2 * Copyright (c) 2017 ARM Limited.
4 * SPDX-License-Identifier: MIT
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 inline void a64_sgemm_asimd_12x8_a53(const float *Apanel, const float *Bpanel, float *Cpanel, int ablocks, int bblocks, int K) {
27 const float *a_ptr = Apanel;
28 float *c_ptr = Cpanel;
30 for (int yb=0; yb<ablocks; yb++) {
31 const float *a_ptr0 = a_ptr;
32 const float *b_ptr = Bpanel;
34 for (int xb=0; xb<bblocks; xb++) {
36 // Fix up for odd lengths - set a flag if K is odd, but make
37 // sure we round up the iteration count.
39 int k = ((K+1)/2) - 1;
41 register float32x4_t a0 asm("v0");
42 register float32x4_t a1 asm("v1");
43 register float32x4_t b0 asm("v2");
44 register float32x4_t b1 asm("v3");
45 register float32x4_t b2 asm("v4");
46 register float32x4_t a0a asm("v5");
47 register float32x4_t a1a asm("v6");
50 // Initialize result registers, load initial operands, prime prefetches.
52 "ldr %q[a0], [%[a_ptr]]\n"
54 "ldr %q[b0], [%[b_ptr]]\n"
56 "ldr %q[a1], [%[a_ptr], #16]\n"
58 "ldr %q[b1], [%[b_ptr], #16]\n"
60 ASM_PREFETCH("[%[b_ptr], #64]")
62 ASM_PREFETCH("[%[a_ptr], #64]")
64 ASM_PREFETCH("[%[b_ptr], #128]")
66 ASM_PREFETCH("[%[a_ptr], #128]")
68 ASM_PREFETCH("[%[b_ptr], #192]")
70 ASM_PREFETCH("[%[b_ptr], #256]")
72 ASM_PREFETCH("[%[a_ptr], #192]")
74 ASM_PREFETCH("[%[b_ptr], #320]")
76 ASM_PREFETCH("[%[a_ptr], #256]")
78 ASM_PREFETCH("[%[b_ptr], #384]")
90 // Skip loop if we are doing zero iterations of it.
95 "ldr %d[b2], [%[b_ptr], #32]\n"
97 "fmla v8.4s , %[b0].4s, %[a0].s[0]\n"
98 "ldr x20, [%[b_ptr], #40]\n"
99 "fmla v9.4s , %[b0].4s, %[a0].s[1]\n"
100 "subs %w[k], %w[k], #1\n"
101 "fmla v10.4s, %[b0].4s, %[a0].s[2]\n"
103 "ldr %d[a0a], [%[a_ptr], #32]\n"
104 "ins %[b2].d[1], x20\n"
105 "fmla v11.4s, %[b0].4s, %[a0].s[3]\n"
106 "ldr x20, [%[a_ptr], #40]\n"
107 "fmla v12.4s, %[b0].4s, %[a1].s[0]\n"
108 "fmla v13.4s, %[b0].4s, %[a1].s[1]\n"
110 "ldr %d[a1a], [%[a_ptr], #48]\n"
111 "ins %[a0a].d[1], x20\n"
112 "fmla v14.4s, %[b0].4s, %[a1].s[2]\n"
113 "ldr x20, [%[a_ptr], #56]\n"
114 "fmla v15.4s, %[b0].4s, %[a1].s[3]\n"
115 "fmla v16.4s, %[b1].4s, %[a0].s[0]\n"
117 "ldr %d[b0], [%[b_ptr], #48]\n"
118 "ins %[a1a].d[1], x20\n"
119 "fmla v17.4s, %[b1].4s, %[a0].s[1]\n"
120 "ldr x20, [%[b_ptr], #56]\n"
121 "fmla v18.4s, %[b1].4s, %[a0].s[2]\n"
122 "fmla v19.4s, %[b1].4s, %[a0].s[3]\n"
124 ASM_PREFETCH("[%[a_ptr], #320]")
