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 86 if (!args->size || args->pad || 87 (args->flags & ~(PANFROST_BO_NOEXEC | PANFROST_BO_HEAP))) 88 return -EINVAL; 89 90 /* Heaps should never be executable */ 91 if ((args->flags & PANFROST_BO_HEAP) && 92 !(args->flags & PANFROST_BO_NOEXEC)) 93 return -EINVAL; 94 95 bo = panfrost_gem_create_with_handle(file, dev, args->size, args->flags, 96 &args->handle); 97 if (IS_ERR(bo)) 98 return PTR_ERR(bo); 99 100 mapping = panfrost_gem_mapping_get(bo, priv); 101 if (!mapping) { 102 drm_gem_object_put(&bo->base.base); 103 return -EINVAL; 104 } 105 106 args->offset = mapping->mmnode.start << PAGE_SHIFT; 107 panfrost_gem_mapping_put(mapping); 108 109 return 0; 110 } 111 112 /** 113 * panfrost_lookup_bos() - Sets up job->bo[] with the GEM objects 114 * referenced by the job. 115 * @dev: DRM device 116 * @file_priv: DRM file for this fd 117 * @args: IOCTL args 118 * @job: job being set up 119 * 120 * Resolve handles from userspace to BOs and attach them to job. 121 * 122 * Note that this function doesn't need to unreference the BOs on 123 * failure, because that will happen at panfrost_job_cleanup() time. 124 */ 125 static int 126 panfrost_lookup_bos(struct drm_device *dev, 127 struct drm_file *file_priv, 128 struct drm_panfrost_submit *args, 129 struct panfrost_job *job) 130 { 131 struct panfrost_file_priv *priv = file_priv->driver_priv; 132 struct panfrost_gem_object *bo; 133 unsigned int i; 134 int ret; 135 136 job->bo_count = args->bo_handle_count; 137 138 if (!job->bo_count) 139 return 0; 140 141 job->implicit_fences = kvmalloc_array(job->bo_count, 142 sizeof(struct dma_fence *), 143 GFP_KERNEL | __GFP_ZERO); 144 if (!job->implicit_fences) 145 return -ENOMEM; 146 147 ret = drm_gem_objects_lookup(file_priv, 148 (void __user *)(uintptr_t)args->bo_handles, 149 job->bo_count, &job->bos); 150 if (ret) 151 return ret; 152 153 job->mappings = kvmalloc_array(job->bo_count, 154 sizeof(struct panfrost_gem_mapping *), 155 GFP_KERNEL | __GFP_ZERO); 156 if (!job->mappings) 157 return -ENOMEM; 158 159 for (i = 0; i < job->bo_count; i++) { 160 struct panfrost_gem_mapping *mapping; 161 162 bo = to_panfrost_bo(job->bos[i]); 163 mapping = panfrost_gem_mapping_get(bo, priv); 164 if (!mapping) { 165 ret = -EINVAL; 166 break; 167 } 168 169 atomic_inc(&bo->gpu_usecount); 170 job->mappings[i] = mapping; 171 } 172 173 return ret; 174 } 175 176 /** 177 * panfrost_copy_in_sync() - Sets up job->in_fences[] with the sync objects 178 * referenced by the job. 179 * @dev: DRM device 180 * @file_priv: DRM file for this fd 181 * @args: IOCTL args 182 * @job: job being set up 183 * 184 * Resolve syncobjs from userspace to fences and attach them to job. 185 * 186 * Note that this function doesn't need to unreference the fences on 187 * failure, because that will happen at panfrost_job_cleanup() time. 188 */ 189 static int 190 panfrost_copy_in_sync(struct drm_device *dev, 191 struct drm_file *file_priv, 192 struct drm_panfrost_submit *args, 193 struct panfrost_job *job) 194 { 195 u32 *handles; 196 int ret = 0; 197 int i; 198 199 job->in_fence_count = args->in_sync_count; 200 201 if (!job->in_fence_count) 202 return 0; 203 204 job->in_fences = kvmalloc_array(job->in_fence_count, 205 sizeof(struct dma_fence *), 206 GFP_KERNEL | __GFP_ZERO); 207 if (!job->in_fences) { 208 DRM_DEBUG("Failed to allocate job in fences\n"); 209 return -ENOMEM; 210 } 211 212 handles = kvmalloc_array(job->in_fence_count, sizeof(u32), GFP_KERNEL); 213 if (!handles) { 214 ret = -ENOMEM; 215 DRM_DEBUG("Failed to allocate incoming syncobj handles\n"); 216 goto fail; 217 } 218 219 if (copy_from_user(handles, 220 (void __user *)(uintptr_t)args->in_syncs, 221 job->in_fence_count * sizeof(u32))) { 222 ret = -EFAULT; 223 DRM_DEBUG("Failed to copy in syncobj handles\n"); 224 goto fail; 225 } 226 227 for (i = 0; i < job->in_fence_count; i++) { 228 ret = drm_syncobj_find_fence(file_priv, handles[i], 0, 0, 229 &job->in_fences[i]); 230 if (ret == -EINVAL) 231 goto fail; 232 } 233 234 fail: 235 kvfree(handles); 236 return ret; 237 } 238 239 static int panfrost_ioctl_submit(struct drm_device *dev, void *data, 240 struct drm_file *file) 241 { 242 struct panfrost_device *pfdev = dev->dev_private; 243 struct drm_panfrost_submit *args = data; 244 struct drm_syncobj *sync_out = NULL; 245 struct panfrost_job *job; 246 int ret = 0; 247 248 if (!args->jc) 249 return -EINVAL; 250 251 if (args->requirements && args->requirements != PANFROST_JD_REQ_FS) 252 return -EINVAL; 253 254 if (args->out_sync > 0) { 255 sync_out = drm_syncobj_find(file, args->out_sync); 256 if (!sync_out) 257 return -ENODEV; 258 } 259 260 job = kzalloc(sizeof(*job), GFP_KERNEL); 261 if (!job) { 262 ret = -ENOMEM; 263 goto fail_out_sync; 264 } 265 266 kref_init(&job->refcount); 267 268 job->pfdev = pfdev; 269 job->jc = args->jc; 270 job->requirements = args->requirements; 271 job->flush_id = panfrost_gpu_get_latest_flush_id(pfdev); 272 job->file_priv = file->driver_priv; 273 274 ret = panfrost_copy_in_sync(dev, file, args, job); 275 if (ret) 276 goto fail_job; 277 278 ret = panfrost_lookup_bos(dev, file, args, job); 279 if (ret) 280 goto fail_job; 281 282 ret = panfrost_job_push(job); 283 if (ret) 284 goto fail_job; 285 286 /* Update the return sync object for the job */ 287 if (sync_out) 288 drm_syncobj_replace_fence(sync_out, job->render_done_fence); 289 290 fail_job: 291 panfrost_job_put(job); 292 fail_out_sync: 293 if (sync_out) 294 drm_syncobj_put(sync_out); 295 296 return ret; 297 } 298 299 static int 300 panfrost_ioctl_wait_bo(struct drm_device *dev, void *data, 301 struct drm_file *file_priv) 302 { 303 long ret; 304 struct drm_panfrost_wait_bo *args = data; 305 struct drm_gem_object *gem_obj; 306 unsigned long timeout = drm_timeout_abs_to_jiffies(args->timeout_ns); 307 308 if (args->pad) 309 return -EINVAL; 310 311 gem_obj = drm_gem_object_lookup(file_priv, args->handle); 312 if (!gem_obj) 313 return -ENOENT; 314 315 ret = dma_resv_wait_timeout(gem_obj->resv, true, 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 * - 1.2 - adds AFBC_FEATURES query 551 */ 552 static const struct drm_driver panfrost_drm_driver = { 553 .driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ, 554 .open = panfrost_open, 555 .postclose = panfrost_postclose, 556 .ioctls = panfrost_drm_driver_ioctls, 557 .num_ioctls = ARRAY_SIZE(panfrost_drm_driver_ioctls), 558 .fops = &panfrost_drm_driver_fops, 559 .name = "panfrost", 560 .desc = "panfrost DRM", 561 .date = "20180908", 562 .major = 1, 563 .minor = 2, 564 565 .gem_create_object = panfrost_gem_create_object, 566 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 567 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 568 .gem_prime_import_sg_table = panfrost_gem_prime_import_sg_table, 569 .gem_prime_mmap = drm_gem_prime_mmap, 570 }; 571 572 static int panfrost_probe(struct platform_device *pdev) 573 { 574 struct panfrost_device *pfdev; 575 struct drm_device *ddev; 576 int err; 577 578 pfdev = devm_kzalloc(&pdev->dev, sizeof(*pfdev), GFP_KERNEL); 579 if (!pfdev) 580 return -ENOMEM; 581 582 pfdev->pdev = pdev; 583 pfdev->dev = &pdev->dev; 584 585 platform_set_drvdata(pdev, pfdev); 586 587 pfdev->comp = of_device_get_match_data(&pdev->dev); 588 if (!pfdev->comp) 589 return -ENODEV; 590 591 pfdev->coherent = device_get_dma_attr(&pdev->dev) == DEV_DMA_COHERENT; 592 593 /* Allocate and initialze the DRM device. */ 594 ddev = drm_dev_alloc(&panfrost_drm_driver, &pdev->dev); 595 if (IS_ERR(ddev)) 596 return PTR_ERR(ddev); 597 598 ddev->dev_private = pfdev; 599 pfdev->ddev = ddev; 600 601 mutex_init(&pfdev->shrinker_lock); 602 INIT_LIST_HEAD(&pfdev->shrinker_list); 603 604 err = panfrost_device_init(pfdev); 605 if (err) { 606 if (err != -EPROBE_DEFER) 607 dev_err(&pdev->dev, "Fatal error during GPU init\n"); 608 goto err_out0; 609 } 610 611 pm_runtime_set_active(pfdev->dev); 612 pm_runtime_mark_last_busy(pfdev->dev); 613 pm_runtime_enable(pfdev->dev); 614 pm_runtime_set_autosuspend_delay(pfdev->dev, 50); /* ~3 frames */ 615 pm_runtime_use_autosuspend(pfdev->dev); 616 617 /* 618 * Register the DRM device with the core and the connectors with 619 * sysfs 620 */ 621 err = drm_dev_register(ddev, 0); 622 if (err < 0) 623 goto err_out1; 624 625 panfrost_gem_shrinker_init(ddev); 626 627 return 0; 628 629 err_out1: 630 pm_runtime_disable(pfdev->dev); 631 panfrost_device_fini(pfdev); 632 pm_runtime_set_suspended(pfdev->dev); 633 err_out0: 634 drm_dev_put(ddev); 635 return err; 636 } 637 638 static int panfrost_remove(struct platform_device *pdev) 639 { 640 struct panfrost_device *pfdev = platform_get_drvdata(pdev); 641 struct drm_device *ddev = pfdev->ddev; 642 643 drm_dev_unregister(ddev); 644 panfrost_gem_shrinker_cleanup(ddev); 645 646 pm_runtime_get_sync(pfdev->dev); 647 pm_runtime_disable(pfdev->dev); 648 panfrost_device_fini(pfdev); 649 pm_runtime_set_suspended(pfdev->dev); 650 651 drm_dev_put(ddev); 652 return 0; 653 } 654 655 static const char * const default_supplies[] = { "mali" }; 656 static const struct panfrost_compatible default_data = { 657 .num_supplies = ARRAY_SIZE(default_supplies), 658 .supply_names = default_supplies, 659 .num_pm_domains = 1, /* optional */ 660 .pm_domain_names = NULL, 661 }; 662 663 static const struct panfrost_compatible amlogic_data = { 664 .num_supplies = ARRAY_SIZE(default_supplies), 665 .supply_names = default_supplies, 666 .vendor_quirk = panfrost_gpu_amlogic_quirk, 667 }; 668 669 const char * const mediatek_mt8183_supplies[] = { "mali", "sram" }; 670 const char * const mediatek_mt8183_pm_domains[] = { "core0", "core1", "core2" }; 671 static const struct panfrost_compatible mediatek_mt8183_data = { 672 .num_supplies = ARRAY_SIZE(mediatek_mt8183_supplies), 673 .supply_names = mediatek_mt8183_supplies, 674 .num_pm_domains = ARRAY_SIZE(mediatek_mt8183_pm_domains), 675 .pm_domain_names = mediatek_mt8183_pm_domains, 676 }; 677 678 static const struct of_device_id dt_match[] = { 679 /* Set first to probe before the generic compatibles */ 680 { .compatible = "amlogic,meson-gxm-mali", 681 .data = &amlogic_data, }, 682 { .compatible = "amlogic,meson-g12a-mali", 683 .data = &amlogic_data, }, 684 { .compatible = "arm,mali-t604", .data = &default_data, }, 685 { .compatible = "arm,mali-t624", .data = &default_data, }, 686 { .compatible = "arm,mali-t628", .data = &default_data, }, 687 { .compatible = "arm,mali-t720", .data = &default_data, }, 688 { .compatible = "arm,mali-t760", .data = &default_data, }, 689 { .compatible = "arm,mali-t820", .data = &default_data, }, 690 { .compatible = "arm,mali-t830", .data = &default_data, }, 691 { .compatible = "arm,mali-t860", .data = &default_data, }, 692 { .compatible = "arm,mali-t880", .data = &default_data, }, 693 { .compatible = "arm,mali-bifrost", .data = &default_data, }, 694 { .compatible = "mediatek,mt8183-mali", .data = &mediatek_mt8183_data }, 695 {} 696 }; 697 MODULE_DEVICE_TABLE(of, dt_match); 698 699 static const struct dev_pm_ops panfrost_pm_ops = { 700 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) 701 SET_RUNTIME_PM_OPS(panfrost_device_suspend, panfrost_device_resume, NULL) 702 }; 703 704 static struct platform_driver panfrost_driver = { 705 .probe = panfrost_probe, 706 .remove = panfrost_remove, 707 .driver = { 708 .name = "panfrost", 709 .pm = &panfrost_pm_ops, 710 .of_match_table = dt_match, 711 }, 712 }; 713 module_platform_driver(panfrost_driver); 714 715 MODULE_AUTHOR("Panfrost Project Developers"); 716 MODULE_DESCRIPTION("Panfrost DRM Driver"); 717 MODULE_LICENSE("GPL v2"); 718