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2019-07-09Merge tag 'docs-5.3' of git://git.lwn.net/linuxLinus Torvalds
Pull Documentation updates from Jonathan Corbet: "It's been a relatively busy cycle for docs: - A fair pile of RST conversions, many from Mauro. These create more than the usual number of simple but annoying merge conflicts with other trees, unfortunately. He has a lot more of these waiting on the wings that, I think, will go to you directly later on. - A new document on how to use merges and rebases in kernel repos, and one on Spectre vulnerabilities. - Various improvements to the build system, including automatic markup of function() references because some people, for reasons I will never understand, were of the opinion that :c:func:``function()`` is unattractive and not fun to type. - We now recommend using sphinx 1.7, but still support back to 1.4. - Lots of smaller improvements, warning fixes, typo fixes, etc" * tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits) docs: automarkup.py: ignore exceptions when seeking for xrefs docs: Move binderfs to admin-guide Disable Sphinx SmartyPants in HTML output doc: RCU callback locks need only _bh, not necessarily _irq docs: format kernel-parameters -- as code Doc : doc-guide : Fix a typo platform: x86: get rid of a non-existent document Add the RCU docs to the core-api manual Documentation: RCU: Add TOC tree hooks Documentation: RCU: Rename txt files to rst Documentation: RCU: Convert RCU UP systems to reST Documentation: RCU: Convert RCU linked list to reST Documentation: RCU: Convert RCU basic concepts to reST docs: filesystems: Remove uneeded .rst extension on toctables scripts/sphinx-pre-install: fix out-of-tree build docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/ Documentation: PGP: update for newer HW devices Documentation: Add section about CPU vulnerabilities for Spectre Documentation: platform: Delete x86-laptop-drivers.txt docs: Note that :c:func: should no longer be used ...
2019-07-09Merge tag 'acpi-5.3-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These update the ACPICA code in the kernel to upstream revision 20190703, fix up the handling of GPEs in ACPICA, allow some more ACPI code to be built on ARM64 platforms, allow BGRT to be overridden, fix minor issues and clean up assorted pieces of ACPI code. Specifics: - Update the ACPICA code in the kernel to upstream revision 20190703 including: - Initial/default namespace creation simplification (Bob Moore). - Object initialization sequence update (Bob Moore). - Removal of legacy module-level (dead) code (Erik Schmauss). - Table load object initialization update (Erik Schmauss, Nikolaus Voss). - Fix GPE enabling issue in ACPICA causing premature wakeups from suspend-to-idle to occur (Rafael Wysocki). - Allow ACPI AC and battery drivers to be built on non-X86 (Ard Biesheuvel). - Fix address space handler removal in the ACPI PMIC driver for Intel platforms (Andy Shevchenko). - Allow BGRT to be overridden via initrd or configfs (Andrea Oliveri). - Fix object resolution on table loads via configfs (Nikolaus Voss). - Clean up assorted pieces of ACPI code and tools (Colin Ian King, Liguang Zhang, Masahiro Yamada). - Fix documentation build warning, convert the extcon document to ReST and add it to the ACPI documentation (Mauro Carvalho Chehab, Qian Cai)" * tag 'acpi-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / APEI: Remove needless __ghes_check_estatus() calls ACPICA: Update version to 20190703 ACPICA: Update table load object initialization ACPICA: Update for object initialization sequence ACPICA: remove legacy module-level code due to deprecation ACPICA: Namespace: simplify creation of the initial/default namespace ACPI / PMIC: intel: Drop double removal of address space handler ACPI: APD: remove redundant assignment to pointer clk docs: extcon: convert it to ReST and move to ACPI dir ACPI: Make AC and battery drivers available on !X86 ACPICA: Clear status of GPEs on first direct enable ACPI: configfs: Resolve objects on host-directed table loads ACPI: tables: Allow BGRT to be overridden ACPI: OSL: Make a W=1 kernel-doc warning go away ACPI: tools: Exclude tools/* from .gitignore patterns
2019-07-08Merge branch 'acpica'Rafael J. Wysocki
* acpica: ACPICA: Update version to 20190703 ACPICA: Update table load object initialization ACPICA: Update for object initialization sequence ACPICA: remove legacy module-level code due to deprecation ACPICA: Namespace: simplify creation of the initial/default namespace ACPICA: Clear status of GPEs on first direct enable
