Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->voltage_ops still
around to ease transition.
Remove handle->voltage_priv now unused.
Link: https://lore.kernel.org/r/20210316124903.35011-29-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations.
Remove handle->system_priv now unused.
Link: https://lore.kernel.org/r/20210316124903.35011-28-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Now that all the SCMI driver users have been migrated to the new interface
remove the legacy interface and all the transient code.
Link: https://lore.kernel.org/r/20210316124903.35011-27-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->sensor_ops still
around to ease transition.
Remove handle->sensor_priv now unused.
Link: https://lore.kernel.org/r/20210316124903.35011-24-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Now that all the SCMI driver users have been migrated to the new interface
remove the legacy interface and all the transient code.
Link: https://lore.kernel.org/r/20210316124903.35011-23-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->reset_ops still
around to ease transition.
Remove handle->reset_priv now unused.
Link: https://lore.kernel.org/r/20210316124903.35011-21-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Now that all the SCMI driver users have been migrated to the new interface
remove the legacy interface and all the transient code.
Link: https://lore.kernel.org/r/20210316124903.35011-20-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->clk_ops still
around to ease transition.
Remove handle->clock_priv now unused.
Link: https://lore.kernel.org/r/20210316124903.35011-18-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Now that all the SCMI driver users have been migrated to the new interface
remove the legacy interface and all the transient code.
Link: https://lore.kernel.org/r/20210316124903.35011-17-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Port the scmi genpd driver to the new SCMI power interface based on
protocol handles and common devm_get_ops().
Link: https://lore.kernel.org/r/20210316124903.35011-16-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->power_ops still
around to ease transition.
Remove handle->power_priv now unused.
Link: https://lore.kernel.org/r/20210316124903.35011-15-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Now that all the SCMI driver users have been migrated to the new interface
remove the legacy interface and all the transient code.
Link: https://lore.kernel.org/r/20210316124903.35011-14-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->perf_ops still
around to ease transition.
Remove handle->perf_priv now unused.
Link: https://lore.kernel.org/r/20210316124903.35011-12-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Port the SCMI base protocol to new protocol handles based interface.
Link: https://lore.kernel.org/r/20210316124903.35011-11-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add an helper to access from a protocol handle, the SCMI version data
which is exposed on sysfs. Such helper will be needed by SCMI base
protocol initialization once it will be moved to new protocol handles
scheme.
Link: https://lore.kernel.org/r/20210316124903.35011-10-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add new core SCMI transfer operations based on protocol handles to
enable protocols to builds and send their own protocol specific messages.
Keep old original scmi_xfer_ operations interface as wrappers around the
new interface in order to let coexist old and new interfaces to ease
protocol by protocol migration.
In order to support such migration the above wrappers and some
additional transient code is also introduced in this commit. It will be
later removed as a whole once the full migration of protocols and SCMI
drivers will have been completed.
Link: https://lore.kernel.org/r/20210316124903.35011-9-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Convert all refactored events registration routines to use protocol
handles.
In order to maintain bisectability and to allow protocols and drivers
to be later ported to the new protocol handle interface one by one,
introduce here also some transient code that will be removed later
in order to ease such transition.
Link: https://lore.kernel.org/r/20210316124903.35011-8-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add a new refactored protocol events registration helper and invoke it
from the centralized initialization process triggered by get_ops() and
friends.
Also add a `get_num_sources` as a new optional callback amongst protocol
events operations. Finally remove events registration call-sites from
within the legacy protocol init routines.
Link: https://lore.kernel.org/r/20210316124903.35011-7-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Expose to the SCMI drivers a new alternative devres managed notifications
API based on protocol handles.
All drivers still keep using the old API, no functional change.
Link: https://lore.kernel.org/r/20210316124903.35011-6-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Account for any active registered notifier against the proper related
protocol, do not consider pending event handlers, only active handlers
will concur to protocol usage accounting.
Link: https://lore.kernel.org/r/20210316124903.35011-5-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Expose to the SCMI drivers a new devres managed common protocols API
based on generic get/put methods and protocol handles.
All drivers still keep using the old API, no functional change.
Link: https://lore.kernel.org/r/20210316124903.35011-4-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add basic protocol handles definitions and private data helpers.
A protocol handle identifies a protocol instance initialized against a
specific handle, it embeds all the references to the core SCMI transfer
methods that will be needed by a protocol implementation to build and
send its own protocol specific messages using common core methods.
As such, in the interface, a protocol handle will be passed down from
the core to the protocol specific initialization callback at init time.
Anyways, at this point only definitions are introduced, all protocols
initialization code and SCMI drivers probing is still based on the old
interface, so no functional change.
Link: https://lore.kernel.org/r/20210316124903.35011-3-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Extend common protocol registration routines and provide some new generic
protocols get/put helpers that can track protocols usage and automatically
perform the proper initialization and de-initialization on demand when
required.
Convert all standard protocols to use this new registration scheme while
keeping them all still using the usual initialization logic bound to SCMI
devices probing.
Link: https://lore.kernel.org/r/20210316124903.35011-2-cristian.marussi@arm.com
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
ADC1 is not defined in pd driver on 8QM.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Since the introduction of the PM domain support for the scu-pd, the genpd
framework has been continuously improved. More preciously, using a single
global power domain can quite easily be deployed for imx platforms.
To avoid confusions, let's therefore make an update to the comments about
the missing pieces.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Big set in here from Alexandru Ardelean enabling multiple buffer support.
This includes providing a new directory per buffer that combines
what was previously in buffer/ and scan_elements/. Old interfaces still
in place for compatiblity.
Note immuatable branch for scmi patches to allow for some significant
rework going on in that subsystem. Merge required updating to reflect
some changes in IIO.
Late rebase to fix some wrong fixes tags due to some earlier rebases
made necessary by messing up the immutable branch.
IIO New Device Support
* adi,ad5686
- Add info to support AD5673R and AD5677R
* bosch,bmi088
- New driver supporting this accelerometer + gyroscope
* cros_ec_mkbp
- New driver for this proximity sensor that exposes a 'front'
sensor. Very simple switch like device, but driver allows it
to share interface with more sophisticated proximity sensors.
* iio_scmi
- New driver to support ARM SCMI protocol to expose underlying
accelerometers and gyroscopes via this firmware interface.
* st,st_magn
- Add ID for IISMDC magnetometer.
* ti,ads131e0
- New driver supporting ads131e04, ads131e06 and ads131e08 24 bit ADCs
Counter New Device Support
* IRQ or GPIO based counter
- New driver for a conceptually simple counter that uses interrupts
to perform the count.
Features
* core
- Dual buffer supprt including:
Various helpers to centralize handling of bufferer related elements.
Document existing and new IOCTLs
Register the IIO chrdev only if it can actually be used for anything.
Rework attribute group creation in the core (lots of patches)
Merge buffer/ and scan_elements/ entries into one list + maintain
backwards compatible set.
Introduce the internal logic and IOCTL to allow multiple buffers
+ access to an anon FD per buffer to actually read from it.
Tidy up tools/iio/iio_generic_buffer and switch to new interfaces.
Update ABI docs.
A few follow up fixes, unsuprising as this was a huge bit of rework.
- Move common case setting of trig->parent to the core.
- Provide an iio_read_channel_processed_scale() to avoid loss of
precision from iio_read_channel_processed() then applying integer
scale. Use it in ntc_thermistor driver in hwmon.
- Allow drivers to specify labels from elsewhere than DT. Use it for
bmc150 and kxcjk-1013 labels related to position on 2 in one tablets.
- Document label usage for proximity and accelerometer sensors.
- Some local variable renames for consistency
tools
- Add -a parameter to iio_event_monitor to allow autoenabling of events.
* acpi_als
- Add trigger support for devices that don't support notification method.
* adi,ad7124
- Allow more than 8 channels. This is a complex little device, but is
capable of supporting up to 16 channels if the share certain
configuration settings.
* hrtimer-trigger
- Support sampling frequency below 1Hz.
* mediatek,mt8195-auxadc
- Add compatible to binding docs (always also includes mt8173)
* st,stm32-adc
- Enable timetamps when not using DMA.
* vishay,vcnl3020
- Sampling frequency control.
Cleanup and minor fixes:
* treewide
- Use some getter and setter functions instead of opencoding.
- Set of fixes for pointless casts in various drivers.
- Avoid wrong kernel-doc marking on comment blocks.
- Fix various other minor kernel-doc issues shown by W=1
* core
- Use a signed temporary for IIO_VAL_FRACTIONAL_LOG2 to avoid odd casts.
- Fix IIO_VAL_FRACTIONAL_LOG2 for values between -1.0 and 0.0
- Add unit tests for iio_format_value()
* docs
- Fix formatting/typos in iio_configfs.rst and buffers.rst
- Add documentation of index in buffers.rst
- Fix scan element description
- Avoid some issues with HTML generation from ABI docs by moving
duplicated defintions to more generic files.
- Drop reference to long dead mailing list.
* 104-quad
- Remove left over deprecated IIO counter ABI.
* adi,adi-axi-adc
- Fix wrong bit of docs.
* adi,ad5791
- Typos
* adi,ad9834
- Switch to device managed functions in probe.
* adi,adis*
- Add and use helpers for locking to reduced duplication.
* adi,adis16480
- Fix calculation of sampling frequency when using pulse per second input.
* adi,adis16475
- Calculate the IMU scaled internal sampling rate and runtime depending
on sysfs based configuration rather than getting from DT. Drop now
unnecessary property from DT bindings doc.
* cros_ec
- Fix result of a series of recent changes that means extended buffer
attributes turn up in the wrong place. Too complex to revert the
various patches unfortunately so this is a bit messy.
* fsl,mma3452
- Indentation cleanup.
* hid-sensors
- Size of storage needs to increase for some parts when using quaternions.
- Move the get sensistivity attribute to hid-sensors-common to reduce
duplication. Enable it for more device types.
- Correctly handle relative sensitivity if reported that way including
documenting the new ABI.
* maxim,max517
- Use device managed functions in probe.
* mediatek,mt6360-adc
- Use asm/unaligned.h instead of directly including
unaligned/be_byteshift.h
* novuton,npcm-adc
- Local lock instead of missusing mlock.
* semtech,sx9500
- Typos
* st,sensor
- typo fix
* st,spear-adc
- Local lock instead of missusing mlock.
* st,stm32-adc
- Long standing HAS_IOMEM dependency fix.
* st,stm32-counter
- Remove left over deprecated IIO counter ABI.
* ti,palmas-adc
- Local lock instead of missusing mlock.
* ti,tmp007
- Switch to device managed functions in probe.
Other
* MAINTAINERS
- Move Peter Meerwald-Stadler to Credits at his request
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Merge tag 'iio-for-5.13a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
1st set of IIO/counter device support, features and cleanup in the 5.13 cycle
Big set in here from Alexandru Ardelean enabling multiple buffer support.
This includes providing a new directory per buffer that combines
what was previously in buffer/ and scan_elements/. Old interfaces still
in place for compatiblity.
Note immuatable branch for scmi patches to allow for some significant
rework going on in that subsystem. Merge required updating to reflect
some changes in IIO.
Late rebase to fix some wrong fixes tags due to some earlier rebases
made necessary by messing up the immutable branch.
IIO New Device Support
* adi,ad5686
- Add info to support AD5673R and AD5677R
* bosch,bmi088
- New driver supporting this accelerometer + gyroscope
* cros_ec_mkbp
- New driver for this proximity sensor that exposes a 'front'
sensor. Very simple switch like device, but driver allows it
to share interface with more sophisticated proximity sensors.
* iio_scmi
- New driver to support ARM SCMI protocol to expose underlying
accelerometers and gyroscopes via this firmware interface.
* st,st_magn
- Add ID for IISMDC magnetometer.
* ti,ads131e0
- New driver supporting ads131e04, ads131e06 and ads131e08 24 bit ADCs
Counter New Device Support
* IRQ or GPIO based counter
- New driver for a conceptually simple counter that uses interrupts
to perform the count.
Features
* core
- Dual buffer supprt including:
Various helpers to centralize handling of bufferer related elements.
Document existing and new IOCTLs
Register the IIO chrdev only if it can actually be used for anything.
Rework attribute group creation in the core (lots of patches)
Merge buffer/ and scan_elements/ entries into one list + maintain
backwards compatible set.
Introduce the internal logic and IOCTL to allow multiple buffers
+ access to an anon FD per buffer to actually read from it.
Tidy up tools/iio/iio_generic_buffer and switch to new interfaces.
Update ABI docs.
A few follow up fixes, unsuprising as this was a huge bit of rework.
- Move common case setting of trig->parent to the core.
- Provide an iio_read_channel_processed_scale() to avoid loss of
precision from iio_read_channel_processed() then applying integer
scale. Use it in ntc_thermistor driver in hwmon.
- Allow drivers to specify labels from elsewhere than DT. Use it for
bmc150 and kxcjk-1013 labels related to position on 2 in one tablets.
- Document label usage for proximity and accelerometer sensors.
- Some local variable renames for consistency
tools
- Add -a parameter to iio_event_monitor to allow autoenabling of events.
* acpi_als
- Add trigger support for devices that don't support notification method.
* adi,ad7124
- Allow more than 8 channels. This is a complex little device, but is
capable of supporting up to 16 channels if the share certain
configuration settings.
* hrtimer-trigger
- Support sampling frequency below 1Hz.
* mediatek,mt8195-auxadc
- Add compatible to binding docs (always also includes mt8173)
* st,stm32-adc
- Enable timetamps when not using DMA.
* vishay,vcnl3020
- Sampling frequency control.
Cleanup and minor fixes:
* treewide
- Use some getter and setter functions instead of opencoding.
- Set of fixes for pointless casts in various drivers.
- Avoid wrong kernel-doc marking on comment blocks.
- Fix various other minor kernel-doc issues shown by W=1
* core
- Use a signed temporary for IIO_VAL_FRACTIONAL_LOG2 to avoid odd casts.
- Fix IIO_VAL_FRACTIONAL_LOG2 for values between -1.0 and 0.0
- Add unit tests for iio_format_value()
* docs
- Fix formatting/typos in iio_configfs.rst and buffers.rst
- Add documentation of index in buffers.rst
- Fix scan element description
- Avoid some issues with HTML generation from ABI docs by moving
duplicated defintions to more generic files.
- Drop reference to long dead mailing list.
* 104-quad
- Remove left over deprecated IIO counter ABI.
* adi,adi-axi-adc
- Fix wrong bit of docs.
* adi,ad5791
- Typos
* adi,ad9834
- Switch to device managed functions in probe.
* adi,adis*
- Add and use helpers for locking to reduced duplication.
* adi,adis16480
- Fix calculation of sampling frequency when using pulse per second input.
* adi,adis16475
- Calculate the IMU scaled internal sampling rate and runtime depending
on sysfs based configuration rather than getting from DT. Drop now
unnecessary property from DT bindings doc.
* cros_ec
- Fix result of a series of recent changes that means extended buffer
attributes turn up in the wrong place. Too complex to revert the
various patches unfortunately so this is a bit messy.
* fsl,mma3452
- Indentation cleanup.
* hid-sensors
- Size of storage needs to increase for some parts when using quaternions.
- Move the get sensistivity attribute to hid-sensors-common to reduce
duplication. Enable it for more device types.
- Correctly handle relative sensitivity if reported that way including
documenting the new ABI.
* maxim,max517
- Use device managed functions in probe.
* mediatek,mt6360-adc
- Use asm/unaligned.h instead of directly including
unaligned/be_byteshift.h
* novuton,npcm-adc
- Local lock instead of missusing mlock.
* semtech,sx9500
- Typos
* st,sensor
- typo fix
* st,spear-adc
- Local lock instead of missusing mlock.
* st,stm32-adc
- Long standing HAS_IOMEM dependency fix.
* st,stm32-counter
- Remove left over deprecated IIO counter ABI.
* ti,palmas-adc
- Local lock instead of missusing mlock.
* ti,tmp007
- Switch to device managed functions in probe.
Other
* MAINTAINERS
- Move Peter Meerwald-Stadler to Credits at his request
* tag 'iio-for-5.13a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (119 commits)
iio: acpi_als: Add trigger support
iio: acpi_als: Add local variable dev in probe
iio: acpi_als: Add timestamp channel
iio: adc: ad7292: Modify the bool initialization assignment
iio: cros: unify hw fifo attributes without API changes
iio: kfifo: add devm_iio_triggered_buffer_setup_ext variant
iio: event_monitor: Enable events before monitoring
dt-bindings: iio: adc: Add compatible for Mediatek MT8195
iio:magnetometer: Add Support for ST IIS2MDC
dt-bindings: iio: st,st-sensors add IIS2MDC.
staging: iio: ad9832: kernel-doc fixes
iio:dac:max517.c: Use devm_iio_device_register()
iio:cros_ec_sensors: Fix a wrong function name in kernel doc.
iio: buffer: kfifo_buf: kernel-doc, typo in function name.
iio: accel: sca3000: kernel-doc fixes. Missing - and wrong function names.
iio: adc: adi-axi-adc: Drop false marking for kernel-doc
iio: adc: cpcap-adc: kernel-doc fix - that should be _ in structure name
iio: dac: ad5504: fix wrong part number in kernel-doc structure name.
iio: dac: ad5770r: kernel-doc fix case of letter R wrong in structure name
iio: adc: ti-adc084s021: kernel-doc fixes, missing function names
...
When cross compiling x86 on an ARM machine with clang, there are several
errors along the lines of:
arch/x86/include/asm/page_64.h:52:7: error: invalid output constraint '=D' in asm
This happens because the x86 flags in the EFI stub are not derived from
KBUILD_CFLAGS like the other architectures are and the clang flags that
set the target architecture ('--target=') and the path to the GNU cross
tools ('--prefix=') are not present, meaning that the host architecture
is targeted.
These flags are available as $(CLANG_FLAGS) from the main Makefile so
add them to the cflags for x86 so that cross compiling works as expected.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lkml.kernel.org/r/20210326000435.4785-4-nathan@kernel.org
Agilex, N5X and Stratix 10 share all quite similar arm64 hard cores and
SoC-part. Up to a point that N5X uses the same DTSI as Agilex. From
the Linux kernel point of view these are flavors of the same
architecture so there is no need for three top-level arm64
architectures. Simplify this by merging all three architectures into
ARCH_INTEL_SOCFPGA and dropping the other ARCH* arm64 Kconfig entries.
The side effect is that the INTEL_STRATIX10_SERVICE will now be
available for both 32-bit and 64-bit Intel SoCFPGA, even though it is
used only for 64-bit.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
When unbinding the firmware device we need to make sure it has no
consumers left. Otherwise we'd leave them with a firmware handle
pointing at freed memory.
Keep a reference count of all consumers and introduce rpi_firmware_put()
which will permit automatically decrease the reference count upon
unbinding consumer drivers.
Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
- anothing missing RT_PROP table related fix, to ensure that the efivarfs
pseudo filesystem fails gracefully if variable services are unsupported
- use the correct alignment for literal EFI GUIDs
- fix a use after unmap issue in the memreserve code
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Merge tag 'efi-urgent-for-v5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/urgent
Pull EFI fixes from Ard Biesheuvel:
"- another missing RT_PROP table related fix, to ensure that the efivarfs
pseudo filesystem fails gracefully if variable services are unsupported
- use the correct alignment for literal EFI GUIDs
- fix a use after unmap issue in the memreserve code"
Signed-off-by: Ingo Molnar <mingo@kernel.org>
In the for loop in efi_mem_reserve_persistent(), prsv = rsv->next
use the unmapped rsv. Use the unmapped pages will cause segment
fault.
Fixes: 18df7577ad ("efi/memreserve: deal with memreserve entries in unmapped memory")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
As per UEFI spec 2.8B section 8.2, EFI_UNSUPPORTED may be returned by
EFI variable runtime services if no variable storage is supported by
firmware. In this case, there is no point for kernel to continue
efivars initialization. That said, efivar_init() should fail by
returning an error code, so that efivarfs will not be mounted on
/sys/firmware/efi/efivars at all. Otherwise, user space like efibootmgr
will be confused by the EFIVARFS_MAGIC seen there, while EFI variable
calls cannot be made successfully.
Cc: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Fix an oversight in the handling of the UEFI 2.8 EFI_RT_PROPERTIES_TABLE,
which was added v5.10, but failed to take the SetVirtualAddressMap() RT
service into account.
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Merge tag 'efi-urgent-for-v5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Ard Biesheuvel via Borislav Petkov:
"Fix an oversight in the handling of EFI_RT_PROPERTIES_TABLE, which was
added v5.10, but failed to take the SetVirtualAddressMap() RT service
into account"
* tag 'efi-urgent-for-v5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: stub: omit SetVirtualAddressMap() if marked unsupported in RT_PROP table
This change provides ARM SCMI Protocol based IIO device.
This driver provides support for Accelerometer and Gyroscope using
SCMI Sensor Protocol extensions added in the SCMIv3.0 ARM specification
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jyoti Bhayana <jbhayana@google.com>
Link: https://lore.kernel.org/r/20210212172235.507028-2-jbhayana@google.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210309231259.78050-2-jbhayana@google.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Separated function was not improving code quality much (or at all).
Moreover it expected possible flash end address as argument and it was
returning NVRAM size.
The new code always operates on offsets which means less logic and less
calculations.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This loop requires variable initialization, stop condition and post
iteration increment. It's pretty much a for loop definition.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This simplifies function finding NVRAM. It doesn't directly deal with
NVRAM structure anymore and is a bit smaller.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This avoids duplicating code doing casting and checking for NVRAM magic.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
1. Use "bcm47xx_" function name prefix for consistency
2. It takes flash start as argument so s/iobase/flash_start/
3. "off" was used for finding flash end so just call it "flash_size"
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
When DMI information is not present, trying to assign the card long
name results in the following warning.
WARNING KERN tegra-audio-graph-card sound: ASoC: no DMI vendor name!
The initial solution suggested was to test if the card device is an
ACPI one. This causes a regression visible to userspace on all Intel
platforms, with UCM unable to load card profiles based on DMI
information: the card devices are not necessarily ACPI ones, e.g. when
the parent creates platform devices on Intel devices.
To fix this problem, this patch exports the existing dmi_available
variable and tests it in the ASoC core.
Fixes: c014170408 ("ASoC: soc-core: Prevent warning if no DMI table is present")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Jean Delvare <jdelvare@suse.de>
Link: https://lore.kernel.org/r/20210310193928.108850-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
As per ARM ARM DDI 0487G.a, when FEAT_LPA2 is implemented, ID_AA64MMFR0_EL1
might contain a range of values to describe supported translation granules
(4K and 16K pages sizes in particular) instead of just enabled or disabled
values. This changes __enable_mmu() function to handle complete acceptable
range of values (depending on whether the field is signed or unsigned) now
represented with ID_AA64MMFR0_TGRAN_SUPPORTED_[MIN..MAX] pair. While here,
also fix similar situations in EFI stub and KVM as well.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.cs.columbia.edu
Cc: linux-efi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1615355590-21102-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
The EFI_RT_PROPERTIES_TABLE contains a mask of runtime services that are
available after ExitBootServices(). This mostly does not concern the EFI
stub at all, given that it runs before that. However, there is one call
that is made at runtime, which is the call to SetVirtualAddressMap()
(which is not even callable at boot time to begin with)
So add the missing handling of the RT_PROP table to ensure that we only
call SetVirtualAddressMap() if it is not being advertised as unsupported
by the firmware.
Cc: <stable@vger.kernel.org> # v5.10+
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Fix smatch warning:
drivers/firmware/xilinx/zynqmp.c:1288 zynqmp_firmware_remove()
error: dereferencing freed memory 'feature_data'
Use hash_for_each_safe for safe removal of hash entry.
Fixes: acfdd18591 ("firmware: xilinx: Use hash-table for api feature check")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Link: https://lore.kernel.org/r/1612765883-22018-1-git-send-email-rajan.vaja@xilinx.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Here is the large set of char/misc/whatever driver subsystem updates for
5.12-rc1. Over time it seems like this tree is collecting more and more
tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86
maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only reported
issue being a merge conflict in include/linux/mod_devicetable.h that you
will hit in your tree due to the dfl_device_id addition from the fpga
subsystem in here. The resolution should be simple.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc/whatever driver subsystem updates
for 5.12-rc1. Over time it seems like this tree is collecting more and
more tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86 maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only
reported issue being a merge conflict due to the dfl_device_id
addition from the fpga subsystem in here"
* tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits)
spmi: spmi-pmic-arb: Fix hw_irq overflow
Documentation: coresight: Add PID tracing description
coresight: etm-perf: Support PID tracing for kernel at EL2
coresight: etm-perf: Clarify comment on perf options
ACRN: update MAINTAINERS: mailing list is subscribers-only
regmap: sdw-mbq: use MODULE_LICENSE("GPL")
regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ
regmap: sdw: use _no_pm functions in regmap_read/write
soundwire: intel: fix possible crash when no device is detected
MAINTAINERS: replace my with email with replacements
mhi: Fix double dma free
uapi: map_to_7segment: Update example in documentation
uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED
drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue
firewire: replace tricky statement by two simple ones
vme: make remove callback return void
firmware: google: make coreboot driver's remove callback return void
firmware: xilinx: Use explicit values for all enum values
sample/acrn: Introduce a sample of HSM ioctl interface usage
virt: acrn: Introduce an interface for Service VM to control vCPU
...
- Clang LTO build infrastructure and arm64-specific enablement (Sami Tolvanen)
- Recursive build CC_FLAGS_LTO fix (Alexander Lobakin)
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Merge tag 'clang-lto-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull clang LTO updates from Kees Cook:
"Clang Link Time Optimization.
This is built on the work done preparing for LTO by arm64 folks,
tracing folks, etc. This includes the core changes as well as the
remaining pieces for arm64 (LTO has been the default build method on
Android for about 3 years now, as it is the prerequisite for the
Control Flow Integrity protections).
While x86 LTO enablement is done, it depends on some pending objtool
clean-ups. It's possible that I'll send a "part 2" pull request for
LTO that includes x86 support.
For merge log posterity, and as detailed in commit dc5723b02e
("kbuild: add support for Clang LTO"), here is the lt;dr to do an LTO
build:
make LLVM=1 LLVM_IAS=1 defconfig
scripts/config -e LTO_CLANG_THIN
make LLVM=1 LLVM_IAS=1
(To do a cross-compile of arm64, add "CROSS_COMPILE=aarch64-linux-gnu-"
and "ARCH=arm64" to the "make" command lines.)
Summary:
- Clang LTO build infrastructure and arm64-specific enablement (Sami
Tolvanen)
- Recursive build CC_FLAGS_LTO fix (Alexander Lobakin)"
* tag 'clang-lto-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
kbuild: prevent CC_FLAGS_LTO self-bloating on recursive rebuilds
arm64: allow LTO to be selected
arm64: disable recordmcount with DYNAMIC_FTRACE_WITH_REGS
arm64: vdso: disable LTO
drivers/misc/lkdtm: disable LTO for rodata.o
efi/libstub: disable LTO
scripts/mod: disable LTO for empty.c
modpost: lto: strip .lto from module names
PCI: Fix PREL32 relocations for LTO
init: lto: fix PREL32 relocations
init: lto: ensure initcall ordering
kbuild: lto: add a default list of used symbols
kbuild: lto: merge module sections
kbuild: lto: limit inlining
kbuild: lto: fix module versioning
kbuild: add support for Clang LTO
tracing: move function tracer options to Kconfig
- Add support for eMMC inline encryption
- Add a helper function to parse DT properties for clock phases
- Some improvements and cleanups for the mmc_test module
MMC host:
- android-goldfish: Remove driver
- cqhci: Add support for eMMC inline encryption
- dw_mmc-zx: Remove driver
- meson-gx: Extend support for scatter-gather to allow SD_IO_RW_EXTENDED
- mmci: Add support for probing bus voltage level translator
- mtk-sd: Address race condition for request timeouts
- sdhci_am654: Add Support for the variant on TI's AM64 SoC
- sdhci-esdhc-imx: Prevent kernel panic at ->remove()
- sdhci-iproc: Add ACPI bindings for the RPi to enable SD and WiFi on RPi4
- sdhci-msm: Add Inline Crypto Engine support
- sdhci-msm: Use actual_clock to improve timeout calculations
- sdhci-of-aspeed: Add Andrew Jeffery as maintainer
- sdhci-of-aspeed: Extend clock support for the AST2600 variant
- sdhci-pci-gli: Increase idle period for low power state for GL9763E
- sdhci-pci-o2micro: Make tuning for SDR104 HW more robust
- sdhci-sirf: Remove driver
- sdhci-xenon: Add support for the AP807 variant
- sunxi-mmc: Add support for the A100 variant
- sunxi-mmc: Ensure host is suspended during system sleep
- tmio: Add detection of data timeout errors
- tmio/renesas_sdhi: Extend support for retuning
- renesas_sdhi_internal_dmac: Add support for the ->pre|post_req() ops
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Merge tag 'mmc-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Add support for eMMC inline encryption
- Add a helper function to parse DT properties for clock phases
- Some improvements and cleanups for the mmc_test module
MMC host:
- android-goldfish: Remove driver
- cqhci: Add support for eMMC inline encryption
- dw_mmc-zx: Remove driver
- meson-gx: Extend support for scatter-gather to allow SD_IO_RW_EXTENDED
- mmci: Add support for probing bus voltage level translator
- mtk-sd: Address race condition for request timeouts
- sdhci_am654: Add Support for the variant on TI's AM64 SoC
- sdhci-esdhc-imx: Prevent kernel panic at ->remove()
- sdhci-iproc: Add ACPI bindings for the RPi to enable SD and WiFi on RPi4
- sdhci-msm: Add Inline Crypto Engine support
- sdhci-msm: Use actual_clock to improve timeout calculations
- sdhci-of-aspeed: Add Andrew Jeffery as maintainer
- sdhci-of-aspeed: Extend clock support for the AST2600 variant
- sdhci-pci-gli: Increase idle period for low power state for GL9763E
- sdhci-pci-o2micro: Make tuning for SDR104 HW more robust
- sdhci-sirf: Remove driver
- sdhci-xenon: Add support for the AP807 variant
- sunxi-mmc: Add support for the A100 variant
- sunxi-mmc: Ensure host is suspended during system sleep
- tmio: Add detection of data timeout errors
- tmio/renesas_sdhi: Extend support for retuning
- renesas_sdhi_internal_dmac: Add support for the ->pre|post_req() ops"
* tag 'mmc-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (86 commits)
mmc: sdhci-esdhc-imx: fix kernel panic when remove module
mmc: host: Retire MMC_GOLDFISH
mmc: cb710: Use new tasklet API
mmc: sdhci-pci-o2micro: Bug fix for SDR104 HW tuning failure
mmc: mmc_test: use erase_arg for mmc_erase command
mmc: wbsd: Use new tasklet API
mmc: via-sdmmc: Use new tasklet API
mmc: uniphier-sd: Use new tasklet API
mmc: tifm_sd: Use new tasklet API
mmc: s3cmci: Use new tasklet API
mmc: omap: Use new tasklet API
mmc: dw_mmc: Use new tasklet API
mmc: au1xmmc: Use new tasklet API
mmc: atmel-mci: Use new tasklet API
mmc: cavium: Replace spin_lock_irqsave with spin_lock in hard IRQ
mmc: queue: Remove unused define
mmc: core: Drop redundant bouncesz from struct mmc_card
mmc: core: Drop redundant member in struct mmc host
mmc: core: Use host instead of card argument to mmc_spi_send_csd()
mmc: core: Exclude unnecessary header file
...
- vDSO build improvements including support for building with BSD.
- Cleanup to the AMU support code and initialisation rework to support
cpufreq drivers built as modules.
- Removal of synthetic frame record from exception stack when entering
the kernel from EL0.
- Add support for the TRNG firmware call introduced by Arm spec
DEN0098.
- Cleanup and refactoring across the board.
- Avoid calling arch_get_random_seed_long() from
add_interrupt_randomness()
- Perf and PMU updates including support for Cortex-A78 and the v8.3
SPE extensions.
- Significant steps along the road to leaving the MMU enabled during
kexec relocation.
- Faultaround changes to initialise prefaulted PTEs as 'old' when
hardware access-flag updates are supported, which drastically
improves vmscan performance.
- CPU errata updates for Cortex-A76 (#1463225) and Cortex-A55
(#1024718)
- Preparatory work for yielding the vector unit at a finer granularity
in the crypto code, which in turn will one day allow us to defer
softirq processing when it is in use.
- Support for overriding CPU ID register fields on the command-line.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
- vDSO build improvements including support for building with BSD.
- Cleanup to the AMU support code and initialisation rework to support
cpufreq drivers built as modules.
- Removal of synthetic frame record from exception stack when entering
the kernel from EL0.
- Add support for the TRNG firmware call introduced by Arm spec
DEN0098.
- Cleanup and refactoring across the board.
- Avoid calling arch_get_random_seed_long() from
add_interrupt_randomness()
- Perf and PMU updates including support for Cortex-A78 and the v8.3
SPE extensions.
- Significant steps along the road to leaving the MMU enabled during
kexec relocation.
- Faultaround changes to initialise prefaulted PTEs as 'old' when
hardware access-flag updates are supported, which drastically
improves vmscan performance.
- CPU errata updates for Cortex-A76 (#1463225) and Cortex-A55
(#1024718)
- Preparatory work for yielding the vector unit at a finer granularity
in the crypto code, which in turn will one day allow us to defer
softirq processing when it is in use.
- Support for overriding CPU ID register fields on the command-line.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (85 commits)
drivers/perf: Replace spin_lock_irqsave to spin_lock
mm: filemap: Fix microblaze build failure with 'mmu_defconfig'
arm64: Make CPU_BIG_ENDIAN depend on ld.bfd or ld.lld 13.0.0+
arm64: cpufeatures: Allow disabling of Pointer Auth from the command-line
arm64: Defer enabling pointer authentication on boot core
arm64: cpufeatures: Allow disabling of BTI from the command-line
arm64: Move "nokaslr" over to the early cpufeature infrastructure
KVM: arm64: Document HVC_VHE_RESTART stub hypercall
arm64: Make kvm-arm.mode={nvhe, protected} an alias of id_aa64mmfr1.vh=0
arm64: Add an aliasing facility for the idreg override
arm64: Honor VHE being disabled from the command-line
arm64: Allow ID_AA64MMFR1_EL1.VH to be overridden from the command line
arm64: cpufeature: Add an early command-line cpufeature override facility
arm64: Extract early FDT mapping from kaslr_early_init()
arm64: cpufeature: Use IDreg override in __read_sysreg_by_encoding()
arm64: cpufeature: Add global feature override facility
arm64: Move SCTLR_EL1 initialisation to EL-agnostic code
arm64: Simplify init_el2_state to be non-VHE only
arm64: Move VHE-specific SPE setup to mutate_to_vhe()
arm64: Drop early setting of MDSCR_EL2.TPMS
...
A few cleanups left and right, some of which were part of a initrd
measured boot series that needs some more work, and so only the cleanup
patches have been included for this release.
