pm24.git/drivers/clocksource, branch v4.19-rc4

Merge tag 'riscv-for-linus-4.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

2018-08-19T16:56:38Z

Pull RISC-V updates from Palmer Dabbelt: "This contains some major improvements to the RISC-V port, including the necessary interrupt controller and timer support to actually make it to userspace. Support for three devices has been added: - the ISA-mandated timers on RISC-V systems. - the ISA-mandated first-level interrupt controller on RISC-V systems, which is handled as part of our core arch code because it's very small and tightly tied to the ISA. - SiFive's platform-level interrupt controller, which talks to the actual devices. In addition to these new devices, there are a handful of cleanups all over the RISC-V tree: - build fixes for various configurations: * A fix to the vDSO build's makefile so it respects CFLAGS. * The addition of __lshrti3, a libgcc derived function necessary for some 32-bit configurations. * !SMP && PERF_EVENTS - Cleanups to the arch code to remove the remnants of old versions of the drivers that were just properly submitted. * Some dead code from the timer driver, most of which wasn't ever even compiled. * Cleanups of some interrupt #defines, which are now local to the interrupt handling code. - Fixes to ptrace(), which while not being sufficient to fully make GDB work are at least sufficient to get simple GDB tasks to work. - Early printk support via RISC-V's architecturally mandated SBI console device. - A fix to our early debug trap handler to ensure it's always aligned. These patches have all been through a fairly extensive review process, but as this enables a whole pile of functionality (ie, userspace) I'm confident we'll need to submit a few more patches. The only concrete issues I know about are the sys_riscv_flush_icache patches, but as I managed to screw those up on Friday I figured it'd be best to let them bake another week. This tag boots a Fedora root filesystem on QEMU's master branch for me, and before this morning's rebase (from 4.18-rc8 to 4.18) it booted on the HiFive Unleashed. Thanks to Christoph Hellwig and the other guys at WD for getting the new drivers in shape!" * tag 'riscv-for-linus-4.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: dt-bindings: interrupt-controller: SiFive Plaform Level Interrupt Controller dt-bindings: interrupt-controller: RISC-V local interrupt controller RISC-V: Fix !CONFIG_SMP compilation error irqchip: add a SiFive PLIC driver RISC-V: Add the directive for alignment of stvec's value clocksource: new RISC-V SBI timer driver RISC-V: implement low-level interrupt handling RISC-V: add a definition for the SIE SEIE bit RISC-V: remove INTERRUPT_CAUSE_* defines from asm/irq.h RISC-V: simplify software interrupt / IPI code RISC-V: remove timer leftovers RISC-V: Add early printk support via the SBI console RISC-V: Don't increment sepc after breakpoint. RISC-V: implement __lshrti3. RISC-V: Use KBUILD_CFLAGS instead of KCFLAGS when building the vDSO

Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-08-14T01:28:19Z

Pull x86 timer updates from Thomas Gleixner: "Early TSC based time stamping to allow better boot time analysis. This comes with a general cleanup of the TSC calibration code which grew warts and duct taping over the years and removes 250 lines of code. Initiated and mostly implemented by Pavel with help from various folks" * 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits) x86/kvmclock: Mark kvm_get_preset_lpj() as __init x86/tsc: Consolidate init code sched/clock: Disable interrupts when calling generic_sched_clock_init() timekeeping: Prevent false warning when persistent clock is not available sched/clock: Close a hole in sched_clock_init() x86/tsc: Make use of tsc_calibrate_cpu_early() x86/tsc: Split native_calibrate_cpu() into early and late parts sched/clock: Use static key for sched_clock_running sched/clock: Enable sched clock early sched/clock: Move sched clock initialization and merge with generic clock x86/tsc: Use TSC as sched clock early x86/tsc: Initialize cyc2ns when tsc frequency is determined x86/tsc: Calibrate tsc only once ARM/time: Remove read_boot_clock64() s390/time: Remove read_boot_clock64() timekeeping: Default boot time offset to local_clock() timekeeping: Replace read_boot_clock64() with read_persistent_wall_and_boot_offset() s390/time: Add read_persistent_wall_and_boot_offset() x86/xen/time: Output xen sched_clock time from 0 x86/xen/time: Initialize pv xen time in init_hypervisor_platform() ...

clocksource: new RISC-V SBI timer driver

2018-08-13T15:31:31Z

The RISC-V ISA defines a per-hart real-time clock and timer, which is present on all systems. The clock is accessed via the 'rdtime' pseudo-instruction (which reads a CSR), and the timer is set via an SBI call. Contains various improvements from Atish Patra . Signed-off-by: Dmitriy Cherkasov Signed-off-by: Palmer Dabbelt [hch: remove dead code, add SPDX tags, used riscv_of_processor_hart(), minor cleanups, merged hotplug cpu support and other improvements from Atish] Signed-off-by: Christoph Hellwig Acked-by: Thomas Gleixner Reviewed-by: Atish Patra Signed-off-by: Palmer Dabbelt

clocksource/drivers/arm_arch_timer: Fix bogus cpu_all_mask usage

2018-08-02T12:55:52Z

Using cpu_all_mask as target mask for clockevents is wrong as it never can actually target not possible CPUs. Use cpu_possible_mask instead Signed-off-by: Thomas Gleixner Cc: Sudeep Holla Cc: Daniel Lezcano

clocksource: ti-32k: Remove CLOCK_SOURCE_SUSPEND_NONSTOP flag

2018-08-02T11:35:08Z

Since commit 39232ed5a179 ("time: Introduce one suspend clocksource to compensate the suspend time") suspend/resume fails on AM437x platforms as the clocksource actually stops in suspend. Hence remove the CLOCK_SOURCE_SUSPEND_NONSTOP flag. Suggested-by: Grygorii Strashko Signed-off-by: Keerthy Signed-off-by: Thomas Gleixner Cc: Cc: Cc: Cc: Cc: Cc: Link: https://lkml.kernel.org/r/1533191716-20476-1-git-send-email-j-keerthy@ti.com

clocksource/drivers/sprd: Register one always-on timer to compensate suspend time

2018-07-26T09:26:34Z

Since the clocksource framework has introduced one suspend clocksource to compensate the suspend time, this patch registers one always-on timer as the suspend clocksource. Signed-off-by: Baolin Wang Signed-off-by: Daniel Lezcano

clocksource/drivers/timer-mediatek: Add support for system timer

2018-07-26T09:26:34Z

This patch adds a new "System Timer" on the Mediatek SoCs. The System Timer is introduced as an always-on timer being clockevent device for tick-broadcasting. For clock, it is driven by 13 MHz system clock. The implementation uses the system clock with no clock source divider. For interrupt, the clock event timer can be used by all cores. Signed-off-by: Stanley Chu Signed-off-by: Daniel Lezcano

clocksource/drivers/timer-mediatek: Convert the driver to timer-of

2018-07-26T09:26:33Z

Convert the driver to use the timer_of helpers. This allows to remove custom proprietary structure, factors out and simplifies the code. Signed-off-by: Stanley Chu Signed-off-by: Daniel Lezcano

clocksource/drivers/timer-mediatek: Use specific prefix for GPT

2018-07-26T09:26:32Z

Use specific prefix to specify the name of supported timer hardware: "General Purpose Timer (GPT)". Signed-off-by: Stanley Chu Signed-off-by: Daniel Lezcano

clocksource/drivers/timer-mediatek: Rename mtk_timer to timer-mediatek

2018-07-26T09:26:32Z

Rename mtk_timer to timer-mediatek to apply new naming convention in clocksource folder. Signed-off-by: Stanley Chu Signed-off-by: Daniel Lezcano