Mercurial > projects > ldc
annotate druntime/src/compiler/dmd/util/cpuid.d @ 1458:e0b2d67cfe7c
Added druntime (this should be removed once it works).
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Tue, 02 Jun 2009 17:43:06 +0100 |
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1458
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1 /** |
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2 * Identify the characteristics of the host CPU, providing information |
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3 * about cache sizes and assembly optimisation hints. |
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4 * |
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5 * Some of this information was extremely difficult to track down. Some of the |
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6 * documents below were found only in cached versions stored by search engines! |
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7 * This code relies on information found in: |
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8 |
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9 * - "Intel(R) 64 and IA-32 Architectures Software Developers Manual, |
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10 * Volume 2A: Instruction Set Reference, A-M" (2007). |
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11 * - "AMD CPUID Specification", Advanced Micro Devices, Rev 2.28 (2008). |
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12 * - "AMD Processor Recognition Application Note For Processors Prior to AMD |
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13 * Family 0Fh Processors", Advanced Micro Devices, Rev 3.13 (2005). |
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14 * - "AMD Geode(TM) GX Processors Data Book", |
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15 * Advanced Micro Devices, Publication ID 31505E, (2005). |
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16 * - "AMD K6 Processor Code Optimisation", Advanced Micro Devices, Rev D (2000). |
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17 * - "Application note 106: Software Customization for the 6x86 Family", |
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18 * Cyrix Corporation, Rev 1.5 (1998) |
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19 * - http://ftp.intron.ac/pub/document/cpu/cpuid.htm |
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20 * - "Geode(TM) GX1 Processor Series Low Power Integrated X86 Solution", |
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21 * National Semiconductor, (2002) |
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22 * - "The VIA Isaiah Architecture", G. Glenn Henry, Centaur Technology, Inc (2008). |
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23 * - http://www.sandpile.org/ia32/cpuid.htm |
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24 * - http://grafi.ii.pw.edu.pl/gbm/x86/cpuid.html |
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25 * - "What every programmer should know about memory", |
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26 * Ulrich Depper, Red Hat, Inc., (2007). |
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27 * |
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28 * Bugs: Currently only works on x86 and Itanium CPUs. |
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29 * Many processors have bugs in their microcode for the CPUID instruction, |
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30 * so sometimes the cache information may be incorrect. |
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31 * |
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32 * Copyright: Copyright Don Clugston 2007 - 2009. |
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33 * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>. |
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34 * Authors: Don Clugston, Tomas Lindquist Olsen <tomas@famolsen.dk> |
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35 * |
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36 * Copyright Don Clugston 2007 - 2009. |
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37 * Distributed under the Boost Software License, Version 1.0. |
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38 * (See accompanying file LICENSE_1_0.txt or copy at |
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39 * http://www.boost.org/LICENSE_1_0.txt) |
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40 */ |
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41 module rt.util.cpuid; |
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42 |
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43 // If optimizing for a particular processor, it is generally better |
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44 // to identify based on features rather than model. NOTE: Normally |
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45 // it's only worthwhile to optimise for the latest Intel and AMD CPU, |
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46 // with a backup for other CPUs. |
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47 // Pentium -- preferPentium1() |
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48 // PMMX -- + mmx() |
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49 // PPro -- default |
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50 // PII -- + mmx() |
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51 // PIII -- + mmx() + sse() |
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52 // PentiumM -- + mmx() + sse() + sse2() |
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53 // Pentium4 -- preferPentium4() |
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54 // PentiumD -- + isX86_64() |
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55 // Core2 -- default + isX86_64() |
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56 // AMD K5 -- preferPentium1() |
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57 // AMD K6 -- + mmx() |
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58 // AMD K6-II -- + mmx() + 3dnow() |
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59 // AMD K7 -- preferAthlon() |
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60 // AMD K8 -- + sse2() |
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61 // AMD K10 -- + isX86_64() |
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62 // Cyrix 6x86 -- preferPentium1() |
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63 // 6x86MX -- + mmx() |
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64 |
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65 public: |
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66 |
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67 /// Cache size and behaviour |
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68 struct CacheInfo |
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69 { |
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70 /// Size of the cache, in kilobytes, per CPU. |
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71 /// For L1 unified (data + code) caches, this size is half the physical size. |
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72 /// (we don't halve it for larger sizes, since normally |
