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/amdgpu_drm.h>
36 #include <drm/drm_cache.h>
38 #include "amdgpu_trace.h"
41 int amdgpu_ttm_init(struct amdgpu_device *adev);
42 void amdgpu_ttm_fini(struct amdgpu_device *adev);
44 static u64 amdgpu_get_vis_part_size(struct amdgpu_device *adev,
45 struct ttm_mem_reg *mem)
47 if (mem->start << PAGE_SHIFT >= adev->mc.visible_vram_size)
50 return ((mem->start << PAGE_SHIFT) + mem->size) >
51 adev->mc.visible_vram_size ?
52 adev->mc.visible_vram_size - (mem->start << PAGE_SHIFT) :
56 static void amdgpu_update_memory_usage(struct amdgpu_device *adev,
57 struct ttm_mem_reg *old_mem,
58 struct ttm_mem_reg *new_mem)
65 switch (new_mem->mem_type) {
67 atomic64_add(new_mem->size, &adev->gtt_usage);
70 atomic64_add(new_mem->size, &adev->vram_usage);
71 vis_size = amdgpu_get_vis_part_size(adev, new_mem);
72 atomic64_add(vis_size, &adev->vram_vis_usage);
78 switch (old_mem->mem_type) {
80 atomic64_sub(old_mem->size, &adev->gtt_usage);
83 atomic64_sub(old_mem->size, &adev->vram_usage);
84 vis_size = amdgpu_get_vis_part_size(adev, old_mem);
85 atomic64_sub(vis_size, &adev->vram_vis_usage);
91 static void amdgpu_ttm_bo_destroy(struct ttm_buffer_object *tbo)
95 bo = container_of(tbo, struct amdgpu_bo, tbo);
97 amdgpu_update_memory_usage(bo->adev, &bo->tbo.mem, NULL);
99 drm_gem_object_release(&bo->gem_base);
100 amdgpu_bo_unref(&bo->parent);
101 if (!list_empty(&bo->shadow_list)) {
102 mutex_lock(&bo->adev->shadow_list_lock);
103 list_del_init(&bo->shadow_list);
104 mutex_unlock(&bo->adev->shadow_list_lock);
110 bool amdgpu_ttm_bo_is_amdgpu_bo(struct ttm_buffer_object *bo)
112 if (bo->destroy == &amdgpu_ttm_bo_destroy)
117 static void amdgpu_ttm_placement_init(struct amdgpu_device *adev,
118 struct ttm_placement *placement,
119 struct ttm_place *places,
120 u32 domain, u64 flags)
124 if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
125 unsigned visible_pfn = adev->mc.visible_vram_size >> PAGE_SHIFT;
127 if (flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS &&
128 !(flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) &&
129 adev->mc.visible_vram_size < adev->mc.real_vram_size) {
130 places[c].fpfn = visible_pfn;
132 places[c].flags = TTM_PL_FLAG_WC |
133 TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM |
140 places[c].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED |
142 if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
143 places[c].lpfn = visible_pfn;
145 places[c].flags |= TTM_PL_FLAG_TOPDOWN;
149 if (domain & AMDGPU_GEM_DOMAIN_GTT) {
152 places[c].flags = TTM_PL_FLAG_TT;
153 if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
154 places[c].flags |= TTM_PL_FLAG_WC |
155 TTM_PL_FLAG_UNCACHED;
157 places[c].flags |= TTM_PL_FLAG_CACHED;
161 if (domain & AMDGPU_GEM_DOMAIN_CPU) {
164 places[c].flags = TTM_PL_FLAG_SYSTEM;
165 if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
166 places[c].flags |= TTM_PL_FLAG_WC |
167 TTM_PL_FLAG_UNCACHED;
169 places[c].flags |= TTM_PL_FLAG_CACHED;
173 if (domain & AMDGPU_GEM_DOMAIN_GDS) {
176 places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_GDS;
180 if (domain & AMDGPU_GEM_DOMAIN_GWS) {
183 places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_GWS;
187 if (domain & AMDGPU_GEM_DOMAIN_OA) {
190 places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_OA;
197 places[c].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
201 placement->num_placement = c;
202 placement->placement = places;
204 placement->num_busy_placement = c;
205 placement->busy_placement = places;
208 void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *rbo, u32 domain)
210 amdgpu_ttm_placement_init(rbo->adev, &rbo->placement,
211 rbo->placements, domain, rbo->flags);
214 static void amdgpu_fill_placement_to_bo(struct amdgpu_bo *bo,
215 struct ttm_placement *placement)
217 BUG_ON(placement->num_placement > (AMDGPU_GEM_DOMAIN_MAX + 1));
219 memcpy(bo->placements, placement->placement,
220 placement->num_placement * sizeof(struct ttm_place));
221 bo->placement.num_placement = placement->num_placement;
222 bo->placement.num_busy_placement = placement->num_busy_placement;
223 bo->placement.placement = bo->placements;
224 bo->placement.busy_placement = bo->placements;
228 * amdgpu_bo_create_kernel - create BO for kernel use
230 * @adev: amdgpu device object
231 * @size: size for the new BO
232 * @align: alignment for the new BO
233 * @domain: where to place it
234 * @bo_ptr: resulting BO
235 * @gpu_addr: GPU addr of the pinned BO
236 * @cpu_addr: optional CPU address mapping
238 * Allocates and pins a BO for kernel internal use.
240 * Returns 0 on success, negative error code otherwise.
242 int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
243 unsigned long size, int align,
244 u32 domain, struct amdgpu_bo **bo_ptr,
245 u64 *gpu_addr, void **cpu_addr)
249 r = amdgpu_bo_create(adev, size, align, true, domain,
250 AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
253 dev_err(adev->dev, "(%d) failed to allocate kernel bo\n", r);
257 r = amdgpu_bo_reserve(*bo_ptr, false);
259 dev_err(adev->dev, "(%d) failed to reserve kernel bo\n", r);
263 r = amdgpu_bo_pin(*bo_ptr, domain, gpu_addr);
265 dev_err(adev->dev, "(%d) kernel bo pin failed\n", r);
266 goto error_unreserve;
270 r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
272 dev_err(adev->dev, "(%d) kernel bo map failed\n", r);
273 goto error_unreserve;
277 amdgpu_bo_unreserve(*bo_ptr);
282 amdgpu_bo_unreserve(*bo_ptr);
285 amdgpu_bo_unref(bo_ptr);
290 int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
291 unsigned long size, int byte_align,
292 bool kernel, u32 domain, u64 flags,
294 struct ttm_placement *placement,
295 struct reservation_object *resv,
296 struct amdgpu_bo **bo_ptr)
298 struct amdgpu_bo *bo;
299 enum ttm_bo_type type;
300 unsigned long page_align;
304 page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT;
305 size = ALIGN(size, PAGE_SIZE);
308 type = ttm_bo_type_kernel;
310 type = ttm_bo_type_sg;
312 type = ttm_bo_type_device;
316 acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size,
317 sizeof(struct amdgpu_bo));
319 bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
322 r = drm_gem_object_init(adev->ddev, &bo->gem_base, size);
328 INIT_LIST_HEAD(&bo->list);
329 INIT_LIST_HEAD(&bo->shadow_list);
330 INIT_LIST_HEAD(&bo->va);
331 bo->prefered_domains = domain & (AMDGPU_GEM_DOMAIN_VRAM |
332 AMDGPU_GEM_DOMAIN_GTT |
333 AMDGPU_GEM_DOMAIN_CPU |
334 AMDGPU_GEM_DOMAIN_GDS |
335 AMDGPU_GEM_DOMAIN_GWS |
336 AMDGPU_GEM_DOMAIN_OA);
337 bo->allowed_domains = bo->prefered_domains;
338 if (!kernel && bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
339 bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
343 /* For architectures that don't support WC memory,
344 * mask out the WC flag from the BO
346 if (!drm_arch_can_wc_memory())
347 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
349 amdgpu_fill_placement_to_bo(bo, placement);
350 /* Kernel allocation are uninterruptible */
351 r = ttm_bo_init(&adev->mman.bdev, &bo->tbo, size, type,
352 &bo->placement, page_align, !kernel, NULL,
353 acc_size, sg, resv, &amdgpu_ttm_bo_destroy);
354 if (unlikely(r != 0)) {
358 if (flags & AMDGPU_GEM_CREATE_VRAM_CLEARED &&
359 bo->tbo.mem.placement & TTM_PL_FLAG_VRAM) {
362 if (adev->mman.buffer_funcs_ring == NULL ||
363 !adev->mman.buffer_funcs_ring->ready) {
368 r = amdgpu_bo_reserve(bo, false);
369 if (unlikely(r != 0))
372 amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_VRAM);
373 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
374 if (unlikely(r != 0))
377 amdgpu_fill_buffer(bo, 0, bo->tbo.resv, &fence);
378 amdgpu_bo_fence(bo, fence, false);
379 amdgpu_bo_unreserve(bo);
380 fence_put(bo->tbo.moving);
381 bo->tbo.moving = fence_get(fence);
386 trace_amdgpu_bo_create(bo);
391 amdgpu_bo_unreserve(bo);
393 amdgpu_bo_unref(&bo);
397 static int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
398 unsigned long size, int byte_align,
399 struct amdgpu_bo *bo)
401 struct ttm_placement placement = {0};
402 struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
