Commit 0015d9a2a7 ("thermal/governors: Prefix all source files with
gov_") renamed power_allocator.c to gov_power_allocator.c in
./drivers/thermal amongst some other file renames, but missed to adjust
the MAINTAINERS entry.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains:
warning: no file matches F: drivers/thermal/power_allocator.c
Update the file entry in MAINTAINERS to the new file name.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200728045850.22661-1-lukas.bulwahn@gmail.com
Now the calls to enable/disable a thermal zone are centralized in a
call to a function, we can add in these the corresponding netlink
notifications.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/20200727231033.26512-1-daniel.lezcano@linaro.org
The TSENS integrated on MSM8939 is a v0_1 device with 10 sensors.
Different from its predecessor MSM8916, where 'calib_sel' bits sit in
separate qfprom word, MSM8939 has 'cailb' and 'calib_sel' bits mixed and
spread on discrete offsets. That's why all qfprom bits are read as one
go and later mapped to calibration data for MSM8939.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Amit Kucheria <amit.kucheria@linaro.org>
Tested-by: Konrad Dybcio <konradybcio@gmail.com> /* on Asus Z00T smartphone */
Acked-by: Konrad Dybcio <konradybcio@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629144926.665-3-shawn.guo@linaro.org
It adds compatible for MSM8939 TSENS device.
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Konrad Dybcio <konradybcio@gmail.com> /* on Asus Z00T smartphone */
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629144926.665-2-shawn.guo@linaro.org
When a thermal zone is looked up by an ID and no zone is found matching
that ID, the thermal_zone_get_by_id() function will return a pointer to
the thermal zone list head which isn't actually a valid thermal zone.
This can lead to a subsequent crash because a valid pointer is returned
to the called, but dereferencing that pointer as struct thermal_zone is
not safe.
Fixes: 329b064fbd ("thermal: core: Get thermal zone by id")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200724170105.2705467-1-thierry.reding@gmail.com
Update PCI device id for Jasper Lake processor thermal device.
With this proc_thermal driver is getting loaded and processor
thermal functionality works on Jasper Lake system.
Fixes: f64a6583d3 ("thermal: int340x: processor_thermal: Add Jasper Lake support")
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1595577146-1221-1-git-send-email-sumeet.r.pawnikar@intel.com
This condition is reversed and will cause breakage.
Fixes: 7440f518da ("thermal/drivers/ti-soc-thermal: Avoid dereferencing ERR_PTR")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200616091949.GA11940@mwanda
The function rcar_gen3_thermal_calc_coefs() takes an argument called
'thcode' which shadows the static global 'thcode' variable. This is not
harmful but bad for readability and is harmful for planned changes to
the driver. The THCODE values should be read from hardware fuses if they
are available and only fallback to the global 'thcode' variable if they
are not fused.
Rename the global 'thcode' variable to 'thcodes' to avoid shadowing the
symbol in functions that take it as an argument.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200610003300.884258-1-niklas.soderlund+renesas@ragnatech.se
Now that we have yaml bindings for the thermal subsystem, get rid of the
old bindings (thermal.txt).
Replace all references to thermal.txt in the Documentation with a link
to the appropriate YAML bindings using the following search and replace
pattern:
- If the reference is specific to the thermal-sensor-cells property,
replace with a pointer to thermal-sensor.yaml
- If the reference is to the cooling-cells property, replace with a
pointer to thermal-cooling-devices.yaml
- If the reference is generic thermal bindings, replace with a
reference to thermal*.yaml.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/e9aacd33071a00568b67e110fa3bcc4d86d3e1e4.1595245166.git.amit.kucheria@linaro.org
The generic netlink is initialized at subsys_initcall, so far after
the thermal init routine and the thermal generic netlink family
initialization.
On ŝome platforms, that leads to a memory corruption.
The fix was sent to netdev@ to move the genetlink framework
initialization at core_initcall.
Move the thermal core initialization to postcore level which is very
close to core level.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/20200717164217.18819-2-daniel.lezcano@linaro.org
The initcalls like to play joke. In our case, the thermal-netlink
initcall is called after the thermal-core initcall but this one sends
a notification before the former is initialized. No issue was spotted,
but it could lead to a memory corruption, so instead of relying on the
core_initcall for the thermal-netlink, let's initialize directly from
the thermal-core init routine, so we have full control of the init
ordering.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/20200717164217.18819-1-daniel.lezcano@linaro.org
The generic netlink is initialized far after the netlink protocol
itself at subsys_initcall. The devlink is initialized at the same
level, but after, as shown by a disassembly of the vmlinux:
[ ... ]
374 ffff8000115f22c0 <__initcall_devlink_init4>:
375 ffff8000115f22c4 <__initcall_genl_init4>:
[ ... ]
The function devlink_init() calls genl_register_family() before the
generic netlink subsystem is initialized.
