Tue Apr 11 12:55:59 2023 UTC ()
com(4): Note timecounter_lock in lock order comments.


(riastradh)
diff -r1.382 -r1.383 src/sys/dev/ic/com.c
cvs diff -r1.382 -r1.383 src/sys/dev/ic/com.c (expand / switch to unified diff)

--- src/sys/dev/ic/com.c 2022/12/09 00:35:58 1.382
+++ src/sys/dev/ic/com.c 2023/04/11 12:55:59 1.383
@@ -1,14 +1,14 @@ @@ -1,14 +1,14 @@
1/* $NetBSD: com.c,v 1.382 2022/12/09 00:35:58 knakahara Exp $ */ 1/* $NetBSD: com.c,v 1.383 2023/04/11 12:55:59 riastradh Exp $ */
2 2
3/*- 3/*-
4 * Copyright (c) 1998, 1999, 2004, 2008 The NetBSD Foundation, Inc. 4 * Copyright (c) 1998, 1999, 2004, 2008 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 Charles M. Hannum. 8 * by Charles M. Hannum.
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.
@@ -57,30 +57,31 @@ @@ -57,30 +57,31 @@
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE. 58 * SUCH DAMAGE.
59 * 59 *
60 * @(#)com.c 7.5 (Berkeley) 5/16/91 60 * @(#)com.c 7.5 (Berkeley) 5/16/91
61 */ 61 */
62 62
63/* 63/*
64 * COM driver, uses National Semiconductor NS16450/NS16550AF UART 64 * COM driver, uses National Semiconductor NS16450/NS16550AF UART
65 * Supports automatic hardware flow control on StarTech ST16C650A UART 65 * Supports automatic hardware flow control on StarTech ST16C650A UART
66 * 66 *
67 * Lock order: 67 * Lock order:
68 * tty_lock (IPL_VM) 68 * tty_lock (IPL_VM)
69 * -> sc->sc_lock (IPL_HIGH) 69 * -> sc->sc_lock (IPL_HIGH)
 70 * -> timecounter_lock (IPL_HIGH)
70 */ 71 */
71 72
72#include <sys/cdefs.h> 73#include <sys/cdefs.h>
73__KERNEL_RCSID(0, "$NetBSD: com.c,v 1.382 2022/12/09 00:35:58 knakahara Exp $"); 74__KERNEL_RCSID(0, "$NetBSD: com.c,v 1.383 2023/04/11 12:55:59 riastradh Exp $");
74 75
75#include "opt_com.h" 76#include "opt_com.h"
76#include "opt_ddb.h" 77#include "opt_ddb.h"
77#include "opt_kgdb.h" 78#include "opt_kgdb.h"
78#include "opt_lockdebug.h" 79#include "opt_lockdebug.h"
79#include "opt_multiprocessor.h" 80#include "opt_multiprocessor.h"
80#include "opt_ntp.h" 81#include "opt_ntp.h"
81 82
82/* The COM16650 option was renamed to COM_16650. */ 83/* The COM16650 option was renamed to COM_16650. */
83#ifdef COM16650 84#ifdef COM16650
84#error Obsolete COM16650 option; use COM_16650 instead. 85#error Obsolete COM16650 option; use COM_16650 instead.
85#endif 86#endif
86 87