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2021-07-05drm/mgag200: Constify LUT for programming bppThomas Zimmermann2-12/+6
Declare constant LUT for bpp programming as static const. Removes mutable data from device structure. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075642.27834-5-tzimmermann@suse.de
2021-07-05drm/mgag200: Extract device type and flags in mgag200_pci_probe()Thomas Zimmermann2-16/+17
The type and flags values are stored in the PCI ID list. Extract them in the probe function. Makes the device initialization more readable. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075642.27834-4-tzimmermann@suse.de
2021-07-05drm/mgag200: Inline mgag200_device_init()Thomas Zimmermann1-28/+13
Inline mgag200_device_init() into mgag200_device_create(), which is the only caller. Also remove a duplicate error message for mgag200_modeset_init(). The function will print an error if/where it failed. v2: * include a note about the removed error message in changelog (Sam) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075642.27834-3-tzimmermann@suse.de
2021-07-05drm/mgag200: Don't pass flags to drm_dev_register()Thomas Zimmermann1-1/+1
The flags argument is only relevant for UMS drivers. Pass 0. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075642.27834-2-tzimmermann@suse.de
2021-07-05drm/vram-helper: Unexport drm_vram_helper_{alloc,release}_mm()Thomas Zimmermann1-6/+3
All GEM-VRAM-based drivers use auto-cleanup via drmm_vram_helper_init(). Unexport the manual APIs and make them internal implementation. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075434.27677-4-tzimmermann@suse.de
2021-07-05drm/bochs: Use managed initialization for GEM VRAM helpersThomas Zimmermann1-38/+5
Convert to managed GEM VRAM initialization and switch bochs to full autocleanup. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075434.27677-3-tzimmermann@suse.de
2021-07-05drm/bochs: Move to tiny/Thomas Zimmermann12-846/+780
The bochs driver is only ~600 lines of code. Putting it into tiny/ cleans up the DRM directory slightly. Some style problems were fixed and unneeded include statements were removed. No functional changes. v2: * make bochs_mode_funcs static (Daniel, kernel test robot) * rebase onto aperture API changes Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075434.27677-2-tzimmermann@suse.de
2021-07-04Merge branch 'next' into for-linusDmitry Torokhov439-2371/+4595
Prepare input updates for 5.14 merge window.
2021-07-04Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctlAlexander Larkin1-1/+1
Even though we validate user-provided inputs we then traverse past validated data when applying the new map. The issue was originally discovered by Murray McAllister with this simple POC (if the following is executed by an unprivileged user it will instantly panic the system): int main(void) { int fd, ret; unsigned int buffer[10000]; fd = open("/dev/input/js0", O_RDONLY); if (fd == -1) printf("Error opening file\n"); ret = ioctl(fd, JSIOCSBTNMAP & ~IOCSIZE_MASK, &buffer); printf("%d\n", ret); } The solution is to traverse internal buffer which is guaranteed to only contain valid date when constructing the map. Fixes: 182d679b2298 ("Input: joydev - prevent potential read overflow in ioctl") Fixes: 999b874f4aa3 ("Input: joydev - validate axis/button maps before clobbering current ones") Reported-by: Murray McAllister <murray.mcallister@gmail.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Alexander Larkin <avlarkin82@gmail.com> Link: https://lore.kernel.org/r/20210620120030.1513655-1-avlarkin82@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-07-04Merge tag 's390-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds41-1076/+327
Pull s390 updates from Vasily Gorbik: - Rework inline asm to get rid of error prone "register asm" constructs, which are problematic especially when code instrumentation is enabled. In particular introduce and use register pair union to allocate even/odd register pairs. Unfortunately this breaks compatibility with older clang compilers and minimum clang version for s390 has been raised to 13. https://lore.kernel.org/linux-next/CAK7LNARuSmPCEy-ak0erPrPTgZdGVypBROFhtw+=3spoGoYsyw@mail.gmail.com/ - Fix gcc 11 warnings, which triggered various minor reworks all over the code. - Add zstd kernel image compression support. - Rework boot CPU lowcore handling. - De-duplicate