[PATCH 1/7] PPC: Add asm helpers for BE 32bit load/store

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>From assembly code we might not only have to explicitly BE access 64bit values,
but sometimes also 32bit ones. Add helpers that allow for easy use of lwzx/stwx
in their respective byte-reverse or native form.

Signed-off-by: Alexander Graf <agraf@xxxxxxx>
CC: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>

---

v1 -> v2:

  - fix typo in STWX_BE
---
 arch/powerpc/include/asm/asm-compat.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h
index 4b237aa..21be8ae 100644
--- a/arch/powerpc/include/asm/asm-compat.h
+++ b/arch/powerpc/include/asm/asm-compat.h
@@ -34,10 +34,14 @@
 #define PPC_MIN_STKFRM	112
 
 #ifdef __BIG_ENDIAN__
+#define LWZX_BE	stringify_in_c(lwzx)
 #define LDX_BE	stringify_in_c(ldx)
+#define STWX_BE	stringify_in_c(stwx)
 #define STDX_BE	stringify_in_c(stdx)
 #else
+#define LWZX_BE	stringify_in_c(lwbrx)
 #define LDX_BE	stringify_in_c(ldbrx)
+#define STWX_BE	stringify_in_c(stwbrx)
 #define STDX_BE	stringify_in_c(stdbrx)
 #endif
 
-- 
1.8.1.4

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