Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2016 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 21 | * IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #include <sys/poll.h> |
Chris Wilson | a19ef05 | 2017-07-31 14:15:59 +0100 | [diff] [blame] | 25 | #include <sys/ioctl.h> |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 26 | |
| 27 | #include "igt.h" |
| 28 | #include "igt_vgem.h" |
Chris Wilson | 61f8de7 | 2017-07-20 10:08:28 +0100 | [diff] [blame^] | 29 | #include "igt_rand.h" |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 30 | |
Chris Wilson | 49f44c7 | 2016-11-14 21:24:52 +0000 | [diff] [blame] | 31 | #define LOCAL_PARAM_HAS_SCHEDULER 41 |
Chris Wilson | af0e1c5 | 2017-02-21 18:25:58 +0000 | [diff] [blame] | 32 | #define LOCAL_CONTEXT_PARAM_PRIORITY 6 |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 33 | |
| 34 | #define LO 0 |
| 35 | #define HI 1 |
| 36 | #define NOISE 2 |
| 37 | |
| 38 | #define MAX_PRIO 1023 |
| 39 | |
| 40 | #define BUSY_QLEN 8 |
| 41 | |
| 42 | IGT_TEST_DESCRIPTION("Check that we can control the order of execution"); |
| 43 | |
Chris Wilson | af0e1c5 | 2017-02-21 18:25:58 +0000 | [diff] [blame] | 44 | static int __ctx_set_priority(int fd, uint32_t ctx, int prio) |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 45 | { |
| 46 | struct local_i915_gem_context_param param; |
| 47 | |
| 48 | memset(¶m, 0, sizeof(param)); |
| 49 | param.context = ctx; |
| 50 | param.size = 0; |
| 51 | param.param = LOCAL_CONTEXT_PARAM_PRIORITY; |
| 52 | param.value = prio; |
| 53 | |
Chris Wilson | af0e1c5 | 2017-02-21 18:25:58 +0000 | [diff] [blame] | 54 | return __gem_context_set_param(fd, ¶m); |
| 55 | } |
| 56 | |
| 57 | static void ctx_set_priority(int fd, uint32_t ctx, int prio) |
| 58 | { |
| 59 | igt_assert_eq(__ctx_set_priority(fd, ctx, prio), 0); |
| 60 | } |
| 61 | |
| 62 | static void ctx_has_priority(int fd) |
| 63 | { |
| 64 | igt_require(__ctx_set_priority(fd, 0, MAX_PRIO) == 0); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | static void store_dword(int fd, uint32_t ctx, unsigned ring, |
| 68 | uint32_t target, uint32_t offset, uint32_t value, |
| 69 | uint32_t cork, unsigned write_domain) |
| 70 | { |
| 71 | const int gen = intel_gen(intel_get_drm_devid(fd)); |
| 72 | struct drm_i915_gem_exec_object2 obj[3]; |
| 73 | struct drm_i915_gem_relocation_entry reloc; |
| 74 | struct drm_i915_gem_execbuffer2 execbuf; |
| 75 | uint32_t batch[16]; |
| 76 | int i; |
| 77 | |
| 78 | memset(&execbuf, 0, sizeof(execbuf)); |
Chris Wilson | 4de67b2 | 2017-01-02 11:05:21 +0000 | [diff] [blame] | 79 | execbuf.buffers_ptr = to_user_pointer(obj + !cork); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 80 | execbuf.buffer_count = 2 + !!cork; |
| 81 | execbuf.flags = ring; |
| 82 | if (gen < 6) |
| 83 | execbuf.flags |= I915_EXEC_SECURE; |
| 84 | execbuf.rsvd1 = ctx; |
| 85 | |
| 86 | memset(obj, 0, sizeof(obj)); |
| 87 | obj[0].handle = cork; |
| 88 | obj[1].handle = target; |
| 89 | obj[2].handle = gem_create(fd, 4096); |
| 90 | |
| 91 | memset(&reloc, 0, sizeof(reloc)); |
| 92 | reloc.target_handle = obj[1].handle; |
| 93 | reloc.presumed_offset = 0; |
| 94 | reloc.offset = sizeof(uint32_t); |
| 95 | reloc.delta = offset; |
| 96 | reloc.read_domains = I915_GEM_DOMAIN_INSTRUCTION; |
| 97 | reloc.write_domain = write_domain; |
