[PATCH v1 03/14] tee: shm: add accessors for buffer size and page offset
Volodymyr Babchuk
volodymyr_babchuk at epam.com
Thu Sep 28 11:04:00 PDT 2017
From: Volodymyr Babchuk <vlad.babchuk at gmail.com>
These two function will be needed for shared memory registration in OP-TEE
Signed-off-by: Volodymyr Babchuk <vlad.babchuk at gmail.com>
---
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
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