167 lines
6.7 KiB
C
167 lines
6.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_IA64_KREGS_H
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#define _ASM_IA64_KREGS_H
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/*
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* Copyright (C) 2001-2002 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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/*
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* This file defines the kernel register usage convention used by Linux/ia64.
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*/
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/*
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* Kernel registers:
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*/
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#define IA64_KR_IO_BASE 0 /* ar.k0: legacy I/O base address */
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#define IA64_KR_TSSD 1 /* ar.k1: IVE uses this as the TSSD */
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#define IA64_KR_PER_CPU_DATA 3 /* ar.k3: physical per-CPU base */
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#define IA64_KR_CURRENT_STACK 4 /* ar.k4: what's mapped in IA64_TR_CURRENT_STACK */
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#define IA64_KR_FPU_OWNER 5 /* ar.k5: fpu-owner (UP only, at the moment) */
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#define IA64_KR_CURRENT 6 /* ar.k6: "current" task pointer */
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#define IA64_KR_PT_BASE 7 /* ar.k7: page table base address (physical) */
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#define _IA64_KR_PASTE(x,y) x##y
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#define _IA64_KR_PREFIX(n) _IA64_KR_PASTE(ar.k, n)
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#define IA64_KR(n) _IA64_KR_PREFIX(IA64_KR_##n)
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/*
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* Translation registers:
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*/
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#define IA64_TR_KERNEL 0 /* itr0, dtr0: maps kernel image (code & data) */
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#define IA64_TR_PALCODE 1 /* itr1: maps PALcode as required by EFI */
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#define IA64_TR_CURRENT_STACK 1 /* dtr1: maps kernel's memory- & register-stacks */
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#define IA64_TR_ALLOC_BASE 2 /* itr&dtr: Base of dynamic TR resource*/
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#define IA64_TR_ALLOC_MAX 64 /* Max number for dynamic use*/
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/* Processor status register bits: */
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#define IA64_PSR_BE_BIT 1
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#define IA64_PSR_UP_BIT 2
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#define IA64_PSR_AC_BIT 3
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#define IA64_PSR_MFL_BIT 4
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#define IA64_PSR_MFH_BIT 5
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#define IA64_PSR_IC_BIT 13
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#define IA64_PSR_I_BIT 14
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#define IA64_PSR_PK_BIT 15
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#define IA64_PSR_DT_BIT 17
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#define IA64_PSR_DFL_BIT 18
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#define IA64_PSR_DFH_BIT 19
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#define IA64_PSR_SP_BIT 20
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#define IA64_PSR_PP_BIT 21
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#define IA64_PSR_DI_BIT 22
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#define IA64_PSR_SI_BIT 23
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#define IA64_PSR_DB_BIT 24
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#define IA64_PSR_LP_BIT 25
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#define IA64_PSR_TB_BIT 26
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#define IA64_PSR_RT_BIT 27
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/* The following are not affected by save_flags()/restore_flags(): */
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#define IA64_PSR_CPL0_BIT 32
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#define IA64_PSR_CPL1_BIT 33
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#define IA64_PSR_IS_BIT 34
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#define IA64_PSR_MC_BIT 35
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#define IA64_PSR_IT_BIT 36
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#define IA64_PSR_ID_BIT 37
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#define IA64_PSR_DA_BIT 38
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#define IA64_PSR_DD_BIT 39
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#define IA64_PSR_SS_BIT 40
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#define IA64_PSR_RI_BIT 41
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#define IA64_PSR_ED_BIT 43
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#define IA64_PSR_BN_BIT 44
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#define IA64_PSR_IA_BIT 45
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/* A mask of PSR bits that we generally don't want to inherit across a clone2() or an
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execve(). Only list flags here that need to be cleared/set for BOTH clone2() and
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execve(). */
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#define IA64_PSR_BITS_TO_CLEAR (IA64_PSR_MFL | IA64_PSR_MFH | IA64_PSR_DB | IA64_PSR_LP | \
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IA64_PSR_TB | IA64_PSR_ID | IA64_PSR_DA | IA64_PSR_DD | \
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IA64_PSR_SS | IA64_PSR_ED | IA64_PSR_IA)
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#define IA64_PSR_BITS_TO_SET (IA64_PSR_DFH | IA64_PSR_SP)
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#define IA64_PSR_BE (__IA64_UL(1) << IA64_PSR_BE_BIT)
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#define IA64_PSR_UP (__IA64_UL(1) << IA64_PSR_UP_BIT)
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#define IA64_PSR_AC (__IA64_UL(1) << IA64_PSR_AC_BIT)
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#define IA64_PSR_MFL (__IA64_UL(1) << IA64_PSR_MFL_BIT)
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#define IA64_PSR_MFH (__IA64_UL(1) << IA64_PSR_MFH_BIT)
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#define IA64_PSR_IC (__IA64_UL(1) << IA64_PSR_IC_BIT)
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#define IA64_PSR_I (__IA64_UL(1) << IA64_PSR_I_BIT)
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#define IA64_PSR_PK (__IA64_UL(1) << IA64_PSR_PK_BIT)
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#define IA64_PSR_DT (__IA64_UL(1) << IA64_PSR_DT_BIT)
