diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2017-06-20 01:37:16 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-06-22 18:21:12 +0200 |
| commit | 9dc6be3d419398eae9a19cd09b7969ceff8eaf10 (patch) | |
| tree | 3e5ededbce858a2b186459b7a911f2cf2d4a53e8 /kernel/irq/irqdomain.c | |
| parent | ae904cafd59d7120ef2afb97b252eadeba45e95f (diff) | |
genirq/irqdomain: Add map counter
Add a map counter instead of counting radix tree entries for
diagnosis. That also gives correct information for linear domains.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170619235444.459397746@linutronix.de
Diffstat (limited to 'kernel/irq/irqdomain.c')
| -rw-r--r-- | kernel/irq/irqdomain.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index e1b925bea205..8d5805c655b6 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -423,6 +423,7 @@ void irq_domain_disassociate(struct irq_domain *domain, unsigned int irq) irq_data->domain = NULL; irq_data->hwirq = 0; + domain->mapcount--; /* Clear reverse map for this hwirq */ if (hwirq < domain->revmap_size) { @@ -474,6 +475,7 @@ int irq_domain_associate(struct irq_domain *domain, unsigned int virq, domain->name = irq_data->chip->name; } + domain->mapcount++; if (hwirq < domain->revmap_size) { domain->linear_revmap[hwirq] = virq; } else { @@ -1081,6 +1083,7 @@ static void irq_domain_insert_irq(int virq) struct irq_domain *domain = data->domain; irq_hw_number_t hwirq = data->hwirq; + domain->mapcount++; if (hwirq < domain->revmap_size) { domain->linear_revmap[hwirq] = virq; } else { @@ -1110,6 +1113,7 @@ static void irq_domain_remove_irq(int virq) struct irq_domain *domain = data->domain; irq_hw_number_t hwirq = data->hwirq; + domain->mapcount--; if (hwirq < domain->revmap_size) { domain->linear_revmap[hwirq] = 0; } else { |