BMC/Intel-BMC/linux.git/drivers/clocksource, branch dev-4.7

Merge tag 'v4.7.6' into dev-4.7

2016-10-06T00:55:38+00:00

This is the 4.7.6 stable release

clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function

2016-09-24T08:09:23+00:00

commit b53e7d000d9e6e9fd2c6eb6b82d2783c67fd599e upstream. The bootloader (U-boot) sometimes uses this timer for various delays. It uses it as a ongoing counter, and does comparisons on the current counter value. The timer counter is never stopped. In some cases when the user interacts with the bootloader, or lets it idle for some time before loading Linux, the timer may expire, and an interrupt will be pending. This results in an unexpected interrupt when the timer interrupt is enabled by the kernel, at which point the event_handler isn't set yet. This results in a NULL pointer dereference exception, panic, and no way to reboot. Clear any pending interrupts after we stop the timer in the probe function to avoid this. Signed-off-by: Chen-Yu Tsai Signed-off-by: Daniel Lezcano Acked-by: Maxime Ripard Signed-off-by: Greg Kroah-Hartman

drivers/clocksource/moxart: Add Aspeed support

2016-08-09T06:22:14+00:00

The Aspeed SoC has timer IP with a very similar register layout to the moxart timer. This patch adds support for the fourth and fifth gen aspeed SoCs, and has been tested on the ast2400 and ast2500. Signed-off-by: Joel Stanley

drivers/clocksource/moxart: Use struct to hold state

2016-08-09T06:22:13+00:00

Add a struct moxart_timer to hold the driver state, including the irqaction and struct clock_event_device. Most importantly this holds values for enabling and disabling the timer, so future support can be added for devices that use different bits for enable/disable. In preparation for future hardware support we add a MOXART prefix to the existing values. Signed-off-by: Joel Stanley

drivers/clocksource/moxart: Refactor enable/disable

2016-08-09T06:22:13+00:00

Signed-off-by: Joel Stanley (cherry picked from commit 71ed9dcdd9a839ce4d77911cc92aabfb9e40a641) Signed-off-by: Joel Stanley

clocksource/drivers/moxart: Convert init function to return error

2016-08-09T06:22:12+00:00

The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano (cherry picked from commit b7357e656ca45dd57ef02f2a1be513af2b80579c) Signed-off-by: Joel Stanley

clocksource/drivers/moxart: Add the COMPILE_TEST option

2016-08-09T06:22:11+00:00

Change the Kconfig option logic to fullfil with the current approach. A new Kconfig option is added, CONFIG_MOXART_TIMER and is selected by the platform. Then the clocksource's Kconfig is changed to make this option selectable by the user if the COMPILE_TEST option is set. Otherwise, it is up to the platform's Kconfig to select the timer. Signed-off-by: Daniel Lezcano (cherry picked from commit 419be9e36cf2349f15d0b7280ba46be6f9da7a61) Signed-off-by: Joel Stanley

clocksource/drivers/clksrc-probe: Introduce init functions with return code

2016-08-09T06:22:11+00:00

Currently, the clksrc-probe is not able to handle any error from the init functions. There are different issues with the current code: - the code is duplicated in the init functions by writing error - every driver tends to panic in its own init function - counting the number of clocksources is not reliable This patch adds another table to store the functions returning an error. The table is temporary while we convert all the drivers to return an error and will disappear. Signed-off-by: Daniel Lezcano (cherry picked from commit b7c4db861683af5fc50ac3cb3751cf847d765211) Signed-off-by: Joel Stanley

