MIPS: cp1emu: Fix ISA restrictions for cop1x_op instructions

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commit a5466d7bba upstream.

Commit 08a07904e1 ("MIPS: math-emu: Remove most ifdefery") removed
the #ifdef ISA conditions and switched to runtime detection. However,
according to the instruction set manual, the cop1x_op instructions are
available in >=MIPS32r2 as well. This fixes a problem on MIPS32r2
with the ntpd package which failed to execute with a SIGILL exit code due
to the fact that a madd.d instruction was not being emulated.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Fixes: 08a07904e1 ("MIPS: math-emu: Remove most ifdefery")
Cc: linux-mips@linux-mips.org
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/8173/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

...

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Markos Chandras 2014-10-21 10:21:54 +01:00 • committed by Luis Henriques

parent eb622aa247

commit 28058a0bd1

1 changed files with 2 additions and 2 deletions

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arch/mips/math-emu/cp1emu.c

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