1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright © 2022 Intel Corporation 4 */ 5 6 #include "xe_query.h" 7 8 #include <linux/nospec.h> 9 #include <linux/sched/clock.h> 10 11 #include <drm/ttm/ttm_placement.h> 12 #include <generated/xe_wa_oob.h> 13 #include <uapi/drm/xe_drm.h> 14 15 #include "regs/xe_engine_regs.h" 16 #include "regs/xe_gt_regs.h" 17 #include "xe_bo.h" 18 #include "xe_device.h" 19 #include "xe_eu_stall.h" 20 #include "xe_exec_queue.h" 21 #include "xe_force_wake.h" 22 #include "xe_ggtt.h" 23 #include "xe_gt.h" 24 #include "xe_guc_hwconfig.h" 25 #include "xe_macros.h" 26 #include "xe_mmio.h" 27 #include "xe_oa.h" 28 #include "xe_pxp.h" 29 #include "xe_ttm_vram_mgr.h" 30 #include "xe_wa.h" 31 32 static const u16 xe_to_user_engine_class[] = { 33 [XE_ENGINE_CLASS_RENDER] = DRM_XE_ENGINE_CLASS_RENDER, 34 [XE_ENGINE_CLASS_COPY] = DRM_XE_ENGINE_CLASS_COPY, 35 [XE_ENGINE_CLASS_VIDEO_DECODE] = DRM_XE_ENGINE_CLASS_VIDEO_DECODE, 36 [XE_ENGINE_CLASS_VIDEO_ENHANCE] = DRM_XE_ENGINE_CLASS_VIDEO_ENHANCE, 37 [XE_ENGINE_CLASS_COMPUTE] = DRM_XE_ENGINE_CLASS_COMPUTE, 38 }; 39 40 static const enum xe_engine_class user_to_xe_engine_class[] = { 41 [DRM_XE_ENGINE_CLASS_RENDER] = XE_ENGINE_CLASS_RENDER, 42 [DRM_XE_ENGINE_CLASS_COPY] = XE_ENGINE_CLASS_COPY, 43 [DRM_XE_ENGINE_CLASS_VIDEO_DECODE] = XE_ENGINE_CLASS_VIDEO_DECODE, 44 [DRM_XE_ENGINE_CLASS_VIDEO_ENHANCE] = XE_ENGINE_CLASS_VIDEO_ENHANCE, 45 [DRM_XE_ENGINE_CLASS_COMPUTE] = XE_ENGINE_CLASS_COMPUTE, 46 }; 47 48 static size_t calc_hw_engine_info_size(struct xe_device *xe) 49 { 50 struct xe_hw_engine *hwe; 51 enum xe_hw_engine_id id; 52 struct xe_gt *gt; 53 u8 gt_id; 54 int i = 0; 55 56 for_each_gt(gt, xe, gt_id) 57 for_each_hw_engine(hwe, gt, id) { 58 if (xe_hw_engine_is_reserved(hwe)) 59 continue; 60 i++; 61 } 62 63 return sizeof(struct drm_xe_query_engines) + 64 i * sizeof(struct drm_xe_engine); 65 } 66 67 typedef u64 (*__ktime_func_t)(void); 68 static __ktime_func_t __clock_id_to_func(clockid_t clk_id) 69 { 70 /* 71 * Use logic same as the perf subsystem to allow user to select the 72 * reference clock id to be used for timestamps. 73 */ 74 switch (clk_id) { 75 case CLOCK_MONOTONIC: 76 return &ktime_get_ns; 77 case CLOCK_MONOTONIC_RAW: 78 return &ktime_get_raw_ns; 79 case CLOCK_REALTIME: 80 return &ktime_get_real_ns; 81 case CLOCK_BOOTTIME: 82 return &ktime_get_boottime_ns; 83 case CLOCK_TAI: 84 return &ktime_get_clocktai_ns; 85 default: 86 return NULL; 87 } 88 } 89 90 static void 91 hwe_read_timestamp(struct xe_hw_engine *hwe, u64 *engine_ts, u64 *cpu_ts, 92 u64 *cpu_delta, __ktime_func_t cpu_clock) 93 { 94 struct xe_mmio *mmio = &hwe->gt->mmio; 95 u32 upper, lower, old_upper, loop = 0; 96 struct xe_reg upper_reg = RING_TIMESTAMP_UDW(hwe->mmio_base), 97 lower_reg = RING_TIMESTAMP(hwe->mmio_base); 98 99 upper = xe_mmio_read32(mmio, upper_reg); 100 