Chris Wilson | 4de67b2 | 2017-01-02 11:05:21 +0000 | [diff] [blame] | 98 | obj[2].relocs_ptr = to_user_pointer(&reloc); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 99 | obj[2].relocation_count = 1; |
| 100 | |
| 101 | i = 0; |
| 102 | batch[i] = MI_STORE_DWORD_IMM | (gen < 6 ? 1 << 22 : 0); |
| 103 | if (gen >= 8) { |
| 104 | batch[++i] = offset; |
| 105 | batch[++i] = 0; |
| 106 | } else if (gen >= 4) { |
| 107 | batch[++i] = 0; |
| 108 | batch[++i] = offset; |
| 109 | reloc.offset += sizeof(uint32_t); |
| 110 | } else { |
| 111 | batch[i]--; |
| 112 | batch[++i] = offset; |
| 113 | } |
| 114 | batch[++i] = value; |
| 115 | batch[++i] = MI_BATCH_BUFFER_END; |
| 116 | gem_write(fd, obj[2].handle, 0, batch, sizeof(batch)); |
| 117 | gem_execbuf(fd, &execbuf); |
| 118 | gem_close(fd, obj[2].handle); |
| 119 | } |
| 120 | |
| 121 | static uint32_t *make_busy(int fd, uint32_t target, unsigned ring) |
| 122 | { |
| 123 | const int gen = intel_gen(intel_get_drm_devid(fd)); |
| 124 | struct drm_i915_gem_exec_object2 obj[2]; |
| 125 | struct drm_i915_gem_relocation_entry reloc[2]; |
| 126 | struct drm_i915_gem_execbuffer2 execbuf; |
| 127 | uint32_t *batch; |
| 128 | int i; |
| 129 | |
| 130 | memset(&execbuf, 0, sizeof(execbuf)); |
Chris Wilson | 4de67b2 | 2017-01-02 11:05:21 +0000 | [diff] [blame] | 131 | execbuf.buffers_ptr = to_user_pointer(obj + !target); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 132 | execbuf.buffer_count = 1 + !!target; |
| 133 | |
| 134 | memset(obj, 0, sizeof(obj)); |
| 135 | obj[0].handle = target; |
| 136 | obj[1].handle = gem_create(fd, 4096); |
| 137 | batch = gem_mmap__wc(fd, obj[1].handle, 0, 4096, PROT_WRITE); |
| 138 | gem_set_domain(fd, obj[1].handle, |
| 139 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 140 | |
Chris Wilson | 4de67b2 | 2017-01-02 11:05:21 +0000 | [diff] [blame] | 141 | obj[1].relocs_ptr = to_user_pointer(reloc); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 142 | obj[1].relocation_count = 1 + !!target; |
| 143 | memset(reloc, 0, sizeof(reloc)); |
| 144 | |
| 145 | reloc[0].target_handle = obj[1].handle; /* recurse */ |
| 146 | reloc[0].presumed_offset = 0; |
| 147 | reloc[0].offset = sizeof(uint32_t); |
| 148 | reloc[0].delta = 0; |
| 149 | reloc[0].read_domains = I915_GEM_DOMAIN_COMMAND; |
| 150 | reloc[0].write_domain = 0; |
| 151 | |
| 152 | reloc[1].target_handle = target; |
| 153 | reloc[1].presumed_offset = 0; |
| 154 | reloc[1].offset = 1024; |
| 155 | reloc[1].delta = 0; |
| 156 | reloc[1].read_domains = I915_GEM_DOMAIN_COMMAND; |
| 157 | reloc[1].write_domain = 0; |
| 158 | |
| 159 | i = 0; |
| 160 | batch[i] = MI_BATCH_BUFFER_START; |
| 161 | if (gen >= 8) { |
| 162 | batch[i] |= 1 << 8 | 1; |
| 163 | batch[++i] = 0; |
| 164 | batch[++i] = 0; |
| 165 | } else if (gen >= 6) { |
| 166 | batch[i] |= 1 << 8; |
| 167 | batch[++i] = 0; |
| 168 | } else { |
| 169 | batch[i] |= 2 << 6; |
| 170 | batch[++i] = 0; |
| 171 | if (gen < 4) { |
| 172 | batch[i] |= 1; |
| 173 | reloc[0].delta = 1; |
| 174 | } |
| 175 | } |
| 176 | i++; |
| 177 | |
| 178 | if (ring != -1) { |
| 179 | execbuf.flags = ring; |
| 180 | for (int n = 0; n < BUSY_QLEN; n++) |
| 181 | gem_execbuf(fd, &execbuf); |
| 182 | } else { |
| 183 | for_each_engine(fd, ring) { |
| 184 | if (ring == 0) |
| 185 | continue; |
| 186 | |
| 187 | execbuf.flags = ring; |
| 188 | for (int n = 0; n < BUSY_QLEN; n++) |
| 189 | gem_execbuf(fd, &execbuf); |
