2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 * Authors: Dave Airlie
29 #include <drm/radeon_drm.h>
32 void radeon_gem_object_free(struct drm_gem_object *gobj)
34 struct radeon_bo *robj = gem_to_radeon_bo(gobj);
37 if (robj->gem_base.import_attach)
38 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
39 radeon_bo_unref(&robj);
43 int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size,
44 int alignment, int initial_domain,
45 u32 flags, bool kernel,
46 struct drm_gem_object **obj)
48 struct radeon_bo *robj;
49 unsigned long max_size;
53 /* At least align on page size */
54 if (alignment < PAGE_SIZE) {
55 alignment = PAGE_SIZE;
58 /* Maximum bo size is the unpinned gtt size since we use the gtt to
59 * handle vram to system pool migrations.
61 max_size = rdev->mc.gtt_size - rdev->gart_pin_size;
62 if (size > max_size) {
63 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
64 size >> 20, max_size >> 20);
69 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain,
70 flags, NULL, NULL, &robj);
72 if (r != -ERESTARTSYS) {
73 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
74 initial_domain |= RADEON_GEM_DOMAIN_GTT;
77 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
78 size, initial_domain, alignment, r);
82 *obj = &robj->gem_base;
83 robj->pid = task_pid_nr(current);
85 mutex_lock(&rdev->gem.mutex);
86 list_add_tail(&robj->list, &rdev->gem.objects);
87 mutex_unlock(&rdev->gem.mutex);
92 static int radeon_gem_set_domain(struct drm_gem_object *gobj,
93 uint32_t rdomain, uint32_t wdomain)
95 struct radeon_bo *robj;
99 /* FIXME: reeimplement */
100 robj = gem_to_radeon_bo(gobj);
101 /* work out where to validate the buffer to */
108 printk(KERN_WARNING "Set domain without domain !\n");
111 if (domain == RADEON_GEM_DOMAIN_CPU) {
112 /* Asking for cpu access wait for object idle */
113 r = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, 30 * HZ);
117 if (r < 0 && r != -EINTR) {
118 printk(KERN_ERR "Failed to wait for object: %li\n", r);
125 int radeon_gem_init(struct radeon_device *rdev)
127 INIT_LIST_HEAD(&rdev->gem.objects);
131 void radeon_gem_fini(struct radeon_device *rdev)
133 radeon_bo_force_delete(rdev);
137 * Call from drm_gem_handle_create which appear in both new and open ioctl
140 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
142 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
143 struct radeon_device *rdev = rbo->rdev;
144 struct radeon_fpriv *fpriv = file_priv->driver_priv;
145 struct radeon_vm *vm = &fpriv->vm;
146 struct radeon_bo_va *bo_va;
149 if (rdev->family < CHIP_CAYMAN) {
153 r = radeon_bo_reserve(rbo, false);
158 bo_va = radeon_vm_bo_find(vm, rbo);
160 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
164 radeon_bo_unreserve(rbo);
169 void radeon_gem_object_close(struct drm_gem_object *obj,
170 struct drm_file *file_priv)
172 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
173 struct radeon_device *rdev = rbo->rdev;
174 struct radeon_fpriv *fpriv = file_priv->driver_priv;
175 struct radeon_vm *vm = &fpriv->vm;
176 struct radeon_bo_va *bo_va;
179 if (rdev->family < CHIP_CAYMAN) {
183 r = radeon_bo_reserve(rbo, true);
185 dev_err(rdev->dev, "leaking bo va because "
186 "we fail to reserve bo (%d)\n", r);
189 bo_va = radeon_vm_bo_find(vm, rbo);
191 if (--bo_va->ref_count == 0) {
192 radeon_vm_bo_rmv(rdev, bo_va);
195 radeon_bo_unreserve(rbo);
198 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
201 r = radeon_gpu_reset(rdev);
211 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
212 struct drm_file *filp)
214 struct radeon_device *rdev = dev->dev_private;
215 struct drm_radeon_gem_info *args = data;
216 struct ttm_mem_type_manager *man;
218 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
220 args->vram_size = rdev->mc.real_vram_size;
221 args->vram_visible = (u64)man->size << PAGE_SHIFT;
222 args->vram_visible -= rdev->vram_pin_size;
223 args->gart_size = rdev->mc.gtt_size;
224 args->gart_size -= rdev->gart_pin_size;
229 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
230 struct drm_file *filp)
232 /* TODO: implement */
233 DRM_ERROR("unimplemented %s\n", __func__);
237 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
238 struct drm_file *filp)
240 /* TODO: implement */
241 DRM_ERROR("unimplemented %s\n", __func__);
