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2022-01-23Merge tag 'bitmap-5.17-rc1' of git://github.com/norov/linuxLinus Torvalds2-2/+0
Pull bitmap updates from Yury Norov: - introduce for_each_set_bitrange() - use find_first_*_bit() instead of find_next_*_bit() where possible - unify for_each_bit() macros * tag 'bitmap-5.17-rc1' of git://github.com/norov/linux: vsprintf: rework bitmap_list_string lib: bitmap: add performance test for bitmap_print_to_pagebuf bitmap: unify find_bit operations mm/percpu: micro-optimize pcpu_is_populated() Replace for_each_*_bit_from() with for_each_*_bit() where appropriate find: micro-optimize for_each_{set,clear}_bit() include/linux: move for_each_bit() macros from bitops.h to find.h cpumask: replace cpumask_next_* with cpumask_first_* where appropriate tools: sync tools/bitmap with mother linux all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate cpumask: use find_first_and_bit() lib: add find_first_and_bit() arch: remove GENERIC_FIND_FIRST_BIT entirely include: move find.h from asm_generic to linux bitops: move find_bit_*_le functions from le.h to find.h bitops: protect find_first_{,zero}_bit properly
2022-01-22Merge tag 'arm64-fixes' of ↵Linus Torvalds3-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes/cleanups from Catalin Marinas: "Some fixes that turned up during the merge window: - Add brackets to the io_stop_wc macro - Avoid -Warray-bounds warning with the LSE atomics inline asm - Apply __ro_after_init to memory_limit" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: mm: apply __ro_after_init to memory_limit arm64: atomics: lse: Dereference matching size asm-generic: Add missing brackets for io_stop_wc macro
2022-01-20arm64: mm: apply __ro_after_init to memory_limitPeng Fan1-1/+1
This variable is only set during initialization, so mark with __ro_after_init. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20211215064559.2843555-1-peng.fan@oss.nxp.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-01-20arm64: atomics: lse: Dereference matching sizeKees Cook2-2/+2
When building with -Warray-bounds, the following warning is generated: In file included from ./arch/arm64/include/asm/lse.h:16, from ./arch/arm64/include/asm/cmpxchg.h:14, from ./arch/arm64/include/asm/atomic.h:16, from ./include/linux/atomic.h:7, from ./include/asm-generic/bitops/atomic.h:5, from ./arch/arm64/include/asm/bitops.h:25, from ./include/linux/bitops.h:33, from ./include/linux/kernel.h:22, from kernel/printk/printk.c:22: ./arch/arm64/include/asm/atomic_lse.h:247:9: warning: array subscript 'long unsigned int[0]' is partly outside array bounds of 'atomic_t[1]' [-Warray-bounds] 247 | asm volatile( \ | ^~~ ./arch/arm64/include/asm/atomic_lse.h:266:1: note: in expansion of macro '__CMPXCHG_CASE' 266 | __CMPXCHG_CASE(w, , acq_, 32, a, "memory") | ^~~~~~~~~~~~~~ kernel/printk/printk.c:3606:17: note: while referencing 'printk_cpulock_owner' 3606 | static atomic_t printk_cpulock_owner = ATOMIC_INIT(-1); | ^~~~~~~~~~~~~~~~~~~~ This is due to the compiler seeing an unsigned long * cast against something (atomic_t) that is int sized. Replace the cast with the matching size cast. This results in no change in binary output. Note that __ll_sc__cmpxchg_case_##name##sz already uses the same constraint: [v] "+Q" (*(u##sz *)ptr Which is why only the LSE form needs updating and not the LL/SC form, so this change is unlikely to be problematic. Cc: Will Deacon <will@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Acked-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220112202259.3950286-1-keescook@chromium.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-01-20Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-16/+4
Merge more updates from Andrew Morton: "55 patches. Subsystems affected by this patch series: percpu, procfs, sysctl, misc, core-kernel, get_maintainer, lib, checkpatch, binfmt, nilfs2, hfs, fat, adfs, panic, delayacct, kconfig, kcov, and ubsan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (55 commits) lib: remove redundant assignment to variable ret ubsan: remove CONFIG_UBSAN_OBJECT_SIZE kcov: fix generic Kconfig dependencies if ARCH_WANTS_NO_INSTR lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB btrfs: use generic Kconfig option for 256kB page size limit arch/Kconfig: split PAGE_SIZE_LESS_THAN_256KB from PAGE_SIZE_LESS_THAN_64KB configs: introduce debug.config for CI-like setup delayacct: track delays from memory compact Documentation/accounting/delay-accounting.rst: add thrashing page cache and direct compact delayacct: cleanup flags in struct task_delay_info and functions use it delayacct: fix incomplete disable operation when switch enable to disable delayacct: support swapin delay accounting for swapping without blkio panic: remove oops_id panic: use error_report_end tracepoint on warnings fs/adfs: remove unneeded variable make code cleaner FAT: use io_schedule_timeout() instead of congestion_wait() hfsplus: use struct_group_attr() for memcpy() region nilfs2: remove redundant pointer sbufs fs/binfmt_elf: use PT_LOAD p_align values for static PIE const_structs.checkpatch: add frequently used ops structs ...
2022-01-20mm: percpu: generalize percpu related configKefeng Wang1-16/+4
Patch series "mm: percpu: Cleanup percpu first chunk function". When supporting page mapping percpu first chunk allocator on arm64, we found there are lots of duplicated codes in percpu embed/page first chunk allocator. This patchset is aimed to cleanup them and should no function change. The currently supported status about 'embed' and 'page' in Archs shows below, embed: NEED_PER_CPU_PAGE_FIRST_CHUNK page: NEED_PER_CPU_EMBED_FIRST_CHUNK embed page ------------------------ arm64 Y Y mips Y N powerpc Y Y riscv Y N sparc Y Y x86 Y Y ------------------------ There are two interfaces about percpu first chunk allocator, extern int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size, size_t atom_size, pcpu_fc_cpu_distance_fn_t cpu_distance_fn, - pcpu_fc_alloc_fn_t alloc_fn, - pcpu_fc_free_fn_t free_fn); + pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn); extern int __init pcpu_page_first_chunk(size_t reserved_size, - pcpu_fc_alloc_fn_t alloc_fn, - pcpu_fc_free_fn_t free_fn, - pcpu_fc_populate_pte_fn_t populate_pte_fn); + pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn); The pcpu_fc_alloc_fn_t/pcpu_fc_free_fn_t is killed, we provide generic pcpu_fc_alloc() and pcpu_fc_free() function, which are called in the pcpu_embed/page_first_chunk(). 1) For pcpu_embed_first_chunk(), pcpu_fc_cpu_to_node_fn_t is needed to be provided when archs supported NUMA. 2) For pcpu_page_first_chunk(), the pcpu_fc_populate_pte_fn_t is killed too, a generic pcpu_populate_pte() which marked '__weak' is provided, if you need a different function to populate pte on the arch(like x86), please provide its own implementation. [1] https://github.com/kevin78/linux.git percpu-cleanup This patch (of 4): The HAVE_SETUP_PER_CPU_AREA/NEED_PER_CPU_EMBED_FIRST_CHUNK/ NEED_PER_CPU_PAGE_FIRST_CHUNK/USE_PERCPU_NUMA_NODE_ID configs, which have duplicate definitions on platforms that subscribe it. Move them into mm, drop these redundant definitions and instead just select it on applicable platforms. Link: https://lkml.kernel.org/r/20211216112359.103822-1-wangkefeng.wang@huawei.com Link: https://lkml.kernel.org/r/20211216112359.103822-2-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64] Cc: Will Deacon <will@kernel.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Christoph Lameter <cl@linux.com> Cc: Dennis Zhou <dennis@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-17Merge branch 'signal-for-v5.17' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull signal/exit/ptrace updates from Eric Biederman: "This set of changes deletes some dead code, makes a lot of cleanups which hopefully make the code easier to follow, and fixes bugs found along the way. The end-game which I have not yet reached yet is for fatal signals that generate coredumps to be short-circuit deliverable from complete_signal, for force_siginfo_to_task not to require changing userspace configured signal delivery state, and for the ptrace stops to always happen in locations where we can guarantee on all architectures that the all of the registers are saved and available on the stack. Removal of profile_task_ext, profile_munmap, and profile_handoff_task are the big successes for dead code removal this round. A bunch of small bug fixes are included, as most of the issues reported were small enough that they would not affect bisection so I simply added the fixes and did not fold the fixes into the changes they were fixing. There was a bug that broke coredumps piped to systemd-coredump. I dropped the change that caused that bug and replaced it entirely with something much more restrained. Unfortunately that required some rebasing. Some successes after this set of changes: There are few enough calls to do_exit to audit in a reasonable amount of time. The lifetime of struct kthread now matches the lifetime of struct task, and the pointer to struct kthread is no longer stored in set_child_tid. The flag SIGNAL_GROUP_COREDUMP is removed. The field group_exit_task is removed. Issues where task->exit_code was examined with signal->group_exit_code should been examined were fixed. There are several loosely related changes included because I am cleaning up and if I don't include them they will probably get lost. The original postings of these changes can be found at: https://lkml.kernel.org/r/87a6ha4zsd.fsf@email.froward.int.ebiederm.org https://lkml.kernel.org/r/87bl1kunjj.fsf@email.froward.int.ebiederm.org https://lkml.kernel.org/r/87r19opkx1.fsf_-_@email.froward.int.ebiederm.org I trimmed back the last set of changes to only the obviously correct once. Simply because there was less time for review than I had hoped" * 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (44 commits) ptrace/m68k: Stop open coding ptrace_report_syscall ptrace: Remove unused regs argument from ptrace_report_syscall ptrace: Remove second setting of PT_SEIZED in ptrace_attach taskstats: Cleanup the use of task->exit_code exit: Use the correct exit_code in /proc/<pid>/stat exit: Fix the exit_code for wait_task_zombie exit: Coredumps reach do_group_exit exit: Remove profile_handoff_task exit: Remove profile_task_exit & profile_munmap signal: clean up kernel-doc comments signal: Remove the helper signal_group_exit signal: Rename group_exit_task group_exec_task coredump: Stop setting signal->group_exit_task signal: Remove SIGNAL_GROUP_COREDUMP signal: During coredumps set SIGNAL_GROUP_EXIT in zap_process signal: Make coredump handling explicit in complete_signal signal: Have prepare_signal detect coredumps using signal->core_state signal: Have the oom killer detect coredumps using signal->core_state exit: Move force_uaccess back into do_exit exit: Guarantee make_task_dead leaks the tsk when calling do_task_exit ...
