diff options
Diffstat (limited to 'arch/cris/kernel/irq.c')
| -rw-r--r-- | arch/cris/kernel/irq.c | 66 |
1 files changed, 9 insertions, 57 deletions
diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c index 30deaf1b728..dd0be5de55d 100644 --- a/arch/cris/kernel/irq.c +++ b/arch/cris/kernel/irq.c @@ -2,12 +2,12 @@ * * linux/arch/cris/kernel/irq.c * - * Copyright (c) 2000,2001 Axis Communications AB + * Copyright (c) 2000,2007 Axis Communications AB * * Authors: Bjorn Wesen (bjornw@axis.com) * * This file contains the code used by various IRQ handling routines: - * asking for different IRQ's should be done through these routines + * asking for different IRQs should be done through these routines * instead of just grabbing them. Thus setups with different IRQ numbers * shouldn't result in any weird surprises, and installing new handlers * should be easier. @@ -15,11 +15,10 @@ */ /* - * IRQ's are in fact implemented a bit like signal handlers for the kernel. + * IRQs are in fact implemented a bit like signal handlers for the kernel. * Naturally it's not a 1:1 relation, but there are similarities. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/ptrace.h> #include <linux/irq.h> @@ -30,7 +29,6 @@ #include <linux/ioport.h> #include <linux/interrupt.h> #include <linux/timex.h> -#include <linux/slab.h> #include <linux/random.h> #include <linux/init.h> #include <linux/seq_file.h> @@ -38,71 +36,25 @@ #include <linux/spinlock.h> #include <asm/io.h> - -void ack_bad_irq(unsigned int irq) -{ - printk("unexpected IRQ trap at vector %02x\n", irq); -} - -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v, j; - struct irqaction * action; - unsigned long flags; - - if (i == 0) { - seq_printf(p, " "); - for (j=0; j<NR_CPUS; j++) - if (cpu_online(j)) - seq_printf(p, "CPU%d ",j); - seq_putc(p, '\n'); - } - - if (i < NR_IRQS) { - spin_lock_irqsave(&irq_desc[i].lock, flags); - action = irq_desc[i].action; - if (!action) - goto skip; - seq_printf(p, "%3d: ",i); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for (j = 0; j < NR_CPUS; j++) - if (cpu_online(j)) - seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); -#endif - seq_printf(p, " %14s", irq_desc[i].handler->typename); - seq_printf(p, " %s", action->name); - - for (action=action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); -skip: - spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } - return 0; -} - +#include <arch/system.h> /* called by the assembler IRQ entry functions defined in irq.h - * to dispatch the interrupts to registred handlers - * interrupts are disabled upon entry - depending on if the - * interrupt was registred with SA_INTERRUPT or not, interrupts - * are re-enabled or not. + * to dispatch the interrupts to registered handlers */ asmlinkage void do_IRQ(int irq, struct pt_regs * regs) { unsigned long sp; + struct pt_regs *old_regs = set_irq_regs(regs); irq_enter(); sp = rdsp(); if (unlikely((sp & (PAGE_SIZE - 1)) < (PAGE_SIZE/8))) { printk("do_IRQ: stack overflow: %lX\n", sp); show_stack(NULL, (unsigned long *)sp); } - __do_IRQ(irq, regs); - irq_exit(); + generic_handle_irq(irq); + irq_exit(); + set_irq_regs(old_regs); } void weird_irq(void) |