Re: [PATCH v2] drivers/perf: arm-pmu: Handle per-interrupt affinity mask

[Rob Herring]

On Wed, Jul 06, 2016 at 03:33:47PM +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@xxxxxxx>
> ---
> * From v1:
>   - propagate the error if irq_get_percpu_devid_partition fails
> 
>  Documentation/devicetree/bindings/arm/pmu.txt |  4 +++-

I acked v1, please add acks.

Rob

>  drivers/perf/arm_pmu.c                        | 27 ++++++++++++++++++++++-----
>  2 files changed, 25 insertions(+), 6 deletions(-)