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machdep.c revision 1.26.2.1
      1  1.26.2.1     yamt /*	$NetBSD: machdep.c,v 1.26.2.1 2006/05/24 10:56:47 yamt Exp $	*/
      2       1.1      scw 
      3       1.1      scw /*
      4       1.1      scw  * Copyright 2001, 2002 Wasabi Systems, Inc.
      5       1.1      scw  * All rights reserved.
      6       1.1      scw  *
      7       1.1      scw  * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc.
      8       1.1      scw  *
      9       1.1      scw  * Redistribution and use in source and binary forms, with or without
     10       1.1      scw  * modification, are permitted provided that the following conditions
     11       1.1      scw  * are met:
     12       1.1      scw  * 1. Redistributions of source code must retain the above copyright
     13       1.1      scw  *    notice, this list of conditions and the following disclaimer.
     14       1.1      scw  * 2. Redistributions in binary form must reproduce the above copyright
     15       1.1      scw  *    notice, this list of conditions and the following disclaimer in the
     16       1.1      scw  *    documentation and/or other materials provided with the distribution.
     17       1.1      scw  * 3. All advertising materials mentioning features or use of this software
     18       1.1      scw  *    must display the following acknowledgement:
     19       1.1      scw  *      This product includes software developed for the NetBSD Project by
     20       1.1      scw  *      Wasabi Systems, Inc.
     21       1.1      scw  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22       1.1      scw  *    or promote products derived from this software without specific prior
     23       1.1      scw  *    written permission.
     24       1.1      scw  *
     25       1.1      scw  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26       1.1      scw  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27       1.1      scw  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28       1.1      scw  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29       1.1      scw  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30       1.1      scw  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31       1.1      scw  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32       1.1      scw  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33       1.1      scw  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34       1.1      scw  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35       1.1      scw  * POSSIBILITY OF SUCH DAMAGE.
     36       1.1      scw  */
     37       1.1      scw 
     38       1.1      scw /*
     39       1.1      scw  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
     40       1.1      scw  * Copyright (C) 1995, 1996 TooLs GmbH.
     41       1.1      scw  * All rights reserved.
     42       1.1      scw  *
     43       1.1      scw  * Redistribution and use in source and binary forms, with or without
     44       1.1      scw  * modification, are permitted provided that the following conditions
     45       1.1      scw  * are met:
     46       1.1      scw  * 1. Redistributions of source code must retain the above copyright
     47       1.1      scw  *    notice, this list of conditions and the following disclaimer.
     48       1.1      scw  * 2. Redistributions in binary form must reproduce the above copyright
     49       1.1      scw  *    notice, this list of conditions and the following disclaimer in the
     50       1.1      scw  *    documentation and/or other materials provided with the distribution.
     51       1.1      scw  * 3. All advertising materials mentioning features or use of this software
     52       1.1      scw  *    must display the following acknowledgement:
     53       1.1      scw  *	This product includes software developed by TooLs GmbH.
     54       1.1      scw  * 4. The name of TooLs GmbH may not be used to endorse or promote products
     55       1.1      scw  *    derived from this software without specific prior written permission.
