2 * Copyright (c) 1991 The Regents of the University of California.
3 * Copyright (c) 2008 The DragonFly Project.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
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13 * documentation and/or other materials provided with the distribution.
14 * 4. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 * from: @(#)specialreg.h 7.1 (Berkeley) 5/9/91
31 * $FreeBSD: src/sys/amd64/include/specialreg.h,v 1.39 2007/05/31 11:26:44 des Exp $
34 #ifndef _CPU_SPECIALREG_H_
35 #define _CPU_SPECIALREG_H_
38 * Bits in 386 special registers:
40 #define CR0_PE 0x00000001 /* Protected mode Enable */
41 #define CR0_MP 0x00000002 /* "Math" (fpu) Present */
42 #define CR0_EM 0x00000004 /* EMulate FPU instructions. (trap ESC only) */
43 #define CR0_TS 0x00000008 /* Task Switched (if MP, trap ESC and WAIT) */
44 #define CR0_PG 0x80000000 /* PaGing enable */
47 * Bits in 486 special registers:
49 #define CR0_NE 0x00000020 /* Numeric Error enable (EX16 vs IRQ13) */
50 #define CR0_WP 0x00010000 /* Write Protect (honor page protect in
52 #define CR0_AM 0x00040000 /* Alignment Mask (set to enable AC flag) */
53 #define CR0_NW 0x20000000 /* Not Write-through */
54 #define CR0_CD 0x40000000 /* Cache Disable */
57 * Bits in PPro special registers
59 #define CR4_VME 0x00000001 /* Virtual 8086 mode extensions */
60 #define CR4_PVI 0x00000002 /* Protected-mode virtual interrupts */
61 #define CR4_TSD 0x00000004 /* Time stamp disable */
62 #define CR4_DE 0x00000008 /* Debugging extensions */
63 #define CR4_PSE 0x00000010 /* Page size extensions */
64 #define CR4_PAE 0x00000020 /* Physical address extension */
65 #define CR4_MCE 0x00000040 /* Machine check enable */
66 #define CR4_PGE 0x00000080 /* Page global enable */
67 #define CR4_PCE 0x00000100 /* Performance monitoring counter enable */
68 #define CR4_FXSR 0x00000200 /* Fast FPU save/restore used by OS */
69 #define CR4_XMM 0x00000400 /* enable SIMD/MMX2 to use except 16 */
72 * Bits in x86_64 special registers. EFER is 64 bits wide.
74 #define EFER_SCE 0x000000001 /* System Call Extensions (R/W) */
75 #define EFER_LME 0x000000100 /* Long mode enable (R/W) */
76 #define EFER_LMA 0x000000400 /* Long mode active (R) */
77 #define EFER_NXE 0x000000800 /* PTE No-Execute bit enable (R/W) */
80 * CPUID instruction features register
82 #define CPUID_FPU 0x00000001
83 #define CPUID_VME 0x00000002
84 #define CPUID_DE 0x00000004
85 #define CPUID_PSE 0x00000008
86 #define CPUID_TSC 0x00000010
87 #define CPUID_MSR 0x00000020
88 #define CPUID_PAE 0x00000040
89 #define CPUID_MCE 0x00000080
90 #define CPUID_CX8 0x00000100
91 #define CPUID_APIC 0x00000200
92 #define CPUID_B10 0x00000400
93 #define CPUID_SEP 0x00000800
94 #define CPUID_MTRR 0x00001000
95 #define CPUID_PGE 0x00002000
96 #define CPUID_MCA 0x00004000
97 #define CPUID_CMOV 0x00008000
98 #define CPUID_PAT 0x00010000
99 #define CPUID_PSE36 0x00020000
100 #define CPUID_PSN 0x00040000
101 #define CPUID_CLFSH 0x00080000
102 #define CPUID_B20 0x00100000
103 #define CPUID_DS 0x00200000
104 #define CPUID_ACPI 0x00400000
105 #define CPUID_MMX 0x00800000
106 #define CPUID_FXSR 0x01000000
107 #define CPUID_SSE 0x02000000
108 #define CPUID_XMM 0x02000000
109 #define CPUID_SSE2 0x04000000
110 #define CPUID_SS 0x08000000
111 #define CPUID_HTT 0x10000000
112 #define CPUID_TM 0x20000000
113 #define CPUID_IA64 0x40000000
114 #define CPUID_PBE 0x80000000
