1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright 2018 Marty E. Plummer <hanetzer@startmail.com> */ 3 /* Copyright 2019 Linaro, Ltd., Rob Herring <robh@kernel.org> */ 4 /* Copyright 2019 Collabora ltd. */ 5 6 #include <linux/module.h> 7 #include <linux/of_platform.h> 8 #include <linux/pagemap.h> 9 #include <linux/pm_runtime.h> 10 #include <drm/panfrost_drm.h> 11 #include <drm/drm_drv.h> 12 #include <drm/drm_ioctl.h> 13 #include <drm/drm_syncobj.h> 14 #include <drm/drm_utils.h> 15 16 #include "panfrost_device.h" 17 #include "panfrost_gem.h" 18 #include "panfrost_mmu.h" 19 #include "panfrost_job.h" 20 #include "panfrost_gpu.h" 21 #include "panfrost_perfcnt.h" 22 23 static bool unstable_ioctls; 24 module_param_unsafe(unstable_ioctls, bool, 0600); 25 26 static int panfrost_ioctl_get_param(struct drm_device *ddev, void *data, struct drm_file *file) 27 { 28 struct drm_panfrost_get_param *param = data; 29 struct panfrost_device *pfdev = ddev->dev_private; 30 31 if (param->pad != 0) 32 return -EINVAL; 33 34 #define PANFROST_FEATURE(name, member) \ 35 case DRM_PANFROST_PARAM_ ## name: \ 36 param->value = pfdev->features.member; \ 37 break 38 #define PANFROST_FEATURE_ARRAY(name, member, max) \ 39 case DRM_PANFROST_PARAM_ ## name ## 0 ... \ 40 DRM_PANFROST_PARAM_ ## name ## max: \ 41 param->value = pfdev->features.member[param->param - \ 42 DRM_PANFROST_PARAM_ ## name ## 0]; \ 43 break 44 45 switch (param->param) { 46 PANFROST_FEATURE(GPU_PROD_ID, id); 47 PANFROST_FEATURE(GPU_REVISION, revision); 48 PANFROST_FEATURE(SHADER_PRESENT, shader_present); 49 PANFROST_FEATURE(TILER_PRESENT, tiler_present); 50 PANFROST_FEATURE(L2_PRESENT, l2_present); 51 PANFROST_FEATURE(STACK_PRESENT, stack_present); 52 PANFROST_FEATURE(AS_PRESENT, as_present); 53 PANFROST_FEATURE(JS_PRESENT, js_present); 54 PANFROST_FEATURE(L2_FEATURES, l2_features); 55 PANFROST_FEATURE(CORE_FEATURES, core_features); 56 PANFROST_FEATURE(TILER_FEATURES, tiler_features); 57 PANFROST_FEATURE(MEM_FEATURES, mem_features); 58 PANFROST_FEATURE(MMU_FEATURES, mmu_features); 59 PANFROST_FEATURE(THREAD_FEATURES, thread_features); 60 PANFROST_FEATURE(MAX_THREADS, max_threads); 61 PANFROST_FEATURE(THREAD_MAX_WORKGROUP_SZ, 62 thread_max_workgroup_sz); 63 PANFROST_FEATURE(THREAD_MAX_BARRIER_SZ, 64 thread_max_barrier_sz); 65 PANFROST_FEATURE(COHERENCY_FEATURES, coherency_features); 66 PANFROST_FEATURE_ARRAY(TEXTURE_FEATURES, texture_features, 3); 67 PANFROST_FEATURE_ARRAY(JS_FEATURES, js_features, 15); 68 PANFROST_FEATURE(NR_CORE_GROUPS, nr_core_groups); 69 PANFROST_FEATURE(THREAD_TLS_ALLOC, thread_tls_alloc); 70 default: 71 return -EINVAL; 72 } 73 74 return 0; 75 } 76 77 static int panfrost_ioctl_create_bo(struct drm_device *dev, void *data, 78 struct drm_file *file) 79 { 80 struct panfrost_file_priv *priv = file->driver_priv; 81 struct panfrost_gem_object *bo; 82 struct drm_panfrost_create_bo *args = data; 83 struct panfrost_gem_mapping *mapping; 84 85 if (!args->size || args->pad || 86 (args->flags & ~(PANFROST_BO_NOEXEC | PANFROST_BO_HEAP))) 87 return -EINVAL; 88 89 /* Heaps should never be executable */ 90 if ((args->flags & PANFROST_BO_HEAP) && 91 !