diff options
Diffstat (limited to 'Documentation')
64 files changed, 1674 insertions, 556 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 6de71308a906..5b5aba404aac 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX | |||
@@ -89,8 +89,6 @@ cciss.txt | |||
89 | - info, major/minor #'s for Compaq's SMART Array Controllers. | 89 | - info, major/minor #'s for Compaq's SMART Array Controllers. |
90 | cdrom/ | 90 | cdrom/ |
91 | - directory with information on the CD-ROM drivers that Linux has. | 91 | - directory with information on the CD-ROM drivers that Linux has. |
92 | cli-sti-removal.txt | ||
93 | - cli()/sti() removal guide. | ||
94 | computone.txt | 92 | computone.txt |
95 | - info on Computone Intelliport II/Plus Multiport Serial Driver. | 93 | - info on Computone Intelliport II/Plus Multiport Serial Driver. |
96 | connector/ | 94 | connector/ |
diff --git a/Documentation/ABI/testing/sysfs-class-regulator b/Documentation/ABI/testing/sysfs-class-regulator new file mode 100644 index 000000000000..79a4a75b2d2c --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-regulator | |||
@@ -0,0 +1,315 @@ | |||
1 | What: /sys/class/regulator/.../state | ||
2 | Date: April 2008 | ||
3 | KernelVersion: 2.6.26 | ||
4 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
5 | Description: | ||
6 | Each regulator directory will contain a field called | ||
7 | state. This holds the regulator output state. | ||
8 | |||
9 | This will be one of the following strings: | ||
10 | |||
11 | 'enabled' | ||
12 | 'disabled' | ||
13 | 'unknown' | ||
14 | |||
15 | 'enabled' means the regulator output is ON and is supplying | ||
16 | power to the system. | ||
17 | |||
18 | 'disabled' means the regulator output is OFF and is not | ||
19 | supplying power to the system.. | ||
20 | |||
21 | 'unknown' means software cannot determine the state. | ||
22 | |||
23 | NOTE: this field can be used in conjunction with microvolts | ||
24 | and microamps to determine regulator output levels. | ||
25 | |||
26 | |||
27 | What: /sys/class/regulator/.../type | ||
28 | Date: April 2008 | ||
29 | KernelVersion: 2.6.26 | ||
30 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
31 | Description: | ||
32 | Each regulator directory will contain a field called | ||
33 | type. This holds the regulator type. | ||
34 | |||
35 | This will be one of the following strings: | ||
36 | |||
37 | 'voltage' | ||
38 | 'current' | ||
39 | 'unknown' | ||
40 | |||
41 | 'voltage' means the regulator output voltage can be controlled | ||
42 | by software. | ||
43 | |||
44 | 'current' means the regulator output current limit can be | ||
45 | controlled by software. | ||
46 | |||
47 | 'unknown' means software cannot control either voltage or | ||
48 | current limit. | ||
49 | |||
50 | |||
51 | What: /sys/class/regulator/.../microvolts | ||
52 | Date: April 2008 | ||
53 | KernelVersion: 2.6.26 | ||
54 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
55 | Description: | ||
56 | Each regulator directory will contain a field called | ||
57 | microvolts. This holds the regulator output voltage setting | ||
58 | measured in microvolts (i.e. E-6 Volts). | ||
59 | |||
60 | NOTE: This value should not be used to determine the regulator | ||
61 | output voltage level as this value is the same regardless of | ||
62 | whether the regulator is enabled or disabled. | ||
63 | |||
64 | |||
65 | What: /sys/class/regulator/.../microamps | ||
66 | Date: April 2008 | ||
67 | KernelVersion: 2.6.26 | ||
68 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
69 | Description: | ||
70 | Each regulator directory will contain a field called | ||
71 | microamps. This holds the regulator output current limit | ||
72 | setting measured in microamps (i.e. E-6 Amps). | ||
73 | |||
74 | NOTE: This value should not be used to determine the regulator | ||
75 | output current level as this value is the same regardless of | ||
76 | whether the regulator is enabled or disabled. | ||
77 | |||
78 | |||
79 | What: /sys/class/regulator/.../opmode | ||
80 | Date: April 2008 | ||
81 | KernelVersion: 2.6.26 | ||
82 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
83 | Description: | ||
84 | Each regulator directory will contain a field called | ||
85 | opmode. This holds the regulator operating mode setting. | ||
86 | |||
87 | The opmode value can be one of the following strings: | ||
88 | |||
89 | 'fast' | ||
90 | 'normal' | ||
91 | 'idle' | ||
92 | 'standby' | ||
93 | 'unknown' | ||
94 | |||
95 | The modes are described in include/linux/regulator/regulator.h | ||
96 | |||
97 | NOTE: This value should not be used to determine the regulator | ||
98 | output operating mode as this value is the same regardless of | ||
99 | whether the regulator is enabled or disabled. | ||
100 | |||
101 | |||
102 | What: /sys/class/regulator/.../min_microvolts | ||
103 | Date: April 2008 | ||
104 | KernelVersion: 2.6.26 | ||
105 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
106 | Description: | ||
107 | Each regulator directory will contain a field called | ||
108 | min_microvolts. This holds the minimum safe working regulator | ||
109 | output voltage setting for this domain measured in microvolts. | ||
110 | |||
111 | NOTE: this will return the string 'constraint not defined' if | ||
112 | the power domain has no min microvolts constraint defined by | ||
113 | platform code. | ||
114 | |||
115 | |||
116 | What: /sys/class/regulator/.../max_microvolts | ||
117 | Date: April 2008 | ||
118 | KernelVersion: 2.6.26 | ||
119 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
120 | Description: | ||
121 | Each regulator directory will contain a field called | ||
122 | max_microvolts. This holds the maximum safe working regulator | ||
123 | output voltage setting for this domain measured in microvolts. | ||
124 | |||
125 | NOTE: this will return the string 'constraint not defined' if | ||
126 | the power domain has no max microvolts constraint defined by | ||
127 | platform code. | ||
128 | |||
129 | |||
130 | What: /sys/class/regulator/.../min_microamps | ||
131 | Date: April 2008 | ||
132 | KernelVersion: 2.6.26 | ||
133 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
134 | Description: | ||
135 | Each regulator directory will contain a field called | ||
136 | min_microamps. This holds the minimum safe working regulator | ||
137 | output current limit setting for this domain measured in | ||
138 | microamps. | ||
139 | |||
140 | NOTE: this will return the string 'constraint not defined' if | ||
141 | the power domain has no min microamps constraint defined by | ||
142 | platform code. | ||
143 | |||
144 | |||
145 | What: /sys/class/regulator/.../max_microamps | ||
146 | Date: April 2008 | ||
147 | KernelVersion: 2.6.26 | ||
148 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
149 | Description: | ||
150 | Each regulator directory will contain a field called | ||
151 | max_microamps. This holds the maximum safe working regulator | ||
152 | output current limit setting for this domain measured in | ||
153 | microamps. | ||
154 | |||
155 | NOTE: this will return the string 'constraint not defined' if | ||
156 | the power domain has no max microamps constraint defined by | ||
157 | platform code. | ||
158 | |||
159 | |||
160 | What: /sys/class/regulator/.../num_users | ||
161 | Date: April 2008 | ||
162 | KernelVersion: 2.6.26 | ||
163 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
164 | Description: | ||
165 | Each regulator directory will contain a field called | ||
166 | num_users. This holds the number of consumer devices that | ||
167 | have called regulator_enable() on this regulator. | ||
168 | |||
169 | |||
170 | What: /sys/class/regulator/.../requested_microamps | ||
171 | Date: April 2008 | ||
172 | KernelVersion: 2.6.26 | ||
173 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
174 | Description: | ||
175 | Each regulator directory will contain a field called | ||
176 | requested_microamps. This holds the total requested load | ||
177 | current in microamps for this regulator from all its consumer | ||
178 | devices. | ||
179 | |||
180 | |||
181 | What: /sys/class/regulator/.../parent | ||
182 | Date: April 2008 | ||
183 | KernelVersion: 2.6.26 | ||
184 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
185 | Description: | ||
186 | Some regulator directories will contain a link called parent. | ||
187 | This points to the parent or supply regulator if one exists. | ||
188 | |||
189 | What: /sys/class/regulator/.../suspend_mem_microvolts | ||
190 | Date: May 2008 | ||
191 | KernelVersion: 2.6.26 | ||
192 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
193 | Description: | ||
194 | Each regulator directory will contain a field called | ||
195 | suspend_mem_microvolts. This holds the regulator output | ||
196 | voltage setting for this domain measured in microvolts when | ||
197 | the system is suspended to memory. | ||
198 | |||
199 | NOTE: this will return the string 'not defined' if | ||
200 | the power domain has no suspend to memory voltage defined by | ||
201 | platform code. | ||
202 | |||
203 | What: /sys/class/regulator/.../suspend_disk_microvolts | ||
204 | Date: May 2008 | ||
205 | KernelVersion: 2.6.26 | ||
206 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
207 | Description: | ||
208 | Each regulator directory will contain a field called | ||
209 | suspend_disk_microvolts. This holds the regulator output | ||
210 | voltage setting for this domain measured in microvolts when | ||
211 | the system is suspended to disk. | ||
212 | |||
213 | NOTE: this will return the string 'not defined' if | ||
214 | the power domain has no suspend to disk voltage defined by | ||
215 | platform code. | ||
216 | |||
217 | What: /sys/class/regulator/.../suspend_standby_microvolts | ||
218 | Date: May 2008 | ||
219 | KernelVersion: 2.6.26 | ||
220 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
221 | Description: | ||
222 | Each regulator directory will contain a field called | ||
223 | suspend_standby_microvolts. This holds the regulator output | ||
224 | voltage setting for this domain measured in microvolts when | ||
225 | the system is suspended to standby. | ||
226 | |||
227 | NOTE: this will return the string 'not defined' if | ||
228 | the power domain has no suspend to standby voltage defined by | ||
229 | platform code. | ||
230 | |||
231 | What: /sys/class/regulator/.../suspend_mem_mode | ||
232 | Date: May 2008 | ||
233 | KernelVersion: 2.6.26 | ||
234 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
235 | Description: | ||
236 | Each regulator directory will contain a field called | ||
237 | suspend_mem_mode. This holds the regulator operating mode | ||
238 | setting for this domain when the system is suspended to | ||
239 | memory. | ||
240 | |||
241 | NOTE: this will return the string 'not defined' if | ||
242 | the power domain has no suspend to memory mode defined by | ||
243 | platform code. | ||
244 | |||
245 | What: /sys/class/regulator/.../suspend_disk_mode | ||
246 | Date: May 2008 | ||
247 | KernelVersion: 2.6.26 | ||
248 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
249 | Description: | ||
250 | Each regulator directory will contain a field called | ||
251 | suspend_disk_mode. This holds the regulator operating mode | ||
252 | setting for this domain when the system is suspended to disk. | ||
253 | |||
254 | NOTE: this will return the string 'not defined' if | ||
255 | the power domain has no suspend to disk mode defined by | ||
256 | platform code. | ||
257 | |||
258 | What: /sys/class/regulator/.../suspend_standby_mode | ||
259 | Date: May 2008 | ||
260 | KernelVersion: 2.6.26 | ||
261 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
262 | Description: | ||
263 | Each regulator directory will contain a field called | ||
264 | suspend_standby_mode. This holds the regulator operating mode | ||
265 | setting for this domain when the system is suspended to | ||
266 | standby. | ||
267 | |||
268 | NOTE: this will return the string 'not defined' if | ||
269 | the power domain has no suspend to standby mode defined by | ||
270 | platform code. | ||
271 | |||
272 | What: /sys/class/regulator/.../suspend_mem_state | ||
273 | Date: May 2008 | ||
274 | KernelVersion: 2.6.26 | ||
275 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
276 | Description: | ||
277 | Each regulator directory will contain a field called | ||
278 | suspend_mem_state. This holds the regulator operating state | ||
279 | when suspended to memory. | ||
280 | |||
281 | This will be one of the following strings: | ||
282 | |||
283 | 'enabled' | ||
284 | 'disabled' | ||
285 | 'not defined' | ||
286 | |||
287 | What: /sys/class/regulator/.../suspend_disk_state | ||
288 | Date: May 2008 | ||
289 | KernelVersion: 2.6.26 | ||
290 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
291 | Description: | ||
292 | Each regulator directory will contain a field called | ||
293 | suspend_disk_state. This holds the regulator operating state | ||
294 | when suspended to disk. | ||
295 | |||
296 | This will be one of the following strings: | ||
297 | |||
298 | 'enabled' | ||
299 | 'disabled' | ||
300 | 'not defined' | ||
301 | |||
302 | What: /sys/class/regulator/.../suspend_standby_state | ||
303 | Date: May 2008 | ||
304 | KernelVersion: 2.6.26 | ||
305 | Contact: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
306 | Description: | ||
307 | Each regulator directory will contain a field called | ||
308 | suspend_standby_state. This holds the regulator operating | ||
309 | state when suspended to standby. | ||
310 | |||
311 | This will be one of the following strings: | ||
312 | |||
313 | 'enabled' | ||
314 | 'disabled' | ||
315 | 'not defined' | ||
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index 0eb0d027eb32..1615350b7b53 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile | |||
@@ -12,7 +12,7 @@ DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \ | |||
12 | kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \ | 12 | kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \ |
13 | gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \ | 13 | gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \ |
14 | genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ | 14 | genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ |
15 | mac80211.xml debugobjects.xml | 15 | mac80211.xml debugobjects.xml sh.xml |
16 | 16 | ||
17 | ### | 17 | ### |
18 | # The build process is as follows (targets): | 18 | # The build process is as follows (targets): |
@@ -102,6 +102,13 @@ C-procfs-example = procfs_example.xml | |||
102 | C-procfs-example2 = $(addprefix $(obj)/,$(C-procfs-example)) | 102 | C-procfs-example2 = $(addprefix $(obj)/,$(C-procfs-example)) |
103 | $(obj)/procfs-guide.xml: $(C-procfs-example2) | 103 | $(obj)/procfs-guide.xml: $(C-procfs-example2) |
104 | 104 | ||
105 | # List of programs to build | ||
106 | ##oops, this is a kernel module::hostprogs-y := procfs_example | ||
107 | obj-m += procfs_example.o | ||
108 | |||
109 | # Tell kbuild to always build the programs | ||
110 | always := $(hostprogs-y) | ||
111 | |||
105 | notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \ | 112 | notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \ |
106 | exit 1 | 113 | exit 1 |
107 | db2xtemplate = db2TYPE -o $(dir $@) $< | 114 | db2xtemplate = db2TYPE -o $(dir $@) $< |
diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl index e8acd1f03456..372dec20c8da 100644 --- a/Documentation/DocBook/kgdb.tmpl +++ b/Documentation/DocBook/kgdb.tmpl | |||
@@ -98,6 +98,24 @@ | |||
98 | "Kernel debugging" select "KGDB: kernel debugging with remote gdb". | 98 | "Kernel debugging" select "KGDB: kernel debugging with remote gdb". |
99 | </para> | 99 | </para> |
100 | <para> | 100 | <para> |
101 | It is advised, but not required that you turn on the | ||
102 | CONFIG_FRAME_POINTER kernel option. This option inserts code to | ||
103 | into the compiled executable which saves the frame information in | ||
104 | registers or on the stack at different points which will allow a | ||
105 | debugger such as gdb to more accurately construct stack back traces | ||
106 | while debugging the kernel. | ||
107 | </para> | ||
108 | <para> | ||
109 | If the architecture that you are using supports the kernel option | ||
110 | CONFIG_DEBUG_RODATA, you should consider turning it off. This | ||
111 | option will prevent the use of software breakpoints because it | ||
112 | marks certain regions of the kernel's memory space as read-only. | ||
113 | If kgdb supports it for the architecture you are using, you can | ||
114 | use hardware breakpoints if you desire to run with the | ||
115 | CONFIG_DEBUG_RODATA option turned on, else you need to turn off | ||
116 | this option. | ||
117 | </para> | ||
118 | <para> | ||
101 | Next you should choose one of more I/O drivers to interconnect debugging | 119 | Next you should choose one of more I/O drivers to interconnect debugging |
102 | host and debugged target. Early boot debugging requires a KGDB | 120 | host and debugged target. Early boot debugging requires a KGDB |
103 | I/O driver that supports early debugging and the driver must be | 121 | I/O driver that supports early debugging and the driver must be |
diff --git a/Documentation/DocBook/procfs_example.c b/Documentation/DocBook/procfs_example.c index 7064084c1c5e..2f3de0fb8365 100644 --- a/Documentation/DocBook/procfs_example.c +++ b/Documentation/DocBook/procfs_example.c | |||
@@ -189,8 +189,6 @@ static int __init init_procfs_example(void) | |||
189 | return 0; | 189 | return 0; |
190 | 190 | ||
191 | no_symlink: | 191 | no_symlink: |
192 | remove_proc_entry("tty", example_dir); | ||
193 | no_tty: | ||
194 | remove_proc_entry("bar", example_dir); | 192 | remove_proc_entry("bar", example_dir); |
195 | no_bar: | 193 | no_bar: |
196 | remove_proc_entry("foo", example_dir); | 194 | remove_proc_entry("foo", example_dir); |
@@ -206,7 +204,6 @@ out: | |||
206 | static void __exit cleanup_procfs_example(void) | 204 | static void __exit cleanup_procfs_example(void) |
207 | { | 205 | { |
208 | remove_proc_entry("jiffies_too", example_dir); | 206 | remove_proc_entry("jiffies_too", example_dir); |
209 | remove_proc_entry("tty", example_dir); | ||
210 | remove_proc_entry("bar", example_dir); | 207 | remove_proc_entry("bar", example_dir); |
211 | remove_proc_entry("foo", example_dir); | 208 | remove_proc_entry("foo", example_dir); |
212 | remove_proc_entry("jiffies", example_dir); | 209 | remove_proc_entry("jiffies", example_dir); |
@@ -222,3 +219,4 @@ module_exit(cleanup_procfs_example); | |||
222 | 219 | ||
223 | MODULE_AUTHOR("Erik Mouw"); | 220 | MODULE_AUTHOR("Erik Mouw"); |
