timer.h

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    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 _LINUXKPI_LINUX_TIMER_H_
   32 #define _LINUXKPI_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 int 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 extern int del_timer(struct timer_list *);
   85 extern int del_timer_sync(struct timer_list *);
   86 
   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                                  /* _LINUXKPI_LINUX_TIMER_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/compat/linuxkpi/common/include/linux/timer.h

FreeBSD/Linux Kernel Cross Reference
sys/compat/linuxkpi/common/include/linux/timer.h