Commit graph

1,121,523 commits

Author SHA1 Message Date
Daniel Lezcano
a930da9bf5 thermal/core: Move the mutex inside the thermal_zone_device_update() function
All the different calls inside the thermal_zone_device_update()
function take the mutex.

The previous changes move the mutex out of the different functions,
like the throttling ops. Now that the mutexes are all at the same
level in the call stack for the thermal_zone_device_update() function,
they can be moved inside this one.

That has the benefit of:

1. Simplify the code by not having a plethora of places where the lock is taken

2. Probably closes more race windows because releasing the lock from
one line to another can give the opportunity to the thermal zone to change
its state in the meantime. For example, the thermal zone can be
enabled right after checking it is disabled.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20220805153834.2510142-5-daniel.lezcano@linaro.org
2022-08-17 14:09:39 +02:00
Daniel Lezcano
670a5e356c thermal/core: Move the thermal zone lock out of the governors
All the governors throttling ops are taking/releasing the lock at the
beginning and the end of the function.

We can move the mutex to the throttling call site instead.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20220805153834.2510142-4-daniel.lezcano@linaro.org
2022-08-17 14:09:39 +02:00
Daniel Lezcano
63561fe36b thermal/governors: Group the thermal zone lock inside the throttle function
The thermal zone lock is taken in the different places in the
throttling path.

At the first glance it does not hurt to move them at the beginning and
the end of the 'throttle' function. That will allow a consolidation of
the lock in the next following changes.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20220805153834.2510142-3-daniel.lezcano@linaro.org
2022-08-17 14:09:39 +02:00
Daniel Lezcano
15a73839e3 thermal/core: Rework the monitoring a bit
The should_stop_polling() function wraps the function
thermal_zone_device_is_enabled().

The monitor_thermal_zone() function checks if the thermal zone is
enabled via the should_stop_polling() function.

However, the instant after checking the thermal zone is enabled, this
one can be disabled, so even if that reduces the race window, it does
not prevent that and the monitoring can be set again with the thermal
zone disabled.

For this reason, the function should_stop_polling() is replaced by a
direct check of the thermal zone mode with the mutex locks held, that
prevents the situation described above.

As the semantic is clear with the thermal_zone_is_enabled() function,
we can remove the should_stop_polling() function and replace the check
with the former function.

While at it, reorder the checks to improve the readability of the
monitor_thermal_zone() function.

In the future, the thermal_zone_device_disable() and the
thermal_zone_device_enable() functions should unset / set the polling
timer directly instead of relying on the next
thermal_zone_device_update() call to do that. That will make a
synchronous thermal zone mode change but the locking scheme should be
double checked for that which out of the scope of this change.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20220805153834.2510142-2-daniel.lezcano@linaro.org
2022-08-17 14:09:39 +02:00
Daniel Lezcano
9662756a9a thermal/core: Rearm the monitoring only one time
The current code calls monitor_thermal_zone() inside the
handle_thermal_trip() function. But this one is called in a loop for
each trip point which means the monitoring is rearmed several times
for nothing (assuming there could be several passive and active trip
points).

Move the monitor_thermal_zone() function out of the
handle_thermal_trip() function and after the thermal trip loop, so the
timer will be disabled or rearmed one time.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20220805153834.2510142-1-daniel.lezcano@linaro.org
2022-08-17 14:09:39 +02:00
Jiapeng Chong
e920209847 thermal/drivers/qcom/spmi-adc-tm5: Remove unnecessary print function dev_err()
The print function dev_err() is redundant because platform_get_irq()
already prints an error.

./drivers/thermal/qcom/qcom-spmi-adc-tm5.c:1029:2-9: line 1029 is redundant because platform_get_irq() already prints an error.

