1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ARCH_ARM_FAULT_H
3 #define __ARCH_ARM_FAULT_H
6 * Fault status register encodings. We steal bit 31 for our own purposes.
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)
15 #ifdef CONFIG_ARM_LPAE
17 #define FS_PERM_NOLL 0xC
18 #define FS_PERM_NOLL_MASK 0x3C
20 static inline int fsr_fs(unsigned int fsr)
22 return fsr & FSR_FS5_0;
26 #define FS_L1_PERM 0xD
27 #define FS_L2_PERM 0xF
29 static inline int fsr_fs(unsigned int fsr)
31 return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
35 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
36 void early_abt_enable(void);
38 #endif /* __ARCH_ARM_FAULT_H */