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1/*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alex Deucher
26 * Jerome Glisse
27 */
28#include <drm/drmP.h>
29#include <drm/radeon_drm.h>
30#include "radeon.h"
31
32void radeon_gem_object_free(struct drm_gem_object *gobj)
33{
34 struct radeon_bo *robj = gem_to_radeon_bo(gobj);
35
36 if (robj) {
37 if (robj->gem_base.import_attach)
38 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
39 radeon_mn_unregister(robj);
40 radeon_bo_unref(&robj);
41 }
42}
43
44int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size,
45 int alignment, int initial_domain,
46 u32 flags, bool kernel,
47 struct drm_gem_object **obj)
48{
49 struct radeon_bo *robj;
50 unsigned long max_size;
51 int r;
52
53 *obj = NULL;
54 /* At least align on page size */
55 if (alignment < PAGE_SIZE) {
56 alignment = PAGE_SIZE;
57 }
58
59 /* Maximum bo size is the unpinned gtt size since we use the gtt to
60 * handle vram to system pool migrations.
61 */
62 max_size = rdev->mc.gtt_size - rdev->gart_pin_size;
63 if (size > max_size) {
64 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
65 size >> 20, max_size >> 20);
66 return -ENOMEM;
67 }
68
69retry:
70 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain,
71 flags, NULL, NULL, &robj);
72 if (r) {
73 if (r != -ERESTARTSYS) {
74 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
75 initial_domain |= RADEON_GEM_DOMAIN_GTT;
76 goto retry;
77 }
78 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
79 size, initial_domain, alignment, r);
80 }
81 return r;
82 }
83 *obj = &robj->gem_base;
84 robj->pid = task_pid_nr(current);
85
86 mutex_lock(&rdev->gem.mutex);
87 list_add_tail(&robj->list, &rdev->gem.objects);
88 mutex_unlock(&rdev->gem.mutex);
89
90 return 0;
91}
92
93static int radeon_gem_set_domain(struct drm_gem_object *gobj,
94 uint32_t rdomain, uint32_t wdomain)
95{
96 struct radeon_bo *robj;
97 uint32_t domain;
98 long r;
99
100 /* FIXME: reeimplement */
101 robj = gem_to_radeon_bo(gobj);
102 /* work out where to validate the buffer to */
103 domain = wdomain;
104 if (!domain) {
105 domain = rdomain;
106 }
107 if (!domain) {
108 /* Do nothings */
109 printk(KERN_WARNING "Set domain without domain !\n");
110 return 0;
111 }
112 if (domain == RADEON_GEM_DOMAIN_CPU) {
113 /* Asking for cpu access wait for object idle */
114 r = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, 30 * HZ);
115 if (!r)
116 r = -EBUSY;
117
118 if (r < 0 && r != -EINTR) {
119 printk(KERN_ERR "Failed to wait for object: %li\n", r);
120 return r;
121 }
122 }
123 return 0;
124}
125
126int radeon_gem_init(struct radeon_device *rdev)
127{
128 INIT_LIST_HEAD(&rdev->gem.objects);
129 return 0;
130}
131
132void radeon_gem_fini(struct radeon_device *rdev)
133{
134 radeon_bo_force_delete(rdev);
135}
136
137/*
138 * Call from drm_gem_handle_create which appear in both new and open ioctl
139 * case.
140 */
141int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
142{
143 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
144 struct radeon_device *rdev = rbo->rdev;
145 struct radeon_fpriv *fpriv = file_priv->driver_priv;
146 struct radeon_vm *vm = &fpriv->vm;
147 struct radeon_bo_va *bo_va;
148 int r;
149
150 if ((rdev->family < CHIP_CAYMAN) ||
151 (!rdev->accel_working)) {
152 return 0;
153 }
154
155 r = radeon_bo_reserve(rbo, false);
156 if (r) {
157 return r;
158 }
159
160 bo_va = radeon_vm_bo_find(vm, rbo);
161 if (!bo_va) {
162 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
163 } else {
164 ++bo_va->ref_count;
165 }
166 radeon_bo_unreserve(rbo);
167
168 return 0;
169}
170
171void radeon_gem_object_close(struct drm_gem_object *obj,
172 struct drm_file *file_priv)
173{
174 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
175 struct radeon_device *rdev = rbo->rdev;
176 struct radeon_fpriv *fpriv = file_priv->driver_priv;
177 struct radeon_vm *vm = &fpriv->vm;
178 struct radeon_bo_va *bo_va;
179 int r;
180
181 if ((rdev->family < CHIP_CAYMAN) ||
182 (!rdev->accel_working)) {
183 return;
184 }
185
186 r = radeon_bo_reserve(rbo, true);
187 if (r) {
188 dev_err(rdev->dev, "leaking bo va because "
189 "we fail to reserve bo (%d)\n", r);
190 return;
191 }
192 bo_va = radeon_vm_bo_find(vm, rbo);
193 if (bo_va) {
194 if (--bo_va->ref_count == 0) {
195 radeon_vm_bo_rmv(rdev, bo_va);
196 }
197 }
198 radeon_bo_unreserve(rbo);
199}
200
201static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
202{
203 if (r == -EDEADLK) {
204 r = radeon_gpu_reset(rdev);
205 if (!r)
206 r = -EAGAIN;
207 }
208 return r;
209}
210
211/*
212 * GEM ioctls.
