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 fsr_fs(unsigned int fsr)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 fsr_fs(unsigned int fsr)32static inline int fsr_fs(unsigned int fsr) 33 { 34 return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6; 35 } 36 #endif 37 38 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs); 39 void early_abt_enable(void); 40 asmlinkage void do_DataAbort(unsigned long addr, unsigned int fsr, 41 struct pt_regs *regs); 42 asmlinkage void do_PrefetchAbort(unsigned long addr, unsigned int ifsr, 43 struct pt_regs *regs); 44 45 #endif /* __ARCH_ARM_FAULT_H */ 46