CVS commit: src/sys/arch

[Andrew Doran <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Mon Apr 28 22:47:37 UTC 2008

Modified Files:
        src/sys/arch/amd64/amd64: cpufunc.S genassym.cf ipifuncs.c spl.S
        src/sys/arch/amd64/include: cpu.h
        src/sys/arch/i386/i386: cpufunc.S genassym.cf ipifuncs.c spl.S
        src/sys/arch/i386/include: cpu.h
        src/sys/arch/x86/include: intr.h intrdefs.h
        src/sys/arch/x86/x86: intr.c x86_machdep.c

Log Message:
Add support for kernel preeemption to the i386 and amd64 ports. Notes:

- I have seen one isolated panic in the x86 pmap, but otherwise i386
  seems stable with preemption enabled.

- amd64 is missing the FPU handling changes and it's not yet safe to
  enable it there.

- The usual level for kern.sched.kpreempt_pri will be 128 once enabled
  by default. For testing, setting it to 0 helps to shake out bugs.


To generate a diff of this commit:
cvs rdiff -r1.9 -r1.10 src/sys/arch/amd64/amd64/cpufunc.S
cvs rdiff -r1.29 -r1.30 src/sys/arch/amd64/amd64/genassym.cf
cvs rdiff -r1.17 -r1.18 src/sys/arch/amd64/amd64/ipifuncs.c
cvs rdiff -r1.18 -r1.19 src/sys/arch/amd64/amd64/spl.S
cvs rdiff -r1.49 -r1.50 src/sys/arch/amd64/include/cpu.h
cvs rdiff -r1.7 -r1.8 src/sys/arch/i386/i386/cpufunc.S
cvs rdiff -r1.67 -r1.68 src/sys/arch/i386/i386/genassym.cf
cvs rdiff -r1.25 -r1.26 src/sys/arch/i386/i386/ipifuncs.c
cvs rdiff -r1.28 -r1.29 src/sys/arch/i386/i386/spl.S
cvs rdiff -r1.167 -r1.168 src/sys/arch/i386/include/cpu.h
cvs rdiff -r1.32 -r1.33 src/sys/arch/x86/include/intr.h
cvs rdiff -r1.12 -r1.13 src/sys/arch/x86/include/intrdefs.h
cvs rdiff -r1.44 -r1.45 src/sys/arch/x86/x86/intr.c
cvs rdiff -r1.16 -r1.17 src/sys/arch/x86/x86/x86_machdep.c

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