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The H616 SoC resembles the H6 thermal sensor controller, with a few
changes like four sensors.
Extend sun50i_h6_ths_calibrate() function to support calibration of
these sensors.
Co-developed-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240219153639.179814-5-andre.przywara@arm.com
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So far we were ORing in some "unknown" value into the THS control
register on the Allwinner H6. This part of the register is not explained
in the H6 manual, but the H616 manual details those bits, and on closer
inspection the THS IP blocks in both SoCs seem very close:
- The BSP code for both SoCs writes the same values into THS_CTRL.
- The reset values of at least the first three registers are the same.
Replace the "unknown" value with its proper meaning: "acquire time",
most probably the sample part of the sample & hold circuit of the ADC,
according to its explanation in the H616 manual.
No functional change, just a macro rename and adjustment.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240219153639.179814-4-andre.przywara@arm.com
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This controller is similar to the H6, but covers four sensors and uses
slightly different calibration methods.
Also the H616 requires to poke a bit in the SYS_CFG register range for
correct operation, so add a phandle property to point there.
Signed-off-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240219153639.179814-3-andre.przywara@arm.com
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The Allwinner H616 SoC contains a mysterious bit at register offset 0x0
in the SRAM control block. If bit 16 is set (the reset value), the
temperature readings of the THS are way off, leading to reports about
200C, at normal ambient temperatures. Clearing this bits brings the
reported values down to the expected values.
The BSP code clears this bit in firmware (U-Boot), and has an explicit
comment about this, but offers no real explanation.
Experiments in U-Boot show that register 0x0 has no effect on the SRAM C
visibility: all tested bit settings still allow full read and write
access by the CPU to the whole of SRAM C. Only bit 24 of the register at
offset 0x4 makes all of SRAM C inaccessible by the CPU. So modelling
the THS switch functionality as an SRAM region would not reflect reality.
Since we should not rely on firmware settings, allow other code (the THS
driver) to access this register, by exporting it through the already
existing regmap. This mimics what we already do for the LDO control and
the EMAC register.
To avoid concurrent accesses to the same register at the same time, by
the SRAM switch code and the regmap code, use the same lock to protect
the access. The regmap subsystem allows to use an existing lock, so we
just need to hook in there.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240219153639.179814-2-andre.przywara@arm.com
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The number of fsl,tmu-range entries vary among the several NXP SoCs.
- lx2160a has two fsl,tmu-range entries (fsl,qoriq-tmu compatible)
- imx8mq has four fsl,tmu-range entries. (fsl,imx8mq-tmu compatible)
- imx93 has seven fsl,tmu-range entries. (fsl,qoriq-tmu compatible)
Change minItems and maxItems accordingly.
This fixes the following schema warning:
imx93-11x11-evk.dtb: tmu@44482000: fsl,tmu-range: 'oneOf' conditional failed, one must be fixed:
[2147483866, 2147483881, 2147483906, 2147483946, 2147484006, 2147484071, 2147484086] is too long
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240104124952.1975160-1-festevam@gmail.com
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There is never a need to have a space before a TAB, but it hurts the
eyes of vim users.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/480478a53fd42621e97b2db36e181903cc0f53e3.1708001426.git.geert+renesas@glider.be
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Reading thermal sensor on mt7986 devices returns invalid temperature:
bpi-r3 ~ # cat /sys/class/thermal/thermal_zone0/temp
-274000
Fix this by adding missing members in mtk_thermal_data struct which were
used in mtk_thermal_turn_on_buffer after commit 33140e668b10.
Cc: stable@vger.kernel.org
Fixes: 33140e668b10 ("thermal/drivers/mediatek: Control buffer enablement tweaks")
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>
Reviewed-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230907112018.52811-1-linux@fw-web.de
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handling path
If devm_krealloc() fails, then 'efuse' is leaking.
So free it to avoid a leak.
