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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2013 - ARM Ltd
* Author: Marc Zyngier <marc.zyngier@arm.com>
*/
#ifndef __ASM_ESR_H
#define __ASM_ESR_H
#include <asm/memory.h>
#include <asm/sysreg.h>
#define ESR_ELx_EC_UNKNOWN (0x00)
#define ESR_ELx_EC_WFx (0x01)
/* Unallocated EC: 0x02 */
#define ESR_ELx_EC_CP15_32 (0x03)
#define ESR_ELx_EC_CP15_64 (0x04)
#define ESR_ELx_EC_CP14_MR (0x05)
#define ESR_ELx_EC_CP14_LS (0x06)
#define ESR_ELx_EC_FP_ASIMD (0x07)
#define ESR_ELx_EC_CP10_ID (0x08) /* EL2 only */
#define ESR_ELx_EC_PAC (0x09) /* EL2 and above */
/* Unallocated EC: 0x0A - 0x0B */
#define ESR_ELx_EC_CP14_64 (0x0C)
#define ESR_ELx_EC_BTI (0x0D)
#define ESR_ELx_EC_ILL (0x0E)
/* Unallocated EC: 0x0F - 0x10 */
#define ESR_ELx_EC_SVC32 (0x11)
#define ESR_ELx_EC_HVC32 (0x12) /* EL2 only */
#define ESR_ELx_EC_SMC32 (0x13) /* EL2 and above */
/* Unallocated EC: 0x14 */
#define ESR_ELx_EC_SVC64 (0x15)
#define ESR_ELx_EC_HVC64 (0x16) /* EL2 and above */
#define ESR_ELx_EC_SMC64 (0x17) /* EL2 and above */
#define ESR_ELx_EC_SYS64 (0x18)
#define ESR_ELx_EC_SVE (0x19)
#define ESR_ELx_EC_ERET (0x1a) /* EL2 only */
/* Unallocated EC: 0x1B */
#define ESR_ELx_EC_FPAC (0x1C) /* EL1 and above */
#define ESR_ELx_EC_SME (0x1D)
/* Unallocated EC: 0x1E */
#define ESR_ELx_EC_IMP_DEF (0x1f) /* EL3 only */
#define ESR_ELx_EC_IABT_LOW (0x20)
#define ESR_ELx_EC_IABT_CUR (0x21)
#define ESR_ELx_EC_PC_ALIGN (0x22)
/* Unallocated EC: 0x23 */
#define ESR_ELx_EC_DABT_LOW (0x24)
#define ESR_ELx_EC_DABT_CUR (0x25)
#define ESR_ELx_EC_SP_ALIGN (0x26)
/* Unallocated EC: 0x27 */
#define ESR_ELx_EC_FP_EXC32 (0x28)
/* Unallocated EC: 0x29 - 0x2B */
#define ESR_ELx_EC_FP_EXC64 (0x2C)
/* Unallocated EC: 0x2D - 0x2E */
#define ESR_ELx_EC_SERROR (0x2F)
#define ESR_ELx_EC_BREAKPT_LOW (0x30)
#define ESR_ELx_EC_BREAKPT_CUR (0x31)
#define ESR_ELx_EC_SOFTSTP_LOW (0x32)
#define ESR_ELx_EC_SOFTSTP_CUR (0x33)
#define ESR_ELx_EC_WATCHPT_LOW (0x34)
#define ESR_ELx_EC_WATCHPT_CUR (0x35)
/* Unallocated EC: 0x36 - 0x37 */
#define ESR_ELx_EC_BKPT32 (0x38)
/* Unallocated EC: 0x39 */
#define ESR_ELx_EC_VECTOR32 (0x3A) /* EL2 only */
/* Unallocated EC: 0x3B */
#define ESR_ELx_EC_BRK64 (0x3C)
/* Unallocated EC: 0x3D - 0x3F */
#define ESR_ELx_EC_MAX (0x3F)
#define ESR_ELx_EC_SHIFT (26)
#define ESR_ELx_EC_WIDTH (6)
#define ESR_ELx_EC_MASK (UL(0x3F) << ESR_ELx_EC_SHIFT)
#define ESR_ELx_EC(esr) (((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)
#define ESR_ELx_IL_SHIFT (25)
#define ESR_ELx_IL (UL(1) << ESR_ELx_IL_SHIFT)
#define ESR_ELx_ISS_MASK (ESR_ELx_IL - 1)
#define ESR_ELx_ISS(esr) ((esr) & ESR_ELx_ISS_MASK)