2019-07-08Merge branches 'acpi-tables', 'acpi-osl', 'acpi-misc' and 'acpi-tools'Rafael J. Wysocki
* acpi-tables: ACPI: configfs: Resolve objects on host-directed table loads ACPI: tables: Allow BGRT to be overridden * acpi-osl: ACPI: OSL: Make a W=1 kernel-doc warning go away * acpi-misc: ACPI: Make AC and battery drivers available on !X86 * acpi-tools: ACPI: tools: Exclude tools/* from .gitignore patterns
2019-07-08Merge branches 'acpi-pm' and 'pm-pci'Rafael J. Wysocki
* acpi-pm: ACPI: PM: Make acpi_sleep_state_supported() non-static ACPI: PM: Allow transitions to D0 to occur in special cases ACPI: PM: Avoid evaluating _PS3 on transitions from D3hot to D3cold ACPI / sleep: Switch to use acpi_dev_get_first_match_dev() ACPI / LPIT: Correct LPIT end address for lpit_process() * pm-pci: ACPI: PM: Unexport acpi_device_get_power() PCI: PM/ACPI: Refresh all stale power state data in pci_pm_complete() PCI / ACPI: Add _PR0 dependent devices ACPI / PM: Introduce concept of a _PR0 dependent device PCI / ACPI: Use cached ACPI device state to get PCI device power state PCI: Do not poll for PME if the device is in D3cold PCI: Add missing link delays required by the PCIe spec PCI: PM: Replace pci_dev_keep_suspended() with two functions PCI: PM: Avoid resuming devices in D3hot during system suspend
2019-07-06ACPI: PM: Make acpi_sleep_state_supported() non-staticDexuan Cui
With some upcoming patches to save/restore the Hyper-V drivers related states, a Linux VM running on Hyper-V will be able to hibernate. When a Linux VM hibernates, unluckily we must disable the memory hot-add/remove and balloon up/down capabilities in the hv_balloon driver (drivers/hv/hv_balloon.c), because these can not really work according to the design of the related back-end driver on the host. By default, Hyper-V does not enable the virtual ACPI S4 state for a VM; on recent Hyper-V hosts, the administrator is able to enable the virtual ACPI S4 state for a VM, so we hope to use the presence of the virtual ACPI S4 state as a hint for hv_balloon to disable the aforementioned capabilities. In this way, hibernation will work more reliably, from the user's perspective. By marking acpi_sleep_state_supported() non-static, we'll be able to implement a hv_is_hibernation_supported() API in the always-built-in module arch/x86/hyperv/hv_init.c, and the API will be called by hv_balloon. Signed-off-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-04ACPI: PM: Unexport acpi_device_get_power()Rafael J. Wysocki
Using acpi_device_get_power() outside of ACPI device initialization and ACPI sysfs is problematic due to the way in which power resources are handled by it, so unexport it and add a paragraph explaining the pitfalls to its kerneldoc comment. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-07-04ACPICA: Update version to 20190703Bob Moore
ACPICA commit 450ffd8b9c100db561ecf23063620cb107d68c30 Version 20190703. Link: https://github.com/acpica/acpica/commit/450ffd8b Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-27ACPI / PM: Introduce concept of a _PR0 dependent deviceMika Westerberg
If there are shared power resources between otherwise unrelated devices turning them on causes the other devices sharing them to be powered up as well. In case of PCI devices go into D0uninitialized state meaning that if they were configured to trigger wake that configuration is lost at this point. For this reason introduce a concept of "_PR0 dependent device" that can be added to any ACPI device that has power resources. The dependent device will be included in a list of dependent devices for all power resources returned by the ACPI device's _PR0 (assuming it has one). Whenever a power resource having dependent devices is turned physically on (its _ON method is called) we runtime resume all of them to allow their driver or in case of PCI the PCI core to re-initialize the device and its wake configuration. This adds two functions that can be used to add and remove these dependent devices. Note the dependent device does not necessary need share power resources so this functionality can be used to add "software dependencies" as well if needed. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-14Merge tag 'v5.2-rc4' into mauroJonathan Corbet
We need to pick up post-rc1 changes to various document files so they don't get lost in Mauro's massive RST conversion push.
