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) ||
150 (!rdev->accel_working)) {
154 r = radeon_bo_reserve(rbo, false);
159 bo_va = radeon_vm_bo_find(vm, rbo);
161 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
165 radeon_bo_unreserve(rbo);
170 void radeon_gem_object_close(struct drm_gem_object *obj,
171 struct drm_file *file_priv)
173 struct radeon_bo *rbo = gem_to_radeon_bo(obj);
174 struct radeon_device *rdev = rbo->rdev;
175 struct radeon_fpriv *fpriv = file_priv->driver_priv;
176 struct radeon_vm *vm = &fpriv->vm;
177 struct radeon_bo_va *bo_va;
180 if ((rdev->family < CHIP_CAYMAN) ||
181 (!rdev->accel_working)) {
185 r = radeon_bo_reserve(rbo, true);
187 dev_err(rdev->dev, "leaking bo va because "
188 "we fail to reserve bo (%d)\n", r);
191 bo_va = radeon_vm_bo_find(vm, rbo);
193 if (--bo_va->ref_count == 0) {
194 radeon_vm_bo_rmv(rdev, bo_va);
197 radeon_bo_unreserve(rbo);
200 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
203 r = radeon_gpu_reset(rdev);
213 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
214 struct drm_file *filp)
216 struct radeon_device *rdev = dev->dev_private;
217 struct drm_radeon_gem_info *args = data;
218 struct ttm_mem_type_manager *man;
220 man = &rdev->mman.bdev.man[TTM_PL_VRAM];
222 args->vram_size = rdev->mc.real_vram_size;
223 args->vram_visible = (u64)man->size << PAGE_SHIFT;
224 args->vram_visible -= rdev->vram_pin_size;
225 args->gart_size = rdev->mc.gtt_size;
226 args->gart_size -= rdev->gart_pin_size;
231 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
232 struct drm_file *filp)
234 /* TODO: implement */
235 DRM_ERROR("unimplemented %s\n", __func__);
239 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
240 struct drm_file *filp)
242 /* TODO: implement */
243 DRM_ERROR("unimplemented %s\n", __func__);
247 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
248 struct drm_file *filp)
250 struct radeon_device *rdev = dev->dev_private;
251 struct drm_radeon_gem_create *args = data;
252 struct drm_gem_object *gobj;
256 down_read(&rdev->exclusive_lock);
257 /* create a gem object to contain this object in */
258 args->size = roundup(args->size, PAGE_SIZE);
259 r = radeon_gem_object_create(rdev, args->size, args->alignment,
260 args->initial_domain, args->flags,
263 up_read(&rdev->exclusive_lock);
264 r = radeon_gem_handle_lockup(rdev, r);
267 r = drm_gem_handle_create(filp, gobj, &handle);
268 /* drop reference from allocate - handle holds it now */
269 drm_gem_object_unreference_unlocked(gobj);
271 up_read(&rdev->exclusive_lock);
272 r = radeon_gem_handle_lockup(rdev, r);
275 args->handle = handle;
276 up_read(&rdev->exclusive_lock);
280 int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
281 struct drm_file *filp)
283 struct radeon_device *rdev = dev->dev_private;
284 struct drm_radeon_gem_userptr *args = data;
285 struct drm_gem_object *gobj;
286 struct radeon_bo *bo;
290 if (offset_in_page(args->addr | args->size))
293 /* reject unknown flag values */
294 if (args->flags & ~(RADEON_GEM_USERPTR_READONLY |
295 RADEON_GEM_USERPTR_ANONONLY | RADEON_GEM_USERPTR_VALIDATE |
296 RADEON_GEM_USERPTR_REGISTER))
299 if (args->flags & RADEON_GEM_USERPTR_READONLY) {
300 /* readonly pages not tested on older hardware */
301 if (rdev->family < CHIP_R600)
304 } else if (!(args->flags & RADEON_GEM_USERPTR_ANONONLY) ||
305 !(args->flags & RADEON_GEM_USERPTR_REGISTER)) {
307 /* if we want to write to it we must require anonymous
308 memory and install a MMU notifier */
312 down_read(&rdev->exclusive_lock);
314 /* create a gem object to contain this object in */
315 r = radeon_gem_object_create(rdev, args->size, 0,
316 RADEON_GEM_DOMAIN_CPU, 0,
321 bo = gem_to_radeon_bo(gobj);
322 r = radeon_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
326 if (args->flags & RADEON_GEM_USERPTR_REGISTER) {
327 r = radeon_mn_register(bo, args->addr);
332 if (args->flags & RADEON_GEM_USERPTR_VALIDATE) {
333 down_read(¤t->mm->mmap_sem);
334 r = radeon_bo_reserve(bo, true);
336 up_read(¤t->mm->mmap_sem);
340 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT);
341 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
342 radeon_bo_unreserve(bo);
343 up_read(¤t->mm->mmap_sem);
348 r = drm_gem_handle_create(filp, gobj, &handle);
349 /* drop reference from allocate - handle holds it now */
350 drm_gem_object_unreference_unlocked(gobj);
354 args->handle = handle;
355 up_read(&rdev->exclusive_lock);
359 drm_gem_object_unreference_unlocked(gobj);
362 up_read(&rdev->exclusive_lock);
363 r = radeon_gem_handle_lockup(rdev, r);
368 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
369 struct drm_file *filp)
371 /* transition the BO to a domain -
372 * just validate the BO into a certain domain */
373 struct radeon_device *rdev = dev->dev_private;
374 struct drm_radeon_gem_set_domain *args = data;
375 struct drm_gem_object *gobj;
376 struct radeon_bo *robj;
379 /* for now if someone requests domain CPU -
380 * just make sure the buffer is finished with */
381 down_read(&rdev->exclusive_lock);
383 /* just do a BO wait for now */
384 gobj = drm_gem_object_lookup(dev, filp, args->handle);
386 up_read(&rdev->exclusive_lock);
389 robj = gem_to_radeon_bo(gobj);
391 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
393 drm_gem_object_unreference_unlocked(gobj);
394 up_read(&rdev->exclusive_lock);
395 r = radeon_gem_handle_lockup(robj->rdev, r);
399 int radeon_mode_dumb_mmap(struct drm_file *filp,
400 struct drm_device *dev,
401 uint32_t handle, uint64_t *offset_p)
403 struct drm_gem_object *gobj;
404 struct radeon_bo *robj;
406 gobj = drm_gem_object_lookup(dev, filp, handle);
410 robj = gem_to_radeon_bo(gobj);
411 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) {
412 drm_gem_object_unreference_unlocked(gobj);
415 *offset_p = radeon_bo_mmap_offset(robj);
416 drm_gem_object_unreference_unlocked(gobj);
420 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
421 struct drm_file *filp)
423 struct drm_radeon_gem_mmap *args = data;
425 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
428 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
429 struct drm_file *filp)
431 struct drm_radeon_gem_busy *args = data;
432 struct drm_gem_object *gobj;
433 struct radeon_bo *robj;
435 uint32_t cur_placement = 0;
437 gobj = drm_gem_object_lookup(dev, filp, args->handle);
441 robj = gem_to_radeon_bo(gobj);
443 r = reservation_object_test_signaled_rcu(robj->tbo.resv, true);
449 cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
450 args->domain = radeon_mem_type_to_domain(cur_placement);
451 drm_gem_object_unreference_unlocked(gobj);
455 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
456 struct drm_file *filp)
458 struct radeon_device *rdev = dev->dev_private;
459 struct drm_radeon_gem_wait_idle *args = data;
460 struct drm_gem_object *gobj;
461 struct radeon_bo *robj;
463 uint32_t cur_placement = 0;
466 gobj = drm_gem_object_lookup(dev, filp, args->handle);
470 robj = gem_to_radeon_bo(gobj);
472 ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, 30 * HZ);
478 /* Flush HDP cache via MMIO if necessary */
479 cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
480 if (rdev->asic->mmio_hdp_flush &&
481 radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
