linux/drivers/clocksource, branch v4.6

Merge branches 'perf-urgent-for-linus', 'smp-urgent-for-linus' and 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2016-04-23T18:45:52Z

Pull perf, cpu hotplug and timer fixes from Ingo Molnar: "perf: - A single tooling fix for a user-triggerable segfault. CPU hotplug: - Fix a CPU hotplug corner case regression, introduced by the recent hotplug rework timers: - Fix a boot hang in the ARM based Tango SoC clocksource driver" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf intel-pt: Fix segfault tracing transactions * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Fix rollback during error-out in __cpu_disable() * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource/drivers/tango-xtal: Fix boot hang due to incorrect test

clocksource/drivers/tango-xtal: Fix boot hang due to incorrect test

2016-04-22T07:22:37Z

Commit 0881841f7e78 introduced a regression by inverting a test check after calling clocksource_mmio_init(). That results on the system to hang at boot time. Fix it by inverting the test again. Fixes: 0881841f7e78 ("Replace code by clocksource_mmio_init") Reported-by: Marc Gonzalez Signed-off-by: Daniel Lezcano

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2016-03-24T17:32:42Z

Pull timer fix from Thomas Gleixner: "A single fix to the pistachio clocksource driver using the proper signedness in the error print format" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource/drivers/pistachio: Correct output format of PTR_ERR()

clocksource/drivers/pistachio: Correct output format of PTR_ERR()

2016-03-23T11:30:40Z

Use signed integer output in the pr_err() string format, here PTR_ERR() value is negative and it should be reported in human readable way. Signed-off-by: Vladimir Zapolskiy Cc: Jisheng Zhang Cc: Ezequiel Garcia Cc: Daniel Lezcano Link: http://lkml.kernel.org/r/1458603727-4446-1-git-send-email-vz@mleia.com Signed-off-by: Thomas Gleixner

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2016-03-16T16:55:35Z

Pull KVM updates from Paolo Bonzini: "One of the largest releases for KVM... Hardly any generic changes, but lots of architecture-specific updates. ARM: - VHE support so that we can run the kernel at EL2 on ARMv8.1 systems - PMU support for guests - 32bit world switch rewritten in C - various optimizations to the vgic save/restore code. PPC: - enabled KVM-VFIO integration ("VFIO device") - optimizations to speed up IPIs between vcpus - in-kernel handling of IOMMU hypercalls - support for dynamic DMA windows (DDW). s390: - provide the floating point registers via sync regs; - separated instruction vs. data accesses - dirty log improvements for huge guests - bugfixes and documentation improvements. x86: - Hyper-V VMBus hypercall userspace exit - alternative implementation of lowest-priority interrupts using vector hashing (for better VT-d posted interrupt support) - fixed guest debugging with nested virtualizations - improved interrupt tracking in the in-kernel IOAPIC - generic infrastructure for tracking writes to guest memory - currently its only use is to speedup the legacy shadow paging (pre-EPT) case, but in the future it will be used for virtual GPUs as well - much cleanup (LAPIC, kvmclock, MMU, PIT), including ubsan fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (217 commits) KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch KVM: x86: disable MPX if host did not enable MPX XSAVE features arm64: KVM: vgic-v3: Only wipe LRs on vcpu exit arm64: KVM: vgic-v3: Reset LRs at boot time arm64: KVM: vgic-v3: Do not save an LR known to be empty arm64: KVM: vgic-v3: Save maintenance interrupt state only if required arm64: KVM: vgic-v3: Avoid accessing ICH registers KVM: arm/arm64: vgic-v2: Make GICD_SGIR quicker to hit KVM: arm/arm64: vgic-v2: Only wipe LRs on vcpu exit KVM: arm/arm64: vgic-v2: Reset LRs at boot time KVM: arm/arm64: vgic-v2: Do not save an LR known to be empty KVM: arm/arm64: vgic-v2: Move GICH_ELRSR saving to its own function KVM: arm/arm64: vgic-v2: Save maintenance interrupt state only if required KVM: arm/arm64: vgic-v2: Avoid accessing GICH registers KVM: s390: allocate only one DMA page per VM KVM: s390: enable STFLE interpretation only if enabled for the guest KVM: s390: wake up when the VCPU cpu timer expires KVM: s390: step the VCPU timer while in enabled wait KVM: s390: protect VCPU cpu timer with a seqcount KVM: s390: step VCPU cpu timer during kvm_run ioctl ...

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2016-03-15T19:13:56Z

Pull timer updates from Thomas Gleixner: "The timer department delivers this time: - Support for cross clock domain timestamps in the core code plus a first user. That allows more precise timestamping for PTP and later for audio and other peripherals. The ptp/e1000e patches have been acked by the relevant maintainers and are carried in the timer tree to avoid merge ordering issues. - Support for unregistering the current clocksource watchdog. That lifts a limitation for switching clocksources which has been there from day 1 - The usual pile of fixes and updates to the core and the drivers. Nothing outstanding and exciting" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits) time/timekeeping: Work around false positive GCC warning e1000e: Adds hardware supported cross timestamp on e1000e nic ptp: Add PTP_SYS_OFFSET_PRECISE for driver crosstimestamping x86/tsc: Always Running Timer (ART) correlated clocksource hrtimer: Revert CLOCK_MONOTONIC_RAW support time: Add history to cross timestamp interface supporting slower devices time: Add driver cross timestamp interface for higher precision time synchronization time: Remove duplicated code in ktime_get_raw_and_real() time: Add timekeeping snapshot code capturing system time and counter time: Add cycles to nanoseconds translation jiffies: Use CLOCKSOURCE_MASK instead of constant clocksource: Introduce clocksource_freq2mult() clockevents/drivers/exynos_mct: Implement ->set_state_oneshot_stopped() clockevents/drivers/arm_global_timer: Implement ->set_state_oneshot_stopped() clockevents/drivers/arm_arch_timer: Implement ->set_state_oneshot_stopped() clocksource/drivers/arm_global_timer: Register delay timer clocksource/drivers/lpc32xx: Support timer-based ARM delay clocksource/drivers/lpc32xx: Support periodic mode clocksource/drivers/lpc32xx: Don't use the prescaler counter for clockevents clocksource/drivers/rockchip: Add err handle for rk_timer_init ...

arm64: Allow the arch timer to use the HYP timer

2016-02-29T18:34:16Z

With the ARMv8.1 VHE, the kernel can run in HYP mode, and thus use the HYP timer instead of the normal guest timer in a mostly transparent way, except for the interrupt line. This patch reworks the arch timer code to allow the selection of the HYP PPI, possibly falling back to the guest timer if not available. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

clockevents/drivers/exynos_mct: Implement ->set_state_oneshot_stopped()

2016-02-25T13:34:08Z

set_state_oneshot_stopped() is called by the clkevt core, when the next event is required at an expiry time of 'KTIME_MAX'. This normally happens with NO_HZ_{IDLE|FULL} in both LOWRES/HIGHRES modes. This patch makes the clockevent device to stop on such an event, to avoid spurious interrupts, as explained by: commit 8fff52fd5093 ("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state"). Signed-off-by: Viresh Kumar Signed-off-by: Daniel Lezcano

clockevents/drivers/arm_global_timer: Implement ->set_state_oneshot_stopped()

2016-02-25T13:34:06Z

clockevents/drivers/arm_arch_timer: Implement ->set_state_oneshot_stopped()

2016-02-25T13:34:05Z