/*
* 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.
*/
#include <genarch/mm/page_ht.h>
#include <mm/page.h>
#include <mm/frame.h>
#include <arch/mm/asid.h>
#include <arch/types.h>
#include <typedefs.h>
#include <arch/asm.h>
static void ht_mapping_insert(__address page, asid_t asid, __address frame, int flags, __address root);
static pte_t *ht_mapping_find(__address page, asid_t asid, __address root);
page_operations_t page_ht_operations = {
.mapping_insert = ht_mapping_insert,
.mapping_find = ht_mapping_find
};
/** Map page to frame using page hash table.
*
* Map virtual address 'page' to physical address 'frame'
* using 'flags'.
*
* @param page Virtual address of the page to be mapped.
* @param asid Address space to which page belongs.
* @param frame Physical address of memory frame to which the mapping is done.
* @param flags Flags to be used for mapping.
* @param root Explicit PTL0 address.
*/
void ht_mapping_insert(__address page, asid_t asid, __address frame, int flags, __address root)
{
}
/** Find mapping for virtual page in page hash table.
*
* Find mapping for virtual page.
*
* @param page Virtual page.
* @param asid Address space to wich page belongs.
* @param root PTL0 address if non-zero.
*
* @return NULL if there is no such mapping; entry from PTL3 describing the mapping otherwise.
*/
pte_t *ht_mapping_find(__address page, asid_t asid, __address root)
{
return NULL;
}