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.h> 8#include <linux/pagemap.h> 9#include <linux/platform_device.h> 10#include <linux/pm_runtime.h> 11#include <drm/panfrost_drm.h> 12#include <drm/drm_drv.h> 13#include <drm/drm_ioctl.h> 14#include <drm/drm_syncobj.h> 15#include <drm/drm_utils.h> 16 17#include "panfrost_device.h" 18#include "panfrost_gem.h" 19#include "panfrost_mmu.h" 20#include "panfrost_job.h" 21#include "panfrost_gpu.h" 22#include "panfrost_perfcnt.h" 23 24static bool unstable_ioctls; 25module_param_unsafe(unstable_ioctls, bool, 0600); 26 27static int panfrost_ioctl_get_param(struct drm_device *ddev, void *data, struct drm_file *file) 28{ 29 struct drm_panfrost_get_param *param = data; 30 struct panfrost_device *pfdev = ddev->dev_private; 31 32 if (param->pad != 0) 33 return -EINVAL; 34 35#define PANFROST_FEATURE(name, member) \ 36 case DRM_PANFROST_PARAM_ ## name: \ 37 param->value = pfdev->features.member; \ 38 break 39#define PANFROST_FEATURE_ARRAY(name, member, max) \ 40 case DRM_PANFROST_PARAM_ ## name ## 0 ... \ 41 DRM_PANFROST_PARAM_ ## name ## max: \ 42 param->value = pfdev->features.member[param->param - \ 43 DRM_PANFROST_PARAM_ ## name ## 0]; \ 44 break 45 46 switch (param->param) { 47 PANFROST_FEATURE(GPU_PROD_ID, id); 48 PANFROST_FEATURE(GPU_REVISION, revision); 49 PANFROST_FEATURE(SHADER_PRESENT, shader_present); 50 PANFROST_FEATURE(TILER_PRESENT, tiler_present); 51 PANFROST_FEATURE(L2_PRESENT, l2_present); 52 PANFROST_FEATURE(STACK_PRESENT, stack_present); 53 PANFROST_FEATURE(AS_PRESENT, as_present); 54 PANFROST_FEATURE(JS_PRESENT, js_present); 55 PANFROST_FEATURE(L2_FEATURES, l2_features); 56 PANFROST_FEATURE(CORE_FEATURES, core_features); 57 PANFROST_FEATURE(TILER_FEATURES, tiler_features); 58 PANFROST_FEATURE(MEM_FEATURES, mem_features); 59 PANFROST_FEATURE(MMU_FEATURES, mmu_features); 60 PANFROST_FEATURE(THREAD_FEATURES, thread_features); 61 PANFROST_FEATURE(MAX_THREADS, max_threads); 62 PANFROST_FEATURE(THREAD_MAX_WORKGROUP_SZ, 63 thread_max_workgroup_sz); 64 PANFROST_FEATURE(THREAD_MAX_BARRIER_SZ, 65 thread_max_barrier_sz); 66 PANFROST_FEATURE(COHERENCY_FEATURES, coherency_features); 67 PANFROST_FEATURE(AFBC_FEATURES, afbc_features); 68 PANFROST_FEATURE_ARRAY(TEXTURE_FEATURES, texture_features, 3); 69 PANFROST_FEATURE_ARRAY(JS_FEATURES, js_features, 15); 70 PANFROST_FEATURE(NR_CORE_GROUPS, nr_core_groups); 71 PANFROST_FEATURE(THREAD_TLS_ALLOC, thread_tls_alloc); 72 default: 73 return -EINVAL; 74 } 75 76 return 0; 77} 78 79static int panfrost_ioctl_create_bo(struct drm_device *dev, void *data, 80 struct drm_file *file) 81{ 82 struct panfrost_file_priv *priv = file->driver_priv; 83 struct panfrost_gem_object *bo; 84 struct drm_panfrost_create_bo *args = data; 85 struct panfrost_gem_mapping *mapping; 86 int ret; 87 88 if (!args->size || args->pad || 89 (args->flags & ~(PANFROST_BO_NOEXEC | PANFROST_BO_HEAP))) 90 return -EINVAL; 91 92 /* Heaps should never be executable */ 93 if ((args->flags & PANFROST_BO_HEAP) && 94 !(args->flags & PANFROST_BO_NOEXEC)) 95 return -EINVAL; 96 97 bo = panfrost_gem_create(dev, args->size, args->flags); 98 if (IS_ERR(bo)) 99 return PTR_ERR(bo); 100 101 ret = drm_gem_handle_create(file, &bo->base.base, &args->handle); 102 if (ret) 103 goto out; 104 105 mapping = panfrost_gem_mapping_get(bo, priv); 106 if (mapping) { 107 args->offset = mapping->mmnode.start << PAGE_SHIFT; 108 panfrost_gem_mapping_put(mapping); 109 } else { 110 /* This can only happen if the handle from 111 * drm_gem_handle_create() has already been guessed and freed 112 * by user space 113 */ 114 ret = -EINVAL; 115 } 116 117out: 118 drm_gem_object_put(&bo->base.base); 119 return ret; 120} 121 122/** 123 * panfrost_lookup_bos() - Sets up job->bo[] with the GEM objects 124 * referenced by the job. 125 * @dev: DRM device 126 * @file_priv: DRM file for this fd 127 * @args: IOCTL args 128 * @job: job being set up 129 * 130 * Resolve handles from userspace to BOs and attach them to job. 131 * 132 * Note that this function doesn't need to unreference the BOs on 133 * failure, because that will happen at panfrost_job_cleanup() time. 134 */ 135static int 136panfrost_lookup_bos(struct drm_device *dev, 137 struct drm_file *file_priv, 138 struct drm_panfrost_submit *args, 139 struct panfrost_job *job) 140{ 141 struct panfrost_file_priv *priv = file_priv->driver_priv; 142 struct panfrost_gem_object *bo; 143 unsigned int i; 144 int ret; 145 146 job->bo_count = args->bo_handle_count; 147 148 if (!job->bo_count) 149 return 0; 150 151 ret = drm_gem_objects_lookup(file_priv, 152 (void __user *)(uintptr_t)args->bo_handles, 153 job->bo_count, &job->bos); 154 if (ret) 155 return ret; 156 157 job->mappings = kvmalloc_array(job->bo_count, 158 sizeof(struct panfrost_gem_mapping *), 159 GFP_KERNEL | __GFP_ZERO); 160 if (!job->mappings) 161 return -ENOMEM; 162 163 for (i = 0; i < job->bo_count; i++) { 164 struct panfrost_gem_mapping *mapping; 165 166 bo = to_panfrost_bo(job->bos[i]); 167 mapping = panfrost_gem_mapping_get(bo, priv); 168 if (!mapping) { 169 ret = -EINVAL; 170 break; 171 } 172 173 atomic_inc(&bo->gpu_usecount); 174 job->mappings[i] = mapping; 175 } 176 177 return ret; 178} 179 180/** 181 * panfrost_copy_in_sync() - Sets up job->deps with the sync objects 182 * referenced by the job. 183 * @dev: DRM device 184 * @file_priv: DRM file for this fd 185 * @args: IOCTL args 186 * @job: job being set up 187 * 188 * Resolve syncobjs from userspace to fences and attach them to job. 189 * 190 * Note that this function doesn't need to unreference the fences on 191 * failure, because that will happen at panfrost_job_cleanup() time. 192 */ 193static int 194panfrost_copy_in_sync(struct drm_device *dev, 195 struct drm_file *file_priv, 196 struct drm_panfrost_submit *args, 197 struct panfrost_job *job) 198{ 199 u32 *handles; 200 int ret = 0; 201 int i, in_fence_count; 202 203 in_fence_count = args->in_sync_count; 204 205 if (!in_fence_count) 206 return 0; 207 208 handles = kvmalloc_array(in_fence_count, sizeof(u32), GFP_KERNEL); 209 if (!handles) { 210 ret = -ENOMEM; 211 DRM_DEBUG("Failed to allocate incoming syncobj handles\n"); 212 goto fail; 213 } 214 215 if (copy_from_user(handles, 216 (void __user *)(uintptr_t)args->in_syncs, 217 in_fence_count * sizeof(u32))) { 