- May 07, 2019
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds authored
Pull EDAC updates from Borislav Petkov: - amd64_edac: Family 0x17, models 0x30-.. enablement (Yazen Ghannam) - skx_*: Librarize it so that it can be shared between drivers (Qiuxu Zhuo) - altera: Stratix10 improvements (Thor Thayer) - The usual round of fixes, fixlets and cleanups * tag 'edac_for_5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: Revert "EDAC/amd64: Support more than two controllers for chip select handling" arm64: dts: stratix10: Use new Stratix10 EDAC bindings Documentation: dt: edac: Add Stratix10 Peripheral bindings Documentation: dt: edac: Fix Stratix10 IRQ bindings EDAC/altera, firmware/intel: Add Stratix10 ECC DBE SMC call EDAC/altera: Initialize peripheral FIFOs in probe() EDAC/altera: Do less intrusive error injection EDAC/amd64: Adjust printed chip select sizes when interleaved EDAC/amd64: Support more than two controllers for chip select handling EDAC/amd64: Recognize x16 symbol size EDAC/amd64: Set maximum channel layer size depending on family EDAC/amd64: Support more than two Unified Memory Controllers EDAC/amd64: Use a macro for iterating over Unified Memory Controllers EDAC/amd64: Add Family 17h Model 30h PCI IDs MAINTAINERS: Add entry for EDAC-I10NM MAINTAINERS: Update entry for EDAC-SKYLAKE EDAC, altera: Fix S10 Double Bit Error Notification EDAC, skx, i10nm: Make skx_common.c a pure library
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull device properties framework updates from Rafael Wysocki: "These fix the handling of data nodes in the ACPI properties support code, add a new helper for endpoint lookup in property graphs and restore a comment inadvertently removed by one of previous changes. Specifics: - Fix the handling of data nodes in the ACPI properties support code for devices with child devices and hierarchical _DSD properties (Pierre-Louis Bossart). - Add fwnode_graph_get_endpoint_by_id() helper for endpoint lookup in device property graphs (Sakari Ailus). - Restore the _DSD data subnodes GUID comment inadvertently removed by one of previous changes (Shunyong Yang)" * tag 'devprop-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / property: fix handling of data_nodes in acpi_get_next_subnode() device property: Add fwnode_graph_get_endpoint_by_id() ACPI: property: restore _DSD data subnodes GUID comment
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management updates from Rafael Wysocki: "These fix the (Intel-specific) Performance and Energy Bias Hint (EPB) handling and expose it to user space via sysfs, fix and clean up several cpufreq drivers, add support for two new chips to the qoriq cpufreq driver, fix, simplify and clean up the cpufreq core and the schedutil governor, add support for "CPU" domains to the generic power domains (genpd) framework and provide low-level PSCI firmware support for that feature, fix the exynos cpuidle driver and fix a couple of issues in the devfreq subsystem and clean it up. Specifics: - Fix the handling of Performance and Energy Bias Hint (EPB) on Intel processors and expose it to user space via sysfs to avoid having to access it through the generic MSR I/F (Rafael Wysocki). - Improve the handling of global turbo changes made by the platform firmware in the intel_pstate driver (Rafael Wysocki). - Convert some slow-path static_cpu_has() callers to boot_cpu_has() in cpufreq (Borislav Petkov). - Fix the frequency calculation loop in the armada-37xx cpufreq driver (Gregory CLEMENT). - Fix possible object reference leaks in multuple cpufreq drivers (Wen Yang). - Fix kerneldoc comment in the centrino cpufreq driver (dongjian). - Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan Kumar). - Add support for lx2160a and ls1028a to the qoriq cpufreq driver (Vabhav Sharma, Yuantian Tang). - Fix kobject memory leak in the cpufreq core (Viresh Kumar). - Simplify the IOwait boosting in the schedutil cpufreq governor and rework the TSC cpufreq notifier on x86 (Rafael Wysocki). - Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin). - Improve the cpufreq documentation, add SPDX license tags to some PM documentation files and unify copyright notices in them (Rafael Wysocki). - Add support for "CPU" domains to the generic power domains (genpd) framework and provide low-level PSCI firmware support for that feature (Ulf Hansson). - Rearrange the PSCI firmware support code and add support for SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla). - Improve genpd support for devices in multiple power domains (Ulf Hansson). - Unify target residency for the AFTR and coupled AFTR states in the exynos cpuidle driver (Marek Szyprowski). - Introduce new helper routine in the operating performance points (OPP) framework (Andrew-sh.Cheng). - Add support for passing on-die termination (ODT) and auto power down parameters from the kernel to Trusted Firmware-A (TF-A) to the rk3399_dmc devfreq driver (Enric Balletbo i Serra). - Add tracing to devfreq (Lukasz Luba). - Make the exynos-bus devfreq driver suspend all devices on system shutdown (Marek Szyprowski). - Fix a few minor issues in the devfreq subsystem and clean it up somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring, Saravana Kannan, Yangtao Li). - Improve system wakeup diagnostics (Stephen Boyd). - Rework filesystem sync messages emitted during system suspend and hibernation (Harry Pan)" * tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits) cpufreq: Fix kobject memleak cpufreq: armada-37xx: fix frequency calculation for opp cpufreq: centrino: Fix centrino_setpolicy() kerneldoc comment cpufreq: qoriq: add support for lx2160a x86: tsc: Rework time_cpufreq_notifier() PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name() PM / Domains: Search for the CPU device outside the genpd lock PM / Domains: Drop unused in-parameter to some genpd functions PM / Domains: Use the base device for driver_deferred_probe_check_state() cpufreq: qoriq: Add ls1028a chip support PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain PM / Domains: Allow OF lookup for multi PM domain case from ->attach_dev() PM / Domains: Don't kfree() the virtual device in the error path cpufreq: Move ->get callback check outside of __cpufreq_get() PM / Domains: remove unnecessary unlikely() cpufreq: Remove needless bios_limit check in show_bios_limit() drivers/cpufreq/acpi-cpufreq.c: This fixes the following checkpatch warning firmware/psci: add support for SYSTEM_RESET2 PM / devfreq: add tracing for scheduling work trace: events: add devfreq trace event file ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI updates from Rafael Wysocki: "These rearrange the ACPI documentation by converting it to the .rst format and splitting it into clear categories (admin guide, driver API, firmware guide), switch over multiple users of a problematic library function to a new better one, update the ACPICA code in the kernel to a new upstream release, fix a few issues, improve power device management diagnostics and do some cleanups. Specifics: - Convert the ACPI documentation in the kernel source tree to the .rst format and split it into the admin guide, driver API and firmware guide parts (Changbin Du). - Add a PRP0001 usage example to the ACPI documentation (Thomas Preston). - Switch over the users of the acpi_dev_get_first_match_name() library function which turned out to be problematic to a new, better one called acpi_dev_get_first_match_dev() (Andy Shevchenko, YueHaibing). - Update the ACPICA code in the kernel to upstream release 20190405 including: * Null pointer dereference check in acpi_ns_delete_node() (Erik Schmauss). * Multiple macro and function name changes (Bob Moore). * Predefined operation region name fix (Erik Schmauss). - Fix hibernation issue on systems using the Baytrail and Cherrytrail Intel SoCs introduced during the 4.20 development cycle (Hans de Goede). - Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui). - Fix button handling during system resume (Zhang Rui). - Add a device PM diagnostic message (Rafael Wysocki). - Clean up the code, comments and white space in multiple places (Bjorn Helgaas, Gustavo Silva, Kefeng Wang)" * tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits) Documentation: ACPI: move video_extension.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move ssdt-overlays.txt to admin-guide/acpi and convert to reST Documentation: ACPI: move lpit.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move cppc_sysfs.txt to admin-guide/acpi and convert to reST Documentation: ACPI: move apei/einj.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move apei/output_format.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move aml-debugger.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move method-tracing.txt to firmware-guide/acpi and convert to rsST Documentation: ACPI: move debug.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move dsd/data-node-references.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move dsd/graph.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move acpi-lid.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move i2c-muxes.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move dsdt-override.txt to admin-guide/acpi and convert to reST Documentation: ACPI: move initrd_table_override.txt to admin-guide/acpi and convert to reST Documentation: ACPI: move method-customizing.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move gpio-properties.txt to firmware-guide/acpi and convert to reST Documentation: ACPI: move DSD-properties-rules.txt to firmware-guide/acpi and covert to reST Documentation: ACPI: move scan_handlers.txt to driver-api/acpi and convert to reST Documentation: ACPI: move linuxized-acpica.txt to driver-api/acpi and convert to reST ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 updates from Will Deacon: "Mostly just incremental improvements here: - Introduce AT_HWCAP2 for advertising CPU features to userspace - Expose SVE2 availability to userspace - Support for "data cache clean to point of deep persistence" (DC PODP) - Honour "mitigations=off" on the cmdline and advertise status via sysfs - CPU timer erratum workaround (Neoverse-N1 #1188873) - Introduce perf PMU driver for the SMMUv3 performance counters - Add config option to disable the kuser