mirror of
https://github.com/intel/isa-l.git
synced 2024-12-13 09:52:56 +01:00
erasure_code: optimize AVX2 GFNI 2 vector dot product
Signed-off-by: Marcel Cornu <marcel.d.cornu@intel.com>
This commit is contained in:
Marcel Cornu
Tomasz Kantecki
parent
3f87141d03
commit
0052080f53
@ -80,7 +80,7 @@
|
||||
%define tmp3 r13 ; must be saved and restored
|
||||
%define tmp4 r14 ; must be saved and restored
|
||||
%define tmp5 rdi ; must be saved and restored
|
||||
%define stack_size 4*16 + 5*8 ; must be an odd multiple of 8
|
||||
%define stack_size 7*16 + 5*8 ; must be an odd multiple of 8
|
||||
%define arg(x) [rsp + stack_size + 8 + 8*x]
|
||||
|
||||
%define func(x) proc_frame x
|
||||
@ -90,11 +90,14 @@
|
||||
vmovdqa [rsp + 1*16], xmm7
|
||||
vmovdqa [rsp + 2*16], xmm8
|
||||
vmovdqa [rsp + 3*16], xmm9
|
||||
mov [rsp + 4*16 + 0*8], r12
|
||||
mov [rsp + 4*16 + 1*8], r13
|
||||
mov [rsp + 4*16 + 2*8], r14
|
||||
mov [rsp + 4*16 + 3*8], r15
|
||||
mov [rsp + 4*16 + 4*8], rdi
|
||||
vmovdqa [rsp + 4*16], xmm10
|
||||
vmovdqa [rsp + 5*16], xmm11
|
||||
vmovdqa [rsp + 6*16], xmm12
|
||||
mov [rsp + 7*16 + 0*8], r12
|
||||
mov [rsp + 7*16 + 1*8], r13
|
||||
mov [rsp + 7*16 + 2*8], r14
|
||||
mov [rsp + 7*16 + 3*8], r15
|
||||
mov [rsp + 7*16 + 4*8], rdi
|
||||
end_prolog
|
||||
mov arg4, arg(4)
|
||||
%endmacro
|
||||
@ -104,11 +107,14 @@
|
||||
vmovdqa xmm7, [rsp + 1*16]
|
||||
vmovdqa xmm8, [rsp + 2*16]
|
||||
vmovdqa xmm9, [rsp + 3*16]
|
||||
mov r12, [rsp + 4*16 + 0*8]
|
||||
mov r13, [rsp + 4*16 + 1*8]
|
||||
mov r14, [rsp + 4*16 + 2*8]
|
||||
mov r15, [rsp + 4*16 + 3*8]
|
||||
mov rdi, [rsp + 4*16 + 4*8]
|
||||
vmovdqa xmm10, [rsp + 4*16]
|
||||
vmovdqa xmm11, [rsp + 5*16]
|
||||
vmovdqa xmm12, [rsp + 6*16]
|
||||
mov r12, [rsp + 7*16 + 0*8]
|
||||
mov r13, [rsp + 7*16 + 1*8]
|
||||
mov r14, [rsp + 7*16 + 2*8]
|
||||
mov r15, [rsp + 7*16 + 3*8]
|
||||
mov rdi, [rsp + 7*16 + 4*8]
|
||||
add rsp, stack_size
|
||||
%endmacro
|
||||
%endif
|
||||
@ -142,17 +148,22 @@
|
||||
|
||||
%define x0l ymm0
|
||||
%define x0h ymm1
|
||||
%define x0x ymm2
|
||||
|
||||
%define xgft1 ymm2
|
||||
%define xgft2 ymm3
|
||||
%define xgft1 ymm3
|
||||
%define xgft2 ymm4
|
||||
|
||||
%define xtmp1 ymm4
|
||||
%define xtmp2 ymm5
|
||||
%define xtmp1 ymm5
|
||||
%define xtmp2 ymm6
|
||||
|
||||
%define xp1l ymm6
|
||||
%define xp2l ymm7
|
||||
%define xp1h ymm8
|
||||
%define xp2h ymm9
|
||||
%define xp1l ymm7
|
||||
%define xp2l ymm8
|
||||
|
||||
%define xp1h ymm9
|
||||
%define xp2h ymm10
|
||||
|
||||
%define xp1x ymm11
|
||||
%define xp2x ymm12
|
||||
|
