Changes in Kconfig

e1dce564 - perf/marvell: Marvell PEM performance monitor support

Mon, 28 Oct 2024 05:53:09 +0000

perf/marvell: Marvell PEM performance monitor supportPCI Express Interface PMU includes various performance countersto monitor the data that is transmitted over the PCIe link. Thecounters track various inbound and outbound transactions whichincludes separate counters for posted/non-posted/completion TLPs.Also, inbound and outbound memory read requests along with theirlatencies can also be monitored. Address Translation Services(ATS)eventssuch as ATS Translation, ATS Page Request, ATS Invalidation along withtheir corresponding latencies are also supported.The performance counters are 64 bits wide.For instance,perf stat -e ib_tlp_pr tracks the inbound posted TLPs for the workload.Co-developed-by: Linu Cherian Signed-off-by: Linu Cherian Signed-off-by: Gowthami Thiagarajan Link: https://lore.kernel.org/r/20241028055309.17893-1-gthiagarajan@marvell.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

4d5a7680 - perf: Add driver for Arm NI-700 interconnect PMU

Wed, 04 Sep 2024 17:34:03 +0000

perf: Add driver for Arm NI-700 interconnect PMUThe Arm NI-700 Network-on-Chip Interconnect has a relativelystraightforward design with a hierarchy of voltage, power, and clockdomains, where each clock domain then contains a number of interfaceunits and a PMU which can monitor events thereon. As such, it begets arelatively straightforward driver to interface those PMUs with perf.Even more so than with arm-cmn, users will require detailed knowledge ofthe wider system topology in order to meaningfully analyse anything,since the interconnect itself cannot know what lies beyond the boundaryof each inscrutably-numbered interface. Given that, for now they arealso expected to refer to the NI-700 documentation for the relevantevent IDs to provide as well. An identifier is implemented so we cancome back and add jevents if anyone really wants to.Signed-off-by: Robin Murphy Link: https://lore.kernel.org/r/9933058d0ab8138c78a61cd6852ea5d5ff48e393.1725470837.git.robin.murphy@arm.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

8d75537b - perf/arm: Move 32-bit PMU drivers to drivers/perf/

Wed, 26 Jun 2024 22:32:27 +0000

perf/arm: Move 32-bit PMU drivers to drivers/perf/It is preferred to put drivers under drivers/ rather than under arch/.The PMU drivers also depend on arm_pmu.c, so it's better to place themall together.Acked-by: Mark Rutland Signed-off-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20240626-arm-pmu-3-9-icntr-v2-3-c9784b4f4065@kernel.orgSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

1d63d1d9 - perf: starfive: fix 64-bit only COMPILE_TEST condition

Mon, 18 Mar 2024 15:35:04 +0000

perf: starfive: fix 64-bit only COMPILE_TEST conditionARCH_STARFIVE is not restricted to 64-bit platforms, so while Will'saddition of a 64-bit only condition satisfied the build robots doingCOMPILE_TEST builds, Palmer ran into the same problems with writeq()being undefined during regular rv32 builds.Promote the dependency on 64-bit to its own `depends on` so that thedriver can never be included in 32-bit builds.Reported-by: Palmer Dabbelt Fixes: c2b24812f7bc ("perf: starfive: Add StarLink PMU support")Fixes: f0dbc6d0de38 ("perf: starfive: Only allow COMPILE_TEST for 64-bit architectures")Signed-off-by: Conor Dooley Acked-by: Will Deacon Reviewed-by: Palmer Dabbelt Acked-by: Palmer Dabbelt Acked-by: Ji Sheng Teoh Acked-by: Emil Renner Berthing Link: https://lore.kernel.org/r/20240318-emphatic-rally-f177a4fe1bdc@spudSigned-off-by: Catalin Marinas List of files: /linux-6.15/drivers/perf/Kconfig

bc969d6c - perf: RISC-V: Introduce Andes PMU to support perf event sampling

Thu, 22 Feb 2024 08:39:43 +0000

perf: RISC-V: Introduce Andes PMU to support perf event samplingAssign riscv_pmu_irq_num the value of (256 + 18) for the custome PMUand add SSCOUNTOVF and SIP alternatives to ALT_SBI_PMU_OVERFLOW()and ALT_SBI_PMU_OVF_CLEAR_PENDING() macros, respectively.To make use of Andes PMU extension, "xandespmu" needs to be appendedto the riscv,isa-extensions for each cpu node in device-tree, andmake sure CONFIG_ANDES_CUSTOM_PMU is enabled.Signed-off-by: Yu Chien Peter Lin Reviewed-by: Charles Ci-Jyun Wu Reviewed-by: Leo Yu-Chi Liang Co-developed-by: Locus Wei-Han Chen Signed-off-by: Locus Wei-Han Chen Reviewed-by: Lad Prabhakar Tested-by: Lad Prabhakar Link: https://lore.kernel.org/r/20240222083946.3977135-8-peterlin@andestech.comSigned-off-by: Palmer Dabbelt List of files: /linux-6.15/drivers/perf/Kconfig

f0dbc6d0 - perf: starfive: Only allow COMPILE_TEST for 64-bit architectures

Tue, 05 Mar 2024 10:56:49 +0000

perf: starfive: Only allow COMPILE_TEST for 64-bit architecturesThe kbuild robot exploded while wasting its time building the StarfivePMU driver for the 32-bit PA-RISC and Hexagon architectures.Adjust the Kconfig dependencies so that COMPILE_TEST is only applicablefor 64-bit architectures (which implement writeq()).Reported-by: kernel test robot Signed-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

c2b24812 - perf: starfive: Add StarLink PMU support

Thu, 29 Feb 2024 07:27:17 +0000

perf: starfive: Add StarLink PMU supportThis patch adds support for StarFive's StarLink PMU (PerformanceMonitor Unit). StarLink PMU integrates one or more CPU cores witha shared L3 memory system. The PMU supports overflow interrupt,up to 16 programmable 64bit event counters, and an independent64bit cycle counter. StarLink PMU is accessed via MMIO.Example Perf stat output:[root@user]# perf stat -a -e /starfive_starlink_pmu/cycles/ \ -e /starfive_starlink_pmu/read_miss/ \ -e /starfive_starlink_pmu/read_hit/ \ -e /starfive_starlink_pmu/release_request/ \ -e /starfive_starlink_pmu/write_hit/ \ -e /starfive_starlink_pmu/write_miss/ \ -e /starfive_starlink_pmu/write_request/ \ -e /starfive_starlink_pmu/writeback/ \ -e /starfive_starlink_pmu/read_request/ \ -- openssl speed rsa2048Doing 2048 bits private rsa's for 10s: 5 2048 bits private RSA's in2.84sDoing 2048 bits public rsa's for 10s: 169 2048 bits public RSA's in2.42sversion: 3.0.11built on: Tue Sep 19 13:02:31 2023 UTCoptions: bn(64,64)CPUINFO: N/A sign verify sign/s verify/srsa 2048 bits 0.568000s 0.014320s 1.8 69.8///////// Performance counter stats for 'system wide': 649991998 starfive_starlink_pmu/cycles/ 1009690 starfive_starlink_pmu/read_miss/ 1079750 starfive_starlink_pmu/read_hit/ 2089405 starfive_starlink_pmu/release_request/ 129 starfive_starlink_pmu/write_hit/ 70 starfive_starlink_pmu/write_miss/ 194 starfive_starlink_pmu/write_request/ 150080 starfive_starlink_pmu/writeback/ 2089423 starfive_starlink_pmu/read_request/ 27.062755678 seconds time elapsedSigned-off-by: Ji Sheng Teoh Link: https://lore.kernel.org/r/20240229072720.3987876-2-jisheng.teoh@starfivetech.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

