867 lines
16 KiB
C
867 lines
16 KiB
C
/* $NetBSD: Locore.c,v 1.3 2002/09/27 15:36:49 provos Exp $ */
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/*
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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* Copyright (C) 1995, 1996 TooLs GmbH.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by TooLs GmbH.
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* 4. The name of TooLs GmbH may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <lib/libsa/stand.h>
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#include "openfirm.h"
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#include <machine/cpu.h>
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vaddr_t OF_claim_virt __P((vaddr_t vaddr, int len));
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vaddr_t OF_alloc_virt __P((int len, int align));
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int OF_free_virt __P((vaddr_t vaddr, int len));
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int OF_unmap_virt __P((vaddr_t vaddr, int len));
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vaddr_t OF_map_phys __P((paddr_t paddr, off_t size, vaddr_t vaddr, int mode));
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paddr_t OF_alloc_phys __P((int len, int align));
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paddr_t OF_claim_phys __P((paddr_t phys, int len));
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int OF_free_phys __P((paddr_t paddr, int len));
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extern int openfirmware(void *);
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void setup __P((void));
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#if 0
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#ifdef XCOFF_GLUE
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asm (".text; .globl _entry; _entry: .long _start,0,0");
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#endif
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__dead void
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_start(vpd, res, openfirm, arg, argl)
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void *vpd;
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int res;
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int (*openfirm)(void *);
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char *arg;
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int argl;
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{
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extern char etext[];
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#ifdef FIRMWORKSBUGS
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syncicache((void *)RELOC, etext - (char *)RELOC);
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#endif
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openfirmware = openfirm; /* Save entry to Open Firmware */
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setup();
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main(arg, argl);
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exit(0);
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}
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#endif
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__dead void
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_rtt()
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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} args;
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args.name = ADR2CELL("exit");
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args.nargs = 0;
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args.nreturns = 0;
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openfirmware(&args);
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while (1); /* just in case */
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}
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void
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OF_enter()
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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} args;
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args.name = ADR2CELL("enter");
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args.nargs = 0;
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args.nreturns = 0;
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openfirmware(&args);
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}
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int
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OF_finddevice(name)
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char *name;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t device;
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cell_t phandle;
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} args;
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args.name = ADR2CELL("finddevice");
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args.nargs = 1;
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args.nreturns = 1;
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args.device = ADR2CELL(name);
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if (openfirmware(&args) == -1)
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return -1;
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return args.phandle;
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}
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int
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OF_instance_to_package(ihandle)
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int ihandle;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t ihandle;
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cell_t phandle;
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} args;
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args.name = ADR2CELL("instance-to-package");
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args.nargs = 1;
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args.nreturns = 1;
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args.ihandle = HDL2CELL(ihandle);
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if (openfirmware(&args) == -1)
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return -1;
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return args.phandle;
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}
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int
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OF_getprop(handle, prop, buf, buflen)
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int handle;
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char *prop;
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void *buf;
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int buflen;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t phandle;
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cell_t prop;
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cell_t buf;
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cell_t buflen;
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cell_t size;
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} args;
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args.name = ADR2CELL("getprop");
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args.nargs = 4;
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args.nreturns = 1;
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args.phandle = HDL2CELL(handle);
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args.prop = ADR2CELL(prop);
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args.buf = ADR2CELL(buf);
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args.buflen = buflen;
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if (openfirmware(&args) == -1)
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return -1;
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return args.size;
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}
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#ifdef __notyet__ /* Has a bug on FirePower */
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int
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OF_setprop(handle, prop, buf, len)
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u_int handle;
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char *prop;
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void *buf;
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int len;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t phandle;
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cell_t prop;
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cell_t buf;
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cell_t len;
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cell_t size;
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} args;
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args.name = ADR2CELL("setprop");
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args.nargs = 4;
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args.nreturns = 1;
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args.phandle = HDL2CELL(handle);
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args.prop = ADR2CELL(prop);
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args.buf = ADR2CELL(buf);
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args.len = len;
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if (openfirmware(&args) == -1)
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return -1;
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return args.size;
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}
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#endif
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int
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OF_open(dname)
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char *dname;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t dname;
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cell_t handle;
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} args;
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args.name = ADR2CELL("open");
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args.nargs = 1;
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args.nreturns = 1;
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args.dname = ADR2CELL(dname);
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if (openfirmware(&args) == -1 ||
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args.handle == 0)
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return -1;
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return args.handle;
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}
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void
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OF_close(handle)
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int handle;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t handle;
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} args;
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args.name = ADR2CELL("close");
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args.nargs = 1;
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args.nreturns = 1;
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args.handle = HDL2CELL(handle);
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openfirmware(&args);
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}
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int
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OF_write(handle, addr, len)
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int handle;
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void *addr;
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int len;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t ihandle;
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cell_t addr;
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cell_t len;
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cell_t actual;
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} args;
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args.name = ADR2CELL("write");
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args.nargs = 3;
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args.nreturns = 1;
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args.ihandle = HDL2CELL(handle);
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args.addr = ADR2CELL(addr);
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args.len = len;
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if (openfirmware(&args) == -1)
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return -1;
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return args.actual;
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}
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int
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OF_read(handle, addr, len)
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int handle;
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void *addr;
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int len;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t ihandle;
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cell_t addr;
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cell_t len;
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cell_t actual;
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} args;
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args.name = ADR2CELL("read");
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args.nargs = 3;
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args.nreturns = 1;
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args.ihandle = HDL2CELL(handle);
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args.addr = ADR2CELL(addr);
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args.len = len;
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if (openfirmware(&args) == -1) {
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return -1;
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}
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return args.actual;
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}
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int
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OF_seek(handle, pos)
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int handle;
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u_quad_t pos;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t handle;
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cell_t poshi;
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cell_t poslo;
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cell_t status;
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} args;
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args.name = ADR2CELL("seek");
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args.nargs = 3;
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args.nreturns = 1;
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args.handle = HDL2CELL(handle);
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args.poshi = HDL2CELL(pos >> 32);
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args.poslo = HDL2CELL(pos);
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if (openfirmware(&args) == -1) {
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return -1;
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}
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return args.status;
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}
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void
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OF_release(virt, size)
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void *virt;
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u_int size;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t virt;
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cell_t size;
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} args;
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args.name = ADR2CELL("release");
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args.nargs = 2;
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args.nreturns = 0;
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args.virt = ADR2CELL(virt);
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args.size = size;
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openfirmware(&args);
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}
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int
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OF_milliseconds()
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t ms;
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} args;
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args.name = ADR2CELL("milliseconds");
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args.nargs = 0;
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args.nreturns = 1;
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openfirmware(&args);
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return args.ms;
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}
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void
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OF_chain(virt, size, entry, arg, len)
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void *virt;
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u_int size;
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void (*entry)();
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void *arg;
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u_int len;
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{
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extern int64_t romp;
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extern int debug;
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t virt;
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cell_t size;
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cell_t entry;
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cell_t arg;
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cell_t len;
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} args;
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args.name = ADR2CELL("chain");
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args.nargs = 5;
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args.nreturns = 0;
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args.virt = ADR2CELL(virt);
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args.size = size;
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args.entry = ADR2CELL(entry);
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args.arg = ADR2CELL(arg);
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args.len = len;
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openfirmware(&args);
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if (debug) {
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printf("OF_chain: prom returned!\n");
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/* OK, firmware failed us. Try calling prog directly */
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printf("Calling entry(0, %p, %x, %lx, %lx)\n", arg, len,
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(unsigned long)romp, (unsigned long)romp);
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}
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entry(0, arg, len, (unsigned long)romp, (unsigned long)romp);
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panic("OF_chain: kernel returned!");
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__asm("ta 2" : :);
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}
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static u_int stdin;
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static u_int stdout;
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static u_int mmuh = -1;
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static u_int memh = -1;
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void
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setup()
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{
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u_int chosen;
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if ((chosen = OF_finddevice("/chosen")) == -1)
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_rtt();
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if (OF_getprop(chosen, "stdin", &stdin, sizeof(stdin)) != sizeof(stdin)
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|| OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)) != sizeof(stdout)
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|| OF_getprop(chosen, "mmu", &mmuh, sizeof(mmuh)) != sizeof(mmuh)
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|| OF_getprop(chosen, "memory", &memh, sizeof(memh)) != sizeof(memh))
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_rtt();
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}
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/*
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* The following need either the handle to memory or the handle to the MMU.
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*/
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/*
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* Grab some address space from the prom
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*
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* Only works while the prom is actively mapping us.