and move kernel memory layout setup logic earlier. - Few fixes in preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for mem functions. - Remove broken and unused power management support leftovers in s390 drivers. - Disable stack-protector for decompressor and purgatory to fix buildroot build. - Fix vt220 sclp console name to match the char device name. - Enable HAVE_IOREMAP_PROT and add zpci_set_irq()/zpci_clear_irq() in zPCI code. - Remove some implausible WARN_ON_ONCEs and remove arch specific counter transaction call backs in favour of default transaction handling in perf code. - Extend/add new uevents for online/config/mode state changes of AP card / queue device in zcrypt. - Minor entry and ccwgroup code improvements. - Other small various fixes and improvements all over the code. * tag 's390-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (91 commits) s390/dasd: use register pair instead of register asm s390/qdio: get rid of register asm s390/ioasm: use symbolic names for asm operands s390/ioasm: get rid of register asm s390/cmf: get rid of register asm s390/lib,string: get rid of register asm s390/lib,uaccess: get rid of register asm s390/string: get rid of register asm s390/cmpxchg: use register pair instead of register asm s390/mm,pages-states: get rid of register asm s390/lib,xor: get rid of register asm s390/timex: get rid of register asm s390/hypfs: use register pair instead of register asm s390/zcrypt: Switch to flexible array member s390/speculation: Use statically initialized const for instructions virtio/s390: get rid of open-coded kvm hypercall s390/pci: add zpci_set_irq()/zpci_clear_irq() scripts/min-tool-version.sh: Raise minimum clang version to 13.0.0 for s390 s390/ipl: use register pair instead of register asm s390/mem_detect: fix tprot() program check new psw handling ...
2021-07-04Merge tag 'cxl-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxlLinus Torvalds12-283/+2466
Pull CXL (Compute Express Link) updates from Dan Williams: "This subsystem is still in the build-out phase as the bulk of the update is improvements to enumeration and fleshing out the device model. In terms of new features, more mailbox commands have been added to the allowed-list in support of persistent memory provisioning support targeting v5.15. The critical update from an enumeration perspective is support for the CXL Fixed Memory Window Structure that indicates to Linux which system physical address ranges decode to the CXL Host Bridges in the system. This allows the driver to detect which address ranges have been mapped by firmware and what address ranges are available for future hotplug. So, again, mostly skeleton this round, with more meat targeting v5.15. Summary: - Add support for the CXL Fixed Memory Window Structure, a recent extension of the ACPI CEDT (CXL Early Discovery Table) - Add infrastructure for component registers - Add HDM (Host-managed device memory) decoder definitions - Define a device model for an HDM decoder tree - Bridge CXL persistent memory capabilities to an NVDIMM bus / device-model - Switch to fine grained mapping of CXL MMIO registers to allow different drivers / system software to own individual register blocks - Enable media provisioning commands, and publish the label storage area size in sysfs - Miscellaneous cleanups and fixes" * tag 'cxl-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (34 commits) cxl/pci: Rename CXL REGLOC ID cxl/acpi: Use the ACPI CFMWS to create static decoder objects cxl/acpi: Add the Host Bridge base address to CXL port objects cxl/pmem: Register 'pmem' / cxl_nvdimm devices libnvdimm: Drop unused device power management support libnvdimm: Export nvdimm shutdown helper, nvdimm_delete() cxl/pmem: Add initial infrastructure for pmem support cxl/core: Add cxl-bus driver infrastructure cxl/pci: Add media provisioning required commands cxl/component_regs: Fix offset cxl/hdm: Fix decoder count calculation cxl/acpi: Introduce cxl_decoder objects cxl/acpi: Enumerate host bridge root ports cxl/acpi: Add downstream port data to cxl_port instances cxl/Kconfig: Default drivers to CONFIG_CXL_BUS cxl/acpi: Introduce the root of a cxl_port topology cxl/pci: Fixup devm_cxl_iomap_block() to take a 'struct device *' cxl/pci: Add HDM decoder capabilities cxl/pci: Reserve individual register block regions cxl/pci: Map registers based on capabilities ...
