1990/0709/gnot/mmu.c (diff list | history)

1990/0603/sys/src/9/gnot/mmu.c:63,69 – 1990/0709/sys/src/9/gnot/mmu.c:63,69 (short | long | prev | next)
1990/06021		if(kmapalloc.init == 0){ k = &kmapalloc.arena[0]; k->va = KZERO|(3*1024*1024);
1990/0709		k->va = KZERO|(4*1024*1024-256*1024-BY2PG);
1990/06021		k->next = 0; kmapalloc.free = k; kmapalloc.init = 1;
1990/0603/sys/src/9/gnot/mmu.c:71,76 – 1990/0709/sys/src/9/gnot/mmu.c:71,77
1990/06021		} e = (4*1024*1024 - 256*1024)/BY2PG; /* screen lives at top 256K */ i = (((ulong)ialloc(0, 0))&~KZERO)/BY2PG;
1990/0709		print("%lud free map registers\n", e-i);
1990/06021		kmapalloc.free = 0; for(k=&kmapalloc.arena[i]; i<e; i++,k++){ k->va = i*BY2PG|KZERO;
1990/0603/sys/src/9/gnot/mmu.c:85,92 – 1990/0709/sys/src/9/gnot/mmu.c:86,95
1990/06021		lock(&kmapalloc); k = kmapalloc.free; if(k == 0)
1990/0709		if(k == 0){ dumpstack();
1990/06021		panic("kmap");
1990/0709		}
1990/06021		kmapalloc.free = k->next; unlock(&kmapalloc); k->pa = pg->pa;