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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 | |
5 | ; modification, are permitted provided that the following conditions | |
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_4vect_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 tmp2 r10 | |
48 | %define tmp3 r13 | |
49 | %define return rax | |
50 | %define return.w eax | |
51 | %define stack_size 16*10 + 3*8 | |
52 | %define arg(x) [rsp + stack_size + PS + PS*x] | |
53 | %define func(x) proc_frame x | |
54 | ||
55 | %macro FUNC_SAVE 0 | |
56 | sub rsp, stack_size | |
57 | movdqa [rsp+16*0],xmm6 | |
58 | movdqa [rsp+16*1],xmm7 | |
59 | movdqa [rsp+16*2],xmm8 | |
60 | movdqa [rsp+16*3],xmm9 | |
61 | movdqa [rsp+16*4],xmm10 | |
62 | movdqa [rsp+16*5],xmm11 | |
63 | movdqa [rsp+16*6],xmm12 | |
64 | movdqa [rsp+16*7],xmm13 | |
65 | movdqa [rsp+16*8],xmm14 | |
66 | movdqa [rsp+16*9],xmm15 | |
67 | save_reg r12, 10*16 + 0*8 | |
68 | save_reg r13, 10*16 + 1*8 | |
69 | save_reg r15, 10*16 + 2*8 | |
70 | end_prolog | |
71 | mov arg4, arg(4) | |
72 | mov arg5, arg(5) | |
73 | %endmacro | |
74 | ||
75 | %macro FUNC_RESTORE 0 | |
76 | movdqa xmm6, [rsp+16*0] | |
77 | movdqa xmm7, [rsp+16*1] | |
78 | movdqa xmm8, [rsp+16*2] | |
79 | movdqa xmm9, [rsp+16*3] | |
80 | movdqa xmm10, [rsp+16*4] | |
81 | movdqa xmm11, [rsp+16*5] | |
82 | movdqa xmm12, [rsp+16*6] | |
83 | movdqa xmm13, [rsp+16*7] | |
84 | movdqa xmm14, [rsp+16*8] | |
85 | movdqa xmm15, [rsp+16*9] | |
86 | mov r12, [rsp + 10*16 + 0*8] | |
87 | mov r13, [rsp + 10*16 + 1*8] | |
88 | mov r15, [rsp + 10*16 + 2*8] | |
89 | add rsp, stack_size | |
90 | %endmacro | |
91 | ||
92 | %elifidn __OUTPUT_FORMAT__, elf64 | |
93 | %define arg0 rdi | |
94 | %define arg0.w edi | |
95 | %define arg1 rsi | |
96 | %define arg2 rdx | |
97 | %define arg3 rcx | |
98 | %define arg4 r8 | |
99 | %define arg5 r9 | |
100 | %define tmp r11 | |
101 | %define tmp2 r10 | |
102 | %define tmp3 r12 | |
103 | %define return rax | |
104 | %define return.w eax | |
105 | ||
106 | %define func(x) x: | |
107 | %macro FUNC_SAVE 0 | |
108 | push r12 | |
109 | %endmacro | |
110 | %macro FUNC_RESTORE 0 | |
111 | pop r12 | |
112 | %endmacro | |
113 | %endif | |
114 | ||
115 | ;;; gf_4vect_mad_avx(len, vec, vec_i, mul_array, src, dest) | |
116 | %define len arg0 | |
117 | %define len.w arg0.w | |
118 | %define vec arg1 | |
119 | %define vec_i arg2 | |
120 | %define mul_array arg3 | |
121 | %define src arg4 | |
122 | %define dest1 arg5 | |
123 | %define pos return | |
124 | %define pos.w return.w | |
125 | ||
126 | %define dest2 mul_array | |
