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_PERM_NOLL 0xC 18 #define FS_PERM_NOLL_MASK 0x3C 19 20 static inline int fsr_fs(unsigned int fsr) 21 { 22 return fsr & FSR_FS5_0; 23 } 24 #else 25 #define FSR_FS_AEA 22 26 #define FS_L1_PERM 0xD 27 #define FS_L2_PERM 0xF 28 29 static inline int fsr_fs(unsigned int fsr) 30 { 31 return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6; 32 } 33 #endif 34 35 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs); 36 void early_abt_enable(void); 37 38 #endif /* __ARCH_ARM_FAULT_H */ 39