(args->flags & PANFROST_BO_NOEXEC)) 92 return -EINVAL; 93 94 bo = panfrost_gem_create_with_handle(file, dev, args->size, args->flags, 95 &args->handle); 96 if (IS_ERR(bo)) 97 return PTR_ERR(bo); 98 99 mapping = panfrost_gem_mapping_get(bo, priv); 100 if (!mapping) { 101 drm_gem_object_put(&bo->base.base); 102 return -EINVAL; 103 } 104 105 args->offset = mapping->mmnode.start << PAGE_SHIFT; 106 panfrost_gem_mapping_put(mapping); 107 108 return 0; 109 } 110 111 /** 112 * panfrost_lookup_bos() - Sets up job->bo[] with the GEM objects 113 * referenced by the job. 114 * @dev: DRM device 115 * @file_priv: DRM file for this fd 116 * @args: IOCTL args 117 * @job: job being set up 118 * 119 * Resolve handles from userspace to BOs and attach them to job. 120 * 121 * Note that this function doesn't need to unreference the BOs on 122 * failure, because that will happen at panfrost_job_cleanup() time. 123 */ 124 static int 125 panfrost_lookup_bos(struct drm_device *dev, 126 struct drm_file *file_priv, 127 struct drm_panfrost_submit *args, 128 struct panfrost_job *job) 129 { 130 struct panfrost_file_priv *priv = file_priv->driver_priv; 131 struct panfrost_gem_object *bo; 132 unsigned int i; 133 int ret; 134 135 job->bo_count = args->bo_handle_count; 136 137 if (!job->bo_count) 138 return 0; 139 140 job->implicit_fences = kvmalloc_array(job->bo_count, 141 sizeof(struct dma_fence *), 142 GFP_KERNEL | __GFP_ZERO); 143 if (!job->implicit_fences) 144 return -ENOMEM; 145 146 ret = drm_gem_objects_lookup(file_priv, 147 (void __user *)(uintptr_t)args->bo_handles, 148 job->bo_count, &job->bos); 149 if (ret) 150 return ret; 151 152 job->mappings = kvmalloc_array(job->bo_count, 153 sizeof(struct panfrost_gem_mapping *), 154 GFP_KERNEL | __GFP_ZERO); 155 if (!job->mappings) 156 return -ENOMEM; 157 158 for (i = 0; i < job->bo_count; i++) { 159 struct panfrost_gem_mapping *mapping; 160 161 bo = to_panfrost_bo(job->bos[i]); 162 mapping = panfrost_gem_mapping_get(bo, priv); 163 if (!mapping) { 164 ret = -EINVAL; 165 break; 166 } 167 168 atomic_inc(&bo->gpu_usecount); 169 job->mappings[i] = mapping; 170 } 171 172 return ret; 173 } 174 175 /** 176 * panfrost_copy_in_sync() - Sets up job->in_fences[] with the sync objects 177 * referenced by the job. 178 * @dev: DRM device 179 * @file_priv: DRM file for this fd 180 * @args: IOCTL args 181 * @job: job being set up 182 * 183 * Resolve syncobjs from userspace to fences and attach them to job. 184 * 185 * Note that this function doesn't need to unreference the fences on 186 * failure, because that will happen at panfrost_job_cleanup() time. 187 */ 188 static int 189 panfrost_copy_in_sync(struct drm_device *dev, 190 struct drm_file *file_priv, 191 struct drm_panfrost_submit *args, 192 struct panfrost_job *job) 193 { 194 u32 *handles; 195 int ret = 0; 196 int i; 197 198 job->in_fence_count = args->in_sync_count; 199 200 if (!job->in_fence_count) 201 return 0; 202 203 job->in_fences = kvmalloc_array(job->in_fence_count, 204 sizeof(struct dma_fence *), 205 GFP_KERNEL | __GFP_ZERO); 206 if (!job->in_fences) { 207 DRM_DEBUG("Failed to allocate job in fences\n"); 208 return -ENOMEM; 209 } 210 211 handles = kvmalloc_array(job->in_fence_count, sizeof(u32), GFP_KERNEL); 212 if (!handles) { 213 ret = -ENOMEM; 214 DRM_DEBUG("Failed to allocate incoming syncobj handles\n"); 215 goto fail; 216 } 217 218 if (copy_from_user(handles, 219 (void __user *)(uintptr_t)args->in_syncs, 220 job->in_fence_count * sizeof(u32))) { 221 ret = -EFAULT; 222 DRM_DEBUG("Failed to copy in syncobj handles\n"); 223 goto fail; 224 } 225 226 for (i = 0; i < job->in_fence_count; i++) { 227 ret = drm_syncobj_find_fence(file_priv, handles[i], 0, 0, 228 &job->in_fences[i]); 229 if (ret == -EINVAL) 230 goto fail; 231 } 232 233 fail: 234 kvfree(handles); 235 return ret; 236 } 237 238 static int panfrost_ioctl_submit(struct drm_device *dev, void *data, 239 struct drm_file *file) 240 { 241 struct panfrost_device *pfdev = dev->dev_private; 242 struct drm_panfrost_submit *args = data; 243 struct drm_syncobj *sync_out = NULL; 244 struct panfrost_job *job; 245 int ret = 0; 246 247 if (!args->jc) 248 return -EINVAL; 249 250 if (args->requirements && args->requirements != PANFROST_JD_REQ_FS) 251 return -EINVAL; 252 253 if (args->out_sync > 0) { 254 sync_out = drm_syncobj_find(file, args->out_sync); 255 if (!sync_out) 256 return -ENODEV; 257 } 258 259 job = kzalloc(sizeof(*job), GFP_KERNEL); 260 if (!job) { 261 ret = -ENOMEM; 262 goto fail_out_sync; 263 } 264 265 kref_init(&job->refcount); 266 267 job->pfdev = pfdev; 268 job->jc = args->jc; 269 job->requirements = args->requirements; 270 job->flush_id = panfrost_gpu_get_latest_flush_id(pfdev); 271 job->file_priv = file->driver_priv; 272 273 ret = panfrost_copy_in_sync(dev, file, args, job); 274 if (ret) 275 goto fail_job; 276 277 ret = panfrost_lookup_bos(dev, file, args, job); 278 if (ret) 279 goto fail_job; 280 281 ret = panfrost_job_push(job); 282 if (ret) 283 goto fail_job; 284 285 /* Update the return sync object for the job */ 286 if (sync_out) 287 drm_syncobj_replace_fence(sync_out, job->render_done_fence); 288 289 fail_job: 290 panfrost_job_put(job); 291 fail_out_sync: 292 if (sync_out) 293 drm_syncobj_put(sync_out); 294 295 return ret; 296 } 297 298 static int 299 panfrost_ioctl_wait_bo(struct drm_device *dev, void *data, 300 struct drm_file *file_priv) 301 { 302 long ret; 303 struct drm_panfrost_wait_bo *args = data; 304 struct drm_gem_object *gem_obj; 305 unsigned long timeout = drm_timeout_abs_to_jiffies(args->timeout_ns); 306 307 if (args->pad) 308 return -EINVAL; 309 310 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 311 if (!gem_obj) 312 return -ENOENT; 313 314 ret = dma_resv_wait_timeout_rcu(gem_obj->resv, true, 315 true, timeout); 316 if (!ret) 317 ret = timeout ? -ETIMEDOUT : -EBUSY; 318 319 drm_gem_object_put(gem_obj); 