224 | MODULE_DESCRIPTION("procfs examples"); | 221 | MODULE_DESCRIPTION("procfs examples"); |
222 | MODULE_LICENSE("GPL"); | ||
diff --git a/Documentation/DocBook/s390-drivers.tmpl b/Documentation/DocBook/s390-drivers.tmpl index 4acc73240a6d..95bfc12e5439 100644 --- a/Documentation/DocBook/s390-drivers.tmpl +++ b/Documentation/DocBook/s390-drivers.tmpl | |||
@@ -100,7 +100,7 @@ | |||
100 | the hardware structures represented here, please consult the Principles | 100 | the hardware structures represented here, please consult the Principles |
101 | of Operation. | 101 | of Operation. |
102 | </para> | 102 | </para> |
103 | !Iinclude/asm-s390/cio.h | 103 | !Iarch/s390/include/asm/cio.h |
104 | </sect1> | 104 | </sect1> |
105 | <sect1 id="ccwdev"> | 105 | <sect1 id="ccwdev"> |
106 | <title>ccw devices</title> | 106 | <title>ccw devices</title> |
@@ -114,7 +114,7 @@ | |||
114 | ccw device structure. Device drivers must not bypass those functions | 114 | ccw device structure. Device drivers must not bypass those functions |
115 | or strange side effects may happen. | 115 | or strange side effects may happen. |
116 | </para> | 116 | </para> |
117 | !Iinclude/asm-s390/ccwdev.h | 117 | !Iarch/s390/include/asm/ccwdev.h |
118 | !Edrivers/s390/cio/device.c | 118 | !Edrivers/s390/cio/device.c |
119 | !Edrivers/s390/cio/device_ops.c | 119 | !Edrivers/s390/cio/device_ops.c |
120 | </sect1> | 120 | </sect1> |
@@ -125,7 +125,7 @@ | |||
125 | measurement data which is made available by the channel subsystem | 125 | measurement data which is made available by the channel subsystem |
126 | for each channel attached device. | 126 | for each channel attached device. |
127 | </para> | 127 | </para> |
128 | !Iinclude/asm-s390/cmb.h | 128 | !Iarch/s390/include/asm/cmb.h |
129 | !Edrivers/s390/cio/cmf.c | 129 | !Edrivers/s390/cio/cmf.c |
130 | </sect1> | 130 | </sect1> |
131 | </chapter> | 131 | </chapter> |
@@ -142,7 +142,7 @@ | |||
142 | </para> | 142 | </para> |
143 | <sect1 id="ccwgroupdevices"> | 143 | <sect1 id="ccwgroupdevices"> |
144 | <title>ccw group devices</title> | 144 | <title>ccw group devices</title> |
145 | !Iinclude/asm-s390/ccwgroup.h | 145 | !Iarch/s390/include/asm/ccwgroup.h |
146 | !Edrivers/s390/cio/ccwgroup.c | 146 | !Edrivers/s390/cio/ccwgroup.c |
147 | </sect1> | 147 | </sect1> |
148 | </chapter> | 148 | </chapter> |
diff --git a/Documentation/DocBook/sh.tmpl b/Documentation/DocBook/sh.tmpl new file mode 100644 index 000000000000..0c3dc4c69dd1 --- /dev/null +++ b/Documentation/DocBook/sh.tmpl | |||
@@ -0,0 +1,105 @@ | |||
1 | <?xml version="1.0" encoding="UTF-8"?> | ||
2 | <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" | ||
3 | "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []> | ||
4 | |||
5 | <book id="sh-drivers"> | ||
6 | <bookinfo> | ||
7 | <title>SuperH Interfaces Guide</title> | ||
8 | |||
9 | <authorgroup> | ||
10 | <author> | ||
11 | <firstname>Paul</firstname> | ||
12 | <surname>Mundt</surname> | ||
13 | <affiliation> | ||
14 | <address> | ||
15 | <email>lethal@linux-sh.org</email> | ||
16 | </address> | ||
17 | </affiliation> | ||
18 | </author> | ||
19 | </authorgroup> | ||
20 | |||
21 | <copyright> | ||
22 | <year>2008</year> | ||
23 | <holder>Paul Mundt</holder> | ||
24 | </copyright> | ||
25 | <copyright> | ||
26 | <year>2008</year> | ||
27 | <holder>Renesas Technology Corp.</holder> | ||
28 | </copyright> | ||
29 | |||
30 | <legalnotice> | ||
31 | <para> | ||
32 | This documentation is free software; you can redistribute | ||
33 | it and/or modify it under the terms of the GNU General Public | ||
34 | License version 2 as published by the Free Software Foundation. | ||
35 | </para> | ||
36 | |||
37 | <para> | ||
38 | This program is distributed in the hope that it will be | ||
39 | useful, but WITHOUT ANY WARRANTY; without even the implied | ||
40 | warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
41 | See the GNU General Public License for more details. | ||
42 | </para> | ||
43 | |||
44 | <para> | ||
45 | You should have received a copy of the GNU General Public | ||
46 | License along with this program; if not, write to the Free | ||
47 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, | ||
48 | MA 02111-1307 USA | ||
49 | </para> | ||
50 | |||
51 | <para> | ||
52 | For more details see the file COPYING in the source | ||
53 | distribution of Linux. | ||
54 | </para> | ||
55 | </legalnotice> | ||
56 | </bookinfo> | ||
57 | |||
58 | <toc></toc> | ||
59 | |||
60 | <chapter id="mm"> | ||
61 | <title>Memory Management</title> | ||
62 | <sect1 id="sh4"> | ||
63 | <title>SH-4</title> | ||
64 | <sect2 id="sq"> | ||
65 | <title>Store Queue API</title> | ||
66 | !Earch/sh/kernel/cpu/sh4/sq.c | ||
67 | </sect2> | ||
68 | </sect1> | ||
69 | <sect1 id="sh5"> | ||
70 | <title>SH-5</title> | ||
71 | <sect2 id="tlb"> | ||
72 | <title>TLB Interfaces</title> | ||
73 | !Iarch/sh/mm/tlb-sh5.c | ||
74 | !Iarch/sh/include/asm/tlb_64.h | ||
75 | </sect2> | ||
76 | </sect1> | ||
77 | </chapter> | ||
78 | <chapter id="clk"> | ||
79 | <title>Clock Framework Extensions</title> | ||
80 | !Iarch/sh/include/asm/clock.h | ||
81 | </chapter> | ||
82 | <chapter id="mach"> | ||
83 | <title>Machine Specific Interfaces</title> | ||
84 | <sect1 id="dreamcast"> | ||
85 | <title>mach-dreamcast</title> | ||
86 | !Iarch/sh/boards/mach-dreamcast/rtc.c | ||
87 | </sect1> | ||
88 | <sect1 id="x3proto"> | ||
89 | <title>mach-x3proto</title> | ||
90 | !Earch/sh/boards/mach-x3proto/ilsel.c | ||
91 | </sect1> | ||
92 | </chapter> | ||
93 | <chapter id="busses"> | ||
94 | <title>Busses</title> | ||
95 | <sect1 id="superhyway"> | ||
96 | <title>SuperHyway</title> | ||
97 | !Edrivers/sh/superhyway/superhyway.c | ||
98 | </sect1> | ||
99 | |||
100 | <sect1 id="maple"> | ||
101 | <title>Maple</title> | ||
102 | !Edrivers/sh/maple/maple.c | ||
103 | </sect1> | ||
104 | </chapter> | ||
105 | </book> | ||
diff --git a/Documentation/DocBook/videobook.tmpl b/Documentation/DocBook/videobook.tmpl index 89817795e668..0bc25949b668 100644 --- a/Documentation/DocBook/videobook.tmpl +++ b/Documentation/DocBook/videobook.tmpl | |||
@@ -1648,7 +1648,7 @@ static struct video_buffer capture_fb; | |||
1648 | 1648 | ||
1649 | <chapter id="pubfunctions"> | 1649 | <chapter id="pubfunctions"> |
1650 | <title>Public Functions Provided</title> | 1650 | <title>Public Functions Provided</title> |
1651 | !Edrivers/media/video/videodev.c | 1651 | !Edrivers/media/video/v4l2-dev.c |
1652 | </chapter> | 1652 | </chapter> |
1653 | 1653 | ||
1654 | </book> | 1654 | </book> |
diff --git a/Documentation/DocBook/z8530book.tmpl b/Documentation/DocBook/z8530book.tmpl index 42c75ba71ba2..a42a8a4c7689 100644 --- a/Documentation/DocBook/z8530book.tmpl +++ b/Documentation/DocBook/z8530book.tmpl | |||
@@ -69,12 +69,6 @@ | |||
69 | device to be used as both a tty interface and as a synchronous | 69 | device to be used as both a tty interface and as a synchronous |
70 | controller is a project for Linux post the 2.4 release | 70 | controller is a project for Linux post the 2.4 release |
71 | </para> | 71 | </para> |
72 | <para> | ||
73 | The support code handles most common card configurations and | ||
74 | supports running both Cisco HDLC and Synchronous PPP. With extra | ||
75 | glue the frame relay and X.25 protocols can also be used with this | ||
76 | driver. | ||
77 | </para> | ||
78 | </chapter> | 72 | </chapter> |
79 | 73 | ||
80 | <chapter id="Driver_Modes"> | 74 | <chapter id="Driver_Modes"> |
@@ -179,35 +173,27 @@ | |||
179 | <para> | 173 | <para> |
180 | If you wish to use the network interface facilities of the driver, | 174 | If you wish to use the network interface facilities of the driver, |
181 | then you need to attach a network device to each channel that is | 175 | then you need to attach a network device to each channel that is |
182 | present and in use. In addition to use the SyncPPP and Cisco HDLC | 176 | present and in use. In addition to use the generic HDLC |
183 | you need to follow some additional plumbing rules. They may seem | 177 | you need to follow some additional plumbing rules. They may seem |
184 | complex but a look at the example hostess_sv11 driver should | 178 | complex but a look at the example hostess_sv11 driver should |
185 | reassure you. | 179 | reassure you. |
186 | </para> | 180 | </para> |
187 | <para> | 181 | <para> |
188 | The network device used for each channel should be pointed to by | 182 | The network device used for each channel should be pointed to by |
189 | the netdevice field of each channel. The dev-> priv field of the | 183 | the netdevice field of each channel. The hdlc-> priv field of the |
190 | network device points to your private data - you will need to be | 184 | network device points to your private data - you will need to be |
191 | able to find your ppp device from this. In addition to use the | 185 | able to find your private data from this. |
192 | sync ppp layer the private data must start with a void * pointer | ||
193 | to the syncppp structures. | ||
194 | </para> | 186 | </para> |
195 | <para> | 187 | <para> |
196 | The way most drivers approach this particular problem is to | 188 | The way most drivers approach this particular problem is to |
197 | create a structure holding the Z8530 device definition and | 189 | create a structure holding the Z8530 device definition and |
198 | put that and the syncppp pointer into the private field of | 190 | put that into the private field of the network device. The |
199 | the network device. The network device fields of the channels | 191 | network device fields of the channels then point back to the |
200 | then point back to the network devices. The ppp_device can also | 192 | network devices. |
201 | be put in the private structure conveniently. | ||
202 | </para> | 193 | </para> |
203 | <para> | 194 | <para> |
204 | If you wish to use the synchronous ppp then you need to attach | 195 | If you wish to use the generic HDLC then you need to register |
205 | the syncppp layer to the network device. You should do this before | 196 | the HDLC device. |
206 | you register the network device. The | ||
207 | <function>sppp_attach</function> requires that the first void * | ||
208 | pointer in your private data is pointing to an empty struct | ||
209 | ppp_device. The function fills in the initial data for the | ||
210 | ppp/hdlc layer. | ||
211 | </para> | 197 | </para> |
212 | <para> | 198 | <para> |
213 | Before you register your network device you will also need to | 199 | Before you register your network device you will also need to |
@@ -314,10 +300,10 @@ | |||
314 | buffer in sk_buff format and queues it for transmission. The | 300 | buffer in sk_buff format and queues it for transmission. The |
315 | caller must provide the entire packet with the exception of the | 301 | caller must provide the entire packet with the exception of the |
316 | bitstuffing and CRC. This is normally done by the caller via | 302 | bitstuffing and CRC. This is normally done by the caller via |
317 | the syncppp interface layer. It returns 0 if the buffer has been | 303 | the generic HDLC interface layer. It returns 0 if the buffer has been |
318 | queued and non zero values for queue full. If the function accepts | 304 | queued and non zero values for queue full. If the function accepts |
319 | the buffer it becomes property of the Z8530 layer and the caller | 305 | the buffer it becomes property of the Z8530 layer and the caller |
320 | should not free it. | 306 | should not free it. |
321 | </para> | 307 | </para> |
322 | <para> | 308 | <para> |
323 | The function <function>z8530_get_stats</function> returns a pointer | 309 | The function <function>z8530_get_stats</function> returns a pointer |
diff --git a/Documentation/Makefile b/Documentation/Makefile new file mode 100644 index 000000000000..94b945733534 --- /dev/null +++ b/Documentation/Makefile | |||
@@ -0,0 +1,3 @@ | |||
1 | obj-m := DocBook/ accounting/ auxdisplay/ connector/ \ | ||
2 | filesystems/configfs/ ia64/ networking/ \ | ||
3 | pcmcia/ spi/ video4linux/ vm/ watchdog/src/ | ||
diff --git a/Documentation/accounting/Makefile b/Documentation/accounting/Makefile new file mode 100644 index 000000000000..31929eb875b1 --- /dev/null +++ b/Documentation/accounting/Makefile | |||
@@ -0,0 +1,10 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := getdelays | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||
9 | |||
10 | HOSTCFLAGS_getdelays.o += -I$(objtree)/usr/include | ||
diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c index 3f7755f3963f..cc49400b4af8 100644 --- a/Documentation/accounting/getdelays.c +++ b/Documentation/accounting/getdelays.c | |||
@@ -201,13 +201,19 @@ void print_delayacct(struct taskstats *t) | |||
201 | "RECLAIM %12s%15s\n" | 201 | "RECLAIM %12s%15s\n" |
202 | " %15llu%15llu\n", | 202 | " %15llu%15llu\n", |
203 | "count", "real total", "virtual total", "delay total", | 203 | "count", "real total", "virtual total", "delay total", |
204 | t->cpu_count, t->cpu_run_real_total, t->cpu_run_virtual_total, | 204 | (unsigned long long)t->cpu_count, |
205 | t->cpu_delay_total, | 205 | (unsigned long long)t->cpu_run_real_total, |
206 | (unsigned long long)t->cpu_run_virtual_total, | ||
207 | (unsigned long long)t->cpu_delay_total, | ||
206 | "count", "delay total", | 208 | "count", "delay total", |
207 | t->blkio_count, t->blkio_delay_total, | 209 | (unsigned long long)t->blkio_count, |
208 | "count", "delay total", t->swapin_count, t->swapin_delay_total, | 210 | (unsigned long long)t->blkio_delay_total, |
209 | "count", "delay total", | 211 | "count", "delay total", |
210 | t->freepages_count, t->freepages_delay_total); | 212 | (unsigned long long)t->swapin_count, |
213 | (unsigned long long)t->swapin_delay_total, | ||
214 | "count", "delay total", | ||
215 | (unsigned long long)t->freepages_count, | ||
216 | (unsigned long long)t->freepages_delay_total); | ||
211 | } | 217 | } |
212 | 218 | ||
213 | void task_context_switch_counts(struct taskstats *t) | 219 | void task_context_switch_counts(struct taskstats *t) |
@@ -215,14 +221,17 @@ void task_context_switch_counts(struct taskstats *t) | |||
215 | printf("\n\nTask %15s%15s\n" | 221 | printf("\n\nTask %15s%15s\n" |
216 | " %15llu%15llu\n", | 222 | " %15llu%15llu\n", |
217 | "voluntary", "nonvoluntary", | 223 | "voluntary", "nonvoluntary", |
218 | t->nvcsw, t->nivcsw); | 224 | (unsigned long long)t->nvcsw, (unsigned long long)t->nivcsw); |
219 | } | 225 | } |
220 | 226 | ||
221 | void print_cgroupstats(struct cgroupstats *c) | 227 | void print_cgroupstats(struct cgroupstats *c) |
222 | { | 228 | { |
223 | printf("sleeping %llu, blocked %llu, running %llu, stopped %llu, " | 229 | printf("sleeping %llu, blocked %llu, running %llu, stopped %llu, " |
224 | "uninterruptible %llu\n", c->nr_sleeping, c->nr_io_wait, | 230 | "uninterruptible %llu\n", (unsigned long long)c->nr_sleeping, |
225 | c->nr_running, c->nr_stopped, c->nr_uninterruptible); | 231 | (unsigned long long)c->nr_io_wait, |
232 | (unsigned long long)c->nr_running, | ||
233 | (unsigned long long)c->nr_stopped, | ||
234 | (unsigned long long)c->nr_uninterruptible); | ||
226 | } | 235 | } |
227 | 236 | ||
228 | 237 | ||
diff --git a/Documentation/arm/IXP4xx b/Documentation/arm/IXP4xx index 43edb4ecf27d..72fbcc4fcab0 100644 --- a/Documentation/arm/IXP4xx +++ b/Documentation/arm/IXP4xx | |||
@@ -32,7 +32,7 @@ Linux currently supports the following features on the IXP4xx chips: | |||
32 | - Flash access (MTD/JFFS) | 32 | - Flash access (MTD/JFFS) |
33 | - I2C through GPIO on IXP42x | 33 | - I2C through GPIO on IXP42x |
34 | - GPIO for input/output/interrupts | 34 | - GPIO for input/output/interrupts |
35 | See include/asm-arm/arch-ixp4xx/platform.h for access functions. | 35 | See arch/arm/mach-ixp4xx/include/mach/platform.h for access functions. |
36 | - Timers (watchdog, OS) | 36 | - Timers (watchdog, OS) |
37 | 37 | ||
38 | The following components of the chips are not supported by Linux and | 38 | The following components of the chips are not supported by Linux and |
diff --git a/Documentation/arm/Interrupts b/Documentation/arm/Interrupts index c202ed35d7d6..f09ab1b90ef1 100644 --- a/Documentation/arm/Interrupts +++ b/Documentation/arm/Interrupts | |||
@@ -158,7 +158,7 @@ So, what's changed? | |||
158 | be re-checked for pending events. (see the Neponset IRQ handler for | 158 | be re-checked for pending events. (see the Neponset IRQ handler for |
159 | details). | 159 | details). |
160 | 160 | ||
161 | 7. fixup_irq() is gone, as is include/asm-arm/arch-*/irq.h | 161 | 7. fixup_irq() is gone, as is arch/arm/mach-*/include/mach/irq.h |
162 | 162 | ||
163 | Please note that this will not solve all problems - some of them are | 163 | Please note that this will not solve all problems - some of them are |
164 | hardware based. Mixing level-based and edge-based IRQs on the same | 164 | hardware based. Mixing level-based and edge-based IRQs on the same |
diff --git a/Documentation/arm/README b/Documentation/arm/README index 9b9c8226fdc4..d98783fbe0c7 100644 --- a/Documentation/arm/README +++ b/Documentation/arm/README | |||
@@ -79,7 +79,7 @@ Machine/Platform support | |||
79 | To this end, we now have arch/arm/mach-$(MACHINE) directories which are | 79 | To this end, we now have arch/arm/mach-$(MACHINE) directories which are |
80 | designed to house the non-driver files for a particular machine (eg, PCI, | 80 | designed to house the non-driver files for a particular machine (eg, PCI, |
81 | memory management, architecture definitions etc). For all future | 81 | memory management, architecture definitions etc). For all future |
82 | machines, there should be a corresponding include/asm-arm/arch-$(MACHINE) | 82 | machines, there should be a corresponding arch/arm/mach-$(MACHINE)/include/mach |
83 | directory. | 83 | directory. |
84 | 84 | ||
85 | 85 | ||
@@ -176,7 +176,7 @@ Kernel entry (head.S) | |||
176 | class typically based around one or more system on a chip devices, and | 176 | class typically based around one or more system on a chip devices, and |
177 | acts as a natural container around the actual implementations. These | 177 | acts as a natural container around the actual implementations. These |
178 | classes are given directories - arch/arm/mach-<class> and | 178 | classes are given directories - arch/arm/mach-<class> and |
179 | include/asm-arm/arch-<class> - which contain the source files to | 179 | arch/arm/mach-<class> - which contain the source files to/include/mach |
180 | support the machine class. This directories also contain any machine | 180 | support the machine class. This directories also contain any machine |
