LXR linux/include/linux/resource

   1/*
   2 * Copyright (C) 2015, Intel Corporation
   3 * Author: Jiang Liu <jiang.liu@linux.intel.com>
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms and conditions of the GNU General Public License,
   7 * version 2, as published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 * more details.
  13 */
  14#ifndef _LINUX_RESOURCE_EXT_H
  15#define _LINUX_RESOURCE_EXT_H
  16#include <linux/types.h>
  17#include <linux/list.h>
  18#include <linux/ioport.h>
  19#include <linux/slab.h>
  20
  21/* Represent resource window for bridge devices */
  22struct resource_win {
  23        struct resource res;            /* In master (CPU) address space */
  24        resource_size_t offset;         /* Translation offset for bridge */
  25};
  26
  27/*
  28 * Common resource list management data structure and interfaces to support
  29 * ACPI, PNP and PCI host bridge etc.
  30 */
  31struct resource_entry {
  32        struct list_head        node;
  33        struct resource         *res;   /* In master (CPU) address space */
  34        resource_size_t         offset; /* Translation offset for bridge */
  35        struct resource         __res;  /* Default storage for res */
  36};
  37
  38extern struct resource_entry *
  39resource_list_create_entry(struct resource *res, size_t extra_size);
  40extern void resource_list_free(struct list_head *head);
  41
  42static inline void resource_list_add(struct resource_entry *entry,
  43                                     struct list_head *head)
  44{
  45        list_add(&entry->node, head);
  46}
  47
  48static inline void resource_list_add_tail(struct resource_entry *entry,
  49                                          struct list_head *head)
  50{
  51        list_add_tail(&entry->node, head);
  52}
  53
  54static inline void resource_list_del(struct resource_entry *entry)
  55{
  56        list_del(&entry->node);
  57}
  58
  59static inline void resource_list_free_entry(struct resource_entry *entry)
  60{
  61        kfree(entry);
  62}
  63
  64static inline void
  65resource_list_destroy_entry(struct resource_entry *entry)
  66{
  67        resource_list_del(entry);
  68        resource_list_free_entry(entry);
  69}
  70
  71#define resource_list_for_each_entry(entry, list)       \
  72        list_for_each_entry((entry), (list), node)
  73
  74#define resource_list_for_each_entry_safe(entry, tmp, list)     \
  75        list_for_each_entry_safe((entry), (tmp), (list), node)
  76
  77#endif /* _LINUX_RESOURCE_EXT_H */
  78