drivers/tee/tee_shm.c

117  * tee_shm_alloc_user_buf() - Allocate shared memory for user space
118  * @ctx:	Context that allocates the shared memory
119  * @size:	Requested size of shared memory
121  * Memory allocated as user space shared memory is automatically freed when
162  * tee_shm_alloc_kernel_buf() - Allocate shared memory for kernel buffer
163  * @ctx:	Context that allocates the shared memory
164  * @size:	Requested size of shared memory
182  * tee_shm_alloc_priv_buf() - Allocate shared memory for a privately shared
184  * @ctx:	Context that allocates the shared memory
185  * @size:	Requested size of shared memory
187  * This function returns similar shared memory as
295  * tee_shm_register_user_buf() - Register a userspace shared memory buffer
296  * @ctx:	Context that registers the shared memory
297  * @addr:	The userspace address of the shared buffer
298  * @length:	Length of the shared buffer
342  * tee_shm_register_kernel_buf() - Register kernel memory to be shared with
344  * @ctx:	Context that registers the shared memory
377 	/* Refuse sharing shared memory provided by application */  in tee_shm_fop_mmap()
397  * @shm:	Shared memory handle
398  * @returns user space file descriptor to shared memory
416  * tee_shm_free() - Free shared memory
417  * @shm:	Handle to shared memory to free
426  * tee_shm_get_va() - Get virtual address of a shared memory plus an offset
427  * @shm:	Shared memory handle
428  * @offs:	Offset from start of this shared memory
429  * @returns virtual address of the shared memory + offs if offs is within
430  *	the bounds of this shared memory, else an ERR_PTR
443  * tee_shm_get_pa() - Get physical address of a shared memory plus an offset
444  * @shm:	Shared memory handle
445  * @offs:	Offset from start of this shared memory
447  * @returns 0 if offs is within the bounds of this shared memory, else an
461  * tee_shm_get_from_id() - Find shared memory object and increase reference
463  * @ctx:	Context owning the shared memory
464  * @id:		Id of shared memory object
493  * tee_shm_put() - Decrease reference count on a shared memory handle
494  * @shm:	Shared memory handle