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| author |   Jordan Niethe <jniethe5@gmail.com> | 2020-05-06 13:40:29 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-05-19 00:10:37 +1000 |
| commit | aabd2233b6aefeee6d7a2f667076d8346be1d30a (patch) | |
| tree | 16af29fb1e8ce389f1fb220c3ff6845a15f65122 | |
| parent | powerpc: Use a function for getting the instruction op code (diff) | |
| download | linux-dev-aabd2233b6aefeee6d7a2f667076d8346be1d30a.tar.xz linux-dev-aabd2233b6aefeee6d7a2f667076d8346be1d30a.zip | |
powerpc: Use a function for byte swapping instructions
Use a function for byte swapping instructions in preparation of a more
complicated instruction type.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Balamuruhan S <bala24@linux.ibm.com>
Link: https://lore.kernel.org/r/20200506034050.24806-10-jniethe5@gmail.com
| -rw-r--r-- | arch/powerpc/include/asm/inst.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/kernel/align.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/inst.h b/arch/powerpc/include/asm/inst.h index 09b4ec7debc1..ff2c8fe3e262 100644 --- a/arch/powerpc/include/asm/inst.h +++ b/arch/powerpc/include/asm/inst.h @@ -18,4 +18,9 @@ static inline int ppc_inst_primary_opcode(u32 x) return ppc_inst_val(x) >> 26; } +static inline u32 ppc_inst_swab(u32 x) +{ + return ppc_inst(swab32(ppc_inst_val(x))); +} + #endif /* _ASM_POWERPC_INST_H */ diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index 47dbba81a227..a63216da8cf1 100644 --- a/arch/powerpc/kernel/align.c +++ b/arch/powerpc/kernel/align.c @@ -310,7 +310,7 @@ int fix_alignment(struct pt_regs *regs) /* We don't handle PPC little-endian any more... */ if (cpu_has_feature(CPU_FTR_PPC_LE)) return -EIO; - instr = swab32(instr); + instr = ppc_inst_swab(instr); } #ifdef CONFIG_SPE |