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(AFBC_FEATURES, afbc_features); 67 PANFROST_FEATURE_ARRAY(TEXTURE_FEATURES, texture_features, 3); 68 PANFROST_FEATURE_ARRAY(JS_FEATURES, js_features, 15); 69 PANFROST_FEATURE(NR_CORE_GROUPS, nr_core_groups); 70 PANFROST_FEATURE(THREAD_TLS_ALLOC, thread_tls_alloc); 71 default: 72 return -EINVAL; 73 } 74 75 return 0; 76 } 77 78 static int panfrost_ioctl_create_bo(struct drm_device *dev, void *data, 79 struct drm_file *file) 80 { 81 struct panfrost_file_priv *priv = file->driver_priv; 82 struct panfrost_gem_object *bo; 83 struct drm_panfrost_create_bo *args = data; 84 struct panfrost_gem_mapping *mapping; 85 int ret; 86 87 if (!args->size || args->pad || 88 (args->flags & ~(PANFROST_BO_NOEXEC | PANFROST_BO_HEAP))) 89 return -EINVAL; 90 91 /* Heaps should never be executable */ 92 if ((args->flags & PANFROST_BO_HEAP) && 93 !(args->flags & PANFROST_BO_NOEXEC)) 94 return -EINVAL; 95 96 bo = panfrost_gem_create(dev, args->size, args->flags); 97 if (IS_ERR(bo)) 98 return PTR_ERR(bo); 99 100 ret = drm_gem_handle_create(file, &bo->base.base, &args->handle); 101 if (ret) 102 goto out; 103 104 mapping = panfrost_gem_mapping_get(bo, priv); 105 if (mapping) { 106 args->offset = mapping->mmnode.start << PAGE_SHIFT; 107 panfrost_gem_mapping_put(mapping); 108 } else { 109 /* This can only happen if the handle from 110 * drm_gem_handle_create() has already been guessed and freed 111 * by user space 112 */ 113 ret = -EINVAL; 114 } 115 116 out: 117 drm_gem_object_put(&bo->base.base); 118 return ret; 119 } 120 121 /** 122 * panfrost_lookup_bos() - Sets up job->bo[] with the GEM objects 123 * referenced by the job. 124 * @dev: DRM device 125 * @file_priv: DRM file for this fd 126 * @args: IOCTL args 127 * @job: job being set up 128 * 129 * Resolve handles from userspace to BOs and attach them to job. 130 * 131 * Note that this function doesn't need to unreference the BOs on 132 * failure, because that will happen at panfrost_job_cleanup() time. 133 */ 134 static int 135 panfrost_lookup_bos(struct drm_device *dev, 136 struct drm_file *file_priv, 137 struct drm_panfrost_submit *args, 138 struct panfrost_job *job) 139 { 140 struct panfrost_file_priv *priv = file_priv->driver_priv; 141 struct panfrost_gem_object *bo; 142 unsigned int i; 143 int ret; 144 145 job->bo_count = args->bo_handle_count; 146 147 if (!job->bo_count) 148 return 0; 149 150 ret = drm_gem_objects_lookup(file_priv, 151 (void __user *)(uintptr_t)args->bo_handles, 152 job->bo_count, &job->bos); 153 if (ret) 154 return ret; 155 156 job->mappings = kvmalloc_array(job->bo_count, 157 sizeof(struct panfrost_gem_mapping *), 158 GFP_KERNEL | __GFP_ZERO); 159 if (!job->mappings) 160 return -ENOMEM; 161 162 for (i = 0; i < job->bo_count; i++) { 163 struct panfrost_gem_mapping *mapping; 164 165 bo = to_panfrost_bo(job->bos[i]); 166 mapping = panfrost_gem_mapping_get(bo, priv); 167 if (!mapping) { 168 ret = -EINVAL; 169 break; 170 } 171 172 atomic_inc(&bo->gpu_usecount); 173 job->mappings[i] = mapping; 174 } 