s3 + # t1[1] = h1 * s4 + h3 * s2 + movd r0,t1 + movd s4,t2 + punpcklqdq t2,t1 + pmuludq h01,t1 + movd s3,t2 + movd s2,t3 + punpcklqdq t3,t2 + pmuludq h23,t2 + paddq t2,t1 + # t2[0] = h0 * r1 + h2 * s4 + # t2[1] = h1 * r0 + h3 * s3 + movd r1,t2 + movd r0,t3 + punpcklqdq t3,t2 + pmuludq h01,t2 + movd s4,t3 + movd s3,t4 + punpcklqdq t4,t3 + pmuludq h23,t3 + paddq t3,t2 + # t3[0] = h4 * s1 + # t3[1] = h4 * s2 + movd s1,t3 + movd s2,t4 + punpcklqdq t4,t3 + pmuludq h44,t3 + # d0 = t1[0] + t1[1] + t3[0] + # d1 = t2[0] + t2[1] + t3[1] + movdqa t1,t4 + punpcklqdq t2,t4 + punpckhqdq t2,t1 + paddq t4,t1 + paddq t3,t1 + movq t1,d0 + psrldq $8,t1 + movq t1,d1 + + # t1[0] = h0 * r2 + h2 * r0 + # t1[1] = h1 * r1 + h3 * s4 + movd r2,t1 + movd r1,t2 + punpcklqdq t2,t1 + pmuludq h01,t1 + movd r0,t2 + movd s4,t3 + punpcklqdq t3,t2 + pmuludq h23,t2 + paddq t2,t1 + # t2[0] = h0 * r3 + h2 * r1 + # t2[1] = h1 * r2 + h3 * r0 + movd r3,t2 + movd r2,t3 + punpcklqdq t3,t2 + pmuludq h01,t2 + movd r1,t3 + movd r0,t4 + punpcklqdq t4,t3 + pmuludq h23,t3 + paddq t3,t2 + # t3[0] = h4 * s3 + # t3[1] = h4 * s4 + movd s3,t3 + movd s4,t4 + punpcklqdq t4,t3 + pmuludq h44,t3 + # d2 = t1[0] + t1[1] + t3[0] + # d3 = t2[0] + t2[1] + t3[1] + movdqa t1,t4 + punpcklqdq t2,t4 + punpckhqdq t2,t1 + paddq t4,t1 + paddq t3,t1 + movq t1,d2 + psrldq $8,t1 + movq t1,d3 + + # t1[0] = h0 * r4 + h2 * r2 + # t1[1] = h1 * r3 + h3 * r1 + movd r4,t1 + movd r3,t2 + punpcklqdq t2,t1 + pmuludq h01,t1 + movd r2,t2 + movd r1,t3 + punpcklqdq t3,t2 + pmuludq h23,t2 + paddq t2,t1 + # t3[0] = h4 * r0 + movd r0,t3 + pmuludq h44,t3 + # d4 = t1[0] + t1[1] + t3[0] + movdqa t1,t4 + psrldq $8,t4 + paddq t4,t1 + paddq t3,t1 + movq t1,d4 + + # d1 += d0 >> 26 + mov d0,%rax + shr $26,%rax + add %rax,d1 + # h0 = d0 & 0x3ffffff + mov d0,%rbx + and $0x3ffffff,%ebx + + # d2 += d1 >> 26 + mov d1,%rax + shr $26,%rax + add %rax,d2 + # h1 = d1 & 0x3ffffff + mov d1,%rax + and $0x3ffffff,%eax + mov %eax,h1 + + # d3 += d2 >> 26 + mov d2,%rax + shr $26,%rax + add %rax,d3 + # h2 = d2 & 0x3ffffff + mov d2,%rax + and $0x3ffffff,%eax + mov %eax,h2 + + # d4 += d3 >> 26 + mov d3,%rax + shr $26,%rax + add %rax,d4 + # h3 = d3 & 0x3ffffff + mov d3,%rax + and $0x3ffffff,%eax + mov %eax,h3 + + # h0 += (d4 >> 26) * 5 + mov d4,%rax + shr $26,%rax + lea (%rax,%rax,4),%rax + add %rax,%rbx + # h4 = d4 & 0x3ffffff + mov d4,%rax + and $0x3ffffff,%eax + mov %eax,h4 + + # h1 += h0 >> 26 + mov %rbx,%rax + shr $26,%rax + add %eax,h1 + # h0 = h0 & 0x3ffffff + andl $0x3ffffff,%ebx + mov %ebx,h0 + + add $0x10,m + dec %rcx + jnz .Ldoblock + + add $0x10,%rsp + pop %r12 + pop %rbx + ret +ENDPROC(poly1305_block_sse2) + + +#define u0 0x00(%r8) +#define u1 0x04(%r8) +#define u2 0x08(%r8) +#define u3 0x0c(%r8) +#define u4 0x10(%r8) +#define hc0 %xmm0 +#define hc1 %xmm1 +#define hc2 %xmm2 +#define hc3 %xmm5 +#define hc4 %xmm6 +#define ru0 %xmm7 +#define ru1 %xmm8 +#define ru2 %xmm9 +#define ru3 %xmm10 +#define ru4 %xmm11 +#define sv1 %xmm12 +#define sv2 %xmm13 +#define sv3 %xmm14 +#define sv4 %xmm15 +#undef d0 +#define d0 %r13 + +ENTRY(poly1305_2block_sse2) + # %rdi: Accumulator h[5] + # %rsi: 16 byte input block m + # %rdx: Poly1305 key r[5] + # %rcx: Doubleblock count + # %r8: Poly1305 derived key r^2 u[5] + + # This two-block variant further improves performance by using loop + # unrolled block processing. This is more straight forward and does + # less byte shuffling, but requires a second Poly1305 key r^2: + # h = (h + m) * r => h = (h + m1) * r^2 + m2 * r + + push %rbx + push %r12 + push %r13 + + # combine r0,u0 + movd u0,ru0 + movd r0,t1 + punpcklqdq t1,ru0 + + # combine r1,u1 and s1=r1*5,v1=u1*5 + movd u1,ru1 + movd r1,t1 + punpcklqdq t1,ru1 + movdqa ru1,sv1 + pslld $2,sv1 + paddd ru1,sv1 + + # combine r2,u2 and s2=r2*5,v2=u2*5 + movd u2,ru2 + movd r2,t1 + punpcklqdq t1,ru2 + movdqa ru2,sv2 + pslld $2,sv2 + paddd ru2,sv2 + + # combine r3,u3 and s3=r3*5,v3=u3*5 + movd u3,ru3 + movd r3,t1 + punpcklqdq t1,ru3 + movdqa ru3,sv3 + pslld $2,sv3 + paddd ru3,sv3 + + # combine r4,u4 and s4=r4*5,v4=u4*5 + movd u4,ru4 + movd r4,t1 + punpcklqdq t1,ru4 + movdqa ru4,sv4 + pslld $2,sv4 + paddd ru4,sv4 + +.Ldoblock2: + # hc0 = [ m[16-19] & 0x3ffffff, h0 + m[0-3] & 0x3ffffff ] + movd 0x00(m),hc0 + movd 0x10(m),t1 + punpcklqdq t1,hc0 + pand ANMASK(%rip),hc0 + movd h0,t1 + paddd t1,hc0 + # hc1 = [ (m[19-22] >> 2) & 0x3ffffff, h1 + (m[3-6] >> 2) & 0x3ffffff ] + movd 0x03(m),hc1 + movd 0x13(m),t1 + punpcklqdq t1,hc1 + psrld $2,hc1 + pand ANMASK(%rip),hc1 + movd h1,t1 + paddd t1,hc1 + # hc2 = [ (m[22-25] >> 4) & 0x3ffffff, h2 + (m[6-9] >> 4) & 0x3ffffff ] + movd 0x06(m),hc2 + movd 0x16(m),t1 + punpcklqdq t1,hc2 + psrld $4,hc2 + pand ANMASK(%rip),hc2 + movd h2,t1 + paddd t1,hc2 + # hc3 = [ (m[25-28] >> 6) & 0x3ffffff, h3 + (m[9-12] >> 6) & 0x3ffffff ] + movd 0x09(m),hc3 + movd 0x19(m),t1 + punpcklqdq t1,hc3 + psrld $6,hc3 + pand ANMASK(%rip),hc3 + movd h3,t1 + paddd t1,hc3 + # hc4 = [ (m[28-31] >> 8) | (1<<24), h4 + (m[12-15] >> 8) | (1<<24) ] + movd 0x0c(m),hc4 + movd 0x1c(m),t1 + punpcklqdq t1,hc4 + psrld $8,hc4 + por ORMASK(%rip),hc4 + movd h4,t1 + paddd t1,hc4 + + # t1 = [ hc0[1] * r0, hc0[0] * u0 ] + movdqa ru0,t1 + pmuludq hc0,t1 + # t1 += [ hc1[1] * s4, hc1[0] * v4 ] + movdqa sv4,t2 + pmuludq hc1,t2 + paddq t2,t1 + # t1 += [ hc2[1] * s3, hc2[0] * v3 ] + movdqa sv3,t2 + pmuludq hc2,t2 + paddq t2,t1 + # t1 += [ hc3[1] * s2, hc3[0] * v2 ] + movdqa sv2,t2 + pmuludq hc3,t2 + paddq t2,t1 + # t1 += [ hc4[1] * s1, hc4[0] * v1 ] + movdqa sv1,t2 + pmuludq hc4,t2 + paddq t2,t1 + # d0 = t1[0] + t1[1] + movdqa t1,t2 + psrldq $8,t2 + paddq t2,t1 + movq t1,d0 + + # t1 = [ hc0[1] * r1, hc0[0] * u1 ] + movdqa ru1,t1 + pmuludq hc0,t1 + # t1 += [ hc1[1] * r0, hc1[0] * u0 ] + movdqa ru0,t2 + pmuludq hc1,t2 + paddq t2,t1 + # t1 += [ hc2[1] * s4, hc2[0] * v4 ] + movdqa sv4,t2 + pmuludq hc2,t2 + paddq t2,t1 + # t1 += [ hc3[1] * s3, hc3[0] * v3 ] + movdqa sv3,t2 + pmuludq hc3,t2 + paddq t2,t1 + # t1 += [ hc4[1] * s2, hc4[0] * v2 ] + movdqa sv2,t2 + pmuludq hc4,t2 + paddq t2,t1 + # d1 = t1[0] + t1[1] + movdqa t1,t2 + psrldq $8,t2 + paddq t2,t1 + movq t1,d1 + + # t1 = [ hc0[1] * r2, hc0[0] * u2 ] + movdqa ru2,t1 + pmuludq hc0,t1 + # t1 += [ hc1[1] * r1, hc1[0] * u1 ] + movdqa ru1,t2 + pmuludq hc1,t2 + paddq t2,t1 + # t1 += [ hc2[1] * r0, hc2[0] * u0 ] + movdqa ru0,t2 + pmuludq hc2,t2 + paddq t2,t1 + # t1 += [ hc3[1] * s4, hc3[0] * v4 ] + movdqa sv4,t2 + pmuludq hc3,t2 + paddq t2,t1 + # t1 += [ hc4[1] * s3, hc4[0] * v3 ] + movdqa sv3,t2 + pmuludq hc4,t2 + paddq t2,t1 + # d2 = t1[0] + t1[1] + movdqa t1,t2 + psrldq $8,t2 + paddq t2,t1 + movq t1,d2 + + # t1 = [ hc0[1] * r3, hc0[0] * u3 ] + movdqa ru3,t1 + pmuludq hc0,t1 + # t1 += [ hc1[1] * r2, hc1[0] * u2 ] + movdqa ru2,t2 + pmuludq hc1,t2 + paddq t2,t1 + # t1 += [ hc2[1] * r1, hc2[0] * u1 ] + movdqa ru1,t2 + pmuludq hc2,t2 + paddq t2,t1 + # t1 += [ hc3[1] * r0, hc3[0] * u0 ] + movdqa ru0,t2 + pmuludq hc3,t2 + paddq t2,t1 + # t1 += [ hc4[1] * s4, hc4[0] * v4 ] + movdqa sv4,t2 + pmuludq hc4,t2 + paddq t2,t1 + # d3 = t1[0] + t1[1] + movdqa t1,t2 + psrldq $8,t2 + paddq t2,t1 + movq t1,d3 + + # t1 = [ hc0[1] * r4, hc0[0] * u4 ] + movdqa ru4,t1 + pmuludq hc0,t1 + # t1 += [ hc1[1] * r3, hc1[0] * u3 ] + movdqa ru3,t2 + pmuludq hc1,t2 + paddq t2,t1 + # t1 += [ hc2[1] * r2, hc2[0] * u2 ] + movdqa ru2,t2 + pmuludq hc2,t2 + paddq t2,t1 + # t1 += [ hc3[1] * r1, hc3[0] * u1 ] + movdqa ru1,t2 + pmuludq hc3,t2 + paddq t2,t1 + # t1 += [ hc4[1] * r0, hc4[0] * u0 ] + movdqa ru0,t2 + pmuludq hc4,t2 + paddq t2,t1 + # d4 = t1[0] + t1[1] + movdqa t1,t2 + psrldq $8,t2 + paddq t2,t1 + movq t1,d4 + + # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 -> + # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small + # amount. Careful: we must not assume the carry bits 'd0 >> 26', + # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit + # integers. It's true in a single-block implementation, but not here. + + # d1 += d0 >> 26 + mov d0,%rax + shr $26,%rax + add %rax,d1 + # h0 = d0 & 0x3ffffff + mov d0,%rbx + and $0x3ffffff,%ebx + + # d2 += d1 >> 26 + mov d1,%rax + shr $26,%rax + add %rax,d2 + # h1 = d1 & 0x3ffffff + mov d1,%rax + and $0x3ffffff,%eax + mov %eax,h1 + + # d3 += d2 >> 26 + mov d2,%rax + shr $26,%rax + add %rax,d3 + # h2 = d2 & 0x3ffffff + mov d2,%rax + and $0x3ffffff,%eax + mov %eax,h2 + + # d4 += d3 >> 26 + mov d3,%rax + shr $26,%rax + add %rax,d4 + # h3 = d3 & 0x3ffffff + mov d3,%rax + and $0x3ffffff,%eax + mov %eax,h3 + + # h0 += (d4 >> 26) * 5 + mov d4,%rax + shr $26,%rax + lea (%rax,%rax,4),%rax + add %rax,%rbx + # h4 = d4 & 0x3ffffff + mov d4,%rax + and $0x3ffffff,%eax + mov %eax,h4 + + # h1 += h0 >> 26 + mov %rbx,%rax + shr $26,%rax + add %eax,h1 + # h0 = h0 & 0x3ffffff + andl $0x3ffffff,%ebx + mov %ebx,h0 + + add $0x20,m + dec %rcx + jnz .Ldoblock2 + + pop %r13 + pop %r12 + pop %rbx + ret +ENDPROC(poly1305_2block_sse2) diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c new file mode 100644 index 000000000..f012b7e28 --- /dev/null +++ b/arch/x86/crypto/poly1305_glue.c @@ -0,0 +1,205 @@ +/* + * Poly1305 authenticator algorithm, RFC7539, SIMD glue code + * + * Copyright (C) 2015 Martin Willi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <crypto/algapi.h> +#include <crypto/internal/hash.h> +#include <crypto/poly1305.h> +#include <linux/crypto.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <asm/fpu/api.h> +#include <asm/simd.h> + +struct poly1305_simd_desc_ctx { + struct poly1305_desc_ctx base; + /* derived key u set? */ + bool uset; +#ifdef CONFIG_AS_AVX2 + /* derived keys r^3, r^4 set? */ + bool wset; +#endif + /* derived Poly1305 key r^2 */ + u32 u[5]; + /* ... silently appended r^3 and r^4 when using AVX2 */ +}; + +asmlinkage void poly1305_block_sse2(u32 *h, const u8 *src, + const u32 *r, unsigned int blocks); +asmlinkage void poly1305_2block_sse2(u32 *h, const u8 *src, const u32 *r, + unsigned int blocks, const u32 *u); +#ifdef CONFIG_AS_AVX2 +asmlinkage void poly1305_4block_avx2(u32 *h, const u8 *src, const u32 *r, + unsigned int blocks, const u32 *u); +static bool poly1305_use_avx2; +#endif + +static int poly1305_simd_init(struct shash_desc *desc) +{ + struct poly1305_simd_desc_ctx *sctx = shash_desc_ctx(desc); + + sctx->uset = false; +#ifdef CONFIG_AS_AVX2 + sctx->wset = false; +#endif + + return crypto_poly1305_init(desc); +} + +static void poly1305_simd_mult(u32 *a, const u32 *b) +{ + u8 m[POLY1305_BLOCK_SIZE]; + + memset(m, 0, sizeof(m)); + /* The poly1305 block function adds a hi-bit to the accumulator which + * we don't need for key multiplication; compensate for it. */ + a[4] -= 1 << 24; + poly1305_block_sse2(a, m, b, 1); +} + +static unsigned int poly1305_simd_blocks(struct poly1305_desc_ctx *dctx, + const u8 *src, unsigned int srclen) +{ + struct poly1305_simd_desc_ctx *sctx; + unsigned int blocks, datalen; + + BUILD_BUG_ON(offsetof(struct poly1305_simd_desc_ctx, base)); + sctx = container_of(dctx, struct poly1305_simd_desc_ctx, base); + + if (unlikely(!dctx->sset)) { + datalen = crypto_poly1305_setdesckey(dctx, src, srclen); + src += srclen - datalen; + srclen = datalen; + } + +#ifdef CONFIG_AS_AVX2 + if (poly1305_use_avx2 && srclen >= POLY1305_BLOCK_SIZE * 4) { + if (unlikely(!sctx->wset)) { + if (!sctx->uset) { + memcpy(sctx->u, dctx->r, sizeof(sctx->u)); + poly1305_simd_mult(sctx->u, dctx->r); + sctx->uset = true; + } + memcpy(sctx->u + 5, sctx->u, sizeof(sctx->u)); + poly1305_simd_mult(sctx->u + 5, dctx->r); + memcpy(sctx->u + 10, sctx->u + 5, sizeof(sctx->u)); + poly1305_simd_mult(sctx->u + 10, dctx->r); + sctx->wset = true; + } + blocks = srclen / (POLY1305_BLOCK_SIZE * 4); + poly1305_4block_avx2(dctx->h, src, dctx->r, blocks, sctx->u); + src += POLY1305_BLOCK_SIZE * 4 * blocks; + srclen -= POLY1305_BLOCK_SIZE * 4 * blocks; + } +#endif + if (likely(srclen >= POLY1305_BLOCK_SIZE * 2)) { + if (unlikely(!sctx->uset)) { + memcpy(sctx->u, dctx->r, sizeof(sctx->u)); + poly1305_simd_mult(sctx->u, dctx->r); + sctx->uset = true; + } + blocks = srclen / (POLY1305_BLOCK_SIZE * 2); + poly1305_2block_sse2(dctx->h, src, dctx->r, blocks, sctx->u); + src += POLY1305_BLOCK_SIZE * 2 * blocks; + srclen -= POLY1305_BLOCK_SIZE * 2 * blocks; + } + if (srclen >= POLY1305_BLOCK_SIZE) { + poly1305_block_sse2(dctx->h, src, dctx->r, 1); + srclen -= POLY1305_BLOCK_SIZE; + } + return srclen; +} + +static int poly1305_simd_update(struct shash_desc *desc, + const u8 *src, unsigned int srclen) +{ + struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc); + unsigned int bytes; + + /* kernel_fpu_begin/end is costly, use fallback for small updates */ + if (srclen <= 288 || !may_use_simd()) + return crypto_poly1305_update(desc, src, srclen); + + kernel_fpu_begin(); + + if (unlikely(dctx->buflen)) { + bytes = min(srclen, POLY1305_BLOCK_SIZE - dctx->buflen); + memcpy(dctx->buf + dctx->buflen, src, bytes); + src += bytes; + srclen -= bytes; + dctx->buflen += bytes; + + if (dctx->buflen == POLY1305_BLOCK_SIZE) { + poly1305_simd_blocks(dctx, dctx->buf, + POLY1305_BLOCK_SIZE); + dctx->buflen = 0; + } + } + + if (likely(srclen >= POLY1305_BLOCK_SIZE)) { + bytes = poly1305_simd_blocks(dctx, src, srclen); + src += srclen - bytes; + srclen = bytes; + } + + kernel_fpu_end(); + + if (unlikely(srclen)) { + dctx->buflen = srclen; + memcpy(dctx->buf, src, srclen); + } + + return 0; +} + +static struct shash_alg alg = { + .digestsize = POLY1305_DIGEST_SIZE, + .init = poly1305_simd_init, + .update = poly1305_simd_update, + .final = crypto_poly1305_final, + .descsize = sizeof(struct poly1305_simd_desc_ctx), + .base = { + .cra_name = "poly1305", + .cra_driver_name = "poly1305-simd", + .cra_priority = 300, + .cra_blocksize = POLY1305_BLOCK_SIZE, + .cra_module = THIS_MODULE, + }, +}; + +static int __init poly1305_simd_mod_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_XMM2)) + return -ENODEV; + +#ifdef CONFIG_AS_AVX2 + poly1305_use_avx2 = boot_cpu_has(X86_FEATURE_AVX) && + boot_cpu_has(X86_FEATURE_AVX2) && + cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL); + alg.descsize = sizeof(struct poly1305_simd_desc_ctx); + if (poly1305_use_avx2) + alg.descsize += 10 * sizeof(u32); +#endif + return crypto_register_shash(&alg); +} + +static void __exit poly1305_simd_mod_exit(void) +{ + crypto_unregister_shash(&alg); +} + +module_init(poly1305_simd_mod_init); +module_exit(poly1305_simd_mod_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Martin Willi <martin@strongswan.org>"); +MODULE_DESCRIPTION("Poly1305 authenticator"); +MODULE_ALIAS_CRYPTO("poly1305"); +MODULE_ALIAS_CRYPTO("poly1305-simd"); diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S new file mode 100644 index 000000000..2925077f8 --- /dev/null +++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S @@ -0,0 +1,796 @@ +/* + * Serpent Cipher 8-way parallel algorithm (x86_64/AVX) + * + * Copyright (C) 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * Copyright © 2011-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include "glue_helper-asm-avx.S" + +.file "serpent-avx-x86_64-asm_64.S" + +.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16 +.align 16 +.Lbswap128_mask: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 +.section .rodata.cst16.xts_gf128mul_and_shl1_mask, "aM", @progbits, 16 +.align 16 +.Lxts_gf128mul_and_shl1_mask: + .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 + +.text + +#define CTX %rdi + +/********************************************************************** + 8-way AVX serpent + **********************************************************************/ +#define RA1 %xmm0 +#define RB1 %xmm1 +#define RC1 %xmm2 +#define RD1 %xmm3 +#define RE1 %xmm4 + +#define tp %xmm5 + +#define RA2 %xmm6 +#define RB2 %xmm7 +#define RC2 %xmm8 +#define RD2 %xmm9 +#define RE2 %xmm10 + +#define RNOT %xmm11 + +#define RK0 %xmm12 +#define RK1 %xmm13 +#define RK2 %xmm14 +#define RK3 %xmm15 + + +#define S0_1(x0, x1, x2, x3, x4) \ + vpor x0, x3, tp; \ + vpxor x3, x0, x0; \ + vpxor x2, x3, x4; \ + vpxor RNOT, x4, x4; \ + vpxor x1, tp, x3; \ + vpand x0, x1, x1; \ + vpxor x4, x1, x1; \ + vpxor x0, x2, x2; +#define S0_2(x0, x1, x2, x3, x4) \ + vpxor x3, x0, x0; \ + vpor x0, x4, x4; \ + vpxor x2, x0, x0; \ + vpand x1, x2, x2; \ + vpxor x2, x3, x3; \ + vpxor RNOT, x1, x1; \ + vpxor x4, x2, x2; \ + vpxor x2, x1, x1; + +#define S1_1(x0, x1, x2, x3, x4) \ + vpxor x0, x1, tp; \ + vpxor x3, x0, x0; \ + vpxor RNOT, x3, x3; \ + vpand tp, x1, x4; \ + vpor tp, x0, x0; \ + vpxor x2, x3, x3; \ + vpxor x3, x0, x0; \ + vpxor x3, tp, x1; +#define S1_2(x0, x1, x2, x3, x4) \ + vpxor x4, x3, x3; \ + vpor x4, x1, x1; \ + vpxor x2, x4, x4; \ + vpand x0, x2, x2; \ + vpxor x1, x2, x2; \ + vpor x0, x1, x1; \ + vpxor RNOT, x0, x0; \ + vpxor x2, x0, x0; \ + vpxor x1, x4, x4; + +#define S2_1(x0, x1, x2, x3, x4) \ + vpxor RNOT, x3, x3; \ + vpxor x0, x1, x1; \ + vpand x2, x0, tp; \ + vpxor x3, tp, tp; \ + vpor x0, x3, x3; \ + vpxor x1, x2, x2; \ + vpxor x1, x3, x3; \ + vpand tp, x1, x1; +#define S2_2(x0, x1, x2, x3, x4) \ + vpxor x2, tp, tp; \ + vpand x3, x2, x2; \ + vpor x1, x3, x3; \ + vpxor RNOT, tp, tp; \ + vpxor tp, x3, x3; \ + vpxor tp, x0, x4; \ + vpxor x2, tp, x0; \ + vpor x2, x1, x1; + +#define S3_1(x0, x1, x2, x3, x4) \ + vpxor x3, x1, tp; \ + vpor x0, x3, x3; \ + vpand x0, x1, x4; \ + vpxor x2, x0, x0; \ + vpxor tp, x2, x2; \ + vpand x3, tp, x1; \ + vpxor x3, x2, x2; \ + vpor x4, x0, x0; \ + vpxor x3, x4, x4; +#define S3_2(x0, x1, x2, x3, x4) \ + vpxor x0, x1, x1; \ + vpand x3, x0, x0; \ + vpand x4, x3, x3; \ + vpxor x2, x3, x3; \ + vpor x1, x4, x4; \ + vpand x1, x2, x2; \ + vpxor x3, x4, x4; \ + vpxor x3, x0, x0; \ + vpxor x2, x3, x3; + +#define S4_1(x0, x1, x2, x3, x4) \ + vpand x0, x3, tp; \ + vpxor x3, x0, x0; \ + vpxor x2, tp, tp; \ + vpor x3, x2, x2; \ + vpxor x1, x0, x0; \ + vpxor tp, x3, x4; \ + vpor x0, x2, x2; \ + vpxor x1, x2, x2; +#define S4_2(x0, x1, x2, x3, x4) \ + vpand x0, x1, x1; \ + vpxor x4, x1, x1; \ + vpand x2, x4, x4; \ + vpxor tp, x2, x2; \ + vpxor x0, x4, x4; \ + vpor x1, tp, x3; \ + vpxor RNOT, x1, x1; \ + vpxor x0, x3, x3; + +#define S5_1(x0, x1, x2, x3, x4) \ + vpor x0, x1, tp; \ + vpxor tp, x2, x2; \ + vpxor RNOT, x3, x3; \ + vpxor x0, x1, x4; \ + vpxor x2, x0, x0; \ + vpand x4, tp, x1; \ + vpor x3, x4, x4; \ + vpxor x0, x4, x4; +#define S5_2(x0, x1, x2, x3, x4) \ + vpand x3, x0, x0; \ + vpxor x3, x1, x1; \ + vpxor x2, x3, x3; \ + vpxor x1, x0, x0; \ + vpand x4, x2, x2; \ + vpxor x2, x1, x1; \ + vpand x0, x2, x2; \ + vpxor x2, x3, x3; + +#define S6_1(x0, x1, x2, x3, x4) \ + vpxor x0, x3, x3; \ + vpxor x2, x1, tp; \ + vpxor x0, x2, x2; \ + vpand x3, x0, x0; \ + vpor x3, tp, tp; \ + vpxor RNOT, x1, x4; \ + vpxor tp, x0, x0; \ + vpxor x2, tp, x1; +#define S6_2(x0, x1, x2, x3, x4) \ + vpxor x4, x3, x3; \ + vpxor x0, x4, x4; \ + vpand x0, x2, x2; \ + vpxor x1, x4, x4; \ + vpxor x3, x2, x2; \ + vpand x1, x3, x3; \ + vpxor x0, x3, x3; \ + vpxor x2, x1, x1; + +#define S7_1(x0, x1, x2, x3, x4) \ + vpxor RNOT, x1, tp; \ + vpxor RNOT, x0, x0; \ + vpand x2, tp, x1; \ + vpxor x3, x1, x1; \ + vpor tp, x3, x3; \ + vpxor x2, tp, x4; \ + vpxor x3, x2, x2; \ + vpxor x0, x3, x3; \ + vpor x1, x0, x0; +#define S7_2(x0, x1, x2, x3, x4) \ + vpand x0, x2, x2; \ + vpxor x4, x0, x0; \ + vpxor x3, x4, x4; \ + vpand x0, x3, x3; \ + vpxor x1, x4, x4; \ + vpxor x4, x2, x2; \ + vpxor x1, x3, x3; \ + vpor x0, x4, x4; \ + vpxor x1, x4, x4; + +#define SI0_1(x0, x1, x2, x3, x4) \ + vpxor x0, x1, x1; \ + vpor x1, x3, tp; \ + vpxor x1, x3, x4; \ + vpxor RNOT, x0, x0; \ + vpxor tp, x2, x2; \ + vpxor x0, tp, x3; \ + vpand x1, x0, x0; \ + vpxor x2, x0, x0; +#define SI0_2(x0, x1, x2, x3, x4) \ + vpand x3, x2, x2; \ + vpxor x4, x3, x3; \ + vpxor x3, x2, x2; \ + vpxor x3, x1, x1; \ + vpand x0, x3, x3; \ + vpxor x0, x1, x1; \ + vpxor x2, x0, x0; \ + vpxor x3, x4, x4; + +#define SI1_1(x0, x1, x2, x3, x4) \ + vpxor x3, x1, x1; \ + vpxor x2, x0, tp; \ + vpxor RNOT, x2, x2; \ + vpor x1, x0, x4; \ + vpxor x3, x4, x4; \ + vpand x1, x3, x3; \ + vpxor x2, x1, x1; \ + vpand x4, x2, x2; +#define SI1_2(x0, x1, x2, x3, x4) \ + vpxor x1, x4, x4; \ + vpor x3, x1, x1; \ + vpxor tp, x3, x3; \ + vpxor tp, x2, x2; \ + vpor x4, tp, x0; \ + vpxor x4, x2, x2; \ + vpxor x0, x1, x1; \ + vpxor x1, x4, x4; + +#define SI2_1(x0, x1, x2, x3, x4) \ + vpxor x1, x2, x2; \ + vpxor RNOT, x3, tp; \ + vpor x2, tp, tp; \ + vpxor x3, x2, x2; \ + vpxor x0, x3, x4; \ + vpxor x1, tp, x3; \ + vpor x2, x1, x1; \ + vpxor x0, x2, x2; +#define SI2_2(x0, x1, x2, x3, x4) \ + vpxor x4, x1, x1; \ + vpor x3, x4, x4; \ + vpxor x3, x2, x2; \ + vpxor x2, x4, x4; \ + vpand x1, x2, x2; \ + vpxor x3, x2, x2; \ + vpxor x4, x3, x3; \ + vpxor x0, x4, x4; + +#define SI3_1(x0, x1, x2, x3, x4) \ + vpxor x1, x2, x2; \ + vpand x2, x1, tp; \ + vpxor x0, tp, tp; \ + vpor x1, x0, x0; \ + vpxor x3, x1, x4; \ + vpxor x3, x0, x0; \ + vpor tp, x3, x3; \ + vpxor x2, tp, x1; +#define SI3_2(x0, x1, x2, x3, x4) \ + vpxor x3, x1, x1; \ + vpxor x2, x0, x0; \ + vpxor x3, x2, x2; \ + vpand x1, x3, x3; \ + vpxor x0, x1, x1; \ + vpand x2, x0, x0; \ + vpxor x3, x4, x4; \ + vpxor x0, x3, x3; \ + vpxor x1, x0, x0; + +#define SI4_1(x0, x1, x2, x3, x4) \ + vpxor x3, x2, x2; \ + vpand x1, x0, tp; \ + vpxor x2, tp, tp; \ + vpor x3, x2, x2; \ + vpxor RNOT, x0, x4; \ + vpxor tp, x1, x1; \ + vpxor x2, tp, x0; \ + vpand x4, x2, x2; +#define SI4_2(x0, x1, x2, x3, x4) \ + vpxor x0, x2, x2; \ + vpor x4, x0, x0; \ + vpxor x3, x0, x0; \ + vpand x2, x3, x3; \ + vpxor x3, x4, x4; \ + vpxor x1, x3, x3; \ + vpand x0, x1, x1; \ + vpxor x1, x4, x4; \ + vpxor x3, x0, x0; + +#define SI5_1(x0, x1, x2, x3, x4) \ + vpor x2, x1, tp; \ + vpxor x1, x2, x2; \ + vpxor x3, tp, tp; \ + vpand x1, x3, x3; \ + vpxor x3, x2, x2; \ + vpor x0, x3, x3; \ + vpxor RNOT, x0, x0; \ + vpxor x2, x3, x3; \ + vpor x0, x2, x2; +#define SI5_2(x0, x1, x2, x3, x4) \ + vpxor tp, x1, x4; \ + vpxor x4, x2, x2; \ + vpand x0, x4, x4; \ + vpxor tp, x0, x0; \ + vpxor x3, tp, x1; \ + vpand x2, x0, x0; \ + vpxor x3, x2, x2; \ + vpxor x2, x0, x0; \ + vpxor x4, x2, x2; \ + vpxor x3, x4, x4; + +#define SI6_1(x0, x1, x2, x3, x4) \ + vpxor x2, x0, x0; \ + vpand x3, x0, tp; \ + vpxor x3, x2, x2; \ + vpxor x2, tp, tp; \ + vpxor x1, x3, x3; \ + vpor x0, x2, x2; \ + vpxor x3, x2, x2; \ + vpand tp, x3, x3; +#define SI6_2(x0, x1, x2, x3, x4) \ + vpxor RNOT, tp, tp; \ + vpxor x1, x3, x3; \ + vpand x2, x1, x1; \ + vpxor tp, x0, x4; \ + vpxor x4, x3, x3; \ + vpxor x2, x4, x4; \ + vpxor x1, tp, x0; \ + vpxor x0, x2, x2; + +#define SI7_1(x0, x1, x2, x3, x4) \ + vpand x0, x3, tp; \ + vpxor x2, x0, x0; \ + vpor x3, x2, x2; \ + vpxor x1, x3, x4; \ + vpxor RNOT, x0, x0; \ + vpor tp, x1, x1; \ + vpxor x0, x4, x4; \ + vpand x2, x0, x0; \ + vpxor x1, x0, x0; +#define SI7_2(x0, x1, x2, x3, x4) \ + vpand x2, x1, x1; \ + vpxor x2, tp, x3; \ + vpxor x3, x4, x4; \ + vpand x3, x2, x2; \ + vpor x0, x3, x3; \ + vpxor x4, x1, x1; \ + vpxor x4, x3, x3; \ + vpand x0, x4, x4; \ + vpxor x2, x4, x4; + +#define get_key(i, j, t) \ + vbroadcastss (4*(i)+(j))*4(CTX), t; + +#define K2(x0, x1, x2, x3, x4, i) \ + get_key(i, 0, RK0); \ + get_key(i, 1, RK1); \ + get_key(i, 2, RK2); \ + get_key(i, 3, RK3); \ + vpxor RK0, x0 ## 1, x0 ## 1; \ + vpxor RK1, x1 ## 1, x1 ## 1; \ + vpxor RK2, x2 ## 1, x2 ## 1; \ + vpxor RK3, x3 ## 1, x3 ## 1; \ + vpxor RK0, x0 ## 2, x0 ## 2; \ + vpxor RK1, x1 ## 2, x1 ## 2; \ + vpxor RK2, x2 ## 2, x2 ## 2; \ + vpxor RK3, x3 ## 2, x3 ## 2; + +#define LK2(x0, x1, x2, x3, x4, i) \ + vpslld $13, x0 ## 1, x4 ## 1; \ + vpsrld $(32 - 13), x0 ## 1, x0 ## 1; \ + vpor x4 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x0 ## 1, x1 ## 1, x1 ## 1; \ + vpslld $3, x2 ## 1, x4 ## 1; \ + vpsrld $(32 - 3), x2 ## 1, x2 ## 1; \ + vpor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpxor x2 ## 1, x1 ## 1, x1 ## 1; \ + vpslld $13, x0 ## 2, x4 ## 2; \ + vpsrld $(32 - 13), x0 ## 2, x0 ## 2; \ + vpor x4 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x0 ## 2, x1 ## 2, x1 ## 2; \ + vpslld $3, x2 ## 2, x4 ## 2; \ + vpsrld $(32 - 3), x2 ## 2, x2 ## 2; \ + vpor x4 ## 2, x2 ## 2, x2 ## 2; \ + vpxor x2 ## 2, x1 ## 2, x1 ## 2; \ + vpslld $1, x1 ## 1, x4 ## 1; \ + vpsrld $(32 - 1), x1 ## 1, x1 ## 1; \ + vpor x4 ## 1, x1 ## 1, x1 ## 1; \ + vpslld $3, x0 ## 1, x4 ## 1; \ + vpxor x2 ## 1, x3 ## 1, x3 ## 1; \ + vpxor x4 ## 1, x3 ## 1, x3 ## 1; \ + get_key(i, 1, RK1); \ + vpslld $1, x1 ## 2, x4 ## 2; \ + vpsrld $(32 - 1), x1 ## 2, x1 ## 2; \ + vpor x4 ## 2, x1 ## 2, x1 ## 2; \ + vpslld $3, x0 ## 2, x4 ## 2; \ + vpxor x2 ## 2, x3 ## 2, x3 ## 2; \ + vpxor x4 ## 2, x3 ## 2, x3 ## 2; \ + get_key(i, 3, RK3); \ + vpslld $7, x3 ## 1, x4 ## 1; \ + vpsrld $(32 - 7), x3 ## 1, x3 ## 1; \ + vpor x4 ## 1, x3 ## 1, x3 ## 1; \ + vpslld $7, x1 ## 1, x4 ## 1; \ + vpxor x1 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x3 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x3 ## 1, x2 ## 1, x2 ## 1; \ + vpxor x4 ## 1, x2 ## 1, x2 ## 1; \ + get_key(i, 0, RK0); \ + vpslld $7, x3 ## 2, x4 ## 2; \ + vpsrld $(32 - 7), x3 ## 2, x3 ## 2; \ + vpor x4 ## 2, x3 ## 2, x3 ## 2; \ + vpslld $7, x1 ## 2, x4 ## 2; \ + vpxor x1 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x3 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x3 ## 2, x2 ## 2, x2 ## 2; \ + vpxor x4 ## 2, x2 ## 2, x2 ## 2; \ + get_key(i, 2, RK2); \ + vpxor RK1, x1 ## 1, x1 ## 1; \ + vpxor RK3, x3 ## 1, x3 ## 1; \ + vpslld $5, x0 ## 1, x4 ## 1; \ + vpsrld $(32 - 5), x0 ## 1, x0 ## 1; \ + vpor x4 ## 1, x0 ## 1, x0 ## 1; \ + vpslld $22, x2 ## 1, x4 ## 1; \ + vpsrld $(32 - 22), x2 ## 1, x2 ## 1; \ + vpor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpxor RK0, x0 ## 1, x0 ## 1; \ + vpxor RK2, x2 ## 1, x2 ## 1; \ + vpxor RK1, x1 ## 2, x1 ## 2; \ + vpxor RK3, x3 ## 2, x3 ## 2; \ + vpslld $5, x0 ## 2, x4 ## 2; \ + vpsrld $(32 - 5), x0 ## 2, x0 ## 2; \ + vpor x4 ## 2, x0 ## 2, x0 ## 2; \ + vpslld $22, x2 ## 2, x4 ## 2; \ + vpsrld $(32 - 22), x2 ## 2, x2 ## 2; \ + vpor x4 ## 2, x2 ## 2, x2 ## 2; \ + vpxor RK0, x0 ## 2, x0 ## 2; \ + vpxor RK2, x2 ## 2, x2 ## 2; + +#define KL2(x0, x1, x2, x3, x4, i) \ + vpxor RK0, x0 ## 1, x0 ## 1; \ + vpxor RK2, x2 ## 1, x2 ## 1; \ + vpsrld $5, x0 ## 1, x4 ## 1; \ + vpslld $(32 - 5), x0 ## 1, x0 ## 1; \ + vpor x4 ## 1, x0 ## 1, x0 ## 1; \ + vpxor RK3, x3 ## 1, x3 ## 1; \ + vpxor RK1, x1 ## 1, x1 ## 1; \ + vpsrld $22, x2 ## 1, x4 ## 1; \ + vpslld $(32 - 22), x2 ## 1, x2 ## 1; \ + vpor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpxor x3 ## 1, x2 ## 1, x2 ## 1; \ + vpxor RK0, x0 ## 2, x0 ## 2; \ + vpxor RK2, x2 ## 2, x2 ## 2; \ + vpsrld $5, x0 ## 2, x4 ## 2; \ + vpslld $(32 - 5), x0 ## 2, x0 ## 2; \ + vpor x4 ## 2, x0 ## 2, x0 ## 2; \ + vpxor RK3, x3 ## 2, x3 ## 2; \ + vpxor RK1, x1 ## 2, x1 ## 2; \ + vpsrld $22, x2 ## 2, x4 ## 2; \ + vpslld $(32 - 22), x2 ## 2, x2 ## 2; \ + vpor x4 ## 2, x2 ## 2, x2 ## 2; \ + vpxor x3 ## 2, x2 ## 2, x2 ## 2; \ + vpxor x3 ## 1, x0 ## 1, x0 ## 1; \ + vpslld $7, x1 ## 1, x4 ## 1; \ + vpxor x1 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpsrld $1, x1 ## 1, x4 ## 1; \ + vpslld $(32 - 1), x1 ## 1, x1 ## 1; \ + vpor x4 ## 1, x1 ## 1, x1 ## 1; \ + vpxor x3 ## 2, x0 ## 2, x0 ## 2; \ + vpslld $7, x1 ## 2, x4 ## 2; \ + vpxor x1 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x4 ## 2, x2 ## 2, x2 ## 2; \ + vpsrld $1, x1 ## 2, x4 ## 2; \ + vpslld $(32 - 1), x1 ## 2, x1 ## 2; \ + vpor x4 ## 2, x1 ## 2, x1 ## 2; \ + vpsrld $7, x3 ## 1, x4 ## 1; \ + vpslld $(32 - 7), x3 ## 1, x3 ## 1; \ + vpor x4 ## 1, x3 ## 1, x3 ## 1; \ + vpxor x0 ## 1, x1 ## 1, x1 ## 1; \ + vpslld $3, x0 ## 1, x4 ## 1; \ + vpxor x4 ## 1, x3 ## 1, x3 ## 1; \ + vpsrld $7, x3 ## 2, x4 ## 2; \ + vpslld $(32 - 7), x3 ## 2, x3 ## 2; \ + vpor x4 ## 2, x3 ## 2, x3 ## 2; \ + vpxor x0 ## 2, x1 ## 2, x1 ## 2; \ + vpslld $3, x0 ## 2, x4 ## 2; \ + vpxor x4 ## 2, x3 ## 2, x3 ## 2; \ + vpsrld $13, x0 ## 1, x4 ## 1; \ + vpslld $(32 - 13), x0 ## 1, x0 ## 1; \ + vpor x4 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x2 ## 1, x1 ## 1, x1 ## 1; \ + vpxor x2 ## 1, x3 ## 1, x3 ## 1; \ + vpsrld $3, x2 ## 1, x4 ## 1; \ + vpslld $(32 - 3), x2 ## 1, x2 ## 1; \ + vpor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpsrld $13, x0 ## 2, x4 ## 2; \ + vpslld $(32 - 13), x0 ## 2, x0 ## 2; \ + vpor x4 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x2 ## 2, x1 ## 2, x1 ## 2; \ + vpxor x2 ## 2, x3 ## 2, x3 ## 2; \ + vpsrld $3, x2 ## 2, x4 ## 2; \ + vpslld $(32 - 3), x2 ## 2, x2 ## 2; \ + vpor x4 ## 2, x2 ## 2, x2 ## 2; + +#define S(SBOX, x0, x1, x2, x3, x4) \ + SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); + +#define SP(SBOX, x0, x1, x2, x3, x4, i) \ + get_key(i, 0, RK0); \ + SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + get_key(i, 2, RK2); \ + SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + get_key(i, 3, RK3); \ + SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + get_key(i, 1, RK1); \ + SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + +#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + vpunpckldq x1, x0, t0; \ + vpunpckhdq x1, x0, t2; \ + vpunpckldq x3, x2, t1; \ + vpunpckhdq x3, x2, x3; \ + \ + vpunpcklqdq t1, t0, x0; \ + vpunpckhqdq t1, t0, x1; \ + vpunpcklqdq x3, t2, x2; \ + vpunpckhqdq x3, t2, x3; + +#define read_blocks(x0, x1, x2, x3, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) + +#define write_blocks(x0, x1, x2, x3, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) + +.align 8 +__serpent_enc_blk8_avx: + /* input: + * %rdi: ctx, CTX + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks + * output: + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks + */ + + vpcmpeqd RNOT, RNOT, RNOT; + + read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); + read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + K2(RA, RB, RC, RD, RE, 0); + S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1); + S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2); + S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3); + S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4); + S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5); + S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6); + S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7); + S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8); + S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9); + S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10); + S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11); + S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12); + S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13); + S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14); + S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15); + S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16); + S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17); + S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18); + S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19); + S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20); + S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21); + S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22); + S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23); + S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24); + S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25); + S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26); + S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27); + S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28); + S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29); + S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30); + S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31); + S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32); + + write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); + write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + ret; +ENDPROC(__serpent_enc_blk8_avx) + +.align 8 +__serpent_dec_blk8_avx: + /* input: + * %rdi: ctx, CTX + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks + * output: + * RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2: decrypted blocks + */ + + vpcmpeqd RNOT, RNOT, RNOT; + + read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); + read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + K2(RA, RB, RC, RD, RE, 32); + SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31); + SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30); + SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29); + SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28); + SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27); + SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26); + SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25); + SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24); + SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23); + SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22); + SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21); + SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20); + SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19); + SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18); + SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17); + SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16); + SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15); + SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14); + SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13); + SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12); + SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11); + SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10); + SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9); + SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8); + SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7); + SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6); + SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5); + SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4); + SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3); + SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2); + SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1); + S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0); + + write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2); + write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2); + + ret; +ENDPROC(__serpent_dec_blk8_avx) + +ENTRY(serpent_ecb_enc_8way_avx) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __serpent_enc_blk8_avx; + + store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + FRAME_END + ret; +ENDPROC(serpent_ecb_enc_8way_avx) + +ENTRY(serpent_ecb_dec_8way_avx) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __serpent_dec_blk8_avx; + + store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2); + + FRAME_END + ret; +ENDPROC(serpent_ecb_dec_8way_avx) + +ENTRY(serpent_cbc_dec_8way_avx) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __serpent_dec_blk8_avx; + + store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2); + + FRAME_END + ret; +ENDPROC(serpent_cbc_dec_8way_avx) + +ENTRY(serpent_ctr_8way_avx) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (little endian, 128bit) + */ + FRAME_BEGIN + + load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2, + RD2, RK0, RK1, RK2); + + call __serpent_enc_blk8_avx; + + store_ctr_8way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + FRAME_END + ret; +ENDPROC(serpent_ctr_8way_avx) + +ENTRY(serpent_xts_enc_8way_avx) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + FRAME_BEGIN + + /* regs <= src, dst <= IVs, regs <= regs xor IVs */ + load_xts_8way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2, + RK0, RK1, RK2, .Lxts_gf128mul_and_shl1_mask); + + call __serpent_enc_blk8_avx; + + /* dst <= regs xor IVs(in dst) */ + store_xts_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + FRAME_END + ret; +ENDPROC(serpent_xts_enc_8way_avx) + +ENTRY(serpent_xts_dec_8way_avx) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + FRAME_BEGIN + + /* regs <= src, dst <= IVs, regs <= regs xor IVs */ + load_xts_8way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2, + RK0, RK1, RK2, .Lxts_gf128mul_and_shl1_mask); + + call __serpent_dec_blk8_avx; + + /* dst <= regs xor IVs(in dst) */ + store_xts_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2); + + FRAME_END + ret; +ENDPROC(serpent_xts_dec_8way_avx) diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S new file mode 100644 index 000000000..d67888f2a --- /dev/null +++ b/arch/x86/crypto/serpent-avx2-asm_64.S @@ -0,0 +1,818 @@ +/* + * x86_64/AVX2 assembler optimized version of Serpent + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * Based on AVX assembler implementation of Serpent by: + * Copyright © 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include "glue_helper-asm-avx2.S" + +.file "serpent-avx2-asm_64.S" + +.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16 +.align 16 +.Lbswap128_mask: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 + +.section .rodata.cst16.xts_gf128mul_and_shl1_mask_0, "aM", @progbits, 16 +.align 16 +.Lxts_gf128mul_and_shl1_mask_0: + .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 + +.section .rodata.cst16.xts_gf128mul_and_shl1_mask_1, "aM", @progbits, 16 +.align 16 +.Lxts_gf128mul_and_shl1_mask_1: + .byte 0x0e, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0 + +.text + +#define CTX %rdi + +#define RNOT %ymm0 +#define tp %ymm1 + +#define RA1 %ymm2 +#define RA2 %ymm3 +#define RB1 %ymm4 +#define RB2 %ymm5 +#define RC1 %ymm6 +#define RC2 %ymm7 +#define RD1 %ymm8 +#define RD2 %ymm9 +#define RE1 %ymm10 +#define RE2 %ymm11 + +#define RK0 %ymm12 +#define RK1 %ymm13 +#define RK2 %ymm14 +#define RK3 %ymm15 + +#define RK0x %xmm12 +#define RK1x %xmm13 +#define RK2x %xmm14 +#define RK3x %xmm15 + +#define S0_1(x0, x1, x2, x3, x4) \ + vpor x0, x3, tp; \ + vpxor x3, x0, x0; \ + vpxor x2, x3, x4; \ + vpxor RNOT, x4, x4; \ + vpxor x1, tp, x3; \ + vpand x0, x1, x1; \ + vpxor x4, x1, x1; \ + vpxor x0, x2, x2; +#define S0_2(x0, x1, x2, x3, x4) \ + vpxor x3, x0, x0; \ + vpor x0, x4, x4; \ + vpxor x2, x0, x0; \ + vpand x1, x2, x2; \ + vpxor x2, x3, x3; \ + vpxor RNOT, x1, x1; \ + vpxor x4, x2, x2; \ + vpxor x2, x1, x1; + +#define S1_1(x0, x1, x2, x3, x4) \ + vpxor x0, x1, tp; \ + vpxor x3, x0, x0; \ + vpxor RNOT, x3, x3; \ + vpand tp, x1, x4; \ + vpor tp, x0, x0; \ + vpxor x2, x3, x3; \ + vpxor x3, x0, x0; \ + vpxor x3, tp, x1; +#define S1_2(x0, x1, x2, x3, x4) \ + vpxor x4, x3, x3; \ + vpor x4, x1, x1; \ + vpxor x2, x4, x4; \ + vpand x0, x2, x2; \ + vpxor x1, x2, x2; \ + vpor x0, x1, x1; \ + vpxor RNOT, x0, x0; \ + vpxor x2, x0, x0; \ + vpxor x1, x4, x4; + +#define S2_1(x0, x1, x2, x3, x4) \ + vpxor RNOT, x3, x3; \ + vpxor x0, x1, x1; \ + vpand x2, x0, tp; \ + vpxor x3, tp, tp; \ + vpor x0, x3, x3; \ + vpxor x1, x2, x2; \ + vpxor x1, x3, x3; \ + vpand tp, x1, x1; +#define S2_2(x0, x1, x2, x3, x4) \ + vpxor x2, tp, tp; \ + vpand x3, x2, x2; \ + vpor x1, x3, x3; \ + vpxor RNOT, tp, tp; \ + vpxor tp, x3, x3; \ + vpxor tp, x0, x4; \ + vpxor x2, tp, x0; \ + vpor x2, x1, x1; + +#define S3_1(x0, x1, x2, x3, x4) \ + vpxor x3, x1, tp; \ + vpor x0, x3, x3; \ + vpand x0, x1, x4; \ + vpxor x2, x0, x0; \ + vpxor tp, x2, x2; \ + vpand x3, tp, x1; \ + vpxor x3, x2, x2; \ + vpor x4, x0, x0; \ + vpxor x3, x4, x4; +#define S3_2(x0, x1, x2, x3, x4) \ + vpxor x0, x1, x1; \ + vpand x3, x0, x0; \ + vpand x4, x3, x3; \ + vpxor x2, x3, x3; \ + vpor x1, x4, x4; \ + vpand x1, x2, x2; \ + vpxor x3, x4, x4; \ + vpxor x3, x0, x0; \ + vpxor x2, x3, x3; + +#define S4_1(x0, x1, x2, x3, x4) \ + vpand x0, x3, tp; \ + vpxor x3, x0, x0; \ + vpxor x2, tp, tp; \ + vpor x3, x2, x2; \ + vpxor x1, x0, x0; \ + vpxor tp, x3, x4; \ + vpor x0, x2, x2; \ + vpxor x1, x2, x2; +#define S4_2(x0, x1, x2, x3, x4) \ + vpand x0, x1, x1; \ + vpxor x4, x1, x1; \ + vpand x2, x4, x4; \ + vpxor tp, x2, x2; \ + vpxor x0, x4, x4; \ + vpor x1, tp, x3; \ + vpxor RNOT, x1, x1; \ + vpxor x0, x3, x3; + +#define S5_1(x0, x1, x2, x3, x4) \ + vpor x0, x1, tp; \ + vpxor tp, x2, x2; \ + vpxor RNOT, x3, x3; \ + vpxor x0, x1, x4; \ + vpxor x2, x0, x0; \ + vpand x4, tp, x1; \ + vpor x3, x4, x4; \ + vpxor x0, x4, x4; +#define S5_2(x0, x1, x2, x3, x4) \ + vpand x3, x0, x0; \ + vpxor x3, x1, x1; \ + vpxor x2, x3, x3; \ + vpxor x1, x0, x0; \ + vpand x4, x2, x2; \ + vpxor x2, x1, x1; \ + vpand x0, x2, x2; \ + vpxor x2, x3, x3; + +#define S6_1(x0, x1, x2, x3, x4) \ + vpxor x0, x3, x3; \ + vpxor x2, x1, tp; \ + vpxor x0, x2, x2; \ + vpand x3, x0, x0; \ + vpor x3, tp, tp; \ + vpxor RNOT, x1, x4; \ + vpxor tp, x0, x0; \ + vpxor x2, tp, x1; +#define S6_2(x0, x1, x2, x3, x4) \ + vpxor x4, x3, x3; \ + vpxor x0, x4, x4; \ + vpand x0, x2, x2; \ + vpxor x1, x4, x4; \ + vpxor x3, x2, x2; \ + vpand x1, x3, x3; \ + vpxor x0, x3, x3; \ + vpxor x2, x1, x1; + +#define S7_1(x0, x1, x2, x3, x4) \ + vpxor RNOT, x1, tp; \ + vpxor RNOT, x0, x0; \ + vpand x2, tp, x1; \ + vpxor x3, x1, x1; \ + vpor tp, x3, x3; \ + vpxor x2, tp, x4; \ + vpxor x3, x2, x2; \ + vpxor x0, x3, x3; \ + vpor x1, x0, x0; +#define S7_2(x0, x1, x2, x3, x4) \ + vpand x0, x2, x2; \ + vpxor x4, x0, x0; \ + vpxor x3, x4, x4; \ + vpand x0, x3, x3; \ + vpxor x1, x4, x4; \ + vpxor x4, x2, x2; \ + vpxor x1, x3, x3; \ + vpor x0, x4, x4; \ + vpxor x1, x4, x4; + +#define SI0_1(x0, x1, x2, x3, x4) \ + vpxor x0, x1, x1; \ + vpor x1, x3, tp; \ + vpxor x1, x3, x4; \ + vpxor RNOT, x0, x0; \ + vpxor tp, x2, x2; \ + vpxor x0, tp, x3; \ + vpand x1, x0, x0; \ + vpxor x2, x0, x0; +#define SI0_2(x0, x1, x2, x3, x4) \ + vpand x3, x2, x2; \ + vpxor x4, x3, x3; \ + vpxor x3, x2, x2; \ + vpxor x3, x1, x1; \ + vpand x0, x3, x3; \ + vpxor x0, x1, x1; \ + vpxor x2, x0, x0; \ + vpxor x3, x4, x4; + +#define SI1_1(x0, x1, x2, x3, x4) \ + vpxor x3, x1, x1; \ + vpxor x2, x0, tp; \ + vpxor RNOT, x2, x2; \ + vpor x1, x0, x4; \ + vpxor x3, x4, x4; \ + vpand x1, x3, x3; \ + vpxor x2, x1, x1; \ + vpand x4, x2, x2; +#define SI1_2(x0, x1, x2, x3, x4) \ + vpxor x1, x4, x4; \ + vpor x3, x1, x1; \ + vpxor tp, x3, x3; \ + vpxor tp, x2, x2; \ + vpor x4, tp, x0; \ + vpxor x4, x2, x2; \ + vpxor x0, x1, x1; \ + vpxor x1, x4, x4; + +#define SI2_1(x0, x1, x2, x3, x4) \ + vpxor x1, x2, x2; \ + vpxor RNOT, x3, tp; \ + vpor x2, tp, tp; \ + vpxor x3, x2, x2; \ + vpxor x0, x3, x4; \ + vpxor x1, tp, x3; \ + vpor x2, x1, x1; \ + vpxor x0, x2, x2; +#define SI2_2(x0, x1, x2, x3, x4) \ + vpxor x4, x1, x1; \ + vpor x3, x4, x4; \ + vpxor x3, x2, x2; \ + vpxor x2, x4, x4; \ + vpand x1, x2, x2; \ + vpxor x3, x2, x2; \ + vpxor x4, x3, x3; \ + vpxor x0, x4, x4; + +#define SI3_1(x0, x1, x2, x3, x4) \ + vpxor x1, x2, x2; \ + vpand x2, x1, tp; \ + vpxor x0, tp, tp; \ + vpor x1, x0, x0; \ + vpxor x3, x1, x4; \ + vpxor x3, x0, x0; \ + vpor tp, x3, x3; \ + vpxor x2, tp, x1; +#define SI3_2(x0, x1, x2, x3, x4) \ + vpxor x3, x1, x1; \ + vpxor x2, x0, x0; \ + vpxor x3, x2, x2; \ + vpand x1, x3, x3; \ + vpxor x0, x1, x1; \ + vpand x2, x0, x0; \ + vpxor x3, x4, x4; \ + vpxor x0, x3, x3; \ + vpxor x1, x0, x0; + +#define SI4_1(x0, x1, x2, x3, x4) \ + vpxor x3, x2, x2; \ + vpand x1, x0, tp; \ + vpxor x2, tp, tp; \ + vpor x3, x2, x2; \ + vpxor RNOT, x0, x4; \ + vpxor tp, x1, x1; \ + vpxor x2, tp, x0; \ + vpand x4, x2, x2; +#define SI4_2(x0, x1, x2, x3, x4) \ + vpxor x0, x2, x2; \ + vpor x4, x0, x0; \ + vpxor x3, x0, x0; \ + vpand x2, x3, x3; \ + vpxor x3, x4, x4; \ + vpxor x1, x3, x3; \ + vpand x0, x1, x1; \ + vpxor x1, x4, x4; \ + vpxor x3, x0, x0; + +#define SI5_1(x0, x1, x2, x3, x4) \ + vpor x2, x1, tp; \ + vpxor x1, x2, x2; \ + vpxor x3, tp, tp; \ + vpand x1, x3, x3; \ + vpxor x3, x2, x2; \ + vpor x0, x3, x3; \ + vpxor RNOT, x0, x0; \ + vpxor x2, x3, x3; \ + vpor x0, x2, x2; +#define SI5_2(x0, x1, x2, x3, x4) \ + vpxor tp, x1, x4; \ + vpxor x4, x2, x2; \ + vpand x0, x4, x4; \ + vpxor tp, x0, x0; \ + vpxor x3, tp, x1; \ + vpand x2, x0, x0; \ + vpxor x3, x2, x2; \ + vpxor x2, x0, x0; \ + vpxor x4, x2, x2; \ + vpxor x3, x4, x4; + +#define SI6_1(x0, x1, x2, x3, x4) \ + vpxor x2, x0, x0; \ + vpand x3, x0, tp; \ + vpxor x3, x2, x2; \ + vpxor x2, tp, tp; \ + vpxor x1, x3, x3; \ + vpor x0, x2, x2; \ + vpxor x3, x2, x2; \ + vpand tp, x3, x3; +#define SI6_2(x0, x1, x2, x3, x4) \ + vpxor RNOT, tp, tp; \ + vpxor x1, x3, x3; \ + vpand x2, x1, x1; \ + vpxor tp, x0, x4; \ + vpxor x4, x3, x3; \ + vpxor x2, x4, x4; \ + vpxor x1, tp, x0; \ + vpxor x0, x2, x2; + +#define SI7_1(x0, x1, x2, x3, x4) \ + vpand x0, x3, tp; \ + vpxor x2, x0, x0; \ + vpor x3, x2, x2; \ + vpxor x1, x3, x4; \ + vpxor RNOT, x0, x0; \ + vpor tp, x1, x1; \ + vpxor x0, x4, x4; \ + vpand x2, x0, x0; \ + vpxor x1, x0, x0; +#define SI7_2(x0, x1, x2, x3, x4) \ + vpand x2, x1, x1; \ + vpxor x2, tp, x3; \ + vpxor x3, x4, x4; \ + vpand x3, x2, x2; \ + vpor x0, x3, x3; \ + vpxor x4, x1, x1; \ + vpxor x4, x3, x3; \ + vpand x0, x4, x4; \ + vpxor x2, x4, x4; + +#define get_key(i,j,t) \ + vpbroadcastd (4*(i)+(j))*4(CTX), t; + +#define K2(x0, x1, x2, x3, x4, i) \ + get_key(i, 0, RK0); \ + get_key(i, 1, RK1); \ + get_key(i, 2, RK2); \ + get_key(i, 3, RK3); \ + vpxor RK0, x0 ## 1, x0 ## 1; \ + vpxor RK1, x1 ## 1, x1 ## 1; \ + vpxor RK2, x2 ## 1, x2 ## 1; \ + vpxor RK3, x3 ## 1, x3 ## 1; \ + vpxor RK0, x0 ## 2, x0 ## 2; \ + vpxor RK1, x1 ## 2, x1 ## 2; \ + vpxor RK2, x2 ## 2, x2 ## 2; \ + vpxor RK3, x3 ## 2, x3 ## 2; + +#define LK2(x0, x1, x2, x3, x4, i) \ + vpslld $13, x0 ## 1, x4 ## 1; \ + vpsrld $(32 - 13), x0 ## 1, x0 ## 1; \ + vpor x4 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x0 ## 1, x1 ## 1, x1 ## 1; \ + vpslld $3, x2 ## 1, x4 ## 1; \ + vpsrld $(32 - 3), x2 ## 1, x2 ## 1; \ + vpor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpxor x2 ## 1, x1 ## 1, x1 ## 1; \ + vpslld $13, x0 ## 2, x4 ## 2; \ + vpsrld $(32 - 13), x0 ## 2, x0 ## 2; \ + vpor x4 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x0 ## 2, x1 ## 2, x1 ## 2; \ + vpslld $3, x2 ## 2, x4 ## 2; \ + vpsrld $(32 - 3), x2 ## 2, x2 ## 2; \ + vpor x4 ## 2, x2 ## 2, x2 ## 2; \ + vpxor x2 ## 2, x1 ## 2, x1 ## 2; \ + vpslld $1, x1 ## 1, x4 ## 1; \ + vpsrld $(32 - 1), x1 ## 1, x1 ## 1; \ + vpor x4 ## 1, x1 ## 1, x1 ## 1; \ + vpslld $3, x0 ## 1, x4 ## 1; \ + vpxor x2 ## 1, x3 ## 1, x3 ## 1; \ + vpxor x4 ## 1, x3 ## 1, x3 ## 1; \ + get_key(i, 1, RK1); \ + vpslld $1, x1 ## 2, x4 ## 2; \ + vpsrld $(32 - 1), x1 ## 2, x1 ## 2; \ + vpor x4 ## 2, x1 ## 2, x1 ## 2; \ + vpslld $3, x0 ## 2, x4 ## 2; \ + vpxor x2 ## 2, x3 ## 2, x3 ## 2; \ + vpxor x4 ## 2, x3 ## 2, x3 ## 2; \ + get_key(i, 3, RK3); \ + vpslld $7, x3 ## 1, x4 ## 1; \ + vpsrld $(32 - 7), x3 ## 1, x3 ## 1; \ + vpor x4 ## 1, x3 ## 1, x3 ## 1; \ + vpslld $7, x1 ## 1, x4 ## 1; \ + vpxor x1 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x3 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x3 ## 1, x2 ## 1, x2 ## 1; \ + vpxor x4 ## 1, x2 ## 1, x2 ## 1; \ + get_key(i, 0, RK0); \ + vpslld $7, x3 ## 2, x4 ## 2; \ + vpsrld $(32 - 7), x3 ## 2, x3 ## 2; \ + vpor x4 ## 2, x3 ## 2, x3 ## 2; \ + vpslld $7, x1 ## 2, x4 ## 2; \ + vpxor x1 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x3 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x3 ## 2, x2 ## 2, x2 ## 2; \ + vpxor x4 ## 2, x2 ## 2, x2 ## 2; \ + get_key(i, 2, RK2); \ + vpxor RK1, x1 ## 1, x1 ## 1; \ + vpxor RK3, x3 ## 1, x3 ## 1; \ + vpslld $5, x0 ## 1, x4 ## 1; \ + vpsrld $(32 - 5), x0 ## 1, x0 ## 1; \ + vpor x4 ## 1, x0 ## 1, x0 ## 1; \ + vpslld $22, x2 ## 1, x4 ## 1; \ + vpsrld $(32 - 22), x2 ## 1, x2 ## 1; \ + vpor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpxor RK0, x0 ## 1, x0 ## 1; \ + vpxor RK2, x2 ## 1, x2 ## 1; \ + vpxor RK1, x1 ## 2, x1 ## 2; \ + vpxor RK3, x3 ## 2, x3 ## 2; \ + vpslld $5, x0 ## 2, x4 ## 2; \ + vpsrld $(32 - 5), x0 ## 2, x0 ## 2; \ + vpor x4 ## 2, x0 ## 2, x0 ## 2; \ + vpslld $22, x2 ## 2, x4 ## 2; \ + vpsrld $(32 - 22), x2 ## 2, x2 ## 2; \ + vpor x4 ## 2, x2 ## 2, x2 ## 2; \ + vpxor RK0, x0 ## 2, x0 ## 2; \ + vpxor RK2, x2 ## 2, x2 ## 2; + +#define KL2(x0, x1, x2, x3, x4, i) \ + vpxor RK0, x0 ## 1, x0 ## 1; \ + vpxor RK2, x2 ## 1, x2 ## 1; \ + vpsrld $5, x0 ## 1, x4 ## 1; \ + vpslld $(32 - 5), x0 ## 1, x0 ## 1; \ + vpor x4 ## 1, x0 ## 1, x0 ## 1; \ + vpxor RK3, x3 ## 1, x3 ## 1; \ + vpxor RK1, x1 ## 1, x1 ## 1; \ + vpsrld $22, x2 ## 1, x4 ## 1; \ + vpslld $(32 - 22), x2 ## 1, x2 ## 1; \ + vpor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpxor x3 ## 1, x2 ## 1, x2 ## 1; \ + vpxor RK0, x0 ## 2, x0 ## 2; \ + vpxor RK2, x2 ## 2, x2 ## 2; \ + vpsrld $5, x0 ## 2, x4 ## 2; \ + vpslld $(32 - 5), x0 ## 2, x0 ## 2; \ + vpor x4 ## 2, x0 ## 2, x0 ## 2; \ + vpxor RK3, x3 ## 2, x3 ## 2; \ + vpxor RK1, x1 ## 2, x1 ## 2; \ + vpsrld $22, x2 ## 2, x4 ## 2; \ + vpslld $(32 - 22), x2 ## 2, x2 ## 2; \ + vpor x4 ## 2, x2 ## 2, x2 ## 2; \ + vpxor x3 ## 2, x2 ## 2, x2 ## 2; \ + vpxor x3 ## 1, x0 ## 1, x0 ## 1; \ + vpslld $7, x1 ## 1, x4 ## 1; \ + vpxor x1 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpsrld $1, x1 ## 1, x4 ## 1; \ + vpslld $(32 - 1), x1 ## 1, x1 ## 1; \ + vpor x4 ## 1, x1 ## 1, x1 ## 1; \ + vpxor x3 ## 2, x0 ## 2, x0 ## 2; \ + vpslld $7, x1 ## 2, x4 ## 2; \ + vpxor x1 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x4 ## 2, x2 ## 2, x2 ## 2; \ + vpsrld $1, x1 ## 2, x4 ## 2; \ + vpslld $(32 - 1), x1 ## 2, x1 ## 2; \ + vpor x4 ## 2, x1 ## 2, x1 ## 2; \ + vpsrld $7, x3 ## 1, x4 ## 1; \ + vpslld $(32 - 7), x3 ## 1, x3 ## 1; \ + vpor x4 ## 1, x3 ## 1, x3 ## 1; \ + vpxor x0 ## 1, x1 ## 1, x1 ## 1; \ + vpslld $3, x0 ## 1, x4 ## 1; \ + vpxor x4 ## 1, x3 ## 1, x3 ## 1; \ + vpsrld $7, x3 ## 2, x4 ## 2; \ + vpslld $(32 - 7), x3 ## 2, x3 ## 2; \ + vpor x4 ## 2, x3 ## 2, x3 ## 2; \ + vpxor x0 ## 2, x1 ## 2, x1 ## 2; \ + vpslld $3, x0 ## 2, x4 ## 2; \ + vpxor x4 ## 2, x3 ## 2, x3 ## 2; \ + vpsrld $13, x0 ## 1, x4 ## 1; \ + vpslld $(32 - 13), x0 ## 1, x0 ## 1; \ + vpor x4 ## 1, x0 ## 1, x0 ## 1; \ + vpxor x2 ## 1, x1 ## 1, x1 ## 1; \ + vpxor x2 ## 1, x3 ## 1, x3 ## 1; \ + vpsrld $3, x2 ## 1, x4 ## 1; \ + vpslld $(32 - 3), x2 ## 1, x2 ## 1; \ + vpor x4 ## 1, x2 ## 1, x2 ## 1; \ + vpsrld $13, x0 ## 2, x4 ## 2; \ + vpslld $(32 - 13), x0 ## 2, x0 ## 2; \ + vpor x4 ## 2, x0 ## 2, x0 ## 2; \ + vpxor x2 ## 2, x1 ## 2, x1 ## 2; \ + vpxor x2 ## 2, x3 ## 2, x3 ## 2; \ + vpsrld $3, x2 ## 2, x4 ## 2; \ + vpslld $(32 - 3), x2 ## 2, x2 ## 2; \ + vpor x4 ## 2, x2 ## 2, x2 ## 2; + +#define S(SBOX, x0, x1, x2, x3, x4) \ + SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); + +#define SP(SBOX, x0, x1, x2, x3, x4, i) \ + get_key(i, 0, RK0); \ + SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + get_key(i, 2, RK2); \ + SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + get_key(i, 3, RK3); \ + SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + get_key(i, 1, RK1); \ + SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + +#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + vpunpckldq x1, x0, t0; \ + vpunpckhdq x1, x0, t2; \ + vpunpckldq x3, x2, t1; \ + vpunpckhdq x3, x2, x3; \ + \ + vpunpcklqdq t1, t0, x0; \ + vpunpckhqdq t1, t0, x1; \ + vpunpcklqdq x3, t2, x2; \ + vpunpckhqdq x3, t2, x3; + +#define read_blocks(x0, x1, x2, x3, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) + +#define write_blocks(x0, x1, x2, x3, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) + +.align 8 +__serpent_enc_blk16: + /* input: + * %rdi: ctx, CTX + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: plaintext + * output: + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: ciphertext + */ + + vpcmpeqd RNOT, RNOT, RNOT; + + read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); + read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + K2(RA, RB, RC, RD, RE, 0); + S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1); + S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2); + S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3); + S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4); + S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5); + S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6); + S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7); + S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8); + S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9); + S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10); + S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11); + S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12); + S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13); + S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14); + S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15); + S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16); + S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17); + S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18); + S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19); + S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20); + S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21); + S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22); + S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23); + S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24); + S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25); + S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26); + S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27); + S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28); + S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29); + S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30); + S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31); + S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32); + + write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); + write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + ret; +ENDPROC(__serpent_enc_blk16) + +.align 8 +__serpent_dec_blk16: + /* input: + * %rdi: ctx, CTX + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: ciphertext + * output: + * RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2: plaintext + */ + + vpcmpeqd RNOT, RNOT, RNOT; + + read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2); + read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + K2(RA, RB, RC, RD, RE, 32); + SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31); + SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30); + SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29); + SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28); + SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27); + SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26); + SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25); + SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24); + SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23); + SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22); + SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21); + SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20); + SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19); + SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18); + SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17); + SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16); + SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15); + SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14); + SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13); + SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12); + SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11); + SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10); + SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9); + SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8); + SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7); + SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6); + SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5); + SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4); + SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3); + SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2); + SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1); + S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0); + + write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2); + write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2); + + ret; +ENDPROC(__serpent_dec_blk16) + +ENTRY(serpent_ecb_enc_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + vzeroupper; + + load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __serpent_enc_blk16; + + store_16way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(serpent_ecb_enc_16way) + +ENTRY(serpent_ecb_dec_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + vzeroupper; + + load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __serpent_dec_blk16; + + store_16way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(serpent_ecb_dec_16way) + +ENTRY(serpent_cbc_dec_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + vzeroupper; + + load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __serpent_dec_blk16; + + store_cbc_16way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2, + RK0); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(serpent_cbc_dec_16way) + +ENTRY(serpent_ctr_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (little endian, 128bit) + */ + FRAME_BEGIN + + vzeroupper; + + load_ctr_16way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2, + RD2, RK0, RK0x, RK1, RK1x, RK2, RK2x, RK3, RK3x, RNOT, + tp); + + call __serpent_enc_blk16; + + store_ctr_16way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(serpent_ctr_16way) + +ENTRY(serpent_xts_enc_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + FRAME_BEGIN + + vzeroupper; + + load_xts_16way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, + RD2, RK0, RK0x, RK1, RK1x, RK2, RK2x, RK3, RK3x, RNOT, + .Lxts_gf128mul_and_shl1_mask_0, + .Lxts_gf128mul_and_shl1_mask_1); + + call __serpent_enc_blk16; + + store_xts_16way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(serpent_xts_enc_16way) + +ENTRY(serpent_xts_dec_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + FRAME_BEGIN + + vzeroupper; + + load_xts_16way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, + RD2, RK0, RK0x, RK1, RK1x, RK2, RK2x, RK3, RK3x, RNOT, + .Lxts_gf128mul_and_shl1_mask_0, + .Lxts_gf128mul_and_shl1_mask_1); + + call __serpent_dec_blk16; + + store_xts_16way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2); + + vzeroupper; + + FRAME_END + ret; +ENDPROC(serpent_xts_dec_16way) diff --git a/arch/x86/crypto/serpent-sse2-i586-asm_32.S b/arch/x86/crypto/serpent-sse2-i586-asm_32.S new file mode 100644 index 000000000..d348f1553 --- /dev/null +++ b/arch/x86/crypto/serpent-sse2-i586-asm_32.S @@ -0,0 +1,631 @@ +/* + * Serpent Cipher 4-way parallel algorithm (i586/SSE2) + * + * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * Based on crypto/serpent.c by + * Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no> + * 2003 Herbert Valerio Riedel <hvr@gnu.