diff options
Diffstat (limited to 'arch/parisc/kernel/irq.c')
| -rw-r--r-- | arch/parisc/kernel/irq.c | 26 |
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; } |