[PATCH] drivers/perf: arm-pmu: Handle per-interrupt affinity mask

Rob Herring robh at kernel.org
Tue Jul 5 07:23:50 PDT 2016

On Fri, Jul 01, 2016 at 02:21:31PM +0100, Marc Zyngier wrote:
> On a big-little system, PMUs can be wired to CPUs using per CPU
> interrups (PPI). In this case, it is important to make sure that
> the enable/disable do happen on the right set of CPUs.
> So instead of relying on the interrupt-affinity property, we can
> use the actual percpu affinity that DT exposes as part of the
> interrupt specifier. The DT binding is also updated to reflect
> the fact that the interrupt-affinity property shouldn't be used
> in that case.
> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
> ---
>  Documentation/devicetree/bindings/arm/pmu.txt |  4 +++-

Acked-by: Rob Herring <robh at kernel.org>

>  drivers/perf/arm_pmu.c                        | 22 +++++++++++++++++-----
>  2 files changed, 20 insertions(+), 6 deletions(-)

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