175 176 return ret; 177 } 178 179 /** 180 * panfrost_copy_in_sync() - Sets up job->deps with the sync objects 181 * referenced by the job. 182 * @dev: DRM device 183 * @file_priv: DRM file for this fd 184 * @args: IOCTL args 185 * @job: job being set up 186 * 187 * Resolve syncobjs from userspace to fences and attach them to job. 188 * 189 * Note that this function doesn't need to unreference the fences on 190 * failure, because that will happen at panfrost_job_cleanup() time. 191 */ 192 static int 193 panfrost_copy_in_sync(struct drm_device *dev, 194 struct drm_file *file_priv, 195 struct drm_panfrost_submit *args, 196 struct panfrost_job *job) 197 { 198 u32 *handles; 199 int ret = 0; 200 int i, in_fence_count; 201 202 in_fence_count = args->in_sync_count; 203 204 if (!in_fence_count) 205 return 0; 206 207 handles = kvmalloc_array(in_fence_count, sizeof(u32), GFP_KERNEL); 208 if (!handles) { 209 ret = -ENOMEM; 210 DRM_DEBUG("Failed to allocate incoming syncobj handles\n"); 211 goto fail; 212 } 213 214 if (copy_from_user(handles, 215 (void __user *)(uintptr_t)args->in_syncs, 216 in_fence_count * sizeof(u32))) { 217 ret = -EFAULT; 218 DRM_DEBUG("Failed to copy in syncobj handles\n"); 219 goto fail; 220 } 221 222 for (i = 0; i < in_fence_count; i++) { 223 struct dma_fence *fence; 224 225 ret = drm_syncobj_find_fence(file_priv, handles[i], 0, 0, 226 &fence); 227 if (ret) 228 goto fail; 229 230 ret = drm_sched_job_add_dependency(&job->base, fence); 231 232 if (ret) 233 goto fail; 234 } 235 236 fail: 237 kvfree(handles); 238 return ret; 239 } 240 241 static int panfrost_ioctl_submit(struct drm_device *dev, void *data, 242 struct drm_file *file) 243 { 244 struct panfrost_device *pfdev = dev->dev_private; 245 struct panfrost_file_priv *file_priv = file->driver_priv; 246 struct drm_panfrost_submit *args = data; 247 struct drm_syncobj *sync_out = NULL; 248 struct panfrost_job *job; 249 int ret = 0, slot; 250 251 if (!args->jc) 252 return -EINVAL; 253 254 if (args->requirements && args->requirements != PANFROST_JD_REQ_FS) 255 return -EINVAL; 256 257 if (args->out_sync > 0) { 258 sync_out = drm_syncobj_find(file, args->out_sync); 259 if (!sync_out) 260 return -ENODEV; 261 } 262 263 job = kzalloc(sizeof(*job), GFP_KERNEL); 264 if (!job) { 265 ret = -ENOMEM; 266 goto out_put_syncout; 267 } 268 269 kref_init(&job->refcount); 270 271 job->pfdev = pfdev; 272 job->jc = args->jc; 273 job->requirements = args->requirements; 274 job->flush_id = panfrost_gpu_get_latest_flush_id(pfdev); 275 job->mmu = file_priv->mmu; 276 277 slot = panfrost_job_get_slot(job); 278 279 ret = drm_sched_job_init(&job->base, 280 &file_priv->sched_entity[slot], 281 NULL); 282 if (ret) 283 goto out_put_job; 284 285 ret = panfrost_copy_in_sync(dev, file, args, job); 286 if (ret) 287 goto out_cleanup_job; 288 289 ret = panfrost_lookup_bos(dev, file, args, job); 290 if (ret) 291 goto out_cleanup_job; 292 293 ret = panfrost_job_push(job); 294 if (ret) 295 goto out_cleanup_job; 296 297 /* Update the return sync object for the job */ 298 if (sync_out) 299 drm_syncobj_replace_fence(sync_out, job->render_done_fence); 300 301 out_cleanup_job: 302 if (ret) 303 drm_sched_job_cleanup(&job->base); 304 out_put_job: 305 panfrost_job_put(job); 306 out_put_syncout: 307 if (sync_out) 308 drm_syncobj_put(sync_out); 309 310 return ret; 311 } 312 313 static int 314 panfrost_ioctl_wait_bo(struct drm_device *dev, void *data, 315 struct drm_file *file_priv) 316 { 317 long ret; 318 struct drm_panfrost_wait_bo *args = data; 319 struct drm_gem_object *gem_obj; 320 unsigned long timeout = drm_timeout_abs_to_jiffies(args->timeout_ns); 321 322 if (args->pad) 323 return -EINVAL; 324 325 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 326 if (!gem_obj) 327 return -ENOENT; 328 329 ret = dma_resv_wait_timeout(gem_obj->resv, DMA_RESV_USAGE_READ, 330 true, timeout); 331 if (!ret) 332 ret = timeout ? -ETIMEDOUT : -EBUSY; 333 334 drm_gem_object_put(gem_obj); 335 336 return ret; 337 } 338 339 static int panfrost_ioctl_mmap_bo(struct drm_device *dev, void *data, 340 struct drm_file *file_priv) 341 { 342 struct drm_panfrost_mmap_bo *args = data; 343 struct drm_gem_object *gem_obj; 344 int ret; 345 346 if (args->flags != 0) { 347 DRM_INFO("unknown mmap_bo flags: %d\n", args->flags); 348 return -EINVAL; 349 } 350 351 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 352 if (!gem_obj) { 353 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 354 return -ENOENT; 355 } 356 357 /* Don't allow mmapping of heap objects as pages are not pinned. */ 358 if (to_panfrost_bo(gem_obj)->is_heap) { 359 ret = -EINVAL; 360 goto out; 361 } 362 363 ret = drm_gem_create_mmap_offset(gem_obj); 364 if (ret == 0) 365 args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node); 366 367 out: 368 drm_gem_object_put(gem_obj); 369 return ret; 370 } 371 372 static int panfrost_ioctl_get_bo_offset(struct drm_device *dev, void *data, 373 struct drm_file *file_priv) 374 { 375 struct panfrost_file_priv *priv = file_priv->driver_priv; 376 struct drm_panfrost_get_bo_offset *args = data; 377 struct panfrost_gem_mapping *mapping; 378 struct drm_gem_object *gem_obj; 379 struct panfrost_gem_object *bo; 380 381 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 382 if (!gem_obj) { 383 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 384 return -ENOENT; 385 } 386 bo = to_panfrost_bo(gem_obj); 387 388 mapping = panfrost_gem_mapping_get(bo, priv); 389 drm_gem_object_put(gem_obj); 390 391 if (!mapping) 392 return -EINVAL; 393 394 args->offset = mapping->mmnode.start << PAGE_SHIFT; 395 panfrost_gem_mapping_put(mapping); 396 return 0; 397 } 398 399 static int panfrost_ioctl_madvise(struct drm_device *dev, void *data, 400 struct drm_file *file_priv) 401 { 402 struct panfrost_file_priv *priv = file_priv->driver_priv; 403 struct drm_panfrost_madvise *args = data; 404 struct panfrost_device *pfdev = dev->dev_private; 405 struct drm_gem_object *gem_obj; 406 struct panfrost_gem_object *bo; 407 int ret = 0; 408 409 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 410 if (!gem_obj) { 411 