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| author | Maciej W. Rozycki <macro@linux-mips.org> | 2015-04-04 00:27:10 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-04-08 01:10:17 +0200 |
| commit | 443c44032a54f9acf027a8e688380fddc809bc19 (patch) | |
| tree | 482d477dc139c712bec7f79212408c46e5e79409 /arch/mips/kernel/unaligned.c | |
| parent | MIPS: Respect the FCSR exception mask for `si_code' (diff) | |
| download | linux-443c44032a54f9acf027a8e688380fddc809bc19.tar.xz 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/unaligned.c')
0 files changed, 0 insertions, 0 deletions