320 321 return ret; 322 } 323 324 static int panfrost_ioctl_mmap_bo(struct drm_device *dev, void *data, 325 struct drm_file *file_priv) 326 { 327 struct drm_panfrost_mmap_bo *args = data; 328 struct drm_gem_object *gem_obj; 329 int ret; 330 331 if (args->flags != 0) { 332 DRM_INFO("unknown mmap_bo flags: %d\n", args->flags); 333 return -EINVAL; 334 } 335 336 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 337 if (!gem_obj) { 338 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 339 return -ENOENT; 340 } 341 342 /* Don't allow mmapping of heap objects as pages are not pinned. */ 343 if (to_panfrost_bo(gem_obj)->is_heap) { 344 ret = -EINVAL; 345 goto out; 346 } 347 348 ret = drm_gem_create_mmap_offset(gem_obj); 349 if (ret == 0) 350 args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node); 351 352 out: 353 drm_gem_object_put(gem_obj); 354 return ret; 355 } 356 357 static int panfrost_ioctl_get_bo_offset(struct drm_device *dev, void *data, 358 struct drm_file *file_priv) 359 { 360 struct panfrost_file_priv *priv = file_priv->driver_priv; 361 struct drm_panfrost_get_bo_offset *args = data; 362 struct panfrost_gem_mapping *mapping; 363 struct drm_gem_object *gem_obj; 364 struct panfrost_gem_object *bo; 365 366 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 367 if (!gem_obj) { 368 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 369 return -ENOENT; 370 } 371 bo = to_panfrost_bo(gem_obj); 372 373 mapping = panfrost_gem_mapping_get(bo, priv); 374 drm_gem_object_put(gem_obj); 375 376 if (!mapping) 377 return -EINVAL; 378 379 args->offset = mapping->mmnode.start << PAGE_SHIFT; 380 panfrost_gem_mapping_put(mapping); 381 return 0; 382 } 383 384 static int panfrost_ioctl_madvise(struct drm_device *dev, void *data, 385 struct drm_file *file_priv) 386 { 387 struct panfrost_file_priv *priv = file_priv->driver_priv; 388 struct drm_panfrost_madvise *args = data; 389 struct panfrost_device *pfdev = dev->dev_private; 390 struct drm_gem_object *gem_obj; 391 struct panfrost_gem_object *bo; 392 int ret = 0; 393 394 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 395 if (!gem_obj) { 396 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 397 return -ENOENT; 398 } 399 400 bo = to_panfrost_bo(gem_obj); 401 402 mutex_lock(&pfdev->shrinker_lock); 403 mutex_lock(&bo->mappings.lock); 404 if (args->madv == PANFROST_MADV_DONTNEED) { 405 struct panfrost_gem_mapping *first; 406 407 first = list_first_entry(&bo->mappings.list, 408 struct panfrost_gem_mapping, 409 node); 410 411 /* 412 * If we want to mark the BO purgeable, there must be only one 413 * user: the caller FD. 414 * We could do something smarter and mark the BO purgeable only 415 * when all its users have marked it purgeable, but globally 416 * visible/shared BOs are likely to never be marked purgeable 417 * anyway, so let's not bother. 