/* ISS field definitions shared by different classes */
#define ESR_ELx_WNR_SHIFT (6)
#define ESR_ELx_WNR (UL(1) << ESR_ELx_WNR_SHIFT)
/* Asynchronous Error Type */
#define ESR_ELx_IDS_SHIFT (24)
#define ESR_ELx_IDS (UL(1) << ESR_ELx_IDS_SHIFT)
#define ESR_ELx_AET_SHIFT (10)
#define ESR_ELx_AET (UL(0x7) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UC (UL(0) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UEU (UL(1) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UEO (UL(2) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UER (UL(3) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_CE (UL(6) << ESR_ELx_AET_SHIFT)
/* Shared ISS field definitions for Data/Instruction aborts */
#define ESR_ELx_SET_SHIFT (11)
#define ESR_ELx_SET_MASK (UL(3) << ESR_ELx_SET_SHIFT)
#define ESR_ELx_FnV_SHIFT (10)
#define ESR_ELx_FnV (UL(1) << ESR_ELx_FnV_SHIFT)
#define ESR_ELx_EA_SHIFT (9)
#define ESR_ELx_EA (UL(1) << ESR_ELx_EA_SHIFT)
#define ESR_ELx_S1PTW_SHIFT (7)
#define ESR_ELx_S1PTW (UL(1) << ESR_ELx_S1PTW_SHIFT)
/* Shared ISS fault status code(IFSC/DFSC) for Data/Instruction aborts */
#define ESR_ELx_FSC (0x3F)
#define ESR_ELx_FSC_TYPE (0x3C)
#define ESR_ELx_FSC_LEVEL (0x03)
#define ESR_ELx_FSC_EXTABT (0x10)
#define ESR_ELx_FSC_MTE (0x11)
#define ESR_ELx_FSC_SERROR (0x11)
#define ESR_ELx_FSC_ACCESS (0x08)
#define ESR_ELx_FSC_FAULT (0x04)
#define ESR_ELx_FSC_PERM (0x0C)
/* ISS field definitions for Data Aborts */
#define ESR_ELx_ISV_SHIFT (24)
#define ESR_ELx_ISV (UL(1) << ESR_ELx_ISV_SHIFT)
#define ESR_ELx_SAS_SHIFT (22)
#define ESR_ELx_SAS (UL(3) << ESR_ELx_SAS_SHIFT)
#define ESR_ELx_SSE_SHIFT (21)
#define ESR_ELx_SSE (UL(1) << ESR_ELx_SSE_SHIFT)
#define ESR_ELx_SRT_SHIFT (16)
#define ESR_ELx_SRT_MASK (UL(0x1F) << ESR_ELx_SRT_SHIFT)
#define ESR_ELx_SF_SHIFT (15)
#define ESR_ELx_SF (UL(1) << ESR_ELx_SF_SHIFT)
#define ESR_ELx_AR_SHIFT (14)
#define ESR_ELx_AR (UL(1) << ESR_ELx_AR_SHIFT)
#define ESR_ELx_CM_SHIFT (8)
#define ESR_ELx_CM (UL(1) << ESR_ELx_CM_SHIFT)
/* ISS field definitions for exceptions taken in to Hyp */
#define ESR_ELx_CV (UL(1) << 24)
#define ESR_ELx_COND_SHIFT (20)
#define ESR_ELx_COND_MASK (UL(0xF) << ESR_ELx_COND_SHIFT)
#define ESR_ELx_WFx_ISS_RN (UL(0x1F) << 5)
#define ESR_ELx_WFx_ISS_RV (UL(1) << 2)
#define ESR_ELx_WFx_ISS_TI (UL(3) << 0)
#define ESR_ELx_WFx_ISS_WFxT (UL(2) << 0)
#define ESR_ELx_WFx_ISS_WFI (UL(0) << 0)
#define ESR_ELx_WFx_ISS_WFE (UL(1) << 0)
#define ESR_ELx_xVC_IMM_MASK ((UL(1) << 16) - 1)
#define DISR_EL1_IDS (UL(1) << 24)
/*
* DISR_EL1 and ESR_ELx share the bottom 13 bits, but the RES0 bits may mean
* different things in the future...