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=1846
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220809034346.128607-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:39 +02:00
Daniel Lezcano
f59ac19b7f thermal/of: Remove old OF code
All the drivers are converted to the new OF API, remove the old OF code.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-34-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:39 +02:00
Daniel Lezcano
9326167058 thermal/core: Move set_trip_temp ops to the sysfs code
Given the trip points can be set in the thermal zone structure, there
is no need of a specific OF function to do that. Move the code in the
place where it is generic, in the sysfs set_trip_temp storing
function.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-33-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:39 +02:00
Daniel Lezcano
7ea98f70c7 thermal/drivers/samsung: Switch to new of thermal API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-32-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:39 +02:00
Daniel Lezcano
826855ff57 regulator/drivers/max8976: Switch to new of thermal API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-31-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:39 +02:00
Daniel Lezcano
ad662b1d60 Input: sun4i-ts - switch to new of thermal API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220804224349.1926752-30-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:39 +02:00
Daniel Lezcano
de15b8403f iio/drivers/sun4i_gpadc: Switch to new of thermal API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220804224349.1926752-29-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:39 +02:00
Daniel Lezcano
e518133135 hwmon/drivers/core: Switch to new of thermal API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220804224349.1926752-28-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:39 +02:00
Daniel Lezcano
613ed3f676 hwmon: pm_bus: core: Switch to new of thermal API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-27-daniel.lezcano@linexp.org
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
f1d8b5042e ata/drivers/ahci_imx: Switch to new of thermal API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

sata_ahci_read_temperature() is used by sata_ahci_show_temp() also.

So in order to change the function prototype for the get_temp ops which
does not take a void* but a thermal_zone_device* structure, this
function wraps the call.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Link: https://lore.kernel.org/r/20220804224349.1926752-26-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
2cf3c72a3f thermal/drivers/ti-soc: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-25-daniel.lezcano@linexp.org
Acked-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
5ee7811e9a thermal/drivers/hisilicon: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-24-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
ae11d6a87c thermal/drivers/maxim: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-23-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
b86105ed9f thermal/drivers/banggap: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-22-daniel.lezcano@linexp.org
Reviewed-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
ab7e865db9 thermal/drivers/mtk: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220804224349.1926752-21-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
3e7494b41c thermal/drivers/qoriq: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-20-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
396cbbc6b7 thermal/drivers/rzg2l: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-19-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
2ebd4f2f2e thermal/drivers/rcar: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20220804224349.1926752-18-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
32fb9a8a9d thermal/drivers/imx: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-17-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
2320be6032 thermal/drivers/db8500: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-16-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
e4a1150e3e thermal/drivers/armada: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-15-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
1240fd6512 thermal/drivers/amlogic: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-14-daniel.lezcano@linexp.org
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
7e96f35408 thermal/drivers/st: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-13-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
ca1b9a9eb3 thermal/drivers/qcom: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-12-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
944441d878 thermal/drivers/broadcom: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220804224349.1926752-11-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
7f689a2ef4 thermal/drivers/sprd: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-10-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
2e2150c794 thermal/drivers/sun8i: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-9-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
6fc2e1a5f9 thermal/drivers/tegra: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-8-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:38 +02:00
Daniel Lezcano
44b5554d98 thermal/drivers/mmio: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Reviewed-by: Talel Shenhar <talel@amazon.com>
Link: https://lore.kernel.org/r/20220804224349.1926752-7-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:37 +02:00
Daniel Lezcano
2ff66cba5b thermal/drivers/generic-adc: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-6-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:37 +02:00
Daniel Lezcano
c5f12023ff thermal/drivers/uniphier: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-5-daniel.lezcano@linexp.org
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:37 +02:00
Daniel Lezcano
90b2ca02a9 thermal/drivers/rockchip: Switch to new of API
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-4-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:37 +02:00
Daniel Lezcano
48ad3b104b thermal/of: Make new code and old code co-exist
This transient change allows to use old and new OF together until all
the drivers are converted to use the new OF API.

This will go away when the old OF code will be removed.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-3-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:37 +02:00
Daniel Lezcano
8fb5b71ed3 thermal/of: Fix free after use in thermal_of_unregister()
The thermal zone is freed after being unregistered. The release method
devm_thermal_zone_device_register() calls
  -> thermal_of_zone_device_unregister()

This one calls thermal_zone_device_unregister() which frees the
thermal zone. However, thermal_of_zone_device_unregister() does access
this freed pointer to free different resources allocated by the
thermal_of framework which is invalid.

