1991/0115/ss/mmu.c (diff list | history)

1991/0112/sys/src/9/ss/mmu.c:69,82 – 1991/0115/sys/src/9/ss/mmu.c:69,80 (short | long | prev | next)
1991/0110		}
1990/1226		sp = m->pidproc[i]; if(sp){
1991/0115		if(sp)
1990/1226		sp->pidonmach[m->machno] = 0; purgepid(i); }
1991/0115		purgepid(i); /* also does putcontext */
1991/0110		pidtime[i] = m->ticks;
1990/1226		m->pidproc[i] = p; m->lastpid = i;
1990/1227		putcontext(i-1);
1991/0111
1990/1223		/*
1991/0112		* kludge: each context is allowed NKLUDGE pmegs.
1991/0112/sys/src/9/ss/mmu.c:96,102 – 1991/0115/sys/src/9/ss/mmu.c:94,99
1990/1226		void
1990/1231		putcontext(int c) {
1991/0110		m->pidhere[c+1] = 1;
1990/1231		putcxreg(c); }
1991/0112/sys/src/9/ss/mmu.c:115,123 – 1991/0115/sys/src/9/ss/mmu.c:112,117
1991/0110		void purgepid(int pid) {
1990/1226		if(m->pidhere[pid] == 0) return; memset(m->pidhere, 0, sizeof m->pidhere); putcontext(pid-1);
1991/0110		flushcontext();
1990/1223		}
1991/0112/sys/src/9/ss/mmu.c:233,240 – 1991/0115/sys/src/9/ss/mmu.c:227,233
1991/0112		/* * Prepare mmu up to this address */ tp--; /* now tp==context */ tp = tp*NKLUDGE;
1991/0115		tp = (tp-1)*NKLUDGE; /* now tp==base of pmeg area for this proc */
1991/0112		l = UZERO+p->nmmuseg*BY2SEGM; for(j=p->nmmuseg; j<=seg; j++){ putsegm(l, kmapalloc.lowpmeg+tp+j);
1991/0112/sys/src/9/ss/mmu.c:260,267 – 1991/0115/sys/src/9/ss/mmu.c:253,258
1990/1227		*/
1991/0110		for(i=0; i<0x100; i+=16) putwD16(virt+(i<<4), 0);
1990/1231		if(u && u->p) m->pidhere[u->p->pidonmach[m->machno]] = 1; /* UGH! */
1990/1227		putw4(virt, phys); }