Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of version 2 of the gnu general public license as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 64 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.894819585@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 263 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 and
only version 2 as published by the free software foundation this
program is distributed in the hope that it will be useful but
without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 294 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Modify the PCI bus type's PM code to avoid putting devices left
by their drivers in D0 on purpose during suspend to idle into
low-power states as doing that may confuse the system resume
callbacks of the drivers in question (Rafael Wysocki).
- Avoid checking ACPI wakeup configuration during system-wide
suspend for suspended devices that do not use ACPI-based wakeup
to allow them to stay in suspend more often (Rafael Wysocki).
- The last phase of hibernation is analogous to system-wide suspend
also because on platforms with ACPI it passes control to the
platform firmware to complete the transision, so make it indicate
that by calling pm_set_suspend_via_firmware() to allow the drivers
that care about this to do the right thing (Rafael Wysocki).
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Merge tag 'pm-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix three issues in the system-wide suspend and hibernation area
related to PCI device PM handling by suspend-to-idle, device wakeup
optimizations and arbitrary differences between suspend and
hiberantion.
Specifics:
- Modify the PCI bus type's PM code to avoid putting devices left by
their drivers in D0 on purpose during suspend to idle into
low-power states as doing that may confuse the system resume
callbacks of the drivers in question (Rafael Wysocki).
- Avoid checking ACPI wakeup configuration during system-wide suspend
for suspended devices that do not use ACPI-based wakeup to allow
them to stay in suspend more often (Rafael Wysocki).
- The last phase of hibernation is analogous to system-wide suspend
also because on platforms with ACPI it passes control to the
platform firmware to complete the transision, so make it indicate
that by calling pm_set_suspend_via_firmware() to allow the drivers
that care about this to do the right thing (Rafael Wysocki)"
* tag 'pm-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI: PM: Avoid possible suspend-to-idle issue
ACPI: PM: Call pm_set_suspend_via_firmware() during hibernation
ACPI/PCI: PM: Add missing wakeup.flags.valid checks
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 655 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 3 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version [author] [kishon] [vijay] [abraham]
[i] [kishon]@[ti] [com] this program is distributed in the hope that
it will be useful but without any warranty without even the implied
warranty of merchantability or fitness for a particular purpose see
the gnu general public license for more details
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version [author] [graeme] [gregory]
[gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
[kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
[hk] [hemahk]@[ti] [com] this program is distributed in the hope
that it will be useful but without any warranty without even the
implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 1105 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On systems with ACPI platform firmware the last stage of hibernation
is analogous to system suspend to S3 (suspend-to-RAM), so it should
be handled analogously. In particular, pm_suspend_via_firmware()
should return 'true' in that stage to let the callers of it know that
control will be passed to the platform firmware going forward, so
pm_set_suspend_via_firmware() needs to be called then in analogy with
acpi_suspend_begin().
However, the platform hibernation ->begin() callback is invoked
during the "freeze" transition (before creating a snapshot image of
system memory) as well as during the "hibernate" transition which is
the last stage of it and pm_set_suspend_via_firmware() should be
invoked by that callback in the latter stage only.
In order to implement that redefine the hibernation ->begin()
callback to take a pm_message_t argument to indicate which stage
of hibernation is taking place and rework acpi_hibernation_begin()
and acpi_hibernation_begin_old() to take it into account as needed.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Both acpi_pci_need_resume() and acpi_dev_needs_resume() check if the
current ACPI wakeup configuration of the device matches what is
expected as far as system wakeup from sleep states is concerned, as
reflected by the device_may_wakeup() return value for the device.
However, they only should do that if wakeup.flags.valid is set for
the device's ACPI companion, because otherwise the wakeup.prepare_count
value for it is meaningless.
Add the missing wakeup.flags.valid checks to these functions.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
- Fix incorrect LDADD instruction encoding in our disassembly macros
- Disable the broken ARM64_PSEUDO_NMI support for now
- Add workaround for Cortex-A76 CPU erratum #1463225
- Handle Cortex-A76/Neoverse-N1 erratum #1418040 w/ existing workaround
- Fix IORT build failure if IOMMU_SUPPORT=n
- Fix place-relative module relocation range checking and its
interaction with KASLR
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull more arm64 fixes from Will Deacon:
- Fix incorrect LDADD instruction encoding in our disassembly macros
- Disable the broken ARM64_PSEUDO_NMI support for now
- Add workaround for Cortex-A76 CPU erratum #1463225
- Handle Cortex-A76/Neoverse-N1 erratum #1418040 w/ existing workaround
- Fix IORT build failure if IOMMU_SUPPORT=n
- Fix place-relative module relocation range checking and its
interaction with KASLR
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: insn: Add BUILD_BUG_ON() for invalid masks
arm64: insn: Fix ldadd instruction encoding
arm64: Kconfig: Make ARM64_PSEUDO_NMI depend on BROKEN for now
arm64: Handle erratum 1418040 as a superset of erratum 1188873
arm64/module: deal with ambiguity in PRELxx relocation ranges
ACPI/IORT: Fix build error when IOMMU_SUPPORT is disabled
arm64/kernel: kaslr: reduce module randomization range to 2 GB
arm64: errata: Add workaround for Cortex-A76 erratum #1463225
arm64: Remove useless message during oops
If IOMMU_SUPPORT is not enabled (and therefore IOMMU_API is not
selected), struct iommu_fwspec is an empty struct and
IOMMU_FWSPEC_PCI_RC_ATS is not defined, resulting in the following
compilation errors:
drivers/acpi/arm64/iort.c: In function iort_iommu_configure:
drivers/acpi/arm64/iort.c:1079:21: error: struct iommu_fwspec has no member named flag:
dev->iommu_fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS;
^~
drivers/acpi/arm64/iort.c:1079:32: error: IOMMU_FWSPEC_PCI_RC_ATS
undeclared (first use in this function)
dev->iommu_fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS;
^~~~~~~~~~~~~~~~~~~~~~~
drivers/acpi/arm64/iort.c:1079:32: note: each undeclared identifier is reported only once for each function it appears in
Move iort_iommu_configure() (and the helpers functions it relies on)
into CONFIG_IOMMU_API preprocessor guarded code so that when
CONFIG_IOMMU_SUPPORT is not enabled we prevent compiling code that is
basically equivalent to no-OP, fixing the build errors.
Cc: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/linux-arm-kernel/20190515034253.79348-1-wangkefeng.wang@huawei.com/
Fixes: 5702ee2418 ("ACPI/IORT: Check ATS capability in root complex nodes")
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose good title or non infringement see the gnu general public
license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 7 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154041.727898173@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX license identifiers to all files which:
- Have no license information of any form
- Have MODULE_LICENCE("GPL*") inside which was used in the initial
scan/conversion to ignore the file
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX license identifiers to all files which:
- Have no license information of any form
- Have EXPORT_.*_SYMBOL_GPL inside which was used in the
initial scan/conversion to ignore the file
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include when we had clk_readl() and clk_writel(), but those are gone now
so this patch pushes the dependency out to the users of clk-provider.h.
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull more clk framework updates from Stephen Boyd:
"One more patch to remove io.h from clk-provider.h.
We used to need this include when we had clk_readl() and clk_writel(),
but those are gone now so this patch pushes the dependency out to the
users of clk-provider.h"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: Remove io.h from clk-provider.h
- Update the ACPICA code in the kernel to upstream revision 20190509
including one regression fix:
* Prevent excessive ACPI debug messages from being printed
by moving the ACPI_DEBUG_DEFAULT definition to the right
place (Erik Schmauss).
- Set the enable_for_wake bits for wakeup GPEs during suspend to
idle to allow acpi_enable_all_wakeup_gpes() to enable them as
aproppriate and make wakeup devices sighaling events through ACPI
GPEs work with suspend-to-idle again (Rajat Jain).
- Use 64 bits to store the return values of _ADR which are assumed
to be 64-bit by some bus specs and may contain nonzero bits in the
upper 32 bits part for some devices (Pierre-Louis Bossart).
- Fix two minor issues with the ACPI documentation (Sakari Ailus).
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Merge tag 'acpi-5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These fix two regressions introduced during the 5.0 cycle, in ACPICA
and in device PM, cause the values returned by _ADR to be stored in 64
bits and fix two ACPI documentation issues.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20190509
including one regression fix:
* Prevent excessive ACPI debug messages from being printed by
moving the ACPI_DEBUG_DEFAULT definition to the right place
(Erik Schmauss).
- Set the enable_for_wake bits for wakeup GPEs during suspend to idle
to allow acpi_enable_all_wakeup_gpes() to enable them as
aproppriate and make wakeup devices sighaling events through ACPI
GPEs work with suspend-to-idle again (Rajat Jain).
- Use 64 bits to store the return values of _ADR which are assumed to
be 64-bit by some bus specs and may contain nonzero bits in the
upper 32 bits part for some devices (Pierre-Louis Bossart).
- Fix two minor issues with the ACPI documentation (Sakari Ailus)"
* tag 'acpi-5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Set enable_for_wake for wakeup GPEs during suspend-to-idle
Documentation: ACPI: Direct references are allowed to devices only
Documentation: ACPI: Use tabs for graph ASL indentation
ACPICA: Update version to 20190509
ACPICA: Linux: move ACPI_DEBUG_DEFAULT flag out of ifndef
ACPI: bus: change _ADR representation to 64 bits
* acpi-bus:
ACPI: bus: change _ADR representation to 64 bits
* acpi-doc:
Documentation: ACPI: Direct references are allowed to devices only
Documentation: ACPI: Use tabs for graph ASL indentation
* acpi-pm:
ACPI: PM: Set enable_for_wake for wakeup GPEs during suspend-to-idle
I noticed that recently multiple systems (chromebooks) couldn't wake
from S0ix using LID or Keyboard after updating to a newer kernel. I
bisected and it turned up commit f941d3e41d ("ACPI: EC / PM: Disable
non-wakeup GPEs for suspend-to-idle"). I checked that the issue got
fixed if that commit was reverted.
I debugged and found that although PNP0C0D:00 (representing the LID)
is wake capable and should wakeup the system per the code in
acpi_wakeup_gpe_init() and in drivers/acpi/button.c:
localhost /sys # cat /proc/acpi/wakeup
Device S-state Status Sysfs node
LID0 S4 *enabled platform:PNP0C0D:00
CREC S5 *disabled platform:GOOG0004:00
*disabled platform:cros-ec-dev.1.auto
*disabled platform:cros-ec-accel.0
*disabled platform:cros-ec-accel.1
*disabled platform:cros-ec-gyro.0
*disabled platform:cros-ec-ring.0
*disabled platform:cros-usbpd-charger.2.auto
*disabled platform:cros-usbpd-logger.3.auto
D015 S3 *enabled i2c:i2c-ELAN0000:00
PENH S3 *enabled platform:PRP0001:00
XHCI S3 *enabled pci:0000:00:14.0
GLAN S4 *disabled
WIFI S3 *disabled pci:0000:00:14.3
localhost /sys #
On debugging, I found that its corresponding GPE is not being enabled.
The particular GPE's "gpe_register_info->enable_for_wake" does not
have any bits set when acpi_enable_all_wakeup_gpes() comes around to
use it. I looked at code and could not find any other code path that
should set the bits in "enable_for_wake" bitmask for the wake enabled
devices for s2idle. [I do see that it happens for S3 in
acpi_sleep_prepare()].