418 */ 419 if (!list_is_singular(&bo->mappings.list) || 420 WARN_ON_ONCE(first->mmu != &priv->mmu)) { 421 ret = -EINVAL; 422 goto out_unlock_mappings; 423 } 424 } 425 426 args->retained = drm_gem_shmem_madvise(gem_obj, args->madv); 427 428 if (args->retained) { 429 if (args->madv == PANFROST_MADV_DONTNEED) 430 list_add_tail(&bo->base.madv_list, 431 &pfdev->shrinker_list); 432 else if (args->madv == PANFROST_MADV_WILLNEED) 433 list_del_init(&bo->base.madv_list); 434 } 435 436 out_unlock_mappings: 437 mutex_unlock(&bo->mappings.lock); 438 mutex_unlock(&pfdev->shrinker_lock); 439 440 drm_gem_object_put(gem_obj); 441 return ret; 442 } 443 444 int panfrost_unstable_ioctl_check(void) 445 { 446 if (!unstable_ioctls) 447 return -ENOSYS; 448 449 return 0; 450 } 451 452 #define PFN_4G (SZ_4G >> PAGE_SHIFT) 453 #define PFN_4G_MASK (PFN_4G - 1) 454 #define PFN_16M (SZ_16M >> PAGE_SHIFT) 455 456 static void panfrost_drm_mm_color_adjust(const struct drm_mm_node *node, 457 unsigned long color, 458 u64 *start, u64 *end) 459 { 460 /* Executable buffers can't start or end on a 4GB boundary */ 461 if (!(color & PANFROST_BO_NOEXEC)) { 462 u64 next_seg; 463 464 if ((*start & PFN_4G_MASK) == 0) 465 (*start)++; 466 467 if ((*end & PFN_4G_MASK) == 0) 468 (*end)--; 469 470 next_seg = ALIGN(*start, PFN_4G); 471 if (next_seg - *start <= PFN_16M) 472 *start = next_seg + 1; 473 474 *end = min(*end, ALIGN(*start, PFN_4G) - 1); 475 } 476 } 477 478 static int 479 panfrost_open(struct drm_device *dev, struct drm_file *file) 480 { 481 int ret; 482 struct panfrost_device *pfdev = dev->dev_private; 483 struct panfrost_file_priv *panfrost_priv; 484 485 panfrost_priv = kzalloc(sizeof(*panfrost_priv), GFP_KERNEL); 486 if (!panfrost_priv) 487 return -ENOMEM; 488 489 panfrost_priv->pfdev = pfdev; 490 file->driver_priv = panfrost_priv; 491 492 spin_lock_init(&panfrost_priv->mm_lock); 493 494 /* 4G enough for now. can be 48-bit */ 495 drm_mm_init(&panfrost_priv->mm, SZ_32M >> PAGE_SHIFT, (SZ_4G - SZ_32M) >> PAGE_SHIFT); 496 panfrost_priv->mm.color_adjust = panfrost_drm_mm_color_adjust; 497 498 ret = panfrost_mmu_pgtable_alloc(panfrost_priv); 499 if (ret) 500 goto err_pgtable; 501 502 ret = panfrost_job_open(panfrost_priv); 503 if (ret) 504 goto err_job; 505 506 return 0; 507 508 err_job: 509 panfrost_mmu_pgtable_free(panfrost_priv); 510 err_pgtable: 511 drm_mm_takedown(&panfrost_priv->mm); 512 kfree(panfrost_priv); 513 return ret; 514 } 515 516 static void 517 panfrost_postclose(struct drm_device *dev, struct drm_file *file) 518 { 519 struct panfrost_file_priv *panfrost_priv = file->driver_priv; 520 521 panfrost_perfcnt_close(file); 522 panfrost_job_close(panfrost_priv); 523 524 panfrost_mmu_pgtable_free(panfrost_priv); 525 drm_mm_takedown(&panfrost_priv->mm); 526 kfree(panfrost_priv); 527 } 528 529 static const struct drm_ioctl_desc panfrost_drm_driver_ioctls[] = { 530 #define PANFROST_IOCTL(n, func, flags) \ 531 DRM_IOCTL_DEF_DRV(PANFROST_##n, panfrost_ioctl_##func, flags) 532 533 PANFROST_IOCTL(SUBMIT, submit, DRM_RENDER_ALLOW), 534 PANFROST_IOCTL(WAIT_BO, wait_bo, DRM_RENDER_ALLOW), 535 PANFROST_IOCTL(CREATE_BO, create_bo, DRM_RENDER_ALLOW), 