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Re: YMF724

From: Alan Cox <alan lxorguk ukuu org uk>
To: sound-list redhat com
Subject: Re: YMF724
Date: Wed, 19 Jan 2000 21:30:34 +0000 (GMT)

> > > weird issues with DMA that I should be aware of?
> > 
> > Lots
> 
> Do you have any pointers to things to read or hints for me?  I got
> time to kill :)

Ok firstly you can't do ISA DMA on the PCI bus. Secondly you cant emulate
ISA irqs properly on the PCI bus.

So you use sideband hacks to emulate it or you use DDMA which is a DMA hack.

Alan

Follow-Ups:
- Re: YMF724
  - From: newsham@lava.net (Tim Newsham)

References:
- Re: YMF724
  - From: newsham@lava.net (Tim Newsham)

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