2022-01-16Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds48-416/+1063
Pull kvm updates from Paolo Bonzini: "RISCV: - Use common KVM implementation of MMU memory caches - SBI v0.2 support for Guest - Initial KVM selftests support - Fix to avoid spurious virtual interrupts after clearing hideleg CSR - Update email address for Anup and Atish ARM: - Simplification of the 'vcpu first run' by integrating it into KVM's 'pid change' flow - Refactoring of the FP and SVE state tracking, also leading to a simpler state and less shared data between EL1 and EL2 in the nVHE case - Tidy up the header file usage for the nvhe hyp object - New HYP unsharing mechanism, finally allowing pages to be unmapped from the Stage-1 EL2 page-tables - Various pKVM cleanups around refcounting and sharing - A couple of vgic fixes for bugs that would trigger once the vcpu xarray rework is merged, but not sooner - Add minimal support for ARMv8.7's PMU extension - Rework kvm_pgtable initialisation ahead of the NV work - New selftest for IRQ injection - Teach selftests about the lack of default IPA space and page sizes - Expand sysreg selftest to deal with Pointer Authentication - The usual bunch of cleanups and doc update s390: - fix sigp sense/start/stop/inconsistency - cleanups x86: - Clean up some function prototypes more - improved gfn_to_pfn_cache with proper invalidation, used by Xen emulation - add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery - completely remove potential TOC/TOU races in nested SVM consistency checks - update some PMCs on emulated instructions - Intel AMX support (joint work between Thomas and Intel) - large MMU cleanups - module parameter to disable PMU virtualization - cleanup register cache - first part of halt handling cleanups - Hyper-V enlightened MSR bitmap support for nested hypervisors Generic: - clean up Makefiles - introduce CONFIG_HAVE_KVM_DIRTY_RING - optimize memslot lookup using a tree - optimize vCPU array usage by converting to xarray" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (268 commits) x86/fpu: Fix inline prefix warnings selftest: kvm: Add amx selftest selftest: kvm: Move struct kvm_x86_state to header selftest: kvm: Reorder vcpu_load_state steps for AMX kvm: x86: Disable interception for IA32_XFD on demand x86/fpu: Provide fpu_sync_guest_vmexit_xfd_state() kvm: selftests: Add support for KVM_CAP_XSAVE2 kvm: x86: Add support for getting/setting expanded xstate buffer x86/fpu: Add uabi_size to guest_fpu kvm: x86: Add CPUID support for Intel AMX kvm: x86: Add XCR0 support for Intel AMX kvm: x86: Disable RDMSR interception of IA32_XFD_ERR kvm: x86: Emulate IA32_XFD_ERR for guest kvm: x86: Intercept #NM for saving IA32_XFD_ERR x86/fpu: Prepare xfd_err in struct fpu_guest kvm: x86: Add emulation for IA32_XFD x86/fpu: Provide fpu_update_guest_xfd() for IA32_XFD emulation kvm: x86: Enable dynamic xfeatures at KVM_SET_CPUID2 x86/fpu: Provide fpu_enable_guest_xfd_features() for KVM x86/fpu: Add guest support to xfd_enable_feature() ...
2022-01-16Merge tag 'pci-v5.17-changes' of ↵Linus Torvalds1-0/+9
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Use pci_find_vsec_capability() instead of open-coding it (Andy Shevchenko) - Convert pci_dev_present() stub from macro to static inline to avoid 'unused variable' errors (Hans de Goede) - Convert sysfs slot attributes from default_attrs to default_groups (Greg Kroah-Hartman) - Use DWORD accesses for LTR, L1 SS to avoid BayHub OZ711LV2 erratum (Rajat Jain) - Remove unnecessary initialization of static variables (Longji Guo) Resource management: - Always write Intel I210 ROM BAR on update to work around device defect (Bjorn Helgaas) PCIe native device hotplug: - Fix pciehp lockdep errors on Thunderbolt undock (Hans de Goede) - Fix infinite loop in pciehp IRQ handler on power fault (Lukas Wunner) Power management: - Convert amd64-agp, sis-agp, via-agp from legacy PCI power management to generic power management (Vaibhav Gupta) IOMMU: - Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller so it can work with an IOMMU (Yifeng Li) Error handling: - Add PCI_ERROR_RESPONSE and related definitions for signaling and checking for transaction errors on PCI (Naveen Naidu) - Fabricate PCI_ERROR_RESPONSE data (~0) in config read wrappers, instead of in host controller drivers, when transactions fail on PCI (Naveen Naidu) - Use PCI_POSSIBLE_ERROR() to check for possible failure of config reads (Naveen Naidu) Peer-to-peer DMA: - Add Logan Gunthorpe as P2PDMA maintainer (Bjorn Helgaas) ASPM: - Calculate link L0s and L1 exit latencies when needed instead of caching them (Saheed O. Bolarinwa) - Calculate device L0s and L1 acceptable exit latencies when needed instead of caching them (Saheed O. Bolarinwa) - Remove struct aspm_latency since it's no longer needed (Saheed O. Bolarinwa) APM X-Gene PCIe controller driver: - Fix IB window setup, which was broken by the fact that IB resources are now sorted in address order instead of DT dma-ranges order (Rob Herring) Apple PCIe controller driver: - Enable clock gating to save power (Hector Martin) - Fix REFCLK1 enable/poll logic (Hector Martin) Broadcom STB PCIe controller driver: - Declare bitmap correctly for use by bitmap interfaces (Christophe JAILLET) - Clean up computation of legacy and non-legacy MSI bitmasks (Florian Fainelli) - Update suspend/resume/remove error handling to warn about errors and not fail the operation (Jim Quinlan) - Correct the "pcie" and "msi" interrupt descriptions in DT binding (Jim Quinlan) - Add DT bindings for endpoint voltage regulators (Jim Quinlan) - Split brcm_pcie_setup() into two functions (Jim Quinlan) - Add mechanism for turning on voltage regulators for connected devices (Jim Quinlan) - Turn voltage regulators for connected devices on/off when bus is added or removed (Jim Quinlan) - When suspending, don't turn off voltage regulators for wakeup devices (Jim Quinlan) Freescale i.MX6 PCIe controller driver: - Add i.MX8MM support (Richard Zhu) Freescale Layerscape PCIe controller driver: - Use DWC common ops instead of layerscape-specific link-up functions (Hou Zhiqiang) Intel VMD host bridge driver: - Honor platform ACPI _OSC feature negotiation for Root Ports below VMD (Kai-Heng Feng) - Add support for Raptor Lake SKUs (Karthik L Gopalakrishnan) - Reset everything below VMD before enumerating to work around failure to enumerate NVMe devices when guest OS reboots (Nirmal Patel) Bridge emulation (used by Marvell Aardvark and MVEBU): - Make emulated ROM BAR read-only by default (Pali Rohár) - Make some emulated legacy PCI bits read-only for PCIe devices (Pali Rohár) - Update reserved bits in emulated PCIe Capability (Pali Rohár) - Allow drivers to emulate different PCIe Capability versions (Pali Rohár) - Set emulated Capabilities List bit for all PCIe devices, since they must have at least a PCIe Capability (Pali Rohár) Marvell Aardvark PCIe controller driver: - Add bridge emulation definitions for PCIe DEVCAP2, DEVCTL2, DEVSTA2, LNKCAP2, LNKCTL2, LNKSTA2, SLTCAP2, SLTCTL2, SLTSTA2 (Pali Rohár) - Add aardvark support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 registers (Pali Rohár) - Clear all MSIs at setup to avoid spurious interrupts (Pali Rohár) - Disable bus mastering when unbinding host controller driver (Pali Rohár) - Mask all interrupts when unbinding host controller driver (Pali Rohár) - Fix memory leak in host controller unbind (Pali Rohár) - Assert PERST# when unbinding host controller driver (Pali Rohár) - Disable link training when unbinding host controller driver (Pali Rohár) - Disable common PHY when unbinding host controller driver (Pali Rohár) - Fix resource type checking to check only IORESOURCE_MEM, not IORESOURCE_MEM_64, which is a flavor of IORESOURCE_MEM (Pali Rohár) Marvell MVEBU PCIe controller driver: - Implement pci_remap_iospace() for ARM so mvebu can use devm_pci_remap_iospace() instead of the previous ARM-specific pci_ioremap_io() interface (Pali Rohár) - Use the standard pci_host_probe() instead of the device-specific mvebu_pci_host_probe() (Pali Rohár) - Replace all uses of ARM-specific pci_ioremap_io() with the ARM implementation of the standard pci_remap_iospace() interface and remove pci_ioremap_io() (Pali Rohár) - Skip initializing invalid Root Ports (Pali Rohár) - Check for errors from pci_bridge_emul_init() (Pali Rohár) - Ignore any bridges at non-zero function numbers (Pali Rohár) - Return ~0 data for invalid config read size (Pali Rohár) - Disallow mapping interrupts on emulated bridges (Pali Rohár) - Clear Root Port Memory & I/O Space Enable and Bus Master Enable at initialization (Pali Rohár) - Make type bits in Root Port I/O Base register read-only (Pali Rohár) - Disable Root Port windows when base/limit set to invalid values (Pali Rohár) - Set controller to Root Complex mode (Pali Rohár) - Set Root Port Class Code to PCI Bridge (Pali Rohár) - Update emulated Root Port secondary bus numbers to better reflect the actual topology (Pali Rohár) - Add PCI_BRIDGE_CTL_BUS_RESET support to emulated Root Ports so pci_reset_secondary_bus() can reset connected devices (Pali Rohár) - Add PCI_EXP_DEVCTL Error Reporting Enable support to emulated Root Ports (Pali Rohár) - Add PCI_EXP_RTSTA PME Status bit support to emulated Root Ports (Pali Rohár) - Add DEVCAP2, DEVCTL2 and LNKCTL2 support to emulated Root Ports on Armada XP and newer devices (Pali Rohár) - Export mvebu-mbus.c symbols to allow pci-mvebu.c to be a module (Pali Rohár) - Add support for compiling as a module (Pali Rohár) MediaTek PCIe controller driver: - Assert PERST# for 100ms to allow power and clock to stabilize (qizhong cheng) MediaTek PCIe Gen3 controller driver: - Disable Mediatek DVFSRC voltage request since lack of DVFSRC to respond to the request causes failure to exit L1 PM Substate (Jianjun Wang) MediaTek MT7621 PCIe controller driver: - Declare mt7621_pci_ops static (Sergio Paracuellos) - Give pcibios_root_bridge_prepare() access to host bridge windows (Sergio Paracuellos) - Move MIPS I/O coherency unit setup from driver to pcibios_root_bridge_prepare() (Sergio Paracuellos) - Add missing MODULE_LICENSE() (Sergio Paracuellos) - Allow COMPILE_TEST for all arches (Sergio Paracuellos) Microsoft Hyper-V host bridge driver: - Add hv-internal interfaces to encapsulate arch IRQ dependencies (Sunil Muthuswamy) - Add arm64 Hyper-V vPCI support (Sunil Muthuswamy) Qualcomm PCIe controller driver: - Undo PM setup in qcom_pcie_probe() error handling path (Christophe JAILLET) - Use __be16 type to store return value from cpu_to_be16() (Manivannan Sadhasivam) - Constify static dw_pcie_ep_ops (Rikard Falkeborn) Renesas R-Car PCIe controller driver: - Fix aarch32 abort handler so it doesn't check the wrong bus clock before accessing the host controller (Marek Vasut) TI Keystone PCIe controller driver: - Add register offset for ti,syscon-pcie-id and ti,syscon-pcie-mode DT properties (Kishon Vijay Abraham I) MicroSemi Switchtec management driver: - Add Gen4 automotive device IDs (Kelvin Cao) - Declare state_names[] as static so it's not allocated and initialized for every call (Kelvin Cao) Host controller driver cleanups: - Use of_device_get_match_data(), not of_match_device(), when we only need the device data in altera, artpec6, cadence, designware-plat, dra7xx, keystone, kirin (Fan Fei) - Drop pointless of_device_get_match_data() cast in j721e (Bjorn Helgaas) - Drop redundant struct device * from j721e since struct cdns_pcie already has one (Bjorn Helgaas) - Rename driver structs to *_pcie in intel-gw, iproc, ls-gen4, mediatek-gen3, microchip, mt7621, rcar-gen2, tegra194, uniphier, xgene, xilinx, xilinx-cpm for consistency across drivers (Fan Fei) - Fix invalid address space conversions in hisi, spear13xx (Bjorn Helgaas) Miscellaneous: - Sort Intel Device IDs by value (Andy Shevchenko) - Change Capability offsets to hex to match spec (Baruch Siach) - Correct misspellings (Krzysztof Wilczyński) - Terminate statement with semicolon in pci_endpoint_test.c (Ming Wang)" * tag 'pci-v5.