1 files changed, 12 insertions, 41 deletions

diff --git a/drivers/tee/tee_private.h b/drivers/tee/tee_private.h
index 409cadcc1cff..6bde688bfcb1 100644
--- a/drivers/tee/tee_private.h
+++ b/drivers/tee/tee_private.h
@@ -8,57 +8,28 @@
 #include <linux/cdev.h>
 #include <linux/completion.h>
 #include <linux/device.h>
+#include <linux/dma-buf.h>
 #include <linux/kref.h>
 #include <linux/mutex.h>
 #include <linux/types.h>
 
-#define TEE_DEVICE_FLAG_REGISTERED	0x1
-#define TEE_MAX_DEV_NAME_LEN		32
-
-/**
- * struct tee_device - TEE Device representation
- * @name:	name of device
- * @desc:	description of device
- * @id:		unique id of device
- * @flags:	represented by TEE_DEVICE_FLAG_REGISTERED above
- * @dev:	embedded basic device structure
- * @cdev:	embedded cdev
- * @num_users:	number of active users of this device
- * @c_no_user:	completion used when unregistering the device
- * @mutex:	mutex protecting @num_users and @idr
- * @idr:	register of user space shared memory objects allocated or
- *		registered on this device
- * @pool:	shared memory pool
- */
-struct tee_device {
-	char name[TEE_MAX_DEV_NAME_LEN];
-	const struct tee_desc *desc;
-	int id;
-	unsigned int flags;
-
-	struct device dev;
-	struct cdev cdev;
-
-	size_t num_users;
-	struct completion c_no_users;
-	struct mutex mutex;	/* protects num_users and idr */
-
-	struct idr idr;
-	struct tee_shm_pool *pool;
+/* extra references appended to shm object for registered shared memory */
+struct tee_shm_dmabuf_ref {
+	struct tee_shm shm;
+	size_t offset;
+	struct dma_buf *dmabuf;
+	struct tee_shm *parent_shm;
 };
 
-int tee_shm_init(void);
-
 int tee_shm_get_fd(struct tee_shm *shm);
 
-bool tee_device_get(struct tee_device *teedev);
-void tee_device_put(struct tee_device *teedev);
-
-void teedev_ctx_get(struct tee_context *ctx);
-void teedev_ctx_put(struct tee_context *ctx);
-
 struct tee_shm *tee_shm_alloc_user_buf(struct tee_context *ctx, size_t size);
 struct tee_shm *tee_shm_register_user_buf(struct tee_context *ctx,
 					  unsigned long addr, size_t length);
 
+int tee_heap_update_from_dma_buf(struct tee_device *teedev,
+				 struct dma_buf *dmabuf, size_t *offset,
+				 struct tee_shm *shm,
+				 struct tee_shm **parent_shm);
+
 #endif /*TEE_PRIVATE_H*/