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CVS commit: src/sys/arch/arm

Module Name:    src
Committed By:   matt
Date:           Wed Jun 12 21:34:12 UTC 2013

Modified Files:
        src/sys/arch/arm/arm: fiq.c vectors.S
        src/sys/arch/arm/arm32: arm32_kvminit.c arm32_machdep.c pmap.c
        src/sys/arch/arm/conf: files.arm
        src/sys/arch/arm/include/arm32: pmap.h

Log Message:
Add a ARM_HAS_VBAR option which forces the use of the VBAR register.  This
allows much code to deal with vector_page mappings to be eliminated.  On a
BEAGLEBONE kernel, this saves 8KB of text and instructions that never have
to be executed.  (The PJ4B has VBAR but doesn't implement the security
extensions it is part of so a method was needed to allow it use VBAR with
relying on the default test for the security extensions.)

To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/arm/arm/fiq.c \
cvs rdiff -u -r1.19 -r1.20 src/sys/arch/arm/arm32/arm32_kvminit.c
cvs rdiff -u -r1.93 -r1.94 src/sys/arch/arm/arm32/arm32_machdep.c
cvs rdiff -u -r1.256 -r1.257 src/sys/arch/arm/arm32/pmap.c
cvs rdiff -u -r1.118 -r1.119 src/sys/arch/arm/conf/files.arm
cvs rdiff -u -r1.119 -r1.120 src/sys/arch/arm/include/arm32/pmap.h

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

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