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Subject[PATCH v3 1/2] drm/virtio: Rewrite virtio_gpu_queue_ctrl_buffer using fenced version.
Date
Factor function in preparation to generating scatterlist prior to locking.

Signed-off-by: David Riley <davidriley@chromium.org>
---
drivers/gpu/drm/virtio/virtgpu_vq.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 981ee16e3ee9..bf5a4a50b002 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -299,17 +299,6 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
return ret;
}

-static int virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_vbuffer *vbuf)
-{
- int rc;
-
- spin_lock(&vgdev->ctrlq.qlock);
- rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf);
- spin_unlock(&vgdev->ctrlq.qlock);
- return rc;
-}
-
static int virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
struct virtio_gpu_vbuffer *vbuf,
struct virtio_gpu_ctrl_hdr *hdr,
@@ -335,13 +324,19 @@ static int virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
goto again;
}

- if (fence)
+ if (hdr && fence)
virtio_gpu_fence_emit(vgdev, hdr, fence);
rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf);
spin_unlock(&vgdev->ctrlq.qlock);
return rc;
}

+static int virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer *vbuf)
+{
+ return virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, NULL, NULL);
+}
+
static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
struct virtio_gpu_vbuffer *vbuf)
{
--
2.23.0.162.g0b9fbb3734-goog
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