[PATCH 0/4] Add DT support for arm_smmuv3_pmu driver

Robin Murphy robin.murphy at arm.com
Mon Jul 13 05:42:49 EDT 2020


On 2020-07-12 17:33, Ajay Kumar wrote:
> Currently, only those platforms using ACPI can enable
> arm_smmuv3_pmu driver. This patchset adds support for
> enabling arm_smmuv3_pmu driver on platforms which do not
> enable ACPI and instead rely on DT.

This must be a popular topic all of a sudden, since it's barely a week 
since the last one!

https://lore.kernel.org/linux-arm-kernel/20200706112246.92220-1-jkchen@linux.alibaba.com/

I'm not sure whether Jay has seen my review since Alibaba's mail server 
apparently decided to reject the direct reply as spam, but some of what 
I said there applies here too. Could we please try to coordinate where 
we go from here so we're not all wasting time developing and reviewing 
multiple versions of the exact same thing?

Robin.

> 
> Ajay Kumar (4):
>    perf/smmuv3: Remove dependency on CONFIG_ACPI
>    Documentation: perf: Add documentation for arm-smmu-v3-pmcg
>    perf/smmuv3: add device tree support
>    perf/smmuv3: fix crash when platdata not specified
> 
>   .../bindings/perf/arm-smmu-v3-pmcg.txt        | 21 +++++++++++++++++++
>   drivers/perf/Kconfig                          |  2 +-
>   drivers/perf/arm_smmuv3_pmu.c                 | 11 ++++++++--
>   3 files changed, 31 insertions(+), 3 deletions(-)
>   create mode 100644 Documentation/devicetree/bindings/perf/arm-smmu-v3-pmcg.txt
> 



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