1ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt/* 2ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * Copyright © 2009 Intel Corporation 3ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * 4ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * Permission is hereby granted, free of charge, to any person obtaining a 5ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * copy of this software and associated documentation files (the "Software"), 6ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * to deal in the Software without restriction, including without limitation 7ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * and/or sell copies of the Software, and to permit persons to whom the 9ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * Software is furnished to do so, subject to the following conditions: 10ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * 11ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * The above copyright notice and this permission notice (including the next 12ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * paragraph) shall be included in all copies or substantial portions of the 13ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * Software. 14ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * 15ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * IN THE SOFTWARE. 22ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * 23ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * Authors: 24ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * Eric Anholt <eric@anholt.net> 25ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt * 26ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt */ 27ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt 28ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt#include "brw_context.h" 29ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt#include "brw_state.h" 30ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt#include "brw_defines.h" 31ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt#include "brw_util.h" 32ec2b92f98c2e7f161521b447cc1d9a36bce3707cBrian Paul#include "program/prog_parameter.h" 33ec2b92f98c2e7f161521b447cc1d9a36bce3707cBrian Paul#include "program/prog_statevars.h" 34ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt#include "intel_batchbuffer.h" 35ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt 36ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholtstatic void 379015969e6e9ce38d183e77a633f1d55117e07b26Eric Anholtgen6_upload_vs_push_constants(struct brw_context *brw) 38ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt{ 39ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt struct intel_context *intel = &brw->intel; 40f9995b30756140724f41daf963fa06167912be7fKristian Høgsberg struct gl_context *ctx = &intel->ctx; 4132cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt /* _BRW_NEW_VERTEX_PROGRAM */ 428485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt const struct brw_vertex_program *vp = 438485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt brw_vertex_program_const(brw->vertex_program); 44b271445e3731a512425fa28f20579e8af48bbfa2Eric Anholt unsigned int nr_params = brw->vs.prog_data->nr_params / 4; 45d9cb683f81b5daefda2f8599b4ba0365cc6f009aPaul Berry bool uses_clip_distance = vp->program.UsesClipDistance; 46ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt 4732cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt if (brw->vertex_program->IsNVProgram) 4832cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt _mesa_load_tracked_matrices(ctx); 4932cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt 5032cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt /* Updates the ParamaterValues[i] pointers for all parameters of the 5132cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt * basic type of PROGRAM_STATE_VAR. 5232cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt */ 5332cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt /* XXX: Should this happen somewhere before to get our state flag set? */ 5432cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt _mesa_load_state_parameters(ctx, vp->program.Base.Parameters); 5532cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt 5632cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt /* CACHE_NEW_VS_PROG | _NEW_TRANSFORM */ 57b271445e3731a512425fa28f20579e8af48bbfa2Eric Anholt if (brw->vs.prog_data->nr_params == 0 && !ctx->Transform.ClipPlanesEnabled) { 5832cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt brw->vs.push_const_size = 0; 598485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt } else { 6032cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt int params_uploaded = 0; 61e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt float *param; 6232cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt int i; 63e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt 64a1226bcd20a582146f1848cc0af8145c53b0ecbcEric Anholt param = brw_state_batch(brw, AUB_TRACE_VS_CONSTANTS, 