blob: 1ba6da05e304c6f7177f8077be37fb30c34a0bfd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __SBI_TIMER_H__
#define __SBI_TIMER_H__
#include <sbi/sbi_types.h>
/** Timer hardware device */
struct sbi_timer_device {
/** Name of the timer operations */
char name[32];
/** Get free-running timer value */
u64 (*timer_value)(void);
/** Start timer event for current HART */
void (*timer_event_start)(u64 next_event);
/** Stop timer event for current HART */
void (*timer_event_stop)(void);
};
struct sbi_scratch;
/** Get timer value for current HART */
u64 sbi_timer_value(void);
/** Get virtualized timer value for current HART */
u64 sbi_timer_virt_value(void);
/** Get timer delta value for current HART */
u64 sbi_timer_get_delta(void);
/** Set timer delta value for current HART */
void sbi_timer_set_delta(ulong delta);
/** Set upper 32-bits of timer delta value for current HART */
void sbi_timer_set_delta_upper(ulong delta_upper);
/** Start timer event for current HART */
void sbi_timer_event_start(u64 next_event);
/** Process timer event for current HART */
void sbi_timer_process(void);
/** Get current timer device */
const struct sbi_timer_device *sbi_timer_get_device(void);
/** Register timer device */
void sbi_timer_set_device(const struct sbi_timer_device *dev);
/* Initialize timer */
int sbi_timer_init(struct sbi_scratch *scratch, bool cold_boot);
/* Exit timer */
void sbi_timer_exit(struct sbi_scratch *scratch);
#endif
|
