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_8x2_TILE_BACKEND    1
  43 #define USE_SIMD16_FRONTEND     0
  44
  45 ///////////////////////////////////////////////////////////////////////////////
  46 // Architecture validation
  47 ///////////////////////////////////////////////////////////////////////////////
  48 #if !defined(KNOB_ARCH)
  49 #define KNOB_ARCH KNOB_ARCH_AVX
  50 #endif
  51
  52 #if (KNOB_ARCH == KNOB_ARCH_AVX)
  53 #define KNOB_ARCH_ISA AVX
  54 #define KNOB_ARCH_STR "AVX"
  55 #define KNOB_SIMD_WIDTH 8
  56 #define KNOB_SIMD_BYTES 32
  57 #elif (KNOB_ARCH == KNOB_ARCH_AVX2)
  58 #define KNOB_ARCH_ISA AVX2
  59 #define KNOB_ARCH_STR "AVX2"
  60 #define KNOB_SIMD_WIDTH 8
  61 #define KNOB_SIMD_BYTES 32
  62 #elif (KNOB_ARCH == KNOB_ARCH_AVX512)
  63 #if 0
  64 // not ready to enable this globally, enabled on the side (below)
  65 #define KNOB_ARCH_ISA AVX512F
  66 #define KNOB_ARCH_STR "AVX512"
  67 #define KNOB_SIMD_WIDTH 16
  68 #define KNOB_SIMD_BYTES 64
  69 #else
  70 #define KNOB_ARCH_ISA AVX2
  71 #define KNOB_ARCH_STR "AVX2"
  72 #define KNOB_SIMD_WIDTH 8
  73 #define KNOB_SIMD_BYTES 32
  74 #endif
  75 #else
  76 #error "Unknown architecture"
  77 #endif
  78
  79 #if ENABLE_AVX512_SIMD16
  80
  81 #define KNOB_SIMD16_WIDTH 16
  82 #define KNOB_SIMD16_BYTES 64
  83
  84 #if (KNOB_ARCH == KNOB_ARCH_AVX512)
  85 #define ENABLE_AVX512_EMULATION 0
  86 #else
  87 #define ENABLE_AVX512_EMULATION 1
  88 #endif
  89
  90 #endif
  91
  92 #define MAX_KNOB_ARCH_STR_LEN sizeof("AVX512_PLUS_PADDING")
  93
  94 ///////////////////////////////////////////////////////////////////////////////
  95 // Configuration knobs
  96 ///////////////////////////////////////////////////////////////////////////////
  97 // Maximum supported number of active vertex buffer streams
  98 #define KNOB_NUM_STREAMS                    32
  99
 100 // Maximum supported number of attributes per vertex
 101 #define KNOB_NUM_ATTRIBUTES                 39
 102
 103 // Maximum supported active viewports and scissors
 104 #define KNOB_NUM_VIEWPORTS_SCISSORS         16
 105
 106 // Guardband range used by the clipper
 107 #define KNOB_GUARDBAND_WIDTH                32768.0f
 108 #define KNOB_GUARDBAND_HEIGHT               32768.0f
 109
 110 ///////////////////////////////
 111 // Macro tile configuration
 112 ///////////////////////////////
 113
 114 // raster tile dimensions
 115 #define KNOB_TILE_X_DIM                      8
 116 #define KNOB_TILE_X_DIM_SHIFT                3
 117 #define KNOB_TILE_Y_DIM                      8
 118 #define KNOB_TILE_Y_DIM_SHIFT                3
 119
 120 // fixed macrotile pixel dimension for now, eventually will be
 121 // dynamically set based on tile format and pixel size
 122 #define KNOB_MACROTILE_X_DIM                32
 123 #define KNOB_MACROTILE_Y_DIM                32
 124 #define KNOB_MACROTILE_X_DIM_FIXED_SHIFT    13
 125 #define KNOB_MACROTILE_Y_DIM_FIXED_SHIFT    13
 126 #define KNOB_MACROTILE_X_DIM_FIXED          (KNOB_MACROTILE_X_DIM << 8)
 127 #define KNOB_MACROTILE_Y_DIM_FIXED          (KNOB_MACROTILE_Y_DIM << 8)
 128 #define KNOB_MACROTILE_X_DIM_IN_TILES       (KNOB_MACROTILE_X_DIM >> KNOB_TILE_X_DIM_SHIFT)
 129 #define KNOB_MACROTILE_Y_DIM_IN_TILES       (KNOB_MACROTILE_Y_DIM >> KNOB_TILE_Y_DIM_SHIFT)
 130
 131 // total # of hot tiles available. This should be enough to
 132 // fully render a 16kx16k 128bpp render target
 133 #define KNOB_NUM_HOT_TILES_X                 256
 134 #define KNOB_NUM_HOT_TILES_Y                 256
 135 #define KNOB_COLOR_HOT_TILE_FORMAT           R32G32B32A32_FLOAT
 136 #define KNOB_DEPTH_HOT_TILE_FORMAT           R32_FLOAT
 137 #define KNOB_STENCIL_HOT_TILE_FORMAT         R8_UINT
 138
 139 // Max scissor rectangle
 140 #define KNOB_MAX_SCISSOR_X                  KNOB_NUM_HOT_TILES_X * KNOB_MACROTILE_X_DIM
 141 #define KNOB_MAX_SCISSOR_Y                  KNOB_NUM_HOT_TILES_Y * KNOB_MACROTILE_Y_DIM
 142
 143 #if KNOB_SIMD_WIDTH==8 && KNOB_TILE_X_DIM < 4
 144 #error "incompatible width/tile dimensions"
 145 #endif
 146
 147 #if ENABLE_AVX512_SIMD16
 148 #if KNOB_SIMD16_WIDTH == 16 && KNOB_TILE_X_DIM < 8
 149 #error "incompatible width/tile dimensions"
 150 #endif
 151 #endif
 152
 153 #if KNOB_SIMD_WIDTH == 8
 154 #define SIMD_TILE_X_DIM 4
 155 #define SIMD_TILE_Y_DIM 2
 156 #else
 157 #error "Invalid simd width"
 158 #endif
 159
 160 #if ENABLE_AVX512_SIMD16
 161 #if KNOB_SIMD16_WIDTH == 16
 162 #define SIMD16_TILE_X_DIM 8
 163 #define SIMD16_TILE_Y_DIM 2
 164 #else
 165 #error "Invalid simd width"
 166 #endif
 167 #endif
 168
 169 ///////////////////////////////////////////////////////////////////////////////
 170 // Optimization knobs
 171 ///////////////////////////////////////////////////////////////////////////////
 172 #define KNOB_USE_FAST_SRGB                     TRUE
 173
 174 // enables cut-aware primitive assembler
 175 #define KNOB_ENABLE_CUT_AWARE_PA               TRUE
 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
 186