do { 101 *cpu_delta = local_clock(); 102 *cpu_ts = cpu_clock(); 103 lower = xe_mmio_read32(mmio, lower_reg); 104 *cpu_delta = local_clock() - *cpu_delta; 105 old_upper = upper; 106 upper = xe_mmio_read32(mmio, upper_reg); 107 } while (upper != old_upper && loop++ < 2); 108 109 *engine_ts = (u64)upper << 32 | lower; 110 } 111 112 static int 113 query_engine_cycles(struct xe_device *xe, 114 struct drm_xe_device_query *query) 115 { 116 struct drm_xe_query_engine_cycles __user *query_ptr; 117 struct drm_xe_engine_class_instance *eci; 118 struct drm_xe_query_engine_cycles resp; 119 size_t size = sizeof(resp); 120 __ktime_func_t cpu_clock; 121 struct xe_hw_engine *hwe; 122 struct xe_gt *gt; 123 unsigned int fw_ref; 124 125 if (IS_SRIOV_VF(xe)) 126 return -EOPNOTSUPP; 127 128 if (query->size == 0) { 129 query->size = size; 130 return 0; 131 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 132 return -EINVAL; 133 } 134 135 query_ptr = u64_to_user_ptr(query->data); 136 if (copy_from_user(&resp, query_ptr, size)) 137 return -EFAULT; 138 139 cpu_clock = __clock_id_to_func(resp.clockid); 140 if (!cpu_clock) 141 return -EINVAL; 142 143 eci = &resp.eci; 144 if (eci->gt_id >= XE_MAX_GT_PER_TILE) 145 return -EINVAL; 146 147 gt = xe_device_get_gt(xe, eci->gt_id); 148 if (!gt) 149 return -EINVAL; 150 151 if (eci->engine_class >= ARRAY_SIZE(user_to_xe_engine_class)) 152 return -EINVAL; 153 154 hwe = xe_gt_hw_engine(gt, user_to_xe_engine_class[eci->engine_class], 155 eci->engine_instance, true); 156 if (!hwe) 157 return -EINVAL; 158 159 fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL); 160 if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) { 161 xe_force_wake_put(gt_to_fw(gt), fw_ref); 162 return -EIO; 163 } 164 165 hwe_read_timestamp(hwe, &resp.engine_cycles, &resp.cpu_timestamp, 166 &resp.cpu_delta, cpu_clock); 167 168 xe_force_wake_put(gt_to_fw(gt), fw_ref); 169 170 if (GRAPHICS_VER(xe) >= 20) 171 resp.width = 64; 172 else 173 resp.width = 36; 174 175 /* Only write to the output fields of user query */ 176 if (put_user(resp.cpu_timestamp, &query_ptr->cpu_timestamp) || 177 put_user(resp.cpu_delta, &query_ptr->cpu_delta) || 178 put_user(resp.engine_cycles, &query_ptr->engine_cycles) || 179 put_user(resp.width, &query_ptr->width)) 180 return -EFAULT; 181 182 return 0; 183 } 184 185 static int query_engines(struct xe_device *xe, 186 struct drm_xe_device_query *query) 187 { 188 size_t size = calc_hw_engine_info_size(xe); 189 struct drm_xe_query_engines __user *query_ptr = 190 u64_to_user_ptr(query->data); 191 struct drm_xe_query_engines *engines; 192 struct xe_hw_engine *hwe; 193 enum xe_hw_engine_id id; 194 struct xe_gt *gt; 195 u8 gt_id; 196 int i = 0; 197 198 if (query->size == 0) { 199 query->size = size; 200 return 0; 201 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 202 return -EINVAL; 203 } 