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Diffstat (limited to 'src/isa-l/erasure_code/gf_3vect_mad_sse.asm')
| -rw-r--r-- | src/isa-l/erasure_code/gf_3vect_mad_sse.asm | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/src/isa-l/erasure_code/gf_3vect_mad_sse.asm b/src/isa-l/erasure_code/gf_3vect_mad_sse.asm new file mode 100644 index 000000000..0d9028bc8 --- /dev/null +++ b/src/isa-l/erasure_code/gf_3vect_mad_sse.asm @@ -0,0 +1,298 @@ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; 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_3vect_mad_sse(len, vec, vec_i, mul_array, src, dest); +;;; + +%include "reg_sizes.asm" + +%define PS 8 +%ifidn __OUTPUT_FORMAT__, win64 + %define arg0 rcx + %define arg0.w ecx + %define arg1 rdx + %define arg2 r8 + %define arg3 r9 + %define arg4 r12 + %define arg5 r15 + %define tmp r11 + %define return rax + %define return.w eax + %define stack_size 16*10 + 3*8 + %define arg(x) [rsp + stack_size + PS + PS*x] + %define func(x) proc_frame x + +%macro FUNC_SAVE 0 + sub rsp, stack_size + movdqa [rsp+16*0],xmm6 + movdqa [rsp+16*1],xmm7 + movdqa [rsp+16*2],xmm8 + movdqa [rsp+16*3],xmm9 + movdqa [rsp+16*4],xmm10 + movdqa [rsp+16*5],xmm11 + movdqa [rsp+16*6],xmm12 + movdqa [rsp+16*7],xmm13 + movdqa [rsp+16*8],xmm14 + movdqa [rsp+16*9],xmm15 + save_reg r12, 10*16 + 0*8 + save_reg r15, 10*16 + 1*8 + end_prolog + mov arg4, arg(4) + mov arg5, arg(5) +%endmacro + +%macro FUNC_RESTORE 0 + movdqa xmm6, [rsp+16*0] + movdqa xmm7, [rsp+16*1] + movdqa xmm8, [rsp+16*2] + movdqa xmm9, [rsp+16*3] + movdqa xmm10, [rsp+16*4] + movdqa xmm11, [rsp+16*5] + movdqa xmm12, [rsp+16*6] + movdqa xmm13, [rsp+16*7] + movdqa xmm14, [rsp+16*8] + movdqa xmm15, [rsp+16*9] + mov r12, [rsp + 10*16 + 0*8] + mov r15, [rsp + 10*16 + 1*8] + add rsp, stack_size +%endmacro + +%elifidn __OUTPUT_FORMAT__, elf64 + %define arg0 rdi + %define arg0.w edi + %define arg1 rsi + %define arg2 rdx + %define arg3 rcx + %define arg4 r8 + %define arg5 r9 + %define tmp r11 + %define return rax + %define return.w eax + + %define func(x) x: + %define FUNC_SAVE + %define FUNC_RESTORE +%endif + +;;; gf_3vect_mad_sse(len, vec, vec_i, mul_array, src, dest) +%define len arg0 +%define len.w arg0.w +%define vec arg1 +%define vec_i arg2 +%define mul_array arg3 +%define src arg4 +%define dest1 arg5 +%define pos return +%define pos.w return.w + +%define dest2 mul_array +%define dest3 vec_i + +%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 xmm15 +%define xgft1_lo xmm14 +%define xgft1_hi xmm13 +%define xgft2_lo xmm12 +%define xgft2_hi xmm11 +%define xgft3_lo xmm10 +%define xgft3_hi xmm9 + +%define x0 xmm0 +%define xtmpa xmm1 +%define xtmph1 xmm2 +%define xtmpl1 xmm3 +%define xtmph2 xmm4 +%define xtmpl2 xmm5 +%define xtmph3 xmm6 +%define xtmpl3 xmm7 +%define xd1 xmm8 +%define xd2 xtmpl1 +%define xd3 xtmph1 + +align 16 +global gf_3vect_mad_sse:ISAL_SYM_TYPE_FUNCTION +func(gf_3vect_mad_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_i, 5 ;Multiply by 32 + sal vec, 5 + lea tmp, [mul_array + vec_i] + + movdqu xgft1_lo, [tmp] ;Load array Ax{00}, Ax{01}, Ax{02}, ... + movdqu