[ab0df696] | 1 | /* displayCpu.c |
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| 2 | * |
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| 3 | * This file contains code for displaying the Intel Cpu identification |
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| 4 | * that has been performed by checkCPUtypeSetCr0 function. |
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| 5 | * |
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| 6 | * COPYRIGHT (c) 1998 valette@crf.canon.fr |
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| 7 | * |
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| 8 | * The license and distribution terms for this file may be |
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| 9 | * found in the file LICENSE in this distribution or at |
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| 10 | * http://www.OARcorp.com/rtems/license.html. |
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| 11 | * |
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| 12 | * $Id$ |
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| 13 | */ |
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| 14 | |
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| 15 | /* |
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| 16 | * Tell us the machine setup.. |
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| 17 | */ |
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| 18 | #include <stdio.h> |
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| 19 | #include <libcpu/cpu.h> |
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| 20 | #include <string.h> |
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| 21 | #include <libcpu/cpuModel.h> |
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[eb562f2] | 22 | #include <bspIo.h> |
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[ab0df696] | 23 | |
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| 24 | unsigned char Cx86_step = 0; |
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| 25 | static const char *Cx86_type[] = { |
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| 26 | "unknown", "1.3", "1.4", "1.5", "1.6", "2.4", "2.5", "2.6", "2.7 or 3.7", "4.2" |
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| 27 | }; |
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| 28 | |
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| 29 | static const char * i486model(unsigned int nr) |
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| 30 | { |
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| 31 | static const char *model[] = { |
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| 32 | "0","DX","SX","DX/2","4","SX/2","6","DX/2-WB","DX/4","DX/4-WB", |
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| 33 | "10","11","12","13","Am5x86-WT","Am5x86-WB" |
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| 34 | }; |
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| 35 | if (nr < sizeof(model)/sizeof(char *)) |
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| 36 | return model[nr]; |
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| 37 | return NULL; |
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| 38 | } |
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| 39 | |
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| 40 | static const char * i586model(unsigned int nr) |
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| 41 | { |
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| 42 | static const char *model[] = { |
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| 43 | "0", "Pentium 60/66","Pentium 75+","OverDrive PODP5V83", |
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| 44 | "Pentium MMX", NULL, NULL, "Mobile Pentium 75+", |
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| 45 | "Mobile Pentium MMX" |
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| 46 | }; |
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| 47 | if (nr < sizeof(model)/sizeof(char *)) |
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| 48 | return model[nr]; |
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| 49 | return NULL; |
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| 50 | } |
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| 51 | |
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| 52 | static const char * Cx86model(void) |
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| 53 | { |
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| 54 | unsigned char nr6x86 = 0; |
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| 55 | static const char *model[] = { |
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| 56 | "unknown", "6x86", "6x86L", "6x86MX", "MII" |
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| 57 | }; |
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| 58 | switch (x86) { |
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| 59 | case 5: |
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| 60 | nr6x86 = ((x86_capability & (1 << 8)) ? 2 : 1); /* cx8 flag only on 6x86L */ |
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| 61 | break; |
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| 62 | case 6: |
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| 63 | nr6x86 = 3; |
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| 64 | break; |
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| 65 | default: |
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| 66 | nr6x86 = 0; |
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| 67 | } |
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| 68 | |
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| 69 | /* We must get the stepping number by reading DIR1 */ |
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[da8ae79b] | 70 | outport_byte(0x22,0xff); |
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| 71 | inport_byte(0x23, x86_mask); |
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[ab0df696] | 72 | switch (x86_mask) { |
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| 73 | case 0x03: |
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| 74 | Cx86_step = 1; /* 6x86MX Rev 1.3 */ |
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| 75 | break; |
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| 76 | case 0x04: |
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| 77 | Cx86_step = 2; /* 6x86MX Rev 1.4 */ |
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| 78 | break; |
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| 79 | case 0x05: |
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| 80 | Cx86_step = 3; /* 6x86MX Rev 1.5 */ |
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| 81 | break; |
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| 82 | case 0x06: |
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| 83 | Cx86_step = 4; /* 6x86MX Rev 1.6 */ |
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| 84 | break; |
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| 85 | case 0x14: |
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| 86 | Cx86_step = 5; /* 6x86 Rev 2.4 */ |
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| 87 | break; |
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| 88 | case 0x15: |
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| 89 | Cx86_step = 6; /* 6x86 Rev 2.5 */ |
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| 90 | break; |
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| 91 | case 0x16: |
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| 92 | Cx86_step = 7; /* 6x86 Rev 2.6 */ |
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| 93 | break; |
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| 94 | case 0x17: |
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| 95 | Cx86_step = 8; /* 6x86 Rev 2.7 or 3.7 */ |
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| 96 | break; |
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| 97 | case 0x22: |
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| 98 | Cx86_step = 9; /* 6x86L Rev 4.2 */ |
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| 99 | break; |
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| 100 | default: |
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| 101 | Cx86_step = 0; |
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| 102 | } |
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| 103 | return model[nr6x86]; |
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| 104 | } |
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| 105 | |
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| 106 | static const char * i686model(unsigned int nr) |
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| 107 | { |
