diff options
Diffstat (limited to 'arch/s390/include/asm/processor.h')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index c417015c5304..085fb0d3c54e 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -233,6 +233,17 @@ static inline void __load_psw_mask (unsigned long mask) } /* + * Extract current PSW mask + */ +static inline unsigned long __extract_psw(void) +{ + unsigned int reg1, reg2; + + asm volatile("epsw %0,%1" : "=d" (reg1), "=a" (reg2)); + return (((unsigned long) reg1) << 32) | ((unsigned long) reg2); +} + +/* * Rewind PSW instruction address by specified number of bytes. */ static inline unsigned long __rewind_psw(psw_t psw, unsigned long ilc) |