diff options
| author | Christian König <[email protected]> | 2015-05-13 12:30:53 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2015-06-04 01:03:43 +0000 |
| commit | 271c81256612b162a9ae0f8c0f0a055a7523cea5 (patch) | |
| tree | 344441e66f38b751741730a6c761f3a102527897 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | drm/amdgpu: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling (diff) | |
| download | kernel-271c81256612b162a9ae0f8c0f0a055a7523cea5.tar.gz kernel-271c81256612b162a9ae0f8c0f0a055a7523cea5.zip | |
drm/amdgpu: enforce AMDGPU_GEM_CREATE_NO_CPU_ACCESS
Deny user and kernel mapping if we said we never want to do so.
Signed-off-by: Christian König <[email protected]>
Reviewed-by: Jammy Zhou <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 992b7f5843bc..a721f5044557 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -263,6 +263,9 @@ int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr) bool is_iomem; int r; + if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) + return -EPERM; + if (bo->kptr) { if (ptr) { *ptr = bo->kptr; |