It results in a kernel panic:

[    1.915140] thermal_sys: Failed to find thermal zone for tmu id=2
[    1.921279] qoriq_thermal 1f80000.tmu: Failed to register sensors
[    1.927395] qoriq_thermal: probe of 1f80000.tmu failed with error -22
[    1.934189] Unable to handle kernel paging request at virtual address 01adadadadadad88
[    1.942146] Mem abort info:
[    1.944948]   ESR = 0x0000000096000004
[    1.948708]   EC = 0x25: DABT (current EL), IL = 32 bits
[    1.954042]   SET = 0, FnV = 0
[    1.957107]   EA = 0, S1PTW = 0
[    1.960253]   FSC = 0x04: level 0 translation fault
[    1.965147] Data abort info:
[    1.968030]   ISV = 0, ISS = 0x00000004
[    1.971878]   CM = 0, WnR = 0
[    1.974852] [01adadadadadad88] address between user and kernel address ranges
[    1.982016] Internal error: Oops: 96000004 [#1] SMP
[    1.986907] Modules linked in:
[    1.989969] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.19.0-next-20220808-00080-g1c46f44502e0 #1697
[    1.999135] Hardware name: Kontron KBox A-230-LS (DT)
[    2.004199] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    2.011185] pc : kfree+0x5c/0x3c0
[    2.014516] lr : devm_thermal_of_zone_release+0x38/0x60
[    2.019761] sp : ffff80000a22bad0
[    2.023081] x29: ffff80000a22bad0 x28: 0000000000000000 x27: ffff800009960464
[    2.030245] x26: ffff800009a16960 x25: 0000000000000006 x24: ffff800009f09a40
[    2.037407] x23: ffff800009ab9008 x22: ffff800008d0eea8 x21: 01adadadadadad80
[    2.044569] x20: 6b6b6b6b6b6b6b6b x19: ffff00200232b800 x18: 00000000fffffffb
[    2.051731] x17: ffff800008d0eea0 x16: ffff800008d07d44 x15: ffff800008d0d154
[    2.056647] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[    2.058893] x14: ffff800008d0cddc x13: ffff8000088d1c2c x12: ffff8000088d5034
[    2.072597] x11: ffff8000088d46d4 x10: 0000000000000000 x9 : ffff800008d0eea8
[    2.079759] x8 : ffff002000b1a158 x7 : bbbbbbbbbbbbbbbb x6 : ffff80000a0f53b8
[    2.086921] x5 : ffff80000a22b960 x4 : 0000000000000000 x3 : 0000000000000000
[    2.094082] x2 : fffffc0000000000 x1 : ffff002000838040 x0 : 01adb1adadadad80
[    2.101244] Call trace:
[    2.103692]  kfree+0x5c/0x3c0
[    2.106666]  devm_thermal_of_zone_release+0x38/0x60
[    2.111561]  release_nodes+0x64/0xd0
[    2.115146]  devres_release_all+0xbc/0x350
[    2.119253]  device_unbind_cleanup+0x20/0x70
[    2.123536]  really_probe+0x1a0/0x2e4
[    2.127208]  __driver_probe_device+0x80/0xec
[    2.131490]  driver_probe_device+0x44/0x130
[    2.135685]  __driver_attach+0x104/0x1b4
[    2.139619]  bus_for_each_dev+0x7c/0xe0
[    2.143465]  driver_attach+0x30/0x40
[    2.147048]  bus_add_driver+0x160/0x210
[    2.150894]  driver_register+0x84/0x140
[    2.154741]  __platform_driver_register+0x34/0x40
[    2.159461]  qoriq_tmu_init+0x28/0x34
[    2.163133]  do_one_initcall+0x50/0x250
[    2.166979]  kernel_init_freeable+0x278/0x31c
[    2.171349]  kernel_init+0x30/0x140
[    2.174847]  ret_from_fork+0x10/0x20
[    2.178433] Code: b25657e2 d34cfc00 d37ae400 8b020015 (f94006a1)
[    2.184546] ---[ end trace 0000000000000000 ]---

Store the allocated resource pointers before the thermal zone is free
and use them to release the resource after unregistering the thermal
zone.

