osfmk/i386/proc_reg.h

   1 /*
   2  * Copyright (c) 2000-2005 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 /* CMU_ENDHIST */
  32 /*
  33  * Mach Operating System
  34  * Copyright (c) 1991,1990 Carnegie Mellon University
  35  * All Rights Reserved.
  36  *
  37  * Permission to use, copy, modify and distribute this software and its
  38  * documentation is hereby granted, provided that both the copyright
  39  * notice and this permission notice appear in all copies of the
  40  * software, derivative works or modified versions, and any portions
  41  * thereof, and that both notices appear in supporting documentation.
  42  *
  43  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  44  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  45  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  46  *
  47  * Carnegie Mellon requests users of this software to return to
  48  *
  49  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  50  *  School of Computer Science
  51  *  Carnegie Mellon University
  52  *  Pittsburgh PA 15213-3890
  53  *
  54  * any improvements or extensions that they make and grant Carnegie Mellon
  55  * the rights to redistribute these changes.
  56  */
  57
  58 /*
  59  */
  60
  61 /*
  62  * Processor registers for i386 and i486.
  63  */
  64 #ifndef _I386_PROC_REG_H_
  65 #define _I386_PROC_REG_H_
  66
  67 /*
  68  * Model Specific Registers
  69  */
  70 #define MSR_P5_TSC              0x10    /* Time Stamp Register */
  71 #define MSR_P5_CESR             0x11    /* Control and Event Select Register */
  72 #define MSR_P5_CTR0             0x12    /* Counter #0 */
  73 #define MSR_P5_CTR1             0x13    /* Counter #1 */
  74
  75 #define MSR_P5_CESR_PC          0x0200  /* Pin Control */
  76 #define MSR_P5_CESR_CC          0x01C0  /* Counter Control mask */
  77 #define MSR_P5_CESR_ES          0x003F  /* Event Control mask */
  78
  79 #define MSR_P5_CESR_SHIFT       16              /* Shift to get Counter 1 */
  80 #define MSR_P5_CESR_MASK        (MSR_P5_CESR_PC|\
  81                                  MSR_P5_CESR_CC|\
  82                                  MSR_P5_CESR_ES) /* Mask Counter */
  83
  84 #define MSR_P5_CESR_CC_CLOCK    0x0100  /* Clock Counting (otherwise Event) */
  85 #define MSR_P5_CESR_CC_DISABLE  0x0000  /* Disable counter */
  86 #define MSR_P5_CESR_CC_CPL012   0x0040  /* Count if the CPL == 0, 1, 2 */
  87 #define MSR_P5_CESR_CC_CPL3     0x0080  /* Count if the CPL == 3 */
  88 #define MSR_P5_CESR_CC_CPL      0x00C0  /* Count regardless of the CPL */
  89
  90 #define MSR_P5_CESR_ES_DATA_READ       0x000000 /* Data Read */
  91 #define MSR_P5_CESR_ES_DATA_WRITE      0x000001 /* Data Write */
  92 #define MSR_P5_CESR_ES_DATA_RW         0x101000 /* Data Read or Write */
  93 #define MSR_P5_CESR_ES_DATA_TLB_MISS   0x000010 /* Data TLB Miss */
  94 #define MSR_P5_CESR_ES_DATA_READ_MISS  0x000011 /* Data Read Miss */
  95 #define MSR_P5_CESR_ES_DATA_WRITE_MISS 0x000100 /* Data Write Miss */
  96 #define MSR_P5_CESR_ES_DATA_RW_MISS    0x101001 /* Data Read or Write Miss */
  97 #define MSR_P5_CESR_ES_HIT_EM          0x000101 /* Write (hit) to M|E state */
  98 #define MSR_P5_CESR_ES_DATA_CACHE_WB   0x000110 /* Cache lines written back */
  99 #define MSR_P5_CESR_ES_EXTERNAL_SNOOP  0x000111 /* External Snoop */
 100 #define MSR_P5_CESR_ES_CACHE_SNOOP_HIT 0x001000 /* Data cache snoop hits */
 101 #define MSR_P5_CESR_ES_MEM_ACCESS_PIPE 0x001001 /* Mem. access in both pipes */
 102 #define MSR_P5_CESR_ES_BANK_CONFLICTS  0x001010 /* Bank conflicts */
 103 #define MSR_P5_CESR_ES_MISALIGNED      0x001011 /* Misaligned Memory or I/O */
 104 #define MSR_P5_CESR_ES_CODE_READ       0x001100 /* Code Read */
 105 #define MSR_P5_CESR_ES_CODE_TLB_MISS   0x001101 /* Code TLB miss */
 106 #define MSR_P5_CESR_ES_CODE_CACHE_MISS 0x001110 /* Code Cache miss */
 107 #define MSR_P5_CESR_ES_SEGMENT_LOADED  0x001111 /* Any segment reg. loaded */
 108 #define MSR_P5_CESR_ES_BRANCHE         0x010010 /* Branches */
 109 #define MSR_P5_CESR_ES_BTB_HIT         0x010011 /* BTB Hits */
 110 #define MSR_P5_CESR_ES_BRANCHE_BTB     0x010100 /* Taken branch or BTB Hit */
 111 #define MSR_P5_CESR_ES_PIPELINE_FLUSH  0x010101 /* Pipeline Flushes */
 112 #define MSR_P5_CESR_ES_INSTRUCTION     0x010110 /* Instruction executed */
 113 #define MSR_P5_CESR_ES_INSTRUCTION_V   0x010111 /* Inst. executed (v-pipe) */
 114 #define MSR_P5_CESR_ES_BUS_CYCLE       0x011000 /* Clocks while bus cycle */
 115 #define MSR_P5_CESR_ES_FULL_WRITE_BUF  0x011001 /* Clocks while full wrt buf. */
 116 #define MSR_P5_CESR_ES_DATA_MEM_READ   0x011010 /* Pipeline waiting for read */
 117 #define MSR_P5_CESR_ES_WRITE_EM        0x011011 /* Stall on write E|M state */
 118 #define MSR_P5_CESR_ES_LOCKED_CYCLE    0x011100 /* Locked bus cycles */
 119 #define MSR_P5_CESR_ES_IO_CYCLE        0x011101 /* I/O Read or Write cycles */
 120 #define MSR_P5_CESR_ES_NON_CACHEABLE   0x011110 /* Non-cacheable Mem. read */
 121 #define MSR_P5_CESR_ES_AGI             0x011111 /* Stall because of AGI */
 122 #define MSR_P5_CESR_ES_FLOP            0x100010 /* Floating Point operations */
 123 #define MSR_P5_CESR_ES_BREAK_DR0       0x100011 /* Breakpoint matches on DR0 */
 124 #define MSR_P5_CESR_ES_BREAK_DR1       0x100100 /* Breakpoint matches on DR1 */
 125 #define MSR_P5_CESR_ES_BREAK_DR2       0x100101 /* Breakpoint matches on DR2 */
 126 #define MSR_P5_CESR_ES_BREAK_DR3       0x100110 /* Breakpoint matches on DR3 */
 127 #define MSR_P5_CESR_ES_HARDWARE_IT     0x100111 /* Hardware interrupts */
 128
 129 /*
 130  * CR0
 131  */
 132 #define CR0_PG  0x80000000      /*       Enable paging */
 133 #define CR0_CD  0x40000000      /* i486: Cache disable */
 134 #define CR0_NW  0x20000000      /* i486: No write-through */
 135 #define CR0_AM  0x00040000      /* i486: Alignment check mask */
 136 #define CR0_WP  0x00010000      /* i486: Write-protect kernel access */
 137 #define CR0_NE  0x00000020      /* i486: Handle numeric exceptions */
 138 #define CR0_ET  0x00000010      /*       Extension type is 80387 */
 139                                 /*       (not official) */
 140 #define CR0_TS  0x00000008      /*       Task switch */
 141 #define CR0_EM  0x00000004      /*       Emulate coprocessor */
 142 #define CR0_MP  0x00000002      /*       Monitor coprocessor */
 143 #define CR0_PE  0x00000001      /*       Enable protected mode */
 144
 145 /*
 146  * CR4
 147  */
 148 #define CR4_FXS 0x00000200      /* SSE/SSE2 OS supports FXSave */
 149 #define CR4_XMM 0x00000400      /* SSE/SSE2 instructions supported in OS */
 150 #define CR4_PGE 0x00000080      /* p6:   Page Global Enable */
 151 #define CR4_MCE 0x00000040      /* p5:   Machine Check Exceptions */
 152 #define CR4_PAE 0x00000020      /* p5:   Physical Address Extensions */
 153 #define CR4_PSE 0x00000010      /* p5:   Page Size Extensions */
 154 #define CR4_DE  0x00000008      /* p5:   Debugging Extensions */
 155 #define CR4_TSD 0x00000004      /* p5:   Time Stamp Disable */
 156 #define CR4_PVI 0x00000002      /* p5:   Protected-mode Virtual Interrupts */
 157 #define CR4_VME 0x00000001      /* p5:   Virtual-8086 Mode Extensions */
 158
 159 #ifndef ASSEMBLER
 160
