[Mesa-dev] [PATCH] i965: Allocate register sets at screen creation, not context creation.

[Eric Anholt]

Kenneth Graunke <kenneth at whitecape.org> writes:

> Register sets depend on the particular hardware generation, but don't
> depend on anything in the actual OpenGL context.  Computing them is
> fairly expensive, and they take up a large amount of memory.  Putting
> them in the screen allows us to compute/allocate them once for all
> contexts, saving both time and space.
>
> Improves the performance of a context creation/destruction
> microbenchmark by about 3x on my Haswell i7-4750HQ.

Reviewed-by: Eric Anholt <eric at anholt.net>
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