platform/kernel/linux-rpi.git
2 years agohwmon: (vt8231) Reorder symbols to get rid of a few forward declarations
Uwe Kleine-König [Tue, 20 Sep 2022 13:56:17 +0000 (15:56 +0200)]
hwmon: (vt8231) Reorder symbols to get rid of a few forward declarations

Declarations for static symbols are useless repetition unless there are
cyclic dependencies.

Reorder the functions and variables to get rid of 5 forward declarations.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220920135617.1046361-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (vt8231) Introduce a #define for the driver name and use it
Uwe Kleine-König [Tue, 20 Sep 2022 13:56:16 +0000 (15:56 +0200)]
hwmon: (vt8231) Introduce a #define for the driver name and use it

Make use of the cpp symbol DRIVER_NAME to set the driver's name and use
it instead of all explicit usages of the same string. Also make use of
it instead of vt8231_driver.driver.name which breaks a cyclic dependency
between vt8231_probe() and vt8231_driver that in the next commit allows
to drop some forward declarations.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220920135617.1046361-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pc87360) Reorder symbols to get rid of a few forward declarations
Uwe Kleine-König [Mon, 19 Sep 2022 10:31:55 +0000 (12:31 +0200)]
hwmon: (pc87360) Reorder symbols to get rid of a few forward declarations

Declarations for static symbols are useless repetition unless there are
cyclic dependencies.

Reorder the functions and variables to get rid of 6 forward declarations.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220919103155.795151-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pc87360) Introduce a #define for the driver name and use it
Uwe Kleine-König [Mon, 19 Sep 2022 10:31:54 +0000 (12:31 +0200)]
hwmon: (pc87360) Introduce a #define for the driver name and use it

Make use of the cpp symbol DRIVER_NAME to set the driver's name and also
as name for devm_request_region(). While at it add a module alias using
the new define.

This is a preparation for the next cleanup commit that removes a cyclic
dependency between pc87360_driver (which references pc87360_probe in
.probe) and pc87360_probe() (which used pc87360_driver.driver.name).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220919103155.795151-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pwm-fan) Switch regulator dynamically
Alexander Stein [Wed, 14 Sep 2022 15:31:37 +0000 (17:31 +0200)]
hwmon: (pwm-fan) Switch regulator dynamically

This adds the enable attribute which is used to select if zero PWM duty
means to switch off regulator and PWM or to keep them enabled but
at inactive PWM output level.
Depending on the select enable mode, turn off the regulator and PWM if
the PWM duty is zero, or keep them enabled.
This is especially important for fan using inverted PWM signal polarity.
Having regulator supplied and PWM disabled, some PWM controllers provide
the active, rather than inactive signal.

With this change the shutdown as well as suspend/resume paths require
modifcations as well.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220914153137.613982-6-alexander.stein@ew.tq-group.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pwm-fan) split __set_pwm into locked/unlocked functions
Alexander Stein [Wed, 14 Sep 2022 15:31:36 +0000 (17:31 +0200)]
hwmon: (pwm-fan) split __set_pwm into locked/unlocked functions

Regular calls to set_pwm don't hold the mutex, but the upcoming
update_enable support needs to call set_pwm with the mutex being held.
So provide the previous behavior in set_pwm (handling the lock), while
adding __set_pwm which assumes the lock being held.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220914153137.613982-5-alexander.stein@ew.tq-group.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pwm-fan) Add dedicated power switch function
Alexander Stein [Wed, 14 Sep 2022 15:31:35 +0000 (17:31 +0200)]
hwmon: (pwm-fan) Add dedicated power switch function

This handles enabling/disabling the regulator in a single function, while
keeping the enables/disabled balanced. This is a preparation when
regulator is switched from different code paths.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220914153137.613982-4-alexander.stein@ew.tq-group.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pwm-fan) Simplify enable/disable check
Alexander Stein [Wed, 14 Sep 2022 15:31:34 +0000 (17:31 +0200)]
hwmon: (pwm-fan) Simplify enable/disable check

Instead of comparing the current to the new pwm duty to decide whether to
enable the PWM, use a dedicated flag. Also apply the new PWM duty in any
case. This is a preparation to enable/disable the regulator dynamically.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220914153137.613982-3-alexander.stein@ew.tq-group.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pwm-fan) Refactor fan power on/off
Alexander Stein [Wed, 14 Sep 2022 15:31:33 +0000 (17:31 +0200)]
hwmon: (pwm-fan) Refactor fan power on/off

In preparation for dynamically switching regulator, split the power on
and power off sequence into separate functions.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220914153137.613982-2-alexander.stein@ew.tq-group.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pmbus) Add driver for the TEXAS TPS546D24 Buck Converter.
Duke Du [Mon, 12 Sep 2022 03:01:08 +0000 (11:01 +0800)]
hwmon: (pmbus) Add driver for the TEXAS TPS546D24 Buck Converter.

Add the pmbus driver for TEXAS tps546d24 Buck Converter.
The vout mode of tps546d24 supported relative data format,
which is not supported by the PMBus core.

Signed-off-by: Duke Du <dukedu83@gmail.com>
Link: https://lore.kernel.org/r/1662951668-9849-1-git-send-email-Duke.Du@quantatw.com
[groeck: Add __maybe_unused to tps546d24_of_match declaration]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agoMAINTAINERS: Add maintainer for hwmon/max31760
Ibrahim Tilki [Sat, 10 Sep 2022 17:19:45 +0000 (20:19 +0300)]
MAINTAINERS: Add maintainer for hwmon/max31760

Add maintainer for hwmon/max31760 driver

Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
Link: https://lore.kernel.org/r/20220910171945.48088-5-Ibrahim.Tilki@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: Add bindings for max31760
Ibrahim Tilki [Sat, 10 Sep 2022 17:19:44 +0000 (20:19 +0300)]
dt-bindings: hwmon: Add bindings for max31760

Adding bindings for Analog Devices MAX31760 Fan-Speed Controller

Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220910171945.48088-4-Ibrahim.Tilki@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodocs: hwmon: add max31760 documentation
Ibrahim Tilki [Sat, 10 Sep 2022 17:19:43 +0000 (20:19 +0300)]
docs: hwmon: add max31760 documentation

Adding documentation for max31760 fan speed controller

Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
Link: https://lore.kernel.org/r/20220910171945.48088-3-Ibrahim.Tilki@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodrivers: hwmon: Add max31760 fan speed controller driver
Ibrahim Tilki [Sat, 10 Sep 2022 17:19:42 +0000 (20:19 +0300)]
drivers: hwmon: Add max31760 fan speed controller driver

MAX31760 is a precision fan speed controller with nonvolatile lookup table.
Device has one internal and one external temperature sensor support.
Controls two fans and measures their speeds. Generates hardware alerts when
programmable max and critical temperatures are exceeded.

Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
Reviewed-by: Nurettin Bolucu <Nurettin.Bolucu@analog.com>
Link: https://lore.kernel.org/r/20220910171945.48088-2-Ibrahim.Tilki@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) fix coding style space errors
Eliav Farber [Thu, 8 Sep 2022 15:24:49 +0000 (15:24 +0000)]
hwmon: (mr75203) fix coding style space errors

Fix: "ERROR: space required before the open parenthesis '('"

All of the errors were introduced before this series of patches.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-22-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) add debugfs to read and write temperature coefficients
Eliav Farber [Thu, 8 Sep 2022 15:24:48 +0000 (15:24 +0000)]
hwmon: (mr75203) add debugfs to read and write temperature coefficients

This change adds debugfs to read and write temperature sensor coefficients
- g, h, j and cal5.

The coefficients can vary between product and product, so it can be very
useful to be able to modify them on the fly during the calibration
process.

e.g.:

cat /sys/kernel/debug/940f23d0000.pvt/ts_coeff_cal5
4096

echo 83000 > sys/kernel/debug/940f23d0000.pvt/ts_coeff_g

Signed-off-by: Eliav Farber <farbere@amazon.com>
Link: https://lore.kernel.org/r/20220908152449.35457-21-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) parse temperature coefficients from device-tree
Eliav Farber [Thu, 8 Sep 2022 15:24:47 +0000 (15:24 +0000)]
hwmon: (mr75203) parse temperature coefficients from device-tree

Use thermal coefficients from the device tree if they exist.
Otherwise, use default values according to the series (5 or 6).
All coefficients can be used or only part of them.

The coefficients shall be used for fine tuning the default values since
coefficients can vary between product and product.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-20-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: (mr75203) add coefficient properties for the thermal equation
Eliav Farber [Thu, 8 Sep 2022 15:24:46 +0000 (15:24 +0000)]
dt-bindings: hwmon: (mr75203) add coefficient properties for the thermal equation

Add optional temperature coefficient properties:
 *) moortec,ts-coeff-g
 *) moortec,ts-coeff-h
 *) moortec,ts-coeff-cal5
 *) moortec,ts-coeff-j
If defined they shall be used instead of defaults.

The coefficients were added to device tree on top of the series property
(which can be used to select between series 5 and series 6), because
coefficients can vary between product and product, and code defaults might
not be accurate enough.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-19-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) add support for series 6 temperature equation
Eliav Farber [Thu, 8 Sep 2022 15:24:45 +0000 (15:24 +0000)]
hwmon: (mr75203) add support for series 6 temperature equation

The current equation used in code is aligned to series 5:
T = G + H * (n / cal5 - 0.5) + J * F
Where:
G = 60, H = 200, cal5 = 4094, J = -0.1, F = frequency clock in MHz

Series 6 has a slightly different equation:
T = G + H * (n / cal5 - 0.5)
and a different set of coefficients:
G = 57.4, H = 249.4, cal5 = 4096

This change supports equation and coefficients for both series.
(for series 6, J is set to 0).