||||
%define x0 x0l
|
||||
%define xp1 xp1l
|
||||
@ -163,6 +174,47 @@ default rel
|
||||
|
||||
section .text
|
||||
|
||||
;;
|
||||
;; Encodes 96 bytes of all "k" sources into 2x 96 bytes (parity disk)
|
||||
;;
|
||||
%macro ENCODE_96B_2 0
|
||||
vpxor xp1l, xp1l, xp1l
|
||||
vpxor xp1h, xp1h, xp1h
|
||||
vpxor xp1x, xp1x, xp1x
|
||||
|
||||
vpxor xp2l, xp2l, xp2l
|
||||
vpxor xp2h, xp2h, xp2h
|
||||
vpxor xp2x, xp2x, xp2x
|
||||
mov tmp, mul_array
|
||||
xor vec_i, vec_i
|
||||
|
||||
%%next_vect:
|
||||
;; load next source vector
|
||||
mov ptr, [src + vec_i]
|
||||
XLDR x0l, [ptr + pos]
|
||||
XLDR x0h, [ptr + pos + 32]
|
||||
XLDR x0x, [ptr + pos + 64]
|
||||
add vec_i, 8
|
||||
|
||||
vbroadcastsd xgft1, [tmp]
|
||||
vbroadcastsd xgft2, [tmp + vec]
|
||||
|
||||
GF_MUL_XOR VEX, x0l, xgft1, xtmp1, xp1l, xgft2, xtmp2, xp2l
|
||||
GF_MUL_XOR VEX, x0h, xgft1, xtmp1, xp1h, xgft2, xtmp2, xp2h
|
||||
GF_MUL_XOR VEX, x0x, xgft1, xtmp1, xp1x, xgft2, xtmp2, xp2x
|
||||
add tmp, 8
|
||||
|
||||
cmp vec_i, vec
|
||||
jl %%next_vect
|
||||
|
||||
XSTR [dest1 + pos], xp1l
|
||||
XSTR [dest1 + pos + 32], xp1h
|
||||
XSTR [dest1 + pos + 64], xp1x
|
||||
XSTR [dest2 + pos], xp2l
|
||||
XSTR [dest2 + pos + 32], xp2h
|
||||
XSTR [dest2 + pos + 64], xp2x
|
||||
%endmacro
|
||||
|
||||
;;
|
||||
;; Encodes 64 bytes of all "k" sources into 2x 64 bytes (parity disks)
|
||||
;;
|
||||
@ -249,10 +301,10 @@ section .text
|
||||
|
||||
;Store updated encoded data
|
||||
lea ptr, [dest1 + pos]
|
||||
simd_store_avx2 ptr, xp1, %%LEN, tmp, vec_i
|
||||
simd_store_avx2 ptr, xp1, %%LEN, tmp, tmp4
|
||||
|
||||
lea ptr, [dest2 + pos]
|
||||
simd_store_avx2 ptr, xp2, %%LEN, tmp, vec_i
|
||||
simd_store_avx2 ptr, xp2, %%LEN, tmp, tmp4
|
||||
%endmacro
|
||||
|
||||
align 16
|
||||
@ -265,20 +317,29 @@ func(gf_2vect_dot_prod_avx2_gfni)
|
||||
mov dest1, [dest]
|
||||
mov dest2, [dest + 8]
|
||||
|
||||
cmp len, 64
|
||||
jb .len_lt_64
|
||||
cmp len, 96
|
||||
jl .len_lt_96
|
||||
|
||||
.loop96:
|
||||
ENCODE_96B_2
|
||||
|
||||
add pos, 96 ;; Loop on 96 bytes at a time first
|
||||
sub len, 96
|
||||
cmp len, 96
|
||||
jge .loop96
|
||||
|
||||
.len_lt_96:
|
||||
cmp len, 64
|
||||
jl .len_lt_64
|
||||
|
||||
.loop64:
|
||||
ENCODE_64B_2
|
||||
|
||||
add pos, 64 ;; Loop on 64 bytes at a time first
|
||||
add pos, 64 ;; encode next 64 bytes
|
||||
sub len, 64
|
||||
cmp len, 64
|
||||
jge .loop64
|
||||
|
||||
.len_lt_64:
|
||||
cmp len, 32
|
||||
jb .len_lt_32
|
||||
jl .len_lt_32
|
||||
|
||||
ENCODE_32B_2
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user