Frank Barchard | baa9ead | 2019-10-18 18:06:41 -0700 | [diff] [blame] | 1 | // Copyright 2019 Google LLC |
| 2 | // |
| 3 | // This source code is licensed under the BSD-style license found in the |
| 4 | // LICENSE file in the root directory of this source tree. |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 5 | |
| 6 | #include <xnnpack/assembly.h> |
| 7 | |
| 8 | # void xnn_f32_igemm_ukernel_1x12__aarch64_neonfma_cortex_a53( |
| 9 | # size_t mr, (x0) - unused. mr = 1 |
| 10 | # size_t nc, x1 |
| 11 | # size_t kc, x2 / x0 |
| 12 | # size_t ks, x3 / x9 |
| 13 | # const float**restrict a, x4 |
| 14 | # const float*restrict w, x5 |
| 15 | # float*restrict c, x6 |
| 16 | # size_t cm_stride, (x7) - unused |
| 17 | # size_t cn_stride, [sp] -> x10 |
| 18 | # size_t a_offset, [sp + 8] -> x11 |
| 19 | # const float* zero, [sp + 16] -> x12 |
Marat Dukhan | eb09a6b | 2020-04-08 17:34:32 -0700 | [diff] [blame] | 20 | # const xnn_f32_minmax_params params [sp + 24] -> x8 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 21 | |
| 22 | # d8-d15 need to be preserved if used. |
| 23 | # x19-30 need to be preserved if used. |
| 24 | |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 25 | # A pointer |
| 26 | # x8 a0 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 27 | |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 28 | # C pointer |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 29 | # x6 c0 |
| 30 | |
| 31 | # Vector register usage and GPR shadows |
| 32 | # a0 v0 first set of A |
| 33 | # a0 v1 second set of A |
| 34 | # B v2 v3 v4 x14 x15 x16 first set of B |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 35 | # B v5 v6 v7 x17 x13 x7 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 36 | # B v23 v24 v25 x14 x15 x16 second set of B (same x as first set) |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 37 | # B v17 v18 v19 x17 x13 x7 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 38 | # C v20 v21 v22 |
| 39 | |
| 40 | BEGIN_FUNCTION xnn_f32_igemm_ukernel_1x12__aarch64_neonfma_cortex_a53 |
| 41 | |
| 42 | # Load cn_stride, a_offset |
| 43 | LDP x10, x11, [sp] |
| 44 | |
| 45 | # Load zero, clamping params pointer |
| 46 | LDP x12, x8, [sp, 16] |
| 47 | |
Marat Dukhan | eb09a6b | 2020-04-08 17:34:32 -0700 | [diff] [blame] | 48 | # Load min/max values |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 49 | LD2R {v30.4s, v31.4s}, [x8] |
| 50 | |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 51 | 0: |
| 52 | # Load initial bias from w into accumulators |
| 53 | LD1 {v20.16b, v21.16b, v22.16b}, [x5], 48 |
| 54 | |
| 55 | PRFM PLDL1KEEP, [x5] |
| 56 | PRFM PLDL1KEEP, [x5, 64] |
| 57 | PRFM PLDL1KEEP, [x5, 128] |
| 58 | PRFM PLDL1KEEP, [x5, 192] |
| 59 | PRFM PLDL1KEEP, [x5, 256] |
| 60 | PRFM PLDL1KEEP, [x5, 320] |
| 61 | |
| 62 | MOV x9, x3 // p = ks |
| 63 | |
| 64 | 1: |
| 65 | # Load next A pointer |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 66 | LDR x8, [x4], 8 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 67 | |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 68 | CMP x8, x12 // if a0 == zero |
| 69 | ADD x8, x8, x11 // a0 += a_offset |
| 70 | CSEL x8, x12, x8, EQ // a0 = zero, else += a0 + a_offset |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 71 | |
| 72 | # Is there at least 4 floats (16 bytes) for prologue + epilogue? |
| 73 | SUBS x0, x2, 16 // k = kc - 16 |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 74 | B.LO 5f |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 75 | |
| 76 | # Prologue - loads for first group of 6 fma |
| 77 | |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 78 | # Read first block of 1 A. |
| 79 | LDR d0, [x8], 8 // a0 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 80 | |
| 81 | LDR d2, [x5] // vb0x0123 |
| 82 | LDR x14, [x5, 8] |
| 83 | |
| 84 | LDR d3, [x5, 16] // vb0x25567 |
| 85 | LDR x15, [x5, 24] |
| 86 | |
| 87 | LDR d4, [x5, 32] // vb0x89AB |
| 88 | LDR x16, [x5, 40] |
| 89 | |
| 90 | LDR d5, [x5, 48] // vb1x0123 |
| 91 | LDR x17, [x5, 56] |
| 92 | |
| 93 | LDR d6, [x5, 64] // vb1x25567 |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 94 | LDR x13, [x5, 72] |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 95 | |
| 96 | LDR d7, [x5, 80] // vb1x89AB |
| 97 | LDR x7, [x5, 88] |
| 98 | INS v2.d[1], x14 |
| 99 | ADD x5, x5, 96 |
| 100 | |
| 101 | # Is there at least 4 floats (16 bytes) for main loop? |
| 102 | SUBS x0, x0, 16 // 4 floats for main loop |
| 103 | B.LO 3f |
| 104 | |
| 105 | # Main loop - 4 floats of A (16 bytes) |
| 106 | 2: |
| 107 | # First group of 6 fma. |
| 108 | # A is loaded for 2nd group into v1 |
| 109 | |
| 110 | # BLOCK 0 |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 111 | LDR d1, [x8], 8 // a0 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 112 | INS v3.d[1], x15 |
| 113 | FMLA v20.4s, v2.4s, v0.s[0] |
| 114 | PRFM PLDL1KEEP, [x5, 192] |
| 115 | |
| 116 | # BLOCK 1 |
| 117 | INS v4.d[1], x16 |
| 118 | FMLA v21.4s, v3.4s, v0.s[0] |
| 119 | PRFM PLDL1KEEP, [x5, 256] |
| 120 | |
| 121 | # BLOCK 2 |
| 122 | LDR d23, [x5] // vb0x0123 |
| 123 | INS v5.d[1], x17 |
| 124 | LDR x14, [x5, 8] |
| 125 | PRFM PLDL1KEEP, [x5, 320] |
| 126 | FMLA v22.4s, v4.4s, v0.s[0] |
| 127 | |
| 128 | # BLOCK 3 |
| 129 | LDR d24, [x5, 16] // vb0x25567 |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 130 | INS v6.d[1], x13 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 131 | LDR x15, [x5, 24] |
| 132 | |
| 133 | # BLOCK 4 |
| 134 | LDR d25, [x5, 32] // vb0x89AB |
| 135 | INS v7.d[1], x7 |
| 136 | FMLA v20.4s, v5.4s, v0.s[1] |
| 137 | LDR x16, [x5, 40] |
| 138 | |
| 139 | # BLOCK 5 |
| 140 | LDR d17, [x5, 48] // vb1x0123 |
| 141 | LDR x17, [x5, 56] |
| 142 | FMLA v21.4s, v6.4s, v0.s[1] |
| 143 | |
| 144 | # BLOCK 6 |
| 145 | LDR d18, [x5, 64] // vb1x25567 |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 146 | LDR x13, [x5, 72] |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 147 | FMLA v22.4s, v7.4s, v0.s[1] |
| 148 | |
| 149 | # BLOCK 7 |
| 150 | LDR d19, [x5, 80] // vb1x89AB |
| 151 | INS v23.d[1], x14 // v23 was loaded in block 2 |
| 152 | LDR x7, [x5, 88] |
| 153 | |
| 154 | # Second group of 6 fma. |
| 155 | # A is loaded for 1st group into v0 |
| 156 | |
| 157 | # BLOCK 0 |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 158 | LDR d0, [x8], 8 // a0 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 159 | INS v24.d[1], x15 |
| 160 | FMLA v20.4s, v23.4s, v1.s[0] |
| 161 | |
| 162 | # BLOCK 1 |
| 163 | INS v25.d[1], x16 |
| 164 | FMLA v21.4s, v24.4s, v1.s[0] |
| 165 | |
| 166 | # BLOCK 2 |
| 167 | LDR d2, [x5, 96] // vb0x0123 |
| 168 | INS v17.d[1], x17 |
| 169 | LDR x14, [x5, 104] |
| 170 | FMLA v22.4s, v25.4s, v1.s[0] |
| 171 | |
| 172 | # BLOCK 3 |
| 173 | LDR d3, [x5, 112] // vb0x25567 |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 174 | INS v18.d[1], x13 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 175 | LDR x15, [x5, 120] |
