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Merge branch 'tip/tracing/urgent' of... 

Merge branch 'tip/tracing/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent
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Documentation/ABI/testing/sysfs-block
浏览文件 @ e02c4fd3
......@@ -128,3 +128,17 @@ Description:
preferred request size for workloads where sustained
throughput is desired. If no optimal I/O size is
reported this file contains 0.
What: /sys/block/<disk>/queue/nomerges
Date: January 2010
Contact:
Description:
Standard I/O elevator operations include attempts to
merge contiguous I/Os. For known random I/O loads these
attempts will always fail and result in extra cycles
being spent in the kernel. This allows one to turn off
this behavior on one of two ways: When set to 1, complex
merge checks are disabled, but the simple one-shot merges
with the previous I/O request are enabled. When set to 2,
all merge tries are disabled. The default value is 0 -
which enables all types of merge tries.
Documentation/ABI/testing/sysfs-devices-power 0 → 100644
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What: /sys/devices/.../power/
Date: January 2009
Contact: Rafael J. Wysocki <rjw@sisk.pl>
Description:
The /sys/devices/.../power directory contains attributes
allowing the user space to check and modify some power
management related properties of given device.
What: /sys/devices/.../power/wakeup
Date: January 2009
Contact: Rafael J. Wysocki <rjw@sisk.pl>
Description:
The /sys/devices/.../power/wakeup attribute allows the user
space to check if the device is enabled to wake up the system
from sleep states, such as the memory sleep state (suspend to
RAM) and hibernation (suspend to disk), and to enable or disable
it to do that as desired.
Some devices support "wakeup" events, which are hardware signals
used to activate the system from a sleep state. Such devices
have one of the following two values for the sysfs power/wakeup
file:
+ "enabled\n" to issue the events;
+ "disabled\n" not to do so;
In that cases the user space can change the setting represented
by the contents of this file by writing either "enabled", or
"disabled" to it.
For the devices that are not capable of generating system wakeup
events this file contains "\n". In that cases the user space
cannot modify the contents of this file and the device cannot be
enabled to wake up the system.
What: /sys/devices/.../power/control
Date: January 2009
Contact: Rafael J. Wysocki <rjw@sisk.pl>
Description:
The /sys/devices/.../power/control attribute allows the user
space to control the run-time power management of the device.
All devices have one of the following two values for the
power/control file:
+ "auto\n" to allow the device to be power managed at run time;
+ "on\n" to prevent the device from being power managed;
The default for all devices is "auto", which means that they may
be subject to automatic power management, depending on their
drivers. Changing this attribute to "on" prevents the driver
from power managing the device at run time. Doing that while
the device is suspended causes it to be woken up.
What: /sys/devices/.../power/async
Date: January 2009
Contact: Rafael J. Wysocki <rjw@sisk.pl>
Description:
The /sys/devices/.../async attribute allows the user space to
enable or diasble the device's suspend and resume callbacks to
be executed asynchronously (ie. in separate threads, in parallel
with the main suspend/resume thread) during system-wide power
transitions (eg. suspend to RAM, hibernation).
All devices have one of the following two values for the
power/async file:
+ "enabled\n" to permit the asynchronous suspend/resume;
+ "disabled\n" to forbid it;
The value of this attribute may be changed by writing either
"enabled", or "disabled" to it.
It generally is unsafe to permit the asynchronous suspend/resume
of a device unless it is certain that all of the PM dependencies
of the device are known to the PM core. However, for some
devices this attribute is set to "enabled" by bus type code or
device drivers and in that cases it should be safe to leave the
default value.
Documentation/ABI/testing/sysfs-power
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......@@ -101,3 +101,16 @@ Description:
CAUTION: Using it will cause your machine's real-time (CMOS)
clock to be set to a random invalid time after a resume.
What: /sys/power/pm_async
Date: January 2009
Contact: Rafael J. Wysocki <rjw@sisk.pl>
Description:
The /sys/power/pm_async file controls the switch allowing the
user space to enable or disable asynchronous suspend and resume
of devices. If enabled, this feature will cause some device
drivers' suspend and resume callbacks to be executed in parallel
with each other and with the main suspend thread. It is enabled
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.
Documentation/DocBook/mac80211.tmpl
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......@@ -144,7 +144,7 @@ usage should require reading the full document.
this though and the recommendation to allow only a single
interface in STA mode at first!
</para>
!Finclude/net/mac80211.h ieee80211_if_init_conf
!Finclude/net/mac80211.h ieee80211_vif
</chapter>
<chapter id="rx-tx">
......@@ -234,7 +234,6 @@ usage should require reading the full document.
<title>Multiple queues and QoS support</title>
<para>TBD</para>
!Finclude/net/mac80211.h ieee80211_tx_queue_params
!Finclude/net/mac80211.h ieee80211_tx_queue_stats
</chapter>
<chapter id="AP">
......
Documentation/DocBook/v4l/io.xml
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......@@ -589,7 +589,8 @@ number of a video input as in &v4l2-input; field
<entry></entry>
<entry>A place holder for future extensions and custom
(driver defined) buffer types
<constant>V4L2_BUF_TYPE_PRIVATE</constant> and higher.</entry>
<constant>V4L2_BUF_TYPE_PRIVATE</constant> and higher. Applications
should set this to 0.</entry>
</row>
</tbody>
</tgroup>
......
Documentation/DocBook/v4l/vidioc-qbuf.xml
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......@@ -54,12 +54,10 @@ to enqueue an empty (capturing) or filled (output) buffer in the
driver's incoming queue. The semantics depend on the selected I/O
method.</para>
<para>To enqueue a <link linkend="mmap">memory mapped</link>
buffer applications set the <structfield>type</structfield> field of a
&v4l2-buffer; to the same buffer type as previously &v4l2-format;
<structfield>type</structfield> and &v4l2-requestbuffers;
<structfield>type</structfield>, the <structfield>memory</structfield>
field to <constant>V4L2_MEMORY_MMAP</constant> and the
<para>To enqueue a buffer applications set the <structfield>type</structfield>
field of a &v4l2-buffer; to the same buffer type as was previously used
with &v4l2-format; <structfield>type</structfield> and &v4l2-requestbuffers;
<structfield>type</structfield>. Applications must also set the
<structfield>index</structfield> field. Valid index numbers range from
zero to the number of buffers allocated with &VIDIOC-REQBUFS;
(&v4l2-requestbuffers; <structfield>count</structfield>) minus one. The
......@@ -70,8 +68,19 @@ intended for output (<structfield>type</structfield> is
<constant>V4L2_BUF_TYPE_VBI_OUTPUT</constant>) applications must also
initialize the <structfield>bytesused</structfield>,
<structfield>field</structfield> and
<structfield>timestamp</structfield> fields. See <xref
linkend="buffer" /> for details. When
<structfield>timestamp</structfield> fields, see <xref
linkend="buffer" /> for details.
Applications must also set <structfield>flags</structfield> to 0. If a driver
supports capturing from specific video inputs and you want to specify a video
input, then <structfield>flags</structfield> should be set to
<constant>V4L2_BUF_FLAG_INPUT</constant> and the field
<structfield>input</structfield> must be initialized to the desired input.
The <structfield>reserved</structfield> field must be set to 0.
</para>
<para>To enqueue a <link linkend="mmap">memory mapped</link>
buffer applications set the <structfield>memory</structfield>
field to <constant>V4L2_MEMORY_MMAP</constant>. When
<constant>VIDIOC_QBUF</constant> is called with a pointer to this
structure the driver sets the
<constant>V4L2_BUF_FLAG_MAPPED</constant> and
......@@ -81,14 +90,10 @@ structure the driver sets the
&EINVAL;.</para>
<para>To enqueue a <link linkend="userp">user pointer</link>
buffer applications set the <structfield>type</structfield> field of a
&v4l2-buffer; to the same buffer type as previously &v4l2-format;
<structfield>type</structfield> and &v4l2-requestbuffers;
<structfield>type</structfield>, the <structfield>memory</structfield>
field to <constant>V4L2_MEMORY_USERPTR</constant> and the
buffer applications set the <structfield>memory</structfield>
field to <constant>V4L2_MEMORY_USERPTR</constant>, the
<structfield>m.userptr</structfield> field to the address of the
buffer and <structfield>length</structfield> to its size. When the
buffer is intended for output additional fields must be set as above.
buffer and <structfield>length</structfield> to its size.
When <constant>VIDIOC_QBUF</constant> is called with a pointer to this
structure the driver sets the <constant>V4L2_BUF_FLAG_QUEUED</constant>
flag and clears the <constant>V4L2_BUF_FLAG_MAPPED</constant> and
......@@ -96,13 +101,14 @@ flag and clears the <constant>V4L2_BUF_FLAG_MAPPED</constant> and
<structfield>flags</structfield> field, or it returns an error code.
This ioctl locks the memory pages of the buffer in physical memory,
they cannot be swapped out to disk. Buffers remain locked until
dequeued, until the &VIDIOC-STREAMOFF; or &VIDIOC-REQBUFS; ioctl are
dequeued, until the &VIDIOC-STREAMOFF; or &VIDIOC-REQBUFS; ioctl is
called, or until the device is closed.</para>
<para>Applications call the <constant>VIDIOC_DQBUF</constant>
ioctl to dequeue a filled (capturing) or displayed (output) buffer
from the driver's outgoing queue. They just set the
<structfield>type</structfield> and <structfield>memory</structfield>
<structfield>type</structfield>, <structfield>memory</structfield>
and <structfield>reserved</structfield>
fields of a &v4l2-buffer; as above, when <constant>VIDIOC_DQBUF</constant>
is called with a pointer to this structure the driver fills the
remaining fields or returns an error code.</para>
......
Documentation/DocBook/v4l/vidioc-querybuf.xml
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......@@ -54,12 +54,13 @@ buffer at any time after buffers have been allocated with the
&VIDIOC-REQBUFS; ioctl.</para>
<para>Applications set the <structfield>type</structfield> field
of a &v4l2-buffer; to the same buffer type as previously
of a &v4l2-buffer; to the same buffer type as was previously used with
&v4l2-format; <structfield>type</structfield> and &v4l2-requestbuffers;
<structfield>type</structfield>, and the <structfield>index</structfield>
field. Valid index numbers range from zero
to the number of buffers allocated with &VIDIOC-REQBUFS;
(&v4l2-requestbuffers; <structfield>count</structfield>) minus one.
The <structfield>reserved</structfield> field should to set to 0.