Fixes: f5f633b18234 ("thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/481d345233862d58c3c305855a93d0dbc2bbae7e.1706431063.git.christophe.jaillet@wanadoo.fr
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Merge thermal core changes and Intel thermal drivers changes for
6.9-rc1:
- Store zone trips table and zone operations directly in struct
thermal_zone_device (Rafael Wysocki).
- Rework writable trip points handling (Rafael Wysocki).
- Thermal core code cleanups (Dan Carpenter, Flavio Suligoi).
- Use thermal zone accessor functions in the int340x Intel thermal
driver (Rafael Wysocki).
- Add Lunar Lake-M PCI ID to the int340x Intel thermal driver (Srinivas
Pandruvada).
* thermal-core:
thermal: core: remove unnecessary check in trip_point_hyst_store()
thermal: core: Remove excess empty line from a comment
thermal: core: Eliminate writable trip points masks
thermal: of: Set THERMAL_TRIP_FLAG_RW_TEMP directly
thermal: imx: Set THERMAL_TRIP_FLAG_RW_TEMP directly
wifi: iwlwifi: mvm: Set THERMAL_TRIP_FLAG_RW_TEMP directly
mlxsw: core_thermal: Set THERMAL_TRIP_FLAG_RW_TEMP directly
thermal: intel: Set THERMAL_TRIP_FLAG_RW_TEMP directly
thermal: core: Drop the .set_trip_hyst() thermal zone operation
thermal: core: Add flags to struct thermal_trip
thermal: core: Move initial num_trips assignment before memcpy()
thermal: Get rid of CONFIG_THERMAL_WRITABLE_TRIPS
thermal: intel: Adjust ops handling during thermal zone registration
thermal: ACPI: Constify acpi_thermal_zone_ops
thermal: core: Store zone ops in struct thermal_zone_device
thermal: intel: Discard trip tables after zone registration
thermal: ACPI: Discard trips table after zone registration
thermal: core: Store zone trips table in struct thermal_zone_device
* thermal-intel:
thermal: intel: int340x_thermal: Use thermal zone accessor functions
thermal: int340x: processor_thermal: Add Lunar Lake-M PCI ID
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This code was shuffled around a bit recently. We no longer need to
check the value of "ret" because we know it's zero.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Make int340x_thermal use the dedicated accessor functions for the
thermal zone device object address and the thermal zone type string.
This is requisite for future thermal core improvements.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
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The first and the third lines of the kerneldoc comment for:
thermal_zone_device_set_polling()
belong to the same sentences, so join them together.
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add Lunar Lake-M PCI ID for processor thermal device.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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All of the thermal_zone_device_register_with_trips() callers pass zero
writable trip points masks to it, so drop the mask argument from that
function and update all of its callers accordingly.
This also removes the artificial trip points per zone limit of 32,
related to using writable trip points masks.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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It is now possible to flag trip points with THERMAL_TRIP_FLAG_RW_TEMP
to allow their temperature to be set from user space via sysfs instead
of using a nonzero writable trips mask during thermal zone registration,
so make the OF thermal code do that.
No intentional functional impact.
Note that this change is requisite for dropping the mask argument from
thermal_zone_device_register_with_trips() going forward.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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It is now possible to flag trip points with THERMAL_TRIP_FLAG_RW_TEMP
to allow their temperature to be set from user space via sysfs instead
of using a nonzero writable trips mask during thermal zone registration,
so make the imx thermal code do that.
No intentional functional impact.
Note that this change is requisite for dropping the mask argument from
thermal_zone_device_register_with_trips() going forward.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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It is now possible to flag trip points with THERMAL_TRIP_FLAG_RW_TEMP
to allow their temperature to be set from user space via sysfs instead
of using a nonzero writable trips mask during thermal zone registration,
so make the iwlwifi code do that.
No intentional functional impact.
Note that this change is requisite for dropping the mask argument from
thermal_zone_device_register_with_trips() going forward.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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It is now possible to flag trip points with THERMAL_TRIP_FLAG_RW_TEMP
to allow their temperature to be set from user space via sysfs instead
of using a nonzero writable trips mask during thermal zone registration,
so make the mlxsw code do that.
