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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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30
arch/powerpc/sysdev/i8259.c
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@@ -69,11 +69,6 @@ int i8259_irq(struct pt_regs *regs)
return irq + i8259_pic_irq_offset;
}
int i8259_irq_cascade(struct pt_regs *regs, void *unused)
{
return i8259_irq(regs);
}
static void i8259_mask_and_ack_irq(unsigned int irq_nr)
{
unsigned long flags;
@@ -129,19 +124,11 @@ static void i8259_unmask_irq(unsigned int irq_nr)
spin_unlock_irqrestore(&i8259_lock, flags);
}
static void i8259_end_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))
&& irq_desc[irq].action)
i8259_unmask_irq(irq);
}
struct hw_interrupt_type i8259_pic = {
.typename = " i8259 ",
.enable = i8259_unmask_irq,
.disable = i8259_mask_irq,
.ack = i8259_mask_and_ack_irq,
.end = i8259_end_irq,
static struct irq_chip i8259_pic = {
.typename = " i8259 ",
.mask = i8259_mask_irq,
.unmask = i8259_unmask_irq,
.mask_ack = i8259_mask_and_ack_irq,
};
static struct resource pic1_iores = {
@@ -207,8 +194,11 @@ void __init i8259_init(unsigned long intack_addr, int offset)
spin_unlock_irqrestore(&i8259_lock, flags);
for (i = 0; i < NUM_ISA_INTERRUPTS; ++i)
irq_desc[offset + i].chip = &i8259_pic;
for (i = 0; i < NUM_ISA_INTERRUPTS; ++i) {
set_irq_chip_and_handler(offset + i, &i8259_pic,
handle_level_irq);
irq_desc[offset + i].status |= IRQ_LEVEL;
}
/* reserve our resources */
setup_irq(offset + 2, &i8259_irqaction);