/* $OpenBSD: specialreg.h,v 1.16 2003/07/25 21:42:02 mickey Exp $ */ /* $NetBSD: specialreg.h,v 1.7 1994/10/27 04:16:26 cgd Exp $ */ /*- * Copyright (c) 1991 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)specialreg.h 7.1 (Berkeley) 5/9/91 */ /* * Bits in 386 special registers: */ #define CR0_PE 0x00000001 /* Protected mode Enable */ #define CR0_MP 0x00000002 /* "Math" Present (NPX or NPX emulator) */ #define CR0_EM 0x00000004 /* EMulate non-NPX coproc. (trap ESC only) */ #define CR0_TS 0x00000008 /* Task Switched (if MP, trap ESC and WAIT) */ #define CR0_ET 0x00000010 /* Extension Type (387 (if set) vs 287) */ #define CR0_PG 0x80000000 /* PaGing enable */ /* * Bits in 486 special registers: */ #define CR0_NE 0x00000020 /* Numeric Error enable (EX16 vs IRQ13) */ #define CR0_WP 0x00010000 /* Write Protect (honor PG_RW in all modes) */ #define CR0_AM 0x00040000 /* Alignment Mask (set to enable AC flag) */ #define CR0_NW 0x20000000 /* Not Write-through */ #define CR0_CD 0x40000000 /* Cache Disable */ /* * Cyrix 486 DLC special registers, accessable as IO ports. */ #define CCR0 0xc0 /* configuration control register 0 */ #define CCR0_NC0 0x01 /* first 64K of each 1M memory region is non-cacheable */ #define CCR0_NC1 0x02 /* 640K-1M region is non-cacheable */ #define CCR0_A20M 0x04 /* enables A20M# input pin */ #define CCR0_KEN 0x08 /* enables KEN# input pin */ #define CCR0_FLUSH 0x10 /* enables FLUSH# input pin */ #define CCR0_BARB 0x20 /* flushes internal cache when entering hold state */ #define CCR0_CO 0x40 /* cache org: 1=direct mapped, 0=2x set assoc */ #define CCR0_SUSPEND 0x80 /* enables SUSP# and SUSPA# pins */ #define CCR1 0xc1 /* configuration control register 1 */ #define CCR1_RPL 0x01 /* enables RPLSET and RPLVAL# pins */ /* the remaining 7 bits of this register are reserved */ /* * bits in the pentiums %cr4 register: */ #define CR4_VME 0x00000001 /* virtual 8086 mode extension enable */ #define CR4_PVI 0x00000002 /* protected mode virtual interrupt enable */ #define CR4_TSD 0x00000004 /* restrict RDTSC instruction to cpl 0 only */ #define CR4_DE 0x00000008 /* debugging extension */ #define CR4_PSE 0x00000010 /* large (4MB) page size enable */ #define CR4_PAE 0x00000020 /* physical address extension enable */ #define CR4_MCE 0x00000040 /* machine check enable */ #define CR4_PGE 0x00000080 /* page global enable */ #define CR4_PCE 0x00000100 /* enable RDPMC instruction for all cpls */ #define CR4_OSFXSR 0x00000200 /* enable SSE instructions (P6 & later) */ #define CR4_OSXMMEXCPT 0x00000400 /* enable SSE instructions (P6 & later) */ /* * CPUID "features" (and "extended features") bits: */ #define