As the generic netlink initcall level is set since 2005, it seems that
was not a problem, but now we have the thermal framework initialized
at the core_initcall level which creates the generic netlink family
and sends a notification which leads to a subtle memory corruption
only detectable when the CONFIG_INIT_ON_ALLOC_DEFAULT_ON option is set
with the earlycon at init time.
The thermal framework needs to be initialized early in order to begin
the mitigation as soon as possible. Moving it to postcore_initcall is
acceptable.
This patch changes the initialization level for the generic netlink
family to the core_initcall and comes after the netlink protocol
initialization.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/20200715074120.8768-1-daniel.lezcano@linaro.org
The variable ret is being initialized with a value that is never read
and it is being updated later with a new value. The initialization is
redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200706140747.489075-1-colin.king@canonical.com
When the network is not configured, the netlink is disabled on all
the system. The thermal framework assumed the netlink is always
opt-in.
Fix this by adding a Kconfig option for the netlink notification,
defaulting to yes and depending on CONFIG_NET.
As the change implies multiple stubs and in order to not pollute the
internal thermal header, the thermal_nelink.h has been added and
included in the thermal_core.h, so this one regain some kind of
clarity.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/20200707090159.1018-1-daniel.lezcano@linaro.org
The generic netlink protocol is implemented but the different
notification functions are not yet connected to the core code.
These changes add the notification calls in the different
corresponding places.
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20200706105538.2159-4-daniel.lezcano@linaro.org
Initially the thermal framework had a very simple notification
mechanism to send generic netlink messages to the userspace.
The notification function was never called from anywhere and the
corresponding dead code was removed. It was probably a first attempt
to introduce the netlink notification.
At LPC2018, the presentation "Linux thermal: User kernel interface",
proposed to create the notifications to the userspace via a kfifo.
The advantage of the kfifo is the performance. It is usually used from
a 1:1 communication channel where a driver captures data and sends it
as fast as possible to a userspace process.
The drawback is that only one process uses the notification channel
exclusively, thus no other process is allowed to use the channel to
get temperature or notifications.
This patch defines a generic netlink API to discover the current
thermal setup and adds event notifications as well as temperature
sampling. As any genetlink protocol, it can evolve and the versioning
allows to keep the backward compatibility.
In order to prevent the user from getting flooded with data on a
single channel, there are two multicast channels, one for the
temperature sampling when the thermal zone is updated and another one
for the events, so the user can get the events only without the
thermal zone temperature sampling.
Also, a list of commands to discover the thermal setup is added and
can be extended when needed.
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20200706105538.2159-3-daniel.lezcano@linaro.org
The next patch will introduce the generic netlink protocol to handle
events, sampling and command from the thermal framework. In order to
deal with the thermal zone, it uses its unique identifier to
characterize it in the message. Passing an integer is more efficient
than passing an entire string.
This change provides a function returning back a thermal zone pointer
corresponding to the identifier passed as parameter.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20200706105538.2159-2-daniel.lezcano@linaro.org
The cdev, tz and governor list, as well as their respective locks are
statically defined in the thermal_core.c file.
In order to give a sane access to these list, like browsing all the
thermal zones or all the cooling devices, let's define a set of
helpers where we pass a callback as a parameter to be called for each
thermal entity.
We keep the self-encapsulation and ensure the locks are correctly
taken when looking at the list.
Acked-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200706105538.2159-1-daniel.lezcano@linaro.org
thermal_zone_device_update() can now handle disabled thermal zones, so
the check here is not needed.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200703104354.19657-2-andrzej.p@collabora.com
set_mode() is only called when tzd's mode is about to change. Actual
setting is performed in thermal_core, in thermal_zone_device_set_mode().
The meaning of set_mode() callback is actually to notify the driver about
the mode being changed and giving the driver a chance to oppose such
change.