Thus I used the same call to enable the GPEs for wake enabled devices,
and verified that this fixes the regression I was seeing on multiple
of my devices.
[ rjw: The problem is that commit f941d3e41d ("ACPI: EC / PM:
Disable non-wakeup GPEs for suspend-to-idle") forgot to add
the acpi_enable_wakeup_devices() call for s2idle along with
acpi_enable_all_wakeup_gpes(). ]
Fixes: f941d3e41d ("ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203579
Signed-off-by: Rajat Jain <rajatja@google.com>
[ rjw: Subject & changelog ]
Cc: 5.0+ <stable@vger.kernel.org> # 5.0+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Including:
- ATS support for ARM-SMMU-v3.
- AUX domain support in the IOMMU-API and the Intel VT-d driver.
This adds support for multiple DMA address spaces per
(PCI-)device. The use-case is to multiplex devices between
host and KVM guests in a more flexible way than supported by
SR-IOV.
- The Rest are smaller cleanups and fixes, two of which needed
to be reverted after testing in linux-next.
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Merge tag 'iommu-updates-v5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
- ATS support for ARM-SMMU-v3.
- AUX domain support in the IOMMU-API and the Intel VT-d driver. This
adds support for multiple DMA address spaces per (PCI-)device. The
use-case is to multiplex devices between host and KVM guests in a
more flexible way than supported by SR-IOV.
- the rest are smaller cleanups and fixes, two of which needed to be
reverted after testing in linux-next.
* tag 'iommu-updates-v5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (45 commits)
Revert "iommu/amd: Flush not present cache in iommu_map_page"
Revert "iommu/amd: Remove the leftover of bypass support"
iommu/vt-d: Fix leak in intel_pasid_alloc_table on error path
iommu/vt-d: Make kernel parameter igfx_off work with vIOMMU
iommu/vt-d: Set intel_iommu_gfx_mapped correctly
iommu/amd: Flush not present cache in iommu_map_page
iommu/vt-d: Cleanup: no spaces at the start of a line
iommu/vt-d: Don't request page request irq under dmar_global_lock
iommu/vt-d: Use struct_size() helper
iommu/mediatek: Fix leaked of_node references
iommu/amd: Remove amd_iommu_pd_list
iommu/arm-smmu: Log CBFRSYNRA register on context fault
iommu/arm-smmu-v3: Don't disable SMMU in kdump kernel
iommu/arm-smmu-v3: Disable tagged pointers
iommu/arm-smmu-v3: Add support for PCI ATS
iommu/arm-smmu-v3: Link domains and devices
iommu/arm-smmu-v3: Add a master->domain pointer
iommu/arm-smmu-v3: Store SteamIDs in master
iommu/arm-smmu-v3: Rename arm_smmu_master_data to arm_smmu_master
ACPI/IORT: Check ATS capability in root complex nodes
...
Standards such as the MIPI DisCo for SoundWire 1.0 specification
assume the _ADR field is 64 bits.
_ADR is defined as an "Integer" represented as 64 bits since ACPI 2.0
released in 2002. The low levels already use _ADR as 64 bits, e.g. in
struct acpi_device_info.
This patch bumps the representation used for sysfs to 64 bits. To
avoid any compatibility/ABI issues, the printf format is only extended
to 16 characters when the actual _ADR value exceeds the 32 bit
maximum.
Example with a SoundWire device, the results show the complete
vendorID and linkID which were omitted before:
Before:
$ more /sys/bus/acpi/devices/device\:38/adr
0x5d070000
After:
$ more /sys/bus/acpi/devices/device\:38/adr
0x000010025d070000
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[ rjw: Replace 0xFFFFFFFF with U32_MAX, clean up subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Here is the "big" set of driver core patches for 5.2-rc1
There are a number of ACPI patches in here as well, as Rafael said they
should go through this tree due to the driver core changes they
required. They have all been acked by the ACPI developers.
There are also a number of small subsystem-specific changes in here, due
to some changes to the kobject core code. Those too have all been acked
by the various subsystem maintainers.
As for content, it's pretty boring outside of the ACPI changes:
- spdx cleanups
- kobject documentation updates
- default attribute groups for kobjects
- other minor kobject/driver core fixes
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 'driver-core-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core/kobject updates from Greg KH:
"Here is the "big" set of driver core patches for 5.2-rc1
There are a number of ACPI patches in here as well, as Rafael said
they should go through this tree due to the driver core changes they
required. They have all been acked by the ACPI developers.
There are also a number of small subsystem-specific changes in here,
due to some changes to the kobject core code. Those too have all been
acked by the various subsystem maintainers.
As for content, it's pretty boring outside of the ACPI changes:
- spdx cleanups
- kobject documentation updates
- default attribute groups for kobjects
- other minor kobject/driver core fixes
All have been in linux-next for a while with no reported issues"
* tag 'driver-core-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (47 commits)
kobject: clean up the kobject add documentation a bit more
kobject: Fix kernel-doc comment first line
kobject: Remove docstring reference to kset
firmware_loader: Fix a typo ("syfs" -> "sysfs")
kobject: fix dereference before null check on kobj
Revert "driver core: platform: Fix the usage of platform device name(pdev->name)"
init/config: Do not select BUILD_BIN2C for IKCONFIG
Provide in-kernel headers to make extending kernel easier
kobject: Improve doc clarity kobject_init_and_add()
kobject: Improve docs for kobject_add/del
driver core: platform: Fix the usage of platform device name(pdev->name)
livepatch: Replace klp_ktype_patch's default_attrs with groups
cpufreq: schedutil: Replace default_attrs field with groups
padata: Replace padata_attr_type default_attrs field with groups
irqdesc: Replace irq_kobj_type's default_attrs field with groups
net-sysfs: Replace ktype default_attrs field with groups
block: Replace all ktype default_attrs with groups
samples/kobject: Replace foo_ktype's default_attrs field with groups
kobject: Add support for default attribute groups to kobj_type
driver core: Postpone DMA tear-down until after devres release for probe failure
...
