Commit 4429b5de authored by Gurchetan Singh's avatar Gurchetan Singh Committed by Gerd Hoffmann
Browse files

drm/virtio: implement blob resources: report blob mem to userspace 



The stride field has never been used, so repurpose it to be
"blob_mem". This way, userspace can know the memory properties
of the blob if it's passed between userspace processes and
no suitable userspace API exists to transmit that knowledge.

Signed-off-by: default avatarGurchetan Singh <gurchetansingh@chromium.org>
Acked-by: default avatarTomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-17-gurchetansingh@chromium.org


Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 50c3d193

drivers/gpu/drm/virtio/virtgpu_ioctl.c

+3 −0
Original line number Diff line number Diff line
@@ -301,6 +301,9 @@ static int virtio_gpu_resource_info_ioctl(struct drm_device *dev, void *data, 


	ri->size = qobj->base.base.size;

	ri->res_handle = qobj->hw_res_handle;

	if (qobj->host3d_blob || qobj->guest_blob)

		ri->blob_mem = qobj->blob_mem;



	drm_gem_object_put(gobj);

	return 0;

}