218 ret = -EFAULT; 219 DRM_DEBUG("Failed to copy in syncobj handles\n"); 220 goto fail; 221 } 222 223 for (i = 0; i < in_fence_count; i++) { 224 ret = drm_sched_job_add_syncobj_dependency(&job->base, file_priv, 225 handles[i], 0); 226 if (ret) 227 goto fail; 228 } 229 230fail: 231 kvfree(handles); 232 return ret; 233} 234 235static int panfrost_ioctl_submit(struct drm_device *dev, void *data, 236 struct drm_file *file) 237{ 238 struct panfrost_device *pfdev = dev->dev_private; 239 struct panfrost_file_priv *file_priv = file->driver_priv; 240 struct drm_panfrost_submit *args = data; 241 struct drm_syncobj *sync_out = NULL; 242 struct panfrost_job *job; 243 int ret = 0, slot; 244 245 if (!args->jc) 246 return -EINVAL; 247 248 if (args->requirements && args->requirements != PANFROST_JD_REQ_FS) 249 return -EINVAL; 250 251 if (args->out_sync > 0) { 252 sync_out = drm_syncobj_find(file, args->out_sync); 253 if (!sync_out) 254 return -ENODEV; 255 } 256 257 job = kzalloc(sizeof(*job), GFP_KERNEL); 258 if (!job) { 259 ret = -ENOMEM; 260 goto out_put_syncout; 261 } 262 263 kref_init(&job->refcount); 264 265 job->pfdev = pfdev; 266 job->jc = args->jc; 267 job->requirements = args->requirements; 268 job->flush_id = panfrost_gpu_get_latest_flush_id(pfdev); 269 job->mmu = file_priv->mmu; 270 271 slot = panfrost_job_get_slot(job); 272 273 ret = drm_sched_job_init(&job->base, 274 &file_priv->sched_entity[slot], 275 NULL); 276 if (ret) 277 goto out_put_job; 278 279 ret = panfrost_copy_in_sync(dev, file, args, job); 280 if (ret) 281 goto out_cleanup_job; 282 283 ret = panfrost_lookup_bos(dev, file, args, job); 284 if (ret) 285 goto out_cleanup_job; 286 287 ret = panfrost_job_push(job); 288 if (ret) 289 goto out_cleanup_job; 290 291 /* Update the return sync object for the job */ 292 if (sync_out) 293 drm_syncobj_replace_fence(sync_out, job->render_done_fence); 294 295out_cleanup_job: 296 if (ret) 297 drm_sched_job_cleanup(&job->base); 298out_put_job: 299 panfrost_job_put(job); 300out_put_syncout: 301 if (sync_out) 302 drm_syncobj_put(sync_out); 303 304 return ret; 305} 306 307static int 308panfrost_ioctl_wait_bo(struct drm_device *dev, void *data, 309 struct drm_file *file_priv) 310{ 311 long ret; 312 struct drm_panfrost_wait_bo *args = data; 313 struct drm_gem_object *gem_obj; 314 unsigned long timeout = drm_timeout_abs_to_jiffies(args->timeout_ns); 315 316 if (args->pad) 317 return -EINVAL; 318 319 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 320 if (!gem_obj) 321 return -ENOENT; 322 323 ret = dma_resv_wait_timeout(gem_obj->resv, DMA_RESV_USAGE_READ, 324 true, timeout); 325 if (!ret) 326 ret = timeout ? -ETIMEDOUT : -EBUSY; 327 328 drm_gem_object_put(gem_obj); 329 330 return ret; 331} 332 333static int panfrost_ioctl_mmap_bo(struct drm_device *dev, void *data, 334 struct drm_file *file_priv) 335{ 336 struct drm_panfrost_mmap_bo *args = data; 337 struct drm_gem_object *gem_obj; 338 int ret; 339 340 if (args->flags != 0) { 341 DRM_INFO("unknown mmap_bo flags: %d\n", args->flags); 342 return -EINVAL; 343 } 344 345 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 346 if (!gem_obj) { 