File size: 12,532 Bytes
8b7c501 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 |
// Copyright 2019 Google LLC
//
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree.
#include <xnnpack/assembly.h>
# void xnn_f32_gemm${"inc" if INC else ""}_minmax_ukernel_4x2__asm_aarch64_neonfma_cortex_a75${"_prfm" if PREFETCH else ""}(
# size_t mr, x0
# size_t nc, x1
# size_t kc, x2 / x0
# const float* a, x3
# size_t a_stride, x4
# const float* w, x5
# float* c, x6
# size_t cm_stride, x7
# size_t cn_stride, [sp] -> x14
$if INC:
# const float* acc, [sp + 8] -> x15
# const xnn_f32_minmax_params* params) [sp + 16] -> x8
$else:
# const xnn_f32_minmax_params* params) [sp + 8] -> x8
# d8-d15, x19-x30 need to be preserved if used. x18 is reserved by the OS.
// Register usage
// A0 x3 v0 v4
// A1 x11 v1 v5
// A2 x12 v2 v6
// A3 x4 v3 v7
// B x5 v16 v17 v18 v19 v20 v21 v22 v23
// C0 x6 v24 v25
// C1 x9 v26 v27
// C2 x10 v28 v29
// C3 x7 v30 v31
// clamp v4 v5
BEGIN_FUNCTION xnn_f32_gemm${"inc" if INC else ""}_minmax_ukernel_4x2__asm_aarch64_neonfma_cortex_a75${"_prfm" if PREFETCH else ""}
$if INC:
# Load cn_stride, acc
LDP x14, x15, [sp]
# Load params pointer
LDR x8, [sp, 16]
$else:
# Load cn_stride, params pointer
LDP x14, x8, [sp]
# Load min/max values
LD2R {v4.2s, v5.2s}, [x8]
# Clamp A and C pointers
CMP x0, 2 // if mr < 2
ADD x11, x3, x4 // a1 = a0 + a_stride
ADD x9, x6, x7 // c1 = c0 + cm_stride
CSEL x11, x3, x11, LO // a1 = a0
CSEL x9, x6, x9, LO // c1 = c0
ADD x12, x11, x4 // a2 = a1 + a_stride
ADD x10, x9, x7 // c2 = c1 + cm_stride
// if mr <= 2
CSEL x12, x11, x12, LS // a2 = a1
CSEL x10, x9, x10, LS // c2 = c1
CMP x0, 4 // if mr < 4
ADD x4, x12, x4 // a3 = a2 + a_stride
ADD x7, x10, x7 // c3 = c2 + cm_stride
CSEL x4, x12, x4, LO // a3 = a2
CSEL x7, x10, x7, LO // c3 = c2
0:
$if INC:
# Load initial accumulators
LDR d24, [x15], 8
LDR d26, [x15], 8
LDR d28, [x15], 8
LDR d30, [x15], 8
$else:
# Load initial bias from w into accumulators
LDR d24, [x5], 8
MOV v26.8b, v24.8b
MOV v30.8b, v24.8b
MOV v28.8b, v24.8b
MOVI v25.2s, 0
$if PREFETCH:
PRFM PLDL1KEEP, [x5, 64]
MOVI v27.2s, 0
$if PREFETCH:
PRFM PLDL1KEEP, [x5, 128]
MOVI v29.2s, 0
$if PREFETCH:
PRFM PLDL1KEEP, [x5, 192]
MOVI v31.2s, 0
$if PREFETCH:
PRFM PLDL1KEEP, [x5, 256]
# Is there at least 8 floats (32 bytes) for prologue + epilogue?
SUBS x0, x2, 32 // k = kc - 32
B.LO 4f
# Prologue
# Read first block of 4 A and B.
LDR q0, [x3], 16
LDP d20, d21, [x5], 16
LDR q1, [x11], 16
LDR q2, [x12], 16
LDR q3, [x4], 16
LDP d22, d23, [x5], 16
# Is there at least 32. yes do main loop
SUBS x0, x0, 32
B.LO 2f
# Main loop - 8 floats of A (32 bytes)
1:
