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2022-05-01xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLEMax Filippov1-0/+1
xtensa kernels successfully build and run with CONFIG_DEBUG_VM_PGTABLE=y, enable arch support for it. Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: add hibernation supportMax Filippov5-0/+129
Define ARCH_HIBERNATION_POSSIBLE in Kconfig and implement hibernation callbacks. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: support coprocessors on SMPMax Filippov11-67/+230
Current coprocessor support on xtensa only works correctly on uniprocessor configurations. Make it work on SMP too and keep it lazy. Make coprocessor_owner array per-CPU and move it to struct exc_table for easy access from the fast_coprocessor exception handler. Allow task to have live coprocessors only on single CPU, record this CPU number in the struct thread_info::cp_owner_cpu. Change struct thread_info::cpenable meaning to be 'coprocessors live on cp_owner_cpu'. Introduce C-level coprocessor exception handler that flushes and releases live coprocessors of the task taking 'coprocessor disabled' exception and call it from the fast_coprocessor handler when the task has live coprocessors on other CPU. Make coprocessor_flush_all and coprocessor_release_all work correctly when called from any CPU by sending IPI to the cp_owner_cpu. Add function coprocessor_flush_release_all to do flush followed by release atomically. Add function local_coprocessors_flush_release_all to flush and release all coprocessors on the local CPU and use it to flush coprocessor contexts from the CPU that goes offline. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: get rid of stack frame in coprocessor_flushMax Filippov1-6/+5
coprocessor_flush is an ordinary function, it can use all registers. Don't reserve stack frame for it and use a7 to preserve a0 around the context saving call. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: merge SAVE_CP_REGS_TAB and LOAD_CP_REGS_TABMax Filippov1-48/+37
Both tables share the same offset field but the different function pointers. Merge them into single table with 3-element entries to reduce code and data duplication. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: add xtensa_xsr macroMax Filippov1-0/+7
xtensa_xsr does the XSR instruction for the specified special register. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: handle coprocessor exceptions in kernel modeMax Filippov1-1/+1
In order to let drivers use xtensa coprocessors on behalf of the calling process the kernel must handle coprocessor exceptions from the kernel mode the same way as from the user mode. This is not sufficient to allow using coprocessors transparently in IRQ or softirq context. Should such users exist they must be aware of the context and do the right thing, e.g. preserve the coprocessor state and resore it after use. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: use callx0 opcode in fast_coprocessorMax Filippov1-10/+8
Instead of emulating call0 in fast_coprocessor use that opcode directly. Use 'ret' instead of 'jx a0'. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: clean up excsave1 initializationMax Filippov2-4/+3
Use xtensa_set_sr instead of inline assembly. Rename local variable exc_table in early_trap_init to avoid conflict with per-CPU variable of the same name. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: clean up declarations in coprocessor.hMax Filippov1-4/+3
Drop 'extern' from all function declarations. Add parameter names in declarations. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: clean up exception handler prototypesMax Filippov3-15/+13
Exception handlers are currently passed as void pointers because they may have one or two parameters. Only two handlers uses the second parameter and it is available in the struct pt_regs anyway. Make all handlers have only one parameter, introduce xtensa_exception_handler type for handlers and use it in trap_set_handler. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: clean up function declarations in traps.cMax Filippov2-32/+32
Drop 'extern' from all function declarations and move those that need to be visible from traps.c to traps.h. Add 'asmlinkage' to declarations of fucntions defined in assembly. Add 'static' to declarations and definitions only used locally. Add argument names in declarations. Drop unused second argument from do_multihit and do_page_fault. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: enable KCSANMax Filippov6-7/+73
