2002/0109/pc/main.c (diff list | history)

2001/1011/sys/src/9/pc/main.c:7,33 – 2002/0109/sys/src/9/pc/main.c:7,34 (short | long | prev | next)
1991/0716		#include "ureg.h" #include "init.h"
1997/1101		#include "pool.h"
2002/0109		#include "reboot.h"
1991/0629
1997/0327		Mach *m;
1992/0904
1997/0327		static uchar *sp; /* stack pointer for /boot */
1992/0903
1997/0327		/* * Where configuration info is left for the loaded programme. * This will turn into a structure as more is done by the boot loader * (e.g. why parse the .ini file twice?).
2000/0721		* There are XXX bytes available at CONFADDR.
2002/0109		* There are 3584 bytes available at CONFADDR.
1997/0327		*/
1997/0329		#define BOOTLINE ((char*)CONFADDR)
1997/0327		#define BOOTLINELEN 64 #define BOOTARGS ((char*)(CONFADDR+BOOTLINELEN))
2000/0721		#define BOOTARGSLEN (4096-0x200-BOOTLINELEN)
1993/0330		#define MAXCONF 32
2002/0109		#define MAXCONF 64
1993/0330
2001/0527		char bootdisk[KNAMELEN];
2002/0109		Conf conf;
1993/0330		char *confname[MAXCONF]; char *confval[MAXCONF]; int nconf;
2002/0109		uchar *sp; /* user stack of init proc */
1993/0330
1997/0327		static void
1997/0403		options(void)
2001/1011/sys/src/9/pc/main.c:71,88 – 2002/0109/sys/src/9/pc/main.c:72,87
1991/0716		void
1991/0702		main(void)
1991/0625		{
1997/0327		conf.nmach = 1; MACHP(0) = (Mach*)CPU0MACH;
1997/1101		m->pdb = (ulong*)CPU0PDB;
1991/0711		machinit();
1991/1113		active.machs = 1;
1997/0327		active.exiting = 0;
2002/0109		mach0init();
1997/0403		options();
2001/0527		ioinit(); i8250console();
2002/0109
2001/0527		print("\nPlan 9\n");
2002/0109
1997/0327		cpuidentify();
2001/0527		screeninit();
2002/0109		meminit();
1991/0711		confinit();
1997/0329		archinit();
1992/0625		xinit();
2001/1011/sys/src/9/pc/main.c:108,113 – 2002/0109/sys/src/9/pc/main.c:107,125
1991/0712		}
1991/0706
1991/0716		void
2002/0109		mach0init(void) { conf.nmach = 1; MACHP(0) = (Mach*)CPU0MACH; m->pdb = (ulong*)CPU0PDB; machinit(); active.machs = 1; active.exiting = 0; } void
1991/0716		machinit(void)
1991/0712		{
1997/0327		int machno;
2001/1011/sys/src/9/pc/main.c:129,147 – 2002/0109/sys/src/9/pc/main.c:141,150
1991/0625		}
1991/0716		void
1993/1013		ksetterm(char *f) {
2001/0527		char buf[2*KNAMELEN];
1993/1013		sprint(buf, f, conffile); ksetenv("terminal", buf); }                  void
1991/0716		init0(void)
1991/0712		{
1993/0330		int i;
1992/0918		char tstr[32];
2002/0109		char buf[2*KNAMELEN];
1992/0918
1993/0915		up->nerrlab = 0;
1991/0712
2001/1011/sys/src/9/pc/main.c:159,175 – 2002/0109/sys/src/9/pc/main.c:162,176
1991/0716		chandevinit();
1991/0926		if(!waserror()){
1992/0923		strcpy(tstr, arch->id);
1992/0918		strcat(tstr, " %s"); ksetterm(tstr);
1991/0927		ksetenv("cputype", "386");
