diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/xics.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/xics.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 0fc830f576f..6b1a005cc0c 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -310,12 +310,6 @@ static void xics_mask_irq(unsigned int virq) static unsigned int xics_startup(unsigned int virq) { - unsigned int irq; - - /* force a reverse mapping of the interrupt so it gets in the cache */ - irq = (unsigned int)irq_map[virq].hwirq; - irq_radix_revmap(xics_host, irq); - /* unmask it */ xics_unmask_irq(virq); return 0; @@ -346,7 +340,7 @@ static inline unsigned int xics_remap_irq(unsigned int vec) if (vec == XICS_IRQ_SPURIOUS) return NO_IRQ; - irq = irq_radix_revmap(xics_host, vec); + irq = irq_radix_revmap_lookup(xics_host, vec); if (likely(irq != NO_IRQ)) return irq; @@ -530,6 +524,9 @@ static int xics_host_map(struct irq_host *h, unsigned int virq, { pr_debug("xics: map virq %d, hwirq 0x%lx\n", virq, hw); + /* Insert the interrupt mapping into the radix tree for fast lookup */ + irq_radix_revmap_insert(xics_host, virq, hw); + get_irq_desc(virq)->status |= IRQ_LEVEL; set_irq_chip_and_handler(virq, xics_irq_chip, handle_fasteoi_irq); return 0; |