Prefix arch-specific barrier macros with '__' to make use of instrumented generic macros. Prefix arch-specific bitops with 'arch_' to make use of instrumented generic functions. Provide stubs for 64-bit atomics when building with KCSAN. Disable KCSAN instrumentation in arch/xtensa/boot. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Marco Elver <elver@google.com>
2022-05-01xtensa: enable HAVE_VIRT_CPU_ACCOUNTING_GENMax Filippov1-0/+1
There's no direct cputime_t manipulation in the xtensa arch code, so generic virt CPU accounting may be enabled. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: enable context trackingMax Filippov2-0/+10
Put user exit context tracking call on the common kernel entry/exit path (function calls are impossible at earlier kernel entry stages because PS.EXCM is not cleared yet). Put user entry context tracking call on the user exit path. Syscalls go through this common code too, so nothing specific needs to be done for them. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: use abi_* register names in the kernel exit codeMax Filippov1-40/+42
Using plain register names is prone to errors when code is changed and new calls are added between the register load and use. Change plain register names to abi_* names in the call-heavy part of the kernel exit code to clearly indicate what's supposed to be preserved and what's not. Re-align code while at it. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: move trace_hardirqs_off call back to entry.SMax Filippov2-15/+15
Context tracking call must be done after hardirq tracking call, otherwise lockdep_assert_irqs_disabled called from rcu_eqs_exit gives a warning. To avoid context tracking logic duplication for IRQ/exception entry paths move trace_hardirqs_off call back to common entry code. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: drop dead code from entry.SMax Filippov1-18/+0
KERNEL_STACK_OVERFLOW_CHECK is incomplete and have never been enabled. Remove it. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: noMMU: allow handling protection faultsMax Filippov4-11/+27
Many xtensa CPU cores without full MMU still have memory protection features capable of raising exceptions for invalid instruction fetches/data access. Allow handling such exceptions. This improves behavior of processes that pass invalid memory pointers to syscalls in noMMU configs: in case of exception the kernel instead of killing the process is now able to return -EINVAL from a syscall. Introduce CONFIG_PFAULT that controls whether protection fault code is enabled and register handlers for common memory protection exceptions when it is enabled. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: extract vmalloc_fault code into a functionMax Filippov1-53/+54
Move full MMU-specific code into a separate function to isolate it from more generic do_page_fault code. No functional changes. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: move asid_cache from fault.c to mmu.cMax Filippov2-1/+2
asid_cache is only useful with full MMU, but fault.c is also useful with MPU. Move asid_cache definition to MMU-specific source file. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: iss: extract and constify network callbacksMax Filippov1-19/+28
Instead of storing pointers to callback functions in the struct iss_net_private::tp move them to struct struct iss_net_ops and store a const pointer to it. Make static const tuntap_ops structure with tuntap callbacks and initialize tp.net_ops with it in the tuntap_probe. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: iss: clean up per-device locking in network driverMax Filippov1-21/+18
Per-device locking in the ISS network driver is used to protect poll timer and stats updates. Stat collection is not protected. Remove per-device locking everywhere except the stats updates. Replace ndo_get_stats callback with ndo_get_stats64 and use proper locking there as well. As a side effect this fixes possible deadlock between iss_net_close and iss_net_timer. Reported by: Duoming Zhou <duoming@zju.edu.cn> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: iss: replace iss_net_set_mac with eth_mac_addrMax Filippov1-14/+1
