sys/compat/linuxkpi/common/include/linux/timer.h

   1 /*-
   2  * Copyright (c) 2010 Isilon Systems, Inc.
   3  * Copyright (c) 2010 iX Systems, Inc.
   4  * Copyright (c) 2010 Panasas, Inc.
   5  * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice unmodified, this list of conditions, and the following
  13  *    disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  * $FreeBSD$
  30  */
  31 #ifndef _LINUX_TIMER_H_
  32 #define _LINUX_TIMER_H_
  33
  34 #include <linux/types.h>
  35
  36 #include <sys/param.h>
  37 #include <sys/kernel.h>
  38 #include <sys/callout.h>
  39
  40 struct timer_list {
  41         struct callout callout;
  42         union {
  43                 void (*function) (unsigned long);       /* < v4.15 */
  44                 void (*function_415) (struct timer_list *);
  45         };
  46         unsigned long data;
  47         int expires;
  48 };
  49
  50 extern unsigned long linux_timer_hz_mask;
  51
  52 #define TIMER_IRQSAFE   0x0001
  53
  54 #define from_timer(var, arg, field)                                     \
  55         container_of(arg, typeof(*(var)), field)
  56
  57 #define timer_setup(timer, func, flags) do {                            \
  58         CTASSERT(((flags) & ~TIMER_IRQSAFE) == 0);                      \
  59         (timer)->function_415 = (func);                                 \
  60         (timer)->data = (unsigned long)(timer);                         \
  61         callout_init(&(timer)->callout, 1);                             \
  62 } while (0)
  63
  64 #define setup_timer(timer, func, dat) do {                              \
  65         (timer)->function = (func);                                     \
  66         (timer)->data = (dat);                                          \
  67         callout_init(&(timer)->callout, 1);                     \
  68 } while (0)
  69
  70 #define __setup_timer(timer, func, dat, flags) do {                     \
  71         CTASSERT(((flags) & ~TIMER_IRQSAFE) == 0);                      \
  72         setup_timer(timer, func, dat);                                  \
  73 } while (0)
  74
  75 #define init_timer(timer) do {                                          \
  76         (timer)->function = NULL;                                       \
  77         (timer)->data = 0;                                              \
  78         callout_init(&(timer)->callout, 1);                     \
  79 } while (0)
  80
  81 extern void mod_timer(struct timer_list *, int);
  82 extern void add_timer(struct timer_list *);
  83 extern void add_timer_on(struct timer_list *, int cpu);
  84
  85 #define del_timer(timer)        (void)callout_stop(&(timer)->callout)
  86 #define del_timer_sync(timer)   (void)callout_drain(&(timer)->callout)
  87 #define timer_pending(timer)    callout_pending(&(timer)->callout)
  88 #define round_jiffies(j)        \
  89         ((int)(((j) + linux_timer_hz_mask) & ~linux_timer_hz_mask))
  90 #define round_jiffies_relative(j) round_jiffies(j)
  91 #define round_jiffies_up(j)     round_jiffies(j)
  92 #define round_jiffies_up_relative(j) round_jiffies_up(j)
  93
  94 #endif                                  /* _LINUX_TIMER_H_ */