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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/arm/mm/fault.h | |
| parent | Initial commit. (diff) | |
| download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mm/fault.h')
| -rw-r--r-- | arch/arm/mm/fault.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h new file mode 100644 index 000000000..9ecc2097a --- /dev/null +++ b/arch/arm/mm/fault.h @@ -0,0 +1,34 @@ +/* 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 + +static inline int fsr_fs(unsigned int fsr) +{ + return fsr & FSR_FS5_0; +} +#else +#define FSR_FS_AEA 22 + +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 */ |