2021-07-04Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds16-134/+341
Pull i2c updates from Wolfram Sang: - core supports now bus regulators controlling power for SCL/SDA - quite some DT binding conversions to YAML - added a seperate DT binding for the optional SMBus Alert feature - documentation with examples how to deal with I2C sysfs files - some bigger rework for the i801 driver - and a few usual driver updates * 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (42 commits) i2c: ali1535: mention that the device should not be disabled i2c: mpc: Restore reread of I2C status register i2c: core-smbus: Expose PEC calculate function for generic use Documentation: i2c: Add doc for I2C sysfs i2c: core: Disable client irq on reboot/shutdown dt-bindings: i2c: update bindings for MT8195 SoC i2c: imx: Fix some checkpatch warnings i2c: davinci: Simplify with dev_err_probe() i2c: cadence: Simplify with dev_err_probe() i2c: xiic: Simplify with dev_err_probe() i2c: cadence: Clear HOLD bit before xfer_size register rolls over dt-bindings: i2c: ce4100: Replace "ti,pcf8575" by "nxp,pcf8575" i2c: i801: Improve i801_setup_hstcfg i2c: i801: Use driver name constant instead of function dev_driver_string i2c: i801: Simplify initialization of i2c_board_info in i801_probe_optional_slaves i2c: i801: Improve status polling i2c: cht-wc: Replace of_node by NULL i2c: riic: Add RZ/G2L support dt-bindings: i2c: renesas,riic: Document RZ/G2L I2C controller dt-bindings: i2c: renesas,iic: Convert to json-schema ...
2021-07-04scsi: blkcg: Fix application ID config optionsMartin K. Petersen1-13/+0
Commit d2bcbeab4200 ("scsi: blkcg: Add app identifier support for blkcg") introduced an FC_APPID config option under SCSI. However, the added config option is not used anywhere. Simply remove it. The block layer BLK_CGROUP_FC_APPID config option is what actually controls whether the application ID code should be built or not. Make this option dependent on NVMe over FC since that is currently the only transport which supports the capability. Fixes: d2bcbeab4200 ("scsi: blkcg: Add app identifier support for blkcg") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-04thermal/drivers/int340x/processor_thermal: Fix tcc settingSrinivas Pandruvada1-8/+12
The following fixes are done for tcc sysfs interface: - TCC is 6 bits only from bit 29-24 - TCC of 0 is valid - When BIT(31) is set, this register is read only - Check for invalid tcc value - Error for negative values Fixes: fdf4f2fb8e899 ("drivers: thermal: processor_thermal_device: Export sysfs interface for TCC offset") Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: stable@vger.kernel.org Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210628215803.75038-1-srinivas.pandruvada@linux.intel.com
2021-07-04thermal/drivers/int340x/processor_thermal: Fix warning for return valueSrinivas Pandruvada1-1/+3
Fix smatch warnings: drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c:258 proc_thermal_pci_probe() warn: missing error code 'ret' Use PTR_ERR to return failure of thermal_zone_device_register(). Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210628183232.62877-1-srinivas.pandruvada@linux.intel.com
2021-07-04thermal/drivers/mediatek: Add sensors-supportFrank Wunderlich1-0/+6
Add HWMON-support to mediateks thermal driver to allow lm-sensors userspace tools read soc temperature Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210608154530.70074-1-linux@fw-web.de
2021-07-04thermal/drivers/int340x/processor_thermal: Add PCI MMIO based thermal driverSrinivas Pandruvada4-1/+373
Add a new PCI driver which register a thermal zone and allows to get notification for threshold violation by a RW trip point. These notifications are delivered from the device using MSI based interrupt. The main difference between this new PCI driver and the existing one is that the temperature and trip points directly use PCI MMIO instead of using ACPI methods. This driver registers a thermal zone "TCPU_PCI" in addition to the legacy processor thermal device, which uses ACPI companion device to set name, temperature and trips. This driver is enabled for AlderLake. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210525204811.3793651-3-srinivas.pandruvada@linux.intel.com
