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_96(uint32_t * out,const uint32_t * in,size_t width,size_t in_stride,size_t height)31 void a64_transpose_interleave_96(uint32_t *out, const uint32_t *in, size_t width, size_t in_stride, size_t height)
32 {
33     size_t out_stride = 24 * height * sizeof(uint32_t);
34 
35     __asm__ __volatile__(
36       "cmp %x[height], #0x4\n"
37       "blt 10f\n"
38       "1:"  // Main row loop: Head
39       "mov x24, %x[in]\n"
40       "mov x23, %x[out]\n"
41       "add x22, x24, %x[in_stride]\n"
42       "add x21, x22, %x[in_stride]\n"
43       "add x20, x21, %x[in_stride]\n"
44       "add %x[in], x20, %x[in_stride]\n"
45       "sub %x[height], %x[height], #0x4\n"
46       "mov x19, %x[width]\n"
47       "cmp x19, #0x18\n"
48       "blt 3f\n"
49       "2:"  // Main row loop: Column loop
50       "ldr q7, [x24], #0x10\n"
51       "sub x19, x19, #0x18\n"
52       "ldr q6, [x22], #0x10\n"
53       "cmp x19, #0x18\n"
54       "ldr q5, [x21], #0x10\n"
55       "ldr q4, [x20], #0x10\n"
56       "ldr q3, [x24], #0x10\n"
57       "ldr q2, [x22], #0x10\n"
58       "ldr q1, [x21], #0x10\n"
59       "ldr q0, [x20], #0x10\n"
60       "ldr q31, [x24], #0x10\n"
61       "ldr q30, [x22], #0x10\n"
62       "ldr q29, [x21], #0x10\n"
63       "ldr q28, [x20], #0x10\n"
64       "ldr q27, [x24], #0x10\n"
65       "ldr q26, [x22], #0x10\n"
66       "ldr q25, [x21], #0x10\n"
67       "ldr q24, [x20], #0x10\n"
68       "ldr q23, [x24], #0x10\n"
69       "ldr q22, [x22], #0x10\n"
70       "ldr q21, [x21], #0x10\n"
71       "ldr q20, [x20], #0x10\n"
72       "ldr q19, [x24], #0x10\n"
73       "ldr q18, [x22], #0x10\n"
74       "ldr q17, [x21], #0x10\n"
75       "ldr q16, [x20], #0x10\n"
76       "str q7, [x23, #0x0]\n"
77       "str q3, [x23, #0x10]\n"
78       "str q31, [x23, #0x20]\n"
79       "str q27, [x23, #0x30]\n"
80       "str q23, [x23, #0x40]\n"
81       "str q19, [x23, #0x50]\n"
82       "str q6, [x23, #0x60]\n"
83       "str q2, [x23, #0x70]\n"
84       "str q30, [x23, #0x80]\n"
85       "str q26, [x23, #0x90]\n"
86       "str q22, [x23, #0xa0]\n"
87       "str q18, [x23, #0xb0]\n"
88       "str q5, [x23, #0xc0]\n"
89       "str q1, [x23, #0xd0]\n"
90       "str q29, [x23, #0xe0]\n"
91       "str q25, [x23, #0xf0]\n"
92       "str q21, [x23, #0x100]\n"
93       "str q17, [x23, #0x110]\n"
94       "str q4, [x23, #0x120]\n"
95       "str q0, [x23, #0x130]\n"
96       "str q28, [x23, #0x140]\n"
97       "str q24, [x23, #0x150]\n"
98       "str q20, [x23, #0x160]\n"
99       "str q16, [x23, #0x170]\n"
100       "add x23, x23, %x[out_stride]\n"
101       "bge 2b\n"
102       "3:"  // Main row loop: Column loop skip
103       "cmp x19, #0x10\n"
104       "blt 5f\n"
105       "4:"  // Main row loop: width 16 loop: loop
106       "ldr q31, [x24], #0x10\n"
107       "sub x19, x19, #0x10\n"
108       "ldr q30, [x22], #0x10\n"
109       "cmp x19, #0x10\n"
110       "ldr q29, [x21], #0x10\n"
111       "ldr q28, [x20], #0x10\n"
112       "ldr q27, [x24], #0x10\n"
113       "ldr q26, [x22], #0x10\n"
114       "ldr q25, [x21], #0x10\n"
115       "ldr q24, [x20], #0x10\n"
116       "ldr q23, [x24], #0x10\n"
117       "ldr q22, [x22], #0x10\n"
118       "ldr q21, [x21], #0x10\n"
119       "ldr q20, [x20], #0x10\n"
120       "ldr q19, [x24], #0x10\n"
121       "ldr q18, [x22], #0x10\n"
122       "ldr q17, [x21], #0x10\n"
123       "ldr q16, [x20], #0x10\n"
124       "str q31, [x23, #0x0]\n"
125       "str q27, [x23, #0x10]\n"
126       "str q23, [x23, #0x20]\n"
127       "str q19, [x23, #0x30]\n"
128       "str q30, [x23, #0x60]\n"
129       "str q26, [x23, #0x70]\n"
130       "str q22, [x23, #0x80]\n"
131       "str q18, [x23, #0x90]\n"
132       "str q29, [x23, #0xc0]\n"
133       "str q25, [x23, #0xd0]\n"
134       "str q21, [x23, #0xe0]\n"
135       "str q17, [x23, #0xf0]\n"
136       "str q28, [x23, #0x120]\n"
137       "str q24, [x23, #0x130]\n"
138       "str q20, [x23, #0x140]\n"
139       "str q16, [x23, #0x150]\n"
140       "add x23, x23, #0x40\n"
141       "bge 4b\n"
142       "5:"  // Main row loop: width 16 loop: skip
143       "cmp x19, #0x4\n"
144       "blt 7f\n"
145       "6:"  // Main row loop: width 4 loop: loop
146       "ldr q19, [x24], #0x10\n"
147       "sub x19, x19, #0x4\n"
148       "ldr q18, [x22], #0x10\n"
149       "cmp x19, #0x4\n"
150       "ldr q17, [x21], #0x10\n"
151       "ldr q16, [x20], #0x10\n"
152       "str q19, [x23, #0x0]\n"
153       "str q18, [x23, #0x60]\n"
154       "str q17, [x23, #0xc0]\n"
155       "str q16, [x23, #0x120]\n"
156       "add x23, x23, #0x10\n"
157       "bge 6b\n"
158       "7:"  // Main row loop: width 4 loop: skip
159       "cmp x19, #0x1\n"
160       "blt 9f\n"
161       "8:"  // Main row loop: width 1 loop: loop
162       "ldr s19, [x24], #0x4\n"
163       "sub x19, x19, #0x1\n"
164       "ldr s18, [x22], #0x4\n"
165       "cmp x19, #0x1\n"
166       "ldr s17, [x21], #0x4\n"
167       "ldr s16, [x20], #0x4\n"
168       "str s19, [x23, #0x0]\n"
169       "str s18, [x23, #0x60]\n"
170       "str s17, [x23, #0xc0]\n"
171       "str s16, [x23, #0x120]\n"
172       "add x23, x23, #0x4\n"
173       "bge 8b\n"
174       "9:"  // Main row loop: width 1 loop: skip
175       "add %x[out], %x[out], #0x180\n"
176       "cmp %x[height], #0x4\n"
177       "bge 1b\n"
178       "cbz %x[height], 20f\n"
179       "10:"  // Main loop skip
180 
181       "11:"  // Tail row loop: Head
182       "mov x24, %x[in]\n"
183       "mov x23, %x[out]\n"
184       "add %x[in], x24, %x[in_stride]\n"
185       "sub %x[height], %x[height], #0x1\n"
186       "mov x19, %x[width]\n"
187       "cmp x19, #0x18\n"
188       "blt 13f\n"
189       "12:"  // Tail row loop: Column loop
