2 * Copyright 2009 Jerome Glisse.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 * The above copyright notice and this permission notice (including the
22 * next paragraph) shall be included in all copies or substantial portions
28 * Jerome Glisse <glisse@freedesktop.org>
29 * Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
32 #include <linux/list.h>
33 #include <linux/slab.h>
35 #include <drm/radeon_drm.h>
37 #include "radeon_trace.h"
40 int radeon_ttm_init(struct radeon_device *rdev);
41 void radeon_ttm_fini(struct radeon_device *rdev);
42 static void radeon_bo_clear_surface_reg(struct radeon_bo *bo);
45 * To exclude mutual BO access we rely on bo_reserve exclusion, as all
46 * function are calling it.
49 static void radeon_update_memory_usage(struct radeon_bo *bo,
50 unsigned mem_type, int sign)
52 struct radeon_device *rdev = bo->rdev;
53 u64 size = (u64)bo->tbo.num_pages << PAGE_SHIFT;
58 atomic64_add(size, &rdev->gtt_usage);
60 atomic64_sub(size, &rdev->gtt_usage);
64 atomic64_add(size, &rdev->vram_usage);
66 atomic64_sub(size, &rdev->vram_usage);
71 static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
75 bo = container_of(tbo, struct radeon_bo, tbo);
77 radeon_update_memory_usage(bo, bo->tbo.mem.mem_type, -1);
78 radeon_mn_unregister(bo);
80 mutex_lock(&bo->rdev->gem.mutex);
81 list_del_init(&bo->list);
82 mutex_unlock(&bo->rdev->gem.mutex);
83 radeon_bo_clear_surface_reg(bo);
84 WARN_ON(!list_empty(&bo->va));
85 drm_gem_object_release(&bo->gem_base);
89 bool radeon_ttm_bo_is_radeon_bo(struct ttm_buffer_object *bo)
91 if (bo->destroy == &radeon_ttm_bo_destroy)
96 void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
100 rbo->placement.placement = rbo->placements;
101 rbo->placement.busy_placement = rbo->placements;
102 if (domain & RADEON_GEM_DOMAIN_VRAM) {
103 /* Try placing BOs which don't need CPU access outside of the
104 * CPU accessible part of VRAM
106 if ((rbo->flags & RADEON_GEM_NO_CPU_ACCESS) &&
107 rbo->rdev->mc.visible_vram_size < rbo->rdev->mc.real_vram_size) {
108 rbo->placements[c].fpfn =
109 rbo->rdev->mc.visible_vram_size >> PAGE_SHIFT;
110 rbo->placements[c++].flags = TTM_PL_FLAG_WC |
111 TTM_PL_FLAG_UNCACHED |
115 rbo->placements[c].fpfn = 0;
116 rbo->placements[c++].flags = TTM_PL_FLAG_WC |
117 TTM_PL_FLAG_UNCACHED |
121 if (domain & RADEON_GEM_DOMAIN_GTT) {
122 if (rbo->flags & RADEON_GEM_GTT_UC) {
123 rbo->placements[c].fpfn = 0;
124 rbo->placements[c++].flags = TTM_PL_FLAG_UNCACHED |
127 } else if ((rbo->flags & RADEON_GEM_GTT_WC) ||
128 (rbo->rdev->flags & RADEON_IS_AGP)) {
129 rbo->placements[c].fpfn = 0;
130 rbo->placements[c++].flags = TTM_PL_FLAG_WC |
131 TTM_PL_FLAG_UNCACHED |
134 rbo->placements[c].fpfn = 0;
135 rbo->placements[c++].flags = TTM_PL_FLAG_CACHED |
140 if (domain & RADEON_GEM_DOMAIN_CPU) {
141 if (rbo->flags & RADEON_GEM_GTT_UC) {
142 rbo->placements[c].fpfn = 0;
143 rbo->placements[c++].flags = TTM_PL_FLAG_UNCACHED |
146 } else if ((rbo->flags & RADEON_GEM_GTT_WC) ||
147 rbo->rdev->flags & RADEON_IS_AGP) {
148 rbo->placements[c].fpfn = 0;
149 rbo->placements[c++].flags = TTM_PL_FLAG_WC |
150 TTM_PL_FLAG_UNCACHED |
153 rbo->placements[c].fpfn = 0;
154 rbo->placements[c++].flags = TTM_PL_FLAG_CACHED |