The series is determined according to “moortec,ts-series” property in
the device tree.
If absent, series 5 is assumed to be the default.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-18-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: (mr75203) add "moortec,ts-series" property
Eliav Farber [Thu, 8 Sep 2022 15:24:44 +0000 (15:24 +0000)]
dt-bindings: hwmon: (mr75203) add "moortec,ts-series" property

Add optional "moortec,ts-series" property to define the temperature
equation and coefficients that shall be used to convert the digital
output to value in milli-Celsius.
Supported series: 5 (default) and 6.

Series 5:
  T = G + H * (n / cal5 - 0.5) + J * F
Where: G = 60, H = 200, cal5 = 4094, J = -0.1, F = frequency clock in MHz

Series 6:
   T = G + H * (n / cal5 - 0.5)
Where: G = 57.4, H = 249.4, cal5 = 4096

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-17-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (aspeed-pwm-tacho) Add dependency on ARCH_ASPEED
Peter Robinson [Fri, 16 Sep 2022 12:09:36 +0000 (13:09 +0100)]
hwmon: (aspeed-pwm-tacho) Add dependency on ARCH_ASPEED

The SENSORS_ASPEED is part of the Aspeed silicon so it makes
sense to depend on ARCH_ASPEED and for compile testing.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Link: https://lore.kernel.org/r/20220916120936.372591-1-pbrobinson@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) modify the temperature equation according to series 5 datasheet
Eliav Farber [Thu, 8 Sep 2022 15:24:43 +0000 (15:24 +0000)]
hwmon: (mr75203) modify the temperature equation according to series 5 datasheet

Modify the equation and coefficients used to convert the digital output
to temperature according to series 5 of the Moortec Embedded Temperature
Sensor (METS) datasheet:
T = G + H * (n / cal5 - 0.5) + J * F

Where:
*) G = 60, H = 200, cal5 = 4094, J = -0.1.
*) F = frequency clock in MHz.
*) n is the digital output.

In code, the G, H and J coefficients are multiplied by a factor of 1000
to get the temperature in milli-Celsius.
Final result is clamped in case it exceeds min/max thresholds.

Change is done since it is unclear where the current equation and
coefficients came from.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-16-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) add VM pre-scaler x2 support
Eliav Farber [Thu, 8 Sep 2022 15:24:42 +0000 (15:24 +0000)]
hwmon: (mr75203) add VM pre-scaler x2 support

Add support for mr76006 pre-scaler which provides divide-by-2 scaling
of the input voltage, so that it can be  presented to the VM for
measurement within its range (the VM input range is limited from -0.1V
to 1V).

The driver reads from the device-tree all the channels that use the
mr76006 pre-scaler and multiplies the voltage result by a factor of 2,
to represent to the user with the actual voltage input source.

Channels that are not in the device-tree are multiplied by a factor
of 1.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-15-farbere@amazon.com
[groeck: Addressed conflicts against commit d59eacaac953]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: (mr75203) add "moortec,vm-pre-scaler-x2" property
Eliav Farber [Thu, 8 Sep 2022 15:24:41 +0000 (15:24 +0000)]
dt-bindings: hwmon: (mr75203) add "moortec,vm-pre-scaler-x2" property

Add support for mr76006 pre-scaler which provides divide-by-2 scaling of
the input voltage, so that it can be  presented to the VM for measurement
within its range (the VM input range is limited to -0.1V to 1V).

The new "moortec,vm-pre-scaler-x2" property lists the channels that use
the mr76006 pre-scaler.

The driver will use this list to multiply the voltage result by 2, to
present to the user with the actual voltage input source.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-14-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) add VM active channel support
Eliav Farber [Thu, 8 Sep 2022 15:24:40 +0000 (15:24 +0000)]
hwmon: (mr75203) add VM active channel support

Add active channel support per voltage monitor.
The number of active channels is read from the device-tree.
When absent in device-tree, all channels are assumed to be used.

This shall be useful to expose sysfs only for inputs that are connected
to a voltage source.

Setting number of active channels to 0, means that entire VM sensor is
not used.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-13-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: (mr75203) add "moortec,vm-active-channels" property
Eliav Farber [Thu, 8 Sep 2022 15:24:39 +0000 (15:24 +0000)]
dt-bindings: hwmon: (mr75203) add "moortec,vm-active-channels" property

Add optional "moortec,vm-active-channels" property to define the number
of active channels per VM.

This shall be useful to avoid exposing sysfs for reading inputs that are
not connected to any voltage source.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-12-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: vendor-prefixes: add vendor prefix for Moortec
Eliav Farber [Thu, 8 Sep 2022 15:24:38 +0000 (15:24 +0000)]
dt-bindings: vendor-prefixes: add vendor prefix for Moortec

Add device-tree vendor prefix for Moortec Semiconductor Ltd.
Website: https://moortec.com/

Moortec were acquired by Synopsys so link above leads to:
https://www.synopsys.com/solutions/silicon-lifecycle-management.html

Signed-off-by: Eliav Farber <farbere@amazon.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-11-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (nzxt-smart2) add another USB ID
Aleksandr Mezin [Sun, 18 Sep 2022 11:55:06 +0000 (17:55 +0600)]
hwmon: (nzxt-smart2) add another USB ID

No known differences from already supported devices.

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>
Link: https://lore.kernel.org/r/20220918115506.61870-1-mezin.alexander@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (emc2305) Remove unnecessary range check
Guenter Roeck [Wed, 14 Sep 2022 10:20:56 +0000 (03:20 -0700)]
hwmon: (emc2305) Remove unnecessary range check

Static analyzers report:

drivers/hwmon/emc2305.c:194 emc2305_set_cur_state()
warn: impossible condition '(val > 255) => (0-255 > 255)'

'val' is u8 and thus can never be larger than 255. In theory
the operation calculating 'val' could result in a value larger
than 255, but this won't happen because its parameter has already
been range checked and it is guaranteed that the result never exceeds
255. Remove the unnecessary value check.

Cc: Michael Shych <michaelsh@nvidia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) skip reset-control deassert for SOCs that don't support it
Eliav Farber [Thu, 8 Sep 2022 15:24:37 +0000 (15:24 +0000)]
hwmon: (mr75203) skip reset-control deassert for SOCs that don't support it

Don't fail the probe function and don't deassert the reset controller if
a "reset" property doesn't exist in the device tree.

Change is done for SOCs that don't support a reset controller.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-10-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: (mr75203) change "resets" property to be optional
Eliav Farber [Thu, 8 Sep 2022 15:24:36 +0000 (15:24 +0000)]
dt-bindings: hwmon: (mr75203) change "resets" property to be optional

Change "resets" property to be optional instead of required, for SOCs
that don't support a reset controller.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-9-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: (mr75203) add description for Moortec's PVT controller
Eliav Farber [Thu, 8 Sep 2022 15:24:35 +0000 (15:24 +0000)]
dt-bindings: hwmon: (mr75203) add description for Moortec's PVT controller

This changes adds a detailed description for the mr75203 controller and
for some of the analog IPs controlled by it.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-8-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (aquacomputer_d5next) Add support for Aquacomputer High Flow Next
Aleksa Savic [Wed, 7 Sep 2022 10:07:39 +0000 (12:07 +0200)]
hwmon: (aquacomputer_d5next) Add support for Aquacomputer High Flow Next

Extend aquacomputer_d5next driver to expose various hardware
sensors of the Aquacomputer High Flow Next flow sensor, which
communicates through a proprietary USB HID protocol.

The High Flow Next exposes +5V voltages, water quality, conductivity
and flow readings. A temperature sensor can be connected to it, in
which case it provides its reading and an estimation of the
dissipated/absorbed power in the liquid cooling loop.

Additionally, serial number and firmware version are exposed through
debugfs.

Registry offsets were discovered and tested by users on Github [1] [2].

[1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/issues/8
[2] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/34

Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20220907100739.806571-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (tps23861) create unique debugfs directory per device
Alexandru Gagniuc [Wed, 7 Sep 2022 01:54:05 +0000 (20:54 -0500)]
hwmon: (tps23861) create unique debugfs directory per device

On systems with more than one tps23861, creating the debugfs directory
for additional devices fails with

    debugfs: Directory 'tps23861' with parent '/' already present!

To resolve this, include the hwmon device name in the directory name.
Since the name is unique, this guarantees that the debugfs directory
is unique.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220907015405.16547-2-mr.nuke.me@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (tps23861) reduce count of i2c transactions for port_status
Alexandru Gagniuc [Wed, 7 Sep 2022 01:54:04 +0000 (20:54 -0500)]
hwmon: (tps23861) reduce count of i2c transactions for port_status

When reading the 'port_status' debugfs entry, some I2C registers were
read more than once. This looks inefficient in an I2C trace.

To reduce I2C traffic, update tps23861_port_status_show() to only read
each register once. Indexing the port number from 0 instead of 1 also
allows simplifying things a bit.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Link: https://lore.kernel.org/r/20220907015405.16547-1-mr.nuke.me@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (emc2305) Remove unused including <linux/version.h>
Jiapeng Chong [Thu, 1 Sep 2022 02:23:32 +0000 (10:23 +0800)]
hwmon: (emc2305) Remove unused including <linux/version.h>

./drivers/hwmon/emc2305.c: 14 linux/version.h not needed.

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2024
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220901022332.40248-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodocs: hwmon: add emc2305.rst to docs
Michael Shych [Wed, 10 Aug 2022 17:15:52 +0000 (20:15 +0300)]
docs: hwmon: add emc2305.rst to docs

Add description of emc2305 driver.

Signed-off-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20220810171552.56417-4-michaelsh@nvidia.com
[groeck: Fixed htmldocs warnings]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (emc2305) add support for EMC2301/2/3/5 RPM-based PWM Fan Speed Controller.
Michael Shych [Wed, 10 Aug 2022 17:15:51 +0000 (20:15 +0300)]
hwmon: (emc2305) add support for EMC2301/2/3/5 RPM-based PWM Fan Speed Controller.

Add driver for Microchip EMC2301/2/3/5 RPM-based PWM Fan Speed Controller.
Modify Makefile and Kconfig to support Microchip EMC2305 RPM-based
PWM Fan Speed Controller.

Signed-off-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20220810171552.56417-3-michaelsh@nvidia.com
[groeck: Drop unnecessary () around DIV_ROUND_CLOSEST()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agoplatform_data/emc2305: define platform data for EMC2305 driver
Michael Shych [Wed, 10 Aug 2022 17:15:50 +0000 (20:15 +0300)]
platform_data/emc2305: define platform data for EMC2305 driver

Introduce platform data structure for EM2305 driver to allow configuration
device PWMs and thermal zones by passing required platform data
to the driver. If no platform data is provided, the driver is supposed
to work with default settings.

Signed-off-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20220810171552.56417-2-michaelsh@nvidia.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (max31790) add fanN_enable
Justin Ledford [Mon, 29 Aug 2022 19:59:30 +0000 (19:59 +0000)]
hwmon: (max31790) add fanN_enable

The MAX31790 has a tach input enable bit in each fan's configuration
register. This is only enabled by the driver if RPM mode is selected,
but the driver doesn't provide a way to independently enable tachometer
input regardless of the regulator mode.

By adding the fanN_enable sysfs files, we can decouple the tach input
from the regulator mode. Also update the documentation.

Signed-off-by: Justin Ledford <justinledford@google.com>
Link: https://lore.kernel.org/r/20220829195930.2521755-1-justinledford@google.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agopwm: core: Make of_pwm_get() static
Andy Shevchenko [Fri, 26 Aug 2022 17:26:42 +0000 (20:26 +0300)]
pwm: core: Make of_pwm_get() static

There are no users outside of PWM core of the of_pwm_get().
Make it static.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220826172642.16404-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agopwm: core: Get rid of unused devm_of_pwm_get()
Andy Shevchenko [Fri, 26 Aug 2022 17:26:41 +0000 (20:26 +0300)]
pwm: core: Get rid of unused devm_of_pwm_get()

The devm_of_pwm_get() has recently lost its single user, drop
the dead API as well.

Note, the new code should use either plain pwm_get() or managed
devm_pwm_get() or devm_fwnode_pwm_get() APIs.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220826172642.16404-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (pwm-fan) Replace OF specific call to PWM by plain one
Andy Shevchenko [Fri, 26 Aug 2022 17:26:40 +0000 (20:26 +0300)]
hwmon: (pwm-fan) Replace OF specific call to PWM by plain one

There is no need to call OF specific devm_of_pwm_get() since
the device node parameter duplicates in the device parameter.
Hence we may safely replace it by plain devm_pwm_get() call.

This allows to drop devm_of_pwm_get() as no more users will be.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220826172642.16404-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (sparx5) Use devm_clk_get_enabled() helper
Christophe JAILLET [Wed, 24 Aug 2022 10:25:13 +0000 (12:25 +0200)]
hwmon: (sparx5) Use devm_clk_get_enabled() helper

The devm_clk_get_enabled() helper:
   - calls devm_clk_get()
   - calls clk_prepare_enable() and registers what is needed in order to
     call clk_disable_unprepare() when needed, as a managed resource.

This simplifies the code, the error handling paths and avoid the need of
a dedicated function used with devm_add_action_or_reset().

Based on my test with allyesconfig, this reduces the .o size from:
   text    data     bss     dec     hex filename
   2419    1472       0    3891     f33 drivers/hwmon/sparx5-temp.o
down to:
   2155    1472       0    3627     e2b drivers/hwmon/sparx5-temp.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/cfe4c965074b5ecbe03830b05e038b4594c7b970.1661336689.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (dell-smm) Improve warning messages
Armin Wolf [Mon, 22 Aug 2022 17:40:53 +0000 (19:40 +0200)]
hwmon: (dell-smm) Improve warning messages

When dell-smm-hwmon is loaded on a machine with a buggy BIOS
with the option "force" being enabled, it wrongly prints
that the buggy features where disabled. This may cause
users to wrongly assume that the driver still protects them
from these BIOS bugs even with "force" being enabled.

Replace the messages with two messages each which are depending
on the value of the "force" parameter. The messages which are
being printed when "force" is not set use dev_notice() instead
of dev_warn() since they only serve as a notice.

Tested on a Dell Inspiron 3505.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20220822174053.8750-3-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (iio_hwmon) Make use of device properties
Andy Shevchenko [Fri, 26 Aug 2022 17:37:00 +0000 (20:37 +0300)]
hwmon: (iio_hwmon) Make use of device properties

Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.

Include mod_devicetable.h explicitly to replace the dropped of.h
which included mod_devicetable.h indirectly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220826173700.17395-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agoMAINTAINERS: Update Juerg Haefliger's email address
Juerg Haefliger [Fri, 19 Aug 2022 05:51:09 +0000 (05:51 +0000)]
MAINTAINERS: Update Juerg Haefliger's email address

Use my main @proton.me email address.

Signed-off-by: Juerg Haefliger <juergh@proton.me>
Link: https://lore.kernel.org/r/20220819055039.840221-1-juergh@proton.me
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: move from strlcpy with unused retval to strscpy
Wolfram Sang [Thu, 18 Aug 2022 21:00:11 +0000 (23:00 +0200)]
hwmon: move from strlcpy with unused retval to strscpy

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20220818210014.6769-1-wsa+renesas@sang-engineering.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (corsair-psu) add reporting of rail mode via debugfs
Wilken Gottwalt [Thu, 11 Aug 2022 08:26:37 +0000 (08:26 +0000)]
hwmon: (corsair-psu) add reporting of rail mode via debugfs

Add reporting if the PSU is running in single or multi rail mode via
ocpmode debugfs entry. Also update the documentation and driver comments
accordingly.

Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/YvS9PZKr0xqFqJny@monster.localdomain
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (aquacomputer_d5next) Add support for reading virtual temp sensors
Aleksa Savic [Wed, 17 Aug 2022 12:14:41 +0000 (14:14 +0200)]
hwmon: (aquacomputer_d5next) Add support for reading virtual temp sensors

Add support for reading virtual temperature sensors for the D5 Next, Octo,
Quadro and Farbwerk 360.

Virtual temperature sensors are written to the device by the user, pulling
from an arbitrary value source. Writing to them is not yet reverse
engineered, so the only way to set them for now is to use the official
software.

Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20220817121441.112198-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (asus_wmi_ec_sensors) remove driver
Eugene Shalygin [Wed, 20 Jul 2022 07:20:16 +0000 (09:20 +0200)]
hwmon: (asus_wmi_ec_sensors) remove driver

This driver utilises a WMI interface found in AMD 500 series ASUS boards,
to read EC registers. But it turned out that ASUS abandoned the
interface, as it disappeared from Intel 600 series boards. Additionally,
the WMI interface was incredibly slow. Therefore this driver was deprecated
in favor of the asus_ec_sensors driver, which supports more boards, more
sensors, and is faster.

Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20220720072016.102086-2-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: sparx5: use correct clock
Robert Marko [Tue, 9 Aug 2022 11:22:08 +0000 (13:22 +0200)]
dt-bindings: hwmon: sparx5: use correct clock

SparX-5 temperature sensor uses system reference clock and not the AHB bus
clock as indicated by the register information [1].

So, correct the clock description as well the included example.

[1] https://microchip-ung.github.io/sparx-5_reginfo/reginfo_sparx-5.html?select=hsiowrap,temp_sensor,temp_sensor_cfg,clk_cycles_1us

Fixes: f5520753c16f ("dt-bindings: hwmon: Add Sparx5 temperature sensor")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220809112209.241045-1-robert.marko@sartura.hr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (gsc-hwmon) Call of_node_get() before of_find_xxx API
Liang He [Fri, 16 Sep 2022 15:47:08 +0000 (23:47 +0800)]
hwmon: (gsc-hwmon) Call of_node_get() before of_find_xxx API

In gsc_hwmon_get_devtree_pdata(), we should call of_node_get() before
the of_find_compatible_node() which will automatically call
of_node_put() for the 'from' argument.

Fixes: 3bce5377ef66 ("hwmon: Add Gateworks System Controller support")
Signed-off-by: Liang He <windhl@126.com>
Co-developed-by: Mengda Chen <chenmengda2009@163.com>
Signed-off-by: Mengda Chen <chenmengda2009@163.com>
Link: https://lore.kernel.org/r/20220916154708.3084515-1-chenmengda2009@163.com
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (aquacomputer_d5next) Fix Quadro fan speed offsets
Aleksa Savic [Wed, 14 Sep 2022 11:43:27 +0000 (13:43 +0200)]
hwmon: (aquacomputer_d5next) Fix Quadro fan speed offsets

The offsets for setting speeds of fans connected to Quadro are off by one.
Set them to their correct values.

The offsets as shown point to registers for setting the fan control mode,
which will be explored in future patches, but slipped in here. When
setting fan speeds, the resulting values were overlapping, which made the
fans still run in my initial testing.

Fixes: cdbe34da01e3 ("hwmon: (aquacomputer_d5next) Add support for Aquacomputer Quadro fan controller")
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20220914114327.6941-1-savicaleksa83@gmail.com
Cc: stable@vger.kenrel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agoLinux 6.0-rc5
Linus Torvalds [Sun, 11 Sep 2022 20:22:01 +0000 (16:22 -0400)]
Linux 6.0-rc5

2 years agoMerge tag 'kbuild-fixes-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 11 Sep 2022 19:16:47 +0000 (15:16 -0400)]
Merge tag 'kbuild-fixes-v6.0-2' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Remove unused scripts/gcc-ld script

 - Add zstd support to scripts/extract-ikconfig

 - Check 'make headers' for UML

 - Fix scripts/mksysmap to ignore local symbols

* tag 'kbuild-fixes-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  mksysmap: Fix the mismatch of 'L0' symbols in System.map
  kbuild: disable header exports for UML in a straightforward way
  scripts/extract-ikconfig: add zstd compression support
  scripts: remove obsolete gcc-ld script

2 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Sun, 11 Sep 2022 11:48:21 +0000 (07:48 -0400)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Three small arm64 fixes, all related to optional architecture
  extensions: BTI, SME and 52-bit virtual addressing:

   - Disable in-kernel BTI when compiling with GCC, as it makes invalid
     assumptions about the distance between functions which has led to
     crashes when calling modules on a CPU with BTI support

   - Remove bogus TIF_SME flag management if memory allocation fails in
     the ptrace code

   - Fix the resume path when configured for 52-bit virtual addressing"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mm: fix resume for 52-bit enabled builds
  arm64/ptrace: Don't clear calling process' TIF_SME on OOM
  arm64/bti: Disable in kernel BTI when cross section thunks are broken

2 years agoMerge tag 'i2c-for-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sun, 11 Sep 2022 11:39:03 +0000 (07:39 -0400)]
Merge tag 'i2c-for-6.0-rc5' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Only documentation and DT binding fixes and improvements"

* tag 'i2c-for-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  dt-bindings: i2c: renesas,riic: Fix 'unevaluatedProperties' warnings
  docs: i2c: piix4: Fix typos, add markup, drop link
  docs: i2c: i2c-topology: reorder sections more logically
  docs: i2c: i2c-topology: fix incorrect heading
  docs: i2c: i2c-topology: fix typo

2 years agoMerge tag 'iommu-fixes-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 11 Sep 2022 11:32:26 +0000 (07:32 -0400)]
Merge tag 'iommu-fixes-v6.0-rc4' of git://git./linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Intel VT-d fixes from Lu Baolu:
     - Boot kdump kernels with VT-d scalable mode on
     - Calculate the right page table levels
     - Fix two recursive locking issues
     - Fix a lockdep splat issue

 - AMD IOMMU fixes:
     - Fix for completion-wait command to use full 64 bits of data
     - Fix PASID related issue where GPU sound devices failed to
       initialize

 - Fix for Virtio-IOMMU to report correct caching behavior, needed for
   use with VFIO

* tag 'iommu-fixes-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu: Fix false ownership failure on AMD systems with PASID activated
  iommu/vt-d: Fix possible recursive locking in intel_iommu_init()
  iommu/virtio: Fix interaction with VFIO
  iommu/vt-d: Fix lockdep splat due to klist iteration in atomic context
  iommu/vt-d: Fix recursive lock issue in iommu_flush_dev_iotlb()
  iommu/vt-d: Correctly calculate sagaw value of IOMMU
  iommu/vt-d: Fix kdump kernels boot failure with scalable mode
  iommu/amd: use full 64-bit value in build_completion_wait()

2 years agoMerge tag 'mips-fixes_6.0_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips...
Linus Torvalds [Sun, 11 Sep 2022 11:21:56 +0000 (07:21 -0400)]
Merge tag 'mips-fixes_6.0_1' of git://git./linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - fix for loongson32 starup hang

 - fix for octeon irq setup problem

 - fix compiler warning for new CONFIG option

 - switch to SPARSEMEM_EXTREME for all platforms selecting SPARSEMEM

* tag 'mips-fixes_6.0_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: Select SPARSEMEM_EXTREME
  MIPS: OCTEON: irq: Fix octeon_irq_force_ciu_mapping()
  MIPS: octeon: Get rid of preprocessor directives around RESERVE32
  MIPS: loongson32: ls1c: Fix hang during startup

2 years agoiommu: Fix false ownership failure on AMD systems with PASID activated
Jason Gunthorpe [Fri, 9 Sep 2022 19:46:31 +0000 (16:46 -0300)]
iommu: Fix false ownership failure on AMD systems with PASID activated

The AMD IOMMU driver cannot activate PASID mode on a RID without the RID's
translation being set to IDENTITY. Further it requires changing the RID's
page table layout from the normal v1 IOMMU_DOMAIN_IDENTITY layout to a
different v2 layout.

It does this by creating a new iommu_domain, configuring that domain for
v2 identity operation and then attaching it to the group, from within the
driver. This logic assumes the group is already set to the IDENTITY domain
and is being used by the DMA API.

However, since the ownership logic is based on the group's domain pointer
equaling the default domain to detect DMA API ownership, this causes it to
look like the group is not attached to the DMA API any more. This blocks
attaching drivers to any other devices in the group.

In a real system this manifests itself as the HD-audio devices on some AMD
platforms losing their device drivers.

Work around this unique behavior of the AMD driver by checking for
equality of IDENTITY domains based on their type, not their pointer
value. This allows the AMD driver to have two IDENTITY domains for
internal purposes without breaking the check.

Have the AMD driver properly declare that the special domain it created is
actually an IDENTITY domain.

Cc: Robin Murphy <robin.murphy@arm.com>
Cc: stable@vger.kernel.org
Fixes: 512881eacfa7 ("bus: platform,amba,fsl-mc,PCI: Add device DMA ownership management")
Reported-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/0-v1-ea566e16b06b+811-amd_owner_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2 years agoiommu/vt-d: Fix possible recursive locking in intel_iommu_init()
Lu Baolu [Sun, 11 Sep 2022 03:18:45 +0000 (11:18 +0800)]
iommu/vt-d: Fix possible recursive locking in intel_iommu_init()

The global rwsem dmar_global_lock was introduced by commit 3a5670e8ac932
("iommu/vt-d: Introduce a rwsem to protect global data structures"). It
is used to protect DMAR related global data from DMAR hotplug operations.

The dmar_global_lock used in the intel_iommu_init() might cause recursive
locking issue, for example, intel_iommu_get_resv_regions() is taking the
dmar_global_lock from within a section where intel_iommu_init() already
holds it via probe_acpi_namespace_devices().

Using dmar_global_lock in intel_iommu_init() could be relaxed since it is
unlikely that any IO board must be hot added before the IOMMU subsystem is
initialized. This eliminates the possible recursive locking issue by moving
down DMAR hotplug support after the IOMMU is initialized and removing the
uses of dmar_global_lock in intel_iommu_init().

Fixes: d5692d4af08cd ("iommu/vt-d: Fix suspicious RCU usage in probe_acpi_namespace_devices()")
Reported-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/894db0ccae854b35c73814485569b634237b5538.1657034828.git.robin.murphy@arm.com
Link: https://lore.kernel.org/r/20220718235325.3952426-1-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2 years agoMerge tag 's390-6.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sat, 10 Sep 2022 17:19:31 +0000 (13:19 -0400)]
Merge tag 's390-6.0-4' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - Fix absolute zero lowcore corruption on kdump when CPU0 is offline

 - Fix lowcore protection setup for offline CPU restart

* tag 's390-6.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/smp: enforce lowcore protection on CPU restart
  s390/boot: fix absolute zero lowcore corruption on boot

2 years agoMerge tag 'hwmon-for-v6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groec...
Linus Torvalds [Sat, 10 Sep 2022 17:02:10 +0000 (13:02 -0400)]
Merge tag 'hwmon-for-v6.0-rc5' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix severe regression in asus-ec-sensors driver
   which resulted in EC driver failures

 - Fix various bugs in mr75203 driver

 - Fix byte order bug in tps23861 driver

* tag 'hwmon-for-v6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (asus-ec-sensors) autoload module via DMI data
  hwmon: (mr75203) enable polling for all VM channels
  hwmon: (mr75203) fix multi-channel voltage reading
  hwmon: (mr75203) fix voltage equation for negative source input
  hwmon: (mr75203) update pvt->v_num and vm_num to the actual number of used sensors
  hwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" not defined
  dt-bindings: hwmon: (mr75203) fix "intel,vm-map" property to be optional
  hwmon: (tps23861) fix byte order in resistance register

2 years agoMerge tag 'dma-mapping-6.0-2022-09-10' of git://git.infradead.org/users/hch/dma-mapping
Linus Torvalds [Sat, 10 Sep 2022 16:18:19 +0000 (12:18 -0400)]
Merge tag 'dma-mapping-6.0-2022-09-10' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fixes from Christoph Hellwig:

 - revert a panic on swiotlb initialization failure (Yu Zhao)

 - fix the lookup for partial syncs in dma-debug (Robin Murphy)

 - fix a shift overflow in swiotlb (Chao Gao)

 - fix a comment typo in swiotlb (Chao Gao)

 - mark a function static now that all abusers are gone (Christoph
   Hellwig)

* tag 'dma-mapping-6.0-2022-09-10' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: mark dma_supported static
  swiotlb: fix a typo
  swiotlb: avoid potential left shift overflow
  dma-debug: improve search for partial syncs
  Revert "swiotlb: panic if nslabs is too small"

2 years agoarm64: mm: fix resume for 52-bit enabled builds
Joey Gouly [Fri, 9 Sep 2022 12:43:11 +0000 (13:43 +0100)]
arm64: mm: fix resume for 52-bit enabled builds

__cpu_setup() was changed to take the actual number of VA bits in x0,
however the resume path was not updated at the same time.

Load `vabits_actual` in the resume path, to ensure that the correct
number of VA bits is used.

This fixes booting v6.0-rc kernels on my Juno.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Fixes: 0aaa68532e9d ("arm64: mm: fix booting with 52-bit address space")
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220909124311.38489-1-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Fri, 9 Sep 2022 21:40:28 +0000 (17:40 -0400)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Eight patches which looks like quite a large core change, but most of
  the diffstat is reverting the attempt to rejig reference counting
  introduced in the last merge window which caused issues with device
  and module removal.

