diff options
| author | David Stevens <stevensd@chromium.org> | 2021-08-13 02:54:41 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2021-08-16 14:09:40 +0200 |
| commit | ea5ea3d8a117517a75c2af30faa399671444a1ea (patch) | |
| tree | 1bbca8681e58404ba3f066e8d3218d2b42699b48 /drivers/gpu/drm/virtio/virtgpu_drv.h | |
| parent | dma-buf: WARN on dmabuf release with pending attachments (diff) | |
| download | linux-ea5ea3d8a117517a75c2af30faa399671444a1ea.tar.xz linux-ea5ea3d8a117517a75c2af30faa399671444a1ea.zip | |
drm/virtio: support mapping exported vram
Implement virtgpu specific map_dma_buf callback to support mapping
exported vram object dma-bufs. The dma-buf callback is used directly, as
vram objects don't have backing pages and thus can't implement the
drm_gem_object_funcs.get_sg_table callback.
Signed-off-by: David Stevens <stevensd@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20210813005441.608293-1-stevensd@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_drv.h')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_drv.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index d4e610a44e12..0c4810982530 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -26,6 +26,7 @@ #ifndef VIRTIO_DRV_H #define VIRTIO_DRV_H +#include <linux/dma-direction.h> #include <linux/virtio.h> #include <linux/virtio_ids.h> #include <linux/virtio_config.h> @@ -459,4 +460,11 @@ bool virtio_gpu_is_vram(struct virtio_gpu_object *bo); int virtio_gpu_vram_create(struct virtio_gpu_device *vgdev, struct virtio_gpu_object_params *params, struct virtio_gpu_object **bo_ptr); +struct sg_table *virtio_gpu_vram_map_dma_buf(struct virtio_gpu_object *bo, + struct device *dev, + enum dma_data_direction dir); +void virtio_gpu_vram_unmap_dma_buf(struct device *dev, + struct sg_table *sgt, + enum dma_data_direction dir); + #endif |