To better reflect the purpose of the method rename it to change_mode()
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
[for acerhdf]
Acked-by: Peter Kaestle <peter@piie.net>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-12-andrzej.p@collabora.com
Setting polling_delay is now done at thermal_core level (by not polling
DISABLED devices), so no need to repeat this code.
int340x: Checking for an impossible enum value is unnecessary.
acpi/thermal: It only prints debug messages.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
[for acerhdf]
Acked-by: Peter Kaestle <peter@piie.net>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-11-andrzej.p@collabora.com
Polling DISABLED devices is not desired, as all such "disabled" devices
are meant to be handled by userspace. This patch introduces and uses
should_stop_polling() to decide whether the device should be polled or not.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-10-andrzej.p@collabora.com
Some thermal zone devices never change their state, so they should be
always enabled.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-9-andrzej.p@collabora.com
Use thermal_zone_device_{en|dis}able() and thermal_zone_device_is_enabled().
Consequently, all set_mode() implementations in drivers:
- can stop modifying tzd's "mode" member,
- shall stop taking tzd's lock, as it is taken in the helpers
- shall stop calling thermal_zone_device_update() as it is called in the
helpers
- can assume they are called when the mode truly changes, so checks to
verify that can be dropped
Not providing set_mode() by a driver no longer prevents the core from
being able to set tzd's mode, so the relevant check in mode_store() is
removed.
Other comments:
- acpi/thermal.c: tz->thermal_zone->mode will be updated only after we
return from set_mode(), so use function parameter in thermal_set_mode()
instead, no need to call acpi_thermal_check() in set_mode()
- thermal/imx_thermal.c: regmap writes and mode assignment are done in
thermal_zone_device_{en|dis}able() and set_mode() callback
- thermal/intel/intel_quark_dts_thermal.c: soc_dts_{en|dis}able() are a
part of set_mode() callback, so they don't need to modify tzd->mode, and
don't need to fall back to the opposite mode if unsuccessful, as the return
value will be propagated to thermal_zone_device_{en|dis}able() and
ultimately tzd's member will not be changed in thermal_zone_device_set_mode().
- thermal/of-thermal.c: no need to set zone->mode to DISABLED in
of_parse_thermal_zones() as a tzd is kzalloc'ed so mode is DISABLED anyway
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
[for acerhdf]
Acked-by: Peter Kaestle <peter@piie.net>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-8-andrzej.p@collabora.com
Prepare for making the drivers not access tzd's private members.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[staticize thermal_zone_device_set_mode()]
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-7-andrzej.p@collabora.com
get_mode() is now redundant, as the state is stored in struct
thermal_zone_device.
Consequently the "mode" attribute in sysfs can always be visible, because
it is always possible to get the mode from struct tzd.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
[for acerhdf]
Acked-by: Peter Kaestle <peter@piie.net>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-6-andrzej.p@collabora.com
Prepare for changing the place where the mode is stored: now it is in
drivers, which might or might not implement get_mode()/set_mode() methods.
A lot of cleanup can be done thanks to storing it in struct tzd. The
get_mode() methods will become redundant.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-4-andrzej.p@collabora.com
The acpi_thermal_register_thermal_zone() is missing any error handling.
This needs to be fixed.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-2-andrzej.p@collabora.com
The OMAP developers are particularly active at hunting down regressions,
so this is a separate branch with OMAP specific fixes for the v5.8:
As Tony explains
"The recent display subsystem (DSS) related platform data changes
caused display related regressions for suspend and resume. Looks like
I only tested suspend and resume before dropping the legacy platform
data, and forgot to test it after dropping it. Turns out the main issue
was that we no longer have platform code calling pm_runtime_suspend
for DSS like we did for the legacy platform data case, and that fix
is still being discussed on the dri-devel list and will get merged
separately. The DSS related testing exposed a pile other other display
related issues that also need fixing though":
- Fix ti-sysc optional clock handling and reset status checks
for devices that reset automatically in idle like DSS
- Ignore ti-sysc clockactivity bit unless separately requested
to avoid unexpected performance issues
