gen6_wm_state.c revision e31defc825ee94f1d1092e277954abad7097c552
1/* 2 * Copyright © 2009 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * Authors: 24 * Eric Anholt <eric@anholt.net> 25 * 26 */ 27 28#include "brw_context.h" 29#include "brw_state.h" 30#include "brw_defines.h" 31#include "brw_util.h" 32#include "brw_wm.h" 33#include "program/prog_parameter.h" 34#include "program/prog_statevars.h" 35#include "intel_batchbuffer.h" 36 37static void 38prepare_wm_constants(struct brw_context *brw) 39{ 40 struct intel_context *intel = &brw->intel; 41 struct gl_context *ctx = &intel->ctx; 42 const struct brw_fragment_program *fp = 43 brw_fragment_program_const(brw->fragment_program); 44 45 drm_intel_bo_unreference(brw->wm.push_const_bo); 46 brw->wm.push_const_bo = NULL; 47 48 /* Updates the ParamaterValues[i] pointers for all parameters of the 49 * basic type of PROGRAM_STATE_VAR. 50 */ 51 /* XXX: Should this happen somewhere before to get our state flag set? */ 52 _mesa_load_state_parameters(ctx, fp->program.Base.Parameters); 53 54 if (brw->wm.prog_data->nr_params != 0) { 55 float *constants; 56 unsigned int i; 57 58 brw->wm.push_const_bo = drm_intel_bo_alloc(intel->bufmgr, 59 "WM constant_bo", 60 brw->wm.prog_data->nr_params * 61 sizeof(float), 62 4096); 63 drm_intel_gem_bo_map_gtt(brw->wm.push_const_bo); 64 constants = brw->wm.push_const_bo->virtual; 65 for (i = 0; i < brw->wm.prog_data->nr_params; i++) { 66 constants[i] = convert_param(brw->wm.prog_data->param_convert[i], 67 *brw->wm.prog_data->param[i]); 68 } 69 70 if (0) { 71 printf("WM constants:\n"); 72 for (i = 0; i < brw->wm.prog_data->nr_params; i++) { 73 if ((i & 7) == 0) 74 printf("g%d: ", brw->wm.prog_data->first_curbe_grf + i / 8); 75 printf("%8f ", constants[i]); 76 if ((i & 7) == 7) 77 printf("\n"); 78 } 79 if ((i & 7) != 0) 80 printf("\n"); 81 printf("\n"); 82 } 83 84 drm_intel_gem_bo_unmap_gtt(brw->wm.push_const_bo); 85 } 86} 87 88const struct brw_tracked_state gen6_wm_constants = { 89 .dirty = { 90 .mesa = _NEW_PROGRAM_CONSTANTS, 91 .brw = BRW_NEW_FRAGMENT_PROGRAM, 92 .cache = 0, 93 }, 94 .prepare = prepare_wm_constants, 95}; 96 97static void 98upload_wm_state(struct brw_context *brw) 99{ 100 struct intel_context *intel = &brw->intel; 101 struct gl_context *ctx = &intel->ctx; 102 const struct brw_fragment_program *fp = 103 brw_fragment_program_const(brw->fragment_program); 104 uint32_t dw2, dw4, dw5, dw6; 105 106 /* CACHE_NEW_WM_PROG */ 107 if (brw->wm.prog_data->nr_params == 0) { 108 /* Disable the push constant buffers. */ 109 BEGIN_BATCH(5); 110 OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (5 - 2)); 111 OUT_BATCH(0); 112 OUT_BATCH(0); 113 OUT_BATCH(0); 114 OUT_BATCH(0); 115 ADVANCE_BATCH(); 116 } else { 117 BEGIN_BATCH(5); 118 OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | 119 