summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorMichael Ellerman <michael@ellerman.id.au>2009-04-05 16:05:02 +0000
committerPaul Mackerras <paulus@samba.org>2009-04-07 15:19:00 +1000
commitc7d07fdd5af084bbd0a7921f9b07037b9bc8829d (patch)
treea4204247e8106531ee09e91a249bf632eed4d2e2
parentcb93d568e1ed2596e27f35b39241fe83955d9b26 (diff)
downloadblackbird-op-linux-c7d07fdd5af084bbd0a7921f9b07037b9bc8829d.tar.gz
blackbird-op-linux-c7d07fdd5af084bbd0a7921f9b07037b9bc8829d.zip
powerpc: Print information about mapping hw irqs to virtual irqs
The irq remapping layer seems to cause some confusion when people see a different irq number in /proc/interrupts vs the one they request in their driver or DTS. So have the irq remapping layer print out a message when we map an irq. The message is only printed the first time the irq is mapped, and it's KERN_DEBUG so most people won't see it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/kernel/irq.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 5576147e57b6..8c1a4966867e 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -672,11 +672,13 @@ unsigned int irq_create_mapping(struct irq_host *host,
return NO_IRQ;
}
}
- pr_debug("irq: -> obtained virq %d\n", virq);
if (irq_setup_virq(host, virq, hwirq))
return NO_IRQ;
+ printk(KERN_DEBUG "irq: irq %lu on host %s mapped to virtual irq %u\n",
+ hwirq, host->of_node ? host->of_node->full_name : "null", virq);
+
return virq;
}
EXPORT_SYMBOL_GPL(irq_create_mapping);
OpenPOWER on IntegriCloud