536 PANFROST_IOCTL(MMAP_BO, mmap_bo, DRM_RENDER_ALLOW), 537 PANFROST_IOCTL(GET_PARAM, get_param, DRM_RENDER_ALLOW), 538 PANFROST_IOCTL(GET_BO_OFFSET, get_bo_offset, DRM_RENDER_ALLOW), 539 PANFROST_IOCTL(PERFCNT_ENABLE, perfcnt_enable, DRM_RENDER_ALLOW), 540 PANFROST_IOCTL(PERFCNT_DUMP, perfcnt_dump, DRM_RENDER_ALLOW), 541 PANFROST_IOCTL(MADVISE, madvise, DRM_RENDER_ALLOW), 542 }; 543 544 DEFINE_DRM_GEM_FOPS(panfrost_drm_driver_fops); 545 546 /* 547 * Panfrost driver version: 548 * - 1.0 - initial interface 549 * - 1.1 - adds HEAP and NOEXEC flags for CREATE_BO 550 */ 551 static const struct drm_driver panfrost_drm_driver = { 552 .driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ, 553 .open = panfrost_open, 554 .postclose = panfrost_postclose, 555 .ioctls = panfrost_drm_driver_ioctls, 556 .num_ioctls = ARRAY_SIZE(panfrost_drm_driver_ioctls), 557 .fops = &panfrost_drm_driver_fops, 558 .name = "panfrost", 559 .desc = "panfrost DRM", 560 .date = "20180908", 561 .major = 1, 562 .minor = 1, 563 564 .gem_create_object = panfrost_gem_create_object, 565 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 566 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 567 .gem_prime_import_sg_table = panfrost_gem_prime_import_sg_table, 568 .gem_prime_mmap = drm_gem_prime_mmap, 569 }; 570 571 static int panfrost_probe(struct platform_device *pdev) 572 { 573 struct panfrost_device *pfdev; 574 struct drm_device *ddev; 575 int err; 576 577 pfdev = devm_kzalloc(&pdev->dev, sizeof(*pfdev), GFP_KERNEL); 578 if (!pfdev) 579 return -ENOMEM; 580 581 pfdev->pdev = pdev; 582 pfdev->dev = &pdev->dev; 583 584 platform_set_drvdata(pdev, pfdev); 585 586 pfdev->comp = of_device_get_match_data(&pdev->dev); 587 if (!pfdev->comp) 588 return -ENODEV; 589 590 pfdev->coherent = device_get_dma_attr(&pdev->dev) == DEV_DMA_COHERENT; 591 592 /* Allocate and initialze the DRM device. */ 593 ddev = drm_dev_alloc(&panfrost_drm_driver, &pdev->dev); 594 if (IS_ERR(ddev)) 595 return PTR_ERR(ddev); 596 597 ddev->dev_private = pfdev; 598 pfdev->ddev = ddev; 599 600 mutex_init(&pfdev->shrinker_lock); 601 INIT_LIST_HEAD(&pfdev->shrinker_list); 602 603 err = panfrost_device_init(pfdev); 604 if (err) { 605 if (err != -EPROBE_DEFER) 606 dev_err(&pdev->dev, "Fatal error during GPU init\n"); 607 goto err_out0; 608 } 609 610 pm_runtime_set_active(pfdev->dev); 611 pm_runtime_mark_last_busy(pfdev->dev); 612 pm_runtime_enable(pfdev->dev); 613 pm_runtime_set_autosuspend_delay(pfdev->dev, 50); /* ~3 frames */ 614 pm_runtime_use_autosuspend(pfdev->dev); 615 616 /* 617 * Register the DRM device with the core and the connectors with 618 * sysfs 619 */ 620 err = drm_dev_register(ddev, 0); 621 if (err < 0) 622 goto err_out1; 623 624 panfrost_gem_shrinker_init(ddev); 625 626 return 0; 627 628 err_out1: 629 pm_runtime_disable(pfdev->dev); 630 panfrost_device_fini(pfdev); 631 pm_runtime_set_suspended(pfdev->dev); 632 err_out0: 633 drm_dev_put(ddev); 634 return err; 635 } 636 637 static int panfrost_remove(struct