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (151 commits) PCI: mt7621: Allow COMPILE_TEST for all arches PCI: mt7621: Add missing MODULE_LICENSE() PCI: mt7621: Move MIPS setup to pcibios_root_bridge_prepare() PCI: Let pcibios_root_bridge_prepare() access bridge->windows PCI: mt7621: Declare mt7621_pci_ops static PCI: brcmstb: Do not turn off WOL regulators on suspend PCI: brcmstb: Add control of subdevice voltage regulators PCI: brcmstb: Add mechanism to turn on subdev regulators PCI: brcmstb: Split brcm_pcie_setup() into two funcs dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators dt-bindings: PCI: Correct brcmstb interrupts, interrupt-map. PCI: brcmstb: Fix function return value handling PCI: brcmstb: Do not use __GENMASK PCI: brcmstb: Declare 'used' as bitmap, not unsigned long PCI: hv: Add arm64 Hyper-V vPCI support PCI: hv: Make the code arch neutral by adding arch specific interfaces PCI: pciehp: Use down_read/write_nested(reset_lock) to fix lockdep errors x86/PCI: Remove initialization of static variables to false PCI: Use DWORD accesses for LTR, L1 SS to avoid erratum misc: pci_endpoint_test: Terminate statement with semicolon ...
2022-01-15Merge branch 'akpm' (patches from Andrew)Linus Torvalds4-7/+7
Merge misc updates from Andrew Morton: "146 patches. Subsystems affected by this patch series: kthread, ia64, scripts, ntfs, squashfs, ocfs2, vfs, and mm (slab-generic, slab, kmemleak, dax, kasan, debug, pagecache, gup, shmem, frontswap, memremap, memcg, selftests, pagemap, dma, vmalloc, memory-failure, hugetlb, userfaultfd, vmscan, mempolicy, oom-kill, hugetlbfs, migration, thp, ksm, page-poison, percpu, rmap, zswap, zram, cleanups, hmm, and damon)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (146 commits) mm/damon: hide kernel pointer from tracepoint event mm/damon/vaddr: hide kernel pointer from damon_va_three_regions() failure log mm/damon/vaddr: use pr_debug() for damon_va_three_regions() failure logging mm/damon/dbgfs: remove an unnecessary variable mm/damon: move the implementation of damon_insert_region to damon.h mm/damon: add access checking for hugetlb pages Docs/admin-guide/mm/damon/usage: update for schemes statistics mm/damon/dbgfs: support all DAMOS stats Docs/admin-guide/mm/damon/reclaim: document statistics parameters mm/damon/reclaim: provide reclamation statistics mm/damon/schemes: account how many times quota limit has exceeded mm/damon/schemes: account scheme actions that successfully applied mm/damon: remove a mistakenly added comment for a future feature Docs/admin-guide/mm/damon/usage: update for kdamond_pid and (mk|rm)_contexts Docs/admin-guide/mm/damon/usage: mention tracepoint at the beginning Docs/admin-guide/mm/damon/usage: remove redundant information Docs/admin-guide/mm/damon/usage: update for scheme quotas and watermarks mm/damon: convert macro functions to static inline functions mm/damon: modify damon_rand() macro to static inline function mm/damon: move damon_rand() definition into damon.h ...
2022-01-15arch: remove GENERIC_FIND_FIRST_BIT entirelyYury Norov1-1/+0
In 5.12 cycle we enabled GENERIC_FIND_FIRST_BIT config option for ARM64 and MIPS. It increased performance and shrunk .text size; and so far I didn't receive any negative feedback on the change. https://lore.kernel.org/linux-arch/20210225135700.1381396-1-yury.norov@gmail.com/ Now I think it's a good time to switch all architectures to use find_{first,last}_bit() unconditionally, and so remove corresponding config option. The patch does't introduce functioal changes for arc, arm, arm64, mips, m68k, s390 and x86, for other architectures I expect improvement both in performance and .text size. Signed-off-by: Yury Norov <yury.norov@gmail.com> Tested-by: Alexander Lobakin <alobakin@pm.me> (mips) Reviewed-by: Alexander Lobakin <alobakin@pm.me> (mips) Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Will Deacon <will@kernel.org> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2022-01-15include: move find.h from asm_generic to linuxYury Norov1-1/+0
find_bit API and bitmap API are closely related, but inclusion paths are different - include/asm-generic and include/linux, correspondingly. In the past it made a lot of troubles due to circular dependencies and/or undefined symbols. Fix this by moving find.h under include/linux. Signed-off-by: Yury Norov <yury.norov@gmail.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2022-01-15mm/mempolicy: wire up syscall set_mempolicy_home_nodeAneesh Kumar K.V2-1/+3
Link: https://lkml.kernel.org/r/20211202123810.267175-4-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Ben Widawsky <ben.widawsky@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Feng Tang <feng.tang@intel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: <linux-api@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-15mm: remove redundant check about FAULT_FLAG_ALLOW_RETRY bitQi Zheng1-4/+2
Since commit 4064b9827063 ("mm: allow VM_FAULT_RETRY for multiple times") allowed VM_FAULT_RETRY for multiple times, the FAULT_FLAG_ALLOW_RETRY bit of fault_flag will not be changed in the page fault path, so the following check is no longer needed: flags & FAULT_FLAG_ALLOW_RETRY So just remove it. [akpm@linux-foundation.org: coding style fixes] Link: https://lkml.kernel.org/r/20211110123358.36511-1-zhengqi.arch@bytedance.com Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: David Hildenbrand <david@redhat.com> Cc: Kirill Shutemov <kirill@shutemov.name> Cc: Peter Xu <peterx@redhat.com> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Chengming Zhou <zhouchengming@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-15mm: defer kmemleak object creation of module_alloc()Kefeng Wang1-2/+2
Yongqiang reports a kmemleak panic when module insmod/rmmod with KASAN enabled(without KASAN_VMALLOC) on x86[1]. When the module area allocates memory, it's kmemleak_object is created successfully, but the KASAN shadow memory of module allocation is not ready, so when kmemleak scan the module's pointer, it will panic due to no shadow memory with KASAN check. module_alloc __vmalloc_node_range kmemleak_vmalloc kmemleak_scan update_checksum kasan_module_alloc kmemleak_ignore Note, there is no problem if KASAN_VMALLOC enabled, the modules area entire shadow memory is preallocated. Thus, the bug only exits on ARCH which supports dynamic allocation of module area per module load, for now, only x86/arm64/s390 are involved. Add a VM_DEFER_KMEMLEAK flags, defer vmalloc'ed object register of kmemleak in module_alloc() to fix this issue. [1] https://lore.kernel.org/all/6d41e2b9-4692-5ec4-b1cd-cbe29ae89739@huawei.com/ [wangkefeng.wang@huawei.com: fix build] Link: https://lkml.kernel.org/r/20211125080307.27225-1-wangkefeng.wang@huawei.com [akpm@linux-foundation.org: simplify ifdefs, per Andrey] Link: https://lkml.kernel.org/r/CA+fCnZcnwJHUQq34VuRxpdoY6_XbJCDJ-jopksS5Eia4PijPzw@mail.gmail.com Link: https://lkml.kernel.org/r/20211124142034.192078-1-wangkefeng.wang@huawei.com Fixes: 793213a82de4 ("s390/kasan: dynamic shadow mem allocation for modules") Fixes: 39d114ddc682 ("arm64: add KASAN support") Fixes: bebf56a1b176 ("kasan: enable instrumentation of global variables") Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reported-by: Yongqiang Liu <liuyongqiang13@huawei.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Alexander Potapenko <glider@google.com> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-14Merge tag 'sound-5.17-rc1' of ↵Linus Torvalds1-3/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "It's a relatively calm development cycle, but still lots of updates in the driver side like Intel SOF. Below are some highlights: ALSA / ASoC core: - A new kselftest for ALSA control API - PCM NO_REWINDS support - Potential race fixes around control removals - Unify x86 SG-buffer memory allocation code - Cleanups and race fixes for ASoC DPCM locking ASoC: - Refinements and cleanups around the delay() APIs - Wider use of dev_err_probe(). - Continuing cleanups and improvements to the SOF code - Support for pin switches in simple-card derived cards - Support for AMD Renoir ACP, Asahi Kasei Microdevices AKM4375, Intel systems using NAU8825 and MAX98390, Mediatek MT8915, nVidia Tegra20 S/PDIF, Qualcomm systems using ALC5682I-VS and Texas Instruments TLV320ADC3xxx HD-audio / USB-audio: - Fix deadlock at HD-audio codec unbinding - Fixes for Tegra194 HD-audio, new HDA support for CS35L41 codec - Quirks for Lenovo and HP machines, Gigabyte mobo, Bose device Misc: - Fix virmidi drain behavior Note that the merge of CS35L41 codec support is still half-baked, and at least one ACPI change is missing. Although this won't hinder the kernel build itself, we're going to catch up before RC1" * tag 'sound-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (415 commits) ALSA: hda: intel-dsp-config: reorder the config table ALSA: hda: intel-dsp-config: add JasperLake support ALSA: hda: cs35l41: fix double free on error in probe() ALSA: hda: Fix dependencies of CS35L41 on SPI/I2C buses ALSA: hda: Fix dependency on ASoC cs35l41 codec ASoC: cs35l41: Add support for hibernate memory retention mode ASoC: cs35l41: Update handling of test key registers ALSA: intel_hdmi: Check for error num after setting mask ASoC: wcd9335: Keep a RX port value for each SLIM RX mux ASoC: amd: acp: acp-mach: Change default RT1019 amp dev id ALSA: virmidi: Remove duplicated code ALSA: seq: virmidi: Add a drain operation ASoC: topology: Fix typo ASoC: fsl_asrc: refine the check of available clock divider ASoC: Intel: bytcr_rt5640: Add support for external GPIO jack-detect ASoC: Intel: bytcr_rt5640: Support retrieving the codec IRQ from the AMCR0F28 ACPI dev ASoC: rt5640: Add support for boards with an external jack-detect GPIO ASoC: rt5640: Allow snd_soc_component_set_jack() to override the codec IRQ ASoC: rt5640: Change jack_work to a delayed_work ASoC: rt5640: Fix possible NULL pointer deref on resume ...
2022-01-13Merge tag 'perf_core_for_v5.17_rc1' of ↵Linus Torvalds8-70/+32
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Borislav Petkov: "Cleanup of the perf/kvm interaction." * tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Drop guest callback (un)register stubs KVM: arm64: Drop perf.c and fold its tiny bits of code into arm.c KVM: arm64: Hide kvm_arm_pmu_available behind CONFIG_HW_PERF_EVENTS=y KVM: arm64: Convert to the generic perf callbacks KVM: x86: Move Intel Processor Trace interrupt handler to vmx.c KVM: Move x86's perf guest info callbacks to generic KVM KVM: x86: More precisely identify NMI from guest when handling PMI KVM: x86: Drop current_vcpu for kvm_running_vcpu + kvm_arch_vcpu variable perf/core: Use static_call to optimize perf_guest_info_callbacks perf: Force architectures to opt-in to guest callbacks perf: Add wrappers for invoking guest callbacks perf/core: Rework guest callbacks to prepare for static_call support perf: Drop dead and useless guest "support" from arm, csky, nds32 and riscv perf: Stop pretending that perf can handle multiple guest callbacks KVM: x86: Register Processor Trace interrupt hook iff PT enabled in guest KVM: x86: Register perf callbacks after calling vendor's hardware_setup() perf: Protect perf_guest_cbs with RCU
2022-01-12PCI: hv: Add arm64 Hyper-V vPCI supportSunil Muthuswamy1-0/+9
Add arm64 Hyper-V vPCI support by implementing the arch specific interfaces. Introduce an IRQ domain and chip specific to Hyper-v vPCI that is based on SPIs. The IRQ domain parents itself to the arch GIC IRQ domain for basic vector management. [bhelgaas: squash in fix from Yang Li <yang.lee@linux.alibaba.com>: https://lore.kernel.org/r/20220112003324.62755-1-yang.lee@linux.alibaba.com] Link: https://lore.kernel.org/r/1641411156-31705-3-git-send-email-sunilmut@linux.microsoft.com Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com>
2022-01-12Merge tag 'locking_core_for_v5.17_rc1' of ↵Linus Torvalds2-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Borislav Petkov: "Lots of cleanups and preparation. Highlights: - futex: Cleanup and remove runtime futex_cmpxchg detection - rtmutex: Some fixes for the PREEMPT_RT locking infrastructure - kcsan: Share owner_on_cpu() between mutex,rtmutex and rwsem and annotate the racy owner->on_cpu access *once*. - atomic64: Dead-Code-Elemination" [ Description above by Peter Zijlstra ] * tag 'locking_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/atomic: atomic64: Remove unusable atomic ops futex: Fix additional regressions locking: Allow to include asm/spinlock_types.h from linux/spinlock_types_raw.h x86/mm: Include spinlock_t definition in pgtable. locking: Mark racy reads of owner->on_cpu locking: Make owner_on_cpu() into <linux/sched.h> lockdep/selftests: Adapt ww-tests for PREEMPT_RT lockdep/selftests: Skip the softirq related tests on PREEMPT_RT lockdep/selftests: Unbalanced migrate_disable() & rcu_read_lock(). lockdep/selftests: Avoid using local_lock_{acquire|release}(). lockdep: Remove softirq accounting on PREEMPT_RT. locking/rtmutex: Add rt_mutex_lock_nest_lock() and rt_mutex_lock_killable(). locking/rtmutex: Squash self-deadlock check for ww_rt_mutex. locking: Remove rt_rwlock_is_contended(). sched: Trigger warning if ->migration_disabled counter underflows. futex: Fix sparc32/m68k/nds32 build regression futex: Remove futex_cmpxchg detection futex: Ensure futex_atomic_cmpxchg_inatomic() is present kernel/locking: Use a pointer in ww_mutex_trylock().
2022-01-11Merge tag 'pm-5.17-rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "The most signigicant change here is the addition of a new cpufreq 'P-state' driver for AMD processors as a better replacement for the venerable acpi-cpufreq driver. There are also other cpufreq updates (in the core, intel_pstate, ARM drivers), PM core updates (mostly related to adding new macros for declaring PM operations which should make the lives of driver developers somewhat easier), and a bunch of assorted fixes and cleanups. Summary: - Add new P-state driver for AMD processors (Huang Rui). - Fix initialization of min and max frequency QoS requests in the cpufreq core (Rafael Wysocki). - Fix EPP handling on Alder Lake in intel_pstate (Srinivas Pandruvada). - Make intel_pstate update cpuinfo.max_freq when notified of HWP capabilities changes and drop a redundant function call from that driver (Rafael Wysocki). - Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel, Stephen Boyd, Vladimir Zapolskiy). - Fix double devm_remap() in the Mediatek cpufreq driver (Hector Yuan). - Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz Luba). - Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman). - Make cpuidle use default_groups in kobj_type (Greg Kroah-Hartman). - Fix two comments in cpuidle code (Jason Wang, Yang Li). - Allow model-specific normal EPB value to be used in the intel_epb sysfs attribute handling code (Srinivas Pandruvada). - Simplify locking in pm_runtime_put_suppliers() (Rafael Wysocki). - Add safety net to supplier device release in the runtime PM core code (Rafael Wysocki). - Capture device status before disabling runtime PM for it (Rafael Wysocki). - Add new macros for declaring PM operations to allow drivers to avoid guarding them with CONFIG_PM #ifdefs or __maybe_unused and update some drivers to use these macros (Paul Cercueil). - Allow ACPI hardware signature to be honoured during restore from hibernation (David Woodhouse). - Update outdated operating performance points (OPP) documentation (Tang Yizhou). - Reduce log severity for informative message regarding frequency transition failures in devfreq (Tzung-Bi Shih). - Add DRAM frequency controller devfreq driver for Allwinner sunXi SoCs (Samuel Holland). - Add missing COMMON_CLK dependency to sun8i devfreq driver (Arnd Bergmann). - Add support for new layout of Psys PowerLimit Register on SPR to the Intel RAPL power capping driver (Zhang Rui). - Fix typo in a comment in idle_inject.c (Jason Wang). - Remove unused function definition from the DTPM (Dynamit Thermal Power Management) power capping framework (Daniel Lezcano). - Reduce DTPM trace verbosity (Daniel Lezcano)" * tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits) x86, sched: Fix undefined reference to init_freq_invariance_cppc() build error cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State cpufreq: amd-pstate: Fix struct amd_cpudata kernel-doc comment cpuidle: use default_groups in kobj_type x86: intel_epb: Allow model specific normal EPB value MAINTAINERS: Add AMD P-State driver maintainer entry Documentation: amd-pstate: Add AMD P-State driver introduction cpufreq: amd-pstate: Add AMD P-State performance attributes cpufreq: amd-pstate: Add AMD P-State frequencies attributes cpufreq: amd-pstate: Add boost mode support for AMD P-State cpufreq: amd-pstate: Add trace for AMD P-State module cpufreq: amd-pstate: Introduce the support for the processors with shared memory solution cpufreq: amd-pstate: Add fast switch function for AMD P-State cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors ACPI: CPPC: Add CPPC enable register function ACPI: CPPC: Check present CPUs for determining _CPC is valid ACPI: CPPC: Implement support for SystemIO registers x86/msr: Add AMD CPPC MSR definitions x86/cpufeatures: Add AMD Collaborative Processor Performance Control feature flag cpufreq: use default_groups in kobj_type ...
