util/msrtool/msrtool.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef MSRTOOL_H
   4 #define MSRTOOL_H
   5
   6 #include <stdio.h>
   7 #include <stdint.h>
   8 #if (defined(__MACH__) && defined(__APPLE__))
   9 /* DirectHW is available here: https://www.coreboot.org/DirectHW */
  10 #define __DARWIN__
  11 #include <DirectHW/DirectHW.h>
  12 #endif
  13 #if defined(__FreeBSD__)
  14 #include <sys/ioctl.h>
  15 #include <sys/cpuctl.h>
  16 #endif
  17 #include <pci/pci.h>
  18
  19 #define HEXCHARS "0123456789abcdefABCDEF"
  20
  21 enum {
  22         MSRTYPE_RDONLY,
  23         MSRTYPE_RDWR,
  24         MSRTYPE_WRONLY,
  25         MSRTYPE_EOT
  26 } MsrTypes;
  27
  28 enum {
  29         PRESENT_RSVD,
  30         PRESENT_DEC,
  31         PRESENT_BIN,
  32         PRESENT_OCT,
  33         PRESENT_HEX,
  34         PRESENT_HEXDEC,
  35         PRESENT_STR,
  36 } PresentTypes;
  37
  38 struct msr {
  39         uint32_t hi;
  40         uint32_t lo;
  41 };
  42
  43 struct msrbitvalues {
  44         const struct msr value;
  45         const char *text;
  46 };
  47
  48 struct msrbits {
  49         const uint8_t start;
  50         const uint8_t size;
  51         const char *name;
  52         const char *desc;
  53         const uint8_t present;
  54         const struct msrbitvalues bitval[32];
  55 };
  56
  57 struct msrdef {
  58         const uint32_t addr;
  59         const uint8_t type;
  60         const struct msr resetval;
  61         const char *symbol;
  62         const char *desc;
  63         const struct msrbits bits[65];
  64 };
  65
  66 #define MSR1(lo) { 0, (lo) }
  67 #define MSR2(hi,lo) { (hi), (lo) }
  68
  69 #define BITVAL_EOT .text = NULL
  70 #define BITVAL_ISEOT(bv) (NULL == (bv).text)
  71
  72 #define BITS_EOT .size = 0
  73 #define BITS_ISEOT(b) (0 == (b).size)
  74
  75 #define MSR_EOT .type = MSRTYPE_EOT
  76 #define MSR_ISEOT(m) (MSRTYPE_EOT == (m).type)
  77
  78 #define NOBITS {{ BITVAL_EOT }}
  79 #define RESERVED "RSVD", "Reserved", PRESENT_HEXDEC, NOBITS
  80
  81 #define MAX_CORES 8
  82
  83 typedef enum {
  84         VENDOR_INTEL = 0x756e6547,
  85         VENDOR_AMD = 0x68747541,
  86         VENDOR_CENTAUR = 0x746e6543,
  87 } vendor_t;
  88
  89 struct cpuid_t {
  90         uint8_t family;
  91         uint8_t model;
  92         uint8_t stepping;
  93         uint8_t ext_family;
  94         uint8_t ext_model;
  95         vendor_t vendor;
  96 };
  97
  98 struct targetdef {
  99         const char *name;
 100         const char *prettyname;
 101         int (*probe)(const struct targetdef *target, const struct cpuid_t *id);
 102         const struct msrdef *msrs;
 103 };
 104
 105 #define TARGET_EOT .name = NULL
 106 #define TARGET_ISEOT(t) (NULL == (t).name)
 107
 108
 109 enum SysModes {
 110         SYS_RDONLY = 0,
 111         SYS_WRONLY,
 112         SYS_RDWR
 113 };
 114
 115 struct sysdef {
 116         const char *name;
 117         const char *prettyname;
 118         int (*probe)(const struct sysdef *system);
 119         int (*open)(uint8_t cpu, enum SysModes mode);
 120         int (*close)(uint8_t cpu);
 121         int (*rdmsr)(uint8_t cpu, uint32_t addr, struct msr *val);
 122 };
 123
 124 #define SYSTEM_EOT .name = NULL
 125 #define SYSTEM_ISEOT(s) (NULL == (s).name)
 126
 127 extern const struct sysdef *sys;
 128
 129 extern uint8_t targets_found;
 130 extern const struct targetdef **targets;
 131
 132 extern uint8_t reserved, verbose, quiet;
 133
 134 extern struct pci_access *pacc;
 135
 136 #define printf_quiet(x...) do { if (!quiet) fprintf(stderr,x); } while(0)
 137 #define printf_verbose(x...) do { if (verbose && !quiet) fprintf(stderr,x); } while(0)
 138
 139 #define SYSERROR(call, addr) do { \
 140         const struct msrdef *m = findmsrdef(addr); \
 141         if (m) \
 142                 fprintf(stderr, "%s: " #call "(0x%08x) %s: %s\n", __func__, addr, m->symbol, strerror(errno)); \
 143         else \
 144                 fprintf(stderr, "%s: " #call "(0x%08x): %s\n", __func__, addr, strerror(errno)); \
 145 } while (0);
 146
 147 /* sys.c */
 148 struct cpuid_t *cpuid(void);
 149 struct pci_dev *pci_dev_find(uint16_t vendor, uint16_t device);
 150
 151 /* msrutils.c */
 152 void hexprint(FILE *f, const struct msr val, const uint8_t bits);
