1 /*
2 * Copyright (c) 2021-2022 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 all
14 * 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 FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25 #include <cstdint>
26 #include <cstddef>
27
28 #if defined(ARM_COMPUTE_ENABLE_SVE) && defined(__ARM_FP16_ARGS)
29
30 namespace arm_conv {
31 namespace pooling {
32
33
sve_fp16_nhwc_max_generic_depthfirst_impl(const uint64_t,const uint64_t n_valid_cells,uint64_t n_channels,const __fp16 * const * const inptrs,__fp16 * outptr)34 void sve_fp16_nhwc_max_generic_depthfirst_impl(
35 const uint64_t,
36 const uint64_t n_valid_cells,
37 uint64_t n_channels,
38 const __fp16 *const *const inptrs,
39 __fp16 *outptr
40 )
41 {
42 __asm__ __volatile__(
43 "mov x28, #0x0\n"
44 "cnth x27\n"
45 "cnth x26, ALL, MUL #2\n"
46 "cnth x25, ALL, MUL #3\n"
47 "whilelt p4.h, x28, %x[n_channels]\n"
48 "whilelt p3.h, x27, %x[n_channels]\n"
49 "whilelt p2.h, x26, %x[n_channels]\n"
50 "whilelt p1.h, x25, %x[n_channels]\n"
51 "ptrue p0.b\n"
52 "b.none 7f\n"
53 "1:" // 4-vectors of channels
54 "lsr x24, %x[n_valid_cells], #0x2\n"
55 "mov z8.h, #0xfc00\n"
56 "mov z7.h, #0xfc00\n"
57 "mov x19, %x[inptrs]\n"
58 "mov z6.h, #0xfc00\n"
59 "mov z5.h, #0xfc00\n"
60 "cbz x24, 4f\n"
61 "ldp x23, x22, [x19, #0x0]\n"
62 "ldp x21, x20, [x19, #0x10]\n"
63 "subs x24, x24, #0x1\n"
64 "add x19, x19, #0x20\n"
65 "ld1h { z4.h }, p4/Z, [x23, x28, LSL #1]\n"
66 "ld1h { z3.h }, p4/Z, [x22, x28, LSL #1]\n"
67 "ld1h { z2.h }, p4/Z, [x21, x28, LSL #1]\n"
68 "ld1h { z1.h }, p4/Z, [x20, x28, LSL #1]\n"
69 "ld1h { z0.h }, p3/Z, [x23, x27, LSL #1]\n"
70 "ld1h { z31.h }, p3/Z, [x22, x27, LSL #1]\n"
71 "ld1h { z22.h }, p3/Z, [x21, x27, LSL #1]\n"
72 "ld1h { z30.h }, p3/Z, [x20, x27, LSL #1]\n"
73 "ld1h { z29.h }, p2/Z, [x23, x26, LSL #1]\n"
74 "ld1h { z28.h }, p2/Z, [x22, x26, LSL #1]\n"
75 "ld1h { z21.h }, p2/Z, [x21, x26, LSL #1]\n"
76 "ld1h { z27.h }, p2/Z, [x20, x26, LSL #1]\n"
77 "ld1h { z26.h }, p1/Z, [x23, x25, LSL #1]\n"
78 "ld1h { z25.h }, p1/Z, [x22, x25, LSL #1]\n"
79 "ld1h { z20.h }, p1/Z, [x21, x25, LSL #1]\n"
80 "ld1h { z24.h }, p1/Z, [x20, x25, LSL #1]\n"
81 "beq 3f\n"
82 "2:" // 4-vectors of channels: 4 inputs loop
83 "movprfx z19, z4\n fmax z19.h, p0/M, z19.h, z3.h\n"
84 "movprfx z23, z2\n fmax z23.h, p0/M, z23.h, z1.h\n"
85 "ldp x23, x22, [x19, #0x0]\n"
86 "ldp x21, x20, [x19, #0x10]\n"
87 "movprfx z18, z0\n fmax z18.h, p0/M, z18.h, z31.h\n"
88 "fmax z22.h, p0/M, z22.h, z30.h\n"
89 "ld1h { z4.h }, p4/Z, [x23, x28, LSL #1]\n"
90 "ld1h { z3.h }, p4/Z, [x22, x28, LSL #1]\n"
91 "movprfx z17, z29\n fmax z17.h, p0/M, z17.h, z28.h\n"
92 "fmax z21.h, p0/M, z21.h, z27.h\n"
93 "ld1h { z2.h }, p4/Z, [x21, x28, LSL #1]\n"
