1992/0807/ss/main.c (diff list | history)

1992/0802/sys/src/9/ss/main.c:9,15 – 1992/0807/sys/src/9/ss/main.c:9,21 (short | long | prev | next)
Created. rsc Fri Mar 4 12:44:25 2005
1992/0211		#include <libg.h>
1990/1223		#include <gnot.h>
1991/0110		uchar *intrreg;
1992/0807		uchar *intrreg; int model; uchar idprom[32]; ulong romvec; /* open boot rom vector */ int cpuserver; ulong romputcxsegm; ulong bank[2];
1991/0110
1990/1223		void main(void)
1992/0802/sys/src/9/ss/main.c:23,34 – 1992/0807/sys/src/9/ss/main.c:29,43
1990/1223		confinit();
1992/0619		xinit();
1990/1226		mmuinit();
1991/0604		screeninit();
1992/0807		if(conf.monitor) screeninit();
1990/1226		printinit();
1992/0619		pageinit();
1990/1226		trapinit();
1990/1223		kmapinit();
1991/0604		ioinit();
1992/0807		if(!conf.monitor) sccspecial(2, &printq, &kbdq, 9600); pageinit();
1990/1226		cacheinit();
1991/0110		intrinit();
1990/1223		procinit0();
1992/0802/sys/src/9/ss/main.c:54,60 – 1992/0807/sys/src/9/ss/main.c:63,69
1991/0926		systemreset(void)
1990/1223		{ delay(100);
1990/1226		putb2(ENAB, ENABRESET);
1992/0807		putenab(ENABRESET);
1990/1223		}
1992/0802/sys/src/9/ss/main.c:98,103 – 1992/0807/sys/src/9/ss/main.c:107,113
1990/1223		u->p->mach = m; spllo();
1992/0722
1992/0807		print("bank 0: %dM 1: %dM\n", bank[0], bank[1]);
1990/1223		u->slash = (*devtab[0].attach)(0); u->dot = clone(u->slash, 0);
1992/0516
1992/0802/sys/src/9/ss/main.c:194,199 – 1992/0807/sys/src/9/ss/main.c:204,239
1991/0926		systemreset();
1990/1223		}
1992/0807		int banksize(ulong addr, ulong nbytes) { int i; ulong min, max, t; ulong va, pa; ulong nmeg; nmeg = nbytes/MB; va = 1*MB-2*BY2PG; for(i=0; i<nmeg; i++){ pa = addr+i*MB; putw4(va, PPN(pa)|PTEVALID|PTEKERNEL|PTENOCACHE|PTEWRITE|PTEMAINMEM); *(ulong*)va = pa; } min = ~0; max = 0; for(i=0; i<nmeg; i++){ pa = addr+i*MB; putw4(va, PPN(pa)|PTEVALID|PTEKERNEL|PTENOCACHE|PTEWRITE|PTEMAINMEM); t = *(ulong*)va; if(min > t) min = t; if(max < t) max = t; } putw4(va, INVALIDPTE); return (max-min)/MB+1; }
1990/1223		Conf conf; void
1992/0802/sys/src/9/ss/main.c:200,229 – 1992/0807/sys/src/9/ss/main.c:240,318
1990/1223		confinit(void) { int mul;
1992/0715		ulong ktop;
1992/0807		ulong i; ulong ktop, va, mbytes;
1990/1226
1990/1223		conf.nmach = 1; if(conf.nmach > MAXMACH) panic("confinit");
1992/0619
1992/0801		conf.ss2 = 0;
1991/0111		conf.npage0 = (4*1024*1024)/BY2PG; /* BUG */
1991/0115		conf.npage1 = (4*1024*1024)/BY2PG; /* BUG */
1990/1223		conf.base0 = 0;
1991/0112		conf.base1 = 32*1024*1024;
1990/1223		conf.npage = conf.npage0+conf.npage1;
1992/0807		/* map id prom */ va = 1*MB-BY2PG; putw4(va, PPN(EEPROM)|PTEVALID|PTEKERNEL|PTENOCACHE|PTEIO); memmove(idprom, (char*)(va+0x7d8), 32); if(idprom[0]!=1 || (idprom[1]&0xF0)!=0x50) *(ulong*)va = 0; putw4(va, INVALIDPTE);
1992/0619		conf.upages = 1400;
1992/0807		switch(idprom[1]){ case 0x51: /* sparcstation 1 */ case 0x54: /* slc */ default: conf.ss2 = 0; conf.vacsize = 65536; conf.vaclinesize = 16; conf.ncontext = 8; conf.npmeg = 128; conf.ss2cachebug = 0; conf.monitor = 1; /* BUG */ conf.base0 = 0; conf.base1 = 32*MB; break;
1992/0715
1992/0807		case 0x55: /* sparcstation 2 */ conf.ss2 = 1; conf.vacsize = 65536; conf.vaclinesize = 32; conf.ncontext = 16; conf.npmeg = 256; conf.ss2cachebug = 1; conf.monitor = 0; /* BUG */ conf.base0 = 0; conf.base1 = 16*MB; break; } bank[0] = banksize(conf.base0, 16*MB); bank[1] = banksize(conf.base1, 16*MB); conf.npage0 = (bank[0]*MB)/BY2PG; conf.npage1 = (bank[1]*MB)/BY2PG; romputcxsegm = *(ulong*)(romvec+260); conf.npage = conf.npage0+conf.npage1; conf.upages = (conf.npage*70)/100; if(cpuserver){ i = conf.npage-conf.upages; if(i > (6*MB)/BY2PG) conf.upages += i - ((6*MB)/BY2PG); }
1992/0715		ktop = PGROUND((ulong)end); ktop = PADDR(ktop); conf.npage0 -= ktop/BY2PG; conf.base0 += ktop;
1992/0619
1992/0620		mul = conf.upages/700;
1992/0807		mbytes = (conf.npage*BY2PG)>>20; mul = 1 + (mbytes+11)/12; if(mul > 2) mul = 2;
1992/0620
1990/1223		conf.nproc = 50*mul;
1991/0706		conf.nswap = 4096;
1992/0807		if(cpuserver) conf.nswap = conf.npage*2; else conf.nswap = 4096;
1991/0706		conf.nimage = 50;
1990/1223		conf.copymode = 0; /* copy on write */
1991/0926		conf.ipif = 8;
1992/0802/sys/src/9/ss/main.c:230,235 – 1992/0807/sys/src/9/ss/main.c:319,326
1991/0926		conf.ip = 64; conf.arp = 32; conf.frag = 32;
1992/0807		if(cpuserver) conf.nproc = 500;
1990/1231		} /*