iss_net_set_mac is just a copy of eth_mac_addr with pointless locking. Drop this function and replace it with eth_mac_addr. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: iss: drop opened_list logic from the network driverMax Filippov1-39/+14
opened_list is used to poll all opened devices in the timer callback, but there's individual timer that is associated with each device. Drop opened_list and only poll the device that is associated with the timer in the timer callback. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01xtensa: localize labels used in memmoveMax Filippov1-10/+10
Internal labels in the memmove implementation don't need to be visible, localize them by prefixing their names with '.L'. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-01Merge tag 'v5.18-rc5' into develLinus Walleij228-1258/+1500
Merge in Linux 5.18-rc5 since new code to the STM32 driver depend in a non-trivial way on the fixes merged in -rc5. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-05-01x86/apic: Do apic driver probe for "nosmp" use caseKuppuswamy Sathyanarayanan1-3/+2
For the "nosmp" use case, the APIC initialization code selects "APIC_SYMMETRIC_IO_NO_ROUTING" as the default interrupt mode and avoids probing APIC drivers. This works well for the default APIC modes, but for the x2APIC case the probe function is required to allocate the cluster_hotplug mask. So in the APIC_SYMMETRIC_IO_NO_ROUTING case when the x2APIC is initialized it dereferences a NULL pointer and the kernel crashes. This was observed on a TDX platform where x2APIC is enabled and "nosmp" command line option is allowed. To fix this issue, probe APIC drivers via default_setup_apic_routing() for the APIC_SYMMETRIC_IO_NO_ROUTING interrupt mode too. Suggested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Tony Luck <tony.luck@intel.com> Link: https://lore.kernel.org/r/a64f864e1114bcd63593286aaf61142cfce384ea.1650076869.git.sathyanarayanan.kuppuswamy@intel.com
2022-05-01Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds15-53/+186
Pull kvm fixes from Paolo Bonzini: "ARM: - Take care of faults occuring between the PARange and IPA range by injecting an exception - Fix S2 faults taken from a host EL0 in protected mode - Work around Oops caused by a PMU access from a 32bit guest when PMU has been created. This is a temporary bodge until we fix it for good. x86: - Fix potential races when walking host page table - Fix shadow page table leak when KVM runs nested - Work around bug in userspace when KVM synthesizes leaf 0x80000021 on older (pre-EPYC) or Intel processors Generic (but affects only RISC-V): - Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: work around QEMU issue with synthetic CPUID leaves Revert "x86/mm: Introduce lookup_address_in_mm()" KVM: x86/mmu: fix potential races when walking host page table KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT KVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR KVM: arm64: Inject exception on out-of-IPA-range translation fault KVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set KVM: arm64: Handle host stage-2 faults from 32-bit EL0
2022-05-01Merge tag 'x86_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds13-11/+38
Pull x86 fixes from Borislav Petkov: - A fix to disable PCI/MSI[-X] masking for XEN_HVM guests as that is solely controlled by the hypervisor - A build fix to make the function prototype (__warn()) as visible as the definition itself - A bunch of objtool annotation fixes which have accumulated over time - An ORC unwinder fix to handle bad input gracefully - Well, we thought the microcode gets loaded in time in order to restore the microcode-emulated MSRs but we thought wrong. So there's a fix for that to have the ordering done properly - Add new Intel model numbers - A spelling fix * tag 'x86_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pci/xen: Disable PCI/MSI[-X] masking for XEN_HVM guests bug: Have __warn() prototype defined unconditionally x86/Kconfig: fix the spelling of 'becoming' in X86_KERNEL_IBT config objtool: Use offstr() to print address of missing ENDBR objtool: Print data address for "!ENDBR" data warnings x86/xen: Add ANNOTATE_NOENDBR to startup_xen() x86/uaccess: Add ENDBR to __put_user_nocheck*() x86/retpoline: Add ANNOTATE_NOENDBR for retpolines x86/static_call: Add ANNOTATE_NOENDBR to static call trampoline objtool: Enable unreachable warnings for CLANG LTO x86,objtool: Explicitly mark idtentry_body()s tail REACHABLE x86,objtool: Mark cpu_startup_entry() __noreturn x86,xen,objtool: Add UNWIND hint lib/strn*,objtool: Enforce user_access_begin() rules MAINTAINERS: Add x86 unwinding entry x86/unwind/orc: Recheck address range after stack info was updated x86/cpu: Load microcode during restore_processor_state() x86/cpu: Add new Alderlake and Raptorlake CPU model numbers