2021-07-04thermal/drivers/int340x/processor_thermal: Split enumeration and processing partSrinivas Pandruvada5-259/+286
Remove enumeration part from the processor_thermal_device to two different modules. One for ACPI and one for PCI: ACPI enumeration: int3401_thermal PCI part: processor_thermal_device_pci_legacy The current processor_thermal_device now just implements interface functions to be used by the ACPI and PCI enumeration module. This is done by: 1. Make functions proc_thermal_add() and proc_thermal_remove() non static and export them for usage in other processor_thermal_device_pci_legacy.c and in int3401_thermal.c. 2. Move the sysfs file creation for TCC offset and power limit attribute group to the proc_thermal_add() from the individual enumeration callbacks for PCI and ACPI. 3. Create new interface functions proc_thermal_mmio_add() and proc_thermal_mmio_remove() which will be called from the processor_thermal_device_pci_legacy module. 4. Export proc_thermal_resume(), so that it can be used by power management callbacks. 5. Remove special check for double enumeration as it never happens. While here, fix some cleanup on error conditions in proc_thermal_add(). No functional changes are expected with this change. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210525204811.3793651-2-srinivas.pandruvada@linux.intel.com
2021-07-04thermal: devfreq_cooling: Fix kernel-docYang Li1-1/+1
Fix function name in devfreq_cooling.c comment to remove a warning found by kernel-doc. drivers/thermal/devfreq_cooling.c:479: warning: expecting prototype for devfreq_cooling_em_register_power(). Prototype was for devfreq_cooling_em_register() instead. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1623223350-128104-1-git-send-email-yang.lee@linux.alibaba.com
2021-07-04thermal/drivers/intel/intel_soc_dts_iosf: Switch to use find_first_zero_bit()Andy Shevchenko1-7/+8
Switch to use find_first_zero_bit() instead of open-coded variant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210618153451.89246-1-andriy.shevchenko@linux.intel.com
2021-07-04thermal/core/thermal_of: Stop zone device before unregistering itDmitry Osipenko1-0/+3
Zone device is enabled after thermal_zone_of_sensor_register() completion, but it's not disabled before senor is unregistered, leaving temperature polling active. This results in accessing a disabled zone device and produces a warning about this problem. Stop zone device before unregistering it in order to fix this "use-after-free" problem. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210616190417.32214-3-digetx@gmail.com
2021-07-03net: marvell: always set skb_shared_info in mvneta_swbm_add_rx_fragmentLorenzo Bianconi1-10/+10
Always set skb_shared_info data structure in mvneta_swbm_add_rx_fragment routine even if the fragment contains only the ethernet FCS. Fixes: 039fbc47f9f1 ("net: mvneta: alloc skb_shared_info on the mvneta_rx_swbm stack") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-03Merge tag 'leds-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-ledsLinus Torvalds26-147/+145
Pull LED updates from Pavel Machek: "This contains quite a lot of fixes, with more fixes in my inbox that did not make it (sorry)" * tag 'leds-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (36 commits) leds: lgm: Fix up includes leds: ktd2692: Fix an error handling path leds: as3645a: Fix error return code in as3645a_parse_node() leds: turris-omnia: add missing MODULE_DEVICE_TABLE leds: lp55xx: Initialize enable GPIO direction to output leds: lm36274: Add missed property.h leds: el15203000: Make error handling more robust leds: pwm: Make error handling more robust leds: lt3593: Make use of device properties leds: lp50xx: Put fwnode in error case during ->probe() leds: lm3697: Don't spam logs when probe is deferred leds: lm3692x: Put fwnode in any case during ->probe() leds: lm36274: Correct headers (of*.h -> mod_devicetable.h) leds: lm36274: Put fwnode in error case during ->probe() leds: lm3532: Make error handling more robust leds: lm3532: select regmap I2C API leds: lgm-sso: Drop duplicate NULL check for GPIO operations leds: lgm-sso: Remove unneeded of_match_ptr() leds: lgm-sso: Fix clock handling leds: el15203000: Introduce to_el15203000_led() helper ...
