xref: /linux/drivers/gpu/drm/v3d/v3d_submit.c (revision 42b16d3ac371a2fac9b6f08fd75f23f34ba3955a)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2014-2018 Broadcom
4  * Copyright (C) 2023 Raspberry Pi
5  */
6 
7 #include <drm/drm_syncobj.h>
8 
9 #include "v3d_drv.h"
10 #include "v3d_regs.h"
11 #include "v3d_trace.h"
12 
13 /* Takes the reservation lock on all the BOs being referenced, so that
14  * at queue submit time we can update the reservations.
15  *
16  * We don't lock the RCL the tile alloc/state BOs, or overflow memory
17  * (all of which are on exec->unref_list).  They're entirely private
18  * to v3d, so we don't attach dma-buf fences to them.
19  */
20 static int
v3d_lock_bo_reservations(struct v3d_job * job,struct ww_acquire_ctx * acquire_ctx)21 v3d_lock_bo_reservations(struct v3d_job *job,
22 			 struct ww_acquire_ctx *acquire_ctx)
23 {
24 	int i, ret;
25 
26 	ret = drm_gem_lock_reservations(job->bo, job->bo_count, acquire_ctx);
27 	if (ret)
28 		return ret;
29 
30 	for (i = 0; i < job->bo_count; i++) {
31 		ret = dma_resv_reserve_fences(job->bo[i]->resv, 1);
32 		if (ret)
33 			goto fail;
34 
35 		ret = drm_sched_job_add_implicit_dependencies(&job->base,
36 							      job->bo[i], true);
37 		if (ret)
38 			goto fail;
39 	}
40 
41 	return 0;
42 
43 fail:
44 	drm_gem_unlock_reservations(job->bo, job->bo_count, acquire_ctx);
45 	return ret;
46 }
47 
48 /**
49  * v3d_lookup_bos() - Sets up job->bo[] with the GEM objects
50  * referenced by the job.
51  * @dev: DRM device
52  * @file_priv: DRM file for this fd
53  * @job: V3D job being set up
54  * @bo_handles: GEM handles
55  * @bo_count: Number of GEM handles passed in
56  *
57  * The command validator needs to reference BOs by their index within
58  * the submitted job's BO list.  This does the validation of the job's
59  * BO list and reference counting for the lifetime of the job.
60  *
61  * Note that this function doesn't need to unreference the BOs on
62  * failure, because that will happen at v3d_exec_cleanup() time.
63  */
64 static int
v3d_lookup_bos(struct drm_device * dev,struct drm_file * file_priv,struct v3d_job * job,u64 bo_handles,u32 bo_count)65 v3d_lookup_bos(struct drm_device *dev,
66 	       struct drm_file *file_priv,
67 	       struct v3d_job *job,
68 	       u64 bo_handles,
69 	       u32 bo_count)
70 {
71 	job->bo_count = bo_count;
72 
73 	if (!job->bo_count) {
74 		/* See comment on bo_index for why we have to check
75 		 * this.
76 		 */
77 		DRM_DEBUG("Rendering requires BOs\n");
78 		return -EINVAL;
79 	}
80 
81 	return drm_gem_objects_lookup(file_priv,
82 				      (void __user *)(uintptr_t)bo_handles,
83 				      job->bo_count, &job->bo);
84 }
85 
86 static void
v3d_job_free(struct kref * ref)87 v3d_job_free(struct kref *ref)
88 {
89 	struct v3d_job *job = container_of(ref, struct v3d_job, refcount);
90 	int i;
91 
92 	if (job->bo) {
93 		for (i = 0; i < job->bo_count; i++)
94 			drm_gem_object_put(job->bo[i]);
95 		kvfree(job->bo);
96 	}
97 
98 	dma_fence_put(job->irq_fence);
99 	dma_fence_put(job->done_fence);
100 
101 	if (job->perfmon)
102 		v3d_perfmon_put(job->perfmon);
103 
104 	kfree(job);
105 }
106 
107 static void
v3d_render_job_free(struct kref * ref)108 v3d_render_job_free(struct kref *ref)
109 {
110 	struct v3d_render_job *job = container_of(ref, struct v3d_render_job,
111 						  base.refcount);
112 	struct v3d_bo *bo, *save;
113 
114 	list_for_each_entry_safe(bo, save, &job->unref_list, unref_head) {
115 		drm_gem_object_put(&bo->base.base);
116 	}
117 
118 	v3d_job_free(ref);
119 }
120 
v3d_job_cleanup(struct v3d_job * job)121 void v3d_job_cleanup(struct v3d_job *job)
122 {
123 	if (!job)
124 		return;
125 
126 	drm_sched_job_cleanup(&job->base);
127 	v3d_job_put(job);
128 }
129 
v3d_job_put(struct v3d_job * job)130 void v3d_job_put(struct v3d_job *job)
131 {
132 	if (!job)
133 		return;
134 
135 	kref_put(&job->refcount, job->free);
136 }
137 
138 static int
v3d_job_allocate(void ** container,size_t size)139 v3d_job_allocate(void **container, size_t size)
140 {
141 	*container = kcalloc(1, size, GFP_KERNEL);
142 	if (!*container) {
143 		DRM_ERROR("Cannot allocate memory for V3D job.\n");
144 		return -ENOMEM;
145 	}
146 
147 	return 0;
148 }
149 
150 static void
v3d_job_deallocate(void ** container)151 v3d_job_deallocate(void **container)
152 {
153 	kfree(*container);
154 	*container = NULL;
155 }
156 
157 static int
v3d_job_init(struct v3d_dev * v3d,struct drm_file * file_priv,struct v3d_job * job,void (* free)(struct kref * ref),u32 in_sync,struct v3d_submit_ext * se,enum v3d_queue queue)158 v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv,
159 	     struct v3d_job *job, void (*free)(struct kref *ref),
160 	     u32 in_sync, struct v3d_submit_ext *se, enum v3d_queue queue)
161 {
162 	struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
163 	bool has_multisync = se && (se->flags & DRM_V3D_EXT_ID_MULTI_SYNC);
164 	int ret, i;
165 
166 	job->v3d = v3d;
167 	job->free = free;
168 	job->file = file_priv;
169 
170 	ret = drm_sched_job_init(&job->base, &v3d_priv->sched_entity[queue],
171 				 1, v3d_priv);
172 	if (ret)
173 		return ret;
174 
175 	if (has_multisync) {
176 		if (se->in_sync_count && se->wait_stage == queue) {
177 			struct drm_v3d_sem __user *handle = u64_to_user_ptr(se->in_syncs);
178 
179 			for (i = 0; i < se->in_sync_count; i++) {
180 				struct drm_v3d_sem in;
181 
182 				if (copy_from_user(&in, handle++, sizeof(in))) {
183 					ret = -EFAULT;
184 					DRM_DEBUG("Failed to copy wait dep handle.\n");
185 					goto fail_deps;
186 				}
187 				ret = drm_sched_job_add_syncobj_dependency(&job->base, file_priv, in.handle, 0);
188 
189 				// TODO: Investigate why this was filtered out for the IOCTL.
