1 /*
2  * Copyright (c) 2021 Arm Limited.
3  *
4  * SPDX-License-Identifier: MIT
5  *
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:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
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
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22  * IN THE SOFTWARE.
23  */
24 
25 #pragma once
26 
27 #ifdef __aarch64__
28 
29 namespace {
30 
a64_transpose_interleave_12_2x4(uint16_t * out,const uint16_t * in,size_t width,size_t in_stride,size_t height)31 void a64_transpose_interleave_12_2x4(uint16_t *out, const uint16_t *in, size_t width, size_t in_stride, size_t height)
32 {
33     uint16_t *pad_row = reinterpret_cast<uint16_t *>(alloca(width * sizeof(uint16_t)));
34 
35     if (height % 4) {
36         memset(pad_row, 0, width * sizeof(uint16_t));
37     }
38 
39     size_t out_stride = 12 * roundup<size_t>(height, 4) * sizeof(uint16_t);
40 
41     __asm__ __volatile__(
42       "cmp %x[height], #0x8\n"
43       "blt 10f\n"
44       "1:"  // Main row loop: Head
45       "mov x28, %x[in]\n"
46       "mov x27, %x[out]\n"
47       "add x26, x28, %x[in_stride]\n"
48       "add x25, x26, %x[in_stride]\n"
49       "add x24, x25, %x[in_stride]\n"
50       "add x23, x24, %x[in_stride]\n"
51       "add x22, x23, %x[in_stride]\n"
52       "add x21, x22, %x[in_stride]\n"
53       "add x20, x21, %x[in_stride]\n"
54       "add %x[in], x20, %x[in_stride]\n"
55       "sub %x[height], %x[height], #0x8\n"
56       "mov x19, %x[width]\n"
57       "cmp x19, #0x18\n"
58       "blt 3f\n"
59       "2:"  // Main row loop: Unroll column loop
60       "ldr q18, [x28], #0x10\n"
61       "sub x19, x19, #0x18\n"
62       "ldr q23, [x26], #0x10\n"
63       "cmp x19, #0x18\n"
64       "ldr q16, [x25], #0x10\n"
65       "zip1 v22.8h, v18.8h, v16.8h\n"
66       "ldr q17, [x28], #0x10\n"
67       "zip2 v21.8h, v18.8h, v16.8h\n"
68       "ldr q12, [x26], #0x10\n"
69       "ldr q16, [x25], #0x10\n"
70       "zip1 v20.8h, v17.8h, v16.8h\n"
71       "ldr q18, [x28], #0x10\n"
72       "zip2 v11.8h, v17.8h, v16.8h\n"
73       "ldr q10, [x26], #0x10\n"
74       "ldr q17, [x25], #0x10\n"
75       "zip1 v9.8h, v18.8h, v17.8h\n"
76       "ldr q16, [x24], #0x10\n"
77       "zip2 v8.8h, v18.8h, v17.8h\n"
78       "ldr q19, [x23], #0x10\n"
79       "ldr q7, [x22], #0x10\n"
80       "zip1 v17.8h, v23.8h, v16.8h\n"
81       "ldr q6, [x24], #0x10\n"
82       "zip2 v16.8h, v23.8h, v16.8h\n"
83       "ldr q5, [x23], #0x10\n"
84       "zip1 v4.8h, v22.8h, v17.8h\n"
85       "ldr q3, [x22], #0x10\n"
86       "zip2 v2.8h, v22.8h, v17.8h\n"
87       "ldr q18, [x21], #0x10\n"
88       "zip1 v1.8h, v21.8h, v16.8h\n"
89       "ldr q0, [x24], #0x10\n"
90       "zip2 v31.8h, v21.8h, v16.8h\n"
91       "ldr q30, [x23], #0x10\n"
92       "zip1 v16.8h, v12.8h, v6.8h\n"
93       "ldr q29, [x22], #0x10\n"
94       "zip1 v28.8h, v20.8h, v16.8h\n"
95       "ldr q27, [x21], #0x10\n"
96       "zip2 v26.8h, v20.8h, v16.8h\n"
97       "ldr q21, [x20], #0x10\n"
98       "zip1 v17.8h, v19.8h, v18.8h\n"
99       "ldr q25, [x21], #0x10\n"
100       "zip2 v19.8h, v19.8h, v18.8h\n"
101       "zip1 v18.8h, v5.8h, v27.8h\n"
102       "ldr q24, [x20], #0x10\n"
103       "zip1 v16.8h, v7.8h, v21.8h\n"
104       "ldr q23, [x20], #0x10\n"
105       "zip1 v22.8h, v17.8h, v16.8h\n"
106       "zip2 v20.8h, v17.8h, v16.8h\n"
107       "str q4, [x27, #0x0]\n"
108       "zip2 v16.8h, v7.8h, v21.8h\n"
109       "str q2, [x27, #0x10]\n"
110       "zip1 v17.8h, v19.8h, v16.8h\n"
111       "str q1, [x27, #0x20]\n"
112       "zip2 v21.8h, v19.8h, v16.8h\n"
113       "str q31, [x27, #0x30]\n"
114       "zip1 v16.8h, v3.8h, v24.8h\n"
115       "str q28, [x27, #0x40]\n"
116       "zip1 v19.8h, v18.8h, v16.8h\n"
117       "str q26, [x27, #0x50]\n"
118       "zip2 v18.8h, v18.8h, v16.8h\n"
119       "str q22, [x27, #0x60]\n"
120       "zip2 v16.8h, v12.8h, v6.8h\n"
121       "str q20, [x27, #0x70]\n"
122       "zip1 v20.8h, v11.8h, v16.8h\n"
123       "str q17, [x27, #0x80]\n"
124       "zip2 v17.8h, v11.8h, v16.8h\n"
125       "str q21, [x27, #0x90]\n"
126       "zip1 v16.8h, v10.8h, v0.8h\n"
127       "str q19, [x27, #0xa0]\n"
128       "zip1 v19.8h, v9.8h, v16.8h\n"
129       "str q18, [x27, #0xb0]\n"
130       "add x27, x27, %x[out_stride]\n"
131       "zip2 v18.8h, v9.8h, v16.8h\n"
132       "str q20, [x27, #0x0]\n"
133       "zip2 v16.8h, v10.8h, v0.8h\n"
134       "str q17, [x27, #0x10]\n"
135       "zip1 v17.8h, v8.8h, v16.8h\n"
136       "str q19, [x27, #0x20]\n"
137       "zip2 v16.8h, v8.8h, v16.8h\n"
138       "str q18, [x27, #0x30]\n"
139       "zip2 v18.8h, v5.8h, v27.8h\n"
140       "str q17, [x27, #0x40]\n"
141       "zip2 v17.8h, v3.8h, v24.8h\n"
142       "str q16, [x27, #0x50]\n"
143       "zip1 v16.8h, v18.8h, v17.8h\n"
144       "str q16, [x27, #0x60]\n"
145       "zip2 v16.8h, v18.8h, v17.8h\n"
146       "str q16, [x27, #0x70]\n"
147       "zip1 v18.8h, v30.8h, v25.8h\n"
148       "zip1 v17.8h, v29.8h, v23.8h\n"
149       "zip1 v16.8h, v18.8h, v17.8h\n"
150       "str q16, [x27, #0x80]\n"
151       "zip2 v16.8h, v18.8h, v17.8h\n"
152       "str q16, [x27, #0x90]\n"
153       "zip2 v18.8h, v30.8h, v25.8h\n"
154       "zip2 v17.8h, v29.8h, v23.8h\n"
155       "zip1 v16.8h, v18.8h, v17.8h\n"
156       "str q16, [x27, #0xa0]\n"
157       "zip2 v16.8h, v18.8h, v17.8h\n"
158       "str q16, [x27, #0xb0]\n"
