181 lines
4.5 KiB
C
181 lines
4.5 KiB
C
/*
|
|
* Copyright (C) 1996 Wolfgang Solfrank.
|
|
* Copyright (C) 1996 TooLs GmbH.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by TooLs GmbH.
|
|
* 4. The name of TooLs GmbH may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
|
|
*
|
|
* $NetBSD: ofw_machdep.c,v 1.5 2000/05/23 13:25:43 tsubai Exp $
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/disk.h>
|
|
#include <sys/disklabel.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <net/ethernet.h>
|
|
|
|
#include <dev/ofw/openfirm.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_param.h>
|
|
#include <vm/vm_page.h>
|
|
|
|
#include <machine/powerpc.h>
|
|
#include <machine/ofw_machdep.h>
|
|
#include <powerpc/ofw/ofw_pci.h>
|
|
|
|
#define OFMEM_REGIONS 32
|
|
static struct mem_region OFmem[OFMEM_REGIONS + 1], OFavail[OFMEM_REGIONS + 3];
|
|
|
|
extern long ofmsr;
|
|
extern struct pmap ofw_pmap;
|
|
extern int pmap_bootstrapped;
|
|
static int (*ofwcall)(void *);
|
|
|
|
/*
|
|
* This is called during powerpc_init, before the system is really initialized.
|
|
* It shall provide the total and the available regions of RAM.
|
|
* Both lists must have a zero-size entry as terminator.
|
|
* The available regions need not take the kernel into account, but needs
|
|
* to provide space for two additional entry beyond the terminating one.
|
|
*/
|
|
void
|
|
mem_regions(struct mem_region **memp, int *memsz,
|
|
struct mem_region **availp, int *availsz)
|
|
{
|
|
int phandle;
|
|
int asz, msz;
|
|
|
|
/*
|
|
* Get memory.
|
|
*/
|
|
if ((phandle = OF_finddevice("/memory")) == -1
|
|
|| (msz = OF_getprop(phandle, "reg",
|
|
OFmem, sizeof OFmem[0] * OFMEM_REGIONS))
|
|
<= 0
|
|
|| (asz = OF_getprop(phandle, "available",
|
|
OFavail, sizeof OFavail[0] * OFMEM_REGIONS))
|
|
<= 0)
|
|
panic("no memory?");
|
|
*memp = OFmem;
|
|
*memsz = msz / sizeof(struct mem_region);
|
|
*availp = OFavail;
|
|
*availsz = asz / sizeof(struct mem_region);
|
|
}
|
|
|
|
void
|
|
set_openfirm_callback(int (*openfirm)(void *))
|
|
{
|
|
|
|
ofwcall = openfirm;
|
|
}
|
|
|
|
int
|
|
openfirmware(void *args)
|
|
{
|
|
long oldmsr;
|
|
int result;
|
|
u_int srsave[16];
|
|
u_int i;
|
|
|
|
__asm __volatile( "\t"
|
|
"sync\n\t"
|
|
"mfmsr %0\n\t"
|
|
"mtmsr %1\n\t"
|
|
"isync\n"
|
|
: "=r" (oldmsr)
|
|
: "r" (ofmsr)
|
|
);
|
|
|
|
if (pmap_bootstrapped) {
|
|
/*
|
|
* Swap the kernel's address space with OpenFirmware's
|
|
*/
|
|
for (i = 0; i < 16; i++) {
|
|
srsave[i] = mfsrin(i << ADDR_SR_SHFT);
|
|
mtsrin(i << ADDR_SR_SHFT, ofw_pmap.pm_sr[i]);
|
|
}
|
|
isync();
|
|
}
|
|
|
|
result = ofwcall(args);
|
|
|
|
if (pmap_bootstrapped) {
|
|
/*
|
|
* Restore the kernel's addr space. The isync() doesn;t
|
|
* work outside the loop unless mtsrin() is open-coded
|
|
* in an asm statement :(
|
|
*/
|
|
for (i = 0; i < 16; i++) {
|
|
mtsrin(i << ADDR_SR_SHFT, srsave[i]);
|
|
isync();
|
|
}
|
|
}
|
|
|
|
__asm( "\t"
|
|
"mtmsr %0\n\t"
|
|
"isync\n"
|
|
: : "r" (oldmsr)
|
|
);
|
|
|
|
return (result);
|
|
}
|
|
|
|
void
|
|
ppc_exit()
|
|
{
|
|
|
|
OF_exit();
|
|
}
|
|
|
|
void
|
|
ppc_boot(str)
|
|
char *str;
|
|
{
|
|
|
|
OF_boot(str);
|
|
}
|
|
|
|
void
|
|
OF_getetheraddr(device_t dev, u_char *addr)
|
|
{
|
|
phandle_t node;
|
|
|
|
node = ofw_pci_find_node(dev);
|
|
OF_getprop(node, "local-mac-address", addr, ETHER_ADDR_LEN);
|
|
}
|