190 				if (ret && ret != -ENOENT)
191 					goto fail_deps;
192 			}
193 		}
194 	} else {
195 		ret = drm_sched_job_add_syncobj_dependency(&job->base, file_priv, in_sync, 0);
196 
197 		// TODO: Investigate why this was filtered out for the IOCTL.
198 		if (ret && ret != -ENOENT)
199 			goto fail_deps;
200 	}
201 
202 	kref_init(&job->refcount);
203 
204 	return 0;
205 
206 fail_deps:
207 	drm_sched_job_cleanup(&job->base);
208 	return ret;
209 }
210 
211 static void
v3d_push_job(struct v3d_job * job)212 v3d_push_job(struct v3d_job *job)
213 {
214 	drm_sched_job_arm(&job->base);
215 
216 	job->done_fence = dma_fence_get(&job->base.s_fence->finished);
217 
218 	/* put by scheduler job completion */
219 	kref_get(&job->refcount);
220 
221 	drm_sched_entity_push_job(&job->base);
222 }
223 
224 static void
v3d_attach_fences_and_unlock_reservation(struct drm_file * file_priv,struct v3d_job * job,struct ww_acquire_ctx * acquire_ctx,u32 out_sync,struct v3d_submit_ext * se,struct dma_fence * done_fence)225 v3d_attach_fences_and_unlock_reservation(struct drm_file *file_priv,
226 					 struct v3d_job *job,
227 					 struct ww_acquire_ctx *acquire_ctx,
228 					 u32 out_sync,
229 					 struct v3d_submit_ext *se,
230 					 struct dma_fence *done_fence)
231 {
232 	struct drm_syncobj *sync_out;
233 	bool has_multisync = se && (se->flags & DRM_V3D_EXT_ID_MULTI_SYNC);
234 	int i;
235 
236 	for (i = 0; i < job->bo_count; i++) {
237 		/* XXX: Use shared fences for read-only objects. */
238 		dma_resv_add_fence(job->bo[i]->resv, job->done_fence,
239 				   DMA_RESV_USAGE_WRITE);
240 	}
241 
242 	drm_gem_unlock_reservations(job->bo, job->bo_count, acquire_ctx);
243 
244 	/* Update the return sync object for the job */
245 	/* If it only supports a single signal semaphore*/
246 	if (!has_multisync) {
247 		sync_out = drm_syncobj_find(file_priv, out_sync);
248 		if (sync_out) {
249 			drm_syncobj_replace_fence(sync_out, done_fence);
250 			drm_syncobj_put(sync_out);
251 		}
252 		return;
253 	}
254 
255 	/* If multiple semaphores extension is supported */
256 	if (se->out_sync_count) {
257 		for (i = 0; i < se->out_sync_count; i++) {
258 			drm_syncobj_replace_fence(se->out_syncs[i].syncobj,
259 						  done_fence);
260 			drm_syncobj_put(se->out_syncs[i].syncobj);
261 		}
262 		kvfree(se->out_syncs);
263 	}
264 }
265 
266 static int
v3d_setup_csd_jobs_and_bos(struct drm_file * file_priv,struct v3d_dev * v3d,struct drm_v3d_submit_csd * args,struct v3d_csd_job ** job,struct v3d_job ** clean_job,struct v3d_submit_ext * se,struct ww_acquire_ctx * acquire_ctx)267 v3d_setup_csd_jobs_and_bos(struct drm_file *file_priv,
268 			   struct v3d_dev *v3d,
269 			   struct drm_v3d_submit_csd *args,
270 			   struct v3d_csd_job **job,
271 			   struct v3d_job **clean_job,
272 			   struct v3d_submit_ext *se,
273 			   struct ww_acquire_ctx *acquire_ctx)
274 {
275 	int ret;
276 
277 	ret = v3d_job_allocate((void *)job, sizeof(**job));
278 	if (ret)
279 		return ret;
280 
281 	ret = v3d_job_init(v3d, file_priv, &(*job)->base,
282 			   v3d_job_free, args->in_sync, se, V3D_CSD);
283 	if (ret) {
284 		v3d_job_deallocate((void *)job);
285 		return ret;
286 	}
287 
288 	ret = v3d_job_allocate((void *)clean_job, sizeof(**clean_job));
289 	if (ret)
290 		return ret;
291 
292 	ret = v3d_job_init(v3d, file_priv, *clean_job,
293 			   v3d_job_free, 0, NULL, V3D_CACHE_CLEAN);
294 	if (ret) {
295 		v3d_job_deallocate((void *)clean_job);
296 		return ret;
297 	}
298 
299 	(*job)->args = *args;
300 
301 	ret = v3d_lookup_bos(&v3d->drm, file_priv, *clean_job,
302 			     args->bo_handles, args->bo_handle_count);
303 	if (ret)
304 		return ret;
305 
306 	return v3d_lock_bo_reservations(*clean_job, acquire_ctx);
307 }
308 
309 static void
v3d_put_multisync_post_deps(struct v3d_submit_ext * se)310 v3d_put_multisync_post_deps(struct v3d_submit_ext *se)
311 {
312 	unsigned int i;
313 
314 	if (!(se && se->out_sync_count))
315 		return;
316 
317 	for (i = 0; i < se->out_sync_count; i++)
318 		drm_syncobj_put(se->out_syncs[i].syncobj);
319 	kvfree(se->out_syncs);
320 }
321 
322 static int
v3d_get_multisync_post_deps(struct drm_file * file_priv,struct v3d_submit_ext * se,u32 count,u64 handles)323 v3d_get_multisync_post_deps(struct drm_file *file_priv,
324 			    struct v3d_submit_ext *se,
325 			    u32 count, u64 handles)
326 {
327 	struct drm_v3d_sem __user *post_deps;
328 	int i, ret;
329 
330 	if (!count)
331 		return 0;
332 
333 	se->out_syncs = (struct v3d_submit_outsync *)
334 			kvmalloc_array(count,
335 				       sizeof(struct v3d_submit_outsync),
336 				       GFP_KERNEL);
337 	if (!se->out_syncs)
338 		return -ENOMEM;
339 
340 	post_deps = u64_to_user_ptr(handles);
341 
342 	for (i = 0; i < count; i++) {
343 		struct drm_v3d_sem out;
344 
345 		if (copy_from_user(&out, post_deps++, sizeof(out))) {
346 			ret = -EFAULT;
347 			DRM_DEBUG("Failed to copy post dep handles\n");
348 			goto fail;
349 		}
350 
351 		se->out_syncs[i].syncobj = drm_syncobj_find(file_priv,
352 							    out.handle);
353 		if (!se->out_syncs[i].syncobj) {
354 			ret = -EINVAL;
355 			goto fail;
356 		}
357 	}
358 	se->out_sync_count = count;
359 
360 	return 0;
361 
362 fail:
363 	for (i--; i >= 0; i--)
364 		drm_syncobj_put(se->out_syncs[i].syncobj);
365 	kvfree(se->out_syncs);
366 
367 	return ret;
368 }
369 
370 /* Get data for multiple binary semaphores synchronization. Parse syncobj
371  * to be signaled when job completes (out_sync).
