diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /arch/arm/mm/fault.h | |
Diffstat (limited to 'arch/arm/mm/fault.h')
| -rw-r--r-- | arch/arm/mm/fault.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h new file mode 100644 index 00000000..cf08bdfb --- /dev/null +++ b/arch/arm/mm/fault.h @@ -0,0 +1,28 @@ +#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_WRITE (1 << 11) +#define FSR_FS4 (1 << 10) +#define FSR_FS3_0 (15) +#define FSR_FS5_0 (0x3f) + +#ifdef CONFIG_ARM_LPAE +static inline int fsr_fs(unsigned int fsr) +{ + return fsr & FSR_FS5_0; +} +#else +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); +unsigned long search_exception_table(unsigned long addr); + +#endif /* __ARCH_ARM_FAULT_H */ |