2021-07-03Merge tag 'vfio-v5.14-rc1' of git://github.com/awilliam/linux-vfioLinus Torvalds19-210/+220
Pull VFIO updates from Alex Williamson: - Module reference fixes, structure renaming (Max Gurtovoy) - Export and use common pci_dev_trylock() (Luis Chamberlain) - Enable direct mdev device creation and probing by parent (Christoph Hellwig & Jason Gunthorpe) - Fix mdpy error path leak (Colin Ian King) - Fix mtty list entry leak (Jason Gunthorpe) - Enforce mtty device limit (Alex Williamson) - Resolve concurrent vfio-pci mmap faults (Alex Williamson) * tag 'vfio-v5.14-rc1' of git://github.com/awilliam/linux-vfio: vfio/pci: Handle concurrent vma faults vfio/mtty: Enforce available_instances vfio/mtty: Delete mdev_devices_list vfio: use the new pci_dev_trylock() helper to simplify try lock PCI: Export pci_dev_trylock() and pci_dev_unlock() vfio/mdpy: Fix memory leak of object mdev_state->vconfig vfio/iommu_type1: rename vfio_group struck to vfio_iommu_group vfio/mbochs: Convert to use vfio_register_group_dev() vfio/mdpy: Convert to use vfio_register_group_dev() vfio/mtty: Convert to use vfio_register_group_dev() vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind vfio/mdev: Remove CONFIG_VFIO_MDEV_DEVICE driver core: Export device_driver_attach() driver core: Don't return EPROBE_DEFER to userspace during sysfs bind driver core: Flow the return code from ->probe() through to sysfs bind driver core: Better distinguish probe errors in really_probe driver core: Pull required checks into driver_probe_device() vfio/platform: remove unneeded parent_module attribute vfio: centralize module refcount in subsystem layer
2021-07-03Merge tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds15-39/+39
Pull tracing updates from Steven Rostedt: - Added option for per CPU threads to the hwlat tracer - Have hwlat tracer handle hotplug CPUs - New tracer: osnoise, that detects latency caused by interrupts, softirqs and scheduling of other tasks. - Added timerlat tracer that creates a thread and measures in detail what sources of latency it has for wake ups. - Removed the "success" field of the sched_wakeup trace event. This has been hardcoded as "1" since 2015, no tooling should be looking at it now. If one exists, we can revert this commit, fix that tool and try to remove it again in the future. - tgid mapping fixed to handle more than PID_MAX_DEFAULT pids/tgids. - New boot command line option "tp_printk_stop", as tp_printk causes trace events to write to console. When user space starts, this can easily live lock the system. Having a boot option to stop just after boot up is useful to prevent that from happening. - Have ftrace_dump_on_oops boot command line option take numbers that match the numbers shown in /proc/sys/kernel/ftrace_dump_on_oops. - Bootconfig clean ups, fixes and enhancements. - New ktest script that tests bootconfig options. - Add tracepoint_probe_register_may_exist() to register a tracepoint without triggering a WARN*() if it already exists. BPF has a path from user space that can do this. All other paths are considered a bug. - Small clean ups and fixes * tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (49 commits) tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT tracing: Simplify & fix saved_tgids logic treewide: Add missing semicolons to __assign_str uses tracing: Change variable type as bool for clean-up trace/timerlat: Fix indentation on timerlat_main() trace/osnoise: Make 'noise' variable s64 in run_osnoise() tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing tracing: Fix spelling in osnoise tracer "interferences" -> "interference" Documentation: Fix a typo on trace/osnoise-tracer trace/osnoise: Fix return value on osnoise_init_hotplug_support trace/osnoise: Make interval u64 on osnoise_main trace/osnoise: Fix 'no previous prototype' warnings tracing: Have osnoise_main() add a quiescent state for task rcu seq_buf: Make trace_seq_putmem_hex() support data longer than 8 seq_buf: Fix overflow in seq_buf_putmem_hex() trace/osnoise: Support hotplug operations trace/hwlat: Support hotplug operations trace/hwlat: Protect kdata->kthread with get/put_online_cpus trace: Add timerlat tracer trace: Add osnoise tracer ...
