From 650b55b707fdfa764e9f2b81314d3eb4216fb962 Mon Sep 17 00:00:00 2001 From: Jordan Niethe Date: Fri, 15 May 2020 12:12:55 +1000 Subject: powerpc: Add prefixed instructions to instruction data type For powerpc64, redefine the ppc_inst type so both word and prefixed instructions can be represented. On powerpc32 the type will remain the same. Update places which had assumed instructions to be 4 bytes long. Signed-off-by: Jordan Niethe Reviewed-by: Alistair Popple [mpe: Rework the get_user_inst() macros to be parameterised, and don't assign to the dest if an error occurred. Use CONFIG_PPC64 not __powerpc64__ in a few places. Address other comments from Christophe. Fix some sparse complaints.] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200506034050.24806-24-jniethe5@gmail.com --- arch/powerpc/include/asm/ppc-opcode.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/powerpc/include/asm/ppc-opcode.h') diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index c1df75edde44..2a39c716c343 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -158,6 +158,9 @@ /* VMX Vector Store Instructions */ #define OP_31_XOP_STVX 231 +/* Prefixed Instructions */ +#define OP_PREFIX 1 + #define OP_31 31 #define OP_LWZ 32 #define OP_STFS 52 -- cgit v1.2.3