1/*
2 * Copyright (C) 2015 Red Hat, Inc.
3 * All Rights Reserved.
4 *
5 * Authors:
6 * Dave Airlie
7 * Alon Levy
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 */
27
28#include <linux/file.h>
29#include <linux/sync_file.h>
30#include <linux/uaccess.h>
31
32#include <drm/drm_file.h>
33#include <drm/virtgpu_drm.h>
34
35#include "virtgpu_drv.h"
36
37#define VIRTGPU_BLOB_FLAG_USE_MASK (VIRTGPU_BLOB_FLAG_USE_MAPPABLE | \
38 VIRTGPU_BLOB_FLAG_USE_SHAREABLE | \
39 VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE)
40
41/* Must be called with &virtio_gpu_fpriv.struct_mutex held. */
42static void virtio_gpu_create_context_locked(struct virtio_gpu_device *vgdev,
43 struct virtio_gpu_fpriv *vfpriv)
44{
45 char dbgname[TASK_COMM_LEN];
46
47 get_task_comm(dbgname, current);
48 virtio_gpu_cmd_context_create(vgdev, id: vfpriv->ctx_id,
49 context_init: vfpriv->context_init, strlen(dbgname),
50 name: dbgname);
51
52 vfpriv->context_created = true;
53}
54
55void virtio_gpu_create_context(struct drm_device *dev, struct drm_file *file)
56{
57 struct virtio_gpu_device *vgdev = dev->dev_private;
58 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
59
60 mutex_lock(&vfpriv->context_lock);
61 if (vfpriv->context_created)
62 goto out_unlock;
63
64 virtio_gpu_create_context_locked(vgdev, vfpriv);
65
66out_unlock:
67 mutex_unlock(lock: &vfpriv->context_lock);
68}
69
70static int virtio_gpu_map_ioctl(struct drm_device *dev, void *data,
71 struct drm_file *file)
72{
73 struct virtio_gpu_device *vgdev = dev->dev_private;
74 struct drm_virtgpu_map *virtio_gpu_map = data;
75
76 return virtio_gpu_mode_dumb_mmap(file_priv: file, dev: vgdev->ddev,
77 handle: virtio_gpu_map->handle,
78 offset_p: &virtio_gpu_map->offset);
79}
80
81static int virtio_gpu_getparam_ioctl(struct drm_device *dev, void *data,
82 struct drm_file *file)
83{
84 struct virtio_gpu_device *vgdev = dev->dev_private;
85 struct drm_virtgpu_getparam *param = data;
86 int value;
87
88 switch (param->param) {
89 case VIRTGPU_PARAM_3D_FEATURES:
90 value = vgdev->has_virgl_3d ? 1 : 0;
91 break;
92 case VIRTGPU_PARAM_CAPSET_QUERY_FIX:
93 value = 1;
94 break;
95 case VIRTGPU_PARAM_RESOURCE_BLOB:
96 value = vgdev->has_resource_blob ? 1 : 0;
97 break;
98 case VIRTGPU_PARAM_HOST_VISIBLE:
99 value = vgdev->has_host_visible ? 1 : 0;
100 break;
101 case VIRTGPU_PARAM_CROSS_DEVICE:
102 value = vgdev->has_resource_assign_uuid ? 1 : 0;
103 break;
104 case VIRTGPU_PARAM_CONTEXT_INIT:
105 value = vgdev->has_context_init ? 1 : 0;
106 break;
107 case VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs:
108 value = vgdev->capset_id_mask;
109 break;
110 default:
111 return -EINVAL;
112 }
113 if (copy_to_user(u64_to_user_ptr(param->value), from: &value, n: sizeof(int)))
114 return -EFAULT;
115
116 return 0;
117}
118
119static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
120 struct drm_file *file)
121{
122 struct virtio_gpu_device *vgdev = dev->dev_private;
123 struct drm_virtgpu_resource_create *rc = data;
124 struct virtio_gpu_fence *fence;
125 int ret;
126 struct virtio_gpu_object *qobj;
127 struct drm_gem_object *obj;
128 uint32_t handle = 0;
129 struct virtio_gpu_object_params params = { 0 };
130
131 if (vgdev->has_virgl_3d) {
