1991/1218/gnot/fault68020.c (diff list | history)

1990/1212/sys/src/9/gnot/fault68020.c:45,59 – 1990/1214/sys/src/9/gnot/fault68020.c:45,52 (short | long)
1990/1212		void fault68020(Ureg *ur, FFrame *f) { ulong addr, mmuvirt, mmuphys, n, badvaddr; Seg *s; PTE *opte, *pte, *npte; Orig *o; char *l; Page *pg; KMap *k, *k1; int zeroed = 0, head = 1; int i, user, read, insyscall;
1990/1214		ulong addr, badvaddr; int user, read, insyscall;
1990/1212		if(u == 0){ dumpregs(ur);
1990/1214/sys/src/9/gnot/fault68020.c:73,86 – 1991/0705/sys/src/9/gnot/fault68020.c:73,89 (short | long)
1990/1212		panic("prefetch pagefault"); }else panic("prefetch format");
1991/0705
1990/1212		addr &= VAMASK; badvaddr = addr; addr &= ~(BY2PG-1); user = !(ur->sr&SUPER);
1991/0705
1990/1212		if(f->ssw & DF) read = (f->ssw&READ) && !(f->ssw&RM); else read = f->ssw&(FB|FC);
1991/0705
1990/1212		/* print("fault pc=%lux addr=%lux read %d\n", ur->pc, badvaddr, read); /**/ if(fault(addr, read) < 0){
1991/0705/sys/src/9/gnot/fault68020.c:89,95 – 1991/0710/sys/src/9/gnot/fault68020.c:89,95 (short | long)
1990/1212		if(fault(addr, read) < 0){ if(user){ pprint("user %s error addr=0x%lux\n", read? "read" : "write", badvaddr); pprint("status=0x%lux pc=0x%lux sp=0x%lux\n", ur->sr, ur->pc, ur->sp);
1991/0710		pprint("status=0x%lux pc=0x%lux sp=0x%lux\n", ur->sr, ur->pc, ur->usp);
1990/1212		pexit("Suicide", 0); } u->p->state = MMUing;
1991/0710/sys/src/9/gnot/fault68020.c:47,52 – 1991/0719/sys/src/9/gnot/fault68020.c:47,53 (short | long)
1990/1212		{
1990/1214		ulong addr, badvaddr; int user, read, insyscall;
1991/0719		char buf[ERRLEN];
1990/1212		if(u == 0){ dumpregs(ur);
1991/0710/sys/src/9/gnot/fault68020.c:88,96 – 1991/0719/sys/src/9/gnot/fault68020.c:89,99
1990/1212		if(fault(addr, read) < 0){ if(user){ pprint("user %s error addr=0x%lux\n", read? "read" : "write", badvaddr);
1991/0710		pprint("status=0x%lux pc=0x%lux sp=0x%lux\n", ur->sr, ur->pc, ur->usp);
1990/1212		pexit("Suicide", 0);
1991/0719		sprint(buf, "sys: fault %s pc=0x%lux addr=0x%lux", read? "read" : "write", ur->pc, badvaddr); postnote(u->p, 1, buf, NDebug); notify(ur); return;
1990/1212		} u->p->state = MMUing; dumpregs(ur);
1991/0719/sys/src/9/gnot/fault68020.c:95,101 – 1991/0926/sys/src/9/gnot/fault68020.c:95,100 (short | long)
1991/0719		notify(ur); return;
1990/1212		} u->p->state = MMUing; dumpregs(ur); panic("fault: 0x%lux", badvaddr); exit();
1991/0926/sys/src/9/gnot/fault68020.c:92,97 – 1991/1108/sys/src/9/gnot/fault68020.c:92,99 (short | long)
1991/0719		sprint(buf, "sys: fault %s pc=0x%lux addr=0x%lux", read? "read" : "write", ur->pc, badvaddr); postnote(u->p, 1, buf, NDebug);
1991/1108		if(u->p->procctl) procctl(u->p);
1991/0719		notify(ur); return;
1990/1212		}
1991/1108/sys/src/9/gnot/fault68020.c:55,60 – 1991/1112/sys/src/9/gnot/fault68020.c:55,61 (short | long)
1990/1212		} insyscall = u->p->insyscall; u->p->insyscall = 1;
1991/1112		u->dbgreg = ur;
1990/1212		addr = 0; /* set */ if(f->ssw & DF) addr = f->addr;
1991/1108/sys/src/9/gnot/fault68020.c:92,99 – 1991/1112/sys/src/9/gnot/fault68020.c:93,98
1991/0719		sprint(buf, "sys: fault %s pc=0x%lux addr=0x%lux", read? "read" : "write", ur->pc, badvaddr); postnote(u->p, 1, buf, NDebug);
1991/1108		if(u->p->procctl) procctl(u->p);
1991/0719		notify(ur); return;
1990/1212		}
1991/1112/sys/src/9/gnot/fault68020.c:90,97 – 1991/1218/sys/src/9/gnot/fault68020.c:90,97 (short | long)
1990/1212		if(fault(addr, read) < 0){ if(user){
1991/0719		sprint(buf, "sys: fault %s pc=0x%lux addr=0x%lux", read? "read" : "write", ur->pc, badvaddr);
1991/1218		sprint(buf, "sys: trap: fault %s addr=0x%lux", read? "read" : "write", badvaddr);
1991/0719		postnote(u->p, 1, buf, NDebug); notify(ur); return;
1991/1218/sys/src/9/gnot/fault68020.c:4,10 – 1992/0111/sys/src/9/gnot/fault68020.c:4,10 (short | long)
Move error.h to ../port. Change errors to actual strings. rsc Fri Mar 4 12:44:25 2005
1990/1212		#include "dat.h" #include "fns.h" #include "ureg.h" #include "errno.h"
