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Re: [PATCH] Fix 32bit kernels on R4k with 128 byte cache line size

To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Subject: Re: [PATCH] Fix 32bit kernels on R4k with 128 byte cache line size
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 8 Jul 2008 14:02:34 +0100
Cc: linux-mips@linux-mips.org
In-reply-to: <20080708124634.4EDFBC3562@solo.franken.de>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20080708124634.4EDFBC3562@solo.franken.de>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.17 (2007-11-01)
On Tue, Jul 08, 2008 at 02:46:34PM +0200, Thomas Bogendoerfer wrote:

> The generated copy_page for R4k CPU with a 128 byte cache line size used
> Create Dirty Exclusive cache line operations even if only part of the
> cache line was filled.  This change avoids generating cache operations,
> if only part of the cache line size is copied in one loop. It also
> increases the maxmimum loop size, because the generated code even fits
> into the available space for r4k CPUs with 128 byte cache line size.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Thanks - another important fix in the last minute ...

Applied, will send to Linus tonight.

  Ralf

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