132 virtio_gpu_create_context(dev, file);
133 params.virgl = true;
134 params.target = rc->target;
135 params.bind = rc->bind;
136 params.depth = rc->depth;
137 params.array_size = rc->array_size;
138 params.last_level = rc->last_level;
139 params.nr_samples = rc->nr_samples;
140 params.flags = rc->flags;
141 } else {
142 if (rc->depth > 1)
143 return -EINVAL;
144 if (rc->nr_samples > 1)
145 return -EINVAL;
146 if (rc->last_level > 1)
147 return -EINVAL;
148 if (rc->target != 2)
149 return -EINVAL;
150 if (rc->array_size > 1)
151 return -EINVAL;
152 }
153
154 params.format = rc->format;
155 params.width = rc->width;
156 params.height = rc->height;
157 params.size = rc->size;
158 /* allocate a single page size object */
159 if (params.size == 0)
160 params.size = PAGE_SIZE;
161
162 fence = virtio_gpu_fence_alloc(vgdev, base_fence_ctx: vgdev->fence_drv.context, ring_idx: 0);
163 if (!fence)
164 return -ENOMEM;
165 ret = virtio_gpu_object_create(vgdev, params: &params, bo_ptr: &qobj, fence);
166 dma_fence_put(fence: &fence->f);
167 if (ret < 0)
168 return ret;
169 obj = &qobj->base.base;
170
171 ret = drm_gem_handle_create(file_priv: file, obj, handlep: &handle);
172 if (ret) {
173 drm_gem_object_release(obj);
174 return ret;
175 }
176
177 rc->res_handle = qobj->hw_res_handle; /* similiar to a VM address */
178 rc->bo_handle = handle;
179
180 /*
181 * The handle owns the reference now. But we must drop our
182 * remaining reference *after* we no longer need to dereference
183 * the obj. Otherwise userspace could guess the handle and
184 * race closing it from another thread.
185 */
186 drm_gem_object_put(obj);
187
188 return 0;
189}
190
191static int virtio_gpu_resource_info_ioctl(struct drm_device *dev, void *data,
192 struct drm_file *file)
193{
194 struct drm_virtgpu_resource_info *ri = data;
195 struct drm_gem_object *gobj = NULL;
196 struct virtio_gpu_object *qobj = NULL;
197
198 gobj = drm_gem_object_lookup(filp: file, handle: ri->bo_handle);
199 if (gobj == NULL)
200 return -ENOENT;
201
202 qobj = gem_to_virtio_gpu_obj(gobj);
203
204 ri->size = qobj->base.base.size;
205 ri->res_handle = qobj->hw_res_handle;
206 if (qobj->host3d_blob || qobj->guest_blob)
207 ri->blob_mem = qobj->blob_mem;
208
209 drm_gem_object_put(obj: gobj);
210 return 0;
211}
212
213static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev,
214 void *data,
215 struct drm_file *file)
216{
217 struct virtio_gpu_device *vgdev = dev->dev_private;
218 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
219 struct drm_virtgpu_3d_transfer_from_host *args = data;
220 struct virtio_gpu_object *bo;
221 struct virtio_gpu_object_array *objs;
222 struct virtio_gpu_fence *fence;
223 int ret;
224 u32 offset = args->offset;
225
226 if (vgdev->has_virgl_3d == false)
227 return -ENOSYS;
228
229 virtio_gpu_create_context(dev, file);
230 objs = virtio_gpu_array_from_handles(drm_file: file, handles: &args->bo_handle, nents: 1);
231 if (objs == NULL)
232 return -ENOENT;
233
234 bo = gem_to_virtio_gpu_obj(objs->objs[0]);
235 if (bo->guest_blob && !bo->host3d_blob) {
236 ret = -EINVAL;
237 goto err_put_free;
238 }
239
240 if (!bo->host3d_blob && (args->stride || args->layer_stride)) {