| 190 | igt_assert(execbuf.flags == ring); |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | if (target) { |
| 195 | execbuf.flags = 0; |
| 196 | reloc[1].write_domain = I915_GEM_DOMAIN_COMMAND; |
| 197 | gem_execbuf(fd, &execbuf); |
| 198 | } |
| 199 | |
| 200 | gem_close(fd, obj[1].handle); |
| 201 | |
| 202 | return batch; |
| 203 | } |
| 204 | |
| 205 | static void finish_busy(uint32_t *busy) |
| 206 | { |
| 207 | *busy = MI_BATCH_BUFFER_END; |
| 208 | munmap(busy, 4096); |
| 209 | } |
| 210 | |
| 211 | struct cork { |
| 212 | int device; |
| 213 | uint32_t handle; |
| 214 | uint32_t fence; |
| 215 | }; |
| 216 | |
| 217 | static void plug(int fd, struct cork *c) |
| 218 | { |
| 219 | struct vgem_bo bo; |
| 220 | int dmabuf; |
| 221 | |
| 222 | c->device = drm_open_driver(DRIVER_VGEM); |
| 223 | |
| 224 | bo.width = bo.height = 1; |
| 225 | bo.bpp = 4; |
| 226 | vgem_create(c->device, &bo); |
| 227 | c->fence = vgem_fence_attach(c->device, &bo, VGEM_FENCE_WRITE); |
| 228 | |
| 229 | dmabuf = prime_handle_to_fd(c->device, bo.handle); |
| 230 | c->handle = prime_fd_to_handle(fd, dmabuf); |
| 231 | close(dmabuf); |
| 232 | } |
| 233 | |
| 234 | static void unplug(struct cork *c) |
| 235 | { |
| 236 | vgem_fence_signal(c->device, c->fence); |
| 237 | close(c->device); |
| 238 | } |
| 239 | |
| 240 | static void fifo(int fd, unsigned ring) |
| 241 | { |
| 242 | struct cork cork; |
| 243 | uint32_t *busy; |
| 244 | uint32_t scratch; |
| 245 | uint32_t *ptr; |
| 246 | |
| 247 | scratch = gem_create(fd, 4096); |
| 248 | |
| 249 | busy = make_busy(fd, scratch, ring); |
| 250 | plug(fd, &cork); |
| 251 | |
| 252 | /* Same priority, same timeline, final result will be the second eb */ |
| 253 | store_dword(fd, 0, ring, scratch, 0, 1, cork.handle, 0); |
| 254 | store_dword(fd, 0, ring, scratch, 0, 2, cork.handle, 0); |
| 255 | |
| 256 | unplug(&cork); /* only now submit our batches */ |
| 257 | igt_debugfs_dump(fd, "i915_engine_info"); |
| 258 | finish_busy(busy); |
| 259 | |
| 260 | ptr = gem_mmap__gtt(fd, scratch, 4096, PROT_READ); |
| 261 | gem_set_domain(fd, scratch, /* no write hazard lies! */ |
| 262 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 263 | gem_close(fd, scratch); |
| 264 | |
| 265 | igt_assert_eq_u32(ptr[0], 2); |
| 266 | munmap(ptr, 4096); |
| 267 | } |
| 268 | |
| 269 | static void reorder(int fd, unsigned ring, unsigned flags) |
| 270 | #define EQUAL 1 |
| 271 | { |
| 272 | struct cork cork; |
| 273 | uint32_t scratch; |
| 274 | uint32_t *busy; |
| 275 | uint32_t *ptr; |
| 276 | uint32_t ctx[2]; |
| 277 | |
| 278 | ctx[LO] = gem_context_create(fd); |
| 279 | ctx_set_priority(fd, ctx[LO], -MAX_PRIO); |
| 280 | |
| 281 | ctx[HI] = gem_context_create(fd); |
| 282 | ctx_set_priority(fd, ctx[HI], flags & EQUAL ? -MAX_PRIO : 0); |
| 283 | |
| 284 | scratch = gem_create(fd, 4096); |
| 285 | |
| 286 | busy = make_busy(fd, scratch, ring); |
| 287 | plug(fd, &cork); |
| 288 | |
| 289 | /* We expect the high priority context to be executed first, and |
| 290 | * so the final result will be value from the low priority context. |
| 291 | */ |
| 292 | store_dword(fd, ctx[LO], ring, scratch, 0, ctx[LO], cork.handle, 0); |
| 293 | store_dword(fd, ctx[HI], ring, scratch, 0, ctx[HI], cork.handle, 0); |
| 294 | |
| 295 | unplug(&cork); /* only now submit our batches */ |
| 296 | igt_debugfs_dump(fd, "i915_engine_info"); |
| 297 | finish_busy(busy); |
| 298 | |