     56       1.1      scw  *
     57       1.1      scw  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
     58       1.1      scw  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     59       1.1      scw  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     60       1.1      scw  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     61       1.1      scw  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     62       1.1      scw  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     63       1.1      scw  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     64       1.1      scw  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     65       1.1      scw  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     66       1.1      scw  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     67       1.1      scw  */
     68      1.14    lukem 
     69      1.14    lukem #include <sys/cdefs.h>
     70  1.26.2.1     yamt __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.26.2.1 2006/05/24 10:56:47 yamt Exp $");
     71       1.1      scw 
     72       1.1      scw #include "opt_compat_netbsd.h"
     73       1.1      scw #include "opt_ddb.h"
     74       1.1      scw #include "opt_ipkdb.h"
     75       1.1      scw 
     76       1.1      scw #include <sys/param.h>
     77       1.1      scw #include <sys/buf.h>
     78       1.1      scw #include <sys/exec.h>
     79       1.1      scw #include <sys/malloc.h>
     80       1.1      scw #include <sys/mbuf.h>
     81       1.1      scw #include <sys/mount.h>
     82       1.1      scw #include <sys/msgbuf.h>
     83       1.1      scw #include <sys/proc.h>
     84       1.1      scw #include <sys/reboot.h>
     85       1.3  thorpej #include <sys/sa.h>
     86       1.1      scw #include <sys/syscallargs.h>
     87       1.1      scw #include <sys/syslog.h>
     88       1.1      scw #include <sys/systm.h>
     89       1.1      scw #include <sys/kernel.h>
     90       1.1      scw #include <sys/user.h>
     91       1.1      scw #include <sys/boot_flag.h>
     92       1.9    ragge #include <sys/ksyms.h>
     93       1.1      scw 
     94       1.1      scw #include <uvm/uvm_extern.h>
     95       1.1      scw 
     96       1.1      scw #include <net/netisr.h>
     97       1.1      scw 
     98  1.26.2.1     yamt #include <prop/proplib.h>
     99  1.26.2.1     yamt 
    100       1.1      scw #include <machine/bus.h>
    101       1.1      scw #include <machine/powerpc.h>
    102       1.1      scw #include <machine/trap.h>
    103       1.1      scw #include <machine/walnut.h>
    104       1.1      scw 
    105       1.1      scw #include <powerpc/spr.h>
    106       1.7  hannken #include <powerpc/ibm4xx/dcr405gp.h>
    107       1.1      scw #include <machine/bus.h>
    108       1.1      scw 
    109       1.1      scw #include <dev/cons.h>
    110       1.1      scw 
    111       1.9    ragge #include "ksyms.h"
    112       1.9    ragge 
    113       1.9    ragge #if defined(DDB)
    114       1.1      scw #include <machine/db_machdep.h>
    115       1.1      scw #include <ddb/db_extern.h>
    116       1.1      scw #endif
    117       1.1      scw 
    118       1.1      scw /*
    119       1.1      scw  * Global variables used here and there
    120       1.1      scw  */
    121       1.1      scw struct vm_map *exec_map = NULL;
    122       1.1      scw struct vm_map *mb_map = NULL;
    123       1.1      scw struct vm_map *phys_map = NULL;
    124       1.1      scw 
    125       1.1      scw /*
    126       1.1      scw  * This should probably be in autoconf!				XXX
    127       1.1      scw  */
    128       1.1      scw char cpu_model[80];
    129       1.1      scw char machine[] = MACHINE;		/* from <machine/param.h> */
    130       1.1      scw char machine_arch[] = MACHINE_ARCH;	/* from <machine/param.h> */
    131       1.1      scw 
    132       1.1      scw extern struct user *proc0paddr;
    133       1.1      scw 
    134       1.1      scw char bootpath[256];
    135       1.1      scw paddr_t msgbuf_paddr;
    136       1.1      scw vaddr_t msgbuf_vaddr;
    137       1.1      scw 
    138       1.9    ragge #if NKSYMS || defined(DDB) || defined(LKM)
    139       1.1      scw void *startsym, *endsym;
    140       1.1      scw #endif
    141       1.1      scw 
    142       1.1      scw int lcsplx(int);
    143       1.1      scw void initppc(u_int, u_int, char *, void *);
    144       1.1      scw 
    145       1.1      scw static void dumpsys(void);
    146       1.1      scw static void install_extint(void (*)(void));
    147       1.1      scw 
    148       1.1      scw #define MEMREGIONS	8
    149       1.1      scw struct mem_region physmemr[MEMREGIONS];		/* Hard code memory */
    150       1.1      scw struct mem_region availmemr[MEMREGIONS];	/* Who's supposed to set these up? */