helpers page for AArch32 tasks - Futex modifications to ensure liveness under contention - Rework debug exception handling to seperate kernel and user handlers - Non-critical fixes and cleanup" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits) Documentation: Add ARM64 to kernel-parameters.rst arm64/speculation: Support 'mitigations=' cmdline option arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB arm64: enable generic CPU vulnerabilites support arm64: add sysfs vulnerability show for speculative store bypass arm64: Fix size of __early_cpu_boot_status clocksource/arm_arch_timer: Use arch_timer_read_counter to access stable counters clocksource/arm_arch_timer: Remove use of workaround static key clocksource/arm_arch_timer: Drop use of static key in arch_timer_reg_read_stable clocksource/arm_arch_timer: Direcly assign set_next_event workaround arm64: Use arch_timer_read_counter instead of arch_counter_get_cntvct watchdog/sbsa: Use arch_timer_read_counter instead of arch_counter_get_cntvct ARM: vdso: Remove dependency with the arch_timer driver internals arm64: Apply ARM64_ERRATUM_1188873 to Neoverse-N1 arm64: Add part number for Neoverse N1 arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32 arm64: mm: Remove pte_unmap_nested() arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable arm64: compat: Reduce address limit for 64K pages ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull mmiowb removal from Will Deacon: "Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) Remove mmiowb() from the kernel memory barrier API and instead, for architectures that need it, hide the barrier inside spin_unlock() when MMIO has been performed inside the critical section. The only relatively recent changes have been addressing review comments on the documentation, which is in a much better shape thanks to the efforts of Ben and Ingo. I was initially planning to split this into two pull requests so that you could run the coccinelle script yourself, however it's been plain sailing in linux-next so I've just included the whole lot here to keep things simple" * tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (23 commits) docs/memory-barriers.txt: Update I/O section to be clearer about CPU vs thread docs/memory-barriers.txt: Fix style, spacing and grammar in I/O section arch: Remove dummy mmiowb() definitions from arch code net/ethernet/silan/sc92031: Remove stale comment about mmiowb() i40iw: Redefine i40iw_mmiowb() to do nothing scsi/qla1280: Remove stale comment about mmiowb() drivers: Remove explicit invocations of mmiowb() drivers: Remove useless trailing comments from mmiowb() invocations Documentation: Kill all references to mmiowb() riscv/mmiowb: Hook up mmwiob() implementation to asm-generic code powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() mips/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() m68k/io: Remove useless definition of mmiowb() nds32/io: Remove useless definition of mmiowb() x86/io: Remove useless definition of mmiowb() arm64/io: Remove useless definition of mmiowb() ARM/io: Remove useless definition of mmiowb() mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors ...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 updates from Martin Schwidefsky: - Support for kernel address space layout randomization - Add support for kernel image signature verification - Convert s390 to the generic get_user_pages_fast code - Convert s390 to the stack unwind API analog to x86 - Add support for CPU directed interrupts for PCI devices - Provide support for MIO instructions to the PCI base layer, this will allow the use of direct PCI mappings in user space code - Add the basic KVM guest ultravisor interface for protected VMs - Add AT_HWCAP bits for several new hardware capabilities - Update the CPU measurement facility counter definitions to SVN 6 - Arnds cleanup patches for his quest to get LLVM compiles working - A vfio-ccw update with bug fixes and support for halt and clear - Improvements for the hardware TRNG code - Another round of cleanup for the QDIO layer - Numerous cleanups and bug fixes * tag 's390-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (98 commits) s390/vdso: drop unnecessary cc-ldoption s390: fix clang -Wpointer-sign warnigns in boot code s390: drop CONFIG_VIRT_TO_BUS s390: boot, purgatory: pass $(CLANG_FLAGS) where needed s390: only build for new CPUs with clang s390: simplify disabled_wait s390/ftrace: use HAVE_FUNCTION_GRAPH_RET_ADDR_PTR s390/unwind: introduce stack unwind API s390/opcodes: add missing instructions to the disassembler s390/bug: add entry size to the __bug_table section s390: use proper expoline sections for .dma code s390/nospec: rename assembler generated expoline thunks s390: add missing ENDPROC statements to assembler functions locking/lockdep: check for freed initmem in static_obj() s390/kernel: add support for kernel address space layout randomization (KASLR) s390/kernel: introduce .dma sections s390/sclp: do not use static sccbs s390/kprobes: use static buffer for insn_page s390/kernel: convert SYSCALL and PGM_CHECK handlers to .quad s390/kernel: build a relocatable kernel ...