181 | specific supporting code. | 181 | specific supporting code. |
182 | 182 | ||
diff --git a/Documentation/arm/Samsung-S3C24XX/GPIO.txt b/Documentation/arm/Samsung-S3C24XX/GPIO.txt index 8caea8c237ee..b5d20c0b2ab4 100644 --- a/Documentation/arm/Samsung-S3C24XX/GPIO.txt +++ b/Documentation/arm/Samsung-S3C24XX/GPIO.txt | |||
@@ -16,13 +16,13 @@ Introduction | |||
16 | Headers | 16 | Headers |
17 | ------- | 17 | ------- |
18 | 18 | ||
19 | See include/asm-arm/arch-s3c2410/regs-gpio.h for the list | 19 | See arch/arm/mach-s3c2410/include/mach/regs-gpio.h for the list |
20 | of GPIO pins, and the configuration values for them. This | 20 | of GPIO pins, and the configuration values for them. This |
21 | is included by using #include <asm/arch/regs-gpio.h> | 21 | is included by using #include <mach/regs-gpio.h> |
22 | 22 | ||
23 | The GPIO management functions are defined in the hardware | 23 | The GPIO management functions are defined in the hardware |
24 | header include/asm-arm/arch-s3c2410/hardware.h which can be | 24 | header arch/arm/mach-s3c2410/include/mach/hardware.h which can be |
25 | included by #include <asm/arch/hardware.h> | 25 | included by #include <mach/hardware.h> |
26 | 26 | ||
27 | A useful amount of documentation can be found in the hardware | 27 | A useful amount of documentation can be found in the hardware |
28 | header on how the GPIO functions (and others) work. | 28 | header on how the GPIO functions (and others) work. |
diff --git a/Documentation/arm/Samsung-S3C24XX/Overview.txt b/Documentation/arm/Samsung-S3C24XX/Overview.txt index d04e1e30c47f..014a8ec4877d 100644 --- a/Documentation/arm/Samsung-S3C24XX/Overview.txt +++ b/Documentation/arm/Samsung-S3C24XX/Overview.txt | |||
@@ -36,7 +36,7 @@ Layout | |||
36 | in arch/arm/mach-s3c2410 and S3C2440 in arch/arm/mach-s3c2440 | 36 | in arch/arm/mach-s3c2410 and S3C2440 in arch/arm/mach-s3c2440 |
37 | 37 | ||
38 | Register, kernel and platform data definitions are held in the | 38 | Register, kernel and platform data definitions are held in the |
39 | include/asm-arm/arch-s3c2410 directory. | 39 | arch/arm/mach-s3c2410 directory./include/mach |
40 | 40 | ||
41 | 41 | ||
42 | Machines | 42 | Machines |
diff --git a/Documentation/arm/Samsung-S3C24XX/USB-Host.txt b/Documentation/arm/Samsung-S3C24XX/USB-Host.txt index b93b68e2b143..67671eba4231 100644 --- a/Documentation/arm/Samsung-S3C24XX/USB-Host.txt +++ b/Documentation/arm/Samsung-S3C24XX/USB-Host.txt | |||
@@ -49,7 +49,7 @@ Board Support | |||
49 | Platform Data | 49 | Platform Data |
50 | ------------- | 50 | ------------- |
51 | 51 | ||
52 | See linux/include/asm-arm/arch-s3c2410/usb-control.h for the | 52 | See arch/arm/mach-s3c2410/include/mach/usb-control.h for the |
53 | descriptions of the platform device data. An implementation | 53 | descriptions of the platform device data. An implementation |
54 | can be found in linux/arch/arm/mach-s3c2410/usb-simtec.c . | 54 | can be found in linux/arch/arm/mach-s3c2410/usb-simtec.c . |
55 | 55 | ||
diff --git a/Documentation/auxdisplay/Makefile b/Documentation/auxdisplay/Makefile new file mode 100644 index 000000000000..51fe23332c81 --- /dev/null +++ b/Documentation/auxdisplay/Makefile | |||
@@ -0,0 +1,10 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := cfag12864b-example | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||
9 | |||
10 | HOSTCFLAGS_cfag12864b-example.o += -I$(objtree)/usr/include | ||
diff --git a/Documentation/cciss.txt b/Documentation/cciss.txt index 63e59b8847c5..8244c6442faa 100644 --- a/Documentation/cciss.txt +++ b/Documentation/cciss.txt | |||
@@ -112,27 +112,18 @@ Hot plug support for SCSI tape drives | |||
112 | 112 | ||
113 | Hot plugging of SCSI tape drives is supported, with some caveats. | 113 | Hot plugging of SCSI tape drives is supported, with some caveats. |
114 | The cciss driver must be informed that changes to the SCSI bus | 114 | The cciss driver must be informed that changes to the SCSI bus |
115 | have been made, in addition to and prior to informing the SCSI | 115 | have been made. This may be done via the /proc filesystem. |
116 | mid layer. This may be done via the /proc filesystem. For example: | 116 | For example: |
117 | 117 | ||
118 | echo "rescan" > /proc/scsi/cciss0/1 | 118 | echo "rescan" > /proc/scsi/cciss0/1 |
119 | 119 | ||
120 | This causes the adapter to query the adapter about changes to the | 120 | This causes the driver to query the adapter about changes to the |
121 | physical SCSI buses and/or fibre channel arbitrated loop and the | 121 | physical SCSI buses and/or fibre channel arbitrated loop and the |
122 | driver to make note of any new or removed sequential access devices | 122 | driver to make note of any new or removed sequential access devices |
123 | or medium changers. The driver will output messages indicating what | 123 | or medium changers. The driver will output messages indicating what |
124 | devices have been added or removed and the controller, bus, target and | 124 | devices have been added or removed and the controller, bus, target and |
125 | lun used to address the device. Once this is done, the SCSI mid layer | 125 | lun used to address the device. It then notifies the SCSI mid layer |
126 | can be informed of changes to the virtual SCSI bus which the driver | 126 | of these changes. |
127 | presents to it in the usual way. For example: | ||
128 | |||
129 | echo scsi add-single-device 3 2 1 0 > /proc/scsi/scsi | ||
130 | |||
131 | to add a device on controller 3, bus 2, target 1, lun 0. Note that | ||
132 | the driver makes an effort to preserve the devices positions | ||
133 | in the virtual SCSI bus, so if you are only moving tape drives | ||
134 | around on the same adapter and not adding or removing tape drives | ||
135 | from the adapter, informing the SCSI mid layer may not be necessary. | ||
136 | 127 | ||
137 | Note that the naming convention of the /proc filesystem entries | 128 | Note that the naming convention of the /proc filesystem entries |
138 | contains a number in addition to the driver name. (E.g. "cciss0" | 129 | contains a number in addition to the driver name. (E.g. "cciss0" |
diff --git a/Documentation/cli-sti-removal.txt b/Documentation/cli-sti-removal.txt deleted file mode 100644 index 60932b02fcb3..000000000000 --- a/Documentation/cli-sti-removal.txt +++ /dev/null | |||
@@ -1,133 +0,0 @@ | |||
1 | |||
2 | #### cli()/sti() removal guide, started by Ingo Molnar <mingo@redhat.com> | ||
3 | |||
4 | |||
5 | as of 2.5.28, five popular macros have been removed on SMP, and | ||
6 | are being phased out on UP: | ||
7 | |||
8 | cli(), sti(), save_flags(flags), save_flags_cli(flags), restore_flags(flags) | ||
9 | |||
10 | until now it was possible to protect driver code against interrupt | ||
11 | handlers via a cli(), but from now on other, more lightweight methods | ||
12 | have to be used for synchronization, such as spinlocks or semaphores. | ||
13 | |||
14 | for example, driver code that used to do something like: | ||
15 | |||
16 | struct driver_data; | ||
17 | |||
18 | irq_handler (...) | ||
19 | { | ||
20 | .... | ||
21 | driver_data.finish = 1; | ||
22 | driver_data.new_work = 0; | ||
23 | .... | ||
24 | } | ||
25 | |||
26 | ... | ||
27 | |||
28 | ioctl_func (...) | ||
29 | { | ||
30 | ... | ||
31 | cli(); | ||
32 | ... | ||
33 | driver_data.finish = 0; | ||
34 | driver_data.new_work = 2; | ||
35 | ... | ||
36 | sti(); | ||
37 | ... | ||
38 | } | ||
39 | |||
40 | was SMP-correct because the cli() function ensured that no | ||
41 | interrupt handler (amongst them the above irq_handler()) function | ||
42 | would execute while the cli()-ed section is executing. | ||
43 | |||
44 | but from now on a more direct method of locking has to be used: | ||
45 | |||
46 | DEFINE_SPINLOCK(driver_lock); | ||
47 | struct driver_data; | ||
48 | |||
49 | irq_handler (...) | ||
50 | { | ||
51 | unsigned long flags; | ||
52 | .... | ||
53 | spin_lock_irqsave(&driver_lock, flags); | ||
54 | .... | ||
55 | driver_data.finish = 1; | ||
56 | driver_data.new_work = 0; | ||
57 | .... | ||
58 | spin_unlock_irqrestore(&driver_lock, flags); | ||
59 | .... | ||
60 | } | ||
61 | |||
62 | ... | ||
63 | |||
64 | ioctl_func (...) | ||
65 | { | ||
66 | ... | ||
67 | spin_lock_irq(&driver_lock); | ||
68 | ... | ||
69 | driver_data.finish = 0; | ||
70 | driver_data.new_work = 2; | ||
71 | ... | ||
72 | spin_unlock_irq(&driver_lock); | ||
73 | ... | ||
74 | } | ||
75 | |||
76 | the above code has a number of advantages: | ||
77 | |||
78 | - the locking relation is easier to understand - actual lock usage | ||
79 | pinpoints the critical sections. cli() usage is too opaque. | ||
80 | Easier to understand means it's easier to debug. | ||
81 | |||
82 | - it's faster, because spinlocks are faster to acquire than the | ||
83 | potentially heavily-used IRQ lock. Furthermore, your driver does | ||
84 | not have to wait eg. for a big heavy SCSI interrupt to finish, | ||
85 | because the driver_lock spinlock is only used by your driver. | ||
86 | cli() on the other hand was used by many drivers, and extended | ||
87 | the critical section to the whole IRQ handler function - creating | ||
88 | serious lock contention. | ||
89 | |||
90 | |||
91 | to make the transition easier, we've still kept the cli(), sti(), | ||
92 | save_flags(), save_flags_cli() and restore_flags() macros defined | ||
93 | on UP systems - but their usage will be phased out until 2.6 is | ||
94 | released. | ||
95 | |||
96 | drivers that want to disable local interrupts (interrupts on the | ||
97 | current CPU), can use the following five macros: | ||
98 | |||
99 | local_irq_disable(), local_irq_enable(), local_save_flags(flags), | ||
100 | local_irq_save(flags), local_irq_restore(flags) | ||
101 | |||
102 | but beware, their meaning and semantics are much simpler, far from | ||
103 | that of the old cli(), sti(), save_flags(flags) and restore_flags(flags) | ||
104 | SMP meaning: | ||
105 | |||
106 | local_irq_disable() => turn local IRQs off | ||
107 | |||
108 | local_irq_enable() => turn local IRQs on | ||
109 | |||
110 | local_save_flags(flags) => save the current IRQ state into flags. The | ||
111 | state can be on or off. (on some | ||
112 | architectures there's even more bits in it.) | ||
113 | |||
114 | local_irq_save(flags) => save the current IRQ state into flags and | ||
115 | disable interrupts. | ||
116 | |||
117 | local_irq_restore(flags) => restore the IRQ state from flags. | ||
118 | |||
119 | (local_irq_save can save both irqs on and irqs off state, and | ||
120 | local_irq_restore can restore into both irqs on and irqs off state.) | ||
121 | |||
122 | another related change is that synchronize_irq() now takes a parameter: | ||
123 | synchronize_irq(irq). This change too has the purpose of making SMP | ||
124 | synchronization more lightweight - this way you can wait for your own | ||
125 | interrupt handler to finish, no need to wait for other IRQ sources. | ||
126 | |||
127 | |||
128 | why were these changes done? The main reason was the architectural burden | ||
129 | of maintaining the cli()/sti() interface - it became a real problem. The | ||
130 | new interrupt system is much more streamlined, easier to understand, debug, | ||
131 | and it's also a bit faster - the same happened to it that will happen to | ||
132 | cli()/sti() using drivers once they convert to spinlocks :-) | ||
133 | |||
diff --git a/Documentation/connector/Makefile b/Documentation/connector/Makefile new file mode 100644 index 000000000000..8df1a7285a06 --- /dev/null +++ b/Documentation/connector/Makefile | |||
@@ -0,0 +1,11 @@ | |||
1 | ifneq ($(CONFIG_CONNECTOR),) | ||
2 | obj-m += cn_test.o | ||
3 | endif | ||
4 | |||
5 | # List of programs to build | ||
6 | hostprogs-y := ucon | ||
7 | |||
8 | # Tell kbuild to always build the programs | ||
9 | always := $(hostprogs-y) | ||
10 | |||
11 | HOSTCFLAGS_ucon.o += -I$(objtree)/usr/include | ||
diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt index ba0aacde94fb..94bbc27ddd4f 100644 --- a/Documentation/cpu-hotplug.txt +++ b/Documentation/cpu-hotplug.txt | |||
@@ -59,15 +59,10 @@ apicid values in those tables for disabled apics. In the event BIOS doesn't | |||
59 | mark such hot-pluggable cpus as disabled entries, one could use this | 59 | mark such hot-pluggable cpus as disabled entries, one could use this |
60 | parameter "additional_cpus=x" to represent those cpus in the cpu_possible_map. | 60 | parameter "additional_cpus=x" to represent those cpus in the cpu_possible_map. |
61 | 61 | ||
62 | s390 uses the number of cpus it detects at IPL time to also the number of bits | ||
63 | in cpu_possible_map. If it is desired to add additional cpus at a later time | ||
64 | the number should be specified using this option or the possible_cpus option. | ||
65 | |||
66 | possible_cpus=n [s390 only] use this to set hotpluggable cpus. | 62 | possible_cpus=n [s390 only] use this to set hotpluggable cpus. |
67 | This option sets possible_cpus bits in | 63 | This option sets possible_cpus bits in |
68 | cpu_possible_map. Thus keeping the numbers of bits set | 64 | cpu_possible_map. Thus keeping the numbers of bits set |
69 | constant even if the machine gets rebooted. | 65 | constant even if the machine gets rebooted. |
70 | This option overrides additional_cpus. | ||
71 | 66 | ||
72 | CPU maps and such | 67 | CPU maps and such |
73 | ----------------- | 68 | ----------------- |
diff --git a/Documentation/devices.txt b/Documentation/devices.txt index e6244cde26e9..05c80645e4ee 100644 --- a/Documentation/devices.txt +++ b/Documentation/devices.txt | |||
@@ -2560,9 +2560,6 @@ Your cooperation is appreciated. | |||
2560 | 96 = /dev/usb/hiddev0 1st USB HID device | 2560 | 96 = /dev/usb/hiddev0 1st USB HID device |
2561 | ... | 2561 | ... |
2562 | 111 = /dev/usb/hiddev15 16th USB HID device | 2562 | 111 = /dev/usb/hiddev15 16th USB HID device |
2563 | 112 = /dev/usb/auer0 1st auerswald ISDN device | ||
2564 | ... | ||
2565 | 127 = /dev/usb/auer15 16th auerswald ISDN device | ||
2566 | 128 = /dev/usb/brlvgr0 First Braille Voyager device | 2563 | 128 = /dev/usb/brlvgr0 First Braille Voyager device |
2567 | ... | 2564 | ... |
2568 | 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device | 2565 | 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device |
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index c23955404bf5..eb1a47b97427 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt | |||
@@ -19,15 +19,6 @@ Who: Pavel Machek <pavel@suse.cz> | |||
19 | 19 | ||
20 | --------------------------- | 20 | --------------------------- |
21 | 21 | ||
22 | What: old NCR53C9x driver | ||
23 | When: October 2007 | ||
24 | Why: Replaced by the much better esp_scsi driver. Actual low-level | ||
25 | driver can be ported over almost trivially. | ||
26 | Who: David Miller <davem@davemloft.net> | ||
27 | Christoph Hellwig <hch@lst.de> | ||
28 | |||
29 | --------------------------- | ||
30 | |||
31 | What: Video4Linux API 1 ioctls and video_decoder.h from Video devices. | 22 | What: Video4Linux API 1 ioctls and video_decoder.h from Video devices. |
32 | When: December 2008 | 23 | When: December 2008 |
33 | Files: include/linux/video_decoder.h include/linux/videodev.h | 24 | Files: include/linux/video_decoder.h include/linux/videodev.h |
@@ -205,19 +196,6 @@ Who: Tejun Heo <htejun@gmail.com> | |||
205 | 196 | ||
206 | --------------------------- | 197 | --------------------------- |
207 | 198 | ||
208 | What: The arch/ppc and include/asm-ppc directories | ||
209 | When: Jun 2008 | ||
210 | Why: The arch/powerpc tree is the merged architecture for ppc32 and ppc64 | ||
211 | platforms. Currently there are efforts underway to port the remaining | ||
212 | arch/ppc platforms to the merged tree. New submissions to the arch/ppc | ||
213 | tree have been frozen with the 2.6.22 kernel release and that tree will | ||
214 | remain in bug-fix only mode until its scheduled removal. Platforms | ||
215 | that are not ported by June 2008 will be removed due to the lack of an | ||
216 | interested maintainer. | ||
217 | Who: linuxppc-dev@ozlabs.org | ||
218 | |||
219 | --------------------------- | ||
220 | |||
221 | What: i386/x86_64 bzImage symlinks | 199 | What: i386/x86_64 bzImage symlinks |
222 | When: April 2010 | 200 | When: April 2010 |
223 | 201 | ||
diff --git a/Documentation/filesystems/configfs/Makefile b/Documentation/filesystems/configfs/Makefile new file mode 100644 index 000000000000..be7ec5e67dbc --- /dev/null +++ b/Documentation/filesystems/configfs/Makefile | |||
@@ -0,0 +1,3 @@ | |||
1 | ifneq ($(CONFIG_CONFIGFS_FS),) | ||
2 | obj-m += configfs_example_explicit.o configfs_example_macros.o | ||
3 | endif | ||
diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt index 44c97e6accb2..fabcb0e00f25 100644 --- a/Documentation/filesystems/configfs/configfs.txt +++ b/Documentation/filesystems/configfs/configfs.txt | |||
@@ -311,9 +311,20 @@ the subsystem must be ready for it. | |||
311 | [An Example] | 311 | [An Example] |
312 | 312 | ||
313 | The best example of these basic concepts is the simple_children | 313 | The best example of these basic concepts is the simple_children |
314 | subsystem/group and the simple_child item in configfs_example.c It | 314 | subsystem/group and the simple_child item in configfs_example_explicit.c |
315 | shows a trivial object displaying and storing an attribute, and a simple | 315 | and configfs_example_macros.c. It shows a trivial object displaying and |
316 | group creating and destroying these children. | 316 | storing an attribute, and a simple group creating and destroying these |
317 | children. | ||
318 | |||
319 | The only difference between configfs_example_explicit.c and | ||
320 | configfs_example_macros.c is how the attributes of the childless item | ||
321 | are defined. The childless item has extended attributes, each with | ||
322 | their own show()/store() operation. This follows a convention commonly | ||
323 | used in sysfs. configfs_example_explicit.c creates these attributes | ||
324 | by explicitly defining the structures involved. Conversely | ||
325 | configfs_example_macros.c uses some convenience macros from configfs.h | ||
326 | to define the attributes. These macros are similar to their sysfs | ||
327 | counterparts. | ||
317 | 328 | ||
318 | [Hierarchy Navigation and the Subsystem Mutex] | 329 | [Hierarchy Navigation and the Subsystem Mutex] |
319 | 330 | ||
diff --git a/Documentation/filesystems/configfs/configfs_example.c b/Documentation/filesystems/configfs/configfs_example_explicit.c index 039648791701..d428cc9f07f3 100644 --- a/Documentation/filesystems/configfs/configfs_example.c +++ b/Documentation/filesystems/configfs/configfs_example_explicit.c | |||
@@ -1,8 +1,10 @@ | |||
1 | /* | 1 | /* |
2 | * vim: noexpandtab ts=8 sts=0 sw=8: | 2 | * vim: noexpandtab ts=8 sts=0 sw=8: |
3 | * | 3 | * |
4 | * configfs_example.c - This file is a demonstration module containing | 4 | * configfs_example_explicit.c - This file is a demonstration module |
5 | * a number of configfs subsystems. | 5 | * containing a number of configfs subsystems. It explicitly defines |
6 | * each structure without using the helper macros defined in | ||
7 | * configfs.h. | ||
6 | * | 8 | * |
7 | * This program is free software; you can redistribute it and/or | 9 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU General Public | 10 | * modify it under the terms of the GNU General Public |
@@ -281,7 +283,6 @@ static struct config_item *simple_children_make_item(struct config_group *group, | |||
281 | if (!simple_child) | 283 | if (!simple_child) |
282 | return ERR_PTR(-ENOMEM); | 284 | return ERR_PTR(-ENOMEM); |
283 | 285 | ||
284 | |||
285 | config_item_init_type_name(&simple_child->item, name, | 286 | config_item_init_type_name(&simple_child->item, name, |
286 | &simple_child_type); | 287 | &simple_child_type); |
287 | 288 | ||
@@ -302,8 +303,8 @@ static struct configfs_attribute *simple_children_attrs[] = { | |||
302 | }; | 303 | }; |
303 | 304 | ||
304 | static ssize_t simple_children_attr_show(struct config_item *item, | 305 | static ssize_t simple_children_attr_show(struct config_item *item, |
305 | struct configfs_attribute *attr, | 306 | struct configfs_attribute *attr, |
306 | char *page) | 307 | char *page) |
307 | { | 308 | { |
308 | return sprintf(page, | 309 | return sprintf(page, |
309 | "[02-simple-children]\n" | 310 | "[02-simple-children]\n" |
@@ -318,7 +319,7 @@ static void simple_children_release(struct config_item *item) | |||
318 | } | 319 | } |
319 | 320 | ||
320 | static struct configfs_item_operations simple_children_item_ops = { | 321 | static struct configfs_item_operations simple_children_item_ops = { |
321 | .release = simple_children_release, | 322 | .release = simple_children_release, |
322 | .show_attribute = simple_children_attr_show, | 323 | .show_attribute = simple_children_attr_show, |
323 | }; | 324 | }; |
324 | 325 | ||
@@ -368,7 +369,6 @@ static struct config_group *group_children_make_group(struct config_group *group | |||
368 | if (!simple_children) | 369 | if (!simple_children) |
369 | return ERR_PTR(-ENOMEM); | 370 | return ERR_PTR(-ENOMEM); |
370 | 371 | ||
371 | |||
372 | config_group_init_type_name(&simple_children->group, name, | 372 | config_group_init_type_name(&simple_children->group, name, |
373 | &simple_children_type); | 373 | &simple_children_type); |
374 | 374 | ||
@@ -387,8 +387,8 @@ static struct configfs_attribute *group_children_attrs[] = { | |||
387 | }; | 387 | }; |
388 | 388 | ||
389 | static ssize_t group_children_attr_show(struct config_item *item, | 389 | static ssize_t group_children_attr_show(struct config_item *item, |
390 | struct configfs_attribute *attr, | 390 | struct configfs_attribute *attr, |
391 | char *page) | 391 | char *page) |
392 | { | 392 | { |
393 | return sprintf(page, | 393 | return sprintf(page, |
394 | "[03-group-children]\n" | 394 | "[03-group-children]\n" |
diff --git a/Documentation/filesystems/configfs/configfs_example_macros.c b/Documentation/filesystems/configfs/configfs_example_macros.c new file mode 100644 index 000000000000..d8e30a0378aa --- /dev/null +++ b/Documentation/filesystems/configfs/configfs_example_macros.c | |||
@@ -0,0 +1,448 @@ | |||
1 | /* | ||
2 | * vim: noexpandtab ts=8 sts=0 sw=8: | ||
3 | * | ||
4 | * configfs_example_macros.c - This file is a demonstration module | ||
5 | * containing a number of configfs subsystems. It uses the helper | ||
6 | * macros defined by configfs.h | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2 of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * This program is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU General Public | ||
19 | * License along with this program; if not, write to the | ||
20 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
21 | * Boston, MA 021110-1307, USA. | ||
22 | * | ||
23 | * Based on sysfs: | ||
24 | * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel | ||
25 | * | ||
26 | * configfs Copyright (C) 2005 Oracle. All rights reserved. | ||
27 | */ | ||
28 | |||
29 | #include <linux/init.h> | ||
30 | #include <linux/module.h> | ||
31 | #include <linux/slab.h> | ||
32 | |||
33 | #include <linux/configfs.h> | ||
34 | |||
35 | |||
36 | |||
37 | /* | ||
38 | * 01-childless | ||
39 | * | ||
40 | * This first example is a childless subsystem. It cannot create | ||
41 | * any config_items. It just has attributes. | ||
42 | * | ||
43 | * Note that we are enclosing the configfs_subsystem inside a container. | ||
44 | * This is not necessary if a subsystem has no attributes directly | ||
45 | * on the subsystem. See the next example, 02-simple-children, for | ||
46 | * such a subsystem. | ||
47 | */ | ||
48 | |||
49 | struct childless { | ||
50 | struct configfs_subsystem subsys; | ||
51 | int showme; | ||
52 | int storeme; | ||
53 | }; | ||
54 | |||
55 | static inline struct childless *to_childless(struct config_item *item) | ||
56 | { | ||
57 | return item ? container_of(to_configfs_subsystem(to_config_group(item)), struct childless, subsys) : NULL; | ||
58 | } | ||
59 | |||
60 | CONFIGFS_ATTR_STRUCT(childless); | ||
61 | #define CHILDLESS_ATTR(_name, _mode, _show, _store) \ | ||
62 | struct childless_attribute childless_attr_##_name = __CONFIGFS_ATTR(_name, _mode, _show, _store) | ||
63 | #define CHILDLESS_ATTR_RO(_name, _show) \ | ||
64 | struct childless_attribute childless_attr_##_name = __CONFIGFS_ATTR_RO(_name, _show); | ||
65 | |||
66 | static ssize_t childless_showme_read(struct childless *childless, | ||
67 | char *page) | ||
68 | { | ||
69 | ssize_t pos; | ||
70 | |||
71 | pos = sprintf(page, "%d\n", childless->showme); | ||
72 | childless->showme++; | ||
73 | |||
74 | return pos; | ||
75 | } | ||
76 | |||
77 | static ssize_t childless_storeme_read(struct childless *childless, | ||
78 | char *page) | ||
79 | { | ||
80 | return sprintf(page, "%d\n", childless->storeme); | ||
81 | } | ||
82 | |||
83 | static ssize_t childless_storeme_write(struct childless *childless, | ||
84 | const char *page, | ||
85 | size_t count) | ||
86 | { | ||
87 | unsigned long tmp; | ||
88 | char *p = (char *) page; | ||
89 | |||
90 | tmp = simple_strtoul(p, &p, 10); | ||
91 | if (!p || (*p && (*p != '\n'))) | ||
92 | return -EINVAL; | ||
93 | |||
94 | if (tmp > INT_MAX) | ||
95 | return -ERANGE; | ||
96 | |||
97 | childless->storeme = tmp; | ||
98 | |||
99 | return count; | ||
100 | } | ||
101 | |||
102 | static ssize_t childless_description_read(struct childless *childless, | ||
103 | char *page) | ||
104 | { | ||
105 | return sprintf(page, | ||
106 | "[01-childless]\n" | ||
107 | "\n" | ||
108 | "The childless subsystem is the simplest possible subsystem in\n" | ||
109 | "configfs. It does not support the creation of child config_items.\n" | ||
110 | "It only has a few attributes. In fact, it isn't much different\n" | ||
111 | "than a directory in /proc.\n"); | ||
112 | } | ||
113 | |||
114 | CHILDLESS_ATTR_RO(showme, childless_showme_read); | ||
115 | CHILDLESS_ATTR(storeme, S_IRUGO | S_IWUSR, childless_storeme_read, | ||
116 | childless_storeme_write); | ||
117 | CHILDLESS_ATTR_RO(description, childless_description_read); | ||
118 | |||
119 | static struct configfs_attribute *childless_attrs[] = { | ||
120 | &childless_attr_showme.attr, | ||
121 | &childless_attr_storeme.attr, | ||
122 | &childless_attr_description.attr, | ||
123 | NULL, | ||
124 | }; | ||
125 | |||
126 | CONFIGFS_ATTR_OPS(childless); | ||
127 | static struct configfs_item_operations childless_item_ops = { | ||
128 | .show_attribute = childless_attr_show, | ||
129 | .store_attribute = childless_attr_store, | ||
130 | }; | ||
131 | |||
132 | static struct config_item_type childless_type = { | ||
133 | .ct_item_ops = &childless_item_ops, | ||
134 | .ct_attrs = childless_attrs, | ||
135 | .ct_owner = THIS_MODULE, | ||
136 | }; | ||
137 | |||
138 | static struct childless childless_subsys = { | ||
139 | .subsys = { | ||
140 | .su_group = { | ||
141 | .cg_item = { | ||
142 | .ci_namebuf = "01-childless", | ||
143 | .ci_type = &childless_type, | ||
144 | }, | ||
145 | }, | ||
146 | }, | ||
147 | }; | ||
148 | |||
149 | |||
150 | /* ----------------------------------------------------------------- */ | ||
151 | |||
152 | /* | ||
153 | * 02-simple-children | ||
154 | * | ||
155 | * This example merely has a simple one-attribute child. Note that | ||
156 | * there is no extra attribute structure, as the child's attribute is | ||
157 | * known from the get-go. Also, there is no container for the | ||
158 | * subsystem, as it has no attributes of its own. | ||
159 | */ | ||
160 | |||
161 | struct simple_child { | ||
162 | struct config_item item; | ||
163 | int storeme; | ||
164 | }; | ||
165 | |||
166 | static inline struct simple_child *to_simple_child(struct config_item *item) | ||
167 | { | ||
168 | return item ? container_of(item, struct simple_child, item) : NULL; | ||
169 | } | ||
170 | |||
171 | static struct configfs_attribute simple_child_attr_storeme = { | ||
172 | .ca_owner = THIS_MODULE, | ||
173 | .ca_name = "storeme", | ||
174 | .ca_mode = S_IRUGO | S_IWUSR, | ||
175 | }; | ||
176 | |||
177 | static struct configfs_attribute *simple_child_attrs[] = { | ||
178 | &simple_child_attr_storeme, | ||
179 | NULL, | ||
180 | }; | ||
181 | |||
182 | static ssize_t simple_child_attr_show(struct config_item *item, | ||
183 | struct configfs_attribute *attr, | ||
184 | char *page) | ||
185 | { | ||
186 | ssize_t count; | ||
187 | struct simple_child *simple_child = to_simple_child(item); | ||
188 | |||
189 | count = sprintf(page, "%d\n", simple_child->storeme); | ||
190 | |||
191 | return count; | ||
192 | } | ||
193 | |||
194 | static ssize_t simple_child_attr_store(struct config_item *item, | ||
195 | struct configfs_attribute *attr, | ||
196 | const char *page, size_t count) | ||
197 | { | ||
198 | struct simple_child *simple_child = to_simple_child(item); | ||
199 | unsigned long tmp; | ||
200 | char *p = (char *) page; | ||
201 | |||
202 | tmp = simple_strtoul(p, &p, 10); | ||
203 | if (!p || (*p && (*p != '\n'))) | ||
204 | return -EINVAL; | ||
205 | |||
206 | if (tmp > INT_MAX) | ||
207 | return -ERANGE; | ||
208 | |||
209 | simple_child->storeme = tmp; | ||
210 | |||
211 | return count; | ||
212 | } | ||
213 | |||
214 | static void simple_child_release(struct config_item *item) | ||
215 | { | ||
216 | kfree(to_simple_child(item)); | ||
217 | } | ||
218 | |||
219 | static struct configfs_item_operations simple_child_item_ops = { | ||
220 | .release = simple_child_release, | ||
221 | .show_attribute = simple_child_attr_show, | ||
222 | .store_attribute = simple_child_attr_store, | ||
223 | }; | ||
224 | |||
225 | static struct config_item_type simple_child_type = { | ||
226 | .ct_item_ops = &simple_child_item_ops, | ||
227 | .ct_attrs = simple_child_attrs, | ||
228 | .ct_owner = THIS_MODULE, | ||
229 | }; | ||
230 | |||
231 | |||
232 | struct simple_children { | ||
233 | struct config_group group; | ||
234 | }; | ||
235 | |||
236 | static inline struct simple_children *to_simple_children(struct config_item *item) | ||
237 | { | ||
238 | return item ? container_of(to_config_group(item), struct simple_children, group) : NULL; | ||
239 | } | ||
240 | |||
241 | static struct config_item *simple_children_make_item(struct config_group *group, const char *name) | ||
242 | { | ||
243 | struct simple_child *simple_child; | ||
244 | |||
245 | simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL); | ||
246 | if (!simple_child) | ||
247 | return ERR_PTR(-ENOMEM); | ||
248 | |||
249 | config_item_init_type_name(&simple_child->item, name, | ||
250 | &simple_child_type); | ||
251 | |||
252 | simple_child->storeme = 0; | ||
253 | |||
254 | return &simple_child->item; | ||
255 | } | ||
256 | |||
257 | static struct configfs_attribute simple_children_attr_description = { | ||
258 | .ca_owner = THIS_MODULE, | ||
259 | .ca_name = "description", | ||
260 | .ca_mode = S_IRUGO, | ||
261 | }; | ||
262 | |||
263 | static struct configfs_attribute *simple_children_attrs[] = { | ||
264 | &simple_children_attr_description, | ||
265 | NULL, | ||
266 | }; | ||
267 | |||
268 | static ssize_t simple_children_attr_show(struct config_item *item, | ||
269 | struct configfs_attribute *attr, | ||
270 | char *page) | ||
271 | { | ||
272 | return sprintf(page, | ||
273 | "[02-simple-children]\n" | ||
274 | "\n" | ||
275 | "This subsystem allows the creation of child config_items. These\n" | ||
276 | "items have only one attribute that is readable and writeable.\n"); | ||
277 | } | ||
278 | |||
279 | static void simple_children_release(struct config_item *item) | ||
280 | { | ||
281 | kfree(to_simple_children(item)); | ||
282 | } | ||
283 | |||
284 | static struct configfs_item_operations simple_children_item_ops = { | ||
285 | .release = simple_children_release, | ||
286 | .show_attribute = simple_children_attr_show, | ||
287 | }; | ||
288 | |||
289 | /* | ||
290 | * Note that, since no extra work is required on ->drop_item(), | ||
291 | * no ->drop_item() is provided. | ||
292 | */ | ||
293 | static struct configfs_group_operations simple_children_group_ops = { | ||
294 | .make_item = simple_children_make_item, | ||
295 | }; | ||
296 | |||
297 | static struct config_item_type simple_children_type = { | ||
298 | .ct_item_ops = &simple_children_item_ops, | ||
299 | .ct_group_ops = &simple_children_group_ops, | ||
300 | .ct_attrs = simple_children_attrs, | ||
301 | .ct_owner = THIS_MODULE, | ||
302 | }; | ||
303 | |||
304 | static struct configfs_subsystem simple_children_subsys = { | ||
305 | .su_group = { | ||
306 | .cg_item = { | ||
307 | .ci_namebuf = "02-simple-children", | ||
308 | .ci_type = &simple_children_type, | ||
309 | }, | ||
310 | }, | ||
311 | }; | ||
312 | |||
313 | |||
314 | /* ----------------------------------------------------------------- */ | ||
315 | |||
316 | /* | ||
317 | * 03-group-children | ||
318 | * | ||
319 | * This example reuses the simple_children group from above. However, | ||
320 | * the simple_children group is not the subsystem itself, it is a | ||
321 | * child of the subsystem. Creation of a group in the subsystem creates | ||
322 | * a new simple_children group. That group can then have simple_child | ||
323 | * children of its own. | ||
324 | */ | ||
325 | |||
326 | static struct config_group *group_children_make_group(struct config_group *group, const char *name) | ||
327 | { | ||
328 | struct simple_children *simple_children; | ||
329 | |||
330 | simple_children = kzalloc(sizeof(struct simple_children), | ||
331 | GFP_KERNEL); | ||
332 | if (!simple_children) | ||
333 | return ERR_PTR(-ENOMEM); | ||
334 | |||
335 | config_group_init_type_name(&simple_children->group, name, | ||
336 | &simple_children_type); | ||
337 | |||
338 | return &simple_children->group; | ||
339 | } | ||
340 | |||
341 | static struct configfs_attribute group_children_attr_description = { | ||
342 | .ca_owner = THIS_MODULE, | ||
343 | .ca_name = "description", | ||
344 | .ca_mode = S_IRUGO, | ||
345 | }; | ||
346 | |||
347 | static struct configfs_attribute *group_children_attrs[] = { | ||
348 | &group_children_attr_description, | ||
349 | NULL, | ||
350 | }; | ||
351 | |||
352 | static ssize_t group_children_attr_show(struct config_item *item, | ||
353 | struct configfs_attribute *attr, | ||
354 | char *page) | ||
355 | { | ||
356 | return sprintf(page, | ||
357 | "[03-group-children]\n" | ||
358 | "\n" | ||
359 | "This subsystem allows the creation of child config_groups. These\n" | ||
360 | "groups are like the subsystem simple-children.\n"); | ||
361 | } | ||
362 | |||
363 | static struct configfs_item_operations group_children_item_ops = { | ||
364 | .show_attribute = group_children_attr_show, | ||
365 | }; | ||
366 | |||
367 | /* | ||
368 | * Note that, since no extra work is required on ->drop_item(), | ||
369 | * no ->drop_item() is provided. | ||
370 | */ | ||
371 | static struct configfs_group_operations group_children_group_ops = { | ||
372 | .make_group = group_children_make_group, | ||
373 | }; | ||
374 | |||
375 | static struct config_item_type group_children_type = { | ||
376 | .ct_item_ops = &group_children_item_ops, | ||
377 | .ct_group_ops = &group_children_group_ops, | ||
378 | .ct_attrs = group_children_attrs, | ||
379 | .ct_owner = THIS_MODULE, | ||
380 | }; | ||
381 | |||
382 | static struct configfs_subsystem group_children_subsys = { | ||
383 | .su_group = { | ||
384 | .cg_item = { | ||
385 | .ci_namebuf = "03-group-children", | ||
386 | .ci_type = &group_children_type, | ||
387 | }, | ||
388 | }, | ||
389 | }; | ||
390 | |||
391 | /* ----------------------------------------------------------------- */ | ||
392 | |||
393 | /* | ||
394 | * We're now done with our subsystem definitions. | ||
395 | * For convenience in this module, here's a list of them all. It | ||
396 | * allows the init function to easily register them. Most modules | ||
397 | * will only have one subsystem, and will only call register_subsystem | ||
398 | * on it directly. | ||
399 | */ | ||
400 | static struct configfs_subsystem *example_subsys[] = { | ||
401 | &childless_subsys.subsys, | ||
402 | &simple_children_subsys, | ||
403 | &group_children_subsys, | ||
404 | NULL, | ||
405 | }; | ||
406 | |||
407 | static int __init configfs_example_init(void) | ||
408 | { | ||
409 | int ret; | ||
410 | int i; | ||
411 | struct configfs_subsystem *subsys; | ||
412 | |||
413 | for (i = 0; example_subsys[i]; i++) { | ||
414 | subsys = example_subsys[i]; | ||
415 | |||
416 | config_group_init(&subsys->su_group); | ||
417 | mutex_init(&subsys->su_mutex); | ||
418 | ret = configfs_register_subsystem(subsys); | ||
419 | if (ret) { | ||
420 | printk(KERN_ERR "Error %d while registering subsystem %s\n", | ||
421 | ret, | ||
422 | subsys->su_group.cg_item.ci_namebuf); | ||
423 | goto out_unregister; | ||
424 | } | ||
425 | } | ||
426 | |||
427 | return 0; | ||
428 | |||
429 | out_unregister: | ||
430 | for (; i >= 0; i--) { | ||
431 | configfs_unregister_subsystem(example_subsys[i]); | ||
432 | } | ||
433 | |||
434 | return ret; | ||
435 | } | ||
436 | |||
437 | static void __exit configfs_example_exit(void) | ||
438 | { | ||
439 | int i; | ||
440 | |||
441 | for (i = 0; example_subsys[i]; i++) { | ||
442 | configfs_unregister_subsystem(example_subsys[i]); | ||
443 | } | ||
444 | } | ||
445 | |||
446 | module_init(configfs_example_init); | ||
447 | module_exit(configfs_example_exit); | ||
448 | MODULE_LICENSE("GPL"); | ||
diff --git a/Documentation/filesystems/quota.txt b/Documentation/filesystems/quota.txt index a590c4093eff..5e8de25bf0f1 100644 --- a/Documentation/filesystems/quota.txt +++ b/Documentation/filesystems/quota.txt | |||
@@ -3,14 +3,14 @@ Quota subsystem | |||
3 | =============== | 3 | =============== |
4 | 4 | ||
5 | Quota subsystem allows system administrator to set limits on used space and | 5 | Quota subsystem allows system administrator to set limits on used space and |
6 | number of used inodes (inode is a filesystem structure which is associated | 6 | number of used inodes (inode is a filesystem structure which is associated with |
7 | with each file or directory) for users and/or groups. For both used space and | 7 | each file or directory) for users and/or groups. For both used space and number |
8 | number of used inodes there are actually two limits. The first one is called | 8 | of used inodes there are actually two limits. The first one is called softlimit |
9 | softlimit and the second one hardlimit. An user can never exceed a hardlimit | 9 | and the second one hardlimit. An user can never exceed a hardlimit for any |
10 | for any resource. User is allowed to exceed softlimit but only for limited | 10 | resource (unless he has CAP_SYS_RESOURCE capability). User is allowed to exceed |
11 | period of time. This period is called "grace period" or "grace time". When | 11 | softlimit but only for limited period of time. This period is called "grace |
12 | grace time is over, user is not able to allocate more space/inodes until he | 12 | period" or "grace time". When grace time is over, user is not able to allocate |
13 | frees enough of them to get below softlimit. | 13 | more space/inodes until he frees enough of them to get below softlimit. |
14 | 14 | ||
15 | Quota limits (and amount of grace time) are set independently for each | 15 | Quota limits (and amount of grace time) are set independently for each |
16 | filesystem. | 16 | filesystem. |
@@ -53,6 +53,12 @@ in parentheses): | |||
53 | QUOTA_NL_BSOFTLONGWARN - space (block) softlimit is exceeded | 53 | QUOTA_NL_BSOFTLONGWARN - space (block) softlimit is exceeded |
54 | longer than given grace period. | 54 | longer than given grace period. |
55 | QUOTA_NL_BSOFTWARN - space (block) softlimit | 55 | QUOTA_NL_BSOFTWARN - space (block) softlimit |
56 | - four warnings are also defined for the event when user stops | ||
57 | exceeding some limit: | ||
58 | QUOTA_NL_IHARDBELOW - inode hardlimit | ||
59 | QUOTA_NL_ISOFTBELOW - inode softlimit | ||
60 | QUOTA_NL_BHARDBELOW - space (block) hardlimit | ||
61 | QUOTA_NL_BSOFTBELOW - space (block) softlimit | ||
56 | QUOTA_NL_A_DEV_MAJOR (u32) | 62 | QUOTA_NL_A_DEV_MAJOR (u32) |
57 | - major number of a device with the affected filesystem | 63 | - major number of a device with the affected filesystem |
58 | QUOTA_NL_A_DEV_MINOR (u32) | 64 | QUOTA_NL_A_DEV_MINOR (u32) |
diff --git a/Documentation/ftrace.txt b/Documentation/ftrace.txt index f218f616ff6b..d330fe3103da 100644 --- a/Documentation/ftrace.txt +++ b/Documentation/ftrace.txt | |||
@@ -4,6 +4,7 @@ | |||
4 | Copyright 2008 Red Hat Inc. | 4 | Copyright 2008 Red Hat Inc. |
5 | Author: Steven Rostedt <srostedt@redhat.com> | 5 | Author: Steven Rostedt <srostedt@redhat.com> |
6 | License: The GNU Free Documentation License, Version 1.2 | 6 | License: The GNU Free Documentation License, Version 1.2 |
7 | (dual licensed under the GPL v2) | ||
7 | Reviewers: Elias Oltmanns, Randy Dunlap, Andrew Morton, | 8 | Reviewers: Elias Oltmanns, Randy Dunlap, Andrew Morton, |
8 | John Kacur, and David Teigland. | 9 | John Kacur, and David Teigland. |
9 | 10 | ||
diff --git a/Documentation/hwmon/dme1737 b/Documentation/hwmon/dme1737 index 8f446070e64a..001d2e70bc11 100644 --- a/Documentation/hwmon/dme1737 +++ b/Documentation/hwmon/dme1737 | |||
@@ -10,6 +10,10 @@ Supported chips: | |||
10 | Prefix: 'sch311x' | 10 | Prefix: 'sch311x' |
11 | Addresses scanned: none, address read from Super-I/O config space | 11 | Addresses scanned: none, address read from Super-I/O config space |
12 | Datasheet: http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf | 12 | Datasheet: http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf |
13 | * SMSC SCH5027 | ||
14 | Prefix: 'sch5027' | ||
15 | Addresses scanned: I2C 0x2c, 0x2d, 0x2e | ||
16 | Datasheet: Provided by SMSC upon request and under NDA | ||
13 | 17 | ||
14 | Authors: | 18 | Authors: |
15 | Juerg Haefliger <juergh@gmail.com> | 19 | Juerg Haefliger <juergh@gmail.com> |
@@ -22,34 +26,36 @@ Module Parameters | |||
22 | and PWM output control functions. Using this parameter | 26 | and PWM output control functions. Using this parameter |
23 | shouldn't be required since the BIOS usually takes care | 27 | shouldn't be required since the BIOS usually takes care |
24 | of this. | 28 | of this. |
25 | 29 | * probe_all_addr: bool Include non-standard LPC addresses 0x162e and 0x164e | |
26 | Note that there is no need to use this parameter if the driver loads without | 30 | when probing for ISA devices. This is required for the |
27 | complaining. The driver will say so if it is necessary. | 31 | following boards: |
32 | - VIA EPIA SN18000 | ||
28 | 33 | ||
29 | 34 | ||
30 | Description | 35 | Description |
31 | ----------- | 36 | ----------- |
32 | 37 | ||
33 | This driver implements support for the hardware monitoring capabilities of the | 38 | This driver implements support for the hardware monitoring capabilities of the |
34 | SMSC DME1737 and Asus A8000 (which are the same) and SMSC SCH311x Super-I/O | 39 | SMSC DME1737 and Asus A8000 (which are the same), SMSC SCH5027, and SMSC |
35 | chips. These chips feature monitoring of 3 temp sensors temp[1-3] (2 remote | 40 | SCH311x Super-I/O chips. These chips feature monitoring of 3 temp sensors |
36 | diodes and 1 internal), 7 voltages in[0-6] (6 external and 1 internal) and up | 41 | temp[1-3] (2 remote diodes and 1 internal), 7 voltages in[0-6] (6 external and |
37 | to 6 fan speeds fan[1-6]. Additionally, the chips implement up to 5 PWM | 42 | 1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement |
38 | outputs pwm[1-3,5-6] for controlling fan speeds both manually and | 43 | up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and |
39 | automatically. | 44 | automatically. |
40 | 45 | ||
41 | For the DME1737 and A8000, fan[1-2] and pwm[1-2] are always present. Fan[3-6] | 46 | For the DME1737, A8000 and SCH5027, fan[1-2] and pwm[1-2] are always present. |
42 | and pwm[3,5-6] are optional features and their availability depends on the | 47 | Fan[3-6] and pwm[3,5-6] are optional features and their availability depends on |
43 | configuration of the chip. The driver will detect which features are present | 48 | the configuration of the chip. The driver will detect which features are |
44 | during initialization and create the sysfs attributes accordingly. | 49 | present during initialization and create the sysfs attributes accordingly. |
45 | 50 | ||
46 | For the SCH311x, fan[1-3] and pwm[1-3] are always present and fan[4-6] and | 51 | For the SCH311x, fan[1-3] and pwm[1-3] are always present and fan[4-6] and |
47 | pwm[5-6] don't exist. | 52 | pwm[5-6] don't exist. |
48 | 53 | ||
49 | The hardware monitoring features of the DME1737 and A8000 are only accessible | 54 | The hardware monitoring features of the DME1737, A8000, and SCH5027 are only |
50 | via SMBus, while the SCH311x only provides access via the ISA bus. The driver | 55 | accessible via SMBus, while the SCH311x only provides access via the ISA bus. |
51 | will therefore register itself as an I2C client driver if it detects a DME1737 | 56 | The driver will therefore register itself as an I2C client driver if it detects |
52 | or A8000 and as a platform driver if it detects a SCH311x chip. | 57 | a DME1737, A8000, or SCH5027 and as a platform driver if it detects a SCH311x |
58 | chip. | ||
53 | 59 | ||
54 | 60 | ||
55 | Voltage Monitoring | 61 | Voltage Monitoring |
@@ -60,6 +66,7 @@ scaling resistors. The values returned by the driver therefore reflect true | |||
60 | millivolts and don't need scaling. The voltage inputs are mapped as follows | 66 | millivolts and don't need scaling. The voltage inputs are mapped as follows |
61 | (the last column indicates the input ranges): | 67 | (the last column indicates the input ranges): |
62 | 68 | ||
69 | DME1737, A8000: | ||
63 | in0: +5VTR (+5V standby) 0V - 6.64V | 70 | in0: +5VTR (+5V standby) 0V - 6.64V |
64 | in1: Vccp (processor core) 0V - 3V | 71 | in1: Vccp (processor core) 0V - 3V |
65 | in2: VCC (internal +3.3V) 0V - 4.38V | 72 | in2: VCC (internal +3.3V) 0V - 4.38V |
@@ -68,6 +75,24 @@ millivolts and don't need scaling. The voltage inputs are mapped as follows | |||
68 | in5: VTR (+3.3V standby) 0V - 4.38V | 75 | in5: VTR (+3.3V standby) 0V - 4.38V |
69 | in6: Vbat (+3.0V) 0V - 4.38V | 76 | in6: Vbat (+3.0V) 0V - 4.38V |
70 | 77 | ||
78 | SCH311x: | ||
79 | in0: +2.5V 0V - 6.64V | ||
80 | in1: Vccp (processor core) 0V - 2V | ||
81 | in2: VCC (internal +3.3V) 0V - 4.38V | ||
82 | in3: +5V 0V - 6.64V | ||
83 | in4: +12V 0V - 16V | ||
84 | in5: VTR (+3.3V standby) 0V - 4.38V | ||
85 | in6: Vbat (+3.0V) 0V - 4.38V | ||
86 | |||
87 | SCH5027: | ||
88 | in0: +5VTR (+5V standby) 0V - 6.64V | ||
89 | in1: Vccp (processor core) 0V - 3V | ||
90 | in2: VCC (internal +3.3V) 0V - 4.38V | ||
91 | in3: V2_IN 0V - 1.5V | ||
92 | in4: V1_IN 0V - 1.5V | ||
93 | in5: VTR (+3.3V standby) 0V - 4.38V | ||
94 | in6: Vbat (+3.0V) 0V - 4.38V | ||
95 | |||
71 | Each voltage input has associated min and max limits which trigger an alarm | 96 | Each voltage input has associated min and max limits which trigger an alarm |
72 | when crossed. | 97 | when crossed. |
73 | 98 | ||
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87 index f4ce1fdbeff6..3496b7020e7c 100644 --- a/Documentation/hwmon/it87 +++ b/Documentation/hwmon/it87 | |||
@@ -6,12 +6,14 @@ Supported chips: | |||
6 | Prefix: 'it87' | 6 | Prefix: 'it87' |
7 | Addresses scanned: from Super I/O config space (8 I/O ports) | 7 | Addresses scanned: from Super I/O config space (8 I/O ports) |
8 | Datasheet: Publicly available at the ITE website | 8 | Datasheet: Publicly available at the ITE website |
9 | http://www.ite.com.tw/ | 9 | http://www.ite.com.tw/product_info/file/pc/IT8705F_V.0.4.1.pdf |
10 | * IT8712F | 10 | * IT8712F |
11 | Prefix: 'it8712' | 11 | Prefix: 'it8712' |
12 | Addresses scanned: from Super I/O config space (8 I/O ports) | 12 | Addresses scanned: from Super I/O config space (8 I/O ports) |
13 | Datasheet: Publicly available at the ITE website | 13 | Datasheet: Publicly available at the ITE website |
14 | http://www.ite.com.tw/ | 14 | http://www.ite.com.tw/product_info/file/pc/IT8712F_V0.9.1.pdf |
15 | http://www.ite.com.tw/product_info/file/pc/Errata%20V0.1%20for%20IT8712F%20V0.9.1.pdf | ||
16 | http://www.ite.com.tw/product_info/file/pc/IT8712F_V0.9.3.pdf | ||
15 | * IT8716F/IT8726F | 17 | * IT8716F/IT8726F |
16 | Prefix: 'it8716' | 18 | Prefix: 'it8716' |
17 | Addresses scanned: from Super I/O config space (8 I/O ports) | 19 | Addresses scanned: from Super I/O config space (8 I/O ports) |
@@ -90,14 +92,13 @@ upper VID bits share their pins with voltage inputs (in5 and in6) so you | |||
90 | can't have both on a given board. | 92 | can't have both on a given board. |
91 | 93 | ||
92 | The IT8716F, IT8718F and later IT8712F revisions have support for | 94 | The IT8716F, IT8718F and later IT8712F revisions have support for |
93 | 2 additional fans. They are supported by the driver for the IT8716F and | 95 | 2 additional fans. The additional fans are supported by the driver. |
94 | IT8718F but not for the IT8712F | ||
95 | 96 | ||
96 | The IT8716F and IT8718F, and late IT8712F and IT8705F also have optional | 97 | The IT8716F and IT8718F, and late IT8712F and IT8705F also have optional |
97 | 16-bit tachometer counters for fans 1 to 3. This is better (no more fan | 98 | 16-bit tachometer counters for fans 1 to 3. This is better (no more fan |
98 | clock divider mess) but not compatible with the older chips and | 99 | clock divider mess) but not compatible with the older chips and |
99 | revisions. For now, the driver only uses the 16-bit mode on the | 100 | revisions. The 16-bit tachometer mode is enabled by the driver when one |
100 | IT8716F and IT8718F. | 101 | of the above chips is detected. |
101 | 102 | ||
102 | The IT8726F is just bit enhanced IT8716F with additional hardware | 103 | The IT8726F is just bit enhanced IT8716F with additional hardware |
103 | for AMD power sequencing. Therefore the chip will appear as IT8716F | 104 | for AMD power sequencing. Therefore the chip will appear as IT8716F |
diff --git a/Documentation/hwmon/lm85 b/Documentation/hwmon/lm85 index 9549237530cf..6d41db7f17f8 100644 --- a/Documentation/hwmon/lm85 +++ b/Documentation/hwmon/lm85 | |||
@@ -96,11 +96,6 @@ initial testing of the ADM1027 it was 1.00 degC steps. Analog Devices has | |||
96 | confirmed this "bug". The ADT7463 is reported to work as described in the | 96 | confirmed this "bug". The ADT7463 is reported to work as described in the |
97 | documentation. The current lm85 driver does not show the offset register. | 97 | documentation. The current lm85 driver does not show the offset register. |
98 | 98 | ||
99 | The ADT7463 has a THERM asserted counter. This counter has a 22.76ms | ||
100 | resolution and a range of 5.8 seconds. The driver implements a 32-bit | ||
101 | accumulator of the counter value to extend the range to over a year. The | ||
102 | counter will stay at it's max value until read. | ||
103 | |||
104 | See the vendor datasheets for more information. There is application note | 99 | See the vendor datasheets for more information. There is application note |
105 | from National (AN-1260) with some additional information about the LM85. | 100 | from National (AN-1260) with some additional information about the LM85. |
106 | The Analog Devices datasheet is very detailed and describes a procedure for | 101 | The Analog Devices datasheet is very detailed and describes a procedure for |
@@ -206,13 +201,15 @@ Configuration choices: | |||
206 | 201 | ||
207 | The National LM85's have two vendor specific configuration | 202 | The National LM85's have two vendor specific configuration |
208 | features. Tach. mode and Spinup Control. For more details on these, | 203 | features. Tach. mode and Spinup Control. For more details on these, |
209 | see the LM85 datasheet or Application Note AN-1260. | 204 | see the LM85 datasheet or Application Note AN-1260. These features |
205 | are not currently supported by the lm85 driver. | ||
210 | 206 | ||
211 | The Analog Devices ADM1027 has several vendor specific enhancements. | 207 | The Analog Devices ADM1027 has several vendor specific enhancements. |
212 | The number of pulses-per-rev of the fans can be set, Tach monitoring | 208 | The number of pulses-per-rev of the fans can be set, Tach monitoring |
213 | can be optimized for PWM operation, and an offset can be applied to | 209 | can be optimized for PWM operation, and an offset can be applied to |
214 | the temperatures to compensate for systemic errors in the | 210 | the temperatures to compensate for systemic errors in the |
215 | measurements. | 211 | measurements. These features are not currently supported by the lm85 |
212 | driver. | ||
216 | 213 | ||
217 | In addition to the ADM1027 features, the ADT7463 also has Tmin control | 214 | In addition to the ADM1027 features, the ADT7463 also has Tmin control |
218 | and THERM asserted counts. Automatic Tmin control acts to adjust the | 215 | and THERM asserted counts. Automatic Tmin control acts to adjust the |
diff --git a/Documentation/hwmon/w83627hf b/Documentation/hwmon/w83627hf index 880a59f53da9..6ee36dbafd64 100644 --- a/Documentation/hwmon/w83627hf +++ b/Documentation/hwmon/w83627hf | |||
@@ -40,10 +40,6 @@ Module Parameters | |||
40 | (default is 1) | 40 | (default is 1) |
41 | Use 'init=0' to bypass initializing the chip. | 41 | Use 'init=0' to bypass initializing the chip. |
42 | Try this if your computer crashes when you load the module. | 42 | Try this if your computer crashes when you load the module. |
43 | * reset: int | ||
44 | (default is 0) | ||
45 | The driver used to reset the chip on load, but does no more. Use | ||
46 | 'reset=1' to restore the old behavior. Report if you need to do this. | ||
47 | 43 | ||
48 | Description | 44 | Description |
49 | ----------- | 45 | ----------- |
diff --git a/Documentation/hwmon/w83791d b/Documentation/hwmon/w83791d index f153b2f6d62c..a67d3b7a7098 100644 --- a/Documentation/hwmon/w83791d +++ b/Documentation/hwmon/w83791d | |||
@@ -22,6 +22,7 @@ Credits: | |||
22 | 22 | ||
23 | Additional contributors: | 23 | Additional contributors: |
24 | Sven Anders <anders@anduras.de> | 24 | Sven Anders <anders@anduras.de> |
25 | Marc Hulsman <m.hulsman@tudelft.nl> | ||
25 | 26 | ||
26 | Module Parameters | 27 | Module Parameters |
27 | ----------------- | 28 | ----------------- |
@@ -67,9 +68,8 @@ on until the temperature falls below the Hysteresis value. | |||
67 | 68 | ||
68 | Fan rotation speeds are reported in RPM (rotations per minute). An alarm is | 69 | Fan rotation speeds are reported in RPM (rotations per minute). An alarm is |
69 | triggered if the rotation speed has dropped below a programmable limit. Fan | 70 | triggered if the rotation speed has dropped below a programmable limit. Fan |
70 | readings can be divided by a programmable divider (1, 2, 4, 8 for fan 1/2/3 | 71 | readings can be divided by a programmable divider (1, 2, 4, 8, 16, |
71 | and 1, 2, 4, 8, 16, 32, 64 or 128 for fan 4/5) to give the readings more | 72 | 32, 64 or 128 for all fans) to give the readings more range or accuracy. |
72 | range or accuracy. | ||
73 | 73 | ||
74 | Voltage sensors (also known as IN sensors) report their values in millivolts. | 74 | Voltage sensors (also known as IN sensors) report their values in millivolts. |
75 | An alarm is triggered if the voltage has crossed a programmable minimum | 75 | An alarm is triggered if the voltage has crossed a programmable minimum |
diff --git a/Documentation/ia64/Makefile b/Documentation/ia64/Makefile new file mode 100644 index 000000000000..b75db69ec483 --- /dev/null +++ b/Documentation/ia64/Makefile | |||
@@ -0,0 +1,8 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := aliasing-test | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||
diff --git a/Documentation/ioctl-number.txt b/Documentation/ioctl-number.txt index 3bb5f466a90d..1c6b545635a2 100644 --- a/Documentation/ioctl-number.txt +++ b/Documentation/ioctl-number.txt | |||
@@ -105,7 +105,6 @@ Code Seq# Include File Comments | |||
105 | 'T' all linux/soundcard.h conflict! | 105 | 'T' all linux/soundcard.h conflict! |
106 | 'T' all asm-i386/ioctls.h conflict! | 106 | 'T' all asm-i386/ioctls.h conflict! |
107 | 'U' 00-EF linux/drivers/usb/usb.h | 107 | 'U' 00-EF linux/drivers/usb/usb.h |
108 | 'U' F0-FF drivers/usb/auerswald.c | ||
109 | 'V' all linux/vt.h | 108 | 'V' all linux/vt.h |
110 | 'W' 00-1F linux/watchdog.h conflict! | 109 | 'W' 00-1F linux/watchdog.h conflict! |
111 | 'W' 00-1F linux/wanrouter.h conflict! | 110 | 'W' 00-1F linux/wanrouter.h conflict! |
diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index b88b0ea54e90..655414821edc 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c | |||
@@ -1447,21 +1447,6 @@ static void configure_device(int fd, const char *tapif, u32 ipaddr) | |||
1447 | err(1, "Bringing interface %s up", tapif); | 1447 | err(1, "Bringing interface %s up", tapif); |
1448 | } | 1448 | } |
1449 | 1449 | ||
1450 | static void get_mac(int fd, const char *tapif, unsigned char hwaddr[6]) | ||
1451 | { | ||
1452 | struct ifreq ifr; | ||
1453 | |||
1454 | memset(&ifr, 0, sizeof(ifr)); | ||
1455 | strcpy(ifr.ifr_name, tapif); | ||
1456 | |||
1457 | /* SIOC stands for Socket I/O Control. G means Get (vs S for Set | ||
1458 | * above). IF means Interface, and HWADDR is hardware address. | ||
1459 | * Simple! */ | ||
1460 | if (ioctl(fd, SIOCGIFHWADDR, &ifr) != 0) | ||
1461 | err(1, "getting hw address for %s", tapif); | ||
1462 | memcpy(hwaddr, ifr.ifr_hwaddr.sa_data, 6); | ||
1463 | } | ||
1464 | |||
1465 | static int get_tun_device(char tapif[IFNAMSIZ]) | 1450 | static int get_tun_device(char tapif[IFNAMSIZ]) |
1466 | { | 1451 | { |
1467 | struct ifreq ifr; | 1452 | struct ifreq ifr; |
@@ -1531,11 +1516,8 @@ static void setup_tun_net(char *arg) | |||
1531 | p = strchr(arg, ':'); | 1516 | p = strchr(arg, ':'); |
1532 | if (p) { | 1517 | if (p) { |
1533 | str2mac(p+1, conf.mac); | 1518 | str2mac(p+1, conf.mac); |
1519 | add_feature(dev, VIRTIO_NET_F_MAC); | ||
1534 | *p = '\0'; | 1520 | *p = '\0'; |
1535 | } else { | ||
1536 | p = arg + strlen(arg); | ||
1537 | /* None supplied; query the randomly assigned mac. */ | ||
1538 | get_mac(ipfd, tapif, conf.mac); | ||
1539 | } | 1521 | } |
1540 | 1522 | ||
1541 | /* arg is now either an IP address or a bridge name */ | 1523 | /* arg is now either an IP address or a bridge name */ |
@@ -1547,13 +1529,10 @@ static void setup_tun_net(char *arg) | |||
1547 | /* Set up the tun device. */ | 1529 | /* Set up the tun device. */ |
1548 | configure_device(ipfd, tapif, ip); | 1530 | configure_device(ipfd, tapif, ip); |
1549 | 1531 | ||
1550 | /* Tell Guest what MAC address to use. */ | ||
1551 | add_feature(dev, VIRTIO_NET_F_MAC); | ||
1552 | add_feature(dev, VIRTIO_F_NOTIFY_ON_EMPTY); | 1532 | add_feature(dev, VIRTIO_F_NOTIFY_ON_EMPTY); |
1553 | /* Expect Guest to handle everything except UFO */ | 1533 | /* Expect Guest to handle everything except UFO */ |
1554 | add_feature(dev, VIRTIO_NET_F_CSUM); | 1534 | add_feature(dev, VIRTIO_NET_F_CSUM); |
1555 | add_feature(dev, VIRTIO_NET_F_GUEST_CSUM); | 1535 | add_feature(dev, VIRTIO_NET_F_GUEST_CSUM); |
1556 | add_feature(dev, VIRTIO_NET_F_MAC); | ||
1557 | add_feature(dev, VIRTIO_NET_F_GUEST_TSO4); | 1536 | add_feature(dev, VIRTIO_NET_F_GUEST_TSO4); |
1558 | add_feature(dev, VIRTIO_NET_F_GUEST_TSO6); | 1537 | add_feature(dev, VIRTIO_NET_F_GUEST_TSO6); |
1559 | add_feature(dev, VIRTIO_NET_F_GUEST_ECN); | 1538 | add_feature(dev, VIRTIO_NET_F_GUEST_ECN); |
diff --git a/Documentation/networking/Makefile b/Documentation/networking/Makefile new file mode 100644 index 000000000000..6d8af1ac56c4 --- /dev/null +++ b/Documentation/networking/Makefile | |||
@@ -0,0 +1,8 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := ifenslave | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||
diff --git a/Documentation/networking/ifenslave.c b/Documentation/networking/ifenslave.c index a12059886755..1b96ccda3836 100644 --- a/Documentation/networking/ifenslave.c +++ b/Documentation/networking/ifenslave.c | |||
@@ -1081,7 +1081,7 @@ static int set_if_addr(char *master_ifname, char *slave_ifname) | |||
1081 | 1081 | ||
1082 | } | 1082 | } |
1083 | 1083 | ||
1084 | ipaddr = ifr.ifr_addr.sa_data; | 1084 | ipaddr = (unsigned char *)ifr.ifr_addr.sa_data; |
1085 | v_print("Interface '%s': set IP %s to %d.%d.%d.%d\n", | 1085 | v_print("Interface '%s': set IP %s to %d.%d.%d.%d\n", |
1086 | slave_ifname, ifra[i].desc, | 1086 | slave_ifname, ifra[i].desc, |
1087 | ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3]); | 1087 | ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3]); |
diff --git a/Documentation/pcmcia/Makefile b/Documentation/pcmcia/Makefile new file mode 100644 index 000000000000..accde871ae77 --- /dev/null +++ b/Documentation/pcmcia/Makefile | |||
@@ -0,0 +1,10 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := crc32hash | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||
9 | |||
10 | HOSTCFLAGS_crc32hash.o += -I$(objtree)/usr/include | ||
diff --git a/Documentation/pcmcia/crc32hash.c b/Documentation/pcmcia/crc32hash.c index cbc36d299af8..4210e5abab8a 100644 --- a/Documentation/pcmcia/crc32hash.c +++ b/Documentation/pcmcia/crc32hash.c | |||
@@ -26,7 +26,7 @@ int main(int argc, char **argv) { | |||
26 | printf("no string passed as argument\n"); | 26 | printf("no string passed as argument\n"); |
27 | return -1; | 27 | return -1; |
28 | } | 28 | } |
29 | result = crc32(argv[1], strlen(argv[1])); | 29 | result = crc32((unsigned char const *)argv[1], strlen(argv[1])); |
30 | printf("0x%x\n", result); | 30 | printf("0x%x\n", result); |
31 | return 0; | 31 | return 0; |
32 | } | 32 | } |
diff --git a/Documentation/power/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt index 49adb1a33514..c40866e8b957 100644 --- a/Documentation/power/pm_qos_interface.txt +++ b/Documentation/power/pm_qos_interface.txt | |||
@@ -1,4 +1,4 @@ | |||
1 | PM quality of Service interface. | 1 | PM Quality Of Service Interface. |
2 | 2 | ||
3 | This interface provides a kernel and user mode interface for registering | 3 | This interface provides a kernel and user mode interface for registering |
4 | performance expectations by drivers, subsystems and user space applications on | 4 | performance expectations by drivers, subsystems and user space applications on |
@@ -7,6 +7,11 @@ one of the parameters. | |||
7 | Currently we have {cpu_dma_latency, network_latency, network_throughput} as the | 7 | Currently we have {cpu_dma_latency, network_latency, network_throughput} as the |
8 | initial set of pm_qos parameters. | 8 | initial set of pm_qos parameters. |
9 | 9 | ||
10 | Each parameters have defined units: | ||
11 | * latency: usec | ||
12 | * timeout: usec | ||
13 | * throughput: kbs (kilo bit / sec) | ||
14 | |||
10 | The infrastructure exposes multiple misc device nodes one per implemented | 15 | The infrastructure exposes multiple misc device nodes one per implemented |
11 | parameter. The set of parameters implement is defined by pm_qos_power_init() | 16 | parameter. The set of parameters implement is defined by pm_qos_power_init() |
12 | and pm_qos_params.h. This is done because having the available parameters | 17 | and pm_qos_params.h. This is done because having the available parameters |
diff --git a/Documentation/power/power_supply_class.txt b/Documentation/power/power_supply_class.txt index a8686e5a6857..c6cd4956047c 100644 --- a/Documentation/power/power_supply_class.txt +++ b/Documentation/power/power_supply_class.txt | |||
@@ -101,6 +101,10 @@ of charge when battery became full/empty". It also could mean "value of | |||
101 | charge when battery considered full/empty at given conditions (temperature, | 101 | charge when battery considered full/empty at given conditions (temperature, |
102 | age)". I.e. these attributes represents real thresholds, not design values. | 102 | age)". I.e. these attributes represents real thresholds, not design values. |
103 | 103 | ||
104 | CHARGE_COUNTER - the current charge counter (in µAh). This could easily | ||
105 | be negative; there is no empty or full value. It is only useful for | ||
106 | relative, time-based measurements. | ||
107 | |||
104 | ENERGY_FULL, ENERGY_EMPTY - same as above but for energy. | 108 | ENERGY_FULL, ENERGY_EMPTY - same as above but for energy. |
105 | 109 | ||
106 | CAPACITY - capacity in percents. | 110 | CAPACITY - capacity in percents. |
diff --git a/Documentation/power/regulator/consumer.txt b/Documentation/power/regulator/consumer.txt new file mode 100644 index 000000000000..82b7a43aadba --- /dev/null +++ b/Documentation/power/regulator/consumer.txt | |||
@@ -0,0 +1,182 @@ | |||
1 | Regulator Consumer Driver Interface | ||
2 | =================================== | ||
3 | |||
4 | This text describes the regulator interface for consumer device drivers. | ||
5 | Please see overview.txt for a description of the terms used in this text. | ||
6 | |||
7 | |||
8 | 1. Consumer Regulator Access (static & dynamic drivers) | ||
9 | ======================================================= | ||
10 | |||
11 | A consumer driver can get access to it's supply regulator by calling :- | ||
12 | |||
13 | regulator = regulator_get(dev, "Vcc"); | ||
14 | |||
15 | The consumer passes in it's struct device pointer and power supply ID. The core | ||
16 | then finds the correct regulator by consulting a machine specific lookup table. | ||
17 | If the lookup is successful then this call will return a pointer to the struct | ||
18 | regulator that supplies this consumer. | ||
19 | |||
20 | To release the regulator the consumer driver should call :- | ||
21 | |||
22 | regulator_put(regulator); | ||
23 | |||
24 | Consumers can be supplied by more than one regulator e.g. codec consumer with | ||
25 | analog and digital supplies :- | ||
26 | |||
27 | digital = regulator_get(dev, "Vcc"); /* digital core */ | ||
28 | analog = regulator_get(dev, "Avdd"); /* analog */ | ||
29 | |||
30 | The regulator access functions regulator_get() and regulator_put() will | ||
31 | usually be called in your device drivers probe() and remove() respectively. | ||
32 | |||
33 | |||
34 | 2. Regulator Output Enable & Disable (static & dynamic drivers) | ||
35 | ==================================================================== | ||
36 | |||
37 | A consumer can enable it's power supply by calling:- | ||
38 | |||
39 | int regulator_enable(regulator); | ||
40 | |||
41 | NOTE: The supply may already be enabled before regulator_enabled() is called. | ||
42 | This may happen if the consumer shares the regulator or the regulator has been | ||
43 | previously enabled by bootloader or kernel board initialization code. | ||
44 | |||
45 | A consumer can determine if a regulator is enabled by calling :- | ||
46 | |||
47 | int regulator_is_enabled(regulator); | ||
48 | |||
49 | This will return > zero when the regulator is enabled. | ||
50 | |||
51 | |||
52 | A consumer can disable it's supply when no longer needed by calling :- | ||
53 | |||
54 | int regulator_disable(regulator); | ||
55 | |||
56 | NOTE: This may not disable the supply if it's shared with other consumers. The | ||
57 | regulator will only be disabled when the enabled reference count is zero. | ||
58 | |||
59 | Finally, a regulator can be forcefully disabled in the case of an emergency :- | ||
60 | |||
61 | int regulator_force_disable(regulator); | ||
62 | |||
63 | NOTE: this will immediately and forcefully shutdown the regulator output. All | ||
64 | consumers will be powered off. | ||
65 | |||
66 | |||
67 | 3. Regulator Voltage Control & Status (dynamic drivers) | ||
68 | ====================================================== | ||
69 | |||
70 | Some consumer drivers need to be able to dynamically change their supply | ||
71 | voltage to match system operating points. e.g. CPUfreq drivers can scale | ||
72 | voltage along with frequency to save power, SD drivers may need to select the | ||
73 | correct card voltage, etc. | ||
74 | |||
75 | Consumers can control their supply voltage by calling :- | ||
76 | |||
77 | int regulator_set_voltage(regulator, min_uV, max_uV); | ||
78 | |||
79 | Where min_uV and max_uV are the minimum and maximum acceptable voltages in | ||
80 | microvolts. | ||
81 | |||
82 | NOTE: this can be called when the regulator is enabled or disabled. If called | ||
83 | when enabled, then the voltage changes instantly, otherwise the voltage | ||
84 | configuration changes and the voltage is physically set when the regulator is | ||
85 | next enabled. | ||
86 | |||
87 | The regulators configured voltage output can be found by calling :- | ||
88 | |||
89 | int regulator_get_voltage(regulator); | ||
90 | |||
91 | NOTE: get_voltage() will return the configured output voltage whether the | ||
92 | regulator is enabled or disabled and should NOT be used to determine regulator | ||
93 | output state. However this can be used in conjunction with is_enabled() to | ||
94 | determine the regulator physical output voltage. | ||
95 | |||
96 | |||
97 | 4. Regulator Current Limit Control & Status (dynamic drivers) | ||
98 | =========================================================== | ||
99 | |||
100 | Some consumer drivers need to be able to dynamically change their supply | ||
101 | current limit to match system operating points. e.g. LCD backlight driver can | ||
102 | change the current limit to vary the backlight brightness, USB drivers may want | ||
103 | to set the limit to 500mA when supplying power. | ||
104 | |||
105 | Consumers can control their supply current limit by calling :- | ||
106 | |||
107 | int regulator_set_current_limit(regulator, min_uV, max_uV); | ||
108 | |||
109 | Where min_uA and max_uA are the minimum and maximum acceptable current limit in | ||
110 | microamps. | ||
111 | |||
112 | NOTE: this can be called when the regulator is enabled or disabled. If called | ||
113 | when enabled, then the current limit changes instantly, otherwise the current | ||
114 | limit configuration changes and the current limit is physically set when the | ||
115 | regulator is next enabled. | ||
116 | |||
117 | A regulators current limit can be found by calling :- | ||
118 | |||
119 | int regulator_get_current_limit(regulator); | ||
120 | |||
121 | NOTE: get_current_limit() will return the current limit whether the regulator | ||
122 | is enabled or disabled and should not be used to determine regulator current | ||
123 | load. | ||
124 | |||
125 | |||
126 | 5. Regulator Operating Mode Control & Status (dynamic drivers) | ||
127 | ============================================================= | ||
128 | |||
129 | Some consumers can further save system power by changing the operating mode of | ||
130 | their supply regulator to be more efficient when the consumers operating state | ||
131 | changes. e.g. consumer driver is idle and subsequently draws less current | ||
132 | |||
133 | Regulator operating mode can be changed indirectly or directly. | ||
134 | |||
135 | Indirect operating mode control. | ||
136 | -------------------------------- | ||
137 | Consumer drivers can request a change in their supply regulator operating mode | ||
138 | by calling :- | ||
139 | |||
140 | int regulator_set_optimum_mode(struct regulator *regulator, int load_uA); | ||
141 | |||
142 | This will cause the core to recalculate the total load on the regulator (based | ||
143 | on all it's consumers) and change operating mode (if necessary and permitted) | ||
144 | to best match the current operating load. | ||
145 | |||
146 | The load_uA value can be determined from the consumers datasheet. e.g.most | ||
147 | datasheets have tables showing the max current consumed in certain situations. | ||
148 | |||
149 | Most consumers will use indirect operating mode control since they have no | ||
150 | knowledge of the regulator or whether the regulator is shared with other | ||
151 | consumers. | ||
152 | |||
153 | Direct operating mode control. | ||
154 | ------------------------------ | ||
155 | Bespoke or tightly coupled drivers may want to directly control regulator | ||
156 | operating mode depending on their operating point. This can be achieved by | ||
157 | calling :- | ||
158 | |||
159 | int regulator_set_mode(struct regulator *regulator, unsigned int mode); | ||
160 | unsigned int regulator_get_mode(struct regulator *regulator); | ||
161 | |||
162 | Direct mode will only be used by consumers that *know* about the regulator and | ||
163 | are not sharing the regulator with other consumers. | ||
164 | |||
165 | |||
166 | 6. Regulator Events | ||
167 | =================== | ||
168 | Regulators can notify consumers of external events. Events could be received by | ||
169 | consumers under regulator stress or failure conditions. | ||
170 | |||
171 | Consumers can register interest in regulator events by calling :- | ||
172 | |||
173 | int regulator_register_notifier(struct regulator *regulator, | ||
174 | struct notifier_block *nb); | ||
175 | |||
176 | Consumers can uregister interest by calling :- | ||
177 | |||
178 | int regulator_unregister_notifier(struct regulator *regulator, | ||
179 | struct notifier_block *nb); | ||
180 | |||
181 | Regulators use the kernel notifier framework to send event to thier interested | ||
182 | consumers. | ||
diff --git a/Documentation/power/regulator/machine.txt b/Documentation/power/regulator/machine.txt new file mode 100644 index 000000000000..c9a35665cf70 --- /dev/null +++ b/Documentation/power/regulator/machine.txt | |||
@@ -0,0 +1,101 @@ | |||
1 | Regulator Machine Driver Interface | ||
2 | =================================== | ||
3 | |||
4 | The regulator machine driver interface is intended for board/machine specific | ||
5 | initialisation code to configure the regulator subsystem. Typical things that | ||
6 | machine drivers would do are :- | ||
7 | |||
8 | 1. Regulator -> Device mapping. | ||
9 | 2. Regulator supply configuration. | ||
10 | 3. Power Domain constraint setting. | ||
11 | |||
12 | |||
13 | |||
14 | 1. Regulator -> device mapping | ||
15 | ============================== | ||
16 | Consider the following machine :- | ||
17 | |||
18 | Regulator-1 -+-> Regulator-2 --> [Consumer A @ 1.8 - 2.0V] | ||
19 | | | ||
20 | +-> [Consumer B @ 3.3V] | ||
21 | |||
22 | The drivers for consumers A & B must be mapped to the correct regulator in | ||
23 | order to control their power supply. This mapping can be achieved in machine | ||
24 | initialisation code by calling :- | ||
25 | |||
26 | int regulator_set_device_supply(const char *regulator, struct device *dev, | ||
27 | const char *supply); | ||
28 | |||
29 | and is shown with the following code :- | ||
30 | |||
31 | regulator_set_device_supply("Regulator-1", devB, "Vcc"); | ||
32 | regulator_set_device_supply("Regulator-2", devA, "Vcc"); | ||
33 | |||
34 | This maps Regulator-1 to the 'Vcc' supply for Consumer B and maps Regulator-2 | ||
35 | to the 'Vcc' supply for Consumer A. | ||
36 | |||
37 | |||
38 | 2. Regulator supply configuration. | ||
39 | ================================== | ||
40 | Consider the following machine (again) :- | ||
41 | |||
42 | Regulator-1 -+-> Regulator-2 --> [Consumer A @ 1.8 - 2.0V] | ||
43 | | | ||
44 | +-> [Consumer B @ 3.3V] | ||
45 | |||
46 | Regulator-1 supplies power to Regulator-2. This relationship must be registered | ||
47 | with the core so that Regulator-1 is also enabled when Consumer A enables it's | ||
48 | supply (Regulator-2). | ||
49 | |||
50 | This relationship can be register with the core via :- | ||
51 | |||
52 | int regulator_set_supply(const char *regulator, const char *regulator_supply); | ||
53 | |||
54 | In this example we would use the following code :- | ||
55 | |||
56 | regulator_set_supply("Regulator-2", "Regulator-1"); | ||
57 | |||
58 | Relationships can be queried by calling :- | ||
59 | |||
60 | const char *regulator_get_supply(const char *regulator); | ||
61 | |||
62 | |||
63 | 3. Power Domain constraint setting. | ||
64 | =================================== | ||
65 | Each power domain within a system has physical constraints on voltage and | ||
66 | current. This must be defined in software so that the power domain is always | ||
67 | operated within specifications. | ||
68 | |||
69 | Consider the following machine (again) :- | ||
70 | |||
71 | Regulator-1 -+-> Regulator-2 --> [Consumer A @ 1.8 - 2.0V] | ||
72 | | | ||
73 | +-> [Consumer B @ 3.3V] | ||
74 | |||
75 | This gives us two regulators and two power domains: | ||
76 | |||
77 | Domain 1: Regulator-2, Consumer B. | ||
78 | Domain 2: Consumer A. | ||
79 | |||
80 | Constraints can be registered by calling :- | ||
81 | |||
82 | int regulator_set_platform_constraints(const char *regulator, | ||
83 | struct regulation_constraints *constraints); | ||
84 | |||
85 | The example is defined as follows :- | ||
86 | |||
87 | struct regulation_constraints domain_1 = { | ||
88 | .min_uV = 3300000, | ||
89 | .max_uV = 3300000, | ||
90 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
91 | }; | ||
92 | |||
93 | struct regulation_constraints domain_2 = { | ||
94 | .min_uV = 1800000, | ||
95 | .max_uV = 2000000, | ||
96 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, | ||
97 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
98 | }; | ||
99 | |||
100 | regulator_set_platform_constraints("Regulator-1", &domain_1); | ||
101 | regulator_set_platform_constraints("Regulator-2", &domain_2); | ||
diff --git a/Documentation/power/regulator/overview.txt b/Documentation/power/regulator/overview.txt new file mode 100644 index 000000000000..bdcb332bd7fb --- /dev/null +++ b/Documentation/power/regulator/overview.txt | |||
@@ -0,0 +1,171 @@ | |||
1 | Linux voltage and current regulator framework | ||
2 | ============================================= | ||
3 | |||
4 | About | ||
5 | ===== | ||
6 | |||
7 | This framework is designed to provide a standard kernel interface to control | ||
8 | voltage and current regulators. | ||
9 | |||
10 | The intention is to allow systems to dynamically control regulator power output | ||
11 | in order to save power and prolong battery life. This applies to both voltage | ||
12 | regulators (where voltage output is controllable) and current sinks (where | ||
13 | current limit is controllable). | ||
14 | |||
15 | (C) 2008 Wolfson Microelectronics PLC. | ||
16 | Author: Liam Girdwood <lg@opensource.wolfsonmicro.com> | ||
17 | |||
18 | |||
19 | Nomenclature | ||
20 | ============ | ||
21 | |||
22 | Some terms used in this document:- | ||
23 | |||
24 | o Regulator - Electronic device that supplies power to other devices. | ||
25 | Most regulators can enable and disable their output whilst | ||
26 | some can control their output voltage and or current. | ||
27 | |||
28 | Input Voltage -> Regulator -> Output Voltage | ||
29 | |||
30 | |||
31 | o PMIC - Power Management IC. An IC that contains numerous regulators | ||
32 | and often contains other susbsystems. | ||
33 | |||
34 | |||
35 | o Consumer - Electronic device that is supplied power by a regulator. | ||
36 | Consumers can be classified into two types:- | ||
37 | |||
38 | Static: consumer does not change it's supply voltage or | ||
39 | current limit. It only needs to enable or disable it's | ||
40 | power supply. It's supply voltage is set by the hardware, | ||
41 | bootloader, firmware or kernel board initialisation code. | ||
42 | |||
43 | Dynamic: consumer needs to change it's supply voltage or | ||
44 | current limit to meet operation demands. | ||
45 | |||
46 | |||
47 | o Power Domain - Electronic circuit that is supplied it's input power by the | ||
48 | output power of a regulator, switch or by another power | ||
49 | domain. | ||
50 | |||
51 | The supply regulator may be behind a switch(s). i.e. | ||
52 | |||
53 | Regulator -+-> Switch-1 -+-> Switch-2 --> [Consumer A] | ||
54 | | | | ||
55 | | +-> [Consumer B], [Consumer C] | ||
56 | | | ||
57 | +-> [Consumer D], [Consumer E] | ||
58 | |||
59 | That is one regulator and three power domains: | ||
60 | |||
61 | Domain 1: Switch-1, Consumers D & E. | ||
62 | Domain 2: Switch-2, Consumers B & C. | ||
63 | Domain 3: Consumer A. | ||
64 | |||
65 | and this represents a "supplies" relationship: | ||
66 | |||
67 | Domain-1 --> Domain-2 --> Domain-3. | ||
68 | |||
69 | A power domain may have regulators that are supplied power | ||
70 | by other regulators. i.e. | ||
71 | |||
72 | Regulator-1 -+-> Regulator-2 -+-> [Consumer A] | ||
73 | | | ||
74 | +-> [Consumer B] | ||
75 | |||
76 | This gives us two regulators and two power domains: | ||
77 | |||
78 | Domain 1: Regulator-2, Consumer B. | ||
79 | Domain 2: Consumer A. | ||
80 | |||
81 | and a "supplies" relationship: | ||
82 | |||
83 | Domain-1 --> Domain-2 | ||
84 | |||
85 | |||
86 | o Constraints - Constraints are used to define power levels for performance | ||
87 | and hardware protection. Constraints exist at three levels: | ||
88 | |||
89 | Regulator Level: This is defined by the regulator hardware | ||
90 | operating parameters and is specified in the regulator | ||
91 | datasheet. i.e. | ||
92 | |||
93 | - voltage output is in the range 800mV -> 3500mV. | ||
94 | - regulator current output limit is 20mA @ 5V but is | ||
95 | 10mA @ 10V. | ||
96 | |||
97 | Power Domain Level: This is defined in software by kernel | ||
98 | level board initialisation code. It is used to constrain a | ||
99 | power domain to a particular power range. i.e. | ||
100 | |||
101 | - Domain-1 voltage is 3300mV | ||
102 | - Domain-2 voltage is 1400mV -> 1600mV | ||
103 | - Domain-3 current limit is 0mA -> 20mA. | ||
104 | |||
105 | Consumer Level: This is defined by consumer drivers | ||
106 | dynamically setting voltage or current limit levels. | ||
107 | |||
108 | e.g. a consumer backlight driver asks for a current increase | ||
109 | from 5mA to 10mA to increase LCD illumination. This passes | ||
110 | to through the levels as follows :- | ||
111 | |||
112 | Consumer: need to increase LCD brightness. Lookup and | ||
113 | request next current mA value in brightness table (the | ||
114 | consumer driver could be used on several different | ||
115 | personalities based upon the same reference device). | ||
116 | |||
117 | Power Domain: is the new current limit within the domain | ||
118 | operating limits for this domain and system state (e.g. | ||
119 | battery power, USB power) | ||
120 | |||
121 | Regulator Domains: is the new current limit within the | ||
122 | regulator operating parameters for input/ouput voltage. | ||
123 | |||
124 | If the regulator request passes all the constraint tests | ||
125 | then the new regulator value is applied. | ||
126 | |||
127 | |||
128 | Design | ||
129 | ====== | ||
130 | |||
131 | The framework is designed and targeted at SoC based devices but may also be | ||
132 | relevant to non SoC devices and is split into the following four interfaces:- | ||
133 | |||
134 | |||
135 | 1. Consumer driver interface. | ||
136 | |||
137 | This uses a similar API to the kernel clock interface in that consumer | ||
138 | drivers can get and put a regulator (like they can with clocks atm) and | ||
139 | get/set voltage, current limit, mode, enable and disable. This should | ||
140 | allow consumers complete control over their supply voltage and current | ||
141 | limit. This also compiles out if not in use so drivers can be reused in | ||
142 | systems with no regulator based power control. | ||
143 | |||
144 | See Documentation/power/regulator/consumer.txt | ||
145 | |||
146 | 2. Regulator driver interface. | ||
147 | |||
148 | This allows regulator drivers to register their regulators and provide | ||
149 | operations to the core. It also has a notifier call chain for propagating | ||
150 | regulator events to clients. | ||
151 | |||
152 | See Documentation/power/regulator/regulator.txt | ||
153 | |||
154 | 3. Machine interface. | ||
155 | |||
156 | This interface is for machine specific code and allows the creation of | ||
157 | voltage/current domains (with constraints) for each regulator. It can | ||
158 | provide regulator constraints that will prevent device damage through | ||
159 | overvoltage or over current caused by buggy client drivers. It also | ||
160 | allows the creation of a regulator tree whereby some regulators are | ||
161 | supplied by others (similar to a clock tree). | ||
162 | |||
163 | See Documentation/power/regulator/machine.txt | ||
164 | |||
165 | 4. Userspace ABI. | ||
166 | |||
167 | The framework also exports a lot of useful voltage/current/opmode data to | ||
168 | userspace via sysfs. This could be used to help monitor device power | ||
169 | consumption and status. | ||
170 | |||
171 | See Documentation/ABI/testing/regulator-sysfs.txt | ||
diff --git a/Documentation/power/regulator/regulator.txt b/Documentation/power/regulator/regulator.txt new file mode 100644 index 000000000000..a69050143592 --- /dev/null +++ b/Documentation/power/regulator/regulator.txt | |||
@@ -0,0 +1,30 @@ | |||
1 | Regulator Driver Interface | ||
2 | ========================== | ||
3 | |||
4 | The regulator driver interface is relatively simple and designed to allow | ||
5 | regulator drivers to register their services with the core framework. | ||
6 | |||
7 | |||
8 | Registration | ||
9 | ============ | ||
10 | |||
11 | Drivers can register a regulator by calling :- | ||
12 | |||
13 | struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc, | ||
14 | void *reg_data); | ||
15 | |||
16 | This will register the regulators capabilities and operations the regulator | ||
17 | core. The core does not touch reg_data (private to regulator driver). | ||
18 | |||
19 | Regulators can be unregistered by calling :- | ||
20 | |||
21 | void regulator_unregister(struct regulator_dev *rdev); | ||
22 | |||
23 | |||
24 | Regulator Events | ||
25 | ================ | ||
26 | Regulators can send events (e.g. over temp, under voltage, etc) to consumer | ||
27 | drivers by calling :- | ||
28 | |||
29 | int regulator_notifier_call_chain(struct regulator_dev *rdev, | ||
30 | unsigned long event, void *data); | ||
diff --git a/Documentation/powerpc/00-INDEX b/Documentation/powerpc/00-INDEX index 3be84aa38dfe..29d839ce7327 100644 --- a/Documentation/powerpc/00-INDEX +++ b/Documentation/powerpc/00-INDEX | |||
@@ -20,8 +20,6 @@ mpc52xx-device-tree-bindings.txt | |||
20 | - MPC5200 Device Tree Bindings | 20 | - MPC5200 Device Tree Bindings |
21 | ppc_htab.txt | 21 | ppc_htab.txt |
22 | - info about the Linux/PPC /proc/ppc_htab entry | 22 | - info about the Linux/PPC /proc/ppc_htab entry |
23 | SBC8260_memory_mapping.txt | ||
24 | - EST SBC8260 board info | ||
25 | smp.txt | 23 | smp.txt |
26 | - use and state info about Linux/PPC on MP machines | 24 | - use and state info about Linux/PPC on MP machines |
27 | sound.txt | 25 | sound.txt |
diff --git a/Documentation/powerpc/SBC8260_memory_mapping.txt b/Documentation/powerpc/SBC8260_memory_mapping.txt deleted file mode 100644 index e6e9ee0506c3..000000000000 --- a/Documentation/powerpc/SBC8260_memory_mapping.txt +++ /dev/null | |||
@@ -1,197 +0,0 @@ | |||
1 | Please mail me (Jon Diekema, diekema_jon@si.com or diekema@cideas.com) | ||
2 | if you have questions, comments or corrections. | ||
3 | |||
4 | * EST SBC8260 Linux memory mapping rules | ||
5 | |||
6 | http://www.estc.com/ | ||
7 | http://www.estc.com/products/boards/SBC8260-8240_ds.html | ||
8 | |||
9 | Initial conditions: | ||
10 | ------------------- | ||
11 | |||
12 | Tasks that need to be perform by the boot ROM before control is | ||
13 | transferred to zImage (compressed Linux kernel): | ||
14 | |||
15 | - Define the IMMR to 0xf0000000 | ||
16 | |||
17 | - Initialize the memory controller so that RAM is available at | ||
18 | physical address 0x00000000. On the SBC8260 is this 16M (64M) | ||
19 | SDRAM. | ||
20 | |||
21 | - The boot ROM should only clear the RAM that it is using. | ||
22 | |||
23 | The reason for doing this is to enhances the chances of a | ||
24 | successful post mortem on a Linux panic. One of the first | ||
25 | items to examine is the 16k (LOG_BUF_LEN) circular console | ||
26 | buffer called log_buf which is defined in kernel/printk.c. | ||
27 | |||
28 | - To enhance boot ROM performance, the I-cache can be enabled. | ||
29 | |||
30 | Date: Mon, 22 May 2000 14:21:10 -0700 | ||
31 | From: Neil Russell <caret@c-side.com> | ||
32 | |||
33 | LiMon (LInux MONitor) runs with and starts Linux with MMU | ||
34 | off, I-cache enabled, D-cache disabled. The I-cache doesn't | ||
35 | need hints from the MMU to work correctly as the D-cache | ||
36 | does. No D-cache means no special code to handle devices in | ||
37 | the presence of cache (no snooping, etc). The use of the | ||
38 | I-cache means that the monitor can run acceptably fast | ||
39 | directly from ROM, rather than having to copy it to RAM. | ||
40 | |||
41 | - Build the board information structure (see | ||
42 | include/asm-ppc/est8260.h for its definition) | ||
43 | |||
44 | - The compressed Linux kernel (zImage) contains a bootstrap loader | ||
45 | that is position independent; you can load it into any RAM, | ||
46 | ROM or FLASH memory address >= 0x00500000 (above 5 MB), or | ||
47 | at its link address of 0x00400000 (4 MB). | ||
48 | |||
49 | Note: If zImage is loaded at its link address of 0x00400000 (4 MB), | ||
50 | then zImage will skip the step of moving itself to | ||
51 | its link address. | ||
52 | |||
53 | - Load R3 with the address of the board information structure | ||
54 | |||
55 | - Transfer control to zImage | ||
56 | |||
57 | - The Linux console port is SMC1, and the baud rate is controlled | ||
58 | from the bi_baudrate field of the board information structure. | ||
59 | On thing to keep in mind when picking the baud rate, is that | ||
60 | there is no flow control on the SMC ports. I would stick | ||
61 | with something safe and standard like 19200. | ||
62 | |||
63 | On the EST SBC8260, the SMC1 port is on the COM1 connector of | ||
64 | the board. | ||
65 | |||
66 | |||
67 | EST SBC8260 defaults: | ||
68 | --------------------- | ||
69 | |||
70 | Chip | ||
71 | Memory Sel Bus Use | ||
72 | --------------------- --- --- ---------------------------------- | ||
73 | 0x00000000-0x03FFFFFF CS2 60x (16M or 64M)/64M SDRAM | ||
74 | 0x04000000-0x04FFFFFF CS4 local 4M/16M SDRAM (soldered to the board) | ||
75 | 0x21000000-0x21000000 CS7 60x 1B/64K Flash present detect (from the flash SIMM) | ||
76 | 0x21000001-0x21000001 CS7 60x 1B/64K Switches (read) and LEDs (write) | ||
77 | 0x22000000-0x2200FFFF CS5 60x 8K/64K EEPROM | ||
78 | 0xFC000000-0xFCFFFFFF CS6 60x 2M/16M flash (8 bits wide, soldered to the board) | ||
79 | 0xFE000000-0xFFFFFFFF CS0 60x 4M/16M flash (SIMM) | ||
80 | |||
81 | Notes: | ||
82 | ------ | ||
83 | |||
84 | - The chip selects can map 32K blocks and up (powers of 2) | ||
85 | |||
86 | - The SDRAM machine can handled up to 128Mbytes per chip select | ||
87 | |||
88 | - Linux uses the 60x bus memory (the SDRAM DIMM) for the | ||
89 | communications buffers. | ||
90 | |||
91 | - BATs can map 128K-256Mbytes each. There are four data BATs and | ||
92 | four instruction BATs. Generally the data and instruction BATs | ||
93 | are mapped the same. | ||
94 | |||
95 | - The IMMR must be set above the kernel virtual memory addresses, | ||
96 | which start at 0xC0000000. Otherwise, the kernel may crash as | ||
97 | soon as you start any threads or processes due to VM collisions | ||
98 | in the kernel or user process space. | ||
99 | |||
100 | |||
101 | Details from Dan Malek <dan_malek@mvista.com> on 10/29/1999: | ||
102 | |||
103 | The user application virtual space consumes the first 2 Gbytes | ||
104 | (0x00000000 to 0x7FFFFFFF). The kernel virtual text starts at | ||
105 | 0xC0000000, with data following. There is a "protection hole" | ||
106 | between the end of kernel data and the start of the kernel | ||
107 | dynamically allocated space, but this space is still within | ||
108 | 0xCxxxxxxx. | ||
109 | |||
110 | Obviously the kernel can't map any physical addresses 1:1 in | ||
111 | these ranges. | ||
112 | |||
113 | |||
114 | Details from Dan Malek <dan_malek@mvista.com> on 5/19/2000: | ||
115 | |||
116 | During the early kernel initialization, the kernel virtual | ||
117 | memory allocator is not operational. Prior to this KVM | ||
118 | initialization, we choose to map virtual to physical addresses | ||
119 | 1:1. That is, the kernel virtual address exactly matches the | ||
120 | physical address on the bus. These mappings are typically done | ||
121 | in arch/ppc/kernel/head.S, or arch/ppc/mm/init.c. Only | ||
122 | absolutely necessary mappings should be done at this time, for | ||
123 | example board control registers or a serial uart. Normal device | ||
124 | driver initialization should map resources later when necessary. | ||
125 | |||
126 | Although platform dependent, and certainly the case for embedded | ||
127 | 8xx, traditionally memory is mapped at physical address zero, | ||
128 | and I/O devices above physical address 0x80000000. The lowest | ||
129 | and highest (above 0xf0000000) I/O addresses are traditionally | ||
130 | used for devices or registers we need to map during kernel | ||
131 | initialization and prior to KVM operation. For this reason, | ||
132 | and since it followed prior PowerPC platform examples, I chose | ||
133 | to map the embedded 8xx kernel to the 0xc0000000 virtual address. | ||
134 | This way, we can enable the MMU to map the kernel for proper | ||
135 | operation, and still map a few windows before the KVM is operational. | ||
136 | |||
137 | On some systems, you could possibly run the kernel at the | ||
138 | 0x80000000 or any other virtual address. It just depends upon | ||
139 | mapping that must be done prior to KVM operational. You can never | ||
140 | map devices or kernel spaces that overlap with the user virtual | ||
141 | space. This is why default IMMR mapping used by most BDM tools | ||
142 | won't work. They put the IMMR at something like 0x10000000 or | ||
143 | 0x02000000 for example. You simply can't map these addresses early | ||
144 | in the kernel, and continue proper system operation. | ||
145 | |||
146 | The embedded 8xx/82xx kernel is mature enough that all you should | ||
147 | need to do is map the IMMR someplace at or above 0xf0000000 and it | ||
148 | should boot far enough to get serial console messages and KGDB | ||
149 | connected on any platform. There are lots of other subtle memory | ||
150 | management design features that you simply don't need to worry | ||
151 | about. If you are changing functions related to MMU initialization, | ||
152 | you are likely breaking things that are known to work and are | ||
153 | heading down a path of disaster and frustration. Your changes | ||
154 | should be to make the flexibility of the processor fit Linux, | ||
155 | not force arbitrary and non-workable memory mappings into Linux. | ||
156 | |||
157 | - You don't want to change KERNELLOAD or KERNELBASE, otherwise the | ||
158 | virtual memory and MMU code will get confused. | ||
159 | |||
160 | arch/ppc/Makefile:KERNELLOAD = 0xc0000000 | ||
161 | |||
162 | include/asm-ppc/page.h:#define PAGE_OFFSET 0xc0000000 | ||
163 | include/asm-ppc/page.h:#define KERNELBASE PAGE_OFFSET | ||
164 | |||
165 | - RAM is at physical address 0x00000000, and gets mapped to | ||
166 | virtual address 0xC0000000 for the kernel. | ||
167 | |||
168 | |||
169 | Physical addresses used by the Linux kernel: | ||
170 | -------------------------------------------- | ||
171 | |||
172 | 0x00000000-0x3FFFFFFF 1GB reserved for RAM | ||
173 | 0xF0000000-0xF001FFFF 128K IMMR 64K used for dual port memory, | ||
174 | 64K for 8260 registers | ||
175 | |||
176 | |||
177 | Logical addresses used by the Linux kernel: | ||
178 | ------------------------------------------- | ||
179 | |||
180 | 0xF0000000-0xFFFFFFFF 256M BAT0 (IMMR: dual port RAM, registers) | ||
181 | 0xE0000000-0xEFFFFFFF 256M BAT1 (I/O space for custom boards) | ||
182 | 0xC0000000-0xCFFFFFFF 256M BAT2 (RAM) | ||
183 | 0xD0000000-0xDFFFFFFF 256M BAT3 (if RAM > 256MByte) | ||
184 | |||
185 | |||
186 | EST SBC8260 Linux mapping: | ||
187 | -------------------------- | ||
188 | |||
189 | DBAT0, IBAT0, cache inhibited: | ||
190 | |||
191 | Chip | ||
192 | Memory Sel Use | ||
193 | --------------------- --- --------------------------------- | ||
194 | 0xF0000000-0xF001FFFF n/a IMMR: dual port RAM, registers | ||
195 | |||
196 | DBAT1, IBAT1, cache inhibited: | ||
197 | |||
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index 928a79ceb7aa..de4063cb4fdc 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt | |||
@@ -278,7 +278,7 @@ it with special cases. | |||
278 | a 64-bit platform. | 278 | a 64-bit platform. |
279 | 279 | ||
280 | d) request and get assigned a platform number (see PLATFORM_* | 280 | d) request and get assigned a platform number (see PLATFORM_* |
281 | constants in include/asm-powerpc/processor.h | 281 | constants in arch/powerpc/include/asm/processor.h |
282 | 282 | ||
283 | 32-bit embedded kernels: | 283 | 32-bit embedded kernels: |
284 | 284 | ||
@@ -340,7 +340,7 @@ the block to RAM before passing it to the kernel. | |||
340 | --------- | 340 | --------- |
341 | 341 | ||
342 | The kernel is entered with r3 pointing to an area of memory that is | 342 | The kernel is entered with r3 pointing to an area of memory that is |
343 | roughly described in include/asm-powerpc/prom.h by the structure | 343 | roughly described in arch/powerpc/include/asm/prom.h by the structure |
344 | boot_param_header: | 344 | boot_param_header: |
345 | 345 | ||
346 | struct boot_param_header { | 346 | struct boot_param_header { |
diff --git a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt b/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt index b35f3482e3e4..2ea76d9d137c 100644 --- a/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt +++ b/Documentation/powerpc/dts-bindings/fsl/cpm_qe/serial.txt | |||
@@ -7,6 +7,15 @@ Currently defined compatibles: | |||
7 | - fsl,cpm2-scc-uart | 7 | - fsl,cpm2-scc-uart |
8 | - fsl,qe-uart | 8 | - fsl,qe-uart |
9 | 9 | ||
10 | Modem control lines connected to GPIO controllers are listed in the gpios | ||
11 | property as described in booting-without-of.txt, section IX.1 in the following | ||
12 | order: | ||
13 | |||
14 | CTS, RTS, DCD, DSR, DTR, and RI. | ||
15 | |||
16 | The gpios property is optional and can be left out when control lines are | ||
17 | not used. | ||
18 | |||
10 | Example: | 19 | Example: |
11 | 20 | ||
12 | serial@11a00 { | 21 | serial@11a00 { |
@@ -18,4 +27,6 @@ Example: | |||
18 | interrupt-parent = <&PIC>; | 27 | interrupt-parent = <&PIC>; |
19 | fsl,cpm-brg = <1>; | 28 | fsl,cpm-brg = <1>; |
20 | fsl,cpm-command = <00800000>; | 29 | fsl,cpm-command = <00800000>; |
30 | gpios = <&gpio_c 15 0 | ||
31 | &gpio_d 29 0>; | ||
21 | }; | 32 | }; |
diff --git a/Documentation/powerpc/eeh-pci-error-recovery.txt b/Documentation/powerpc/eeh-pci-error-recovery.txt index df7afe43d462..9d4e33df624c 100644 --- a/Documentation/powerpc/eeh-pci-error-recovery.txt +++ b/Documentation/powerpc/eeh-pci-error-recovery.txt | |||
@@ -133,7 +133,7 @@ error. Given an arbitrary address, the routine | |||
133 | pci_get_device_by_addr() will find the pci device associated | 133 | pci_get_device_by_addr() will find the pci device associated |
134 | with that address (if any). | 134 | with that address (if any). |
135 | 135 | ||
136 | The default include/asm-powerpc/io.h macros readb(), inb(), insb(), | 136 | The default arch/powerpc/include/asm/io.h macros readb(), inb(), insb(), |
137 | etc. include a check to see if the i/o read returned all-0xff's. | 137 | etc. include a check to see if the i/o read returned all-0xff's. |
138 | If so, these make a call to eeh_dn_check_failure(), which in turn | 138 | If so, these make a call to eeh_dn_check_failure(), which in turn |
139 | asks the firmware if the all-ff's value is the sign of a true EEH | 139 | asks the firmware if the all-ff's value is the sign of a true EEH |
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt index 0843ed0163a5..28b6ec87c642 100644 --- a/Documentation/rfkill.txt +++ b/Documentation/rfkill.txt | |||
@@ -390,9 +390,10 @@ rfkill lines are inactive, it must return RFKILL_STATE_SOFT_BLOCKED if its soft | |||
390 | rfkill input line is active. Only if none of the rfkill input lines are | 390 | rfkill input line is active. Only if none of the rfkill input lines are |
391 | active, will it return RFKILL_STATE_UNBLOCKED. | 391 | active, will it return RFKILL_STATE_UNBLOCKED. |
392 | 392 | ||
393 | If it doesn't implement the get_state() hook, it must make sure that its calls | 393 | Since the device has a hardware rfkill line, it IS subject to state changes |
394 | to rfkill_force_state() are enough to keep the status always up-to-date, and it | 394 | external to rfkill. Therefore, the driver must make sure that it calls |
395 | must do a rfkill_force_state() on resume from sleep. | 395 | rfkill_force_state() to keep the status always up-to-date, and it must do a |
396 | rfkill_force_state() on resume from sleep. | ||
396 | 397 | ||
397 | Every time the driver gets a notification from the card that one of its rfkill | 398 | Every time the driver gets a notification from the card that one of its rfkill |
398 | lines changed state (polling might be needed on badly designed cards that don't | 399 | lines changed state (polling might be needed on badly designed cards that don't |
@@ -422,13 +423,24 @@ of the hardware is unknown), or read-write (where the hardware can be queried | |||
422 | about its current state). | 423 | about its current state). |
423 | 424 | ||
424 | The rfkill class will call the get_state hook of a device every time it needs | 425 | The rfkill class will call the get_state hook of a device every time it needs |
425 | to know the *real* current state of the hardware. This can happen often. | 426 | to know the *real* current state of the hardware. This can happen often, but |
427 | it does not do any polling, so it is not enough on hardware that is subject | ||
428 | to state changes outside of the rfkill subsystem. | ||
429 | |||
430 | Therefore, calling rfkill_force_state() when a state change happens is | ||
431 | mandatory when the device has a hardware rfkill line, or when something else | ||
432 | like the firmware could cause its state to be changed without going through the | ||
433 | rfkill class. | ||
426 | 434 | ||
427 | Some hardware provides events when its status changes. In these cases, it is | 435 | Some hardware provides events when its status changes. In these cases, it is |
428 | best for the driver to not provide a get_state hook, and instead register the | 436 | best for the driver to not provide a get_state hook, and instead register the |
429 | rfkill class *already* with the correct status, and keep it updated using | 437 | rfkill class *already* with the correct status, and keep it updated using |
430 | rfkill_force_state() when it gets an event from the hardware. | 438 | rfkill_force_state() when it gets an event from the hardware. |
431 | 439 | ||
440 | rfkill_force_state() must be used on the device resume handlers to update the | ||
441 | rfkill status, should there be any chance of the device status changing during | ||
442 | the sleep. | ||
443 | |||
432 | There is no provision for a statically-allocated rfkill struct. You must | 444 | There is no provision for a statically-allocated rfkill struct. You must |
433 | use rfkill_allocate() to allocate one. | 445 | use rfkill_allocate() to allocate one. |
434 | 446 | ||
diff --git a/Documentation/spi/Makefile b/Documentation/spi/Makefile new file mode 100644 index 000000000000..a5b03c88beae --- /dev/null +++ b/Documentation/spi/Makefile | |||
@@ -0,0 +1,11 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := spidev_test spidev_fdx | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||
9 | |||
10 | HOSTCFLAGS_spidev_test.o += -I$(objtree)/usr/include | ||
11 | HOSTCFLAGS_spidev_fdx.o += -I$(objtree)/usr/include | ||
diff --git a/Documentation/spi/pxa2xx b/Documentation/spi/pxa2xx index f3853cc37bde..bbe8dee681a5 100644 --- a/Documentation/spi/pxa2xx +++ b/Documentation/spi/pxa2xx | |||
@@ -19,7 +19,7 @@ Declaring PXA2xx Master Controllers | |||
19 | ----------------------------------- | 19 | ----------------------------------- |
20 | Typically a SPI master is defined in the arch/.../mach-*/board-*.c as a | 20 | Typically a SPI master is defined in the arch/.../mach-*/board-*.c as a |
21 | "platform device". The master configuration is passed to the driver via a table | 21 | "platform device". The master configuration is passed to the driver via a table |
22 | found in include/asm-arm/arch-pxa/pxa2xx_spi.h: | 22 | found in arch/arm/mach-pxa/include/mach/pxa2xx_spi.h: |
23 | 23 | ||
24 | struct pxa2xx_spi_master { | 24 | struct pxa2xx_spi_master { |
25 | enum pxa_ssp_type ssp_type; | 25 | enum pxa_ssp_type ssp_type; |
@@ -94,7 +94,7 @@ using the "spi_board_info" structure found in "linux/spi/spi.h". See | |||
94 | 94 | ||
95 | Each slave device attached to the PXA must provide slave specific configuration | 95 | Each slave device attached to the PXA must provide slave specific configuration |
96 | information via the structure "pxa2xx_spi_chip" found in | 96 | information via the structure "pxa2xx_spi_chip" found in |
97 | "include/asm-arm/arch-pxa/pxa2xx_spi.h". The pxa2xx_spi master controller driver | 97 | "arch/arm/mach-pxa/include/mach/pxa2xx_spi.h". The pxa2xx_spi master controller driver |
98 | will uses the configuration whenever the driver communicates with the slave | 98 | will uses the configuration whenever the driver communicates with the slave |
99 | device. | 99 | device. |
100 | 100 | ||
diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary index 6d5f18143c50..8bae2f018d34 100644 --- a/Documentation/spi/spi-summary +++ b/Documentation/spi/spi-summary | |||
@@ -210,7 +210,7 @@ board should normally be set up and registered. | |||
210 | 210 | ||
211 | So for example arch/.../mach-*/board-*.c files might have code like: | 211 | So for example arch/.../mach-*/board-*.c files might have code like: |
212 | 212 | ||
213 | #include <asm/arch/spi.h> /* for mysoc_spi_data */ | 213 | #include <mach/spi.h> /* for mysoc_spi_data */ |
214 | 214 | ||
215 | /* if your mach-* infrastructure doesn't support kernels that can | 215 | /* if your mach-* infrastructure doesn't support kernels that can |
216 | * run on multiple boards, pdata wouldn't benefit from "__init". | 216 | * run on multiple boards, pdata wouldn't benefit from "__init". |
@@ -227,7 +227,7 @@ So for example arch/.../mach-*/board-*.c files might have code like: | |||
227 | 227 | ||
228 | And SOC-specific utility code might look something like: | 228 | And SOC-specific utility code might look something like: |
229 | 229 | ||
230 | #include <asm/arch/spi.h> | 230 | #include <mach/spi.h> |
231 | 231 | ||
232 | static struct platform_device spi2 = { ... }; | 232 | static struct platform_device spi2 = { ... }; |
233 | 233 | ||
diff --git a/Documentation/usb/auerswald.txt b/Documentation/usb/auerswald.txt deleted file mode 100644 index 7ee4d8f69116..000000000000 --- a/Documentation/usb/auerswald.txt +++ /dev/null | |||
@@ -1,30 +0,0 @@ | |||
1 | Auerswald USB kernel driver | ||
2 | =========================== | ||
3 | |||
4 | What is it? What can I do with it? | ||
5 | ================================== | ||
6 | The auerswald USB kernel driver connects your linux 2.4.x | ||
7 | system to the auerswald usb-enabled devices. | ||
8 | |||
9 | There are two types of auerswald usb devices: | ||
10 | a) small PBX systems (ISDN) | ||
11 | b) COMfort system telephones (ISDN) | ||
12 | |||
13 | The driver installation creates the devices | ||
14 | /dev/usb/auer0..15. These devices carry a vendor- | ||
15 | specific protocol. You may run all auerswald java | ||
16 | software on it. The java software needs a native | ||
17 | library "libAuerUsbJNINative.so" installed on | ||
18 | your system. This library is available from | ||
19 | auerswald and shipped as part of the java software. | ||
20 | |||
21 | You may create the devices with: | ||
22 | mknod -m 666 /dev/usb/auer0 c 180 112 | ||
23 | ... | ||
24 | mknod -m 666 /dev/usb/auer15 c 180 127 | ||
25 | |||
26 | Future plans | ||
27 | ============ | ||
28 | - Connection to ISDN4LINUX (the hisax interface) | ||
29 | |||
30 | The maintainer of this driver is wolfgang@iksw-muees.de | ||
diff --git a/Documentation/usb/power-management.txt b/Documentation/usb/power-management.txt index b2fc4d4a9917..9d31140e3f5b 100644 --- a/Documentation/usb/power-management.txt +++ b/Documentation/usb/power-management.txt | |||
@@ -436,7 +436,12 @@ post_reset; the USB core guarantees that this is true of internal | |||
436 | suspend/resume events as well. | 436 | suspend/resume events as well. |
437 | 437 | ||
438 | If a driver wants to block all suspend/resume calls during some | 438 | If a driver wants to block all suspend/resume calls during some |
439 | critical section, it can simply acquire udev->pm_mutex. | 439 | critical section, it can simply acquire udev->pm_mutex. Note that |
440 | calls to resume may be triggered indirectly. Block IO due to memory | ||
441 | allocations can make the vm subsystem resume a device. Thus while | ||
442 | holding this lock you must not allocate memory with GFP_KERNEL or | ||
443 | GFP_NOFS. | ||
444 | |||
440 | Alternatively, if the critical section might call some of the | 445 | Alternatively, if the critical section might call some of the |
441 | usb_autopm_* routines, the driver can avoid deadlock by doing: | 446 | usb_autopm_* routines, the driver can avoid deadlock by doing: |
442 | 447 | ||
diff --git a/Documentation/video4linux/Makefile b/Documentation/video4linux/Makefile new file mode 100644 index 000000000000..1ed0e98d057d --- /dev/null +++ b/Documentation/video4linux/Makefile | |||
@@ -0,0 +1,8 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := v4lgrab | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||
diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt index bcaf4ab383be..78a863ab8a5a 100644 --- a/Documentation/video4linux/gspca.txt +++ b/Documentation/video4linux/gspca.txt | |||
@@ -226,6 +226,7 @@ sonixj 0c45:6130 Sonix Pccam | |||
226 | sonixj 0c45:6138 Sn9c120 Mo4000 | 226 | sonixj 0c45:6138 Sn9c120 Mo4000 |
227 | sonixj 0c45:613b Surfer SN-206 | 227 | sonixj 0c45:613b Surfer SN-206 |
228 | sonixj 0c45:613c Sonix Pccam168 | 228 | sonixj 0c45:613c Sonix Pccam168 |
229 | sonixj 0c45:6143 Sonix Pccam168 | ||
229 | sunplus 0d64:0303 Sunplus FashionCam DXG | 230 | sunplus 0d64:0303 Sunplus FashionCam DXG |
230 | etoms 102c:6151 Qcam Sangha CIF | 231 | etoms 102c:6151 Qcam Sangha CIF |
231 | etoms 102c:6251 Qcam xxxxxx VGA | 232 | etoms 102c:6251 Qcam xxxxxx VGA |
diff --git a/Documentation/vm/Makefile b/Documentation/vm/Makefile new file mode 100644 index 000000000000..6f562f778b28 --- /dev/null +++ b/Documentation/vm/Makefile | |||
@@ -0,0 +1,8 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := slabinfo | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||
diff --git a/Documentation/watchdog/src/Makefile b/Documentation/watchdog/src/Makefile new file mode 100644 index 000000000000..40e5f46e4740 --- /dev/null +++ b/Documentation/watchdog/src/Makefile | |||
@@ -0,0 +1,8 @@ | |||
1 | # kbuild trick to avoid linker error. Can be omitted if a module is built. | ||
2 | obj- := dummy.o | ||
3 | |||
4 | # List of programs to build | ||
5 | hostprogs-y := watchdog-simple watchdog-test | ||
6 | |||
7 | # Tell kbuild to always build the programs | ||
8 | always := $(hostprogs-y) | ||