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2019-07-18kbuild: create *.mod with full directory path and remove MODVERDIRMasahiro Yamada
While descending directories, Kbuild produces objects for modules, but do not link final *.ko files; it is done in the modpost. To keep track of modules, Kbuild creates a *.mod file in $(MODVERDIR) for every module it is building. Some post-processing steps read the necessary information from *.mod files. This avoids descending into directories again. This mechanism was introduced in 2003 or so. Later, commit 551559e13af1 ("kbuild: implement modules.order") added modules.order. So, we can simply read it out to know all the modules with directory paths. This is easier than parsing the first line of *.mod files. $(MODVERDIR) has a flat directory structure, that is, *.mod files are named only with base names. This is based on the assumption that the module name is unique across the tree. This assumption is really fragile. Stephen Rothwell reported a race condition caused by a module name conflict: https://lkml.org/lkml/2019/5/13/991 In parallel building, two different threads could write to the same $(MODVERDIR)/*.mod simultaneously. Non-unique module names are the source of all kind of troubles, hence commit 3a48a91901c5 ("kbuild: check uniqueness of module names") introduced a new checker script. However, it is still fragile in the build system point of view because this race happens before scripts/modules-check.sh is invoked. If it happens again, the modpost will emit unclear error messages. To fix this issue completely, create *.mod with full directory path so that two threads never attempt to write to the same file. $(MODVERDIR) is no longer needed. Since modules with directory paths are listed in modules.order, Kbuild is still able to find *.mod files without additional descending. I also killed cmd_secanalysis; scripts/mod/sumversion.c computes MD4 hash for modules with MODULE_VERSION(). When CONFIG_DEBUG_SECTION_MISMATCH=y, it occurs not only in the modpost stage, but also during directory descending, where sumversion.c may parse stale *.mod files. It would emit 'No such file or directory' warning when an object consisting a module is renamed, or when a single-obj module is turned into a multi-obj module or vice versa. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Nicolas Pitre <nico@fluxnic.net>
2019-07-14Merge tag 'platform-drivers-x86-v5.3-1' of ↵Linus Torvalds
git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform driver updates from Andy Shevchenko: "Gathered a bunch of x86 platform driver changes. It's rather big, since includes two big refactors and completely new driver: - ASUS WMI driver got a big refactoring in order to support the TUF Gaming laptops. Besides that, the regression with backlight being permanently off on various EeePC laptops has been fixed. - Accelerometer on HP ProBook 450 G0 shows wrong measurements due to X axis being inverted. This has been fixed. - Intel PMC core driver has been extended to be ACPI enumerated if the DSDT provides device with _HID "INT33A1". This allows to convert the driver to be pure platform and support new hardware purely based on ACPI DSDT. - From now on the Intel Speed Select Technology is supported thru a corresponding driver. This driver provides an access to the features of the ISST, such as Performance Profile, Core Power, Base frequency and Turbo Frequency. - Mellanox platform drivers has been refactored and now extended to support more systems, including new coming ones. - The OLPC XO-1.75 platform is now supported. - CB4063 Beckhoff Automation board is using PMC clocks, provided via pmc_atom driver, for ethernet controllers in a way that they can't be managed by the clock driver. The quirk has been extended to cover this case. - Touchscreen on Chuwi Hi10 Plus tablet has been enabled. Meanwhile the information of Chuwi Hi10 Air has been fixed to cover more models based on the same platform. - Xiaomi notebooks have WMI interface enabled. Thus, the driver to support it has been provided. It required some extension of the generic WMI library, which allows to propagate opaque context to the ->probe() of the individual drivers. This release includes debugfs clean up from Greg KH for several drivers that drop return code check and make debugfs absence or failure non-fatal. Also miscellaneous fixes here and there, mostly for Acer WMI and various Intel drivers" * tag 'platform-drivers-x86-v5.3-1' of git://git.infradead.org/linux-platform-drivers-x86: (74 commits) platform/x86: Fix PCENGINES_APU2 Kconfig warning