[PATCH v8 09/30] powerpc: Use a function for byte swapping instructions
From: Jordan Niethe <hidden>
Date: 2020-05-06 04:01:25
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Use a function for byte swapping instructions in preparation of a more complicated instruction type. Reviewed-by: Balamuruhan S <redacted> Signed-off-by: Jordan Niethe <redacted> --- arch/powerpc/include/asm/inst.h | 5 +++++ arch/powerpc/kernel/align.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/inst.h b/arch/powerpc/include/asm/inst.h
index 442a95f20de7..23fd57a86b03 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_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
--
2.17.1