/*
* Copyright (c) 2006 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup kernel_genarch_mm
* @{
*/
/**
* @file
* @brief This is the generic page hash table interface.
*/
#ifdef CONFIG_PAGE_HT
#ifndef KERN_PAGE_HT_H_
#define KERN_PAGE_HT_H_
#include <typedefs.h>
#include <mm/as.h>
#include <mm/page.h>
#include <mm/slab.h>
#include <adt/hash_table.h>
#define KEY_AS 0
#define KEY_PAGE 1
/* Macros for querying page hash table PTEs. */
#define PTE_VALID(pte) ((void *) (pte) != NULL)
#define PTE_PRESENT(pte) ((pte)->p != 0)
#define PTE_GET_FRAME(pte) ((pte)->frame)
#define PTE_READABLE(pte) 1
#define PTE_WRITABLE(pte) ((pte)->w != 0)
#define PTE_EXECUTABLE(pte) ((pte)->x != 0)
extern const as_operations_t as_ht_operations;
extern const page_mapping_operations_t ht_mapping_operations;
extern slab_cache_t *pte_cache;
extern hash_table_t page_ht;
extern const hash_table_ops_t ht_ops;
#endif
#endif
/** @}
*/