  Of the remaining four patches, only the fix use-after-free is
  substantial"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mpt3sas: Fix use-after-free warning
  scsi: core: Fix a use-after-free
  scsi: core: Revert "Make sure that targets outlive devices"
  scsi: core: Revert "Make sure that hosts outlive targets"
  scsi: core: Revert "Simplify LLD module reference counting"
  scsi: core: Revert "Call blk_mq_free_tag_set() earlier"
  scsi: lpfc: Add missing destroy_workqueue() in error path
  scsi: lpfc: Return DID_TRANSPORT_DISRUPTED instead of DID_REQUEUE

2 years agomksysmap: Fix the mismatch of 'L0' symbols in System.map
Youling Tang [Thu, 1 Sep 2022 11:10:59 +0000 (19:10 +0800)]
mksysmap: Fix the mismatch of 'L0' symbols in System.map

When System.map was generated, the kernel used mksysmap to filter the
kernel symbols, we need to filter "L0" symbols in LoongArch architecture.

$ cat System.map | grep L0
9000000000221540 t L0

The L0 symbol exists in System.map, but not in .tmp_System.map. When
"cmp -s System.map .tmp_System.map" will show "Inconsistent kallsyms
data" error message in link-vmlinux.sh script.

Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agoMerge tag 'driver-core-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 9 Sep 2022 19:08:40 +0000 (15:08 -0400)]
Merge tag 'driver-core-6.0-rc5' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are some small driver core and debugfs fixes for 6.0-rc5.

  Included in here are:

   - multiple attempts to get the arch_topology code to work properly on
     non-cluster SMT systems. First attempt caused build breakages in
     linux-next and 0-day, second try worked.

   - debugfs fixes for a long-suffering memory leak. The pattern of
     debugfs_remove(debugfs_lookup(...)) turns out to leak dentries, so
     add debugfs_lookup_and_remove() to fix this problem. Also fix up
     the scheduler debug code that highlighted this problem. Fixes for
     other subsystems will be trickling in over the next few months for
     this same issue once the debugfs function is merged.

  All of these have been in linux-next since Wednesday with no reported
  problems"

* tag 'driver-core-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  arch_topology: Make cluster topology span at least SMT CPUs
  sched/debug: fix dentry leak in update_sched_domain_debugfs
  debugfs: add debugfs_lookup_and_remove()
  driver core: fix driver_set_override() issue with empty strings
  Revert "arch_topology: Make cluster topology span at least SMT CPUs"
  arch_topology: Make cluster topology span at least SMT CPUs

2 years agoMerge tag 'block-6.0-2022-09-09' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 9 Sep 2022 19:03:08 +0000 (15:03 -0400)]
Merge tag 'block-6.0-2022-09-09' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe pull via Christoph:
      - fix a use after free in nvmet (Bart Van Assche)
      - fix a use after free when detecting digest errors
        (Sagi Grimberg)
      - fix regression that causes sporadic TCP requests to time out
        (Sagi Grimberg)
      - fix two off by ones errors in the nvmet ZNS support
        (Dennis Maisenbacher)
      - requeue aen after firmware activation (Keith Busch)

 - Fix missing request flags in debugfs code (me)

 - Partition scan fix (Ming)

* tag 'block-6.0-2022-09-09' of git://git.kernel.dk/linux-block:
  block: add missing request flags to debugfs code
  nvme: requeue aen after firmware activation
  nvmet: fix mar and mor off-by-one errors
  nvme-tcp: fix regression that causes sporadic requests to time out
  nvme-tcp: fix UAF when detecting digest errors
  nvmet: fix a use-after-free
  block: don't add partitions if GD_SUPPRESS_PART_SCAN is set

2 years agoMerge tag 'io_uring-6.0-2022-09-09' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 9 Sep 2022 18:57:18 +0000 (14:57 -0400)]
Merge tag 'io_uring-6.0-2022-09-09' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - Removed function that became unused after last week's merge (Jiapeng)

 - Two small fixes for kbuf recycling (Pavel)

 - Include address copy for zc send for POLLFIRST (Pavel)

 - Fix for short IO handling in the normal read/write path (Pavel)

* tag 'io_uring-6.0-2022-09-09' of git://git.kernel.dk/linux-block:
  io_uring/rw: fix short rw error handling
  io_uring/net: copy addr for zc on POLL_FIRST
  io_uring: recycle kbuf recycle on tw requeue
  io_uring/kbuf: fix not advancing READV kbuf ring
  io_uring/notif: Remove the unused function io_notif_complete()

2 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Fri, 9 Sep 2022 18:46:44 +0000 (14:46 -0400)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Many bug fixes in several drivers:

   - Fix misuse of the DMA API in rtrs

   - Several irdma issues: hung task due to SQ flushing, incorrect
     capability reporting to userspace, improper error handling for MW
     corners, touching an uninitialized SGL for during invalidation.

   - hns was using the wrong page size limits for the HW, an incorrect
     calculation of wqe_shift causing WQE corruption, and mis computed a
     timer id.

   - Fix a crash in SRP triggered by blktests

   - Fix compiler errors by calling virt_to_page() with the proper type
     in siw

   - Userspace triggerable deadlock in ODP

   - mlx5 could use the wrong profile due to some driver loading races,
     counters were not working in some device configurations, and a
     crash on error unwind"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/irdma: Report RNR NAK generation in device caps
  RDMA/irdma: Use s/g array in post send only when its valid
  RDMA/irdma: Return correct WC error for bind operation failure
  RDMA/irdma: Return error on MR deregister CQP failure
  RDMA/irdma: Report the correct max cqes from query device
  MAINTAINERS: Update maintainers of HiSilicon RoCE
  RDMA/mlx5: Fix UMR cleanup on error flow of driver init
  RDMA/mlx5: Set local port to one when accessing counters
  RDMA/mlx5: Rely on RoCE fw cap instead of devlink when setting profile
  IB/core: Fix a nested dead lock as part of ODP flow
  RDMA/siw: Pass a pointer to virt_to_page()
  RDMA/srp: Set scmnd->result only when scmnd is not NULL
  RDMA/hns: Remove the num_qpc_timer variable
  RDMA/hns: Fix wrong fixed value of qp->rq.wqe_shift
  RDMA/hns: Fix supported page size
  RDMA/cma: Fix arguments order in net device validation
  RDMA/irdma: Fix drain SQ hang with no completion
  RDMA/rtrs-srv: Pass the correct number of entries for dma mapped SGL
  RDMA/rtrs-clt: Use the right sg_cnt after ib_dma_map_sg

2 years agoMerge tag 'drm-fixes-2022-09-10' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 9 Sep 2022 18:35:22 +0000 (14:35 -0400)]
Merge tag 'drm-fixes-2022-09-10' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "From a train in the Irish countryside, regular drm fixes for 6.0-rc5.

  This is mostly amdgpu/amdkfd and i915 fixes, then one panfrost, one
  ttm and one edid fix. Nothing too major going on. Hopefully a quiet
  week next week for LPC.

  edid:
   - Fix EDID 1.4 range-descriptor parsing

  ttm:
   - Fix ghost-object bulk moves

  i915:
   - Fix MIPI sequence block copy from BIOS' table
   - Fix PCODE min freq setup when GuC's SLPC is in use
   - Implement Workaround for eDP
   - Fix has_flat_ccs selection for DG1

  amdgpu:
   - Firmware header fix
   - SMU 13.x fix
   - Debugfs memory leak fix
   - NBIO 7.7 fix
   - Firmware memory leak fix

  amdkfd:
   - Debug output fix

  panfrost:
   - Fix devfreq OPP"

* tag 'drm-fixes-2022-09-10' of git://anongit.freedesktop.org/drm/drm:
  drm/panfrost: devfreq: set opp to the recommended one to configure regulator
  drm/ttm: cleanup the resource of ghost objects after locking them
  drm/amdgpu: prevent toc firmware memory leak
  drm/amdgpu: correct doorbell range/size value for CSDMA_DOORBELL_RANGE
  drm/amdkfd: print address in hex format rather than decimal
  drm/amd/display: fix memory leak when using debugfs_lookup()
  drm/amd/pm: add missing SetMGpuFanBoostLimitRpm mapping for SMU 13.0.7
  drm/amd/amdgpu: add rlc_firmware_header_v2_4 to amdgpu_firmware_header
  drm/i915: consider HAS_FLAT_CCS() in needs_ccs_pages
  drm/i915: Implement WaEdpLinkRateDataReload
  drm/i915/slpc: Let's fix the PCODE min freq table setup for SLPC
  drm/i915/bios: Copy the whole MIPI sequence block
  drm/ttm: update bulk move object of ghost BO
  drm/edid: Handle EDID 1.4 range descriptor h/vfreq offsets

2 years agoMerge tag 'linux-kselftest-kunit-fixes-6.0-rc5' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Fri, 9 Sep 2022 18:13:36 +0000 (14:13 -0400)]
Merge tag 'linux-kselftest-kunit-fixes-6.0-rc5' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull KUnit fixes from Shuah Khan:
 "Two fixes to test build and a fix for incorrect taint reason reporting"

* tag 'linux-kselftest-kunit-fixes-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  tools: Add new "test" taint to kernel-chktaint
  kunit: fix Kconfig for build-in tests USB4 and Nitro Enclaves
  kunit: fix assert_type for comparison macros

2 years agoMerge tag 'riscv-for-linus-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 9 Sep 2022 18:06:10 +0000 (14:06 -0400)]
Merge tag 'riscv-for-linus-6.0-rc5' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A pair of device tree fixes for the Polarfire SOC

 - A fix to avoid overflowing the PMU counter array when firmware
   incorrectly reports the number of supported counters, which manifests
   on OpenSBI versions prior to 1.1

* tag 'riscv-for-linus-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  perf: RISC-V: fix access beyond allocated array
  riscv: dts: microchip: use an mpfs specific l2 compatible
  dt-bindings: riscv: sifive-l2: add a PolarFire SoC compatible

2 years agoMerge tag 'powerpc-6.0-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Fri, 9 Sep 2022 18:00:45 +0000 (14:00 -0400)]
Merge tag 'powerpc-6.0-5' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:

 - Fix crashes on bare metal due to the new plkps driver trying to probe
   and call the hypervisor on non-pseries machines.

