On Sun, May 08, 2022 at 07:28:08PM -0500, Besar Wicaksono wrote:

Add driver support for ARM CoreSight PMU device and event attributes for NVIDIA
implementation. The code is based on ARM Coresight PMU architecture and ACPI ARM
Performance Monitoring Unit table (APMT) specification below:
 * ARM Coresight PMU:
        https://developer.arm.com/documentation/ihi0091/latest
 * APMT: https://developer.arm.com/documentation/den0117/latest

Notes:
 * There is a concern on the naming of the PMU device.
   Currently the driver is probing "arm-coresight-pmu" device, however the APMT
   spec supports different kinds of CoreSight PMU based implementation. So it is
   open for discussion if the name can stay or a "generic" name is required.
   Please see the following thread:
   http://lists.infradead.org/pipermail/linux-arm-kernel/2022-May/740485.html

Besar Wicaksono (2):
  perf: coresight_pmu: Add support for ARM CoreSight PMU driver
  perf: coresight_pmu: Add support for NVIDIA SCF and MCF attribute

 arch/arm64/configs/defconfig                  |    1 +
 drivers/perf/Kconfig                          |    2 +
 drivers/perf/Makefile                         |    1 +
 drivers/perf/coresight_pmu/Kconfig            |   10 +
 drivers/perf/coresight_pmu/Makefile           |    7 +
 .../perf/coresight_pmu/arm_coresight_pmu.c    | 1317 +++++++++++++++++
 .../perf/coresight_pmu/arm_coresight_pmu.h    |  147 ++
 .../coresight_pmu/arm_coresight_pmu_nvidia.c  |  300 ++++
 .../coresight_pmu/arm_coresight_pmu_nvidia.h  |   17 +
 9 files changed, 1802 insertions(+)

How does this interact with all the stuff we have under
drivers/hwtracing/coresight/?

Will

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel