Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2012 - 2014 Cisco Systems
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #ifndef __TIMER_INTERNAL_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #define __TIMER_INTERNAL_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define TIMER_MULTIPLIER 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define TIMER_MIN_DELTA  500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) enum time_travel_mode {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	TT_MODE_OFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	TT_MODE_BASIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	TT_MODE_INFCPU,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	TT_MODE_EXTERNAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #ifdef CONFIG_UML_TIME_TRAVEL_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct time_travel_event {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	unsigned long long time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	void (*fn)(struct time_travel_event *d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	bool pending, onstack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) extern enum time_travel_mode time_travel_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) void time_travel_sleep(unsigned long long duration);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) time_travel_set_event_fn(struct time_travel_event *e,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 			 void (*fn)(struct time_travel_event *d))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	e->fn = fn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) void __time_travel_propagate_time(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static inline void time_travel_propagate_time(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	if (time_travel_mode == TT_MODE_EXTERNAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		__time_travel_propagate_time();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) void __time_travel_wait_readable(int fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static inline void time_travel_wait_readable(int fd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	if (time_travel_mode == TT_MODE_EXTERNAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		__time_travel_wait_readable(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) void time_travel_add_irq_event(struct time_travel_event *e);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct time_travel_event {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define time_travel_mode TT_MODE_OFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static inline void time_travel_sleep(unsigned long long duration)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /* this is a macro so the event/function need not exist */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define time_travel_set_event_fn(e, fn) do {} while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static inline void time_travel_propagate_time(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static inline void time_travel_wait_readable(int fd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #endif /* CONFIG_UML_TIME_TRAVEL_SUPPORT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)  * Without CONFIG_UML_TIME_TRAVEL_SUPPORT this is a linker error if used,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)  * which is intentional since we really shouldn't link it in that case.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) void time_travel_ndelay(unsigned long nsec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #endif /* __TIMER_INTERNAL_H__ */