This patch add an helper which wraps 'mtsrin' instruction to write into segment registers.
Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr> --- arch/powerpc/include/asm/reg.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index d9598e6790d8..6b5d2a61af5a 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1424,6 +1424,11 @@ static inline void msr_check_and_clear(unsigned long bits) #define mfsrin(v) ({unsigned int rval; \ asm volatile("mfsrin %0,%1" : "=r" (rval) : "r" (v)); \ rval;}) + +static inline void mtsrin(u32 val, u32 idx) +{ + asm volatile("mtsrin %0, %1" : : "r" (val), "r" (idx)); +} #endif #define proc_trap() asm volatile("trap") -- 2.13.3