GEN6_CONSTANT_BUFFER_0_ENABLE | 120 (5 - 2)); 121 OUT_RELOC(brw->wm.push_const_bo, 122 I915_GEM_DOMAIN_RENDER, 0, /* XXX: bad domain */ 123 ALIGN(brw->wm.prog_data->nr_params, 124 brw->wm.prog_data->dispatch_width) / 8 - 1); 125 OUT_BATCH(0); 126 OUT_BATCH(0); 127 OUT_BATCH(0); 128 ADVANCE_BATCH(); 129 } 130 131 dw2 = dw4 = dw5 = dw6 = 0; 132 dw4 |= GEN6_WM_STATISTICS_ENABLE; 133 dw5 |= GEN6_WM_LINE_AA_WIDTH_1_0; 134 dw5 |= GEN6_WM_LINE_END_CAP_AA_WIDTH_0_5; 135 136 /* OpenGL non-ieee floating point mode */ 137 dw2 |= GEN6_WM_FLOATING_POINT_MODE_ALT; 138 139 /* BRW_NEW_NR_WM_SURFACES */ 140 dw2 |= brw->wm.nr_surfaces << GEN6_WM_BINDING_TABLE_ENTRY_COUNT_SHIFT; 141 142 /* CACHE_NEW_SAMPLER */ 143 dw2 |= (ALIGN(brw->wm.sampler_count, 4) / 4) << GEN6_WM_SAMPLER_COUNT_SHIFT; 144 dw4 |= (brw->wm.prog_data->first_curbe_grf << 145 GEN6_WM_DISPATCH_START_GRF_SHIFT_0); 146 147 dw5 |= (40 - 1) << GEN6_WM_MAX_THREADS_SHIFT; 148 149 /* CACHE_NEW_WM_PROG */ 150 if (brw->wm.prog_data->dispatch_width == 8) 151 dw5 |= GEN6_WM_8_DISPATCH_ENABLE; 152 else 153 dw5 |= GEN6_WM_16_DISPATCH_ENABLE; 154 155 /* _NEW_LINE */ 156 if (ctx->Line.StippleFlag) 157 dw5 |= GEN6_WM_LINE_STIPPLE_ENABLE; 158 159 /* _NEW_POLYGONSTIPPLE */ 160 if (ctx->Polygon.StippleFlag) 161 dw5 |= GEN6_WM_POLYGON_STIPPLE_ENABLE; 162 163 /* BRW_NEW_FRAGMENT_PROGRAM */ 164 if (fp->program.Base.InputsRead & (1 << FRAG_ATTRIB_WPOS)) 165 dw5 |= GEN6_WM_USES_SOURCE_DEPTH | GEN6_WM_USES_SOURCE_W; 166 if (fp->program.Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) 167 dw5 |= GEN6_WM_COMPUTED_DEPTH; 168 169 /* _NEW_COLOR */ 170 if (fp->program.UsesKill || ctx->Color.AlphaEnabled) 171 dw5 |= GEN6_WM_KILL_ENABLE; 172 173 if (brw_color_buffer_write_enabled(brw) || 174 dw5 & (GEN6_WM_KILL_ENABLE | GEN6_WM_COMPUTED_DEPTH)) { 175 dw5 |= GEN6_WM_DISPATCH_ENABLE; 176 } 177 178 dw6 |= GEN6_WM_PERSPECTIVE_PIXEL_BARYCENTRIC; 179 180 dw6 |= brw_count_bits(brw->fragment_program->Base.InputsRead) << 181 GEN6_WM_NUM_SF_OUTPUTS_SHIFT; 182 183 BEGIN_BATCH(9); 184 OUT_BATCH(_3DSTATE_WM << 16 | (9 - 2)); 185 OUT_RELOC(brw->wm.prog_bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 0); 186 OUT_BATCH(dw2); 187 OUT_BATCH(0); /* scratch space base offset */ 188 OUT_BATCH(dw4); 189 OUT_BATCH(dw5); 190 OUT_BATCH(dw6); 191 OUT_BATCH(0); /* kernel 1 pointer */ 192 OUT_BATCH(0); /* kernel 2 pointer */ 193 ADVANCE_BATCH(); 194} 195 196const struct brw_tracked_state gen6_wm_state = { 197 .dirty = { 198 .mesa = (_NEW_LINE | _NEW_POLYGONSTIPPLE | _NEW_COLOR | _NEW_BUFFERS | 199 _NEW_PROGRAM_CONSTANTS | _NEW_POLYGON), 200 .brw = (BRW_NEW_CURBE_OFFSETS | 201 BRW_NEW_FRAGMENT_PROGRAM | 202 BRW_NEW_NR_WM_SURFACES | 203 BRW_NEW_URB_FENCE | 204 BRW_NEW_BATCH), 205 .cache = (CACHE_NEW_SAMPLER | 206 CACHE_NEW_WM_PROG) 207 }, 208 .emit = upload_wm_state, 209}; 210