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| author | Michael Holzheu <holzheu@linux.vnet.ibm.com> | 2011-10-30 18:16:40 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 18:16:42 +0400 |
| commit | 60a0c68df2632feaa4a986af084650d1165d89c5 (patch) | |
| tree | f55907defeab43de02a5a3127c8d5a694a21b3a2 /arch/s390/kernel/base.S | |
| parent | 7f0bf656c66e4292e965c95fd9de55c72b6578bb (diff) | |
| download | linux-60a0c68df2632feaa4a986af084650d1165d89c5.tar.xz | |
[S390] kdump backend code
This patch provides the architecture specific part of the s390 kdump
support.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/base.S')
| -rw-r--r-- | arch/s390/kernel/base.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S index 255435663bf8..f8828d38fa6e 100644 --- a/arch/s390/kernel/base.S +++ b/arch/s390/kernel/base.S @@ -86,6 +86,8 @@ s390_base_pgm_handler_fn: ENTRY(diag308_reset) larl %r4,.Lctlregs # Save control registers stctg %c0,%c15,0(%r4) + larl %r4,.Lfpctl # Floating point control register + stfpc 0(%r4) larl %r4,.Lrestart_psw # Setup restart PSW at absolute 0 lghi %r3,0 lg %r4,0(%r4) # Save PSW @@ -99,6 +101,8 @@ ENTRY(diag308_reset) sam64 # Switch to 64 bit addressing mode larl %r4,.Lctlregs # Restore control registers lctlg %c0,%c15,0(%r4) + larl %r4,.Lfpctl # Restore floating point ctl register + lfpc 0(%r4) br %r14 .align 16 .Lrestart_psw: @@ -110,6 +114,8 @@ ENTRY(diag308_reset) .rept 16 .quad 0 .endr +.Lfpctl: + .long 0 .previous #else /* CONFIG_64BIT */ |