245 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
246 struct drm_file *filp)
248 struct radeon_device *rdev = dev->dev_private;
249 struct drm_radeon_gem_create *args = data;
250 struct drm_gem_object *gobj;
254 down_read(&rdev->exclusive_lock);
255 /* create a gem object to contain this object in */
256 args->size = roundup(args->size, PAGE_SIZE);
257 r = radeon_gem_object_create(rdev, args->size, args->alignment,
258 args->initial_domain, args->flags,
261 up_read(&rdev->exclusive_lock);
262 r = radeon_gem_handle_lockup(rdev, r);
265 r = drm_gem_handle_create(filp, gobj, &handle);
266 /* drop reference from allocate - handle holds it now */
267 drm_gem_object_unreference_unlocked(gobj);
269 up_read(&rdev->exclusive_lock);
270 r = radeon_gem_handle_lockup(rdev, r);
273 args->handle = handle;
274 up_read(&rdev->exclusive_lock);
278 int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
279 struct drm_file *filp)
281 struct radeon_device *rdev = dev->dev_private;
282 struct drm_radeon_gem_userptr *args = data;
283 struct drm_gem_object *gobj;
284 struct radeon_bo *bo;
288 if (offset_in_page(args->addr | args->size))
291 /* reject unknown flag values */
292 if (args->flags & ~(RADEON_GEM_USERPTR_READONLY |
293 RADEON_GEM_USERPTR_ANONONLY | RADEON_GEM_USERPTR_VALIDATE |
294 RADEON_GEM_USERPTR_REGISTER))
297 if (args->flags & RADEON_GEM_USERPTR_READONLY) {
298 /* readonly pages not tested on older hardware */
299 if (rdev->family < CHIP_R600)
302 } else if (!(args->flags & RADEON_GEM_USERPTR_ANONONLY) ||
303 !(args->flags & RADEON_GEM_USERPTR_REGISTER)) {
305 /* if we want to write to it we must require anonymous
306 memory and install a MMU notifier */
310 down_read(&rdev->exclusive_lock);
312 /* create a gem object to contain this object in */
313 r = radeon_gem_object_create(rdev, args->size, 0,
314 RADEON_GEM_DOMAIN_CPU, 0,
319 bo = gem_to_radeon_bo(gobj);
320 r = radeon_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
324 if (args->flags & RADEON_GEM_USERPTR_REGISTER) {
325 r = radeon_mn_register(bo, args->addr);
330 if (args->flags & RADEON_GEM_USERPTR_VALIDATE) {
331 down_read(¤t->mm->mmap_sem);
332 r = radeon_bo_reserve(bo, true);
334 up_read(¤t->mm->mmap_sem);
338 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT);
339 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
340 radeon_bo_unreserve(bo);
341 up_read(¤t->mm->mmap_sem);
346 r = drm_gem_handle_create(filp, gobj, &handle);
347 /* drop reference from allocate - handle holds it now */
348 drm_gem_object_unreference_unlocked(gobj);
352 args->handle = handle;
353 up_read(&rdev->exclusive_lock);
357 drm_gem_object_unreference_unlocked(gobj);
360 up_read(&rdev->exclusive_lock);
361 r = radeon_gem_handle_lockup(rdev, r);
366 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
367 struct drm_file *filp)
369 /* transition the BO to a domain -
370 * just validate the BO into a certain domain */
371 struct radeon_device *rdev = dev->dev_private;
372 struct drm_radeon_gem_set_domain *args = data;
373 struct drm_gem_object *gobj;
374 struct radeon_bo *robj;
377 /* for now if someone requests domain CPU -
378 * just make sure the buffer is finished with */
379 down_read(&rdev->exclusive_lock);
381 /* just do a BO wait for now */
382 gobj = drm_gem_object_lookup(dev, filp, args->handle);
384 up_read(&rdev->exclusive_lock);
387 robj = gem_to_radeon_bo(gobj);
389 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
391 drm_gem_object_unreference_unlocked(gobj);
392 up_read(&rdev->exclusive_lock);
393 r = radeon_gem_handle_lockup(robj->rdev, r);
397 static int radeon_mode_mmap(struct drm_file *filp,
398 struct drm_device *dev,
399 uint32_t handle, bool dumb,
402 struct drm_gem_object *gobj;
403 struct radeon_bo *robj;
405 gobj = drm_gem_object_lookup(dev, filp, handle);
411 * We don't allow dumb mmaps on objects created using another
414 WARN_ONCE(dumb && !(gobj->dumb || gobj->import_attach),
415 "Illegal dumb map of GPU buffer.\n");
417 robj = gem_to_radeon_bo(gobj);
418 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) {
419 drm_gem_object_unreference_unlocked(gobj);
422 *offset_p = radeon_bo_mmap_offset(robj);
423 drm_gem_object_unreference_unlocked(gobj);
427 int radeon_mode_dumb_mmap(struct drm_file *filp,
428 struct drm_device *dev,
429 uint32_t handle, uint64_t *offset_p)
