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authorHendrik Brueckner <brueckner@linux.ibm.com>2018-10-25 14:58:15 (GMT)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2019-02-22 08:19:54 (GMT)
commit869f4f98fafadddb3a871b9513f24a44479d8296 (patch)
tree144ab4e9a70e7228393f08252a57a9c6f4aa8166 /arch/s390/include
parent346d034d7f13da9eb135458a2f6cf14c9b77a637 (diff)
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')
-rw-r--r--arch/s390/include/asm/cpu_mcf.h1
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 12a4224..7121365 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);

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