2019-06-08docs: fix broken documentation linksMauro Carvalho Chehab
Mostly due to x86 and acpi conversion, several documentation links are still pointing to the old file. Fix them. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by: Wolfram Sang <wsa@the-dreams.de> Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com> Reviewed-by: Bhupesh Sharma <bhsharma@redhat.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441Thomas Gleixner
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 version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428Thomas Gleixner
Based on 1 normalized pattern(s): this file is released under the gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 68 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190114.292346262@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-04ACPI: OSL: Make a W=1 kernel-doc warning go awayQian Cai
It appears that kernel-doc does not understand the return type *__ref, drivers/acpi/osl.c:306: warning: cannot understand function prototype: 'void __iomem *__ref acpi_os_map_iomem(acpi_physical_address phys, acpi_size size) Signed-off-by: Qian Cai <cai@lca.pw> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner
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>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner
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>
2019-05-15Merge tag 'acpi-5.2-rc1-2' of ↵Linus Torvalds
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
2019-05-15Merge branches 'acpi-bus', 'acpi-doc' and 'acpi-pm'Rafael J. Wysocki
* 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
2019-05-13ACPICA: Update version to 20190509Bob Moore
ACPICA commit 36449fa1dc914113f2b096622d22c2621fd22861 Version 20190509. Link: https://github.com/acpica/acpica/commit/36449fa1 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-05-13ACPICA: Linux: move ACPI_DEBUG_DEFAULT flag out of ifndefErik Schmauss
ACPICA commit c14f17fa0acf8c93497ce04b9a7f4ada51b69383 This flag should not be included in #ifndef CONFIG_ACPI. It should be used unconditionally. Link: https://github.com/acpica/acpica/commit/c14f17fa Fixes: aa9aaa4d61c0 ("ACPI: use different default debug value than ACPICA") Reported-by: Gabriel C <nix.or.die@gmail.com> Tested-by: Gabriel C <nix.or.die@gmail.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Cc: 5.1+ <stable@vger.kernel.org> 5.1+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-05-10ACPI: bus: change _ADR representation to 64 bitsPierre-Louis Bossart
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>
2019-05-07Merge tag 'driver-core-5.2-rc1' of ↵Linus Torvalds
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 ...