# First block of 4. FMA for first 4, loads for 2nd block of 4.
FMLA v24.2s, v20.2s, v0.s[0]
LDR q4, [x3], 16
FMLA v26.2s, v20.2s, v1.s[0]
FMLA v28.2s, v20.2s, v2.s[0]
LDR d16, [x5, 0]
FMLA v30.2s, v20.2s, v3.s[0]
FMLA v25.2s, v21.2s, v0.s[1]
LDR q5, [x11], 16
FMLA v27.2s, v21.2s, v1.s[1]
FMLA v29.2s, v21.2s, v2.s[1]
LDR q6, [x12], 16
FMLA v31.2s, v21.2s, v3.s[1]
FMLA v24.2s, v22.2s, v0.s[2]
LDR q7, [x4], 16
FMLA v26.2s, v22.2s, v1.s[2]
FMLA v28.2s, v22.2s, v2.s[2]
LDR d17, [x5, 8]
FMLA v30.2s, v22.2s, v3.s[2]
FMLA v25.2s, v23.2s, v0.s[3]
LDR d18, [x5, 16]
FMLA v27.2s, v23.2s, v1.s[3]
FMLA v29.2s, v23.2s, v2.s[3]
LDR d19, [x5, 24]
FMLA v31.2s, v23.2s, v3.s[3]
$if PREFETCH:
PRFM PLDL1KEEP, [x5, 320]
# Second block of 4. FMA for second 4, loads for 1st block of 4.
FMLA v24.2s, v16.2s, v4.s[0]
LDR q0, [x3], 16
FMLA v26.2s, v16.2s, v5.s[0]
FMLA v28.2s, v16.2s, v6.s[0]
LDR d20, [x5, 32]
FMLA v30.2s, v16.2s, v7.s[0]
FMLA v25.2s, v17.2s, v4.s[1]
LDR q1, [x11], 16
FMLA v27.2s, v17.2s, v5.s[1]
FMLA v29.2s, v17.2s, v6.s[1]
LDR q2, [x12], 16
FMLA v31.2s, v17.2s, v7.s[1]
FMLA v24.2s, v18.2s, v4.s[2]
LDR q3, [x4], 16
FMLA v26.2s, v18.2s, v5.s[2]
FMLA v28.2s, v18.2s, v6.s[2]
LDR d21, [x5, 40]
FMLA v30.2s, v18.2s, v7.s[2]
SUBS x0, x0, 32
FMLA v25.2s, v19.2s, v4.s[3]
LDR d22, [x5, 48]
FMLA v27.2s, v19.2s, v5.s[3]
LDR d23, [x5, 56]
FMLA v29.2s, v19.2s, v6.s[3]
ADD x5, x5, 64
FMLA v31.2s, v19.2s, v7.s[3]
B.HS 1b
2:
# Epilogue
# First block of 4. FMA for first 4, loads for 2nd block of 4.
FMLA v24.2s, v20.2s, v0.s[0]
LDR q4, [x3], 16
FMLA v26.2s, v20.2s, v1.s[0]
FMLA v28.2s, v20.2s, v2.s[0]
LDR d16, [x5, 0]
FMLA v30.2s, v20.2s, v3.s[0]
FMLA v25.2s, v21.2s, v0.s[1]
LDR q5, [x11], 16
FMLA v27.2s, v21.2s, v1.s[1]
FMLA v29.2s, v21.2s, v2.s[1]
LDR q6, [x12], 16
FMLA v31.2s, v21.2s, v3.s[1]
FMLA v24.2s, v22.2s, v0.s[2]
LDR q7, [x4], 16
FMLA v26.2s, v22.2s, v1.s[2]
FMLA v28.2s, v22.2s, v2.s[2]
LDR d17, [x5, 8]
FMLA v30.2s, v22.2s, v3.s[2]
FMLA v25.2s, v23.2s, v0.s[3]
LDR d18, [x5, 16]
FMLA v27.2s, v23.2s, v1.s[3]
FMLA v29.2s, v23.2s, v2.s[3]
LDR d19, [x5, 24]
FMLA v31.2s, v23.2s, v3.s[3]
$if PREFETCH:
PRFM PLDL1KEEP, [x5, 320]
# Second block of 4. FMA for second 4, no loads
FMLA v24.2s, v16.2s, v4.s[0]
FMLA v26.2s, v16.2s, v5.s[0]
FMLA v28.2s, v16.2s, v6.s[0]
FMLA v30.2s, v16.2s, v7.s[0]
FMLA v25.2s, v17.2s, v4.s[1]
FMLA v27.2s, v17.2s, v5.s[1]
FMLA v29.2s, v17.2s, v6.s[1]
FMLA v31.2s, v17.2s, v7.s[1]
FMLA v24.2s, v18.2s, v4.s[2]
FMLA v26.2s, v18.2s, v5.s[2]
FMLA v28.2s, v18.2s, v6.s[2]
ADDS x0, x0, 32
FMLA v30.2s, v18.2s, v7.s[2]
FMLA v25.2s, v19.2s, v4.s[3]
ADD x5, x5, 32
FMLA v27.2s, v19.2s, v5.s[3]
FMLA v29.2s, v19.2s, v6.s[3]
