diff options
| author | Frank Munzert <munzert@de.ibm.com> | 2009-03-26 15:23:43 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-03-26 15:24:03 +0100 |
| commit | 099b765139929efdcf232f8870804accf8c4cdc5 (patch) | |
| tree | 9869bb629def6f49d5d3b82e8e0b301cabbc1b8c /arch/s390/include/asm/system.h | |
| parent | d7fd5f1e3b195a8232b3ed768ac2809ddce8ca46 (diff) | |
[S390] Automatic IPL after dump
Provide new shutdown action "dump_reipl" for automatic ipl after dump.
Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/system.h')
| -rw-r--r-- | arch/s390/include/asm/system.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h index 3a8b26eb1f2..3f2ccb82b86 100644 --- a/arch/s390/include/asm/system.h +++ b/arch/s390/include/asm/system.h @@ -458,6 +458,22 @@ static inline unsigned short stap(void) return cpu_address; } +static inline u32 cksm(void *addr, unsigned long len) +{ + register unsigned long _addr asm("0") = (unsigned long) addr; + register unsigned long _len asm("1") = len; + unsigned long accu = 0; + + asm volatile( + "0:\n" + " cksm %0,%1\n" + " jnz 0b\n" + : "+d" (accu), "+d" (_addr), "+d" (_len) + : + : "cc", "memory"); + return accu; +} + extern void (*_machine_restart)(char *command); extern void (*_machine_halt)(void); extern void (*_machine_power_off)(void); |