/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2020 Intel Corporation
*/
#ifndef _I915_PXP_TEE_INTERFACE_H_
#define _I915_PXP_TEE_INTERFACE_H_
#include <linux/mutex.h>
#include <linux/device.h>
struct scatterlist;
/**
* struct i915_pxp_component_ops - ops for PXP services .
*/
struct i915_pxp_component_ops {
/**
* @ owner : Module providing the ops .
*/
struct module *owner;
/**
* @ send : Send a PXP message .
*/
int (*send)(struct device *dev, const void *message, size_t size,
unsigned long timeout_ms);
/**
* @ recv : Receive a PXP message .
*/
int (*recv)(struct device *dev, void *buffer, size_t size,
unsigned long timeout_ms);
/**
* @ gsc_command : Send a GSC command .
*/
ssize_t (*gsc_command)(struct device *dev, u8 client_id, u32 fence_id,
struct scatterlist *sg_in, size_t total_in_len,
struct scatterlist *sg_out);
};
/**
* struct i915_pxp_component - Used for communication between i915 and TEE
* drivers for the PXP services
*/
struct i915_pxp_component {
/**
* @ tee_dev : device that provide the PXP service from TEE Bus .
*/
struct device *tee_dev;
/**
* @ ops : Ops implemented by TEE driver , used by i915 driver .
*/
const struct i915_pxp_component_ops *ops;
/**
* @ mutex : To protect the above members .
*/
struct mutex mutex;
};
#endif /* _I915_TEE_PXP_INTERFACE_H_ */
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(vorverarbeitet am 2026-09-27)
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