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Merge tag 'efi-next-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ard Biesheuvel via Borislav Petkov:
"A few cleanups left and right, some of which were part of a initrd
measured boot series that needs some more work, and so only the
cleanup patches have been included for this release"
* tag 'efi-next-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/arm64: Update debug prints to reflect other entropy sources
efi: x86: clean up previous struct mm switching
efi: x86: move mixed mode stack PA variable out of 'efi_scratch'
efi/libstub: move TPM related prototypes into efistub.h
efi/libstub: fix prototype of efi_tcg2_protocol::get_event_log()
efi/libstub: whitespace cleanup
efi: ia64: move IA64-only declarations to new asm/efi.h header
Updates for SoC specific drivers include a few subsystems that
have their own maintainers but send them through the soc tree:
SCMI firmware:
- add support for a completion interrupt
Reset controllers:
- new driver for BCM4908
- new devm_reset_control_get_optional_exclusive_released()
function
Memory controllers:
- Renesas RZ/G2 support
- Tegra124 interconnect support
- Allow more drivers to be loadable modules
TEE/optee firmware:
- minor code cleanup
The other half of this is SoC specific drivers that do not
belong into any other subsystem, most of them living in
drivers/soc:
- Allwinner/sunxi power management work
- Allwinner H616 support
- ASpeed AST2600 system identification support
- AT91 SAMA7G5 SoC ID driver
- AT91 SoC driver cleanups
- Broadcom BCM4908 power management bus support
- Marvell mbus cleanups
- Mediatek MT8167 power domain support
- Qualcomm socinfo driver support for PMIC
- Qualcomm SoC identification for many more products
- TI Keystone driver cleanups for PRUSS and elsewhere
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"Updates for SoC specific drivers include a few subsystems that have
their own maintainers but send them through the soc tree:
SCMI firmware:
- add support for a completion interrupt
Reset controllers:
- new driver for BCM4908
- new devm_reset_control_get_optional_exclusive_released() function
Memory controllers:
- Renesas RZ/G2 support
- Tegra124 interconnect support
- Allow more drivers to be loadable modules
TEE/optee firmware:
- minor code cleanup
The other half of this is SoC specific drivers that do not belong into
any other subsystem, most of them living in drivers/soc:
- Allwinner/sunxi power management work
- Allwinner H616 support
- ASpeed AST2600 system identification support
- AT91 SAMA7G5 SoC ID driver
- AT91 SoC driver cleanups
- Broadcom BCM4908 power management bus support
- Marvell mbus cleanups
- Mediatek MT8167 power domain support
- Qualcomm socinfo driver support for PMIC
- Qualcomm SoC identification for many more products
- TI Keystone driver cleanups for PRUSS and elsewhere"
* tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (89 commits)
soc: aspeed: socinfo: Add new systems
soc: aspeed: snoop: Add clock control logic
memory: tegra186-emc: Replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
memory: samsung: exynos5422-dmc: Correct function names in kerneldoc
memory: ti-emif-pm: Drop of_match_ptr from of_device_id table
optee: simplify i2c access
drivers: soc: atmel: fix type for same7
tee: optee: remove need_resched() before cond_resched()
soc: qcom: ocmem: don't return NULL in of_get_ocmem
optee: sync OP-TEE headers
tee: optee: fix 'physical' typos
drivers: optee: use flexible-array member instead of zero-length array
tee: fix some comment typos in header files
soc: ti: k3-ringacc: Use of_device_get_match_data()
soc: ti: pruss: Refactor the CFG sub-module init
soc: mediatek: pm-domains: Don't print an error if child domain is deferred
soc: mediatek: pm-domains: Add domain regulator supply
dt-bindings: power: Add domain regulator supply
soc: mediatek: cmdq: Remove cmdq_pkt_flush()
soc: mediatek: pm-domains: Add support for mt8167
...
All coreboot drivers return 0 unconditionally in their remove callback.
Also the device core ignores the return value of the struct
bus_type::remove(), so make the coreboot remove callback return void
instead of giving driver authors the illusion they could return an error
code here.
All drivers are adapted accordingly.
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20210126215339.706021-1-uwe@kleine-koenig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The SCM calls QCOM_SCM_ES_INVALIDATE_ICE_KEY and
QCOM_SCM_ES_CONFIG_SET_ICE_KEY are also needed for eMMC inline
encryption support, not just for UFS. Update the comments accordingly.
Reviewed-by: Satya Tangirala <satyat@google.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20210125183810.198008-7-ebiggers@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
- handle boolean device properties imported from Apple firmware
correctly.
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Merge tag 'efi-urgent-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Borislav Petkov:
"A single fix from Lukas: handle boolean device properties imported
from Apple firmware correctly"
* tag 'efi-urgent-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/apple-properties: Reinstate support for boolean properties
The ARM DEN0098 document describe an SMCCC based firmware service to
deliver hardware generated random numbers. Its existence is advertised
according to the SMCCC v1.1 specification.
Add a (dummy) call to probe functions implemented in each architecture
(ARM and arm64), to determine the existence of this interface.
For now this return false, but this will be overwritten by each
architecture's support patch.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Currently the EFI stub prints a diagnostic on boot saying that KASLR will
be disabled if it is unable to use the EFI RNG protocol to obtain a seed
for KASLR. With the addition of support for v8.5-RNG and the SMCCC RNG
protocol it is now possible for KASLR to obtain entropy even if the EFI
RNG protocol is unsupported in the system, and the main kernel now
explicitly says if KASLR is active itself. This can result in a boot
log where the stub says KASLR has been disabled and the main kernel says
that it is enabled which is confusing for users.
Remove the explicit reference to KASLR from the diagnostics, the warnings
are still useful as EFI is the only source of entropy the stub uses when
randomizing the physical address of the kernel and the other sources may
not be available.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210120163810.14973-1-broonie@kernel.org
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Move TPM related definitions that are only used in the EFI stub into
efistub.h, which is a local header.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
With CONFIG_LTO_CLANG, we produce LLVM bitcode instead of ELF object
files. Since LTO is not really needed here and the Makefile assumes we
produce an object file, disable LTO for libstub.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201211184633.3213045-13-samitolvanen@google.com
The SMC/HVC SCMI transport is modified to allow the completion of an
SCMI message to be indicated by an interrupt rather than the return of
the smc/hvc call. This accommodates the existing behavior of the
BrcmSTB SCMI "platform".
Link: https://lore.kernel.org/r/20201222145603.40192-3-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
[sudeep.holla: added call to reinit_completion, whitespace cleanup, dropped
irrelavant info in the commit log]
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Since commit 4466bf8282 ("efi/apple-properties: use
PROPERTY_ENTRY_U8_ARRAY_LEN"), my MacBook Pro issues a -ENODATA error
when trying to assign EFI properties to the discrete GPU:
pci 0000:01:00.0: assigning 56 device properties
pci 0000:01:00.0: error -61 assigning properties
That's because some of the properties have no value. They're booleans
whose presence can be checked by drivers, e.g. "use-backlight-blanking".
Commit 6e98503dba ("efi/apple-properties: Remove redundant attribute
initialization from unmarshal_key_value_pairs()") employed a trick to
store such booleans as u8 arrays (which is the data type used for all
other EFI properties on Macs): It cleared the property_entry's
"is_array" flag, thereby denoting that the value is stored inline in the
property_entry.
Commit 4466bf8282 erroneously removed that trick. It was probably a
little fragile to begin with.
Reinstate support for boolean properties by explicitly invoking the
PROPERTY_ENTRY_BOOL() initializer for properties with zero-length value.
Fixes: 4466bf8282 ("efi/apple-properties: use PROPERTY_ENTRY_U8_ARRAY_LEN")
Cc: <stable@vger.kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/be958bda75331a011d53c696d1deec8dccd06fd2.1609388549.git.lukas@wunner.de
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
- Don't move BSS section around pointlessly in the x86 decompressor
- Refactor helper for discovering the EFI secure boot mode
- Wire up EFI secure boot to IMA for arm64
- Some fixes for the capsule loader
- Expose the RT_PROP table via the EFI test module
- Relax DT and kernel placement restrictions on ARM
+ followup fixes:
- fix the build breakage on IA64 caused by recent capsule loader changes
- suppress a type mismatch build warning in the expansion of
EFI_PHYS_ALIGN on ARM
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Merge tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Borislav Petkov:
"These got delayed due to a last minute ia64 build issue which got
fixed in the meantime.
EFI updates collected by Ard Biesheuvel:
- Don't move BSS section around pointlessly in the x86 decompressor
- Refactor helper for discovering the EFI secure boot mode
- Wire up EFI secure boot to IMA for arm64
- Some fixes for the capsule loader
- Expose the RT_PROP table via the EFI test module
- Relax DT and kernel placement restrictions on ARM
with a few followup fixes:
- fix the build breakage on IA64 caused by recent capsule loader
changes
- suppress a type mismatch build warning in the expansion of
EFI_PHYS_ALIGN on ARM"
* tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: arm: force use of unsigned type for EFI_PHYS_ALIGN
efi: ia64: disable the capsule loader
efi: stub: get rid of efi_get_max_fdt_addr()
efi/efi_test: read RuntimeServicesSupported
efi: arm: reduce minimum alignment of uncompressed kernel
efi: capsule: clean scatter-gather entries from the D-cache
efi: capsule: use atomic kmap for transient sglist mappings
efi: x86/xen: switch to efi_get_secureboot_mode helper
arm64/ima: add ima_arch support
ima: generalize x86/EFI arch glue for other EFI architectures
efi: generalize efi_get_secureboot
efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes
efi/x86: Only copy the compressed kernel image in efi_relocate_kernel()
efi/libstub/x86: simplify efi_is_native()
* PSCI relay at EL2 when "protected KVM" is enabled
* New exception injection code
* Simplification of AArch32 system register handling
* Fix PMU accesses when no PMU is enabled
* Expose CSV3 on non-Meltdown hosts
* Cache hierarchy discovery fixes
* PV steal-time cleanups
* Allow function pointers at EL2
* Various host EL2 entry cleanups
* Simplification of the EL2 vector allocation
s390:
* memcg accouting for s390 specific parts of kvm and gmap
* selftest for diag318
* new kvm_stat for when async_pf falls back to sync
x86:
* Tracepoints for the new pagetable code from 5.10
* Catch VFIO and KVM irqfd events before userspace
* Reporting dirty pages to userspace with a ring buffer
* SEV-ES host support
* Nested VMX support for wait-for-SIPI activity state
* New feature flag (AVX512 FP16)
* New system ioctl to report Hyper-V-compatible paravirtualization features
Generic:
* Selftest improvements
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"Much x86 work was pushed out to 5.12, but ARM more than made up for it.
ARM:
- PSCI relay at EL2 when "protected KVM" is enabled
- New exception injection code
- Simplification of AArch32 system register handling
- Fix PMU accesses when no PMU is enabled
- Expose CSV3 on non-Meltdown hosts
- Cache hierarchy discovery fixes
- PV steal-time cleanups
- Allow function pointers at EL2
- Various host EL2 entry cleanups
- Simplification of the EL2 vector allocation
s390:
- memcg accouting for s390 specific parts of kvm and gmap
- selftest for diag318
- new kvm_stat for when async_pf falls back to sync
x86:
- Tracepoints for the new pagetable code from 5.10
- Catch VFIO and KVM irqfd events before userspace
- Reporting dirty pages to userspace with a ring buffer
- SEV-ES host support
- Nested VMX support for wait-for-SIPI activity state
- New feature flag (AVX512 FP16)
- New system ioctl to report Hyper-V-compatible paravirtualization features
Generic:
- Selftest improvements"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits)
KVM: SVM: fix 32-bit compilation
KVM: SVM: Add AP_JUMP_TABLE support in prep for AP booting
KVM: SVM: Provide support to launch and run an SEV-ES guest
KVM: SVM: Provide an updated VMRUN invocation for SEV-ES guests
KVM: SVM: Provide support for SEV-ES vCPU loading
KVM: SVM: Provide support for SEV-ES vCPU creation/loading
KVM: SVM: Update ASID allocation to support SEV-ES guests
KVM: SVM: Set the encryption mask for the SVM host save area
KVM: SVM: Add NMI support for an SEV-ES guest
KVM: SVM: Guest FPU state save/restore not needed for SEV-ES guest
KVM: SVM: Do not report support for SMM for an SEV-ES guest
KVM: x86: Update __get_sregs() / __set_sregs() to support SEV-ES
KVM: SVM: Add support for CR8 write traps for an SEV-ES guest
KVM: SVM: Add support for CR4 write traps for an SEV-ES guest
KVM: SVM: Add support for CR0 write traps for an SEV-ES guest
KVM: SVM: Add support for EFER write traps for an SEV-ES guest
KVM: SVM: Support string IO operations for an SEV-ES guest
KVM: SVM: Support MMIO for an SEV-ES guest
KVM: SVM: Create trace events for VMGEXIT MSR protocol processing
KVM: SVM: Create trace events for VMGEXIT processing
...
There are a couple of subsystems maintained by other people that
merge their drivers through the SoC tree, those changes include:
- The SCMI firmware framework gains support for sensor notifications
and for controlling voltage domains.
- A large update for the Tegra memory controller driver, integrating
it better with the interconnect framework
- The memory controller subsystem gains support for Mediatek MT8192
- The reset controller framework gains support for sharing pulsed
resets
For Soc specific drivers in drivers/soc, the main changes are
- The Allwinner/sunxi MBUS gets a rework for the way it handles
dma_map_ops and offsets between physical and dma address spaces.
- An errata fix plus some cleanups for Freescale Layerscape SoCs
- A cleanup for renesas drivers regarding MMIO accesses.
- New SoC specific drivers for Mediatek MT8192 and MT8183 power domains
- New SoC specific drivers for Aspeed AST2600 LPC bus control
and SoC identification.
- Core Power Domain support for Qualcomm MSM8916, MSM8939, SDM660
and SDX55.
- A rework of the TI AM33xx 'genpd' power domain support to use
information from DT instead of platform data
- Support for TI AM64x SoCs
- Allow building some Amlogic drivers as modules instead of built-in
Finally, there are numerous cleanups and smaller bug fixes for
Mediatek, Tegra, Samsung, Qualcomm, TI OMAP, Amlogic, Rockchips,
Renesas, and Xilinx SoCs.
There is a trivial conflict in the cedrus driver, with two branches
adding the same CEDRUS_CAPABILITY_H265_DEC flag, and another trivial
remove/remove conflict in linux/dma-mapping.h.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"There are a couple of subsystems maintained by other people that merge
their drivers through the SoC tree, those changes include:
- The SCMI firmware framework gains support for sensor notifications
and for controlling voltage domains.
- A large update for the Tegra memory controller driver, integrating
it better with the interconnect framework
- The memory controller subsystem gains support for Mediatek MT8192
- The reset controller framework gains support for sharing pulsed
resets
For Soc specific drivers in drivers/soc, the main changes are
- The Allwinner/sunxi MBUS gets a rework for the way it handles
dma_map_ops and offsets between physical and dma address spaces.
- An errata fix plus some cleanups for Freescale Layerscape SoCs
- A cleanup for renesas drivers regarding MMIO accesses.
- New SoC specific drivers for Mediatek MT8192 and MT8183 power
domains
- New SoC specific drivers for Aspeed AST2600 LPC bus control and SoC
identification.
- Core Power Domain support for Qualcomm MSM8916, MSM8939, SDM660 and
SDX55.
- A rework of the TI AM33xx 'genpd' power domain support to use
information from DT instead of platform data
- Support for TI AM64x SoCs
- Allow building some Amlogic drivers as modules instead of built-in
Finally, there are numerous cleanups and smaller bug fixes for
Mediatek, Tegra, Samsung, Qualcomm, TI OMAP, Amlogic, Rockchips,
Renesas, and Xilinx SoCs"
* tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (222 commits)
soc: mediatek: mmsys: Specify HAS_IOMEM dependency for MTK_MMSYS
firmware: xilinx: Properly align function parameter
firmware: xilinx: Add a blank line after function declaration
firmware: xilinx: Remove additional newline
firmware: xilinx: Fix kernel-doc warnings
firmware: xlnx-zynqmp: fix compilation warning
soc: xilinx: vcu: add missing register NUM_CORE
soc: xilinx: vcu: use vcu-settings syscon registers
dt-bindings: soc: xlnx: extract xlnx, vcu-settings to separate binding
soc: xilinx: vcu: drop useless success message
clk: samsung: mark PM functions as __maybe_unused
soc: samsung: exynos-chipid: initialize later - with arch_initcall
soc: samsung: exynos-chipid: order list of SoCs by name
memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()
memory: ti-emif-sram: only build for ARMv7
memory: tegra30: Support interconnect framework
memory: tegra20: Support hardware versioning and clean up OPP table initialization
dt-bindings: memory: tegra20-emc: Document opp-supported-hw property
soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe()
reset-controller: ti: force the write operation when assert or deassert
...
- Use local_clock() instead of jiffies in the cpufreq statistics to
improve accuracy (Viresh Kumar).
- Fix up OPP usage in the cpufreq-dt and qcom-cpufreq-nvmem cpufreq
drivers (Viresh Kumar).
- Clean up the cpufreq core, the intel_pstate driver and the
schedutil cpufreq governor (Rafael Wysocki).
- Fix up error code paths in the sti-cpufreq and mediatek cpufreq
drivers (Yangtao Li, Qinglang Miao).
- Fix cpufreq_online() to return error codes instead of success (0)
in all cases when it fails (Wang ShaoBo).
- Add mt8167 support to the mediatek cpufreq driver and blacklist
mt8516 in the cpufreq-dt-platdev driver (Fabien Parent).
- Modify the tegra194 cpufreq driver to always return values from
the frequency table as the current frequency and clean up that
driver (Sumit Gupta, Jon Hunter).
- Modify the arm_scmi cpufreq driver to allow it to discover the
power scale present in the performance protocol and provide this
information to the Energy Model (Lukasz Luba).
- Add missing MODULE_DEVICE_TABLE to several cpufreq drivers (Pali
Rohár).
- Clean up the CPPC cpufreq driver (Ionela Voinescu).
- Fix NVMEM_IMX_OCOTP dependency in the imx cpufreq driver (Arnd
Bergmann).
- Rework the poling interval selection for the polling state in
cpuidle (Mel Gorman).
- Enable suspend-to-idle for PSCI OSI mode in the PSCI cpuidle
driver (Ulf Hansson).
- Modify the OPP framework to support empty (node-less) OPP tables
in DT for passing dependency information (Nicola Mazzucato).
- Fix potential lockdep issue in the OPP core and clean up the OPP
core (Viresh Kumar).
- Modify dev_pm_opp_put_regulators() to accept a NULL argument and
update its users accordingly (Viresh Kumar).
- Add frequency changes tracepoint to devfreq (Matthias Kaehlcke).
- Add support for governor feature flags to devfreq, make devfreq
sysfs file permissions depend on the governor and clean up the
devfreq core (Chanwoo Choi).
- Clean up the tegra20 devfreq driver and deprecate it to allow
another driver based on EMC_STAT to be used instead of it (Dmitry
Osipenko).
- Add interconnect support to the tegra30 devfreq driver, allow it
to take the interconnect and OPP information from DT and clean it
up ((Dmitry Osipenko).
- Add interconnect support to the exynos-bus devfreq driver along
with interconnect properties documentation (Sylwester Nawrocki).
- Add suport for AMD Fam17h and Fam19h processors to the RAPL power
capping driver (Victor Ding, Kim Phillips).
- Fix handling of overly long constraint names in the powercap
framework (Lukasz Luba).
- Fix the wakeup configuration handling for bridges in the ACPI
device power management core (Rafael Wysocki).
- Add support for using an abstract scale for power units in the
Energy Model (EM) and document it (Lukasz Luba).
- Add em_cpu_energy() micro-optimization to the EM (Pavankumar
Kondeti).
- Modify the generic power domains (genpd) framwework to support
suspend-to-idle (Ulf Hansson).
- Fix creation of debugfs nodes in genpd (Thierry Strudel).
- Clean up genpd (Lina Iyer).
- Clean up the core system-wide suspend code and make it print
driver flags for devices with debug enabled (Alex Shi, Patrice
Chotard, Chen Yu).
- Modify the ACPI system reboot code to make it prepare for system
power off to avoid confusing the platform firmware (Kai-Heng Feng).
- Update the pm-graph (multiple changes, mostly usability-related)
and cpupower (online and offline CPU information support) PM
utilities (Todd Brandt, Brahadambal Srinivasan).
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Merge tag 'pm-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These update cpufreq (core and drivers), cpuidle (polling state
implementation and the PSCI driver), the OPP (operating performance
points) framework, devfreq (core and drivers), the power capping RAPL
(Running Average Power Limit) driver, the Energy Model support, the
generic power domains (genpd) framework, the ACPI device power
management, the core system-wide suspend code and power management
utilities.
Specifics:
- Use local_clock() instead of jiffies in the cpufreq statistics to
improve accuracy (Viresh Kumar).
- Fix up OPP usage in the cpufreq-dt and qcom-cpufreq-nvmem cpufreq
drivers (Viresh Kumar).
- Clean up the cpufreq core, the intel_pstate driver and the
schedutil cpufreq governor (Rafael Wysocki).
- Fix up error code paths in the sti-cpufreq and mediatek cpufreq
drivers (Yangtao Li, Qinglang Miao).
- Fix cpufreq_online() to return error codes instead of success (0)
in all cases when it fails (Wang ShaoBo).
- Add mt8167 support to the mediatek cpufreq driver and blacklist
mt8516 in the cpufreq-dt-platdev driver (Fabien Parent).
- Modify the tegra194 cpufreq driver to always return values from the
frequency table as the current frequency and clean up that driver
(Sumit Gupta, Jon Hunter).
- Modify the arm_scmi cpufreq driver to allow it to discover the
power scale present in the performance protocol and provide this
information to the Energy Model (Lukasz Luba).
- Add missing MODULE_DEVICE_TABLE to several cpufreq drivers (Pali
Rohár).
- Clean up the CPPC cpufreq driver (Ionela Voinescu).
- Fix NVMEM_IMX_OCOTP dependency in the imx cpufreq driver (Arnd
Bergmann).
- Rework the poling interval selection for the polling state in
cpuidle (Mel Gorman).
- Enable suspend-to-idle for PSCI OSI mode in the PSCI cpuidle driver
(Ulf Hansson).
- Modify the OPP framework to support empty (node-less) OPP tables in
DT for passing dependency information (Nicola Mazzucato).
- Fix potential lockdep issue in the OPP core and clean up the OPP
core (Viresh Kumar).
- Modify dev_pm_opp_put_regulators() to accept a NULL argument and
update its users accordingly (Viresh Kumar).
- Add frequency changes tracepoint to devfreq (Matthias Kaehlcke).
- Add support for governor feature flags to devfreq, make devfreq
sysfs file permissions depend on the governor and clean up the
devfreq core (Chanwoo Choi).
- Clean up the tegra20 devfreq driver and deprecate it to allow
another driver based on EMC_STAT to be used instead of it (Dmitry
Osipenko).
- Add interconnect support to the tegra30 devfreq driver, allow it to
take the interconnect and OPP information from DT and clean it up
(Dmitry Osipenko).
- Add interconnect support to the exynos-bus devfreq driver along
with interconnect properties documentation (Sylwester Nawrocki).
- Add suport for AMD Fam17h and Fam19h processors to the RAPL power
capping driver (Victor Ding, Kim Phillips).
- Fix handling of overly long constraint names in the powercap
framework (Lukasz Luba).
- Fix the wakeup configuration handling for bridges in the ACPI
device power management core (Rafael Wysocki).
- Add support for using an abstract scale for power units in the
Energy Model (EM) and document it (Lukasz Luba).
- Add em_cpu_energy() micro-optimization to the EM (Pavankumar
Kondeti).
- Modify the generic power domains (genpd) framwework to support
suspend-to-idle (Ulf Hansson).
- Fix creation of debugfs nodes in genpd (Thierry Strudel).
- Clean up genpd (Lina Iyer).
- Clean up the core system-wide suspend code and make it print driver
flags for devices with debug enabled (Alex Shi, Patrice Chotard,
Chen Yu).
- Modify the ACPI system reboot code to make it prepare for system
power off to avoid confusing the platform firmware (Kai-Heng Feng).
- Update the pm-graph (multiple changes, mostly usability-related)
and cpupower (online and offline CPU information support) PM
utilities (Todd Brandt, Brahadambal Srinivasan)"
* tag 'pm-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits)
cpufreq: Fix cpufreq_online() return value on errors
cpufreq: Fix up several kerneldoc comments
cpufreq: stats: Use local_clock() instead of jiffies
cpufreq: schedutil: Simplify sugov_update_next_freq()
cpufreq: intel_pstate: Simplify intel_cpufreq_update_pstate()
PM: domains: create debugfs nodes when adding power domains
opp: of: Allow empty opp-table with opp-shared
dt-bindings: opp: Allow empty OPP tables
media: venus: dev_pm_opp_put_*() accepts NULL argument
drm/panfrost: dev_pm_opp_put_*() accepts NULL argument
drm/lima: dev_pm_opp_put_*() accepts NULL argument
PM / devfreq: exynos: dev_pm_opp_put_*() accepts NULL argument
cpufreq: qcom-cpufreq-nvmem: dev_pm_opp_put_*() accepts NULL argument
cpufreq: dt: dev_pm_opp_put_regulators() accepts NULL argument
opp: Allow dev_pm_opp_put_*() APIs to accept NULL opp_table
opp: Don't create an OPP table from dev_pm_opp_get_opp_table()
cpufreq: dt: Don't (ab)use dev_pm_opp_get_opp_table() to create OPP table
opp: Reduce the size of critical section in _opp_kref_release()
PM / EM: Micro optimization in em_cpu_energy
cpufreq: arm_scmi: Discover the power scale in performance protocol
...
This has been a quiet release for the regulator API, a few new drivers
and the usual fixes and cleanup traffic but not much else going on:
- Optimisations for the handling of voltage enumeration, especially
with sparse selector sets, from Claudiu Beznea.
- Support for several ARM SCMI regulators, Dialog DA9121, NXP PF8x00,
Qualcomm PMX55, PM8350 and PM8350c
The addition of the SCMI regulator driver (which controls regulators via
system firmware) means that we've pulled in the support for the underlying
firmware operations from the firmware tree.
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Merge tag 'regulator-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This has been a quiet release for the regulator API, a few new drivers
and the usual fixes and cleanup traffic but not much else going on:
- Optimisations for the handling of voltage enumeration, especially
with sparse selector sets, from Claudiu Beznea.
- Support for several ARM SCMI regulators, Dialog DA9121, NXP PF8x00,
Qualcomm PMX55, PM8350 and PM8350c
The addition of the SCMI regulator driver (which controls regulators
via system firmware) means that we've pulled in the support for the
underlying firmware operations from the firmware tree"
* tag 'regulator-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (53 commits)
regulator: mc13892-regulator: convert comma to semicolon
regulator: pfuze100: Convert the driver to DT-only
regulator: max14577: Add proper module aliases strings
regulator: da9121: Potential Oops in da9121_assign_chip_model()
regulator: da9121: Fix index used for DT property
regulator: da9121: Remove uninitialised string variable
regulator: axp20x: Fix DLDO2 voltage control register mask for AXP22x
regulator: qcom-rpmh: Add support for PM8350/PM8350c
regulator: dt-bindings: Add PM8350x compatibles
regulator: da9121: include linux/gpio/consumer.h
regulator: da9121: Mark some symbols with static keyword
regulator: da9121: Request IRQ directly and free in release function to avoid masking race
regulator: da9121: add interrupt support
regulator: da9121: add mode support
regulator: da9121: add current support
regulator: da9121: Update registration to support multiple buck variants
regulator: da9121: Add support for device variants via devicetree
regulator: da9121: Add device variant descriptors
regulator: da9121: Add device variant regmaps
regulator: da9121: Add device variants
...
Here is the big char/misc driver update for 5.11-rc1.
Continuing the tradition of previous -rc1 pulls, there seems to be more
and more tiny driver subsystems flowing through this tree.
Lots of different things, all of which have been in linux-next for a
while with no reported issues:
- extcon driver updates
- habannalab driver updates
- mei driver updates
- uio driver updates
- binder fixes and features added
- soundwire driver updates
- mhi bus driver updates
- phy driver updates
- coresight driver updates
- fpga driver updates
- speakup driver updates
- slimbus driver updates
- various small char and misc driver updates
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver updates from Greg KH:
"Here is the big char/misc driver update for 5.11-rc1.
Continuing the tradition of previous -rc1 pulls, there seems to be
more and more tiny driver subsystems flowing through this tree.
Lots of different things, all of which have been in linux-next for a
while with no reported issues:
- extcon driver updates
- habannalab driver updates
- mei driver updates
- uio driver updates
- binder fixes and features added
- soundwire driver updates
- mhi bus driver updates
- phy driver updates
- coresight driver updates
- fpga driver updates
- speakup driver updates
- slimbus driver updates
- various small char and misc driver updates"
* tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (305 commits)
extcon: max77693: Fix modalias string
extcon: fsa9480: Support TI TSU6111 variant
extcon: fsa9480: Rewrite bindings in YAML and extend
dt-bindings: extcon: add binding for TUSB320
extcon: Add driver for TI TUSB320
slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
siox: Make remove callback return void
siox: Use bus_type functions for probe, remove and shutdown
spmi: Add driver shutdown support
spmi: fix some coding style issues at the spmi core
spmi: get rid of a warning when built with W=1
uio: uio_hv_generic: use devm_kzalloc() for private data alloc
uio: uio_fsl_elbc_gpcm: use device-managed allocators
uio: uio_aec: use devm_kzalloc() for uio_info object
uio: uio_cif: use devm_kzalloc() for uio_info object
uio: uio_netx: use devm_kzalloc() for or uio_info object
uio: uio_mf624: use devm_kzalloc() for uio_info object
uio: uio_sercos3: use device-managed functions for simple allocs
uio: uio_dmem_genirq: finalize conversion of probe to devm_ handlers
uio: uio_dmem_genirq: convert simple allocations to device-managed
...
Here is the big driver core updates for 5.11-rc1
This time there was a lot of different work happening here for some
reason:
- redo of the fwnode link logic, speeding it up greatly
- auxiliary bus added (this was a tag that will be pulled in
from other trees/maintainers this merge window as well, as
driver subsystems started to rely on it)
- platform driver core cleanups on the way to fixing some
long-time api updates in future releases
- minor fixes and tweaks.
All have been in linux-next with no (finally) reported issues. Testing
there did helped in shaking issues out a lot :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the big driver core updates for 5.11-rc1
This time there was a lot of different work happening here for some
reason:
- redo of the fwnode link logic, speeding it up greatly
- auxiliary bus added (this was a tag that will be pulled in from
other trees/maintainers this merge window as well, as driver
subsystems started to rely on it)
- platform driver core cleanups on the way to fixing some long-time
api updates in future releases
- minor fixes and tweaks.
All have been in linux-next with no (finally) reported issues. Testing
there did helped in shaking issues out a lot :)"
* tag 'driver-core-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (39 commits)
driver core: platform: don't oops in platform_shutdown() on unbound devices
ACPI: Use fwnode_init() to set up fwnode
misc: pvpanic: Replace OF headers by mod_devicetable.h
misc: pvpanic: Combine ACPI and platform drivers
usb: host: sl811: Switch to use platform_get_mem_or_io()
vfio: platform: Switch to use platform_get_mem_or_io()
driver core: platform: Introduce platform_get_mem_or_io()
dyndbg: fix use before null check
soc: fix comment for freeing soc_dev_attr
driver core: platform: use bus_type functions
driver core: platform: change logic implementing platform_driver_probe
driver core: platform: reorder functions
driver core: make driver_probe_device() static
driver core: Fix a couple of typos
driver core: Reorder devices on successful probe
driver core: Delete pointless parameter in fwnode_operations.add_links
driver core: Refactor fw_devlink feature
efi: Update implementation of add_links() to create fwnode links
of: property: Update implementation of add_links() to create fwnode links
driver core: Use device's fwnode to check if it is waiting for suppliers
...
Merge misc updates from Andrew Morton:
- a few random little subsystems
- almost all of the MM patches which are staged ahead of linux-next
material. I'll trickle to post-linux-next work in as the dependents
get merged up.
Subsystems affected by this patch series: kthread, kbuild, ide, ntfs,
ocfs2, arch, and mm (slab-generic, slab, slub, dax, debug, pagecache,
gup, swap, shmem, memcg, pagemap, mremap, hmm, vmalloc, documentation,
kasan, pagealloc, memory-failure, hugetlb, vmscan, z3fold, compaction,
oom-kill, migration, cma, page-poison, userfaultfd, zswap, zsmalloc,
uaccess, zram, and cleanups).
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (200 commits)
mm: cleanup kstrto*() usage
mm: fix fall-through warnings for Clang
mm: slub: convert sysfs sprintf family to sysfs_emit/sysfs_emit_at
mm: shmem: convert shmem_enabled_show to use sysfs_emit_at
mm:backing-dev: use sysfs_emit in macro defining functions
mm: huge_memory: convert remaining use of sprintf to sysfs_emit and neatening
mm: use sysfs_emit for struct kobject * uses
mm: fix kernel-doc markups
zram: break the strict dependency from lzo
zram: add stat to gather incompressible pages since zram set up
zram: support page writeback
mm/process_vm_access: remove redundant initialization of iov_r
mm/zsmalloc.c: rework the list_add code in insert_zspage()
mm/zswap: move to use crypto_acomp API for hardware acceleration
mm/zswap: fix passing zero to 'PTR_ERR' warning
mm/zswap: make struct kernel_param_ops definitions const
userfaultfd/selftests: hint the test runner on required privilege
userfaultfd/selftests: fix retval check for userfaultfd_open()
userfaultfd/selftests: always dump something in modes
userfaultfd: selftests: make __{s,u}64 format specifiers portable
...
Since commit 70e806e4e6 ("mm: Do early cow for pinned pages during
fork() for ptes") pages under a FOLL_PIN will not be write protected
during COW for fork. This means that pages returned from
pin_user_pages(FOLL_WRITE) should not become write protected while the pin
is active.
However, there is a small race where get_user_pages_fast(FOLL_PIN) can
establish a FOLL_PIN at the same time copy_present_page() is write
protecting it:
CPU 0 CPU 1
get_user_pages_fast()
internal_get_user_pages_fast()
copy_page_range()
pte_alloc_map_lock()
copy_present_page()
atomic_read(has_pinned) == 0
page_maybe_dma_pinned() == false
atomic_set(has_pinned, 1);
gup_pgd_range()
gup_pte_range()
pte_t pte = gup_get_pte(ptep)
pte_access_permitted(pte)
try_grab_compound_head()
pte = pte_wrprotect(pte)
set_pte_at();
pte_unmap_unlock()
// GUP now returns with a write protected page
The first attempt to resolve this by using the write protect caused
problems (and was missing a barrrier), see commit f3c64eda3e ("mm: avoid
early COW write protect games during fork()")
Instead wrap copy_p4d_range() with the write side of a seqcount and check
the read side around gup_pgd_range(). If there is a collision then
get_user_pages_fast() fails and falls back to slow GUP.
Slow GUP is safe against this race because copy_page_range() is only
called while holding the exclusive side of the mmap_lock on the src
mm_struct.
[akpm@linux-foundation.org: coding style fixes]
Link: https://lore.kernel.org/r/CAHk-=wi=iCnYCARbPGjkVJu9eyYeZ13N64tZYLdOB8CP5Q_PLw@mail.gmail.com
Link: https://lkml.kernel.org/r/2-v4-908497cf359a+4782-gup_fork_jgg@nvidia.com
Fixes: f3c64eda3e ("mm: avoid early COW write protect games during fork()")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Peter Xu <peterx@redhat.com>
Acked-by: "Ahmed S. Darwish" <a.darwish@linutronix.de> [seqcount_t parts]
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kirill Shutemov <kirill@shutemov.name>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Expose tag address bits in siginfo. The original arm64 ABI did not
expose any of the bits 63:56 of a tagged address in siginfo. In the
presence of user ASAN or MTE, this information may be useful. The
implementation is generic to other architectures supporting tags (like
SPARC ADI, subject to wiring up the arch code). The user will have to
opt in via sigaction(SA_EXPOSE_TAGBITS) so that the extra bits, if
available, become visible in si_addr.
