From e3999574b48125c9bb0c95e3e9f1c696bf96c3e3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 13 Feb 2006 18:16:10 -0800 Subject: [SPARC64]: Generic sun4v_build_irq(). Signed-off-by: David S. Miller --- arch/sparc64/kernel/irq.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'arch/sparc64/kernel/irq.c') diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index 51f6505..bcc889a 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -303,6 +303,38 @@ out: return __irq(bucket); } +unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino, int pil, unsigned char flags) +{ + struct ino_bucket *bucket; + unsigned long sysino; + + sysino = sun4v_devino_to_sysino(devhandle, devino); + + printk(KERN_INFO "sun4v_irq: Mapping ( devh[%08x] devino[%08x] ) " + "--> sysino[%016lx]\n", devhandle, devino, sysino); + + bucket = &ivector_table[sysino]; + + /* Catch accidental accesses to these things. IMAP/ICLR handling + * is done by hypervisor calls on sun4v platforms, not by direct + * register accesses. + */ + bucket->imap = ~0UL; + bucket->iclr = ~0UL; + + bucket->pil = pil; + bucket->flags = flags; + + bucket->irq_info = kmalloc(sizeof(struct irq_desc), GFP_ATOMIC); + if (!bucket->irq_info) { + prom_printf("IRQ: Error, kmalloc(irq_desc) failed.\n"); + prom_halt(); + } + memset(bucket->irq_info, 0, sizeof(struct irq_desc)); + + return __irq(bucket); +} + static void atomic_bucket_insert(struct ino_bucket *bucket) { unsigned long pstate; -- cgit v1.1