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*/
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vaddr_t
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OF_claim_virt(vaddr, len)
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vaddr_t vaddr;
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int len;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t method;
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cell_t ihandle;
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cell_t align;
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cell_t len;
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cell_t vaddr;
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cell_t status;
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cell_t retaddr;
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} args;
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#ifdef __notyet
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if (mmuh == -1 && ((mmuh = get_mmu_handle()) == -1)) {
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OF_printf("OF_claim_virt: cannot get mmuh\r\n");
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return -1LL;
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}
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#endif
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args.name = ADR2CELL("call-method");
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args.nargs = 5;
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args.nreturns = 2;
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args.method = ADR2CELL("claim");
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args.ihandle = HDL2CELL(mmuh);
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args.align = 0;
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args.len = len;
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args.vaddr = ADR2CELL(vaddr);
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if(openfirmware(&args) != 0)
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return -1LL;
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return args.retaddr; /* Kluge till we go 64-bit */
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}
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/*
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* Request some address space from the prom
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*
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* Only works while the prom is actively mapping us.
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*/
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vaddr_t
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OF_alloc_virt(len, align)
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int len;
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int align;
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{
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int retaddr=-1;
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t method;
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cell_t ihandle;
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cell_t align;
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cell_t len;
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cell_t status;
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cell_t retaddr;
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} args;
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#ifdef __notyet
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if (mmuh == -1 && ((mmuh = get_mmu_handle()) == -1)) {
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OF_printf("OF_alloc_virt: cannot get mmuh\r\n");
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return -1LL;
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}
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#endif
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args.name = ADR2CELL("call-method");
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args.nargs = 4;
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args.nreturns = 2;
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args.method = ADR2CELL("claim");
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args.ihandle = mmuh;
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args.align = align;
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args.len = len;
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args.retaddr = ADR2CELL(&retaddr);
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if(openfirmware(&args) != 0)
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return -1LL;
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return (vaddr_t)args.retaddr; /* Kluge till we go 64-bit */
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}
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/*
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* Release some address space to the prom
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*
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* Only works while the prom is actively mapping us.
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*/
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int
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OF_free_virt(vaddr, len)
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vaddr_t vaddr;
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int len;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
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cell_t method;
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cell_t ihandle;
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cell_t len;
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cell_t vaddr;
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} args;
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#ifdef __notyet
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if (mmuh == -1 && ((mmuh = get_mmu_handle()) == -1)) {
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OF_printf("OF_claim_virt: cannot get mmuh\r\n");
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return -1;
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}
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#endif
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args.name = ADR2CELL("call-method");
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args.nargs = 4;
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args.nreturns = 0;
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args.method = ADR2CELL("release");
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args.ihandle = HDL2CELL(mmuh);
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args.vaddr = ADR2CELL(vaddr);
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args.len = len;
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return openfirmware(&args);
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}
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/*
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* Unmap some address space
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*
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* Only works while the prom is actively mapping us.
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*/
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int
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OF_unmap_virt(vaddr, len)
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vaddr_t vaddr;
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int len;
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{
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struct {
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cell_t name;
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cell_t nargs;
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cell_t nreturns;
|
|
cell_t method;
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cell_t ihandle;
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cell_t len;
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cell_t vaddr;
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} args;
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|
|
#ifdef __notyet
|
|
if (mmuh == -1 && ((mmuh = get_mmu_handle()) == -1)) {
|
|
OF_printf("OF_claim_virt: cannot get mmuh\r\n");
|
|
return -1;
|
|
}
|
|
#endif
|
|
args.name = ADR2CELL("call-method");
|
|
args.nargs = 4;
|
|
args.nreturns = 0;
|
|
args.method = ADR2CELL("unmap");
|
|
args.ihandle = HDL2CELL(mmuh);
|
|
args.vaddr = ADR2CELL(vaddr);
|
|
args.len = len;
|
|
return openfirmware(&args);
|
|
}
|
|
|
|
/*
|
|
* Have prom map in some memory
|
|
*
|
|
* Only works while the prom is actively mapping us.
