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 
fsr_fs(unsigned int fsr)17 static inline int fsr_fs(unsigned int fsr)
18 {
19 	return fsr & FSR_FS5_0;
20 }
21 #else
22 #define FSR_FS_AEA		22
23 
fsr_fs(unsigned int fsr)24 static inline int fsr_fs(unsigned int fsr)
25 {
26 	return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
27 }
28 #endif
29 
30 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
31 void early_abt_enable(void);
32 
33 #endif	/* __ARCH_ARM_FAULT_H */
34