Messages in this thread | | | Date | Fri, 29 May 2015 10:29:07 +0100 | From | "Suzuki K. Poulose" <> | Subject | Re: [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(-) >
| |