2022-05-01Merge tag 'objtool_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-35/+52
Pull objtool fixes from Borislav Petkov: "A bunch of objtool fixes to improve unwinding, sibling call detection, fallthrough detection and relocation handling of weak symbols when the toolchain strips section symbols" * tag 'objtool_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Fix code relocs vs weak symbols objtool: Fix type of reloc::addend objtool: Fix function fallthrough detection for vmlinux objtool: Fix sibling call detection in alternatives objtool: Don't set 'jump_dest' for sibling calls x86/uaccess: Don't jump between functions
2022-05-01arm64: dts: rockchip: add dts for Firefly Station M2 rk3566Furkan Kardame2-0/+580
Add dts for Firefly Station M2. Working IO: * UART * LED * LAN * Wifi * SD Card * eMMC * USB2 Signed-off-by: Furkan Kardame <f.kardame@manjaro.org> Signed-off-by: Peter Geis <pgwipeout@gmail.com> Link: https://lore.kernel.org/r/20220429115252.2360496-8-pgwipeout@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-01arm64: dts: rockchip: add SoQuartz CM4IO dtsPeter Geis3-0/+794
This is the initial SoQuartz SoM device tree on a CM4IO carrier board. This board outputs debug on uart2 and supports the following components: Gigabit Ethernet USB2 (OTG/Host shared) PCIe 2.0 x1 HDMI (HDMI Port 0) eDP (HDMI Port 1) DSI (RPi compatible pinout) CSI (RPi compatible pinout) A/B/G/N WiFi Bluetooth SDMMC eMMC SPI NOR Flash (Not placed) PI-40 compatible pin header Signed-off-by: Peter Geis <pgwipeout@gmail.com> Link: https://lore.kernel.org/r/20220429115252.2360496-7-pgwipeout@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-01arm64: dts: rockchip: add Pine64 Quartz64-B device treePeter Geis2-0/+616
Add a device tree for the Pine64 Quartz64 Model B single board computer. This board ouputs debug on uart2 and supports the following components: Gigabit Ethernet USB2 x2 (one port otg capable) USB3 PCIe/SATA M2 HDMI DSI (RPi compatible pinout) CSI (RPi compatible pinout) A/B/G/N WiFi Bluetooth SDMMC eMMC SPI Flash PI-40 compatible pin header Signed-off-by: Peter Geis <pgwipeout@gmail.com> Link: https://lore.kernel.org/r/20220429115252.2360496-6-pgwipeout@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-30arm64: dts: juno: Drop useless 'dma-channels/requests' propertiesKrzysztof Kozlowski1-2/+0
The pl330 DMA controller provides number of DMA channels and requests through its registers, so duplicating this information (with a chance of mistakes) in DTS is pointless. Additionally the DTS used always wrong property names which causes DT schema check failures - the bindings documented 'dma-channels' and 'dma-requests' properties without leading hash sign. Another reason is that the number of requests also does not seem right (should be 8). Link: https://lore.kernel.org/r/20220430121902.59895-5-krzysztof.kozlowski@linaro.org Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2022-04-30arm64: dts: rockchip: enable usb hub on the radxa rock3 model aMichael Riesch1-0/+14
One USB 2.0 host port on the Radxa ROCK3 Model A is connected to the SoC via a hub. Introduce a voltage regulator to enable this USB hub. Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net> Link: https://lore.kernel.org/r/20220425133502.405512-3-michael.riesch@wolfvision.net Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-30arm64: dts: rockchip: add usb3 support to the radxa rock3 model aMichael Riesch1-0/+46
The Radxa ROCK3 Model A features one USB 3.0 host port and one USB 3.0 OTG/DRD port. Enable them in the device tree. Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net> Link: https://lore.kernel.org/r/20220425133502.405512-2-michael.riesch@wolfvision.net Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-30arm64: dts: rockchip: add rk356x sfc supportPeter Geis1-0/+11