372  */
373 static int
v3d_get_multisync_submit_deps(struct drm_file * file_priv,struct drm_v3d_extension __user * ext,struct v3d_submit_ext * se)374 v3d_get_multisync_submit_deps(struct drm_file *file_priv,
375 			      struct drm_v3d_extension __user *ext,
376 			      struct v3d_submit_ext *se)
377 {
378 	struct drm_v3d_multi_sync multisync;
379 	int ret;
380 
381 	if (se->in_sync_count || se->out_sync_count) {
382 		DRM_DEBUG("Two multisync extensions were added to the same job.");
383 		return -EINVAL;
384 	}
385 
386 	if (copy_from_user(&multisync, ext, sizeof(multisync)))
387 		return -EFAULT;
388 
389 	if (multisync.pad)
390 		return -EINVAL;
391 
392 	ret = v3d_get_multisync_post_deps(file_priv, se, multisync.out_sync_count,
393 					  multisync.out_syncs);
394 	if (ret)
395 		return ret;
396 
397 	se->in_sync_count = multisync.in_sync_count;
398 	se->in_syncs = multisync.in_syncs;
399 	se->flags |= DRM_V3D_EXT_ID_MULTI_SYNC;
400 	se->wait_stage = multisync.wait_stage;
401 
402 	return 0;
403 }
404 
405 /* Get data for the indirect CSD job submission. */
406 static int
v3d_get_cpu_indirect_csd_params(struct drm_file * file_priv,struct drm_v3d_extension __user * ext,struct v3d_cpu_job * job)407 v3d_get_cpu_indirect_csd_params(struct drm_file *file_priv,
408 				struct drm_v3d_extension __user *ext,
409 				struct v3d_cpu_job *job)
410 {
411 	struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
412 	struct v3d_dev *v3d = v3d_priv->v3d;
413 	struct drm_v3d_indirect_csd indirect_csd;
414 	struct v3d_indirect_csd_info *info = &job->indirect_csd;
415 
416 	if (!job) {
417 		DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
418 		return -EINVAL;
419 	}
420 
421 	if (job->job_type) {
422 		DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
423 		return -EINVAL;
424 	}
425 
426 	if (copy_from_user(&indirect_csd, ext, sizeof(indirect_csd)))
427 		return -EFAULT;
428 
429 	if (!v3d_has_csd(v3d)) {
430 		DRM_DEBUG("Attempting CSD submit on non-CSD hardware.\n");
431 		return -EINVAL;
432 	}
433 
434 	job->job_type = V3D_CPU_JOB_TYPE_INDIRECT_CSD;
435 	info->offset = indirect_csd.offset;
436 	info->wg_size = indirect_csd.wg_size;
437 	memcpy(&info->wg_uniform_offsets, &indirect_csd.wg_uniform_offsets,
438 	       sizeof(indirect_csd.wg_uniform_offsets));
439 
440 	info->indirect = drm_gem_object_lookup(file_priv, indirect_csd.indirect);
441 
442 	return v3d_setup_csd_jobs_and_bos(file_priv, v3d, &indirect_csd.submit,
443 					  &info->job, &info->clean_job,
444 					  NULL, &info->acquire_ctx);
445 }
446 
447 /* Get data for the query timestamp job submission. */
448 static int
v3d_get_cpu_timestamp_query_params(struct drm_file * file_priv,struct drm_v3d_extension __user * ext,struct v3d_cpu_job * job)449 v3d_get_cpu_timestamp_query_params(struct drm_file *file_priv,
450 				   struct drm_v3d_extension __user *ext,
451 				   struct v3d_cpu_job *job)
452 {
453 	u32 __user *offsets, *syncs;
454 	struct drm_v3d_timestamp_query timestamp;
455 	struct v3d_timestamp_query_info *query_info = &job->timestamp_query;
456 	unsigned int i;
457 	int err;
458 
459 	if (!job) {
460 		DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
461 		return -EINVAL;
462 	}
463 
464 	if (job->job_type) {
465 		DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
466 		return -EINVAL;
467 	}
468 
469 	if (copy_from_user(&timestamp, ext, sizeof(timestamp)))
470 		return -EFAULT;
471 
472 	if (timestamp.pad)
473 		return -EINVAL;
474 
475 	job->job_type = V3D_CPU_JOB_TYPE_TIMESTAMP_QUERY;
476 
477 	query_info->queries = kvmalloc_array(timestamp.count,
478 					     sizeof(struct v3d_timestamp_query),
479 					     GFP_KERNEL);
480 	if (!query_info->queries)
481 		return -ENOMEM;
482 
483 	offsets = u64_to_user_ptr(timestamp.offsets);
484 	syncs = u64_to_user_ptr(timestamp.syncs);
485 
486 	for (i = 0; i < timestamp.count; i++) {
487 		u32 offset, sync;
488 
489 		if (get_user(offset, offsets++)) {
490 			err = -EFAULT;
491 			goto error;
492 		}
493 
494 		query_info->queries[i].offset = offset;
495 
496 		if (get_user(sync, syncs++)) {
497 			err = -EFAULT;
498 			goto error;
499 		}
500 
501 		query_info->queries[i].syncobj = drm_syncobj_find(file_priv,
502 								  sync);
503 		if (!query_info->queries[i].syncobj) {
504 			err = -ENOENT;
505 			goto error;
506 		}
507 	}
508 	query_info->count = timestamp.count;
509 
510 	return 0;
511 
512 error:
513 	v3d_timestamp_query_info_free(&job->timestamp_query, i);
514 	return err;
515 }
516 
517 static int
v3d_get_cpu_reset_timestamp_params(struct drm_file * file_priv,struct drm_v3d_extension __user * ext,struct v3d_cpu_job * job)518 v3d_get_cpu_reset_timestamp_params(struct drm_file *file_priv,
519 				   struct drm_v3d_extension __user *ext,
520 				   struct v3d_cpu_job *job)
521 {
522 	u32 __user *syncs;
523 	struct drm_v3d_reset_timestamp_query reset;
524 	struct v3d_timestamp_query_info *query_info = &job->timestamp_query;
525 	unsigned int i;
526 	int err;
527 
528 	if (!job) {
529 		DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
530 		return -EINVAL;
531 	}
532 
533 	if (job->job_type) {
534 		DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
535 		return -EINVAL;
536 	}
537 
538 	if (copy_from_user(&reset, ext, sizeof(reset)))
539 		return -EFAULT;
540 
541 	job->job_type = V3D_CPU_JOB_TYPE_RESET_TIMESTAMP_QUERY;
542 
543 	query_info->queries = kvmalloc_array(reset.count,
544 					     sizeof(struct v3d_timestamp_query),
545 					     GFP_KERNEL);
546 	if (!query_info->queries)
547 		return -ENOMEM;
548 
549 	syncs = u64_to_user_ptr(reset.syncs);
550 
551 	for (i = 0; i < reset.count; i++) {
552 		u32 sync;
553 
554 		query_info->queries[i].offset = reset.offset + 8 * i;
555 
556 		if (get_user(sync, syncs++)) {
557 			err = -EFAULT;
558 			goto error;
559 		}
560 
561 		query_info->queries[i].syncobj = drm_syncobj_find(file_priv,
562 								  sync);
563 		if (!query_info->queries[i].syncobj) {
564 			err = -ENOENT;
565 			goto error;
566 		}
567 	}
568 	query_info->count = reset.count;
569 
570 	return 0;
571 
572 error:
573 	v3d_timestamp_query_info_free(&job->timestamp_query, i);
574 	return err;
575 }
576 
577 /* Get data for the copy timestamp query results job submission. */
578 static int
v3d_get_cpu_copy_query_results_params(struct drm_file * file_priv,struct drm_v3d_extension __user * ext,struct v3d_cpu_job * job)579 v3d_get_cpu_copy_query_results_params(struct drm_file *file_priv,
580 				      struct drm_v3d_extension __user *ext,
581 				      struct v3d_cpu_job *job)
582 {
583 	u32 __user *offsets, *syncs;
584 	struct drm_v3d_copy_timestamp_query copy;
585 	struct v3d_timestamp_query_info *query_info = &job->timestamp_query;
586 	unsigned int i;
587 	int err;
588 
589 	if (!job) {
590 		DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
591 		return -EINVAL;
592 	}
593 
594 	if (job->job_type) {
595 		DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
596 		return -EINVAL;
597 	}
598 
599 	if (copy_from_user(&copy, ext, sizeof(copy)))
600 		return -EFAULT;
601 
602 	if (copy.pad)
603 		return -EINVAL;
604 
605 	job->job_type = V3D_CPU_JOB_TYPE_COPY_TIMESTAMP_QUERY;
606 
607 	query_info->queries = kvmalloc_array(copy.count,
608 					     sizeof(struct v3d_timestamp_query),
609 					     GFP_KERNEL);
610 	if (!query_info->queries)
611 		return -ENOMEM;
612 
613 	offsets = u64_to_user_ptr(copy.offsets);
614 	syncs = u64_to_user_ptr(copy.syncs);
615 
616 	for (i = 0; i < copy.count; i++) {
617 		u32 offset, sync;
618 
619 		if (get_user(offset, offsets++)) {
620 			err = -EFAULT;
621 			goto error;
622 		}
623 
624 		query_info->queries[i].offset = offset;
625 
626 		if (get_user(sync, syncs++)) {
627 			err = -EFAULT;
628 			goto error;
629 		}
630 
631 		query_info->queries[i].syncobj = drm_syncobj_find(file_priv,
632 								  sync);
633 		if (!query_info->queries[i].syncobj) {
634 			err = -ENOENT;
635 			goto error;
636 		}
637 	}
638 	query_info->count = copy.count;
639 
640 	job->copy.do_64bit = copy.do_64bit;
641 	job->copy.do_partial = copy.do_partial;
642 	job->copy.availability_bit = copy.availability_bit;
643 	job->copy.offset = copy.offset;
644 	job->copy.stride = copy.stride;
645 
646 	return 0;
647 
648 error:
649 	v3d_timestamp_query_info_free(&job->timestamp_query, i);
650 	return err;
651 }
652 
653 static int
v3d_copy_query_info(struct v3d_performance_query_info * query_info,unsigned int count,unsigned int nperfmons,u32 __user * syncs,u64 __user * kperfmon_ids,struct drm_file * file_priv)654 v3d_copy_query_info(struct v3d_performance_query_info *query_info,
655 		    unsigned int count,
656 		    unsigned int nperfmons,
657 		    u32 __user *syncs,
658 		    u64 __user *kperfmon_ids,
659 		    struct drm_file *file_priv)
660 {
661 	unsigned int i, j;
662 	int err;
663 
664 	for (i = 0; i < count; i++) {
665 		struct v3d_performance_query *query = &query_info->queries[i];
666 		u32 __user *ids_pointer;
667 		u32 sync, id;
668 		u64 ids;
669 
670 		if (get_user(sync, syncs++)) {
671 			err = -EFAULT;
672 			goto error;
673 		}
674 
675 		if (get_user(ids, kperfmon_ids++)) {
676 			err = -EFAULT;
677 			goto error;
678 		}
679 
680 		query->kperfmon_ids =
681 			kvmalloc_array(nperfmons,
682 				       sizeof(struct v3d_performance_query *),
683 				       GFP_KERNEL);
684 		if (!query->kperfmon_ids) {
685 			err = -ENOMEM;
686 			goto error;
687 		}
688 
689 		ids_pointer = u64_to_user_ptr(ids);
690 
691 		for (j = 0; j < nperfmons; j++) {
692 			if (get_user(id, ids_pointer++)) {
693 				kvfree(query->kperfmon_ids);
694 				err = -EFAULT;
695 				goto error;
696 			}
697 
698 			query->kperfmon_ids[j] = id;
699 		}
700 
701 		query->syncobj = drm_syncobj_find(file_priv, sync);
702 		if (!query->syncobj) {
703 			kvfree(query->kperfmon_ids);
704 			err = -ENOENT;
705 			goto error;
706 		}
707 	}
708 
709 	return 0;
710 
711 error:
712 	v3d_performance_query_info_free(query_info, i);
713 	return err;
714 }
715 
716 static int