*/
#define DISR_EL1_ESR_MASK (ESR_ELx_AET | ESR_ELx_EA | ESR_ELx_FSC)
/* ESR value templates for specific events */
#define ESR_ELx_WFx_MASK (ESR_ELx_EC_MASK | \
(ESR_ELx_WFx_ISS_TI & ~ESR_ELx_WFx_ISS_WFxT))
#define ESR_ELx_WFx_WFI_VAL ((ESR_ELx_EC_WFx << ESR_ELx_EC_SHIFT) | \
ESR_ELx_WFx_ISS_WFI)
/* BRK instruction trap from AArch64 state */
#define ESR_ELx_BRK64_ISS_COMMENT_MASK 0xffff
/* ISS field definitions for System instruction traps */
#define ESR_ELx_SYS64_ISS_RES0_SHIFT 22
#define ESR_ELx_SYS64_ISS_RES0_MASK (UL(0x7) << ESR_ELx_SYS64_ISS_RES0_SHIFT)
#define ESR_ELx_SYS64_ISS_DIR_MASK 0x1
#define ESR_ELx_SYS64_ISS_DIR_READ 0x1
#define ESR_ELx_SYS64_ISS_DIR_WRITE 0x0
#define ESR_ELx_SYS64_ISS_RT_SHIFT 5
#define ESR_ELx_SYS64_ISS_RT_MASK (UL(0x1f) << ESR_ELx_SYS64_ISS_RT_SHIFT)
#define ESR_ELx_SYS64_ISS_CRM_SHIFT 1
#define ESR_ELx_SYS64_ISS_CRM_MASK (UL(0xf) << ESR_ELx_SYS64_ISS_CRM_SHIFT)
#define ESR_ELx_SYS64_ISS_CRN_SHIFT 10
#define ESR_ELx_SYS64_ISS_CRN_MASK (UL(0xf) << ESR_ELx_SYS64_ISS_CRN_SHIFT)
#define ESR_ELx_SYS64_ISS_OP1_SHIFT 14
#define ESR_ELx_SYS64_ISS_OP1_MASK (UL(0x7) << ESR_ELx_SYS64_ISS_OP1_SHIFT)
#define ESR_ELx_SYS64_ISS_OP2_SHIFT 17
#define ESR_ELx_SYS64_ISS_OP2_MASK (UL(0x7) << ESR_ELx_SYS64_ISS_OP2_SHIFT)
#define ESR_ELx_SYS64_ISS_OP0_SHIFT 20
#define ESR_ELx_SYS64_ISS_OP0_MASK (UL(0x3) << ESR_ELx_SYS64_ISS_OP0_SHIFT)
#define ESR_ELx_SYS64_ISS_SYS_MASK (ESR_ELx_SYS64_ISS_OP0_MASK | \
ESR_ELx_SYS64_ISS_OP1_MASK | \
ESR_ELx_SYS64_ISS_OP2_MASK | \
ESR_ELx_SYS64_ISS_CRN_MASK | \
ESR_ELx_SYS64_ISS_CRM_MASK)
#define ESR_ELx_SYS64_ISS_SYS_VAL(op0, op1, op2, crn, crm) \
(((op0) << ESR_ELx_SYS64_ISS_OP0_SHIFT) | \
((op1) << ESR_ELx_SYS64_ISS_OP1_SHIFT) | \
((op2) << ESR_ELx_SYS64_ISS_OP2_SHIFT) | \
((crn) << ESR_ELx_SYS64_ISS_CRN_SHIFT) | \
((crm) << ESR_ELx_SYS64_ISS_CRM_SHIFT))
#define ESR_ELx_SYS64_ISS_SYS_OP_MASK (ESR_ELx_SYS64_ISS_SYS_MASK | \
ESR_ELx_SYS64_ISS_DIR_MASK)
#define ESR_ELx_SYS64_ISS_RT(esr) \
(((esr) & ESR_ELx_SYS64_ISS_RT_MASK) >> ESR_ELx_SYS64_ISS_RT_SHIFT)
/*
* User space cache operations have the following sysreg encoding
* in System instructions.