213 */
214int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
215 struct drm_file *filp)
216{
217 struct radeon_device *rdev = dev->dev_private;
218 struct drm_radeon_gem_info *args = data;
219 struct ttm_mem_type_manager *man;
220
221 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
222
223 args->vram_size = rdev->mc.real_vram_size;
224 args->vram_visible = (u64)man->size << PAGE_SHIFT;
225 args->vram_visible -= rdev->vram_pin_size;
226 args->gart_size = rdev->mc.gtt_size;
227 args->gart_size -= rdev->gart_pin_size;
228
229 return 0;
230}
231
232int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
233 struct drm_file *filp)
234{
235 /* TODO: implement */
236 DRM_ERROR("unimplemented %s\n", __func__);
237 return -ENOSYS;
238}
239
240int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
241 struct drm_file *filp)
242{
243 /* TODO: implement */
244 DRM_ERROR("unimplemented %s\n", __func__);
245 return -ENOSYS;
246}
247
248int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
249 struct drm_file *filp)
250{
251 struct radeon_device *rdev = dev->dev_private;
252 struct drm_radeon_gem_create *args = data;
253 struct drm_gem_object *gobj;
254 uint32_t handle;
255 int r;
256
257 down_read(&rdev->exclusive_lock);
258 /* create a gem object to contain this object in */
259 args->size = roundup(args->size, PAGE_SIZE);
260 r = radeon_gem_object_create(rdev, args->size, args->alignment,
261 args->initial_domain, args->flags,
262 false, &gobj);
263 if (r) {
264 up_read(&rdev->exclusive_lock);
265 r = radeon_gem_handle_lockup(rdev, r);
266 return r;
267 }
268 r = drm_gem_handle_create(filp, gobj, &handle);
269 /* drop reference from allocate - handle holds it now */
270 drm_gem_object_unreference_unlocked(gobj);
271 if (r) {
272 up_read(&rdev->exclusive_lock);
273 r = radeon_gem_handle_lockup(rdev, r);
274 return r;
275 }
276 args->handle = handle;
277 up_read(&rdev->exclusive_lock);
278 return 0;
279}
280
281int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
282 struct drm_file *filp)
283{
284 struct radeon_device *rdev = dev->dev_private;
285 struct drm_radeon_gem_userptr *args = data;
286 struct drm_gem_object *gobj;
287 struct radeon_bo *bo;
288 uint32_t handle;
289 int r;
290
291 if (offset_in_page(args->addr | args->size))
292 return -EINVAL;
293
294 /* reject unknown flag values */
295 if (args->flags & ~(RADEON_GEM_USERPTR_READONLY |
296 RADEON_GEM_USERPTR_ANONONLY | RADEON_GEM_USERPTR_VALIDATE |
297 RADEON_GEM_USERPTR_REGISTER))
298 return -EINVAL;
299
300 if (args->flags & RADEON_GEM_USERPTR_READONLY) {
301 /* readonly pages not tested on older hardware */
302 if (rdev->family < CHIP_R600)
303 return -EINVAL;
304
305 } else if (!(args->flags & RADEON_GEM_USERPTR_ANONONLY) ||
306 !(args->flags & RADEON_GEM_USERPTR_REGISTER)) {
307
308 /* if we want to write to it we must require anonymous
309 memory and install a MMU notifier */
310 return -EACCES;
311 }
312
313 down_read(&rdev->exclusive_lock);
314
315 /* create a gem object to contain this object in */
316 r = radeon_gem_object_create(rdev, args->size, 0,
317 RADEON_GEM_DOMAIN_CPU, 0,
318 false, &gobj);
319 if (r)
320 goto handle_lockup;
321
322 bo = gem_to_radeon_bo(gobj);
323 r = radeon_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
324 if (r)
325 goto release_object;
326
327 if (args->flags & RADEON_GEM_USERPTR_REGISTER) {
328 r = radeon_mn_register(bo, args->addr);
329 if (r)
330 goto release_object;
331 }
332
333 if (args->flags & RADEON_GEM_USERPTR_VALIDATE) {
334 down_read(¤t->mm->mmap_sem);
335 r = radeon_bo_reserve(bo, true);
336 if (r) {
337 up_read(¤t->mm->mmap_sem);
338 goto release_object;
339 }
340
341 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT);
342 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
343 radeon_bo_unreserve(bo);
344 up_read(¤t->mm->mmap_sem);
345 if (r)
346 goto release_object;
347 }
348
349 r = drm_gem_handle_create(filp, gobj, &handle);
350 /* drop reference from allocate - handle holds it now */
351 drm_gem_object_unreference_unlocked(gobj);
352 if (r)
353 goto handle_lockup;
354
355 args->handle = handle;
356 up_read(&rdev->exclusive_lock);
357 return 0;
358
359release_object:
360 drm_gem_object_unreference_unlocked(gobj);
361
362handle_lockup:
363 up_read(&rdev->exclusive_lock);
364 r = radeon_gem_handle_lockup(rdev, r);
365
366 return r;
367}
368
369int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
370 struct drm_file *filp)
371{
372 /* transition the BO to a domain -
373 * just validate the BO into a certain domain */
374 struct radeon_device *rdev = dev->dev_private;
375 struct drm_radeon_gem_set_domain *args = data;
376 struct drm_gem_object *gobj;
377 struct radeon_bo *robj;
378 int r;
379
380 /* for now if someone requests domain CPU -
381 * just make sure the buffer is finished with */
382 down_read(&rdev->exclusive_lock);
383
384 /* just do a BO wait for now */
385 gobj = drm_gem_object_lookup(dev, filp, args->handle);
386 if (gobj == NULL) {
387 up_read(&rdev->exclusive_lock);
388 return -ENOENT;
389 }
390 robj = gem_to_radeon_bo(gobj);
391
392 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
393
394 drm_gem_object_unreference_unlocked(gobj);
395 up_read(&rdev->exclusive_lock);
396 r = radeon_gem_handle_lockup(robj->rdev, r);
397 return r;
398}
399
400int radeon_mode_dumb_mmap(struct drm_file *filp,
401 struct drm_device *dev,
402 uint32_t handle, uint64_t *offset_p)
403{
404 struct drm_gem_object *gobj;
405 struct radeon_bo *robj;
406
407 gobj = drm_gem_object_lookup(dev, filp, handle);
