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r: 208726
b: refs/heads/master
c: ff7124a
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v: v3
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Atul Dahiya authored and Kukjin Kim committed Aug 5, 2010
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 500b9fc922cbec572f4fd1436533bfaed5011262
refs/heads/master: ff7124a38f2663088b7404ddf30cd1016604dceb
20 changes: 0 additions & 20 deletions trunk/Documentation/ABI/testing/debugfs-ec
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6 changes: 3 additions & 3 deletions trunk/Documentation/ABI/testing/sysfs-devices-memory
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Expand Up @@ -7,7 +7,7 @@ Description:
added or removed dynamically to represent hot-add/remove
operations.
Users: hotplug memory add/remove tools
http://www.ibm.com/developerworks/wikis/display/LinuxP/powerpc-utils
https://w3.opensource.ibm.com/projects/powerpc-utils/

What: /sys/devices/system/memory/memoryX/removable
Date: June 2008
Expand All @@ -19,7 +19,7 @@ Description:
identify removable sections of the memory before attempting
potentially expensive hot-remove memory operation
Users: hotplug memory remove tools
http://www.ibm.com/developerworks/wikis/display/LinuxP/powerpc-utils
https://w3.opensource.ibm.com/projects/powerpc-utils/

What: /sys/devices/system/memory/memoryX/phys_device
Date: September 2008
Expand Down Expand Up @@ -58,7 +58,7 @@ Description:
by root to offline that section.
# echo offline > /sys/devices/system/memory/memory22/state
Users: hotplug memory remove tools
http://www.ibm.com/developerworks/wikis/display/LinuxP/powerpc-utils
https://w3.opensource.ibm.com/projects/powerpc-utils/


What: /sys/devices/system/memoryX/nodeY
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2 changes: 1 addition & 1 deletion trunk/Documentation/ABI/testing/sysfs-devices-system-cpu
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Expand Up @@ -197,7 +197,7 @@ Description: These files exist in every cpu's cache index directories.
Currently, only AMD Family 10h Processors support cache index
disable, and only for their L3 caches. See the BIOS and
Kernel Developer's Guide at
http://support.amd.com/us/Embedded_TechDocs/31116-Public-GH-BKDG_3-28_5-28-09.pdf
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31116-Public-GH-BKDG_3.20_2-4-09.pdf
for formatting information and other details on the
cache index disable.
Users: joachim.deguara@amd.com
13 changes: 13 additions & 0 deletions trunk/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone
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Expand Up @@ -33,6 +33,19 @@ Description: When read, this file returns the raw integer version number of the
left. E.g. a returned value of 138 means 1.38
This file is readonly.

What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/kone_driver_version
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When read, this file returns the driver version.
The format of the string is "v<major>.<minor>.<patchlevel>".
This attribute is used by the userland tools to find the sysfs-
paths of installed kone-mice and determine the capabilites of
the driver. Versions of this driver for old kernels replace
usbhid instead of generic-usb. The way to scan for this file
has been chosen to provide a consistent way for all supported
kernel versions.
This file is readonly.

What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/profile[1-5]
Date: March 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
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15 changes: 0 additions & 15 deletions trunk/Documentation/ABI/testing/sysfs-power
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Expand Up @@ -114,18 +114,3 @@ Description:
if this file contains "1", which is the default. It may be
disabled by writing "0" to this file, in which case all devices
will be suspended and resumed synchronously.

What: /sys/power/wakeup_count
Date: July 2010
Contact: Rafael J. Wysocki <rjw@sisk.pl>
Description:
The /sys/power/wakeup_count file allows user space to put the
system into a sleep state while taking into account the
concurrent arrival of wakeup events. Reading from it returns
the current number of registered wakeup events and it blocks if
some wakeup events are being processed at the time the file is
read from. Writing to it will only succeed if the current
number of wakeup events is equal to the written value and, if
successful, will make the kernel abort a subsequent transition
to a sleep state if any wakeup events are reported after the
write has returned.
12 changes: 6 additions & 6 deletions trunk/Documentation/Changes
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Expand Up @@ -331,7 +331,7 @@ o <ftp://ftp.kernel.org/pub/linux/kernel/people/rusty/modules/>

Mkinitrd
--------
o <https://code.launchpad.net/initrd-tools/main>
o <ftp://rawhide.redhat.com/pub/rawhide/SRPMS/SRPMS/>

E2fsprogs
---------
Expand All @@ -343,11 +343,11 @@ o <http://jfs.sourceforge.net/>

