x86 quirk: Fix polarity for IRQ0 pin2 override on SB800 systems

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On some SB800 systems polarity for IOAPIC pin2 is wrongly
specified as low active by BIOS. This caused system hangs after
resume from S3 when HPET was used in one-shot mode on such
systems because a timer interrupt was missed (HPET signal is
high active).

For more details see:

  http://marc.info/?l=linux-kernel&m=129623757413868

Tested-by: Manoj Iyer <manoj.iyer@canonical.com>
Tested-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: stable@kernel.org # 37.x, 32.x
LKML-Reference: <20110224145346.GD3658@alberich.amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Andreas Herrmann 2011-02-24 15:53:46 +01:00 • committed by Ingo Molnar

parent 7b62dbec90

commit 7f74f8f28a

3 changed files with 18 additions and 13 deletions

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1

arch/x86/include/asm/acpi.h

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14

arch/x86/kernel/acpi/boot.c

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16

arch/x86/kernel/early-quirks.c

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