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Memory management for graphics processors

Memory management for graphics processors

Posted Nov 9, 2007 1:11 UTC (Fri) by zlynx (subscriber, #2285)
In reply to: Memory management for graphics processors by jwb
Parent article: Memory management for graphics processors

I believe that the Linux kernel DRM (direct rendering) modules are supposed to check the
command stream to ensure that cannot happen.

I suppose that with a very optimized DMA design, this might not be possible. In that case
you'd have to trust the X server and OpenGL driver to take care of it.


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Memory management for graphics processors

Posted Nov 9, 2007 19:05 UTC (Fri) by nix (subscriber, #2304) [Link]

Unless the commands are so simple they aren't Turing-complete, or their 
form is extremely restricted and stereotyped, I suspect this reduces to 
solving Rice's theorem, which is of course impossible in the general case 
for just the same reason solving the halting problem is, and is 
ridiculously difficult even in most useful special cases.


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