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authorRalf Baechle <ralf@linux-mips.org>2007-10-28 23:02:37 +0000
committerRalf Baechle <ralf@linux-mips.org>2007-10-29 19:35:35 +0000
commit725d7b36c3287217e14cea6fec6c0b897f500a10 (patch)
treed3c0cac39d4529095f9b98064ed631a2c924917d
parent84953b39f9b57f89f87b5974c599b8111658f0b6 (diff)
[MIPS] IP27: Fix slice logic to work for arbitrary number of slices.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/sgi-ip27/ip27-timer.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c
index f5dccf01da1..dc59c3b708e 100644
--- 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;