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radeonsi/gfx10: improve performance for TES using PrimID but not exporting it

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This field is really for the primitive export to the pixel shader.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
This commit is contained in:
Marek Olšák 2019-12-16 21:05:05 -05:00
parent aa3df12fc2
commit e79f55ff86
1 changed files with 2 additions and 1 deletions
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3
src/gallium/drivers/radeonsi/si_state_shaders.c
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@ -1202,7 +1202,8 @@ static void gfx10_shader_ngg(struct si_screen *sscreen, struct si_shader *shader
shader->ctx_reg.ngg.vgt_primitiveid_en =
S_028A84_PRIMITIVEID_EN(es_enable_prim_id) |
S_028A84_NGG_DISABLE_PROVOK_REUSE(es_enable_prim_id);
S_028A84_NGG_DISABLE_PROVOK_REUSE(shader->key.mono.u.vs_export_prim_id ||
gs_sel->info.writes_primid);
if (gs_type == PIPE_SHADER_GEOMETRY) {
shader->ctx_reg.ngg.vgt_esgs_ring_itemsize = es_sel->esgs_itemsize / 4;