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Old 01-06-06, 10:27 AM   #16
zander
NVIDIA Corporation
 
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Join Date: Aug 2002
Posts: 3,740
Default Re: horrible 2D performance

@PrakashP: ideally the kernel would configure and support a WC entry in the PAT, but in addition to basic support that's trivial to implement on Linux (even taking into account the errata you refer to), there's been interest in establishing a mechanism to prevent the creation of mappings with conflicting memory types. This is relatively simple for the NVIDIA driver to ensure internally, but non-trivial to implement globally.
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