[PATCH v2] ARMv7: Use the Inner Shareable I-cache on MP

Shilimkar, Santosh santosh.shilimkar at ti.com
Wed May 19 08:39:07 EDT 2010


> -----Original Message-----
> From: svenkatr at gmail.com [mailto:svenkatr at gmail.com] On Behalf Of S, Venkatraman
> Sent: Wednesday, May 19, 2010 6:06 PM
> To: Shilimkar, Santosh
> Cc: linux-arm-kernel at lists.infradead.org; linux-omap at vger.kernel.org; Catalin Marinas
> Subject: Re: [PATCH v2] ARMv7: Use the Inner Shareable I-cache on MP
> 
> Santosh Shilimkar <santosh.shilimkar at ti.com> wrote:
> > This patch fixes the flush_cache_all for ARMv7 SMP. It was
> > missing from commit b8349b569aae661dea9d59d7d2ee587ccea3336c
> >
> > Signed-off-by: Santosh Shilimkar <santosh.shilimkar at ti.com>
> > Cc: Catalin Marinas <catalin.marinas at arm.com>
> > ---
> > Updated version after removing the not necessary second hunk
> >
> > arch/arm/mm/cache-v7.S |    4 ++++
> >  1 files changed, 4 insertions(+), 0 deletions(-)
> >
> > diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
> > index 06a90dc..5009635 100644
> > --- a/arch/arm/mm/cache-v7.S
> > +++ b/arch/arm/mm/cache-v7.S
> > @@ -91,7 +91,11 @@ ENTRY(v7_flush_kern_cache_all)
> >  THUMB(        stmfd   sp!, {r4-r7, r9-r11, lr}        )
> >        bl      v7_flush_dcache_all
> >        mov     r0, #0
> > +#ifdef CONFIG_SMP
> > +       mcr     p15, 0, r0, c7, c1, 0           @ invalidate I-cache inner shareable
> > +#elese
> 
> s/elese/else
> 
oops ... Will correct this while submitting to the patch
system

Regards,
Santosh 



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