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Diffstat (limited to 'arch')
-rw-r--r--arch/parisc/kernel/irq.c26
1 files changed, 8 insertions, 18 deletions
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c5c9125dace..76ce5e3b005 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -46,14 +46,10 @@ extern irqreturn_t ipi_interrupt(int, void *);
static volatile unsigned long cpu_eiem = 0;
/*
-** ack bitmap ... habitually set to 1, but reset to zero
+** local ACK bitmap ... habitually set to 1, but reset to zero
** between ->ack() and ->end() of the interrupt to prevent
** re-interruption of a processing interrupt.
*/
-static volatile unsigned long global_ack_eiem = ~0UL;
-/*
-** Local bitmap, same as above but for per-cpu interrupts
-*/
static DEFINE_PER_CPU(unsigned long, local_ack_eiem) = ~0UL;
static void cpu_disable_irq(unsigned int irq)
@@ -94,13 +90,11 @@ void cpu_ack_irq(unsigned int irq)
int cpu = smp_processor_id();
/* Clear in EIEM so we can no longer process */
- if (CHECK_IRQ_PER_CPU(irq_desc[irq].status))
- per_cpu(local_ack_eiem, cpu) &= ~mask;
- else
- global_ack_eiem &= ~mask;
+ per_cpu(local_ack_eiem, cpu) &= ~mask;
/* disable the interrupt */
- set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+ set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
+
/* and now ack it */
mtctl(mask, 23);
}
@@ -111,13 +105,10 @@ void cpu_end_irq(unsigned int irq)
int cpu = smp_processor_id();
/* set it in the eiems---it's no longer in process */
- if (CHECK_IRQ_PER_CPU(irq_desc[irq].status))
- per_cpu(local_ack_eiem, cpu) |= mask;
- else
- global_ack_eiem |= mask;
+ per_cpu(local_ack_eiem, cpu) |= mask;
/* enable the interrupt */
- set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+ set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
}
#ifdef CONFIG_SMP
@@ -354,8 +345,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
local_irq_disable();
irq_enter();
- eirr_val = mfctl(23) & cpu_eiem & global_ack_eiem &
- per_cpu(local_ack_eiem, cpu);
+ eirr_val = mfctl(23) & cpu_eiem & per_cpu(local_ack_eiem, cpu);
if (!eirr_val)
goto set_out;
irq = eirr_to_irq(eirr_val);
@@ -381,7 +371,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
return;
set_out:
- set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+ set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
goto out;
}