This allows downstream consumers to keep track of private data for shmem
mappings. In particular, the Rust abstraction will use this to safely
drop data associated with a mapping when it is unmapped.
Signed-off-by: Asahi Lina <lina@asahilina.net>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
* @size: Size of the shared memory buffer.
* @iova: Device VA of shared memory buffer.
* @is_mapped: Shared memory buffer is managed by the co-processor.
+ * @private: Private data pointer for the parent driver.
*/
struct apple_rtkit_shmem {
size_t size;
dma_addr_t iova;
bool is_mapped;
+ void *private;
};
/*