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73 /// data size is much greater than code size for critical loops). |
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74 uint size; |
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75 /// Number of ways of associativity, eg: |
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76 /// 1 = direct mapped |
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77 /// 2 = 2-way set associative |
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78 /// 3 = 3-way set associative |
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79 /// ubyte.max = fully associative |
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80 ubyte associativity; |
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81 /// Number of bytes read into the cache when a cache miss occurs. |
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82 uint lineSize; |
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83 } |
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84 |
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85 public: |
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86 /// Returns vendor string, for display purposes only. |
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87 /// Do NOT use this to determine features! |
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88 /// Note that some CPUs have programmable vendorIDs. |
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89 char[] vendor() {return vendorID;} |
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90 /// Returns processor string, for display purposes only |
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91 char[] processor() {return processorName;} |
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92 |
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93 /// The data caches. If there are fewer than 5 physical caches levels, |
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94 /// the remaining levels are set to uint.max (== entire memory space) |
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95 __gshared CacheInfo[5] datacache; |
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96 /// Does it have an x87 FPU on-chip? |
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97 bool x87onChip() {return (features&FPU_BIT)!=0;} |
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98 /// Is MMX supported? |
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99 bool mmx() {return (features&MMX_BIT)!=0;} |
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100 /// Is SSE supported? |
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101 bool sse() {return (features&SSE_BIT)!=0;} |
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102 /// Is SSE2 supported? |
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103 bool sse2() {return (features&SSE2_BIT)!=0;} |
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104 /// Is SSE3 supported? |
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105 bool sse3() {return (miscfeatures&SSE3_BIT)!=0;} |
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106 /// Is SSSE3 supported? |
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107 bool ssse3() {return (miscfeatures&SSSE3_BIT)!=0;} |
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108 /// Is SSE4.1 supported? |
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109 bool sse41() {return (miscfeatures&SSE41_BIT)!=0;} |
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110 /// Is SSE4.2 supported? |
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111 bool sse42() {return (miscfeatures&SSE42_BIT)!=0;} |
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112 /// Is SSE4a supported? |
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113 bool sse4a() {return (amdmiscfeatures&SSE4A_BIT)!=0;} |
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|
114 /// Is SSE5 supported? |
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115 bool sse5() {return (amdmiscfeatures&SSE5_BIT)!=0;} |
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116 /// Is AMD 3DNOW supported? |
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117 bool amd3dnow() {return (amdfeatures&AMD_3DNOW_BIT)!=0;} |
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118 /// Is AMD 3DNOW Ext supported? |
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119 bool amd3dnowExt() {return (amdfeatures&AMD_3DNOW_EXT_BIT)!=0;} |
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120 /// Are AMD extensions to MMX supported? |
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121 bool amdMmx() {return (amdfeatures&AMD_MMX_BIT)!=0;} |
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122 /// Is fxsave/fxrstor supported? |
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123 bool hasFxsr() {return (features&FXSR_BIT)!=0;} |
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124 /// Is cmov supported? |
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125 bool hasCmov() {return (features&CMOV_BIT)!=0;} |
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126 /// Is rdtsc supported? |
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127 bool hasRdtsc() {return (features&TIMESTAMP_BIT)!=0;} |
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128 /// Is cmpxchg8b supported? |
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129 bool hasCmpxchg8b() {return (features&CMPXCHG8B_BIT)!=0;} |
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130 /// Is cmpxchg8b supported? |
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131 bool hasCmpxchg16b() {return (miscfeatures&CMPXCHG16B_BIT)!=0;} |
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132 /// Is 3DNow prefetch supported? |
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133 bool has3dnowPrefetch() |
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134 {return (amdmiscfeatures&AMD_3DNOW_PREFETCH_BIT)!=0;} |
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135 /// Are LAHF and SAHF supported in 64-bit mode? |
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136 bool hasLahfSahf() {return (amdmiscfeatures&LAHFSAHF_BIT)!=0;} |
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137 /// Is POPCNT supported? |
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138 bool hasPopcnt() {return (miscfeatures&POPCNT_BIT)!=0;} |
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139 /// Is LZCNT supported? |
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140 bool hasLzcnt() {return (amdmiscfeatures&LZCNT_BIT)!=0;} |
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141 /// Is this an Intel64 or AMD 64? |
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142 bool isX86_64() {return (amdfeatures&AMD64_BIT)!=0;} |
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143 |
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144 /// Is this an IA64 (Itanium) processor? |
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145 bool isItanium() { return (features&IA64_BIT)!=0; } |
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146 |
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147 /// Is hyperthreading supported? |
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148 bool hyperThreading() { return maxThreads>maxCores; } |
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149 /// Returns number of threads per CPU |
