[MIPS] IP27: Fix slice logic to work for arbitrary number of slices.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c
index f5dccf0..dc59c3b 100644 (file)
--- a/arch/mips/sgi-ip27/ip27-timer.c
+++ b/arch/mips/sgi-ip27/ip27-timer.c
@@ -131,12 +131,12 @@ static struct irq_chip rt_irq_type = {
 static int rt_next_event(unsigned long delta, struct clock_event_device *evt)
 {
        unsigned int cpu = smp_processor_id();
-       int slice = cputoslice(cpu) == 0;
+       int slice putoslice(cpu);
        unsigned long cnt;
 
        cnt = LOCAL_HUB_L(PI_RT_COUNT);
        cnt += delta;
-       LOCAL_HUB_S(slice ? PI_RT_COMPARE_A : PI_RT_COMPARE_B, cnt);
+       LOCAL_HUB_S(PI_RT_COMPARE_A + PI_COUNT_OFFSET * slice, cnt);
 
        return LOCAL_HUB_L(PI_RT_COUNT) >= cnt ? -ETIME : 0;
 }
@@ -164,9 +164,12 @@ static irqreturn_t hub_rt_counter_handler(int irq, void *dev_id)
 {
        struct clock_event_device *cd = dev_id;
        unsigned int cpu = smp_processor_id();
-       int slice = cputoslice(cpu) == 0;
+       int slice = cputoslice(cpu);
 
-       LOCAL_HUB_S(slice ? PI_RT_PEND_A : PI_RT_PEND_B, 0);    /* Ack  */
+       /*
+        * Ack
+        */
+       LOCAL_HUB_S(PI_RT_PEND_A + PI_COUNT_OFFSET * slice, cnt);
        cd->event_handler(cd);
 
        return IRQ_HANDLED;