Reiserfsprogs
-------------
o <http://www.kernel.org/pub/linux/utils/fs/reiserfs/>
o <http://www.namesys.com/pub/reiserfsprogs/reiserfsprogs-3.6.3.tar.gz>

Xfsprogs
--------
o <ftp://oss.sgi.com/projects/xfs/>
o <ftp://oss.sgi.com/projects/xfs/download/>

Pcmciautils
-----------
Expand Down Expand Up @@ -387,18 +387,18 @@ o <http://sourceforge.net/projects/fuse>

mcelog
------
o <ftp://ftp.kernel.org/pub/linux/utils/cpu/mce/>
o <ftp://ftp.kernel.org/pub/linux/utils/cpu/mce/mcelog/>

Networking
**********

PPP
---
o <ftp://ftp.samba.org/pub/ppp/>
o <ftp://ftp.samba.org/pub/ppp/ppp-2.4.0.tar.gz>

Isdn4k-utils
------------
o <ftp://ftp.isdn4linux.de/pub/isdn4linux/utils/>
o <ftp://ftp.isdn4linux.de/pub/isdn4linux/utils/isdn4k-utils.v3.1pre1.tar.gz>

NFS-utils
---------
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19 changes: 3 additions & 16 deletions trunk/Documentation/DocBook/dvb/dvbapi.xml
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Expand Up @@ -12,36 +12,23 @@
<othername role="mi">O. C.</othername>
<affiliation><address><email>rjkm@metzlerbros.de</email></address></affiliation>
</author>
</authorgroup>
<authorgroup>
<author>
<firstname>Mauro</firstname>
<othername role="mi">Carvalho</othername>
<surname>Chehab</surname>
<othername role="mi">Carvalho</othername>
<affiliation><address><email>mchehab@redhat.com</email></address></affiliation>
<contrib>Ported document to Docbook XML.</contrib>
</author>
</authorgroup>
<copyright>
<year>2002</year>
<year>2003</year>
<year>2009</year>
<holder>Convergence GmbH</holder>
</copyright>
<copyright>
<year>2009-2010</year>
<holder>Mauro Carvalho Chehab</holder>
</copyright>

<revhistory>
<!-- Put document revisions here, newest first. -->
<revision>
<revnumber>2.0.3</revnumber>
<date>2010-07-03</date>
<authorinitials>mcc</authorinitials>
<revremark>
Add some frontend capabilities flags, present on kernel, but missing at the specs.
</revremark>
</revision>
<revision>
<revnumber>2.0.2</revnumber>
<date>2009-10-25</date>
Expand Down Expand Up @@ -76,7 +63,7 @@ Added ISDB-T test originally written by Patrick Boettcher


