;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Copyright(c) 2011-2014 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_sse(len, vec, *g_tbls, **buffs, **dests); ;;; ;;; Author: Gregory Tucker %ifidn __OUTPUT_FORMAT__, macho64 %define GF_2VECT_DOT_PROD_SSE _gf_2vect_dot_prod_sse %else %define GF_2VECT_DOT_PROD_SSE gf_2vect_dot_prod_sse %endif %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 tmp2 r10 %define tmp3 r9 %define tmp4 r12 ; must be saved and restored %define return rax %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__, macho64 %define arg0 rdi %define arg1 rsi %define arg2 rdx %define arg3 rcx %define arg4 r8 %define arg5 r9 %define tmp r11 %define tmp2 r10 %define tmp3 r9 %define tmp4 r12 ; must be saved and restored %define return rax %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 tmp2 r10 %define tmp3 r13 ; must be saved and restored %define tmp4 r14 ; must be saved and restored %define return rax %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 save_xmm128 xmm6, 0*16 save_xmm128 xmm7, 1*16 save_xmm128 xmm8, 2*16 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 movdqa xmm6, [rsp + 0*16] movdqa xmm7, [rsp + 1*16] movdqa 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 %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 %ifndef EC_ALIGNED_ADDR ;;; Use Un-aligned load/store %define XLDR movdqu %define XSTR movdqu %else ;;; Use Non-temporal load/stor %ifdef NO_NT_LDST %define XLDR movdqa %define XSTR movdqa %else %define XLDR movntdqa %define XSTR movntdq %endif %endif default rel [bits 64] section .text %define xmask0f xmm8 %define xgft1_lo xmm7 %define xgft1_hi xmm6 %define xgft2_lo xmm5 %define xgft2_hi xmm4 %define x0 xmm0 %define xtmpa xmm1 %define xp1 xmm2 %define xp2 xmm3 align 16 global GF_2VECT_DOT_PROD_SSE:function func(GF_2VECT_DOT_PROD_SSE) FUNC_SAVE sub len, 16 jl .return_fail xor pos, pos movdqa xmask0f, [mask0f] ;Load mask of lower nibble in each byte sal vec, LOG_PS ;vec *= PS. Make vec_i count by PS mov dest2, [dest1+PS] mov dest1, [dest1] .loop16 pxor xp1, xp1 pxor xp2, xp2 mov tmp, mul_array xor vec_i, vec_i .next_vect mov ptr, [src+vec_i] movdqu xgft1_lo, [tmp] ;Load array Ax{00}, Ax{01}, ..., Ax{0f} movdqu xgft1_hi, [tmp+16] ; " Ax{00}, Ax{10}, ..., Ax{f0} movdqu xgft2_lo, [tmp+vec*(32/PS)] ;Load array Bx{00}, Bx{01}, ..., Bx{0f} movdqu xgft2_hi, [tmp+vec*(32/PS)+16] ; " Bx{00}, Bx{10}, ..., Bx{f0} XLDR x0, [ptr+pos] ;Get next source vector add tmp, 32 add vec_i, PS movdqa xtmpa, x0 ;Keep unshifted copy of src psraw x0, 4 ;Shift to put high nibble into bits 4-0 pand x0, xmask0f ;Mask high src nibble in bits 4-0 pand xtmpa, xmask0f ;Mask low src nibble in bits 4-0 pshufb xgft1_hi, x0 ;Lookup mul table of high nibble pshufb xgft1_lo, xtmpa ;Lookup mul table of low nibble pxor xgft1_hi, xgft1_lo ;GF add high and low partials pxor xp1, xgft1_hi ;xp1 += partial pshufb xgft2_hi, x0 ;Lookup mul table of high nibble pshufb xgft2_lo, xtmpa ;Lookup mul table of low nibble pxor xgft2_hi, xgft2_lo ;GF add high and low partials pxor xp2, xgft2_hi ;xp2 += partial cmp vec_i, vec jl .next_vect XSTR [dest1+pos], xp1 XSTR [dest2+pos], xp2 add pos, 16 ;Loop on 16 bytes at a time cmp pos, len jle .loop16 lea tmp, [len + 16] cmp pos, tmp je .return_pass ;; Tail len mov pos, len ;Overlapped offset length-16 jmp .loop16 ;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 align 16 mask0f: ddq 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f %macro slversion 4 global %1_slver_%2%3%4 global %1_slver %1_slver: %1_slver_%2%3%4: dw 0x%4 db 0x%3, 0x%2 %endmacro ;;; func core, ver, snum slversion GF_2VECT_DOT_PROD_SSE, 00, 02, 0062