Subject: Re: Sharing bus_space maps between drivers
To: None <>
From: Vincent <>
List: tech-kern
Date: 12/29/2006 14:29:37
Jonathan Perkin scribevat:

> However, the PCI BARs are already mapped in the agp driver, and so any
> subsequent attempt to map them with bus_space, as the DRI does, fails.
> Are there any examples in-tree of devices which share the mappings, or
> infrastructure designed to allow concurrent access?  I'm presuming
> that the only reason this worked before a couple of years back is that
> the agp device wasn't enabled then.

What do you need exactly? I mean, you want to alter the mapping or just 
retrieve and access the already existing mapping?