#undef PARISC_IRQ_CR16_COUNTS
-extern irqreturn_t timer_interrupt(int, void *, struct pt_regs *);
-extern irqreturn_t ipi_interrupt(int, void *, struct pt_regs *);
+extern irqreturn_t timer_interrupt(int, void *);
+extern irqreturn_t ipi_interrupt(int, void *);
#define EIEM_MASK(irq) (1UL<<(CPU_IRQ_MAX - irq))
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)
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);
}
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
-int cpu_check_affinity(unsigned int irq, cpumask_t *dest)
+int cpu_check_affinity(unsigned int irq, const struct cpumask *dest)
{
int cpu_dest;
if (CHECK_IRQ_PER_CPU(irq)) {
/* Bad linux design decision. The mask has already
* been set; we must reset it */
- irq_desc[irq].affinity = CPU_MASK_ALL;
+ cpumask_setall(&irq_desc[irq].affinity);
return -EINVAL;
}
/* whatever mask they set, we just allow one CPU */
cpu_dest = first_cpu(*dest);
- *dest = cpumask_of_cpu(cpu_dest);
- return 0;
+ return cpu_dest;
}
-static void cpu_set_affinity_irq(unsigned int irq, cpumask_t dest)
+static void cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
{
- if (cpu_check_affinity(irq, &dest))
+ int cpu_dest;
+
+ cpu_dest = cpu_check_affinity(irq, dest);
+ if (cpu_dest < 0)
return;
- irq_desc[irq].affinity = dest;
+ cpumask_copy(&irq_desc[irq].affinity, dest);
}
#endif
seq_printf(p, "%3d: ", i);
#ifdef CONFIG_SMP
for_each_online_cpu(j)
- seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+ seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
#else
seq_printf(p, "%10u ", kstat_irqs(i));
#endif
unsigned long txn_affinity_addr(unsigned int irq, int cpu)
{
#ifdef CONFIG_SMP
- irq_desc[irq].affinity = cpumask_of_cpu(cpu);
+ cpumask_copy(&irq_desc[irq].affinity, cpumask_of(cpu));
#endif
- return cpu_data[cpu].txn_addr;
+ return per_cpu(cpu_data, cpu).txn_addr;
}
next_cpu++; /* assign to "next" CPU we want this bugger on */
/* validate entry */
- while ((next_cpu < NR_CPUS) && (!cpu_data[next_cpu].txn_addr ||
- !cpu_online(next_cpu)))
+ while ((next_cpu < NR_CPUS) &&
+ (!per_cpu(cpu_data, next_cpu).txn_addr ||
+ !cpu_online(next_cpu)))
next_cpu++;
if (next_cpu >= NR_CPUS)
static inline int eirr_to_irq(unsigned long eirr)
{
-#ifdef CONFIG_64BIT
- int bit = fls64(eirr);
-#else
- int bit = fls(eirr);
-#endif
+ int bit = fls_long(eirr);
return (BITS_PER_LONG - bit) + TIMER_IRQ;
}
/* ONLY called from entry.S:intr_extint() */
void do_cpu_irq_mask(struct pt_regs *regs)
{
+ struct pt_regs *old_regs;
unsigned long eirr_val;
int irq, cpu = smp_processor_id();
#ifdef CONFIG_SMP
cpumask_t dest;
#endif
+ old_regs = set_irq_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);
#ifdef CONFIG_SMP
- dest = irq_desc[irq].affinity;
+ cpumask_copy(&dest, &irq_desc[irq].affinity);
if (CHECK_IRQ_PER_CPU(irq_desc[irq].status) &&
!cpu_isset(smp_processor_id(), dest)) {
int cpu = first_cpu(dest);
printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
irq, smp_processor_id(), cpu);
gsc_writel(irq + CPU_IRQ_BASE,
- cpu_data[cpu].hpa);
+ per_cpu(cpu_data, cpu).hpa);
goto set_out;
}
#endif
- __do_IRQ(irq, regs);
+ __do_IRQ(irq);
out:
irq_exit();
+ set_irq_regs(old_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;
}
static struct irqaction timer_action = {
.handler = timer_interrupt,
.name = "timer",
- .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU,
+ .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
};
#ifdef CONFIG_SMP
}
irq_desc[TIMER_IRQ].action = &timer_action;
- irq_desc[TIMER_IRQ].status |= IRQ_PER_CPU;
+ irq_desc[TIMER_IRQ].status = IRQ_PER_CPU;
#ifdef CONFIG_SMP
irq_desc[IPI_IRQ].action = &ipi_action;
irq_desc[IPI_IRQ].status = IRQ_PER_CPU;
void ack_bad_irq(unsigned int irq)
{
- printk("unexpected IRQ %d\n", irq);
+ printk(KERN_WARNING "unexpected IRQ %d\n", irq);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff