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

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  13 * Software.
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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    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