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> + +.file "serpent-sse2-i586-asm_32.S" +.text + +#define arg_ctx 4 +#define arg_dst 8 +#define arg_src 12 +#define arg_xor 16 + +/********************************************************************** + 4-way SSE2 serpent + **********************************************************************/ +#define CTX %edx + +#define RA %xmm0 +#define RB %xmm1 +#define RC %xmm2 +#define RD %xmm3 +#define RE %xmm4 + +#define RT0 %xmm5 +#define RT1 %xmm6 + +#define RNOT %xmm7 + +#define get_key(i, j, t) \ + movd (4*(i)+(j))*4(CTX), t; \ + pshufd $0, t, t; + +#define K(x0, x1, x2, x3, x4, i) \ + get_key(i, 0, x4); \ + get_key(i, 1, RT0); \ + get_key(i, 2, RT1); \ + pxor x4, x0; \ + pxor RT0, x1; \ + pxor RT1, x2; \ + get_key(i, 3, x4); \ + pxor x4, x3; + +#define LK(x0, x1, x2, x3, x4, i) \ + movdqa x0, x4; \ + pslld $13, x0; \ + psrld $(32 - 13), x4; \ + por x4, x0; \ + pxor x0, x1; \ + movdqa x2, x4; \ + pslld $3, x2; \ + psrld $(32 - 3), x4; \ + por x4, x2; \ + pxor x2, x1; \ + movdqa x1, x4; \ + pslld $1, x1; \ + psrld $(32 - 1), x4; \ + por x4, x1; \ + movdqa x0, x4; \ + pslld $3, x4; \ + pxor x2, x3; \ + pxor x4, x3; \ + movdqa x3, x4; \ + pslld $7, x3; \ + psrld $(32 - 7), x4; \ + por x4, x3; \ + movdqa x1, x4; \ + pslld $7, x4; \ + pxor x1, x0; \ + pxor x3, x0; \ + pxor x3, x2; \ + pxor x4, x2; \ + movdqa x0, x4; \ + get_key(i, 1, RT0); \ + pxor RT0, x1; \ + get_key(i, 3, RT0); \ + pxor RT0, x3; \ + pslld $5, x0; \ + psrld $(32 - 5), x4; \ + por x4, x0; \ + movdqa x2, x4; \ + pslld $22, x2; \ + psrld $(32 - 22), x4; \ + por x4, x2; \ + get_key(i, 0, RT0); \ + pxor RT0, x0; \ + get_key(i, 2, RT0); \ + pxor RT0, x2; + +#define KL(x0, x1, x2, x3, x4, i) \ + K(x0, x1, x2, x3, x4, i); \ + movdqa x0, x4; \ + psrld $5, x0; \ + pslld $(32 - 5), x4; \ + por x4, x0; \ + movdqa x2, x4; \ + psrld $22, x2; \ + pslld $(32 - 22), x4; \ + por x4, x2; \ + pxor x3, x2; \ + pxor x3, x0; \ + movdqa x1, x4; \ + pslld $7, x4; \ + pxor x1, x0; \ + pxor x4, x2; \ + movdqa x1, x4; \ + psrld $1, x1; \ + pslld $(32 - 1), x4; \ + por x4, x1; \ + movdqa x3, x4; \ + psrld $7, x3; \ + pslld $(32 - 7), x4; \ + por x4, x3; \ + pxor x0, x1; \ + movdqa x0, x4; \ + pslld $3, x4; \ + pxor x4, x3; \ + movdqa x0, x4; \ + psrld $13, x0; \ + pslld $(32 - 13), x4; \ + por x4, x0; \ + pxor x2, x1; \ + pxor x2, x3; \ + movdqa x2, x4; \ + psrld $3, x2; \ + pslld $(32 - 3), x4; \ + por x4, x2; + +#define S0(x0, x1, x2, x3, x4) \ + movdqa x3, x4; \ + por x0, x3; \ + pxor x4, x0; \ + pxor x2, x4; \ + pxor RNOT, x4; \ + pxor x1, x3; \ + pand x0, x1; \ + pxor x4, x1; \ + pxor x0, x2; \ + pxor x3, x0; \ + por x0, x4; \ + pxor x2, x0; \ + pand x1, x2; \ + pxor x2, x3; \ + pxor RNOT, x1; \ + pxor x4, x2; \ + pxor x2, x1; + +#define S1(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + pxor x0, x1; \ + pxor x3, x0; \ + pxor RNOT, x3; \ + pand x1, x4; \ + por x1, x0; \ + pxor x2, x3; \ + pxor x3, x0; \ + pxor x3, x1; \ + pxor x4, x3; \ + por x4, x1; \ + pxor x2, x4; \ + pand x0, x2; \ + pxor x1, x2; \ + por x0, x1; \ + pxor RNOT, x0; \ + pxor x2, x0; \ + pxor x1, x4; + +#define S2(x0, x1, x2, x3, x4) \ + pxor RNOT, x3; \ + pxor x0, x1; \ + movdqa x0, x4; \ + pand x2, x0; \ + pxor x3, x0; \ + por x4, x3; \ + pxor x1, x2; \ + pxor x1, x3; \ + pand x0, x1; \ + pxor x2, x0; \ + pand x3, x2; \ + por x1, x3; \ + pxor RNOT, x0; \ + pxor x0, x3; \ + pxor x0, x4; \ + pxor x2, x0; \ + por x2, x1; + +#define S3(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + pxor x3, x1; \ + por x0, x3; \ + pand x0, x4; \ + pxor x2, x0; \ + pxor x1, x2; \ + pand x3, x1; \ + pxor x3, x2; \ + por x4, x0; \ + pxor x3, x4; \ + pxor x0, x1; \ + pand x3, x0; \ + pand x4, x3; \ + pxor x2, x3; \ + por x1, x4; \ + pand x1, x2; \ + pxor x3, x4; \ + pxor x3, x0; \ + pxor x2, x3; + +#define S4(x0, x1, x2, x3, x4) \ + movdqa x3, x4; \ + pand x0, x3; \ + pxor x4, x0; \ + pxor x2, x3; \ + por x4, x2; \ + pxor x1, x0; \ + pxor x3, x4; \ + por x0, x2; \ + pxor x1, x2; \ + pand x0, x1; \ + pxor x4, x1; \ + pand x2, x4; \ + pxor x3, x2; \ + pxor x0, x4; \ + por x1, x3; \ + pxor RNOT, x1; \ + pxor x0, x3; + +#define S5(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + por x0, x1; \ + pxor x1, x2; \ + pxor RNOT, x3; \ + pxor x0, x4; \ + pxor x2, x0; \ + pand x4, x1; \ + por x3, x4; \ + pxor x0, x4; \ + pand x3, x0; \ + pxor x3, x1; \ + pxor x2, x3; \ + pxor x1, x0; \ + pand x4, x2; \ + pxor x2, x1; \ + pand x0, x2; \ + pxor x2, x3; + +#define S6(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + pxor x0, x3; \ + pxor x2, x1; \ + pxor x0, x2; \ + pand x3, x0; \ + por x3, x1; \ + pxor RNOT, x4; \ + pxor x1, x0; \ + pxor x2, x1; \ + pxor x4, x3; \ + pxor x0, x4; \ + pand x0, x2; \ + pxor x1, x4; \ + pxor x3, x2; \ + pand x1, x3; \ + pxor x0, x3; \ + pxor x2, x1; + +#define S7(x0, x1, x2, x3, x4) \ + pxor RNOT, x1; \ + movdqa x1, x4; \ + pxor RNOT, x0; \ + pand x2, x1; \ + pxor x3, x1; \ + por x4, x3; \ + pxor x2, x4; \ + pxor x3, x2; \ + pxor x0, x3; \ + por x1, x0; \ + pand x0, x2; \ + pxor x4, x0; \ + pxor x3, x4; \ + pand x0, x3; \ + pxor x1, x4; \ + pxor x4, x2; \ + pxor x1, x3; \ + por x0, x4; \ + pxor x1, x4; + +#define SI0(x0, x1, x2, x3, x4) \ + movdqa x3, x4; \ + pxor x0, x1; \ + por x1, x3; \ + pxor x1, x4; \ + pxor RNOT, x0; \ + pxor x3, x2; \ + pxor x0, x3; \ + pand x1, x0; \ + pxor x2, x0; \ + pand x3, x2; \ + pxor x4, x3; \ + pxor x3, x2; \ + pxor x3, x1; \ + pand x0, x3; \ + pxor x0, x1; \ + pxor x2, x0; \ + pxor x3, x4; + +#define SI1(x0, x1, x2, x3, x4) \ + pxor x3, x1; \ + movdqa x0, x4; \ + pxor x2, x0; \ + pxor RNOT, x2; \ + por x1, x4; \ + pxor x3, x4; \ + pand x1, x3; \ + pxor x2, x1; \ + pand x4, x2; \ + pxor x1, x4; \ + por x3, x1; \ + pxor x0, x3; \ + pxor x0, x2; \ + por x4, x0; \ + pxor x4, x2; \ + pxor x0, x1; \ + pxor x1, x4; + +#define SI2(x0, x1, x2, x3, x4) \ + pxor x1, x2; \ + movdqa x3, x4; \ + pxor RNOT, x3; \ + por x2, x3; \ + pxor x4, x2; \ + pxor x0, x4; \ + pxor x1, x3; \ + por x2, x1; \ + pxor x0, x2; \ + pxor x4, x1; \ + por x3, x4; \ + pxor x3, x2; \ + pxor x2, x4; \ + pand x1, x2; \ + pxor x3, x2; \ + pxor x4, x3; \ + pxor x0, x4; + +#define SI3(x0, x1, x2, x3, x4) \ + pxor x1, x2; \ + movdqa x1, x4; \ + pand x2, x1; \ + pxor x0, x1; \ + por x4, x0; \ + pxor x3, x4; \ + pxor x3, x0; \ + por x1, x3; \ + pxor x2, x1; \ + pxor x3, x1; \ + pxor x2, x0; \ + pxor x3, x2; \ + pand x1, x3; \ + pxor x0, x1; \ + pand x2, x0; \ + pxor x3, x4; \ + pxor x0, x3; \ + pxor x1, x0; + +#define SI4(x0, x1, x2, x3, x4) \ + pxor x3, x2; \ + movdqa x0, x4; \ + pand x1, x0; \ + pxor x2, x0; \ + por x3, x2; \ + pxor RNOT, x4; \ + pxor x0, x1; \ + pxor x2, x0; \ + pand x4, x2; \ + pxor x0, x2; \ + por x4, x0; \ + pxor x3, x0; \ + pand x2, x3; \ + pxor x3, x4; \ + pxor x1, x3; \ + pand x0, x1; \ + pxor x1, x4; \ + pxor x3, x0; + +#define SI5(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + por x2, x1; \ + pxor x4, x2; \ + pxor x3, x1; \ + pand x4, x3; \ + pxor x3, x2; \ + por x0, x3; \ + pxor RNOT, x0; \ + pxor x2, x3; \ + por x0, x2; \ + pxor x1, x4; \ + pxor x4, x2; \ + pand x0, x4; \ + pxor x1, x0; \ + pxor x3, x1; \ + pand x2, x0; \ + pxor x3, x2; \ + pxor x2, x0; \ + pxor x4, x2; \ + pxor x3, x4; + +#define SI6(x0, x1, x2, x3, x4) \ + pxor x2, x0; \ + movdqa x0, x4; \ + pand x3, x0; \ + pxor x3, x2; \ + pxor x2, x0; \ + pxor x1, x3; \ + por x4, x2; \ + pxor x3, x2; \ + pand x0, x3; \ + pxor RNOT, x0; \ + pxor x1, x3; \ + pand x2, x1; \ + pxor x0, x4; \ + pxor x4, x3; \ + pxor x2, x4; \ + pxor x1, x0; \ + pxor x0, x2; + +#define SI7(x0, x1, x2, x3, x4) \ + movdqa x3, x4; \ + pand x0, x3; \ + pxor x2, x0; \ + por x4, x2; \ + pxor x1, x4; \ + pxor RNOT, x0; \ + por x3, x1; \ + pxor x0, x4; \ + pand x2, x0; \ + pxor x1, x0; \ + pand x2, x1; \ + pxor x2, x3; \ + pxor x3, x4; \ + pand x3, x2; \ + por x0, x3; \ + pxor x4, x1; \ + pxor x4, x3; \ + pand x0, x4; \ + pxor x2, x4; + +#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + movdqa x0, t2; \ + punpckldq x1, x0; \ + punpckhdq x1, t2; \ + movdqa x2, t1; \ + punpckhdq x3, x2; \ + punpckldq x3, t1; \ + movdqa x0, x1; \ + punpcklqdq t1, x0; \ + punpckhqdq t1, x1; \ + movdqa t2, x3; \ + punpcklqdq x2, t2; \ + punpckhqdq x2, x3; \ + movdqa t2, x2; + +#define read_blocks(in, x0, x1, x2, x3, t0, t1, t2) \ + movdqu (0*4*4)(in), x0; \ + movdqu (1*4*4)(in), x1; \ + movdqu (2*4*4)(in), x2; \ + movdqu (3*4*4)(in), x3; \ + \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) + +#define write_blocks(out, x0, x1, x2, x3, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + \ + movdqu x0, (0*4*4)(out); \ + movdqu x1, (1*4*4)(out); \ + movdqu x2, (2*4*4)(out); \ + movdqu x3, (3*4*4)(out); + +#define xor_blocks(out, x0, x1, x2, x3, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + \ + movdqu (0*4*4)(out), t0; \ + pxor t0, x0; \ + movdqu x0, (0*4*4)(out); \ + movdqu (1*4*4)(out), t0; \ + pxor t0, x1; \ + movdqu x1, (1*4*4)(out); \ + movdqu (2*4*4)(out), t0; \ + pxor t0, x2; \ + movdqu x2, (2*4*4)(out); \ + movdqu (3*4*4)(out), t0; \ + pxor t0, x3; \ + movdqu x3, (3*4*4)(out); + +ENTRY(__serpent_enc_blk_4way) + /* input: + * arg_ctx(%esp): ctx, CTX + * arg_dst(%esp): dst + * arg_src(%esp): src + * arg_xor(%esp): bool, if true: xor output + */ + + pcmpeqd RNOT, RNOT; + + movl arg_ctx(%esp), CTX; + + movl arg_src(%esp), %eax; + read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE); + + K(RA, RB, RC, RD, RE, 0); + S0(RA, RB, RC, RD, RE); LK(RC, RB, RD, RA, RE, 1); + S1(RC, RB, RD, RA, RE); LK(RE, RD, RA, RC, RB, 2); + S2(RE, RD, RA, RC, RB); LK(RB, RD, RE, RC, RA, 3); + S3(RB, RD, RE, RC, RA); LK(RC, RA, RD, RB, RE, 4); + S4(RC, RA, RD, RB, RE); LK(RA, RD, RB, RE, RC, 5); + S5(RA, RD, RB, RE, RC); LK(RC, RA, RD, RE, RB, 6); + S6(RC, RA, RD, RE, RB); LK(RD, RB, RA, RE, RC, 7); + S7(RD, RB, RA, RE, RC); LK(RC, RA, RE, RD, RB, 8); + S0(RC, RA, RE, RD, RB); LK(RE, RA, RD, RC, RB, 9); + S1(RE, RA, RD, RC, RB); LK(RB, RD, RC, RE, RA, 10); + S2(RB, RD, RC, RE, RA); LK(RA, RD, RB, RE, RC, 11); + S3(RA, RD, RB, RE, RC); LK(RE, RC, RD, RA, RB, 12); + S4(RE, RC, RD, RA, RB); LK(RC, RD, RA, RB, RE, 13); + S5(RC, RD, RA, RB, RE); LK(RE, RC, RD, RB, RA, 14); + S6(RE, RC, RD, RB, RA); LK(RD, RA, RC, RB, RE, 15); + S7(RD, RA, RC, RB, RE); LK(RE, RC, RB, RD, RA, 16); + S0(RE, RC, RB, RD, RA); LK(RB, RC, RD, RE, RA, 17); + S1(RB, RC, RD, RE, RA); LK(RA, RD, RE, RB, RC, 18); + S2(RA, RD, RE, RB, RC); LK(RC, RD, RA, RB, RE, 19); + S3(RC, RD, RA, RB, RE); LK(RB, RE, RD, RC, RA, 20); + S4(RB, RE, RD, RC, RA); LK(RE, RD, RC, RA, RB, 21); + S5(RE, RD, RC, RA, RB); LK(RB, RE, RD, RA, RC, 22); + S6(RB, RE, RD, RA, RC); LK(RD, RC, RE, RA, RB, 23); + S7(RD, RC, RE, RA, RB); LK(RB, RE, RA, RD, RC, 24); + S0(RB, RE, RA, RD, RC); LK(RA, RE, RD, RB, RC, 25); + S1(RA, RE, RD, RB, RC); LK(RC, RD, RB, RA, RE, 26); + S2(RC, RD, RB, RA, RE); LK(RE, RD, RC, RA, RB, 27); + S3(RE, RD, RC, RA, RB); LK(RA, RB, RD, RE, RC, 28); + S4(RA, RB, RD, RE, RC); LK(RB, RD, RE, RC, RA, 29); + S5(RB, RD, RE, RC, RA); LK(RA, RB, RD, RC, RE, 30); + S6(RA, RB, RD, RC, RE); LK(RD, RE, RB, RC, RA, 31); + S7(RD, RE, RB, RC, RA); K(RA, RB, RC, RD, RE, 32); + + movl arg_dst(%esp), %eax; + + cmpb $0, arg_xor(%esp); + jnz .L__enc_xor4; + + write_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE); + + ret; + +.L__enc_xor4: + xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE); + + ret; +ENDPROC(__serpent_enc_blk_4way) + +ENTRY(serpent_dec_blk_4way) + /* input: + * arg_ctx(%esp): ctx, CTX + * arg_dst(%esp): dst + * arg_src(%esp): src + */ + + pcmpeqd RNOT, RNOT; + + movl arg_ctx(%esp), CTX; + + movl arg_src(%esp), %eax; + read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE); + + K(RA, RB, RC, RD, RE, 32); + SI7(RA, RB, RC, RD, RE); KL(RB, RD, RA, RE, RC, 31); + SI6(RB, RD, RA, RE, RC); KL(RA, RC, RE, RB, RD, 30); + SI5(RA, RC, RE, RB, RD); KL(RC, RD, RA, RE, RB, 29); + SI4(RC, RD, RA, RE, RB); KL(RC, RA, RB, RE, RD, 28); + SI3(RC, RA, RB, RE, RD); KL(RB, RC, RD, RE, RA, 27); + SI2(RB, RC, RD, RE, RA); KL(RC, RA, RE, RD, RB, 26); + SI1(RC, RA, RE, RD, RB); KL(RB, RA, RE, RD, RC, 25); + SI0(RB, RA, RE, RD, RC); KL(RE, RC, RA, RB, RD, 24); + SI7(RE, RC, RA, RB, RD); KL(RC, RB, RE, RD, RA, 23); + SI6(RC, RB, RE, RD, RA); KL(RE, RA, RD, RC, RB, 22); + SI5(RE, RA, RD, RC, RB); KL(RA, RB, RE, RD, RC, 21); + SI4(RA, RB, RE, RD, RC); KL(RA, RE, RC, RD, RB, 20); + SI3(RA, RE, RC, RD, RB); KL(RC, RA, RB, RD, RE, 19); + SI2(RC, RA, RB, RD, RE); KL(RA, RE, RD, RB, RC, 18); + SI1(RA, RE, RD, RB, RC); KL(RC, RE, RD, RB, RA, 17); + SI0(RC, RE, RD, RB, RA); KL(RD, RA, RE, RC, RB, 16); + SI7(RD, RA, RE, RC, RB); KL(RA, RC, RD, RB, RE, 15); + SI6(RA, RC, RD, RB, RE); KL(RD, RE, RB, RA, RC, 14); + SI5(RD, RE, RB, RA, RC); KL(RE, RC, RD, RB, RA, 13); + SI4(RE, RC, RD, RB, RA); KL(RE, RD, RA, RB, RC, 12); + SI3(RE, RD, RA, RB, RC); KL(RA, RE, RC, RB, RD, 11); + SI2(RA, RE, RC, RB, RD); KL(RE, RD, RB, RC, RA, 10); + SI1(RE, RD, RB, RC, RA); KL(RA, RD, RB, RC, RE, 9); + SI0(RA, RD, RB, RC, RE); KL(RB, RE, RD, RA, RC, 8); + SI7(RB, RE, RD, RA, RC); KL(RE, RA, RB, RC, RD, 7); + SI6(RE, RA, RB, RC, RD); KL(RB, RD, RC, RE, RA, 6); + SI5(RB, RD, RC, RE, RA); KL(RD, RA, RB, RC, RE, 5); + SI4(RD, RA, RB, RC, RE); KL(RD, RB, RE, RC, RA, 4); + SI3(RD, RB, RE, RC, RA); KL(RE, RD, RA, RC, RB, 3); + SI2(RE, RD, RA, RC, RB); KL(RD, RB, RC, RA, RE, 2); + SI1(RD, RB, RC, RA, RE); KL(RE, RB, RC, RA, RD, 1); + SI0(RE, RB, RC, RA, RD); K(RC, RD, RB, RE, RA, 0); + + movl arg_dst(%esp), %eax; + write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA); + + ret; +ENDPROC(serpent_dec_blk_4way) diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S new file mode 100644 index 000000000..acc066c7c --- /dev/null +++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S @@ -0,0 +1,754 @@ +/* + * Serpent Cipher 8-way parallel algorithm (x86_64/SSE2) + * + * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * Based on crypto/serpent.c by + * Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no> + * 2003 Herbert Valerio Riedel <hvr@gnu.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> + +.file "serpent-sse2-x86_64-asm_64.S" +.text + +#define CTX %rdi + +/********************************************************************** + 8-way SSE2 serpent + **********************************************************************/ +#define RA1 %xmm0 +#define RB1 %xmm1 +#define RC1 %xmm2 +#define RD1 %xmm3 +#define RE1 %xmm4 + +#define RA2 %xmm5 +#define RB2 %xmm6 +#define RC2 %xmm7 +#define RD2 %xmm8 +#define RE2 %xmm9 + +#define RNOT %xmm10 + +#define RK0 %xmm11 +#define RK1 %xmm12 +#define RK2 %xmm13 +#define RK3 %xmm14 + +#define S0_1(x0, x1, x2, x3, x4) \ + movdqa x3, x4; \ + por x0, x3; \ + pxor x4, x0; \ + pxor x2, x4; \ + pxor RNOT, x4; \ + pxor x1, x3; \ + pand x0, x1; \ + pxor x4, x1; \ + pxor x0, x2; +#define S0_2(x0, x1, x2, x3, x4) \ + pxor x3, x0; \ + por x0, x4; \ + pxor x2, x0; \ + pand x1, x2; \ + pxor x2, x3; \ + pxor RNOT, x1; \ + pxor x4, x2; \ + pxor x2, x1; + +#define S1_1(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + pxor x0, x1; \ + pxor x3, x0; \ + pxor RNOT, x3; \ + pand x1, x4; \ + por x1, x0; \ + pxor x2, x3; \ + pxor x3, x0; \ + pxor x3, x1; +#define S1_2(x0, x1, x2, x3, x4) \ + pxor x4, x3; \ + por x4, x1; \ + pxor x2, x4; \ + pand x0, x2; \ + pxor x1, x2; \ + por x0, x1; \ + pxor RNOT, x0; \ + pxor x2, x0; \ + pxor x1, x4; + +#define S2_1(x0, x1, x2, x3, x4) \ + pxor RNOT, x3; \ + pxor x0, x1; \ + movdqa x0, x4; \ + pand x2, x0; \ + pxor x3, x0; \ + por x4, x3; \ + pxor x1, x2; \ + pxor x1, x3; \ + pand x0, x1; +#define S2_2(x0, x1, x2, x3, x4) \ + pxor x2, x0; \ + pand x3, x2; \ + por x1, x3; \ + pxor RNOT, x0; \ + pxor x0, x3; \ + pxor x0, x4; \ + pxor x2, x0; \ + por x2, x1; + +#define S3_1(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + pxor x3, x1; \ + por x0, x3; \ + pand x0, x4; \ + pxor x2, x0; \ + pxor x1, x2; \ + pand x3, x1; \ + pxor x3, x2; \ + por x4, x0; \ + pxor x3, x4; +#define S3_2(x0, x1, x2, x3, x4) \ + pxor x0, x1; \ + pand x3, x0; \ + pand x4, x3; \ + pxor x2, x3; \ + por x1, x4; \ + pand x1, x2; \ + pxor x3, x4; \ + pxor x3, x0; \ + pxor x2, x3; + +#define S4_1(x0, x1, x2, x3, x4) \ + movdqa x3, x4; \ + pand x0, x3; \ + pxor x4, x0; \ + pxor x2, x3; \ + por x4, x2; \ + pxor x1, x0; \ + pxor x3, x4; \ + por x0, x2; \ + pxor x1, x2; +#define S4_2(x0, x1, x2, x3, x4) \ + pand x0, x1; \ + pxor x4, x1; \ + pand x2, x4; \ + pxor x3, x2; \ + pxor x0, x4; \ + por x1, x3; \ + pxor RNOT, x1; \ + pxor x0, x3; + +#define S5_1(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + por x0, x1; \ + pxor x1, x2; \ + pxor RNOT, x3; \ + pxor x0, x4; \ + pxor x2, x0; \ + pand x4, x1; \ + por x3, x4; \ + pxor x0, x4; +#define S5_2(x0, x1, x2, x3, x4) \ + pand x3, x0; \ + pxor x3, x1; \ + pxor x2, x3; \ + pxor x1, x0; \ + pand x4, x2; \ + pxor x2, x1; \ + pand x0, x2; \ + pxor x2, x3; + +#define S6_1(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + pxor x0, x3; \ + pxor x2, x1; \ + pxor x0, x2; \ + pand x3, x0; \ + por x3, x1; \ + pxor RNOT, x4; \ + pxor x1, x0; \ + pxor x2, x1; +#define S6_2(x0, x1, x2, x3, x4) \ + pxor x4, x3; \ + pxor x0, x4; \ + pand x0, x2; \ + pxor x1, x4; \ + pxor x3, x2; \ + pand x1, x3; \ + pxor x0, x3; \ + pxor x2, x1; + +#define S7_1(x0, x1, x2, x3, x4) \ + pxor RNOT, x1; \ + movdqa x1, x4; \ + pxor RNOT, x0; \ + pand x2, x1; \ + pxor x3, x1; \ + por x4, x3; \ + pxor x2, x4; \ + pxor x3, x2; \ + pxor x0, x3; \ + por x1, x0; +#define S7_2(x0, x1, x2, x3, x4) \ + pand x0, x2; \ + pxor x4, x0; \ + pxor x3, x4; \ + pand x0, x3; \ + pxor x1, x4; \ + pxor x4, x2; \ + pxor x1, x3; \ + por x0, x4; \ + pxor x1, x4; + +#define SI0_1(x0, x1, x2, x3, x4) \ + movdqa x3, x4; \ + pxor x0, x1; \ + por x1, x3; \ + pxor x1, x4; \ + pxor RNOT, x0; \ + pxor x3, x2; \ + pxor x0, x3; \ + pand x1, x0; \ + pxor x2, x0; +#define SI0_2(x0, x1, x2, x3, x4) \ + pand x3, x2; \ + pxor x4, x3; \ + pxor x3, x2; \ + pxor x3, x1; \ + pand x0, x3; \ + pxor x0, x1; \ + pxor x2, x0; \ + pxor x3, x4; + +#define SI1_1(x0, x1, x2, x3, x4) \ + pxor x3, x1; \ + movdqa x0, x4; \ + pxor x2, x0; \ + pxor RNOT, x2; \ + por x1, x4; \ + pxor x3, x4; \ + pand x1, x3; \ + pxor x2, x1; \ + pand x4, x2; +#define SI1_2(x0, x1, x2, x3, x4) \ + pxor x1, x4; \ + por x3, x1; \ + pxor x0, x3; \ + pxor x0, x2; \ + por x4, x0; \ + pxor x4, x2; \ + pxor x0, x1; \ + pxor x1, x4; + +#define SI2_1(x0, x1, x2, x3, x4) \ + pxor x1, x2; \ + movdqa x3, x4; \ + pxor RNOT, x3; \ + por x2, x3; \ + pxor x4, x2; \ + pxor x0, x4; \ + pxor x1, x3; \ + por x2, x1; \ + pxor x0, x2; +#define SI2_2(x0, x1, x2, x3, x4) \ + pxor x4, x1; \ + por x3, x4; \ + pxor x3, x2; \ + pxor x2, x4; \ + pand x1, x2; \ + pxor x3, x2; \ + pxor x4, x3; \ + pxor x0, x4; + +#define SI3_1(x0, x1, x2, x3, x4) \ + pxor x1, x2; \ + movdqa x1, x4; \ + pand x2, x1; \ + pxor x0, x1; \ + por x4, x0; \ + pxor x3, x4; \ + pxor x3, x0; \ + por x1, x3; \ + pxor x2, x1; +#define SI3_2(x0, x1, x2, x3, x4) \ + pxor x3, x1; \ + pxor x2, x0; \ + pxor x3, x2; \ + pand x1, x3; \ + pxor x0, x1; \ + pand x2, x0; \ + pxor x3, x4; \ + pxor x0, x3; \ + pxor x1, x0; + +#define SI4_1(x0, x1, x2, x3, x4) \ + pxor x3, x2; \ + movdqa x0, x4; \ + pand x1, x0; \ + pxor x2, x0; \ + por x3, x2; \ + pxor RNOT, x4; \ + pxor x0, x1; \ + pxor x2, x0; \ + pand x4, x2; +#define SI4_2(x0, x1, x2, x3, x4) \ + pxor x0, x2; \ + por x4, x0; \ + pxor x3, x0; \ + pand x2, x3; \ + pxor x3, x4; \ + pxor x1, x3; \ + pand x0, x1; \ + pxor x1, x4; \ + pxor x3, x0; + +#define SI5_1(x0, x1, x2, x3, x4) \ + movdqa x1, x4; \ + por x2, x1; \ + pxor x4, x2; \ + pxor x3, x1; \ + pand x4, x3; \ + pxor x3, x2; \ + por x0, x3; \ + pxor RNOT, x0; \ + pxor x2, x3; \ + por x0, x2; +#define SI5_2(x0, x1, x2, x3, x4) \ + pxor x1, x4; \ + pxor x4, x2; \ + pand x0, x4; \ + pxor x1, x0; \ + pxor x3, x1; \ + pand x2, x0; \ + pxor x3, x2; \ + pxor x2, x0; \ + pxor x4, x2; \ + pxor x3, x4; + +#define SI6_1(x0, x1, x2, x3, x4) \ + pxor x2, x0; \ + movdqa x0, x4; \ + pand x3, x0; \ + pxor x3, x2; \ + pxor x2, x0; \ + pxor x1, x3; \ + por x4, x2; \ + pxor x3, x2; \ + pand x0, x3; +#define SI6_2(x0, x1, x2, x3, x4) \ + pxor RNOT, x0; \ + pxor x1, x3; \ + pand x2, x1; \ + pxor x0, x4; \ + pxor x4, x3; \ + pxor x2, x4; \ + pxor x1, x0; \ + pxor x0, x2; + +#define SI7_1(x0, x1, x2, x3, x4) \ + movdqa x3, x4; \ + pand x0, x3; \ + pxor x2, x0; \ + por x4, x2; \ + pxor x1, x4; \ + pxor RNOT, x0; \ + por x3, x1; \ + pxor x0, x4; \ + pand x2, x0; \ + pxor x1, x0; +#define SI7_2(x0, x1, x2, x3, x4) \ + pand x2, x1; \ + pxor x2, x3; \ + pxor x3, x4; \ + pand x3, x2; \ + por x0, x3; \ + pxor x4, x1; \ + pxor x4, x3; \ + pand x0, x4; \ + pxor x2, x4; + +#define get_key(i, j, t) \ + movd (4*(i)+(j))*4(CTX), t; \ + pshufd $0, t, t; + +#define K2(x0, x1, x2, x3, x4, i) \ + get_key(i, 0, RK0); \ + get_key(i, 1, RK1); \ + get_key(i, 2, RK2); \ + get_key(i, 3, RK3); \ + pxor RK0, x0 ## 1; \ + pxor RK1, x1 ## 1; \ + pxor RK2, x2 ## 1; \ + pxor RK3, x3 ## 1; \ + pxor RK0, x0 ## 2; \ + pxor RK1, x1 ## 2; \ + pxor RK2, x2 ## 2; \ + pxor RK3, x3 ## 2; + +#define LK2(x0, x1, x2, x3, x4, i) \ + movdqa x0 ## 1, x4 ## 1; \ + pslld $13, x0 ## 1; \ + psrld $(32 - 13), x4 ## 1; \ + por x4 ## 1, x0 ## 1; \ + pxor x0 ## 1, x1 ## 1; \ + movdqa x2 ## 1, x4 ## 1; \ + pslld $3, x2 ## 1; \ + psrld $(32 - 3), x4 ## 1; \ + por x4 ## 1, x2 ## 1; \ + pxor x2 ## 1, x1 ## 1; \ + movdqa x0 ## 2, x4 ## 2; \ + pslld $13, x0 ## 2; \ + psrld $(32 - 13), x4 ## 2; \ + por x4 ## 2, x0 ## 2; \ + pxor x0 ## 2, x1 ## 2; \ + movdqa x2 ## 2, x4 ## 2; \ + pslld $3, x2 ## 2; \ + psrld $(32 - 3), x4 ## 2; \ + por x4 ## 2, x2 ## 2; \ + pxor x2 ## 2, x1 ## 2; \ + movdqa x1 ## 1, x4 ## 1; \ + pslld $1, x1 ## 1; \ + psrld $(32 - 1), x4 ## 1; \ + por x4 ## 1, x1 ## 1; \ + movdqa x0 ## 1, x4 ## 1; \ + pslld $3, x4 ## 1; \ + pxor x2 ## 1, x3 ## 1; \ + pxor x4 ## 1, x3 ## 1; \ + movdqa x3 ## 1, x4 ## 1; \ + get_key(i, 1, RK1); \ + movdqa x1 ## 2, x4 ## 2; \ + pslld $1, x1 ## 2; \ + psrld $(32 - 1), x4 ## 2; \ + por x4 ## 2, x1 ## 2; \ + movdqa x0 ## 2, x4 ## 2; \ + pslld $3, x4 ## 2; \ + pxor x2 ## 2, x3 ## 2; \ + pxor x4 ## 2, x3 ## 2; \ + movdqa x3 ## 2, x4 ## 2; \ + get_key(i, 3, RK3); \ + pslld $7, x3 ## 1; \ + psrld $(32 - 7), x4 ## 1; \ + por x4 ## 1, x3 ## 1; \ + movdqa x1 ## 1, x4 ## 1; \ + pslld $7, x4 ## 1; \ + pxor x1 ## 1, x0 ## 1; \ + pxor x3 ## 1, x0 ## 1; \ + pxor x3 ## 1, x2 ## 1; \ + pxor x4 ## 1, x2 ## 1; \ + get_key(i, 0, RK0); \ + pslld $7, x3 ## 2; \ + psrld $(32 - 7), x4 ## 2; \ + por x4 ## 2, x3 ## 2; \ + movdqa x1 ## 2, x4 ## 2; \ + pslld $7, x4 ## 2; \ + pxor x1 ## 2, x0 ## 2; \ + pxor x3 ## 2, x0 ## 2; \ + pxor x3 ## 2, x2 ## 2; \ + pxor x4 ## 2, x2 ## 2; \ + get_key(i, 2, RK2); \ + pxor RK1, x1 ## 1; \ + pxor RK3, x3 ## 1; \ + movdqa x0 ## 1, x4 ## 1; \ + pslld $5, x0 ## 1; \ + psrld $(32 - 5), x4 ## 1; \ + por x4 ## 1, x0 ## 1; \ + movdqa x2 ## 1, x4 ## 1; \ + pslld $22, x2 ## 1; \ + psrld $(32 - 22), x4 ## 1; \ + por x4 ## 1, x2 ## 1; \ + pxor RK0, x0 ## 1; \ + pxor RK2, x2 ## 1; \ + pxor RK1, x1 ## 2; \ + pxor RK3, x3 ## 2; \ + movdqa x0 ## 2, x4 ## 2; \ + pslld $5, x0 ## 2; \ + psrld $(32 - 5), x4 ## 2; \ + por x4 ## 2, x0 ## 2; \ + movdqa x2 ## 2, x4 ## 2; \ + pslld $22, x2 ## 2; \ + psrld $(32 - 22), x4 ## 2; \ + por x4 ## 2, x2 ## 2; \ + pxor RK0, x0 ## 2; \ + pxor RK2, x2 ## 2; + +#define KL2(x0, x1, x2, x3, x4, i) \ + pxor RK0, x0 ## 1; \ + pxor RK2, x2 ## 1; \ + movdqa x0 ## 1, x4 ## 1; \ + psrld $5, x0 ## 1; \ + pslld $(32 - 5), x4 ## 1; \ + por x4 ## 1, x0 ## 1; \ + pxor RK3, x3 ## 1; \ + pxor RK1, x1 ## 1; \ + movdqa x2 ## 1, x4 ## 1; \ + psrld $22, x2 ## 1; \ + pslld $(32 - 22), x4 ## 1; \ + por x4 ## 1, x2 ## 1; \ + pxor x3 ## 1, x2 ## 1; \ + pxor RK0, x0 ## 2; \ + pxor RK2, x2 ## 2; \ + movdqa x0 ## 2, x4 ## 2; \ + psrld $5, x0 ## 2; \ + pslld $(32 - 5), x4 ## 2; \ + por x4 ## 2, x0 ## 2; \ + pxor RK3, x3 ## 2; \ + pxor RK1, x1 ## 2; \ + movdqa x2 ## 2, x4 ## 2; \ + psrld $22, x2 ## 2; \ + pslld $(32 - 22), x4 ## 2; \ + por x4 ## 2, x2 ## 2; \ + pxor x3 ## 2, x2 ## 2; \ + pxor x3 ## 1, x0 ## 1; \ + movdqa x1 ## 1, x4 ## 1; \ + pslld $7, x4 ## 1; \ + pxor x1 ## 1, x0 ## 1; \ + pxor x4 ## 1, x2 ## 1; \ + movdqa x1 ## 1, x4 ## 1; \ + psrld $1, x1 ## 1; \ + pslld $(32 - 1), x4 ## 1; \ + por x4 ## 1, x1 ## 1; \ + pxor x3 ## 2, x0 ## 2; \ + movdqa x1 ## 2, x4 ## 2; \ + pslld $7, x4 ## 2; \ + pxor x1 ## 2, x0 ## 2; \ + pxor x4 ## 2, x2 ## 2; \ + movdqa x1 ## 2, x4 ## 2; \ + psrld $1, x1 ## 2; \ + pslld $(32 - 1), x4 ## 2; \ + por x4 ## 2, x1 ## 2; \ + movdqa x3 ## 1, x4 ## 1; \ + psrld $7, x3 ## 1; \ + pslld $(32 - 7), x4 ## 1; \ + por x4 ## 1, x3 ## 1; \ + pxor x0 ## 1, x1 ## 1; \ + movdqa x0 ## 1, x4 ## 1; \ + pslld $3, x4 ## 1; \ + pxor x4 ## 1, x3 ## 1; \ + movdqa x0 ## 1, x4 ## 1; \ + movdqa x3 ## 2, x4 ## 2; \ + psrld $7, x3 ## 2; \ + pslld $(32 - 7), x4 ## 2; \ + por x4 ## 2, x3 ## 2; \ + pxor x0 ## 2, x1 ## 2; \ + movdqa x0 ## 2, x4 ## 2; \ + pslld $3, x4 ## 2; \ + pxor x4 ## 2, x3 ## 2; \ + movdqa x0 ## 2, x4 ## 2; \ + psrld $13, x0 ## 1; \ + pslld $(32 - 13), x4 ## 1; \ + por x4 ## 1, x0 ## 1; \ + pxor x2 ## 1, x1 ## 1; \ + pxor x2 ## 1, x3 ## 1; \ + movdqa x2 ## 1, x4 ## 1; \ + psrld $3, x2 ## 1; \ + pslld $(32 - 3), x4 ## 1; \ + por x4 ## 1, x2 ## 1; \ + psrld $13, x0 ## 2; \ + pslld $(32 - 13), x4 ## 2; \ + por x4 ## 2, x0 ## 2; \ + pxor x2 ## 2, x1 ## 2; \ + pxor x2 ## 2, x3 ## 2; \ + movdqa x2 ## 2, x4 ## 2; \ + psrld $3, x2 ## 2; \ + pslld $(32 - 3), x4 ## 2; \ + por x4 ## 2, x2 ## 2; + +#define S(SBOX, x0, x1, x2, x3, x4) \ + SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); + +#define SP(SBOX, x0, x1, x2, x3, x4, i) \ + get_key(i, 0, RK0); \ + SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + get_key(i, 2, RK2); \ + SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + get_key(i, 3, RK3); \ + SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \ + get_key(i, 1, RK1); \ + SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \ + +#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + movdqa x0, t2; \ + punpckldq x1, x0; \ + punpckhdq x1, t2; \ + movdqa x2, t1; \ + punpckhdq x3, x2; \ + punpckldq x3, t1; \ + movdqa x0, x1; \ + punpcklqdq t1, x0; \ + punpckhqdq t1, x1; \ + movdqa t2, x3; \ + punpcklqdq x2, t2; \ + punpckhqdq x2, x3; \ + movdqa t2, x2; + +#define read_blocks(in, x0, x1, x2, x3, t0, t1, t2) \ + movdqu (0*4*4)(in), x0; \ + movdqu (1*4*4)(in), x1; \ + movdqu (2*4*4)(in), x2; \ + movdqu (3*4*4)(in), x3; \ + \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) + +#define write_blocks(out, x0, x1, x2, x3, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + \ + movdqu x0, (0*4*4)(out); \ + movdqu x1, (1*4*4)(out); \ + movdqu x2, (2*4*4)(out); \ + movdqu x3, (3*4*4)(out); + +#define xor_blocks(out, x0, x1, x2, x3, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + \ + movdqu (0*4*4)(out), t0; \ + pxor t0, x0; \ + movdqu x0, (0*4*4)(out); \ + movdqu (1*4*4)(out), t0; \ + pxor t0, x1; \ + movdqu x1, (1*4*4)(out); \ + movdqu (2*4*4)(out), t0; \ + pxor t0, x2; \ + movdqu x2, (2*4*4)(out); \ + movdqu (3*4*4)(out), t0; \ + pxor t0, x3; \ + movdqu x3, (3*4*4)(out); + +ENTRY(__serpent_enc_blk_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: bool, if true: xor output + */ + + pcmpeqd RNOT, RNOT; + + leaq (4*4*4)(%rdx), %rax; + read_blocks(%rdx, RA1, RB1, RC1, RD1, RK0, RK1, RK2); + read_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + K2(RA, RB, RC, RD, RE, 0); + S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1); + S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2); + S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3); + S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4); + S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5); + S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6); + S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7); + S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8); + S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9); + S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10); + S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11); + S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12); + S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13); + S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14); + S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15); + S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16); + S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17); + S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18); + S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19); + S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20); + S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21); + S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22); + S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23); + S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24); + S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25); + S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26); + S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27); + S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28); + S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29); + S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30); + S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31); + S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32); + + leaq (4*4*4)(%rsi), %rax; + + testb %cl, %cl; + jnz .L__enc_xor8; + + write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2); + write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + ret; + +.L__enc_xor8: + xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2); + xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + ret; +ENDPROC(__serpent_enc_blk_8way) + +ENTRY(serpent_dec_blk_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + + pcmpeqd RNOT, RNOT; + + leaq (4*4*4)(%rdx), %rax; + read_blocks(%rdx, RA1, RB1, RC1, RD1, RK0, RK1, RK2); + read_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2); + + K2(RA, RB, RC, RD, RE, 32); + SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31); + SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30); + SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29); + SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28); + SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27); + SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26); + SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25); + SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24); + SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23); + SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22); + SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21); + SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20); + SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19); + SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18); + SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17); + SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16); + SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15); + SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14); + SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13); + SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12); + SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11); + SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10); + SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9); + SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8); + SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7); + SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6); + SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5); + SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4); + SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3); + SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2); + SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1); + S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0); + + leaq (4*4*4)(%rsi), %rax; + write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2); + write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2); + + ret; +ENDPROC(serpent_dec_blk_8way) diff --git a/arch/x86/crypto/serpent_avx2_glue.c b/arch/x86/crypto/serpent_avx2_glue.c new file mode 100644 index 000000000..03347b16a --- /dev/null +++ b/arch/x86/crypto/serpent_avx2_glue.c @@ -0,0 +1,281 @@ +/* + * Glue Code for x86_64/AVX2 assembler optimized version of Serpent + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/crypto.h> +#include <linux/err.h> +#include <crypto/algapi.h> +#include <crypto/internal/simd.h> +#include <crypto/serpent.h> +#include <crypto/xts.h> +#include <asm/crypto/glue_helper.h> +#include <asm/crypto/serpent-avx.h> + +#define SERPENT_AVX2_PARALLEL_BLOCKS 16 + +/* 16-way AVX2 parallel cipher functions */ +asmlinkage void serpent_ecb_enc_16way(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void serpent_ecb_dec_16way(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void serpent_cbc_dec_16way(void *ctx, u128 *dst, const u128 *src); + +asmlinkage void serpent_ctr_16way(void *ctx, u128 *dst, const u128 *src, + le128 *iv); +asmlinkage void serpent_xts_enc_16way(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +asmlinkage void serpent_xts_dec_16way(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +static int serpent_setkey_skcipher(struct crypto_skcipher *tfm, + const u8 *key, unsigned int keylen) +{ + return __serpent_setkey(crypto_skcipher_ctx(tfm), key, keylen); +} + +static const struct common_glue_ctx serpent_enc = { + .num_funcs = 3, + .fpu_blocks_limit = 8, + + .funcs = { { + .num_blocks = 16, + .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_enc_16way) } + }, { + .num_blocks = 8, + .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_enc_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_encrypt) } + } } +}; + +static const struct common_glue_ctx serpent_ctr = { + .num_funcs = 3, + .fpu_blocks_limit = 8, + + .funcs = { { + .num_blocks = 16, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_ctr_16way) } + }, { + .num_blocks = 8, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_ctr_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(__serpent_crypt_ctr) } + } } +}; + +static const struct common_glue_ctx serpent_enc_xts = { + .num_funcs = 3, + .fpu_blocks_limit = 8, + + .funcs = { { + .num_blocks = 16, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc_16way) } + }, { + .num_blocks = 8, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc) } + } } +}; + +static const struct common_glue_ctx serpent_dec = { + .num_funcs = 3, + .fpu_blocks_limit = 8, + + .funcs = { { + .num_blocks = 16, + .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_dec_16way) } + }, { + .num_blocks = 8, + .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_dec_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_decrypt) } + } } +}; + +static const struct common_glue_ctx serpent_dec_cbc = { + .num_funcs = 3, + .fpu_blocks_limit = 8, + + .funcs = { { + .num_blocks = 16, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_cbc_dec_16way) } + }, { + .num_blocks = 8, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_cbc_dec_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__serpent_decrypt) } + } } +}; + +static const struct common_glue_ctx serpent_dec_xts = { + .num_funcs = 3, + .fpu_blocks_limit = 8, + + .funcs = { { + .num_blocks = 16, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec_16way) } + }, { + .num_blocks = 8, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec) } + } } +}; + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&serpent_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&serpent_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__serpent_encrypt), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&serpent_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&serpent_ctr, req); +} + +static int xts_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&serpent_enc_xts, req, + XTS_TWEAK_CAST(__serpent_encrypt), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static int xts_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&serpent_dec_xts, req, + XTS_TWEAK_CAST(__serpent_encrypt), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static struct skcipher_alg serpent_algs[] = { + { + .base.cra_name = "__ecb(serpent)", + .base.cra_driver_name = "__ecb-serpent-avx2", + .base.cra_priority = 600, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = SERPENT_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "__cbc(serpent)", + .base.cra_driver_name = "__cbc-serpent-avx2", + .base.cra_priority = 600, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = SERPENT_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .ivsize = SERPENT_BLOCK_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "__ctr(serpent)", + .base.cra_driver_name = "__ctr-serpent-avx2", + .base.cra_priority = 600, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .ivsize = SERPENT_BLOCK_SIZE, + .chunksize = SERPENT_BLOCK_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, { + .base.cra_name = "__xts(serpent)", + .base.cra_driver_name = "__xts-serpent-avx2", + .base.cra_priority = 600, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = SERPENT_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct serpent_xts_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = 2 * SERPENT_MIN_KEY_SIZE, + .max_keysize = 2 * SERPENT_MAX_KEY_SIZE, + .ivsize = SERPENT_BLOCK_SIZE, + .setkey = xts_serpent_setkey, + .encrypt = xts_encrypt, + .decrypt = xts_decrypt, + }, +}; + +static struct simd_skcipher_alg *serpent_simd_algs[ARRAY_SIZE(serpent_algs)]; + +static int __init init(void) +{ + const char *feature_name; + + if (!boot_cpu_has(X86_FEATURE_AVX2) || !boot_cpu_has(X86_FEATURE_OSXSAVE)) { + pr_info("AVX2 instructions are not detected.\n"); + return -ENODEV; + } + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, + &feature_name)) { + pr_info("CPU feature '%s' is not supported.\n", feature_name); + return -ENODEV; + } + + return simd_register_skciphers_compat(serpent_algs, + ARRAY_SIZE(serpent_algs), + serpent_simd_algs); +} + +static void __exit fini(void) +{ + simd_unregister_skciphers(serpent_algs, ARRAY_SIZE(serpent_algs), + serpent_simd_algs); +} + +module_init(init); +module_exit(fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Serpent Cipher Algorithm, AVX2 optimized"); +MODULE_ALIAS_CRYPTO("serpent"); +MODULE_ALIAS_CRYPTO("serpent-asm"); diff --git a/arch/x86/crypto/serpent_avx_glue.c b/arch/x86/crypto/serpent_avx_glue.c new file mode 100644 index 000000000..458567ecf --- /dev/null +++ b/arch/x86/crypto/serpent_avx_glue.c @@ -0,0 +1,326 @@ +/* + * Glue Code for AVX assembler versions of Serpent Cipher + * + * Copyright (C) 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * Copyright © 2011-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/crypto.h> +#include <linux/err.h> +#include <crypto/algapi.h> +#include <crypto/internal/simd.h> +#include <crypto/serpent.h> +#include <crypto/xts.h> +#include <asm/crypto/glue_helper.h> +#include <asm/crypto/serpent-avx.h> + +/* 8-way parallel cipher functions */ +asmlinkage void serpent_ecb_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(serpent_ecb_enc_8way_avx); + +asmlinkage void serpent_ecb_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(serpent_ecb_dec_8way_avx); + +asmlinkage void serpent_cbc_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(serpent_cbc_dec_8way_avx); + +asmlinkage void serpent_ctr_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(serpent_ctr_8way_avx); + +asmlinkage void serpent_xts_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(serpent_xts_enc_8way_avx); + +asmlinkage void serpent_xts_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +EXPORT_SYMBOL_GPL(serpent_xts_dec_8way_avx); + +void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + be128 ctrblk; + + le128_to_be128(&ctrblk, iv); + le128_inc(iv); + + __serpent_encrypt(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk); + u128_xor(dst, src, (u128 *)&ctrblk); +} +EXPORT_SYMBOL_GPL(__serpent_crypt_ctr); + +void serpent_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(__serpent_encrypt)); +} +EXPORT_SYMBOL_GPL(serpent_xts_enc); + +void serpent_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(__serpent_decrypt)); +} +EXPORT_SYMBOL_GPL(serpent_xts_dec); + +static int serpent_setkey_skcipher(struct crypto_skcipher *tfm, + const u8 *key, unsigned int keylen) +{ + return __serpent_setkey(crypto_skcipher_ctx(tfm), key, keylen); +} + +int xts_serpent_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ + struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + int err; + + err = xts_verify_key(tfm, key, keylen); + if (err) + return err; + + /* first half of xts-key is for crypt */ + err = __serpent_setkey(&ctx->crypt_ctx, key, keylen / 2); + if (err) + return err; + + /* second half of xts-key is for tweak */ + return __serpent_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2); +} +EXPORT_SYMBOL_GPL(xts_serpent_setkey); + +static const struct common_glue_ctx serpent_enc = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_enc_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_encrypt) } + } } +}; + +static const struct common_glue_ctx serpent_ctr = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_ctr_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(__serpent_crypt_ctr) } + } } +}; + +static const struct common_glue_ctx serpent_enc_xts = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc) } + } } +}; + +static const struct common_glue_ctx serpent_dec = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_dec_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_decrypt) } + } } +}; + +static const struct common_glue_ctx serpent_dec_cbc = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_cbc_dec_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__serpent_decrypt) } + } } +}; + +static const struct common_glue_ctx serpent_dec_xts = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec_8way_avx) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec) } + } } +}; + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&serpent_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&serpent_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__serpent_encrypt), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&serpent_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&serpent_ctr, req); +} + +static int xts_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&serpent_enc_xts, req, + XTS_TWEAK_CAST(__serpent_encrypt), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static int xts_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&serpent_dec_xts, req, + XTS_TWEAK_CAST(__serpent_encrypt), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static struct skcipher_alg serpent_algs[] = { + { + .base.cra_name = "__ecb(serpent)", + .base.cra_driver_name = "__ecb-serpent-avx", + .base.cra_priority = 500, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = SERPENT_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "__cbc(serpent)", + .base.cra_driver_name = "__cbc-serpent-avx", + .base.cra_priority = 500, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = SERPENT_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .ivsize = SERPENT_BLOCK_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "__ctr(serpent)", + .base.cra_driver_name = "__ctr-serpent-avx", + .base.cra_priority = 500, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .ivsize = SERPENT_BLOCK_SIZE, + .chunksize = SERPENT_BLOCK_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, { + .base.cra_name = "__xts(serpent)", + .base.cra_driver_name = "__xts-serpent-avx", + .base.cra_priority = 500, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = SERPENT_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct serpent_xts_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = 2 * SERPENT_MIN_KEY_SIZE, + .max_keysize = 2 * SERPENT_MAX_KEY_SIZE, + .ivsize = SERPENT_BLOCK_SIZE, + .setkey = xts_serpent_setkey, + .encrypt = xts_encrypt, + .decrypt = xts_decrypt, + }, +}; + +static struct simd_skcipher_alg *serpent_simd_algs[ARRAY_SIZE(serpent_algs)]; + +static int __init serpent_init(void) +{ + const char *feature_name; + + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, + &feature_name)) { + pr_info("CPU feature '%s' is not supported.\n", feature_name); + return -ENODEV; + } + + return simd_register_skciphers_compat(serpent_algs, + ARRAY_SIZE(serpent_algs), + serpent_simd_algs); +} + +static void __exit serpent_exit(void) +{ + simd_unregister_skciphers(serpent_algs, ARRAY_SIZE(serpent_algs), + serpent_simd_algs); +} + +module_init(serpent_init); +module_exit(serpent_exit); + +MODULE_DESCRIPTION("Serpent Cipher Algorithm, AVX optimized"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_CRYPTO("serpent"); diff --git a/arch/x86/crypto/serpent_sse2_glue.c b/arch/x86/crypto/serpent_sse2_glue.c new file mode 100644 index 000000000..3dafe1375 --- /dev/null +++ b/arch/x86/crypto/serpent_sse2_glue.c @@ -0,0 +1,240 @@ +/* + * Glue Code for SSE2 assembler versions of Serpent Cipher + * + * Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * Glue code based on aesni-intel_glue.c by: + * Copyright (C) 2008, Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * + * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by: + * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> + * CTR part based on code (crypto/ctr.c) by: + * (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/crypto.h> +#include <linux/err.h> +#include <crypto/algapi.h> +#include <crypto/b128ops.h> +#include <crypto/internal/simd.h> +#include <crypto/serpent.h> +#include <asm/crypto/serpent-sse2.h> +#include <asm/crypto/glue_helper.h> + +static int serpent_setkey_skcipher(struct crypto_skcipher *tfm, + const u8 *key, unsigned int keylen) +{ + return __serpent_setkey(crypto_skcipher_ctx(tfm), key, keylen); +} + +static void serpent_decrypt_cbc_xway(void *ctx, u128 *dst, const u128 *src) +{ + u128 ivs[SERPENT_PARALLEL_BLOCKS - 1]; + unsigned int j; + + for (j = 0; j < SERPENT_PARALLEL_BLOCKS - 1; j++) + ivs[j] = src[j]; + + serpent_dec_blk_xway(ctx, (u8 *)dst, (u8 *)src); + + for (j = 0; j < SERPENT_PARALLEL_BLOCKS - 1; j++) + u128_xor(dst + (j + 1), dst + (j + 1), ivs + j); +} + +static void serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + be128 ctrblk; + + le128_to_be128(&ctrblk, iv); + le128_inc(iv); + + __serpent_encrypt(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk); + u128_xor(dst, src, (u128 *)&ctrblk); +} + +static void serpent_crypt_ctr_xway(void *ctx, u128 *dst, const u128 *src, + le128 *iv) +{ + be128 ctrblks[SERPENT_PARALLEL_BLOCKS]; + unsigned int i; + + for (i = 0; i < SERPENT_PARALLEL_BLOCKS; i++) { + if (dst != src) + dst[i] = src[i]; + + le128_to_be128(&ctrblks[i], iv); + le128_inc(iv); + } + + serpent_enc_blk_xway_xor(ctx, (u8 *)dst, (u8 *)ctrblks); +} + +static const struct common_glue_ctx serpent_enc = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_enc_blk_xway) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_encrypt) } + } } +}; + +static const struct common_glue_ctx serpent_ctr = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_crypt_ctr_xway) } + }, { + .num_blocks = 1, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_crypt_ctr) } + } } +}; + +static const struct common_glue_ctx serpent_dec = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_dec_blk_xway) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_decrypt) } + } } +}; + +static const struct common_glue_ctx serpent_dec_cbc = { + .num_funcs = 2, + .fpu_blocks_limit = SERPENT_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = SERPENT_PARALLEL_BLOCKS, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_decrypt_cbc_xway) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__serpent_decrypt) } + } } +}; + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&serpent_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&serpent_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__serpent_encrypt), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&serpent_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&serpent_ctr, req); +} + +static struct skcipher_alg serpent_algs[] = { + { + .base.cra_name = "__ecb(serpent)", + .base.cra_driver_name = "__ecb-serpent-sse2", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = SERPENT_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "__cbc(serpent)", + .base.cra_driver_name = "__cbc-serpent-sse2", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = SERPENT_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .ivsize = SERPENT_BLOCK_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "__ctr(serpent)", + .base.cra_driver_name = "__ctr-serpent-sse2", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct serpent_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = SERPENT_MIN_KEY_SIZE, + .max_keysize = SERPENT_MAX_KEY_SIZE, + .ivsize = SERPENT_BLOCK_SIZE, + .chunksize = SERPENT_BLOCK_SIZE, + .setkey = serpent_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, +}; + +static struct simd_skcipher_alg *serpent_simd_algs[ARRAY_SIZE(serpent_algs)]; + +static int __init serpent_sse2_init(void) +{ + if (!boot_cpu_has(X86_FEATURE_XMM2)) { + printk(KERN_INFO "SSE2 instructions are not detected.\n"); + return -ENODEV; + } + + return simd_register_skciphers_compat(serpent_algs, + ARRAY_SIZE(serpent_algs), + serpent_simd_algs); +} + +static void __exit serpent_sse2_exit(void) +{ + simd_unregister_skciphers(serpent_algs, ARRAY_SIZE(serpent_algs), + serpent_simd_algs); +} + +module_init(serpent_sse2_init); +module_exit(serpent_sse2_exit); + +MODULE_DESCRIPTION("Serpent Cipher Algorithm, SSE2 optimized"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_CRYPTO("serpent"); diff --git a/arch/x86/crypto/sha1-mb/Makefile b/arch/x86/crypto/sha1-mb/Makefile new file mode 100644 index 000000000..815ded3ba --- /dev/null +++ b/arch/x86/crypto/sha1-mb/Makefile @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Arch-specific CryptoAPI modules. +# + +OBJECT_FILES_NON_STANDARD := y + +avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ + $(comma)4)$(comma)%ymm2,yes,no) +ifeq ($(avx2_supported),yes) + obj-$(CONFIG_CRYPTO_SHA1_MB) += sha1-mb.o + sha1-mb-y := sha1_mb.o sha1_mb_mgr_flush_avx2.o \ + sha1_mb_mgr_init_avx2.o sha1_mb_mgr_submit_avx2.o sha1_x8_avx2.o +endif diff --git a/arch/x86/crypto/sha1-mb/sha1_mb.c b/arch/x86/crypto/sha1-mb/sha1_mb.c new file mode 100644 index 000000000..b93805664 --- /dev/null +++ b/arch/x86/crypto/sha1-mb/sha1_mb.c @@ -0,0 +1,1011 @@ +/* + * Multi buffer SHA1 algorithm Glue Code + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/cryptohash.h> +#include <linux/types.h> +#include <linux/list.h> +#include <crypto/scatterwalk.h> +#include <crypto/sha.h> +#include <crypto/mcryptd.h> +#include <crypto/crypto_wq.h> +#include <asm/byteorder.h> +#include <linux/hardirq.h> +#include <asm/fpu/api.h> +#include "sha1_mb_ctx.h" + +#define FLUSH_INTERVAL 1000 /* in usec */ + +static struct mcryptd_alg_state sha1_mb_alg_state; + +struct sha1_mb_ctx { + struct mcryptd_ahash *mcryptd_tfm; +}; + +static inline struct mcryptd_hash_request_ctx + *cast_hash_to_mcryptd_ctx(struct sha1_hash_ctx *hash_ctx) +{ + struct ahash_request *areq; + + areq = container_of((void *) hash_ctx, struct ahash_request, __ctx); + return container_of(areq, struct mcryptd_hash_request_ctx, areq); +} + +static inline struct ahash_request + *cast_mcryptd_ctx_to_req(struct mcryptd_hash_request_ctx *ctx) +{ + return container_of((void *) ctx, struct ahash_request, __ctx); +} + +static void req_ctx_init(struct mcryptd_hash_request_ctx *rctx, + struct ahash_request *areq) +{ + rctx->flag = HASH_UPDATE; +} + +static asmlinkage void (*sha1_job_mgr_init)(struct sha1_mb_mgr *state); +static asmlinkage struct job_sha1* (*sha1_job_mgr_submit) + (struct sha1_mb_mgr *state, struct job_sha1 *job); +static asmlinkage struct job_sha1* (*sha1_job_mgr_flush) + (struct sha1_mb_mgr *state); +static asmlinkage struct job_sha1* (*sha1_job_mgr_get_comp_job) + (struct sha1_mb_mgr *state); + +static inline uint32_t sha1_pad(uint8_t padblock[SHA1_BLOCK_SIZE * 2], + uint64_t total_len) +{ + uint32_t i = total_len & (SHA1_BLOCK_SIZE - 1); + + memset(&padblock[i], 0, SHA1_BLOCK_SIZE); + padblock[i] = 0x80; + + i += ((SHA1_BLOCK_SIZE - 1) & + (0 - (total_len + SHA1_PADLENGTHFIELD_SIZE + 1))) + + 1 + SHA1_PADLENGTHFIELD_SIZE; + +#if SHA1_PADLENGTHFIELD_SIZE == 16 + *((uint64_t *) &padblock[i - 16]) = 0; +#endif + + *((uint64_t *) &padblock[i - 8]) = cpu_to_be64(total_len << 3); + + /* Number of extra blocks to hash */ + return i >> SHA1_LOG2_BLOCK_SIZE; +} + +static struct sha1_hash_ctx *sha1_ctx_mgr_resubmit(struct sha1_ctx_mgr *mgr, + struct sha1_hash_ctx *ctx) +{ + while (ctx) { + if (ctx->status & HASH_CTX_STS_COMPLETE) { + /* Clear PROCESSING bit */ + ctx->status = HASH_CTX_STS_COMPLETE; + return ctx; + } + + /* + * If the extra blocks are empty, begin hashing what remains + * in the user's buffer. + */ + if (ctx->partial_block_buffer_length == 0 && + ctx->incoming_buffer_length) { + + const void *buffer = ctx->incoming_buffer; + uint32_t len = ctx->incoming_buffer_length; + uint32_t copy_len; + + /* + * Only entire blocks can be hashed. + * Copy remainder to extra blocks buffer. + */ + copy_len = len & (SHA1_BLOCK_SIZE-1); + + if (copy_len) { + len -= copy_len; + memcpy(ctx->partial_block_buffer, + ((const char *) buffer + len), + copy_len); + ctx->partial_block_buffer_length = copy_len; + } + + ctx->incoming_buffer_length = 0; + + /* len should be a multiple of the block size now */ + assert((len % SHA1_BLOCK_SIZE) == 0); + + /* Set len to the number of blocks to be hashed */ + len >>= SHA1_LOG2_BLOCK_SIZE; + + if (len) { + + ctx->job.buffer = (uint8_t *) buffer; + ctx->job.len = len; + ctx = (struct sha1_hash_ctx *)sha1_job_mgr_submit(&mgr->mgr, + &ctx->job); + continue; + } + } + + /* + * If the extra blocks are not empty, then we are + * either on the last block(s) or we need more + * user input before continuing. + */ + if (ctx->status & HASH_CTX_STS_LAST) { + + uint8_t *buf = ctx->partial_block_buffer; + uint32_t n_extra_blocks = + sha1_pad(buf, ctx->total_length); + + ctx->status = (HASH_CTX_STS_PROCESSING | + HASH_CTX_STS_COMPLETE); + ctx->job.buffer = buf; + ctx->job.len = (uint32_t) n_extra_blocks; + ctx = (struct sha1_hash_ctx *) + sha1_job_mgr_submit(&mgr->mgr, &ctx->job); + continue; + } + + ctx->status = HASH_CTX_STS_IDLE; + return ctx; + } + + return NULL; +} + +static struct sha1_hash_ctx + *sha1_ctx_mgr_get_comp_ctx(struct sha1_ctx_mgr *mgr) +{ + /* + * If get_comp_job returns NULL, there are no jobs complete. + * If get_comp_job returns a job, verify that it is safe to return to + * the user. + * If it is not ready, resubmit the job to finish processing. + * If sha1_ctx_mgr_resubmit returned a job, it is ready to be returned. + * Otherwise, all jobs currently being managed by the hash_ctx_mgr + * still need processing. + */ + struct sha1_hash_ctx *ctx; + + ctx = (struct sha1_hash_ctx *) sha1_job_mgr_get_comp_job(&mgr->mgr); + return sha1_ctx_mgr_resubmit(mgr, ctx); +} + +static void sha1_ctx_mgr_init(struct sha1_ctx_mgr *mgr) +{ + sha1_job_mgr_init(&mgr->mgr); +} + +static struct sha1_hash_ctx *sha1_ctx_mgr_submit(struct sha1_ctx_mgr *mgr, + struct sha1_hash_ctx *ctx, + const void *buffer, + uint32_t len, + int flags) +{ + if (flags & ~(HASH_UPDATE | HASH_LAST)) { + /* User should not pass anything other than UPDATE or LAST */ + ctx->error = HASH_CTX_ERROR_INVALID_FLAGS; + return ctx; + } + + if (ctx->status & HASH_CTX_STS_PROCESSING) { + /* Cannot submit to a currently processing job. */ + ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING; + return ctx; + } + + if (ctx->status & HASH_CTX_STS_COMPLETE) { + /* Cannot update a finished job. */ + ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED; + return ctx; + } + + /* + * If we made it here, there were no errors during this call to + * submit + */ + ctx->error = HASH_CTX_ERROR_NONE; + + /* Store buffer ptr info from user */ + ctx->incoming_buffer = buffer; + ctx->incoming_buffer_length = len; + + /* + * Store the user's request flags and mark this ctx as currently + * being processed. + */ + ctx->status = (flags & HASH_LAST) ? + (HASH_CTX_STS_PROCESSING | HASH_CTX_STS_LAST) : + HASH_CTX_STS_PROCESSING; + + /* Advance byte counter */ + ctx->total_length += len; + + /* + * If there is anything currently buffered in the extra blocks, + * append to it until it contains a whole block. + * Or if the user's buffer contains less than a whole block, + * append as much as possible to the extra block. + */ + if (ctx->partial_block_buffer_length || len < SHA1_BLOCK_SIZE) { + /* + * Compute how many bytes to copy from user buffer into + * extra block + */ + uint32_t copy_len = SHA1_BLOCK_SIZE - + ctx->partial_block_buffer_length; + if (len < copy_len) + copy_len = len; + + if (copy_len) { + /* Copy and update relevant pointers and counters */ + memcpy(&ctx->partial_block_buffer[ctx->partial_block_buffer_length], + buffer, copy_len); + + ctx->partial_block_buffer_length += copy_len; + ctx->incoming_buffer = (const void *) + ((const char *)buffer + copy_len); + ctx->incoming_buffer_length = len - copy_len; + } + + /* + * The extra block should never contain more than 1 block + * here + */ + assert(ctx->partial_block_buffer_length <= SHA1_BLOCK_SIZE); + + /* + * If the extra block buffer contains exactly 1 block, it can + * be hashed. + */ + if (ctx->partial_block_buffer_length >= SHA1_BLOCK_SIZE) { + ctx->partial_block_buffer_length = 0; + + ctx->job.buffer = ctx->partial_block_buffer; + ctx->job.len = 1; + ctx = (struct sha1_hash_ctx *) + sha1_job_mgr_submit(&mgr->mgr, &ctx->job); + } + } + + return sha1_ctx_mgr_resubmit(mgr, ctx); +} + +static struct sha1_hash_ctx *sha1_ctx_mgr_flush(struct sha1_ctx_mgr *mgr) +{ + struct sha1_hash_ctx *ctx; + + while (1) { + ctx = (struct sha1_hash_ctx *) sha1_job_mgr_flush(&mgr->mgr); + + /* If flush returned 0, there are no more jobs in flight. */ + if (!ctx) + return NULL; + + /* + * If flush returned a job, resubmit the job to finish + * processing. + */ + ctx = sha1_ctx_mgr_resubmit(mgr, ctx); + + /* + * If sha1_ctx_mgr_resubmit returned a job, it is ready to be + * returned. Otherwise, all jobs currently being managed by the + * sha1_ctx_mgr still need processing. Loop. + */ + if (ctx) + return ctx; + } +} + +static int sha1_mb_init(struct ahash_request *areq) +{ + struct sha1_hash_ctx *sctx = ahash_request_ctx(areq); + + hash_ctx_init(sctx); + sctx->job.result_digest[0] = SHA1_H0; + sctx->job.result_digest[1] = SHA1_H1; + sctx->job.result_digest[2] = SHA1_H2; + sctx->job.result_digest[3] = SHA1_H3; + sctx->job.result_digest[4] = SHA1_H4; + sctx->total_length = 0; + sctx->partial_block_buffer_length = 0; + sctx->status = HASH_CTX_STS_IDLE; + + return 0; +} + +static int sha1_mb_set_results(struct mcryptd_hash_request_ctx *rctx) +{ + int i; + struct sha1_hash_ctx *sctx = ahash_request_ctx(&rctx->areq); + __be32 *dst = (__be32 *) rctx->out; + + for (i = 0; i < 5; ++i) + dst[i] = cpu_to_be32(sctx->job.result_digest[i]); + + return 0; +} + +static int sha_finish_walk(struct mcryptd_hash_request_ctx **ret_rctx, + struct mcryptd_alg_cstate *cstate, bool flush) +{ + int flag = HASH_UPDATE; + int nbytes, err = 0; + struct mcryptd_hash_request_ctx *rctx = *ret_rctx; + struct sha1_hash_ctx *sha_ctx; + + /* more work ? */ + while (!