| #ifndef _ASM_IA64_KREGS_H |
| #define _ASM_IA64_KREGS_H |
| |
| /* |
| * Copyright (C) 2001-2002 Hewlett-Packard Co |
| * David Mosberger-Tang <davidm@hpl.hp.com> |
| */ |
| /* |
| * This file defines the kernel register usage convention used by Linux/ia64. |
| */ |
| |
| /* |
| * Kernel registers: |
| */ |
| #define IA64_KR_IO_BASE 0 /* ar.k0: legacy I/O base address */ |
| #define IA64_KR_TSSD 1 /* ar.k1: IVE uses this as the TSSD */ |
| #define IA64_KR_PER_CPU_DATA 3 /* ar.k3: physical per-CPU base */ |
| #define IA64_KR_CURRENT_STACK 4 /* ar.k4: what's mapped in IA64_TR_CURRENT_STACK */ |
| #define IA64_KR_FPU_OWNER 5 /* ar.k5: fpu-owner (UP only, at the moment) */ |
| #define IA64_KR_CURRENT 6 /* ar.k6: "current" task pointer */ |
| #define IA64_KR_PT_BASE 7 /* ar.k7: page table base address (physical) */ |
| |
| #define _IA64_KR_PASTE(x,y) x##y |
| #define _IA64_KR_PREFIX(n) _IA64_KR_PASTE(ar.k, n) |
| #define IA64_KR(n) _IA64_KR_PREFIX(IA64_KR_##n) |
| |
| /* |
| * Translation registers: |
| */ |
| #define IA64_TR_KERNEL 0 /* itr0, dtr0: maps kernel image (code & data) */ |
| #define IA64_TR_PALCODE 1 /* itr1: maps PALcode as required by EFI */ |
| #define IA64_TR_CURRENT_STACK 1 /* dtr1: maps kernel's memory- & register-stacks */ |
| |
| /* Processor status register bits: */ |
| #define IA64_PSR_BE_BIT 1 |
| #define IA64_PSR_UP_BIT 2 |
| #define IA64_PSR_AC_BIT 3 |
| #define IA64_PSR_MFL_BIT 4 |
| #define IA64_PSR_MFH_BIT 5 |
| #define IA64_PSR_IC_BIT 13 |
| #define IA64_PSR_I_BIT 14 |
| #define IA64_PSR_PK_BIT 15 |
| #define IA64_PSR_DT_BIT 17 |
| #define IA64_PSR_DFL_BIT 18 |
| #define IA64_PSR_DFH_BIT 19 |
| #define IA64_PSR_SP_BIT 20 |
| #define IA64_PSR_PP_BIT 21 |
| #define IA64_PSR_DI_BIT 22 |
| #define IA64_PSR_SI_BIT 23 |
| #define IA64_PSR_DB_BIT 24 |
| #define IA64_PSR_LP_BIT 25 |
| #define IA64_PSR_TB_BIT 26 |
| #define IA64_PSR_RT_BIT 27 |
| /* The following are not affected by save_flags()/restore_flags(): */ |
| #define IA64_PSR_CPL0_BIT 32 |
| #define IA64_PSR_CPL1_BIT 33 |
| #define IA64_PSR_IS_BIT 34 |
| #define IA64_PSR_MC_BIT 35 |
| #define IA64_PSR_IT_BIT 36 |
| #define IA64_PSR_ID_BIT 37 |
| #define IA64_PSR_DA_BIT 38 |
| #define IA64_PSR_DD_BIT 39 |
| #define IA64_PSR_SS_BIT 40 |
| #define IA64_PSR_RI_BIT 41 |
| #define IA64_PSR_ED_BIT 43 |
| #define IA64_PSR_BN_BIT 44 |
| #define IA64_PSR_IA_BIT 45 |
| |
