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| author | Michel Dänzer <michel.daenzer@amd.com> | 2016-03-28 16:39:14 +0900 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-03-28 11:54:51 -0400 |
| commit | e1a575ada8d2a3c3f107fdd12ac9215f983a7c80 (patch) | |
| tree | 4e67cb07960cfa27696fde8d5bd4ba7ea3650643 /drivers/gpu | |
| parent | 0e5585dc870af947fab2af96a88c2d8b4270247c (diff) | |
| download | talos-obmc-linux-e1a575ada8d2a3c3f107fdd12ac9215f983a7c80.tar.gz talos-obmc-linux-e1a575ada8d2a3c3f107fdd12ac9215f983a7c80.zip | |
drm/radeon: Don't move pinned BOs
The purpose of pinning is to prevent a buffer from moving.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index dd46c38676db..2d901bf28a94 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -799,6 +799,10 @@ int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo) if ((offset + size) <= rdev->mc.visible_vram_size) return 0; + /* Can't move a pinned BO to visible VRAM */ + if (rbo->pin_count > 0) + return -EINVAL; + /* hurrah the memory is not visible ! */ radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM); lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT; diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index e06ac546a90f..636c1cf7d106 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -397,9 +397,15 @@ static int radeon_bo_move(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem) { struct radeon_device *rdev; + struct radeon_bo *rbo; struct ttm_mem_reg *old_mem = &bo->mem; int r; + /* Can't move a pinned BO */ + rbo = container_of(bo, struct radeon_bo, tbo); + if (WARN_ON_ONCE(rbo->pin_count > 0)) + return -EINVAL; + rdev = radeon_get_rdev(bo->bdev); if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) { radeon_move_null(bo, new_mem); |