- Default to 32-bit wide ZONE_DMA. Previously, ZONE_DMA was set to the
lowest 1GB to cope with the Raspberry Pi 4 limitations, to the
detriment of other platforms. With these changes, the kernel scans the
Device Tree dma-ranges and the ACPI IORT information before deciding
on a smaller ZONE_DMA.
- Strengthen READ_ONCE() to acquire when CONFIG_LTO=y. When building
with LTO, there is an increased risk of the compiler converting an
address dependency headed by a READ_ONCE() invocation into a control
dependency and consequently allowing for harmful reordering by the
CPU.
- Add CPPC FFH support using arm64 AMU counters.
- set_fs() removal on arm64. This renders the User Access Override (UAO)
ARMv8 feature unnecessary.
- Perf updates: PMU driver for the ARM DMC-620 memory controller, sysfs
identifier file for SMMUv3, stop event counters support for i.MX8MP,
enable the perf events-based hard lockup detector.
- Reorganise the kernel VA space slightly so that 52-bit VA
configurations can use more virtual address space.
- Improve the robustness of the arm64 memory offline event notifier.
- Pad the Image header to 64K following the EFI header definition
updated recently to increase the section alignment to 64K.
- Support CONFIG_CMDLINE_EXTEND on arm64.
- Do not use tagged PC in the kernel (TCR_EL1.TBID1==1), freeing up 8
bits for PtrAuth.
- Switch to vmapped shadow call stacks.
- Miscellaneous clean-ups.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- Expose tag address bits in siginfo. The original arm64 ABI did not
expose any of the bits 63:56 of a tagged address in siginfo. In the
presence of user ASAN or MTE, this information may be useful. The
implementation is generic to other architectures supporting tags
(like SPARC ADI, subject to wiring up the arch code). The user will
have to opt in via sigaction(SA_EXPOSE_TAGBITS) so that the extra
bits, if available, become visible in si_addr.
- Default to 32-bit wide ZONE_DMA. Previously, ZONE_DMA was set to the
lowest 1GB to cope with the Raspberry Pi 4 limitations, to the
detriment of other platforms. With these changes, the kernel scans
the Device Tree dma-ranges and the ACPI IORT information before
deciding on a smaller ZONE_DMA.
- Strengthen READ_ONCE() to acquire when CONFIG_LTO=y. When building
with LTO, there is an increased risk of the compiler converting an
address dependency headed by a READ_ONCE() invocation into a control
dependency and consequently allowing for harmful reordering by the
CPU.
- Add CPPC FFH support using arm64 AMU counters.
- set_fs() removal on arm64. This renders the User Access Override
(UAO) ARMv8 feature unnecessary.
- Perf updates: PMU driver for the ARM DMC-620 memory controller, sysfs
identifier file for SMMUv3, stop event counters support for i.MX8MP,
enable the perf events-based hard lockup detector.
- Reorganise the kernel VA space slightly so that 52-bit VA
configurations can use more virtual address space.
- Improve the robustness of the arm64 memory offline event notifier.
- Pad the Image header to 64K following the EFI header definition
updated recently to increase the section alignment to 64K.
- Support CONFIG_CMDLINE_EXTEND on arm64.
- Do not use tagged PC in the kernel (TCR_EL1.TBID1==1), freeing up 8
bits for PtrAuth.
- Switch to vmapped shadow call stacks.
- Miscellaneous clean-ups.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (78 commits)
perf/imx_ddr: Add system PMU identifier for userspace
bindings: perf: imx-ddr: add compatible string
arm64: Fix build failure when HARDLOCKUP_DETECTOR_PERF is enabled
arm64: mte: fix prctl(PR_GET_TAGGED_ADDR_CTRL) if TCF0=NONE
arm64: mark __system_matches_cap as __maybe_unused
arm64: uaccess: remove vestigal UAO support
arm64: uaccess: remove redundant PAN toggling
arm64: uaccess: remove addr_limit_user_check()
arm64: uaccess: remove set_fs()
arm64: uaccess cleanup macro naming
arm64: uaccess: split user/kernel routines
arm64: uaccess: refactor __{get,put}_user
arm64: uaccess: simplify __copy_user_flushcache()
arm64: uaccess: rename privileged uaccess routines
arm64: sdei: explicitly simulate PAN/UAO entry
arm64: sdei: move uaccess logic to arch/arm64/
arm64: head.S: always initialize PSTATE
arm64: head.S: cleanup SCTLR_ELx initialization
arm64: head.S: rename el2_setup -> init_kernel_el
arm64: add C wrappers for SET_PSTATE_*()
...
- Pass error records logged by firmware through the MCE decoding chain
to provide human-readable error descriptions instead of raw values
(Smita Koralahalli)
- Some #MC handler fixes (Gabriele Paoloni)
- The usual small fixes and cleanups all over.
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Merge tag 'ras_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS updates from Borislav Petkov:
- Enable additional logging mode on older Xeons (Tony Luck)
- Pass error records logged by firmware through the MCE decoding chain
to provide human-readable error descriptions instead of raw values
(Smita Koralahalli)
- Some #MC handler fixes (Gabriele Paoloni)
- The usual small fixes and cleanups all over.
* tag 'ras_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Rename kill_it to kill_current_task
x86/mce: Remove redundant call to irq_work_queue()
x86/mce: Panic for LMCE only if mca_cfg.tolerant < 3
x86/mce: Move the mce_panic() call and 'kill_it' assignments to the right places
x86/mce, cper: Pass x86 CPER through the MCA handling chain
x86/mce: Use "safe" MSR functions when enabling additional error logging
x86/mce: Correct the detection of invalid notifier priorities
x86/mce: Assign boolean values to a bool variable
x86/mce: Enable additional error logging on certain Intel CPUs
x86/mce: Remove unneeded break
Pull crypto updates from Herbert Xu:
"API:
- Add speed testing on 1420-byte blocks for networking
Algorithms:
- Improve performance of chacha on ARM for network packets
- Improve performance of aegis128 on ARM for network packets
Drivers:
- Add support for Keem Bay OCS AES/SM4
- Add support for QAT 4xxx devices
- Enable crypto-engine retry mechanism in caam
- Enable support for crypto engine on sdm845 in qce
- Add HiSilicon PRNG driver support"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (161 commits)
crypto: qat - add capability detection logic in qat_4xxx
crypto: qat - add AES-XTS support for QAT GEN4 devices
crypto: qat - add AES-CTR support for QAT GEN4 devices
crypto: atmel-i2c - select CONFIG_BITREVERSE
crypto: hisilicon/trng - replace atomic_add_return()
crypto: keembay - Add support for Keem Bay OCS AES/SM4
dt-bindings: Add Keem Bay OCS AES bindings
crypto: aegis128 - avoid spurious references crypto_aegis128_update_simd
crypto: seed - remove trailing semicolon in macro definition
crypto: x86/poly1305 - Use TEST %reg,%reg instead of CMP $0,%reg
crypto: x86/sha512 - Use TEST %reg,%reg instead of CMP $0,%reg
crypto: aesni - Use TEST %reg,%reg instead of CMP $0,%reg
crypto: cpt - Fix sparse warnings in cptpf
hwrng: ks-sa - Add dependency on IOMEM and OF
crypto: lib/blake2s - Move selftest prototype into header file
crypto: arm/aes-ce - work around Cortex-A57/A72 silion errata
crypto: ecdh - avoid unaligned accesses in ecdh_set_secret()
crypto: ccree - rework cache parameters handling
crypto: cavium - Use dma_set_mask_and_coherent to simplify code
crypto: marvell/octeontx - Use dma_set_mask_and_coherent to simplify code
...
EFI capsule loading is a feature that was introduced into EFI long after
its initial introduction on Itanium, and it is highly unlikely that IA64
systems are receiving firmware updates in the first place, let alone
using EFI capsules.
So let's disable capsule support altogether on IA64. This fixes a build
error on IA64 due to a recent change that added an unconditional
include of asm/efi.h, which IA64 does not provide.
While at it, tweak the make rules a bit so that the EFI capsule
component that is always builtin (even if the EFI capsule loader itself
is built as a module) is omitted for all architectures if the module is
not enabled in the build.
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/linux-efi/20201214152200.38353-1-ardb@kernel.org
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Fix the following sparse warning:
drivers/firmware/xilinx/zynqmp.c:32:1: warning: symbol 'pm_api_features_map' was not declared. Should it be static?
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1606823513-121578-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The struct device input to add_links() is not used for anything. So
delete it.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-18-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The semantics of add_links() has changed from creating device link
between devices to creating fwnode links between fwnodes. So, update the
implementation of add_links() to match the new semantics.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-16-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the meaning of fwnode_operations.add_links() to just create
fwnode links by parsing the properties of a given fwnode.
This patch doesn't actually make any code changes. To keeps things more
digestable, the actual functional changes come in later patches in this
series.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-12-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are multiple locations in the kernel where a struct fwnode_handle
is initialized. Add fwnode_init() so that we have one way of
initializing a fwnode_handle.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-8-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that ARM started following the example of arm64 and RISC-V, and
no longer imposes any restrictions on the placement of the FDT in
memory at boot, we no longer need per-arch implementations of
efi_get_max_fdt_addr() to factor out the differences. So get rid of
it.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Link: https://lore.kernel.org/r/20201029134901.9773-1-ardb@kernel.org
Since the UEFI 2.8A specification the UEFI enabled firmware provides a
configuration table EFI_RT_PROPERTIES_TABLE which indicates which runtime
services are enabled. The EFI stub reads this table and saves the value of
the field RuntimeServicesSupported internally.
The Firmware Test Suite requires the value to determine if UEFI runtime
services are correctly implemented.
With this patch an IOCTL call is provided to read the value of the field
RuntimeServicesSupported, e.g.
#define EFI_RUNTIME_GET_SUPPORTED_MASK \
_IOR('p', 0x0C, unsigned int)
unsigned int mask;
fd = open("/dev/efi_test", O_RDWR);
ret = ioctl(fd, EFI_RUNTIME_GET_SUPPORTED_MASK, &mask);
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Link: https://lore.kernel.org/r/20201127192051.1430-1-xypron.glpk@gmx.de
Acked-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Ivan Hu <ivan.hu@canonical.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Scatter-gather lists passed to UpdateCapsule() should be cleaned
from the D-cache to ensure that they are visible to the CPU after a
warm reboot before the MMU is enabled. On ARM and arm64 systems, this
implies a D-cache clean by virtual address to the point of coherency.
However, due to the fact that the firmware itself is not able to map
physical addresses back to virtual addresses when running under the OS,
this must be done by the caller.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
i.MX drivers change for 5.11:
- A series from Daniel Baluta to update imx-dsp driver and export
functions for on demand channel request/free.
- A number of patches to add power domains for i.MX8qxp DC0, LVDS1,
MIPI1 and JPEG subsystems.
- Add dummy functions for i.MX firmware drivers to avoid build failure
seen with COMPILE_TEST.
* tag 'imx-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
firmware: imx: scu-pd: Add some power domains support for i.MX8qxp MIPI1 subsystem
firmware: imx: scu-pd: Add main power domain support for i.MX8qxp LVDS1 subsystem
firmware: imx: scu-pd: Add video0/1 power domains support for i.MX8qxp DC0 subsystem
firmware: imx-dsp: Export functions to request/free channels
firmware: imx: Save channel name for further use
firmware: imx: Introduce imx_dsp_setup_channels
firmware: imx: scu-pd: Add power domains for imx-jpeg
firmware: imx: add dummy functions
Link: https://lore.kernel.org/r/20201202142717.9262-1-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
soc: amlogic: driver updates for v5.11
- enable building as modules
- reset API updates
* tag 'amlogic-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
soc: amlogic: replace devm_reset_control_array_get()
soc: amlogic: canvas: add missing put_device() call in meson_canvas_get()
firmware: meson-sm: enable build as module
soc: meson: enable building drivers as modules
soc: amlogic: socinfo: build for specific arch
Link: https://lore.kernel.org/r/7him9ljgtr.fsf@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
drivers: soc: TI SOC changes for 5.11
- ti_sci changes towards DMSS support
- Static warning fixes
- Kconfig update for Keystone ARM64 socs
- AM64X SOC family support
* tag 'drivers_soc_for_5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone: (23 commits)
drivers: soc: ti: knav_qmss_queue: Fix error return code in knav_queue_probe
soc: ti: Fix reference imbalance in knav_dma_probe
soc: ti: pruss: Remove wrong check against *get_match_data return value
soc: ti: Kconfig: Drop ARM64 SoC specific configs
soc: ti: k3-ringacc: Provide documentation for 'k3_ring's 'state'
soc: ti: wkup_m3_ipc: Document 'm3_ipc' parameter throughout
soc: ti: pm33xx: Remove set but unused variable 'ret'
soc: ti: knav_dma: Fix a kernel function doc formatting issue
soc: ti: knav_qmss_queue: Fix a whole host of function documentation issues
soc: ti: knav_qmss_queue: Remove set but unchecked variable 'ret'
soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted
soc: ti: knav_qmss: fix reference leak in knav_queue_probe
soc: ti: k3-socinfo: Add entry for AM64X SoC family
soc: ti: k3-ringacc: Use correct device for allocation in RING mode
firmware: ti_sci: rm: Remove unused config() from ti_sci_rm_ringacc_ops
soc: ti: k3-ringacc: Use the ti_sci set_cfg callback for ring configuration
firmware: ti_sci: rm: Add new ops for ring configuration
firmware: ti_sci: rm: Remove ring_get_config support
firmware: ti_sci: rm: Add support for extended_ch_type for tx channel
soc: ti: ti_sci_inta_msi: Add support for second range in resource ranges
...
Link: https://lore.kernel.org/r/1606851405-26338-1-git-send-email-santosh.shilimkar@oracle.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add a new interface to the existing perf_ops and export the information
about the power values scale.
This would be used by the cpufreq driver and Energy Model framework to
set the performance domains scale: milli-Watts or abstract scale.
Suggested-by: Morten Rasmussen <morten.rasmussen@arm.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Don't use the heavy-weight kmap() API to create short-lived mappings
of the scatter-gather list entries that are released as soon as the
entries are written. Instead, use kmap_atomic(), which is more suited
to this purpose.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Make it possible to retrieve a copy of the psci_0_1_function_ids struct.
This is useful for KVM if it is configured to intercept host's PSCI SMCs.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-7-dbrazdil@google.com
Small refactor that replaces array of v0.1 function IDs indexed by an
enum of function-name constants with a struct of function IDs "indexed"
by field names. This is done in preparation for exposing the IDs to
other parts of the kernel. Exposing a struct avoids the need for
bounds checking.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-6-dbrazdil@google.com
Refactor implementation of v0.1+ functions (CPU_SUSPEND, CPU_OFF,
CPU_ON, MIGRATE) to have two functions psci_0_1_foo / psci_0_2_foo that
select the function ID and call a common helper __psci_foo.
This is a small cleanup so that the function ID array is only used for
v0.1 configurations.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-5-dbrazdil@google.com
KVM's host PSCI SMC filter needs to be aware of the PSCI version of the
system but currently it is impossible to distinguish between v0.1 and
PSCI disabled because both have get_version == NULL.
Populate get_version for v0.1 with a function that returns a constant.
psci_opt.get_version is currently unused so this has no effect on
existing functionality.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-4-dbrazdil@google.com
The SDEI support code is split across arch/arm64/ and drivers/firmware/,
largley this is split so that the arch-specific portions are under
arch/arm64, and the management logic is under drivers/firmware/.
However, exception entry fixups are currently under drivers/firmware.
Let's move the exception entry fixups under arch/arm64/. This
de-clutters the management logic, and puts all the arch-specific
portions in one place. Doing this also allows the fixups to be applied
earlier, so things like PAN and UAO will be in a known good state before
we run other logic. This will also make subsequent refactoring easier.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: James Morse <james.morse@arm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201202131558.39270-2-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patch adds the main power domain, pwm0 power domain and i2c0/1
power domains support for i.MX8qxp MIPI1 subsystem.
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This patch adds the main power domain support for i.MX8qxp LVDS1 subsystem.
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
- revert efivarfs kmemleak fix again - it was a false positive;
- make CONFIG_EFI_EARLYCON depend on CONFIG_EFI explicitly so it does not
pull in other dependencies unnecessarily if CONFIG_EFI is not set
- defer attempts to load SSDT overrides from EFI vars until after the
efivar layer is up.
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Merge tag 'efi-urgent-for-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Borislav Petkov:
"More EFI fixes forwarded from Ard Biesheuvel:
- revert efivarfs kmemleak fix again - it was a false positive
- make CONFIG_EFI_EARLYCON depend on CONFIG_EFI explicitly so it does
not pull in other dependencies unnecessarily if CONFIG_EFI is not
set
- defer attempts to load SSDT overrides from EFI vars until after the
efivar layer is up"
* tag 'efi-urgent-for-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: EFI_EARLYCON should depend on EFI
efivarfs: revert "fix memory leak in efivarfs_create()"
efi/efivars: Set generic ops before loading SSDT
Two main additions this time:
1. Support for SCMI v3.0 sensor extensions
2. Support for voltage domain management protocol added newly to SCMI v3.0
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Merge tag 'scmi-updates-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers
ARM SCMI updates for v5.11
Two main additions this time:
1. Support for SCMI v3.0 sensor extensions
2. Support for voltage domain management protocol added newly to SCMI v3.0
* tag 'scmi-updates-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Remove residual _le structs naming
firmware: arm_scmi: Add SCMI v3.0 sensor notifications
firmware: arm_scmi: Add SCMI v3.0 sensor configuration support
firmware: arm_scmi: Add SCMI v3.0 sensors timestamped reads
hwmon: (scmi) Update hwmon internal scale data type
firmware: arm_scmi: Add support to enumerated SCMI voltage domain device
firmware: arm_scmi: Add voltage domain management protocol support
dt-bindings: arm: Add support for SCMI Regulators
firmware: arm_scmi: Add SCMI v3.0 sensors descriptors extensions
firmware: arm_scmi: Add full list of sensor type enumeration
firmware: arm_scmi: Rework scmi_sensors_protocol_init
firmware: arm_scmi: Fix missing destroy_workqueue()
Link: https://lore.kernel.org/r/20201124122412.22386-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Backmerge tag 'v5.10-rc2' into arm/drivers
The SCMI pull request for the arm/drivers branch requires v5.10-rc2
because of dependencies with other git trees, so merge that in here.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
CONFIG_EFI_EARLYCON defaults to yes, and thus is enabled on systems that
do not support EFI, or do not have EFI support enabled, but do satisfy
the symbol's other dependencies.
While drivers/firmware/efi/ won't be entered during the build phase if
CONFIG_EFI=n, and drivers/firmware/efi/earlycon.c itself thus won't be
built, enabling EFI_EARLYCON does force-enable CONFIG_FONT_SUPPORT and
CONFIG_ARCH_USE_MEMREMAP_PROT, and CONFIG_FONT_8x16, which is
undesirable.
Fix this by making CONFIG_EFI_EARLYCON depend on CONFIG_EFI.
This reduces kernel size on headless systems by more than 4 KiB.
Fixes: 69c1f396f2 ("efi/x86: Convert x86 EFI earlyprintk into generic earlycon implementation")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20201124191646.3559757-1-geert@linux-m68k.org
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Efivars allows for overriding of SSDT tables, however starting with
commit
bf67fad19e ("efi: Use more granular check for availability for variable services")
this use case is broken. When loading SSDT generic ops should be set
first, however mentioned commit reversed order of operations. Fix this
by restoring original order of operations.
Fixes: bf67fad19e ("efi: Use more granular check for availability for variable services")
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20201123172817.124146-1-amadeuszx.slawinski@linux.intel.com
Tested-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Currently array of fix length PM_API_MAX is used to cache
the pm_api version (valid or invalid). However ATF based
PM APIs values are much higher then PM_API_MAX.
So to include ATF based PM APIs also, use hash-table to
store the pm_api version status.
Signed-off-by: Amit Sunil Dhamne <amit.sunil.dhamne@xilinx.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ravi Patel <ravi.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Fixes: f3217d6f2f ("firmware: xilinx: fix out-of-bounds access")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1606197161-25976-1-git-send-email-rajan.vaja@xilinx.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
SCMI v3.0 voltage domain protocol support to discover the voltage levels
supported by the domains and to set/get the configuration and voltage
level of any given domain.
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Merge tag 'scmi-voltage-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into for-next/scmi
SCMI voltage domain management protocol support for v5.11
SCMI v3.0 voltage domain protocol support to discover the voltage levels
supported by the domains and to set/get the configuration and voltage
level of any given domain.
* tag 'scmi-voltage-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Add support to enumerated SCMI voltage domain device
firmware: arm_scmi: Add voltage domain management protocol support
dt-bindings: arm: Add support for SCMI Regulators
For sake of consistency, remove any residual naming based on _le
suffixes in SCMI sensors protocol, since little endianness is already
assumed across all of SCMI implementation and, as such, all currently
existent names do not explicitly state their endianness.
No functional change.
Link: https://lore.kernel.org/r/20201123162008.35814-1-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
The kernel uses ACPI Boot Error Record Table (BERT) to report fatal
errors that occurred in a previous boot. The MCA errors in the BERT are
reported using the x86 Processor Error Common Platform Error Record
(CPER) format. Currently, the record prints out the raw MSR values and
AMD relies on the raw record to provide MCA information.
Extract the raw MSR values of MCA registers from the BERT and feed them
into mce_log() to decode them properly.
The implementation is SMCA-specific as the raw MCA register values are
given in the register offset order of the SMCA address space.
[ bp: Massage. ]
[ Fix a build breakage in patch v1. ]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lkml.kernel.org/r/20201119182938.151155-1-Smita.KoralahalliChannabasappa@amd.com
Add SCMI voltage domain device name to the core list of supported protocol
devices so that it can be enumerated if the firmware supports it.
Link: https://lore.kernel.org/r/20201119191051.46363-3-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
SCMI v3.0 introduces voltage domain protocol which provides commands to:
- Discover the voltage levels supported by a domain
- Get the configuration and voltage level of a domain
- Set the configuration and voltage level of a domain
Let us add support for the same.
Link: https://lore.kernel.org/r/20201119191051.46363-2-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add support for new SCMI v3.0 Sensors extensions related to new sensors'
features, like multiple axis and update intervals, while keeping
compatibility with SCMI v2.0 features.
While at that, refactor and simplify all the internal helpers macros and
move struct scmi_sensor_info to use only non-fixed-size typing.
Link: https://lore.kernel.org/r/20201119174906.43862-3-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Currently <crypto/sha.h> contains declarations for both SHA-1 and SHA-2,
and <crypto/sha3.h> contains declarations for SHA-3.
This organization is inconsistent, but more importantly SHA-1 is no
longer considered to be cryptographically secure. So to the extent
possible, SHA-1 shouldn't be grouped together with any of the other SHA
versions, and usage of it should be phased out.
Therefore, split <crypto/sha.h> into two headers <crypto/sha1.h> and
<crypto/sha2.h>, and make everyone explicitly specify whether they want
the declarations for SHA-1, SHA-2, or both.
This avoids making the SHA-1 declarations visible to files that don't
want anything to do with SHA-1. It also prepares for potentially moving
sha1.h into a new insecure/ or dangerous/ directory.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Now that we have a static inline helper to discover the platform's secure
boot mode that can be shared between the EFI stub and the kernel proper,
switch to it, and drop some comments about keeping them in sync manually.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
In order to save power, we only need to request a channel
when the communication with the DSP active.
For this we export the following functions:
- imx_dsp_request_channel, gets a channel with a given index
- imx_dsp_free_channel, frees a channel with a given index
Notice that we still request channels at probe to support devices
that do not have PM callbacks implemented.
More explanations about why requesting a channel has an effect
on power savings:
- requesting an mailbox channel will call mailbox's startup
function.
- startup function calls pm_runtime_get_sync which increments device
usage count and will keep the device active. Specifically, mailbox
clock will be always ON when a mailbox channel is requested.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Paul Olaru <paul.olaru@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
We want to request / free channels on demand later in order
to save power.
For this for each channel we save the name and use it to
reference the channel later.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Paul Olaru <paul.olaru@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Create a separate function that sets up DSP mailbox channels
so that imx_dsp_probe function will be easier to read.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Paul Olaru <paul.olaru@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The power domains are for imx8qxp/imx8qm JPEG encoder & decoder.
Each has 4 slots and a wrapper.
Signed-off-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Acked-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
destroy_workqueue is required before the return from scmi_notification_init
in case devm_kcalloc fails to allocate registered_protocols. Fix this by
simply moving registered_protocols allocation before alloc_workqueue.
Link: https://lore.kernel.org/r/20201110074221.41235-1-miaoqinglang@huawei.com
Fixes: bd31b24969 ("firmware: arm_scmi: Add notification dispatch and delivery")
Suggested-by: Cristian Marussi <cristian.marussi@arm.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
The way that bpmp_populate_debugfs_inband() uses strncpy()
and strncat() makes no sense since the size argument for
the first is insufficient to contain the trailing '/'
and the second passes the length of the input rather than
the output, which triggers a warning:
In function 'strncat',
inlined from 'bpmp_populate_debugfs_inband' at ../drivers/firmware/tegra/bpmp-debugfs.c:422:4:
include/linux/string.h:289:30: warning: '__builtin_strncat' specified bound depends on the length of the source argument [-Wstringop-overflow=]
289 | #define __underlying_strncat __builtin_strncat
| ^
include/linux/string.h:367:10: note: in expansion of macro '__underlying_strncat'
367 | return __underlying_strncat(p, q, count);
| ^~~~~~~~~~~~~~~~~~~~
drivers/firmware/tegra/bpmp-debugfs.c: In function 'bpmp_populate_debugfs_inband':
include/linux/string.h:288:29: note: length computed here
288 | #define __underlying_strlen __builtin_strlen
| ^
include/linux/string.h:321:10: note: in expansion of macro '__underlying_strlen'
321 | return __underlying_strlen(p);
Simplify this to use an snprintf() instead.
Fixes: 5e37b9c137 ("firmware: tegra: Add support for in-band debug")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
GSMI driver uses dma_pool_* API functions for buffer allocation
because it requires that the SMI buffers are allocated within 32-bit
physical address space. However, this does not work well with IOMMU
since there is no real device and hence no domain associated with the
device.
Since this is not a real device, it does not require any device
address(IOVA) for the buffer allocations. The only requirement is to
ensure that the physical address allocated to the buffer is within
32-bit physical address space. This is because the buffers have
nothing to do with DMA at all. It is required for communication with
firmware executing in SMI mode which has access only to the bottom
4GiB of memory. Hence, this change switches to using a SLAB cache
created with SLAB_CACHE_DMA32 that guarantees that the allocation
happens from the DMA32 memory zone. All calls to dma_pool_* are
replaced with kmem_cache_*.
In addition to that, all the code for managing the dma_pool for GSMI
platform device is dropped.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20201022071550.1192947-1-furquan@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The zynqmp_pm_set_suspend_mode() and zynqmp_pm_get_trustzone_version()
functions pass values as api_id into zynqmp_pm_invoke_fn
that are beyond PM_API_MAX, resulting in an out-of-bounds access:
drivers/firmware/xilinx/zynqmp.c: In function 'zynqmp_pm_set_suspend_mode':
drivers/firmware/xilinx/zynqmp.c:150:24: warning: array subscript 2562 is above array bounds of 'u32[64]' {aka 'unsigned int[64]'} [-Warray-bounds]
150 | if (zynqmp_pm_features[api_id] != PM_FEATURE_UNCHECKED)
| ~~~~~~~~~~~~~~~~~~^~~~~~~~
drivers/firmware/xilinx/zynqmp.c:28:12: note: while referencing 'zynqmp_pm_features'
28 | static u32 zynqmp_pm_features[PM_API_MAX];
| ^~~~~~~~~~~~~~~~~~
Replace the resulting undefined behavior with an error return.
This may break some things that happen to work at the moment
but seems better than randomly overwriting kernel data.
I assume we need additional fixes for the two functions that now
return an error.
Fixes: 76582671eb ("firmware: xilinx: Add Zynqmp firmware driver")
Fixes: e178df31cf ("firmware: xilinx: Implement ZynqMP power management APIs")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20201026155449.3703142-1-arnd@kernel.org
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Generalize the efi_get_secureboot() function so not only efistub but also
other subsystems can use it.
Note that the MokSbState handling is not factored out: the variable is
boot time only, and so it cannot be parameterized as easily. Also, the
IMA code will switch to this version in a future patch, and it does not
incorporate the MokSbState exception in the first place.
Note that the new efi_get_secureboot_mode() helper treats any failures
to read SetupMode as setup mode being disabled.
Co-developed-by: Chester Lin <clin@suse.com>
Signed-off-by: Chester Lin <clin@suse.com>
Acked-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The ringacc driver has been converted to use the new set_cfg function to
configure the ring, the old config ops can be removed.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
The sysfw ring configuration message has been extended to include virtid
and asel value for the ring.
Add the ASEL_VALID to TI_SCI_MSG_VALUE_RM_ALL_NO_ORDER as it is required
for DMA rings.
Instead of extending the current .config() ops - which would need same
patch change in the ringacc driver - add ti_sci_msg_rm_ring_cfg struct and
a new ops using it to configure the ring.
This will allow easy update path in case new members are added for the ring
configuration.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
The ring_get_cfg (0x1111 message) is not used and it is not supported by
sysfw for a long time.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Sysfw added 'extended_ch_type' to the tx_ch_cfg_req message which should be
used when BCDMA block copy channels are configured:
extended_ch_type = 0 : the channel is split tx channel (tchan)
extended_ch_type = 1 : the channel is block copy channel (bchan)
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Sysfw added support for a second range in the resource range API to be able
to describe complex allocations mainly for DMA channels.
Update the ti_sci part to consider the second range as well.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Use the ti_sci_resource_desc directly and update it's start and num members
directly instead of requiring individual parameters for them.
This will allow easy extension of the RM parameters without changing API.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
The system controller's resource manager have support for configuring the
TDTYPE of TCHAN_CFG register on j721e.
With this parameter the teardown completion can be controlled:
TDTYPE == 0: Return without waiting for peer to complete the teardown
TDTYPE == 1: Wait for peer to complete the teardown
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER is deprecated, so it should not
be enabled by default.
In light of commit 4da0b2b7e6 ("efi/libstub: Re-enable command
line initrd loading for x86"), keep the default for X86.
Fixes: cf6b836648 ("efi/libstub: Make initrd file loader configurable")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201028153402.1736103-1-geert+renesas@glider.be
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Some Dell platforms rely on modalias to customize configuration,
the product sku can be more specific for the hardware.
Add product_sku to modalias for better utilization.
Signed-off-by: Kai-Chuan Hsieh <kaichuan.hsieh@canonical.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Handful of fixes, some of them fixing issues since SCMI was merged.
It indicates that it is getting used now and people are finding bugs.
Fixes include unblocking multiple thread access with SMC/HVC transport,
ARCH_COLD_RESET value, locking in notifications, avoiding workqueue
name duplication with multiple instances of SCMI and adding missing
Rx size initialisation when using buffers for repeat transmits.
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Merge tag 'scmi-fixes-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes
ARM SCMI fixes for v5.10
Handful of fixes, some of them fixing issues since SCMI was merged.
It indicates that it is getting used now and people are finding bugs.
Fixes include unblocking multiple thread access with SMC/HVC transport,
ARCH_COLD_RESET value, locking in notifications, avoiding workqueue
name duplication with multiple instances of SCMI and adding missing
Rx size initialisation when using buffers for repeat transmits.
* tag 'scmi-fixes-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Fix duplicate workqueue name
firmware: arm_scmi: Fix locking in notifications
firmware: arm_scmi: Add missing Rx size re-initialisation
firmware: arm_scmi: Expand SMC/HVC message pool to more than one
firmware: arm_scmi: Fix ARCH_COLD_RESET
Link: https://lore.kernel.org/r/20201015123518.GA3839@bogus
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The image_size argument to efi_relocate_kernel() is currently specified
as init_size, but this is unnecessarily large. The compressed kernel is
much smaller, in fact, its image only extends up to the start of _bss,
since at this point, the .bss section is still uninitialized.
Depending on compression level, this can reduce the amount of data
copied by 4-5x.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20201011142012.96493-1-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Various driver updates for platforms. A bulk of this is smaller fixes or
cleanups, but some of the new material this time around is:
- Support for Nvidia Tegra234 SoC
- Ring accelerator support for TI AM65x
- PRUSS driver for TI platforms
- Renesas support for R-Car V3U SoC
- Reset support for Cortex-M4 processor on i.MX8MQ
There are also new socinfo entries for a handful of different SoCs
and platforms.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC-related driver updates from Olof Johansson:
"Various driver updates for platforms. A bulk of this is smaller fixes
or cleanups, but some of the new material this time around is:
- Support for Nvidia Tegra234 SoC
- Ring accelerator support for TI AM65x
- PRUSS driver for TI platforms
- Renesas support for R-Car V3U SoC
- Reset support for Cortex-M4 processor on i.MX8MQ
There are also new socinfo entries for a handful of different SoCs and
platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (131 commits)
drm/mediatek: reduce clear event
soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api
soc: mediatek: cmdq: add jump function
soc: mediatek: cmdq: add write_s_mask value function
soc: mediatek: cmdq: add write_s value function
soc: mediatek: cmdq: add read_s function
soc: mediatek: cmdq: add write_s_mask function
soc: mediatek: cmdq: add write_s function
soc: mediatek: cmdq: add address shift in jump
soc: mediatek: mtk-infracfg: Fix kerneldoc
soc: amlogic: pm-domains: use always-on flag
reset: sti: reset-syscfg: fix struct description warnings
reset: imx7: add the cm4 reset for i.MX8MQ
dt-bindings: reset: imx8mq: add m4 reset
reset: Fix and extend kerneldoc
reset: reset-zynqmp: Added support for Versal platform
dt-bindings: reset: Updated binding for Versal reset driver
reset: imx7: Support module build
soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk
soc: fsl: qman: convert to use be32_add_cpu()
...
Pull dmi update from Jean Delvare.
* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
Replace HTTP links with HTTPS ones: DMI/SMBIOS SUPPORT
This contains a handful of cleanups and new features, including:
* A handful of cleanups for our page fault handling.
* Improvements to how we fill out cacheinfo.
* Support for EFI-based systems.
---
This contains a merge from the EFI tree that was necessary as some of the EFI
support landed over there. It's my first time doing something like this,
I haven't included the set_fs stuff because the base branch it depends on
hasn't been merged yet. I'll probably have another merge window PR, as
there's more in flight (most notably the fix for new binutils I just sent out),
but I figured there was no reason to delay this any longer.
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Merge tag 'riscv-for-linus-5.10-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
"A handful of cleanups and new features:
- A handful of cleanups for our page fault handling
- Improvements to how we fill out cacheinfo
- Support for EFI-based systems"
* tag 'riscv-for-linus-5.10-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (22 commits)
RISC-V: Add page table dump support for uefi
RISC-V: Add EFI runtime services
RISC-V: Add EFI stub support.
