/*
* Copyright (c) 2001-2004 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_generic_mm
* @{
*/
/** @file
*/
#ifndef KERN_PAGE_H_
#define KERN_PAGE_H_
#include <typedefs.h>
#include <proc/task.h>
#include <mm/as.h>
#include <arch/mm/page.h>
#define P2SZ(pages) \
((pages) << PAGE_WIDTH)
/** Operations to manipulate page mappings. */
typedef struct {
void (*mapping_insert)(as_t *, uintptr_t, uintptr_t, unsigned int);
void (*mapping_remove)(as_t *, uintptr_t);
bool (*mapping_find)(as_t *, uintptr_t, bool, pte_t *);
void (*mapping_update)(as_t *, uintptr_t, bool, pte_t *);
void (*mapping_make_global)(uintptr_t, size_t);
} page_mapping_operations_t;
extern const page_mapping_operations_t *page_mapping_operations;
extern void page_init(void);
extern void page_table_lock(as_t *, bool);
extern void page_table_unlock(as_t *, bool);
extern bool page_table_locked(as_t *);
extern void page_mapping_insert(as_t *, uintptr_t, uintptr_t, unsigned int);
extern void page_mapping_remove(as_t *, uintptr_t);
extern bool page_mapping_find(as_t *, uintptr_t, bool, pte_t *);
extern void page_mapping_update(as_t *, uintptr_t, bool, pte_t *);
extern void page_mapping_make_global(uintptr_t, size_t);
extern pte_t *page_table_create(unsigned int);
extern void page_table_destroy(pte_t *);
extern errno_t page_find_mapping(uintptr_t, uintptr_t *);
extern sys_errno_t sys_page_find_mapping(uintptr_t, uspace_ptr_uintptr_t);
#endif
/** @}
*/