    151       1.1      scw 
    152       1.1      scw struct board_cfg_data board_data;
    153       1.1      scw 
    154       1.1      scw void
    155       1.1      scw initppc(u_int startkernel, u_int endkernel, char *args, void *info_block)
    156       1.1      scw {
    157       1.1      scw 	extern int defaulttrap, defaultsize;
    158       1.1      scw 	extern int sctrap, scsize;
    159       1.1      scw 	extern int alitrap, alisize;
    160       1.1      scw 	extern int dsitrap, dsisize;
    161       1.1      scw 	extern int isitrap, isisize;
    162       1.1      scw 	extern int mchktrap, mchksize;
    163       1.1      scw 	extern int tlbimiss4xx, tlbim4size;
    164       1.1      scw 	extern int tlbdmiss4xx, tlbdm4size;
    165       1.1      scw 	extern int pitfitwdog, pitfitwdogsize;
    166       1.1      scw 	extern int debugtrap, debugsize;
    167       1.1      scw 	extern int errata51handler, errata51size;
    168       1.1      scw #ifdef DDB
    169       1.1      scw 	extern int ddblow, ddbsize;
    170       1.1      scw #endif
    171       1.1      scw #ifdef IPKDB
    172       1.1      scw 	extern int ipkdblow, ipkdbsize;
    173       1.1      scw #endif
    174      1.20   simonb 	int exc, dbcr0;
    175       1.6     matt 	struct cpu_info * const ci = curcpu();
    176       1.1      scw 
    177       1.1      scw 	/* Disable all external interrupts */
    178       1.1      scw 	mtdcr(DCR_UIC0_ER, 0);
    179       1.1      scw 
    180       1.1      scw         /* Initialize cache info for memcpy, etc. */
    181       1.1      scw         cpu_probe_cache();
    182       1.1      scw 
    183       1.1      scw 	/* Save info block */
    184       1.1      scw 	memcpy(&board_data, info_block, sizeof(board_data));
    185       1.1      scw 
    186       1.1      scw 	memset(physmemr, 0, sizeof physmemr);
    187       1.1      scw 	memset(availmemr, 0, sizeof availmemr);
    188       1.1      scw 	physmemr[0].start = 0;
    189       1.1      scw 	physmemr[0].size = board_data.mem_size & ~PGOFSET;
    190       1.1      scw 	/* Lower memory reserved by eval board BIOS */
    191       1.1      scw 	availmemr[0].start = startkernel;
    192       1.1      scw 	availmemr[0].size = board_data.mem_size - availmemr[0].start;
    193       1.1      scw 
    194       1.3  thorpej 	/*
    195       1.3  thorpej 	 * Initialize lwp0 and current pcb and pmap pointers.
    196       1.3  thorpej 	 */
    197       1.3  thorpej 	lwp0.l_cpu = ci;
    198       1.3  thorpej 	lwp0.l_addr = proc0paddr;
    199       1.3  thorpej 	memset(lwp0.l_addr, 0, sizeof *lwp0.l_addr);
    200       1.1      scw 
    201       1.1      scw 	curpcb = &proc0paddr->u_pcb;
    202      1.17     matt 	curpcb->pcb_pm = pmap_kernel();
    203       1.1      scw 
    204       1.1      scw 	/*
    205       1.1      scw 	 * Set up trap vectors
    206       1.1      scw 	 */
    207       1.1      scw 	for (exc = EXC_RSVD; exc <= EXC_LAST; exc += 0x100)
    208       1.1      scw 		switch (exc) {
    209       1.1      scw 		default:
    210       1.1      scw 			memcpy((void *)exc, &defaulttrap, (size_t)&defaultsize);
    211       1.1      scw 			break;
    212       1.1      scw 		case EXC_EXI:
    213       1.1      scw 			/*
    214       1.1      scw 			 * This one is (potentially) installed during autoconf
    215       1.1      scw 			 */
    216       1.1      scw 			break;
    217       1.1      scw 		case EXC_SC:
    218       1.1      scw 			memcpy((void *)EXC_SC, &sctrap, (size_t)&scsize);
    219       1.1      scw 			break;
    220       1.1      scw 		case EXC_ALI:
    221       1.1      scw 			memcpy((void *)EXC_ALI, &alitrap, (size_t)&alisize);
    222       1.1      scw 			break;
    223       1.1      scw 		case EXC_DSI:
    224       1.1      scw 			memcpy((void *)EXC_DSI, &dsitrap, (size_t)&dsisize);
    225       1.1      scw 			break;
    226       1.1      scw 		case EXC_ISI:
    227       1.1      scw 			memcpy((void *)EXC_ISI, &isitrap, (size_t)&isisize);
    228       1.1      scw 			break;
    229       1.1      scw 		case EXC_MCHK:
    230       1.1      scw 			memcpy((void *)EXC_MCHK, &mchktrap, (size_t)&mchksize);
    231       1.1      scw 			break;
    232       1.1      scw 		case EXC_ITMISS:
    233       1.1      scw 			memcpy((void *)EXC_ITMISS, &tlbimiss4xx,
    234       1.1      scw 				(size_t)&tlbim4size);
    235       1.1      scw 			break;
    236       1.1      scw 		case EXC_DTMISS:
    237       1.1      scw 			memcpy((void *)EXC_DTMISS, &tlbdmiss4xx,
    238       1.1      scw 				(size_t)&tlbdm4size);
    239       1.1      scw 			break;
    240       1.1      scw 		/*
    241       1.1      scw 		 * EXC_PIT, EXC_FIT, EXC_WDOG handlers
    242       1.1      scw 		 * are spaced by 0x10 bytes only..
