include/asm-x86_64/msr.h

   1 #ifndef X86_64_MSR_H
   2 #define X86_64_MSR_H 1
   3
   4 #ifndef __ASSEMBLY__
   5 /*
   6  * Access to machine-specific registers (available on 586 and better only)
   7  * Note: the rd* operations modify the parameters directly (without using
   8  * pointer indirection), this allows gcc to optimize better
   9  */
  10
  11 #define rdmsr(msr,val1,val2) \
  12        __asm__ __volatile__("rdmsr" \
  13                             : "=a" (val1), "=d" (val2) \
  14                             : "c" (msr))
  15
  16
  17 #define rdmsrl(msr,val) do { unsigned long a__,b__; \
  18        __asm__ __volatile__("rdmsr" \
  19                             : "=a" (a__), "=d" (b__) \
  20                             : "c" (msr)); \
  21        val = a__ | (b__<<32); \
  22 } while(0);
  23
  24 #define wrmsr(msr,val1,val2) \
  25      __asm__ __volatile__("wrmsr" \
  26                           : /* no outputs */ \
  27                           : "c" (msr), "a" (val1), "d" (val2))
  28
  29 #define wrmsrl(msr,val) wrmsr(msr,(__u32)((__u64)(val)),((__u64)(val))>>32)
  30
  31 /* wrmsrl with exception handling */
  32 #define checking_wrmsrl(msr,val) ({ int ret__;                                          \
  33         asm volatile("2: wrmsr ; xorl %0,%0\n"                                          \
  34                      "1:\n\t"                                                           \
  35                      ".section .fixup,\"ax\"\n\t"                                       \
  36                      "3:  movl %4,%0 ; jmp 1b\n\t"                                      \
  37                      ".previous\n\t"                                                    \
  38                      ".section __ex_table,\"a\"\n"                                      \
  39                      "   .align 8\n\t"                                                  \
  40                      "   .quad  2b,3b\n\t"                                              \
  41                      ".previous"                                                        \
  42                      : "=a" (ret__)                                                     \
  43                      : "c" (msr), "0" ((__u32)val), "d" ((val)>>32), "i" (-EFAULT));\
  44         ret__; })
  45
  46 #define rdtsc(low,high) \
  47      __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
  48
  49 #define rdtscl(low) \
  50      __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
  51
  52 #define rdtscll(val) do { \
  53      unsigned int __a,__d; \
  54      asm volatile("rdtsc" : "=a" (__a), "=d" (__d)); \
  55      (val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \
  56 } while(0)
  57
  58 #define rdpmc(counter,low,high) \
  59      __asm__ __volatile__("rdpmc" \
  60                           : "=a" (low), "=d" (high) \
  61                           : "c" (counter))
  62
  63 #define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
  64
  65 #define rdpmc(counter,low,high) \
  66      __asm__ __volatile__("rdpmc" \
  67                           : "=a" (low), "=d" (high) \
  68                           : "c" (counter))
