Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ https://git.shady.money/linux/atom?h=v5.12 2021-02-24T18:25:37Z 2021-02-24T18:25:37Z Linus Torvalds torvalds@linux-foundation.org 2021-02-24T18:25:37Z urn:sha1:e229b429bb4af24d9828758c0c851bb6a4169400 Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc/whatever driver subsystem updates for 5.12-rc1. Over time it seems like this tree is collecting more and more tiny driver subsystems in one place, making it easier for those maintainers, which is why this is getting larger. Included in here are: - coresight driver updates - habannalabs driver updates - virtual acrn driver addition (proper acks from the x86 maintainers) - broadcom misc driver addition - speakup driver updates - soundwire driver updates - fpga driver updates - amba driver updates - mei driver updates - vfio driver updates - greybus driver updates - nvmeem driver updates - phy driver updates - mhi driver updates - interconnect driver udpates - fsl-mc bus driver updates - random driver fix - some small misc driver updates (rtsx, pvpanic, etc.) All of these have been in linux-next for a while, with the only reported issue being a merge conflict due to the dfl_device_id addition from the fpga subsystem in here" * tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits) spmi: spmi-pmic-arb: Fix hw_irq overflow Documentation: coresight: Add PID tracing description coresight: etm-perf: Support PID tracing for kernel at EL2 coresight: etm-perf: Clarify comment on perf options ACRN: update MAINTAINERS: mailing list is subscribers-only regmap: sdw-mbq: use MODULE_LICENSE("GPL") regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ regmap: sdw: use _no_pm functions in regmap_read/write soundwire: intel: fix possible crash when no device is detected MAINTAINERS: replace my with email with replacements mhi: Fix double dma free uapi: map_to_7segment: Update example in documentation uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue firewire: replace tricky statement by two simple ones vme: make remove callback return void firmware: google: make coreboot driver's remove callback return void firmware: xilinx: Use explicit values for all enum values sample/acrn: Introduce a sample of HSM ioctl interface usage virt: acrn: Introduce an interface for Service VM to control vCPU ... 2021-02-24T17:38:36Z Linus Torvalds torvalds@linux-foundation.org 2021-02-24T17:38:36Z urn:sha1:825d1508750c0cad13e5da564d47a6d59c7612d6 Pull initial support for CXL (Compute Express Link) from Dan Williams: "Introduce an initial driver for CXL 2.0 Type-3 Memory Devices. CXL is Compute Express Link which released the 2.0 specification in November. The Linux relevant changes in CXL 2.0 are support for an OS to dynamically assign address space to memory devices, support for switches, persistent memory, and hotplug. A Type-3 Memory Device is a PCI enumerated device presenting the CXL Memory Device Class Code and implementing the CXL.mem protocol. CXL.mem allows device to advertise CPU and I/O coherent memory to the system, i.e. typical "System RAM" and "Persistent Memory" in Linux /proc/iomem terms. In addition to the CXL.mem fast path there is an administrative command hardware mailbox interface for maintenance and provisioning. It is this command interface that is the focus of the initial driver. With this driver a CXL device that is mapped by the BIOS can be administered by Linux. Linux support for CXL PMEM and dynamic CXL address space management are to be implemented post v5.12" Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 4cdadfd5e0a7 ("cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints") 13237183c735 ("cxl/mem: Add a "RAW" send command") 472b1ce6e9d6 ("cxl/mem: Enable commands via CEL") 57ee605b976c ("cxl/mem: Add set of informational commands") Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 8adaf747c9f0 ("cxl/mem: Find device capabilities") b39cb1052a5c ("cxl/mem: Register CXL memX devices") * tag 'cxl-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: cxl/mem: Fix potential memory leak cxl/mem: Return -EFAULT if copy_to_user() fails MAINTAINERS: Add maintainers of the CXL driver cxl/mem: Add set of informational commands cxl/mem: Enable commands via CEL cxl/mem: Add a "RAW" send command cxl/mem: Add basic IOCTL interface cxl/mem: Register CXL memX devices cxl/mem: Find device capabilities cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints 2021-02-22T18:57:46Z Linus Torvalds torvalds@linux-foundation.org 2021-02-22T18:57:46Z urn:sha1:0e63a5c6ba9679a903f95b10827f74fe183017fa Pull documentation updates from Jonathan Corbet: "It has been a relatively quiet cycle in docsland. - As promised, the minimum Sphinx version to build the docs is