2021-07-03Merge tag 'devicetree-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds6-109/+64
Pull devicetree updates from Rob Herring: - Refine reserved memory nomap handling - Merge some PCI and non-PCI address handling implementations - Simplify of_address.h header ifdefs - Improve printk handling of some 64-bit types - Convert adi,adv7511, Arm ccree, Arm SCMI, Arm SCU, Arm TWD timer, Arm VIC, arm,sbsa-gwdt, Arm/Amlogic SCPI, Aspeed I2C, Broadcom iProc PWM, linaro,optee-tz, MDIO GPIO, Mediatek RNG, MTD physmap, NXP pcf8563/pcf85263/pcf85363, Renesas TPU, renesas,emev2-smu, renesas,r9a06g032-sysctrl, sysc-rmobile, Tegra20 EMC, TI AM56 PCI, TI OMAP mailbox, TI SCI bindings, virtio-mmio, Zynq FPGA, and ZynqMP RTC to DT schema - Convert mux and mux controller bindings to schema. This includes MDIO IIO, and I2C muxes. - Add Arm PL031 RTC binding schema - Add vendor prefixes for StarFive Technology Co. Ltd. and Insignal Ltd - Fix some stale doc references - Remove stale property-units.txt. Superseded by schema in dt-schema repo. - Fixes for 'unevaluatedProperties' handling (enabled with experimental json-schema support) - Drop redundant usage of minItems and maxItems across the tree - Update some examples to use bindings with a schema * tag 'devicetree-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (83 commits) dt-bindings: Fix 'unevaluatedProperties' errors in DT graph users dt-bindings: display: renesas,du: Fix 'ports' reference dt-bindings: media: adv7180: Add missing video-interfaces.yaml reference dt-bindings: crypto: ccree: Convert to json-schema dt-bindings: fpga: zynq: convert bindings to YAML dt-bindings: rtc: zynqmp: convert bindings to YAML dt-bindings: interrupt-controller: Convert ARM VIC to json-schema of: of_reserved_mem: mark nomap memory instead of removing of: of_reserved_mem: only call memblock_free for normal reserved memory dt-bindings: Drop redundant minItems/maxItems dt-bindings: spmi: Correct 'reg' schema of: reserved-memory: Add stub for RESERVEDMEM_OF_DECLARE() dt-bindings: clk: vc5: Fix example dt-bindings: timer: renesas,tmu: add r8a779a0 TMU support dt-bindings: drm: bridge: adi,adv7511.txt: convert to yaml dt-bindings: PCI: ti,am65: Convert PCIe host/endpoint mode dt-bindings to YAML of: Remove superfluous casts when printing u64 values of: Fix truncation of memory sizes on 32-bit platforms dt-bindings: rtc: nxp,pcf8563: Absorb pcf85263/pcf85363 bindings dt-bindings: pwm: Use examples with documented/matching schema ...