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150 uint threadsPerCPU() {return maxThreads;} |
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151 /// Returns number of cores in CPU |
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152 uint coresPerCPU() {return maxCores;} |
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153 |
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154 /// Optimisation hints for assembly code. |
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155 /// For forward compatibility, the CPU is compared against different |
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156 /// microarchitectures. For 32-bit X86, comparisons are made against |
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157 /// the Intel PPro/PII/PIII/PM family. |
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158 /// |
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159 /// The major 32-bit x86 microarchitecture 'dynasties' have been: |
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160 /// (1) Intel P6 (PentiumPro, PII, PIII, PM, Core, Core2). |
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161 /// (2) AMD Athlon (K7, K8, K10). |
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162 /// (3) Intel NetBurst (Pentium 4, Pentium D). |
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163 /// (4) In-order Pentium (Pentium1, PMMX) |
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164 /// Other early CPUs (Nx586, AMD K5, K6, Centaur C3, Transmeta, |
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165 /// Cyrix, Rise) were mostly in-order. |
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166 /// Some new processors do not fit into the existing categories: |
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167 /// Intel Atom 230/330 (family 6, model 0x1C) is an in-order core. |
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168 /// Centaur Isiah = VIA Nano (family 6, model F) is an out-of-order core. |
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169 /// |
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170 /// Within each dynasty, the optimisation techniques are largely |
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171 /// identical (eg, use instruction pairing for group 4). Major |
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172 /// instruction set improvements occur within each group. |
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173 |
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174 /// Does this CPU perform better on AMD K7 code than PentiumPro..Core2 code? |
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175 bool preferAthlon() { return probablyAMD && family >=6; } |
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176 /// Does this CPU perform better on Pentium4 code than PentiumPro..Core2 code? |
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177 bool preferPentium4() { return probablyIntel && family == 0xF; } |
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178 /// Does this CPU perform better on Pentium I code than Pentium Pro code? |
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179 bool preferPentium1() { return family < 6 || (family==6 && model < 0xF && !probablyIntel); } |
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180 |
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181 __gshared: |
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182 public: |
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183 /// Processor type (vendor-dependent). |
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184 /// This should be visible ONLY for display purposes. |
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185 uint stepping, model, family; |
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186 uint numCacheLevels = 1; |
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187 private: |
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188 bool probablyIntel; // true = _probably_ an Intel processor, might be faking |
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189 bool probablyAMD; // true = _probably_ an AMD processor |
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190 char [12] vendorID; |
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191 char [] processorName; |
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192 char [48] processorNameBuffer; |
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193 uint features = 0; // mmx, sse, sse2, hyperthreading, etc |
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194 uint miscfeatures = 0; // sse3, etc. |
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195 uint amdfeatures = 0; // 3DNow!, mmxext, etc |
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196 uint amdmiscfeatures = 0; // sse4a, sse5, svm, etc |
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197 uint maxCores = 1; |
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198 uint maxThreads = 1; |
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199 // Note that this may indicate multi-core rather than hyperthreading. |
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200 bool hyperThreadingBit() { return (features&HTT_BIT)!=0;} |
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201 |
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202 // feature flags CPUID1_EDX |
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203 enum : uint |
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204 { |
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205 FPU_BIT = 1, |
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206 TIMESTAMP_BIT = 1<<4, // rdtsc |
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207 MDSR_BIT = 1<<5, // RDMSR/WRMSR |
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208 CMPXCHG8B_BIT = 1<<8, |
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209 CMOV_BIT = 1<<15, |
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210 MMX_BIT = 1<<23, |
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211 FXSR_BIT = 1<<24, |
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212 SSE_BIT = 1<<25, |
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213 SSE2_BIT = 1<<26, |
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214 HTT_BIT = 1<<28, |
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215 IA64_BIT = 1<<30 |
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|
216 } |
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217 // feature flags misc CPUID1_ECX |
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218 enum : uint |
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|
219 { |
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|
220 SSE3_BIT = 1, |
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221 PCLMULQDQ_BIT = 1<<1, // from AVX |
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222 MWAIT_BIT = 1<<3, |
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223 SSSE3_BIT = 1<<9, |
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224 FMA_BIT = 1<<12, // from AVX |
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Added druntime (this should be removed once it works).
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225 CMPXCHG16B_BIT = 1<<13, |
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Added druntime (this should be removed once it works).
