projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 288f1068 DCS |
1 | /* SPDX-License-Identifier: MIT */ |
| 2 | /* | |
| 3 | * Copyright © 2020 Intel Corporation | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef _I915_PXP_TEE_INTERFACE_H_ | |
| 7 | #define _I915_PXP_TEE_INTERFACE_H_ | |
| 8 | ||
| 9 | #include <linux/mutex.h> | |
| 10 | #include <linux/device.h> | |
| c7289125 | 11 | struct scatterlist; |
| 288f1068 DCS |
12 | |
| 13 | /** | |
| 14 | * struct i915_pxp_component_ops - ops for PXP services. | |
| 15 | * @owner: Module providing the ops | |
| 16 | * @send: sends data to PXP | |
| 17 | * @receive: receives data from PXP | |
| 18 | */ | |
| 19 | struct i915_pxp_component_ops { | |
| 20 | /** | |
| 21 | * @owner: owner of the module provding the ops | |
| 22 | */ | |
| 23 | struct module *owner; | |
| 24 | ||
| 25 | int (*send)(struct device *dev, const void *message, size_t size); | |
| 26 | int (*recv)(struct device *dev, void *buffer, size_t size); | |
| c7289125 VL |
27 | ssize_t (*gsc_command)(struct device *dev, u8 client_id, u32 fence_id, |
| 28 | struct scatterlist *sg_in, size_t total_in_len, | |
| 29 | struct scatterlist *sg_out); | |
| 30 | ||
| 288f1068 DCS |
31 | }; |
| 32 | ||
| 33 | /** | |
| 34 | * struct i915_pxp_component - Used for communication between i915 and TEE | |
| 35 | * drivers for the PXP services | |
| 36 | * @tee_dev: device that provide the PXP service from TEE Bus. | |
| 37 | * @pxp_ops: Ops implemented by TEE driver, used by i915 driver. | |
| 38 | */ | |
| 39 | struct i915_pxp_component { | |
| 40 | struct device *tee_dev; | |
| 41 | const struct i915_pxp_component_ops *ops; | |
| 42 | ||
| 43 | /* To protect the above members. */ | |
| 44 | struct mutex mutex; | |
| 45 | }; | |
| 46 | ||
| 47 | #endif /* _I915_TEE_PXP_INTERFACE_H_ */ |