cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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i915_pxp_tee_interface.h (1060B)

      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>
     11
     12/**
     13 * struct i915_pxp_component_ops - ops for PXP services.
     14 * @owner: Module providing the ops
     15 * @send: sends data to PXP
     16 * @receive: receives data from PXP
     17 */
     18struct i915_pxp_component_ops {
     19	/**
     20	 * @owner: owner of the module provding the ops
     21	 */
     22	struct module *owner;
     23
     24	int (*send)(struct device *dev, const void *message, size_t size);
     25	int (*recv)(struct device *dev, void *buffer, size_t size);
     26};
     27
     28/**
     29 * struct i915_pxp_component - Used for communication between i915 and TEE
     30 * drivers for the PXP services
     31 * @tee_dev: device that provide the PXP service from TEE Bus.
     32 * @pxp_ops: Ops implemented by TEE driver, used by i915 driver.
     33 */
     34struct i915_pxp_component {
     35	struct device *tee_dev;
     36	const struct i915_pxp_component_ops *ops;
     37
     38	/* To protect the above members. */
     39	struct mutex mutex;
     40};
     41
     42#endif /* _I915_TEE_PXP_INTERFACE_H_ */