- Init ti-sysc framedonetv_irq to true and disable for am4
- Avoid duplicate DSS reset for legacy mode with dts data
- Remove LCD timings for am4 as they cause warnings now that we're
using generic panels
Other OMAP changes from Tony include:
- Fix omap_prm reset deassert as we still have drivers setting the
pm_runtime_irq_safe() flag
- Flush posted write for ti-sysc enable and disable
- Fix droid4 spi related errors with spi flags
- Fix am335x USB range and a typo for softreset
- Fix dra7 timer nodes for clocks for IPU and DSP
- Drop duplicate mailboxes after mismerge for dra7
- Prevent pocketgeagle header line signal from accidentally setting
micro-SD write protection signal by removing the default mux
- Fix NFSroot flakeyness after resume for duover by switching the
smsc911x gpio interrupt to back to level sensitive
- Fix regression for omap4 clockevent source after recent system
timer changes
- Yet another ethernet regression fix for the "rgmii" vs "rgmii-rxid"
phy-mode
- One patch to convert am3/am4 DT files to use the regular sdhci-omap
driver instead of the old hsmmc driver, this was meant for the
merge window but got lost in the process.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----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=FFTv
-----END PGP SIGNATURE-----
Merge tag 'arm-omap-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM OMAP fixes from Arnd Bergmann:
"The OMAP developers are particularly active at hunting down
regressions, so this is a separate branch with OMAP specific
fixes for v5.8:
As Tony explains
"The recent display subsystem (DSS) related platform data changes
caused display related regressions for suspend and resume. Looks
like I only tested suspend and resume before dropping the legacy
platform data, and forgot to test it after dropping it. Turns out
the main issue was that we no longer have platform code calling
pm_runtime_suspend for DSS like we did for the legacy platform data
case, and that fix is still being discussed on the dri-devel list
and will get merged separately. The DSS related testing exposed a
pile other other display related issues that also need fixing
though":
- Fix ti-sysc optional clock handling and reset status checks for
devices that reset automatically in idle like DSS
- Ignore ti-sysc clockactivity bit unless separately requested to
avoid unexpected performance issues
- Init ti-sysc framedonetv_irq to true and disable for am4
- Avoid duplicate DSS reset for legacy mode with dts data
- Remove LCD timings for am4 as they cause warnings now that we're
using generic panels
Other OMAP changes from Tony include:
- Fix omap_prm reset deassert as we still have drivers setting the
pm_runtime_irq_safe() flag
- Flush posted write for ti-sysc enable and disable
- Fix droid4 spi related errors with spi flags
- Fix am335x USB range and a typo for softreset
- Fix dra7 timer nodes for clocks for IPU and DSP
- Drop duplicate mailboxes after mismerge for dra7
- Prevent pocketgeagle header line signal from accidentally setting
micro-SD write protection signal by removing the default mux
- Fix NFSroot flakeyness after resume for duover by switching the
smsc911x gpio interrupt to back to level sensitive
- Fix regression for omap4 clockevent source after recent system
timer changes
- Yet another ethernet regression fix for the "rgmii" vs "rgmii-rxid"
phy-mode
- One patch to convert am3/am4 DT files to use the regular sdhci-omap
driver instead of the old hsmmc driver, this was meant for the
merge window but got lost in the process"
* tag 'arm-omap-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (21 commits)
ARM: dts: am5729: beaglebone-ai: fix rgmii phy-mode
ARM: dts: Fix omap4 system timer source clocks
ARM: dts: Fix duovero smsc interrupt for suspend
ARM: dts: am335x-pocketbeagle: Fix mmc0 Write Protect
Revert "bus: ti-sysc: Increase max softreset wait"
ARM: dts: am437x-epos-evm: remove lcd timings
ARM: dts: am437x-gp-evm: remove lcd timings
ARM: dts: am437x-sk-evm: remove lcd timings
ARM: dts: dra7-evm-common: Fix duplicate mailbox nodes
ARM: dts: dra7: Fix timer nodes properly for timer_sys_ck clocks
ARM: dts: Fix am33xx.dtsi ti,sysc-mask wrong softreset flag
ARM: dts: Fix am33xx.dtsi USB ranges length
bus: ti-sysc: Increase max softreset wait
ARM: OMAP2+: Fix legacy mode dss_reset
bus: ti-sysc: Fix uninitialized framedonetv_irq
bus: ti-sysc: Ignore clockactivity unless specified as a quirk
bus: ti-sysc: Use optional clocks on for enable and wait for softreset bit
ARM: dts: omap4-droid4: Fix spi configuration and increase rate
bus: ti-sysc: Flush posted write on enable and disable
soc: ti: omap-prm: use atomic iopoll instead of sleeping one
...
Here are a couple of bug fixes, mostly for devicetree files
NXP i.MX:
- Use correct voltage on some i.MX8M board device trees to
avoid hardware damage
- Code fixes for a compiler warning and incorrect reference
counting, both harmless.