408 if (gobj == NULL) {
409 return -ENOENT;
410 }
411 robj = gem_to_radeon_bo(gobj);
412 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) {
413 drm_gem_object_unreference_unlocked(gobj);
414 return -EPERM;
415 }
416 *offset_p = radeon_bo_mmap_offset(robj);
417 drm_gem_object_unreference_unlocked(gobj);
418 return 0;
419}
420
421int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
422 struct drm_file *filp)
423{
424 struct drm_radeon_gem_mmap *args = data;
425
426 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
427}
428
429int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
430 struct drm_file *filp)
431{
432 struct drm_radeon_gem_busy *args = data;
433 struct drm_gem_object *gobj;
434 struct radeon_bo *robj;
435 int r;
436 uint32_t cur_placement = 0;
437
438 gobj = drm_gem_object_lookup(dev, filp, args->handle);
439 if (gobj == NULL) {
440 return -ENOENT;
441 }
442 robj = gem_to_radeon_bo(gobj);
443
444 r = reservation_object_test_signaled_rcu(robj->tbo.resv, true);
445 if (r == 0)
446 r = -EBUSY;
447 else
448 r = 0;
449
450 cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
451 args->domain = radeon_mem_type_to_domain(cur_placement);
452 drm_gem_object_unreference_unlocked(gobj);
453 return r;
454}
455
456int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
457 struct drm_file *filp)
458{
459 struct radeon_device *rdev = dev->dev_private;
460 struct drm_radeon_gem_wait_idle *args = data;
461 struct drm_gem_object *gobj;
462 struct radeon_bo *robj;
463 int r = 0;
464 uint32_t cur_placement = 0;
465 long ret;
466
467 gobj = drm_gem_object_lookup(dev, filp, args->handle);
468 if (gobj == NULL) {
469 return -ENOENT;
470 }
471 robj = gem_to_radeon_bo(gobj);
472
473 ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, 30 * HZ);
474 if (ret == 0)
475 r = -EBUSY;
476 else if (ret < 0)
477 r = ret;
478
479 /* Flush HDP cache via MMIO if necessary */
480 cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
481 if (rdev->asic->mmio_hdp_flush &&
482 radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
483 robj->rdev->asic->mmio_hdp_flush(rdev);
484 drm_gem_object_unreference_unlocked(gobj);
485 r = radeon_gem_handle_lockup(rdev, r);
486 return r;
487}
488
489int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
490 struct drm_file *filp)
491{
492 struct drm_radeon_gem_set_tiling *args = data;
493 struct drm_gem_object *gobj;
494 struct radeon_bo *robj;
495 int r = 0;
496
497 DRM_DEBUG("%d \n", args->handle);
498 gobj = drm_gem_object_lookup(dev, filp, args->handle);
499 if (gobj == NULL)
500 return -ENOENT;
501 robj = gem_to_radeon_bo(gobj);
502 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
503 drm_gem_object_unreference_unlocked(gobj);
504 return r;
505}
506
507int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
508 struct drm_file *filp)
509{
510 struct drm_radeon_gem_get_tiling *args = data;
511 struct drm_gem_object *gobj;
512 struct radeon_bo *rbo;
513 int r = 0;
514
515 DRM_DEBUG("\n");
516 gobj = drm_gem_object_lookup(dev, filp, args->handle);
517 if (gobj == NULL)
518 return -ENOENT;
519 rbo = gem_to_radeon_bo(gobj);
520 r = radeon_bo_reserve(rbo, false);
521 if (unlikely(r != 0))
522 goto out;
523 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
524 radeon_bo_unreserve(rbo);
525out:
526 drm_gem_object_unreference_unlocked(gobj);
527 return r;
528}
529
530/**
531 * radeon_gem_va_update_vm -update the bo_va in its VM
532 *
533 * @rdev: radeon_device pointer
534 * @bo_va: bo_va to update
535 *
536 * Update the bo_va directly after setting it's address. Errors are not
537 * vital here, so they are not reported back to userspace.
538 */
539static void radeon_gem_va_update_vm(struct radeon_device *rdev,
540 struct radeon_bo_va *bo_va)
541{
542 struct ttm_validate_buffer tv, *entry;
543 struct radeon_bo_list *vm_bos;
544 struct ww_acquire_ctx ticket;
545 struct list_head list;
546 unsigned domain;
547 int r;
548
549 INIT_LIST_HEAD(&list);
550
551 tv.bo = &bo_va->bo->tbo;
552 tv.shared = true;
553 list_add(&tv.head, &list);
554
555 vm_bos = radeon_vm_get_bos(rdev, bo_va->vm, &list);
556 if (!vm_bos)
557 return;
558
559 r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
560 if (r)
561 goto error_free;
562
563 list_for_each_entry(entry, &list, head) {
564 domain = radeon_mem_type_to_domain(entry->bo->mem.mem_type);
565 /* if anything is swapped out don't swap it in here,
566 just abort and wait for the next CS */
567 if (domain == RADEON_GEM_DOMAIN_CPU)
568 goto error_unreserve;
569 }
570
571 mutex_lock(&bo_va->vm->mutex);
572 r = radeon_vm_clear_freed(rdev, bo_va->vm);
573 if (r)
574 goto error_unlock;
575
576 if (bo_va->it.start)
577 r = radeon_vm_bo_update(rdev, bo_va, &bo_va->bo->tbo.mem);
578
579error_unlock:
580 mutex_unlock(&bo_va->vm->mutex);
581
582error_unreserve:
583 ttm_eu_backoff_reservation(&ticket, &list);
584
585error_free:
586 drm_free_large(vm_bos);
587
588 if (r && r != -ERESTARTSYS)
589 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
590}
591
592int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
593 struct drm_file *filp)
594{
595 struct drm_radeon_gem_va *args = data;
596 struct drm_gem_object *gobj;
597 struct radeon_device *rdev = dev->dev_private;
598 struct radeon_fpriv *fpriv = filp->driver_priv;
599 struct radeon_bo *rbo;
600 struct radeon_bo_va *bo_va;
601 u32 invalid_flags;
602 int r = 0;
603
604 if (!rdev->vm_manager.enabled) {
605 args->operation = RADEON_VA_RESULT_ERROR;
606 return -ENOTTY;
607 }
608
609 /* !! DONT REMOVE !!