Thanks to Nathan Chancellor and Dan Horák.

* tag 'powerpc-6.0-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries: Fix plpks crash on non-pseries

2 years agohwmon: (asus-ec-sensors) autoload module via DMI data
Eugene Shalygin [Fri, 9 Sep 2022 15:56:53 +0000 (17:56 +0200)]
hwmon: (asus-ec-sensors) autoload module via DMI data

Replace autoloading data based on the ACPI EC device with the DMI
records for motherboards models. The ACPI method created a bug that when
this driver returns error from the probe function because of the
unsupported motherboard model, the ACPI subsystem concludes
that the EC device does not work properly.

Fixes: 5cd29012028d ("hwmon: (asus-ec-sensors) introduce ec_board_info struct for board data")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=216412
Bug: https://bugzilla.redhat.com/show_bug.cgi?id=2121844
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20220909155654.123398-2-eugene.shalygin@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agoMerge tag 'drm-intel-fixes-2022-09-08' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Fri, 9 Sep 2022 15:37:01 +0000 (01:37 +1000)]
Merge tag 'drm-intel-fixes-2022-09-08' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix MIPI sequence block copy from BIOS' table. (Ville)
- Fix PCODE min freq setup when GuC's SLPC is in use. (Rodrigo)
- Implement Workaround for eDP. (Ville)
- Fix has_flat_ccs selection for DG1. (Matt)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Yxn1WpmUJnJpqq23@intel.com
2 years agomips: Select SPARSEMEM_EXTREME
Alexander Sverdlin [Fri, 9 Sep 2022 09:30:42 +0000 (11:30 +0200)]
mips: Select SPARSEMEM_EXTREME

Commit c46173183657 ("MIPS: Add NUMA support for Loongson-3") has increased
.bss size of the Octeon kernel from 16k to 16M. Providing the conditions
for SPARSEMEM_EXTREME avoids the waste of memory.

Thomas has tested the loogsoon64 kernel, where .bss is being reduced by
this patch from 16.5M to 515k.

Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2 years agoMerge tag 'drm-misc-fixes-2022-09-08' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 9 Sep 2022 15:30:02 +0000 (01:30 +1000)]
Merge tag 'drm-misc-fixes-2022-09-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Short summary of fixes pull:

 * edid: Fix EDID 1.4 range-descriptor parsing
 * panfrost: Fix devfreq OPP
 * ttm: Fix ghost-object bulk moves

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YxniKN4rK4qPp+J9@linux-uq9g
2 years agoio_uring/rw: fix short rw error handling
Pavel Begunkov [Fri, 9 Sep 2022 11:11:49 +0000 (12:11 +0100)]
io_uring/rw: fix short rw error handling

We have a couple of problems, first reports of unexpected link breakage
for reads when cqe->res indicates that the IO was done in full. The
reason here is partial IO with retries.

TL;DR; we compare the result in __io_complete_rw_common() against
req->cqe.res, but req->cqe.res doesn't store the full length but rather
the length left to be done. So, when we pass the full corrected result
via kiocb_done() -> __io_complete_rw_common(), it fails.

The second problem is that we don't try to correct res in
io_complete_rw(), which, for instance, might be a problem for O_DIRECT
but when a prefix of data was cached in the page cache. We also
definitely don't want to pass a corrected result into io_rw_done().

The fix here is to leave __io_complete_rw_common() alone, always pass
not corrected result into it and fix it up as the last step just before
actually finishing the I/O.

Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://github.com/axboe/liburing/issues/643
Reported-by: Beld Zhang <beldzhang@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoblock: add missing request flags to debugfs code
Jens Axboe [Thu, 8 Sep 2022 23:26:59 +0000 (17:26 -0600)]
block: add missing request flags to debugfs code

We're missing TIMED_OUT and RESV. Particularly the former is handy
for debugging, let's get them added.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoMerge tag 'for-6.0-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Fri, 9 Sep 2022 11:54:19 +0000 (07:54 -0400)]
Merge tag 'for-6.0-rc4-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few more fixes to zoned mode and one regression fix for chunk limit:

    - Zoned mode fixes:
        - fix how wait/wake up is done when finishing zone
        - fix zone append limit in emulated mode
        - fix mount on devices with conventional zones

   - fix regression, user settable data chunk limit got accidentally
     lowered and causes allocation problems on some profiles (raid0,
     raid1)"

* tag 'for-6.0-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix the max chunk size and stripe length calculation
  btrfs: zoned: fix mounting with conventional zones
  btrfs: zoned: set pseudo max append zone limit in zone emulation mode
  btrfs: zoned: fix API misuse of zone finish waiting

2 years agoMerge tag 'vfio-v6.0-rc5' of https://github.com/awilliam/linux-vfio
Linus Torvalds [Fri, 9 Sep 2022 11:44:33 +0000 (07:44 -0400)]
Merge tag 'vfio-v6.0-rc5' of https://github.com/awilliam/linux-vfio

Pull VFIO fix from Alex Williamson:

 - Fix zero page refcount leak (Alex Williamson)

* tag 'vfio-v6.0-rc5' of https://github.com/awilliam/linux-vfio:
  vfio/type1: Unpin zero pages

2 years agoMerge tag 'sound-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 9 Sep 2022 11:36:10 +0000 (07:36 -0400)]
Merge tag 'sound-6.0-rc5' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Lots of small fixes for various drivers at this time, hopefully it
  will be the last big bump before 6.0 release.

  The significant changes are regression fixes for (yet again) HD-audio
  memory allocations and USB-audio PCM parameter handling, while there
  are many small ASoC device-specific fixes as well as a few
  out-of-bounds and race issues spotted by fuzzers"

* tag 'sound-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
  ALSA: usb-audio: Clear fixed clock rate at closing EP
  ALSA: emu10k1: Fix out of bounds access in snd_emu10k1_pcm_channel_alloc()
  ALSA: hda: Once again fix regression of page allocations with IOMMU
  ALSA: usb-audio: Fix an out-of-bounds bug in __snd_usb_parse_audio_interface()
  ALSA: hda/tegra: Align BDL entry to 4KB boundary
  ALSA: hda/sigmatel: Fix unused variable warning for beep power change
  ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
  ALSA: hda/sigmatel: Keep power up while beep is enabled
  ALSA: aloop: Fix random zeros in capture data when using jiffies timer
  ALSA: usb-audio: Split endpoint setups for hw_params and prepare
  ALSA: usb-audio: Register card again for iface over delayed_register option
  ALSA: usb-audio: Inform the delayed registration more properly
  ASoC: fsl_aud2htx: Add error handler for pm_runtime_enable
  ASoC: fsl_aud2htx: register platform component before registering cpu dai
  ASoC: SOF: ipc4-topology: fix alh_group_ida max value
  ASoC: mchp-spdiftx: Fix clang -Wbitfield-constant-conversion
  ASoC: SOF: Kconfig: Make IPC_MESSAGE_INJECTOR depend on SND_SOC_SOF
  ASoC: SOF: Kconfig: Make IPC_FLOOD_TEST depend on SND_SOC_SOF
  ASoC: fsl_mqs: Fix supported clock DAI format
  ASoC: nau8540: Implement hw constraint for rates
  ...

2 years agoMerge tag 'perf-tools-fixes-for-v6.0-2022-09-08' of git://git.kernel.org/pub/scm...
Linus Torvalds [Fri, 9 Sep 2022 11:31:17 +0000 (07:31 -0400)]
Merge tag 'perf-tools-fixes-for-v6.0-2022-09-08' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix per-thread mmaps for multi-threaded targets, noticed with
   'perf top --pid' with multithreaded targets

 - Fix synthesis failure warnings in 'perf record'

 - Fix L2 Topdown metrics disappearance for raw events in 'perf stat'

 - Fix out of bound access in some CPU masks

 - Fix segfault if there is no CPU PMU table and a metric is sought,
   noticed when building with NO_JEVENTS=1

 - Skip dummy event attr check in 'perf script' fixing nonsensical
   warning about UREGS attribute not set, as 'dummy' events have no
   samples

 - Fix 'iregs' field handling with dummy events on hybrid systems in
   'perf script'

 - Prevent potential memory leak in c2c_he_zalloc() in 'perf c2c'

 - Don't install data files with x permissions

 - Fix types for print format in dlfilter-show-cycles

 - Switch deprecated openssl MD5_* functions to new EVP API in 'genelf'

 - Remove redundant word 'contention' in 'perf lock' help message

* tag 'perf-tools-fixes-for-v6.0-2022-09-08' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf record: Fix synthesis failure warnings
  perf tools: Don't install data files with x permissions
  perf script: Fix Cannot print 'iregs' field for hybrid systems
  perf lock: Remove redundant word 'contention' in help message
  perf dlfilter dlfilter-show-cycles: Fix types for print format
  libperf evlist: Fix per-thread mmaps for multi-threaded targets
  perf c2c: Prevent potential memory leak in c2c_he_zalloc()
  perf genelf: Switch deprecated openssl MD5_* functions to new EVP API
  tools/perf: Fix out of bound access to cpu mask array
  perf affinity: Fix out of bound access to "sched_cpus" mask
  perf stat: Fix L2 Topdown metrics disappear for raw events
  perf script: Skip dummy event attr check
  perf metric: Return early if no CPU PMU table exists

