1991/0827/gnot/mmu.c (diff list | history)

1991/0821/sys/src/9/gnot/mmu.c:143,149 – 1991/0827/sys/src/9/gnot/mmu.c:143,151 (short | long | prev | next)
1990/06021		kmap(Page *pg) { KMap *k;
1991/0827		int s;
1990/06021
1991/0827		s = splhi();
1990/06021		lock(&kmapalloc); k = kmapalloc.free;
1990/0709		if(k == 0){
1991/0821/sys/src/9/gnot/mmu.c:152,157 – 1991/0827/sys/src/9/gnot/mmu.c:154,160
1990/0709		}
1990/06021		kmapalloc.free = k->next; unlock(&kmapalloc);
1991/0827		splx(s);
1991/0821
1990/06021		k->pa = pg->pa; putkmmu(k->va, PPN(k->pa) | PTEVALID | PTEKERNEL);
1991/0821/sys/src/9/gnot/mmu.c:161,173 – 1991/0827/sys/src/9/gnot/mmu.c:164,180
1990/06021		void kunmap(KMap *k) {
1991/0827		int s;
1990/06021		k->pa = 0;
1991/0821		putkmmu(k->va, INVALIDPTE);
1991/0827		s = splhi();
1990/06021		lock(&kmapalloc); k->next = kmapalloc.free; kmapalloc.free = k; unlock(&kmapalloc);
1991/0827		splx(s);
1990/1211		} void