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)
29
30 namespace arm_conv {
31 namespace pooling {
32
33
sve_s8_nhwc_max_generic_depthfirst_impl(const uint64_t,const uint64_t n_valid_cells,uint64_t n_channels,const int8_t * const * const inptrs,int8_t * outptr)34 void sve_s8_nhwc_max_generic_depthfirst_impl(
35 const uint64_t,
36 const uint64_t n_valid_cells,
37 uint64_t n_channels,
38 const int8_t *const *const inptrs,
39 int8_t *outptr
40 )
41 {
42 __asm__ __volatile__(
43 "mov x28, #0x0\n"
44 "cntb x27\n"
45 "cntb x26, ALL, MUL #2\n"
46 "cntb x25, ALL, MUL #3\n"
47 "whilelt p4.b, x28, %x[n_channels]\n"
48 "whilelt p3.b, x27, %x[n_channels]\n"
49 "whilelt p2.b, x26, %x[n_channels]\n"
50 "whilelt p1.b, 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.b, #0x80\n"
56 "mov z7.b, #0x80\n"
57 "mov x19, %x[inptrs]\n"
58 "mov z6.b, #0x80\n"
59 "mov z5.b, #0x80\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 "ld1b { z4.b }, p4/Z, [x23, x28]\n"
66 "ld1b { z3.b }, p4/Z, [x22, x28]\n"
67 "ld1b { z2.b }, p4/Z, [x21, x28]\n"
68 "ld1b { z1.b }, p4/Z, [x20, x28]\n"
69 "ld1b { z0.b }, p3/Z, [x23, x27]\n"
70 "ld1b { z31.b }, p3/Z, [x22, x27]\n"
71 "ld1b { z22.b }, p3/Z, [x21, x27]\n"
72 "ld1b { z30.b }, p3/Z, [x20, x27]\n"
73 "ld1b { z29.b }, p2/Z, [x23, x26]\n"
74 "ld1b { z28.b }, p2/Z, [x22, x26]\n"
75 "ld1b { z21.b }, p2/Z, [x21, x26]\n"
76 "ld1b { z27.b }, p2/Z, [x20, x26]\n"
77 "ld1b { z26.b }, p1/Z, [x23, x25]\n"
78 "ld1b { z25.b }, p1/Z, [x22, x25]\n"
79 "ld1b { z20.b }, p1/Z, [x21, x25]\n"
80 "ld1b { z24.b }, p1/Z, [x20, x25]\n"
81 "beq 3f\n"
82 "2:" // 4-vectors of channels: 4 inputs loop
83 "movprfx z19, z4\n smax z19.b, p0/M, z19.b, z3.b\n"
84 "movprfx z23, z2\n smax z23.b, p0/M, z23.b, z1.b\n"
85 "ldp x23, x22, [x19, #0x0]\n"
86 "ldp x21, x20, [x19, #0x10]\n"
87 "movprfx z18, z0\n smax z18.b, p0/M, z18.b, z31.b\n"
88 "smax z22.b, p0/M, z22.b, z30.b\n"
89 "ld1b { z4.b }, p4/Z, [x23, x28]\n"
90 "ld1b { z3.b }, p4/Z, [x22, x28]\n"
91 "movprfx z17, z29\n smax z17.b, p0/M, z17.b, z28.b\n"
92 "smax z21.b, p0/M, z21.b, z27.b\n"
93 "ld1b { z2.b }, p4/Z, [x21, x28]\n"
94 "ld1b { z1.b }, p4/Z, [x20, x28]\n"
95 "movprfx z16, z26\n smax z16.b, p0/M, z16.b, z25.b\n"
96 "smax z20.b, p0/M, z20.b, z24.b\n"
97 "ld1b { z0.b }, p3/Z, [x23, x27]\n"
98 "ld1b { z31.b }, p3/Z, [x22, x27]\n"
99 "smax z19.b, p0/M, z19.b, z23.b\n"
100 "smax z18.b, p0/M, z18.b, z22.b\n"
101 "ld1b { z22.b }, p3/Z, [x21, x27]\n"
102 "ld1b { z30.b }, p3/Z, [x20, x27]\n"
103 "smax z17.b, p0/M, z17.b, z21.b\n"
104 "smax z16.b, p0/M, z16.b, z20.b\n"
105 "ld1b { z29.b }, p2/Z, [x23, x26]\n"
106 "ld1b { z28.b }, p2/Z, [x22, x26]\n"
107 "subs x24, x24, #0x1\n"
108 "smax z8.b, p0/M, z8.b, z19.b\n"
109 "ld1b { z21.b }, p2/Z, [x21, x26]\n"
110 "ld1b { z27.b }, p2/Z, [x20, x26]\n"
111 "smax z7.b, p0/M, z7.b, z18.b\n"
112 "smax z6.b, p0/M, z6.b, z17.b\n"
113 "ld1b { z26.b }, p1/Z, [x23, x25]\n"
114 "ld1b { z25.b }, p1/Z, [x22, x25]\n"
115 "smax z5.b, p0/M, z5.b, z16.b\n"
116 "add x19, x19, #0x20\n"
117 "ld1b { z20.b }, p1/Z, [x21, x25]\n"
118 "ld1b { z24.b }, p1/Z, [x20, x25]\n"
