s390/cpum_cf: introduce kernel_cpumcf_avail() function

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A preparation to move out common CPU-MF counter facility support
functions, first introduce a function that indicates whether the
support is ready to use.

Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Hendrik Brueckner 2018-10-25 16:58:15 +02:00 • committed by Martin Schwidefsky

parent 346d034d7f

commit 869f4f98fa

2 changed files with 18 additions and 3 deletions

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1

arch/s390/include/asm/cpu_mcf.h

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20

arch/s390/kernel/perf_cpum_cf.c

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