LD2R {v4.2s, v5.2s}, [x8] // Load min/max values
FMLA v31.2s, v19.2s, v7.s[3]
# Is there a remainder? up to 8 floats (32 bytes)
B.NE 4f
3:
FADD v24.2s, v24.2s, v25.2s
FADD v26.2s, v26.2s, v27.2s
FADD v28.2s, v28.2s, v29.2s
FADD v30.2s, v30.2s, v31.2s
# Clamp
FMAX v24.2s, v24.2s, v4.2s
FMAX v26.2s, v26.2s, v4.2s
FMAX v28.2s, v28.2s, v4.2s
FMAX v30.2s, v30.2s, v4.2s
SUBS x1, x1, 2
FMIN v24.2s, v24.2s, v5.2s
FMIN v26.2s, v26.2s, v5.2s
FMIN v28.2s, v28.2s, v5.2s
FMIN v30.2s, v30.2s, v5.2s
# Store full 4 x 2
B.LO 7f
$if INC:
STR d30, [x7]
SUB x3, x3, x2 // a0 -= kc
ADD x7, x7, x14
STR d28, [x10]
SUB x11, x11, x2 // a1 -= kc
ADD x10, x10, x14
STR d26, [x9]
SUB x12, x12, x2 // a2 -= kc
ADD x9, x9, x14
STR d24, [x6]
SUB x4, x4, x2 // a3 -= kc
ADD x6, x6, x14
$else:
STR d24, [x6]
SUB x3, x3, x2 // a0 -= kc
ADD x6, x6, x14
STR d26, [x9]
SUB x11, x11, x2 // a1 -= kc
ADD x9, x9, x14
STR d28, [x10]
SUB x12, x12, x2 // a2 -= kc
ADD x10, x10, x14
STR d30, [x7]
SUB x4, x4, x2 // a3 -= kc
ADD x7, x7, x14
B.HI 0b
RET
4:
# Remainder- 4 floats of A (16 bytes)
TBZ x0, 4, 5f
LDR q0, [x3], 16
LDP d20, d21, [x5], 16
LDR q1, [x11], 16
LDR q2, [x12], 16
LDR q3, [x4], 16
LDP d22, d23, [x5], 16
FMLA v24.2s, v20.2s, v0.s[0]
FMLA v26.2s, v20.2s, v1.s[0]
FMLA v28.2s, v20.2s, v2.s[0]
FMLA v30.2s, v20.2s, v3.s[0]
FMLA v25.2s, v21.2s, v0.s[1]
FMLA v27.2s, v21.2s, v1.s[1]
FMLA v29.2s, v21.2s, v2.s[1]
FMLA v31.2s, v21.2s, v3.s[1]
FMLA v24.2s, v22.2s, v0.s[2]
FMLA v26.2s, v22.2s, v1.s[2]
FMLA v28.2s, v22.2s, v2.s[2]
FMLA v30.2s, v22.2s, v3.s[2]
FMLA v25.2s, v23.2s, v0.s[3]
FMLA v27.2s, v23.2s, v1.s[3]
FMLA v29.2s, v23.2s, v2.s[3]
FMLA v31.2s, v23.2s, v3.s[3]
5:
# Remainder- 2 floats of A (8 bytes)
TBZ x0, 3, 6f
LDR d0, [x3], 8
LDP d20, d21, [x5], 16
LDR d1, [x11], 8
LDR d2, [x12], 8
LDR d3, [x4], 8
FMLA v24.2s, v20.2s, v0.s[0]
FMLA v26.2s, v20.2s, v1.s[0]
FMLA v28.2s, v20.2s, v2.s[0]
FMLA v30.2s, v20.2s, v3.s[0]
FMLA v25.2s, v21.2s, v0.s[1]
FMLA v27.2s, v21.2s, v1.s[1]
FMLA v29.2s, v21.2s, v2.s[1]
FMLA v31.2s, v21.2s, v3.s[1]
6:
# Remainder- 1 float of A (4 bytes)
TBZ x0, 2, 3b
LDR s0, [x3], 4
LDR d20, [x5], 8
LDR s1, [x11], 4
LDR s2, [x12], 4
LDR s3, [x4], 4
FMLA v24.2s, v20.2s, v0.s[0]
FMLA v26.2s, v20.2s, v1.s[0]
FMLA v28.2s, v20.2s, v2.s[0]
FMLA v30.2s, v20.2s, v3.s[0]
B 3b
# Store odd width
7:
$if INC:
STR s30, [x7]
STR s28, [x10]
STR s26, [x9]
STR s24, [x6]
$else:
STR s24, [x6]
STR s26, [x9]
STR s28, [x10]
STR s30, [x7]
RET
END_FUNCTION xnn_f32_gemm${"inc" if INC else ""}_minmax_ukernel_4x2__asm_aarch64_neonfma_cortex_a75${"_prfm" if PREFETCH else ""}
#ifdef __ELF__
.section ".note.GNU-stack","",%progbits
#endif
|