94 "ld1h { z1.h }, p4/Z, [x20, x28, LSL #1]\n"
95 "movprfx z16, z26\n fmax z16.h, p0/M, z16.h, z25.h\n"
96 "fmax z20.h, p0/M, z20.h, z24.h\n"
97 "ld1h { z0.h }, p3/Z, [x23, x27, LSL #1]\n"
98 "ld1h { z31.h }, p3/Z, [x22, x27, LSL #1]\n"
99 "fmax z19.h, p0/M, z19.h, z23.h\n"
100 "fmax z18.h, p0/M, z18.h, z22.h\n"
101 "ld1h { z22.h }, p3/Z, [x21, x27, LSL #1]\n"
102 "ld1h { z30.h }, p3/Z, [x20, x27, LSL #1]\n"
103 "fmax z17.h, p0/M, z17.h, z21.h\n"
104 "fmax z16.h, p0/M, z16.h, z20.h\n"
105 "ld1h { z29.h }, p2/Z, [x23, x26, LSL #1]\n"
106 "ld1h { z28.h }, p2/Z, [x22, x26, LSL #1]\n"
107 "subs x24, x24, #0x1\n"
108 "fmax z8.h, p0/M, z8.h, z19.h\n"
109 "ld1h { z21.h }, p2/Z, [x21, x26, LSL #1]\n"
110 "ld1h { z27.h }, p2/Z, [x20, x26, LSL #1]\n"
111 "fmax z7.h, p0/M, z7.h, z18.h\n"
112 "fmax z6.h, p0/M, z6.h, z17.h\n"
113 "ld1h { z26.h }, p1/Z, [x23, x25, LSL #1]\n"
114 "ld1h { z25.h }, p1/Z, [x22, x25, LSL #1]\n"
115 "fmax z5.h, p0/M, z5.h, z16.h\n"
116 "add x19, x19, #0x20\n"
117 "ld1h { z20.h }, p1/Z, [x21, x25, LSL #1]\n"
118 "ld1h { z24.h }, p1/Z, [x20, x25, LSL #1]\n"
119 "bgt 2b\n"
120 "3:" // 4-vectors of channels: 4 inputs tail
121 "movprfx z19, z4\n fmax z19.h, p0/M, z19.h, z3.h\n"
122 "movprfx z23, z2\n fmax z23.h, p0/M, z23.h, z1.h\n"
123 "movprfx z18, z0\n fmax z18.h, p0/M, z18.h, z31.h\n"
124 "fmax z22.h, p0/M, z22.h, z30.h\n"
125 "movprfx z17, z29\n fmax z17.h, p0/M, z17.h, z28.h\n"
126 "fmax z21.h, p0/M, z21.h, z27.h\n"
127 "movprfx z16, z26\n fmax z16.h, p0/M, z16.h, z25.h\n"
128 "fmax z20.h, p0/M, z20.h, z24.h\n"
129 "fmax z19.h, p0/M, z19.h, z23.h\n"
130 "fmax z18.h, p0/M, z18.h, z22.h\n"
131 "fmax z17.h, p0/M, z17.h, z21.h\n"
132 "fmax z16.h, p0/M, z16.h, z20.h\n"
133 "fmax z8.h, p0/M, z8.h, z19.h\n"
134 "fmax z7.h, p0/M, z7.h, z18.h\n"
135 "fmax z6.h, p0/M, z6.h, z17.h\n"
136 "fmax z5.h, p0/M, z5.h, z16.h\n"
137 "4:" // 4-vectors of channels: After loop
138 "ands x20, %x[n_valid_cells], #0x3\n"
139 "beq 6f\n"
140 "5:" // 4-vectors of channels: Single input loop
141 "ldr x23, [x19], #0x8\n"
142 "ld1h { z4.h }, p4/Z, [x23, x28, LSL #1]\n"
143 "subs x20, x20, #0x1\n"
144 "fmax z8.h, p0/M, z8.h, z4.h\n"
145 "ld1h { z0.h }, p3/Z, [x23, x27, LSL #1]\n"
146 "ld1h { z29.h }, p2/Z, [x23, x26, LSL #1]\n"
147 "fmax z7.h, p0/M, z7.h, z0.h\n"
148 "fmax z6.h, p0/M, z6.h, z29.h\n"
149 "ld1h { z26.h }, p1/Z, [x23, x25, LSL #1]\n"
150 "fmax z5.h, p0/M, z5.h, z26.h\n"
151 "bgt 5b\n"
152 "6:" // 4-vectors of channels: Single input loop: End
153 "st1h { z8.h }, p4, [%x[outptr], x28, LSL #1]\n"
154 "inch x28, ALL, MUL #4\n"
155 "st1h { z7.h }, p3, [%x[outptr], x27, LSL #1]\n"
156 "inch x27, ALL, MUL #4\n"
157 "st1h { z6.h }, p2, [%x[outptr], x26, LSL #1]\n"
