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Date: Tue, 6 Oct 2015 16:12:21 +0200 From: Christophe Leroy <christophe.leroy@....fr> To: Scott Wood <scottwood@...escale.com> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>, Paul Mackerras <paulus@...ba.org>, Michael Ellerman <mpe@...erman.id.au>, linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org Subject: Re: [PATCH v2 13/25] powerpc/8xx: also use r3 in the ITLB miss in all situations Le 29/09/2015 02:00, Scott Wood a écrit : > 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@....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. > > Just because here there is no real need behind the simplification of the code, whereas the first one was a pre-requisite for the following patch. Should I merge them together anyway ? Christophe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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