Commit a02c4c25 authored by Gerd Hoffmann's avatar Gerd Hoffmann

drm/virtio: add plane check

Use drm_atomic_helper_check_plane_state()
to sanity check the plane state.
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Acked-by: default avatarChia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190822094657.27483-1-kraxel@redhat.com
parent 66c2dee4
......@@ -84,7 +84,22 @@ static const struct drm_plane_funcs virtio_gpu_plane_funcs = {
static int virtio_gpu_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
bool is_cursor = plane->type == DRM_PLANE_TYPE_CURSOR;
struct drm_crtc_state *crtc_state;
int ret;
if (!state->fb || !state->crtc)
return 0;
crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
if (IS_ERR(crtc_state))
return PTR_ERR(crtc_state);
ret = drm_atomic_helper_check_plane_state(state, crtc_state,
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
is_cursor, true);
return ret;
}
static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
......
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