190       "ldr q21, [x24], #0x10\n"
191       "sub x19, x19, #0x18\n"
192       "cmp x19, #0x18\n"
193       "ldr q20, [x24], #0x10\n"
194       "ldr q19, [x24], #0x10\n"
195       "ldr q18, [x24], #0x10\n"
196       "ldr q17, [x24], #0x10\n"
197       "ldr q16, [x24], #0x10\n"
198       "str q21, [x23, #0x0]\n"
199       "str q20, [x23, #0x10]\n"
200       "str q19, [x23, #0x20]\n"
201       "str q18, [x23, #0x30]\n"
202       "str q17, [x23, #0x40]\n"
203       "str q16, [x23, #0x50]\n"
204       "add x23, x23, %x[out_stride]\n"
205       "bge 12b\n"
206       "13:"  // Tail row loop: Column loop skip
207       "cmp x19, #0x10\n"
208       "blt 15f\n"
209       "14:"  // Tail row loop: width 16 loop: loop
210       "ldr q19, [x24], #0x10\n"
211       "sub x19, x19, #0x10\n"
212       "cmp x19, #0x10\n"
213       "ldr q18, [x24], #0x10\n"
214       "ldr q17, [x24], #0x10\n"
215       "ldr q16, [x24], #0x10\n"
216       "str q19, [x23, #0x0]\n"
217       "str q18, [x23, #0x10]\n"
218       "str q17, [x23, #0x20]\n"
219       "str q16, [x23, #0x30]\n"
220       "add x23, x23, #0x40\n"
221       "bge 14b\n"
222       "15:"  // Tail row loop: width 16 loop: skip
223       "cmp x19, #0x4\n"
224       "blt 17f\n"
225       "16:"  // Tail row loop: width 4 loop: loop
226       "ldr q16, [x24], #0x10\n"
227       "sub x19, x19, #0x4\n"
228       "cmp x19, #0x4\n"
229       "str q16, [x23, #0x0]\n"
230       "add x23, x23, #0x10\n"
231       "bge 16b\n"
232       "17:"  // Tail row loop: width 4 loop: skip
233       "cmp x19, #0x1\n"
234       "blt 19f\n"
235       "18:"  // Tail row loop: width 1 loop: loop
236       "ldr s16, [x24], #0x4\n"
237       "sub x19, x19, #0x1\n"
238       "cmp x19, #0x1\n"
239       "str s16, [x23, #0x0]\n"
240       "add x23, x23, #0x4\n"
241       "bge 18b\n"
242       "19:"  // Tail row loop: width 1 loop: skip
243       "add %x[out], %x[out], #0x60\n"
244       "cmp %x[height], #0x1\n"
245       "bge 11b\n"
246       "20:"  // Done
247 
248       : [height] "+&r" (height), [in] "+&r" (in), [out] "+&r" (out)
249       : [in_stride] "r" (in_stride), [out_stride] "r" (out_stride), [width] "r" (width)
250       : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", "x19", "x20", "x21", "x22", "x23", "x24"
251     );
252 }
253 
254 } // anonymous namespace
255 
256 template<>
Transform(float * out,const float * in,int stride,int x0,int xmax,int k0,int kmax)257 void Transform<24, 1, true, VLType::None>(
258     float *out, const float *in, int stride, int x0, int xmax, int k0, int kmax)
259 {
260     a64_transpose_interleave_96(
261         reinterpret_cast<uint32_t *>(out),
262         reinterpret_cast<const uint32_t *>(in + k0 * stride + x0),
263         (xmax-x0) * sizeof(float) / 4,
264         stride * sizeof(float),
265         (kmax-k0)
266     );
267 }
268 
269 #endif
270