diff options
Diffstat (limited to 'arch/arm64/include/asm/asm-extable.h')
| -rw-r--r-- | arch/arm64/include/asm/asm-extable.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/asm-extable.h b/arch/arm64/include/asm/asm-extable.h index 11209da19c62..c39f2437e08e 100644 --- a/arch/arm64/include/asm/asm-extable.h +++ b/arch/arm64/include/asm/asm-extable.h @@ -6,6 +6,7 @@ #define EX_TYPE_FIXUP 1 #define EX_TYPE_BPF 2 #define EX_TYPE_UACCESS_ERR_ZERO 3 +#define EX_TYPE_LOAD_UNALIGNED_ZEROPAD 4 #ifdef __ASSEMBLY__ @@ -75,6 +76,20 @@ #define _ASM_EXTABLE_UACCESS_ERR(insn, fixup, err) \ _ASM_EXTABLE_UACCESS_ERR_ZERO(insn, fixup, err, wzr) +#define EX_DATA_REG_DATA_SHIFT 0 +#define EX_DATA_REG_DATA GENMASK(4, 0) +#define EX_DATA_REG_ADDR_SHIFT 5 +#define EX_DATA_REG_ADDR GENMASK(9, 5) + +#define _ASM_EXTABLE_LOAD_UNALIGNED_ZEROPAD(insn, fixup, data, addr) \ + __DEFINE_ASM_GPR_NUMS \ + __ASM_EXTABLE_RAW(#insn, #fixup, \ + __stringify(EX_TYPE_LOAD_UNALIGNED_ZEROPAD), \ + "(" \ + EX_DATA_REG(DATA, data) " | " \ + EX_DATA_REG(ADDR, addr) \ + ")") + #endif /* __ASSEMBLY__ */ #endif /* __ASM_ASM_EXTABLE_H */ |