linux-kernel - RE: [PATCH v3 1/2] drm/virtio: Use drm_gem_plane_helper_prepare

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Message-ID: <IA0PR11MB7185BF5A10E79A81B1A79796F84C2@IA0PR11MB7185.namprd11.prod.outlook.com>
Date: Tue, 22 Oct 2024 04:41:49 +0000
From: "Kasireddy, Vivek" <vivek.kasireddy@...el.com>
To: Dmitry Osipenko <dmitry.osipenko@...labora.com>, David Airlie
	<airlied@...hat.com>, Gerd Hoffmann <kraxel@...hat.com>, Gurchetan Singh
	<gurchetansingh@...omium.org>, Chia-I Wu <olvaffe@...il.com>, Rob Clark
	<robdclark@...il.com>, Pierre-Eric Pelloux-Prayer
	<pierre-eric.pelloux-prayer@....com>, "Kim, Dongwon" <dongwon.kim@...el.com>
CC: "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"virtualization@...ts.linux-foundation.org"
	<virtualization@...ts.linux-foundation.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "kernel@...labora.com" <kernel@...labora.com>
Subject: RE: [PATCH v3 1/2] drm/virtio: Use drm_gem_plane_helper_prepare_fb()

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

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