1 /*
2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
3 * Copyright (C) 2007 The Regents of the University of California.
4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
6 * UCRL-CODE-235197
7 *
8 * This file is part of the SPL, Solaris Porting Layer.
9 *
10 * The SPL is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * The SPL is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 * for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with the SPL. If not, see <http://www.gnu.org/licenses/>.
22 */
23
24 #ifndef _SPL_TIMER_H
25 #define _SPL_TIMER_H
26
27 #include <linux/module.h>
28 #include <linux/delay.h>
29 #include <linux/sched.h>
30 #include <linux/time.h>
31 #include <linux/timer.h>
32
33 #define lbolt ((clock_t)jiffies)
34 #define lbolt64 ((int64_t)get_jiffies_64())
35
36 #define ddi_get_lbolt() ((clock_t)jiffies)
37 #define ddi_get_lbolt64() ((int64_t)get_jiffies_64())
38
39 #define ddi_time_before(a, b) (typecheck(clock_t, a) && \
40 typecheck(clock_t, b) && \
41 ((a) - (b) < 0))
42 #define ddi_time_after(a, b) ddi_time_before(b, a)
43 #define ddi_time_before_eq(a, b) (!ddi_time_after(a, b))
44 #define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a)
45
46 #define ddi_time_before64(a, b) (typecheck(int64_t, a) && \
47 typecheck(int64_t, b) && \
48 ((a) - (b) < 0))
49 #define ddi_time_after64(a, b) ddi_time_before64(b, a)
50 #define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b))
51 #define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a)
52
53 #define delay(ticks) schedule_timeout_uninterruptible(ticks)
54
55 #define SEC_TO_TICK(sec) ((sec) * HZ)
56 #define MSEC_TO_TICK(ms) msecs_to_jiffies(ms)
57 #define USEC_TO_TICK(us) usecs_to_jiffies(us)
58 #define NSEC_TO_TICK(ns) usecs_to_jiffies(ns / NSEC_PER_USEC)
59
60 #ifndef from_timer
61 #define from_timer(var, timer, timer_field) \
62 container_of(timer, typeof(*var), timer_field)
63 #endif
64
65 #ifdef HAVE_KERNEL_TIMER_FUNCTION_TIMER_LIST
66 typedef struct timer_list *spl_timer_list_t;
67 #else
68 typedef unsigned long spl_timer_list_t;
69 #endif
70
71 #ifndef HAVE_KERNEL_TIMER_SETUP
72
73 static inline void
timer_setup(struct timer_list * timer,void (* func)(spl_timer_list_t),u32 fl)74 timer_setup(struct timer_list *timer, void (*func)(spl_timer_list_t), u32 fl)
75 {
76 #ifdef HAVE_KERNEL_TIMER_LIST_FLAGS
77 (timer)->flags = fl;
78 #endif
79 init_timer(timer);
80 setup_timer(timer, func, (spl_timer_list_t)(timer));
81 }
82
83 #endif /* HAVE_KERNEL_TIMER_SETUP */
84
85 #endif /* _SPL_TIMER_H */
86