linux-kernel - Re: [PATCH] Align PCI memory regions to page size (4K)

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Message-Id: <20071028.180807.165828961.davem@davemloft.net>
Date:	Sun, 28 Oct 2007 18:08:07 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	gregkh@...e.de
Cc:	barak@...cleus.com, linux-kernel@...r.kernel.org,
	linux-pci@...ey.karlin.mff.cuni.cz, guy@...cleus.com
Subject: Re: [PATCH] Align PCI memory regions to page size (4K) - Fix

From: Greg KH <gregkh@...e.de>
Date: Sun, 28 Oct 2007 13:03:36 -0700

> But doesn't aligning such regions on that alignment break some devices
> as that is not what the device is asking for in the BIOS?

There are also platforms where bootup firmware chooses the
allocations, and that is what we use no matter what.  This is so that
when breaking into the firmware for debugging the firmware can still
access the console device where it had mapped it in the first place.

We really can't do things this way.
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