[PATCH] ARM: mm: enable L1 prefetch on Cortex-A9

Russell King - ARM Linux linux at arm.linux.org.uk
Mon Jun 15 08:05:22 PDT 2015


On Mon, Jun 15, 2015 at 04:57:53PM +0200, Thomas Petazzoni wrote:
> Russell,
> 
> On Mon, 15 Jun 2015 12:11:03 +0100, Russell King - ARM Linux wrote:
> 
> > I'd prefer not to take this until after the next merge window, because I
> > don't want to deal with conflicts that this may cause with other branches
> > in my tree.
> > 
> > We're at -rc8 now, only a week away from -final, now is not really the
> > time to be taking new code into git trees anyway.
> 
> I should have mentioned that explicitly, but I clearly didn't expect
> this patch to be taken for the upcoming 4.2 merge window as it's way
> too late. Targeting 4.3 is perfectly fine.
> 
> However, can you consider my "ARM: smp_scu: enable coherent speculative
> linefills", which has been sent almost three months ago:
> 
>   http://lists.infradead.org/pipermail/linux-arm-kernel/2015-March/332106.html

I looked at that, and decided I didn't have enough information to know
whether that's a good idea to apply or not for all the different variants
we have out there.  It's something that needs to be merged early in the
cycle to give it enough time to be (hopefully) tested by people.

A lot of these "enable optimisation X" patches need to go through that
treatment.

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