1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2015, Intel Corporation
4 * Author: Jiang Liu <jiang.liu@linux.intel.com>
5 */
6#ifndef _LINUX_RESOURCE_EXT_H
7#define _LINUX_RESOURCE_EXT_H
8#include <linux/types.h>
9#include <linux/list.h>
10#include <linux/ioport.h>
11#include <linux/slab.h>
12
13/* Represent resource window for bridge devices */
14struct resource_win {
15 struct resource res; /* In master (CPU) address space */
16 resource_size_t offset; /* Translation offset for bridge */
17};
18
19/*
20 * Common resource list management data structure and interfaces to support
21 * ACPI, PNP and PCI host bridge etc.
22 */
23struct resource_entry {
24 struct list_head node;
25 struct resource *res; /* In master (CPU) address space */
26 resource_size_t offset; /* Translation offset for bridge */
27 struct resource __res; /* Default storage for res */
28};
29
30extern struct resource_entry *
31resource_list_create_entry(struct resource *res, size_t extra_size);
32extern void resource_list_free(struct list_head *head);
33
34static inline void resource_list_add(struct resource_entry *entry,
35 struct list_head *head)
36{
37 list_add(new: &entry->node, head);
38}
39
40static inline void resource_list_add_tail(struct resource_entry *entry,
41 struct list_head *head)
42{
43 list_add_tail(new: &entry->node, head);
44}
45
46static inline void resource_list_del(struct resource_entry *entry)
47{
48 list_del(entry: &entry->node);
49}
50
51static inline void resource_list_free_entry(struct resource_entry *entry)
52{
53 kfree(objp: entry);
54}
55
56static inline void
57resource_list_destroy_entry(struct resource_entry *entry)
58{
59 resource_list_del(entry);
60 resource_list_free_entry(entry);
61}
62
63#define resource_list_for_each_entry(entry, list) \
64 list_for_each_entry((entry), (list), node)
65
66#define resource_list_for_each_entry_safe(entry, tmp, list) \
67 list_for_each_entry_safe((entry), (tmp), (list), node)
68
69static inline struct resource_entry *
70resource_list_first_type(struct list_head *list, unsigned long type)
71{
72 struct resource_entry *entry;
73
74 resource_list_for_each_entry(entry, list) {
75 if (resource_type(res: entry->res) == type)
76 return entry;
77 }
78 return NULL;
79}
80
81#endif /* _LINUX_RESOURCE_EXT_H */
82