K 10
svn:author
V 6
marius
K 8
svn:date
V 27
2009-03-19T16:37:30.817727Z
K 7
svn:log
V 536
MFC: r186682

- 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.

END