From: Yinghai Lu <yinghai@kernel.org>
Date: Wed, 10 Feb 2010 09:20:05 +0000 (-0800)
Subject: x86: Fix SCI on IOAPIC != 0
X-Git-Tag: v2.6.34-rc2~50^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18dce6ba5c8c6bd0f3ab4efa4cbdd698dab5c40a;p=pandora-kernel.git

x86: Fix SCI on IOAPIC != 0

Thomas Renninger <trenn@suse.de> reported on IBM x3330

booting a latest kernel on this machine results in:

PCI: PCI BIOS revision 2.10 entry at 0xfd61c, last bus=1
PCI: Using configuration type 1 for base access bio: create slab <bio-0> at 0
ACPI: SCI (IRQ30) allocation failed
ACPI Exception: AE_NOT_ACQUIRED, Unable to install System Control Interrupt handler (20090903/evevent-161)
ACPI: Unable to start the ACPI Interpreter

Later all kind of devices fail...

and bisect it down to this commit:
commit b9c61b70075c87a8612624736faf4a2de5b1ed30

    x86/pci: update pirq_enable_irq() to setup io apic routing

it turns out we need to set irq routing for the sci on ioapic1 early.

-v2: make it work without sparseirq too.
-v3: fix checkpatch.pl warning, and cc to stable

Reported-by: Thomas Renninger <trenn@suse.de>
Bisected-by: Thomas Renninger <trenn@suse.de>
Tested-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1265793639-15071-2-git-send-email-yinghai@kernel.org>
Cc: stable@kernel.org
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---

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