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Googler9398cc32022-12-02 17:21:52 +08001/* SPDX-License-Identifier: GPL-2.0 */
Googleraf606d22022-10-26 21:40:12 -07002#ifndef _ASM_POWERPC_TIMEX_H
3#define _ASM_POWERPC_TIMEX_H
4
5#ifdef __KERNEL__
6
7/*
8 * PowerPC architecture timex specifications
9 */
10
11#include <asm/cputable.h>
12#include <asm/reg.h>
13
14#define CLOCK_TICK_RATE 1024000 /* Underlying HZ */
15
16typedef unsigned long cycles_t;
17
18static inline cycles_t get_cycles(void)
19{
Googler9398cc32022-12-02 17:21:52 +080020 if (IS_ENABLED(CONFIG_PPC_BOOK3S_601))
21 return 0;
22
Googleraf606d22022-10-26 21:40:12 -070023 return mftb();
Googleraf606d22022-10-26 21:40:12 -070024}
Googleraf606d22022-10-26 21:40:12 -070025
26#endif /* __KERNEL__ */
27#endif /* _ASM_POWERPC_TIMEX_H */