Fri Jul 28 10:37:28 2023 UTC ()
timecounter(9): Link to phk's timecounter paper for reference.

No functional change intended.


(riastradh)
diff -r1.74 -r1.75 src/sys/kern/kern_tc.c
cvs diff -r1.74 -r1.75 src/sys/kern/kern_tc.c (expand / switch to unified diff)

--- src/sys/kern/kern_tc.c 2023/07/27 01:48:49 1.74
+++ src/sys/kern/kern_tc.c 2023/07/28 10:37:28 1.75
@@ -1,14 +1,14 @@ @@ -1,14 +1,14 @@
1/* $NetBSD: kern_tc.c,v 1.74 2023/07/27 01:48:49 riastradh Exp $ */ 1/* $NetBSD: kern_tc.c,v 1.75 2023/07/28 10:37:28 riastradh Exp $ */
2 2
3/*- 3/*-
4 * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc. 4 * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * This code is derived from software contributed to The NetBSD Foundation 7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Doran. 8 * by Andrew Doran.
9 * 9 *
10 * Redistribution and use in source and binary forms, with or without 10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions 11 * modification, are permitted provided that the following conditions
12 * are met: 12 * are met:
13 * 1. Redistributions of source code must retain the above copyright 13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer. 14 * notice, this list of conditions and the following disclaimer.
@@ -28,29 +28,33 @@ @@ -28,29 +28,33 @@
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE. 29 * POSSIBILITY OF SUCH DAMAGE.
30 */ 30 */
31 31
32/*- 32/*-
33 * ---------------------------------------------------------------------------- 33 * ----------------------------------------------------------------------------
34 * "THE BEER-WARE LICENSE" (Revision 42): 34 * "THE BEER-WARE LICENSE" (Revision 42):
35 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you 35 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you
36 * can do whatever you want with this stuff. If we meet some day, and you think 36 * can do whatever you want with this stuff. If we meet some day, and you think
37 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 37 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
38 * --------------------------------------------------------------------------- 38 * ---------------------------------------------------------------------------
39 */ 39 */
40 40
 41/*
 42 * https://papers.freebsd.org/2002/phk-timecounters.files/timecounter.pdf
 43 */
 44
41#include <sys/cdefs.h> 45#include <sys/cdefs.h>
42/* __FBSDID("$FreeBSD: src/sys/kern/kern_tc.c,v 1.166 2005/09/19 22:16:31 andre Exp $"); */ 46/* __FBSDID("$FreeBSD: src/sys/kern/kern_tc.c,v 1.166 2005/09/19 22:16:31 andre Exp $"); */
43__KERNEL_RCSID(0, "$NetBSD: kern_tc.c,v 1.74 2023/07/27 01:48:49 riastradh Exp $"); 47__KERNEL_RCSID(0, "$NetBSD: kern_tc.c,v 1.75 2023/07/28 10:37:28 riastradh Exp $");
44 48
45#ifdef _KERNEL_OPT 49#ifdef _KERNEL_OPT
46#include "opt_ntp.h" 50#include "opt_ntp.h"
47#endif 51#endif
48 52
49#include <sys/param.h> 53#include <sys/param.h>
50 54
51#include <sys/atomic.h> 55#include <sys/atomic.h>
52#include <sys/evcnt.h> 56#include <sys/evcnt.h>
53#include <sys/kauth.h> 57#include <sys/kauth.h>
54#include <sys/kernel.h> 58#include <sys/kernel.h>
55#include <sys/lock.h> 59#include <sys/lock.h>
56#include <sys/mutex.h> 60#include <sys/mutex.h>