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 412 return -ENOENT; 413 } 414 415 bo = to_panfrost_bo(gem_obj); 416 417 mutex_lock(&pfdev->shrinker_lock); 418 mutex_lock(&bo->mappings.lock); 419 if (args->madv == PANFROST_MADV_DONTNEED) { 420 struct panfrost_gem_mapping *first; 421 422 first = list_first_entry(&bo->mappings.list, 423 struct panfrost_gem_mapping, 424 node); 425 426 /* 427 * If we want to mark the BO purgeable, there must be only one 428 * user: the caller FD. 429 * We could do something smarter and mark the BO purgeable only 430 * when all its users have marked it purgeable, but globally 431 * visible/shared BOs are likely to never be marked purgeable 432 * anyway, so let's not bother. 433 */ 434 if (!list_is_singular(&bo->mappings.list) || 435 WARN_ON_ONCE(first->mmu != priv->mmu)) { 436 ret = -EINVAL; 437 goto out_unlock_mappings; 438 } 439 } 440 441 args->retained = drm_gem_shmem_madvise(&bo->base, args->madv); 442 443 if (args->retained) { 444 if (args->madv == PANFROST_MADV_DONTNEED) 445 list_move_tail(&bo->base.madv_list, 446 &pfdev->shrinker_list); 447 else if (args->madv == PANFROST_MADV_WILLNEED) 448 list_del_init(&bo->base.madv_list); 449 } 450 451 out_unlock_mappings: 452 mutex_unlock(&bo->mappings.lock); 453 mutex_unlock(&pfdev->shrinker_lock); 454 455 drm_gem_object_put(gem_obj); 456 return ret; 457 } 458 459 int panfrost_unstable_ioctl_check(void) 460 { 461 if (!unstable_ioctls) 462 return -ENOSYS; 463 464 return 0; 465 } 466 467 static int 468 panfrost_open(struct drm_device *dev, struct drm_file *file) 469 { 470 int ret; 471 struct panfrost_device *pfdev = dev->dev_private; 472 struct panfrost_file_priv *panfrost_priv; 473 474 panfrost_priv = kzalloc(sizeof(*panfrost_priv), GFP_KERNEL); 475 if (!panfrost_priv) 476 return -ENOMEM; 477 478 panfrost_priv->pfdev = pfdev; 479 file->driver_priv = panfrost_priv; 480 481 panfrost_priv->mmu = panfrost_mmu_ctx_create(pfdev); 482 if (IS_ERR(panfrost_priv->mmu)) { 483 ret = PTR_ERR(panfrost_priv->mmu); 484 goto err_free; 485 } 486 487 ret = panfrost_job_open(panfrost_priv); 488 if (ret) 489 goto err_job; 490 491 return 0; 492 493 err_job: 494 panfrost_mmu_ctx_put(panfrost_priv->mmu); 495 err_free: 496 kfree(panfrost_priv); 497 return ret; 498 } 499 500 static void 501 panfrost_postclose(struct drm_device *dev, struct drm_file *file) 502 { 503 struct panfrost_file_priv *panfrost_priv = file->driver_priv; 504 505 panfrost_perfcnt_close(file); 506 panfrost_job_close(panfrost_priv); 507 508 panfrost_mmu_ctx_put(panfrost_priv->mmu); 509 kfree(panfrost_priv); 510 } 511 512 static const struct drm_ioctl_desc panfrost_drm_driver_ioctls[] = { 513 #define PANFROST_IOCTL(n, func, flags) \ 514 DRM_IOCTL_DEF_DRV(PANFROST_##n, panfrost_ioctl_##func, flags) 515 516 PANFROST_IOCTL(SUBMIT, submit, DRM_RENDER_ALLOW), 517 PANFROST_IOCTL(WAIT_BO, wait_bo, DRM_RENDER_ALLOW), 518 PANFROST_IOCTL(CREATE_BO, create_bo, DRM_RENDER_ALLOW), 519 PANFROST_IOCTL(MMAP_BO, mmap_bo, DRM_RENDER_ALLOW), 520 PANFROST_IOCTL(GET_PARAM, get_param, DRM_RENDER_ALLOW), 