From 3954ff10e06e4fbc548fc02ff1fcaaac3228fed5 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 12 Dec 2019 13:53:44 +0100 Subject: [PATCH] drm/virtio: skip set_scanout if framebuffer didn't change v2: also check src rect (Chia-I Wu). Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20191212125346.8334-2-kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_plane.c | 35 +++++++++++++++----------- 1 file changed, 21 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c index 947e65b51555..32de6bd9893a 100644 --- a/drivers/gpu/drm/virtio/virtgpu_plane.c +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c @@ -151,20 +151,27 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane, if (bo->dumb) virtio_gpu_update_dumb_bo(vgdev, bo, plane->state); - 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, - plane->state->crtc_x, plane->state->crtc_y, - plane->state->src_w >> 16, - plane->state->src_h >> 16, - plane->state->src_x >> 16, - plane->state->src_y >> 16); - virtio_gpu_cmd_set_scanout(vgdev, output->index, - bo->hw_res_handle, - plane->state->src_w >> 16, - plane->state->src_h >> 16, - plane->state->src_x >> 16, - plane->state->src_y >> 16); + 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, + plane->state->crtc_x, plane->state->crtc_y, + plane->state->src_w >> 16, + plane->state->src_h >> 16, + plane->state->src_x >> 16, + plane->state->src_y >> 16); + virtio_gpu_cmd_set_scanout(vgdev, output->index, + bo->hw_res_handle, + plane->state->src_w >> 16, + 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, -- 2.30.2