    243       1.1      scw 		 */
    244       1.1      scw 		case EXC_PIT:
    245       1.1      scw 			memcpy((void *)EXC_PIT, &pitfitwdog,
    246       1.1      scw 				(size_t)&pitfitwdogsize);
    247       1.1      scw 			break;
    248       1.1      scw 		case EXC_DEBUG:
    249       1.1      scw 			memcpy((void *)EXC_DEBUG, &debugtrap,
    250       1.1      scw 				(size_t)&debugsize);
    251       1.1      scw 			break;
    252       1.1      scw 		case EXC_DTMISS|EXC_ALI:
    253       1.1      scw                         /* PPC405GP Rev D errata item 51 */
    254       1.1      scw 			memcpy((void *)(EXC_DTMISS|EXC_ALI), &errata51handler,
    255       1.1      scw 				(size_t)&errata51size);
    256       1.1      scw 			break;
    257       1.2  thorpej #if defined(DDB) || defined(IPKDB)
    258       1.1      scw 		case EXC_PGM:
    259       1.1      scw #if defined(DDB)
    260       1.1      scw 			memcpy((void *)exc, &ddblow, (size_t)&ddbsize);
    261       1.1      scw #elif defined(IPKDB)
    262       1.1      scw 			memcpy((void *)exc, &ipkdblow, (size_t)&ipkdbsize);
    263       1.1      scw #endif
    264       1.2  thorpej #endif /* DDB | IPKDB */
    265       1.1      scw 			break;
    266       1.1      scw 		}
    267       1.1      scw 
    268       1.1      scw 	__syncicache((void *)EXC_RST, EXC_LAST - EXC_RST + 0x100);
    269       1.1      scw 	mtspr(SPR_EVPR, 0);		/* Set Exception vector base */
    270       1.1      scw 	consinit();
    271       1.1      scw 
    272       1.1      scw 	/* Handle trap instruction as PGM exception */
    273      1.25    perry 	__asm volatile("mfspr %0,%1":"=r"(dbcr0):"K"(SPR_DBCR0));
    274      1.25    perry 	__asm volatile("mtspr %0,%1"::"K"(SPR_DBCR0),"r"(dbcr0 & ~DBCR0_TDE));
    275       1.1      scw 
    276       1.1      scw 	/*
    277       1.1      scw 	 * external interrupt handler install
    278       1.1      scw 	 */
    279       1.1      scw 	install_extint(ext_intr);
    280       1.1      scw 
    281       1.1      scw 	/*
    282       1.1      scw 	 * Now enable translation (and machine checks/recoverable interrupts).
    283       1.1      scw 	 */
    284      1.25    perry 	__asm volatile ("mfmsr %0; ori %0,%0,%1; mtmsr %0; isync"
    285       1.1      scw 		      : : "r"(0), "K"(PSL_IR|PSL_DR));
    286       1.1      scw 	/* XXXX PSL_ME - With ME set kernel gets stuck... */
    287       1.1      scw 
    288       1.1      scw 	uvm_setpagesize();
    289       1.1      scw 
    290       1.1      scw 	/*
    291       1.1      scw 	 * Initialize pmap module.
