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linux-next/drivers/perf/Kconfig
Neil Leeder 7d839b4b9e perf/smmuv3: Add arm64 smmuv3 pmu driver
Adds a new driver to support the SMMUv3 PMU and add it into the
perf events framework.

Each SMMU node may have multiple PMUs associated with it, each of
which may support different events.

SMMUv3 PMCG devices are named as smmuv3_pmcg_<phys_addr_page> where
<phys_addr_page> is the physical page address of the SMMU PMCG
wrapped to 4K boundary. For example, the PMCG at 0xff88840000 is
named smmuv3_pmcg_ff88840

Filtering by stream id is done by specifying filtering parameters
with the event. options are:
   filter_enable    - 0 = no filtering, 1 = filtering enabled
   filter_span      - 0 = exact match, 1 = pattern match
   filter_stream_id - pattern to filter against

Example: perf stat -e smmuv3_pmcg_ff88840/transaction,filter_enable=1,
                       filter_span=1,filter_stream_id=0x42/ -a netperf

Applies filter pattern 0x42 to transaction events, which means events
matching stream ids 0x42 & 0x43 are counted as only upper StreamID
bits are required to match the given filter. Further filtering
information is available in the SMMU documentation.

SMMU events are not attributable to a CPU, so task mode and sampling
are not supported.

Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
[will: fold in review feedback from Robin]
[will: rewrite Kconfig text and allow building as a module]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-04 16:49:21 +01:00

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#
# Performance Monitor Drivers
#
menu "Performance monitor support"
depends on PERF_EVENTS
config ARM_CCI_PMU
tristate "ARM CCI PMU driver"
depends on (ARM && CPU_V7) || ARM64
select ARM_CCI
help
Support for PMU events monitoring on the ARM CCI (Cache Coherent
Interconnect) family of products.
If compiled as a module, it will be called arm-cci.
config ARM_CCI400_PMU
bool "support CCI-400"
default y
depends on ARM_CCI_PMU
select ARM_CCI400_COMMON
help
CCI-400 provides 4 independent event counters counting events related
to the connected slave/master interfaces, plus a cycle counter.
config ARM_CCI5xx_PMU
bool "support CCI-500/CCI-550"
default y
depends on ARM_CCI_PMU
help
CCI-500/CCI-550 both provide 8 independent event counters, which can
count events pertaining to the slave/master interfaces as well as the
internal events to the CCI.
config ARM_CCN
tristate "ARM CCN driver support"
depends on ARM || ARM64
help
PMU (perf) driver supporting the ARM CCN (Cache Coherent Network)
interconnect.
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_SMMU_V3_PMU
tristate "ARM SMMUv3 Performance Monitors Extension"
depends on ARM64 && ACPI && ARM_SMMU_V3
help
Provides support for the ARM SMMUv3 Performance Monitor Counter
Groups (PMCG), which provide monitoring of transactions passing
through the SMMU and allow the resulting information to be filtered
based on the Stream ID of the corresponding master.
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 HISI_PMU
bool "HiSilicon SoC PMU"
depends on ARM64 && ACPI
help
Support for HiSilicon SoC uncore performance monitoring
unit (PMU), such as: L3C, HHA and DDRC.
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 THUNDERX2_PMU
tristate "Cavium ThunderX2 SoC PMU UNCORE"
depends on ARCH_THUNDER2 && ARM64 && ACPI && NUMA
default m
help
Provides support for ThunderX2 UNCORE events.
The SoC has PMU support in its L3 cache controller (L3C) and
in the DDR4 Memory Controller (DMC).
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.
config ARM_SPE_PMU
tristate "Enable support for the ARMv8.2 Statistical Profiling Extension"
depends on ARM64
help
Enable perf support for the ARMv8.2 Statistical Profiling
Extension, which provides periodic sampling of operations in
the CPU pipeline and reports this via the perf AUX interface.
endmenu