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    Subject[PATCH 0/7] ARM CCI PMU updates for 4.2
    Date
    From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>

    Hi,

    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.

    ---
    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(-)

    --
    1.7.9.5



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