From: Iago Toral Quiroga Date: Thu, 3 Jul 2014 14:33:32 +0000 (+0200) Subject: i965/gen6/gs: Setup constant push buffers for gen6 geometry shaders. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=96012dfe80121c5d6f5f9c87149aa4ed1da567cb;p=mesa.git i965/gen6/gs: Setup constant push buffers for gen6 geometry shaders. Reviewed-by: Jordan Justen Acked-by: Kenneth Graunke --- diff --git a/src/mesa/drivers/dri/i965/brw_state.h b/src/mesa/drivers/dri/i965/brw_state.h index bbaa85ce35d..2efe56e4c73 100644 --- a/src/mesa/drivers/dri/i965/brw_state.h +++ b/src/mesa/drivers/dri/i965/brw_state.h @@ -101,6 +101,7 @@ extern const struct brw_tracked_state gen6_clip_vp; extern const struct brw_tracked_state gen6_color_calc_state; extern const struct brw_tracked_state gen6_depth_stencil_state; extern const struct brw_tracked_state gen6_gs_state; +extern const struct brw_tracked_state gen6_gs_push_constants; extern const struct brw_tracked_state gen6_gs_binding_table; extern const struct brw_tracked_state gen6_multisample_state; extern const struct brw_tracked_state gen6_renderbuffer_surfaces; diff --git a/src/mesa/drivers/dri/i965/brw_state_upload.c b/src/mesa/drivers/dri/i965/brw_state_upload.c index 87cc0eaba23..59d5936a514 100644 --- a/src/mesa/drivers/dri/i965/brw_state_upload.c +++ b/src/mesa/drivers/dri/i965/brw_state_upload.c @@ -128,6 +128,7 @@ static const struct brw_tracked_state *gen6_atoms[] = &gen6_depth_stencil_state, /* must do before cc unit */ &gen6_vs_push_constants, /* Before vs_state */ + &gen6_gs_push_constants, /* Before gs_state */ &gen6_wm_push_constants, /* Before wm_state */ /* Surface state setup. Must come before the VS/WM unit. The binding diff --git a/src/mesa/drivers/dri/i965/gen6_gs_state.c b/src/mesa/drivers/dri/i965/gen6_gs_state.c index 0b718c9a87f..917a3faa478 100644 --- a/src/mesa/drivers/dri/i965/gen6_gs_state.c +++ b/src/mesa/drivers/dri/i965/gen6_gs_state.c @@ -30,6 +30,34 @@ #include "brw_defines.h" #include "intel_batchbuffer.h" +static void +gen6_upload_gs_push_constants(struct brw_context *brw) +{ + /* BRW_NEW_GEOMETRY_PROGRAM */ + const struct brw_geometry_program *gp = + (struct brw_geometry_program *) brw->geometry_program; + + if (gp) { + /* CACHE_NEW_GS_PROG */ + struct brw_stage_state *stage_state = &brw->gs.base; + struct brw_stage_prog_data *prog_data = &brw->gs.prog_data->base.base; + + gen6_upload_push_constants(brw, &gp->program.Base, prog_data, + stage_state, AUB_TRACE_VS_CONSTANTS); + } +} + +const struct brw_tracked_state gen6_gs_push_constants = { + .dirty = { + .mesa = _NEW_TRANSFORM | _NEW_PROGRAM_CONSTANTS, + .brw = (BRW_NEW_BATCH | + BRW_NEW_GEOMETRY_PROGRAM | + BRW_NEW_PUSH_CONSTANT_ALLOCATION), + .cache = CACHE_NEW_GS_PROG, + }, + .emit = gen6_upload_gs_push_constants, +}; + static void upload_gs_state_for_tf(struct brw_context *brw) { @@ -61,8 +89,8 @@ upload_gs_state(struct brw_context *brw) const struct brw_vec4_prog_data *prog_data = &brw->gs.prog_data->base; const struct brw_stage_state *stage_state = &brw->gs.base; - if (active) { - /* FIXME: enable constant buffers */ + if (!active || stage_state->push_const_size == 0) { + /* Disable the push constant buffers. */ BEGIN_BATCH(5); OUT_BATCH(_3DSTATE_CONSTANT_GS << 16 | (5 - 2)); OUT_BATCH(0); @@ -70,7 +98,23 @@ upload_gs_state(struct brw_context *brw) OUT_BATCH(0); OUT_BATCH(0); ADVANCE_BATCH(); + } else { + BEGIN_BATCH(5); + OUT_BATCH(_3DSTATE_CONSTANT_GS << 16 | + GEN6_CONSTANT_BUFFER_0_ENABLE | + (5 - 2)); + /* Pointer to the GS constant buffer. Covered by the set of + * state flags from gen6_upload_vs_constants + */ + OUT_BATCH(stage_state->push_const_offset + + stage_state->push_const_size - 1); + OUT_BATCH(0); + OUT_BATCH(0); + OUT_BATCH(0); + ADVANCE_BATCH(); + } + if (active) { BEGIN_BATCH(7); OUT_BATCH(_3DSTATE_GS << 16 | (7 - 2)); OUT_BATCH(stage_state->prog_offset); @@ -126,45 +170,34 @@ upload_gs_state(struct brw_context *brw) OUT_BATCH(GEN6_GS_REORDER | GEN6_GS_ENABLE); } ADVANCE_BATCH(); + } else if (brw->ff_gs.prog_active) { + /* In gen6, transform feedback for the VS stage is done with an ad-hoc GS + * program. This function provides the needed 3DSTATE_GS for this. + */ + upload_gs_state_for_tf(brw); } else { - /* Disable all the constant buffers. */ - BEGIN_BATCH(5); - OUT_BATCH(_3DSTATE_CONSTANT_GS << 16 | (5 - 2)); - OUT_BATCH(0); - OUT_BATCH(0); - OUT_BATCH(0); - OUT_BATCH(0); + /* No GS function required */ + BEGIN_BATCH(7); + OUT_BATCH(_3DSTATE_GS << 16 | (7 - 2)); + OUT_BATCH(0); /* prog_bo */ + OUT_BATCH((0 << GEN6_GS_SAMPLER_COUNT_SHIFT) | + (0 << GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT)); + OUT_BATCH(0); /* scratch space base offset */ + OUT_BATCH((1 << GEN6_GS_DISPATCH_START_GRF_SHIFT) | + (0 << GEN6_GS_URB_READ_LENGTH_SHIFT) | + (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT)); + OUT_BATCH((0 << GEN6_GS_MAX_THREADS_SHIFT) | + GEN6_GS_STATISTICS_ENABLE | + GEN6_GS_RENDERING_ENABLE); + OUT_BATCH(0); ADVANCE_BATCH(); - - if (brw->ff_gs.prog_active) { - /* In gen6, transform feedback for the VS stage is done with an ad-hoc GS - * program. This function provides the needed 3DSTATE_GS for this. - */ - upload_gs_state_for_tf(brw); - } else { - /* No GS function required */ - BEGIN_BATCH(7); - OUT_BATCH(_3DSTATE_GS << 16 | (7 - 2)); - OUT_BATCH(0); /* prog_bo */ - OUT_BATCH((0 << GEN6_GS_SAMPLER_COUNT_SHIFT) | - (0 << GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT)); - OUT_BATCH(0); /* scratch space base offset */ - OUT_BATCH((1 << GEN6_GS_DISPATCH_START_GRF_SHIFT) | - (0 << GEN6_GS_URB_READ_LENGTH_SHIFT) | - (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT)); - OUT_BATCH((0 << GEN6_GS_MAX_THREADS_SHIFT) | - GEN6_GS_STATISTICS_ENABLE | - GEN6_GS_RENDERING_ENABLE); - OUT_BATCH(0); - ADVANCE_BATCH(); - } } brw->gs.enabled = active; } const struct brw_tracked_state gen6_gs_state = { .dirty = { - .mesa = _NEW_TRANSFORM, + .mesa = _NEW_TRANSFORM | _NEW_PROGRAM_CONSTANTS, .brw = BRW_NEW_CONTEXT | BRW_NEW_PUSH_CONSTANT_ALLOCATION, .cache = (CACHE_NEW_GS_PROG | CACHE_NEW_FF_GS_PROG) },