2019-05-06Merge branches 'acpi-utils', 'acpi-video', 'acpi-soc' and 'acpi-button'Rafael J. Wysocki
* 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
2019-04-25acpi/hmat: Update acpi_hmat_type enum with ACPI_HMAT_TYPE_PROXIMITYAlison Schofield
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 (9a8d961f1ef835b0d338fbe13da03cb424e87ae5) 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>
2019-04-23gpio: merrifield: Fix build err without CONFIG_ACPIYueHaibing
When building CONFIG_ACPI is not set gcc warn this: drivers/gpio/gpio-merrifield.c: In function mrfld_gpio_get_pinctrl_dev_name: drivers/gpio/gpio-merrifield.c:388:19: error: dereferencing pointer to incomplete type struct acpi_device put_device(&adev->dev); ^~ Reported-by: Hulk Robot <hulkci@huawei.com> Fixes: d00d2109c367 ("gpio: merrifield: Convert to use acpi_dev_get_first_match_dev()") Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-09ACPICA: Update version to 20190405Bob Moore
ACPICA commit 0c1495275a35071b957ab59549761c6cd3f413b7 Version 20190405. Link: https://github.com/acpica/acpica/commit/0c149527 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-09ACPICA: Update version to 20190329Bob Moore
ACPICA commit 802ec363be67580f52251219ef90613008495392 Version 20190329. Link: https://github.com/acpica/acpica/commit/802ec363 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-09ACPICA: Rename nameseg length macro/define for clarityBob Moore
ACPICA commit 24870bd9e73d71e2a1ff0a1e94519f8f8409e57d ACPI_NAME_SIZE changed to ACPI_NAMESEG_SIZE This clarifies that this is the length of an individual nameseg, not the length of a generic namestring/namepath. Improves understanding of the code. Link: https://github.com/acpica/acpica/commit/24870bd9 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-09ACPICA: Rename nameseg compare macro for clarityBob Moore
ACPICA commit 92ec0935f27e217dff0b176fca02c2ec3d782bb5 ACPI_COMPARE_NAME changed to ACPI_COMPARE_NAMESEG This clarifies (1) this is a compare on 4-byte namesegs, not a generic compare. Improves understanding of the code. Link: https://github.com/acpica/acpica/commit/92ec0935 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-09ACPICA: Rename nameseg copy macro for clarityBob Moore
ACPICA commit 19c18d3157945d1b8b64a826f0a8e848b7dbb127 ACPI_MOVE_NAME changed to ACPI_COPY_NAMESEG This clarifies (1) this is a copy operation, and (2) it operates on ACPI name_segs. Improves understanding of the code. Link: https://github.com/acpica/acpica/commit/19c18d31 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-01ACPI / utils: Remove deprecated function since no user leftAndy Shevchenko
There is no more user of acpi_dev_get_first_match_name(), which is deprecated and has no user left, so, remove it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-01ACPI / utils: Introduce acpi_dev_get_first_match_dev() helperAndy Shevchenko
The acpi_dev_get_first_match_name() is missing put_device() call and thus keeping reference counting unbalanced. In order to fix the issue introduce a new helper to convert existing users one-by-one to a better API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-03-25ACPI: use different default debug value than ACPICAErik Schmauss
Rather than setting debug output flags during early init, its makes more sense to simply re-define ACPI_DEBUG_DEFAULT specifically for Linux. ACPICA commit 60903715711f4b00ca1831779a8a23279a66497d Link: https://github.com/acpica/acpica/commit/60903715 Fixes: ce5cbf53496b ("ACPI: Set debug output flags independent of ACPICA") Reported-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Tested-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-03-06Merge tag 'acpi-5.1-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These are ACPICA updates including ACPI 6.3 support among other things, APEI updates including the ARM Software Delegated Exception Interface (SDEI) support, ACPI EC driver fixes and cleanups and other assorted improvements. Specifics: - Update the ACPICA code in the kernel to upstream revision 20190215 including ACPI 6.3 support and more: * New predefined methods: _NBS, _NCH, _NIC, _NIH, and _NIG (Erik Schmauss). * Update of the PCC Identifier structure in PDTT (Erik Schmauss). * Support for new Generic Affinity Structure subtable in SRAT (Erik Schmauss). * New PCC operation region support (Erik Schmauss). * Support for GICC statistical profiling for MADT (Erik Schmauss). * New Error Disconnect