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#define IA64_PSR_DFL (__IA64_UL(1) << IA64_PSR_DFL_BIT)
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#define IA64_PSR_DFH (__IA64_UL(1) << IA64_PSR_DFH_BIT)
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#define IA64_PSR_SP (__IA64_UL(1) << IA64_PSR_SP_BIT)
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#define IA64_PSR_PP (__IA64_UL(1) << IA64_PSR_PP_BIT)
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#define IA64_PSR_DI (__IA64_UL(1) << IA64_PSR_DI_BIT)
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#define IA64_PSR_SI (__IA64_UL(1) << IA64_PSR_SI_BIT)
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#define IA64_PSR_DB (__IA64_UL(1) << IA64_PSR_DB_BIT)
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#define IA64_PSR_LP (__IA64_UL(1) << IA64_PSR_LP_BIT)
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#define IA64_PSR_TB (__IA64_UL(1) << IA64_PSR_TB_BIT)
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#define IA64_PSR_RT (__IA64_UL(1) << IA64_PSR_RT_BIT)
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/* The following are not affected by save_flags()/restore_flags(): */
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#define IA64_PSR_CPL (__IA64_UL(3) << IA64_PSR_CPL0_BIT)
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#define IA64_PSR_IS (__IA64_UL(1) << IA64_PSR_IS_BIT)
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#define IA64_PSR_MC (__IA64_UL(1) << IA64_PSR_MC_BIT)
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#define IA64_PSR_IT (__IA64_UL(1) << IA64_PSR_IT_BIT)
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#define IA64_PSR_ID (__IA64_UL(1) << IA64_PSR_ID_BIT)
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#define IA64_PSR_DA (__IA64_UL(1) << IA64_PSR_DA_BIT)
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#define IA64_PSR_DD (__IA64_UL(1) << IA64_PSR_DD_BIT)
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#define IA64_PSR_SS (__IA64_UL(1) << IA64_PSR_SS_BIT)
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#define IA64_PSR_RI (__IA64_UL(3) << IA64_PSR_RI_BIT)
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#define IA64_PSR_ED (__IA64_UL(1) << IA64_PSR_ED_BIT)
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#define IA64_PSR_BN (__IA64_UL(1) << IA64_PSR_BN_BIT)
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#define IA64_PSR_IA (__IA64_UL(1) << IA64_PSR_IA_BIT)
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/* User mask bits: */
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#define IA64_PSR_UM (IA64_PSR_BE | IA64_PSR_UP | IA64_PSR_AC | IA64_PSR_MFL | IA64_PSR_MFH)
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/* Default Control Register */
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#define IA64_DCR_PP_BIT 0 /* privileged performance monitor default */
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#define IA64_DCR_BE_BIT 1 /* big-endian default */
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#define IA64_DCR_LC_BIT 2 /* ia32 lock-check enable */
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#define IA64_DCR_DM_BIT 8 /* defer TLB miss faults */
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#define IA64_DCR_DP_BIT 9 /* defer page-not-present faults */
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#define IA64_DCR_DK_BIT 10 /* defer key miss faults */
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#define IA64_DCR_DX_BIT 11 /* defer key permission faults */
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#define IA64_DCR_DR_BIT 12 /* defer access right faults */
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#define IA64_DCR_DA_BIT 13 /* defer access bit faults */
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#define IA64_DCR_DD_BIT 14 /* defer debug faults */
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#define IA64_DCR_PP (__IA64_UL(1) << IA64_DCR_PP_BIT)
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#define IA64_DCR_BE (__IA64_UL(1) << IA64_DCR_BE_BIT)
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#define IA64_DCR_LC (__IA64_UL(1) << IA64_DCR_LC_BIT)
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#define IA64_DCR_DM (__IA64_UL(1) << IA64_DCR_DM_BIT)
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#define IA64_DCR_DP (__IA64_UL(1) << IA64_DCR_DP_BIT)
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#define IA64_DCR_DK (__IA64_UL(1) << IA64_DCR_DK_BIT)
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#define IA64_DCR_DX (__IA64_UL(1) << IA64_DCR_DX_BIT)
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#define IA64_DCR_DR (__IA64_UL(1) << IA64_DCR_DR_BIT)
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#define IA64_DCR_DA (__IA64_UL(1) << IA64_DCR_DA_BIT)
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#define IA64_DCR_DD (__IA64_UL(1) << IA64_DCR_DD_BIT)
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/* Interrupt Status Register */
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#define IA64_ISR_X_BIT 32 /* execute access */
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#define IA64_ISR_W_BIT 33 /* write access */
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#define IA64_ISR_R_BIT 34 /* read access */
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#define IA64_ISR_NA_BIT 35 /* non-access */
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#define IA64_ISR_SP_BIT 36 /* speculative load exception */
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#define IA64_ISR_RS_BIT 37 /* mandatory register-stack exception */
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#define IA64_ISR_IR_BIT 38 /* invalid register frame exception */
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#define IA64_ISR_CODE_MASK 0xf
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#define IA64_ISR_X (__IA64_UL(1) << IA64_ISR_X_BIT)
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#define IA64_ISR_W (__IA64_UL(1) << IA64_ISR_W_BIT)
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#define IA64_ISR_R (__IA64_UL(1) << IA64_ISR_R_BIT)
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#define IA64_ISR_NA (__IA64_UL(1) << IA64_ISR_NA_BIT)
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#define IA64_ISR_SP (__IA64_UL(1) << IA64_ISR_SP_BIT)
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#define IA64_ISR_RS (__IA64_UL(1) << IA64_ISR_RS_BIT)
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#define IA64_ISR_IR (__IA64_UL(1) << IA64_ISR_IR_BIT)
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/* ISR code field for non-access instructions */
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#define IA64_ISR_CODE_TPA 0
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#define IA64_ISR_CODE_FC 1
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#define IA64_ISR_CODE_PROBE 2
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#define IA64_ISR_CODE_TAK 3
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#define IA64_ISR_CODE_LFETCH 4
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#define IA64_ISR_CODE_PROBEF 5
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#endif /* _ASM_IA64_kREGS_H */
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