2021-07-03virtio: fix up virtio_disable_cbMichael S. Tsirkin1-1/+25
virtio_disable_cb is currently a nop for split ring with event index. This is because it used to be always called from a callback when we know device won't trigger more events until we update the index. However, now that we run with interrupts enabled a lot we also poll without a callback so that is different: disabling callbacks will help reduce the number of spurious interrupts. Further, if using event index with a packed ring, and if being called from a callback, we actually do disable interrupts which is unnecessary. Fix both issues by tracking whenever we get a callback. If that is the case disabling interrupts with event index can be a nop. If not the case disable interrupts. Note: with a split ring there's no explicit "no interrupts" value. For now we write a fixed value so our chance of triggering an interupt is 1/ring size. It's probably better to write something related to the last used index there to reduce the chance even further. For now I'm keeping it simple. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03virtio_net: move txq wakeups under tx q lockMichael S. Tsirkin1-6/+7
We currently check num_free outside tx q lock which is unsafe: new packets can arrive meanwhile and there won't be space in the queue. Thus a spurious queue wakeup causing overhead and even packet drops. Move the check under the lock to fix that. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03virtio_net: move tx vq operation under tx queue lockMichael S. Tsirkin1-1/+21
It's unsafe to operate a vq from multiple threads. Unfortunately this is exactly what we do when invoking clean tx poll from rx napi. Same happens with napi-tx even without the opportunistic cleaning from the receive interrupt: that races with processing the vq in start_xmit. As a fix move everything that deals with the vq to under tx lock. Fixes: b92f1e6751a6 ("virtio-net: transmit napi") Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vdpa/mlx5: Add support for running with virtio_vdpaEli Cohen3-15/+87
In order to support running vdpa using vritio_vdpa driver, we need to create a different kind of MR, one that has 1:1 mapping, since the addresses referring to virtqueues are dma addresses. We create the 1:1 MR in mlx5_vdpa_dev_add() only in case firmware supports the general capability umem_uid_0. The reason for that is that 1:1 MRs must be created with uid == 0 while virtqueue objects can be created with uid == 0 only when the firmware capability is on. If the set_map() callback is called with new translations provided through iotlb, the driver will destroy the 1:1 MR and create a regular one. Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210602085854.62690-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2021-07-03vdp/mlx5: Fix setting the correct dma_deviceEli Cohen2-8/+3
Before SF support was introduced, the DMA device was equal to mdev->device which was in essence equal to pdev->dev. With SF introduction this is no longer true. It has already been handled for vhost_vdpa since the reference to the dma device can from within mlx5_vdpa. With virtio_vdpa this broke. To fix this we set the real dma device when initializing the device. In addition, for the sake of consistency, previous references in the code to the dma device are changed to vdev->dma_dev. Fixes: d13a15d544ce5 ("vdpa/mlx5: Use the correct dma device when registering memory") Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210606053150.170489-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2021-07-03vdpa/mlx5: Support creating resources with uid == 0Eli Cohen1-0/+6
Currently all resources must be created with uid != 0 which is essential when userspace processes are allocating virtquueue resources. Since this is a kernel implementation, it is perfectly legal to open resources with uid == 0. In case firmware supports, avoid allocating user context. Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210531160404.31368-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2021-07-03vdpa/mlx5: Fix possible failure in umem size calculationEli Cohen1-10/+5
umem size is a 32 bit unsigned value so assigning it to an int could cause false failures. Set the calculated value inside the function and modify function name to reflect the fact it updates the size. This bug was found during code review but never had real impact to this date. Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices") Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210530090349.8360-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2021-07-03vdpa/mlx5: Fix umem sizes assignments on VQ createEli Cohen1-2/+2
Fix copy paste bug assigning umem1 size to umem2 and umem3. The issue was discovered when trying to use a 1:1 MR that covers the entire address space where firmware complained that provided sizes are not large enough. 1:1 MRs are required to support virtio_vdpa. Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices") Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210530090317.8284-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
2021-07-03virtio_ring: Fix kernel-docYang Li1-1/+1
Fix function name in virtio_ring.c kernel-doc comment to remove a warning found by clang_w1. drivers/virtio/virtio_ring.c:1903: warning: expecting prototype for virtqueue_get_buf(). Prototype was for virtqueue_get_buf_ctx() instead Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/1621998731-17445-1-git-send-email-yang.lee@linux.alibaba.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vhost: fix up vhost_work coding styleMike Christie1-3/+3
Switch from a mix of tabs and spaces to just tabs. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20210525174733.6212-6-michael.christie@oracle.com Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vhost: fix poll coding styleMike Christie1-6/+6