610 * We don't support vm_id yet, to be sure we don't have have broken
611 * userspace, reject anyone trying to use non 0 value thus moving
612 * forward we can use those fields without breaking existant userspace
613 */
614 if (args->vm_id) {
615 args->operation = RADEON_VA_RESULT_ERROR;
616 return -EINVAL;
617 }
618
619 if (args->offset < RADEON_VA_RESERVED_SIZE) {
620 dev_err(&dev->pdev->dev,
621 "offset 0x%lX is in reserved area 0x%X\n",
622 (unsigned long)args->offset,
623 RADEON_VA_RESERVED_SIZE);
624 args->operation = RADEON_VA_RESULT_ERROR;
625 return -EINVAL;
626 }
627
628 /* don't remove, we need to enforce userspace to set the snooped flag
629 * otherwise we will endup with broken userspace and we won't be able
630 * to enable this feature without adding new interface
631 */
632 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
633 if ((args->flags & invalid_flags)) {
634 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
635 args->flags, invalid_flags);
636 args->operation = RADEON_VA_RESULT_ERROR;
637 return -EINVAL;
638 }
639
640 switch (args->operation) {
641 case RADEON_VA_MAP:
642 case RADEON_VA_UNMAP:
643 break;
644 default:
645 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
646 args->operation);
647 args->operation = RADEON_VA_RESULT_ERROR;
648 return -EINVAL;
649 }
650
651 gobj = drm_gem_object_lookup(dev, filp, args->handle);
652 if (gobj == NULL) {
653 args->operation = RADEON_VA_RESULT_ERROR;
654 return -ENOENT;
655 }
656 rbo = gem_to_radeon_bo(gobj);
657 r = radeon_bo_reserve(rbo, false);
658 if (r) {
659 args->operation = RADEON_VA_RESULT_ERROR;
660 drm_gem_object_unreference_unlocked(gobj);
661 return r;
662 }
663 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
664 if (!bo_va) {
665 args->operation = RADEON_VA_RESULT_ERROR;
666 radeon_bo_unreserve(rbo);
667 drm_gem_object_unreference_unlocked(gobj);
668 return -ENOENT;
669 }
670
671 switch (args->operation) {
672 case RADEON_VA_MAP:
673 if (bo_va->it.start) {
674 args->operation = RADEON_VA_RESULT_VA_EXIST;
675 args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
676 radeon_bo_unreserve(rbo);
677 goto out;
678 }
679 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
680 break;
681 case RADEON_VA_UNMAP:
682 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
683 break;
684 default:
685 break;
686 }
687 if (!r)
688 radeon_gem_va_update_vm(rdev, bo_va);
689 args->operation = RADEON_VA_RESULT_OK;
690 if (r) {
691 args->operation = RADEON_VA_RESULT_ERROR;
692 }
693out:
694 drm_gem_object_unreference_unlocked(gobj);
695 return r;
696}
697
698int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
699 struct drm_file *filp)
700{
701 struct drm_radeon_gem_op *args = data;
702 struct drm_gem_object *gobj;
703 struct radeon_bo *robj;
704 int r;
705
706 gobj = drm_gem_object_lookup(dev, filp, args->handle);
707 if (gobj == NULL) {
708 return -ENOENT;
709 }
710 robj = gem_to_radeon_bo(gobj);
711
712 r = -EPERM;
713 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm))
714 goto out;
715
716 r = radeon_bo_reserve(robj, false);
717 if (unlikely(r))
718 goto out;
719
720 switch (args->op) {
721 case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
722 args->value = robj->initial_domain;
723 break;
724 case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
725 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
726 RADEON_GEM_DOMAIN_GTT |
727 RADEON_GEM_DOMAIN_CPU);
728 break;
729 default:
730 r = -EINVAL;
731 }
732
733 radeon_bo_unreserve(robj);
734out:
735 drm_gem_object_unreference_unlocked(gobj);
736 return r;
737}
738
739int radeon_mode_dumb_create(struct drm_file *file_priv,
740 struct drm_device *dev,
741 struct drm_mode_create_dumb *args)
742{
743 struct radeon_device *rdev = dev->dev_private;
744 struct drm_gem_object *gobj;
745 uint32_t handle;
746 int r;
747
748 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
749 args->size = args->pitch * args->height;
750 args->size = ALIGN(args->size, PAGE_SIZE);
751
752 r = radeon_gem_object_create(rdev, args->size, 0,
753 RADEON_GEM_DOMAIN_VRAM, 0,
754 false, &gobj);
755 if (r)
756 return -ENOMEM;
757
758 r = drm_gem_handle_create(file_priv, gobj, &handle);
759 /* drop reference from allocate - handle holds it now */
760 drm_gem_object_unreference_unlocked(gobj);
761 if (r) {
762 return r;
763 }
764 args->handle = handle;
765 return 0;
766}
767
768#if defined(CONFIG_DEBUG_FS)
769static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
770{
771 struct drm_info_node *node = (struct drm_info_node *)m->private;
772 struct drm_device *dev = node->minor->dev;
773 struct radeon_device *rdev = dev->dev_private;
774 struct radeon_bo *rbo;
775 unsigned i = 0;
776
777 mutex_lock(&rdev->gem.mutex);
778 list_for_each_entry(rbo, &rdev->gem.objects, list) {
779 unsigned domain;
780 const char *placement;
781
782 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
783 switch (domain) {
784 case RADEON_GEM_DOMAIN_VRAM:
785 placement = "VRAM";
786 break;
787 case RADEON_GEM_DOMAIN_GTT:
788 placement = " GTT";
789 break;
790 case RADEON_GEM_DOMAIN_CPU:
791 default:
792 placement = " CPU";
793 break;
794 }
795 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
796 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
797 placement, (unsigned long)rbo->pid);
798 i++;
799 }
800 mutex_unlock(&rdev->gem.mutex);
801 return 0;
802}
803
804static struct drm_info_list radeon_debugfs_gem_list[] = {
805 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
806};
807#endif
808
809int radeon_gem_debugfs_init(struct radeon_device *rdev)
810{
811#if defined(CONFIG_DEBUG_FS)
812 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);
813#endif
814 return 0;
815}
1/*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alex Deucher
26 * Jerome Glisse
27 */
28
29#include <linux/pci.h>
30
31#include <drm/drm_debugfs.h>
32#include <drm/drm_device.h>
33#include <drm/drm_file.h>
34#include <drm/radeon_drm.h>
35
36#include "radeon.h"
37
38void radeon_gem_object_free(struct drm_gem_object *gobj)
39{
40 struct radeon_bo *robj = gem_to_radeon_bo(gobj);
41
42 if (robj) {
43 radeon_mn_unregister(robj);
44 radeon_bo_unref(&robj);
45 }
46}
47
48int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size,
49 int alignment, int initial_domain,
50 u32 flags, bool kernel,
51 struct drm_gem_object **obj)
52{
53 struct radeon_bo *robj;
54 unsigned long max_size;
55 int r;
56
57 *obj = NULL;
58 /* At least align on page size */
59 if (alignment < PAGE_SIZE) {
60 alignment = PAGE_SIZE;
61 }
62
63 /* Maximum bo size is the unpinned gtt size since we use the gtt to
64 * handle vram to system pool migrations.