After calling <constant>VIDIOC_QUERYBUF</constant> with a pointer to
this structure drivers return an error code or fill the rest of
the structure.</para>
......@@ -68,8 +69,8 @@ the structure.</para>
<constant>V4L2_BUF_FLAG_MAPPED</constant>,
<constant>V4L2_BUF_FLAG_QUEUED</constant> and
<constant>V4L2_BUF_FLAG_DONE</constant> flags will be valid. The
<structfield>memory</structfield> field will be set to
<constant>V4L2_MEMORY_MMAP</constant>, the <structfield>m.offset</structfield>
<structfield>memory</structfield> field will be set to the current
I/O method, the <structfield>m.offset</structfield>
contains the offset of the buffer from the start of the device memory,
the <structfield>length</structfield> field its size. The driver may
or may not set the remaining fields and flags, they are meaningless in
......
Documentation/DocBook/v4l/vidioc-reqbufs.xml
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......@@ -54,23 +54,23 @@ I/O. Memory mapped buffers are located in device memory and must be
allocated with this ioctl before they can be mapped into the
application's address space. User buffers are allocated by
applications themselves, and this ioctl is merely used to switch the
driver into user pointer I/O mode.</para>
driver into user pointer I/O mode and to setup some internal structures.</para>
<para>To allocate device buffers applications initialize three
fields of a <structname>v4l2_requestbuffers</structname> structure.
<para>To allocate device buffers applications initialize all
fields of the <structname>v4l2_requestbuffers</structname> structure.
They set the <structfield>type</structfield> field to the respective
stream or buffer type, the <structfield>count</structfield> field to
the desired number of buffers, and <structfield>memory</structfield>
must be set to <constant>V4L2_MEMORY_MMAP</constant>. When the ioctl
is called with a pointer to this structure the driver attempts to
allocate the requested number of buffers and stores the actual number
the desired number of buffers, <structfield>memory</structfield>
must be set to the requested I/O method and the reserved array
must be zeroed. When the ioctl
is called with a pointer to this structure the driver will attempt to allocate
the requested number of buffers and it stores the actual number
allocated in the <structfield>count</structfield> field. It can be
smaller than the number requested, even zero, when the driver runs out
of free memory. A larger number is possible when the driver requires
more buffers to function correctly.<footnote>
<para>For example video output requires at least two buffers,
of free memory. A larger number is also possible when the driver requires
more buffers to function correctly. For example video output requires at least two buffers,
one displayed and one filled by the application.</para>
</footnote> When memory mapping I/O is not supported the ioctl
<para>When the I/O method is not supported the ioctl
returns an &EINVAL;.</para>
<para>Applications can call <constant>VIDIOC_REQBUFS</constant>
......@@ -81,14 +81,6 @@ in progress, an implicit &VIDIOC-STREAMOFF;. <!-- mhs: I see no
reason why munmap()ping one or even all buffers must imply
streamoff.--></para>
<para>To negotiate user pointer I/O, applications initialize only
the <structfield>type</structfield> field and set
<structfield>memory</structfield> to
<constant>V4L2_MEMORY_USERPTR</constant>. When the ioctl is called
with a pointer to this structure the driver prepares for user pointer
I/O, when this I/O method is not supported the ioctl returns an
&EINVAL;.</para>
<table pgwide="1" frame="none" id="v4l2-requestbuffers">
<title>struct <structname>v4l2_requestbuffers</structname></title>
<tgroup cols="3">
......@@ -97,9 +89,7 @@ I/O, when this I/O method is not supported the ioctl returns an
<row>
<entry>__u32</entry>
<entry><structfield>count</structfield></entry>
<entry>The number of buffers requested or granted. This
field is only used when <structfield>memory</structfield> is set to
<constant>V4L2_MEMORY_MMAP</constant>.</entry>
<entry>The number of buffers requested or granted.</entry>
</row>
<row>
<entry>&v4l2-buf-type;</entry>
......@@ -120,7 +110,7 @@ as the &v4l2-format; <structfield>type</structfield> field. See <xref
<entry><structfield>reserved</structfield>[2]</entry>
<entry>A place holder for future extensions and custom
(driver defined) buffer types <constant>V4L2_BUF_TYPE_PRIVATE</constant> and
higher.</entry>
higher. This array should be zeroed by applications.</entry>
</row>
</tbody>
</tgroup>
......
Documentation/RCU/00-INDEX
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......@@ -6,16 +6,22 @@ checklist.txt
- Review Checklist for RCU Patches
listRCU.txt
- Using RCU to Protect Read-Mostly Linked Lists
lockdep.txt
- RCU and lockdep checking
NMI-RCU.txt
- Using RCU to Protect Dynamic NMI Handlers
rcubarrier.txt
- RCU and Unloadable Modules
rculist_nulls.txt
- RCU list primitives for use with SLAB_DESTROY_BY_RCU
rcuref.txt
- Reference-count design for elements of lists/arrays protected by RCU
rcu.txt
- RCU Concepts
rcubarrier.txt
- Unloading modules that use RCU callbacks
RTFP.txt
- List of RCU papers (bibliography) going back to 1980.
stallwarn.txt
- RCU CPU stall warnings (CONFIG_RCU_CPU_STALL_DETECTOR)
torture.txt
- RCU Torture Test Operation (CONFIG_RCU_TORTURE_TEST)
trace.txt
......
Documentation/RCU/RTFP.txt
浏览文件 @ e02c4fd3
......@@ -25,10 +25,10 @@ to be referencing the data structure. However, this mechanism was not
optimized for modern computer systems, which is not surprising given
that these overheads were not so expensive in the mid-80s. Nonetheless,
passive serialization appears to be the first deferred-destruction
mechanism to be used in production. Furthermore, the relevant patent has
lapsed, so this approach may be used in non-GPL software, if desired.
(In contrast, use of RCU is permitted only in software licensed under
GPL. Sorry!!!)
mechanism to be used in production. Furthermore, the relevant patent
has lapsed, so this approach may be used in non-GPL software, if desired.
(In contrast, implementation of RCU is permitted only in software licensed
under either GPL or LGPL. Sorry!!!)
In 1990, Pugh [Pugh90] noted that explicitly tracking which threads
were reading a given data structure permitted deferred free to operate
......@@ -150,6 +150,18 @@ preemptible RCU [PaulEMcKenney2007PreemptibleRCU], and the three-part
LWN "What is RCU?" series [PaulEMcKenney2007WhatIsRCUFundamentally,
PaulEMcKenney2008WhatIsRCUUsage, and PaulEMcKenney2008WhatIsRCUAPI].
2008 saw a journal paper on real-time RCU [DinakarGuniguntala2008IBMSysJ],
a history of how Linux changed RCU more than RCU changed Linux
[PaulEMcKenney2008RCUOSR], and a design overview of hierarchical RCU
[PaulEMcKenney2008HierarchicalRCU].
2009 introduced user-level RCU algorithms [PaulEMcKenney2009MaliciousURCU],
which Mathieu Desnoyers is now maintaining [MathieuDesnoyers2009URCU]
[MathieuDesnoyersPhD]. TINY_RCU [PaulEMcKenney2009BloatWatchRCU] made
its appearance, as did expedited RCU [PaulEMcKenney2009expeditedRCU].
The problem of resizeable RCU-protected hash tables may now be on a path
to a solution [JoshTriplett2009RPHash].
Bibtex Entries
@article{Kung80
......@@ -730,6 +742,11 @@ Revised:
"
}
#
# "What is RCU?" LWN series.
#
########################################################################
@article{DinakarGuniguntala2008IBMSysJ
,author="D. Guniguntala and P. E. McKenney and J. Triplett and J. Walpole"
,title="The read-copy-update mechanism for supporting real-time applications on shared-memory multiprocessor systems with {Linux}"
......@@ -820,3 +837,39 @@ Revised:
Uniprocessor assumptions allow simplified RCU implementation.
"
}
@unpublished{PaulEMcKenney2009expeditedRCU
,Author="Paul E. McKenney"
,Title="[{PATCH} -tip 0/3] expedited 'big hammer' {RCU} grace periods"
,month="June"
,day="25"
,year="2009"
,note="Available:
\url{http://lkml.org/lkml/2009/6/25/306}
[Viewed August 16, 2009]"
,annotation="
First posting of expedited RCU to be accepted into -tip.
"
}
@unpublished{JoshTriplett2009RPHash
,Author="Josh Triplett"
,Title="Scalable concurrent hash tables via relativistic programming"
,month="September"
,year="2009"
,note="Linux Plumbers Conference presentation"
,annotation="
RP fun with hash tables.
"
}
@phdthesis{MathieuDesnoyersPhD
, title = "Low-Impact Operating System Tracing"
, author = "Mathieu Desnoyers"
, school = "Ecole Polytechnique de Montr\'{e}al"
, month = "December"
, year = 2009
,note="Available:
\url{http://www.lttng.org/pub/thesis/desnoyers-dissertation-2009-12.pdf}
[Viewed December 9, 2009]"
}
Documentation/RCU/checklist.txt
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......@@ -8,13 +8,12 @@ would cause. This list is based on experiences reviewing such patches
over a rather long period of time, but improvements are always welcome!
0. Is RCU being applied to a read-mostly situation? If the data
structure is updated more than about 10% of the time, then
you should strongly consider some other approach, unless
detailed performance measurements show that RCU is nonetheless
the right tool for the job. Yes, you might think of RCU
as simply cutting overhead off of the readers and imposing it
on the writers. That is exactly why normal uses of RCU will
do much more reading than updating.
structure is updated more than about 10% of the time, then you
should strongly consider some other approach, unless detailed
performance measurements show that RCU is nonetheless the right
tool for the job. Yes, RCU does reduce read-side overhead by
increasing write-side overhead, which is exactly why normal uses
of RCU will do much more reading than updating.
Another exception is where performance is not an issue, and RCU
provides a simpler implementation. An example of this situation
......@@ -35,13 +34,13 @@ over a rather long period of time, but improvements are always welcome!
If you choose #b, be prepared to describe how you have handled
memory barriers on weakly ordered machines (pretty much all of
them -- even x86 allows reads to be reordered), and be prepared
to explain why this added complexity is worthwhile. If you
choose #c, be prepared to explain how this single task does not
become a major bottleneck on big multiprocessor machines (for
example, if the task is updating information relating to itself
that other tasks can read, there by definition can be no
bottleneck).
them -- even x86 allows later loads to be reordered to precede
earlier stores), and be prepared to explain why this added
complexity is worthwhile. If you choose #c, be prepared to
explain how this single task does not become a major bottleneck on
big multiprocessor machines (for example, if the task is updating
information relating to itself that other tasks can read, there
by definition can be no bottleneck).
2. Do the RCU read-side critical sections make proper use of
rcu_read_lock() and friends? These primitives are needed
......@@ -51,8 +50,10 @@ over a rather long period of time, but improvements are always welcome!
actuarial risk of your kernel.
