Subject: Re: EBSA Bootloader: PCI Bus-Masters?
To: Bruce Martin <BruceM@cat.co.za>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: port-arm32
Date: 05/17/1999 08:38:31
On Mon, 17 May 1999 15:47:40 +0200 
 Bruce Martin <BruceM@cat.co.za> wrote:

 > I've written a working bootloader, and part of its task is
 > to scan the PCI bus and allocate memory. There are two bits
 > per device, indicating whther or not th device needs I/O
 > and/or Memory access. There are straightforward to set up.
 > However, there is a this bit, to decide whether or not
 > Bus-Master access is required: how do I determine whether a
 > certain slot requires this access, so that I know whether to
 > set/clear this bit?

The NetBSD kernel deals with the bus-master bit, really.  Each driver makes
sure its set if it needs it.

Don't know how precisely correct that is, but... :-)

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>