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authorHeiko Carstens <heiko.carstens@de.ibm.com>2006-12-04 15:40:33 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-12-04 15:40:33 +0100
commitc6b5b847a7cf11f131c43fe0041443ec11697fc7 (patch)
treed15fb7302bd446394ab373128be0a77826566e30 /include/asm-s390
parent740b5706b9c4b3767f597b3ea76654c6f2a800b2 (diff)
downloadop-kernel-dev-c6b5b847a7cf11f131c43fe0041443ec11697fc7.zip
op-kernel-dev-c6b5b847a7cf11f131c43fe0041443ec11697fc7.tar.gz
[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/asm-s390')
-rw-r--r--include/asm-s390/smp.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index c3cf030..7097c96 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; })
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