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SubjectRe: [PATCH v2 2/2] virtio: virtio_has_iommu_quirk -> virtio_has_dma_quirk
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On 2020/6/25 上午7:21, Michael S. Tsirkin wrote:
> Now that the corresponding feature bit has been renamed,
> rename the quirk too - it's about special ways to
> do DMA, not necessarily about the IOMMU.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
> drivers/gpu/drm/virtio/virtgpu_object.c | 2 +-
> drivers/gpu/drm/virtio/virtgpu_vq.c | 4 ++--
> drivers/virtio/virtio_ring.c | 2 +-
> include/linux/virtio_config.h | 4 ++--
> tools/virtio/linux/virtio_config.h | 4 ++--
> 5 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
> index 6ccbd01cd888..e8799ab0c753 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_object.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_object.c
> @@ -141,7 +141,7 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev,
> struct virtio_gpu_mem_entry **ents,
> unsigned int *nents)
> {
> - bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
> + bool use_dma_api = !virtio_has_dma_quirk(vgdev->vdev);
> struct virtio_gpu_object_shmem *shmem = to_virtio_gpu_shmem(bo);
> struct scatterlist *sg;
> int si, ret;
> diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
> index 9e663a5d9952..53af60d484a4 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_vq.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
> @@ -599,7 +599,7 @@ void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
> struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(objs->objs[0]);
> struct virtio_gpu_transfer_to_host_2d *cmd_p;
> struct virtio_gpu_vbuffer *vbuf;
> - bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
> + bool use_dma_api = !virtio_has_dma_quirk(vgdev->vdev);
> struct virtio_gpu_object_shmem *shmem = to_virtio_gpu_shmem(bo);
>
> if (use_dma_api)
> @@ -1015,7 +1015,7 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
> struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(objs->objs[0]);
> struct virtio_gpu_transfer_host_3d *cmd_p;
> struct virtio_gpu_vbuffer *vbuf;
> - bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
> + bool use_dma_api = !virtio_has_dma_quirk(vgdev->vdev);
> struct virtio_gpu_object_shmem *shmem = to_virtio_gpu_shmem(bo);
>
> if (use_dma_api)
> diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
> index a1a5c2a91426..34253cb69cb8 100644
> --- a/drivers/virtio/virtio_ring.c
> +++ b/drivers/virtio/virtio_ring.c
> @@ -240,7 +240,7 @@ static inline bool virtqueue_use_indirect(struct virtqueue *_vq,
>
> static bool vring_use_dma_api(struct virtio_device *vdev)
> {
> - if (!virtio_has_iommu_quirk(vdev))
> + if (!virtio_has_dma_quirk(vdev))
> return true;
>
> /* Otherwise, we are left to guess. */
> diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
> index f2cc2a0df174..3b4eae5ac5e3 100644
> --- a/include/linux/virtio_config.h
> +++ b/include/linux/virtio_config.h
> @@ -162,10 +162,10 @@ static inline bool virtio_has_feature(const struct virtio_device *vdev,
> }
>
> /**
> - * virtio_has_iommu_quirk - determine whether this device has the iommu quirk
> + * virtio_has_dma_quirk - determine whether this device has the DMA quirk
> * @vdev: the device
> */
> -static inline bool virtio_has_iommu_quirk(const struct virtio_device *vdev)
> +static inline bool virtio_has_dma_quirk(const struct virtio_device *vdev)
> {
> /*
> * Note the reverse polarity of the quirk feature (compared to most
> diff --git a/tools/virtio/linux/virtio_config.h b/tools/virtio/linux/virtio_config.h
> index f99ae42668e0..f2640e505c4e 100644
> --- a/tools/virtio/linux/virtio_config.h
> +++ b/tools/virtio/linux/virtio_config.h
> @@ -42,10 +42,10 @@ static inline void __virtio_clear_bit(struct virtio_device *vdev,
> (__virtio_test_bit((dev), feature))
>
> /**
> - * virtio_has_iommu_quirk - determine whether this device has the iommu quirk
> + * virtio_has_dma_quirk - determine whether this device has the DMA quirk
> * @vdev: the device
> */
> -static inline bool virtio_has_iommu_quirk(const struct virtio_device *vdev)
> +static inline bool virtio_has_dma_quirk(const struct virtio_device *vdev)
> {
> /*
> * Note the reverse polarity of the quirk feature (compared to most


Acked-by: Jason Wang <jasowang@redhat.com>


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