* op0=1, op1=3, op2=1, crn=7, crm={ 5, 10, 11, 12, 13, 14 }, WRITE (L=0)
*/
#define ESR_ELx_SYS64_ISS_CRM_DC_CIVAC 14
#define ESR_ELx_SYS64_ISS_CRM_DC_CVADP 13
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAP 12
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAU 11
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAC 10
#define ESR_ELx_SYS64_ISS_CRM_IC_IVAU 5
#define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_MASK (ESR_ELx_SYS64_ISS_OP0_MASK | \
ESR_ELx_SYS64_ISS_OP1_MASK | \
ESR_ELx_SYS64_ISS_OP2_MASK | \
ESR_ELx_SYS64_ISS_CRN_MASK | \
ESR_ELx_SYS64_ISS_DIR_MASK)
#define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_VAL \
(ESR_ELx_SYS64_ISS_SYS_VAL(1, 3, 1, 7, 0) | \
ESR_ELx_SYS64_ISS_DIR_WRITE)
/*
* User space MRS operations which are supported for emulation
* have the following sysreg encoding in System instructions.
* op0 = 3, op1= 0, crn = 0, {crm = 0, 4-7}, READ (L = 1)
*/
#define ESR_ELx_SYS64_ISS_SYS_MRS_OP_MASK (ESR_ELx_SYS64_ISS_OP0_MASK | \
ESR_ELx_SYS64_ISS_OP1_MASK | \
ESR_ELx_SYS64_ISS_CRN_MASK | \
ESR_ELx_SYS64_ISS_DIR_MASK)
#define ESR_ELx_SYS64_ISS_SYS_MRS_OP_VAL \
(ESR_ELx_SYS64_ISS_SYS_VAL(3, 0, 0, 0, 0) | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define ESR_ELx_SYS64_ISS_SYS_CTR ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 1, 0, 0)
#define ESR_ELx_SYS64_ISS_SYS_CTR_READ (ESR_ELx_SYS64_ISS_SYS_CTR | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define ESR_ELx_SYS64_ISS_SYS_CNTVCT (ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 2, 14, 0) | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define ESR_ELx_SYS64_ISS_SYS_CNTVCTSS (ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 6, 14, 0) | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define ESR_ELx_SYS64_ISS_SYS_CNTFRQ (ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 0, 14, 0) | \
ESR_ELx_SYS64_ISS_DIR_READ)
#define esr_sys64_to_sysreg(e) \
sys_reg((((e) & ESR_ELx_SYS64_ISS_OP0_MASK) >> \
ESR_ELx_SYS64_ISS_OP0_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >> \
ESR_ELx_SYS64_ISS_OP1_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >> \
ESR_ELx_SYS64_ISS_CRN_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >> \
ESR_ELx_SYS64_ISS_CRM_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >> \
ESR_ELx_SYS64_ISS_OP2_SHIFT))
#define esr_cp15_to_sysreg(e) \
sys_reg(3, \
(((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >> \
ESR_ELx_SYS64_ISS_OP1_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >> \
ESR_ELx_SYS64_ISS_CRN_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >> \
ESR_ELx_SYS64_ISS_CRM_SHIFT), \
(((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >> \
ESR_ELx_SYS64_ISS_OP2_SHIFT))
/*
* ISS field definitions for floating-point exception traps
* (FP_EXC_32/FP_EXC_64).
*
* (The FPEXC_* constants are used instead for common bits.)
*/
#define ESR_ELx_FP_EXC_TFV (UL(1) << 23)
/*
* ISS field definitions for CP15 accesses