159       "add x27, x27, %x[out_stride]\n"
160       "bge 2b\n"
161       "3:"  // Main row loop: Unroll column loop skip
162       "cmp x19, #0xc\n"
163       "blt 5f\n"
164       "4:"  // Main row loop: Column loop
165       "ldr q18, [x28], #0x10\n"
166       "sub x19, x19, #0xc\n"
167       "ldr q20, [x26], #0x10\n"
168       "cmp x19, #0xc\n"
169       "ldr q16, [x25], #0x10\n"
170       "zip1 v19.8h, v18.8h, v16.8h\n"
171       "ldr d17, [x28], #0x8\n"
172       "zip2 v23.8h, v18.8h, v16.8h\n"
173       "ldr d22, [x26], #0x8\n"
174       "ldr d16, [x25], #0x8\n"
175       "zip1 v21.8h, v17.8h, v16.8h\n"
176       "ldr q16, [x24], #0x10\n"
177       "ldr q31, [x23], #0x10\n"
178       "zip1 v18.8h, v20.8h, v16.8h\n"
179       "ldr d17, [x24], #0x8\n"
180       "zip2 v16.8h, v20.8h, v16.8h\n"
181       "ldr d30, [x23], #0x8\n"
182       "zip1 v29.8h, v19.8h, v18.8h\n"
183       "ldr q28, [x22], #0x10\n"
184       "zip2 v20.8h, v19.8h, v18.8h\n"
185       "ldr q27, [x21], #0x10\n"
186       "zip1 v19.8h, v23.8h, v16.8h\n"
187       "ldr q26, [x20], #0x10\n"
188       "zip2 v18.8h, v23.8h, v16.8h\n"
189       "ldr d25, [x22], #0x8\n"
190       "zip1 v16.8h, v22.8h, v17.8h\n"
191       "zip1 v24.8h, v21.8h, v16.8h\n"
192       "ldr d23, [x21], #0x8\n"
193       "zip2 v22.8h, v21.8h, v16.8h\n"
194       "ldr d21, [x20], #0x8\n"
195       "zip1 v17.8h, v31.8h, v27.8h\n"
196       "str q29, [x27, #0x0]\n"
197       "zip1 v16.8h, v28.8h, v26.8h\n"
198       "str q20, [x27, #0x10]\n"
199       "zip1 v20.8h, v17.8h, v16.8h\n"
200       "str q19, [x27, #0x20]\n"
201       "zip2 v19.8h, v17.8h, v16.8h\n"
202       "str q18, [x27, #0x30]\n"
203       "zip2 v18.8h, v31.8h, v27.8h\n"
204       "str q24, [x27, #0x40]\n"
205       "zip2 v16.8h, v28.8h, v26.8h\n"
206       "str q22, [x27, #0x50]\n"
207       "zip1 v17.8h, v18.8h, v16.8h\n"
208       "str q20, [x27, #0x60]\n"
209       "zip2 v16.8h, v18.8h, v16.8h\n"
210       "str q19, [x27, #0x70]\n"
211       "zip1 v18.8h, v30.8h, v23.8h\n"
212       "str q17, [x27, #0x80]\n"
213       "zip1 v17.8h, v25.8h, v21.8h\n"
214       "str q16, [x27, #0x90]\n"
215       "zip1 v16.8h, v18.8h, v17.8h\n"
216       "str q16, [x27, #0xa0]\n"
217       "zip2 v16.8h, v18.8h, v17.8h\n"
218       "str q16, [x27, #0xb0]\n"
219       "add x27, x27, %x[out_stride]\n"
220       "bge 4b\n"
221       "5:"  // Main row loop: Column loop skip
222       "cmp x19, #0x4\n"
223       "blt 7f\n"
224       "6:"  // Main row loop: width 4 loop: loop
225       "ldr d17, [x28], #0x8\n"
226       "sub x19, x19, #0x4\n"
227       "ldr d18, [x26], #0x8\n"
228       "cmp x19, #0x4\n"
229       "ldr d16, [x25], #0x8\n"
230       "zip1 v17.8h, v17.8h, v16.8h\n"
