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 0 42 #define USE_8x2_TILE_BACKEND 0 43 44 /////////////////////////////////////////////////////////////////////////////// 45 // Architecture validation 46 /////////////////////////////////////////////////////////////////////////////// 47 #if !defined(KNOB_ARCH) 48 #define KNOB_ARCH KNOB_ARCH_AVX 49 #endif 50 51 #if (KNOB_ARCH == KNOB_ARCH_AVX) 52 #define KNOB_ARCH_ISA AVX 53 #define KNOB_ARCH_STR "AVX" 54 #define KNOB_SIMD_WIDTH 8 55 #define KNOB_SIMD_BYTES 32 56 #elif (KNOB_ARCH == KNOB_ARCH_AVX2) 57 #define KNOB_ARCH_ISA AVX2 58 #define KNOB_ARCH_STR "AVX2" 59 #define KNOB_SIMD_WIDTH 8 60 #define KNOB_SIMD_BYTES 32 61 #elif (KNOB_ARCH == KNOB_ARCH_AVX512) 62 #if 0 63 // not ready to enable this globally, enabled on the side (below) 64 #define KNOB_ARCH_ISA AVX512F 65 #define KNOB_ARCH_STR "AVX512" 66 #define KNOB_SIMD_WIDTH 16 67 #define KNOB_SIMD_BYTES 64 68 #else 69 #define KNOB_ARCH_ISA AVX2 70 #define KNOB_ARCH_STR "AVX2" 71 #define KNOB_SIMD_WIDTH 8 72 #define KNOB_SIMD_BYTES 32 73 #endif 74 #else 75 #error "Unknown architecture" 76 #endif 77 78 #if ENABLE_AVX512_SIMD16 79 80 #define KNOB_SIMD16_WIDTH 16 81 #define KNOB_SIMD16_BYTES 64 82 83 #if (KNOB_ARCH == KNOB_ARCH_AVX512) 84 #define ENABLE_AVX512_EMULATION 0 85 #else 86 #define ENABLE_AVX512_EMULATION 1 87 #endif 88 89 #endif 90 91 #define MAX_KNOB_ARCH_STR_LEN sizeof("AVX512_PLUS_PADDING") 92 93 /////////////////////////////////////////////////////////////////////////////// 94 // Configuration knobs 95 /////////////////////////////////////////////////////////////////////////////// 96 // Maximum supported number of active vertex buffer streams 97 #define KNOB_NUM_STREAMS 32 98 99 // Maximum supported number of attributes per vertex 100 #define KNOB_NUM_ATTRIBUTES 39 101 102 // Maximum supported active viewports and scissors 103 #define KNOB_NUM_VIEWPORTS_SCISSORS 16 104 105 // Guardband range used by the clipper 106 #define KNOB_GUARDBAND_WIDTH 32768.0f 107 #define KNOB_GUARDBAND_HEIGHT 32768.0f 108 109 /////////////////////////////// 110 // Macro tile configuration 111 /////////////////////////////// 112 113 // raster tile dimensions 114 #define KNOB_TILE_X_DIM 8 115 #define KNOB_TILE_X_DIM_SHIFT 3 116 #define KNOB_TILE_Y_DIM 8 117 #define KNOB_TILE_Y_DIM_SHIFT 3 118 119 // fixed macrotile pixel dimension for now, eventually will be 120 // dynamically set based on tile format and pixel size 121 #define KNOB_MACROTILE_X_DIM 32 122 #define KNOB_MACROTILE_Y_DIM 32 123 #define KNOB_MACROTILE_X_DIM_FIXED_SHIFT 13 124 #define KNOB_MACROTILE_Y_DIM_FIXED_SHIFT 13 125 #define KNOB_MACROTILE_X_DIM_FIXED (KNOB_MACROTILE_X_DIM << 8) 126 #define KNOB_MACROTILE_Y_DIM_FIXED (KNOB_MACROTILE_Y_DIM << 8) 127 #define KNOB_MACROTILE_X_DIM_IN_TILES (KNOB_MACROTILE_X_DIM >> KNOB_TILE_X_DIM_SHIFT) 128 #define KNOB_MACROTILE_Y_DIM_IN_TILES (KNOB_MACROTILE_Y_DIM >> KNOB_TILE_Y_DIM_SHIFT) 129 130 // total # of hot tiles available. This should be enough to 131 // fully render a 16kx16k 128bpp render target 132 #define KNOB_NUM_HOT_TILES_X 256 133 #define KNOB_NUM_HOT_TILES_Y 256 134 #define KNOB_COLOR_HOT_TILE_FORMAT R32G32B32A32_FLOAT 135 #define KNOB_DEPTH_HOT_TILE_FORMAT R32_FLOAT 136 #define KNOB_STENCIL_HOT_TILE_FORMAT R8_UINT 137 138 // Max scissor rectangle 139 #define KNOB_MAX_SCISSOR_X KNOB_NUM_HOT_TILES_X * KNOB_MACROTILE_X_DIM 140 #define KNOB_MAX_SCISSOR_Y KNOB_NUM_HOT_TILES_Y * KNOB_MACROTILE_Y_DIM 141 142 #if KNOB_SIMD_WIDTH==8 && KNOB_TILE_X_DIM < 4 143 #error "incompatible width/tile dimensions" 144 #endif 145 146 #if ENABLE_AVX512_SIMD16 147 #if KNOB_SIMD16_WIDTH == 16 && KNOB_TILE_X_DIM < 8 148 #error "incompatible width/tile dimensions" 149 #endif 150 #endif 151 152 #if KNOB_SIMD_WIDTH == 8 153 #define SIMD_TILE_X_DIM 4 154 #define SIMD_TILE_Y_DIM 2 155 #else 156 #error "Invalid simd width" 157 #endif 158 159 #if ENABLE_AVX512_SIMD16 160 #if KNOB_SIMD16_WIDTH == 16 161 #define SIMD16_TILE_X_DIM 8 162 #define SIMD16_TILE_Y_DIM 2 163 #else 164 #error "Invalid simd width" 165 #endif 166 #endif 167 168 /////////////////////////////////////////////////////////////////////////////// 169 // Optimization knobs 170 /////////////////////////////////////////////////////////////////////////////// 171 #define KNOB_USE_FAST_SRGB TRUE 172 173 // enables cut-aware primitive assembler 174 #define KNOB_ENABLE_CUT_AWARE_PA TRUE 175 176 /////////////////////////////////////////////////////////////////////////////// 177 // Debug knobs 178 /////////////////////////////////////////////////////////////////////////////// 179 //#define KNOB_ENABLE_RDTSC 180 181 // Set to 1 to use the dynamic KNOB_TOSS_XXXX knobs. 182 #if !defined(KNOB_ENABLE_TOSS_POINTS) 183 #define KNOB_ENABLE_TOSS_POINTS 0 184 #endif 185 186