(rctx->flag & HASH_DONE)) { + nbytes = crypto_ahash_walk_done(&rctx->walk, 0); + if (nbytes < 0) { + err = nbytes; + goto out; + } + /* check if the walk is done */ + if (crypto_ahash_walk_last(&rctx->walk)) { + rctx->flag |= HASH_DONE; + if (rctx->flag & HASH_FINAL) + flag |= HASH_LAST; + + } + sha_ctx = (struct sha1_hash_ctx *) + ahash_request_ctx(&rctx->areq); + kernel_fpu_begin(); + sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx, + rctx->walk.data, nbytes, flag); + if (!sha_ctx) { + if (flush) + sha_ctx = sha1_ctx_mgr_flush(cstate->mgr); + } + kernel_fpu_end(); + if (sha_ctx) + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + else { + rctx = NULL; + goto out; + } + } + + /* copy the results */ + if (rctx->flag & HASH_FINAL) + sha1_mb_set_results(rctx); + +out: + *ret_rctx = rctx; + return err; +} + +static int sha_complete_job(struct mcryptd_hash_request_ctx *rctx, + struct mcryptd_alg_cstate *cstate, + int err) +{ + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha1_hash_ctx *sha_ctx; + struct mcryptd_hash_request_ctx *req_ctx; + int ret; + + /* remove from work list */ + spin_lock(&cstate->work_lock); + list_del(&rctx->waiter); + spin_unlock(&cstate->work_lock); + + if (irqs_disabled()) + rctx->complete(&req->base, err); + else { + local_bh_disable(); + rctx->complete(&req->base, err); + local_bh_enable(); + } + + /* check to see if there are other jobs that are done */ + sha_ctx = sha1_ctx_mgr_get_comp_ctx(cstate->mgr); + while (sha_ctx) { + req_ctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&req_ctx, cstate, false); + if (req_ctx) { + spin_lock(&cstate->work_lock); + list_del(&req_ctx->waiter); + spin_unlock(&cstate->work_lock); + + req = cast_mcryptd_ctx_to_req(req_ctx); + if (irqs_disabled()) + req_ctx->complete(&req->base, ret); + else { + local_bh_disable(); + req_ctx->complete(&req->base, ret); + local_bh_enable(); + } + } + sha_ctx = sha1_ctx_mgr_get_comp_ctx(cstate->mgr); + } + + return 0; +} + +static void sha1_mb_add_list(struct mcryptd_hash_request_ctx *rctx, + struct mcryptd_alg_cstate *cstate) +{ + unsigned long next_flush; + unsigned long delay = usecs_to_jiffies(FLUSH_INTERVAL); + + /* initialize tag */ + rctx->tag.arrival = jiffies; /* tag the arrival time */ + rctx->tag.seq_num = cstate->next_seq_num++; + next_flush = rctx->tag.arrival + delay; + rctx->tag.expire = next_flush; + + spin_lock(&cstate->work_lock); + list_add_tail(&rctx->waiter, &cstate->work_list); + spin_unlock(&cstate->work_lock); + + mcryptd_arm_flusher(cstate, delay); +} + +static int sha1_mb_update(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha1_mb_alg_state.alg_cstate); + + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha1_hash_ctx *sha_ctx; + int ret = 0, nbytes; + + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + nbytes = crypto_ahash_walk_first(req, &rctx->walk); + + if (nbytes < 0) { + ret = nbytes; + goto done; + } + + if (crypto_ahash_walk_last(&rctx->walk)) + rctx->flag |= HASH_DONE; + + /* submit */ + sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq); + sha1_mb_add_list(rctx, cstate); + kernel_fpu_begin(); + sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data, + nbytes, HASH_UPDATE); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha1_mb_finup(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha1_mb_alg_state.alg_cstate); + + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha1_hash_ctx *sha_ctx; + int ret = 0, flag = HASH_UPDATE, nbytes; + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + nbytes = crypto_ahash_walk_first(req, &rctx->walk); + + if (nbytes < 0) { + ret = nbytes; + goto done; + } + + if (crypto_ahash_walk_last(&rctx->walk)) { + rctx->flag |= HASH_DONE; + flag = HASH_LAST; + } + + /* submit */ + rctx->flag |= HASH_FINAL; + sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq); + sha1_mb_add_list(rctx, cstate); + + kernel_fpu_begin(); + sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data, + nbytes, flag); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha1_mb_final(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha1_mb_alg_state.alg_cstate); + + struct sha1_hash_ctx *sha_ctx; + int ret = 0; + u8 data; + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + rctx->flag |= HASH_DONE | HASH_FINAL; + + sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq); + /* flag HASH_FINAL and 0 data size */ + sha1_mb_add_list(rctx, cstate); + kernel_fpu_begin(); + sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx, &data, 0, + HASH_LAST); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha1_mb_export(struct ahash_request *areq, void *out) +{ + struct sha1_hash_ctx *sctx = ahash_request_ctx(areq); + + memcpy(out, sctx, sizeof(*sctx)); + + return 0; +} + +static int sha1_mb_import(struct ahash_request *areq, const void *in) +{ + struct sha1_hash_ctx *sctx = ahash_request_ctx(areq); + + memcpy(sctx, in, sizeof(*sctx)); + + return 0; +} + +static int sha1_mb_async_init_tfm(struct crypto_tfm *tfm) +{ + struct mcryptd_ahash *mcryptd_tfm; + struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm); + struct mcryptd_hash_ctx *mctx; + + mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha1-mb", + CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(mcryptd_tfm)) + return PTR_ERR(mcryptd_tfm); + mctx = crypto_ahash_ctx(&mcryptd_tfm->base); + mctx->alg_state = &sha1_mb_alg_state; + ctx->mcryptd_tfm = mcryptd_tfm; + crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), + sizeof(struct ahash_request) + + crypto_ahash_reqsize(&mcryptd_tfm->base)); + + return 0; +} + +static void sha1_mb_async_exit_tfm(struct crypto_tfm *tfm) +{ + struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm); + + mcryptd_free_ahash(ctx->mcryptd_tfm); +} + +static int sha1_mb_areq_init_tfm(struct crypto_tfm *tfm) +{ + crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), + sizeof(struct ahash_request) + + sizeof(struct sha1_hash_ctx)); + + return 0; +} + +static void sha1_mb_areq_exit_tfm(struct crypto_tfm *tfm) +{ + struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm); + + mcryptd_free_ahash(ctx->mcryptd_tfm); +} + +static struct ahash_alg sha1_mb_areq_alg = { + .init = sha1_mb_init, + .update = sha1_mb_update, + .final = sha1_mb_final, + .finup = sha1_mb_finup, + .export = sha1_mb_export, + .import = sha1_mb_import, + .halg = { + .digestsize = SHA1_DIGEST_SIZE, + .statesize = sizeof(struct sha1_hash_ctx), + .base = { + .cra_name = "__sha1-mb", + .cra_driver_name = "__intel_sha1-mb", + .cra_priority = 100, + /* + * use ASYNC flag as some buffers in multi-buffer + * algo may not have completed before hashing thread + * sleep + */ + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_INTERNAL, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT + (sha1_mb_areq_alg.halg.base.cra_list), + .cra_init = sha1_mb_areq_init_tfm, + .cra_exit = sha1_mb_areq_exit_tfm, + .cra_ctxsize = sizeof(struct sha1_hash_ctx), + } + } +}; + +static int sha1_mb_async_init(struct ahash_request *req) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_init(mcryptd_req); +} + +static int sha1_mb_async_update(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_update(mcryptd_req); +} + +static int sha1_mb_async_finup(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_finup(mcryptd_req); +} + +static int sha1_mb_async_final(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_final(mcryptd_req); +} + +static int sha1_mb_async_digest(struct ahash_request *req) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_digest(mcryptd_req); +} + +static int sha1_mb_async_export(struct ahash_request *req, void *out) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_export(mcryptd_req, out); +} + +static int sha1_mb_async_import(struct ahash_request *req, const void *in) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + struct crypto_ahash *child = mcryptd_ahash_child(mcryptd_tfm); + struct mcryptd_hash_request_ctx *rctx; + struct ahash_request *areq; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + rctx = ahash_request_ctx(mcryptd_req); + areq = &rctx->areq; + + ahash_request_set_tfm(areq, child); + ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_SLEEP, + rctx->complete, req); + + return crypto_ahash_import(mcryptd_req, in); +} + +static struct ahash_alg sha1_mb_async_alg = { + .init = sha1_mb_async_init, + .update = sha1_mb_async_update, + .final = sha1_mb_async_final, + .finup = sha1_mb_async_finup, + .digest = sha1_mb_async_digest, + .export = sha1_mb_async_export, + .import = sha1_mb_async_import, + .halg = { + .digestsize = SHA1_DIGEST_SIZE, + .statesize = sizeof(struct sha1_hash_ctx), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1_mb", + /* + * Low priority, since with few concurrent hash requests + * this is extremely slow due to the flush delay. Users + * whose workloads would benefit from this can request + * it explicitly by driver name, or can increase its + * priority at runtime using NETLINK_CRYPTO. + */ + .cra_priority = 50, + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(sha1_mb_async_alg.halg.base.cra_list), + .cra_init = sha1_mb_async_init_tfm, + .cra_exit = sha1_mb_async_exit_tfm, + .cra_ctxsize = sizeof(struct sha1_mb_ctx), + .cra_alignmask = 0, + }, + }, +}; + +static unsigned long sha1_mb_flusher(struct mcryptd_alg_cstate *cstate) +{ + struct mcryptd_hash_request_ctx *rctx; + unsigned long cur_time; + unsigned long next_flush = 0; + struct sha1_hash_ctx *sha_ctx; + + + cur_time = jiffies; + + while (!list_empty(&cstate->work_list)) { + rctx = list_entry(cstate->work_list.next, + struct mcryptd_hash_request_ctx, waiter); + if (time_before(cur_time, rctx->tag.expire)) + break; + kernel_fpu_begin(); + sha_ctx = (struct sha1_hash_ctx *) + sha1_ctx_mgr_flush(cstate->mgr); + kernel_fpu_end(); + if (!sha_ctx) { + pr_err("sha1_mb error: nothing got flushed for non-empty list\n"); + break; + } + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + sha_finish_walk(&rctx, cstate, true); + sha_complete_job(rctx, cstate, 0); + } + + if (!list_empty(&cstate->work_list)) { + rctx = list_entry(cstate->work_list.next, + struct mcryptd_hash_request_ctx, waiter); + /* get the hash context and then flush time */ + next_flush = rctx->tag.expire; + mcryptd_arm_flusher(cstate, get_delay(next_flush)); + } + return next_flush; +} + +static int __init sha1_mb_mod_init(void) +{ + + int cpu; + int err; + struct mcryptd_alg_cstate *cpu_state; + + /* check for dependent cpu features */ + if (!boot_cpu_has(X86_FEATURE_AVX2) || + !boot_cpu_has(X86_FEATURE_BMI2)) + return -ENODEV; + + /* initialize multibuffer structures */ + sha1_mb_alg_state.alg_cstate = alloc_percpu(struct mcryptd_alg_cstate); + + sha1_job_mgr_init = sha1_mb_mgr_init_avx2; + sha1_job_mgr_submit = sha1_mb_mgr_submit_avx2; + sha1_job_mgr_flush = sha1_mb_mgr_flush_avx2; + sha1_job_mgr_get_comp_job = sha1_mb_mgr_get_comp_job_avx2; + + if (!sha1_mb_alg_state.alg_cstate) + return -ENOMEM; + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha1_mb_alg_state.alg_cstate, cpu); + cpu_state->next_flush = 0; + cpu_state->next_seq_num = 0; + cpu_state->flusher_engaged = false; + INIT_DELAYED_WORK(&cpu_state->flush, mcryptd_flusher); + cpu_state->cpu = cpu; + cpu_state->alg_state = &sha1_mb_alg_state; + cpu_state->mgr = kzalloc(sizeof(struct sha1_ctx_mgr), + GFP_KERNEL); + if (!cpu_state->mgr) + goto err2; + sha1_ctx_mgr_init(cpu_state->mgr); + INIT_LIST_HEAD(&cpu_state->work_list); + spin_lock_init(&cpu_state->work_lock); + } + sha1_mb_alg_state.flusher = &sha1_mb_flusher; + + err = crypto_register_ahash(&sha1_mb_areq_alg); + if (err) + goto err2; + err = crypto_register_ahash(&sha1_mb_async_alg); + if (err) + goto err1; + + + return 0; +err1: + crypto_unregister_ahash(&sha1_mb_areq_alg); +err2: + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha1_mb_alg_state.alg_cstate, cpu); + kfree(cpu_state->mgr); + } + free_percpu(sha1_mb_alg_state.alg_cstate); + return -ENODEV; +} + +static void __exit sha1_mb_mod_fini(void) +{ + int cpu; + struct mcryptd_alg_cstate *cpu_state; + + crypto_unregister_ahash(&sha1_mb_async_alg); + crypto_unregister_ahash(&sha1_mb_areq_alg); + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha1_mb_alg_state.alg_cstate, cpu); + kfree(cpu_state->mgr); + } + free_percpu(sha1_mb_alg_state.alg_cstate); +} + +module_init(sha1_mb_mod_init); +module_exit(sha1_mb_mod_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, multi buffer accelerated"); + +MODULE_ALIAS_CRYPTO("sha1"); diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_ctx.h b/arch/x86/crypto/sha1-mb/sha1_mb_ctx.h new file mode 100644 index 000000000..9454bd16f --- /dev/null +++ b/arch/x86/crypto/sha1-mb/sha1_mb_ctx.h @@ -0,0 +1,134 @@ +/* + * Header file for multi buffer SHA context + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SHA_MB_CTX_INTERNAL_H +#define _SHA_MB_CTX_INTERNAL_H + +#include "sha1_mb_mgr.h" + +#define HASH_UPDATE 0x00 +#define HASH_LAST 0x01 +#define HASH_DONE 0x02 +#define HASH_FINAL 0x04 + +#define HASH_CTX_STS_IDLE 0x00 +#define HASH_CTX_STS_PROCESSING 0x01 +#define HASH_CTX_STS_LAST 0x02 +#define HASH_CTX_STS_COMPLETE 0x04 + +enum hash_ctx_error { + HASH_CTX_ERROR_NONE = 0, + HASH_CTX_ERROR_INVALID_FLAGS = -1, + HASH_CTX_ERROR_ALREADY_PROCESSING = -2, + HASH_CTX_ERROR_ALREADY_COMPLETED = -3, + +#ifdef HASH_CTX_DEBUG + HASH_CTX_ERROR_DEBUG_DIGEST_MISMATCH = -4, +#endif +}; + + +#define hash_ctx_user_data(ctx) ((ctx)->user_data) +#define hash_ctx_digest(ctx) ((ctx)->job.result_digest) +#define hash_ctx_processing(ctx) ((ctx)->status & HASH_CTX_STS_PROCESSING) +#define hash_ctx_complete(ctx) ((ctx)->status == HASH_CTX_STS_COMPLETE) +#define hash_ctx_status(ctx) ((ctx)->status) +#define hash_ctx_error(ctx) ((ctx)->error) +#define hash_ctx_init(ctx) \ + do { \ + (ctx)->error = HASH_CTX_ERROR_NONE; \ + (ctx)->status = HASH_CTX_STS_COMPLETE; \ + } while (0) + + +/* Hash Constants and Typedefs */ +#define SHA1_DIGEST_LENGTH 5 +#define SHA1_LOG2_BLOCK_SIZE 6 + +#define SHA1_PADLENGTHFIELD_SIZE 8 + +#ifdef SHA_MB_DEBUG +#define assert(expr) \ +do { \ + if (unlikely(!(expr))) { \ + printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \ + #expr, __FILE__, __func__, __LINE__); \ + } \ +} while (0) +#else +#define assert(expr) do {} while (0) +#endif + +struct sha1_ctx_mgr { + struct sha1_mb_mgr mgr; +}; + +/* typedef struct sha1_ctx_mgr sha1_ctx_mgr; */ + +struct sha1_hash_ctx { + /* Must be at struct offset 0 */ + struct job_sha1 job; + /* status flag */ + int status; + /* error flag */ + int error; + + uint64_t total_length; + const void *incoming_buffer; + uint32_t incoming_buffer_length; + uint8_t partial_block_buffer[SHA1_BLOCK_SIZE * 2]; + uint32_t partial_block_buffer_length; + void *user_data; +}; + +#endif diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_mgr.h b/arch/x86/crypto/sha1-mb/sha1_mb_mgr.h new file mode 100644 index 000000000..08ad1a9ac --- /dev/null +++ b/arch/x86/crypto/sha1-mb/sha1_mb_mgr.h @@ -0,0 +1,110 @@ +/* + * Header file for multi buffer SHA1 algorithm manager + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * James Guilford <james.guilford@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __SHA_MB_MGR_H +#define __SHA_MB_MGR_H + + +#include <linux/types.h> + +#define NUM_SHA1_DIGEST_WORDS 5 + +enum job_sts { STS_UNKNOWN = 0, + STS_BEING_PROCESSED = 1, + STS_COMPLETED = 2, + STS_INTERNAL_ERROR = 3, + STS_ERROR = 4 +}; + +struct job_sha1 { + u8 *buffer; + u32 len; + u32 result_digest[NUM_SHA1_DIGEST_WORDS] __aligned(32); + enum job_sts status; + void *user_data; +}; + +/* SHA1 out-of-order scheduler */ + +/* typedef uint32_t sha1_digest_array[5][8]; */ + +struct sha1_args_x8 { + uint32_t digest[5][8]; + uint8_t *data_ptr[8]; +}; + +struct sha1_lane_data { + struct job_sha1 *job_in_lane; +}; + +struct sha1_mb_mgr { + struct sha1_args_x8 args; + + uint32_t lens[8]; + + /* each byte is index (0...7) of unused lanes */ + uint64_t unused_lanes; + /* byte 4 is set to FF as a flag */ + struct sha1_lane_data ldata[8]; +}; + + +#define SHA1_MB_MGR_NUM_LANES_AVX2 8 + +void sha1_mb_mgr_init_avx2(struct sha1_mb_mgr *state); +struct job_sha1 *sha1_mb_mgr_submit_avx2(struct sha1_mb_mgr *state, + struct job_sha1 *job); +struct job_sha1 *sha1_mb_mgr_flush_avx2(struct sha1_mb_mgr *state); +struct job_sha1 *sha1_mb_mgr_get_comp_job_avx2(struct sha1_mb_mgr *state); + +#endif diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_mgr_datastruct.S b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_datastruct.S new file mode 100644 index 000000000..86688c6e7 --- /dev/null +++ b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_datastruct.S @@ -0,0 +1,287 @@ +/* + * Header file for multi buffer SHA1 algorithm data structure + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * James Guilford <james.guilford@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +# Macros for defining data structures + +# Usage example + +#START_FIELDS # JOB_AES +### name size align +#FIELD _plaintext, 8, 8 # pointer to plaintext +#FIELD _ciphertext, 8, 8 # pointer to ciphertext +#FIELD _IV, 16, 8 # IV +#FIELD _keys, 8, 8 # pointer to keys +#FIELD _len, 4, 4 # length in bytes +#FIELD _status, 4, 4 # status enumeration +#FIELD _user_data, 8, 8 # pointer to user data +#UNION _union, size1, align1, \ +# size2, align2, \ +# size3, align3, \ +# ... +#END_FIELDS +#%assign _JOB_AES_size _FIELD_OFFSET +#%assign _JOB_AES_align _STRUCT_ALIGN + +######################################################################### + +# Alternate "struc-like" syntax: +# STRUCT job_aes2 +# RES_Q .plaintext, 1 +# RES_Q .ciphertext, 1 +# RES_DQ .IV, 1 +# RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN +# RES_U .union, size1, align1, \ +# size2, align2, \ +# ... +# ENDSTRUCT +# # Following only needed if nesting +# %assign job_aes2_size _FIELD_OFFSET +# %assign job_aes2_align _STRUCT_ALIGN +# +# RES_* macros take a name, a count and an optional alignment. +# The count in in terms of the base size of the macro, and the +# default alignment is the base size. +# The macros are: +# Macro Base size +# RES_B 1 +# RES_W 2 +# RES_D 4 +# RES_Q 8 +# RES_DQ 16 +# RES_Y 32 +# RES_Z 64 +# +# RES_U defines a union. It's arguments are a name and two or more +# pairs of "size, alignment" +# +# The two assigns are only needed if this structure is being nested +# within another. Even if the assigns are not done, one can still use +# STRUCT_NAME_size as the size of the structure. +# +# Note that for nesting, you still need to assign to STRUCT_NAME_size. +# +# The differences between this and using "struc" directly are that each +# type is implicitly aligned to its natural length (although this can be +# over-ridden with an explicit third parameter), and that the structure +# is padded at the end to its overall alignment. +# + +######################################################################### + +#ifndef _SHA1_MB_MGR_DATASTRUCT_ASM_ +#define _SHA1_MB_MGR_DATASTRUCT_ASM_ + +## START_FIELDS +.macro START_FIELDS + _FIELD_OFFSET = 0 + _STRUCT_ALIGN = 0 +.endm + +## FIELD name size align +.macro FIELD name size align + _FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1)) + \name = _FIELD_OFFSET + _FIELD_OFFSET = _FIELD_OFFSET + (\size) +.if (\align > _STRUCT_ALIGN) + _STRUCT_ALIGN = \align +.endif +.endm + +## END_FIELDS +.macro END_FIELDS + _FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1)) +.endm + +######################################################################## + +.macro STRUCT p1 +START_FIELDS +.struc \p1 +.endm + +.macro ENDSTRUCT + tmp = _FIELD_OFFSET + END_FIELDS + tmp = (_FIELD_OFFSET - %%tmp) +.if (tmp > 0) + .lcomm tmp +.endif +.endstruc +.endm + +## RES_int name size align +.macro RES_int p1 p2 p3 + name = \p1 + size = \p2 + align = .\p3 + + _FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1)) +.align align +.lcomm name size + _FIELD_OFFSET = _FIELD_OFFSET + (size) +.if (align > _STRUCT_ALIGN) + _STRUCT_ALIGN = align +.endif +.endm + + + +# macro RES_B name, size [, align] +.macro RES_B _name, _size, _align=1 +RES_int _name _size _align +.endm + +# macro RES_W name, size [, align] +.macro RES_W _name, _size, _align=2 +RES_int _name 2*(_size) _align +.endm + +# macro RES_D name, size [, align] +.macro RES_D _name, _size, _align=4 +RES_int _name 4*(_size) _align +.endm + +# macro RES_Q name, size [, align] +.macro RES_Q _name, _size, _align=8 +RES_int _name 8*(_size) _align +.endm + +# macro RES_DQ name, size [, align] +.macro RES_DQ _name, _size, _align=16 +RES_int _name 16*(_size) _align +.endm + +# macro RES_Y name, size [, align] +.macro RES_Y _name, _size, _align=32 +RES_int _name 32*(_size) _align +.endm + +# macro RES_Z name, size [, align] +.macro RES_Z _name, _size, _align=64 +RES_int _name 64*(_size) _align +.endm + + +#endif + +######################################################################## +#### Define constants +######################################################################## + +######################################################################## +#### Define SHA1 Out Of Order Data Structures +######################################################################## + +START_FIELDS # LANE_DATA +### name size align +FIELD _job_in_lane, 8, 8 # pointer to job object +END_FIELDS + +_LANE_DATA_size = _FIELD_OFFSET +_LANE_DATA_align = _STRUCT_ALIGN + +######################################################################## + +START_FIELDS # SHA1_ARGS_X8 +### name size align +FIELD _digest, 4*5*8, 16 # transposed digest +FIELD _data_ptr, 8*8, 8 # array of pointers to data +END_FIELDS + +_SHA1_ARGS_X4_size = _FIELD_OFFSET +_SHA1_ARGS_X4_align = _STRUCT_ALIGN +_SHA1_ARGS_X8_size = _FIELD_OFFSET +_SHA1_ARGS_X8_align = _STRUCT_ALIGN + +######################################################################## + +START_FIELDS # MB_MGR +### name size align +FIELD _args, _SHA1_ARGS_X4_size, _SHA1_ARGS_X4_align +FIELD _lens, 4*8, 8 +FIELD _unused_lanes, 8, 8 +FIELD _ldata, _LANE_DATA_size*8, _LANE_DATA_align +END_FIELDS + +_MB_MGR_size = _FIELD_OFFSET +_MB_MGR_align = _STRUCT_ALIGN + +_args_digest = _args + _digest +_args_data_ptr = _args + _data_ptr + + +######################################################################## +#### Define constants +######################################################################## + +#define STS_UNKNOWN 0 +#define STS_BEING_PROCESSED 1 +#define STS_COMPLETED 2 + +######################################################################## +#### Define JOB_SHA1 structure +######################################################################## + +START_FIELDS # JOB_SHA1 + +### name size align +FIELD _buffer, 8, 8 # pointer to buffer +FIELD _len, 4, 4 # length in bytes +FIELD _result_digest, 5*4, 32 # Digest (output) +FIELD _status, 4, 4 +FIELD _user_data, 8, 8 +END_FIELDS + +_JOB_SHA1_size = _FIELD_OFFSET +_JOB_SHA1_align = _STRUCT_ALIGN diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S new file mode 100644 index 000000000..7cfba738f --- /dev/null +++ b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S @@ -0,0 +1,304 @@ +/* + * Flush routine for SHA1 multibuffer + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * James Guilford <james.guilford@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include <linux/linkage.h> +#include <asm/frame.h> +#include "sha1_mb_mgr_datastruct.S" + + +.extern sha1_x8_avx2 + +# LINUX register definitions +#define arg1 %rdi +#define arg2 %rsi + +# Common definitions +#define state arg1 +#define job arg2 +#define len2 arg2 + +# idx must be a register not clobbered by sha1_x8_avx2 +#define idx %r8 +#define DWORD_idx %r8d + +#define unused_lanes %rbx +#define lane_data %rbx +#define tmp2 %rbx +#define tmp2_w %ebx + +#define job_rax %rax +#define tmp1 %rax +#define size_offset %rax +#define tmp %rax +#define start_offset %rax + +#define tmp3 %arg1 + +#define extra_blocks %arg2 +#define p %arg2 + +.macro LABEL prefix n +\prefix\n\(): +.endm + +.macro JNE_SKIP i +jne skip_\i +.endm + +.altmacro +.macro SET_OFFSET _offset +offset = \_offset +.endm +.noaltmacro + +# JOB* sha1_mb_mgr_flush_avx2(MB_MGR *state) +# arg 1 : rcx : state +ENTRY(sha1_mb_mgr_flush_avx2) + FRAME_BEGIN + push %rbx + + # If bit (32+3) is set, then all lanes are empty + mov _unused_lanes(state), unused_lanes + bt $32+3, unused_lanes + jc return_null + + # find a lane with a non-null job + xor idx, idx + offset = (_ldata + 1 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne one(%rip), idx + offset = (_ldata + 2 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne two(%rip), idx + offset = (_ldata + 3 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne three(%rip), idx + offset = (_ldata + 4 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne four(%rip), idx + offset = (_ldata + 5 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne five(%rip), idx + offset = (_ldata + 6 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne six(%rip), idx + offset = (_ldata + 7 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne seven(%rip), idx + + # copy idx to empty lanes +copy_lane_data: + offset = (_args + _data_ptr) + mov offset(state,idx,8), tmp + + I = 0 +.rep 8 + offset = (_ldata + I * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) +.altmacro + JNE_SKIP %I + offset = (_args + _data_ptr + 8*I) + mov tmp, offset(state) + offset = (_lens + 4*I) + movl $0xFFFFFFFF, offset(state) +LABEL skip_ %I + I = (I+1) +.noaltmacro +.endr + + # Find min length + vmovdqu _lens+0*16(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 + + vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} + vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F} + vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min value in low dword + + vmovd %xmm2, DWORD_idx + mov idx, len2 + and $0xF, idx + shr $4, len2 + jz len_is_0 + + vpand clear_low_nibble(%rip), %xmm2, %xmm2 + vpshufd $0, %xmm2, %xmm2 + + vpsubd %xmm2, %xmm0, %xmm0 + vpsubd %xmm2, %xmm1, %xmm1 + + vmovdqu %xmm0, _lens+0*16(state) + vmovdqu %xmm1, _lens+1*16(state) + + # "state" and "args" are the same address, arg1 + # len is arg2 + call sha1_x8_avx2 + # state and idx are intact + + +len_is_0: + # process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + mov _unused_lanes(state), unused_lanes + shl $4, unused_lanes + or idx, unused_lanes + mov unused_lanes, _unused_lanes(state) + + movl $0xFFFFFFFF, _lens(state, idx, 4) + + vmovd _args_digest(state , idx, 4) , %xmm0 + vpinsrd $1, _args_digest+1*32(state, idx, 4), %xmm0, %xmm0 + vpinsrd $2, _args_digest+2*32(state, idx, 4), %xmm0, %xmm0 + vpinsrd $3, _args_digest+3*32(state, idx, 4), %xmm0, %xmm0 + movl _args_digest+4*32(state, idx, 4), tmp2_w + + vmovdqu %xmm0, _result_digest(job_rax) + offset = (_result_digest + 1*16) + mov tmp2_w, offset(job_rax) + +return: + pop %rbx + FRAME_END + ret + +return_null: + xor job_rax, job_rax + jmp return +ENDPROC(sha1_mb_mgr_flush_avx2) + + +################################################################# + +.align 16 +ENTRY(sha1_mb_mgr_get_comp_job_avx2) + push %rbx + + ## if bit 32+3 is set, then all lanes are empty + mov _unused_lanes(state), unused_lanes + bt $(32+3), unused_lanes + jc .return_null + + # Find min length + vmovdqu _lens(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 + + vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} + vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F} + vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min value in low dword + + vmovd %xmm2, DWORD_idx + test $~0xF, idx + jnz .return_null + + # process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + mov _unused_lanes(state), unused_lanes + shl $4, unused_lanes + or idx, unused_lanes + mov unused_lanes, _unused_lanes(state) + + movl $0xFFFFFFFF, _lens(state, idx, 4) + + vmovd _args_digest(state, idx, 4), %xmm0 + vpinsrd $1, _args_digest+1*32(state, idx, 4), %xmm0, %xmm0 + vpinsrd $2, _args_digest+2*32(state, idx, 4), %xmm0, %xmm0 + vpinsrd $3, _args_digest+3*32(state, idx, 4), %xmm0, %xmm0 + movl _args_digest+4*32(state, idx, 4), tmp2_w + + vmovdqu %xmm0, _result_digest(job_rax) + movl tmp2_w, _result_digest+1*16(job_rax) + + pop %rbx + + ret + +.return_null: + xor job_rax, job_rax + pop %rbx + ret +ENDPROC(sha1_mb_mgr_get_comp_job_avx2) + +.section .rodata.cst16.clear_low_nibble, "aM", @progbits, 16 +.align 16 +clear_low_nibble: +.octa 0x000000000000000000000000FFFFFFF0 + +.section .rodata.cst8, "aM", @progbits, 8 +.align 8 +one: +.quad 1 +two: +.quad 2 +three: +.quad 3 +four: +.quad 4 +five: +.quad 5 +six: +.quad 6 +seven: +.quad 7 diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_mgr_init_avx2.c b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_init_avx2.c new file mode 100644 index 000000000..d2add0d35 --- /dev/null +++ b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_init_avx2.c @@ -0,0 +1,64 @@ +/* + * Initialization code for multi buffer SHA1 algorithm for AVX2 + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "sha1_mb_mgr.h" + +void sha1_mb_mgr_init_avx2(struct sha1_mb_mgr *state) +{ + unsigned int j; + state->unused_lanes = 0xF76543210ULL; + for (j = 0; j < 8; j++) { + state->lens[j] = 0xFFFFFFFF; + state->ldata[j].job_in_lane = NULL; + } +} diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_mgr_submit_avx2.S b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_submit_avx2.S new file mode 100644 index 000000000..7a93b1c0d --- /dev/null +++ b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_submit_avx2.S @@ -0,0 +1,209 @@ +/* + * Buffer submit code for multi buffer SHA1 algorithm + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * James Guilford <james.guilford@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include "sha1_mb_mgr_datastruct.S" + + +.extern sha1_x8_avx + +# LINUX register definitions +arg1 = %rdi +arg2 = %rsi +size_offset = %rcx +tmp2 = %rcx +extra_blocks = %rdx + +# Common definitions +#define state arg1 +#define job %rsi +#define len2 arg2 +#define p2 arg2 + +# idx must be a register not clobberred by sha1_x8_avx2 +idx = %r8 +DWORD_idx = %r8d +last_len = %r8 + +p = %r11 +start_offset = %r11 + +unused_lanes = %rbx +BYTE_unused_lanes = %bl + +job_rax = %rax +len = %rax +DWORD_len = %eax + +lane = %r12 +tmp3 = %r12 + +tmp = %r9 +DWORD_tmp = %r9d + +lane_data = %r10 + +# JOB* submit_mb_mgr_submit_avx2(MB_MGR *state, job_sha1 *job) +# arg 1 : rcx : state +# arg 2 : rdx : job +ENTRY(sha1_mb_mgr_submit_avx2) + FRAME_BEGIN + push %rbx + push %r12 + + mov _unused_lanes(state), unused_lanes + mov unused_lanes, lane + and $0xF, lane + shr $4, unused_lanes + imul $_LANE_DATA_size, lane, lane_data + movl $STS_BEING_PROCESSED, _status(job) + lea _ldata(state, lane_data), lane_data + mov unused_lanes, _unused_lanes(state) + movl _len(job), DWORD_len + + mov job, _job_in_lane(lane_data) + shl $4, len + or lane, len + + movl DWORD_len, _lens(state , lane, 4) + + # Load digest words from result_digest + vmovdqu _result_digest(job), %xmm0 + mov _result_digest+1*16(job), DWORD_tmp + vmovd %xmm0, _args_digest(state, lane, 4) + vpextrd $1, %xmm0, _args_digest+1*32(state , lane, 4) + vpextrd $2, %xmm0, _args_digest+2*32(state , lane, 4) + vpextrd $3, %xmm0, _args_digest+3*32(state , lane, 4) + movl DWORD_tmp, _args_digest+4*32(state , lane, 4) + + mov _buffer(job), p + mov p, _args_data_ptr(state, lane, 8) + + cmp $0xF, unused_lanes + jne return_null + +start_loop: + # Find min length + vmovdqa _lens(state), %xmm0 + vmovdqa _lens+1*16(state), %xmm1 + + vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} + vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F} + vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min value in low dword + + vmovd %xmm2, DWORD_idx + mov idx, len2 + and $0xF, idx + shr $4, len2 + jz len_is_0 + + vpand clear_low_nibble(%rip), %xmm2, %xmm2 + vpshufd $0, %xmm2, %xmm2 + + vpsubd %xmm2, %xmm0, %xmm0 + vpsubd %xmm2, %xmm1, %xmm1 + + vmovdqa %xmm0, _lens + 0*16(state) + vmovdqa %xmm1, _lens + 1*16(state) + + + # "state" and "args" are the same address, arg1 + # len is arg2 + call sha1_x8_avx2 + + # state and idx are intact + +len_is_0: + # process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + mov _unused_lanes(state), unused_lanes + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + shl $4, unused_lanes + or idx, unused_lanes + mov unused_lanes, _unused_lanes(state) + + movl $0xFFFFFFFF, _lens(state, idx, 4) + + vmovd _args_digest(state, idx, 4), %xmm0 + vpinsrd $1, _args_digest+1*32(state , idx, 4), %xmm0, %xmm0 + vpinsrd $2, _args_digest+2*32(state , idx, 4), %xmm0, %xmm0 + vpinsrd $3, _args_digest+3*32(state , idx, 4), %xmm0, %xmm0 + movl _args_digest+4*32(state, idx, 4), DWORD_tmp + + vmovdqu %xmm0, _result_digest(job_rax) + movl DWORD_tmp, _result_digest+1*16(job_rax) + +return: + pop %r12 + pop %rbx + FRAME_END + ret + +return_null: + xor job_rax, job_rax + jmp return + +ENDPROC(sha1_mb_mgr_submit_avx2) + +.section .rodata.cst16.clear_low_nibble, "aM", @progbits, 16 +.align 16 +clear_low_nibble: + .octa 0x000000000000000000000000FFFFFFF0 diff --git a/arch/x86/crypto/sha1-mb/sha1_x8_avx2.S b/arch/x86/crypto/sha1-mb/sha1_x8_avx2.S new file mode 100644 index 000000000..20f77aa63 --- /dev/null +++ b/arch/x86/crypto/sha1-mb/sha1_x8_avx2.S @@ -0,0 +1,492 @@ +/* + * Multi-buffer SHA1 algorithm hash compute routine + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * James Guilford <james.guilford@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/linkage.h> +#include "sha1_mb_mgr_datastruct.S" + +## code to compute oct SHA1 using SSE-256 +## outer calling routine takes care of save and restore of XMM registers + +## Function clobbers: rax, rcx, rdx, rbx, rsi, rdi, r9-r15# ymm0-15 +## +## Linux clobbers: rax rbx rcx rdx rsi r9 r10 r11 r12 r13 r14 r15 +## Linux preserves: rdi rbp r8 +## +## clobbers ymm0-15 + + +# TRANSPOSE8 r0, r1, r2, r3, r4, r5, r6, r7, t0, t1 +# "transpose" data in {r0...r7} using temps {t0...t1} +# Input looks like: {r0 r1 r2 r3 r4 r5 r6 r7} +# r0 = {a7 a6 a5 a4 a3 a2 a1 a0} +# r1 = {b7 b6 b5 b4 b3 b2 b1 b0} +# r2 = {c7 c6 c5 c4 c3 c2 c1 c0} +# r3 = {d7 d6 d5 d4 d3 d2 d1 d0} +# r4 = {e7 e6 e5 e4 e3 e2 e1 e0} +# r5 = {f7 f6 f5 f4 f3 f2 f1 f0} +# r6 = {g7 g6 g5 g4 g3 g2 g1 g0} +# r7 = {h7 h6 h5 h4 h3 h2 h1 h0} +# +# Output looks like: {r0 r1 r2 r3 r4 r5 r6 r7} +# r0 = {h0 g0 f0 e0 d0 c0 b0 a0} +# r1 = {h1 g1 f1 e1 d1 c1 b1 a1} +# r2 = {h2 g2 f2 e2 d2 c2 b2 a2} +# r3 = {h3 g3 f3 e3 d3 c3 b3 a3} +# r4 = {h4 g4 f4 e4 d4 c4 b4 a4} +# r5 = {h5 g5 f5 e5 d5 c5 b5 a5} +# r6 = {h6 g6 f6 e6 d6 c6 b6 a6} +# r7 = {h7 g7 f7 e7 d7 c7 b7 a7} +# + +.macro TRANSPOSE8 r0 r1 r2 r3 r4 r5 r6 r7 t0 t1 + # process top half (r0..r3) {a...d} + vshufps $0x44, \r1, \r0, \t0 # t0 = {b5 b4 a5 a4 b1 b0 a1 a0} + vshufps $0xEE, \r1, \r0, \r0 # r0 = {b7 b6 a7 a6 b3 b2 a3 a2} + vshufps $0x44, \r3, \r2, \t1 # t1 = {d5 d4 c5 c4 d1 d0 c1 c0} + vshufps $0xEE, \r3, \r2, \r2 # r2 = {d7 d6 c7 c6 d3 d2 c3 c2} + vshufps $0xDD, \t1, \t0, \r3 # r3 = {d5 c5 b5 a5 d1 c1 b1 a1} + vshufps $0x88, \r2, \r0, \r1 # r1 = {d6 c6 b6 a6 d2 c2 b2 a2} + vshufps $0xDD, \r2, \r0, \r0 # r0 = {d7 c7 b7 a7 d3 c3 b3 a3} + vshufps $0x88, \t1, \t0, \t0 # t0 = {d4 c4 b4 a4 d0 c0 b0 a0} + + # use r2 in place of t0 + # process bottom half (r4..r7) {e...h} + vshufps $0x44, \r5, \r4, \r2 # r2 = {f5 f4 e5 e4 f1 f0 e1 e0} + vshufps $0xEE, \r5, \r4, \r4 # r4 = {f7 f6 e7 e6 f3 f2 e3 e2} + vshufps $0x44, \r7, \r6, \t1 # t1 = {h5 h4 g5 g4 h1 h0 g1 g0} + vshufps $0xEE, \r7, \r6, \r6 # r6 = {h7 h6 g7 g6 h3 h2 g3 g2} + vshufps $0xDD, \t1, \r2, \r7 # r7 = {h5 g5 f5 e5 h1 g1 f1 e1} + vshufps $0x88, \r6, \r4, \r5 # r5 = {h6 g6 f6 e6 h2 g2 f2 e2} + vshufps $0xDD, \r6, \r4, \r4 # r4 = {h7 g7 f7 e7 h3 g3 f3 e3} + vshufps $0x88, \t1, \r2, \t1 # t1 = {h4 g4 f4 e4 h0 g0 f0 e0} + + vperm2f128 $0x13, \r1, \r5, \r6 # h6...a6 + vperm2f128 $0x02, \r1, \r5, \r2 # h2...a2 + vperm2f128 $0x13, \r3, \r7, \r5 # h5...a5 + vperm2f128 $0x02, \r3, \r7, \r1 # h1...a1 + vperm2f128 $0x13, \r0, \r4, \r7 # h7...a7 + vperm2f128 $0x02, \r0, \r4, \r3 # h3...a3 + vperm2f128 $0x13, \t0, \t1, \r4 # h4...a4 + vperm2f128 $0x02, \t0, \t1, \r0 # h0...a0 + +.endm +## +## Magic functions defined in FIPS 180-1 +## +# macro MAGIC_F0 F,B,C,D,T ## F = (D ^ (B & (C ^ D))) +.macro MAGIC_F0 regF regB regC regD regT + vpxor \regD, \regC, \regF + vpand \regB, \regF, \regF + vpxor \regD, \regF, \regF +.endm + +# macro MAGIC_F1 F,B,C,D,T ## F = (B ^ C ^ D) +.macro MAGIC_F1 regF regB regC regD regT + vpxor \regC, \regD, \regF + vpxor \regB, \regF, \regF +.endm + +# macro MAGIC_F2 F,B,C,D,T ## F = ((B & C) | (B & D) | (C & D)) +.macro MAGIC_F2 regF regB regC regD regT + vpor \regC, \regB, \regF + vpand \regC, \regB, \regT + vpand \regD, \regF, \regF + vpor \regT, \regF, \regF +.endm + +# macro MAGIC_F3 F,B,C,D,T ## F = (B ^ C ^ D) +.macro MAGIC_F3 regF regB regC regD regT + MAGIC_F1 \regF,\regB,\regC,\regD,\regT +.endm + +# PROLD reg, imm, tmp +.macro PROLD reg imm tmp + vpsrld $(32-\imm), \reg, \tmp + vpslld $\imm, \reg, \reg + vpor \tmp, \reg, \reg +.endm + +.macro PROLD_nd reg imm tmp src + vpsrld $(32-\imm), \src, \tmp + vpslld $\imm, \src, \reg + vpor \tmp, \reg, \reg +.endm + +.macro SHA1_STEP_00_15 regA regB regC regD regE regT regF memW immCNT MAGIC + vpaddd \immCNT, \regE, \regE + vpaddd \memW*32(%rsp), \regE, \regE + PROLD_nd \regT, 5, \regF, \regA + vpaddd \regT, \regE, \regE + \MAGIC \regF, \regB, \regC, \regD, \regT + PROLD \regB, 30, \regT + vpaddd \regF, \regE, \regE +.endm + +.macro SHA1_STEP_16_79 regA regB regC regD regE regT regF memW immCNT MAGIC + vpaddd \immCNT, \regE, \regE + offset = ((\memW - 14) & 15) * 32 + vmovdqu offset(%rsp), W14 + vpxor W14, W16, W16 + offset = ((\memW - 8) & 15) * 32 + vpxor offset(%rsp), W16, W16 + offset = ((\memW - 3) & 15) * 32 + vpxor offset(%rsp), W16, W16 + vpsrld $(32-1), W16, \regF + vpslld $1, W16, W16 + vpor W16, \regF, \regF + + ROTATE_W + + offset = ((\memW - 0) & 15) * 32 + vmovdqu \regF, offset(%rsp) + vpaddd \regF, \regE, \regE + PROLD_nd \regT, 5, \regF, \regA + vpaddd \regT, \regE, \regE + \MAGIC \regF,\regB,\regC,\regD,\regT ## FUN = MAGIC_Fi(B,C,D) + PROLD \regB,30, \regT + vpaddd \regF, \regE, \regE +.endm + +######################################################################## +######################################################################## +######################################################################## + +## FRAMESZ plus pushes must be an odd multiple of 8 +YMM_SAVE = (15-15)*32 +FRAMESZ = 32*16 + YMM_SAVE +_YMM = FRAMESZ - YMM_SAVE + +#define VMOVPS vmovups + +IDX = %rax +inp0 = %r9 +inp1 = %r10 +inp2 = %r11 +inp3 = %r12 +inp4 = %r13 +inp5 = %r14 +inp6 = %r15 +inp7 = %rcx +arg1 = %rdi +arg2 = %rsi +RSP_SAVE = %rdx + +# ymm0 A +# ymm1 B +# ymm2 C +# ymm3 D +# ymm4 E +# ymm5 F AA +# ymm6 T0 BB +# ymm7 T1 CC +# ymm8 T2 DD +# ymm9 T3 EE +# ymm10 T4 TMP +# ymm11 T5 FUN +# ymm12 T6 K +# ymm13 T7 W14 +# ymm14 T8 W15 +# ymm15 T9 W16 + + +A = %ymm0 +B = %ymm1 +C = %ymm2 +D = %ymm3 +E = %ymm4 +F = %ymm5 +T0 = %ymm6 +T1 = %ymm7 +T2 = %ymm8 +T3 = %ymm9 +T4 = %ymm10 +T5 = %ymm11 +T6 = %ymm12 +T7 = %ymm13 +T8 = %ymm14 +T9 = %ymm15 + +AA = %ymm5 +BB = %ymm6 +CC = %ymm7 +DD = %ymm8 +EE = %ymm9 +TMP = %ymm10 +FUN = %ymm11 +K = %ymm12 +W14 = %ymm13 +W15 = %ymm14 +W16 = %ymm15 + +.macro ROTATE_ARGS + TMP_ = E + E = D + D = C + C = B + B = A + A = TMP_ +.endm + +.macro ROTATE_W +TMP_ = W16 +W16 = W15 +W15 = W14 +W14 = TMP_ +.endm + +# 8 streams x 5 32bit words per digest x 4 bytes per word +#define DIGEST_SIZE (8*5*4) + +.align 32 + +# void sha1_x8_avx2(void **input_data, UINT128 *digest, UINT32 size) +# arg 1 : pointer to array[4] of pointer to input data +# arg 2 : size (in blocks) ;; assumed to be >= 1 +# +ENTRY(sha1_x8_avx2) + + # save callee-saved clobbered registers to comply with C function ABI + push %r12 + push %r13 + push %r14 + push %r15 + + #save rsp + mov %rsp, RSP_SAVE + sub $FRAMESZ, %rsp + + #align rsp to 32 Bytes + and $~0x1F, %rsp + + ## Initialize digests + vmovdqu 0*32(arg1), A + vmovdqu 1*32(arg1), B + vmovdqu 2*32(arg1), C + vmovdqu 3*32(arg1), D + vmovdqu 4*32(arg1), E + + ## transpose input onto stack + mov _data_ptr+0*8(arg1),inp0 + mov _data_ptr+1*8(arg1),inp1 + mov _data_ptr+2*8(arg1),inp2 + mov _data_ptr+3*8(arg1),inp3 + mov _data_ptr+4*8(arg1),inp4 + mov _data_ptr+5*8(arg1),inp5 + mov _data_ptr+6*8(arg1),inp6 + mov _data_ptr+7*8(arg1),inp7 + + xor IDX, IDX +lloop: + vmovdqu PSHUFFLE_BYTE_FLIP_MASK(%rip), F + I=0 +.rep 2 + VMOVPS (inp0, IDX), T0 + VMOVPS (inp1, IDX), T1 + VMOVPS (inp2, IDX), T2 + VMOVPS (inp3, IDX), T3 + VMOVPS (inp4, IDX), T4 + VMOVPS (inp5, IDX), T5 + VMOVPS (inp6, IDX), T6 + VMOVPS (inp7, IDX), T7 + + TRANSPOSE8 T0, T1, T2, T3, T4, T5, T6, T7, T8, T9 + vpshufb F, T0, T0 + vmovdqu T0, (I*8)*32(%rsp) + vpshufb F, T1, T1 + vmovdqu T1, (I*8+1)*32(%rsp) + vpshufb F, T2, T2 + vmovdqu T2, (I*8+2)*32(%rsp) + vpshufb F, T3, T3 + vmovdqu T3, (I*8+3)*32(%rsp) + vpshufb F, T4, T4 + vmovdqu T4, (I*8+4)*32(%rsp) + vpshufb F, T5, T5 + vmovdqu T5, (I*8+5)*32(%rsp) + vpshufb F, T6, T6 + vmovdqu T6, (I*8+6)*32(%rsp) + vpshufb F, T7, T7 + vmovdqu T7, (I*8+7)*32(%rsp) + add $32, IDX + I = (I+1) +.endr + # save old digests + vmovdqu A,AA + vmovdqu B,BB + vmovdqu C,CC + vmovdqu D,DD + vmovdqu E,EE + +## +## perform 0-79 steps +## + vmovdqu K00_19(%rip), K +## do rounds 0...15 + I = 0 +.rep 16 + SHA1_STEP_00_15 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F0 + ROTATE_ARGS + I = (I+1) +.endr + +## do rounds 16...19 + vmovdqu ((16 - 16) & 15) * 32 (%rsp), W16 + vmovdqu ((16 - 15) & 15) * 32 (%rsp), W15 +.rep 4 + SHA1_STEP_16_79 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F0 + ROTATE_ARGS + I = (I+1) +.endr + +## do rounds 20...39 + vmovdqu K20_39(%rip), K +.rep 20 + SHA1_STEP_16_79 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F1 + ROTATE_ARGS + I = (I+1) +.endr + +## do rounds 40...59 + vmovdqu K40_59(%rip), K +.rep 20 + SHA1_STEP_16_79 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F2 + ROTATE_ARGS + I = (I+1) +.endr + +## do rounds 60...79 + vmovdqu K60_79(%rip), K +.rep 20 + SHA1_STEP_16_79 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F3 + ROTATE_ARGS + I = (I+1) +.endr + + vpaddd AA,A,A + vpaddd BB,B,B + vpaddd CC,C,C + vpaddd DD,D,D + vpaddd EE,E,E + + sub $1, arg2 + jne lloop + + # write out digests + vmovdqu A, 0*32(arg1) + vmovdqu B, 1*32(arg1) + vmovdqu C, 2*32(arg1) + vmovdqu D, 3*32(arg1) + vmovdqu E, 4*32(arg1) + + # update input pointers + add IDX, inp0 + add IDX, inp1 + add IDX, inp2 + add IDX, inp3 + add IDX, inp4 + add IDX, inp5 + add IDX, inp6 + add IDX, inp7 + mov inp0, _data_ptr (arg1) + mov inp1, _data_ptr + 1*8(arg1) + mov inp2, _data_ptr + 2*8(arg1) + mov inp3, _data_ptr + 3*8(arg1) + mov inp4, _data_ptr + 4*8(arg1) + mov inp5, _data_ptr + 5*8(arg1) + mov inp6, _data_ptr + 6*8(arg1) + mov inp7, _data_ptr + 7*8(arg1) + + ################ + ## Postamble + + mov RSP_SAVE, %rsp + + # restore callee-saved clobbered registers + pop %r15 + pop %r14 + pop %r13 + pop %r12 + + ret +ENDPROC(sha1_x8_avx2) + + +.section .rodata.cst32.K00_19, "aM", @progbits, 32 +.align 32 +K00_19: +.octa 0x5A8279995A8279995A8279995A827999 +.octa 0x5A8279995A8279995A8279995A827999 + +.section .rodata.cst32.K20_39, "aM", @progbits, 32 +.align 32 +K20_39: +.octa 0x6ED9EBA16ED9EBA16ED9EBA16ED9EBA1 +.octa 0x6ED9EBA16ED9EBA16ED9EBA16ED9EBA1 + +.section .rodata.cst32.K40_59, "aM", @progbits, 32 +.align 32 +K40_59: +.octa 0x8F1BBCDC8F1BBCDC8F1BBCDC8F1BBCDC +.octa 0x8F1BBCDC8F1BBCDC8F1BBCDC8F1BBCDC + +.section .rodata.cst32.K60_79, "aM", @progbits, 32 +.align 32 +K60_79: +.octa 0xCA62C1D6CA62C1D6CA62C1D6CA62C1D6 +.octa 0xCA62C1D6CA62C1D6CA62C1D6CA62C1D6 + +.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32 +.align 32 +PSHUFFLE_BYTE_FLIP_MASK: +.octa 0x0c0d0e0f08090a0b0405060700010203 +.octa 0x0c0d0e0f08090a0b0405060700010203 diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S new file mode 100644 index 000000000..9f712a7df --- /dev/null +++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S @@ -0,0 +1,711 @@ +/* + * Implement fast SHA-1 with AVX2 instructions. (x86_64) + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Ilya Albrekht <ilya.albrekht@intel.com> + * Maxim Locktyukhin <maxim.locktyukhin@intel.com> + * Ronen Zohar <ronen.zohar@intel.com> + * Chandramouli Narayanan <mouli@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +/* + * SHA-1 implementation with Intel(R) AVX2 instruction set extensions. + * + *This implementation is based on the previous SSSE3 release: + *Visit http://software.intel.com/en-us/articles/ + *and refer to improving-the-performance-of-the-secure-hash-algorithm-1/ + * + *Updates 20-byte SHA-1 record in 'hash' for even number of + *'num_blocks' consecutive 64-byte blocks + * + *extern "C" void sha1_transform_avx2( + * int *hash, const char* input, size_t num_blocks ); + */ + +#include <linux/linkage.h> + +#define CTX %rdi /* arg1 */ +#define BUF %rsi /* arg2 */ +#define CNT %rdx /* arg3 */ + +#define REG_A %ecx +#define REG_B %esi +#define REG_C %edi +#define REG_D %eax +#define REG_E %edx +#define REG_TB %ebx +#define REG_TA %r12d +#define REG_RA %rcx +#define REG_RB %rsi +#define REG_RC %rdi +#define REG_RD %rax +#define REG_RE %rdx +#define REG_RTA %r12 +#define REG_RTB %rbx +#define REG_T1 %r11d +#define xmm_mov vmovups +#define avx2_zeroupper vzeroupper +#define RND_F1 1 +#define RND_F2 2 +#define RND_F3 3 + +.macro REGALLOC + .set A, REG_A + .set B, REG_B + .set C, REG_C + .set D, REG_D + .set E, REG_E + .set TB, REG_TB + .set TA, REG_TA + + .set RA, REG_RA + .set RB, REG_RB + .set RC, REG_RC + .set RD, REG_RD + .set RE, REG_RE + + .set RTA, REG_RTA + .set RTB, REG_RTB + + .set T1, REG_T1 +.endm + +#define HASH_PTR %r9 +#define BLOCKS_CTR %r8 +#define BUFFER_PTR %r10 +#define BUFFER_PTR2 %r13 + +#define PRECALC_BUF %r14 +#define WK_BUF %r15 + +#define W_TMP %xmm0 +#define WY_TMP %ymm0 +#define WY_TMP2 %ymm9 + +# AVX2 variables +#define WY0 %ymm3 +#define WY4 %ymm5 +#define WY08 %ymm7 +#define WY12 %ymm8 +#define WY16 %ymm12 +#define WY20 %ymm13 +#define WY24 %ymm14 +#define WY28 %ymm15 + +#define YMM_SHUFB_BSWAP %ymm10 + +/* + * Keep 2 iterations precalculated at a time: + * - 80 DWORDs per iteration * 2 + */ +#define W_SIZE (80*2*2 +16) + +#define WK(t) ((((t) % 80) / 4)*32 + ( (t) % 4)*4 + ((t)/80)*16 )(WK_BUF) +#define PRECALC_WK(t) ((t)*2*2)(PRECALC_BUF) + + +.macro UPDATE_HASH hash, val + add \hash, \val + mov \val, \hash +.endm + +.macro PRECALC_RESET_WY + .set WY_00, WY0 + .set WY_04, WY4 + .set WY_08, WY08 + .set WY_12, WY12 + .set WY_16, WY16 + .set WY_20, WY20 + .set WY_24, WY24 + .set WY_28, WY28 + .set WY_32, WY_00 +.endm + +.macro PRECALC_ROTATE_WY + /* Rotate macros */ + .set WY_32, WY_28 + .set WY_28, WY_24 + .set WY_24, WY_20 + .set WY_20, WY_16 + .set WY_16, WY_12 + .set WY_12, WY_08 + .set WY_08, WY_04 + .set WY_04, WY_00 + .set WY_00, WY_32 + + /* Define register aliases */ + .set WY, WY_00 + .set WY_minus_04, WY_04 + .set WY_minus_08, WY_08 + .set WY_minus_12, WY_12 + .set WY_minus_16, WY_16 + .set WY_minus_20, WY_20 + .set WY_minus_24, WY_24 + .set WY_minus_28, WY_28 + .set WY_minus_32, WY +.endm + +.macro PRECALC_00_15 + .if (i == 0) # Initialize and rotate registers + PRECALC_RESET_WY + PRECALC_ROTATE_WY + .endif + + /* message scheduling pre-compute for rounds 0-15 */ + .if ((i & 7) == 0) + /* + * blended AVX2 and ALU instruction scheduling + * 1 vector iteration per 8 rounds + */ + vmovdqu (i * 2)(BUFFER_PTR), W_TMP + .elseif ((i & 7) == 1) + vinsertf128 $1, ((i-1) * 2)(BUFFER_PTR2),\ + WY_TMP, WY_TMP + .elseif ((i & 7) == 2) + vpshufb YMM_SHUFB_BSWAP, WY_TMP, WY + .elseif ((i & 7) == 4) + vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP + .elseif ((i & 7) == 7) + vmovdqu WY_TMP, PRECALC_WK(i&~7) + + PRECALC_ROTATE_WY + .endif +.endm + +.macro PRECALC_16_31 + /* + * message scheduling pre-compute for rounds 16-31 + * calculating last 32 w[i] values in 8 XMM registers + * pre-calculate K+w[i] values and store to mem + * for later load by ALU add instruction + * + * "brute force" vectorization for rounds 16-31 only + * due to w[i]->w[i-3] dependency + */ + .if ((i & 7) == 0) + /* + * blended AVX2 and ALU instruction scheduling + * 1 vector iteration per 8 rounds + */ + /* w[i-14] */ + vpalignr $8, WY_minus_16, WY_minus_12, WY + vpsrldq $4, WY_minus_04, WY_TMP /* w[i-3] */ + .elseif ((i & 7) == 1) + vpxor WY_minus_08, WY, WY + vpxor WY_minus_16, WY_TMP, WY_TMP + .elseif ((i & 7) == 2) + vpxor WY_TMP, WY, WY + vpslldq $12, WY, WY_TMP2 + .elseif ((i & 7) == 3) + vpslld $1, WY, WY_TMP + vpsrld $31, WY, WY + .elseif ((i & 7) == 4) + vpor WY, WY_TMP, WY_TMP + vpslld $2, WY_TMP2, WY + .elseif ((i & 7) == 5) + vpsrld $30, WY_TMP2, WY_TMP2 + vpxor WY, WY_TMP, WY_TMP + .elseif ((i & 7) == 7) + vpxor WY_TMP2, WY_TMP, WY + vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP + vmovdqu WY_TMP, PRECALC_WK(i&~7) + + PRECALC_ROTATE_WY + .endif +.endm + +.macro PRECALC_32_79 + /* + * in SHA-1 specification: + * w[i] = (w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16]) rol 1 + * instead we do equal: + * w[i] = (w[i-6] ^ w[i-16] ^ w[i-28] ^ w[i-32]) rol 2 + * allows more efficient vectorization + * since w[i]=>w[i-3] dependency is broken + */ + + .if ((i & 7) == 0) + /* + * blended AVX2 and ALU instruction scheduling + * 1 vector iteration per 8 rounds + */ + vpalignr $8, WY_minus_08, WY_minus_04, WY_TMP + .elseif ((i & 7) == 1) + /* W is W_minus_32 before xor */ + vpxor WY_minus_28, WY, WY + .elseif ((i & 7) == 2) + vpxor WY_minus_16, WY_TMP, WY_TMP + .elseif ((i & 7) == 3) + vpxor WY_TMP, WY, WY + .elseif ((i & 7) == 4) + vpslld $2, WY, WY_TMP + .elseif ((i & 7) == 5) + vpsrld $30, WY, WY + vpor WY, WY_TMP, WY + .elseif ((i & 7) == 7) + vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP + vmovdqu WY_TMP, PRECALC_WK(i&~7) + + PRECALC_ROTATE_WY + .endif +.endm + +.macro PRECALC r, s + .set i, \r + + .if (i < 40) + .set K_XMM, 32*0 + .elseif (i < 80) + .set K_XMM, 32*1 + .elseif (i < 120) + .set K_XMM, 32*2 + .else + .set K_XMM, 32*3 + .endif + + .if (i<32) + PRECALC_00_15 \s + .elseif (i<64) + PRECALC_16_31 \s + .elseif (i < 160) + PRECALC_32_79 \s + .endif +.endm + +.macro ROTATE_STATE + .set T_REG, E + .set E, D + .set D, C + .set C, B + .set B, TB + .set TB, A + .set A, T_REG + + .set T_REG, RE + .set RE, RD + .set RD, RC + .set RC, RB + .set RB, RTB + .set RTB, RA + .set RA, T_REG +.endm + +/* Macro relies on saved ROUND_Fx */ + +.macro RND_FUN f, r + .if (\f == RND_F1) + ROUND_F1 \r + .elseif (\f == RND_F2) + ROUND_F2 \r + .elseif (\f == RND_F3) + ROUND_F3 \r + .endif +.endm + +.macro RR r + .set round_id, (\r % 80) + + .if (round_id == 0) /* Precalculate F for first round */ + .set ROUND_FUNC, RND_F1 + mov B, TB + + rorx $(32-30), B, B /* b>>>2 */ + andn D, TB, T1 + and C, TB + xor T1, TB + .endif + + RND_FUN ROUND_FUNC, \r + ROTATE_STATE + + .if (round_id == 18) + .set ROUND_FUNC, RND_F2 + .elseif (round_id == 38) + .set ROUND_FUNC, RND_F3 + .elseif (round_id == 58) + .set ROUND_FUNC, RND_F2 + .endif + + .set round_id, ( (\r+1) % 80) + + RND_FUN ROUND_FUNC, (\r+1) + ROTATE_STATE +.endm + +.macro ROUND_F1 r + add WK(\r), E + + andn C, A, T1 /* ~b&d */ + lea (RE,RTB), E /* Add F from the previous round */ + + rorx $(32-5), A, TA /* T2 = A >>> 5 */ + rorx $(32-30),A, TB /* b>>>2 for next round */ + + PRECALC (\r) /* msg scheduling for next 2 blocks */ + + /* + * Calculate F for the next round + * (b & c) ^ andn[b, d] + */ + and B, A /* b&c */ + xor T1, A /* F1 = (b&c) ^ (~b&d) */ + + lea (RE,RTA), E /* E += A >>> 5 */ +.endm + +.macro ROUND_F2 r + add WK(\r), E + lea (RE,RTB), E /* Add F from the previous round */ + + /* Calculate F for the next round */ + rorx $(32-5), A, TA /* T2 = A >>> 5 */ + .if ((round_id) < 79) + rorx $(32-30), A, TB /* b>>>2 for next round */ + .endif + PRECALC (\r) /* msg scheduling for next 2 blocks */ + + .if ((round_id) < 79) + xor B, A + .endif + + add TA, E /* E += A >>> 5 */ + + .if ((round_id) < 79) + xor C, A + .endif +.endm + +.macro ROUND_F3 r + add WK(\r), E + PRECALC (\r) /* msg scheduling for next 2 blocks */ + + lea (RE,RTB), E /* Add F from the previous round */ + + mov B, T1 + or A, T1 + + rorx $(32-5), A, TA /* T2 = A >>> 5 */ + rorx $(32-30), A, TB /* b>>>2 for next round */ + + /* Calculate F for the next round + * (b and c) or (d and (b or c)) + */ + and C, T1 + and B, A + or T1, A + + add TA, E /* E += A >>> 5 */ + +.endm + +/* Add constant only if (%2 > %3) condition met (uses RTA as temp) + * %1 + %2 >= %3 ? %4 : 0 + */ +.macro ADD_IF_GE a, b, c, d + mov \a, RTA + add $\d, RTA + cmp $\c, \b + cmovge RTA, \a +.endm + +/* + * macro implements 80 rounds of SHA-1, for multiple blocks with s/w pipelining + */ +.macro SHA1_PIPELINED_MAIN_BODY + + REGALLOC + + mov (HASH_PTR), A + mov 4(HASH_PTR), B + mov 8(HASH_PTR), C + mov 12(HASH_PTR), D + mov 16(HASH_PTR), E + + mov %rsp, PRECALC_BUF + lea (2*4*80+32)(%rsp), WK_BUF + + # Precalc WK for first 2 blocks + ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 2, 64 + .set i, 0 + .rept 160 + PRECALC i + .set i, i + 1 + .endr + + /* Go to next block if needed */ + ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 3, 128 + ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128 + xchg WK_BUF, PRECALC_BUF + + .align 32 +_loop: + /* + * code loops through more than one block + * we use K_BASE value as a signal of a last block, + * it is set below by: cmovae BUFFER_PTR, K_BASE + */ + test BLOCKS_CTR, BLOCKS_CTR + jnz _begin + .align 32 + jmp _end + .align 32 +_begin: + + /* + * Do first block + * rounds: 0,2,4,6,8 + */ + .set j, 0 + .rept 5 + RR j + .set j, j+2 + .endr + + jmp _loop0 +_loop0: + + /* + * rounds: + * 10,12,14,16,18 + * 20,22,24,26,28 + * 30,32,34,36,38 + * 40,42,44,46,48 + * 50,52,54,56,58 + */ + .rept 25 + RR j + .set j, j+2 + .endr + + /* Update Counter */ + sub $1, BLOCKS_CTR + /* Move to the next block only if needed*/ + ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 4, 128 + /* + * rounds + * 60,62,64,66,68 + * 70,72,74,76,78 + */ + .rept 10 + RR j + .set j, j+2 + .endr + + UPDATE_HASH (HASH_PTR), A + UPDATE_HASH 4(HASH_PTR), TB + UPDATE_HASH 8(HASH_PTR), C + UPDATE_HASH 12(HASH_PTR), D + UPDATE_HASH 16(HASH_PTR), E + + test BLOCKS_CTR, BLOCKS_CTR + jz _loop + + mov TB, B + + /* Process second block */ + /* + * rounds + * 0+80, 2+80, 4+80, 6+80, 8+80 + * 10+80,12+80,14+80,16+80,18+80 + */ + + .set j, 0 + .rept 10 + RR j+80 + .set j, j+2 + .endr + + jmp _loop1 +_loop1: + /* + * rounds + * 20+80,22+80,24+80,26+80,28+80 + * 30+80,32+80,34+80,36+80,38+80 + */ + .rept 10 + RR j+80 + .set j, j+2 + .endr + + jmp _loop2 +_loop2: + + /* + * rounds + * 40+80,42+80,44+80,46+80,48+80 + * 50+80,52+80,54+80,56+80,58+80 + */ + .rept 10 + RR j+80 + .set j, j+2 + .endr + + /* update counter */ + sub $1, BLOCKS_CTR + /* Move to the next block only if needed*/ + ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128 + + jmp _loop3 +_loop3: + + /* + * rounds + * 60+80,62+80,64+80,66+80,68+80 + * 70+80,72+80,74+80,76+80,78+80 + */ + .rept 10 + RR j+80 + .set j, j+2 + .endr + + UPDATE_HASH (HASH_PTR), A + UPDATE_HASH 4(HASH_PTR), TB + UPDATE_HASH 8(HASH_PTR), C + UPDATE_HASH 12(HASH_PTR), D + UPDATE_HASH 16(HASH_PTR), E + + /* Reset state for AVX2 reg permutation */ + mov A, TA + mov TB, A + mov C, TB + mov E, C + mov D, B + mov TA, D + + REGALLOC + + xchg WK_BUF, PRECALC_BUF + + jmp _loop + + .align 32 + _end: + +.endm +/* + * macro implements SHA-1 function's body for several 64-byte blocks + * param: function's name + */ +.macro SHA1_VECTOR_ASM name + ENTRY(\name) + + push %rbx + push %r12 + push %r13 + push %r14 + push %r15 + + RESERVE_STACK = (W_SIZE*4 + 8+24) + + /* Align stack */ + mov %rsp, %rbx + and $~(0x20-1), %rsp + push %rbx + sub $RESERVE_STACK, %rsp + + avx2_zeroupper + + /* Setup initial values */ + mov CTX, HASH_PTR + mov BUF, BUFFER_PTR + + mov BUF, BUFFER_PTR2 + mov CNT, BLOCKS_CTR + + xmm_mov BSWAP_SHUFB_CTL(%rip), YMM_SHUFB_BSWAP + + SHA1_PIPELINED_MAIN_BODY + + avx2_zeroupper + + add $RESERVE_STACK, %rsp + pop %rsp + + pop %r15 + pop %r14 + pop %r13 + pop %r12 + pop %rbx + + ret + + ENDPROC(\name) +.endm + +.section .rodata + +#define K1 0x5a827999 +#define K2 0x6ed9eba1 +#define K3 0x8f1bbcdc +#define K4 0xca62c1d6 + +.align 128 +K_XMM_AR: + .long K1, K1, K1, K1 + .long K1, K1, K1, K1 + .long K2, K2, K2, K2 + .long K2, K2, K2, K2 + .long K3, K3, K3, K3 + .long K3, K3, K3, K3 + .long K4, K4, K4, K4 + .long K4, K4, K4, K4 + +BSWAP_SHUFB_CTL: + .long 0x00010203 + .long 0x04050607 + .long 0x08090a0b + .long 0x0c0d0e0f + .long 0x00010203 + .long 0x04050607 + .long 0x08090a0b + .long 0x0c0d0e0f +.text + +SHA1_VECTOR_ASM sha1_transform_avx2 diff --git a/arch/x86/crypto/sha1_ni_asm.S b/arch/x86/crypto/sha1_ni_asm.S new file mode 100644 index 000000000..ebbdba72a --- /dev/null +++ b/arch/x86/crypto/sha1_ni_asm.S @@ -0,0 +1,304 @@ +/* + * Intel SHA Extensions optimized implementation of a SHA-1 update function + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Sean Gulley <sean.m.gulley@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <linux/linkage.h> + +#define DIGEST_PTR %rdi /* 1st arg */ +#define DATA_PTR %rsi /* 2nd arg */ +#define NUM_BLKS %rdx /* 3rd arg */ + +#define RSPSAVE %rax + +/* gcc conversion */ +#define FRAME_SIZE 32 /* space for 2x16 bytes */ + +#define ABCD %xmm0 +#define E0 %xmm1 /* Need two E's b/c they ping pong */ +#define E1 %xmm2 +#define MSG0 %xmm3 +#define MSG1 %xmm4 +#define MSG2 %xmm5 +#define MSG3 %xmm6 +#define SHUF_MASK %xmm7 + + +/* + * Intel SHA Extensions optimized implementation of a SHA-1 update function + * + * The function takes a pointer to the current hash values, a pointer to the + * input data, and a number of 64 byte blocks to process. Once all blocks have + * been processed, the digest pointer is updated with the resulting hash value. + * The function only processes complete blocks, there is no functionality to + * store partial blocks. All message padding and hash value initialization must + * be done outside the update function. + * + * The indented lines in the loop are instructions related to rounds processing. + * The non-indented lines are instructions related to the message schedule. + * + * void sha1_ni_transform(uint32_t *digest, const void *data, + uint32_t numBlocks) + * digest : pointer to digest + * data: pointer to input data + * numBlocks: Number of blocks to process + */ +.text +.align 32 +ENTRY(sha1_ni_transform) + mov %rsp, RSPSAVE + sub $FRAME_SIZE, %rsp + and $~0xF, %rsp + + shl $6, NUM_BLKS /* convert to bytes */ + jz .Ldone_hash + add DATA_PTR, NUM_BLKS /* pointer to end of data */ + + /* load initial hash values */ + pinsrd $3, 1*16(DIGEST_PTR), E0 + movdqu 0*16(DIGEST_PTR), ABCD + pand UPPER_WORD_MASK(%rip), E0 + pshufd $0x1B, ABCD, ABCD + + movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK + +.Lloop0: + /* Save hash values for addition after rounds */ + movdqa E0, (0*16)(%rsp) + movdqa ABCD, (1*16)(%rsp) + + /* Rounds 0-3 */ + movdqu 0*16(DATA_PTR), MSG0 + pshufb SHUF_MASK, MSG0 + paddd MSG0, E0 + movdqa ABCD, E1 + sha1rnds4 $0, E0, ABCD + + /* Rounds 4-7 */ + movdqu 1*16(DATA_PTR), MSG1 + pshufb SHUF_MASK, MSG1 + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1rnds4 $0, E1, ABCD + sha1msg1 MSG1, MSG0 + + /* Rounds 8-11 */ + movdqu 2*16(DATA_PTR), MSG2 + pshufb SHUF_MASK, MSG2 + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1rnds4 $0, E0, ABCD + sha1msg1 MSG2, MSG1 + pxor MSG2, MSG0 + + /* Rounds 12-15 */ + movdqu 3*16(DATA_PTR), MSG3 + pshufb SHUF_MASK, MSG3 + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1msg2 MSG3, MSG0 + sha1rnds4 $0, E1, ABCD + sha1msg1 MSG3, MSG2 + pxor MSG3, MSG1 + + /* Rounds 16-19 */ + sha1nexte MSG0, E0 + movdqa ABCD, E1 + sha1msg2 MSG0, MSG1 + sha1rnds4 $0, E0, ABCD + sha1msg1 MSG0, MSG3 + pxor MSG0, MSG2 + + /* Rounds 20-23 */ + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1msg2 MSG1, MSG2 + sha1rnds4 $1, E1, ABCD + sha1msg1 MSG1, MSG0 + pxor MSG1, MSG3 + + /* Rounds 24-27 */ + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1msg2 MSG2, MSG3 + sha1rnds4 $1, E0, ABCD + sha1msg1 MSG2, MSG1 + pxor MSG2, MSG0 + + /* Rounds 28-31 */ + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1msg2 MSG3, MSG0 + sha1rnds4 $1, E1, ABCD + sha1msg1 MSG3, MSG2 + pxor MSG3, MSG1 + + /* Rounds 32-35 */ + sha1nexte MSG0, E0 + movdqa ABCD, E1 + sha1msg2 MSG0, MSG1 + sha1rnds4 $1, E0, ABCD + sha1msg1 MSG0, MSG3 + pxor MSG0, MSG2 + + /* Rounds 36-39 */ + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1msg2 MSG1, MSG2 + sha1rnds4 $1, E1, ABCD + sha1msg1 MSG1, MSG0 + pxor MSG1, MSG3 + + /* Rounds 40-43 */ + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1msg2 MSG2, MSG3 + sha1rnds4 $2, E0, ABCD + sha1msg1 MSG2, MSG1 + pxor MSG2, MSG0 + + /* Rounds 44-47 */ + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1msg2 MSG3, MSG0 + sha1rnds4 $2, E1, ABCD + sha1msg1 MSG3, MSG2 + pxor MSG3, MSG1 + + /* Rounds 48-51 */ + sha1nexte MSG0, E0 + movdqa ABCD, E1 + sha1msg2 MSG0, MSG1 + sha1rnds4 $2, E0, ABCD + sha1msg1 MSG0, MSG3 + pxor MSG0, MSG2 + + /* Rounds 52-55 */ + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1msg2 MSG1, MSG2 + sha1rnds4 $2, E1, ABCD + sha1msg1 MSG1, MSG0 + pxor MSG1, MSG3 + + /* Rounds 56-59 */ + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1msg2 MSG2, MSG3 + sha1rnds4 $2, E0, ABCD + sha1msg1 MSG2, MSG1 + pxor MSG2, MSG0 + + /* Rounds 60-63 */ + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1msg2 MSG3, MSG0 + sha1rnds4 $3, E1, ABCD + sha1msg1 MSG3, MSG2 + pxor MSG3, MSG1 + + /* Rounds 64-67 */ + sha1nexte MSG0, E0 + movdqa ABCD, E1 + sha1msg2 MSG0, MSG1 + sha1rnds4 $3, E0, ABCD + sha1msg1 MSG0, MSG3 + pxor MSG0, MSG2 + + /* Rounds 68-71 */ + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1msg2 MSG1, MSG2 + sha1rnds4 $3, E1, ABCD + pxor MSG1, MSG3 + + /* Rounds 72-75 */ + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1msg2 MSG2, MSG3 + sha1rnds4 $3, E0, ABCD + + /* Rounds 76-79 */ + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1rnds4 $3, E1, ABCD + + /* Add current hash values with previously saved */ + sha1nexte (0*16)(%rsp), E0 + paddd (1*16)(%rsp), ABCD + + /* Increment data pointer and loop if more to process */ + add $64, DATA_PTR + cmp NUM_BLKS, DATA_PTR + jne .Lloop0 + + /* Write hash values back in the correct order */ + pshufd $0x1B, ABCD, ABCD + movdqu ABCD, 0*16(DIGEST_PTR) + pextrd $3, E0, 1*16(DIGEST_PTR) + +.Ldone_hash: + mov RSPSAVE, %rsp + + ret +ENDPROC(sha1_ni_transform) + +.