From 581af89abab695b197a30b59e6441db6769a6457 Mon Sep 17 00:00:00 2001
From: Nicolai Hähnle <nicolai.haehnle@amd.com>
Date: Sat, 24 Jun 2017 20:03:46 +0200
Subject: radeonsi: implement and use ac_shader_abi::load_ssbo

---
 src/gallium/drivers/radeonsi/si_shader.c          | 16 ++++++++++++++++
 src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c | 15 ++++-----------
 2 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 514d7e169b..eb3c415007 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1804,6 +1804,21 @@ static LLVMValueRef load_ubo(struct ac_shader_abi *abi, LLVMValueRef index)
 	return ac_build_indexed_load_const(&ctx->ac, ptr, index);
 }
 
+static LLVMValueRef
+load_ssbo(struct ac_shader_abi *abi, LLVMValueRef index, bool write)
+{
+	struct si_shader_context *ctx = si_shader_context_from_abi(abi);
+	LLVMValueRef rsrc_ptr = LLVMGetParam(ctx->main_fn,
+					     ctx->param_const_and_shader_buffers);
+
+	index = si_llvm_bound_index(ctx, index, ctx->num_shader_buffers);
+	index = LLVMBuildSub(ctx->gallivm.builder,
+			     LLVMConstInt(ctx->i32, SI_NUM_SHADER_BUFFERS - 1, 0),
+			     index, "");
+
+	return ac_build_indexed_load_const(&ctx->ac, rsrc_ptr, index);
+}
+
 static LLVMValueRef fetch_constant(
 	struct lp_build_tgsi_context *bld_base,
 	const struct tgsi_full_src_register *reg,
@@ -5617,6 +5632,7 @@ static bool si_compile_tgsi_main(struct si_shader_context *ctx,
 	}
 
 	ctx->abi.load_ubo = load_ubo;
+	ctx->abi.load_ssbo = load_ssbo;
 
 	create_function(ctx);
 	preload_ring_buffers(ctx);
diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
index 3dac14da84..565be81457 100644
--- a/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
@@ -83,22 +83,15 @@ shader_buffer_fetch_rsrc(struct si_shader_context *ctx,
 			 const struct tgsi_full_src_register *reg)
 {
 	LLVMValueRef index;
-	LLVMValueRef rsrc_ptr = LLVMGetParam(ctx->main_fn,
-					     ctx->param_const_and_shader_buffers);
 
 	if (!reg->Register.Indirect) {
-		index = LLVMConstInt(ctx->i32,
-				     si_get_shaderbuf_slot(reg->Register.Index), 0);
+		index = LLVMConstInt(ctx->i32, reg->Register.Index, false);
 	} else {
-		index = si_get_bounded_indirect_index(ctx, &reg->Indirect,
-						      reg->Register.Index,
-						      ctx->num_shader_buffers);
-		index = LLVMBuildSub(ctx->gallivm.builder,
-				     LLVMConstInt(ctx->i32, SI_NUM_SHADER_BUFFERS - 1, 0),
-				     index, "");
+		index = si_get_indirect_index(ctx, &reg->Indirect,
+					      reg->Register.Index);
 	}
 
-	return ac_build_indexed_load_const(&ctx->ac, rsrc_ptr, index);
+	return ctx->abi.load_ssbo(&ctx->abi, index, false);
 }
 
 static bool tgsi_is_array_sampler(unsigned target)
-- 
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