OPTEE_MSG_NONCONTIG_PAGE_SIZE
((OPTEE_MSG_NONCONTIG_PAGE_SIZE / sizeof(u64)) - 1)
return pages * OPTEE_MSG_NONCONTIG_PAGE_SIZE;
BUILD_BUG_ON(PAGE_SIZE < OPTEE_MSG_NONCONTIG_PAGE_SIZE);
round_down(page_offset, OPTEE_MSG_NONCONTIG_PAGE_SIZE);
optee_page += OPTEE_MSG_NONCONTIG_PAGE_SIZE;
(tee_shm_get_page_offset(shm) & (OPTEE_MSG_NONCONTIG_PAGE_SIZE - 1));
(OPTEE_MSG_NONCONTIG_PAGE_SIZE - 1));