diff options
| author | Marek Olšák <[email protected]> | 2017-09-05 19:02:13 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2017-09-07 13:00:07 +0200 |
| commit | 89bf8668c2864bd5573fb72dedcac270ebcd2c07 (patch) | |
| tree | a24326c8af9aaaf78b9b0e93ddc2b5c9bb47bcec | |
| parent | f974bb768b8a9def7effea561fad6972376fe35c (diff) | |
radeonsi/gfx9: don't read LS out vertex stride from an SGPR in monolithic HS
-44 bytes in a monolithic LS-HS binary.
Tested-by: Dieter Nützel <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader.c | 5 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state_shaders.c | 7 |
2 files changed, 11 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 362ee038e1c..96ba907a082 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -408,6 +408,11 @@ static LLVMValueRef get_tcs_in_vertex_dw_stride(struct si_shader_context *ctx) return LLVMConstInt(ctx->i32, stride * 4, 0); case PIPE_SHADER_TESS_CTRL: + if (ctx->screen->b.chip_class >= GFX9 && + ctx->shader->is_monolithic) { + stride = util_last_bit64(ctx->shader->key.part.tcs.ls->outputs_written); + return LLVMConstInt(ctx->i32, stride * 4, 0); + } return unpack_param(ctx, ctx->param_vs_state_bits, 24, 8); default: diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c index d8791a2a62e..9f76551cfbb 100644 --- a/src/gallium/drivers/radeonsi/si_state_shaders.c +++ b/src/gallium/drivers/radeonsi/si_state_shaders.c @@ -1291,7 +1291,12 @@ static inline void si_shader_selector_key(struct pipe_context *ctx, * - remove the fixup for unused input VGPRs */ key->part.tcs.ls_prolog.ls_vgpr_fix = sctx->ls_vgpr_fix; - key->opt.prefer_mono = sctx->ls_vgpr_fix; + + /* The LS output / HS input layout can be communicated + * directly instead of via user SGPRs for merged LS-HS. + * The LS VGPR fix prefers this too. + */ + key->opt.prefer_mono = 1; } key->part.tcs.epilog.prim_mode = |