CPUID_FPU 0x00000001 /* processor has an FPU? */ #define CPUID_VME 0x00000002 /* has virtual mode (%cr4's VME/PVI) */ #define CPUID_DE 0x00000004 /* has debugging extension */ #define CPUID_PSE 0x00000008 /* has 4MB page size extension */ #define CPUID_TSC 0x00000010 /* has time stamp counter */ #define CPUID_MSR 0x00000020 /* has mode specific registers */ #define CPUID_PAE 0x00000040 /* has phys address extension */ #define CPUID_MCE 0x00000080 /* has machine check exception */ #define CPUID_CX8 0x00000100 /* has CMPXCHG8B instruction */ #define CPUID_APIC 0x00000200 /* has enabled APIC */ #define CPUID_SYS1 0x00000400 /* has SYSCALL/SYSRET inst. (Cyrix) */ #define CPUID_SEP 0x00000800 /* has SYSCALL/SYSRET inst. (AMD/Intel) */ #define CPUID_MTRR 0x00001000 /* has memory type range register */ #define CPUID_PGE 0x00002000 /* has page global extension */ #define CPUID_MCA 0x00004000 /* has machine check architecture */ #define CPUID_CMOV 0x00008000 /* has CMOVcc instruction */ #define CPUID_PAT 0x00010000 /* has page attribute table */ #define CPUID_PSE36 0x00020000 /* has 36bit page size extension */ #define CPUID_SER 0x00040000 /* has processor serial number */ #define CPUID_CFLUSH 0x00080000 /* CFLUSH insn supported */ #define CPUID_B20 0x00100000 /* reserved */ #define CPUID_DS 0x00200000 /* Debug Store */ #define CPUID_ACPI 0x00400000 /* ACPI performance modulation regs */ #define CPUID_MMX 0x00800000 /* has MMX instructions */ #define CPUID_FXSR 0x01000000 /* has FXRSTOR instruction (Intel) */ #define CPUID_EMMX 0x01000000 /* has extended MMX (Cyrix; obsolete) */ #define CPUID_SIMD 0x02000000 /* has SIMD instructions (Intel) */ #define CPUID_SIMD2 0x04000000 /* has SIMD instructions (Intel) #2 */ #define CPUID_SS 0x08000000 /* self-snoop */ #define CPUID_HTT 0x10000000 /* hyper-threading tech */ #define CPUID_TM 0x20000000 /* thermal monitor (TCC) */ #define CPUID_B30 0x40000000 /* reserved */ #define CPUID_SBF 0x80000000 /* signal break on FERR */ /* * Note: The 3DNOW flag does not really belong in this feature set since it is * returned by the cpuid instruction when called with 0x80000001 in eax rather * than 0x00000001, but cyrix3_cpu_setup() moves it to a reserved bit of the * feature set for simplicity */ #define CPUID_3DNOW 0x40000000 /* has 3DNow! instructions (AMD) */ #define CPUIDECX_EST 0x00000080 /* enhanced SpeedStep */ #define CPUIDECX_TM2 0x00000100 /* thermal monitor 2 */ #define CPUIDECX_CNXTID 0x00000400 /* Context ID */ /* * Model-specific registers for the i386 family */ #define MSR_P5_MC_ADDR 0x000 #define MSR_P5_MC_TYPE 0x001 #define MSR_TSC 0x010 #define P5MSR_CTRSEL 0x011 /* P5 only (trap on P6) */ #define P5MSR_CTR0 0x012 /* P5 only (trap on P6) */ #define P5MSR_CTR1 0x013 /* P5 only (trap on P6) */ #define MSR_APICBASE 0x01b #define MSR_EBL_CR_POWERON 0x02a #define MSR_TEST_CTL 0x033 #define MSR_BIOS_UPDT_TRIG 0x079 #define MSR_BBL_CR_D0 0x088 /* PII+ only */ #define MSR_BBL_CR_D1 0x089 /* PII+ only */ #define MSR_BBL_CR_D2 0x08a /* PII+ only */ #define MSR_BIOS_SIGN 0x08b #define P6MSR_CTR0 0x0c1 #define P6MSR_CTR1 0x0c2 #define MSR_MTRRcap 0x0fe #define MSR_BBL_CR_ADDR 0x116 /* PII+ only */ #define MSR_BBL_CR_DECC 0x118 /* PII+ only */ #define MSR_BBL_CR_CTL 0x119 /* PII+ only */ #define MSR_BBL_CR_TRIG 0x11a /* PII+ only */ #define MSR_BBL_CR_BUSY 0x11b /* PII+ only */ #define MSR_BBL_CR_CTR3 0x11e /* PII+ only */ #define MSR_SYSENTER_CS 0x174 #define MSR_SYSENTER_ESP 0x175 #define MSR_SYSENTER_EIP 0x176 #define MSR_MCG_CAP 0x179 #define MSR_MCG_STATUS 0x17a #define MSR_MCG_CTL 0x17b #define P6MSR_CTRSEL0 0x186 #define P6MSR_CTRSEL1 0x187 #define MSR_DEBUGCTLMSR 0x1d9 #define MSR_LASTBRANCHFROMIP 0x1db #define MSR_LASTBRANCHTOIP 0x1dc #define MSR_LASTINTFROMIP 0x1dd #define MSR_LASTINTTOIP 0x1de #define MSR_ROB_CR_BKUPTMPDR6 0x1e0 #define MSR_MTRRVarBase 0x200 #define MSR_MTRRphysMask0 0x201 #define MSR_MTRRphysBase1 0x202 #define MSR_MTRRphysMask1 0x203 #define MSR_MTRRphysBase2 0x204 #define MSR_MTRRphysMask2 0x205 #define MSR_MTRRphysBase3 0x206 #define MSR_MTRRphysMask3 0x207 #define MSR_MTRRphysBase4 0x208 #define MSR_MTRRphysMask4 0x209 #define MSR_MTRRphysBase5 0x20a #define MSR_MTRRphysMask5 0x20b #define MSR_MTRRphysBase6 0x20c #define MSR_MTRRphysMask6 0x20d #define MSR_MTRRphysBase7 0x20e #define MSR_MTRRphysMask7 0x20f #define MSR_MTRR64kBase 0x250 #define MSR_MTRR16kBase 0x258 #define MSR_MTRRfix16K_A0000 0x259 #define MSR_MTRR4kBase 0x268 #define MSR_MTRRfix4K_C8000 0x269 #define MSR_MTRRfix4K_D0000 0x26a #define MSR_MTRRfix4K_D8000 0x26b #define MSR_MTRRfix4K_E0000 0x26c #define MSR_MTRRfix4K_E8000 0x26d #define MSR_MTRRfix4K_F0000 0x26e #define MSR_MTRRfix4K_F8000 0x26f #define MSR_MTRRdefType 0x2ff #define MSR_MC0_CTL 0x400 #define MSR_MC0_STATUS 0x401 #define MSR_MC0_ADDR 0x402 #define MSR_MC0_MISC 0x403 #define MSR_MC1_CTL 0x404 #define MSR_MC1_STATUS 0x405 #define MSR_MC1_ADDR 0x406 #define MSR_MC1_MISC 0x407 #define MSR_MC2_CTL 0x408 #define MSR_MC2_STATUS 0x409 #define MSR_MC2_ADDR 0x40a #define MSR_MC2_MISC 0x40b #define MSR_MC4_CTL 0x40c #define MSR_MC4_STATUS 0x40d #define MSR_MC4_ADDR 0x40e #define MSR_MC4_MISC 0x40f #define MSR_MC3_CTL 0x410 #define MSR_MC3_STATUS 0x411 #define MSR_MC3_ADDR 0x412 #define MSR_MC3_MISC 0x413 /* * Constants related to MTRRs */ #define