- 09 Nov, 2020 7 commits
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Shyam Sundar S K authored
AMD Power Management Controller driver a.k.a. amd-pmc driver is the controller which is meant for the final S2Idle transaction that goes to the PMFW running on the AMD SMU (System Management Unit) responsible for tuning of the VDD. Once all the monitored list or the idle constraints are met, this driver would go and set the OS_HINT (meaning all the devices have reached to their lowest state possible) via the SMU mailboxes. This driver would also provide some debug capabilities via debugfs. Signed-off-by:
Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20201105140531.2955555-1-Shyam-sundar.S-k@amd.comSigned-off-by:
Hans de Goede <hdegoede@redhat.com>
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Hans de Goede authored
The Thinkpad Yoga 11e 4th gen with the N3450 / Celeron CPU only has one battery which is named BAT1 instead of the expected BAT0, add a quirk for this. This fixes not being able to set the charging tresholds on this model; and this alsoe fixes the following errors in dmesg: ACPI: \_SB_.PCI0.LPCB.EC__.HKEY: BCTG evaluated but flagged as error thinkpad_acpi: Error probing battery 2 battery: extension failed to load: ThinkPad Battery Extension battery: extension unregistered: ThinkPad Battery Extension Note that the added quirk is for the "R0K" BIOS versions which are used on the Thinkpad Yoga 11e 4th gen's with a Celeron CPU, there is a separate "R0L" BIOS for the i3/i5 based versions. This may also need the same quirk, but if that really is necessary is unknown. Signed-off-by:
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Hans de Goede authored
The Yoga 11e series has 2 accelerometers described by a BOSC0200 ACPI node. This setup relies on a Windows service which reads both accelerometers and then calculates the angle between the 2 halves to determine laptop / tent / tablet mode and then reports the calculated mode back to the EC by calling special ACPI methods on the BOSC0200 node. The bmc150 iio driver does not support this (it involves double calculations requiring sqrt and arccos so this really needs to be done in userspace), as a result of this on the Yoga 11e the thinkpad_acpi code always reports SW_TABLET_MODE=0, starting with GNOME 3.38 reporting SW_TABLET_MODE=0 causes GNOME to: 1. Not show the onscreen keyboard when a text-input field is focussed with the touchscreen. 2. Disable accelerometer based auto display-rotation. This makes sense when in laptop-mode but not when in tablet-mode. But since for the Yoga 11e the thinkpad_acpi code always reports SW_TABLET_MODE=0, GNOME does not know when the device is in tablet-mode. Stop reporting the broken (always 0) SW_TABLET_MODE on Yoga 11e models to fix this. Note there are plans for userspace to support 360 degree hinges style 2-in-1s with 2 accelerometers and figure out the mode by itself, see: https://gitlab.freedesktop.org/hadess/iio-sensor-proxy/-/issues/216Signed-off-by:
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Iakov 'Jake' Kirilenko authored
Tested on my P1 gen3, works fine with `thinkfan`. Since thinkpad_acpi fan control is off by default, it is safe to add 2nd fan control for brave overclockers Signed-off-by:
Iakov 'Jake' Kirilenko <jake.kirilenko@gmail.com> Link: https://lore.kernel.org/r/20201105152556.34073-1-jake.kirilenko@gmail.comSigned-off-by:
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Dan Carpenter authored
Calling release_attributes_data() while holding the "wmi_priv.mutex" will lead to a dead lock. The other problem is that if kzalloc() fails then this should return -ENOMEM but currently it returns success. Fixes: e8a60aa7 ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20201103101735.GB1127762@mwandaSigned-off-by:
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Maximilian Luz authored
Conventionally, wake-up events for a specific device, in our case the lid device, are managed via the ACPI _PRW field. While this does not seem strictly necessary based on ACPI spec, the kernel disables GPE wakeups to avoid non-wakeup interrupts preventing suspend by default and only enables GPEs associated via the _PRW field with a wake-up capable device. This behavior has been introduced in commit f941d3e4 ("ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle") and is described in more detail in its commit message. Unfortunately, on MS Surface devices, there is no _PRW field present on the lid device, thus no GPE is associated with it, and therefore the GPE responsible for sending the status-change notification to the lid gets disabled during suspend, making it impossible to wake the device via the lid. This patch introduces a pseudo-device and respective driver which, based on some DMI matching, marks the corresponding GPE of the lid device for wake and enables it during suspend. The behavior of this driver models the behavior of the ACPI/PM core for normal wakeup GPEs, properly declared via the _PRW field. Signed-off-by:
Maximilian Luz <luzmaximilian@gmail.com> Link: https://lore.kernel.org/r/20201028105427.1593764-1-luzmaximilian@gmail.comSigned-off-by:
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Hans de Goede authored
Immutable branch between MFD and x86 due for the v5.11 merge window
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- 04 Nov, 2020 5 commits
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Alexander Duyck authored
Add support for the Intel Platform Monitoring Technology crashlog interface. This interface provides a few sysfs values to allow for controlling the crashlog telemetry interface as well as a character driver to allow for mapping the crashlog memory region so that it can be accessed after a crashlog has been recorded. This driver is meant to only support the server version of the crashlog which is identified as crash_type 1 with a version of zero. Currently no other types are supported. Signed-off-by:
Alexander Duyck <alexander.h.duyck@linux.intel.com> Signed-off-by:
David E. Box <david.e.box@linux.intel.com> Reviewed-by:
Lee Jones <lee.jones@linaro.org>
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Alexander Duyck authored
PMT Telemetry is a capability of the Intel Platform Monitoring Technology. The Telemetry capability provides access to device telemetry metrics that provide hardware performance data to users from read-only register spaces. With this driver present the intel_pmt directory can be populated with telem<x> devices. These devices will contain the standard intel_pmt sysfs data and a "telem" binary sysfs attribute which can be used to access the telemetry data. Also create a PCI device id list for early telemetry hardware that require workarounds for known issues. Signed-off-by:
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Alexander Duyck authored
Intel Platform Monitoring Technology is meant to provide a common way to access telemetry and system metrics. Register mappings are not provided by the driver. Instead, a GUID is read from a header for each endpoint. The GUID identifies the device and is to be used with an XML, provided by the vendor, to discover the available set of metrics and their register mapping. This allows firmware updates to modify the register space without needing to update the driver every time with new mappings. Firmware writes a new GUID in this case to specify the new mapping. Software tools with access to the associated XML file can then interpret the changes. The module manages access to all Intel PMT endpoints on a system, independent of the device exporting them. It creates an intel_pmt class to manage the devices. For each telemetry endpoint, sysfs files provide GUID and size information as well as a pointer to the parent device the telemetry came from. Software may discover the association between endpoints and devices by iterating through the list in sysfs, or by looking for the existence of the class folder under the device of interest. A binary sysfs attribute of the same name allows software to then read or map the telemetry space for direct access. Signed-off-by:
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David E. Box authored
Intel Platform Monitoring Technology (PMT) is an architecture for enumerating and accessing hardware monitoring facilities. PMT supports multiple types of monitoring capabilities. This driver creates platform devices for each type so that they may be managed by capability specific drivers (to be introduced). Capabilities are discovered using PCIe DVSEC ids. Support is included for the 3 current capability types, Telemetry, Watcher, and Crashlog. The features are available on new Intel platforms starting from Tiger Lake for which support is added. This patch adds support for Tiger Lake (TGL), Alder Lake (ADL), and Out-of-Band Management Services Module (OOBMSM). Also add a quirk mechanism for several early hardware differences and bugs. For Tiger Lake and Alder Lake, do not support Watcher and Crashlog capabilities since they will not be compatible with future product. Also, fix use a quirk to fix the discovery table offset. Co-developed-by:
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David E. Box authored
Add PCIe Designated Vendor-Specific Extended Capability (DVSEC) and defines for the header offsets. Defined in PCIe r5.0, sec 7.9.6. Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
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- 03 Nov, 2020 4 commits
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Zou Wei authored
