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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-07-08 10:20:04 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-07-29 09:11:39 +0200 |
| commit | 22362a0e23182d230527a5add690b4027860d7d3 (patch) | |
| tree | fbdd8176032b6351e78d0a02525459a9e9ec4f34 /arch/s390/kernel/head.S | |
| parent | s390/cio: Implement proper Link Incident Record handling (diff) | |
| download | linux-dev-22362a0e23182d230527a5add690b4027860d7d3.tar.xz linux-dev-22362a0e23182d230527a5add690b4027860d7d3.zip | |
s390/sclp: convert early sclp console code to C
The 31-bit assembler code for the early sclp console is error
prone as git commit fde24b54d976cc123506695c17db01438a11b673
"s390/sclp: clear upper register halves in _sclp_print_early"
has shown.
Convert the assembler code to C.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head.S')
| -rw-r--r-- | arch/s390/kernel/head.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index 59b7c6470567..63c77fdb619e 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -370,6 +370,7 @@ ENTRY(startup_kdump) xc 0x200(256),0x200 # partially clear lowcore xc 0x300(256),0x300 xc 0xe00(256),0xe00 + lctlg %c0,%c15,0x200(%r0) # initialize control registers stck __LC_LAST_UPDATE_CLOCK spt 6f-.LPG0(%r13) mvc __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13) |