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226 SSE41_BIT = 1<<19, |
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227 SSE42_BIT = 1<<20, |
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228 POPCNT_BIT = 1<<23, |
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229 AES_BIT = 1<<25, // AES instructions from AVX |
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230 OSXSAVE_BIT = 1<<27, // Used for AVX |
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231 AVX_BIT = 1<<28 |
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232 } |
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233 /+ |
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234 version(X86_64) { |
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235 bool hasAVXinHardware() { |
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236 // This only indicates hardware support, not OS support. |
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237 return (miscfeatures&AVX_BIT) && (miscfeatures&OSXSAVE_BIT); |
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238 } |
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239 // Is AVX supported (in both hardware & OS)? |
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240 bool Avx() { |
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241 if (!hasAVXinHardware()) return false; |
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242 // Check for OS support |
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243 uint xfeatures; |
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244 asm {mov ECX, 0; xgetbv; mov xfeatures, EAX; } |
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245 return (xfeatures&0x6)==6; |
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246 } |
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247 bool hasAvxFma() { |
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248 if (!AVX()) return false; |
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249 return (features&FMA_BIT)!=0; |
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250 } |
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251 } |
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252 +/ |
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253 // AMD feature flags CPUID80000001_EDX |
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254 enum : uint |
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255 { |
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|
256 AMD_MMX_BIT = 1<<22, |
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257 // FXR_OR_CYRIXMMX_BIT = 1<<24, // Cyrix/NS: 6x86MMX instructions. |
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258 FFXSR_BIT = 1<<25, |
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259 PAGE1GB_BIT = 1<<26, // support for 1GB pages |
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260 RDTSCP_BIT = 1<<27, |
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261 AMD64_BIT = 1<<29, |
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262 AMD_3DNOW_EXT_BIT = 1<<30, |
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263 AMD_3DNOW_BIT = 1<<31 |
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264 } |
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|
265 // AMD misc feature flags CPUID80000001_ECX |
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266 enum : uint |
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267 { |
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|
268 LAHFSAHF_BIT = 1, |
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269 LZCNT_BIT = 1<<5, |
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270 SSE4A_BIT = 1<<6, |
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271 AMD_3DNOW_PREFETCH_BIT = 1<<8, |
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272 SSE5_BIT = 1<<11 |
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273 } |
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274 |
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275 version(GNU){ |
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276 // GDC is a filthy liar. It can't actually do inline asm. |
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277 } else version(D_InlineAsm_X86) { |
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278 version = Really_D_InlineAsm_X86; |
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279 } |
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280 |
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281 version(Really_D_InlineAsm_X86) { |
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282 // Note that this code will also work for Itanium in x86 mode. |
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283 |
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284 shared uint max_cpuid, max_extended_cpuid; |
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285 |
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286 // CPUID2: "cache and tlb information" |
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287 void getcacheinfoCPUID2() |
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288 { |
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289 // We are only interested in the data caches |
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290 void decipherCpuid2(ubyte x) { |
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291 if (x==0) return; |
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292 // Values from http://www.sandpile.org/ia32/cpuid.htm. |
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293 // Includes Itanium and non-Intel CPUs. |
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294 // |
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|
295 immutable ubyte [47] ids = [ |
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296 0x0A, 0x0C, 0x2C, 0x60, 0x0E, 0x66, 0x67, 0x68, |
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297 // level 2 cache |
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298 0x41, 0x42, 0x43, 0x44, 0x45, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7F, |
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299 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x49, 0x4E, |
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300 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x48, 0x80, 0x81, |
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301 // level 3 cache |
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302 0x22, 0x23, 0x25, 0x29, 0x46, 0x47, 0x4A, 0x4B, 0x4C, 0x4D |
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|
303 ]; |
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|
304 immutable uint [47] sizes = [ |
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305 8, 16, 32, 16, 24, 8, 16, 32, |
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306 128, 256, 512, 1024, 2048, 1024, 128, 256, 512, 1024, 2048, 512, |
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307 256, 512, 1024, 2048, 512, 1024, 4096, 6*1024, |
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308 128, 192, 128, 256, 384, 512, 3072, 512, 128, |
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309 512, 1024, 2048, 4096, 4096, 8192, 6*1024, 8192, 12*1024, 16*1024 |
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|
310 ]; |
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|
311 // CPUBUG: Pentium M reports 0x2C but tests show it is only 4-way associative |
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|
312 immutable ubyte [47] ways = [ |
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313 2, 4, 8, 8, 6, 4, 4, 4, |
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314 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 2, |
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315 8, 8, 8, 8, 4, 8, 16, 24, |
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|
316 4, 6, 2, 4, 6, 4, 12, 8, 8, |
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317 4, 8, 8, 8, 4, 8, 12, 16, 12, 16 |
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|
318 ]; |
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|
319 enum { FIRSTDATA2 = 8, FIRSTDATA3 = 28+9 } |
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|
320 for (int i=0; i< ids.length; ++i) { |
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|
321 if (x==ids[i]) { |
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322 int level = i< FIRSTDATA2 ? 0: i<FIRSTDATA3 ? 1 : 2; |
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|
323 if (x==0x49 && family==0xF && model==0x6) level=2; |
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|
324 datacache[level].size=sizes[i]; |
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325 datacache[level].associativity=ways[i]; |
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|
326 if (level == 3 || x==0x2C || (x>=0x48 && x<=0x80) |
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|
327 || x==0x86 || x==0x87 |
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|
328 || (x>=0x66 && x<=0x68) || (x>=0x39 && x<=0x3E)){ |
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|
329 datacache[level].lineSize = 64; |
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|
330 } else datacache[level].lineSize = 32; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
