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/* 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) void account_idle_time_irq(void); #endif /* _S390_CPUTIME_H */
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