347 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 348 return -ENOENT; 349 } 350 351 /* Don't allow mmapping of heap objects as pages are not pinned. */ 352 if (to_panfrost_bo(gem_obj)->is_heap) { 353 ret = -EINVAL; 354 goto out; 355 } 356 357 ret = drm_gem_create_mmap_offset(gem_obj); 358 if (ret == 0) 359 args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node); 360 361out: 362 drm_gem_object_put(gem_obj); 363 return ret; 364} 365 366static int panfrost_ioctl_get_bo_offset(struct drm_device *dev, void *data, 367 struct drm_file *file_priv) 368{ 369 struct panfrost_file_priv *priv = file_priv->driver_priv; 370 struct drm_panfrost_get_bo_offset *args = data; 371 struct panfrost_gem_mapping *mapping; 372 struct drm_gem_object *gem_obj; 373 struct panfrost_gem_object *bo; 374 375 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 376 if (!gem_obj) { 377 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 378 return -ENOENT; 379 } 380 bo = to_panfrost_bo(gem_obj); 381 382 mapping = panfrost_gem_mapping_get(bo, priv); 383 drm_gem_object_put(gem_obj); 384 385 if (!mapping) 386 return -EINVAL; 387 388 args->offset = mapping->mmnode.start << PAGE_SHIFT; 389 panfrost_gem_mapping_put(mapping); 390 return 0; 391} 392 393static int panfrost_ioctl_madvise(struct drm_device *dev, void *data, 394 struct drm_file *file_priv) 395{ 396 struct panfrost_file_priv *priv = file_priv->driver_priv; 397 struct drm_panfrost_madvise *args = data; 398 struct panfrost_device *pfdev = dev->dev_private; 399 struct drm_gem_object *gem_obj; 400 struct panfrost_gem_object *bo; 401 int ret = 0; 402 403 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 404 if (!gem_obj) { 405 DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); 406 return -ENOENT; 407 } 408 409 bo = to_panfrost_bo(gem_obj); 410 411 ret = dma_resv_lock_interruptible(bo->base.base.resv, NULL); 412 if (ret) 413 goto out_put_object; 414 415 mutex_lock(&pfdev->shrinker_lock); 416 mutex_lock(&bo->mappings.lock); 417 if (args->madv == PANFROST_MADV_DONTNEED) { 418 struct panfrost_gem_mapping *first; 419 420 first = list_first_entry(&bo->mappings.list, 421 struct panfrost_gem_mapping, 422 node); 423 424 /* 425 * If we want to mark the BO purgeable, there must be only one 426 * user: the caller FD. 427 * We could do something smarter and mark the BO purgeable only 428 * when all its users have marked it purgeable, but globally 429 * visible/shared BOs are likely to never be marked purgeable 430 * anyway, so let's not bother. 431 */ 432 if (!list_is_singular(&bo->mappings.list) || 433 WARN_ON_ONCE(first->mmu != priv->mmu)) { 434 ret = -EINVAL; 435 goto out_unlock_mappings; 436 } 437 } 438 439 args->retained = drm_gem_shmem_madvise(&bo->base, args->madv); 440 441 if (args->retained) { 442 if (args->madv == PANFROST_MADV_DONTNEED) 443 list_move_tail(&bo->base.madv_list, 444 &pfdev->shrinker_list); 445 else if (args->madv == PANFROST_MADV_WILLNEED) 446 list_del_init(&bo->base.madv_list); 447 } 448 449out_unlock_mappings: 450 mutex_unlock(&bo->mappings.lock); 451 mutex_unlock(&pfdev->shrinker_lock); 452 dma_resv_unlock(bo->base.base.resv); 