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 */
14 struct 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 */
23 struct 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
30 extern struct resource_entry *
31 resource_list_create_entry(struct resource *res, size_t extra_size);
32 extern void resource_list_free(struct list_head *head);
33
34 static inline void resource_list_add(struct resource_entry *entry,
35 struct list_head *head)
36 {
37 list_add(&entry->node, head);
38 }
39
40 static inline void resource_list_add_tail(struct resource_entry *entry,
41 struct list_head *head)
42 {
43 list_add_tail(&entry->node, head);
44 }
45
46 static inline void resource_list_del(struct resource_entry *entry)
47 {
48 list_del(&entry->node);
49 }
50
51 static inline void resource_list_free_entry(struct resource_entry *entry)
52 {
53 kfree(entry);
54 }
55
56 static inline void
57 resource_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
69 static inline struct resource_entry *
70 resource_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(entry->res) == type)
76 return entry;
77 }
78 return NULL;
79 }
80
81 #endif /* _LINUX_RESOURCE_EXT_H */
82
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