1 /*
2  * Copyright (c) 2022 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 #if defined(__ARM_FEATURE_SVE)
26 
27 template <>
interleave_block(float * & out,const float * const * in,size_t width,size_t height,size_t row_offset,bool first)28 void interleave_block<1, 1, VLType::SME, false>(
29   float * &out, const float * const *in,
30   size_t width, size_t height, size_t row_offset, bool first
31 )
32 {
33   ARM_COMPUTE_UNUSED(first);
34 
35   __asm__ __volatile__(
36       ".inst 0xd503477f  // SMSTART ZA\n"
37       "cntw x10\n"
38       "mov x19, %x[width]\n"
39       "incw x19\n"
40       "sub x19, x19, #0x1\n"
41       "udiv x19, x19, x10\n" // n_passes = ceildiv(width, VL<T>)
42       "sub x9, x19, #0x1\n"
43       "lsr x9, x9, #0x1\n" // n_loops = (n_passes - 1) / 2
44       "and x28, x19, #0x1\n" // odd_tail = bool(n_passes & 0x1)
45       "mov x19, %x[width]\n"
46       "sub x27, x10, #0x1\n"
47       "ands x27, x19, x27\n"
48       "csel x27, x27, x10, NE\n"
49       "sub x26, x10, #0x2\n"
50       "ptrue p11.s\n"
51       "whilelt p10.s, XZR, %x[height]\n"
52       "mov x25, %x[row_offset]\n"
53       "mov x24, %x[out]\n"
54       "mov x23, #0x0\n"
55       "whilelt p9.s, x23, %x[width]\n"
56       "whilelt p8.s, x23, %x[width]\n"
57       "mov x22, %x[in]\n"
58       "ldr x21, [x22, #0x0]\n"
59       "ldr x20, [x22, #0x8]\n"
60       "add x22, x22, #0x10\n"
61       "mov x12, #0x0\n"
62       "cbz x26, 2f\n"
63       "1:"  // K loop: Charge: Loop
64       ".inst 0x25306140  // dup p0.s, p8.s/Z, p10.s[w12]\n"
65       ".inst 0xe09902a0  // ld1w { za0h.s[x12] }, p0/Z, [x21, x25, LSL #2]\n"
66       ".inst 0x25706140  // dup p0.s, p8.s/Z, p10.s[w12, #1]\n"
67       "ldr x21, [x22, #0x0]\n"
68       ".inst 0xe0990281  // ld1w { za0h.s[x12, #1] }, p0/Z, [x20, x25, LSL #2]\n"
69       "ldr x20, [x22, #0x8]\n"
70       "add x22, x22, #0x10\n"
71       "add x12, x12, #0x2\n"
72       "cmp x12, x26\n"
73       "blt 1b\n"
74       "2:"  // K loop: Charge: End
75       ".inst 0x25306140  // dup p0.s, p8.s/Z, p10.s[w12]\n"
76       ".inst 0xe09902a0  // ld1w { za0h.s[x12] }, p0/Z, [x21, x25, LSL #2]\n"
77       ".inst 0x25706140  // dup p0.s, p8.s/Z, p10.s[w12, #1]\n"
78       "mov x22, %x[in]\n"
79       ".inst 0xe0990281  // ld1w { za0h.s[x12, #1] }, p0/Z, [x20, x25, LSL #2]\n"
80       "ldr x21, [x22, #0x0]\n"
81       "ldr x20, [x22, #0x8]\n"
82       "add x22, x22, #0x10\n"
83       "incw x25\n"
84       "incw x23\n"
85       "cbz x9, 8f\n"
86       "mov x19, x9\n"
87       "3:"  // K loop: Main loop
88       "whilelt p8.s, x23, %x[width]\n"
89       "mov x12, #0x0\n"
90       "cbz x26, 5f\n"
91       "4:"  // K loop: Main loop: First: Loop
92       ".inst 0x25306140  // dup p0.s, p8.s/Z, p10.s[w12]\n"
93       ".inst 0xe09902a8  // ld1w { za2h.s[x12] }, p0/Z, [x21, x25, LSL #2]\n"