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68kLinus Torvalds authored
Pull m68k updates from Geert Uytterhoeven: - drop arch_gettimeoffset and adopt clocksource API - defconfig updates * tag 'm68k-for-v5.2-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: Documentation/features/time: Mark m68k having modern-timekeeping m68k: defconfig: Update defconfigs for v5.1-rc1 m68k: mvme16x: Handle timer counter overflow m68k: mvme16x: Convert to clocksource API m68k: mvme147: Handle timer counter overflow m68k: mvme147: Convert to clocksource API m68k: mac: Convert to clocksource API m68k: hp300: Handle timer counter overflow m68k: hp300: Convert to clocksource API m68k: bvme6000: Convert to clocksource API m68k: atari: Convert to clocksource API m68k: amiga: Convert to clocksource API m68k: Drop ARCH_USES_GETTIMEOFFSET m68k: apollo, q40, sun3, sun3x: Remove arch_gettimeoffset implementations m68k: mac: Fix VIA timer counter accesses m68k: Call timer_interrupt() with interrupts disabled
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 microcode loading update from Borislav Petkov: "A nice Intel microcode blob loading cleanup which gets rid of the ugly memcpy wrappers and switches the driver to use the iov_iter API. By Jann Horn. In addition, the /dev/cpu/microcode interface is finally deprecated as it is inadequate for the same reasons the late microcode loading is" * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode: Deprecate MICROCODE_OLD_INTERFACE x86/microcode: Fix the ancient deprecated microcode loading method x86/microcode/intel: Refactor Intel microcode blob loading
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 topology updates from Ingo Molnar: "Two main changes: preparatory changes for Intel multi-die topology support, plus a syslog message tweak" * 'x86-topology-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/topology: Make DEBUG_HOTPLUG_CPU0 pr_info() more descriptive x86/smpboot: Rename match_die() to match_pkg() topology: Simplify cputopology.txt formatting and wording x86/topology: Fix documentation typo
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 timer updates from Ingo Molnar: "Two changes: an LTO improvement, plus the new 'nowatchdog' boot option to disable the clocksource watchdog" * 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/timer: Don't inline __const_udelay() x86/tsc: Add option to disable tsc clocksource watchdog
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 platform updates from Ingo Molnar: "Smaller update for Hyper-V to support EOI assist, plus LTO fixes" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kvm: Make steal_time visible x86/hyperv: Make hv_vcpu_is_preempted() visible x86/hyper-v: Implement EOI assist
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 mm updates from Ingo Molnar: "The changes in here are: - text_poke() fixes and an extensive set of executability lockdowns, to (hopefully) eliminate the last residual circumstances under which we are using W|X mappings even temporarily on x86 kernels. This required a broad range of surgery in text patching facilities, module loading, trampoline handling and other bits. - tweak page fault messages to be more informative and more structured. - remove DISCONTIGMEM support on x86-32 and make SPARSEMEM the default. - reduce KASLR granularity on 5-level paging kernels from 512 GB to 1 GB. - misc other changes and updates" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) x86/mm: Initialize PGD cache during mm initialization x86/alternatives: Add comment about module removal races x86/kprobes: Use vmalloc special flag x86/ftrace: Use vmalloc special flag bpf: Use vmalloc special flag modules: Use vmalloc special flag mm/vmalloc: Add flag for freeing of special permsissions mm/hibernation: Make hibernation handle unmapped pages x86/mm/cpa: Add set_direct_map_*() functions x86/alternatives: Remove the return value of text_poke_*() x86/jump-label: Remove support for custom text poker x86/modules: Avoid breaking W^X while loading modules x86/kprobes: Set instruction page as executable x86/ftrace: Set trampoline pages as executable x86/kgdb: Avoid redundant comparison of patched code x86/alternatives: Use temporary mm for text poking x86/alternatives: Initialize temporary mm for patching fork: Provide a function for copying init_mm uprobes: Initialize uprobes earlier x86/mm: Save debug registers when loading a temporary mm ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 kdump update from Ingo Molnar: "This includes two changes: - Raise the crash kernel reservation limit from from ~896MB to ~4GB. Only very old (and already known-broken) kexec-tools is supposed to be affected by this negatively. - Allow higher than 4GB crash kernel allocations when low allocations fail" * 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kdump: Fall back to reserve high crashkernel memory x86/kdump: Have crashkernel=X reserve under 4G by default
