linux-kernel - [PATCH AUTOSEL 6.14 02/44] drm/virtio: Set missing bo->attached flag

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Message-Id: <20250403191313.2679091-2-sashal@kernel.org>
Date: Thu,  3 Apr 2025 15:12:31 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Dmitry Osipenko <dmitry.osipenko@...labora.com>,
	Vivek Kasireddy <vivek.kasireddy@...el.com>,
	Sasha Levin <sashal@...nel.org>,
	airlied@...hat.com,
	kraxel@...hat.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	simona@...ll.ch,
	dri-devel@...ts.freedesktop.org,
	virtualization@...ts.linux.dev
Subject: [PATCH AUTOSEL 6.14 02/44] drm/virtio: Set missing bo->attached flag

From: Dmitry Osipenko <dmitry.osipenko@...labora.com>

[ Upstream commit ffda6454267d0b870f3a09945a7ce88137b914a6 ]

VirtIO-GPU driver now supports detachment of shmem BOs from host, but
doing it only for imported dma-bufs. Mark all shmem BOs as attached, not
just dma-bufs. This is a minor correction since detachment of a non-dmabuf
BOs not supported today.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
Acked-by: Vivek Kasireddy <vivek.kasireddy@...el.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241129155357.2265357-1-dmitry.osipenko@collabora.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/virtio/virtgpu_prime.c | 1 -
 drivers/gpu/drm/virtio/virtgpu_vq.c    | 3 +++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virtio/virtgpu_prime.c
index f92133a01195a..4837076308615 100644
--- a/drivers/gpu/drm/virtio/virtgpu_prime.c
+++ b/drivers/gpu/drm/virtio/virtgpu_prime.c
@@ -250,7 +250,6 @@ static int virtgpu_dma_buf_init_obj(struct drm_device *dev,
 	virtio_gpu_cmd_resource_create_blob(vgdev, bo, &params,
 					    ents, nents);
 	bo->guest_blob = true;
-	bo->attached = true;
 
 	dma_buf_unpin(attach);
 	dma_resv_unlock(resv);
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index ad91624df42dd..062639250a4e9 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -1300,6 +1300,9 @@ virtio_gpu_cmd_resource_create_blob(struct virtio_gpu_device *vgdev,
 
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
 	bo->created = true;
+
+	if (nents)
+		bo->attached = true;
 }
 
 void virtio_gpu_cmd_set_scanout_blob(struct virtio_gpu_device *vgdev,
-- 
2.39.5