Re: [Linux-fbdev-devel] Re: Linux-fbdev-devel digest, Vol 1 #229 -

[James S. <jsi...@tr...>]

> does there have to be a solution other than the one that exists now?  

  Yes I like mmap to a large degree. In fact one of the things that has
always excited me was the idea of using kio buffers to manage graphics
hardware like the disk layer does. Think about the speed improvements
since we wouldn't be going threw the VM layer. Basically we have raw
IO instead of for disk for graphcis hardware. Plus we get the bounus of
not worrying about inheritance issues. IRIX doesn't allow the graphics
engine resources to be inherted. You could be but would be quite complex
to handle. This includes file handles as well as mmapped resources. Some
much more as well. 
  Since the networking layer some day is going to go over to kio buffers
in theory we could just feed data directly from the network hardware into
the graphics hardware. Locally we could use enhanced version of mmap, read
and write. 

Okay enough about my pipe dreams :-)