af9597ad - drivers/perf: add DesignWare PCIe PMU driver

Fri, 08 Dec 2023 02:56:51 +0000

drivers/perf: add DesignWare PCIe PMU driverThis commit adds the PCIe Performance Monitoring Unit (PMU) driver supportfor T-Head Yitian SoC chip. Yitian is based on the Synopsys PCI ExpressCore controller IP which provides statistics feature. The PMU is a PCIeconfiguration space register block provided by each PCIe Root Port in aVendor-Specific Extended Capability named RAS D.E.S (Debug, Errorinjection, and Statistics).To facilitate collection of statistics the controller provides thefollowing two features for each Root Port:- one 64-bit counter for Time Based Analysis (RX/TX data throughput and time spent in each low-power LTSSM state) and- one 32-bit counter for Event Counting (error and non-error events for a specified lane)Note: There is no interrupt for counter overflow.This driver adds PMU devices for each PCIe Root Port. And the PMU device isnamed based the BDF of Root Port. For example, 30:03.0 PCI bridge: Device 1ded:8000 (rev 01)the PMU device name for this Root Port is dwc_rootport_3018.Example usage of counting PCIe RX TLP data payload (Units of bytes):: $# perf stat -a -e dwc_rootport_3018/Rx_PCIe_TLP_Data_Payload/average RX bandwidth can be calculated like this: PCIe TX Bandwidth = Rx_PCIe_TLP_Data_Payload / Measure_Time_WindowSigned-off-by: Shuai Xue Reviewed-by: Baolin Wang Reviewed-by: Jonathan Cameron Reviewed-by: Yicong Yang Reviewed-and-tested-by: Ilkka Koskinen Link: https://lore.kernel.org/r/20231208025652.87192-5-xueshuai@linux.alibaba.com[will: Fix sparse error due to use of uninitialised 'vsec' symbol in dwc_pcie_match_des_cap()]Signed-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

7c3f204e - perf/smmuv3: Remove build dependency on ACPI

Thu, 06 Jul 2023 09:23:05 +0000

perf/smmuv3: Remove build dependency on ACPIThis driver supports working without ACPI since commit 3f7be43561766("perf/smmuv3: Add devicetree support"), so remove the build dependency.Signed-off-by: Vincent Whitchurch Reviewed-by: Robin Murphy Link: https://lore.kernel.org/r/20230706-smmuv3-pmu-noacpi-v1-1-7083ef189158@axis.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

5d7107c7 - perf: CXL Performance Monitoring Unit driver

Fri, 26 May 2023 09:58:23 +0000

perf: CXL Performance Monitoring Unit driverCXL rev 3.0 introduces a standard performance monitoring hardwareblock to CXL. Instances are discovered using CXL Register Locator DVSECentries. Each CXL component may have multiple PMUs.This initial driver supports a subset of types of counter.It supports counters that are either fixed or configurable, but requiresthat they support the ability to freeze and write value whilst frozen.Development done with QEMU model which will be posted shortly.Example:$ perf stat -a -e cxl_pmu_mem0.0/h2d_req_snpcur/ -e cxl_pmu_mem0.0/h2d_req_snpdata/ -e cxl_pmu_mem0.0/clock_ticks/ sleep 1Performance counter stats for 'system wide':96,757,023,244,321 cxl_pmu_mem0.0/h2d_req_snpcur/96,757,023,244,365 cxl_pmu_mem0.0/h2d_req_snpdata/193,514,046,488,653 cxl_pmu_mem0.0/clock_ticks/ 1.090539600 seconds time elapsedReviewed-by: Dave Jiang Reviewed-by: Kan Liang Signed-off-by: Jonathan Cameron Link: https://lore.kernel.org/r/20230526095824.16336-5-Jonathan.Cameron@huawei.comSigned-off-by: Dan Williams List of files: /linux-6.15/drivers/perf/Kconfig

55691f99 - drivers/perf: imx_ddr: Add support for NXP i.MX9 SoC DDRC PMU driver

Tue, 18 Apr 2023 10:29:08 +0000

drivers/perf: imx_ddr: Add support for NXP i.MX9 SoC DDRC PMU driverAdd ddr performance monitor support for i.MX93.There are 11 counters for ddr performance events.- Counter 0 is a 64-bit counter that counts only clock cycles.- Counter 1-10 are 32-bit counters that can monitor counter-specific events in addition to counting reference events.For example: perf stat -a -e imx9_ddr0/ddrc_pm_1,counter=1/,imx9_ddr0/ddrc_pm_2,counter=2/ lsBesides, this ddr pmu support AXI filter capability. It's implemented ascounter-specific events. It now supports read transaction, write transactionand read beat events which corresponding respecitively to counter 2, 3 and 4.axi_mask and axi_id need to be as event parameters.For example: perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_trans_filt,counter=2,axi_mask=ID_MASK,axi_id=ID/ perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_wr_trans_filt,counter=3,axi_mask=ID_MASK,axi_id=ID/ perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_beat_filt,counter=4,axi_mask=ID_MASK,axi_id=ID/Signed-off-by: Xu Yang Acked-by: Mark Rutland Link: https://lore.kernel.org/r/20230418102910.2065651-1-xu.yang_2@nxp.com[will: Remove redundant error message on platform_get_irq() failure]Signed-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

009d6dc8 - ARM: perf: Allow the use of the PMUv3 driver on 32bit ARM

Fri, 17 Mar 2023 19:50:26 +0000

ARM: perf: Allow the use of the PMUv3 driver on 32bit ARMThe only thing stopping the PMUv3 driver from compiling on 32bitis the lack of defined system registers names and the handful ofrequired helpers.This is easily solved by providing the sysreg accessors and updatingthe Kconfig entry.Signed-off-by: Marc Zyngier Co-developed-by: Zaid Al-Bassam Signed-off-by: Zaid Al-Bassam Tested-by: Florian Fainelli Link: https://lore.kernel.org/r/20230317195027.3746949-8-zalbassam@google.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

7755cec6 - arm64: perf: Move PMUv3 driver to drivers/perf

Fri, 17 Mar 2023 19:50:20 +0000

arm64: perf: Move PMUv3 driver to drivers/perfHaving the ARM PMUv3 driver sitting in arch/arm64/kernel is gettingin the way of being able to use perf on ARMv8 cores running a 32bitkernel, such as 32bit KVM guests.This patch moves it into drivers/perf/arm_pmuv3.c, with an includefile in include/linux/perf/arm_pmuv3.h. The only thing left inarch/arm64 is some mundane perf stuff.Signed-off-by: Marc Zyngier Signed-off-by: Zaid Al-Bassam Tested-by: Florian Fainelli Link: https://lore.kernel.org/r/20230317195027.3746949-2-zalbassam@google.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

2016e211 - perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver

Mon, 21 Nov 2022 02:15:58 +0000

perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driverAdd support for Amlogic Meson G12 Series SOC - DDR bandwidth PMU driverframework and interfaces. The PMU can not only monitor the total DDRbandwidth, but also individual IP module bandwidth.Signed-off-by: Jiucheng Xu Tested-by: Chris Healy Link: https://lore.kernel.org/r/20221121021602.3306998-1-jiucheng.xu@amlogic.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

13e7accb - genirq: Get rid of GENERIC_MSI_IRQ_DOMAIN

Fri, 11 Nov 2022 13:54:40 +0000

genirq: Get rid of GENERIC_MSI_IRQ_DOMAINAdjust to reality and remove another layer of pointless Kconfigindirection. CONFIG_GENERIC_MSI_IRQ is good enough to serveall purposes.Signed-off-by: Thomas Gleixner Reviewed-by: Jason Gunthorpe Link: https://lore.kernel.org/r/20221111122014.524842979@linutronix.de List of files: /linux-6.15/drivers/perf/Kconfig

e37dfd65 - perf: arm_cspmu: Add support for ARM CoreSight PMU driver

Fri, 11 Nov 2022 22:23:28 +0000

perf: arm_cspmu: Add support for ARM CoreSight PMU driverAdd support for ARM CoreSight PMU driver framework and interfaces.The driver provides generic implementation to operate uncore PMU basedon ARM CoreSight PMU architecture. The driver also provides interfaceto get vendor/implementation specific information, for example eventattributes 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/latestReviewed-by: Suzuki K Poulose Signed-off-by: Besar Wicaksono Link: https://lore.kernel.org/r/20221111222330.48602-2-bwicaksono@nvidia.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

e08d07dd - drivers/perf: ALIBABA_UNCORE_DRW_PMU should depend on ACPI

Tue, 27 Sep 2022 13:37:16 +0000

drivers/perf: ALIBABA_UNCORE_DRW_PMU should depend on ACPIThe Alibaba T-Head Yitian 710 DDR Sub-system Driveway PMU driver reliessolely on ACPI for matching. Hence add a dependency on ACPI, to preventasking the user about this driver when configuring a kernel without ACPIsupport.Fixes: cf7b61073e45 ("drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoC")Signed-off-by: Geert Uytterhoeven Acked-by: Will Deacon Link: https://lore.kernel.org/r/2a4407bb598285660fa5e604e56823ddb12bb0aa.1664285774.git.geert+renesas@glider.beSigned-off-by: Catalin Marinas List of files: /linux-6.15/drivers/perf/Kconfig

cf7b6107 - drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoC

Thu, 18 Aug 2022 03:18:21 +0000

drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoCAdd the DDR Sub-System Driveway Performance Monitoring Unit (PMU) driversupport for Alibaba T-Head Yitian 710 SoC chip. Yitian supports DDR5/4DRAM and targets cloud computing and HPC.Each PMU is registered as a device in /sys/bus/event_source/devices, andusers can select event to monitor in each sub-channel, independently. Forexample, ali_drw_21000 and ali_drw_21080 are two PMU devices for twosub-channels of the same channel in die 0. And the PMU device of die 1 isprefixed with ali_drw_400XXXXX, e.g. ali_drw_40021000.Due to hardware limitation, one of DDRSS Driveway PMU overflow interruptshares the same irq number with MPAM ERR_IRQ. To register DDRSS PMU andMPAM drivers successfully, add IRQF_SHARED flag.Signed-off-by: Shuai Xue Co-developed-by: Hongbo Yao Signed-off-by: Hongbo Yao Co-developed-by: Neng Chen Signed-off-by: Neng Chen Reviewed-by: Jonathan Cameron Reviewed-by: Baolin Wang Link: https://lore.kernel.org/r/20220818031822.38415-3-xueshuai@linux.alibaba.comSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

1d8e926a - perf: MARVELL_CN10K_DDR_PMU should depend on ARCH_THUNDER

Tue, 29 Mar 2022 13:10:10 +0000

perf: MARVELL_CN10K_DDR_PMU should depend on ARCH_THUNDERThe Marvell CN10K DRAM Subsystem (DSS) performance monitor is onlypresent on Marvell CN10K SoCs. Hence add a dependency on ARCH_THUNDER,to prevent asking the user about this driver when configuring a kernelwithout Cavium Thunder (incl. Marvell CN10K) SoC support,Fixes: 68fa55f0e05c ("perf/marvell: cn10k DDR perf event core ownership")Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/18bfd6e1bcf67db7ea656d684a8bbb68261eeb54.1648559364.git.geert+renesas@glider.beSigned-off-by: Will Deacon List of files: /linux-6.15/drivers/perf/Kconfig

e9991434 - RISC-V: Add perf platform driver based on SBI PMU extension

Sat, 19 Feb 2022 00:46:57 +0000

RISC-V: Add perf platform driver based on SBI PMU extensionRISC-V SBI specification added a PMU extension that allows to configurestart/stop any pmu counter. The RISC-V perf can use most of the genericperf features except interrupt overflow and event filtering based onprivilege mode which will be added in future.It also allows to monitor a handful of firmware counters that can provideinsights into firmware activity during a performance analysis.Signed-off-by: Atish Patra Signed-off-by: Atish Patra Signed-off-by: Palmer Dabbelt List of files: /linux-6.15/drivers/perf/Kconfig