65 */
66 max_size = rdev->mc.gtt_size - rdev->gart_pin_size;
67 if (size > max_size) {
68 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
69 size >> 20, max_size >> 20);
70 return -ENOMEM;
71 }
72
73retry:
74 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain,
75 flags, NULL, NULL, &robj);
76 if (r) {
77 if (r != -ERESTARTSYS) {
78 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
79 initial_domain |= RADEON_GEM_DOMAIN_GTT;
80 goto retry;
81 }
82 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
83 size, initial_domain, alignment, r);
84 }
85 return r;
86 }
87 *obj = &robj->tbo.base;
88 robj->pid = task_pid_nr(current);
89
90 mutex_lock(&rdev->gem.mutex);
91 list_add_tail(&robj->list, &rdev->gem.objects);
92 mutex_unlock(&rdev->gem.mutex);
93
94 return 0;
95}
96
97static int radeon_gem_set_domain(struct drm_gem_object *gobj,
98 uint32_t rdomain, uint32_t wdomain)
99{
100 struct radeon_bo *robj;
101 uint32_t domain;
102 long r;
103
104 /* FIXME: reeimplement */
105 robj = gem_to_radeon_bo(gobj);
106 /* work out where to validate the buffer to */
107 domain = wdomain;
108 if (!domain) {
109 domain = rdomain;
110 }
111 if (!domain) {
112 /* Do nothings */
113 pr_warn("Set domain without domain !\n");
114 return 0;
115 }
116 if (domain == RADEON_GEM_DOMAIN_CPU) {
117 /* Asking for cpu access wait for object idle */
118 r = dma_resv_wait_timeout_rcu(robj->tbo.base.resv, true, true, 30 * HZ);
119 if (!r)
120 r = -EBUSY;
121
122 if (r < 0 && r != -EINTR) {
123 pr_err("Failed to wait for object: %li\n", r);
124 return r;
125 }
126 }
127 if (domain == RADEON_GEM_DOMAIN_VRAM && robj->prime_shared_count) {
128 /* A BO that is associated with a dma-buf cannot be sensibly migrated to VRAM */
129 return -EINVAL;
130 }
131 return 0;
132}
133
134int radeon_gem_init(struct radeon_device *rdev)
135{
136 INIT_LIST_HEAD(&rdev->gem.objects);
137 return 0;
138}
139
140void radeon_gem_fini(struct radeon_device *rdev)
141{
142 radeon_bo_force_delete(rdev);
143}
144
145/*
146 * Call from drm_gem_handle_create which appear in both new and open ioctl
147 * case.
148 */
149int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
150{
151 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
152 struct radeon_device *rdev = rbo->rdev;
153 struct radeon_fpriv *fpriv = file_priv->driver_priv;
154 struct radeon_vm *vm = &fpriv->vm;
155 struct radeon_bo_va *bo_va;
156 int r;
157
158 if ((rdev->family < CHIP_CAYMAN) ||
159 (!rdev->accel_working)) {
160 return 0;
161 }
162
163 r = radeon_bo_reserve(rbo, false);
164 if (r) {
165 return r;
166 }
167
168 bo_va = radeon_vm_bo_find(vm, rbo);
169 if (!bo_va) {
170 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
171 } else {
172 ++bo_va->ref_count;
173 }
174 radeon_bo_unreserve(rbo);
175
176 return 0;
177}
178
179void radeon_gem_object_close(struct drm_gem_object *obj,
180 struct drm_file *file_priv)
181{
182 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
183 struct radeon_device *rdev = rbo->rdev;
184 struct radeon_fpriv *fpriv = file_priv->driver_priv;
185 struct radeon_vm *vm = &fpriv->vm;
186 struct radeon_bo_va *bo_va;
187 int r;
188
189 if ((rdev->family < CHIP_CAYMAN) ||
190 (!rdev->accel_working)) {
191 return;
192 }
193
194 r = radeon_bo_reserve(rbo, true);
195 if (r) {
196 dev_err(rdev->dev, "leaking bo va because "
197 "we fail to reserve bo (%d)\n", r);
198 return;
199 }
200 bo_va = radeon_vm_bo_find(vm, rbo);
201 if (bo_va) {
202 if (--bo_va->ref_count == 0) {
203 radeon_vm_bo_rmv(rdev, bo_va);
204 }
205 }
206 radeon_bo_unreserve(rbo);
207}
208
209static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
210{
211 if (r == -EDEADLK) {
212 r = radeon_gpu_reset(rdev);
213 if (!r)
214 r = -EAGAIN;
215 }
216 return r;
217}
218
219/*
220 * GEM ioctls.
