Date: Thu, 17 Feb 2005 19:58:51 +0000
From: Russell King <rmk+lkml@arm.linux.org.uk>
To: Frank Buss <fb@frank-buss.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Problems with dma_mmap_writecombine on mach-pxa
Message-ID: <20050217195851.B22752@flint.arm.linux.org.uk>
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	linux-kernel@vger.kernel.org
References: <20050217181241.A22752@flint.arm.linux.org.uk> <20050217191436.942345B874@frankbuss.de>
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In-Reply-To: <20050217191436.942345B874@frankbuss.de>; from fb@frank-buss.de on Thu, Feb 17, 2005 at 08:14:34PM +0100
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On Thu, Feb 17, 2005 at 08:14:34PM +0100, Frank Buss wrote:
> > Please try this (and revert your changes):
> 
> thanks, this could fix the bug with the vm_pgoff, but I don't think this
> will fix the problem with the ignored memory access after the first
> PAGE_SIZE from the mapped memory. I'll try it tommorow, when I'm again at my
> customers site, where I have access to the board.

Since we map the whole lot in one go, if you get one page, there's no
reason why you shouldn't get the lot.  This is why I'm wondering if
it has something to do with your other modifications.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 PCMCIA      - http://pcmcia.arm.linux.org.uk/
                 2.6 Serial core
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