No intentional functional impact.
Note that this change is requisite for dropping the mask argument from
thermal_zone_device_register_with_trips() going forward.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Some Intel thermal drivers need/want the temperature of their trip
points to be set by user space via sysfs and so they pass nonzero
writable trip masks during thermal zone registration for this purpose.
It is now possible to achieve the same result by setting the
THERMAL_TRIP_FLAG_RW_TEMP trip flag directly, so modify the drivers
in question to do that instead of using a nonzero writable trips mask.
No intentional functional impact.
Note that this change is requisite for dropping the mask argument from
thermal_zone_device_register_with_trips() going forward.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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None of the users of the thermal core provides a .set_trip_hyst()
thermal zone operation, so drop that callback from struct
thermal_zone_device_ops and update trip_point_hyst_store()
accordingly.
No functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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In order to allow thermal zone creators to specify the writability of
trip point temperature and hysteresis on a per-trip basis, add a flags
field to struct thermal_trip and define flags to represent the desired
trip properties.
Also make thermal_zone_device_register_with_trips() set the
THERMAL_TRIP_FLAG_RW_TEMP flag for all trips covered by the writable
trips mask passed to it and modify the thermal sysfs code to look at
the trip flags instead of using the writable trips mask directly or
checking the presence of the .set_trip_hyst() zone callback.
Additionally, make trip_point_temp_store() and trip_point_hyst_store()
fail with an error code if the trip passed to one of them has
THERMAL_TRIP_FLAG_RW_TEMP or THERMAL_TRIP_FLAG_RW_HYST,
respectively, clear in its flags.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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When booting a CONFIG_FORTIFY_SOURCE=y kernel compiled with a toolchain
that supports __counted_by() (such as clang-18 and newer), there is a
panic on boot:
[ 2.913770] memcpy: detected buffer overflow: 72 byte write of buffer size 0
[ 2.920834] WARNING: CPU: 2 PID: 1 at lib/string_helpers.c:1027 __fortify_report+0x5c/0x74
...
[ 3.039208] Call trace:
[ 3.041643] __fortify_report+0x5c/0x74
[ 3.045469] __fortify_panic+0x18/0x20
[ 3.049209] thermal_zone_device_register_with_trips+0x4c8/0x4f8
This panic occurs because trips is counted by num_trips but num_trips is
assigned after the call to memcpy(), so the fortify checks think the
buffer size is zero because tz was allocated with kzalloc().
Move the num_trips assignment before the memcpy() to resolve the panic
and ensure that the fortify checks work properly.
Fixes: 9b0a62758665 ("thermal: core: Store zone trips table in struct thermal_zone_device")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The only difference made by CONFIG_THERMAL_WRITABLE_TRIPS is whether or
not the writable trips mask passed during thermal zone registration
will take any effect, but whoever passes a non-zero writable trips mask
to thermal_zone_device_register_with_trips() can be forgiven thinking
that it will always work.
Moreover, some thermal drivers expect user space to set trip temperature
values, so they select CONFIG_THERMAL_WRITABLE_TRIPS, possibly overriding
a manual choice to unset it and going against the design purportedly
allowing system integrators to decide on the writability of trip points
for the given kernel build. It is also set in one platform's defconfig.
Forthermore, CONFIG_THERMAL_WRITABLE_TRIPS only affects trip temperature,
because trip hysteresis is writable as long as the thermal zone provides
a callback to update it, regardless of the CONFIG_THERMAL_WRITABLE_TRIPS
value.
The above means that the symbol in question is used inconsistently and
its purpose is at least moot, so remove it and always take the writable
trip mask passed to thermal_zone_device_register_with_trips() into
account.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Because thermal zone operations are now stored directly in struct
thermal_zone_device, thermal zone creators can discard the operations
structure after the zone registration is complete, or it can be made
read-only.
Accordingly, make int340x_thermal_zone_add() use a local variable to
represent thermal zone operations, so it is freed automatically upon the
function exit, and make the other Intel thermal drivers use const zone
operations structures.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Because thermal zone operations are now stored directly in struct
thermal_zone_device, acpi_thermal_zone_ops need not be modified by
the thermal core and so it can be const.