    292       1.1      scw 	 */
    293       1.1      scw 	pmap_bootstrap(startkernel, endkernel);
    294       1.1      scw 
    295       1.1      scw #ifdef DEBUG
    296       1.1      scw 	printf("Board config data:\n");
    297       1.1      scw 	printf("  usr_config_ver = %s\n", board_data.usr_config_ver);
    298       1.1      scw 	printf("  rom_sw_ver = %s\n", board_data.rom_sw_ver);
    299       1.1      scw 	printf("  mem_size = %u\n", board_data.mem_size);
    300       1.1      scw 	printf("  mac_address_local = %02x:%02x:%02x:%02x:%02x:%02x\n",
    301       1.1      scw 	    board_data.mac_address_local[0], board_data.mac_address_local[1],
    302       1.1      scw 	    board_data.mac_address_local[2], board_data.mac_address_local[3],
    303       1.1      scw 	    board_data.mac_address_local[4], board_data.mac_address_local[5]);
    304       1.1      scw 	printf("  mac_address_pci = %02x:%02x:%02x:%02x:%02x:%02x\n",
    305       1.1      scw 	    board_data.mac_address_pci[0], board_data.mac_address_pci[1],
    306       1.1      scw 	    board_data.mac_address_pci[2], board_data.mac_address_pci[3],
    307       1.1      scw 	    board_data.mac_address_pci[4], board_data.mac_address_pci[5]);
    308       1.1      scw 	printf("  processor_speed = %u\n", board_data.processor_speed);
    309       1.1      scw 	printf("  plb_speed = %u\n", board_data.plb_speed);
    310       1.1      scw 	printf("  pci_speed = %u\n", board_data.pci_speed);
    311       1.1      scw #endif
    312       1.1      scw 
    313       1.9    ragge #if NKSYMS || defined(DDB) || defined(LKM)
    314       1.9    ragge 	ksyms_init((int)((u_int)endsym - (u_int)startsym), startsym, endsym);
    315       1.9    ragge #endif
    316       1.1      scw #ifdef DDB
    317       1.1      scw 	if (boothowto & RB_KDB)
    318       1.1      scw 		Debugger();
    319       1.1      scw #endif
    320       1.1      scw #ifdef IPKDB
    321       1.1      scw 	/*
    322       1.1      scw 	 * Now trap to IPKDB
    323       1.1      scw 	 */
    324       1.1      scw 	ipkdb_init();
    325       1.1      scw 	if (boothowto & RB_KDB)
    326       1.1      scw 		ipkdb_connect(0);
    327       1.1      scw #endif
    328       1.1      scw }
    329       1.1      scw 
    330       1.1      scw static void
    331       1.1      scw install_extint(void (*handler)(void))
    332       1.1      scw {
    333       1.1      scw 	extern int extint, extsize;
    334       1.1      scw 	extern u_long extint_call;
    335       1.1      scw 	u_long offset = (u_long)handler - (u_long)&extint_call;
    336      1.13   simonb 	int msr;
    337       1.1      scw 
    338       1.1      scw #ifdef	DIAGNOSTIC
    339       1.1      scw 	if (offset > 0x1ffffff)
    340       1.1      scw 		panic("install_extint: too far away");
    341       1.1      scw #endif
    342      1.25    perry 	__asm volatile ("mfmsr %0; wrteei 0" : "=r"(msr));
    343       1.1      scw 	extint_call = (extint_call & 0xfc000003) | offset;
    344       1.1      scw 	memcpy((void *)EXC_EXI, &extint, (size_t)&extsize);
    345       1.1      scw 	__syncicache((void *)&extint_call, sizeof extint_call);
    346       1.1      scw 	__syncicache((void *)EXC_EXI, (int)&extsize);
    347      1.25    perry 	__asm volatile ("mtmsr %0" :: "r"(msr));
    348       1.1      scw }
    349       1.1      scw 
    350       1.1      scw /*
    351       1.1      scw  * Machine dependent startup code.
