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>

parent d57cef91

arch/powerpc/include/asm/asm-compat.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -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