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SubjectRe: [PATCH 0/7] ARM CCI PMU updates for 4.2
Hi arm-soc folk,

On 26/05/15 10:53, Suzuki K. Poulose wrote:
> From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>
>
> Here is the series which adds support for the CCI-500
> PMU. Could you please apply this for 4.2 ?
>
> Please let me know if you need a pull request, I could ask Will to
> setup one.

Gentle ping on this series for 4.2.

Suzuki

> ---
> This series adds the support for CCI-500 PMU, by
> reusing and rearranging the CCI-400 PMU driver code.
>
> CCI-500 (the new Cache Coherent Interconnect IP) has
> a PMU with 8 independent event counters and supports
> profiling events related to master/slave interfaces
> along with the global events(cci internal events).
>
> The series also adds aliases for events for all the
> supported CCI PMUs(CCI_400{r0,r1}, CCI_500).
>
> Patches 1/7 is a fix posted by Mark Salter, which has
> been posted to arm@kernel.org already. I have included
> it in this series, as this series applies on top of it.
>
> Patches 2-5 - Creates an abstraction of a CCI PMU and
> makes the CCI-400 driver code to make use of the abstraction.
> Patch 6 - Adds the CCI-500 PMU driver support
> Patch 7 - Adds the aliases for CCI PMU events (specific to chipsets).
>
> With the series, one can use named events for the CCI pmus.
>
> e.g, CCI-400
>
> # perf list | grep CCI
> CCI_400/cycles/ [Kernel PMU event]
> CCI_400/mi_retry_speculative_fetch,source=?/ [Kernel PMU event]
>
> e.g, CCI-500
>
> # perf list |grep CCI
> CCI_500/cci_rq_stall_address_hazard/ [Kernel PMU event]
> CCI_500/cci_snoop_access_filter_bank_0_1/ [Kernel PMU event]
>
> Testing was performed on a fast model, with perf fuzzer and functional
> tests for the CCI-500 PMU.
> ---
> Changes since V1: https://lkml.org/lkml/2015/5/5/323
>
> The series remains functionaly pretty much the same, except for a minor
> fix in the Kconfig default for CCI-500.
> - Pulled in a CCI-400 config fix posted separately,
> as Patch 1/7.
> https://patchwork.kernel.org/patch/6387121/
> - Add the similar Kconfig changes for CCI-500 as fixed in
> the patch above.
> - Dropped Mark Salter's fix for CCI, which is now queued.
>
> Suzuki K. Poulose (7):
> arm-cci: Do not enable CCI-400 PMU by default
> arm-cci: Cleanup PMU driver code
> arm-cci: Abstract out the PMU counter details
> arm-cci: Abstract handling for CCI events
> arm-cci: Sanitise CCI400 PMU driver specific code
> arm-cci: Add CCI-500 PMU support
> arm-cci: Add aliases for PMU events
>
> Documentation/devicetree/bindings/arm/cci.txt | 4 +-
> drivers/bus/Kconfig | 31 +-
> drivers/bus/arm-cci.c | 905 ++++++++++++++++++++-----
> 3 files changed, 763 insertions(+), 177 deletions(-)
>



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