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

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Message-ID: <20241020230803.247419-1-dmitry.osipenko@collabora.com>
Date: Mon, 21 Oct 2024 02:08:02 +0300
From: Dmitry Osipenko <dmitry.osipenko@...labora.com>
To: 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>,
	Kasireddy Vivek <vivek.kasireddy@...el.com>
Cc: dri-devel@...ts.freedesktop.org,
	virtualization@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org,
	kernel@...labora.com
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);
+
 	if (!bo || (plane->type == DRM_PLANE_TYPE_PRIMARY && !bo->guest_blob))
 		return 0;
 
-- 
2.47.0