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ac/nir: Add ES output to LDS for GFX9. 

Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Bas Nieuwenhuizen 2017-10-20 01:27:12 +02:00 committed by Dave Airlie
parent 3e77333030
commit ec53e52742
1 changed files with 49 additions and 8 deletions
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57
src/amd/common/ac_nir_to_llvm.c
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@ -5854,8 +5854,9 @@ handle_es_outputs_post(struct nir_to_llvm_context *ctx,
{
int j;
uint64_t max_output_written = 0;
LLVMValueRef lds_base = NULL;
for (unsigned i = 0; i < RADEON_LLVM_MAX_OUTPUTS; ++i) {
LLVMValueRef *out_ptr = &ctx->nir->outputs[i * 4];
int param_index;
int length = 4;
@ -5868,20 +5869,60 @@ handle_es_outputs_post(struct nir_to_llvm_context *ctx,
param_index = shader_io_get_unique_index(i);
max_output_written = MAX2(param_index + (length > 4), max_output_written);
}
outinfo->esgs_itemsize = (max_output_written + 1) * 16;
if (ctx->ac.chip_class >= GFX9) {
unsigned itemsize_dw = outinfo->esgs_itemsize / 4;
LLVMValueRef vertex_idx = ac_get_thread_id(&ctx->ac);
LLVMValueRef wave_idx = ac_build_bfe(&ctx->ac, ctx->merged_wave_info,
LLVMConstInt(ctx->ac.i32, 24, false),
LLVMConstInt(ctx->ac.i32, 4, false), false);
vertex_idx = LLVMBuildOr(ctx->ac.builder, vertex_idx,
LLVMBuildMul(ctx->ac.builder, wave_idx,
LLVMConstInt(ctx->i32, 64, false), ""), "");
lds_base = LLVMBuildMul(ctx->ac.builder, vertex_idx,
LLVMConstInt(ctx->i32, itemsize_dw, 0), "");
}
for (unsigned i = 0; i < RADEON_LLVM_MAX_OUTPUTS; ++i) {
LLVMValueRef dw_addr;
LLVMValueRef *out_ptr = &ctx->nir->outputs[i * 4];
int param_index;
int length = 4;
if (!(ctx->output_mask & (1ull << i)))
continue;
if (i == VARYING_SLOT_CLIP_DIST0)
length = ctx->num_output_clips + ctx->num_output_culls;
param_index = shader_io_get_unique_index(i);
if (lds_base) {
dw_addr = LLVMBuildAdd(ctx->builder, lds_base,
LLVMConstInt(ctx->i32, param_index * 4, false),
"");
}
for (j = 0; j < length; j++) {
LLVMValueRef out_val = LLVMBuildLoad(ctx->builder, out_ptr[j], "");
out_val = LLVMBuildBitCast(ctx->builder, out_val, ctx->i32, "");
ac_build_buffer_store_dword(&ctx->ac,
ctx->esgs_ring,
out_val, 1,
NULL, ctx->es2gs_offset,
(4 * param_index + j) * 4,
1, 1, true, true);
if (ctx->ac.chip_class >= GFX9) {
lds_store(ctx, dw_addr,
LLVMBuildLoad(ctx->builder, out_ptr[j], ""));
dw_addr = LLVMBuildAdd(ctx->builder, dw_addr, ctx->i32one, "");
} else {
ac_build_buffer_store_dword(&ctx->ac,
ctx->esgs_ring,
out_val, 1,
NULL, ctx->es2gs_offset,
(4 * param_index + j) * 4,
1, 1, true, true);
}
}
}
outinfo->esgs_itemsize = (max_output_written + 1) * 16;
}
static void