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kernel/linux-rt-4.4.41/include/linux/resource_ext.h 2.22 KB
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  /*
   * Copyright (C) 2015, Intel Corporation
   * Author: Jiang Liu <jiang.liu@linux.intel.com>
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms and conditions of the GNU General Public License,
   * version 2, as published by the Free Software Foundation.
   *
   * This program is distributed in the hope it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   * more details.
   */
  #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)
  
  #endif /* _LINUX_RESOURCE_EXT_H */