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path: root/drivers/clocksource/timer-mp-csky.c
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2018-12-31clocksource/drivers/c-sky: fixup ftrace call-graph panicGuo Ren1-1/+1
We must add notrace on sched_clock_read, because it's called by ftrace_graph_caller. Signed-off-by: Guo Ren <[email protected]>
2018-12-31clocksource/drivers/c-sky: fixup qemu fail to bootup sometimes.Guo Ren1-2/+2
Timer startup must after timer_irq_enable. For qemu, timer tick irq hanppens but irq not enable, so it will cause qemu boot failed. Signed-off-by: Guo Ren <[email protected]> Tested-by: Liu Zhiwei <[email protected]>
2018-11-02clocksource/drivers/c-sky: Add C-SKY SMP timerGuo Ren1-0/+173
The driver is for C-SKY SMP timer. It only supports oneshot event and 32bit overflow for clocksource. Per cpu core has one timer and all timers share one clock-counter-input from the same clocksource. This use mfcr&mtcr instructions to access the regs. Signed-off-by: Guo Ren <[email protected]> Cc: Daniel Lezcano <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]>