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Merge tag 'printk-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- Allow state reset of printk_once() calls.
- Prevent crashes when dereferencing invalid pointers in vsprintf().
Only the first byte is checked for simplicity.
- Make vsprintf warnings consistent and inlined.
- Treewide conversion of obsolete %pf, %pF to %ps, %pF printf
modifiers.
- Some clean up of vsprintf and test_printf code.
* tag 'printk-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
lib/vsprintf: Make function pointer_string static
vsprintf: Limit the length of inlined error messages
vsprintf: Avoid confusion between invalid address and value
vsprintf: Prevent crash when dereferencing invalid pointers
vsprintf: Consolidate handling of unknown pointer specifiers
vsprintf: Factor out %pO handler as kobject_string()
vsprintf: Factor out %pV handler as va_format()
vsprintf: Factor out %p[iI] handler as ip_addr_string()
vsprintf: Do not check address of well-known strings
vsprintf: Consistent %pK handling for kptr_restrict == 0
vsprintf: Shuffle restricted_pointer()
printk: Tie printk_once / printk_deferred_once into .data.once for reset
treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
lib/test_printf: Switch to bitmap_zalloc()
- Fix the handling of data nodes in the ACPI properties support
code for devices with child devices and hierarchical _DSD
properties (Pierre-Louis Bossart).
- Add fwnode_graph_get_endpoint_by_id() helper for endpoint lookup
in device property graphs (Sakari Ailus).
- Restore the _DSD data subnodes GUID comment inadvertently removed
by one of previous changes (Shunyong Yang).
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Merge tag 'devprop-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework updates from Rafael Wysocki:
"These fix the handling of data nodes in the ACPI properties support
code, add a new helper for endpoint lookup in property graphs and
restore a comment inadvertently removed by one of previous changes.
Specifics:
- Fix the handling of data nodes in the ACPI properties support code
for devices with child devices and hierarchical _DSD properties
(Pierre-Louis Bossart).
- Add fwnode_graph_get_endpoint_by_id() helper for endpoint lookup in
device property graphs (Sakari Ailus).
- Restore the _DSD data subnodes GUID comment inadvertently removed
by one of previous changes (Shunyong Yang)"
* tag 'devprop-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / property: fix handling of data_nodes in acpi_get_next_subnode()
device property: Add fwnode_graph_get_endpoint_by_id()
ACPI: property: restore _DSD data subnodes GUID comment
- Fix the handling of Performance and Energy Bias Hint (EPB) on
Intel processors and expose it to user space via sysfs to avoid
having to access it through the generic MSR I/F (Rafael Wysocki).
- Improve the handling of global turbo changes made by the platform
firmware in the intel_pstate driver (Rafael Wysocki).
- Convert some slow-path static_cpu_has() callers to boot_cpu_has()
in cpufreq (Borislav Petkov).
- Fix the frequency calculation loop in the armada-37xx cpufreq
driver (Gregory CLEMENT).
- Fix possible object reference leaks in multuple cpufreq drivers
(Wen Yang).
- Fix kerneldoc comment in the centrino cpufreq driver (dongjian).
- Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan
Kumar).
- Add support for lx2160a and ls1028a to the qoriq cpufreq driver
(Vabhav Sharma, Yuantian Tang).
- Fix kobject memory leak in the cpufreq core (Viresh Kumar).
- Simplify the IOwait boosting in the schedutil cpufreq governor
and rework the TSC cpufreq notifier on x86 (Rafael Wysocki).
- Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin).
- Improve the cpufreq documentation, add SPDX license tags to
some PM documentation files and unify copyright notices in
them (Rafael Wysocki).
- Add support for "CPU" domains to the generic power domains (genpd)
framework and provide low-level PSCI firmware support for that
feature (Ulf Hansson).
- Rearrange the PSCI firmware support code and add support for
SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla).
- Improve genpd support for devices in multiple power domains (Ulf
Hansson).
- Unify target residency for the AFTR and coupled AFTR states in the
exynos cpuidle driver (Marek Szyprowski).
- Introduce new helper routine in the operating performance points
(OPP) framework (Andrew-sh.Cheng).
- Add support for passing on-die termination (ODT) and auto power
down parameters from the kernel to Trusted Firmware-A (TF-A) to
the rk3399_dmc devfreq driver (Enric Balletbo i Serra).
- Add tracing to devfreq (Lukasz Luba).
- Make the exynos-bus devfreq driver suspend all devices on system
shutdown (Marek Szyprowski).
- Fix a few minor issues in the devfreq subsystem and clean it up
somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring,
Saravana Kannan, Yangtao Li).
- Improve system wakeup diagnostics (Stephen Boyd).
- Rework filesystem sync messages emitted during system suspend and
hibernation (Harry Pan).
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Merge tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These fix the (Intel-specific) Performance and Energy Bias Hint (EPB)
handling and expose it to user space via sysfs, fix and clean up
several cpufreq drivers, add support for two new chips to the qoriq
cpufreq driver, fix, simplify and clean up the cpufreq core and the
schedutil governor, add support for "CPU" domains to the generic power
domains (genpd) framework and provide low-level PSCI firmware support
for that feature, fix the exynos cpuidle driver and fix a couple of
issues in the devfreq subsystem and clean it up.
Specifics:
- Fix the handling of Performance and Energy Bias Hint (EPB) on Intel
processors and expose it to user space via sysfs to avoid having to
access it through the generic MSR I/F (Rafael Wysocki).
