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Linux kernel mirror (for testing)
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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_WRITE (1 << 11)
10#define FSR_FS4 (1 << 10)
11#define FSR_FS3_0 (15)
12#define FSR_FS5_0 (0x3f)
13
14#ifdef CONFIG_ARM_LPAE
15#define FSR_FS_AEA 17
16
17static inline int fsr_fs(unsigned int fsr)
18{
19 return fsr & FSR_FS5_0;
20}
21#else
22#define FSR_FS_AEA 22
23
24static inline int fsr_fs(unsigned int fsr)
25{
26 return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
27}
28#endif
29
30void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
31void early_abt_enable(void);
32
33#endif /* __ARCH_ARM_FAULT_H */