158 "inch x26, ALL, MUL #4\n"
159 "st1h { z5.h }, p1, [%x[outptr], x25, LSL #1]\n"
160 "inch x25, ALL, MUL #4\n"
161 "whilelt p1.h, x25, %x[n_channels]\n"
162 "b.any 1b\n"
163 "7:" // Single vector of channels
164 "whilelt p4.h, x28, %x[n_channels]\n"
165 "b.none 14f\n"
166 "8:" // Single vector of channels: Loop
167 "lsr x24, %x[n_valid_cells], #0x2\n"
168 "mov z8.h, #0xfc00\n"
169 "mov x19, %x[inptrs]\n"
170 "cbz x24, 11f\n"
171 "ldp x23, x22, [x19, #0x0]\n"
172 "ldp x21, x20, [x19, #0x10]\n"
173 "subs x24, x24, #0x1\n"
174 "add x19, x19, #0x20\n"
175 "ld1h { z4.h }, p4/Z, [x23, x28, LSL #1]\n"
176 "ld1h { z3.h }, p4/Z, [x22, x28, LSL #1]\n"
177 "ld1h { z2.h }, p4/Z, [x21, x28, LSL #1]\n"
178 "ld1h { z1.h }, p4/Z, [x20, x28, LSL #1]\n"
179 "beq 10f\n"
180 "9:" // Single vector of channels: Loop: 4 inputs loop
181 "movprfx z19, z4\n fmax z19.h, p0/M, z19.h, z3.h\n"
182 "movprfx z23, z2\n fmax z23.h, p0/M, z23.h, z1.h\n"
183 "ldp x23, x22, [x19, #0x0]\n"
184 "ldp x21, x20, [x19, #0x10]\n"
185 "fmax z19.h, p0/M, z19.h, z23.h\n"
186 "subs x24, x24, #0x1\n"
187 "ld1h { z4.h }, p4/Z, [x23, x28, LSL #1]\n"
188 "ld1h { z3.h }, p4/Z, [x22, x28, LSL #1]\n"
189 "fmax z8.h, p0/M, z8.h, z19.h\n"
190 "add x19, x19, #0x20\n"
191 "ld1h { z2.h }, p4/Z, [x21, x28, LSL #1]\n"
192 "ld1h { z1.h }, p4/Z, [x20, x28, LSL #1]\n"
193 "bgt 9b\n"
194 "10:" // Single vector of channels: Loop: 4 inputs tail
195 "movprfx z19, z4\n fmax z19.h, p0/M, z19.h, z3.h\n"
196 "movprfx z23, z2\n fmax z23.h, p0/M, z23.h, z1.h\n"
197 "fmax z19.h, p0/M, z19.h, z23.h\n"
198 "fmax z8.h, p0/M, z8.h, z19.h\n"
199 "11:" // Single vector of channels: Loop: After loop
200 "ands x20, %x[n_valid_cells], #0x3\n"
201 "beq 13f\n"
202 "12:" // Single vector of channels: Loop: Single input loop
203 "ldr x23, [x19], #0x8\n"
204 "ld1h { z4.h }, p4/Z, [x23, x28, LSL #1]\n"
205 "subs x20, x20, #0x1\n"
206 "fmax z8.h, p0/M, z8.h, z4.h\n"
207 "bgt 12b\n"
208 "13:" // Single vector of channels: Loop: Single input loop: End
209 "st1h { z8.h }, p4, [%x[outptr], x28, LSL #1]\n"
210 "inch x28\n"
211 "whilelt p4.h, x28, %x[n_channels]\n"
212 "b.any 8b\n"
213 "14:" // End
214 :
215 : [inptrs] "r" (inptrs), [n_channels] "r" (n_channels), [n_valid_cells] "r" (n_valid_cells), [outptr] "r" (outptr)
216 : "cc", "memory", "p0", "p1", "p2", "p3", "p4", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27", "x28", "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7", "z8", "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23", "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31"
217 );
218 }
219
220 } // namespace pooling
221 } // namespace arm_conv
222
223 #endif // defined(ARM_COMPUTE_ENABLE_SVE) && defined(__ARM_FP16_ARGS)
224