241 ret = -EINVAL;
242 goto err_put_free;
243 }
244
245 ret = virtio_gpu_array_lock_resv(objs);
246 if (ret != 0)
247 goto err_put_free;
248
249 fence = virtio_gpu_fence_alloc(vgdev, base_fence_ctx: vgdev->fence_drv.context, ring_idx: 0);
250 if (!fence) {
251 ret = -ENOMEM;
252 goto err_unlock;
253 }
254
255 virtio_gpu_cmd_transfer_from_host_3d
256 (vgdev, ctx_id: vfpriv->ctx_id, offset, level: args->level, stride: args->stride,
257 layer_stride: args->layer_stride, box: &args->box, objs, fence);
258 dma_fence_put(fence: &fence->f);
259 virtio_gpu_notify(vgdev);
260 return 0;
261
262err_unlock:
263 virtio_gpu_array_unlock_resv(objs);
264err_put_free:
265 virtio_gpu_array_put_free(objs);
266 return ret;
267}
268
269static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
270 struct drm_file *file)
271{
272 struct virtio_gpu_device *vgdev = dev->dev_private;
273 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
274 struct drm_virtgpu_3d_transfer_to_host *args = data;
275 struct virtio_gpu_object *bo;
276 struct virtio_gpu_object_array *objs;
277 struct virtio_gpu_fence *fence;
278 int ret;
279 u32 offset = args->offset;
280
281 objs = virtio_gpu_array_from_handles(drm_file: file, handles: &args->bo_handle, nents: 1);
282 if (objs == NULL)
283 return -ENOENT;
284
285 bo = gem_to_virtio_gpu_obj(objs->objs[0]);
286 if (bo->guest_blob && !bo->host3d_blob) {
287 ret = -EINVAL;
288 goto err_put_free;
289 }
290
291 if (!vgdev->has_virgl_3d) {
292 virtio_gpu_cmd_transfer_to_host_2d
293 (vgdev, offset,
294 width: args->box.w, height: args->box.h, x: args->box.x, y: args->box.y,
295 objs, NULL);
296 } else {
297 virtio_gpu_create_context(dev, file);
298
299 if (!bo->host3d_blob && (args->stride || args->layer_stride)) {
300 ret = -EINVAL;
301 goto err_put_free;
302 }
303
304 ret = virtio_gpu_array_lock_resv(objs);
305 if (ret != 0)
306 goto err_put_free;
307
308 ret = -ENOMEM;
309 fence = virtio_gpu_fence_alloc(vgdev, base_fence_ctx: vgdev->fence_drv.context,
310 ring_idx: 0);
311 if (!fence)
312 goto err_unlock;
313
314 virtio_gpu_cmd_transfer_to_host_3d
315 (vgdev,
316 ctx_id: vfpriv ? vfpriv->ctx_id : 0, offset, level: args->level,
317 stride: args->stride, layer_stride: args->layer_stride, box: &args->box, objs,
318 fence);
319 dma_fence_put(fence: &fence->f);
320 }
321 virtio_gpu_notify(vgdev);
322 return 0;
323
324err_unlock:
325 virtio_gpu_array_unlock_resv(objs);
326err_put_free:
327 virtio_gpu_array_put_free(objs);
328 return ret;
329}
330
331static int virtio_gpu_wait_ioctl(struct drm_device *dev, void *data,
332 struct drm_file *file)
333{
334 struct drm_virtgpu_3d_wait *args = data;
335 struct drm_gem_object *obj;
336 long timeout = 15 * HZ;
337 int ret;
338
339 obj = drm_gem_object_lookup(filp: file, handle: args->handle);
340 if (obj == NULL)
341 return -ENOENT;
342
343 if (args->flags & VIRTGPU_WAIT_NOWAIT) {
344 ret = dma_resv_test_signaled(obj: obj->resv, usage: DMA_RESV_USAGE_READ);
345 } else {
346 ret = dma_resv_wait_timeout(obj: obj->resv, usage: DMA_RESV_USAGE_READ,
347 intr: true, timeout);
348 }
349 if (ret == 0)
350 ret = -EBUSY;
351 else if (ret > 0)
352 ret = 0;
353
354 drm_gem_object_put(obj);
355 return ret;
356}
357
