1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __ARCH_ARM_FAULT_H 3#define __ARCH_ARM_FAULT_H 4 5/* 6 * Fault status register encodings. We steal bit 31 for our own purposes. 7 */ 8#define FSR_LNX_PF (1 << 31) 9#define FSR_CM (1 << 13) 10#define FSR_WRITE (1 << 11) 11#define FSR_FS4 (1 << 10) 12#define FSR_FS3_0 (15) 13#define FSR_FS5_0 (0x3f) 14 15#ifdef CONFIG_ARM_LPAE 16#define FSR_FS_AEA 17 17#define FS_TRANS_NOLL 0x4 18#define FS_PERM_NOLL 0xC 19#define FS_MMU_NOLL_MASK 0x3C 20 21static inline int fsr_fs(unsigned int fsr) 22{ 23 return fsr & FSR_FS5_0; 24} 25#else 26#define FSR_FS_AEA 22 27#define FS_L1_TRANS 0x5 28#define FS_L2_TRANS 0x7 29#define FS_L1_PERM 0xD 30#define FS_L2_PERM 0xF 31 32static inline int fsr_fs(unsigned int fsr) 33{ 34 return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6; 35} 36#endif 37 38void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs); 39void early_abt_enable(void); 40asmlinkage void do_DataAbort(unsigned long addr, unsigned int fsr, 41 struct pt_regs *regs); 42asmlinkage void do_PrefetchAbort(unsigned long addr, unsigned int ifsr, 43 struct pt_regs *regs); 44 45#endif /* __ARCH_ARM_FAULT_H */ 46