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 #pragma once
26
27 #ifdef __ARM_FEATURE_SVE
28
29
30 namespace {
31
sme_transpose_interleave_1VL_1x4(uint8_t * out,const uint8_t * in,size_t width,size_t in_stride,size_t height)32 void sme_transpose_interleave_1VL_1x4(uint8_t *out, const uint8_t *in, size_t width, size_t in_stride, size_t height)
33 {
34 uint8_t *pad_row = reinterpret_cast<uint8_t *>(alloca(width * sizeof(uint8_t)));
35
36 if (height % 4) {
37 memset(pad_row, 0, width * sizeof(uint8_t));
38 }
39
40 size_t out_stride = 1 * roundup<size_t>(height, 4) * sme::get_vector_length<uint32_t>();
41
42 __asm__ __volatile__(
43 ".inst 0xd503477f // SMSTART ZA\n"
44 "ptrue p1.b\n"
45 "1:" // Main row loop: Head
46 "mov x25, %x[in]\n"
47 "add x24, x25, %x[in_stride]\n"
48 "add x23, x24, %x[in_stride]\n"
49 "add x22, x23, %x[in_stride]\n"
50 "cmp %x[height], #0x3\n"
51 "add %x[in], x22, %x[in_stride]\n"
52 "csel x22, x22, %x[pad_row], GT\n"
53 "csel x23, x23, %x[pad_row], GE\n"
54 "cmp %x[height], #0x1\n"
55 "mov x21, %x[width]\n"
56 "cntb x20\n"
57 "csel x24, x24, %x[pad_row], GT\n"
58 "cmp x21, x20\n"
59 "mov x19, %x[out]\n"
60 "sub %x[height], %x[height], #0x4\n"
61 "blt 3f\n"
62 "2:" // Main row loop: Unroll column loop
63 "ld1b { z17.b }, p1/Z, [x25]\n"
64 "sub x21, x21, x20\n"
65 "cmp x21, x20\n"
66 "ld1b { z18.b }, p1/Z, [x24]\n"
67 "addvl x25, x25, #1\n"
68 "addvl x24, x24, #1\n"
69 "ld1b { z16.b }, p1/Z, [x23]\n"
70 "zip1 z20.b, z17.b, z16.b\n"
71 "zip2 z19.b, z17.b, z16.b\n"
72 "addvl x23, x23, #1\n"
73 "ld1b { z16.b }, p1/Z, [x22]\n"
74 "zip1 z17.b, z18.b, z16.b\n"
75 "zip2 z18.b, z18.b, z16.b\n"
76 "addvl x22, x22, #1\n"
77 "zip1 z16.b, z20.b, z17.b\n"
78 "st1b { z16.b }, p1, [x19]\n"
79 "add x19, x19, %x[out_stride]\n"
80 "zip2 z16.b, z20.b, z17.b\n"
81 "st1b { z16.b }, p1, [x19]\n"
82 "add x19, x19, %x[out_stride]\n"
83 "zip1 z17.b, z19.b, z18.b\n"
84 "zip2 z16.b, z19.b, z18.b\n"
85 "st1b { z17.b }, p1, [x19]\n"
86 "add x19, x19, %x[out_stride]\n"
87 "st1b { z16.b }, p1, [x19]\n"
88 "add x19, x19, %x[out_stride]\n"
89 "bge 2b\n"
90 "3:" // Main row loop: Unroll column loop skip
91 "cbz x21, 5f\n"
92 "4:" // Main row loop: Column loop
93 "whilelt p0.b, XZR, x21\n"
94 "ld1b { z17.b }, p0/Z, [x25]\n"
95 "decw x21\n"
96 "ld1b { z18.b }, p0/Z, [x24]\n"
97 "cmp x21, #0x0\n"
98 "incd x25, ALL, MUL #2\n"
99 "ld1b { z16.b }, p0/Z, [x23]\n"
100 "zip1 z17.b, z17.b, z16.b\n"
101 "incd x24, ALL, MUL #2\n"
102 "incd x23, ALL, MUL #2\n"
103 "ld1b { z16.b }, p0/Z, [x22]\n"
104 "zip1 z16.b, z18.b, z16.b\n"
105 "incd x22, ALL, MUL #2\n"
106 "zip1 z16.b, z17.b, z16.b\n"
107 "st1b { z16.b }, p1, [x19]\n"
108 "add x19, x19, %x[out_stride]\n"
109 "bgt 4b\n"
110 "5:" // Main row loop: Column loop skip
111 "cmp %x[height], #0x1\n"
112 "addvl %x[out], %x[out], #1\n"
113 "bge 1b\n"
114 ".inst 0xd503467f // SMSTOP\n"
115 : [height] "+&r" (height), [in] "+&r" (in), [out] "+&r" (out)
116 : [in_stride] "r" (in_stride), [out_stride] "r" (out_stride), [pad_row] "r" (pad_row), [width] "r" (width)
117 : "cc", "memory", "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "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"
118 );
119 }
120
121 } // anonymous namespace
122
123 template<>
Transform(uint8_t * out,const uint8_t * in,int stride,int x0,int xmax,int k0,int kmax)124 void Transform<1, 4, true, VLType::SME>(
125 uint8_t *out, const uint8_t *in, int stride, int x0, int xmax, int k0, int kmax)
126 {
127 sme_transpose_interleave_1VL_1x4(
128 reinterpret_cast<uint8_t *>(out),
129 reinterpret_cast<const uint8_t *>(in + k0 * stride + x0),
130 (xmax-x0) * sizeof(uint8_t) / 1,
131 stride * sizeof(uint8_t),
132 (kmax-k0)
133 );
134 }
135
136 template<>
Transform(int8_t * out,const int8_t * in,int stride,int x0,int xmax,int k0,int kmax)137 void Transform<1, 4, true, VLType::SME>(
138 int8_t *out, const int8_t *in, int stride, int x0, int xmax, int k0, int kmax)
139 {
140 sme_transpose_interleave_1VL_1x4(
141 reinterpret_cast<uint8_t *>(out),
142 reinterpret_cast<const uint8_t *>(in + k0 * stride + x0),
143 (xmax-x0) * sizeof(int8_t) / 1,
144 stride * sizeof(int8_t),
145 (kmax-k0)
146 );
147 }
148
149 #endif
150