linux-kernel - Re: [PATCH] dell-wmi: Stop storing pointers to DMI tables

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Message-ID: <1452880405.4941.0.camel@chaos.site>
Date:	Fri, 15 Jan 2016 18:53:25 +0100
From:	Jean Delvare <jdelvare@...e.de>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Pali Rohár <pali.rohar@...il.com>,
	Andy Lutomirski <luto@...nel.org>,
	platform-driver-x86@...r.kernel.org,
	linux-kernel <linux-kernel@...r.kernel.org>,
	stable <stable@...r.kernel.org>
Subject: Re: [PATCH] dell-wmi: Stop storing pointers to DMI tables

Hi Andy,

Le Friday 15 January 2016 à 08:27 -0800, Andy Lutomirski a écrit :
> FWIW, especially if we consider mapping it persistently, maybe we
> should use ioremap_prot and map it both cached and ro.
> 
> Actually, switching to a cached mapping regardless of persistence
> could noticeably help boot times.  UC accesses are very, very slow.

Sorry if it is obvious for everybody else, but what does "UC accesses"
mean?

-- 
Jean Delvare
SUSE L3 Support