Commit 288f1068 authored by Daniele Ceraolo Spurio's avatar Daniele Ceraolo Spurio Committed by Rodrigo Vivi
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drm/i915/pxp: Define PXP component interface 



This will be used for communication between the i915 driver and the mei
one. Defining it in a stand-alone patch to avoid circualr dependedencies
between the patches modifying the 2 drivers.

Split out from an original patch from  Huang, Sean Z

v2: rename the component struct (Rodrigo)

Signed-off-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210924191452.1539378-2-alan.previn.teres.alexis@intel.com
parent fb2d2de3

include/drm/i915_component.h

+1 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
enum i915_component_type {

	I915_COMPONENT_AUDIO = 1,

	I915_COMPONENT_HDCP,

	I915_COMPONENT_PXP

};



/* MAX_PORT is the number of port

include/drm/i915_pxp_tee_interface.h

0 → 100644
+42 −0
Original line number Diff line number Diff line 
/* 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 i915_pxp_component_ops - ops for PXP services.

 * @owner: Module providing the ops

 * @send: sends data to PXP

 * @receive: receives data from PXP

 */

struct i915_pxp_component_ops {

	/**

	 * @owner: owner of the module provding the ops

	 */

	struct module *owner;



	int (*send)(struct device *dev, const void *message, size_t size);

	int (*recv)(struct device *dev, void *buffer, size_t size);

};



/**

 * struct i915_pxp_component - Used for communication between i915 and TEE

 * drivers for the PXP services

 * @tee_dev: device that provide the PXP service from TEE Bus.

 * @pxp_ops: Ops implemented by TEE driver, used by i915 driver.

 */

struct i915_pxp_component {

	struct device *tee_dev;

	const struct i915_pxp_component_ops *ops;



	/* To protect the above members. */

	struct mutex mutex;

};



#endif /* _I915_TEE_PXP_INTERFACE_H_ */