  69
  70 extern inline void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx)
  71 {
  72         __asm__("cpuid"
  73                 : "=a" (*eax),
  74                   "=b" (*ebx),
  75                   "=c" (*ecx),
  76                   "=d" (*edx)
  77                 : "0" (op));
  78 }
  79
  80 /*
  81  * CPUID functions returning a single datum
  82  */
  83 extern inline unsigned int cpuid_eax(unsigned int op)
  84 {
  85         unsigned int eax;
  86
  87         __asm__("cpuid"
  88                 : "=a" (eax)
  89                 : "0" (op)
  90                 : "bx", "cx", "dx");
  91         return eax;
  92 }
  93 extern inline unsigned int cpuid_ebx(unsigned int op)
  94 {
  95         unsigned int eax, ebx;
  96
  97         __asm__("cpuid"
  98                 : "=a" (eax), "=b" (ebx)
  99                 : "0" (op)
 100                 : "cx", "dx" );
 101         return ebx;
 102 }
 103 extern inline unsigned int cpuid_ecx(unsigned int op)
 104 {
 105         unsigned int eax, ecx;
 106
 107         __asm__("cpuid"
 108                 : "=a" (eax), "=c" (ecx)
 109                 : "0" (op)
 110                 : "bx", "dx" );
 111         return ecx;
 112 }
 113 extern inline unsigned int cpuid_edx(unsigned int op)
 114 {
 115         unsigned int eax, edx;
 116
 117         __asm__("cpuid"
 118                 : "=a" (eax), "=d" (edx)
 119                 : "0" (op)
 120                 : "bx", "cx");
 121         return edx;
 122 }
 123
 124 #define MSR_IA32_UCODE_WRITE            0x79
 125 #define MSR_IA32_UCODE_REV              0x8b
 126
 127
 128 #endif
 129
 130 /* AMD/K8 specific MSRs */
 131 #define MSR_EFER 0xc0000080             /* extended feature register */
 132 #define MSR_STAR 0xc0000081             /* legacy mode SYSCALL target */
 133 #define MSR_LSTAR 0xc0000082            /* long mode SYSCALL target */
 134 #define MSR_CSTAR 0xc0000083            /* compatibility mode SYSCALL target */
 135 #define MSR_SYSCALL_MASK 0xc0000084     /* EFLAGS mask for syscall */
 136 #define MSR_FS_BASE 0xc0000100          /* 64bit GS base */
 137 #define MSR_GS_BASE 0xc0000101          /* 64bit FS base */
 138 #define MSR_KERNEL_GS_BASE  0xc0000102  /* SwapGS GS shadow (or USER_GS from kernel) */
 139 /* EFER bits: */
 140 #define _EFER_SCE 0  /* SYSCALL/SYSRET */
 141 #define _EFER_LME 8  /* Long mode enable */
 142 #define _EFER_LMA 10 /* Long mode active (read-only) */
 143 #define _EFER_NX 11  /* No execute enable */
 144
 145 #define EFER_SCE (1<<_EFER_SCE)
 146 #define EFER_LME (1<<_EFER_LME)
 147 #define EFER_LMA (1<<_EFER_LMA)
 148 #define EFER_NX (1<<_EFER_NX)
 149
 150 /* Intel MSRs. Some also available on other CPUs */
 151 #define MSR_IA32_PLATFORM_ID    0x17
 152
 153 #define MSR_IA32_PERFCTR0      0xc1
 154 #define MSR_IA32_PERFCTR1      0xc2
 155
 156 #define MSR_MTRRcap             0x0fe
 157 #define MSR_IA32_BBL_CR_CTL        0x119
 158
 159 #define MSR_IA32_SYSENTER_CS    0x174
 160 #define MSR_IA32_SYSENTER_ESP   0x175
 161 #define MSR_IA32_SYSENTER_EIP   0x176
 162
 163 #define MSR_IA32_MCG_CAP       0x179
 164 #define MSR_IA32_MCG_STATUS        0x17a
 165 #define MSR_IA32_MCG_CTL       0x17b
 166
 167 #define MSR_IA32_EVNTSEL0      0x186
 168 #define MSR_IA32_EVNTSEL1      0x187
 169
 170 #define MSR_IA32_DEBUGCTLMSR       0x1d9
 171 #define MSR_IA32_LASTBRANCHFROMIP  0x1db
 172 #define MSR_IA32_LASTBRANCHTOIP        0x1dc
 173 #define MSR_IA32_LASTINTFROMIP     0x1dd
 174 #define MSR_IA32_LASTINTTOIP       0x1de
 175
 176 #define MSR_MTRRfix64K_00000    0x250
 177 #define MSR_MTRRfix16K_80000    0x258
 178 #define MSR_MTRRfix16K_A0000    0x259
 179 #define MSR_MTRRfix4K_C0000     0x268
 180 #define MSR_MTRRfix4K_C8000     0x269
 181 #define MSR_MTRRfix4K_D0000     0x26a
 182 #define MSR_MTRRfix4K_D8000     0x26b
 183 #define MSR_MTRRfix4K_E0000     0x26c
 184 #define MSR_MTRRfix4K_E8000     0x26d
 185 #define MSR_MTRRfix4K_F0000     0x26e
 186 #define MSR_MTRRfix4K_F8000     0x26f
 187 #define MSR_MTRRdefType         0x2ff
 188
 189 #define MSR_IA32_MC0_CTL       0x400
 190 #define MSR_IA32_MC0_STATUS        0x401
 191 #define MSR_IA32_MC0_ADDR      0x402
 192 #define MSR_IA32_MC0_MISC      0x403
 193
 194 #define MSR_P6_PERFCTR0                 0xc1
 195 #define MSR_P6_PERFCTR1                 0xc2
 196 #define MSR_P6_EVNTSEL0                 0x186
 197 #define MSR_P6_EVNTSEL1                 0x187
 198
 199 /* K7/K8 MSRs. Not complete. See the architecture manual for a more complete list. */
 200 #define MSR_K7_EVNTSEL0            0xC0010000
 201 #define MSR_K7_PERFCTR0            0xC0010004
 202 #define MSR_K7_EVNTSEL1            0xC0010001
 203 #define MSR_K7_PERFCTR1            0xC0010005
 204 #define MSR_K7_EVNTSEL2            0xC0010002
 205 #define MSR_K7_PERFCTR2            0xC0010006
 206 #define MSR_K7_EVNTSEL3            0xC0010003
 207 #define MSR_K7_PERFCTR3            0xC0010007
 208 #define MSR_K8_TOP_MEM1            0xC001001A
 209 #define MSR_K8_TOP_MEM2            0xC001001D
 210 #define MSR_K8_SYSCFG              0xC0000010
 211
 212 /* K6 MSRs */
 213 #define MSR_K6_EFER                     0xC0000080
 214 #define MSR_K6_STAR                     0xC0000081
 215 #define MSR_K6_WHCR                     0xC0000082
 216 #define MSR_K6_UWCCR                    0xC0000085
 217 #define MSR_K6_PSOR                     0xC0000087
 218 #define MSR_K6_PFIR                     0xC0000088
 219
 220 /* Centaur-Hauls/IDT defined MSRs. */
 221 #define MSR_IDT_FCR1                    0x107
 222 #define MSR_IDT_FCR2                    0x108
 223 #define MSR_IDT_FCR3                    0x109
 224 #define MSR_IDT_FCR4                    0x10a
 225
 226 #define MSR_IDT_MCR0                    0x110
 227 #define MSR_IDT_MCR1                    0x111
 228 #define MSR_IDT_MCR2                    0x112
 229 #define MSR_IDT_MCR3                    0x113
 230 #define MSR_IDT_MCR4                    0x114
 231 #define MSR_IDT_MCR5                    0x115
 232 #define MSR_IDT_MCR6                    0x116
 233 #define MSR_IDT_MCR7                    0x117
 234 #define MSR_IDT_MCR_CTRL                0x120
 235
 236 /* VIA Cyrix defined MSRs*/
 237 #define MSR_VIA_FCR                     0x1107
 238 #define MSR_VIA_LONGHAUL                0x110a
 239 #define MSR_VIA_RNG                     0x110b
 240 #define MSR_VIA_BCR2                    0x1147
 241
 242 /* Intel defined MSRs. */
 243 #define MSR_IA32_P5_MC_ADDR             0
 244 #define MSR_IA32_P5_MC_TYPE             1
 245 #define MSR_IA32_PLATFORM_ID            0x17
 246 #define MSR_IA32_EBL_CR_POWERON         0x2a
 247
 248 #define MSR_IA32_APICBASE               0x1b
 249 #define MSR_IA32_APICBASE_BSP           (1<<8)
 250 #define MSR_IA32_APICBASE_ENABLE        (1<<11)
 251 #define MSR_IA32_APICBASE_BASE          (0xfffff<<12)
 252
 253 /* P4/Xeon+ specific */
 254 #define MSR_IA32_MCG_EAX                0x180
 255 #define MSR_IA32_MCG_EBX                0x181
 256 #define MSR_IA32_MCG_ECX                0x182
 257 #define MSR_IA32_MCG_EDX                0x183
 258 #define MSR_IA32_MCG_ESI                0x184
 259 #define MSR_IA32_MCG_EDI                0x185
 260 #define MSR_IA32_MCG_EBP                0x186
 261 #define MSR_IA32_MCG_ESP                0x187
 262 #define MSR_IA32_MCG_EFLAGS             0x188
 263 #define MSR_IA32_MCG_EIP                0x189
 264 #define MSR_IA32_MCG_RESERVED           0x18A
 265
 266 #define MSR_P6_EVNTSEL0                 0x186
 267 #define MSR_P6_EVNTSEL1                 0x187
 268
 269 #define MSR_IA32_PERF_STATUS            0x198
 270 #define MSR_IA32_PERF_CTL               0x199
 271
 272 #define MSR_IA32_THERM_CONTROL          0x19a
 273 #define MSR_IA32_THERM_INTERRUPT        0x19b
 274 #define MSR_IA32_THERM_STATUS           0x19c
 275 #define MSR_IA32_MISC_ENABLE            0x1a0
 276
 277 #define MSR_IA32_DEBUGCTLMSR            0x1d9
 278 #define MSR_IA32_LASTBRANCHFROMIP       0x1db
 279 #define MSR_IA32_LASTBRANCHTOIP         0x1dc
 280 #define MSR_IA32_LASTINTFROMIP          0x1dd
 281 #define MSR_IA32_LASTINTTOIP            0x1de
 282
 283 #define MSR_IA32_MC0_CTL                0x400
 284 #define MSR_IA32_MC0_STATUS             0x401
 285 #define MSR_IA32_MC0_ADDR               0x402
 286 #define MSR_IA32_MC0_MISC               0x403
 287
 288 /* Pentium IV performance counter MSRs */
 289 #define MSR_P4_BPU_PERFCTR0             0x300
 290 #define MSR_P4_BPU_PERFCTR1             0x301
 291 #define MSR_P4_BPU_PERFCTR2             0x302
 292 #define MSR_P4_BPU_PERFCTR3             0x303
 293 #define MSR_P4_MS_PERFCTR0              0x304
 294 #define MSR_P4_MS_PERFCTR1              0x305
 295 #define MSR_P4_MS_PERFCTR2              0x306
 296 #define MSR_P4_MS_PERFCTR3              0x307
 297 #define MSR_P4_FLAME_PERFCTR0           0x308
 298 #define MSR_P4_FLAME_PERFCTR1           0x309
 299 #define MSR_P4_FLAME_PERFCTR2           0x30a
 300 #define MSR_P4_FLAME_PERFCTR3           0x30b
 301 #define MSR_P4_IQ_PERFCTR0              0x30c
 302 #define MSR_P4_IQ_PERFCTR1              0x30d
 303 #define MSR_P4_IQ_PERFCTR2              0x30e
 304 #define MSR_P4_IQ_PERFCTR3              0x30f
 305 #define MSR_P4_IQ_PERFCTR4              0x310
 306 #define MSR_P4_IQ_PERFCTR5              0x311
 307 #define MSR_P4_BPU_CCCR0                0x360
 308 #define MSR_P4_BPU_CCCR1                0x361
 309 #define MSR_P4_BPU_CCCR2                0x362
