ia64/linux-2.6.18-xen.hg

view drivers/macintosh/macio_sysfs.c @ 893:f994bfe9b93b

linux/blktap2: reduce TLB flush scope

c/s 885 added very coarse TLB flushing. Since these flushes always
follow single page updates, single page flushes (when available) are
sufficient.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Jun 04 10:32:57 2009 +0100 (2009-06-04)
parents 831230e53067
children
line source
1 #include <linux/kernel.h>
2 #include <linux/stat.h>
3 #include <asm/macio.h>
6 #define macio_config_of_attr(field, format_string) \
7 static ssize_t \
8 field##_show (struct device *dev, struct device_attribute *attr, \
9 char *buf) \
10 { \
11 struct macio_dev *mdev = to_macio_device (dev); \
12 return sprintf (buf, format_string, mdev->ofdev.node->field); \
13 }
15 static ssize_t
16 compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
17 {
18 struct of_device *of;
19 char *compat;
20 int cplen;
21 int length = 0;
23 of = &to_macio_device (dev)->ofdev;
24 compat = (char *) get_property(of->node, "compatible", &cplen);
25 if (!compat) {
26 *buf = '\0';
27 return 0;
28 }
29 while (cplen > 0) {
30 int l;
31 length += sprintf (buf, "%s\n", compat);
32 buf += length;
33 l = strlen (compat) + 1;
34 compat += l;
35 cplen -= l;
36 }
38 return length;
39 }
41 static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
42 char *buf)
43 {
44 struct of_device *of;
45 char *compat;
46 int cplen;
47 int length;
49 of = &to_macio_device (dev)->ofdev;
50 compat = (char *) get_property (of->node, "compatible", &cplen);
51 if (!compat) compat = "", cplen = 1;
52 length = sprintf (buf, "of:N%sT%s", of->node->name, of->node->type);
53 buf += length;
54 while (cplen > 0) {
55 int l;
56 length += sprintf (buf, "C%s", compat);
57 buf += length;
58 l = strlen (compat) + 1;
59 compat += l;
60 cplen -= l;
61 }
63 return length;
64 }
66 macio_config_of_attr (name, "%s\n");
67 macio_config_of_attr (type, "%s\n");
69 struct device_attribute macio_dev_attrs[] = {
70 __ATTR_RO(name),
71 __ATTR_RO(type),
72 __ATTR_RO(compatible),
73 __ATTR_RO(modalias),
74 __ATTR_NULL
75 };