From e00d9d4b1796dae3adf6e39c9a766e760dd1c796 Mon Sep 17 00:00:00 2001 From: Mikael Pettersson Date: Sat, 9 Jan 2010 13:03:59 +0100 Subject: ARM: 5869/1: ixp4xx: implement sched_clock() Add a better sched_clock() to the ixp4xx platform, implemented via its clocksource support. This is based on the sched_clock() I implemented for the IOP platform. Tested on a ds101 ixp420 machine. Signed-off-by: Mikael Pettersson Signed-off-by: Russell King --- arch/arm/mach-ixp4xx/common.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index 3bbf40f6d964..71728d36d501 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -426,6 +426,17 @@ static void __init ixp4xx_clocksource_init(void) clocksource_register(&clocksource_ixp4xx); } +/* + * sched_clock() + */ +unsigned long long sched_clock(void) +{ + cycle_t cyc = ixp4xx_get_cycles(NULL); + struct clocksource *cs = &clocksource_ixp4xx; + + return clocksource_cyc2ns(cyc, cs->mult, cs->shift); +} + /* * clockevents */ -- cgit v1.2.3