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16 +.align 16 +PSHUFFLE_BYTE_FLIP_MASK: + .octa 0x000102030405060708090a0b0c0d0e0f + +.section .rodata.cst16.UPPER_WORD_MASK, "aM", @progbits, 16 +.align 16 +UPPER_WORD_MASK: + .octa 0xFFFFFFFF000000000000000000000000 diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S new file mode 100644 index 000000000..613d0bfc3 --- /dev/null +++ b/arch/x86/crypto/sha1_ssse3_asm.S @@ -0,0 +1,557 @@ +/* + * This is a SIMD SHA-1 implementation. It requires the Intel(R) Supplemental + * SSE3 instruction set extensions introduced in Intel Core Microarchitecture + * processors. CPUs supporting Intel(R) AVX extensions will get an additional + * boost. + * + * This work was inspired by the vectorized implementation of Dean Gaudet. + * Additional information on it can be found at: + * http://www.arctic.org/~dean/crypto/sha1.html + * + * It was improved upon with more efficient vectorization of the message + * scheduling. This implementation has also been optimized for all current and + * several future generations of Intel CPUs. + * + * See this article for more information about the implementation details: + * http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1/ + * + * Copyright (C) 2010, Intel Corp. + * Authors: Maxim Locktyukhin <maxim.locktyukhin@intel.com> + * Ronen Zohar <ronen.zohar@intel.com> + * + * Converted to AT&T syntax and adapted for inclusion in the Linux kernel: + * Author: Mathias Krause <minipli@googlemail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/linkage.h> + +#define CTX %rdi // arg1 +#define BUF %rsi // arg2 +#define CNT %rdx // arg3 + +#define REG_A %ecx +#define REG_B %esi +#define REG_C %edi +#define REG_D %r12d +#define REG_E %edx + +#define REG_T1 %eax +#define REG_T2 %ebx + +#define K_BASE %r8 +#define HASH_PTR %r9 +#define BUFFER_PTR %r10 +#define BUFFER_END %r11 + +#define W_TMP1 %xmm0 +#define W_TMP2 %xmm9 + +#define W0 %xmm1 +#define W4 %xmm2 +#define W8 %xmm3 +#define W12 %xmm4 +#define W16 %xmm5 +#define W20 %xmm6 +#define W24 %xmm7 +#define W28 %xmm8 + +#define XMM_SHUFB_BSWAP %xmm10 + +/* we keep window of 64 w[i]+K pre-calculated values in a circular buffer */ +#define WK(t) (((t) & 15) * 4)(%rsp) +#define W_PRECALC_AHEAD 16 + +/* + * This macro implements the SHA-1 function's body for single 64-byte block + * param: function's name + */ +.macro SHA1_VECTOR_ASM name + ENTRY(\name) + + push %rbx + push %r12 + push %rbp + mov %rsp, %rbp + + sub $64, %rsp # allocate workspace + and $~15, %rsp # align stack + + mov CTX, HASH_PTR + mov BUF, BUFFER_PTR + + shl $6, CNT # multiply by 64 + add BUF, CNT + mov CNT, BUFFER_END + + lea K_XMM_AR(%rip), K_BASE + xmm_mov BSWAP_SHUFB_CTL(%rip), XMM_SHUFB_BSWAP + + SHA1_PIPELINED_MAIN_BODY + + # cleanup workspace + mov $8, %ecx + mov %rsp, %rdi + xor %eax, %eax + rep stosq + + mov %rbp, %rsp # deallocate workspace + pop %rbp + pop %r12 + pop %rbx + ret + + ENDPROC(\name) +.endm + +/* + * This macro implements 80 rounds of SHA-1 for one 64-byte block + */ +.macro SHA1_PIPELINED_MAIN_BODY + INIT_REGALLOC + + mov (HASH_PTR), A + mov 4(HASH_PTR), B + mov 8(HASH_PTR), C + mov 12(HASH_PTR), D + mov 16(HASH_PTR), E + + .set i, 0 + .rept W_PRECALC_AHEAD + W_PRECALC i + .set i, (i+1) + .endr + +.align 4 +1: + RR F1,A,B,C,D,E,0 + RR F1,D,E,A,B,C,2 + RR F1,B,C,D,E,A,4 + RR F1,E,A,B,C,D,6 + RR F1,C,D,E,A,B,8 + + RR F1,A,B,C,D,E,10 + RR F1,D,E,A,B,C,12 + RR F1,B,C,D,E,A,14 + RR F1,E,A,B,C,D,16 + RR F1,C,D,E,A,B,18 + + RR F2,A,B,C,D,E,20 + RR F2,D,E,A,B,C,22 + RR F2,B,C,D,E,A,24 + RR F2,E,A,B,C,D,26 + RR F2,C,D,E,A,B,28 + + RR F2,A,B,C,D,E,30 + RR F2,D,E,A,B,C,32 + RR F2,B,C,D,E,A,34 + RR F2,E,A,B,C,D,36 + RR F2,C,D,E,A,B,38 + + RR F3,A,B,C,D,E,40 + RR F3,D,E,A,B,C,42 + RR F3,B,C,D,E,A,44 + RR F3,E,A,B,C,D,46 + RR F3,C,D,E,A,B,48 + + RR F3,A,B,C,D,E,50 + RR F3,D,E,A,B,C,52 + RR F3,B,C,D,E,A,54 + RR F3,E,A,B,C,D,56 + RR F3,C,D,E,A,B,58 + + add $64, BUFFER_PTR # move to the next 64-byte block + cmp BUFFER_END, BUFFER_PTR # if the current is the last one use + cmovae K_BASE, BUFFER_PTR # dummy source to avoid buffer overrun + + RR F4,A,B,C,D,E,60 + RR F4,D,E,A,B,C,62 + RR F4,B,C,D,E,A,64 + RR F4,E,A,B,C,D,66 + RR F4,C,D,E,A,B,68 + + RR F4,A,B,C,D,E,70 + RR F4,D,E,A,B,C,72 + RR F4,B,C,D,E,A,74 + RR F4,E,A,B,C,D,76 + RR F4,C,D,E,A,B,78 + + UPDATE_HASH (HASH_PTR), A + UPDATE_HASH 4(HASH_PTR), B + UPDATE_HASH 8(HASH_PTR), C + UPDATE_HASH 12(HASH_PTR), D + UPDATE_HASH 16(HASH_PTR), E + + RESTORE_RENAMED_REGS + cmp K_BASE, BUFFER_PTR # K_BASE means, we reached the end + jne 1b +.endm + +.macro INIT_REGALLOC + .set A, REG_A + .set B, REG_B + .set C, REG_C + .set D, REG_D + .set E, REG_E + .set T1, REG_T1 + .set T2, REG_T2 +.endm + +.macro RESTORE_RENAMED_REGS + # order is important (REG_C is where it should be) + mov B, REG_B + mov D, REG_D + mov A, REG_A + mov E, REG_E +.endm + +.macro SWAP_REG_NAMES a, b + .set _T, \a + .set \a, \b + .set \b, _T +.endm + +.macro F1 b, c, d + mov \c, T1 + SWAP_REG_NAMES \c, T1 + xor \d, T1 + and \b, T1 + xor \d, T1 +.endm + +.macro F2 b, c, d + mov \d, T1 + SWAP_REG_NAMES \d, T1 + xor \c, T1 + xor \b, T1 +.endm + +.macro F3 b, c ,d + mov \c, T1 + SWAP_REG_NAMES \c, T1 + mov \b, T2 + or \b, T1 + and \c, T2 + and \d, T1 + or T2, T1 +.endm + +.macro F4 b, c, d + F2 \b, \c, \d +.endm + +.macro UPDATE_HASH hash, val + add \hash, \val + mov \val, \hash +.endm + +/* + * RR does two rounds of SHA-1 back to back with W[] pre-calc + * t1 = F(b, c, d); e += w(i) + * e += t1; b <<= 30; d += w(i+1); + * t1 = F(a, b, c); + * d += t1; a <<= 5; + * e += a; + * t1 = e; a >>= 7; + * t1 <<= 5; + * d += t1; + */ +.macro RR F, a, b, c, d, e, round + add WK(\round), \e + \F \b, \c, \d # t1 = F(b, c, d); + W_PRECALC (\round + W_PRECALC_AHEAD) + rol $30, \b + add T1, \e + add WK(\round + 1), \d + + \F \a, \b, \c + W_PRECALC (\round + W_PRECALC_AHEAD + 1) + rol $5, \a + add \a, \e + add T1, \d + ror $7, \a # (a <<r 5) >>r 7) => a <<r 30) + + mov \e, T1 + SWAP_REG_NAMES \e, T1 + + rol $5, T1 + add T1, \d + + # write: \a, \b + # rotate: \a<=\d, \b<=\e, \c<=\a, \d<=\b, \e<=\c +.endm + +.macro W_PRECALC r + .set i, \r + + .if (i < 20) + .set K_XMM, 0 + .elseif (i < 40) + .set K_XMM, 16 + .elseif (i < 60) + .set K_XMM, 32 + .elseif (i < 80) + .set K_XMM, 48 + .endif + + .if ((i < 16) || ((i >= 80) && (i < (80 + W_PRECALC_AHEAD)))) + .set i, ((\r) % 80) # pre-compute for the next iteration + .if (i == 0) + W_PRECALC_RESET + .endif + W_PRECALC_00_15 + .elseif (i<32) + W_PRECALC_16_31 + .elseif (i < 80) // rounds 32-79 + W_PRECALC_32_79 + .endif +.endm + +.macro W_PRECALC_RESET + .set W, W0 + .set W_minus_04, W4 + .set W_minus_08, W8 + .set W_minus_12, W12 + .set W_minus_16, W16 + .set W_minus_20, W20 + .set W_minus_24, W24 + .set W_minus_28, W28 + .set W_minus_32, W +.endm + +.macro W_PRECALC_ROTATE + .set W_minus_32, W_minus_28 + .set W_minus_28, W_minus_24 + .set W_minus_24, W_minus_20 + .set W_minus_20, W_minus_16 + .set W_minus_16, W_minus_12 + .set W_minus_12, W_minus_08 + .set W_minus_08, W_minus_04 + .set W_minus_04, W + .set W, W_minus_32 +.endm + +.macro W_PRECALC_SSSE3 + +.macro W_PRECALC_00_15 + W_PRECALC_00_15_SSSE3 +.endm +.macro W_PRECALC_16_31 + W_PRECALC_16_31_SSSE3 +.endm +.macro W_PRECALC_32_79 + W_PRECALC_32_79_SSSE3 +.endm + +/* message scheduling pre-compute for rounds 0-15 */ +.macro W_PRECALC_00_15_SSSE3 + .if ((i & 3) == 0) + movdqu (i*4)(BUFFER_PTR), W_TMP1 + .elseif ((i & 3) == 1) + pshufb XMM_SHUFB_BSWAP, W_TMP1 + movdqa W_TMP1, W + .elseif ((i & 3) == 2) + paddd (K_BASE), W_TMP1 + .elseif ((i & 3) == 3) + movdqa W_TMP1, WK(i&~3) + W_PRECALC_ROTATE + .endif +.endm + +/* message scheduling pre-compute for rounds 16-31 + * + * - calculating last 32 w[i] values in 8 XMM registers + * - pre-calculate K+w[i] values and store to mem, for later load by ALU add + * instruction + * + * some "heavy-lifting" vectorization for rounds 16-31 due to w[i]->w[i-3] + * dependency, but improves for 32-79 + */ +.macro W_PRECALC_16_31_SSSE3 + # blended scheduling of vector and scalar instruction streams, one 4-wide + # vector iteration / 4 scalar rounds + .if ((i & 3) == 0) + movdqa W_minus_12, W + palignr $8, W_minus_16, W # w[i-14] + movdqa W_minus_04, W_TMP1 + psrldq $4, W_TMP1 # w[i-3] + pxor W_minus_08, W + .elseif ((i & 3) == 1) + pxor W_minus_16, W_TMP1 + pxor W_TMP1, W + movdqa W, W_TMP2 + movdqa W, W_TMP1 + pslldq $12, W_TMP2 + .elseif ((i & 3) == 2) + psrld $31, W + pslld $1, W_TMP1 + por W, W_TMP1 + movdqa W_TMP2, W + psrld $30, W_TMP2 + pslld $2, W + .elseif ((i & 3) == 3) + pxor W, W_TMP1 + pxor W_TMP2, W_TMP1 + movdqa W_TMP1, W + paddd K_XMM(K_BASE), W_TMP1 + movdqa W_TMP1, WK(i&~3) + W_PRECALC_ROTATE + .endif +.endm + +/* message scheduling pre-compute for rounds 32-79 + * + * in SHA-1 specification: w[i] = (w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16]) rol 1 + * instead we do equal: w[i] = (w[i-6] ^ w[i-16] ^ w[i-28] ^ w[i-32]) rol 2 + * allows more efficient vectorization since w[i]=>w[i-3] dependency is broken + */ +.macro W_PRECALC_32_79_SSSE3 + .if ((i & 3) == 0) + movdqa W_minus_04, W_TMP1 + pxor W_minus_28, W # W is W_minus_32 before xor + palignr $8, W_minus_08, W_TMP1 + .elseif ((i & 3) == 1) + pxor W_minus_16, W + pxor W_TMP1, W + movdqa W, W_TMP1 + .elseif ((i & 3) == 2) + psrld $30, W + pslld $2, W_TMP1 + por W, W_TMP1 + .elseif ((i & 3) == 3) + movdqa W_TMP1, W + paddd K_XMM(K_BASE), W_TMP1 + movdqa W_TMP1, WK(i&~3) + W_PRECALC_ROTATE + .endif +.endm + +.endm // W_PRECALC_SSSE3 + + +#define K1 0x5a827999 +#define K2 0x6ed9eba1 +#define K3 0x8f1bbcdc +#define K4 0xca62c1d6 + +.section .rodata +.align 16 + +K_XMM_AR: + .long K1, K1, K1, K1 + .long K2, K2, K2, K2 + .long K3, K3, K3, K3 + .long K4, K4, K4, K4 + +BSWAP_SHUFB_CTL: + .long 0x00010203 + .long 0x04050607 + .long 0x08090a0b + .long 0x0c0d0e0f + + +.section .text + +W_PRECALC_SSSE3 +.macro xmm_mov a, b + movdqu \a,\b +.endm + +/* SSSE3 optimized implementation: + * extern "C" void sha1_transform_ssse3(u32 *digest, const char *data, u32 *ws, + * unsigned int rounds); + */ +SHA1_VECTOR_ASM sha1_transform_ssse3 + +#ifdef CONFIG_AS_AVX + +.macro W_PRECALC_AVX + +.purgem W_PRECALC_00_15 +.macro W_PRECALC_00_15 + W_PRECALC_00_15_AVX +.endm +.purgem W_PRECALC_16_31 +.macro W_PRECALC_16_31 + W_PRECALC_16_31_AVX +.endm +.purgem W_PRECALC_32_79 +.macro W_PRECALC_32_79 + W_PRECALC_32_79_AVX +.endm + +.macro W_PRECALC_00_15_AVX + .if ((i & 3) == 0) + vmovdqu (i*4)(BUFFER_PTR), W_TMP1 + .elseif ((i & 3) == 1) + vpshufb XMM_SHUFB_BSWAP, W_TMP1, W + .elseif ((i & 3) == 2) + vpaddd (K_BASE), W, W_TMP1 + .elseif ((i & 3) == 3) + vmovdqa W_TMP1, WK(i&~3) + W_PRECALC_ROTATE + .endif +.endm + +.macro W_PRECALC_16_31_AVX + .if ((i & 3) == 0) + vpalignr $8, W_minus_16, W_minus_12, W # w[i-14] + vpsrldq $4, W_minus_04, W_TMP1 # w[i-3] + vpxor W_minus_08, W, W + vpxor W_minus_16, W_TMP1, W_TMP1 + .elseif ((i & 3) == 1) + vpxor W_TMP1, W, W + vpslldq $12, W, W_TMP2 + vpslld $1, W, W_TMP1 + .elseif ((i & 3) == 2) + vpsrld $31, W, W + vpor W, W_TMP1, W_TMP1 + vpslld $2, W_TMP2, W + vpsrld $30, W_TMP2, W_TMP2 + .elseif ((i & 3) == 3) + vpxor W, W_TMP1, W_TMP1 + vpxor W_TMP2, W_TMP1, W + vpaddd K_XMM(K_BASE), W, W_TMP1 + vmovdqu W_TMP1, WK(i&~3) + W_PRECALC_ROTATE + .endif +.endm + +.macro W_PRECALC_32_79_AVX + .if ((i & 3) == 0) + vpalignr $8, W_minus_08, W_minus_04, W_TMP1 + vpxor W_minus_28, W, W # W is W_minus_32 before xor + .elseif ((i & 3) == 1) + vpxor W_minus_16, W_TMP1, W_TMP1 + vpxor W_TMP1, W, W + .elseif ((i & 3) == 2) + vpslld $2, W, W_TMP1 + vpsrld $30, W, W + vpor W, W_TMP1, W + .elseif ((i & 3) == 3) + vpaddd K_XMM(K_BASE), W, W_TMP1 + vmovdqu W_TMP1, WK(i&~3) + W_PRECALC_ROTATE + .endif +.endm + +.endm // W_PRECALC_AVX + +W_PRECALC_AVX +.purgem xmm_mov +.macro xmm_mov a, b + vmovdqu \a,\b +.endm + + +/* AVX optimized implementation: + * extern "C" void sha1_transform_avx(u32 *digest, const char *data, u32 *ws, + * unsigned int rounds); + */ +SHA1_VECTOR_ASM sha1_transform_avx + +#endif diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c new file mode 100644 index 000000000..7391c7de7 --- /dev/null +++ b/arch/x86/crypto/sha1_ssse3_glue.c @@ -0,0 +1,378 @@ +/* + * Cryptographic API. + * + * Glue code for the SHA1 Secure Hash Algorithm assembler implementation using + * Supplemental SSE3 instructions. + * + * This file is based on sha1_generic.c + * + * Copyright (c) Alan Smithee. + * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk> + * Copyright (c) Jean-Francois Dive <jef@linuxbe.org> + * Copyright (c) Mathias Krause <minipli@googlemail.com> + * Copyright (c) Chandramouli Narayanan <mouli@linux.intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/cryptohash.h> +#include <linux/types.h> +#include <crypto/sha.h> +#include <crypto/sha1_base.h> +#include <asm/fpu/api.h> + +typedef void (sha1_transform_fn)(u32 *digest, const char *data, + unsigned int rounds); + +static int sha1_update(struct shash_desc *desc, const u8 *data, + unsigned int len, sha1_transform_fn *sha1_xform) +{ + struct sha1_state *sctx = shash_desc_ctx(desc); + + if (!irq_fpu_usable() || + (sctx->count % SHA1_BLOCK_SIZE) + len < SHA1_BLOCK_SIZE) + return crypto_sha1_update(desc, data, len); + + /* make sure casting to sha1_block_fn() is safe */ + BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0); + + kernel_fpu_begin(); + sha1_base_do_update(desc, data, len, + (sha1_block_fn *)sha1_xform); + kernel_fpu_end(); + + return 0; +} + +static int sha1_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out, sha1_transform_fn *sha1_xform) +{ + if (!irq_fpu_usable()) + return crypto_sha1_finup(desc, data, len, out); + + kernel_fpu_begin(); + if (len) + sha1_base_do_update(desc, data, len, + (sha1_block_fn *)sha1_xform); + sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_xform); + kernel_fpu_end(); + + return sha1_base_finish(desc, out); +} + +asmlinkage void sha1_transform_ssse3(u32 *digest, const char *data, + unsigned int rounds); + +static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha1_update(desc, data, len, + (sha1_transform_fn *) sha1_transform_ssse3); +} + +static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha1_finup(desc, data, len, out, + (sha1_transform_fn *) sha1_transform_ssse3); +} + +/* Add padding and return the message digest. */ +static int sha1_ssse3_final(struct shash_desc *desc, u8 *out) +{ + return sha1_ssse3_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha1_ssse3_alg = { + .digestsize = SHA1_DIGEST_SIZE, + .init = sha1_base_init, + .update = sha1_ssse3_update, + .final = sha1_ssse3_final, + .finup = sha1_ssse3_finup, + .descsize = sizeof(struct sha1_state), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1-ssse3", + .cra_priority = 150, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static int register_sha1_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + return crypto_register_shash(&sha1_ssse3_alg); + return 0; +} + +static void unregister_sha1_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + crypto_unregister_shash(&sha1_ssse3_alg); +} + +#ifdef CONFIG_AS_AVX +asmlinkage void sha1_transform_avx(u32 *digest, const char *data, + unsigned int rounds); + +static int sha1_avx_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha1_update(desc, data, len, + (sha1_transform_fn *) sha1_transform_avx); +} + +static int sha1_avx_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha1_finup(desc, data, len, out, + (sha1_transform_fn *) sha1_transform_avx); +} + +static int sha1_avx_final(struct shash_desc *desc, u8 *out) +{ + return sha1_avx_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha1_avx_alg = { + .digestsize = SHA1_DIGEST_SIZE, + .init = sha1_base_init, + .update = sha1_avx_update, + .final = sha1_avx_final, + .finup = sha1_avx_finup, + .descsize = sizeof(struct sha1_state), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1-avx", + .cra_priority = 160, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static bool avx_usable(void) +{ + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) { + if (boot_cpu_has(X86_FEATURE_AVX)) + pr_info("AVX detected but unusable.\n"); + return false; + } + + return true; +} + +static int register_sha1_avx(void) +{ + if (avx_usable()) + return crypto_register_shash(&sha1_avx_alg); + return 0; +} + +static void unregister_sha1_avx(void) +{ + if (avx_usable()) + crypto_unregister_shash(&sha1_avx_alg); +} + +#else /* CONFIG_AS_AVX */ +static inline int register_sha1_avx(void) { return 0; } +static inline void unregister_sha1_avx(void) { } +#endif /* CONFIG_AS_AVX */ + + +#if defined(CONFIG_AS_AVX2) && (CONFIG_AS_AVX) +#define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */ + +asmlinkage void sha1_transform_avx2(u32 *digest, const char *data, + unsigned int rounds); + +static bool avx2_usable(void) +{ + if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) + && boot_cpu_has(X86_FEATURE_BMI1) + && boot_cpu_has(X86_FEATURE_BMI2)) + return true; + + return false; +} + +static void sha1_apply_transform_avx2(u32 *digest, const char *data, + unsigned int rounds) +{ + /* Select the optimal transform based on data block size */ + if (rounds >= SHA1_AVX2_BLOCK_OPTSIZE) + sha1_transform_avx2(digest, data, rounds); + else + sha1_transform_avx(digest, data, rounds); +} + +static int sha1_avx2_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha1_update(desc, data, len, + (sha1_transform_fn *) sha1_apply_transform_avx2); +} + +static int sha1_avx2_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha1_finup(desc, data, len, out, + (sha1_transform_fn *) sha1_apply_transform_avx2); +} + +static int sha1_avx2_final(struct shash_desc *desc, u8 *out) +{ + return sha1_avx2_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha1_avx2_alg = { + .digestsize = SHA1_DIGEST_SIZE, + .init = sha1_base_init, + .update = sha1_avx2_update, + .final = sha1_avx2_final, + .finup = sha1_avx2_finup, + .descsize = sizeof(struct sha1_state), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1-avx2", + .cra_priority = 170, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static int register_sha1_avx2(void) +{ + if (avx2_usable()) + return crypto_register_shash(&sha1_avx2_alg); + return 0; +} + +static void unregister_sha1_avx2(void) +{ + if (avx2_usable()) + crypto_unregister_shash(&sha1_avx2_alg); +} + +#else +static inline int register_sha1_avx2(void) { return 0; } +static inline void unregister_sha1_avx2(void) { } +#endif + +#ifdef CONFIG_AS_SHA1_NI +asmlinkage void sha1_ni_transform(u32 *digest, const char *data, + unsigned int rounds); + +static int sha1_ni_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha1_update(desc, data, len, + (sha1_transform_fn *) sha1_ni_transform); +} + +static int sha1_ni_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha1_finup(desc, data, len, out, + (sha1_transform_fn *) sha1_ni_transform); +} + +static int sha1_ni_final(struct shash_desc *desc, u8 *out) +{ + return sha1_ni_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha1_ni_alg = { + .digestsize = SHA1_DIGEST_SIZE, + .init = sha1_base_init, + .update = sha1_ni_update, + .final = sha1_ni_final, + .finup = sha1_ni_finup, + .descsize = sizeof(struct sha1_state), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1-ni", + .cra_priority = 250, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static int register_sha1_ni(void) +{ + if (boot_cpu_has(X86_FEATURE_SHA_NI)) + return crypto_register_shash(&sha1_ni_alg); + return 0; +} + +static void unregister_sha1_ni(void) +{ + if (boot_cpu_has(X86_FEATURE_SHA_NI)) + crypto_unregister_shash(&sha1_ni_alg); +} + +#else +static inline int register_sha1_ni(void) { return 0; } +static inline void unregister_sha1_ni(void) { } +#endif + +static int __init sha1_ssse3_mod_init(void) +{ + if (register_sha1_ssse3()) + goto fail; + + if (register_sha1_avx()) { + unregister_sha1_ssse3(); + goto fail; + } + + if (register_sha1_avx2()) { + unregister_sha1_avx(); + unregister_sha1_ssse3(); + goto fail; + } + + if (register_sha1_ni()) { + unregister_sha1_avx2(); + unregister_sha1_avx(); + unregister_sha1_ssse3(); + goto fail; + } + + return 0; +fail: + return -ENODEV; +} + +static void __exit sha1_ssse3_mod_fini(void) +{ + unregister_sha1_ni(); + unregister_sha1_avx2(); + unregister_sha1_avx(); + unregister_sha1_ssse3(); +} + +module_init(sha1_ssse3_mod_init); +module_exit(sha1_ssse3_mod_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, Supplemental SSE3 accelerated"); + +MODULE_ALIAS_CRYPTO("sha1"); +MODULE_ALIAS_CRYPTO("sha1-ssse3"); +MODULE_ALIAS_CRYPTO("sha1-avx"); +MODULE_ALIAS_CRYPTO("sha1-avx2"); +#ifdef CONFIG_AS_SHA1_NI +MODULE_ALIAS_CRYPTO("sha1-ni"); +#endif diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S new file mode 100644 index 000000000..001bbcf93 --- /dev/null +++ b/arch/x86/crypto/sha256-avx-asm.S @@ -0,0 +1,502 @@ +######################################################################## +# Implement fast SHA-256 with AVX1 instructions. (x86_64) +# +# Copyright (C) 2013 Intel Corporation. +# +# Authors: +# James Guilford <james.guilford@intel.com> +# Kirk Yap <kirk.s.yap@intel.com> +# Tim Chen <tim.c.chen@linux.intel.com> +# +# This software is available to you under a choice of one of two +# licenses. You may choose to be licensed under the terms of the GNU +# General Public License (GPL) Version 2, available from the file +# COPYING in the main directory of this source tree, or the +# OpenIB.org BSD license below: +# +# Redistribution and use in source and binary forms, with or +# without modification, are permitted provided that the following +# conditions are met: +# +# - Redistributions of source code must retain the above +# copyright notice, this list of conditions and the following +# disclaimer. +# +# - Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials +# provided with the distribution. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +######################################################################## +# +# This code is described in an Intel White-Paper: +# "Fast SHA-256 Implementations on Intel Architecture Processors" +# +# To find it, surf to http://www.intel.com/p/en_US/embedded +# and search for that title. +# +######################################################################## +# This code schedules 1 block at a time, with 4 lanes per block +######################################################################## + +#ifdef CONFIG_AS_AVX +#include <linux/linkage.h> + +## assume buffers not aligned +#define VMOVDQ vmovdqu + +################################ Define Macros + +# addm [mem], reg +# Add reg to mem using reg-mem add and store +.macro addm p1 p2 + add \p1, \p2 + mov \p2, \p1 +.endm + + +.macro MY_ROR p1 p2 + shld $(32-(\p1)), \p2, \p2 +.endm + +################################ + +# COPY_XMM_AND_BSWAP xmm, [mem], byte_flip_mask +# Load xmm with mem and byte swap each dword +.macro COPY_XMM_AND_BSWAP p1 p2 p3 + VMOVDQ \p2, \p1 + vpshufb \p3, \p1, \p1 +.endm + +################################ + +X0 = %xmm4 +X1 = %xmm5 +X2 = %xmm6 +X3 = %xmm7 + +XTMP0 = %xmm0 +XTMP1 = %xmm1 +XTMP2 = %xmm2 +XTMP3 = %xmm3 +XTMP4 = %xmm8 +XFER = %xmm9 +XTMP5 = %xmm11 + +SHUF_00BA = %xmm10 # shuffle xBxA -> 00BA +SHUF_DC00 = %xmm12 # shuffle xDxC -> DC00 +BYTE_FLIP_MASK = %xmm13 + +NUM_BLKS = %rdx # 3rd arg +INP = %rsi # 2nd arg +CTX = %rdi # 1st arg + +SRND = %rsi # clobbers INP +c = %ecx +d = %r8d +e = %edx +TBL = %r12 +a = %eax +b = %ebx + +f = %r9d +g = %r10d +h = %r11d + +y0 = %r13d +y1 = %r14d +y2 = %r15d + + +_INP_END_SIZE = 8 +_INP_SIZE = 8 +_XFER_SIZE = 16 +_XMM_SAVE_SIZE = 0 + +_INP_END = 0 +_INP = _INP_END + _INP_END_SIZE +_XFER = _INP + _INP_SIZE +_XMM_SAVE = _XFER + _XFER_SIZE +STACK_SIZE = _XMM_SAVE + _XMM_SAVE_SIZE + +# rotate_Xs +# Rotate values of symbols X0...X3 +.macro rotate_Xs +X_ = X0 +X0 = X1 +X1 = X2 +X2 = X3 +X3 = X_ +.endm + +# ROTATE_ARGS +# Rotate values of symbols a...h +.macro ROTATE_ARGS +TMP_ = h +h = g +g = f +f = e +e = d +d = c +c = b +b = a +a = TMP_ +.endm + +.macro FOUR_ROUNDS_AND_SCHED + ## compute s0 four at a time and s1 two at a time + ## compute W[-16] + W[-7] 4 at a time + + mov e, y0 # y0 = e + MY_ROR (25-11), y0 # y0 = e >> (25-11) + mov a, y1 # y1 = a + vpalignr $4, X2, X3, XTMP0 # XTMP0 = W[-7] + MY_ROR (22-13), y1 # y1 = a >> (22-13) + xor e, y0 # y0 = e ^ (e >> (25-11)) + mov f, y2 # y2 = f + MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + xor a, y1 # y1 = a ^ (a >> (22-13) + xor g, y2 # y2 = f^g + vpaddd X0, XTMP0, XTMP0 # XTMP0 = W[-7] + W[-16] + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + and e, y2 # y2 = (f^g)&e + MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + ## compute s0 + vpalignr $4, X0, X1, XTMP1 # XTMP1 = W[-15] + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + xor g, y2 # y2 = CH = ((f^g)&e)^g + MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + add y0, y2 # y2 = S1 + CH + add _XFER(%rsp), y2 # y2 = k + w + S1 + CH + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + vpsrld $7, XTMP1, XTMP2 + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + vpslld $(32-7), XTMP1, XTMP3 + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + vpor XTMP2, XTMP3, XTMP3 # XTMP1 = W[-15] MY_ROR 7 + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + ROTATE_ARGS + mov e, y0 # y0 = e + mov a, y1 # y1 = a + MY_ROR (25-11), y0 # y0 = e >> (25-11) + xor e, y0 # y0 = e ^ (e >> (25-11)) + mov f, y2 # y2 = f + MY_ROR (22-13), y1 # y1 = a >> (22-13) + vpsrld $18, XTMP1, XTMP2 # + xor a, y1 # y1 = a ^ (a >> (22-13) + MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + xor g, y2 # y2 = f^g + vpsrld $3, XTMP1, XTMP4 # XTMP4 = W[-15] >> 3 + MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + and e, y2 # y2 = (f^g)&e + MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + vpslld $(32-18), XTMP1, XTMP1 + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + xor g, y2 # y2 = CH = ((f^g)&e)^g + vpxor XTMP1, XTMP3, XTMP3 # + add y0, y2 # y2 = S1 + CH + add (1*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH + MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + vpxor XTMP2, XTMP3, XTMP3 # XTMP1 = W[-15] MY_ROR 7 ^ W[-15] MY_ROR + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + vpxor XTMP4, XTMP3, XTMP1 # XTMP1 = s0 + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + ## compute low s1 + vpshufd $0b11111010, X3, XTMP2 # XTMP2 = W[-2] {BBAA} + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + vpaddd XTMP1, XTMP0, XTMP0 # XTMP0 = W[-16] + W[-7] + s0 + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + ROTATE_ARGS + mov e, y0 # y0 = e + mov a, y1 # y1 = a + MY_ROR (25-11), y0 # y0 = e >> (25-11) + xor e, y0 # y0 = e ^ (e >> (25-11)) + MY_ROR (22-13), y1 # y1 = a >> (22-13) + mov f, y2 # y2 = f + xor a, y1 # y1 = a ^ (a >> (22-13) + MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + vpsrld $10, XTMP2, XTMP4 # XTMP4 = W[-2] >> 10 {BBAA} + xor g, y2 # y2 = f^g + vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] MY_ROR 19 {xBxA} + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + and e, y2 # y2 = (f^g)&e + vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] MY_ROR 17 {xBxA} + MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + xor g, y2 # y2 = CH = ((f^g)&e)^g + MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + vpxor XTMP3, XTMP2, XTMP2 # + add y0, y2 # y2 = S1 + CH + MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + add (2*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH + vpxor XTMP2, XTMP4, XTMP4 # XTMP4 = s1 {xBxA} + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + vpshufb SHUF_00BA, XTMP4, XTMP4 # XTMP4 = s1 {00BA} + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + vpaddd XTMP4, XTMP0, XTMP0 # XTMP0 = {..., ..., W[1], W[0]} + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + ## compute high s1 + vpshufd $0b01010000, XTMP0, XTMP2 # XTMP2 = W[-2] {DDCC} + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + ROTATE_ARGS + mov e, y0 # y0 = e + MY_ROR (25-11), y0 # y0 = e >> (25-11) + mov a, y1 # y1 = a + MY_ROR (22-13), y1 # y1 = a >> (22-13) + xor e, y0 # y0 = e ^ (e >> (25-11)) + mov f, y2 # y2 = f + MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + vpsrld $10, XTMP2, XTMP5 # XTMP5 = W[-2] >> 10 {DDCC} + xor a, y1 # y1 = a ^ (a >> (22-13) + xor g, y2 # y2 = f^g + vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] MY_ROR 19 {xDxC} + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + and e, y2 # y2 = (f^g)&e + MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] MY_ROR 17 {xDxC} + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + xor g, y2 # y2 = CH = ((f^g)&e)^g + vpxor XTMP3, XTMP2, XTMP2 + MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + add y0, y2 # y2 = S1 + CH + add (3*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH + vpxor XTMP2, XTMP5, XTMP5 # XTMP5 = s1 {xDxC} + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + vpshufb SHUF_DC00, XTMP5, XTMP5 # XTMP5 = s1 {DC00} + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + vpaddd XTMP0, XTMP5, X0 # X0 = {W[3], W[2], W[1], W[0]} + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + ROTATE_ARGS + rotate_Xs +.endm + +## input is [rsp + _XFER + %1 * 4] +.macro DO_ROUND round + mov e, y0 # y0 = e + MY_ROR (25-11), y0 # y0 = e >> (25-11) + mov a, y1 # y1 = a + xor e, y0 # y0 = e ^ (e >> (25-11)) + MY_ROR (22-13), y1 # y1 = a >> (22-13) + mov f, y2 # y2 = f + xor a, y1 # y1 = a ^ (a >> (22-13) + MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + xor g, y2 # y2 = f^g + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + and e, y2 # y2 = (f^g)&e + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + xor g, y2 # y2 = CH = ((f^g)&e)^g + add y0, y2 # y2 = S1 + CH + MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + offset = \round * 4 + _XFER # + add offset(%rsp), y2 # y2 = k + w + S1 + CH + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + ROTATE_ARGS +.endm + +######################################################################## +## void sha256_transform_avx(void *input_data, UINT32 digest[8], UINT64 num_blks) +## arg 1 : pointer to digest +## arg 2 : pointer to input data +## arg 3 : Num blocks +######################################################################## +.text +ENTRY(sha256_transform_avx) +.align 32 + pushq %rbx + pushq %r12 + pushq %r13 + pushq %r14 + pushq %r15 + pushq %rbp + movq %rsp, %rbp + + subq $STACK_SIZE, %rsp # allocate stack space + and $~15, %rsp # align stack pointer + + shl $6, NUM_BLKS # convert to bytes + jz done_hash + add INP, NUM_BLKS # pointer to end of data + mov NUM_BLKS, _INP_END(%rsp) + + ## load initial digest + mov 4*0(CTX), a + mov 4*1(CTX), b + mov 4*2(CTX), c + mov 4*3(CTX), d + mov 4*4(CTX), e + mov 4*5(CTX), f + mov 4*6(CTX), g + mov 4*7(CTX), h + + vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK + vmovdqa _SHUF_00BA(%rip), SHUF_00BA + vmovdqa _SHUF_DC00(%rip), SHUF_DC00 +loop0: + lea K256(%rip), TBL + + ## byte swap first 16 dwords + COPY_XMM_AND_BSWAP X0, 0*16(INP), BYTE_FLIP_MASK + COPY_XMM_AND_BSWAP X1, 1*16(INP), BYTE_FLIP_MASK + COPY_XMM_AND_BSWAP X2, 2*16(INP), BYTE_FLIP_MASK + COPY_XMM_AND_BSWAP X3, 3*16(INP), BYTE_FLIP_MASK + + mov INP, _INP(%rsp) + + ## schedule 48 input dwords, by doing 3 rounds of 16 each + mov $3, SRND +.align 16 +loop1: + vpaddd (TBL), X0, XFER + vmovdqa XFER, _XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + vpaddd 1*16(TBL), X0, XFER + vmovdqa XFER, _XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + vpaddd 2*16(TBL), X0, XFER + vmovdqa XFER, _XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + vpaddd 3*16(TBL), X0, XFER + vmovdqa XFER, _XFER(%rsp) + add $4*16, TBL + FOUR_ROUNDS_AND_SCHED + + sub $1, SRND + jne loop1 + + mov $2, SRND +loop2: + vpaddd (TBL), X0, XFER + vmovdqa XFER, _XFER(%rsp) + DO_ROUND 0 + DO_ROUND 1 + DO_ROUND 2 + DO_ROUND 3 + + vpaddd 1*16(TBL), X1, XFER + vmovdqa XFER, _XFER(%rsp) + add $2*16, TBL + DO_ROUND 0 + DO_ROUND 1 + DO_ROUND 2 + DO_ROUND 3 + + vmovdqa X2, X0 + vmovdqa X3, X1 + + sub $1, SRND + jne loop2 + + addm (4*0)(CTX),a + addm (4*1)(CTX),b + addm (4*2)(CTX),c + addm (4*3)(CTX),d + addm (4*4)(CTX),e + addm (4*5)(CTX),f + addm (4*6)(CTX),g + addm (4*7)(CTX),h + + mov _INP(%rsp), INP + add $64, INP + cmp _INP_END(%rsp), INP + jne loop0 + +done_hash: + + mov %rbp, %rsp + popq %rbp + popq %r15 + popq %r14 + popq %r13 + popq %r12 + popq %rbx + ret +ENDPROC(sha256_transform_avx) + +.section .rodata.cst256.K256, "aM", @progbits, 256 +.align 64 +K256: + .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 + +.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16 +.align 16 +PSHUFFLE_BYTE_FLIP_MASK: + .octa 0x0c0d0e0f08090a0b0405060700010203 + +.section .rodata.cst16._SHUF_00BA, "aM", @progbits, 16 +.align 16 +# shuffle xBxA -> 00BA +_SHUF_00BA: + .octa 0xFFFFFFFFFFFFFFFF0b0a090803020100 + +.section .rodata.cst16._SHUF_DC00, "aM", @progbits, 16 +.align 16 +# shuffle xDxC -> DC00 +_SHUF_DC00: + .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF + +#endif diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S new file mode 100644 index 000000000..1420db15d --- /dev/null +++ b/arch/x86/crypto/sha256-avx2-asm.S @@ -0,0 +1,771 @@ +######################################################################## +# Implement fast SHA-256 with AVX2 instructions. (x86_64) +# +# Copyright (C) 2013 Intel Corporation. +# +# Authors: +# James Guilford <james.guilford@intel.com> +# Kirk Yap <kirk.s.yap@intel.com> +# Tim Chen <tim.c.chen@linux.intel.com> +# +# This software is available to you under a choice of one of two +# licenses. You may choose to be licensed under the terms of the GNU +# General Public License (GPL) Version 2, available from the file +# COPYING in the main directory of this source tree, or the +# OpenIB.org BSD license below: +# +# Redistribution and use in source and binary forms, with or +# without modification, are permitted provided that the following +# conditions are met: +# +# - Redistributions of source code must retain the above +# copyright notice, this list of conditions and the following +# disclaimer. +# +# - Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials +# provided with the distribution. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# +######################################################################## +# +# This code is described in an Intel White-Paper: +# "Fast SHA-256 Implementations on Intel Architecture Processors" +# +# To find it, surf to http://www.intel.com/p/en_US/embedded +# and search for that title. +# +######################################################################## +# This code schedules 2 blocks at a time, with 4 lanes per block +######################################################################## + +#ifdef CONFIG_AS_AVX2 +#include <linux/linkage.h> + +## assume buffers not aligned +#define VMOVDQ vmovdqu + +################################ Define Macros + +# addm [mem], reg +# Add reg to mem using reg-mem add and store +.macro addm p1 p2 + add \p1, \p2 + mov \p2, \p1 +.endm + +################################ + +X0 = %ymm4 +X1 = %ymm5 +X2 = %ymm6 +X3 = %ymm7 + +# XMM versions of above +XWORD0 = %xmm4 +XWORD1 = %xmm5 +XWORD2 = %xmm6 +XWORD3 = %xmm7 + +XTMP0 = %ymm0 +XTMP1 = %ymm1 +XTMP2 = %ymm2 +XTMP3 = %ymm3 +XTMP4 = %ymm8 +XFER = %ymm9 +XTMP5 = %ymm11 + +SHUF_00BA = %ymm10 # shuffle xBxA -> 00BA +SHUF_DC00 = %ymm12 # shuffle xDxC -> DC00 +BYTE_FLIP_MASK = %ymm13 + +X_BYTE_FLIP_MASK = %xmm13 # XMM version of BYTE_FLIP_MASK + +NUM_BLKS = %rdx # 3rd arg +INP = %rsi # 2nd arg +CTX = %rdi # 1st arg +c = %ecx +d = %r8d +e = %edx # clobbers NUM_BLKS +y3 = %esi # clobbers INP + +SRND = CTX # SRND is same register as CTX + +a = %eax +b = %ebx +f = %r9d +g = %r10d +h = %r11d +old_h = %r11d + +T1 = %r12d +y0 = %r13d +y1 = %r14d +y2 = %r15d + + +_XFER_SIZE = 2*64*4 # 2 blocks, 64 rounds, 4 bytes/round +_XMM_SAVE_SIZE = 0 +_INP_END_SIZE = 8 +_INP_SIZE = 8 +_CTX_SIZE = 8 +_RSP_SIZE = 8 + +_XFER = 0 +_XMM_SAVE = _XFER + _XFER_SIZE +_INP_END = _XMM_SAVE + _XMM_SAVE_SIZE +_INP = _INP_END + _INP_END_SIZE +_CTX = _INP + _INP_SIZE +_RSP = _CTX + _CTX_SIZE +STACK_SIZE = _RSP + _RSP_SIZE + +# rotate_Xs +# Rotate values of symbols X0...X3 +.macro rotate_Xs + X_ = X0 + X0 = X1 + X1 = X2 + X2 = X3 + X3 = X_ +.endm + +# ROTATE_ARGS +# Rotate values of symbols a...h +.macro ROTATE_ARGS + old_h = h + TMP_ = h + h = g + g = f + f = e + e = d + d = c + c = b + b = a + a = TMP_ +.endm + +.macro FOUR_ROUNDS_AND_SCHED disp +################################### RND N + 0 ############################ + + mov a, y3 # y3 = a # MAJA + rorx $25, e, y0 # y0 = e >> 25 # S1A + rorx $11, e, y1 # y1 = e >> 11 # S1B + + addl \disp(%rsp, SRND), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + vpalignr $4, X2, X3, XTMP0 # XTMP0 = W[-7] + mov f, y2 # y2 = f # CH + rorx $13, a, T1 # T1 = a >> 13 # S0B + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1 + xor g, y2 # y2 = f^g # CH + vpaddd X0, XTMP0, XTMP0 # XTMP0 = W[-7] + W[-16]# y1 = (e >> 6)# S1 + rorx $6, e, y1 # y1 = (e >> 6) # S1 + + and e, y2 # y2 = (f^g)&e # CH + xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1 + rorx $22, a, y1 # y1 = a >> 22 # S0A + add h, d # d = k + w + h + d # -- + + and b, y3 # y3 = (a|c)&b # MAJA + vpalignr $4, X0, X1, XTMP1 # XTMP1 = W[-15] + xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0 + rorx $2, a, T1 # T1 = (a >> 2) # S0 + + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + vpsrld $7, XTMP1, XTMP2 + xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0 + mov a, T1 # T1 = a # MAJB + and c, T1 # T1 = a&c # MAJB + + add y0, y2 # y2 = S1 + CH # -- + vpslld $(32-7), XTMP1, XTMP3 + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + vpor XTMP2, XTMP3, XTMP3 # XTMP3 = W[-15] ror 7 + + vpsrld $18, XTMP1, XTMP2 + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + add y3, h # h = t1 + S0 + MAJ # -- + + + ROTATE_ARGS + +################################### RND N + 1 ############################ + + mov a, y3 # y3 = a # MAJA + rorx $25, e, y0 # y0 = e >> 25 # S1A + rorx $11, e, y1 # y1 = e >> 11 # S1B + offset = \disp + 1*4 + addl offset(%rsp, SRND), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + + vpsrld $3, XTMP1, XTMP4 # XTMP4 = W[-15] >> 3 + mov f, y2 # y2 = f # CH + rorx $13, a, T1 # T1 = a >> 13 # S0B + xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1 + xor g, y2 # y2 = f^g # CH + + + rorx $6, e, y1 # y1 = (e >> 6) # S1 + xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1 + rorx $22, a, y1 # y1 = a >> 22 # S0A + and e, y2 # y2 = (f^g)&e # CH + add h, d # d = k + w + h + d # -- + + vpslld $(32-18), XTMP1, XTMP1 + and b, y3 # y3 = (a|c)&b # MAJA + xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0 + + vpxor XTMP1, XTMP3, XTMP3 + rorx $2, a, T1 # T1 = (a >> 2) # S0 + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + + vpxor XTMP2, XTMP3, XTMP3 # XTMP3 = W[-15] ror 7 ^ W[-15] ror 18 + xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0 + mov a, T1 # T1 = a # MAJB + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + vpxor XTMP4, XTMP3, XTMP1 # XTMP1 = s0 + vpshufd $0b11111010, X3, XTMP2 # XTMP2 = W[-2] {BBAA} + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + vpaddd XTMP1, XTMP0, XTMP0 # XTMP0 = W[-16] + W[-7] + s0 + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + add y3, h # h = t1 + S0 + MAJ # -- + + vpsrld $10, XTMP2, XTMP4 # XTMP4 = W[-2] >> 10 {BBAA} + + + ROTATE_ARGS + +################################### RND N + 2 ############################ + + mov a, y3 # y3 = a # MAJA + rorx $25, e, y0 # y0 = e >> 25 # S1A + offset = \disp + 2*4 + addl offset(%rsp, SRND), h # h = k + w + h # -- + + vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] ror 19 {xBxA} + rorx $11, e, y1 # y1 = e >> 11 # S1B + or c, y3 # y3 = a|c # MAJA + mov f, y2 # y2 = f # CH + xor g, y2 # y2 = f^g # CH + + rorx $13, a, T1 # T1 = a >> 13 # S0B + xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1 + vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] ror 17 {xBxA} + and e, y2 # y2 = (f^g)&e # CH + + rorx $6, e, y1 # y1 = (e >> 6) # S1 + vpxor XTMP3, XTMP2, XTMP2 + add h, d # d = k + w + h + d # -- + and b, y3 # y3 = (a|c)&b # MAJA + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1 + rorx $22, a, y1 # y1 = a >> 22 # S0A + vpxor XTMP2, XTMP4, XTMP4 # XTMP4 = s1 {xBxA} + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + + vpshufb SHUF_00BA, XTMP4, XTMP4 # XTMP4 = s1 {00BA} + xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0 + rorx $2, a ,T1 # T1 = (a >> 2) # S0 + vpaddd XTMP4, XTMP0, XTMP0 # XTMP0 = {..., ..., W[1], W[0]} + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0 + mov a, T1 # T1 = a # MAJB + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + vpshufd $0b01010000, XTMP0, XTMP2 # XTMP2 = W[-2] {DDCC} + + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1,h # h = k + w + h + S0 # -- + add y2,d # d = k + w + h + d + S1 + CH = d + t1 # -- + add y2,h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + + add y3,h # h = t1 + S0 + MAJ # -- + + + ROTATE_ARGS + +################################### RND N + 3 ############################ + + mov a, y3 # y3 = a # MAJA + rorx $25, e, y0 # y0 = e >> 25 # S1A + rorx $11, e, y1 # y1 = e >> 11 # S1B + offset = \disp + 3*4 + addl offset(%rsp, SRND), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + + vpsrld $10, XTMP2, XTMP5 # XTMP5 = W[-2] >> 10 {DDCC} + mov f, y2 # y2 = f # CH + rorx $13, a, T1 # T1 = a >> 13 # S0B + xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1 + xor g, y2 # y2 = f^g # CH + + + vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] ror 19 {xDxC} + rorx $6, e, y1 # y1 = (e >> 6) # S1 + and e, y2 # y2 = (f^g)&e # CH + add h, d # d = k + w + h + d # -- + and b, y3 # y3 = (a|c)&b # MAJA + + vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] ror 17 {xDxC} + xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1 + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + + vpxor XTMP3, XTMP2, XTMP2 + rorx $22, a, y1 # y1 = a >> 22 # S0A + add y0, y2 # y2 = S1 + CH # -- + + vpxor XTMP2, XTMP5, XTMP5 # XTMP5 = s1 {xDxC} + xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0 + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + rorx $2, a, T1 # T1 = (a >> 2) # S0 + vpshufb SHUF_DC00, XTMP5, XTMP5 # XTMP5 = s1 {DC00} + + vpaddd XTMP0, XTMP5, X0 # X0 = {W[3], W[2], W[1], W[0]} + xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0 + mov a, T1 # T1 = a # MAJB + and c, T1 # T1 = a&c # MAJB + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + + add y1, h # h = k + w + h + S0 # -- + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + add y3, h # h = t1 + S0 + MAJ # -- + + ROTATE_ARGS + rotate_Xs +.endm + +.macro DO_4ROUNDS disp +################################### RND N + 0 ########################### + + mov f, y2 # y2 = f # CH + rorx $25, e, y0 # y0 = e >> 25 # S1A + rorx $11, e, y1 # y1 = e >> 11 # S1B + xor g, y2 # y2 = f^g # CH + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1 + rorx $6, e, y1 # y1 = (e >> 6) # S1 + and e, y2 # y2 = (f^g)&e # CH + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1 + rorx $13, a, T1 # T1 = a >> 13 # S0B + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + rorx $22, a, y1 # y1 = a >> 22 # S0A + mov a, y3 # y3 = a # MAJA + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0 + rorx $2, a, T1 # T1 = (a >> 2) # S0 + addl \disp(%rsp, SRND), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0 + mov a, T1 # T1 = a # MAJB + and b, y3 # y3 = (a|c)&b # MAJA + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + + add h, d # d = k + w + h + d # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + ROTATE_ARGS + +################################### RND N + 1 ########################### + + add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + mov f, y2 # y2 = f # CH + rorx $25, e, y0 # y0 = e >> 25 # S1A + rorx $11, e, y1 # y1 = e >> 11 # S1B + xor g, y2 # y2 = f^g # CH + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1 + rorx $6, e, y1 # y1 = (e >> 6) # S1 + and e, y2 # y2 = (f^g)&e # CH + add y3, old_h # h = t1 + S0 + MAJ # -- + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1 + rorx $13, a, T1 # T1 = a >> 13 # S0B + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + rorx $22, a, y1 # y1 = a >> 22 # S0A + mov a, y3 # y3 = a # MAJA + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0 + rorx $2, a, T1 # T1 = (a >> 2) # S0 + offset = 4*1 + \disp + addl offset(%rsp, SRND), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0 + mov a, T1 # T1 = a # MAJB + and b, y3 # y3 = (a|c)&b # MAJA + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + + add h, d # d = k + w + h + d # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + ROTATE_ARGS + +################################### RND N + 2 ############################## + + add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + mov f, y2 # y2 = f # CH + rorx $25, e, y0 # y0 = e >> 25 # S1A + rorx $11, e, y1 # y1 = e >> 11 # S1B + xor g, y2 # y2 = f^g # CH + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1 + rorx $6, e, y1 # y1 = (e >> 6) # S1 + and e, y2 # y2 = (f^g)&e # CH + add y3, old_h # h = t1 + S0 + MAJ # -- + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1 + rorx $13, a, T1 # T1 = a >> 13 # S0B + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + rorx $22, a, y1 # y1 = a >> 22 # S0A + mov a, y3 # y3 = a # MAJA + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0 + rorx $2, a, T1 # T1 = (a >> 2) # S0 + offset = 4*2 + \disp + addl offset(%rsp, SRND), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0 + mov a, T1 # T1 = a # MAJB + and b, y3 # y3 = (a|c)&b # MAJA + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + + add h, d # d = k + w + h + d # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + ROTATE_ARGS + +################################### RND N + 3 ########################### + + add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + mov f, y2 # y2 = f # CH + rorx $25, e, y0 # y0 = e >> 25 # S1A + rorx $11, e, y1 # y1 = e >> 11 # S1B + xor g, y2 # y2 = f^g # CH + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1 + rorx $6, e, y1 # y1 = (e >> 6) # S1 + and e, y2 # y2 = (f^g)&e # CH + add y3, old_h # h = t1 + S0 + MAJ # -- + + xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1 + rorx $13, a, T1 # T1 = a >> 13 # S0B + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + rorx $22, a, y1 # y1 = a >> 22 # S0A + mov a, y3 # y3 = a # MAJA + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0 + rorx $2, a, T1 # T1 = (a >> 2) # S0 + offset = 4*3 + \disp + addl offset(%rsp, SRND), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0 + mov a, T1 # T1 = a # MAJB + and b, y3 # y3 = (a|c)&b # MAJA + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + + add h, d # d = k + w + h + d # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + + add y3, h # h = t1 + S0 + MAJ # -- + + ROTATE_ARGS + +.endm + +######################################################################## +## void sha256_transform_rorx(void *input_data, UINT32 digest[8], UINT64 num_blks) +## arg 1 : pointer to digest +## arg 2 : pointer to input data +## arg 3 : Num blocks +######################################################################## +.text +ENTRY(sha256_transform_rorx) +.align 32 + pushq %rbx + pushq %r12 + pushq %r13 + pushq %r14 + pushq %r15 + + mov %rsp, %rax + subq $STACK_SIZE, %rsp + and $-32, %rsp # align rsp to 32 byte boundary + mov %rax, _RSP(%rsp) + + + shl $6, NUM_BLKS # convert to bytes + jz done_hash + lea -64(INP, NUM_BLKS), NUM_BLKS # pointer to last block + mov NUM_BLKS, _INP_END(%rsp) + + cmp NUM_BLKS, INP + je only_one_block + + ## load initial digest + mov (CTX), a + mov 4*1(CTX), b + mov 4*2(CTX), c + mov 4*3(CTX), d + mov 4*4(CTX), e + mov 4*5(CTX), f + mov 4*6(CTX), g + mov 4*7(CTX), h + + vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK + vmovdqa _SHUF_00BA(%rip), SHUF_00BA + vmovdqa _SHUF_DC00(%rip), SHUF_DC00 + + mov CTX, _CTX(%rsp) + +loop0: + ## Load first 16 dwords from two blocks + VMOVDQ 0*32(INP),XTMP0 + VMOVDQ 1*32(INP),XTMP1 + VMOVDQ 2*32(INP),XTMP2 + VMOVDQ 3*32(INP),XTMP3 + + ## byte swap data + vpshufb BYTE_FLIP_MASK, XTMP0, XTMP0 + vpshufb BYTE_FLIP_MASK, XTMP1, XTMP1 + vpshufb BYTE_FLIP_MASK, XTMP2, XTMP2 + vpshufb BYTE_FLIP_MASK, XTMP3, XTMP3 + + ## transpose data into high/low halves + vperm2i128 $0x20, XTMP2, XTMP0, X0 + vperm2i128 $0x31, XTMP2, XTMP0, X1 + vperm2i128 $0x20, XTMP3, XTMP1, X2 + vperm2i128 $0x31, XTMP3, XTMP1, X3 + +last_block_enter: + add $64, INP + mov INP, _INP(%rsp) + + ## schedule 48 input dwords, by doing 3 rounds of 12 each + xor SRND, SRND + +.align 16 +loop1: + vpaddd K256+0*32(SRND), X0, XFER + vmovdqa XFER, 0*32+_XFER(%rsp, SRND) + FOUR_ROUNDS_AND_SCHED _XFER + 0*32 + + vpaddd K256+1*32(SRND), X0, XFER + vmovdqa XFER, 1*32+_XFER(%rsp, SRND) + FOUR_ROUNDS_AND_SCHED _XFER + 1*32 + + vpaddd K256+2*32(SRND), X0, XFER + vmovdqa XFER, 2*32+_XFER(%rsp, SRND) + FOUR_ROUNDS_AND_SCHED _XFER + 2*32 + + vpaddd K256+3*32(SRND), X0, XFER + vmovdqa XFER, 3*32+_XFER(%rsp, SRND) + FOUR_ROUNDS_AND_SCHED _XFER + 3*32 + + add $4*32, SRND + cmp $3*4*32, SRND + jb loop1 + +loop2: + ## Do last 16 rounds with no scheduling + vpaddd K256+0*32(SRND), X0, XFER + vmovdqa XFER, 0*32+_XFER(%rsp, SRND) + DO_4ROUNDS _XFER + 0*32 + + vpaddd K256+1*32(SRND), X1, XFER + vmovdqa XFER, 1*32+_XFER(%rsp, SRND) + DO_4ROUNDS _XFER + 1*32 + add $2*32, SRND + + vmovdqa X2, X0 + vmovdqa X3, X1 + + cmp $4*4*32, SRND + jb loop2 + + mov _CTX(%rsp), CTX + mov _INP(%rsp), INP + + addm (4*0)(CTX),a + addm (4*1)(CTX),b + addm (4*2)(CTX),c + addm (4*3)(CTX),d + addm (4*4)(CTX),e + addm (4*5)(CTX),f + addm (4*6)(CTX),g + addm (4*7)(CTX),h + + cmp _INP_END(%rsp), INP + ja done_hash + + #### Do second block using previously scheduled results + xor SRND, SRND +.align 16 +loop3: + DO_4ROUNDS _XFER + 0*32 + 16 + DO_4ROUNDS _XFER + 1*32 + 16 + add $2*32, SRND + cmp $4*4*32, SRND + jb loop3 + + mov _CTX(%rsp), CTX + mov _INP(%rsp), INP + add $64, INP + + addm (4*0)(CTX),a + addm (4*1)(CTX),b + addm (4*2)(CTX),c + addm (4*3)(CTX),d + addm (4*4)(CTX),e + addm (4*5)(CTX),f + addm (4*6)(CTX),g + addm (4*7)(CTX),h + + cmp _INP_END(%rsp), INP + jb loop0 + ja done_hash + +do_last_block: + VMOVDQ 0*16(INP),XWORD0 + VMOVDQ 1*16(INP),XWORD1 + VMOVDQ 2*16(INP),XWORD2 + VMOVDQ 3*16(INP),XWORD3 + + vpshufb X_BYTE_FLIP_MASK, XWORD0, XWORD0 + vpshufb X_BYTE_FLIP_MASK, XWORD1, XWORD1 + vpshufb X_BYTE_FLIP_MASK, XWORD2, XWORD2 + vpshufb X_BYTE_FLIP_MASK, XWORD3, XWORD3 + + jmp last_block_enter + +only_one_block: + + ## load initial digest + mov (4*0)(CTX),a + mov (4*1)(CTX),b + mov (4*2)(CTX),c + mov (4*3)(CTX),d + mov (4*4)(CTX),e + mov (4*5)(CTX),f + mov (4*6)(CTX),g + mov (4*7)(CTX),h + + vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK + vmovdqa _SHUF_00BA(%rip), SHUF_00BA + vmovdqa _SHUF_DC00(%rip), SHUF_DC00 + + mov CTX, _CTX(%rsp) + jmp do_last_block + +done_hash: + + mov _RSP(%rsp), %rsp + + popq %r15 + popq %r14 + popq %r13 + popq %r12 + popq %rbx + ret +ENDPROC(sha256_transform_rorx) + +.section .rodata.cst512.K256, "aM", @progbits, 512 +.align 64 +K256: + .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 + .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 + +.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32 +.align 32 +PSHUFFLE_BYTE_FLIP_MASK: + .octa 0x0c0d0e0f08090a0b0405060700010203,0x0c0d0e0f08090a0b0405060700010203 + +# shuffle xBxA -> 00BA +.section .rodata.cst32._SHUF_00BA, "aM", @progbits, 32 +.align 32 +_SHUF_00BA: + .octa 0xFFFFFFFFFFFFFFFF0b0a090803020100,0xFFFFFFFFFFFFFFFF0b0a090803020100 + +# shuffle xDxC -> DC00 +.section .rodata.cst32._SHUF_DC00, "aM", @progbits, 32 +.align 32 +_SHUF_DC00: + .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF,0x0b0a090803020100FFFFFFFFFFFFFFFF + +#endif diff --git a/arch/x86/crypto/sha256-mb/Makefile b/arch/x86/crypto/sha256-mb/Makefile new file mode 100644 index 000000000..53ad6e7db --- /dev/null +++ b/arch/x86/crypto/sha256-mb/Makefile @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Arch-specific CryptoAPI modules. +# + +OBJECT_FILES_NON_STANDARD := y + +avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ + $(comma)4)$(comma)%ymm2,yes,no) +ifeq ($(avx2_supported),yes) + obj-$(CONFIG_CRYPTO_SHA256_MB) += sha256-mb.o + sha256-mb-y := sha256_mb.o sha256_mb_mgr_flush_avx2.o \ + sha256_mb_mgr_init_avx2.o sha256_mb_mgr_submit_avx2.o sha256_x8_avx2.o +endif diff --git a/arch/x86/crypto/sha256-mb/sha256_mb.c b/arch/x86/crypto/sha256-mb/sha256_mb.c new file mode 100644 index 000000000..97c5fc43e --- /dev/null +++ b/arch/x86/crypto/sha256-mb/sha256_mb.c @@ -0,0 +1,1013 @@ +/* + * Multi buffer SHA256 algorithm Glue Code + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/cryptohash.h> +#include <linux/types.h> +#include <linux/list.h> +#include <crypto/scatterwalk.h> +#include <crypto/sha.h> +#include <crypto/mcryptd.h> +#include <crypto/crypto_wq.h> +#include <asm/byteorder.h> +#include <linux/hardirq.h> +#include <asm/fpu/api.h> +#include "sha256_mb_ctx.h" + +#define FLUSH_INTERVAL 1000 /* in usec */ + +static struct mcryptd_alg_state sha256_mb_alg_state; + +struct sha256_mb_ctx { + struct mcryptd_ahash *mcryptd_tfm; +}; + +static inline struct mcryptd_hash_request_ctx + *cast_hash_to_mcryptd_ctx(struct sha256_hash_ctx *hash_ctx) +{ + struct ahash_request *areq; + + areq = container_of((void *) hash_ctx, struct ahash_request, __ctx); + return container_of(areq, struct mcryptd_hash_request_ctx, areq); +} + +static inline struct ahash_request + *cast_mcryptd_ctx_to_req(struct mcryptd_hash_request_ctx *ctx) +{ + return container_of((void *) ctx, struct ahash_request, __ctx); +} + +static void req_ctx_init(struct mcryptd_hash_request_ctx *rctx, + struct ahash_request *areq) +{ + rctx->flag = HASH_UPDATE; +} + +static asmlinkage void (*sha256_job_mgr_init)(struct sha256_mb_mgr *state); +static asmlinkage struct job_sha256* (*sha256_job_mgr_submit) + (struct sha256_mb_mgr *state, struct job_sha256 *job); +static asmlinkage struct job_sha256* (*sha256_job_mgr_flush) + (struct sha256_mb_mgr *state); +static asmlinkage struct job_sha256* (*sha256_job_mgr_get_comp_job) + (struct sha256_mb_mgr *state); + +inline uint32_t sha256_pad(uint8_t padblock[SHA256_BLOCK_SIZE * 2], + uint64_t total_len) +{ + uint32_t i = total_len & (SHA256_BLOCK_SIZE - 1); + + memset(&padblock[i], 0, SHA256_BLOCK_SIZE); + padblock[i] = 0x80; + + i += ((SHA256_BLOCK_SIZE - 1) & + (0 - (total_len + SHA256_PADLENGTHFIELD_SIZE + 1))) + + 1 + SHA256_PADLENGTHFIELD_SIZE; + +#if SHA256_PADLENGTHFIELD_SIZE == 16 + *((uint64_t *) &padblock[i - 16]) = 0; +#endif + + *((uint64_t *) &padblock[i - 8]) = cpu_to_be64(total_len << 3); + + /* Number of extra blocks to hash */ + return i >> SHA256_LOG2_BLOCK_SIZE; +} + +static struct sha256_hash_ctx + *sha256_ctx_mgr_resubmit(struct sha256_ctx_mgr *mgr, + struct sha256_hash_ctx *ctx) +{ + while (ctx) { + if (ctx->status & HASH_CTX_STS_COMPLETE) { + /* Clear PROCESSING bit */ + ctx->status = HASH_CTX_STS_COMPLETE; + return ctx; + } + + /* + * If the extra blocks are empty, begin hashing what remains + * in the user's buffer. + */ + if (ctx->partial_block_buffer_length == 0 && + ctx->incoming_buffer_length) { + + const void *buffer = ctx->incoming_buffer; + uint32_t len = ctx->incoming_buffer_length; + uint32_t copy_len; + + /* + * Only entire blocks can be hashed. + * Copy remainder to extra blocks buffer. + */ + copy_len = len & (SHA256_BLOCK_SIZE-1); + + if (copy_len) { + len -= copy_len; + memcpy(ctx->partial_block_buffer, + ((const char *) buffer + len), + copy_len); + ctx->partial_block_buffer_length = copy_len; + } + + ctx->incoming_buffer_length = 0; + + /* len should be a multiple of the block size now */ + assert((len % SHA256_BLOCK_SIZE) == 0); + + /* Set len to the number of blocks to be hashed */ + len >>= SHA256_LOG2_BLOCK_SIZE; + + if (len) { + + ctx->job.buffer = (uint8_t *) buffer; + ctx->job.len = len; + ctx = (struct sha256_hash_ctx *) + sha256_job_mgr_submit(&mgr->mgr, &ctx->job); + continue; + } + } + + /* + * If the extra blocks are not empty, then we are + * either on the last block(s) or we need more + * user input before continuing. + */ + if (ctx->status & HASH_CTX_STS_LAST) { + + uint8_t *buf = ctx->partial_block_buffer; + uint32_t n_extra_blocks = + sha256_pad(buf, ctx->total_length); + + ctx->status = (HASH_CTX_STS_PROCESSING | + HASH_CTX_STS_COMPLETE); + ctx->job.buffer = buf; + ctx->job.len = (uint32_t) n_extra_blocks; + ctx = (struct sha256_hash_ctx *) + sha256_job_mgr_submit(&mgr->mgr, &ctx->job); + continue; + } + + ctx->status = HASH_CTX_STS_IDLE; + return ctx; + } + + return NULL; +} + +static struct sha256_hash_ctx + *sha256_ctx_mgr_get_comp_ctx(struct sha256_ctx_mgr *mgr) +{ + /* + * If get_comp_job returns NULL, there are no jobs complete. + * If get_comp_job returns a job, verify that it is safe to return to + * the user. If it is not ready, resubmit the job to finish processing. + * If sha256_ctx_mgr_resubmit returned a job, it is ready to be + * returned. Otherwise, all jobs currently being managed by the + * hash_ctx_mgr still need processing. + */ + struct sha256_hash_ctx *ctx; + + ctx = (struct sha256_hash_ctx *) sha256_job_mgr_get_comp_job(&mgr->mgr); + return sha256_ctx_mgr_resubmit(mgr, ctx); +} + +static void sha256_ctx_mgr_init(struct sha256_ctx_mgr *mgr) +{ + sha256_job_mgr_init(&mgr->mgr); +} + +static struct sha256_hash_ctx *sha256_ctx_mgr_submit(struct sha256_ctx_mgr *mgr, + struct sha256_hash_ctx *ctx, + const void *buffer, + uint32_t len, + int flags) +{ + if (flags & ~(HASH_UPDATE | HASH_LAST)) { + /* User should not pass anything other than UPDATE or LAST */ + ctx->error = HASH_CTX_ERROR_INVALID_FLAGS; + return ctx; + } + + if (ctx->status & HASH_CTX_STS_PROCESSING) { + /* Cannot submit to a currently processing job. */ + ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING; + return ctx; + } + + if (ctx->status & HASH_CTX_STS_COMPLETE) { + /* Cannot update a finished job. */ + ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED; + return ctx; + } + + /* If we made it here, there was no error during this call to submit */ + ctx->error = HASH_CTX_ERROR_NONE; + + /* Store buffer ptr info from user */ + ctx->incoming_buffer = buffer; + ctx->incoming_buffer_length = len; + + /* + * Store the user's request flags and mark this ctx as currently + * being processed. + */ + ctx->status = (flags & HASH_LAST) ? + (HASH_CTX_STS_PROCESSING | HASH_CTX_STS_LAST) : + HASH_CTX_STS_PROCESSING; + + /* Advance byte counter */ + ctx->total_length += len; + + /* + * If there is anything currently buffered in the extra blocks, + * append to it until it contains a whole block. + * Or if the user's buffer contains less than a whole block, + * append as much as possible to the extra block. + */ + if (ctx->partial_block_buffer_length || len < SHA256_BLOCK_SIZE) { + /* + * Compute how many bytes to copy from user buffer into + * extra block + */ + uint32_t copy_len = SHA256_BLOCK_SIZE - + ctx->partial_block_buffer_length; + if (len < copy_len) + copy_len = len; + + if (copy_len) { + /* Copy and update relevant pointers and counters */ + memcpy( + &ctx->partial_block_buffer[ctx->partial_block_buffer_length], + buffer, copy_len); + + ctx->partial_block_buffer_length += copy_len; + ctx->incoming_buffer = (const void *) + ((const char *)buffer + copy_len); + ctx->incoming_buffer_length = len - copy_len; + } + + /* The extra block should never contain more than 1 block */ + assert(ctx->partial_block_buffer_length <= SHA256_BLOCK_SIZE); + + /* + * If the extra block buffer contains exactly 1 block, + * it can be hashed. + */ + if (ctx->partial_block_buffer_length >= SHA256_BLOCK_SIZE) { + ctx->partial_block_buffer_length = 0; + + ctx->job.buffer = ctx->partial_block_buffer; + ctx->job.len = 1; + ctx = (struct sha256_hash_ctx *) + sha256_job_mgr_submit(&mgr->mgr, &ctx->job); + } + } + + return sha256_ctx_mgr_resubmit(mgr, ctx); +} + +static struct sha256_hash_ctx *sha256_ctx_mgr_flush(struct sha256_ctx_mgr *mgr) +{ + struct sha256_hash_ctx *ctx; + + while (1) { + ctx = (struct sha256_hash_ctx *) + sha256_job_mgr_flush(&mgr->mgr); + + /* If flush returned 0, there are no more jobs in flight. */ + if (!ctx) + return NULL; + + /* + * If flush returned a job, resubmit the job to finish + * processing. + */ + ctx = sha256_ctx_mgr_resubmit(mgr, ctx); + + /* + * If sha256_ctx_mgr_resubmit returned a job, it is ready to + * be returned. Otherwise, all jobs currently being managed by + * the sha256_ctx_mgr still need processing. Loop. + */ + if (ctx) + return ctx; + } +} + +static int sha256_mb_init(struct ahash_request *areq) +{ + struct sha256_hash_ctx *sctx = ahash_request_ctx(areq); + + hash_ctx_init(sctx); + sctx->job.result_digest[0] = SHA256_H0; + sctx->job.result_digest[1] = SHA256_H1; + sctx->job.result_digest[2] = SHA256_H2; + sctx->job.result_digest[3] = SHA256_H3; + sctx->job.result_digest[4] = SHA256_H4; + sctx->job.result_digest[5] = SHA256_H5; + sctx->job.result_digest[6] = SHA256_H6; + sctx->job.result_digest[7] = SHA256_H7; + sctx->total_length = 0; + sctx->partial_block_buffer_length = 0; + sctx->status = HASH_CTX_STS_IDLE; + + return 0; +} + +static int sha256_mb_set_results(struct mcryptd_hash_request_ctx *rctx) +{ + int i; + struct sha256_hash_ctx *sctx = ahash_request_ctx(&rctx->areq); + __be32 *dst = (__be32 *) rctx->out; + + for (i = 0; i < 8; ++i) + dst[i] = cpu_to_be32(sctx->job.result_digest[i]); + + return 0; +} + +static int sha_finish_walk(struct mcryptd_hash_request_ctx **ret_rctx, + struct mcryptd_alg_cstate *cstate, bool flush) +{ + int flag = HASH_UPDATE; + int nbytes, err = 0; + struct mcryptd_hash_request_ctx *rctx = *ret_rctx; + struct sha256_hash_ctx *sha_ctx; + + /* more work ? */ + while (!(rctx->flag & HASH_DONE)) { + nbytes = crypto_ahash_walk_done(&rctx->walk, 0); + if (nbytes < 0) { + err = nbytes; + goto out; + } + /* check if the walk is done */ + if (crypto_ahash_walk_last(&rctx->walk)) { + rctx->flag |= HASH_DONE; + if (rctx->flag & HASH_FINAL) + flag |= HASH_LAST; + + } + sha_ctx = (struct sha256_hash_ctx *) + ahash_request_ctx(&rctx->areq); + kernel_fpu_begin(); + sha_ctx = sha256_ctx_mgr_submit(cstate->mgr, sha_ctx, + rctx->walk.data, nbytes, flag); + if (!sha_ctx) { + if (flush) + sha_ctx = sha256_ctx_mgr_flush(cstate->mgr); + } + kernel_fpu_end(); + if (sha_ctx) + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + else { + rctx = NULL; + goto out; + } + } + + /* copy the results */ + if (rctx->flag & HASH_FINAL) + sha256_mb_set_results(rctx); + +out: + *ret_rctx = rctx; + return err; +} + +static int sha_complete_job(struct mcryptd_hash_request_ctx *rctx, + struct mcryptd_alg_cstate *cstate, + int err) +{ + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha256_hash_ctx *sha_ctx; + struct mcryptd_hash_request_ctx *req_ctx; + int ret; + + /* remove from work list */ + spin_lock(&cstate->work_lock); + list_del(&rctx->waiter); + spin_unlock(&cstate->work_lock); + + if (irqs_disabled()) + rctx->complete(&req->base, err); + else { + local_bh_disable(); + rctx->complete(&req->base, err); + local_bh_enable(); + } + + /* check to see if there are other jobs that are done */ + sha_ctx = sha256_ctx_mgr_get_comp_ctx(cstate->mgr); + while (sha_ctx) { + req_ctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&req_ctx, cstate, false); + if (req_ctx) { + spin_lock(&cstate->work_lock); + list_del(&req_ctx->waiter); + spin_unlock(&cstate->work_lock); + + req = cast_mcryptd_ctx_to_req(req_ctx); + if (irqs_disabled()) + req_ctx->complete(&req->base, ret); + else { + local_bh_disable(); + req_ctx->complete(&req->base, ret); + local_bh_enable(); + } + } + sha_ctx = sha256_ctx_mgr_get_comp_ctx(cstate->mgr); + } + + return 0; +} + +static void sha256_mb_add_list(struct mcryptd_hash_request_ctx *rctx, + struct mcryptd_alg_cstate *cstate) +{ + unsigned long next_flush; + unsigned long delay = usecs_to_jiffies(FLUSH_INTERVAL); + + /* initialize tag */ + rctx->tag.arrival = jiffies; /* tag the arrival time */ + rctx->tag.seq_num = cstate->next_seq_num++; + next_flush = rctx->tag.arrival + delay; + rctx->tag.expire = next_flush; + + spin_lock(&cstate->work_lock); + list_add_tail(&rctx->waiter, &cstate->work_list); + spin_unlock(&cstate->work_lock); + + mcryptd_arm_flusher(cstate, delay); +} + +static int sha256_mb_update(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha256_mb_alg_state.alg_cstate); + + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha256_hash_ctx *sha_ctx; + int ret = 0, nbytes; + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + nbytes = crypto_ahash_walk_first(req, &rctx->walk); + + if (nbytes < 0) { + ret = nbytes; + goto done; + } + + if (crypto_ahash_walk_last(&rctx->walk)) + rctx->flag |= HASH_DONE; + + /* submit */ + sha_ctx = (struct sha256_hash_ctx *) ahash_request_ctx(areq); + sha256_mb_add_list(rctx, cstate); + kernel_fpu_begin(); + sha_ctx = sha256_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data, + nbytes, HASH_UPDATE); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha256_mb_finup(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha256_mb_alg_state.alg_cstate); + + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha256_hash_ctx *sha_ctx; + int ret = 0, flag = HASH_UPDATE, nbytes; + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + nbytes = crypto_ahash_walk_first(req, &rctx->walk); + + if (nbytes < 0) { + ret = nbytes; + goto done; + } + + if (crypto_ahash_walk_last(&rctx->walk)) { + rctx->flag |= HASH_DONE; + flag = HASH_LAST; + } + + /* submit */ + rctx->flag |= HASH_FINAL; + sha_ctx = (struct sha256_hash_ctx *) ahash_request_ctx(areq); + sha256_mb_add_list(rctx, cstate); + + kernel_fpu_begin(); + sha_ctx = sha256_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data, + nbytes, flag); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha256_mb_final(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, + areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha256_mb_alg_state.alg_cstate); + + struct sha256_hash_ctx *sha_ctx; + int ret = 0; + u8 data; + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + rctx->flag |= HASH_DONE | HASH_FINAL; + + sha_ctx = (struct sha256_hash_ctx *) ahash_request_ctx(areq); + /* flag HASH_FINAL and 0 data size */ + sha256_mb_add_list(rctx, cstate); + kernel_fpu_begin(); + sha_ctx = sha256_ctx_mgr_submit(cstate->mgr, sha_ctx, &data, 0, + HASH_LAST); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha256_mb_export(struct ahash_request *areq, void *out) +{ + struct sha256_hash_ctx *sctx = ahash_request_ctx(areq); + + memcpy(out, sctx, sizeof(*sctx)); + + return 0; +} + +static int sha256_mb_import(struct ahash_request *areq, const void *in) +{ + struct sha256_hash_ctx *sctx = ahash_request_ctx(areq); + + memcpy(sctx, in, sizeof(*sctx)); + + return 0; +} + +static int sha256_mb_async_init_tfm(struct crypto_tfm *tfm) +{ + struct mcryptd_ahash *mcryptd_tfm; + struct sha256_mb_ctx *ctx = crypto_tfm_ctx(tfm); + struct mcryptd_hash_ctx *mctx; + + mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha256-mb", + CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(mcryptd_tfm)) + return PTR_ERR(mcryptd_tfm); + mctx = crypto_ahash_ctx(&mcryptd_tfm->base); + mctx->alg_state = &sha256_mb_alg_state; + ctx->mcryptd_tfm = mcryptd_tfm; + crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), + sizeof(struct ahash_request) + + crypto_ahash_reqsize(&mcryptd_tfm->base)); + + return 0; +} + +static void sha256_mb_async_exit_tfm(struct crypto_tfm *tfm) +{ + struct sha256_mb_ctx *ctx = crypto_tfm_ctx(tfm); + + mcryptd_free_ahash(ctx->mcryptd_tfm); +} + +static int sha256_mb_areq_init_tfm(struct crypto_tfm *tfm) +{ + crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), + sizeof(struct ahash_request) + + sizeof(struct sha256_hash_ctx)); + + return 0; +} + +static void sha256_mb_areq_exit_tfm(struct crypto_tfm *tfm) +{ + struct sha256_mb_ctx *ctx = crypto_tfm_ctx(tfm); + + mcryptd_free_ahash(ctx->mcryptd_tfm); +} + +static struct ahash_alg sha256_mb_areq_alg = { + .init = sha256_mb_init, + .update = sha256_mb_update, + .final = sha256_mb_final, + .finup = sha256_mb_finup, + .export = sha256_mb_export, + .import = sha256_mb_import, + .halg = { + .digestsize = SHA256_DIGEST_SIZE, + .statesize = sizeof(struct sha256_hash_ctx), + .base = { + .cra_name = "__sha256-mb", + .cra_driver_name = "__intel_sha256-mb", + .cra_priority = 100, + /* + * use ASYNC flag as some buffers in multi-buffer + * algo may not have completed before hashing thread + * sleep + */ + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_INTERNAL, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT + (sha256_mb_areq_alg.halg.base.cra_list), + .cra_init = sha256_mb_areq_init_tfm, + .cra_exit = sha256_mb_areq_exit_tfm, + .cra_ctxsize = sizeof(struct sha256_hash_ctx), + } + } +}; + +static int sha256_mb_async_init(struct ahash_request *req) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_init(mcryptd_req); +} + +static int sha256_mb_async_update(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_update(mcryptd_req); +} + +static int sha256_mb_async_finup(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_finup(mcryptd_req); +} + +static int sha256_mb_async_final(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_final(mcryptd_req); +} + +static int sha256_mb_async_digest(struct ahash_request *req) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_digest(mcryptd_req); +} + +static int sha256_mb_async_export(struct ahash_request *req, void *out) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_export(mcryptd_req, out); +} + +static int sha256_mb_async_import(struct ahash_request *req, const void *in) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + struct crypto_ahash *child = mcryptd_ahash_child(mcryptd_tfm); + struct mcryptd_hash_request_ctx *rctx; + struct ahash_request *areq; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + rctx = ahash_request_ctx(mcryptd_req); + areq = &rctx->areq; + + ahash_request_set_tfm(areq, child); + ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_SLEEP, + rctx->complete, req); + + return crypto_ahash_import(mcryptd_req, in); +} + +static struct ahash_alg sha256_mb_async_alg = { + .init = sha256_mb_async_init, + .update = sha256_mb_async_update, + .final = sha256_mb_async_final, + .finup = sha256_mb_async_finup, + .export = sha256_mb_async_export, + .import = sha256_mb_async_import, + .digest = sha256_mb_async_digest, + .halg = { + .digestsize = SHA256_DIGEST_SIZE, + .statesize = sizeof(struct sha256_hash_ctx), + .base = { + .cra_name = "sha256", + .cra_driver_name = "sha256_mb", + /* + * Low priority, since with few concurrent hash requests + * this is extremely slow due to the flush delay. Users + * whose workloads would benefit from this can request + * it explicitly by driver name, or can increase its + * priority at runtime using NETLINK_CRYPTO. + */ + .cra_priority = 50, + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT + (sha256_mb_async_alg.halg.base.cra_list), + .cra_init = sha256_mb_async_init_tfm, + .cra_exit = sha256_mb_async_exit_tfm, + .cra_ctxsize = sizeof(struct sha256_mb_ctx), + .cra_alignmask = 0, + }, + }, +}; + +static unsigned long sha256_mb_flusher(struct mcryptd_alg_cstate *cstate) +{ + struct mcryptd_hash_request_ctx *rctx; + unsigned long cur_time; + unsigned long next_flush = 0; + struct sha256_hash_ctx *sha_ctx; + + + cur_time = jiffies; + + while (!list_empty(&cstate->work_list)) { + rctx = list_entry(cstate->work_list.next, + struct mcryptd_hash_request_ctx, waiter); + if (time_before(cur_time, rctx->tag.expire)) + break; + kernel_fpu_begin(); + sha_ctx = (struct sha256_hash_ctx *) + sha256_ctx_mgr_flush(cstate->mgr); + kernel_fpu_end(); + if (!sha_ctx) { + pr_err("sha256_mb error: nothing got" + " flushed for non-empty list\n"); + break; + } + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + sha_finish_walk(&rctx, cstate, true); + sha_complete_job(rctx, cstate, 0); + } + + if (!list_empty(&cstate->work_list)) { + rctx = list_entry(cstate->work_list.next, + struct mcryptd_hash_request_ctx, waiter); + /* get the hash context and then flush time */ + next_flush = rctx->tag.expire; + mcryptd_arm_flusher(cstate, get_delay(next_flush)); + } + return next_flush; +} + +static int __init sha256_mb_mod_init(void) +{ + + int cpu; + int err; + struct mcryptd_alg_cstate *cpu_state; + + /* check for dependent cpu features */ + if (!boot_cpu_has(X86_FEATURE_AVX2) || + !boot_cpu_has(X86_FEATURE_BMI2)) + return -ENODEV; + + /* initialize multibuffer structures */ + sha256_mb_alg_state.alg_cstate = alloc_percpu + (struct mcryptd_alg_cstate); + + sha256_job_mgr_init = sha256_mb_mgr_init_avx2; + sha256_job_mgr_submit = sha256_mb_mgr_submit_avx2; + sha256_job_mgr_flush = sha256_mb_mgr_flush_avx2; + sha256_job_mgr_get_comp_job = sha256_mb_mgr_get_comp_job_avx2; + + if (!sha256_mb_alg_state.alg_cstate) + return -ENOMEM; + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha256_mb_alg_state.alg_cstate, cpu); + cpu_state->next_flush = 0; + cpu_state->next_seq_num = 0; + cpu_state->flusher_engaged = false; + INIT_DELAYED_WORK(&cpu_state->flush, mcryptd_flusher); + cpu_state->cpu = cpu; + cpu_state->alg_state = &sha256_mb_alg_state; + cpu_state->mgr = kzalloc(sizeof(struct sha256_ctx_mgr), + GFP_KERNEL); + if (!cpu_state->mgr) + goto err2; + sha256_ctx_mgr_init(cpu_state->mgr); + INIT_LIST_HEAD(&cpu_state->work_list); + spin_lock_init(&cpu_state->work_lock); + } + sha256_mb_alg_state.flusher = &sha256_mb_flusher; + + err = crypto_register_ahash(&sha256_mb_areq_alg); + if (err) + goto err2; + err = crypto_register_ahash(&sha256_mb_async_alg); + if (err) + goto err1; + + + return 0; +err1: + crypto_unregister_ahash(&sha256_mb_areq_alg); +err2: + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha256_mb_alg_state.alg_cstate, cpu); + kfree(cpu_state->mgr); + } + free_percpu(sha256_mb_alg_state.alg_cstate); + return -ENODEV; +} + +static void __exit sha256_mb_mod_fini(void) +{ + int cpu; + struct mcryptd_alg_cstate *cpu_state; + + crypto_unregister_ahash(&sha256_mb_async_alg); + crypto_unregister_ahash(&sha256_mb_areq_alg); + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha256_mb_alg_state.alg_cstate, cpu); + kfree(cpu_state->mgr); + } + free_percpu(sha256_mb_alg_state.alg_cstate); +} + +module_init(sha256_mb_mod_init); +module_exit(sha256_mb_mod_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm, multi buffer accelerated"); + +MODULE_ALIAS_CRYPTO("sha256"); diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_ctx.h b/arch/x86/crypto/sha256-mb/sha256_mb_ctx.h new file mode 100644 index 000000000..7c432543d --- /dev/null +++ b/arch/x86/crypto/sha256-mb/sha256_mb_ctx.h @@ -0,0 +1,134 @@ +/* + * Header file for multi buffer SHA256 context + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SHA_MB_CTX_INTERNAL_H +#define _SHA_MB_CTX_INTERNAL_H + +#include "sha256_mb_mgr.h" + +#define HASH_UPDATE 0x00 +#define HASH_LAST 0x01 +#define HASH_DONE 0x02 +#define HASH_FINAL 0x04 + +#define HASH_CTX_STS_IDLE 0x00 +#define HASH_CTX_STS_PROCESSING 0x01 +#define HASH_CTX_STS_LAST 0x02 +#define HASH_CTX_STS_COMPLETE 0x04 + +enum hash_ctx_error { + HASH_CTX_ERROR_NONE = 0, + HASH_CTX_ERROR_INVALID_FLAGS = -1, + HASH_CTX_ERROR_ALREADY_PROCESSING = -2, + HASH_CTX_ERROR_ALREADY_COMPLETED = -3, + +#ifdef HASH_CTX_DEBUG + HASH_CTX_ERROR_DEBUG_DIGEST_MISMATCH = -4, +#endif +}; + + +#define hash_ctx_user_data(ctx) ((ctx)->user_data) +#define hash_ctx_digest(ctx) ((ctx)->job.result_digest) +#define hash_ctx_processing(ctx) ((ctx)->status & HASH_CTX_STS_PROCESSING) +#define hash_ctx_complete(ctx) ((ctx)->status == HASH_CTX_STS_COMPLETE) +#define hash_ctx_status(ctx) ((ctx)->status) +#define hash_ctx_error(ctx) ((ctx)->error) +#define hash_ctx_init(ctx) \ + do { \ + (ctx)->error = HASH_CTX_ERROR_NONE; \ + (ctx)->status = HASH_CTX_STS_COMPLETE; \ + } while (0) + + +/* Hash Constants and Typedefs */ +#define SHA256_DIGEST_LENGTH 8 +#define SHA256_LOG2_BLOCK_SIZE 6 + +#define SHA256_PADLENGTHFIELD_SIZE 8 + +#ifdef SHA_MB_DEBUG +#define assert(expr) \ +do { \ + if (unlikely(!(expr))) { \ + printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \ + #expr, __FILE__, __func__, __LINE__); \ + } \ +} while (0) +#else +#define assert(expr) do {} while (0) +#endif + +struct sha256_ctx_mgr { + struct sha256_mb_mgr mgr; +}; + +/* typedef struct sha256_ctx_mgr sha256_ctx_mgr; */ + +struct sha256_hash_ctx { + /* Must be at struct offset 0 */ + struct job_sha256 job; + /* status flag */ + int status; + /* error flag */ + int error; + + uint64_t total_length; + const void *incoming_buffer; + uint32_t incoming_buffer_length; + uint8_t partial_block_buffer[SHA256_BLOCK_SIZE * 2]; + uint32_t partial_block_buffer_length; + void *user_data; +}; + +#endif diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_mgr.h b/arch/x86/crypto/sha256-mb/sha256_mb_mgr.h new file mode 100644 index 000000000..b01ae408c --- /dev/null +++ b/arch/x86/crypto/sha256-mb/sha256_mb_mgr.h @@ -0,0 +1,108 @@ +/* + * Header file for multi buffer SHA256 algorithm manager + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __SHA_MB_MGR_H +#define __SHA_MB_MGR_H + +#include <linux/types.h> + +#define NUM_SHA256_DIGEST_WORDS 8 + +enum job_sts { STS_UNKNOWN = 0, + STS_BEING_PROCESSED = 1, + STS_COMPLETED = 2, + STS_INTERNAL_ERROR = 3, + STS_ERROR = 4 +}; + +struct job_sha256 { + u8 *buffer; + u32 len; + u32 result_digest[NUM_SHA256_DIGEST_WORDS] __aligned(32); + enum job_sts status; + void *user_data; +}; + +/* SHA256 out-of-order scheduler */ + +/* typedef uint32_t sha8_digest_array[8][8]; */ + +struct sha256_args_x8 { + uint32_t digest[8][8]; + uint8_t *data_ptr[8]; +}; + +struct sha256_lane_data { + struct job_sha256 *job_in_lane; +}; + +struct sha256_mb_mgr { + struct sha256_args_x8 args; + + uint32_t lens[8]; + + /* each byte is index (0...7) of unused lanes */ + uint64_t unused_lanes; + /* byte 4 is set to FF as a flag */ + struct sha256_lane_data ldata[8]; +}; + + +#define SHA256_MB_MGR_NUM_LANES_AVX2 8 + +void sha256_mb_mgr_init_avx2(struct sha256_mb_mgr *state); +struct job_sha256 *sha256_mb_mgr_submit_avx2(struct sha256_mb_mgr *state, + struct job_sha256 *job); +struct job_sha256 *sha256_mb_mgr_flush_avx2(struct sha256_mb_mgr *state); +struct job_sha256 *sha256_mb_mgr_get_comp_job_avx2(struct sha256_mb_mgr *state); + +#endif diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_mgr_datastruct.S b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_datastruct.S new file mode 100644 index 000000000..5c377bac2 --- /dev/null +++ b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_datastruct.S @@ -0,0 +1,304 @@ +/* + * Header file for multi buffer SHA256 algorithm data structure + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +# Macros for defining data structures + +# Usage example + +#START_FIELDS # JOB_AES +### name size align +#FIELD _plaintext, 8, 8 # pointer to plaintext +#FIELD _ciphertext, 8, 8 # pointer to ciphertext +#FIELD _IV, 16, 8 # IV +#FIELD _keys, 8, 8 # pointer to keys +#FIELD _len, 4, 4 # length in bytes +#FIELD _status, 4, 4 # status enumeration +#FIELD _user_data, 8, 8 # pointer to user data +#UNION _union, size1, align1, \ +# size2, align2, \ +# size3, align3, \ +# ... +#END_FIELDS +#%assign _JOB_AES_size _FIELD_OFFSET +#%assign _JOB_AES_align _STRUCT_ALIGN + +######################################################################### + +# Alternate "struc-like" syntax: +# STRUCT job_aes2 +# RES_Q .plaintext, 1 +# RES_Q .ciphertext, 1 +# RES_DQ .IV, 1 +# RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN +# RES_U .union, size1, align1, \ +# size2, align2, \ +# ... +# ENDSTRUCT +# # Following only needed if nesting +# %assign job_aes2_size _FIELD_OFFSET +# %assign job_aes2_align _STRUCT_ALIGN +# +# RES_* macros take a name, a count and an optional alignment. +# The count in in terms of the base size of the macro, and the +# default alignment is the base size. +# The macros are: +# Macro Base size +# RES_B 1 +# RES_W 2 +# RES_D 4 +# RES_Q 8 +# RES_DQ 16 +# RES_Y 32 +# RES_Z 64 +# +# RES_U defines a union. It's arguments are a name and two or more +# pairs of "size, alignment" +# +# The two assigns are only needed if this structure is being nested +# within another. Even if the assigns are not done, one can still use +# STRUCT_NAME_size as the size of the structure. +# +# Note that for nesting, you still need to assign to STRUCT_NAME_size. +# +# The differences between this and using "struc" directly are that each +# type is implicitly aligned to its natural length (although this can be +# over-ridden with an explicit third parameter), and that the structure +# is padded at the end to its overall alignment. +# + +######################################################################### + +#ifndef _DATASTRUCT_ASM_ +#define _DATASTRUCT_ASM_ + +#define SZ8 8*SHA256_DIGEST_WORD_SIZE +#define ROUNDS 64*SZ8 +#define PTR_SZ 8 +#define SHA256_DIGEST_WORD_SIZE 4 +#define MAX_SHA256_LANES 8 +#define SHA256_DIGEST_WORDS 8 +#define SHA256_DIGEST_ROW_SIZE (MAX_SHA256_LANES * SHA256_DIGEST_WORD_SIZE) +#define SHA256_DIGEST_SIZE (SHA256_DIGEST_ROW_SIZE * SHA256_DIGEST_WORDS) +#define SHA256_BLK_SZ 64 + +# START_FIELDS +.macro START_FIELDS + _FIELD_OFFSET = 0 + _STRUCT_ALIGN = 0 +.endm + +# FIELD name size align +.macro FIELD name size align + _FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1)) + \name = _FIELD_OFFSET + _FIELD_OFFSET = _FIELD_OFFSET + (\size) +.if (\align > _STRUCT_ALIGN) + _STRUCT_ALIGN = \align +.endif +.endm + +# END_FIELDS +.macro END_FIELDS + _FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1)) +.endm + +######################################################################## + +.macro STRUCT p1 +START_FIELDS +.struc \p1 +.endm + +.macro ENDSTRUCT + tmp = _FIELD_OFFSET + END_FIELDS + tmp = (_FIELD_OFFSET - %%tmp) +.if (tmp > 0) + .lcomm tmp +.endif +.endstruc +.endm + +## RES_int name size align +.macro RES_int p1 p2 p3 + name = \p1 + size = \p2 + align = .\p3 + + _FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1)) +.align align +.lcomm name size + _FIELD_OFFSET = _FIELD_OFFSET + (size) +.if (align > _STRUCT_ALIGN) + _STRUCT_ALIGN = align +.endif +.endm + +# macro RES_B name, size [, align] +.macro RES_B _name, _size, _align=1 +RES_int _name _size _align +.endm + +# macro RES_W name, size [, align] +.macro RES_W _name, _size, _align=2 +RES_int _name 2*(_size) _align +.endm + +# macro RES_D name, size [, align] +.macro RES_D _name, _size, _align=4 +RES_int _name 4*(_size) _align +.endm + +# macro RES_Q name, size [, align] +.macro RES_Q _name, _size, _align=8 +RES_int _name 8*(_size) _align +.endm + +# macro RES_DQ name, size [, align] +.macro RES_DQ _name, _size, _align=16 +RES_int _name 16*(_size) _align +.endm + +# macro RES_Y name, size [, align] +.macro RES_Y _name, _size, _align=32 +RES_int _name 32*(_size) _align +.endm + +# macro RES_Z name, size [, align] +.macro RES_Z _name, _size, _align=64 +RES_int _name 64*(_size) _align +.endm + +#endif + + +######################################################################## +#### Define SHA256 Out Of Order Data Structures +######################################################################## + +START_FIELDS # LANE_DATA +### name size align +FIELD _job_in_lane, 8, 8 # pointer to job object +END_FIELDS + + _LANE_DATA_size = _FIELD_OFFSET + _LANE_DATA_align = _STRUCT_ALIGN + +######################################################################## + +START_FIELDS # SHA256_ARGS_X4 +### name size align +FIELD _digest, 4*8*8, 4 # transposed digest +FIELD _data_ptr, 8*8, 8 # array of pointers to data +END_FIELDS + + _SHA256_ARGS_X4_size = _FIELD_OFFSET + _SHA256_ARGS_X4_align = _STRUCT_ALIGN + _SHA256_ARGS_X8_size = _FIELD_OFFSET + _SHA256_ARGS_X8_align = _STRUCT_ALIGN + +####################################################################### + +START_FIELDS # MB_MGR +### name size align +FIELD _args, _SHA256_ARGS_X4_size, _SHA256_ARGS_X4_align +FIELD _lens, 4*8, 8 +FIELD _unused_lanes, 8, 8 +FIELD _ldata, _LANE_DATA_size*8, _LANE_DATA_align +END_FIELDS + + _MB_MGR_size = _FIELD_OFFSET + _MB_MGR_align = _STRUCT_ALIGN + +_args_digest = _args + _digest +_args_data_ptr = _args + _data_ptr + +####################################################################### + +START_FIELDS #STACK_FRAME +### name size align +FIELD _data, 16*SZ8, 1 # transposed digest +FIELD _digest, 8*SZ8, 1 # array of pointers to data +FIELD _ytmp, 4*SZ8, 1 +FIELD _rsp, 8, 1 +END_FIELDS + + _STACK_FRAME_size = _FIELD_OFFSET + _STACK_FRAME_align = _STRUCT_ALIGN + +####################################################################### + +######################################################################## +#### Define constants +######################################################################## + +#define STS_UNKNOWN 0 +#define STS_BEING_PROCESSED 1 +#define STS_COMPLETED 2 + +######################################################################## +#### Define JOB_SHA256 structure +######################################################################## + +START_FIELDS # JOB_SHA256 + +### name size align +FIELD _buffer, 8, 8 # pointer to buffer +FIELD _len, 8, 8 # length in bytes +FIELD _result_digest, 8*4, 32 # Digest (output) +FIELD _status, 4, 4 +FIELD _user_data, 8, 8 +END_FIELDS + + _JOB_SHA256_size = _FIELD_OFFSET + _JOB_SHA256_align = _STRUCT_ALIGN diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S new file mode 100644 index 000000000..d2364c55b --- /dev/null +++ b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S @@ -0,0 +1,307 @@ +/* + * Flush routine for SHA256 multibuffer + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include <linux/linkage.h> +#include <asm/frame.h> +#include "sha256_mb_mgr_datastruct.S" + +.extern sha256_x8_avx2 + +#LINUX register definitions +#define arg1 %rdi +#define arg2 %rsi + +# Common register definitions +#define state arg1 +#define job arg2 +#define len2 arg2 + +# idx must be a register not clobberred by sha1_mult +#define idx %r8 +#define DWORD_idx %r8d + +#define unused_lanes %rbx +#define lane_data %rbx +#define tmp2 %rbx +#define tmp2_w %ebx + +#define job_rax %rax +#define tmp1 %rax +#define size_offset %rax +#define tmp %rax +#define start_offset %rax + +#define tmp3 %arg1 + +#define extra_blocks %arg2 +#define p %arg2 + +.macro LABEL prefix n +\prefix\n\(): +.endm + +.macro JNE_SKIP i +jne skip_\i +.endm + +.altmacro +.macro SET_OFFSET _offset +offset = \_offset +.endm +.noaltmacro + +# JOB_SHA256* sha256_mb_mgr_flush_avx2(MB_MGR *state) +# arg 1 : rcx : state +ENTRY(sha256_mb_mgr_flush_avx2) + FRAME_BEGIN + push %rbx + + # If bit (32+3) is set, then all lanes are empty + mov _unused_lanes(state), unused_lanes + bt $32+3, unused_lanes + jc return_null + + # find a lane with a non-null job + xor idx, idx + offset = (_ldata + 1 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne one(%rip), idx + offset = (_ldata + 2 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne two(%rip), idx + offset = (_ldata + 3 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne three(%rip), idx + offset = (_ldata + 4 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne four(%rip), idx + offset = (_ldata + 5 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne five(%rip), idx + offset = (_ldata + 6 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne six(%rip), idx + offset = (_ldata + 7 * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne seven(%rip), idx + + # copy idx to empty lanes +copy_lane_data: + offset = (_args + _data_ptr) + mov offset(state,idx,8), tmp + + I = 0 +.rep 8 + offset = (_ldata + I * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) +.altmacro + JNE_SKIP %I + offset = (_args + _data_ptr + 8*I) + mov tmp, offset(state) + offset = (_lens + 4*I) + movl $0xFFFFFFFF, offset(state) +LABEL skip_ %I + I = (I+1) +.noaltmacro +.endr + + # Find min length + vmovdqu _lens+0*16(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 + + vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} + vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F} + vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min val in low dword + + vmovd %xmm2, DWORD_idx + mov idx, len2 + and $0xF, idx + shr $4, len2 + jz len_is_0 + + vpand clear_low_nibble(%rip), %xmm2, %xmm2 + vpshufd $0, %xmm2, %xmm2 + + vpsubd %xmm2, %xmm0, %xmm0 + vpsubd %xmm2, %xmm1, %xmm1 + + vmovdqu %xmm0, _lens+0*16(state) + vmovdqu %xmm1, _lens+1*16(state) + + # "state" and "args" are the same address, arg1 + # len is arg2 + call sha256_x8_avx2 + # state and idx are intact + +len_is_0: + # process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + mov _unused_lanes(state), unused_lanes + shl $4, unused_lanes + or idx, unused_lanes + + mov unused_lanes, _unused_lanes(state) + movl $0xFFFFFFFF, _lens(state,idx,4) + + vmovd _args_digest(state , idx, 4) , %xmm0 + vpinsrd $1, _args_digest+1*32(state, idx, 4), %xmm0, %xmm0 + vpinsrd $2, _args_digest+2*32(state, idx, 4), %xmm0, %xmm0 + vpinsrd $3, _args_digest+3*32(state, idx, 4), %xmm0, %xmm0 + vmovd _args_digest+4*32(state, idx, 4), %xmm1 + vpinsrd $1, _args_digest+5*32(state, idx, 4), %xmm1, %xmm1 + vpinsrd $2, _args_digest+6*32(state, idx, 4), %xmm1, %xmm1 + vpinsrd $3, _args_digest+7*32(state, idx, 4), %xmm1, %xmm1 + + vmovdqu %xmm0, _result_digest(job_rax) + offset = (_result_digest + 1*16) + vmovdqu %xmm1, offset(job_rax) + +return: + pop %rbx + FRAME_END + ret + +return_null: + xor job_rax, job_rax + jmp return +ENDPROC(sha256_mb_mgr_flush_avx2) + +############################################################################## + +.align 16 +ENTRY(sha256_mb_mgr_get_comp_job_avx2) + push %rbx + + ## if bit 32+3 is set, then all lanes are empty + mov _unused_lanes(state), unused_lanes + bt $(32+3), unused_lanes + jc .return_null + + # Find min length + vmovdqu _lens(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 + + vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} + vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F} + vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min val in low dword + + vmovd %xmm2, DWORD_idx + test $~0xF, idx + jnz .return_null + + # process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + mov _unused_lanes(state), unused_lanes + shl $4, unused_lanes + or idx, unused_lanes + mov unused_lanes, _unused_lanes(state) + + movl $0xFFFFFFFF, _lens(state, idx, 4) + + vmovd _args_digest(state, idx, 4), %xmm0 + vpinsrd $1, _args_digest+1*32(state, idx, 4), %xmm0, %xmm0 + vpinsrd $2, _args_digest+2*32(state, idx, 4), %xmm0, %xmm0 + vpinsrd $3, _args_digest+3*32(state, idx, 4), %xmm0, %xmm0 + vmovd _args_digest+4*32(state, idx, 4), %xmm1 + vpinsrd $1, _args_digest+5*32(state, idx, 4), %xmm1, %xmm1 + vpinsrd $2, _args_digest+6*32(state, idx, 4), %xmm1, %xmm1 + vpinsrd $3, _args_digest+7*32(state, idx, 4), %xmm1, %xmm1 + + vmovdqu %xmm0, _result_digest(job_rax) + offset = (_result_digest + 1*16) + vmovdqu %xmm1, offset(job_rax) + + pop %rbx + + ret + +.return_null: + xor job_rax, job_rax + pop %rbx + ret +ENDPROC(sha256_mb_mgr_get_comp_job_avx2) + +.section .rodata.cst16.clear_low_nibble, "aM", @progbits, 16 +.align 16 +clear_low_nibble: +.octa 0x000000000000000000000000FFFFFFF0 + +.section .rodata.cst8, "aM", @progbits, 8 +.align 8 +one: +.quad 1 +two: +.quad 2 +three: +.quad 3 +four: +.quad 4 +five: +.quad 5 +six: +.quad 6 +seven: +.quad 7 diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_mgr_init_avx2.c b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_init_avx2.c new file mode 100644 index 000000000..b0c498371 --- /dev/null +++ b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_init_avx2.c @@ -0,0 +1,65 @@ +/* + * Initialization code for multi buffer SHA256 algorithm for AVX2 + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "sha256_mb_mgr.h" + +void sha256_mb_mgr_init_avx2(struct sha256_mb_mgr *state) +{ + unsigned int j; + + state->unused_lanes = 0xF76543210ULL; + for (j = 0; j < 8; j++) { + state->lens[j] = 0xFFFFFFFF; + state->ldata[j].job_in_lane = NULL; + } +} diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_mgr_submit_avx2.S b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_submit_avx2.S new file mode 100644 index 000000000..b36ae7454 --- /dev/null +++ b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_submit_avx2.S @@ -0,0 +1,214 @@ +/* + * Buffer submit code for multi buffer SHA256 algorithm + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include "sha256_mb_mgr_datastruct.S" + +.extern sha256_x8_avx2 + +# LINUX register definitions +arg1 = %rdi +arg2 = %rsi +size_offset = %rcx +tmp2 = %rcx +extra_blocks = %rdx + +# Common definitions +#define state arg1 +#define job %rsi +#define len2 arg2 +#define p2 arg2 + +# idx must be a register not clobberred by sha1_x8_avx2 +idx = %r8 +DWORD_idx = %r8d +last_len = %r8 + +p = %r11 +start_offset = %r11 + +unused_lanes = %rbx +BYTE_unused_lanes = %bl + +job_rax = %rax +len = %rax +DWORD_len = %eax + +lane = %r12 +tmp3 = %r12 + +tmp = %r9 +DWORD_tmp = %r9d + +lane_data = %r10 + +# JOB* sha256_mb_mgr_submit_avx2(MB_MGR *state, JOB_SHA256 *job) +# arg 1 : rcx : state +# arg 2 : rdx : job +ENTRY(sha256_mb_mgr_submit_avx2) + FRAME_BEGIN + push %rbx + push %r12 + + mov _unused_lanes(state), unused_lanes + mov unused_lanes, lane + and $0xF, lane + shr $4, unused_lanes + imul $_LANE_DATA_size, lane, lane_data + movl $STS_BEING_PROCESSED, _status(job) + lea _ldata(state, lane_data), lane_data + mov unused_lanes, _unused_lanes(state) + movl _len(job), DWORD_len + + mov job, _job_in_lane(lane_data) + shl $4, len + or lane, len + + movl DWORD_len, _lens(state , lane, 4) + + # Load digest words from result_digest + vmovdqu _result_digest(job), %xmm0 + vmovdqu _result_digest+1*16(job), %xmm1 + vmovd %xmm0, _args_digest(state, lane, 4) + vpextrd $1, %xmm0, _args_digest+1*32(state , lane, 4) + vpextrd $2, %xmm0, _args_digest+2*32(state , lane, 4) + vpextrd $3, %xmm0, _args_digest+3*32(state , lane, 4) + vmovd %xmm1, _args_digest+4*32(state , lane, 4) + + vpextrd $1, %xmm1, _args_digest+5*32(state , lane, 4) + vpextrd $2, %xmm1, _args_digest+6*32(state , lane, 4) + vpextrd $3, %xmm1, _args_digest+7*32(state , lane, 4) + + mov _buffer(job), p + mov p, _args_data_ptr(state, lane, 8) + + cmp $0xF, unused_lanes + jne return_null + +start_loop: + # Find min length + vmovdqa _lens(state), %xmm0 + vmovdqa _lens+1*16(state), %xmm1 + + vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} + vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F} + vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E} + vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min val in low dword + + vmovd %xmm2, DWORD_idx + mov idx, len2 + and $0xF, idx + shr $4, len2 + jz len_is_0 + + vpand clear_low_nibble(%rip), %xmm2, %xmm2 + vpshufd $0, %xmm2, %xmm2 + + vpsubd %xmm2, %xmm0, %xmm0 + vpsubd %xmm2, %xmm1, %xmm1 + + vmovdqa %xmm0, _lens + 0*16(state) + vmovdqa %xmm1, _lens + 1*16(state) + + # "state" and "args" are the same address, arg1 + # len is arg2 + call sha256_x8_avx2 + + # state and idx are intact + +len_is_0: + # process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + mov _unused_lanes(state), unused_lanes + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + shl $4, unused_lanes + or idx, unused_lanes + mov unused_lanes, _unused_lanes(state) + + movl $0xFFFFFFFF, _lens(state,idx,4) + + vmovd _args_digest(state, idx, 4), %xmm0 + vpinsrd $1, _args_digest+1*32(state , idx, 4), %xmm0, %xmm0 + vpinsrd $2, _args_digest+2*32(state , idx, 4), %xmm0, %xmm0 + vpinsrd $3, _args_digest+3*32(state , idx, 4), %xmm0, %xmm0 + vmovd _args_digest+4*32(state, idx, 4), %xmm1 + + vpinsrd $1, _args_digest+5*32(state , idx, 4), %xmm1, %xmm1 + vpinsrd $2, _args_digest+6*32(state , idx, 4), %xmm1, %xmm1 + vpinsrd $3, _args_digest+7*32(state , idx, 4), %xmm1, %xmm1 + + vmovdqu %xmm0, _result_digest(job_rax) + vmovdqu %xmm1, _result_digest+1*16(job_rax) + +return: + pop %r12 + pop %rbx + FRAME_END + ret + +return_null: + xor job_rax, job_rax + jmp return + +ENDPROC(sha256_mb_mgr_submit_avx2) + +.section .rodata.cst16.clear_low_nibble, "aM", @progbits, 16 +.align 16 +clear_low_nibble: + .octa 0x000000000000000000000000FFFFFFF0 diff --git a/arch/x86/crypto/sha256-mb/sha256_x8_avx2.S b/arch/x86/crypto/sha256-mb/sha256_x8_avx2.S new file mode 100644 index 000000000..1687c80c5 --- /dev/null +++ b/arch/x86/crypto/sha256-mb/sha256_x8_avx2.S @@ -0,0 +1,598 @@ +/* + * Multi-buffer SHA256 algorithm hash compute routine + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/linkage.h> +#include "sha256_mb_mgr_datastruct.S" + +## code to compute oct SHA256 using SSE-256 +## outer calling routine takes care of save and restore of XMM registers +## Logic designed/laid out by JDG + +## Function clobbers: rax, rcx, rdx, rbx, rsi, rdi, r9-r15; %ymm0-15 +## Linux clobbers: rax rbx rcx rdx rsi r9 r10 r11 r12 r13 r14 r15 +## Linux preserves: rdi rbp r8 +## +## clobbers %ymm0-15 + +arg1 = %rdi +arg2 = %rsi +reg3 = %rcx +reg4 = %rdx + +# Common definitions +STATE = arg1 +INP_SIZE = arg2 + +IDX = %rax +ROUND = %rbx +TBL = reg3 + +inp0 = %r9 +inp1 = %r10 +inp2 = %r11 +inp3 = %r12 +inp4 = %r13 +inp5 = %r14 +inp6 = %r15 +inp7 = reg4 + +a = %ymm0 +b = %ymm1 +c = %ymm2 +d = %ymm3 +e = %ymm4 +f = %ymm5 +g = %ymm6 +h = %ymm7 + +T1 = %ymm8 + +a0 = %ymm12 +a1 = %ymm13 +a2 = %ymm14 +TMP = %ymm15 +TMP0 = %ymm6 +TMP1 = %ymm7 + +TT0 = %ymm8 +TT1 = %ymm9 +TT2 = %ymm10 +TT3 = %ymm11 +TT4 = %ymm12 +TT5 = %ymm13 +TT6 = %ymm14 +TT7 = %ymm15 + +# Define stack usage + +# Assume stack aligned to 32 bytes before call +# Therefore FRAMESZ mod 32 must be 32-8 = 24 + +#define FRAMESZ 0x388 + +#define VMOVPS vmovups + +# TRANSPOSE8 r0, r1, r2, r3, r4, r5, r6, r7, t0, t1 +# "transpose" data in {r0...r7} using temps {t0...t1} +# Input looks like: {r0 r1 r2 r3 r4 r5 r6 r7} +# r0 = {a7 a6 a5 a4 a3 a2 a1 a0} +# r1 = {b7 b6 b5 b4 b3 b2 b1 b0} +# r2 = {c7 c6 c5 c4 c3 c2 c1 c0} +# r3 = {d7 d6 d5 d4 d3 d2 d1 d0} +# r4 = {e7 e6 e5 e4 e3 e2 e1 e0} +# r5 = {f7 f6 f5 f4 f3 f2 f1 f0} +# r6 = {g7 g6 g5 g4 g3 g2 g1 g0} +# r7 = {h7 h6 h5 h4 h3 h2 h1 h0} +# +# Output looks like: {r0 r1 r2 r3 r4 r5 r6 r7} +# r0 = {h0 g0 f0 e0 d0 c0 b0 a0} +# r1 = {h1 g1 f1 e1 d1 c1 b1 a1} +# r2 = {h2 g2 f2 e2 d2 c2 b2 a2} +# r3 = {h3 g3 f3 e3 d3 c3 b3 a3} +# r4 = {h4 g4 f4 e4 d4 c4 b4 a4} +# r5 = {h5 g5 f5 e5 d5 c5 b5 a5} +# r6 = {h6 g6 f6 e6 d6 c6 b6 a6} +# r7 = {h7 g7 f7 e7 d7 c7 b7 a7} +# + +.macro TRANSPOSE8 r0 r1 r2 r3 r4 r5 r6 r7 t0 t1 + # process top half (r0..r3) {a...d} + vshufps $0x44, \r1, \r0, \t0 # t0 = {b5 b4 a5 a4 b1 b0 a1 a0} + vshufps $0xEE, \r1, \r0, \r0 # r0 = {b7 b6 a7 a6 b3 b2 a3 a2} + vshufps $0x44, \r3, \r2, \t1 # t1 = {d5 d4 c5 c4 d1 d0 c1 c0} + vshufps $0xEE, \r3, \r2, \r2 # r2 = {d7 d6 c7 c6 d3 d2 c3 c2} + vshufps $0xDD, \t1, \t0, \r3 # r3 = {d5 c5 b5 a5 d1 c1 b1 a1} + vshufps $0x88, \r2, \r0, \r1 # r1 = {d6 c6 b6 a6 d2 c2 b2 a2} + vshufps $0xDD, \r2, \r0, \r0 # r0 = {d7 c7 b7 a7 d3 c3 b3 a3} + vshufps $0x88, \t1, \t0, \t0 # t0 = {d4 c4 b4 a4 d0 c0 b0 a0} + + # use r2 in place of t0 + # process bottom half (r4..r7) {e...h} + vshufps $0x44, \r5, \r4, \r2 # r2 = {f5 f4 e5 e4 f1 f0 e1 e0} + vshufps $0xEE, \r5, \r4, \r4 # r4 = {f7 f6 e7 e6 f3 f2 e3 e2} + vshufps $0x44, \r7, \r6, \t1 # t1 = {h5 h4 g5 g4 h1 h0 g1 g0} + vshufps $0xEE, \r7, \r6, \r6 # r6 = {h7 h6 g7 g6 h3 h2 g3 g2} + vshufps $0xDD, \t1, \r2, \r7 # r7 = {h5 g5 f5 e5 h1 g1 f1 e1} + vshufps $0x88, \r6, \r4, \r5 # r5 = {h6 g6 f6 e6 h2 g2 f2 e2} + vshufps $0xDD, \r6, \r4, \r4 # r4 = {h7 g7 f7 e7 h3 g3 f3 e3} + vshufps $0x88, \t1, \r2, \t1 # t1 = {h4 g4 f4 e4 h0 g0 f0 e0} + + vperm2f128 $0x13, \r1, \r5, \r6 # h6...a6 + vperm2f128 $0x02, \r1, \r5, \r2 # h2...a2 + vperm2f128 $0x13, \r3, \r7, \r5 # h5...a5 + vperm2f128 $0x02, \r3, \r7, \r1 # h1...a1 + vperm2f128 $0x13, \r0, \r4, \r7 # h7...a7 + vperm2f128 $0x02, \r0, \r4, \r3 # h3...a3 + vperm2f128 $0x13, \t0, \t1, \r4 # h4...a4 + vperm2f128 $0x02, \t0, \t1, \r0 # h0...a0 + +.endm + +.macro ROTATE_ARGS +TMP_ = h +h = g +g = f +f = e +e = d +d = c +c = b +b = a +a = TMP_ +.endm + +.macro _PRORD reg imm tmp + vpslld $(32-\imm),\reg,\tmp + vpsrld $\imm,\reg, \reg + vpor \tmp,\reg, \reg +.endm + +# PRORD_nd reg, imm, tmp, src +.macro _PRORD_nd reg imm tmp src + vpslld $(32-\imm), \src, \tmp + vpsrld $\imm, \src, \reg + vpor \tmp, \reg, \reg +.endm + +# PRORD dst/src, amt +.macro PRORD reg imm + _PRORD \reg,\imm,TMP +.endm + +# PRORD_nd dst, src, amt +.macro PRORD_nd reg tmp imm + _PRORD_nd \reg, \imm, TMP, \tmp +.endm + +# arguments passed implicitly in preprocessor symbols i, a...h +.macro ROUND_00_15 _T1 i + PRORD_nd a0,e,5 # sig1: a0 = (e >> 5) + + vpxor g, f, a2 # ch: a2 = f^g + vpand e,a2, a2 # ch: a2 = (f^g)&e + vpxor g, a2, a2 # a2 = ch + + PRORD_nd a1,e,25 # sig1: a1 = (e >> 25) + + vmovdqu \_T1,(SZ8*(\i & 0xf))(%rsp) + vpaddd (TBL,ROUND,1), \_T1, \_T1 # T1 = W + K + vpxor e,a0, a0 # sig1: a0 = e ^ (e >> 5) + PRORD a0, 6 # sig1: a0 = (e >> 6) ^ (e >> 11) + vpaddd a2, h, h # h = h + ch + PRORD_nd a2,a,11 # sig0: a2 = (a >> 11) + vpaddd \_T1,h, h # h = h + ch + W + K + vpxor a1, a0, a0 # a0 = sigma1 + PRORD_nd a1,a,22 # sig0: a1 = (a >> 22) + vpxor c, a, \_T1 # maj: T1 = a^c + add $SZ8, ROUND # ROUND++ + vpand b, \_T1, \_T1 # maj: T1 = (a^c)&b + vpaddd a0, h, h + vpaddd h, d, d + vpxor a, a2, a2 # sig0: a2 = a ^ (a >> 11) + PRORD a2,2 # sig0: a2 = (a >> 2) ^ (a >> 13) + vpxor a1, a2, a2 # a2 = sig0 + vpand c, a, a1 # maj: a1 = a&c + vpor \_T1, a1, a1 # a1 = maj + vpaddd a1, h, h # h = h + ch + W + K + maj + vpaddd a2, h, h # h = h + ch + W + K + maj + sigma0 + ROTATE_ARGS +.endm + +# arguments passed implicitly in preprocessor symbols i, a...h +.macro ROUND_16_XX _T1 i + vmovdqu (SZ8*((\i-15)&0xf))(%rsp), \_T1 + vmovdqu (SZ8*((\i-2)&0xf))(%rsp), a1 + vmovdqu \_T1, a0 + PRORD \_T1,11 + vmovdqu a1, a2 + PRORD a1,2 + vpxor a0, \_T1, \_T1 + PRORD \_T1, 7 + vpxor a2, a1, a1 + PRORD a1, 17 + vpsrld $3, a0, a0 + vpxor a0, \_T1, \_T1 + vpsrld $10, a2, a2 + vpxor a2, a1, a1 + vpaddd (SZ8*((\i-16)&0xf))(%rsp), \_T1, \_T1 + vpaddd (SZ8*((\i-7)&0xf))(%rsp), a1, a1 + vpaddd a1, \_T1, \_T1 + + ROUND_00_15 \_T1,\i +.endm + +# SHA256_ARGS: +# UINT128 digest[8]; // transposed digests +# UINT8 *data_ptr[4]; + +# void sha256_x8_avx2(SHA256_ARGS *args, UINT64 bytes); +# arg 1 : STATE : pointer to array of pointers to input data +# arg 2 : INP_SIZE : size of input in blocks + # general registers preserved in outer calling routine + # outer calling routine saves all the XMM registers + # save rsp, allocate 32-byte aligned for local variables +ENTRY(sha256_x8_avx2) + + # save callee-saved clobbered registers to comply with C function ABI + push %r12 + push %r13 + push %r14 + push %r15 + + mov %rsp, IDX + sub $FRAMESZ, %rsp + and $~0x1F, %rsp + mov IDX, _rsp(%rsp) + + # Load the pre-transposed incoming digest. + vmovdqu 0*SHA256_DIGEST_ROW_SIZE(STATE),a + vmovdqu 1*SHA256_DIGEST_ROW_SIZE(STATE),b + vmovdqu 2*SHA256_DIGEST_ROW_SIZE(STATE),c + vmovdqu 3*SHA256_DIGEST_ROW_SIZE(STATE),d + vmovdqu 4*SHA256_DIGEST_ROW_SIZE(STATE),e + vmovdqu 5*SHA256_DIGEST_ROW_SIZE(STATE),f + vmovdqu 6*SHA256_DIGEST_ROW_SIZE(STATE),g + vmovdqu 7*SHA256_DIGEST_ROW_SIZE(STATE),h + + lea K256_8(%rip),TBL + + # load the address of each of the 4 message lanes + # getting ready to transpose input onto stack + mov _args_data_ptr+0*PTR_SZ(STATE),inp0 + mov _args_data_ptr+1*PTR_SZ(STATE),inp1 + mov _args_data_ptr+2*PTR_SZ(STATE),inp2 + mov _args_data_ptr+3*PTR_SZ(STATE),inp3 + mov _args_data_ptr+4*PTR_SZ(STATE),inp4 + mov _args_data_ptr+5*PTR_SZ(STATE),inp5 + mov _args_data_ptr+6*PTR_SZ(STATE),inp6 + mov _args_data_ptr+7*PTR_SZ(STATE),inp7 + + xor IDX, IDX +lloop: + xor ROUND, ROUND + + # save old digest + vmovdqu a, _digest(%rsp) + vmovdqu b, _digest+1*SZ8(%rsp) + vmovdqu c, _digest+2*SZ8(%rsp) + vmovdqu d, _digest+3*SZ8(%rsp) + vmovdqu e, _digest+4*SZ8(%rsp) + vmovdqu f, _digest+5*SZ8(%rsp) + vmovdqu g, _digest+6*SZ8(%rsp) + vmovdqu h, _digest+7*SZ8(%rsp) + i = 0 +.rep 2 + VMOVPS i*32(inp0, IDX), TT0 + VMOVPS i*32(inp1, IDX), TT1 + VMOVPS i*32(inp2, IDX), TT2 + VMOVPS i*32(inp3, IDX), TT3 + VMOVPS i*32(inp4, IDX), TT4 + VMOVPS i*32(inp5, IDX), TT5 + VMOVPS i*32(inp6, IDX), TT6 + VMOVPS i*32(inp7, IDX), TT7 + vmovdqu g, _ytmp(%rsp) + vmovdqu h, _ytmp+1*SZ8(%rsp) + TRANSPOSE8 TT0, TT1, TT2, TT3, TT4, TT5, TT6, TT7, TMP0, TMP1 + vmovdqu PSHUFFLE_BYTE_FLIP_MASK(%rip), TMP1 + vmovdqu _ytmp(%rsp), g + vpshufb TMP1, TT0, TT0 + vpshufb TMP1, TT1, TT1 + vpshufb TMP1, TT2, TT2 + vpshufb TMP1, TT3, TT3 + vpshufb TMP1, TT4, TT4 + vpshufb TMP1, TT5, TT5 + vpshufb TMP1, TT6, TT6 + vpshufb TMP1, TT7, TT7 + vmovdqu _ytmp+1*SZ8(%rsp), h + vmovdqu TT4, _ytmp(%rsp) + vmovdqu TT5, _ytmp+1*SZ8(%rsp) + vmovdqu TT6, _ytmp+2*SZ8(%rsp) + vmovdqu TT7, _ytmp+3*SZ8(%rsp) + ROUND_00_15 TT0,(i*8+0) + vmovdqu _ytmp(%rsp), TT0 + ROUND_00_15 TT1,(i*8+1) + vmovdqu _ytmp+1*SZ8(%rsp), TT1 + ROUND_00_15 TT2,(i*8+2) + vmovdqu _ytmp+2*SZ8(%rsp), TT2 + ROUND_00_15 TT3,(i*8+3) + vmovdqu _ytmp+3*SZ8(%rsp), TT3 + ROUND_00_15 TT0,(i*8+4) + ROUND_00_15 TT1,(i*8+5) + ROUND_00_15 TT2,(i*8+6) + ROUND_00_15 TT3,(i*8+7) + i = (i+1) +.endr + add $64, IDX + i = (i*8) + + jmp Lrounds_16_xx +.align 16 +Lrounds_16_xx: +.rep 16 + ROUND_16_XX T1, i + i = (i+1) +.endr + + cmp $ROUNDS,ROUND + jb Lrounds_16_xx + + # add old digest + vpaddd _digest+0*SZ8(%rsp), a, a + vpaddd _digest+1*SZ8(%rsp), b, b + vpaddd _digest+2*SZ8(%rsp), c, c + vpaddd _digest+3*SZ8(%rsp), d, d + vpaddd _digest+4*SZ8(%rsp), e, e + vpaddd _digest+5*SZ8(%rsp), f, f + vpaddd _digest+6*SZ8(%rsp), g, g + vpaddd _digest+7*SZ8(%rsp), h, h + + sub $1, INP_SIZE # unit is blocks + jne lloop + + # write back to memory (state object) the transposed digest + vmovdqu a, 0*SHA256_DIGEST_ROW_SIZE(STATE) + vmovdqu b, 1*SHA256_DIGEST_ROW_SIZE(STATE) + vmovdqu c, 2*SHA256_DIGEST_ROW_SIZE(STATE) + vmovdqu d, 3*SHA256_DIGEST_ROW_SIZE(STATE) + vmovdqu e, 4*SHA256_DIGEST_ROW_SIZE(STATE) + vmovdqu f, 5*SHA256_DIGEST_ROW_SIZE(STATE) + vmovdqu g, 6*SHA256_DIGEST_ROW_SIZE(STATE) + vmovdqu h, 7*SHA256_DIGEST_ROW_SIZE(STATE) + + # update input pointers + add IDX, inp0 + mov inp0, _args_data_ptr+0*8(STATE) + add IDX, inp1 + mov inp1, _args_data_ptr+1*8(STATE) + add IDX, inp2 + mov inp2, _args_data_ptr+2*8(STATE) + add IDX, inp3 + mov inp3, _args_data_ptr+3*8(STATE) + add IDX, inp4 + mov inp4, _args_data_ptr+4*8(STATE) + add IDX, inp5 + mov inp5, _args_data_ptr+5*8(STATE) + add IDX, inp6 + mov inp6, _args_data_ptr+6*8(STATE) + add IDX, inp7 + mov inp7, _args_data_ptr+7*8(STATE) + + # Postamble + mov _rsp(%rsp), %rsp + + # restore callee-saved clobbered registers + pop %r15 + pop %r14 + pop %r13 + pop %r12 + + ret +ENDPROC(sha256_x8_avx2) + +.section .rodata.K256_8, "a", @progbits +.align 64 +K256_8: + .octa 0x428a2f98428a2f98428a2f98428a2f98 + .octa 0x428a2f98428a2f98428a2f98428a2f98 + .octa 0x71374491713744917137449171374491 + .octa 0x71374491713744917137449171374491 + .octa 0xb5c0fbcfb5c0fbcfb5c0fbcfb5c0fbcf + .octa 0xb5c0fbcfb5c0fbcfb5c0fbcfb5c0fbcf + .octa 0xe9b5dba5e9b5dba5e9b5dba5e9b5dba5 + .octa 0xe9b5dba5e9b5dba5e9b5dba5e9b5dba5 + .octa 0x3956c25b3956c25b3956c25b3956c25b + .octa 0x3956c25b3956c25b3956c25b3956c25b + .octa 0x59f111f159f111f159f111f159f111f1 + .octa 0x59f111f159f111f159f111f159f111f1 + .octa 0x923f82a4923f82a4923f82a4923f82a4 + .octa 0x923f82a4923f82a4923f82a4923f82a4 + .octa 0xab1c5ed5ab1c5ed5ab1c5ed5ab1c5ed5 + .octa 0xab1c5ed5ab1c5ed5ab1c5ed5ab1c5ed5 + .octa 0xd807aa98d807aa98d807aa98d807aa98 + .octa 0xd807aa98d807aa98d807aa98d807aa98 + .octa 0x12835b0112835b0112835b0112835b01 + .octa 0x12835b0112835b0112835b0112835b01 + .octa 0x243185be243185be243185be243185be + .octa 0x243185be243185be243185be243185be + .octa 0x550c7dc3550c7dc3550c7dc3550c7dc3 + .octa 0x550c7dc3550c7dc3550c7dc3550c7dc3 + .octa 0x72be5d7472be5d7472be5d7472be5d74 + .octa 0x72be5d7472be5d7472be5d7472be5d74 + .octa 0x80deb1fe80deb1fe80deb1fe80deb1fe + .octa 0x80deb1fe80deb1fe80deb1fe80deb1fe + .octa 0x9bdc06a79bdc06a79bdc06a79bdc06a7 + .octa 0x9bdc06a79bdc06a79bdc06a79bdc06a7 + .octa 0xc19bf174c19bf174c19bf174c19bf174 + .octa 0xc19bf174c19bf174c19bf174c19bf174 + .octa 0xe49b69c1e49b69c1e49b69c1e49b69c1 + .octa 0xe49b69c1e49b69c1e49b69c1e49b69c1 + .octa 0xefbe4786efbe4786efbe4786efbe4786 + .octa 0xefbe4786efbe4786efbe4786efbe4786 + .octa 0x0fc19dc60fc19dc60fc19dc60fc19dc6 + .octa 0x0fc19dc60fc19dc60fc19dc60fc19dc6 + .octa 0x240ca1cc240ca1cc240ca1cc240ca1cc + .octa 0x240ca1cc240ca1cc240ca1cc240ca1cc + .octa 0x2de92c6f2de92c6f2de92c6f2de92c6f + .octa 0x2de92c6f2de92c6f2de92c6f2de92c6f + .octa 0x4a7484aa4a7484aa4a7484aa4a7484aa + .octa 0x4a7484aa4a7484aa4a7484aa4a7484aa + .octa 0x5cb0a9dc5cb0a9dc5cb0a9dc5cb0a9dc + .octa 0x5cb0a9dc5cb0a9dc5cb0a9dc5cb0a9dc + .octa 0x76f988da76f988da76f988da76f988da + .octa 0x76f988da76f988da76f988da76f988da + .octa 0x983e5152983e5152983e5152983e5152 + .octa 0x983e5152983e5152983e5152983e5152 + .octa 0xa831c66da831c66da831c66da831c66d + .octa 0xa831c66da831c66da831c66da831c66d + .octa 0xb00327c8b00327c8b00327c8b00327c8 + .octa 0xb00327c8b00327c8b00327c8b00327c8 + .octa 0xbf597fc7bf597fc7bf597fc7bf597fc7 + .octa 0xbf597fc7bf597fc7bf597fc7bf597fc7 + .octa 0xc6e00bf3c6e00bf3c6e00bf3c6e00bf3 + .octa 0xc6e00bf3c6e00bf3c6e00bf3c6e00bf3 + .octa 0xd5a79147d5a79147d5a79147d5a79147 + .octa 0xd5a79147d5a79147d5a79147d5a79147 + .octa 0x06ca635106ca635106ca635106ca6351 + .octa 0x06ca635106ca635106ca635106ca6351 + .octa 0x14292967142929671429296714292967 + .octa 0x14292967142929671429296714292967 + .octa 0x27b70a8527b70a8527b70a8527b70a85 + .octa 0x27b70a8527b70a8527b70a8527b70a85 + .octa 0x2e1b21382e1b21382e1b21382e1b2138 + .octa 0x2e1b21382e1b21382e1b21382e1b2138 + .octa 0x4d2c6dfc4d2c6dfc4d2c6dfc4d2c6dfc + .octa 0x4d2c6dfc4d2c6dfc4d2c6dfc4d2c6dfc + .octa 0x53380d1353380d1353380d1353380d13 + .octa 0x53380d1353380d1353380d1353380d13 + .octa 0x650a7354650a7354650a7354650a7354 + .octa 0x650a7354650a7354650a7354650a7354 + .octa 0x766a0abb766a0abb766a0abb766a0abb + .octa 0x766a0abb766a0abb766a0abb766a0abb + .octa 0x81c2c92e81c2c92e81c2c92e81c2c92e + .octa 0x81c2c92e81c2c92e81c2c92e81c2c92e + .octa 0x92722c8592722c8592722c8592722c85 + .octa 0x92722c8592722c8592722c8592722c85 + .octa 0xa2bfe8a1a2bfe8a1a2bfe8a1a2bfe8a1 + .octa 0xa2bfe8a1a2bfe8a1a2bfe8a1a2bfe8a1 + .octa 0xa81a664ba81a664ba81a664ba81a664b + .octa 0xa81a664ba81a664ba81a664ba81a664b + .octa 0xc24b8b70c24b8b70c24b8b70c24b8b70 + .octa 0xc24b8b70c24b8b70c24b8b70c24b8b70 + .octa 0xc76c51a3c76c51a3c76c51a3c76c51a3 + .octa 0xc76c51a3c76c51a3c76c51a3c76c51a3 + .octa 0xd192e819d192e819d192e819d192e819 + .octa 0xd192e819d192e819d192e819d192e819 + .octa 0xd6990624d6990624d6990624d6990624 + .octa 0xd6990624d6990624d6990624d6990624 + .octa 0xf40e3585f40e3585f40e3585f40e3585 + .octa 0xf40e3585f40e3585f40e3585f40e3585 + .octa 0x106aa070106aa070106aa070106aa070 + .octa 0x106aa070106aa070106aa070106aa070 + .octa 0x19a4c11619a4c11619a4c11619a4c116 + .octa 0x19a4c11619a4c11619a4c11619a4c116 + .octa 0x1e376c081e376c081e376c081e376c08 + .octa 0x1e376c081e376c081e376c081e376c08 + .octa 0x2748774c2748774c2748774c2748774c + .octa 0x2748774c2748774c2748774c2748774c + .octa 0x34b0bcb534b0bcb534b0bcb534b0bcb5 + .octa 0x34b0bcb534b0bcb534b0bcb534b0bcb5 + .octa 0x391c0cb3391c0cb3391c0cb3391c0cb3 + .octa 0x391c0cb3391c0cb3391c0cb3391c0cb3 + .octa 0x4ed8aa4a4ed8aa4a4ed8aa4a4ed8aa4a + .octa 0x4ed8aa4a4ed8aa4a4ed8aa4a4ed8aa4a + .octa 0x5b9cca4f5b9cca4f5b9cca4f5b9cca4f + .octa 0x5b9cca4f5b9cca4f5b9cca4f5b9cca4f + .octa 0x682e6ff3682e6ff3682e6ff3682e6ff3 + .octa 0x682e6ff3682e6ff3682e6ff3682e6ff3 + .octa 0x748f82ee748f82ee748f82ee748f82ee + .octa 0x748f82ee748f82ee748f82ee748f82ee + .octa 0x78a5636f78a5636f78a5636f78a5636f + .octa 0x78a5636f78a5636f78a5636f78a5636f + .octa 0x84c8781484c8781484c8781484c87814 + .octa 0x84c8781484c8781484c8781484c87814 + .octa 0x8cc702088cc702088cc702088cc70208 + .octa 0x8cc702088cc702088cc702088cc70208 + .octa 0x90befffa90befffa90befffa90befffa + .octa 0x90befffa90befffa90befffa90befffa + .octa 0xa4506ceba4506ceba4506ceba4506ceb + .octa 0xa4506ceba4506ceba4506ceba4506ceb + .octa 0xbef9a3f7bef9a3f7bef9a3f7bef9a3f7 + .octa 0xbef9a3f7bef9a3f7bef9a3f7bef9a3f7 + .octa 0xc67178f2c67178f2c67178f2c67178f2 + .octa 0xc67178f2c67178f2c67178f2c67178f2 + +.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32 +.align 32 +PSHUFFLE_BYTE_FLIP_MASK: +.octa 0x0c0d0e0f08090a0b0405060700010203 +.octa 0x0c0d0e0f08090a0b0405060700010203 + +.section .rodata.cst256.K256, "aM", @progbits, 256 +.align 64 +.global K256 +K256: + .int 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .int 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .int 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .int 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .int 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .int 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .int 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .int 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .int 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .int 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .int 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .int 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .int 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .int 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .int 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .int 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S new file mode 100644 index 000000000..c6c05ed2c --- /dev/null +++ b/arch/x86/crypto/sha256-ssse3-asm.S @@ -0,0 +1,511 @@ +######################################################################## +# Implement fast SHA-256 with SSSE3 instructions. (x86_64) +# +# Copyright (C) 2013 Intel Corporation. +# +# Authors: +# James Guilford <james.guilford@intel.com> +# Kirk Yap <kirk.s.yap@intel.com> +# Tim Chen <tim.c.chen@linux.intel.com> +# +# This software is available to you under a choice of one of two +# licenses. You may choose to be licensed under the terms of the GNU +# General Public License (GPL) Version 2, available from the file +# COPYING in the main directory of this source tree, or the +# OpenIB.org BSD license below: +# +# Redistribution and use in source and binary forms, with or +# without modification, are permitted provided that the following +# conditions are met: +# +# - Redistributions of source code must retain the above +# copyright notice, this list of conditions and the following +# disclaimer. +# +# - Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials +# provided with the distribution. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# +######################################################################## +# +# This code is described in an Intel White-Paper: +# "Fast SHA-256 Implementations on Intel Architecture Processors" +# +# To find it, surf to http://www.intel.com/p/en_US/embedded +# and search for that title. +# +######################################################################## + +#include <linux/linkage.h> + +## assume buffers not aligned +#define MOVDQ movdqu + +################################ Define Macros + +# addm [mem], reg +# Add reg to mem using reg-mem add and store +.macro addm p1 p2 + add \p1, \p2 + mov \p2, \p1 +.endm + +################################ + +# COPY_XMM_AND_BSWAP xmm, [mem], byte_flip_mask +# Load xmm with mem and byte swap each dword +.macro COPY_XMM_AND_BSWAP p1 p2 p3 + MOVDQ \p2, \p1 + pshufb \p3, \p1 +.endm + +################################ + +X0 = %xmm4 +X1 = %xmm5 +X2 = %xmm6 +X3 = %xmm7 + +XTMP0 = %xmm0 +XTMP1 = %xmm1 +XTMP2 = %xmm2 +XTMP3 = %xmm3 +XTMP4 = %xmm8 +XFER = %xmm9 + +SHUF_00BA = %xmm10 # shuffle xBxA -> 00BA +SHUF_DC00 = %xmm11 # shuffle xDxC -> DC00 +BYTE_FLIP_MASK = %xmm12 + +NUM_BLKS = %rdx # 3rd arg +INP = %rsi # 2nd arg +CTX = %rdi # 1st arg + +SRND = %rsi # clobbers INP +c = %ecx +d = %r8d +e = %edx +TBL = %r12 +a = %eax +b = %ebx + +f = %r9d +g = %r10d +h = %r11d + +y0 = %r13d +y1 = %r14d +y2 = %r15d + + + +_INP_END_SIZE = 8 +_INP_SIZE = 8 +_XFER_SIZE = 16 +_XMM_SAVE_SIZE = 0 + +_INP_END = 0 +_INP = _INP_END + _INP_END_SIZE +_XFER = _INP + _INP_SIZE +_XMM_SAVE = _XFER + _XFER_SIZE +STACK_SIZE = _XMM_SAVE + _XMM_SAVE_SIZE + +# rotate_Xs +# Rotate values of symbols X0...X3 +.macro rotate_Xs +X_ = X0 +X0 = X1 +X1 = X2 +X2 = X3 +X3 = X_ +.endm + +# ROTATE_ARGS +# Rotate values of symbols a...h +.macro ROTATE_ARGS +TMP_ = h +h = g +g = f +f = e +e = d +d = c +c = b +b = a +a = TMP_ +.endm + +.macro FOUR_ROUNDS_AND_SCHED + ## compute s0 four at a time and s1 two at a time + ## compute W[-16] + W[-7] 4 at a time + movdqa X3, XTMP0 + mov e, y0 # y0 = e + ror $(25-11), y0 # y0 = e >> (25-11) + mov a, y1 # y1 = a + palignr $4, X2, XTMP0 # XTMP0 = W[-7] + ror $(22-13), y1 # y1 = a >> (22-13) + xor e, y0 # y0 = e ^ (e >> (25-11)) + mov f, y2 # y2 = f + ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + movdqa X1, XTMP1 + xor a, y1 # y1 = a ^ (a >> (22-13) + xor g, y2 # y2 = f^g + paddd X0, XTMP0 # XTMP0 = W[-7] + W[-16] + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + and e, y2 # y2 = (f^g)&e + ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + ## compute s0 + palignr $4, X0, XTMP1 # XTMP1 = W[-15] + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + xor g, y2 # y2 = CH = ((f^g)&e)^g + movdqa XTMP1, XTMP2 # XTMP2 = W[-15] + ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + add y0, y2 # y2 = S1 + CH + add _XFER(%rsp) , y2 # y2 = k + w + S1 + CH + movdqa XTMP1, XTMP3 # XTMP3 = W[-15] + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + pslld $(32-7), XTMP1 # + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + psrld $7, XTMP2 # + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + por XTMP2, XTMP1 # XTMP1 = W[-15] ror 7 + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + # + ROTATE_ARGS # + movdqa XTMP3, XTMP2 # XTMP2 = W[-15] + mov e, y0 # y0 = e + mov a, y1 # y1 = a + movdqa XTMP3, XTMP4 # XTMP4 = W[-15] + ror $(25-11), y0 # y0 = e >> (25-11) + xor e, y0 # y0 = e ^ (e >> (25-11)) + mov f, y2 # y2 = f + ror $(22-13), y1 # y1 = a >> (22-13) + pslld $(32-18), XTMP3 # + xor a, y1 # y1 = a ^ (a >> (22-13) + ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + xor g, y2 # y2 = f^g + psrld $18, XTMP2 # + ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + and e, y2 # y2 = (f^g)&e + ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + pxor XTMP3, XTMP1 + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + xor g, y2 # y2 = CH = ((f^g)&e)^g + psrld $3, XTMP4 # XTMP4 = W[-15] >> 3 + add y0, y2 # y2 = S1 + CH + add (1*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH + ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + pxor XTMP2, XTMP1 # XTMP1 = W[-15] ror 7 ^ W[-15] ror 18 + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + pxor XTMP4, XTMP1 # XTMP1 = s0 + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + ## compute low s1 + pshufd $0b11111010, X3, XTMP2 # XTMP2 = W[-2] {BBAA} + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + paddd XTMP1, XTMP0 # XTMP0 = W[-16] + W[-7] + s0 + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + + ROTATE_ARGS + movdqa XTMP2, XTMP3 # XTMP3 = W[-2] {BBAA} + mov e, y0 # y0 = e + mov a, y1 # y1 = a + ror $(25-11), y0 # y0 = e >> (25-11) + movdqa XTMP2, XTMP4 # XTMP4 = W[-2] {BBAA} + xor e, y0 # y0 = e ^ (e >> (25-11)) + ror $(22-13), y1 # y1 = a >> (22-13) + mov f, y2 # y2 = f + xor a, y1 # y1 = a ^ (a >> (22-13) + ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + psrlq $17, XTMP2 # XTMP2 = W[-2] ror 17 {xBxA} + xor g, y2 # y2 = f^g + psrlq $19, XTMP3 # XTMP3 = W[-2] ror 19 {xBxA} + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + and e, y2 # y2 = (f^g)&e + psrld $10, XTMP4 # XTMP4 = W[-2] >> 10 {BBAA} + ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + xor g, y2 # y2 = CH = ((f^g)&e)^g + ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + pxor XTMP3, XTMP2 + add y0, y2 # y2 = S1 + CH + ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + add (2*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH + pxor XTMP2, XTMP4 # XTMP4 = s1 {xBxA} + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + pshufb SHUF_00BA, XTMP4 # XTMP4 = s1 {00BA} + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + paddd XTMP4, XTMP0 # XTMP0 = {..., ..., W[1], W[0]} + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + ## compute high s1 + pshufd $0b01010000, XTMP0, XTMP2 # XTMP2 = W[-2] {BBAA} + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + # + ROTATE_ARGS # + movdqa XTMP2, XTMP3 # XTMP3 = W[-2] {DDCC} + mov e, y0 # y0 = e + ror $(25-11), y0 # y0 = e >> (25-11) + mov a, y1 # y1 = a + movdqa XTMP2, X0 # X0 = W[-2] {DDCC} + ror $(22-13), y1 # y1 = a >> (22-13) + xor e, y0 # y0 = e ^ (e >> (25-11)) + mov f, y2 # y2 = f + ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + psrlq $17, XTMP2 # XTMP2 = W[-2] ror 17 {xDxC} + xor a, y1 # y1 = a ^ (a >> (22-13) + xor g, y2 # y2 = f^g + psrlq $19, XTMP3 # XTMP3 = W[-2] ror 19 {xDxC} + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25 + and e, y2 # y2 = (f^g)&e + ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + psrld $10, X0 # X0 = W[-2] >> 10 {DDCC} + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22 + ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>2 + xor g, y2 # y2 = CH = ((f^g)&e)^g + pxor XTMP3, XTMP2 # + ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>2 + add y0, y2 # y2 = S1 + CH + add (3*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH + pxor XTMP2, X0 # X0 = s1 {xDxC} + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + pshufb SHUF_DC00, X0 # X0 = s1 {DC00} + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + paddd XTMP0, X0 # X0 = {W[3], W[2], W[1], W[0]} + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + + ROTATE_ARGS + rotate_Xs +.endm + +## input is [rsp + _XFER + %1 * 4] +.macro DO_ROUND round + mov e, y0 # y0 = e + ror $(25-11), y0 # y0 = e >> (25-11) + mov a, y1 # y1 = a + xor e, y0 # y0 = e ^ (e >> (25-11)) + ror $(22-13), y1 # y1 = a >> (22-13) + mov f, y2 # y2 = f + xor a, y1 # y1 = a ^ (a >> (22-13) + ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6)) + xor g, y2 # y2 = f^g + xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) + ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2)) + and e, y2 # y2 = (f^g)&e + xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) + ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) + xor g, y2 # y2 = CH = ((f^g)&e)^g + add y0, y2 # y2 = S1 + CH + ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) + offset = \round * 4 + _XFER + add offset(%rsp), y2 # y2 = k + w + S1 + CH + mov a, y0 # y0 = a + add y2, h # h = h + S1 + CH + k + w + mov a, y2 # y2 = a + or c, y0 # y0 = a|c + add h, d # d = d + h + S1 + CH + k + w + and c, y2 # y2 = a&c + and b, y0 # y0 = (a|c)&b + add y1, h # h = h + S1 + CH + k + w + S0 + or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c) + add y0, h # h = h + S1 + CH + k + w + S0 + MAJ + ROTATE_ARGS +.endm + +######################################################################## +## void sha256_transform_ssse3(void *input_data, UINT32 digest[8], UINT64 num_blks) +## arg 1 : pointer to digest +## arg 2 : pointer to input data +## arg 3 : Num blocks +######################################################################## +.text +ENTRY(sha256_transform_ssse3) +.align 32 + pushq %rbx + pushq %r12 + pushq %r13 + pushq %r14 + pushq %r15 + pushq %rbp + mov %rsp, %rbp + + subq $STACK_SIZE, %rsp + and $~15, %rsp + + shl $6, NUM_BLKS # convert to bytes + jz done_hash + add INP, NUM_BLKS + mov NUM_BLKS, _INP_END(%rsp) # pointer to end of data + + ## load initial digest + mov 4*0(CTX), a + mov 4*1(CTX), b + mov 4*2(CTX), c + mov 4*3(CTX), d + mov 4*4(CTX), e + mov 4*5(CTX), f + mov 4*6(CTX), g + mov 4*7(CTX), h + + movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK + movdqa _SHUF_00BA(%rip), SHUF_00BA + movdqa _SHUF_DC00(%rip), SHUF_DC00 + +loop0: + lea K256(%rip), TBL + + ## byte swap first 16 dwords + COPY_XMM_AND_BSWAP X0, 0*16(INP), BYTE_FLIP_MASK + COPY_XMM_AND_BSWAP X1, 1*16(INP), BYTE_FLIP_MASK + COPY_XMM_AND_BSWAP X2, 2*16(INP), BYTE_FLIP_MASK + COPY_XMM_AND_BSWAP X3, 3*16(INP), BYTE_FLIP_MASK + + mov INP, _INP(%rsp) + + ## schedule 48 input dwords, by doing 3 rounds of 16 each + mov $3, SRND +.align 16 +loop1: + movdqa (TBL), XFER + paddd X0, XFER + movdqa XFER, _XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + movdqa 1*16(TBL), XFER + paddd X0, XFER + movdqa XFER, _XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + movdqa 2*16(TBL), XFER + paddd X0, XFER + movdqa XFER, _XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + movdqa 3*16(TBL), XFER + paddd X0, XFER + movdqa XFER, _XFER(%rsp) + add $4*16, TBL + FOUR_ROUNDS_AND_SCHED + + sub $1, SRND + jne loop1 + + mov $2, SRND +loop2: + paddd (TBL), X0 + movdqa X0, _XFER(%rsp) + DO_ROUND 0 + DO_ROUND 1 + DO_ROUND 2 + DO_ROUND 3 + paddd 1*16(TBL), X1 + movdqa X1, _XFER(%rsp) + add $2*16, TBL + DO_ROUND 0 + DO_ROUND 1 + DO_ROUND 2 + DO_ROUND 3 + + movdqa X2, X0 + movdqa X3, X1 + + sub $1, SRND + jne loop2 + + addm (4*0)(CTX),a + addm (4*1)(CTX),b + addm (4*2)(CTX),c + addm (4*3)(CTX),d + addm (4*4)(CTX),e + addm (4*5)(CTX),f + addm (4*6)(CTX),g + addm (4*7)(CTX),h + + mov _INP(%rsp), INP + add $64, INP + cmp _INP_END(%rsp), INP + jne loop0 + +done_hash: + + mov %rbp, %rsp + popq %rbp + popq %r15 + popq %r14 + popq %r13 + popq %r12 + popq %rbx + + ret +ENDPROC(sha256_transform_ssse3) + +.section .rodata.cst256.K256, "aM", @progbits, 256 +.align 64 +K256: + .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 + +.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16 +.align 16 +PSHUFFLE_BYTE_FLIP_MASK: + .octa 0x0c0d0e0f08090a0b0405060700010203 + +.section .rodata.cst16._SHUF_00BA, "aM", @progbits, 16 +.align 16 +# shuffle xBxA -> 00BA +_SHUF_00BA: + .octa 0xFFFFFFFFFFFFFFFF0b0a090803020100 + +.section .rodata.cst16._SHUF_DC00, "aM", @progbits, 16 +.align 16 +# shuffle xDxC -> DC00 +_SHUF_DC00: + .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF diff --git a/arch/x86/crypto/sha256_ni_asm.S b/arch/x86/crypto/sha256_ni_asm.S new file mode 100644 index 000000000..fb58f58ec --- /dev/null +++ b/arch/x86/crypto/sha256_ni_asm.S @@ -0,0 +1,355 @@ +/* + * Intel SHA Extensions optimized implementation of a SHA-256 update function + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Sean Gulley <sean.m.gulley@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <linux/linkage.h> + +#define DIGEST_PTR %rdi /* 1st arg */ +#define DATA_PTR %rsi /* 2nd arg */ +#define NUM_BLKS %rdx /* 3rd arg */ + +#define SHA256CONSTANTS %rax + +#define MSG %xmm0 +#define STATE0 %xmm1 +#define STATE1 %xmm2 +#define MSGTMP0 %xmm3 +#define MSGTMP1 %xmm4 +#define MSGTMP2 %xmm5 +#define MSGTMP3 %xmm6 +#define MSGTMP4 %xmm7 + +#define SHUF_MASK %xmm8 + +#define ABEF_SAVE %xmm9 +#define CDGH_SAVE %xmm10 + +/* + * Intel SHA Extensions optimized implementation of a SHA-256 update function + * + * The function takes a pointer to the current hash values, a pointer to the + * input data, and a number of 64 byte blocks to process. Once all blocks have + * been processed, the digest pointer is updated with the resulting hash value. + * The function only processes complete blocks, there is no functionality to + * store partial blocks. All message padding and hash value initialization must + * be done outside the update function. + * + * The indented lines in the loop are instructions related to rounds processing. + * The non-indented lines are instructions related to the message schedule. + * + * void sha256_ni_transform(uint32_t *digest, const void *data, + uint32_t numBlocks); + * digest : pointer to digest + * data: pointer to input data + * numBlocks: Number of blocks to process + */ + +.text +.align 32 +ENTRY(sha256_ni_transform) + + shl $6, NUM_BLKS /* convert to bytes */ + jz .Ldone_hash + add DATA_PTR, NUM_BLKS /* pointer to end of data */ + + /* + * load initial hash values + * Need to reorder these appropriately + * DCBA, HGFE -> ABEF, CDGH + */ + movdqu 0*16(DIGEST_PTR), STATE0 + movdqu 1*16(DIGEST_PTR), STATE1 + + pshufd $0xB1, STATE0, STATE0 /* CDAB */ + pshufd $0x1B, STATE1, STATE1 /* EFGH */ + movdqa STATE0, MSGTMP4 + palignr $8, STATE1, STATE0 /* ABEF */ + pblendw $0xF0, MSGTMP4, STATE1 /* CDGH */ + + movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK + lea K256(%rip), SHA256CONSTANTS + +.Lloop0: + /* Save hash values for addition after rounds */ + movdqa STATE0, ABEF_SAVE + movdqa STATE1, CDGH_SAVE + + /* Rounds 0-3 */ + movdqu 0*16(DATA_PTR), MSG + pshufb SHUF_MASK, MSG + movdqa MSG, MSGTMP0 + paddd 0*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + + /* Rounds 4-7 */ + movdqu 1*16(DATA_PTR), MSG + pshufb SHUF_MASK, MSG + movdqa MSG, MSGTMP1 + paddd 1*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 8-11 */ + movdqu 2*16(DATA_PTR), MSG + pshufb SHUF_MASK, MSG + movdqa MSG, MSGTMP2 + paddd 2*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 12-15 */ + movdqu 3*16(DATA_PTR), MSG + pshufb SHUF_MASK, MSG + movdqa MSG, MSGTMP3 + paddd 3*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP3, MSGTMP4 + palignr $4, MSGTMP2, MSGTMP4 + paddd MSGTMP4, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 16-19 */ + movdqa MSGTMP0, MSG + paddd 4*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP0, MSGTMP4 + palignr $4, MSGTMP3, MSGTMP4 + paddd MSGTMP4, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 20-23 */ + movdqa MSGTMP1, MSG + paddd 5*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP1, MSGTMP4 + palignr $4, MSGTMP0, MSGTMP4 + paddd MSGTMP4, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 24-27 */ + movdqa MSGTMP2, MSG + paddd 6*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP2, MSGTMP4 + palignr $4, MSGTMP1, MSGTMP4 + paddd MSGTMP4, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 28-31 */ + movdqa MSGTMP3, MSG + paddd 7*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP3, MSGTMP4 + palignr $4, MSGTMP2, MSGTMP4 + paddd MSGTMP4, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 32-35 */ + movdqa MSGTMP0, MSG + paddd 8*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP0, MSGTMP4 + palignr $4, MSGTMP3, MSGTMP4 + paddd MSGTMP4, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 36-39 */ + movdqa MSGTMP1, MSG + paddd 9*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP1, MSGTMP4 + palignr $4, MSGTMP0, MSGTMP4 + paddd MSGTMP4, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 40-43 */ + movdqa MSGTMP2, MSG + paddd 10*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP2, MSGTMP4 + palignr $4, MSGTMP1, MSGTMP4 + paddd MSGTMP4, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 44-47 */ + movdqa MSGTMP3, MSG + paddd 11*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP3, MSGTMP4 + palignr $4, MSGTMP2, MSGTMP4 + paddd MSGTMP4, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 48-51 */ + movdqa MSGTMP0, MSG + paddd 12*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP0, MSGTMP4 + palignr $4, MSGTMP3, MSGTMP4 + paddd MSGTMP4, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 52-55 */ + movdqa MSGTMP1, MSG + paddd 13*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP1, MSGTMP4 + palignr $4, MSGTMP0, MSGTMP4 + paddd MSGTMP4, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + + /* Rounds 56-59 */ + movdqa MSGTMP2, MSG + paddd 14*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP2, MSGTMP4 + palignr $4, MSGTMP1, MSGTMP4 + paddd MSGTMP4, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + + /* Rounds 60-63 */ + movdqa MSGTMP3, MSG + paddd 15*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + + /* Add current hash values with previously saved */ + paddd ABEF_SAVE, STATE0 + paddd CDGH_SAVE, STATE1 + + /* Increment data pointer and loop if more to process */ + add $64, DATA_PTR + cmp NUM_BLKS, DATA_PTR + jne .Lloop0 + + /* Write hash values back in the correct order */ + pshufd $0x1B, STATE0, STATE0 /* FEBA */ + pshufd $0xB1, STATE1, STATE1 /* DCHG */ + movdqa STATE0, MSGTMP4 + pblendw $0xF0, STATE1, STATE0 /* DCBA */ + palignr $8, MSGTMP4, STATE1 /* HGFE */ + + movdqu STATE0, 0*16(DIGEST_PTR) + movdqu STATE1, 1*16(DIGEST_PTR) + +.Ldone_hash: + + ret +ENDPROC(sha256_ni_transform) + +.section .rodata.cst256.K256, "aM", @progbits, 256 +.align 64 +K256: + .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 + +.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16 +.align 16 +PSHUFFLE_BYTE_FLIP_MASK: + .octa 0x0c0d0e0f08090a0b0405060700010203 diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c new file mode 100644 index 000000000..773a873d2 --- /dev/null +++ b/arch/x86/crypto/sha256_ssse3_glue.c @@ -0,0 +1,432 @@ +/* + * Cryptographic API. + * + * Glue code for the SHA256 Secure Hash Algorithm assembler + * implementation using supplemental SSE3 / AVX / AVX2 instructions. + * + * This file is based on sha256_generic.c + * + * Copyright (C) 2013 Intel Corporation. + * + * Author: + * Tim Chen <tim.c.chen@linux.intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/cryptohash.h> +#include <linux/types.h> +#include <crypto/sha.h> +#include <crypto/sha256_base.h> +#include <asm/fpu/api.h> +#include <linux/string.h> + +asmlinkage void sha256_transform_ssse3(u32 *digest, const char *data, + u64 rounds); +typedef void (sha256_transform_fn)(u32 *digest, const char *data, u64 rounds); + +static int sha256_update(struct shash_desc *desc, const u8 *data, + unsigned int len, sha256_transform_fn *sha256_xform) +{ + struct sha256_state *sctx = shash_desc_ctx(desc); + + if (!irq_fpu_usable() || + (sctx->count % SHA256_BLOCK_SIZE) + len < SHA256_BLOCK_SIZE) + return crypto_sha256_update(desc, data, len); + + /* make sure casting to sha256_block_fn() is safe */ + BUILD_BUG_ON(offsetof(struct sha256_state, state) != 0); + + kernel_fpu_begin(); + sha256_base_do_update(desc, data, len, + (sha256_block_fn *)sha256_xform); + kernel_fpu_end(); + + return 0; +} + +static int sha256_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out, sha256_transform_fn *sha256_xform) +{ + if (!irq_fpu_usable()) + return crypto_sha256_finup(desc, data, len, out); + + kernel_fpu_begin(); + if (len) + sha256_base_do_update(desc, data, len, + (sha256_block_fn *)sha256_xform); + sha256_base_do_finalize(desc, (sha256_block_fn *)sha256_xform); + kernel_fpu_end(); + + return sha256_base_finish(desc, out); +} + +static int sha256_ssse3_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha256_update(desc, data, len, sha256_transform_ssse3); +} + +static int sha256_ssse3_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha256_finup(desc, data, len, out, sha256_transform_ssse3); +} + +/* Add padding and return the message digest. */ +static int sha256_ssse3_final(struct shash_desc *desc, u8 *out) +{ + return sha256_ssse3_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha256_ssse3_algs[] = { { + .digestsize = SHA256_DIGEST_SIZE, + .init = sha256_base_init, + .update = sha256_ssse3_update, + .final = sha256_ssse3_final, + .finup = sha256_ssse3_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha256", + .cra_driver_name = "sha256-ssse3", + .cra_priority = 150, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA224_DIGEST_SIZE, + .init = sha224_base_init, + .update = sha256_ssse3_update, + .final = sha256_ssse3_final, + .finup = sha256_ssse3_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha224", + .cra_driver_name = "sha224-ssse3", + .cra_priority = 150, + .cra_blocksize = SHA224_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static int register_sha256_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + return crypto_register_shashes(sha256_ssse3_algs, + ARRAY_SIZE(sha256_ssse3_algs)); + return 0; +} + +static void unregister_sha256_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + crypto_unregister_shashes(sha256_ssse3_algs, + ARRAY_SIZE(sha256_ssse3_algs)); +} + +#ifdef CONFIG_AS_AVX +asmlinkage void sha256_transform_avx(u32 *digest, const char *data, + u64 rounds); + +static int sha256_avx_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha256_update(desc, data, len, sha256_transform_avx); +} + +static int sha256_avx_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha256_finup(desc, data, len, out, sha256_transform_avx); +} + +static int sha256_avx_final(struct shash_desc *desc, u8 *out) +{ + return sha256_avx_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha256_avx_algs[] = { { + .digestsize = SHA256_DIGEST_SIZE, + .init = sha256_base_init, + .update = sha256_avx_update, + .final = sha256_avx_final, + .finup = sha256_avx_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha256", + .cra_driver_name = "sha256-avx", + .cra_priority = 160, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA224_DIGEST_SIZE, + .init = sha224_base_init, + .update = sha256_avx_update, + .final = sha256_avx_final, + .finup = sha256_avx_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha224", + .cra_driver_name = "sha224-avx", + .cra_priority = 160, + .cra_blocksize = SHA224_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static bool avx_usable(void) +{ + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) { + if (boot_cpu_has(X86_FEATURE_AVX)) + pr_info("AVX detected but unusable.\n"); + return false; + } + + return true; +} + +static int register_sha256_avx(void) +{ + if (avx_usable()) + return crypto_register_shashes(sha256_avx_algs, + ARRAY_SIZE(sha256_avx_algs)); + return 0; +} + +static void unregister_sha256_avx(void) +{ + if (avx_usable()) + crypto_unregister_shashes(sha256_avx_algs, + ARRAY_SIZE(sha256_avx_algs)); +} + +#else +static inline int register_sha256_avx(void) { return 0; } +static inline void unregister_sha256_avx(void) { } +#endif + +#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX) +asmlinkage void sha256_transform_rorx(u32 *digest, const char *data, + u64 rounds); + +static int sha256_avx2_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha256_update(desc, data, len, sha256_transform_rorx); +} + +static int sha256_avx2_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha256_finup(desc, data, len, out, sha256_transform_rorx); +} + +static int sha256_avx2_final(struct shash_desc *desc, u8 *out) +{ + return sha256_avx2_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha256_avx2_algs[] = { { + .digestsize = SHA256_DIGEST_SIZE, + .init = sha256_base_init, + .update = sha256_avx2_update, + .final = sha256_avx2_final, + .finup = sha256_avx2_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha256", + .cra_driver_name = "sha256-avx2", + .cra_priority = 170, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA224_DIGEST_SIZE, + .init = sha224_base_init, + .update = sha256_avx2_update, + .final = sha256_avx2_final, + .finup = sha256_avx2_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha224", + .cra_driver_name = "sha224-avx2", + .cra_priority = 170, + .cra_blocksize = SHA224_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static bool avx2_usable(void) +{ + if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) && + boot_cpu_has(X86_FEATURE_BMI2)) + return true; + + return false; +} + +static int register_sha256_avx2(void) +{ + if (avx2_usable()) + return crypto_register_shashes(sha256_avx2_algs, + ARRAY_SIZE(sha256_avx2_algs)); + return 0; +} + +static void unregister_sha256_avx2(void) +{ + if (avx2_usable()) + crypto_unregister_shashes(sha256_avx2_algs, + ARRAY_SIZE(sha256_avx2_algs)); +} + +#else +static inline int register_sha256_avx2(void) { return 0; } +static inline void unregister_sha256_avx2(void) { } +#endif + +#ifdef CONFIG_AS_SHA256_NI +asmlinkage void sha256_ni_transform(u32 *digest, const char *data, + u64 rounds); /*unsigned int rounds);*/ + +static int sha256_ni_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha256_update(desc, data, len, sha256_ni_transform); +} + +static int sha256_ni_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha256_finup(desc, data, len, out, sha256_ni_transform); +} + +static int sha256_ni_final(struct shash_desc *desc, u8 *out) +{ + return sha256_ni_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha256_ni_algs[] = { { + .digestsize = SHA256_DIGEST_SIZE, + .init = sha256_base_init, + .update = sha256_ni_update, + .final = sha256_ni_final, + .finup = sha256_ni_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha256", + .cra_driver_name = "sha256-ni", + .cra_priority = 250, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA224_DIGEST_SIZE, + .init = sha224_base_init, + .update = sha256_ni_update, + .final = sha256_ni_final, + .finup = sha256_ni_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha224", + .cra_driver_name = "sha224-ni", + .cra_priority = 250, + .cra_blocksize = SHA224_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static int register_sha256_ni(void) +{ + if (boot_cpu_has(X86_FEATURE_SHA_NI)) + return crypto_register_shashes(sha256_ni_algs, + ARRAY_SIZE(sha256_ni_algs)); + return 0; +} + +static void unregister_sha256_ni(void) +{ + if (boot_cpu_has(X86_FEATURE_SHA_NI)) + crypto_unregister_shashes(sha256_ni_algs, + ARRAY_SIZE(sha256_ni_algs)); +} + +#else +static inline int register_sha256_ni(void) { return 0; } +static inline void unregister_sha256_ni(void) { } +#endif + +static int __init sha256_ssse3_mod_init(void) +{ + if (register_sha256_ssse3()) + goto fail; + + if (register_sha256_avx()) { + unregister_sha256_ssse3(); + goto fail; + } + + if (register_sha256_avx2()) { + unregister_sha256_avx(); + unregister_sha256_ssse3(); + goto fail; + } + + if (register_sha256_ni()) { + unregister_sha256_avx2(); + unregister_sha256_avx(); + unregister_sha256_ssse3(); + goto fail; + } + + return 0; +fail: + return -ENODEV; +} + +static void __exit sha256_ssse3_mod_fini(void) +{ + unregister_sha256_ni(); + unregister_sha256_avx2(); + unregister_sha256_avx(); + unregister_sha256_ssse3(); +} + +module_init(sha256_ssse3_mod_init); +module_exit(sha256_ssse3_mod_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm, Supplemental SSE3 accelerated"); + +MODULE_ALIAS_CRYPTO("sha256"); +MODULE_ALIAS_CRYPTO("sha256-ssse3"); +MODULE_ALIAS_CRYPTO("sha256-avx"); +MODULE_ALIAS_CRYPTO("sha256-avx2"); +MODULE_ALIAS_CRYPTO("sha224"); +MODULE_ALIAS_CRYPTO("sha224-ssse3"); +MODULE_ALIAS_CRYPTO("sha224-avx"); +MODULE_ALIAS_CRYPTO("sha224-avx2"); +#ifdef CONFIG_AS_SHA256_NI +MODULE_ALIAS_CRYPTO("sha256-ni"); +MODULE_ALIAS_CRYPTO("sha224-ni"); +#endif diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S new file mode 100644 index 000000000..39235fefe --- /dev/null +++ b/arch/x86/crypto/sha512-avx-asm.S @@ -0,0 +1,426 @@ +######################################################################## +# Implement fast SHA-512 with AVX instructions. (x86_64) +# +# Copyright (C) 2013 Intel Corporation. +# +# Authors: +# James Guilford <james.guilford@intel.com> +# Kirk Yap <kirk.s.yap@intel.com> +# David Cote <david.m.cote@intel.com> +# Tim Chen <tim.c.chen@linux.intel.com> +# +# This software is available to you under a choice of one of two +# licenses. You may choose to be licensed under the terms of the GNU +# General Public License (GPL) Version 2, available from the file +# COPYING in the main directory of this source tree, or the +# OpenIB.org BSD license below: +# +# Redistribution and use in source and binary forms, with or +# without modification, are permitted provided that the following +# conditions are met: +# +# - Redistributions of source code must retain the above +# copyright notice, this list of conditions and the following +# disclaimer. +# +# - Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials +# provided with the distribution. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# +######################################################################## +# +# This code is described in an Intel White-Paper: +# "Fast SHA-512 Implementations on Intel Architecture Processors" +# +# To find it, surf to http://www.intel.com/p/en_US/embedded +# and search for that title. +# +######################################################################## + +#ifdef CONFIG_AS_AVX +#include <linux/linkage.h> + +.text + +# Virtual Registers +# ARG1 +digest = %rdi +# ARG2 +msg = %rsi +# ARG3 +msglen = %rdx +T1 = %rcx +T2 = %r8 +a_64 = %r9 +b_64 = %r10 +c_64 = %r11 +d_64 = %r12 +e_64 = %r13 +f_64 = %r14 +g_64 = %r15 +h_64 = %rbx +tmp0 = %rax + +# Local variables (stack frame) + +# Message Schedule +W_SIZE = 80*8 +# W[t] + K[t] | W[t+1] + K[t+1] +WK_SIZE = 2*8 +RSPSAVE_SIZE = 1*8 +GPRSAVE_SIZE = 5*8 + +frame_W = 0 +frame_WK = frame_W + W_SIZE +frame_RSPSAVE = frame_WK + WK_SIZE +frame_GPRSAVE = frame_RSPSAVE + RSPSAVE_SIZE +frame_size = frame_GPRSAVE + GPRSAVE_SIZE + +# Useful QWORD "arrays" for simpler memory references +# MSG, DIGEST, K_t, W_t are arrays +# WK_2(t) points to 1 of 2 qwords at frame.WK depdending on t being odd/even + +# Input message (arg1) +#define MSG(i) 8*i(msg) + +# Output Digest (arg2) +#define DIGEST(i) 8*i(digest) + +# SHA Constants (static mem) +#define K_t(i) 8*i+K512(%rip) + +# Message Schedule (stack frame) +#define W_t(i) 8*i+frame_W(%rsp) + +# W[t]+K[t] (stack frame) +#define WK_2(i) 8*((i%2))+frame_WK(%rsp) + +.macro RotateState + # Rotate symbols a..h right + TMP = h_64 + h_64 = g_64 + g_64 = f_64 + f_64 = e_64 + e_64 = d_64 + d_64 = c_64 + c_64 = b_64 + b_64 = a_64 + a_64 = TMP +.endm + +.macro RORQ p1 p2 + # shld is faster than ror on Sandybridge + shld $(64-\p2), \p1, \p1 +.endm + +.macro SHA512_Round rnd + # Compute Round %%t + mov f_64, T1 # T1 = f + mov e_64, tmp0 # tmp = e + xor g_64, T1 # T1 = f ^ g + RORQ tmp0, 23 # 41 # tmp = e ror 23 + and e_64, T1 # T1 = (f ^ g) & e + xor e_64, tmp0 # tmp = (e ror 23) ^ e + xor g_64, T1 # T1 = ((f ^ g) & e) ^ g = CH(e,f,g) + idx = \rnd + add WK_2(idx), T1 # W[t] + K[t] from message scheduler + RORQ tmp0, 4 # 18 # tmp = ((e ror 23) ^ e) ror 4 + xor e_64, tmp0 # tmp = (((e ror 23) ^ e) ror 4) ^ e + mov a_64, T2 # T2 = a + add h_64, T1 # T1 = CH(e,f,g) + W[t] + K[t] + h + RORQ tmp0, 14 # 14 # tmp = ((((e ror23)^e)ror4)^e)ror14 = S1(e) + add tmp0, T1 # T1 = CH(e,f,g) + W[t] + K[t] + S1(e) + mov a_64, tmp0 # tmp = a + xor c_64, T2 # T2 = a ^ c + and c_64, tmp0 # tmp = a & c + and b_64, T2 # T2 = (a ^ c) & b + xor tmp0, T2 # T2 = ((a ^ c) & b) ^ (a & c) = Maj(a,b,c) + mov a_64, tmp0 # tmp = a + RORQ tmp0, 5 # 39 # tmp = a ror 5 + xor a_64, tmp0 # tmp = (a ror 5) ^ a + add T1, d_64 # e(next_state) = d + T1 + RORQ tmp0, 6 # 34 # tmp = ((a ror 5) ^ a) ror 6 + xor a_64, tmp0 # tmp = (((a ror 5) ^ a) ror 6) ^ a + lea (T1, T2), h_64 # a(next_state) = T1 + Maj(a,b,c) + RORQ tmp0, 28 # 28 # tmp = ((((a ror5)^a)ror6)^a)ror28 = S0(a) + add tmp0, h_64 # a(next_state) = T1 + Maj(a,b,c) S0(a) + RotateState +.endm + +.macro SHA512_2Sched_2Round_avx rnd + # Compute rounds t-2 and t-1 + # Compute message schedule QWORDS t and t+1 + + # Two rounds are computed based on the values for K[t-2]+W[t-2] and + # K[t-1]+W[t-1] which were previously stored at WK_2 by the message + # scheduler. + # The two new schedule QWORDS are stored at [W_t(t)] and [W_t(t+1)]. + # They are then added to their respective SHA512 constants at + # [K_t(t)] and [K_t(t+1)] and stored at dqword [WK_2(t)] + # For brievity, the comments following vectored instructions only refer to + # the first of a pair of QWORDS. + # Eg. XMM4=W[t-2] really means XMM4={W[t-2]|W[t-1]} + # The computation of the message schedule and the rounds are tightly + # stitched to take advantage of instruction-level parallelism. + + idx = \rnd - 2 + vmovdqa W_t(idx), %xmm4 # XMM4 = W[t-2] + idx = \rnd - 15 + vmovdqu W_t(idx), %xmm5 # XMM5 = W[t-15] + mov f_64, T1 + vpsrlq $61, %xmm4, %xmm0 # XMM0 = W[t-2]>>61 + mov e_64, tmp0 + vpsrlq $1, %xmm5, %xmm6 # XMM6 = W[t-15]>>1 + xor g_64, T1 + RORQ tmp0, 23 # 41 + vpsrlq $19, %xmm4, %xmm1 # XMM1 = W[t-2]>>19 + and e_64, T1 + xor e_64, tmp0 + vpxor %xmm1, %xmm0, %xmm0 # XMM0 = W[t-2]>>61 ^ W[t-2]>>19 + xor g_64, T1 + idx = \rnd + add WK_2(idx), T1# + vpsrlq $8, %xmm5, %xmm7 # XMM7 = W[t-15]>>8 + RORQ tmp0, 4 # 18 + vpsrlq $6, %xmm4, %xmm2 # XMM2 = W[t-2]>>6 + xor e_64, tmp0 + mov a_64, T2 + add h_64, T1 + vpxor %xmm7, %xmm6, %xmm6 # XMM6 = W[t-15]>>1 ^ W[t-15]>>8 + RORQ tmp0, 14 # 14 + add tmp0, T1 + vpsrlq $7, %xmm5, %xmm8 # XMM8 = W[t-15]>>7 + mov a_64, tmp0 + xor c_64, T2 + vpsllq $(64-61), %xmm4, %xmm3 # XMM3 = W[t-2]<<3 + and c_64, tmp0 + and b_64, T2 + vpxor %xmm3, %xmm2, %xmm2 # XMM2 = W[t-2]>>6 ^ W[t-2]<<3 + xor tmp0, T2 + mov a_64, tmp0 + vpsllq $(64-1), %xmm5, %xmm9 # XMM9 = W[t-15]<<63 + RORQ tmp0, 5 # 39 + vpxor %xmm9, %xmm8, %xmm8 # XMM8 = W[t-15]>>7 ^ W[t-15]<<63 + xor a_64, tmp0 + add T1, d_64 + RORQ tmp0, 6 # 34 + xor a_64, tmp0 + vpxor %xmm8, %xmm6, %xmm6 # XMM6 = W[t-15]>>1 ^ W[t-15]>>8 ^ + # W[t-15]>>7 ^ W[t-15]<<63 + lea (T1, T2), h_64 + RORQ tmp0, 28 # 28 + vpsllq $(64-19), %xmm4, %xmm4 # XMM4 = W[t-2]<<25 + add tmp0, h_64 + RotateState + vpxor %xmm4, %xmm0, %xmm0 # XMM0 = W[t-2]>>61 ^ W[t-2]>>19 ^ + # W[t-2]<<25 + mov f_64, T1 + vpxor %xmm2, %xmm0, %xmm0 # XMM0 = s1(W[t-2]) + mov e_64, tmp0 + xor g_64, T1 + idx = \rnd - 16 + vpaddq W_t(idx), %xmm0, %xmm0 # XMM0 = s1(W[t-2]) + W[t-16] + idx = \rnd - 7 + vmovdqu W_t(idx), %xmm1 # XMM1 = W[t-7] + RORQ tmp0, 23 # 41 + and e_64, T1 + xor e_64, tmp0 + xor g_64, T1 + vpsllq $(64-8), %xmm5, %xmm5 # XMM5 = W[t-15]<<56 + idx = \rnd + 1 + add WK_2(idx), T1 + vpxor %xmm5, %xmm6, %xmm6 # XMM6 = s0(W[t-15]) + RORQ tmp0, 4 # 18 + vpaddq %xmm6, %xmm0, %xmm0 # XMM0 = s1(W[t-2]) + W[t-16] + s0(W[t-15]) + xor e_64, tmp0 + vpaddq %xmm1, %xmm0, %xmm0 # XMM0 = W[t] = s1(W[t-2]) + W[t-7] + + # s0(W[t-15]) + W[t-16] + mov a_64, T2 + add h_64, T1 + RORQ tmp0, 14 # 14 + add tmp0, T1 + idx = \rnd + vmovdqa %xmm0, W_t(idx) # Store W[t] + vpaddq K_t(idx), %xmm0, %xmm0 # Compute W[t]+K[t] + vmovdqa %xmm0, WK_2(idx) # Store W[t]+K[t] for next rounds + mov a_64, tmp0 + xor c_64, T2 + and c_64, tmp0 + and b_64, T2 + xor tmp0, T2 + mov a_64, tmp0 + RORQ tmp0, 5 # 39 + xor a_64, tmp0 + add T1, d_64 + RORQ tmp0, 6 # 34 + xor a_64, tmp0 + lea (T1, T2), h_64 + RORQ tmp0, 28 # 28 + add tmp0, h_64 + RotateState +.endm + +######################################################################## +# void sha512_transform_avx(void* D, const void* M, u64 L) +# Purpose: Updates the SHA512 digest stored at D with the message stored in M. +# The size of the message pointed to by M must be an integer multiple of SHA512 +# message blocks. +# L is the message length in SHA512 blocks +######################################################################## +ENTRY(sha512_transform_avx) + cmp $0, msglen + je nowork + + # Allocate Stack Space + mov %rsp, %rax + sub $frame_size, %rsp + and $~(0x20 - 1), %rsp + mov %rax, frame_RSPSAVE(%rsp) + + # Save GPRs + mov %rbx, frame_GPRSAVE(%rsp) + mov %r12, frame_GPRSAVE +8*1(%rsp) + mov %r13, frame_GPRSAVE +8*2(%rsp) + mov %r14, frame_GPRSAVE +8*3(%rsp) + mov %r15, frame_GPRSAVE +8*4(%rsp) + +updateblock: + + # Load state variables + mov DIGEST(0), a_64 + mov DIGEST(1), b_64 + mov DIGEST(2), c_64 + mov DIGEST(3), d_64 + mov DIGEST(4), e_64 + mov DIGEST(5), f_64 + mov DIGEST(6), g_64 + mov DIGEST(7), h_64 + + t = 0 + .rept 80/2 + 1 + # (80 rounds) / (2 rounds/iteration) + (1 iteration) + # +1 iteration because the scheduler leads hashing by 1 iteration + .if t < 2 + # BSWAP 2 QWORDS + vmovdqa XMM_QWORD_BSWAP(%rip), %xmm1 + vmovdqu MSG(t), %xmm0 + vpshufb %xmm1, %xmm0, %xmm0 # BSWAP + vmovdqa %xmm0, W_t(t) # Store Scheduled Pair + vpaddq K_t(t), %xmm0, %xmm0 # Compute W[t]+K[t] + vmovdqa %xmm0, WK_2(t) # Store into WK for rounds + .elseif t < 16 + # BSWAP 2 QWORDS# Compute 2 Rounds + vmovdqu MSG(t), %xmm0 + vpshufb %xmm1, %xmm0, %xmm0 # BSWAP + SHA512_Round t-2 # Round t-2 + vmovdqa %xmm0, W_t(t) # Store Scheduled Pair + vpaddq K_t(t), %xmm0, %xmm0 # Compute W[t]+K[t] + SHA512_Round t-1 # Round t-1 + vmovdqa %xmm0, WK_2(t)# Store W[t]+K[t] into WK + .elseif t < 79 + # Schedule 2 QWORDS# Compute 2 Rounds + SHA512_2Sched_2Round_avx t + .else + # Compute 2 Rounds + SHA512_Round t-2 + SHA512_Round t-1 + .endif + t = t+2 + .endr + + # Update digest + add a_64, DIGEST(0) + add b_64, DIGEST(1) + add c_64, DIGEST(2) + add d_64, DIGEST(3) + add e_64, DIGEST(4) + add f_64, DIGEST(5) + add g_64, DIGEST(6) + add h_64, DIGEST(7) + + # Advance to next message block + add $16*8, msg + dec msglen + jnz updateblock + + # Restore GPRs + mov frame_GPRSAVE(%rsp), %rbx + mov frame_GPRSAVE +8*1(%rsp), %r12 + mov frame_GPRSAVE +8*2(%rsp), %r13 + mov frame_GPRSAVE +8*3(%rsp), %r14 + mov frame_GPRSAVE +8*4(%rsp), %r15 + + # Restore Stack Pointer + mov frame_RSPSAVE(%rsp), %rsp + +nowork: + ret +ENDPROC(sha512_transform_avx) + +######################################################################## +### Binary Data + +.section .rodata.cst16.XMM_QWORD_BSWAP, "aM", @progbits, 16 +.align 16 +# Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb. +XMM_QWORD_BSWAP: + .octa 0x08090a0b0c0d0e0f0001020304050607 + +# Mergeable 640-byte rodata section. This allows linker to merge the table +# with other, exactly the same 640-byte fragment of another rodata section +# (if such section exists). +.section .rodata.cst640.K512, "aM", @progbits, 640 +.align 64 +# K[t] used in SHA512 hashing +K512: + .quad 0x428a2f98d728ae22,0x7137449123ef65cd + .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc + .quad 0x3956c25bf348b538,0x59f111f1b605d019 + .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 + .quad 0xd807aa98a3030242,0x12835b0145706fbe + .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 + .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 + .quad 0x9bdc06a725c71235,0xc19bf174cf692694 + .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 + .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 + .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 + .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 + .quad 0x983e5152ee66dfab,0xa831c66d2db43210 + .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 + .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 + .quad 0x06ca6351e003826f,0x142929670a0e6e70 + .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 + .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df + .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 + .quad 0x81c2c92e47edaee6,0x92722c851482353b + .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 + .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 + .quad 0xd192e819d6ef5218,0xd69906245565a910 + .quad 0xf40e35855771202a,0x106aa07032bbd1b8 + .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 + .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 + .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb + .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 + .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 + .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec + .quad 0x90befffa23631e28,0xa4506cebde82bde9 + .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b + .quad 0xca273eceea26619c,0xd186b8c721c0c207 + .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 + .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 + .quad 0x113f9804bef90dae,0x1b710b35131c471b + .quad 0x28db77f523047d84,0x32caab7b40c72493 + .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c + .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a + .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 +#endif diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S new file mode 100644 index 000000000..b16d56005 --- /dev/null +++ b/arch/x86/crypto/sha512-avx2-asm.S @@ -0,0 +1,752 @@ +######################################################################## +# Implement fast SHA-512 with AVX2 instructions. (x86_64) +# +# Copyright (C) 2013 Intel Corporation. +# +# Authors: +# James Guilford <james.guilford@intel.com> +# Kirk Yap <kirk.s.yap@intel.com> +# David Cote <david.m.cote@intel.com> +# Tim Chen <tim.c.chen@linux.intel.com> +# +# This software is available to you under a choice of one of two +# licenses. You may choose to be licensed under the terms of the GNU +# General Public License (GPL) Version 2, available from the file +# COPYING in the main directory of this source tree, or the +# OpenIB.org BSD license below: +# +# Redistribution and use in source and binary forms, with or +# without modification, are permitted provided that the following +# conditions are met: +# +# - Redistributions of source code must retain the above +# copyright notice, this list of conditions and the following +# disclaimer. +# +# - Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials +# provided with the distribution. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# +######################################################################## +# +# This code is described in an Intel White-Paper: +# "Fast SHA-512 Implementations on Intel Architecture Processors" +# +# To find it, surf to http://www.intel.com/p/en_US/embedded +# and search for that title. +# +######################################################################## +# This code schedules 1 blocks at a time, with 4 lanes per block +######################################################################## + +#ifdef CONFIG_AS_AVX2 +#include <linux/linkage.h> + +.text + +# Virtual Registers +Y_0 = %ymm4 +Y_1 = %ymm5 +Y_2 = %ymm6 +Y_3 = %ymm7 + +YTMP0 = %ymm0 +YTMP1 = %ymm1 +YTMP2 = %ymm2 +YTMP3 = %ymm3 +YTMP4 = %ymm8 +XFER = YTMP0 + +BYTE_FLIP_MASK = %ymm9 + +# 1st arg is %rdi, which is saved to the stack and accessed later via %r12 +CTX1 = %rdi +CTX2 = %r12 +# 2nd arg +INP = %rsi +# 3rd arg +NUM_BLKS = %rdx + +c = %rcx +d = %r8 +e = %rdx +y3 = %rsi + +TBL = %rdi # clobbers CTX1 + +a = %rax +b = %rbx + +f = %r9 +g = %r10 +h = %r11 +old_h = %r11 + +T1 = %r12 # clobbers CTX2 +y0 = %r13 +y1 = %r14 +y2 = %r15 + +# Local variables (stack frame) +XFER_SIZE = 4*8 +SRND_SIZE = 1*8 +INP_SIZE = 1*8 +INPEND_SIZE = 1*8 +CTX_SIZE = 1*8 +RSPSAVE_SIZE = 1*8 +GPRSAVE_SIZE = 5*8 + +frame_XFER = 0 +frame_SRND = frame_XFER + XFER_SIZE +frame_INP = frame_SRND + SRND_SIZE +frame_INPEND = frame_INP + INP_SIZE +frame_CTX = frame_INPEND + INPEND_SIZE +frame_RSPSAVE = frame_CTX + CTX_SIZE +frame_GPRSAVE = frame_RSPSAVE + RSPSAVE_SIZE +frame_size = frame_GPRSAVE + GPRSAVE_SIZE + +## assume buffers not aligned +#define VMOVDQ vmovdqu + +# addm [mem], reg +# Add reg to mem using reg-mem add and store +.macro addm p1 p2 + add \p1, \p2 + mov \p2, \p1 +.endm + + +# COPY_YMM_AND_BSWAP ymm, [mem], byte_flip_mask +# Load ymm with mem and byte swap each dword +.macro COPY_YMM_AND_BSWAP p1 p2 p3 + VMOVDQ \p2, \p1 + vpshufb \p3, \p1, \p1 +.endm +# rotate_Ys +# Rotate values of symbols Y0...Y3 +.macro rotate_Ys + Y_ = Y_0 + Y_0 = Y_1 + Y_1 = Y_2 + Y_2 = Y_3 + Y_3 = Y_ +.endm + +# RotateState +.macro RotateState + # Rotate symbols a..h right + old_h = h + TMP_ = h + h = g + g = f + f = e + e = d + d = c + c = b + b = a + a = TMP_ +.endm + +# macro MY_VPALIGNR YDST, YSRC1, YSRC2, RVAL +# YDST = {YSRC1, YSRC2} >> RVAL*8 +.macro MY_VPALIGNR YDST YSRC1 YSRC2 RVAL + vperm2f128 $0x3, \YSRC2, \YSRC1, \YDST # YDST = {YS1_LO, YS2_HI} + vpalignr $\RVAL, \YSRC2, \YDST, \YDST # YDST = {YDS1, YS2} >> RVAL*8 +.endm + +.macro FOUR_ROUNDS_AND_SCHED +################################### RND N + 0 ######################################### + + # Extract w[t-7] + MY_VPALIGNR YTMP0, Y_3, Y_2, 8 # YTMP0 = W[-7] + # Calculate w[t-16] + w[t-7] + vpaddq Y_0, YTMP0, YTMP0 # YTMP0 = W[-7] + W[-16] + # Extract w[t-15] + MY_VPALIGNR YTMP1, Y_1, Y_0, 8 # YTMP1 = W[-15] + + # Calculate sigma0 + + # Calculate w[t-15] ror 1 + vpsrlq $1, YTMP1, YTMP2 + vpsllq $(64-1), YTMP1, YTMP3 + vpor YTMP2, YTMP3, YTMP3 # YTMP3 = W[-15] ror 1 + # Calculate w[t-15] shr 7 + vpsrlq $7, YTMP1, YTMP4 # YTMP4 = W[-15] >> 7 + + mov a, y3 # y3 = a # MAJA + rorx $41, e, y0 # y0 = e >> 41 # S1A + rorx $18, e, y1 # y1 = e >> 18 # S1B + add frame_XFER(%rsp),h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + mov f, y2 # y2 = f # CH + rorx $34, a, T1 # T1 = a >> 34 # S0B + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1 + xor g, y2 # y2 = f^g # CH + rorx $14, e, y1 # y1 = (e >> 14) # S1 + + and e, y2 # y2 = (f^g)&e # CH + xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1 + rorx $39, a, y1 # y1 = a >> 39 # S0A + add h, d # d = k + w + h + d # -- + + and b, y3 # y3 = (a|c)&b # MAJA + xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0 + rorx $28, a, T1 # T1 = (a >> 28) # S0 + + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0 + mov a, T1 # T1 = a # MAJB + and c, T1 # T1 = a&c # MAJB + + add y0, y2 # y2 = S1 + CH # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + add y3, h # h = t1 + S0 + MAJ # -- + + RotateState + +################################### RND N + 1 ######################################### + + # Calculate w[t-15] ror 8 + vpsrlq $8, YTMP1, YTMP2 + vpsllq $(64-8), YTMP1, YTMP1 + vpor YTMP2, YTMP1, YTMP1 # YTMP1 = W[-15] ror 8 + # XOR the three components + vpxor YTMP4, YTMP3, YTMP3 # YTMP3 = W[-15] ror 1 ^ W[-15] >> 7 + vpxor YTMP1, YTMP3, YTMP1 # YTMP1 = s0 + + + # Add three components, w[t-16], w[t-7] and sigma0 + vpaddq YTMP1, YTMP0, YTMP0 # YTMP0 = W[-16] + W[-7] + s0 + # Move to appropriate lanes for calculating w[16] and w[17] + vperm2f128 $0x0, YTMP0, YTMP0, Y_0 # Y_0 = W[-16] + W[-7] + s0 {BABA} + # Move to appropriate lanes for calculating w[18] and w[19] + vpand MASK_YMM_LO(%rip), YTMP0, YTMP0 # YTMP0 = W[-16] + W[-7] + s0 {DC00} + + # Calculate w[16] and w[17] in both 128 bit lanes + + # Calculate sigma1 for w[16] and w[17] on both 128 bit lanes + vperm2f128 $0x11, Y_3, Y_3, YTMP2 # YTMP2 = W[-2] {BABA} + vpsrlq $6, YTMP2, YTMP4 # YTMP4 = W[-2] >> 6 {BABA} + + + mov a, y3 # y3 = a # MAJA + rorx $41, e, y0 # y0 = e >> 41 # S1A + rorx $18, e, y1 # y1 = e >> 18 # S1B + add 1*8+frame_XFER(%rsp), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + + mov f, y2 # y2 = f # CH + rorx $34, a, T1 # T1 = a >> 34 # S0B + xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1 + xor g, y2 # y2 = f^g # CH + + + rorx $14, e, y1 # y1 = (e >> 14) # S1 + xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1 + rorx $39, a, y1 # y1 = a >> 39 # S0A + and e, y2 # y2 = (f^g)&e # CH + add h, d # d = k + w + h + d # -- + + and b, y3 # y3 = (a|c)&b # MAJA + xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0 + + rorx $28, a, T1 # T1 = (a >> 28) # S0 + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0 + mov a, T1 # T1 = a # MAJB + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + add y3, h # h = t1 + S0 + MAJ # -- + + RotateState + + +################################### RND N + 2 ######################################### + + vpsrlq $19, YTMP2, YTMP3 # YTMP3 = W[-2] >> 19 {BABA} + vpsllq $(64-19), YTMP2, YTMP1 # YTMP1 = W[-2] << 19 {BABA} + vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 19 {BABA} + vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = W[-2] ror 19 ^ W[-2] >> 6 {BABA} + vpsrlq $61, YTMP2, YTMP3 # YTMP3 = W[-2] >> 61 {BABA} + vpsllq $(64-61), YTMP2, YTMP1 # YTMP1 = W[-2] << 61 {BABA} + vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 61 {BABA} + vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = s1 = (W[-2] ror 19) ^ + # (W[-2] ror 61) ^ (W[-2] >> 6) {BABA} + + # Add sigma1 to the other compunents to get w[16] and w[17] + vpaddq YTMP4, Y_0, Y_0 # Y_0 = {W[1], W[0], W[1], W[0]} + + # Calculate sigma1 for w[18] and w[19] for upper 128 bit lane + vpsrlq $6, Y_0, YTMP4 # YTMP4 = W[-2] >> 6 {DC--} + + mov a, y3 # y3 = a # MAJA + rorx $41, e, y0 # y0 = e >> 41 # S1A + add 2*8+frame_XFER(%rsp), h # h = k + w + h # -- + + rorx $18, e, y1 # y1 = e >> 18 # S1B + or c, y3 # y3 = a|c # MAJA + mov f, y2 # y2 = f # CH + xor g, y2 # y2 = f^g # CH + + rorx $34, a, T1 # T1 = a >> 34 # S0B + xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1 + and e, y2 # y2 = (f^g)&e # CH + + rorx $14, e, y1 # y1 = (e >> 14) # S1 + add h, d # d = k + w + h + d # -- + and b, y3 # y3 = (a|c)&b # MAJA + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1 + rorx $39, a, y1 # y1 = a >> 39 # S0A + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0 + rorx $28, a, T1 # T1 = (a >> 28) # S0 + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0 + mov a, T1 # T1 = a # MAJB + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + + add y3, h # h = t1 + S0 + MAJ # -- + + RotateState + +################################### RND N + 3 ######################################### + + vpsrlq $19, Y_0, YTMP3 # YTMP3 = W[-2] >> 19 {DC--} + vpsllq $(64-19), Y_0, YTMP1 # YTMP1 = W[-2] << 19 {DC--} + vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 19 {DC--} + vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = W[-2] ror 19 ^ W[-2] >> 6 {DC--} + vpsrlq $61, Y_0, YTMP3 # YTMP3 = W[-2] >> 61 {DC--} + vpsllq $(64-61), Y_0, YTMP1 # YTMP1 = W[-2] << 61 {DC--} + vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 61 {DC--} + vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = s1 = (W[-2] ror 19) ^ + # (W[-2] ror 61) ^ (W[-2] >> 6) {DC--} + + # Add the sigma0 + w[t-7] + w[t-16] for w[18] and w[19] + # to newly calculated sigma1 to get w[18] and w[19] + vpaddq YTMP4, YTMP0, YTMP2 # YTMP2 = {W[3], W[2], --, --} + + # Form w[19, w[18], w17], w[16] + vpblendd $0xF0, YTMP2, Y_0, Y_0 # Y_0 = {W[3], W[2], W[1], W[0]} + + mov a, y3 # y3 = a # MAJA + rorx $41, e, y0 # y0 = e >> 41 # S1A + rorx $18, e, y1 # y1 = e >> 18 # S1B + add 3*8+frame_XFER(%rsp), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + + mov f, y2 # y2 = f # CH + rorx $34, a, T1 # T1 = a >> 34 # S0B + xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1 + xor g, y2 # y2 = f^g # CH + + + rorx $14, e, y1 # y1 = (e >> 14) # S1 + and e, y2 # y2 = (f^g)&e # CH + add h, d # d = k + w + h + d # -- + and b, y3 # y3 = (a|c)&b # MAJA + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1 + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + + rorx $39, a, y1 # y1 = a >> 39 # S0A + add y0, y2 # y2 = S1 + CH # -- + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0 + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + rorx $28, a, T1 # T1 = (a >> 28) # S0 + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0 + mov a, T1 # T1 = a # MAJB + and c, T1 # T1 = a&c # MAJB + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + + add y1, h # h = k + w + h + S0 # -- + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + add y3, h # h = t1 + S0 + MAJ # -- + + RotateState + + rotate_Ys +.endm + +.macro DO_4ROUNDS + +################################### RND N + 0 ######################################### + + mov f, y2 # y2 = f # CH + rorx $41, e, y0 # y0 = e >> 41 # S1A + rorx $18, e, y1 # y1 = e >> 18 # S1B + xor g, y2 # y2 = f^g # CH + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1 + rorx $14, e, y1 # y1 = (e >> 14) # S1 + and e, y2 # y2 = (f^g)&e # CH + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1 + rorx $34, a, T1 # T1 = a >> 34 # S0B + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + rorx $39, a, y1 # y1 = a >> 39 # S0A + mov a, y3 # y3 = a # MAJA + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0 + rorx $28, a, T1 # T1 = (a >> 28) # S0 + add frame_XFER(%rsp), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0 + mov a, T1 # T1 = a # MAJB + and b, y3 # y3 = (a|c)&b # MAJA + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + add h, d # d = k + w + h + d # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + RotateState + +################################### RND N + 1 ######################################### + + add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + mov f, y2 # y2 = f # CH + rorx $41, e, y0 # y0 = e >> 41 # S1A + rorx $18, e, y1 # y1 = e >> 18 # S1B + xor g, y2 # y2 = f^g # CH + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1 + rorx $14, e, y1 # y1 = (e >> 14) # S1 + and e, y2 # y2 = (f^g)&e # CH + add y3, old_h # h = t1 + S0 + MAJ # -- + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1 + rorx $34, a, T1 # T1 = a >> 34 # S0B + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + rorx $39, a, y1 # y1 = a >> 39 # S0A + mov a, y3 # y3 = a # MAJA + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0 + rorx $28, a, T1 # T1 = (a >> 28) # S0 + add 8*1+frame_XFER(%rsp), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0 + mov a, T1 # T1 = a # MAJB + and b, y3 # y3 = (a|c)&b # MAJA + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + add h, d # d = k + w + h + d # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + RotateState + +################################### RND N + 2 ######################################### + + add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + mov f, y2 # y2 = f # CH + rorx $41, e, y0 # y0 = e >> 41 # S1A + rorx $18, e, y1 # y1 = e >> 18 # S1B + xor g, y2 # y2 = f^g # CH + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1 + rorx $14, e, y1 # y1 = (e >> 14) # S1 + and e, y2 # y2 = (f^g)&e # CH + add y3, old_h # h = t1 + S0 + MAJ # -- + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1 + rorx $34, a, T1 # T1 = a >> 34 # S0B + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + rorx $39, a, y1 # y1 = a >> 39 # S0A + mov a, y3 # y3 = a # MAJA + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0 + rorx $28, a, T1 # T1 = (a >> 28) # S0 + add 8*2+frame_XFER(%rsp), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0 + mov a, T1 # T1 = a # MAJB + and b, y3 # y3 = (a|c)&b # MAJA + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + add h, d # d = k + w + h + d # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + RotateState + +################################### RND N + 3 ######################################### + + add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + mov f, y2 # y2 = f # CH + rorx $41, e, y0 # y0 = e >> 41 # S1A + rorx $18, e, y1 # y1 = e >> 18 # S1B + xor g, y2 # y2 = f^g # CH + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1 + rorx $14, e, y1 # y1 = (e >> 14) # S1 + and e, y2 # y2 = (f^g)&e # CH + add y3, old_h # h = t1 + S0 + MAJ # -- + + xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1 + rorx $34, a, T1 # T1 = a >> 34 # S0B + xor g, y2 # y2 = CH = ((f^g)&e)^g # CH + rorx $39, a, y1 # y1 = a >> 39 # S0A + mov a, y3 # y3 = a # MAJA + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0 + rorx $28, a, T1 # T1 = (a >> 28) # S0 + add 8*3+frame_XFER(%rsp), h # h = k + w + h # -- + or c, y3 # y3 = a|c # MAJA + + xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0 + mov a, T1 # T1 = a # MAJB + and b, y3 # y3 = (a|c)&b # MAJA + and c, T1 # T1 = a&c # MAJB + add y0, y2 # y2 = S1 + CH # -- + + + add h, d # d = k + w + h + d # -- + or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ + add y1, h # h = k + w + h + S0 # -- + + add y2, d # d = k + w + h + d + S1 + CH = d + t1 # -- + + add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# -- + + add y3, h # h = t1 + S0 + MAJ # -- + + RotateState + +.endm + +######################################################################## +# void sha512_transform_rorx(void* D, const void* M, uint64_t L)# +# Purpose: Updates the SHA512 digest stored at D with the message stored in M. +# The size of the message pointed to by M must be an integer multiple of SHA512 +# message blocks. +# L is the message length in SHA512 blocks +######################################################################## +ENTRY(sha512_transform_rorx) + # Allocate Stack Space + mov %rsp, %rax + sub $frame_size, %rsp + and $~(0x20 - 1), %rsp + mov %rax, frame_RSPSAVE(%rsp) + + # Save GPRs + mov %rbx, 8*0+frame_GPRSAVE(%rsp) + mov %r12, 8*1+frame_GPRSAVE(%rsp) + mov %r13, 8*2+frame_GPRSAVE(%rsp) + mov %r14, 8*3+frame_GPRSAVE(%rsp) + mov %r15, 8*4+frame_GPRSAVE(%rsp) + + shl $7, NUM_BLKS # convert to bytes + jz done_hash + add INP, NUM_BLKS # pointer to end of data + mov NUM_BLKS, frame_INPEND(%rsp) + + ## load initial digest + mov 8*0(CTX1), a + mov 8*1(CTX1), b + mov 8*2(CTX1), c + mov 8*3(CTX1), d + mov 8*4(CTX1), e + mov 8*5(CTX1), f + mov 8*6(CTX1), g + mov 8*7(CTX1), h + + # save %rdi (CTX) before it gets clobbered + mov %rdi, frame_CTX(%rsp) + + vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK + +loop0: + lea K512(%rip), TBL + + ## byte swap first 16 dwords + COPY_YMM_AND_BSWAP Y_0, (INP), BYTE_FLIP_MASK + COPY_YMM_AND_BSWAP Y_1, 1*32(INP), BYTE_FLIP_MASK + COPY_YMM_AND_BSWAP Y_2, 2*32(INP), BYTE_FLIP_MASK + COPY_YMM_AND_BSWAP Y_3, 3*32(INP), BYTE_FLIP_MASK + + mov INP, frame_INP(%rsp) + + ## schedule 64 input dwords, by doing 12 rounds of 4 each + movq $4, frame_SRND(%rsp) + +.align 16 +loop1: + vpaddq (TBL), Y_0, XFER + vmovdqa XFER, frame_XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + vpaddq 1*32(TBL), Y_0, XFER + vmovdqa XFER, frame_XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + vpaddq 2*32(TBL), Y_0, XFER + vmovdqa XFER, frame_XFER(%rsp) + FOUR_ROUNDS_AND_SCHED + + vpaddq 3*32(TBL), Y_0, XFER + vmovdqa XFER, frame_XFER(%rsp) + add $(4*32), TBL + FOUR_ROUNDS_AND_SCHED + + subq $1, frame_SRND(%rsp) + jne loop1 + + movq $2, frame_SRND(%rsp) +loop2: + vpaddq (TBL), Y_0, XFER + vmovdqa XFER, frame_XFER(%rsp) + DO_4ROUNDS + vpaddq 1*32(TBL), Y_1, XFER + vmovdqa XFER, frame_XFER(%rsp) + add $(2*32), TBL + DO_4ROUNDS + + vmovdqa Y_2, Y_0 + vmovdqa Y_3, Y_1 + + subq $1, frame_SRND(%rsp) + jne loop2 + + mov frame_CTX(%rsp), CTX2 + addm 8*0(CTX2), a + addm 8*1(CTX2), b + addm 8*2(CTX2), c + addm 8*3(CTX2), d + addm 8*4(CTX2), e + addm 8*5(CTX2), f + addm 8*6(CTX2), g + addm 8*7(CTX2), h + + mov frame_INP(%rsp), INP + add $128, INP + cmp frame_INPEND(%rsp), INP + jne loop0 + +done_hash: + +# Restore GPRs + mov 8*0+frame_GPRSAVE(%rsp), %rbx + mov 8*1+frame_GPRSAVE(%rsp), %r12 + mov 8*2+frame_GPRSAVE(%rsp), %r13 + mov 8*3+frame_GPRSAVE(%rsp), %r14 + mov 8*4+frame_GPRSAVE(%rsp), %r15 + + # Restore Stack Pointer + mov frame_RSPSAVE(%rsp), %rsp + ret +ENDPROC(sha512_transform_rorx) + +######################################################################## +### Binary Data + + +# Mergeable 640-byte rodata section. This allows linker to merge the table +# with other, exactly the same 640-byte fragment of another rodata section +# (if such section exists). +.section .rodata.cst640.K512, "aM", @progbits, 640 +.align 64 +# K[t] used in SHA512 hashing +K512: + .quad 0x428a2f98d728ae22,0x7137449123ef65cd + .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc + .quad 0x3956c25bf348b538,0x59f111f1b605d019 + .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 + .quad 0xd807aa98a3030242,0x12835b0145706fbe + .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 + .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 + .quad 0x9bdc06a725c71235,0xc19bf174cf692694 + .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 + .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 + .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 + .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 + .quad 0x983e5152ee66dfab,0xa831c66d2db43210 + .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 + .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 + .quad 0x06ca6351e003826f,0x142929670a0e6e70 + .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 + .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df + .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 + .quad 0x81c2c92e47edaee6,0x92722c851482353b + .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 + .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 + .quad 0xd192e819d6ef5218,0xd69906245565a910 + .quad 0xf40e35855771202a,0x106aa07032bbd1b8 + .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 + .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 + .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb + .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 + .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 + .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec + .quad 0x90befffa23631e28,0xa4506cebde82bde9 + .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b + .quad 0xca273eceea26619c,0xd186b8c721c0c207 + .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 + .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 + .quad 0x113f9804bef90dae,0x1b710b35131c471b + .quad 0x28db77f523047d84,0x32caab7b40c72493 + .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c + .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a + .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 + +.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32 +.align 32 +# Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb. +PSHUFFLE_BYTE_FLIP_MASK: + .octa 0x08090a0b0c0d0e0f0001020304050607 + .octa 0x18191a1b1c1d1e1f1011121314151617 + +.section .rodata.cst32.MASK_YMM_LO, "aM", @progbits, 32 +.align 32 +MASK_YMM_LO: + .octa 0x00000000000000000000000000000000 + .octa 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF + +#endif diff --git a/arch/x86/crypto/sha512-mb/Makefile b/arch/x86/crypto/sha512-mb/Makefile new file mode 100644 index 000000000..90f1ef691 --- /dev/null +++ b/arch/x86/crypto/sha512-mb/Makefile @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Arch-specific CryptoAPI modules. +# + +avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ + $(comma)4)$(comma)%ymm2,yes,no) +ifeq ($(avx2_supported),yes) + obj-$(CONFIG_CRYPTO_SHA512_MB) += sha512-mb.o + sha512-mb-y := sha512_mb.o sha512_mb_mgr_flush_avx2.o \ + sha512_mb_mgr_init_avx2.o sha512_mb_mgr_submit_avx2.o sha512_x4_avx2.o +endif diff --git a/arch/x86/crypto/sha512-mb/sha512_mb.c b/arch/x86/crypto/sha512-mb/sha512_mb.c new file mode 100644 index 000000000..26b856780 --- /dev/null +++ b/arch/x86/crypto/sha512-mb/sha512_mb.c @@ -0,0 +1,1047 @@ +/* + * Multi buffer SHA512 algorithm Glue Code + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/cryptohash.h> +#include <linux/types.h> +#include <linux/list.h> +#include <crypto/scatterwalk.h> +#include <crypto/sha.h> +#include <crypto/mcryptd.h> +#include <crypto/crypto_wq.h> +#include <asm/byteorder.h> +#include <linux/hardirq.h> +#include <asm/fpu/api.h> +#include "sha512_mb_ctx.h" + +#define FLUSH_INTERVAL 1000 /* in usec */ + +static struct mcryptd_alg_state sha512_mb_alg_state; + +struct sha512_mb_ctx { + struct mcryptd_ahash *mcryptd_tfm; +}; + +static inline struct mcryptd_hash_request_ctx + *cast_hash_to_mcryptd_ctx(struct sha512_hash_ctx *hash_ctx) +{ + struct ahash_request *areq; + + areq = container_of((void *) hash_ctx, struct ahash_request, __ctx); + return container_of(areq, struct mcryptd_hash_request_ctx, areq); +} + +static inline struct ahash_request + *cast_mcryptd_ctx_to_req(struct mcryptd_hash_request_ctx *ctx) +{ + return container_of((void *) ctx, struct ahash_request, __ctx); +} + +static void req_ctx_init(struct mcryptd_hash_request_ctx *rctx, + struct ahash_request *areq) +{ + rctx->flag = HASH_UPDATE; +} + +static asmlinkage void (*sha512_job_mgr_init)(struct sha512_mb_mgr *state); +static asmlinkage struct job_sha512* (*sha512_job_mgr_submit) + (struct sha512_mb_mgr *state, + struct job_sha512 *job); +static asmlinkage struct job_sha512* (*sha512_job_mgr_flush) + (struct sha512_mb_mgr *state); +static asmlinkage struct job_sha512* (*sha512_job_mgr_get_comp_job) + (struct sha512_mb_mgr *state); + +inline uint32_t sha512_pad(uint8_t padblock[SHA512_BLOCK_SIZE * 2], + uint64_t total_len) +{ + uint32_t i = total_len & (SHA512_BLOCK_SIZE - 1); + + memset(&padblock[i], 0, SHA512_BLOCK_SIZE); + padblock[i] = 0x80; + + i += ((SHA512_BLOCK_SIZE - 1) & + (0 - (total_len + SHA512_PADLENGTHFIELD_SIZE + 1))) + + 1 + SHA512_PADLENGTHFIELD_SIZE; + +#if SHA512_PADLENGTHFIELD_SIZE == 16 + *((uint64_t *) &padblock[i - 16]) = 0; +#endif + + *((uint64_t *) &padblock[i - 8]) = cpu_to_be64(total_len << 3); + + /* Number of extra blocks to hash */ + return i >> SHA512_LOG2_BLOCK_SIZE; +} + +static struct sha512_hash_ctx *sha512_ctx_mgr_resubmit + (struct sha512_ctx_mgr *mgr, struct sha512_hash_ctx *ctx) +{ + while (ctx) { + if (ctx->status & HASH_CTX_STS_COMPLETE) { + /* Clear PROCESSING bit */ + ctx->status = HASH_CTX_STS_COMPLETE; + return ctx; + } + + /* + * If the extra blocks are empty, begin hashing what remains + * in the user's buffer. + */ + if (ctx->partial_block_buffer_length == 0 && + ctx->incoming_buffer_length) { + + const void *buffer = ctx->incoming_buffer; + uint32_t len = ctx->incoming_buffer_length; + uint32_t copy_len; + + /* + * Only entire blocks can be hashed. + * Copy remainder to extra blocks buffer. + */ + copy_len = len & (SHA512_BLOCK_SIZE-1); + + if (copy_len) { + len -= copy_len; + memcpy(ctx->partial_block_buffer, + ((const char *) buffer + len), + copy_len); + ctx->partial_block_buffer_length = copy_len; + } + + ctx->incoming_buffer_length = 0; + + /* len should be a multiple of the block size now */ + assert((len % SHA512_BLOCK_SIZE) == 0); + + /* Set len to the number of blocks to be hashed */ + len >>= SHA512_LOG2_BLOCK_SIZE; + + if (len) { + + ctx->job.buffer = (uint8_t *) buffer; + ctx->job.len = len; + ctx = (struct sha512_hash_ctx *) + sha512_job_mgr_submit(&mgr->mgr, + &ctx->job); + continue; + } + } + + /* + * If the extra blocks are not empty, then we are + * either on the last block(s) or we need more + * user input before continuing. + */ + if (ctx->status & HASH_CTX_STS_LAST) { + + uint8_t *buf = ctx->partial_block_buffer; + uint32_t n_extra_blocks = + sha512_pad(buf, ctx->total_length); + + ctx->status = (HASH_CTX_STS_PROCESSING | + HASH_CTX_STS_COMPLETE); + ctx->job.buffer = buf; + ctx->job.len = (uint32_t) n_extra_blocks; + ctx = (struct sha512_hash_ctx *) + sha512_job_mgr_submit(&mgr->mgr, &ctx->job); + continue; + } + + if (ctx) + ctx->status = HASH_CTX_STS_IDLE; + return ctx; + } + + return NULL; +} + +static struct sha512_hash_ctx + *sha512_ctx_mgr_get_comp_ctx(struct mcryptd_alg_cstate *cstate) +{ + /* + * If get_comp_job returns NULL, there are no jobs complete. + * If get_comp_job returns a job, verify that it is safe to return to + * the user. + * If it is not ready, resubmit the job to finish processing. + * If sha512_ctx_mgr_resubmit returned a job, it is ready to be + * returned. + * Otherwise, all jobs currently being managed by the hash_ctx_mgr + * still need processing. + */ + struct sha512_ctx_mgr *mgr; + struct sha512_hash_ctx *ctx; + unsigned long flags; + + mgr = cstate->mgr; + spin_lock_irqsave(&cstate->work_lock, flags); + ctx = (struct sha512_hash_ctx *) + sha512_job_mgr_get_comp_job(&mgr->mgr); + ctx = sha512_ctx_mgr_resubmit(mgr, ctx); + spin_unlock_irqrestore(&cstate->work_lock, flags); + return ctx; +} + +static void sha512_ctx_mgr_init(struct sha512_ctx_mgr *mgr) +{ + sha512_job_mgr_init(&mgr->mgr); +} + +static struct sha512_hash_ctx + *sha512_ctx_mgr_submit(struct mcryptd_alg_cstate *cstate, + struct sha512_hash_ctx *ctx, + const void *buffer, + uint32_t len, + int flags) +{ + struct sha512_ctx_mgr *mgr; + unsigned long irqflags; + + mgr = cstate->mgr; + spin_lock_irqsave(&cstate->work_lock, irqflags); + if (flags & ~(HASH_UPDATE | HASH_LAST)) { + /* User should not pass anything other than UPDATE or LAST */ + ctx->error = HASH_CTX_ERROR_INVALID_FLAGS; + goto unlock; + } + + if (ctx->status & HASH_CTX_STS_PROCESSING) { + /* Cannot submit to a currently processing job. */ + ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING; + goto unlock; + } + + if (ctx->status & HASH_CTX_STS_COMPLETE) { + /* Cannot update a finished job. */ + ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED; + goto unlock; + } + + /* + * If we made it here, there were no errors during this call to + * submit + */ + ctx->error = HASH_CTX_ERROR_NONE; + + /* Store buffer ptr info from user */ + ctx->incoming_buffer = buffer; + ctx->incoming_buffer_length = len; + + /* + * Store the user's request flags and mark this ctx as currently being + * processed. + */ + ctx->status = (flags & HASH_LAST) ? + (HASH_CTX_STS_PROCESSING | HASH_CTX_STS_LAST) : + HASH_CTX_STS_PROCESSING; + + /* Advance byte counter */ + ctx->total_length += len; + + /* + * If there is anything currently buffered in the extra blocks, + * append to it until it contains a whole block. + * Or if the user's buffer contains less than a whole block, + * append as much as possible to the extra block. + */ + if (ctx->partial_block_buffer_length || len < SHA512_BLOCK_SIZE) { + /* Compute how many bytes to copy from user buffer into extra + * block + */ + uint32_t copy_len = SHA512_BLOCK_SIZE - + ctx->partial_block_buffer_length; + if (len < copy_len) + copy_len = len; + + if (copy_len) { + /* Copy and update relevant pointers and counters */ + memcpy + (&ctx->partial_block_buffer[ctx->partial_block_buffer_length], + buffer, copy_len); + + ctx->partial_block_buffer_length += copy_len; + ctx->incoming_buffer = (const void *) + ((const char *)buffer + copy_len); + ctx->incoming_buffer_length = len - copy_len; + } + + /* The extra block should never contain more than 1 block + * here + */ + assert(ctx->partial_block_buffer_length <= SHA512_BLOCK_SIZE); + + /* If the extra block buffer contains exactly 1 block, it can + * be hashed. + */ + if (ctx->partial_block_buffer_length >= SHA512_BLOCK_SIZE) { + ctx->partial_block_buffer_length = 0; + + ctx->job.buffer = ctx->partial_block_buffer; + ctx->job.len = 1; + ctx = (struct sha512_hash_ctx *) + sha512_job_mgr_submit(&mgr->mgr, &ctx->job); + } + } + + ctx = sha512_ctx_mgr_resubmit(mgr, ctx); +unlock: + spin_unlock_irqrestore(&cstate->work_lock, irqflags); + return ctx; +} + +static struct sha512_hash_ctx *sha512_ctx_mgr_flush(struct mcryptd_alg_cstate *cstate) +{ + struct sha512_ctx_mgr *mgr; + struct sha512_hash_ctx *ctx; + unsigned long flags; + + mgr = cstate->mgr; + spin_lock_irqsave(&cstate->work_lock, flags); + while (1) { + ctx = (struct sha512_hash_ctx *) + sha512_job_mgr_flush(&mgr->mgr); + + /* If flush returned 0, there are no more jobs in flight. */ + if (!ctx) + break; + + /* + * If flush returned a job, resubmit the job to finish + * processing. + */ + ctx = sha512_ctx_mgr_resubmit(mgr, ctx); + + /* + * If sha512_ctx_mgr_resubmit returned a job, it is ready to + * be returned. Otherwise, all jobs currently being managed by + * the sha512_ctx_mgr still need processing. Loop. + */ + if (ctx) + break; + } + spin_unlock_irqrestore(&cstate->work_lock, flags); + return ctx; +} + +static int sha512_mb_init(struct ahash_request *areq) +{ + struct sha512_hash_ctx *sctx = ahash_request_ctx(areq); + + hash_ctx_init(sctx); + sctx->job.result_digest[0] = SHA512_H0; + sctx->job.result_digest[1] = SHA512_H1; + sctx->job.result_digest[2] = SHA512_H2; + sctx->job.result_digest[3] = SHA512_H3; + sctx->job.result_digest[4] = SHA512_H4; + sctx->job.result_digest[5] = SHA512_H5; + sctx->job.result_digest[6] = SHA512_H6; + sctx->job.result_digest[7] = SHA512_H7; + sctx->total_length = 0; + sctx->partial_block_buffer_length = 0; + sctx->status = HASH_CTX_STS_IDLE; + + return 0; +} + +static int sha512_mb_set_results(struct mcryptd_hash_request_ctx *rctx) +{ + int i; + struct sha512_hash_ctx *sctx = ahash_request_ctx(&rctx->areq); + __be64 *dst = (__be64 *) rctx->out; + + for (i = 0; i < 8; ++i) + dst[i] = cpu_to_be64(sctx->job.result_digest[i]); + + return 0; +} + +static int sha_finish_walk(struct mcryptd_hash_request_ctx **ret_rctx, + struct mcryptd_alg_cstate *cstate, bool flush) +{ + int flag = HASH_UPDATE; + int nbytes, err = 0; + struct mcryptd_hash_request_ctx *rctx = *ret_rctx; + struct sha512_hash_ctx *sha_ctx; + + /* more work ? */ + while (!(rctx->flag & HASH_DONE)) { + nbytes = crypto_ahash_walk_done(&rctx->walk, 0); + if (nbytes < 0) { + err = nbytes; + goto out; + } + /* check if the walk is done */ + if (crypto_ahash_walk_last(&rctx->walk)) { + rctx->flag |= HASH_DONE; + if (rctx->flag & HASH_FINAL) + flag |= HASH_LAST; + + } + sha_ctx = (struct sha512_hash_ctx *) + ahash_request_ctx(&rctx->areq); + kernel_fpu_begin(); + sha_ctx = sha512_ctx_mgr_submit(cstate, sha_ctx, + rctx->walk.data, nbytes, flag); + if (!sha_ctx) { + if (flush) + sha_ctx = sha512_ctx_mgr_flush(cstate); + } + kernel_fpu_end(); + if (sha_ctx) + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + else { + rctx = NULL; + goto out; + } + } + + /* copy the results */ + if (rctx->flag & HASH_FINAL) + sha512_mb_set_results(rctx); + +out: + *ret_rctx = rctx; + return err; +} + +static int sha_complete_job(struct mcryptd_hash_request_ctx *rctx, + struct mcryptd_alg_cstate *cstate, + int err) +{ + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha512_hash_ctx *sha_ctx; + struct mcryptd_hash_request_ctx *req_ctx; + int ret; + unsigned long flags; + + /* remove from work list */ + spin_lock_irqsave(&cstate->work_lock, flags); + list_del(&rctx->waiter); + spin_unlock_irqrestore(&cstate->work_lock, flags); + + if (irqs_disabled()) + rctx->complete(&req->base, err); + else { + local_bh_disable(); + rctx->complete(&req->base, err); + local_bh_enable(); + } + + /* check to see if there are other jobs that are done */ + sha_ctx = sha512_ctx_mgr_get_comp_ctx(cstate); + while (sha_ctx) { + req_ctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&req_ctx, cstate, false); + if (req_ctx) { + spin_lock_irqsave(&cstate->work_lock, flags); + list_del(&req_ctx->waiter); + spin_unlock_irqrestore(&cstate->work_lock, flags); + + req = cast_mcryptd_ctx_to_req(req_ctx); + if (irqs_disabled()) + req_ctx->complete(&req->base, ret); + else { + local_bh_disable(); + req_ctx->complete(&req->base, ret); + local_bh_enable(); + } + } + sha_ctx = sha512_ctx_mgr_get_comp_ctx(cstate); + } + + return 0; +} + +static void sha512_mb_add_list(struct mcryptd_hash_request_ctx *rctx, + struct mcryptd_alg_cstate *cstate) +{ + unsigned long next_flush; + unsigned long delay = usecs_to_jiffies(FLUSH_INTERVAL); + unsigned long flags; + + /* initialize tag */ + rctx->tag.arrival = jiffies; /* tag the arrival time */ + rctx->tag.seq_num = cstate->next_seq_num++; + next_flush = rctx->tag.arrival + delay; + rctx->tag.expire = next_flush; + + spin_lock_irqsave(&cstate->work_lock, flags); + list_add_tail(&rctx->waiter, &cstate->work_list); + spin_unlock_irqrestore(&cstate->work_lock, flags); + + mcryptd_arm_flusher(cstate, delay); +} + +static int sha512_mb_update(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, + areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha512_mb_alg_state.alg_cstate); + + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha512_hash_ctx *sha_ctx; + int ret = 0, nbytes; + + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + nbytes = crypto_ahash_walk_first(req, &rctx->walk); + + if (nbytes < 0) { + ret = nbytes; + goto done; + } + + if (crypto_ahash_walk_last(&rctx->walk)) + rctx->flag |= HASH_DONE; + + /* submit */ + sha_ctx = (struct sha512_hash_ctx *) ahash_request_ctx(areq); + sha512_mb_add_list(rctx, cstate); + kernel_fpu_begin(); + sha_ctx = sha512_ctx_mgr_submit(cstate, sha_ctx, rctx->walk.data, + nbytes, HASH_UPDATE); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha512_mb_finup(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, + areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha512_mb_alg_state.alg_cstate); + + struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx); + struct sha512_hash_ctx *sha_ctx; + int ret = 0, flag = HASH_UPDATE, nbytes; + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + nbytes = crypto_ahash_walk_first(req, &rctx->walk); + + if (nbytes < 0) { + ret = nbytes; + goto done; + } + + if (crypto_ahash_walk_last(&rctx->walk)) { + rctx->flag |= HASH_DONE; + flag = HASH_LAST; + } + + /* submit */ + rctx->flag |= HASH_FINAL; + sha_ctx = (struct sha512_hash_ctx *) ahash_request_ctx(areq); + sha512_mb_add_list(rctx, cstate); + + kernel_fpu_begin(); + sha_ctx = sha512_ctx_mgr_submit(cstate, sha_ctx, rctx->walk.data, + nbytes, flag); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha512_mb_final(struct ahash_request *areq) +{ + struct mcryptd_hash_request_ctx *rctx = + container_of(areq, struct mcryptd_hash_request_ctx, + areq); + struct mcryptd_alg_cstate *cstate = + this_cpu_ptr(sha512_mb_alg_state.alg_cstate); + + struct sha512_hash_ctx *sha_ctx; + int ret = 0; + u8 data; + + /* sanity check */ + if (rctx->tag.cpu != smp_processor_id()) { + pr_err("mcryptd error: cpu clash\n"); + goto done; + } + + /* need to init context */ + req_ctx_init(rctx, areq); + + rctx->flag |= HASH_DONE | HASH_FINAL; + + sha_ctx = (struct sha512_hash_ctx *) ahash_request_ctx(areq); + /* flag HASH_FINAL and 0 data size */ + sha512_mb_add_list(rctx, cstate); + kernel_fpu_begin(); + sha_ctx = sha512_ctx_mgr_submit(cstate, sha_ctx, &data, 0, HASH_LAST); + kernel_fpu_end(); + + /* check if anything is returned */ + if (!sha_ctx) + return -EINPROGRESS; + + if (sha_ctx->error) { + ret = sha_ctx->error; + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + goto done; + } + + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + ret = sha_finish_walk(&rctx, cstate, false); + if (!rctx) + return -EINPROGRESS; +done: + sha_complete_job(rctx, cstate, ret); + return ret; +} + +static int sha512_mb_export(struct ahash_request *areq, void *out) +{ + struct sha512_hash_ctx *sctx = ahash_request_ctx(areq); + + memcpy(out, sctx, sizeof(*sctx)); + + return 0; +} + +static int sha512_mb_import(struct ahash_request *areq, const void *in) +{ + struct sha512_hash_ctx *sctx = ahash_request_ctx(areq); + + memcpy(sctx, in, sizeof(*sctx)); + + return 0; +} + +static int sha512_mb_async_init_tfm(struct crypto_tfm *tfm) +{ + struct mcryptd_ahash *mcryptd_tfm; + struct sha512_mb_ctx *ctx = crypto_tfm_ctx(tfm); + struct mcryptd_hash_ctx *mctx; + + mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha512-mb", + CRYPTO_ALG_INTERNAL, + CRYPTO_ALG_INTERNAL); + if (IS_ERR(mcryptd_tfm)) + return PTR_ERR(mcryptd_tfm); + mctx = crypto_ahash_ctx(&mcryptd_tfm->base); + mctx->alg_state = &sha512_mb_alg_state; + ctx->mcryptd_tfm = mcryptd_tfm; + crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), + sizeof(struct ahash_request) + + crypto_ahash_reqsize(&mcryptd_tfm->base)); + + return 0; +} + +static void sha512_mb_async_exit_tfm(struct crypto_tfm *tfm) +{ + struct sha512_mb_ctx *ctx = crypto_tfm_ctx(tfm); + + mcryptd_free_ahash(ctx->mcryptd_tfm); +} + +static int sha512_mb_areq_init_tfm(struct crypto_tfm *tfm) +{ + crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), + sizeof(struct ahash_request) + + sizeof(struct sha512_hash_ctx)); + + return 0; +} + +static void sha512_mb_areq_exit_tfm(struct crypto_tfm *tfm) +{ + struct sha512_mb_ctx *ctx = crypto_tfm_ctx(tfm); + + mcryptd_free_ahash(ctx->mcryptd_tfm); +} + +static struct ahash_alg sha512_mb_areq_alg = { + .init = sha512_mb_init, + .update = sha512_mb_update, + .final = sha512_mb_final, + .finup = sha512_mb_finup, + .export = sha512_mb_export, + .import = sha512_mb_import, + .halg = { + .digestsize = SHA512_DIGEST_SIZE, + .statesize = sizeof(struct sha512_hash_ctx), + .base = { + .cra_name = "__sha512-mb", + .cra_driver_name = "__intel_sha512-mb", + .cra_priority = 100, + /* + * use ASYNC flag as some buffers in multi-buffer + * algo may not have completed before hashing thread + * sleep + */ + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_INTERNAL, + .cra_blocksize = SHA512_BLOCK_SIZE, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT + (sha512_mb_areq_alg.halg.base.cra_list), + .cra_init = sha512_mb_areq_init_tfm, + .cra_exit = sha512_mb_areq_exit_tfm, + .cra_ctxsize = sizeof(struct sha512_hash_ctx), + } + } +}; + +static int sha512_mb_async_init(struct ahash_request *req) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_init(mcryptd_req); +} + +static int sha512_mb_async_update(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_update(mcryptd_req); +} + +static int sha512_mb_async_finup(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_finup(mcryptd_req); +} + +static int sha512_mb_async_final(struct ahash_request *req) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_final(mcryptd_req); +} + +static int sha512_mb_async_digest(struct ahash_request *req) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_digest(mcryptd_req); +} + +static int sha512_mb_async_export(struct ahash_request *req, void *out) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + return crypto_ahash_export(mcryptd_req, out); +} + +static int sha512_mb_async_import(struct ahash_request *req, const void *in) +{ + struct ahash_request *mcryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm); + struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm; + struct crypto_ahash *child = mcryptd_ahash_child(mcryptd_tfm); + struct mcryptd_hash_request_ctx *rctx; + struct ahash_request *areq; + + memcpy(mcryptd_req, req, sizeof(*req)); + ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base); + rctx = ahash_request_ctx(mcryptd_req); + + areq = &rctx->areq; + + ahash_request_set_tfm(areq, child); + ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_SLEEP, + rctx->complete, req); + + return crypto_ahash_import(mcryptd_req, in); +} + +static struct ahash_alg sha512_mb_async_alg = { + .init = sha512_mb_async_init, + .update = sha512_mb_async_update, + .final = sha512_mb_async_final, + .finup = sha512_mb_async_finup, + .digest = sha512_mb_async_digest, + .export = sha512_mb_async_export, + .import = sha512_mb_async_import, + .halg = { + .digestsize = SHA512_DIGEST_SIZE, + .statesize = sizeof(struct sha512_hash_ctx), + .base = { + .cra_name = "sha512", + .cra_driver_name = "sha512_mb", + /* + * Low priority, since with few concurrent hash requests + * this is extremely slow due to the flush delay. Users + * whose workloads would benefit from this can request + * it explicitly by driver name, or can increase its + * priority at runtime using NETLINK_CRYPTO. + */ + .cra_priority = 50, + .cra_flags = CRYPTO_ALG_ASYNC, + .cra_blocksize = SHA512_BLOCK_SIZE, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT + (sha512_mb_async_alg.halg.base.cra_list), + .cra_init = sha512_mb_async_init_tfm, + .cra_exit = sha512_mb_async_exit_tfm, + .cra_ctxsize = sizeof(struct sha512_mb_ctx), + .cra_alignmask = 0, + }, + }, +}; + +static unsigned long sha512_mb_flusher(struct mcryptd_alg_cstate *cstate) +{ + struct mcryptd_hash_request_ctx *rctx; + unsigned long cur_time; + unsigned long next_flush = 0; + struct sha512_hash_ctx *sha_ctx; + + + cur_time = jiffies; + + while (!list_empty(&cstate->work_list)) { + rctx = list_entry(cstate->work_list.next, + struct mcryptd_hash_request_ctx, waiter); + if time_before(cur_time, rctx->tag.expire) + break; + kernel_fpu_begin(); + sha_ctx = (struct sha512_hash_ctx *) + sha512_ctx_mgr_flush(cstate); + kernel_fpu_end(); + if (!sha_ctx) { + pr_err("sha512_mb error: nothing got flushed for" + " non-empty list\n"); + break; + } + rctx = cast_hash_to_mcryptd_ctx(sha_ctx); + sha_finish_walk(&rctx, cstate, true); + sha_complete_job(rctx, cstate, 0); + } + + if (!list_empty(&cstate->work_list)) { + rctx = list_entry(cstate->work_list.next, + struct mcryptd_hash_request_ctx, waiter); + /* get the hash context and then flush time */ + next_flush = rctx->tag.expire; + mcryptd_arm_flusher(cstate, get_delay(next_flush)); + } + return next_flush; +} + +static int __init sha512_mb_mod_init(void) +{ + + int cpu; + int err; + struct mcryptd_alg_cstate *cpu_state; + + /* check for dependent cpu features */ + if (!boot_cpu_has(X86_FEATURE_AVX2) || + !boot_cpu_has(X86_FEATURE_BMI2)) + return -ENODEV; + + /* initialize multibuffer structures */ + sha512_mb_alg_state.alg_cstate = + alloc_percpu(struct mcryptd_alg_cstate); + + sha512_job_mgr_init = sha512_mb_mgr_init_avx2; + sha512_job_mgr_submit = sha512_mb_mgr_submit_avx2; + sha512_job_mgr_flush = sha512_mb_mgr_flush_avx2; + sha512_job_mgr_get_comp_job = sha512_mb_mgr_get_comp_job_avx2; + + if (!sha512_mb_alg_state.alg_cstate) + return -ENOMEM; + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha512_mb_alg_state.alg_cstate, cpu); + cpu_state->next_flush = 0; + cpu_state->next_seq_num = 0; + cpu_state->flusher_engaged = false; + INIT_DELAYED_WORK(&cpu_state->flush, mcryptd_flusher); + cpu_state->cpu = cpu; + cpu_state->alg_state = &sha512_mb_alg_state; + cpu_state->mgr = kzalloc(sizeof(struct sha512_ctx_mgr), + GFP_KERNEL); + if (!cpu_state->mgr) + goto err2; + sha512_ctx_mgr_init(cpu_state->mgr); + INIT_LIST_HEAD(&cpu_state->work_list); + spin_lock_init(&cpu_state->work_lock); + } + sha512_mb_alg_state.flusher = &sha512_mb_flusher; + + err = crypto_register_ahash(&sha512_mb_areq_alg); + if (err) + goto err2; + err = crypto_register_ahash(&sha512_mb_async_alg); + if (err) + goto err1; + + + return 0; +err1: + crypto_unregister_ahash(&sha512_mb_areq_alg); +err2: + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha512_mb_alg_state.alg_cstate, cpu); + kfree(cpu_state->mgr); + } + free_percpu(sha512_mb_alg_state.alg_cstate); + return -ENODEV; +} + +static void __exit sha512_mb_mod_fini(void) +{ + int cpu; + struct mcryptd_alg_cstate *cpu_state; + + crypto_unregister_ahash(&sha512_mb_async_alg); + crypto_unregister_ahash(&sha512_mb_areq_alg); + for_each_possible_cpu(cpu) { + cpu_state = per_cpu_ptr(sha512_mb_alg_state.alg_cstate, cpu); + kfree(cpu_state->mgr); + } + free_percpu(sha512_mb_alg_state.alg_cstate); +} + +module_init(sha512_mb_mod_init); +module_exit(sha512_mb_mod_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm, multi buffer accelerated"); + +MODULE_ALIAS("sha512"); diff --git a/arch/x86/crypto/sha512-mb/sha512_mb_ctx.h b/arch/x86/crypto/sha512-mb/sha512_mb_ctx.h new file mode 100644 index 000000000..e5c465bd8 --- /dev/null +++ b/arch/x86/crypto/sha512-mb/sha512_mb_ctx.h @@ -0,0 +1,128 @@ +/* + * Header file for multi buffer SHA512 context + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SHA_MB_CTX_INTERNAL_H +#define _SHA_MB_CTX_INTERNAL_H + +#include "sha512_mb_mgr.h" + +#define HASH_UPDATE 0x00 +#define HASH_LAST 0x01 +#define HASH_DONE 0x02 +#define HASH_FINAL 0x04 + +#define HASH_CTX_STS_IDLE 0x00 +#define HASH_CTX_STS_PROCESSING 0x01 +#define HASH_CTX_STS_LAST 0x02 +#define HASH_CTX_STS_COMPLETE 0x04 + +enum hash_ctx_error { + HASH_CTX_ERROR_NONE = 0, + HASH_CTX_ERROR_INVALID_FLAGS = -1, + HASH_CTX_ERROR_ALREADY_PROCESSING = -2, + HASH_CTX_ERROR_ALREADY_COMPLETED = -3, +}; + +#define hash_ctx_user_data(ctx) ((ctx)->user_data) +#define hash_ctx_digest(ctx) ((ctx)->job.result_digest) +#define hash_ctx_processing(ctx) ((ctx)->status & HASH_CTX_STS_PROCESSING) +#define hash_ctx_complete(ctx) ((ctx)->status == HASH_CTX_STS_COMPLETE) +#define hash_ctx_status(ctx) ((ctx)->status) +#define hash_ctx_error(ctx) ((ctx)->error) +#define hash_ctx_init(ctx) \ + do { \ + (ctx)->error = HASH_CTX_ERROR_NONE; \ + (ctx)->status = HASH_CTX_STS_COMPLETE; \ + } while (0) + +/* Hash Constants and Typedefs */ +#define SHA512_DIGEST_LENGTH 8 +#define SHA512_LOG2_BLOCK_SIZE 7 + +#define SHA512_PADLENGTHFIELD_SIZE 16 + +#ifdef SHA_MB_DEBUG +#define assert(expr) \ +do { \ + if (unlikely(!(expr))) { \ + printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \ + #expr, __FILE__, __func__, __LINE__); \ + } \ +} while (0) +#else +#define assert(expr) do {} while (0) +#endif + +struct sha512_ctx_mgr { + struct sha512_mb_mgr mgr; +}; + +/* typedef struct sha512_ctx_mgr sha512_ctx_mgr; */ + +struct sha512_hash_ctx { + /* Must be at struct offset 0 */ + struct job_sha512 job; + /* status flag */ + int status; + /* error flag */ + int error; + + uint64_t total_length; + const void *incoming_buffer; + uint32_t incoming_buffer_length; + uint8_t partial_block_buffer[SHA512_BLOCK_SIZE * 2]; + uint32_t partial_block_buffer_length; + void *user_data; +}; + +#endif diff --git a/arch/x86/crypto/sha512-mb/sha512_mb_mgr.h b/arch/x86/crypto/sha512-mb/sha512_mb_mgr.h new file mode 100644 index 000000000..178f17eef --- /dev/null +++ b/arch/x86/crypto/sha512-mb/sha512_mb_mgr.h @@ -0,0 +1,104 @@ +/* + * Header file for multi buffer SHA512 algorithm manager + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __SHA_MB_MGR_H +#define __SHA_MB_MGR_H + +#include <linux/types.h> + +#define NUM_SHA512_DIGEST_WORDS 8 + +enum job_sts {STS_UNKNOWN = 0, + STS_BEING_PROCESSED = 1, + STS_COMPLETED = 2, + STS_INTERNAL_ERROR = 3, + STS_ERROR = 4 +}; + +struct job_sha512 { + u8 *buffer; + u64 len; + u64 result_digest[NUM_SHA512_DIGEST_WORDS] __aligned(32); + enum job_sts status; + void *user_data; +}; + +struct sha512_args_x4 { + uint64_t digest[8][4]; + uint8_t *data_ptr[4]; +}; + +struct sha512_lane_data { + struct job_sha512 *job_in_lane; +}; + +struct sha512_mb_mgr { + struct sha512_args_x4 args; + + uint64_t lens[4]; + + /* each byte is index (0...7) of unused lanes */ + uint64_t unused_lanes; + /* byte 4 is set to FF as a flag */ + struct sha512_lane_data ldata[4]; +}; + +#define SHA512_MB_MGR_NUM_LANES_AVX2 4 + +void sha512_mb_mgr_init_avx2(struct sha512_mb_mgr *state); +struct job_sha512 *sha512_mb_mgr_submit_avx2(struct sha512_mb_mgr *state, + struct job_sha512 *job); +struct job_sha512 *sha512_mb_mgr_flush_avx2(struct sha512_mb_mgr *state); +struct job_sha512 *sha512_mb_mgr_get_comp_job_avx2(struct sha512_mb_mgr *state); + +#endif diff --git a/arch/x86/crypto/sha512-mb/sha512_mb_mgr_datastruct.S b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_datastruct.S new file mode 100644 index 000000000..cf2636d4c --- /dev/null +++ b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_datastruct.S @@ -0,0 +1,281 @@ +/* + * Header file for multi buffer SHA256 algorithm data structure + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +# Macros for defining data structures + +# Usage example + +#START_FIELDS # JOB_AES +### name size align +#FIELD _plaintext, 8, 8 # pointer to plaintext +#FIELD _ciphertext, 8, 8 # pointer to ciphertext +#FIELD _IV, 16, 8 # IV +#FIELD _keys, 8, 8 # pointer to keys +#FIELD _len, 4, 4 # length in bytes +#FIELD _status, 4, 4 # status enumeration +#FIELD _user_data, 8, 8 # pointer to user data +#UNION _union, size1, align1, \ +# size2, align2, \ +# size3, align3, \ +# ... +#END_FIELDS +#%assign _JOB_AES_size _FIELD_OFFSET +#%assign _JOB_AES_align _STRUCT_ALIGN + +######################################################################### + +# Alternate "struc-like" syntax: +# STRUCT job_aes2 +# RES_Q .plaintext, 1 +# RES_Q .ciphertext, 1 +# RES_DQ .IV, 1 +# RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN +# RES_U .union, size1, align1, \ +# size2, align2, \ +# ... +# ENDSTRUCT +# # Following only needed if nesting +# %assign job_aes2_size _FIELD_OFFSET +# %assign job_aes2_align _STRUCT_ALIGN +# +# RES_* macros take a name, a count and an optional alignment. +# The count in in terms of the base size of the macro, and the +# default alignment is the base size. +# The macros are: +# Macro Base size +# RES_B 1 +# RES_W 2 +# RES_D 4 +# RES_Q 8 +# RES_DQ 16 +# RES_Y 32 +# RES_Z 64 +# +# RES_U defines a union. It's arguments are a name and two or more +# pairs of "size, alignment" +# +# The two assigns are only needed if this structure is being nested +# within another. Even if the assigns are not done, one can still use +# STRUCT_NAME_size as the size of the structure. +# +# Note that for nesting, you still need to assign to STRUCT_NAME_size. +# +# The differences between this and using "struc" directly are that each +# type is implicitly aligned to its natural length (although this can be +# over-ridden with an explicit third parameter), and that the structure +# is padded at the end to its overall alignment. +# + +######################################################################### + +#ifndef _DATASTRUCT_ASM_ +#define _DATASTRUCT_ASM_ + +#define PTR_SZ 8 +#define SHA512_DIGEST_WORD_SIZE 8 +#define SHA512_MB_MGR_NUM_LANES_AVX2 4 +#define NUM_SHA512_DIGEST_WORDS 8 +#define SZ4 4*SHA512_DIGEST_WORD_SIZE +#define ROUNDS 80*SZ4 +#define SHA512_DIGEST_ROW_SIZE (SHA512_MB_MGR_NUM_LANES_AVX2 * 8) + +# START_FIELDS +.macro START_FIELDS + _FIELD_OFFSET = 0 + _STRUCT_ALIGN = 0 +.endm + +# FIELD name size align +.macro FIELD name size align + _FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1)) + \name = _FIELD_OFFSET + _FIELD_OFFSET = _FIELD_OFFSET + (\size) +.if (\align > _STRUCT_ALIGN) + _STRUCT_ALIGN = \align +.endif +.endm + +# END_FIELDS +.macro END_FIELDS + _FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1)) +.endm + +.macro STRUCT p1 +START_FIELDS +.struc \p1 +.endm + +.macro ENDSTRUCT + tmp = _FIELD_OFFSET + END_FIELDS + tmp = (_FIELD_OFFSET - ##tmp) +.if (tmp > 0) + .lcomm tmp +.endm + +## RES_int name size align +.macro RES_int p1 p2 p3 + name = \p1 + size = \p2 + align = .\p3 + + _FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1)) +.align align +.lcomm name size + _FIELD_OFFSET = _FIELD_OFFSET + (size) +.if (align > _STRUCT_ALIGN) + _STRUCT_ALIGN = align +.endif +.endm + +# macro RES_B name, size [, align] +.macro RES_B _name, _size, _align=1 +RES_int _name _size _align +.endm + +# macro RES_W name, size [, align] +.macro RES_W _name, _size, _align=2 +RES_int _name 2*(_size) _align +.endm + +# macro RES_D name, size [, align] +.macro RES_D _name, _size, _align=4 +RES_int _name 4*(_size) _align +.endm + +# macro RES_Q name, size [, align] +.macro RES_Q _name, _size, _align=8 +RES_int _name 8*(_size) _align +.endm + +# macro RES_DQ name, size [, align] +.macro RES_DQ _name, _size, _align=16 +RES_int _name 16*(_size) _align +.endm + +# macro RES_Y name, size [, align] +.macro RES_Y _name, _size, _align=32 +RES_int _name 32*(_size) _align +.endm + +# macro RES_Z name, size [, align] +.macro RES_Z _name, _size, _align=64 +RES_int _name 64*(_size) _align +.endm + +#endif + +################################################################### +### Define SHA512 Out Of Order Data Structures +################################################################### + +START_FIELDS # LANE_DATA +### name size align +FIELD _job_in_lane, 8, 8 # pointer to job object +END_FIELDS + + _LANE_DATA_size = _FIELD_OFFSET + _LANE_DATA_align = _STRUCT_ALIGN + +#################################################################### + +START_FIELDS # SHA512_ARGS_X4 +### name size align +FIELD _digest, 8*8*4, 4 # transposed digest +FIELD _data_ptr, 8*4, 8 # array of pointers to data +END_FIELDS + + _SHA512_ARGS_X4_size = _FIELD_OFFSET + _SHA512_ARGS_X4_align = _STRUCT_ALIGN + +##################################################################### + +START_FIELDS # MB_MGR +### name size align +FIELD _args, _SHA512_ARGS_X4_size, _SHA512_ARGS_X4_align +FIELD _lens, 8*4, 8 +FIELD _unused_lanes, 8, 8 +FIELD _ldata, _LANE_DATA_size*4, _LANE_DATA_align +END_FIELDS + + _MB_MGR_size = _FIELD_OFFSET + _MB_MGR_align = _STRUCT_ALIGN + +_args_digest = _args + _digest +_args_data_ptr = _args + _data_ptr + +####################################################################### + +####################################################################### +#### Define constants +####################################################################### + +#define STS_UNKNOWN 0 +#define STS_BEING_PROCESSED 1 +#define STS_COMPLETED 2 + +####################################################################### +#### Define JOB_SHA512 structure +####################################################################### + +START_FIELDS # JOB_SHA512 +### name size align +FIELD _buffer, 8, 8 # pointer to buffer +FIELD _len, 8, 8 # length in bytes +FIELD _result_digest, 8*8, 32 # Digest (output) +FIELD _status, 4, 4 +FIELD _user_data, 8, 8 +END_FIELDS + + _JOB_SHA512_size = _FIELD_OFFSET + _JOB_SHA512_align = _STRUCT_ALIGN diff --git a/arch/x86/crypto/sha512-mb/sha512_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_flush_avx2.S new file mode 100644 index 000000000..7c629caeb --- /dev/null +++ b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_flush_avx2.S @@ -0,0 +1,297 @@ +/* + * Flush routine for SHA512 multibuffer + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include "sha512_mb_mgr_datastruct.S" + +.extern sha512_x4_avx2 + +# LINUX register definitions +#define arg1 %rdi +#define arg2 %rsi + +# idx needs to be other than arg1, arg2, rbx, r12 +#define idx %rdx + +# Common definitions +#define state arg1 +#define job arg2 +#define len2 arg2 + +#define unused_lanes %rbx +#define lane_data %rbx +#define tmp2 %rbx + +#define job_rax %rax +#define tmp1 %rax +#define size_offset %rax +#define tmp %rax +#define start_offset %rax + +#define tmp3 arg1 + +#define extra_blocks arg2 +#define p arg2 + +#define tmp4 %r8 +#define lens0 %r8 + +#define lens1 %r9 +#define lens2 %r10 +#define lens3 %r11 + +.macro LABEL prefix n +\prefix\n\(): +.endm + +.macro JNE_SKIP i +jne skip_\i +.endm + +.altmacro +.macro SET_OFFSET _offset +offset = \_offset +.endm +.noaltmacro + +# JOB* sha512_mb_mgr_flush_avx2(MB_MGR *state) +# arg 1 : rcx : state +ENTRY(sha512_mb_mgr_flush_avx2) + FRAME_BEGIN + push %rbx + + # If bit (32+3) is set, then all lanes are empty + mov _unused_lanes(state), unused_lanes + bt $32+7, unused_lanes + jc return_null + + # find a lane with a non-null job + xor idx, idx + offset = (_ldata + 1*_LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne one(%rip), idx + offset = (_ldata + 2*_LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne two(%rip), idx + offset = (_ldata + 3*_LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) + cmovne three(%rip), idx + + # copy idx to empty lanes +copy_lane_data: + offset = (_args + _data_ptr) + mov offset(state,idx,8), tmp + + I = 0 +.rep 4 + offset = (_ldata + I * _LANE_DATA_size + _job_in_lane) + cmpq $0, offset(state) +.altmacro + JNE_SKIP %I + offset = (_args + _data_ptr + 8*I) + mov tmp, offset(state) + offset = (_lens + 8*I +4) + movl $0xFFFFFFFF, offset(state) +LABEL skip_ %I + I = (I+1) +.noaltmacro +.endr + + # Find min length + mov _lens + 0*8(state),lens0 + mov lens0,idx + mov _lens + 1*8(state),lens1 + cmp idx,lens1 + cmovb lens1,idx + mov _lens + 2*8(state),lens2 + cmp idx,lens2 + cmovb lens2,idx + mov _lens + 3*8(state),lens3 + cmp idx,lens3 + cmovb lens3,idx + mov idx,len2 + and $0xF,idx + and $~0xFF,len2 + jz len_is_0 + + sub len2, lens0 + sub len2, lens1 + sub len2, lens2 + sub len2, lens3 + shr $32,len2 + mov lens0, _lens + 0*8(state) + mov lens1, _lens + 1*8(state) + mov lens2, _lens + 2*8(state) + mov lens3, _lens + 3*8(state) + + # "state" and "args" are the same address, arg1 + # len is arg2 + call sha512_x4_avx2 + # state and idx are intact + +len_is_0: + # process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + mov _unused_lanes(state), unused_lanes + shl $8, unused_lanes + or idx, unused_lanes + mov unused_lanes, _unused_lanes(state) + + movl $0xFFFFFFFF, _lens+4(state, idx, 8) + + vmovq _args_digest+0*32(state, idx, 8), %xmm0 + vpinsrq $1, _args_digest+1*32(state, idx, 8), %xmm0, %xmm0 + vmovq _args_digest+2*32(state, idx, 8), %xmm1 + vpinsrq $1, _args_digest+3*32(state, idx, 8), %xmm1, %xmm1 + vmovq _args_digest+4*32(state, idx, 8), %xmm2 + vpinsrq $1, _args_digest+5*32(state, idx, 8), %xmm2, %xmm2 + vmovq _args_digest+6*32(state, idx, 8), %xmm3 + vpinsrq $1, _args_digest+7*32(state, idx, 8), %xmm3, %xmm3 + + vmovdqu %xmm0, _result_digest(job_rax) + vmovdqu %xmm1, _result_digest+1*16(job_rax) + vmovdqu %xmm2, _result_digest+2*16(job_rax) + vmovdqu %xmm3, _result_digest+3*16(job_rax) + +return: + pop %rbx + FRAME_END + ret + +return_null: + xor job_rax, job_rax + jmp return +ENDPROC(sha512_mb_mgr_flush_avx2) +.align 16 + +ENTRY(sha512_mb_mgr_get_comp_job_avx2) + push %rbx + + mov _unused_lanes(state), unused_lanes + bt $(32+7), unused_lanes + jc .return_null + + # Find min length + mov _lens(state),lens0 + mov lens0,idx + mov _lens+1*8(state),lens1 + cmp idx,lens1 + cmovb lens1,idx + mov _lens+2*8(state),lens2 + cmp idx,lens2 + cmovb lens2,idx + mov _lens+3*8(state),lens3 + cmp idx,lens3 + cmovb lens3,idx + test $~0xF,idx + jnz .return_null + and $0xF,idx + + #process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + mov _unused_lanes(state), unused_lanes + shl $8, unused_lanes + or idx, unused_lanes + mov unused_lanes, _unused_lanes(state) + + movl $0xFFFFFFFF, _lens+4(state, idx, 8) + + vmovq _args_digest(state, idx, 8), %xmm0 + vpinsrq $1, _args_digest+1*32(state, idx, 8), %xmm0, %xmm0 + vmovq _args_digest+2*32(state, idx, 8), %xmm1 + vpinsrq $1, _args_digest+3*32(state, idx, 8), %xmm1, %xmm1 + vmovq _args_digest+4*32(state, idx, 8), %xmm2 + vpinsrq $1, _args_digest+5*32(state, idx, 8), %xmm2, %xmm2 + vmovq _args_digest+6*32(state, idx, 8), %xmm3 + vpinsrq $1, _args_digest+7*32(state, idx, 8), %xmm3, %xmm3 + + vmovdqu %xmm0, _result_digest+0*16(job_rax) + vmovdqu %xmm1, _result_digest+1*16(job_rax) + vmovdqu %xmm2, _result_digest+2*16(job_rax) + vmovdqu %xmm3, _result_digest+3*16(job_rax) + + pop %rbx + + ret + +.return_null: + xor job_rax, job_rax + pop %rbx + ret +ENDPROC(sha512_mb_mgr_get_comp_job_avx2) + +.section .rodata.cst8.one, "aM", @progbits, 8 +.align 8 +one: +.quad 1 + +.section .rodata.cst8.two, "aM", @progbits, 8 +.align 8 +two: +.quad 2 + +.section .rodata.cst8.three, "aM", @progbits, 8 +.align 8 +three: +.quad 3 diff --git a/arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c new file mode 100644 index 000000000..d08805032 --- /dev/null +++ b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c @@ -0,0 +1,69 @@ +/* + * Initialization code for multi buffer SHA256 algorithm for AVX2 + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "sha512_mb_mgr.h" + +void sha512_mb_mgr_init_avx2(struct sha512_mb_mgr *state) +{ + unsigned int j; + + /* initially all lanes are unused */ + state->lens[0] = 0xFFFFFFFF00000000; + state->lens[1] = 0xFFFFFFFF00000001; + state->lens[2] = 0xFFFFFFFF00000002; + state->lens[3] = 0xFFFFFFFF00000003; + + state->unused_lanes = 0xFF03020100; + for (j = 0; j < 4; j++) + state->ldata[j].job_in_lane = NULL; +} diff --git a/arch/x86/crypto/sha512-mb/sha512_mb_mgr_submit_avx2.S b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_submit_avx2.S new file mode 100644 index 000000000..4ba709ba7 --- /dev/null +++ b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_submit_avx2.S @@ -0,0 +1,224 @@ +/* + * Buffer submit code for multi buffer SHA512 algorithm + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include "sha512_mb_mgr_datastruct.S" + +.extern sha512_x4_avx2 + +#define arg1 %rdi +#define arg2 %rsi + +#define idx %rdx +#define last_len %rdx + +#define size_offset %rcx +#define tmp2 %rcx + +# Common definitions +#define state arg1 +#define job arg2 +#define len2 arg2 +#define p2 arg2 + +#define p %r11 +#define start_offset %r11 + +#define unused_lanes %rbx + +#define job_rax %rax +#define len %rax + +#define lane %r12 +#define tmp3 %r12 +#define lens3 %r12 + +#define extra_blocks %r8 +#define lens0 %r8 + +#define tmp %r9 +#define lens1 %r9 + +#define lane_data %r10 +#define lens2 %r10 + +#define DWORD_len %eax + +# JOB* sha512_mb_mgr_submit_avx2(MB_MGR *state, JOB *job) +# arg 1 : rcx : state +# arg 2 : rdx : job +ENTRY(sha512_mb_mgr_submit_avx2) + FRAME_BEGIN + push %rbx + push %r12 + + mov _unused_lanes(state), unused_lanes + movzb %bl,lane + shr $8, unused_lanes + imul $_LANE_DATA_size, lane,lane_data + movl $STS_BEING_PROCESSED, _status(job) + lea _ldata(state, lane_data), lane_data + mov unused_lanes, _unused_lanes(state) + movl _len(job), DWORD_len + + mov job, _job_in_lane(lane_data) + movl DWORD_len,_lens+4(state , lane, 8) + + # Load digest words from result_digest + vmovdqu _result_digest+0*16(job), %xmm0 + vmovdqu _result_digest+1*16(job), %xmm1 + vmovdqu _result_digest+2*16(job), %xmm2 + vmovdqu _result_digest+3*16(job), %xmm3 + + vmovq %xmm0, _args_digest(state, lane, 8) + vpextrq $1, %xmm0, _args_digest+1*32(state , lane, 8) + vmovq %xmm1, _args_digest+2*32(state , lane, 8) + vpextrq $1, %xmm1, _args_digest+3*32(state , lane, 8) + vmovq %xmm2, _args_digest+4*32(state , lane, 8) + vpextrq $1, %xmm2, _args_digest+5*32(state , lane, 8) + vmovq %xmm3, _args_digest+6*32(state , lane, 8) + vpextrq $1, %xmm3, _args_digest+7*32(state , lane, 8) + + mov _buffer(job), p + mov p, _args_data_ptr(state, lane, 8) + + cmp $0xFF, unused_lanes + jne return_null + +start_loop: + + # Find min length + mov _lens+0*8(state),lens0 + mov lens0,idx + mov _lens+1*8(state),lens1 + cmp idx,lens1 + cmovb lens1, idx + mov _lens+2*8(state),lens2 + cmp idx,lens2 + cmovb lens2,idx + mov _lens+3*8(state),lens3 + cmp idx,lens3 + cmovb lens3,idx + mov idx,len2 + and $0xF,idx + and $~0xFF,len2 + jz len_is_0 + + sub len2,lens0 + sub len2,lens1 + sub len2,lens2 + sub len2,lens3 + shr $32,len2 + mov lens0, _lens + 0*8(state) + mov lens1, _lens + 1*8(state) + mov lens2, _lens + 2*8(state) + mov lens3, _lens + 3*8(state) + + # "state" and "args" are the same address, arg1 + # len is arg2 + call sha512_x4_avx2 + # state and idx are intact + +len_is_0: + + # process completed job "idx" + imul $_LANE_DATA_size, idx, lane_data + lea _ldata(state, lane_data), lane_data + + mov _job_in_lane(lane_data), job_rax + mov _unused_lanes(state), unused_lanes + movq $0, _job_in_lane(lane_data) + movl $STS_COMPLETED, _status(job_rax) + shl $8, unused_lanes + or idx, unused_lanes + mov unused_lanes, _unused_lanes(state) + + movl $0xFFFFFFFF,_lens+4(state,idx,8) + vmovq _args_digest+0*32(state , idx, 8), %xmm0 + vpinsrq $1, _args_digest+1*32(state , idx, 8), %xmm0, %xmm0 + vmovq _args_digest+2*32(state , idx, 8), %xmm1 + vpinsrq $1, _args_digest+3*32(state , idx, 8), %xmm1, %xmm1 + vmovq _args_digest+4*32(state , idx, 8), %xmm2 + vpinsrq $1, _args_digest+5*32(state , idx, 8), %xmm2, %xmm2 + vmovq _args_digest+6*32(state , idx, 8), %xmm3 + vpinsrq $1, _args_digest+7*32(state , idx, 8), %xmm3, %xmm3 + + vmovdqu %xmm0, _result_digest + 0*16(job_rax) + vmovdqu %xmm1, _result_digest + 1*16(job_rax) + vmovdqu %xmm2, _result_digest + 2*16(job_rax) + vmovdqu %xmm3, _result_digest + 3*16(job_rax) + +return: + pop %r12 + pop %rbx + FRAME_END + ret + +return_null: + xor job_rax, job_rax + jmp return +ENDPROC(sha512_mb_mgr_submit_avx2) + +/* UNUSED? +.section .rodata.cst16, "aM", @progbits, 16 +.align 16 +H0: .int 0x6a09e667 +H1: .int 0xbb67ae85 +H2: .int 0x3c6ef372 +H3: .int 0xa54ff53a +H4: .int 0x510e527f +H5: .int 0x9b05688c +H6: .int 0x1f83d9ab +H7: .int 0x5be0cd19 +*/ diff --git a/arch/x86/crypto/sha512-mb/sha512_x4_avx2.S b/arch/x86/crypto/sha512-mb/sha512_x4_avx2.S new file mode 100644 index 000000000..e22e90764 --- /dev/null +++ b/arch/x86/crypto/sha512-mb/sha512_x4_avx2.S @@ -0,0 +1,531 @@ +/* + * Multi-buffer SHA512 algorithm hash compute routine + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2016 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Megha Dey <megha.dey@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2016 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +# code to compute quad SHA512 using AVX2 +# use YMMs to tackle the larger digest size +# outer calling routine takes care of save and restore of XMM registers +# Logic designed/laid out by JDG + +# Function clobbers: rax, rcx, rdx, rbx, rsi, rdi, r9-r15; ymm0-15 +# Stack must be aligned to 32 bytes before call +# Linux clobbers: rax rbx rcx rsi r8 r9 r10 r11 r12 +# Linux preserves: rcx rdx rdi rbp r13 r14 r15 +# clobbers ymm0-15 + +#include <linux/linkage.h> +#include "sha512_mb_mgr_datastruct.S" + +arg1 = %rdi +arg2 = %rsi + +# Common definitions +STATE = arg1 +INP_SIZE = arg2 + +IDX = %rax +ROUND = %rbx +TBL = %r8 + +inp0 = %r9 +inp1 = %r10 +inp2 = %r11 +inp3 = %r12 + +a = %ymm0 +b = %ymm1 +c = %ymm2 +d = %ymm3 +e = %ymm4 +f = %ymm5 +g = %ymm6 +h = %ymm7 + +a0 = %ymm8 +a1 = %ymm9 +a2 = %ymm10 + +TT0 = %ymm14 +TT1 = %ymm13 +TT2 = %ymm12 +TT3 = %ymm11 +TT4 = %ymm10 +TT5 = %ymm9 + +T1 = %ymm14 +TMP = %ymm15 + +# Define stack usage +STACK_SPACE1 = SZ4*16 + NUM_SHA512_DIGEST_WORDS*SZ4 + 24 + +#define VMOVPD vmovupd +_digest = SZ4*16 + +# transpose r0, r1, r2, r3, t0, t1 +# "transpose" data in {r0..r3} using temps {t0..t3} +# Input looks like: {r0 r1 r2 r3} +# r0 = {a7 a6 a5 a4 a3 a2 a1 a0} +# r1 = {b7 b6 b5 b4 b3 b2 b1 b0} +# r2 = {c7 c6 c5 c4 c3 c2 c1 c0} +# r3 = {d7 d6 d5 d4 d3 d2 d1 d0} +# +# output looks like: {t0 r1 r0 r3} +# t0 = {d1 d0 c1 c0 b1 b0 a1 a0} +# r1 = {d3 d2 c3 c2 b3 b2 a3 a2} +# r0 = {d5 d4 c5 c4 b5 b4 a5 a4} +# r3 = {d7 d6 c7 c6 b7 b6 a7 a6} + +.macro TRANSPOSE r0 r1 r2 r3 t0 t1 + vshufps $0x44, \r1, \r0, \t0 # t0 = {b5 b4 a5 a4 b1 b0 a1 a0} + vshufps $0xEE, \r1, \r0, \r0 # r0 = {b7 b6 a7 a6 b3 b2 a3 a2} + vshufps $0x44, \r3, \r2, \t1 # t1 = {d5 d4 c5 c4 d1 d0 c1 c0} + vshufps $0xEE, \r3, \r2, \r2 # r2 = {d7 d6 c7 c6 d3 d2 c3 c2} + + vperm2f128 $0x20, \r2, \r0, \r1 # h6...a6 + vperm2f128 $0x31, \r2, \r0, \r3 # h2...a2 + vperm2f128 $0x31, \t1, \t0, \r0 # h5...a5 + vperm2f128 $0x20, \t1, \t0, \t0 # h1...a1 +.endm + +.macro ROTATE_ARGS +TMP_ = h +h = g +g = f +f = e +e = d +d = c +c = b +b = a +a = TMP_ +.endm + +# PRORQ reg, imm, tmp +# packed-rotate-right-double +# does a rotate by doing two shifts and an or +.macro _PRORQ reg imm tmp + vpsllq $(64-\imm),\reg,\tmp + vpsrlq $\imm,\reg, \reg + vpor \tmp,\reg, \reg +.endm + +# non-destructive +# PRORQ_nd reg, imm, tmp, src +.macro _PRORQ_nd reg imm tmp src + vpsllq $(64-\imm), \src, \tmp + vpsrlq $\imm, \src, \reg + vpor \tmp, \reg, \reg +.endm + +# PRORQ dst/src, amt +.macro PRORQ reg imm + _PRORQ \reg, \imm, TMP +.endm + +# PRORQ_nd dst, src, amt +.macro PRORQ_nd reg tmp imm + _PRORQ_nd \reg, \imm, TMP, \tmp +.endm + +#; arguments passed implicitly in preprocessor symbols i, a...h +.macro ROUND_00_15 _T1 i + PRORQ_nd a0, e, (18-14) # sig1: a0 = (e >> 4) + + vpxor g, f, a2 # ch: a2 = f^g + vpand e,a2, a2 # ch: a2 = (f^g)&e + vpxor g, a2, a2 # a2 = ch + + PRORQ_nd a1,e,41 # sig1: a1 = (e >> 25) + + offset = SZ4*(\i & 0xf) + vmovdqu \_T1,offset(%rsp) + vpaddq (TBL,ROUND,1), \_T1, \_T1 # T1 = W + K + vpxor e,a0, a0 # sig1: a0 = e ^ (e >> 5) + PRORQ a0, 14 # sig1: a0 = (e >> 6) ^ (e >> 11) + vpaddq a2, h, h # h = h + ch + PRORQ_nd a2,a,6 # sig0: a2 = (a >> 11) + vpaddq \_T1,h, h # h = h + ch + W + K + vpxor a1, a0, a0 # a0 = sigma1 + vmovdqu a,\_T1 + PRORQ_nd a1,a,39 # sig0: a1 = (a >> 22) + vpxor c, \_T1, \_T1 # maj: T1 = a^c + add $SZ4, ROUND # ROUND++ + vpand b, \_T1, \_T1 # maj: T1 = (a^c)&b + vpaddq a0, h, h + vpaddq h, d, d + vpxor a, a2, a2 # sig0: a2 = a ^ (a >> 11) + PRORQ a2,28 # sig0: a2 = (a >> 2) ^ (a >> 13) + vpxor a1, a2, a2 # a2 = sig0 + vpand c, a, a1 # maj: a1 = a&c + vpor \_T1, a1, a1 # a1 = maj + vpaddq a1, h, h # h = h + ch + W + K + maj + vpaddq a2, h, h # h = h + ch + W + K + maj + sigma0 + ROTATE_ARGS +.endm + + +#; arguments passed implicitly in preprocessor symbols i, a...h +.macro ROUND_16_XX _T1 i + vmovdqu SZ4*((\i-15)&0xf)(%rsp), \_T1 + vmovdqu SZ4*((\i-2)&0xf)(%rsp), a1 + vmovdqu \_T1, a0 + PRORQ \_T1,7 + vmovdqu a1, a2 + PRORQ a1,42 + vpxor a0, \_T1, \_T1 + PRORQ \_T1, 1 + vpxor a2, a1, a1 + PRORQ a1, 19 + vpsrlq $7, a0, a0 + vpxor a0, \_T1, \_T1 + vpsrlq $6, a2, a2 + vpxor a2, a1, a1 + vpaddq SZ4*((\i-16)&0xf)(%rsp), \_T1, \_T1 + vpaddq SZ4*((\i-7)&0xf)(%rsp), a1, a1 + vpaddq a1, \_T1, \_T1 + + ROUND_00_15 \_T1,\i +.endm + + +# void sha512_x4_avx2(void *STATE, const int INP_SIZE) +# arg 1 : STATE : pointer to input data +# arg 2 : INP_SIZE : size of data in blocks (assumed >= 1) +ENTRY(sha512_x4_avx2) + # general registers preserved in outer calling routine + # outer calling routine saves all the XMM registers + # save callee-saved clobbered registers to comply with C function ABI + push %r12 + push %r13 + push %r14 + push %r15 + + sub $STACK_SPACE1, %rsp + + # Load the pre-transposed incoming digest. + vmovdqu 0*SHA512_DIGEST_ROW_SIZE(STATE),a + vmovdqu 1*SHA512_DIGEST_ROW_SIZE(STATE),b + vmovdqu 2*SHA512_DIGEST_ROW_SIZE(STATE),c + vmovdqu 3*SHA512_DIGEST_ROW_SIZE(STATE),d + vmovdqu 4*SHA512_DIGEST_ROW_SIZE(STATE),e + vmovdqu 5*SHA512_DIGEST_ROW_SIZE(STATE),f + vmovdqu 6*SHA512_DIGEST_ROW_SIZE(STATE),g + vmovdqu 7*SHA512_DIGEST_ROW_SIZE(STATE),h + + lea K512_4(%rip),TBL + + # load the address of each of the 4 message lanes + # getting ready to transpose input onto stack + mov _data_ptr+0*PTR_SZ(STATE),inp0 + mov _data_ptr+1*PTR_SZ(STATE),inp1 + mov _data_ptr+2*PTR_SZ(STATE),inp2 + mov _data_ptr+3*PTR_SZ(STATE),inp3 + + xor IDX, IDX +lloop: + xor ROUND, ROUND + + # save old digest + vmovdqu a, _digest(%rsp) + vmovdqu b, _digest+1*SZ4(%rsp) + vmovdqu c, _digest+2*SZ4(%rsp) + vmovdqu d, _digest+3*SZ4(%rsp) + vmovdqu e, _digest+4*SZ4(%rsp) + vmovdqu f, _digest+5*SZ4(%rsp) + vmovdqu g, _digest+6*SZ4(%rsp) + vmovdqu h, _digest+7*SZ4(%rsp) + i = 0 +.rep 4 + vmovdqu PSHUFFLE_BYTE_FLIP_MASK(%rip), TMP + VMOVPD i*32(inp0, IDX), TT2 + VMOVPD i*32(inp1, IDX), TT1 + VMOVPD i*32(inp2, IDX), TT4 + VMOVPD i*32(inp3, IDX), TT3 + TRANSPOSE TT2, TT1, TT4, TT3, TT0, TT5 + vpshufb TMP, TT0, TT0 + vpshufb TMP, TT1, TT1 + vpshufb TMP, TT2, TT2 + vpshufb TMP, TT3, TT3 + ROUND_00_15 TT0,(i*4+0) + ROUND_00_15 TT1,(i*4+1) + ROUND_00_15 TT2,(i*4+2) + ROUND_00_15 TT3,(i*4+3) + i = (i+1) +.endr + add $128, IDX + + i = (i*4) + + jmp Lrounds_16_xx +.align 16 +Lrounds_16_xx: +.rep 16 + ROUND_16_XX T1, i + i = (i+1) +.endr + cmp $0xa00,ROUND + jb Lrounds_16_xx + + # add old digest + vpaddq _digest(%rsp), a, a + vpaddq _digest+1*SZ4(%rsp), b, b + vpaddq _digest+2*SZ4(%rsp), c, c + vpaddq _digest+3*SZ4(%rsp), d, d + vpaddq _digest+4*SZ4(%rsp), e, e + vpaddq _digest+5*SZ4(%rsp), f, f + vpaddq _digest+6*SZ4(%rsp), g, g + vpaddq _digest+7*SZ4(%rsp), h, h + + sub $1, INP_SIZE # unit is blocks + jne lloop + + # write back to memory (state object) the transposed digest + vmovdqu a, 0*SHA512_DIGEST_ROW_SIZE(STATE) + vmovdqu b, 1*SHA512_DIGEST_ROW_SIZE(STATE) + vmovdqu c, 2*SHA512_DIGEST_ROW_SIZE(STATE) + vmovdqu d, 3*SHA512_DIGEST_ROW_SIZE(STATE) + vmovdqu e, 4*SHA512_DIGEST_ROW_SIZE(STATE) + vmovdqu f, 5*SHA512_DIGEST_ROW_SIZE(STATE) + vmovdqu g, 6*SHA512_DIGEST_ROW_SIZE(STATE) + vmovdqu h, 7*SHA512_DIGEST_ROW_SIZE(STATE) + + # update input data pointers + add IDX, inp0 + mov inp0, _data_ptr+0*PTR_SZ(STATE) + add IDX, inp1 + mov inp1, _data_ptr+1*PTR_SZ(STATE) + add IDX, inp2 + mov inp2, _data_ptr+2*PTR_SZ(STATE) + add IDX, inp3 + mov inp3, _data_ptr+3*PTR_SZ(STATE) + + #;;;;;;;;;;;;;;; + #; Postamble + add $STACK_SPACE1, %rsp + # restore callee-saved clobbered registers + + pop %r15 + pop %r14 + pop %r13 + pop %r12 + + # outer calling routine restores XMM and other GP registers + ret +ENDPROC(sha512_x4_avx2) + +.section .rodata.K512_4, "a", @progbits +.align 64 +K512_4: + .octa 0x428a2f98d728ae22428a2f98d728ae22,\ + 0x428a2f98d728ae22428a2f98d728ae22 + .octa 0x7137449123ef65cd7137449123ef65cd,\ + 0x7137449123ef65cd7137449123ef65cd + .octa 0xb5c0fbcfec4d3b2fb5c0fbcfec4d3b2f,\ + 0xb5c0fbcfec4d3b2fb5c0fbcfec4d3b2f + .octa 0xe9b5dba58189dbbce9b5dba58189dbbc,\ + 0xe9b5dba58189dbbce9b5dba58189dbbc + .octa 0x3956c25bf348b5383956c25bf348b538,\ + 0x3956c25bf348b5383956c25bf348b538 + .octa 0x59f111f1b605d01959f111f1b605d019,\ + 0x59f111f1b605d01959f111f1b605d019 + .octa 0x923f82a4af194f9b923f82a4af194f9b,\ + 0x923f82a4af194f9b923f82a4af194f9b + .octa 0xab1c5ed5da6d8118ab1c5ed5da6d8118,\ + 0xab1c5ed5da6d8118ab1c5ed5da6d8118 + .octa 0xd807aa98a3030242d807aa98a3030242,\ + 0xd807aa98a3030242d807aa98a3030242 + .octa 0x12835b0145706fbe12835b0145706fbe,\ + 0x12835b0145706fbe12835b0145706fbe + .octa 0x243185be4ee4b28c243185be4ee4b28c,\ + 0x243185be4ee4b28c243185be4ee4b28c + .octa 0x550c7dc3d5ffb4e2550c7dc3d5ffb4e2,\ + 0x550c7dc3d5ffb4e2550c7dc3d5ffb4e2 + .octa 0x72be5d74f27b896f72be5d74f27b896f,\ + 0x72be5d74f27b896f72be5d74f27b896f + .octa 0x80deb1fe3b1696b180deb1fe3b1696b1,\ + 0x80deb1fe3b1696b180deb1fe3b1696b1 + .octa 0x9bdc06a725c712359bdc06a725c71235,\ + 0x9bdc06a725c712359bdc06a725c71235 + .octa 0xc19bf174cf692694c19bf174cf692694,\ + 0xc19bf174cf692694c19bf174cf692694 + .octa 0xe49b69c19ef14ad2e49b69c19ef14ad2,\ + 0xe49b69c19ef14ad2e49b69c19ef14ad2 + .octa 0xefbe4786384f25e3efbe4786384f25e3,\ + 0xefbe4786384f25e3efbe4786384f25e3 + .octa 0x0fc19dc68b8cd5b50fc19dc68b8cd5b5,\ + 0x0fc19dc68b8cd5b50fc19dc68b8cd5b5 + .octa 0x240ca1cc77ac9c65240ca1cc77ac9c65,\ + 0x240ca1cc77ac9c65240ca1cc77ac9c65 + .octa 0x2de92c6f592b02752de92c6f592b0275,\ + 0x2de92c6f592b02752de92c6f592b0275 + .octa 0x4a7484aa6ea6e4834a7484aa6ea6e483,\ + 0x4a7484aa6ea6e4834a7484aa6ea6e483 + .octa 0x5cb0a9dcbd41fbd45cb0a9dcbd41fbd4,\ + 0x5cb0a9dcbd41fbd45cb0a9dcbd41fbd4 + .octa 0x76f988da831153b576f988da831153b5,\ + 0x76f988da831153b576f988da831153b5 + .octa 0x983e5152ee66dfab983e5152ee66dfab,\ + 0x983e5152ee66dfab983e5152ee66dfab + .octa 0xa831c66d2db43210a831c66d2db43210,\ + 0xa831c66d2db43210a831c66d2db43210 + .octa 0xb00327c898fb213fb00327c898fb213f,\ + 0xb00327c898fb213fb00327c898fb213f + .octa 0xbf597fc7beef0ee4bf597fc7beef0ee4,\ + 0xbf597fc7beef0ee4bf597fc7beef0ee4 + .octa 0xc6e00bf33da88fc2c6e00bf33da88fc2,\ + 0xc6e00bf33da88fc2c6e00bf33da88fc2 + .octa 0xd5a79147930aa725d5a79147930aa725,\ + 0xd5a79147930aa725d5a79147930aa725 + .octa 0x06ca6351e003826f06ca6351e003826f,\ + 0x06ca6351e003826f06ca6351e003826f + .octa 0x142929670a0e6e70142929670a0e6e70,\ + 0x142929670a0e6e70142929670a0e6e70 + .octa 0x27b70a8546d22ffc27b70a8546d22ffc,\ + 0x27b70a8546d22ffc27b70a8546d22ffc + .octa 0x2e1b21385c26c9262e1b21385c26c926,\ + 0x2e1b21385c26c9262e1b21385c26c926 + .octa 0x4d2c6dfc5ac42aed4d2c6dfc5ac42aed,\ + 0x4d2c6dfc5ac42aed4d2c6dfc5ac42aed + .octa 0x53380d139d95b3df53380d139d95b3df,\ + 0x53380d139d95b3df53380d139d95b3df + .octa 0x650a73548baf63de650a73548baf63de,\ + 0x650a73548baf63de650a73548baf63de + .octa 0x766a0abb3c77b2a8766a0abb3c77b2a8,\ + 0x766a0abb3c77b2a8766a0abb3c77b2a8 + .octa 0x81c2c92e47edaee681c2c92e47edaee6,\ + 0x81c2c92e47edaee681c2c92e47edaee6 + .octa 0x92722c851482353b92722c851482353b,\ + 0x92722c851482353b92722c851482353b + .octa 0xa2bfe8a14cf10364a2bfe8a14cf10364,\ + 0xa2bfe8a14cf10364a2bfe8a14cf10364 + .octa 0xa81a664bbc423001a81a664bbc423001,\ + 0xa81a664bbc423001a81a664bbc423001 + .octa 0xc24b8b70d0f89791c24b8b70d0f89791,\ + 0xc24b8b70d0f89791c24b8b70d0f89791 + .octa 0xc76c51a30654be30c76c51a30654be30,\ + 0xc76c51a30654be30c76c51a30654be30 + .octa 0xd192e819d6ef5218d192e819d6ef5218,\ + 0xd192e819d6ef5218d192e819d6ef5218 + .octa 0xd69906245565a910d69906245565a910,\ + 0xd69906245565a910d69906245565a910 + .octa 0xf40e35855771202af40e35855771202a,\ + 0xf40e35855771202af40e35855771202a + .octa 0x106aa07032bbd1b8106aa07032bbd1b8,\ + 0x106aa07032bbd1b8106aa07032bbd1b8 + .octa 0x19a4c116b8d2d0c819a4c116b8d2d0c8,\ + 0x19a4c116b8d2d0c819a4c116b8d2d0c8 + .octa 0x1e376c085141ab531e376c085141ab53,\ + 0x1e376c085141ab531e376c085141ab53 + .octa 0x2748774cdf8eeb992748774cdf8eeb99,\ + 0x2748774cdf8eeb992748774cdf8eeb99 + .octa 0x34b0bcb5e19b48a834b0bcb5e19b48a8,\ + 0x34b0bcb5e19b48a834b0bcb5e19b48a8 + .octa 0x391c0cb3c5c95a63391c0cb3c5c95a63,\ + 0x391c0cb3c5c95a63391c0cb3c5c95a63 + .octa 0x4ed8aa4ae3418acb4ed8aa4ae3418acb,\ + 0x4ed8aa4ae3418acb4ed8aa4ae3418acb + .octa 0x5b9cca4f7763e3735b9cca4f7763e373,\ + 0x5b9cca4f7763e3735b9cca4f7763e373 + .octa 0x682e6ff3d6b2b8a3682e6ff3d6b2b8a3,\ + 0x682e6ff3d6b2b8a3682e6ff3d6b2b8a3 + .octa 0x748f82ee5defb2fc748f82ee5defb2fc,\ + 0x748f82ee5defb2fc748f82ee5defb2fc + .octa 0x78a5636f43172f6078a5636f43172f60,\ + 0x78a5636f43172f6078a5636f43172f60 + .octa 0x84c87814a1f0ab7284c87814a1f0ab72,\ + 0x84c87814a1f0ab7284c87814a1f0ab72 + .octa 0x8cc702081a6439ec8cc702081a6439ec,\ + 0x8cc702081a6439ec8cc702081a6439ec + .octa 0x90befffa23631e2890befffa23631e28,\ + 0x90befffa23631e2890befffa23631e28 + .octa 0xa4506cebde82bde9a4506cebde82bde9,\ + 0xa4506cebde82bde9a4506cebde82bde9 + .octa 0xbef9a3f7b2c67915bef9a3f7b2c67915,\ + 0xbef9a3f7b2c67915bef9a3f7b2c67915 + .octa 0xc67178f2e372532bc67178f2e372532b,\ + 0xc67178f2e372532bc67178f2e372532b + .octa 0xca273eceea26619cca273eceea26619c,\ + 0xca273eceea26619cca273eceea26619c + .octa 0xd186b8c721c0c207d186b8c721c0c207,\ + 0xd186b8c721c0c207d186b8c721c0c207 + .octa 0xeada7dd6cde0eb1eeada7dd6cde0eb1e,\ + 0xeada7dd6cde0eb1eeada7dd6cde0eb1e + .octa 0xf57d4f7fee6ed178f57d4f7fee6ed178,\ + 0xf57d4f7fee6ed178f57d4f7fee6ed178 + .octa 0x06f067aa72176fba06f067aa72176fba,\ + 0x06f067aa72176fba06f067aa72176fba + .octa 0x0a637dc5a2c898a60a637dc5a2c898a6,\ + 0x0a637dc5a2c898a60a637dc5a2c898a6 + .octa 0x113f9804bef90dae113f9804bef90dae,\ + 0x113f9804bef90dae113f9804bef90dae + .octa 0x1b710b35131c471b1b710b35131c471b,\ + 0x1b710b35131c471b1b710b35131c471b + .octa 0x28db77f523047d8428db77f523047d84,\ + 0x28db77f523047d8428db77f523047d84 + .octa 0x32caab7b40c7249332caab7b40c72493,\ + 0x32caab7b40c7249332caab7b40c72493 + .octa 0x3c9ebe0a15c9bebc3c9ebe0a15c9bebc,\ + 0x3c9ebe0a15c9bebc3c9ebe0a15c9bebc + .octa 0x431d67c49c100d4c431d67c49c100d4c,\ + 0x431d67c49c100d4c431d67c49c100d4c + .octa 0x4cc5d4becb3e42b64cc5d4becb3e42b6,\ + 0x4cc5d4becb3e42b64cc5d4becb3e42b6 + .octa 0x597f299cfc657e2a597f299cfc657e2a,\ + 0x597f299cfc657e2a597f299cfc657e2a + .octa 0x5fcb6fab3ad6faec5fcb6fab3ad6faec,\ + 0x5fcb6fab3ad6faec5fcb6fab3ad6faec + .octa 0x6c44198c4a4758176c44198c4a475817,\ + 0x6c44198c4a4758176c44198c4a475817 + +.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32 +.align 32 +PSHUFFLE_BYTE_FLIP_MASK: .octa 0x08090a0b0c0d0e0f0001020304050607 + .octa 0x18191a1b1c1d1e1f1011121314151617 diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S new file mode 100644 index 000000000..66bbd9058 --- /dev/null +++ b/arch/x86/crypto/sha512-ssse3-asm.S @@ -0,0 +1,424 @@ +######################################################################## +# Implement fast SHA-512 with SSSE3 instructions. (x86_64) +# +# Copyright (C) 2013 Intel Corporation. +# +# Authors: +# James Guilford <james.guilford@intel.com> +# Kirk Yap <kirk.s.yap@intel.com> +# David Cote <david.m.cote@intel.com> +# Tim Chen <tim.c.chen@linux.intel.com> +# +# This software is available to you under a choice of one of two +# licenses. You may choose to be licensed under the terms of the GNU +# General Public License (GPL) Version 2, available from the file +# COPYING in the main directory of this source tree, or the +# OpenIB.org BSD license below: +# +# Redistribution and use in source and binary forms, with or +# without modification, are permitted provided that the following +# conditions are met: +# +# - Redistributions of source code must retain the above +# copyright notice, this list of conditions and the following +# disclaimer. +# +# - Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials +# provided with the distribution. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# +######################################################################## +# +# This code is described in an Intel White-Paper: +# "Fast SHA-512 Implementations on Intel Architecture Processors" +# +# To find it, surf to http://www.intel.com/p/en_US/embedded +# and search for that title. +# +######################################################################## + +#include <linux/linkage.h> + +.text + +# Virtual Registers +# ARG1 +digest = %rdi +# ARG2 +msg = %rsi +# ARG3 +msglen = %rdx +T1 = %rcx +T2 = %r8 +a_64 = %r9 +b_64 = %r10 +c_64 = %r11 +d_64 = %r12 +e_64 = %r13 +f_64 = %r14 +g_64 = %r15 +h_64 = %rbx +tmp0 = %rax + +# Local variables (stack frame) + +W_SIZE = 80*8 +WK_SIZE = 2*8 +RSPSAVE_SIZE = 1*8 +GPRSAVE_SIZE = 5*8 + +frame_W = 0 +frame_WK = frame_W + W_SIZE +frame_RSPSAVE = frame_WK + WK_SIZE +frame_GPRSAVE = frame_RSPSAVE + RSPSAVE_SIZE +frame_size = frame_GPRSAVE + GPRSAVE_SIZE + +# Useful QWORD "arrays" for simpler memory references +# MSG, DIGEST, K_t, W_t are arrays +# WK_2(t) points to 1 of 2 qwords at frame.WK depdending on t being odd/even + +# Input message (arg1) +#define MSG(i) 8*i(msg) + +# Output Digest (arg2) +#define DIGEST(i) 8*i(digest) + +# SHA Constants (static mem) +#define K_t(i) 8*i+K512(%rip) + +# Message Schedule (stack frame) +#define W_t(i) 8*i+frame_W(%rsp) + +# W[t]+K[t] (stack frame) +#define WK_2(i) 8*((i%2))+frame_WK(%rsp) + +.macro RotateState + # Rotate symbols a..h right + TMP = h_64 + h_64 = g_64 + g_64 = f_64 + f_64 = e_64 + e_64 = d_64 + d_64 = c_64 + c_64 = b_64 + b_64 = a_64 + a_64 = TMP +.endm + +.macro SHA512_Round rnd + + # Compute Round %%t + mov f_64, T1 # T1 = f + mov e_64, tmp0 # tmp = e + xor g_64, T1 # T1 = f ^ g + ror $23, tmp0 # 41 # tmp = e ror 23 + and e_64, T1 # T1 = (f ^ g) & e + xor e_64, tmp0 # tmp = (e ror 23) ^ e + xor g_64, T1 # T1 = ((f ^ g) & e) ^ g = CH(e,f,g) + idx = \rnd + add WK_2(idx), T1 # W[t] + K[t] from message scheduler + ror $4, tmp0 # 18 # tmp = ((e ror 23) ^ e) ror 4 + xor e_64, tmp0 # tmp = (((e ror 23) ^ e) ror 4) ^ e + mov a_64, T2 # T2 = a + add h_64, T1 # T1 = CH(e,f,g) + W[t] + K[t] + h + ror $14, tmp0 # 14 # tmp = ((((e ror23)^e)ror4)^e)ror14 = S1(e) + add tmp0, T1 # T1 = CH(e,f,g) + W[t] + K[t] + S1(e) + mov a_64, tmp0 # tmp = a + xor c_64, T2 # T2 = a ^ c + and c_64, tmp0 # tmp = a & c + and b_64, T2 # T2 = (a ^ c) & b + xor tmp0, T2 # T2 = ((a ^ c) & b) ^ (a & c) = Maj(a,b,c) + mov a_64, tmp0 # tmp = a + ror $5, tmp0 # 39 # tmp = a ror 5 + xor a_64, tmp0 # tmp = (a ror 5) ^ a + add T1, d_64 # e(next_state) = d + T1 + ror $6, tmp0 # 34 # tmp = ((a ror 5) ^ a) ror 6 + xor a_64, tmp0 # tmp = (((a ror 5) ^ a) ror 6) ^ a + lea (T1, T2), h_64 # a(next_state) = T1 + Maj(a,b,c) + ror $28, tmp0 # 28 # tmp = ((((a ror5)^a)ror6)^a)ror28 = S0(a) + add tmp0, h_64 # a(next_state) = T1 + Maj(a,b,c) S0(a) + RotateState +.endm + +.macro SHA512_2Sched_2Round_sse rnd + + # Compute rounds t-2 and t-1 + # Compute message schedule QWORDS t and t+1 + + # Two rounds are computed based on the values for K[t-2]+W[t-2] and + # K[t-1]+W[t-1] which were previously stored at WK_2 by the message + # scheduler. + # The two new schedule QWORDS are stored at [W_t(%%t)] and [W_t(%%t+1)]. + # They are then added to their respective SHA512 constants at + # [K_t(%%t)] and [K_t(%%t+1)] and stored at dqword [WK_2(%%t)] + # For brievity, the comments following vectored instructions only refer to + # the first of a pair of QWORDS. + # Eg. XMM2=W[t-2] really means XMM2={W[t-2]|W[t-1]} + # The computation of the message schedule and the rounds are tightly + # stitched to take advantage of instruction-level parallelism. + # For clarity, integer instructions (for the rounds calculation) are indented + # by one tab. Vectored instructions (for the message scheduler) are indented + # by two tabs. + + mov f_64, T1 + idx = \rnd -2 + movdqa W_t(idx), %xmm2 # XMM2 = W[t-2] + xor g_64, T1 + and e_64, T1 + movdqa %xmm2, %xmm0 # XMM0 = W[t-2] + xor g_64, T1 + idx = \rnd + add WK_2(idx), T1 + idx = \rnd - 15 + movdqu W_t(idx), %xmm5 # XMM5 = W[t-15] + mov e_64, tmp0 + ror $23, tmp0 # 41 + movdqa %xmm5, %xmm3 # XMM3 = W[t-15] + xor e_64, tmp0 + ror $4, tmp0 # 18 + psrlq $61-19, %xmm0 # XMM0 = W[t-2] >> 42 + xor e_64, tmp0 + ror $14, tmp0 # 14 + psrlq $(8-7), %xmm3 # XMM3 = W[t-15] >> 1 + add tmp0, T1 + add h_64, T1 + pxor %xmm2, %xmm0 # XMM0 = (W[t-2] >> 42) ^ W[t-2] + mov a_64, T2 + xor c_64, T2 + pxor %xmm5, %xmm3 # XMM3 = (W[t-15] >> 1) ^ W[t-15] + and b_64, T2 + mov a_64, tmp0 + psrlq $(19-6), %xmm0 # XMM0 = ((W[t-2]>>42)^W[t-2])>>13 + and c_64, tmp0 + xor tmp0, T2 + psrlq $(7-1), %xmm3 # XMM3 = ((W[t-15]>>1)^W[t-15])>>6 + mov a_64, tmp0 + ror $5, tmp0 # 39 + pxor %xmm2, %xmm0 # XMM0 = (((W[t-2]>>42)^W[t-2])>>13)^W[t-2] + xor a_64, tmp0 + ror $6, tmp0 # 34 + pxor %xmm5, %xmm3 # XMM3 = (((W[t-15]>>1)^W[t-15])>>6)^W[t-15] + xor a_64, tmp0 + ror $28, tmp0 # 28 + psrlq $6, %xmm0 # XMM0 = ((((W[t-2]>>42)^W[t-2])>>13)^W[t-2])>>6 + add tmp0, T2 + add T1, d_64 + psrlq $1, %xmm3 # XMM3 = (((W[t-15]>>1)^W[t-15])>>6)^W[t-15]>>1 + lea (T1, T2), h_64 + RotateState + movdqa %xmm2, %xmm1 # XMM1 = W[t-2] + mov f_64, T1 + xor g_64, T1 + movdqa %xmm5, %xmm4 # XMM4 = W[t-15] + and e_64, T1 + xor g_64, T1 + psllq $(64-19)-(64-61) , %xmm1 # XMM1 = W[t-2] << 42 + idx = \rnd + 1 + add WK_2(idx), T1 + mov e_64, tmp0 + psllq $(64-1)-(64-8), %xmm4 # XMM4 = W[t-15] << 7 + ror $23, tmp0 # 41 + xor e_64, tmp0 + pxor %xmm2, %xmm1 # XMM1 = (W[t-2] << 42)^W[t-2] + ror $4, tmp0 # 18 + xor e_64, tmp0 + pxor %xmm5, %xmm4 # XMM4 = (W[t-15]<<7)^W[t-15] + ror $14, tmp0 # 14 + add tmp0, T1 + psllq $(64-61), %xmm1 # XMM1 = ((W[t-2] << 42)^W[t-2])<<3 + add h_64, T1 + mov a_64, T2 + psllq $(64-8), %xmm4 # XMM4 = ((W[t-15]<<7)^W[t-15])<<56 + xor c_64, T2 + and b_64, T2 + pxor %xmm1, %xmm0 # XMM0 = s1(W[t-2]) + mov a_64, tmp0 + and c_64, tmp0 + idx = \rnd - 7 + movdqu W_t(idx), %xmm1 # XMM1 = W[t-7] + xor tmp0, T2 + pxor %xmm4, %xmm3 # XMM3 = s0(W[t-15]) + mov a_64, tmp0 + paddq %xmm3, %xmm0 # XMM0 = s1(W[t-2]) + s0(W[t-15]) + ror $5, tmp0 # 39 + idx =\rnd-16 + paddq W_t(idx), %xmm0 # XMM0 = s1(W[t-2]) + s0(W[t-15]) + W[t-16] + xor a_64, tmp0 + paddq %xmm1, %xmm0 # XMM0 = s1(W[t-2]) + W[t-7] + s0(W[t-15]) + W[t-16] + ror $6, tmp0 # 34 + movdqa %xmm0, W_t(\rnd) # Store scheduled qwords + xor a_64, tmp0 + paddq K_t(\rnd), %xmm0 # Compute W[t]+K[t] + ror $28, tmp0 # 28 + idx = \rnd + movdqa %xmm0, WK_2(idx) # Store W[t]+K[t] for next rounds + add tmp0, T2 + add T1, d_64 + lea (T1, T2), h_64 + RotateState +.endm + +######################################################################## +# void sha512_transform_ssse3(void* D, const void* M, u64 L)# +# Purpose: Updates the SHA512 digest stored at D with the message stored in M. +# The size of the message pointed to by M must be an integer multiple of SHA512 +# message blocks. +# L is the message length in SHA512 blocks. +######################################################################## +ENTRY(sha512_transform_ssse3) + + cmp $0, msglen + je nowork + + # Allocate Stack Space + mov %rsp, %rax + sub $frame_size, %rsp + and $~(0x20 - 1), %rsp + mov %rax, frame_RSPSAVE(%rsp) + + # Save GPRs + mov %rbx, frame_GPRSAVE(%rsp) + mov %r12, frame_GPRSAVE +8*1(%rsp) + mov %r13, frame_GPRSAVE +8*2(%rsp) + mov %r14, frame_GPRSAVE +8*3(%rsp) + mov %r15, frame_GPRSAVE +8*4(%rsp) + +updateblock: + +# Load state variables + mov DIGEST(0), a_64 + mov DIGEST(1), b_64 + mov DIGEST(2), c_64 + mov DIGEST(3), d_64 + mov DIGEST(4), e_64 + mov DIGEST(5), f_64 + mov DIGEST(6), g_64 + mov DIGEST(7), h_64 + + t = 0 + .rept 80/2 + 1 + # (80 rounds) / (2 rounds/iteration) + (1 iteration) + # +1 iteration because the scheduler leads hashing by 1 iteration + .if t < 2 + # BSWAP 2 QWORDS + movdqa XMM_QWORD_BSWAP(%rip), %xmm1 + movdqu MSG(t), %xmm0 + pshufb %xmm1, %xmm0 # BSWAP + movdqa %xmm0, W_t(t) # Store Scheduled Pair + paddq K_t(t), %xmm0 # Compute W[t]+K[t] + movdqa %xmm0, WK_2(t) # Store into WK for rounds + .elseif t < 16 + # BSWAP 2 QWORDS# Compute 2 Rounds + movdqu MSG(t), %xmm0 + pshufb %xmm1, %xmm0 # BSWAP + SHA512_Round t-2 # Round t-2 + movdqa %xmm0, W_t(t) # Store Scheduled Pair + paddq K_t(t), %xmm0 # Compute W[t]+K[t] + SHA512_Round t-1 # Round t-1 + movdqa %xmm0, WK_2(t) # Store W[t]+K[t] into WK + .elseif t < 79 + # Schedule 2 QWORDS# Compute 2 Rounds + SHA512_2Sched_2Round_sse t + .else + # Compute 2 Rounds + SHA512_Round t-2 + SHA512_Round t-1 + .endif + t = t+2 + .endr + + # Update digest + add a_64, DIGEST(0) + add b_64, DIGEST(1) + add c_64, DIGEST(2) + add d_64, DIGEST(3) + add e_64, DIGEST(4) + add f_64, DIGEST(5) + add g_64, DIGEST(6) + add h_64, DIGEST(7) + + # Advance to next message block + add $16*8, msg + dec msglen + jnz updateblock + + # Restore GPRs + mov frame_GPRSAVE(%rsp), %rbx + mov frame_GPRSAVE +8*1(%rsp), %r12 + mov frame_GPRSAVE +8*2(%rsp), %r13 + mov frame_GPRSAVE +8*3(%rsp), %r14 + mov frame_GPRSAVE +8*4(%rsp), %r15 + + # Restore Stack Pointer + mov frame_RSPSAVE(%rsp), %rsp + +nowork: + ret +ENDPROC(sha512_transform_ssse3) + +######################################################################## +### Binary Data + +.section .rodata.cst16.XMM_QWORD_BSWAP, "aM", @progbits, 16 +.align 16 +# Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb. +XMM_QWORD_BSWAP: + .octa 0x08090a0b0c0d0e0f0001020304050607 + +# Mergeable 640-byte rodata section. This allows linker to merge the table +# with other, exactly the same 640-byte fragment of another rodata section +# (if such section exists). +.section .rodata.cst640.K512, "aM", @progbits, 640 +.align 64 +# K[t] used in SHA512 hashing +K512: + .quad 0x428a2f98d728ae22,0x7137449123ef65cd + .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc + .quad 0x3956c25bf348b538,0x59f111f1b605d019 + .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 + .quad 0xd807aa98a3030242,0x12835b0145706fbe + .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 + .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 + .quad 0x9bdc06a725c71235,0xc19bf174cf692694 + .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 + .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 + .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 + .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 + .quad 0x983e5152ee66dfab,0xa831c66d2db43210 + .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 + .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 + .quad 0x06ca6351e003826f,0x142929670a0e6e70 + .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 + .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df + .