204 205 engines = kzalloc(size, GFP_KERNEL); 206 if (!engines) 207 return -ENOMEM; 208 209 for_each_gt(gt, xe, gt_id) 210 for_each_hw_engine(hwe, gt, id) { 211 if (xe_hw_engine_is_reserved(hwe)) 212 continue; 213 214 engines->engines[i].instance.engine_class = 215 xe_to_user_engine_class[hwe->class]; 216 engines->engines[i].instance.engine_instance = 217 hwe->logical_instance; 218 engines->engines[i].instance.gt_id = gt->info.id; 219 220 i++; 221 } 222 223 engines->num_engines = i; 224 225 if (copy_to_user(query_ptr, engines, size)) { 226 kfree(engines); 227 return -EFAULT; 228 } 229 kfree(engines); 230 231 return 0; 232 } 233 234 static size_t calc_mem_regions_size(struct xe_device *xe) 235 { 236 u32 num_managers = 1; 237 int i; 238 239 for (i = XE_PL_VRAM0; i <= XE_PL_VRAM1; ++i) 240 if (ttm_manager_type(&xe->ttm, i)) 241 num_managers++; 242 243 return offsetof(struct drm_xe_query_mem_regions, mem_regions[num_managers]); 244 } 245 246 static int query_mem_regions(struct xe_device *xe, 247 struct drm_xe_device_query *query) 248 { 249 size_t size = calc_mem_regions_size(xe); 250 struct drm_xe_query_mem_regions *mem_regions; 251 struct drm_xe_query_mem_regions __user *query_ptr = 252 u64_to_user_ptr(query->data); 253 struct ttm_resource_manager *man; 254 int ret, i; 255 256 if (query->size == 0) { 257 query->size = size; 258 return 0; 259 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 260 return -EINVAL; 261 } 262 263 mem_regions = kzalloc(size, GFP_KERNEL); 264 if (XE_IOCTL_DBG(xe, !mem_regions)) 265 return -ENOMEM; 266 267 man = ttm_manager_type(&xe->ttm, XE_PL_TT); 268 mem_regions->mem_regions[0].mem_class = DRM_XE_MEM_REGION_CLASS_SYSMEM; 269 /* 270 * The instance needs to be a unique number that represents the index 271 * in the placement mask used at xe_gem_create_ioctl() for the 272 * xe_bo_create() placement. 273 */ 274 mem_regions->mem_regions[0].instance = 0; 275 mem_regions->mem_regions[0].min_page_size = PAGE_SIZE; 276 mem_regions->mem_regions[0].total_size = man->size << PAGE_SHIFT; 277 if (perfmon_capable()) 278 mem_regions->mem_regions[0].used = ttm_resource_manager_usage(man); 279 mem_regions->num_mem_regions = 1; 280 281 for (i = XE_PL_VRAM0; i <= XE_PL_VRAM1; ++i) { 282 man = ttm_manager_type(&xe->ttm, i); 283 if (man) { 284 mem_regions->mem_regions[mem_regions->num_mem_regions].mem_class = 285 DRM_XE_MEM_REGION_CLASS_VRAM; 286 mem_regions->mem_regions[mem_regions->num_mem_regions].instance = 287 mem_regions->num_mem_regions; 288 mem_regions->mem_regions[mem_regions->num_mem_regions].min_page_size = 289 xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K ? 