331 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
332 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
333 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
334 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
335 uint[4] a; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
336 bool firstTime = true; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
337 // On a multi-core system, this could theoretically fail, but it's only used |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
338 // for old single-core CPUs. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
339 uint numinfos = 1; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
340 do { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
341 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
342 mov EAX, 2; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
343 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
344 mov a, EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
345 mov a+4, EBX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
346 mov a+8, ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
347 mov a+12, EDX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
348 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
349 if (firstTime) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
350 if (a[0]==0x0000_7001 && a[3]==0x80 && a[1]==0 && a[2]==0) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
351 // Cyrix MediaGX MMXEnhanced returns: EAX= 00007001, EDX=00000080. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
352 // These are NOT standard Intel values |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
353 // (TLB = 32 entry, 4 way associative, 4K pages) |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
354 // (L1 cache = 16K, 4way, linesize16) |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
355 datacache[0].size=8; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
356 datacache[0].associativity=4; |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
357 datacache[0].lineSize=16; |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
358 return; |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
359 } |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
360 // lsb of a is how many times to loop. |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
361 numinfos = a[0] & 0xFF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
362 // and otherwise it should be ignored |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
363 a[0] &= 0xFFFF_FF00; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
364 firstTime = false; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
365 } |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
366 for (int c=0; c<4;++c) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
367 // high bit set == no info. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
368 if (a[c] & 0x8000_0000) continue; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
369 decipherCpuid2(cast(ubyte)(a[c] & 0xFF)); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
370 decipherCpuid2(cast(ubyte)((a[c]>>8) & 0xFF)); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
371 decipherCpuid2(cast(ubyte)((a[c]>>16) & 0xFF)); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
372 decipherCpuid2(cast(ubyte)((a[c]>>24) & 0xFF)); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
373 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
374 } while (--numinfos); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
375 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
376 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
377 // CPUID4: "Deterministic cache parameters" leaf |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
378 void getcacheinfoCPUID4() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
379 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
380 int cachenum = 0; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
381 for(;;) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
382 uint a, b, number_of_sets; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
383 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
384 mov EAX, 4; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
385 mov ECX, cachenum; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
386 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
387 mov a, EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
388 mov b, EBX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
389 mov number_of_sets, ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
390 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
391 ++cachenum; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
392 if ((a&0x1F)==0) break; // no more caches |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
393 uint numthreads = ((a>>14) & 0xFFF) + 1; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
394 uint numcores = ((a>>26) & 0x3F) + 1; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
395 if (numcores > maxCores) maxCores = numcores; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
396 if ((a&0x1F)!=1 && ((a&0x1F)!=3)) continue; // we only want data & unified caches |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
397 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
398 ++number_of_sets; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
399 ubyte level = cast(ubyte)(((a>>5)&7)-1); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
400 if (level > datacache.length) continue; // ignore deep caches |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
401 datacache[level].associativity = a & 0x200 ? ubyte.max :cast(ubyte)((b>>22)+1); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
402 datacache[level].lineSize = (b & 0xFFF)+ 1; // system coherency line size |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
403 uint line_partitions = ((b >> 12)& 0x3FF) + 1; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
404 // Size = number of sets * associativity * cachelinesize * linepartitions |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
405 // and must convert to Kb, also dividing by the number of hyperthreads using this cache. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
406 ulong sz = (datacache[level].associativity< ubyte.max)? number_of_sets * |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
407 datacache[level].associativity : number_of_sets; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
408 datacache[level].size = cast(uint)( |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
409 (sz * datacache[level].lineSize * line_partitions ) / (numthreads *1024)); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
410 if (level == 0 && (a&0xF)==3) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
411 // Halve the size for unified L1 caches |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
412 datacache[level].size/=2; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
413 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
414 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
415 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
416 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
417 // CPUID8000_0005 & 6 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
418 void getAMDcacheinfo() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
419 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
420 uint c5, c6, d6; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
421 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
422 mov EAX, 0x8000_0005; // L1 cache |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
423 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
424 // EAX has L1_TLB_4M. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
425 // EBX has L1_TLB_4K |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
426 // EDX has L1 instruction cache |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
427 mov c5, ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
428 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
429 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
430 datacache[0].size = ( (c5>>24) & 0xFF); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
431 datacache[0].associativity = cast(ubyte)( (c5 >> 16) & 0xFF); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
432 datacache[0].lineSize = c5 & 0xFF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
433 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
434 if (max_extended_cpuid >= 0x8000_0006) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
435 // AMD K6-III or K6-2+ or later. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
436 ubyte numcores = 1; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
437 if (max_extended_cpuid >=0x8000_0008) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
438 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
439 mov EAX, 0x8000_0008; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
440 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
441 mov numcores, CL; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
442 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
443 ++numcores; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