<title>LINUX DVB API</title>
<subtitle>Version 5.2</subtitle>
<subtitle>Version 3</subtitle>
<!-- ADD THE CHAPTERS HERE -->
<chapter id="dvb_introdution">
&sub-intro;
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1 change: 0 additions & 1 deletion trunk/Documentation/DocBook/dvb/frontend.h.xml
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Expand Up @@ -63,7 +63,6 @@ typedef enum fe_caps {
FE_CAN_8VSB = 0x200000,
FE_CAN_16VSB = 0x400000,
FE_HAS_EXTENDED_CAPS = 0x800000, /* We need more bitspace for newer APIs, indicate this. */
FE_CAN_TURBO_FEC = 0x8000000, /* frontend supports "turbo fec modulation" */
FE_CAN_2G_MODULATION = 0x10000000, /* frontend supports "2nd generation modulation" (DVB-S2) */
FE_NEEDS_BENDING = 0x20000000, /* not supported anymore, don't use (frontend requires frequency bending) */
FE_CAN_RECOVER = 0x40000000, /* frontend can recover from a cable unplug automatically */
Expand Down
10 changes: 2 additions & 8 deletions trunk/Documentation/DocBook/dvb/frontend.xml
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Expand Up @@ -64,14 +64,8 @@ a specific frontend type.</para>
FE_CAN_BANDWIDTH_AUTO = 0x40000,
FE_CAN_GUARD_INTERVAL_AUTO = 0x80000,
FE_CAN_HIERARCHY_AUTO = 0x100000,
FE_CAN_8VSB = 0x200000,
FE_CAN_16VSB = 0x400000,
FE_HAS_EXTENDED_CAPS = 0x800000,
FE_CAN_TURBO_FEC = 0x8000000,
FE_CAN_2G_MODULATION = 0x10000000,
FE_NEEDS_BENDING = 0x20000000,
FE_CAN_RECOVER = 0x40000000,
FE_CAN_MUTE_TS = 0x80000000
FE_CAN_MUTE_TS = 0x80000000,
FE_CAN_CLEAN_SETUP = 0x40000000
} fe_caps_t;
</programlisting>
</section>
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108 changes: 8 additions & 100 deletions trunk/Documentation/DocBook/kgdb.tmpl
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Expand Up @@ -199,33 +199,10 @@
may be configured as a kernel built-in or a kernel loadable module.
You can only make use of <constant>kgdbwait</constant> and early
debugging if you build kgdboc into the kernel as a built-in.
<para>Optionally you can elect to activate kms (Kernel Mode
Setting) integration. When you use kms with kgdboc and you have a
video driver that has atomic mode setting hooks, it is possible to
enter the debugger on the graphics console. When the kernel
execution is resumed, the previous graphics mode will be restored.
This integration can serve as a useful tool to aid in diagnosing
crashes or doing analysis of memory with kdb while allowing the
full graphics console applications to run.
</para>
</para>
<sect2 id="kgdbocArgs">
<title>kgdboc arguments</title>
<para>Usage: <constant>kgdboc=[kms][[,]kbd][[,]serial_device][,baud]</constant></para>
<para>The order listed above must be observed if you use any of the
optional configurations together.
</para>
<para>Abbreviations:
<itemizedlist>
<listitem><para>kms = Kernel Mode Setting</para></listitem>
<listitem><para>kbd = Keyboard</para></listitem>
</itemizedlist>
</para>
<para>You can configure kgdboc to use the keyboard, and or a serial
device depending on if you are using kdb and or kgdb, in one of the
following scenarios. The order listed above must be observed if
you use any of the optional configurations together. Using kms +
only gdb is generally not a useful combination.</para>
<para>Usage: <constant>kgdboc=[kbd][[,]serial_device][,baud]</constant></para>
<sect3 id="kgdbocArgs1">
<title>Using loadable module or built-in</title>
<para>
Expand All @@ -235,7 +212,7 @@
<listitem>
<para>As a kernel loadable module:</para>
<para>Use the command: <constant>modprobe kgdboc kgdboc=&lt;tty-device&gt;,[baud]</constant></para>
<para>Here are two examples of how you might format the kgdboc
<para>Here are two examples of how you might formate the kgdboc
string. The first is for an x86 target using the first serial port.
The second example is for the ARM Versatile AB using the second
serial port.
Expand Down Expand Up @@ -263,9 +240,6 @@
</sect3>
<sect3 id="kgdbocArgs3">
<title>More examples</title>
<para>You can configure kgdboc to use the keyboard, and or a serial
device depending on if you are using kdb and or kgdb, in one of the
following scenarios.</para>
<para>You can configure kgdboc to use the keyboard, and or a serial device
depending on if you are using kdb and or kgdb, in one of the
following scenarios.
Expand All @@ -281,12 +255,6 @@
<listitem><para>kdb with a keyboard</para>
<para><constant>kgdboc=kbd</constant></para>
</listitem>
<listitem><para>kdb with kernel mode setting</para>
<para><constant>kgdboc=kms,kbd</constant></para>
</listitem>
<listitem><para>kdb with kernel mode setting and kgdb over a serial port</para>
<para><constant>kgdboc=kms,kbd,ttyS0,115200</constant></para>
</listitem>
</orderedlist>
</para>
</sect3>
Expand Down Expand Up @@ -669,8 +637,6 @@ Task Addr Pid Parent [*] cpu State Thread Command
<listitem><para>The logic to perform safe memory reads and writes to memory while using the debugger</para></listitem>
