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 ret = drm_sched_job_add_syncobj_dependency(&job->base, file_priv, 224 handles[i], 0); 225 if (ret) 226 goto fail; 227 } 228 229 fail: 230 kvfree(handles); 231 return ret; 232 } 233 234 static int panfrost_ioctl_submit(struct drm_device *dev, void *data, 235 struct drm_file *file) 236 { 237 struct panfrost_device *pfdev = dev->dev_private; 238 struct panfrost_file_priv *file_priv = file->driver_priv; 239 struct drm_panfrost_submit *args = data; 240 struct drm_syncobj *sync_out = NULL; 241 struct panfrost_job *job; 242 int ret = 0, slot; 243 244 if (!args->jc) 245 return -EINVAL; 246 247 if (args->requirements && args->requirements != PANFROST_JD_REQ_FS) 248 return -EINVAL; 249 250 if (args->out_sync > 0) { 251 sync_out = drm_syncobj_find(file, args->out_sync); 252 if (!sync_out) 253 return -ENODEV; 254 } 255 256 job = kzalloc(sizeof(*job), GFP_KERNEL); 257 if (!job) { 258 ret = -ENOMEM; 259 goto out_put_syncout; 260 } 261 262 kref_init(&job->refcount); 263 264 job->pfdev = pfdev; 265 job->jc = args->jc; 266 job->requirements = args->requirements; 267 job->flush_id = panfrost_gpu_get_latest_flush_id(pfdev); 268 job->mmu = file_priv->mmu; 269 270 slot = panfrost_job_get_slot(job); 271 272 ret = drm_sched_job_init(&job->base, 273 &file_priv->sched_entity[slot], 274 NULL); 275 if (ret) 276 goto out_put_job; 277 278 ret = panfrost_copy_in_sync(dev, file, args, job); 279 if (ret) 280 goto out_cleanup_job; 281 282 ret = panfrost_lookup_bos(dev, file, args, job); 283 if (ret) 284 goto out_cleanup_job; 285 286 ret = panfrost_job_push(job); 287 if (ret) 288 goto out_cleanup_job; 289 290 /* Update the return sync object for the job */ 291 if (sync_out) 292 drm_syncobj_replace_fence(sync_out, job->render_done_fence); 293 294 out_cleanup_job: 295 if (ret) 296 drm_sched_job_cleanup(&job->base); 297 out_put_job: 298 panfrost_job_put(job); 299 out_put_syncout: 300 if (sync_out) 301 drm_syncobj_put(sync_out); 302 303 return ret; 304 } 305 306 static int 307 panfrost_ioctl_wait_bo(struct drm_device *dev, void *data, 308 struct drm_file *file_priv) 309 { 310 long ret; 311 struct drm_panfrost_wait_bo *args = data; 312 struct drm_gem_object *gem_obj; 313 unsigned long timeout = drm_timeout_abs_to_jiffies(args->timeout_ns); 314 315 if (args->pad) 316 return -EINVAL; 317 318 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 319 if (!gem_obj) 320 return -ENOENT; 321 322 ret = dma_resv_wait_timeout(gem_obj->resv, DMA_RESV_USAGE_READ, 323 true, timeout); 324 if (!ret) 325 ret = timeout ? -ETIMEDOUT : -EBUSY; 326 327 drm_gem_object_put(gem_obj); 328 329 return ret; 330 } 331 332 static int panfrost_ioctl_mmap_bo(struct drm_device *dev, void *data, 333 struct drm_file *file_priv) 334 { 335 struct drm_panfrost_mmap_bo *args = data; 336 struct drm_gem_object *gem_obj; 337 int ret; 338 339 if (args->flags != 0) { 340 DRM_INFO("unknown mmap_bo flags: %d\n", args->flags); 341 return -EINVAL; 342 } 343 344 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 345 if (!gem_obj) { 346 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 347 return -ENOENT; 348 } 349 350 /* Don't allow mmapping of heap objects as pages are not pinned. */ 351 if (to_panfrost_bo(gem_obj)->is_heap) { 352 ret = -EINVAL; 353 goto out; 354 } 355 356 ret = drm_gem_create_mmap_offset(gem_obj); 357 if (ret == 0) 358 args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node); 359 360 out: 361 drm_gem_object_put(gem_obj); 362 return ret; 363 } 364 365 static int panfrost_ioctl_get_bo_offset(struct drm_device *dev, void *data, 366 struct drm_file *file_priv) 367 { 368 struct panfrost_file_priv *priv = file_priv->driver_priv; 369 struct drm_panfrost_get_bo_offset *args = data; 370 struct panfrost_gem_mapping *mapping; 371 struct drm_gem_object *gem_obj; 372 struct panfrost_gem_object *bo; 373 374 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 375 if (!gem_obj) { 376 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 377 return -ENOENT; 378 } 379 bo = to_panfrost_bo(gem_obj); 380 381 mapping = panfrost_gem_mapping_get(bo, priv); 382 drm_gem_object_put(gem_obj); 383 384 if (!mapping) 385 return -EINVAL; 386 387 args->offset = mapping->mmnode.start << PAGE_SHIFT; 388 panfrost_gem_mapping_put(mapping); 389 return 0; 390 } 391 392 static int panfrost_ioctl_madvise(struct drm_device *dev, void *data, 393 struct drm_file *file_priv) 394 { 395 struct panfrost_file_priv *priv = file_priv->driver_priv; 396 struct drm_panfrost_madvise *args = data; 397 struct panfrost_device *pfdev = dev->dev_private; 398 struct drm_gem_object *gem_obj; 399 struct panfrost_gem_object *bo; 400 int ret = 0; 401 402 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 403 if (!gem_obj) { 404 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 405 return -ENOENT; 406 } 407 408 bo = to_panfrost_bo(gem_obj); 409 410 mutex_lock(&pfdev->shrinker_lock); 411 mutex_lock(&bo->mappings.lock); 412 if (args->madv == PANFROST_MADV_DONTNEED) { 413 struct panfrost_gem_mapping *first; 414 415 first = list_first_entry(&bo->mappings.list, 416 struct panfrost_gem_mapping, 417 node); 418 419 /* 420 * If we want to mark the BO purgeable, there must be only one 421 * user: the caller FD. 422 * We could do something smarter and mark the BO purgeable only 423 * when all its users have marked it purgeable, but globally 424 * visible/shared BOs are likely to never be marked purgeable 425 * anyway, so let's not bother. 426 */ 427 if (!list_is_singular(&bo->mappings.list) || 428 WARN_ON_ONCE(first->mmu != priv->mmu)) { 429 ret = -EINVAL; 430 goto out_unlock_mappings; 431 } 432 } 433 434 args->retained = drm_gem_shmem_madvise(&bo->base, args->madv); 435 436 if (args->retained) { 437 if (args->madv == PANFROST_MADV_DONTNEED) 438 list_move_tail(&bo->base.madv_list, 439 &pfdev->shrinker_list); 440 else if (args->madv == PANFROST_MADV_WILLNEED) 441 list_del_init(&bo->base.madv_list); 442 } 443 444 out_unlock_mappings: 445 mutex_unlock(&bo->mappings.lock); 446 mutex_unlock(&pfdev->shrinker_lock); 447 448 drm_gem_object_put(gem_obj); 449 return ret; 450 } 451 452 int panfrost_unstable_ioctl_check(void) 453 { 454 if (!unstable_ioctls) 455 return -ENOSYS; 456 457 return 0; 458 } 459 460 static int 461 panfrost_open(struct