osfmk/i386/cpuid.h

   1 /*
   2  * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31
  32 /*
  33  * x86 CPU identification
  34  *
  35  */
  36
  37 #ifndef _MACHINE_CPUID_H_
  38 #define _MACHINE_CPUID_H_
  39
  40 #include <sys/appleapiopts.h>
  41
  42 #ifdef __APPLE_API_PRIVATE
  43
  44 #define CPUID_VID_INTEL         "GenuineIntel"
  45 #define CPUID_VID_AMD           "AuthenticAMD"
  46
  47 #define CPUID_STRING_UNKNOWN    "Unknown CPU Typ"
  48
  49 #define _Bit(n)                 (1ULL << n)
  50 #define _HBit(n)                (1ULL << ((n)+32))
  51
  52 /*
  53  * The CPUID_FEATURE_XXX values define 64-bit values
  54  * returned in %ecx:%edx to a CPUID request with %eax of 1:
  55  */
  56 #define CPUID_FEATURE_FPU       _Bit(0)   /* Floating point unit on-chip */
  57 #define CPUID_FEATURE_VME       _Bit(1)   /* Virtual Mode Extension */
  58 #define CPUID_FEATURE_DE        _Bit(2)   /* Debugging Extension */
  59 #define CPUID_FEATURE_PSE       _Bit(3)   /* Page Size Extension */
  60 #define CPUID_FEATURE_TSC       _Bit(4)   /* Time Stamp Counter */
  61 #define CPUID_FEATURE_MSR       _Bit(5)   /* Model Specific Registers */
  62 #define CPUID_FEATURE_PAE       _Bit(6)   /* Physical Address Extension */
  63 #define CPUID_FEATURE_MCE       _Bit(7)   /* Machine Check Exception */
  64 #define CPUID_FEATURE_CX8       _Bit(8)   /* CMPXCHG8B */
  65 #define CPUID_FEATURE_APIC      _Bit(9)   /* On-chip APIC */
  66 #define CPUID_FEATURE_SEP       _Bit(11)  /* Fast System Call */
  67 #define CPUID_FEATURE_MTRR      _Bit(12)  /* Memory Type Range Register */
  68 #define CPUID_FEATURE_PGE       _Bit(13)  /* Page Global Enable */
  69 #define CPUID_FEATURE_MCA       _Bit(14)  /* Machine Check Architecture */
  70 #define CPUID_FEATURE_CMOV      _Bit(15)  /* Conditional Move Instruction */
  71 #define CPUID_FEATURE_PAT       _Bit(16)  /* Page Attribute Table */
  72 #define CPUID_FEATURE_PSE36     _Bit(17)  /* 36-bit Page Size Extension */
  73 #define CPUID_FEATURE_PSN       _Bit(18)  /* Processor Serial Number */
  74 #define CPUID_FEATURE_CLFSH     _Bit(19)  /* CLFLUSH Instruction supported */
  75 #define CPUID_FEATURE_DS        _Bit(21)  /* Debug Store */
  76 #define CPUID_FEATURE_ACPI      _Bit(22)  /* Thermal monitor and Clock Ctrl */
  77 #define CPUID_FEATURE_MMX       _Bit(23)  /* MMX supported */
  78 #define CPUID_FEATURE_FXSR      _Bit(24)  /* Fast floating pt save/restore */
  79 #define CPUID_FEATURE_SSE       _Bit(25)  /* Streaming SIMD extensions */
  80 #define CPUID_FEATURE_SSE2      _Bit(26)  /* Streaming SIMD extensions 2 */
  81 #define CPUID_FEATURE_SS        _Bit(27)  /* Self-Snoop */
  82 #define CPUID_FEATURE_HTT       _Bit(28)  /* Hyper-Threading Technology */
  83 #define CPUID_FEATURE_TM        _Bit(29)  /* Thermal Monitor (TM1) */
  84 #define CPUID_FEATURE_PBE       _Bit(31)  /* Pend Break Enable */
  85
  86 #define CPUID_FEATURE_SSE3      _HBit(0)  /* Streaming SIMD extensions 3 */
  87 #define CPUID_FEATURE_PCLMULQDQ _HBit(1)  /* PCLMULQDQ instruction */
  88 #define CPUID_FEATURE_DTES64    _HBit(2)  /* 64-bit DS layout */
  89 #define CPUID_FEATURE_MONITOR   _HBit(3)  /* Monitor/mwait */
  90 #define CPUID_FEATURE_DSCPL     _HBit(4)  /* Debug Store CPL */
  91 #define CPUID_FEATURE_VMX       _HBit(5)  /* VMX */
  92 #define CPUID_FEATURE_SMX       _HBit(6)  /* SMX */
  93 #define CPUID_FEATURE_EST       _HBit(7)  /* Enhanced SpeedsTep (GV3) */
  94 #define CPUID_FEATURE_TM2       _HBit(8)  /* Thermal Monitor 2 */
  95 #define CPUID_FEATURE_SSSE3     _HBit(9)  /* Supplemental SSE3 instructions */
  96 #define CPUID_FEATURE_CID       _HBit(10) /* L1 Context ID */
  97 #define CPUID_FEATURE_SEGLIM64  _HBit(11) /* 64-bit segment limit checking */
  98 #define CPUID_FEATURE_CX16      _HBit(13) /* CmpXchg16b instruction */
  99 #define CPUID_FEATURE_xTPR      _HBit(14) /* Send Task PRiority msgs */
 100 #define CPUID_FEATURE_PDCM      _HBit(15) /* Perf/Debug Capability MSR */
 101
 102 #define CPUID_FEATURE_PCID      _HBit(17) /* ASID-PCID support */
 103 #define CPUID_FEATURE_DCA       _HBit(18) /* Direct Cache Access */
 104 #define CPUID_FEATURE_SSE4_1    _HBit(19) /* Streaming SIMD extensions 4.1 */
 105 #define CPUID_FEATURE_SSE4_2    _HBit(20) /* Streaming SIMD extensions 4.2 */
 106 #define CPUID_FEATURE_xAPIC     _HBit(21) /* Extended APIC Mode */
 107 #define CPUID_FEATURE_MOVBE     _HBit(22) /* MOVBE instruction */
 108 #define CPUID_FEATURE_POPCNT    _HBit(23) /* POPCNT instruction */
 109 #define CPUID_FEATURE_TSCTMR    _HBit(24) /* TSC deadline timer */
 110 #define CPUID_FEATURE_AES       _HBit(25) /* AES instructions */
 111 #define CPUID_FEATURE_XSAVE     _HBit(26) /* XSAVE instructions */
 112 #define CPUID_FEATURE_OSXSAVE   _HBit(27) /* XGETBV/XSETBV instructions */
 113 #define CPUID_FEATURE_AVX1_0    _HBit(28) /* AVX 1.0 instructions */
 114 #define CPUID_FEATURE_VMM       _HBit(31) /* VMM (Hypervisor) present */
 115 #define CPUID_FEATURE_RDRAND    _HBit(29) /* RDRAND instruction */
 116 #define CPUID_FEATURE_F16C      _HBit(30) /* Float16 convert instructions */
 117
 118 /*
 119  * Leaf 7, subleaf 0 additional features.