2022-01-11Merge tag '5.17-net-next' of ↵Linus Torvalds5-25/+12
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core ---- - Defer freeing TCP skbs to the BH handler, whenever possible, or at least perform the freeing outside of the socket lock section to decrease cross-CPU allocator work and improve latency. - Add netdevice refcount tracking to locate sources of netdevice and net namespace refcount leaks. - Make Tx watchdog less intrusive - avoid pausing Tx and restarting all queues from a single CPU removing latency spikes. - Various small optimizations throughout the stack from Eric Dumazet. - Make netdev->dev_addr[] constant, force modifications to go via appropriate helpers to allow us to keep addresses in ordered data structures. - Replace unix_table_lock with per-hash locks, improving performance of bind() calls. - Extend skb drop tracepoint with a drop reason. - Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW. BPF --- - New helpers: - bpf_find_vma(), find and inspect VMAs for profiling use cases - bpf_loop(), runtime-bounded loop helper trading some execution time for much faster (if at all converging) verification - bpf_strncmp(), improve performance, avoid compiler flakiness - bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt() for tracing programs, all inlined by the verifier - Support BPF relocations (CO-RE) in the kernel loader. - Further the support for BTF_TYPE_TAG annotations. - Allow access to local storage in sleepable helpers. - Convert verifier argument types to a composable form with different attributes which can be shared across types (ro, maybe-null). - Prepare libbpf for upcoming v1.0 release by cleaning up APIs, creating new, extensible ones where missing and deprecating those to be removed. Protocols --------- - WiFi (mac80211/cfg80211): - notify user space about long "come back in N" AP responses, allow it to react to such temporary rejections - allow non-standard VHT MCS 10/11 rates - use coarse time in airtime fairness code to save CPU cycles - Bluetooth: - rework of HCI command execution serialization to use a common queue and work struct, and improve handling errors reported in the middle of a batch of commands - rework HCI event handling to use skb_pull_data, avoiding packet parsing pitfalls - support AOSP Bluetooth Quality Report - SMC: - support net namespaces, following the RDMA model - improve connection establishment latency by pre-clearing buffers - introduce TCP ULP for automatic redirection to SMC - Multi-Path TCP: - support ioctls: SIOCINQ, OUTQ, and OUTQNSD - support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT, IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY - support cmsgs: TCP_INQ - improvements in the data scheduler (assigning data to subflows) - support fastclose option (quick shutdown of the full MPTCP connection, similar to TCP RST in regular TCP) - MCTP (Management Component Transport) over serial, as defined by DMTF spec DSP0253 - "MCTP Serial Transport Binding". Driver API ---------- - Support timestamping on bond interfaces in active/passive mode. - Introduce generic phylink link mode validation for drivers which don't have any quirks and where MAC capability bits fully express what's supported. Allow PCS layer to participate in the validation. Convert a number of drivers. - Add support to set/get size of buffers on the Rx rings and size of the tx copybreak buffer via ethtool. - Support offloading TC actions as first-class citizens rather than only as attributes of filters, improve sharing and device resource utilization. - WiFi (mac80211/cfg80211): - support forwarding offload (ndo_fill_forward_path) - support for background radar detection hardware - SA Query Procedures offload on the AP side New hardware / drivers ---------------------- - tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with real-time requirements for isochronous communication with protocols like OPC UA Pub/Sub. - Qualcomm BAM-DMUX WWAN - driver for data channels of modems integrated into many older Qualcomm SoCs, e.g. MSM8916 or MSM8974 (qcom_bam_dmux). - Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch driver with support for bridging, VLANs and multicast forwarding (lan966x). - iwlmei driver for co-operating between Intel's WiFi driver and Intel's Active Management Technology (AMT) devices. - mse102x - Vertexcom MSE102x Homeplug GreenPHY chips - Bluetooth: - MediaTek MT7921 SDIO devices - Foxconn MT7922A - Realtek RTL8852AE Drivers ------- - Significantly improve performance in the datapaths of: lan78xx, ax88179_178a, lantiq_xrx200, bnxt. - Intel Ethernet NICs: - igb: support PTP/time PEROUT and EXTTS SDP functions on 82580/i354/i350 adapters - ixgbevf: new PF -> VF mailbox API which avoids the risk of mailbox corruption with ESXi - iavf: support configuration of VLAN features of finer granularity, stacked tags and filtering - ice: PTP support for new E822 devices with sub-ns precision - ice: support firmware activation without reboot - Mellanox Ethernet NICs (mlx5): - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool - support TC forwarding when tunnel encap and decap happen between two ports of the same NIC - dynamically size and allow disabling various features to save resources for running in embedded / SmartNIC scenarios - Broadcom Ethernet NICs (bnxt): - use page frag allocator to improve Rx performance - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool - Other Ethernet NICs: - amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support - Microsoft cloud/virtual NIC (mana): - add XDP support (PASS, DROP, TX) - Mellanox Ethernet switches (mlxsw): - initial support for Spectrum-4 ASICs - VxLAN with IPv6 underlay - Marvell Ethernet switches (prestera): - support flower flow templates - add basic IP forwarding support - NXP embedded Ethernet switches (ocelot & felix): - support Per-Stream Filtering and Policing (PSFP) - enable cut-through forwarding between ports by default - support FDMA to improve packet Rx/Tx to CPU - Other embedded switches: - hellcreek: improve trapping management (STP and PTP) packets - qca8k: support link aggregation and port mirroring - Qualcomm 802.11ax WiFi (ath11k): - qca6390, wcn6855: enable 802.11 power save mode in station mode - BSS color change support - WCN6855 hw2.1 support - 11d scan offload support - scan MAC address randomization support - full monitor mode, only supported on QCN9074 - qca6390/wcn6855: report signal and tx bitrate - qca6390: rfkill support - qca6390/wcn6855: regdb.bin support - Intel WiFi (iwlwifi): - support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS) in cooperation with the BIOS - support for Optimized Connectivity Experience (OCE) scan - support firmware API version 68 - lots of preparatory work for the upcoming Bz device family - MediaTek WiFi (mt76): - Specific Absorption Rate (SAR) support - mt7921: 160 MHz channel support - RealTek WiFi (rtw88): - Specific Absorption Rate (SAR) support - scan offload - Other WiFi NICs - ath10k: support fetching (pre-)calibration data from nvmem - brcmfmac: configure keep-alive packet on suspend - wcn36xx: beacon filter support" * tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2048 commits) tcp: tcp_send_challenge_ack delete useless param `skb` net/qla3xxx: Remove useless DMA-32 fallback configuration rocker: Remove useless DMA-32 fallback configuration hinic: Remove useless DMA-32 fallback configuration lan743x: Remove useless DMA-32 fallback configuration net: enetc: Remove useless DMA-32 fallback configuration cxgb4vf: Remove useless DMA-32 fallback configuration cxgb4: Remove useless DMA-32 fallback configuration cxgb3: Remove useless DMA-32 fallback configuration bnx2x: Remove useless DMA-32 fallback configuration et131x: Remove useless DMA-32 fallback configuration be2net: Remove useless DMA-32 fallback configuration vmxnet3: Remove useless DMA-32 fallback configuration bna: Simplify DMA setting net: alteon: Simplify DMA setting myri10ge: Simplify DMA setting qlcnic: Simplify DMA setting net: allwinner: Fix print format page_pool: remove spinlock in page_pool_refill_alloc_cache() amt: fix wrong return type of amt_send_membership_update() ...
2022-01-10Merge tag 'core_entry_for_v5.17_rc1' of ↵Linus Torvalds4-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull thread_info flag accessor helper updates from Borislav Petkov: "Add a set of thread_info.flags accessors which snapshot it before accesing it in order to prevent any potential data races, and convert all users to those new accessors" * tag 'core_entry_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: powerpc: Snapshot thread flags powerpc: Avoid discarding flags in system_call_exception() openrisc: Snapshot thread flags microblaze: Snapshot thread flags arm64: Snapshot thread flags ARM: Snapshot thread flags alpha: Snapshot thread flags sched: Snapshot thread flags entry: Snapshot thread flags x86: Snapshot thread flags thread_info: Add helpers to snapshot thread flags
2022-01-10Merge branch 'pm-cpufreq'Rafael J. Wysocki1-1/+1
Merge cpufreq updates for 5.17-rc1: - Add new P-state driver for AMD processors (Huang Rui). - Fix initialization of min and max frequency QoS requests in the cpufreq core (Rafael Wysocki). - Fix EPP handling on Alder Lake in intel_pstate (Srinivas Pandruvada). - Make intel_pstate update cpuinfo.max_freq when notified of HWP capabilities changes and drop a redundant function call from that driver (Rafael Wysocki). - Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel, Stephen Boyd, Vladimir Zapolskiy). - Fix double devm_remap() in the Mediatek cpufreq driver (Hector Yuan). - Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz Luba). - Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman). * pm-cpufreq: (32 commits) x86, sched: Fix undefined reference to init_freq_invariance_cppc() build error cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State cpufreq: amd-pstate: Fix struct amd_cpudata kernel-doc comment MAINTAINERS: Add AMD P-State driver maintainer entry Documentation: amd-pstate: Add AMD P-State driver introduction cpufreq: amd-pstate: Add AMD P-State performance attributes cpufreq: amd-pstate: Add AMD P-State frequencies attributes cpufreq: amd-pstate: Add boost mode support for AMD P-State cpufreq: amd-pstate: Add trace for AMD P-State module cpufreq: amd-pstate: Introduce the support for the processors with shared memory solution cpufreq: amd-pstate: Add fast switch function for AMD P-State cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors ACPI: CPPC: Add CPPC enable register function ACPI: CPPC: Check present CPUs for determining _CPC is valid ACPI: CPPC: Implement support for SystemIO registers x86/msr: Add AMD CPPC MSR definitions x86/cpufeatures: Add AMD Collaborative Processor Performance Control feature flag cpufreq: use default_groups in kobj_type cpufreq: mediatek-hw: Fix double devm_remap in hotplug case cpufreq: intel_pstate: Update cpuinfo.max_freq on HWP_CAP changes ...
2022-01-10Merge tag 'arm64-upstream' of ↵Linus Torvalds44-580/+747
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - KCSAN enabled for arm64. - Additional kselftests to exercise the syscall ABI w.r.t. SVE/FPSIMD. - Some more SVE clean-ups and refactoring in preparation for SME support (scalable matrix extensions). - BTI clean-ups (SYM_FUNC macros etc.) - arm64 atomics clean-up and codegen improvements. - HWCAPs for FEAT_AFP (alternate floating point behaviour) and FEAT_RPRESS (increased precision of reciprocal estimate and reciprocal square root estimate). - Use SHA3 instructions to speed-up XOR. - arm64 unwind code refactoring/unification. - Avoid DC (data cache maintenance) instructions when DCZID_EL0.DZP == 1 (potentially set by a hypervisor; user-space already does this). - Perf updates for arm64: support for CI-700, HiSilicon PCIe PMU, Marvell CN10K LLC-TAD PMU, miscellaneous clean-ups. - Other fixes and clean-ups; highlights: fix the handling of erratum 1418040, correct the calculation of the nomap region boundaries, introduce io_stop_wc() mapped to the new DGH instruction (data gathering hint). * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (81 commits) arm64: Use correct method to calculate nomap region boundaries arm64: Drop outdated links in comments arm64: perf: Don't register user access sysctl handler multiple times drivers: perf: marvell_cn10k: fix an IS_ERR() vs NULL check perf/smmuv3: Fix unused variable warning when CONFIG_OF=n arm64: errata: Fix exec handling in erratum 1418040 workaround arm64: Unhash early pointer print plus improve comment asm-generic: introduce io_stop_wc() and add implementation for ARM64 arm64: Ensure that the 'bti' macro is defined where linkage.h is included arm64: remove __dma_*_area() aliases docs/arm64: delete a space from tagged-address-abi arm64: Enable KCSAN kselftest/arm64: Add pidbench for floating point syscall cases arm64/fp: Add comments documenting the usage of state restore functions kselftest/arm64: Add a test program to exercise the syscall ABI kselftest/arm64: Allow signal tests to trigger from a function kselftest/arm64: Parameterise ptrace vector length information arm64/sve: Minor clarification of ABI documentation arm64/sve: Generalise vector length configuration prctl() for SME arm64/sve: Make sysctl interface for SVE reusable by SME ...