    352       1.1      scw  */
    353       1.1      scw 
    354       1.1      scw char msgbuf[MSGBUFSIZE];
    355       1.1      scw 
    356       1.1      scw void
    357       1.1      scw cpu_startup(void)
    358       1.1      scw {
    359       1.1      scw 	vaddr_t minaddr, maxaddr;
    360  1.26.2.1     yamt 	prop_number_t pn;
    361  1.26.2.1     yamt 	prop_data_t pd;
    362       1.1      scw 	char pbuf[9];
    363       1.1      scw 
    364       1.1      scw 	/*
    365       1.1      scw 	 * Initialize error message buffer (at end of core).
    366       1.1      scw 	 */
    367       1.1      scw #if 0	/* For some reason this fails... --Artem
    368       1.1      scw 	 * Besides, do we really have to put it at the end of core?
    369       1.1      scw 	 * Let's use static buffer for now
    370       1.1      scw 	 */
    371      1.22     yamt 	if (!(msgbuf_vaddr = uvm_km_alloc(kernel_map, round_page(MSGBUFSIZE), 0,
    372      1.22     yamt 	    UVM_KMF_VAONLY)))
    373       1.1      scw 		panic("startup: no room for message buffer");
    374       1.1      scw 	for (i = 0; i < btoc(MSGBUFSIZE); i++)
    375       1.8  thorpej 		pmap_kenter_pa(msgbuf_vaddr + i * PAGE_SIZE,
    376       1.8  thorpej 		    msgbuf_paddr + i * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE);
    377       1.1      scw 	initmsgbuf((caddr_t)msgbuf_vaddr, round_page(MSGBUFSIZE));
    378       1.1      scw #else
    379       1.1      scw 	initmsgbuf((caddr_t)msgbuf, round_page(MSGBUFSIZE));
    380       1.1      scw #endif
    381       1.1      scw 
    382      1.23    lukem 	printf("%s%s", copyright, version);
    383       1.1      scw 	printf("Walnut PowerPC 405GP Evaluation Board\n");
    384       1.1      scw 
    385       1.1      scw 	format_bytes(pbuf, sizeof(pbuf), ctob(physmem));
    386       1.1      scw 	printf("total memory = %s\n", pbuf);
    387       1.1      scw 
    388       1.1      scw 	minaddr = 0;
    389       1.1      scw 	/*
    390       1.1      scw 	 * Allocate a submap for exec arguments.  This map effectively
    391       1.1      scw 	 * limits the number of processes exec'ing at any time.
    392       1.1      scw 	 */
    393       1.1      scw 	exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
    394       1.1      scw 				 16*NCARGS, VM_MAP_PAGEABLE, FALSE, NULL);
    395       1.1      scw 
    396       1.1      scw 	/*
    397       1.1      scw 	 * Allocate a submap for physio
    398       1.1      scw 	 */
    399       1.1      scw 	phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
    400       1.1      scw 				 VM_PHYS_SIZE, 0, FALSE, NULL);
    401       1.1      scw 
    402       1.1      scw 	/*
    403       1.1      scw 	 * No need to allocate an mbuf cluster submap.  Mbuf clusters
    404       1.1      scw 	 * are allocated via the pool allocator, and we use direct-mapped
    405       1.1      scw 	 * pool pages.
    406       1.1      scw 	 */
    407       1.1      scw 
    408       1.1      scw 	format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free));
    409       1.1      scw 	printf("avail memory = %s\n", pbuf);
    410       1.1      scw 
    411       1.1      scw 	/*
    412  1.26.2.1     yamt 	 * Set up the board properties dictionary.
