diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2011-05-04 15:02:15 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-05-04 15:02:15 +1000 |
| commit | 476eb4912601a8c01e6702b9a029f476b4b131d2 (patch) | |
| tree | 2ed0b8c166c7cb46174318fe187f5edc062829be /arch/powerpc/kernel/irq.c | |
| parent | 65f47f1339dfcffcd5837a307172fb41aa39e479 (diff) | |
powerpc/irq: Stop exporting irq_map
First step in eliminating irq_map[] table entirely
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/irq.c')
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 4f5d6e751a6..a81dd74414b 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -481,20 +481,42 @@ void do_softirq(void) * IRQ controller and virtual interrupts */ +/* The main irq map itself is an array of NR_IRQ entries containing the + * associate host and irq number. An entry with a host of NULL is free. + * An entry can be allocated if it's free, the allocator always then sets + * hwirq first to the host's invalid irq number and then fills ops. + */ +struct irq_map_entry { + irq_hw_number_t hwirq; + struct irq_host *host; +}; + static LIST_HEAD(irq_hosts); static DEFINE_RAW_SPINLOCK(irq_big_lock); static unsigned int revmap_trees_allocated; static DEFINE_MUTEX(revmap_trees_mutex); -struct irq_map_entry irq_map[NR_IRQS]; +static struct irq_map_entry irq_map[NR_IRQS]; static unsigned int irq_virq_count = NR_IRQS; static struct irq_host *irq_default_host; +irq_hw_number_t irqd_to_hwirq(struct irq_data *d) +{ + return irq_map[d->irq].hwirq; +} +EXPORT_SYMBOL_GPL(irqd_to_hwirq); + irq_hw_number_t virq_to_hw(unsigned int virq) { return irq_map[virq].hwirq; } EXPORT_SYMBOL_GPL(virq_to_hw); +struct irq_host *virq_to_host(unsigned int virq) +{ + return irq_map[virq].host; +} +EXPORT_SYMBOL_GPL(virq_to_host); + static int default_irq_host_match(struct irq_host *h, struct device_node *np) { return h->of_node != NULL && h->of_node == np; @@ -1103,7 +1125,7 @@ static int virq_debug_show(struct seq_file *m, void *private) struct irq_chip *chip; seq_printf(m, "%5d ", i); - seq_printf(m, "0x%05lx ", virq_to_hw(i)); + seq_printf(m, "0x%05lx ", irq_map[i].hwirq); chip = irq_desc_get_chip(desc); if (chip && chip->name) |