 161 #include <sys/cdefs.h>
 162 __BEGIN_DECLS
 163
 164 #define set_ts() \
 165         set_cr0(get_cr0() | CR0_TS)
 166
 167 static inline unsigned int get_cr0(void)
 168 {
 169         register unsigned int cr0;
 170         __asm__ volatile("mov %%cr0, %0" : "=r" (cr0));
 171         return(cr0);
 172 }
 173
 174 static inline void set_cr0(unsigned int value)
 175 {
 176         __asm__ volatile("mov %0, %%cr0" : : "r" (value));
 177 }
 178
 179 static inline unsigned int get_cr2(void)
 180 {
 181         register unsigned int cr2;
 182         __asm__ volatile("mov %%cr2, %0" : "=r" (cr2));
 183         return(cr2);
 184 }
 185
 186 static inline unsigned int get_cr3(void)
 187 {
 188         register unsigned int cr3;
 189         __asm__ volatile("mov %%cr3, %0" : "=r" (cr3));
 190         return(cr3);
 191 }
 192
 193 static inline void set_cr3(unsigned int value)
 194 {
 195         __asm__ volatile("mov %0, %%cr3" : : "r" (value));
 196 }
 197
 198 /* Implemented in locore: */
 199 extern uint32_t get_cr4(void);
 200 extern void     set_cr4(uint32_t);
 201
 202 static inline void clear_ts(void)
 203 {
 204         __asm__ volatile("clts");
 205 }
 206
 207 static inline unsigned short get_tr(void)
 208 {
 209         unsigned short seg;
 210         __asm__ volatile("str %0" : "=rm" (seg));
 211         return(seg);
 212 }
 213
 214 static inline void set_tr(unsigned int seg)
 215 {
 216         __asm__ volatile("ltr %0" : : "rm" ((unsigned short)(seg)));
 217 }
 218
 219 static inline unsigned short get_ldt(void)
 220 {
 221         unsigned short seg;
 222         __asm__ volatile("sldt %0" : "=rm" (seg));
 223         return(seg);
 224 }
 225
 226 static inline void set_ldt(unsigned int seg)
 227 {
 228         __asm__ volatile("lldt %0" : : "rm" ((unsigned short)(seg)));
 229 }
 230
 231 static inline void flush_tlb(void)
 232 {
 233         unsigned long   cr3_temp;
 234         __asm__ volatile("movl %%cr3, %0; movl %0, %%cr3" : "=r" (cr3_temp) :: "memory");
 235 }
 236
 237 static inline void wbinvd(void)
 238 {
 239         __asm__ volatile("wbinvd");
 240 }
 241
 242 static inline void invlpg(unsigned long addr)
 243 {
 244         __asm__  volatile("invlpg (%0)" :: "r" (addr) : "memory");
 245 }
 246
 247 /*
 248  * Access to machine-specific registers (available on 586 and better only)
 249  * Note: the rd* operations modify the parameters directly (without using
 250  * pointer indirection), this allows gcc to optimize better
 251  */
 252
 253 #define rdmsr(msr,lo,hi) \
 254         __asm__ volatile("rdmsr" : "=a" (lo), "=d" (hi) : "c" (msr))
 255
 256 #define wrmsr(msr,lo,hi) \
 257         __asm__ volatile("wrmsr" : : "c" (msr), "a" (lo), "d" (hi))
 258
 259 #define rdtsc(lo,hi) \
 260         __asm__ volatile("rdtsc" : "=a" (lo), "=d" (hi))
 261
 262 #define write_tsc(lo,hi) wrmsr(0x10, lo, hi)
 263
 264 #define rdpmc(counter,lo,hi) \
 265         __asm__ volatile("rdpmc" : "=a" (lo), "=d" (hi) : "c" (counter))
 266
 267 static inline uint64_t rdmsr64(uint32_t msr)
 268 {
 269         uint64_t ret;
 270         __asm__ volatile("rdmsr" : "=A" (ret) : "c" (msr));
 271         return ret;
 272 }
 273
 274 static inline void wrmsr64(uint32_t msr, uint64_t val)
 275 {
 276         __asm__ volatile("wrmsr" : : "c" (msr), "A" (val));
 277 }
 278
 279 static inline uint64_t rdtsc64(void)
 280 {
 281         uint64_t ret;
 282         __asm__ volatile("rdtsc" : "=A" (ret));
 283         return ret;
 284 }
 285
 286 /*
 287  * rdmsr_carefully() returns 0 when the MSR has been read successfully,
 288  * or non-zero (1) if the MSR does not exist.
