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authorThomas Gleixner <tglx@linutronix.de>2011-03-25 16:48:50 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-03-25 17:04:20 +0100
commitab7798ffcf98b11a9525cf65bacdae3fd58d357f (patch)
tree834ed73e8ab309895934bcf8bfe9e531ec10b32b /kernel
parent08f1b807355c8d355885a71e7fd462fe9d499411 (diff)
downloadlinux-stericsson-ab7798ffcf98b11a9525cf65bacdae3fd58d357f.tar.gz
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 <tglx@linutronix.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/irq/Kconfig4
-rw-r--r--kernel/irq/proc.c15
2 files changed, 18 insertions, 1 deletions
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 09bef82d74cb..00f2c037267a 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 760248de109d..626d092eed9a 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);