From: Thomas Renninger <trenn@suse.de>
To: lenb@kernel.org
Cc: linux-acpi@vger.kernel.org
Subject: Re: [PATCH] Correct irq in ACPI PCI routing table for IBM 3850 M2 and x3950 M2
Date: Mon, 20 Feb 2012 17:52:11 +0100 [thread overview]
Message-ID: <201202201752.11597.trenn@suse.de> (raw)
In-Reply-To: <1329756304-52877-1-git-send-email-trenn@suse.de>
On Monday, February 20, 2012 05:45:04 PM Thomas Renninger wrote:
> This is a quirk for a broken BIOS.
Afaik IBM will release a BIOS update for this.
I still send this patch out for documentation.
This one might still be worth applying because:
- Users with an old BIOS will not run into regressions with
latest kernels using radeon modesetting (by default).
- There existed a quirk interface already for one _PRT variant.
This patch extends this interface to also be able to override
bad BIOS irqs when the other method, hard wired IRQs, compare with
ACPI spec: 6.2.11 _PRT (PCI Routing Table):
In the second model, the PCI interrupts are hardwired to
specific interrupt inputs...
Thomas
prev parent reply other threads:[~2012-02-20 16:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-20 16:45 [PATCH] Correct irq in ACPI PCI routing table for IBM 3850 M2 and x3950 M2 Thomas Renninger
2012-02-20 16:52 ` Thomas Renninger [this message]
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