1992/0111		#include "../port/error.h"
1990/1212		#define FORMAT(ur) ((((ur)->vo)>>12)&0xF) #define OFFSET(ur) (((ur)->vo)&0xFFF)
1992/0111/sys/src/9/gnot/fault68020.c:55,61 – 1992/0201/sys/src/9/gnot/fault68020.c:55,60 (short | long)
1990/1212		} insyscall = u->p->insyscall; u->p->insyscall = 1;
1991/1112		u->dbgreg = ur;
1990/1212		addr = 0; /* set */ if(f->ssw & DF) addr = f->addr;
1992/0111/sys/src/9/gnot/fault68020.c:80,85 – 1992/0201/sys/src/9/gnot/fault68020.c:79,86
1990/1212		badvaddr = addr; addr &= ~(BY2PG-1); user = !(ur->sr&SUPER);
1992/0201		if(user) u->dbgreg = ur;
1991/0705
1990/1212		if(f->ssw & DF) read = (f->ssw&READ) && !(f->ssw&RM);
1992/0201/sys/src/9/gnot/fault68020.c:1,5 – 1992/0321/sys/src/9/gnot/fault68020.c:1,5 (short | long)
Move lib.h to ../port. rsc Fri Mar 4 12:44:25 2005
1990/1212		#include "u.h" #include "lib.h"
1992/0321		#include "../port/lib.h"
1990/1212		#include "mem.h" #include "dat.h" #include "fns.h"
1992/0321/sys/src/9/gnot/fault68020.c:99,105 – 1992/0812/sys/src/9/gnot/fault68020.c:99,104 (short | long)
1990/1212		} dumpregs(ur); panic("fault: 0x%lux", badvaddr); exit(); } u->p->insyscall = insyscall; }
1992/0812/sys/src/9/gnot/fault68020.c:1,104 – 1993/0501/sys/src/9/gnot/fault68020.c:0 (short | long)
Deleted. rsc Mon Mar 7 10:21:44 2005
1990/1212		#include "u.h"
1992/0321		#include "../port/lib.h"
1990/1212		#include "mem.h" #include "dat.h" #include "fns.h" #include "ureg.h"
1992/0111		#include "../port/error.h"
1990/1212		#define FORMAT(ur) ((((ur)->vo)>>12)&0xF) #define OFFSET(ur) (((ur)->vo)&0xFFF)                                   struct FFrame { ushort ireg0; /* internal register */ ushort ssw; /* special status word */ ushort ipsc; /* instr. pipe stage c */ ushort ipsb; /* instr. pipe stage b */ ulong addr; /* data cycle fault address */ ushort ireg1; /* internal register */ ushort ireg2; /* internal register */ ulong dob; /* data output buffer */ ushort ireg3[4]; /* more stuff */ ulong baddr; /* stage b address */ ushort ireg4[26]; /* more more stuff */ };                  /* * SSW bits */ #define RW 0x0040 /* read/write for data cycle */ #define FC 0x8000 /* fault on stage C of instruction pipe */ #define FB 0x4000 /* fault on stage B of instruction pipe */ #define RC 0x2000 /* rerun flag for stage C of instruction pipe */ #define RB 0x1000 /* rerun flag for stage B of instruction pipe */ #define DF 0x0100 /* fault/rerun flag for data cycle */ #define RM 0x0080 /* read-modify-write on data cycle */ #define READ 0x0040 #define WRITE 0x0000 #define SIZ 0x0030 /* size code for data cycle */ #define FC2 0x0004 /* address space for data cycle */ #define FC1 0x0002 #define FC0 0x0001                  void fault68020(Ureg *ur, FFrame *f) {
1990/1214		ulong addr, badvaddr; int user, read, insyscall;
1991/0719		char buf[ERRLEN];
1990/1212		if(u == 0){ dumpregs(ur); panic("fault u==0 pc=%lux", ur->pc); } insyscall = u->p->insyscall; u->p->insyscall = 1; addr = 0; /* set */ if(f->ssw & DF) addr = f->addr; else if(FORMAT(ur) == 0xA){ if(f->ssw & FC) addr = ur->pc+2; else if(f->ssw & FB) addr = ur->pc+4; else panic("prefetch pagefault"); }else if(FORMAT(ur) == 0xB){ if(f->ssw & FC) addr = f->baddr-2; else if(f->ssw & FB) addr = f->baddr; else panic("prefetch pagefault"); }else panic("prefetch format");
1991/0705
1990/1212		addr &= VAMASK; badvaddr = addr; addr &= ~(BY2PG-1); user = !(ur->sr&SUPER);
1992/0201		if(user) u->dbgreg = ur;
1991/0705
1990/1212		if(f->ssw & DF) read = (f->ssw&READ) && !(f->ssw&RM); else read = f->ssw&(FB|FC);
1991/0705
1990/1212		/* print("fault pc=%lux addr=%lux read %d\n", ur->pc, badvaddr, read); /**/                  if(fault(addr, read) < 0){ if(user){
1991/1218		sprint(buf, "sys: trap: fault %s addr=0x%lux", read? "read" : "write", badvaddr);
1991/0719		postnote(u->p, 1, buf, NDebug); notify(ur); return;
1990/1212		} dumpregs(ur); panic("fault: 0x%lux", badvaddr); } u->p->insyscall = insyscall; }