444 if (numcores>maxCores) maxCores = numcores; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
445 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
446 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
447 mov EAX, 0x8000_0006; // L2/L3 cache |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
448 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
449 mov c6, ECX; // L2 cache info |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
450 mov d6, EDX; // L3 cache info |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
451 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
452 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
453 immutable ubyte [] assocmap = [ 0, 1, 2, 0, 4, 0, 8, 0, 16, 0, 32, 48, 64, 96, 128, 0xFF ]; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
454 datacache[1].size = (c6>>16) & 0xFFFF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
455 datacache[1].associativity = assocmap[(c6>>12)&0xF]; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
456 datacache[1].lineSize = c6 & 0xFF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
457 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
458 // The L3 cache value is TOTAL, not per core. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
459 datacache[2].size = ((d6>>18)*512)/numcores; // could be up to 2 * this, -1. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
460 datacache[2].associativity = assocmap[(d6>>12)&0xF]; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
461 datacache[2].lineSize = d6 & 0xFF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
462 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
463 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
464 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
465 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
466 void cpuidX86() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
467 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
468 char * venptr = vendorID.ptr; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
469 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
470 mov EAX, 0; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
471 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
472 mov max_cpuid, EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
473 mov EAX, venptr; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
474 mov [EAX], EBX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
475 mov [EAX + 4], EDX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
476 mov [EAX + 8], ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
477 mov EAX, 0x8000_0000; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
478 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
479 mov max_extended_cpuid, EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
480 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
481 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
482 probablyIntel = vendorID == "GenuineIntel"; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
483 probablyAMD = vendorID == "AuthenticAMD"; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
484 uint a, b, c, d; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
485 uint apic = 0; // brand index, apic id |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
486 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
487 mov EAX, 1; // model, stepping |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
488 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
489 mov a, EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
490 mov apic, EBX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
491 mov miscfeatures, ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
492 mov features, EDX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
493 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
494 amdfeatures = 0; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
495 amdmiscfeatures = 0; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
496 if (max_extended_cpuid >= 0x8000_0001) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
497 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
498 mov EAX, 0x8000_0001; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
499 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
500 mov amdmiscfeatures, ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
501 mov amdfeatures, EDX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
502 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
503 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
504 // Try to detect fraudulent vendorIDs |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
505 if (amd3dnow) probablyIntel = false; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
506 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
507 stepping = a & 0xF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
508 uint fbase = (a >> 8) & 0xF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
509 uint mbase = (a >> 4) & 0xF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
510 family = ((fbase == 0xF) || (fbase == 0)) ? fbase + (a >> 20) & 0xFF : fbase; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
511 model = ((fbase == 0xF) || (fbase == 6 && probablyIntel) ) ? |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
512 mbase + ((a >> 12) & 0xF0) : mbase; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
513 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
514 if (!probablyIntel && max_extended_cpuid >= 0x8000_0008) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
515 // determine max number of cores for AMD |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
516 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
517 mov EAX, 0x8000_0008; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
518 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
519 mov c, ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
520 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
521 uint apicsize = (c>>12) & 0xF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
522 if (apicsize == 0) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
523 // use legacy method |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
524 if (hyperThreadingBit) maxCores = c & 0xFF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
525 else maxCores = 1; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
526 } else { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
527 // maxcores = 2^ apicsize |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
528 maxCores = 1; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
529 while (apicsize) { maxCores<<=1; --apicsize; } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
530 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
531 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
532 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
533 if (max_extended_cpuid >= 0x8000_0004) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
534 char *procptr = processorNameBuffer.ptr; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
535 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
536 push ESI; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
537 mov ESI, procptr; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
538 mov EAX, 0x8000_0002; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
539 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
540 mov [ESI], EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
541 mov [ESI+4], EBX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
542 mov [ESI+8], ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
543 mov [ESI+12], EDX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
544 mov EAX, 0x8000_0003; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
545 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
546 mov [ESI+16], EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
547 mov [ESI+20], EBX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
548 mov [ESI+24], ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
549 mov [ESI+28], EDX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
550 mov EAX, 0x8000_0004; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
551 cpuid; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
552 mov [ESI+32], EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
553 mov [ESI+36], EBX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
554 mov [ESI+40], ECX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
555 mov [ESI+44], EDX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
556 pop ESI; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
557 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
558 // Intel P4 and PM pad at front with spaces. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
559 // Other CPUs pad at end with nulls. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
560 int start = 0, end = 0; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
561 while (processorNameBuffer[start] == ' ') { ++start; } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
562 while (processorNameBuffer[$-end-1] == 0) { ++end; } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
563 processorName = processorNameBuffer[start..$-end]; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