platform_device *pdev) 638 { 639 struct panfrost_device *pfdev = platform_get_drvdata(pdev); 640 struct drm_device *ddev = pfdev->ddev; 641 642 drm_dev_unregister(ddev); 643 panfrost_gem_shrinker_cleanup(ddev); 644 645 pm_runtime_get_sync(pfdev->dev); 646 pm_runtime_disable(pfdev->dev); 647 panfrost_device_fini(pfdev); 648 pm_runtime_set_suspended(pfdev->dev); 649 650 drm_dev_put(ddev); 651 return 0; 652 } 653 654 static const char * const default_supplies[] = { "mali" }; 655 static const struct panfrost_compatible default_data = { 656 .num_supplies = ARRAY_SIZE(default_supplies), 657 .supply_names = default_supplies, 658 .num_pm_domains = 1, /* optional */ 659 .pm_domain_names = NULL, 660 }; 661 662 static const struct panfrost_compatible amlogic_data = { 663 .num_supplies = ARRAY_SIZE(default_supplies), 664 .supply_names = default_supplies, 665 .vendor_quirk = panfrost_gpu_amlogic_quirk, 666 }; 667 668 const char * const mediatek_mt8183_supplies[] = { "mali", "sram" }; 669 const char * const mediatek_mt8183_pm_domains[] = { "core0", "core1", "core2" }; 670 static const struct panfrost_compatible mediatek_mt8183_data = { 671 .num_supplies = ARRAY_SIZE(mediatek_mt8183_supplies), 672 .supply_names = mediatek_mt8183_supplies, 673 .num_pm_domains = ARRAY_SIZE(mediatek_mt8183_pm_domains), 674 .pm_domain_names = mediatek_mt8183_pm_domains, 675 }; 676 677 static const struct of_device_id dt_match[] = { 678 /* Set first to probe before the generic compatibles */ 679 { .compatible = "amlogic,meson-gxm-mali", 680 .data = &amlogic_data, }, 681 { .compatible = "amlogic,meson-g12a-mali", 682 .data = &amlogic_data, }, 683 { .compatible = "arm,mali-t604", .data = &default_data, }, 684 { .compatible = "arm,mali-t624", .data = &default_data, }, 685 { .compatible = "arm,mali-t628", .data = &default_data, }, 686 { .compatible = "arm,mali-t720", .data = &default_data, }, 687 { .compatible = "arm,mali-t760", .data = &default_data, }, 688 { .compatible = "arm,mali-t820", .data = &default_data, }, 689 { .compatible = "arm,mali-t830", .data = &default_data, }, 690 { .compatible = "arm,mali-t860", .data = &default_data, }, 691 { .compatible = "arm,mali-t880", .data = &default_data, }, 692 { .compatible = "arm,mali-bifrost", .data = &default_data, }, 693 { .compatible = "mediatek,mt8183-mali", .data = &mediatek_mt8183_data }, 694 {} 695 }; 696 MODULE_DEVICE_TABLE(of, dt_match); 697 698 static const struct dev_pm_ops panfrost_pm_ops = { 699 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) 700 SET_RUNTIME_PM_OPS(panfrost_device_suspend, panfrost_device_resume, NULL) 701 }; 702 703 static struct platform_driver panfrost_driver = { 704 .probe = panfrost_probe, 705 .remove = panfrost_remove, 706 .driver = { 707 .name = "panfrost", 708 .pm = &panfrost_pm_ops, 709 .of_match_table = dt_match, 710 }, 711 }; 712 module_platform_driver(panfrost_driver); 713 714 MODULE_AUTHOR("Panfrost Project Developers"); 715 MODULE_DESCRIPTION("Panfrost DRM Driver"); 716 MODULE_LICENSE("GPL v2"); 717