/*
* 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_ppc32_mm
* @{
*/
/** @file
*/
#include <arch/mm/as.h>
#include <genarch/mm/as_pt.h>
#include <genarch/mm/page_pt.h>
#include <genarch/mm/asid_fifo.h>
#include <arch.h>
/** Architecture dependent address space init. */
void as_arch_init(void)
{
as_operations = &as_pt_operations;
asid_fifo_init();
}
/** Install address space.
*
* Install ASID.
*
* @param as Address space structure.
*
*/
void as_install_arch(as_t *as)
{
uint32_t sr;
/* Lower 2 GB, user and supervisor access */
for (sr = 0; sr < 8; sr++)
sr_set(0x6000, as->asid, sr);
/* Upper 2 GB, only supervisor access */
for (sr = 8; sr < 16; sr++)
sr_set(0x4000, as->asid, sr);
}
/** @}
*/