116 #define CPUID2_SSE3 0x00000001
117 #define CPUID2_PCLMULQDQ 0x00000002
118 #define CPUID2_DTES64 0x00000004
119 #define CPUID2_MON 0x00000008
120 #define CPUID2_DS_CPL 0x00000010
121 #define CPUID2_VMX 0x00000020
122 #define CPUID2_SMX 0x00000040
123 #define CPUID2_EST 0x00000080
124 #define CPUID2_TM2 0x00000100
125 #define CPUID2_SSSE3 0x00000200
126 #define CPUID2_CNXTID 0x00000400
127 #define CPUID2_CX16 0x00002000
128 #define CPUID2_XTPR 0x00004000
129 #define CPUID2_PDCM 0x00008000
130 #define CPUID2_DCA 0x00040000
131 #define CPUID2_SSE41 0x00080000
132 #define CPUID2_SSE42 0x00100000
133 #define CPUID2_X2APIC 0x00200000
134 #define CPUID2_POPCNT 0x00800000
135 #define CPUID2_AESNI 0x02000000
136 #define CPUID2_RDRAND 0x40000000
137 #define CPUID2_VMM 0x80000000 /* AMD 25481 2.34 page 11 */
140 * Important bits in the AMD extended cpuid flags
142 #define AMDID_SYSCALL 0x00000800
143 #define AMDID_MP 0x00080000
144 #define AMDID_NX 0x00100000
145 #define AMDID_EXT_MMX 0x00400000
146 #define AMDID_FFXSR 0x01000000
147 #define AMDID_PAGE1GB 0x04000000
148 #define AMDID_RDTSCP 0x08000000
149 #define AMDID_LM 0x20000000
150 #define AMDID_EXT_3DNOW 0x40000000
151 #define AMDID_3DNOW 0x80000000
153 #define AMDID2_LAHF 0x00000001
154 #define AMDID2_CMP 0x00000002
155 #define AMDID2_SVM 0x00000004
156 #define AMDID2_EXT_APIC 0x00000008
157 #define AMDID2_CR8 0x00000010
158 #define AMDID2_ABM 0x00000020
159 #define AMDID2_SSE4A 0x00000040
160 #define AMDID2_MAS 0x00000080
161 #define AMDID2_PREFETCH 0x00000100
162 #define AMDID2_OSVW 0x00000200
163 #define AMDID2_IBS 0x00000400
164 #define AMDID2_SSE5 0x00000800
165 #define AMDID2_SKINIT 0x00001000
166 #define AMDID2_WDT 0x00002000
169 * CPUID instruction 1 eax info
171 #define CPUID_STEPPING 0x0000000f
172 #define CPUID_MODEL 0x000000f0
173 #define CPUID_FAMILY 0x00000f00
174 #define CPUID_EXT_MODEL 0x000f0000
175 #define CPUID_EXT_FAMILY 0x0ff00000
176 #define CPUID_TO_MODEL(id) \
177 ((((id) & CPUID_MODEL) >> 4) | \
178 (((id) & CPUID_EXT_MODEL) >> 12))
179 #define CPUID_TO_FAMILY(id) \
180 ((((id) & CPUID_FAMILY) >> 8) + \
181 (((id) & CPUID_EXT_FAMILY) >> 20))
184 * CPUID instruction 1 ebx info
186 #define CPUID_BRAND_INDEX 0x000000ff
187 #define CPUID_CLFUSH_SIZE 0x0000ff00
188 #define CPUID_HTT_CORES 0x00ff0000
189 #define CPUID_LOCAL_APIC_ID 0xff000000
192 * AMD extended function 8000_0008h ecx info
194 #define AMDID_CMP_CORES 0x000000ff
197 * CPUID manufacturers identifiers
199 #define AMD_VENDOR_ID "AuthenticAMD"
200 #define CENTAUR_VENDOR_ID "CentaurHauls"
201 #define INTEL_VENDOR_ID "GenuineIntel"
204 * Model-specific registers for the i386 family
206 #define MSR_P5_MC_ADDR 0x000
207 #define MSR_P5_MC_TYPE 0x001
208 #define MSR_TSC 0x010
209 #define MSR_P5_CESR 0x011
210 #define MSR_P5_CTR0 0x012
211 #define MSR_P5_CTR1 0x013
212 #define MSR_IA32_PLATFORM_ID 0x017
213 #define MSR_APICBASE 0x01b
214 #define MSR_EBL_CR_POWERON 0x02a
215 #define MSR_TEST_CTL 0x033
216 #define MSR_BIOS_UPDT_TRIG 0x079
217 #define MSR_BBL_CR_D0 0x088
218 #define MSR_BBL_CR_D1 0x089
219 #define MSR_BBL_CR_D2 0x08a
220 #define MSR_BIOS_SIGN 0x08b
221 #define MSR_PERFCTR0 0x0c1
222 #define MSR_PERFCTR1 0x0c2
223 #define MSR_IA32_EXT_CONFIG 0x0ee /* Undocumented. Core Solo/Duo only */
224 #define MSR_MTRRcap 0x0fe
225 #define MSR_BBL_CR_ADDR 0x116
226 #define MSR_BBL_CR_DECC 0x118
227 #define MSR_BBL_CR_CTL 0x119
