The CLOCK_EVT_FEAT_PERCPU flag indicates that a clockevent device is only configurable by the CPU for which it is registered, and thus cannot be used as the tick broadcast device. That property is true of the R4K timer, which is inaccessible from other cores. Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx> --- arch/mips/kernel/cevt-r4k.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c index 7820d5d..f3c549c 100644 --- a/arch/mips/kernel/cevt-r4k.c +++ b/arch/mips/kernel/cevt-r4k.c @@ -196,7 +196,8 @@ int r4k_clockevent_init(void) cd->name = "MIPS"; cd->features = CLOCK_EVT_FEAT_ONESHOT | - CLOCK_EVT_FEAT_C3STOP; + CLOCK_EVT_FEAT_C3STOP | + CLOCK_EVT_FEAT_PERCPU; clockevent_set_clock(cd, mips_hpt_frequency); -- 1.8.5.3