v3d_get_cpu_reset_performance_params(struct drm_file * file_priv,struct drm_v3d_extension __user * ext,struct v3d_cpu_job * job)717 v3d_get_cpu_reset_performance_params(struct drm_file *file_priv,
718 				     struct drm_v3d_extension __user *ext,
719 				     struct v3d_cpu_job *job)
720 {
721 	struct v3d_performance_query_info *query_info = &job->performance_query;
722 	struct drm_v3d_reset_performance_query reset;
723 	int err;
724 
725 	if (!job) {
726 		DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
727 		return -EINVAL;
728 	}
729 
730 	if (job->job_type) {
731 		DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
732 		return -EINVAL;
733 	}
734 
735 	if (copy_from_user(&reset, ext, sizeof(reset)))
736 		return -EFAULT;
737 
738 	job->job_type = V3D_CPU_JOB_TYPE_RESET_PERFORMANCE_QUERY;
739 
740 	query_info->queries =
741 		kvmalloc_array(reset.count,
742 			       sizeof(struct v3d_performance_query),
743 			       GFP_KERNEL);
744 	if (!query_info->queries)
745 		return -ENOMEM;
746 
747 	err = v3d_copy_query_info(query_info,
748 				  reset.count,
749 				  reset.nperfmons,
750 				  u64_to_user_ptr(reset.syncs),
751 				  u64_to_user_ptr(reset.kperfmon_ids),
752 				  file_priv);
753 	if (err)
754 		return err;
755 
756 	query_info->count = reset.count;
757 	query_info->nperfmons = reset.nperfmons;
758 
759 	return 0;
760 }
761 
762 static int
v3d_get_cpu_copy_performance_query_params(struct drm_file * file_priv,struct drm_v3d_extension __user * ext,struct v3d_cpu_job * job)763 v3d_get_cpu_copy_performance_query_params(struct drm_file *file_priv,
764 					  struct drm_v3d_extension __user *ext,
765 					  struct v3d_cpu_job *job)
766 {
767 	struct v3d_performance_query_info *query_info = &job->performance_query;
768 	struct drm_v3d_copy_performance_query copy;
769 	int err;
770 
771 	if (!job) {
772 		DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
773 		return -EINVAL;
774 	}
775 
776 	if (job->job_type) {
777 		DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
778 		return -EINVAL;
779 	}
780 
781 	if (copy_from_user(&copy, ext, sizeof(copy)))
782 		return -EFAULT;
783 
784 	if (copy.pad)
785 		return -EINVAL;
786 
787 	job->job_type = V3D_CPU_JOB_TYPE_COPY_PERFORMANCE_QUERY;
788 
789 	query_info->queries =
790 		kvmalloc_array(copy.count,
791 			       sizeof(struct v3d_performance_query),
792 			       GFP_KERNEL);
793 	if (!query_info->queries)
794 		return -ENOMEM;
795 
796 	err = v3d_copy_query_info(query_info,
797 				  copy.count,
798 				  copy.nperfmons,
799 				  u64_to_user_ptr(copy.syncs),
800 				  u64_to_user_ptr(copy.kperfmon_ids),
801 				  file_priv);
802 	if (err)
803 		return err;
804 
805 	query_info->count = copy.count;
806 	query_info->nperfmons = copy.nperfmons;
807 	query_info->ncounters = copy.ncounters;
808 
809 	job->copy.do_64bit = copy.do_64bit;
810 	job->copy.do_partial = copy.do_partial;
811 	job->copy.availability_bit = copy.availability_bit;
812 	job->copy.offset = copy.offset;
813 	job->copy.stride = copy.stride;
814 
815 	return 0;
816 }
817 
818 /* Whenever userspace sets ioctl extensions, v3d_get_extensions parses data
819  * according to the extension id (name).
820  */
821 static int
v3d_get_extensions(struct drm_file * file_priv,u64 ext_handles,struct v3d_submit_ext * se,struct v3d_cpu_job * job)822 v3d_get_extensions(struct drm_file *file_priv,
823 		   u64 ext_handles,
824 		   struct v3d_submit_ext *se,
825 		   struct v3d_cpu_job *job)
826 {
827 	struct drm_v3d_extension __user *user_ext;
828 	int ret;
829 
830 	user_ext = u64_to_user_ptr(ext_handles);
831 	while (user_ext) {
832 		struct drm_v3d_extension ext;
833 
834 		if (copy_from_user(&ext, user_ext, sizeof(ext))) {
835 			DRM_DEBUG("Failed to copy submit extension\n");
836 			return -EFAULT;
837 		}
838 
839 		switch (ext.id) {
840 		case DRM_V3D_EXT_ID_MULTI_SYNC:
841 			ret = v3d_get_multisync_submit_deps(file_priv, user_ext, se);
842 			break;
843 		case DRM_V3D_EXT_ID_CPU_INDIRECT_CSD:
844 			ret = v3d_get_cpu_indirect_csd_params(file_priv, user_ext, job);
845 			break;
846 		case DRM_V3D_EXT_ID_CPU_TIMESTAMP_QUERY:
847 			ret = v3d_get_cpu_timestamp_query_params(file_priv, user_ext, job);
848 			break;
849 		case DRM_V3D_EXT_ID_CPU_RESET_TIMESTAMP_QUERY:
850 			ret = v3d_get_cpu_reset_timestamp_params(file_priv, user_ext, job);
851 			break;
852 		case DRM_V3D_EXT_ID_CPU_COPY_TIMESTAMP_QUERY:
853 			ret = v3d_get_cpu_copy_query_results_params(file_priv, user_ext, job);
854 			break;
855 		case DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY:
856 			ret = v3d_get_cpu_reset_performance_params(file_priv, user_ext, job);
857 			break;
858 		case DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY:
859 			ret = v3d_get_cpu_copy_performance_query_params(file_priv, user_ext, job);
860 			break;
861 		default:
862 			DRM_DEBUG_DRIVER("Unknown extension id: %d\n", ext.id);
863 			return -EINVAL;
864 		}
865 
866 		if (ret)
867 			return ret;
868 
869 		user_ext = u64_to_user_ptr(ext.next);
870 	}
871 
872 	return 0;
873 }
874 
875 /**
876  * v3d_submit_cl_ioctl() - Submits a job (frame) to the V3D.