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 irq updates from Ingo Molnar: "Here are the main changes in this tree: - Introduce x86-64 IRQ/exception/debug stack guard pages to detect stack overflows immediately and deterministically. - Clean up over a decade worth of cruft accumulated. The outcome of this should be more clear-cut faults/crashes when any of the low level x86 CPU stacks overflow, instead of silent memory corruption and sporadic failures much later on" * 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) x86/irq: Fix outdated comments x86/irq/64: Remove stack overflow debug code x86/irq/64: Remap the IRQ stack with guard pages x86/irq/64: Split the IRQ stack into its own pages x86/irq/64: Init hardirq_stack_ptr during CPU hotplug x86/irq/32: Handle irq stack allocation failure proper x86/irq/32: Invoke irq_ctx_init() from init_IRQ() x86/irq/64: Rename irq_stack_ptr to hardirq_stack_ptr x86/irq/32: Rename hard/softirq_stack to hard/softirq_stack_ptr x86/irq/32: Make irq stack a character array x86/irq/32: Define IRQ_STACK_SIZE x86/dumpstack/64: Speedup in_exception_stack() x86/exceptions: Split debug IST stack x86/exceptions: Enable IST guard pages x86/exceptions: Disconnect IST index and stack order x86/cpu: Remove orig_ist array x86/cpu: Prepare TSS.IST setup for guard pages x86/dumpstack/64: Use cpu_entry_area instead of orig_ist x86/irq/64: Use cpu entry area instead of orig_ist x86/traps: Use cpu_entry_area instead of orig_ist ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 entry cleanup from Ingo Molnar: "A single commit that removes a redundant complication from preempt-schedule handling in the x86 entry code" * 'x86-entry-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/entry: Remove unneeded need_resched() loop
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cpu updates from Ingo Molnar: "Two changes: a Hygon CPU fix, and an optimization Centaur CPUs" * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/power: Optimize C3 entry on Centaur CPUs x86/CPU/hygon: Fix phys_proc_id calculation logic for multi-die processors
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cleanups from Ingo Molnar: "A handful of cleanups: dma-ops cleanups, missing boot time kcalloc() check, a Sparse fix and use struct_size() to simplify a vzalloc() call" * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pci: Clean up usage of X86_DEV_DMA_OPS x86/Kconfig: Remove the unused X86_DMA_REMAP KConfig symbol x86/kexec/crash: Use struct_size() in vzalloc() x86/mm/tlb: Define LOADED_MM_SWITCHING with pointer-sized number x86/platform/uv: Fix missing checks of kcalloc() return values
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cache QoS updates from Ingo Molnar: "An RDT cleanup and a fix for RDT initialization of new resource groups" * 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Initialize a new resource group with default MBA values x86/resctrl: Move per RDT domain initialization to a separate function
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 build updates from Ingo Molnar: "Misc updates: - Add link flag quirk to solve LLVM linker bug that removes local relocations, causing KASLR boot failures. - Update the defconfigs to remove archaic partition table support - Fix kernel growing pains: we had a bug in relocs.c handling section header table entries count larger than 0xff00 (~65k), which can happen with the -ffunction-sections flag, causing a build failure with a cryptic error message. Add support for detecting the limit and using the ELF protocol that extends the sections table via ->sh_size. The new limit is now much larger - over a billion entries?" * 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tools/relocs: Fix big section header tables x86/defconfig: Remove archaic partition tables support x86/build: Keep local relocations with ld.lld
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 asm updates from Ingo Molnar: "This includes the following changes: - cpu_has() cleanups - sync_bitops.h modernization to the rmwcc.h facility, similarly to bitops.h - continued LTO annotations/fixes - misc cleanups and smaller cleanups" * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/um/vdso: Drop unnecessary cc-ldoption x86/vdso: Rename variable to fix -Wshadow warning x86/cpu/amd: Exclude 32bit only assembler from 64bit build x86/asm: Mark all top level asm statements as .text x86/build/vdso: Add FORCE to the build rule of %.so x86/asm: Modernize sync_bitops.h x86/mm: Convert some slow-path static_cpu_has() callers to boot_cpu_has() x86: Convert some slow-path static_cpu_has() callers to boot_cpu_has() x86/asm: Clarify static_cpu_has()'s intended use x86/uaccess: Fix implicit cast of __user pointer x86/cpufeature: Remove __pure attribute to _static_cpu_has()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 apic update from Ingo Molnar: "A single commit which unifies the unnecessarily diverged implementations of APIC timer initialization. As a result the max_delta parameter is now consistently taken into account" * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apic: Unify duplicated local apic timer clockevent initialization
