From: Ingo Molnar <mingo@elte.hu>
To: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>,
Andi Kleen <andi@firstfloor.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Len Brown <lenb@kernel.org>,
Jason Vas Dias <jason.vas.dias@gmail.com>
Subject: Re: [PATCH] x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC
Date: Tue, 7 Oct 2008 05:41:32 +0200 [thread overview]
Message-ID: <20081007034132.GA3025@elte.hu> (raw)
In-Reply-To: <20081006221122.GC22097@alberich.amd.com>
* Andreas Herrmann <andreas.herrmann3@amd.com> wrote:
> So, let's work around BIOS bugs in Linux then ...
>
> Following patch is almost untested -- especially I didn't get my hands
> on one of the HP Laptops with broken DSDT.
[...]
> On some HP nx6... laptops (e.g. nx6325) BIOS reports an IRQ0 override
> but the SB450 chipset is configured such that timer interrupts goe to
> INT0 of IOAPIC.
>
> Check IRQ0 routing and if it is routed to INT0 of IOAPIC skip the
> timer override.
>
> Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
>
> ---
> arch/x86/kernel/early-quirks.c | 48 ++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 48 insertions(+), 0 deletions(-)
very nice, thanks Andreas! Applied to tip/x86/quirks. This PCI ID based
quirk should be more complete than DMI matches.
Ingo
next prev parent reply other threads:[~2008-10-07 3:42 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-05 18:36 2.6.27-rc8+ - first impressions Dmitry Torokhov
2008-10-05 18:59 ` Rafael J. Wysocki
2008-10-05 19:06 ` Dmitry Torokhov
2008-10-05 19:19 ` Rafael J. Wysocki
2008-10-05 19:27 ` Thomas Gleixner
2008-10-05 21:18 ` Dmitry Torokhov
2008-10-05 21:40 ` Parag Warudkar
2008-10-05 22:29 ` Rafael J. Wysocki
2008-10-06 6:23 ` Dmitry Torokhov
2008-10-06 9:59 ` [PATCH] x86 ACPI: Blacklist two HP machines with buggy BIOSes (Re: 2.6.27-rc8+ - first impressions) Rafael J. Wysocki
2008-10-06 14:54 ` Linus Torvalds
2008-10-06 15:00 ` Ingo Molnar
2008-10-06 17:17 ` Rafael J. Wysocki
2008-10-06 17:51 ` Maciej W. Rozycki
2008-10-06 17:54 ` Ingo Molnar
2008-10-06 20:59 ` Andi Kleen
2008-10-06 21:39 ` Maciej W. Rozycki
2008-10-06 22:11 ` [PATCH] x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC Andreas Herrmann
2008-10-07 3:41 ` Ingo Molnar [this message]
2008-10-07 3:51 ` Dmitry Torokhov
2008-10-07 4:57 ` Ingo Molnar
2008-10-07 11:19 ` Dmitry Torokhov
2008-10-07 15:25 ` Maciej W. Rozycki
2008-10-07 20:31 ` Rafael J. Wysocki
2008-10-06 23:10 ` [PATCH] x86 ACPI: Blacklist two HP machines with buggy BIOSes (Re: 2.6.27-rc8+ - first impressions) Andi Kleen
2008-10-07 1:35 ` Maciej W. Rozycki
2008-10-07 4:42 ` Ingo Molnar
2008-10-07 5:38 ` Andi Kleen
2008-10-07 11:45 ` Matthew Garrett
2008-10-07 12:04 ` Ingo Molnar
2008-10-08 8:23 ` Peter Zijlstra
2008-10-06 17:15 ` Rafael J. Wysocki
2008-10-06 17:54 ` Maciej W. Rozycki
2008-10-05 19:10 ` 2.6.27-rc8+ - first impressions Arjan van de Ven
2008-10-06 6:28 ` Dmitry Torokhov
2008-10-06 19:53 ` Andreas Herrmann
2008-10-07 3:42 ` Dmitry Torokhov
2008-10-07 9:10 ` Andreas Herrmann
2008-10-07 11:37 ` Dmitry Torokhov
2008-10-07 12:07 ` Parag Warudkar
2008-10-08 1:07 ` Dmitry Torokhov
2008-10-07 13:19 ` Andreas Herrmann
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