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Diffstat (limited to '')
| -rw-r--r-- | src/isa-l/erasure_code/gf_2vect_dot_prod_sse.asm | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/src/isa-l/erasure_code/gf_2vect_dot_prod_sse.asm b/src/isa-l/erasure_code/gf_2vect_dot_prod_sse.asm new file mode 100644 index 000000000..05a0c28a4 --- /dev/null +++ b/src/isa-l/erasure_code/gf_2vect_dot_prod_sse.asm @@ -0,0 +1,339 @@ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; 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_sse(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 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 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 + 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 + +%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 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 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 + +%ifidn PS,8 ;64-bit code + default rel + [bits 64] +%endif + +section .text + +%ifidn PS,8 ;64-bit code + %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 +%else ;32-bit code + %define xmask0f xmm4 + %define xgft1_lo xmm7 + %define xgft1_hi xmm6 + %define xgft2_lo xgft1_lo + %define xgft2_hi xgft1_hi + + %define x0 xmm0 + %define xtmpa xmm1 + %define xp1 xmm2 + %define xp2 xmm3 +%endif + +align 16 +global gf_2vect_dot_prod_sse:ISAL_SYM_TYPE_FUNCTION + +func(gf_2vect_dot_prod_sse) + FUNC_SAVE + SLDR len, len_m + sub len, 16 + SSTR len_m, len + 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 + SLDR dest1, dest1_m + mov dest2, [dest1+PS] + SSTR dest2_m, dest2 + mov dest1, [dest1] + SSTR dest1_m, dest1 + +.loop16: + pxor xp1, xp1 + pxor xp2, xp2 + mov tmp, mul_array + xor vec_i, vec_i + +.next_vect: + SLDR src, src_m + 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} + %ifidn PS,8 ;64-bit code + 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} + add tmp, 32 + add vec_i, PS + %endif + XLDR x0, [ptr+pos] ;Get next source 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 + + 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 + + %ifidn PS,4 ;32-bit code + 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} + + add tmp, 32 + add vec_i, PS + %endif + 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 + + SLDR dest1, dest1_m + SLDR dest2, dest2_m + XSTR [dest1+pos], xp1 + XSTR [dest2+pos], xp2 + + SLDR len, len_m + 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: dq 0x0f0f0f0f0f0f0f0f, 0x0f0f0f0f0f0f0f0f + +;;; func core, ver, snum +slversion gf_2vect_dot_prod_sse, 00, 04, 0062 |