521 PANFROST_IOCTL(GET_BO_OFFSET, get_bo_offset, DRM_RENDER_ALLOW), 522 PANFROST_IOCTL(PERFCNT_ENABLE, perfcnt_enable, DRM_RENDER_ALLOW), 523 PANFROST_IOCTL(PERFCNT_DUMP, perfcnt_dump, DRM_RENDER_ALLOW), 524 PANFROST_IOCTL(MADVISE, madvise, DRM_RENDER_ALLOW), 525 }; 526 527 DEFINE_DRM_GEM_FOPS(panfrost_drm_driver_fops); 528 529 /* 530 * Panfrost driver version: 531 * - 1.0 - initial interface 532 * - 1.1 - adds HEAP and NOEXEC flags for CREATE_BO 533 * - 1.2 - adds AFBC_FEATURES query 534 */ 535 static const struct drm_driver panfrost_drm_driver = { 536 .driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ, 537 .open = panfrost_open, 538 .postclose = panfrost_postclose, 539 .ioctls = panfrost_drm_driver_ioctls, 540 .num_ioctls = ARRAY_SIZE(panfrost_drm_driver_ioctls), 541 .fops = &panfrost_drm_driver_fops, 542 .name = "panfrost", 543 .desc = "panfrost DRM", 544 .date = "20180908", 545 .major = 1, 546 .minor = 2, 547 548 .gem_create_object = panfrost_gem_create_object, 549 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 550 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 551 .gem_prime_import_sg_table = panfrost_gem_prime_import_sg_table, 552 .gem_prime_mmap = drm_gem_prime_mmap, 553 }; 554 555 static int panfrost_probe(struct platform_device *pdev) 556 { 557 struct panfrost_device *pfdev; 558 struct drm_device *ddev; 559 int err; 560 561 pfdev = devm_kzalloc(&pdev->dev, sizeof(*pfdev), GFP_KERNEL); 562 if (!pfdev) 563 return -ENOMEM; 564 565 pfdev->pdev = pdev; 566 pfdev->dev = &pdev->dev; 567 568 platform_set_drvdata(pdev, pfdev); 569 570 pfdev->comp = of_device_get_match_data(&pdev->dev); 571 if (!pfdev->comp) 572 return -ENODEV; 573 574 pfdev->coherent = device_get_dma_attr(&pdev->dev) == DEV_DMA_COHERENT; 575 576 /* Allocate and initialize the DRM device. */ 577 ddev = drm_dev_alloc(&panfrost_drm_driver, &pdev->dev); 578 if (IS_ERR(ddev)) 579 return PTR_ERR(ddev); 580 581 ddev->dev_private = pfdev; 582 pfdev->ddev = ddev; 583 584 mutex_init(&pfdev->shrinker_lock); 585 INIT_LIST_HEAD(&pfdev->shrinker_list); 586 587 err = panfrost_device_init(pfdev); 588 if (err) { 589 if (err != -EPROBE_DEFER) 590 dev_err(&pdev->dev, "Fatal error during GPU init\n"); 591 goto err_out0; 592 } 593 594 pm_runtime_set_active(pfdev->dev); 595 pm_runtime_mark_last_busy(pfdev->dev); 596 pm_runtime_enable(pfdev->dev); 597 pm_runtime_set_autosuspend_delay(pfdev->dev, 50); /* ~3 frames */ 598 pm_runtime_use_autosuspend(pfdev->dev); 599 600 /* 601 * Register the DRM device with the core and the connectors with 602 * sysfs 603 */ 604 err = drm_dev_register(ddev, 0); 605 if (err < 0) 606 goto err_out1; 607 608 panfrost_gem_shrinker_init(ddev); 609 610 return 0; 611 612 err_out1: 613 pm_runtime_disable(pfdev->dev); 614 panfrost_device_fini(pfdev); 615 pm_runtime_set_suspended(pfdev->dev); 616 err_out0: 617 drm_dev_put(ddev); 618 return err; 619 } 620 621 static int panfrost_remove(struct platform_device *pdev) 622 { 623 struct panfrost_device *pfdev = platform_get_drvdata(pdev); 624 struct drm_device *ddev = pfdev->ddev; 625 626 drm_dev_unregister(ddev); 627 panfrost_gem_shrinker_cleanup(ddev); 628 629 pm_runtime_get_sync(pfdev->dev); 630 pm_runtime_disable(pfdev->dev); 631 panfrost_device_fini(pfdev); 632 pm_runtime_set_suspended(pfdev->dev); 633 634 drm_dev_put(ddev); 635 return 0; 636 } 637 638 /* 639 * The OPP core wants the supply names to be NULL terminated, but we need the 640 * correct num_supplies value for regulator core. Hence, we NULL terminate here 641 * and then initialize num_supplies with ARRAY_SIZE - 1. 642 */ 643 static const char * const default_supplies[] = { "mali", NULL }; 644 static const struct panfrost_compatible default_data = { 645 .num_supplies = ARRAY_SIZE(default_supplies) - 1, 646 .supply_names = default_supplies, 647 .num_pm_domains = 1, /* optional */ 648 .pm_domain_names = NULL, 649 }; 650 651 static const struct panfrost_compatible amlogic_data = { 652 .num_supplies = ARRAY_SIZE(default_supplies) - 1, 653 .supply_names = default_supplies, 654 .vendor_quirk = panfrost_gpu_amlogic_quirk, 655 }; 656 657 static const char * const mediatek_mt8183_supplies[] = { "mali", "sram", NULL }; 658 static const char * const mediatek_mt8183_pm_domains[] = { "core0", "core1", "core2" }; 659 static const struct panfrost_compatible mediatek_mt8183_data = { 660 .num_supplies = ARRAY_SIZE(mediatek_mt8183_supplies) - 1, 661 .supply_names = mediatek_mt8183_supplies, 662 .num_pm_domains = ARRAY_SIZE(mediatek_mt8183_pm_domains), 663 .pm_domain_names = mediatek_mt8183_pm_domains, 664 }; 665 666 static const struct of_device_id dt_match[] = { 667 /* Set first to probe before the generic compatibles */ 668 { .compatible = "amlogic,meson-gxm-mali", 669 .data = &amlogic_data, }, 670 { .compatible = "amlogic,meson-g12a-mali", 671 .data = &amlogic_data, }, 672 { .compatible = "arm,mali-t604", .data = &default_data, }, 673 { .compatible = "arm,mali-t624", .data = &default_data, }, 674 { .compatible = "arm,mali-t628", .data = &default_data, }, 675 { .compatible = "arm,mali-t720", .data = &default_data, }, 676 { .compatible = "arm,mali-t760", .data = &default_data, }, 677 { .compatible = "arm,mali-t820", .data = &default_data, }, 678 { .compatible = "arm,mali-t830", .data = &default_data, }, 679 { .compatible = "arm,mali-t860", .data = &default_data, }, 680 { .compatible = "arm,mali-t880", .data = &default_data, }, 681 { .compatible = "arm,mali-bifrost", .data = &default_data, }, 682 { .compatible = "arm,mali-valhall-jm", .data = &default_data, }, 683 { .compatible = "mediatek,mt8183-mali", .data = &mediatek_mt8183_data }, 684 {} 685 }; 686 MODULE_DEVICE_TABLE(of, dt_match); 687 688 static struct platform_driver panfrost_driver = { 689 .probe = panfrost_probe, 690 .remove = panfrost_remove, 691 .driver = { 692 .name = "panfrost", 693 .pm = pm_ptr(&panfrost_pm_ops), 694 .of_match_table = dt_match, 695 }, 696 }; 697 module_platform_driver(panfrost_driver); 698 699 MODULE_AUTHOR("Panfrost Project Developers"); 700 MODULE_DESCRIPTION("Panfrost DRM Driver"); 701 MODULE_LICENSE("GPL v2"); 702