user/sven/linux.git/include/clocksource/arm_arch_timer.h, branch v4.14.36

clocksource: arm_arch_timer: add structs to describe MMIO timer

2017-04-19T15:11:48Z

In preparation for ACPI GTDT support, this patch adds structs to describe the MMIO timers indepedent of the firmware interface. Subsequent patches will use these to split the FW/HW probing logic, so that the HW probing logic can be shared by ACPI and DT. Signed-off-by: Fu Wei Reviewed-by: Hanjun Guo Signed-off-by: Mark Rutland

clocksource: arm_arch_timer: add a new enum for spi type

2017-04-10T13:29:54Z

This patch add a new enum "arch_timer_spi_nr" and use it in the driver. Just for code's readability, no functional change. Signed-off-by: Fu Wei Acked-by: Mark Rutland Signed-off-by: Mark Rutland

clocksource: arm_arch_timer: move enums and defines to header file

2017-04-10T13:29:54Z

To support the arm_arch_timer via ACPI we need to share defines and enums between the driver and the ACPI parser code. So we split out the relevant defines and enums into arm_arch_timer.h. No functional change. Signed-off-by: Fu Wei Acked-by: Mark Rutland Tested-by: Xiongfeng Wang Signed-off-by: Mark Rutland

clocksource: arm_arch_timer: Remove arch_timer_get_timecounter

2016-05-03T10:54:21Z

The only call of arch_timer_get_timecounter (in KVM) has been removed. Signed-off-by: Julien Grall Acked-by: Christoffer Dall Signed-off-by: Christoffer Dall

clocksource: arm_arch_timer: Extend arch_timer_kvm_info to get the virtual IRQ

2016-05-03T10:54:21Z

Currently, the firmware table is parsed by the virtual timer code in order to retrieve the virtual timer interrupt. However, this is already done by the arch timer driver. To avoid code duplication, extend arch_timer_kvm_info to get the virtual IRQ. Note that the KVM code will be modified in a subsequent patch. Signed-off-by: Julien Grall Acked-by: Christoffer Dall Signed-off-by: Christoffer Dall

clocksource: arm_arch_timer: Gather KVM specific information in a structure

2016-05-03T10:54:20Z

Introduce a structure which are filled up by the arch timer driver and used by the virtual timer in KVM. The first member of this structure will be the timecounter. More members will be added later. A stub for the new helper isn't introduced because KVM requires the arch timer for both ARM64 and ARM32. The function arch_timer_get_timecounter is kept for the time being and will be dropped in a subsequent patch. Signed-off-by: Julien Grall Acked-by: Christoffer Dall Signed-off-by: Christoffer Dall

arm64: KVM: Implement timer save/restore

2015-12-14T11:30:39Z

Implement the timer save restore as a direct translation of the assembly code version. Signed-off-by: Marc Zyngier

time: move the timecounter/cyclecounter code into its own file.

2014-12-30T23:29:25Z

The timecounter code has almost nothing to do with the clocksource code. Let it live in its own file. This will help isolate the timecounter users from the clocksource users in the source tree. Signed-off-by: Richard Cochran Acked-by: Jeff Kirsher Signed-off-by: David S. Miller

drivers: clocksource: add support for ARM architected timer event stream

2013-09-26T08:48:00Z

The ARM architected timer can generate events (used for waking up CPUs executing the wfe instruction) at a frequency represented as a power-of-2 divisor of the clock rate. An event stream might be used: - To implement wfe-based timeouts for userspace locking implementations. - To impose a timeout on a wfe for safeguarding against any programming error in case an expected event is not generated. This patch computes the event stream frequency aiming for a period of 100us between events. It uses ARM/ARM64 specific backends to configure and enable the event stream. Cc: Lorenzo Pieralisi Reviewed-by: Catalin Marinas Acked-by: Olof Johansson Signed-off-by: Will Deacon [sudeep: moving ARM/ARM64 changes into separate patches and adding Kconfig option] Signed-off-by: Sudeep KarkadaNagesha

ARM/ARM64: arch_timer: add macros for bits in control register

2013-09-26T08:47:06Z

Add macros to describe the bitfields in the ARM architected timer control register to make code easy to understand. Reviewed-by: Lorenzo Pieralisi Reviewed-by: Will Deacon Acked-by: Catalin Marinas Acked-by: Olof Johansson Signed-off-by: Sudeep KarkadaNagesha