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| 108 | static const char *model[] = { |
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| 109 | "PPro A-step", "Pentium Pro" |
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| 110 | }; |
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| 111 | if (nr < sizeof(model)/sizeof(char *)) |
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| 112 | return model[nr]; |
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| 113 | return NULL; |
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| 114 | } |
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| 115 | |
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| 116 | struct cpu_model_info { |
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| 117 | int x86; |
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| 118 | char *model_names[16]; |
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| 119 | }; |
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| 120 | |
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| 121 | static struct cpu_model_info amd_models[] = { |
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| 122 | { 4, |
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| 123 | { NULL, NULL, NULL, "DX/2", NULL, NULL, NULL, "DX/2-WB", "DX/4", |
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| 124 | "DX/4-WB", NULL, NULL, NULL, NULL, "Am5x86-WT", "Am5x86-WB" }}, |
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| 125 | { 5, |
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| 126 | { "K5/SSA5 (PR-75, PR-90, PR-100)", "K5 (PR-120, PR-133)", |
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| 127 | "K5 (PR-166)", "K5 (PR-200)", NULL, NULL, |
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| 128 | "K6 (166 - 266)", "K6 (166 - 300)", "K6-2 (200 - 450)", |
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| 129 | "K6-3D-Plus (200 - 450)", NULL, NULL, NULL, NULL, NULL, NULL }}, |
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| 130 | }; |
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| 131 | |
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| 132 | static const char * AMDmodel(void) |
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| 133 | { |
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| 134 | const char *p=NULL; |
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| 135 | int i; |
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| 136 | |
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| 137 | if (x86_model < 16) |
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| 138 | for (i=0; i<sizeof(amd_models)/sizeof(struct cpu_model_info); i++) |
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| 139 | if (amd_models[i].x86 == x86) { |
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| 140 | p = amd_models[i].model_names[(int)x86_model]; |
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| 141 | break; |
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| 142 | } |
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| 143 | return p; |
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| 144 | } |
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| 145 | |
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| 146 | static const char * getmodel(int x86, int model) |
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| 147 | { |
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| 148 | const char *p = NULL; |
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| 149 | static char nbuf[12]; |
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| 150 | if (strncmp(x86_vendor_id, "Cyrix", 5) == 0) |
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| 151 | p = Cx86model(); |
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| 152 | else if(strcmp(x86_vendor_id, "AuthenticAMD")==0) |
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| 153 | p = AMDmodel(); |
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| 154 | else { |
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| 155 | switch (x86) { |
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| 156 | case 4: |
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| 157 | p = i486model(model); |
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| 158 | break; |
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| 159 | case 5: |
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| 160 | p = i586model(model); |
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| 161 | break; |
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| 162 | case 6: |
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| 163 | p = i686model(model); |
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| 164 | break; |
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| 165 | } |
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| 166 | } |
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| 167 | if (p) |
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| 168 | return p; |
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| 169 | |
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| 170 | sprintf(nbuf, "%d", model); |
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| 171 | return nbuf; |
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| 172 | } |
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| 173 | |
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| 174 | void printCpuInfo() |
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| 175 | { |
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[bd8c8b2a] | 176 | int i; |
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[ab0df696] | 177 | static const char *x86_cap_flags[] = { |
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| 178 | "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", |
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| 179 | "cx8", "apic", "10", "11", "mtrr", "pge", "mca", "cmov", |
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| 180 | "16", "17", "18", "19", "20", "21", "22", "mmx", |
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| 181 | "24", "25", "26", "27", "28", "29", "30", "31" |
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| 182 | }; |
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| 183 | |
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| 184 | printk("cpu\t\t\t: %c86\n", x86+'0'); |
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| 185 | printk("model\t\t: %s\n", |
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| 186 | have_cpuid ? getmodel(x86, x86_model) : "unknown"); |
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| 187 | if (x86_vendor_id [0] == '\0') |
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| 188 | strcpy(x86_vendor_id, "unknown"); |
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| 189 | printk("vendor_id\t: %s\n", x86_vendor_id); |
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| 190 | |
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| 191 | if (x86_mask) |
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| 192 | if (strncmp(x86_vendor_id, "Cyrix", 5) != 0) { |
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| 193 | printk("stepping\t: %d\n", x86_mask); |
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| 194 | } |
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| 195 | else { /* we have a Cyrix */ |
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| 196 | printk("stepping\t: %s\n", Cx86_type[Cx86_step]); |
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| 197 | } |
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| 198 | else |
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| 199 | printk("stepping\t: unknown\n"); |
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| 200 | |
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| 201 | printk("fpu\t\t\t: %s\n", (hard_math ? "yes" : "no")); |
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| 202 | printk("cpuid\t\t: %s\n", (have_cpuid ? "yes" : "no")); |
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| 203 | printk("flags\t\t:"); |
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| 204 | for ( i = 0 ; i < 32 ; i++ ) { |
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| 205 | if ( x86_capability & (1 << i) ) { |
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| 206 | printk(" %s", x86_cap_flags[i]); |
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| 207 | } |
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| 208 | } |
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[564d2c3a] | 209 | printk("\n"); |
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[ab0df696] | 210 | } |
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