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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_3vect_mad_avx(len, vec, vec_i, mul_array, src, dest); | |
32 | ;;; | |
33 | ||
34 | %include "reg_sizes.asm" | |
35 | ||
36 | %define PS 8 | |
37 | ||
38 | %ifidn __OUTPUT_FORMAT__, win64 | |
39 | %define arg0 rcx | |
40 | %define arg0.w ecx | |
41 | %define arg1 rdx | |
42 | %define arg2 r8 | |
43 | %define arg3 r9 | |
44 | %define arg4 r12 | |
45 | %define arg5 r15 | |
46 | %define tmp r11 | |
47 | %define return rax | |
48 | %define return.w eax | |
49 | %define stack_size 16*10 + 3*8 | |
50 | %define arg(x) [rsp + stack_size + PS + PS*x] | |
51 | %define func(x) proc_frame x | |
52 | ||
53 | %macro FUNC_SAVE 0 | |
54 | sub rsp, stack_size | |
55 | vmovdqa [rsp+16*0],xmm6 | |
56 | vmovdqa [rsp+16*1],xmm7 | |
57 | vmovdqa [rsp+16*2],xmm8 | |
58 | vmovdqa [rsp+16*3],xmm9 | |
59 | vmovdqa [rsp+16*4],xmm10 | |
60 | vmovdqa [rsp+16*5],xmm11 | |
61 | vmovdqa [rsp+16*6],xmm12 | |
62 | vmovdqa [rsp+16*7],xmm13 | |
63 | vmovdqa [rsp+16*8],xmm14 | |
64 | vmovdqa [rsp+16*9],xmm15 | |
65 | save_reg r12, 10*16 + 0*8 | |
66 | save_reg r15, 10*16 + 1*8 | |
67 | end_prolog | |
68 | mov arg4, arg(4) | |
69 | mov arg5, arg(5) | |
70 | %endmacro | |
71 | ||
72 | %macro FUNC_RESTORE 0 | |
73 | vmovdqa xmm6, [rsp+16*0] | |
74 | vmovdqa xmm7, [rsp+16*1] | |
75 | vmovdqa xmm8, [rsp+16*2] | |
76 | vmovdqa xmm9, [rsp+16*3] | |
77 | vmovdqa xmm10, [rsp+16*4] | |
78 | vmovdqa xmm11, [rsp+16*5] | |
79 | vmovdqa xmm12, [rsp+16*6] | |
80 | vmovdqa xmm13, [rsp+16*7] | |
81 | vmovdqa xmm14, [rsp+16*8] | |
82 | vmovdqa xmm15, [rsp+16*9] | |
83 | mov r12, [rsp + 10*16 + 0*8] | |
84 | mov r15, [rsp + 10*16 + 1*8] | |
85 | add rsp, stack_size | |
86 | %endmacro | |
87 | ||
88 | %elifidn __OUTPUT_FORMAT__, elf64 | |
89 | %define arg0 rdi | |
90 | %define arg0.w edi | |
91 | %define arg1 rsi | |
92 | %define arg2 rdx | |
93 | %define arg3 rcx | |
94 | %define arg4 r8 | |
95 | %define arg5 r9 | |
96 | %define tmp r11 | |
97 | %define return rax | |
98 | %define return.w eax | |
99 | ||
20effc67 | 100 | %define func(x) x: endbranch |
7c673cae FG |
101 | %define FUNC_SAVE |
102 | %define FUNC_RESTORE | |
103 | %endif | |
104 | ||
105 | ;;; gf_3vect_mad_avx(len, vec, vec_i, mul_array, src, dest) | |
106 | %define len arg0 | |
107 | %define len.w arg0.w | |
108 | %define vec arg1 | |
109 | %define vec_i arg2 | |
110 | %define mul_array arg3 | |
111 | %define src arg4 | |
112 | %define dest1 arg5 | |
113 | %define pos return | |
114 | %define pos.w return.w | |
115 | ||
116 | %define dest2 mul_array | |
117 | %define dest3 vec_i | |
118 | ||
119 | %ifndef EC_ALIGNED_ADDR | |
120 | ;;; Use Un-aligned load/store | |
121 | %define XLDR vmovdqu | |
122 | %define XSTR vmovdqu | |
123 | %else | |
124 | ;;; Use Non-temporal load/stor | |
125 | %ifdef NO_NT_LDST | |
126 | %define XLDR vmovdqa | |
127 | %define XSTR vmovdqa | |
128 | %else | |
