specialreg.h revision 167493
1/*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * from: @(#)specialreg.h 7.1 (Berkeley) 5/9/91 30 * $FreeBSD: head/sys/i386/include/specialreg.h 167493 2007-03-12 20:27:21Z jkim $ 31 */ 32 33#ifndef _MACHINE_SPECIALREG_H_ 34#define _MACHINE_SPECIALREG_H_ 35 36/* 37 * Bits in 386 special registers: 38 */ 39#define CR0_PE 0x00000001 /* Protected mode Enable */ 40#define CR0_MP 0x00000002 /* "Math" (fpu) Present */ 41#define CR0_EM 0x00000004 /* EMulate FPU instructions. (trap ESC only) */ 42#define CR0_TS 0x00000008 /* Task Switched (if MP, trap ESC and WAIT) */ 43#define CR0_PG 0x80000000 /* PaGing enable */ 44 45/* 46 * Bits in 486 special registers: 47 */ 48#define CR0_NE 0x00000020 /* Numeric Error enable (EX16 vs IRQ13) */ 49#define CR0_WP 0x00010000 /* Write Protect (honor page protect in 50 all modes) */ 51#define CR0_AM 0x00040000 /* Alignment Mask (set to enable AC flag) */ 52#define CR0_NW 0x20000000 /* Not Write-through */ 53#define CR0_CD 0x40000000 /* Cache Disable */ 54 55/* 56 * Bits in PPro special registers 57 */ 58#define CR4_VME 0x00000001 /* Virtual 8086 mode extensions */ 59#define CR4_PVI 0x00000002 /* Protected-mode virtual interrupts */ 60#define CR4_TSD 0x00000004 /* Time stamp disable */ 61#define CR4_DE 0x00000008 /* Debugging extensions */ 62#define CR4_PSE 0x00000010 /* Page size extensions */ 63#define CR4_PAE 0x00000020 /* Physical address extension */ 64#define CR4_MCE 0x00000040 /* Machine check enable */ 65#define CR4_PGE 0x00000080 /* Page global enable */ 66#define CR4_PCE 0x00000100 /* Performance monitoring counter enable */ 67#define CR4_FXSR 0x00000200 /* Fast FPU save/restore used by OS */ 68#define CR4_XMM 0x00000400 /* enable SIMD/MMX2 to use except 16 */ 69 70/* 71 * CPUID instruction features register 72 */ 73#define CPUID_FPU 0x00000001 74#define CPUID_VME 0x00000002 75#define CPUID_DE 0x00000004 76#define CPUID_PSE 0x00000008 77#define CPUID_TSC 0x00000010 78#define CPUID_MSR 0x00000020 79#define CPUID_PAE 0x00000040 80#define CPUID_MCE 0x00000080 81#define CPUID_CX8 0x00000100 82#define CPUID_APIC 0x00000200 83#define CPUID_B10 0x00000400 84#define CPUID_SEP 0x00000800 85#define CPUID_MTRR 0x00001000 86#define CPUID_PGE 0x00002000 87#define CPUID_MCA 0x00004000 88#define CPUID_CMOV 0x00008000 89#define CPUID_PAT 0x00010000 90#define CPUID_PSE36 0x00020000 91#define CPUID_PSN 0x00040000 92#define CPUID_CLFSH 0x00080000 93#define CPUID_B20 0x00100000 94#define CPUID_DS 0x00200000 95#define CPUID_ACPI 0x00400000 96#define CPUID_MMX 0x00800000 97#define CPUID_FXSR 0x01000000 98#define CPUID_SSE 0x02000000 99#define CPUID_XMM 0x02000000 100#define CPUID_SSE2 0x04000000 101#define CPUID_SS 0x08000000 102#define CPUID_HTT 0x10000000 103#define CPUID_TM 0x20000000 104#define CPUID_IA64 0x40000000 105#define CPUID_PBE 0x80000000 106 107#define CPUID2_SSE3 0x00000001 108#define CPUID2_MON 0x00000008 109#define CPUID2_DS_CPL 0x00000010 