now 1.7, and we have dropped support for Python 2 entirely. That allowed the removal of a bunch of compatibility code. - A set of treewide warning fixups from Mauro that I applied after it became clear nobody else was going to deal with them. - The automarkup mechanism can now create cross-references from relative paths to RST files. - More translations, typo fixes, and warning fixes" * tag 'docs-5.12' of git://git.lwn.net/linux: (75 commits) docs: kernel-hacking: be more civil docs: Remove the Microsoft rhetoric Documentation/admin-guide: kernel-parameters: Update nohlt section doc/admin-guide: fix spelling mistake: "perfomance" -> "performance" docs: Document cross-referencing using relative path docs: Enable usage of relative paths to docs on automarkup docs: thermal: fix spelling mistakes Documentation: admin-guide: Update kvm/xen config option docs: Make syscalls' helpers naming consistent coding-style.rst: Avoid comma statements Documentation: /proc/loadavg: add 3 more field descriptions Documentation/submitting-patches: Add blurb about backtraces in commit messages Docs: drop Python 2 support Move our minimum Sphinx version to 1.7 Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams scripts/kernel-doc: add internal hyperlink to DOC: sections Update Documentation/admin-guide/sysctl/fs.rst docs: Update DTB format references docs: zh_CN: add iio index.rst translation docs/zh_CN: add iio ep93xx_adc.rst translation ... 2021-02-22T18:00:46Z Linus Torvalds torvalds@linux-foundation.org 2021-02-22T18:00:46Z urn:sha1:882d6edfc45cd2b6e33cf973eab9a1ae1dbad5d1 Pull gpio updates from Bartosz Golaszewski: "It's been a relatively calm release cycle and we're actually removing more code than we're adding. Summary: - new driver for the Toshiba Visconti platform - rework of interrupt handling in gpio-tegra - updates for GPIO selftests: we're now using the character device to perform the subsystem checks - support for a new rcar variant + some code refactoring - refactoring of gpio-ep93xx - SPDX License identifier has been updated in the uapi header so that userspace programs bundling it can become fully REUSE-compliant - improvements to pwm handling in gpio-mvebu - support for interrupt handling and power management for gpio-xilinx as well as some code refactoring - support for a new chip variant in gpio-pca953x - removal of drivers: zte xs & intel-mid and removal of leftovers from intel-msic - impovements to intel drivers pulled from Andy Shevchenko - improvements to the gpio-aggregator virtual GPIO driver - and several minor tweaks and fixes to code and documentation all over the place" * tag 'gpio-updates-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (71 commits) gpio: pcf857x: Fix missing first interrupt gpio: ep93xx: refactor base IRQ number gpio: ep93xx: refactor ep93xx_gpio_add_bank gpio: ep93xx: Fix typo s/hierarchial/hierarchical gpio: ep93xx: drop to_irq binding gpio: ep93xx: Fix wrong irq numbers in port F gpio: uapi: use the preferred SPDX license identifier gpio: gpio-xilinx: Add check if width exceeds 32 gpio: gpio-xilinx: Add support for suspend and resume gpio: gpio-xilinx: Add interrupt support gpio: gpio-xilinx: Reduce spinlock array to array gpio: gpio-xilinx: Simplify with dev_err_probe() gpio: msic: Drop driver from Makefile gpio: wcove: Split out to_ireg() helper and deduplicate the code gpio: wcove: Switch to use regmap_set_bits(), regmap_clear_bits() gpio: wcove: Get rid of error prone casting in IRQ handler gpio: intel-mid: Remove driver for deprecated platform gpio: msic: Remove driver for deprecated platform gpio: aggregator: Remove trailing comma in terminator entries gpio: aggregator: Use compound literal from the header ... 2021-02-22T17:39:11Z Linus Torvalds torvalds@linux-foundation.org 2021-02-22T17:39:11Z urn:sha1:5d26c176d58bc3f9380b18ba2f51a1d863c6a5a0 Pull thermal updates from Daniel Lezcano: - Use the newly introduced 'hot' and 'critical' ops for the acpi thermal driver (Daniel Lezcano) - Remove the notify ops as it is no longer used (Daniel Lezcano) - Remove the 'forced passive' option and the unused bind/unbind functions (Daniel Lezcano) - Remove the THERMAL_TRIPS_NONE and the code cleanup around this macro (Daniel Lezcano) - Rework the delays to make them pre-computed instead of computing them again and again at each polling interval (Daniel Lezcano) - Remove the pointless 'thermal_zone_device_reset' function (Daniel Lezcano) - Use the critical and hot ops to prevent an unexpected system shutdown on int340x (Kai-Heng Feng) - Make the cooling device state private to the thermal subsystem (Daniel Lezcano) - Prevent to use not-power-aware actor devices with the power allocator governor (Lukasz Luba) - Remove 'zx' and 