*/
#define ESR_ELx_CP15_32_ISS_DIR_MASK 0x1
#define ESR_ELx_CP15_32_ISS_DIR_READ 0x1
#define ESR_ELx_CP15_32_ISS_DIR_WRITE 0x0
#define ESR_ELx_CP15_32_ISS_RT_SHIFT 5
#define ESR_ELx_CP15_32_ISS_RT_MASK (UL(0x1f) << ESR_ELx_CP15_32_ISS_RT_SHIFT)
#define ESR_ELx_CP15_32_ISS_CRM_SHIFT 1
#define ESR_ELx_CP15_32_ISS_CRM_MASK (UL(0xf) << ESR_ELx_CP15_32_ISS_CRM_SHIFT)
#define ESR_ELx_CP15_32_ISS_CRN_SHIFT 10
#define ESR_ELx_CP15_32_ISS_CRN_MASK (UL(0xf) << ESR_ELx_CP15_32_ISS_CRN_SHIFT)
#define ESR_ELx_CP15_32_ISS_OP1_SHIFT 14
#define ESR_ELx_CP15_32_ISS_OP1_MASK (UL(0x7) << ESR_ELx_CP15_32_ISS_OP1_SHIFT)
#define ESR_ELx_CP15_32_ISS_OP2_SHIFT 17
#define ESR_ELx_CP15_32_ISS_OP2_MASK (UL(0x7) << ESR_ELx_CP15_32_ISS_OP2_SHIFT)
#define ESR_ELx_CP15_32_ISS_SYS_MASK (ESR_ELx_CP15_32_ISS_OP1_MASK | \
ESR_ELx_CP15_32_ISS_OP2_MASK | \
ESR_ELx_CP15_32_ISS_CRN_MASK | \
ESR_ELx_CP15_32_ISS_CRM_MASK | \
ESR_ELx_CP15_32_ISS_DIR_MASK)
#define ESR_ELx_CP15_32_ISS_SYS_VAL(op1, op2, crn, crm) \
(((op1) << ESR_ELx_CP15_32_ISS_OP1_SHIFT) | \
((op2) << ESR_ELx_CP15_32_ISS_OP2_SHIFT) | \
((crn) << ESR_ELx_CP15_32_ISS_CRN_SHIFT) | \
((crm) << ESR_ELx_CP15_32_ISS_CRM_SHIFT))
#define ESR_ELx_CP15_64_ISS_DIR_MASK 0x1
#define ESR_ELx_CP15_64_ISS_DIR_READ 0x1
#define ESR_ELx_CP15_64_ISS_DIR_WRITE 0x0
#define ESR_ELx_CP15_64_ISS_RT_SHIFT 5
#define ESR_ELx_CP15_64_ISS_RT_MASK (UL(0x1f) << ESR_ELx_CP15_64_ISS_RT_SHIFT)
#define ESR_ELx_CP15_64_ISS_RT2_SHIFT 10
#define ESR_ELx_CP15_64_ISS_RT2_MASK (UL(0x1f) << ESR_ELx_CP15_64_ISS_RT2_SHIFT)
#define ESR_ELx_CP15_64_ISS_OP1_SHIFT 16
#define ESR_ELx_CP15_64_ISS_OP1_MASK (UL(0xf) << ESR_ELx_CP15_64_ISS_OP1_SHIFT)
#define ESR_ELx_CP15_64_ISS_CRM_SHIFT 1
#define ESR_ELx_CP15_64_ISS_CRM_MASK (UL(0xf) << ESR_ELx_CP15_64_ISS_CRM_SHIFT)
#define ESR_ELx_CP15_64_ISS_SYS_VAL(op1, crm) \
(((op1) << ESR_ELx_CP15_64_ISS_OP1_SHIFT) | \
((crm) << ESR_ELx_CP15_64_ISS_CRM_SHIFT))
#define ESR_ELx_CP15_64_ISS_SYS_MASK (ESR_ELx_CP15_64_ISS_OP1_MASK | \
ESR_ELx_CP15_64_ISS_CRM_MASK | \
ESR_ELx_CP15_64_ISS_DIR_MASK)
#define ESR_ELx_CP15_64_ISS_SYS_CNTVCT (ESR_ELx_CP15_64_ISS_SYS_VAL(1, 14) | \
ESR_ELx_CP15_64_ISS_DIR_READ)
#define ESR_ELx_CP15_64_ISS_SYS_CNTVCTSS (ESR_ELx_CP15_64_ISS_SYS_VAL(9, 14) | \
ESR_ELx_CP15_64_ISS_DIR_READ)
#define ESR_ELx_CP15_32_ISS_SYS_CNTFRQ (ESR_ELx_CP15_32_ISS_SYS_VAL(0, 0, 14, 0) |\
ESR_ELx_CP15_32_ISS_DIR_READ)
/*
* ISS values for SME traps
*/
#define ESR_ELx_SME_ISS_SME_DISABLED 0
#define ESR_ELx_SME_ISS_ILL 1
#define ESR_ELx_SME_ISS_SM_DISABLED 2
#define ESR_ELx_SME_ISS_ZA_DISABLED 3
#ifndef __ASSEMBLY__
#include <asm/types.h>
static inline bool esr_is_data_abort(unsigned long esr)
{
const unsigned long ec = ESR_ELx_EC(esr);
return ec == ESR_ELx_EC_DABT_LOW || ec == ESR_ELx_EC_DABT_CUR;
}
const char *esr_get_class_string(unsigned long esr);
#endif /* __ASSEMBLY */
#endif /* __ASM_ESR_H */
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