408 bo->flags |= AMDGPU_GEM_CREATE_SHADOW;
409 memset(&placements, 0,
410 (AMDGPU_GEM_DOMAIN_MAX + 1) * sizeof(struct ttm_place));
412 amdgpu_ttm_placement_init(adev, &placement,
413 placements, AMDGPU_GEM_DOMAIN_GTT,
414 AMDGPU_GEM_CREATE_CPU_GTT_USWC);
416 r = amdgpu_bo_create_restricted(adev, size, byte_align, true,
417 AMDGPU_GEM_DOMAIN_GTT,
418 AMDGPU_GEM_CREATE_CPU_GTT_USWC,
423 bo->shadow->parent = amdgpu_bo_ref(bo);
424 mutex_lock(&adev->shadow_list_lock);
425 list_add_tail(&bo->shadow_list, &adev->shadow_list);
426 mutex_unlock(&adev->shadow_list_lock);
432 int amdgpu_bo_create(struct amdgpu_device *adev,
433 unsigned long size, int byte_align,
434 bool kernel, u32 domain, u64 flags,
436 struct reservation_object *resv,
437 struct amdgpu_bo **bo_ptr)
439 struct ttm_placement placement = {0};
440 struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
443 memset(&placements, 0,
444 (AMDGPU_GEM_DOMAIN_MAX + 1) * sizeof(struct ttm_place));
446 amdgpu_ttm_placement_init(adev, &placement,
447 placements, domain, flags);
449 r = amdgpu_bo_create_restricted(adev, size, byte_align, kernel,
450 domain, flags, sg, &placement,
455 if (amdgpu_need_backup(adev) && (flags & AMDGPU_GEM_CREATE_SHADOW)) {
456 r = amdgpu_bo_create_shadow(adev, size, byte_align, (*bo_ptr));
458 amdgpu_bo_unref(bo_ptr);
464 int amdgpu_bo_backup_to_shadow(struct amdgpu_device *adev,
465 struct amdgpu_ring *ring,
466 struct amdgpu_bo *bo,
467 struct reservation_object *resv,
468 struct fence **fence,
472 struct amdgpu_bo *shadow = bo->shadow;
473 uint64_t bo_addr, shadow_addr;
479 bo_addr = amdgpu_bo_gpu_offset(bo);
480 shadow_addr = amdgpu_bo_gpu_offset(bo->shadow);
482 r = reservation_object_reserve_shared(bo->tbo.resv);
486 r = amdgpu_copy_buffer(ring, bo_addr, shadow_addr,
487 amdgpu_bo_size(bo), resv, fence,
490 amdgpu_bo_fence(bo, *fence, true);
496 int amdgpu_bo_restore_from_shadow(struct amdgpu_device *adev,
497 struct amdgpu_ring *ring,
498 struct amdgpu_bo *bo,
499 struct reservation_object *resv,
500 struct fence **fence,
504 struct amdgpu_bo *shadow = bo->shadow;
505 uint64_t bo_addr, shadow_addr;
511 bo_addr = amdgpu_bo_gpu_offset(bo);
512 shadow_addr = amdgpu_bo_gpu_offset(bo->shadow);
514 r = reservation_object_reserve_shared(bo->tbo.resv);
518 r = amdgpu_copy_buffer(ring, shadow_addr, bo_addr,
519 amdgpu_bo_size(bo), resv, fence,
522 amdgpu_bo_fence(bo, *fence, true);
528 int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
533 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
543 r = reservation_object_wait_timeout_rcu(bo->tbo.resv, false, false,
544 MAX_SCHEDULE_TIMEOUT);
548 r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
552 bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
559 void amdgpu_bo_kunmap(struct amdgpu_bo *bo)
561 if (bo->kptr == NULL)
564 ttm_bo_kunmap(&bo->kmap);
567 struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo)
572 ttm_bo_reference(&bo->tbo);
576 void amdgpu_bo_unref(struct amdgpu_bo **bo)
578 struct ttm_buffer_object *tbo;
589 int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
590 u64 min_offset, u64 max_offset,
596 if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
599 if (WARN_ON_ONCE(min_offset > max_offset))
603 uint32_t mem_type = bo->tbo.mem.mem_type;
605 if (domain != amdgpu_mem_type_to_domain(mem_type))
610 *gpu_addr = amdgpu_bo_gpu_offset(bo);
612 if (max_offset != 0) {
613 u64 domain_start = bo->tbo.bdev->man[mem_type].gpu_offset;
614 WARN_ON_ONCE(max_offset <
