| Call To
Action |
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| • | System software
must comprehend Virtual Channel |
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| – | If Root Port and
Endpoint (GPU) support Virtual Channels |
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| beyond VC0 then
initialization is required. |
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| • | Allocate system
memory as USWC memory |
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| whenever
appropriate |
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| – | Compatible with
existing AGP model |
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| – | Should attempt to
allocate contiguous memory blocks |
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| These PCI
Express recommendations |
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| will
improve performance by up to 20% |
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