diff options
| -rw-r--r-- | src/freedreno/ir3/ir3_shader.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/freedreno/ir3/ir3_shader.h b/src/freedreno/ir3/ir3_shader.h index 91c992eb8d8..ee4eae504c1 100644 --- a/src/freedreno/ir3/ir3_shader.h +++ b/src/freedreno/ir3/ir3_shader.h @@ -183,6 +183,39 @@ struct ir3_stream_output_info { struct ir3_stream_output output[IR3_MAX_SO_OUTPUTS]; }; + +/** + * Starting from a4xx, HW supports pre-dispatching texture sampling + * instructions prior to scheduling a shader stage, when the + * coordinate maps exactly to an output of the previous stage. + */ + +/** + * There is a limit in the number of pre-dispatches allowed for any + * given stage. + */ +#define IR3_MAX_SAMPLER_PREFETCH 4 + +/** + * This is the output stream value for 'cmd', as used by blob. It may + * encode the return type (in 3 bits) but it hasn't been verified yet. + */ +#define IR3_SAMPLER_PREFETCH_CMD 0x4 + +/** + * Stream output for texture sampling pre-dispatches. + */ +struct ir3_sampler_prefetch { + uint8_t src; + uint8_t samp_id; + uint8_t tex_id; + uint8_t dst; + uint8_t wrmask; + uint8_t half_precision; + uint8_t cmd; +}; + + /* Configuration key used to identify a shader variant.. different * shader variants can be used to implement features not supported * in hw (two sided color), binning-pass vertex shader, etc. @@ -520,6 +553,10 @@ struct ir3_shader_variant { /* replicated here to avoid passing extra ptrs everywhere: */ gl_shader_stage type; struct ir3_shader *shader; + + /* texture sampler pre-dispatches */ + uint32_t num_sampler_prefetch; + struct ir3_sampler_prefetch sampler_prefetch[IR3_MAX_SAMPLER_PREFETCH]; }; struct ir3_ubo_range { |