2002/0109		snprint(buf, sizeof(buf), "%s %s", arch->id, conffile); ksetenv("terminal", buf, 0); ksetenv("cputype", "386", 0);
1997/0329		if(cpuserver) ksetenv("service", "cpu");
2002/0109		ksetenv("service", "cpu", 0);
1997/0329		else ksetenv("service", "terminal");
2002/0109		ksetenv("service", "terminal", 0);
1993/0915		for(i = 0; i < nconf; i++)
1997/0329		if(confname[i] && confname[i][0] != '*')
1993/0915		ksetenv(confname[i], confval[i]);
2002/0109		ksetenv(confname[i], confval[i], 1);
1991/0926		poperror(); }
1993/0915		kproc("alarm", alarmkproc, 0);
2001/1011/sys/src/9/pc/main.c:260,265 – 2002/0109/sys/src/9/pc/main.c:261,268
1992/0323		ac = 0;
1994/0219		av[ac++] = pusharg("/386/9dos");
2002/0109		/* when boot is changed to only use rc, this code can go away */
1997/0327		cp[BOOTLINELEN-1] = 0;
1993/0915		buf[0] = 0;
2000/0518		if(strncmp(cp, "fd", 2) == 0){
2001/1011/sys/src/9/pc/main.c:270,282 – 2002/0109/sys/src/9/pc/main.c:273,278
1993/0915		av[ac++] = pusharg(buf);
2000/0531		} else if(strncmp(cp, "ether", 5) == 0)
1994/1111		av[ac++] = pusharg("-n");
1993/0915		if(buf[0]){ cp = strchr(buf, '!'); if(cp){ strcpy(bootdisk, cp+1); addconf("bootdisk", bootdisk); } }
1992/0323		/* 4 byte word align stack */ sp = (uchar*)((ulong)sp & ~3);
2001/1011/sys/src/9/pc/main.c:290,307 – 2002/0109/sys/src/9/pc/main.c:286,291
1992/0323		sp += (USTKTOP - BY2PG) - base - sizeof(ulong);
1991/0711		}
1991/0716		Conf conf;
1991/0711		void
1993/0915		addconf(char *name, char *val) { if(nconf >= MAXCONF) return; confname[nconf] = name; confval[nconf] = val; nconf++; }                  char* getconf(char *name) {
2001/1011/sys/src/9/pc/main.c:313,336 – 2002/0109/sys/src/9/pc/main.c:297,343
1993/0915		return 0; }
2002/0109		static void writeconf(void) { char *p, *q; int n; p = getconfenv(); if(waserror()) { free(p); nexterror(); } /* convert to name=value\n format */ for(q=p; *q; q++) { q += strlen(q); *q = '='; q += strlen(q); *q = '\n'; } n = q - p + 1; if(n >= BOOTARGSLEN) error("kernel configuration too large"); memset(BOOTLINE, 0, BOOTLINELEN); memmove(BOOTARGS, p, n); poperror(); free(p); }
1994/1210		void
1991/0711		confinit(void) {
1997/0403		char *p;
1999/1109		int userpcnt;
1998/1120		ulong kpages, maxmem;
2002/0109		ulong kpages;
1991/0711
1997/0403		if(p = getconf("*maxmem")) maxmem = strtoul(p, 0, 0); else maxmem = 0; if(p = getconf("*kernelpercent"))
1998/1120		userpcnt = 100 - strtol(p, 0, 0);
1997/0403		else
1998/1120		userpcnt = 0;
1994/0814
1997/0329		meminit(maxmem);
1993/0915
1991/0711		conf.npage = conf.npage0 + conf.npage1;
1998/1124		conf.nproc = 100 + ((conf.npage*BY2PG)/MB)*5;
2001/1011/sys/src/9/pc/main.c:556,563 – 2002/0109/sys/src/9/pc/main.c:563,570
1998/0605		mmuflushtlb(PADDR(m->pdb));
1991/0712		}
1991/0716		void
1997/0327		exit(int ispanic)
2002/0109		static void shutdown(int ispanic)
1991/0712		{
