src/gallium/drivers/swr/rasterizer/core/knobs.h

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  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                 0
 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