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author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-10-25 10:10:38 -0400 |
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committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 10:10:19 -0400 |
commit | f6649a7e5a9ee99e9623878f4a5579cc2f6cdd51 (patch) | |
tree | 183438313c7593565980a1445f208e0ba30162cd /arch/s390/kernel/entry.S | |
parent | 1e54622e0403891b10f2105663e0f9dd595a1f17 (diff) |
[S390] cleanup lowcore access from external interrupts
Read external interrupts parameters from the lowcore in the first
level interrupt handler in entry[64].S.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry.S')
-rw-r--r-- | arch/s390/kernel/entry.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index adf25246f72e..736d7010629e 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S | |||
@@ -722,7 +722,8 @@ ext_no_vtime: | |||
722 | l %r9,__LC_THREAD_INFO # load pointer to thread_info struct | 722 | l %r9,__LC_THREAD_INFO # load pointer to thread_info struct |
723 | TRACE_IRQS_OFF | 723 | TRACE_IRQS_OFF |
724 | la %r2,SP_PTREGS(%r15) # address of register-save area | 724 | la %r2,SP_PTREGS(%r15) # address of register-save area |
725 | lh %r3,__LC_EXT_INT_CODE # get interruption code | 725 | l %r3,__LC_CPU_ADDRESS # get cpu address + interruption code |
726 | l %r4,__LC_EXT_PARAMS # get external parameters | ||
726 | l %r1,BASED(.Ldo_extint) | 727 | l %r1,BASED(.Ldo_extint) |
727 | basr %r14,%r1 | 728 | basr %r14,%r1 |
728 | b BASED(io_return) | 729 | b BASED(io_return) |