 289  * The implementation is in locore.s.
 290  */
 291 extern int rdmsr_carefully(uint32_t msr, uint32_t *lo, uint32_t *hi);
 292
 293 __END_DECLS
 294
 295 #endif  /* ASSEMBLER */
 296
 297 #define MSR_IA32_P5_MC_ADDR             0
 298 #define MSR_IA32_P5_MC_TYPE             1
 299 #define MSR_IA32_PLATFORM_ID            0x17
 300 #define MSR_IA32_EBL_CR_POWERON         0x2a
 301
 302 #define MSR_IA32_APIC_BASE              0x1b
 303 #define MSR_IA32_APIC_BASE_BSP          (1<<8)
 304 #define MSR_IA32_APIC_BASE_ENABLE       (1<<11)
 305 #define MSR_IA32_APIC_BASE_BASE         (0xfffff<<12)
 306
 307 #define MSR_IA32_UCODE_WRITE            0x79
 308 #define MSR_IA32_UCODE_REV              0x8b
 309
 310 #define MSR_IA32_PERFCTR0               0xc1
 311 #define MSR_IA32_PERFCTR1               0xc2
 312
 313 #define MSR_IA32_BBL_CR_CTL             0x119
 314
 315 #define MSR_IA32_MCG_CAP                0x179
 316 #define MSR_IA32_MCG_STATUS             0x17a
 317 #define MSR_IA32_MCG_CTL                0x17b
 318
 319 #define MSR_IA32_EVNTSEL0               0x186
 320 #define MSR_IA32_EVNTSEL1               0x187
 321
 322 #define MSR_IA32_MISC_ENABLE            0x1a0
 323
 324 #define MSR_IA32_DEBUGCTLMSR            0x1d9
 325 #define MSR_IA32_LASTBRANCHFROMIP       0x1db
 326 #define MSR_IA32_LASTBRANCHTOIP         0x1dc
 327 #define MSR_IA32_LASTINTFROMIP          0x1dd
 328 #define MSR_IA32_LASTINTTOIP            0x1de
 329
 330 #define MSR_IA32_CR_PAT                 0x277
 331
 332 #define MSR_IA32_MC0_CTL                0x400
 333 #define MSR_IA32_MC0_STATUS             0x401
 334 #define MSR_IA32_MC0_ADDR               0x402
 335 #define MSR_IA32_MC0_MISC               0x403
 336
 337 #define MSR_IA32_MTRRCAP                0xfe
 338 #define MSR_IA32_MTRR_DEF_TYPE          0x2ff
 339 #define MSR_IA32_MTRR_PHYSBASE(n)       (0x200 + 2*(n))
 340 #define MSR_IA32_MTRR_PHYSMASK(n)       (0x200 + 2*(n) + 1)
 341 #define MSR_IA32_MTRR_FIX64K_00000      0x250
 342 #define MSR_IA32_MTRR_FIX16K_80000      0x258
 343 #define MSR_IA32_MTRR_FIX16K_A0000      0x259
 344 #define MSR_IA32_MTRR_FIX4K_C0000       0x268
 345 #define MSR_IA32_MTRR_FIX4K_C8000       0x269
 346 #define MSR_IA32_MTRR_FIX4K_D0000       0x26a
 347 #define MSR_IA32_MTRR_FIX4K_D8000       0x26b
 348 #define MSR_IA32_MTRR_FIX4K_E0000       0x26c
 349 #define MSR_IA32_MTRR_FIX4K_E8000       0x26d
 350 #define MSR_IA32_MTRR_FIX4K_F0000       0x26e
 351 #define MSR_IA32_MTRR_FIX4K_F8000       0x26f
 352
 353 #endif  /* _I386_PROC_REG_H_ */