1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * sched_clock.h: support for extending counters to full 64-bit ns counter
5 #ifndef LINUX_SCHED_CLOCK
6 #define LINUX_SCHED_CLOCK
8 #ifdef CONFIG_GENERIC_SCHED_CLOCK
9 extern void generic_sched_clock_init(void);
11 extern void sched_clock_register(u64 (*read)(void), int bits,
14 static inline void generic_sched_clock_init(void) { }
16 static inline void sched_clock_register(u64 (*read)(void), int bits,