drm: Import linux/timer.h from FreeBSD's OFED stack
authorFrançois Tigeot <ftigeot@wolfpond.org>
Tue, 22 Apr 2014 18:14:01 +0000 (20:14 +0200)
committerFrançois Tigeot <ftigeot@wolfpond.org>
Tue, 22 Apr 2014 18:14:42 +0000 (20:14 +0200)
sys/dev/drm/include/linux/timer.h [new file with mode: 0644]

diff --git a/sys/dev/drm/include/linux/timer.h b/sys/dev/drm/include/linux/timer.h
new file mode 100644 (file)
index 0000000..a497334
--- /dev/null
@@ -0,0 +1,89 @@
+/*-
+ * Copyright (c) 2010 Isilon Systems, Inc.
+ * Copyright (c) 2010 iX Systems, Inc.
+ * Copyright (c) 2010 Panasas, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice unmodified, this list of conditions, and the following
+ *    disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _LINUX_TIMER_H_
+#define _LINUX_TIMER_H_
+
+#include <linux/types.h>
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/callout.h>
+
+struct timer_list {
+       struct callout  timer_callout;
+       void            (*function)(unsigned long);
+       unsigned long   data;
+       unsigned long   expires;
+};
+
+static inline void
+_timer_fn(void *context)
+{
+       struct timer_list *timer;
+
+       timer = context;
+       timer->function(timer->data);
+}
+
+#define        setup_timer(timer, func, dat)                                   \
+do {                                                                   \
+       (timer)->function = (func);                                     \
+       (timer)->data = (dat);                                          \
+       callout_init(&(timer)->timer_callout, CALLOUT_MPSAFE);          \
+} while (0)
+
+#define        init_timer(timer)                                               \
+do {                                                                   \
+       (timer)->function = NULL;                                       \
+       (timer)->data = 0;                                              \
+       callout_init(&(timer)->timer_callout, CALLOUT_MPSAFE);          \
+} while (0)
+
+#define        mod_timer(timer, exp)                                           \
+do {                                                                   \
+       (timer)->expires = (exp);                                       \
+       callout_reset(&(timer)->timer_callout, (exp) - jiffies,         \
+           _timer_fn, (timer));                                        \
+} while (0)
+
+#define        add_timer(timer)                                                \
+       callout_reset(&(timer)->timer_callout,                          \
+           (timer)->expires - jiffies, _timer_fn, (timer))
+
+#define        del_timer(timer)        callout_stop(&(timer)->timer_callout)
+#define        del_timer_sync(timer)   callout_drain(&(timer)->timer_callout)
+
+#define        timer_pending(timer)    callout_pending(&(timer)->timer_callout)
+
+static inline unsigned long
+round_jiffies(unsigned long j)
+{
+       return roundup(j, hz);
+}
+
+#endif /* _LINUX_TIMER_H_ */