| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
|---|---|
| 2 | /* |
| 3 | * Copyright (c) 2015-2016, Linaro Limited |
| 4 | */ |
| 5 | #ifndef TEE_PRIVATE_H |
| 6 | #define TEE_PRIVATE_H |
| 7 | |
| 8 | #include <linux/cdev.h> |
| 9 | #include <linux/completion.h> |
| 10 | #include <linux/device.h> |
| 11 | #include <linux/dma-buf.h> |
| 12 | #include <linux/kref.h> |
| 13 | #include <linux/mutex.h> |
| 14 | #include <linux/types.h> |
| 15 | |
| 16 | /* extra references appended to shm object for registered shared memory */ |
| 17 | struct tee_shm_dmabuf_ref { |
| 18 | struct tee_shm shm; |
| 19 | size_t offset; |
| 20 | struct dma_buf *dmabuf; |
| 21 | struct tee_shm *parent_shm; |
| 22 | }; |
| 23 | |
| 24 | int tee_shm_get_fd(struct tee_shm *shm); |
| 25 | |
| 26 | struct tee_shm *tee_shm_alloc_user_buf(struct tee_context *ctx, size_t size); |
| 27 | struct tee_shm *tee_shm_register_user_buf(struct tee_context *ctx, |
| 28 | unsigned long addr, size_t length); |
| 29 | |
| 30 | int tee_heap_update_from_dma_buf(struct tee_device *teedev, |
| 31 | struct dma_buf *dmabuf, size_t *offset, |
| 32 | struct tee_shm *shm, |
| 33 | struct tee_shm **parent_shm); |
| 34 | |
| 35 | #endif /*TEE_PRIVATE_H*/ |
| 36 |