564 } else { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
565 processorName[] = "Unknown CPU"; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
566 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
567 // Determine cache sizes |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
568 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
569 // Intel docs specify that they return 0 for 0x8000_0005. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
570 // AMD docs do not specify the behaviour for 0004 and 0002. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
571 // Centaur/VIA and most other manufacturers use the AMD method, |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
572 // except Cyrix MediaGX MMX Enhanced uses their OWN form of CPUID2! |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
573 // NS Geode GX1 provides CyrixCPUID2 _and_ does the same wrong behaviour |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
574 // for CPUID80000005. But Geode GX uses the AMD method |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
575 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
576 // Deal with Geode GX1 - make it same as MediaGX MMX. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
577 if (max_extended_cpuid==0x8000_0005 && max_cpuid==2) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
578 max_extended_cpuid = 0x8000_0004; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
579 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
580 // Therefore, we try the AMD method unless it's an Intel chip. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
581 // If we still have no info, try the Intel methods. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
582 datacache[0].size = 0; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
583 if (max_cpuid<2 || !probablyIntel) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
584 if (max_extended_cpuid >= 0x8000_0005) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
585 getAMDcacheinfo(); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
586 } else if (probablyAMD) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
587 // According to AMDProcRecognitionAppNote, this means CPU |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
588 // K5 model 0, or Am5x86 (model 4), or Am4x86DX4 (model 4) |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
589 // Am5x86 has 16Kb 4-way unified data & code cache. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
590 datacache[0].size = 8; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
591 datacache[0].associativity = 4; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
592 datacache[0].lineSize = 32; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
593 } else { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
594 // Some obscure CPU. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
595 // Values for Cyrix 6x86MX (family 6, model 0) |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
596 datacache[0].size = 64; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
597 datacache[0].associativity = 4; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
598 datacache[0].lineSize = 32; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
599 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
600 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
601 if ((datacache[0].size == 0) && max_cpuid>=4) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
602 getcacheinfoCPUID4(); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
603 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
604 if ((datacache[0].size == 0) && max_cpuid>=2) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
605 getcacheinfoCPUID2(); |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
606 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
607 if (datacache[0].size == 0) { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
608 // Pentium, PMMX, late model 486, or an obscure CPU |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
609 if (mmx) { // Pentium MMX. Also has 8kB code cache. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
610 datacache[0].size = 16; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
611 datacache[0].associativity = 4; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
612 datacache[0].lineSize = 32; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
613 } else { // Pentium 1 (which also has 8kB code cache) |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
614 // or 486. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
615 // Cyrix 6x86: 16, 4way, 32 linesize |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
616 datacache[0].size = 8; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
617 datacache[0].associativity = 2; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
618 datacache[0].lineSize = 32; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
619 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
620 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
621 if (hyperThreadingBit) maxThreads = (apic>>>16) & 0xFF; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
622 else maxThreads = maxCores; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
623 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
624 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
625 // Return true if the cpuid instruction is supported. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
626 // BUG(WONTFIX): Returns false for Cyrix 6x86 and 6x86L. They will be treated as 486 machines. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
627 bool hasCPUID() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
628 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
629 uint flags; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
630 asm { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
631 pushfd; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
632 pop EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
633 mov flags, EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
634 xor EAX, 0x0020_0000; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
635 push EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
636 popfd; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
637 pushfd; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
638 pop EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
639 xor flags, EAX; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
640 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
641 return (flags & 0x0020_0000) !=0; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
642 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
643 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
644 } else { // inline asm X86 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
645 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
646 bool hasCPUID() { return false; } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
647 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
648 void cpuidX86() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
649 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
650 datacache[0].size = 8; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
651 datacache[0].associativity = 2; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
652 datacache[0].lineSize = 32; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
653 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
654 } |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
655 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
656 // TODO: Implement this function with OS support |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
657 void cpuidPPC() |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
658 { |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
659 enum :int { PPC601, PPC603, PPC603E, PPC604, |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
660 PPC604E, PPC620, PPCG3, PPCG4, PPCG5 }; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
661 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
662 // TODO: |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
663 // asm { mfpvr; } returns the CPU version but unfortunately it can |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
664 // only be used in kernel mode. So OS support is required. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
665 int cputype = PPC603; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
666 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
667 // 601 has a 8KB combined data & code L1 cache. |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
668 uint sizes[] = [4, 8, 16, 16, 32, 32, 32, 32, 64]; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
669 ubyte ways[] = [8, 2, 4, 4, 4, 8, 8, 8, 8]; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
670 uint L2size[]= [0, 0, 0, 0, 0, 0, 0, 256, 512]; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
671 uint L3size[]= [0, 0, 0, 0, 0, 0, 0, 2048, 0]; |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
672 |
e0b2d67cfe7c
Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
673 datacache[0].size = sizes[cputype]; |
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Added druntime (this should be removed once it works).
