diff options
| author | Paul Burton <paul.burton@mips.com> | 2018-11-07 23:14:05 +0000 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2018-11-09 10:23:16 -0800 |
| commit | 5328f7422e4b195a36b0ed021ce8cc95bd8e0e59 (patch) | |
| tree | 1c69fb05a6fed4dfe2d3c072f98816fa6296d085 /arch/mips/kernel/genex.S | |
| parent | b2e628a8f9993b240597432e39e6fa4950638211 (diff) | |
MIPS: traps: Never enable FPU when CONFIG_MIPS_FP_SUPPORT=n
When CONFIG_MIPS_FP_SUPPORT=n we don't support floating point, so we'll
never need to enable the FPU. Avoid doing so on a Co-Processor Unusable
exception (do_cpu), and remove the Floating Point Exception handler
(do_fpe) which should never be executed when the FPU is disabled.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/21007/
Cc: linux-mips@linux-mips.org
Diffstat (limited to 'arch/mips/kernel/genex.S')
| -rw-r--r-- | arch/mips/kernel/genex.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index 6c257b52f57f..6c0c0d0c30bd 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -553,7 +553,9 @@ NESTED(nmi_handler, PT_SIZE, sp) BUILD_HANDLER ov ov sti silent /* #12 */ BUILD_HANDLER tr tr sti silent /* #13 */ BUILD_HANDLER msa_fpe msa_fpe msa_fpe silent /* #14 */ +#ifdef CONFIG_MIPS_FP_SUPPORT BUILD_HANDLER fpe fpe fpe silent /* #15 */ +#endif BUILD_HANDLER ftlb ftlb none silent /* #16 */ BUILD_HANDLER msa msa sti silent /* #21 */ BUILD_HANDLER mdmx mdmx sti silent /* #22 */ |