221 */
222int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
223 struct drm_file *filp)
224{
225 struct radeon_device *rdev = dev->dev_private;
226 struct drm_radeon_gem_info *args = data;
227 struct ttm_mem_type_manager *man;
228
229 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
230
231 args->vram_size = (u64)man->size << PAGE_SHIFT;
232 args->vram_visible = rdev->mc.visible_vram_size;
233 args->vram_visible -= rdev->vram_pin_size;
234 args->gart_size = rdev->mc.gtt_size;
235 args->gart_size -= rdev->gart_pin_size;
236
237 return 0;
238}
239
240int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
241 struct drm_file *filp)
242{
243 /* TODO: implement */
244 DRM_ERROR("unimplemented %s\n", __func__);
245 return -ENOSYS;
246}
247
248int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
249 struct drm_file *filp)
250{
251 /* TODO: implement */
252 DRM_ERROR("unimplemented %s\n", __func__);
253 return -ENOSYS;
254}
255
256int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
257 struct drm_file *filp)
258{
259 struct radeon_device *rdev = dev->dev_private;
260 struct drm_radeon_gem_create *args = data;
261 struct drm_gem_object *gobj;
262 uint32_t handle;
263 int r;
264
265 down_read(&rdev->exclusive_lock);
266 /* create a gem object to contain this object in */
267 args->size = roundup(args->size, PAGE_SIZE);
268 r = radeon_gem_object_create(rdev, args->size, args->alignment,
269 args->initial_domain, args->flags,
270 false, &gobj);
271 if (r) {
272 up_read(&rdev->exclusive_lock);
273 r = radeon_gem_handle_lockup(rdev, r);
274 return r;
275 }
276 r = drm_gem_handle_create(filp, gobj, &handle);
277 /* drop reference from allocate - handle holds it now */
278 drm_gem_object_put(gobj);
279 if (r) {
280 up_read(&rdev->exclusive_lock);
281 r = radeon_gem_handle_lockup(rdev, r);
282 return r;
283 }
284 args->handle = handle;
285 up_read(&rdev->exclusive_lock);
286 return 0;
287}
288
289int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
290 struct drm_file *filp)
291{
292 struct ttm_operation_ctx ctx = { true, false };
293 struct radeon_device *rdev = dev->dev_private;
294 struct drm_radeon_gem_userptr *args = data;
295 struct drm_gem_object *gobj;
296 struct radeon_bo *bo;
297 uint32_t handle;
298 int r;
299
300 args->addr = untagged_addr(args->addr);
301
302 if (offset_in_page(args->addr | args->size))
303 return -EINVAL;
304
305 /* reject unknown flag values */
306 if (args->flags & ~(RADEON_GEM_USERPTR_READONLY |
307 RADEON_GEM_USERPTR_ANONONLY | RADEON_GEM_USERPTR_VALIDATE |
308 RADEON_GEM_USERPTR_REGISTER))
309 return -EINVAL;
310
311 if (args->flags & RADEON_GEM_USERPTR_READONLY) {
312 /* readonly pages not tested on older hardware */
313 if (rdev->family < CHIP_R600)
314 return -EINVAL;
315
316 } else if (!(args->flags & RADEON_GEM_USERPTR_ANONONLY) ||
317 !(args->flags & RADEON_GEM_USERPTR_REGISTER)) {
318
319 /* if we want to write to it we must require anonymous
320 memory and install a MMU notifier */
321 return -EACCES;
322 }
323
324 down_read(&rdev->exclusive_lock);
325
326 /* create a gem object to contain this object in */
327 r = radeon_gem_object_create(rdev, args->size, 0,
328 RADEON_GEM_DOMAIN_CPU, 0,
329 false, &gobj);
330 if (r)
331 goto handle_lockup;
332
333 bo = gem_to_radeon_bo(gobj);
334 r = radeon_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
335 if (r)
336 goto release_object;
337
338 if (args->flags & RADEON_GEM_USERPTR_REGISTER) {
339 r = radeon_mn_register(bo, args->addr);
340 if (r)
341 goto release_object;
342 }
343
344 if (args->flags & RADEON_GEM_USERPTR_VALIDATE) {
345 mmap_read_lock(current->mm);
346 r = radeon_bo_reserve(bo, true);
347 if (r) {
348 mmap_read_unlock(current->mm);
349 goto release_object;
350 }
351
352 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT);
353 r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
354 radeon_bo_unreserve(bo);
355 mmap_read_unlock(current->mm);
356 if (r)
357 goto release_object;
358 }
359
360 r = drm_gem_handle_create(filp, gobj, &handle);
361 /* drop reference from allocate - handle holds it now */
362 drm_gem_object_put(gobj);
363 if (r)
364 goto handle_lockup;
365
366 args->handle = handle;
367 up_read(&rdev->exclusive_lock);
368 return 0;
369
370release_object:
371 drm_gem_object_put(gobj);
372
373handle_lockup:
374 up_read(&rdev->exclusive_lock);
375 r = radeon_gem_handle_lockup(rdev, r);
376
377 return r;
378}
379
380int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
381 struct drm_file *filp)
382{
383 /* transition the BO to a domain -
384 * just validate the BO into a certain domain */
385 struct radeon_device *rdev = dev->dev_private;
386 struct drm_radeon_gem_set_domain *args = data;
387 struct drm_gem_object *gobj;
388 struct radeon_bo *robj;
389 int r;
390
391 /* for now if someone requests domain CPU -
392 * just make sure the buffer is finished with */
393 down_read(&rdev->exclusive_lock);
394
395 /* just do a BO wait for now */
396 gobj = drm_gem_object_lookup(filp, args->handle);
397 if (gobj == NULL) {
398 up_read(&rdev->exclusive_lock);
399 return -ENOENT;
400 }
401 robj = gem_to_radeon_bo(gobj);
402
403 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
404
405 drm_gem_object_put(gobj);
406 up_read(&rdev->exclusive_lock);
407 r = radeon_gem_handle_lockup(robj->rdev, r);
408 return r;
409}
410
411int radeon_mode_dumb_mmap(struct drm_file *filp,
412 struct drm_device *dev,
413 uint32_t handle, uint64_t *offset_p)
414{
415 struct drm_gem_object *gobj;