tools/power/x86/intel-speed-select: Add .gitignore file platform/x86: mlx-platform: Fix error handling in mlxplat_init() platform/x86: intel_pmc_core: Attach using APCI HID "INT33A1" platform/x86: intel_pmc_core: transform Pkg C-state residency from TSC ticks into microseconds platform/x86: asus-wmi: Use dev_get_drvdata() Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces platform/x86: mlx-platform: Add more reset cause attributes platform/x86: mlx-platform: Modify DMI matching order platform/x86: mlx-platform: Add regmap structure for the next generation systems platform/x86: mlx-platform: Change API for i2c-mlxcpld driver activation platform/x86: mlx-platform: Move regmap initialization before all drivers activation MAINTAINERS: Update for Intel Speed Select Technology tools/power/x86: A tool to validate Intel Speed Select commands platform/x86: ISST: Restore state on resume platform/x86: ISST: Add Intel Speed Select PUNIT MSR interface platform/x86: ISST: Add Intel Speed Select mailbox interface via MSRs platform/x86: ISST: Add Intel Speed Select mailbox interface via PCI platform/x86: ISST: Add Intel Speed Select mmio interface platform/x86: ISST: Add IOCTL to Translate Linux logical CPU to PUNIT CPU number ...
2019-07-12tools/power/x86/intel-speed-select: Add .gitignore filePrarit Bhargava
Add a .gitignore file for build include/ and final binary. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: David Arcari <darcari@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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 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 'pm-opp', 'pm-misc', 'pm-avs' and 'pm-tools'Rafael J. Wysocki
* pm-opp: opp: Don't use IS_ERR on invalid supplies opp: Make dev_pm_opp_set_rate() handle freq = 0 to drop performance votes opp: Don't overwrite rounded clk rate opp: Allocate genpd_virt_devs from dev_pm_opp_attach_genpd() opp: Attach genpds to devices from within OPP core * pm-misc: PM / clk: Remove error message on out-of-memory condition drivers: base: power: clock_ops: Use of_clk_get_parent_count() * pm-avs: power: avs: smartreflex: no need to check return value of debugfs_create functions * pm-tools: cpupower : frequency-set -r option misses the last cpu in related cpu list cpupower: correct spelling of interval Add README and update pm-graph and sleepgraph docs Update to pm-graph 5.4 Update to pm-graph 5.3
2019-07-03tools/power/x86: A tool to validate Intel Speed Select commandsSrinivas Pandruvada
The Intel(R) Speed select technologies contains four features. Performance profile:An non architectural mechanism that allows multiple optimized performance profiles per system via static and/or dynamic adjustment of core count, workload, Tjmax, and TDP, etc. aka ISS in the documentation. Base Frequency: Enables users to increase guaranteed base frequency on certain cores (high priority cores) in exchange for lower base frequency on remaining cores (low priority cores). aka PBF in the documenation. Turbo frequency: Enables the ability to set different turbo ratio limits to cores based on priority. aka FACT in the documentation. Core power: An Interface that allows user to define per core/tile priority. There is a multi level help for commands and options. This can be used to check required arguments for each feature and commands for the feature. To start navigating the features start with $sudo intel-speed-select --help For help on a specific feature for example $sudo intel-speed-select perf-profile --help To get help for a command for a feature for example $sudo intel-speed-select perf-profile get-lock-status --help Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Len Brown <len.brown@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
Based on 2 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> 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/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482Thomas Gleixner
Based on 1 normalized pattern(s): this work is licensed under the terms of the gnu gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 48 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081204.624030236@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 466Thomas Gleixner
Based on 1 normalized pattern(s): license__ = gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to add the SPDX identifier to this file. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081202.640009675@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-13Merge back earlier pm-tools material for v5.3.Rafael J. Wysocki
2019-06-13Merge tag 'linux-cpupower-5.2-rc6' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux Pull cpupower utility updates from Shuah Khan: "This cpupower update consists of a fix and a minor spelling correction." * tag 'linux-cpupower-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: cpupower : frequency-set -r option misses the last cpu in related cpu list cpupower: correct spelling of interval
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 335Thomas Gleixner
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 you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 111 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/20190530000436.567572064@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288Thomas Gleixner
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>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285Thomas 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 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 100 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/20190529141900.918357685@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-04cpupower : frequency-set -r option misses the last cpu in related cpu listAbhishek Goel
To set frequency on specific cpus using cpupower, following syntax can be used : cpupower -c #i frequency-set -f #f -r While setting frequency using cpupower frequency-set command, if we use '-r' option, it is expected to set frequency for all cpus related to cpu #i. But it is observed to be missing the last cpu in related cpu list. This patch fixes the problem. Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com> Reviewed-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-06-04cpupower: correct spelling of intervalNick Black
Fix up multiple instances of "intervall" to correct "interval" (all save one Italian instance). Signed-off-by: Nick Black <dankamongmen@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 209Thomas Gleixner
Based on 1 normalized pattern(s): released under gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 15 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Steve Winslow <swinslow@gmail.com> 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/20190528171438.895196075@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167Thomas 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 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 you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 83 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.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/20190527070034.021731668@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166Thomas Gleixner
Based on 1 normalized pattern(s): licensed under the terms of the gnu gpl license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 62 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/20190527070033.929121379@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas 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 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 you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 155Thomas 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 either version 2 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 you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.022316957@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-28ACPI: tools: Exclude tools/* from .gitignore patternsMasahiro Yamada
tools/power/acpi/.gitignore has the following entries: acpidbg acpidump ec They are intended to ignore the following build artifacts: tools/power/acpi/acpidbg tools/power/acpi/acpidump tools/power/acpi/ec However, those .gitignore entries are effective not only for the current directory, but also for any sub-directories. So, from the point of .gitignore grammar, the following check-in directories are also considered to be ignored: tools/power/acpi/tools/acpidbg tools/power/acpi/tools/acpidump tools/power/acpi/tools/ec As the manual gitignore(5) says "Files already tracked by Git are not affected", this is not a problem as far as Git is concerned. However, Git is not the only program that parses .gitignore because .gitignore is useful to distinguish build artifacts from source files. For example, tar(1) supports the --exclude-vcs-ignore option. As of writing, this option does not work perfectly, but it intends to create a tarball excluding files specified by .gitignore. The issue can be prevented by prefixing the pattern with a slash; the leading slash means the specified pattern is relative to the current directory. Do that for the "include" directory too for consistency and extra safety. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [ rjw: Subject & changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-05-27Add README and update pm-graph and sleepgraph docsTodd Brandt
Config/man page/README files: - include README in the pm-graph folder - add more detail to the example config to describe more options - update the sleepgraph man page to document the new arguments Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-05-27Update to pm-graph 5.4Todd Brandt
bootgraph: - dmesg log format has changed, update parser in two places - fix prints in preparation for upgrade to python3 sleepgraph: - fix prints in preparation for upgrade to python3 - add new trace events and kprobes to cover freeze more completely - add new -ftop callgraph trace over suspend_devices_and_enter - add -wifi option to check if a wifi connection is active - add -skipkprobe option to suppress unwanted kprobes in dev mode - add kernel params and sysinfo to the log output - don't crash if /dev/mem is throwing IO errors, ignore FPDT and DMI - fix kprobe length calculation when calls are recursive - add several new kernel issue definitions for USB, ACPI, ATA, etc - enable turbostat output to be read from stdout instead of from file - add BIOS call data to the timeline from acpi_ps_execute_method kprobe Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-05-27Update to pm-graph 5.3Todd Brandt
sleepgraph: - add support for parsing kernel issues from timeline dmesg logs - with -summary, generate a summary-issues.html for kernel issues found - with -summary, generate a summary-devices.html for device callback times - when recreating a timeline, use -o to set the output html filename - capture mcelog data when hardware errors occur and store in log - add -turbostat option to capture power data during freeze Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-05-21treewide: Add SPDX license identifier for more missed filesThomas Gleixner
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>
2019-05-14Merge branch 'x86-mds-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 MDS mitigations from Thomas Gleixner: "Microarchitectural Data Sampling (MDS) is a hardware vulnerability which allows unprivileged speculative access to data which is available in various CPU internal buffers. This new set of misfeatures has the following CVEs assigned: CVE-2018-12126 MSBDS Microarchitectural Store Buffer Data Sampling CVE-2018-12130 MFBDS Microarchitectural Fill Buffer Data Sampling CVE-2018-12127 MLPDS Microarchitectural Load Port Data Sampling CVE-2019-11091 MDSUM Microarchitectural Data Sampling Uncacheable Memory MDS attacks target microarchitectural buffers which speculatively forward data under certain conditions. Disclosure gadgets can expose this data via cache side channels. Contrary to other speculation based vulnerabilities the MDS vulnerability does not allow the attacker to control the memory target address. As a consequence the attacks are purely sampling based, but as demonstrated with the TLBleed attack samples can be postprocessed successfully. The mitigation is to flush the microarchitectural buffers on return to user space and before entering a VM. It's bolted on the VERW instruction and requires a microcode update. As some of the attacks exploit data structures shared between hyperthreads, full protection requires to disable hyperthreading. The kernel does not do that by default to avoid breaking unattended updates. The mitigation set comes with documentation for administrators and a deeper technical view" * 'x86-mds-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) x86/speculation/mds: Fix documentation typo Documentation: Correct the possible MDS sysfs values x86/mds: Add MDSUM variant to the MDS documentation x86/speculation/mds: Add 'mitigations=' support for MDS x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off x86/speculation/mds: Fix comment x86/speculation/mds: Add SMT warning message x86/speculation: Move arch_smt_update() call to after mitigation decisions x86/speculation/mds: Add mds=full,nosmt cmdline option Documentation: Add MDS vulnerability documentation Documentation: Move L1TF to separate directory x86/speculation/mds: Add mitigation mode VMWERV x86/speculation/mds: Add sysfs reporting for MDS x86/speculation/mds: Add mitigation control for MDS x86/speculation/mds: Conditionally clear CPU buffers on idle entry x86/kvm/vmx: Add MDS protection when L1D Flush is not active x86/speculation/mds: Clear CPU buffers on exit to user x86/speculation/mds: Add mds_clear_cpu_buffers() x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests x86/speculation/mds: Add BUG_MSBDS_ONLY ...