- Fix the i.MX8M SoC driver to correctly identify imx8mp
- Fix watchdog configuration in imx6ul-kontron device tree.
Broadcom:
- A small regression fix for the Raspberry-Pi firmware driver
- A Kconfig change to use the correct timer driver on Northstar
- A DT fix for the Luxul XWC-2000 machine
- Two more DT fixes for NSP SoCs
STmicroelectronics STI
- Revert one broken patch for L2 cache configuration
ARM Versatile Express:
- Fix a regression by reverting a broken DT cleanup
TEE drivers:
- MAINTAINERS: change tee mailing list
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----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=P5b/
-----END PGP SIGNATURE-----
Merge tag 'arm-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"Here are a couple of bug fixes, mostly for devicetree files
NXP i.MX:
- Use correct voltage on some i.MX8M board device trees to avoid
hardware damage
- Code fixes for a compiler warning and incorrect reference counting,
both harmless.
- Fix the i.MX8M SoC driver to correctly identify imx8mp
- Fix watchdog configuration in imx6ul-kontron device tree.
Broadcom:
- A small regression fix for the Raspberry-Pi firmware driver
- A Kconfig change to use the correct timer driver on Northstar
- A DT fix for the Luxul XWC-2000 machine
- Two more DT fixes for NSP SoCs
STmicroelectronics STI
- Revert one broken patch for L2 cache configuration
ARM Versatile Express:
- Fix a regression by reverting a broken DT cleanup
TEE drivers:
- MAINTAINERS: change tee mailing list"
* tag 'arm-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
Revert "ARM: sti: Implement dummy L2 cache's write_sec"
soc: imx8m: fix build warning
ARM: imx6: add missing put_device() call in imx6q_suspend_init()
ARM: imx5: add missing put_device() call in imx_suspend_alloc_ocram()
soc: imx8m: Correct i.MX8MP UID fuse offset
ARM: dts: imx6ul-kontron: Change WDOG_ANY signal from push-pull to open-drain
ARM: dts: imx6ul-kontron: Move watchdog from Kontron i.MX6UL/ULL board to SoM
arm64: dts: imx8mm-beacon: Fix voltages on LDO1 and LDO2
arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range
arm64: dts: imx8mm-evk: correct ldo1/ldo2 voltage range
ARM: dts: NSP: Correct FA2 mailbox node
ARM: bcm2835: Fix integer overflow in rpi_firmware_print_firmware_revision()
MAINTAINERS: change tee mailing list
ARM: dts: NSP: Disable PL330 by default, add dma-coherent property
ARM: bcm: Select ARM_TIMER_SP804 for ARCH_BCM_NSP
ARM: dts: BCM5301X: Add missing memory "device_type" for Luxul XWC-2000
arm: dts: vexpress: Move mcc node back into motherboard node
- Robustness fix for TPM log parsing code
- kobject refcount fix for the ESRT parsing code
- Two efivarfs fixes to make it behave more like an ordinary file system
- Style fixup for zero length arrays
- Fix a regression in path separator handling in the initrd loader
- Fix a missing prototype warning
- Add some kerneldoc headers for newly introduced stub routines
- Allow support for SSDT overrides via EFI variables to be disabled
- Report CPU mode and MMU state upon entry for 32-bit ARM
- Use the correct stack pointer alignment when entering from mixed mode
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=F0bv
-----END PGP SIGNATURE-----
Merge tag 'efi-urgent-2020-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
- Fix build regression on v4.8 and older
- Robustness fix for TPM log parsing code
- kobject refcount fix for the ESRT parsing code
- Two efivarfs fixes to make it behave more like an ordinary file
system
- Style fixup for zero length arrays
- Fix a regression in path separator handling in the initrd loader
- Fix a missing prototype warning
- Add some kerneldoc headers for newly introduced stub routines
- Allow support for SSDT overrides via EFI variables to be disabled
- Report CPU mode and MMU state upon entry for 32-bit ARM
- Use the correct stack pointer alignment when entering from mixed mode
* tag 'efi-urgent-2020-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/libstub: arm: Print CPU boot mode and MMU state at boot
efi/libstub: arm: Omit arch specific config table matching array on arm64
efi/x86: Setup stack correctly for efi_pe_entry
efi: Make it possible to disable efivar_ssdt entirely
efi/libstub: Descriptions for stub helper functions
efi/libstub: Fix path separator regression
efi/libstub: Fix missing-prototype warning for skip_spaces()
efi: Replace zero-length array and use struct_size() helper
efivarfs: Don't return -EINTR when rate-limiting reads
efivarfs: Update inode modification time for successful writes
efi/esrt: Fix reference count leak in esre_create_sysfs_entry.
efi/tpm: Verify event log header before parsing
efi/x86: Fix build with gcc 4
The most anticipated fix in this pull request is probably the horrible build
fix for the RANDSTRUCT fail that didn't make -rc2. Also included is the cleanup
that removes those BUILD_BUG_ON()s and replaces it with ugly unions.