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parents:
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674 datacache[0].associativity = ways[cputype]; |
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Added druntime (this should be removed once it works).
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parents:
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675 datacache[0].lineSize = (cputype==PPCG5)? 128 : |
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Added druntime (this should be removed once it works).
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676 (cputype == PPC620 || cputype == PPCG3)? 64 : 32; |
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Added druntime (this should be removed once it works).
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677 datacache[1].size = L2size[cputype]; |
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Added druntime (this should be removed once it works).
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678 datacache[2].size = L3size[cputype]; |
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Added druntime (this should be removed once it works).
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parents:
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679 datacache[1].lineSize = datacache[0].lineSize; |
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Added druntime (this should be removed once it works).
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parents:
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680 datacache[2].lineSize = datacache[0].lineSize; |
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Added druntime (this should be removed once it works).
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parents:
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681 } |
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parents:
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682 |
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Added druntime (this should be removed once it works).
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683 // TODO: Implement this function with OS support |
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Added druntime (this should be removed once it works).
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684 void cpuidSparc() |
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Added druntime (this should be removed once it works).
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685 { |
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Added druntime (this should be removed once it works).
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686 // UltaSparcIIi : L1 = 16, 2way. L2 = 512, 4 way. |
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Added druntime (this should be removed once it works).
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687 // UltraSparcIII : L1 = 64, 4way. L2= 4096 or 8192. |
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Added druntime (this should be removed once it works).
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parents:
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688 // UltraSparcIIIi: L1 = 64, 4way. L2= 1024, 4 way |
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Added druntime (this should be removed once it works).
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parents:
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689 // UltraSparcIV : L1 = 64, 4way. L2 = 16*1024. |
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Added druntime (this should be removed once it works).
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parents:
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690 // UltraSparcIV+ : L1 = 64, 4way. L2 = 2048, L3=32*1024. |
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Added druntime (this should be removed once it works).
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parents:
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691 // Sparc64V : L1 = 128, 2way. L2 = 4096 4way. |
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Added druntime (this should be removed once it works).
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parents:
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692 } |
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Added druntime (this should be removed once it works).
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parents:
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693 |
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Added druntime (this should be removed once it works).
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694 |
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695 static this() |
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696 { |
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Added druntime (this should be removed once it works).
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697 if (hasCPUID()) { |
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Added druntime (this should be removed once it works).
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parents:
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698 cpuidX86(); |
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Added druntime (this should be removed once it works).
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699 } else { |
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Added druntime (this should be removed once it works).
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parents:
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700 // it's a 386 or 486, or a Cyrix 6x86. |
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Added druntime (this should be removed once it works).
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parents:
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701 //Probably still has an external cache. |
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Added druntime (this should be removed once it works).
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parents:
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702 } |
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Added druntime (this should be removed once it works).
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parents:
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703 if (datacache[0].size==0) { |
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Added druntime (this should be removed once it works).
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parents:
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704 // Guess same as Pentium 1. |
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Added druntime (this should be removed once it works).
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parents:
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705 datacache[0].size = 8; |
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Added druntime (this should be removed once it works).
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parents:
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706 datacache[0].associativity = 2; |
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Added druntime (this should be removed once it works).
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parents:
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707 datacache[0].lineSize = 32; |
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Added druntime (this should be removed once it works).
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parents:
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708 } |
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parents:
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709 numCacheLevels = 1; |
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Added druntime (this should be removed once it works).
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parents:
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710 // And now fill up all the unused levels with full memory space. |
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Added druntime (this should be removed once it works).
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parents:
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711 for (int i=1; i< datacache.length; ++i) { |
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Added druntime (this should be removed once it works).
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parents:
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changeset
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712 if (datacache[i].size==0) { |
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Added druntime (this should be removed once it works).
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parents:
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changeset
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713 // Set all remaining levels of cache equal to full address space. |
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Added druntime (this should be removed once it works).
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parents:
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changeset
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714 datacache[i].size = uint.max/1024; |
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Added druntime (this should be removed once it works).
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parents:
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changeset
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715 datacache[i].associativity = 1; |
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Added druntime (this should be removed once it works).
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parents:
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changeset
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716 datacache[i].lineSize = datacache[i-1].lineSize; |
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Added druntime (this should be removed once it works).
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parents:
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changeset
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717 } else numCacheLevels = i+1; |
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Added druntime (this should be removed once it works).
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parents:
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718 } |
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Added druntime (this should be removed once it works).
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parents:
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719 } |