Add the sfc node to the rk356x device tree. This enables spi flash support for this soc. Signed-off-by: Peter Geis <pgwipeout@gmail.com> Link: https://lore.kernel.org/r/20220429115252.2360496-5-pgwipeout@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-30arm64: dts: rockchip: Add USB and TCPC to rk3566-pinenoteSamuel Holland1-0/+58
PineNote has a USB Type-C port connected to the first USB 2.0 OTG PHY and XHCI controller via a Willsemi WUSB3801 Type-C port controller. Add support for it. Signed-off-by: Samuel Holland <samuel@sholland.org> Link: https://lore.kernel.org/r/20220413035614.31045-3-samuel@sholland.org Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-30arm64: dts: rockchip: Add accelerometer to rk3566-pinenoteSamuel Holland1-0/+22
PineNote has an SC7A20 accelerometer connected via I2C. Enable it. Signed-off-by: Samuel Holland <samuel@sholland.org> Link: https://lore.kernel.org/r/20220413035614.31045-2-samuel@sholland.org Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-30arm64: dts: rockchip: add an input enable pinconf to rk3399Caleb Connolly1-0/+16
Add a pinconf to configure pins as input-enable. Signed-off-by: Caleb Connolly <kc@postmarketos.org> Link: https://lore.kernel.org/r/20220328005005.72492-5-kc@postmarketos.org Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-30arm64: dts: rockchip: Add vdec support for RK3328Christopher Obbard1-1/+19
The RK3328 has an vdec device with dedicated iommu. Describe the vdec device, the required power-domains and enable the iommu in the devicetree. Signed-off-by: Christopher Obbard <chris.obbard@collabora.com> Link: https://lore.kernel.org/r/20220425184510.1138446-4-chris.obbard@collabora.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-30arm64: dts: rockchip: Rename vdec_mmu node for RK3328Christopher Obbard1-1/+1
All other rockchip devices which have vdec nodes do not have an rk prefix. Remove the prefix from the (currently unused) rkvdec_mmu node for consistency with other devices. Signed-off-by: Christopher Obbard <chris.obbard@collabora.com> Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Link: https://lore.kernel.org/r/20220425184510.1138446-3-chris.obbard@collabora.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-04-29Merge tag 'soc-fixes-5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds59-208/+235
Pull ARM SoC fixes from Arnd Bergmann: - A fix for a regression caused by the previous set of bugfixes changing tegra and at91 pinctrl properties. More work is needed to figure out what this should actually be, but a revert makes it work for the moment. - Defconfig regression fixes for tegra after renamed symbols - Build-time warning and static checker fixes for imx, op-tee, sunxi, meson, at91, and omap - More at91 DT fixes for audio, regulator and spi nodes - A regression fix for Renesas Hyperflash memory probe - A stability fix for amlogic boards, modifying the allowed cpufreq states - Multiple fixes for system suspend on omap2+ - DT fixes for various i.MX bugs - A probe error fix for imx6ull-colibri MMC - A MAINTAINERS file entry for samsung bug reports * tag 'soc-fixes-5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (42 commits) Revert "arm: dts: at91: Fix boolean properties with values" bus: sunxi-rsb: Fix the return value of sunxi_rsb_device_create() Revert "arm64: dts: tegra: Fix boolean properties with values" arm64: dts: imx8mn-ddr4-evk: Describe the 32.768 kHz PMIC clock ARM: dts: imx6ull-colibri: fix vqmmc regulator MAINTAINERS: add Bug entry for Samsung and memory controller drivers memory: renesas-rpc-if: Fix HF/OSPI data transfer in Manual Mode ARM: dts: logicpd-som-lv: Fix wrong pinmuxing on OMAP35 ARM: dts: am3517-evm: Fix misc pinmuxing ARM: dts: am33xx-l4: Add missing touchscreen clock properties ARM: dts: Fix mmc order for omap3-gta04 ARM: dts: at91: fix pinctrl phandles ARM: dts: at91: sama5d4_xplained: fix pinctrl phandle name ARM: dts: at91: Describe regulators on at91sam9g20ek ARM: dts: at91: Map MCLK for wm8731 on at91sam9g20ek ARM: dts: at91: Fix boolean properties with values ARM: dts: at91: use generic node name for dataflash ARM: dts: at91: align SPI NOR node name with dtschema ARM: dts: at91: sama7g5ek: Align the impedance of the QSPI0's HSIO and PCB lines ARM: dts: at91: sama7g5ek: enable pull-up on flexcom3 console lines ...
