1/*
 2 * arch/arm/include/asm/mach/time.h
 3 *
 4 * Copyright (C) 2004 MontaVista Software, Inc.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10#ifndef __ASM_ARM_MACH_TIME_H
11#define __ASM_ARM_MACH_TIME_H
12
13#include <linux/sysdev.h>
14
15/*
16 * This is our kernel timer structure.
17 *
18 * - init
19 *   Initialise the kernels jiffy timer source, claim interrupt
20 *   using setup_irq.  This is called early on during initialisation
21 *   while interrupts are still disabled on the local CPU.
22 * - suspend
23 *   Suspend the kernel jiffy timer source, if necessary.  This
24 *   is called with interrupts disabled, after all normal devices
25 *   have been suspended.  If no action is required, set this to
26 *   NULL.
27 * - resume
28 *   Resume the kernel jiffy timer source, if necessary.  This
29 *   is called with interrupts disabled before any normal devices
30 *   are resumed.  If no action is required, set this to NULL.
31 * - offset
32 *   Return the timer offset in microseconds since the last timer
33 *   interrupt.  Note: this must take account of any unprocessed
34 *   timer interrupt which may be pending.
35 */
36struct sys_timer {
37	void			(*init)(void);
38	void			(*suspend)(void);
39	void			(*resume)(void);
40#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
41	unsigned long		(*offset)(void);
42#endif
43};
44
45extern void timer_tick(void);
46
47#endif

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * arch/arm/include/asm/mach/time.h
 4 *
 5 * Copyright (C) 2004 MontaVista Software, Inc.
 
 
 
 
 6 */
 7#ifndef __ASM_ARM_MACH_TIME_H
 8#define __ASM_ARM_MACH_TIME_H
 9
10typedef void (*clock_access_fn)(struct timespec64 *);
11extern int register_persistent_clock(clock_access_fn read_persistent);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
12
13#endif