Re: Athlon/AGP issue update

David S. Miller
2002-01-23T18:40:34Z

From: "Albert D. Cahalan" <acahalan@cs.uml.edu>
Date: Wed, 23 Jan 2002 12:09:40 -0500 (EST)

> Yes there most certainly are. The driver's MMAP method can fully edit
> the page protection attributes for that mmap area as it pleases.

That doesn't help for MAP_ANON pages.

But it helps _THIS_ case, DRM(dma_mmap) is where all AGP memory comes
from and we can control the page protections for every page there.

If you want to start a thread about controlling cacheability
generically from mmap() or whatever idea you have, please
start a different thread and change the Subject.