CVS commit: src/sys/arch/vax

["Matt Thomas" <matt%netbsd.org@localhost>]

Module Name:    src
Committed By:   matt
Date:           Sat Nov 13 02:23:27 UTC 2010

Modified Files:
        src/sys/arch/vax/include: cpu.h trap.h
        src/sys/arch/vax/vax: genassym.cf lock_stubs.S trap.c

Log Message:
Implement CAS using a RAS for non-MP VAX systems.  This technique uses the
atomicity of indirect addressing for correctness.  It also uses the knowledge
of dereferencing an address outside the page table length will cause a PTELEN
trap.  [Tested on netbsd-5]


To generate a diff of this commit:
cvs rdiff -u -r1.89 -r1.90 src/sys/arch/vax/include/cpu.h
cvs rdiff -u -r1.22 -r1.23 src/sys/arch/vax/include/trap.h
cvs rdiff -u -r1.46 -r1.47 src/sys/arch/vax/vax/genassym.cf
cvs rdiff -u -r1.16 -r1.17 src/sys/arch/vax/vax/lock_stubs.S
cvs rdiff -u -r1.124 -r1.125 src/sys/arch/vax/vax/trap.c

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