From: Marcus Sundberg <mackan@stacken.kth.se>
  To  : ggi-develop@eskimo.com
  Date: Tue, 08 Jun 1999 22:07:19 +0000

Re: Linux memory-mapping problem

Jon M. Taylor wrote:
> 
>         I'm having a very strange linux kernel related problem and I'm hoping
> that someone here (Marcus in particular) might have some insight.  If not
> I'll ask elsewhere.  The problem is that I cannot use remap_page_range() to
> implement the mmap() function on a file so that I can map auxiliary hardware
> buffers (z-buffer, textures, etc) into userspace.  I have tried implementing
> this alternate mmap() system as an extension of fbcon-kgi.c's kgifb_mmap() as
> well as implementing it as a separate function, but no matter what
> contortions I put the code through I always see the same behavior.

Unfortunately I have no idea about this. I still haven't figured out why
the GC mapping doesn't work when don't using USE_VMOPS...

//Marcus
-- 
-------------------------------+------------------------------------
        Marcus Sundberg        | http://www.stacken.kth.se/~mackan/
 Royal Institute of Technology |       Phone: +46 707 295404
       Stockholm, Sweden       |   E-Mail: mackan@stacken.kth.se