Fix the following sparse warnings: ./passobj-attributes.c:38:23: warning: symbol 'po_is_pass_set' was not declared. Should it be static? ./passobj-attributes.c:70:23: warning: symbol 'po_current_password' was not declared. Should it be static? ./passobj-attributes.c:99:23: warning: symbol 'po_new_password' was not declared. Should it be static? ./passobj-attributes.c:103:23: warning: symbol 'po_min_pass_length' was not declared. Should it be static? ./passobj-attributes.c:107:23: warning: symbol 'po_max_pass_length' was not declared. Should it be static? ./passobj-attributes.c:116:23: warning: symbol 'po_mechanism' was not declared. Should it be static? ./passobj-attributes.c:129:23: warning: symbol 'po_role' was not declared. Should it be static? Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Zou Wei <zou_wei@huawei.com> Link: https://lore.kernel.org/r/1604107922-14950-1-git-send-email-zou_wei@huawei.comSigned-off-by:
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Zou Wei authored
Fix the following sparse warning: drivers/platform/x86/dell-wmi-sysman/sysman.c:258:24: warning: symbol 'wmi_sysman_kobj_sysfs_ops' was not declared. Should it be static? wmi_sysman_kobj_sysfs_ops has only call within sysman.c It should be static Reported-by:
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Lukas Bulwahn authored
Commit e8a60aa7 ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems") added a new section DELL WMI SYSMAN DRIVERS in MAINTAINERS, but slipped in a typo. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains: warning: no file matches F: drivers/platform/x86/dell-wmi-syman/* Point the file entry to the right location and add an entry for its Documentation while at it. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Acked-by:
Divya Bharathi <divya.bharathi@dell.com> Link: https://lore.kernel.org/r/20201029114425.22520-1-lukas.bulwahn@gmail.comSigned-off-by:
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Mauro Carvalho Chehab authored
The Description: tag is missing on some places, causing scripts/get_abi.pl warnings: Warning: file Documentation/ABI/testing/sysfs-class-firmware-attributes#172: What '/sys/class/firmware-attributes/*/authentication/' doesn't have a description Also, some warnings are produced when generating html documentation: .../Documentation/ABI/testing/sysfs-class-firmware-attributes:2: WARNING: Title underline too short. Dell specific class extensions -------------------------- .../Documentation/ABI/testing/sysfs-class-firmware-attributes:2: WARNING: Unexpected indentation. .../Documentation/ABI/testing/sysfs-class-firmware-attributes:2: WARNING: Unexpected indentation. .../Documentation/ABI/testing/sysfs-class-firmware-attributes:2: WARNING: Block quote ends without a blank line; unexpected unindent. .../Documentation/ABI/testing/sysfs-class-firmware-attributes:173: WARNING: Unexpected indentation. .../Documentation/ABI/testing/sysfs-class-firmware-attributes:173: WARNING: Unexpected indentation. .../Documentation/ABI/testing/sysfs-class-firmware-attributes:173: WARNING: Block quote ends without a blank line; unexpected unindent. .../Documentation/ABI/testing/sysfs-class-firmware-attributes:111: WARNING: Inline emphasis start-string without end-string. Address the warnings, making it to produce the expected output for the documentation ABI. Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/44b4181b4f772fcc5ec676e72b295c10df35121b.1603963862.git.mchehab+huawei@kernel.orgSigned-off-by:
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- 28 Oct, 2020 11 commits
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Hans de Goede authored
Add support for SW_TABLET_MODE on the Acer Switch 10 (SW5-012) and the acer Switch 10 (S1003) models. There is no way to detect if this is supported, so this uses DMI based quirks setting force_caps to ACER_CAP_KBD_DOCK (these devices have no other acer-wmi based functionality). The new SW_TABLET_MODE functionality can be tested on devices which are not in the DMI table by passing acer_wmi.force_caps=0x40 on the kernel commandline. Reviewed-by:
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Hans de Goede authored
Not all devices supporting WMID_GUID3 support the wmid3_set_function_mode() call, leading to errors like these: [ 60.138358] acer_wmi: Enabling RF Button failed: 0x1 - 0xff [ 60.140036] acer_wmi: Enabling Launch Manager failed: 0x1 - 0xff Add an ACER_CAP_SET_FUNCTION_MODE capability flag, so that these calls can be disabled through the new force_caps mechanism. Reviewed-by:
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Hans de Goede authored
Add a new force_caps module parameter to allow overriding the drivers builtin capability detection mechanism. This can be used to for example: -Disable rfkill functionality on devices where there is an AA OEM DMI record advertising non functional rfkill switches -Force loading of the driver on devices with a missing AA OEM DMI record Note that force_caps is -1 when unset, this allows forcing the capability field to 0, which results in acer-wmi only providing WMI hotkey handling while disabling all other (led, rfkill, backlight) functionality. Reviewed-by:
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Hans de Goede authored
