/*
* Copyright (C) 2005 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 <arch/mm/page.h>
#include <arch/mm/tlb.h>
#include <genarch/mm/page_ht.h>
#include <mm/frame.h>
#include <bitops.h>
void page_arch_init(void)
{
page_mapping_operations = &ht_mapping_operations;
}
__address hw_map(__address physaddr, size_t size)
{
unsigned int order;
if (size <= FRAME_SIZE)
order = 0;
else
order = (fnzb32(size - 1) + 1) - FRAME_WIDTH;
__address virtaddr = PA2KA(PFN2ADDR(frame_alloc(order, FRAME_KA)));
dtlb_insert_mapping(virtaddr, physaddr, PAGESIZE_512K, true, false);
dtlb_insert_mapping(virtaddr + 512 * 1024, physaddr + 512 * 1024, PAGESIZE_512K, true, false);
return virtaddr;
}