| 299 | gem_context_destroy(fd, ctx[LO]); |
| 300 | gem_context_destroy(fd, ctx[HI]); |
| 301 | |
| 302 | ptr = gem_mmap__gtt(fd, scratch, 4096, PROT_READ); |
| 303 | gem_set_domain(fd, scratch, /* no write hazard lies! */ |
| 304 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 305 | gem_close(fd, scratch); |
| 306 | |
| 307 | if (flags & EQUAL) /* equal priority, result will be fifo */ |
| 308 | igt_assert_eq_u32(ptr[0], ctx[HI]); |
| 309 | else |
| 310 | igt_assert_eq_u32(ptr[0], ctx[LO]); |
| 311 | munmap(ptr, 4096); |
| 312 | } |
| 313 | |
| 314 | static void promotion(int fd, unsigned ring) |
| 315 | { |
| 316 | struct cork cork; |
| 317 | uint32_t result, dep; |
| 318 | uint32_t *busy; |
| 319 | uint32_t *ptr; |
| 320 | uint32_t ctx[3]; |
| 321 | |
| 322 | ctx[LO] = gem_context_create(fd); |
| 323 | ctx_set_priority(fd, ctx[LO], -MAX_PRIO); |
| 324 | |
| 325 | ctx[HI] = gem_context_create(fd); |
| 326 | ctx_set_priority(fd, ctx[HI], 0); |
| 327 | |
| 328 | ctx[NOISE] = gem_context_create(fd); |
| 329 | ctx_set_priority(fd, ctx[NOISE], -MAX_PRIO/2); |
| 330 | |
| 331 | result = gem_create(fd, 4096); |
| 332 | dep = gem_create(fd, 4096); |
| 333 | |
| 334 | busy = make_busy(fd, result, ring); |
| 335 | plug(fd, &cork); |
| 336 | |
| 337 | /* Expect that HI promotes LO, so the order will be LO, HI, NOISE. |
| 338 | * |
| 339 | * fifo would be NOISE, LO, HI. |
| 340 | * strict priority would be HI, NOISE, LO |
| 341 | */ |
| 342 | store_dword(fd, ctx[NOISE], ring, result, 0, ctx[NOISE], cork.handle, 0); |
| 343 | store_dword(fd, ctx[LO], ring, result, 0, ctx[LO], cork.handle, 0); |
| 344 | |
| 345 | /* link LO <-> HI via a dependency on another buffer */ |
| 346 | store_dword(fd, ctx[LO], ring, dep, 0, ctx[LO], 0, I915_GEM_DOMAIN_INSTRUCTION); |
| 347 | store_dword(fd, ctx[HI], ring, dep, 0, ctx[HI], 0, 0); |
| 348 | |
| 349 | store_dword(fd, ctx[HI], ring, result, 0, ctx[HI], 0, 0); |
| 350 | |
| 351 | unplug(&cork); /* only now submit our batches */ |
| 352 | igt_debugfs_dump(fd, "i915_engine_info"); |
| 353 | finish_busy(busy); |
| 354 | |
| 355 | gem_context_destroy(fd, ctx[NOISE]); |
| 356 | gem_context_destroy(fd, ctx[LO]); |
| 357 | gem_context_destroy(fd, ctx[HI]); |
| 358 | |
| 359 | ptr = gem_mmap__gtt(fd, dep, 4096, PROT_READ); |
| 360 | gem_set_domain(fd, dep, /* no write hazard lies! */ |
| 361 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 362 | gem_close(fd, dep); |
| 363 | |
| 364 | igt_assert_eq_u32(ptr[0], ctx[HI]); |
| 365 | munmap(ptr, 4096); |
| 366 | |
| 367 | ptr = gem_mmap__gtt(fd, result, 4096, PROT_READ); |
| 368 | gem_set_domain(fd, result, /* no write hazard lies! */ |
| 369 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 370 | gem_close(fd, result); |
| 371 | |
| 372 | igt_assert_eq_u32(ptr[0], ctx[NOISE]); |
| 373 | munmap(ptr, 4096); |
| 374 | } |
| 375 | |
| 376 | static void deep(int fd, unsigned ring) |
| 377 | { |
| 378 | #define XS 8 |
| 379 | struct cork cork; |
| 380 | uint32_t result, dep[XS]; |
| 381 | uint32_t *busy; |
| 382 | uint32_t *ptr; |
| 383 | uint32_t *ctx; |
| 384 | |
| 385 | ctx = malloc(sizeof(*ctx)*(MAX_PRIO + 1)); |
| 386 | for (int n = 0; n <= MAX_PRIO; n++) { |
| 387 | ctx[n] = gem_context_create(fd); |
| 388 | ctx_set_priority(fd, ctx[n], n); |
| 389 | } |
| 390 | |
| 391 | result = gem_create(fd, 4096); |
| 392 | for (int m = 0; m < XS; m ++) |
| 393 | dep[m] = gem_create(fd, 4096); |