416 struct radeon_bo *robj;
417
418 gobj = drm_gem_object_lookup(filp, handle);
419 if (gobj == NULL) {
420 return -ENOENT;
421 }
422 robj = gem_to_radeon_bo(gobj);
423 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) {
424 drm_gem_object_put(gobj);
425 return -EPERM;
426 }
427 *offset_p = radeon_bo_mmap_offset(robj);
428 drm_gem_object_put(gobj);
429 return 0;
430}
431
432int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
433 struct drm_file *filp)
434{
435 struct drm_radeon_gem_mmap *args = data;
436
437 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
438}
439
440int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
441 struct drm_file *filp)
442{
443 struct drm_radeon_gem_busy *args = data;
444 struct drm_gem_object *gobj;
445 struct radeon_bo *robj;
446 int r;
447 uint32_t cur_placement = 0;
448
449 gobj = drm_gem_object_lookup(filp, args->handle);
450 if (gobj == NULL) {
451 return -ENOENT;
452 }
453 robj = gem_to_radeon_bo(gobj);
454
455 r = dma_resv_test_signaled_rcu(robj->tbo.base.resv, true);
456 if (r == 0)
457 r = -EBUSY;
458 else
459 r = 0;
460
461 cur_placement = READ_ONCE(robj->tbo.mem.mem_type);
462 args->domain = radeon_mem_type_to_domain(cur_placement);
463 drm_gem_object_put(gobj);
464 return r;
465}
466
467int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
468 struct drm_file *filp)
469{
470 struct radeon_device *rdev = dev->dev_private;
471 struct drm_radeon_gem_wait_idle *args = data;
472 struct drm_gem_object *gobj;
473 struct radeon_bo *robj;
474 int r = 0;
475 uint32_t cur_placement = 0;
476 long ret;
477
478 gobj = drm_gem_object_lookup(filp, args->handle);
479 if (gobj == NULL) {
480 return -ENOENT;
481 }
482 robj = gem_to_radeon_bo(gobj);
483
484 ret = dma_resv_wait_timeout_rcu(robj->tbo.base.resv, true, true, 30 * HZ);
485 if (ret == 0)
486 r = -EBUSY;
487 else if (ret < 0)
488 r = ret;
489
490 /* Flush HDP cache via MMIO if necessary */
491 cur_placement = READ_ONCE(robj->tbo.mem.mem_type);
492 if (rdev->asic->mmio_hdp_flush &&
493 radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
494 robj->rdev->asic->mmio_hdp_flush(rdev);
495 drm_gem_object_put(gobj);
496 r = radeon_gem_handle_lockup(rdev, r);
497 return r;
498}
499
500int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
501 struct drm_file *filp)
502{
503 struct drm_radeon_gem_set_tiling *args = data;
504 struct drm_gem_object *gobj;
505 struct radeon_bo *robj;
506 int r = 0;
507
508 DRM_DEBUG("%d \n", args->handle);
509 gobj = drm_gem_object_lookup(filp, args->handle);
510 if (gobj == NULL)
511 return -ENOENT;
512 robj = gem_to_radeon_bo(gobj);
513 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
514 drm_gem_object_put(gobj);
515 return r;
516}
517
518int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
519 struct drm_file *filp)
520{
521 struct drm_radeon_gem_get_tiling *args = data;
522 struct drm_gem_object *gobj;
523 struct radeon_bo *rbo;
524 int r = 0;
525
526 DRM_DEBUG("\n");
527 gobj = drm_gem_object_lookup(filp, args->handle);
528 if (gobj == NULL)
529 return -ENOENT;
530 rbo = gem_to_radeon_bo(gobj);
531 r = radeon_bo_reserve(rbo, false);
532 if (unlikely(r != 0))
533 goto out;
534 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
535 radeon_bo_unreserve(rbo);
536out:
537 drm_gem_object_put(gobj);
538 return r;
539}
540
541/**
542 * radeon_gem_va_update_vm -update the bo_va in its VM
543 *
544 * @rdev: radeon_device pointer
545 * @bo_va: bo_va to update
546 *
547 * Update the bo_va directly after setting it's address. Errors are not
548 * vital here, so they are not reported back to userspace.
549 */
550static void radeon_gem_va_update_vm(struct radeon_device *rdev,
551 struct radeon_bo_va *bo_va)
552{
553 struct ttm_validate_buffer tv, *entry;
554 struct radeon_bo_list *vm_bos;
555 struct ww_acquire_ctx ticket;
556 struct list_head list;
557 unsigned domain;
558 int r;
559
560 INIT_LIST_HEAD(&list);
561
562 tv.bo = &bo_va->bo->tbo;
563 tv.num_shared = 1;
564 list_add(&tv.head, &list);
565
566 vm_bos = radeon_vm_get_bos(rdev, bo_va->vm, &list);
567 if (!vm_bos)
568 return;
569
570 r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
571 if (r)
572 goto error_free;
573
574 list_for_each_entry(entry, &list, head) {
575 domain = radeon_mem_type_to_domain(entry->bo->mem.mem_type);
576 /* if anything is swapped out don't swap it in here,
577 just abort and wait for the next CS */
578 if (domain == RADEON_GEM_DOMAIN_CPU)
579 goto error_unreserve;
580 }
581
582 mutex_lock(&bo_va->vm->mutex);
583 r = radeon_vm_clear_freed(rdev, bo_va->vm);
584 if (r)
585 goto error_unlock;
586
587 if (bo_va->it.start)
588 r = radeon_vm_bo_update(rdev, bo_va, &bo_va->bo->tbo.mem);
589
590error_unlock:
591 mutex_unlock(&bo_va->vm->mutex);
592
593error_unreserve:
594 ttm_eu_backoff_reservation(&ticket, &list);
595
596error_free:
597 kvfree(vm_bos);
598
599 if (r && r != -ERESTARTSYS)
600 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
601}
602
603int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
604 struct drm_file *filp)
605{
606 struct drm_radeon_gem_va *args = data;
607 struct drm_gem_object *gobj;
608 struct radeon_device *rdev = dev->dev_private;
609 struct radeon_fpriv *fpriv = filp->driver_priv;
610 struct radeon_bo *rbo;
611 struct radeon_bo_va *bo_va;
612 u32 invalid_flags;
613 int r = 0;
614
615 if (!rdev->vm_manager.enabled) {
616 args->operation = RADEON_VA_RESULT_ERROR;
617 return -ENOTTY;
618 }
619
620 /* !! DONT REMOVE !!
