| 0,0 → 1,209 |
|---|
| /* |
| * Copyright © 2009 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| * |
| * Authors: |
| * Eric Anholt <eric@anholt.net> |
| * |
| */ |
| |
| #include "brw_context.h" |
| #include "brw_state.h" |
| #include "brw_defines.h" |
| #include "intel_batchbuffer.h" |
| |
| static void |
| gen6_upload_gs_push_constants(struct brw_context *brw) |
| { |
| struct brw_stage_state *stage_state = &brw->gs.base; |
| |
| /* BRW_NEW_GEOMETRY_PROGRAM */ |
| const struct brw_geometry_program *gp = |
| (struct brw_geometry_program *) brw->geometry_program; |
| |
| if (gp) { |
| /* BRW_NEW_GS_PROG_DATA */ |
| 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); |
| } |
| |
| if (brw->gen >= 7) |
| gen7_upload_constant_state(brw, stage_state, gp, _3DSTATE_CONSTANT_GS); |
| } |
| |
| const struct brw_tracked_state gen6_gs_push_constants = { |
| .dirty = { |
| .mesa = _NEW_PROGRAM_CONSTANTS | |
| _NEW_TRANSFORM, |
| .brw = BRW_NEW_BATCH | |
| BRW_NEW_GEOMETRY_PROGRAM | |
| BRW_NEW_GS_PROG_DATA | |
| BRW_NEW_PUSH_CONSTANT_ALLOCATION, |
| }, |
| .emit = gen6_upload_gs_push_constants, |
| }; |
| |
| static void |
| upload_gs_state_for_tf(struct brw_context *brw) |
| { |
| BEGIN_BATCH(7); |
| OUT_BATCH(_3DSTATE_GS << 16 | (7 - 2)); |
| OUT_BATCH(brw->ff_gs.prog_offset); |
| OUT_BATCH(GEN6_GS_SPF_MODE | GEN6_GS_VECTOR_MASK_ENABLE); |
| OUT_BATCH(0); /* no scratch space */ |
| OUT_BATCH((2 << GEN6_GS_DISPATCH_START_GRF_SHIFT) | |
| (brw->ff_gs.prog_data->urb_read_length << GEN6_GS_URB_READ_LENGTH_SHIFT)); |
| OUT_BATCH(((brw->max_gs_threads - 1) << GEN6_GS_MAX_THREADS_SHIFT) | |
| GEN6_GS_STATISTICS_ENABLE | |
| GEN6_GS_SO_STATISTICS_ENABLE | |
| GEN6_GS_RENDERING_ENABLE); |
| OUT_BATCH(GEN6_GS_SVBI_PAYLOAD_ENABLE | |
| GEN6_GS_SVBI_POSTINCREMENT_ENABLE | |
| (brw->ff_gs.prog_data->svbi_postincrement_value << |
| GEN6_GS_SVBI_POSTINCREMENT_VALUE_SHIFT) | |
| GEN6_GS_ENABLE); |
| ADVANCE_BATCH(); |
| } |
| |
| static void |
| upload_gs_state(struct brw_context *brw) |
| { |
| /* BRW_NEW_GEOMETRY_PROGRAM */ |
| bool active = brw->geometry_program; |
| /* BRW_NEW_GS_PROG_DATA */ |
| const struct brw_vue_prog_data *prog_data = &brw->gs.prog_data->base; |
| const struct brw_stage_state *stage_state = &brw->gs.base; |
| |
| 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); |
| OUT_BATCH(0); |
| 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); |
| |
| /* GEN6_GS_SPF_MODE and GEN6_GS_VECTOR_MASK_ENABLE are enabled as it |
| * was previously done for gen6. |
| * |
| * TODO: test with both disabled to see if the HW is behaving |
| * as expected, like in gen7. |
| */ |
| OUT_BATCH(GEN6_GS_SPF_MODE | GEN6_GS_VECTOR_MASK_ENABLE | |
| ((ALIGN(stage_state->sampler_count, 4)/4) << |
| GEN6_GS_SAMPLER_COUNT_SHIFT) | |
| ((prog_data->base.binding_table.size_bytes / 4) << |
| GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT)); |
| |
| if (prog_data->base.total_scratch) { |
| OUT_RELOC(stage_state->scratch_bo, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, |
| ffs(prog_data->base.total_scratch) - 11); |
| } else { |
| OUT_BATCH(0); /* no scratch space */ |
| } |
| |
| OUT_BATCH((prog_data->urb_read_length << |
| GEN6_GS_URB_READ_LENGTH_SHIFT) | |
| (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT) | |
| (prog_data->base.dispatch_grf_start_reg << |
| GEN6_GS_DISPATCH_START_GRF_SHIFT)); |
| |
| OUT_BATCH(((brw->max_gs_threads - 1) << GEN6_GS_MAX_THREADS_SHIFT) | |
| GEN6_GS_STATISTICS_ENABLE | |
| GEN6_GS_SO_STATISTICS_ENABLE | |
| GEN6_GS_RENDERING_ENABLE); |
| |
| if (brw->gs.prog_data->gen6_xfb_enabled) { |
| /* GEN6_GS_REORDER is equivalent to GEN7_GS_REORDER_TRAILING |
| * in gen7. SNB and IVB specs are the same regarding the reordering of |
| * TRISTRIP/TRISTRIP_REV vertices and triangle orientation, so we do |
| * the same thing in both generations. For more details, see the |
| * comment in gen7_gs_state.c |
| */ |
| OUT_BATCH(GEN6_GS_REORDER | |
| GEN6_GS_SVBI_PAYLOAD_ENABLE | |
| GEN6_GS_ENABLE); |
| } else { |
| 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 { |
| /* 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_PROGRAM_CONSTANTS | |
| _NEW_TRANSFORM, |
| .brw = BRW_NEW_BATCH | |
| BRW_NEW_CONTEXT | |
| BRW_NEW_FF_GS_PROG_DATA | |
| BRW_NEW_GEOMETRY_PROGRAM | |
| BRW_NEW_GS_PROG_DATA | |
| BRW_NEW_PUSH_CONSTANT_ALLOCATION, |
| }, |
| .emit = upload_gs_state, |
| }; |