From: Ralf Baechle <ralf@linux-mips.org>
To: "Anoop P.A." <Anoop_P.A@pmc-sierra.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Subject: Re: TITAN GE driver
Date: Fri, 28 May 2010 17:27:22 +0100 [thread overview]
Message-ID: <20100528162722.GB7148@linux-mips.org> (raw)
In-Reply-To: <A7DEA48C84FD0B48AAAE33F328C0201404E2D834@BBY1EXM11.pmc_nt.nt.pmc-sierra.bc.ca>
On Thu, May 27, 2010 at 10:51:47PM -0700, Anoop P.A. wrote:
> Any body used titan GE device with more than 512MB physical memory?
>
>
>
> If buffer is getting allocated above physical address 0x1fff_ffff ( ie.
> 30 bit buffer address) we may have to consider setting XDMA_BUFFADDRPRE
> (0x5018 ) .This is not taken care in original driver. Any body had luck
> in enabling this prefix. I have tried enabling it and I could do flood
> ping with out packet loss. However when I do mass data transfer kernel
> getting panic. Further investigation showed kenel panics because DMA
> copies data to wrong address (which is being used).
The driver has not been used in ages so it's generally in a sad shape,
doesn't even compile. I think nobody touched this driver seriously in
5 years, probably longer. So it's sort of expected to eat your cat or
do other nasty stuff.
Ralf
next prev parent reply other threads:[~2010-05-28 16:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-28 5:51 TITAN GE driver Anoop P.A.
2010-05-28 16:27 ` Ralf Baechle [this message]
2010-06-02 8:10 ` Anoop P.A.
2010-06-02 8:10 ` Anoop P.A.
2010-06-02 8:32 ` Ralf Baechle
2010-06-02 8:58 ` Anoop P.A.
2010-06-02 13:48 ` Guenter Roeck
2010-06-02 14:02 ` Anoop P.A.
2010-06-02 14:15 ` Ralf Baechle
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