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

   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_SIMD16_FRONTEND 1
  43 #define USE_SIMD16_SHADERS 1 // requires USE_SIMD16_FRONTEND
  44 #define USE_SIMD16_VS 1      // requires USE_SIMD16_SHADERS
  45
  46 ///////////////////////////////////////////////////////////////////////////////
  47 // Architecture validation
  48 ///////////////////////////////////////////////////////////////////////////////
  49 #if !defined(KNOB_ARCH)
  50 #define KNOB_ARCH KNOB_ARCH_AVX
  51 #endif
  52
  53 #if (KNOB_ARCH == KNOB_ARCH_AVX)
  54 #define KNOB_ARCH_ISA AVX
  55 #define KNOB_ARCH_STR "AVX"
  56 #define KNOB_SIMD_WIDTH 8
  57 #define KNOB_SIMD_BYTES 32
  58 #elif (KNOB_ARCH == KNOB_ARCH_AVX2)
  59 #define KNOB_ARCH_ISA AVX2
  60 #define KNOB_ARCH_STR "AVX2"
  61 #define KNOB_SIMD_WIDTH 8
  62 #define KNOB_SIMD_BYTES 32
  63 #elif (KNOB_ARCH == KNOB_ARCH_AVX512)
  64 #define KNOB_ARCH_ISA AVX512F
  65 #define KNOB_ARCH_STR "AVX512"
  66 #define KNOB_SIMD_WIDTH 8
  67 #define KNOB_SIMD_BYTES 32
  68 #else
  69 #error "Unknown architecture"
  70 #endif
  71
  72 #if ENABLE_AVX512_SIMD16
  73
  74 #define KNOB_SIMD16_WIDTH 16
  75 #define KNOB_SIMD16_BYTES 64
  76
  77 #if (KNOB_ARCH == KNOB_ARCH_AVX512)
  78 #define ENABLE_AVX512_EMULATION 0
  79 #else
  80 #define ENABLE_AVX512_EMULATION 1
  81 #endif
  82
  83 #endif
  84
  85 #define MAX_KNOB_ARCH_STR_LEN sizeof("AVX512_PLUS_PADDING")
  86
  87 ///////////////////////////////////////////////////////////////////////////////
  88 // Configuration knobs
  89 ///////////////////////////////////////////////////////////////////////////////
  90 // Maximum supported number of active vertex buffer streams
  91 #define KNOB_NUM_STREAMS 32
  92
  93 // Maximum supported active viewports and scissors
  94 #define KNOB_NUM_VIEWPORTS_SCISSORS 16
  95
  96 // Guardband range used by the clipper
  97 #define KNOB_GUARDBAND_WIDTH 32768.0f
  98 #define KNOB_GUARDBAND_HEIGHT 32768.0f
  99
 100 ///////////////////////////////
 101 // Macro tile configuration
 102 ///////////////////////////////
 103
 104 // raster tile dimensions
 105 #define KNOB_TILE_X_DIM 8
 106 #define KNOB_TILE_X_DIM_SHIFT 3
 107 #define KNOB_TILE_Y_DIM 8
 108 #define KNOB_TILE_Y_DIM_SHIFT 3
 109
 110 // fixed macrotile pixel dimension for now, eventually will be
 111 // dynamically set based on tile format and pixel size
 112 #define KNOB_MACROTILE_X_DIM 32
 113 #define KNOB_MACROTILE_Y_DIM 32
 114 #define KNOB_MACROTILE_X_DIM_FIXED_SHIFT 13
 115 #define KNOB_MACROTILE_Y_DIM_FIXED_SHIFT 13
 116 #define KNOB_MACROTILE_X_DIM_FIXED (KNOB_MACROTILE_X_DIM << 8)
 117 #define KNOB_MACROTILE_Y_DIM_FIXED (KNOB_MACROTILE_Y_DIM << 8)
 118 #define KNOB_MACROTILE_X_DIM_IN_TILES (KNOB_MACROTILE_X_DIM >> KNOB_TILE_X_DIM_SHIFT)
 119 #define KNOB_MACROTILE_Y_DIM_IN_TILES (KNOB_MACROTILE_Y_DIM >> KNOB_TILE_Y_DIM_SHIFT)
 120
 121 // total # of hot tiles available. This should be enough to
 122 // fully render a 16kx16k 128bpp render target
 123 #define KNOB_NUM_HOT_TILES_X 256
 124 #define KNOB_NUM_HOT_TILES_Y 256
 125 #define KNOB_COLOR_HOT_TILE_FORMAT R32G32B32A32_FLOAT
 126 #define KNOB_DEPTH_HOT_TILE_FORMAT R32_FLOAT
 127 #define KNOB_STENCIL_HOT_TILE_FORMAT R8_UINT
 128
 129 // Max scissor rectangle
 130 #define KNOB_MAX_SCISSOR_X KNOB_NUM_HOT_TILES_X* KNOB_MACROTILE_X_DIM
 131 #define KNOB_MAX_SCISSOR_Y KNOB_NUM_HOT_TILES_Y* KNOB_MACROTILE_Y_DIM
 132
 133 #if KNOB_SIMD_WIDTH == 8 && KNOB_TILE_X_DIM < 4
 134 #error "incompatible width/tile dimensions"
 135 #endif
 136
 137 #if ENABLE_AVX512_SIMD16
 138 #if KNOB_SIMD16_WIDTH == 16 && KNOB_TILE_X_DIM < 8
 139 #error "incompatible width/tile dimensions"
 140 #endif
 141 #endif
 142
 143 #if KNOB_SIMD_WIDTH == 8
 144 #define SIMD_TILE_X_DIM 4
 145 #define SIMD_TILE_Y_DIM 2
 146 #else
 147 #error "Invalid simd width"
 148 #endif
 149
 150 #if ENABLE_AVX512_SIMD16
 151 #if KNOB_SIMD16_WIDTH == 16
 152 #define SIMD16_TILE_X_DIM 8
 153 #define SIMD16_TILE_Y_DIM 2
 154 #else
 155 #error "Invalid simd width"
 156 #endif
 157 #endif
 158
 159 ///////////////////////////////////////////////////////////////////////////////
 160 // Optimization knobs
 161 ///////////////////////////////////////////////////////////////////////////////
 162 #define KNOB_USE_FAST_SRGB TRUE
 163
 164 // enables cut-aware primitive assembler
 165 #define KNOB_ENABLE_CUT_AWARE_PA TRUE
 166
 167 // enables early rasterization (useful for small triangles)
 168 #if !defined(KNOB_ENABLE_EARLY_RAST)
 169 #define KNOB_ENABLE_EARLY_RAST 1
 170 #endif
 171
 172 #if KNOB_ENABLE_EARLY_RAST
 173 #define ER_SIMD_TILE_X_SHIFT 2
 174 #define ER_SIMD_TILE_Y_SHIFT 2
 175 #endif
 176
 177 ///////////////////////////////////////////////////////////////////////////////
 178 // Debug knobs
 179 ///////////////////////////////////////////////////////////////////////////////
 180 //#define KNOB_ENABLE_RDTSC
 181
 182 // Set to 1 to use the dynamic KNOB_TOSS_XXXX knobs.
 183 #if !defined(KNOB_ENABLE_TOSS_POINTS)
 184 #define KNOB_ENABLE_TOSS_POINTS 0
 185 #endif