Adjust the code accordingly.
No functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The current code requires thermal zone creators to pass pointers to
writable ops structures to thermal_zone_device_register_with_trips()
which needs to modify the target struct thermal_zone_device_ops object
if the "critical" operation in it is NULL.
Moreover, the callers of thermal_zone_device_register_with_trips() are
required to hold on to the struct thermal_zone_device_ops object passed
to it until the given thermal zone is unregistered.
Both of these requirements are quite inconvenient, so modify struct
thermal_zone_device to contain struct thermal_zone_device_ops as field and
make thermal_zone_device_register_with_trips() copy the contents of the
struct thermal_zone_device_ops passed to it via a pointer (which can be
const now) to that field.
Also adjust the code using thermal zone ops accordingly and modify
thermal_of_zone_register() to use a local ops variable during
thermal zone registration so ops do not need to be freed in
thermal_of_zone_unregister() any more.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Because the thermal core creates and uses its own copy of the trips
table passed to thermal_zone_device_register_with_trips(), it is not
necessary to hold on to a local copy of it any more after the given
thermal zone has been registered.
Accordingly, modify Intel thermal drivers to discard the trips tables
passed to thermal_zone_device_register_with_trips() after thermal zone
registration, for example by storing them in local variables which are
automatically discarded when the zone registration is complete.
Also make some additional code simplifications unlocked by the above
changes.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Because the thermal core creates and uses its own copy of the trips
table passed to thermal_zone_device_register_with_trips(), it is not
necessary to hold on to a local copy of it any more after the given
thermal zone has been registered.
Accordingly, modify the ACPI thermal driver to store the trips table
passed to thermal_zone_device_register_with_trips() in a local variable
which is automatically discarded when acpi_thermal_add() returns to
its caller.
Also make some additional code simplifications unlocked by the above
change.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The current code expects thermal zone creators to pass a pointer to a
writable trips table to thermal_zone_device_register_with_trips() and
that trips table is then used by the thermal core going forward.
Consequently, the callers of thermal_zone_device_register_with_trips()
are required to hold on to the trips table passed to it until the given
thermal zone is unregistered, at which point the trips table can be
freed, but at the same time they are not expected to access that table
directly. This is both error prone and confusing.
To address it, turn the trips table pointer in struct thermal_zone_device
into a flex array (counted by its num_trips field), allocate it during
thermal zone device allocation and copy the contents of the trips table
supplied by the zone creator (which can be const now) into it, which
will allow the callers of thermal_zone_device_register_with_trips() to
drop their trip tables right after the zone registration.
This requires the imx thermal driver to be adjusted to store the new
temperature in its internal trips table in imx_set_trip_temp(), because
it will be separate from the core's trips table now and it has to be
explicitly kept in sync with the latter.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Merge thermal core changes for 6.9:
- Minor fixes for thermal governors (Rafael J. Wysocki, Di Shen).
- Trip point handling fixes for the iwlwifi wireless driver (Rafael J.
Wysocki).
- Code cleanups (Rafael J. Wysocki, AngeloGioacchino Del Regno).
* thermal-tmp:
thermal: gov_power_allocator: Avoid overwriting PID coefficients from setup time
thermal: sysfs: Fix up white space in trip_point_temp_store()
iwlwifi: mvm: Use for_each_thermal_trip() for walking trip points
iwlwifi: mvm: Populate trip table before registering thermal zone
iwlwifi: mvm: Drop unused fw_trips_index[] from iwl_mvm_thermal_device
thermal: core: Change governor name to const char pointer
thermal: gov_bang_bang: Fix possible cooling device state ping-pong
thermal: gov_fair_share: Fix dependency on trip points ordering
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CPU temperature can be negative in some cases. Thus the negative CPU
temperature should not be considered as a failure.
Fix intel_tcc_get_temp() and its users to support negative CPU
temperature.
