powerpc/85xx: Remove -Wa,-me500

This caused lwsync to be converted to sync on 64-bit (on 32-bit lwsync
is generated at runtime, and so wasn't affected).  Not using lwsync
caused a significant slowdown on certain workloads.

Setting this flag for any e500-enabled build is also not friendly to
multiplatform kernels.

Signed-off-by: Scott Wood <scottwood@freescale.com>

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 967fd23ace78bd5886e7a8c8b417afa58915b433..6930c935d292173a29a7ca51280d6a30786df6aa 100644 (file)
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -139,7 +139,6 @@ endif
 
 cpu-as-$(CONFIG_4xx)           += -Wa,-m405
 cpu-as-$(CONFIG_ALTIVEC)       += -Wa,-maltivec
-cpu-as-$(CONFIG_E500)          += -Wa,-me500
 cpu-as-$(CONFIG_E200)          += -Wa,-me200
 
 KBUILD_AFLAGS += $(cpu-as-y)