127 | %define dest3 tmp2 | |
128 | %define dest4 vec_i | |
129 | ||
130 | %ifndef EC_ALIGNED_ADDR | |
131 | ;;; Use Un-aligned load/store | |
132 | %define XLDR vmovdqu | |
133 | %define XSTR vmovdqu | |
134 | %else | |
135 | ;;; Use Non-temporal load/stor | |
136 | %ifdef NO_NT_LDST | |
137 | %define XLDR vmovdqa | |
138 | %define XSTR vmovdqa | |
139 | %else | |
140 | %define XLDR vmovntdqa | |
141 | %define XSTR vmovntdq | |
142 | %endif | |
143 | %endif | |
144 | ||
145 | ||
146 | default rel | |
147 | ||
148 | [bits 64] | |
149 | section .text | |
150 | ||
151 | %define xmask0f xmm15 | |
152 | %define xgft3_hi xmm14 | |
153 | %define xgft4_hi xmm13 | |
154 | %define xgft4_lo xmm12 | |
155 | ||
156 | %define x0 xmm0 | |
157 | %define xtmpa xmm1 | |
158 | %define xtmph1 xmm2 | |
159 | %define xtmpl1 xmm3 | |
160 | %define xtmph2 xmm4 | |
161 | %define xtmpl2 xmm5 | |
162 | %define xtmph3 xmm6 | |
163 | %define xtmpl3 xmm7 | |
164 | %define xtmph4 xmm8 | |
165 | %define xtmpl4 xmm9 | |
166 | %define xd1 xmm10 | |
167 | %define xd2 xmm11 | |
168 | %define xd3 xtmph1 | |
169 | %define xd4 xtmpl1 | |
170 | ||
171 | align 16 | |
172 | global gf_4vect_mad_avx:function | |
173 | func(gf_4vect_mad_avx) | |
174 | FUNC_SAVE | |
175 | sub len, 16 | |
176 | jl .return_fail | |
177 | xor pos, pos | |
178 | vmovdqa xmask0f, [mask0f] ;Load mask of lower nibble in each byte | |
179 | ||
180 | mov tmp, vec | |
181 | ||
182 | sal vec_i, 5 ;Multiply by 32 | |
183 | lea tmp3, [mul_array + vec_i] | |
184 | ||
185 | sal tmp, 6 ;Multiply by 64 | |
186 | vmovdqu xgft3_hi, [tmp3+tmp+16] ; " Cx{00}, Cx{10}, Cx{20}, ... , Cx{f0} | |
187 | sal vec, 5 ;Multiply by 32 | |
188 | add tmp, vec | |
189 | vmovdqu xgft4_lo, [tmp3+tmp] ;Load array Dx{00}, Dx{01}, Dx{02}, ... | |
190 | vmovdqu xgft4_hi, [tmp3+tmp+16] ; " Dx{00}, Dx{10}, Dx{20}, ... , Dx{f0} | |
191 | ||
192 | mov dest2, [dest1+PS] ; reuse mul_array | |
193 | mov dest3, [dest1+2*PS] | |
194 | mov dest4, [dest1+3*PS] ; reuse vec_i | |
195 | mov dest1, [dest1] | |
196 | ||
197 | .loop16: | |
198 | XLDR x0, [src+pos] ;Get next source vector | |
199 | vmovdqu xtmph1, [tmp3+16] ; " Ax{00}, Ax{10}, Ax{20}, ... , Ax{f0} | |
200 | vmovdqu xtmpl1, [tmp3] ;Load array Ax{00}, Ax{01}, Ax{02}, ... | |
201 | vmovdqu xtmph2, [tmp3+vec+16] ; " Bx{00}, Bx{10}, Bx{20}, ... , Bx{f0} | |
202 | vmovdqu xtmpl2, [tmp3+vec] ;Load array Bx{00}, Bx{01}, Bx{02}, ... | |
203 | vmovdqu xtmpl3, [tmp3+2*vec] ;Load array Cx{00}, Cx{01}, Cx{02}, ... | |
204 | ||
205 | XLDR xd1, [dest1+pos] ;Get next dest vector | |
