Re: [PATCH] Use real cache invalidate

linux-mips

Re: [PATCH] Use real cache invalidate

To:	Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Subject:	Re: [PATCH] Use real cache invalidate
From:	Ralf Baechle <ralf@linux-mips.org>
Date:	Tue, 27 Nov 2007 14:16:23 +0000
Cc:	linux-mips@linux-mips.org
In-reply-to:	<20071126224001.48CF6C2B26@solo.franken.de>
Original-recipient:	rfc822;linux-mips@linux-mips.org
References:	<20071126224001.48CF6C2B26@solo.franken.de>
Sender:	linux-mips-bounce@linux-mips.org
User-agent:	Mutt/1.5.17 (2007-11-01)

On Mon, Nov 26, 2007 at 11:40:01PM +0100, Thomas Bogendoerfer wrote:

> R10k non coherent machines need a real dma cache invalidate to get
> rid of speculative stores in cache.

Wonderful.  This should also deliver a slight performance benefit for
other systems.

  Ralf

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