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_4VL_2x2_fp32bf16(bfloat16 * out,const float * in,size_t width,size_t in_stride,size_t height)32 void sme_transpose_interleave_4VL_2x2_fp32bf16(bfloat16 *out, const float *in, size_t width, size_t in_stride, size_t height)
33 {
34 float *pad_row = reinterpret_cast<float *>(alloca(width * sizeof(float)));
35
36 if (height % 2) {
37 memset(pad_row, 0, width * sizeof(float));
38 }
39
40 size_t out_stride = 4 * roundup<size_t>(height, 2) * sme::get_vector_length<uint16_t>();
41
42 __asm__ __volatile__(
43 ".inst 0xd503477f // SMSTART ZA\n"
44 "cmp %x[height], #0x4\n"
45 "ptrue p4.b\n"
46 "blt 4f\n"
47 "1:" // Main row loop: Head
48 "mov x25, %x[in]\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 %x[in], x22, %x[in_stride]\n"
53 "mov x21, %x[out]\n"
54 "sub %x[height], %x[height], #0x4\n"
55 "mov x20, %x[width]\n"
56 "2:" // Main row loop: Column loop
57 "mov x19, x20\n"
58 "whilelt p3.s, XZR, x19\n"
59 "ld1w { z16.s }, p3/Z, [x25]\n"
60 ".inst 0x658ab218 // bfcvt z24.h, p4/M, z16.s\n"
61 "decw x19\n"
62 "whilelt p2.s, XZR, x19\n"
63 "ld1w { z16.s }, p2/Z, [x25, #1, MUL VL]\n"
64 ".inst 0x658ab217 // bfcvt z23.h, p4/M, z16.s\n"
65 "decw x19\n"
66 "whilelt p1.s, XZR, x19\n"
67 "ld1w { z16.s }, p1/Z, [x25, #2, MUL VL]\n"
68 ".inst 0x658ab216 // bfcvt z22.h, p4/M, z16.s\n"
69 "decw x19\n"
70 "whilelt p0.s, XZR, x19\n"
71 "ld1w { z16.s }, p0/Z, [x25, #3, MUL VL]\n"
72 ".inst 0x658ab215 // bfcvt z21.h, p4/M, z16.s\n"
73 "ld1w { z16.s }, p3/Z, [x23]\n"
74 ".inst 0x658ab214 // bfcvt z20.h, p4/M, z16.s\n"
75 "decw x20, ALL, MUL #4\n"
76 "cmp x20, #0x0\n"
77 "ld1w { z16.s }, p2/Z, [x23, #1, MUL VL]\n"
78 ".inst 0x658ab213 // bfcvt z19.h, p4/M, z16.s\n"
79 "addvl x25, x25, #4\n"
80 "ld1w { z16.s }, p1/Z, [x23, #2, MUL VL]\n"
81 ".inst 0x658ab212 // bfcvt z18.h, p4/M, z16.s\n"
82 "ld1w { z16.s }, p0/Z, [x23, #3, MUL VL]\n"
83 ".inst 0x658ab211 // bfcvt z17.h, p4/M, z16.s\n"
84 "addvl x23, x23, #4\n"
85 "ld1w { z16.s }, p3/Z, [x24]\n"
86 ".inst 0x648ab218 // bfcvtnt z24.h, p4/M, z16.s\n"
87 "ld1w { z16.s }, p2/Z, [x24, #1, MUL VL]\n"
88 ".inst 0x648ab217 // bfcvtnt z23.h, p4/M, z16.s\n"
89 "ld1w { z16.s }, p1/Z, [x24, #2, MUL VL]\n"
90 ".inst 0x648ab216 // bfcvtnt z22.h, p4/M, z16.s\n"
91 "ld1w { z16.s }, p0/Z, [x24, #3, MUL VL]\n"
92 "addvl x24, x24, #4\n"
93 ".inst 0x648ab215 // bfcvtnt z21.h, p4/M, z16.s\n"
94 "ld1w { z16.s }, p3/Z, [x22]\n"
95 ".inst 0x648ab214 // bfcvtnt z20.h, p4/M, z16.s\n"
96 "ld1w { z16.s }, p2/Z, [x22, #1, MUL VL]\n"
97 ".inst 0x648ab213 // bfcvtnt z19.h, p4/M, z16.s\n"
98 "ld1w { z16.s }, p1/Z, [x22, #2, MUL VL]\n"
99 ".inst 0x648ab212 // bfcvtnt z18.h, p4/M, z16.s\n"
100 "ld1w { z16.s }, p0/Z, [x22, #3, MUL VL]\n"
101 "addvl x22, x22, #4\n"
102 ".inst 0x648ab211 // bfcvtnt z17.h, p4/M, z16.s\n"
103 "st1h { z24.h }, p4, [x21]\n"
104 "st1h { z23.h }, p4, [x21, #1, MUL VL]\n"
105 "st1h { z22.h }, p4, [x21, #2, MUL VL]\n"
106 "st1h { z21.h }, p4, [x21, #3, MUL VL]\n"
107 "st1h { z20.h }, p4, [x21, #4, MUL VL]\n"
108 "st1h { z19.h }, p4, [x21, #5, MUL VL]\n"
109 "st1h { z18.h }, p4, [x21, #6, MUL VL]\n"
110 "st1h { z17.h }, p4, [x21, #7, MUL VL]\n"
111 "add x21, x21, %x[out_stride]\n"
112 "bgt 2b\n"
113 "3:" // Main row loop: Column loop skip
114 "cmp %x[height], #0x4\n"
115 "addvl %x[out], %x[out], #8\n"
116 "bge 1b\n"
117 "cbz %x[height], 8f\n"
118 "4:" // Main loop skip
119 "5:" // Tail row loop: Head
120 "mov x25, %x[in]\n"
121 "add x24, x25, %x[in_stride]\n"
122 "cmp %x[height], #0x1\n"
123 "add %x[in], x24, %x[in_stride]\n"
124 "mov x21, %x[out]\n"
125 "csel x24, x24, %x[pad_row], GT\n"
126 "sub %x[height], %x[height], #0x2\n"
127 "mov x20, %x[width]\n"
128 "6:" // Tail row loop: Column loop
129 "mov x19, x20\n"
130 "whilelt p3.s, XZR, x19\n"
131 "ld1w { z16.s }, p3/Z, [x25]\n"
132 ".inst 0x658ab214 // bfcvt z20.h, p4/M, z16.s\n"
133 "decw x19\n"
134 "whilelt p2.s, XZR, x19\n"
135 "ld1w { z16.s }, p2/Z, [x25, #1, MUL VL]\n"
136 ".inst 0x658ab213 // bfcvt z19.h, p4/M, z16.s\n"
137 "decw x19\n"
138 "whilelt p1.s, XZR, x19\n"
139 "ld1w { z16.s }, p1/Z, [x25, #2, MUL VL]\n"
140 ".inst 0x658ab212 // bfcvt z18.h, p4/M, z16.s\n"
141 "decw x19\n"
142 "whilelt p0.s, XZR, x19\n"
143 "ld1w { z16.s }, p0/Z, [x25, #3, MUL VL]\n"
144 ".inst 0x658ab211 // bfcvt z17.h, p4/M, z16.s\n"
145 "ld1w { z16.s }, p3/Z, [x24]\n"
146 "decw x20, ALL, MUL #4\n"
147 "cmp x20, #0x0\n"
148 ".inst 0x648ab214 // bfcvtnt z20.h, p4/M, z16.s\n"
149 "ld1w { z16.s }, p2/Z, [x24, #1, MUL VL]\n"
150 "addvl x25, x25, #4\n"
151 ".inst 0x648ab213 // bfcvtnt z19.h, p4/M, z16.s\n"
152 "ld1w { z16.s }, p1/Z, [x24, #2, MUL VL]\n"
153 ".inst 0x648ab212 // bfcvtnt z18.h, p4/M, z16.s\n"
154 "ld1w { z16.s }, p0/Z, [x24, #3, MUL VL]\n"
155 "addvl x24, x24, #4\n"
156 ".inst 0x648ab211 // bfcvtnt z17.h, p4/M, z16.s\n"
157 "st1h { z20.h }, p4, [x21]\n"
158 "st1h { z19.h }, p4, [x21, #1, MUL VL]\n"
159 "st1h { z18.h }, p4, [x21, #2, MUL VL]\n"
160 "st1h { z17.h }, p4, [x21, #3, MUL VL]\n"
161 "add x21, x21, %x[out_stride]\n"
162 "bgt 6b\n"
163 "7:" // Tail row loop: Column loop skip
164 "cmp %x[height], #0x1\n"
165 "addvl %x[out], %x[out], #4\n"
166 "bge 5b\n"
167 "8:" // Done
168 ".inst 0xd503467f // SMSTOP\n"
169 : [height] "+&r" (height), [in] "+&r" (in), [out] "+&r" (out)
170 : [in_stride] "r" (in_stride), [out_stride] "r" (out_stride), [pad_row] "r" (pad_row), [width] "r" (width)
171 : "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"
172 );
173 }
174
175 } // anonymous namespace
176 template<>
Transform(bfloat16 * out,const float * in,int stride,int x0,int xmax,int k0,int kmax)177 void Transform<4, 2, true, VLType::SME>(
178 bfloat16 *out, const float *in, int stride, int x0, int xmax, int k0, int kmax)
179 {
180 sme_transpose_interleave_4VL_2x2_fp32bf16(
181 out,
182 in + k0 * stride + x0,
183 (xmax-x0),
184 stride * sizeof(float),
185 (kmax-k0)
186 );
187 }
188
189 #endif
190