1997/0327		int ms, once;
1991/0712
2001/1011/sys/src/9/pc/main.c:588,594 – 2002/0109/sys/src/9/pc/main.c:595,650
1997/0327		} else
1996/01171		delay(1000);
2002/0109		}
1992/0903
2002/0109		void reboot(void *entry, void *code, ulong size) { void (*f)(ulong, ulong, ulong); ulong *pdb; writeconf(); shutdown(0); /* * should be the only processor running now */ print("shutting down...\n"); delay(200); splhi(); /* turn off buffered serial console */ serialoq = nil; /* shutdown devices */ chandevshutdown(); /* * Modify the machine page table to directly map the low 4MB of memory * This allows the reboot code to turn off the page mapping */ pdb = m->pdb; pdb[PDX(0)] = pdb[PDX(KZERO)]; mmuflushtlb(PADDR(pdb)); /* setup reboot trampoline function */ f = (void*)REBOOTADDR; memmove(f, rebootcode, sizeof(rebootcode)); print("rebooting...\n"); /* off we go - never to return */ (*f)(PADDR(entry), PADDR(code), size); } void exit(int ispanic) { shutdown(ispanic);
1997/0327		arch->reset();
1991/0803		}
2001/1011/sys/src/9/pc/main.c:596,628 – 2002/0109/sys/src/9/pc/main.c:652,683
1993/0915		isaconfig(char *class, int ctlrno, ISAConf *isa) {
2001/0527		char cc[32], *p; int i, n;
2002/0109		int i;
1993/0915
2001/0527		snprint(cc, sizeof cc, "%s%d", class, ctlrno);
1993/0915		for(n = 0; n < nconf; n++){
2001/0527		if(cistrcmp(confname[n], cc) != 0)
1993/0915		continue;
2001/0527		isa->nopt = tokenize(confval[n], isa->opt, NISAOPT); for(i = 0; i < isa->nopt; i++){ p = isa->opt[i]; if(cistrncmp(p, "type=", 5) == 0) isa->type = p + 5;
1997/0327		else if(cistrncmp(p, "port=", 5) == 0)
1993/0915		isa->port = strtoul(p+5, &p, 0);
1997/0327		else if(cistrncmp(p, "irq=", 4) == 0)
1993/0915		isa->irq = strtoul(p+4, &p, 0);
1997/0327		else if(cistrncmp(p, "dma=", 4) == 0)
1996/0425		isa->dma = strtoul(p+4, &p, 0);
1997/0327		else if(cistrncmp(p, "mem=", 4) == 0)
1993/0915		isa->mem = strtoul(p+4, &p, 0);
1997/0327		else if(cistrncmp(p, "size=", 5) == 0)
1993/0915		isa->size = strtoul(p+5, &p, 0);
1997/0327		else if(cistrncmp(p, "freq=", 5) == 0)
1994/0823		isa->freq = strtoul(p+5, &p, 0);
1993/0915		} return 1;
2002/0109		p = getconf(cc); if(p == nil) return 0; isa->nopt = tokenize(p, isa->opt, NISAOPT); for(i = 0; i < isa->nopt; i++){ p = isa->opt[i]; if(cistrncmp(p, "type=", 5) == 0) isa->type = p + 5; else if(cistrncmp(p, "port=", 5) == 0) isa->port = strtoul(p+5, &p, 0); else if(cistrncmp(p, "irq=", 4) == 0) isa->irq = strtoul(p+4, &p, 0); else if(cistrncmp(p, "dma=", 4) == 0) isa->dma = strtoul(p+4, &p, 0); else if(cistrncmp(p, "mem=", 4) == 0) isa->mem = strtoul(p+4, &p, 0); else if(cistrncmp(p, "size=", 5) == 0) isa->size = strtoul(p+5, &p, 0); else if(cistrncmp(p, "freq=", 5) == 0) isa->freq = strtoul(p+5, &p, 0);
1993/0915		} return 0;
2002/0109		return 1;
1991/0803		}
1995/0222		int