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

2016-05-19T18:27:09+00:00

Pull KVM updates from Paolo Bonzini: "Small release overall. x86: - miscellaneous fixes - AVIC support (local APIC virtualization, AMD version) s390: - polling for interrupts after a VCPU goes to halted state is now enabled for s390 - use hardware provided information about facility bits that do not need any hypervisor activity, and other fixes for cpu models and facilities - improve perf output - floating interrupt controller improvements. MIPS: - miscellaneous fixes PPC: - bugfixes only ARM: - 16K page size support - generic firmware probing layer for timer and GIC Christoffer Dall (KVM-ARM maintainer) says: "There are a few changes in this pull request touching things outside KVM, but they should all carry the necessary acks and it made the merge process much easier to do it this way." though actually the irqchip maintainers' acks didn't make it into the patches. Marc Zyngier, who is both irqchip and KVM-ARM maintainer, later acked at http://mid.gmane.org/573351D1.4060303@arm.com ('more formally and for documentation purposes')" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (82 commits) KVM: MTRR: remove MSR 0x2f8 KVM: x86: make hwapic_isr_update and hwapic_irr_update look the same svm: Manage vcpu load/unload when enable AVIC svm: Do not intercept CR8 when enable AVIC svm: Do not expose x2APIC when enable AVIC KVM: x86: Introducing kvm_x86_ops.apicv_post_state_restore svm: Add VMEXIT handlers for AVIC svm: Add interrupt injection via AVIC KVM: x86: Detect and Initialize AVIC support svm: Introduce new AVIC VMCB registers KVM: split kvm_vcpu_wake_up from kvm_vcpu_kick KVM: x86: Introducing kvm_x86_ops VCPU blocking/unblocking hooks KVM: x86: Introducing kvm_x86_ops VM init/destroy hooks KVM: x86: Rename kvm_apic_get_reg to kvm_lapic_get_reg KVM: x86: Misc LAPIC changes to expose helper functions KVM: shrink halt polling even more for invalid wakeups KVM: s390: set halt polling to 80 microseconds KVM: halt_polling: provide a way to qualify wakeups during poll KVM: PPC: Book3S HV: Re-enable XICS fast path for irqfd-generated interrupts kvm: Conditionally register IRQ bypass consumer ...

Merge tag 'arc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

2016-05-19T16:46:18+00:00

Pull ARC updates from Vineet Gupta: "We have a relatively big changeset for ARC for 4.7. The highlight is support for EZChip (now Mellanox) NPS-400 network processor, a 400-Gb throughput C-programmable packet processor based on ARC700 cores from Synopsys. See http://www.mellanox.com/related-docs/prod_npu/PB_NPS-400.pdf Also present are irqchip and clocksource drivers for NPS as agreed with respective maintainers to go via ARC tree due to an soc header dependency. I have the needed ACKs from Jason, Marc, Daniel. You might run into a trivial merge conflict in drivers/irqchip/* This EZChip platform support required some deep changes in ARC architecture code and also opportunity to cleanup past sins (legacy irq domains, missing irq domain lookup, hard coded timer irqs...) Summary: - Support for EZChip (now Mellanox) NPS-400 Network processor based on ARC700 - NPS interrupt controller and clocksource drivers - ARC timers probed off DT - ARC iqrchips switching to linear domain (upgrade from legacy domains)" * tag 'arc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (37 commits) arc: axs103_smp: Fix CPU frequency to 100MHz for dual-core arc: axs10x: Add DT bindings for I2S PLL Clock ARC: pae: STRICT_MM_TYPECHECKS was broken ARC: Add eznps platform to Kconfig and Makefile ARC: [plat-eznps] Use dedicated COMMAND_LINE_SIZE ARC: [plat-eznps] Use dedicated cpu_relax() ARC: [plat-eznps] Use dedicated identity auxiliary register. ARC: [plat-eznps] Use dedicated SMP barriers ARC: [plat-eznps] Use dedicated atomic/bitops/cmpxchg ARC: [plat-eznps] Use dedicated user stack top ARC: [plat-eznps] Add eznps platform ARC: [plat-eznps] Add eznps board defconfig and dts ARC: Mark secondary cpu online only after all HW setup is done ARC: rwlock: disable interrupts in !LLSC variant ARC: Make vmalloc size configurable ARC: clean out UAPI byteorder.h clean off Kconfig symbol irqchip: add nps Internal and external irqchips clocksource: Add NPS400 timers driver soc: Support for EZchip SoC Documentation: Add EZchip vendor to binding list ...