1 /**************************************************************************** 2 * Copyright (C) 2014-2015 Intel Corporation. All Rights Reserved. 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 * @file knobs.h 24 * 25 * @brief Static (Compile-Time) Knobs for Core. 26 * 27 ******************************************************************************/ 28 #pragma once 29 30 #include <stdint.h> 31 #include <gen_knobs.h> 32 33 #define KNOB_ARCH_AVX 0 34 #define KNOB_ARCH_AVX2 1 35 #define KNOB_ARCH_AVX512 2 36 37 /////////////////////////////////////////////////////////////////////////////// 38 // AVX512 Support 39 /////////////////////////////////////////////////////////////////////////////// 40 41 #define ENABLE_AVX512_SIMD16 1 42 #define USE_8x2_TILE_BACKEND 1 43 #define USE_SIMD16_FRONTEND 1 44 #define USE_SIMD16_SHADERS 1 // requires USE_SIMD16_FRONTEND 45 #define USE_SIMD16_VS 1 // requires USE_SIMD16_SHADERS 46 47 /////////////////////////////////////////////////////////////////////////////// 48 // Architecture validation 49 /////////////////////////////////////////////////////////////////////////////// 50 #if !defined(KNOB_ARCH) 51 #define KNOB_ARCH KNOB_ARCH_AVX 52 #endif 53 54 #if (KNOB_ARCH == KNOB_ARCH_AVX) 55 #define KNOB_ARCH_ISA AVX 56 #define KNOB_ARCH_STR "AVX" 57 #define KNOB_SIMD_WIDTH 8 58 #define KNOB_SIMD_BYTES 32 59 #elif (KNOB_ARCH == KNOB_ARCH_AVX2) 60 #define KNOB_ARCH_ISA AVX2 61 #define KNOB_ARCH_STR "AVX2" 62 #define KNOB_SIMD_WIDTH 8 63 #define KNOB_SIMD_BYTES 32 64 #elif (KNOB_ARCH == KNOB_ARCH_AVX512) 65 #define KNOB_ARCH_ISA AVX512F 66 #define KNOB_ARCH_STR "AVX512" 67 #define KNOB_SIMD_WIDTH 8 68 #define KNOB_SIMD_BYTES 32 69 #else 70 #error "Unknown architecture" 71 #endif 72 73 #if ENABLE_AVX512_SIMD16 74 75 #define KNOB_SIMD16_WIDTH 16 76 #define KNOB_SIMD16_BYTES 64 77 78 #if (KNOB_ARCH == KNOB_ARCH_AVX512) 79 #define ENABLE_AVX512_EMULATION 0 80 #else 81 #define ENABLE_AVX512_EMULATION 1 82 #endif 83 84 #endif 85 86 #define MAX_KNOB_ARCH_STR_LEN sizeof("AVX512_PLUS_PADDING") 87 88 /////////////////////////////////////////////////////////////////////////////// 89 // Configuration knobs 90 /////////////////////////////////////////////////////////////////////////////// 91 // Maximum supported number of active vertex buffer streams 92 #define KNOB_NUM_STREAMS 32 93 94 // Maximum supported active viewports and scissors 95 #define KNOB_NUM_VIEWPORTS_SCISSORS 16 96 97 // Guardband range used by the clipper 98 #define KNOB_GUARDBAND_WIDTH 32768.0f 99 #define KNOB_GUARDBAND_HEIGHT 32768.0f 100 101 /////////////////////////////// 102 // Macro tile configuration 103 /////////////////////////////// 104 105 // raster tile dimensions 106 #define KNOB_TILE_X_DIM 8 107 #define KNOB_TILE_X_DIM_SHIFT 3 108 #define