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer updates from Ingo Molnar: "This cycle had the following changes: - Timer tracing improvements (Anna-Maria Gleixner) - Continued tasklet reduction work: remove the hrtimer_tasklet (Thomas Gleixner) - Fix CPU hotplug remove race in the tick-broadcast mask handling code (Thomas Gleixner) - Force upper bound for setting CLOCK_REALTIME, to fix ABI inconsistencies with handling values that are close to the maximum supported and the vagueness of when uptime related wraparound might occur. Make the consistent maximum the year 2232 across all relevant ABIs and APIs. (Thomas Gleixner) - various cleanups and smaller fixes" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick: Fix typos in comments tick/broadcast: Fix warning about undefined tick_broadcast_oneshot_offline() timekeeping: Force upper bound for setting CLOCK...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull CPU hotplug updates from Ingo Molnar: "Two changes in this cycle: - Make the /sys/devices/system/cpu/smt/* files available on all arches, so user space has a consistent way to detect whether SMT is enabled. - Sparse annotation fix" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smpboot: Place the __percpu annotation correctly cpu/hotplug: Create SMT sysfs interface for all arches
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler updates from Ingo Molnar: "The main changes in this cycle were: - Make nohz housekeeping processing more permissive and less intrusive to isolated CPUs - Decouple CPU-bound workqueue acconting from the scheduler and move it into the workqueue code. - Optimize topology building - Better handle quota and period overflows - Add more RCU annotations - Comment updates, misc cleanups" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) nohz_full: Allow the boot CPU to be nohz_full sched/isolation: Require a present CPU in housekeeping mask kernel/cpu: Allow non-zero CPU to be primary for suspend / kexec freeze power/suspend: Add function to disable secondaries for suspend sched/core: Allow the remote scheduler tick to be started on CPU0 sched/nohz: Run NOHZ idle load balancer on HK_FLAG_MISC CPUs sched/debug: Fix spelling mistake "logaritmic" -> "logarithmic" sched/topology: Update init_sched_domains() comment cgroup/cpuset: Update stale generate_sched_domains() comments sched/core: Check quota and period overflow at usec to nsec conversion sched/core: Handle overflow in cpu_shares_write_u64 sched/rt: Check integer overflow at usec to nsec conversion sched/core: Fix typo in comment sched/core: Make some functions static sched/core: Unify p->on_rq updates sched/core: Remove ttwu_activate() sched/core, workqueues: Distangle worker accounting from rq lock sched/fair: Remove unneeded prototype of capacity_of() sched/topology: Skip duplicate group rewrites in build_sched_groups() sched/topology: Fix build_sched_groups() comment ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf updates from Ingo Molnar: "The main kernel changes were: - add support for Intel's "adaptive PEBS v4" - which embedds LBS data in PEBS records and can thus batch up and reduce the IRQ (NMI) rate significantly - reducing overhead and making call-graph profiling less intrusive. - add Intel CPU core and uncore support updates for Tremont, Icelake, - extend the x86 PMU constraints scheduler with 'constraint ranges' to better support Icelake hw constraints, - make x86 call-chain support work better with CONFIG_FRAME_POINTER=y - misc other changes Tooling changes: - updates to the main tools: 'perf record', 'perf trace', 'perf stat' - updated Intel and S/390 vendor events - libtraceevent updates - misc other updates and fixes" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (69 commits) perf/x86: Make perf callchains work without CONFIG_FRAME_POINTER watchdog: Fix typo in comment perf/x86/intel: Add Tremont core PMU support perf/x86/intel/uncore: Add Intel Icelake uncore support perf/x86/msr: Add Icelake support perf/x86/intel/rapl: Add Icelake support perf/x86/intel/cstate: Add Icelake support perf/x86/intel: Add Icelake support perf/x86: Support constraint ranges perf/x86/lbr: Avoid reading the LBRs when adaptive PEBS handles them perf/x86/intel: Support adaptive PEBS v4 perf/x86/intel/ds: Extract code of event update in short period perf/x86/intel: Extract memory code PEBS parser for reuse perf/x86: Support outputting XMM registers perf/x86/intel: Force resched when TFA sysctl is modified perf/core: Add perf_pmu_resched() as global function perf/headers: Fix stale comment for struct perf_addr_filter perf/core: Make perf_swevent_init_cpu() static perf/x86: Add sanity checks to x86_schedule_events() perf/x86: Optimize x86_schedule_events() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking updates from Ingo Molnar: "Here are the locking changes in this cycle: - rwsem unification and simpler micro-optimizations to prepare for more intrusive (and more lucrative) scalability improvements in v5.3 (Waiman Long) - Lockdep irq state tracking flag usage cleanups (Frederic Weisbecker) - static key improvements (Jakub Kicinski, Peter Zijlstra) - misc updates, cleanups and smaller fixes" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits) locking/lockdep: Remove unnecessary unlikely() locking/static_key: Don't take sleeping locks in __static_key_slow_dec_deferred() locking/static_key: Factor out the fast path of static_key_slow_dec() locking/static_key: Add support for deferred static branches locking/lockdep: Test all incompatible scenarios at once in check_irq_usage() locking/lockdep: Avoid bogus Clang w...