port-pmax: OT:disable DMA access

Subject: OT:disable DMA access
To: pmax <port-pmax@netbsd.org>
From: Carsten Friede <cfrirede@wh12.tu-dresden.de>
List: port-pmax
Date: 12/20/2002 02:54:50

Hi,

beside my pmax box, I got a ix86 box also running NetBSD 1.5.2 on it.
Dmesg showed, that something is wrong with dma busmastering and that
interrupts are lost. So I decided to disable dma access and go down to
PIO mode 4. That's secure, I guess. Does somebody know how I can achieve
this?
Thanks in advance.

Cheers

Carsten


-- 
 =======Carsten Friede===========================
	Department of Computer Science                                         
	Dresden University of Technology                                      
 =============================================