    413       1.1      scw 	 */
    414  1.26.2.1     yamt 	board_properties = prop_dictionary_create();
    415  1.26.2.1     yamt 	KASSERT(board_properties != NULL);
    416       1.1      scw 
    417  1.26.2.1     yamt 	pn = prop_number_create_integer(board_data.mem_size);
    418  1.26.2.1     yamt 	KASSERT(pn != NULL);
    419  1.26.2.1     yamt 	if (prop_dictionary_set(board_properties, "mem-size", pn) == FALSE)
    420       1.1      scw 		panic("setting mem-size");
    421  1.26.2.1     yamt 	prop_object_release(pn);
    422  1.26.2.1     yamt 
    423  1.26.2.1     yamt 	pd = prop_data_create_data_nocopy(board_data.mac_address_local,
    424  1.26.2.1     yamt 					  sizeof(board_data.mac_address_local));
    425  1.26.2.1     yamt 	KASSERT(pd != NULL);
    426  1.26.2.1     yamt 	if (prop_dictionary_set(board_properties, "emac0-mac-addr",
    427  1.26.2.1     yamt 				pd) == FALSE)
    428      1.26  thorpej 		panic("setting emac0-mac-addr");
    429  1.26.2.1     yamt 	prop_object_release(pd);
    430  1.26.2.1     yamt 
    431  1.26.2.1     yamt 	pd = prop_data_create_data_nocopy(board_data.mac_address_pci,
    432  1.26.2.1     yamt 					  sizeof(board_data.mac_address_pci));
    433  1.26.2.1     yamt 	KASSERT(pd != NULL);
    434  1.26.2.1     yamt 	if (prop_dictionary_set(board_properties, "sip0-mac-addr",
    435  1.26.2.1     yamt 				pd) == FALSE)
    436       1.1      scw 		panic("setting sip0-mac-addr");
    437  1.26.2.1     yamt 	prop_object_release(pd);
    438  1.26.2.1     yamt 
    439  1.26.2.1     yamt 	pn = prop_number_create_integer(board_data.processor_speed);
    440  1.26.2.1     yamt 	KASSERT(pn != NULL);
    441  1.26.2.1     yamt 	if (prop_dictionary_set(board_properties, "processor-frequency",
    442  1.26.2.1     yamt 				pn) == FALSE)
    443       1.1      scw 		panic("setting processor-frequency");
    444  1.26.2.1     yamt 	prop_object_release(pn);
    445      1.16      scw 
    446      1.16      scw 	/*
    447      1.16      scw 	 * Now that we have VM, malloc()s are OK in bus_space.
    448      1.16      scw 	 */
    449      1.16      scw 	bus_space_mallocok();
    450      1.16      scw 	fake_mapiodev = 0;
    451       1.1      scw }
    452       1.1      scw 
    453       1.1      scw 
    454       1.1      scw static void
    455       1.1      scw dumpsys(void)
    456       1.1      scw {
    457       1.1      scw 
    458       1.1      scw 	printf("dumpsys: TBD\n");
    459       1.1      scw }
    460       1.1      scw 
    461       1.1      scw /*
    462       1.1      scw  * Soft networking interrupts.
    463       1.1      scw  */
    464       1.1      scw void
    465       1.1      scw softnet(void)
    466       1.1      scw {
    467       1.1      scw 	int isr;
    468       1.1      scw 
    469       1.1      scw 	isr = netisr;
    470       1.1      scw 	netisr = 0;
    471       1.1      scw 
    472       1.1      scw #define DONETISR(bit, fn) do {		\
    473       1.1      scw 	if (isr & (1 << bit))		\
    474       1.1      scw 		fn();			\
    475       1.1      scw } while (0)
    476       1.1      scw 
    477       1.1      scw #include <net/netisr_dispatch.h>
    478       1.1      scw 
    479       1.1      scw #undef DONETISR
    480       1.1      scw 
    481       1.1      scw }
    482       1.1      scw 
    483       1.1      scw /*
    484       1.1      scw  * Soft tty interrupts.
    485       1.1      scw  */
    486      1.12   simonb #include "com.h"
    487       1.1      scw void
    488       1.1      scw softserial(void)
    489       1.1      scw {
    490       1.1      scw #if NCOM > 0
    491       1.1      scw 	void comsoft(void);	/* XXX from dev/ic/com.c */
    492       1.1      scw 
    493       1.1      scw 	comsoft();
    494       1.1      scw #endif
    495       1.1      scw }
    496       1.1      scw 
    497       1.1      scw /*
    498       1.1      scw  * Halt or reboot the machine after syncing/dumping according to howto.