621 * We don't support vm_id yet, to be sure we don't have have broken
622 * userspace, reject anyone trying to use non 0 value thus moving
623 * forward we can use those fields without breaking existant userspace
624 */
625 if (args->vm_id) {
626 args->operation = RADEON_VA_RESULT_ERROR;
627 return -EINVAL;
628 }
629
630 if (args->offset < RADEON_VA_RESERVED_SIZE) {
631 dev_err(&dev->pdev->dev,
632 "offset 0x%lX is in reserved area 0x%X\n",
633 (unsigned long)args->offset,
634 RADEON_VA_RESERVED_SIZE);
635 args->operation = RADEON_VA_RESULT_ERROR;
636 return -EINVAL;
637 }
638
639 /* don't remove, we need to enforce userspace to set the snooped flag
640 * otherwise we will endup with broken userspace and we won't be able
641 * to enable this feature without adding new interface
642 */
643 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
644 if ((args->flags & invalid_flags)) {
645 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
646 args->flags, invalid_flags);
647 args->operation = RADEON_VA_RESULT_ERROR;
648 return -EINVAL;
649 }
650
651 switch (args->operation) {
652 case RADEON_VA_MAP:
653 case RADEON_VA_UNMAP:
654 break;
655 default:
656 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
657 args->operation);
658 args->operation = RADEON_VA_RESULT_ERROR;
659 return -EINVAL;
660 }
661
662 gobj = drm_gem_object_lookup(filp, args->handle);
663 if (gobj == NULL) {
664 args->operation = RADEON_VA_RESULT_ERROR;
665 return -ENOENT;
666 }
667 rbo = gem_to_radeon_bo(gobj);
668 r = radeon_bo_reserve(rbo, false);
669 if (r) {
670 args->operation = RADEON_VA_RESULT_ERROR;
671 drm_gem_object_put(gobj);
672 return r;
673 }
674 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
675 if (!bo_va) {
676 args->operation = RADEON_VA_RESULT_ERROR;
677 radeon_bo_unreserve(rbo);
678 drm_gem_object_put(gobj);
679 return -ENOENT;
680 }
681
682 switch (args->operation) {
683 case RADEON_VA_MAP:
684 if (bo_va->it.start) {
685 args->operation = RADEON_VA_RESULT_VA_EXIST;
686 args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
687 radeon_bo_unreserve(rbo);
688 goto out;
689 }
690 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
691 break;
692 case RADEON_VA_UNMAP:
693 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
694 break;
695 default:
696 break;
697 }
698 if (!r)
699 radeon_gem_va_update_vm(rdev, bo_va);
700 args->operation = RADEON_VA_RESULT_OK;
701 if (r) {
702 args->operation = RADEON_VA_RESULT_ERROR;
703 }
704out:
705 drm_gem_object_put(gobj);
706 return r;
707}
708
709int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
710 struct drm_file *filp)
711{
712 struct drm_radeon_gem_op *args = data;
713 struct drm_gem_object *gobj;
714 struct radeon_bo *robj;
715 int r;
716
717 gobj = drm_gem_object_lookup(filp, args->handle);
718 if (gobj == NULL) {
719 return -ENOENT;
720 }
721 robj = gem_to_radeon_bo(gobj);
722
723 r = -EPERM;
724 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm))
725 goto out;
726
727 r = radeon_bo_reserve(robj, false);
728 if (unlikely(r))
729 goto out;
730
731 switch (args->op) {
732 case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
733 args->value = robj->initial_domain;
734 break;
735 case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
736 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
737 RADEON_GEM_DOMAIN_GTT |
738 RADEON_GEM_DOMAIN_CPU);
739 break;
740 default:
741 r = -EINVAL;
742 }
743
744 radeon_bo_unreserve(robj);
745out:
746 drm_gem_object_put(gobj);
747 return r;
748}
749
750int radeon_mode_dumb_create(struct drm_file *file_priv,
751 struct drm_device *dev,
752 struct drm_mode_create_dumb *args)
753{
754 struct radeon_device *rdev = dev->dev_private;
755 struct drm_gem_object *gobj;
756 uint32_t handle;
757 int r;
758
759 args->pitch = radeon_align_pitch(rdev, args->width,
760 DIV_ROUND_UP(args->bpp, 8), 0);
761 args->size = args->pitch * args->height;
762 args->size = ALIGN(args->size, PAGE_SIZE);
763
764 r = radeon_gem_object_create(rdev, args->size, 0,
765 RADEON_GEM_DOMAIN_VRAM, 0,
766 false, &gobj);
767 if (r)
768 return -ENOMEM;
769
770 r = drm_gem_handle_create(file_priv, gobj, &handle);
771 /* drop reference from allocate - handle holds it now */
772 drm_gem_object_put(gobj);
773 if (r) {
774 return r;
775 }
776 args->handle = handle;
777 return 0;
778}
779
780#if defined(CONFIG_DEBUG_FS)
781static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
782{
783 struct drm_info_node *node = (struct drm_info_node *)m->private;
784 struct drm_device *dev = node->minor->dev;
785 struct radeon_device *rdev = dev->dev_private;
786 struct radeon_bo *rbo;
787 unsigned i = 0;
788
789 mutex_lock(&rdev->gem.mutex);
790 list_for_each_entry(rbo, &rdev->gem.objects, list) {
791 unsigned domain;
792 const char *placement;
793
794 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
795 switch (domain) {
796 case RADEON_GEM_DOMAIN_VRAM:
797 placement = "VRAM";
798 break;
799 case RADEON_GEM_DOMAIN_GTT:
800 placement = " GTT";
801 break;
802 case RADEON_GEM_DOMAIN_CPU:
803 default:
804 placement = " CPU";
805 break;
806 }
807 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
808 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
809 placement, (unsigned long)rbo->pid);
810 i++;
811 }
812 mutex_unlock(&rdev->gem.mutex);
813 return 0;
814}
815
816static struct drm_info_list radeon_debugfs_gem_list[] = {
817 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
818};
819#endif
820
821int radeon_gem_debugfs_init(struct radeon_device *rdev)
822{
823#if defined(CONFIG_DEBUG_FS)
824 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);
825#endif
826 return 0;
827}