drm_device *dev, struct drm_file *file) 462 { 463 int ret; 464 struct panfrost_device *pfdev = dev->dev_private; 465 struct panfrost_file_priv *panfrost_priv; 466 467 panfrost_priv = kzalloc(sizeof(*panfrost_priv), GFP_KERNEL); 468 if (!panfrost_priv) 469 return -ENOMEM; 470 471 panfrost_priv->pfdev = pfdev; 472 file->driver_priv = panfrost_priv; 473 474 panfrost_priv->mmu = panfrost_mmu_ctx_create(pfdev); 475 if (IS_ERR(panfrost_priv->mmu)) { 476 ret = PTR_ERR(panfrost_priv->mmu); 477 goto err_free; 478 } 479 480 ret = panfrost_job_open(panfrost_priv); 481 if (ret) 482 goto err_job; 483 484 return 0; 485 486 err_job: 487 panfrost_mmu_ctx_put(panfrost_priv->mmu); 488 err_free: 489 kfree(panfrost_priv); 490 return ret; 491 } 492 493 static void 494 panfrost_postclose(struct drm_device *dev, struct drm_file *file) 495 { 496 struct panfrost_file_priv *panfrost_priv = file->driver_priv; 497 498 panfrost_perfcnt_close(file); 499 panfrost_job_close(panfrost_priv); 500 501 panfrost_mmu_ctx_put(panfrost_priv->mmu); 502 kfree(panfrost_priv); 503 } 504 505 static const struct drm_ioctl_desc panfrost_drm_driver_ioctls[] = { 506 #define PANFROST_IOCTL(n, func, flags) \ 507 DRM_IOCTL_DEF_DRV(PANFROST_##n, panfrost_ioctl_##func, flags) 508 509 PANFROST_IOCTL(SUBMIT, submit, DRM_RENDER_ALLOW), 510 PANFROST_IOCTL(WAIT_BO, wait_bo, DRM_RENDER_ALLOW), 511 PANFROST_IOCTL(CREATE_BO, create_bo, DRM_RENDER_ALLOW), 512 PANFROST_IOCTL(MMAP_BO, mmap_bo, DRM_RENDER_ALLOW), 513 PANFROST_IOCTL(GET_PARAM, get_param, DRM_RENDER_ALLOW), 514 PANFROST_IOCTL(GET_BO_OFFSET, get_bo_offset, DRM_RENDER_ALLOW), 515 PANFROST_IOCTL(PERFCNT_ENABLE, perfcnt_enable, DRM_RENDER_ALLOW), 516 PANFROST_IOCTL(PERFCNT_DUMP, perfcnt_dump, DRM_RENDER_ALLOW), 517 PANFROST_IOCTL(MADVISE, madvise, DRM_RENDER_ALLOW), 518 }; 519 520 DEFINE_DRM_GEM_FOPS(panfrost_drm_driver_fops); 521 522 /* 523 * Panfrost driver version: 524 * - 1.0 - initial interface 525 * - 1.1 - adds HEAP and NOEXEC flags for CREATE_BO 526 * - 1.2 - adds AFBC_FEATURES query 527 */ 528 static const struct drm_driver panfrost_drm_driver = { 529 .driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ, 530 .open = panfrost_open, 531 .postclose = panfrost_postclose, 532 .ioctls = panfrost_drm_driver_ioctls, 533 .num_ioctls = ARRAY_SIZE(panfrost_drm_driver_ioctls), 534 .fops = &panfrost_drm_driver_fops, 535 .name = "panfrost", 536 .desc = "panfrost DRM", 537 .date = "20180908", 538 .major = 1, 539 .minor = 2, 540 541 .gem_create_object = panfrost_gem_create_object, 542 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 543 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 544 .gem_prime_import_sg_table = panfrost_gem_prime_import_sg_table, 545 .gem_prime_mmap = drm_gem_prime_mmap, 546 }; 547 548 static int panfrost_probe(struct platform_device *pdev) 549 { 550 struct panfrost_device *pfdev; 551 struct drm_device *ddev; 552 int err; 553 554 pfdev = devm_kzalloc(&pdev->dev, sizeof(*pfdev), GFP_KERNEL); 555 if (!pfdev) 556 return -ENOMEM; 557 558 pfdev->pdev = pdev; 559 pfdev->dev = &pdev->dev; 560 561 platform_set_drvdata(pdev, pfdev); 562 563 pfdev->comp = of_device_get_match_data(&pdev->dev); 564 if (!pfdev->comp) 565 return -ENODEV; 566 567 pfdev->coherent = device_get_dma_attr(&pdev->dev) == DEV_DMA_COHERENT; 568 569 /* Allocate and initialize the DRM device. */ 570 ddev = drm_dev_alloc(&panfrost_drm_driver, &pdev->dev); 571 if (IS_ERR(ddev)) 572 return PTR_ERR(ddev); 573 574 ddev->dev_private = pfdev; 575 pfdev->ddev = ddev; 576 577 mutex_init(&pfdev->shrinker_lock); 578 INIT_LIST_HEAD(&pfdev->shrinker_list); 579 580 err = panfrost_device_init(pfdev); 581 if (err) { 582 if (err != -EPROBE_DEFER) 583 dev_err(&pdev->dev, "Fatal error during GPU init\n"); 584 goto err_out0; 585 } 586 587 pm_runtime_set_active(pfdev->dev); 588 pm_runtime_mark_last_busy(pfdev->dev); 589 pm_runtime_enable(pfdev->dev); 590 pm_runtime_set_autosuspend_delay(pfdev->dev, 50); /* ~3 frames */ 591 pm_runtime_use_autosuspend(pfdev->dev); 592 593 /* 594 * Register the DRM device with the core and the connectors with 595 * sysfs 596 */ 597 err = drm_dev_register(ddev, 0); 598 if (err < 0) 599 goto err_out1; 600 601 panfrost_gem_shrinker_init(ddev); 602 603 return 0; 604 605 err_out1: 606 pm_runtime_disable(pfdev->dev); 607 panfrost_device_fini(pfdev); 608 pm_runtime_set_suspended(pfdev->dev); 609 err_out0: 610 drm_dev_put(ddev); 611 return err; 612 } 613 614 static int panfrost_remove(struct platform_device *pdev) 615 { 616 struct panfrost_device *pfdev = platform_get_drvdata(pdev); 617 struct drm_device *ddev = pfdev->ddev; 618 619 drm_dev_unregister(ddev); 620 panfrost_gem_shrinker_cleanup(ddev); 621 622 pm_runtime_get_sync(pfdev->dev); 623 pm_runtime_disable(pfdev->dev); 624 panfrost_device_fini(pfdev); 625 pm_runtime_set_suspended(pfdev->dev); 626 627 drm_dev_put(ddev); 628 return 0; 629 } 630 631 /* 632 * The OPP core wants the supply names to be NULL terminated, but we need the 633 * correct num_supplies value for regulator core. Hence, we NULL terminate here 634 * and then initialize num_supplies with ARRAY_SIZE - 1. 635 */ 636 static const char * const default_supplies[] = { "mali", NULL }; 637 static const struct panfrost_compatible default_data = { 638 .num_supplies = ARRAY_SIZE(default_supplies) - 1, 639 .supply_names = default_supplies, 640 .num_pm_domains = 1, /* optional */ 641 .pm_domain_names = NULL, 642 }; 643 644 static const struct panfrost_compatible amlogic_data = { 645 .num_supplies = ARRAY_SIZE(default_supplies) - 1, 646 .supply_names = default_supplies, 647 .vendor_quirk = panfrost_gpu_amlogic_quirk, 648 }; 649 650 /* 651 * The old data with two power supplies for MT8183 is here only to 652 * keep retro-compatibility with older devicetrees, as DVFS will 653 * not work with this one. 654 * 655 * On new devicetrees please use the _b variant with a single and 656 * coupled regulators instead. 