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* LoongArch: Add SMT (Simultaneous Multi-Threading) supportHuacai Chen2023-06-291-1/+1
| | | | | | | | | | | | | | Loongson-3A6000 has SMT (Simultaneous Multi-Threading) support, each physical core has two logical cores (threads). This patch add SMT probe and scheduler support via ACPI PPTT. If SCHED_SMT enabled, Loongson-3A6000 is treated as 4 cores, 8 threads; If SCHED_SMT disabled, Loongson-3A6000 is treated as 8 cores, 8 threads. Remove smp_num_siblings to support HMP (Heterogeneous Multi-Processing). Signed-off-by: Liupu Wang <wangliupu@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
* Merge tag 'acpi-6.2-rc1' of ↵Linus Torvalds2022-12-121-0/+10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and PNP updates from Rafael Wysocki: "These include new code (for instance, support for the FFH address space type and support for new firmware data structures in ACPICA), some new quirks (mostly related to backlight handling and I2C enumeration), a number of fixes and a fair amount of cleanups all over. Specifics: - Update the ACPICA code in the kernel to the 20221020 upstream version and fix a couple of issues in it: - Make acpi_ex_load_op() match upstream implementation (Rafael Wysocki) - Add support for loong_arch-specific APICs in MADT (Huacai Chen) - Add support for fixed PCIe wake event (Huacai Chen) - Add EBDA pointer sanity checks (Vit Kabele) - Avoid accessing VGA memory when EBDA < 1KiB (Vit Kabele) - Add CCEL table support to both compiler/disassembler (Kuppuswamy Sathyanarayanan) - Add a couple of new UUIDs to the known UUID list (Bob Moore) - Add support for FFH Opregion special context data (Sudeep Holla) - Improve warning message for "invalid ACPI name" (Bob Moore) - Add support for CXL 3.0 structures (CXIMS & RDPAS) in the CEDT table (Alison Schofield) - Prepare IORT support for revision E.e (Robin Murphy) - Finish support for the CDAT table (Bob Moore) - Fix error code path in acpi_ds_call_control_method() (Rafael Wysocki) - Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (Li Zetao) - Update the version of the ACPICA code in the kernel (Bob Moore) - Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device enumeration code (Giulio Benetti) - Change the return type of the ACPI driver remove callback to void and update its users accordingly (Dawei Li) - Add general support for FFH address space type and implement the low- level part of it for ARM64 (Sudeep Holla) - Fix stale comments in the ACPI tables parsing code and make it print more messages related to MADT (Hanjun Guo, Huacai Chen) - Replace invocations of generic library functions with more kernel- specific counterparts in the ACPI sysfs interface (Christophe JAILLET, Xu Panda) - Print full name paths of ACPI power resource objects during enumeration (Kane Chen) - Eliminate a compiler warning regarding a missing function prototype in the ACPI power management code (Sudeep Holla) - Fix and clean up the ACPI processor driver (Rafael Wysocki, Li Zhong, Colin Ian King, Sudeep Holla) - Add quirk for the HP Pavilion Gaming 15-cx0041ur to the ACPI EC driver (Mia Kanashi) - Add some mew ACPI backlight handling quirks and update some existing ones (Hans de Goede) - Make the ACPI backlight driver prefer the native backlight control over vendor backlight control when possible (Hans de Goede) - Drop unsetting ACPI APEI driver data on remove (Uwe Kleine-König) - Use xchg_release() instead of cmpxchg() for updating new GHES cache slots (Ard Biesheuvel) - Clean up the ACPI APEI code (Sudeep Holla, Christophe JAILLET, Jay Lu) - Add new I2C device enumeration quirks for Medion Lifetab S10346 and Lenovo Yoga Tab 3 Pro (YT3-X90F) (Hans de Goede) - Make the ACPI battery driver notify user space about adding new battery hooks and removing the existing ones (Armin Wolf) - Modify the pfr_update and pfr_telemetry drivers to use ACPI_FREE() for freeing acpi_object structures to help diagnostics (Wang ShaoBo) - Make the ACPI fan driver use sysfs_emit_at() in its sysfs interface code (ye xingchen) - Fix the _FIF package extraction failure handling in the ACPI fan driver (Hanjun Guo) - Fix the PCC mailbox handling error code path (Huisong Li) - Avoid using PCC Opregions if there is no platform interrupt allocated for this purpose (Huisong Li) - Use sysfs_emit() instead of scnprintf() in the ACPI PAD driver and CPPC library (ye xingchen) - Fix some kernel-doc issues in the ACPI GSI processing code (Xiongfeng Wang) - Fix name memory leak in pnp_alloc_dev() (Yang Yingliang) - Do not disable PNP devices on suspend when they cannot be re-enabled on resume (Hans de Goede) - Clean up the ACPI thermal driver a bit (Rafael Wysocki)" * tag 'acpi-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (67 commits) ACPI: x86: Add skip i2c clients quirk for Medion Lifetab S10346 ACPI: APEI: EINJ: Refactor available_error_type_show() ACPI: APEI: EINJ: Fix formatting errors ACPI: processor: perflib: Adjust acpi_processor_notify_smm() return value ACPI: processor: perflib: Rearrange acpi_processor_notify_smm() ACPI: processor: perflib: Rearrange unregistration routine ACPI: processor: perflib: Drop redundant parentheses ACPI: processor: perflib: Adjust white space ACPI: processor: idle: Drop unnecessary statements and parens ACPI: thermal: Adjust critical.flags.valid check ACPI: fan: Convert to use sysfs_emit_at() API ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() ACPI: battery: Call power_supply_changed() when adding hooks ACPI: use sysfs_emit() instead of scnprintf() ACPI: x86: Add skip i2c clients quirk for Lenovo Yoga Tab 3 Pro (YT3-X90F) ACPI: APEI: Remove a useless include PNP: Do not disable devices on suspend when they cannot be re-enabled on resume ACPI: processor: Silence missing prototype warnings ACPI: processor_idle: Silence missing prototype warnings ACPI: PM: Silence missing prototype warning ...
