From ab7798ffcf98b11a9525cf65bacdae3fd58d357f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 25 Mar 2011 16:48:50 +0100 Subject: genirq: Expand generic show_interrupts() Some archs want to print extra information for certain irq_chips which is per irq and not per chip. Allow them to provide a chip callback to print the chip name and the extra information. PowerPC wants to print the LEVEL/EDGE type information. Make it configurable. Signed-off-by: Thomas Gleixner --- kernel/irq/Kconfig | 4 ++++ kernel/irq/proc.c | 15 ++++++++++++++- 2 files changed, 18 insertions(+), 1 deletion(-) (limited to 'kernel') diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index 09bef82d74c..00f2c037267 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -31,6 +31,10 @@ config GENERIC_IRQ_PROBE config GENERIC_IRQ_SHOW bool +# Print level/edge extra information +config GENERIC_IRQ_SHOW_LEVEL + bool + # Support for delayed migration from interrupt context config GENERIC_PENDING_IRQ bool diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 760248de109..626d092eed9 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -404,7 +404,20 @@ int show_interrupts(struct seq_file *p, void *v) seq_printf(p, "%*d: ", prec, i); for_each_online_cpu(j) seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); - seq_printf(p, " %8s", desc->irq_data.chip->name); + + if (desc->irq_data.chip) { + if (desc->irq_data.chip->irq_print_chip) + desc->irq_data.chip->irq_print_chip(&desc->irq_data, p); + else if (desc->irq_data.chip->name) + seq_printf(p, " %8s", desc->irq_data.chip->name); + else + seq_printf(p, " %8s", "-"); + } else { + seq_printf(p, " %8s", "None"); + } +#ifdef CONFIG_GENIRC_IRQ_SHOW_LEVEL + seq_printf(p, " %-8s", irqd_is_level_type(&desc->irq_data) ? "Level" : "Edge"); +#endif if (desc->name) seq_printf(p, "-%-8s", desc->name); -- cgit v1.2.3