2022-01-10Merge tag 'dt-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds266-1083/+19699
Pull ARM SoC devicetree updates from Arnd Bergmann: "As usual, this is the bulk of the updates for the SoC tree, adding more devices to existing files, addressing issues from ever improving automated checking, and fixing minor issues. The most interesting bits as usual are the new platforms. All the newly supported SoCs belong into existing families this time: - Qualcomm gets support for two newly announced platforms, both of which can now work in production environments: the SDX65 5G modem that can run a minimal Linux on its Cortex-A7 core, and the Snapdragon 8 Gen 1, their latest high-end phone SoC. - Renesas adds support for R-Car S4-8, the most recent automotive Server/Communication SoC. - TI adds support for J721s2, a new automotive SoC in the K3 family. - Mediatek MT7986a/b is a SoC used in Wifi routers, the latest generation following their popular MT76xx series. Only basic support is added for now. - NXP i.MX8 ULP8 is a new low-power variant of the widespread i.MX8 series. - TI SPEAr320s is a minor variant of the old SPEAr320 SoC that we have supported for a long time. New boards with the existing SoCs include - Aspeed AST2500/AST2600 BMCs in TYAN, Facebook and Yadro servers - AT91/SAMA5 based evaluation board - NXP gains twenty new development and industrial boards for their i.MX and Layerscape SoCs - Intel IXP4xx now supports the final two machines in device tree that were previously only supported in old style board files. - Mediatek MT6589 is used in the Fairphone FP1 phone from 2013, while MT8183 is used in the Acer Chromebook 314. - Qualcomm gains support for the reference machines using the two new SoCs, plus a number of Chromebook variants and phones based on the Snapdragon 7c, 845 and 888 SoCs, including various Sony Xperia devices and the Microsoft Surface Duo 2. - ST STM32 now supports the Engicam i.Core STM32MP1 carrier board. - Tegra now boots various older Android devices based on 32-bit chips out of the box, including a number of ASUS Transformer tablets. There is also a new Jetson AGX Orin developer kit. - Apple support adds the missing device trees for all the remaining M1 Macbook and iMac variants, though not yet the M1 Pro/Max versions. - Allwinner now supports another version of the Tanix TX6 set-top box based on the H6 SoC. - Broadcom gains support for the Netgear RAXE500 Wireless router based on BCM4908" * tag 'dt-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (574 commits) Revert "ARM: dts: BCM5301X: define RTL8365MB switch on Asus RT-AC88U" arm64: dts: qcom: sm6125: Avoid using missing SM6125_VDDCX arm64: dts: qcom: sm8450-qrd: Enable USB nodes arm64: dts: qcom: sm8450: Add usb nodes ARM: dts: aspeed: add LCLK setting into LPC KCS nodes dt-bindings: ipmi: bt-bmc: add 'clocks' as a required property ARM: dts: aspeed: add LCLK setting into LPC IBT node ARM: dts: aspeed: p10: Add TPM device ARM: dts: aspeed: p10: Enable USB host ports ARM: dts: aspeed: Add TYAN S8036 BMC machine ARM: dts: aspeed: tyan-s7106: Add uart_routing and fix vuart config ARM: dts: aspeed: Adding Facebook Bletchley BMC ARM: dts: aspeed: g220a: Enable secondary flash ARM: dts: Add openbmc-flash-layout-64-alt.dtsi ARM: dts: aspeed: Add secure boot controller node dt-bindings: aspeed: Add Secure Boot Controller bindings ARM: dts: Remove "spidev" nodes dt-bindings: pinctrl: samsung: Add pin drive definitions for Exynos850 dt-bindings: arm: samsung: Document E850-96 board binding dt-bindings: Add vendor prefix for WinLink ...
2022-01-10Merge tag 'defconfig-5.17' of ↵Linus Torvalds1-0/+13
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM defconfig updates from Arnd Bergmann: "These are the usual changes to enable newly added driver by default, and to do some housekeeping around changing Kconfig symbols" * tag 'defconfig-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: arm64: defconfig: Enable Samsung I2C driver ARM: configs: at91: Enable crypto software implementations ARM: configs: at91: sama7: Enable SPI NOR and QSPI controller ARM: config: multi v7: Enable NVIDIA Tegra20 APB DMA driver ARM: config: multi v7: Enable NVIDIA Tegra20 S/PDIF driver ARM: tegra_defconfig: Enable S/PDIF driver ARM: imx_v6_v7_defconfig: Enable for DHCOM devices required RTC_DRV_RV3029C2 ARM: config: multi v7: Enable display drivers used by Tegra devices ARM: tegra_defconfig: Enable drivers wanted by Acer Chromebooks and ASUS tablets ARM: configs: gemini: Activate crypto driver arm64: defconfig: enable drivers for booting i.MX8ULP arm64: defconfig: Enable R-Car S4-8 arm64: defconfig: enable drivers for TQ TQMa8MxML-MBa8Mx arm64: defconfig: Enable OV5640 arm64: defconfig: Enable VIDEO_IMX_MEDIA
2022-01-10Merge tag 'soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds1-0/+1
Pull ARM SoC updates from Arnd Bergmann: "These are all minor bug fixes and cleanups to code in arch/arm and arch/arm64 that is specific to one SoC, updating Kconfig symbols, the MAINTAINERS file, and removing some dead code" * tag 'soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: arm64: exynos: Enable Exynos Multi-Core Timer driver ARM: ixp4xx: remove unused header file pata_ixp4xx_cf.h ARM: ixp4xx: remove dead configs CPU_IXP43X and CPU_IXP46X MAINTAINERS: Add Florian as BCM5301X and BCM53573 maintainer ARM: samsung: Remove HAVE_S3C2410_I2C and use direct dependencies ARM: imx: rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART ARM: imx: remove dead left-over from i.MX{27,31,35} removal ARM: s3c: add one more "fallthrough" statement in Jive ARM: s3c: include header for prototype of s3c2410_modify_misccr ARM: shmobile: rcar-gen2: Add missing of_node_put()
2022-01-08Merge tag 'soc-fixes-5.16-4' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Olof Johansson: "A few more fixes have come in, nothing overly severe but would be good to get in by final release: - More specific compatible fields on the qspi controller for socfpga, to enable quirks in the driver - A runtime PM fix for Renesas to fix mismatched reference counts on errors" * tag 'soc-fixes-5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: ARM: dts: socfpga: change qspi to "intel,socfpga-qspi" dt-bindings: spi: cadence-quadspi: document "intel,socfpga-qspi" reset: renesas: Fix Runtime PM usage
2022-01-07Merge tag 'kvmarm-5.17' of ↵Paolo Bonzini41-340/+975
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for Linux 5.16 - Simplification of the 'vcpu first run' by integrating it into KVM's 'pid change' flow - Refactoring of the FP and SVE state tracking, also leading to a simpler state and less shared data between EL1 and EL2 in the nVHE case - Tidy up the header file usage for the nvhe hyp object - New HYP unsharing mechanism, finally allowing pages to be unmapped from the Stage-1 EL2 page-tables - Various pKVM cleanups around refcounting and sharing - A couple of vgic fixes for bugs that would trigger once the vcpu xarray rework is merged, but not sooner - Add minimal support for ARMv8.7's PMU extension - Rework kvm_pgtable initialisation ahead of the NV work - New selftest for IRQ injection - Teach selftests about the lack of default IPA space and page sizes - Expand sysreg selftest to deal with Pointer Authentication - The usual bunch of cleanups and doc update
2022-01-05bpf, arm64: Use emit_addr_mov_i64() for BPF_PSEUDO_FUNCHou Tao1-1/+4
The following error is reported when running "./test_progs -t for_each" under arm64: bpf_jit: multi-func JIT bug 58 != 56 [...] JIT doesn't support bpf-to-bpf calls The root cause is the size of BPF_PSEUDO_FUNC instruction increases from 2 to 3 after the address of called bpf-function is settled and there are two bpf-to-bpf calls in test_pkt_access. The generated instructions are shown below: 0x48: 21 00 C0 D2 movz x1, #0x1, lsl #32 0x4c: 21 00 80 F2 movk x1, #0x1 0x48: E1 3F C0 92 movn x1, #0x1ff, lsl #32 0x4c: 41 FE A2 F2 movk x1, #0x17f2, lsl #16 0x50: 81 70 9F F2 movk x1, #0xfb84 Fixing it by using emit_addr_mov_i64() for BPF_PSEUDO_FUNC, so the size of jited image will not change. Fixes: 69c087ba6225 ("bpf: Add bpf_for_each_map_elem() helper") Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20211231151018.3781550-1-houtao1@huawei.com
2022-01-05Merge branches 'for-next/misc', 'for-next/cache-ops-dzp', ↵Catalin Marinas43-501/+570
'for-next/stacktrace', 'for-next/xor-neon', 'for-next/kasan', 'for-next/armv8_7-fp', 'for-next/atomics', 'for-next/bti', 'for-next/sve', 'for-next/kselftest' and 'for-next/kcsan', remote-tracking branch 'arm64/for-next/perf' into for-next/core * arm64/for-next/perf: (32 commits) arm64: perf: Don't register user access sysctl handler multiple times drivers: perf: marvell_cn10k: fix an IS_ERR() vs NULL check perf/smmuv3: Fix unused variable warning when CONFIG_OF=n arm64: perf: Support new DT compatibles arm64: perf: Simplify registration boilerplate arm64: perf: Support Denver and Carmel PMUs drivers/perf: hisi: Add driver for HiSilicon PCIe PMU docs: perf: Add description for HiSilicon PCIe PMU driver dt-bindings: perf: Add YAML schemas for Marvell CN10K LLC-TAD pmu bindings drivers: perf: Add LLC-TAD perf counter support perf/smmuv3: Synthesize IIDR from CoreSight ID registers perf/smmuv3: Add devicetree support dt-bindings: Add Arm SMMUv3 PMCG binding perf/arm-cmn: Add debugfs topology info perf/arm-cmn: Add CI-700 Support dt-bindings: perf: arm-cmn: Add CI-700 perf/arm-cmn: Support new IP features perf/arm-cmn: Demarcate CMN-600 specifics perf/arm-cmn: Move group validation data off-stack perf/arm-cmn: Optimise DTC counter accesses ... * for-next/misc: : Miscellaneous patches arm64: Use correct method to calculate nomap region boundaries arm64: Drop outdated links in comments arm64: errata: Fix exec handling in erratum 1418040 workaround arm64: Unhash early pointer print plus improve comment asm-generic: introduce io_stop_wc() and add implementation for ARM64 arm64: remove __dma_*_area() aliases docs/arm64: delete a space from tagged-address-abi arm64/fp: Add comments documenting the