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Re: [PATCH v2 13/25] powerpc/8xx: also use r3 in the ITLB miss in all situations

From Scott Wood <scottwood@freescale.com>
Newsgroups linux.kernel
Subject Re: [PATCH v2 13/25] powerpc/8xx: also use r3 in the ITLB miss in all situations
Date 2015-09-29 02:10 +0200
Message-ID <qdQEy-6Iv-1@gated-at.bofh.it> (permalink)
References <qbz57-2KT-3@gated-at.bofh.it> <qbz59-2KT-47@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Sep 22, 2015 at 06:50:54PM +0200, Christophe Leroy wrote:
> We are spending between 40 and 160 cycles with a mean of 65 cycles
> in the TLB handling routines (measured with mftbl) so make it more
> simple althought it adds one instruction
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
> ---
> No change in v2
> 
>  arch/powerpc/kernel/head_8xx.S | 15 ++++-----------
>  1 file changed, 4 insertions(+), 11 deletions(-)

Why is this a separate patch from 1/25?

Same comments as on that patch.

-Scott
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[PATCH v2 13/25] powerpc/8xx: also use r3 in the ITLB miss in all  situations Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 19:00 +0200
  Re: [PATCH v2 13/25] powerpc/8xx: also use r3 in the ITLB miss in  all situations Scott Wood <scottwood@freescale.com> - 2015-09-29 02:10 +0200

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