diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/s390/include/asm/cputime.h | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/s390/include/asm/cputime.h')
| -rw-r--r-- | arch/s390/include/asm/cputime.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h new file mode 100644 index 000000000..cb729d111 --- /dev/null +++ b/arch/s390/include/asm/cputime.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright IBM Corp. 2004 + * + * Author: Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef _S390_CPUTIME_H +#define _S390_CPUTIME_H + +#include <linux/types.h> +#include <asm/timex.h> + +#define CPUTIME_PER_USEC 4096ULL +#define CPUTIME_PER_SEC (CPUTIME_PER_USEC * USEC_PER_SEC) + +/* We want to use full resolution of the CPU timer: 2**-12 micro-seconds. */ + +#define cmpxchg_cputime(ptr, old, new) cmpxchg64(ptr, old, new) + +/* + * Convert cputime to microseconds. + */ +static inline u64 cputime_to_usecs(const u64 cputime) +{ + return cputime >> 12; +} + +/* + * Convert cputime to nanoseconds. + */ +#define cputime_to_nsecs(cputime) tod_to_ns(cputime) + +u64 arch_cpu_idle_time(int cpu); + +#define arch_idle_time(cpu) arch_cpu_idle_time(cpu) + +#endif /* _S390_CPUTIME_H */ |