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2025-05-16clocksource/drivers/renesas-ostm: Unconditionally enable reprobe supportLad Prabhakar1-3/+1
Previously, the OSTM driver's platform probe path was only enabled for selected SoCs (e.g., RZ/G2L and RZ/V2H) due to issues on RZ/Ax (ARM32) SoCs, which encountered IRQ conflicts like: /soc/timer@e803b000: used for clock events genirq: Flags mismatch irq 16. 00215201 (timer@e803c000) vs. 00215201 (timer@e803c000) Failed to request irq 16 for /soc/timer@e803c000 renesas_ostm e803c000.timer: probe with driver renesas_ostm failed with error -16 These issues have since been resolved by commit 37385c0772a4 ("clocksource/drivers/renesas-ostm: Avoid reprobe after successful early probe"), which prevents reprobe on successfully initialized early timers. With this fix in place, there is no longer a need to restrict platform probing based on SoC-specific configs. This change unconditionally enables reprobe support for all SoCs, simplifying the logic and avoiding the need to update the configuration for every new Renesas SoC with OSTM. Additionally, the `ostm_of_table` is now marked with `__maybe_unused` to fix a build warning when `CONFIG_OF` is disabled. RZ/A1 and RZ/A2 remain unaffected with this change. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20250515182207.329176-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: renesas,ostm: Document RZ/V2N (R9A09G056) supportLad Prabhakar1-6/+6
Document support for the Renesas OS Timer (OSTM) found on the Renesas RZ/V2N (R9A09G056) SoC. The OSTM IP on RZ/V2N is identical to that on other RZ families, so no driver changes are required as `renesas,ostm` will be used as fallback compatible. Also update the bindings to require the "resets" property for RZ/V2N by inverting the logic: all SoCs except RZ/A1 and RZ/A2 now require the "resets" property. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20250515182207.329176-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert marvell,armada-370-timer to DT schemaRob Herring (Arm)2-44/+88
Convert the Marvell Armada 37x/380/XP Timer binding to DT schema format. Update the compatible entries to match what is in use. "marvell,armada-380-timer" in particular was missing. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20250506022301.2588282-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert ti,keystone-timer to DT schemaRob Herring (Arm)2-29/+63
Convert the TI Keystone Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022330.2589598-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert st,spear-timer to DT schemaRob Herring (Arm)2-16/+36
Convert the ST SPEAr Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022326.2589389-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert socionext,milbeaut-timer to DT schemaRob Herring (Arm)2-17/+40
Convert the Socionext Milbeaut Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022322.2589193-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert snps,arc-timer to DT schemaRob Herring (Arm)2-27/+45
Convert the Synopsys ARC Local Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022317.2589010-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert snps,archs-rtc to DT schemaRob Herring (Arm)2-14/+30
Convert the Synopsys ARC HS RTC Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022313.2588796-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert snps,archs-gfrc to DT schemaRob Herring (Arm)2-14/+30
Convert the Synopsys ARC HS 64-bit Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022309.2588605-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert lsi,zevio-timer to DT schemaRob Herring (Arm)2-33/+56
Convert the TI NSPIRE Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022257.2588136-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert jcore,pit to DT schemaRob Herring (Arm)2-24/+43
Convert the J-Core PIT Timer binding to DT schema format. It's a straight-forward conversion. Since the 'reg' entries are based on number of cores, we can't put constraints on it. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022253.2587999-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert img,pistachio-gptimer to DT schemaRob Herring (Arm)2-28/+69
Convert the ImgTec Pistachio Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022249.2587839-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert ezchip,nps400-timer to DT schemaRob Herring (Arm)3-32/+45
Convert the EZChip NPS400 Timer bindings to DT schema format. It's a straight-forward conversion. The 2 bindings only differ in compatible and one required property, so the schemas can be combined. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022237.2587355-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert cirrus,clps711x-timer to DT schemaRob Herring (Arm)2-29/+45
Convert the Cirrus CLPS711x timer binding to DT schema format. It's a straight-forward conversion. Drop the aliases node and second example which aren't relevant. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022215.2586595-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert altr,timer-1.0 to DT schemaRob Herring (Arm)2-18/+39
Convert the Altera Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250506022202.2586157-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Add ESWIN EIC7700 CLINTDarshan Prajapati1-0/+1
Add compatible string for ESWIN EIC7700 CLINT. Signed-off-by: Darshan Prajapati <darshan.prajapati@einfochips.com> Reviewed-by: Samuel Holland <samuel.holland@sifive.com> Signed-off-by: Pinkesh Vaghela <pinkesh.vaghela@einfochips.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20250410152519.1358964-9-pinkesh.vaghela@einfochips.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16clocksource/drivers: Add EcoNet Timer HPT driverCaleb James DeLisle3-0/+225
Introduce a clocksource driver for the so-called high-precision timer (HPT) in the EcoNet EN751221 and EN751627 MIPS SoCs. It's a 32 bit upward-counting one-shot timer which relies on the crystal so it is unaffected by CPU power mode. On MIPS 34K devices (single core) there is one timer, and on 1004K devices (dual core) there are two. Each timer has two sets of count/compare registers so that there is one for each of the VPEs on the core. Because each core has 2 VPEs, register selection takes the CPU number / 2 for the timer corrisponding to the core, then CPU number % 2 for the register corrisponding to the VPE. These timers use a percpu-devid IRQ to route interrupts to the VPE which set the event. Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr> Link: https://lore.kernel.org/r/20250507134500.390547-3-cjd@cjdns.fr Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Add EcoNet EN751221 "HPT" CPU TimerCaleb James DeLisle1-0/+80
Add device tree bindings for the so-called high-precision timer (HPT) in the EcoNet EN751221 SoC. Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250507134500.390547-2-cjd@cjdns.fr Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert arm,mps2-timer to DT schemaRob Herring (Arm)2-28/+49
Convert the Arm MPS2 Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Link: https://lore.kernel.org/r/20250506022210.2586404-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Add Sophgo SG2044 ACLINT timerInochi Amaoto1-0/+1
Like SG2042, SG2044 implements an enhanced ACLINT, so add necessary compatible string for SG2044 SoC. Signed-off-by: Inochi Amaoto <inochiama@gmail.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250413223507.46480-3-inochiama@gmail.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert cnxt,cx92755-timer to DT schemaRob Herring (Arm)2-18/+49
Convert the Conexant Digicolor SoCs Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Acked-by: Baruch Siach <baruch@tkos.co.il> Link: https://lore.kernel.org/r/20250506022232.2587186-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert csky,gx6605s-timer to DT schemaRob Herring (Arm)2-42/+40
Convert the C-SKY gx6605s timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Acked-by: Guo Ren <guoren@kernel.org> Link: https://lore.kernel.org/r/20250506022224.2586860-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert csky,mptimer to DT schemaRob Herring (Arm)2-42/+46
Convert the C-SKY Multi-processor timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Acked-by: Guo Ren <guoren@kernel.org> Link: https://lore.kernel.org/r/20250506022228.2587029-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert marvell,orion-timer to DT schemaRob Herring (Arm)2-16/+43
Convert the Marvell Orion Timer binding to DT schema format. It's a straight-forward conversion. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20250506022305.2588431-1-robh@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16clocksource/drivers/timer-tegra186: Remove unused bitsrobelin1-9/+0
The intention to keep the unsed if(0) block is gone now. Remove them for clean codes. Signed-off-by: robelin <robelin@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20250507044311.3751033-4-robelin@nvidia.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16clocksource/drivers/timer-tegra186: Fix watchdog self-pingingPohsun Su1-27/+0
This change removes watchdog self-pinging behavior. The timer irq handler is triggered due to the 1st expiration, the handler disables and enables watchdog but also implicitly clears the expiration count so the count can only be 0 or 1. Since this watchdog supports opened, configured, or pinged by systemd, We remove this behavior or the watchdog may not bark when systemd crashes since the 5th expiration never comes. Signed-off-by: Pohsun Su <pohsuns@nvidia.com> Signed-off-by: Robert Lin <robelin@nvidia.com> Link: https://lore.kernel.org/r/20250507044311.3751033-3-robelin@nvidia.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16clocksource/drivers/timer-tegra186: Add WDIOC_GETTIMELEFT supportPohsun Su1-1/+63
This change adds support for WDIOC_GETTIMELEFT so userspace programs can get the number of seconds before system reset by the watchdog timer via ioctl. Signed-off-by: Pohsun Su <pohsuns@nvidia.com> Signed-off-by: Robert Lin <robelin@nvidia.com> Link: https://lore.kernel.org/r/20250507044311.3751033-2-robelin@nvidia.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Convert fsl,gtm to YAMLJ. Neuschäfer2-30/+83
Convert fsl,gtm.txt to YAML so that device trees using a Freescale General-purpose Timers Module can be properly validated. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: J. Neuschäfer <j.ne@posteo.net> Link: https://lore.kernel.org/r/20250412-gtm-yaml-v2-1-e4d2292ffefc@posteo.net Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16clocksource/drivers/atmel_tcb: Fix kconfig dependencyArnd Bergmann1-2/+2
Build-testing this driver on arm without CONFIG_OF produces a warning: drivers/clocksource/timer-atmel-tcb.c:368:34: error: 'atmel_tcb_of_match' defined but not used [-Werror=unused-const-variable=] 368 | static const struct of_device_id atmel_tcb_of_match[] = { | ^~~~~~~~~~~~~~~~~~ Change the dependency to require CONFIG_OF for build testing to avoid the warning. Testing remains possible on all architectures as CONFIG_OF is user-selectable. Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Claudiu Beznea <claudiu.beznea@tuxon.dev> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20250409155313.1096915-1-arnd@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16clocksource/drivers/nxp-timer: Add the System Timer Module for the s32gx ↵Daniel Lezcano3-0/+504
platforms STM supports commonly required system and application software timing functions. STM includes a 32-bit count-up timer and four 32-bit compare channels with a separate interrupt source for each channel. The timer is driven by the STM module clock divided by an 8-bit prescale value (1 to 256). STM has the following features: • One 32-bit count-up timer with an 8-bit prescaler • Four 32-bit compare channels • An independent interrupt source for each channel • Ability to stop the timer in Debug mode The s32g platform is declined into two versions, the s32g2 and the s32g3. The former has a STM block with 8 timers and the latter has 12 timers. The platform is designed to have one usable STM instance per core on the system which is composed of 3 x Cortex-M3 + 4 Cortex-A53 for the s32g2 and 3 x Cortex-M3 + 8 Cortex-A53 for the s32g3. There is a special STM instance called STM_TS which is dedicated to the timestamp. The 7th STM instance STM_07 is directly tied to the STM_TS which means it is not usable as a clockevent. The driver instantiate each STM described in the device tree as a clocksource and a clockevent conforming to the reference manual even if the Linux system does not use all of the clocksource. Each clockevent will have a cpumask set for a specific CPU. Given the counter is shared between the clocksource and the clockevent, the STM module can not be disabled by one or another so the refcounting mechanism is used to stop the counter when it reaches zero and to start it when it is one. The suspend and resume relies on the refcount to stop the module. As the device tree will have multiple STM entries, the driver can be probed in parallel with the async option but it is not enabled yet. However, the driver code takes care of preventing a race by putting a lock to protect the number of STM instances global variable which means it is ready to support the option when enough testing will be done with the underlying time framework. Cc: Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Thomas Fossati <thomas.fossati@linaro.org> Suggested-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com> Link: https://lore.kernel.org/r/20250417151623.121109-3-daniel.lezcano@linaro.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16dt-bindings: timer: Add NXP System Timer ModuleDaniel Lezcano1-0/+64
Add the System Timer Module description found on the NXP s32 platform and the compatible for the s32g2 variant. Cc: Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com> Cc: Thomas Fossati <thomas.fossati@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250417151623.121109-2-daniel.lezcano@linaro.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-04-06Linux 6.15-rc1Linus Torvalds1-2/+2
2025-04-06tools/include: make uapi/linux/types.h usable from assemblyThomas Weißschuh1-0/+3
The "real" linux/types.h UAPI header gracefully degrades to a NOOP when included from assembly code. Mirror this behaviour in the tools/ variant. Test for __ASSEMBLER__ over __ASSEMBLY__ as the former is provided by the toolchain automatically. Reported-by: Mark Brown <broonie@kernel.org> Closes: https://lore.kernel.org/lkml/af553c62-ca2f-4956-932c-dd6e3a126f58@sirena.org.uk/ Fixes: c9fbaa879508 ("selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Link: https://patch.msgid.link/20250321-uapi-consistency-v1-1-439070118dc0@linutronix.de Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-06Merge tag 'turbostat-2025.05.06' of ↵Linus Torvalds2-43/+135
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat updates from Len Brown: - support up to 8192 processors - add cpuidle governor debug telemetry, disabled by default - update default output to exclude cpuidle invocation counts - bug fixes * tag 'turbostat-2025.05.06' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: v2025.05.06 tools/power turbostat: disable "cpuidle" invocation counters, by default tools/power turbostat: re-factor sysfs code tools/power turbostat: Restore GFX sysfs fflush() call tools/power turbostat: Document GNR UncMHz domain convention tools/power turbostat: report CoreThr per measurement interval tools/power turbostat: Increase CPU_SUBSET_MAXCPUS to 8192 tools/power turbostat: Add idle governor statistics reporting tools/power turbostat: Fix names matching tools/power turbostat: Allow Zero return value for some RAPL registers tools/power turbostat: Clustered Uncore MHz counters should honor show/hide options
2025-04-06Merge tag 'soundwire-6.15-rc1-fixes' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire Pull soundwire fix from Vinod Koul: - add missing config symbol CONFIG_SND_HDA_EXT_CORE required for asoc driver CONFIG_SND_SOF_SOF_HDA_SDW_BPT * tag 'soundwire-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: ASoC: SOF: Intel: Let SND_SOF_SOF_HDA_SDW_BPT select SND_HDA_EXT_CORE
2025-04-06tools/power turbostat: v2025.05.06Len Brown1-1/+1
Support up to 8192 processors Add cpuidle governor debug telemetry, disabled by default Update default output to exclude cpuidle invocation counts Bug fixes Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06tools/power turbostat: disable "cpuidle" invocation counters, by defaultLen Brown2-13/+33
Create "pct_idle" counter group, the sofware notion of residency so it can now be singled out, independent of other counter groups. Create "cpuidle" group, the cpuidle invocation counts. Disable "cpuidle", by default. Create "swidle" = "cpuidle" + "pct_idle". Undocument "sysfs", the old name for "swidle", but keep it working for backwards compatibilty. Create "hwidle", all the HW idle counters Modify "idle", enabled by default "idle" = "hwidle" + "pct_idle" (and now excludes "cpuidle") Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06Merge tag 'perf-urgent-2025-04-06' of ↵Linus Torvalds1-9/+9
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf event fix from Ingo Molnar: "Fix a perf events time accounting bug" * tag 'perf-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix child_total_time_enabled accounting bug at task exit
2025-04-06Merge tag 'sched-urgent-2025-04-06' of ↵Linus Torvalds3-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: - Fix a nonsensical Kconfig combination - Remove an unnecessary rseq-notification * tag 'sched-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rseq: Eliminate useless task_work on execve sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP
2025-04-06Disable SLUB_TINY for build testingLinus Torvalds2-2/+2
... and don't error out so hard on missing module descriptions. Before commit 6c6c1fc09de3 ("modpost: require a MODULE_DESCRIPTION()") we used to warn about missing module descriptions, but only when building with extra warnigns (ie 'W=1'). After that commit the warning became an unconditional hard error. And it turns out not all modules have been converted despite the claims to the contrary. As reported by Damian Tometzki, the slub KUnit test didn't have a module description, and apparently nobody ever really noticed. The reason nobody noticed seems to be that the slub KUnit tests get disabled by SLUB_TINY, which also ends up disabling a lot of other code, both in tests and in slub itself. And so anybody doing full build tests didn't actually see this failre. So let's disable SLUB_TINY for build-only tests, since it clearly ends up limiting build coverage. Also turn the missing module descriptions error back into a warning, but let's keep it around for non-'W=1' builds. Reported-by: Damian Tometzki <damian@riscv-rocks.de> Link: https://lore.kernel.org/all/01070196099fd059-e8463438-7b1b-4ec8-816d-173874be9966-000000@eu-central-1.amazonses.com/ Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Jeff Johnson <jeff.johnson@oss.qualcomm.com> Fixes: 6c6c1fc09de3 ("modpost: require a MODULE_DESCRIPTION()") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-06tools/power turbostat: re-factor sysfs codeLen Brown1-10/+21
Probe cpuidle "sysfs" residency and counts separately, since soon we will make one disabled on, and the other disabled off. Clarify that some BIC (build-in-counters) are actually "groups". since we're about to re-name some of those groups. no functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06tools/power turbostat: Restore GFX sysfs fflush() callZhang Rui1-0/+1
Do fflush() to discard the buffered data, before each read of the graphics sysfs knobs. Fixes: ba99a4fc8c24 ("tools/power turbostat: Remove unnecessary fflush() call") Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06tools/power turbostat: Document GNR UncMHz domain conventionLen Brown1-0/+1
Document that on Intel Granite Rapids Systems, Uncore domains 0-2 are CPU domains, and uncore domains 3-4 are IO domains. Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06tools/power turbostat: report CoreThr per measurement intervalLen Brown2-1/+3
The CoreThr column displays total thermal throttling events since boot time. Change it to report events during the measurement interval. This is more useful for showing a user the current conditions. Total events since boot time are still available to the user via /sys/devices/system/cpu/cpu*/thermal_throttle/* Document CoreThr on turbostat.8 Fixes: eae97e053fe30 ("turbostat: Support thermal throttle count print") Reported-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Cc: Chen Yu <yu.c.chen@intel.com>
2025-04-06tools/power turbostat: Increase CPU_SUBSET_MAXCPUS to 8192Justin Ernst1-1/+1
On systems with >= 1024 cpus (in my case 1152), turbostat fails with the error output: "turbostat: /sys/fs/cgroup/cpuset.cpus.effective: cpu str malformat 0-1151" A similar error appears with the use of turbostat --cpu when the inputted cpu range contains a cpu number >= 1024: # turbostat -c 1100-1151 "--cpu 1100-1151" malformed ... Both errors are caused by parse_cpu_str() reaching its limit of CPU_SUBSET_MAXCPUS. It's a good idea to limit the maximum cpu number being parsed, but 1024 is too low. For a small increase in compute and allocated memory, increasing CPU_SUBSET_MAXCPUS brings support for parsing cpu numbers >= 1024. Increase CPU_SUBSET_MAXCPUS to 8192, a common setting for CONFIG_NR_CPUS on x86_64. Signed-off-by: Justin Ernst <justin.ernst@hpe.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06Merge tag 'timers-cleanups-2025-04-06' of ↵Linus Torvalds796-1718/+1650
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer cleanups from Thomas Gleixner: "A set of final cleanups for the timer subsystem: - Convert all del_timer[_sync]() instances over to the new timer_delete[_sync]() API and remove the legacy wrappers. Conversion was done with coccinelle plus some manual fixups as coccinelle chokes on scoped_guard(). - The final cleanup of the hrtimer_init() to hrtimer_setup() conversion. This has been delayed to the end of the merge window, so that all patches which have been merged through other trees are in mainline and all new users are catched. Doing this right before rc1 ensures that new code which is merged post rc1 is not introducing new instances of the original functionality" * tag 'timers-cleanups-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tracing/timers: Rename the hrtimer_init event to hrtimer_setup hrtimers: Rename debug_init_on_stack() to debug_setup_on_stack() hrtimers: Rename debug_init() to debug_setup() hrtimers: Rename __hrtimer_init_sleeper() to __hrtimer_setup_sleeper() hrtimers: Remove unnecessary NULL check in hrtimer_start_range_ns() hrtimers: Make callback function pointer private hrtimers: Merge __hrtimer_init() into __hrtimer_setup() hrtimers: Switch to use __htimer_setup() hrtimers: Delete hrtimer_init() treewide: Convert new and leftover hrtimer_init() users treewide: Switch/rename to timer_delete[_sync]()
2025-04-06Merge tag 'irq-urgent-2025-04-06' of ↵Linus Torvalds36-54/+54
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull more irq updates from Thomas Gleixner: "A set of updates for the interrupt subsystem: - A treewide cleanup for the irq_domain code, which makes the naming consistent and gets rid of the original oddity of naming domains 'host'. This is a trivial mechanical change and is done late to ensure that all instances have been catched and new code merged post rc1 wont reintroduce new instances. - A trivial consistency fix in the migration code The recent introduction of irq_force_complete_move() in the core code, causes a problem for the nostalgia crowd who maintains ia64 out of tree. The code assumes that hierarchical interrupt domains are enabled and dereferences irq_data::parent_data unconditionally. That works in mainline because both architectures which enable that code have hierarchical domains enabled. Though it breaks the ia64 build, which enables the functionality, but does not have hierarchical domains. While it's not really a problem for mainline today, this unconditional dereference is inconsistent and trivially fixable by using the existing helper function irqd_get_parent_data(), which has the appropriate #ifdeffery in place" * tag 'irq-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/migration: Use irqd_get_parent_data() in irq_force_complete_move() irqdomain: Stop using 'host' for domain irqdomain: Rename irq_get_default_host() to irq_get_default_domain() irqdomain: Rename irq_set_default_host() to irq_set_default_domain()
2025-04-06Merge tag 'timers-urgent-2025-04-06' of ↵Linus Torvalds1-69/+25
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Thomas Gleixner: "A revert to fix a adjtimex() regression: The recent change to prevent that time goes backwards for the coarse time getters due to immediate multiplier adjustments via adjtimex(), changed the way how the timekeeping core treats that. That change result in a regression on the adjtimex() side, which is user space visible: 1) The forwarding of the base time moves the update out of the original period and establishes a new one. That's changing the behaviour of the [PF]LL control, which user space expects to be applied periodically. 2) The clearing of the accumulated NTP error due to #1, changes the behaviour as well. An attempt to delay the multiplier/frequency update to the next tick did not solve the problem as userspace expects that the multiplier or frequency updates are in effect, when the syscall returns. There is a different solution for the coarse time problem available, so revert the offending commit to restore the existing adjtimex() behaviour" * tag 'timers-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "timekeeping: Fix possible inconsistencies in _COARSE clockids"
2025-04-06Merge tag 'sh-for-v6.15-tag1' of ↵Linus Torvalds5-5/+14
git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux Pull sh updates from John Paul Adrian Glaubitz: "One important fix and one small configuration update. The first patch by Artur Rojek fixes an issue with the J2 firmware loader not being able to find the location of the device tree blob due to insufficient alignment of the .bss section which rendered J2 boards unbootable. The second patch by Johan Korsnes updates the defconfigs on sh to drop the CONFIG_NET_CLS_TCINDEX configuration option which became obsolete after 8c710f75256b ("net/sched: Retire tcindex classifier"). Summary: - sh: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEX - sh: Align .bss section padding to 8-byte boundary" * tag 'sh-for-v6.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux: sh: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEX sh: Align .bss section padding to 8-byte boundary
2025-04-06Merge tag 'kbuild-v6.15' of ↵Linus Torvalds62-350/+890
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Improve performance in gendwarfksyms - Remove deprecated EXTRA_*FLAGS and KBUILD_ENABLE_EXTRA_GCC_CHECKS - Support CONFIG_HEADERS_INSTALL for ARCH=um - Use more relative paths to sources files for better reproducibility - Support the loong64 Debian architecture - Add Kbuild bash completion - Introduce intermediate vmlinux.unstripped for architectures that need static relocations to be stripped from the final vmlinux - Fix versioning in Debian packages for -rc releases - Treat missing MODULE_DESCRIPTION() as an error - Convert Nios2 Makefiles to use the generic rule for built-in DTB - Add debuginfo support to the RPM package * tag 'kbuild-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits) kbuild: rpm-pkg: build a debuginfo RPM kconfig: merge_config: use an empty file as initfile nios2: migrate to the generic rule for built-in DTB rust: kbuild: skip `--remap-path-prefix` for `rustdoc` kbuild: pacman-pkg: hardcode module installation path kbuild: deb-pkg: don't set KBUILD_BUILD_VERSION unconditionally modpost: require a MODULE_DESCRIPTION() kbuild: make all file references relative to source root x86: drop unnecessary prefix map configuration kbuild: deb-pkg: add comment about future removal of KDEB_COMPRESS kbuild: Add a help message for "headers" kbuild: deb-pkg: remove "version" variable in mkdebian kbuild: deb-pkg: fix versioning for -rc releases Documentation/kbuild: Fix indentation in modules.rst example x86: Get rid of Makefile.postlink kbuild: Create intermediate vmlinux build with relocations preserved kbuild: Introduce Kconfig symbol for linking vmlinux with relocations kbuild: link-vmlinux.sh: Make output file name configurable kbuild: do not generate .tmp_vmlinux*.map when CONFIG_VMLINUX_MAP=y Revert "kheaders: Ignore silly-rename files" ...