228 #define MSR_BBL_CR_TRIG 0x11a
229 #define MSR_BBL_CR_BUSY 0x11b
230 #define MSR_BBL_CR_CTL3 0x11e
231 #define MSR_SYSENTER_CS_MSR 0x174
232 #define MSR_SYSENTER_ESP_MSR 0x175
233 #define MSR_SYSENTER_EIP_MSR 0x176
234 #define MSR_MCG_CAP 0x179
235 #define MSR_MCG_STATUS 0x17a
236 #define MSR_MCG_CTL 0x17b
237 #define MSR_EVNTSEL0 0x186
238 #define MSR_EVNTSEL1 0x187
239 #define MSR_THERM_CONTROL 0x19a
240 #define MSR_THERM_INTERRUPT 0x19b
241 #define MSR_THERM_STATUS 0x19c
242 #define MSR_IA32_MISC_ENABLE 0x1a0
243 #define MSR_IA32_TEMPERATURE_TARGET 0x1a2
244 #define MSR_DEBUGCTLMSR 0x1d9
245 #define MSR_LASTBRANCHFROMIP 0x1db
246 #define MSR_LASTBRANCHTOIP 0x1dc
247 #define MSR_LASTINTFROMIP 0x1dd
248 #define MSR_LASTINTTOIP 0x1de
249 #define MSR_ROB_CR_BKUPTMPDR6 0x1e0
250 #define MSR_MTRRVarBase 0x200
251 #define MSR_MTRR64kBase 0x250
252 #define MSR_MTRR16kBase 0x258
253 #define MSR_MTRR4kBase 0x268
254 #define MSR_PAT 0x277
255 #define MSR_MTRRdefType 0x2ff
256 #define MSR_MC0_CTL 0x400
257 #define MSR_MC0_STATUS 0x401
258 #define MSR_MC0_ADDR 0x402
259 #define MSR_MC0_MISC 0x403
260 #define MSR_MC1_CTL 0x404
261 #define MSR_MC1_STATUS 0x405
262 #define MSR_MC1_ADDR 0x406
263 #define MSR_MC1_MISC 0x407
264 #define MSR_MC2_CTL 0x408
265 #define MSR_MC2_STATUS 0x409
266 #define MSR_MC2_ADDR 0x40a
267 #define MSR_MC2_MISC 0x40b
268 #define MSR_MC3_CTL 0x40c
269 #define MSR_MC3_STATUS 0x40d
270 #define MSR_MC3_ADDR 0x40e
271 #define MSR_MC3_MISC 0x40f
272 #define MSR_MC4_CTL 0x410
273 #define MSR_MC4_STATUS 0x411
274 #define MSR_MC4_ADDR 0x412
275 #define MSR_MC4_MISC 0x413
278 * Constants related to MSR's.
280 #define APICBASE_RESERVED 0x000006ff
281 #define APICBASE_BSP 0x00000100
282 #define APICBASE_ENABLED 0x00000800
283 #define APICBASE_ADDRESS 0xfffff000
288 #define PAT_UNCACHEABLE 0x00
289 #define PAT_WRITE_COMBINING 0x01
290 #define PAT_WRITE_THROUGH 0x04
291 #define PAT_WRITE_PROTECTED 0x05
292 #define PAT_WRITE_BACK 0x06
293 #define PAT_UNCACHED 0x07
294 #define PAT_VALUE(i, m) ((long)(m) << (8 * (i)))
295 #define PAT_MASK(i) PAT_VALUE(i, 0xff)
298 * Constants related to MTRRs
300 #define MTRR_UNCACHEABLE 0x00
301 #define MTRR_WRITE_COMBINING 0x01
302 #define MTRR_WRITE_THROUGH 0x04
303 #define MTRR_WRITE_PROTECTED 0x05
304 #define MTRR_WRITE_BACK 0x06
305 #define MTRR_N64K 8 /* numbers of fixed-size entries */
308 #define MTRR_CAP_WC 0x0000000000000400UL
309 #define MTRR_CAP_FIXED 0x0000000000000100UL
310 #define MTRR_CAP_VCNT 0x00000000000000ffUL
311 #define MTRR_DEF_ENABLE 0x0000000000000800UL
312 #define MTRR_DEF_FIXED_ENABLE 0x0000000000000400UL
313 #define MTRR_DEF_TYPE 0x00000000000000ffUL
314 #define MTRR_PHYSBASE_PHYSBASE 0x000ffffffffff000UL
315 #define MTRR_PHYSBASE_TYPE 0x00000000000000ffUL
316 #define MTRR_PHYSMASK_PHYSMASK 0x000ffffffffff000UL
317 #define MTRR_PHYSMASK_VALID 0x0000000000000800UL
319 /* Performance Control Register (5x86 only). */
321 #define PCR0_RSTK 0x01 /* Enables return stack */
322 #define PCR0_BTB 0x02 /* Enables branch target buffer */
323 #define PCR0_LOOP 0x04 /* Enables loop */
324 #define PCR0_AIS 0x08 /* Enables all instrcutions stalled to
326 #define PCR0_MLR 0x10 /* Enables reordering of misaligned loads */
327 #define PCR0_BTBRT 0x40 /* Enables BTB test register. */
328 #define PCR0_LSSER 0x80 /* Disable reorder */
330 /* Device Identification Registers */
335 * Machine Check register constants.
