1#ifndef _ASM_IA64_KREGS_H 2#define _ASM_IA64_KREGS_H 3 4/* 5 * Copyright (C) 2001-2002 Hewlett-Packard Co 6 * David Mosberger-Tang <davidm@hpl.hp.com> 7 */ 8/* 9 * This file defines the kernel register usage convention used by Linux/ia64. 10 */ 11 12/* 13 * Kernel registers: 14 */ 15#define IA64_KR_IO_BASE 0 /* ar.k0: legacy I/O base address */ 16#define IA64_KR_TSSD 1 /* ar.k1: IVE uses this as the TSSD */ 17#define IA64_KR_CURRENT_STACK 4 /* ar.k4: what's mapped in IA64_TR_CURRENT_STACK */ 18#define IA64_KR_FPU_OWNER 5 /* ar.k5: fpu-owner (UP only, at the moment) */ 19#define IA64_KR_CURRENT 6 /* ar.k6: "current" task pointer */ 20#define IA64_KR_PT_BASE 7 /* ar.k7: page table base address (physical) */ 21 22#define _IA64_KR_PASTE(x,y) x##y 23#define _IA64_KR_PREFIX(n) _IA64_KR_PASTE(ar.k, n) 24#define IA64_KR(n) _IA64_KR_PREFIX(IA64_KR_##n) 25 26/* 27 * Translation registers: 28 */ 29#define IA64_TR_KERNEL 0 /* itr0, dtr0: maps kernel image (code & data) */ 30#define IA64_TR_PALCODE 1 /* itr1: maps PALcode as required by EFI */ 31#define IA64_TR_PERCPU_DATA 1 /* dtr1: percpu data */ 32#define IA64_TR_CURRENT_STACK 2 /* dtr2: maps kernel's memory- & register-stacks */ 33 34/* Processor status register bits: */ 35#define IA64_PSR_BE_BIT 1 36#define IA64_PSR_UP_BIT 2 37#define IA64_PSR_AC_BIT 3 38#define IA64_PSR_MFL_BIT 4 39#define IA64_PSR_MFH_BIT 5 40#define IA64_PSR_IC_BIT 13 41#define IA64_PSR_I_BIT 14 42#define IA64_PSR_PK_BIT 15 43#define IA64_PSR_DT_BIT 17 44#define IA64_PSR_DFL_BIT 18 45#define IA64_PSR_DFH_BIT 19 46#define IA64_PSR_SP_BIT 20 47#define IA64_PSR_PP_BIT 21 48#define IA64_PSR_DI_BIT 22 49#define IA64_PSR_SI_BIT 23 50#define IA64_PSR_DB_BIT 24 51#define IA64_PSR_LP_BIT 25 52#define IA64_PSR_TB_BIT 26 53#define IA64_PSR_RT_BIT 27 54/* The following are not affected by save_flags()/restore_flags(): */ 55#define IA64_PSR_CPL0_BIT 32 56#define IA64_PSR_CPL1_BIT 33 57#define IA64_PSR_IS_BIT 34 58#define IA64_PSR_MC_BIT 35 59#define IA64_PSR_IT_BIT 36 60#define IA64_PSR_ID_BIT 37 61#define IA64_PSR_DA_BIT 38 62#define IA64_PSR_DD_BIT 39 63#define IA64_PSR_SS_BIT 40 64#define IA64_PSR_RI_BIT 41 65#define IA64_PSR_ED_BIT 43 66#define IA64_PSR_BN_BIT 44 67#define IA64_PSR_IA_BIT 45 68 69#define IA64_PSR_BE (__IA64_UL(1) << IA64_PSR_BE_BIT) 70#define IA64_PSR_UP (__IA64_UL(1) << IA64_PSR_UP_BIT) 71#define IA64_PSR_AC (__IA64_UL(1) << IA64_PSR_AC_BIT) 72#define IA64_PSR_MFL (__IA64_UL(1) << IA64_PSR_MFL_BIT) 73#define IA64_PSR_MFH (__IA64_UL(1) << IA64_PSR_MFH_BIT) 74#define IA64_PSR_IC (__IA64_UL(1) << IA64_PSR_IC_BIT) 75#define IA64_PSR_I (__IA64_UL(1) << IA64_PSR_I_BIT) 76#define IA64_PSR_PK (__IA64_UL(1) << IA64_PSR_PK_BIT) 77#define IA64_PSR_DT (__IA64_UL(1) << IA64_PSR_DT_BIT) 78#define IA64_PSR_DFL (__IA64_UL(1) << IA64_PSR_DFL_BIT) 79#define IA64_PSR_DFH (__IA64_UL(1) << IA64_PSR_DFH_BIT) 80#define IA64_PSR_SP (__IA64_UL(1) << IA64_PSR_SP_BIT) 81#define IA64_PSR_PP (__IA64_UL(1) << IA64_PSR_PP_BIT) 82#define IA64_PSR_DI (__IA64_UL(1) << IA64_PSR_DI_BIT) 83#define IA64_PSR_SI (__IA64_UL(1) << IA64_PSR_SI_BIT) 84#define IA64_PSR_DB (__IA64_UL(1) << IA64_PSR_DB_BIT) 85#define IA64_PSR_LP (__IA64_UL(1) << IA64_PSR_LP_BIT) 86#define IA64_PSR_TB (__IA64_UL(1) << IA64_PSR_TB_BIT) 87#define IA64_PSR_RT (__IA64_UL(1) << IA64_PSR_RT_BIT) 88/* The following are not affected by save_flags()/restore_flags(): */ 89#define IA64_PSR_CPL (__IA64_UL(3) << IA64_PSR_CPL0_BIT) 90#define IA64_PSR_IS (__IA64_UL(1) << IA64_PSR_IS_BIT) 