thorpej
Thu Feb 26 19:53:50 PST 1998
Update of /cvsroot/src/sys/arch/alpha/alpha
In directory nb00:/tmp/cvs-serv4335/alpha

Modified Files:
	locore.s 
Log Message:
Several changes related to all pmaps having their own level 1
page table:
- Update the current hwpcb pointer in the SWITCH_CONTEXT macro, so that
  we know it's always correct.
- Optimize cpu_switch(): if we're switching to ourselves, skip the
  actual context swap.
- Clean up some comments and remove some code rendered obsolete by
  the fact that address spaces are now selected by switching to a
  new level 1 page table.


thorpej
Thu Feb 26 19:59:59 PST 1998
Update of /cvsroot/src/sys/arch/alpha/alpha
In directory nb00:/tmp/cvs-serv4371/alpha

Modified Files:
	pmap.old.c 
Log Message:
Step 1 of the Grand Alpha Pmap Rototill:
- Clean up pmap_bootstrap() some, and make a slight change to how the
  PROM mappings are saved.
- Give each pmap its own level 1 page table, rather than sharing a global
  level 1 page table.  This will eventually allow for Very Large user
  address spaces.
- Keep a list of all pmaps, so that when kernel level 2 page tables are
  allocated, all level 1 tables may be updated.
- Add a couple of functions for allocating and freeing page table pages.
- Add a few comments about ASN allocation.


thorpej
Thu Feb 26 19:59:59 PST 1998
Update of /cvsroot/src/sys/arch/alpha/include
In directory nb00:/tmp/cvs-serv4371/include

Modified Files:
	pmap.old.h 
Log Message:
Step 1 of the Grand Alpha Pmap Rototill:
- Clean up pmap_bootstrap() some, and make a slight change to how the
  PROM mappings are saved.
- Give each pmap its own level 1 page table, rather than sharing a global
  level 1 page table.  This will eventually allow for Very Large user
  address spaces.
- Keep a list of all pmaps, so that when kernel level 2 page tables are
  allocated, all level 1 tables may be updated.
- Add a couple of functions for allocating and freeing page table pages.
- Add a few comments about ASN allocation.