337 #define MCG_CAP_COUNT 0x000000ff
338 #define MCG_CAP_CTL_P 0x00000100
339 #define MCG_CAP_EXT_P 0x00000200
340 #define MCG_CAP_TES_P 0x00000800
341 #define MCG_CAP_EXT_CNT 0x00ff0000
342 #define MCG_STATUS_RIPV 0x00000001
343 #define MCG_STATUS_EIPV 0x00000002
344 #define MCG_STATUS_MCIP 0x00000004
345 #define MCG_CTL_ENABLE 0xffffffffffffffffUL
346 #define MCG_CTL_DISABLE 0x0000000000000000UL
347 #define MSR_MC_CTL(x) (MSR_MC0_CTL + (x) * 4)
348 #define MSR_MC_STATUS(x) (MSR_MC0_STATUS + (x) * 4)
349 #define MSR_MC_ADDR(x) (MSR_MC0_ADDR + (x) * 4)
350 #define MSR_MC_MISC(x) (MSR_MC0_MISC + (x) * 4)
351 #define MC_STATUS_MCA_ERROR 0x000000000000ffffUL
352 #define MC_STATUS_MODEL_ERROR 0x00000000ffff0000UL
353 #define MC_STATUS_OTHER_INFO 0x01ffffff00000000UL
354 #define MC_STATUS_PCC 0x0200000000000000UL
355 #define MC_STATUS_ADDRV 0x0400000000000000UL
356 #define MC_STATUS_MISCV 0x0800000000000000UL
357 #define MC_STATUS_EN 0x1000000000000000UL
358 #define MC_STATUS_UC 0x2000000000000000UL
359 #define MC_STATUS_OVER 0x4000000000000000UL
360 #define MC_STATUS_VAL 0x8000000000000000UL
363 * The following four 3-byte registers control the non-cacheable regions.
364 * These registers must be written as three separate bytes.
366 * NCRx+0: A31-A24 of starting address
367 * NCRx+1: A23-A16 of starting address
368 * NCRx+2: A15-A12 of starting address | NCR_SIZE_xx.
370 * The non-cacheable region's starting address must be aligned to the
371 * size indicated by the NCR_SIZE_xx field.
378 #define NCR_SIZE_0K 0
379 #define NCR_SIZE_4K 1
380 #define NCR_SIZE_8K 2
381 #define NCR_SIZE_16K 3
382 #define NCR_SIZE_32K 4
383 #define NCR_SIZE_64K 5
384 #define NCR_SIZE_128K 6
385 #define NCR_SIZE_256K 7
386 #define NCR_SIZE_512K 8
387 #define NCR_SIZE_1M 9
388 #define NCR_SIZE_2M 10
389 #define NCR_SIZE_4M 11
390 #define NCR_SIZE_8M 12
391 #define NCR_SIZE_16M 13
392 #define NCR_SIZE_32M 14
393 #define NCR_SIZE_4G 15
396 * The address region registers are used to specify the location and
397 * size for the eight address regions.
