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authorAlexander Graf <agraf@suse.de>2014-06-11 10:07:40 +0200
committerAlexander Graf <agraf@suse.de>2014-07-28 15:22:21 +0200
commit8f6822c4b9fac6e47414d2f1e11dbabda9bc2163 (patch)
tree3967e1f4e1f052b7d637e2ecd770d0ac7bb79abc /arch/powerpc/include/asm/asm-compat.h
parentd57cef91a0c30d3439a4d235eb94ab9efbf797a0 (diff)
PPC: Add asm helpers for BE 32bit load/store
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@suse.de> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/asm-compat.h')
-rw-r--r--arch/powerpc/include/asm/asm-compat.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h
index 4b237aa35660..21be8ae8f809 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