94       ".inst 0x25706140  // dup p0.s, p8.s/Z, p10.s[w12, #1]\n"
95       "ldr x21, [x22, #0x0]\n"
96       ".inst 0xe0990289  // ld1w { za2h.s[x12, #1] }, p0/Z, [x20, x25, LSL #2]\n"
97       "ldr x20, [x22, #0x8]\n"
98       "add x22, x22, #0x10\n"
99       ".inst 0x25306d20  // dup p0.s, p11.s/Z, p9.s[w12]\n"
100       ".inst 0xe0bf8300  // st1w { za0v.s[x12] }, p0/Z, [x24, XZR, LSL #2]\n"
101       ".inst 0x25706d20  // dup p0.s, p11.s/Z, p9.s[w12, #1]\n"
102       ".inst 0xe0aa8301  // st1w { za0v.s[x12, #1] }, p0/Z, [x24, x10, LSL #2]\n"
103       "addvl x24, x24, #2\n"
104       "add x12, x12, #0x2\n"
105       "cmp x12, x26\n"
106       "blt 4b\n"
107       "5:"  // K loop: Main loop: First: Tail
108       "mov x22, %x[in]\n"
109       ".inst 0x25306140  // dup p0.s, p8.s/Z, p10.s[w12]\n"
110       ".inst 0xe09902a8  // ld1w { za2h.s[x12] }, p0/Z, [x21, x25, LSL #2]\n"
111       ".inst 0x25706140  // dup p0.s, p8.s/Z, p10.s[w12, #1]\n"
112       "ldr x21, [x22, #0x0]\n"
113       ".inst 0xe0990289  // ld1w { za2h.s[x12, #1] }, p0/Z, [x20, x25, LSL #2]\n"
114       "ldr x20, [x22, #0x8]\n"
115       "add x22, x22, #0x10\n"
116       ".inst 0x25306d20  // dup p0.s, p11.s/Z, p9.s[w12]\n"
117       ".inst 0xe0bf8300  // st1w { za0v.s[x12] }, p0/Z, [x24, XZR, LSL #2]\n"
118       ".inst 0x25706d20  // dup p0.s, p11.s/Z, p9.s[w12, #1]\n"
119       "whilelt p9.s, x23, %x[width]\n"
120       ".inst 0xe0aa8301  // st1w { za0v.s[x12, #1] }, p0/Z, [x24, x10, LSL #2]\n"
121       "addvl x24, x24, #2\n"
122       "incw x23\n"
123       "incw x25\n"
124       "whilelt p8.s, x23, %x[width]\n"
125       "mov x12, #0x0\n"
126       "cbz x26, 7f\n"
127       "6:"  // K loop: Main loop: Second: Loop
128       ".inst 0x25306140  // dup p0.s, p8.s/Z, p10.s[w12]\n"
129       ".inst 0xe09902a0  // ld1w { za0h.s[x12] }, p0/Z, [x21, x25, LSL #2]\n"
130       ".inst 0x25706140  // dup p0.s, p8.s/Z, p10.s[w12, #1]\n"
131       "ldr x21, [x22, #0x0]\n"
132       ".inst 0xe0990281  // ld1w { za0h.s[x12, #1] }, p0/Z, [x20, x25, LSL #2]\n"
133       "ldr x20, [x22, #0x8]\n"
134       "add x22, x22, #0x10\n"
135       ".inst 0x25306d20  // dup p0.s, p11.s/Z, p9.s[w12]\n"
136       ".inst 0xe0bf8308  // st1w { za2v.s[x12] }, p0/Z, [x24, XZR, LSL #2]\n"
137       ".inst 0x25706d20  // dup p0.s, p11.s/Z, p9.s[w12, #1]\n"
138       ".inst 0xe0aa8309  // st1w { za2v.s[x12, #1] }, p0/Z, [x24, x10, LSL #2]\n"
139       "addvl x24, x24, #2\n"
140       "add x12, x12, #0x2\n"
141       "cmp x12, x26\n"
142       "blt 6b\n"
143       "7:"  // K loop: Main loop: Second: Tail
144       "mov x22, %x[in]\n"
145       ".inst 0x25306140  // dup p0.s, p8.s/Z, p10.s[w12]\n"
146       ".inst 0xe09902a0  // ld1w { za0h.s[x12] }, p0/Z, [x21, x25, LSL #2]\n"
147       ".inst 0x25706140  // dup p0.s, p8.s/Z, p10.s[w12, #1]\n"
148       "ldr x21, [x22, #0x0]\n"