RISC-V: Add PE/COFF header for EFI stub
RISC-V: Implement late mapping page table allocation functions
RISC-V: Add early ioremap support
RISC-V: Move DT mapping outof fixmap
RISC-V: Fix duplicate included thread_info.h
riscv/mm/fault: Set FAULT_FLAG_INSTRUCTION flag in do_page_fault()
riscv/mm/fault: Fix inline placement in vmalloc_fault() declaration
riscv: Add cache information in AUX vector
riscv: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
riscv: Set more data to cacheinfo
riscv/mm/fault: Move access error check to function
riscv/mm/fault: Move FAULT_FLAG_WRITE handling in do_page_fault()
riscv/mm/fault: Simplify mm_fault_error()
riscv/mm/fault: Move fault error handling to mm_fault_error()
riscv/mm/fault: Simplify fault error handling
riscv/mm/fault: Move vmalloc fault handling to vmalloc_fault()
riscv/mm/fault: Move bad area handling to bad_area()
...
- removed support for PNX833x alias NXT_STB22x
- included Ingenic SoC support into generic MIPS kernels
- added support for new Ingenic SoCs
- converted workaround selection to use Kconfig
- replaced old boot mem functions by memblock_*
- enabled COP2 usage in kernel for Loongson64 to make usage
of usage of 16byte load/stores possible
- cleanups and fixes
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Merge tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Thomas Bogendoerfer:
- removed support for PNX833x alias NXT_STB22x
- included Ingenic SoC support into generic MIPS kernels
- added support for new Ingenic SoCs
- converted workaround selection to use Kconfig
- replaced old boot mem functions by memblock_*
- enabled COP2 usage in kernel for Loongson64 to make use
of 16byte load/stores possible
- cleanups and fixes
* tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (92 commits)
MIPS: DEC: Restore bootmem reservation for firmware working memory area
MIPS: dec: fix section mismatch
bcm963xx_tag.h: fix duplicated word
mips: ralink: enable zboot support
MIPS: ingenic: Remove CPU_SUPPORTS_HUGEPAGES
MIPS: cpu-probe: remove MIPS_CPU_BP_GHIST option bit
MIPS: cpu-probe: introduce exclusive R3k CPU probe
MIPS: cpu-probe: move fpu probing/handling into its own file
MIPS: replace add_memory_region with memblock
MIPS: Loongson64: Clean up numa.c
MIPS: Loongson64: Select SMP in Kconfig to avoid build error
mips: octeon: Add Ubiquiti E200 and E220 boards
MIPS: SGI-IP28: disable use of ll/sc in kernel
MIPS: tx49xx: move tx4939_add_memory_regions into only user
MIPS: pgtable: Remove used PAGE_USERIO define
MIPS: alchemy: Share prom_init implementation
MIPS: alchemy: Fix build breakage, if TOUCHSCREEN_WM97XX is disabled
MIPS: process: include exec.h header in process.c
MIPS: process: Add prototype for function arch_dup_task_struct
MIPS: idle: Add prototype for function check_wait
...
Pull parisc updates from Helge Deller:
- Added fw_cfg support for parisc on qemu
- Added font support in sti text console driver for byte- and word-mode
ROMs
- Switch to more fine grained lws locks and improve spinlock handling
- Add ioread64_hi_lo() and iowrite64_hi_lo() to avoid 0-day linking
errors
- Mark pointers volatile in __xchg8(), __xchg32() and __xchg64() to
help compiler
- Header file cleanups, mostly removal of unused HP-UX compat defines
- Drop one bit from our O_NONBLOCK define to become now 000200000
- Add MAP_UNINITIALIZED define to avoid userspace compile errors
- Drop CONFIG_IDE from defconfigs
- Speed up synchronize_caches() on UP machines
- Rewrite tlb flush threshold calculation
- Comment fixes and cleanups
* 'parisc-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc/sticon: Add user font support
parisc/sticon: Always register sticon console driver
parisc: Add MAP_UNINITIALIZED define
parisc: Improve spinlock handling
parisc: Install vmlinuz instead of zImage file
parisc: Rewrite tlb flush threshold calculation
parisc: Switch to more fine grained lws locks
parisc: Mark pointers volatile in __xchg8(), __xchg32() and __xchg64()
parisc: Fix comments and enable interrupts later
parisc: Add alternative patching to synchronize_caches define
parisc: Add ioread64_hi_lo() and iowrite64_hi_lo()
parisc: disable CONFIG_IDE in defconfigs
parisc: Drop useless comments in uapi/asm/signal.h
parisc: Define O_NONBLOCK to become 000200000
parisc: Drop HP-UX specific fcntl and signal flags
parisc: Avoid external interrupts when IPI finishes
parisc: Add qemu fw_cfg interface
fw_cfg: Add support for parisc architecture
Here is the big set of USB, PHY, and Thunderbolt driver updates for
5.10-rc1.
Lots of tiny different things for these subsystems are in here,
including:
- phy driver updates
- thunderbolt / USB 4 updates and additions
- USB gadget driver updates
- xhci fixes and updates
- typec driver additions and updates
- api conversions to various drivers for core kernel api changes
- new USB control message functions to make it harder to get
wrong, as found by syzbot (took 2 tries to get it right)
- lots of tiny USB driver fixes and updates all over the place
All of these have been in linux-next for a while, with the exception of
the last "obviously correct" patch that updated a FALLTHROUGH comment
that got merged last weekend.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY/Thunderbolt driver updates from Greg KH:
"Here is the big set of USB, PHY, and Thunderbolt driver updates for
5.10-rc1.
Lots of tiny different things for these subsystems are in here,
including:
- phy driver updates
- thunderbolt / USB 4 updates and additions
- USB gadget driver updates
- xhci fixes and updates
- typec driver additions and updates
- api conversions to various drivers for core kernel api changes
- new USB control message functions to make it harder to get wrong,
as found by syzbot (took 2 tries to get it right)
- lots of tiny USB driver fixes and updates all over the place
All of these have been in linux-next for a while, with the exception
of the last "obviously correct" patch that updated a FALLTHROUGH
comment that got merged last weekend"
* tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (374 commits)
usb: musb: gadget: Use fallthrough pseudo-keyword
usb: typec: Add QCOM PMIC typec detection driver
USB: serial: option: add Cellient MPL200 card
usb: typec: tcpci_maxim: Add support for Sink FRS
usb: typec: tcpci: Implement callbacks for FRS
usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)
usb: typec: tcpci_maxim: Chip level TCPC driver
usb: typec: tcpci: Add set_vbus tcpci callback
usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference
usbip: vhci_hcd: fix calling usb_hcd_giveback_urb() with irqs enabled
usb: cdc-acm: add quirk to blacklist ETAS ES58X devices
USB: serial: ftdi_sio: use cur_altsetting for consistency
USB: serial: option: Add Telit FT980-KS composition
USB: core: remove polling for /sys/kernel/debug/usb/devices
usb: typec: add support for STUSB160x Type-C controller family
usb: typec: add typec_find_pwr_opmode
usb: typec: hd3ss3220: Use OF graph API to get the connector fwnode
dt-bindings: usb: renesas,usb3-peri: Document HS and SS data bus
dt-bindings: usb: convert ti,hd3ss3220 bindings to json-schema
usb: dwc2: Fix INTR OUT transfers in DDMA mode.
...
- Rework cpufreq statistics collection to allow it to take place
when fast frequency switching is enabled in the governor (Viresh
Kumar).
- Make the cpufreq core set the frequency scale on behalf of the
driver and update several cpufreq drivers accordingly (Ionela
Voinescu, Valentin Schneider).
- Add new hardware support to the STI and qcom cpufreq drivers and
improve them (Alain Volmat, Manivannan Sadhasivam).
- Fix multiple assorted issues in cpufreq drivers (Jon Hunter,
Krzysztof Kozlowski, Matthias Kaehlcke, Pali Rohár, Stephan
Gerhold, Viresh Kumar).
- Fix several assorted issues in the operating performance points
(OPP) framework (Stephan Gerhold, Viresh Kumar).
- Allow devfreq drivers to fetch devfreq instances by DT enumeration
instead of using explicit phandles and modify the devfreq core
code to support driver-specific devfreq DT bindings (Leonard
Crestez, Chanwoo Choi).
- Improve initial hardware resetting in the tegra30 devfreq driver
and clean up the tegra cpuidle driver (Dmitry Osipenko).
- Update the cpuidle core to collect state entry rejection
statistics and expose them via sysfs (Lina Iyer).
- Improve the ACPI _CST code handling diagnostics (Chen Yu).
- Update the PSCI cpuidle driver to allow the PM domain
initialization to occur in the OSI mode as well as in the PC
mode (Ulf Hansson).
- Rework the generic power domains (genpd) core code to allow
domain power off transition to be aborted in the absence of the
"power off" domain callback (Ulf Hansson).
- Fix two suspend-to-idle issues in the ACPI EC driver (Rafael
Wysocki).
- Fix the handling of timer_expires in the PM-runtime framework on
32-bit systems and the handling of device links in it (Grygorii
Strashko, Xiang Chen).
- Add IO requests batching support to the hibernate image saving and
reading code and drop a bogus get_gendisk() from there (Xiaoyi
Chen, Christoph Hellwig).
- Allow PCIe ports to be put into the D3cold power state if they
are power-manageable via ACPI (Lukas Wunner).
- Add missing header file include to a power capping driver (Pujin
Shi).
- Clean up the qcom-cpr AVS driver a bit (Liu Shixin).
- Kevin Hilman steps down as designated reviwer of adaptive voltage
scaling (AVS) driverrs (Kevin Hilman).
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Merge tag 'pm-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These rework the collection of cpufreq statistics to allow it to take
place if fast frequency switching is enabled in the governor, rework
the frequency invariance handling in the cpufreq core and drivers, add
new hardware support to a couple of cpufreq drivers, fix a number of
assorted issues and clean up the code all over.
Specifics:
- Rework cpufreq statistics collection to allow it to take place when
fast frequency switching is enabled in the governor (Viresh Kumar).
- Make the cpufreq core set the frequency scale on behalf of the
driver and update several cpufreq drivers accordingly (Ionela
Voinescu, Valentin Schneider).
- Add new hardware support to the STI and qcom cpufreq drivers and
improve them (Alain Volmat, Manivannan Sadhasivam).
- Fix multiple assorted issues in cpufreq drivers (Jon Hunter,
Krzysztof Kozlowski, Matthias Kaehlcke, Pali Rohár, Stephan
Gerhold, Viresh Kumar).
- Fix several assorted issues in the operating performance points
(OPP) framework (Stephan Gerhold, Viresh Kumar).
- Allow devfreq drivers to fetch devfreq instances by DT enumeration
instead of using explicit phandles and modify the devfreq core code
to support driver-specific devfreq DT bindings (Leonard Crestez,
Chanwoo Choi).
- Improve initial hardware resetting in the tegra30 devfreq driver
and clean up the tegra cpuidle driver (Dmitry Osipenko).
- Update the cpuidle core to collect state entry rejection statistics
and expose them via sysfs (Lina Iyer).
- Improve the ACPI _CST code handling diagnostics (Chen Yu).
- Update the PSCI cpuidle driver to allow the PM domain
initialization to occur in the OSI mode as well as in the PC mode
(Ulf Hansson).
- Rework the generic power domains (genpd) core code to allow domain
power off transition to be aborted in the absence of the "power
off" domain callback (Ulf Hansson).
- Fix two suspend-to-idle issues in the ACPI EC driver (Rafael
Wysocki).
- Fix the handling of timer_expires in the PM-runtime framework on
32-bit systems and the handling of device links in it (Grygorii
Strashko, Xiang Chen).
- Add IO requests batching support to the hibernate image saving and
reading code and drop a bogus get_gendisk() from there (Xiaoyi
Chen, Christoph Hellwig).
- Allow PCIe ports to be put into the D3cold power state if they are
power-manageable via ACPI (Lukas Wunner).
- Add missing header file include to a power capping driver (Pujin
Shi).
- Clean up the qcom-cpr AVS driver a bit (Liu Shixin).
- Kevin Hilman steps down as designated reviwer of adaptive voltage
scaling (AVS) drivers (Kevin Hilman)"
* tag 'pm-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
cpufreq: stats: Fix string format specifier mismatch
arm: disable frequency invariance for CONFIG_BL_SWITCHER
cpufreq,arm,arm64: restructure definitions of arch_set_freq_scale()
cpufreq: stats: Add memory barrier to store_reset()
cpufreq: schedutil: Simplify sugov_fast_switch()
ACPI: EC: PM: Drop ec_no_wakeup check from acpi_ec_dispatch_gpe()
ACPI: EC: PM: Flush EC work unconditionally after wakeup
PCI/ACPI: Whitelist hotplug ports for D3 if power managed by ACPI
PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
cpufreq: Move traces and update to policy->cur to cpufreq core
cpufreq: stats: Enable stats for fast-switch as well
cpufreq: stats: Mark few conditionals with unlikely()
cpufreq: stats: Remove locking
cpufreq: stats: Defer stats update to cpufreq_stats_record_transition()
PM: domains: Allow to abort power off when no ->power_off() callback
PM: domains: Rename power state enums for genpd
PM / devfreq: tegra30: Improve initial hardware resetting
PM / devfreq: event: Change prototype of devfreq_event_get_edev_by_phandle function
PM / devfreq: Change prototype of devfreq_get_devfreq_by_phandle function
PM / devfreq: Add devfreq_get_devfreq_by_node function
...
When more than a single SCMI device are present in the system, the
creation of the notification workqueue with the WQ_SYSFS flag will lead
to the following sysfs duplicate node warning:
sysfs: cannot create duplicate filename '/devices/virtual/workqueue/scmi_notify'
CPU: 0 PID: 20 Comm: kworker/0:1 Not tainted 5.9.0-gdf4dd84a3f7d #29
Hardware name: Broadcom STB (Flattened Device Tree)
Workqueue: events deferred_probe_work_func
Backtrace:
show_stack + 0x20/0x24
dump_stack + 0xbc/0xe0
sysfs_warn_dup + 0x70/0x80
sysfs_create_dir_ns + 0x15c/0x1a4
kobject_add_internal + 0x140/0x4d0
kobject_add + 0xc8/0x138
device_add + 0x1dc/0xc20
device_register + 0x24/0x28
workqueue_sysfs_register + 0xe4/0x1f0
alloc_workqueue + 0x448/0x6ac
scmi_notification_init + 0x78/0x1dc
scmi_probe + 0x268/0x4fc
platform_drv_probe + 0x70/0xc8
really_probe + 0x184/0x728
driver_probe_device + 0xa4/0x278
__device_attach_driver + 0xe8/0x148
bus_for_each_drv + 0x108/0x158
__device_attach + 0x190/0x234
device_initial_probe + 0x1c/0x20
bus_probe_device + 0xdc/0xec
deferred_probe_work_func + 0xd4/0x11c
process_one_work + 0x420/0x8f0
worker_thread + 0x4fc/0x91c
kthread + 0x21c/0x22c
ret_from_fork + 0x14/0x20
kobject_add_internal failed for scmi_notify with -EEXIST, don't try to
register things with the same name in the same directory.
arm-scmi brcm_scmi@1: SCMI Notifications - Initialization Failed.
arm-scmi brcm_scmi@1: SCMI Notifications NOT available.
arm-scmi brcm_scmi@1: SCMI Protocol v1.0 'brcm-scmi:' Firmware version 0x1
Fix this by using dev_name(handle->dev) which guarantees that the name is
unique and this also helps correlate which notification workqueue corresponds
to which SCMI device instance.
Link: https://lore.kernel.org/r/20201014021737.287340-1-f.fainelli@gmail.com
Fixes: bd31b24969 ("firmware: arm_scmi: Add notification dispatch and delivery")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
[sudeep.holla: trimmed backtrace to remove all unwanted hexcodes and timestamps]
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
When a protocol registers its events, the notification core takes care
to rescan the hashtable of pending event handlers and activate all the
possibly existent handlers referring to any of the events that are just
registered by the new protocol. When a pending handler becomes active
the core requests and enables the corresponding events in the SCMI
firmware.
If, for whatever reason, the enable fails, such invalid event handler
must be finally removed and freed. Let us ensure to use the
scmi_put_active_handler() helper which handles properly the needed
additional locking.
Failing to properly acquire all the needed mutexes exposes a race that
leads to the following splat being observed:
WARNING: CPU: 0 PID: 388 at lib/refcount.c:28 refcount_warn_saturate+0xf8/0x148
Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development
Platform, BIOS EDK II Jun 30 2020
pstate: 40000005 (nZcv daif -PAN -UAO BTYPE=--)
pc : refcount_warn_saturate+0xf8/0x148
lr : refcount_warn_saturate+0xf8/0x148
Call trace:
refcount_warn_saturate+0xf8/0x148
scmi_put_handler_unlocked.isra.10+0x204/0x208
scmi_put_handler+0x50/0xa0
scmi_unregister_notifier+0x1bc/0x240
scmi_notify_tester_remove+0x4c/0x68 [dummy_scmi_consumer]
scmi_dev_remove+0x54/0x68
device_release_driver_internal+0x114/0x1e8
driver_detach+0x58/0xe8
bus_remove_driver+0x88/0xe0
driver_unregister+0x38/0x68
scmi_driver_unregister+0x1c/0x28
scmi_drv_exit+0x1c/0xae0 [dummy_scmi_consumer]
__arm64_sys_delete_module+0x1a4/0x268
el0_svc_common.constprop.3+0x94/0x178
do_el0_svc+0x2c/0x98
el0_sync_handler+0x148/0x1a8
el0_sync+0x158/0x180
Link: https://lore.kernel.org/r/20201013133109.49821-1-cristian.marussi@arm.com
Fixes: e7c215f358 ("firmware: arm_scmi: Add notification callbacks-registration")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
In preparation for attaching a platform device per iomem resource teach
the efi_fake_mem code to create an e820 entry per instance. Similar to
E820_TYPE_PRAM, bypass merging resource when the e820 map is sanitized.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Jia He <justin.he@arm.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Will Deacon <will@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Hulk Robot <hulkci@huawei.com>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Link: https://lkml.kernel.org/r/159643096068.4062302.11590041070221681669.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- the usbvision driver was dropped from staging
- the Zoran driver were re-added at staging. It gained lots of
improvements, and was converted to use videobuf2 API
- a new virtual driver (vidtv) was added in order to allow testing the
digital TV framework and APIs
- the media uAPI documentation gained a glossary with commonly used
terms, helping to simplify some parts of the docs
- more cleanups at the atomisp driver
- Mediatek VPU gained support for MT8183
- added support for codecs with supports doing colorspace conversion
(CSC)
- support for CSC API was added at vivid and rksip1 drivers
- added a helper core support and uAPI for better supporting H.264
codecs
- added support for Renesas R8A774E1
- use the new SPDX GFDL-1.1-no-invariants-or-later license on media
uAPI docs, instead of a license text
- Venus driver has gained VP9 codec support
- lots of other cleanups and driver improvements
* tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (555 commits)
media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning
media: tvp7002: fix uninitialized variable warning
media: s5k5baf: drop 'data' field in struct s5k5baf_fw
media: dt-bindings: media: venus: Add an optional power domain for perf voting
media: rcar-vin: rcar-dma: Fix setting VNIS_REG for RAW8 formats
media: staging: rkisp1: uapi: Do not use BIT() macro
media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done
media: usbtv: Fix refcounting mixup
media: zoran.rst: place it at the right place this time
media: add Zoran cardlist
media: admin-guide: update cardlists
media: siano: rename a duplicated card string
media: zoran: move documentation file to the right place
media: atomisp: fixes build breakage for ISP2400 due to a cleanup
media: zoran: fix mixed case on vars
media: zoran: get rid of an unused var
media: zoran: use upper case for card types
media: zoran: fix sparse warnings
media: zoran: fix smatch warning
media: zoran: update TODO
...
Few commands provide the list of description partially and require
to be called consecutively until all the descriptors are fetched
completely. In such cases, we don't release the buffers and reuse
them for consecutive transmits.
However, currently we don't reset the Rx size which will be set as
per the response for the last transmit. This may result in incorrect
response size being interpretted as the firmware may repond with size
greater than the one set but we read only upto the size set by previous
response.
Let us reset the receive buffer size to max possible in such cases as
we don't know the exact size of the response.
Link: https://lore.kernel.org/r/20201012141746.32575-1-sudeep.holla@arm.com
Fixes: b6f20ff8bd ("firmware: arm_scmi: add common infrastructure and support for base protocol")
Reported-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
because the heuristics that various linkers & compilers use to handle them
(include these bits into the output image vs discarding them silently)
are both highly idiosyncratic and also version dependent.
Instead of this historically problematic mess, this tree by Kees Cook (et al)
adds build time asserts and build time warnings if there's any orphan section
in the kernel or if a section is not sized as expected.
And because we relied on so many silent assumptions in this area, fix a metric
ton of dependencies and some outright bugs related to this, before we can
finally enable the checks on the x86, ARM and ARM64 platforms.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-build-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull orphan section checking from Ingo Molnar:
"Orphan link sections were a long-standing source of obscure bugs,
because the heuristics that various linkers & compilers use to handle
them (include these bits into the output image vs discarding them
silently) are both highly idiosyncratic and also version dependent.
Instead of this historically problematic mess, this tree by Kees Cook
(et al) adds build time asserts and build time warnings if there's any
orphan section in the kernel or if a section is not sized as expected.
And because we relied on so many silent assumptions in this area, fix
a metric ton of dependencies and some outright bugs related to this,
before we can finally enable the checks on the x86, ARM and ARM64
platforms"
* tag 'core-build-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
x86/boot/compressed: Warn on orphan section placement
x86/build: Warn on orphan section placement
arm/boot: Warn on orphan section placement
arm/build: Warn on orphan section placement
arm64/build: Warn on orphan section placement
x86/boot/compressed: Add missing debugging sections to output
x86/boot/compressed: Remove, discard, or assert for unwanted sections
x86/boot/compressed: Reorganize zero-size section asserts
x86/build: Add asserts for unwanted sections
x86/build: Enforce an empty .got.plt section
x86/asm: Avoid generating unused kprobe sections
arm/boot: Handle all sections explicitly
arm/build: Assert for unwanted sections
arm/build: Add missing sections
arm/build: Explicitly keep .ARM.attributes sections
arm/build: Refactor linker script headers
arm64/build: Assert for unwanted sections
arm64/build: Add missing DWARF sections
arm64/build: Use common DISCARDS in linker script
arm64/build: Remove .eh_frame* sections due to unwind tables
...
- Preliminary RISC-V enablement - the bulk of it will arrive via the RISCV tree.
- Relax decompressed image placement rules for 32-bit ARM
- Add support for passing MOK certificate table contents via a config table
rather than a EFI variable.
- Add support for 18 bit DIMM row IDs in the CPER records.
- Work around broken Dell firmware that passes the entire Boot#### variable
contents as the command line
- Add definition of the EFI_MEMORY_CPU_CRYPTO memory attribute so we can
identify it in the memory map listings.
- Don't abort the boot on arm64 if the EFI RNG protocol is available but
returns with an error
- Replace slashes with exclamation marks in efivarfs file names
- Split efi-pstore from the deprecated efivars sysfs code, so we can
disable the latter on !x86.
- Misc fixes, cleanups and updates.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'efi-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI changes from Ingo Molnar:
- Preliminary RISC-V enablement - the bulk of it will arrive via the
RISCV tree.
- Relax decompressed image placement rules for 32-bit ARM
- Add support for passing MOK certificate table contents via a config
table rather than a EFI variable.
- Add support for 18 bit DIMM row IDs in the CPER records.
- Work around broken Dell firmware that passes the entire Boot####
variable contents as the command line
- Add definition of the EFI_MEMORY_CPU_CRYPTO memory attribute so we
can identify it in the memory map listings.
- Don't abort the boot on arm64 if the EFI RNG protocol is available
but returns with an error
- Replace slashes with exclamation marks in efivarfs file names
- Split efi-pstore from the deprecated efivars sysfs code, so we can
disable the latter on !x86.
- Misc fixes, cleanups and updates.
* tag 'efi-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
efi: mokvar: add missing include of asm/early_ioremap.h
efi: efivars: limit availability to X86 builds
efi: remove some false dependencies on CONFIG_EFI_VARS
efi: gsmi: fix false dependency on CONFIG_EFI_VARS
efi: efivars: un-export efivars_sysfs_init()
efi: pstore: move workqueue handling out of efivars
efi: pstore: disentangle from deprecated efivars module
efi: mokvar-table: fix some issues in new code
efi/arm64: libstub: Deal gracefully with EFI_RNG_PROTOCOL failure
efivarfs: Replace invalid slashes with exclamation marks in dentries.
efi: Delete deprecated parameter comments
efi/libstub: Fix missing-prototypes in string.c
efi: Add definition of EFI_MEMORY_CPU_CRYPTO and ability to report it
cper,edac,efi: Memory Error Record: bank group/address and chip id
edac,ghes,cper: Add Row Extension to Memory Error Record
efi/x86: Add a quirk to support command line arguments on Dell EFI firmware
efi/libstub: Add efi_warn and *_once logging helpers
integrity: Load certs from the EFI MOK config table
integrity: Move import of MokListRT certs to a separate routine
efi: Support for MOK variable config table
...
- Userspace support for the Memory Tagging Extension introduced by Armv8.5.
Kernel support (via KASAN) is likely to follow in 5.11.
- Selftests for MTE, Pointer Authentication and FPSIMD/SVE context
switching.
- Fix and subsequent rewrite of our Spectre mitigations, including the
addition of support for PR_SPEC_DISABLE_NOEXEC.
- Support for the Armv8.3 Pointer Authentication enhancements.
- Support for ASID pinning, which is required when sharing page-tables with
the SMMU.
- MM updates, including treating flush_tlb_fix_spurious_fault() as a no-op.
- Perf/PMU driver updates, including addition of the ARM CMN PMU driver and
also support to handle CPU PMU IRQs as NMIs.
- Allow prefetchable PCI BARs to be exposed to userspace using normal
non-cacheable mappings.
- Implementation of ARCH_STACKWALK for unwinding.
- Improve reporting of unexpected kernel traps due to BPF JIT failure.
- Improve robustness of user-visible HWCAP strings and their corresponding
numerical constants.
- Removal of TEXT_OFFSET.
- Removal of some unused functions, parameters and prototypes.
- Removal of MPIDR-based topology detection in favour of firmware
description.
- Cleanups to handling of SVE and FPSIMD register state in preparation
for potential future optimisation of handling across syscalls.
- Cleanups to the SDEI driver in preparation for support in KVM.
- Miscellaneous cleanups and refactoring work.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's quite a lot of code here, but much of it is due to the
addition of a new PMU driver as well as some arm64-specific selftests
which is an area where we've traditionally been lagging a bit.
In terms of exciting features, this includes support for the Memory
Tagging Extension which narrowly missed 5.9, hopefully allowing
userspace to run with use-after-free detection in production on CPUs
that support it. Work is ongoing to integrate the feature with KASAN
for 5.11.
Another change that I'm excited about (assuming they get the hardware
right) is preparing the ASID allocator for sharing the CPU page-table
with the SMMU. Those changes will also come in via Joerg with the
IOMMU pull.
We do stray outside of our usual directories in a few places, mostly
due to core changes required by MTE. Although much of this has been
Acked, there were a couple of places where we unfortunately didn't get
any review feedback.
Other than that, we ran into a handful of minor conflicts in -next,
but nothing that should post any issues.
Summary:
- Userspace support for the Memory Tagging Extension introduced by
Armv8.5. Kernel support (via KASAN) is likely to follow in 5.11.
- Selftests for MTE, Pointer Authentication and FPSIMD/SVE context
switching.
- Fix and subsequent rewrite of our Spectre mitigations, including
the addition of support for PR_SPEC_DISABLE_NOEXEC.
- Support for the Armv8.3 Pointer Authentication enhancements.
- Support for ASID pinning, which is required when sharing
page-tables with the SMMU.
- MM updates, including treating flush_tlb_fix_spurious_fault() as a
no-op.
- Perf/PMU driver updates, including addition of the ARM CMN PMU
driver and also support to handle CPU PMU IRQs as NMIs.
- Allow prefetchable PCI BARs to be exposed to userspace using normal
non-cacheable mappings.
- Implementation of ARCH_STACKWALK for unwinding.
- Improve reporting of unexpected kernel traps due to BPF JIT
failure.
- Improve robustness of user-visible HWCAP strings and their
corresponding numerical constants.
- Removal of TEXT_OFFSET.
- Removal of some unused functions, parameters and prototypes.
- Removal of MPIDR-based topology detection in favour of firmware
description.
- Cleanups to handling of SVE and FPSIMD register state in
preparation for potential future optimisation of handling across
syscalls.
- Cleanups to the SDEI driver in preparation for support in KVM.
- Miscellaneous cleanups and refactoring work"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (148 commits)
Revert "arm64: initialize per-cpu offsets earlier"
arm64: random: Remove no longer needed prototypes
arm64: initialize per-cpu offsets earlier
kselftest/arm64: Check mte tagged user address in kernel
kselftest/arm64: Verify KSM page merge for MTE pages
kselftest/arm64: Verify all different mmap MTE options
kselftest/arm64: Check forked child mte memory accessibility
kselftest/arm64: Verify mte tag inclusion via prctl
kselftest/arm64: Add utilities and a test to validate mte memory
perf: arm-cmn: Fix conversion specifiers for node type
perf: arm-cmn: Fix unsigned comparison to less than zero
arm64: dbm: Invalidate local TLB when setting TCR_EL1.HD
arm64: mm: Make flush_tlb_fix_spurious_fault() a no-op
arm64: Add support for PR_SPEC_DISABLE_NOEXEC prctl() option
arm64: Pull in task_stack_page() to Spectre-v4 mitigation code
KVM: arm64: Allow patching EL2 vectors even with KASLR is not enabled
arm64: Get rid of arm64_ssbd_state
KVM: arm64: Convert ARCH_WORKAROUND_2 to arm64_get_spectre_v4_state()
KVM: arm64: Get rid of kvm_arm_have_ssbd()
KVM: arm64: Simplify handling of ARCH_WORKAROUND_2
...
SMC/HVC can transmit only one message at the time as the shared memory
needs to be protected and the calls are synchronous.
However, in order to allow multiple threads to send SCMI messages
simultaneously, we need a larger poll of memory.
Let us just use value of 20 to keep it in sync mailbox transport
implementation. Any other value must work perfectly.
Link: https://lore.kernel.org/r/20201008143722.21888-4-etienne.carriere@linaro.org
Fixes: 1dc6558062 ("firmware: arm_scmi: Add smc/hvc transport")
Cc: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
[sudeep.holla: reworded the commit message to indicate the practicality]
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
The defination for ARCH_COLD_RESET is wrong. Let us fix it according to
the SCMI specification.
Link: https://lore.kernel.org/r/20201008143722.21888-5-etienne.carriere@linaro.org
Fixes: 95a15d80aa ("firmware: arm_scmi: Add RESET protocol in SCMI v2.0")
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
- Use dev_err_probe() to simplify error handling for i.MX GPCv2 driver.
- Add a check in i.MX SCU power domain driver to ignore the power
domains that are not owned by the current partition.
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Merge tag 'imx-drivers-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers
i.MX drivers update for 5.10:
- Use dev_err_probe() to simplify error handling for i.MX GPCv2 driver.
- Add a check in i.MX SCU power domain driver to ignore the power
domains that are not owned by the current partition.
* tag 'imx-drivers-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
firmware: imx: scu-pd: ignore power domain not owned
soc: imx: gpcv2: Use dev_err_probe() to simplify error handling
Link: https://lore.kernel.org/r/20200923073009.23678-1-shawnguo@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
Add a RISC-V architecture specific stub code that actually copies the
actual kernel image to a valid address and jump to it after boot services
are terminated. Enable UEFI related kernel configs as well for RISC-V.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Link: https://lore.kernel.org/r/20200421033336.9663-4-atish.patra@wdc.com
[ardb: - move hartid fetch into check_platform_features()
- use image_size not reserve_size
- select ISA_C
- do not use dram_base]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
The RISC-V EFI boot and runtime support will be merged for v5.10 via
the RISC-V tree. However, it incorporates some changes that conflict
with other EFI changes that are in flight, so this tag serves as a
shared base that allows those conflicts to be resolved beforehand.
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Merge tag 'efi-riscv-shared-for-v5.10' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/efi/efi into for-next
Stable branch for v5.10 shared between the EFI and RISC-V trees
The RISC-V EFI boot and runtime support will be merged for v5.10 via
the RISC-V tree. However, it incorporates some changes that conflict
with other EFI changes that are in flight, so this tag serves as a
shared base that allows those conflicts to be resolved beforehand.
* tag 'efi-riscv-shared-for-v5.10' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi/libstub: arm32: Use low allocation for the uncompressed kernel
efi/libstub: Export efi_low_alloc_above() to other units
efi/libstub: arm32: Base FDT and initrd placement on image address
efi: Rename arm-init to efi-init common for all arch
include: pe.h: Add RISC-V related PE definition
Remove unused functions and parameters from ACPI IORT code.
(Zenghui Yu via Lorenzo Pieralisi)
* for-next/acpi:
ACPI/IORT: Remove the unused inline functions
ACPI/IORT: Drop the unused @ops of iort_add_device_replay()
Remove redundant code and fix documentation of caching behaviour for the
HVC_SOFT_RESTART hypercall.
(Pingfan Liu)
* for-next/boot:
Documentation/kvm/arm: improve description of HVC_SOFT_RESTART
arm64/relocate_kernel: remove redundant code
Improve reporting of unexpected kernel traps due to BPF JIT failure.
(Will Deacon)
* for-next/bpf:
arm64: Improve diagnostics when trapping BRK with FAULT_BRK_IMM
Improve robustness of user-visible HWCAP strings and their corresponding
numerical constants.
(Anshuman Khandual)
* for-next/cpuinfo:
arm64/cpuinfo: Define HWCAP name arrays per their actual bit definitions
Cleanups to handling of SVE and FPSIMD register state in preparation
for potential future optimisation of handling across syscalls.
(Julien Grall)
* for-next/fpsimd:
arm64/sve: Implement a helper to load SVE registers from FPSIMD state
arm64/sve: Implement a helper to flush SVE registers
arm64/fpsimdmacros: Allow the macro "for" to be used in more cases
arm64/fpsimdmacros: Introduce a macro to update ZCR_EL1.LEN
arm64/signal: Update the comment in preserve_sve_context
arm64/fpsimd: Update documentation of do_sve_acc
Miscellaneous changes.
(Tian Tao and others)
* for-next/misc:
arm64/mm: return cpu_all_mask when node is NUMA_NO_NODE
arm64: mm: Fix missing-prototypes in pageattr.c
arm64/fpsimd: Fix missing-prototypes in fpsimd.c
arm64: hibernate: Remove unused including <linux/version.h>
arm64/mm: Refactor {pgd, pud, pmd, pte}_ERROR()
arm64: Remove the unused include statements
arm64: get rid of TEXT_OFFSET
arm64: traps: Add str of description to panic() in die()
Memory management updates and cleanups.
(Anshuman Khandual and others)
* for-next/mm:
arm64: dbm: Invalidate local TLB when setting TCR_EL1.HD
arm64: mm: Make flush_tlb_fix_spurious_fault() a no-op
arm64/mm: Unify CONT_PMD_SHIFT
arm64/mm: Unify CONT_PTE_SHIFT
arm64/mm: Remove CONT_RANGE_OFFSET
arm64/mm: Enable THP migration
arm64/mm: Change THP helpers to comply with generic MM semantics
arm64/mm/ptdump: Add address markers for BPF regions
Allow prefetchable PCI BARs to be exposed to userspace using normal
non-cacheable mappings.
(Clint Sbisa)
* for-next/pci:
arm64: Enable PCI write-combine resources under sysfs
Perf/PMU driver updates.
