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Commit e3f43291 authored by Baruch Siach's avatar Baruch Siach Committed by Chris Zankel
Browse files

xtensa: ccount based sched_clock



Signed-off-by: default avatarBaruch Siach <baruch@tkos.co.il>
Signed-off-by: default avatarChris Zankel <chris@zankel.net>
parent 925f5532
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+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ config XTENSA
	select VIRT_TO_BUS
	select GENERIC_IRQ_SHOW
	select GENERIC_CPU_DEVICES
	select GENERIC_SCHED_CLOCK
	select MODULES_USE_ELF_RELA
	select GENERIC_PCI_IOMAP
	select ARCH_WANT_IPC_PARSE_VERSION
+8 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@
#include <linux/profile.h>
#include <linux/delay.h>
#include <linux/irqdomain.h>
#include <linux/sched_clock.h>

#include <asm/timex.h>
#include <asm/platform.h>
@@ -37,6 +38,11 @@ static cycle_t ccount_read(struct clocksource *cs)
	return (cycle_t)get_ccount();
}

static u32 notrace ccount_sched_clock_read(void)
{
	return get_ccount();
}

static struct clocksource ccount_clocksource = {
	.name = "ccount",
	.rating = 200,
@@ -134,6 +140,8 @@ void __init time_init(void)
			0xffffffff);
	setup_irq(ccount_timer.evt.irq, &timer_irqaction);
	ccount_timer.irq_enabled = 1;

	setup_sched_clock(ccount_sched_clock_read, 32, ccount_freq);
}

/*