482 robj->rdev->asic->mmio_hdp_flush(rdev);
483 drm_gem_object_unreference_unlocked(gobj);
484 r = radeon_gem_handle_lockup(rdev, r);
488 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
489 struct drm_file *filp)
491 struct drm_radeon_gem_set_tiling *args = data;
492 struct drm_gem_object *gobj;
493 struct radeon_bo *robj;
496 DRM_DEBUG("%d \n", args->handle);
497 gobj = drm_gem_object_lookup(dev, filp, args->handle);
500 robj = gem_to_radeon_bo(gobj);
501 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
502 drm_gem_object_unreference_unlocked(gobj);
506 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
507 struct drm_file *filp)
509 struct drm_radeon_gem_get_tiling *args = data;
510 struct drm_gem_object *gobj;
511 struct radeon_bo *rbo;
515 gobj = drm_gem_object_lookup(dev, filp, args->handle);
518 rbo = gem_to_radeon_bo(gobj);
519 r = radeon_bo_reserve(rbo, false);
520 if (unlikely(r != 0))
522 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
523 radeon_bo_unreserve(rbo);
525 drm_gem_object_unreference_unlocked(gobj);
530 * radeon_gem_va_update_vm -update the bo_va in its VM
532 * @rdev: radeon_device pointer
533 * @bo_va: bo_va to update
535 * Update the bo_va directly after setting it's address. Errors are not
536 * vital here, so they are not reported back to userspace.
538 static void radeon_gem_va_update_vm(struct radeon_device *rdev,
539 struct radeon_bo_va *bo_va)
541 struct ttm_validate_buffer tv, *entry;
542 struct radeon_bo_list *vm_bos;
543 struct ww_acquire_ctx ticket;
544 struct list_head list;
548 INIT_LIST_HEAD(&list);
550 tv.bo = &bo_va->bo->tbo;
552 list_add(&tv.head, &list);
554 vm_bos = radeon_vm_get_bos(rdev, bo_va->vm, &list);
558 r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
562 list_for_each_entry(entry, &list, head) {
563 domain = radeon_mem_type_to_domain(entry->bo->mem.mem_type);
564 /* if anything is swapped out don't swap it in here,
565 just abort and wait for the next CS */
566 if (domain == RADEON_GEM_DOMAIN_CPU)
567 goto error_unreserve;
570 mutex_lock(&bo_va->vm->mutex);
571 r = radeon_vm_clear_freed(rdev, bo_va->vm);
576 r = radeon_vm_bo_update(rdev, bo_va, &bo_va->bo->tbo.mem);
579 mutex_unlock(&bo_va->vm->mutex);
582 ttm_eu_backoff_reservation(&ticket, &list);
585 drm_free_large(vm_bos);
587 if (r && r != -ERESTARTSYS)
588 DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
591 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
592 struct drm_file *filp)
594 struct drm_radeon_gem_va *args = data;
595 struct drm_gem_object *gobj;
596 struct radeon_device *rdev = dev->dev_private;
597 struct radeon_fpriv *fpriv = filp->driver_priv;
598 struct radeon_bo *rbo;
599 struct radeon_bo_va *bo_va;
603 if (!rdev->vm_manager.enabled) {
604 args->operation = RADEON_VA_RESULT_ERROR;
609 * We don't support vm_id yet, to be sure we don't have have broken
610 * userspace, reject anyone trying to use non 0 value thus moving
611 * forward we can use those fields without breaking existant userspace
614 args->operation = RADEON_VA_RESULT_ERROR;
618 if (args->offset < RADEON_VA_RESERVED_SIZE) {
619 dev_err(&dev->pdev->dev,
620 "offset 0x%lX is in reserved area 0x%X\n",
621 (unsigned long)args->offset,
622 RADEON_VA_RESERVED_SIZE);
623 args->operation = RADEON_VA_RESULT_ERROR;
627 /* don't remove, we need to enforce userspace to set the snooped flag
628 * otherwise we will endup with broken userspace and we won't be able
629 * to enable this feature without adding new interface
631 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
632 if ((args->flags & invalid_flags)) {
