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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_gem.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_gem.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 9b0b123ce079..dddb372de2b9 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -120,6 +120,10 @@ static int radeon_gem_set_domain(struct drm_gem_object *gobj, return r; } } + if (domain == RADEON_GEM_DOMAIN_VRAM && robj->prime_shared_count) { + /* A BO that is associated with a dma-buf cannot be sensibly migrated to VRAM */ + return -EINVAL; + } return 0; } |