 120  * Bits returned in %ebx to a CPUID request with {%eax,%ecx} of (0x7,0x0}:
 121  */
 122 #define CPUID_LEAF7_FEATURE_RDWRFSGS _Bit(0)    /* FS/GS base read/write */
 123 #define CPUID_LEAF7_FEATURE_SMEP     _Bit(7)    /* Supervisor Mode Execute Protect */
 124 #define CPUID_LEAF7_FEATURE_ENFSTRG  _Bit(9)    /* ENhanced Fast STRinG copy */
 125
 126 /*
 127  * The CPUID_EXTFEATURE_XXX values define 64-bit values
 128  * returned in %ecx:%edx to a CPUID request with %eax of 0x80000001:
 129  */
 130 #define CPUID_EXTFEATURE_SYSCALL   _Bit(11)     /* SYSCALL/sysret */
 131 #define CPUID_EXTFEATURE_XD        _Bit(20)     /* eXecute Disable */
 132
 133 #define CPUID_EXTFEATURE_1GBPAGE   _Bit(26)     /* 1GB pages */
 134 #define CPUID_EXTFEATURE_RDTSCP    _Bit(27)     /* RDTSCP */
 135 #define CPUID_EXTFEATURE_EM64T     _Bit(29)     /* Extended Mem 64 Technology */
 136
 137 #define CPUID_EXTFEATURE_LAHF      _HBit(0)     /* LAFH/SAHF instructions */
 138
 139 /*
 140  * The CPUID_EXTFEATURE_XXX values define 64-bit values
 141  * returned in %ecx:%edx to a CPUID request with %eax of 0x80000007:
 142  */
 143 #define CPUID_EXTFEATURE_TSCI      _Bit(8)      /* TSC Invariant */
 144
 145 #define CPUID_CACHE_SIZE        16      /* Number of descriptor values */
 146
 147 #define CPUID_MWAIT_EXTENSION   _Bit(0) /* enumeration of WMAIT extensions */
 148 #define CPUID_MWAIT_BREAK       _Bit(1) /* interrupts are break events     */
 149
 150 #define CPUID_MODEL_YONAH       0x0E
 151 #define CPUID_MODEL_MEROM       0x0F
 152 #define CPUID_MODEL_PENRYN      0x17
 153 #define CPUID_MODEL_NEHALEM     0x1A
 154 #define CPUID_MODEL_FIELDS      0x1E    /* Lynnfield, Clarksfield, Jasper */
 155 #define CPUID_MODEL_DALES       0x1F    /* Havendale, Auburndale */
 156 #define CPUID_MODEL_NEHALEM_EX  0x2E
 157 #define CPUID_MODEL_DALES_32NM  0x25    /* Clarkdale, Arrandale */
 158 #define CPUID_MODEL_WESTMERE    0x2C    /* Gulftown, Westmere-EP, Westmere-WS */
 159 #define CPUID_MODEL_WESTMERE_EX 0x2F
 160 #define CPUID_MODEL_SANDYBRIDGE 0x2A
 161 #define CPUID_MODEL_JAKETOWN    0x2D
 162 #define CPUID_MODEL_IVYBRIDGE   0x3A
 163
 164
 165 #ifndef ASSEMBLER
 166 #include <stdint.h>
 167 #include <mach/mach_types.h>
 168 #include <kern/kern_types.h>
 169 #include <mach/machine.h>
 170
 171
 172 typedef enum { eax, ebx, ecx, edx } cpuid_register_t;
 173 static inline void
 174 cpuid(uint32_t *data)
 175 {
 176         asm("cpuid"
 177                 : "=a" (data[eax]),
 178                   "=b" (data[ebx]),
 179                   "=c" (data[ecx]),
 180                   "=d" (data[edx])
 181                 : "a"  (data[eax]),
 182                   "b"  (data[ebx]),
 183                   "c"  (data[ecx]),
 184                   "d"  (data[edx]));
 185 }
 186
 187 static inline void
 188 do_cpuid(uint32_t selector, uint32_t *data)
 189 {
 190         asm("cpuid"
 191                 : "=a" (data[0]),
 192                   "=b" (data[1]),
 193                   "=c" (data[2]),
 194                   "=d" (data[3])
 195                 : "a"(selector),
 196                   "b" (0),
 197                   "c" (0),
 198                   "d" (0));
 199 }
 200
 201 /*
 202  * Cache ID descriptor structure, used to parse CPUID leaf 2.