877  * @dev: DRM device
878  * @data: ioctl argument
879  * @file_priv: DRM file for this fd
880  *
881  * This is the main entrypoint for userspace to submit a 3D frame to
882  * the GPU.  Userspace provides the binner command list (if
883  * applicable), and the kernel sets up the render command list to draw
884  * to the framebuffer described in the ioctl, using the command lists
885  * that the 3D engine's binner will produce.
886  */
887 int
v3d_submit_cl_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)888 v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
889 		    struct drm_file *file_priv)
890 {
891 	struct v3d_dev *v3d = to_v3d_dev(dev);
892 	struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
893 	struct drm_v3d_submit_cl *args = data;
894 	struct v3d_submit_ext se = {0};
895 	struct v3d_bin_job *bin = NULL;
896 	struct v3d_render_job *render = NULL;
897 	struct v3d_job *clean_job = NULL;
898 	struct v3d_job *last_job;
899 	struct ww_acquire_ctx acquire_ctx;
900 	int ret = 0;
901 
902 	trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end);
903 
904 	if (args->pad)
905 		return -EINVAL;
906 
907 	if (args->flags &&
908 	    args->flags & ~(DRM_V3D_SUBMIT_CL_FLUSH_CACHE |
909 			    DRM_V3D_SUBMIT_EXTENSION)) {
910 		DRM_INFO("invalid flags: %d\n", args->flags);
911 		return -EINVAL;
912 	}
913 
914 	if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
915 		ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL);
916 		if (ret) {
917 			DRM_DEBUG("Failed to get extensions.\n");
918 			return ret;
919 		}
920 	}
921 
922 	ret = v3d_job_allocate((void *)&render, sizeof(*render));
923 	if (ret)
924 		return ret;
925 
926 	ret = v3d_job_init(v3d, file_priv, &render->base,
927 			   v3d_render_job_free, args->in_sync_rcl, &se, V3D_RENDER);
928 	if (ret) {
929 		v3d_job_deallocate((void *)&render);
930 		goto fail;
931 	}
932 
933 	render->start = args->rcl_start;
934 	render->end = args->rcl_end;
935 	INIT_LIST_HEAD(&render->unref_list);
936 
937 	if (args->bcl_start != args->bcl_end) {
938 		ret = v3d_job_allocate((void *)&bin, sizeof(*bin));
939 		if (ret)
940 			goto fail;
941 
942 		ret = v3d_job_init(v3d, file_priv, &bin->base,
943 				   v3d_job_free, args->in_sync_bcl, &se, V3D_BIN);
944 		if (ret) {
945 			v3d_job_deallocate((void *)&bin);
946 			goto fail;
947 		}
948 
949 		bin->start = args->bcl_start;
950 		bin->end = args->bcl_end;
951 		bin->qma = args->qma;
952 		bin->qms = args->qms;
953 		bin->qts = args->qts;
954 		bin->render = render;
955 	}
956 
957 	if (args->flags & DRM_V3D_SUBMIT_CL_FLUSH_CACHE) {
958 		ret = v3d_job_allocate((void *)&clean_job, sizeof(*clean_job));
959 		if (ret)
960 			goto fail;
961 
962 		ret = v3d_job_init(v3d, file_priv, clean_job,
963 				   v3d_job_free, 0, NULL, V3D_CACHE_CLEAN);
964 		if (ret) {
965 			v3d_job_deallocate((void *)&clean_job);
966 			goto fail;
967 		}
968 
969 		last_job = clean_job;
970 	} else {
971 		last_job = &render->base;
972 	}
973 
974 	ret = v3d_lookup_bos(dev, file_priv, last_job,
975 			     args->bo_handles, args->bo_handle_count);
976 	if (ret)
977 		goto fail;
978 
979 	ret = v3d_lock_bo_reservations(last_job, &acquire_ctx);
980 	if (ret)
981 		goto fail;
982 
983 	if (args->perfmon_id) {
984 		render->base.perfmon = v3d_perfmon_find(v3d_priv,
985 							args->perfmon_id);
986 
987 		if (!render->base.perfmon) {
988 			ret = -ENOENT;
989 			goto fail_perfmon;
990 		}
991 	}
992 
993 	mutex_lock(&v3d->sched_lock);
994 	if (bin) {
995 		bin->base.perfmon = render->base.perfmon;
996 		v3d_perfmon_get(bin->base.perfmon);
997 		v3d_push_job(&bin->base);
998 
999 		ret = drm_sched_job_add_dependency(&render->base.base,
1000 						   dma_fence_get(bin->base.done_fence));
1001 		if (ret)
1002 			goto fail_unreserve;
1003 	}
1004 
1005 	v3d_push_job(&render->base);
1006 
1007 	if (clean_job) {
1008 		struct dma_fence *render_fence =
1009 			dma_fence_get(render->base.done_fence);
1010 		ret = drm_sched_job_add_dependency(&clean_job->base,
1011 						   render_fence);
1012 		if (ret)
1013 			goto fail_unreserve;
1014 		clean_job->perfmon = render->base.perfmon;
1015 		v3d_perfmon_get(clean_job->perfmon);
1016 		v3d_push_job(clean_job);
1017 	}
1018 
1019 	mutex_unlock(&v3d->sched_lock);
1020 
1021 	v3d_attach_fences_and_unlock_reservation(file_priv,
1022 						 last_job,
1023 						 &acquire_ctx,
1024 						 args->out_sync,
1025 						 &se,
1026 						 last_job->done_fence);
1027 
1028 	v3d_job_put(&bin->base);
1029 	v3d_job_put(&render->base);
1030 	v3d_job_put(clean_job);
1031 
1032 	return 0;
1033 
1034 fail_unreserve:
1035 	mutex_unlock(&v3d->sched_lock);
1036 fail_perfmon:
1037 	drm_gem_unlock_reservations(last_job->bo,
1038 				    last_job->bo_count, &acquire_ctx);
1039 fail:
1040 	v3d_job_cleanup((void *)bin);
1041 	v3d_job_cleanup((void *)render);
1042 	v3d_job_cleanup(clean_job);
1043 	v3d_put_multisync_post_deps(&se);
1044 
1045 	return ret;
1046 }
1047 
1048 /**
1049  * v3d_submit_tfu_ioctl() - Submits a TFU (texture formatting) job to the V3D.
1050  * @dev: DRM device
1051  * @data: ioctl argument
1052  * @file_priv: DRM file for this fd
1053  *
1054  * Userspace provides the register setup for the TFU, which we don't
1055  * need to validate since the TFU is behind the MMU.
