On Fri, Jan 25, 2002 at 11:42:51AM -0800, Philip Brown wrote:
| 
| As a device driver writer, it feels intrinsically 'wrong' for user-space
| programs to say "map the device registers into my address space, turn off
| all memory protection, and I'll take it from here".

Except for the "turn off all memory protection" part, that's essentially
the way most 3D drivers have to work.  OpenGL *is* the hardware
abstraction layer; you can't interpose another layer without either
reducing performance or restricting access to hardware-specific
features.

Allen

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