125 "ins %[b0].d[1], x20\n"
126 "fmla v20.4s, %[b1].4s, %[a1].s[0]\n"
127 "fmla v21.4s, %[b1].4s, %[a1].s[1]\n"
128 "fmla v22.4s, %[b1].4s, %[a1].s[2]\n"
130 ASM_PREFETCH("[%[b_ptr], #448]")
132 "fmla v23.4s, %[b1].4s, %[a1].s[3]\n"
133 "fmla v24.4s, %[b2].4s, %[a0].s[0]\n"
134 "fmla v25.4s, %[b2].4s, %[a0].s[1]\n"
136 "ldr %d[b1], [%[b_ptr], #64]\n"
138 "fmla v26.4s, %[b2].4s, %[a0].s[2]\n"
139 "ldr x20, [%[b_ptr], #72]\n"
140 "fmla v27.4s, %[b2].4s, %[a0].s[3]\n"
141 "fmla v28.4s, %[b2].4s, %[a1].s[0]\n"
143 ASM_PREFETCH("[%[b_ptr], #512]")
144 "ins %[b1].d[1], x20\n"
145 "fmla v29.4s, %[b2].4s, %[a1].s[1]\n"
146 "fmla v30.4s, %[b2].4s, %[a1].s[2]\n"
147 "fmla v31.4s, %[b2].4s, %[a1].s[3]\n"
150 "ldr %d[b2], [%[b_ptr], #80]\n"
152 "fmla v8.4s , %[b0].4s, %[a0a].s[0]\n"
153 "ldr x20, [%[b_ptr], #88]\n"
154 "fmla v9.4s , %[b0].4s, %[a0a].s[1]\n"
155 "fmla v10.4s, %[b0].4s, %[a0a].s[2]\n"
157 "ldr %d[a0], [%[a_ptr], #64]\n"
158 "ins %[b2].d[1], x20\n"
159 "fmla v11.4s, %[b0].4s, %[a0a].s[3]\n"
160 "ldr x20, [%[a_ptr], #72]\n"
161 "fmla v12.4s, %[b0].4s, %[a1a].s[0]\n"
162 "fmla v13.4s, %[b0].4s, %[a1a].s[1]\n"
164 "ldr %d[a1], [%[a_ptr], #80]\n"
165 "ins %[a0].d[1], x20\n"
166 "fmla v14.4s, %[b0].4s, %[a1a].s[2]\n"
167 "ldr x20, [%[a_ptr], #88]\n"
168 "fmla v15.4s, %[b0].4s, %[a1a].s[3]\n"
169 "fmla v16.4s, %[b1].4s, %[a0a].s[0]\n"
171 "ldr %d[b0], [%[b_ptr], #96]\n"
172 "ins %[a1].d[1], x20\n"
173 "fmla v17.4s, %[b1].4s, %[a0a].s[1]\n"
174 "ldr x20, [%[b_ptr], #104]\n"
175 "fmla v18.4s, %[b1].4s, %[a0a].s[2]\n"
176 "fmla v19.4s, %[b1].4s, %[a0a].s[3]\n"
179 "ins %[b0].d[1], x20\n"
180 "fmla v20.4s, %[b1].4s, %[a1a].s[0]\n"
181 "fmla v21.4s, %[b1].4s, %[a1a].s[1]\n"
182 "fmla v22.4s, %[b1].4s, %[a1a].s[2]\n"
186 "fmla v23.4s, %[b1].4s, %[a1a].s[3]\n"
187 "fmla v24.4s, %[b2].4s, %[a0a].s[0]\n"
188 "fmla v25.4s, %[b2].4s, %[a0a].s[1]\n"
190 "ldr %d[b1], [%[b_ptr], #112]\n"
192 "fmla v26.4s, %[b2].4s, %[a0a].s[2]\n"
193 "ldr x20, [%[b_ptr], #120]\n"
194 "fmla v27.4s, %[b2].4s, %[a0a].s[3]\n"
195 "add %[a_ptr], %[a_ptr], #64\n"
196 "fmla v28.4s, %[b2].4s, %[a1a].s[0]\n"
197 "add %[b_ptr], %[b_ptr], #96\n"
200 "ins %[b1].d[1], x20\n"
201 "fmla v29.4s, %[b2].4s, %[a1a].s[1]\n"
202 "fmla v30.4s, %[b2].4s, %[a1a].s[2]\n"
203 "fmla v31.4s, %[b2].4s, %[a1a].s[3]\n"
207 // Branch here if K=1 or 2. Do the right thing for odd/even at the end.
209 "cbnz %w[oddk], 2f\n"
211 // Detached final iteration. (even K)
212 "ldr %d[b2], [%[b_ptr], #32]\n"
214 "fmla v8.4s , %[b0].4s, %[a0].s[0]\n"
215 "ldr x20, [%[b_ptr], #40]\n"
216 "fmla v9.4s , %[b0].4s, %[a0].s[1]\n"
217 "subs %w[k], %w[k], #1\n"
218 "fmla v10.4s, %[b0].4s, %[a0].s[2]\n"
220 "ldr %d[a0a], [%[a_ptr], #32]\n"
221 "ins %[b2].d[1], x20\n"
222 "fmla v11.4s, %[b0].4s, %[a0].s[3]\n"
223 "ldr x20, [%[a_ptr], #40]\n"
224 "fmla v12.4s, %[b0].4s, %[a1].s[0]\n"
225 "fmla v13.4s, %[b0].4s, %[a1].s[1]\n"
227 "ldr %d[a1a], [%[a_ptr], #48]\n"
228 "ins %[a0a].d[1], x20\n"
229 "fmla v14.4s, %[b0].4s, %[a1].s[2]\n"
230 "ldr x20, [%[a_ptr], #56]\n"
231 "fmla v15.4s, %[b0].4s, %[a1].s[3]\n"
232 "fmla v16.4s, %[b1].4s, %[a0].s[0]\n"
234 "ldr %d[b0], [%[b_ptr], #48]\n"
235 "ins %[a1a].d[1], x20\n"
236 "fmla v17.4s, %[b1].4s, %[a0].s[1]\n"
237 "ldr x20, [%[b_ptr], #56]\n"
238 "fmla v18.4s, %[b1].4s, %[a0].s[2]\n"
239 "fmla v19.4s, %[b1].4s, %[a0].s[3]\n"
241 "ins %[b0].d[1], x20\n"
242 "fmla v20.4s, %[b1].4s, %[a1].s[0]\n"
243 "fmla v21.4s, %[b1].4s, %[a1].s[1]\n"
244 "fmla v22.4s, %[b1].4s, %[a1].s[2]\n"
247 "fmla v23.4s, %[b1].4s, %[a1].s[3]\n"
248 "fmla v24.4s, %[b2].4s, %[a0].s[0]\n"
249 "fmla v25.4s, %[b2].4s, %[a0].s[1]\n"
251 "ldr %d[b1], [%[b_ptr], #64]\n"
253 "fmla v26.4s, %[b2].4s, %[a0].s[2]\n"
254 "ldr x20, [%[b_ptr], #72]\n"
255 "fmla v27.4s, %[b2].4s, %[a0].s[3]\n"
256 "fmla v28.4s, %[b2].4s, %[a1].s[0]\n"
258 "ins %[b1].d[1], x20\n"
259 "fmla v29.4s, %[b2].4s, %[a1].s[1]\n"
260 "fmla v30.4s, %[b2].4s, %[a1].s[2]\n"
261 "fmla v31.4s, %[b2].4s, %[a1].s[3]\n"
263 "ldr %d[b2], [%[b_ptr], #80]\n"
265 "fmla v8.4s , %[b0].4s, %[a0a].s[0]\n"
266 "ldr x20, [%[b_ptr], #88]\n"
267 "fmla v9.4s , %[b0].4s, %[a0a].s[1]\n"
268 "fmla v10.4s, %[b0].4s, %[a0a].s[2]\n"
270 "ins %[b2].d[1], x20\n"
271 "fmla v11.4s, %[b0].4s, %[a0a].s[3]\n"
272 "fmla v12.4s, %[b0].4s, %[a1a].s[0]\n"
273 "fmla v13.4s, %[b0].4s, %[a1a].s[1]\n"
274 "fmla v14.4s, %[b0].4s, %[a1a].s[2]\n"
275 "fmla v15.4s, %[b0].4s, %[a1a].s[3]\n"
276 "fmla v16.4s, %[b1].4s, %[a0a].s[0]\n"
277 "fmla v17.4s, %[b1].4s, %[a0a].s[1]\n"
278 "fmla v18.4s, %[b1].4s, %[a0a].s[2]\n"
279 "fmla v19.4s, %[b1].4s, %[a0a].s[3]\n"
280 "fmla v20.4s, %[b1].4s, %[a1a].s[0]\n"
281 "fmla v21.4s, %[b1].4s, %[a1a].s[1]\n"
282 "fmla v22.4s, %[b1].4s, %[a1a].s[2]\n"
283 "fmla v23.4s, %[b1].4s, %[a1a].s[3]\n"
284 "fmla v24.4s, %[b2].4s, %[a0a].s[0]\n"
285 "fmla v25.4s, %[b2].4s, %[a0a].s[1]\n"
286 "fmla v26.4s, %[b2].4s, %[a0a].s[2]\n"
287 "fmla v27.4s, %[b2].4s, %[a0a].s[3]\n"
288 "fmla v28.4s, %[b2].4s, %[a1a].s[0]\n"
