Re: [RFC PATCH i-g-t] test/prime_vgem: Examine blitter access path

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Quoting Janusz Krzysztofik (2019-12-09 11:07:52)
> On future hardware with missing GGTT BAR we won't be able to exercise
> dma-buf access via that path.  However, access to the dma sg list
> feature exposed by dma-buf can still be tested through blitter.
> Unfortunately we don't have any equivalently simple tests that use
> blitter.  Provide them.
> 
> Suggested-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@xxxxxxxxxxxxxxx>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> ---
> According to Trybot, these subtests are failing on Sandybridge (Gen6)
> and Haswell (G75), can you please advice how those platforms should be
> handled?

"fast copy" is gen9+. Just use regular same-speed XY_SRC_COPY.
-Chris
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