Module: Mesa
Branch: master
Commit: e04bf8a61915c4a41171dec584679df42b50712d
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=e04bf8a61915c4a41171dec584679df42b50712d
Author: Timothy Arceri <tarc...@itsqueeze.com>
Date: Thu Nov 23 13:04:46 2017 +1100
radeonsi: add si_nir_load_input_tes()
V2: drop type param and just use ctx->i32
Reviewed-by: Marek Olšák <marek.ol...@amd.com>
---
src/gallium/drivers/radeonsi/si_shader.c | 48 +++++++++++++++++++++++
src/gallium/drivers/radeonsi/si_shader_internal.h | 11 ++++++
2 files changed, 59 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_shader.c
b/src/gallium/drivers/radeonsi/si_shader.c
index ef1b460f45..bb251986ff 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1229,6 +1229,54 @@ static LLVMValueRef fetch_input_tes(
buffer, base, addr, true);
}
+LLVMValueRef si_nir_load_input_tes(struct ac_shader_abi *abi,
+ LLVMValueRef vertex_index,
+ LLVMValueRef param_index,
+ unsigned const_index,
+ unsigned location,
+ unsigned driver_location,
+ unsigned component,
+ unsigned num_components,
+ bool is_patch,
+ bool is_compact)
+{
+ struct si_shader_context *ctx = si_shader_context_from_abi(abi);
+ struct tgsi_shader_info *info = &ctx->shader->selector->info;
+ LLVMValueRef buffer, base, addr;
+
+ driver_location = driver_location / 4;
+
+ buffer = desc_from_addr_base64k(ctx,
ctx->param_tcs_offchip_addr_base64k);
+
+ base = LLVMGetParam(ctx->main_fn, ctx->param_tcs_offchip_offset);
+
+ if (param_index) {
+ /* Add the constant index to the indirect index */
+ param_index = LLVMBuildAdd(ctx->ac.builder, param_index,
+ LLVMConstInt(ctx->i32, const_index,
0), "");
+ } else {
+ param_index = LLVMConstInt(ctx->i32, const_index, 0);
+ }
+
+ addr = get_tcs_tes_buffer_address_from_generic_indices(ctx,
vertex_index,
+ param_index,
driver_location,
+
info->input_semantic_name,
+
info->input_semantic_index,
+ is_patch);
+
+ /* TODO: This will generate rather ordinary llvm code, although it
+ * should be easy for the optimiser to fix up. In future we might want
+ * to refactor buffer_load(), but for now this maximises code sharing
+ * between the NIR and TGSI backends.
+ */
+ LLVMValueRef value[4];
+ for (unsigned i = component; i < num_components + component; i++) {
+ value[i] = buffer_load(&ctx->bld_base, ctx->i32, i, buffer,
base, addr, true);
+ }
+
+ return ac_build_varying_gather_values(&ctx->ac, value, num_components,
component);
+}
+
static void store_output_tcs(struct lp_build_tgsi_context *bld_base,
const struct tgsi_full_instruction *inst,
const struct tgsi_opcode_info *info,
diff --git a/src/gallium/drivers/radeonsi/si_shader_internal.h
b/src/gallium/drivers/radeonsi/si_shader_internal.h
index e05927c7fd..378bfc1a7a 100644
--- a/src/gallium/drivers/radeonsi/si_shader_internal.h
+++ b/src/gallium/drivers/radeonsi/si_shader_internal.h
@@ -277,6 +277,17 @@ LLVMValueRef si_llvm_emit_fetch(struct
lp_build_tgsi_context *bld_base,
enum tgsi_opcode_type type,
unsigned swizzle);
+LLVMValueRef si_nir_load_input_tes(struct ac_shader_abi *abi,
+ LLVMValueRef vertex_index,
+ LLVMValueRef param_index,
+ unsigned const_index,
+ unsigned location,
+ unsigned driver_location,
+ unsigned component,
+ unsigned num_components,
+ bool is_patch,
+ bool is_compact);
+
LLVMValueRef si_llvm_load_input_gs(struct ac_shader_abi *abi,
unsigned input_index,
unsigned vtx_offset_param,
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