| 394 | |
| 395 | busy = make_busy(fd, result, ring); |
| 396 | plug(fd, &cork); |
| 397 | |
| 398 | /* Create a deep dependency chain, with a few branches */ |
| 399 | for (int n = 0; n <= MAX_PRIO; n++) |
| 400 | for (int m = 0; m < XS; m++) |
| 401 | store_dword(fd, ctx[n], ring, dep[m], 4*n, ctx[n], cork.handle, I915_GEM_DOMAIN_INSTRUCTION); |
| 402 | |
| 403 | for (int n = 0; n <= MAX_PRIO; n++) { |
| 404 | for (int m = 0; m < XS; m++) { |
| 405 | store_dword(fd, ctx[n], ring, result, 4*n, ctx[n], dep[m], 0); |
| 406 | store_dword(fd, ctx[n], ring, result, 4*m, ctx[n], 0, I915_GEM_DOMAIN_INSTRUCTION); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | igt_assert(gem_bo_busy(fd, result)); |
| 411 | unplug(&cork); /* only now submit our batches */ |
| 412 | igt_debugfs_dump(fd, "i915_engine_info"); |
| 413 | finish_busy(busy); |
| 414 | |
| 415 | for (int n = 0; n <= MAX_PRIO; n++) |
| 416 | gem_context_destroy(fd, ctx[n]); |
| 417 | |
| 418 | for (int m = 0; m < XS; m++) { |
| 419 | ptr = gem_mmap__gtt(fd, dep[m], 4096, PROT_READ); |
| 420 | gem_set_domain(fd, dep[m], /* no write hazard lies! */ |
| 421 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 422 | gem_close(fd, dep[m]); |
| 423 | |
| 424 | for (int n = 0; n <= MAX_PRIO; n++) |
| 425 | igt_assert_eq_u32(ptr[n], ctx[n]); |
| 426 | munmap(ptr, 4096); |
| 427 | } |
| 428 | |
| 429 | ptr = gem_mmap__gtt(fd, result, 4096, PROT_READ); |
| 430 | gem_set_domain(fd, result, /* no write hazard lies! */ |
| 431 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 432 | gem_close(fd, result); |
| 433 | |
| 434 | for (int m = 0; m < XS; m++) |
| 435 | igt_assert_eq_u32(ptr[m], ctx[MAX_PRIO]); |
| 436 | munmap(ptr, 4096); |
| 437 | |
| 438 | free(ctx); |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 439 | #undef XS |
| 440 | } |
| 441 | |
Chris Wilson | a19ef05 | 2017-07-31 14:15:59 +0100 | [diff] [blame] | 442 | static void alarm_handler(int sig) |
| 443 | { |
| 444 | } |
| 445 | |
| 446 | static int __execbuf(int fd, struct drm_i915_gem_execbuffer2 *execbuf) |
| 447 | { |
| 448 | return ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, execbuf); |
| 449 | } |
| 450 | |
| 451 | static unsigned int measure_ring_size(int fd, unsigned int ring) |
| 452 | { |
| 453 | struct sigaction sa = { .sa_handler = alarm_handler }; |
| 454 | struct drm_i915_gem_exec_object2 obj[2]; |
| 455 | struct drm_i915_gem_execbuffer2 execbuf; |
| 456 | const uint32_t bbe = MI_BATCH_BUFFER_END; |
| 457 | unsigned int count, last; |
| 458 | struct itimerval itv; |
| 459 | struct cork c; |
| 460 | |
| 461 | memset(obj, 0, sizeof(obj)); |
| 462 | obj[1].handle = gem_create(fd, 4096); |
| 463 | gem_write(fd, obj[1].handle, 0, &bbe, sizeof(bbe)); |
| 464 | |
| 465 | memset(&execbuf, 0, sizeof(execbuf)); |
| 466 | execbuf.buffers_ptr = to_user_pointer(obj + 1); |
| 467 | execbuf.buffer_count = 1; |
| 468 | execbuf.flags = ring; |
| 469 | gem_execbuf(fd, &execbuf); |
| 470 | gem_sync(fd, obj[1].handle); |
| 471 | |
| 472 | plug(fd, &c); |
| 473 | obj[0].handle = c.handle; |
| 474 | |
| 475 | execbuf.buffers_ptr = to_user_pointer(obj); |
| 476 | execbuf.buffer_count = 2; |
| 477 | |
| 478 | sigaction(SIGALRM, &sa, NULL); |
| 479 | itv.it_interval.tv_sec = 0; |
| 480 | itv.it_interval.tv_usec = 100; |
| 481 | itv.it_value.tv_sec = 0; |
| 482 | itv.it_value.tv_usec = 1000; |
| 483 | setitimer(ITIMER_REAL, &itv, NULL); |
