linux-mips
[Top] [All Lists]

Re: Fix potential bug in au1xxx_ddma_add_device()

To: Domen Puncer <domen.puncer@ultra.si>
Subject: Re: Fix potential bug in au1xxx_ddma_add_device()
From: Freddy Spierenburg <freddy@dusktilldawn.nl>
Date: Tue, 13 Jun 2006 12:35:34 +0200
Cc: linux-mips@linux-mips.org
In-reply-to: <20060613081641.GH5568@domen.ultra.si>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20060413131117.GP11097@dusktilldawn.nl> <20060414060640.GE29489@domen.ultra.si> <20060418092052.GZ11097@dusktilldawn.nl> <20060419062238.GF29489@domen.ultra.si> <20060419072549.GJ11097@dusktilldawn.nl> <20060613081641.GH5568@domen.ultra.si>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.11+cvs20060403
Hi Domen,

On Tue, Jun 13, 2006 at 10:16:42AM +0200, Domen Puncer wrote:
> First a note, that your patch [dbdma.patch] doesn't make any
> difference for me.  Well... at least not an obvious one.

That's exactly what it should do, since it's a bug that I do not
yet expect to happen. So no difference is good for now.

Including the patch, so hopefully Ralf sees it again. :-)


> OK. I have an IDE drive connected now. It's a bit weird, with
> CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA I can't enable dma with
> hdparm, but if works on about 6 MB/sec.
> With CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA, I can enable DMA,
> but it works slow, like 1.7 MB/sec.
> 
> Seems odd to me.

Hmmmm, strange. You should at least expect the other way around.
Transferring you to the mailing list, hopefully somebody over
there has got a clue.


-- 
$ cat ~/.signature
Freddy Spierenburg <freddy@dusktilldawn.nl>  http://freddy.snarl.nl/
GnuPG: 0x7941D1E1=C948 5851 26D2 FA5C 39F1  E588 6F17 FD5D 7941 D1E1
$ # Please read http://www.ietf.org/rfc/rfc2015.txt before complain!

Attachment: dbdma.patch
Description: Text document

Attachment: signature.asc
Description: Digital signature

<Prev in Thread] Current Thread [Next in Thread>
  • Re: Fix potential bug in au1xxx_ddma_add_device(), Freddy Spierenburg <=