2 years agoMerge tag 'trace-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Fri, 9 Sep 2022 11:27:44 +0000 (07:27 -0400)]
Merge tag 'trace-v6.0-rc4' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Do not stop trace events in modules if TAINT_TEST is set

 - Do not clobber mount options when tracefs is mounted a second time

 - Prevent crash of kprobes in gate area

 - Add static annotation to some non global functions

 - Add some entries into the MAINTAINERS file

 - Fix check of event_mutex held when accessing trigger list

 - Add some __init/__exit annotations

 - Fix reporting of what called hardirq_{enable,disable}_ip function

* tag 'trace-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracefs: Only clobber mode/uid/gid on remount if asked
  kprobes: Prohibit probes in gate area
  rv/reactor: add __init/__exit annotations to module init/exit funcs
  tracing: Fix to check event_mutex is held while accessing trigger list
  tracing: hold caller_addr to hardirq_{enable,disable}_ip
  tracepoint: Allow trace events in modules with TAINT_TEST
  MAINTAINERS: add scripts/tracing/ to TRACING
  MAINTAINERS: Add Runtime Verification (RV) entry
  rv/monitors: Make monitor's automata definition static

2 years agoMerge tag 'asm-generic-fixes-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 9 Sep 2022 11:23:29 +0000 (07:23 -0400)]
Merge tag 'asm-generic-fixes-6.0-rc4' of git://git./linux/kernel/git/arnd/asm-generic

Pull SOFTIRQ_ON_OWN_STACK rework from Arnd Bergmann:
 "Just one fixup patch, reworking the softirq_on_own_stack logic for
  preempt-rt kernels as discussed in

    https://lore.kernel.org/all/CAHk-=wgZSD3W2y6yczad2Am=EfHYyiPzTn3CfXxrriJf9i5W5w@mail.gmail.com/"

* tag 'asm-generic-fixes-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  asm-generic: Conditionally enable do_softirq_own_stack() via Kconfig.

2 years agotracefs: Only clobber mode/uid/gid on remount if asked
Brian Norris [Sat, 27 Aug 2022 00:44:17 +0000 (17:44 -0700)]
tracefs: Only clobber mode/uid/gid on remount if asked

Users may have explicitly configured their tracefs permissions; we
shouldn't overwrite those just because a second mount appeared.

Only clobber if the options were provided at mount time.

Note: the previous behavior was especially surprising in the presence of
automounted /sys/kernel/debug/tracing/.

Existing behavior:

  ## Pre-existing status: tracefs is 0755.
  # stat -c '%A' /sys/kernel/tracing/
  drwxr-xr-x

  ## (Re)trigger the automount.
  # umount /sys/kernel/debug/tracing
  # stat -c '%A' /sys/kernel/debug/tracing/.
  drwx------

  ## Unexpected: the automount changed mode for other mount instances.
  # stat -c '%A' /sys/kernel/tracing/
  drwx------

New behavior (after this change):

  ## Pre-existing status: tracefs is 0755.
  # stat -c '%A' /sys/kernel/tracing/
  drwxr-xr-x

  ## (Re)trigger the automount.
  # umount /sys/kernel/debug/tracing
  # stat -c '%A' /sys/kernel/debug/tracing/.
  drwxr-xr-x

  ## Expected: the automount does not change other mount instances.
  # stat -c '%A' /sys/kernel/tracing/
  drwxr-xr-x

Link: https://lkml.kernel.org/r/20220826174353.2.Iab6e5ea57963d6deca5311b27fb7226790d44406@changeid
Cc: stable@vger.kernel.org
Fixes: 4282d60689d4f ("tracefs: Add new tracefs file system")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2 years agokprobes: Prohibit probes in gate area
Christian A. Ehrhardt [Wed, 7 Sep 2022 20:09:17 +0000 (22:09 +0200)]
kprobes: Prohibit probes in gate area

The system call gate area counts as kernel text but trying
to install a kprobe in this area fails with an Oops later on.
To fix this explicitly disallow the gate area for kprobes.

Found by syzkaller with the following reproducer:
perf_event_open$cgroup(&(0x7f00000001c0)={0x6, 0x80, 0x0, 0x0, 0x0, 0x0, 0x80ffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0xffffffffff600000}}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0)

Sample report:
BUG: unable to handle page fault for address: fffffbfff3ac6000
PGD 6dfcb067 P4D 6dfcb067 PUD 6df8f067 PMD 6de4d067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 21978 Comm: syz-executor.2 Not tainted 6.0.0-rc3-00363-g7726d4c3e60b-dirty #6
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:__insn_get_emulate_prefix arch/x86/lib/insn.c:91 [inline]
RIP: 0010:insn_get_emulate_prefix arch/x86/lib/insn.c:106 [inline]
RIP: 0010:insn_get_prefixes.part.0+0xa8/0x1110 arch/x86/lib/insn.c:134
Code: 49 be 00 00 00 00 00 fc ff df 48 8b 40 60 48 89 44 24 08 e9 81 00 00 00 e8 e5 4b 39 ff 4c 89 fa 4c 89 f9 48 c1 ea 03 83 e1 07 <42> 0f b6 14 32 38 ca 7f 08 84 d2 0f 85 06 10 00 00 48 89 d8 48 89
RSP: 0018:ffffc900088bf860 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffffffff9b9bebc0 RCX: 0000000000000000
RDX: 1ffffffff3ac6000 RSI: ffffc90002d82000 RDI: ffffc900088bf9e8
RBP: ffffffff9d630001 R08: 0000000000000000 R09: ffffc900088bf9e8
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: ffffffff9d630000 R14: dffffc0000000000 R15: ffffffff9d630000
FS:  00007f63eef63640(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff3ac6000 CR3: 0000000029d90005 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 insn_get_prefixes arch/x86/lib/insn.c:131 [inline]
 insn_get_opcode arch/x86/lib/insn.c:272 [inline]
 insn_get_modrm+0x64a/0x7b0 arch/x86/lib/insn.c:343
 insn_get_sib+0x29a/0x330 arch/x86/lib/insn.c:421
 insn_get_displacement+0x350/0x6b0 arch/x86/lib/insn.c:464
 insn_get_immediate arch/x86/lib/insn.c:632 [inline]
 insn_get_length arch/x86/lib/insn.c:707 [inline]
 insn_decode+0x43a/0x490 arch/x86/lib/insn.c:747
 can_probe+0xfc/0x1d0 arch/x86/kernel/kprobes/core.c:282
 arch_prepare_kprobe+0x79/0x1c0 arch/x86/kernel/kprobes/core.c:739
 prepare_kprobe kernel/kprobes.c:1160 [inline]
 register_kprobe kernel/kprobes.c:1641 [inline]
 register_kprobe+0xb6e/0x1690 kernel/kprobes.c:1603
 __register_trace_kprobe kernel/trace/trace_kprobe.c:509 [inline]
 __register_trace_kprobe+0x26a/0x2d0 kernel/trace/trace_kprobe.c:477
 create_local_trace_kprobe+0x1f7/0x350 kernel/trace/trace_kprobe.c:1833
 perf_kprobe_init+0x18c/0x280 kernel/trace/trace_event_perf.c:271
 perf_kprobe_event_init+0xf8/0x1c0 kernel/events/core.c:9888
 perf_try_init_event+0x12d/0x570 kernel/events/core.c:11261
 perf_init_event kernel/events/core.c:11325 [inline]
 perf_event_alloc.part.0+0xf7f/0x36a0 kernel/events/core.c:11619
 perf_event_alloc kernel/events/core.c:12059 [inline]
 __do_sys_perf_event_open+0x4a8/0x2a00 kernel/events/core.c:12157
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f63ef7efaed
Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f63eef63028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f63ef90ff80 RCX: 00007f63ef7efaed
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 00000000200001c0
RBP: 00007f63ef86019c R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 00007f63ef90ff80 R15: 00007f63eef43000
 </TASK>
Modules linked in:
CR2: fffffbfff3ac6000
---[ end trace 0000000000000000 ]---
RIP: 0010:__insn_get_emulate_prefix arch/x86/lib/insn.c:91 [inline]
RIP: 0010:insn_get_emulate_prefix arch/x86/lib/insn.c:106 [inline]
RIP: 0010:insn_get_prefixes.part.0+0xa8/0x1110 arch/x86/lib/insn.c:134
Code: 49 be 00 00 00 00 00 fc ff df 48 8b 40 60 48 89 44 24 08 e9 81 00 00 00 e8 e5 4b 39 ff 4c 89 fa 4c 89 f9 48 c1 ea 03 83 e1 07 <42> 0f b6 14 32 38 ca 7f 08 84 d2 0f 85 06 10 00 00 48 89 d8 48 89
RSP: 0018:ffffc900088bf860 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffffffff9b9bebc0 RCX: 0000000000000000
RDX: 1ffffffff3ac6000 RSI: ffffc90002d82000 RDI: ffffc900088bf9e8
RBP: ffffffff9d630001 R08: 0000000000000000 R09: ffffc900088bf9e8
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: ffffffff9d630000 R14: dffffc0000000000 R15: ffffffff9d630000
FS:  00007f63eef63640(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff3ac6000 CR3: 0000000029d90005 CR4: 0000000000770ef0
PKRU: 55555554
==================================================================

Link: https://lkml.kernel.org/r/20220907200917.654103-1-lk@c--e.de
cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>
cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
cc: "David S. Miller" <davem@davemloft.net>
Cc: stable@vger.kernel.org
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Christian A. Ehrhardt <lk@c--e.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2 years agoperf: RISC-V: fix access beyond allocated array
Sergey Matyukevich [Tue, 30 Aug 2022 15:53:04 +0000 (18:53 +0300)]
perf: RISC-V: fix access beyond allocated array

SBI firmware should report total number of firmware and hardware counters
including unused ones or special ones. In this case the kernel doesn't need
to make any assumptions about gaps in reported counters, e.g. excluded timer
counter. That was fixed in OpenSBI v1.1 by commit 3f66465fb6bf ("lib: pmu:
allow to use the highest available counter"). This kernel patch has no effect
if SBI firmware behaves correctly. However it eliminates access beyond the
allocated pmu_ctr_list if the kernel is used with OpenSBI older than v1.1.