6532cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt (MAX_CLIP_PLANES + nr_params) * 6632cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt 4 * sizeof(float), 6732cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt 32, &brw->vs.push_const_offset); 68e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt 69a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt if (brw->vs.prog_data->uses_new_param_layout) { 70a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt for (i = 0; i < brw->vs.prog_data->nr_params; i++) { 7155b7fbb70ffc1f4def5c3ded63c3ef569e693731Eric Anholt *param = *brw->vs.prog_data->param[i]; 72a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt param++; 73a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt } 74a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt params_uploaded += brw->vs.prog_data->nr_params / 4; 75a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt } else { 76e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry /* This should be loaded like any other param, but it's ad-hoc 77e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry * until we redo the VS backend. 78e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry */ 797a4fee71aa74f0e73cf6141c08ba1d536f20cd17Paul Berry if (ctx->Transform.ClipPlanesEnabled != 0 && !uses_clip_distance) { 80d912669034eb7bf5c162358a7a574ec7a4c963c7Paul Berry gl_clip_plane *clip_planes = brw_select_clip_planes(ctx); 817a4fee71aa74f0e73cf6141c08ba1d536f20cd17Paul Berry int num_userclip_plane_consts 827a4fee71aa74f0e73cf6141c08ba1d536f20cd17Paul Berry = _mesa_logbase2(ctx->Transform.ClipPlanesEnabled) + 1; 837a4fee71aa74f0e73cf6141c08ba1d536f20cd17Paul Berry int num_floats = 4 * num_userclip_plane_consts; 847a4fee71aa74f0e73cf6141c08ba1d536f20cd17Paul Berry memcpy(param, clip_planes, num_floats * sizeof(float)); 857a4fee71aa74f0e73cf6141c08ba1d536f20cd17Paul Berry param += num_floats; 867a4fee71aa74f0e73cf6141c08ba1d536f20cd17Paul Berry params_uploaded += num_userclip_plane_consts; 87e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry } 88e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry 89e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry /* Align to a reg for convenience for brw_vs_emit.c */ 90e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry if (params_uploaded & 1) { 91e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry param += 4; 92e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry params_uploaded++; 93e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry } 94e7da40afe84349a640fe15e3af408a0dfe880e85Paul Berry 95a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt for (i = 0; i < vp->program.Base.Parameters->NumParameters; i++) { 96a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt if (brw->vs.constant_map[i] != -1) { 97a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt memcpy(param + brw->vs.constant_map[i] * 4, 98a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt vp->program.Base.Parameters->ParameterValues[i], 99a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt 4 * sizeof(float)); 100a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt params_uploaded++; 101a070d5f363e99b0f846d555e9ca3a74ec807fdc0Eric Anholt } 102b271445e3731a512425fa28f20579e8af48bbfa2Eric Anholt } 103e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt } 104e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt 105e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt if (0) { 106e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt printf("VS constant buffer:\n"); 107e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt for (i = 0; i < params_uploaded; i++) { 10832cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt float *buf = param + i * 4; 109e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt printf("%d: %f %f %f %f\n", 110e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt i, buf[0], buf[1], buf[2], buf[3]); 111e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt } 1128485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt } 113e30a3e7aa09c373c0a02df555d090693718f0fe8Eric Anholt 11432cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt brw->vs.push_const_size = (params_uploaded + 1) / 2; 11532cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt /* We can only push 32 registers of constants at a time. */ 11632cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt assert(brw->vs.push_const_size <= 32); 11732cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt } 11832cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt} 1198485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt 120f3e9ccb3bcd174a0b55cae6f9c56835145558e89Kenneth Graunkeconst struct brw_tracked_state gen6_vs_push_constants = { 12132cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt .dirty = { 12232cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt .mesa = _NEW_TRANSFORM | _NEW_PROGRAM_CONSTANTS, 12332cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt .brw = (BRW_NEW_BATCH | 12432cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt BRW_NEW_VERTEX_PROGRAM), 1257d4d6082403bef750375cbff5cbb709e1fd30715Eric Anholt .cache = CACHE_NEW_VS_PROG, 12632cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt }, 1279015969e6e9ce38d183e77a633f1d55117e07b26Eric Anholt .emit = gen6_upload_vs_push_constants, 12832cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt}; 12905e534e6c4395269b1ca3a9694a1f437363dd186Eric Anholt 13032cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholtstatic void 13132cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholtupload_vs_state(struct brw_context *brw) 13232cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt{ 13332cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt struct intel_context *intel = &brw->intel; 134f40c6b2a992f3ca796826a47743c0c80232d7ab2Paul Berry uint32_t floating_point_mode = 0; 13532cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt 1367b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace /* From the BSpec, Volume 2a, Part 3 "Vertex Shader", Section 1377b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace * 3DSTATE_VS, Dword 5.0 "VS Function Enable": 1387b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace * [DevSNB] A pipeline flush must be programmed prior to a 3DSTATE_VS 1397b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace * command that causes the VS Function Enable to toggle. Pipeline 1407b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace * flush can be executed by sending a PIPE_CONTROL command with CS 1417b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace * stall bit set and a post sync operation. 1427b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace */ 1437b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace intel_emit_post_sync_nonzero_flush(intel); 1447b36c68ba6899c7f30fd56b7ef07a78b027771acChad Versace 14532cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt if (brw->vs.push_const_size == 0) { 14632cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt /* Disable the push constant buffers. */ 14732cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt BEGIN_BATCH(5); 14832cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | (5 - 2)); 14932cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt OUT_BATCH(0); 15032cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt OUT_BATCH(0); 15132cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt OUT_BATCH(0); 15232cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt OUT_BATCH(0); 15332cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt ADVANCE_BATCH(); 15432cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt } else { 1558485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt BEGIN_BATCH(5); 156e31defc825ee94f1d1092e277954abad7097c552Kenneth Graunke OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | 1578485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt GEN6_CONSTANT_BUFFER_0_ENABLE | 1588485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt (5 - 2)); 159a82a43e8d99e1715dd11c9c091b5ab734079b6a6Eric Anholt /* Pointer to the VS constant buffer. Covered by the set of 1609015969e6e9ce38d183e77a633f1d55117e07b26Eric Anholt * state flags from gen6_upload_vs_constants 161a82a43e8d99e1715dd11c9c091b5ab734079b6a6Eric Anholt */ 162a82a43e8d99e1715dd11c9c091b5ab734079b6a6Eric Anholt OUT_BATCH(brw->vs.push_const_offset + 16332cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt brw->vs.push_const_size - 1); 1648485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt OUT_BATCH(0); 1658485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt OUT_BATCH(0); 1668485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt OUT_BATCH(0); 1678485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt ADVANCE_BATCH(); 1688485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt } 169d971375bc1872cb2d95a710e3d62f5b037fbe7f7Eric Anholt 170f40c6b2a992f3ca796826a47743c0c80232d7ab2Paul Berry /* Use ALT floating point mode for ARB vertex programs, because they 171f40c6b2a992f3ca796826a47743c0c80232d7ab2Paul Berry * require 0^0 == 1. 172f40c6b2a992f3ca796826a47743c0c80232d7ab2Paul Berry */ 173f40c6b2a992f3ca796826a47743c0c80232d7ab2Paul Berry if (intel->ctx.Shader.CurrentVertexProgram == NULL) 174f40c6b2a992f3ca796826a47743c0c80232d7ab2Paul Berry floating_point_mode = GEN6_VS_FLOATING_POINT_MODE_ALT; 175f40c6b2a992f3ca796826a47743c0c80232d7ab2Paul Berry 176078e7b62f69658e40aedea59cf6f005162a29f83Eric Anholt BEGIN_BATCH(6); 177e31defc825ee94f1d1092e277954abad7097c552Kenneth Graunke OUT_BATCH(_3DSTATE_VS << 16 | (6 - 2)); 178c173541d9769d41a85cc899bc49699a3587df4bfEric Anholt OUT_BATCH(brw->vs.prog_offset); 17951b1d412ec5d0699d182b895daacb3b78da328adKenneth Graunke OUT_BATCH(floating_point_mode | 18051b1d412ec5d0699d182b895daacb3b78da328adKenneth Graunke ((ALIGN(brw->sampler.count, 4)/4) << GEN6_VS_SAMPLER_COUNT_SHIFT)); 181314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt 182314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt if (brw->vs.prog_data->total_scratch) { 183314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt OUT_RELOC(brw->vs.scratch_bo, 184314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 185314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt ffs(brw->vs.prog_data->total_scratch) - 11); 186314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt } else { 187314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt OUT_BATCH(0); 188314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt } 189314c2574ff6e562a6cfc5fb84980f092e495a948Eric Anholt 190078e7b62f69658e40aedea59cf6f005162a29f83Eric Anholt OUT_BATCH((1 << GEN6_VS_DISPATCH_START_GRF_SHIFT) | 191078e7b62f69658e40aedea59cf6f005162a29f83Eric Anholt (brw->vs.prog_data->urb_read_length << GEN6_VS_URB_READ_LENGTH_SHIFT) | 192078e7b62f69658e40aedea59cf6f005162a29f83Eric Anholt (0 << GEN6_VS_URB_ENTRY_READ_OFFSET_SHIFT)); 1936c324777a685d28d0a81d23157e4863240552999Zou Nan hai 194db6dd6d88fdc4361193dd063e4f150f01a104faaKenneth Graunke OUT_BATCH(((brw->max_vs_threads - 1) << GEN6_VS_MAX_THREADS_SHIFT) | 195edc8a99d1dc9963f61c3ecb5fdf481efae359ce4Eric Anholt GEN6_VS_STATISTICS_ENABLE | 196edc8a99d1dc9963f61c3ecb5fdf481efae359ce4Eric Anholt GEN6_VS_ENABLE); 197078e7b62f69658e40aedea59cf6f005162a29f83Eric Anholt ADVANCE_BATCH(); 1983e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt 1993e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt /* Based on my reading of the simulator, the VS constants don't get 2003e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * pulled into the VS FF unit until an appropriate pipeline flush 2013e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * happens, and instead the 3DSTATE_CONSTANT_VS packet just adds 2023e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * references to them into a little FIFO. The flushes are common, 2033e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * but don't reliably happen between this and a 3DPRIMITIVE, causing 2043e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * the primitive to use the wrong constants. Then the FIFO 2053e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * containing the constant setup gets added to again on the next 2063e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * constants change, and eventually when a flush does happen the 2073e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * unit is overwhelmed by constant changes and dies. 2083e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * 2093e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * To avoid this, send a PIPE_CONTROL down the line that will 2103e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * update the unit immediately loading the constants. The flush 2113e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * type bits here were those set by the STATE_BASE_ADDRESS whose 2123e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * move in a82a43e8d99e1715dd11c9c091b5ab734079b6a6 triggered the 2133e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * bug reports that led to this workaround, and may be more than 2143e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt * what is strictly required to avoid the issue. 2153e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt */ 2163cc0a7be23ab603ed40d602595f673a44e079885Kenneth Graunke intel_emit_post_sync_nonzero_flush(intel); 2173cc0a7be23ab603ed40d602595f673a44e079885Kenneth Graunke 2183e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt BEGIN_BATCH(4); 21961d0b9f52c6be4a4a64c30ea3a2a93ef8260c67bKenneth Graunke OUT_BATCH(_3DSTATE_PIPE_CONTROL | (4 - 2)); 2203e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt OUT_BATCH(PIPE_CONTROL_DEPTH_STALL | 2213e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt PIPE_CONTROL_INSTRUCTION_FLUSH | 2223e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt PIPE_CONTROL_STATE_CACHE_INVALIDATE); 2233e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt OUT_BATCH(0); /* address */ 2243e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt OUT_BATCH(0); /* write data */ 2253e5d36267d8c9536490c902f785137a7fa0637fcEric Anholt ADVANCE_BATCH(); 226ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt} 227ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt 228ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholtconst struct brw_tracked_state gen6_vs_state = { 229ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt .dirty = { 2308485e100b81d5cf44cde7af0c7feb79a32bf3dd0Eric Anholt .mesa = _NEW_TRANSFORM | _NEW_PROGRAM_CONSTANTS, 23174d7ef0961b3aace03aea88944155272ac341b59Kenneth Graunke .brw = (BRW_NEW_CONTEXT | 23232cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt BRW_NEW_VERTEX_PROGRAM | 23332cc0c9d8de343f699e80e7e416ea0d7e3121a42Eric Anholt BRW_NEW_BATCH), 23451b1d412ec5d0699d182b895daacb3b78da328adKenneth Graunke .cache = CACHE_NEW_VS_PROG | CACHE_NEW_SAMPLER 235ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt }, 236ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt .emit = upload_vs_state, 237ba882d7827e5526e99c9d5c453d56c5e029c7476Eric Anholt}; 238