- 29 Apr, 2024 14 commits
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yunshui authored
As Documentation/filesystems/sysfs.rst suggested, show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by:
yunshui <jiangyunshui@kylinos.cn> Reviewed-by:
Ai Chao <aichao@kylinos.cn> Link: https://lore.kernel.org/r/20240419063649.2396461-1-jiangyunshui@kylinos.cnReviewed-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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yunshui authored
As Documentation/filesystems/sysfs.rst suggested, show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by:
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Colin Ian King authored
The PCH names in the pmc drivers are incorrect in the comments, fix these. Signed-off-by:
Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20240418215202.879171-1-colin.i.king@gmail.comReviewed-by:
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Srinivas Pandruvada authored
If none of the clusters are added because of some error, fail to load driver without presenting root domain. In this case root domain will present invalid data. Signed-off-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Fixes: 01c10f88 ("platform/x86/intel-uncore-freq: tpmi: Provide cluster level control") Cc: <stable@vger.kernel.org> # 6.5+ Link: https://lore.kernel.org/r/20240415215210.2824868-1-srinivas.pandruvada@linux.intel.comReviewed-by:
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Basavaraj Natikar authored
Add depended header file to fix error on i386 due to implicit declaration of function ‘writeq’. Fixes: 2dc77993 ("platform/x86/amd/pmc: Add AMD MP2 STB functionality") Reported-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202404160320.QAHyZ0c3-lkp@intel.com/Suggested-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
Basavaraj Natikar <Basavaraj.Natikar@amd.com> Reviewed-by:
Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Link: https://lore.kernel.org/r/20240416025312.731809-1-Basavaraj.Natikar@amd.comSigned-off-by:
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Jithu Joseph authored
One of the stages in IFS image loading process involves loading individual chunks (test patterns) from test image file to secure memory. Driver issues a WRMSR(MSR_AUTHENTICATE_AND_COPY_CHUNK) operation to do this. This operation can take up to 5 msec, and if an interrupt occurs in between, the AUTH_AND_COPY_CHUNK u-code implementation aborts the operation. Interrupt sources such as NMI or SMI are handled by retrying. Regular interrupts may occur frequently enough to prevent this operation from ever completing. Disable irq on local cpu around the aforementioned WRMSR to allow the operation to complete. Signed-off-by:
Jithu Joseph <jithu.joseph@intel.com> Reviewed-by:
Tony Luck <tony.luck@intel.com> Reviewed-by:
Ashok Raj <ashok.raj@intel.com> Reviewed-by:
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Jithu Joseph authored
In Field Scan test image files are named in ff-mm-ss-<batch02x>.scan format. Current trace output, prints the batch number in decimal format. Make it easier to correlate the trace line to a test image file by showing the batch number also in hex format. Add 0x prefix to all fields in the trace line to make the type explicit. Signed-off-by:
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Jithu Joseph authored
"Scan controller error" means that scan hardware encountered an error prior to doing an actual test on the target CPU. It does not mean that there is an actual cpu/core failure. "scan signature failure" indicates that the test result on the target core did not match the expected value and should be treated as a cpu failure. Current driver classifies both these scenarios as failures. Modify the driver to classify this situation with a more appropriate "untested" status instead of "fail" status. Signed-off-by:
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Ilpo Järvinen authored
The macros to_tlmi_pwd_setting() and to_tlmi_attr_setting() are fragile because they expect the variable name to be 'kobj', otherwise the build will fail because container_of()'s 3rd parameter (member) is taken from the parameter given to the macro. While at it, move them into a more logical place. Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by Mark Pearson <mpearson-lenovo@squebbb.ca> Link: https://lore.kernel.org/r/20240412130903.2836-1-ilpo.jarvinen@linux.intel.comReviewed-by:
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David E. Box authored
Add support to read the 'meter_current' file. The display is the same as the 'meter_certificate', but will show the current snapshot of the counters. Signed-off-by:
David E. Box <david.e.box@linux.intel.com> Reviewed-by:
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David E. Box authored
Add #define for feature length and move NUL assignment from callers to get_feature(). Signed-off-by:
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David E. Box authored
Fix errors in the calculation of the start position of the counters and in the display loop. While here, use a #define for the bundle count and size. Fixes: 7fdc03a7 ("tools/arch/x86: intel_sdsi: Add support for reading meter certificates") Signed-off-by:
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David E. Box authored
Fixes sdsi_meter_cert_show() to correctly decode and display the meter certificate output. Adds and displays a missing version field, displays the ASCII name of the signature, and fixes the print alignment. Fixes: 7fdc03a7 ("tools/arch/x86: intel_sdsi: Add support for reading meter certificates") Signed-off-by:
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David E. Box authored
The maximum number of bundles in the meter certificate was set to 8 which is much less than the maximum. Instead, since the bundles appear at the end of the file, set it based on the remaining file size from the bundle start position. Fixes: 7fdc03a7 ("tools/arch/x86: intel_sdsi: Add support for reading meter certificates") Signed-off-by:
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- 15 Apr, 2024 14 commits
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David E. Box authored
The meter_certificate file provides access to metering information that may be attested but is only updated every 8 hours. Add new attribute, meter_current, to allow reading an untested snapshot of the current values. Signed-off-by:
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Kuppuswamy Sathyanarayanan authored
As per SDSi in-band interface specification, sec titled "BIOS lock for in-band provisioning", when IB_LOCK bit is set in control qword, the SDSI agent is only allowed to perform the read flow, but not allowed to provision license blob or license key. So add check for it in sdsi_provision(). Signed-off-by:
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David E. Box authored
The current mailbox commands are either read-only or write-only and the flow is different for each. New commands will need to send and receive data. In preparation for these commands, create a common polling function to handle sending data and receiving in the same transaction. Signed-off-by:
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David E. Box authored
New mailbox commands will support sending multi packet writes and updated firmware now requires that the message size be written for all commands along with the packet size. Since the driver doesn't perform writes larger than the packet size, set the message size to the same value. Signed-off-by:
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Gergo Koteles authored
Some Thinkpads have a 'mode' button that switches between platform profiles. Use the new platform_module_cycle function instead of the existing switch-based one. Signed-off-by:
Gergo Koteles <soyer@irl.hu> Link: https://lore.kernel.org/r/eb2484f5356786578d820301b714335221524839.1712597199.git.soyer@irl.huReviewed-by:
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Gergo Koteles authored
Ideapad laptops have thermal management or performance mode switch key (Fn + Q). They report KEY_PROG4. If supported, cycle between platform profiles instead. Tested on Yoga7 14ARB7. Signed-off-by:
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Gergo Koteles authored
Some laptops have a key to switch platform profiles. Add a platform_profile_cycle() function to cycle between the enabled profiles. Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/5a97deddf72aa5e764d881eb39a7ba35c01a903e.1712597199.git.soyer@irl.huReviewed-by:
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Andy Shevchenko authored
Use GPIO_LOOKUP() macro which provides a compound literal and can be used with dynamic data. Signed-off-by:
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Hans de Goede authored
The Lenovo Yoga Tablet 2 Pro 1380F/L is a x86 ACPI tablet which ships with Android x86 as factory OS. Its DSDT contains a bunch of I2C devices which are not actually there, causing various resource conflicts. Enumeration of these is skipped through the acpi_quirk_skip_i2c_client_enumeration(). Add support for manually instantiating the I2C + other devices which are actually present on this tablet by adding the necessary device info to the x86-android-tablets module. Signed-off-by:
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Hans de Goede authored
Not all subsystems support a device getting removed while there are still consumers of the device with a reference to the device. One example of this is the regulator subsystem. If a regulator gets unregistered while there are still drivers holding a reference a WARN() at drivers/regulator/core.c:5829 triggers, e.g.: WARNING: CPU: 1 PID: 1587 at drivers/regulator/core.c:5829 regulator_unregister Hardware name: Intel Corp. VALLEYVIEW C0 PLATFORM/BYT-T FFD8, BIOS BLADE_21.X64.0005.R00.1504101516 FFD8_X64_R_2015_04_10_1516 04/10/2015 RIP: 0010:regulator_unregister Call Trace: <TASK> regulator_unregister devres_release_group i2c_device_remove device_release_driver_internal bus_remove_device device_del device_unregister x86_android_tablet_remove On the Lenovo Yoga Tablet 2 series the bq24190 charger chip also provides a 5V boost converter output for powering USB devices connected to the micro USB port, the bq24190-charger driver exports this as a Vbus regulator. On the 830 (8") and 1050 ("10") models this regulator is controlled by a platform_device and x86_android_tablet_remove() removes platform_device-s before i2c_clients so the consumer gets removed first. But on the 1380 (13") model there is a lc824206xa micro-USB switch connected over I2C and the extcon driver for that controls the regulator. The bq24190 i2c-client *must* be registered first, because that creates the regulator with the lc824206xa listed as its consumer. If the regulator has not been registered yet the lc824206xa driver will end up getting a dummy regulator. Since in this case both the regulator provider and consumer are I2C devices, the only way to ensure that the consumer is unregistered first is to unregister the I2C devices in reverse order of in which they were created. For consistency and to avoid similar problems in the future change x86_android_tablet_remove() to unregister all device types in reverse order. Signed-off-by: -
Basavaraj Natikar authored
AMD MP2 STB function provides a data buffer used to log debug information about the system execution during S2Idle suspend/resume. A data buffer known as the STB (Smart Trace Buffer) is a circular buffer which is a low-level log to assist in debugging by providing insights into any potential hangs or stalls that may occur during the S2Idle suspend/resume processes. The current PMC driver retrieves STB data from MP1, but there can be scenarios where MP1 might hang or become unresponsive, leading to the loss of critical data present in the STB buffer. This defeats the purpose of the STB buffer, which was originally meant to help identify system failures. This feature creates stb_read_previous_boot debugfs allows users to retrieve the STB log from MP2 specifically from the last occurrence of the S2Idle suspend/resume. A userspace daemon can access STB log of last S2Idle suspend/resume which can help to troubleshoot potential issues related to hangs or stalls during the S2Idle suspend/resume sequence. Reviewed-by:
Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by:
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Gergo Koteles authored
Some Ideapad/Yoga Laptops have an FnLock LED in the Esc key. Expose Fnlock as an LED class device for easier OSD support. Signed-off-by:
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Gergo Koteles authored
The FnLock is retrieved and set in several places in the code. Move details into ideapad_fn_lock_get and ideapad_fn_lock_set functions. Signed-off-by:
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Gergo Koteles authored
Newer laptops have FnLock LED. Add a define for this very common function. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by:
Lee Jones <lee@kernel.org> Reviewed-by:
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- 08 Apr, 2024 12 commits
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Luke D. Jones authored
Reorganises some attr-available calls to remove a few unrequired booleans in the main driver struct which combined with some reorganisation prevents a series of large holes seen with pahole. Reviewed-by:
Luke D. Jones <luke@ljones.dev> Link: https://lore.kernel.org/r/20240404001652.86207-10-luke@ljones.devSigned-off-by:
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Luke D. Jones authored
Add support for an MCU powersave WMI call. This is intended to set the MCU in to a low-power mode when sleeping. This mode can cut sleep power use by around half. Reviewed-by:
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Luke D. Jones authored
The previous work to allow the MCU to be resumed correctly after sleep and resume tried to take the shortest possible time. However as work continues in various other parts of the s2idle subsystems it has shown that it wasn't entirely reliable. If the MCU disable/enable call is done correctly the MCU fully removes its USB endpoints, and this shows as a full USB device reconnection on resume. When we tried to short this as much as possible sometimes the MCU doesn't get to complete what it needs to do before going to low-power and this affected the reconnection. Through trial it is found that the minimum time required is approx 1200ms to allow a proper disconnect and disable, and the same amount of time on resume is required to prevent a rapid disconnect/reconnect happening on seemingly random occasions. To be safe the time is now 1500ms for msleep. Reviewed-by:
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Luke D. Jones authored
Shift the call to dev_get_drvdata() up to top of the function block in all of the ppt_<name>() functions as part of a minor cleanup. Reviewed-by:
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Luke D. Jones authored
Laptops with any of the ppt or nv tunables default to the minimum setting on boot so we can safely assume a stored value is correct. This patch adds storing of those values in the local struct, and enables reading of those values back. To prevent creating a series of byte holes in the struct the "<name>_available" bool is removed and `asus_sysfs_is_visible()` uses the `ASUS_WMI_DEVID_<name>` directly. Reviewed-by:
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Luke D. Jones authored
Add support for toggling the BIOS POST sound on some ASUS laptops. Reviewed-by:
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Luke D. Jones authored
Adds support for a second TUF RGB wmi call that some versions of the TUF laptop come with. Also adjusts existing support to select whichever is available. Reviewed-by:
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Luke D. Jones authored
Add support for the Vivobook dgpu MUX available on the ASUS Viviobook and some of the other ranges (Zen). This MUX functions exactly the same as the existing ROG MUX support so the existing functionality now detects which MUX is available and uses that for control. Reviewed-by:
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Luke D. Jones authored
Support the 2024 mini-led backlight and adjust the related functions to select the relevant dev-id. Also add `available_mini_led_mode` to the platform sysfs since the available mini-led levels can be different. Reviewed-by:
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Armin Wolf authored
Since 2010, an LWN article covering WMI drivers exists: https://lwn.net/Articles/391230/ Since the introduction of the modern bus-based interface and other userspace tooling (bmfdec, lswmi, ...), this article is outdated and causes people to still submit new WMI drivers using the deprecated GUID-based interface. Fix this by adding a short guide on how to develop WMI drivers using the modern bus-based interface. Signed-off-by:
Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20240402143059.8456-4-W_Armin@gmx.deReviewed-by:
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Armin Wolf authored
The WMI driver core already makes sure that: - a valid WMI device is passed to each callback - the notify() callback runs after the probe() callback succeeds Remove the unnecessary NULL checks. Compile-tested only. Signed-off-by:
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Armin Wolf authored
Multiple WMI events can be received concurrently, so multiple instances of xiaomi_wmi_notify() can be active at the same time. Since the input device is shared between those handlers, the key input sequence can be disturbed. Fix this by protecting the key input sequence with a mutex. Compile-tested only. Fixes: edb73f4f ("platform/x86: wmi: add Xiaomi WMI key driver") Signed-off-by:
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