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author | Maciej W. Rozycki <macro@linux-mips.org> | 2015-04-03 23:27:10 +0100 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2015-04-08 01:10:17 +0200 |
commit | 443c44032a54f9acf027a8e688380fddc809bc19 (patch) | |
tree | 482d477dc139c712bec7f79212408c46e5e79409 /arch/mips/kernel/smp-cps.c | |
parent | ed2d72c1eb3643b7c109bdf387563d9b9a30c279 (diff) | |
download | talos-op-linux-443c44032a54f9acf027a8e688380fddc809bc19.tar.gz talos-op-linux-443c44032a54f9acf027a8e688380fddc809bc19.zip |
MIPS: Always clear FCSR cause bits after emulation
Clear any FCSR cause bits recorded in the saved FPU context after
emulation in all cases rather than in `do_fpe' only, so that any
unmasked IEEE 754 exception left from emulation does not cause a fatal
kernel-mode FPE hardware exception with the CTC1 instruction used by the
kernel to subsequently restore FCSR hardware from the saved FPU context.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9704/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/smp-cps.c')
0 files changed, 0 insertions, 0 deletions