119 "bgt 2b\n"
120 "3:" // 4-vectors of channels: 4 inputs tail
121 "movprfx z19, z4\n smax z19.b, p0/M, z19.b, z3.b\n"
122 "movprfx z23, z2\n smax z23.b, p0/M, z23.b, z1.b\n"
123 "movprfx z18, z0\n smax z18.b, p0/M, z18.b, z31.b\n"
124 "smax z22.b, p0/M, z22.b, z30.b\n"
125 "movprfx z17, z29\n smax z17.b, p0/M, z17.b, z28.b\n"
126 "smax z21.b, p0/M, z21.b, z27.b\n"
127 "movprfx z16, z26\n smax z16.b, p0/M, z16.b, z25.b\n"
128 "smax z20.b, p0/M, z20.b, z24.b\n"
129 "smax z19.b, p0/M, z19.b, z23.b\n"
130 "smax z18.b, p0/M, z18.b, z22.b\n"
131 "smax z17.b, p0/M, z17.b, z21.b\n"
132 "smax z16.b, p0/M, z16.b, z20.b\n"
133 "smax z8.b, p0/M, z8.b, z19.b\n"
134 "smax z7.b, p0/M, z7.b, z18.b\n"
135 "smax z6.b, p0/M, z6.b, z17.b\n"
136 "smax z5.b, p0/M, z5.b, z16.b\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 "ld1b { z4.b }, p4/Z, [x23, x28]\n"
143 "subs x20, x20, #0x1\n"
144 "smax z8.b, p0/M, z8.b, z4.b\n"
145 "ld1b { z0.b }, p3/Z, [x23, x27]\n"
146 "ld1b { z29.b }, p2/Z, [x23, x26]\n"
147 "smax z7.b, p0/M, z7.b, z0.b\n"
148 "smax z6.b, p0/M, z6.b, z29.b\n"
149 "ld1b { z26.b }, p1/Z, [x23, x25]\n"
150 "smax z5.b, p0/M, z5.b, z26.b\n"
151 "bgt 5b\n"
152 "6:" // 4-vectors of channels: Single input loop: End
153 "st1b { z8.b }, p4, [%x[outptr], x28]\n"
154 "incb x28, ALL, MUL #4\n"
155 "st1b { z7.b }, p3, [%x[outptr], x27]\n"
156 "incb x27, ALL, MUL #4\n"
157 "st1b { z6.b }, p2, [%x[outptr], x26]\n"
158 "incb x26, ALL, MUL #4\n"
159 "st1b { z5.b }, p1, [%x[outptr], x25]\n"
160 "incb x25, ALL, MUL #4\n"
161 "whilelt p1.b, x25, %x[n_channels]\n"
162 "b.any 1b\n"
163 "7:" // Single vector of channels
164 "whilelt p4.b, 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.b, #0x80\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 "ld1b { z4.b }, p4/Z, [x23, x28]\n"
176 "ld1b { z3.b }, p4/Z, [x22, x28]\n"
177 "ld1b { z2.b }, p4/Z, [x21, x28]\n"
178 "ld1b { z1.b }, p4/Z, [x20, x28]\n"
179 "beq 10f\n"
180 "9:" // Single vector of channels: Loop: 4 inputs loop
181 "movprfx z19, z4\n smax z19.b, p0/M, z19.b, z3.b\n"
182 "movprfx z23, z2\n smax z23.b, p0/M, z23.b, z1.b\n"
183 "ldp x23, x22, [x19, #0x0]\n"
184 "ldp x21, x20, [x19, #0x10]\n"
185 "smax z19.b, p0/M, z19.b, z23.b\n"
186 "subs x24, x24, #0x1\n"
187 "ld1b { z4.b }, p4/Z, [x23, x28]\n"
188 "ld1b { z3.b }, p4/Z, [x22, x28]\n"
189 "smax z8.b, p0/M, z8.b, z19.b\n"
190 "add x19, x19, #0x20\n"
191 "ld1b { z2.b }, p4/Z, [x21, x28]\n"
192 "ld1b { z1.b }, p4/Z, [x20, x28]\n"
193 "bgt 9b\n"
194 "10:" // Single vector of channels: Loop: 4 inputs tail
195 "movprfx z19, z4\n smax z19.b, p0/M, z19.b, z3.b\n"
196 "movprfx z23, z2\n smax z23.b, p0/M, z23.b, z1.b\n"
197 "smax z19.b, p0/M, z19.b, z23.b\n"
198 "smax z8.b, p0/M, z8.b, z19.b\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 "ld1b { z4.b }, p4/Z, [x23, x28]\n"
205 "subs x20, x20, #0x1\n"
206 "smax z8.b, p0/M, z8.b, z4.b\n"
207 "bgt 12b\n"
208 "13:" // Single vector of channels: Loop: Single input loop: End
209 "st1b { z8.b }, p4, [%x[outptr], x28]\n"
210 "incb x28\n"
211 "whilelt p4.b, 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)
224