| 484 | |
| 485 | last = -1; |
| 486 | count = 0; |
| 487 | do { |
| 488 | if (__execbuf(fd, &execbuf) == 0) { |
| 489 | count++; |
| 490 | continue; |
| 491 | } |
| 492 | |
| 493 | if (last == count) |
| 494 | break; |
| 495 | |
| 496 | last = count; |
| 497 | } while (1); |
| 498 | |
| 499 | memset(&itv, 0, sizeof(itv)); |
| 500 | setitimer(ITIMER_REAL, &itv, NULL); |
| 501 | |
| 502 | unplug(&c); |
| 503 | gem_close(fd, obj[1].handle); |
| 504 | |
| 505 | return count; |
| 506 | } |
| 507 | |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 508 | static void wide(int fd, unsigned ring) |
| 509 | { |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 510 | #define NCTX 4096 |
Chris Wilson | a19ef05 | 2017-07-31 14:15:59 +0100 | [diff] [blame] | 511 | struct timespec tv = {}; |
| 512 | unsigned int ring_size = measure_ring_size(fd, ring); |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 513 | |
| 514 | struct cork cork; |
| 515 | uint32_t result; |
| 516 | uint32_t *busy; |
| 517 | uint32_t *ptr; |
| 518 | uint32_t *ctx; |
Chris Wilson | a19ef05 | 2017-07-31 14:15:59 +0100 | [diff] [blame] | 519 | unsigned int count; |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 520 | |
| 521 | ctx = malloc(sizeof(*ctx)*NCTX); |
| 522 | for (int n = 0; n < NCTX; n++) |
| 523 | ctx[n] = gem_context_create(fd); |
| 524 | |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 525 | result = gem_create(fd, 4*NCTX); |
| 526 | |
| 527 | busy = make_busy(fd, result, ring); |
| 528 | plug(fd, &cork); |
| 529 | |
| 530 | /* Lots of in-order requests, plugged and submitted simultaneously */ |
Chris Wilson | a19ef05 | 2017-07-31 14:15:59 +0100 | [diff] [blame] | 531 | for (count = 0; |
| 532 | igt_seconds_elapsed(&tv) < 5 && count < ring_size; |
| 533 | count++) { |
| 534 | for (int n = 0; n < NCTX; n++) { |
| 535 | store_dword(fd, ctx[n], ring, result, 4*n, ctx[n], cork.handle, I915_GEM_DOMAIN_INSTRUCTION); |
| 536 | } |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 537 | } |
Chris Wilson | a19ef05 | 2017-07-31 14:15:59 +0100 | [diff] [blame] | 538 | igt_info("Submitted %d requests over %d contexts in %.1fms\n", |
| 539 | count, NCTX, igt_nsec_elapsed(&tv) * 1e-6); |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 540 | |
| 541 | igt_assert(gem_bo_busy(fd, result)); |
| 542 | unplug(&cork); /* only now submit our batches */ |
| 543 | igt_debugfs_dump(fd, "i915_engine_info"); |
| 544 | finish_busy(busy); |
| 545 | |
| 546 | for (int n = 0; n < NCTX; n++) |
| 547 | gem_context_destroy(fd, ctx[n]); |
| 548 | |
| 549 | ptr = gem_mmap__gtt(fd, result, 4*NCTX, PROT_READ); |
| 550 | gem_set_domain(fd, result, /* no write hazard lies! */ |
| 551 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 552 | for (int n = 0; n < NCTX; n++) |
| 553 | igt_assert_eq_u32(ptr[n], ctx[n]); |
Chris Wilson | 61f8de7 | 2017-07-20 10:08:28 +0100 | [diff] [blame^] | 554 | munmap(ptr, 4*NCTX); |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 555 | |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 556 | gem_close(fd, result); |
| 557 | free(ctx); |
Chris Wilson | 61f8de7 | 2017-07-20 10:08:28 +0100 | [diff] [blame^] | 558 | #undef NCTX |
| 559 | } |
| 560 | |
| 561 | static void reorder_wide(int fd, unsigned ring) |
| 562 | { |
| 563 | const int gen = intel_gen(intel_get_drm_devid(fd)); |
| 564 | struct drm_i915_gem_relocation_entry reloc; |