290 SZ_64K : PAGE_SIZE; 291 mem_regions->mem_regions[mem_regions->num_mem_regions].total_size = 292 man->size; 293 294 if (perfmon_capable()) { 295 xe_ttm_vram_get_used(man, 296 &mem_regions->mem_regions 297 [mem_regions->num_mem_regions].used, 298 &mem_regions->mem_regions 299 [mem_regions->num_mem_regions].cpu_visible_used); 300 } 301 302 mem_regions->mem_regions[mem_regions->num_mem_regions].cpu_visible_size = 303 xe_ttm_vram_get_cpu_visible_size(man); 304 mem_regions->num_mem_regions++; 305 } 306 } 307 308 if (!copy_to_user(query_ptr, mem_regions, size)) 309 ret = 0; 310 else 311 ret = -ENOSPC; 312 313 kfree(mem_regions); 314 return ret; 315 } 316 317 static int query_config(struct xe_device *xe, struct drm_xe_device_query *query) 318 { 319 const u32 num_params = DRM_XE_QUERY_CONFIG_MAX_EXEC_QUEUE_PRIORITY + 1; 320 size_t size = 321 sizeof(struct drm_xe_query_config) + num_params * sizeof(u64); 322 struct drm_xe_query_config __user *query_ptr = 323 u64_to_user_ptr(query->data); 324 struct drm_xe_query_config *config; 325 326 if (query->size == 0) { 327 query->size = size; 328 return 0; 329 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 330 return -EINVAL; 331 } 332 333 config = kzalloc(size, GFP_KERNEL); 334 if (!config) 335 return -ENOMEM; 336 337 config->num_params = num_params; 338 config->info[DRM_XE_QUERY_CONFIG_REV_AND_DEVICE_ID] = 339 xe->info.devid | (xe->info.revid << 16); 340 if (xe_device_get_root_tile(xe)->mem.vram.usable_size) 341 config->info[DRM_XE_QUERY_CONFIG_FLAGS] |= 342 DRM_XE_QUERY_CONFIG_FLAG_HAS_VRAM; 343 if (xe->info.has_usm && IS_ENABLED(CONFIG_DRM_GPUSVM)) 344 config->info[DRM_XE_QUERY_CONFIG_FLAGS] |= 345 DRM_XE_QUERY_CONFIG_FLAG_HAS_CPU_ADDR_MIRROR; 346 config->info[DRM_XE_QUERY_CONFIG_FLAGS] |= 347 DRM_XE_QUERY_CONFIG_FLAG_HAS_LOW_LATENCY; 348 config->info[DRM_XE_QUERY_CONFIG_MIN_ALIGNMENT] = 349 xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K ? SZ_64K : SZ_4K; 350 config->info[DRM_XE_QUERY_CONFIG_VA_BITS] = xe->info.va_bits; 351 config->info[DRM_XE_QUERY_CONFIG_MAX_EXEC_QUEUE_PRIORITY] = 352 xe_exec_queue_device_get_max_priority(xe); 353 354 if (copy_to_user(query_ptr, config, size)) { 355 kfree(config); 356 return -EFAULT; 357 } 358 kfree(config); 359 360 return 0; 361 } 362 363 static int query_gt_list(struct xe_device *xe, struct drm_xe_device_query *query) 364 { 365 struct xe_gt *gt; 366 size_t size = sizeof(struct drm_xe_query_gt_list) + 367 xe->info.gt_count * sizeof(struct drm_xe_gt); 368 struct drm_xe_query_gt_list __user *query_ptr = 369 u64_to_user_ptr(query->data); 370 struct drm_xe_query_gt_list *gt_list; 371 u8 id; 372 373 if (query->size == 0) { 374 query->size = size; 375 return 0; 376 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 377 return -EINVAL; 378 } 379 380 gt_list = kzalloc(size, GFP_KERNEL); 381 if (!gt_list) 382 return -ENOMEM; 383 384 gt_list->num_gt = xe->info.gt_count; 385 386 for_each_gt(gt, xe, id) { 387 if (xe_gt_is_media_type(gt)) 388 gt_list->gt_list[id].type = DRM_XE_QUERY_GT_TYPE_MEDIA; 389 else 390 gt_list->gt_list[id].type = DRM_XE_QUERY_GT_TYPE_MAIN; 391 gt_list->gt_list[id].tile_id = gt_to_tile(gt)->id; 392 gt_list->gt_list[id].gt_id = gt->info.id; 393 gt_list->gt_list[id].reference_clock = gt->info.reference_clock; 394 /* 395 * The mem_regions indexes in the mask below need to 396 * directly identify the struct 397 * drm_xe_query_mem_regions' instance constructed at 398 * query_mem_regions() 399 * 400 * For our current platforms: 401 * Bit 0 -> System Memory 402 * Bit 1 -> VRAM0 on Tile0 403 * Bit 2 -> VRAM1 on Tile1 404 * However the uAPI is generic and it's userspace's 405 * responsibility to check the mem_class, without any 406 * assumption. 407 */ 408 if (!IS_DGFX(xe)) 409 gt_list->gt_list[id].near_mem_regions = 0x1; 410 else 411 gt_list->gt_list[id].near_mem_regions = 412 BIT(gt_to_tile(gt)->id) << 1; 413 gt_list->gt_list[id].far_mem_regions = xe->info.mem_region_mask ^ 414 gt_list->gt_list[id].near_mem_regions; 415 416 gt_list->gt_list[id].ip_ver_major = 417 REG_FIELD_GET(GMD_ID_ARCH_MASK, gt->info.gmdid); 418 gt_list->gt_list[id].ip_ver_minor = 419 REG_FIELD_GET(GMD_ID_RELEASE_MASK, gt->info.gmdid); 420 gt_list->gt_list[id].ip_ver_rev = 421 REG_FIELD_GET(GMD_ID_REVID, gt->info.gmdid); 422 } 423 424 if (copy_to_user(query_ptr, gt_list, size)) { 425 kfree(gt_list); 426 return -EFAULT; 427 } 428 kfree(gt_list); 429 430 return 0; 431 } 432 433 static int query_hwconfig(struct xe_device *xe, 434 struct drm_xe_device_query *query) 435 { 436 struct xe_gt *gt = xe_root_mmio_gt(xe); 437 size_t size = xe_guc_hwconfig_size(>->uc.guc); 438 void __user *query_ptr = u64_to_user_ptr(query->data); 439 void *hwconfig; 440 441 if (query->size == 0) { 442 query->size = size; 443 return 0; 444 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 445 return -EINVAL; 446 } 447 448 hwconfig = kzalloc(size, GFP_KERNEL); 449 if (!hwconfig) 450 return -ENOMEM; 451 452 xe_guc_hwconfig_copy(>->uc.guc, hwconfig); 453 454 if (copy_to_user(query_ptr, hwconfig, size)) { 455 kfree(hwconfig); 456 return -EFAULT; 457 } 458 kfree(hwconfig); 459 460 return 0; 461 } 462 463 static size_t calc_topo_query_size(struct xe_device *xe) 464 { 465 struct xe_gt *gt; 466 size_t query_size = 0; 467 int id; 468 469 for_each_gt(gt, xe, id) { 470 query_size += 3 * sizeof(struct drm_xe_query_topology_mask) + 471 sizeof_field(struct xe_gt, fuse_topo.g_dss_mask) + 472 sizeof_field(struct xe_gt, fuse_topo.c_dss_mask) + 473 sizeof_field(struct xe_gt, fuse_topo.eu_mask_per_dss); 474 475 /* L3bank mask may not be available for some GTs */ 476 if (!XE_WA(gt, no_media_l3)) 477 query_size += sizeof(struct drm_xe_query_topology_mask) + 478 sizeof_field(struct xe_gt, fuse_topo.l3_bank_mask); 479 } 480 481 return query_size; 482 } 483 484 static int copy_mask(void __user **ptr, 485 struct drm_xe_query_topology_mask *topo, 486 void *mask, size_t mask_size) 487 { 488 topo->num_bytes = mask_size; 489 490 if (copy_to_user(*ptr, topo, sizeof(*topo))) 491 return -EFAULT; 492 *ptr += sizeof(topo); 493 494 if (copy_to_user(*ptr, mask, mask_size)) 495 return -EFAULT; 496 *ptr += mask_size; 497 498 return 0; 499 } 500 501 static int query_gt_topology(struct xe_device *xe, 502 struct drm_xe_device_query *query) 503 { 504 void __user *query_ptr = u64_to_user_ptr(query->data); 505 size_t size = calc_topo_query_size(xe); 506 struct drm_xe_query_topology_mask topo; 507 struct xe_gt *gt; 508 int id; 509 510 if (query->size == 0) { 511 query->size = size; 512 return 0; 513 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 514 return -EINVAL; 515 } 516 517 for_each_gt(gt, xe, id) { 518 int err; 519 520 topo.gt_id = id; 521 522 topo.type = DRM_XE_TOPO_DSS_GEOMETRY; 523 err = copy_mask(&query_ptr, &topo, gt->fuse_topo.g_dss_mask, 524 sizeof(gt->fuse_topo.g_dss_mask)); 525 if (err) 526 return err; 527 528 topo.type = DRM_XE_TOPO_DSS_COMPUTE; 529 err = copy_mask(&query_ptr, &topo, gt->fuse_topo.c_dss_mask, 530 sizeof(gt->fuse_topo.c_dss_mask)); 531 if (err) 532 return err; 533 534 /* 535 * If the kernel doesn't have a way to obtain a correct L3bank 536 * mask, then it's better to omit L3 from the query rather than 537 * reporting bogus or zeroed information to userspace. 538 */ 539 if (!XE_WA(gt, no_media_l3)) { 540 topo.type = DRM_XE_TOPO_L3_BANK; 541 err = copy_mask(&query_ptr, &topo, gt->fuse_topo.l3_bank_mask, 542 sizeof(gt->fuse_topo.l3_bank_mask)); 543 if (err) 544 return err; 545 } 546 547 topo.type = gt->fuse_topo.eu_type == XE_GT_EU_TYPE_SIMD16 ? 548 DRM_XE_TOPO_SIMD16_EU_PER_DSS : 549 DRM_XE_TOPO_EU_PER_DSS; 550 err = copy_mask(&query_ptr, &topo, 551 gt->fuse_topo.eu_mask_per_dss, 552 sizeof(gt->fuse_topo.eu_mask_per_dss)); 553 if (err) 554 return err; 555 } 556 557 return 0; 558 } 559 560 static int 561 query_uc_fw_version(struct xe_device *xe, struct drm_xe_device_query *query) 562 { 563 struct drm_xe_query_uc_fw_version __user *query_ptr = u64_to_user_ptr(query->data); 564 size_t size = sizeof(struct drm_xe_query_uc_fw_version); 565 struct drm_xe_query_uc_fw_version resp; 566 struct xe_uc_fw_version *version = NULL; 567 568 if (query->size == 0) { 569 query->size = size; 570 return 0; 571 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 572 return -EINVAL; 573 } 574 575 if (copy_from_user(&resp, query_ptr, size)) 576 return -EFAULT; 577 578 if (XE_IOCTL_DBG(xe, resp.pad || resp.pad2 || resp.reserved)) 579 return -EINVAL; 580 581 switch (resp.uc_type) { 582 case XE_QUERY_UC_TYPE_GUC_SUBMISSION: { 583 struct xe_guc *guc = &xe->tiles[0].primary_gt->uc.guc; 584 585 version = &guc->fw.versions.found[XE_UC_FW_VER_COMPATIBILITY]; 586 break; 587 } 588 case XE_QUERY_UC_TYPE_HUC: { 589 struct xe_gt *media_gt = NULL; 590 struct xe_huc *huc; 591 592 if (MEDIA_VER(xe) >= 13) { 593 struct xe_tile *tile; 594 u8 gt_id; 595 596 for_each_tile(tile, xe, gt_id) { 597 if (tile->media_gt) { 598 media_gt = tile->media_gt; 599 break; 600 } 601 } 602 } else { 603 media_gt = xe->tiles[0].primary_gt; 604 } 605 606 if (!media_gt) 607 break; 608 609 huc = &media_gt->uc.huc; 610 if (huc->fw.status == XE_UC_FIRMWARE_RUNNING) 611 version = &huc->fw.versions.found[XE_UC_FW_VER_RELEASE]; 612 break; 613 } 614 default: 615 return -EINVAL; 616 } 617 618 if (version) { 619 resp.branch_ver = 0; 620 resp.major_ver = version->major; 621 resp.minor_ver = version->minor; 622 resp.patch_ver = version->patch; 623 } else { 624 return -ENODEV; 625 } 626 627 if (copy_to_user(query_ptr, &resp, size)) 628 return -EFAULT; 629 630 return 0; 631 } 632 633 static size_t calc_oa_unit_query_size(struct xe_device *xe) 634 { 635 size_t size = sizeof(struct drm_xe_query_oa_units); 636 struct xe_gt *gt; 637 int i, id; 638 639 for_each_gt(gt, xe, id) { 640 for (i = 0; i < gt->oa.num_oa_units; i++) { 641 size += sizeof(struct drm_xe_oa_unit); 642 size += gt->oa.oa_unit[i].num_engines * 643 sizeof(struct drm_xe_engine_class_instance); 644 } 645 } 646 647 return size; 648 } 649 650 static int query_oa_units(struct xe_device *xe, 651 struct drm_xe_device_query *query) 652 { 653 void __user *query_ptr = u64_to_user_ptr(query->data); 654 size_t size = calc_oa_unit_query_size(xe); 655 struct drm_xe_query_oa_units *qoa; 656 enum xe_hw_engine_id hwe_id; 657 struct drm_xe_oa_unit *du; 658 struct xe_hw_engine *hwe; 659 struct xe_oa_unit *u; 660 int gt_id, i, j, ret; 661 struct xe_gt *gt; 662 u8 *pdu; 663 664 if (query->size == 0) { 665 query->size = size; 666 return 0; 667 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 668 return -EINVAL; 669 } 670 671 qoa = kzalloc(size, GFP_KERNEL); 672 if (!qoa) 673 return -ENOMEM; 674 675 pdu = (u8 *)&qoa->oa_units[0]; 676 for_each_gt(gt, xe, gt_id) { 677 for (i = 0; i < gt->oa.num_oa_units; i++) { 678 u = >->oa.oa_unit[i]; 679 du = (struct drm_xe_oa_unit *)pdu; 680 681 du->oa_unit_id = u->oa_unit_id; 682 du->oa_unit_type = u->type; 683 du->oa_timestamp_freq = xe_oa_timestamp_frequency(gt); 684 du->capabilities = DRM_XE_OA_CAPS_BASE | DRM_XE_OA_CAPS_SYNCS | 685 DRM_XE_OA_CAPS_OA_BUFFER_SIZE | 686 DRM_XE_OA_CAPS_WAIT_NUM_REPORTS; 687 688 j = 0; 689 for_each_hw_engine(hwe, gt, hwe_id) { 690 if (!xe_hw_engine_is_reserved(hwe) && 691 xe_oa_unit_id(hwe) == u->oa_unit_id) { 692 du->eci[j].engine_class = 693 xe_to_user_engine_class[hwe->class]; 694 du->eci[j].engine_instance = hwe->logical_instance; 695 du->eci[j].gt_id = gt->info.id; 696 j++; 697 } 698 } 699 du->num_engines = j; 700 pdu += sizeof(*du) + j * sizeof(du->eci[0]); 701 qoa->num_oa_units++; 702 } 703 } 704 705 ret = copy_to_user(query_ptr, qoa, size); 706 kfree(qoa); 707 708 return ret ? -EFAULT : 0; 709 } 710 711 static int query_pxp_status(struct