Messages in this thread Patch in this message | | | From | Christophe Leroy <> | Subject | [PATCH v3 08/16] powerpc/32: add helper to write into segment registers | Date | Wed, 20 Feb 2019 17:29:15 +0000 (UTC) |
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This patch add an helper which wraps 'mtsrin' instruction to write into segment registers.
Signed-off-by: Christophe Leroy <christophe.leroy@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 1c98ef1f2d5b..a70cbaf5c26f 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1425,6 +1425,11 @@ 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
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