- Improve the handling of global turbo changes made by the platform
firmware in the intel_pstate driver (Rafael Wysocki).
- Convert some slow-path static_cpu_has() callers to boot_cpu_has()
in cpufreq (Borislav Petkov).
- Fix the frequency calculation loop in the armada-37xx cpufreq
driver (Gregory CLEMENT).
- Fix possible object reference leaks in multuple cpufreq drivers
(Wen Yang).
- Fix kerneldoc comment in the centrino cpufreq driver (dongjian).
- Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan
Kumar).
- Add support for lx2160a and ls1028a to the qoriq cpufreq driver
(Vabhav Sharma, Yuantian Tang).
- Fix kobject memory leak in the cpufreq core (Viresh Kumar).
- Simplify the IOwait boosting in the schedutil cpufreq governor and
rework the TSC cpufreq notifier on x86 (Rafael Wysocki).
- Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin).
- Improve the cpufreq documentation, add SPDX license tags to some PM
documentation files and unify copyright notices in them (Rafael
Wysocki).
- Add support for "CPU" domains to the generic power domains (genpd)
framework and provide low-level PSCI firmware support for that
feature (Ulf Hansson).
- Rearrange the PSCI firmware support code and add support for
SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla).
- Improve genpd support for devices in multiple power domains (Ulf
Hansson).
- Unify target residency for the AFTR and coupled AFTR states in the
exynos cpuidle driver (Marek Szyprowski).
- Introduce new helper routine in the operating performance points
(OPP) framework (Andrew-sh.Cheng).
- Add support for passing on-die termination (ODT) and auto power
down parameters from the kernel to Trusted Firmware-A (TF-A) to the
rk3399_dmc devfreq driver (Enric Balletbo i Serra).
- Add tracing to devfreq (Lukasz Luba).
- Make the exynos-bus devfreq driver suspend all devices on system
shutdown (Marek Szyprowski).
- Fix a few minor issues in the devfreq subsystem and clean it up
somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring,
Saravana Kannan, Yangtao Li).
- Improve system wakeup diagnostics (Stephen Boyd).
- Rework filesystem sync messages emitted during system suspend and
hibernation (Harry Pan)"
* tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits)
cpufreq: Fix kobject memleak
cpufreq: armada-37xx: fix frequency calculation for opp
cpufreq: centrino: Fix centrino_setpolicy() kerneldoc comment
cpufreq: qoriq: add support for lx2160a
x86: tsc: Rework time_cpufreq_notifier()
PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name()
PM / Domains: Search for the CPU device outside the genpd lock
PM / Domains: Drop unused in-parameter to some genpd functions
PM / Domains: Use the base device for driver_deferred_probe_check_state()
cpufreq: qoriq: Add ls1028a chip support
PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain
PM / Domains: Allow OF lookup for multi PM domain case from ->attach_dev()
PM / Domains: Don't kfree() the virtual device in the error path
cpufreq: Move ->get callback check outside of __cpufreq_get()
PM / Domains: remove unnecessary unlikely()
cpufreq: Remove needless bios_limit check in show_bios_limit()
drivers/cpufreq/acpi-cpufreq.c: This fixes the following checkpatch warning
firmware/psci: add support for SYSTEM_RESET2
PM / devfreq: add tracing for scheduling work
trace: events: add devfreq trace event file
...
- Convert the ACPI documentation in the kernel source tree to the
.rst format and split it into the admin guide, driver API and
firmware guide parts (Changbin Du).
- Add a PRP0001 usage example to the ACPI documentation (Thomas
Preston).
- Switch over the users of the acpi_dev_get_first_match_name()
library function which turned out to be problematic to a new,
better one called acpi_dev_get_first_match_dev() (Andy Shevchenko,
YueHaibing).
- Update the ACPICA code in the kernel to upstream release 20190405
including:
* Null pointer dereference check in acpi_ns_delete_node() (Erik
Schmauss).
* Multiple macro and function name changes (Bob Moore).
* Predefined operation region name fix (Erik Schmauss).
- Fix hibernation issue on systems using the Baytrail and
Cherrytrail Intel SoCs introduced during the 4.20 development
cycle (Hans de Goede).
- Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui).
- Fix button handling during system resume (Zhang Rui).
- Add a device PM diagnostic message (Rafael Wysocki).
- Clean up the code, comments and white space in multiple places
(Bjorn Helgaas, Gustavo Silva, Kefeng Wang).
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Merge tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These rearrange the ACPI documentation by converting it to the .rst
format and splitting it into clear categories (admin guide, driver
API, firmware guide), switch over multiple users of a problematic
library function to a new better one, update the ACPICA code in the
kernel to a new upstream release, fix a few issues, improve power
device management diagnostics and do some cleanups.
Specifics:
- Convert the ACPI documentation in the kernel source tree to the
.rst format and split it into the admin guide, driver API and
firmware guide parts (Changbin Du).
- Add a PRP0001 usage example to the ACPI documentation (Thomas
Preston).
- Switch over the users of the acpi_dev_get_first_match_name()
library function which turned out to be problematic to a new,
better one called acpi_dev_get_first_match_dev() (Andy Shevchenko,
YueHaibing).
- Update the ACPICA code in the kernel to upstream release 20190405
including:
* Null pointer dereference check in acpi_ns_delete_node() (Erik
Schmauss).
* Multiple macro and function name changes (Bob Moore).
* Predefined operation region name fix (Erik Schmauss).
- Fix hibernation issue on systems using the Baytrail and Cherrytrail
Intel SoCs introduced during the 4.20 development cycle (Hans de
Goede).
- Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui).
- Fix button handling during system resume (Zhang Rui).
- Add a device PM diagnostic message (Rafael Wysocki).