1056  */
1057 int
v3d_submit_tfu_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1058 v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
1059 		     struct drm_file *file_priv)
1060 {
1061 	struct v3d_dev *v3d = to_v3d_dev(dev);
1062 	struct drm_v3d_submit_tfu *args = data;
1063 	struct v3d_submit_ext se = {0};
1064 	struct v3d_tfu_job *job = NULL;
1065 	struct ww_acquire_ctx acquire_ctx;
1066 	int ret = 0;
1067 
1068 	trace_v3d_submit_tfu_ioctl(&v3d->drm, args->iia);
1069 
1070 	if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) {
1071 		DRM_DEBUG("invalid flags: %d\n", args->flags);
1072 		return -EINVAL;
1073 	}
1074 
1075 	if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
1076 		ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL);
1077 		if (ret) {
1078 			DRM_DEBUG("Failed to get extensions.\n");
1079 			return ret;
1080 		}
1081 	}
1082 
1083 	ret = v3d_job_allocate((void *)&job, sizeof(*job));
1084 	if (ret)
1085 		return ret;
1086 
1087 	ret = v3d_job_init(v3d, file_priv, &job->base,
1088 			   v3d_job_free, args->in_sync, &se, V3D_TFU);
1089 	if (ret) {
1090 		v3d_job_deallocate((void *)&job);
1091 		goto fail;
1092 	}
1093 
1094 	job->base.bo = kcalloc(ARRAY_SIZE(args->bo_handles),
1095 			       sizeof(*job->base.bo), GFP_KERNEL);
1096 	if (!job->base.bo) {
1097 		ret = -ENOMEM;
1098 		goto fail;
1099 	}
1100 
1101 	job->args = *args;
1102 
1103 	for (job->base.bo_count = 0;
1104 	     job->base.bo_count < ARRAY_SIZE(args->bo_handles);
1105 	     job->base.bo_count++) {
1106 		struct drm_gem_object *bo;
1107 
1108 		if (!args->bo_handles[job->base.bo_count])
1109 			break;
1110 
1111 		bo = drm_gem_object_lookup(file_priv, args->bo_handles[job->base.bo_count]);
1112 		if (!bo) {
1113 			DRM_DEBUG("Failed to look up GEM BO %d: %d\n",
1114 				  job->base.bo_count,
1115 				  args->bo_handles[job->base.bo_count]);
1116 			ret = -ENOENT;
1117 			goto fail;
1118 		}
1119 		job->base.bo[job->base.bo_count] = bo;
1120 	}
1121 
1122 	ret = v3d_lock_bo_reservations(&job->base, &acquire_ctx);
1123 	if (ret)
1124 		goto fail;
1125 
1126 	mutex_lock(&v3d->sched_lock);
1127 	v3d_push_job(&job->base);
1128 	mutex_unlock(&v3d->sched_lock);
1129 
1130 	v3d_attach_fences_and_unlock_reservation(file_priv,
1131 						 &job->base, &acquire_ctx,
1132 						 args->out_sync,
1133 						 &se,
1134 						 job->base.done_fence);
1135 
1136 	v3d_job_put(&job->base);
1137 
1138 	return 0;
1139 
1140 fail:
1141 	v3d_job_cleanup((void *)job);
1142 	v3d_put_multisync_post_deps(&se);
1143 
1144 	return ret;
1145 }
1146 
1147 /**
1148  * v3d_submit_csd_ioctl() - Submits a CSD (compute shader) job to the V3D.
1149  * @dev: DRM device
1150  * @data: ioctl argument
1151  * @file_priv: DRM file for this fd
1152  *
1153  * Userspace provides the register setup for the CSD, which we don't
1154  * need to validate since the CSD is behind the MMU.
1155  */
1156 int
v3d_submit_csd_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1157 v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
1158 		     struct drm_file *file_priv)
1159 {
1160 	struct v3d_dev *v3d = to_v3d_dev(dev);
1161 	struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
1162 	struct drm_v3d_submit_csd *args = data;
1163 	struct v3d_submit_ext se = {0};
1164 	struct v3d_csd_job *job = NULL;
1165 	struct v3d_job *clean_job = NULL;
1166 	struct ww_acquire_ctx acquire_ctx;
1167 	int ret;
1168 
1169 	trace_v3d_submit_csd_ioctl(&v3d->drm, args->cfg[5], args->cfg[6]);
1170 
1171 	if (args->pad)
1172 		return -EINVAL;
1173 
1174 	if (!v3d_has_csd(v3d)) {
1175 		DRM_DEBUG("Attempting CSD submit on non-CSD hardware\n");
1176 		return -EINVAL;
1177 	}
1178 
1179 	if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) {
1180 		DRM_INFO("invalid flags: %d\n", args->flags);
1181 		return -EINVAL;
1182 	}
1183 
1184 	if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
1185 		ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL);
1186 		if (ret) {
1187 			DRM_DEBUG("Failed to get extensions.\n");
1188 			return ret;
1189 		}
1190 	}
1191 
1192 	ret = v3d_setup_csd_jobs_and_bos(file_priv, v3d, args,
1193 					 &job, &clean_job, &se,
1194 					 &acquire_ctx);
1195 	if (ret)
1196 		goto fail;
1197 
1198 	if (args->perfmon_id) {
1199 		job->base.perfmon = v3d_perfmon_find(v3d_priv,
1200 						     args->perfmon_id);
1201 		if (!job->base.perfmon) {
1202 			ret = -ENOENT;
1203 			goto fail_perfmon;
1204 		}
1205 	}
1206 
1207 	mutex_lock(&v3d->sched_lock);
1208 	v3d_push_job(&job->base);
1209 
1210 	ret = drm_sched_job_add_dependency(&clean_job->base,
1211 					   dma_fence_get(job->base.done_fence));
1212 	if (ret)
1213 		goto fail_unreserve;
1214 
1215 	v3d_push_job(clean_job);
1216 	mutex_unlock(&v3d->sched_lock);
1217 
1218 	v3d_attach_fences_and_unlock_reservation(file_priv,
1219 						 clean_job,
1220 						 &acquire_ctx,
1221 						 args->out_sync,
1222 						 &se,
1223 						 clean_job->done_fence);
1224 
1225 	v3d_job_put(&job->base);
1226 	v3d_job_put(clean_job);
1227 
1228 	return 0;
1229 
1230 fail_unreserve:
1231 	mutex_unlock(&v3d->sched_lock);
1232 fail_perfmon:
1233 	drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count,
1234 				    &acquire_ctx);
1235 fail:
1236 	v3d_job_cleanup((void *)job);
1237 	v3d_job_cleanup(clean_job);
1238 	v3d_put_multisync_post_deps(&se);
1239 
1240 	return ret;
1241 }
1242 
1243 static const unsigned int cpu_job_bo_handle_count[] = {
1244 	[V3D_CPU_JOB_TYPE_INDIRECT_CSD] = 1,
1245 	[V3D_CPU_JOB_TYPE_TIMESTAMP_QUERY] = 1,
1246 	[V3D_CPU_JOB_TYPE_RESET_TIMESTAMP_QUERY] = 1,
1247 	[V3D_CPU_JOB_TYPE_COPY_TIMESTAMP_QUERY] = 2,
1248 	[V3D_CPU_JOB_TYPE_RESET_PERFORMANCE_QUERY] = 0,
1249 	[V3D_CPU_JOB_TYPE_COPY_PERFORMANCE_QUERY] = 1,
1250 };
1251 
1252 /**
1253  * v3d_submit_cpu_ioctl() - Submits a CPU job to the V3D.