Fixes: a3c1f066e1c5 ("thermal/intel: Introduce Intel TCC library")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Cc: 6.3+ <stable@vger.kernel.org> # 6.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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When the PID coefficients k_* are set via sysfs before the IPA
algorithm is triggered then the coefficients would be overwritten after
IPA throttle() is called. The old configuration values might be
different than the new values estimated by the IPA internal algorithm.
There might be a time delay when this overwriting happens. It
depends on the thermal zone temperature value. The temperature value
needs to cross the first trip point value then IPA algorithms start
operating. Although, the PID coefficients setup time should not be
affected or linked to any later operating phase and values must not be
overwritten.
This patch initializes params->sustainable_power when the governor
binds to thermal zone to avoid overwriting k_*. The basic function won't
be affected, as the k_* still can be estimated if the sustainable_power
is modified.
Signed-off-by: Di Shen <di.shen@unisoc.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Remove an excess tab character from an otherwise empty code line.
No functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Borislav Petkov:
- Make sure a warning is issued when a hrtimer gets queued after the
timers have been migrated on the CPU down path and thus said timer
will get ignored
* tag 'timers_urgent_for_v6.8_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hrtimer: Report offline hrtimer enqueue
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Correct the minimum CPU family for Transmeta Crusoe in Kconfig so
that such hw can boot again
- Do not take into accout XSTATE buffer size info supplied by userspace
when constructing a sigreturn frame
- Switch get_/put_user* to EX_TYPE_UACCESS exception handling when an
MCE is encountered so that it can be properly recovered from instead
of simply panicking
* tag 'x86_urgent_for_v6.8_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/Kconfig: Transmeta Crusoe is CPU family 5, not 6
x86/fpu: Stop relying on userspace for info to fault in xsave buffer
x86/lib: Revert to _ASM_EXTABLE_UA() for {get,put}_user() fixups
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"21 hotfixes. 12 are cc:stable and the remainder pertain to post-6.7
issues or aren't considered to be needed in earlier kernel versions"
* tag 'mm-hotfixes-stable-2024-02-10-11-16' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (21 commits)
nilfs2: fix potential bug in end_buffer_async_write
mm/damon/sysfs-schemes: fix wrong DAMOS tried regions update timeout setup
nilfs2: fix hang in nilfs_lookup_dirty_data_buffers()
MAINTAINERS: Leo Yan has moved
mm/zswap: don't return LRU_SKIP if we have dropped lru lock
fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super
mailmap: switch email address for John Moon
mm: zswap: fix objcg use-after-free in entry destruction
mm/madvise: don't forget to leave lazy MMU mode in madvise_cold_or_pageout_pte_range()
arch/arm/mm: fix major fault accounting when retrying under per-VMA lock
selftests: core: include linux/close_range.h for CLOSE_RANGE_* macros
mm/memory-failure: fix crash in split_huge_page_to_list from soft_offline_page
mm: memcg: optimize parent iteration in memcg_rstat_updated()
nilfs2: fix data corruption in dsync block recovery for small block sizes
mm/userfaultfd: UFFDIO_MOVE implementation should use ptep_get()
exit: wait_task_zombie: kill the no longer necessary spin_lock_irq(siglock)
fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats
fs/proc: do_task_stat: move thread_group_cputime_adjusted() outside of lock_task_sighand()
getrusage: use sig->stats_lock rather than lock_task_sighand()
getrusage: move thread_group_cputime_adjusted() outside of lock_task_sighand()
...
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Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- Update a potentially stale firmware attribute (Maurizio)
- Fixes for the recent verbose error logging (Keith, Chaitanya)
- Protection information payload size fix for passthrough (Francis)
- Fix for a queue freezing issue in virtblk (Yi)
- blk-iocost underflow fix (Tejun)
- blk-wbt task detection fix (Jan)
* tag 'block-6.8-2024-02-10' of git://git.kernel.dk/linux:
virtio-blk: Ensure no requests in virtqueues before deleting vqs.
blk-iocost: Fix an UBSAN shift-out-of-bounds warning
nvme: use ns->head->pi_size instead of t10_pi_tuple structure size
nvme-core: fix comment to reflect right functions
nvme: move passthrough logging attribute to head
blk-wbt: Fix detection of dirty-throttled tasks
nvme-host: fix the updating of the firmware version
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Takashi Sakamoto:
"A change to accelerate the device detection step in some cases.
