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authorAnton Blanchard <anton@samba.org>2012-04-18 02:21:52 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-04-30 15:37:26 +1000
commit694caf0255dcab506d1e174c96a65ab65d96e108 (patch)
treeb5bb6facfc517062c319c742b54c4fceffa56c9b /arch/powerpc/include/asm/ppc_asm.h
parent6cd3209967469f6e89d329deda6bb0b4700e7b62 (diff)
downloadvexpress-lsk-694caf0255dcab506d1e174c96a65ab65d96e108.tar.gz
powerpc: Remove CONFIG_POWER4_ONLY
Remove CONFIG_POWER4_ONLY, the option is badly named and only does two things: - It wraps the MMU segment table code. With feature fixups there is little downside to compiling this in. - It uses the newer mtocrf instruction in various assembly functions. Instead of making this a compile option just do it at runtime via a feature fixup. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/ppc_asm.h')
-rw-r--r--arch/powerpc/include/asm/ppc_asm.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 50f73aa2ba2..15444204a3a 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -369,7 +369,15 @@ BEGIN_FTR_SECTION \
END_FTR_SECTION_IFCLR(CPU_FTR_601)
#endif
-
+#ifdef CONFIG_PPC64
+#define MTOCRF(FXM, RS) \
+ BEGIN_FTR_SECTION_NESTED(848); \
+ mtcrf (FXM), (RS); \
+ FTR_SECTION_ELSE_NESTED(848); \
+ mtocrf (FXM), (RS); \
+ ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_NOEXECUTE, 848)
+#endif
+
/*
* This instruction is not implemented on the PPC 603 or 601; however, on
* the 403GCX and 405GP tlbia IS defined and tlbie is not.