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| author | Christopher James Halse Rogers <christopher.halse.rogers@canonical.com> | 2017-04-03 06:35:23 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-04-07 19:20:41 +0300 |
| commit | ede2e019adec0b6fd21a54ace92358969f1a1629 (patch) | |
| tree | 6af5eeb8a3093ac93c41eac3f99e373eed969f29 /drivers/gpu/drm/radeon/radeon_object.c | |
| parent | 0d16d299400471735e77d7a8c4107e71b523446d (diff) | |
| download | linux-ede2e019adec0b6fd21a54ace92358969f1a1629.tar.xz | |
drm/radeon: Refuse to migrate a prime BO to VRAM. (v2)
BOs shared via dma-buf, either imported or exported, cannot sensibly be migrated to VRAM
without breaking the dma-buf sharing. Refuse userspace requests to migrate to VRAM,
ensure such BOs are not migrated during command submission, and refuse to pin them
to VRAM.
v2: Don't pin BOs in GTT. Instead, refuse to migrate BOs to VRAM.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_object.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 74b276060c20..bec2ec056de4 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -352,6 +352,11 @@ int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain, u64 max_offset, return 0; } + if (bo->prime_shared_count && domain == RADEON_GEM_DOMAIN_VRAM) { + /* A BO shared as a dma-buf cannot be sensibly migrated to VRAM */ + return -EINVAL; + } + radeon_ttm_placement_from_domain(bo, domain); for (i = 0; i < bo->placement.num_placement; i++) { /* force to pin into visible video ram */ |