diff options
| author |   Hendrik Brueckner <brueckner@linux.ibm.com> | 2018-10-25 16:58:15 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-02-22 09:19:54 +0100 |
| commit | 869f4f98fafadddb3a871b9513f24a44479d8296 (patch) | |
| tree | 144ab4e9a70e7228393f08252a57a9c6f4aa8166 /arch/s390/include/asm/cpu_mcf.h | |
| parent | s390/cpu_mf: replace stcctm5() with the stcctm() function (diff) | |
| download | linux-dev-869f4f98fafadddb3a871b9513f24a44479d8296.tar.xz linux-dev-869f4f98fafadddb3a871b9513f24a44479d8296.zip | |
s390/cpum_cf: introduce kernel_cpumcf_avail() function
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>
Diffstat (limited to 'arch/s390/include/asm/cpu_mcf.h')
| -rw-r--r-- | arch/s390/include/asm/cpu_mcf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/cpu_mcf.h b/arch/s390/include/asm/cpu_mcf.h index 12a4224560bc..7121365a85d9 100644 --- a/arch/s390/include/asm/cpu_mcf.h +++ b/arch/s390/include/asm/cpu_mcf.h @@ -59,6 +59,7 @@ struct cpu_cf_events { }; DECLARE_PER_CPU(struct cpu_cf_events, cpu_cf_events); +bool kernel_cpumcf_avail(void); int __kernel_cpumcf_begin(void); unsigned long kernel_cpumcf_alert(int clear); void __kernel_cpumcf_end(void); |