|
|
*/
|
|
vaddr_t
|
|
OF_map_phys(paddr, size, vaddr, mode)
|
|
paddr_t paddr;
|
|
off_t size;
|
|
vaddr_t vaddr;
|
|
int mode;
|
|
{
|
|
struct {
|
|
cell_t name;
|
|
cell_t nargs;
|
|
cell_t nreturns;
|
|
cell_t method;
|
|
cell_t ihandle;
|
|
cell_t mode;
|
|
cell_t size;
|
|
cell_t vaddr;
|
|
cell_t paddr_hi;
|
|
cell_t paddr_lo;
|
|
cell_t status;
|
|
cell_t retaddr;
|
|
} args;
|
|
|
|
#ifdef __notyet
|
|
if (mmuh == -1 && ((mmuh = get_mmu_handle()) == -1)) {
|
|
OF_printf("OF_map_phys: cannot get mmuh\r\n");
|
|
return 0LL;
|
|
}
|
|
#endif
|
|
args.name = ADR2CELL("call-method");
|
|
args.nargs = 7;
|
|
args.nreturns = 1;
|
|
args.method = ADR2CELL("map");
|
|
args.ihandle = HDL2CELL(mmuh);
|
|
args.mode = mode;
|
|
args.size = size;
|
|
args.vaddr = ADR2CELL(vaddr);
|
|
args.paddr_hi = ADR2CELL(paddr>>32);
|
|
args.paddr_lo = ADR2CELL(paddr);
|
|
|
|
if (openfirmware(&args) == -1)
|
|
return -1;
|
|
if (args.status)
|
|
return -1;
|
|
return (vaddr_t)args.retaddr;
|
|
}
|
|
|
|
|
|
/*
|
|
* Request some RAM from the prom
|
|
*
|
|
* Only works while the prom is actively mapping us.
|
|
*/
|
|
paddr_t
|
|
OF_alloc_phys(len, align)
|
|
int len;
|
|
int align;
|
|
{
|
|
paddr_t paddr;
|
|
struct {
|
|
cell_t name;
|
|
cell_t nargs;
|
|
cell_t nreturns;
|
|
cell_t method;
|
|
cell_t ihandle;
|
|
cell_t align;
|
|
cell_t len;
|
|
cell_t status;
|
|
cell_t phys_hi;
|
|
cell_t phys_lo;
|
|
} args;
|
|
|
|
#ifdef __notyet
|
|
if (memh == -1 && ((memh = get_memory_handle()) == -1)) {
|
|
OF_printf("OF_alloc_phys: cannot get memh\r\n");
|
|
return -1LL;
|
|
}
|
|
#endif
|
|
args.name = ADR2CELL("call-method");
|
|
args.nargs = 4;
|
|
args.nreturns = 3;
|
|
args.method = ADR2CELL("claim");
|
|
args.ihandle = HDL2CELL(memh);
|
|
args.align = align;
|
|
args.len = len;
|
|
if(openfirmware(&args) != 0)
|
|
return -1LL;
|
|
paddr = (paddr_t)(args.phys_hi<<32)|((unsigned int)(args.phys_lo));
|
|
return paddr; /* Kluge till we go 64-bit */
|
|
}
|
|
|
|
/*
|
|
* Request some specific RAM from the prom
|
|
*
|
|
* Only works while the prom is actively mapping us.
|
|
*/
|
|
paddr_t
|
|
OF_claim_phys(phys, len)
|
|
paddr_t phys;
|
|
int len;
|
|
{
|
|
paddr_t paddr;
|
|
struct {
|
|
cell_t name;
|
|
cell_t nargs;
|
|
cell_t nreturns;
|
|
cell_t method;
|
|
cell_t ihandle;
|
|
cell_t align;
|
|
cell_t len;
|
|
cell_t phys_hi;
|
|
cell_t phys_lo;
|
|
cell_t status;
|
|
cell_t res;
|
|
cell_t rphys_hi;
|
|
cell_t rphys_lo;
|
|
} args;
|
|
|
|
#ifdef __notyet
|
|
if (memh == -1 && ((memh = get_memory_handle()) == -1)) {
|
|
OF_printf("OF_alloc_phys: cannot get memh\r\n");
|
|
return 0LL;
|
|
}
|
|
#endif
|
|
args.name = ADR2CELL("call-method");
|
|
args.nargs = 6;
|
|
args.nreturns = 4;
|
|
args.method = ADR2CELL("claim");
|
|
args.ihandle = HDL2CELL(memh);
|
|
args.align = 0;
|
|
args.len = len;
|
|
args.phys_hi = HDL2CELL(phys>>32);
|
|
args.phys_lo = HDL2CELL(phys);
|
|
if(openfirmware(&args) != 0)
|
|
return 0LL;
|
|
paddr = (paddr_t)(args.rphys_hi<<32)|((unsigned int)(args.rphys_lo));
|
|
return paddr;
|
|
}
|
|
|
|
/*
|
|
* Free some RAM to prom
|
|
*
|
|
* Only works while the prom is actively mapping us.