231       "ldr d16, [x24], #0x8\n"
232       "ldr d21, [x23], #0x8\n"
233       "zip1 v16.8h, v18.8h, v16.8h\n"
234       "ldr d20, [x22], #0x8\n"
235       "ldr d19, [x21], #0x8\n"
236       "zip1 v18.8h, v17.8h, v16.8h\n"
237       "zip2 v17.8h, v17.8h, v16.8h\n"
238       "ldr d16, [x20], #0x8\n"
239       "str q18, [x27, #0x0]\n"
240       "zip1 v18.8h, v21.8h, v19.8h\n"
241       "str q17, [x27, #0x10]\n"
242       "zip1 v17.8h, v20.8h, v16.8h\n"
243       "zip1 v16.8h, v18.8h, v17.8h\n"
244       "str q16, [x27, #0x60]\n"
245       "zip2 v16.8h, v18.8h, v17.8h\n"
246       "str q16, [x27, #0x70]\n"
247       "add x27, x27, #0x20\n"
248       "bge 6b\n"
249       "7:"  // Main row loop: width 4 loop: skip
250       "cmp x19, #0x1\n"
251       "blt 9f\n"
252       "8:"  // Main row loop: width 1 loop: loop
253       "ldr h18, [x28], #0x2\n"
254       "sub x19, x19, #0x1\n"
255       "ldr h17, [x26], #0x2\n"
256       "cmp x19, #0x1\n"
257       "ldr h16, [x25], #0x2\n"
258       "zip1 v18.8h, v18.8h, v16.8h\n"
259       "ldr h16, [x24], #0x2\n"
260       "ldr h20, [x23], #0x2\n"
261       "zip1 v16.8h, v17.8h, v16.8h\n"
262       "ldr h19, [x22], #0x2\n"
263       "ldr h17, [x21], #0x2\n"
264       "zip1 v18.8h, v18.8h, v16.8h\n"
265       "ldr h16, [x20], #0x2\n"
266       "zip1 v17.8h, v20.8h, v17.8h\n"
267       "str d18, [x27, #0x0]\n"
268       "zip1 v16.8h, v19.8h, v16.8h\n"
269       "zip1 v16.8h, v17.8h, v16.8h\n"
270       "str d16, [x27, #0x60]\n"
271       "add x27, x27, #0x8\n"
272       "bge 8b\n"
273       "9:"  // Main row loop: width 1 loop: skip
274       "add %x[out], %x[out], #0xc0\n"
275       "cmp %x[height], #0x8\n"
276       "bge 1b\n"
277       "cbz %x[height], 20f\n"
278       "10:"  // Main loop skip
279 
280       "11:"  // Tail row loop: Head
281       "mov x28, %x[in]\n"
282       "mov x27, %x[out]\n"
283       "add x26, x28, %x[in_stride]\n"
284       "add x25, x26, %x[in_stride]\n"
285       "add x24, x25, %x[in_stride]\n"
286       "add %x[in], x24, %x[in_stride]\n"
287       "cmp %x[height], #0x3\n"
288       "csel x24, x24, %x[pad_row], GT\n"
289       "csel x25, x25, %x[pad_row], GE\n"
290       "cmp %x[height], #0x1\n"
291       "csel x26, x26, %x[pad_row], GT\n"
292       "sub %x[height], %x[height], #0x4\n"
293       "mov x19, %x[width]\n"
294       "cmp x19, #0x18\n"
295       "blt 13f\n"
296       "12:"  // Tail row loop: Unroll column loop
297       "ldr q18, [x28], #0x10\n"
298       "sub x19, x19, #0x18\n"
299       "ldr q19, [x26], #0x10\n"
300       "cmp x19, #0x18\n"
301       "ldr q16, [x25], #0x10\n"
302       "zip1 v28.8h, v18.8h, v16.8h\n"
303       "ldr q17, [x28], #0x10\n"
304       "zip2 v27.8h, v18.8h, v16.8h\n"
