On 29/03/17 01:02 PM, r...@ubuntu.com wrote: > From: Christopher James Halse Rogers <christopher.halse.rog...@canonical.com> > > 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. > > Signed-off-by: Christopher James Halse Rogers > <christopher.halse.rog...@canonical.com> > CC: amd-gfx@lists.freedesktop.org > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c > index 39fc388f222a..2f2e9b5c8a6a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c > @@ -612,6 +612,12 @@ amdgpu_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); > + } > + > amdgpu_fb = kzalloc(sizeof(*amdgpu_fb), GFP_KERNEL); > if (amdgpu_fb == NULL) { > drm_gem_object_unreference_unlocked(obj); >
This patch and v2 of patch 5 are Reviewed-by: Michel Dänzer <michel.daen...@amd.com> -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx