/*
* 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 genericmm
* @{
*/
/** @file
*/
#ifndef KERN_PAGE_H_
#define KERN_PAGE_H_
#include <arch/types.h>
#include <mm/as.h>
#include <memstr.h>
/**
* Macro for computing page color.
*/
#define PAGE_COLOR(va) (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))
/** Operations to manipulate page mappings. */
typedef struct {
void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame,
int flags);
void (* mapping_remove)(as_t *as, uintptr_t page);
pte_t *(* mapping_find)(as_t *as, uintptr_t page);
} page_mapping_operations_t;
extern page_mapping_operations_t *page_mapping_operations;
extern void page_init(void);
extern void page_table_lock(as_t *as, bool lock);
extern void page_table_unlock(as_t *as, bool unlock);
extern void page_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame,
int flags);
extern void page_mapping_remove(as_t *as, uintptr_t page);
extern pte_t *page_mapping_find(as_t *as, uintptr_t page);
extern pte_t *page_table_create(int flags);
extern void page_table_destroy(pte_t *page_table);
extern void map_structure(uintptr_t s, size_t size);
extern uintptr_t hw_map(uintptr_t physaddr, size_t size);
#endif
/** @}
*/