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>
2019-03-30Merge branch 'turbostat' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat utility updates for 5.1 from Len Brown: "Misc fixes and updates." * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: update version number tools/power turbostat: Warn on bad ACPI LPIT data tools/power turbostat: Add checks for failure of fgets() and fscanf() tools/power turbostat: Also read package power on AMD F17h (Zen) tools/power turbostat: Add support for AMD Fam 17h (Zen) RAPL tools/power turbostat: Do not display an error on systems without a cpufreq driver tools/power turbostat: Add Die column tools/power turbostat: Add Icelake support tools/power turbostat: Cleanup CNL-specific code tools/power turbostat: Cleanup CC3-skip code tools/power turbostat: Restore ability to execute in topology-order
2019-03-20tools/power turbostat: update version numberLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Warn on bad ACPI LPIT dataPrarit Bhargava
On some systems /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us or /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us return a file error because of bad ACPI LPIT data from a misconfigured BIOS. turbostat interprets this failure as a fatal error and outputs turbostat: CPU LPI: No data available If the ACPI LPIT sysfs files return an error output a warning instead of a fatal error, disable the ACPI LPIT evaluation code, and continue. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Add checks for failure of fgets() and fscanf()Ben Hutchings
Most calls to fgets() and fscanf() are followed by error checks. Add an exit-on-error in the remaining cases. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Also read package power on AMD F17h (Zen)Calvin Walton
The package power can also be read from an MSR. It's not clear exactly what is included, and whether it's aggregated over all nodes or reported separately. It does look like this is reported separately per CCX (I get a single value on the Ryzen R7 1700), but it might be reported separately per- die (node?) on larger processors. If that's the case, it would have to be recorded per node and aggregated for the socket. Note that although Zen has these MSRs reporting power, it looks like the actual RAPL configuration (power limits, configured TDP) is done through PCI configuration space. I have not yet found any public documentation for this. Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca> Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Add support for AMD Fam 17h (Zen) RAPLCalvin Walton
Based on the Open-Source Register Reference for AMD Family 17h Processors Models 00h-2Fh: https://support.amd.com/TechDocs/56255_OSRR.pdf These processors report RAPL support in bit 14 of CPUID 0x80000007 EDX, and the following MSRs are present: 0xc0010299 (RAPL_PWR_UNIT), like Intel's RAPL_POWER_UNIT 0xc001029a (CORE_ENERGY_STAT), kind of like Intel's PP0_ENERGY_STATUS 0xc001029b (PKG_ENERGY_STAT), like Intel's PKG_ENERGY_STATUS A notable difference from the Intel implementation is that AMD reports the "Cores" energy usage separately for each core, rather than a per-package total. The code has been adjusted to handle either case in a generic way. I haven't yet enabled collection of package power, due to being unable to test it on multi-node systems (TR, EPYC). Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca> Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Do not display an error on systems without a cpufreq ↵Prarit Bhargava
driver Running without a cpufreq driver is a valid case so warnings output in this case should not be to stderr. Use outf instead of stderr for these warnings. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Add Die columnLen Brown
If the system has more than one software visible die per package, print a Die column. Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Add Icelake supportLen Brown
From a turbostat point of view, Iceland is like Cannonlake. Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Cleanup CNL-specific codeLen Brown
no functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Cleanup CC3-skip codeLen Brown
no functional change Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-20tools/power turbostat: Restore ability to execute in topology-orderLen Brown
turbostat executes on CPUs in "topology order". This is an optimization for measuring profoundly idle systems -- as the closest hardware is woken next... Fix a typo that was added with the sub-die-node support, that broke topology ordering on multi-node systems. Signed-off-by: Len Brown <len.brown@intel.com>
2019-03-19tools/power turbostat: return the exit status of a commandDavid Arcari
