fb8f9ffcb0
Add support for the Cluster PMU part of the ARM DynamIQ Shared Unit (DSU). The DSU integrates one or more cores with an L3 memory system, control logic, and external interfaces to form a multicore cluster. The PMU allows counting the various events related to L3, SCU etc, along with providing a cycle counter. The PMU can be accessed via system registers, which are common to the cores in the same cluster. The PMU registers follow the semantics of the ARMv8 PMU, mostly, with the exception that the counters record the cluster wide events. This driver is mostly based on the ARMv8 and CCI PMU drivers. The driver only supports ARM64 at the moment. It can be extended to support ARM32 by providing register accessors like we do in arch/arm64/include/arm_dsu_pmu.h. Change-Id: I8fde43843168df7575ef4d11b61e627f5204f00d Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Git-commit: 7520fa99246dade7ab6dde1573a146beed632abd Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git [rananta@codeaurora@org: resolved trivial merge conflicts] Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
65 lines
1.8 KiB
Plaintext
65 lines
1.8 KiB
Plaintext
#
|
|
# Performance Monitor Drivers
|
|
#
|
|
|
|
menu "Performance monitor support"
|
|
depends on PERF_EVENTS
|
|
|
|
config ARM_PMU
|
|
depends on ARM || ARM64
|
|
bool "ARM PMU framework"
|
|
default y
|
|
help
|
|
Say y if you want to use CPU performance monitors on ARM-based
|
|
systems.
|
|
|
|
config ARM_PMU_ACPI
|
|
depends on ARM_PMU && ACPI
|
|
def_bool y
|
|
|
|
config ARM_DSU_PMU
|
|
tristate "ARM DynamIQ Shared Unit (DSU) PMU"
|
|
depends on ARM64
|
|
help
|
|
Provides support for performance monitor unit in ARM DynamIQ Shared
|
|
Unit (DSU). The DSU integrates one or more cores with an L3 memory
|
|
system, control logic. The PMU allows counting various events related
|
|
to DSU.
|
|
|
|
config QCOM_L2_PMU
|
|
bool "Qualcomm Technologies L2-cache PMU"
|
|
depends on ARCH_QCOM && ARM64 && ACPI
|
|
help
|
|
Provides support for the L2 cache performance monitor unit (PMU)
|
|
in Qualcomm Technologies processors.
|
|
Adds the L2 cache PMU into the perf events subsystem for
|
|
monitoring L2 cache events.
|
|
|
|
config QCOM_L3_PMU
|
|
bool "Qualcomm Technologies L3-cache PMU"
|
|
depends on ARCH_QCOM && ARM64 && ACPI
|
|
select QCOM_IRQ_COMBINER
|
|
help
|
|
Provides support for the L3 cache performance monitor unit (PMU)
|
|
in Qualcomm Technologies processors.
|
|
Adds the L3 cache PMU into the perf events subsystem for
|
|
monitoring L3 cache events.
|
|
|
|
config QCOM_LLCC_PMU
|
|
bool "Qualcomm Technologies LLCC PMU"
|
|
depends on ARCH_QCOM && ARM64
|
|
help
|
|
Provides support for the LLCC performance monitor unit (PMU) in
|
|
Qualcomm Technologies processors.
|
|
Adds the LLCC PMU into the perf events subsystem for monitoring
|
|
LLCC miss events.
|
|
|
|
config XGENE_PMU
|
|
depends on ARCH_XGENE
|
|
bool "APM X-Gene SoC PMU"
|
|
default n
|
|
help
|
|
Say y if you want to use APM X-Gene SoC performance monitors.
|
|
|
|
endmenu
|