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq updates from Ingo Molnar: "The changes in this cycle were: - Remove the irq timings/variance statistics code that tried to predict when the next interrupt would occur, which didn't work out as hoped and is replaced by another mechanism. - This new mechanism is the 'array suffix computation' estimate, which is superior to the previous one as it can detect not just a single periodic pattern, but independent periodic patterns along a log-2 scale of bucketing and exponential moving average. The comments are longer than the code - and it works better at predicting various complex interrupt patterns from real-world devices than the previous estimate. - avoid IRQ-work self-IPIs on the local CPU - fix work-list corruption in irq_set_affinity_notifier()" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irq_work: Do not raise an IPI when queueing work on the local CPU genirq/devres: Use struct_size() in devm_kzalloc() genirq/timings: Add array suffix computation code genirq/timings: Remove variance computation code genirq: Prevent use-after-free and work list corruption
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull EFI updates from Ingo Molnar: "The changes in this cycle were: - Squash a spurious warning when using the EFI framebuffer on a non-EFI boot - Use DMI data to annotate RAS memory errors on ARM just like we do on Intel - Followup cleanups for DMI - libstub Makefile cleanups" * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/libstub/arm: Omit unneeded stripping of ksymtab/kcrctab sections efi: Unify DMI setup code over the arm/arm64, ia64 and x86 architectures efi/arm: Show SMBIOS bank/device location in CPER and GHES error logs efifb: Omit memory map check on legacy boot efi/libstub: Refactor the cmd_stubcopy Makefile command
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull stack trace updates from Ingo Molnar: "So Thomas looked at the stacktrace code recently and noticed a few weirdnesses, and we all know how such stories of crummy kernel code meeting German engineering perfection end: a 45-patch series to clean it all up! :-) Here's the changes in Thomas's words: 'Struct stack_trace is a sinkhole for input and output parameters which is largely pointless for most usage sites. In fact if embedded into other data structures it creates indirections and extra storage overhead for no benefit. Looking at all usage sites makes it clear that they just require an interface which is based on a storage array. That array is either on stack, global or embedded into some other data structure. Some of the stack depot usage sites are outright wrong, but fortunately the wrongness just causes more stack being used for nothing and does not...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull speculation mitigation update from Ingo Molnar: "This adds the "mitigations=" bootline option, which offers a cross-arch set of options that will work on x86, PowerPC and s390 that will map to the arch specific option internally" * 'core-speculation-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: s390/speculation: Support 'mitigations=' cmdline option powerpc/speculation: Support 'mitigations=' cmdline option x86/speculation: Support 'mitigations=' cmdline option cpu/speculation: Add 'mitigations=' cmdline option
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull rseq updates from Ingo Molnar: "A cleanup and a fix to comments" * 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rseq: Remove superfluous rseq_len from task_struct rseq: Clean up comments by reflecting removal of event counter
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RCU updates from Ingo Molnar: "This cycles's RCU changes include: - a couple of straggling RCU flavor consolidation updates - SRCU updates - RCU CPU stall-warning updates - torture-test updates - an LKMM commit adding support for synchronize_srcu_expedited() - documentation updates - miscellaneous fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits) net/ipv4/netfilter: Update comment from call_rcu_bh() to call_rcu() tools/memory-model: Add support for synchronize_srcu_expedited() doc/kprobes: Update obsolete RCU update functions torture: Suppress false-positive CONFIG_INITRAMFS_SOURCE complaint locktorture: NULL cxt.lwsa and cxt.lrsa to allow bad-arg detection rcuperf: Fix cleanup path for invalid perf_type strings rcutorture: Fix cleanup path for invalid torture_type strings rcutorture: Fix expected forward progress duration in OOM notifier rcutorture: Remove ->ext_irq_conflict field rcutorture: Make rcutorture_extend_mask() comment match the code tools/.../rcutorture: Convert to SPDX license identifier torture: Don't try to offline the last CPU rcu: Fix nohz status in stall warning rcu: Move forward-progress checkers into tree_stall.h rcu: Move irq-disabled stall-warning checking to tree_stall.h rcu: Organize functions in tree_stall.h rcu: Move FAST_NO_HZ stall-warning code to tree_stall.h rcu: Inline RCU stall-warning info helper functions rcu: Move rcu_print_task_exp_stall() to tree_exp.h rcu: Inline RCU task stall-warning helper functions ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull objtool updates from Ingo Molnar: "This is a series from Peter Zijlstra that adds x86 build-time uaccess validation of SMAP to objtool, which will detect and warn about the following uaccess API usage bugs and weirdnesses: - call to %s() with UACCESS enabled - return with UACCESS enabled - return with UACCESS