149       ".inst 0xe0990281  // ld1w { za0h.s[x12, #1] }, p0/Z, [x20, x25, LSL #2]\n"
150       "ldr x20, [x22, #0x8]\n"
151       "add x22, x22, #0x10\n"
152       ".inst 0x25306d20  // dup p0.s, p11.s/Z, p9.s[w12]\n"
153       ".inst 0xe0bf8308  // st1w { za2v.s[x12] }, p0/Z, [x24, XZR, LSL #2]\n"
154       ".inst 0x25706d20  // dup p0.s, p11.s/Z, p9.s[w12, #1]\n"
155       "whilelt p9.s, x23, %x[width]\n"
156       ".inst 0xe0aa8309  // st1w { za2v.s[x12, #1] }, p0/Z, [x24, x10, LSL #2]\n"
157       "addvl x24, x24, #2\n"
158       "incw x23\n"
159       "incw x25\n"
160       "subs x19, x19, #0x1\n"
161       "bgt 3b\n"
162       "8:"  // K loop: Tails
163       "cbnz x28, 11f\n"
164       "mov x22, %x[in]\n"
165       "whilelt p8.s, x23, %x[width]\n"
166       "mov x12, #0x0\n"
167       "9:"  // K loop: Tails: Even: First
168       ".inst 0x25306d20  // dup p0.s, p11.s/Z, p9.s[w12]\n"
169       ".inst 0xe0bf8300  // st1w { za0v.s[x12] }, p0/Z, [x24, XZR, LSL #2]\n"
170       ".inst 0x25306140  // dup p0.s, p8.s/Z, p10.s[w12]\n"
171       "addvl x24, x24, #1\n"
172       "ldr x21, [x22, #0x0]\n"
173       ".inst 0xe09902a8  // ld1w { za2h.s[x12] }, p0/Z, [x21, x25, LSL #2]\n"
174       "add x22, x22, #0x8\n"
175       "add x12, x12, #0x1\n"
176       "cmp x12, x10\n"
177       "blt 9b\n"
178       "whilelt p9.s, x23, %x[width]\n"
179       "whilelt p8.s, x23, %x[width]\n"
180       "mov x12, #0x0\n"
181       "10:"  // K loop: Tails: Even: Second
182       ".inst 0x25306d20  // dup p0.s, p11.s/Z, p9.s[w12]\n"
183       ".inst 0xe0bf8308  // st1w { za2v.s[x12] }, p0/Z, [x24, XZR, LSL #2]\n"
184       "addvl x24, x24, #1\n"
185       "add x12, x12, #0x1\n"
186       "cmp x12, x27\n"
187       "blt 10b\n"
188       "whilelt p9.s, x23, %x[width]\n"
189       "b 13f\n"
190       "11:"  // K loop: Tails: Odd
191       "mov x12, #0x0\n"
192       "12:"  // K loop: Tails: Odd: Loop
193       ".inst 0x25306d20  // dup p0.s, p11.s/Z, p9.s[w12]\n"
194       ".inst 0xe0bf8300  // st1w { za0v.s[x12] }, p0/Z, [x24, XZR, LSL #2]\n"
195       "addvl x24, x24, #1\n"
196       "add x12, x12, #0x1\n"
197       "cmp x12, x27\n"
198       "blt 12b\n"
199       "13:"  // K loop: End
200       "mov %x[out], x24\n"
201       ".inst 0xd503467f  // SMSTOP\n"
202       : [out] "+&r" (out)
203       : [height] "r" (height), [in] "r" (in), [row_offset] "r" (row_offset), [width] "r" (width)
204       : "cc", "memory", "p0", "p8", "p9", "p10", "p11", "x9", "x10", "x12", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27", "x28", "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7", "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15", "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23", "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31"
205     );
206 }
207 
208 #endif  // defined(__ARM_FEATURE_SVE)
209