| /* 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 */ |