159 rbo->placements[c].fpfn = 0;
160 rbo->placements[c++].flags = TTM_PL_MASK_CACHING |
164 rbo->placement.num_placement = c;
165 rbo->placement.num_busy_placement = c;
167 for (i = 0; i < c; ++i) {
168 if ((rbo->flags & RADEON_GEM_CPU_ACCESS) &&
169 (rbo->placements[i].flags & TTM_PL_FLAG_VRAM) &&
170 !rbo->placements[i].fpfn)
171 rbo->placements[i].lpfn =
172 rbo->rdev->mc.visible_vram_size >> PAGE_SHIFT;
174 rbo->placements[i].lpfn = 0;
178 * Use two-ended allocation depending on the buffer size to
179 * improve fragmentation quality.
180 * 512kb was measured as the most optimal number.
182 if (rbo->tbo.mem.size > 512 * 1024) {
183 for (i = 0; i < c; i++) {
184 rbo->placements[i].flags |= TTM_PL_FLAG_TOPDOWN;
189 int radeon_bo_create(struct radeon_device *rdev,
190 unsigned long size, int byte_align, bool kernel,
191 u32 domain, u32 flags, struct sg_table *sg,
192 struct reservation_object *resv,
193 struct radeon_bo **bo_ptr)
195 struct radeon_bo *bo;
196 enum ttm_bo_type type;
197 unsigned long page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT;
201 size = ALIGN(size, PAGE_SIZE);
204 type = ttm_bo_type_kernel;
206 type = ttm_bo_type_sg;
208 type = ttm_bo_type_device;
212 acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size,
213 sizeof(struct radeon_bo));
215 bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
218 r = drm_gem_object_init(rdev->ddev, &bo->gem_base, size);
224 bo->surface_reg = -1;
225 INIT_LIST_HEAD(&bo->list);
226 INIT_LIST_HEAD(&bo->va);
227 bo->initial_domain = domain & (RADEON_GEM_DOMAIN_VRAM |
228 RADEON_GEM_DOMAIN_GTT |
229 RADEON_GEM_DOMAIN_CPU);
232 /* PCI GART is always snooped */
233 if (!(rdev->flags & RADEON_IS_PCIE))
234 bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC);
237 /* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit
238 * See https://bugs.freedesktop.org/show_bug.cgi?id=84627
240 bo->flags &= ~RADEON_GEM_GTT_WC;
243 radeon_ttm_placement_from_domain(bo, domain);
244 /* Kernel allocation are uninterruptible */
245 down_read(&rdev->pm.mclk_lock);
246 r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type,
247 &bo->placement, page_align, !kernel, NULL,
248 acc_size, sg, resv, &radeon_ttm_bo_destroy);
249 up_read(&rdev->pm.mclk_lock);
250 if (unlikely(r != 0)) {
255 trace_radeon_bo_create(bo);
260 int radeon_bo_kmap(struct radeon_bo *bo, void **ptr)
271 r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
275 bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
279 radeon_bo_check_tiling(bo, 0, 0);
283 void radeon_bo_kunmap(struct radeon_bo *bo)
285 if (bo->kptr == NULL)
288 radeon_bo_check_tiling(bo, 0, 0);
289 ttm_bo_kunmap(&bo->kmap);
292 struct radeon_bo *radeon_bo_ref(struct radeon_bo *bo)
297 ttm_bo_reference(&bo->tbo);
301 void radeon_bo_unref(struct radeon_bo **bo)
303 struct ttm_buffer_object *tbo;
304 struct radeon_device *rdev;
315 int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain, u64 max_offset,
320 if (radeon_ttm_tt_has_userptr(bo->tbo.ttm))
326 *gpu_addr = radeon_bo_gpu_offset(bo);
328 if (max_offset != 0) {
331 if (domain == RADEON_GEM_DOMAIN_VRAM)
332 domain_start = bo->rdev->mc.vram_start;
334 domain_start = bo->rdev->mc.gtt_start;
335 WARN_ON_ONCE(max_offset <
336 (radeon_bo_gpu_offset(bo) - domain_start));
341 radeon_ttm_placement_from_domain(bo, domain);
342 for (i = 0; i < bo->placement.num_placement; i++) {
343 /* force to pin into visible video ram */
344 if ((bo->placements[i].flags & TTM_PL_FLAG_VRAM) &&
345 !(bo->flags & RADEON_GEM_NO_CPU_ACCESS) &&
346 (!max_offset || max_offset > bo->rdev->mc.visible_vram_size))
347 bo->placements[i].lpfn =
348 bo->rdev->mc.visible_vram_size >> PAGE_SHIFT;
350 bo->placements[i].lpfn = max_offset >> PAGE_SHIFT;
352 bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
355 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
356 if (likely(r == 0)) {
358 if (gpu_addr != NULL)
359 *gpu_addr = radeon_bo_gpu_offset(bo);
360 if (domain == RADEON_GEM_DOMAIN_VRAM)
361 bo->rdev->vram_pin_size += radeon_bo_size(bo);
363 bo->rdev->gart_pin_size += radeon_bo_size(bo);
365 dev_err(bo->rdev->dev, "%p pin failed\n", bo);
370 int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr)
372 return radeon_bo_pin_restricted(bo, domain, 0, gpu_addr);
375 int radeon_bo_unpin(struct radeon_bo *bo)
379 if (!bo->pin_count) {
380 dev_warn(bo->rdev->dev, "%p unpin not necessary\n", bo);
386 for (i = 0; i < bo->placement.num_placement; i++) {
387 bo->placements[i].lpfn = 0;
388 bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
390 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
391 if (likely(r == 0)) {
392 if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
393 bo->rdev->vram_pin_size -= radeon_bo_size(bo);
395 bo->rdev->gart_pin_size -= radeon_bo_size(bo);
397 dev_err(bo->rdev->dev, "%p validate failed for unpin\n", bo);
402 int radeon_bo_evict_vram(struct radeon_device *rdev)
404 /* late 2.6.33 fix IGP hibernate - we need pm ops to do this correct */
405 if (0 && (rdev->flags & RADEON_IS_IGP)) {
406 if (rdev->mc.igp_sideport_enabled == false)
407 /* Useless to evict on IGP chips */
410 return ttm_bo_evict_mm(&rdev->mman.bdev, TTM_PL_VRAM);
413 void radeon_bo_force_delete(struct radeon_device *rdev)
415 struct radeon_bo *bo, *n;
417 if (list_empty(&rdev->gem.objects)) {
420 dev_err(rdev->dev, "Userspace still has active objects !\n");
421 list_for_each_entry_safe(bo, n, &rdev->gem.objects, list) {
422 mutex_lock(&rdev->ddev->struct_mutex);
423 dev_err(rdev->dev, "%p %p %lu %lu force free\n",
424 &bo->gem_base, bo, (unsigned long)bo->gem_base.size,
425 *((unsigned long *)&bo->gem_base.refcount));
426 mutex_lock(&bo->rdev->gem.mutex);
427 list_del_init(&bo->list);
428 mutex_unlock(&bo->rdev->gem.mutex);
429 /* this should unref the ttm bo */
430 drm_gem_object_unreference(&bo->gem_base);
431 mutex_unlock(&rdev->ddev->struct_mutex);
435 int radeon_bo_init(struct radeon_device *rdev)
437 /* Add an MTRR for the VRAM */
438 if (!rdev->fastfb_working) {
439 rdev->mc.vram_mtrr = arch_phys_wc_add(rdev->mc.aper_base,
442 DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
443 rdev->mc.mc_vram_size >> 20,
444 (unsigned long long)rdev->mc.aper_size >> 20);
445 DRM_INFO("RAM width %dbits %cDR\n",
446 rdev->mc.vram_width, rdev->mc.vram_is_ddr ? 'D' : 'S');
447 return radeon_ttm_init(rdev);
450 void radeon_bo_fini(struct radeon_device *rdev)
452 radeon_ttm_fini(rdev);
453 arch_phys_wc_del(rdev->mc.vram_mtrr);
456 /* Returns how many bytes TTM can move per IB.