657 */ 658 static const char * const mediatek_mt8183_supplies[] = { "mali", "sram", NULL }; 659 static const char * const mediatek_mt8183_pm_domains[] = { "core0", "core1", "core2" }; 660 static const struct panfrost_compatible mediatek_mt8183_data = { 661 .num_supplies = ARRAY_SIZE(mediatek_mt8183_supplies) - 1, 662 .supply_names = mediatek_mt8183_supplies, 663 .num_pm_domains = ARRAY_SIZE(mediatek_mt8183_pm_domains), 664 .pm_domain_names = mediatek_mt8183_pm_domains, 665 }; 666 667 static const char * const mediatek_mt8183_b_supplies[] = { "mali", NULL }; 668 static const struct panfrost_compatible mediatek_mt8183_b_data = { 669 .num_supplies = ARRAY_SIZE(mediatek_mt8183_b_supplies) - 1, 670 .supply_names = mediatek_mt8183_b_supplies, 671 .num_pm_domains = ARRAY_SIZE(mediatek_mt8183_pm_domains), 672 .pm_domain_names = mediatek_mt8183_pm_domains, 673 }; 674 675 static const char * const mediatek_mt8186_pm_domains[] = { "core0", "core1" }; 676 static const struct panfrost_compatible mediatek_mt8186_data = { 677 .num_supplies = ARRAY_SIZE(mediatek_mt8183_b_supplies) - 1, 678 .supply_names = mediatek_mt8183_b_supplies, 679 .num_pm_domains = ARRAY_SIZE(mediatek_mt8186_pm_domains), 680 .pm_domain_names = mediatek_mt8186_pm_domains, 681 }; 682 683 static const char * const mediatek_mt8192_supplies[] = { "mali", NULL }; 684 static const char * const mediatek_mt8192_pm_domains[] = { "core0", "core1", "core2", 685 "core3", "core4" }; 686 static const struct panfrost_compatible mediatek_mt8192_data = { 687 .num_supplies = ARRAY_SIZE(mediatek_mt8192_supplies) - 1, 688 .supply_names = mediatek_mt8192_supplies, 689 .num_pm_domains = ARRAY_SIZE(mediatek_mt8192_pm_domains), 690 .pm_domain_names = mediatek_mt8192_pm_domains, 691 }; 692 693 static const struct of_device_id dt_match[] = { 694 /* Set first to probe before the generic compatibles */ 695 { .compatible = "amlogic,meson-gxm-mali", 696 .data = &amlogic_data, }, 697 { .compatible = "amlogic,meson-g12a-mali", 698 .data = &amlogic_data, }, 699 { .compatible = "arm,mali-t604", .data = &default_data, }, 700 { .compatible = "arm,mali-t624", .data = &default_data, }, 701 { .compatible = "arm,mali-t628", .data = &default_data, }, 702 { .compatible = "arm,mali-t720", .data = &default_data, }, 703 { .compatible = "arm,mali-t760", .data = &default_data, }, 704 { .compatible = "arm,mali-t820", .data = &default_data, }, 705 { .compatible = "arm,mali-t830", .data = &default_data, }, 706 { .compatible = "arm,mali-t860", .data = &default_data, }, 707 { .compatible = "arm,mali-t880", .data = &default_data, }, 708 { .compatible = "arm,mali-bifrost", .data = &default_data, }, 709 { .compatible = "arm,mali-valhall-jm", .data = &default_data, }, 710 { .compatible = "mediatek,mt8183-mali", .data = &mediatek_mt8183_data }, 711 { .compatible = "mediatek,mt8183b-mali", .data = &mediatek_mt8183_b_data }, 712 { .compatible = "mediatek,mt8186-mali", .data = &mediatek_mt8186_data }, 713 { .compatible = "mediatek,mt8192-mali", .data = &mediatek_mt8192_data }, 714 {} 715 }; 716 MODULE_DEVICE_TABLE(of, dt_match); 717 718 static struct platform_driver panfrost_driver = { 719 .probe = panfrost_probe, 720 .remove = panfrost_remove, 721 .driver = { 722 .name = "panfrost", 723 .pm = pm_ptr(&panfrost_pm_ops), 724 .of_match_table = dt_match, 725 }, 726 }; 727 module_platform_driver(panfrost_driver); 728 729 MODULE_AUTHOR("Panfrost Project Developers"); 730 MODULE_DESCRIPTION("Panfrost DRM Driver"); 731 MODULE_LICENSE("GPL v2"); 732