prom_mmu.c revision d24234c24aeaca4ca56ee3ac2794507968f274c4
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* This file contains platform-dependent MMU support routines,
* suitable for mmu methods with 2-cell physical addresses.
* Use of these routines makes the caller platform-dependent,
* since the caller assumes knowledge of the physical layout of
* the machines address space. Generic programs should use the
* standard client interface memory allocators.
*/
#include <sys/promimpl.h>
prom_mmu_ihandle(void)
{
return (immu);
return (immu);
}
/*
* prom_map_phys:
*
* Create an MMU mapping for a given physical address to a given virtual
* address. The given resources are assumed to be owned by the caller,
* and are *not* removed from any free lists.
*
* This routine is suitable for mapping a 2-cell physical address.
*/
int
{
int rv;
return (-1);
if (rv != 0)
return (-1);
return (-1);
return (0);
}
void
{
}
/*
* Allocate aligned or unaligned virtual address space, unmapped.
*/
{
int rv;
return ((caddr_t)-1);
if (align == 0)
align = 1;
if (rv != 0)
return ((caddr_t)-1);
return ((caddr_t)-1);
}
/*
* Claim a region of virtual address space, unmapped.
*/
{
int rv;
return ((caddr_t)-1);
if (rv != 0)
return ((caddr_t)-1);
return ((caddr_t)-1);
}
/*
* Free virtual address resource (no unmapping is done).
*/
void
{
return;
(void) p1275_cif_handler(&ci);
}
/*
* Un-map virtual address. Does not free underlying resources.
*/
void
{
return;
(void) p1275_cif_handler(&ci);
}
static pnode_t
prom_mmu_phandle(void)
{
prom_panic("Can't get mmu ihandle");
}
return (pmmu);
}
int
prom_virt_avail_len(void)
{
}
int
{
}
/*
* Translate virtual address to physical address.
* Returns 0: Success; Non-zero: failure.
* Returns *phys_hi, *phys_lo and *mode only if successful.
*/
int
{
int rv;
*valid = 0;
return (-1);
return (-1);
return (-1);
return (0);
/* Res4: sr3: phys-hi ... Res5: sr4: phys-lo */
return (0);
}