206 | XLDR xd2, [dest2+pos] ;Get next dest vector | |
207 | ||
208 | vpand xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0 | |
209 | vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0 | |
210 | vpand x0, x0, xmask0f ;Mask high src nibble in bits 4-0 | |
211 | ||
212 | ; dest1 | |
213 | vpshufb xtmph1, xtmph1, x0 ;Lookup mul table of high nibble | |
214 | vpshufb xtmpl1, xtmpl1, xtmpa ;Lookup mul table of low nibble | |
215 | vpxor xtmph1, xtmph1, xtmpl1 ;GF add high and low partials | |
216 | vpxor xd1, xd1, xtmph1 | |
217 | ||
218 | XLDR xd3, [dest3+pos] ;Reuse xtmph1, Get next dest vector | |
219 | XLDR xd4, [dest4+pos] ;Reuse xtmpl1, Get next dest vector | |
220 | ||
221 | ; dest2 | |
222 | vpshufb xtmph2, xtmph2, x0 ;Lookup mul table of high nibble | |
223 | vpshufb xtmpl2, xtmpl2, xtmpa ;Lookup mul table of low nibble | |
224 | vpxor xtmph2, xtmph2, xtmpl2 ;GF add high and low partials | |
225 | vpxor xd2, xd2, xtmph2 | |
226 | ||
227 | ; dest3 | |
228 | vpshufb xtmph3, xgft3_hi, x0 ;Lookup mul table of high nibble | |
229 | vpshufb xtmpl3, xtmpl3, xtmpa ;Lookup mul table of low nibble | |
230 | vpxor xtmph3, xtmph3, xtmpl3 ;GF add high and low partials | |
231 | vpxor xd3, xd3, xtmph3 | |
232 | ||
233 | ; dest4 | |
234 | vpshufb xtmph4, xgft4_hi, x0 ;Lookup mul table of high nibble | |
235 | vpshufb xtmpl4, xgft4_lo, xtmpa ;Lookup mul table of low nibble | |
236 | vpxor xtmph4, xtmph4, xtmpl4 ;GF add high and low partials | |
237 | vpxor xd4, xd4, xtmph4 | |
238 | ||
239 | XSTR [dest1+pos], xd1 ;Store result | |
240 | XSTR [dest2+pos], xd2 ;Store result | |
241 | XSTR [dest3+pos], xd3 ;Store result | |
242 | XSTR [dest4+pos], xd4 ;Store result | |
243 | ||
244 | add pos, 16 ;Loop on 16 bytes at a time | |
245 | cmp pos, len | |
246 | jle .loop16 | |
247 | ||
248 | lea tmp, [len + 16] | |
249 | cmp pos, tmp | |
250 | je .return_pass | |
251 | ||
252 | .lessthan16: | |
253 | ;; Tail len | |
254 | ;; Do one more overlap pass | |
255 | ||
256 | mov tmp, len ;Overlapped offset length-16 | |
257 | ||
258 | XLDR x0, [src+tmp] ;Get next source vector | |
259 | ||
260 | vmovdqu xtmph1, [tmp3+16] ; " Ax{00}, Ax{10}, Ax{20}, ... , Ax{f0} | |
261 | vmovdqu xtmpl1, [tmp3] ;Load array Ax{00}, Ax{01}, Ax{02}, ... | |
262 | vmovdqu xtmph2, [tmp3+vec+16] ; " Bx{00}, Bx{10}, Bx{20}, ... , Bx{f0} | |
263 | vmovdqu xtmpl2, [tmp3+vec] ;Load array Bx{00}, Bx{01}, Bx{02}, ... | |
264 | vmovdqu xtmpl3, [tmp3+2*vec] ;Load array Cx{00}, Cx{01}, Cx{02}, ... | |
265 | ||
266 | XLDR xd1, [dest1+tmp] ;Get next dest vector | |
267 | XLDR xd2, [dest2+tmp] ;Get next dest vector | |
