diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_object.c')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.c | 79 |
1 files changed, 64 insertions, 15 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 35da1b4..3e35bbe 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -513,21 +513,70 @@ int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo) rbo = container_of(bo, struct radeon_bo, tbo); radeon_bo_check_tiling(rbo, 0, 0); rdev = rbo->rdev; - if (bo->mem.mem_type == TTM_PL_VRAM) { - size = bo->mem.num_pages << PAGE_SHIFT; - offset = bo->mem.start << PAGE_SHIFT; - if ((offset + size) > rdev->mc.visible_vram_size) { - /* hurrah the memory is not visible ! */ - radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM); - rbo->placement.lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT; - r = ttm_bo_validate(bo, &rbo->placement, false, true, false); - if (unlikely(r != 0)) - return r; - offset = bo->mem.start << PAGE_SHIFT; - /* this should not happen */ - if ((offset + size) > rdev->mc.visible_vram_size) - return -EINVAL; - } + if (bo->mem.mem_type != TTM_PL_VRAM) + return 0; + + size = bo->mem.num_pages << PAGE_SHIFT; + offset = bo->mem.start << PAGE_SHIFT; + if ((offset + size) <= rdev->mc.visible_vram_size) + return 0; + + /* hurrah the memory is not visible ! */ + radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM); + rbo->placement.lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT; + r = ttm_bo_validate(bo, &rbo->placement, false, true, false); + if (unlikely(r == -ENOMEM)) { + radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT); + return ttm_bo_validate(bo, &rbo->placement, false, true, false); + } else if (unlikely(r != 0)) { + return r; + } + + offset = bo->mem.start << PAGE_SHIFT; + /* this should never happen */ + if ((offset + size) > rdev->mc.visible_vram_size) + return -EINVAL; + + return 0; +} + +int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type, bool no_wait) +{ + int r; + + r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0); + if (unlikely(r != 0)) + return r; + spin_lock(&bo->tbo.bdev->fence_lock); + if (mem_type) + *mem_type = bo->tbo.mem.mem_type; + if (bo->tbo.sync_obj) + r = ttm_bo_wait(&bo->tbo, true, true, no_wait); + spin_unlock(&bo->tbo.bdev->fence_lock); + ttm_bo_unreserve(&bo->tbo); + return r; +} + + +/** + * radeon_bo_reserve - reserve bo + * @bo: bo structure + * @no_wait: don't sleep while trying to reserve (return -EBUSY) + * + * Returns: + * -EBUSY: buffer is busy and @no_wait is true + * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by + * a signal. Release all buffer reservations and return to user-space. + */ +int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait) +{ + int r; + + r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0); + if (unlikely(r != 0)) { + if (r != -ERESTARTSYS) + dev_err(bo->rdev->dev, "%p reserve failed\n", bo); + return r; } return 0; } |