In the self-identification step after bus-reset, all nodes in the same
bus broadcast selfID packet including the value of gap count. The
value is related to the cable hops between nodes, and used to
calculate the subaction gap and the arbitration reset gap.
When each node has the different value of the gap count, the
asynchronous communication between them is unreliable, since an
asynchronous transaction could be interrupted by another asynchronous
transaction before completion. The gap count inconsistency can be
resolved by several ways; e.g. the transfer of PHY configuration
packet and generation of bus-reset.
The current implementation of firewire stack can correctly detect the
gap count inconsistency, however the recovery action from the
inconsistency tends to be delayed after reading configuration ROM of
root node. This results in the long time to probe devices in some
combinations of hardware.
Here the stack is changed to schedule the action as soon as possible"
* tag 'firewire-fixes-6.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: core: send bus reset promptly on gap count error
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Pull smb server fixes from Steve French:
"Two ksmbd server fixes:
- memory leak fix
- a minor kernel-doc fix"
* tag '6.8-rc3-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: free aux buffer if ksmbd_iov_pin_rsp_read fails
ksmbd: Add kernel-doc for ksmbd_extract_sharename() function
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three small driver fixes and one core fix.
The core fix being a fixup to the one in the last pull request which
didn't entirely move checking of scsi_host_busy() out from under the
host lock"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Remove the ufshcd_release() in ufshcd_err_handling_prepare()
scsi: ufs: core: Fix shift issue in ufshcd_clear_cmd()
scsi: lpfc: Use unsigned type for num_sge
scsi: core: Move scsi_host_busy() out of host lock if it is for per-command
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Pull smb client fixes from Steve French:
- reconnect fix
- multichannel channel selection fix
- minor mount warning fix
- reparse point fix
- null pointer check improvement
* tag '6.8-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb3: clarify mount warning
cifs: handle cases where multiple sessions share connection
cifs: change tcon status when need_reconnect is set on it
smb: client: set correct d_type for reparse points under DFS mounts
smb3: add missing null server pointer check
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Pull ceph fixes from Ilya Dryomov:
"Some fscrypt-related fixups (sparse reads are used only for encrypted
files) and two cap handling fixes from Xiubo and Rishabh"
* tag 'ceph-for-6.8-rc4' of https://github.com/ceph/ceph-client:
ceph: always check dir caps asynchronously
ceph: prevent use-after-free in encode_cap_msg()
ceph: always set initial i_blkbits to CEPH_FSCRYPT_BLOCK_SHIFT
libceph: just wait for more data to be available on the socket
libceph: rename read_sparse_msg_*() to read_partial_sparse_msg_*()
libceph: fail sparse-read if the data length doesn't match
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https://github.com/Paragon-Software-Group/linux-ntfs3
Pull ntfs3 fixes from Konstantin Komarov:
"Fixed:
- size update for compressed file
- some logic errors, overflows
- memory leak
- some code was refactored
Added:
- implement super_operations::shutdown
Improved:
- alternative boot processing
- reduced stack usage"
* tag 'ntfs3_for_6.8' of https://github.com/Paragon-Software-Group/linux-ntfs3: (28 commits)
fs/ntfs3: Slightly simplify ntfs_inode_printk()
fs/ntfs3: Add ioctl operation for directories (FITRIM)
fs/ntfs3: Fix oob in ntfs_listxattr
fs/ntfs3: Fix an NULL dereference bug
fs/ntfs3: Update inode->i_size after success write into compressed file
fs/ntfs3: Fixed overflow check in mi_enum_attr()
fs/ntfs3: Correct function is_rst_area_valid
fs/ntfs3: Use i_size_read and i_size_write
fs/ntfs3: Prevent generic message "attempt to access beyond end of device"
fs/ntfs3: use non-movable memory for ntfs3 MFT buffer cache
fs/ntfs3: Use kvfree to free memory allocated by kvmalloc
fs/ntfs3: Disable ATTR_LIST_ENTRY size check
fs/ntfs3: Fix c/mtime typo
fs/ntfs3: Add NULL ptr dereference checking at the end of attr_allocate_frame()
fs/ntfs3: Add and fix comments
fs/ntfs3: ntfs3_forced_shutdown use int instead of bool
fs/ntfs3: Implement super_operations::shutdown
fs/ntfs3: Drop suid and sgid bits as a part of fpunch
fs/ntfs3: Add file_modified
fs/ntfs3: Correct use bh_read
...
