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1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ; Copyright(c) 2011-2015 Intel Corporation All rights reserved. | |
3 | ; | |
4 | ; Redistribution and use in source and binary forms, with or without | |
f91f0fd5 | 5 | ; modification, are permitted provided that the following conditions |
7c673cae FG |
6 | ; are met: |
7 | ; * Redistributions of source code must retain the above copyright | |
8 | ; notice, this list of conditions and the following disclaimer. | |
9 | ; * Redistributions in binary form must reproduce the above copyright | |
10 | ; notice, this list of conditions and the following disclaimer in | |
11 | ; the documentation and/or other materials provided with the | |
12 | ; distribution. | |
13 | ; * Neither the name of Intel Corporation nor the names of its | |
14 | ; contributors may be used to endorse or promote products derived | |
15 | ; from this software without specific prior written permission. | |
16 | ; | |
17 | ; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
18 | ; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
19 | ; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
20 | ; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
21 | ; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
22 | ; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
23 | ; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
24 | ; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
25 | ; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
26 | ; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
27 | ; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
28 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
29 | ||
30 | ;;; | |
31 | ;;; gf_2vect_dot_prod_avx512(len, vec, *g_tbls, **buffs, **dests); | |
32 | ;;; | |
33 | ||
34 | %include "reg_sizes.asm" | |
35 | ||
36 | %ifdef HAVE_AS_KNOWS_AVX512 | |
37 | ||
38 | %ifidn __OUTPUT_FORMAT__, elf64 | |
39 | %define arg0 rdi | |
40 | %define arg1 rsi | |
41 | %define arg2 rdx | |
42 | %define arg3 rcx | |
43 | %define arg4 r8 | |
44 | %define arg5 r9 | |
45 | ||
46 | %define tmp r11 | |
47 | %define tmp2 r10 | |
48 | %define tmp3 r12 ; must be saved and restored | |
49 | %define return rax | |
50 | %define PS 8 | |
51 | %define LOG_PS 3 | |
52 | ||
53 | %define func(x) x: | |
54 | %macro FUNC_SAVE 0 | |
55 | push r12 | |
56 | %endmacro | |
57 | %macro FUNC_RESTORE 0 | |
58 | pop r12 | |
59 | %endmacro | |
60 | %endif | |
61 | ||
62 | %ifidn __OUTPUT_FORMAT__, win64 | |
63 | %define arg0 rcx | |
64 | %define arg1 rdx | |
65 | %define arg2 r8 | |
66 | %define arg3 r9 | |
67 | ||
68 | %define arg4 r12 ; must be saved, loaded and restored | |
69 | %define arg5 r15 ; must be saved and restored | |
70 | %define tmp r11 | |
71 | %define tmp2 r10 | |
72 | %define tmp3 r13 ; must be saved and restored | |
73 | %define return rax | |
74 | %define PS 8 | |
75 | %define LOG_PS 3 | |
76 | %define stack_size 9*16 + 5*8 ; must be an odd multiple of 8 | |
77 | %define arg(x) [rsp + stack_size + PS + PS*x] | |
78 | ||
79 | %define func(x) proc_frame x | |
80 | %macro FUNC_SAVE 0 | |
81 | alloc_stack stack_size | |
82 | vmovdqa [rsp + 0*16], xmm6 | |
83 | vmovdqa [rsp + 1*16], xmm7 | |
84 | vmovdqa [rsp + 2*16], xmm8 | |
85 | vmovdqa [rsp + 3*16], xmm9 | |
86 | vmovdqa [rsp + 4*16], xmm10 | |
87 | vmovdqa [rsp + 5*16], xmm11 | |
88 | vmovdqa [rsp + 6*16], xmm12 | |
89 | vmovdqa [rsp + 7*16], xmm13 | |
90 | vmovdqa [rsp + 8*16], xmm14 | |
91 | save_reg r12, 9*16 + 0*8 | |
92 | save_reg r13, 9*16 + 1*8 | |
93 | save_reg r14, 9*16 + 2*8 | |
94 | save_reg r15, 9*16 + 3*8 | |
95 | end_prolog | |
96 | mov arg4, arg(4) | |
97 | %endmacro | |
98 | ||
99 | %macro FUNC_RESTORE 0 | |
100 | vmovdqa xmm6, [rsp + 0*16] | |
101 | vmovdqa xmm7, [rsp + 1*16] | |
102 | vmovdqa xmm8, [rsp + 2*16] | |
103 | vmovdqa xmm9, [rsp + 3*16] | |
104 | vmovdqa xmm10, [rsp + 4*16] | |
105 | vmovdqa xmm11, [rsp + 5*16] | |
106 | vmovdqa xmm12, [rsp + 6*16] | |
107 | vmovdqa xmm13, [rsp + 7*16] | |
108 | vmovdqa xmm14, [rsp + 8*16] | |
109 | mov r12, [rsp + 9*16 + 0*8] | |