431 return radeon_mode_mmap(filp, dev, handle, true, offset_p);
434 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
435 struct drm_file *filp)
437 struct drm_radeon_gem_mmap *args = data;
439 return radeon_mode_mmap(filp, dev, args->handle, false,
443 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
444 struct drm_file *filp)
446 struct radeon_device *rdev = dev->dev_private;
447 struct drm_radeon_gem_busy *args = data;
448 struct drm_gem_object *gobj;
449 struct radeon_bo *robj;
451 uint32_t cur_placement = 0;
453 gobj = drm_gem_object_lookup(dev, filp, args->handle);
457 robj = gem_to_radeon_bo(gobj);
458 r = radeon_bo_wait(robj, &cur_placement, true);
459 args->domain = radeon_mem_type_to_domain(cur_placement);
460 drm_gem_object_unreference_unlocked(gobj);
461 r = radeon_gem_handle_lockup(rdev, r);
465 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
466 struct drm_file *filp)
468 struct radeon_device *rdev = dev->dev_private;
469 struct drm_radeon_gem_wait_idle *args = data;
470 struct drm_gem_object *gobj;
471 struct radeon_bo *robj;
473 uint32_t cur_placement = 0;
476 gobj = drm_gem_object_lookup(dev, filp, args->handle);
480 robj = gem_to_radeon_bo(gobj);
482 ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, 30 * HZ);
488 /* Flush HDP cache via MMIO if necessary */
489 if (rdev->asic->mmio_hdp_flush &&
490 radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
491 robj->rdev->asic->mmio_hdp_flush(rdev);
492 drm_gem_object_unreference_unlocked(gobj);
493 r = radeon_gem_handle_lockup(rdev, r);
497 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
498 struct drm_file *filp)
500 struct drm_radeon_gem_set_tiling *args = data;
501 struct drm_gem_object *gobj;
502 struct radeon_bo *robj;
505 DRM_DEBUG("%d \n", args->handle);
506 gobj = drm_gem_object_lookup(dev, filp, args->handle);
509 robj = gem_to_radeon_bo(gobj);
510 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
511 drm_gem_object_unreference_unlocked(gobj);
515 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
516 struct drm_file *filp)
518 struct drm_radeon_gem_get_tiling *args = data;
519 struct drm_gem_object *gobj;
520 struct radeon_bo *rbo;
524 gobj = drm_gem_object_lookup(dev, filp, args->handle);
527 rbo = gem_to_radeon_bo(gobj);
528 r = radeon_bo_reserve(rbo, false);
529 if (unlikely(r != 0))
531 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
532 radeon_bo_unreserve(rbo);
534 drm_gem_object_unreference_unlocked(gobj);
539 * radeon_gem_va_update_vm -update the bo_va in its VM
541 * @rdev: radeon_device pointer
542 * @bo_va: bo_va to update
544 * Update the bo_va directly after setting it's address. Errors are not
545 * vital here, so they are not reported back to userspace.
547 static void radeon_gem_va_update_vm(struct radeon_device *rdev,
548 struct radeon_bo_va *bo_va)
550 struct ttm_validate_buffer tv, *entry;
551 struct radeon_bo_list *vm_bos;
552 struct ww_acquire_ctx ticket;
553 struct list_head list;
557 INIT_LIST_HEAD(&list);
559 tv.bo = &bo_va->bo->tbo;
561 list_add(&tv.head, &list);
563 vm_bos = radeon_vm_get_bos(rdev, bo_va->vm, &list);
567 r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
571 list_for_each_entry(entry, &list, head) {
572 domain = radeon_mem_type_to_domain(entry->bo->mem.mem_type);
573 /* if anything is swapped out don't swap it in here,
574 just abort and wait for the next CS */
575 if (domain == RADEON_GEM_DOMAIN_CPU)
576 goto error_unreserve;
579 mutex_lock(&bo_va->vm->mutex);
580 r = radeon_vm_clear_freed(rdev, bo_va->vm);
585 r = radeon_vm_bo_update(rdev, bo_va, &bo_va->bo->tbo.mem);
588 mutex_unlock(&bo_va->vm->mutex);
591 ttm_eu_backoff_reservation(&ticket, &list);
594 drm_free_large(vm_bos);
597 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
600 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
601 struct drm_file *filp)
603 struct drm_radeon_gem_va *args = data;
604 struct drm_gem_object *gobj;
605 struct radeon_device *rdev = dev->dev_private;
606 struct radeon_fpriv *fpriv = filp->driver_priv;
607 struct radeon_bo *rbo;
608 struct radeon_bo_va *bo_va;
612 if (!rdev->vm_manager.enabled) {
613 args->operation = RADEON_VA_RESULT_ERROR;
618 * We don't support vm_id yet, to be sure we don't have have broken
619 * userspace, reject anyone trying to use non 0 value thus moving