(Julien Thierry and others)
* for-next/perf:
perf: arm-cmn: Fix conversion specifiers for node type
perf: arm-cmn: Fix unsigned comparison to less than zero
arm_pmu: arm64: Use NMIs for PMU
arm_pmu: Introduce pmu_irq_ops
KVM: arm64: pmu: Make overflow handler NMI safe
arm64: perf: Defer irq_work to IPI_IRQ_WORK
arm64: perf: Remove PMU locking
arm64: perf: Avoid PMXEV* indirection
arm64: perf: Add missing ISB in armv8pmu_enable_counter()
perf: Add Arm CMN-600 PMU driver
perf: Add Arm CMN-600 DT binding
arm64: perf: Add support caps under sysfs
drivers/perf: thunderx2_pmu: Fix memory resource error handling
drivers/perf: xgene_pmu: Fix uninitialized resource struct
perf: arm_dsu: Support DSU ACPI devices
arm64: perf: Remove unnecessary event_idx check
drivers/perf: hisi: Add missing include of linux/module.h
arm64: perf: Add general hardware LLC events for PMUv3
Support for the Armv8.3 Pointer Authentication enhancements.
(By Amit Daniel Kachhap)
* for-next/ptrauth:
arm64: kprobe: clarify the comment of steppable hint instructions
arm64: kprobe: disable probe of fault prone ptrauth instruction
arm64: cpufeature: Modify address authentication cpufeature to exact
arm64: ptrauth: Introduce Armv8.3 pointer authentication enhancements
arm64: traps: Allow force_signal_inject to pass esr error code
arm64: kprobe: add checks for ARMv8.3-PAuth combined instructions
Tonnes of cleanup to the SDEI driver.
(Gavin Shan)
* for-next/sdei:
firmware: arm_sdei: Remove _sdei_event_unregister()
firmware: arm_sdei: Remove _sdei_event_register()
firmware: arm_sdei: Introduce sdei_do_local_call()
firmware: arm_sdei: Cleanup on cross call function
firmware: arm_sdei: Remove while loop in sdei_event_unregister()
firmware: arm_sdei: Remove while loop in sdei_event_register()
firmware: arm_sdei: Remove redundant error message in sdei_probe()
firmware: arm_sdei: Remove duplicate check in sdei_get_conduit()
firmware: arm_sdei: Unregister driver on error in sdei_init()
firmware: arm_sdei: Avoid nested statements in sdei_init()
firmware: arm_sdei: Retrieve event number from event instance
firmware: arm_sdei: Common block for failing path in sdei_event_create()
firmware: arm_sdei: Remove sdei_is_err()
Selftests for Pointer Authentication and FPSIMD/SVE context-switching.
(Mark Brown and Boyan Karatotev)
* for-next/selftests:
selftests: arm64: Add build and documentation for FP tests
selftests: arm64: Add wrapper scripts for stress tests
selftests: arm64: Add utility to set SVE vector lengths
selftests: arm64: Add stress tests for FPSMID and SVE context switching
selftests: arm64: Add test for the SVE ptrace interface
selftests: arm64: Test case for enumeration of SVE vector lengths
kselftests/arm64: add PAuth tests for single threaded consistency and differently initialized keys
kselftests/arm64: add PAuth test for whether exec() changes keys
kselftests/arm64: add nop checks for PAuth tests
kselftests/arm64: add a basic Pointer Authentication test
Implementation of ARCH_STACKWALK for unwinding.
(Mark Brown)
* for-next/stacktrace:
arm64: Move console stack display code to stacktrace.c
arm64: stacktrace: Convert to ARCH_STACKWALK
arm64: stacktrace: Make stack walk callback consistent with generic code
stacktrace: Remove reliable argument from arch_stack_walk() callback
Support for ASID pinning, which is required when sharing page-tables with
the SMMU.
(Jean-Philippe Brucker)
* for-next/svm:
arm64: cpufeature: Export symbol read_sanitised_ftr_reg()
arm64: mm: Pin down ASIDs for sharing mm with devices
Rely on firmware tables for establishing CPU topology.
(Valentin Schneider)
* for-next/topology:
arm64: topology: Stop using MPIDR for topology information
Spelling fixes.
(Xiaoming Ni and Yanfei Xu)
* for-next/tpyos:
arm64/numa: Fix a typo in comment of arm64_numa_init
arm64: fix some spelling mistakes in the comments by codespell
vDSO cleanups.
(Will Deacon)
* for-next/vdso:
arm64: vdso: Fix unusual formatting in *setup_additional_pages()
arm64: vdso32: Remove a bunch of #ifdef CONFIG_COMPAT_VDSO guards
Nathan reports that building the new mokvar table code for 32-bit
ARM fails with errors such as
error: implicit declaration of function 'early_memunmap'
error: implicit declaration of function 'early_memremap'
This is caused by the lack of an explicit #include of the appropriate
header, and ARM apparently does not inherit that inclusion via another
header file. So add the #include.
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
CONFIG_EFI_VARS controls the code that exposes EFI variables via
sysfs entries, which was deprecated before support for non-Intel
architectures was added to EFI. So let's limit its availability
to Intel architectures for the time being, and hopefully remove
it entirely in the not too distant future.
While at it, let's remove the module alias so that the module is
no longer loaded automatically.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Remove some false dependencies on CONFIG_EFI_VARS, which only controls
the creation of the sysfs entries, whereas the underlying functionality
that these modules rely on is enabled unconditionally when CONFIG_EFI
is set.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The gsmi code does not actually rely on CONFIG_EFI_VARS, since it only
uses the efivars abstraction that is included unconditionally when
CONFIG_EFI is defined. CONFIG_EFI_VARS controls the inclusion of the
code that exposes the sysfs entries, and which has been deprecated for
some time.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
efivars_sysfs_init() is only used locally in the source file that
defines it, so make it static and unexport it.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The worker thread that gets kicked off to sync the state of the
EFI variable list is only used by the EFI pstore implementation,
and is defined in its source file. So let's move its scheduling
there as well. Since our efivar_init() scan will bail on duplicate
entries, there is no need to disable the workqueue like we did
before, so we can run it unconditionally.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The EFI pstore implementation relies on the 'efivars' abstraction,
which encapsulates the EFI variable store in a way that can be
overridden by other backing stores, like the Google SMI one.
On top of that, the EFI pstore implementation also relies on the
efivars.ko module, which is a separate layer built on top of the
'efivars' abstraction that exposes the [deprecated] sysfs entries
for each variable that exists in the backing store.
Since the efivars.ko module is deprecated, and all users appear to
have moved to the efivarfs file system instead, let's prepare for
its removal, by removing EFI pstore's dependency on it.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Fix a couple of issues in the new mokvar-table handling code, as
pointed out by Arvind and Boris:
- don't bother checking the end of the physical region against the start
address of the mokvar table,
- ensure that we enter the loop with err = -EINVAL,
- replace size_t with unsigned long to appease pedantic type equality
checks.
Reviewed-by: Arvind Sankar <nivedita@alum.mit.edu>
Reviewed-by: Lenny Szubowicz <lszubowi@redhat.com>
Tested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Currently, on arm64, we abort on any failure from efi_get_random_bytes()
other than EFI_NOT_FOUND when it comes to setting the physical seed for
KASLR, but ignore such failures when obtaining the seed for virtual
KASLR or for early seeding of the kernel's entropy pool via the config
table. This is inconsistent, and may lead to unexpected boot failures.
So let's permit any failure for the physical seed, and simply report
the error code if it does not equal EFI_NOT_FOUND.
Cc: <stable@vger.kernel.org> # v5.8+
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
_sdei_event_unregister() is called by sdei_event_unregister() and
sdei_device_freeze(). _sdei_event_unregister() covers the shared
and private events, but sdei_device_freeze() only covers the shared
events. So the logic to cover the private events isn't needed by
sdei_device_freeze().
sdei_event_unregister sdei_device_freeze
_sdei_event_unregister sdei_unregister_shared
_sdei_event_unregister
This removes _sdei_event_unregister(). Its logic is moved to its
callers accordingly. This shouldn't cause any logical changes.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-14-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
The function _sdei_event_register() is called by sdei_event_register()
and sdei_device_thaw() as the following functional call chain shows.
_sdei_event_register() covers the shared and private events, but
sdei_device_thaw() only covers the shared events. So the logic to
cover the private events in _sdei_event_register() isn't needed by
sdei_device_thaw().
Similarly, sdei_reregister_event_llocked() covers the shared and
private events in the regard of reenablement. The logic to cover
the private events isn't needed by sdei_device_thaw() either.
sdei_event_register sdei_device_thaw
_sdei_event_register sdei_reregister_shared
sdei_reregister_event_llocked
_sdei_event_register
This removes _sdei_event_register() and sdei_reregister_event_llocked().
Their logic is moved to sdei_event_register() and sdei_reregister_shared().
This shouldn't cause any logical changes.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-13-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
During the CPU hotplug, the private events are registered, enabled
or unregistered on the specific CPU. It repeats the same steps:
initializing cross call argument, make function call on local CPU,
check the returned error.
This introduces sdei_do_local_call() to cover the first steps. The
other benefit is to make CROSSCALL_INIT and struct sdei_crosscall_args
are only visible to sdei_do_{cross, local}_call().
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-12-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
This applies cleanup on the cross call functions, no functional
changes are introduced:
* Wrap the code block of CROSSCALL_INIT inside "do { } while (0)"
as linux kernel usually does. Otherwise, scripts/checkpatch.pl
reports warning regarding this.
* Use smp_call_func_t for @fn argument in sdei_do_cross_call()
as the function is called on target CPU(s).
* Remove unnecessary space before @event in sdei_do_cross_call()
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-11-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
This removes the unnecessary while loop in sdei_event_unregister()
because of the following two reasons. This shouldn't cause any
functional changes.
* The while loop is executed for once, meaning it's not needed
in theory.
* With the while loop removed, the nested statements can be
avoid to make the code a bit cleaner.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20200922130423.10173-10-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
This removes the unnecessary while loop in sdei_event_register()
because of the following two reasons. This shouldn't cause any
functional changes.
* The while loop is executed for once, meaning it's not needed
in theory.
* With the while loop removed, the nested statements can be
avoid to make the code a bit cleaner.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20200922130423.10173-9-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
This removes the redundant error message in sdei_probe() because
the case can be identified from the errno in next error message.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-8-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
The following two checks are duplicate because @acpi_disabled doesn't
depend on CONFIG_ACPI. So the duplicate check (IS_ENABLED(CONFIG_ACPI))
can be dropped. More details is provided to keep the commit log complete:
* @acpi_disabled is defined in arch/arm64/kernel/acpi.c when
CONFIG_ACPI is enabled.
* @acpi_disabled in defined in include/acpi.h when CONFIG_ACPI
is disabled.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-7-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
The SDEI platform device is created from device-tree node or ACPI
(SDEI) table. For the later case, the platform device is created
explicitly by this module. It'd better to unregister the driver on
failure to create the device to keep the symmetry. The driver, owned
by this module, isn't needed if the device isn't existing.
Besides, the errno (@ret) should be updated accordingly in this
case.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-6-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
In sdei_init(), the nested statements can be avoided by bailing
on error from platform_driver_register() or absent ACPI SDEI table.
With it, the code looks a bit more readable.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-5-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
In sdei_event_create(), the event number is retrieved from the
variable @event_num for the shared event. The event number was
stored in the event instance. So we can fetch it from the event
instance, similar to what we're doing for the private event.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-4-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
There are multiple calls of kfree(event) in the failing path of
sdei_event_create() to free the SDEI event. It means we need to
call it again when adding more code in the failing path. It's
prone to miss doing that and introduce memory leakage.
This introduces common block for failing path in sdei_event_create()
to resolve the issue. This shouldn't cause functional changes.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-3-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
sdei_is_err() is only called by sdei_to_linux_errno(). The logic of
checking on the error number is common to them. They can be combined
finely.
This removes sdei_is_err() and its logic is combined to the function
sdei_to_linux_errno(). Also, the assignment of @err to zero is also
dropped in invoke_sdei_fn() because it's always overridden afterwards.
This shouldn't cause functional changes.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: James Morse <james.morse@arm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20200922130423.10173-2-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
Consist of:
- Add Ring accelerator support for AM65x
- Add TI PRUSS platform driver and enable it on available platforms
- Extend PRUSS driver for CORECLK_MUX/IEPCLK_MUX support
- UDMA rx ring pair fix
- Add socinfo entry for J7200
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Merge tag 'drivers_soc_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into arm/drivers
ARM: soc: TI driver updates for v5.10
Consist of:
- Add Ring accelerator support for AM65x
- Add TI PRUSS platform driver and enable it on available platforms
- Extend PRUSS driver for CORECLK_MUX/IEPCLK_MUX support
- UDMA rx ring pair fix
- Add socinfo entry for J7200
* tag 'drivers_soc_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
Add missing '#' to fix schema errors:
soc: ti: Convert to DEFINE_SHOW_ATTRIBUTE
dmaengine: ti: k3-udma-glue: Fix parameters for rx ring pair request
soc: ti: k3-socinfo: Add entry for J7200
soc: ti: pruss: support CORECLK_MUX and IEPCLK_MUX
dt-bindings: soc: ti: Update TI PRUSS bindings regarding clock-muxes
firmware: ti_sci: allow frequency change for disabled clocks by default
soc: ti: ti_sci_pm_domains: switch to use multiple genpds instead of one
soc: ti: pruss: Enable support for ICSSG subsystems on K3 J721E SoCs
soc: ti: pruss: Enable support for ICSSG subsystems on K3 AM65x SoCs
soc: ti: pruss: Add support for PRU-ICSS subsystems on 66AK2G SoC
soc: ti: pruss: Add support for PRU-ICSS subsystems on AM57xx SoCs
soc: ti: pruss: Add support for PRU-ICSSs on AM437x SoCs
soc: ti: pruss: Add a platform driver for PRUSS in TI SoCs
dt-bindings: soc: ti: Add TI PRUSS bindings
bindings: soc: ti: soc: ringacc: remove ti,dma-ring-reset-quirk
soc: ti: k3: ringacc: add am65x sr2.0 support
Link: https://lore.kernel.org/r/1600656828-29267-1-git-send-email-santosh.shilimkar@oracle.com
Signed-off-by: Olof Johansson <olof@lixom.net>
This is a minor change that implements a BPMP workaround for pre-silicon
platforms and is needed to enable support for BPMP on Tegra234.
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Merge tag 'tegra-for-5.10-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers
firmware: tegra: Changes for v5.10-rc1
This is a minor change that implements a BPMP workaround for pre-silicon
platforms and is needed to enable support for BPMP on Tegra234.
* tag 'tegra-for-5.10-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
firmware: tegra: Enable BPMP support on Tegra234
Link: https://lore.kernel.org/r/20200918150303.3938852-3-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
Delete deprecated parameter comments to fix warnings reported by make
W=1.
drivers/firmware/efi/vars.c:428: warning: Excess function parameter
'atomic' description in 'efivar_init'
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Link: https://lore.kernel.org/r/1600914018-12697-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Fix the following warnings.
drivers/firmware/efi/libstub/string.c:83:20: warning: no previous
prototype for ‘simple_strtoull’ [-Wmissing-prototypes]
drivers/firmware/efi/libstub/string.c:108:6: warning: no previous
prototype for ‘simple_strtol’ [-Wmissing-prototypes]
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Link: https://lore.kernel.org/r/1600653203-57909-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Incorporate the definition of EFI_MEMORY_CPU_CRYPTO from the UEFI
specification v2.8, and wire it into our memory map dumping routine
as well.
To make a bit of space in the output buffer, which is provided by
the various callers, shorten the descriptive names of the memory
types.
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The current user (cpuidle-psci) of psci_set_osi_mode() only needs to enable
the PSCI OSI mode. Although, as subsequent changes shows, there is a need
to be able to reset back into the PSCI PC mode.
Therefore, let's extend psci_set_osi_mode() to take a bool as in-parameter,
to let the user indicate whether to enable OSI or to switch back to PC
mode.
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- ensure that the EFI bootloader control module only probes successfully
on systems that support the EFI SetVariable runtime service
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Merge tag 'efi-urgent-for-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Borislav Petkov:
"Ensure that the EFI bootloader control module only probes successfully
on systems that support the EFI SetVariable runtime service"
[ Tag and commit from Ard Biesheuvel, forwarded by Borislav ]
* tag 'efi-urgent-for-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: efibc: check for efivars write capability
Enable support for the BPMP on Tegra234 to avoid relying on Tegra194
being enabled to pull in the needed OF device ID table entry.
On simulation platforms the BPMP hasn't booted up yet by the time we
probe the BPMP driver and the BPMP hasn't had a chance to mark the
doorbell as ringable by the CCPLEX. This corresponding check in the
BPMP driver will therefore fail. Work around this by disabling the
check on simulation platforms.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Updates to the UEFI 2.8 Memory Error Record allow splitting the bank field
into bank address and bank group, and using the last 3 bits of the extended
field as a chip identifier.
When needed, print correct version of bank field, bank group, and chip
identification.
Based on UEFI 2.8 Table 299. Memory Error Record.
Signed-off-by: Alex Kluver <alex.kluver@hpe.com>
Reviewed-by: Russ Anderson <russ.anderson@hpe.com>
Reviewed-by: Kyle Meyer <kyle.meyer@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Acked-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20200819143544.155096-3-alex.kluver@hpe.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Memory errors could be printed with incorrect row values since the DIMM
size has outgrown the 16 bit row field in the CPER structure. UEFI
Specification Version 2.8 has increased the size of row by allowing it to
use the first 2 bits from a previously reserved space within the structure.
When needed, add the extension bits to the row value printed.
Based on UEFI 2.8 Table 299. Memory Error Record
Signed-off-by: Alex Kluver <alex.kluver@hpe.com>
Tested-by: Russ Anderson <russ.anderson@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Reviewed-by: Kyle Meyer <kyle.meyer@hpe.com>
Acked-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20200819143544.155096-2-alex.kluver@hpe.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
At least some versions of Dell EFI firmware pass the entire
EFI_LOAD_OPTION descriptor, rather than just the OptionalData part, to
the loaded image. This was verified with firmware revision 2.15.0 on a
Dell Precision T3620 by Jacobo Pantoja.
To handle this, add a quirk to check if the options look like a valid
EFI_LOAD_OPTION descriptor, and if so, use the OptionalData part as the
command line.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Reported-by: Jacobo Pantoja <jacobopantoja@gmail.com>
Link: https://lore.kernel.org/linux-efi/20200907170021.GA2284449@rani.riverdale.lan/
Link: https://lore.kernel.org/r/20200914213535.933454-2-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Before commit
d0f9ca9be1 ("ARM: decompressor: run decompressor in place if loaded via UEFI")
we were rather limited in the choice of base address for the uncompressed
kernel, as we were relying on the logic in the decompressor that blindly
rounds down the decompressor execution address to the next multiple of 128
MiB, and decompresses the kernel there. For this reason, we have a lot of
complicated memory region handling code, to ensure that this memory window
is available, even though it could be occupied by reserved regions or
other allocations that may or may not collide with the uncompressed image.
Today, we simply pass the target address for the decompressed image to the
decompressor directly, and so we can choose a suitable window just by
finding a 16 MiB aligned region, while taking TEXT_OFFSET and the region
for the swapper page tables into account.
So let's get rid of the complicated logic, and instead, use the existing
bottom up allocation routine to allocate a suitable window as low as
possible, and carve out a memory region that has the right properties.
Note that this removes any dependencies on the 'dram_base' argument to
handle_kernel_image(), and so this is removed as well. Given that this
was the only remaining use of dram_base, the code that produces it is
removed entirely as well.
Reviewed-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Tested-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Permit arm32-stub.c to access efi_low_alloc_above() in a subsequent
patch by giving it external linkage and declaring it in efistub.h.
Reviewed-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Tested-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Add an efi_warn logging helper for warnings, and implement an analog of
printk_once for once-only logging.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200914213535.933454-1-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The way we use the base of DRAM in the EFI stub is problematic as it
is ill defined what the base of DRAM actually means. There are some
restrictions on the placement of FDT and initrd which are defined in
terms of dram_base, but given that the placement of the kernel in
memory is what defines these boundaries (as on ARM, this is where the
linear region starts), it is better to use the image address in these
cases, and disregard dram_base altogether.
Reviewed-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Tested-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Because of system-specific EFI firmware limitations, EFI volatile
variables may not be capable of holding the required contents of
the Machine Owner Key (MOK) certificate store when the certificate
list grows above some size. Therefore, an EFI boot loader may pass
the MOK certs via a EFI configuration table created specifically for
this purpose to avoid this firmware limitation.
An EFI configuration table is a much more primitive mechanism
compared to EFI variables and is well suited for one-way passage
of static information from a pre-OS environment to the kernel.
This patch adds initial kernel support to recognize, parse,
and validate the EFI MOK configuration table, where named
entries contain the same data that would otherwise be provided
in similarly named EFI variables.
Additionally, this patch creates a sysfs binary file for each
EFI MOK configuration table entry found. These files are read-only
to root and are provided for use by user space utilities such as
mokutil.
A subsequent patch will load MOK certs into the trusted platform
key ring using this infrastructure.
Signed-off-by: Lenny Szubowicz <lszubowi@redhat.com>
Link: https://lore.kernel.org/r/20200905013107.10457-2-lszubowi@redhat.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Branden reports that commit
f88814cc25 ("efi/efivars: Expose RT service availability via efivars abstraction")
regresses UEFI platforms that implement GetVariable but not SetVariable
when booting kernels that have EFIBC (bootloader control) enabled.
The reason is that EFIBC is a user of the efivars abstraction, which was
updated to permit users that rely only on the read capability, but not on
the write capability. EFIBC is in the latter category, so it has to check
explicitly whether efivars supports writes.
Fixes: f88814cc25 ("efi/efivars: Expose RT service availability via efivars abstraction")
Tested-by: Branden Sherrell <sherrellbc@gmail.com>
Link: https://lore.kernel.org/linux-efi/AE217103-C96F-4AFC-8417-83EC11962004@gmail.com/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Now, with all the plumbing in place to enable building scmi as a module
instead of built-in modules, let us enable the same.
Link: https://lore.kernel.org/r/20200907195046.56615-5-sudeep.holla@arm.com
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
In preparation to enable building SCMI as a single module, let us move
the SCMI protocol registration call into the driver. This enables us
to also add unregistration of the SCMI protocols.
The main reason for this is to keep it simple instead of maintaining
it as separate modules and dealing with all possible initcall races
and deferred probe handling. We can move it as separate modules if
needed in future.
Link: https://lore.kernel.org/r/20200907195046.56615-4-sudeep.holla@arm.com
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
In preparation to enable building scmi as a single module, let us move
the scmi bus {de-,}initialisation call into the driver.
The main reason for this is to keep it simple instead of maintaining
it as separate modules and dealing with all possible initcall races
and deferred probe handling. We can move it as separate modules if
needed in future.
Link: https://lore.kernel.org/r/20200907195046.56615-3-sudeep.holla@arm.com
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
We need to export both arm_smccc_1_1_get_conduit and arm_smccc_get_version
to allow several modules make use of them. Arm FFA, Arm SCMI and PTP
drivers are few drivers that are planning to use these functions.
Let us export them in preparation to add support for SCMI as module.
Link: https://lore.kernel.org/r/20200907195046.56615-2-sudeep.holla@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Here are some small driver core and debugfs fixes for 5.9-rc5
Included in here are:
- firmware loader memory leak fix
- firmware loader testing fixes for non-EFI systems
- device link locking fixes found by lockdep
- kobject_del() bugfix that has been affecting some callers
- debugfs minor fix
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are some small driver core and debugfs fixes for 5.9-rc5
Included in here are:
- firmware loader memory leak fix
- firmware loader testing fixes for non-EFI systems
- device link locking fixes found by lockdep
- kobject_del() bugfix that has been affecting some callers
- debugfs minor fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
test_firmware: Test platform fw loading on non-EFI systems
PM: <linux/device.h>: fix @em_pd kernel-doc warning
kobject: Drop unneeded conditional in __kobject_del()
driver core: Fix device_pm_lock() locking for device links
MAINTAINERS: Add the security document to SECURITY CONTACT
driver code: print symbolic error code
debugfs: Fix module state check condition
kobject: Restore old behaviour of kobject_del(NULL)
firmware_loader: fix memory leak for paged buffer
Should not register power domain that not owned by current
partition.
Alought power domains will not be registered when power on failure,
we have to let CPU waste more cycles.
Whether power on or owned check, both need communicate with SCU,
but with owned check, we no need to run more code path to save CPU
cycles.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
If a clock is disabled, its frequency should be allowed to change as
it is no longer in use. Add a flag towards this to the firmware clock
API handler routines.
Acked-by: Nishanth Menon <nm@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
arm-init is responsible for setting up efi runtime and doesn't actually
do any ARM specific stuff. RISC-V can use the same source code as it is.
Rename it to efi-init so that RISC-V can use it.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Link: https://lore.kernel.org/r/20200819222425.30721-8-atish.patra@wdc.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
On non-EFI systems, it wasn't possible to test the platform firmware
loader because it will have never set "checked_fw" during __init.
Instead, allow the test code to override this check. Additionally split
the declarations into a private symbol namespace so there is greater
enforcement of the symbol visibility.
Fixes: 548193cba2 ("test_firmware: add support for firmware_request_platform")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20200909225354.3118328-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
scmi_mailbox is obtained from cinfo->transport_info and the first
call to mailbox_chan_free frees the channel and sets cinfo->transport_info
to NULL. Care is taken to check for non NULL smbox->chan but smbox can
itself be NULL. Fix it by checking for it without which, kernel crashes
with below NULL pointer dereference and eventually kernel panic.
Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000038
Modules linked in: scmi_module(-)
Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno
Development Platform, BIOS EDK II Sep 2 2020
pstate: 80000005 (Nzcv daif -PAN -UAO BTYPE=--)
pc : mailbox_chan_free+0x2c/0x70 [scmi_module]
lr : idr_for_each+0x6c/0xf8
Call trace:
mailbox_chan_free+0x2c/0x70 [scmi_module]
idr_for_each+0x6c/0xf8
scmi_remove+0xa8/0xf0 [scmi_module]
platform_drv_remove+0x34/0x58
device_release_driver_internal+0x118/0x1f0
driver_detach+0x58/0xe8
bus_remove_driver+0x64/0xe0
driver_unregister+0x38/0x68
platform_driver_unregister+0x1c/0x28
scmi_driver_exit+0x38/0x44 [scmi_module]
---[ end trace 17bde19f50436de9 ]---
Kernel panic - not syncing: Fatal exception
SMP: stopping secondary CPUs
Kernel Offset: 0x1d0000 from 0xffff800010000000
PHYS_OFFSET: 0x80000000
CPU features: 0x0240022,25806004
Memory Limit: none
---[ end Kernel panic - not syncing: Fatal exception ]---
Link: https://lore.kernel.org/r/20200908112611.31515-1-sudeep.holla@arm.com
Fixes: 5c8a47a5a9 ("firmware: arm_scmi: Make scmi core independent of the transport type")
Cc: Cristian Marussi <cristian.marussi@arm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add SCMI device for system power protocol by just adding the name "syspower"
to the list of supported core protocol devices.
Link: https://lore.kernel.org/r/20200907174657.32466-3-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add bare protocol support for SCMI system power protocol as needed by
an OSPM agent: basic initialization and SYSTEM_POWER_STATE_NOTIFIER
core notification support.
No event-handling logic is attached to such notification..
Link: https://lore.kernel.org/r/20200907174657.32466-2-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
TEXT_OFFSET serves no purpose, and for this reason, it was redefined
as 0x0 in the v5.8 timeframe. Since this does not appear to have caused
any issues that require us to revisit that decision, let's get rid of the
macro entirely, along with any references to it.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20200825135440.11288-1-ardb@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
In preparation for adding --orphan-handling=warn to more architectures,
disable -mbranch-protection, as EFI does not yet support it[1]. This was
noticed due to it producing unwanted .note.gnu.property sections (prefixed
with .init due to the objcopy build step).
However, we must also work around a bug in Clang where the section is
still emitted for code-less object files[2], so also remove the section
during the objcopy.
[1] https://lore.kernel.org/lkml/CAMj1kXHck12juGi=E=P4hWP_8vQhQ+-x3vBMc3TGeRWdQ-XkxQ@mail.gmail.com
[2] https://bugs.llvm.org/show_bug.cgi?id=46480
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20200821194310.3089815-8-keescook@chromium.org
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Merge 5.9-rc3 into usb-next
We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Revert the platform driver conversion of interrupt chip drivers as it
turned out to create more problems than it solves.
- Fix a trivial typo in the new module helpers which made probing reliably
fail.
- Small fixes in the STM32 and MIPS Ingenic drivers
- The TI firmware rework which had badly managed dependencies and had to
wait post rc1.
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Merge tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of fixes for interrupt chip drivers:
- Revert the platform driver conversion of interrupt chip drivers as
it turned out to create more problems than it solves.
- Fix a trivial typo in the new module helpers which made probing
reliably fail.
- Small fixes in the STM32 and MIPS Ingenic drivers
- The TI firmware rework which had badly managed dependencies and had
to wait post rc1"
* tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/ingenic: Leave parent IRQ unmasked on suspend
irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake
irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse
irqchip: Fix probing deferal when using IRQCHIP_PLATFORM_DRIVER helpers
arm64: dts: k3-am65: Update the RM resource types
arm64: dts: k3-am65: ti-sci-inta/intr: Update to latest bindings
arm64: dts: k3-j721e: ti-sci-inta/intr: Update to latest bindings
irqchip/ti-sci-inta: Add support for INTA directly connecting to GIC
irqchip/ti-sci-inta: Do not store TISCI device id in platform device id field
dt-bindings: irqchip: Convert ti, sci-inta bindings to yaml
dt-bindings: irqchip: ti, sci-inta: Update docs to support different parent.
irqchip/ti-sci-intr: Add support for INTR being a parent to INTR
dt-bindings: irqchip: Convert ti, sci-intr bindings to yaml
dt-bindings: irqchip: ti, sci-intr: Update bindings to drop the usage of gic as parent
firmware: ti_sci: Add support for getting resource with subtype
firmware: ti_sci: Drop unused structure ti_sci_rm_type_map
firmware: ti_sci: Drop the device id to resource type translation
Make the command line parsing more robust, by handling the case it is
not NUL-terminated.
Use strnlen instead of strlen, and make sure that the temporary copy is
NUL-terminated before parsing.
Cc: <stable@vger.kernel.org>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200813185811.554051-4-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Treat a NULL cmdline the same as empty. Although this is unlikely to
happen in practice, the x86 kernel entry does check for NULL cmdline and
handles it, so do it here as well.
Cc: <stable@vger.kernel.org>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200729193300.598448-1-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
destroy_workqueue() should be called to destroy efi_rts_wq
when efisubsys_init() init resources fails.
Cc: <stable@vger.kernel.org>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Li Heng <liheng40@huawei.com>
Link: https://lore.kernel.org/r/1595229738-10087-1-git-send-email-liheng40@huawei.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This reverts commit fbbc5ff3f7.
The vl805 init routine has moved into drivers/reset/reset-raspberrypi.c
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200629161845.6021-9-nsaenzjulienne@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit c65822fef4.
The initialization of Raspberry Pi 4's USB chip is now handled through a
reset controller. No need to directly call the firmware routine through a
PCI quirk.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200629161845.6021-7-nsaenzjulienne@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
bcm47xx_sprom.h did not include a prototype for bcm47xx_fill_sprom()
therefore add one, and make sure we do include that header to fix
-Wmissing-prototypes warnings.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
With SYSFW ABI 3.0 changes, interrupts coming out of an interrupt
controller is identified by a type and it is consistent across SoCs.
Similarly global events for Interrupt aggregator. So add an API to get
resource range using a resource type.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20200806074826.24607-4-lokeshvutla@ti.com
struct ti_sci_rm_type_map is no longer used. Drop its definition and its
declarations.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20200806074826.24607-3-lokeshvutla@ti.com
With ABI 3.0, sysfw deprecated special resource types used for AM65x
SoC. Instead started using device id as resource type similar to the
convention used in J721E SOC.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20200806074826.24607-2-lokeshvutla@ti.com
Eliminate all GOT entries in the decompressor binary, by forcing hidden
visibility for all symbol references, which informs the compiler that
such references will be resolved at link time without the need for
allocating GOT entries.
To ensure that no GOT entries will creep back in, add an assertion to
the decompressor linker script that will fire if the .got section has
a non-zero size.
[Arvind: move hidden.h to include/linux instead of making a copy]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200731230820.1742553-3-keescook@chromium.org
Add helpers to wrap the get_fs/set_fs magic for undoing any damange done
by set_fs(KERNEL_DS). There is no real functional benefit, but this
documents the intent of these calls better, and will allow stubbing the
functions out easily for kernels builds that do not allow address space
overrides in the future.
[hch@lst.de: drop two incorrect hunks, fix a commit log typo]
Link: http://lkml.kernel.org/r/20200714105505.935079-6-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Greentime Hu <green.hu@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Link: http://lkml.kernel.org/r/20200710135706.537715-6-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- run the checker (e.g. sparse) after the compiler
- remove unneeded cc-option tests for old compiler flags
- fix tar-pkg to install dtbs
- introduce ccflags-remove-y and asflags-remove-y syntax
- allow to trace functions in sub-directories of lib/
- introduce hostprogs-always-y and userprogs-always-y syntax
- various Makefile cleanups
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Merge tag 'kbuild-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- run the checker (e.g. sparse) after the compiler
- remove unneeded cc-option tests for old compiler flags
- fix tar-pkg to install dtbs
- introduce ccflags-remove-y and asflags-remove-y syntax
- allow to trace functions in sub-directories of lib/
- introduce hostprogs-always-y and userprogs-always-y syntax
- various Makefile cleanups
* tag 'kbuild-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: stop filtering out $(GCC_PLUGINS_CFLAGS) from cc-option base
kbuild: include scripts/Makefile.* only when relevant CONFIG is enabled
kbuild: introduce hostprogs-always-y and userprogs-always-y
kbuild: sort hostprogs before passing it to ifneq
kbuild: move host .so build rules to scripts/gcc-plugins/Makefile
kbuild: Replace HTTP links with HTTPS ones
kbuild: trace functions in subdirectories of lib/
kbuild: introduce ccflags-remove-y and asflags-remove-y
kbuild: do not export LDFLAGS_vmlinux
kbuild: always create directories of targets
powerpc/boot: add DTB to 'targets'
kbuild: buildtar: add dtbs support
kbuild: remove cc-option test of -ffreestanding
kbuild: remove cc-option test of -fno-stack-protector
Revert "kbuild: Create directory for target DTB"
kbuild: run the checker after the compiler
framework we just have some minor tweaks and a debugfs feature, so not much to
see there. The driver updates are fairly well split between AT91 and Qualcomm
clk support. Adding those two drivers together equals about 50% of the
diffstat. Otherwise, the big amount of work this time was on supporting
Broadcom's Raspberry Pi firmware clks. See below for some more highlights.
