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_TRANS_NOLL 0x4 |
18 | #define FS_PERM_NOLL 0xC |
19 | #define FS_MMU_NOLL_MASK 0x3C |
20 | |
21 | static inline int fsr_fs(unsigned int fsr) |
22 | { |
23 | return fsr & FSR_FS5_0; |
24 | } |
25 | #else |
26 | #define FSR_FS_AEA 22 |
27 | #define FS_L1_TRANS 0x5 |
28 | #define FS_L2_TRANS 0x7 |
29 | #define FS_L1_PERM 0xD |
30 | #define FS_L2_PERM 0xF |
31 | |
32 | static inline int fsr_fs(unsigned int fsr) |
33 | { |
34 | return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6; |
35 | } |
36 | #endif |
37 | |
38 | void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs); |
39 | void early_abt_enable(void); |
40 | asmlinkage void do_DataAbort(unsigned long addr, unsigned int fsr, |
41 | struct pt_regs *regs); |
42 | asmlinkage void do_PrefetchAbort(unsigned long addr, unsigned int ifsr, |
43 | struct pt_regs *regs); |
44 | |
45 | #endif /* __ARCH_ARM_FAULT_H */ |
46 | |