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| author |   David S. Miller <davem@sunset.davemloft.net> | 2006-02-13 18:16:10 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:12:40 -0800 |
| commit | e3999574b48125c9bb0c95e3e9f1c696bf96c3e3 (patch) | |
| tree | a6651da06fa36c3dde33a7be5f0b7192b8442cd7 /arch/sparc64/kernel/irq.c | |
| parent | [SPARC64]: More SUN4V PCI work. (diff) | |
| download | linux-dev-e3999574b48125c9bb0c95e3e9f1c696bf96c3e3.tar.xz linux-dev-e3999574b48125c9bb0c95e3e9f1c696bf96c3e3.zip | |
[SPARC64]: Generic sun4v_build_irq().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/irq.c')
| -rw-r--r-- | arch/sparc64/kernel/irq.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index 51f65054bf18..bcc889a53324 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; |