Commit a294043b authored by Christopher James Halse Rogers's avatar Christopher James Halse Rogers Committed by Alex Deucher

drm/radeon: Fail fb creation from imported dma-bufs.

Any use of the framebuffer will migrate it to VRAM, which is not sensible for
an imported dma-buf.

v2: Use DRM_DEBUG_KMS to prevent userspace accidentally spamming dmesg.
Reviewed-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarChristopher James Halse Rogers <christopher.halse.rogers@canonical.com>
CC: amd-gfx@lists.freedesktop.org
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 01687781
......@@ -1354,6 +1354,12 @@ radeon_user_framebuffer_create(struct drm_device *dev,
return ERR_PTR(-ENOENT);
}
/* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */
if (obj->import_attach) {
DRM_DEBUG_KMS("Cannot create framebuffer from imported dma_buf\n");
return ERR_PTR(-EINVAL);
}
radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
if (radeon_fb == NULL) {
drm_gem_object_unreference_unlocked(obj);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment