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[POWERPC] Use the genirq framework

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This adapts the generic powerpc interrupt handling code, and all of
the platforms except for the embedded 6xx machines, to use the new
genirq framework.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt
2006-07-03 19:32:51 +10:00
committed by Paul Mackerras
parent 5a43a066b1
commit b9e5b4e6a9
17 changed files with 692 additions and 635 deletions
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32
arch/powerpc/kernel/irq.c
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@@ -62,28 +62,27 @@
#endif
int __irq_offset_value;
#ifdef CONFIG_PPC32
EXPORT_SYMBOL(__irq_offset_value);
#endif
static int ppc_spurious_interrupts;
#ifdef CONFIG_PPC32
#define NR_MASK_WORDS ((NR_IRQS + 31) / 32)
unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
EXPORT_SYMBOL(__irq_offset_value);
atomic_t ppc_n_lost_interrupts;
#ifndef CONFIG_PPC_MERGE
#define NR_MASK_WORDS ((NR_IRQS + 31) / 32)
unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
#endif
#ifdef CONFIG_TAU_INT
extern int tau_initialized;
extern int tau_interrupts(int);
#endif
#endif /* CONFIG_PPC32 */
#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_MERGE)
extern atomic_t ipi_recv;
extern atomic_t ipi_sent;
#endif
#endif /* CONFIG_PPC32 */
#ifdef CONFIG_PPC64
EXPORT_SYMBOL(irq_desc);
@@ -219,15 +218,19 @@ void do_IRQ(struct pt_regs *regs)
curtp = current_thread_info();
irqtp = hardirq_ctx[smp_processor_id()];
if (curtp != irqtp) {
struct irq_desc *desc = irq_desc + irq;
void *handler = desc->handle_irq;
if (handler == NULL)
handler = &__do_IRQ;
irqtp->task = curtp->task;
irqtp->flags = 0;
call___do_IRQ(irq, regs, irqtp);
call_handle_irq(irq, desc, regs, irqtp, handler);
irqtp->task = NULL;
if (irqtp->flags)
set_bits(irqtp->flags, &curtp->flags);
} else
#endif
__do_IRQ(irq, regs);
generic_handle_irq(irq, regs);
} else if (irq != -2)
/* That's not SMP safe ... but who cares ? */
ppc_spurious_interrupts++;
@@ -245,15 +248,6 @@ void do_IRQ(struct pt_regs *regs)
void __init init_IRQ(void)
{
#ifdef CONFIG_PPC64
static int once = 0;
if (once)
return;
once++;
#endif
ppc_md.init_IRQ();
#ifdef CONFIG_PPC64
irq_ctx_init();