Module Name:	syssrc
Committed By:	thorpej
Date:		Sun Nov 28 19:53:11 UTC 1999

Modified Files:
	syssrc/sys/arch/alpha/alpha: pmap.c
	syssrc/sys/arch/alpha/include: pmap.h

Log Message:
- Use alpha_atomic_{add,sub}_q() to update the pmap statistics.  We now no
  longer need to lock the kernel pmap in pmap_kenter_pa() and pmap_kremove().
- Since locking the kernel pmap in interrupt context is no longer required,
  don't go to splimp() when locking the kernel pmap.
- Implement a new pmap_remove() function, not yet enabled by default.  It
  is structured like pmap_protect, and should be *much* faster.  This was
  actually written quite some time ago, but never committed because it
  didn't work properly.  Given the recent bugfix to pmap_protect(), "duh,
  of course it didn't work properly before...".  It seems to work fine now
  (have done several builds and run the UVM regression tests using the new
  code), but it is currently run-time optional so that some performance
  measurements can be easily run against the old and new code.


To generate a diff of this commit:
cvs rdiff -r1.117 -r1.118 syssrc/sys/arch/alpha/alpha/pmap.c
cvs rdiff -r1.31 -r1.32 syssrc/sys/arch/alpha/include/pmap.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.