diff options
| author | Marek Olšák <[email protected]> | 2017-01-25 02:47:15 +0100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2017-01-30 13:27:14 +0100 |
| commit | 5f99c490089cae28de7226946d726f158838f8b9 (patch) | |
| tree | cb3c0f28d5bef3344c60df10fddb5f8213236ced /src/gallium/drivers/radeonsi/si_pipe.h | |
| parent | c78177fc642e468f07e4c839b4aa67778b62d663 (diff) | |
radeonsi: precompute IA_MULTI_VGT_PARAM values into a table
The perf difference is very small: 0.99% -> 0.40% for the time spent
in si_get_ia_multi_vgt_param when si_draw_vbo is 20%. Pretty much nothing.
Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'src/gallium/drivers/radeonsi/si_pipe.h')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_pipe.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h index 18cd25c60c1..724d89e7475 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.h +++ b/src/gallium/drivers/radeonsi/si_pipe.h @@ -204,6 +204,28 @@ struct si_shader_ctx_state { struct si_shader *current; }; +#define SI_NUM_VGT_PARAM_KEY_BITS 12 +#define SI_NUM_VGT_PARAM_STATES (1 << SI_NUM_VGT_PARAM_KEY_BITS) + +/* The IA_MULTI_VGT_PARAM key used to index the table of precomputed values. + * Some fields are set by state-change calls, most are set by draw_vbo. + */ +union si_vgt_param_key { + struct { + unsigned prim:4; + unsigned uses_instancing:1; + unsigned multi_instances_smaller_than_primgroup:1; + unsigned primitive_restart:1; + unsigned count_from_stream_output:1; + unsigned line_stipple_enabled:1; + unsigned uses_tess:1; + unsigned tcs_tes_uses_prim_id:1; + unsigned uses_gs:1; + unsigned _pad:32 - SI_NUM_VGT_PARAM_KEY_BITS; + } u; + uint32_t index; +}; + struct si_context { struct r600_common_context b; struct blitter_context *blitter; @@ -355,6 +377,10 @@ struct si_context { /* Other state */ bool need_check_render_feedback; + + /* Precomputed IA_MULTI_VGT_PARAM */ + union si_vgt_param_key ia_multi_vgt_param_key; + unsigned ia_multi_vgt_param[SI_NUM_VGT_PARAM_STATES]; }; /* cik_sdma.c */ |