| /* A mask of PSR bits that we generally don't want to inherit across a clone2() or an |
| execve(). Only list flags here that need to be cleared/set for BOTH clone2() and |
| execve(). */ |
| #define IA64_PSR_BITS_TO_CLEAR (IA64_PSR_MFL | IA64_PSR_MFH | IA64_PSR_DB | IA64_PSR_LP | \ |
| IA64_PSR_TB | IA64_PSR_ID | IA64_PSR_DA | IA64_PSR_DD | \ |
| IA64_PSR_SS | IA64_PSR_ED | IA64_PSR_IA) |
| #define IA64_PSR_BITS_TO_SET (IA64_PSR_DFH | IA64_PSR_SP) |
| |
| #define IA64_PSR_BE (__IA64_UL(1) << IA64_PSR_BE_BIT) |
| #define IA64_PSR_UP (__IA64_UL(1) << IA64_PSR_UP_BIT) |
| #define IA64_PSR_AC (__IA64_UL(1) << IA64_PSR_AC_BIT) |
| #define IA64_PSR_MFL (__IA64_UL(1) << IA64_PSR_MFL_BIT) |
| #define IA64_PSR_MFH (__IA64_UL(1) << IA64_PSR_MFH_BIT) |
| #define IA64_PSR_IC (__IA64_UL(1) << IA64_PSR_IC_BIT) |
| #define IA64_PSR_I (__IA64_UL(1) << IA64_PSR_I_BIT) |
| #define IA64_PSR_PK (__IA64_UL(1) << IA64_PSR_PK_BIT) |
| #define IA64_PSR_DT (__IA64_UL(1) << IA64_PSR_DT_BIT) |
| #define IA64_PSR_DFL (__IA64_UL(1) << IA64_PSR_DFL_BIT) |
| #define IA64_PSR_DFH (__IA64_UL(1) << IA64_PSR_DFH_BIT) |
| #define IA64_PSR_SP (__IA64_UL(1) << IA64_PSR_SP_BIT) |
| #define IA64_PSR_PP (__IA64_UL(1) << IA64_PSR_PP_BIT) |
| #define IA64_PSR_DI (__IA64_UL(1) << IA64_PSR_DI_BIT) |
| #define IA64_PSR_SI (__IA64_UL(1) << IA64_PSR_SI_BIT) |
| #define IA64_PSR_DB (__IA64_UL(1) << IA64_PSR_DB_BIT) |
| #define IA64_PSR_LP (__IA64_UL(1) << IA64_PSR_LP_BIT) |
| #define IA64_PSR_TB (__IA64_UL(1) << IA64_PSR_TB_BIT) |
| #define IA64_PSR_RT (__IA64_UL(1) << IA64_PSR_RT_BIT) |
| /* The following are not affected by save_flags()/restore_flags(): */ |
| #define IA64_PSR_CPL (__IA64_UL(3) << IA64_PSR_CPL0_BIT) |
| #define IA64_PSR_IS (__IA64_UL(1) << IA64_PSR_IS_BIT) |
| #define IA64_PSR_MC (__IA64_UL(1) << IA64_PSR_MC_BIT) |
| #define IA64_PSR_IT (__IA64_UL(1) << IA64_PSR_IT_BIT) |
| #define IA64_PSR_ID (__IA64_UL(1) << IA64_PSR_ID_BIT) |
| #define IA64_PSR_DA (__IA64_UL(1) << IA64_PSR_DA_BIT) |
| #define IA64_PSR_DD (__IA64_UL(1) << IA64_PSR_DD_BIT) |
| #define IA64_PSR_SS (__IA64_UL(1) << IA64_PSR_SS_BIT) |
| #define IA64_PSR_RI (__IA64_UL(3) << IA64_PSR_RI_BIT) |
| #define IA64_PSR_ED (__IA64_UL(1) << IA64_PSR_ED_BIT) |
| #define IA64_PSR_BN (__IA64_UL(1) << IA64_PSR_BN_BIT) |
| #define IA64_PSR_IA (__IA64_UL(1) << IA64_PSR_IA_BIT) |
| |
| /* User mask bits: */ |
| #define IA64_PSR_UM (IA64_PSR_BE | IA64_PSR_UP | IA64_PSR_AC | IA64_PSR_MFL | IA64_PSR_MFH) |
