[v7,0/2] Add ThunderX2 SoC Performance Monitoring Unit driver

Message

Kulkarni, Ganapatrao Oct. 25, 2018, 5:59 a.m. UTC

This patchset adds PMU driver for Cavium's ThunderX2 SoC UNCORE devices.
The SoC has PMU support in L3 cache controller (L3C) and in the
DDR4 Memory Controller (DMC).

v7:
	Incorporated review comments [3].
	Modified driver as loadable module.
	Updated Documentation with Event description.
	Removed per-channel(no SMC calls) sampling implementation(
	Since DMC and L3C channels are interleave, we have decided to
	sample channel zero and prorate it to account for a Device).

[3] https://patchwork.kernel.org/patch/10479203/

v6:
	Rebased to 4.18-rc1
	Updated with comments from John Garry[3]

[3] https://lkml.org/lkml/2018/5/17/408

v5:
	Incorporated review comments from Mark Rutland[2]
v4:
	Incorporated review comments from Mark Rutland[1]

[1] https://www.spinics.net/lists/arm-kernel/msg588563.html
[2] https://lkml.org/lkml/2018/4/26/376

v3:
	Fixed warning reported by kbuild robot

v2:
	Rebased to 4.12-rc1
	Removed Arch VULCAN dependency.
	Update SMC call parameters as per latest firmware.

v1:
	Initial patch

Ganapatrao Kulkarni (2):
  perf, uncore: Adding documentation for ThunderX2 pmu uncore driver
  ThunderX2, perf : Add Cavium ThunderX2 SoC UNCORE PMU driver

 Documentation/perf/thunderx2-pmu.txt | 106 ++++
 drivers/perf/Kconfig                 |   9 +
 drivers/perf/Makefile                |   1 +
 drivers/perf/thunderx2_pmu.c         | 867 +++++++++++++++++++++++++++
 include/linux/cpuhotplug.h           |   1 +
 5 files changed, 984 insertions(+)
 create mode 100644 Documentation/perf/thunderx2-pmu.txt
 create mode 100644 drivers/perf/thunderx2_pmu.c

Comments

Ganapatrao Kulkarni Nov. 9, 2018, 10:22 a.m. UTC | #1

Hi Mark,

can you please review this series?

On Thu, Oct 25, 2018 at 11:29 AM Kulkarni, Ganapatrao
<[e-mail]> wrote:
>
> This patchset adds PMU driver for Cavium's ThunderX2 SoC UNCORE devices.
> The SoC has PMU support in L3 cache controller (L3C) and in the
> DDR4 Memory Controller (DMC).
>
> v7:
>         Incorporated review comments [3].
>         Modified driver as loadable module.
>         Updated Documentation with Event description.
>         Removed per-channel(no SMC calls) sampling implementation(
>         Since DMC and L3C channels are interleave, we have decided to
>         sample channel zero and prorate it to account for a Device).
>
> [3] https://patchwork.kernel.org/patch/10479203/
>
> v6:
>         Rebased to 4.18-rc1
>         Updated with comments from John Garry[3]
>
> [3] https://lkml.org/lkml/2018/5/17/408
>
> v5:
>         Incorporated review comments from Mark Rutland[2]
> v4:
>         Incorporated review comments from Mark Rutland[1]
>
> [1] https://www.spinics.net/lists/arm-kernel/msg588563.html
> [2] https://lkml.org/lkml/2018/4/26/376
>
> v3:
>         Fixed warning reported by kbuild robot
>
> v2:
>         Rebased to 4.12-rc1
>         Removed Arch VULCAN dependency.
>         Update SMC call parameters as per latest firmware.
>
> v1:
>         Initial patch
>
> Ganapatrao Kulkarni (2):
>   perf, uncore: Adding documentation for ThunderX2 pmu uncore driver
>   ThunderX2, perf : Add Cavium ThunderX2 SoC UNCORE PMU driver
>
>  Documentation/perf/thunderx2-pmu.txt | 106 ++++
>  drivers/perf/Kconfig                 |   9 +
>  drivers/perf/Makefile                |   1 +
>  drivers/perf/thunderx2_pmu.c         | 867 +++++++++++++++++++++++++++
>  include/linux/cpuhotplug.h           |   1 +
>  5 files changed, 984 insertions(+)
>  create mode 100644 Documentation/perf/thunderx2-pmu.txt
>  create mode 100644 drivers/perf/thunderx2_pmu.c
>
> --
> 2.18.0
>

thanks
Ganapat