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