- Clean up the code, comments and white space in multiple places
(Bjorn Helgaas, Gustavo Silva, Kefeng Wang)"
* tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
Documentation: ACPI: move video_extension.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move ssdt-overlays.txt to admin-guide/acpi and convert to reST
Documentation: ACPI: move lpit.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move cppc_sysfs.txt to admin-guide/acpi and convert to reST
Documentation: ACPI: move apei/einj.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move apei/output_format.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move aml-debugger.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move method-tracing.txt to firmware-guide/acpi and convert to rsST
Documentation: ACPI: move debug.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move dsd/data-node-references.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move dsd/graph.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move acpi-lid.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move i2c-muxes.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move dsdt-override.txt to admin-guide/acpi and convert to reST
Documentation: ACPI: move initrd_table_override.txt to admin-guide/acpi and convert to reST
Documentation: ACPI: move method-customizing.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move gpio-properties.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move DSD-properties-rules.txt to firmware-guide/acpi and covert to reST
Documentation: ACPI: move scan_handlers.txt to driver-api/acpi and convert to reST
Documentation: ACPI: move linuxized-acpica.txt to driver-api/acpi and convert to reST
...
Mostly just incremental improvements here:
- Introduce AT_HWCAP2 for advertising CPU features to userspace
- Expose SVE2 availability to userspace
- Support for "data cache clean to point of deep persistence" (DC PODP)
- Honour "mitigations=off" on the cmdline and advertise status via sysfs
- CPU timer erratum workaround (Neoverse-N1 #1188873)
- Introduce perf PMU driver for the SMMUv3 performance counters
- Add config option to disable the kuser helpers page for AArch32 tasks
- Futex modifications to ensure liveness under contention
- Rework debug exception handling to seperate kernel and user handlers
- Non-critical fixes 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:
"Mostly just incremental improvements here:
- Introduce AT_HWCAP2 for advertising CPU features to userspace
- Expose SVE2 availability to userspace
- Support for "data cache clean to point of deep persistence" (DC PODP)
- Honour "mitigations=off" on the cmdline and advertise status via
sysfs
- CPU timer erratum workaround (Neoverse-N1 #1188873)
- Introduce perf PMU driver for the SMMUv3 performance counters
- Add config option to disable the kuser helpers page for AArch32 tasks
- Futex modifications to ensure liveness under contention
- Rework debug exception handling to seperate kernel and user
handlers
- Non-critical fixes and cleanup"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits)
Documentation: Add ARM64 to kernel-parameters.rst
arm64/speculation: Support 'mitigations=' cmdline option
arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB
arm64: enable generic CPU vulnerabilites support
arm64: add sysfs vulnerability show for speculative store bypass
arm64: Fix size of __early_cpu_boot_status
clocksource/arm_arch_timer: Use arch_timer_read_counter to access stable counters
clocksource/arm_arch_timer: Remove use of workaround static key
clocksource/arm_arch_timer: Drop use of static key in arch_timer_reg_read_stable
clocksource/arm_arch_timer: Direcly assign set_next_event workaround
arm64: Use arch_timer_read_counter instead of arch_counter_get_cntvct
watchdog/sbsa: Use arch_timer_read_counter instead of arch_counter_get_cntvct
ARM: vdso: Remove dependency with the arch_timer driver internals
arm64: Apply ARM64_ERRATUM_1188873 to Neoverse-N1
arm64: Add part number for Neoverse N1
arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32
arm64: mm: Remove pte_unmap_nested()
arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable
arm64: compat: Reduce address limit for 64K pages
...
* acpi-utils:
gpio: merrifield: Fix build err without CONFIG_ACPI
ACPI / utils: Remove deprecated function since no user left
ASoC: Intel: cht_bsw_rt5672: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: cht_bsw_rt5645: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: bytcr_rt5651: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: bytcr_rt5640: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: bytcht_es8316: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: bytcht_da7213: Convert to use acpi_dev_get_first_match_dev()
gpio: merrifield: Convert to use acpi_dev_get_first_match_dev()
extcon: axp288: Convert to use acpi_dev_get_first_match_dev()
ACPI / utils: Introduce acpi_dev_get_first_match_dev() helper
* acpi-video:
ACPI: video: Use vendor backlight on Sony VPCEH3U1E
* acpi-soc:
ACPI / LPSS: Use acpi_lpss_* instead of acpi_subsys_* functions for hibernate
* acpi-button:
ACPI: button: reinitialize button state upon resume
* acpica:
ACPICA: Update version to 20190405
ACPICA: Namespace: add check to avoid null pointer dereference
ACPICA: Update version to 20190329
ACPICA: utilities: fix spelling of PCC to platform_comm_channel
ACPICA: Rename nameseg length macro/define for clarity
ACPICA: Rename nameseg compare macro for clarity
ACPICA: Rename nameseg copy macro for clarity
When the DSDT tables expose devices with subdevices and a set of
hierarchical _DSD properties, the data returned by
acpi_get_next_subnode() is incorrect, with the results suggesting a bad
pointer assignment. The parser works fine with device_nodes or
data_nodes, but not with a combination of the two.
The problem is traced to an invalid pointer used when jumping from
handling device_nodes to data nodes. The existing code looks for data
nodes below the last subdevice found instead of the common root. Fix
by forcing the acpi_device pointer to be derived from the same fwnode
for the two types of subnodes.
This same problem of handling device and data nodes was already fixed
in a similar way by 'commit bf4703fdd1 ("ACPI / property: fix data
node parsing in acpi_get_next_subnode()")' but broken later by 'commit
34055190b1 ("ACPI / property: Add fwnode_get_next_child_node()")', so
this should probably go to linux-stable all the way to 4.12
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Revert commit c8b1917c89 ("ACPICA: Clear status of GPEs before
enabling them") that causes problems with Thunderbolt controllers
to occur if a dock device is connected at init time (the xhci_hcd
and thunderbolt modules crash which prevents peripherals connected
through them from working).
