diff options
Diffstat (limited to 'src/spdk/isa-l/raid/pq_gen_avx512.asm')
| -rw-r--r-- | src/spdk/isa-l/raid/pq_gen_avx512.asm | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/src/spdk/isa-l/raid/pq_gen_avx512.asm b/src/spdk/isa-l/raid/pq_gen_avx512.asm new file mode 100644 index 000000000..639cef2ff --- /dev/null +++ b/src/spdk/isa-l/raid/pq_gen_avx512.asm @@ -0,0 +1,235 @@ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; Copyright(c) 2011-2017 Intel Corporation All rights reserved. +; +; 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. +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +;;; Optimized pq of N source vectors using AVX512 +;;; int pq_gen_avx512(int vects, int len, void **array) + +;;; Generates P+Q parity vector from N (vects-2) sources in array of pointers +;;; (**array). Last two pointers are the P and Q destinations respectively. +;;; Vectors must be aligned to 64 bytes if NO_NT_LDST is not defined. +;;; Length must be 32 byte multiple. + +%include "reg_sizes.asm" + +%ifdef HAVE_AS_KNOWS_AVX512 + +%ifidn __OUTPUT_FORMAT__, elf64 + %define arg0 rdi + %define arg1 rsi + %define arg2 rdx + %define arg3 rcx + %define arg4 r8 + %define arg5 r9 + %define tmp r11 + %define tmp3 arg4 + %define return rax + %define func(x) x: + %define FUNC_SAVE + %define FUNC_RESTORE +%endif + +%ifidn __OUTPUT_FORMAT__, win64 + %define arg0 rcx + %define arg1 rdx + %define arg2 r8 + %define arg3 r9 + %define tmp r11 + %define tmp3 r10 + %define return rax + %define stack_size 4*16 + 8 ; must be an odd multiple of 8 + %define func(x) proc_frame x + %macro FUNC_SAVE 0 + alloc_stack stack_size + vmovdqu [rsp + 0*16], xmm6 + vmovdqu [rsp + 1*16], xmm7 + vmovdqu [rsp + 2*16], xmm8 + vmovdqu [rsp + 3*16], xmm9 + end_prolog + %endmacro + + %macro FUNC_RESTORE 0 + vmovdqu xmm6, [rsp + 0*16] + vmovdqu xmm7, [rsp + 1*16] + vmovdqu xmm8, [rsp + 2*16] + vmovdqu xmm9, [rsp + 3*16] + add rsp, stack_size + %endmacro +%endif + +%define vec arg0 +%define len arg1 +%define ptr arg3 +%define pos rax + +%define xp1 zmm0 +%define xq1 zmm1 +%define xtmp1 zmm2 +%define xs1 zmm3 + +%define xp2 zmm4 +%define xq2 zmm5 +%define xtmp2 zmm6 +%define xs2 zmm7 + +%define xzero zmm8 +%define xpoly zmm9 + +%define xp1y ymm0 +%define xq1y ymm1 +%define xtmp1y ymm2 +%define xs1y ymm3 +%define xzeroy ymm8 +%define xpolyy ymm9 + +%define NO_NT_LDST +;;; Use Non-temporal load/stor +%ifdef NO_NT_LDST + %define XLDR vmovdqu8 ;u8 + %define XSTR vmovdqu8 +%else + %define XLDR vmovntdqa + %define XSTR vmovntdq +%endif + +default rel + +[bits 64] +section .text + +align 16 +global pq_gen_avx512:ISAL_SYM_TYPE_FUNCTION +func(pq_gen_avx512) + FUNC_SAVE + sub vec, 3 ;Keep as offset to last source + jng return_fail ;Must have at least 2 sources + cmp len, 0 + je return_pass + test len, (32-1) ;Check alignment of length + jnz return_fail + mov pos, 0 + mov tmp, 0x1d + vpbroadcastb xpoly, tmp + vpxorq xzero, xzero, xzero + cmp len, 128 + jl loop32 + +len_aligned_32bytes: + sub len, 2*64 ;Len points to last block + +loop128: + mov ptr, [arg2+vec*8] ;Fetch last source pointer + mov tmp, vec ;Set tmp to point back to last vector + XLDR xs1, [ptr+pos] ;Preload last vector (source) + XLDR xs2, [ptr+pos+64] ;Preload last vector (source) + vpxorq xp1, xp1, xp1 ;p1 = 0 + vpxorq xp2, xp2, xp2 ;p2 = 0 + vpxorq xq1, xq1, xq1 ;q1 = 0 + vpxorq xq2, xq2, xq2 ;q2 = 0 + +next_vect: + sub tmp, 1 ;Inner loop for each source vector + mov ptr, [arg2+tmp*8] ; get pointer to next vect + vpxorq xq1, xq1, xs1 ; q1 ^= s1 + vpxorq xq2, xq2, xs2 ; q2 ^= s2 + vpxorq xp1, xp1, xs1 ; p1 ^= s1 + vpxorq xp2, xp2, xs2 ; p2 ^= s2 + vpcmpb k1, xq1, xzero, 1 + vpcmpb k2, xq2, xzero, 1 + vpblendmb xtmp1 {k1}, xzero, xpoly + vpblendmb xtmp2 {k2}, xzero, xpoly + XLDR xs1, [ptr+pos] ; Get next vector (source data1) + XLDR xs2, [ptr+pos+64] ; Get next vector (source data2) + vpaddb xq1, xq1, xq1 ; q1 = q1<<1 + vpaddb xq2, xq2, xq2 ; q2 = q2<<1 + vpxorq xq1, xq1, xtmp1 ; q1 = q1<<1 ^ poly_masked + vpxorq xq2, xq2, xtmp2 ; q2 = q2<<1 ^ poly_masked + jg next_vect ; Loop for each vect except 0 + + mov ptr, [arg2+8+vec*8] ;Get address of P parity vector + mov tmp, [arg2+(2*8)+vec*8] ;Get address of Q parity vector + vpxorq xp1, xp1, xs1 ;p1 ^= s1[0] - last source is already loaded + vpxorq xq1, xq1, xs1 ;q1 ^= 1 * s1[0] + vpxorq xp2, xp2, xs2 ;p2 ^= s2[0] + vpxorq xq2, xq2, xs2 ;q2 ^= 1 * s2[0] + XSTR [ptr+pos], xp1 ;Write parity P1 vector + XSTR [ptr+pos+64], xp2 ;Write parity P2 vector + XSTR [tmp+pos], xq1 ;Write parity Q1 vector + XSTR [tmp+pos+64], xq2 ;Write parity Q2 vector + add pos, 2*64 + cmp pos, len + jle loop128 + + ;; ------------------------------ + ;; Do last 32 or 64 Bytes remaining + add len, 2*64 + cmp pos, len + je return_pass + +loop32: + mov ptr, [arg2+vec*8] ;Fetch last source pointer + mov tmp, vec ;Set tmp to point back to last vector + XLDR xs1y, [ptr+pos] ;Preload last vector (source) + vpxorq xp1y, xp1y, xp1y ;p = 0 + vpxorq xq1y, xq1y, xq1y ;q = 0 + +next_vect32: + sub tmp, 1 ;Inner loop for each source vector + mov ptr, [arg2+tmp*8] ; get pointer to next vect + vpxorq xq1y, xq1y, xs1y ; q1 ^= s1 + vpblendvb xtmp1y, xzeroy, xpolyy, xq1y ; xtmp1 = poly or 0x00 + vpxorq xp1y, xp1y, xs1y ; p ^= s + vpaddb xq1y, xq1y, xq1y ; q = q<<1 + vpxorq xq1y, xq1y, xtmp1y ; q = q<<1 ^ poly_masked + XLDR xs1y, [ptr+pos] ; Get next vector (source data) + jg next_vect32 ; Loop for each vect except 0 + + mov ptr, [arg2+8+vec*8] ;Get address of P parity vector + mov tmp, [arg2+(2*8)+vec*8] ;Get address of Q parity vector + vpxorq xp1y, xp1y, xs1y ;p ^= s[0] - last source is already loaded + vpxorq xq1y, xq1y, xs1y ;q ^= 1 * s[0] + XSTR [ptr+pos], xp1y ;Write parity P vector + XSTR [tmp+pos], xq1y ;Write parity Q vector + add pos, 32 + cmp pos, len + jl loop32 + + +return_pass: + mov return, 0 + FUNC_RESTORE + ret + +return_fail: + mov return, 1 + FUNC_RESTORE + ret + +endproc_frame + +%endif ; ifdef HAVE_AS_KNOWS_AVX512 |