powerpc: Remove facility loadups on transactional {fp, vec, vsx} unavailable

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After handling a transactional FP, Altivec or VSX unavailable exception.
The return to userspace code will detect that the TIF_RESTORE_TM bit is
set and call restore_tm_state(). restore_tm_state() will call
restore_math() to ensure that the correct facilities are loaded.

This means that all the loadup code in {fp,altivec,vsx}_unavailable_tm()
is doing pointless work and can simply be removed.

Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Cyril Bur 2017-11-02 14:09:06 +11:00 • committed by Michael Ellerman

parent eb5c3f1c86

commit 6f700d38a8

1 changed files with 0 additions and 30 deletions

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arch/powerpc/kernel/traps.c

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