usage of state restore functions arm64: mm: Use asid feature macro for cheanup arm64: mm: Rename asid2idx() to ctxid2asid() arm64: kexec: reduce calls to page_address() arm64: extable: remove unused ex_handler_t definition arm64: entry: Use SDEI event constants arm64: Simplify checking for populated DT arm64/kvm: Fix bitrotted comment for SVE handling in handle_exit.c * for-next/cache-ops-dzp: : Avoid DC instructions when DCZID_EL0.DZP == 1 arm64: mte: DC {GVA,GZVA} shouldn't be used when DCZID_EL0.DZP == 1 arm64: clear_page() shouldn't use DC ZVA when DCZID_EL0.DZP == 1 * for-next/stacktrace: : Unify the arm64 unwind code arm64: Make some stacktrace functions private arm64: Make dump_backtrace() use arch_stack_walk() arm64: Make profile_pc() use arch_stack_walk() arm64: Make return_address() use arch_stack_walk() arm64: Make __get_wchan() use arch_stack_walk() arm64: Make perf_callchain_kernel() use arch_stack_walk() arm64: Mark __switch_to() as __sched arm64: Add comment for stack_info::kr_cur arch: Make ARCH_STACKWALK independent of STACKTRACE * for-next/xor-neon: : Use SHA3 instructions to speed up XOR arm64/xor: use EOR3 instructions when available * for-next/kasan: : Log potential KASAN shadow aliases arm64: mm: log potential KASAN shadow alias arm64: mm: use die_kernel_fault() in do_mem_abort() * for-next/armv8_7-fp: : Add HWCAPS for ARMv8.7 FEAT_AFP amd FEAT_RPRES arm64: cpufeature: add HWCAP for FEAT_RPRES arm64: add ID_AA64ISAR2_EL1 sys register arm64: cpufeature: add HWCAP for FEAT_AFP * for-next/atomics: : arm64 atomics clean-ups and codegen improvements arm64: atomics: lse: define RETURN ops in terms of FETCH ops arm64: atomics: lse: improve constraints for simple ops arm64: atomics: lse: define ANDs in terms of ANDNOTs arm64: atomics lse: define SUBs in terms of ADDs arm64: atomics: format whitespace consistently * for-next/bti: : BTI clean-ups arm64: Ensure that the 'bti' macro is defined where linkage.h is included arm64: Use BTI C directly and unconditionally arm64: Unconditionally override SYM_FUNC macros arm64: Add macro version of the BTI instruction arm64: ftrace: add missing BTIs arm64: kexec: use __pa_symbol(empty_zero_page) arm64: update PAC description for kernel * for-next/sve: : SVE code clean-ups and refactoring in prepararation of Scalable Matrix Extensions arm64/sve: Minor clarification of ABI documentation arm64/sve: Generalise vector length configuration prctl() for SME arm64/sve: Make sysctl interface for SVE reusable by SME * for-next/kselftest: : arm64 kselftest additions kselftest/arm64: Add pidbench for floating point syscall cases kselftest/arm64: Add a test program to exercise the syscall ABI kselftest/arm64: Allow signal tests to trigger from a function kselftest/arm64: Parameterise ptrace vector length information * for-next/kcsan: : Enable KCSAN for arm64 arm64: Enable KCSAN
2022-01-05arm64: Use correct method to calculate nomap region boundariesHuacai Chen1-2/+4
Nomap regions are treated as "reserved". When region boundaries are not page aligned, we usually increase the "reserved" regions rather than decrease them. So, we should use memblock_region_reserved_base_pfn()/ memblock_region_reserved_end_pfn() instead of memblock_region_memory_ base_pfn()/memblock_region_memory_base_pfn() to calculate boundaries. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Link: https://lore.kernel.org/r/20211022070646.41923-1-chenhuacai@loongson.cn Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-01-05arm64: Drop outdated links in commentsKees Cook1-4/+0
As started by commit 05a5f51ca566 ("Documentation: Replace lkml.org links with lore"), an effort was made to replace lkml.org links with lore to better use a single source that's more likely to stay available long-term. However, it seems these links don't offer much value here, so just remove them entirely. Cc: Joe Perches <joe@perches.com> Suggested-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/lkml/20210211100213.GA29813@willie-the-truck/ Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20211215191835.1420010-1-keescook@chromium.org [catalin.marinas@arm.com: removed the arch/arm changes] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-01-04Merge branch kvm-arm64/misc-5.17 into kvmarm-master/nextMarc Zyngier9-23/+17
* kvm-arm64/misc-5.17: : . : Misc fixes and improvements: : - Add minimal support for ARMv8.7's PMU extension : - Constify kvm_io_gic_ops : - Drop kvm_is_transparent_hugepage() prototype : - Drop unused workaround_flags field : - Rework kvm_pgtable initialisation : - Documentation fixes : - Replace open-coded SCTLR_EL1.EE useage with its defined macro : - Sysreg list selftest update to handle PAuth : - Include cleanups : . KVM: arm64: vgic: Replace kernel.h with the necessary inclusions KVM: arm64: Fix comment typo in kvm_vcpu_finalize_sve() KVM: arm64: selftests: get-reg-list: Add pauth configuration KVM: arm64: Fix comment on barrier in kvm_psci_vcpu_on() KVM: arm64: Fix comment for kvm_reset_vcpu() KVM: arm64: Use defined value for SCTLR_ELx_EE KVM: arm64: Rework kvm_pgtable initialisation KVM: arm64: Drop unused workaround_flags vcpu field Signed-off-by: Marc Zyngier <maz@kernel.org>
2022-01-04arm64: perf: Don't register user access sysctl handler multiple timesWill Deacon1-2/+9
Commit e2012600810c ("arm64: perf: Add userspace counter access disable switch") introduced a new 'perf_user_access' sysctl file to enable and disable direct userspace access to the PMU counters. Sadly, Geert reports that on his big.LITTLE SoC ('Renesas Salvator-XS w/ R-Car H3'), the file is created for each PMU type probed, resulting in a splat during boot: | hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available | sysctl duplicate entry: /kernel//perf_user_access | CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.16.0-rc3-arm64-renesas-00003-ge2012600810c #1420 | Hardware name: Renesas Salvator-X 2nd version board based on r8a77951 (DT) | Call trace: | dump_backtrace+0x0/0x190 | show_stack+0x14/0x20 | dump_stack_lvl+0x88/0xb0 | dump_stack+0x14/0x2c | __register_sysctl_table+0x384/0x818 | register_sysctl+0x20/0x28 | armv8_pmu_init.constprop.0+0x118/0x150 | armv8_a57_pmu_init+0x1c/0x28 | arm_pmu_device_probe+0x1b4/0x558 | armv8_pmu_device_probe+0x18/0x20 | platform_probe+0x64/0xd0 | hw perfevents: enabled with armv8_cortex_a57 PMU driver, 7 counters available Introduce a state variable to track creation of the sysctl file and ensure that it is only created once. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Fixes: e2012600810c ("arm64: perf: Add userspace counter access disable switch") Link: https://lore.kernel.org/r/CAMuHMdVcDxR9sGzc5pcnORiotonERBgc6dsXZXMd6wTvLGA9iw@mail.gmail.com Signed-off-by: Will Deacon <will@kernel.org>
2022-01-04KVM: arm64: Fix comment typo in kvm_vcpu_finalize_sve()Zenghui Yu1-1/+1
kvm_arm_init_arch_resources() was renamed to kvm_arm_init_sve() in commit a3be836df7cb ("KVM: arm/arm64: Demote kvm_arm_init_arch_resources() to just set up SVE"). Fix the function name in comment of kvm_vcpu_finalize_sve(). Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211230141535.1389-1-yuzenghui@huawei.com
2022-01-01arm64: tegra: Remove non existent Tegra194 resetSameer Pujar1-3/+2
Tegra194 does not really have "hda2codec_2x" related reset. Hence drop this entry to reflect actual HW. Fixes: 4878cc0c9fab ("arm64: tegra: Add HDA controller on Tegra194") Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1640260431-11613-4-git-send-email-spujar@nvidia.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-12-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski3-4/+3
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c commit 077cdda764c7 ("net/mlx5e: TC, Fix memory leak with rules with internal port") commit 31108d142f36 ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'") commit 4390c6edc0fb ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'") https://lore.kernel.org/all/20211229065352.30178-1-saeed@kernel.org/ net/smc/smc_wr.c commit 49dc9013e34b ("net/smc: Use the bitmap API when applicable") commit 349d43127dac ("net/smc: fix kernel panic caused by race of smc_sock") bitmap_zero()/memset() is removed by the fix Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-30Merge branch 'cpufreq/arm/linux-next' of ↵Rafael J. Wysocki1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull ARM cpufreq updates for 5.17-rc1 from Viresh Kumar: "- Qcom cpufreq driver updates improve irq support (Ard Biesheuvel, Stephen Boyd, and Vladimir Zapolskiy). - Fixes double devm_remap for mediatek driver (Hector Yuan). - Introduces thermal pressure helpers (Lukasz Luba)." * 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: mediatek-hw: Fix double devm_remap in hotplug case cpufreq: qcom-hw: Use optional irq API cpufreq: qcom-hw: Set CPU affinity of dcvsh interrupts cpufreq: qcom-hw: Fix probable nested interrupt handling cpufreq: qcom-cpufreq-hw: Avoid stack buffer for IRQ name arch_topology: Remove unused topology_set_thermal_pressure() and related cpufreq: qcom-cpufreq-hw: Use new thermal pressure update function cpufreq: qcom-cpufreq-hw: Update offline CPUs per-cpu thermal pressure thermal: cpufreq_cooling: Use new thermal pressure update function arch_topology: Introduce thermal pressure update function
2021-12-27Merge tag 'efi-urgent-for-v5.16-2' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull EFI fix from Ard Biesheuvel: "Another EFI fix for v5.16: - Prevent missing prototype warning from breaking the build under CONFIG_WERROR=y" * tag 'efi-urgent-for-v5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi: Move efifb_setup_from_dmi() prototype from arch headers
2021-12-27ARM: dts: socfpga: change qspi to "intel,socfpga-qspi"Dinh Nguyen2-2/+2