| * ACPI: Implement a generic FFH Opregion handlerSudeep Holla2022-11-141-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This registers the FFH OpRegion handler before ACPI tables are loaded. The platform support for the same is checked via Platform-Wide OSPM Capabilities(OSC) before registering the OpRegion handler. It relies on the special context data passed to offset and the length. However the interpretation of the values is platform/architecture specific. This generic handler just passed all the information to the platform/architecture specific callback. It also implements the default callbacks which return as not supported. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | ACPI: Enable FPDT on arm64Jeremy Linton2022-11-141-1/+1
|/ | | | | | | | | | | | FPDT provides some boot timing records useful for analyzing parts of the UEFI boot stack. Given the existing code works on arm64, and allows reading the values without utilizing /dev/mem it seems like a good idea to turn it on. Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20221109174720.203723-1-jeremy.linton@arm.com Signed-off-by: Will Deacon <will@kernel.org>
* Merge tag 'platform-drivers-x86-v6.1-1' of ↵Linus Torvalds2022-10-051-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: - AMD Platform Management Framework (PMF) driver with AMT and QnQF support - AMD PMC: Improved logging for debugging s2idle issues - Big refactor of the ACPI/x86 backlight handling, ensuring that we only register 1 /sys/class/backlight device per LCD panel - Microsoft Surface: - Surface Laptop Go 2 support - Surface Pro 8 HID sensor support - Asus WMI: - Lots of cleanups - Support for TUF RGB keyboard backlight control - Add support for ROG X13 tablet mode - Siemens Simatic: IPC227G and IPC427G support - Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support - tools/power/x86/intel-speed-select: Various improvements - Various cleanups - Various small bugfixes * tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (153 commits) platform/x86: use PLATFORM_DEVID_NONE instead of -1 platform/x86/amd: pmc: Dump idle mask during "check" stage instead platform/x86/intel/wmi: thunderbolt: Use dev_groups callback platform/x86/amd: pmc: remove CONFIG_DEBUG_FS checks platform/surface: Split memcpy() of struct ssam_event flexible array platform/x86: compal-laptop: Get rid of a few forward declarations platform/x86: intel-uncore-freq: Use sysfs_emit() to instead of scnprintf() platform/x86: dell-smbios-base: Use sysfs_emit() platform/x86/amd/pmf: Remove unused power_delta instances platform/x86/amd/pmf: install notify handler after acpi init Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF platform/x86/amd/pmf: Add sysfs to toggle CnQF platform/x86/amd/pmf: Add support for CnQF platform/x86/amd: pmc: Fix build without debugfs platform/x86: hp-wmi: Support touchpad on/off platform/x86: int3472/discrete: Drop a forward declaration platform/x86: toshiba_acpi: change turn_on_panel_on_resume to static platform/x86: wmi: Drop forward declaration of static functions platform/x86: toshiba_acpi: Remove duplicate include platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading ...
| * ACPI: video: Add Nvidia WMI EC brightness control detection (v3)Hans de Goede2022-09-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some new laptop designs a new Nvidia specific WMI interface is present which gives info about panel brightness control and may allow controlling the brightness through this interface when the embedded controller is used for brightness control. When this WMI interface is present and indicates that the EC is used, then this interface should be used for brightness control. Changes in v2: - Use the new shared nvidia-wmi-ec-backlight.h header for the WMI firmware API definitions - ACPI_VIDEO can now be enabled on non X86 too, adjust the Kconfig changes to match this. Changes in v3: - Use WMI_BRIGHTNESS_GUID define Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Daniel Dadap <ddadap@nvidia.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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*-. \ Merge branches 'acpi-misc', 'acpi-tools' and 'acpi-docs'Rafael J. Wysocki2022-10-031-4/+0
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge miscellaneous ACPI material, ACPI tools changes and ACPI documentation updates for 6.1-rc1: - Drop references to non-functional 01.org/linux-acpi web site from MAINTAINERS and Kconfig help texts (Rafael Wysocki). - Replace strlcpy() with unused retval with strscpy() in the ACPI support code (Wolfram Sang). - Do not initialize ret in main() in the pfrut utility (Shi junming). - Drop useless ACPI DSDT override documentation (Rafael Wysocki). - Fix a few typos and wording mistakes in the ACPI device enumeration documentation (Jean Delvare). * acpi-misc: MAINTAINERS: Drop records pointing to 01.org/linux-acpi ACPI: Kconfig: Drop link to https://01.org/linux-acpi ACPI: DPTF: Drop stale link from Kconfig help ACPI: move from strlcpy() with unused retval to strscpy() * acpi-tools: ACPI: tools: pfrut: Do not initialize ret in main() * acpi-docs: ACPI: docs: Drop useless DSDT override documentation ACPI: docs: enumeration: Fix a few typos and wording mistakes
| | * ACPI: docs: Drop useless DSDT override documentationRafael J. Wysocki2022-09-281-1/+0
| |/ |/| | | | | | | | | | | | | | | | | Because https://01.org/linux-acpi web site has become permanently inaccessible, the "Overriding DSDT" document in the kernel tree pointing to it as the main source of information is useless (and the config option name mentioned by it is incorrect), so drop it and drop the pointer to it from the ACPI Kconfig. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * ACPI: Kconfig: Drop link to https://01.org/linux-acpiRafael J. Wysocki2022-09-281-3/+0
|/ | | | | | | Because the https://01.org/linux-acpi web site has become permanently inaccessible, drop the remaining link to it from the ACPI Kconfig. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge tag 'efi-next-for-v5.20' of ↵Linus Torvalds2022-08-031-15/+15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull EFI updates from Ard Biesheuvel: - Enable mirrored memory for arm64 - Fix up several abuses of the efivar API - Refactor the efivar API in preparation for moving the 'business logic' part of it into efivarfs - Enable ACPI PRM on arm64 * tag 'efi-next-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: (24 commits) ACPI: Move PRM config option under the main ACPI config ACPI: Enable Platform Runtime Mechanism(PRM) support on ARM64 ACPI: PRM: Change handler_addr type to void pointer efi: Simplify arch_efi_call_virt() macro drivers: fix typo in firmware/efi/memmap.c efi: vars: Drop __efivar_entry_iter() helper which is no longer used efi: vars: Use locking version to iterate over efivars linked lists efi: pstore: Omit efivars caching EFI varstore access layer efi: vars: Add thin wrapper around EFI get/set variable interface efi: vars: Don't drop lock in the middle of efivar_init() pstore: Add priv field to pstore_record for backend specific use Input: applespi - avoid efivars API and invoke EFI services directly selftests/kexec: remove broken EFI_VARS secure boot fallback check brcmfmac: Switch to appropriate helper to load EFI variable contents iwlwifi: Switch to proper EFI variable store interface media: atomisp_gmin_platform: stop abusing efivar API efi: efibc: avoid efivar API for setting variables efi: avoid efivars layer when loading SSDTs from variables efi: Correct comment on efi_memmap_alloc memblock: Disable mirror feature if kernelcore is not specified ...
| * ACPI: Move PRM config option under the main ACPI configSudeep Holla2022-06-301-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently PRM(Platform Runtime Mechanism) config option is listed along with the main ACPI (Advanced Configuration and Power Interface) option at the same level. On ARM64 platforms unlike x86, ACPI option is listed at the topmost level of configuration menu. It is rather very confusing to see PRM option also listed along with ACPI in the topmost level. Move the same under ACPI config option. No functional change, just changes the level of visibility of this option under the configuration menu. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
| * ACPI: Enable Platform Runtime Mechanism(PRM) support on ARM64Sudeep Holla2022-06-301-1/+1
| | | | | | | | | | | | | | | | | | | | There is interest to make use of PRM(Platform Runtime Mechanism) even on ARM64 ACPI platforms. Allow PRM to be enabled on ARM64 platforms. It will be enabled by default as on x86_64. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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*-. | Merge branches 'acpi-video', 'acpi-pci' and 'acpi-docs'Rafael J. Wysocki2022-07-291-1/+1
|\ \| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge ACPI backlight driver changes, ACPI changes related to PCI and ACPI documentation changes for v5.20-rc1: - Use native backlight on Dell Inspiron N4010 (Hans de Goede). - Use native backlight on some TongFang devices (Werner Sembach). - Drop X86 dependency from the ACPI backlight driver Kconfig (Riwen Lu). - Shorten the quirk list in the ACPI backlight driver by identifying Clevo by board_name only (Werner Sembach). - Remove useless NULL pointer checks from 2 ACPI PCI link management functions (Andrey Strachuk). - Fix obsolete example in the ACPI EINJ documentation (Qifu Zhang). - Update links and references to _DSD-related documents (Sudeep Holla). * acpi-video: ACPI: video: Use native backlight on Dell Inspiron N4010 ACPI: video: Shortening quirk list by identifying Clevo by board_name only ACPI: video: Force backlight native for some TongFang devices ACPI: video: Drop X86 dependency from Kconfig * acpi-pci: ACPI/PCI: Remove useless NULL pointer checks * acpi-docs: Documentation: ACPI: EINJ: Fix obsolete example Documentation: ACPI: Update links and references to DSD related docs
| * | ACPI: video: Drop X86 dependency from KconfigRiwen Lu2022-06-291-1/+1
| |/ | | | | | | | | | | | | | | | | The ACPI video device is also present in ARM64 laptops, so drop the Kconfig dependency on X86 for ACPI_VIDEO. Signed-off-by: Riwen Lu <luriwen@kylinos.cn> [ rjw: Subject rewrite, changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* / ACPI: processor: Split out thermal initialization from ACPI PSSRiwen Lu2022-06-291-1/+1
|/ | | | | | | | | | | | | | | | Commit 239708a3af44 ("ACPI: Split out ACPI PSS from ACPI Processor driver"), moves processor thermal registration to acpi_pss_perf_init(), which doesn't get executed if ACPI_CPU_FREQ_PSS is not enabled. As ARM64 supports P-states using CPPC, it should be possible to also support processor passive cooling even if PSS is not enabled. Split out the processor thermal cooling register from ACPI PSS to support this, and move it into a separate function in processor_thermal.c. Signed-off-by: Riwen Lu <luriwen@kylinos.cn> Reviewed-by: Punit Agrawal <punit.agrawal@bytedance.com> [ rjw: Subject edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI: clean up double words in two commentsTom Rix2022-02-211-1/+1
| | | | | | | | Remove the second 'on' and 'those'. Signed-off-by: Tom Rix <trix@redhat.com> [ rjw: Subject adjustments ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI: require CRC32 to buildRandy Dunlap2022-01-311-0/+1
| | | | | | | | | | | | | | | | | ACPI core now requires crc32() but the kernel build can fail when CRC32 is not set/enabled, so select it in the ACPI Kconfig entry. Fixes this build error: ia64-linux-ld: drivers/acpi/scan.o: in function `acpi_store_pld_crc': include/acpi/platform/aclinuxex.h:62: undefined reference to `crc32_le' Fixes: 882c982dada4 ("acpi: Store CRC-32 hash of the _PLD in struct acpi_device") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge tag 'acpi-5.17-rc1-2' of ↵Linus Torvalds2022-01-181-0/+22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "The most significant item here is the Platform Firmware Runtime Update and Telemetry (PFRUT) support designed to allow certain pieces of the platform firmware to be updated on the fly, among other things. Also important is the e820 handling change on x86 that should work around PCI BAR allocation issues on some systems shipping since 2019. The rest is just a handful of assorted fixes and cleanups on top of the ACPI material merged previously. Specifics: - Add support for the the Platform Firmware Runtime Update and Telemetry (PFRUT) interface based on ACPI to allow certain pieces of the platform firmware to be updated without restarting the system and to provide a mechanism for collecting platform firmware telemetry data (Chen Yu, Dan Carpenter, Yang Yingliang). - Ignore E820 reservations covering PCI host bridge windows on sufficiently recent x86 systems to avoid issues with allocating PCI BARs on systems where the E820 reservations cover the entire PCI host bridge memory window returned by the _CRS object in the system's ACPI tables (Hans de Goede). - Fix and clean up acpi_scan_init() (Rafael Wysocki). - Add more sanity checking to ACPI SPCR tables parsing (Mark Langsdorf). - Fix up ACPI APD (AMD Soc) driver initialization (Jiasheng Jiang). - Drop unnecessary "static" from the ACPI PCC address space handling driver added recently (kernel test robot)" * tag 'acpi-5.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: PCC: pcc_ctx can be static ACPI: scan: Rename label in acpi_scan_init() ACPI: scan: Simplify initialization of power and sleep buttons ACPI: scan: Change acpi_scan_init() return value type to void ACPI: SPCR: check if table->serial_port.access_width is too wide ACPI: APD: Check for NULL pointer after calling devm_ioremap() x86/PCI: Ignore E820 reservations for bridge windows on newer systems ACPI: pfr_telemetry: Fix info leak in pfrt_log_ioctl() ACPI: pfr_update: Fix return value check in pfru_write() ACPI: tools: Introduce utility for firmware updates/telemetry ACPI: Introduce Platform Firmware Runtime Telemetry driver ACPI: Introduce Platform Firmware Runtime Update device driver efi: Introduce EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER and corresponding structures
| * Merge branch 'acpi-pfrut'Rafael J. Wysocki2022-01-171-0/+22
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge support for the Platform Firmware Runtime Update and Telemetry interface based on ACPI. The interface provided here allows updating certain pieces of the platform firmware without restarting the system and collecting platform firmware telemetry data. This also includes a utility for accesing the new interface from user space. * acpi-pfrut: ACPI: pfr_telemetry: Fix info leak in pfrt_log_ioctl() ACPI: pfr_update: Fix return value check in pfru_write() ACPI: tools: Introduce utility for firmware updates/telemetry ACPI: Introduce Platform Firmware Runtime Telemetry driver ACPI: Introduce Platform Firmware Runtime Update device driver efi: Introduce EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER and corresponding structures
| | * ACPI: Introduce Platform Firmware Runtime Telemetry driverChen Yu2021-12-271-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver allows user space to fetch telemetry data from the firmware with the help of the Platform Firmware Runtime Telemetry interface. Both PFRU and PFRT are based on ACPI _DSM interfaces located under special device objects in the ACPI Namespace, but these interfaces are different from each other, so it is better to provide a separate driver from each of them, even though they share some common definitions and naming conventions. Tested-by: Hongyu Ning <hongyu.ning@intel.com> Signed-off-by: Chen Yu <yu.c.chen@intel.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * ACPI: Introduce Platform Firmware Runtime Update device driverChen Yu2021-12-271-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce the pfr_update driver which can be used for Platform Firmware Runtime code injection and driver update [1]. The user is expected to provide the EFI capsule, and pass it to the driver by writing the capsule to a device special file. The capsule is transferred by the driver to the platform firmware with the help of an ACPI _DSM method under the special ACPI Platform Firmware Runtime Update device (INTC1080), and the actual firmware update is carried out by the low-level Management Mode code in the platform firmware. This change allows certain pieces of the platform firmware to be updated on the fly while the system is running (runtime) without the need to restart it, which is key in the cases when the system needs to be available 100% of the time and it cannot afford the downtime related to restarting it, or when the work carried out by the system is particularly important, so it cannot be interrupted, and it is not practical to wait until it is complete. Link: https://uefi.org/sites/default/files/resources/Intel_MM_OS_Interface_Spec_Rev100.pdf # [1] Tested-by: Hongyu Ning <hongyu.ning@intel.com> Signed-off-by: Chen Yu <yu.c.chen@intel.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | Merge tag 'cxl-for-5.17' of ↵Linus Torvalds2022-01-121-0/+3
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull CXL (Compute Express Link) updates from Dan Williams: "The highlight is initial support for CXL memory hotplug. The static NUMA node (ACPI SRAT Physical Address to Proximity Domain) information known to platform firmware is extended to support the potential performance-class / memory-target nodes dynamically created from available CXL memory device capacity. New unit test infrastructure is added for validating health information payloads. Fixes to module reload stress and stack usage from exposure in -next are included. A symbol rename and some other miscellaneous fixups are included as well. Summary: - Rework ACPI sub-table infrastructure to optionally be used outside of __init scenarios and use it for CEDT.CFMWS sub-table parsing. - Add support for extending num_possible_nodes by the potential hotplug CXL memory ranges - Extend tools/testing/cxl with mock memory device health information - Fix a module-reload workqueue race - Fix excessive stack-frame usage - Rename the driver context data structure from "cxl_mem" since that name collides with a proposed driver name - Use EXPORT_SYMBOL_NS_GPL instead of -DDEFAULT_SYMBOL_NAMESPACE at build time" * tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl/core: Remove cxld_const_init in cxl_decoder_alloc() cxl/pmem: Fix module reload vs workqueue state ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT cxl/test: Mock acpi_table_parse_cedt() cxl/acpi: Convert CFMWS parsing to ACPI sub-table helpers ACPI: Add a context argument for table parsing handlers ACPI: Teach ACPI table parsing about the CEDT header format ACPI: Keep sub-table parsing infrastructure available for modules tools/testing/cxl: add mock output for the GET_HEALTH_INFO command cxl/memdev: Remove unused cxlmd field cxl/core: Convert to EXPORT_SYMBOL_NS_GPL cxl/memdev: Change cxl_mem to a more descriptive name cxl/mbox: Remove bad comment cxl/pmem: Fix reference counting for delayed work
| * | ACPI: Keep sub-table parsing infrastructure available for modulesDan Williams2021-11-151-0/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The NFIT driver and now the CXL ACPI driver have both open-coded ACPI table parsing. Before another instance is added arrange for the core ACPI sub-table parsing to be optionally available to drivers via the CONFIG_ACPI_TABLE_LIB symbol. If no drivers select the symbol then the infrastructure reverts back to being tagged __init via the __init_or_acpilib annotation. For now, only tag the core sub-table routines and data that the CEDT parsing in the cxl_acpi driver would want to reuse, a CEDT parsing helper is added in a later change. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Len Brown <lenb@kernel.org> Cc: Alison Schofield <alison.schofield@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/163553709227.2509508.8215196520233473814.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* / ACPI: PCC: Implement OperationRegion handler for the PCC Type 3 subtypeSudeep Holla2022-01-041-0/+17
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PCC OpRegion provides a mechanism to communicate with the platform directly from the AML. PCCT provides the list of PCC channel available in the platform, a subset or all of them can be used in PCC Opregion. This patch registers the PCC OpRegion handler before ACPI tables are loaded. This relies on the special context data passed to identify and set up the PCC channel before the OpRegion handler is executed for the first time. Typical PCC Opregion declaration looks like this: OperationRegion (PFRM, PCC, 2, 0x74) Field (PFRM, ByteAcc, NoLock, Preserve) { SIGN, 32, FLGS, 32, LEN, 32, CMD, 32, DATA, 800 } It contains four named double words followed by 100 bytes of buffer names DATA. ASL can fill out the buffer something like: /* Create global or local buffer */ Name (BUFF, Buffer (0x0C){}) /* Create double word fields over the buffer */ CreateDWordField (BUFF, 0x0, WD0) CreateDWordField (BUFF, 0x04, WD1) CreateDWordField (BUFF, 0x08, WD2) /* Fill the named fields */ WD0 = 0x50434300 SIGN = BUFF WD0 = 1 FLGS = BUFF WD0 = 0x10 LEN = BUFF /* Fill the payload in the DATA buffer */ WD0 = 0 WD1 = 0x08 WD2 = 0 DATA = BUFF /* Write to CMD field to trigger handler */ WD0 = 0x4404 CMD = BUFF This buffer is received by acpi_pcc_opregion_space_handler. This handler will fetch the complete buffer via internal_pcc_buffer. The setup handler will receive the special PCC context data which will contain the PCC channel index which used to set up the channel. The buffer pointer and length is saved in region context which is then used in the handler. (kernel test robot: Build failure with CONFIG_ACPI_DEBUGGER) Link: https://lore.kernel.org/r/202201041539.feAV0l27-lkp@intel.com Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI: Kconfig: Fix a typo in KconfigMasanari Iida2021-09-241-1/+1
| | | | | | | This patch fixes a spelling typo in acpi/Kconfig Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
*-. Merge branches 'acpi-numa', 'acpi-glue', 'acpi-config' and 'acpi-pmic'Rafael J. Wysocki2021-08-301-2/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * acpi-numa: ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA * acpi-glue: driver core: Split device_platform_notify() software nodes: Split software_node_notify() ACPI: glue: Eliminate acpi_platform_notify() ACPI: bus: Rename functions to avoid name collision ACPI: glue: Change return type of two functions to void ACPI: glue: Rearrange acpi_device_notify() * acpi-config: ACPI: configfs: Make get_header() to return error pointer ACPI: configfs: Use sysfs_emit() in "show" functions * acpi-pmic: ACPI / PMIC: XPower: optimize MIPI PMIQ sequence I2C-bus accesses ACPI / PMIC: XPower: optimize I2C-bus accesses
| * | ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMAHuacai Chen2021-07-161-2/+2
| |/ | | | | | | | | | | | | | | | | We are preparing to add new Loongson (based on LoongArch, not MIPS) support. LoongArch use ACPI other than DT as its boot protocol, so add its support for ACPI_PROCESSOR/ACPI_NUMA. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* / ACPI: Kconfig: Fix table override from built-in initrdRobert Richter2021-07-191-1/+1
|/ | | | | | | | | | | | During a rework of initramfs code the INITRAMFS_COMPRESSION config option was removed in commit 65e00e04e5ae. A leftover as a dependency broke the config option ACPI_TABLE_OVERRIDE_VIA_ BUILTIN_INITRD that is used to enable the overriding of ACPI tables from built-in initrd. Fixing the dependency. Fixes: 65e00e04e5ae ("initramfs: refactor the initramfs build rules") Signed-off-by: Robert Richter <rrichter@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge tag 'acpi-5.14-rc1-2' of ↵Linus Torvalds2021-07-071-0/+10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "These include fixes of the recently introduced support for the Platform Runtime Mechanism (PRM) feature, a new backlight quirk, a suspend-to-idle wakeup fix for non-Intel platforms and a fix for the AMBA bus resource list in /proc/iomem. Specifics: - Fix up the recently added Platform Runtime Mechanism (PRM) support by correnting a couple of implementation mistakes in it and adding a Kconfig help text to describe it (Aubrey Li, Rafael Wysocki). - Add backlight quirk for Dell Vostro 3350 (Hans de Goede). - Avoid spurious wakeups from suspend-to-idle on non-Intel platforms by restricting special EC GPE handling to the Intel ones (Mario Limonciello). - Modify the AMBA bus support in ACPI to avoid adding using resource names in /proc/iomem (Liguang Zhang)" * tag 'acpi-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: Do not singal PRM support if not enabled ACPI: Correct \_SB._OSC bit definition for PRM ACPI: Kconfig: Provide help text for the ACPI_PRMT option ACPI: PM: Only mark EC GPE for wakeup on Intel systems ACPI: video: Add quirk for the Dell Vostro 3350 ACPI: AMBA: Fix resource name in /proc/iomem
| * ACPI: Kconfig: Provide help text for the ACPI_PRMT optionRafael J. Wysocki2021-07-011-0/+10
| | | | | | | | | | | | | | | | Add missing help text for CONFIG_ACPI_PRMT. Fixes: cefc7ca46235 ("ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtype") Reported-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | Merge tag 'iommu-updates-v5.14' of ↵Linus Torvalds2021-07-021-0/+3
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu updates from Joerg Roedel: - SMMU Updates from Will Deacon: - SMMUv3: - Support stalling faults for platform devices - Decrease defaults sizes for the event and PRI queues - SMMUv2: - Support for a new '->probe_finalize' hook, needed by Nvidia - Even more Qualcomm compatible strings - Avoid Adreno TTBR1 quirk for DB820C platform - Intel VT-d updates from Lu Baolu: - Convert Intel IOMMU to use sva_lib helpers in iommu core - ftrace and debugfs supports for page fault handling - Support asynchronous nested capabilities - Various misc cleanups - Support for new VIOT ACPI table to make the VirtIO IOMMU available on x86 - Add the amd_iommu=force_enable command line option to enable the IOMMU on platforms where they are known to cause problems - Support for version 2 of the Rockchip IOMMU - Various smaller fixes, cleanups and refactorings * tag 'iommu-updates-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (66 commits) iommu/virtio: Enable x86 support iommu/dma: Pass address limit rather than size to iommu_setup_dma_ops() ACPI: Add driver for the VIOT table ACPI: Move IOMMU setup code out of IORT ACPI: arm64: Move DMA setup operations out of IORT iommu/vt-d: Fix dereference of pointer info before it is null checked iommu: Update "iommu.strict" documentation iommu/arm-smmu: Check smmu->impl pointer before dereferencing iommu/arm-smmu-v3: Remove unnecessary oom message iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails iommu/vt-d: Fix linker error on 32-bit iommu/vt-d: No need to typecast iommu/vt-d: Define counter explicitly as unsigned int iommu/vt-d: Remove unnecessary braces iommu/vt-d: Removed unused iommu_count in dmar domain iommu/vt-d: Use bitfields for DMAR capabilities iommu/vt-d: Use DEVICE_ATTR_RO macro iommu/vt-d: Fix out-bounds-warning in intel/svm.c iommu/vt-d: Add PRQ handling latency sampling ...
| * ACPI: Add driver for the VIOT tableJean-Philippe Brucker2021-06-251-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ACPI Virtual I/O Translation Table describes topology of para-virtual platforms, similarly to vendor tables DMAR, IVRS and IORT. For now it describes the relation between virtio-iommu and the endpoints it manages. Three steps are needed to configure DMA of endpoints: (1) acpi_viot_init(): parse the VIOT table, find or create the fwnode associated to each vIOMMU device. This needs to happen after acpi_scan_init(), because it relies on the struct device and their fwnode to be available. (2) When probing the vIOMMU device, the driver registers its IOMMU ops within the IOMMU subsystem. This step doesn't require any intervention from the VIOT driver. (3) viot_iommu_configure(): before binding the endpoint to a driver, find the associated IOMMU ops. Register them, along with the endpoint ID, into the device's iommu_fwspec. If step (3) happens before step (2), it is deferred until the IOMMU is initialized, then retried. Tested-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/20210618152059.1194210-4-jean-philippe@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
* | ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtypeErik Kaneda2021-06-101-0/+5
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Platform Runtime Mechanism (PRM) is a firmware interface that exposes a set of binary executables that can either be called from the AML interpreter or device drivers by bypassing the AML interpreter. This change implements the AML interpreter path. According to the specification [1], PRM services are listed in an ACPI table called the PRMT. This patch parses module and handler information listed in the PRMT and registers the PlatformRtMechanism OpRegion handler before ACPI tables are loaded. Each service is defined by a 16-byte GUID and called from writing a 26-byte ASL buffer containing the identifier to a FieldUnit object defined inside a PlatformRtMechanism OperationRegion. OperationRegion (PRMR, PlatformRtMechanism, 0, 26) Field (PRMR, BufferAcc, NoLock, Preserve) { PRMF, 208 // Write to this field to invoke the OperationRegion Handler } The 26-byte ASL buffer is defined as the following: Byte Offset Byte Length Description ============================================================= 0 1 PRM OperationRegion handler status 1 8 PRM service status 9 1 PRM command 10 16 PRM handler GUID The ASL caller fills out a 26-byte buffer containing the PRM command and the PRM handler GUID like so: /* Local0 is the PRM data buffer */ Local0 = buffer (26){} /* Create byte fields over the buffer */ CreateByteField (Local0, 0x9, CMD) CreateField (Local0, 0x50, 0x80, GUID) /* Fill in the command and data fields of the data buffer */ CMD = 0 // run command GUID = ToUUID("xxxx-xx-xxx-xxxx") /* * Invoke PRM service with an ID that matches GUID and save the * result. */ Local0 = (\_SB.PRMT.PRMF = Local0) Byte offset 0 - 8 are written by the handler as a status passed back to AML and used by ASL like so: /* Create byte fields over the buffer */ CreateByteField (Local0, 0x0, PSTA) CreateQWordField (Local0, 0x1, USTA) In this ASL code, PSTA contains a status from the OperationRegion and USTA contains a status from the PRM service. The 26-byte buffer is recieved by acpi_platformrt_space_handler. This handler will look at the command value and the handler guid and take the approperiate actions. Command value Action ===================================================================== 0 Run the PRM service indicated by the PRM handler GUID (bytes 10-26) 1 Prevent PRM runtime updates from happening to the service's parent module 2 Allow PRM updates from happening to the service's parent module This patch enables command value 0. Link: https://uefi.org/sites/default/files/resources/Platform%20Runtime%20Mechanism%20-%20with%20legal%20notice.pdf # [1] Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge branch 'acpi-tables'Rafael J. Wysocki2021-02-251-0/+8
|\ | | | | | | | | * acpi-tables: ACPI: tables: introduce support for FPDT table
| * ACPI: tables: introduce support for FPDT tableZhang Rui2021-01-291-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | ACPI Firmware Performance Data Table (FPDT) provides information about firmware performance during system boot, S3 suspend and S3 resume. Have the kernel parse the FPDT table, and expose the firmware performance data to userspace as sysfs attributes under /sys/firmware/acpi/fpdt/. Tested-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | ACPI: platform: Hide ACPI_PLATFORM_PROFILE optionMaximilian Luz2021-02-241-15/+1
| | | | | | | | | | | | | | | | | | | | | | The ACPI_PLATFORM_PROFILE option essentially provides a library and not really an independent module. Thus it seems to be more user-friendly to hide this option and simply make drivers depending on it select it. Suggested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | Merge branches 'acpi-scan', 'acpi-properties' and 'acpi-platform'Rafael J. Wysocki2021-02-151-0/+17
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * acpi-scan: ACPI: scan: Rearrange code related to acpi_get_device_data() ACPI: scan: Adjust white space in acpi_device_add() ACPI: scan: Rearrange memory allocation in acpi_device_add() * acpi-properties: ACPI: property: Satisfy kernel doc validator (part 2) ACPI: property: Satisfy kernel doc validator (part 1) ACPI: property: Make acpi_node_prop_read() static ACPI: property: Remove dead code ACPI: property: Fix fwnode string properties matching * acpi-platform: ACPI: platform-profile: Fix possible deadlock in platform_profile_remove() ACPI: platform-profile: Introduce object pointers to callbacks ACPI: platform-profile: Drop const qualifier for cur_profile ACPI: platform: Add platform profile support Documentation: Add documentation for new platform_profile sysfs attribute