129 | %define XLDR vmovntdqa | |
130 | %define XSTR vmovntdq | |
131 | %endif | |
132 | %endif | |
133 | ||
134 | ||
135 | default rel | |
136 | ||
137 | [bits 64] | |
138 | section .text | |
139 | ||
140 | %define xmask0f xmm15 | |
141 | %define xgft1_lo xmm14 | |
142 | %define xgft1_hi xmm13 | |
143 | %define xgft2_lo xmm12 | |
144 | %define xgft2_hi xmm11 | |
145 | %define xgft3_lo xmm10 | |
146 | %define xgft3_hi xmm9 | |
147 | ||
148 | %define x0 xmm0 | |
149 | %define xtmpa xmm1 | |
150 | %define xtmph1 xmm2 | |
151 | %define xtmpl1 xmm3 | |
152 | %define xtmph2 xmm4 | |
153 | %define xtmpl2 xmm5 | |
154 | %define xtmph3 xmm6 | |
155 | %define xtmpl3 xmm7 | |
156 | %define xd1 xmm8 | |
157 | %define xd2 xtmpl1 | |
158 | %define xd3 xtmph1 | |
159 | ||
160 | align 16 | |
20effc67 | 161 | mk_global gf_3vect_mad_avx, function |
7c673cae FG |
162 | func(gf_3vect_mad_avx) |
163 | FUNC_SAVE | |
164 | sub len, 16 | |
165 | jl .return_fail | |
166 | xor pos, pos | |
167 | vmovdqa xmask0f, [mask0f] ;Load mask of lower nibble in each byte | |
168 | ||
169 | sal vec_i, 5 ;Multiply by 32 | |
170 | sal vec, 5 | |
171 | lea tmp, [mul_array + vec_i] | |
172 | vmovdqu xgft1_lo, [tmp] ;Load array Ax{00}, Ax{01}, Ax{02}, ... | |
173 | vmovdqu xgft1_hi, [tmp+16] ; " Ax{00}, Ax{10}, Ax{20}, ... , Ax{f0} | |
174 | vmovdqu xgft2_lo, [tmp+vec] ;Load array Bx{00}, Bx{01}, Bx{02}, ... | |
175 | vmovdqu xgft2_hi, [tmp+vec+16] ; " Bx{00}, Bx{10}, Bx{20}, ... , Bx{f0} | |
176 | vmovdqu xgft3_lo, [tmp+2*vec] ;Load array Cx{00}, Cx{01}, Cx{02}, ... | |
177 | vmovdqu xgft3_hi, [tmp+2*vec+16]; " Cx{00}, Cx{10}, Cx{20}, ... , Cx{f0} | |
178 | mov dest2, [dest1+PS] ; reuse mul_array | |
179 | mov dest3, [dest1+2*PS] ; reuse vec_i | |
180 | mov dest1, [dest1] | |
181 | ||
182 | .loop16: | |
183 | XLDR x0, [src+pos] ;Get next source vector | |
184 | XLDR xd1, [dest1+pos] ;Get next dest vector | |
185 | ||
186 | vpand xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0 | |
187 | vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0 | |
188 | vpand x0, x0, xmask0f ;Mask high src nibble in bits 4-0 | |
189 | ||
190 | ; dest1 | |
191 | vpshufb xtmph1, xgft1_hi, x0 ;Lookup mul table of high nibble | |
192 | vpshufb xtmpl1, xgft1_lo, xtmpa ;Lookup mul table of low nibble | |
193 | vpxor xtmph1, xtmph1, xtmpl1 ;GF add high and low partials | |
194 | vpxor xd1, xd1, xtmph1 ;xd1 += partial | |
195 | ||
196 | XLDR xd2, [dest2+pos] ;reuse xtmpl1. Get next dest vector | |
197 | XLDR xd3, [dest3+pos] ;reuse xtmph1. Get next dest vector | |
198 | ||
199 | ; dest2 | |
200 | vpshufb xtmph2, xgft2_hi, x0 ;Lookup mul table of high nibble | |
201 | vpshufb xtmpl2, xgft2_lo, xtmpa ;Lookup mul table of low nibble | |
202 | vpxor xtmph2, xtmph2, xtmpl2 ;GF add high and low partials | |
203 | vpxor xd2, xd2, xtmph2 ;xd2 += partial | |
204 | ||
205 | ; dest3 | |
206 | vpshufb xtmph3, xgft3_hi, x0 ;Lookup mul table of high nibble | |
