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| author | Gerd Hoffmann <kraxel@redhat.com> | 2020-09-23 17:32:07 -0700 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-09-29 11:23:33 +0200 |
| commit | 16845c5d540929d2f4dc845f11fbbb238e69170a (patch) | |
| tree | 973396e50605edb1f16a176ce4945f06e970e7fc /drivers/gpu/drm/virtio/virtgpu_drv.h | |
| parent | 5c824604e5601a7150e434931243ee9e820fb473 (diff) | |
| download | linux-16845c5d540929d2f4dc845f11fbbb238e69170a.tar.bz2 | |
drm/virtio: implement blob resources: implement vram object
A virtio-gpu vram object is based on range-based allocation.
No guest shmemfs backing, so we call drm_gem_private_object_init.
This is for host memory without any guest backing (atleast initially).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-12-gurchetansingh@chromium.org
Co-developed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_drv.h')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_drv.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index bddf06b8fb68..7c9cf6960a92 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -99,9 +99,19 @@ struct virtio_gpu_object_shmem { uint32_t mapped; }; +struct virtio_gpu_object_vram { + struct virtio_gpu_object base; + uint32_t map_state; + uint32_t map_info; + struct drm_mm_node vram_node; +}; + #define to_virtio_gpu_shmem(virtio_gpu_object) \ container_of((virtio_gpu_object), struct virtio_gpu_object_shmem, base) +#define to_virtio_gpu_vram(virtio_gpu_object) \ + container_of((virtio_gpu_object), struct virtio_gpu_object_vram, base) + struct virtio_gpu_object_array { struct ww_acquire_ctx ticket; struct list_head next; @@ -222,6 +232,7 @@ struct virtio_gpu_device { bool has_resource_blob; bool has_host_visible; struct virtio_shm_region host_visible_region; + struct drm_mm host_visible_mm; struct work_struct config_changed_work; @@ -233,8 +244,10 @@ struct virtio_gpu_device { uint32_t num_capsets; struct list_head cap_cache; - /* protects resource state when exporting */ + /* protects uuid state when exporting */ spinlock_t resource_export_lock; + /* protects map state and host_visible_mm */ + spinlock_t host_visible_lock; }; struct virtio_gpu_fpriv { @@ -365,6 +378,12 @@ int virtio_gpu_cmd_resource_assign_uuid(struct virtio_gpu_device *vgdev, struct virtio_gpu_object_array *objs); +int virtio_gpu_cmd_map(struct virtio_gpu_device *vgdev, + struct virtio_gpu_object_array *objs, uint64_t offset); + +void virtio_gpu_cmd_unmap(struct virtio_gpu_device *vgdev, + struct virtio_gpu_object *bo); + /* virtgpu_display.c */ int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev); void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev); @@ -411,4 +430,9 @@ struct drm_gem_object *virtgpu_gem_prime_import_sg_table( /* virtgpu_debugfs.c */ void virtio_gpu_debugfs_init(struct drm_minor *minor); +/* virtgpu_vram.c */ +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); #endif |