289 "fmla v29.4s, %[b2].4s, %[a1a].s[1]\n"
290 "add %[a_ptr], %[a_ptr], #64\n"
291 "fmla v30.4s, %[b2].4s, %[a1a].s[2]\n"
292 "add %[b_ptr], %[b_ptr], #96\n"
293 "fmla v31.4s, %[b2].4s, %[a1a].s[3]\n"
296 // Detached final iteration. (odd K)
298 "ldr %d[b2], [%[b_ptr], #32]\n"
300 "fmla v8.4s , %[b0].4s, %[a0].s[0]\n"
301 "ldr x20, [%[b_ptr], #40]\n"
302 "fmla v9.4s , %[b0].4s, %[a0].s[1]\n"
303 "fmla v10.4s, %[b0].4s, %[a0].s[2]\n"
305 "ins %[b2].d[1], x20\n"
306 "fmla v11.4s, %[b0].4s, %[a0].s[3]\n"
307 "fmla v12.4s, %[b0].4s, %[a1].s[0]\n"
308 "fmla v13.4s, %[b0].4s, %[a1].s[1]\n"
309 "fmla v14.4s, %[b0].4s, %[a1].s[2]\n"
310 "fmla v15.4s, %[b0].4s, %[a1].s[3]\n"
311 "fmla v16.4s, %[b1].4s, %[a0].s[0]\n"
312 "fmla v17.4s, %[b1].4s, %[a0].s[1]\n"
313 "fmla v18.4s, %[b1].4s, %[a0].s[2]\n"
314 "fmla v19.4s, %[b1].4s, %[a0].s[3]\n"
315 "fmla v20.4s, %[b1].4s, %[a1].s[0]\n"
316 "fmla v21.4s, %[b1].4s, %[a1].s[1]\n"
317 "fmla v22.4s, %[b1].4s, %[a1].s[2]\n"
318 "fmla v23.4s, %[b1].4s, %[a1].s[3]\n"
319 "fmla v24.4s, %[b2].4s, %[a0].s[0]\n"
320 "fmla v25.4s, %[b2].4s, %[a0].s[1]\n"
321 "fmla v26.4s, %[b2].4s, %[a0].s[2]\n"
322 "fmla v27.4s, %[b2].4s, %[a0].s[3]\n"
323 "fmla v28.4s, %[b2].4s, %[a1].s[0]\n"
324 "fmla v29.4s, %[b2].4s, %[a1].s[1]\n"
325 "add %[a_ptr], %[a_ptr], #32\n"
326 "fmla v30.4s, %[b2].4s, %[a1].s[2]\n"
327 "add %[b_ptr], %[b_ptr], #48\n"
328 "fmla v31.4s, %[b2].4s, %[a1].s[3]\n"
332 "str q8, [%[c_ptr]]\n"
333 "str q16, [%[c_ptr], #16]\n"
334 "str q24, [%[c_ptr], #32]\n"
335 "str q9, [%[c_ptr], #48]\n"
336 "str q17, [%[c_ptr], #64]\n"
337 "str q25, [%[c_ptr], #80]\n"
338 "str q10, [%[c_ptr], #96]\n"
339 "str q18, [%[c_ptr], #112]\n"
340 "str q26, [%[c_ptr], #128]\n"
341 "str q11, [%[c_ptr], #144]\n"
342 "str q19, [%[c_ptr], #160]\n"
343 "str q27, [%[c_ptr], #176]\n"
344 "str q12, [%[c_ptr], #192]\n"
345 "str q20, [%[c_ptr], #208]\n"
346 "str q28, [%[c_ptr], #224]\n"
347 "str q13, [%[c_ptr], #240]\n"
348 "str q21, [%[c_ptr], #256]\n"
349 "str q29, [%[c_ptr], #272]\n"
350 "str q14, [%[c_ptr], #288]\n"
351 "str q22, [%[c_ptr], #304]\n"
352 "str q30, [%[c_ptr], #320]\n"
353 "str q15, [%[c_ptr], #336]\n"
354 "str q23, [%[c_ptr], #352]\n"
355 "str q31, [%[c_ptr], #368]\n"
356 "add %[c_ptr], %[c_ptr], #384\n"
358 [a_ptr] "+r" (a_ptr), [b_ptr] "+r" (b_ptr), [c_ptr] "+r" (c_ptr),
359 [a0] "+w" (a0), [a1] "+w" (a1), [a0a] "+w" (a0a), [a1a] "+w" (a1a),
360 [b0] "+w" (b0), [b1] "+w" (b1), [b2] "+w" (b2), [k] "+r" (k)
362 : "x20", "x21", "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17", "v18",
363 "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", "cc"