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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2012 - 2014 Cisco Systems
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
*/
#ifndef __TIMER_INTERNAL_H__
#define __TIMER_INTERNAL_H__
#include <linux/list.h>
#define TIMER_MULTIPLIER 256
#define TIMER_MIN_DELTA 500
enum time_travel_mode {
TT_MODE_OFF,
TT_MODE_BASIC,
TT_MODE_INFCPU,
};
#ifdef CONFIG_UML_TIME_TRAVEL_SUPPORT
struct time_travel_event {
unsigned long long time;
void (*fn)(struct time_travel_event *d);
struct list_head list;
bool pending, onstack;
};
extern enum time_travel_mode time_travel_mode;
void time_travel_sleep(unsigned long long duration);
static inline void
time_travel_set_event_fn(struct time_travel_event *e,
void (*fn)(struct time_travel_event *d))
{
e->fn = fn;
}
#else
struct time_travel_event {
};
#define time_travel_mode TT_MODE_OFF
static inline void time_travel_sleep(unsigned long long duration)
{
}
/* this is a macro so the event/function need not exist */
#define time_travel_set_event_fn(e, fn) do {} while (0)
#endif /* CONFIG_UML_TIME_TRAVEL_SUPPORT */
#endif /* __TIMER_INTERNAL_H__ */
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