| |
| /* Default Control Register */ |
| #define IA64_DCR_PP_BIT 0 /* privileged performance monitor default */ |
| #define IA64_DCR_BE_BIT 1 /* big-endian default */ |
| #define IA64_DCR_LC_BIT 2 /* ia32 lock-check enable */ |
| #define IA64_DCR_DM_BIT 8 /* defer TLB miss faults */ |
| #define IA64_DCR_DP_BIT 9 /* defer page-not-present faults */ |
| #define IA64_DCR_DK_BIT 10 /* defer key miss faults */ |
| #define IA64_DCR_DX_BIT 11 /* defer key permission faults */ |
| #define IA64_DCR_DR_BIT 12 /* defer access right faults */ |
| #define IA64_DCR_DA_BIT 13 /* defer access bit faults */ |
| #define IA64_DCR_DD_BIT 14 /* defer debug faults */ |
| |
| #define IA64_DCR_PP (__IA64_UL(1) << IA64_DCR_PP_BIT) |
| #define IA64_DCR_BE (__IA64_UL(1) << IA64_DCR_BE_BIT) |
| #define IA64_DCR_LC (__IA64_UL(1) << IA64_DCR_LC_BIT) |
| #define IA64_DCR_DM (__IA64_UL(1) << IA64_DCR_DM_BIT) |
| #define IA64_DCR_DP (__IA64_UL(1) << IA64_DCR_DP_BIT) |
| #define IA64_DCR_DK (__IA64_UL(1) << IA64_DCR_DK_BIT) |
| #define IA64_DCR_DX (__IA64_UL(1) << IA64_DCR_DX_BIT) |
| #define IA64_DCR_DR (__IA64_UL(1) << IA64_DCR_DR_BIT) |
| #define IA64_DCR_DA (__IA64_UL(1) << IA64_DCR_DA_BIT) |
| #define IA64_DCR_DD (__IA64_UL(1) << IA64_DCR_DD_BIT) |
| |
| /* Interrupt Status Register */ |
| #define IA64_ISR_X_BIT 32 /* execute access */ |
| #define IA64_ISR_W_BIT 33 /* write access */ |
| #define IA64_ISR_R_BIT 34 /* read access */ |
| #define IA64_ISR_NA_BIT 35 /* non-access */ |
| #define IA64_ISR_SP_BIT 36 /* speculative load exception */ |
| #define IA64_ISR_RS_BIT 37 /* mandatory register-stack exception */ |
| #define IA64_ISR_IR_BIT 38 /* invalid register frame exception */ |
| #define IA64_ISR_CODE_MASK 0xf |
| |
| #define IA64_ISR_X (__IA64_UL(1) << IA64_ISR_X_BIT) |
| #define IA64_ISR_W (__IA64_UL(1) << IA64_ISR_W_BIT) |
| #define IA64_ISR_R (__IA64_UL(1) << IA64_ISR_R_BIT) |
| #define IA64_ISR_NA (__IA64_UL(1) << IA64_ISR_NA_BIT) |
| #define IA64_ISR_SP (__IA64_UL(1) << IA64_ISR_SP_BIT) |
| #define IA64_ISR_RS (__IA64_UL(1) << IA64_ISR_RS_BIT) |
| #define IA64_ISR_IR (__IA64_UL(1) << IA64_ISR_IR_BIT) |
| |
| /* ISR code field for non-access instructions */ |
| #define IA64_ISR_CODE_TPA 0 |
| #define IA64_ISR_CODE_FC 1 |
| #define IA64_ISR_CODE_PROBE 2 |
| #define IA64_ISR_CODE_TAK 3 |
| #define IA64_ISR_CODE_LFETCH 4 |
| #define IA64_ISR_CODE_PROBEF 5 |
| |
| #endif /* _ASM_IA64_kREGS_H */ |