Cleanup accelerometer device handling: -Drop acer_wmi_accel_destroy instead directly call input_unregister_device. -The information tracked by the CAP_ACCEL flag mirrors acer_wmi_accel_dev being NULL. Drop the CAP flag, this is a preparation change for allowing users to override the capability flags. Dropping the flag stops users from causing a NULL pointer dereference by forcing the capability. Reviewed-by:
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Hans de Goede authored
Cleanup the ACER_CAP_FOO defines: -Switch to using BIT() macro. -The ACER_CAP_RFBTN flag is set, but it is never checked anywhere, drop it. -Drop the unused ACER_CAP_ANY define. Reviewed-by:
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Hans de Goede authored
set_quirks has a "if (!interface) return;" check at its beginning and interface always is NULL when set_quirks is called from find_quirks, so it is a no-op and we can drop it. This also allows dropping the "if (!interface) return;" from set_quirks since set_quirks now always is called with interface != NULL. Reviewed-by:
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Samuel Čavoj authored
The UX360CA has a WMI device id 0x00060062, which reports whether the lid is flipped in tablet mode (1) or in normal laptop mode (0). Add a quirk (quirk_asus_use_lid_flip_devid) for devices on which this WMI device should be used to figure out the SW_TABLET_MODE state, as opposed to the quirk_asus_use_kbd_dock_devid. Additionally, the device needs to be queried on resume and restore because the firmware does not generate an event if the laptop is put to sleep while in tablet mode, flipped to normal mode, and later awoken. It is assumed other UX360* models have the same WMI device. As such, the quirk is applied to devices with DMI_MATCH(DMI_PRODUCT_NAME, "UX360"). More devices with this feature need to be tested and added accordingly. The reason for using an allowlist via the quirk mechanism is that the new WMI device (0x00060062) is also present on some models which do not have a 360 degree hinge (at least FX503VD and GL503VD from Hans' DSTS collection) and therefore its presence cannot be relied on. Signed-off-by:
Samuel Čavoj <samuel@cavoj.net> Cc: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20201020220944.1075530-1-samuel@cavoj.netReviewed-by:
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Tom Rix authored
A break is not needed if it is preceded by a return Signed-off-by:
Tom Rix <trix@redhat.com> Link: https://lore.kernel.org/r/20201019133212.12671-1-trix@redhat.comSigned-off-by:
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Hans de Goede authored
Add touchscreen info for the Predia Basic tablet. Signed-off-by:
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Shravan Kumar Ramani authored
The performance modules in BlueField are present in several hardware blocks and each block provides access to these stats either through counters that can be programmed to monitor supported events or through memory-mapped registers that hold the relevant information. The hardware blocks that include a performance module are: * Tile (block containing 2 cores and a shared L2 cache) * TRIO (PCIe root complex) * MSS (Memory Sub-system containing the Memory Controller and L3 cache) * GIC (Interrupt controller) * SMMU (System Memory Management Unit) The mlx_pmc driver provides access to all of these performance modules through a hwmon sysfs interface. v2 --> v3 Update copyright info. v1 --> v2 Remove unused headers. Add comma to arrays where last line is not a termination. Use kstrtoint in place of sscanf. UUID manipulation follows drivers/platform/mellanox/mlxbf-bootctl.c Signed-off-by:
Shravan Kumar Ramani <shravankr@nvidia.com> Reviewed-by:
Vadim Pasternak <vadimp@nvidia.com> Reviewed-by:
Jiri Pirko <jiri@nvidia.com> Link: https://lore.kernel.org/r/4e19a1e5bf4197ad27fc57981fd280eaebd23577.1602160468.git.shravankr@nvidia.comSigned-off-by:
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Divya Bharathi authored
The Dell WMI Systems Management Driver provides a sysfs interface for systems management to enable BIOS configuration capability on certain Dell Systems. This driver allows user to configure Dell systems with a uniform common interface. To facilitate this, the patch introduces a generic way for driver to be able to create configurable BIOS Attributes available in Setup (F2) screen. Cc: Hans de Goede <hdegoede@redhat.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: mark gross <mgross@linux.intel.com> Co-developed-by:
Mario Limonciello <mario.limonciello@dell.com> Signed-off-by:
Prasanth KSR <prasanth.ksr@dell.com> Signed-off-by:
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- 27 Oct, 2020 6 commits
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Yongxin Liu authored
This reverts commit 7b11e898. Consider the following hardware setting. |-PNP0C14:00 | |-- device #1 |-PNP0C14:01 | |-- device #2 When unloading wmi driver module, device #2 will be first unregistered. But device_destroy() using MKDEV(0, 0) will locate PNP0C14:00 first and unregister it. This is incorrect. Should use device_unregister() to unregister the real parent device. Signed-off-by:
Yongxin Liu <yongxin.liu@windriver.com> Link: https://lore.kernel.org/r/20191115052710.46880-1-yongxin.liu@windriver.comSigned-off-by:
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Maximilian Luz authored
Move the Surface Pro 3 Button driver from platform/x86 to the newly created platform/surface directory. Signed-off-by:
Chen Yu <yu.c.chen@intel.com> Link: https://lore.kernel.org/r/20201009141128.683254-6-luzmaximilian@gmail.comSigned-off-by:
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Maximilian Luz authored
Move the Surface 3 Power operation region driver from platform/x86 to the newly created platform/surface directory. Signed-off-by:
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Maximilian Luz authored
Move the Surface 3 Button driver from platform/x86 to the newly created platform/surface directory. Signed-off-by:
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Maximilian Luz authored
Move the Surface 3 WMI driver from platform/x86 to the newly created platform/surface directory. Signed-off-by:
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Maximilian Luz authored
It may make sense to split the Microsoft Surface hardware platform drivers out to a separate subdirectory, since some of it may be shared between ARM and x86 in the future (regarding devices like the Surface Pro X). Further, newer Surface devices will require additional platform drivers for fundamental support (mostly regarding their embedded controller), which may also warrant this split from a size perspective. This commit introduces a new platform/surface subdirectory for the Surface device family, with subsequent commits moving existing Surface drivers over from platform/x86. A new MAINTAINERS entry is added for this directory. Patches to files in this directory will be taken up by the platform-drivers-x86 team (i.e. Hans de Goede and Mark Gross) after they have been reviewed by Maximilian Luz. Signed-off-by:
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- 25 Oct, 2020 7 commits
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Linus Torvalds authored
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Joe Perches authored
Use a more generic form for __section that requires quotes to avoid complications with clang and gcc differences. Remove the quote operator # from compiler_attributes.h __section macro. Convert all unquoted __section(foo) uses to quoted __section("foo"). Also convert __attribute__((section("foo"))) uses to __section("foo") even if the __attribute__ has multiple list entry forms. Conversion done using the script at: https://lore.kernel.org/lkml/75393e5ddc272dc7403de74d645e6c6e0f4e70eb.camel@perches.com/2-convert_section.plSigned-off-by:Joe Perches <joe@perches.com> Reviewed-by:
Nick Desaulniers <ndesaulniers@gooogle.com> Reviewed-by:
Miguel Ojeda <ojeda@kernel.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Rasmus Villemoes authored
tid_addr is not a "pointer to (pointer to int in userspace)"; it is in fact a "pointer to (pointer to int in userspace) in userspace". So sparse rightfully complains about passing a kernel pointer to put_user(). Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by:
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Eric Biggers authored
Commit 453431a5 ("mm, treewide: rename kzfree() to kfree_sensitive()") renamed kzfree() to kfree_sensitive(), but it left a compatibility definition of kzfree() to avoid being too disruptive. Since then a few more instances of kzfree() have slipped in. Just get rid of them and remove the compatibility definition once and for all. Signed-off-by:
Eric Biggers <ebiggers@google.com> Signed-off-by:
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Joe Perches authored
If set, use the environment variable GIT_DIR to change the default .git location of the kernel git tree. If GIT_DIR is unset, keep using the current ".git" default. Link: https://lkml.kernel.org/r/c5e23b45562373d632fccb8bc04e563abba4dd1d.camel@perches.comSigned-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Thomas Gleixner: "A time namespace fix and a matching selftest. The futex absolute timeouts which are based on CLOCK_MONOTONIC require time namespace corrected. This was missed in the original time namesapce support" * tag 'timers-urgent-2020-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/timens: Add a test for futex() futex: Adjust absolute futex timeouts with per time namespace offset
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Thomas Gleixner: "Two scheduler fixes: - A trivial build fix for sched_feat() to compile correctly with CONFIG_JUMP_LABEL=n - Replace a zero lenght array with a flexible array" * tag 'sched-urgent-2020-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/features: Fix !CONFIG_JUMP_LABEL case sched: Replace zero-length array with flexible-array
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