original_kernel/arch/ia64/hp/sim/hpsim_irq.c

52 lines
971 B
C

/*
* Platform dependent support for HP simulator.
*
* Copyright (C) 1998-2001 Hewlett-Packard Co
* Copyright (C) 1998-2001 David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/irq.h>
static unsigned int
hpsim_irq_startup(struct irq_data *data)
{
return 0;
}
static void
hpsim_irq_noop(struct irq_data *data)
{
}
static int
hpsim_set_affinity_noop(struct irq_data *d, const struct cpumask *b, bool f)
{
return 0;
}
static struct irq_chip irq_type_hp_sim = {
.name = "hpsim",
.irq_startup = hpsim_irq_startup,
.irq_shutdown = hpsim_irq_noop,
.irq_enable = hpsim_irq_noop,
.irq_disable = hpsim_irq_noop,
.irq_ack = hpsim_irq_noop,
.irq_set_affinity = hpsim_set_affinity_noop,
};
void __init
hpsim_irq_init (void)
{
int i;
for_each_active_irq(i) {
struct irq_chip *chip = irq_get_chip(i);
if (chip == &no_irq_chip)
irq_set_chip(i, &irq_type_hp_sim);
}
}