[Mesa-dev] [PATCH] gallium: add pipe_grid_info::partial_block

[Marek Olšák]

On Tue, Jan 8, 2019 at 5:25 PM Ilia Mirkin <imirkin at alum.mit.edu> wrote:

> Why does this need to be in p_state? And who is responsible for
> setting it (and how will it be set)?
>

Oh right, there is a way to get it out of p_state.h if needed.

It should be set to 0 by default.

If your thread block is 8x8x1, but you need to launch 10x8x1 threads, set
partial_block = {2, 0, 0}. It will launch the following thread blocks:
8x8x1
2x8x1

It's the same as launching 16x8x1 threads and doing this at the beginning
of the compute shader:
  if (globalThreadID.x >= 10) return;

Marek
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