From: Martin Schwidefsky <schwidefsky@de.ibm.com>
To: Andy Whitcroft <apw@shadowen.org>
Cc: Dave Hansen <haveblue@us.ibm.com>,
"Luck, Tony" <tony.luck@intel.com>, Andi Kleen <ak@suse.de>,
Paul Mackerras <paulus@samba.org>, Andrew Morton <akpm@osdl.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
"Randy.Dunlap" <rdunlap@xenotime.net>,
"Protasevich, Natalie" <Natalie.Protasevich@unisys.com>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH] x86_64: Make NR_IRQS configurable in Kconfig
Date: Thu, 10 Aug 2006 16:53:48 +0200 [thread overview]
Message-ID: <1155221628.14749.60.camel@localhost> (raw)
In-Reply-To: <44DB4547.80007@shadowen.org>
On Thu, 2006-08-10 at 15:40 +0100, Andy Whitcroft wrote:
> Well you could do something more fun with the top of the address. You
> don't need to keep the bytes in the same order for instance. If this
> is really a fair size chunk at the bottom and one at the top then
> taking the address and swapping the bytes like:
>
> ABCDEFGH => BCDAEFGH
>
> Would be a pretty trivial bit of register wibbling (ie very quick),
> but would probabally mean a single flat, smaller sparsemem table would
> cover all likely areas.
Not if you don't know where the objects will be mapped..
--
blue skies,
Martin.
Martin Schwidefsky
Linux for zSeries Development & Services
IBM Deutschland Entwicklung GmbH
"Reality continues to ruin my life." - Calvin.
next prev parent reply other threads:[~2006-08-10 14:53 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-07 15:26 [PATCH] x86_64: Make NR_IRQS configurable in Kconfig Eric W. Biederman
2006-08-07 15:33 ` Andi Kleen
2006-08-07 15:55 ` Eric W. Biederman
2006-08-07 15:59 ` Randy.Dunlap
2006-08-07 16:11 ` Protasevich, Natalie
2006-08-07 16:17 ` Andi Kleen
2006-08-07 16:23 ` Protasevich, Natalie
2006-08-07 16:58 ` Eric W. Biederman
2006-08-07 16:44 ` Eric W. Biederman
2006-08-07 17:00 ` H. Peter Anvin
2006-08-07 17:46 ` Eric W. Biederman
2006-08-07 17:52 ` H. Peter Anvin
2006-08-07 17:30 ` Eric W. Biederman
2006-08-07 17:55 ` Randy.Dunlap
2006-08-07 18:16 ` Eric W. Biederman
2006-08-07 18:53 ` Eric W. Biederman
2006-08-07 19:04 ` Randy.Dunlap
2006-08-07 22:10 ` Eric W. Biederman
2006-08-07 23:55 ` Andrew Morton
2006-08-08 2:17 ` Andi Kleen
2006-08-08 2:41 ` Andrew Morton
2006-08-08 2:47 ` Arjan van de Ven
2006-08-08 5:47 ` [PATCH] x86_64: Auto size the per cpu area Eric W. Biederman
2006-08-08 6:01 ` Andrew Morton
2006-08-08 6:31 ` Eric W. Biederman
2006-08-08 6:01 ` Andi Kleen
2006-08-08 6:46 ` Eric W. Biederman
2006-08-08 6:48 ` Andi Kleen
2006-08-08 7:29 ` Eric W. Biederman
2006-08-08 5:09 ` [PATCH] x86_64: Make NR_IRQS configurable in Kconfig Paul Mackerras
2006-08-08 5:14 ` Andi Kleen
2006-08-08 8:17 ` Martin Schwidefsky
2006-08-09 17:58 ` Luck, Tony
2006-08-09 18:25 ` Dave Hansen
2006-08-10 12:55 ` Martin Schwidefsky
2006-08-10 14:40 ` Andy Whitcroft
2006-08-10 14:53 ` Martin Schwidefsky [this message]
2006-08-07 19:40 ` Adrian Bunk
2006-08-07 22:26 ` Eric W. Biederman
2006-08-07 23:06 ` Adrian Bunk
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