We use 3 coding styles in this struct. Switch to just tabs. Signed-off-by: Mike Christie <michael.christie@oracle.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210525174733.6212-5-michael.christie@oracle.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vhost-scsi: reduce flushes during endpoint clearingMike Christie1-5/+6
vhost_scsi_flush will flush everything, so we can clear the backends then flush, then destroy. We don't need to flush before each vq destruction because after the flush we will have made sure there can be no new cmds started and there are no running cmds. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20210525174733.6212-4-michael.christie@oracle.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vhost-scsi: remove extra flushesMike Christie1-8/+0
The vhost work flush function was flushing the entire work queue, so there is no need for the double vhost_work_dev_flush calls in vhost_scsi_flush. And we do not need to call vhost_poll_flush for each poller because that call also ends up flushing the same work queue thread the vhost_work_dev_flush call flushed. Signed-off-by: Mike Christie <michael.christie@oracle.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210525174733.6212-3-michael.christie@oracle.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vhost: remove work arg from vhost_work_flushMike Christie4-8/+8
vhost_work_flush doesn't do anything with the work arg. This patch drops it and then renames vhost_work_flush to vhost_work_dev_flush to reflect that the function flushes all the works in the dev and not just a specific queue or work item. Signed-off-by: Mike Christie <michael.christie@oracle.com> Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Link: https://lore.kernel.org/r/20210525174733.6212-2-michael.christie@oracle.com Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03virtio_console: Assure used length from device is limitedXie Yongji1-2/+2
The buf->len might come from an untrusted device. This ensures the value would not exceed the size of the buffer to avoid data corruption or loss. Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210525125622.1203-1-xieyongji@bytedance.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03virtio-blk: limit seg_max to a safe valueStefan Hajnoczi1-1/+7
The struct virtio_blk_config seg_max value is read from the device and incremented by 2 to account for the request header and status byte descriptors added by the driver. In preparation for supporting untrusted virtio-blk devices, protect against integer overflow and limit the value to a safe maximum. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Link: https://lore.kernel.org/r/20210524154020.98195-1-stefanha@redhat.com Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vhost: Remove the repeated declarationShaokun Zhang1-1/+0
Function 'vhost_vring_ioctl' is declared twice, remove the repeated declaration. Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1621857884-19964-1-git-send-email-zhangshaokun@hisilicon.com Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vp_vdpa: correct the return value when fail to map notificationJason Wang1-0/+1
We forget to assign a error value when we fail to map the notification during prove. This patch fixes it. Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 11d8ffed00b23 ("vp_vdpa: switch to use vp_modern_map_vq_notify()") Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210624035939.26618-1-jasowang@redhat.com Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03virtio_net: Fix error handling in virtnet_restore()Xie Yongji1-1/+4
Do some cleanups in virtnet_restore() when virtnet_cpu_notif_add() failed. Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Link: https://lore.kernel.org/r/20210517084516.332-1-xieyongji@bytedance.com Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03virtio-blk: Fix memory leak among suspend/resume procedureXie Yongji1-0/+2
The vblk->vqs should be freed before we call init_vqs() in virtblk_restore(). Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Link: https://lore.kernel.org/r/20210517084332.280-1-xieyongji@bytedance.com Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vDPA/ifcvf: reuse pre-defined macros for device ids and vendor idsZhu Lingshan2-22/+13
This commit would reuse pre-defined macros for ifcvf device ids and vendor ids Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> Link: https://lore.kernel.org/r/20210510081015.4212-3-lingshan.zhu@intel.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vDPA/ifcvf: implement doorbell mapping for ifcvfZhu Lingshan1-0/+16
This commit implements doorbell mapping feature for ifcvf. This feature maps the notify page to userspace, to eliminate vmexit when kick a vq. Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> Link: https://lore.kernel.org/r/20210602084550.289599-3-lingshan.zhu@intel.com Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vDPA/ifcvf: record virtio notify baseZhu Lingshan2-0/+6
This commit records virtio notify base physical addr and calculate doorbell physical address for vqs. Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210602084550.289599-2-lingshan.zhu@intel.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03vdpa_sim_blk: remove duplicate include of linux/blkdev.hWan Jiabing1-1/+0
In commit 7d189f617f83f ("vdpa_sim_blk: implement ramdisk behaviour") linux/blkdev.h was included here causing the duplicate include. Remove the later duplicate include. Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Link: https://lore.kernel.org/r/20210510024307.7143-1-wanjiabing@vivo.com Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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