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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2006-12-04 15:40:33 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-12-04 15:40:33 +0100 |
| commit | c6b5b847a7cf11f131c43fe0041443ec11697fc7 (patch) | |
| tree | d15fb7302bd446394ab373128be0a77826566e30 /include | |
| parent | [S390] cpcmd <-> __cpcmd calling issues (diff) | |
| download | linux-dev-c6b5b847a7cf11f131c43fe0041443ec11697fc7.tar.xz linux-dev-c6b5b847a7cf11f131c43fe0041443ec11697fc7.zip | |
[S390] cpu shutdown rework
Let one master cpu kill all other cpus instead of sending an external
interrupt to all other cpus so they can kill themselves.
Simplifies reipl/shutdown functions a lot.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-s390/smp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h index c3cf030ada4d..7097c96ed026 100644 --- a/include/asm-s390/smp.h +++ b/include/asm-s390/smp.h @@ -18,6 +18,7 @@ #include <asm/lowcore.h> #include <asm/sigp.h> +#include <asm/ptrace.h> /* s390 specific smp.c headers @@ -101,6 +102,13 @@ smp_call_function_on(void (*func) (void *info), void *info, func(info); return 0; } + +static inline void smp_send_stop(void) +{ + /* Disable all interrupts/machine checks */ + __load_psw_mask(PSW_KERNEL_BITS & ~PSW_MASK_MCHECK); +} + #define smp_cpu_not_running(cpu) 1 #define smp_get_cpu(cpu) ({ 0; }) #define smp_put_cpu(cpu) ({ 0; }) |