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path: root/arch/alpha/kernel/irq_i8259.c
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Diffstat (limited to 'arch/alpha/kernel/irq_i8259.c')
-rw-r--r--arch/alpha/kernel/irq_i8259.c51
1 files changed, 17 insertions, 34 deletions
diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c
index b188683b83f..e1861c77dab 100644
--- a/arch/alpha/kernel/irq_i8259.c
+++ b/arch/alpha/kernel/irq_i8259.c
@@ -7,7 +7,6 @@
* Started hacking from linux-2.3.30pre6/arch/i386/kernel/i8259.c.
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/cache.h>
#include <linux/sched.h>
@@ -34,10 +33,10 @@ i8259_update_irq_hw(unsigned int irq, unsigned long mask)
}
inline void
-i8259a_enable_irq(unsigned int irq)
+i8259a_enable_irq(struct irq_data *d)
{
spin_lock(&i8259_irq_lock);
- i8259_update_irq_hw(irq, cached_irq_mask &= ~(1 << irq));
+ i8259_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << d->irq));
spin_unlock(&i8259_irq_lock);
}
@@ -48,16 +47,18 @@ __i8259a_disable_irq(unsigned int irq)
}
void
-i8259a_disable_irq(unsigned int irq)
+i8259a_disable_irq(struct irq_data *d)
{
spin_lock(&i8259_irq_lock);
- __i8259a_disable_irq(irq);
+ __i8259a_disable_irq(d->irq);
spin_unlock(&i8259_irq_lock);
}
void
-i8259a_mask_and_ack_irq(unsigned int irq)
+i8259a_mask_and_ack_irq(struct irq_data *d)
{
+ unsigned int irq = d->irq;
+
spin_lock(&i8259_irq_lock);
__i8259a_disable_irq(irq);
@@ -70,28 +71,11 @@ i8259a_mask_and_ack_irq(unsigned int irq)
spin_unlock(&i8259_irq_lock);
}
-unsigned int
-i8259a_startup_irq(unsigned int irq)
-{
- i8259a_enable_irq(irq);
- return 0; /* never anything pending */
-}
-
-void
-i8259a_end_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- i8259a_enable_irq(irq);
-}
-
-struct hw_interrupt_type i8259a_irq_type = {
- .typename = "XT-PIC",
- .startup = i8259a_startup_irq,
- .shutdown = i8259a_disable_irq,
- .enable = i8259a_enable_irq,
- .disable = i8259a_disable_irq,
- .ack = i8259a_mask_and_ack_irq,
- .end = i8259a_end_irq,
+struct irq_chip i8259a_irq_type = {
+ .name = "XT-PIC",
+ .irq_unmask = i8259a_enable_irq,
+ .irq_mask = i8259a_disable_irq,
+ .irq_mask_ack = i8259a_mask_and_ack_irq,
};
void __init
@@ -108,8 +92,7 @@ init_i8259a_irqs(void)
outb(0xff, 0xA1); /* mask all of 8259A-2 */
for (i = 0; i < 16; i++) {
- irq_desc[i].status = IRQ_DISABLED;
- irq_desc[i].handler = &i8259a_irq_type;
+ irq_set_chip_and_handler(i, &i8259a_irq_type, handle_level_irq);
}
setup_irq(2, &cascade);
@@ -138,7 +121,7 @@ init_i8259a_irqs(void)
#if defined(IACK_SC)
void
-isa_device_interrupt(unsigned long vector, struct pt_regs *regs)
+isa_device_interrupt(unsigned long vector)
{
/*
* Generate a PCI interrupt acknowledge cycle. The PIC will
@@ -148,13 +131,13 @@ isa_device_interrupt(unsigned long vector, struct pt_regs *regs)
*/
int j = *(vuip) IACK_SC;
j &= 0xff;
- handle_irq(j, regs);
+ handle_irq(j);
}
#endif
#if defined(CONFIG_ALPHA_GENERIC) || !defined(IACK_SC)
void
-isa_no_iack_sc_device_interrupt(unsigned long vector, struct pt_regs *regs)
+isa_no_iack_sc_device_interrupt(unsigned long vector)
{
unsigned long pic;
@@ -177,7 +160,7 @@ isa_no_iack_sc_device_interrupt(unsigned long vector, struct pt_regs *regs)
while (pic) {
int j = ffz(~pic);
pic &= pic - 1;
- handle_irq(j, regs);
+ handle_irq(j);
}
}
#endif