458 static u64 radeon_bo_get_threshold_for_moves(struct radeon_device *rdev)
460 u64 real_vram_size = rdev->mc.real_vram_size;
461 u64 vram_usage = atomic64_read(&rdev->vram_usage);
463 /* This function is based on the current VRAM usage.
465 * - If all of VRAM is free, allow relocating the number of bytes that
466 * is equal to 1/4 of the size of VRAM for this IB.
468 * - If more than one half of VRAM is occupied, only allow relocating
469 * 1 MB of data for this IB.
471 * - From 0 to one half of used VRAM, the threshold decreases
486 * Note: It's a threshold, not a limit. The threshold must be crossed
487 * for buffer relocations to stop, so any buffer of an arbitrary size
488 * can be moved as long as the threshold isn't crossed before
489 * the relocation takes place. We don't want to disable buffer
490 * relocations completely.
492 * The idea is that buffers should be placed in VRAM at creation time
493 * and TTM should only do a minimum number of relocations during
494 * command submission. In practice, you need to submit at least
495 * a dozen IBs to move all buffers to VRAM if they are in GTT.
497 * Also, things can get pretty crazy under memory pressure and actual
498 * VRAM usage can change a lot, so playing safe even at 50% does
499 * consistently increase performance.
502 u64 half_vram = real_vram_size >> 1;
503 u64 half_free_vram = vram_usage >= half_vram ? 0 : half_vram - vram_usage;
504 u64 bytes_moved_threshold = half_free_vram >> 1;
505 return max(bytes_moved_threshold, 1024*1024ull);
508 int radeon_bo_list_validate(struct radeon_device *rdev,
509 struct ww_acquire_ctx *ticket,
510 struct list_head *head, int ring)
512 struct radeon_bo_list *lobj;
513 struct list_head duplicates;
515 u64 bytes_moved = 0, initial_bytes_moved;
516 u64 bytes_moved_threshold = radeon_bo_get_threshold_for_moves(rdev);
518 INIT_LIST_HEAD(&duplicates);
519 r = ttm_eu_reserve_buffers(ticket, head, true, &duplicates);
520 if (unlikely(r != 0)) {
524 list_for_each_entry(lobj, head, tv.head) {
525 struct radeon_bo *bo = lobj->robj;
526 if (!bo->pin_count) {
527 u32 domain = lobj->prefered_domains;
528 u32 allowed = lobj->allowed_domains;
530 radeon_mem_type_to_domain(bo->tbo.mem.mem_type);
532 WARN_ONCE(bo->gem_base.dumb,
533 "GPU use of dumb buffer is illegal.\n");
535 /* Check if this buffer will be moved and don't move it
536 * if we have moved too many buffers for this IB already.
