Commit aabd2233 authored by Jordan Niethe's avatar Jordan Niethe Committed by Michael Ellerman
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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: default avatarJordan Niethe <jniethe5@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Reviewed-by: default avatarBalamuruhan S <bala24@linux.ibm.com>
Link: https://lore.kernel.org/r/20200506034050.24806-10-jniethe5@gmail.com
parent 8094892d

arch/powerpc/include/asm/inst.h

+5 −0
Original line number Diff line number Diff line
@@ -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 */

arch/powerpc/kernel/align.c

+1 −1
Original line number Diff line number Diff line
@@ -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