[stable 3.10.y] Please backport a56a5cf1f2ec "ARM: highbank: avoid L2 cache smc calls when PL310 is not present"
luis.henriques at canonical.com
Mon Mar 10 09:15:50 EDT 2014
On Sun, Mar 09, 2014 at 02:35:48AM +0000, Ian Campbell wrote:
> [trying again with the correct stable@, sorry for the noise]
> Hi stable@,
> Please could you backport the changeset in $SUBJECT (and below) to
> 3.10.y. It went into v3.12-rc1 so I suppose you might also consider it
> for other stable branches before then which are still live.
> I thought it might require 0b53c11d533a "ARM: move outer_cache
> declaration out of ifdef" but Kconfig seems to be such that it isn't
> needed in practice.
Thank you Ian, I'll queue this commit for the 3.11 kernel as well.
> commit a56a5cf1f2ec895599eace0ac6eba1e4a489e4bf
> Author: Rob Herring <rob.herring at calxeda.com>
> Date: Sat Aug 17 20:10:28 2013 -0500
> ARM: highbank: avoid L2 cache smc calls when PL310 is not present
> While Midway firmware handles L2 smc calls as nops, the custom smc calls
> present a problem when running virtualized Midway guest. They aren't
> needed so just avoid calling them.
> In the process, cleanup the L2X0 ifdefs and use IS_ENABLED instead.
> Signed-off-by: Rob Herring <rob.herring at calxeda.com>
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