268 | XLDR xtmph4, [dest3+tmp] ;Get next dest vector | |
269 | ||
270 | sub len, pos | |
271 | ||
272 | vmovdqa xtmpl4, [constip16] ;Load const of i + 16 | |
273 | vpinsrb xtmph3, xtmph3, len.w, 15 | |
274 | vpshufb xtmph3, xtmph3, xmask0f ;Broadcast len to all bytes | |
275 | vpcmpgtb xtmph3, xtmph3, xtmpl4 | |
276 | ||
277 | XLDR xtmpl4, [dest4+tmp] ;Get next dest vector | |
278 | ||
279 | vpand xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0 | |
280 | vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0 | |
281 | vpand x0, x0, xmask0f ;Mask high src nibble in bits 4-0 | |
282 | ||
283 | ; dest1 | |
284 | vpshufb xtmph1, xtmph1, x0 ;Lookup mul table of high nibble | |
285 | vpshufb xtmpl1, xtmpl1, xtmpa ;Lookup mul table of low nibble | |
286 | vpxor xtmph1, xtmph1, xtmpl1 ;GF add high and low partials | |
287 | vpand xtmph1, xtmph1, xtmph3 | |
288 | vpxor xd1, xd1, xtmph1 | |
289 | ||
290 | ; dest2 | |
291 | vpshufb xtmph2, xtmph2, x0 ;Lookup mul table of high nibble | |
292 | vpshufb xtmpl2, xtmpl2, xtmpa ;Lookup mul table of low nibble | |
293 | vpxor xtmph2, xtmph2, xtmpl2 ;GF add high and low partials | |
294 | vpand xtmph2, xtmph2, xtmph3 | |
295 | vpxor xd2, xd2, xtmph2 | |
296 | ||
297 | ; dest3 | |
298 | vpshufb xgft3_hi, xgft3_hi, x0 ;Lookup mul table of high nibble | |
299 | vpshufb xtmpl3, xtmpl3, xtmpa ;Lookup mul table of low nibble | |
300 | vpxor xgft3_hi, xgft3_hi, xtmpl3 ;GF add high and low partials | |
301 | vpand xgft3_hi, xgft3_hi, xtmph3 | |
302 | vpxor xtmph4, xtmph4, xgft3_hi | |
303 | ||
304 | ; dest4 | |
305 | vpshufb xgft4_hi, xgft4_hi, x0 ;Lookup mul table of high nibble | |
306 | vpshufb xgft4_lo, xgft4_lo, xtmpa ;Lookup mul table of low nibble | |
307 | vpxor xgft4_hi, xgft4_hi, xgft4_lo ;GF add high and low partials | |
308 | vpand xgft4_hi, xgft4_hi, xtmph3 | |
309 | vpxor xtmpl4, xtmpl4, xgft4_hi | |
310 | ||
311 | XSTR [dest1+tmp], xd1 ;Store result | |
312 | XSTR [dest2+tmp], xd2 ;Store result | |
313 | XSTR [dest3+tmp], xtmph4 ;Store result | |
314 | XSTR [dest4+tmp], xtmpl4 ;Store result | |
315 | ||
316 | .return_pass: | |
317 | mov return, 0 | |
318 | FUNC_RESTORE | |
319 | ret | |
320 | ||
321 | .return_fail: | |
322 | mov return, 1 | |
323 | FUNC_RESTORE | |
324 | ret | |
325 | ||
326 | endproc_frame | |
327 | ||
328 | section .data | |
329 | ||
330 | align 16 | |
331 | mask0f: ddq 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f | |
332 | constip16: | |
333 | ddq 0xf0f1f2f3f4f5f6f7f8f9fafbfcfdfeff | |
334 | ||
335 | ;;; func core, ver, snum | |
336 | slversion gf_4vect_mad_avx, 02, 01, 020a |