207 | vpshufb xtmpl3, xgft3_lo, xtmpa ;Lookup mul table of low nibble | |
208 | vpxor xtmph3, xtmph3, xtmpl3 ;GF add high and low partials | |
209 | vpxor xd3, xd3, xtmph3 ;xd3 += partial | |
210 | ||
211 | XSTR [dest1+pos], xd1 | |
212 | XSTR [dest2+pos], xd2 | |
213 | XSTR [dest3+pos], xd3 | |
214 | ||
215 | add pos, 16 ;Loop on 16 bytes at a time | |
216 | cmp pos, len | |
217 | jle .loop16 | |
218 | ||
219 | lea tmp, [len + 16] | |
220 | cmp pos, tmp | |
221 | je .return_pass | |
222 | ||
223 | .lessthan16: | |
224 | ;; Tail len | |
225 | ;; Do one more overlap pass | |
226 | mov tmp, len ;Overlapped offset length-16 | |
227 | XLDR x0, [src+tmp] ;Get next source vector | |
228 | XLDR xd1, [dest1+tmp] ;Get next dest vector | |
229 | XLDR xd2, [dest2+tmp] ;reuse xtmpl1. Get next dest vector | |
230 | XLDR xd3, [dest3+tmp] ;reuse xtmph1. Get next dest vector | |
231 | ||
232 | sub len, pos | |
233 | ||
234 | movdqa xtmph3, [constip16] ;Load const of i + 16 | |
235 | vpinsrb xtmpl3, xtmpl3, len.w, 15 | |
236 | vpshufb xtmpl3, xtmpl3, xmask0f ;Broadcast len to all bytes | |
237 | vpcmpgtb xtmpl3, xtmpl3, xtmph3 | |
238 | ||
239 | vpand xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0 | |
240 | vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0 | |
241 | vpand x0, x0, xmask0f ;Mask high src nibble in bits 4-0 | |
242 | ||
243 | ; dest1 | |
244 | vpshufb xgft1_hi, xgft1_hi, x0 ;Lookup mul table of high nibble | |
245 | vpshufb xgft1_lo, xgft1_lo, xtmpa ;Lookup mul table of low nibble | |
246 | vpxor xgft1_hi, xgft1_hi, xgft1_lo ;GF add high and low partials | |
247 | vpand xgft1_hi, xgft1_hi, xtmpl3 | |
248 | vpxor xd1, xd1, xgft1_hi | |
249 | ||
250 | ; dest2 | |
251 | vpshufb xgft2_hi, xgft2_hi, x0 ;Lookup mul table of high nibble | |
252 | vpshufb xgft2_lo, xgft2_lo, xtmpa ;Lookup mul table of low nibble | |
253 | vpxor xgft2_hi, xgft2_hi, xgft2_lo ;GF add high and low partials | |
254 | vpand xgft2_hi, xgft2_hi, xtmpl3 | |
255 | vpxor xd2, xd2, xgft2_hi | |
256 | ||
257 | ; dest3 | |
258 | vpshufb xgft3_hi, xgft3_hi, x0 ;Lookup mul table of high nibble | |
259 | vpshufb xgft3_lo, xgft3_lo, xtmpa ;Lookup mul table of low nibble | |
260 | vpxor xgft3_hi, xgft3_hi, xgft3_lo ;GF add high and low partials | |
261 | vpand xgft3_hi, xgft3_hi, xtmpl3 | |
262 | vpxor xd3, xd3, xgft3_hi | |
263 | ||
264 | XSTR [dest1+tmp], xd1 | |
265 | XSTR [dest2+tmp], xd2 | |
266 | XSTR [dest3+tmp], xd3 | |
267 | ||
268 | .return_pass: | |
269 | mov return, 0 | |
270 | FUNC_RESTORE | |
271 | ret | |
272 | ||
273 | .return_fail: | |
274 | mov return, 1 | |
275 | FUNC_RESTORE | |
276 | ret | |
277 | ||
278 | endproc_frame | |
279 | ||
280 | section .data | |
281 | ||
282 | align 16 | |
283 | mask0f: dq 0x0f0f0f0f0f0f0f0f, 0x0f0f0f0f0f0f0f0f | |
284 | constip16: | |
285 | dq 0xf8f9fafbfcfdfeff, 0xf0f1f2f3f4f5f6f7 | |
286 | ||
287 | ;;; func core, ver, snum | |
288 | slversion gf_3vect_mad_avx, 02, 01, 0207 |