diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-07 10:46:37 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-10 14:54:33 +0300 |
| commit | 2fe4ca9d0e4d62bba4d263e35db356ae74024979 (patch) | |
| tree | 10cfd4b4500b2081a3d951e82cfbef484ebb1c51 /drivers/gpu/drm/virtio/virtgpu_vq.c | |
| parent | 1ed5f698adad450b314a36aa48ff9593bdfcd968 (diff) | |
| download | linux-2fe4ca9d0e4d62bba4d263e35db356ae74024979.tar.xz | |
drm/virtio: move mapping teardown to virtio_gpu_cleanup_object()
Stop sending DETACH_BACKING commands, that will happening anyway when
releasing resources via UNREF. Handle guest-side cleanup in
virtio_gpu_cleanup_object(), called when the host finished processing
the UNREF command.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200207074638.26386-4-kraxel@redhat.com
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_vq.c')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_vq.c | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 755a3e26ef01..ae0b0a9ac3b5 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -548,22 +548,6 @@ void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev, virtio_gpu_queue_ctrl_buffer(vgdev, vbuf); } -static void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev, - uint32_t resource_id, - struct virtio_gpu_fence *fence) -{ - struct virtio_gpu_resource_detach_backing *cmd_p; - struct virtio_gpu_vbuffer *vbuf; - - cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); - memset(cmd_p, 0, sizeof(*cmd_p)); - - cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING); - cmd_p->resource_id = cpu_to_le32(resource_id); - - virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence); -} - void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev, uint32_t scanout_id, uint32_t resource_id, uint32_t width, uint32_t height, @@ -1158,36 +1142,6 @@ int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev, return 0; } -void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev, - struct virtio_gpu_object *obj) -{ - bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev); - - if (WARN_ON_ONCE(!obj->pages)) - return; - - if (use_dma_api && obj->mapped) { - struct virtio_gpu_fence *fence = virtio_gpu_fence_alloc(vgdev); - /* detach backing and wait for the host process it ... */ - virtio_gpu_cmd_resource_inval_backing(vgdev, obj->hw_res_handle, fence); - dma_fence_wait(&fence->f, true); - dma_fence_put(&fence->f); - - /* ... then tear down iommu mappings */ - dma_unmap_sg(vgdev->vdev->dev.parent, - obj->pages->sgl, obj->mapped, - DMA_TO_DEVICE); - obj->mapped = 0; - } else { - virtio_gpu_cmd_resource_inval_backing(vgdev, obj->hw_res_handle, NULL); - } - - sg_free_table(obj->pages); - obj->pages = NULL; - - drm_gem_shmem_unpin(&obj->base.base); -} - void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev, struct virtio_gpu_output *output) { |