CVS commit: src/sys/arch/sparc/sparc

[matthew green <mrg%netbsd.org@localhost>]

Module Name:    src
Committed By:   mrg
Date:           Fri Jun  5 01:36:07 UTC 2009

Modified Files:
        src/sys/arch/sparc/sparc: genassym.cf intr.c locore.s

Log Message:
convert sparc "intrcnt" counters to evcnt(9) style.  XXX some of the names
could be better, but i just copied them from the old intrnames in locore.

i benchmarked this with a simple test of ircii ./configure && make, to see
if the additional load/store & arith would cause any noticeable degradation
as the change also converts 32 bit counters to 64 bits.  amusingly, the
only trend i saw in this was that for both portions, i see a consistent
(across at least 8 runs) benefit of about 0.8% improvement.  ie, the newer
larger code size / counter size code actually runs faster for some reason..
maybe there's a cacheline effect in the size of the code?

XXX the current implementation depends on a couple of things:
XXX   - ev_count member of evcnt{} is first and has offset 0
XXX   - that sizeof(struct evcnt) equals 32
XXX if these are not true, locore.s has #error's to catch it


To generate a diff of this commit:
cvs rdiff -u -r1.56 -r1.57 src/sys/arch/sparc/sparc/genassym.cf
cvs rdiff -u -r1.104 -r1.105 src/sys/arch/sparc/sparc/intr.c
cvs rdiff -u -r1.246 -r1.247 src/sys/arch/sparc/sparc/locore.s

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