diff options
Diffstat (limited to 'arch/alpha/kernel/irq_i8259.c')
| -rw-r--r-- | arch/alpha/kernel/irq_i8259.c | 51 |
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 |
