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| author | Marek Olšák <marek.olsak@amd.com> | 2017-09-05 20:09:05 +0200 |
|---|---|---|
| committer | Marek Olšák <marek.olsak@amd.com> | 2017-09-07 13:00:07 +0200 |
| commit | 7ec64bd88cc6f3b5977e3526c5ecff1e07847e8c (patch) | |
| tree | 4e9cea3e80fcb72e9a0b4996517e54736bb69755 | |
| parent | 07fe10c75d0f099c1a4f6b5e41c65ed46f30223e (diff) | |
radeonsi: don't read tcs_out_lds_layout.patch_stride from an SGPR
Same as before, writing TCS outputs to LDS is rare.
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 9117aec5b7..e0e9c14beb 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -320,12 +320,6 @@ get_tcs_in_patch_stride(struct si_shader_context *ctx) return unpack_param(ctx, ctx->param_vs_state_bits, 8, 13); } -static LLVMValueRef -get_tcs_out_patch_stride(struct si_shader_context *ctx) -{ - return unpack_param(ctx, ctx->param_tcs_out_lds_layout, 0, 13); -} - static unsigned get_tcs_out_vertex_dw_stride_constant(struct si_shader_context *ctx) { assert(ctx->type == PIPE_SHADER_TESS_CTRL); @@ -343,6 +337,20 @@ static LLVMValueRef get_tcs_out_vertex_dw_stride(struct si_shader_context *ctx) return LLVMConstInt(ctx->i32, stride, 0); } +static LLVMValueRef get_tcs_out_patch_stride(struct si_shader_context *ctx) +{ + if (ctx->shader->key.mono.u.ff_tcs_inputs_to_copy) + return unpack_param(ctx, ctx->param_tcs_out_lds_layout, 0, 13); + + const struct tgsi_shader_info *info = &ctx->shader->selector->info; + unsigned tcs_out_vertices = info->properties[TGSI_PROPERTY_TCS_VERTICES_OUT]; + unsigned vertex_dw_stride = get_tcs_out_vertex_dw_stride_constant(ctx); + unsigned num_patch_outputs = util_last_bit64(ctx->shader->selector->patch_outputs_written); + unsigned patch_dw_stride = tcs_out_vertices * vertex_dw_stride + + num_patch_outputs * 4; + return LLVMConstInt(ctx->i32, patch_dw_stride, 0); +} + static LLVMValueRef get_tcs_out_patch0_offset(struct si_shader_context *ctx) { |