110#define CPUID2_VMX 0x00000020 111#define CPUID2_EST 0x00000080 112#define CPUID2_TM2 0x00000100 113#define CPUID2_SSSE3 0x00000200 114#define CPUID2_CNXTID 0x00000400 115#define CPUID2_CX16 0x00002000 116#define CPUID2_XTPR 0x00004000 117 118/* 119 * Important bits in the AMD extended cpuid flags 120 */ 121#define AMDID_SYSCALL 0x00000800 122#define AMDID_MP 0x00080000 123#define AMDID_NX 0x00100000 124#define AMDID_EXT_MMX 0x00400000 125#define AMDID_FFXSR 0x01000000 126#define AMDID_RDTSCP 0x08000000 127#define AMDID_LM 0x20000000 128#define AMDID_EXT_3DNOW 0x40000000 129#define AMDID_3DNOW 0x80000000 130 131#define AMDID2_LAHF 0x00000001 132#define AMDID2_CMP 0x00000002 133#define AMDID2_SVM 0x00000004 134#define AMDID2_EXT_APIC 0x00000008 135#define AMDID2_CR8 0x00000010 136#define AMDID2_PREFETCH 0x00000100 137 138/* 139 * CPUID instruction 1 ebx info 140 */ 141#define CPUID_BRAND_INDEX 0x000000ff 142#define CPUID_CLFUSH_SIZE 0x0000ff00 143#define CPUID_HTT_CORES 0x00ff0000 144#define CPUID_LOCAL_APIC_ID 0xff000000 145 146/* 147 * AMD extended function 8000_0008h ecx info 148 */ 149#define AMDID_CMP_CORES 0x000000ff 150 151/* 152 * Model-specific registers for the i386 family 153 */ 154#define MSR_P5_MC_ADDR 0x000 155#define MSR_P5_MC_TYPE 0x001 156#define MSR_TSC 0x010 157#define MSR_P5_CESR 0x011 158#define MSR_P5_CTR0 0x012 159#define MSR_P5_CTR1 0x013 160#define MSR_IA32_PLATFORM_ID 0x017 161#define MSR_APICBASE 0x01b 162#define MSR_EBL_CR_POWERON 0x02a 163#define MSR_TEST_CTL 0x033 164#define MSR_BIOS_UPDT_TRIG 0x079 165#define MSR_BBL_CR_D0 0x088 166#define MSR_BBL_CR_D1 0x089 167#define MSR_BBL_CR_D2 0x08a 168#define MSR_BIOS_SIGN 0x08b 169#define MSR_PERFCTR0 0x0c1 170#define MSR_PERFCTR1 0x0c2 171#define MSR_MTRRcap 0x0fe 172#define MSR_BBL_CR_ADDR 0x116 173#define MSR_BBL_CR_DECC 0x118 174#define MSR_BBL_CR_CTL 0x119 175#define MSR_BBL_CR_TRIG 0x11a 176#define MSR_BBL_CR_BUSY 0x11b 177#define MSR_BBL_CR_CTL3 0x11e 178#define MSR_SYSENTER_CS_MSR 0x174 179#define MSR_SYSENTER_ESP_MSR 0x175 180#define MSR_SYSENTER_EIP_MSR 0x176 181#define MSR_MCG_CAP 0x179 182#define MSR_MCG_STATUS 0x17a 183#define MSR_MCG_CTL 0x17b 184#define MSR_EVNTSEL0 0x186 185#define MSR_EVNTSEL1 0x187 186#define MSR_THERM_CONTROL 0x19a 187#define MSR_THERM_INTERRUPT 0x19b 188#define MSR_THERM_STATUS 0x19c 189#define MSR_IA32_MISC_ENABLE 0x1a0 190#define MSR_DEBUGCTLMSR 0x1d9 191#define MSR_LASTBRANCHFROMIP 0x1db 192#define MSR_LASTBRANCHTOIP 0x1dc 193#define MSR_LASTINTFROMIP 0x1dd 194#define MSR_LASTINTTOIP 0x1de 195#define MSR_ROB_CR_BKUPTMPDR6 0x1e0 196#define MSR_MTRRVarBase 0x200 197#define MSR_MTRR64kBase 0x250 198#define MSR_MTRR16kBase 0x258 199#define MSR_MTRR4kBase 0x268 200#define MSR_PAT 0x277 201#define MSR_MTRRdefType 0x2ff 202#define MSR_MC0_CTL 0x400 203#define MSR_MC0_STATUS 0x401 204#define MSR_MC0_ADDR 0x402 205#define MSR_MC0_MISC 0x403 206#define MSR_MC1_CTL 0x404 207#define MSR_MC1_STATUS 0x405 