399 * ARRx + 0: A31-A24 of start address
400 * ARRx + 1: A23-A16 of start address
401 * ARRx + 2: A15-A12 of start address | ARR_SIZE_xx
412 #define ARR_SIZE_0K 0
413 #define ARR_SIZE_4K 1
414 #define ARR_SIZE_8K 2
415 #define ARR_SIZE_16K 3
416 #define ARR_SIZE_32K 4
417 #define ARR_SIZE_64K 5
418 #define ARR_SIZE_128K 6
419 #define ARR_SIZE_256K 7
420 #define ARR_SIZE_512K 8
421 #define ARR_SIZE_1M 9
422 #define ARR_SIZE_2M 10
423 #define ARR_SIZE_4M 11
424 #define ARR_SIZE_8M 12
425 #define ARR_SIZE_16M 13
426 #define ARR_SIZE_32M 14
427 #define ARR_SIZE_4G 15
430 * The region control registers specify the attributes associated with
431 * the ARRx addres regions.
442 #define RCR_RCD 0x01 /* Disables caching for ARRx (x = 0-6). */
443 #define RCR_RCE 0x01 /* Enables caching for ARR7. */
444 #define RCR_WWO 0x02 /* Weak write ordering. */
445 #define RCR_WL 0x04 /* Weak locking. */
446 #define RCR_WG 0x08 /* Write gathering. */
447 #define RCR_WT 0x10 /* Write-through. */
448 #define RCR_NLB 0x20 /* LBA# pin is not asserted. */
450 /* AMD Write Allocate Top-Of-Memory and Control Register */
451 #define AMD_WT_ALLOC_TME 0x40000 /* top-of-memory enable */
452 #define AMD_WT_ALLOC_PRE 0x20000 /* programmable range enable */
453 #define AMD_WT_ALLOC_FRE 0x10000 /* fixed (A0000-FFFFF) range enable */
456 #define MSR_EFER 0xc0000080 /* extended features */
457 #define MSR_STAR 0xc0000081 /* legacy mode SYSCALL target/cs/ss */
458 #define MSR_LSTAR 0xc0000082 /* long mode SYSCALL target rip */
459 #define MSR_CSTAR 0xc0000083 /* compat mode SYSCALL target rip */
460 #define MSR_SF_MASK 0xc0000084 /* syscall flags mask */
461 #define MSR_FSBASE 0xc0000100 /* base address of the %fs "segment" */
462 #define MSR_GSBASE 0xc0000101 /* base address of the %gs "segment" */
463 #define MSR_KGSBASE 0xc0000102 /* base address of the kernel %gs */
464 #define MSR_PERFEVSEL0 0xc0010000
465 #define MSR_PERFEVSEL1 0xc0010001
466 #define MSR_PERFEVSEL2 0xc0010002
467 #define MSR_PERFEVSEL3 0xc0010003
470 #define MSR_PERFCTR0 0xc0010004
471 #define MSR_PERFCTR1 0xc0010005
472 #define MSR_PERFCTR2 0xc0010006
473 #define MSR_PERFCTR3 0xc0010007
474 #define MSR_SYSCFG 0xc0010010
475 #define MSR_IORRBASE0 0xc0010016
476 #define MSR_IORRMASK0 0xc0010017
477 #define MSR_IORRBASE1 0xc0010018
478 #define MSR_IORRMASK1 0xc0010019
479 #define MSR_TOP_MEM 0xc001001a /* boundary for ram below 4G */
480 #define MSR_TOP_MEM2 0xc001001d /* boundary for ram above 4G */
481 #define MSR_K8_UCODE_UPDATE 0xc0010020 /* update microcode */
483 /* VIA ACE crypto featureset: for via_feature_rng */
484 #define VIA_HAS_RNG 1 /* cpu has RNG */
486 /* VIA ACE crypto featureset: for via_feature_xcrypt */
487 #define VIA_HAS_AES 1 /* cpu has AES */
488 #define VIA_HAS_SHA 2 /* cpu has SHA1 & SHA256 */
489 #define VIA_HAS_MM 4 /* cpu has RSA instructions */
490 #define VIA_HAS_AESCTR 8 /* cpu has AES-CTR instructions */
492 /* Centaur Extended Feature flags */
493 #define VIA_CPUID_HAS_RNG 0x000004
494 #define VIA_CPUID_DO_RNG 0x000008
495 #define VIA_CPUID_HAS_ACE 0x000040
496 #define VIA_CPUID_DO_ACE 0x000080
497 #define VIA_CPUID_HAS_ACE2 0x000100
498 #define VIA_CPUID_DO_ACE2 0x000200
499 #define VIA_CPUID_HAS_PHE 0x000400
500 #define VIA_CPUID_DO_PHE 0x000800
501 #define VIA_CPUID_HAS_PMM 0x001000
502 #define VIA_CPUID_DO_PMM 0x002000
504 #endif /* !_CPU_SPECIALREG_H_ */