Commit c7d07fdd authored by Michael Ellerman's avatar Michael Ellerman Committed by Paul Mackerras

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: default avatarMichael Ellerman <michael@ellerman.id.au>
Acked-by: default avatarGrant Likely <grant.likely@secretlab.ca>
Acked-by: default avatarWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent cb93d568
...@@ -672,11 +672,13 @@ unsigned int irq_create_mapping(struct irq_host *host, ...@@ -672,11 +672,13 @@ unsigned int irq_create_mapping(struct irq_host *host,
return NO_IRQ; return NO_IRQ;
} }
} }
pr_debug("irq: -> obtained virq %d\n", virq);
if (irq_setup_virq(host, virq, hwirq)) if (irq_setup_virq(host, virq, hwirq))
return NO_IRQ; 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; return virq;
} }
EXPORT_SYMBOL_GPL(irq_create_mapping); EXPORT_SYMBOL_GPL(irq_create_mapping);
......
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