|
|
*/
|
|
int
|
|
OF_free_phys(phys, len)
|
|
paddr_t phys;
|
|
int len;
|
|
{
|
|
struct {
|
|
cell_t name;
|
|
cell_t nargs;
|
|
cell_t nreturns;
|
|
cell_t method;
|
|
cell_t ihandle;
|
|
cell_t len;
|
|
cell_t phys_hi;
|
|
cell_t phys_lo;
|
|
} args;
|
|
|
|
#ifdef __notyet
|
|
if (memh == -1 && ((memh = get_memory_handle()) == -1)) {
|
|
OF_printf("OF_free_phys: cannot get memh\r\n");
|
|
return -1;
|
|
}
|
|
#endif
|
|
args.name = ADR2CELL("call-method");
|
|
args.nargs = 5;
|
|
args.nreturns = 0;
|
|
args.method = ADR2CELL("release");
|
|
args.ihandle = HDL2CELL(memh);
|
|
args.len = len;
|
|
args.phys_hi = HDL2CELL(phys>>32);
|
|
args.phys_lo = HDL2CELL(phys);
|
|
return openfirmware(&args);
|
|
}
|
|
|
|
|
|
/*
|
|
* Claim virtual memory -- does not map it in.
|
|
*/
|
|
|
|
void *
|
|
OF_claim(virt, size, align)
|
|
void *virt;
|
|
u_int size;
|
|
u_int align;
|
|
{
|
|
#define SUNVMOF
|
|
#ifndef SUNVMOF
|
|
struct {
|
|
cell_t name;
|
|
cell_t nargs;
|
|
cell_t nreturns;
|
|
cell_t virt;
|
|
cell_t size;
|
|
cell_t align;
|
|
cell_t baseaddr;
|
|
} args;
|
|
|
|
|
|
args.name = ADR2CELL("claim");
|
|
args.nargs = 3;
|
|
args.nreturns = 1;
|
|
args.virt = virt;
|
|
args.size = size;
|
|
args.align = align;
|
|
if (openfirmware(&args) == -1)
|
|
return (void *)-1;
|
|
return args.baseaddr;
|
|
#else
|
|
/*
|
|
* Sun Ultra machines run the firmware with VM enabled,
|
|
* so you need to handle allocating and mapping both
|
|
* virtual and physical memory. Ugh.
|
|
*/
|
|
|
|
paddr_t paddr;
|
|
void* newvirt = NULL;
|
|
|
|
if (virt == NULL) {
|
|
if ((virt = (void*)OF_alloc_virt(size, align)) == (void*)-1) {
|
|
printf("OF_alloc_virt(%d,%d) failed w/%x\n", size, align, virt);
|
|
return (void *)-1;
|
|
}
|
|
} else {
|
|
if ((newvirt = (void*)OF_claim_virt((vaddr_t)virt, size)) == (void*)-1) {
|
|
printf("OF_claim_virt(%x,%d) failed w/%x\n", virt, size, newvirt);
|
|
return (void *)-1;
|
|
}
|
|
}
|
|
if ((paddr = OF_alloc_phys(size, align)) == -1) {
|
|
printf("OF_alloc_phys(%d,%d) failed\n", size, align);
|
|
OF_free_virt((vaddr_t)virt, size);
|
|
return (void *)-1;
|
|
}
|
|
if (OF_map_phys(paddr, size, (vaddr_t)virt, -1) == -1) {
|
|
printf("OF_map_phys(%x,%d,%x,%d) failed\n", paddr, size, virt, -1);
|
|
OF_free_phys((paddr_t)paddr, size);
|
|
OF_free_virt((vaddr_t)virt, size);
|
|
return (void *)-1;
|
|
}
|
|
return (void *)virt;
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
putchar(c)
|
|
int c;
|
|
{
|
|
char ch = c;
|
|
|
|
if (c == '\n')
|
|
putchar('\r');
|
|
OF_write(stdout, &ch, 1);
|
|
}
|
|
|
|
int
|
|
getchar()
|
|
{
|
|
unsigned char ch = '\0';
|
|
int l;
|
|
|
|
while ((l = OF_read(stdin, &ch, 1)) != 1)
|
|
if (l != -2 && l != 0)
|
|
return -1;
|
|
return ch;
|
|
}
|