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We've had issues with gcc and 'asm goto' before, and we created a
'asm_volatile_goto()' macro for that in the past: see commits
3f0116c3238a ("compiler/gcc4: Add quirk for 'asm goto' miscompilation
bug") and a9f180345f53 ("compiler/gcc4: Make quirk for
asm_volatile_goto() unconditional").
Then, much later, we ended up removing the workaround in commit
43c249ea0b1e ("compiler-gcc.h: remove ancient workaround for gcc PR
58670") because we no longer supported building the kernel with the
affected gcc versions, but we left the macro uses around.
Now, Sean Christopherson reports a new version of a very similar
problem, which is fixed by re-applying that ancient workaround. But the
problem in question is limited to only the 'asm goto with outputs'
cases, so instead of re-introducing the old workaround as-is, let's
rename and limit the workaround to just that much less common case.
It looks like there are at least two separate issues that all hit in
this area:
(a) some versions of gcc don't mark the asm goto as 'volatile' when it
has outputs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98619
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110420
which is easy to work around by just adding the 'volatile' by hand.
(b) Internal compiler errors:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110422
which are worked around by adding the extra empty 'asm' as a
barrier, as in the original workaround.
but the problem Sean sees may be a third thing since it involves bad
code generation (not an ICE) even with the manually added 'volatile'.
but the same old workaround works for this case, even if this feels a
bit like voodoo programming and may only be hiding the issue.
Reported-and-tested-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/all/20240208220604.140859-1-seanjc@google.com/
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Uros Bizjak <ubizjak@gmail.com>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: Andrew Pinski <quic_apinski@quicinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When a user tries to use the "sec=krb5p" mount parameter to encrypt
data on connection to a server (when authenticating with Kerberos), we
indicate that it is not supported, but do not note the equivalent
recommended mount parameter ("sec=krb5,seal") which turns on encryption
for that mount (and uses Kerberos for auth). Update the warning message.
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Based on our implementation of multichannel, it is entirely
possible that a server struct may not be found in any channel
of an SMB session.
In such cases, we should be prepared to move on and search for
the server struct in the next session.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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When a tcon is marked for need_reconnect, the intention
is to have it reconnected.
This change adjusts tcon->status in cifs_tree_connect
when need_reconnect is set. Also, this change has a minor
correction in resetting need_reconnect on success. It makes
sure that it is done with tc_lock held.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- fix missing TLB flush during early boot on SPARSEMEM_VMEMMAP
configurations
- fixes to correctly implement the break-before-make behavior requried
by the ISA for NAPOT mappings
- fix a missing TLB flush on intermediate mapping changes
- fix build warning about a missing declaration of overflow_stack
- fix performace regression related to incorrect tracking of completed
batch TLB flushes
* tag 'riscv-for-linus-6.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix arch_tlbbatch_flush() by clearing the batch cpumask
riscv: declare overflow_stack as exported from traps.c
riscv: Fix arch_hugetlb_migration_supported() for NAPOT
riscv: Flush the tlb when a page directory is freed
riscv: Fix hugetlb_mask_last_page() when NAPOT is enabled
riscv: Fix set_huge_pte_at() for NAPOT mapping
riscv: mm: execute local TLB flush after populating vmemmap
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