Commit c8b1917c89 effectively causes commit ecc1165b8b ("ACPICA:
Dispatch active GPEs at init time") to get undone, so the problem
addressed by commit ecc1165b8b appears again as a result of it.
Fixes: c8b1917c89 ("ACPICA: Clear status of GPEs before enabling them")
Link: https://lore.kernel.org/lkml/s5hy33siofw.wl-tiwai@suse.de/T/#u
Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1132943
Reported-by: Michael Hirmke <opensuse@mike.franken.de>
Reported-by: Takashi Iwai <tiwai@suse.de>
Cc: 4.17+ <stable@vger.kernel.org> # 4.17+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add driver for Amazon's Annapurna Labs PCIe host controller. The
controller is based on DesignWare's IP.
The controller doesn't support accessing the Root Port's config space via
ECAM, so we obtain its base address via an AMZN0001 device.
Furthermore, the DesignWare PCIe controller doesn't filter out config
transactions sent to devices 1 and up on its bus, so they are filtered by
the driver.
All subordinate buses do support ECAM access.
Implementing specific PCI config access functions involves:
- Adding an init function to obtain the Root Port's base address from
an AMZN0001 device.
- Adding a new entry in the MCFG quirk array.
[bhelgaas: Note that there is no Kconfig option for this driver because it
is only intended for use with the generic ACPI host bridge driver. This
driver is only needed because the DesignWare IP doesn't completely support
ECAM access to the root bus.]
Link: https://lore.kernel.org/lkml/1553774276-24675-1-git-send-email-jonnyc@amazon.com
Co-developed-by: Vladimir Aerov <vaerov@amazon.com>
Signed-off-by: Jonathan Chocron <jonnyc@amazon.com>
Signed-off-by: Vladimir Aerov <vaerov@amazon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
The commit 665ac7e927 ("acpi/hmat: Register processor domain to its
memory") introduced an uninitialized "struct memory_target" that could
cause an incorrect branching.
drivers/acpi/hmat/hmat.c:385:6: warning: variable 'target' is used
uninitialized whenever 'if' condition is false
[-Wsometimes-uninitialized]
if (p->flags & ACPI_HMAT_MEMORY_PD_VALID) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/acpi/hmat/hmat.c:392:6: note: uninitialized use occurs here
if (target && p->flags & ACPI_HMAT_PROCESSOR_PD_VALID) {
^~~~~~
drivers/acpi/hmat/hmat.c:385:2: note: remove the 'if' if its condition
is always true
if (p->flags & ACPI_HMAT_MEMORY_PD_VALID) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/acpi/hmat/hmat.c:369:30: note: initialize the variable 'target'
to silence this warning
struct memory_target *target;
^
= NULL
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Fixes: 665ac7e927 ("acpi/hmat: Register processor domain to its memory")
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ACPI 6.3 changed the subtable "Memory Subsystem Address Range Structure"
to "Memory Proximity Domain Attributes Structure".
Updating and renaming of the structure was included in commit:
ACPICA: ACPI 6.3: HMAT updates (9a8d961f1e)
Rename the enum type to match the subtable and structure naming.
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The commit 665ac7e927 ("acpi/hmat: Register processor domain to its
memory") introduced some memory leaks below due to it fails to release
the heap memory in an error path, and then those statically-allocated
__initdata memory which reference them get freed during boot renders
those heap memory as leaks. Since it is valid to pass NULL to
acpi_put_table(), it is fine to call it even if acpi_get_table() returns
an error.
unreferenced object 0xc8ff8008349e9400 (size 128):
comm "swapper/0", pid 1, jiffies 4294709236 (age 48121.476s)
hex dump (first 32 bytes):
00 d0 9e 34 08 80 ff 84 d8 00 43 11 00 10 ff ff ...4......C.....
00 00 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000869d4503>] __kmalloc+0x568/0x600
[<0000000070fd6afb>] alloc_memory_target+0x50/0xd8
[<00000000efa2081e>] srat_parse_mem_affinity+0x58/0x5c
[<000000008bfaef74>] acpi_parse_entries_array+0x1c8/0x2c0
[<0000000022804877>] acpi_table_parse_entries_array+0x11c/0x138
[<00000000ffe9cd34>] acpi_table_parse_entries+0x7c/0xac
[<00000000a7023afd>] hmat_init+0x90/0x174
[<00000000694a86c1>] do_one_initcall+0x2d8/0x5f8
[<0000000024889da9>] do_initcall_level+0x37c/0x3fc
[<000000009be02908>] do_basic_setup+0x38/0x50
[<0000000037b3ac0a>] kernel_init_freeable+0x194/0x258
[<00000000f5741184>] kernel_init+0x18/0x334
[<000000007b30f423>] ret_from_fork+0x10/0x18
[<000000006c7147a8>] 0xffffffffffffffff
Signed-off-by: Qian Cai <cai@lca.pw>
Fixes: 665ac7e927 ("acpi/hmat: Register processor domain to its memory")
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
_OSC now has a way to inform firmware that OS has the capability to
interpret _HPX Type 3 setting records. This was added by the following
PCI Firmware Specification ECN:
ECN: _HPX and PCIe Completion Timeout related _OSC Enhancements
Date: September 12, 2018
Affected Document: PCI Firmware Specification, Rev. 3.2
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Root complex node in IORT has a bit telling whether it supports ATS or
not. Store this bit in the IOMMU fwspec when setting up a device, so it
can be accessed later by an IOMMU driver. In the future we'll probably
want to store this bit at the host bridge or SMMU rather than in each
endpoint.