Also included is the try_to_wake_up() race fix that was first triggered by
Paul's RCU-torture runs, but was independently hit by Dave Chinner's fstest
runs as well.
-----BEGIN PGP SIGNATURE-----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=EGOe
-----END PGP SIGNATURE-----
Merge tag 'sched_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
"The most anticipated fix in this pull request is probably the horrible
build fix for the RANDSTRUCT fail that didn't make -rc2. Also included
is the cleanup that removes those BUILD_BUG_ON()s and replaces it with
ugly unions.
Also included is the try_to_wake_up() race fix that was first
triggered by Paul's RCU-torture runs, but was independently hit by
Dave Chinner's fstest runs as well"
* tag 'sched_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cfs: change initial value of runnable_avg
smp, irq_work: Continue smp_call_function*() and irq_work*() integration
sched/core: s/WF_ON_RQ/WQ_ON_CPU/
sched/core: Fix ttwu() race
sched/core: Fix PI boosting between RT and DEADLINE tasks
sched/deadline: Initialize ->dl_boosted
sched/core: Check cpus_mask, not cpus_ptr in __set_cpus_allowed_ptr(), to fix mask corruption
sched/core: Fix CONFIG_GCC_PLUGIN_RANDSTRUCT build fail
* Use the proper length type in the 32-bit truncate() syscall variant,
by Jiri Slaby.
* Reinit IA32_FEAT_CTL during wakeup to fix the case where after
resume, VMXON would #GP due to VMX not being properly enabled, by Sean
Christopherson.
* Fix a static checker warning in the resctrl code, by Dan Carpenter.
* Add a CR4 pinning mask for bits which cannot change after boot, by
Kees Cook.
* Align the start of the loop of __clear_user() to 16 bytes, to improve
performance on AMD zen1 and zen2 microarchitectures, by Matt Fleming.
-----BEGIN PGP SIGNATURE-----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=hxkd
-----END PGP SIGNATURE-----
Merge tag 'x86_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- AMD Memory bandwidth counter width fix, by Babu Moger.
- Use the proper length type in the 32-bit truncate() syscall variant,
by Jiri Slaby.
- Reinit IA32_FEAT_CTL during wakeup to fix the case where after
resume, VMXON would #GP due to VMX not being properly enabled, by
Sean Christopherson.
- Fix a static checker warning in the resctrl code, by Dan Carpenter.
- Add a CR4 pinning mask for bits which cannot change after boot, by
Kees Cook.
- Align the start of the loop of __clear_user() to 16 bytes, to improve
performance on AMD zen1 and zen2 microarchitectures, by Matt Fleming.
* tag 'x86_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm/64: Align start of __clear_user() loop to 16-bytes
x86/cpu: Use pinning mask for CR4 bits needing to be 0
x86/resctrl: Fix a NULL vs IS_ERR() static checker warning in rdt_cdp_peer_get()
x86/cpu: Reinitialize IA32_FEAT_CTL MSR on BSP during wakeup
syscalls: Fix offset type of ksys_ftruncate()
x86/resctrl: Fix memory bandwidth counter width for AMD
A single commit that uses "arch_" atomic operations to avoid the
instrumentation that comes with the non-"arch_" versions. In preparation
for that commit, it also has another commit that makes these "arch_"
atomic operations available to generic code.
Without these commits, KCSAN uses can see pointless errors.
Both from Peter Zijlstra.
-----BEGIN PGP SIGNATURE-----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=amVp
-----END PGP SIGNATURE-----
Merge tag 'rcu_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU-vs-KCSAN fixes from Borislav Petkov:
"A single commit that uses "arch_" atomic operations to avoid the
instrumentation that comes with the non-"arch_" versions.
In preparation for that commit, it also has another commit that makes
these "arch_" atomic operations available to generic code.