Core:
- Document clk_hw_round_rate() so it gets some more use
- Remove unused __clk_get_flags()
- Add a prepare/enable debugfs feature similar to rate setting
New Drivers:
- Add support for SAMA7G5 SoC clks
- Enable CPU clks on Qualcomm IPQ6018 SoCs
- Enable CPU clks on Qualcomm MSM8996 SoCs
- GPU clk support for Qualcomm SM8150 and SM8250 SoCs
- Audio clks on Qualcomm SC7180 SoCs
- Microchip Sparx5 DPLL clk
- Add support for the new Renesas RZ/G2H (R8A774E1) SoC
Updates:
- Make defines for bcm63xx-gate clks to use in DT
- Support BCM2711 SoC firmware clks
- Add HDMI clks for BCM2711 SoCs
- Add RTC related clks on Ingenic SoCs
- Support USB PHY clks on Ingenic SoCs
- Support gate clks on BCM6318 SoCs
- RMU and DMAC/GPIO clock support for Actions Semi S500 SoCs
- Use poll_timeout functions in Rockchip clk driver
- Support Rockchip rk3288w SoC variant
- Mark mac_lbtest critical on Rockchip rk3188
- Add CAAM clock support for i.MX vf610 driver
- Add MU root clock support for i.MX imx8mp driver
- Amlogic g12: add neural network accelerator clock sources
- Amlogic meson8: remove critical flag for main PLL divider
- Amlogic meson8: add video decoder clock gates
- Convert one more Renesas DT binding to json-schema
- Enhance critical clock handling on Renesas platforms to only consider
clocks that were enabled at boot time
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"It looks like a smaller batch of clk updates this time around.
In the core framework we just have some minor tweaks and a debugfs
feature, so not much to see there. The driver updates are fairly well
split between AT91 and Qualcomm clk support. Adding those two drivers
together equals about 50% of the diffstat.
Otherwise, the big amount of work this time was on supporting
Broadcom's Raspberry Pi firmware clks.
Highlights:
Core:
- Document clk_hw_round_rate() so it gets some more use
- Remove unused __clk_get_flags()
- Add a prepare/enable debugfs feature similar to rate setting
New Drivers:
- Add support for SAMA7G5 SoC clks
- Enable CPU clks on Qualcomm IPQ6018 SoCs
- Enable CPU clks on Qualcomm MSM8996 SoCs
- GPU clk support for Qualcomm SM8150 and SM8250 SoCs
- Audio clks on Qualcomm SC7180 SoCs
- Microchip Sparx5 DPLL clk
- Add support for the new Renesas RZ/G2H (R8A774E1) SoC
Updates:
- Make defines for bcm63xx-gate clks to use in DT
- Support BCM2711 SoC firmware clks
- Add HDMI clks for BCM2711 SoCs
- Add RTC related clks on Ingenic SoCs
- Support USB PHY clks on Ingenic SoCs
- Support gate clks on BCM6318 SoCs
- RMU and DMAC/GPIO clock support for Actions Semi S500 SoCs
- Use poll_timeout functions in Rockchip clk driver
- Support Rockchip rk3288w SoC variant
- Mark mac_lbtest critical on Rockchip rk3188
- Add CAAM clock support for i.MX vf610 driver
- Add MU root clock support for i.MX imx8mp driver
- Amlogic g12: add neural network accelerator clock sources
- Amlogic meson8: remove critical flag for main PLL divider
- Amlogic meson8: add video decoder clock gates
- Convert one more Renesas DT binding to json-schema
- Enhance critical clock handling on Renesas platforms to only
consider clocks that were enabled at boot time"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (79 commits)
clk: qcom: gcc: Make disp gpll0 branch aon for sc7180/sdm845
ipq806x: gcc: add support for child probe
clk: qcom: msm8996: Make symbol 'cpu_msm8996_clks' static
clk: qcom: ipq8074: Add correct index for PCIe clocks
clk: <linux/clk-provider.h>: drop a duplicated word
clk: renesas: cpg-mssr: Add r8a774e1 support
dt-bindings: clock: renesas,cpg-mssr: Document r8a774e1
clk: Drop duplicate selection in Kconfig
clk: qcom: smd: Add support for MSM8992/4 rpm clocks
clk: qcom: ipq8074: Add missing clocks for pcie
dt-bindings: clock: qcom: ipq8074: Add missing bindings for PCIe
Replace HTTP links with HTTPS ones: Common CLK framework
clk: qcom: Add CPU clock driver for msm8996
dt-bindings: clk: qcom: Add bindings for CPU clock for msm8996
soc: qcom: Separate kryo l2 accessors from PMU driver
clk: meson: meson8b: add the vclk2_en gate clock
clk: meson: meson8b: add the vclk_en gate clock
clk: qcom: Fix return value check in apss_ipq6018_probe()
clk: bcm: dvp: Add missing module informations
clk: meson: meson8b: Drop CLK_IS_CRITICAL from fclk_div2
...
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
lpfc, hpsa, zfcp, scsi_debug) and minor bug fixes. We also have a
huge docbook fix update like most other subsystems and no major update
to the core (the few non trivial updates are either minor fixes or
removing an unused feature [scsi_sdb_cache]).
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This consists of the usual driver updates (ufs, qla2xxx, tcmu, lpfc,
hpsa, zfcp, scsi_debug) and minor bug fixes.
We also have a huge docbook fix update like most other subsystems and
no major update to the core (the few non trivial updates are either
minor fixes or removing an unused feature [scsi_sdb_cache])"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (307 commits)
scsi: scsi_transport_srp: Sanitize scsi_target_block/unblock sequences
scsi: ufs-mediatek: Apply DELAY_AFTER_LPM quirk to Micron devices
scsi: ufs: Introduce device quirk "DELAY_AFTER_LPM"
scsi: virtio-scsi: Correctly handle the case where all LUNs are unplugged
scsi: scsi_debug: Implement tur_ms_to_ready parameter
scsi: scsi_debug: Fix request sense
scsi: lpfc: Fix typo in comment for ULP
scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
scsi: hpsa: Correct ctrl queue depth
scsi: target: tcmu: Make TMR notification optional
scsi: target: tcmu: Implement tmr_notify callback
scsi: target: tcmu: Fix and simplify timeout handling
scsi: target: tcmu: Factor out new helper ring_insert_padding
scsi: target: tcmu: Do not queue aborted commands
scsi: target: tcmu: Use priv pointer in se_cmd
scsi: target: Add tmr_notify backend function
scsi: target: Modify core_tmr_abort_task()
scsi: target: iscsi: Fix inconsistent debug message
scsi: target: iscsi: Fix login error when receiving
...
static priority level knowledge from non-scheduler code.
The three APIs for non-scheduler code to set SCHED_FIFO are:
- sched_set_fifo()
- sched_set_fifo_low()
- sched_set_normal()
These are two FIFO priority levels: default (high), and a 'low' priority level,
plus sched_set_normal() to set the policy back to non-SCHED_FIFO.
Since the changes affect a lot of non-scheduler code, we kept this in a separate
tree.
When merging to the latest upstream tree there's a conflict in drivers/spi/spi.c,
which can be resolved via:
sched_set_fifo(ctlr->kworker_task);
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull sched/fifo updates from Ingo Molnar:
"This adds the sched_set_fifo*() encapsulation APIs to remove static
priority level knowledge from non-scheduler code.
The three APIs for non-scheduler code to set SCHED_FIFO are:
- sched_set_fifo()
- sched_set_fifo_low()
- sched_set_normal()
These are two FIFO priority levels: default (high), and a 'low'
priority level, plus sched_set_normal() to set the policy back to
non-SCHED_FIFO.
Since the changes affect a lot of non-scheduler code, we kept this in
a separate tree"
* tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
sched,tracing: Convert to sched_set_fifo()
sched: Remove sched_set_*() return value
sched: Remove sched_setscheduler*() EXPORTs
sched,psi: Convert to sched_set_fifo_low()
sched,rcutorture: Convert to sched_set_fifo_low()
sched,rcuperf: Convert to sched_set_fifo_low()
sched,locktorture: Convert to sched_set_fifo()
sched,irq: Convert to sched_set_fifo()
sched,watchdog: Convert to sched_set_fifo()
sched,serial: Convert to sched_set_fifo()
sched,powerclamp: Convert to sched_set_fifo()
sched,ion: Convert to sched_set_normal()
sched,powercap: Convert to sched_set_fifo*()
sched,spi: Convert to sched_set_fifo*()
sched,mmc: Convert to sched_set_fifo*()
sched,ivtv: Convert to sched_set_fifo*()
sched,drm/scheduler: Convert to sched_set_fifo*()
sched,msm: Convert to sched_set_fifo*()
sched,psci: Convert to sched_set_fifo*()
sched,drbd: Convert to sched_set_fifo*()
...
Here is the large set of char and misc and other driver subsystem
patches for 5.9-rc1. Lots of new driver submissions in here, and
cleanups and features for existing drivers.
Highlights are:
- habanalabs driver updates
- coresight driver updates
- nvmem driver updates
- huge number of "W=1" build warning cleanups from Lee Jones
- dyndbg updates
- virtbox driver fixes and updates
- soundwire driver updates
- mei driver updates
- phy driver updates
- fpga driver updates
- lots of smaller individual misc/char driver cleanups and fixes
Full details are in the shortlog.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char and misc and other driver subsystem
patches for 5.9-rc1. Lots of new driver submissions in here, and
cleanups and features for existing drivers.
Highlights are:
- habanalabs driver updates
- coresight driver updates
- nvmem driver updates
- huge number of "W=1" build warning cleanups from Lee Jones
- dyndbg updates
- virtbox driver fixes and updates
- soundwire driver updates
- mei driver updates
- phy driver updates
- fpga driver updates
- lots of smaller individual misc/char driver cleanups and fixes
Full details are in the shortlog.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (322 commits)
habanalabs: remove unused but set variable 'ctx_asid'
nvmem: qcom-spmi-sdam: Enable multiple devices
dt-bindings: nvmem: SID: add binding for A100's SID controller
nvmem: update Kconfig description
nvmem: qfprom: Add fuse blowing support
dt-bindings: nvmem: Add properties needed for blowing fuses
dt-bindings: nvmem: qfprom: Convert to yaml
nvmem: qfprom: use NVMEM_DEVID_AUTO for multiple instances
nvmem: core: add support to auto devid
nvmem: core: Add nvmem_cell_read_u8()
nvmem: core: Grammar fixes for help text
nvmem: sc27xx: add sc2730 efuse support
nvmem: Enforce nvmem stride in the sysfs interface
MAINTAINERS: Add git tree for NVMEM FRAMEWORK
nvmem: sprd: Fix return value of sprd_efuse_probe()
drivers: android: Fix the SPDX comment style
drivers: android: Fix a variable declaration coding style issue
drivers: android: Remove braces for a single statement if-else block
drivers: android: Remove the use of else after return
drivers: android: Fix a variable declaration coding style issue
...
A couple of subsystems have their own subsystem maintainers but choose
to have the code merged through the soc tree as upstream, as the code
tends to be used across multiple SoCs or has SoC specific drivers itself:
- memory controllers:
Krzysztof Kozlowski takes ownership of the drivers/memory
subsystem and its drivers, starting out with a set of cleanup
patches.
A larger driver for the Tegra memory controller that was accidentally
missed for v5.8 is now added.
- reset controllers:
Only minor updates to drivers/reset this time
- firmware:
The "turris mox" firmware driver gains support for signed firmware blobs
The tegra firmware driver gets extended to export some debug information
Various updates to i.MX firmware drivers, mostly cosmetic
- ARM SCMI/SCPI:
A new mechanism for platform notifications is added, among a number
of minor changes.
- optee:
Probing of the TEE bus is rewritten to better support detection of
devices that depend on the tee-supplicant user space.
A new firmware based trusted platform module (fTPM) driver is added
based on OP-TEE
- SoC attributes:
A new driver is added to provide a generic soc_device for identifying
a machine through the SMCCC ARCH_SOC_ID firmware interface rather than
by probing SoC family specific registers.
The series also contains some cleanups to the common soc_device code.
There are also a number of updates to SoC specific drivers,
the main ones are:
- Mediatek cmdq driver gains a few in-kernel interfaces
- Minor updates to Qualcomm RPMh, socinfo, rpm drivers, mostly adding
support for additional SoC variants
- The Qualcomm GENI core code gains interconnect path voting and
performance level support, and integrating this into a number of
device drivers.
- A new driver for Samsung Exynos5800 voltage coupler for
- Renesas RZ/G2H (R8A774E1) SoC support gets added to a couple of SoC
specific device drivers
- Updates to the TI K3 Ring Accelerator driver
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Merge tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"A couple of subsystems have their own subsystem maintainers but choose
to have the code merged through the soc tree as upstream, as the code
tends to be used across multiple SoCs or has SoC specific drivers
itself:
- memory controllers:
Krzysztof Kozlowski takes ownership of the drivers/memory subsystem
and its drivers, starting out with a set of cleanup patches.
A larger driver for the Tegra memory controller that was
accidentally missed for v5.8 is now added.
- reset controllers:
Only minor updates to drivers/reset this time
- firmware:
The "turris mox" firmware driver gains support for signed firmware
blobs The tegra firmware driver gets extended to export some debug
information Various updates to i.MX firmware drivers, mostly
cosmetic
- ARM SCMI/SCPI:
A new mechanism for platform notifications is added, among a number
of minor changes.
- optee:
Probing of the TEE bus is rewritten to better support detection of
devices that depend on the tee-supplicant user space. A new
firmware based trusted platform module (fTPM) driver is added based
on OP-TEE
- SoC attributes:
A new driver is added to provide a generic soc_device for
identifying a machine through the SMCCC ARCH_SOC_ID firmware
interface rather than by probing SoC family specific registers.
The series also contains some cleanups to the common soc_device
code.
There are also a number of updates to SoC specific drivers, the main
ones are:
- Mediatek cmdq driver gains a few in-kernel interfaces
- Minor updates to Qualcomm RPMh, socinfo, rpm drivers, mostly adding
support for additional SoC variants
- The Qualcomm GENI core code gains interconnect path voting and
performance level support, and integrating this into a number of
device drivers.
- A new driver for Samsung Exynos5800 voltage coupler for
- Renesas RZ/G2H (R8A774E1) SoC support gets added to a couple of SoC
specific device drivers
- Updates to the TI K3 Ring Accelerator driver"
* tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (164 commits)
soc: qcom: geni: Fix unused label warning
soc: qcom: smd-rpm: Fix kerneldoc
memory: jz4780_nemc: Only request IO memory the driver will use
soc: qcom: pdr: Reorder the PD state indication ack
MAINTAINERS: Add Git repository for memory controller drivers
memory: brcmstb_dpfe: Fix language typo
memory: samsung: exynos5422-dmc: Correct white space issues
memory: samsung: exynos-srom: Correct alignment
memory: pl172: Enclose macro argument usage in parenthesis
memory: of: Correct kerneldoc
memory: omap-gpmc: Fix language typo
memory: omap-gpmc: Correct white space issues
memory: omap-gpmc: Use 'unsigned int' for consistency
memory: omap-gpmc: Enclose macro argument usage in parenthesis
memory: omap-gpmc: Correct kerneldoc
memory: mvebu-devbus: Align with open parenthesis
memory: mvebu-devbus: Add missing braces to all arms of if statement
memory: bt1-l2-ctl: Add blank lines after declarations
soc: TI knav_qmss: make symbol 'knav_acc_range_ops' static
firmware: ti_sci: Replace HTTP links with HTTPS ones
...
Pull crypto updates from Herbert Xu:
"API:
- Add support for allocating transforms on a specific NUMA Node
- Introduce the flag CRYPTO_ALG_ALLOCATES_MEMORY for storage users
Algorithms:
- Drop PMULL based ghash on arm64
- Fixes for building with clang on x86
- Add sha256 helper that does the digest in one go
- Add SP800-56A rev 3 validation checks to dh
Drivers:
- Permit users to specify NUMA node in hisilicon/zip
- Add support for i.MX6 in imx-rngc
- Add sa2ul crypto driver
- Add BA431 hwrng driver
- Add Ingenic JZ4780 and X1000 hwrng driver
- Spread IRQ affinity in inside-secure and marvell/cesa"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (157 commits)
crypto: sa2ul - Fix inconsistent IS_ERR and PTR_ERR
hwrng: core - remove redundant initialization of variable ret
crypto: x86/curve25519 - Remove unused carry variables
crypto: ingenic - Add hardware RNG for Ingenic JZ4780 and X1000
dt-bindings: RNG: Add Ingenic RNG bindings.
crypto: caam/qi2 - add module alias
crypto: caam - add more RNG hw error codes
crypto: caam/jr - remove incorrect reference to caam_jr_register()
crypto: caam - silence .setkey in case of bad key length
crypto: caam/qi2 - create ahash shared descriptors only once
crypto: caam/qi2 - fix error reporting for caam_hash_alloc
crypto: caam - remove deadcode on 32-bit platforms
crypto: ccp - use generic power management
crypto: xts - Replace memcpy() invocation with simple assignment
crypto: marvell/cesa - irq balance
crypto: inside-secure - irq balance
crypto: ecc - SP800-56A rev 3 local public key validation
crypto: dh - SP800-56A rev 3 local public key validation
crypto: dh - check validity of Z before export
lib/mpi: Add mpi_sub_ui()
...
kobject_init_and_add() takes reference even when it fails.
If this function returns an error, kobject_put() must be called to
properly clean up the memory associated with the object.
Callback function fw_cfg_sysfs_release_entry() in kobject_put()
can handle the pointer "entry" properly.
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Link: https://lore.kernel.org/r/20200613190533.15712-1-wu000273@umn.edu
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
- TI K3 Ring Accelerator updates
- Few non critical warining fixes
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Merge tag 'drivers_soc_for_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into arm/drivers
SOC: TI Keystone driver update for v5.9
- TI K3 Ring Accelerator updates
- Few non critical warining fixes
* tag 'drivers_soc_for_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
soc: TI knav_qmss: make symbol 'knav_acc_range_ops' static
firmware: ti_sci: Replace HTTP links with HTTPS ones
soc: ti/ti_sci_protocol.h: drop a duplicated word + clarify
soc: ti: k3: fix semicolon.cocci warnings
soc: ti: k3-ringacc: fix: warn: variable dereferenced before check 'ring'
dmaengine: ti: k3-udma: Switch to k3_ringacc_request_rings_pair
soc: ti: k3-ringacc: separate soc specific initialization
soc: ti: k3-ringacc: add request pair of rings api.
soc: ti: k3-ringacc: add ring's flags to dump
soc: ti: k3-ringacc: Move state tracking variables under a struct
dt-bindings: soc: ti: k3-ringacc: convert bindings to json-schema
Link: https://lore.kernel.org/r/1595711814-7015-1-git-send-email-santosh.shilimkar@oracle.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Fix the layering violation in the use of the EFI runtime services
availability mask in users of the 'efivars' abstraction
- Revert build fix for GCC v4.8 which is no longer supported
- Clean up some x86 EFI stub details, some of which are borderline bugs
that copy around garbage into padding fields - let's fix these
out of caution.
- Fix build issues while working on RISC-V support
- Avoid --whole-archive when linking the stub on arm64
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'efi-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master
Pull EFI fixes from Ingo Molnar:
"Various EFI fixes:
- Fix the layering violation in the use of the EFI runtime services
availability mask in users of the 'efivars' abstraction
- Revert build fix for GCC v4.8 which is no longer supported
- Clean up some x86 EFI stub details, some of which are borderline
bugs that copy around garbage into padding fields - let's fix these
out of caution.
- Fix build issues while working on RISC-V support
- Avoid --whole-archive when linking the stub on arm64"
* tag 'efi-urgent-2020-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: Revert "efi/x86: Fix build with gcc 4"
efi/efivars: Expose RT service availability via efivars abstraction
efi/libstub: Move the function prototypes to header file
efi/libstub: Fix gcc error around __umoddi3 for 32 bit builds
efi/libstub/arm64: link stub lib.a conditionally
efi/x86: Only copy upto the end of setup_header
efi/x86: Remove unused variables
Add support for the Inline Crypto Engine (ICE) key programming interface
that's needed for the ufs-qcom driver to use inline encryption on
Snapdragon SoCs. This interface consists of two SCM calls: one to program
a key into a keyslot, and one to invalidate a keyslot.
Although the UFS specification defines a standard way to do this, on these
SoCs the Linux kernel isn't permitted to access the needed crypto
configuration registers directly; these SCM calls must be used instead.
Link: https://lore.kernel.org/r/20200710072013.177481-2-ebiggers@kernel.org
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
For firmware on the Turris MOX (Armada 3720 based board), add support
ECDSA signatures via debugfs.
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Merge tag 'mvebu-drivers-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/drivers
mvebu drivers for 5.9 (part 1)
For firmware on the Turris MOX (Armada 3720 based board), add support
ECDSA signatures via debugfs.
* tag 'mvebu-drivers-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu:
firmware: turris-mox-rwtm: add debugfs documentation
firmware: turris-mox-rwtm: support ECDSA signatures via debugfs
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
For RPMh this fixes an issue where ktime was used during suspend, allows
the driver to be used on ARM targets and some minor cleanups.
It adds support for the latest format version in the socinfo driver and
adds identifiers for SM8250 and SDM630.
SMD-RPM gains compatibles for MSM8994 and MSM8936 and the Qualcomm SCM
gains compatibles MSM8994 and IPQ8074.
The GENI core code gains interconnect path voting and performance level
support, with subsequent patches integrating this with the SPI, I2C,
UART and QSPI drivers.
Following this the KGDB support for the GENI serial driver is improved,
the performance related to chip-select is improved for SPI and QSPI.
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Merge tag 'qcom-drivers-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers
Qualcomm driver updates for v5.9
For RPMh this fixes an issue where ktime was used during suspend, allows
the driver to be used on ARM targets and some minor cleanups.
It adds support for the latest format version in the socinfo driver and
adds identifiers for SM8250 and SDM630.
SMD-RPM gains compatibles for MSM8994 and MSM8936 and the Qualcomm SCM
gains compatibles MSM8994 and IPQ8074.
The GENI core code gains interconnect path voting and performance level
support, with subsequent patches integrating this with the SPI, I2C,
UART and QSPI drivers.
Following this the KGDB support for the GENI serial driver is improved,
the performance related to chip-select is improved for SPI and QSPI.
* tag 'qcom-drivers-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (35 commits)
soc: qcom: geni: Fix NULL pointer dereference
tty: serial: qcom-geni-serial: Drop the icc bw votes in suspend for console
serial: qcom_geni_serial: Always use 4 bytes per TX FIFO word
serial: qcom_geni_serial: Make kgdb work even if UART isn't console
spi: spi-geni-qcom: Get rid of most overhead in prepare_message()
spi: spi-geni-qcom: Set the clock properly at runtime resume
spi: spi-geni-qcom: Avoid clock setting if not needed
spi: spi-qcom-qspi: Set an autosuspend delay of 250 ms
spi: spi-qcom-qspi: Avoid clock setting if not needed
spi: spi-qcom-qspi: Use OPP API to set clk/perf state
firmware: qcom_scm: Add msm8994 compatible
firmware: qcom_scm: Fix legacy convention SCM accessors
<linux/of.h>: add stub for of_get_next_parent() to fix qcom build error
dt-bindings: firmware: qcom: Add compatible for IPQ8074 SoC
spi: spi-geni-qcom: Use OPP API to set clk/perf state
tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state
spi: spi-qcom-qspi: Add interconnect support
spi: spi-geni-qcom: Add interconnect support
spi: spi-geni-qcom: Combine the clock setting code
tty: serial: qcom_geni_serial: Add interconnect support
...
Link: https://lore.kernel.org/r/20200721044812.3429652-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Update SCU irq code to call pm_system_wakeup() in general MU IRQ
handler, so that system can be waked up when MU IRQ arrives.
- Move i.MX SCU soc driver into imx firmware folder to get it
initialized from i.MX SCU firmware driver.
- Clean up soc-imx-scu driver a bit by using devm_kasprintf().
- Correct postfix setting for cm40 power domain in scu-pd driver.
- Add resource management support for IMX_SCU firmware driver.
- Add more cm4 resources to i.MX SCU power domain driver.
- Select ARM_GIC_V3 from SOC_IMX8M for being able to use GICv3 driver
in AARCH32 mode Linux on AARCH64 hardware.
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Merge tag 'imx-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers
i.MX drivers change for 5.9:
- Update SCU irq code to call pm_system_wakeup() in general MU IRQ
handler, so that system can be waked up when MU IRQ arrives.
- Move i.MX SCU soc driver into imx firmware folder to get it
initialized from i.MX SCU firmware driver.
- Clean up soc-imx-scu driver a bit by using devm_kasprintf().
- Correct postfix setting for cm40 power domain in scu-pd driver.
- Add resource management support for IMX_SCU firmware driver.
- Add more cm4 resources to i.MX SCU power domain driver.
- Select ARM_GIC_V3 from SOC_IMX8M for being able to use GICv3 driver
in AARCH32 mode Linux on AARCH64 hardware.
* tag 'imx-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
soc: imx: select ARM_GIC_V3 for i.MX8M
firmware: imx: Move i.MX SCU soc driver into imx firmware folder
firmware: imx: scu-pd: add more cm4 resources
firmware: imx: add resource management api
firmware: imx: scu-pd: fix cm40 power domain
soc: imx: scu: use devm_kasprintf
firmware: imx: make sure MU irq can wake up system from suspend mode
Link: https://lore.kernel.org/r/20200720085536.24138-1-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The firmware on Turris MOX secure processor offers signing messages
with ECDSA private key stored in protected OTP memory.
The optimal solution would be to register an akcipher provider via
kernel's crypto API, but crypto API does not yet support accessing
akcipher API from userspace (and probably won't for some time, see
https://www.spinics.net/lists/linux-crypto/msg38388.html).
At first I tried to put this via standard sysfs API, but the way I
designed it is not compatible with sysfs's standard "one file per
attribute".
This patch therefore adds support for accessing this signature
generation mechanism via debugfs. Since CZ.NIC's Turris MOX is the only
user of this module, the potential future change to akcipher API should
not cause problems, since we can just change our userspace software then.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
- Fix kernel text addresses for relocatable images booting using EFI
and with KASLR disabled so that they match the vmlinux ELF binary.
- Fix unloading and unbinding of PMU driver modules.
- Fix generic mmiowb() when writeX() is called from preemptible context
(reported by the riscv folks).
- Fix ptrace hardware single-step interactions with signal handlers,
system calls and reverse debugging.
- Fix reporting of 64-bit x0 register for 32-bit tasks via 'perf_regs'.
- Add comments describing syscall entry/exit tracing ABI.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux into master
Pull arm64 fixes from Will Deacon:
"A batch of arm64 fixes.
Although the diffstat is a bit larger than we'd usually have at this
stage, a decent amount of it is the addition of comments describing
our syscall tracing behaviour, and also a sweep across all the modular
arm64 PMU drivers to make them rebust against unloading and unbinding.
There are a couple of minor things kicking around at the moment (CPU
errata and module PLTs for very large modules), but I'm not expecting
any significant changes now for us in 5.8.
- Fix kernel text addresses for relocatable images booting using EFI
and with KASLR disabled so that they match the vmlinux ELF binary.
- Fix unloading and unbinding of PMU driver modules.
- Fix generic mmiowb() when writeX() is called from preemptible
context (reported by the riscv folks).
- Fix ptrace hardware single-step interactions with signal handlers,
system calls and reverse debugging.
- Fix reporting of 64-bit x0 register for 32-bit tasks via
'perf_regs'.
- Add comments describing syscall entry/exit tracing ABI"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
drivers/perf: Prevent forced unbinding of PMU drivers
asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible()
arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP
arm64: ptrace: Use NO_SYSCALL instead of -1 in syscall_trace_enter()
arm64: syscall: Expand the comment about ptrace and syscall(-1)
arm64: ptrace: Add a comment describing our syscall entry/exit trap ABI
arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return
arm64: ptrace: Override SPSR.SS when single-stepping is enabled
arm64: ptrace: Consistently use pseudo-singlestep exceptions
drivers/perf: Fix kernel panic when rmmod PMU modules during perf sampling
efi/libstub/arm64: Retain 2MB kernel Image alignment if !KASLR
This has a few cleanups and the addition of a new mechanism to query
debug information from the BPMP.
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Merge tag 'tegra-for-5.9-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers
firmware: tegra: Changes for v5.9-rc1
This has a few cleanups and the addition of a new mechanism to query
debug information from the BPMP.
* tag 'tegra-for-5.9-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
firmware: tegra: Update BPMP ABI
firmware: tegra: Add support for in-band debug
firmware: tegra: Prepare for supporting in-band debugfs
firmware: tegra: Use consistent return variable name
firmware: tegra: Add return code checks and increase debugfs size
Link: https://lore.kernel.org/r/20200717161300.1661002-2-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Kbuild test robot reports the following sparse warning:
drivers/firmware/arm_scmi/clock.c:142:21:
sparse: Using plain integer as NULL pointer
Use NULL pointer instead of integer 0 for rate pointer and fix the
warning.
Link: https://lore.kernel.org/r/20200717140405.17905-1-sudeep.holla@arm.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Now that there's a function that calculates the SHA-256 digest of a
buffer in one step, use it instead of sha256_init() + sha256_update() +
sha256_final().
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Cc: linux-efi@vger.kernel.org
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Add support for retrieving BPMP debug information via in-band messaging
as opposed to using shared-memory which older BPMP firmware used. Note
that it is possible to detect at runtime whether the BPMP firmware being
used supports the in-band messaging for retrieving the debug
informaation. Therefore, if the BPMP firmware supports the in-band
messaging for debug use this and otherwise fall-back to using shared
memory.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Currently, BPMP debug information is accessible via the Linux debugfs
file-system using a shared-memory scheme. More recent BPMP firmware now
supports accessing the debug information by in-band messaging which does
not require shared-memory. To prepare for adding in-band debugfs support
for the BPMP, move the shared-memory specific initialisation from the
tegra_bpmp_init_debugfs() into a sub-function.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Most functions in the BPMP driver use 'err' as the return variable
name but there are a few places that use 'ret'. Let's use 'err' to
be consistent.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add checking of the BPMP-FW return code values for MRQ_DEBUGFS calls.
Also, development versions of the firmware may have debugfs with a
directory structure larger than 256 KiB. Hence increase the size of the
memory buffer to accommodate those firmware revisions.
And finally, ensure that no access outside of allocated memory buffer
happens in case BPMP-FW returns an invalid response size (nbytes) from
mrq_debugfs_dumpdir() call.
Signed-off-by: Timo Alho <talho@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The main addition for this time is the support for platform notifications.
SCMI protocol specification allows the platform to signal events to the
interested agents via notification messages. We are adding support for
the dispatch and delivery of such notifications to the interested users
inside the kernel.
Other than that, there are minor changes like checking and using the
fast_switch capability quering the firmware instead of doing it
unconditionally(using polling mode transfer), cosmetic trace update,
use of HAVE_ARM_SMCCC_DISCOVERY instead of ARM_PSCI_FW and a fix in
scmi clock registration logic for all the clocks with discrete rates.
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Merge tag 'scmi-updates-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers
ARM SCMI/SCPI updates for v5.9
The main addition for this time is the support for platform notifications.
SCMI protocol specification allows the platform to signal events to the
interested agents via notification messages. We are adding support for
the dispatch and delivery of such notifications to the interested users
inside the kernel.
Other than that, there are minor changes like checking and using the
fast_switch capability quering the firmware instead of doing it
unconditionally(using polling mode transfer), cosmetic trace update,
use of HAVE_ARM_SMCCC_DISCOVERY instead of ARM_PSCI_FW and a fix in
scmi clock registration logic for all the clocks with discrete rates.
* tag 'scmi-updates-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Remove fixed size fields from reports/scmi_event_header
firmware: arm_scmi: Remove unneeded __packed attribute
firmware: arm_scmi: Remove zero-length array in SCMI notifications
firmware: arm_scmi: Provide a missing function param description
clk: scmi: Fix min and max rate when registering clocks with discrete rates
firmware: arm_scmi: Keep the discrete clock rates sorted
firmware: arm_scmi: Add base notifications support
firmware: arm_scmi: Add reset notifications support
firmware: arm_scmi: Add sensor notifications support
firmware: arm_scmi: Add perf notifications support
firmware: arm_scmi: Add power notifications support
firmware: arm_scmi: Enable notification core
firmware: arm_scmi: Add notification dispatch and delivery
firmware: arm_scmi: Add notification callbacks-registration
firmware: arm_scmi: Add notification protocol-registration
firmware: arm_scmi: Fix SCMI genpd domain probing
firmware: arm_scmi: Use HAVE_ARM_SMCCC_DISCOVERY instead of ARM_PSCI_FW
cpufreq: arm_scmi: Set fast_switch_possible conditionally
firmware: arm_scmi: Add fast_switch_possible() interface
firmware: arm_scmi: Use signed integer to report transfer status
Link: https://lore.kernel.org/r/20200713161410.12324-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This change adds a compatible for msm8994,
which requires no additional clocks for
scm to probe correctly.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200624150107.76234-2-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The move to a combined driver for the QCOM SCM hardware changed the
io_writel and io_readl helpers to use non-atomic calls, despite the
commit message saying that atomic was a better option. This breaks these
helpers on hardware that uses the old legacy convention (access fails
with a -95 return code). Switch back to using the atomic calls.
Observed as a failure routing GPIO interrupts to the Apps processor on
an IPQ8064; fix is confirmed as correctly allowing the interrupts to be
routed and observed.
Reviewed-by: Elliot Berman <eberman@codeaurora.org>
Fixes: 57d3b81671 ("firmware: qcom_scm: Remove thin wrappers")
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Link: https://lore.kernel.org/r/20200704172334.GA759@earth.li
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Since commit 82046702e2 ("efi/libstub/arm64: Replace 'preferred' offset
with alignment check"), loading a relocatable arm64 kernel at a physical
address which is not 2MB aligned and subsequently booting with EFI will
leave the Image in-place, relying on the kernel to relocate itself early
during boot. In conjunction with commit dd4bc60765 ("arm64: warn on
incorrect placement of the kernel by the bootloader"), which enables
CONFIG_RELOCATABLE by default, this effectively means that entering an
arm64 kernel loaded at an alignment smaller than 2MB with EFI (e.g. using
QEMU) will result in silent relocation at runtime.
Unfortunately, this has a subtle but confusing affect for developers
trying to inspect the PC value during a crash and comparing it to the
symbol addresses in vmlinux using tools such as 'nm' or 'addr2line';
all text addresses will be displaced by a sub-2MB offset, resulting in
the wrong symbol being identified in many cases. Passing "nokaslr" on
the command line or disabling "CONFIG_RANDOMIZE_BASE" does not help,
since the EFI stub only copies the kernel Image to a 2MB boundary if it
is not relocatable.
Adjust the EFI stub for arm64 so that the minimum Image alignment is 2MB
unless KASLR is in use.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: David Brazdil <dbrazdil@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Event reports are used to convey information describing events to the
registered user-callbacks: they are necessarily derived from the underlying
raw SCMI events' messages but they are not meant to expose or directly
mirror any of those messages data layout, which belong to the protocol
layer.
Using fixed size types for report fields, mirroring messages structure,
is at odd with this: get rid of them using more generic, equivalent,
typing.
Substitute scmi_event_header fixed size fields with generic types too and
shuffle around fields definitions to minimize implicit padding while
adapting involved functions.
Link: https://lore.kernel.org/r/20200710133919.39792-3-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
gcc as well as clang now produce warnings for missing kerneldoc function
parameter.
