diff options
Diffstat (limited to 'arch/powerpc/boot/reg.h')
| -rw-r--r-- | arch/powerpc/boot/reg.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/boot/reg.h b/arch/powerpc/boot/reg.h index d3cd9ee98afb..9c2c9978e0eb 100644 --- a/arch/powerpc/boot/reg.h +++ b/arch/powerpc/boot/reg.h @@ -16,6 +16,14 @@ static inline u32 mfpvr(void) return pvr; } +#define __stringify_1(x) #x +#define __stringify(x) __stringify_1(x) + +#define mfspr(rn) ({unsigned long rval; \ + asm volatile("mfspr %0," __stringify(rn) \ + : "=r" (rval)); rval; }) +#define mtspr(rn, v) asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v)) + register void *__stack_pointer asm("r1"); #define get_sp() (__stack_pointer) |