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author | Paul Mundt <lethal@linux-sh.org> | 2009-05-22 01:26:16 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2009-05-22 01:26:16 +0900 |
commit | fa1d43ab451084785153d37ae559c4fdd1546a5b (patch) | |
tree | 31a90b3c61dcd1b8c71ca710fe419c634fe64883 /arch/sh/kernel/irq.c | |
parent | 55620c86ebc29013c0d26c5b3bc423faea299fee (diff) | |
download | linux-fa1d43ab451084785153d37ae559c4fdd1546a5b.tar.bz2 |
sh: irq: Convert from irq_desc[] to irq_to_desc().
This converts a few places that were using the old irq_desc[] array over
to the shiny new irq_to_desc() helper. Preperatory work for sparse irq
support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/irq.c')
-rw-r--r-- | arch/sh/kernel/irq.c | 69 |
1 files changed, 47 insertions, 22 deletions
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c index 3f1372eb0091..878532b61762 100644 --- a/arch/sh/kernel/irq.c +++ b/arch/sh/kernel/irq.c @@ -31,39 +31,64 @@ void ack_bad_irq(unsigned int irq) } #if defined(CONFIG_PROC_FS) +/* + * /proc/interrupts printing: + */ +static int show_other_interrupts(struct seq_file *p, int prec) +{ + seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count)); + return 0; +} + int show_interrupts(struct seq_file *p, void *v) { - int i = *(loff_t *) v, j; - struct irqaction * action; - unsigned long flags; + unsigned long flags, any_count = 0; + int i = *(loff_t *)v, j, prec; + struct irqaction *action; + struct irq_desc *desc; + + if (i > nr_irqs) + return 0; + + for (prec = 3, j = 1000; prec < 10 && j <= nr_irqs; ++prec) + j *= 10; + + if (i == nr_irqs) + return show_other_interrupts(p, prec); if (i == 0) { - seq_puts(p, " "); + seq_printf(p, "%*s", prec + 8, ""); for_each_online_cpu(j) - seq_printf(p, "CPU%d ",j); + seq_printf(p, "CPU%-8d", j); seq_putc(p, '\n'); } - if (i < sh_mv.mv_nr_irqs) { - spin_lock_irqsave(&irq_desc[i].lock, flags); - action = irq_desc[i].action; - if (!action) - goto unlock; - seq_printf(p, "%3d: ",i); - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); - seq_printf(p, " %14s", irq_desc[i].chip->name); - seq_printf(p, "-%-8s", irq_desc[i].name); - seq_printf(p, " %s", action->name); + desc = irq_to_desc(i); + if (!desc) + return 0; + + spin_lock_irqsave(&desc->lock, flags); + for_each_online_cpu(j) + any_count |= kstat_irqs_cpu(i, j); + action = desc->action; + if (!action && !any_count) + goto out; - for (action=action->next; action; action = action->next) + seq_printf(p, "%*d: ", prec, i); + for_each_online_cpu(j) + seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); + seq_printf(p, " %14s", desc->chip->name); + seq_printf(p, "-%-8s", desc->name); + + if (action) { + seq_printf(p, " %s", action->name); + while ((action = action->next) != NULL) seq_printf(p, ", %s", action->name); - seq_putc(p, '\n'); -unlock: - spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } else if (i == sh_mv.mv_nr_irqs) - seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count)); + } + seq_putc(p, '\n'); +out: + spin_unlock_irqrestore(&desc->lock, flags); return 0; } #endif |