[Mesa-dev] [PATCH] i965: Use the actual hardware g0 register for texel offset setup.

Eric Anholt eric at anholt.net
Fri Oct 28 11:36:57 PDT 2011

On Thu, 27 Oct 2011 10:49:14 -0700, Kenneth Graunke <kenneth at whitecape.org> wrote:
> The idea here is to set up the message header with the Sampler State
> pointer which the hardware provides as part of the PS Thread Payload in
> register g0.
> Unfortunately, the existing code
>    fs_reg(GRF, 0, BRW_REGISTER_TYPE_UD))
> actually references "virtual GRF 0" rather than the hardware g0.  This
> is just some arbitrary GRF temporary which will get register allocated.
> So, we ended up setting up the header with garbage.
> Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>

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

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