Sun Dec 1 16:44:11 2019 UTC ()
__cacheline_aligned on a lock.


(ad)
diff -r1.66 -r1.67 src/sys/uvm/uvm_device.c
cvs diff -r1.66 -r1.67 src/sys/uvm/uvm_device.c (expand / switch to unified diff)

--- src/sys/uvm/uvm_device.c 2017/10/28 00:37:13 1.66
+++ src/sys/uvm/uvm_device.c 2019/12/01 16:44:11 1.67
@@ -1,14 +1,14 @@ @@ -1,14 +1,14 @@
1/* $NetBSD: uvm_device.c,v 1.66 2017/10/28 00:37:13 pgoyette Exp $ */ 1/* $NetBSD: uvm_device.c,v 1.67 2019/12/01 16:44:11 ad Exp $ */
2 2
3/* 3/*
4 * Copyright (c) 1997 Charles D. Cranor and Washington University. 4 * Copyright (c) 1997 Charles D. Cranor and Washington University.
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without 7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions 8 * modification, are permitted provided that the following conditions
9 * are met: 9 * are met:
10 * 1. Redistributions of source code must retain the above copyright 10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer. 11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright 12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the 13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution. 14 * documentation and/or other materials provided with the distribution.
@@ -22,49 +22,49 @@ @@ -22,49 +22,49 @@
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * 26 *
27 * from: Id: uvm_device.c,v 1.1.2.9 1998/02/06 05:11:47 chs Exp 27 * from: Id: uvm_device.c,v 1.1.2.9 1998/02/06 05:11:47 chs Exp
28 */ 28 */
29 29
30/* 30/*
31 * uvm_device.c: the device pager. 31 * uvm_device.c: the device pager.
32 */ 32 */
33 33
34#include <sys/cdefs.h> 34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: uvm_device.c,v 1.66 2017/10/28 00:37:13 pgoyette Exp $"); 35__KERNEL_RCSID(0, "$NetBSD: uvm_device.c,v 1.67 2019/12/01 16:44:11 ad Exp $");
36 36
37#include "opt_uvmhist.h" 37#include "opt_uvmhist.h"
38 38
39#include <sys/param.h> 39#include <sys/param.h>
40#include <sys/systm.h> 40#include <sys/systm.h>
41#include <sys/conf.h> 41#include <sys/conf.h>
42#include <sys/proc.h> 42#include <sys/proc.h>
43#include <sys/kmem.h> 43#include <sys/kmem.h>
44 44
45#include <uvm/uvm.h> 45#include <uvm/uvm.h>
46#include <uvm/uvm_device.h> 46#include <uvm/uvm_device.h>
47#include <uvm/uvm_pmap.h> 47#include <uvm/uvm_pmap.h>
48 48
49/* 49/*
50 * private global data structure 50 * private global data structure
51 * 51 *
52 * we keep a list of active device objects in the system. 52 * we keep a list of active device objects in the system.
53 */ 53 */
54 54
55LIST_HEAD(udv_list_struct, uvm_device); 55LIST_HEAD(udv_list_struct, uvm_device);
56static struct udv_list_struct udv_list; 56static struct udv_list_struct udv_list;
57static kmutex_t udv_lock; 57static kmutex_t udv_lock __cacheline_aligned;
58 58
59/* 59/*
60 * functions 60 * functions
61 */ 61 */
62 62
63static void udv_init(void); 63static void udv_init(void);
64static void udv_reference(struct uvm_object *); 64static void udv_reference(struct uvm_object *);
65static void udv_detach(struct uvm_object *); 65static void udv_detach(struct uvm_object *);
66static int udv_fault(struct uvm_faultinfo *, vaddr_t, 66static int udv_fault(struct uvm_faultinfo *, vaddr_t,
67 struct vm_page **, int, int, vm_prot_t, 67 struct vm_page **, int, int, vm_prot_t,
68 int); 68 int);
69 69
70/* 70/*