538 * Note that this allows moving at least one buffer of
539 * any size, because it doesn't take the current "bo"
540 * into account. We don't want to disallow buffer moves
543 if ((allowed & current_domain) != 0 &&
544 (domain & current_domain) == 0 && /* will be moved */
545 bytes_moved > bytes_moved_threshold) {
547 domain = current_domain;
551 radeon_ttm_placement_from_domain(bo, domain);
552 if (ring == R600_RING_TYPE_UVD_INDEX)
553 radeon_uvd_force_into_uvd_segment(bo, allowed);
555 initial_bytes_moved = atomic64_read(&rdev->num_bytes_moved);
556 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
557 bytes_moved += atomic64_read(&rdev->num_bytes_moved) -
561 if (r != -ERESTARTSYS &&
562 domain != lobj->allowed_domains) {
563 domain = lobj->allowed_domains;
566 ttm_eu_backoff_reservation(ticket, head);
570 lobj->gpu_offset = radeon_bo_gpu_offset(bo);
571 lobj->tiling_flags = bo->tiling_flags;
574 list_for_each_entry(lobj, &duplicates, tv.head) {
575 lobj->gpu_offset = radeon_bo_gpu_offset(lobj->robj);
576 lobj->tiling_flags = lobj->robj->tiling_flags;
582 int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
583 struct vm_area_struct *vma)
585 return ttm_fbdev_mmap(vma, &bo->tbo);
588 int radeon_bo_get_surface_reg(struct radeon_bo *bo)
590 struct radeon_device *rdev = bo->rdev;
591 struct radeon_surface_reg *reg;
592 struct radeon_bo *old_object;
596 lockdep_assert_held(&bo->tbo.resv->lock.base);
598 if (!bo->tiling_flags)
601 if (bo->surface_reg >= 0) {
602 reg = &rdev->surface_regs[bo->surface_reg];
608 for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {
610 reg = &rdev->surface_regs[i];
614 old_object = reg->bo;
615 if (old_object->pin_count == 0)
619 /* if we are all out */
620 if (i == RADEON_GEM_MAX_SURFACES) {
623 /* find someone with a surface reg and nuke their BO */
624 reg = &rdev->surface_regs[steal];
625 old_object = reg->bo;
626 /* blow away the mapping */
627 DRM_DEBUG("stealing surface reg %d from %p\n", steal, old_object);
628 ttm_bo_unmap_virtual(&old_object->tbo);
629 old_object->surface_reg = -1;
637 radeon_set_surface_reg(rdev, i, bo->tiling_flags, bo->pitch,
638 bo->tbo.mem.start << PAGE_SHIFT,
639 bo->tbo.num_pages << PAGE_SHIFT);
643 static void radeon_bo_clear_surface_reg(struct radeon_bo *bo)
645 struct radeon_device *rdev = bo->rdev;
646 struct radeon_surface_reg *reg;
648 if (bo->surface_reg == -1)
651 reg = &rdev->surface_regs[bo->surface_reg];
652 radeon_clear_surface_reg(rdev, bo->surface_reg);
655 bo->surface_reg = -1;
658 int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
659 uint32_t tiling_flags, uint32_t pitch)
661 struct radeon_device *rdev = bo->rdev;
664 if (rdev->family >= CHIP_CEDAR) {
665 unsigned bankw, bankh, mtaspect, tilesplit, stilesplit;
667 bankw = (tiling_flags >> RADEON_TILING_EG_BANKW_SHIFT) & RADEON_TILING_EG_BANKW_MASK;
668 bankh = (tiling_flags >> RADEON_TILING_EG_BANKH_SHIFT) & RADEON_TILING_EG_BANKH_MASK;
669 mtaspect = (tiling_flags >> RADEON_TILING_EG_MACRO_TILE_ASPECT_SHIFT) & RADEON_TILING_EG_MACRO_TILE_ASPECT_MASK;
670 tilesplit = (tiling_flags >> RADEON_TILING_EG_TILE_SPLIT_SHIFT) & RADEON_TILING_EG_TILE_SPLIT_MASK;
671 stilesplit = (tiling_flags >> RADEON_TILING_EG_STENCIL_TILE_SPLIT_SHIFT) & RADEON_TILING_EG_STENCIL_TILE_SPLIT_MASK;
705 if (stilesplit > 6) {
709 r = radeon_bo_reserve(bo, false);
710 if (unlikely(r != 0))
712 bo->tiling_flags = tiling_flags;
714 radeon_bo_unreserve(bo);
718 void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
719 uint32_t *tiling_flags,
722 lockdep_assert_held(&bo->tbo.resv->lock.base);
725 *tiling_flags = bo->tiling_flags;
730 int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
734 lockdep_assert_held(&bo->tbo.resv->lock.base);
736 if (!(bo->tiling_flags & RADEON_TILING_SURFACE))
740 radeon_bo_clear_surface_reg(bo);
744 if (bo->tbo.mem.mem_type != TTM_PL_VRAM) {
748 if (bo->surface_reg >= 0)
749 radeon_bo_clear_surface_reg(bo);
753 if ((bo->surface_reg >= 0) && !has_moved)
756 return radeon_bo_get_surface_reg(bo);
759 void radeon_bo_move_notify(struct ttm_buffer_object *bo,
760 struct ttm_mem_reg *new_mem)
762 struct radeon_bo *rbo;
764 if (!radeon_ttm_bo_is_radeon_bo(bo))
767 rbo = container_of(bo, struct radeon_bo, tbo);
768 radeon_bo_check_tiling(rbo, 0, 1);
769 radeon_vm_bo_invalidate(rbo->rdev, rbo);
771 /* update statistics */
775 radeon_update_memory_usage(rbo, bo->mem.mem_type, -1);
776 radeon_update_memory_usage(rbo, new_mem->mem_type, 1);
779 int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
781 struct radeon_device *rdev;
782 struct radeon_bo *rbo;
783 unsigned long offset, size, lpfn;
786 if (!radeon_ttm_bo_is_radeon_bo(bo))
788 rbo = container_of(bo, struct radeon_bo, tbo);
789 radeon_bo_check_tiling(rbo, 0, 0);
791 if (bo->mem.mem_type != TTM_PL_VRAM)
794 size = bo->mem.num_pages << PAGE_SHIFT;
795 offset = bo->mem.start << PAGE_SHIFT;
796 if ((offset + size) <= rdev->mc.visible_vram_size)
799 /* hurrah the memory is not visible ! */
800 radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM);
801 lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT;
802 for (i = 0; i < rbo->placement.num_placement; i++) {
803 /* Force into visible VRAM */
804 if ((rbo->placements[i].flags & TTM_PL_FLAG_VRAM) &&
805 (!rbo->placements[i].lpfn || rbo->placements[i].lpfn > lpfn))
806 rbo->placements[i].lpfn = lpfn;
808 r = ttm_bo_validate(bo, &rbo->placement, false, false);
809 if (unlikely(r == -ENOMEM)) {
810 radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT);
811 return ttm_bo_validate(bo, &rbo->placement, false, false);
812 } else if (unlikely(r != 0)) {
816 offset = bo->mem.start << PAGE_SHIFT;
817 /* this should never happen */
818 if ((offset + size) > rdev->mc.visible_vram_size)
824 int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type, bool no_wait)
828 r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL);
829 if (unlikely(r != 0))
832 *mem_type = bo->tbo.mem.mem_type;
834 r = ttm_bo_wait(&bo->tbo, true, true, no_wait);
835 ttm_bo_unreserve(&bo->tbo);
840 * radeon_bo_fence - add fence to buffer object
842 * @bo: buffer object in question
843 * @fence: fence to add
844 * @shared: true if fence should be added shared
847 void radeon_bo_fence(struct radeon_bo *bo, struct radeon_fence *fence,
850 struct reservation_object *resv = bo->tbo.resv;
853 reservation_object_add_shared_fence(resv, &fence->base);
855 reservation_object_add_excl_fence(resv, &fence->base);