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-rw-r--r--src/gallium/drivers/radeonsi/si_shader.c45
-rw-r--r--src/gallium/drivers/radeonsi/si_shader.h1
-rw-r--r--src/gallium/drivers/radeonsi/si_state_shaders.c3
3 files changed, 49 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 83bcf5eac18..b04d0f7375a 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -2444,6 +2444,48 @@ handle_semantic:
}
}
+static void si_copy_tcs_inputs(struct lp_build_tgsi_context *bld_base)
+{
+ struct si_shader_context *ctx = si_shader_context(bld_base);
+ struct gallivm_state *gallivm = bld_base->base.gallivm;
+ LLVMValueRef invocation_id, rw_buffers, buffer, buffer_offset;
+ LLVMValueRef lds_vertex_stride, lds_vertex_offset, lds_base;
+ uint64_t inputs;
+
+ invocation_id = unpack_param(ctx, SI_PARAM_REL_IDS, 8, 5);
+
+ rw_buffers = LLVMGetParam(ctx->radeon_bld.main_fn, SI_PARAM_RW_BUFFERS);
+ buffer = build_indexed_load_const(ctx, rw_buffers,
+ lp_build_const_int32(gallivm, SI_HS_RING_TESS_OFFCHIP));
+
+ buffer_offset = LLVMGetParam(ctx->radeon_bld.main_fn, ctx->param_oc_lds);
+
+ lds_vertex_stride = unpack_param(ctx, SI_PARAM_TCS_IN_LAYOUT, 13, 8);
+ lds_vertex_offset = LLVMBuildMul(gallivm->builder, invocation_id,
+ lds_vertex_stride, "");
+ lds_base = get_tcs_in_current_patch_offset(ctx);
+ lds_base = LLVMBuildAdd(gallivm->builder, lds_base, lds_vertex_offset, "");
+
+ inputs = ctx->shader->key.tcs.epilog.inputs_to_copy;
+ while (inputs) {
+ unsigned i = u_bit_scan64(&inputs);
+
+ LLVMValueRef lds_ptr = LLVMBuildAdd(gallivm->builder, lds_base,
+ lp_build_const_int32(gallivm, 4 * i),
+ "");
+
+ LLVMValueRef buffer_addr = get_tcs_tes_buffer_address(ctx,
+ invocation_id,
+ lp_build_const_int32(gallivm, i));
+
+ LLVMValueRef value = lds_load(bld_base, TGSI_TYPE_SIGNED, ~0,
+ lds_ptr);
+
+ build_tbuffer_store_dwords(ctx, buffer, value, 4, buffer_addr,
+ buffer_offset, 0);
+ }
+}
+
static void si_write_tess_factors(struct lp_build_tgsi_context *bld_base,
LLVMValueRef rel_patch_id,
LLVMValueRef invocation_id,
@@ -2585,6 +2627,7 @@ static void si_llvm_emit_tcs_epilogue(struct lp_build_tgsi_context *bld_base)
return;
}
+ si_copy_tcs_inputs(bld_base);
si_write_tess_factors(bld_base, rel_patch_id, invocation_id, tf_lds_offset);
}
@@ -7426,6 +7469,8 @@ int si_shader_create(struct si_screen *sscreen, LLVMTargetMachineRef tm,
shader->key.vs.as_ls != mainp->key.vs.as_ls)) ||
(shader->selector->type == PIPE_SHADER_TESS_EVAL &&
shader->key.tes.as_es != mainp->key.tes.as_es) ||
+ (shader->selector->type == PIPE_SHADER_TESS_CTRL &&
+ shader->key.tcs.epilog.inputs_to_copy) ||
shader->selector->type == PIPE_SHADER_COMPUTE) {
/* Monolithic shader (compiled as a whole, has many variants,
* may take a long time to compile).
diff --git a/src/gallium/drivers/radeonsi/si_shader.h b/src/gallium/drivers/radeonsi/si_shader.h
index 26be25ea456..67b457bf64b 100644
--- a/src/gallium/drivers/radeonsi/si_shader.h
+++ b/src/gallium/drivers/radeonsi/si_shader.h
@@ -304,6 +304,7 @@ struct si_vs_epilog_bits {
/* Common TCS bits between the shader key and the epilog key. */
struct si_tcs_epilog_bits {
unsigned prim_mode:3;
+ uint64_t inputs_to_copy;
};
/* Common PS bits between the shader key and the prolog key. */
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 968fc88e6b4..2aecfa3614a 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -846,6 +846,9 @@ static inline void si_shader_selector_key(struct pipe_context *ctx,
case PIPE_SHADER_TESS_CTRL:
key->tcs.epilog.prim_mode =
sctx->tes_shader.cso->info.properties[TGSI_PROPERTY_TES_PRIM_MODE];
+
+ if (sel == sctx->fixed_func_tcs_shader.cso)
+ key->tcs.epilog.inputs_to_copy = sctx->vs_shader.cso->outputs_written;
break;
case PIPE_SHADER_TESS_EVAL:
if (sctx->gs_shader.cso)