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
panfrost_ioctl_get_param(struct drm_device * ddev,void * data,struct drm_file * file)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
panfrost_ioctl_create_bo(struct drm_device * dev,void * data,struct drm_file * file)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
panfrost_lookup_bos(struct drm_device * dev,struct drm_file * file_priv,struct drm_panfrost_submit * args,struct panfrost_job * job)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
panfrost_copy_in_sync(struct drm_device * dev,struct drm_file * file_priv,struct drm_panfrost_submit * args,struct panfrost_job * job)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_gem_fence_array_add(&job->deps, fence);
231
232 if (ret)
233 goto fail;
234 }
235
236 fail:
237 kvfree(handles);
238 return ret;
239 }
240
panfrost_ioctl_submit(struct drm_device * dev,void * data,struct drm_file * file)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 drm_panfrost_submit *args = data;
246 struct drm_syncobj *sync_out = NULL;
247 struct panfrost_job *job;
248 int ret = 0;
249
250 if (!args->jc)
251 return -EINVAL;
252
253 if (args->requirements && args->requirements != PANFROST_JD_REQ_FS)
254 return -EINVAL;
255
256 if (args->out_sync > 0) {
257 sync_out = drm_syncobj_find(file, args->out_sync);
258 if (!sync_out)
259 return -ENODEV;
260 }
261
262 job = kzalloc(sizeof(*job), GFP_KERNEL);
263 if (!job) {
264 ret = -ENOMEM;
265 goto fail_out_sync;
266 }
267
268 kref_init(&job->refcount);
269
270 xa_init_flags(&job->deps, XA_FLAGS_ALLOC);
271
272 job->pfdev = pfdev;
273 job->jc = args->jc;
274 job->requirements = args->requirements;
275 job->flush_id = panfrost_gpu_get_latest_flush_id(pfdev);
276 job->file_priv = file->driver_priv;
277
278 ret = panfrost_copy_in_sync(dev, file, args, job);
279 if (ret)
280 goto fail_job;
281
282 ret = panfrost_lookup_bos(dev, file, args, job);
283 if (ret)
284 goto fail_job;
285
286 ret = panfrost_job_push(job);
287 if (ret)
288 goto fail_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 fail_job:
295 panfrost_job_put(job);
296 fail_out_sync:
297 if (sync_out)
298 drm_syncobj_put(sync_out);
299
300 return ret;
301 }
302
303 static int
panfrost_ioctl_wait_bo(struct drm_device * dev,void * data,struct drm_file * file_priv)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
panfrost_ioctl_mmap_bo(struct drm_device * dev,void * data,struct drm_file * file_priv)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
panfrost_ioctl_get_bo_offset(struct drm_device * dev,void * data,struct drm_file * file_priv)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
panfrost_ioctl_madvise(struct drm_device * dev,void * data,struct drm_file * file_priv)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_move_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
panfrost_unstable_ioctl_check(void)448 int panfrost_unstable_ioctl_check(void)
449 {
450 if (!unstable_ioctls)
451 return -ENOSYS;
452
453 return 0;
454 }
455
456 static int
panfrost_open(struct drm_device * dev,struct drm_file * file)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
panfrost_postclose(struct drm_device * dev,struct drm_file * file)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
panfrost_probe(struct platform_device * pdev)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
panfrost_remove(struct platform_device * pdev)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 const char * const mediatek_mt8183_supplies[] = { "mali", "sram" };
642 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