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 extern int timer_delete_sync(struct timer_list *); 87 extern int timer_shutdown_sync(struct timer_list *); 88 89 #define timer_pending(timer) callout_pending(&(timer)->callout) 90 #define round_jiffies(j) \ 91 ((int)(((j) + linux_timer_hz_mask) & ~linux_timer_hz_mask)) 92 #define round_jiffies_relative(j) round_jiffies(j) 93 #define round_jiffies_up(j) round_jiffies(j) 94 #define round_jiffies_up_relative(j) round_jiffies_up(j) 95 96 #endif /* _LINUXKPI_LINUX_TIMER_H_ */ 97