Without these commits, KCSAN uses can see pointless errors"
* tag 'rcu_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rcu: Fixup noinstr warnings
locking/atomics: Provide the arch_atomic_ interface to generic code
Address KCOV vs noinstr. There is no function attribute to selectively
suppress KCOV instrumentation, instead teach objtool to NOP out the
calls in noinstr functions.
This cures a bunch of KCOV crashes (as used by syzcaller).
-----BEGIN PGP SIGNATURE-----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=0Wd6
-----END PGP SIGNATURE-----
Merge tag 'objtool_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Borislav Petkov:
"Three fixes from Peter Zijlstra suppressing KCOV instrumentation in
noinstr sections.
Peter Zijlstra says:
"Address KCOV vs noinstr. There is no function attribute to
selectively suppress KCOV instrumentation, instead teach objtool
to NOP out the calls in noinstr functions"
This cures a bunch of KCOV crashes (as used by syzcaller)"
* tag 'objtool_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Fix noinstr vs KCOV
objtool: Provide elf_write_{insn,reloc}()
objtool: Clean up elf_write() condition
These patches address a number of instrumentation issues that were found after
the x86/entry overhaul. When combined with rcu/urgent and objtool/urgent, these
patches make UBSAN/KASAN/KCSAN happy again.
Part of making this all work is bumping the minimum GCC version for KASAN
builds to gcc-8.3, the reason for this is that the __no_sanitize_address
function attribute is broken in GCC releases before that.
No known GCC version has a working __no_sanitize_undefined, however because the
only noinstr violation that results from this happens when an UB is found, we
treat it like WARN. That is, we allow it to violate the noinstr rules in order
to get the warning out.
-----BEGIN PGP SIGNATURE-----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=fcu1
-----END PGP SIGNATURE-----
Merge tag 'x86_entry_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 entry fixes from Borislav Petkov:
"This is the x86/entry urgent pile which has accumulated since the
merge window.
It is not the smallest but considering the almost complete entry core
rewrite, the amount of fixes to follow is somewhat higher than usual,
which is to be expected.
Peter Zijlstra says:
'These patches address a number of instrumentation issues that were
found after the x86/entry overhaul. When combined with rcu/urgent
and objtool/urgent, these patches make UBSAN/KASAN/KCSAN happy
again.
Part of making this all work is bumping the minimum GCC version for
KASAN builds to gcc-8.3, the reason for this is that the
__no_sanitize_address function attribute is broken in GCC releases
before that.
No known GCC version has a working __no_sanitize_undefined, however
because the only noinstr violation that results from this happens
when an UB is found, we treat it like WARN. That is, we allow it to
violate the noinstr rules in order to get the warning out'"
* tag 'x86_entry_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry: Fix #UD vs WARN more
x86/entry: Increase entry_stack size to a full page
x86/entry: Fixup bad_iret vs noinstr
objtool: Don't consider vmlinux a C-file
kasan: Fix required compiler version
compiler_attributes.h: Support no_sanitize_undefined check with GCC 4
x86/entry, bug: Comment the instrumentation_begin() usage for WARN()
x86/entry, ubsan, objtool: Whitelist __ubsan_handle_*()
x86/entry, cpumask: Provide non-instrumented variant of cpu_is_offline()
compiler_types.h: Add __no_sanitize_{address,undefined} to noinstr
kasan: Bump required compiler version
x86, kcsan: Add __no_kcsan to noinstr
kcsan: Remove __no_kcsan_or_inline
x86, kcsan: Remove __no_kcsan_or_inline usage
Some performance regression on reaim benchmark have been raised with
commit 070f5e860e ("sched/fair: Take into account runnable_avg to classify group")
The problem comes from the init value of runnable_avg which is initialized
with max value. This can be a problem if the newly forked task is finally
a short task because the group of CPUs is wrongly set to overloaded and
tasks are pulled less agressively.
Set initial value of runnable_avg equals to util_avg to reflect that there
is no waiting time so far.
Fixes: 070f5e860e ("sched/fair: Take into account runnable_avg to classify group")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200624154422.29166-1-vincent.guittot@linaro.org
Instead of relying on BUG_ON() to ensure the various data structures
line up, use a bunch of horrible unions to make it all automatic.
Much of the union magic is to ensure irq_work and smp_call_function do
not (yet) see the members of their respective data structures change
name.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lkml.kernel.org/r/20200622100825.844455025@infradead.org
Lukasz Luba