[PATCH v2 22/25] powerpc32: move xxxxx_dcache_range() functions inline
scottwood at freescale.com
Wed Sep 23 08:52:33 AEST 2015
On Wed, 2015-09-23 at 00:49 +0200, Christophe Leroy wrote:
> Le 23/09/2015 00:34, Scott Wood a écrit :
> > On Tue, 2015-09-22 at 22:57 +0200, Christophe Leroy wrote:
> > > > Here is what I get in asm. First one is with "if (i) mb();". We see
> > > > gcc
> > > > puts a beqlr. This is the form that is closest to what we had in the
> > > > former misc_32.S
> > > > Second one if with "mb()". Here we get a branch to sync for a useless
> > > > sync
> > I was more concerned with keeping the code simple than the asm output.
> Right, but is that so complicated to say: if we did nothing in the loop,
> no need to sync ?
As I said, it doesn't matter very much. I wouldn't put it in personally, but
it's not worth a long discussion.
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