| * ACPI: platform: Add platform profile supportMark Pearson2020-12-301-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the initial implementation of the platform-profile feature. It provides the details discussed and outlined in the sysfs-platform_profile document. Many modern systems have the ability to modify the operating profile to control aspects like fan speed, temperature and power levels. This module provides a common sysfs interface that platform modules can register against to control their individual profile options. Signed-off-by: Mark Pearson <markpearson@lenovo.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> [ rjw: Use full words in enum values names ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | ACPI: Update Kconfig help text for items that are no longer modularPeter Robinson2021-01-071-6/+0
|/ | | | | | | | | | The CONTAINER and HOTPLUG_MEMORY options mention modules but are bool only, so if selected are always built in. Drop the help text about modules. Signed-off-by: Peter Robinson <pbrobinson@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI / PMIC: Move TPS68470 OpRegion driver to drivers/acpi/pmic/Andy Shevchenko2020-09-151-16/+0
| | | | | | | | | | It is revealed now that TPS68470 OpRegion driver has been added in slightly different scope. Let's move it to the drivers/acpi/pmic/ folder for sake of the unification. 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>
* ACPI / PMIC: Split out Kconfig and Makefile specific for ACPI PMICAndy Shevchenko2020-09-151-49/+2
| | | | | | | | | | It's a bit better to maintain and allows to avoid mistakes in the future with PMIC OpRegion drivers, if we split out Kconfig and Makefile for ACPI PMIC to its own folder. 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>
*-. Merge branches 'acpi-mm', 'acpi-tables', 'acpi-apei' and 'acpi-misc'Rafael J. Wysocki2020-08-031-3/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * acpi-mm: ACPI: OSL: Clean up the removal of unused memory mappings ACPI: OSL: Use deferred unmapping in acpi_os_unmap_iomem() ACPI: OSL: Use deferred unmapping in acpi_os_unmap_generic_address() ACPICA: Preserve memory opregion mappings ACPI: OSL: Implement deferred unmapping of ACPI memory * acpi-tables: ACPI: NUMA: Remove the useless 'node >= MAX_NUMNODES' check ACPI: NUMA: Remove the useless sub table pointer check ACPI: tables: Remove the duplicated checks for acpi_parse_entries_array() ACPI: tables: avoid relocations for table signature array * acpi-apei: ACPI: APEI: remove redundant assignment to variable rc * acpi-misc: ACPI: Replace HTTP links with HTTPS ones ACPI: Use valid link to the ACPI specification ACPI: Use fallthrough pseudo-keyword
| | * ACPI: Replace HTTP links with HTTPS onesAlexander A. Klimov2020-07-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Acked-by: Vishal Verma <vishal.l.verma@intel.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * ACPI: Use valid link to the ACPI specificationTiezhu Yang2020-07-271-2/+1
| |/ | | | | | | | | | | | | | | Currently, acpi.info is an invalid link to access ACPI specification, the new valid link is https://uefi.org/specifications. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* / ACPI: procfs: Remove last dirs after being marked deprecated for a decadeThomas Renninger2020-06-221-17/+0
|/ | | | | | | | | | This code is outdated and has been deprecated for a long time, so user space is not expected to rely on it any more on any systems that are up to date by any reasonable measure. Remove it. Signed-off-by: Thomas Renninger <trenn@suse.de> [ rjw: Subject / changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI: Add new tiny-power-button driver to directly signal initJosh Triplett2020-02-131-0/+24
| | | | | | | | | | | | | | | | | Virtual machines often use an ACPI power button event to tell the machine to shut down gracefully. Provide an extremely lightweight "tiny power button" driver to handle this event by signaling init directly, rather than running a separate daemon (such as acpid or systemd-logind) that adds to startup time and VM image complexity. The kernel configuration defines the default signal to send init, and userspace can change this signal via a module parameter. Suggested-by: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI: processor: Make ACPI_PROCESSOR_CSTATE depend on ACPI_PROCESSORRafael J. Wysocki2019-12-271-0/+1
| | | | | | | | | To avoid build errors when CONFIG_ACPI_PROCESSOR_CSTATE is set and CONFIG_ACPI_PROCESSOR is not (that may appear in randconfig builds), make the former depend on the latter. Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI: Fix Kconfig indentationKrzysztof Kozlowski2019-11-291-4/+4
| | | | | | | | | Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge branch 'acpi-mm'Rafael J. Wysocki2019-11-261-8/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * acpi-mm: ACPI: HMAT: use %u instead of %d to print u32 values ACPI: NUMA: HMAT: fix a section mismatch ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device ACPI: NUMA: HMAT: Register HMAT at device_initcall level device-dax: Add a driver for "hmem" devices dax: Fix alloc_dax_region() compile warning lib: Uplevel the pmem "region" ida to a global allocator x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP arm/efi: EFI soft reservation to memblock x86/efi: EFI soft reservation to E820 enumeration efi: Common enable/disable infrastructure for EFI soft reservation x86/efi: Push EFI_MEMMAP check into leaf routines efi: Enumerate EFI_MEMORY_SP ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
| * ACPI: NUMA: Establish a new drivers/acpi/numa/ directoryDan Williams2019-11-071-8/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently hmat.c lives under an "hmat" directory which does not enhance the description of the file. The initial motivation for giving hmat.c its own directory was to delineate it as mm functionality in contrast to ACPI device driver functionality. As ACPI continues to play an increasing role in conveying memory location and performance topology information to the OS take the opportunity to co-locate these NUMA relevant tables in a combined directory. numa.c is renamed to srat.c and moved to drivers/acpi/numa/ along with hmat.c. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-08 21:48:27 +0000