Well I'd assume thats how we'd handle it - I queue 50 operations, thats
what 5000 clocks. Its not worth rescheduling for that.
> you can not pull such MMU stunts for the _same_ process. The problem is
> framebuffer access from the _same_ process. You can not touch _any_ of the
> framebuffer when an accelerated command is running (on most cards). You
> can touch it shortly after it's finished. XFree86 + XAA has no such
> problems, as all of X's code is behaving 'nicely'.
Firstly if its short operations then I'll have finished the ops before
I get back. Secondly if its not I can flip the mmu state of those pages
and block on fault the task.
Alan
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