[PATCH v3 1/2] drm/virtio: Use drm_gem_plane_helper_prepare_fb()

[Dmitry Osipenko]

From: Dongwon Kim <dongwon....@intel.com>

Use drm_gem_plane_helper_prepare_fb() helper for explicit framebuffer
synchronization. We need to wait for explicit fences in a case of
Venus and native contexts when guest user space uses explicit fencing.

Signed-off-by: Dongwon Kim <dongwon....@intel.com>
[dmitry.osipe...@collabora.com>: Edit commit message]
Signed-off-by: Dmitry Osipenko <dmitry.osipe...@collabora.com>
---
 drivers/gpu/drm/virtio/virtgpu_plane.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c 
b/drivers/gpu/drm/virtio/virtgpu_plane.c
index a72a2dbda031..ab7232921cb7 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -26,6 +26,7 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 
 #include "virtgpu_drv.h"
 
@@ -254,6 +255,9 @@ static int virtio_gpu_plane_prepare_fb(struct drm_plane 
*plane,
 
        vgfb = to_virtio_gpu_framebuffer(new_state->fb);
        bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]);
+
+       drm_gem_plane_helper_prepare_fb(plane, new_state);
+
        if (!bo || (plane->type == DRM_PLANE_TYPE_PRIMARY && !bo->guest_blob))
                return 0;
 
-- 
2.47.0