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

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  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 // Architecture validation
  39 ///////////////////////////////////////////////////////////////////////////////
  40 #if !defined(KNOB_ARCH)
  41 #define KNOB_ARCH KNOB_ARCH_AVX
  42 #endif
  43
  44 #if (KNOB_ARCH == KNOB_ARCH_AVX)
  45 #define KNOB_ARCH_ISA AVX
  46 #define KNOB_ARCH_STR "AVX"
  47 #define KNOB_SIMD_WIDTH 8
  48 #elif (KNOB_ARCH == KNOB_ARCH_AVX2)
  49 #define KNOB_ARCH_ISA AVX2
  50 #define KNOB_ARCH_STR "AVX2"
  51 #define KNOB_SIMD_WIDTH 8
  52 #elif (KNOB_ARCH == KNOB_ARCH_AVX512)
  53 #define KNOB_ARCH_ISA AVX512F
  54 #define KNOB_ARCH_STR "AVX512"
  55 #define KNOB_SIMD_WIDTH 16
  56 #error "AVX512 not yet supported"
  57 #else
  58 #error "Unknown architecture"
  59 #endif
  60
  61 #define MAX_KNOB_ARCH_STR_LEN sizeof("AVX512_PLUS_PADDING")
  62
  63 ///////////////////////////////////////////////////////////////////////////////
  64 // Configuration knobs
  65 ///////////////////////////////////////////////////////////////////////////////
  66 #define KNOB_MAX_NUM_THREADS                256 // Supports up to dual-HSW-Xeon.
  67
  68 // Maximum supported number of active vertex buffer streams
  69 #define KNOB_NUM_STREAMS                    32
  70
  71 // Maximum supported number of attributes per vertex
  72 #define KNOB_NUM_ATTRIBUTES                 38
  73
  74 // Maximum supported active viewports and scissors
  75 #define KNOB_NUM_VIEWPORTS_SCISSORS         16
  76
  77 // Guardband range used by the clipper
  78 #define KNOB_GUARDBAND_WIDTH                32768.0f
  79 #define KNOB_GUARDBAND_HEIGHT               32768.0f
  80
  81 ///////////////////////////////
  82 // Macro tile configuration
  83 ///////////////////////////////
  84
  85 // raster tile dimensions
  86 #define KNOB_TILE_X_DIM                      8
  87 #define KNOB_TILE_X_DIM_SHIFT                3
  88 #define KNOB_TILE_Y_DIM                      8
  89 #define KNOB_TILE_Y_DIM_SHIFT                3
  90
  91 // fixed macrotile pixel dimension for now, eventually will be
  92 // dynamically set based on tile format and pixel size
  93 #define KNOB_MACROTILE_X_DIM                64
  94 #define KNOB_MACROTILE_Y_DIM                64
  95 #define KNOB_MACROTILE_X_DIM_FIXED          (KNOB_MACROTILE_X_DIM << 8)
  96 #define KNOB_MACROTILE_Y_DIM_FIXED          (KNOB_MACROTILE_Y_DIM << 8)
  97 #define KNOB_MACROTILE_X_DIM_FIXED_SHIFT    14
  98 #define KNOB_MACROTILE_Y_DIM_FIXED_SHIFT    14
  99 #define KNOB_MACROTILE_X_DIM_IN_TILES       (KNOB_MACROTILE_X_DIM >> KNOB_TILE_X_DIM_SHIFT)
 100 #define KNOB_MACROTILE_Y_DIM_IN_TILES       (KNOB_MACROTILE_Y_DIM >> KNOB_TILE_Y_DIM_SHIFT)
 101
 102 // total # of hot tiles available. This should be enough to
 103 // fully render a 16kx16k 128bpp render target
 104 #define KNOB_NUM_HOT_TILES_X                 256
 105 #define KNOB_NUM_HOT_TILES_Y                 256
 106 #define KNOB_COLOR_HOT_TILE_FORMAT           R32G32B32A32_FLOAT
 107 #define KNOB_DEPTH_HOT_TILE_FORMAT           R32_FLOAT
 108 #define KNOB_STENCIL_HOT_TILE_FORMAT         R8_UINT
 109
 110 // Max scissor rectangle
 111 #define KNOB_MAX_SCISSOR_X                  KNOB_NUM_HOT_TILES_X * KNOB_MACROTILE_X_DIM
 112 #define KNOB_MAX_SCISSOR_Y                  KNOB_NUM_HOT_TILES_Y * KNOB_MACROTILE_Y_DIM
 113
 114 #if KNOB_SIMD_WIDTH==8 && KNOB_TILE_X_DIM < 4
 115 #error "incompatible width/tile dimensions"
 116 #endif
 117
 118 #if KNOB_SIMD_WIDTH == 8
 119 #define SIMD_TILE_X_DIM 4
 120 #define SIMD_TILE_Y_DIM 2
 121 #else
 122 #error "Invalid simd width"
 123 #endif
 124
 125 ///////////////////////////////////////////////////////////////////////////////
 126 // Optimization knobs
 127 ///////////////////////////////////////////////////////////////////////////////
 128 #define KNOB_USE_FAST_SRGB                     TRUE
 129
 130 // enables cut-aware primitive assembler
 131 #define KNOB_ENABLE_CUT_AWARE_PA               TRUE
 132
 133 ///////////////////////////////////////////////////////////////////////////////
 134 // Debug knobs
 135 ///////////////////////////////////////////////////////////////////////////////
 136 //#define KNOB_ENABLE_RDTSC
 137
 138 // Set to 1 to use the dynamic KNOB_TOSS_XXXX knobs.
 139 #if !defined(KNOB_ENABLE_TOSS_POINTS)
 140 #define KNOB_ENABLE_TOSS_POINTS                 0
 141 #endif
 142