Fix the following W=1 kernel build warning:
drivers/firmware/arm_scmi/smc.c:32:
warning: Function parameter or member 'shmem_lock' not described in 'scmi_smc'
Link: https://lore.kernel.org/r/20200709153155.22573-1-sudeep.holla@arm.com
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
The i.MX SCU soc driver depends on SCU firmware driver, so it has to
use platform driver model for proper defer probe operation, since
it has no device binding in DT file, a simple platform device is
created together inside the platform driver. To make it more clean,
we can just move the entire SCU soc driver into imx firmware folder
and initialized by i.MX SCU firmware driver.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
- Fix workaround for CPU erratum #1418040 to disable the compat vDSO
- Fix OOPs when single-stepping with KGDB
- Fix memory attributes for hypervisor device mappings at EL2
- Fix memory leak in PSCI and remove useless variable assignment
- Fix up some comments and asm labels in our entry code
- Fix broken register table formatting in our generated html docs
- Fix missing NULL sentinel in CPU errata workaround list
- Fix patching of branches in alternative instruction sections
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"An unfortunately large collection of arm64 fixes for -rc5.
Some of this is absolutely trivial, but the alternatives, vDSO and CPU
errata workaround fixes are significant. At least people are finding
and fixing these things, I suppose.
- Fix workaround for CPU erratum #1418040 to disable the compat vDSO
- Fix Oops when single-stepping with KGDB
- Fix memory attributes for hypervisor device mappings at EL2
- Fix memory leak in PSCI and remove useless variable assignment
- Fix up some comments and asm labels in our entry code
- Fix broken register table formatting in our generated html docs
- Fix missing NULL sentinel in CPU errata workaround list
- Fix patching of branches in alternative instruction sections"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/alternatives: don't patch up internal branches
arm64: Add missing sentinel to erratum_1463225
arm64: Documentation: Fix broken table in generated HTML
arm64: kgdb: Fix single-step exception handling oops
arm64: entry: Tidy up block comments and label numbers
arm64: Rework ARM_ERRATUM_1414080 handling
arm64: arch_timer: Disable the compat vdso for cores affected by ARM64_WORKAROUND_1418040
arm64: arch_timer: Allow an workaround descriptor to disable compat vdso
arm64: Introduce a way to disable the 32bit vdso
arm64: entry: Fix the typo in the comment of el1_dbg()
drivers/firmware/psci: Assign @err directly in hotplug_tests()
drivers/firmware/psci: Fix memory leakage in alloc_init_cpu_groups()
KVM: arm64: Fix definition of PAGE_HYP_DEVICE
Instead of relying on the firmware to keep the clock rates sorted, let
us sort the list. This is not essential for clock layer but it helps
to find the min and max rates easily from the list.
Link: https://lore.kernel.org/r/20200709081705.46084-1-sudeep.holla@arm.com
Fixes: 5f6c6430e9 ("firmware: arm_scmi: add initial support for clock protocol")
Reported-and-tested-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This reverts commit 5435f73d5c, which is no longer needed now
that the minimum GCC version has been bumped to v4.9
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Commit
bf67fad19e ("efi: Use more granular check for availability for variable services")
introduced a check into the efivarfs, efi-pstore and other drivers that
aborts loading of the module if not all three variable runtime services
(GetVariable, SetVariable and GetNextVariable) are supported. However, this
results in efivarfs being unavailable entirely if only SetVariable support
is missing, which is only needed if you want to make any modifications.
Also, efi-pstore and the sysfs EFI variable interface could be backed by
another implementation of the 'efivars' abstraction, in which case it is
completely irrelevant which services are supported by the EFI firmware.
So make the generic 'efivars' abstraction dependent on the availibility of
the GetVariable and GetNextVariable EFI runtime services, and add a helper
'efivar_supports_writes()' to find out whether the currently active efivars
abstraction supports writes (and wire it up to the availability of
SetVariable for the generic one).
Then, use the efivar_supports_writes() helper to decide whether to permit
efivarfs to be mounted read-write, and whether to enable efi-pstore or the
sysfs EFI variable interface altogether.
Fixes: bf67fad19e ("efi: Use more granular check for availability for variable services")
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The prototype of the functions handle_kernel_image & efi_enter_kernel
are defined in efi-stub.c which may result in a compiler warnings if
-Wmissing-prototypes is set in gcc compiler.
Move the prototype to efistub.h to make the compiler happy.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Link: https://lore.kernel.org/r/20200706172609.25965-2-atish.patra@wdc.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
32bit gcc doesn't support modulo operation on 64 bit data. It results in
a __umoddi3 error while building EFI for 32 bit.
Use bitwise operations instead of modulo operations to fix the issue.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Link: https://lore.kernel.org/r/20200625234516.31406-2-atish.patra@wdc.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The return value of down_and_up_cpus() can be assigned to @err directly.
With that, the useless assignment to @err with zero can be dropped.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20200630075943.203954-1-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
The CPU mask (@tmp) should be released on failing to allocate
@cpu_groups or any of its elements. Otherwise, it leads to memory
leakage because the CPU mask variable is dynamically allocated
when CONFIG_CPUMASK_OFFSTACK is enabled.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20200630075227.199624-1-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
Some Makefiles already pass -ffreestanding unconditionally.
For example, arch/arm64/lib/Makefile, arch/x86/purgatory/Makefile.
No problem report so far about hard-coding this option. So, we can
assume all supported compilers know -ffreestanding.
I confirmed GCC 4.8 and Clang manuals document this option.
Get rid of cc-option from -ffreestanding.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Some Makefiles already pass -fno-stack-protector unconditionally.
For example, arch/arm64/kernel/vdso/Makefile, arch/x86/xen/Makefile.
No problem report so far about hard-coding this option. So, we can
assume all supported compilers know -fno-stack-protector.
GCC 4.8 and Clang support this option (https://godbolt.org/z/_HDGzN)
Get rid of cc-option from -fno-stack-protector.
Remove CONFIG_CC_HAS_STACKPROTECTOR_NONE, which is always 'y'.
Note:
arch/mips/vdso/Makefile adds -fno-stack-protector twice, first
unconditionally, and second conditionally. I removed the second one.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
1. Addition of ARM SMCCC ARCH_SOC_ID support
2. Usage of the custom soc attribute groups already supported in the
infrastucture instead of device_create_file which eliminates the need
for any cleanup when soc is unregistered
3. Minor clean up switching to use standard DEVICE_ATTR_RO() instead of
direct __ATTR
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Merge tag 'soc-attr-updates-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers
SoC attributes update for v5.9
1. Addition of ARM SMCCC ARCH_SOC_ID support
2. Usage of the custom soc attribute groups already supported in the
infrastucture instead of device_create_file which eliminates the need
for any cleanup when soc is unregistered
3. Minor clean up switching to use standard DEVICE_ATTR_RO() instead of
direct __ATTR
* tag 'soc-attr-updates-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: smccc: Add ARCH_SOC_ID support
ARM: OMAP2: Use custom soc attribute group instead of device_create_file
ARM: OMAP2: Switch to use DEVICE_ATTR_RO()
soc: ux500: Use custom soc attribute group instead of device_create_file
soc: ux500: Switch to use DEVICE_ATTR_RO()
soc: integrator: Use custom soc attribute group instead of device_create_file
soc: integrator: Switch to use DEVICE_ATTR_RO()
soc: realview: Use custom soc attribute group instead of device_create_file
soc: realview: Switch to use DEVICE_ATTR_RO()
Link: https://lore.kernel.org/r/20200706165312.40697-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
SMCCC v1.2 adds a new optional function SMCCC_ARCH_SOC_ID to obtain a
SiP defined SoC identification value. Add support for the same.
Also using the SoC bus infrastructure, let us expose the platform
specific SoC atrributes under sysfs.
There are various ways in which it can be represented in shortened form
for efficiency and ease of parsing for userspace. The chosen form is
described in the ABI document.
Link: https://lore.kernel.org/r/20200625095939.50861-1-sudeep.holla@arm.com
Cc: Etienne Carriere <etienne.carriere@st.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Patch fixes sparse warnings: using plain integer as NULL pointer. Replaces
equal to with logical not operator.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Richard Gong <richard.gong@intel.com>
Link: https://lore.kernel.org/r/1591193212-15082-1-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Extend Intel Remote System Update (RSU) driver to get decision
configuration management firmware (DCMF) versions and max retry
parameter value.
Signed-off-by: Richard Gong <richard.gong@intel.com>
Link: https://lore.kernel.org/r/1592231348-31334-4-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Extend Intel Stratix10 service layer driver to support new RSU DCMF
versions and max retry parameter.
DCMF = Decision Configuration Management Firmware. The max retry parameter
is the maximum times the images is allowed to reload itself before giving
up and starting RSU failover flow.
Signed-off-by: Richard Gong <richard.gong@intel.com>
Link: https://lore.kernel.org/r/1592231348-31334-3-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make SCMI base protocol register with the notification core.
Link: https://lore.kernel.org/r/20200701155348.52864-10-cristian.marussi@arm.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Make SCMI power protocol register with the notification core.
Link: https://lore.kernel.org/r/20200701155348.52864-6-cristian.marussi@arm.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Initialize and enable SCMI notifications core support during bus/driver
probe phase, so that protocols can start registering their supported
events during their initialization.
Link: https://lore.kernel.org/r/20200701155348.52864-5-cristian.marussi@arm.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add the core SCMI notifications dispatch and delivery support logic
which is able to dispatch well-known received events from the Rx
interrupt handler to the dedicated deferred worker. From there, it will
deliver the events to the registered users' callbacks.
Dispatch and delivery support is just added here, still not enabled.
Link: https://lore.kernel.org/r/20200701155348.52864-4-cristian.marussi@arm.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add the core SCMI notifications callbacks-registration support: allow
users to register their own callbacks against the desired events.
Whenever a registration request is issued against a still non existent
event, mark such request as pending for later processing, in order to
account for possible late initializations of SCMI Protocols associated
to loadable drivers.
Link: https://lore.kernel.org/r/20200701155348.52864-3-cristian.marussi@arm.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add the core SCMI notifications protocol-registration support: allow
protocols to register their own set of supported events, during their
initialization phase. Notification core can track multiple platform
instances by their handles.
Link: https://lore.kernel.org/r/20200701155348.52864-2-cristian.marussi@arm.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
When, at probe time, an SCMI communication failure inhibits the capacity
to query power domains states, such domains should be skipped.
Registering partially initialized SCMI power domains with genpd will
causes kernel panic.
arm-scmi timed out in resp(caller: scmi_power_state_get+0xa4/0xd0)
scmi-power-domain scmi_dev.2: failed to get state for domain 9
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
ESR = 0x96000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=00000009f3691000
[0000000000000000] pgd=00000009f1ca0003, p4d=00000009f1ca0003, pud=00000009f35ea003, pmd=0000000000000000
Internal error: Oops: 96000006 [#1] PREEMPT SMP
CPU: 2 PID: 381 Comm: bash Not tainted 5.8.0-rc1-00011-gebd118c2cca8 #2
Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development Platform, BIOS EDK II Jan 3 2020
Internal error: Oops: 96000006 [#1] PREEMPT SMP
pstate: 80000005 (Nzcv daif -PAN -UAO BTYPE=--)
pc : of_genpd_add_provider_onecell+0x98/0x1f8
lr : of_genpd_add_provider_onecell+0x48/0x1f8
Call trace:
of_genpd_add_provider_onecell+0x98/0x1f8
scmi_pm_domain_probe+0x174/0x1e8
scmi_dev_probe+0x90/0xe0
really_probe+0xe4/0x448
driver_probe_device+0xfc/0x168
device_driver_attach+0x7c/0x88
bind_store+0xe8/0x128
drv_attr_store+0x2c/0x40
sysfs_kf_write+0x4c/0x60
kernfs_fop_write+0x114/0x230
__vfs_write+0x24/0x50
vfs_write+0xbc/0x1e0
ksys_write+0x70/0xf8
__arm64_sys_write+0x24/0x30
el0_svc_common.constprop.3+0x94/0x160
do_el0_svc+0x2c/0x98
el0_sync_handler+0x148/0x1a8
el0_sync+0x158/0x180
Do not register any power domain that failed to be queried with genpd.
Fixes: 898216c97e ("firmware: arm_scmi: add device power domain support using genpd")
Link: https://lore.kernel.org/r/20200619220330.12217-1-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Commit e5bfb21d98 ("firmware: smccc: Add HAVE_ARM_SMCCC_DISCOVERY to
identify SMCCC v1.1 and above") introduced new config option to identify
the availability of SMCCC discoverability of version and features
transparently hiding the indirect dependency on ARM_PSCI_FW.
Commit 5a897e3ab4 ("firmware: arm_scmi: fix psci dependency") just
worked around the build dependency making SCMI SMC/HVC transport depend
on ARM_PSCI_FW at the time. Since it really just relies on SMCCC directly
and not on ARM_PSCI_FW, let us move to use CONFIG_HAVE_ARM_SMCCC_DISCOVERY
instead of CONFIG_ARM_PSCI_FW.
Link: https://lore.kernel.org/r/20200625101937.51939-1-sudeep.holla@arm.com
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Add a new fast_switch_possible interface to the existing perf_ops to
export the information of whether or not fast_switch is possible for a
given device.
This can be used by the cpufreq driver and framework to choose proper
mechanism for frequency change.
Link: https://lore.kernel.org/r/20200617094332.8391-1-nicola.mazzucato@arm.com
Suggested-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Nicola Mazzucato <nicola.mazzucato@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Currently the trace event 'scmi_xfer_end' reports the status of the
transfer using the unsigned status field read from the firmware which
may not be easy to interpret. It may also miss to emit any timeouts
that happen in the driver resulting in emitting garbage in the status
field in those scenarios.
Let us use signed integer so that error values are emitted out after
they are mapped from firmware error formats to standard linux error
codes. While at this, also include any timeouts in the driver itself.
Link: https://lore.kernel.org/r/20200609134503.55860-1-sudeep.holla@arm.com
Cc: Jim Quinlan <james.quinlan@broadcom.com>
Cc: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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>
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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>
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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
for 5.8, please pull the following:
- Andy provides a fix for the Raspberry Pi firmware driver to print the
correct time upon boot. This is a fallout from a converstion to use
the ptT format
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Merge tag 'arm-soc/for-5.8/drivers-fixes' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers fixes
for 5.8, please pull the following:
- Andy provides a fix for the Raspberry Pi firmware driver to print the
correct time upon boot. This is a fallout from a converstion to use
the ptT format
* tag 'arm-soc/for-5.8/drivers-fixes' of https://github.com/Broadcom/stblinux:
ARM: bcm2835: Fix integer overflow in rpi_firmware_print_firmware_revision()
Link: https://lore.kernel.org/r/20200619202250.19029-2-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
When copying the setup_header into the boot_params buffer, only the data
that is actually part of the setup_header should be copied.
efi_pe_entry() currently copies the entire second sector, which
initializes some of the fields in boot_params beyond the setup_header
with garbage (i.e. part of the real-mode boot code gets copied into
those fields).
This does not cause any issues currently because the fields that are
overwritten are padding, BIOS EDD information that won't get used, and
the E820 table which will get properly filled in later.
Fix this to only copy data that is actually part of the setup_header
structure.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Commit
987053a300 ("efi/x86: Move command-line initrd loading to efi_main")
made the ramdisk_addr/ramdisk_size variables in efi_pe_entry unused, but
neglected to delete them.
Delete these unused variables.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Add more cm4 resources, then linux could use cm4's i2c/lpuart and
could kick cm4 core.
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Add resource management API, when we have multiple
partition running together, resources not owned to current
partition should not be used.
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The postfix needs to be false. Alought compiler use 0 for postfix now,
and take start_from as 0, it is better we add explicit false to postfix.
Fixes: 705dcca91d0a("firmware: imx: scu-pd: add power domain for I2C and INTMUX in CM40 SS")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The firmware clocks driver was previously probed through a platform_device
created by the firmware driver.
Since we will now have a node for that clocks driver, we need to create the
device only in the case where there's no node for it already.
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/72114c4287ebda2dbd952ea238d4489d359897e5.1592210452.git-series.maxime@cerno.tech
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
IRQF_NO_SUSPEND flag is set for MU IRQ of IPC work, but with this
flag set, IRQD_WAKEUP_ARMED flag will NOT be set during
suspend_device_irq() phase, then when MU IRQ arrives, it will NOT
wake up system from suspend.
To fix this issue, pm_system_wakeup() is called in general MU IRQ
handler to make sure system can be waked up when MU IRQ arrives.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
On 32-bit ARM, we may boot at HYP mode, or with the MMU and caches off
(or both), even though the EFI spec does not actually support this.
While booting at HYP mode is something we might tolerate, fiddling
with the caches is a more serious issue, as disabling the caches is
tricky to do safely from C code, and running without the Dcache makes
it impossible to support unaligned memory accesses, which is another
explicit requirement imposed by the EFI spec.
So take note of the CPU mode and MMU state in the EFI stub diagnostic
output so that we can easily diagnose any issues that may arise from
this. E.g.,
EFI stub: Entering in SVC mode with MMU enabled
Also, capture the CPSR and SCTLR system register values at EFI stub
entry, and after ExitBootServices() returns, and check whether the
MMU and Dcache were disabled at any point. If this is the case, a
diagnostic message like the following will be emitted:
efi: [Firmware Bug]: EFI stub was entered with MMU and Dcache disabled, please fix your firmware!
efi: CPSR at EFI stub entry : 0x600001d3
efi: SCTLR at EFI stub entry : 0x00c51838
efi: CPSR after ExitBootServices() : 0x600001d3
efi: SCTLR after ExitBootServices(): 0x00c50838
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
On arm64, the EFI stub is built into the kernel proper, and so the stub
can refer to its symbols directly. Therefore, the practice of using EFI
configuration tables to pass information between them is never needed,
so we can omit any code consuming such tables when building for arm64.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
time64_t is 64-bit width type, we are not supposed to supply lesser ones
as in the case of rpi_firmware_print_firmware_revision() after the commit
4a60f58ee0 ("ARM: bcm2835: Switch to use %ptT"). Use temporary variable
of time64_t type to correctly handle lesser types.
Fixes: 4a60f58ee0 ("ARM: bcm2835: Switch to use %ptT")
Reported-by: Stefan Wahren <wahrenst@gmx.net>
Reported-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Revieved-by: Petr Mladek <pmladek@suse.com>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Link: https://lore.kernel.org/r/20200616163139.4229-1-andriy.shevchenko@linux.intel.com
In most cases, such as CONFIG_ACPI_CUSTOM_DSDT and
CONFIG_ACPI_TABLE_UPGRADE, boot-time modifications to firmware tables
are tied to specific Kconfig options. Currently this is not the case
for modifying the ACPI SSDT via the efivar_ssdt kernel command line
option and associated EFI variable.
This patch adds CONFIG_EFI_CUSTOM_SSDT_OVERLAYS, which defaults
disabled, in order to allow enabling or disabling that feature during
the build.
Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Jones <pjones@redhat.com>
Link: https://lore.kernel.org/r/20200615202408.2242614-1-pjones@redhat.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Commit 9302c1bb8e ("efi/libstub: Rewrite file I/O routine") introduced a
regression that made a couple of (badly configured) systems fail to
boot [1]: Until 5.6, we silently accepted Unix-style file separators in
EFI paths, which might violate the EFI standard, but are an easy to make
mistake. This fix restores the pre-5.7 behaviour.
[1] https://bbs.archlinux.org/viewtopic.php?id=256273
Fixes: 9302c1bb8e ("efi/libstub: Rewrite file I/O routine")
Signed-off-by: Philipp Fent <fent@in.tum.de>
Link: https://lore.kernel.org/r/20200615115109.7823-1-fent@in.tum.de
[ardb: rewrite as chained if/else statements]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
Lastly, make use of the sizeof_field() helper instead of an open-coded
version.
This issue was found with the help of Coccinelle and audited _manually_.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20200527171425.GA4053@embeddedor
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
kobject_init_and_add() takes reference even when it fails.
If this function returns an error, kobject_put() must be called to
properly clean up the memory associated with the object. Previous
commit "b8eb718348b8" fixed a similar problem.
Fixes: 0bb549052d ("efi: Add esrt support")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Link: https://lore.kernel.org/r/20200528183804.4497-1-wu000273@umn.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Ingo suggested that since the new sched_set_*() functions are
implemented using the 'nocheck' variants, they really shouldn't ever
fail, so remove the return value.
Cc: axboe@kernel.dk
Cc: daniel.lezcano@linaro.org
Cc: sudeep.holla@arm.com
Cc: airlied@redhat.com
Cc: broonie@kernel.org
Cc: paulmck@kernel.org
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Because SCHED_FIFO is a broken scheduler model (see previous patches)
take away the priority field, the kernel can't possibly make an
informed decision.
Effectively changes prio from 99 to 50.
XXX this thing is horrific, it basically open-codes a stop-machine and
idle.
Cc: daniel.lezcano@linaro.org
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Commit
bbf8e8b0fe ("efi/libstub: Optimize for size instead of speed")
changed the optimization level for the EFI stub to -Os from -O2.
Andrey Ignatov reports that this breaks the build with gcc 4.8.5.
Testing on godbolt.org, the combination of -Os,
-fno-asynchronous-unwind-tables, and ms_abi functions doesn't work,
failing with the error:
sorry, unimplemented: ms_abi attribute requires
-maccumulate-outgoing-args or subtarget optimization implying it
This does appear to work with gcc 4.9 onwards.
Add -maccumulate-outgoing-args explicitly to unbreak the build with
pre-4.9 versions of gcc.
Reported-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200605150638.1011637-1-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
- fix build rules in binderfs sample
- fix build errors when Kbuild recurses to the top Makefile
- covert '---help---' in Kconfig to 'help'
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Merge tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- fix build rules in binderfs sample
- fix build errors when Kbuild recurses to the top Makefile
- covert '---help---' in Kconfig to 'help'
* tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
treewide: replace '---help---' in Kconfig files with 'help'
kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
samples: binderfs: really compile this sample and fix build issues
Since commit 84af7a6194 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.
This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.
There are a variety of indentation styles found.
a) 4 spaces + '---help---'
b) 7 spaces + '---help---'
c) 8 spaces + '---help---'
d) 1 space + 1 tab + '---help---'
e) 1 tab + '---help---' (correct indentation)
f) 1 tab + 1 space + '---help---'
g) 1 tab + 2 spaces + '---help---'
In order to convert all of them to 1 tab + 'help', I ran the
following commend:
$ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Merge the state of the locking kcsan branch before the read/write_once()
and the atomics modifications got merged.
Squash the fallout of the rebase on top of the read/write once and atomic
fallback work into the merge. The history of the original branch is
preserved in tag locking-kcsan-2020-06-02.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Define a new initializer for the mmap locking api. Initially this just
evaluates to __RWSEM_INITIALIZER as the API is defined as wrappers around
rwsem.
Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Liam Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ying Han <yinghan@google.com>
Link: http://lkml.kernel.org/r/20200520052908.204642-9-walken@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include
of the latter in the middle of asm includes. Fix this up with the aid of
the below script and manual adjustments here and there.
import sys
import re
if len(sys.argv) is not 3:
print "USAGE: %s <file> <header>" % (sys.argv[0])
sys.exit(1)
hdr_to_move="#include <linux/%s>" % sys.argv[2]
moved = False
in_hdrs = False
with open(sys.argv[1], "r") as f:
lines = f.readlines()
for _line in lines:
line = _line.rstrip('
')
if line == hdr_to_move:
continue
if line.startswith("#include <linux/"):
in_hdrs = True
elif not moved and in_hdrs:
moved = True
print hdr_to_move
print line
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The include/linux/pgtable.h is going to be the home of generic page table
manipulation functions.
Start with moving asm-generic/pgtable.h to include/linux/pgtable.h and
make the latter include asm/pgtable.h.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-3-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here is the large set of char/misc driver patches for 5.8-rc1
Included in here are:
- habanalabs driver updates, loads
- mhi bus driver updates
- extcon driver updates
- clk driver updates (approved by the clock maintainer)
- firmware driver updates
- fpga driver updates
- gnss driver updates
- coresight driver updates
- interconnect driver updates
- parport driver updates (it's still alive!)
- nvmem driver updates
- soundwire driver updates
- visorbus driver updates
- w1 driver updates
- various misc driver updates
In short, loads of different driver subsystem updates along with the
drivers as well.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc driver patches for 5.8-rc1
Included in here are:
- habanalabs driver updates, loads
- mhi bus driver updates
- extcon driver updates
- clk driver updates (approved by the clock maintainer)
- firmware driver updates
- fpga driver updates
- gnss driver updates
- coresight driver updates
- interconnect driver updates
- parport driver updates (it's still alive!)
- nvmem driver updates
- soundwire driver updates
- visorbus driver updates
- w1 driver updates
- various misc driver updates
In short, loads of different driver subsystem updates along with the
drivers as well.
All have been in linux-next for a while with no reported issues"
* tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (233 commits)
habanalabs: correctly cast u64 to void*
habanalabs: initialize variable to default value
extcon: arizona: Fix runtime PM imbalance on error
extcon: max14577: Add proper dt-compatible strings
extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()'
extcon: remove redundant assignment to variable idx
w1: omap-hdq: print dev_err if irq flags are not cleared
w1: omap-hdq: fix interrupt handling which did show spurious timeouts
w1: omap-hdq: fix return value to be -1 if there is a timeout
w1: omap-hdq: cleanup to add missing newline for some dev_dbg
/dev/mem: Revoke mappings when a driver claims the region
misc: xilinx-sdfec: convert get_user_pages() --> pin_user_pages()
misc: xilinx-sdfec: cleanup return value in xsdfec_table_write()
misc: xilinx-sdfec: improve get_user_pages_fast() error handling
nvmem: qfprom: remove incorrect write support
habanalabs: handle MMU cache invalidation timeout
habanalabs: don't allow hard reset with open processes
habanalabs: GAUDI does not support soft-reset
habanalabs: add print for soft reset due to event
habanalabs: improve MMU cache invalidation code
...
Some vendors like HPe or Dell, encode the release version of their BIOS
in the "System BIOS {Major|Minor} Release" fields of Type 0.
This information is used to know which bios release actually runs.
It could be used for some quirks, debugging sessions or inventory tasks.
A typical output for a Dell system running the 65.27 bios is :
[root@t1700 ~]# cat /sys/devices/virtual/dmi/id/bios_release
65.27
[root@t1700 ~]#
Servers that have a BMC encode the release version of their firmware in the
"Embedded Controller Firmware {Major|Minor} Release" fields of Type 0.
This information is used to know which BMC release actually runs.
It could be used for some quirks, debugging sessions or inventory tasks.
A typical output for a Dell system running the 3.75 bmc release is :
[root@t1700 ~]# cat /sys/devices/virtual/dmi/id/ec_firmware_release
3.75
[root@t1700 ~]#
Signed-off-by: Erwan Velu <e.velu@criteo.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
These are updates to SoC specific drivers that did not have
another subsystem maintainer tree to go through for some
reason:
- Some bus and memory drivers for the MIPS P5600 based
Baikal-T1 SoC that is getting added through the MIPS tree.
- There are new soc_device identification drivers for TI K3,
Qualcomm MSM8939
- New reset controller drivers for NXP i.MX8MP, Renesas
RZ/G1H, and Hisilicon hi6220
- The SCMI firmware interface can now work across ARM SMC/HVC
as a transport.
- Mediatek platforms now use a new driver for their "MMSYS"
hardware block that controls clocks and some other aspects
in behalf of the media and gpu drivers.
- Some Tegra processors have improved power management
support, including getting woken up by the PMIC and cluster
power down during idle.
- A new v4l staging driver for Tegra is added.
- Cleanups and minor bugfixes for TI, NXP, Hisilicon,
Mediatek, and Tegra.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM/SoC driver updates from Arnd Bergmann:
"These are updates to SoC specific drivers that did not have another
subsystem maintainer tree to go through for some reason:
- Some bus and memory drivers for the MIPS P5600 based Baikal-T1 SoC
that is getting added through the MIPS tree.
- There are new soc_device identification drivers for TI K3, Qualcomm
MSM8939
- New reset controller drivers for NXP i.MX8MP, Renesas RZ/G1H, and
Hisilicon hi6220
- The SCMI firmware interface can now work across ARM SMC/HVC as a
transport.
- Mediatek platforms now use a new driver for their "MMSYS" hardware
block that controls clocks and some other aspects in behalf of the
media and gpu drivers.
- Some Tegra processors have improved power management support,
including getting woken up by the PMIC and cluster power down
during idle.
- A new v4l staging driver for Tegra is added.
- Cleanups and minor bugfixes for TI, NXP, Hisilicon, Mediatek, and
Tegra"
* tag 'arm-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (155 commits)
clk: sprd: fix compile-testing
bus: bt1-axi: Build the driver into the kernel
bus: bt1-apb: Build the driver into the kernel
bus: bt1-axi: Use sysfs_streq instead of strncmp
bus: bt1-axi: Optimize the return points in the driver
bus: bt1-apb: Use sysfs_streq instead of strncmp
bus: bt1-apb: Use PTR_ERR_OR_ZERO to return from request-regs method
bus: bt1-apb: Fix show/store callback identations
bus: bt1-apb: Include linux/io.h
dt-bindings: memory: Add Baikal-T1 L2-cache Control Block binding
memory: Add Baikal-T1 L2-cache Control Block driver
bus: Add Baikal-T1 APB-bus driver
bus: Add Baikal-T1 AXI-bus driver
dt-bindings: bus: Add Baikal-T1 APB-bus binding
dt-bindings: bus: Add Baikal-T1 AXI-bus binding
staging: tegra-video: fix V4L2 dependency
tee: fix crypto select
drivers: soc: ti: knav_qmss_queue: Make knav_gp_range_ops static
soc: ti: add k3 platforms chipid module driver
dt-bindings: soc: ti: add binding for k3 platforms chipid module
...
One new platform gets added, the Realtek RTD1195, which is an older
Cortex-a7 based relative of the RTD12xx chips that are already supported
in arch/arm64. The platform may also be extended to support running
32-bit kernels on those 64-bit chips for memory-constrained machines.
In the Renesas shmobile platform, we gain support for "RZ/G1H" or R8A7742,
an eight-core chip based on Cortex-A15 and Cortex-A7 cores, originally
released in 2016 as one of the last high-end 32-bit designs.
There is ongoing cleanup for the integrator, tegra, imx, and omap2
platforms, with integrator getting very close to the goal of having
zero code in arch/arm/, and omap2 moving more of the chip specifics
from old board code into device tree files.
The Versatile Express platform is made more modular, with built-in
drivers now becoming loadable modules. This is part of a greater effort
for the Android OS to have a common kernel binary for all platforms and
any platform specific code in loadable modules.
The PXA platform drops support for Compulab's pxa2xx boards that had
rather unusual flash and PCI drivers but no known users remaining.
All device drivers specific to those boards can now get removed as
well.
Across platforms, there is ongoing cleanup, with Geert and Rob
revisiting some a lot of Kconfig options.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-soc-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC updates from Arnd Bergmann:
"One new platform gets added, the Realtek RTD1195, which is an older
Cortex-a7 based relative of the RTD12xx chips that are already
supported in arch/arm64. The platform may also be extended to support
running 32-bit kernels on those 64-bit chips for memory-constrained
machines.
In the Renesas shmobile platform, we gain support for "RZ/G1H" or
R8A7742, an eight-core chip based on Cortex-A15 and Cortex-A7 cores,
originally released in 2016 as one of the last high-end 32-bit
designs.
There is ongoing cleanup for the integrator, tegra, imx, and omap2
platforms, with integrator getting very close to the goal of having
zero code in arch/arm/, and omap2 moving more of the chip specifics
from old board code into device tree files.
The Versatile Express platform is made more modular, with built-in
drivers now becoming loadable modules. This is part of a greater
effort for the Android OS to have a common kernel binary for all
platforms and any platform specific code in loadable modules.
The PXA platform drops support for Compulab's pxa2xx boards that had
rather unusual flash and PCI drivers but no known users remaining. All
device drivers specific to those boards can now get removed as well.
Across platforms, there is ongoing cleanup, with Geert and Rob
revisiting some a lot of Kconfig options"
* tag 'arm-soc-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (94 commits)
ARM: omap2: fix omap5_realtime_timer_init definition
ARM: zynq: Don't select CONFIG_ICST
ARM: OMAP2+: Fix regression for using local timer on non-SMP SoCs
clk: versatile: Fix kconfig dependency on COMMON_CLK_VERSATILE
ARM: davinci: fix build failure without I2C
power: reset: vexpress: fix build issue
power: vexpress: cleanup: use builtin_platform_driver
power: vexpress: add suppress_bind_attrs to true
Revert "ARM: vexpress: Don't select VEXPRESS_CONFIG"
MAINTAINERS: pxa: remove Compulab arm/pxa support
ARM: pxa: remove Compulab pxa2xx boards
bus: arm-integrator-lm: Fix return value check in integrator_ap_lm_probe()
soc: imx: move cpu code to drivers/soc/imx
ARM: imx: move cpu definitions into a header
ARM: imx: use device_initcall for imx_soc_device_init
ARM: imx: pcm037: make pcm970_sja1000_platform_data static
bus: ti-sysc: Timers no longer need legacy quirk handling
ARM: OMAP2+: Drop old timer code for dmtimer and 32k counter
ARM: dts: Configure system timers for omap2
ARM: dts: Configure system timers for ti81xx
...
Pull uaccess/access_ok updates from Al Viro:
"Removals of trivially pointless access_ok() calls.
Note: the fiemap stuff was removed from the series, since they are
duplicates with part of ext4 series carried in Ted's tree"
* 'uaccess.access_ok' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vmci_host: get rid of pointless access_ok()
hfi1: get rid of pointless access_ok()
usb: get rid of pointless access_ok() calls
lpfc_debugfs: get rid of pointless access_ok()
efi_test: get rid of pointless access_ok()
drm_read(): get rid of pointless access_ok()
via-pmu: don't bother with access_ok()
drivers/crypto/ccp/sev-dev.c: get rid of pointless access_ok()
omapfb: get rid of pointless access_ok() calls
amifb: get rid of pointless access_ok() calls
drivers/fpga/dfl-afu-dma-region.c: get rid of pointless access_ok()
drivers/fpga/dfl-fme-pr.c: get rid of pointless access_ok()
cm4000_cs.c cmm_ioctl(): get rid of pointless access_ok()
nvram: drop useless access_ok()
n_hdlc_tty_read(): remove pointless access_ok()
tomoyo_write_control(): get rid of pointless access_ok()
btrfs_ioctl_send(): don't bother with access_ok()
fat_dir_ioctl(): hadn't needed that access_ok() for more than a decade...
dlmfs_file_write(): get rid of pointless access_ok()
- remove a now unnecessary usage of the KERNEL_DS for
sys_oabi_epoll_ctl()
- update my email address in a number of drivers
- decompressor EFI updates from Ard Biesheuvel
- module unwind section handling updates
- sparsemem Kconfig cleanups
- make act_mm macro respect THREAD_SIZE
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
- remove a now unnecessary usage of the KERNEL_DS for
sys_oabi_epoll_ctl()
- update my email address in a number of drivers
- decompressor EFI updates from Ard Biesheuvel
- module unwind section handling updates
- sparsemem Kconfig cleanups
- make act_mm macro respect THREAD_SIZE
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8980/1: Allow either FLATMEM or SPARSEMEM on the multiplatform build
ARM: 8979/1: Remove redundant ARCH_SPARSEMEM_DEFAULT setting
ARM: 8978/1: mm: make act_mm() respect THREAD_SIZE
ARM: decompressor: run decompressor in place if loaded via UEFI
ARM: decompressor: move GOT into .data for EFI enabled builds
ARM: decompressor: defer loading of the contents of the LC0 structure
ARM: decompressor: split off _edata and stack base into separate object
ARM: decompressor: move headroom variable out of LC0
ARM: 8976/1: module: allow arch overrides for .init section names
ARM: 8975/1: module: fix handling of unwind init sections
ARM: 8974/1: use SPARSMEM_STATIC when SPARSEMEM is enabled
ARM: 8971/1: replace the sole use of a symbol with its definition
ARM: 8969/1: decompressor: simplify libfdt builds
Update rmk's email address in various drivers
ARM: compat: remove KERNEL_DS usage in sys_oabi_epoll_ctl()
- Branch Target Identification (BTI)
* Support for ARMv8.5-BTI in both user- and kernel-space. This
allows branch targets to limit the types of branch from which
they can be called and additionally prevents branching to
arbitrary code, although kernel support requires a very recent
toolchain.