305       "ldr q26, [x26], #0x10\n"
306       "ldr q16, [x25], #0x10\n"
307       "zip1 v25.8h, v17.8h, v16.8h\n"
308       "ldr q18, [x28], #0x10\n"
309       "zip2 v24.8h, v17.8h, v16.8h\n"
310       "ldr q23, [x26], #0x10\n"
311       "ldr q16, [x25], #0x10\n"
312       "zip1 v22.8h, v18.8h, v16.8h\n"
313       "ldr q17, [x24], #0x10\n"
314       "zip2 v21.8h, v18.8h, v16.8h\n"
315       "ldr q20, [x24], #0x10\n"
316       "zip1 v16.8h, v19.8h, v17.8h\n"
317       "zip2 v18.8h, v19.8h, v17.8h\n"
318       "ldr q19, [x24], #0x10\n"
319       "zip1 v17.8h, v28.8h, v16.8h\n"
320       "zip2 v16.8h, v28.8h, v16.8h\n"
321       "str q17, [x27, #0x0]\n"
322       "zip1 v17.8h, v27.8h, v18.8h\n"
323       "str q16, [x27, #0x10]\n"
324       "zip2 v16.8h, v27.8h, v18.8h\n"
325       "str q17, [x27, #0x20]\n"
326       "zip1 v17.8h, v26.8h, v20.8h\n"
327       "str q16, [x27, #0x30]\n"
328       "zip1 v16.8h, v25.8h, v17.8h\n"
329       "str q16, [x27, #0x40]\n"
330       "zip2 v16.8h, v25.8h, v17.8h\n"
331       "str q16, [x27, #0x50]\n"
332       "add x27, x27, %x[out_stride]\n"
333       "zip2 v18.8h, v26.8h, v20.8h\n"
334       "zip1 v17.8h, v23.8h, v19.8h\n"
335       "zip1 v16.8h, v24.8h, v18.8h\n"
336       "str q16, [x27, #0x0]\n"
337       "zip2 v16.8h, v24.8h, v18.8h\n"
338       "str q16, [x27, #0x10]\n"
339       "zip1 v16.8h, v22.8h, v17.8h\n"
340       "str q16, [x27, #0x20]\n"
341       "zip2 v16.8h, v22.8h, v17.8h\n"
342       "str q16, [x27, #0x30]\n"
343       "zip2 v17.8h, v23.8h, v19.8h\n"
344       "zip1 v16.8h, v21.8h, v17.8h\n"
345       "str q16, [x27, #0x40]\n"
346       "zip2 v16.8h, v21.8h, v17.8h\n"
347       "str q16, [x27, #0x50]\n"
348       "add x27, x27, %x[out_stride]\n"
349       "bge 12b\n"
350       "13:"  // Tail row loop: Unroll column loop skip
351       "cmp x19, #0xc\n"
352       "blt 15f\n"
353       "14:"  // Tail row loop: Column loop
354       "ldr q18, [x28], #0x10\n"
355       "sub x19, x19, #0xc\n"
356       "ldr q24, [x26], #0x10\n"
357       "cmp x19, #0xc\n"
358       "ldr q16, [x25], #0x10\n"
359       "zip1 v23.8h, v18.8h, v16.8h\n"
360       "ldr d17, [x28], #0x8\n"
361       "zip2 v22.8h, v18.8h, v16.8h\n"
362       "ldr d21, [x26], #0x8\n"
363       "ldr d16, [x25], #0x8\n"
364       "zip1 v20.8h, v17.8h, v16.8h\n"
365       "ldr q16, [x24], #0x10\n"
366       "zip1 v19.8h, v24.8h, v16.8h\n"
367       "ldr d18, [x24], #0x8\n"
368       "zip2 v17.8h, v24.8h, v16.8h\n"
369       "zip1 v16.8h, v23.8h, v19.8h\n"
370       "str q16, [x27, #0x0]\n"
371       "zip2 v16.8h, v23.8h, v19.8h\n"
372       "str q16, [x27, #0x10]\n"
373       "zip1 v16.8h, v22.8h, v17.8h\n"
374       "str q16, [x27, #0x20]\n"
