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Date: Tue, 6 Oct 2015 11:48:09 -0500 From: Scott Wood <scottwood@...escale.com> To: Christophe Leroy <christophe.leroy@....fr> 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 On Tue, 2015-10-06 at 16:12 +0200, Christophe Leroy wrote: > 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 ? If there's no real need, why do it? It's not really a major readability enhancement... -Scott -- 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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