* Function annotation via SYM_FUNC_START() so that assembly
functions are wrapped with the relevant "landing pad"
instructions.
* BPF and vDSO updates to use the new instructions.
* Addition of a new HWCAP and exposure of BTI capability to
userspace via ID register emulation, along with ELF loader
support for the BTI feature in .note.gnu.property.
* Non-critical fixes to CFI unwind annotations in the sigreturn
trampoline.
- Shadow Call Stack (SCS)
* Support for Clang's Shadow Call Stack feature, which reserves
platform register x18 to point at a separate stack for each
task that holds only return addresses. This protects function
return control flow from buffer overruns on the main stack.
* Save/restore of x18 across problematic boundaries (user-mode,
hypervisor, EFI, suspend, etc).
* Core support for SCS, should other architectures want to use it
too.
* SCS overflow checking on context-switch as part of the existing
stack limit check if CONFIG_SCHED_STACK_END_CHECK=y.
- CPU feature detection
* Removed numerous "SANITY CHECK" errors when running on a system
with mismatched AArch32 support at EL1. This is primarily a
concern for KVM, which disabled support for 32-bit guests on
such a system.
* Addition of new ID registers and fields as the architecture has
been extended.
- Perf and PMU drivers
* Minor fixes and cleanups to system PMU drivers.
- Hardware errata
* Unify KVM workarounds for VHE and nVHE configurations.
* Sort vendor errata entries in Kconfig.
- Secure Monitor Call Calling Convention (SMCCC)
* Update to the latest specification from Arm (v1.2).
* Allow PSCI code to query the SMCCC version.
- Software Delegated Exception Interface (SDEI)
* Unexport a bunch of unused symbols.
* Minor fixes to handling of firmware data.
- Pointer authentication
* Add support for dumping the kernel PAC mask in vmcoreinfo so
that the stack can be unwound by tools such as kdump.
* Simplification of key initialisation during CPU bringup.
- BPF backend
* Improve immediate generation for logical and add/sub
instructions.
- vDSO
- Minor fixes to the linker flags for consistency with other
architectures and support for LLVM's unwinder.
- Clean up logic to initialise and map the vDSO into userspace.
- ACPI
- Work around for an ambiguity in the IORT specification relating
to the "num_ids" field.
- Support _DMA method for all named components rather than only
PCIe root complexes.
- Minor other IORT-related fixes.
- Miscellaneous
* Initialise debug traps early for KGDB and fix KDB cacheflushing
deadlock.
* Minor tweaks to early boot state (documentation update, set
TEXT_OFFSET to 0x0, increase alignment of PE/COFF sections).
* Refactoring and cleanup
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"A sizeable pile of arm64 updates for 5.8.
Summary below, but the big two features are support for Branch Target
Identification and Clang's Shadow Call stack. The latter is currently
arm64-only, but the high-level parts are all in core code so it could
easily be adopted by other architectures pending toolchain support
Branch Target Identification (BTI):
- Support for ARMv8.5-BTI in both user- and kernel-space. This allows
branch targets to limit the types of branch from which they can be
called and additionally prevents branching to arbitrary code,
although kernel support requires a very recent toolchain.
- Function annotation via SYM_FUNC_START() so that assembly functions
are wrapped with the relevant "landing pad" instructions.
- BPF and vDSO updates to use the new instructions.
- Addition of a new HWCAP and exposure of BTI capability to userspace
via ID register emulation, along with ELF loader support for the
BTI feature in .note.gnu.property.
- Non-critical fixes to CFI unwind annotations in the sigreturn
trampoline.
Shadow Call Stack (SCS):
- Support for Clang's Shadow Call Stack feature, which reserves
platform register x18 to point at a separate stack for each task
that holds only return addresses. This protects function return
control flow from buffer overruns on the main stack.
- Save/restore of x18 across problematic boundaries (user-mode,
hypervisor, EFI, suspend, etc).
- Core support for SCS, should other architectures want to use it
too.
- SCS overflow checking on context-switch as part of the existing
stack limit check if CONFIG_SCHED_STACK_END_CHECK=y.
CPU feature detection:
- Removed numerous "SANITY CHECK" errors when running on a system
with mismatched AArch32 support at EL1. This is primarily a concern
for KVM, which disabled support for 32-bit guests on such a system.
- Addition of new ID registers and fields as the architecture has
been extended.
Perf and PMU drivers:
- Minor fixes and cleanups to system PMU drivers.
Hardware errata:
- Unify KVM workarounds for VHE and nVHE configurations.
- Sort vendor errata entries in Kconfig.
Secure Monitor Call Calling Convention (SMCCC):
- Update to the latest specification from Arm (v1.2).
- Allow PSCI code to query the SMCCC version.
Software Delegated Exception Interface (SDEI):
- Unexport a bunch of unused symbols.
- Minor fixes to handling of firmware data.
Pointer authentication:
- Add support for dumping the kernel PAC mask in vmcoreinfo so that
the stack can be unwound by tools such as kdump.
- Simplification of key initialisation during CPU bringup.
BPF backend:
- Improve immediate generation for logical and add/sub instructions.
vDSO:
- Minor fixes to the linker flags for consistency with other
architectures and support for LLVM's unwinder.
- Clean up logic to initialise and map the vDSO into userspace.
ACPI:
- Work around for an ambiguity in the IORT specification relating to
the "num_ids" field.
- Support _DMA method for all named components rather than only PCIe
root complexes.
- Minor other IORT-related fixes.
Miscellaneous:
- Initialise debug traps early for KGDB and fix KDB cacheflushing
deadlock.
- Minor tweaks to early boot state (documentation update, set
TEXT_OFFSET to 0x0, increase alignment of PE/COFF sections).
- Refactoring and cleanup"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (148 commits)
KVM: arm64: Move __load_guest_stage2 to kvm_mmu.h
KVM: arm64: Check advertised Stage-2 page size capability
arm64/cpufeature: Add get_arm64_ftr_reg_nowarn()
ACPI/IORT: Remove the unused __get_pci_rid()
arm64/cpuinfo: Add ID_MMFR4_EL1 into the cpuinfo_arm64 context
arm64/cpufeature: Add remaining feature bits in ID_AA64PFR1 register
arm64/cpufeature: Add remaining feature bits in ID_AA64PFR0 register
arm64/cpufeature: Add remaining feature bits in ID_AA64ISAR0 register
arm64/cpufeature: Add remaining feature bits in ID_MMFR4 register
arm64/cpufeature: Add remaining feature bits in ID_PFR0 register
arm64/cpufeature: Introduce ID_MMFR5 CPU register
arm64/cpufeature: Introduce ID_DFR1 CPU register
arm64/cpufeature: Introduce ID_PFR2 CPU register
arm64/cpufeature: Make doublelock a signed feature in ID_AA64DFR0
arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register
arm64/cpufeature: Add explicit ftr_id_isar0[] for ID_ISAR0 register
arm64: mm: Add asid_gen_match() helper
firmware: smccc: Fix missing prototype warning for arm_smccc_version_init
arm64: vdso: Fix CFI directives in sigreturn trampoline
arm64: vdso: Don't prefix sigreturn trampoline with a BTI C instruction
...
- preliminary changes for RISC-V
- Add support for setting the resolution on the EFI framebuffer
- Simplify kernel image loading for arm64
- Move .bss into .data via the linker script instead of relying on symbol
annotations.
- Get rid of __pure getters to access global variables
- Clean up the config table matching arrays
- Rename pr_efi/pr_efi_err to efi_info/efi_err, and use them consistently
- Simplify and unify initrd loading
- Parse the builtin command line on x86 (if provided)
- Implement printk() support, including support for wide character strings
- Simplify GDT handling in early mixed mode thunking code
- Some other minor fixes and cleanups
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'efi-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
"The EFI changes for this cycle are:
- preliminary changes for RISC-V
- Add support for setting the resolution on the EFI framebuffer
- Simplify kernel image loading for arm64
- Move .bss into .data via the linker script instead of relying on
symbol annotations.
- Get rid of __pure getters to access global variables
- Clean up the config table matching arrays
- Rename pr_efi/pr_efi_err to efi_info/efi_err, and use them
consistently
- Simplify and unify initrd loading
- Parse the builtin command line on x86 (if provided)
- Implement printk() support, including support for wide character
strings
- Simplify GDT handling in early mixed mode thunking code
- Some other minor fixes and cleanups"
* tag 'efi-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits)
efi/x86: Don't blow away existing initrd
efi/x86: Drop the special GDT for the EFI thunk
efi/libstub: Add missing prototype for PE/COFF entry point
efi/efivars: Add missing kobject_put() in sysfs entry creation error path
efi/libstub: Use pool allocation for the command line
efi/libstub: Don't parse overlong command lines
efi/libstub: Use snprintf with %ls to convert the command line
efi/libstub: Get the exact UTF-8 length
efi/libstub: Use %ls for filename
efi/libstub: Add UTF-8 decoding to efi_puts
efi/printf: Add support for wchar_t (UTF-16)
efi/gop: Add an option to list out the available GOP modes
efi/libstub: Add definitions for console input and events
efi/libstub: Implement printk-style logging
efi/printf: Turn vsprintf into vsnprintf
efi/printf: Abort on invalid format
efi/printf: Refactor code to consolidate padding and output
efi/printf: Handle null string input
efi/printf: Factor out integer argument retrieval
efi/printf: Factor out width/precision parsing
...
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Merge tag 'printk-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Benjamin Herrenschmidt solved a problem with non-matched console
aliases by first checking consoles defined on the command line. It is
a more conservative approach than the previous attempts.
- Benjamin also made sure that the console accessible via /dev/console
always has CON_CONSDEV flag.
- Andy Shevchenko added the %ptT modifier for printing struct time64_t.
It extends the existing %ptR handling for struct rtc_time.
- Bruno Meneguele fixed /dev/kmsg error value returned by unsupported
SEEK_CUR.
- Tetsuo Handa removed unused pr_cont_once().
... and a few small fixes.
* tag 'printk-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
printk: Remove pr_cont_once()
printk: handle blank console arguments passed in.
kernel/printk: add kmsg SEEK_CUR handling
printk: Fix a typo in comment "interator"->"iterator"
usb: pulse8-cec: Switch to use %ptT
ARM: bcm2835: Switch to use %ptT
lib/vsprintf: Print time64_t in human readable format
lib/vsprintf: update comment about simple_strto<foo>() functions
printk: Correctly set CON_CONSDEV even when preferred console was not registered
printk: Fix preferred console selection with multiple matches
printk: Move console matching logic into a separate function
printk: Convert a use of sprintf to snprintf in console_unlock
Support for Clang's Shadow Call Stack in the kernel
(Sami Tolvanen and Will Deacon)
* for-next/scs:
arm64: entry-ftrace.S: Update comment to indicate that x18 is live
scs: Move DEFINE_SCS macro into core code
scs: Remove references to asm/scs.h from core code
scs: Move scs_overflow_check() out of architecture code
arm64: scs: Use 'scs_sp' register alias for x18
scs: Move accounting into alloc/free functions
arm64: scs: Store absolute SCS stack pointer value in thread_info
efi/libstub: Disable Shadow Call Stack
arm64: scs: Add shadow stacks for SDEI
arm64: Implement Shadow Call Stack
arm64: Disable SCS for hypervisor code
arm64: vdso: Disable Shadow Call Stack
arm64: efi: Restore register x18 if it was corrupted
arm64: Preserve register x18 when CPU is suspended
arm64: Reserve register x18 from general allocation with SCS
scs: Disable when function graph tracing is enabled
scs: Add support for stack usage debugging
scs: Add page accounting for shadow call stack allocations
scs: Add support for Clang's Shadow Call Stack (SCS)
ACPI and IORT updates
(Lorenzo Pieralisi)
* for-next/acpi:
ACPI/IORT: Remove the unused __get_pci_rid()
ACPI/IORT: Fix PMCG node single ID mapping handling
ACPI: IORT: Add comments for not calling acpi_put_table()
ACPI: GTDT: Put GTDT table after parsing
ACPI: IORT: Add extra message "applying workaround" for off-by-1 issue
ACPI/IORT: work around num_ids ambiguity
Revert "ACPI/IORT: Fix 'Number of IDs' handling in iort_id_map()"
ACPI/IORT: take _DMA methods into account for named components
BPF JIT optimisations for immediate value generation
(Luke Nelson)
* for-next/bpf:
bpf, arm64: Optimize ADD,SUB,JMP BPF_K using arm64 add/sub immediates
bpf, arm64: Optimize AND,OR,XOR,JSET BPF_K using arm64 logical immediates
arm64: insn: Fix two bugs in encoding 32-bit logical immediates
Addition of new CPU ID register fields and removal of some benign sanity checks
(Anshuman Khandual and others)
* for-next/cpufeature: (27 commits)
KVM: arm64: Check advertised Stage-2 page size capability
arm64/cpufeature: Add get_arm64_ftr_reg_nowarn()
arm64/cpuinfo: Add ID_MMFR4_EL1 into the cpuinfo_arm64 context
arm64/cpufeature: Add remaining feature bits in ID_AA64PFR1 register
arm64/cpufeature: Add remaining feature bits in ID_AA64PFR0 register
arm64/cpufeature: Add remaining feature bits in ID_AA64ISAR0 register
arm64/cpufeature: Add remaining feature bits in ID_MMFR4 register
arm64/cpufeature: Add remaining feature bits in ID_PFR0 register
arm64/cpufeature: Introduce ID_MMFR5 CPU register
arm64/cpufeature: Introduce ID_DFR1 CPU register
arm64/cpufeature: Introduce ID_PFR2 CPU register
arm64/cpufeature: Make doublelock a signed feature in ID_AA64DFR0
arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register
arm64/cpufeature: Add explicit ftr_id_isar0[] for ID_ISAR0 register
arm64/cpufeature: Drop open encodings while extracting parange
arm64/cpufeature: Validate hypervisor capabilities during CPU hotplug
arm64: cpufeature: Group indexed system register definitions by name
arm64: cpufeature: Extend comment to describe absence of field info
arm64: drop duplicate definitions of ID_AA64MMFR0_TGRAN constants
arm64: cpufeature: Add an overview comment for the cpufeature framework
...
Minor documentation tweaks for silicon errata and booting requirements
(Rob Herring and Will Deacon)
* for-next/docs:
arm64: silicon-errata.rst: Sort the Cortex-A55 entries
arm64: docs: Mandate that the I-cache doesn't hold stale kernel text
Minor Kconfig cleanups
(Geert Uytterhoeven)
* for-next/kconfig:
arm64: cpufeature: Add "or" to mitigations for multiple errata
arm64: Sort vendor-specific errata
Miscellaneous updates
(Ard Biesheuvel and others)
* for-next/misc:
arm64: mm: Add asid_gen_match() helper
arm64: stacktrace: Factor out some common code into on_stack()
arm64: Call debug_traps_init() from trap_init() to help early kgdb
arm64: cacheflush: Fix KGDB trap detection
arm64/cpuinfo: Move device_initcall() near cpuinfo_regs_init()
arm64: kexec_file: print appropriate variable
arm: mm: use __pfn_to_section() to get mem_section
arm64: Reorder the macro arguments in the copy routines
efi/libstub/arm64: align PE/COFF sections to segment alignment
KVM: arm64: Drop PTE_S2_MEMATTR_MASK
arm64/kernel: Fix range on invalidating dcache for boot page tables
arm64: set TEXT_OFFSET to 0x0 in preparation for removing it entirely
arm64: lib: Consistently enable crc32 extension
arm64/mm: Use phys_to_page() to access pgtable memory
arm64: smp: Make cpus_stuck_in_kernel static
arm64: entry: remove unneeded semicolon in el1_sync_handler()
arm64/kernel: vmlinux.lds: drop redundant discard/keep macros
arm64: drop GZFLAGS definition and export
arm64: kexec_file: Avoid temp buffer for RNG seed
arm64: rename stext to primary_entry
Perf PMU driver updates
(Tang Bin and others)
* for-next/perf:
pmu/smmuv3: Clear IRQ affinity hint on device removal
drivers/perf: hisi: Permit modular builds of HiSilicon uncore drivers
drivers/perf: hisi: Fix typo in events attribute array
drivers/perf: arm_spe_pmu: Avoid duplicate printouts
drivers/perf: arm_dsu_pmu: Avoid duplicate printouts
Pointer authentication updates and support for vmcoreinfo
(Amit Daniel Kachhap and Mark Rutland)
* for-next/ptr-auth:
Documentation/vmcoreinfo: Add documentation for 'KERNELPACMASK'
arm64/crash_core: Export KERNELPACMASK in vmcoreinfo
arm64: simplify ptrauth initialization
arm64: remove ptrauth_keys_install_kernel sync arg
SDEI cleanup and non-critical fixes
(James Morse and others)
* for-next/sdei:
firmware: arm_sdei: Document the motivation behind these set_fs() calls
firmware: arm_sdei: remove unused interfaces
firmware: arm_sdei: Put the SDEI table after using it
firmware: arm_sdei: Drop check for /firmware/ node and always register driver
SMCCC updates and refactoring
(Sudeep Holla)
* for-next/smccc:
firmware: smccc: Fix missing prototype warning for arm_smccc_version_init
firmware: smccc: Add function to fetch SMCCC version
firmware: smccc: Refactor SMCCC specific bits into separate file
firmware: smccc: Drop smccc_version enum and use ARM_SMCCC_VERSION_1_x instead
firmware: smccc: Add the definition for SMCCCv1.2 version/error codes
firmware: smccc: Update link to latest SMCCC specification
firmware: smccc: Add HAVE_ARM_SMCCC_DISCOVERY to identify SMCCC v1.1 and above
vDSO cleanup and non-critical fixes
(Mark Rutland and Vincenzo Frascino)
* for-next/vdso:
arm64: vdso: Add --eh-frame-hdr to ldflags
arm64: vdso: use consistent 'map' nomenclature
arm64: vdso: use consistent 'abi' nomenclature
arm64: vdso: simplify arch_vdso_type ifdeffery
arm64: vdso: remove aarch32_vdso_pages[]
arm64: vdso: Add '-Bsymbolic' to ldflags
Commit
987053a300 ("efi/x86: Move command-line initrd loading to efi_main")
moved the command-line initrd loading into efi_main(), with a check
to ensure that it was attempted only if the EFI stub was booted via
efi_pe_entry rather than the EFI handover entry.
However, in the case where it was booted via handover entry, and thus an
initrd may have already been loaded by the bootloader, it then wrote 0
for the initrd address and size, removing any existing initrd.
Fix this by checking if size is positive before setting the fields in
the bootparams structure.
Fixes: 987053a300 ("efi/x86: Move command-line initrd loading to efi_main")
Reported-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lkml.kernel.org/r/20200527232602.21596-1-nivedita@alum.mit.edu
- Optimize imx-scu driver to use one TX and one RX instead of four for
talking to SCU.
- Fix one possible message header corruption where the response is
longer than the request.
- Move System Control defines into dt-bindings header, so that DT can
use them as well.
- A couple of small fixups.
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Merge tag 'imx-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers
i.MX drivers update for 5.8:
- Optimize imx-scu driver to use one TX and one RX instead of four for
talking to SCU.
- Fix one possible message header corruption where the response is
longer than the request.
- Move System Control defines into dt-bindings header, so that DT can
use them as well.
- A couple of small fixups.
* tag 'imx-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
firmware: imx: scu: Fix possible memory leak in imx_scu_probe()
dt-bindings: firmware: imx: Add more system controls and PM clock types
dt-bindings: firmware: imx: Move system control into dt-binding headfile
firmware: imx: scu: Fix corruption of header
firmware: imx-scu: Support one TX and one RX
soc: imx8m: No need to put node when of_find_compatible_node() failed
Link: https://lore.kernel.org/r/20200523032516.11016-1-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This contains a large set of cleanups, bug fixes, general improvements
and documentation fixes for the RPMH driver. It adds a debugfs mechanism
for inspecting Command DB. Socinfo got the "soc_id" attribute defines
and definitions for a various variants of MSM8939.
RPMH, RPMPD and RPMHPD where made possible to build as modules, but RPMH
had to be reverted due to a compilation issue when tracing is enabled.
RPMHPD gained power-domains for the SM8250 voltage corners.
The SCM driver gained fixes for two build warnings and the SMP2P had an
unnecessary error print removed.
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Merge tag 'qcom-drivers-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers
Qualcomm driver updates for v5.8
This contains a large set of cleanups, bug fixes, general improvements
and documentation fixes for the RPMH driver. It adds a debugfs mechanism
for inspecting Command DB. Socinfo got the "soc_id" attribute defines
and definitions for a various variants of MSM8939.
RPMH, RPMPD and RPMHPD where made possible to build as modules, but RPMH
had to be reverted due to a compilation issue when tracing is enabled.
RPMHPD gained power-domains for the SM8250 voltage corners.
The SCM driver gained fixes for two build warnings and the SMP2P had an
unnecessary error print removed.
* tag 'qcom-drivers-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (42 commits)
Revert "soc: qcom: rpmh: Allow RPMH driver to be loaded as a module"
soc: qcom: rpmh-rsc: Remove the pm_lock
soc: qcom: rpmh-rsc: Simplify locking by eliminating the per-TCS lock
kernel/cpu_pm: Fix uninitted local in cpu_pm
soc: qcom: rpmh-rsc: We aren't notified of our own failure w/ NOTIFY_BAD
soc: qcom: rpmh-rsc: Correctly ignore CPU_CLUSTER_PM notifications
firmware: qcom_scm-legacy: Replace zero-length array with flexible-array
soc: qcom: rpmh-rsc: Timeout after 1 second in write_tcs_reg_sync()
soc: qcom: rpmh-rsc: Factor "tcs_reg_addr" and "tcs_cmd_addr" calculation
soc: qcom: socinfo: add msm8936/39 and apq8036/39 soc ids
soc: qcom: aoss: Add SM8250 compatible
soc: qcom: pdr: Remove impossible error condition
soc: qcom: rpmh: Dirt can only make you dirtier, not cleaner
soc: qcom: rpmhpd: Add SM8250 power domains
firmware: qcom_scm: fix bogous abuse of dma-direct internals
dt-bindings: soc: qcom: apr: Use generic node names for APR services
firmware: qcom_scm: Remove unneeded conversion to bool
soc: qcom: cmd-db: Properly endian swap the slv_id for debugfs
soc: qcom: cmd-db: Use 5 digits for printing address
soc: qcom: cmd-db: Cast sizeof() to int to silence field width warning
...
Link: https://lore.kernel.org/r/20200519052533.1250024-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This contains a change that makes the BPMP driver a regular driver,
which fixes some weird suspend/resume ordering issues. Another fix is
also included to implement another way of enabling the L2 cache after
LP2 suspend.
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Merge tag 'tegra-for-5.8-firmware-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers
firmware: tegra: Changes for v5.8-rc1
This contains a change that makes the BPMP driver a regular driver,
which fixes some weird suspend/resume ordering issues. Another fix is
also included to implement another way of enabling the L2 cache after
LP2 suspend.
* tag 'tegra-for-5.8-firmware-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
firmware: tegra: Defer BPMP probe if shared memory not available
firmware: tf: Different way of L2 cache enabling after LP2 suspend
firmware: tegra: Make BPMP a regular driver
Link: https://lore.kernel.org/r/20200515145311.1580134-6-thierry.reding@gmail.com
Link: https://lore.kernel.org/r/20200522142846.2376224-1-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Addition of ARM SMC/HVC as SCMI transport type with required
abstraction already in place
2. Initial infrastructure support to add SCMI notifications from
platform to agents
3. Miscellaneous fix adding header include guards
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Merge tag 'scmi-updates-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers
ARM SCMI/SCPI updates for v5.8
1. Addition of ARM SMC/HVC as SCMI transport type with required
abstraction already in place
2. Initial infrastructure support to add SCMI notifications from
platform to agents
3. Miscellaneous fix adding header include guards
* tag 'scmi-updates-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: fix psci dependency
firmware: arm_scmi: Fix return error code in smc_send_message
firmware: arm_scmi: Fix handling of unexpected delayed responses
firmware: arm_scmi: Clear channel for delayed responses
firmware: arm_scmi: Clear channel on reception of unexpected responses
firmware: arm_scmi: Rename .clear_notification() transport_ops
firmware: arm_scmi: Add support for notifications message processing
firmware: arm_scmi: Add notifications support in transport layer
firmware: arm_scmi: Update protocol commands and notification list
firmware: arm_scmi: Add receive buffer support for notifications
firmware: arm_scpi: Add include guard to linux/scpi_protocol.h
firmware: arm_scmi: Add include guard to linux/scmi_protocol.h
firmware: arm_scmi: Drop checking for shmem property in parent node
firmware: arm_scmi: Check shmem property for channel availablity
firmware: arm_scmi: Drop empty stub for smc_mark_txdone
firmware: arm_scmi: Make mutex channel specific
firmware: arm_scmi: Add smc/hvc transport
dt-bindings: arm: Add smc/hvc transport for SCMI
Link: https://lore.kernel.org/r/20200512110357.GA26454@bogus
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Rename pr_efi/pr_efi_err to efi_info/efi_err, and use them consistently
- Simplify and unify initrd loading
- Parse the builtin command line on x86 (if provided)
- Implement printk() support, including support for wide character strings
- Some fixes for issues introduced by the first batch of v5.8 changes
- Fix a missing prototypes warning
- Simplify GDT handling in early mixed mode thunking code
- Some other minor fixes and cleanups
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Merge tag 'efi-changes-for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/core
More EFI changes for v5.8:
- Rename pr_efi/pr_efi_err to efi_info/efi_err, and use them consistently
- Simplify and unify initrd loading
- Parse the builtin command line on x86 (if provided)
- Implement printk() support, including support for wide character strings
- Some fixes for issues introduced by the first batch of v5.8 changes
- Fix a missing prototypes warning
- Simplify GDT handling in early mixed mode thunking code
- Some other minor fixes and cleanups
Conflicts:
drivers/firmware/efi/libstub/efistub.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Fix a missing prototype warning by adding a forward declaration
for the PE/COFF entrypoint, and while at it, align the function
name between the x86 and ARM versions of the stub.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
- fix EFI framebuffer earlycon for wide fonts
- avoid filling screen_info with garbage if the EFI framebuffer is not
available
- fix a potential host tool build error due to a symbol clash on x86
- work around a EFI firmware bug regarding the binary format of the TPM
final events table
- fix a missing memory free by reworking the E820 table sizing routine to
not do the allocation in the first place
- add CPER parsing for firmware errors
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Merge tag 'efi-fixes-for-v5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/urgent
Pull EFI fixes from Ard Biesheuvel:
"- fix EFI framebuffer earlycon for wide fonts
- avoid filling screen_info with garbage if the EFI framebuffer is not
available
- fix a potential host tool build error due to a symbol clash on x86
- work around a EFI firmware bug regarding the binary format of the TPM
final events table
- fix a missing memory free by reworking the E820 table sizing routine to
not do the allocation in the first place
- add CPER parsing for firmware errors"
The documentation provided by kobject_init_and_add() clearly spells out
the need to call kobject_put() on the kobject if an error is returned.
Add this missing call to the error path.
Cc: <stable@vger.kernel.org>
Reported-by: 亿一 <teroincn@gmail.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Now that we removed the memory limit for the allocation of the
command line, there is no longer a need to use the page based
allocator so switch to a pool allocation instead.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Check if the command line passed in is larger than COMMAND_LINE_SIZE,
and truncate it to the last full argument if so.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200521002921.69650-1-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Since commit 93d2e4322a ("of: platform: Batch fwnode parsing when
adding all top level devices") was added, the probing of the Tegra
SRAM device has occurred later in the boot sequence, after the BPMP
has been probed. The BPMP uses sections of the SRAM for shared memory
and if the BPMP is probed before the SRAM then it fails to probe and
never tries again. This is causing a boot failure on Tegra186 and
Tegra194. Fix this by allowing the probe of the BPMP to be deferred if
the SRAM is not available yet.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Commit f2ae97062a ("firmware: smccc: Refactor SMCCC specific bits into
separate file") introduced the following build warning:
drivers/firmware/smccc/smccc.c:14:13: warning: no previous prototype for
function 'arm_smccc_version_init' [-Wmissing-prototypes]
void __init arm_smccc_version_init(u32 version, enum arm_smccc_conduit conduit)
^~~~~~~~~~~~~~~~~~~~~~
Fix the same by adding the missing prototype in arm-smccc.h
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20200521110836.57252-1-sudeep.holla@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
For backward compatibility reasons, PSCI maintains SMCCC version as
SMCCC didn't provide ARM_SMCCC_VERSION_FUNC_ID until v1.1.
PSCI initialises both the SMCCC version and conduit. Similar to the
conduit, let us provide accessors to fetch the SMCCC version also so
that other SMCCC v1.1+ features can use it.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Etienne Carriere <etienne.carriere@st.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Etienne Carriere <etienne.carriere@st.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20200518091222.27467-7-sudeep.holla@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
In order to add newer SMCCC v1.1+ functionality and to avoid cluttering
PSCI firmware driver with SMCCC bits, let us move the SMCCC specific
details under drivers/firmware/smccc/smccc.c
We can also drop conduit and smccc_version from psci_operations structure
as SMCCC was the sole user and now it maintains those.
No functionality change in this patch though.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Etienne Carriere <etienne.carriere@st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@st.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20200518091222.27467-6-sudeep.holla@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Instead of maintaining 2 sets of enums/macros for tracking SMCCC version,
let us drop smccc_version enum and use ARM_SMCCC_VERSION_1_x directly
instead.
This is in preparation to drop smccc_version here and move it separately
under drivers/firmware/smccc.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Etienne Carriere <etienne.carriere@st.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Etienne Carriere <etienne.carriere@st.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20200518091222.27467-5-sudeep.holla@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
SMCCC v1.0 lacked discoverability of version and features. To accelerate
adoption of few mitigations and protect systems more rapidly from various
vulnerability, PSCI v1.0 was updated to add SMCCC discovery mechanism
though the PSCI firmware implementation of PSCI_FEATURES(SMCCC_VERSION)
which returns success on firmware compliant to SMCCC v1.1 and above.
This inturn makes SMCCC v1.1 and above dependent on ARM_PSCI_FW for
backward compatibility. Let us introduce a new hidden config for the
same to build more features on top of SMCCC v1.1 and above.
While at it, also sort alphabetically the psci entry.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Etienne Carriere <etienne.carriere@st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@st.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20200518091222.27467-2-sudeep.holla@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Now we can use snprintf to do the UTF-16 to UTF-8 translation for the
command line.
Drop the special "zero" trick to handle an empty command line. This was
unnecessary even before this since with options_chars == 0,
efi_utf16_to_utf8 would not have accessed options at all. snprintf won't
access it either with a precision of 0.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-25-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
efi_convert_cmdline currently overestimates the length of the equivalent
UTF-8 encoding.
snprintf can now be used to do the conversion to UTF-8, however, it does
not have a way to specify the size of the UTF-16 string, only the size
of the resulting UTF-8 string. So in order to use it, we need to
precalculate the exact UTF-8 size.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-24-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
efi_printk can now handle the UTF-16 filename, so print it using efi_err
instead of a separate efi_char16_puts call.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-23-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
In order to be able to use the UTF-16 support added to vsprintf in the
previous commit, enhance efi_puts to decode UTF-8 into UTF-16. Invalid
UTF-8 encodings are passed through unchanged.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-22-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Add the required typedefs etc for using con_in's simple text input
protocol, and for using the boottime event services.
Also add the prototype for the "stall" boot service.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-19-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Use the efi_printk function in efi_info/efi_err, and add efi_debug. This
allows formatted output at different log levels.
Add the notion of a loglevel instead of just quiet/not-quiet, and
parse the efi=debug kernel parameter in addition to quiet.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200520170223.GA3333632@rani.riverdale.lan/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Use %ptT instead of open coded variant to print content of
time64_t type in human readable format.
Link: https://lore.kernel.org/r/20200415170046.33374-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Rewieved-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
The SDEI handler save/restores the addr_limit using set_fs(). It isn't
very clear why. The reason is to mirror the arch code's entry assembly.
The arch code does this because perf may access user-space, and
inheriting the addr_limit may be a problem.
Add a comment explaining why this is here.
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Morse <james.morse@arm.com>
Link: https://bugs.chromium.org/p/project-zero/issues/detail?id=822
Link: https://lore.kernel.org/r/20200519182108.13693-4-james.morse@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
'chan_name' is malloced in imx_scu_probe() and should be freed
before leaving from the error handling cases, otherwise it will
cause memory leak.
Fixes: edbee095fa ("firmware: imx: add SCU firmware driver support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The decompressor can load from anywhere in memory, and the only reason
the EFI stub code relocates it is to ensure it appears within the first
128 MiB of memory, so that the uncompressed kernel ends up at the right
offset in memory.
We can short circuit this, and simply jump into the decompressor startup
code at the point where it knows where the base of memory lives. This
also means there is no need to disable the MMU and caches, create new
page tables and re-enable them.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Nicolas Pitre <nico@fluxnic.net>
If we get an invalid conversion specifier, bail out instead of trying to
fix it up. The format string likely has a typo or assumed we support
something that we don't, in either case the remaining arguments won't
match up with the remaining format string.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-16-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Consolidate the actual output of the formatted text into one place.
Fix a couple of edge cases:
1. If 0 is printed with a precision of 0, the printf specification says
that nothing should be output, with one exception (2b).
2. The specification for octal alternate format (%#o) adds the leading
zero not as a prefix as the 0x for hexadecimal is, but by increasing
the precision if necessary to add the zero. This means that
a. %#.2o turns 8 into "010", but 1 into "01" rather than "001".
b. %#.o prints 0 as "0" rather than "", unlike the situation for
decimal, hexadecimal and regular octal format, which all output an
empty string.
Reduce the space allocated for printing a number to the maximum actually
required (22 bytes for a 64-bit number in octal), instead of the 66
bytes previously allocated.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-15-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
A negative precision should be ignored completely, and the presence of a
valid precision should turn off the 0 flag.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-10-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Move flags parsing code out into a helper function.
The '%%' case can be handled up front: it is not allowed to have flags,
width etc.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-9-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Support 'll' qualifier for long long by copying the decimal printing
code from lib/vsprintf.c. For simplicity, the 32-bit code is used on
64-bit architectures as well.
Support 'hh' qualifier for signed/unsigned char type integers.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-8-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reclaim the bloat from the addition of printf by optimizing the stub for
size. With gcc 9, the text size of the stub is:
ARCH before +printf -Os
arm 35197 37889 34638
arm64 34883 38159 34479
i386 18571 21657 17025
x86_64 25677 29328 22144
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-6-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Copy vsprintf from arch/x86/boot/printf.c to get a simple printf
implementation.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-5-nivedita@alum.mit.edu
[ardb: add some missing braces in if...else clauses]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Use a buffer to convert the string to UTF-16. This will reduce the
number of firmware calls required to print the string from one per
character to one per string in most cases.
Cast the input char to unsigned char before converting to efi_char16_t
to avoid sign-extension in case there are any non-ASCII characters in
the input.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-4-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