358static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
359 void *data, struct drm_file *file)
360{
361 struct virtio_gpu_device *vgdev = dev->dev_private;
362 struct drm_virtgpu_get_caps *args = data;
363 unsigned size, host_caps_size;
364 int i;
365 int found_valid = -1;
366 int ret;
367 struct virtio_gpu_drv_cap_cache *cache_ent;
368 void *ptr;
369
370 if (vgdev->num_capsets == 0)
371 return -ENOSYS;
372
373 /* don't allow userspace to pass 0 */
374 if (args->size == 0)
375 return -EINVAL;
376
377 spin_lock(lock: &vgdev->display_info_lock);
378 for (i = 0; i < vgdev->num_capsets; i++) {
379 if (vgdev->capsets[i].id == args->cap_set_id) {
380 if (vgdev->capsets[i].max_version >= args->cap_set_ver) {
381 found_valid = i;
382 break;
383 }
384 }
385 }
386
387 if (found_valid == -1) {
388 spin_unlock(lock: &vgdev->display_info_lock);
389 return -EINVAL;
390 }
391
392 host_caps_size = vgdev->capsets[found_valid].max_size;
393 /* only copy to user the minimum of the host caps size or the guest caps size */
394 size = min(args->size, host_caps_size);
395
396 list_for_each_entry(cache_ent, &vgdev->cap_cache, head) {
397 if (cache_ent->id == args->cap_set_id &&
398 cache_ent->version == args->cap_set_ver) {
399 spin_unlock(lock: &vgdev->display_info_lock);
400 goto copy_exit;
401 }
402 }
403 spin_unlock(lock: &vgdev->display_info_lock);
404
405 /* not in cache - need to talk to hw */
406 ret = virtio_gpu_cmd_get_capset(vgdev, idx: found_valid, version: args->cap_set_ver,
407 cache_p: &cache_ent);
408 if (ret)
409 return ret;
410 virtio_gpu_notify(vgdev);
411
412copy_exit:
413 ret = wait_event_timeout(vgdev->resp_wq,
414 atomic_read(&cache_ent->is_valid), 5 * HZ);
415 if (!ret)
416 return -EBUSY;
417
418 /* is_valid check must proceed before copy of the cache entry. */
419 smp_rmb();
420
421 ptr = cache_ent->caps_cache;
422
423 if (copy_to_user(u64_to_user_ptr(args->addr), from: ptr, n: size))
424 return -EFAULT;
425
426 return 0;
427}
428
429static int verify_blob(struct virtio_gpu_device *vgdev,
430 struct virtio_gpu_fpriv *vfpriv,
431 struct virtio_gpu_object_params *params,
432 struct drm_virtgpu_resource_create_blob *rc_blob,
433 bool *guest_blob, bool *host3d_blob)
434{
435 if (!vgdev->has_resource_blob)
436 return -EINVAL;
437
438 if (rc_blob->blob_flags & ~VIRTGPU_BLOB_FLAG_USE_MASK)
439 return -EINVAL;
440
441 if (rc_blob->blob_flags & VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE) {
442 if (!vgdev->has_resource_assign_uuid)
443 return -EINVAL;
444 }
445
446 switch (rc_blob->blob_mem) {
447 case VIRTGPU_BLOB_MEM_GUEST:
448 *guest_blob = true;
449 break;
450 case VIRTGPU_BLOB_MEM_HOST3D_GUEST:
451 *guest_blob = true;
452 fallthrough;
453 case VIRTGPU_BLOB_MEM_HOST3D:
454 *host3d_blob = true;
455 break;
456 default:
457 return -EINVAL;
458 }
459
460 if (*host3d_blob) {
461 if (!vgdev->has_virgl_3d)
462 return -EINVAL;
463
464 /* Must be dword aligned. */
465 if (rc_blob->cmd_size % 4 != 0)
466 return -EINVAL;
467
468 params->ctx_id = vfpriv->ctx_id;
469 params->blob_id = rc_blob->blob_id;
470 } else {
471 if (rc_blob->blob_id != 0)
472 return -EINVAL;
473
474 if (rc_blob->cmd_size != 0)
475 return -EINVAL;
476 }
477
478 params->blob_mem = rc_blob->blob_mem;
