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    SubjectRe: [RESEND PATCH v3 1/2] perf: coresight_pmu: Add support for ARM CoreSight PMU driver
    On Tue, Jun 21, 2022 at 12:50:34AM -0500, Besar Wicaksono wrote:
    > Add support for ARM CoreSight PMU driver framework and interfaces.
    > The driver provides generic implementation to operate uncore PMU based
    > on ARM CoreSight PMU architecture. The driver also provides interface
    > to get vendor/implementation specific information, for example event
    > attributes and formating.
    >
    > The specification used in this implementation can be found below:
    > * ACPI Arm Performance Monitoring Unit table:
    > https://developer.arm.com/documentation/den0117/latest
    > * ARM Coresight PMU architecture:
    > https://developer.arm.com/documentation/ihi0091/latest
    >
    > Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com>
    > ---
    > arch/arm64/configs/defconfig | 1 +
    > drivers/perf/Kconfig | 2 +
    > drivers/perf/Makefile | 1 +
    > drivers/perf/coresight_pmu/Kconfig | 11 +
    > drivers/perf/coresight_pmu/Makefile | 6 +
    > .../perf/coresight_pmu/arm_coresight_pmu.c | 1312 +++++++++++++++++
    > .../perf/coresight_pmu/arm_coresight_pmu.h | 177 +++
    > 7 files changed, 1510 insertions(+)
    > create mode 100644 drivers/perf/coresight_pmu/Kconfig
    > create mode 100644 drivers/perf/coresight_pmu/Makefile
    > create mode 100644 drivers/perf/coresight_pmu/arm_coresight_pmu.c
    > create mode 100644 drivers/perf/coresight_pmu/arm_coresight_pmu.h
    >
    > diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
    > index 7d1105343bc2..22184f8883da 100644
    > --- a/arch/arm64/configs/defconfig
    > +++ b/arch/arm64/configs/defconfig
    > @@ -1212,6 +1212,7 @@ CONFIG_PHY_UNIPHIER_USB3=y
    > CONFIG_PHY_TEGRA_XUSB=y
    > CONFIG_PHY_AM654_SERDES=m
    > CONFIG_PHY_J721E_WIZ=m
    > +CONFIG_ARM_CORESIGHT_PMU=y
    > CONFIG_ARM_SMMU_V3_PMU=m
    > CONFIG_FSL_IMX8_DDR_PMU=m
    > CONFIG_QCOM_L2_PMU=y
    > diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig
    > index 1e2d69453771..c4e7cd5b4162 100644
    > --- a/drivers/perf/Kconfig
    > +++ b/drivers/perf/Kconfig
    > @@ -192,4 +192,6 @@ config MARVELL_CN10K_DDR_PMU
    > Enable perf support for Marvell DDR Performance monitoring
    > event on CN10K platform.
    >
    > +source "drivers/perf/coresight_pmu/Kconfig"
    > +
    > endmenu
    > diff --git a/drivers/perf/Makefile b/drivers/perf/Makefile
    > index 57a279c61df5..4126a04b5583 100644
    > --- a/drivers/perf/Makefile
    > +++ b/drivers/perf/Makefile
    > @@ -20,3 +20,4 @@ obj-$(CONFIG_ARM_DMC620_PMU) += arm_dmc620_pmu.o
    > obj-$(CONFIG_MARVELL_CN10K_TAD_PMU) += marvell_cn10k_tad_pmu.o
    > obj-$(CONFIG_MARVELL_CN10K_DDR_PMU) += marvell_cn10k_ddr_pmu.o
    > obj-$(CONFIG_APPLE_M1_CPU_PMU) += apple_m1_cpu_pmu.o
    > +obj-$(CONFIG_ARM_CORESIGHT_PMU) += coresight_pmu/
    > diff --git a/drivers/perf/coresight_pmu/Kconfig b/drivers/perf/coresight_pmu/Kconfig
    > new file mode 100644
    > index 000000000000..89174f54c7be
    > --- /dev/null
    > +++ b/drivers/perf/coresight_pmu/Kconfig
    > @@ -0,0 +1,11 @@
    > +# SPDX-License-Identifier: GPL-2.0
    > +#
    > +# Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES.
    > +
    > +config ARM_CORESIGHT_PMU
    > + tristate "ARM Coresight PMU"
    > + depends on ACPI
    > + depends on ACPI_APMT || COMPILE_TEST

    ACPI_APMT doesn't exist in my tree. What's missing here?

    Will

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