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iris: Enable tessellation redistribution 

This patch adds Tessellation Distribution on top of Geometry
Distribution. Using recommended values based on performance studies
across a range of workloads.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12091>
This commit is contained in:
Anuj Phogat 2020-06-04 11:50:35 -07:00 committed by Marge Bot
parent 867e2e0716
commit 20c0ca75f5
1 changed files with 10 additions and 0 deletions
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10
src/gallium/drivers/iris/iris_state.c
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@ -4435,6 +4435,16 @@ iris_store_tes_state(const struct intel_device_info *devinfo,
te.TEEnable = true;
te.MaximumTessellationFactorOdd = 63.0;
te.MaximumTessellationFactorNotOdd = 64.0;
#if GFX_VERx10 >= 125
te.TessellationDistributionMode = TEDMODE_RR_FREE;
te.TessellationDistributionLevel = TEDLEVEL_PATCH;
/* 64_TRIANGLES */
te.SmallPatchThreshold = 3;
/* 1K_TRIANGLES */
te.TargetBlockSize = 8;
/* 1K_TRIANGLES */
te.LocalBOPAccumulatorThreshold = 1;
#endif
}
iris_pack_command(GENX(3DSTATE_DS), ds_state, ds) {