disabled from a UACCESS-safe function - recursive UACCESS enable - redundant UACCESS disable - UACCESS-safe disables UACCESS As it turns out not leaking uaccess permissions outside the intended uaccess functionality is hard when the interfaces are complex and when such bugs are mostly dormant. As a bonus we now also check the DF flag. We had at least one high-profile bug in that area in the early days of Linux, and the checking is fairly simple. The checks performed and warnings emitted are: - call to %s() with DF set - return with DF set - return with ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull unified TLB flushing from Ingo Molnar: "This contains the generic mmu_gather feature from Peter Zijlstra, which is an all-arch unification of TLB flushing APIs, via the following (broad) steps: - enhance the <asm-generic/tlb.h> APIs to cover more arch details - convert most TLB flushing arch implementations to the generic <asm-generic/tlb.h> APIs. - remove leftovers of per arch implementations After this series every single architecture makes use of the unified TLB flushing APIs" * 'core-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: mm/resource: Use resource_overlaps() to simplify region_intersects() ia64/tlb: Eradicate tlb_migrate_finish() callback asm-generic/tlb: Remove tlb_table_flush() asm-generic/tlb: Remove tlb_flush_mmu_free() asm-generic/tlb: Remove CONFIG_HAVE_GENERIC_MMU_GATHER asm-generic/tlb: Remove arch_tlb*_mmu() s390/tlb: Convert to generic mmu_gather asm-generic/tlb: Introduce CONFIG_HAVE_MMU_GATHER_NO_GATHER=y arch/tlb: Clean up simple architectures um/tlb: Convert to generic mmu_gather sh/tlb: Convert SH to generic mmu_gather ia64/tlb: Convert to generic mmu_gather arm/tlb: Convert to generic mmu_gather asm-generic/tlb, arch: Invert CONFIG_HAVE_RCU_TABLE_INVALIDATE asm-generic/tlb, ia64: Conditionally provide tlb_migrate_finish() asm-generic/tlb: Provide generic tlb_flush() based on flush_tlb_mm() asm-generic/tlb, arch: Provide generic tlb_flush() based on flush_tlb_range() asm-generic/tlb, arch: Provide generic VIPT cache flush asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE asm-generic/tlb: Provide a comment
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Linus Torvalds authored
Make the forward declaration actually match the real function definition, something that previous versions of gcc had just ignored. This is another patch to fix new warnings from gcc-9 before I start the merge window pulls. I don't want to miss legitimate new warnings just because my system update brought a new compiler with new warnings. Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Andrey Ryabinin authored
The kernel the kernel is built with -Wvla for some time, so is not supposed to have any variable length arrays. Remove vla bounds checking from ubsan since it's useless now. Signed-off-by:
Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Andrey Ryabinin authored
Building lib/ubsan.c with gcc-9 results in a ton of nasty warnings like this one: lib/ubsan.c warning: conflicting types for built-in function ‘__ubsan_handle_negate_overflow’; expected ‘void(void *, void *)’ [-Wbuiltin-declaration-mismatch] The kernel's declarations of __ubsan_handle_*() often uses 'unsigned long' types in parameters while GCC these parameters as 'void *' types, hence the mismatch. Fix this by using 'void *' to match GCC's declarations. Reported-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Andrey Ryabinin <aryabinin@virtuozzo.com> Fixes: c6d30853 ("UBSAN: run-time undefined behavior sanity checker") Cc: <stable@vger.kernel.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- May 06, 2019
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Geert Uytterhoeven authored
M68k no longer uses arch_gettimeoffset. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org>
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Rafael J. Wysocki authored
* pm-devfreq: PM / devfreq: add tracing for scheduling work trace: events: add devfreq trace event file PM / devfreq: rk3399_dmc: Pass ODT and auto power down parameters to TF-A. PM / devfreq: rockchip-dfi: Move GRF definitions to a common place. PM / devfreq: exynos-bus: Suspend all devices on system shutdown PM / devfreq: Fix static checker warning in try_then_request_governor PM / devfreq: Restart previous governor if new governor fails to start PM / devfreq: tegra: remove unneeded variable PM / devfreq: rockchip-dfi: remove unneeded semicolon PM / devfreq: rk3399_dmc: remove unneeded semicolon PM / devfreq: consistent indentation PM / devfreq: fix missing check of return value in devfreq_add_device() PM / devfreq: fix mem leak in devfreq_add_device() PM / devfreq: Use of_node_name_eq for node name comparisons * pm-domains: PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name() PM / Domains: Search for the CPU device outside the genpd lock PM / Domains: Drop unused in-parameter to some genpd functions PM / Domains: Use the base device for driver_deferred_probe_check_state() PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain PM / Domains: Allow OF lookup for multi PM domain case from ->attach_dev() PM / Domains: Don't kfree() the virtual device in the error path PM / Domains: remove unnecessary unlikely()
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