From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Mikael Starvik <mikael.starvik@axis.com>
Cc: Johan Adolfsson <johan.adolfsson@axis.com>,
"'Marcelo Tosatti'" <marcelo@conectiva.com.br>,
"'Linus Torvalds'" <torvalds@transmeta.com>,
"'Linux Kernel Mailing List'" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH] Avoid PC(?) specific cascade dma reservation inkernel /dma.c
Date: 09 Mar 2003 20:32:56 +0000 [thread overview]
Message-ID: <1047241975.6396.1.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <3C6BEE8B5E1BAC42905A93F13004E8AB017DE880@mailse01.axis.se>
On Sun, 2003-03-09 at 13:49, Mikael Starvik wrote:
> >I don't know of any PC cards that can support ISA DMA channel 4 so I
> >guess simply because of that it hasn't happened. Do you actually
> >know of any DMA 4 capable ISA devices or is it used for onboard
> >ISA devices ?
>
> In this case it is used in a non ISA capable system where DMA channel
> numbers doesn't relate to ISA numbers in any way.
So what happens if someone plugs a PCI/ISA bridge into an axis system.
Surely you should be reporting no ISA DMA and having a set of similar
axis specific DMA handlers - or does it really look so close to ISA think ?
next prev parent reply other threads:[~2003-03-09 19:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-09 13:49 Mikael Starvik
2003-03-09 20:32 ` Alan Cox [this message]
2003-03-10 6:25 Mikael Starvik
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