diff options
| author | Bas Nieuwenhuizen <[email protected]> | 2016-05-02 14:59:43 +0200 |
|---|---|---|
| committer | Bas Nieuwenhuizen <[email protected]> | 2016-05-26 22:07:04 +0200 |
| commit | fee3160af9c8c9594e7d452cf3035b03a8f4153a (patch) | |
| tree | 15a2551ff7972fe44987bd1bdd3fcf1a0d3e81bd | |
| parent | 26f436132bbeebb7ec5efd56c1473a13719daccf (diff) | |
radeonsi: Enable dynamic HS.
This allows running the TES on different CU's than the
TCS which results in performance improvements.
v2: Only write the control word from one invocation.
Signed-off-by: Bas Nieuwenhuizen <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader.c | 19 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state_shaders.c | 2 |
2 files changed, 16 insertions, 5 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 11c7c38e5d4..166b2e8a415 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -2532,7 +2532,7 @@ static void si_write_tess_factors(struct lp_build_tgsi_context *bld_base, LLVMValueRef lds_base, lds_inner, lds_outer, byteoffset, buffer; LLVMValueRef out[6], vec0, vec1, rw_buffers, tf_base; unsigned stride, outer_comps, inner_comps, i; - struct lp_build_if_state if_ctx; + struct lp_build_if_state if_ctx, inner_if_ctx; /* Do this only for invocation 0, because the tess levels are per-patch, * not per-vertex. @@ -2604,12 +2604,23 @@ static void si_write_tess_factors(struct lp_build_tgsi_context *bld_base, byteoffset = LLVMBuildMul(gallivm->builder, rel_patch_id, lp_build_const_int32(gallivm, 4 * stride), ""); - /* Store the outputs. */ + lp_build_if(&inner_if_ctx, gallivm, + LLVMBuildICmp(gallivm->builder, LLVMIntEQ, + rel_patch_id, bld_base->uint_bld.zero, "")); + + /* Store the dynamic HS control word. */ + build_tbuffer_store_dwords(ctx, buffer, + lp_build_const_int32(gallivm, 0x80000000), + 1, lp_build_const_int32(gallivm, 0), tf_base, 0); + + lp_build_endif(&inner_if_ctx); + + /* Store the tessellation factors. */ build_tbuffer_store_dwords(ctx, buffer, vec0, - MIN2(stride, 4), byteoffset, tf_base, 0); + MIN2(stride, 4), byteoffset, tf_base, 4); if (vec1) build_tbuffer_store_dwords(ctx, buffer, vec1, - stride - 4, byteoffset, tf_base, 16); + stride - 4, byteoffset, tf_base, 20); lp_build_endif(&if_ctx); } diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c index 2aecfa3614a..116bf27b471 100644 --- a/src/gallium/drivers/radeonsi/si_state_shaders.c +++ b/src/gallium/drivers/radeonsi/si_state_shaders.c @@ -1882,7 +1882,7 @@ static void si_update_vgt_shader_config(struct si_context *sctx) if (sctx->tes_shader.cso) { stages |= S_028B54_LS_EN(V_028B54_LS_STAGE_ON) | - S_028B54_HS_EN(1); + S_028B54_HS_EN(1) | S_028B54_DYNAMIC_HS(1); if (sctx->gs_shader.cso) stages |= S_028B54_ES_EN(V_028B54_ES_STAGE_DS) | |