| 565 | struct drm_i915_gem_exec_object2 obj[3]; |
| 566 | struct drm_i915_gem_execbuffer2 execbuf; |
| 567 | struct cork cork; |
| 568 | uint32_t result, target; |
| 569 | uint32_t *busy; |
| 570 | uint32_t *r, *t; |
| 571 | |
| 572 | result = gem_create(fd, 4096); |
| 573 | target = gem_create(fd, 4096); |
| 574 | |
| 575 | busy = make_busy(fd, result, ring); |
| 576 | plug(fd, &cork); |
| 577 | |
| 578 | t = gem_mmap__cpu(fd, target, 0, 4096, PROT_WRITE); |
| 579 | gem_set_domain(fd, target, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU); |
| 580 | |
| 581 | memset(obj, 0, sizeof(obj)); |
| 582 | obj[0].handle = cork.handle; |
| 583 | obj[1].handle = result; |
| 584 | obj[2].relocs_ptr = to_user_pointer(&reloc); |
| 585 | obj[2].relocation_count = 1; |
| 586 | |
| 587 | memset(&reloc, 0, sizeof(reloc)); |
| 588 | reloc.target_handle = result; |
| 589 | reloc.read_domains = I915_GEM_DOMAIN_INSTRUCTION; |
| 590 | reloc.write_domain = 0; /* lies */ |
| 591 | |
| 592 | memset(&execbuf, 0, sizeof(execbuf)); |
| 593 | execbuf.buffers_ptr = to_user_pointer(obj); |
| 594 | execbuf.buffer_count = 3; |
| 595 | execbuf.flags = ring; |
| 596 | if (gen < 6) |
| 597 | execbuf.flags |= I915_EXEC_SECURE; |
| 598 | |
| 599 | for (int n = -MAX_PRIO, x = 1; n <= MAX_PRIO; n++, x++) { |
| 600 | uint32_t *batch; |
| 601 | |
| 602 | execbuf.rsvd1 = gem_context_create(fd); |
| 603 | ctx_set_priority(fd, execbuf.rsvd1, n); |
| 604 | |
| 605 | obj[2].handle = gem_create(fd, 128 * 64); |
| 606 | batch = gem_mmap__gtt(fd, obj[2].handle, 128 * 64, PROT_WRITE); |
| 607 | gem_set_domain(fd, obj[2].handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 608 | |
| 609 | for (int m = 0; m < 128; m++) { |
| 610 | uint64_t addr; |
| 611 | int idx = hars_petruska_f54_1_random_unsafe_max( 1024); |
| 612 | int i; |
| 613 | |
| 614 | execbuf.batch_start_offset = m * 64; |
| 615 | reloc.offset = execbuf.batch_start_offset + sizeof(uint32_t); |
| 616 | reloc.delta = idx * sizeof(uint32_t); |
| 617 | addr = reloc.presumed_offset + reloc.delta; |
| 618 | |
| 619 | i = execbuf.batch_start_offset / sizeof(uint32_t); |
| 620 | batch[i] = MI_STORE_DWORD_IMM | (gen < 6 ? 1 << 22 : 0); |
| 621 | if (gen >= 8) { |
| 622 | batch[++i] = addr; |
| 623 | batch[++i] = addr >> 32; |
| 624 | } else if (gen >= 4) { |
| 625 | batch[++i] = 0; |
| 626 | batch[++i] = addr; |
| 627 | reloc.offset += sizeof(uint32_t); |
| 628 | } else { |
| 629 | batch[i]--; |
| 630 | batch[++i] = addr; |
| 631 | } |
| 632 | batch[++i] = x; |
| 633 | batch[++i] = MI_BATCH_BUFFER_END; |
| 634 | |
| 635 | if (!t[idx]) |
| 636 | t[idx] = x; |
| 637 | |
| 638 | gem_execbuf(fd, &execbuf); |
| 639 | } |
| 640 | |
| 641 | munmap(batch, 128 * 64); |
| 642 | gem_close(fd, obj[2].handle); |
| 643 | gem_context_destroy(fd, execbuf.rsvd1); |
| 644 | } |
| 645 | |
| 646 | igt_assert(gem_bo_busy(fd, result)); |
| 647 | unplug(&cork); /* only now submit our batches */ |
| 648 | igt_debugfs_dump(fd, "i915_engine_info"); |
| 649 | finish_busy(busy); |
| 650 | |
| 651 | r = gem_mmap__gtt(fd, result, 4096, PROT_READ); |
| 652 | gem_set_domain(fd, result, /* no write hazard lies! */ |
| 653 | I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); |
| 654 | for (int n = 0; n < 1024; n++) |
| 655 | igt_assert_eq_u32(r[n], t[n]); |
| 656 | munmap(r, 4096); |
| 657 | munmap(t, 4096); |
| 658 | |
| 659 | gem_close(fd, result); |