620 * forward we can use those fields without breaking existant userspace
623 args->operation = RADEON_VA_RESULT_ERROR;
627 if (args->offset < RADEON_VA_RESERVED_SIZE) {
628 dev_err(&dev->pdev->dev,
629 "offset 0x%lX is in reserved area 0x%X\n",
630 (unsigned long)args->offset,
631 RADEON_VA_RESERVED_SIZE);
632 args->operation = RADEON_VA_RESULT_ERROR;
636 /* don't remove, we need to enforce userspace to set the snooped flag
637 * otherwise we will endup with broken userspace and we won't be able
638 * to enable this feature without adding new interface
640 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
641 if ((args->flags & invalid_flags)) {
642 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
643 args->flags, invalid_flags);
644 args->operation = RADEON_VA_RESULT_ERROR;
648 switch (args->operation) {
650 case RADEON_VA_UNMAP:
653 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
655 args->operation = RADEON_VA_RESULT_ERROR;
659 gobj = drm_gem_object_lookup(dev, filp, args->handle);
661 args->operation = RADEON_VA_RESULT_ERROR;
664 rbo = gem_to_radeon_bo(gobj);
665 r = radeon_bo_reserve(rbo, false);
667 args->operation = RADEON_VA_RESULT_ERROR;
668 drm_gem_object_unreference_unlocked(gobj);
671 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
673 args->operation = RADEON_VA_RESULT_ERROR;
674 drm_gem_object_unreference_unlocked(gobj);
678 switch (args->operation) {
680 if (bo_va->it.start) {
681 args->operation = RADEON_VA_RESULT_VA_EXIST;
682 args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
683 radeon_bo_unreserve(rbo);
686 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
688 case RADEON_VA_UNMAP:
689 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
695 radeon_gem_va_update_vm(rdev, bo_va);
696 args->operation = RADEON_VA_RESULT_OK;
698 args->operation = RADEON_VA_RESULT_ERROR;
701 drm_gem_object_unreference_unlocked(gobj);
705 int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
706 struct drm_file *filp)
708 struct drm_radeon_gem_op *args = data;
709 struct drm_gem_object *gobj;
710 struct radeon_bo *robj;
713 gobj = drm_gem_object_lookup(dev, filp, args->handle);
717 robj = gem_to_radeon_bo(gobj);
720 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm))
723 r = radeon_bo_reserve(robj, false);
728 case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
729 args->value = robj->initial_domain;
731 case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
732 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
733 RADEON_GEM_DOMAIN_GTT |
734 RADEON_GEM_DOMAIN_CPU);
740 radeon_bo_unreserve(robj);
742 drm_gem_object_unreference_unlocked(gobj);
746 int radeon_mode_dumb_create(struct drm_file *file_priv,
747 struct drm_device *dev,
748 struct drm_mode_create_dumb *args)
750 struct radeon_device *rdev = dev->dev_private;
751 struct drm_gem_object *gobj;
755 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
756 args->size = args->pitch * args->height;
757 args->size = ALIGN(args->size, PAGE_SIZE);
759 r = radeon_gem_object_create(rdev, args->size, 0,
760 RADEON_GEM_DOMAIN_VRAM, 0,
765 r = drm_gem_handle_create(file_priv, gobj, &handle);
767 /* drop reference from allocate - handle holds it now */
768 drm_gem_object_unreference_unlocked(gobj);
772 args->handle = handle;
776 #if defined(CONFIG_DEBUG_FS)
777 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
779 struct drm_info_node *node = (struct drm_info_node *)m->private;
780 struct drm_device *dev = node->minor->dev;
781 struct radeon_device *rdev = dev->dev_private;
782 struct radeon_bo *rbo;
785 mutex_lock(&rdev->gem.mutex);
786 list_for_each_entry(rbo, &rdev->gem.objects, list) {
788 const char *placement;
790 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
792 case RADEON_GEM_DOMAIN_VRAM:
795 case RADEON_GEM_DOMAIN_GTT:
798 case RADEON_GEM_DOMAIN_CPU:
803 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
804 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
805 placement, (unsigned long)rbo->pid);
808 mutex_unlock(&rdev->gem.mutex);
812 static struct drm_info_list radeon_debugfs_gem_list[] = {
813 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
817 int radeon_gem_debugfs_init(struct radeon_device *rdev)
819 #if defined(CONFIG_DEBUG_FS)
820 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);