1990/1211/port/proc.c (diff list | history)

1990/1124/sys/src/9/port/proc.c:52,58 – 1990/1211/sys/src/9/port/proc.c:52,58 (short | long | prev | next)
Add invalidateu function, save, restore, clearmmucache. rsc Mon Mar 20 17:14:06 2006
1990/0227		if(u){ m->proc = 0; p = u->p; puttlbx(0, KZERO | PTEPID(0), 0); /* safety first */
1990/1211		invalidateu(); /* safety first */
1990/0227		u = 0; if(p->state == Running) ready(p);
1990/1124/sys/src/9/port/proc.c:76,81 – 1990/1211/sys/src/9/port/proc.c:76,82
1990/0227		void sched(void) {
1990/1211		uchar procstate[64]; /* sleeze for portability */
1990/0227		Proc *p; ulong tlbvirt, tlbphys;
1990/0731		void (*f)(ulong, ulong);
1990/1124/sys/src/9/port/proc.c:82,92 – 1990/1211/sys/src/9/port/proc.c:83,95
1990/0227		if(u){ splhi();
1990/1211		save(procstate, sizeof(procstate));
1990/0227		if(setlabel(&u->p->sched)){ /* woke up */ p = u->p; p->state = Running; p->mach = m; m->proc = p;
1990/1211		restore(p, procstate);
1990/0227		spllo(); return; }
1990/1124/sys/src/9/port/proc.c:132,138 – 1990/1211/sys/src/9/port/proc.c:135,141
1990/0227		loop: while(runq.head == 0) for(i=0; i<10; i++)
1990/1211		for(i=0; i<10; i++) /* keep out of shared memory for a while */
1990/0227		; splhi(); lock(&runq);
1990/1124/sys/src/9/port/proc.c:573,578 – 1990/1211/sys/src/9/port/proc.c:576,582
1990/0227		/* * Save time: only copy u-> data and useful stack */
1990/1211		clearmmucache();
1990/0617		memcpy(up, u, sizeof(User));
1990/0227		n = USERADDR+BY2PG - (ulong)&lastvar; n = (n+32) & ~(BY2WD-1); /* be safe & word align */