Re: [PATCH 5/6] powerpc/boot: Add mfdcrx
From: Segher Boessenkool <hidden>
Date: 2011-11-30 13:10:37
+#define mfdcrx(rn) \
+ ({ \
+ unsigned long rval; \
+ asm volatile("mfdcrx %0,%1" : "=r"(rval) : "g"(rn)); \
+ rval; \
+ })"g" is never correct on PowerPC, you want "r" here. You can write this as a static inline btw, you only need the #define stuff when there is an "i" constraint involved. Segher