91#define IA64_PSR_MC (__IA64_UL(1) << IA64_PSR_MC_BIT) 92#define IA64_PSR_IT (__IA64_UL(1) << IA64_PSR_IT_BIT) 93#define IA64_PSR_ID (__IA64_UL(1) << IA64_PSR_ID_BIT) 94#define IA64_PSR_DA (__IA64_UL(1) << IA64_PSR_DA_BIT) 95#define IA64_PSR_DD (__IA64_UL(1) << IA64_PSR_DD_BIT) 96#define IA64_PSR_SS (__IA64_UL(1) << IA64_PSR_SS_BIT) 97#define IA64_PSR_RI (__IA64_UL(3) << IA64_PSR_RI_BIT) 98#define IA64_PSR_ED (__IA64_UL(1) << IA64_PSR_ED_BIT) 99#define IA64_PSR_BN (__IA64_UL(1) << IA64_PSR_BN_BIT) 100#define IA64_PSR_IA (__IA64_UL(1) << IA64_PSR_IA_BIT) 101 102/* A mask of PSR bits that we generally don't want to inherit across a clone2() or an 103 execve(). Only list flags here that need to be cleared/set for BOTH clone2() and 104 execve(). */ 105#define IA64_PSR_BITS_TO_CLEAR (IA64_PSR_MFL | IA64_PSR_MFH | IA64_PSR_DB | IA64_PSR_LP | \ 106 IA64_PSR_TB | IA64_PSR_ID | IA64_PSR_DA | IA64_PSR_DD | \ 107 IA64_PSR_SS | IA64_PSR_ED | IA64_PSR_IA) 108#define IA64_PSR_BITS_TO_SET (IA64_PSR_DFH) 109 110/* User mask bits: */ 111#define IA64_PSR_UM (IA64_PSR_BE | IA64_PSR_UP | IA64_PSR_AC | IA64_PSR_MFL | IA64_PSR_MFH) 112 113/* Default Control Register */ 114#define IA64_DCR_PP_BIT 0 /* privileged performance monitor default */ 115#define IA64_DCR_BE_BIT 1 /* big-endian default */ 116#define IA64_DCR_LC_BIT 2 /* ia32 lock-check enable */ 117#define IA64_DCR_DM_BIT 8 /* defer TLB miss faults */ 118#define IA64_DCR_DP_BIT 9 /* defer page-not-present faults */ 119#define IA64_DCR_DK_BIT 10 /* defer key miss faults */ 120#define IA64_DCR_DX_BIT 11 /* defer key permission faults */ 121#define IA64_DCR_DR_BIT 12 /* defer access right faults */ 122#define IA64_DCR_DA_BIT 13 /* defer access bit faults */ 123#define IA64_DCR_DD_BIT 14 /* defer debug faults */ 124 125#define IA64_DCR_PP (__IA64_UL(1) << IA64_DCR_PP_BIT) 126#define IA64_DCR_BE (__IA64_UL(1) << IA64_DCR_BE_BIT) 127#define IA64_DCR_LC (__IA64_UL(1) << IA64_DCR_LC_BIT) 128#define IA64_DCR_DM (__IA64_UL(1) << IA64_DCR_DM_BIT) 129#define IA64_DCR_DP (__IA64_UL(1) << IA64_DCR_DP_BIT) 130#define IA64_DCR_DK (__IA64_UL(1) << IA64_DCR_DK_BIT) 131#define IA64_DCR_DX (__IA64_UL(1) << IA64_DCR_DX_BIT) 132#define IA64_DCR_DR (__IA64_UL(1) << IA64_DCR_DR_BIT) 133#define IA64_DCR_DA (__IA64_UL(1) << IA64_DCR_DA_BIT) 134#define IA64_DCR_DD (__IA64_UL(1) << IA64_DCR_DD_BIT) 135 136/* Interrupt Status Register */ 137#define IA64_ISR_X_BIT 32 /* execute access */ 138#define IA64_ISR_W_BIT 33 /* write access */ 139#define IA64_ISR_R_BIT 34 /* read access */ 140#define IA64_ISR_NA_BIT 35 /* non-access */ 141#define IA64_ISR_SP_BIT 36 /* speculative load exception */ 142#define IA64_ISR_RS_BIT 37 /* mandatory register-stack exception */ 143#define IA64_ISR_IR_BIT 38 /* invalid register frame exception */ 144#define IA64_ISR_CODE_MASK 0xf 145 146#define IA64_ISR_X (__IA64_UL(1) << IA64_ISR_X_BIT) 147#define IA64_ISR_W (__IA64_UL(1) << IA64_ISR_W_BIT) 148#define IA64_ISR_R (__IA64_UL(1) << IA64_ISR_R_BIT) 149#define IA64_ISR_NA (__IA64_UL(1) << IA64_ISR_NA_BIT) 150#define IA64_ISR_SP (__IA64_UL(1) << IA64_ISR_SP_BIT) 151#define IA64_ISR_RS (__IA64_UL(1) << IA64_ISR_RS_BIT) 152#define IA64_ISR_IR (__IA64_UL(1) << IA64_ISR_IR_BIT) 153 154/* ISR code field for non-access instructions */ 155#define IA64_ISR_CODE_TPA 0 156#define IA64_ISR_CODE_FC 1 157#define IA64_ISR_CODE_PROBE 2 158#define IA64_ISR_CODE_TAK 3 159#define IA64_ISR_CODE_LFETCH 4 160#define IA64_ISR_CODE_PROBEF 5 161 162#endif /* _ASM_IA64_KREGS_H */ 163