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Skip conversion to platform_device and use dev_get_drvdata() directly.
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The strcpy() function is being deprecated. Replace it by the safer
strscpy() and fix the following Coverity warnings:
"You might overrun the 15-character fixed-size string event->bus_id
by copying bus_id without checking the length."
"You might overrun the 20-character fixed-size string event->device_class
by copying device_class without checking the length."
Addresses-Coverity-ID: 139001 ("Copy into fixed size buffer")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 48402cee68 ("ACPI / LPSS: Resume BYT/CHT I2C controllers from
resume_noirq") makes acpi_lpss_{suspend_late,resume_early}() bail early
on BYT/CHT as resume_from_noirq is set.
This means that on resume from hibernate dw_i2c_plat_resume() doesn't get
called by the restore_early callback, acpi_lpss_resume_early(). Instead it
should be called by the restore_noirq callback matching how things are done
when resume_from_noirq is set and we are doing a regular resume.
Change the restore_noirq callback to acpi_lpss_resume_noirq so that
dw_i2c_plat_resume() gets properly called when resume_from_noirq is set
and we are resuming from hibernate.
Likewise also change the poweroff_noirq callback so that
dw_i2c_plat_suspend gets called properly.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202139
Fixes: 48402cee68 ("ACPI / LPSS: Resume BYT/CHT I2C controllers from resume_noirq")
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: 4.20+ <stable@vger.kernel.org> # 4.20+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In a system where, through IORT firmware mappings, the SMMU device is
mapped to a NUMA node that is not online, the kernel bootstrap results
in the following crash:
Unable to handle kernel paging request at virtual address 0000000000001388
Mem abort info:
ESR = 0x96000004
Exception class = DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
Data abort info:
ISV = 0, ISS = 0x00000004
CM = 0, WnR = 0
[0000000000001388] user address but active_mm is swapper
Internal error: Oops: 96000004 [#1] SMP
Modules linked in:
CPU: 5 PID: 1 Comm: swapper/0 Not tainted 5.0.0 #15
pstate: 80c00009 (Nzcv daif +PAN +UAO)
pc : __alloc_pages_nodemask+0x13c/0x1068
lr : __alloc_pages_nodemask+0xdc/0x1068
...
Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____))
Call trace:
__alloc_pages_nodemask+0x13c/0x1068
new_slab+0xec/0x570
___slab_alloc+0x3e0/0x4f8
__slab_alloc+0x60/0x80
__kmalloc_node_track_caller+0x10c/0x478
devm_kmalloc+0x44/0xb0
pinctrl_bind_pins+0x4c/0x188
really_probe+0x78/0x2b8
driver_probe_device+0x64/0x110
device_driver_attach+0x74/0x98
__driver_attach+0x9c/0xe8
bus_for_each_dev+0x84/0xd8
driver_attach+0x30/0x40
bus_add_driver+0x170/0x218
driver_register+0x64/0x118
__platform_driver_register+0x54/0x60
arm_smmu_driver_init+0x24/0x2c
do_one_initcall+0xbc/0x328
kernel_init_freeable+0x304/0x3ac
kernel_init+0x18/0x110
ret_from_fork+0x10/0x1c
Code: f90013b5 b9410fa1 1a9f0694 b50014c2 (b9400804)
---[ end trace dfeaed4c373a32da ]--
Change the dev_set_proximity() hook prototype so that it returns a
value and make it return failure if the PXM->NUMA-node mapping
corresponds to an offline node, fixing the crash.
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Link: https://lore.kernel.org/linux-arm-kernel/20190315021940.86905-1-wangkefeng.wang@huawei.com/
Signed-off-by: Will Deacon <will.deacon@arm.com>
- Compatibility fix for nvdimm-security implementations with a default
zero-key.
- Miscellaneous small fixes for out-of-bound accesses, cleanup after
initialization failures, and missing debug messages.
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Merge tag 'libnvdimm-fixes-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"I debated holding this back for the v5.2 merge window due to the size
of the "zero-key" changes, but affected users would benefit from
having the fixes sooner. It did not make sense to change the zero-key
semantic in isolation for the "secure-erase" command, but instead
include it for all security commands.
The short background on the need for these changes is that some NVDIMM
platforms enable security with a default zero-key rather than let the
OS specify the initial key. This makes the security enabling that
landed in v5.0 unusable for some users.
Summary:
- Compatibility fix for nvdimm-security implementations with a
default zero-key.
- Miscellaneous small fixes for out-of-bound accesses, cleanup after
initialization failures, and missing debug messages"
* tag 'libnvdimm-fixes-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
tools/testing/nvdimm: Retain security state after overwrite
libnvdimm/pmem: fix a possible OOB access when read and write pmem
libnvdimm/security, acpi/nfit: unify zero-key for all security commands
libnvdimm/security: provide fix for secure-erase to use zero-key
libnvdimm/btt: Fix a kmemdup failure check
libnvdimm/namespace: Fix a potential NULL pointer dereference
acpi/nfit: Always dump _DSM output payload
With commit dfa46c50f6 ("ACPI / button: Fix an issue in
button.lid_init_state=ignore mode"), the lid device is considered to be
not compliant to SW_LID if the Lid state is unchanged when updating it.
This is not wrong, but we overlooked the resume case, where Lid state is
updated unconditionally in the button driver .resume() callback. And this
results in warning message "ACPI: button: The lid device is not compliant
to SW_LID." after resume, if the machine is suspended with Lid opened and
then resumed with Lid opened.
Fix this by flushing the cached lid state before updating the Lid device
in .resume() callback.
Fixes: dfa46c50f6 ("ACPI / button: Fix an issue in button.lid_init_state=ignore mode")
Reported-and-tested-by: Zhao Lijian <lijian.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Thomas Gleixner