1992/0625/gnot/mmu.c (diff list | history)

1992/0622/sys/src/9/gnot/mmu.c:81,88 – 1992/0625/sys/src/9/gnot/mmu.c:81,89 (short | long | prev | next)
1990/06021		void kmapinit(void) {
1992/0625		int i; Page *p;
1990/06021		KMap *k; int i, e; if(kmapalloc.init == 0){ k = &kmapalloc.arena[0];
1992/0622/sys/src/9/gnot/mmu.c:93,108 – 1992/0625/sys/src/9/gnot/mmu.c:94,110
1990/06021		return; }
1991/0821		e = (MB4 - 256*1024)/BY2PG; /* screen lives at top 256K */
1992/0315		i = PGROUND(palloc.addr0)/BY2PG;
1991/0821
1990/0709		print("%lud free map registers\n", e-i);
1991/0821
1990/06021		kmapalloc.free = 0;
1992/0622		for(k=&kmapalloc.arena[i]; i < e; i++){
1990/06021		k->va = i*BY2PG|KZERO;
1992/0622		kunmap(k++);
1992/0625		i = 0; /* Reclaim map register for pages in bank0 */ for(p = palloc.head; p; p = p->next) { if(p->pa < MB4) { k = &kmapalloc.arena[p->pa/BY2PG]; k->va = p->pa|KZERO; kunmap(k); i++; }
1990/06021		}
1992/0625		print("%lud free map registers\n", i);
1990/06021		} KMap*