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authorJens Wiklander <jens.wiklander@linaro.org>2017-11-29 14:48:25 +0200
committerJens Wiklander <jens.wiklander@linaro.org>2017-12-15 12:37:29 +0100
commite2aca5d8928acb9cc9a87802b02102d4f9b9b596 (patch)
treee3060d2d74eb3148374b68271cda4d76635f438e /drivers/tee/tee_private.h
parent50c4c4e268a2d7a3e58ebb698ac74da0de40ae36 (diff)
tee: flexible shared memory pool creation
Makes creation of shm pools more flexible by adding new more primitive functions to allocate a shm pool. This makes it easier to add driver specific shm pool management. Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Diffstat (limited to 'drivers/tee/tee_private.h')
-rw-r--r--drivers/tee/tee_private.h57
1 files changed, 2 insertions, 55 deletions
diff --git a/drivers/tee/tee_private.h b/drivers/tee/tee_private.h
index 21cb6be8bce9..2bc2b5ab1661 100644
--- a/drivers/tee/tee_private.h
+++ b/drivers/tee/tee_private.h
@@ -21,68 +21,15 @@
#include <linux/mutex.h>
#include <linux/types.h>
-struct tee_device;
-
-/**
- * struct tee_shm - shared memory object
- * @teedev: device used to allocate the object
- * @ctx: context using the object, if NULL the context is gone
- * @link link element
- * @paddr: physical address of the shared memory
- * @kaddr: virtual address of the shared memory
- * @size: size of shared memory
- * @dmabuf: dmabuf used to for exporting to user space
- * @flags: defined by TEE_SHM_* in tee_drv.h
- * @id: unique id of a shared memory object on this device
- */
-struct tee_shm {
- struct tee_device *teedev;
- struct tee_context *ctx;
- struct list_head link;
- phys_addr_t paddr;
- void *kaddr;
- size_t size;
- struct dma_buf *dmabuf;
- u32 flags;
- int id;
-};
-
-struct tee_shm_pool_mgr;
-
-/**
- * struct tee_shm_pool_mgr_ops - shared memory pool manager operations
- * @alloc: called when allocating shared memory
- * @free: called when freeing shared memory
- */
-struct tee_shm_pool_mgr_ops {
- int (*alloc)(struct tee_shm_pool_mgr *poolmgr, struct tee_shm *shm,
- size_t size);
- void (*free)(struct tee_shm_pool_mgr *poolmgr, struct tee_shm *shm);
-};
-
-/**
- * struct tee_shm_pool_mgr - shared memory manager
- * @ops: operations
- * @private_data: private data for the shared memory manager
- */
-struct tee_shm_pool_mgr {
- const struct tee_shm_pool_mgr_ops *ops;
- void *private_data;
-};
-
/**
* struct tee_shm_pool - shared memory pool
* @private_mgr: pool manager for shared memory only between kernel
* and secure world
* @dma_buf_mgr: pool manager for shared memory exported to user space
- * @destroy: called when destroying the pool
- * @private_data: private data for the pool
*/
struct tee_shm_pool {
- struct tee_shm_pool_mgr private_mgr;
- struct tee_shm_pool_mgr dma_buf_mgr;
- void (*destroy)(struct tee_shm_pool *pool);
- void *private_data;
+ struct tee_shm_pool_mgr *private_mgr;
+ struct tee_shm_pool_mgr *dma_buf_mgr;
};
#define TEE_DEVICE_FLAG_REGISTERED 0x1

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