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

From: Kasireddy, Vivek
Date: Tue Oct 22 2024 - 00:42:08 EST


> Subject: [PATCH v3 1/2] drm/virtio: Use
> drm_gem_plane_helper_prepare_fb()
>
> From: Dongwon Kim <dongwon.kim@xxxxxxxxx>
>
> 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.kim@xxxxxxxxx>
> [dmitry.osipenko@xxxxxxxxxxxxx>: Edit commit message]
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>
> ---
> 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);
> +
Acked-by: Vivek Kasireddy <vivek.kasireddy@xxxxxxxxx>

> if (!bo || (plane->type == DRM_PLANE_TYPE_PRIMARY && !bo-
> >guest_blob))
> return 0;
>
> --
> 2.47.0