Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 169 insertions, 0 deletions

diff --git a/arch/x86/crypto/sm4_aesni_avx2_glue.c b/arch/x86/crypto/sm4_aesni_avx2_glue.c
new file mode 100644
index 000000000..84bc718f4
--- /dev/null
+++ b/arch/x86/crypto/sm4_aesni_avx2_glue.c
@@ -0,0 +1,169 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM4 Cipher Algorithm, AES-NI/AVX2 optimized.
+ * as specified in
+ * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html
+ *
+ * Copyright (c) 2021, Alibaba Group.
+ * Copyright (c) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <asm/simd.h>
+#include <crypto/internal/simd.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/sm4.h>
+#include "sm4-avx.h"
+
+#define SM4_CRYPT16_BLOCK_SIZE	(SM4_BLOCK_SIZE * 16)
+
+asmlinkage void sm4_aesni_avx2_ctr_enc_blk16(const u32 *rk, u8 *dst,
+					const u8 *src, u8 *iv);
+asmlinkage void sm4_aesni_avx2_cbc_dec_blk16(const u32 *rk, u8 *dst,
+					const u8 *src, u8 *iv);
+asmlinkage void sm4_aesni_avx2_cfb_dec_blk16(const u32 *rk, u8 *dst,
+					const u8 *src, u8 *iv);
+
+static int sm4_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
+			unsigned int key_len)
+{
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+	return sm4_expandkey(ctx, key, key_len);
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+	return sm4_avx_cbc_decrypt(req, SM4_CRYPT16_BLOCK_SIZE,
+				sm4_aesni_avx2_cbc_dec_blk16);
+}
+
+
+static int cfb_decrypt(struct skcipher_request *req)
+{
+	return sm4_avx_cfb_decrypt(req, SM4_CRYPT16_BLOCK_SIZE,
+				sm4_aesni_avx2_cfb_dec_blk16);
+}
+
+static int ctr_crypt(struct skcipher_request *req)
+{
+	return sm4_avx_ctr_crypt(req, SM4_CRYPT16_BLOCK_SIZE,
+				sm4_aesni_avx2_ctr_enc_blk16);
+}
+
+static struct skcipher_alg sm4_aesni_avx2_skciphers[] = {
+	{
+		.base = {
+			.cra_name		= "__ecb(sm4)",
+			.cra_driver_name	= "__ecb-sm4-aesni-avx2",
+			.cra_priority		= 500,
+			.cra_flags		= CRYPTO_ALG_INTERNAL,
+			.cra_blocksize		= SM4_BLOCK_SIZE,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.walksize	= 16 * SM4_BLOCK_SIZE,
+		.setkey		= sm4_skcipher_setkey,
+		.encrypt	= sm4_avx_ecb_encrypt,
+		.decrypt	= sm4_avx_ecb_decrypt,
+	}, {
+		.base = {
+			.cra_name		= "__cbc(sm4)",
+			.cra_driver_name	= "__cbc-sm4-aesni-avx2",
+			.cra_priority		= 500,
+			.cra_flags		= CRYPTO_ALG_INTERNAL,
+			.cra_blocksize		= SM4_BLOCK_SIZE,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.ivsize		= SM4_BLOCK_SIZE,
+		.walksize	= 16 * SM4_BLOCK_SIZE,
+		.setkey		= sm4_skcipher_setkey,
+		.encrypt	= sm4_cbc_encrypt,
+		.decrypt	= cbc_decrypt,
+	}, {
+		.base = {
+			.cra_name		= "__cfb(sm4)",
+			.cra_driver_name	= "__cfb-sm4-aesni-avx2",
+			.cra_priority		= 500,
+			.cra_flags		= CRYPTO_ALG_INTERNAL,
+			.cra_blocksize		= 1,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.ivsize		= SM4_BLOCK_SIZE,
+		.chunksize	= SM4_BLOCK_SIZE,
+		.walksize	= 16 * SM4_BLOCK_SIZE,
+		.setkey		= sm4_skcipher_setkey,
+		.encrypt	= sm4_cfb_encrypt,
+		.decrypt	= cfb_decrypt,
+	}, {
+		.base = {
+			.cra_name		= "__ctr(sm4)",
+			.cra_driver_name	= "__ctr-sm4-aesni-avx2",
+			.cra_priority		= 500,
+			.cra_flags		= CRYPTO_ALG_INTERNAL,
+			.cra_blocksize		= 1,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.ivsize		= SM4_BLOCK_SIZE,
+		.chunksize	= SM4_BLOCK_SIZE,
+		.walksize	= 16 * SM4_BLOCK_SIZE,
+		.setkey		= sm4_skcipher_setkey,
+		.encrypt	= ctr_crypt,
+		.decrypt	= ctr_crypt,
+	}
+};
+
+static struct simd_skcipher_alg *
+simd_sm4_aesni_avx2_skciphers[ARRAY_SIZE(sm4_aesni_avx2_skciphers)];
+
+static int __init sm4_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(sm4_aesni_avx2_skciphers,
+					ARRAY_SIZE(sm4_aesni_avx2_skciphers),
+					simd_sm4_aesni_avx2_skciphers);
+}
+
+static void __exit sm4_exit(void)
+{
+	simd_unregister_skciphers(sm4_aesni_avx2_skciphers,
+				ARRAY_SIZE(sm4_aesni_avx2_skciphers),
+				simd_sm4_aesni_avx2_skciphers);
+}
+
+module_init(sm4_init);
+module_exit(sm4_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Tianjia Zhang <tianjia.zhang@linux.alibaba.com>");
+MODULE_DESCRIPTION("SM4 Cipher Algorithm, AES-NI/AVX2 optimized");
+MODULE_ALIAS_CRYPTO("sm4");
+MODULE_ALIAS_CRYPTO("sm4-aesni-avx2");