Because of commit 9cb2ff111712 ("spi: cadence-quadspi: Disable Auto-HW polling"), which does a write to the CQSPI_REG_WR_COMPLETION_CTRL register regardless of any condition. Well, the Cadence QuadSPI controller on Intel's SoCFPGA platforms does not implement the CQSPI_REG_WR_COMPLETION_CTRL register, thus a write to this register results in a crash! So starting with v5.16, I introduced the patch 98d948eb833 ("spi: cadence-quadspi: fix write completion support"), which adds the dts compatible "intel,socfpga-qspi" that is specific for versions that doesn't have the CQSPI_REG_WR_COMPLETION_CTRL register implemented. Signed-off-by: Dinh Nguyen <dinguyen@kernel.org> --- v3: revert back to "intel,socfpga-qspi" v2: use both "cdns,qspi-nor" and "cdns,qspi-nor-0010"
2021-12-23Merge tag 'arm-fixes-5.16-4' of ↵Linus Torvalds2-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Arnd Bergmann: "This is my last set of fixes for 5.16, including - multiple code fixes for the op-tee firmware driver - Two patches for allwinner SoCs, one fixing the phy mode on a board, the other one fixing a driver bug in the "RSB" bus driver. This was originally targeted for 5.17, but seemed worth moving to 5.16 - Two small fixes for devicetree files on i.MX platforms, resolving problems with ethernet and i2c" * tag 'arm-fixes-5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: optee: Suppress false positive kmemleak report in optee_handle_rpc() tee: optee: Fix incorrect page free bug arm64: dts: lx2160a: fix scl-gpios property name tee: handle lookup of shm with reference count 0 ARM: dts: imx6qdl-wandboard: Fix Ethernet support bus: sunxi-rsb: Fix shutdown arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode
2021-12-22Merge tag 'arm-soc/for-5.17/devicetree-arm64' of ↵Arnd Bergmann2-0/+51
https://github.com/Broadcom/stblinux into arm/dt This pull request contains Broadcom ARM64-based SoCs Device Tree changes for 5.17, please pull the following: - Rafal adds and documents the Netgear RAXE500 Wireless router based on the BCM4908 SoC. * tag 'arm-soc/for-5.17/devicetree-arm64' of https://github.com/Broadcom/stblinux: arm64: dts: broadcom: bcm4908: add DT for Netgear RAXE500 dt-bindings: arm: bcm: document Netgear RAXE500 binding Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-22Merge tag 'qcom-arm64-for-5.17-1' of ↵Arnd Bergmann79-111/+5823
git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt Qualcomm ARM64 DeviceTree updates for v5.17 This introduces initial support for the brand new Snapdragon 8 Gen 1, aka SM8450 platform, with SMP, CPUfreq, cluster idling, low speed buses, TLMM pinctrl, SMMU, regulators, clocks, power-domains, UFS storage and USB currently supported. SDM845 adds new support for Sony Xperia XZ2, XZ2C and XZ3. The Lenovo Yoga C630 gains a few audio related fixes. The PMIC's VADC channels are described as thermal zones. OnePlus devices gains msm-id and board-id, to facilitate a single firmware image for the multiple devices. On SM8350 the Sony Xperia 1 III and 5 III, as well as initial description of Microsoft's Surface Duo 2 are introduced. On the platform side, LLCC, QUP nodes, redistributor stride and all the low-speed QUPs are added MSM8996 gained various regulator fixes, and adsp firmware name to faciliate pushing firmware to linux-firmware. Xiaomi Mi Note 2 gained touchkey controller definition. On SDM660 the Xiaomi Redmi Note 7 gained power and volume keys, RPM and regulator definitions, USB, eMMC and SD-card and a simple-framebuffer description. MSM8916 has the mmc aliases corrected, to stop the storage devices to move around and the RPM sleep stats memory is described. Support for the Samsung J5 2015 smartphone is introduced. SM6350 validation errors are fixed and and description of the audio, compute and modem remoteprocs are added. A couple new revisions of the SC7180 based Google devices are added. The SC7280 platform gains venus and a few fixes. The CRD development device is introduced, with the EC, touchscreen and touchpad. On SM8250 CPU opp-tables, for scaling L3 cache and DDR frequency based on CPU frequency, are added. As is TX, RX macros and SoundWire blocks and used to enable audio on the SM8350 MTP. * tag 'qcom-arm64-for-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (92 commits) arm64: dts: qcom: sm6125: Avoid using missing SM6125_VDDCX arm64: dts: qcom: sm8450-qrd: Enable USB nodes arm64: dts: qcom: sm8450: Add usb nodes arm64: dts: qcom: sm8450: add i2c13 and i2c14 device nodes arm64: dts: qcom: sm8450: add cpufreq support arm64: dts: qcom: sm8450: Add rpmhpd node arm64: dts: qcom: sm8450-qrd: enable ufs nodes arm64: dts: qcom: sm8450: add ufs nodes arm64: dts: qcom: sm8450-qrd: Add rpmh regulator nodes arm64: dts: qcom: Add base SM8450 QRD DTS arm64: dts: qcom: sm8450: add smmu nodes arm64: dts: qcom: sm8450: Add reserved memory nodes arm64: dts: qcom: sm8450: Add tlmm nodes arm64: dts: qcom: Add base SM8450 DTSI arm64: dts: qcom: ipq6018: Fix gpio-ranges property arm64: dts: qcom: sdm845: add QFPROM chipset specific compatible arm64: dts: qcom: sdm845: mtp: Add vadc channels and thermal zones arm64: dts: qcom: pm8998: Add ADC Thermal Monitor node arm64: qcom: dts: drop legacy property #stream-id-cells Revert "arm64: dts: qcom: sm8350: Specify clock-frequency for arch timer" ... Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-22arm64: errata: Fix exec handling in erratum 1418040 workaroundD Scott Phillips1-23/+16
The erratum 1418040 workaround enables CNTVCT_EL1 access trapping in EL0 when executing compat threads. The workaround is applied when switching between tasks, but the need for the workaround could also change at an exec(), when a non-compat task execs a compat binary or vice versa. Apply the workaround in arch_setup_new_exec(). This leaves a small window of time between SET_PERSONALITY and arch_setup_new_exec where preemption could occur and confuse the old workaround logic that compares TIF_32BIT between prev and next. Instead, we can just read cntkctl to make sure it's in the state that the next task needs. I measured cntkctl read time to be about the same as a mov from a general-purpose register on N1. Update the workaround logic to examine the current value of cntkctl instead of the previous task's compat state. Fixes: d49f7d7376d0 ("arm64: Move handling of erratum 1418040 into C code") Cc: <stable@vger.kernel.org> # 5.9.x Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com> Reviewed-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211220234114.3926-1-scott@os.amperecomputing.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-12-22arm64: dts: qcom: sm6125: Avoid using missing SM6125_VDDCXBjorn Andersson1-2/+2
The SM6125_VDDCX constant is introduced through a separate branch and is not available in the dts branch. Temporarily replace the constant with it's value to avoid the build breakage. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-12-22arm64: Unhash early pointer print plus improve commentGuilherme G. Piccoli1-1/+6
When facing a really early issue on DT parsing we have currently a message that shows both the physical and virtual address of the FDT. The printk pointer modifier for the virtual address shows a hashed address there unless the user provides "no_hash_pointers" parameter in the command-line. The situation in which this message shows-up is a bit more serious though: the boot process is broken, nothing can be done (even an oops is too much for this early stage) so we have this message as a last resort in order to help debug bootloader issues, for example. Hence, we hereby change that to "%px" in order to make debugging easy, there's not much information leak risk in such early boot failure. Also, we tried to improve a bit the commenting on that function, given that if kernel fails there, it just hangs forever in a cpu_relax() loop. The reason we cannot BUG/panic is that is too early to do so; thanks to Mark Brown for pointing that on IRC and thanks Robin Murphy for the good pointer hash discussion in the mailing-list. Cc: Mark Brown <broonie@kernel.org> Cc: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20211221155230.1532850-1-gpiccoli@igalia.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-12-22asm-generic: introduce io_stop_wc() and add implementation for ARM64Xiongfeng Wang1-0/+9
For memory accesses with write-combining attributes (e.g. those returned by ioremap_wc()), the CPU may wait for prior accesses to be merged with subsequent ones. But in some situation, such wait is bad for the performance. We introduce io_stop_wc() to prevent the merging of write-combining memory accesses before this macro with those after it. We add implementation for ARM64 using DGH instruction and provide NOP implementation for other architectures. Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Suggested-by: Will Deacon <will@kernel.org> Suggested-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20211221035556.60346-1-wangxiongfeng2@huawei.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-12-21arm64: exynos: Enable Exynos Multi-Core Timer driverMarek Szyprowski1-0/+1
Some ARM64 Exynos SoCs have MCT timer block, e.g. Exynos850 and Exynos5433. CLKSRC_EXYNOS_MCT option is not visible unless COMPILE_TEST is enabled. Select CLKSRC_EXYNOS_MCT option for ARM64 ARCH_EXYNOS like it's done in arch/arm/mach-exynos/Kconfig, to enable MCT timer support for ARM64 Exynos SoCs. Even though ARM architected timer is available on all ARM64 SoCs, and used for managing timer hardware and clock source events, MCT timer still can be used as a wakeup source, as stated in commitae460fd9164b ("clocksource/drivers/exynos_mct: Prioritise Arm arch timer on arm64"). It's also nice to be able to test available MCT IP-core. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Link: https://lore.kernel.org/r/20211101193531.15078-3-semen.protsenko@linaro.org Link: https://lore.kernel.org/r/20211220165004.17005-2-krzysztof.kozlowski@canonical.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-21arm64: defconfig: Enable Samsung I2C driverSam Protsenko1-0/+1
i2c-s3c2410 driver is needed for some arm64 Exynos SoCs, e.g. Exynos850. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20211121150558.21801-1-semen.protsenko@linaro.org Link: https://lore.kernel.org/r/20211220165004.17005-1-krzysztof.kozlowski@canonical.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>