453out_put_object: 454 drm_gem_object_put(gem_obj); 455 return ret; 456} 457 458int panfrost_unstable_ioctl_check(void) 459{ 460 if (!unstable_ioctls) 461 return -ENOSYS; 462 463 return 0; 464} 465 466static int 467panfrost_open(struct drm_device *dev, struct drm_file *file) 468{ 469 int ret; 470 struct panfrost_device *pfdev = dev->dev_private; 471 struct panfrost_file_priv *panfrost_priv; 472 473 panfrost_priv = kzalloc(sizeof(*panfrost_priv), GFP_KERNEL); 474 if (!panfrost_priv) 475 return -ENOMEM; 476 477 panfrost_priv->pfdev = pfdev; 478 file->driver_priv = panfrost_priv; 479 480 panfrost_priv->mmu = panfrost_mmu_ctx_create(pfdev); 481 if (IS_ERR(panfrost_priv->mmu)) { 482 ret = PTR_ERR(panfrost_priv->mmu); 483 goto err_free; 484 } 485 486 ret = panfrost_job_open(panfrost_priv); 487 if (ret) 488 goto err_job; 489 490 return 0; 491 492err_job: 493 panfrost_mmu_ctx_put(panfrost_priv->mmu); 494err_free: 495 kfree(panfrost_priv); 496 return ret; 497} 498 499static void 500panfrost_postclose(struct drm_device *dev, struct drm_file *file) 501{ 502 struct panfrost_file_priv *panfrost_priv = file->driver_priv; 503 504 panfrost_perfcnt_close(file); 505 panfrost_job_close(panfrost_priv); 506 507 panfrost_mmu_ctx_put(panfrost_priv->mmu); 508 kfree(panfrost_priv); 509} 510 511static const struct drm_ioctl_desc panfrost_drm_driver_ioctls[] = { 512#define PANFROST_IOCTL(n, func, flags) \ 513 DRM_IOCTL_DEF_DRV(PANFROST_##n, panfrost_ioctl_##func, flags) 514 515 PANFROST_IOCTL(SUBMIT, submit, DRM_RENDER_ALLOW), 516 PANFROST_IOCTL(WAIT_BO, wait_bo, DRM_RENDER_ALLOW), 517 PANFROST_IOCTL(CREATE_BO, create_bo, DRM_RENDER_ALLOW), 518 PANFROST_IOCTL(MMAP_BO, mmap_bo, DRM_RENDER_ALLOW), 519 PANFROST_IOCTL(GET_PARAM, get_param, DRM_RENDER_ALLOW), 520 PANFROST_IOCTL(GET_BO_OFFSET, get_bo_offset, DRM_RENDER_ALLOW), 521 PANFROST_IOCTL(PERFCNT_ENABLE, perfcnt_enable, DRM_RENDER_ALLOW), 522 PANFROST_IOCTL(PERFCNT_DUMP, perfcnt_dump, DRM_RENDER_ALLOW), 523 PANFROST_IOCTL(MADVISE, madvise, DRM_RENDER_ALLOW), 524}; 525 526DEFINE_DRM_GEM_FOPS(panfrost_drm_driver_fops); 527 528/* 529 * Panfrost driver version: 530 * - 1.0 - initial interface 531 * - 1.1 - adds HEAP and NOEXEC flags for CREATE_BO 532 * - 1.2 - adds AFBC_FEATURES query 533 */ 534static const struct drm_driver panfrost_drm_driver = { 535 .driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ, 536 .open = panfrost_open, 537 .postclose = panfrost_postclose, 538 .ioctls = panfrost_drm_driver_ioctls, 539 .num_ioctls = ARRAY_SIZE(panfrost_drm_driver_ioctls), 540 .fops = &panfrost_drm_driver_fops, 541 .name = "panfrost", 542 .desc = "panfrost DRM", 543 .date = "20180908", 544 .major = 1, 545 .minor = 2, 546 547 .gem_create_object = panfrost_gem_create_object, 548 .gem_prime_import_sg_table = panfrost_gem_prime_import_sg_table, 549}; 550 551static int panfrost_probe(struct platform_device *pdev) 552{ 553 struct panfrost_device *pfdev; 554 struct drm_device *ddev; 555 int err; 556 557 pfdev = devm_kzalloc(&pdev->dev, sizeof(*pfdev), GFP_KERNEL); 558 if (!pfdev) 559 return -ENOMEM; 560 561 pfdev->pdev = pdev; 562 pfdev->dev = &pdev->dev; 563 564 