From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [RFT] major libata update
Date: Thu, 18 May 2006 02:48:48 +0100
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To: Jeff Garzik <jeff@garzik.org>
Cc: Linus Torvalds <torvalds@osdl.org>, OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>, Avuton Olrich <avuton@gmail.com>, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, akpm@osdl.org

On Mer, 2006-05-17 at 19:48 -0400, Jeff Garzik wrote:
> Many BIOS ACPI tables from years ago simply _assumed_ that you have 
> hardcoded irq 14/15, even...  Their irq descriptors for 14/15 would be 
> absent or completely non-functional.

For $PIR this is correct the IRQ 14/15 from the IDE controllers in
legacy mode is an ISA IRQ not a PCI one. Welcome to the happy fun
compatibility factory.