'tango' support along with the corresponding platforms (Arnd Bergman) - Fix several issues on the Omap thermal driver (Tony Lindgren) - Add support for adc-tm5 PMIC thermal monitor for Qcom platforms (Dmitry Baryshkov) - Fix an initialization loop in the adc-tm5 (Colin Ian King) - Fix a return error check in the cpufreq cooling device (Viresh Kumar) * tag 'thermal-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (26 commits) thermal: cpufreq_cooling: freq_qos_update_request() returns < 0 on error thermal: qcom: Fix comparison with uninitialized variable channels_available thermal: qcom: add support for adc-tm5 PMIC thermal monitor dt-bindings: thermal: qcom: add adc-thermal monitor bindings thermal: ti-soc-thermal: Use non-inverted define for omap4 thermal: ti-soc-thermal: Simplify polling with iopoll thermal: ti-soc-thermal: Fix stuck sensor with continuous mode for 4430 thermal: ti-soc-thermal: Skip pointless register access for dra7 thermal/drivers/zx: Remove zx driver thermal/drivers/tango: Remove tango driver thermal: power allocator: fail binding for non-power actor devices thermal/core: Make cooling device state change private thermal: intel: pch: Fix unexpected shutdown at critical temperature thermal: int340x: Fix unexpected shutdown at critical temperature thermal/core: Remove pointless thermal_zone_device_reset() function thermal/core: Remove ms based delay fields thermal/core: Use precomputed jiffies for the polling thermal/core: Precompute the delays from msecs to jiffies thermal/core: Remove unused macro THERMAL_TRIPS_NONE thermal/core: Remove THERMAL_TRIPS_NONE test ... 2021-02-22T16:50:01Z Linus Torvalds torvalds@linux-foundation.org 2021-02-22T16:50:01Z urn:sha1:983e4adae0cfa4d3dfdf73b79aabc450dda8ce0e Pull x86 platform driver updates from Hans de Goede: "Highlights: - Microsoft Surface devices System Aggregator Module support - SW_TABLET_MODE reporting improvements - thinkpad_acpi keyboard language setting support - platform / DPTF profile settings support: - Base / userspace API parts merged from Rafael's acpi-platform branch - thinkpad_acpi and ideapad-laptop support through pdx86 - Remove support for some obsolete Intel MID platforms through merging of the shared intel-mid-removal branch - Big cleanup of the ideapad-laptop driver - Misc other fixes / new hw support / quirks" * tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (99 commits) platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds platform/surface: aggregator: Fix access of unaligned value tools/power/x86/intel-speed-select: Update version to 1.8 tools/power/x86/intel-speed-select: Add new command to get/set TRL tools/power/x86/intel-speed-select: Add new command turbo-mode Platform: OLPC: Constify static struct regulator_ops platform/surface: Add Surface Hot-Plug driver platform/x86: intel_scu_wdt: Drop mistakenly added const platform/x86: Kconfig: add missing selects for ideapad-laptop platform/x86: acer-wmi: Don't use ACPI_EXCEPTION() platform/x86: thinkpad_acpi: Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on platform/x86: thinkpad_acpi: Fix 'warning: no previous prototype for' warnings platform/x86: msi-wmi: Fix variable 'status' set but not used compiler warning platform/surface: surface3-wmi: Fix variable 'status' set but not used compiler warning platform/x86: Move all dell drivers to their own subdirectory Documentation/ABI: sysfs-platform-ideapad-laptop: conservation_mode attribute Documentation/ABI: sysfs-platform-ideapad-laptop: update device attribute paths platform/x86: ideapad-laptop: add "always on USB charging" control support platform/x86: ideapad-laptop: add keyboard backlight control support platform/x86: ideapad-laptop: send notification about touchpad state change to sysfs ... 2021-02-21T22:10:36Z Linus Torvalds torvalds@linux-foundation.org 2021-02-21T22:10:36Z urn:sha1:de1617578849acab8e16c9ffdce39b91fb50639d Pull media updates from Mauro Carvalho Chehab: - some core fixes in VB2 mem2mem support - some improvements and cleanups in V4L2 async kAPI - newer controls in V4L2 API for H-264 and HEVC codecs - allegro-dvt driver was promoted from staging - new i2c sendor drivers: imx334, ov5648, ov8865 - new automobile camera module: rdacm21 - ipu3 cio2 driver started gained support for some ACPI BIOSes - new ATSC frontend: MaxLinear mxl692 VSB tuner/demod - the SMIA/CCS driver gained more support for CSS standard - several driver fixes, updates and improvements * tag 'media/v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (362 commits) media: v4l: async: Fix kerneldoc documentation for async functions media: i2c: max9271: Add MODULE_* macros media: i2c: Kconfig: Make MAX9271 a module media: imx334: 'ret' is uninitialized, should have been