| 176 | |
| 177 | # BLOCK 4 |
| 178 | LDR d4, [x5, 128] // vb0x89AB |
| 179 | INS v19.d[1], x7 |
| 180 | FMLA v20.4s, v17.4s, v1.s[1] |
| 181 | LDR x16, [x5, 136] |
| 182 | |
| 183 | # BLOCK 5 |
| 184 | LDR d5, [x5, 144] // vb1x0123 |
| 185 | LDR x17, [x5, 152] |
| 186 | FMLA v21.4s, v18.4s, v1.s[1] |
| 187 | |
| 188 | # BLOCK 6 |
| 189 | LDR d6, [x5, 160] // vb1x25567 |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 190 | LDR x13, [x5, 168] |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 191 | SUBS x0, x0, 16 |
| 192 | FMLA v22.4s, v19.4s, v1.s[1] |
| 193 | |
| 194 | # BLOCK 7 |
| 195 | LDR d7, [x5, 176] // vb1x89AB |
| 196 | INS v2.d[1], x14 |
| 197 | LDR x7, [x5, 184] |
| 198 | ADD x5, x5, 192 |
| 199 | B.HS 2b |
| 200 | |
| 201 | # Epilogue |
| 202 | # First block same as main loop. Second block has no loads. |
| 203 | 3: |
| 204 | # BLOCK 0 |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 205 | LDR d1, [x8], 8 // a0 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 206 | INS v3.d[1], x15 |
| 207 | FMLA v20.4s, v2.4s, v0.s[0] |
| 208 | PRFM PLDL1KEEP, [x5, 192] |
| 209 | |
| 210 | # BLOCK 1 |
| 211 | INS v4.d[1], x16 |
| 212 | FMLA v21.4s, v3.4s, v0.s[0] |
| 213 | PRFM PLDL1KEEP, [x5, 256] |
| 214 | |
| 215 | # BLOCK 2 |
| 216 | LDR d23, [x5] // vb0x0123 |
| 217 | INS v5.d[1], x17 |
| 218 | LDR x14, [x5, 8] |
| 219 | PRFM PLDL1KEEP, [x5, 320] |
| 220 | FMLA v22.4s, v4.4s, v0.s[0] |
| 221 | |
| 222 | # BLOCK 3 |
| 223 | LDR d24, [x5, 16] // vb0x25567 |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 224 | INS v6.d[1], x13 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 225 | LDR x15, [x5, 24] |
| 226 | |
| 227 | # BLOCK 4 |
| 228 | LDR d25, [x5, 32] // vb0x89AB |
| 229 | INS v7.d[1], x7 |
| 230 | FMLA v20.4s, v5.4s, v0.s[1] |
| 231 | LDR x16, [x5, 40] |
| 232 | |
| 233 | # BLOCK 5 |
| 234 | LDR d17, [x5, 48] // vb1x0123 |
| 235 | LDR x17, [x5, 56] |
| 236 | FMLA v21.4s, v6.4s, v0.s[1] |
| 237 | |
| 238 | # BLOCK 6 |
| 239 | LDR d18, [x5, 64] // vb1x25567 |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 240 | LDR x13, [x5, 72] |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 241 | FMLA v22.4s, v7.4s, v0.s[1] |
| 242 | |
| 243 | # BLOCK 7 |
| 244 | LDR d19, [x5, 80] // vb1x89AB |
| 245 | INS v23.d[1], x14 // v23 was loaded in block 2 |
| 246 | LDR x7, [x5, 88] |
| 247 | ADD x5, x5, 96 |
| 248 | |
| 249 | # Second group of 6 fma. 8 blocks of 4 cycles. |
| 250 | # Epilogue version does no loads |
| 251 | |
| 252 | # BLOCK 0 |
| 253 | INS v24.d[1], x15 |
| 254 | FMLA v20.4s, v23.4s, v1.s[0] |
| 255 | |
| 256 | # BLOCK 1 |
| 257 | INS v25.d[1], x16 |
| 258 | FMLA v21.4s, v24.4s, v1.s[0] |
| 259 | |
| 260 | # BLOCK 2 |
| 261 | INS v17.d[1], x17 |
| 262 | FMLA v22.4s, v25.4s, v1.s[0] |
| 263 | |
| 264 | # BLOCK 3 |
Frank Barchard | 6f8c966 | 2020-03-23 04:16:51 -0700 | [diff] [blame] | 265 | INS v18.d[1], x13 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 266 | |
| 267 | # BLOCK 4 |
| 268 | INS v19.d[1], x7 |
| 269 | FMLA v20.4s, v17.4s, v1.s[1] |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 270 | TST x0, 15 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 271 | |
| 272 | # BLOCK 5 |
| 273 | FMLA v21.4s, v18.4s, v1.s[1] |
| 274 | |
| 275 | # BLOCK 6 |
| 276 | FMLA v22.4s, v19.4s, v1.s[1] |
| 277 | |
| 278 | # BLOCK 7 |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 279 | # Is there a remainder?- 2 floats of A (8 bytes) or less |