375       "zip2 v16.8h, v22.8h, v17.8h\n"
376       "str q16, [x27, #0x30]\n"
377       "zip1 v17.8h, v21.8h, v18.8h\n"
378       "zip1 v16.8h, v20.8h, v17.8h\n"
379       "str q16, [x27, #0x40]\n"
380       "zip2 v16.8h, v20.8h, v17.8h\n"
381       "str q16, [x27, #0x50]\n"
382       "add x27, x27, %x[out_stride]\n"
383       "bge 14b\n"
384       "15:"  // Tail row loop: Column loop skip
385       "cmp x19, #0x4\n"
386       "blt 17f\n"
387       "16:"  // Tail row loop: width 4 loop: loop
388       "ldr d18, [x28], #0x8\n"
389       "sub x19, x19, #0x4\n"
390       "ldr d17, [x26], #0x8\n"
391       "cmp x19, #0x4\n"
392       "ldr d16, [x25], #0x8\n"
393       "zip1 v18.8h, v18.8h, v16.8h\n"
394       "ldr d16, [x24], #0x8\n"
395       "zip1 v17.8h, v17.8h, v16.8h\n"
396       "zip1 v16.8h, v18.8h, v17.8h\n"
397       "str q16, [x27, #0x0]\n"
398       "zip2 v16.8h, v18.8h, v17.8h\n"
399       "str q16, [x27, #0x10]\n"
400       "add x27, x27, #0x20\n"
401       "bge 16b\n"
402       "17:"  // Tail row loop: width 4 loop: skip
403       "cmp x19, #0x1\n"
404       "blt 19f\n"
405       "18:"  // Tail row loop: width 1 loop: loop
406       "ldr h17, [x28], #0x2\n"
407       "sub x19, x19, #0x1\n"
408       "ldr h18, [x26], #0x2\n"
409       "cmp x19, #0x1\n"
410       "ldr h16, [x25], #0x2\n"
411       "zip1 v17.8h, v17.8h, v16.8h\n"
412       "ldr h16, [x24], #0x2\n"
413       "zip1 v16.8h, v18.8h, v16.8h\n"
414       "zip1 v16.8h, v17.8h, v16.8h\n"
415       "str d16, [x27, #0x0]\n"
416       "add x27, x27, #0x8\n"
417       "bge 18b\n"
418       "19:"  // Tail row loop: width 1 loop: skip
419       "add %x[out], %x[out], #0x60\n"
420       "cmp %x[height], #0x1\n"
421       "bge 11b\n"
422       "20:"  // Done
423 
424       : [height] "+&r" (height), [in] "+&r" (in), [out] "+&r" (out)
425       : [in_stride] "r" (in_stride), [out_stride] "r" (out_stride), [pad_row] "r" (pad_row), [width] "r" (width)
426       : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9", "v10", "v11", "v12", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27", "x28"
427     );
428 }
429 
430 } // anonymous namespace
431 
432 template<>
Transform(bfloat16 * out,const bfloat16 * in,int stride,int x0,int xmax,int k0,int kmax)433 void Transform<12, 4, true, VLType::None>(
434     bfloat16 *out, const bfloat16 *in, int stride, int x0, int xmax, int k0, int kmax)
435 {
436     a64_transpose_interleave_12_2x4(
437         reinterpret_cast<uint16_t *>(out),
438         reinterpret_cast<const uint16_t *>(in + k0 * stride + x0),
439         (xmax-x0) * sizeof(bfloat16) / 2,
440         stride * sizeof(bfloat16),
441         (kmax-k0)
442     );
443 }
444 
445 #endif
446