479 params->size = rc_blob->size;
480 params->blob = true;
481 params->blob_flags = rc_blob->blob_flags;
482 return 0;
483}
484
485static int virtio_gpu_resource_create_blob_ioctl(struct drm_device *dev,
486 void *data,
487 struct drm_file *file)
488{
489 int ret = 0;
490 uint32_t handle = 0;
491 bool guest_blob = false;
492 bool host3d_blob = false;
493 struct drm_gem_object *obj;
494 struct virtio_gpu_object *bo;
495 struct virtio_gpu_object_params params = { 0 };
496 struct virtio_gpu_device *vgdev = dev->dev_private;
497 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
498 struct drm_virtgpu_resource_create_blob *rc_blob = data;
499
500 if (verify_blob(vgdev, vfpriv, params: &params, rc_blob,
501 guest_blob: &guest_blob, host3d_blob: &host3d_blob))
502 return -EINVAL;
503
504 if (vgdev->has_virgl_3d)
505 virtio_gpu_create_context(dev, file);
506
507 if (rc_blob->cmd_size) {
508 void *buf;
509
510 buf = memdup_user(u64_to_user_ptr(rc_blob->cmd),
511 rc_blob->cmd_size);
512
513 if (IS_ERR(ptr: buf))
514 return PTR_ERR(ptr: buf);
515
516 virtio_gpu_cmd_submit(vgdev, data: buf, data_size: rc_blob->cmd_size,
517 ctx_id: vfpriv->ctx_id, NULL, NULL);
518 }
519
520 if (guest_blob)
521 ret = virtio_gpu_object_create(vgdev, params: &params, bo_ptr: &bo, NULL);
522 else if (!guest_blob && host3d_blob)
523 ret = virtio_gpu_vram_create(vgdev, params: &params, bo_ptr: &bo);
524 else
525 return -EINVAL;
526
527 if (ret < 0)
528 return ret;
529
530 bo->guest_blob = guest_blob;
531 bo->host3d_blob = host3d_blob;
532 bo->blob_mem = rc_blob->blob_mem;
533 bo->blob_flags = rc_blob->blob_flags;
534
535 obj = &bo->base.base;
536 if (params.blob_flags & VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE) {
537 ret = virtio_gpu_resource_assign_uuid(vgdev, bo);
538 if (ret) {
539 drm_gem_object_release(obj);
540 return ret;
541 }
542 }
543
544 ret = drm_gem_handle_create(file_priv: file, obj, handlep: &handle);
545 if (ret) {
546 drm_gem_object_release(obj);
547 return ret;
548 }
549
550 rc_blob->res_handle = bo->hw_res_handle;
551 rc_blob->bo_handle = handle;
552
553 /*
554 * The handle owns the reference now. But we must drop our
555 * remaining reference *after* we no longer need to dereference
556 * the obj. Otherwise userspace could guess the handle and
557 * race closing it from another thread.
558 */
559 drm_gem_object_put(obj);
560
561 return 0;
562}
563
564static int virtio_gpu_context_init_ioctl(struct drm_device *dev,
565 void *data, struct drm_file *file)
566{
567 int ret = 0;
568 uint32_t num_params, i, param, value;
569 uint64_t valid_ring_mask;
570 size_t len;
571 struct drm_virtgpu_context_set_param *ctx_set_params = NULL;
572 struct virtio_gpu_device *vgdev = dev->dev_private;
573 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
574 struct drm_virtgpu_context_init *args = data;
575
576 num_params = args->num_params;
577 len = num_params * sizeof(struct drm_virtgpu_context_set_param);
578
579 if (!vgdev->has_context_init || !vgdev->has_virgl_3d)
580 return -EINVAL;
581
582 /* Number of unique parameters supported at this time. */
583 if (num_params > 3)
584 return -EINVAL;
585
586 ctx_set_params = memdup_user(u64_to_user_ptr(args->ctx_set_params),
