drivers/gpu/drm/xe/xe_guc_types.h

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2022 Intel Corporation
 */

#ifndef _XE_GUC_TYPES_H_
#define _XE_GUC_TYPES_H_

#include <linux/idr.h>
#include <linux/xarray.h>

#include "regs/xe_reg_defs.h"
#include "xe_guc_ads_types.h"
#include "xe_guc_ct_types.h"
#include "xe_guc_fwif.h"
#include "xe_guc_log_types.h"
#include "xe_guc_pc_types.h"
#include "xe_guc_relay_types.h"
#include "xe_uc_fw_types.h"

/**
 * struct xe_guc_db_mgr - GuC Doorbells Manager.
 *
 * Note: GuC Doorbells Manager is relying on &xe_guc::submission_state.lock
 * to protect its members.
 */
struct xe_guc_db_mgr {
	/** @count: number of doorbells to manage */
	unsigned int count;
	/** @bitmap: bitmap to track allocated doorbells */
	unsigned long *bitmap;
};

/**
 * struct xe_guc - Graphic micro controller
 */
struct xe_guc {
	/** @fw: Generic uC firmware management */
	struct xe_uc_fw fw;
	/** @log: GuC log */
	struct xe_guc_log log;
	/** @ads: GuC ads */
	struct xe_guc_ads ads;
	/** @ct: GuC ct */
	struct xe_guc_ct ct;
	/** @pc: GuC Power Conservation */
	struct xe_guc_pc pc;
	/** @dbm: GuC Doorbell Manager */
	struct xe_guc_db_mgr dbm;
	/** @submission_state: GuC submission state */
	struct {
		/** @submission_state.exec_queue_lookup: Lookup an xe_engine from guc_id */
		struct xarray exec_queue_lookup;
		/** @submission_state.guc_ids: used to allocate new guc_ids, single-lrc */
		struct ida guc_ids;
		/** @submission_state.guc_ids_bitmap: used to allocate new guc_ids, multi-lrc */
		unsigned long *guc_ids_bitmap;
		/** @submission_state.stopped: submissions are stopped */
		atomic_t stopped;
		/** @submission_state.lock: protects submission state */
		struct mutex lock;
		/** @submission_state.suspend: suspend fence state */
		struct {
			/** @submission_state.suspend.lock: suspend fences lock */
			spinlock_t lock;
			/** @submission_state.suspend.context: suspend fences context */
			u64 context;
			/** @submission_state.suspend.seqno: suspend fences seqno */
			u32 seqno;
		} suspend;
#ifdef CONFIG_PROVE_LOCKING
#define NUM_SUBMIT_WQ	256
		/** @submission_state.submit_wq_pool: submission ordered workqueues pool */
		struct workqueue_struct *submit_wq_pool[NUM_SUBMIT_WQ];
		/** @submission_state.submit_wq_idx: submission ordered workqueue index */
		int submit_wq_idx;
#endif
		/** @submission_state.enabled: submission is enabled */
		bool enabled;
	} submission_state;
	/** @hwconfig: Hardware config state */
	struct {
		/** @hwconfig.bo: buffer object of the hardware config */
		struct xe_bo *bo;
		/** @hwconfig.size: size of the hardware config */
		u32 size;
	} hwconfig;

	/** @relay: GuC Relay Communication used in SR-IOV */
	struct xe_guc_relay relay;

	/**
	 * @notify_reg: Register which is written to notify GuC of H2G messages
	 */
	struct xe_reg notify_reg;
	/** @params: Control params for fw initialization */
	u32 params[GUC_CTL_MAX_DWORDS];
};

#endif