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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2011-02-22 21:07:44 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-23 22:27:54 +0100
commitbcc7c1244fcfd852b9f4590935491057e1cab9dd (patch)
tree4b68fc51466e8b42f343d6f26db0f1200d595c50 /arch/x86/kernel/irqinit.c
parent9079b35364e75ce6b968a179f861d2f819f33e61 (diff)
downloadop-kernel-dev-bcc7c1244fcfd852b9f4590935491057e1cab9dd.zip
op-kernel-dev-bcc7c1244fcfd852b9f4590935491057e1cab9dd.tar.gz
x86: ioapic: Add OF bindings for IO_APIC
ioapic_xlate provides a translation from the information in device tree to ioapic related informations. This includes - obtaining hw irq which is the vector number "=> pin number + gsi" - obtaining type (level/edge/..) - programming this information into ioapic ioapic_add_ofnode adds an irq_domain based on informations from the device tree. This information (irq_domain) is required in order to map a device to its proper interrupt controller. [ tglx: Adapted to the io_apic changes, which let us move that whole code to devicetree.c ] Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: sodaville@linutronix.de Cc: devicetree-discuss@lists.ozlabs.org LKML-Reference: <1298405266-1624-10-git-send-email-bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/irqinit.c')
-rw-r--r--arch/x86/kernel/irqinit.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 4cadf86..9f76f89 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -119,6 +119,12 @@ void __init init_IRQ(void)
int i;
/*
+ * We probably need a better place for this, but it works for
+ * now ...
+ */
+ x86_add_irq_domains();
+
+ /*
* On cpu 0, Assign IRQ0_VECTOR..IRQ15_VECTOR's to IRQ 0..15.
* If these IRQ's are handled by legacy interrupt-controllers like PIC,
* then this configuration will likely be static after the boot. If
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