* Heavily based on arch/sparc/kernel/irq.c.
*/
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/linkage.h>
#include <linux/kernel_stat.h>
#include <asm/sbus.h>
#include <asm/sbi.h>
#include <asm/cacheflush.h>
+#include <asm/irq_regs.h>
/* If you trust current SCSI layer to handle different SCSI IRQs, enable this. I don't trust it... -jj */
/* #define DISTRIBUTE_IRQS */
kstat_cpu(cpu_logical_map(x)).irqs[i]);
#endif
seq_printf(p, "%c %s",
- (action->flags & SA_INTERRUPT) ? '+' : ' ',
+ (action->flags & IRQF_DISABLED) ? '+' : ' ',
action->name);
action = action->next;
for (;;) {
for (; action; action = action->next) {
seq_printf(p, ",%s %s",
- (action->flags & SA_INTERRUPT) ? " +" : "",
+ (action->flags & IRQF_DISABLED) ? " +" : "",
action->name);
}
if (!sbusl) break;
printk("Trying to free free shared IRQ%d\n",irq);
goto out_unlock;
}
- } else if (action->flags & SA_SHIRQ) {
+ } else if (action->flags & IRQF_SHARED) {
printk("Trying to free shared IRQ%d with NULL device ID\n", irq);
goto out_unlock;
}
void sun4d_handler_irq(int irq, struct pt_regs * regs)
{
+ struct pt_regs *old_regs;
struct irqaction * action;
int cpu = smp_processor_id();
/* SBUS IRQ level (1 - 7) */
cc_set_iclr(1 << irq);
+ old_regs = set_irq_regs(regs);
irq_enter();
kstat_cpu(cpu).irqs[irq]++;
if (!sbusl) {
if (!action)
unexpected_irq(irq, NULL, regs);
do {
- action->handler(irq, action->dev_id, regs);
+ action->handler(irq, action->dev_id);
action = action->next;
} while (action);
} else {
if (!action)
unexpected_irq(irq, NULL, regs);
do {
- action->handler(irq, action->dev_id, regs);
+ action->handler(irq, action->dev_id);
action = action->next;
} while (action);
release_sbi(SBI2DEVID(sbino), slot);
}
}
irq_exit();
+ set_irq_regs(old_regs);
}
unsigned int sun4d_build_irq(struct sbus_dev *sdev, int irq)
}
int sun4d_request_irq(unsigned int irq,
- irqreturn_t (*handler)(int, void *, struct pt_regs *),
+ irq_handler_t handler,
unsigned long irqflags, const char * devname, void *dev_id)
{
struct irqaction *action, *tmp = NULL, **actionp;
action = *actionp;
if (action) {
- if ((action->flags & SA_SHIRQ) && (irqflags & SA_SHIRQ)) {
+ if ((action->flags & IRQF_SHARED) && (irqflags & IRQF_SHARED)) {
for (tmp = action; tmp->next; tmp = tmp->next);
} else {
ret = -EBUSY;
goto out_unlock;
}
- if ((action->flags & SA_INTERRUPT) ^ (irqflags & SA_INTERRUPT)) {
+ if ((action->flags & IRQF_DISABLED) ^ (irqflags & IRQF_DISABLED)) {
printk("Attempt to mix fast and slow interrupts on IRQ%d denied\n", irq);
ret = -EBUSY;
goto out_unlock;
}
if (action == NULL)
- action = (struct irqaction *)kmalloc(sizeof(struct irqaction),
+ action = kmalloc(sizeof(struct irqaction),
GFP_ATOMIC);
if (!action) {
bw_set_prof_limit(cpu, limit);
}
-static void __init sun4d_init_timers(irqreturn_t (*counter_fn)(int, void *, struct pt_regs *))
+static void __init sun4d_init_timers(irq_handler_t counter_fn)
{
int irq;
int cpu;
irq = request_irq(TIMER_IRQ,
counter_fn,
- (SA_INTERRUPT | SA_STATIC_ALLOC),
+ (IRQF_DISABLED | SA_STATIC_ALLOC),
"timer", NULL);
if (irq) {
prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
nsbi = 0;
for_each_sbus(sbus)
nsbi++;
- sbus_actions = (struct sbus_action *)kmalloc (nsbi * 8 * 4 * sizeof(struct sbus_action), GFP_ATOMIC);
- memset (sbus_actions, 0, (nsbi * 8 * 4 * sizeof(struct sbus_action)));
+ sbus_actions = kzalloc (nsbi * 8 * 4 * sizeof(struct sbus_action), GFP_ATOMIC);
+ if (!sbus_actions) {
+ prom_printf("SUN4D: Cannot allocate sbus_actions, halting.\n");
+ prom_halt();
+ }
for_each_sbus(sbus) {
#ifdef CONFIG_SMP
extern unsigned char boot_cpu_id;