Commit 3954ff10 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

drm/virtio: skip set_scanout if framebuffer didn't change 



v2: also check src rect (Chia-I Wu).

Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: default avatarChia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20191212125346.8334-2-kraxel@redhat.com
parent 4ad7056a

drivers/gpu/drm/virtio/virtgpu_plane.c

+21 −14
Original line number Diff line number Diff line
@@ -151,6 +151,11 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane, 
	if (bo->dumb)

		virtio_gpu_update_dumb_bo(vgdev, bo, plane->state);



	if (plane->state->fb != old_state->fb ||

	    plane->state->src_w != old_state->src_w ||

	    plane->state->src_h != old_state->src_h ||

	    plane->state->src_x != old_state->src_x ||

	    plane->state->src_y != old_state->src_y) {

		DRM_DEBUG("handle 0x%x, crtc %dx%d+%d+%d, src %dx%d+%d+%d\n",

			  bo->hw_res_handle,

			  plane->state->crtc_w, plane->state->crtc_h,
@@ -165,6 +170,8 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane, 
					   plane->state->src_h >> 16,

					   plane->state->src_x >> 16,

					   plane->state->src_y >> 16);

	}



	virtio_gpu_cmd_resource_flush(vgdev, bo->hw_res_handle,

				      plane->state->src_x >> 16,

				      plane->state->src_y >> 16,

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