/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2015, Intel Corporation
 * Author: Jiang Liu <jiang.liu@linux.intel.com>
 */
#ifndef _LINUX_RESOURCE_EXT_H
#define _LINUX_RESOURCE_EXT_H
#include <linux/types.h>
#include <linux/list.h>
#include <linux/ioport.h>
#include <linux/slab.h>

/* Represent resource window for bridge devices */
struct resource_win {
        struct resource res;            /* In master (CPU) address space */
        resource_size_t offset;         /* Translation offset for bridge */
};

/*
 * Common resource list management data structure and interfaces to support
 * ACPI, PNP and PCI host bridge etc.
 */
struct resource_entry {
        struct list_head        node;
        struct resource         *res;   /* In master (CPU) address space */
        resource_size_t         offset; /* Translation offset for bridge */
        struct resource         __res;  /* Default storage for res */
};

extern struct resource_entry *
resource_list_create_entry(struct resource *res, size_t extra_size);
extern void resource_list_free(struct list_head *head);

static inline void resource_list_add(struct resource_entry *entry,
                                     struct list_head *head)
{
        list_add(&entry->node, head);
}

static inline void resource_list_add_tail(struct resource_entry *entry,
                                          struct list_head *head)
{
        list_add_tail(&entry->node, head);
}

static inline void resource_list_del(struct resource_entry *entry)
{
        list_del(&entry->node);
}

static inline void resource_list_free_entry(struct resource_entry *entry)
{
        kfree(entry);
}

static inline void
resource_list_destroy_entry(struct resource_entry *entry)
{
        resource_list_del(entry);
        resource_list_free_entry(entry);
}

#define resource_list_for_each_entry(entry, list)       \
        list_for_each_entry((entry), (list), node)

#define resource_list_for_each_entry_safe(entry, tmp, list)     \
        list_for_each_entry_safe((entry), (tmp), (list), node)

static inline struct resource_entry *
resource_list_first_type(struct list_head *list, unsigned long type)
{
        struct resource_entry *entry;

        resource_list_for_each_entry(entry, list) {
                if (resource_type(entry->res) == type)
                        return entry;
        }
        return NULL;
}

#endif /* _LINUX_RESOURCE_EXT_H */