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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2024 Ventana Micro Systems Inc.
*/
#ifndef __SBI_DOMAIN_DATA_H__
#define __SBI_DOMAIN_DATA_H__
#include <sbi/sbi_types.h>
#include <sbi/sbi_list.h>
struct sbi_domain;
/** Maximum domain data per-domain */
#define SBI_DOMAIN_MAX_DATA_PTRS 32
/** Representation of per-domain data */
struct sbi_domain_data_priv {
/** Array of domain data pointers indexed by domain data identifier */
void *idx_to_data_ptr[SBI_DOMAIN_MAX_DATA_PTRS];
};
/** Representation of a domain data */
struct sbi_domain_data {
/**
* Head is used for maintaining data list
*
* Note: initialized by domain framework
*/
struct sbi_dlist head;
/**
* Identifier which used to locate per-domain data
*
* Note: initialized by domain framework
*/
unsigned long data_idx;
/** Size of per-domain data */
unsigned long data_size;
/** Optional callback to setup domain data */
int (*data_setup)(struct sbi_domain *dom,
struct sbi_domain_data *data, void *data_ptr);
/** Optional callback to cleanup domain data */
void (*data_cleanup)(struct sbi_domain *dom,
struct sbi_domain_data *data, void *data_ptr);
};
/**
* Get per-domain data pointer for a given domain
* @param dom pointer to domain
* @param data pointer to domain data
*
* @return per-domain data pointer
*/
void *sbi_domain_data_ptr(struct sbi_domain *dom, struct sbi_domain_data *data);
/**
* Setup all domain data for a domain
* @param dom pointer to domain
*
* @return 0 on success and negative error code on failure
*
* Note: This function is used internally within domain framework.
*/
int sbi_domain_setup_data(struct sbi_domain *dom);
/**
* Cleanup all domain data for a domain
* @param dom pointer to domain
*
* Note: This function is used internally within domain framework.
*/
void sbi_domain_cleanup_data(struct sbi_domain *dom);
/**
* Register a domain data
* @param hndl pointer to domain data
*
* @return 0 on success and negative error code on failure
*
* Note: This function must be used only in cold boot path.
*/
int sbi_domain_register_data(struct sbi_domain_data *data);
/**
* Unregister a domain data
* @param hndl pointer to domain data
*
* Note: This function must be used only in cold boot path.
*/
void sbi_domain_unregister_data(struct sbi_domain_data *data);
#endif
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