xgft1_hi, [tmp+16] ; " Ax{00}, Ax{10}, Ax{20}, ... , Ax{f0} + movdqu xgft2_lo, [tmp+vec] ;Load array Bx{00}, Bx{01}, Bx{02}, ... + movdqu xgft2_hi, [tmp+vec+16] ; " Bx{00}, Bx{10}, Bx{20}, ... , Bx{f0} + movdqu xgft3_lo, [tmp+2*vec] ;Load array Cx{00}, Cx{01}, Cx{02}, ... + movdqu xgft3_hi, [tmp+2*vec+16] ; " Cx{00}, Cx{10}, Cx{20}, ... , Cx{f0} + mov dest2, [dest1+PS] ; reuse mul_array + mov dest3, [dest1+2*PS] ; reuse vec_i + mov dest1, [dest1] + +.loop16: + XLDR x0, [src+pos] ;Get next source vector + movdqa xtmph1, xgft1_hi ;Reload const array registers + movdqa xtmpl1, xgft1_lo + movdqa xtmph2, xgft2_hi ;Reload const array registers + movdqa xtmpl2, xgft2_lo + movdqa xtmph3, xgft3_hi ;Reload const array registers + movdqa xtmpl3, xgft3_lo + + XLDR xd1, [dest1+pos] ;Get next dest vector + + 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 + + ; dest1 + pshufb xtmph1, x0 ;Lookup mul table of high nibble + pshufb xtmpl1, xtmpa ;Lookup mul table of low nibble + pxor xtmph1, xtmpl1 ;GF add high and low partials + pxor xd1, xtmph1 + + XLDR xd2, [dest2+pos] ;reuse xtmpl1. Get next dest vector + XLDR xd3, [dest3+pos] ;reuse xtmph1. Get next dest vector + + ; dest2 + pshufb xtmph2, x0 ;Lookup mul table of high nibble + pshufb xtmpl2, xtmpa ;Lookup mul table of low nibble + pxor xtmph2, xtmpl2 ;GF add high and low partials + pxor xd2, xtmph2 + + ; dest3 + pshufb xtmph3, x0 ;Lookup mul table of high nibble + pshufb xtmpl3, xtmpa ;Lookup mul table of low nibble + pxor xtmph3, xtmpl3 ;GF add high and low partials + pxor xd3, xtmph3 + + XSTR [dest1+pos], xd1 ;Store result + XSTR [dest2+pos], xd2 ;Store result + XSTR [dest3+pos], xd3 ;Store result + + 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 + +.lessthan16: + ;; Tail len + ;; Do one more overlap pass + mov tmp, len ;Overlapped offset length-16 + + XLDR x0, [src+tmp] ;Get next source vector + XLDR xd1, [dest1+tmp] ;Get next dest vector + XLDR xd2, [dest2+tmp] ;reuse xtmpl1. Get next dest vector + XLDR xd3, [dest3+tmp] ;reuse xtmph1. Get next dest vector + + sub len, pos + + movdqa xtmph3, [constip16] ;Load const of i + 16 + pinsrb xtmpl3, len.w, 15 + pshufb xtmpl3, xmask0f ;Broadcast len to all bytes + pcmpgtb xtmpl3, xtmph3 + + 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 + + ; dest1 + 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 + pand xgft1_hi, xtmpl3 + pxor xd1, xgft1_hi + + ; dest2 + 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 + pand xgft2_hi, xtmpl3 + pxor xd2, xgft2_hi + + ; dest3 + pshufb xgft3_hi, x0 ;Lookup mul table of high nibble + pshufb xgft3_lo, xtmpa ;Lookup mul table of low nibble + pxor xgft3_hi, xgft3_lo ;GF add high and low partials + pand xgft3_hi, xtmpl3 + pxor xd3, xgft3_hi + + XSTR [dest1+tmp], xd1 ;Store result + XSTR [dest2+tmp], xd2 ;Store result + XSTR [dest3+tmp], xd3 ;Store result + +.return_pass: + FUNC_RESTORE + mov return, 0 + ret + +.return_fail: + FUNC_RESTORE + mov return, 1 + ret + +endproc_frame + +section .data + +align 16 + +mask0f: + dq 0x0f0f0f0f0f0f0f0f, 0x0f0f0f0f0f0f0f0f +constip16: + dq 0xf8f9fafbfcfdfeff, 0xf0f1f2f3f4f5f6f7 + +;;; func core, ver, snum +slversion gf_3vect_mad_sse, 00, 01, 0206 |