 153 void strprint(FILE *f, const struct msr val, const uint8_t bits);
 154 int msr_eq(const struct msr a, const struct msr b);
 155 struct msr msr_shl(const struct msr a, const uint8_t bits);
 156 struct msr msr_shr(const struct msr a, const uint8_t bits);
 157 void msr_and(struct msr *a, const struct msr b);
 158 const struct msrdef *findmsrdef(const uint32_t addr);
 159 uint32_t msraddrbyname(const char *name);
 160 void dumpmsrdefs(const struct targetdef *t);
 161 int dumpmsrdefsvals(FILE *f, const struct targetdef *t, const uint8_t cpu);
 162 uint8_t str2msr(char *str, struct msr *msr, char **endptr);
 163 void decodemsr(const uint8_t cpu, const uint32_t addr, const struct msr val);
 164 uint8_t diff_msr(FILE *fout, const uint32_t addr, const struct msr a, const struct msr b);
 165
 166
 167
 168 /** system externs **/
 169
 170 /* linux.c */
 171 extern int linux_probe(const struct sysdef *system);
 172 extern int linux_open(uint8_t cpu, enum SysModes mode);
 173 extern int linux_close(uint8_t cpu);
 174 extern int linux_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val);
 175
 176 /* darwin.c */
 177 extern int darwin_probe(const struct sysdef *system);
 178 extern int darwin_open(uint8_t cpu, enum SysModes mode);
 179 extern int darwin_close(uint8_t cpu);
 180 extern int darwin_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val);
 181
 182 /* freebsd.c */
 183 extern int freebsd_probe(const struct sysdef *system);
 184 extern int freebsd_open(uint8_t cpu, enum SysModes mode);
 185 extern int freebsd_close(uint8_t cpu);
 186 extern int freebsd_rdmsr(uint8_t cpu, uint32_t addr, struct msr *val);
 187
 188 /** target externs **/
 189
 190 /* geodegx2.c */
 191 extern int geodegx2_probe(const struct targetdef *t, const struct cpuid_t *id);
 192 extern const struct msrdef geodegx2_msrs[];
 193
 194 /* geodelx.c */
 195 extern int geodelx_probe(const struct targetdef *t, const struct cpuid_t *id);
 196 extern const struct msrdef geodelx_msrs[];
 197
 198 /* cs5536.c */
 199 extern int cs5536_probe(const struct targetdef *t, const struct cpuid_t *id);
 200 extern const struct msrdef cs5536_msrs[];
 201
 202 /* k8.c */
 203 extern int k8_probe(const struct targetdef *t, const struct cpuid_t *id);
 204 extern const struct msrdef k8_msrs[];
 205
 206 /* via_c7.c */
 207 extern int via_c7_probe(const struct targetdef *t, const struct cpuid_t *id);
 208 extern const struct msrdef via_c7_msrs[];
 209
 210 /* intel_pentium3_early.c */
 211 extern int intel_pentium3_early_probe(const struct targetdef *t, const struct cpuid_t *id);
 212 extern const struct msrdef intel_pentium3_early_msrs[];
 213
 214 /* intel_pentium3.c */
 215 extern int intel_pentium3_probe(const struct targetdef *t, const struct cpuid_t *id);
 216 extern const struct msrdef intel_pentium3_msrs[];
 217
 218 /* intel_core1.c */
 219 extern int intel_core1_probe(const struct targetdef *t, const struct cpuid_t *id);
 220 extern const struct msrdef intel_core1_msrs[];
 221
 222 /* intel_core2_early.c */
 223 extern int intel_core2_early_probe(const struct targetdef *t, const struct cpuid_t *id);
 224 extern const struct msrdef intel_core2_early_msrs[];
 225
 226 /* intel_core2_later.c */
 227 extern int intel_core2_later_probe(const struct targetdef *t, const struct cpuid_t *id);
 228 extern const struct msrdef intel_core2_later_msrs[];
 229
 230 /* intel_pentium4_early.c */
 231 extern int intel_pentium4_early_probe(const struct targetdef *t, const struct cpuid_t *id);
 232 extern const struct msrdef intel_pentium4_early_msrs[];
 233
 234 /* intel_pentium4_later.c */
 235 extern int intel_pentium4_later_probe(const struct targetdef *t, const struct cpuid_t *id);
 236 extern const struct msrdef intel_pentium4_later_msrs[];
 237
 238 /* intel_pentium_d.c */
 239 extern int intel_pentium_d_probe(const struct targetdef *t, const struct cpuid_t *id);
 240 extern const struct msrdef intel_pentium_d_msrs[];
 241
 242 /* intel_nehalem.c */
 243 extern int intel_nehalem_probe(const struct targetdef *t, const struct cpuid_t *id);
 244 extern const struct msrdef intel_nehalem_msrs[];
 245
 246 /* intel_atom.c */
 247 extern int intel_atom_probe(const struct targetdef *t, const struct cpuid_t *id);
 248 extern const struct msrdef intel_atom_msrs[];
 249
 250 #endif /* MSRTOOL_H */