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| author | Martin Schwidefsky | 2011-10-30 15:16:58 +0100 |
|---|---|---|
| committer | Martin Schwidefsky | 2011-10-30 15:16:44 +0100 |
| commit | d98e19ccef10c5aadccc4ffe2925e4099ff9606a (patch) | |
| tree | c459bd945c3e43d6a0f952cf687769f689f29628 /arch/s390/kernel/head31.S | |
| parent | [S390] dasd: re-initialize read_conf buffer for retries (diff) | |
| download | kernel-qcow2-linux-d98e19ccef10c5aadccc4ffe2925e4099ff9606a.tar.gz kernel-qcow2-linux-d98e19ccef10c5aadccc4ffe2925e4099ff9606a.tar.xz kernel-qcow2-linux-d98e19ccef10c5aadccc4ffe2925e4099ff9606a.zip | |
[S390] smp: external call vs. emergency signal
Use a sigp sense running to decide which signal processor order to use
for an ipi. If the target cpu is running use external call, if the target
cpu is not running use emergency signal.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head31.S')
| -rw-r--r-- | arch/s390/kernel/head31.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S index f21954b44dc1..d3f1ab7d90ad 100644 --- a/arch/s390/kernel/head31.S +++ b/arch/s390/kernel/head31.S @@ -92,7 +92,7 @@ ENTRY(_stext) .LPG3: # check control registers stctl %c0,%c15,0(%r15) - oi 2(%r15),0x40 # enable sigp emergency signal + oi 2(%r15),0x60 # enable sigp emergency & external call oi 0(%r15),0x10 # switch on low address protection lctl %c0,%c15,0(%r15) |