110 | mov r13, [rsp + 9*16 + 1*8] | |
111 | mov r14, [rsp + 9*16 + 2*8] | |
112 | mov r15, [rsp + 9*16 + 3*8] | |
113 | add rsp, stack_size | |
114 | %endmacro | |
115 | %endif | |
116 | ||
117 | ||
118 | %define len arg0 | |
119 | %define vec arg1 | |
120 | %define mul_array arg2 | |
121 | %define src arg3 | |
122 | %define dest1 arg4 | |
123 | %define ptr arg5 | |
124 | %define vec_i tmp2 | |
125 | %define dest2 tmp3 | |
126 | %define pos return | |
127 | ||
128 | ||
129 | %ifndef EC_ALIGNED_ADDR | |
130 | ;;; Use Un-aligned load/store | |
131 | %define XLDR vmovdqu8 | |
132 | %define XSTR vmovdqu8 | |
133 | %else | |
134 | ;;; Use Non-temporal load/stor | |
135 | %ifdef NO_NT_LDST | |
136 | %define XLDR vmovdqa | |
137 | %define XSTR vmovdqa | |
138 | %else | |
139 | %define XLDR vmovntdqa | |
140 | %define XSTR vmovntdq | |
141 | %endif | |
142 | %endif | |
143 | ||
144 | %define xmask0f zmm8 | |
145 | %define xgft1_lo zmm7 | |
146 | %define xgft1_loy ymm7 | |
147 | %define xgft1_hi zmm6 | |
148 | %define xgft2_lo zmm5 | |
149 | %define xgft2_loy ymm5 | |
150 | %define xgft2_hi zmm4 | |
151 | ||
152 | %define x0 zmm0 | |
153 | %define xtmpa zmm1 | |
154 | %define xp1 zmm2 | |
155 | %define xp2 zmm3 | |
156 | ||
157 | default rel | |
158 | [bits 64] | |
159 | ||
160 | section .text | |
161 | ||
162 | align 16 | |
f91f0fd5 | 163 | global gf_2vect_dot_prod_avx512:ISAL_SYM_TYPE_FUNCTION |
7c673cae FG |
164 | func(gf_2vect_dot_prod_avx512) |
165 | FUNC_SAVE | |
166 | sub len, 64 | |
167 | jl .return_fail | |
168 | ||
169 | xor pos, pos | |
170 | mov tmp, 0x0f | |
171 | vpbroadcastb xmask0f, tmp ;Construct mask 0x0f0f0f... | |
172 | sal vec, LOG_PS ;vec *= PS. Make vec_i count by PS | |
173 | mov dest2, [dest1+PS] | |
174 | mov dest1, [dest1] | |
175 | ||
176 | .loop64: | |
177 | vpxorq xp1, xp1, xp1 | |
178 | vpxorq xp2, xp2, xp2 | |
179 | mov tmp, mul_array | |
180 | xor vec_i, vec_i | |
181 | ||
182 | .next_vect: | |
183 | mov ptr, [src+vec_i] | |
184 | XLDR x0, [ptr+pos] ;Get next source vector | |
185 | add vec_i, PS | |
186 | ||
187 | vpandq xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0 | |
188 | vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0 | |
189 | vpandq x0, x0, xmask0f ;Mask high src nibble in bits 4-0 | |
190 | ||
191 | vmovdqu8 xgft1_loy, [tmp] ;Load array Ax{00}..{0f}, Ax{00}..{f0} | |
192 | vmovdqu8 xgft2_loy, [tmp+vec*(32/PS)] ;Load array Bx{00}..{0f}, Bx{00}..{f0} | |
193 | add tmp, 32 | |
194 | ||
195 | vshufi64x2 xgft1_hi, xgft1_lo, xgft1_lo, 0x55 | |
196 | vshufi64x2 xgft1_lo, xgft1_lo, xgft1_lo, 0x00 | |
197 | vshufi64x2 xgft2_hi, xgft2_lo, xgft2_lo, 0x55 | |
198 | vshufi64x2 xgft2_lo, xgft2_lo, xgft2_lo, 0x00 | |
199 | ||
200 | vpshufb xgft1_hi, xgft1_hi, x0 ;Lookup mul table of high nibble | |
201 | vpshufb xgft1_lo, xgft1_lo, xtmpa ;Lookup mul table of low nibble | |
202 | vpxorq xgft1_hi, xgft1_hi, xgft1_lo ;GF add high and low partials | |
203 | vpxorq xp1, xp1, xgft1_hi ;xp1 += partial | |
204 | ||
205 | vpshufb xgft2_hi, xgft2_hi, x0 ;Lookup mul table of high nibble | |
206 | vpshufb xgft2_lo, xgft2_lo, xtmpa ;Lookup mul table of low nibble | |
207 | vpxorq xgft2_hi, xgft2_hi, xgft2_lo ;GF add high and low partials | |
208 | vpxorq xp2, xp2, xgft2_hi ;xp2 += partial | |
209 | ||
210 | cmp vec_i, vec | |
211 | jl .next_vect | |
212 | ||
213 | XSTR [dest1+pos], xp1 | |
214 | XSTR [dest2+pos], xp2 | |
215 | ||
216 | add pos, 64 ;Loop on 64 bytes at a time | |
217 | cmp pos, len | |
218 | jle .loop64 | |
219 | ||
220 | lea tmp, [len + 64] | |
221 | cmp pos, tmp | |
222 | je .return_pass | |
223 | ||
224 | ;; Tail len | |
225 | mov pos, len ;Overlapped offset length-64 | |
226 | jmp .loop64 ;Do one more overlap pass | |
227 | ||
228 | .return_pass: | |
229 | mov return, 0 | |
230 | FUNC_RESTORE | |
231 | ret | |
232 | ||
233 | .return_fail: | |
234 | mov return, 1 | |
235 | FUNC_RESTORE | |
236 | ret | |
237 | ||
238 | endproc_frame | |
239 | ||
240 | %else | |
241 | %ifidn __OUTPUT_FORMAT__, win64 | |
242 | global no_gf_2vect_dot_prod_avx512 | |
243 | no_gf_2vect_dot_prod_avx512: | |
244 | %endif | |
245 | %endif ; ifdef HAVE_AS_KNOWS_AVX512 |