[Mesa-dev] [PATCH 2/3] i965: we want 64bit writes for depth count

Eric Anholt eric at anholt.net
Mon Jul 2 10:24:42 PDT 2012

Daniel Vetter <daniel.vetter at ffwll.ch> writes:

> ... and the hardware seems to take the lenght of the pipe control
> command to indicate whether the write is 64bit or 32bit. Which makes
> sense for immediate writes.
> I've discovered this by writing a pattern into the query object bo and
> noticing that the high 32bits are left intact, even on those pipe
> control writes that seemingly worked.

From what I've seen of simulator code, this is expected.

Ditto on "PIPE_CONTROL_5, ewww".
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