PTR_ERR() media: i2c: Add imx334 camera sensor driver media: dt-bindings: media: Add bindings for imx334 media: ov8856: Configure sensor for GRBG Bayer for all modes media: i2c: imx219: Implement V4L2_CID_LINK_FREQ control media: ov5675: fix vflip/hflip control media: ipu3-cio2: Build bridge only if ACPI is enabled media: Remove the legacy v4l2-clk API media: ov6650: Use the generic clock framework media: mt9m111: Use the generic clock framework media: ov9640: Use the generic clock framework media: pxa_camera: Drop the v4l2-clk clock register media: mach-pxa: Register the camera sensor fixed-rate clock media: i2c: imx258: get clock from device properties and enable it via runtime PM media: i2c: imx258: simplify getting state container media: i2c: imx258: add support for binding via device tree media: dt-bindings: media: imx258: add bindings for IMX258 sensor ... 2021-02-17T04:36:38Z Ben Widawsky ben.widawsky@intel.com 2021-02-17T04:09:53Z urn:sha1:583fa5e71caeb79e04e477e9837e2f7fa53b71e4 Add a straightforward IOCTL that provides a mechanism for userspace to query the supported memory device commands. CXL commands as they appear to userspace are described as part of the UAPI kerneldoc. The command list returned via this IOCTL will contain the full set of commands that the driver supports, however, some of those commands may not be available for use by userspace. Memory device commands first appear in the CXL 2.0 specification. They are submitted through a mailbox mechanism specified in the CXL 2.0 specification. The send command allows userspace to issue mailbox commands directly to the hardware. The list of available commands to send are the output of the query command. The driver verifies basic properties of the command and possibly inspect the input (or output) payload to determine whether or not the command is allowed (or might taint the kernel). Reported-by: kernel test robot <lkp@intel.com> # bug in earlier revision Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> (v2) Cc: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/20210217040958.1354670-5-ben.widawsky@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> 2021-02-17T04:36:38Z Dan Williams dan.j.williams@intel.com 2021-02-17T04:09:52Z urn:sha1:b39cb1052a5cf41bc12201ec1c0ddae5cb8be868 Create the /sys/bus/cxl hierarchy to enumerate: * Memory Devices (per-endpoint control devices) * Memory Address Space Devices (platform address ranges with interleaving, performance, and persistence attributes) * Memory Regions (active provisioned memory from an address space device that is in use as System RAM or delegated to libnvdimm as Persistent Memory regions). For now, only the per-endpoint control devices are registered on the 'cxl' bus. However, going forward it will provide a mechanism to coordinate cross-device interleave. Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> (v2) Link: https://lore.kernel.org/r/20210217040958.1354670-4-ben.widawsky@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> 2021-02-17T04:36:38Z Ben Widawsky ben.widawsky@intel.com 2021-02-17T04:09:51Z urn:sha1:8adaf747c9f0b470aea1b0c88583aa0a344e1540 Provide enough functionality to utilize the mailbox of a memory device. The mailbox is used to interact with the firmware running on the memory device. The flow is proven with one implemented command, "identify". Because the class code has already told the driver this is a memory device and the identify command is mandatory. CXL devices contain an array of capabilities that describe the interactions software can have with the device or firmware running on the device. A CXL compliant device must implement the device status and the mailbox capability. Additionally, a CXL compliant memory device must implement the memory device capability. Each of the capabilities can [will] provide an offset within the MMIO region for interacting with the CXL device. The capabilities tell the driver how to find and map the register space for CXL Memory Devices. The registers are required to utilize the CXL spec defined mailbox interface. The spec outlines two mailboxes, primary and secondary. The secondary mailbox is earmarked for system firmware, and not handled in this driver. Primary mailboxes are capable of generating an interrupt when submitting a background command. That implementation is saved for a later time. Reported-by: Colin Ian King <colin.king@canonical.com> (coverity) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> (smatch) Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> (v2) Link: https://www.computeexpresslink.org/download-the-specification Link: https://lore.kernel.org/r/20210217040958.1354670-3-ben.widawsky@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>