forked from Minki/linux
xtensa: ccount based sched_clock
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Chris Zankel <chris@zankel.net>
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925f5532e8
commit
e3f432919f
@ -11,6 +11,7 @@ config XTENSA
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select VIRT_TO_BUS
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select GENERIC_IRQ_SHOW
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select GENERIC_CPU_DEVICES
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select GENERIC_SCHED_CLOCK
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select MODULES_USE_ELF_RELA
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select GENERIC_PCI_IOMAP
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select ARCH_WANT_IPC_PARSE_VERSION
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@ -24,6 +24,7 @@
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#include <linux/profile.h>
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#include <linux/delay.h>
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#include <linux/irqdomain.h>
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#include <linux/sched_clock.h>
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#include <asm/timex.h>
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#include <asm/platform.h>
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@ -37,6 +38,11 @@ static cycle_t ccount_read(struct clocksource *cs)
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return (cycle_t)get_ccount();
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}
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static u32 notrace ccount_sched_clock_read(void)
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{
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return get_ccount();
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}
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static struct clocksource ccount_clocksource = {
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.name = "ccount",
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.rating = 200,
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@ -134,6 +140,8 @@ void __init time_init(void)
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0xffffffff);
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setup_irq(ccount_timer.evt.irq, &timer_irqaction);
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ccount_timer.irq_enabled = 1;
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setup_sched_clock(ccount_sched_clock_read, 32, ccount_freq);
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}
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/*
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