xe_device *xe, struct drm_xe_device_query *query) 712 { 713 struct drm_xe_query_pxp_status __user *query_ptr = u64_to_user_ptr(query->data); 714 size_t size = sizeof(struct drm_xe_query_pxp_status); 715 struct drm_xe_query_pxp_status resp = { 0 }; 716 int ret; 717 718 if (query->size == 0) { 719 query->size = size; 720 return 0; 721 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 722 return -EINVAL; 723 } 724 725 ret = xe_pxp_get_readiness_status(xe->pxp); 726 if (ret < 0) 727 return ret; 728 729 resp.status = ret; 730 resp.supported_session_types = BIT(DRM_XE_PXP_TYPE_HWDRM); 731 732 if (copy_to_user(query_ptr, &resp, size)) 733 return -EFAULT; 734 735 return 0; 736 } 737 738 static int query_eu_stall(struct xe_device *xe, 739 struct drm_xe_device_query *query) 740 { 741 void __user *query_ptr = u64_to_user_ptr(query->data); 742 struct drm_xe_query_eu_stall *info; 743 size_t size, array_size; 744 const u64 *rates; 745 u32 num_rates; 746 int ret; 747 748 if (!xe_eu_stall_supported_on_platform(xe)) { 749 drm_dbg(&xe->drm, "EU stall monitoring is not supported on this platform\n"); 750 return -ENODEV; 751 } 752 753 array_size = xe_eu_stall_get_sampling_rates(&num_rates, &rates); 754 size = sizeof(struct drm_xe_query_eu_stall) + array_size; 755 756 if (query->size == 0) { 757 query->size = size; 758 return 0; 759 } else if (XE_IOCTL_DBG(xe, query->size != size)) { 760 return -EINVAL; 761 } 762 763 info = kzalloc(size, GFP_KERNEL); 764 if (!info) 765 return -ENOMEM; 766 767 info->num_sampling_rates = num_rates; 768 info->capabilities = DRM_XE_EU_STALL_CAPS_BASE; 769 info->record_size = xe_eu_stall_data_record_size(xe); 770 info->per_xecore_buf_size = xe_eu_stall_get_per_xecore_buf_size(); 771 memcpy(info->sampling_rates, rates, array_size); 772 773 ret = copy_to_user(query_ptr, info, size); 774 kfree(info); 775 776 return ret ? -EFAULT : 0; 777 } 778 779 static int (* const xe_query_funcs[])(struct xe_device *xe, 780 struct drm_xe_device_query *query) = { 781 query_engines, 782 query_mem_regions, 783 query_config, 784 query_gt_list, 785 query_hwconfig, 786 query_gt_topology, 787 query_engine_cycles, 788 query_uc_fw_version, 789 query_oa_units, 790 query_pxp_status, 791 query_eu_stall, 792 }; 793 794 int xe_query_ioctl(struct drm_device *dev, void *data, struct drm_file *file) 795 { 796 struct xe_device *xe = to_xe_device(dev); 797 struct drm_xe_device_query *query = data; 798 u32 idx; 799 800 if (XE_IOCTL_DBG(xe, query->extensions) || 801 XE_IOCTL_DBG(xe, query->reserved[0] || query->reserved[1])) 802 return -EINVAL; 803 804 if (XE_IOCTL_DBG(xe, query->query >= ARRAY_SIZE(xe_query_funcs))) 805 return -EINVAL; 806 807 idx = array_index_nospec(query->query, ARRAY_SIZE(xe_query_funcs)); 808 if (XE_IOCTL_DBG(xe, !xe_query_funcs[idx])) 809 return -EINVAL; 810 811 return xe_query_funcs[idx](xe, query); 812 } 813