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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#ifndef _XE_GSC_TYPES_H_
#define _XE_GSC_TYPES_H_
#include <linux/iosys-map.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/workqueue.h>
#include "xe_uc_fw_types.h"
struct xe_bo;
struct xe_exec_queue;
struct i915_gsc_proxy_component;
/**
* struct xe_gsc - GSC
*/
struct xe_gsc {
/** @fw: Generic uC firmware management */
struct xe_uc_fw fw;
/** @security_version: SVN found in the fetched blob */
u32 security_version;
/** @private: Private data for use by the GSC FW */
struct xe_bo *private;
/** @q: Default queue used for submissions to GSC FW */
struct xe_exec_queue *q;
/** @wq: workqueue to handle jobs for delayed load and proxy handling */
struct workqueue_struct *wq;
/** @work: delayed load and proxy handling work */
struct work_struct work;
/** @lock: protects access to the work_actions mask */
spinlock_t lock;
/** @work_actions: mask of actions to be performed in the work */
u32 work_actions;
#define GSC_ACTION_FW_LOAD BIT(0)
#define GSC_ACTION_SW_PROXY BIT(1)
/** @proxy: sub-structure containing the SW proxy-related variables */
struct {
/** @proxy.component: struct for communication with mei component */
struct i915_gsc_proxy_component *component;
/** @proxy.mutex: protects the component binding and usage */
struct mutex mutex;
/** @proxy.component_added: whether the component has been added */
bool component_added;
/** @proxy.bo: object to store message to and from the GSC */
struct xe_bo *bo;
/** @proxy.to_gsc: map of the memory used to send messages to the GSC */
struct iosys_map to_gsc;
/** @proxy.from_gsc: map of the memory used to recv messages from the GSC */
struct iosys_map from_gsc;
/** @proxy.to_csme: pointer to the memory used to send messages to CSME */
void *to_csme;
/** @proxy.from_csme: pointer to the memory used to recv messages from CSME */
void *from_csme;
} proxy;
};
#endif
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