| 280 | B.NE 5f |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 281 | |
| 282 | 4: |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 283 | # ks loop |
| 284 | SUBS x9, x9, 8 // ks -= MR * sizeof(void*) |
Frank Barchard | 16d7272 | 2020-02-12 15:46:20 -0800 | [diff] [blame] | 285 | B.HI 1b |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 286 | |
| 287 | # Clamp |
Marat Dukhan | a51cf48 | 2020-04-08 16:16:19 -0700 | [diff] [blame] | 288 | FMAX v20.4s, v20.4s, v30.4s |
| 289 | FMAX v21.4s, v21.4s, v30.4s |
| 290 | FMAX v22.4s, v22.4s, v30.4s |
| 291 | FMIN v20.4s, v20.4s, v31.4s |
| 292 | FMIN v21.4s, v21.4s, v31.4s |
| 293 | FMIN v22.4s, v22.4s, v31.4s |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 294 | |
| 295 | # Store full 1 x 12 |
Frank Barchard | 6383f49 | 2019-12-04 22:33:49 -0800 | [diff] [blame] | 296 | SUBS x1, x1, 12 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 297 | B.LO 8f |
| 298 | |
| 299 | ST1 {v20.16b, v21.16b, v22.16b}, [x6], x10 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 300 | SUB x4, x4, x3 // a -= ks |
| 301 | |
| 302 | # nc loop |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 303 | B.HI 0b |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 304 | RET |
| 305 | |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 306 | 5: |
| 307 | # Is there a remainder?- 2 floats of A (8 bytes) |
| 308 | TBZ x0, 3, 6f |
| 309 | |
| 310 | # Remainder- 2 floats of A (8 bytes) |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 311 | LDR d0, [x8], 8 // a0 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 312 | LD1 {v2.16b, v3.16b, v4.16b}, [x5], 48 |
| 313 | LD1 {v5.16b, v6.16b, v7.16b}, [x5], 48 |
| 314 | |
| 315 | # First block of 3 B |
| 316 | FMLA v20.4s, v2.4s, v0.s[0] |
| 317 | FMLA v21.4s, v3.4s, v0.s[0] |
| 318 | FMLA v22.4s, v4.4s, v0.s[0] |
| 319 | |
| 320 | # Second block of 3 B |
| 321 | FMLA v20.4s, v5.4s, v0.s[1] |
| 322 | FMLA v21.4s, v6.4s, v0.s[1] |
| 323 | FMLA v22.4s, v7.4s, v0.s[1] |
| 324 | |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 325 | TBZ x0, 2, 4b |
| 326 | 6: |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 327 | # Remainder - 1 float of A (4 bytes) |
Frank Barchard | afbca9a | 2019-10-07 18:20:45 -0700 | [diff] [blame] | 328 | LDR s0, [x8], 4 // a0 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 329 | LD1 {v2.16b, v3.16b, v4.16b}, [x5], 48 |
| 330 | |
| 331 | FMLA v20.4s, v2.4s, v0.s[0] |
| 332 | FMLA v21.4s, v3.4s, v0.s[0] |
| 333 | FMLA v22.4s, v4.4s, v0.s[0] |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 334 | B 4b |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 335 | |
| 336 | 8: |
Frank Barchard | 6383f49 | 2019-12-04 22:33:49 -0800 | [diff] [blame] | 337 | ADD x1, x1, 12 |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 338 | # Store odd channels |
| 339 | TBZ x1, 3, 9f |
| 340 | STP q20, q21, [x6] |
| 341 | ADD x6, x6, 32 |
| 342 | MOV v20.16b, v22.16b |
| 343 | |
| 344 | 9: |
| 345 | TBZ x1, 2, 10f |
| 346 | STR q20, [x6], 16 |
| 347 | MOV v20.16b, v21.16b |
| 348 | |
| 349 | 10: |
| 350 | TBZ x1, 1, 11f |
| 351 | STR d20, [x6], 8 |
| 352 | DUP d20, v20.d[1] |
| 353 | |
| 354 | 11: |
| 355 | TBZ x1, 0, 12f |
| 356 | STR s20, [x6] |
| 357 | 12: |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 358 | RET |
| 359 | |
| 360 | END_FUNCTION xnn_f32_igemm_ukernel_1x12__aarch64_neonfma_cortex_a53 |
| 361 | |
| 362 | #ifdef __ELF__ |
| 363 | .section ".note.GNU-stack","",%progbits |
| 364 | #endif |