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Commit e0c69ae8 authored by Volodymyr Babchuk's avatar Volodymyr Babchuk Committed by Jens Wiklander
Browse files

tee: shm: add page accessor functions 



In order to register a shared buffer in TEE, we need accessor
function that return list of pages for that buffer.

Signed-off-by: default avatarVolodymyr Babchuk <vlad.babchuk@gmail.com>
Signed-off-by: default avatarJens Wiklander <jens.wiklander@linaro.org>
parent b25946ad

include/linux/tee_drv.h

+13 −0
Original line number Diff line number Diff line
@@ -403,6 +403,19 @@ static inline size_t tee_shm_get_size(struct tee_shm *shm) 
	return shm->size;

}



/**

 * tee_shm_get_pages() - Get list of pages that hold shared buffer

 * @shm:	Shared memory handle

 * @num_pages:	Number of pages will be stored there

 * @returns pointer to pages array

 */

static inline struct page **tee_shm_get_pages(struct tee_shm *shm,

					      size_t *num_pages)

{

	*num_pages = shm->num_pages;

	return shm->pages;

}



/**

 * tee_shm_get_page_offset() - Get shared buffer offset from page start

 * @shm:	Shared memory handle