 310 #define MSR_P4_BPU_CCCR3                0x363
 311 #define MSR_P4_MS_CCCR0                 0x364
 312 #define MSR_P4_MS_CCCR1                 0x365
 313 #define MSR_P4_MS_CCCR2                 0x366
 314 #define MSR_P4_MS_CCCR3                 0x367
 315 #define MSR_P4_FLAME_CCCR0              0x368
 316 #define MSR_P4_FLAME_CCCR1              0x369
 317 #define MSR_P4_FLAME_CCCR2              0x36a
 318 #define MSR_P4_FLAME_CCCR3              0x36b
 319 #define MSR_P4_IQ_CCCR0                 0x36c
 320 #define MSR_P4_IQ_CCCR1                 0x36d
 321 #define MSR_P4_IQ_CCCR2                 0x36e
 322 #define MSR_P4_IQ_CCCR3                 0x36f
 323 #define MSR_P4_IQ_CCCR4                 0x370
 324 #define MSR_P4_IQ_CCCR5                 0x371
 325 #define MSR_P4_ALF_ESCR0                0x3ca
 326 #define MSR_P4_ALF_ESCR1                0x3cb
 327 #define MSR_P4_BPU_ESCR0                0x3b2
 328 #define MSR_P4_BPU_ESCR1                0x3b3
 329 #define MSR_P4_BSU_ESCR0                0x3a0
 330 #define MSR_P4_BSU_ESCR1                0x3a1
 331 #define MSR_P4_CRU_ESCR0                0x3b8
 332 #define MSR_P4_CRU_ESCR1                0x3b9
 333 #define MSR_P4_CRU_ESCR2                0x3cc
 334 #define MSR_P4_CRU_ESCR3                0x3cd
 335 #define MSR_P4_CRU_ESCR4                0x3e0
 336 #define MSR_P4_CRU_ESCR5                0x3e1
 337 #define MSR_P4_DAC_ESCR0                0x3a8
 338 #define MSR_P4_DAC_ESCR1                0x3a9
 339 #define MSR_P4_FIRM_ESCR0               0x3a4
 340 #define MSR_P4_FIRM_ESCR1               0x3a5
 341 #define MSR_P4_FLAME_ESCR0              0x3a6
 342 #define MSR_P4_FLAME_ESCR1              0x3a7
 343 #define MSR_P4_FSB_ESCR0                0x3a2
 344 #define MSR_P4_FSB_ESCR1                0x3a3
 345 #define MSR_P4_IQ_ESCR0                 0x3ba
 346 #define MSR_P4_IQ_ESCR1                 0x3bb
 347 #define MSR_P4_IS_ESCR0                 0x3b4
 348 #define MSR_P4_IS_ESCR1                 0x3b5
 349 #define MSR_P4_ITLB_ESCR0               0x3b6
 350 #define MSR_P4_ITLB_ESCR1               0x3b7
 351 #define MSR_P4_IX_ESCR0                 0x3c8
 352 #define MSR_P4_IX_ESCR1                 0x3c9
 353 #define MSR_P4_MOB_ESCR0                0x3aa
 354 #define MSR_P4_MOB_ESCR1                0x3ab
 355 #define MSR_P4_MS_ESCR0                 0x3c0
 356 #define MSR_P4_MS_ESCR1                 0x3c1
 357 #define MSR_P4_PMH_ESCR0                0x3ac
 358 #define MSR_P4_PMH_ESCR1                0x3ad
 359 #define MSR_P4_RAT_ESCR0                0x3bc
 360 #define MSR_P4_RAT_ESCR1                0x3bd
 361 #define MSR_P4_SAAT_ESCR0               0x3ae
 362 #define MSR_P4_SAAT_ESCR1               0x3af
 363 #define MSR_P4_SSU_ESCR0                0x3be
 364 #define MSR_P4_SSU_ESCR1                0x3bf    /* guess: not defined in manual */
 365 #define MSR_P4_TBPU_ESCR0               0x3c2
 366 #define MSR_P4_TBPU_ESCR1               0x3c3
 367 #define MSR_P4_TC_ESCR0                 0x3c4
 368 #define MSR_P4_TC_ESCR1                 0x3c5
 369 #define MSR_P4_U2L_ESCR0                0x3b0
 370 #define MSR_P4_U2L_ESCR1                0x3b1
 371
 372 #endif