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ac/nir: Don't write to the dynamic HS word on GFX9.

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Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Bas Nieuwenhuizen 2017-10-16 17:45:06 +02:00
parent d8bd693d03
commit 25efef40d2
1 changed files with 16 additions and 11 deletions
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27
src/amd/common/ac_nir_to_llvm.c
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@ -6047,26 +6047,31 @@ write_tess_factors(struct nir_to_llvm_context *ctx)
tf_base = ctx->tess_factor_offset;
byteoffset = LLVMBuildMul(ctx->builder, rel_patch_id,
LLVMConstInt(ctx->i32, 4 * stride, false), "");
unsigned tf_offset = 0;
ac_nir_build_if(&inner_if_ctx, ctx,
LLVMBuildICmp(ctx->builder, LLVMIntEQ,
rel_patch_id, ctx->i32zero, ""));
if (ctx->options->chip_class <= VI) {
ac_nir_build_if(&inner_if_ctx, ctx,
LLVMBuildICmp(ctx->builder, LLVMIntEQ,
rel_patch_id, ctx->i32zero, ""));
/* Store the dynamic HS control word. */
ac_build_buffer_store_dword(&ctx->ac, buffer,
LLVMConstInt(ctx->i32, 0x80000000, false),
1, ctx->i32zero, tf_base,
0, 1, 0, true, false);
ac_nir_build_endif(&inner_if_ctx);
/* Store the dynamic HS control word. */
ac_build_buffer_store_dword(&ctx->ac, buffer,
LLVMConstInt(ctx->i32, 0x80000000, false),
1, ctx->i32zero, tf_base,
0, 1, 0, true, false);
tf_offset += 4;
ac_nir_build_endif(&inner_if_ctx);
}
/* Store the tessellation factors. */
ac_build_buffer_store_dword(&ctx->ac, buffer, vec0,
MIN2(stride, 4), byteoffset, tf_base,
4, 1, 0, true, false);
tf_offset, 1, 0, true, false);
if (vec1)
ac_build_buffer_store_dword(&ctx->ac, buffer, vec1,
stride - 4, byteoffset, tf_base,
20, 1, 0, true, false);
16 + tf_offset, 1, 0, true, false);
//TODO store to offchip for TES to read - only if TES reads them
if (1) {