<listitem><para>A full implementation for software breakpoints unless overridden by the arch</para></listitem>
<listitem><para>The API to invoke either the kdb or kgdb frontend to the debug core.</para></listitem>
<listitem><para>The structures and callback API for atomic kernel mode setting.</para>
<para>NOTE: kgdboc is where the kms callbacks are invoked.</para></listitem>
</itemizedlist>
</para>
</listitem>
Expand Down Expand Up @@ -781,17 +747,18 @@ Task Addr Pid Parent [*] cpu State Thread Command
</sect1>
<sect1 id="kgdbocDesign">
<title>kgdboc internals</title>
<sect2>
<title>kgdboc and uarts</title>
<para>
The kgdboc driver is actually a very thin driver that relies on the
underlying low level to the hardware driver having "polling hooks"
which the to which the tty driver is attached. In the initial
implementation of kgdboc it the serial_core was changed to expose a
low level UART hook for doing polled mode reading and writing of a
single character while in an atomic context. When kgdb makes an I/O
request to the debugger, kgdboc invokes a callback in the serial
core which in turn uses the callback in the UART driver.</para>
request to the debugger, kgdboc invokes a call back in the serial
core which in turn uses the call back in the UART driver. It is
certainly possible to extend kgdboc to work with non-UART based
consoles in the future.
</para>
<para>
When using kgdboc with a UART, the UART driver must implement two callbacks in the <constant>struct uart_ops</constant>. Example from drivers/8250.c:<programlisting>
#ifdef CONFIG_CONSOLE_POLL
Expand All @@ -805,68 +772,9 @@ Task Addr Pid Parent [*] cpu State Thread Command
that they can be called from an atomic context and have to restore
the state of the UART chip on return such that the system can return
to normal when the debugger detaches. You need to be very careful
with any kind of lock you consider, because failing here is most likely
with any kind of lock you consider, because failing here is most
going to mean pressing the reset button.
</para>
</sect2>
<sect2 id="kgdbocKbd">
<title>kgdboc and keyboards</title>
<para>The kgdboc driver contains logic to configure communications
with an attached keyboard. The keyboard infrastructure is only
compiled into the kernel when CONFIG_KDB_KEYBOARD=y is set in the
kernel configuration.</para>
<para>The core polled keyboard driver driver for PS/2 type keyboards
is in drivers/char/kdb_keyboard.c. This driver is hooked into the
debug core when kgdboc populates the callback in the array
called <constant>kdb_poll_funcs[]</constant>. The
kdb_get_kbd_char() is the top-level function which polls hardware
for single character input.
</para>
</sect2>
<sect2 id="kgdbocKms">
<title>kgdboc and kms</title>
<para>The kgdboc driver contains logic to request the graphics
display to switch to a text context when you are using
"kgdboc=kms,kbd", provided that you have a video driver which has a
frame buffer console and atomic kernel mode setting support.</para>
<para>
Every time the kernel
debugger is entered it calls kgdboc_pre_exp_handler() which in turn
calls con_debug_enter() in the virtual console layer. On resuming kernel
execution, the kernel debugger calls kgdboc_post_exp_handler() which
in turn calls con_debug_leave().</para>
<para>Any video driver that wants to be compatible with the kernel
debugger and the atomic kms callbacks must implement the
mode_set_base_atomic, fb_debug_enter and fb_debug_leave operations.
For the fb_debug_enter and fb_debug_leave the option exists to use
the generic drm fb helper functions or implement something custom for
the hardware. The following example shows the initialization of the
.mode_set_base_atomic operation in
drivers/gpu/drm/i915/intel_display.c:
<informalexample>
<programlisting>
static const struct drm_crtc_helper_funcs intel_helper_funcs = {
[...]
.mode_set_base_atomic = intel_pipe_set_base_atomic,
[...]
};
</programlisting>
</informalexample>
</para>
<para>Here is an example of how the i915 driver initializes the fb_debug_enter and fb_debug_leave functions to use the generic drm helpers in
drivers/gpu/drm/i915/intel_fb.c:
<informalexample>
<programlisting>
static struct fb_ops intelfb_ops = {
[...]
.fb_debug_enter = drm_fb_helper_debug_enter,
.fb_debug_leave = drm_fb_helper_debug_leave,
[...]
};
</programlisting>
</informalexample>
</para>
</sect2>
</sect1>
</chapter>
<chapter id="credits">
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Expand Up @@ -218,7 +218,6 @@
<!ENTITY sub-dev-teletext SYSTEM "v4l/dev-teletext.xml">
<!ENTITY sub-driver SYSTEM "v4l/driver.xml">
<!ENTITY sub-libv4l SYSTEM "v4l/libv4l.xml">
<!ENTITY sub-lirc_device_interface SYSTEM "v4l/lirc_device_interface.xml">
<!ENTITY sub-remote_controllers SYSTEM "v4l/remote_controllers.xml">
<!ENTITY sub-fdl-appendix SYSTEM "v4l/fdl-appendix.xml">
<!ENTITY sub-close SYSTEM "v4l/func-close.xml">
Expand Down
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