KNOB_TILE_Y_DIM 8 109 #define KNOB_TILE_Y_DIM_SHIFT 3 110 111 // fixed macrotile pixel dimension for now, eventually will be 112 // dynamically set based on tile format and pixel size 113 #define KNOB_MACROTILE_X_DIM 32 114 #define KNOB_MACROTILE_Y_DIM 32 115 #define KNOB_MACROTILE_X_DIM_FIXED_SHIFT 13 116 #define KNOB_MACROTILE_Y_DIM_FIXED_SHIFT 13 117 #define KNOB_MACROTILE_X_DIM_FIXED (KNOB_MACROTILE_X_DIM << 8) 118 #define KNOB_MACROTILE_Y_DIM_FIXED (KNOB_MACROTILE_Y_DIM << 8) 119 #define KNOB_MACROTILE_X_DIM_IN_TILES (KNOB_MACROTILE_X_DIM >> KNOB_TILE_X_DIM_SHIFT) 120 #define KNOB_MACROTILE_Y_DIM_IN_TILES (KNOB_MACROTILE_Y_DIM >> KNOB_TILE_Y_DIM_SHIFT) 121 122 // total # of hot tiles available. This should be enough to 123 // fully render a 16kx16k 128bpp render target 124 #define KNOB_NUM_HOT_TILES_X 256 125 #define KNOB_NUM_HOT_TILES_Y 256 126 #define KNOB_COLOR_HOT_TILE_FORMAT R32G32B32A32_FLOAT 127 #define KNOB_DEPTH_HOT_TILE_FORMAT R32_FLOAT 128 #define KNOB_STENCIL_HOT_TILE_FORMAT R8_UINT 129 130 // Max scissor rectangle 131 #define KNOB_MAX_SCISSOR_X KNOB_NUM_HOT_TILES_X * KNOB_MACROTILE_X_DIM 132 #define KNOB_MAX_SCISSOR_Y KNOB_NUM_HOT_TILES_Y * KNOB_MACROTILE_Y_DIM 133 134 #if KNOB_SIMD_WIDTH==8 && KNOB_TILE_X_DIM < 4 135 #error "incompatible width/tile dimensions" 136 #endif 137 138 #if ENABLE_AVX512_SIMD16 139 #if KNOB_SIMD16_WIDTH == 16 && KNOB_TILE_X_DIM < 8 140 #error "incompatible width/tile dimensions" 141 #endif 142 #endif 143 144 #if KNOB_SIMD_WIDTH == 8 145 #define SIMD_TILE_X_DIM 4 146 #define SIMD_TILE_Y_DIM 2 147 #else 148 #error "Invalid simd width" 149 #endif 150 151 #if ENABLE_AVX512_SIMD16 152 #if KNOB_SIMD16_WIDTH == 16 153 #define SIMD16_TILE_X_DIM 8 154 #define SIMD16_TILE_Y_DIM 2 155 #else 156 #error "Invalid simd width" 157 #endif 158 #endif 159 160 /////////////////////////////////////////////////////////////////////////////// 161 // Optimization knobs 162 /////////////////////////////////////////////////////////////////////////////// 163 #define KNOB_USE_FAST_SRGB TRUE 164 165 // enables cut-aware primitive assembler 166 #define KNOB_ENABLE_CUT_AWARE_PA TRUE 167 168 // enables early rasterization (useful for small triangles) 169 #if !defined(KNOB_ENABLE_EARLY_RAST) 170 #define KNOB_ENABLE_EARLY_RAST 1 171 #endif 172 173 #if KNOB_ENABLE_EARLY_RAST 174 #define ER_SIMD_TILE_X_SHIFT 2 175 #define ER_SIMD_TILE_Y_SHIFT 2 176 #endif 177 178 /////////////////////////////////////////////////////////////////////////////// 179 // Debug knobs 180 /////////////////////////////////////////////////////////////////////////////// 181 //#define KNOB_ENABLE_RDTSC 182 183 // Set to 1 to use the dynamic KNOB_TOSS_XXXX knobs. 184 #if !defined(KNOB_ENABLE_TOSS_POINTS) 185 #define KNOB_ENABLE_TOSS_POINTS 0 186 #endif 187 188
