[PATCH] powerpc: Keep track of emulated instructions

[Geert Uytterhoeven]

On Sat, 4 Apr 2009, Michael Ellerman wrote:
> On Fri, 2009-04-03 at 14:08 +0200, Geert Uytterhoeven wrote:
> > Finally (after ca. 1.5 years), he're an updated version of my patch to keep
> > track of emulated instructions.  In the light of Kumar's `Emulate enough of SPE
> > instructions to make gcc happy' patch, he probably also wants to keep track of
> > the actual runtime overhead.
> > 
> > Changes since last version:
> >   - arch/powerpc/kernel/sysfs.c is now compiled on ppc32, so we can provide
> >     counters in sysfs on ppc32, too,
> >   - WARN_EMULATED() is a no-op if CONFIG_SYSCTL is disabled,
> >   - Add warnings for altivec,
> >   - Add warnings for recently introduced emulation of vsx and isel
> >     instructions.
> 
> You don't count instructions that fall through to the bottom of
> fix_alignment()?

Thanks! I add a generic unaligned counter for the fall through case.

With kind regards,

Geert Uytterhoeven
Software Architect

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