Recover notification support (Erik Schmauss). * New PPTT Processor Structure Flags fields support (Erik Schmauss). * ACPI 6.3 HMAT updates (Erik Schmauss). * GTDT Revision 3 support (Erik Schmauss). * Legacy module-level code (MLC) support removal (Erik Schmauss). * Update/clarification of messages for control method failures (Bob Moore). * Warning on creation of a zero-length opregion (Bob Moore). * acpiexec option to dump extra info for memory leaks (Bob Moore). * More ACPI error to firmware error conversions (Bob Moore). * Debugger fix (Bob Moore). * Copyrights update (Bob Moore) - Clean up sleep states support code in ACPICA (Christoph Hellwig) - Rework in_nmi() handling in the APEI code and add suppor for the ARM Software Delegated Exception Interface (SDEI) to it (James Morse) - Fix possible out-of-bounds accesses in BERT-related core (Ross Lagerwall) - Fix the APEI code parsing HEST that includes a Deferred Machine Check subtable (Yazen Ghannam) - Use DEFINE_DEBUGFS_ATTRIBUTE for APEI-related debugfs files (YueHaibing) - Switch the APEI ERST code to the new generic UUID API (Andy Shevchenko) - Update the MAINTAINERS entry for APEI (Borislav Petkov) - Fix and clean up the ACPI EC driver (Rafael Wysocki, Zhang Rui) - Fix DMI checks handling in the ACPI backlight driver and add the "Lunch Box" chassis-type check to it (Hans de Goede) - Add support for using ACPI table overrides included in built-in initrd images (Shunyong Yang) - Update ACPI device enumeration to treat the PWM2 device as "always present" on Lenovo Yoga Book (Yauhen Kharuzhy) - Fix up the enumeration of device objects with the PRP0001 device ID (Andy Shevchenko) - Clean up PPTT parsing error messages (John Garry) - Clean up debugfs files creation handling (Greg Kroah-Hartman, Rafael Wysocki) - Clean up the ACPI DPTF Makefile (Masahiro Yamada)" * tag 'acpi-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits) ACPI / bus: Respect PRP0001 when retrieving device match data ACPICA: Update version to 20190215 ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting ACPICA: ACPI 6.3: add GTDT Revision 3 support ACPICA: ACPI 6.3: HMAT updates ACPICA: ACPI 6.3: PPTT add additional fields in Processor Structure Flags ACPICA: ACPI 6.3: add Error Disconnect Recover Notification value ACPICA: ACPI 6.3: MADT: add support for statistical profiling in GICC ACPICA: ACPI 6.3: add PCC operation region support for AML interpreter efi: cper: Fix possible out-of-bounds access ACPI: APEI: Fix possible out-of-bounds access to BERT region ACPICA: ACPI 6.3: SRAT: add Generic Affinity Structure subtable ACPICA: ACPI 6.3: Add Trigger order to PCC Identifier structure in PDTT ACPICA: ACPI 6.3: Adding predefined methods _NBS, _NCH, _NIC, _NIH, and _NIG ACPICA: Update/clarify messages for control method failures ACPICA: Debugger: Fix possible fault with the "test objects" command ACPICA: Interpreter: Emit warning for creation of a zero-length op region ACPICA: Remove legacy module-level code support ACPI / x86: Make PWM2 device always present at Lenovo Yoga Book ACPI / video: Extend chassis-type detection with a "Lunch Box" check ..
2019-03-04Merge branch 'acpi-apei'Rafael J. Wysocki
* acpi-apei: (29 commits) efi: cper: Fix possible out-of-bounds access ACPI: APEI: Fix possible out-of-bounds access to BERT region MAINTAINERS: Add James Morse to the list of APEI reviewers ACPI / APEI: Add support for the SDEI GHES Notification type firmware: arm_sdei: Add ACPI GHES registration helper ACPI / APEI: Use separate fixmap pages for arm64 NMI-like notifications ACPI / APEI: Only use queued estatus entry during in_nmi_queue_one_entry() ACPI / APEI: Split ghes_read_estatus() to allow a peek at the CPER length ACPI / APEI: Make GHES estatus header validation more user friendly ACPI / APEI: Pass ghes and estatus separately to avoid a later copy ACPI / APEI: Let the notification helper specify the fixmap slot ACPI / APEI: Move locking to the notification helper arm64: KVM/mm: Move SEA handling behind a single 'claim' interface KVM: arm/arm64: Add kvm_ras.h to collect kvm specific RAS plumbing ACPI / APEI: Switch NOTIFY_SEA to use the estatus queue ACPI / APEI: Move NOTIFY_SEA between the estatus-queue and NOTIFY_NMI ACPI / APEI: Don't allow ghes_ack_error() to mask earlier errors ACPI / APEI: Generalise the estatus queue's notify code ACPI / APEI: Don't update struct ghes' flags in read/clear estatus ACPI / APEI: Remove spurious GHES_TO_CLEAR check ...
2019-02-24ACPICA: Update version to 20190215Bob Moore
ACPICA commit e66a8468f83fadb35aebeb534d8ef92622274696 Version 20190215 Link: https://github.com/acpica/acpica/commit/e66a8468 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-24ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formattingErik Schmauss
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-24ACPICA: ACPI 6.3: add GTDT Revision 3 supportErik Schmauss
ACPICA commit 2cd926fdf360062adcaac1349cb94136590c1c74 Link: https://github.com/acpica/acpica/commit/2cd926fd Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-24ACPICA: ACPI 6.3: HMAT updatesErik Schmauss
ACPICA commit a216e8ca9f7c79f90788b193e2e61151b2c973c0 This change reserves several field and renames subtable 0 to "memory proximity domain attributes" Link: https://github.com/acpica/acpica/commit/a216e8ca Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-24ACPICA: ACPI 6.3: PPTT add additional fields in Processor Structure FlagsErik Schmauss
ACPICA commit c736ea34add19a3a07e0e398711847cd6b95affd Link: https://github.com/acpica/acpica/commit/c736ea34 Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-24ACPICA: ACPI 6.3: add Error Disconnect Recover Notification valueErik Schmauss
ACPICA commit 205ac8fc721073f1e609df963b14ef2237aeba73 Link: https://github.com/acpica/acpica/commit/205ac8fc Reviewed-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-24ACPICA: ACPI 6.3: MADT: add support for statistical profiling in GICCErik Schmauss
ACPICA commit 31b184052a986dc8d80c878edeca574d4ffa1cf5 Link: https://github.com/acpica/acpica/commit/31b18405 Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-18ACPI / CPPC: Add a helper to get desired performanceXiongfeng Wang
This patch add a helper to get the value of desired performance register. Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> [ rjw: More white space ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-18ACPICA: ACPI 6.3: SRAT: add Generic Affinity Structure subtableErik Schmauss
ACPICA commit 8c9eba7811a939a387d93d6c2a572d0887e64f2c Link: https://github.com/acpica/acpica/commit/8c9eba78 Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-18ACPICA: ACPI 6.3: Add Trigger order to PCC Identifier structure in PDTTErik Schmauss
ACPICA commit b11446d8b47805c2637a2286aca34b717ec6b5be Link: https://github.com/acpica/acpica/commit/b11446d8 Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-18ACPICA: Remove legacy module-level code supportErik Schmauss
ACPICA commit 47f5607c204719d9239a12b889df725225098c8f Module-level code refers to executable ASL code that runs during table load. This is typically used in ASL to declare named objects based on a condition evaluated during table load like so: definition_block(...) { opreation_region (OPR1, system_memory, ...) Field (OPR1) { FLD1, 8 /* Assume that FLD1's value is 0x1 */ } /* The if statement below is referred to as module-level code */ If (FLD1) { /* Declare DEV1 conditionally */ Device (DEV1) {...} } Device (DEV2) { ... } } In legacy module-level code, the execution of the If statement was deferred after other modules were loaded. The order of code execution for the table above is the following: 1.) Load OPR1 to the ACPI Namespace 2.) Load FLD1 to the ACPI Namespace (not intended for drivers) 3.) Load DEV2 to the ACPI Namespace 4.) Execute If (FLD1) and load DEV1 if the condition is true This legacy approach can be problematic for tables that look like the following: definition_block(...) { opreation_region (OPR1, system_memory, ...) Field (OPR1) { FLD1, 8 /* Assume that FLD1's value is 0x1 */ } /* The if statement below is referred to as module-level code */ If (FLD1) { /* Declare DEV1 conditionally */ Device (DEV1) {...