linux-kernel - Re: [PATCH] x86, efi: Calling __pa() with an ioremap'd address is invalid

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Message-ID: <1318338617.4060.109.camel@mfleming-mobl1.ger.corp.intel.com>
Date:	Tue, 11 Oct 2011 14:10:17 +0100
From:	Matt Fleming <matt@...sole-pimps.org>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	linux-kernel@...r.kernel.org, x86@...nel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <ming@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Zhang Rui <rui.zhang@...el.com>,
	Huang Ying <huang.ying.caritas@...il.com>
Subject: Re: [PATCH] x86, efi: Calling __pa() with an ioremap'd address is
 invalid

On Tue, 2011-10-11 at 14:03 +0100, Matthew Garrett wrote:
> Is there any chance of unifying the 32 and 64-bit code here as well?

I was under the impression that this wasn't possible for the cached case
because the 32-bit code path uses ioremap_cache() whereas 64-bit uses
init_memory_mapping() and __va().

Unless I'm missing something?

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