marius 78ee2961aa - Currently the PMAP code is laid out to let the kernel TSB cover the
whole KVA space using one locked 4MB dTLB entry per GB of physical
  memory. On Cheetah-class machines only the dt16 can hold locked
  entries though, which would be completely consumed for the kernel
  TSB on machines with >= 16GB. Therefore limit the KVA space to use
  no more than half of the lockable dTLB slots, given that we need
  them also for other things.
- Add sanity checks which ensure that we don't exhaust the (lockable)
  TLB slots.
2009-01-01 14:01:21 +00:00
..