Fixes: 3bd52ac87347 ("thermal/of: Rework the thermal device tree initialization")
Reported-by: Michael Walle <michael@walle.cc>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Michael Walle <michael@walle.cc>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220809085629.509116-4-daniel.lezcano@linaro.org
2022-08-17 14:09:37 +02:00
Daniel Lezcano
9d6792df07 thermal/of: Return -ENODEV instead of -EINVAL if registration fails
The previous version of the OF code was returning -ENODEV if no
thermal zones description was found or if the lookup of the sensor in
the thermal zones was not found.

The backend drivers are expecting this return value as an information
about skipping the sensor initialization and considered as normal.

Fix the return value by replacing -EINVAL by -ENODEV and remove the
error message as this missing is not considered as an error.

Fixes: 3bd52ac87347 ("thermal/of: Rework the thermal device tree initialization")
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Michael Walle <michael@walle.cc>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220809085629.509116-2-daniel.lezcano@linaro.org
2022-08-17 14:09:37 +02:00
Dan Carpenter
45b8850b3d thermal/of: Fix error code in of_thermal_zone_find()
Currently, if we cannot find the correct thermal zone then this error
path returns NULL and it would lead to an Oops in the caller.  Return
ERR_PTR(-EINVAL) instead.

Fixes: 3bd52ac87347 ("thermal/of: Rework the thermal device tree initialization")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YvDzovkMCQecPDjz@kili
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:37 +02:00
Daniel Lezcano
3fd6d6e2b4 thermal/of: Rework the thermal device tree initialization
The following changes are reworking entirely the thermal device tree
initialization. The old version is kept until the different drivers
using it are converted to the new API.

The old approach creates the different actors independently. This
approach is the source of the code duplication in the thermal OF
because a thermal zone is created but a sensor is registered
after. The thermal zones are created unconditionnaly with a fake
sensor at init time, thus forcing to provide fake ops and store all
the thermal zone related information in duplicated structures. Then
the sensor is initialized and the code looks up the thermal zone name
using the device tree. Then the sensor is associated to the thermal
zone, and the sensor specific ops are called with a second level of
indirection from the thermal zone ops.

When a sensor is removed (with a module unload), the thermal zone
stays there with the fake sensor.

The cooling device associated with a thermal zone and a trip point is
stored in a list, again duplicating information, using the node name
of the device tree to match afterwards the cooling devices.

The new approach is simpler, it creates a thermal zone when the sensor
is registered and destroys it when the sensor is removed. All the
matching between the cooling device, trip points and thermal zones are
done using the device tree, as well as bindings. The ops are no longer
specific but uses the generic ones provided by the thermal framework.

When the old code won't have any users, it can be removed and the
remaining thermal OF code will be much simpler.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-2-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-08-17 14:09:37 +02:00
Daniel Lezcano
8c59632423 dt-bindings: thermal: Fix missing required property
When the thermal zone description was converted to yaml schema, the
required 'trips' property was forgotten.

The initial text bindings was describing:

"
[ ... ]

* Thermal zone nodes

The thermal zone node is the node containing all the required info
for describing a thermal zone, including its cooling device bindings. The
thermal zone node must contain, apart from its own properties, one sub-node
containing trip nodes and one sub-node containing all the zone cooling maps.

Required properties:
- polling-delay:        The maximum number of milliseconds to wait between polls
  Type: unsigned        when checking this thermal zone.
  Size: one cell

- polling-delay-passive: The maximum number of milliseconds to wait
  Type: unsigned        between polls when performing passive cooling.
  Size: one cell

- thermal-sensors:      A list of thermal sensor phandles and sensor specifier
  Type: list of         used while monitoring the thermal zone.
  phandles + sensor
  specifier

- trips:                A sub-node which is a container of only trip point nodes
  Type: sub-node        required to describe the thermal zone.