platform_set_drvdata(pdev, pfdev); 565 566 pfdev->comp = of_device_get_match_data(&pdev->dev); 567 if (!pfdev->comp) 568 return -ENODEV; 569 570 pfdev->coherent = device_get_dma_attr(&pdev->dev) == DEV_DMA_COHERENT; 571 572 /* Allocate and initialize the DRM device. */ 573 ddev = drm_dev_alloc(&panfrost_drm_driver, &pdev->dev); 574 if (IS_ERR(ddev)) 575 return PTR_ERR(ddev); 576 577 ddev->dev_private = pfdev; 578 pfdev->ddev = ddev; 579 580 mutex_init(&pfdev->shrinker_lock); 581 INIT_LIST_HEAD(&pfdev->shrinker_list); 582 583 err = panfrost_device_init(pfdev); 584 if (err) { 585 if (err != -EPROBE_DEFER) 586 dev_err(&pdev->dev, "Fatal error during GPU init\n"); 587 goto err_out0; 588 } 589 590 pm_runtime_set_active(pfdev->dev); 591 pm_runtime_mark_last_busy(pfdev->dev); 592 pm_runtime_enable(pfdev->dev); 593 pm_runtime_set_autosuspend_delay(pfdev->dev, 50); /* ~3 frames */ 594 pm_runtime_use_autosuspend(pfdev->dev); 595 596 /* 597 * Register the DRM device with the core and the connectors with 598 * sysfs 599 */ 600 err = drm_dev_register(ddev, 0); 601 if (err < 0) 602 goto err_out1; 603 604 panfrost_gem_shrinker_init(ddev); 605 606 return 0; 607 608err_out1: 609 pm_runtime_disable(pfdev->dev); 610 panfrost_device_fini(pfdev); 611 pm_runtime_set_suspended(pfdev->dev); 612err_out0: 613 drm_dev_put(ddev); 614 return err; 615} 616 617static void panfrost_remove(struct platform_device *pdev) 618{ 619 struct panfrost_device *pfdev = platform_get_drvdata(pdev); 620 struct drm_device *ddev = pfdev->ddev; 621 622 drm_dev_unregister(ddev); 623 panfrost_gem_shrinker_cleanup(ddev); 624 625 pm_runtime_get_sync(pfdev->dev); 626 pm_runtime_disable(pfdev->dev); 627 panfrost_device_fini(pfdev); 628 pm_runtime_set_suspended(pfdev->dev); 629 630 drm_dev_put(ddev); 631} 632 633/* 634 * The OPP core wants the supply names to be NULL terminated, but we need the 635 * correct num_supplies value for regulator core. Hence, we NULL terminate here 636 * and then initialize num_supplies with ARRAY_SIZE - 1. 637 */ 638static const char * const default_supplies[] = { "mali", NULL }; 639static const struct panfrost_compatible default_data = { 640 .num_supplies = ARRAY_SIZE(default_supplies) - 1, 641 .supply_names = default_supplies, 642 .num_pm_domains = 1, /* optional */ 643 .pm_domain_names = NULL, 644}; 645 646static const struct panfrost_compatible amlogic_data = { 647 .num_supplies = ARRAY_SIZE(default_supplies) - 1, 648 .supply_names = default_supplies, 649 .vendor_quirk = panfrost_gpu_amlogic_quirk, 650}; 651 652/* 653 * The old data with two power supplies for MT8183 is here only to 654 * keep retro-compatibility with older devicetrees, as DVFS will 655 * not work with this one. 656 * 657 * On new devicetrees please use the _b variant with a single and 658 * coupled regulators instead. 