 203  * Note: not used in kernel.
 204  */
 205 typedef enum { Lnone, L1I, L1D, L2U, L3U, LCACHE_MAX } cache_type_t ;
 206 typedef struct {
 207         unsigned char   value;          /* Descriptor value */
 208         cache_type_t    type;           /* Cache type */
 209         unsigned int    size;           /* Cache size */
 210         unsigned int    linesize;       /* Cache line size */
 211 #ifdef KERNEL
 212         const char      *description;   /* Cache description */
 213 #endif /* KERNEL */
 214 } cpuid_cache_desc_t;
 215
 216 #ifdef KERNEL
 217 #define CACHE_DESC(value,type,size,linesize,text) \
 218         { value, type, size, linesize, text }
 219 #else
 220 #define CACHE_DESC(value,type,size,linesize,text) \
 221         { value, type, size, linesize }
 222 #endif /* KERNEL */
 223
 224 /* Monitor/mwait Leaf: */
 225 typedef struct {
 226         uint32_t        linesize_min;
 227         uint32_t        linesize_max;
 228         uint32_t        extensions;
 229         uint32_t        sub_Cstates;
 230 } cpuid_mwait_leaf_t;
 231
 232 /* Thermal and Power Management Leaf: */
 233 typedef struct {
 234         boolean_t       sensor;
 235         boolean_t       dynamic_acceleration;
 236         boolean_t       invariant_APIC_timer;
 237         boolean_t       core_power_limits;
 238         boolean_t       fine_grain_clock_mod;
 239         boolean_t       package_thermal_intr;
 240         uint32_t        thresholds;
 241         boolean_t       ACNT_MCNT;
 242         boolean_t       hardware_feedback;
 243         boolean_t       energy_policy;
 244 } cpuid_thermal_leaf_t;
 245
 246
 247 /* XSAVE Feature Leaf: */
 248 typedef struct {
 249         uint32_t        extended_state[4];      /* eax .. edx */
 250 } cpuid_xsave_leaf_t;
 251
 252
 253 /* Architectural Performance Monitoring Leaf: */
 254 typedef struct {
 255         uint8_t         version;
 256         uint8_t         number;
 257         uint8_t         width;
 258         uint8_t         events_number;
 259         uint32_t        events;
 260         uint8_t         fixed_number;
 261         uint8_t         fixed_width;
 262 } cpuid_arch_perf_leaf_t;
 263
 264 /* Physical CPU info - this is exported out of the kernel (kexts), so be wary of changes */
 265 typedef struct {
 266         char            cpuid_vendor[16];
 267         char            cpuid_brand_string[48];
 268         const char      *cpuid_model_string;
 269
 270         cpu_type_t      cpuid_type;     /* this is *not* a cpu_type_t in our <mach/machine.h> */
 271         uint8_t         cpuid_family;
 272         uint8_t         cpuid_model;
 273         uint8_t         cpuid_extmodel;
 274         uint8_t         cpuid_extfamily;
 275         uint8_t         cpuid_stepping;
 276         uint64_t        cpuid_features;
 277         uint64_t        cpuid_extfeatures;
 278         uint32_t        cpuid_signature;
 279         uint8_t         cpuid_brand;
 280         uint8_t         cpuid_processor_flag;
 281
 282         uint32_t        cache_size[LCACHE_MAX];
 283         uint32_t        cache_linesize;
 284
 285         uint8_t         cache_info[64];    /* list of cache descriptors */
 286
 287         uint32_t        cpuid_cores_per_package;
 288         uint32_t        cpuid_logical_per_package;
 289         uint32_t        cache_sharing[LCACHE_MAX];
 290         uint32_t        cache_partitions[LCACHE_MAX];
 291
 292         cpu_type_t      cpuid_cpu_type;                 /* <mach/machine.h> */
 293         cpu_subtype_t   cpuid_cpu_subtype;              /* <mach/machine.h> */
 294
 295         /* Per-vendor info */
 296         cpuid_mwait_leaf_t      cpuid_mwait_leaf;
 297 #define cpuid_mwait_linesize_max        cpuid_mwait_leaf.linesize_max
 298 #define cpuid_mwait_linesize_min        cpuid_mwait_leaf.linesize_min
 299 #define cpuid_mwait_extensions          cpuid_mwait_leaf.extensions
 300 #define cpuid_mwait_sub_Cstates         cpuid_mwait_leaf.sub_Cstates
 301         cpuid_thermal_leaf_t    cpuid_thermal_leaf;
 302         cpuid_arch_perf_leaf_t  cpuid_arch_perf_leaf;
 303         cpuid_xsave_leaf_t      cpuid_xsave_leaf;
 304
 305         /* Cache details: */
 306         uint32_t        cpuid_cache_linesize;
 307         uint32_t        cpuid_cache_L2_associativity;
 308         uint32_t        cpuid_cache_size;
 309
 310         /* Virtual and physical address aize: */
 311         uint32_t        cpuid_address_bits_physical;
 312         uint32_t        cpuid_address_bits_virtual;
 313
 314         uint32_t        cpuid_microcode_version;
 315
 316         /* Numbers of tlbs per processor [i|d, small|large, level0|level1] */
 317         uint32_t        cpuid_tlb[2][2][2];
 318                         #define TLB_INST        0
 319                         #define TLB_DATA        1
 320                         #define TLB_SMALL       0
 321                         #define TLB_LARGE       1
 322         uint32_t        cpuid_stlb;
 323
 324         uint32_t        core_count;
 325         uint32_t        thread_count;
 326
 327         /* Max leaf ids available from CPUID */
 328         uint32_t        cpuid_max_basic;
 329         uint32_t        cpuid_max_ext;
 330
 331         /* Family-specific info links */
 332         uint32_t                cpuid_cpufamily;
 333         cpuid_mwait_leaf_t      *cpuid_mwait_leafp;
 334         cpuid_thermal_leaf_t    *cpuid_thermal_leafp;
 335         cpuid_arch_perf_leaf_t  *cpuid_arch_perf_leafp;
 336         cpuid_xsave_leaf_t      *cpuid_xsave_leafp;
 337         uint32_t                cpuid_leaf7_features;
 338 } i386_cpu_info_t;
 339
 340 #ifdef __cplusplus
 341 extern "C" {
 342 #endif
 343
 344 /*
 345  * External declarations
 346  */
 347 extern cpu_type_t       cpuid_cputype(void);
 348 extern cpu_subtype_t    cpuid_cpusubtype(void);
 349 extern void             cpuid_cpu_display(const char *);
 350 extern void             cpuid_feature_display(const char *);
 351 extern void             cpuid_extfeature_display(const char *);
 352 extern char *           cpuid_get_feature_names(uint64_t, char *, unsigned);
 353 extern char *           cpuid_get_extfeature_names(uint64_t, char *, unsigned);
 354 extern char *           cpuid_get_leaf7_feature_names(uint64_t, char *, unsigned);
 355
 356 extern uint64_t         cpuid_features(void);
 357 extern uint64_t         cpuid_extfeatures(void);
 358 extern uint64_t         cpuid_leaf7_features(void);
 359 extern uint32_t         cpuid_family(void);
 360 extern uint32_t         cpuid_cpufamily(void);
 361
 362 extern void             cpuid_get_info(i386_cpu_info_t *info_p);
 363 extern i386_cpu_info_t  *cpuid_info(void);
 364
 365 extern void             cpuid_set_info(void);
 366
 367 #ifdef __cplusplus
 368 }
 369 #endif
 370
 371 #endif /* ASSEMBLER */
 372
 373 #endif /* __APPLE_API_PRIVATE */
 374 #endif /* _MACHINE_CPUID_H_ */