diff options
| -rw-r--r-- | arch/mips/mti-malta/malta-int.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index cb675ec6f283..54f56d5a96c4 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -232,6 +232,17 @@ void __init arch_init_irq(void) { int corehi_irq; + /* + * Preallocate the i8259's expected virq's here. Since irqchip_init() + * will probe the irqchips in hierarchial order, i8259 is probed last. + * If anything allocates a virq before the i8259 is probed, it will + * be given one of the i8259's expected range and consequently setup + * of the i8259 will fail. + */ + WARN(irq_alloc_descs(I8259A_IRQ_BASE, I8259A_IRQ_BASE, + 16, numa_node_id()) < 0, + "Cannot reserve i8259 virqs at IRQ%d\n", I8259A_IRQ_BASE); + i8259_set_poll(mips_pcibios_iack); irqchip_init(); |