diff options
| author | Tony Lindgren <tony@atomide.com> | 2011-01-19 02:00:00 +0100 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2011-01-19 19:38:46 +0100 |
| commit | 4912cf04b202a9d0bdc4082ecb9247943584450d (patch) | |
| tree | c22e7673e441cb03aabd894e606e1e53df16f6d1 /arch/arm/plat-omap | |
| parent | omap1: Fix booting for 15xx and 730 with omap1_defconfig (diff) | |
| download | linux-4912cf04b202a9d0bdc4082ecb9247943584450d.tar.xz linux-4912cf04b202a9d0bdc4082ecb9247943584450d.zip | |
omap1: Fix sched_clock implementation when both MPU timer and 32K timer are used
Earlier patches select HAVE_SCHED_CLOCK for omaps. To have working sched_clock
also for MPU timer, we need to implement it in a way where the right one gets
selected during the runtime.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/counter_32k.c | 14 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/common.h | 1 |
2 files changed, 14 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c index 5d7b08b5a13a..862dda95d61d 100644 --- a/arch/arm/plat-omap/counter_32k.c +++ b/arch/arm/plat-omap/counter_32k.c @@ -120,12 +120,24 @@ static DEFINE_CLOCK_DATA(cd); #define SC_MULT 4000000000u #define SC_SHIFT 17 -unsigned long long notrace sched_clock(void) +static inline unsigned long long notrace _omap_32k_sched_clock(void) { u32 cyc = clocksource_32k.read(&clocksource_32k); return cyc_to_fixed_sched_clock(&cd, cyc, (u32)~0, SC_MULT, SC_SHIFT); } +#ifndef CONFIG_OMAP_MPU_TIMER +unsigned long long notrace sched_clock(void) +{ + return _omap_32k_sched_clock(); +} +#else +unsigned long long notrace omap_32k_sched_clock(void) +{ + return _omap_32k_sched_clock(); +} +#endif + static void notrace omap_update_sched_clock(void) { u32 cyc = clocksource_32k.read(&clocksource_32k); diff --git a/arch/arm/plat-omap/include/plat/common.h b/arch/arm/plat-omap/include/plat/common.h index ef683e01701b..29b2afb4288f 100644 --- a/arch/arm/plat-omap/include/plat/common.h +++ b/arch/arm/plat-omap/include/plat/common.h @@ -37,6 +37,7 @@ extern void omap_map_common_io(void); extern struct sys_timer omap_timer; extern bool omap_32k_timer_init(void); extern int __init omap_init_clocksource_32k(void); +extern unsigned long long notrace omap_32k_sched_clock(void); extern void omap_reserve(void); |