    499       1.1      scw  */
    500       1.1      scw void
    501       1.1      scw cpu_reboot(int howto, char *what)
    502       1.1      scw {
    503       1.1      scw 	static int syncing;
    504       1.1      scw 	static char str[256];
    505       1.1      scw 	char *ap = str, *ap1 = ap;
    506       1.1      scw 
    507       1.1      scw 	boothowto = howto;
    508       1.1      scw 	if (!cold && !(howto & RB_NOSYNC) && !syncing) {
    509       1.1      scw 		syncing = 1;
    510       1.1      scw 		vfs_shutdown();		/* sync */
    511       1.1      scw 		resettodr();		/* set wall clock */
    512       1.1      scw 	}
    513       1.1      scw 
    514       1.1      scw 	splhigh();
    515       1.1      scw 
    516       1.1      scw 	if (!cold && (howto & RB_DUMP))
    517       1.1      scw 		dumpsys();
    518       1.1      scw 
    519       1.1      scw 	doshutdownhooks();
    520       1.1      scw 
    521       1.1      scw 	if ((howto & RB_POWERDOWN) == RB_POWERDOWN) {
    522       1.1      scw 	  /* Power off here if we know how...*/
    523       1.1      scw 	}
    524       1.1      scw 
    525       1.1      scw 	if (howto & RB_HALT) {
    526       1.1      scw 		printf("halted\n\n");
    527       1.1      scw 
    528       1.1      scw 		goto reboot;	/* XXX for now... */
    529       1.1      scw 
    530       1.1      scw #ifdef DDB
    531       1.1      scw 		printf("dropping to debugger\n");
    532       1.1      scw 		while(1)
    533       1.1      scw 			Debugger();
    534       1.1      scw #endif
    535       1.1      scw 	}
    536       1.1      scw 
    537       1.1      scw 	printf("rebooting\n\n");
    538       1.1      scw 	if (what && *what) {
    539       1.1      scw 		if (strlen(what) > sizeof str - 5)
    540       1.1      scw 			printf("boot string too large, ignored\n");
    541       1.1      scw 		else {
    542       1.1      scw 			strcpy(str, what);
    543       1.1      scw 			ap1 = ap = str + strlen(str);
    544       1.1      scw 			*ap++ = ' ';
    545       1.1      scw 		}
    546       1.1      scw 	}
    547       1.1      scw 	*ap++ = '-';
    548       1.1      scw 	if (howto & RB_SINGLE)
    549       1.1      scw 		*ap++ = 's';
    550       1.1      scw 	if (howto & RB_KDB)
    551       1.1      scw 		*ap++ = 'd';
    552       1.1      scw 	*ap++ = 0;
    553       1.1      scw 	if (ap[-2] == '-')
    554       1.1      scw 		*ap1 = 0;
    555       1.1      scw 
    556       1.1      scw 	/* flush cache for msgbuf */
    557       1.1      scw 	__syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE));
    558       1.1      scw 
    559       1.1      scw  reboot:
    560       1.1      scw 	ppc4xx_reset();
    561       1.1      scw 
    562       1.1      scw 	printf("ppc4xx_reset() failed!\n");
    563       1.1      scw #ifdef DDB
    564       1.1      scw 	while(1)
    565       1.1      scw 		Debugger();
    566       1.1      scw #else
    567       1.1      scw 	while (1)
    568       1.1      scw 		/* nothing */;
    569       1.1      scw #endif
    570       1.1      scw }
    571       1.1      scw 
    572       1.1      scw int
    573       1.1      scw lcsplx(int ipl)
    574       1.1      scw {
    575       1.1      scw 
    576       1.1      scw 	return spllower(ipl); 	/* XXX */
    577       1.1      scw }
    578       1.1      scw 
    579       1.1      scw void
    580       1.1      scw mem_regions(struct mem_region **mem, struct mem_region **avail)
    581       1.1      scw {
    582       1.1      scw 
    583       1.1      scw 	*mem = physmemr;
    584       1.1      scw 	*avail = availmemr;
    585       1.1      scw }
    586