Optional property:
- cooling-maps:         A sub-node which is a container of only cooling device
  Type: sub-node        map nodes, used to describe the relation between trips
                        and cooling devices.
  [ ... ]

"

Now the schema describes:

"
    [ ... ]

    required:
      - polling-delay
      - polling-delay-passive
      - thermal-sensors

    [ ... ]
"

Add the missing 'trips' property in the required properties.

Fixed: 1202a442a3 ("dt-bindings: thermal: Add yaml bindings for thermal zones")
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220809085629.509116-3-daniel.lezcano@linaro.org
2022-08-15 20:38:40 +02:00
Daniel Lezcano
a921be53b4 thermal/core: Add missing EXPORT_SYMBOL_GPL
The function thermal_zone_device_register_with_trips() is not exported
for modules.

Add the missing EXPORT_SYMBOL_GPL().

Fixes: fae11de507 ("thermal/core: Add thermal_trip in thermal_zone")
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20220810100731.749317-1-daniel.lezcano@linaro.org
2022-08-15 20:38:19 +02:00
Linus Torvalds
568035b01c Linux 6.0-rc1 v6.0-rc1 2022-08-14 15:50:18 -07:00
Yury Norov
9f162193d6 radix-tree: replace gfp.h inclusion with gfp_types.h
Radix tree header includes gfp.h for __GFP_BITS_SHIFT only. Now we
have gfp_types.h for this.

Fixes powerpc allmodconfig build:

   In file included from include/linux/nodemask.h:97,
                    from include/linux/mmzone.h:17,
                    from include/linux/gfp.h:7,
                    from include/linux/radix-tree.h:12,
                    from include/linux/idr.h:15,
                    from include/linux/kernfs.h:12,
                    from include/linux/sysfs.h:16,
                    from include/linux/kobject.h:20,
                    from include/linux/pci.h:35,
                    from arch/powerpc/kernel/prom_init.c:24:
   include/linux/random.h: In function 'add_latent_entropy':
>> include/linux/random.h:25:46: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'?
      25 |         add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
         |                                              ^~~~~~~~~~~~~~
         |                                              add_latent_entropy
   include/linux/random.h:25:46: note: each undeclared identifier is reported only once for each function it appears in

Reported-by: kernel test robot <lkp@intel.com>
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-14 13:31:03 -07:00
Linus Torvalds
74cbb480d0 Fix proc_reg_llseek() breakage. Always had been possible if
somebody left NULL ->proc_lseek, became a practical issue now.
 
 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs lseek fix from Al Viro:
 "Fix proc_reg_llseek() breakage. Always had been possible if somebody
  left NULL ->proc_lseek, became a practical issue now"

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  take care to handle NULL ->proc_lseek()
2022-08-14 13:03:53 -07:00
Al Viro
3f61631d47 take care to handle NULL ->proc_lseek()
Easily done now, just by clearing FMODE_LSEEK in ->f_mode
during proc_reg_open() for such entries.

Fixes: 868941b144 "fs: remove no_llseek"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-14 15:16:18 -04:00
Linus Torvalds
5d6a0f4da9 xen: branch for v6.0-rc1b
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Merge tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull more xen updates from Juergen Gross:

 - fix the handling of the "persistent grants" feature negotiation
   between Xen blkfront and Xen blkback drivers

 - a cleanup of xen.config and adding xen.config to Xen section in
   MAINTAINERS

 - support HVMOP_set_evtchn_upcall_vector, which is more compliant to
   "normal" interrupt handling than the global callback used up to now

 - further small cleanups

* tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  MAINTAINERS: add xen config fragments to XEN HYPERVISOR sections
  xen: remove XEN_SCRUB_PAGES in xen.config
  xen/pciback: Fix comment typo
  xen/xenbus: fix return type in xenbus_file_read()
  xen-blkfront: Apply 'feature_persistent' parameter when connect
  xen-blkback: Apply 'feature_persistent' parameter when connect
  xen-blkback: fix persistent grants negotiation
  x86/xen: Add support for HVMOP_set_evtchn_upcall_vector
2022-08-14 09:28:54 -07:00
Linus Torvalds
96f86ff083 perf tools changes for v6.0: 2nd batch
- 'perf c2c' now supports ARM64, adjust its output to cope with differences with
   what is in x86_64. Now go find false sharing on ARM64 (at least Neoverse) as well!
 