633 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
634 args->flags, invalid_flags);
635 args->operation = RADEON_VA_RESULT_ERROR;
639 switch (args->operation) {
641 case RADEON_VA_UNMAP:
644 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
646 args->operation = RADEON_VA_RESULT_ERROR;
650 gobj = drm_gem_object_lookup(dev, filp, args->handle);
652 args->operation = RADEON_VA_RESULT_ERROR;
655 rbo = gem_to_radeon_bo(gobj);
656 r = radeon_bo_reserve(rbo, false);
658 args->operation = RADEON_VA_RESULT_ERROR;
659 drm_gem_object_unreference_unlocked(gobj);
662 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
664 args->operation = RADEON_VA_RESULT_ERROR;
665 drm_gem_object_unreference_unlocked(gobj);
669 switch (args->operation) {
671 if (bo_va->it.start) {
672 args->operation = RADEON_VA_RESULT_VA_EXIST;
673 args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
674 radeon_bo_unreserve(rbo);
677 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
679 case RADEON_VA_UNMAP:
680 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
686 radeon_gem_va_update_vm(rdev, bo_va);
687 args->operation = RADEON_VA_RESULT_OK;
689 args->operation = RADEON_VA_RESULT_ERROR;
692 drm_gem_object_unreference_unlocked(gobj);
696 int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
697 struct drm_file *filp)
699 struct drm_radeon_gem_op *args = data;
700 struct drm_gem_object *gobj;
701 struct radeon_bo *robj;
704 gobj = drm_gem_object_lookup(dev, filp, args->handle);
708 robj = gem_to_radeon_bo(gobj);
711 if (radeon_ttm_tt_has_userptr(robj->tbo.ttm))
714 r = radeon_bo_reserve(robj, false);
719 case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
720 args->value = robj->initial_domain;
722 case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
723 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
724 RADEON_GEM_DOMAIN_GTT |
725 RADEON_GEM_DOMAIN_CPU);
731 radeon_bo_unreserve(robj);
733 drm_gem_object_unreference_unlocked(gobj);
737 int radeon_mode_dumb_create(struct drm_file *file_priv,
738 struct drm_device *dev,
739 struct drm_mode_create_dumb *args)
741 struct radeon_device *rdev = dev->dev_private;
742 struct drm_gem_object *gobj;
746 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
747 args->size = args->pitch * args->height;
748 args->size = ALIGN(args->size, PAGE_SIZE);
750 r = radeon_gem_object_create(rdev, args->size, 0,
751 RADEON_GEM_DOMAIN_VRAM, 0,
756 r = drm_gem_handle_create(file_priv, gobj, &handle);
757 /* drop reference from allocate - handle holds it now */
758 drm_gem_object_unreference_unlocked(gobj);
762 args->handle = handle;
766 #if defined(CONFIG_DEBUG_FS)
767 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
769 struct drm_info_node *node = (struct drm_info_node *)m->private;
770 struct drm_device *dev = node->minor->dev;
771 struct radeon_device *rdev = dev->dev_private;
772 struct radeon_bo *rbo;
775 mutex_lock(&rdev->gem.mutex);
776 list_for_each_entry(rbo, &rdev->gem.objects, list) {
778 const char *placement;
780 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
782 case RADEON_GEM_DOMAIN_VRAM:
785 case RADEON_GEM_DOMAIN_GTT:
788 case RADEON_GEM_DOMAIN_CPU:
793 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
794 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
795 placement, (unsigned long)rbo->pid);
798 mutex_unlock(&rdev->gem.mutex);
802 static struct drm_info_list radeon_debugfs_gem_list[] = {
803 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
807 int radeon_gem_debugfs_init(struct radeon_device *rdev)
809 #if defined(CONFIG_DEBUG_FS)
810 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);