;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Copyright(c) 2011-2015 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. ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;; ;;; gf_2vect_dot_prod_avx2(len, vec, *g_tbls, **buffs, **dests); ;;; %include "reg_sizes.asm" %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 tmp.w r11d %define tmp.b r11b %define tmp2 r10 %define tmp3 r9 %define tmp4 r12 ; must be saved and restored %define return rax %macro SLDR 2 %endmacro %define SSTR SLDR %define PS 8 %define LOG_PS 3 %define func(x) x: %macro FUNC_SAVE 0 push r12 %endmacro %macro FUNC_RESTORE 0 pop r12 %endmacro %endif %ifidn __OUTPUT_FORMAT__, win64 %define arg0 rcx %define arg1 rdx %define arg2 r8 %define arg3 r9 %define arg4 r12 ; must be saved, loaded and restored %define tmp r11 %define tmp.w r11d %define tmp.b r11b %define tmp2 r10 %define tmp3 r13 ; must be saved and restored %define tmp4 r14 ; must be saved and restored %define return rax %macro SLDR 2 %endmacro %define SSTR SLDR %define PS 8 %define LOG_PS 3 %define stack_size 3*16 + 3*8 ; must be an odd multiple of 8 %define arg(x) [rsp + stack_size + PS + PS*x] %define func(x) proc_frame x %macro FUNC_SAVE 0 alloc_stack stack_size vmovdqa [rsp + 0*16], xmm6 vmovdqa [rsp + 1*16], xmm7 vmovdqa [rsp + 2*16], xmm8 save_reg r12, 3*16 + 0*8 save_reg r13, 3*16 + 1*8 save_reg r14, 3*16 + 2*8 end_prolog mov arg4, arg(4) %endmacro %macro FUNC_RESTORE 0 vmovdqa xmm6, [rsp + 0*16] vmovdqa xmm7, [rsp + 1*16] vmovdqa xmm8, [rsp + 2*16] mov r12, [rsp + 3*16 + 0*8] mov r13, [rsp + 3*16 + 1*8] mov r14, [rsp + 3*16 + 2*8] add rsp, stack_size %endmacro %endif %ifidn __OUTPUT_FORMAT__, elf32 ;;;================== High Address; ;;; arg4 ;;; arg3 ;;; arg2 ;;; arg1 ;;; arg0 ;;; return ;;;<================= esp of caller ;;; ebp ;;;<================= ebp = esp ;;; var0 ;;; esi ;;; edi ;;; ebx ;;;<================= esp of callee ;;; ;;;================== Low Address; %define PS 4 %define LOG_PS 2 %define func(x) x: %define arg(x) [ebp + PS*2 + PS*x] %define var(x) [ebp - PS - PS*x] %define trans ecx %define trans2 esi %define arg0 trans ;trans and trans2 are for the variables in stack %define arg0_m arg(0) %define arg1 ebx %define arg2 arg2_m %define arg2_m arg(2) %define arg3 trans %define arg3_m arg(3) %define arg4 trans %define arg4_m arg(4) %define tmp edx %define tmp.w edx %define tmp.b dl %define tmp2 edi %define tmp3 trans2 %define tmp4 trans2 %define tmp4_m var(0) %define return eax %macro SLDR 2 ;stack load/restore mov %1, %2 %endmacro %define SSTR SLDR %macro FUNC_SAVE 0 push ebp mov ebp, esp sub esp, PS*1 ;1 local variable push esi push edi push ebx mov arg1, arg(1) %endmacro %macro FUNC_RESTORE 0 pop ebx pop edi pop esi add esp, PS*1 ;1 local variable pop ebp %endmacro %endif ; output formats %define len arg0 %define vec arg1 %define mul_array arg2 %define src arg3 %define dest1 arg4 %define vec_i tmp2 %define ptr tmp3 %define dest2 tmp4 %define pos return %ifidn PS,4 ;32-bit code %define len_m arg0_m %define src_m arg3_m %define dest1_m arg4_m %define dest2_m tmp4_m %endif %ifndef EC_ALIGNED_ADDR ;;; Use Un-aligned load/store %define XLDR vmovdqu %define XSTR vmovdqu %else ;;; Use Non-temporal load/stor %ifdef NO_NT_LDST %define XLDR vmovdqa %define XSTR vmovdqa %else %define XLDR vmovntdqa %define XSTR vmovntdq %endif %endif %ifidn PS,8 ;64-bit code default rel [bits 64] %endif section .text %ifidn PS,8 ;64-bit code %define xmask0f ymm8 %define xmask0fx xmm8 %define xgft1_lo ymm7 %define xgft1_hi ymm6 %define xgft2_lo ymm5 %define xgft2_hi ymm4 %define x0 ymm0 %define xtmpa ymm1 %define xp1 ymm2 %define xp2 ymm3 %else ;32-bit code %define xmask0f ymm7 %define xmask0fx xmm7 %define xgft1_lo ymm5 %define xgft1_hi ymm4 %define xgft2_lo xgft1_lo %define xgft2_hi xgft1_hi %define x0 ymm0 %define xtmpa ymm1 %define xp1 ymm2 %define xp2 ymm3 %endif align 16 global gf_2vect_dot_prod_avx2:function func(gf_2vect_dot_prod_avx2) FUNC_SAVE SLDR len, len_m sub len, 32 SSTR len_m, len jl .return_fail xor pos, pos mov tmp.b, 0x0f vpinsrb xmask0fx, xmask0fx, tmp.w, 0 vpbroadcastb xmask0f, xmask0fx ;Construct mask 0x0f0f0f... sal vec, LOG_PS ;vec *= PS. Make vec_i count by PS SLDR dest1, dest1_m mov dest2, [dest1+PS] SSTR dest2_m, dest2 mov dest1, [dest1] SSTR dest1_m, dest1 .loop32: vpxor xp1, xp1 vpxor xp2, xp2 mov tmp, mul_array xor vec_i, vec_i .next_vect: SLDR src, src_m mov ptr, [src+vec_i] vmovdqu xgft1_lo, [tmp] ;Load array Ax{00}, Ax{01}, ..., Ax{0f} ; " Ax{00}, Ax{10}, ..., Ax{f0} vperm2i128 xgft1_hi, xgft1_lo, xgft1_lo, 0x11 ; swapped to hi | hi vperm2i128 xgft1_lo, xgft1_lo, xgft1_lo, 0x00 ; swapped to lo | lo %ifidn PS,8 ; 64-bit code vmovdqu xgft2_lo, [tmp+vec*(32/PS)] ;Load array Bx{00}, Bx{01}, ..., Bx{0f} ; " Bx{00}, Bx{10}, ..., Bx{f0} vperm2i128 xgft2_hi, xgft2_lo, xgft2_lo, 0x11 ; swapped to hi | hi vperm2i128 xgft2_lo, xgft2_lo, xgft2_lo, 0x00 ; swapped to lo | lo XLDR x0, [ptr+pos] ;Get next source vector add tmp, 32 add vec_i, PS %else XLDR x0, [ptr+pos] ;Get next source vector %endif vpand xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0 vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0 vpand x0, x0, xmask0f ;Mask high src nibble in bits 4-0 vpshufb xgft1_hi, x0 ;Lookup mul table of high nibble vpshufb xgft1_lo, xtmpa ;Lookup mul table of low nibble vpxor xgft1_hi, xgft1_lo ;GF add high and low partials vpxor xp1, xgft1_hi ;xp1 += partial %ifidn PS,4 ; 32-bit code vmovdqu xgft2_lo, [tmp+vec*(32/PS)] ;Load array Bx{00}, Bx{01}, ..., Bx{0f} ; " Bx{00}, Bx{10}, ..., Bx{f0} vperm2i128 xgft2_hi, xgft2_lo, xgft2_lo, 0x11 ; swapped to hi | hi vperm2i128 xgft2_lo, xgft2_lo, xgft2_lo, 0x00 ; swapped to lo | lo add tmp, 32 add vec_i, PS %endif vpshufb xgft2_hi, x0 ;Lookup mul table of high nibble vpshufb xgft2_lo, xtmpa ;Lookup mul table of low nibble vpxor xgft2_hi, xgft2_lo ;GF add high and low partials vpxor xp2, xgft2_hi ;xp2 += partial cmp vec_i, vec jl .next_vect SLDR dest1, dest1_m SLDR dest2, dest2_m XSTR [dest1+pos], xp1 XSTR [dest2+pos], xp2 SLDR len, len_m add pos, 32 ;Loop on 32 bytes at a time cmp pos, len jle .loop32 lea tmp, [len + 32] cmp pos, tmp je .return_pass ;; Tail len mov pos, len ;Overlapped offset length-16 jmp .loop32 ;Do one more overlap pass .return_pass: mov return, 0 FUNC_RESTORE ret .return_fail: mov return, 1 FUNC_RESTORE ret endproc_frame section .data ;;; func core, ver, snum slversion gf_2vect_dot_prod_avx2, 04, 05, 0196