| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef __ARCH_ARM_FAULT_H | |
| #define __ARCH_ARM_FAULT_H | |
| /* | |
| * Fault status register encodings. We steal bit 31 for our own purposes. | |
| */ | |
| #define FSR_LNX_PF (1 << 31) | |
| #define FSR_CM (1 << 13) | |
| #define FSR_WRITE (1 << 11) | |
| #define FSR_FS4 (1 << 10) | |
| #define FSR_FS3_0 (15) | |
| #define FSR_FS5_0 (0x3f) | |
| #ifdef CONFIG_ARM_LPAE | |
| #define FSR_FS_AEA 17 | |
| #define FS_PERM_NOLL 0xC | |
| #define FS_PERM_NOLL_MASK 0x3C | |
| static inline int fsr_fs(unsigned int fsr) | |
| { | |
| return fsr & FSR_FS5_0; | |
| } | |
| #else | |
| #define FSR_FS_AEA 22 | |
| #define FS_L1_PERM 0xD | |
| #define FS_L2_PERM 0xF | |
| static inline int fsr_fs(unsigned int fsr) | |
| { | |
| return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6; | |
| } | |
| #endif | |
| void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs); | |
| void early_abt_enable(void); | |
| #endif /* __ARCH_ARM_FAULT_H */ |