208#define MSR_MC1_ADDR 0x406 209#define MSR_MC1_MISC 0x407 210#define MSR_MC2_CTL 0x408 211#define MSR_MC2_STATUS 0x409 212#define MSR_MC2_ADDR 0x40a 213#define MSR_MC2_MISC 0x40b 214#define MSR_MC3_CTL 0x40c 215#define MSR_MC3_STATUS 0x40d 216#define MSR_MC3_ADDR 0x40e 217#define MSR_MC3_MISC 0x40f 218#define MSR_MC4_CTL 0x410 219#define MSR_MC4_STATUS 0x411 220#define MSR_MC4_ADDR 0x412 221#define MSR_MC4_MISC 0x413 222 223/* 224 * Constants related to MSR's. 225 */ 226#define APICBASE_RESERVED 0x000006ff 227#define APICBASE_BSP 0x00000100 228#define APICBASE_ENABLED 0x00000800 229#define APICBASE_ADDRESS 0xfffff000 230 231/* 232 * PAT modes. 233 */ 234#define PAT_UNCACHEABLE 0x00 235#define PAT_WRITE_COMBINING 0x01 236#define PAT_WRITE_THROUGH 0x04 237#define PAT_WRITE_PROTECTED 0x05 238#define PAT_WRITE_BACK 0x06 239#define PAT_UNCACHED 0x07 240#define PAT_VALUE(i, m) ((long long)(m) << (8 * (i))) 241#define PAT_MASK(i) PAT_VALUE(i, 0xff) 242 243/* 244 * Constants related to MTRRs 245 */ 246#define MTRR_N64K 8 /* numbers of fixed-size entries */ 247#define MTRR_N16K 16 248#define MTRR_N4K 64 249 250/* 251 * Cyrix configuration registers, accessible as IO ports. 252 */ 253#define CCR0 0xc0 /* Configuration control register 0 */ 254#define CCR0_NC0 0x01 /* First 64K of each 1M memory region is 255 non-cacheable */ 256#define CCR0_NC1 0x02 /* 640K-1M region is non-cacheable */ 257#define CCR0_A20M 0x04 /* Enables A20M# input pin */ 258#define CCR0_KEN 0x08 /* Enables KEN# input pin */ 259#define CCR0_FLUSH 0x10 /* Enables FLUSH# input pin */ 260#define CCR0_BARB 0x20 /* Flushes internal cache when entering hold 261 state */ 262#define CCR0_CO 0x40 /* Cache org: 1=direct mapped, 0=2x set 263 assoc */ 264#define CCR0_SUSPEND 0x80 /* Enables SUSP# and SUSPA# pins */ 265 266#define CCR1 0xc1 /* Configuration control register 1 */ 267#define CCR1_RPL 0x01 /* Enables RPLSET and RPLVAL# pins */ 268#define CCR1_SMI 0x02 /* Enables SMM pins */ 269#define CCR1_SMAC 0x04 /* System management memory access */ 270#define CCR1_MMAC 0x08 /* Main memory access */ 271#define CCR1_NO_LOCK 0x10 /* Negate LOCK# */ 272#define CCR1_SM3 0x80 /* SMM address space address region 3 */ 273 274#define CCR2 0xc2 275#define CCR2_WB 0x02 /* Enables WB cache interface pins */ 276#define CCR2_SADS 0x02 /* Slow ADS */ 277#define CCR2_LOCK_NW 0x04 /* LOCK NW Bit */ 278#define CCR2_SUSP_HLT 0x08 /* Suspend on HALT */ 279#define CCR2_WT1 0x10 /* WT region 1 */ 280#define CCR2_WPR1 0x10 /* Write-protect region 1 */ 281#define CCR2_BARB 0x20 /* Flushes write-back cache when entering 282 hold state. */ 283#define CCR2_BWRT 0x40 /* Enables burst write cycles */ 284#define CCR2_USE_SUSP 0x80 /* Enables suspend pins */ 285 286#define CCR3 0xc3 287#define CCR3_SMILOCK 0x01 /* SMM register lock */ 288#define CCR3_NMI 0x02 /* Enables NMI during SMM */ 289#define CCR3_LINBRST 0x04 /* Linear address burst cycles */ 290#define CCR3_SMMMODE 0x08 /* SMM Mode */ 291#define CCR3_MAPEN0 0x10 /* Enables Map0 */ 292#define CCR3_MAPEN1 0x20 /* Enables Map1 */ 293#define CCR3_MAPEN2 0x40 /* Enables Map2 */ 294#define CCR3_MAPEN3 0x80 /* Enables Map3 */ 295 296#define CCR4 0xe8 297#define CCR4_IOMASK 0x07 298#define CCR4_MEM 0x08 /* Enables momory bypassing */ 299#define CCR4_DTE 0x10 /* Enables directory table entry cache */ 300#define CCR4_FASTFPE 0x20 /* Fast FPU exception */ 301#define CCR4_CPUID 0x80 /* Enables CPUID instruction */ 302 303#define CCR5 0xe9 304#define CCR5_WT_ALLOC 0x01 /* Write-through allocate */ 305#define CCR5_SLOP 0x02 /* LOOP instruction slowed down */ 306#define CCR5_LBR1 0x10 /* Local bus region 1 */ 307#define CCR5_ARREN 0x20 /* Enables ARR region */ 308 309#define CCR6 0xea 310 311#define CCR7 0xeb 312 313/* Performance Control Register (5x86 only). */ 314#define PCR0 0x20 315#define PCR0_RSTK 0x01 /* Enables return stack */ 316#define PCR0_BTB 0x02 /* Enables branch target buffer */ 317#define PCR0_LOOP 0x04 /* Enables loop */ 318#define PCR0_AIS 0x08 /* Enables all instrcutions stalled to 319 serialize pipe. */ 320#define PCR0_MLR 0x10 /* Enables reordering of misaligned loads */ 321#define PCR0_BTBRT 0x40 /* Enables BTB test register. */ 322#define PCR0_LSSER 0x80 /* Disable reorder */ 323 324/* Device Identification Registers */ 325#define DIR0 0xfe 326#define DIR1 0xff 327 328/* 329 * The following four 3-byte registers control the non-cacheable regions. 330 * These registers must be written as three separate bytes. 331 * 332 * NCRx+0: A31-A24 of starting address 333 * NCRx+1: A23-A16 of starting address 334 * NCRx+2: A15-A12 of starting address | NCR_SIZE_xx. 335 * 336 * The non-cacheable region's starting address must be aligned to the 337 * size indicated by the NCR_SIZE_xx field. 338 */ 339#define NCR1 0xc4 340#define NCR2 0xc7 341#define NCR3 0xca 342#define NCR4 0xcd 343 344#define NCR_SIZE_0K 0 345#define NCR_SIZE_4K 1 346#define NCR_SIZE_8K 2 347#define NCR_SIZE_16K 3 348#define NCR_SIZE_32K 4 349#define NCR_SIZE_64K 5 350#define NCR_SIZE_128K 6 351#define NCR_SIZE_256K 7 352#define NCR_SIZE_512K 8 353#define NCR_SIZE_1M 9 354#define NCR_SIZE_2M 10 355#define NCR_SIZE_4M 11 356#define NCR_SIZE_8M 12 357#define NCR_SIZE_16M 13 358#define NCR_SIZE_32M 14 359#define NCR_SIZE_4G 15 360 361/* 362 * The address region registers are used to specify the location and 363 * size for the eight address regions. 364 * 365 * ARRx + 0: A31-A24 of start address 366 * ARRx + 1: A23-A16 of start address 367 * ARRx + 2: A15-A12 of start address | ARR_SIZE_xx 368 */ 369#define ARR0 0xc4 370#define ARR1 0xc7 371#define ARR2 0xca 372#define ARR3 0xcd 373#define ARR4 0xd0 374#define ARR5 0xd3 375#define ARR6 0xd6 376#define ARR7 0xd9 377 378#define ARR_SIZE_0K 0 379#define ARR_SIZE_4K 1 380#define ARR_SIZE_8K 2 381#define ARR_SIZE_16K 3 382#define ARR_SIZE_32K 4 383#define ARR_SIZE_64K 5 384#define ARR_SIZE_128K 6 385#define ARR_SIZE_256K 7 386#define ARR_SIZE_512K 8 387#define ARR_SIZE_1M 9 388#define ARR_SIZE_2M 10 389#define ARR_SIZE_4M 11 390#define ARR_SIZE_8M 12 391#define ARR_SIZE_16M 13 392#define ARR_SIZE_32M 14 393#define ARR_SIZE_4G 15 394 395/* 396 * The region control registers specify the attributes associated with 397 * the ARRx addres regions. 398 */ 399#define RCR0 0xdc 400#define RCR1 0xdd 401#define RCR2 0xde 402#define RCR3 0xdf 403#define RCR4 0xe0 404#define RCR5 0xe1 405#define RCR6 0xe2 406#define RCR7 0xe3 407 408#define RCR_RCD 0x01 /* Disables caching for ARRx (x = 0-6). */ 409#define RCR_RCE 0x01 /* Enables caching for ARR7. */ 410#define RCR_WWO 0x02 /* Weak write ordering. */ 411#define RCR_WL 0x04 /* Weak locking. */ 412#define RCR_WG 0x08 /* Write gathering. */ 413#define RCR_WT 0x10 /* Write-through. */ 414#define RCR_NLB 0x20 /* LBA# pin is not asserted. */ 415 416/* AMD Write Allocate Top-Of-Memory and Control Register */ 417#define AMD_WT_ALLOC_TME 0x40000 /* top-of-memory enable */ 418#define AMD_WT_ALLOC_PRE 0x20000 /* programmable range enable */ 419#define AMD_WT_ALLOC_FRE 0x10000 /* fixed (A0000-FFFFF) range enable */ 420 421/* VIA ACE crypto featureset: for via_feature_rng */ 422#define VIA_HAS_RNG 1 /* cpu has RNG */ 423 424/* VIA ACE crypto featureset: for via_feature_xcrypt */ 425#define VIA_HAS_AES 1 /* cpu has AES */ 426#define VIA_HAS_SHA 2 /* cpu has SHA1 & SHA256 */ 427#define VIA_HAS_MM 4 /* cpu has RSA instructions */ 428#define VIA_HAS_AESCTR 8 /* cpu has AES-CTR instructions */ 429 430/* Centaur Extended Feature flags */ 431#define VIA_CPUID_HAS_RNG 0x000004 432#define VIA_CPUID_DO_RNG 0x000008 433#define VIA_CPUID_HAS_ACE 0x000040 434#define VIA_CPUID_DO_ACE 0x000080 435#define VIA_CPUID_HAS_ACE2 0x000100 436#define VIA_CPUID_DO_ACE2 0x000200 437#define VIA_CPUID_HAS_PHE 0x000400 438#define VIA_CPUID_DO_PHE 0x000800 439#define VIA_CPUID_HAS_PMM 0x001000 440#define VIA_CPUID_DO_PMM 0x002000 441 442/* VIA ACE xcrypt-* instruction context control options */ 443#define VIA_CRYPT_CWLO_ROUND_M 0x0000000f 444#define VIA_CRYPT_CWLO_ALG_M 0x00000070 445#define VIA_CRYPT_CWLO_ALG_AES 0x00000000 446#define VIA_CRYPT_CWLO_KEYGEN_M 0x00000080 447#define VIA_CRYPT_CWLO_KEYGEN_HW 0x00000000 448#define VIA_CRYPT_CWLO_KEYGEN_SW 0x00000080 449#define VIA_CRYPT_CWLO_NORMAL 0x00000000 450#define VIA_CRYPT_CWLO_INTERMEDIATE 0x00000100 451#define VIA_CRYPT_CWLO_ENCRYPT 0x00000000 452#define VIA_CRYPT_CWLO_DECRYPT 0x00000200 453#define VIA_CRYPT_CWLO_KEY128 0x0000000a /* 128bit, 10 rds */ 454#define VIA_CRYPT_CWLO_KEY192 0x0000040c /* 192bit, 12 rds */ 455#define VIA_CRYPT_CWLO_KEY256 0x0000080e /* 256bit, 15 rds */ 456 457#ifndef LOCORE 458static __inline u_char 459read_cyrix_reg(u_char reg) 460{ 461 outb(0x22, reg); 462 return inb(0x23); 463} 464 465static __inline void 466write_cyrix_reg(u_char reg, u_char data) 467{ 468 outb(0x22, reg); 469 outb(0x23, data); 470} 471#endif 472 473#endif /* !_MACHINE_SPECIALREG_H_ */ 474