| 660 | gem_close(fd, target); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 661 | } |
| 662 | |
| 663 | static bool has_scheduler(int fd) |
| 664 | { |
| 665 | drm_i915_getparam_t gp; |
| 666 | int has = -1; |
| 667 | |
| 668 | gp.param = LOCAL_PARAM_HAS_SCHEDULER; |
| 669 | gp.value = &has; |
| 670 | drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp); |
| 671 | |
| 672 | return has > 0; |
| 673 | } |
| 674 | |
| 675 | igt_main |
| 676 | { |
| 677 | const struct intel_execution_engine *e; |
| 678 | int fd = -1; |
| 679 | |
| 680 | igt_skip_on_simulation(); |
| 681 | |
| 682 | igt_fixture { |
| 683 | fd = drm_open_driver_master(DRIVER_INTEL); |
Chris Wilson | 9518cb5 | 2017-02-22 15:24:54 +0000 | [diff] [blame] | 684 | igt_require_gem(fd); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 685 | gem_require_mmap_wc(fd); |
| 686 | igt_fork_hang_detector(fd); |
| 687 | } |
| 688 | |
| 689 | igt_subtest_group { |
| 690 | for (e = intel_execution_engines; e->name; e++) { |
| 691 | /* default exec-id is purely symbolic */ |
| 692 | if (e->exec_id == 0) |
| 693 | continue; |
| 694 | |
| 695 | igt_subtest_f("fifo-%s", e->name) { |
| 696 | gem_require_ring(fd, e->exec_id | e->flags); |
Chris Wilson | bc78776 | 2017-05-18 12:11:59 +0100 | [diff] [blame] | 697 | igt_require(gem_can_store_dword(fd, e->exec_id) | e->flags); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 698 | fifo(fd, e->exec_id | e->flags); |
| 699 | } |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | igt_subtest_group { |
| 704 | igt_fixture { |
| 705 | igt_require(has_scheduler(fd)); |
Chris Wilson | af0e1c5 | 2017-02-21 18:25:58 +0000 | [diff] [blame] | 706 | ctx_has_priority(fd); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 707 | } |
| 708 | |
| 709 | for (e = intel_execution_engines; e->name; e++) { |
| 710 | /* default exec-id is purely symbolic */ |
| 711 | if (e->exec_id == 0) |
| 712 | continue; |
| 713 | |
| 714 | igt_subtest_group { |
Chris Wilson | 073cfd7 | 2017-03-17 11:52:51 +0000 | [diff] [blame] | 715 | igt_fixture { |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 716 | gem_require_ring(fd, e->exec_id | e->flags); |
Chris Wilson | bc78776 | 2017-05-18 12:11:59 +0100 | [diff] [blame] | 717 | igt_require(gem_can_store_dword(fd, e->exec_id) | e->flags); |
Chris Wilson | 073cfd7 | 2017-03-17 11:52:51 +0000 | [diff] [blame] | 718 | } |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 719 | |
| 720 | igt_subtest_f("in-order-%s", e->name) |
| 721 | reorder(fd, e->exec_id | e->flags, EQUAL); |
| 722 | |
| 723 | igt_subtest_f("out-order-%s", e->name) |
| 724 | reorder(fd, e->exec_id | e->flags, 0); |
| 725 | |
| 726 | igt_subtest_f("promotion-%s", e->name) |
| 727 | promotion(fd, e->exec_id | e->flags); |
| 728 | |
| 729 | igt_subtest_f("deep-%s", e->name) |
| 730 | deep(fd, e->exec_id | e->flags); |
Chris Wilson | f692075 | 2017-04-24 13:20:04 +0100 | [diff] [blame] | 731 | |
| 732 | igt_subtest_f("wide-%s", e->name) |
| 733 | wide(fd, e->exec_id | e->flags); |
Chris Wilson | 61f8de7 | 2017-07-20 10:08:28 +0100 | [diff] [blame^] | 734 | |
| 735 | igt_subtest_f("reorder-wide-%s", e->name) |
| 736 | reorder_wide(fd, e->exec_id | e->flags); |
Chris Wilson | 721d874 | 2016-10-27 11:32:47 +0100 | [diff] [blame] | 737 | } |
| 738 | } |
| 739 | } |
| 740 | |
| 741 | igt_fixture { |
| 742 | igt_stop_hang_detector(); |
| 743 | close(fd); |
| 744 | } |
| 745 | } |