xref: /linux/include/asm-generic/timex.h (revision b2441318)
1*b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */
2ae49e807SArnd Bergmann #ifndef __ASM_GENERIC_TIMEX_H
3ae49e807SArnd Bergmann #define __ASM_GENERIC_TIMEX_H
4ae49e807SArnd Bergmann 
5ae49e807SArnd Bergmann /*
6ae49e807SArnd Bergmann  * If you have a cycle counter, return the value here.
7ae49e807SArnd Bergmann  */
8ae49e807SArnd Bergmann typedef unsigned long cycles_t;
9ae49e807SArnd Bergmann #ifndef get_cycles
get_cycles(void)10ae49e807SArnd Bergmann static inline cycles_t get_cycles(void)
11ae49e807SArnd Bergmann {
12ae49e807SArnd Bergmann 	return 0;
13ae49e807SArnd Bergmann }
14ae49e807SArnd Bergmann #endif
15ae49e807SArnd Bergmann 
16ae49e807SArnd Bergmann /*
17ae49e807SArnd Bergmann  * Architectures are encouraged to implement read_current_timer
18ae49e807SArnd Bergmann  * and define this in order to avoid the expensive delay loop
19ae49e807SArnd Bergmann  * calibration during boot.
20ae49e807SArnd Bergmann  */
21ae49e807SArnd Bergmann #undef ARCH_HAS_READ_CURRENT_TIMER
22ae49e807SArnd Bergmann 
23ae49e807SArnd Bergmann #endif /* __ASM_GENERIC_TIMEX_H */
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