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1,381,734 commits

Author SHA1 Message Date
Marc Zyngier
4e9bfe6969 clocksource/drivers/arm_arch_timer_mmio: Add MMIO clocksource
The MMIO driver can also double as a clocksource, something that was
missing in its previous incarnation. Add it for completeness.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20250814154622.10193-5-maz@kernel.org
2025-09-23 12:32:08 +02:00
Marc Zyngier
0f67b56d84 clocksource/drivers/arm_arch_timer_mmio: Switch over to standalone driver
Remove all the MMIO support from the per-CPU timer driver, and switch
over to the standalove driver.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20250814154622.10193-4-maz@kernel.org
2025-09-23 12:31:50 +02:00
Marc Zyngier
4891f01527 clocksource/drivers/arm_arch_timer: Add standalone MMIO driver
Add a new driver for the MMIO side of the ARM architected timer.
Most of it has been lifted from the existing arch timer code,
massaged, and finally rewritten.

It supports both DT and ACPI as firmware descriptions.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20250814154622.10193-3-maz@kernel.org
2025-09-23 12:31:15 +02:00
Marc Zyngier
5669d92f3e ACPI: GTDT: Generate platform devices for MMIO timers
In preparation for the MMIO timer support code becoming an actual
driver, mimic what is done for the SBSA watchdog and expose
a synthetic device for each MMIO timer block.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20250807160243.1970533-2-maz@kernel.org
2025-09-23 12:30:25 +02:00
Daniel Lezcano
bee33f22d7 clocksource/drivers/nxp-pit: Add NXP Automotive s32g2 / s32g3 support
The previous changes put in place the encapsulation of the code in
order to allow multiple instances of the driver.

The S32G platform has two Periodic Interrupt Timer (PIT). The IP is
exactly the same as the VF platform.

Each PIT has four channels which are 32 bits wide and counting
down. The two first channels can be chained to implement a 64 bits
counter. The channel usage is kept unchanged with the original driver,
channel 2 is used as a clocksource, channel 3 is used as a
clockevent. Other channels are unused.

In order to support the S32G platform which has two PIT, we initialize
the timer and bind it to a CPU. The S32G platforms can have 2, 4 or 8
CPUs and this kind of configuration can appear unusual as we may endup
with two PIT used as a clockevent for the two first CPUs while the
other CPUs use the architected timers. However, in the context of the
automotive, the platform can be partioned to assign 2 CPUs for Linux
and the others CPUs to third party OS. The PIT is then used with their
specifities like the ability to freeze the time which is needed for
instance for debugging purpose.

The setup found for this platform is each timer instance is bound to
CPU0 and CPU1.

A counter is incremented when a timer is successfully initialized and
assigned to a CPU. This counter is used as an index for the CPU number
and to detect when we reach the maximum possible instances for the
platform. That in turn triggers the CPU hotplug callbacks to achieve
the per CPU setup. It is the exact same mechanism found in the NXP STM
driver.

If the timers must be bound to different CPUs, it would require an
additionnal mechanism which is not part of these changes.

Tested on a s32g274a-rdb2.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-21-daniel.lezcano@linaro.org
2025-09-23 12:30:19 +02:00
Daniel Lezcano
adaf5b248f dt: bindings: fsl,vf610-pit: Add compatible for s32g2 and s32g3
The Vybrid Family is a NXP (formerly Freescale) platform having a
Programmable Interrupt Timer (PIT). This timer is an IP found also on
the NXP Automotive platform S32G2 and S32G3.

Add the compatible for those platforms to describe the timer.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-20-daniel.lezcano@linaro.org
2025-09-23 12:30:11 +02:00
Daniel Lezcano
fc346a155f clocksource/drivers/vf-pit: Rename the VF PIT to NXP PIT
The PIT acronym stands for Periodic Interrupt Timer which is found on
different NXP platforms not only on the Vybrid Family. Change the name
to be more generic for the NXP platforms in general. That will be
consistent with the NXP STM driver naming convention.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-19-daniel.lezcano@linaro.org
2025-09-23 12:30:05 +02:00
Daniel Lezcano
3c34321e9b clocksource/drivers/vf-pit: Unify the function name for irq ack
Most the function are under the form pit_timer_*, let's change the
interrupt acknowledgment function name to have the same format.

No functional changes intended.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-18-daniel.lezcano@linaro.org
2025-09-23 12:30:00 +02:00
Daniel Lezcano
5ba405c719 clocksource/drivers/vf-pit: Consolidate calls to pit_*_disable/enable
The difference between the pit_clocksource_enable() and
pit_clocksource_disable() is only setting the TIF flag for the
clockevent. Let's group them and pass the TIF flag parameter to the
function so we save some lines of code. But as the base address is
different regarding if it is a clocksource or a clockevent, we pass
the base address in parameter instead of the struct pit_timer.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-17-daniel.lezcano@linaro.org
2025-09-23 12:29:55 +02:00
Daniel Lezcano
46e83e4afc clocksource/drivers/vf-pit: Encapsulate set counter function
Encapsulate the writel() calls to set the counter into a
self-explainatory function.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-16-daniel.lezcano@linaro.org
2025-09-23 12:29:50 +02:00
Daniel Lezcano
13cea8527c clocksource/drivers/vf-pit: Enable and disable module on error
Encapsulate the calls to writel to enable and disable the PIT module
and make use of them. Add the missing module disablement in case of
error.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-15-daniel.lezcano@linaro.org
2025-09-23 12:29:45 +02:00
Daniel Lezcano
fcf25b4427 clocksource/drivers/vf-pit: Encapsulate clocksource enable / disable
For the sake of lisibility, let's encapsulate the writel calls to
enable and disable the timer into a function with a self-explainatory
name.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-14-daniel.lezcano@linaro.org
2025-09-23 12:29:39 +02:00
Daniel Lezcano
7201c95c25 clocksource/drivers/vf-pit: Use the node name for the interrupt and timer names
In order to differentiate from userspace the pit timer given the
device tree, let's use the node name for the interrupt and the timer
names.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-13-daniel.lezcano@linaro.org
2025-09-23 12:29:34 +02:00
Daniel Lezcano
d8629b9b2c clocksource/drivers/vf-pit: Encapsulate the PTLCVAL macro
Pass the channel and the base address to the PITLCVAL macro so it is
possible to use multiple instances of the timer with the macro.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-12-daniel.lezcano@linaro.org
2025-09-23 12:29:29 +02:00
Daniel Lezcano
1ba63930e7 clocksource/drivers/vf-pit: Encapsulate the macros
Pass the base address to the macro, so we can use the macro with
multiple instances of the timer because we deal with different base
address. At the same time, change writes to the register to the
existing corresponding functions.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-11-daniel.lezcano@linaro.org
2025-09-23 12:29:22 +02:00
Daniel Lezcano
c106b698ab clocksource/drivers/vf-pit: Register the clocksource from the driver
The function clocksource_mmio_init() uses its own global static
clocksource variable making no possible to have several instances of a
clocksource using this function. In order to support that, let's add
the clocksource structure to the pit structure and use the
clocksource_register_hz() function instead.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-10-daniel.lezcano@linaro.org
2025-09-23 12:29:15 +02:00
Daniel Lezcano
0c063c9afc clocksource/drivers/vf-pit: Convert raw values to BIT macros
Use the BIT macros instead of the shifting syntax.

No functional change intended.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-9-daniel.lezcano@linaro.org
2025-09-23 12:29:09 +02:00
Daniel Lezcano
375fbfc66c clocksource/drivers/vf-pit: Allocate the struct timer at init time
Instead of having a static global structure for a timer, let's
allocate it dynamically so we can create multiple instances in the
future to support multiple timers. At the same time, add the
rollbacking code in case of error.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-8-daniel.lezcano@linaro.org
2025-09-23 12:29:02 +02:00
Daniel Lezcano
8b0795e0fc clocksource/drivers/vf-pit: Encapsulate the initialization of the cycles_per_jiffy
Move the cycles_per_jiffy initialization to the same place where the
other pit timer fields are initialized.

No functional changes intended.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-7-daniel.lezcano@linaro.org
2025-09-23 12:28:56 +02:00
Daniel Lezcano
995ebf1604 clocksource/drivers/vf-pit: Pass the cpu number as parameter
In order to initialize the timer with a cpumask tied to a cpu, let's
pass it as a parameter instead of hardwiring it in the init function.

No functional changes intended.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-6-daniel.lezcano@linaro.org
2025-09-23 12:28:50 +02:00
Daniel Lezcano
3615803179 clocksource/drivers/vf-pit: Rework the base address usage
This change passes the base address to the clockevent and clocksource
initialization functions in order to use different base address in the
next changes.

No functional changes intended.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-5-daniel.lezcano@linaro.org
2025-09-23 12:28:42 +02:00
Daniel Lezcano
3996232e6e clocksource/drivers/vf-pit: Set the scene for multiple timers
The driver is implemented as using a single timer and a single
clocksource. In order to take advantage of the multiple timers
supported in the PIT hardware and introduce different setup for a new
platform, let's encapsulate the data into a structure and pass this
structure around in the function parameter. The structure will be a
per timer instansiation in the next changes.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-4-daniel.lezcano@linaro.org
2025-09-23 12:28:32 +02:00
Daniel Lezcano
2decd0b63e clocksource/drivers/vf-pit: Add COMPILE_TEST option
The VF PIT driver is a silent koption. In order to allow a better
compilation test coverage, let's add the COMPILE_TEST option so it can
be selected on other platforms than the Vybrid Family.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250804152344.1109310-3-daniel.lezcano@linaro.org
2025-09-23 12:28:25 +02:00
Daniel Lezcano
0b781f527d clocksource/drivers/vf-pit: Replace raw_readl/writel to readl/writel
The driver uses the raw_readl() and raw_writel() functions. Those are
not for MMIO devices. Replace them with readl() and writel()

[ dlezcano: Fixed typo in the subject s/reald/readl/ ]

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20250804152344.1109310-2-daniel.lezcano@linaro.org
2025-09-23 12:27:53 +02:00
AngeloGioacchino Del Regno
99d19715da dt-bindings: timer: mediatek,timer: Add MediaTek MT8196 compatible
Add a new compatible for the MediaTek MT8196 SoC, fully compatible
with MT6765.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250611110800.458164-2-angelogioacchino.delregno@collabora.com
2025-09-23 10:56:29 +02:00
Chen Ni
d27b4e33c9 clocksource/timer-econet-en751221: Convert comma to semicolon
Replace comma between expressions with semicolons.

Using a ',' in place of a ';' can have unintended side effects.
Although that is not the case here, it is seems best to use ';'
unless ',' is intended.

Found by inspection. No functional change intended.
Compile tested only.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Caleb James DeLisle <cjd@cjdns.fr>
Link: https://lore.kernel.org/r/20250603060450.1310204-1-nichen@iscas.ac.cn
2025-09-23 10:56:13 +02:00
Frank Li
ffc5870fc4 dt-bindings: timer: Add fsl,timrot.yaml
Add fsl,timrot.yaml for i.MX23/i.MX28 timer.

Also add a generic fallback compatible string "fsl,timrot" for legacy
devices, which have existed for over 15 years.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250528165351.691848-1-Frank.Li@nxp.com
2025-09-23 10:56:05 +02:00
Arnd Bergmann
409f8fe03e clocksource/drivers/tegra186: Avoid 64-bit division
The newly added function causes a build failure on 32-bit targets with
older compiler version such as gcc-10:

arm-linux-gnueabi-ld: drivers/clocksource/timer-tegra186.o: in function `tegra186_wdt_get_timeleft':
timer-tegra186.c:(.text+0x3c2): undefined reference to `__aeabi_uldivmod'

The calculation can trivially be changed to avoid the division entirely,
as USEC_PER_SEC is a multiple of 5. Change both such calculation for
consistency, even though gcc apparently managed to optimize the other one
properly already.

[dlezcano : Fixed conflict with 20250614175556.922159-2-linux@roeck-us.net ]

Fixes: 28c842c8b0 ("clocksource/drivers/timer-tegra186: Add WDIOC_GETTIMELEFT support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250620111939.3395525-1-arnd@kernel.org
2025-09-23 10:55:12 +02:00
Guenter Roeck
7f3abae5b4 clocksource/drivers/timer-tegra186: Simplify calculating timeleft
It is not necessary to use 64-bit operations to calculate the
remaining watchdog timeout. Simplify to use 32-bit operations,
and add comments explaining why there will be no overflow.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Cc: Pohsun Su <pohsuns@nvidia.com>
Cc: Robert Lin <robelin@nvidia.com>
Link: https://lore.kernel.org/r/20250614175556.922159-2-linux@roeck-us.net
2025-09-23 10:54:58 +02:00
Guenter Roeck
916aa36042 clocksource/drivers/timer-tegra186: Avoid 64-bit divide operation
Building the driver on xtensa fails with

tensa-linux-ld: drivers/clocksource/timer-tegra186.o:
	in function `tegra186_timer_remove':
timer-tegra186.c:(.text+0x350):
	undefined reference to `__udivdi3'

Avoid the problem by rearranging the offending code to avoid the 64-bit
divide operation.