659 */ 660static const char * const mediatek_mt8183_supplies[] = { "mali", "sram", NULL }; 661static const char * const mediatek_mt8183_pm_domains[] = { "core0", "core1", "core2" }; 662static const struct panfrost_compatible mediatek_mt8183_data = { 663 .num_supplies = ARRAY_SIZE(mediatek_mt8183_supplies) - 1, 664 .supply_names = mediatek_mt8183_supplies, 665 .num_pm_domains = ARRAY_SIZE(mediatek_mt8183_pm_domains), 666 .pm_domain_names = mediatek_mt8183_pm_domains, 667}; 668 669static const char * const mediatek_mt8183_b_supplies[] = { "mali", NULL }; 670static const struct panfrost_compatible mediatek_mt8183_b_data = { 671 .num_supplies = ARRAY_SIZE(mediatek_mt8183_b_supplies) - 1, 672 .supply_names = mediatek_mt8183_b_supplies, 673 .num_pm_domains = ARRAY_SIZE(mediatek_mt8183_pm_domains), 674 .pm_domain_names = mediatek_mt8183_pm_domains, 675}; 676 677static const char * const mediatek_mt8186_pm_domains[] = { "core0", "core1" }; 678static const struct panfrost_compatible mediatek_mt8186_data = { 679 .num_supplies = ARRAY_SIZE(mediatek_mt8183_b_supplies) - 1, 680 .supply_names = mediatek_mt8183_b_supplies, 681 .num_pm_domains = ARRAY_SIZE(mediatek_mt8186_pm_domains), 682 .pm_domain_names = mediatek_mt8186_pm_domains, 683}; 684 685static const char * const mediatek_mt8192_supplies[] = { "mali", NULL }; 686static const char * const mediatek_mt8192_pm_domains[] = { "core0", "core1", "core2", 687 "core3", "core4" }; 688static const struct panfrost_compatible mediatek_mt8192_data = { 689 .num_supplies = ARRAY_SIZE(mediatek_mt8192_supplies) - 1, 690 .supply_names = mediatek_mt8192_supplies, 691 .num_pm_domains = ARRAY_SIZE(mediatek_mt8192_pm_domains), 692 .pm_domain_names = mediatek_mt8192_pm_domains, 693}; 694 695static const struct of_device_id dt_match[] = { 696 /* Set first to probe before the generic compatibles */ 697 { .compatible = "amlogic,meson-gxm-mali", 698 .data = &amlogic_data, }, 699 { .compatible = "amlogic,meson-g12a-mali", 700 .data = &amlogic_data, }, 701 { .compatible = "arm,mali-t604", .data = &default_data, }, 702 { .compatible = "arm,mali-t624", .data = &default_data, }, 703 { .compatible = "arm,mali-t628", .data = &default_data, }, 704 { .compatible = "arm,mali-t720", .data = &default_data, }, 705 { .compatible = "arm,mali-t760", .data = &default_data, }, 706 { .compatible = "arm,mali-t820", .data = &default_data, }, 707 { .compatible = "arm,mali-t830", .data = &default_data, }, 708 { .compatible = "arm,mali-t860", .data = &default_data, }, 709 { .compatible = "arm,mali-t880", .data = &default_data, }, 710 { .compatible = "arm,mali-bifrost", .data = &default_data, }, 711 { .compatible = "arm,mali-valhall-jm", .data = &default_data, }, 712 { .compatible = "mediatek,mt8183-mali", .data = &mediatek_mt8183_data }, 713 { .compatible = "mediatek,mt8183b-mali", .data = &mediatek_mt8183_b_data }, 714 { .compatible = "mediatek,mt8186-mali", .data = &mediatek_mt8186_data }, 715 { .compatible = "mediatek,mt8192-mali", .data = &mediatek_mt8192_data }, 716 {} 717}; 718MODULE_DEVICE_TABLE(of, dt_match); 719 720static struct platform_driver panfrost_driver = { 721 .probe = panfrost_probe, 722 .remove_new = panfrost_remove, 723 .driver = { 724 .name = "panfrost", 725 .pm = pm_ptr(&panfrost_pm_ops), 726 .of_match_table = dt_match, 727 }, 728}; 729module_platform_driver(panfrost_driver); 730 731MODULE_AUTHOR("Panfrost Project Developers"); 732MODULE_DESCRIPTION("Panfrost DRM Driver"); 733MODULE_LICENSE("GPL v2"); 734