615 (amdgpu_bo_gpu_offset(bo) - domain_start));
620 amdgpu_ttm_placement_from_domain(bo, domain);
621 for (i = 0; i < bo->placement.num_placement; i++) {
622 /* force to pin into visible video ram */
623 if ((bo->placements[i].flags & TTM_PL_FLAG_VRAM) &&
624 !(bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) &&
625 (!max_offset || max_offset >
626 bo->adev->mc.visible_vram_size)) {
627 if (WARN_ON_ONCE(min_offset >
628 bo->adev->mc.visible_vram_size))
630 fpfn = min_offset >> PAGE_SHIFT;
631 lpfn = bo->adev->mc.visible_vram_size >> PAGE_SHIFT;
633 fpfn = min_offset >> PAGE_SHIFT;
634 lpfn = max_offset >> PAGE_SHIFT;
636 if (fpfn > bo->placements[i].fpfn)
637 bo->placements[i].fpfn = fpfn;
638 if (!bo->placements[i].lpfn ||
639 (lpfn && lpfn < bo->placements[i].lpfn))
640 bo->placements[i].lpfn = lpfn;
641 bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
644 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
646 dev_err(bo->adev->dev, "%p pin failed\n", bo);
651 if (gpu_addr != NULL)
652 *gpu_addr = amdgpu_bo_gpu_offset(bo);
653 if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
654 bo->adev->vram_pin_size += amdgpu_bo_size(bo);
655 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
656 bo->adev->invisible_pin_size += amdgpu_bo_size(bo);
657 } else if (domain == AMDGPU_GEM_DOMAIN_GTT) {
658 bo->adev->gart_pin_size += amdgpu_bo_size(bo);
665 int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain, u64 *gpu_addr)
667 return amdgpu_bo_pin_restricted(bo, domain, 0, 0, gpu_addr);
670 int amdgpu_bo_unpin(struct amdgpu_bo *bo)
674 if (!bo->pin_count) {
675 dev_warn(bo->adev->dev, "%p unpin not necessary\n", bo);
681 for (i = 0; i < bo->placement.num_placement; i++) {
682 bo->placements[i].lpfn = 0;
683 bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
685 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
687 dev_err(bo->adev->dev, "%p validate failed for unpin\n", bo);
691 if (bo->tbo.mem.mem_type == TTM_PL_VRAM) {
692 bo->adev->vram_pin_size -= amdgpu_bo_size(bo);
693 if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
694 bo->adev->invisible_pin_size -= amdgpu_bo_size(bo);
696 bo->adev->gart_pin_size -= amdgpu_bo_size(bo);
703 int amdgpu_bo_evict_vram(struct amdgpu_device *adev)
705 /* late 2.6.33 fix IGP hibernate - we need pm ops to do this correct */
706 if (0 && (adev->flags & AMD_IS_APU)) {
707 /* Useless to evict on IGP chips */
710 return ttm_bo_evict_mm(&adev->mman.bdev, TTM_PL_VRAM);
713 static const char *amdgpu_vram_names[] = {
724 int amdgpu_bo_init(struct amdgpu_device *adev)
726 /* Add an MTRR for the VRAM */
727 adev->mc.vram_mtrr = arch_phys_wc_add(adev->mc.aper_base,
729 DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n",
730 adev->mc.mc_vram_size >> 20,
731 (unsigned long long)adev->mc.aper_size >> 20);
732 DRM_INFO("RAM width %dbits %s\n",
733 adev->mc.vram_width, amdgpu_vram_names[adev->mc.vram_type]);
734 return amdgpu_ttm_init(adev);
737 void amdgpu_bo_fini(struct amdgpu_device *adev)
739 amdgpu_ttm_fini(adev);
740 arch_phys_wc_del(adev->mc.vram_mtrr);
743 int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo,
744 struct vm_area_struct *vma)
746 return ttm_fbdev_mmap(vma, &bo->tbo);
749 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags)
751 if (AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT) > 6)
754 bo->tiling_flags = tiling_flags;
758 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags)
760 lockdep_assert_held(&bo->tbo.resv->lock.base);
