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>
11struct scatterlist;
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 */
19struct 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);
 
 
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
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 */
39struct 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_ */

 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>
11struct scatterlist;
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 */
19struct 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		    unsigned long timeout_ms);
27	int (*recv)(struct device *dev, void *buffer, size_t size,
28		    unsigned long timeout_ms);
29	ssize_t (*gsc_command)(struct device *dev, u8 client_id, u32 fence_id,
30			       struct scatterlist *sg_in, size_t total_in_len,
31			       struct scatterlist *sg_out);
32
33};
34
35/**
36 * struct i915_pxp_component - Used for communication between i915 and TEE
37 * drivers for the PXP services
38 * @tee_dev: device that provide the PXP service from TEE Bus.
39 * @pxp_ops: Ops implemented by TEE driver, used by i915 driver.
40 */
41struct i915_pxp_component {
42	struct device *tee_dev;
43	const struct i915_pxp_component_ops *ops;
44
45	/* To protect the above members. */
46	struct mutex mutex;
47};
48
49#endif /* _I915_TEE_PXP_INTERFACE_H_ */