turbostat failed to return a non-zero exit status even though the supplied command (turbostat <command>) failed. Currently when turbostat forks a command it returns zero instead of the actual exit status of the command. Modify the code to return the exit status. Signed-off-by: David Arcari <darcari@redhat.com> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-03-14Merge tag 'pm-5.1-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These are mostly fixes and cleanups on top of the previously merged power management material for 5.1-rc1 with one cpupower utility update that wasn't pushed earlier due to unfortunate timing. Specifics: - Fix registration of new cpuidle governors partially broken during the 5.0 development cycle by mistake (Rafael Wysocki). - Avoid integer overflows in the menu cpuidle governor by making it discard the overflowing data points upfront (Rafael Wysocki). - Fix minor mistake in the recent update of the iowait boost computation in the intel_pstate driver (Rafael Wysocki). - Drop incorrect __init annotation from one function in the pxa2xx cpufreq driver (Arnd Bergmann). - Fix the operating performance points (OPP) framework initialization for devices in multiple power domains if only one of them is scalable (Rajendra Nayak). - Fix mistake in dev_pm_opp_set_rate() which causes it to skip updating the performance state if the new frequency is the same as the old one (Viresh Kumar). - Rework the cancellation of wakeup source timers to avoid potential issues with it and do some cleanups unlocked by that change (Viresh Kumar, Rafael Wysocki). - Clean up the code computing the active/suspended time of devices in the PM-runtime framework after recent changes (Ulf Hansson). - Make the power management infrastructure code use pr_fmt() consistently (Joe Perches). - Clean up the generic power domains (genpd) framework somewhat (Aisheng Dong). - Improve kerneldoc comments for two functions in the cpufreq core (Rafael Wysocki). - Fix typo in a PM QoS file description comment (Aisheng Dong). - Update the handling of CPU boost frequencies in the cpupower utility (Abhishek Goel)" * tag 'pm-5.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpuidle: governor: Add new governors to cpuidle_governors again cpufreq: intel_pstate: Fix up iowait_boost computation PM / OPP: Update performance state when freq == old_freq PM / wakeup: Drop wakeup_source_drop() PM / wakeup: Rework wakeup source timer cancellation PM / domains: Remove one unnecessary blank line PM / Domains: Return early for all errors in _genpd_power_off() PM / Domains: Improve warn for multiple states but no governor OPP: Fix handling of multiple power domains PM / QoS: Fix typo in file description cpufreq: pxa2xx: remove incorrect __init annotation PM-runtime: Call pm_runtime_active|suspended_time() from sysfs PM-runtime: Consolidate code to get active/suspended time PM: Add and use pr_fmt() cpufreq: Improve kerneldoc comments for cpufreq_cpu_get/put() cpuidle: menu: Avoid overflows when computing variance tools/power/cpupower: Display boost frequency separately
2019-03-06x86/msr-index: Cleanup bit definesThomas Gleixner
Greg pointed out that speculation related bit defines are using (1 << N) format instead of BIT(N). Aside of that (1 << N) is wrong as it should use 1UL at least. Clean it up. [ Josh Poimboeuf: Fix tools build ] Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Borislav Petkov <bp@suse.de> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Reviewed-by: Jon Masters <jcm@redhat.com> Tested-by: Jon Masters <jcm@redhat.com>
2019-02-13tools/power/cpupower: Display boost frequency separatelyAbhishek Goel
cpufreq driver creates sysfs file "scaling_boost_frequency" for platforms which support boost frequency. Cpupower now prints boost frequencies separately. For few x86 vendors who already have different way to get boost frequency, will continue to use the existing logic. Rest of the platforms will rely on "scaling_boost_frequency" file to display boost frequency. Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com> Signed-off-by: Shuah Khan <shuah@kernel.org>
2019-01-15ACPICA: All acpica: Update copyrights to 2019Bob Moore
ACPICA commit 62f4f98e941d86e41969bf2ab5a93b8dc94dc49e The update includes userspace tool signons. Link: https://github.com/acpica/acpica/commit/62f4f98e 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>
2019-01-03Merge tag 'perf-core-for-mingo-4.21-20190103' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: perf c2c: Jiri Olsa: - Change the default coalesce setup to from '--coalesce pid,iaddr' to just '--coalesce iaddr'. - Increase the HITM ratio limit for displayed cachelines. perf script: Andi Kleen: - Fix LBR skid dump problems in brstackinsn. perf trace: Arnaldo Carvalho de Melo: - Check if the raw_syscalls:sys_{enter,exit} are setup before setting tp filter. - Do not hardcode the size of the tracepoint common_ fields. - Beautify USBDEFFS_ ioctl commands. Colin Ian King: - Use correct SECCOMP prefix spelling, "SECOMP_*" -> "SECCOMP_*". perf python: Jiri Olsa: - Do not force closing original perf descriptor in evlist.get_pollfd(). tools misc: Jiri Olsa: - Allow overriding CFLAGS and LDFLAGS. perf build: Stanislav Fomichev: - Don't unconditionally link the libbfd feature test to -liberty and -lz thread-stack: Adrian Hunter: - Fix processing for the idle task, having a stack per cpu. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>