Fixes: 28c842c8b0 ("clocksource/drivers/timer-tegra186: Add WDIOC_GETTIMELEFT support")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Cc: Pohsun Su <pohsuns@nvidia.com>
Cc: Robert Lin <robelin@nvidia.com>
Link: https://lore.kernel.org/r/20250614175556.922159-1-linux@roeck-us.net
2025-09-23 10:54:29 +02:00
Will McVicker
be26ec8b14 of/irq: Export of_irq_count for modules
Need to export `of_irq_count` in preparation for modularizing the Exynos
MCT driver which uses this API for setting up the timer IRQs.

Signed-off-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Youngmin Nam <youngmin.nam@samsung.com>
Reviewed-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Reviewed-by: Youngmin Nam <youngmin.nam@samsung.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20250620181719.1399856-2-willmcvicker@google.com
2025-09-23 10:53:53 +02:00
Frank Li
c1ff9e919a dt-bindings: timer: fsl,ftm-timer: use items for reg
The original txt binding doc is:
  reg : Specifies base physical address and size of the register sets for
        the clock event device and clock source device.

And existed dts provide two reg MMIO spaces. So change to use items to
descript reg property.

Update examples.

Fixes: 8fc30d8f8e ("dt-bindings: timer: fsl,ftm-timer: Convert to dtschema")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250523141437.533643-1-Frank.Li@nxp.com
2025-09-23 10:53:37 +02:00
Max Shevchenko
bb7bf8b44d dt-bindings: timer: mediatek: add MT6572
Add a compatible string for timer on the MT6572 SoC.

Signed-off-by: Max Shevchenko <wctrl@proton.me>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250702-mt6572-v4-3-bde75b7ed445@proton.me
2025-09-23 10:53:12 +02:00
Rob Herring (Arm)
ef0e000cd1 dt-bindings: timer: Convert faraday,fttmr010 to DT schema
Convert the Faraday fttmr010 Timer binding to DT schema format. Adjust
the compatible string values to match what's in use. The number of
interrupts can also be anywhere from 1 to 8. The clock-names order was
reversed compared to what's used.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250611232621.1508116-1-robh@kernel.org
2025-09-23 10:52:51 +02:00
Daniel Lezcano
84b1a903ae time/sched_clock: Export symbol for sched_clock register function
The timer drivers could be converted into modules. The different
functions to register the clocksource or the clockevent are already
exporting their symbols for modules but the sched_clock_register()
function is missing.

Export the symbols so the drivers using this function can be converted
into modules.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Carlos Llamas <cmllamas@google.com>
Reviewed-by: Will McVicker <willmcvicker@google.com>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/r/20250602151853.1942521-8-daniel.lezcano@linaro.org
2025-09-23 10:52:31 +02:00
Daniel Lezcano
eea65574e2 clocksource/drivers/cs5535: Add module owner
The conversion to modules requires a correct handling of the module
refcount in order to prevent to unload it if it is in use. That is
especially true with the clockevents where there is no function to
unregister them.

The core time framework correctly handles the module refcount with the
different clocksource and clockevents if the module owner is set.

Add the module owner to make sure the core framework will prevent
stupid things happening when the driver will be converted into a
module.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Will McVicker <willmcvicker@google.com>
Link: https://lore.kernel.org/r/20250602151853.1942521-7-daniel.lezcano@linaro.org
2025-09-23 10:52:23 +02:00
Daniel Lezcano
edef59887b clocksource/drivers/stm: Add module owner
The conversion to modules requires a correct handling of the module
refcount in order to prevent to unload it if it is in use. That is
especially true with the clockevents where there is no function to
unregister them.

The core time framework correctly handles the module refcount with the
different clocksource and clockevents if the module owner is set.