763 *tiling_flags = bo->tiling_flags;
766 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
767 uint32_t metadata_size, uint64_t flags)
771 if (!metadata_size) {
772 if (bo->metadata_size) {
775 bo->metadata_size = 0;
780 if (metadata == NULL)
783 buffer = kmemdup(metadata, metadata_size, GFP_KERNEL);
788 bo->metadata_flags = flags;
789 bo->metadata = buffer;
790 bo->metadata_size = metadata_size;
795 int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
796 size_t buffer_size, uint32_t *metadata_size,
799 if (!buffer && !metadata_size)
803 if (buffer_size < bo->metadata_size)
806 if (bo->metadata_size)
807 memcpy(buffer, bo->metadata, bo->metadata_size);
811 *metadata_size = bo->metadata_size;
813 *flags = bo->metadata_flags;
818 void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
819 struct ttm_mem_reg *new_mem)
821 struct amdgpu_bo *rbo;
822 struct ttm_mem_reg *old_mem = &bo->mem;
824 if (!amdgpu_ttm_bo_is_amdgpu_bo(bo))
827 rbo = container_of(bo, struct amdgpu_bo, tbo);
828 amdgpu_vm_bo_invalidate(rbo->adev, rbo);
830 /* update statistics */
834 /* move_notify is called before move happens */
835 amdgpu_update_memory_usage(rbo->adev, &bo->mem, new_mem);
837 trace_amdgpu_ttm_bo_move(rbo, new_mem->mem_type, old_mem->mem_type);
840 int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
842 struct amdgpu_device *adev;
843 struct amdgpu_bo *abo;
844 unsigned long offset, size, lpfn;
847 if (!amdgpu_ttm_bo_is_amdgpu_bo(bo))
850 abo = container_of(bo, struct amdgpu_bo, tbo);
852 if (bo->mem.mem_type != TTM_PL_VRAM)
855 size = bo->mem.num_pages << PAGE_SHIFT;
856 offset = bo->mem.start << PAGE_SHIFT;
857 if ((offset + size) <= adev->mc.visible_vram_size)
860 /* Can't move a pinned BO to visible VRAM */
861 if (abo->pin_count > 0)
864 /* hurrah the memory is not visible ! */
865 amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM);
866 lpfn = adev->mc.visible_vram_size >> PAGE_SHIFT;
867 for (i = 0; i < abo->placement.num_placement; i++) {
868 /* Force into visible VRAM */
869 if ((abo->placements[i].flags & TTM_PL_FLAG_VRAM) &&
870 (!abo->placements[i].lpfn ||
871 abo->placements[i].lpfn > lpfn))
872 abo->placements[i].lpfn = lpfn;
874 r = ttm_bo_validate(bo, &abo->placement, false, false);
875 if (unlikely(r == -ENOMEM)) {
876 amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_GTT);
877 return ttm_bo_validate(bo, &abo->placement, false, false);
878 } else if (unlikely(r != 0)) {
882 offset = bo->mem.start << PAGE_SHIFT;
883 /* this should never happen */
884 if ((offset + size) > adev->mc.visible_vram_size)
891 * amdgpu_bo_fence - add fence to buffer object
893 * @bo: buffer object in question
894 * @fence: fence to add
895 * @shared: true if fence should be added shared
898 void amdgpu_bo_fence(struct amdgpu_bo *bo, struct fence *fence,
901 struct reservation_object *resv = bo->tbo.resv;
904 reservation_object_add_shared_fence(resv, fence);
906 reservation_object_add_excl_fence(resv, fence);
910 * amdgpu_bo_gpu_offset - return GPU offset of bo
911 * @bo: amdgpu object for which we query the offset
913 * Returns current GPU offset of the object.
915 * Note: object should either be pinned or reserved when calling this
916 * function, it might be useful to add check for this for debugging.
918 u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
920 WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_SYSTEM);
921 WARN_ON_ONCE(!ww_mutex_is_locked(&bo->tbo.resv->lock) &&
924 return bo->tbo.offset;