} } Scope (DEV1) { /* Add objects DEV1's scope */ Name (OBJ1, 0x1234) } } When loading this in the legacy approach, Scope DEV1 gets evaluated before the If statement. The following is the order of execution: 1.) Load OPR1 to the ACPI Namespace 2.) Load FLD1 to the ACPI Namespace (not intended for drivers) 3.) Add OBJ1 under DEV1's scope -- ERROR. DEV1 does not exist 4.) Execute If (FLD1) and load DEV1 if the condition is true The legacy approach can never succeed for tables like this due to the deferral of the module-level code. Due to this limitation, a new module-level code was developed. This new approach exeutes if statements in the order that they appear in the definition block. With this approach, the order of execution for the above defintion block is as follows: 1.) Load OPR1 to the ACPI Namespace 2.) Load FLD1 to the ACPI Namespace (not intended for drivers) 3.) Execute If (FLD1) and load DEV1 because the condition is true 4.) Add OBJ1 under DEV1's scope. Since DEV1 is loaded in the namespace in step 3, step 4 executes successfully. This change removes support for the legacy module-level code execution. From this point onward, the new module-level code execution will be the official approach. Link: https://github.com/acpica/acpica/commit/47f5607c Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-07ACPI / APEI: Don't update struct ghes' flags in read/clear estatusJames Morse
ghes_read_estatus() sets a flag in struct ghes if the buffer of CPER records needs to be cleared once the records have been processed. This flag value is a problem if a struct ghes can be processed concurrently, as happens at probe time if an NMI arrives for the same error source. The NMI clears the flag, meaning the interrupted handler may never do the ghes_estatus_clear() work. The GHES_TO_CLEAR flags is only set at the same time as buffer_paddr, which is now owned by the caller and passed to ghes_clear_estatus(). Use this value as the flag. A non-zero buf_paddr returned by ghes_read_estatus() means ghes_clear_estatus() should clear this address. ghes_read_estatus() already checks for a read of error_status_address being zero, so CPER records cannot be written here. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-07ACPI / APEI: Don't store CPER records physical address in struct ghesJames Morse
When CPER records are found the address of the records is stashed in the struct ghes. Once the records have been processed, this address is overwritten with zero so that it won't be processed again without being re-populated by firmware. This goes wrong if a struct ghes can be processed concurrently, as can happen at probe time when an NMI occurs. If the NMI arrives on another CPU, the probing CPU may call ghes_clear_estatus() on the records before the handler had finished with them. Even on the same CPU, once the interrupted handler is resumed, it will call ghes_clear_estatus() on the NMIs records, this memory may have already been re-used by firmware. Avoid this stashing by letting the caller hold the address. A later patch will do away with the use of ghes->flags in the read/clear code too. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-07ACPI / APEI: Make estatus pool allocation a static sizeJames Morse
Adding new NMI-like notifications duplicates the calls that grow and shrink the estatus pool. This is all pretty pointless, as the size is capped to 64K. Allocate this for each ghes and drop the code that grows and shrinks the pool. Suggested-by: Borislav Petkov <bp@suse.de> Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-07ACPI / APEI: Make hest.c manage the estatus memory poolJames Morse
ghes.c has a memory pool it uses for the estatus cache and the estatus queue. The cache is initialised when registering the platform driver. For the queue, an NMI-like notification has to grow/shrink the pool as it is registered and unregistered. This is all pretty noisy when adding new NMI-like notifications, it would be better to replace this with a static pool size based on the number of users. As a precursor, move the call that creates the pool from ghes_init(), into hest.c. Later this will take the number of ghes entries and consolidate the queue allocations. Remove ghes_estatus_pool_exit() as hest.c doesn't have anywhere to put this. The pool is now initialised as part of ACPI's subsys_initcall(): (acpi_init(), acpi_scan_init(), acpi_pci_root_init(), acpi_hest_init()) Before this patch it happened later as a GHES specific device_initcall(). Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 04:34:48 +0000