[PATCH v4] ARM: l2c: add options to overwrite prefetching behavior

Russell King - ARM Linux linux at arm.linux.org.uk
Thu Jun 11 02:34:17 PDT 2015

On Thu, Jun 11, 2015 at 11:24:59AM +0200, Thomas Petazzoni wrote:
> Dear Hauke Mehrtens,
> On Wed, 10 Jun 2015 21:26:35 +0200, Hauke Mehrtens wrote:
> > Thanks for asking, I did not know Russell's patch process, but Florian
> > guided me and now it is submitted, see
> > http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=8391/1
> I tested your patch, and I'm not sure how it can work for you, because
> the changes made to the PREFETCH_CTRL register on the data/instruction
> prefetch bits are later overridden by changes made to the AUX_CTRL
> register.

There's also a patch I sent on May 14th which needs to be applied for this
to work, and fixes the above.

> How does your patch handles the fact that the prefetch data and
> prefetch instr are cloned between PREFETCH_CTRL and AUX_CTRL ?

It needs my patch.

FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.

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