Fixes: e9991434596f ("RISC-V: Add perf platform driver based on SBI PMU extension")
Signed-off-by: Sergey Matyukevich <sergey.matyukevich@syntacore.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220830155306.301714-2-geomatsi@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoperf record: Fix synthesis failure warnings
Adrian Hunter [Wed, 7 Sep 2022 16:24:58 +0000 (19:24 +0300)]
perf record: Fix synthesis failure warnings

Some calls to synthesis functions set err < 0 but only warn about the
failure and continue.  However they do not set err back to zero, relying
on subsequent code to do that.

That changed with the introduction of option --synth. When --synth=no
subsequent functions that set err back to zero are not called.

Fix by setting err = 0 in those cases.

Example:

 Before:

   $ perf record --no-bpf-event --synth=all -o /tmp/huh uname
   Couldn't synthesize bpf events.
   Linux
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.014 MB /tmp/huh (7 samples) ]
   $ perf record --no-bpf-event --synth=no -o /tmp/huh uname
   Couldn't synthesize bpf events.

 After:

   $ perf record --no-bpf-event --synth=no -o /tmp/huh uname
   Couldn't synthesize bpf events.
   Linux
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.014 MB /tmp/huh (7 samples) ]

Fixes: 41b740b6e8a994e5 ("perf record: Add --synth option")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220907162458.72817-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agohwmon: (mr75203) enable polling for all VM channels
Eliav Farber [Thu, 8 Sep 2022 15:24:34 +0000 (15:24 +0000)]
hwmon: (mr75203) enable polling for all VM channels

Configure ip-polling register to enable polling for all voltage monitor
channels.
This enables reading the voltage values for all inputs other than just
input 0.

Fixes: 9d823351a337 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-7-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) fix multi-channel voltage reading
Eliav Farber [Thu, 8 Sep 2022 15:24:33 +0000 (15:24 +0000)]
hwmon: (mr75203) fix multi-channel voltage reading

Fix voltage allocation and reading to support all channels in all VMs.
Prior to this change allocation and reading were done only for the first
channel in each VM.
This change counts the total number of channels for allocation, and takes
into account the channel offset when reading the sample data register.

Fixes: 9d823351a337 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-6-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agoperf tools: Don't install data files with x permissions
Jiri Slaby [Thu, 8 Sep 2022 06:04:26 +0000 (08:04 +0200)]
perf tools: Don't install data files with x permissions

install(1), by default, installs with rwxr-xr-x permissions. Modify
perf's Makefile to pass '-m 644' when installing:

  * Documentation/tips.txt
  * examples/bpf/*
  * perf-completion.sh
  * perf_dlfilter.h header
  * scripts/perl/Perf-Trace-Util/lib/Perf/Trace/*
  * scripts/perl/*.pl
  * tests/attr/*
  * tests/attr.py
  * tests/shell/lib/*.sh
  * trace/strace/groups/*

All those are supposed to be non-executable. Either they are not scripts
at all, or they don't have shebang.

Signed-off-by: <jslaby@suse.cz>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220908060426.9619-1-jslaby@suse.cz
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agohwmon: (mr75203) fix voltage equation for negative source input
Eliav Farber [Thu, 8 Sep 2022 15:24:32 +0000 (15:24 +0000)]
hwmon: (mr75203) fix voltage equation for negative source input

According to Moortec Embedded Voltage Monitor (MEVM) series 3 data
sheet, the minimum input signal is -100mv and maximum input signal
is +1000mv.

The equation used to convert the digital word to voltage uses mixed
types (*val signed and n unsigned), and on 64 bit machines also has
different size, since sizeof(u32) = 4 and sizeof(long) = 8.

So when measuring a negative input, n will be small enough, such that
PVT_N_CONST * n < PVT_R_CONST, and the result of
(PVT_N_CONST * n - PVT_R_CONST) will overflow to a very big positive
32 bit number. Then when storing the result in *val it will be the same
value just in 64 bit (instead of it representing a negative number which
will what happen when sizeof(long) = 4).

When -1023 <= (PVT_N_CONST * n - PVT_R_CONST) <= -1
dividing the number by 1024 should result of in 0, but because ">> 10"
is used, and the sign bit is used to fill the vacated bit positions, it
results in -1 (0xf...fffff) which is wrong.

This change fixes the sign problem and supports negative values by
casting n to long and replacing the shift right with div operation.

Fixes: 9d823351a337 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-5-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) update pvt->v_num and vm_num to the actual number of used sensors
Eliav Farber [Thu, 8 Sep 2022 15:24:31 +0000 (15:24 +0000)]
hwmon: (mr75203) update pvt->v_num and vm_num to the actual number of used sensors

This issue is relevant when "intel,vm-map" is set in device-tree, and
defines a lower number of VMs than actually supported.

This change is needed for all places that use pvt->v_num or vm_num
later on in the code.

Fixes: 9d823351a337 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-4-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agohwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" not defined
Eliav Farber [Thu, 8 Sep 2022 15:24:30 +0000 (15:24 +0000)]
hwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" not defined

Bug - in case "intel,vm-map" is missing in device-tree ,'num' is set
to 0, and no voltage channel infos are allocated.

The reason num is set to 0 when "intel,vm-map" is missing is to set the
entire pvt->vm_idx[] with incremental channel numbers, but it didn't
take into consideration that same num is used later in devm_kcalloc().

If "intel,vm-map" does exist there is no need to set the unspecified
channels with incremental numbers, because the unspecified channels
can't be accessed in pvt_read_in() which is the only other place besides
the probe functions that uses pvt->vm_idx[].

This change fixes the bug by moving the incremental channel numbers
setting to be done only if "intel,vm-map" property is defined (starting
loop from 0), and removing 'num = 0'.

Fixes: 9d823351a337 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Eliav Farber <farbere@amazon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220908152449.35457-3-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agodt-bindings: hwmon: (mr75203) fix "intel,vm-map" property to be optional
Eliav Farber [Thu, 8 Sep 2022 15:24:29 +0000 (15:24 +0000)]
dt-bindings: hwmon: (mr75203) fix "intel,vm-map" property to be optional

Change "intel,vm-map" property to be optional instead of required.

The driver implementation indicates it is not mandatory to have
"intel,vm-map" in the device tree:
 - probe doesn't fail in case it is absent.
 - explicit comment in code - "Incase intel,vm-map property is not
   defined, we assume incremental channel numbers".

Fixes: 748022ef093f ("hwmon: Add DT bindings schema for PVT controller")
Signed-off-by: Eliav Farber <farbere@amazon.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-2-farbere@amazon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2 years agoperf script: Fix Cannot print 'iregs' field for hybrid systems
Zhengjun Xing [Thu, 8 Sep 2022 07:00:30 +0000 (15:00 +0800)]
perf script: Fix Cannot print 'iregs' field for hybrid systems

Commit b91e5492f9d7ca89 ("perf record: Add a dummy event on hybrid
systems to collect metadata records") adds a dummy event on hybrid
systems to fix the symbol "unknown" issue when the workload is created
in a P-core but runs on an E-core. The added dummy event will cause
"perf script -F iregs" to fail. Dummy events do not have "iregs"
attribute set, so when we do evsel__check_attr, the "iregs" attribute
check will fail, so the issue happened.

The following commit [1] has fixed a similar issue by skipping the attr
check for the dummy event because it does not have any samples anyway. It
works okay for the normal mode, but the issue still happened when running
the test in the pipe mode. In the pipe mode, it calls process_attr() which
still checks the attr for the dummy event. This commit fixed the issue by
skipping the attr check for the dummy event in the API evsel__check_attr,
Otherwise, we have to patch everywhere when evsel__check_attr() is called.

Before:

  #./perf record -o - --intr-regs=di,r8,dx,cx -e br_inst_retired.near_call:p -c 1000 --per-thread true 2>/dev/null|./perf script -F iregs |head -5
  Samples for 'dummy:HG' event do not have IREGS attribute set. Cannot print 'iregs' field.
  0x120 [0x90]: failed to process type: 64
  #

After:

  # ./perf record -o - --intr-regs=di,r8,dx,cx -e br_inst_retired.near_call:p -c 1000 --per-thread true 2>/dev/null|./perf script -F iregs |head -5
  ABI:2    CX:0x55b8efa87000    DX:0x55b8efa7e000    DI:0xffffba5e625efbb0    R8:0xffff90e51f8ae100
  ABI:2    CX:0x7f1dae1e4000    DX:0xd0    DI:0xffff90e18c675ac0    R8:0x71
  ABI:2    CX:0xcc0    DX:0x1    DI:0xffff90e199880240    R8:0x0
  ABI:2    CX:0xffff90e180dd7500    DX:0xffff90e180dd7500    DI:0xffff90e180043500    R8:0x1
  ABI:2    CX:0x50    DX:0xffff90e18c583bd0    DI:0xffff90e1998803c0    R8:0x58
  #

[1]https://lore.kernel.org/lkml/20220831124041.219925-1-jolsa@kernel.org/

Fixes: b91e5492f9d7ca89 ("perf record: Add a dummy event on hybrid systems to collect metadata records")
Suggested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220908070030.3455164-1-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>