587 len);
588
589 if (IS_ERR(ptr: ctx_set_params))
590 return PTR_ERR(ptr: ctx_set_params);
591
592 mutex_lock(&vfpriv->context_lock);
593 if (vfpriv->context_created) {
594 ret = -EEXIST;
595 goto out_unlock;
596 }
597
598 for (i = 0; i < num_params; i++) {
599 param = ctx_set_params[i].param;
600 value = ctx_set_params[i].value;
601
602 switch (param) {
603 case VIRTGPU_CONTEXT_PARAM_CAPSET_ID:
604 if (value > MAX_CAPSET_ID) {
605 ret = -EINVAL;
606 goto out_unlock;
607 }
608
609 if ((vgdev->capset_id_mask & (1ULL << value)) == 0) {
610 ret = -EINVAL;
611 goto out_unlock;
612 }
613
614 /* Context capset ID already set */
615 if (vfpriv->context_init &
616 VIRTIO_GPU_CONTEXT_INIT_CAPSET_ID_MASK) {
617 ret = -EINVAL;
618 goto out_unlock;
619 }
620
621 vfpriv->context_init |= value;
622 break;
623 case VIRTGPU_CONTEXT_PARAM_NUM_RINGS:
624 if (vfpriv->base_fence_ctx) {
625 ret = -EINVAL;
626 goto out_unlock;
627 }
628
629 if (value > MAX_RINGS) {
630 ret = -EINVAL;
631 goto out_unlock;
632 }
633
634 vfpriv->base_fence_ctx = dma_fence_context_alloc(num: value);
635 vfpriv->num_rings = value;
636 break;
637 case VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK:
638 if (vfpriv->ring_idx_mask) {
639 ret = -EINVAL;
640 goto out_unlock;
641 }
642
643 vfpriv->ring_idx_mask = value;
644 break;
645 default:
646 ret = -EINVAL;
647 goto out_unlock;
648 }
649 }
650
651 if (vfpriv->ring_idx_mask) {
652 valid_ring_mask = 0;
653 for (i = 0; i < vfpriv->num_rings; i++)
654 valid_ring_mask |= 1ULL << i;
655
656 if (~valid_ring_mask & vfpriv->ring_idx_mask) {
657 ret = -EINVAL;
658 goto out_unlock;
659 }
660 }
661
662 virtio_gpu_create_context_locked(vgdev, vfpriv);
663 virtio_gpu_notify(vgdev);
664
665out_unlock:
666 mutex_unlock(lock: &vfpriv->context_lock);
667 kfree(objp: ctx_set_params);
668 return ret;
669}
670
671struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS] = {
672 DRM_IOCTL_DEF_DRV(VIRTGPU_MAP, virtio_gpu_map_ioctl,
673 DRM_RENDER_ALLOW),
674
675 DRM_IOCTL_DEF_DRV(VIRTGPU_EXECBUFFER, virtio_gpu_execbuffer_ioctl,
676 DRM_RENDER_ALLOW),
677
678 DRM_IOCTL_DEF_DRV(VIRTGPU_GETPARAM, virtio_gpu_getparam_ioctl,
679 DRM_RENDER_ALLOW),
680
681 DRM_IOCTL_DEF_DRV(VIRTGPU_RESOURCE_CREATE,
682 virtio_gpu_resource_create_ioctl,
683 DRM_RENDER_ALLOW),
684
685 DRM_IOCTL_DEF_DRV(VIRTGPU_RESOURCE_INFO, virtio_gpu_resource_info_ioctl,
686 DRM_RENDER_ALLOW),
687
688 /* make transfer async to the main ring? - no sure, can we
689 * thread these in the underlying GL
690 */
691 DRM_IOCTL_DEF_DRV(VIRTGPU_TRANSFER_FROM_HOST,
692 virtio_gpu_transfer_from_host_ioctl,
693 DRM_RENDER_ALLOW),
694 DRM_IOCTL_DEF_DRV(VIRTGPU_TRANSFER_TO_HOST,
695 virtio_gpu_transfer_to_host_ioctl,
696 DRM_RENDER_ALLOW),
697
698 DRM_IOCTL_DEF_DRV(VIRTGPU_WAIT, virtio_gpu_wait_ioctl,
699 DRM_RENDER_ALLOW),
700
701 DRM_IOCTL_DEF_DRV(VIRTGPU_GET_CAPS, virtio_gpu_get_caps_ioctl,
702 DRM_RENDER_ALLOW),
703
704 DRM_IOCTL_DEF_DRV(VIRTGPU_RESOURCE_CREATE_BLOB,
705 virtio_gpu_resource_create_blob_ioctl,
706 DRM_RENDER_ALLOW),
707
708 DRM_IOCTL_DEF_DRV(VIRTGPU_CONTEXT_INIT, virtio_gpu_context_init_ioctl,
709 DRM_RENDER_ALLOW),
710};
711

source code of linux/drivers/gpu/drm/virtio/virtgpu_ioctl.c