drivers/gpu/drm/imagination/pvr_sync.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/imagination/pvr_sync.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/imagination/pvr_sync.h
Extension
.h
Size
2166 bytes
Lines
85
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct pvr_sync_signal {
	/** @handle: Handle of the syncobj to signal. */
	u32 handle;

	/**
	 * @point: Point to signal in the syncobj.
	 *
	 * Only relevant for timeline syncobjs.
	 */
	u64 point;

	/** @syncobj: Syncobj retrieved from the handle. */
	struct drm_syncobj *syncobj;

	/**
	 * @chain: Chain object used to link the new fence with the
	 *	   existing timeline syncobj.
	 *
	 * Should be zero when manipulating a regular syncobj.
	 */
	struct dma_fence_chain *chain;

	/**
	 * @fence: New fence object to attach to the syncobj.
	 *
	 * This pointer starts with the current fence bound to
	 * the <handle,point> pair.
	 */
	struct dma_fence *fence;
};

void
pvr_sync_signal_array_cleanup(struct xarray *array);

int
pvr_sync_signal_array_collect_ops(struct xarray *array,
				  struct drm_file *file,
				  u32 sync_op_count,
				  const struct drm_pvr_sync_op *sync_ops);

int
pvr_sync_signal_array_update_fences(struct xarray *array,
				    u32 sync_op_count,
				    const struct drm_pvr_sync_op *sync_ops,
				    struct dma_fence *finished_fence);

void
pvr_sync_signal_array_push_fences(struct xarray *array);

int
pvr_sync_add_deps_to_job(struct pvr_file *pvr_file, struct drm_sched_job *job,
			 u32 sync_op_count,
			 const struct drm_pvr_sync_op *sync_ops,
			 struct xarray *signal_array);

#endif /* PVR_SYNC_H */

Annotation

Implementation Notes