MTRR_N64K 8 /* numbers of fixed-size entries */ #define MTRR_N16K 16 #define MTRR_N4K 64 /* * the following four 3-byte registers control the non-cacheable regions. * These registers must be written as three separate bytes. * * NCRx+0: A31-A24 of starting address * NCRx+1: A23-A16 of starting address * NCRx+2: A15-A12 of starting address | NCR_SIZE_xx. * * The non-cacheable region's starting address must be aligned to the * size indicated by the NCR_SIZE_xx field. */ #define NCR1 0xc4 #define NCR2 0xc7 #define NCR3 0xca #define NCR4 0xcd #define NCR_SIZE_0K 0 #define NCR_SIZE_4K 1 #define NCR_SIZE_8K 2 #define NCR_SIZE_16K 3 #define NCR_SIZE_32K 4 #define NCR_SIZE_64K 5 #define NCR_SIZE_128K 6 #define NCR_SIZE_256K 7 #define NCR_SIZE_512K 8 #define NCR_SIZE_1M 9 #define NCR_SIZE_2M 10 #define NCR_SIZE_4M 11 #define NCR_SIZE_8M 12 #define NCR_SIZE_16M 13 #define NCR_SIZE_32M 14 #define NCR_SIZE_4G 15 /* * Performance monitor events. * * Note that 586-class and 686-class CPUs have different performance * monitors available, and they are accessed differently: * * 686-class: `rdpmc' instruction * 586-class: `rdmsr' instruction, CESR MSR * * The descriptions of these events are too lenghy to include here. * See Appendix A of "Intel Architecture Software Developer's * Manual, Volume 3: System Programming" for more information. */ /* * 586-class CESR MSR format. Lower 16 bits is CTR0, upper 16 bits * is CTR1. */ #define PMC5_CESR_EVENT 0x003f #define PMC5_CESR_OS 0x0040 #define PMC5_CESR_USR 0x0080 #define PMC5_CESR_E 0x0100 #define PMC5_CESR_P 0x0200 /* * 686-class Event Selector MSR format. */ #define PMC6_EVTSEL_EVENT 0x000000ff #define PMC6_EVTSEL_UNIT 0x0000ff00 #define PMC6_EVTSEL_UNIT_SHIFT 8 #define PMC6_EVTSEL_USR (1 << 16) #define PMC6_EVTSEL_OS (1 << 17) #define PMC6_EVTSEL_E (1 << 18) #define PMC6_EVTSEL_PC (1 << 19) #define PMC6_EVTSEL_INT (1 << 20) #define PMC6_EVTSEL_EN (1 << 22) /* PerfEvtSel0 only */ #define PMC6_EVTSEL_INV (1 << 23) #define PMC6_EVTSEL_COUNTER_MASK 0xff000000 #define PMC6_EVTSEL_COUNTER_MASK_SHIFT 24 /* Data Cache Unit */ #define PMC6_DATA_MEM_REFS 0x43 #define PMC6_DCU_LINES_IN 0x45 #define PMC6_DCU_M_LINES_IN 0x46 #define PMC6_DCU_M_LINES_OUT 0x47 #define PMC6_DCU_MISS_OUTSTANDING 0x48 /* Instruction Fetch Unit */ #define PMC6_IFU_IFETCH 0x80 #define PMC6_IFU_IFETCH_MISS 0x81 #define PMC6_ITLB_MISS 0x85 #define PMC6_IFU_MEM_STALL 0x86 #define PMC6_ILD_STALL 0x87 /* L2 Cache */ #define PMC6_L2_IFETCH 0x28 #define PMC6_L2_LD 0x29 #define PMC6_L2_ST 0x2a #define PMC6_L2_LINES_IN 0x24 #define PMC6_L2_LINES_OUT 0x26 #define PMC6_L2_M_LINES_INM 0x25 #define PMC6_L2_M_LINES_OUTM 0x27 #define PMC6_L2_RQSTS 0x2e #define PMC6_L2_ADS 0x21 #define PMC6_L2_DBUS_BUSY 0x22 #define PMC6_L2_DBUS_BUSY_RD 0x23 /* External Bus Logic */ #define PMC6_BUS_DRDY_CLOCKS 0x62 #define PMC6_BUS_LOCK_CLOCKS 0x63 #define PMC6_BUS_REQ_OUTSTANDING 0x60 #define PMC6_BUS_TRAN_BRD 0x65 #define PMC6_BUS_TRAN_RFO 0x66 #define PMC6_BUS_TRANS_WB 0x67 #define PMC6_BUS_TRAN_IFETCH 0x68 #define PMC6_BUS_TRAN_INVAL 0x69 #define PMC6_BUS_TRAN_PWR 0x6a #define PMC6_BUS_TRANS_P 0x6b #define PMC6_BUS_TRANS_IO 0x6c #define PMC6_BUS_TRAN_DEF 0x6d #define PMC6_BUS_TRAN_BURST 0x6e #define PMC6_BUS_TRAN_ANY 0x70 #define PMC6_BUS_TRAN_MEM 0x6f #define PMC6_BUS_DATA_RCV 0x64 #define PMC6_BUS_BNR_DRV 0x61 #define PMC6_BUS_HIT_DRV 0x7a #define PMC6_BUS_HITM_DRDV 0x7b #define PMC6_BUS_SNOOP_STALL 0x7e /* Floating Point Unit */ #define PMC6_FLOPS 0xc1 #define PMC6_FP_COMP_OPS_EXE 0x10 #define PMC6_FP_ASSIST 0x11 #define PMC6_MUL 0x12 #define PMC6_DIV 0x12 #define PMC6_CYCLES_DIV_BUSY 0x14 /* Memory Ordering */ #define PMC6_LD_BLOCKS 0x03 #define PMC6_SB_DRAINS 0x04 #define PMC6_MISALIGN_MEM_REF 0x05 #define PMC6_EMON_KNI_PREF_DISPATCHED 0x07 /* P-III only */ #define PMC6_EMON_KNI_PREF_MISS 0x4b /* P-III only */ /* Instruction Decoding and Retirement */ #define PMC6_INST_RETIRED 0xc0 #define PMC6_UOPS_RETIRED 0xc2 #define PMC6_INST_DECODED 0xd0 #define PMC6_EMON_KNI_INST_RETIRED 0xd8 #define PMC6_EMON_KNI_COMP_INST_RET 0xd9 /* Interrupts */ #define PMC6_HW_INT_RX 0xc8 #define PMC6_CYCLES_INT_MASKED 0xc6 #define PMC6_CYCLES_INT_PENDING_AND_MASKED 0xc7 /* Branches */ #define PMC6_BR_INST_RETIRED 0xc4 #define PMC6_BR_MISS_PRED_RETIRED 0xc5 #define PMC6_BR_TAKEN_RETIRED 0xc9 #define PMC6_BR_MISS_PRED_TAKEN_RET 0xca #define PMC6_BR_INST_DECODED 0xe0 #define PMC6_BTB_MISSES 0xe2 #define PMC6_BR_BOGUS 0xe4 #define PMC6_BACLEARS 0xe6 /* Stalls */ #define PMC6_RESOURCE_STALLS 0xa2 #define PMC6_PARTIAL_RAT_STALLS 0xd2 /* Segment Register Loads */ #define PMC6_SEGMENT_REG_LOADS 0x06 /* Clocks */ #define PMC6_CPU_CLK_UNHALTED 0x79 /* MMX Unit */ #define PMC6_MMX_INSTR_EXEC 0xb0 /* Celeron, P-II, P-IIX only */ #define PMC6_MMX_SAT_INSTR_EXEC 0xb1 /* P-II and P-III only */ #define PMC6_MMX_UOPS_EXEC 0xb2 /* P-II and P-III only */ #define PMC6_MMX_INSTR_TYPE_EXEC 0xb3 /* P-II and P-III only */ #define PMC6_FP_MMX_TRANS 0xcc /* P-II and P-III only */ #define PMC6_MMX_ASSIST 0xcd /* P-II and P-III only */ #define PMC6_MMX_INSTR_RET 0xc3 /* P-II only */ /* Segment Register Renaming */ #define PMC6_SEG_RENAME_STALLS 0xd4 /* P-II and P-III only */ #define PMC6_SEG_REG_RENAMES 0xd5 /* P-II and P-III only */ #define PMC6_RET_SEG_RENAMES 0xd6 /* P-II and P-III only */