1254  * @dev: DRM device
1255  * @data: ioctl argument
1256  * @file_priv: DRM file for this fd
1257  *
1258  * Userspace specifies the CPU job type and data required to perform its
1259  * operations through the drm_v3d_extension struct.
1260  */
1261 int
v3d_submit_cpu_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1262 v3d_submit_cpu_ioctl(struct drm_device *dev, void *data,
1263 		     struct drm_file *file_priv)
1264 {
1265 	struct v3d_dev *v3d = to_v3d_dev(dev);
1266 	struct drm_v3d_submit_cpu *args = data;
1267 	struct v3d_submit_ext se = {0};
1268 	struct v3d_submit_ext *out_se = NULL;
1269 	struct v3d_cpu_job *cpu_job = NULL;
1270 	struct v3d_csd_job *csd_job = NULL;
1271 	struct v3d_job *clean_job = NULL;
1272 	struct ww_acquire_ctx acquire_ctx;
1273 	int ret;
1274 
1275 	if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) {
1276 		DRM_INFO("Invalid flags: %d\n", args->flags);
1277 		return -EINVAL;
1278 	}
1279 
1280 	ret = v3d_job_allocate((void *)&cpu_job, sizeof(*cpu_job));
1281 	if (ret)
1282 		return ret;
1283 
1284 	if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
1285 		ret = v3d_get_extensions(file_priv, args->extensions, &se, cpu_job);
1286 		if (ret) {
1287 			DRM_DEBUG("Failed to get extensions.\n");
1288 			goto fail;
1289 		}
1290 	}
1291 
1292 	/* Every CPU job must have a CPU job user extension */
1293 	if (!cpu_job->job_type) {
1294 		DRM_DEBUG("CPU job must have a CPU job user extension.\n");
1295 		ret = -EINVAL;
1296 		goto fail;
1297 	}
1298 
1299 	if (args->bo_handle_count != cpu_job_bo_handle_count[cpu_job->job_type]) {
1300 		DRM_DEBUG("This CPU job was not submitted with the proper number of BOs.\n");
1301 		ret = -EINVAL;
1302 		goto fail;
1303 	}
1304 
1305 	trace_v3d_submit_cpu_ioctl(&v3d->drm, cpu_job->job_type);
1306 
1307 	ret = v3d_job_init(v3d, file_priv, &cpu_job->base,
1308 			   v3d_job_free, 0, &se, V3D_CPU);
1309 	if (ret) {
1310 		v3d_job_deallocate((void *)&cpu_job);
1311 		goto fail;
1312 	}
1313 
1314 	clean_job = cpu_job->indirect_csd.clean_job;
1315 	csd_job = cpu_job->indirect_csd.job;
1316 
1317 	if (args->bo_handle_count) {
1318 		ret = v3d_lookup_bos(dev, file_priv, &cpu_job->base,
1319 				     args->bo_handles, args->bo_handle_count);
1320 		if (ret)
1321 			goto fail;
1322 
1323 		ret = v3d_lock_bo_reservations(&cpu_job->base, &acquire_ctx);
1324 		if (ret)
1325 			goto fail;
1326 	}
1327 
1328 	mutex_lock(&v3d->sched_lock);
1329 	v3d_push_job(&cpu_job->base);
1330 
1331 	switch (cpu_job->job_type) {
1332 	case V3D_CPU_JOB_TYPE_INDIRECT_CSD:
1333 		ret = drm_sched_job_add_dependency(&csd_job->base.base,
1334 						   dma_fence_get(cpu_job->base.done_fence));
1335 		if (ret)
1336 			goto fail_unreserve;
1337 
1338 		v3d_push_job(&csd_job->base);
1339 
1340 		ret = drm_sched_job_add_dependency(&clean_job->base,
1341 						   dma_fence_get(csd_job->base.done_fence));
1342 		if (ret)
1343 			goto fail_unreserve;
1344 
1345 		v3d_push_job(clean_job);
1346 
1347 		break;
1348 	default:
1349 		break;
1350 	}
1351 	mutex_unlock(&v3d->sched_lock);
1352 
1353 	out_se = (cpu_job->job_type == V3D_CPU_JOB_TYPE_INDIRECT_CSD) ? NULL : &se;
1354 
1355 	v3d_attach_fences_and_unlock_reservation(file_priv,
1356 						 &cpu_job->base,
1357 						 &acquire_ctx, 0,
1358 						 out_se, cpu_job->base.done_fence);
1359 
1360 	switch (cpu_job->job_type) {
1361 	case V3D_CPU_JOB_TYPE_INDIRECT_CSD:
1362 		v3d_attach_fences_and_unlock_reservation(file_priv,
1363 							 clean_job,
1364 							 &cpu_job->indirect_csd.acquire_ctx,
1365 							 0, &se, clean_job->done_fence);
1366 		break;
1367 	default:
1368 		break;
1369 	}
1370 
1371 	v3d_job_put(&cpu_job->base);
1372 	v3d_job_put(&csd_job->base);
1373 	v3d_job_put(clean_job);
1374 
1375 	return 0;
1376 
1377 fail_unreserve:
1378 	mutex_unlock(&v3d->sched_lock);
1379 
1380 	drm_gem_unlock_reservations(cpu_job->base.bo, cpu_job->base.bo_count,
1381 				    &acquire_ctx);
1382 
1383 	drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count,
1384 				    &cpu_job->indirect_csd.acquire_ctx);
1385 
1386 fail:
1387 	v3d_job_cleanup((void *)cpu_job);
1388 	v3d_job_cleanup((void *)csd_job);
1389 	v3d_job_cleanup(clean_job);
1390 	v3d_put_multisync_post_deps(&se);
1391 	kvfree(cpu_job->timestamp_query.queries);
1392 	kvfree(cpu_job->performance_query.queries);
1393 
1394 	return ret;
1395 }
1396