Add the module owner to make sure the core framework will prevent
stupid things happening when the driver will be converted into a
module.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Will McVicker <willmcvicker@google.com>
Link: https://lore.kernel.org/r/20250602151853.1942521-6-daniel.lezcano@linaro.org
2025-09-23 10:52:13 +02:00
Daniel Lezcano
afe904f509 clocksource/drivers/tegra186: Add module owner
The conversion to modules requires a correct handling of the module
refcount in order to prevent to unload it if it is in use. That is
especially true with the clockevents where there is no function to
unregister them.

The core time framework correctly handles the module refcount with the
different clocksource and clockevents if the module owner is set.

Add the module owner to make sure the core framework will prevent
stupid things happening when the driver will be converted into a
module.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Will McVicker <willmcvicker@google.com>
Link: https://lore.kernel.org/r/20250602151853.1942521-5-daniel.lezcano@linaro.org
2025-09-23 10:52:04 +02:00
Daniel Lezcano
376d11d327 clocksource/drivers/sun5i: Add module owner
The conversion to modules requires a correct handling of the module
refcount in order to prevent to unload it if it is in use. That is
especially true with the clockevents where there is no function to
unregister them.

The core time framework correctly handles the module refcount with the
different clocksource and clockevents if the module owner is set.

Add the module owner to make sure the core framework will prevent
stupid things happening when the driver will be converted into a
module.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Will McVicker <willmcvicker@google.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20250602151853.1942521-4-daniel.lezcano@linaro.org
2025-09-23 10:51:44 +02:00
Daniel Lezcano
2cf51ab7f5 clocksource/drivers/stm32-lp: Add module owner
The conversion to modules requires a correct handling of the module
refcount in order to prevent to unload it if it is in use. That is
especially true with the clockevents where there is no function to
unregister them.

The core time framework correctly handles the module refcount with the
different clocksource and clockevents if the module owner is set.

Add the module owner to make sure the core framework will prevent
stupid things happening when the driver will be converted into a
module.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Will McVicker <willmcvicker@google.com>
Link: https://lore.kernel.org/r/20250602151853.1942521-3-daniel.lezcano@linaro.org
2025-09-23 10:51:21 +02:00
Daniel Lezcano
d6bfdeb4fd clocksource/drivers/scx200: Add module owner
The conversion to modules requires a correct handling of the module
refcount in order to prevent to unload it if it is in use. That is
especially true with the clockevents where there is no function to
unregister them.

The core time framework correctly handles the module refcount with the
different clocksource and clockevents if the module owner is set.

Add the module owner to make sure the core framework will prevent
stupid things happening when the driver will be converted into a
module.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Will McVicker <willmcvicker@google.com>
Link: https://lore.kernel.org/r/20250602151853.1942521-2-daniel.lezcano@linaro.org
2025-09-23 10:21:24 +02:00
Linus Torvalds
8f5ae30d69 Linux 6.17-rc1 v6.17-rc1 2025-08-10 19:41:16 +03:00
Linus Torvalds
2b38afce25 tools/power turbostat: version 2025.09.09
Probe and display L3 Cache topology
 Add ability to average an added counter
 	(useful for pre-integrated "counters", such as Watts)
 Break the limit of 64 built-in counters.
 Assorted bug fixes and minor feature tweaks
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Merge tag 'turbostat-2025.09.09' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:
 "tools/power turbostat: version 2025.09.09

   - Probe and display L3 Cache topology

   - Add ability to average an added counter (useful for pre-integrated
     "counters", such as Watts)

   - Break the limit of 64 built-in counters

   - Assorted bug fixes and minor feature tweaks"

* tag 'turbostat-2025.09.09' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: version 2025.09.09
  tools/power turbostat: Handle non-root legacy-uncore sysfs permissions
  tools/power turbostat: standardize PER_THREAD_PARAMS
  tools/power turbostat: Fix DMR support
  tools/power turbostat: add format "average" for external attributes
  tools/power turbostat: delete GET_PKG()
  tools/power turbostat: probe and display L3 cache topology
  tools/power turbostat: Support more than 64 built-in-counters
  tools/power turbostat.8: Document Totl%C0, Any%C0, GFX%C0, CPUGFX% columns
  tools/power turbostat: Fix bogus SysWatt for forked program
  tools/power turbostat: Handle cap_get_proc() ENOSYS
  tools/power turbostat: Fix build with musl
  tools/power turbostat: verify arguments to params --show and --hide
  tools/power turbostat: regression fix: --show C1E%
2025-08-10 09:02:36 +03:00
Linus Torvalds
b96ddbc5c8 - Remove an obsolete comment and fix spelling
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Merge tag 'smp_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull smp fixes from Borislav Petkov:

 - Remove an obsolete comment and fix spelling

* tag 'smp_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu: Remove obsolete comment from takedown_cpu()
  smp: Fix spelling in on_each_cpu_cond_mask()'s doc-comment
2025-08-10 08:51:37 +03:00
Linus Torvalds
7d2fed1f3c - Fix a wrong ioremap size in mvebu-gicp
- Remove yet another compile-test case for a driver which needs an
   additional dependency
 
 - Fix a lock inversion scenario in the IRQ unit test suite
 
 - Remove an impossible flag situation in gic-v5
 
 - Do not iounmap resources in gic-v5 which are managed by devm
 
 - Make sure stale, left-over interrupts in mvebu-gicp are cleared on
   driver init
 
 - Fix a reference counting mishap in msi-lib
 
 - Fix a dereference-before-null-ptr-check case in the riscv-imsic
   irqchip driver
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Merge tag 'irq_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Borislav Petkov:

 - Fix a wrong ioremap size in mvebu-gicp

 - Remove yet another compile-test case for a driver which needs an
   additional dependency

 - Fix a lock inversion scenario in the IRQ unit test suite

 - Remove an impossible flag situation in gic-v5

 - Do not iounmap resources in gic-v5 which are managed by devm

 - Make sure stale, left-over interrupts in mvebu-gicp are cleared on
   driver init

 - Fix a reference counting mishap in msi-lib

 - Fix a dereference-before-null-ptr-check case in the riscv-imsic
   irqchip driver

* tag 'irq_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/mvebu-gicp: Use resource_size() for ioremap()
  irqchip: Build IMX_MU_MSI only on ARM
  genirq/test: Resolve irq lock inversion warnings
  irqchip/gic-v5: Remove IRQD_RESEND_WHEN_IN_PROGRESS for ITS IRQs
  irqchip/gic-v5: iwb: Fix iounmap probe failure path
  irqchip/mvebu-gicp: Clear pending interrupts on init
  irqchip/msi-lib: Fix fwnode refcount in msi_lib_irq_domain_select()
  irqchip/riscv-imsic: Don't dereference before NULL pointer check
2025-08-10 08:46:47 +03:00
Linus Torvalds
acaa21a26f - Fix an interrupt vector setup race which leads to a non-functioning device
- Add new Intel CPU models *and* a family: 0x12. Finally. Yippie! :-)
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Merge tag 'x86_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Fix an interrupt vector setup race which leads to a non-functioning
   device

 - Add new Intel CPU models *and* a family: 0x12. Finally. Yippie! :-)

* tag 'x86_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/irq: Plug vector setup race
  x86/cpu: Add new Intel CPU model numbers for Wildcatlake and Novalake
2025-08-10 08:15:32 +03:00
Linus Torvalds
8e8f6b635f - Prevent a futex hash leak due to different mm lifetimes
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Merge tag 'locking_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fix from Borislav Petkov:

 - Prevent a futex hash leak due to different mm lifetimes

* tag 'locking_urgent_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Move futex cleanup to __mmdrop()
2025-08-10 08:11:39 +03:00
Len Brown
5e98a5e73e tools/power turbostat: version 2025.09.09
Probe and display L3 Cache topology
Add ability to average an added counter
	(useful for pre-integrated "counters", such as Watts)
Break the limit of 64 built-in counters.
Assorted bug fixes and minor feature tweaks

Signed-off-by: Len Brown <len.brown@intel.com>
2025-08-09 21:24:46 -04:00
Len Brown
e60a13bcef tools/power turbostat: Handle non-root legacy-uncore sysfs permissions
/sys/devices/system/cpu/intel_uncore_frequency/package_X_die_Y/
may be readable by all, but
/sys/devices/system/cpu/intel_uncore_frequency/package_X_die_Y/current_freq_khz
may be readable only by root.

Non-root turbostat users see complaints in this scenario.

Fail probe of the interface if we can't read current_freq_khz.

Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Original-patch-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2025-08-09 21:24:46 -04:00
Len Brown
378e901160 tools/power turbostat: standardize PER_THREAD_PARAMS
use a macro for PER_THREAD_PARAMS to make adding one later more clear.

no functional change

Signed-off-by: Len Brown <len.brown@intel.com>
2025-08-09 21:24:46 -04:00