 - Refactor the JSON processing, making the output more compact and thus reducing the
   size of the resulting perf binary.
 
 - Improvements for 'perf offcpu' profiling, including tracking child processes.
 
 - Update Intel JSON metrics and events files for broadwellde, broadwellx,
   cascadelakex, haswellx, icelakex, ivytown, jaketown, knightslanding,
   sapphirerapids, skylakex and snowridgex.
 
 - Add 'perf stat' JSON output and a 'perf test' entry for it.
 
 - Ignore memfd and anonymous mmap events if jitdump present.
 
 - Refactor 'perf test' shell tests allowing subdirs.
 
 - Fix an error handling path in 'parse_perf_probe_command()'
 
 - Fixes for the guest Intel PT tracing patchkit in the 1st batch of this merge window.
 
 - Print debuginfod queries if -v option is used, to explain delays in processing when
   debuginfo servers are enabled to fetch DSOs with richer symbol tables.
 
 - Improve error message for 'perf record -p not_existing_pid'
 
 - Fix openssl and libbpf feature detection.
 
 - Add PMU pai_crypto event description for IBM z16 on 'perf list'.
 
 - Fix typos and duplicated words on comments in various places.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull more perf tool updates from Arnaldo Carvalho de Melo:

 - 'perf c2c' now supports ARM64, adjust its output to cope with
   differences with what is in x86_64. Now go find false sharing on
   ARM64 (at least Neoverse) as well!

 - Refactor the JSON processing, making the output more compact and thus
   reducing the size of the resulting perf binary

 - Improvements for 'perf offcpu' profiling, including tracking child
   processes

 - Update Intel JSON metrics and events files for broadwellde,
   broadwellx, cascadelakex, haswellx, icelakex, ivytown, jaketown,
   knightslanding, sapphirerapids, skylakex and snowridgex

 - Add 'perf stat' JSON output and a 'perf test' entry for it

 - Ignore memfd and anonymous mmap events if jitdump present

 - Refactor 'perf test' shell tests allowing subdirs

 - Fix an error handling path in 'parse_perf_probe_command()'

 - Fixes for the guest Intel PT tracing patchkit in the 1st batch of
   this merge window

 - Print debuginfod queries if -v option is used, to explain delays in
   processing when debuginfo servers are enabled to fetch DSOs with
   richer symbol tables

 - Improve error message for 'perf record -p not_existing_pid'

 - Fix openssl and libbpf feature detection

 - Add PMU pai_crypto event description for IBM z16 on 'perf list'

 - Fix typos and duplicated words on comments in various places

* tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (81 commits)
  perf test: Refactor shell tests allowing subdirs
  perf vendor events: Update events for snowridgex
  perf vendor events: Update events and metrics for skylakex
  perf vendor events: Update metrics for sapphirerapids
  perf vendor events: Update events for knightslanding
  perf vendor events: Update metrics for jaketown
  perf vendor events: Update metrics for ivytown
  perf vendor events: Update events and metrics for icelakex
  perf vendor events: Update events and metrics for haswellx
  perf vendor events: Update events and metrics for cascadelakex
  perf vendor events: Update events and metrics for broadwellx
  perf vendor events: Update metrics for broadwellde
  perf jevents: Fold strings optimization
  perf jevents: Compress the pmu_events_table
  perf metrics: Copy entire pmu_event in find metric
  perf pmu-events: Hide the pmu_events
  perf pmu-events: Don't assume pmu_event is an array
  perf pmu-events: Move test events/metrics to JSON
  perf test: Use full metric resolution
  perf pmu-events: Hide pmu_events_map
  ...
2022-08-14 09:22:11 -07:00