2022-04-29Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds3-8/+20
Pull clk fixes from Stephen Boyd: "A semi-large pile of clk driver fixes this time around. Nothing is touching the core so these fixes are fairly well contained to specific devices that use these clk drivers. - Some Allwinner SoC fixes to gracefully handle errors and mark an RTC clk as critical so that the RTC keeps ticking. - Fix AXI bus clks and RTC clk design for Microchip PolarFire SoC driver introduced this cycle. This has some devicetree bits acked by riscv maintainers. We're fixing it now so that the prior bindings aren't released in a major kernel version. - Remove a reset on Microchip PolarFire SoCs that broke when enabling CONFIG_PM. - Set a min/max for the Qualcomm graphics clk. This got broken by the clk rate range patches introduced this cycle" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: sunxi: sun9i-mmc: check return value after calling platform_get_resource() clk: sunxi-ng: sun6i-rtc: Mark rtc-32k as critical riscv: dts: microchip: reparent mpfs clocks clk: microchip: mpfs: add RTCREF clock control clk: microchip: mpfs: re-parent the configurable clocks dt-bindings: rtc: add refclk to mpfs-rtc dt-bindings: clk: mpfs: add defines for two new clocks dt-bindings: clk: mpfs document msspll dri registers riscv: dts: microchip: fix usage of fic clocks on mpfs clk: microchip: mpfs: mark CLK_ATHENA as critical clk: microchip: mpfs: fix parents for FIC clocks clk: qcom: clk-rcg2: fix gfx3d frequency calculation clk: microchip: mpfs: don't reset disabled peripherals clk: sunxi-ng: fix not NULL terminated coccicheck error
2022-04-29net: unexport csum_and_copy_{from,to}_userChristoph Hellwig4-7/+0
csum_and_copy_from_user and csum_and_copy_to_user are exported by a few architectures, but not actually used in modular code. Drop the exports. Link: https://lkml.kernel.org/r/20220421070440.1282704-1-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-04-29vmcore: convert read_from_oldmem() to take an iov_iterMatthew Wilcox (Oracle)1-1/+6
Remove the read_from_oldmem() wrapper introduced earlier and convert all the remaining callers to pass an iov_iter. Link: https://lkml.kernel.org/r/20220408090636.560886-4-bhe@redhat.com Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Tiezhu Yang <yangtiezhu@loongson.cn> Cc: Amit Daniel Kachhap <amit.kachhap@arm.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-04-29vmcore: convert copy_oldmem_page() to take an iov_iterMatthew Wilcox (Oracle)10-235/+53
Patch series "Convert vmcore to use an iov_iter", v5. For some reason several people have been sending bad patches to fix compiler warnings in vmcore recently. Here's how it should be done. Compile-tested only on x86. As noted in the first patch, s390 should take this conversion a bit further, but I'm not inclined to do that work myself. This patch (of 3): Instead of passing in a 'buf' and 'userbuf' argument, pass in an iov_iter. s390 needs more work to pass the iov_iter down further, or refactor, but I'd be more comfortable if someone who can test on s390 did that work. It's more convenient to convert the whole of read_from_oldmem() to take an iov_iter at the same time, so rename it to read_from_oldmem_iter() and add a temporary read_from_oldmem() wrapper that creates an iov_iter. Link: https://lkml.kernel.org/r/20220408090636.560886-1-bhe@redhat.com Link: https://lkml.kernel.org/r/20220408090636.560886-2-bhe@redhat.com Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-04-29mm: use for_each_online_node and node_online instead of open codingPeng Liu1-1/+1
Use more generic functions to deal with issues related to online nodes. The changes will make the code simplified. Link: https://lkml.kernel.org/r/20220429030218.644635-1-liupeng256@huawei.com Signed-off-by: Peng Liu <liupeng256@huawei.com> Suggested-by: Davidlohr Bueso <dave@stgolabs.net> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-04-29Revert "arm: dts: at91: Fix boolean properties with values"Arnd Bergmann2-2/+2
This reverts commit 0dc23d1a8e17, which caused another regression as the pinctrl code actually expects an integer value of 0 or 1 rather than a simple boolean property. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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