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Commit 725d7b36 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

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



Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 84953b39

arch/mips/sgi-ip27/ip27-timer.c

+7 −4
Original line number Diff line number Diff line
@@ -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;