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 ); |
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(new: &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(new: &entry->node, head); |
44 | } |
45 | |
46 | static inline void resource_list_del(struct resource_entry *entry) |
47 | { |
48 | list_del(entry: &entry->node); |
49 | } |
50 | |
51 | static inline void resource_list_free_entry(struct resource_entry *entry) |
52 | { |
53 | kfree(objp: 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(res: entry->res) == type) |
76 | return entry; |
77 | } |
78 | return NULL; |
79 | } |
80 | |
81 | #endif /* _LINUX_RESOURCE_EXT_H */ |
82 | |