[PATCH v1 03/14] tee: shm: add accessors for buffer size and page offset

From: Volodymyr Babchuk
Date: Thu Sep 28 2017 - 14:05:04 EST


From: Volodymyr Babchuk <vlad.babchuk@xxxxxxxxx>

These two function will be needed for shared memory registration in OP-TEE

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@xxxxxxxxx>
---
include/linux/tee_drv.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)

diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index 49d6361..6ba8b76 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -384,6 +384,26 @@ void *tee_shm_get_va(struct tee_shm *shm, size_t offs);
int tee_shm_get_pa(struct tee_shm *shm, size_t offs, phys_addr_t *pa);

/**
+ * tee_shm_get_size() - Get size of shared memory buffer
+ * @shm: Shared memory handle
+ * @returns size of shared memory
+ */
+static inline size_t tee_shm_get_size(struct tee_shm *shm)
+{
+ return shm->size;
+}
+
+/**
+ * tee_shm_get_page_offset() - Get shared buffer offset from page start
+ * @shm: Shared memory handle
+ * @returns page offset of shared buffer
+ */
+static inline size_t tee_shm_get_page_offset(struct tee_shm *shm)
+{
+ return shm->offset;
+}
+
+/**
* tee_shm_get_id() - Get id of a shared memory object
* @shm: Shared memory handle
* @returns id
--
2.7.4