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