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 + .quad 0x81c2c92e47edaee6,0x92722c851482353b + .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 + .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 + .quad 0xd192e819d6ef5218,0xd69906245565a910 + .quad 0xf40e35855771202a,0x106aa07032bbd1b8 + .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 + .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 + .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb + .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 + .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 + .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec + .quad 0x90befffa23631e28,0xa4506cebde82bde9 + .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b + .quad 0xca273eceea26619c,0xd186b8c721c0c207 + .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 + .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 + .quad 0x113f9804bef90dae,0x1b710b35131c471b + .quad 0x28db77f523047d84,0x32caab7b40c72493 + .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c + .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a + .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c new file mode 100644 index 000000000..f1b811b60 --- /dev/null +++ b/arch/x86/crypto/sha512_ssse3_glue.c @@ -0,0 +1,349 @@ +/* + * Cryptographic API. + * + * Glue code for the SHA512 Secure Hash Algorithm assembler + * implementation using supplemental SSE3 / AVX / AVX2 instructions. + * + * This file is based on sha512_generic.c + * + * Copyright (C) 2013 Intel Corporation + * Author: Tim Chen <tim.c.chen@linux.intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/cryptohash.h> +#include <linux/types.h> +#include <crypto/sha.h> +#include <crypto/sha512_base.h> +#include <asm/fpu/api.h> + +#include <linux/string.h> + +asmlinkage void sha512_transform_ssse3(u64 *digest, const char *data, + u64 rounds); + +typedef void (sha512_transform_fn)(u64 *digest, const char *data, u64 rounds); + +static int sha512_update(struct shash_desc *desc, const u8 *data, + unsigned int len, sha512_transform_fn *sha512_xform) +{ + struct sha512_state *sctx = shash_desc_ctx(desc); + + if (!irq_fpu_usable() || + (sctx->count[0] % SHA512_BLOCK_SIZE) + len < SHA512_BLOCK_SIZE) + return crypto_sha512_update(desc, data, len); + + /* make sure casting to sha512_block_fn() is safe */ + BUILD_BUG_ON(offsetof(struct sha512_state, state) != 0); + + kernel_fpu_begin(); + sha512_base_do_update(desc, data, len, + (sha512_block_fn *)sha512_xform); + kernel_fpu_end(); + + return 0; +} + +static int sha512_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out, sha512_transform_fn *sha512_xform) +{ + if (!irq_fpu_usable()) + return crypto_sha512_finup(desc, data, len, out); + + kernel_fpu_begin(); + if (len) + sha512_base_do_update(desc, data, len, + (sha512_block_fn *)sha512_xform); + sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_xform); + kernel_fpu_end(); + + return sha512_base_finish(desc, out); +} + +static int sha512_ssse3_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha512_update(desc, data, len, sha512_transform_ssse3); +} + +static int sha512_ssse3_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha512_finup(desc, data, len, out, sha512_transform_ssse3); +} + +/* Add padding and return the message digest. */ +static int sha512_ssse3_final(struct shash_desc *desc, u8 *out) +{ + return sha512_ssse3_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha512_ssse3_algs[] = { { + .digestsize = SHA512_DIGEST_SIZE, + .init = sha512_base_init, + .update = sha512_ssse3_update, + .final = sha512_ssse3_final, + .finup = sha512_ssse3_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha512", + .cra_driver_name = "sha512-ssse3", + .cra_priority = 150, + .cra_blocksize = SHA512_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA384_DIGEST_SIZE, + .init = sha384_base_init, + .update = sha512_ssse3_update, + .final = sha512_ssse3_final, + .finup = sha512_ssse3_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha384", + .cra_driver_name = "sha384-ssse3", + .cra_priority = 150, + .cra_blocksize = SHA384_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static int register_sha512_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + return crypto_register_shashes(sha512_ssse3_algs, + ARRAY_SIZE(sha512_ssse3_algs)); + return 0; +} + +static void unregister_sha512_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + crypto_unregister_shashes(sha512_ssse3_algs, + ARRAY_SIZE(sha512_ssse3_algs)); +} + +#ifdef CONFIG_AS_AVX +asmlinkage void sha512_transform_avx(u64 *digest, const char *data, + u64 rounds); +static bool avx_usable(void) +{ + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) { + if (boot_cpu_has(X86_FEATURE_AVX)) + pr_info("AVX detected but unusable.\n"); + return false; + } + + return true; +} + +static int sha512_avx_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha512_update(desc, data, len, sha512_transform_avx); +} + +static int sha512_avx_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha512_finup(desc, data, len, out, sha512_transform_avx); +} + +/* Add padding and return the message digest. */ +static int sha512_avx_final(struct shash_desc *desc, u8 *out) +{ + return sha512_avx_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha512_avx_algs[] = { { + .digestsize = SHA512_DIGEST_SIZE, + .init = sha512_base_init, + .update = sha512_avx_update, + .final = sha512_avx_final, + .finup = sha512_avx_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha512", + .cra_driver_name = "sha512-avx", + .cra_priority = 160, + .cra_blocksize = SHA512_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA384_DIGEST_SIZE, + .init = sha384_base_init, + .update = sha512_avx_update, + .final = sha512_avx_final, + .finup = sha512_avx_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha384", + .cra_driver_name = "sha384-avx", + .cra_priority = 160, + .cra_blocksize = SHA384_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static int register_sha512_avx(void) +{ + if (avx_usable()) + return crypto_register_shashes(sha512_avx_algs, + ARRAY_SIZE(sha512_avx_algs)); + return 0; +} + +static void unregister_sha512_avx(void) +{ + if (avx_usable()) + crypto_unregister_shashes(sha512_avx_algs, + ARRAY_SIZE(sha512_avx_algs)); +} +#else +static inline int register_sha512_avx(void) { return 0; } +static inline void unregister_sha512_avx(void) { } +#endif + +#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX) +asmlinkage void sha512_transform_rorx(u64 *digest, const char *data, + u64 rounds); + +static int sha512_avx2_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha512_update(desc, data, len, sha512_transform_rorx); +} + +static int sha512_avx2_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha512_finup(desc, data, len, out, sha512_transform_rorx); +} + +/* Add padding and return the message digest. */ +static int sha512_avx2_final(struct shash_desc *desc, u8 *out) +{ + return sha512_avx2_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha512_avx2_algs[] = { { + .digestsize = SHA512_DIGEST_SIZE, + .init = sha512_base_init, + .update = sha512_avx2_update, + .final = sha512_avx2_final, + .finup = sha512_avx2_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha512", + .cra_driver_name = "sha512-avx2", + .cra_priority = 170, + .cra_blocksize = SHA512_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA384_DIGEST_SIZE, + .init = sha384_base_init, + .update = sha512_avx2_update, + .final = sha512_avx2_final, + .finup = sha512_avx2_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha384", + .cra_driver_name = "sha384-avx2", + .cra_priority = 170, + .cra_blocksize = SHA384_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static bool avx2_usable(void) +{ + if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) && + boot_cpu_has(X86_FEATURE_BMI2)) + return true; + + return false; +} + +static int register_sha512_avx2(void) +{ + if (avx2_usable()) + return crypto_register_shashes(sha512_avx2_algs, + ARRAY_SIZE(sha512_avx2_algs)); + return 0; +} + +static void unregister_sha512_avx2(void) +{ + if (avx2_usable()) + crypto_unregister_shashes(sha512_avx2_algs, + ARRAY_SIZE(sha512_avx2_algs)); +} +#else +static inline int register_sha512_avx2(void) { return 0; } +static inline void unregister_sha512_avx2(void) { } +#endif + +static int __init sha512_ssse3_mod_init(void) +{ + + if (register_sha512_ssse3()) + goto fail; + + if (register_sha512_avx()) { + unregister_sha512_ssse3(); + goto fail; + } + + if (register_sha512_avx2()) { + unregister_sha512_avx(); + unregister_sha512_ssse3(); + goto fail; + } + + return 0; +fail: + return -ENODEV; +} + +static void __exit sha512_ssse3_mod_fini(void) +{ + unregister_sha512_avx2(); + unregister_sha512_avx(); + unregister_sha512_ssse3(); +} + +module_init(sha512_ssse3_mod_init); +module_exit(sha512_ssse3_mod_fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm, Supplemental SSE3 accelerated"); + +MODULE_ALIAS_CRYPTO("sha512"); +MODULE_ALIAS_CRYPTO("sha512-ssse3"); +MODULE_ALIAS_CRYPTO("sha512-avx"); +MODULE_ALIAS_CRYPTO("sha512-avx2"); +MODULE_ALIAS_CRYPTO("sha384"); +MODULE_ALIAS_CRYPTO("sha384-ssse3"); +MODULE_ALIAS_CRYPTO("sha384-avx"); +MODULE_ALIAS_CRYPTO("sha384-avx2"); diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S new file mode 100644 index 000000000..73b471da3 --- /dev/null +++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S @@ -0,0 +1,471 @@ +/* + * Twofish Cipher 8-way parallel algorithm (AVX/x86_64) + * + * Copyright (C) 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> +#include <asm/frame.h> +#include "glue_helper-asm-avx.S" + +.file "twofish-avx-x86_64-asm_64.S" + +.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16 +.align 16 +.Lbswap128_mask: + .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 + +.section .rodata.cst16.xts_gf128mul_and_shl1_mask, "aM", @progbits, 16 +.align 16 +.Lxts_gf128mul_and_shl1_mask: + .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 + +.text + +/* structure of crypto context */ +#define s0 0 +#define s1 1024 +#define s2 2048 +#define s3 3072 +#define w 4096 +#define k 4128 + +/********************************************************************** + 8-way AVX twofish + **********************************************************************/ +#define CTX %rdi + +#define RA1 %xmm0 +#define RB1 %xmm1 +#define RC1 %xmm2 +#define RD1 %xmm3 + +#define RA2 %xmm4 +#define RB2 %xmm5 +#define RC2 %xmm6 +#define RD2 %xmm7 + +#define RX0 %xmm8 +#define RY0 %xmm9 + +#define RX1 %xmm10 +#define RY1 %xmm11 + +#define RK1 %xmm12 +#define RK2 %xmm13 + +#define RT %xmm14 +#define RR %xmm15 + +#define RID1 %r13 +#define RID1d %r13d +#define RID2 %rsi +#define RID2d %esi + +#define RGI1 %rdx +#define RGI1bl %dl +#define RGI1bh %dh +#define RGI2 %rcx +#define RGI2bl %cl +#define RGI2bh %ch + +#define RGI3 %rax +#define RGI3bl %al +#define RGI3bh %ah +#define RGI4 %rbx +#define RGI4bl %bl +#define RGI4bh %bh + +#define RGS1 %r8 +#define RGS1d %r8d +#define RGS2 %r9 +#define RGS2d %r9d +#define RGS3 %r10 +#define RGS3d %r10d + + +#define lookup_32bit(t0, t1, t2, t3, src, dst, interleave_op, il_reg) \ + movzbl src ## bl, RID1d; \ + movzbl src ## bh, RID2d; \ + shrq $16, src; \ + movl t0(CTX, RID1, 4), dst ## d; \ + movl t1(CTX, RID2, 4), RID2d; \ + movzbl src ## bl, RID1d; \ + xorl RID2d, dst ## d; \ + movzbl src ## bh, RID2d; \ + interleave_op(il_reg); \ + xorl t2(CTX, RID1, 4), dst ## d; \ + xorl t3(CTX, RID2, 4), dst ## d; + +#define dummy(d) /* do nothing */ + +#define shr_next(reg) \ + shrq $16, reg; + +#define G(gi1, gi2, x, t0, t1, t2, t3) \ + lookup_32bit(t0, t1, t2, t3, ##gi1, RGS1, shr_next, ##gi1); \ + lookup_32bit(t0, t1, t2, t3, ##gi2, RGS3, shr_next, ##gi2); \ + \ + lookup_32bit(t0, t1, t2, t3, ##gi1, RGS2, dummy, none); \ + shlq $32, RGS2; \ + orq RGS1, RGS2; \ + lookup_32bit(t0, t1, t2, t3, ##gi2, RGS1, dummy, none); \ + shlq $32, RGS1; \ + orq RGS1, RGS3; + +#define round_head_2(a, b, x1, y1, x2, y2) \ + vmovq b ## 1, RGI3; \ + vpextrq $1, b ## 1, RGI4; \ + \ + G(RGI1, RGI2, x1, s0, s1, s2, s3); \ + vmovq a ## 2, RGI1; \ + vpextrq $1, a ## 2, RGI2; \ + vmovq RGS2, x1; \ + vpinsrq $1, RGS3, x1, x1; \ + \ + G(RGI3, RGI4, y1, s1, s2, s3, s0); \ + vmovq b ## 2, RGI3; \ + vpextrq $1, b ## 2, RGI4; \ + vmovq RGS2, y1; \ + vpinsrq $1, RGS3, y1, y1; \ + \ + G(RGI1, RGI2, x2, s0, s1, s2, s3); \ + vmovq RGS2, x2; \ + vpinsrq $1, RGS3, x2, x2; \ + \ + G(RGI3, RGI4, y2, s1, s2, s3, s0); \ + vmovq RGS2, y2; \ + vpinsrq $1, RGS3, y2, y2; + +#define encround_tail(a, b, c, d, x, y, prerotate) \ + vpaddd x, y, x; \ + vpaddd x, RK1, RT;\ + prerotate(b); \ + vpxor RT, c, c; \ + vpaddd y, x, y; \ + vpaddd y, RK2, y; \ + vpsrld $1, c, RT; \ + vpslld $(32 - 1), c, c; \ + vpor c, RT, c; \ + vpxor d, y, d; \ + +#define decround_tail(a, b, c, d, x, y, prerotate) \ + vpaddd x, y, x; \ + vpaddd x, RK1, RT;\ + prerotate(a); \ + vpxor RT, c, c; \ + vpaddd y, x, y; \ + vpaddd y, RK2, y; \ + vpxor d, y, d; \ + vpsrld $1, d, y; \ + vpslld $(32 - 1), d, d; \ + vpor d, y, d; \ + +#define rotate_1l(x) \ + vpslld $1, x, RR; \ + vpsrld $(32 - 1), x, x; \ + vpor x, RR, x; + +#define preload_rgi(c) \ + vmovq c, RGI1; \ + vpextrq $1, c, RGI2; + +#define encrypt_round(n, a, b, c, d, preload, prerotate) \ + vbroadcastss (k+4*(2*(n)))(CTX), RK1; \ + vbroadcastss (k+4*(2*(n)+1))(CTX), RK2; \ + round_head_2(a, b, RX0, RY0, RX1, RY1); \ + encround_tail(a ## 1, b ## 1, c ## 1, d ## 1, RX0, RY0, prerotate); \ + preload(c ## 1); \ + encround_tail(a ## 2, b ## 2, c ## 2, d ## 2, RX1, RY1, prerotate); + +#define decrypt_round(n, a, b, c, d, preload, prerotate) \ + vbroadcastss (k+4*(2*(n)))(CTX), RK1; \ + vbroadcastss (k+4*(2*(n)+1))(CTX), RK2; \ + round_head_2(a, b, RX0, RY0, RX1, RY1); \ + decround_tail(a ## 1, b ## 1, c ## 1, d ## 1, RX0, RY0, prerotate); \ + preload(c ## 1); \ + decround_tail(a ## 2, b ## 2, c ## 2, d ## 2, RX1, RY1, prerotate); + +#define encrypt_cycle(n) \ + encrypt_round((2*n), RA, RB, RC, RD, preload_rgi, rotate_1l); \ + encrypt_round(((2*n) + 1), RC, RD, RA, RB, preload_rgi, rotate_1l); + +#define encrypt_cycle_last(n) \ + encrypt_round((2*n), RA, RB, RC, RD, preload_rgi, rotate_1l); \ + encrypt_round(((2*n) + 1), RC, RD, RA, RB, dummy, dummy); + +#define decrypt_cycle(n) \ + decrypt_round(((2*n) + 1), RC, RD, RA, RB, preload_rgi, rotate_1l); \ + decrypt_round((2*n), RA, RB, RC, RD, preload_rgi, rotate_1l); + +#define decrypt_cycle_last(n) \ + decrypt_round(((2*n) + 1), RC, RD, RA, RB, preload_rgi, rotate_1l); \ + decrypt_round((2*n), RA, RB, RC, RD, dummy, dummy); + +#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + vpunpckldq x1, x0, t0; \ + vpunpckhdq x1, x0, t2; \ + vpunpckldq x3, x2, t1; \ + vpunpckhdq x3, x2, x3; \ + \ + vpunpcklqdq t1, t0, x0; \ + vpunpckhqdq t1, t0, x1; \ + vpunpcklqdq x3, t2, x2; \ + vpunpckhqdq x3, t2, x3; + +#define inpack_blocks(x0, x1, x2, x3, wkey, t0, t1, t2) \ + vpxor x0, wkey, x0; \ + vpxor x1, wkey, x1; \ + vpxor x2, wkey, x2; \ + vpxor x3, wkey, x3; \ + \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) + +#define outunpack_blocks(x0, x1, x2, x3, wkey, t0, t1, t2) \ + transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ + \ + vpxor x0, wkey, x0; \ + vpxor x1, wkey, x1; \ + vpxor x2, wkey, x2; \ + vpxor x3, wkey, x3; + +.align 8 +__twofish_enc_blk8: + /* input: + * %rdi: ctx, CTX + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks + * output: + * RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2: encrypted blocks + */ + + vmovdqu w(CTX), RK1; + + pushq %r13; + pushq %rbx; + pushq %rcx; + + inpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2); + preload_rgi(RA1); + rotate_1l(RD1); + inpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2); + rotate_1l(RD2); + + encrypt_cycle(0); + encrypt_cycle(1); + encrypt_cycle(2); + encrypt_cycle(3); + encrypt_cycle(4); + encrypt_cycle(5); + encrypt_cycle(6); + encrypt_cycle_last(7); + + vmovdqu (w+4*4)(CTX), RK1; + + popq %rcx; + popq %rbx; + popq %r13; + + outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2); + outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2); + + ret; +ENDPROC(__twofish_enc_blk8) + +.align 8 +__twofish_dec_blk8: + /* input: + * %rdi: ctx, CTX + * RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2: encrypted blocks + * output: + * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: decrypted blocks + */ + + vmovdqu (w+4*4)(CTX), RK1; + + pushq %r13; + pushq %rbx; + + inpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2); + preload_rgi(RC1); + rotate_1l(RA1); + inpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2); + rotate_1l(RA2); + + decrypt_cycle(7); + decrypt_cycle(6); + decrypt_cycle(5); + decrypt_cycle(4); + decrypt_cycle(3); + decrypt_cycle(2); + decrypt_cycle(1); + decrypt_cycle_last(0); + + vmovdqu (w)(CTX), RK1; + + popq %rbx; + popq %r13; + + outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2); + outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2); + + ret; +ENDPROC(__twofish_dec_blk8) + +ENTRY(twofish_ecb_enc_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + movq %rsi, %r11; + + load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + call __twofish_enc_blk8; + + store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2); + + FRAME_END + ret; +ENDPROC(twofish_ecb_enc_8way) + +ENTRY(twofish_ecb_dec_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + movq %rsi, %r11; + + load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2); + + call __twofish_dec_blk8; + + store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + FRAME_END + ret; +ENDPROC(twofish_ecb_dec_8way) + +ENTRY(twofish_cbc_dec_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + */ + FRAME_BEGIN + + pushq %r12; + + movq %rsi, %r11; + movq %rdx, %r12; + + load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2); + + call __twofish_dec_blk8; + + store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + popq %r12; + + FRAME_END + ret; +ENDPROC(twofish_cbc_dec_8way) + +ENTRY(twofish_ctr_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (little endian, 128bit) + */ + FRAME_BEGIN + + pushq %r12; + + movq %rsi, %r11; + movq %rdx, %r12; + + load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2, + RD2, RX0, RX1, RY0); + + call __twofish_enc_blk8; + + store_ctr_8way(%r12, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2); + + popq %r12; + + FRAME_END + ret; +ENDPROC(twofish_ctr_8way) + +ENTRY(twofish_xts_enc_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + FRAME_BEGIN + + movq %rsi, %r11; + + /* regs <= src, dst <= IVs, regs <= regs xor IVs */ + load_xts_8way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2, + RX0, RX1, RY0, .Lxts_gf128mul_and_shl1_mask); + + call __twofish_enc_blk8; + + /* dst <= regs xor IVs(in dst) */ + store_xts_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2); + + FRAME_END + ret; +ENDPROC(twofish_xts_enc_8way) + +ENTRY(twofish_xts_dec_8way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + FRAME_BEGIN + + movq %rsi, %r11; + + /* regs <= src, dst <= IVs, regs <= regs xor IVs */ + load_xts_8way(%rcx, %rdx, %rsi, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2, + RX0, RX1, RY0, .Lxts_gf128mul_and_shl1_mask); + + call __twofish_dec_blk8; + + /* dst <= regs xor IVs(in dst) */ + store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); + + FRAME_END + ret; +ENDPROC(twofish_xts_dec_8way) diff --git a/arch/x86/crypto/twofish-i586-asm_32.S b/arch/x86/crypto/twofish-i586-asm_32.S new file mode 100644 index 000000000..694ea4587 --- /dev/null +++ b/arch/x86/crypto/twofish-i586-asm_32.S @@ -0,0 +1,334 @@ +/*************************************************************************** +* Copyright (C) 2006 by Joachim Fritschi, <jfritschi@freenet.de> * +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +* This program is distributed in the hope that it will be useful, * +* but WITHOUT ANY WARRANTY; without even the implied warranty of * +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * +* GNU General Public License for more details. * +* * +* You should have received a copy of the GNU General Public License * +* along with this program; if not, write to the * +* Free Software Foundation, Inc., * +* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * +***************************************************************************/ + +.file "twofish-i586-asm.S" +.text + +#include <linux/linkage.h> +#include <asm/asm-offsets.h> + +/* return address at 0 */ + +#define in_blk 12 /* input byte array address parameter*/ +#define out_blk 8 /* output byte array address parameter*/ +#define ctx 4 /* Twofish context structure */ + +#define a_offset 0 +#define b_offset 4 +#define c_offset 8 +#define d_offset 12 + +/* Structure of the crypto context struct*/ + +#define s0 0 /* S0 Array 256 Words each */ +#define s1 1024 /* S1 Array */ +#define s2 2048 /* S2 Array */ +#define s3 3072 /* S3 Array */ +#define w 4096 /* 8 whitening keys (word) */ +#define k 4128 /* key 1-32 ( word ) */ + +/* define a few register aliases to allow macro substitution */ + +#define R0D %eax +#define R0B %al +#define R0H %ah + +#define R1D %ebx +#define R1B %bl +#define R1H %bh + +#define R2D %ecx +#define R2B %cl +#define R2H %ch + +#define R3D %edx +#define R3B %dl +#define R3H %dh + + +/* performs input whitening */ +#define input_whitening(src,context,offset)\ + xor w+offset(context), src; + +/* performs input whitening */ +#define output_whitening(src,context,offset)\ + xor w+16+offset(context), src; + +/* + * a input register containing a (rotated 16) + * b input register containing b + * c input register containing c + * d input register containing d (already rol $1) + * operations on a and b are interleaved to increase performance + */ +#define encrypt_round(a,b,c,d,round)\ + push d ## D;\ + movzx b ## B, %edi;\ + mov s1(%ebp,%edi,4),d ## D;\ + movzx a ## B, %edi;\ + mov s2(%ebp,%edi,4),%esi;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor s2(%ebp,%edi,4),d ## D;\ + movzx a ## H, %edi;\ + ror $16, a ## D;\ + xor s3(%ebp,%edi,4),%esi;\ + movzx b ## B, %edi;\ + xor s3(%ebp,%edi,4),d ## D;\ + movzx a ## B, %edi;\ + xor (%ebp,%edi,4), %esi;\ + movzx b ## H, %edi;\ + ror $15, b ## D;\ + xor (%ebp,%edi,4), d ## D;\ + movzx a ## H, %edi;\ + xor s1(%ebp,%edi,4),%esi;\ + pop %edi;\ + add d ## D, %esi;\ + add %esi, d ## D;\ + add k+round(%ebp), %esi;\ + xor %esi, c ## D;\ + rol $15, c ## D;\ + add k+4+round(%ebp),d ## D;\ + xor %edi, d ## D; + +/* + * a input register containing a (rotated 16) + * b input register containing b + * c input register containing c + * d input register containing d (already rol $1) + * operations on a and b are interleaved to increase performance + * last round has different rotations for the output preparation + */ +#define encrypt_last_round(a,b,c,d,round)\ + push d ## D;\ + movzx b ## B, %edi;\ + mov s1(%ebp,%edi,4),d ## D;\ + movzx a ## B, %edi;\ + mov s2(%ebp,%edi,4),%esi;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor s2(%ebp,%edi,4),d ## D;\ + movzx a ## H, %edi;\ + ror $16, a ## D;\ + xor s3(%ebp,%edi,4),%esi;\ + movzx b ## B, %edi;\ + xor s3(%ebp,%edi,4),d ## D;\ + movzx a ## B, %edi;\ + xor (%ebp,%edi,4), %esi;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor (%ebp,%edi,4), d ## D;\ + movzx a ## H, %edi;\ + xor s1(%ebp,%edi,4),%esi;\ + pop %edi;\ + add d ## D, %esi;\ + add %esi, d ## D;\ + add k+round(%ebp), %esi;\ + xor %esi, c ## D;\ + ror $1, c ## D;\ + add k+4+round(%ebp),d ## D;\ + xor %edi, d ## D; + +/* + * a input register containing a + * b input register containing b (rotated 16) + * c input register containing c + * d input register containing d (already rol $1) + * operations on a and b are interleaved to increase performance + */ +#define decrypt_round(a,b,c,d,round)\ + push c ## D;\ + movzx a ## B, %edi;\ + mov (%ebp,%edi,4), c ## D;\ + movzx b ## B, %edi;\ + mov s3(%ebp,%edi,4),%esi;\ + movzx a ## H, %edi;\ + ror $16, a ## D;\ + xor s1(%ebp,%edi,4),c ## D;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor (%ebp,%edi,4), %esi;\ + movzx a ## B, %edi;\ + xor s2(%ebp,%edi,4),c ## D;\ + movzx b ## B, %edi;\ + xor s1(%ebp,%edi,4),%esi;\ + movzx a ## H, %edi;\ + ror $15, a ## D;\ + xor s3(%ebp,%edi,4),c ## D;\ + movzx b ## H, %edi;\ + xor s2(%ebp,%edi,4),%esi;\ + pop %edi;\ + add %esi, c ## D;\ + add c ## D, %esi;\ + add k+round(%ebp), c ## D;\ + xor %edi, c ## D;\ + add k+4+round(%ebp),%esi;\ + xor %esi, d ## D;\ + rol $15, d ## D; + +/* + * a input register containing a + * b input register containing b (rotated 16) + * c input register containing c + * d input register containing d (already rol $1) + * operations on a and b are interleaved to increase performance + * last round has different rotations for the output preparation + */ +#define decrypt_last_round(a,b,c,d,round)\ + push c ## D;\ + movzx a ## B, %edi;\ + mov (%ebp,%edi,4), c ## D;\ + movzx b ## B, %edi;\ + mov s3(%ebp,%edi,4),%esi;\ + movzx a ## H, %edi;\ + ror $16, a ## D;\ + xor s1(%ebp,%edi,4),c ## D;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor (%ebp,%edi,4), %esi;\ + movzx a ## B, %edi;\ + xor s2(%ebp,%edi,4),c ## D;\ + movzx b ## B, %edi;\ + xor s1(%ebp,%edi,4),%esi;\ + movzx a ## H, %edi;\ + ror $16, a ## D;\ + xor s3(%ebp,%edi,4),c ## D;\ + movzx b ## H, %edi;\ + xor s2(%ebp,%edi,4),%esi;\ + pop %edi;\ + add %esi, c ## D;\ + add c ## D, %esi;\ + add k+round(%ebp), c ## D;\ + xor %edi, c ## D;\ + add k+4+round(%ebp),%esi;\ + xor %esi, d ## D;\ + ror $1, d ## D; + +ENTRY(twofish_enc_blk) + push %ebp /* save registers according to calling convention*/ + push %ebx + push %esi + push %edi + + mov ctx + 16(%esp), %ebp /* abuse the base pointer: set new base + * pointer to the ctx address */ + mov in_blk+16(%esp),%edi /* input address in edi */ + + mov (%edi), %eax + mov b_offset(%edi), %ebx + mov c_offset(%edi), %ecx + mov d_offset(%edi), %edx + input_whitening(%eax,%ebp,a_offset) + ror $16, %eax + input_whitening(%ebx,%ebp,b_offset) + input_whitening(%ecx,%ebp,c_offset) + input_whitening(%edx,%ebp,d_offset) + rol $1, %edx + + encrypt_round(R0,R1,R2,R3,0); + encrypt_round(R2,R3,R0,R1,8); + encrypt_round(R0,R1,R2,R3,2*8); + encrypt_round(R2,R3,R0,R1,3*8); + encrypt_round(R0,R1,R2,R3,4*8); + encrypt_round(R2,R3,R0,R1,5*8); + encrypt_round(R0,R1,R2,R3,6*8); + encrypt_round(R2,R3,R0,R1,7*8); + encrypt_round(R0,R1,R2,R3,8*8); + encrypt_round(R2,R3,R0,R1,9*8); + encrypt_round(R0,R1,R2,R3,10*8); + encrypt_round(R2,R3,R0,R1,11*8); + encrypt_round(R0,R1,R2,R3,12*8); + encrypt_round(R2,R3,R0,R1,13*8); + encrypt_round(R0,R1,R2,R3,14*8); + encrypt_last_round(R2,R3,R0,R1,15*8); + + output_whitening(%eax,%ebp,c_offset) + output_whitening(%ebx,%ebp,d_offset) + output_whitening(%ecx,%ebp,a_offset) + output_whitening(%edx,%ebp,b_offset) + mov out_blk+16(%esp),%edi; + mov %eax, c_offset(%edi) + mov %ebx, d_offset(%edi) + mov %ecx, (%edi) + mov %edx, b_offset(%edi) + + pop %edi + pop %esi + pop %ebx + pop %ebp + mov $1, %eax + ret +ENDPROC(twofish_enc_blk) + +ENTRY(twofish_dec_blk) + push %ebp /* save registers according to calling convention*/ + push %ebx + push %esi + push %edi + + + mov ctx + 16(%esp), %ebp /* abuse the base pointer: set new base + * pointer to the ctx address */ + mov in_blk+16(%esp),%edi /* input address in edi */ + + mov (%edi), %eax + mov b_offset(%edi), %ebx + mov c_offset(%edi), %ecx + mov d_offset(%edi), %edx + output_whitening(%eax,%ebp,a_offset) + output_whitening(%ebx,%ebp,b_offset) + ror $16, %ebx + output_whitening(%ecx,%ebp,c_offset) + output_whitening(%edx,%ebp,d_offset) + rol $1, %ecx + + decrypt_round(R0,R1,R2,R3,15*8); + decrypt_round(R2,R3,R0,R1,14*8); + decrypt_round(R0,R1,R2,R3,13*8); + decrypt_round(R2,R3,R0,R1,12*8); + decrypt_round(R0,R1,R2,R3,11*8); + decrypt_round(R2,R3,R0,R1,10*8); + decrypt_round(R0,R1,R2,R3,9*8); + decrypt_round(R2,R3,R0,R1,8*8); + decrypt_round(R0,R1,R2,R3,7*8); + decrypt_round(R2,R3,R0,R1,6*8); + decrypt_round(R0,R1,R2,R3,5*8); + decrypt_round(R2,R3,R0,R1,4*8); + decrypt_round(R0,R1,R2,R3,3*8); + decrypt_round(R2,R3,R0,R1,2*8); + decrypt_round(R0,R1,R2,R3,1*8); + decrypt_last_round(R2,R3,R0,R1,0); + + input_whitening(%eax,%ebp,c_offset) + input_whitening(%ebx,%ebp,d_offset) + input_whitening(%ecx,%ebp,a_offset) + input_whitening(%edx,%ebp,b_offset) + mov out_blk+16(%esp),%edi; + mov %eax, c_offset(%edi) + mov %ebx, d_offset(%edi) + mov %ecx, (%edi) + mov %edx, b_offset(%edi) + + pop %edi + pop %esi + pop %ebx + pop %ebp + mov $1, %eax + ret +ENDPROC(twofish_dec_blk) diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S new file mode 100644 index 000000000..e7273a606 --- /dev/null +++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S @@ -0,0 +1,320 @@ +/* + * Twofish Cipher 3-way parallel algorithm (x86_64) + * + * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/linkage.h> + +.file "twofish-x86_64-asm-3way.S" +.text + +/* structure of crypto context */ +#define s0 0 +#define s1 1024 +#define s2 2048 +#define s3 3072 +#define w 4096 +#define k 4128 + +/********************************************************************** + 3-way twofish + **********************************************************************/ +#define CTX %rdi +#define RIO %rdx + +#define RAB0 %rax +#define RAB1 %rbx +#define RAB2 %rcx + +#define RAB0d %eax +#define RAB1d %ebx +#define RAB2d %ecx + +#define RAB0bh %ah +#define RAB1bh %bh +#define RAB2bh %ch + +#define RAB0bl %al +#define RAB1bl %bl +#define RAB2bl %cl + +#define CD0 0x0(%rsp) +#define CD1 0x8(%rsp) +#define CD2 0x10(%rsp) + +# used only before/after all rounds +#define RCD0 %r8 +#define RCD1 %r9 +#define RCD2 %r10 + +# used only during rounds +#define RX0 %r8 +#define RX1 %r9 +#define RX2 %r10 + +#define RX0d %r8d +#define RX1d %r9d +#define RX2d %r10d + +#define RY0 %r11 +#define RY1 %r12 +#define RY2 %r13 + +#define RY0d %r11d +#define RY1d %r12d +#define RY2d %r13d + +#define RT0 %rdx +#define RT1 %rsi + +#define RT0d %edx +#define RT1d %esi + +#define RT1bl %sil + +#define do16bit_ror(rot, op1, op2, T0, T1, tmp1, tmp2, ab, dst) \ + movzbl ab ## bl, tmp2 ## d; \ + movzbl ab ## bh, tmp1 ## d; \ + rorq $(rot), ab; \ + op1##l T0(CTX, tmp2, 4), dst ## d; \ + op2##l T1(CTX, tmp1, 4), dst ## d; + +#define swap_ab_with_cd(ab, cd, tmp) \ + movq cd, tmp; \ + movq ab, cd; \ + movq tmp, ab; + +/* + * Combined G1 & G2 function. Reordered with help of rotates to have moves + * at begining. + */ +#define g1g2_3(ab, cd, Tx0, Tx1, Tx2, Tx3, Ty0, Ty1, Ty2, Ty3, x, y) \ + /* G1,1 && G2,1 */ \ + do16bit_ror(32, mov, xor, Tx0, Tx1, RT0, x ## 0, ab ## 0, x ## 0); \ + do16bit_ror(48, mov, xor, Ty1, Ty2, RT0, y ## 0, ab ## 0, y ## 0); \ + \ + do16bit_ror(32, mov, xor, Tx0, Tx1, RT0, x ## 1, ab ## 1, x ## 1); \ + do16bit_ror(48, mov, xor, Ty1, Ty2, RT0, y ## 1, ab ## 1, y ## 1); \ + \ + do16bit_ror(32, mov, xor, Tx0, Tx1, RT0, x ## 2, ab ## 2, x ## 2); \ + do16bit_ror(48, mov, xor, Ty1, Ty2, RT0, y ## 2, ab ## 2, y ## 2); \ + \ + /* G1,2 && G2,2 */ \ + do16bit_ror(32, xor, xor, Tx2, Tx3, RT0, RT1, ab ## 0, x ## 0); \ + do16bit_ror(16, xor, xor, Ty3, Ty0, RT0, RT1, ab ## 0, y ## 0); \ + swap_ab_with_cd(ab ## 0, cd ## 0, RT0); \ + \ + do16bit_ror(32, xor, xor, Tx2, Tx3, RT0, RT1, ab ## 1, x ## 1); \ + do16bit_ror(16, xor, xor, Ty3, Ty0, RT0, RT1, ab ## 1, y ## 1); \ + swap_ab_with_cd(ab ## 1, cd ## 1, RT0); \ + \ + do16bit_ror(32, xor, xor, Tx2, Tx3, RT0, RT1, ab ## 2, x ## 2); \ + do16bit_ror(16, xor, xor, Ty3, Ty0, RT0, RT1, ab ## 2, y ## 2); \ + swap_ab_with_cd(ab ## 2, cd ## 2, RT0); + +#define enc_round_end(ab, x, y, n) \ + addl y ## d, x ## d; \ + addl x ## d, y ## d; \ + addl k+4*(2*(n))(CTX), x ## d; \ + xorl ab ## d, x ## d; \ + addl k+4*(2*(n)+1)(CTX), y ## d; \ + shrq $32, ab; \ + roll $1, ab ## d; \ + xorl y ## d, ab ## d; \ + shlq $32, ab; \ + rorl $1, x ## d; \ + orq x, ab; + +#define dec_round_end(ba, x, y, n) \ + addl y ## d, x ## d; \ + addl x ## d, y ## d; \ + addl k+4*(2*(n))(CTX), x ## d; \ + addl k+4*(2*(n)+1)(CTX), y ## d; \ + xorl ba ## d, y ## d; \ + shrq $32, ba; \ + roll $1, ba ## d; \ + xorl x ## d, ba ## d; \ + shlq $32, ba; \ + rorl $1, y ## d; \ + orq y, ba; + +#define encrypt_round3(ab, cd, n) \ + g1g2_3(ab, cd, s0, s1, s2, s3, s0, s1, s2, s3, RX, RY); \ + \ + enc_round_end(ab ## 0, RX0, RY0, n); \ + enc_round_end(ab ## 1, RX1, RY1, n); \ + enc_round_end(ab ## 2, RX2, RY2, n); + +#define decrypt_round3(ba, dc, n) \ + g1g2_3(ba, dc, s1, s2, s3, s0, s3, s0, s1, s2, RY, RX); \ + \ + dec_round_end(ba ## 0, RX0, RY0, n); \ + dec_round_end(ba ## 1, RX1, RY1, n); \ + dec_round_end(ba ## 2, RX2, RY2, n); + +#define encrypt_cycle3(ab, cd, n) \ + encrypt_round3(ab, cd, n*2); \ + encrypt_round3(ab, cd, (n*2)+1); + +#define decrypt_cycle3(ba, dc, n) \ + decrypt_round3(ba, dc, (n*2)+1); \ + decrypt_round3(ba, dc, (n*2)); + +#define push_cd() \ + pushq RCD2; \ + pushq RCD1; \ + pushq RCD0; + +#define pop_cd() \ + popq RCD0; \ + popq RCD1; \ + popq RCD2; + +#define inpack3(in, n, xy, m) \ + movq 4*(n)(in), xy ## 0; \ + xorq w+4*m(CTX), xy ## 0; \ + \ + movq 4*(4+(n))(in), xy ## 1; \ + xorq w+4*m(CTX), xy ## 1; \ + \ + movq 4*(8+(n))(in), xy ## 2; \ + xorq w+4*m(CTX), xy ## 2; + +#define outunpack3(op, out, n, xy, m) \ + xorq w+4*m(CTX), xy ## 0; \ + op ## q xy ## 0, 4*(n)(out); \ + \ + xorq w+4*m(CTX), xy ## 1; \ + op ## q xy ## 1, 4*(4+(n))(out); \ + \ + xorq w+4*m(CTX), xy ## 2; \ + op ## q xy ## 2, 4*(8+(n))(out); + +#define inpack_enc3() \ + inpack3(RIO, 0, RAB, 0); \ + inpack3(RIO, 2, RCD, 2); + +#define outunpack_enc3(op) \ + outunpack3(op, RIO, 2, RAB, 6); \ + outunpack3(op, RIO, 0, RCD, 4); + +#define inpack_dec3() \ + inpack3(RIO, 0, RAB, 4); \ + rorq $32, RAB0; \ + rorq $32, RAB1; \ + rorq $32, RAB2; \ + inpack3(RIO, 2, RCD, 6); \ + rorq $32, RCD0; \ + rorq $32, RCD1; \ + rorq $32, RCD2; + +#define outunpack_dec3() \ + rorq $32, RCD0; \ + rorq $32, RCD1; \ + rorq $32, RCD2; \ + outunpack3(mov, RIO, 0, RCD, 0); \ + rorq $32, RAB0; \ + rorq $32, RAB1; \ + rorq $32, RAB2; \ + outunpack3(mov, RIO, 2, RAB, 2); + +ENTRY(__twofish_enc_blk_3way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src, RIO + * %rcx: bool, if true: xor output + */ + pushq %r13; + pushq %r12; + pushq %rbx; + + pushq %rcx; /* bool xor */ + pushq %rsi; /* dst */ + + inpack_enc3(); + + push_cd(); + encrypt_cycle3(RAB, CD, 0); + encrypt_cycle3(RAB, CD, 1); + encrypt_cycle3(RAB, CD, 2); + encrypt_cycle3(RAB, CD, 3); + encrypt_cycle3(RAB, CD, 4); + encrypt_cycle3(RAB, CD, 5); + encrypt_cycle3(RAB, CD, 6); + encrypt_cycle3(RAB, CD, 7); + pop_cd(); + + popq RIO; /* dst */ + popq RT1; /* bool xor */ + + testb RT1bl, RT1bl; + jnz .L__enc_xor3; + + outunpack_enc3(mov); + + popq %rbx; + popq %r12; + popq %r13; + ret; + +.L__enc_xor3: + outunpack_enc3(xor); + + popq %rbx; + popq %r12; + popq %r13; + ret; +ENDPROC(__twofish_enc_blk_3way) + +ENTRY(twofish_dec_blk_3way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst + * %rdx: src, RIO + */ + pushq %r13; + pushq %r12; + pushq %rbx; + + pushq %rsi; /* dst */ + + inpack_dec3(); + + push_cd(); + decrypt_cycle3(RAB, CD, 7); + decrypt_cycle3(RAB, CD, 6); + decrypt_cycle3(RAB, CD, 5); + decrypt_cycle3(RAB, CD, 4); + decrypt_cycle3(RAB, CD, 3); + decrypt_cycle3(RAB, CD, 2); + decrypt_cycle3(RAB, CD, 1); + decrypt_cycle3(RAB, CD, 0); + pop_cd(); + + popq RIO; /* dst */ + + outunpack_dec3(); + + popq %rbx; + popq %r12; + popq %r13; + ret; +ENDPROC(twofish_dec_blk_3way) diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S new file mode 100644 index 000000000..a350c990d --- /dev/null +++ b/arch/x86/crypto/twofish-x86_64-asm_64.S @@ -0,0 +1,321 @@ +/*************************************************************************** +* Copyright (C) 2006 by Joachim Fritschi, <jfritschi@freenet.de> * +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +* This program is distributed in the hope that it will be useful, * +* but WITHOUT ANY WARRANTY; without even the implied warranty of * +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * +* GNU General Public License for more details. * +* * +* You should have received a copy of the GNU General Public License * +* along with this program; if not, write to the * +* Free Software Foundation, Inc., * +* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * +***************************************************************************/ + +.file "twofish-x86_64-asm.S" +.text + +#include <linux/linkage.h> +#include <asm/asm-offsets.h> + +#define a_offset 0 +#define b_offset 4 +#define c_offset 8 +#define d_offset 12 + +/* Structure of the crypto context struct*/ + +#define s0 0 /* S0 Array 256 Words each */ +#define s1 1024 /* S1 Array */ +#define s2 2048 /* S2 Array */ +#define s3 3072 /* S3 Array */ +#define w 4096 /* 8 whitening keys (word) */ +#define k 4128 /* key 1-32 ( word ) */ + +/* define a few register aliases to allow macro substitution */ + +#define R0 %rax +#define R0D %eax +#define R0B %al +#define R0H %ah + +#define R1 %rbx +#define R1D %ebx +#define R1B %bl +#define R1H %bh + +#define R2 %rcx +#define R2D %ecx +#define R2B %cl +#define R2H %ch + +#define R3 %rdx +#define R3D %edx +#define R3B %dl +#define R3H %dh + + +/* performs input whitening */ +#define input_whitening(src,context,offset)\ + xor w+offset(context), src; + +/* performs input whitening */ +#define output_whitening(src,context,offset)\ + xor w+16+offset(context), src; + + +/* + * a input register containing a (rotated 16) + * b input register containing b + * c input register containing c + * d input register containing d (already rol $1) + * operations on a and b are interleaved to increase performance + */ +#define encrypt_round(a,b,c,d,round)\ + movzx b ## B, %edi;\ + mov s1(%r11,%rdi,4),%r8d;\ + movzx a ## B, %edi;\ + mov s2(%r11,%rdi,4),%r9d;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor s2(%r11,%rdi,4),%r8d;\ + movzx a ## H, %edi;\ + ror $16, a ## D;\ + xor s3(%r11,%rdi,4),%r9d;\ + movzx b ## B, %edi;\ + xor s3(%r11,%rdi,4),%r8d;\ + movzx a ## B, %edi;\ + xor (%r11,%rdi,4), %r9d;\ + movzx b ## H, %edi;\ + ror $15, b ## D;\ + xor (%r11,%rdi,4), %r8d;\ + movzx a ## H, %edi;\ + xor s1(%r11,%rdi,4),%r9d;\ + add %r8d, %r9d;\ + add %r9d, %r8d;\ + add k+round(%r11), %r9d;\ + xor %r9d, c ## D;\ + rol $15, c ## D;\ + add k+4+round(%r11),%r8d;\ + xor %r8d, d ## D; + +/* + * a input register containing a(rotated 16) + * b input register containing b + * c input register containing c + * d input register containing d (already rol $1) + * operations on a and b are interleaved to increase performance + * during the round a and b are prepared for the output whitening + */ +#define encrypt_last_round(a,b,c,d,round)\ + mov b ## D, %r10d;\ + shl $32, %r10;\ + movzx b ## B, %edi;\ + mov s1(%r11,%rdi,4),%r8d;\ + movzx a ## B, %edi;\ + mov s2(%r11,%rdi,4),%r9d;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor s2(%r11,%rdi,4),%r8d;\ + movzx a ## H, %edi;\ + ror $16, a ## D;\ + xor s3(%r11,%rdi,4),%r9d;\ + movzx b ## B, %edi;\ + xor s3(%r11,%rdi,4),%r8d;\ + movzx a ## B, %edi;\ + xor (%r11,%rdi,4), %r9d;\ + xor a, %r10;\ + movzx b ## H, %edi;\ + xor (%r11,%rdi,4), %r8d;\ + movzx a ## H, %edi;\ + xor s1(%r11,%rdi,4),%r9d;\ + add %r8d, %r9d;\ + add %r9d, %r8d;\ + add k+round(%r11), %r9d;\ + xor %r9d, c ## D;\ + ror $1, c ## D;\ + add k+4+round(%r11),%r8d;\ + xor %r8d, d ## D + +/* + * a input register containing a + * b input register containing b (rotated 16) + * c input register containing c (already rol $1) + * d input register containing d + * operations on a and b are interleaved to increase performance + */ +#define decrypt_round(a,b,c,d,round)\ + movzx a ## B, %edi;\ + mov (%r11,%rdi,4), %r9d;\ + movzx b ## B, %edi;\ + mov s3(%r11,%rdi,4),%r8d;\ + movzx a ## H, %edi;\ + ror $16, a ## D;\ + xor s1(%r11,%rdi,4),%r9d;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor (%r11,%rdi,4), %r8d;\ + movzx a ## B, %edi;\ + xor s2(%r11,%rdi,4),%r9d;\ + movzx b ## B, %edi;\ + xor s1(%r11,%rdi,4),%r8d;\ + movzx a ## H, %edi;\ + ror $15, a ## D;\ + xor s3(%r11,%rdi,4),%r9d;\ + movzx b ## H, %edi;\ + xor s2(%r11,%rdi,4),%r8d;\ + add %r8d, %r9d;\ + add %r9d, %r8d;\ + add k+round(%r11), %r9d;\ + xor %r9d, c ## D;\ + add k+4+round(%r11),%r8d;\ + xor %r8d, d ## D;\ + rol $15, d ## D; + +/* + * a input register containing a + * b input register containing b + * c input register containing c (already rol $1) + * d input register containing d + * operations on a and b are interleaved to increase performance + * during the round a and b are prepared for the output whitening + */ +#define decrypt_last_round(a,b,c,d,round)\ + movzx a ## B, %edi;\ + mov (%r11,%rdi,4), %r9d;\ + movzx b ## B, %edi;\ + mov s3(%r11,%rdi,4),%r8d;\ + movzx b ## H, %edi;\ + ror $16, b ## D;\ + xor (%r11,%rdi,4), %r8d;\ + movzx a ## H, %edi;\ + mov b ## D, %r10d;\ + shl $32, %r10;\ + xor a, %r10;\ + ror $16, a ## D;\ + xor s1(%r11,%rdi,4),%r9d;\ + movzx b ## B, %edi;\ + xor s1(%r11,%rdi,4),%r8d;\ + movzx a ## B, %edi;\ + xor s2(%r11,%rdi,4),%r9d;\ + movzx b ## H, %edi;\ + xor s2(%r11,%rdi,4),%r8d;\ + movzx a ## H, %edi;\ + xor s3(%r11,%rdi,4),%r9d;\ + add %r8d, %r9d;\ + add %r9d, %r8d;\ + add k+round(%r11), %r9d;\ + xor %r9d, c ## D;\ + add k+4+round(%r11),%r8d;\ + xor %r8d, d ## D;\ + ror $1, d ## D; + +ENTRY(twofish_enc_blk) + pushq R1 + + /* %rdi contains the ctx address */ + /* %rsi contains the output address */ + /* %rdx contains the input address */ + /* ctx address is moved to free one non-rex register + as target for the 8bit high operations */ + mov %rdi, %r11 + + movq (R3), R1 + movq 8(R3), R3 + input_whitening(R1,%r11,a_offset) + input_whitening(R3,%r11,c_offset) + mov R1D, R0D + rol $16, R0D + shr $32, R1 + mov R3D, R2D + shr $32, R3 + rol $1, R3D + + encrypt_round(R0,R1,R2,R3,0); + encrypt_round(R2,R3,R0,R1,8); + encrypt_round(R0,R1,R2,R3,2*8); + encrypt_round(R2,R3,R0,R1,3*8); + encrypt_round(R0,R1,R2,R3,4*8); + encrypt_round(R2,R3,R0,R1,5*8); + encrypt_round(R0,R1,R2,R3,6*8); + encrypt_round(R2,R3,R0,R1,7*8); + encrypt_round(R0,R1,R2,R3,8*8); + encrypt_round(R2,R3,R0,R1,9*8); + encrypt_round(R0,R1,R2,R3,10*8); + encrypt_round(R2,R3,R0,R1,11*8); + encrypt_round(R0,R1,R2,R3,12*8); + encrypt_round(R2,R3,R0,R1,13*8); + encrypt_round(R0,R1,R2,R3,14*8); + encrypt_last_round(R2,R3,R0,R1,15*8); + + + output_whitening(%r10,%r11,a_offset) + movq %r10, (%rsi) + + shl $32, R1 + xor R0, R1 + + output_whitening(R1,%r11,c_offset) + movq R1, 8(%rsi) + + popq R1 + movl $1,%eax + ret +ENDPROC(twofish_enc_blk) + +ENTRY(twofish_dec_blk) + pushq R1 + + /* %rdi contains the ctx address */ + /* %rsi contains the output address */ + /* %rdx contains the input address */ + /* ctx address is moved to free one non-rex register + as target for the 8bit high operations */ + mov %rdi, %r11 + + movq (R3), R1 + movq 8(R3), R3 + output_whitening(R1,%r11,a_offset) + output_whitening(R3,%r11,c_offset) + mov R1D, R0D + shr $32, R1 + rol $16, R1D + mov R3D, R2D + shr $32, R3 + rol $1, R2D + + decrypt_round(R0,R1,R2,R3,15*8); + decrypt_round(R2,R3,R0,R1,14*8); + decrypt_round(R0,R1,R2,R3,13*8); + decrypt_round(R2,R3,R0,R1,12*8); + decrypt_round(R0,R1,R2,R3,11*8); + decrypt_round(R2,R3,R0,R1,10*8); + decrypt_round(R0,R1,R2,R3,9*8); + decrypt_round(R2,R3,R0,R1,8*8); + decrypt_round(R0,R1,R2,R3,7*8); + decrypt_round(R2,R3,R0,R1,6*8); + decrypt_round(R0,R1,R2,R3,5*8); + decrypt_round(R2,R3,R0,R1,4*8); + decrypt_round(R0,R1,R2,R3,3*8); + decrypt_round(R2,R3,R0,R1,2*8); + decrypt_round(R0,R1,R2,R3,1*8); + decrypt_last_round(R2,R3,R0,R1,0); + + input_whitening(%r10,%r11,a_offset) + movq %r10, (%rsi) + + shl $32, R1 + xor R0, R1 + + input_whitening(R1,%r11,c_offset) + movq R1, 8(%rsi) + + popq R1 + movl $1,%eax + ret +ENDPROC(twofish_dec_blk) diff --git a/arch/x86/crypto/twofish_avx_glue.c b/arch/x86/crypto/twofish_avx_glue.c new file mode 100644 index 000000000..66d989230 --- /dev/null +++ b/arch/x86/crypto/twofish_avx_glue.c @@ -0,0 +1,328 @@ +/* + * Glue Code for AVX assembler version of Twofish Cipher + * + * Copyright (C) 2012 Johannes Goetzfried + * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> + * + * Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/crypto.h> +#include <linux/err.h> +#include <crypto/algapi.h> +#include <crypto/internal/simd.h> +#include <crypto/twofish.h> +#include <crypto/xts.h> +#include <asm/crypto/glue_helper.h> +#include <asm/crypto/twofish.h> + +#define TWOFISH_PARALLEL_BLOCKS 8 + +/* 8-way parallel cipher functions */ +asmlinkage void twofish_ecb_enc_8way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void twofish_ecb_dec_8way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src); + +asmlinkage void twofish_cbc_dec_8way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src); +asmlinkage void twofish_ctr_8way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +asmlinkage void twofish_xts_enc_8way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +asmlinkage void twofish_xts_dec_8way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +static int twofish_setkey_skcipher(struct crypto_skcipher *tfm, + const u8 *key, unsigned int keylen) +{ + return twofish_setkey(&tfm->base, key, keylen); +} + +static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src) +{ + __twofish_enc_blk_3way(ctx, dst, src, false); +} + +static void twofish_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(twofish_enc_blk)); +} + +static void twofish_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(twofish_dec_blk)); +} + +struct twofish_xts_ctx { + struct twofish_ctx tweak_ctx; + struct twofish_ctx crypt_ctx; +}; + +static int xts_twofish_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen) +{ + struct twofish_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + u32 *flags = &tfm->base.crt_flags; + int err; + + err = xts_verify_key(tfm, key, keylen); + if (err) + return err; + + /* first half of xts-key is for crypt */ + err = __twofish_setkey(&ctx->crypt_ctx, key, keylen / 2, flags); + if (err) + return err; + + /* second half of xts-key is for tweak */ + return __twofish_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2, + flags); +} + +static const struct common_glue_ctx twofish_enc = { + .num_funcs = 3, + .fpu_blocks_limit = TWOFISH_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = TWOFISH_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_ecb_enc_8way) } + }, { + .num_blocks = 3, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_3way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk) } + } } +}; + +static const struct common_glue_ctx twofish_ctr = { + .num_funcs = 3, + .fpu_blocks_limit = TWOFISH_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = TWOFISH_PARALLEL_BLOCKS, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_ctr_8way) } + }, { + .num_blocks = 3, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_enc_blk_ctr_3way) } + }, { + .num_blocks = 1, + .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_enc_blk_ctr) } + } } +}; + +static const struct common_glue_ctx twofish_enc_xts = { + .num_funcs = 2, + .fpu_blocks_limit = TWOFISH_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = TWOFISH_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_enc_8way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_enc) } + } } +}; + +static const struct common_glue_ctx twofish_dec = { + .num_funcs = 3, + .fpu_blocks_limit = TWOFISH_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = TWOFISH_PARALLEL_BLOCKS, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_ecb_dec_8way) } + }, { + .num_blocks = 3, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk_3way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk) } + } } +}; + +static const struct common_glue_ctx twofish_dec_cbc = { + .num_funcs = 3, + .fpu_blocks_limit = TWOFISH_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = TWOFISH_PARALLEL_BLOCKS, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_cbc_dec_8way) } + }, { + .num_blocks = 3, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk_cbc_3way) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk) } + } } +}; + +static const struct common_glue_ctx twofish_dec_xts = { + .num_funcs = 2, + .fpu_blocks_limit = TWOFISH_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = TWOFISH_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_dec_8way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_dec) } + } } +}; + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&twofish_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&twofish_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(twofish_enc_blk), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&twofish_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&twofish_ctr, req); +} + +static int xts_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct twofish_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&twofish_enc_xts, req, + XTS_TWEAK_CAST(twofish_enc_blk), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static int xts_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct twofish_xts_ctx *ctx = crypto_skcipher_ctx(tfm); + + return glue_xts_req_128bit(&twofish_dec_xts, req, + XTS_TWEAK_CAST(twofish_enc_blk), + &ctx->tweak_ctx, &ctx->crypt_ctx); +} + +static struct skcipher_alg twofish_algs[] = { + { + .base.cra_name = "__ecb(twofish)", + .base.cra_driver_name = "__ecb-twofish-avx", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = TF_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct twofish_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = TF_MIN_KEY_SIZE, + .max_keysize = TF_MAX_KEY_SIZE, + .setkey = twofish_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "__cbc(twofish)", + .base.cra_driver_name = "__cbc-twofish-avx", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = TF_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct twofish_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = TF_MIN_KEY_SIZE, + .max_keysize = TF_MAX_KEY_SIZE, + .ivsize = TF_BLOCK_SIZE, + .setkey = twofish_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "__ctr(twofish)", + .base.cra_driver_name = "__ctr-twofish-avx", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct twofish_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = TF_MIN_KEY_SIZE, + .max_keysize = TF_MAX_KEY_SIZE, + .ivsize = TF_BLOCK_SIZE, + .chunksize = TF_BLOCK_SIZE, + .setkey = twofish_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, { + .base.cra_name = "__xts(twofish)", + .base.cra_driver_name = "__xts-twofish-avx", + .base.cra_priority = 400, + .base.cra_flags = CRYPTO_ALG_INTERNAL, + .base.cra_blocksize = TF_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct twofish_xts_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = 2 * TF_MIN_KEY_SIZE, + .max_keysize = 2 * TF_MAX_KEY_SIZE, + .ivsize = TF_BLOCK_SIZE, + .setkey = xts_twofish_setkey, + .encrypt = xts_encrypt, + .decrypt = xts_decrypt, + }, +}; + +static struct simd_skcipher_alg *twofish_simd_algs[ARRAY_SIZE(twofish_algs)]; + +static int __init twofish_init(void) +{ + const char *feature_name; + + if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, &feature_name)) { + pr_info("CPU feature '%s' is not supported.\n", feature_name); + return -ENODEV; + } + + return simd_register_skciphers_compat(twofish_algs, + ARRAY_SIZE(twofish_algs), + twofish_simd_algs); +} + +static void __exit twofish_exit(void) +{ + simd_unregister_skciphers(twofish_algs, ARRAY_SIZE(twofish_algs), + twofish_simd_algs); +} + +module_init(twofish_init); +module_exit(twofish_exit); + +MODULE_DESCRIPTION("Twofish Cipher Algorithm, AVX optimized"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_CRYPTO("twofish"); diff --git a/arch/x86/crypto/twofish_glue.c b/arch/x86/crypto/twofish_glue.c new file mode 100644 index 000000000..77e06c2da --- /dev/null +++ b/arch/x86/crypto/twofish_glue.c @@ -0,0 +1,100 @@ +/* + * Glue Code for assembler optimized version of TWOFISH + * + * Originally Twofish for GPG + * By Matthew Skala <mskala@ansuz.sooke.bc.ca>, July 26, 1998 + * 256-bit key length added March 20, 1999 + * Some modifications to reduce the text size by Werner Koch, April, 1998 + * Ported to the kerneli patch by Marc Mutz <Marc@Mutz.com> + * Ported to CryptoAPI by Colin Slater <hoho@tacomeat.net> + * + * The original author has disclaimed all copyright interest in this + * code and thus put it in the public domain. The subsequent authors + * have put this under the GNU General Public License. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + * This code is a "clean room" implementation, written from the paper + * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey, + * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available + * through http://www.counterpane.com/twofish.html + * + * For background information on multiplication in finite fields, used for + * the matrix operations in the key schedule, see the book _Contemporary + * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the + * Third Edition. + */ + +#include <crypto/twofish.h> +#include <linux/crypto.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> + +asmlinkage void twofish_enc_blk(struct twofish_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(twofish_enc_blk); +asmlinkage void twofish_dec_blk(struct twofish_ctx *ctx, u8 *dst, + const u8 *src); +EXPORT_SYMBOL_GPL(twofish_dec_blk); + +static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + twofish_enc_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + twofish_dec_blk(crypto_tfm_ctx(tfm), dst, src); +} + +static struct crypto_alg alg = { + .cra_name = "twofish", + .cra_driver_name = "twofish-asm", + .cra_priority = 200, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_blocksize = TF_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct twofish_ctx), + .cra_alignmask = 0, + .cra_module = THIS_MODULE, + .cra_u = { + .cipher = { + .cia_min_keysize = TF_MIN_KEY_SIZE, + .cia_max_keysize = TF_MAX_KEY_SIZE, + .cia_setkey = twofish_setkey, + .cia_encrypt = twofish_encrypt, + .cia_decrypt = twofish_decrypt + } + } +}; + +static int __init init(void) +{ + return crypto_register_alg(&alg); +} + +static void __exit fini(void) +{ + crypto_unregister_alg(&alg); +} + +module_init(init); +module_exit(fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION ("Twofish Cipher Algorithm, asm optimized"); +MODULE_ALIAS_CRYPTO("twofish"); +MODULE_ALIAS_CRYPTO("twofish-asm"); diff --git a/arch/x86/crypto/twofish_glue_3way.c b/arch/x86/crypto/twofish_glue_3way.c new file mode 100644 index 000000000..571485502 --- /dev/null +++ b/arch/x86/crypto/twofish_glue_3way.c @@ -0,0 +1,290 @@ +/* + * Glue Code for 3-way parallel assembler optimized version of Twofish + * + * Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + */ + +#include <asm/crypto/glue_helper.h> +#include <asm/crypto/twofish.h> +#include <crypto/algapi.h> +#include <crypto/b128ops.h> +#include <crypto/internal/skcipher.h> +#include <crypto/twofish.h> +#include <linux/crypto.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> + +EXPORT_SYMBOL_GPL(__twofish_enc_blk_3way); +EXPORT_SYMBOL_GPL(twofish_dec_blk_3way); + +static int twofish_setkey_skcipher(struct crypto_skcipher *tfm, + const u8 *key, unsigned int keylen) +{ + return twofish_setkey(&tfm->base, key, keylen); +} + +static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src) +{ + __twofish_enc_blk_3way(ctx, dst, src, false); +} + +static inline void twofish_enc_blk_xor_3way(struct twofish_ctx *ctx, u8 *dst, + const u8 *src) +{ + __twofish_enc_blk_3way(ctx, dst, src, true); +} + +void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src) +{ + u128 ivs[2]; + + ivs[0] = src[0]; + ivs[1] = src[1]; + + twofish_dec_blk_3way(ctx, (u8 *)dst, (u8 *)src); + + u128_xor(&dst[1], &dst[1], &ivs[0]); + u128_xor(&dst[2], &dst[2], &ivs[1]); +} +EXPORT_SYMBOL_GPL(twofish_dec_blk_cbc_3way); + +void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + be128 ctrblk; + + if (dst != src) + *dst = *src; + + le128_to_be128(&ctrblk, iv); + le128_inc(iv); + + twofish_enc_blk(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk); + u128_xor(dst, dst, (u128 *)&ctrblk); +} +EXPORT_SYMBOL_GPL(twofish_enc_blk_ctr); + +void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src, + le128 *iv) +{ + be128 ctrblks[3]; + + if (dst != src) { + dst[0] = src[0]; + dst[1] = src[1]; + dst[2] = src[2]; + } + + le128_to_be128(&ctrblks[0], iv); + le128_inc(iv); + le128_to_be128(&ctrblks[1], iv); + le128_inc(iv); + le128_to_be128(&ctrblks[2], iv); + le128_inc(iv); + + twofish_enc_blk_xor_3way(ctx, (u8 *)dst, (u8 *)ctrblks); +} +EXPORT_SYMBOL_GPL(twofish_enc_blk_ctr_3way); + +static const struct common_glue_ctx twofish_enc = { + .num_funcs = 2, + .fpu_blocks_limit = -1, + + .funcs = { { + .num_blocks = 3, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_3way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk) } + } } +}; + +static const struct common_glue_ctx twofish_ctr = { + .num_funcs = 2, + .fpu_blocks_limit = -1, + + .funcs = { { + .num_blocks = 3, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_ctr_3way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_ctr) } + } } +}; + +static const struct common_glue_ctx twofish_dec = { + .num_funcs = 2, + .fpu_blocks_limit = -1, + + .funcs = { { + .num_blocks = 3, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk_3way) } + }, { + .num_blocks = 1, + .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk) } + } } +}; + +static const struct common_glue_ctx twofish_dec_cbc = { + .num_funcs = 2, + .fpu_blocks_limit = -1, + + .funcs = { { + .num_blocks = 3, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk_cbc_3way) } + }, { + .num_blocks = 1, + .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk) } + } } +}; + +static int ecb_encrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&twofish_enc, req); +} + +static int ecb_decrypt(struct skcipher_request *req) +{ + return glue_ecb_req_128bit(&twofish_dec, req); +} + +static int cbc_encrypt(struct skcipher_request *req) +{ + return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(twofish_enc_blk), + req); +} + +static int cbc_decrypt(struct skcipher_request *req) +{ + return glue_cbc_decrypt_req_128bit(&twofish_dec_cbc, req); +} + +static int ctr_crypt(struct skcipher_request *req) +{ + return glue_ctr_req_128bit(&twofish_ctr, req); +} + +static struct skcipher_alg tf_skciphers[] = { + { + .base.cra_name = "ecb(twofish)", + .base.cra_driver_name = "ecb-twofish-3way", + .base.cra_priority = 300, + .base.cra_blocksize = TF_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct twofish_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = TF_MIN_KEY_SIZE, + .max_keysize = TF_MAX_KEY_SIZE, + .setkey = twofish_setkey_skcipher, + .encrypt = ecb_encrypt, + .decrypt = ecb_decrypt, + }, { + .base.cra_name = "cbc(twofish)", + .base.cra_driver_name = "cbc-twofish-3way", + .base.cra_priority = 300, + .base.cra_blocksize = TF_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct twofish_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = TF_MIN_KEY_SIZE, + .max_keysize = TF_MAX_KEY_SIZE, + .ivsize = TF_BLOCK_SIZE, + .setkey = twofish_setkey_skcipher, + .encrypt = cbc_encrypt, + .decrypt = cbc_decrypt, + }, { + .base.cra_name = "ctr(twofish)", + .base.cra_driver_name = "ctr-twofish-3way", + .base.cra_priority = 300, + .base.cra_blocksize = 1, + .base.cra_ctxsize = sizeof(struct twofish_ctx), + .base.cra_module = THIS_MODULE, + .min_keysize = TF_MIN_KEY_SIZE, + .max_keysize = TF_MAX_KEY_SIZE, + .ivsize = TF_BLOCK_SIZE, + .chunksize = TF_BLOCK_SIZE, + .setkey = twofish_setkey_skcipher, + .encrypt = ctr_crypt, + .decrypt = ctr_crypt, + }, +}; + +static bool is_blacklisted_cpu(void) +{ + if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) + return false; + + if (boot_cpu_data.x86 == 0x06 && + (boot_cpu_data.x86_model == 0x1c || + boot_cpu_data.x86_model == 0x26 || + boot_cpu_data.x86_model == 0x36)) { + /* + * On Atom, twofish-3way is slower than original assembler + * implementation. Twofish-3way trades off some performance in + * storing blocks in 64bit registers to allow three blocks to + * be processed parallel. Parallel operation then allows gaining + * more performance than was trade off, on out-of-order CPUs. + * However Atom does not benefit from this parallellism and + * should be blacklisted. + */ + return true; + } + + if (boot_cpu_data.x86 == 0x0f) { + /* + * On Pentium 4, twofish-3way is slower than original assembler + * implementation because excessive uses of 64bit rotate and + * left-shifts (which are really slow on P4) needed to store and + * handle 128bit block in two 64bit registers. + */ + return true; + } + + return false; +} + +static int force; +module_param(force, int, 0); +MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist"); + +static int __init init(void) +{ + if (!force && is_blacklisted_cpu()) { + printk(KERN_INFO + "twofish-x86_64-3way: performance on this CPU " + "would be suboptimal: disabling " + "twofish-x86_64-3way.\n"); + return -ENODEV; + } + + return crypto_register_skciphers(tf_skciphers, + ARRAY_SIZE(tf_skciphers)); +} + +static void __exit fini(void) +{ + crypto_unregister_skciphers(tf_skciphers, ARRAY_SIZE(tf_skciphers)); +} + +module_init(init); +module_exit(fini); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Twofish Cipher Algorithm, 3-way parallel asm optimized"); +MODULE_ALIAS_CRYPTO("twofish"); +MODULE_ALIAS_CRYPTO("twofish-asm"); |