On Mon, Feb 10, 2020 at 11:08:19AM +0100, Gerd Hoffmann wrote:
> Split virtio_gpu_deinit(), move the drm shutdown and release to
> virtio_gpu_release(). Also free vbufs in case we can't queue them.
>
> Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
> ---
> drivers/gpu/drm/virtio/virtgpu_drv.h | 1 +
> drivers/gpu/drm/virtio/virtgpu_display.c | 1 -
> drivers/gpu/drm/virtio/virtgpu_drv.c | 4 ++++
> drivers/gpu/drm/virtio/virtgpu_kms.c | 5 +++++
> drivers/gpu/drm/virtio/virtgpu_vq.c | 9 ++++++++-
> 5 files changed, 18 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h
> b/drivers/gpu/drm/virtio/virtgpu_drv.h
> index d278c8c50f39..09a485b001e7 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_drv.h
> +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
> @@ -217,6 +217,7 @@ extern struct drm_ioctl_desc
> virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
> /* virtio_kms.c */
> int virtio_gpu_init(struct drm_device *dev);
> void virtio_gpu_deinit(struct drm_device *dev);
> +void virtio_gpu_release(struct drm_device *dev);
> int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);
> void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file
> *file);
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c
> b/drivers/gpu/drm/virtio/virtgpu_display.c
> index 7b0f0643bb2d..af953db4a0c9 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_display.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_display.c
> @@ -368,6 +368,5 @@ void virtio_gpu_modeset_fini(struct virtio_gpu_device
> *vgdev)
>
> for (i = 0 ; i < vgdev->num_scanouts; ++i)
> kfree(vgdev->outputs[i].edid);
> - drm_atomic_helper_shutdown(vgdev->ddev);
> drm_mode_config_cleanup(vgdev->ddev);
> }
> diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c
> b/drivers/gpu/drm/virtio/virtgpu_drv.c
> index 8cf27af3ad53..664a741a3b0b 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_drv.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
> @@ -31,6 +31,7 @@
> #include <linux/pci.h>
>
> #include <drm/drm.h>
> +#include <drm/drm_atomic_helper.h>
> #include <drm/drm_drv.h>
> #include <drm/drm_file.h>
>
> @@ -136,6 +137,7 @@ static void virtio_gpu_remove(struct virtio_device *vdev)
> struct drm_device *dev = vdev->priv;
>
> drm_dev_unregister(dev);
> + drm_atomic_helper_shutdown(dev);
> virtio_gpu_deinit(dev);
> drm_dev_put(dev);
> }
> @@ -214,4 +216,6 @@ static struct drm_driver driver = {
> .major = DRIVER_MAJOR,
> .minor = DRIVER_MINOR,
> .patchlevel = DRIVER_PATCHLEVEL,
> +
> + .release = virtio_gpu_release,
> };
> diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c
> b/drivers/gpu/drm/virtio/virtgpu_kms.c
> index c1086df49816..b45d12e3db2a 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_kms.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
> @@ -240,6 +240,11 @@ void virtio_gpu_deinit(struct drm_device *dev)
> flush_work(&vgdev->config_changed_work);
> vgdev->vdev->config->reset(vgdev->vdev);
> vgdev->vdev->config->del_vqs(vgdev->vdev);
> +}
> +
> +void virtio_gpu_release(struct drm_device *dev)
Split lgtm, but again I think you want drm_dev_enter/exit. And maybe a
changelog.
-Daniel
> +{
> + struct virtio_gpu_device *vgdev = dev->dev_private;
>
> virtio_gpu_modeset_fini(vgdev);
> virtio_gpu_free_vbufs(vgdev);
> diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c
> b/drivers/gpu/drm/virtio/virtgpu_vq.c
> index cc02fc4bab2a..cc674b45f904 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_vq.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
> @@ -330,6 +330,11 @@ static void virtio_gpu_queue_ctrl_sgs(struct
> virtio_gpu_device *vgdev,
> bool notify = false;
> int ret;
>
> + if (!vgdev->vqs_ready) {
> + free_vbuf(vgdev, vbuf);
> + return;
> + }
> +
> if (vgdev->has_indirect)
> elemcnt = 1;
>
> @@ -462,8 +467,10 @@ static void virtio_gpu_queue_cursor(struct
> virtio_gpu_device *vgdev,
> int ret;
> int outcnt;
>
> - if (!vgdev->vqs_ready)
> + if (!vgdev->vqs_ready) {
> + free_vbuf(vgdev, vbuf);
> return;
> + }
>
> sg_init_one(&ccmd, vbuf->buf, vbuf->size);
> sgs[0] = &ccmd;
> --
> 2.18.1
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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