As a rough rule of thumb, any dereference of an RCU-protected
pointer must be covered by rcu_read_lock() or rcu_read_lock_bh()
or by the appropriate update-side lock.
pointer must be covered by rcu_read_lock(), rcu_read_lock_bh(),
rcu_read_lock_sched(), or by the appropriate update-side lock.
Disabling of preemption can serve as rcu_read_lock_sched(), but
is less readable.
3. Does the update code tolerate concurrent accesses?
......@@ -62,25 +63,27 @@ over a rather long period of time, but improvements are always welcome!
of ways to handle this concurrency, depending on the situation:
a. Use the RCU variants of the list and hlist update
primitives to add, remove, and replace elements on an
RCU-protected list. Alternatively, use the RCU-protected
trees that have been added to the Linux kernel.
primitives to add, remove, and replace elements on
an RCU-protected list. Alternatively, use the other
RCU-protected data structures that have been added to
the Linux kernel.
This is almost always the best approach.
b. Proceed as in (a) above, but also maintain per-element
locks (that are acquired by both readers and writers)
that guard per-element state. Of course, fields that
the readers refrain from accessing can be guarded by the
update-side lock.
the readers refrain from accessing can be guarded by
some other lock acquired only by updaters, if desired.
This works quite well, also.
c. Make updates appear atomic to readers. For example,
pointer updates to properly aligned fields will appear
atomic, as will individual atomic primitives. Operations
performed under a lock and sequences of multiple atomic
primitives will -not- appear to be atomic.
pointer updates to properly aligned fields will
appear atomic, as will individual atomic primitives.
Sequences of perations performed under a lock will -not-
appear to be atomic to RCU readers, nor will sequences
of multiple atomic primitives.
This can work, but is starting to get a bit tricky.
......@@ -98,9 +101,9 @@ over a rather long period of time, but improvements are always welcome!
a new structure containing updated values.
4. Weakly ordered CPUs pose special challenges. Almost all CPUs
are weakly ordered -- even i386 CPUs allow reads to be reordered.
RCU code must take all of the following measures to prevent
memory-corruption problems:
are weakly ordered -- even x86 CPUs allow later loads to be
reordered to precede earlier stores. RCU code must take all of
the following measures to prevent memory-corruption problems:
a. Readers must maintain proper ordering of their memory
accesses. The rcu_dereference() primitive ensures that
......@@ -113,14 +116,25 @@ over a rather long period of time, but improvements are always welcome!
The rcu_dereference() primitive is also an excellent
documentation aid, letting the person reading the code
know exactly which pointers are protected by RCU.
The rcu_dereference() primitive is used by the various
"_rcu()" list-traversal primitives, such as the
list_for_each_entry_rcu(). Note that it is perfectly
legal (if redundant) for update-side code to use
rcu_dereference() and the "_rcu()" list-traversal
primitives. This is particularly useful in code
that is common to readers and updaters.
Please note that compilers can also reorder code, and
they are becoming increasingly aggressive about doing
just that. The rcu_dereference() primitive therefore
also prevents destructive compiler optimizations.
The rcu_dereference() primitive is used by the
various "_rcu()" list-traversal primitives, such
as the list_for_each_entry_rcu(). Note that it is
perfectly legal (if redundant) for update-side code to
use rcu_dereference() and the "_rcu()" list-traversal
primitives. This is particularly useful in code that
is common to readers and updaters. However, lockdep
will complain if you access rcu_dereference() outside
of an RCU read-side critical section. See lockdep.txt
to learn what to do about this.
Of course, neither rcu_dereference() nor the "_rcu()"
list-traversal primitives can substitute for a good
concurrency design coordinating among multiple updaters.
b. If the list macros are being used, the list_add_tail_rcu()
and list_add_rcu() primitives must be used in order
......@@ -135,11 +149,14 @@ over a rather long period of time, but improvements are always welcome!
readers. Similarly, if the hlist macros are being used,
the hlist_del_rcu() primitive is required.
The list_replace_rcu() primitive may be used to
replace an old structure with a new one in an
RCU-protected list.
The list_replace_rcu() and hlist_replace_rcu() primitives
may be used to replace an old structure with a new one
in their respective types of RCU-protected lists.
d. Rules similar to (4b) and (4c) apply to the "hlist_nulls"
type of RCU-protected linked lists.
d. Updates must ensure that initialization of a given
e. Updates must ensure that initialization of a given
structure happens before pointers to that structure are
publicized. Use the rcu_assign_pointer() primitive
when publicizing a pointer to a structure that can
......@@ -151,16 +168,31 @@ over a rather long period of time, but improvements are always welcome!
it cannot block.
6. Since synchronize_rcu() can block, it cannot be called from
any sort of irq context. Ditto for synchronize_sched() and
synchronize_srcu().
7. If the updater uses call_rcu(), then the corresponding readers
must use rcu_read_lock() and rcu_read_unlock(). If the updater
uses call_rcu_bh(), then the corresponding readers must use
rcu_read_lock_bh() and rcu_read_unlock_bh(). If the updater
uses call_rcu_sched(), then the corresponding readers must
disable preemption. Mixing things up will result in confusion
and broken kernels.
any sort of irq context. The same rule applies for
synchronize_rcu_bh(), synchronize_sched(), synchronize_srcu(),
synchronize_rcu_expedited(), synchronize_rcu_bh_expedited(),
synchronize_sched_expedite(), and synchronize_srcu_expedited().
The expedited forms of these primitives have the same semantics
as the non-expedited forms, but expediting is both expensive
and unfriendly to real-time workloads. Use of the expedited
primitives should be restricted to rare configuration-change
operations that would not normally be undertaken while a real-time
workload is running.
7. If the updater uses call_rcu() or synchronize_rcu(), then the
corresponding readers must use rcu_read_lock() and
rcu_read_unlock(). If the updater uses call_rcu_bh() or
synchronize_rcu_bh(), then the corresponding readers must
use rcu_read_lock_bh() and rcu_read_unlock_bh(). If the
updater uses call_rcu_sched() or synchronize_sched(), then
the corresponding readers must disable preemption, possibly
by calling rcu_read_lock_sched() and rcu_read_unlock_sched().
If the updater uses synchronize_srcu(), the the corresponding
readers must use srcu_read_lock() and srcu_read_unlock(),
and with the same srcu_struct. The rules for the expedited
primitives are the same as for their non-expedited counterparts.
Mixing things up will result in confusion and broken kernels.
One exception to this rule: rcu_read_lock() and rcu_read_unlock()
may be substituted for rcu_read_lock_bh() and rcu_read_unlock_bh()
......@@ -212,6 +244,8 @@ over a rather long period of time, but improvements are always welcome!
e. Periodically invoke synchronize_rcu(), permitting a limited
number of updates per grace period.
The same cautions apply to call_rcu_bh() and call_rcu_sched().
9. All RCU list-traversal primitives, which include
rcu_dereference(), list_for_each_entry_rcu(),
list_for_each_continue_rcu(), and list_for_each_safe_rcu(),
......@@ -219,7 +253,9 @@ over a rather long period of time, but improvements are always welcome!
must be protected by appropriate update-side locks. RCU
read-side critical sections are delimited by rcu_read_lock()
and rcu_read_unlock(), or by similar primitives such as
rcu_read_lock_bh() and rcu_read_unlock_bh().
rcu_read_lock_bh() and rcu_read_unlock_bh(), in which case
the matching rcu_dereference() primitive must be used in order
to keep lockdep happy, in this case, rcu_dereference_bh().
The reason that it is permissible to use RCU list-traversal
primitives when the update-side lock is held is that doing so
......@@ -229,7 +265,8 @@ over a rather long period of time, but improvements are always welcome!
10. Conversely, if you are in an RCU read-side critical section,
and you don't hold the appropriate update-side lock, you -must-
use the "_rcu()" variants of the list macros. Failing to do so
will break Alpha and confuse people reading your code.
will break Alpha, cause aggressive compilers to generate bad code,
and confuse people trying to read your code.
11. Note that synchronize_rcu() -only- guarantees to wait until
all currently executing rcu_read_lock()-protected RCU read-side
......@@ -239,15 +276,21 @@ over a rather long period of time, but improvements are always welcome!
rcu_read_lock()-protected read-side critical sections, do -not-
use synchronize_rcu().
If you want to wait for some of these other things, you might
instead need to use synchronize_irq() or synchronize_sched().
Similarly, disabling preemption is not an acceptable substitute
for rcu_read_lock(). Code that attempts to use preemption
disabling where it should be using rcu_read_lock() will break
in real-time kernel builds.
If you want to wait for interrupt handlers, NMI handlers, and
code under the influence of preempt_disable(), you instead
need to use synchronize_irq() or synchronize_sched().
12. Any lock acquired by an RCU callback must be acquired elsewhere
with softirq disabled, e.g., via spin_lock_irqsave(),
spin_lock_bh(), etc. Failing to disable irq on a given
acquisition of that lock will result in deadlock as soon as the
RCU callback happens to interrupt that acquisition's critical
section.
acquisition of that lock will result in deadlock as soon as
the RCU softirq handler happens to run your RCU callback while
interrupting that acquisition's critical section.
13. RCU callbacks can be and are executed in parallel. In many cases,
the callback code simply wrappers around kfree(), so that this
......@@ -265,29 +308,30 @@ over a rather long period of time, but improvements are always welcome!
not the case, a self-spawning RCU callback would prevent the
victim CPU from ever going offline.)
14. SRCU (srcu_read_lock(), srcu_read_unlock(), and synchronize_srcu())
may only be invoked from process context. Unlike other forms of
RCU, it -is- permissible to block in an SRCU read-side critical
section (demarked by srcu_read_lock() and srcu_read_unlock()),
hence the "SRCU": "sleepable RCU". Please note that if you
don't need to sleep in read-side critical sections, you should
be using RCU rather than SRCU, because RCU is almost always
faster and easier to use than is SRCU.
14. SRCU (srcu_read_lock(), srcu_read_unlock(), srcu_dereference(),
synchronize_srcu(), and synchronize_srcu_expedited()) may only
be invoked from process context. Unlike other forms of RCU, it
-is- permissible to block in an SRCU read-side critical section
(demarked by srcu_read_lock() and srcu_read_unlock()), hence the
"SRCU": "sleepable RCU". Please note that if you don't need
to sleep in read-side critical sections, you should be using
RCU rather than SRCU, because RCU is almost always faster and
easier to use than is SRCU.
Also unlike other forms of RCU, explicit initialization
and cleanup is required via init_srcu_struct() and
cleanup_srcu_struct(). These are passed a "struct srcu_struct"
that defines the scope of a given SRCU domain. Once initialized,
the srcu_struct is passed to srcu_read_lock(), srcu_read_unlock()
and synchronize_srcu(). A given synchronize_srcu() waits only
for SRCU read-side critical sections governed by srcu_read_lock()
and srcu_read_unlock() calls that have been passd the same
srcu_struct. This property is what makes sleeping read-side
critical sections tolerable -- a given subsystem delays only
its own updates, not those of other subsystems using SRCU.
Therefore, SRCU is less prone to OOM the system than RCU would
be if RCU's read-side critical sections were permitted to
sleep.
synchronize_srcu(), and synchronize_srcu_expedited(). A given
synchronize_srcu() waits only for SRCU read-side critical
sections governed by srcu_read_lock() and srcu_read_unlock()
calls that have been passed the same srcu_struct. This property
is what makes sleeping read-side critical sections tolerable --
a given subsystem delays only its own updates, not those of other
subsystems using SRCU. Therefore, SRCU is less prone to OOM the
system than RCU would be if RCU's read-side critical sections
were permitted to sleep.
The ability to sleep in read-side critical sections does not
come for free. First, corresponding srcu_read_lock() and
......@@ -311,12 +355,12 @@ over a rather long period of time, but improvements are always welcome!
destructive operation, and -only- -then- invoke call_rcu(),
synchronize_rcu(), or friends.
Because these primitives only wait for pre-existing readers,
it is the caller's responsibility to guarantee safety to
any subsequent readers.
Because these primitives only wait for pre-existing readers, it
is the caller's responsibility to guarantee that any subsequent
readers will execute safely.
16. The various RCU read-side primitives do -not- contain memory
barriers. The CPU (and in some cases, the compiler) is free
to reorder code into and out of RCU read-side critical sections.
It is the responsibility of the RCU update-side primitives to
deal with this.
16. The various RCU read-side primitives do -not- necessarily contain
memory barriers. You should therefore plan for the CPU
and the compiler to freely reorder code into and out of RCU
read-side critical sections. It is the responsibility of the
RCU update-side primitives to deal with this.
Documentation/RCU/lockdep.txt 0 → 100644
浏览文件 @ e02c4fd3
RCU and lockdep checking
All flavors of RCU have lockdep checking available, so that lockdep is
aware of when each task enters and leaves any flavor of RCU read-side
critical section. Each flavor of RCU is tracked separately (but note
that this is not the case in 2.6.32 and earlier). This allows lockdep's
tracking to include RCU state, which can sometimes help when debugging
deadlocks and the like.
In addition, RCU provides the following primitives that check lockdep's
state:
rcu_read_lock_held() for normal RCU.
rcu_read_lock_bh_held() for RCU-bh.
rcu_read_lock_sched_held() for RCU-sched.
srcu_read_lock_held() for SRCU.
These functions are conservative, and will therefore return 1 if they
aren't certain (for example, if CONFIG_DEBUG_LOCK_ALLOC is not set).
This prevents things like WARN_ON(!rcu_read_lock_held()) from giving false
positives when lockdep is disabled.
In addition, a separate kernel config parameter CONFIG_PROVE_RCU enables
checking of rcu_dereference() primitives:
rcu_dereference(p):
Check for RCU read-side critical section.
rcu_dereference_bh(p):
Check for RCU-bh read-side critical section.
rcu_dereference_sched(p):
Check for RCU-sched read-side critical section.
srcu_dereference(p, sp):
Check for SRCU read-side critical section.
rcu_dereference_check(p, c):
Use explicit check expression "c".
rcu_dereference_raw(p)
Don't check. (Use sparingly, if at all.)
The rcu_dereference_check() check expression can be any boolean
expression, but would normally include one of the rcu_read_lock_held()
family of functions and a lockdep expression. However, any boolean
expression can be used. For a moderately ornate example, consider
the following:
file = rcu_dereference_check(fdt->fd[fd],
rcu_read_lock_held() ||
lockdep_is_held(&files->file_lock) ||
atomic_read(&files->count) == 1);
This expression picks up the pointer "fdt->fd[fd]" in an RCU-safe manner,
and, if CONFIG_PROVE_RCU is configured, verifies that this expression
is used in:
1. An RCU read-side critical section, or
2. with files->file_lock held, or
3. on an unshared files_struct.
In case (1), the pointer is picked up in an RCU-safe manner for vanilla
RCU read-side critical sections, in case (2) the ->file_lock prevents
any change from taking place, and finally, in case (3) the current task
is the only task accessing the file_struct, again preventing any change
from taking place.
There are currently only "universal" versions of the rcu_assign_pointer()
and RCU list-/tree-traversal primitives, which do not (yet) check for
being in an RCU read-side critical section. In the future, separate
versions of these primitives might be created.
Documentation/RCU/rcu.txt
浏览文件 @ e02c4fd3
......@@ -75,6 +75,8 @@ o I hear that RCU is patented? What is with that?
search for the string "Patent" in RTFP.txt to find them.
Of these, one was allowed to lapse by the assignee, and the
others have been contributed to the Linux kernel under GPL.
There are now also LGPL implementations of user-level RCU
available (http://lttng.org/?q=node/18).
o I hear that RCU needs work in order to support realtime kernels?
......@@ -91,48 +93,4 @@ o Where can I find more information on RCU?
o What are all these files in this directory?
NMI-RCU.txt
Describes how to use RCU to implement dynamic
NMI handlers, which can be revectored on the fly,
without rebooting.
RTFP.txt
List of RCU-related publications and web sites.
UP.txt
Discussion of RCU usage in UP kernels.
arrayRCU.txt
Describes how to use RCU to protect arrays, with
resizeable arrays whose elements reference other
data structures being of the most interest.
checklist.txt
Lists things to check for when inspecting code that
uses RCU.
listRCU.txt
Describes how to use RCU to protect linked lists.
This is the simplest and most common use of RCU
in the Linux kernel.
rcu.txt
You are reading it!
rcuref.txt
Describes how to combine use of reference counts
with RCU.
whatisRCU.txt
Overview of how the RCU implementation works. Along
the way, presents a conceptual view of RCU.
See 00-INDEX for the list.
Documentation/RCU/stallwarn.txt 0 → 100644
浏览文件 @ e02c4fd3
Using RCU's CPU Stall Detector
The CONFIG_RCU_CPU_STALL_DETECTOR kernel config parameter enables
RCU's CPU stall detector, which detects conditions that unduly delay
RCU grace periods. The stall detector's idea of what constitutes
"unduly delayed" is controlled by a pair of C preprocessor macros:
RCU_SECONDS_TILL_STALL_CHECK
This macro defines the period of time that RCU will wait from
the beginning of a grace period until it issues an RCU CPU
stall warning. It is normally ten seconds.
RCU_SECONDS_TILL_STALL_RECHECK
This macro defines the period of time that RCU will wait after
issuing a stall warning until it issues another stall warning.
It is normally set to thirty seconds.
RCU_STALL_RAT_DELAY
The CPU stall detector tries to make the offending CPU rat on itself,
as this often gives better-quality stack traces. However, if
the offending CPU does not detect its own stall in the number
of jiffies specified by RCU_STALL_RAT_DELAY, then other CPUs will
complain. This is normally set to two jiffies.
The following problems can result in an RCU CPU stall warning:
o A CPU looping in an RCU read-side critical section.
o A CPU looping with interrupts disabled.
o A CPU looping with preemption disabled.
o For !CONFIG_PREEMPT kernels, a CPU looping anywhere in the kernel
without invoking schedule().
o A bug in the RCU implementation.
o A hardware failure. This is quite unlikely, but has occurred
at least once in a former life. A CPU failed in a running system,
becoming unresponsive, but not causing an immediate crash.
This resulted in a series of RCU CPU stall warnings, eventually
leading the realization that the CPU had failed.
The RCU, RCU-sched, and RCU-bh implementations have CPU stall warning.
SRCU does not do so directly, but its calls to synchronize_sched() will
result in RCU-sched detecting any CPU stalls that might be occurring.
To diagnose the cause of the stall, inspect the stack traces. The offending
function will usually be near the top of the stack. If you have a series
of stall warnings from a single extended stall, comparing the stack traces
can often help determine where the stall is occurring, which will usually
be in the function nearest the top of the stack that stays the same from
trace to trace.
RCU bugs can often be debugged with the help of CONFIG_RCU_TRACE.
Documentation/RCU/torture.txt
浏览文件 @ e02c4fd3
......@@ -30,6 +30,18 @@ MODULE PARAMETERS
This module has the following parameters:
fqs_duration Duration (in microseconds) of artificially induced bursts
of force_quiescent_state() invocations. In RCU
implementations having force_quiescent_state(), these
bursts help force races between forcing a given grace
period and that grace period ending on its own.
fqs_holdoff Holdoff time (in microseconds) between consecutive calls
to force_quiescent_state() within a burst.
fqs_stutter Wait time (in seconds) between consecutive bursts
of calls to force_quiescent_state().
irqreaders Says to invoke RCU readers from irq level. This is currently
done via timers. Defaults to "1" for variants of RCU that
permit this. (Or, more accurately, variants of RCU that do
......
Documentation/RCU/whatisRCU.txt
浏览文件 @ e02c4fd3
......@@ -323,14 +323,17 @@ used as follows:
Defer Protect
a. synchronize_rcu() rcu_read_lock() / rcu_read_unlock()
call_rcu()
call_rcu() rcu_dereference()
b. call_rcu_bh() rcu_read_lock_bh() / rcu_read_unlock_bh()
rcu_dereference_bh()
c. synchronize_sched() preempt_disable() / preempt_enable()
c. synchronize_sched() rcu_read_lock_sched() / rcu_read_unlock_sched()
preempt_disable() / preempt_enable()
local_irq_save() / local_irq_restore()
hardirq enter / hardirq exit
NMI enter / NMI exit
rcu_dereference_sched()
These three mechanisms are used as follows:
......@@ -780,9 +783,8 @@ Linux-kernel source code, but it helps to have a full list of the
APIs, since there does not appear to be a way to categorize them
in docbook. Here is the list, by category.
RCU pointer/list traversal:
RCU list traversal:
rcu_dereference
list_for_each_entry_rcu
hlist_for_each_entry_rcu
hlist_nulls_for_each_entry_rcu
......@@ -808,7 +810,7 @@ RCU: Critical sections Grace period Barrier
rcu_read_lock synchronize_net rcu_barrier
rcu_read_unlock synchronize_rcu
synchronize_rcu_expedited
rcu_dereference synchronize_rcu_expedited
call_rcu
......@@ -816,7 +818,7 @@ bh: Critical sections Grace period Barrier
rcu_read_lock_bh call_rcu_bh rcu_barrier_bh
rcu_read_unlock_bh synchronize_rcu_bh
synchronize_rcu_bh_expedited
rcu_dereference_bh synchronize_rcu_bh_expedited
sched: Critical sections Grace period Barrier
......@@ -825,12 +827,14 @@ sched: Critical sections Grace period Barrier
rcu_read_unlock_sched call_rcu_sched
[preempt_disable] synchronize_sched_expedited
[and friends]
rcu_dereference_sched
SRCU: Critical sections Grace period Barrier
srcu_read_lock synchronize_srcu N/A
srcu_read_unlock synchronize_srcu_expedited
srcu_dereference
SRCU: Initialization/cleanup
init_srcu_struct
......
Documentation/arm/memory.txt
浏览文件 @ e02c4fd3
......@@ -59,7 +59,11 @@ PAGE_OFFSET high_memory-1 Kernel direct-mapped RAM region.
This maps the platforms RAM, and typically
maps all platform RAM in a 1:1 relationship.
TASK_SIZE PAGE_OFFSET-1 Kernel module space
PKMAP_BASE PAGE_OFFSET-1 Permanent kernel mappings
One way of mapping HIGHMEM pages into kernel
space.
MODULES_VADDR MODULES_END-1 Kernel module space
Kernel modules inserted via insmod are
placed here using dynamic mappings.
......
Documentation/block/queue-sysfs.txt
浏览文件 @ e02c4fd3
......@@ -25,11 +25,11 @@ size allowed by the hardware.
nomerges (RW)
-------------
This enables the user to disable the lookup logic involved with IO merging
requests in the block layer. Merging may still occur through a direct
1-hit cache, since that comes for (almost) free. The IO scheduler will not
waste cycles doing tree/hash lookups for merges if nomerges is 1. Defaults
to 0, enabling all merges.
This enables the user to disable the lookup logic involved with IO
merging requests in the block layer. By default (0) all merges are
enabled. When set to 1 only simple one-hit merges will be tried. When
set to 2 no merge algorithms will be tried (including one-hit or more
complex tree/hash lookups).
nr_requests (RW)
----------------
......
Documentation/cachetlb.txt
浏览文件 @ e02c4fd3
......@@ -88,12 +88,12 @@ changes occur:
This is used primarily during fault processing.
5) void update_mmu_cache(struct vm_area_struct *vma,
unsigned long address, pte_t pte)
unsigned long address, pte_t *ptep)
At the end of every page fault, this routine is invoked to
tell the architecture specific code that a translation
described by "pte" now exists at virtual address "address"
for address space "vma->vm_mm", in the software page tables.
now exists at virtual address "address" for address space
"vma->vm_mm", in the software page tables.
A port may use this information in any way it so chooses.
For example, it could use this event to pre-load TLB
......@@ -377,3 +377,27 @@ maps this page at its virtual address.
All the functionality of flush_icache_page can be implemented in
flush_dcache_page and update_mmu_cache. In 2.7 the hope is to
remove this interface completely.
The final category of APIs is for I/O to deliberately aliased address
ranges inside the kernel. Such aliases are set up by use of the
vmap/vmalloc API. Since kernel I/O goes via physical pages, the I/O
subsystem assumes that the user mapping and kernel offset mapping are
the only aliases. This isn't true for vmap aliases, so anything in
the kernel trying to do I/O to vmap areas must manually manage
coherency. It must do this by flushing the vmap range before doing
I/O and invalidating it after the I/O returns.
void flush_kernel_vmap_range(void *vaddr, int size)
flushes the kernel cache for a given virtual address range in
the vmap area. This is to make sure that any data the kernel
modified in the vmap range is made visible to the physical
page. The design is to make this area safe to perform I/O on.
Note that this API does *not* also flush the offset map alias
of the area.
void invalidate_kernel_vmap_range(void *vaddr, int size) invalidates
the cache for a given virtual address range in the vmap area
which prevents the processor from making the cache stale by
speculatively reading data while the I/O was occurring to the
physical pages. This is only necessary for data reads into the
vmap area.
Documentation/dontdiff
浏览文件 @ e02c4fd3
......@@ -69,7 +69,6 @@ av_permissions.h
bbootsect
bin2c
binkernel.spec
binoffset
bootsect
bounds.h
bsetup
......
Documentation/dvb/get_dvb_firmware
浏览文件 @ e02c4fd3
......@@ -26,7 +26,7 @@ use IO::Handle;
"dec3000s", "vp7041", "dibusb", "nxt2002", "nxt2004",
"or51211", "or51132_qam", "or51132_vsb", "bluebird",
"opera1", "cx231xx", "cx18", "cx23885", "pvrusb2", "mpc718",
"af9015");
"af9015", "ngene");
# Check args
syntax() if (scalar(@ARGV) != 1);
......@@ -39,7 +39,7 @@ for ($i=0; $i < scalar(@components); $i++) {
die $@ if $@;
print STDERR <<EOF;
Firmware(s) $outfile extracted successfully.
Now copy it(they) to either /usr/lib/hotplug/firmware or /lib/firmware
Now copy it(them) to either /usr/lib/hotplug/firmware or /lib/firmware
(depending on configuration of firmware hotplug).
EOF
exit(0);
......@@ -549,6 +549,24 @@ sub af9015 {
close INFILE;
}
sub ngene {
my $url = "http://www.digitaldevices.de/download/";
my $file1 = "ngene_15.fw";
my $hash1 = "d798d5a757121174f0dbc5f2833c0c85";
my $file2 = "ngene_17.fw";
my $hash2 = "26b687136e127b8ac24b81e0eeafc20b";
checkstandard();
wgetfile($file1, $url . $file1);
verify($file1, $hash1);
wgetfile($file2, $url . $file2);
verify($file2, $hash2);
"$file1, $file2";
}
# ---------------------------------------------------------------
# Utilities
......@@ -667,6 +685,7 @@ sub delzero{
sub syntax() {
print STDERR "syntax: get_dvb_firmware <component>\n";
print STDERR "Supported components:\n";
@components = sort @components;
for($i=0; $i < scalar(@components); $i++) {
print STDERR "\t" . $components[$i] . "\n";
}
......
Documentation/feature-removal-schedule.txt
浏览文件 @ e02c4fd3
......@@ -6,21 +6,6 @@ be removed from this file.
---------------------------
What: USER_SCHED
When: 2.6.34
Why: USER_SCHED was implemented as a proof of concept for group scheduling.
The effect of USER_SCHED can already be achieved from userspace with
the help of libcgroup. The removal of USER_SCHED will also simplify
the scheduler code with the removal of one major ifdef. There are also
issues USER_SCHED has with USER_NS. A decision was taken not to fix
those and instead remove USER_SCHED. Also new group scheduling
features will not be implemented for USER_SCHED.
Who: Dhaval Giani <dhaval@linux.vnet.ibm.com>
---------------------------
What: PRISM54
When: 2.6.34
......@@ -64,6 +49,17 @@ Who: Robin Getz <rgetz@blackfin.uclinux.org> & Matt Mackall <mpm@selenic.com>
---------------------------
What: Deprecated snapshot ioctls
When: 2.6.36
Why: The ioctls in kernel/power/user.c were marked as deprecated long time
ago. Now they notify users about that so that they need to replace
their userspace. After some more time, remove them completely.
Who: Jiri Slaby <jirislaby@gmail.com>
---------------------------
What: The ieee80211_regdom module parameter
When: March 2010 / desktop catchup
......@@ -88,27 +84,6 @@ Who: Luis R. Rodriguez <lrodriguez@atheros.com>
---------------------------
What: CONFIG_WIRELESS_OLD_REGULATORY - old static regulatory information
When: March 2010 / desktop catchup
Why: The old regulatory infrastructure has been replaced with a new one
which does not require statically defined regulatory domains. We do
not want to keep static regulatory domains in the kernel due to the
the dynamic nature of regulatory law and localization. We kept around
the old static definitions for the regulatory domains of:
* US
* JP
* EU
and used by default the US when CONFIG_WIRELESS_OLD_REGULATORY was
set. We will remove this option once the standard Linux desktop catches
up with the new userspace APIs we have implemented.
Who: Luis R. Rodriguez <lrodriguez@atheros.com>
---------------------------
What: dev->power.power_state
When: July 2007
Why: Broken design for runtime control over driver power states, confusing
......@@ -542,3 +517,36 @@ Why: Duplicate functionality with the gspca_zc3xx driver, zc0301 only
sensors) wich are also supported by the gspca_zc3xx driver
(which supports 53 USB-ID's in total)
Who: Hans de Goede <hdegoede@redhat.com>
----------------------------
What: corgikbd, spitzkbd, tosakbd driver
When: 2.6.35
Files: drivers/input/keyboard/{corgi,spitz,tosa}kbd.c
Why: We now have a generic GPIO based matrix keyboard driver that
are fully capable of handling all the keys on these devices.
The original drivers manipulate the GPIO registers directly
and so are difficult to maintain.
Who: Eric Miao <eric.y.miao@gmail.com>
----------------------------
What: corgi_ssp and corgi_ts driver
When: 2.6.35
Files: arch/arm/mach-pxa/corgi_ssp.c, drivers/input/touchscreen/corgi_ts.c
Why: The corgi touchscreen is now deprecated in favour of the generic
ads7846.c driver. The noise reduction technique used in corgi_ts.c,
that's to wait till vsync before ADC sampling, is also integrated into
ads7846 driver now. Provided that the original driver is not generic
and is difficult to maintain, it will be removed later.
Who: Eric Miao <eric.y.miao@gmail.com>
----------------------------
What: capifs
When: February 2011
Files: drivers/isdn/capi/capifs.*
Why: udev fully replaces this special file system that only contains CAPI
NCCI TTY device nodes. User space (pppdcapiplugin) works without
noticing the difference.
Who: Jan Kiszka <jan.kiszka@web.de>
Documentation/filesystems/dentry-locking.txt
浏览文件 @ e02c4fd3
......@@ -62,7 +62,8 @@ changes are :
2. Insertion of a dentry into the hash table is done using
hlist_add_head_rcu() which take care of ordering the writes - the
writes to the dentry must be visible before the dentry is
inserted. This works in conjunction with hlist_for_each_rcu() while
inserted. This works in conjunction with hlist_for_each_rcu(),
which has since been replaced by hlist_for_each_entry_rcu(), while
walking the hash chain. The only requirement is that all
initialization to the dentry must be done before
hlist_add_head_rcu() since we don't have dcache_lock protection
......
Documentation/input/sentelic.txt
浏览文件 @ e02c4fd3
Copyright (C) 2002-2008 Sentelic Corporation.
Last update: Oct-31-2008
Copyright (C) 2002-2010 Sentelic Corporation.
Last update: Jan-13-2010
==============================================================================
* Finger Sensing Pad Intellimouse Mode(scrolling wheel, 4th and 5th buttons)
......@@ -44,7 +44,7 @@ B) MSID 6: Horizontal and Vertical scrolling.
Packet 1
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
1 |Y|X|y|x|1|M|R|L| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 | | |B|F|l|r|u|d|
1 |Y|X|y|x|1|M|R|L| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 | | |B|F|r|l|u|d|
|---------------| |---------------| |---------------| |---------------|
Byte 1: Bit7 => Y overflow
......@@ -59,15 +59,15 @@ Byte 2: X Movement(9-bit 2's complement integers)
Byte 3: Y Movement(9-bit 2's complement integers)
Byte 4: Bit0 => the Vertical scrolling movement downward.
Bit1 => the Vertical scrolling movement upward.
Bit2 => the Vertical scrolling movement rightward.
Bit3 => the Vertical scrolling movement leftward.
Bit2 => the Horizontal scrolling movement leftward.
Bit3 => the Horizontal scrolling movement rightward.
Bit4 => 1 = 4th mouse button is pressed, Forward one page.
0 = 4th mouse button is not pressed.
Bit5 => 1 = 5th mouse button is pressed, Backward one page.
0 = 5th mouse button is not pressed.
C) MSID 7:
# FSP uses 2 packets(8 Bytes) data to represent Absolute Position
# FSP uses 2 packets (8 Bytes) to represent Absolute Position.
so we have PACKET NUMBER to identify packets.
If PACKET NUMBER is 0, the packet is Packet 1.
If PACKET NUMBER is 1, the packet is Packet 2.
......@@ -129,7 +129,7 @@ Byte 3: Message Type => 0x00 (Disabled)
Byte 4: Bit7~Bit0 => Don't Care
==============================================================================
* Absolute position for STL3888-A0.
* Absolute position for STL3888-Ax.
==============================================================================
Packet 1 (ABSOLUTE POSITION)
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
......@@ -179,14 +179,14 @@ Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
Bit5~Bit4 => y2_g
Bit7~Bit6 => x2_g
Notify Packet for STL3888-A0
Notify Packet for STL3888-Ax
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
1 |1|0|1|P|1|M|R|L| 2 |C|C|C|C|C|C|C|C| 3 |0|0|F|F|0|0|0|i| 4 |r|l|d|u|0|0|0|0|
|---------------| |---------------| |---------------| |---------------|
Byte 1: Bit7~Bit6 => 00, Normal data packet
=> 01, Absolute coordination packet
=> 01, Absolute coordinates packet
=> 10, Notify packet
Bit5 => 1
Bit4 => when in absolute coordinates mode (valid when EN_PKT_GO is 1):
......@@ -205,15 +205,106 @@ Byte 4: Bit7 => scroll right button
Bit6 => scroll left button
Bit5 => scroll down button
Bit4 => scroll up button
* Note that if gesture and additional button (Bit4~Bit7)
happen at the same time, the button information will not
be sent.
* Note that if gesture and additional buttoni (Bit4~Bit7)
happen at the same time, the button information will not
be sent.
Bit3~Bit0 => Reserved
Sample sequence of Multi-finger, Multi-coordinate mode:
notify packet (valid bit == 1), abs pkt 1, abs pkt 2, abs pkt 1,
abs pkt 2, ..., notify packet (valid bit == 0)
==============================================================================
* Absolute position for STL3888-B0.
==============================================================================
Packet 1(ABSOLUTE POSITION)
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
1 |0|1|V|F|1|0|R|L| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 |r|l|u|d|X|X|Y|Y|
|---------------| |---------------| |---------------| |---------------|
Byte 1: Bit7~Bit6 => 00, Normal data packet
=> 01, Absolute coordinates packet
=> 10, Notify packet
Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
When both fingers are up, the last two reports have zero valid
bit.
Bit4 => finger up/down information. 1: finger down, 0: finger up.
Bit3 => 1
Bit2 => finger index, 0 is the first finger, 1 is the second finger.
Bit1 => Right Button, 1 is pressed, 0 is not pressed.
Bit0 => Left Button, 1 is pressed, 0 is not pressed.
Byte 2: X coordinate (xpos[9:2])
Byte 3: Y coordinate (ypos[9:2])
Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
Bit3~Bit2 => X coordinate (ypos[1:0])
Bit4 => scroll down button
Bit5 => scroll up button
Bit6 => scroll left button
Bit7 => scroll right button
Packet 2 (ABSOLUTE POSITION)
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
1 |0|1|V|F|1|1|R|L| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 |r|l|u|d|X|X|Y|Y|
|---------------| |---------------| |---------------| |---------------|
Byte 1: Bit7~Bit6 => 00, Normal data packet
=> 01, Absolute coordination packet
=> 10, Notify packet
Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
When both fingers are up, the last two reports have zero valid
bit.
Bit4 => finger up/down information. 1: finger down, 0: finger up.
Bit3 => 1
Bit2 => finger index, 0 is the first finger, 1 is the second finger.
Bit1 => Right Button, 1 is pressed, 0 is not pressed.
Bit0 => Left Button, 1 is pressed, 0 is not pressed.
Byte 2: X coordinate (xpos[9:2])
Byte 3: Y coordinate (ypos[9:2])
Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
Bit3~Bit2 => X coordinate (ypos[1:0])
Bit4 => scroll down button
Bit5 => scroll up button
Bit6 => scroll left button
Bit7 => scroll right button
Notify Packet for STL3888-B0
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
1 |1|0|1|P|1|M|R|L| 2 |C|C|C|C|C|C|C|C| 3 |0|0|F|F|0|0|0|i| 4 |r|l|u|d|0|0|0|0|
|---------------| |---------------| |---------------| |---------------|
Byte 1: Bit7~Bit6 => 00, Normal data packet
=> 01, Absolute coordination packet
=> 10, Notify packet
Bit5 => 1
Bit4 => when in absolute coordinate mode (valid when EN_PKT_GO is 1):
0: left button is generated by the on-pad command
1: left button is generated by the external button
Bit3 => 1
Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
Bit1 => Right Button, 1 is pressed, 0 is not pressed.
Bit0 => Left Button, 1 is pressed, 0 is not pressed.
Byte 2: Message Type => 0xB7 (Multi Finger, Multi Coordinate mode)
Byte 3: Bit7~Bit6 => Don't care
Bit5~Bit4 => Number of fingers
Bit3~Bit1 => Reserved
Bit0 => 1: enter gesture mode; 0: leaving gesture mode
Byte 4: Bit7 => scroll right button
Bit6 => scroll left button
Bit5 => scroll up button
Bit4 => scroll down button
* Note that if gesture and additional button(Bit4~Bit7)
happen at the same time, the button information will not
be sent.
Bit3~Bit0 => Reserved
Sample sequence of Multi-finger, Multi-coordinate mode:
notify packet (valid bit == 1), abs pkt 1, abs pkt 2, abs pkt 1,
abs pkt 2, ..., notify packet(valid bit == 0)
abs pkt 2, ..., notify packet (valid bit == 0)
==============================================================================
* FSP Enable/Disable packet
......@@ -409,7 +500,8 @@ offset width default r/w name
0: read only, 1: read/write enable
(Note that following registers does not require clock gating being
enabled prior to write: 05 06 07 08 09 0c 0f 10 11 12 16 17 18 23 2e
40 41 42 43.)
40 41 42 43. In addition to that, this bit must be 1 when gesture
mode is enabled)
0x31 RW on-pad command detection
bit7 0 RW on-pad command left button down tag
......@@ -463,6 +555,10 @@ offset width default r/w name
absolute coordinates; otherwise, host only receives packets with
relative coordinate.)
bit7 0 RW EN_PS2_F2: PS/2 gesture mode 2nd
finger packet enable
0: disable, 1: enable
0x43 RW on-pad control
bit0 0 RW on-pad control enable
0: disable, 1: enable
......
Documentation/isdn/INTERFACE.CAPI
浏览文件 @ e02c4fd3
......@@ -149,10 +149,11 @@ char *(*procinfo)(struct capi_ctr *ctrlr)
pointer to a callback function returning the entry for the device in
the CAPI controller info table, /proc/capi/controller
read_proc_t *ctr_read_proc
pointer to the read_proc callback function for the device's proc file
system entry, /proc/capi/controllers/<n>; will be called with a
pointer to the device's capi_ctr structure as the last (data) argument
const struct file_operations *proc_fops
pointers to callback functions for the device's proc file
system entry, /proc/capi/controllers/<n>; pointer to the device's
capi_ctr structure is available from struct proc_dir_entry::data
which is available from struct inode.
Note: Callback functions except send_message() are never called in interrupt
context.
......
Documentation/isdn/README.gigaset
浏览文件 @ e02c4fd3
......@@ -292,10 +292,10 @@ GigaSet 307x Device Driver
to /etc/modprobe.d/gigaset, /etc/modprobe.conf.local or a similar file.
Problem:
Your isdn script aborts with a message about isdnlog.
The isdnlog program emits error messages or just doesn't work.
Solution:
Try deactivating (or commenting out) isdnlog. This driver does not
support it.
Isdnlog supports only the HiSax driver. Do not attempt to use it with
other drivers such as Gigaset.
Problem:
You have two or more DECT data adapters (M101/M105) and only the
......@@ -321,8 +321,8 @@ GigaSet 307x Device Driver
writing an appropriate value to /sys/module/gigaset/parameters/debug, e.g.
echo 0 > /sys/module/gigaset/parameters/debug
switches off debugging output completely,
echo 0x10a020 > /sys/module/gigaset/parameters/debug
enables the standard set of debugging output messages. These values are
echo 0x302020 > /sys/module/gigaset/parameters/debug
enables a reasonable set of debugging output messages. These values are
bit patterns where every bit controls a certain type of debugging output.
See the constants DEBUG_* in the source file gigaset.h for details.
......
Documentation/kernel-parameters.txt
浏览文件 @ e02c4fd3
......@@ -54,6 +54,7 @@ parameter is applicable:
IMA Integrity measurement architecture is enabled.
IOSCHED More than one I/O scheduler is enabled.
IP_PNP IP DHCP, BOOTP, or RARP is enabled.
IPV6 IPv6 support is enabled.
ISAPNP ISA PnP code is enabled.
ISDN Appropriate ISDN support is enabled.
JOY Appropriate joystick support is enabled.
......@@ -356,6 +357,9 @@ and is between 256 and 4096 characters. It is defined in the file
Change the amount of debugging information output
when initialising the APIC and IO-APIC components.
autoconf= [IPV6]
See Documentation/networking/ipv6.txt.
show_lapic= [APIC,X86] Advanced Programmable Interrupt Controller
Limit apic dumping. The parameter defines the maximal
number of local apics being dumped. Also it is possible
......@@ -638,6 +642,12 @@ and is between 256 and 4096 characters. It is defined in the file
See drivers/char/README.epca and
Documentation/serial/digiepca.txt.
disable= [IPV6]
See Documentation/networking/ipv6.txt.
disable_ipv6= [IPV6]
See Documentation/networking/ipv6.txt.
disable_mtrr_cleanup [X86]
The kernel tries to adjust MTRR layout from continuous
to discrete, to make X server driver able to add WB
......@@ -1738,6 +1748,9 @@ and is between 256 and 4096 characters. It is defined in the file
nomfgpt [X86-32] Disable Multi-Function General Purpose
Timer usage (for AMD Geode machines).
nopat [X86] Disable PAT (page attribute table extension of
pagetables) support.
norandmaps Don't use address space randomization. Equivalent to
echo 0 > /proc/sys/kernel/randomize_va_space
......@@ -1948,8 +1961,12 @@ and is between 256 and 4096 characters. It is defined in the file
IRQ routing is enabled.
noacpi [X86] Do not use ACPI for IRQ routing
or for PCI scanning.
use_crs [X86] Use _CRS for PCI resource
allocation.
use_crs [X86] Use PCI host bridge window information
from ACPI. On BIOSes from 2008 or later, this
is enabled by default. If you need to use this,
please report a bug.
nocrs [X86] Ignore PCI host bridge windows from ACPI.
If you need to use this, please report a bug.
routeirq Do IRQ routing for all PCI devices.
This is normally done in pci_enable_device(),
so this option is a temporary workaround
......@@ -1998,6 +2015,14 @@ and is between 256 and 4096 characters. It is defined in the file
force Enable ASPM even on devices that claim not to support it.
WARNING: Forcing ASPM on may cause system lockups.
pcie_pme= [PCIE,PM] Native PCIe PME signaling options:
off Do not use native PCIe PME signaling.
force Use native PCIe PME signaling even if the BIOS refuses
to allow the kernel to control the relevant PCIe config
registers.
nomsi Do not use MSI for native PCIe PME signaling (this makes
all PCIe root ports use INTx for everything).
pcmv= [HW,PCMCIA] BadgePAD 4
pd. [PARIDE]
......@@ -2703,6 +2728,13 @@ and is between 256 and 4096 characters. It is defined in the file
medium is write-protected).
Example: quirks=0419:aaf5:rl,0421:0433:rc
userpte=
[X86] Flags controlling user PTE allocations.
nohigh = do not allocate PTE pages in
HIGHMEM regardless of setting
of CONFIG_HIGHPTE.
vdso= [X86,SH]
vdso=2: enable compat VDSO (default with COMPAT_VDSO)
vdso=1: enable VDSO (default)
......
Documentation/lguest/lguest.c
浏览文件 @ e02c4fd3
......@@ -34,7 +34,6 @@
#include <sys/uio.h>
#include <termios.h>
#include <getopt.h>
#include <zlib.h>
#include <assert.h>
#include <sched.h>
#include <limits.h>
......
Documentation/networking/dccp.txt
浏览文件 @ e02c4fd3
......@@ -58,8 +58,10 @@ DCCP_SOCKOPT_GET_CUR_MPS is read-only and retrieves the current maximum packet
size (application payload size) in bytes, see RFC 4340, section 14.
DCCP_SOCKOPT_AVAILABLE_CCIDS is also read-only and returns the list of CCIDs
supported by the endpoint (see include/linux/dccp.h for symbolic constants).
The caller needs to provide a sufficiently large (> 2) array of type uint8_t.
supported by the endpoint. The option value is an array of type uint8_t whose
size is passed as option length. The minimum array size is 4 elements, the
value returned in the optlen argument always reflects the true number of
built-in CCIDs.
DCCP_SOCKOPT_CCID is write-only and sets both the TX and RX CCIDs at the same
time, combining the operation of the next two socket options. This option is
......
Documentation/networking/ip-sysctl.txt
浏览文件 @ e02c4fd3
......@@ -487,6 +487,30 @@ tcp_dma_copybreak - INTEGER
and CONFIG_NET_DMA is enabled.
Default: 4096
tcp_thin_linear_timeouts - BOOLEAN
Enable dynamic triggering of linear timeouts for thin streams.
If set, a check is performed upon retransmission by timeout to
determine if the stream is thin (less than 4 packets in flight).
As long as the stream is found to be thin, up to 6 linear
timeouts may be performed before exponential backoff mode is
initiated. This improves retransmission latency for
non-aggressive thin streams, often found to be time-dependent.
For more information on thin streams, see
Documentation/networking/tcp-thin.txt
Default: 0
tcp_thin_dupack - BOOLEAN
Enable dynamic triggering of retransmissions after one dupACK
for thin streams. If set, a check is performed upon reception
of a dupACK to determine if the stream is thin (less than 4
packets in flight). As long as the stream is found to be thin,
data is retransmitted on the first received dupACK. This
improves retransmission latency for non-aggressive thin
streams, often found to be time-dependent.
For more information on thin streams, see
Documentation/networking/tcp-thin.txt
Default: 0
UDP variables:
udp_mem - vector of 3 INTEGERs: min, pressure, max
......@@ -692,6 +716,25 @@ proxy_arp - BOOLEAN
conf/{all,interface}/proxy_arp is set to TRUE,
it will be disabled otherwise
proxy_arp_pvlan - BOOLEAN
Private VLAN proxy arp.
Basically allow proxy arp replies back to the same interface
(from which the ARP request/solicitation was received).
This is done to support (ethernet) switch features, like RFC
3069, where the individual ports are NOT allowed to
communicate with each other, but they are allowed to talk to
the upstream router. As described in RFC 3069, it is possible
to allow these hosts to communicate through the upstream
router by proxy_arp'ing. Don't need to be used together with
proxy_arp.
This technology is known by different names:
In RFC 3069 it is called VLAN Aggregation.
Cisco and Allied Telesyn call it Private VLAN.
Hewlett-Packard call it Source-Port filtering or port-isolation.
Ericsson call it MAC-Forced Forwarding (RFC Draft).
shared_media - BOOLEAN
Send(router) or accept(host) RFC1620 shared media redirects.
Overrides ip_secure_redirects.
......@@ -833,9 +876,18 @@ arp_notify - BOOLEAN
or hardware address changes.
arp_accept - BOOLEAN
Define behavior when gratuitous arp replies are received:
0 - drop gratuitous arp frames
1 - accept gratuitous arp frames
Define behavior for gratuitous ARP frames who's IP is not
already present in the ARP table:
0 - don't create new entries in the ARP table
1 - create new entries in the ARP table
Both replies and requests type gratuitous arp will trigger the
ARP table to be updated, if this setting is on.
If the ARP table already contains the IP address of the
gratuitous arp frame, the arp table will be updated regardless
if this setting is on or off.
app_solicit - INTEGER
The maximum number of probes to send to the user space ARP daemon
......
Documentation/networking/ixgbevf.txt 0 → 100755
浏览文件 @ e02c4fd3
Linux* Base Driver for Intel(R) Network Connection
==================================================
November 24, 2009
Contents
========
- In This Release
- Identifying Your Adapter
- Known Issues/Troubleshooting
- Support
In This Release
===============
This file describes the ixgbevf Linux* Base Driver for Intel Network
Connection.
The ixgbevf driver supports 82599-based virtual function devices that can only
be activated on kernels with CONFIG_PCI_IOV enabled.
The ixgbevf driver supports virtual functions generated by the ixgbe driver
with a max_vfs value of 1 or greater.
The guest OS loading the ixgbevf driver must support MSI-X interrupts.
VLANs: There is a limit of a total of 32 shared VLANs to 1 or more VFs.
Identifying Your Adapter
========================
For more information on how to identify your adapter, go to the Adapter &
Driver ID Guide at:
http://support.intel.com/support/network/sb/CS-008441.htm
Known Issues/Troubleshooting
============================
Unloading Physical Function (PF) Driver Causes System Reboots When VM is
Running and VF is Loaded on the VM
------------------------------------------------------------------------
Do not unload the PF driver (ixgbe) while VFs are assigned to guests.
Support
=======
For general information, go to the Intel support website at:
http://support.intel.com
or the Intel Wired Networking project hosted by Sourceforge at:
http://sourceforge.net/projects/e1000
If an issue is identified with the released source code on the supported
kernel with a supported adapter, email the specific information related
to the issue to e1000-devel@lists.sf.net
License
=======
Intel 10 Gigabit Linux driver.
Copyright(c) 1999 - 2009 Intel Corporation.
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
Trademarks
==========
Intel, Itanium, and Pentium are trademarks or registered trademarks of
Intel Corporation or its subsidiaries in the United States and other
countries.
* Other names and brands may be claimed as the property of others.
Documentation/networking/packet_mmap.txt
浏览文件 @ e02c4fd3
......@@ -2,7 +2,7 @@
+ ABSTRACT
--------------------------------------------------------------------------------
This file documents the CONFIG_PACKET_MMAP option available with the PACKET
This file documents the mmap() facility available with the PACKET
socket interface on 2.4 and 2.6 kernels. This type of sockets is used for
capture network traffic with utilities like tcpdump or any other that needs
raw access to network interface.
......@@ -44,7 +44,7 @@ enabled. For transmission, check the MTU (Maximum Transmission Unit) used and
supported by devices of your network.
--------------------------------------------------------------------------------
+ How to use CONFIG_PACKET_MMAP to improve capture process
+ How to use mmap() to improve capture process
--------------------------------------------------------------------------------
From the user standpoint, you should use the higher level libpcap library, which
......@@ -64,7 +64,7 @@ the low level details or want to improve libpcap by including PACKET_MMAP
support.
--------------------------------------------------------------------------------
+ How to use CONFIG_PACKET_MMAP directly to improve capture process
+ How to use mmap() directly to improve capture process
--------------------------------------------------------------------------------
From the system calls stand point, the use of PACKET_MMAP involves
......@@ -105,7 +105,7 @@ also the mapping of the circular buffer in the user process and
the use of this buffer.
--------------------------------------------------------------------------------
+ How to use CONFIG_PACKET_MMAP directly to improve transmission process
+ How to use mmap() directly to improve transmission process
--------------------------------------------------------------------------------
Transmission process is similar to capture as shown below.
......
Documentation/networking/regulatory.txt
浏览文件 @ e02c4fd3
......@@ -188,3 +188,27 @@ Then in some part of your code after your wiphy has been registered:
&mydriver_jp_regdom.reg_rules[i],
sizeof(struct ieee80211_reg_rule));
regulatory_struct_hint(rd);
Statically compiled regulatory database
---------------------------------------
In most situations the userland solution using CRDA as described
above is the preferred solution. However in some cases a set of
rules built into the kernel itself may be desirable. To account
for this situation, a configuration option has been provided
(i.e. CONFIG_CFG80211_INTERNAL_REGDB). With this option enabled,
the wireless database information contained in net/wireless/db.txt is
used to generate a data structure encoded in net/wireless/regdb.c.
That option also enables code in net/wireless/reg.c which queries
the data in regdb.c as an alternative to using CRDA.
The file net/wireless/db.txt should be kept up-to-date with the db.txt
file available in the git repository here:
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-regdb.git
Again, most users in most situations should be using the CRDA package
provided with their distribution, and in most other situations users
should be building and using CRDA on their own rather than using
this option. If you are not absolutely sure that you should be using
CONFIG_CFG80211_INTERNAL_REGDB then _DO_NOT_USE_IT_.
Documentation/networking/tcp-thin.txt 0 → 100644
浏览文件 @ e02c4fd3
Thin-streams and TCP
====================
A wide range of Internet-based services that use reliable transport
protocols display what we call thin-stream properties. This means
that the application sends data with such a low rate that the
retransmission mechanisms of the transport protocol are not fully
effective. In time-dependent scenarios (like online games, control
systems, stock trading etc.) where the user experience depends
on the data delivery latency, packet loss can be devastating for
the service quality. Extreme latencies are caused by TCP's
dependency on the arrival of new data from the application to trigger
retransmissions effectively through fast retransmit instead of
waiting for long timeouts.
After analysing a large number of time-dependent interactive
applications, we have seen that they often produce thin streams
and also stay with this traffic pattern throughout its entire
lifespan. The combination of time-dependency and the fact that the
streams provoke high latencies when using TCP is unfortunate.
In order to reduce application-layer latency when packets are lost,
a set of mechanisms has been made, which address these latency issues
for thin streams. In short, if the kernel detects a thin stream,
the retransmission mechanisms are modified in the following manner:
1) If the stream is thin, fast retransmit on the first dupACK.
2) If the stream is thin, do not apply exponential backoff.
These enhancements are applied only if the stream is detected as
thin. This is accomplished by defining a threshold for the number
of packets in flight. If there are less than 4 packets in flight,
fast retransmissions can not be triggered, and the stream is prone
to experience high retransmission latencies.
Since these mechanisms are targeted at time-dependent applications,
they must be specifically activated by the application using the
TCP_THIN_LINEAR_TIMEOUTS and TCP_THIN_DUPACK IOCTLS or the
tcp_thin_linear_timeouts and tcp_thin_dupack sysctls. Both
modifications are turned off by default.
References
==========
More information on the modifications, as well as a wide range of
experimental data can be found here:
"Improving latency for interactive, thin-stream applications over
reliable transport"
http://simula.no/research/nd/publications/Simula.nd.477/simula_pdf_file
Documentation/pcmcia/locking.txt 0 → 100644
浏览文件 @ e02c4fd3
This file explains the locking and exclusion scheme used in the PCCARD
and PCMCIA subsystems.
A) Overview, Locking Hierarchy:
===============================
pcmcia_socket_list_rwsem - protects only the list of sockets
- skt_mutex - serializes card insert / ejection
- ops_mutex - serializes socket operation
B) Exclusion
============
The following functions and callbacks to struct pcmcia_socket must
be called with "skt_mutex" held:
socket_detect_change()
send_event()
socket_reset()
socket_shutdown()
socket_setup()
socket_remove()
socket_insert()
socket_early_resume()
socket_late_resume()
socket_resume()
socket_suspend()
struct pcmcia_callback *callback
The following functions and callbacks to struct pcmcia_socket must
be called with "ops_mutex" held:
socket_reset()
socket_setup()
struct pccard_operations *ops
struct pccard_resource_ops *resource_ops;
Note that send_event() and struct pcmcia_callback *callback must not be
called with "ops_mutex" held.
C) Protection
=============
1. Global Data:
---------------
struct list_head pcmcia_socket_list;
protected by pcmcia_socket_list_rwsem;
2. Per-Socket Data:
-------------------
The resource_ops and their data are protected by ops_mutex.
The "main" struct pcmcia_socket is protected as follows (read-only fields
or single-use fields not mentioned):
- by pcmcia_socket_list_rwsem:
struct list_head socket_list;
- by thread_lock:
unsigned int thread_events;
- by skt_mutex:
u_int suspended_state;
void (*tune_bridge);
struct pcmcia_callback *callback;
int resume_status;
- by ops_mutex:
socket_state_t socket;
u_int state;
u_short lock_count;
pccard_mem_map cis_mem;
void __iomem *cis_virt;
struct { } irq;
io_window_t io[];
pccard_mem_map win[];
struct list_head cis_cache;
size_t fake_cis_len;
u8 *fake_cis;
u_int irq_mask;
void (*zoom_video);
int (*power_hook);
u8 resource...;
struct list_head devices_list;
u8 device_count;
struct pcmcia_state;
3. Per PCMCIA-device Data:
--------------------------
The "main" struct pcmcia_devie is protected as follows (read-only fields
or single-use fields not mentioned):
- by pcmcia_socket->ops_mutex:
struct list_head socket_device_list;
struct config_t *function_config;
u16 _irq:1;
u16 _io:1;
u16 _win:4;
u16 _locked:1;
u16 allow_func_id_match:1;
u16 suspended:1;
u16 _removed:1;
- by the PCMCIA driver:
io_req_t io;
irq_req_t irq;
config_req_t conf;
window_handle_t win;
Documentation/powerpc/dts-bindings/fsl/can.txt 0 → 100644
浏览文件 @ e02c4fd3
CAN Device Tree Bindings
------------------------
(c) 2006-2009 Secret Lab Technologies Ltd
Grant Likely <grant.likely@secretlab.ca>
fsl,mpc5200-mscan nodes
-----------------------
In addition to the required compatible-, reg- and interrupt-properties, you can
also specify which clock source shall be used for the controller:
- fsl,mscan-clock-source : a string describing the clock source. Valid values
are: "ip" for ip bus clock
"ref" for reference clock (XTAL)
"ref" is default in case this property is not
present.
fsl,mpc5121-mscan nodes
-----------------------
In addition to the required compatible-, reg- and interrupt-properties, you can
also specify which clock source and divider shall be used for the controller:
- fsl,mscan-clock-source : a string describing the clock source. Valid values
are: "ip" for ip bus clock
"ref" for reference clock
"sys" for system clock
If this property is not present, an optimal CAN
clock source and frequency based on the system
clock will be selected. If this is not possible,
the reference clock will be used.
- fsl,mscan-clock-divider: for the reference and system clock, an additional
clock divider can be specified. By default, a
value of 1 is used.
Note that the MPC5121 Rev. 1 processor is not supported.
Examples:
can@1300 {
compatible = "fsl,mpc5121-mscan";
interrupts = <12 0x8>;
interrupt-parent = <&ipic>;
reg = <0x1300 0x80>;
};
can@1380 {
compatible = "fsl,mpc5121-mscan";
interrupts = <13 0x8>;
interrupt-parent = <&ipic>;
reg = <0x1380 0x80>;
fsl,mscan-clock-source = "ref";
fsl,mscan-clock-divider = <3>;
};
Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt 0 → 100644
浏览文件 @ e02c4fd3
MPC5121 PSC Device Tree Bindings
PSC in UART mode
----------------
For PSC in UART mode the needed PSC serial devices
are specified by fsl,mpc5121-psc-uart nodes in the
fsl,mpc5121-immr SoC node. Additionally the PSC FIFO
Controller node fsl,mpc5121-psc-fifo is requered there:
fsl,mpc5121-psc-uart nodes
--------------------------
Required properties :
- compatible : Should contain "fsl,mpc5121-psc-uart" and "fsl,mpc5121-psc"
- cell-index : Index of the PSC in hardware
- reg : Offset and length of the register set for the PSC device
- interrupts : <a b> where a is the interrupt number of the
PSC FIFO Controller and b is a field that represents an
encoding of the sense and level information for the interrupt.
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
Recommended properties :
- fsl,rx-fifo-size : the size of the RX fifo slice (a multiple of 4)
- fsl,tx-fifo-size : the size of the TX fifo slice (a multiple of 4)
fsl,mpc5121-psc-fifo node
-------------------------
Required properties :
- compatible : Should be "fsl,mpc5121-psc-fifo"
- reg : Offset and length of the register set for the PSC
FIFO Controller
- interrupts : <a b> where a is the interrupt number of the
PSC FIFO Controller and b is a field that represents an
encoding of the sense and level information for the interrupt.
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
Example for a board using PSC0 and PSC1 devices in serial mode:
serial@11000 {
compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
cell-index = <0>;
reg = <0x11000 0x100>;
interrupts = <40 0x8>;
interrupt-parent = < &ipic >;
fsl,rx-fifo-size = <16>;
fsl,tx-fifo-size = <16>;
};
serial@11100 {
compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
cell-index = <1>;
reg = <0x11100 0x100>;
interrupts = <40 0x8>;
interrupt-parent = < &ipic >;
fsl,rx-fifo-size = <16>;
fsl,tx-fifo-size = <16>;
};
pscfifo@11f00 {
compatible = "fsl,mpc5121-psc-fifo";
reg = <0x11f00 0x100>;
interrupts = <40 0x8>;
interrupt-parent = < &ipic >;
};
Documentation/powerpc/dts-bindings/fsl/mpc5200.txt
浏览文件 @ e02c4fd3
......@@ -195,11 +195,4 @@ External interrupts:
fsl,mpc5200-mscan nodes
-----------------------
In addition to the required compatible-, reg- and interrupt-properites, you can
also specify which clock source shall be used for the controller:
- fsl,mscan-clock-source- a string describing the clock source. Valid values
are: "ip" for ip bus clock
"ref" for reference clock (XTAL)
"ref" is default in case this property is not
present.
See file can.txt in this directory.
Documentation/powerpc/dts-bindings/fsl/spi.txt
浏览文件 @ e02c4fd3
......@@ -13,6 +13,11 @@ Required properties:
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
Optional properties:
- gpios : specifies the gpio pins to be used for chipselects.
The gpios will be referred to as reg = <index> in the SPI child nodes.
If unspecified, a single SPI device without a chip select can be used.
Example:
spi@4c0 {
cell-index = <0>;
......@@ -21,4 +26,6 @@ Example:
interrupts = <82 0>;
interrupt-parent = <700>;
mode = "cpu";
gpios = <&gpio 18 1 // device reg=<0>
&gpio 19 1>; // device reg=<1>
};
Documentation/powerpc/ptrace.txt 0 → 100644
浏览文件 @ e02c4fd3
GDB intends to support the following hardware debug features of BookE
processors:
4 hardware breakpoints (IAC)
2 hardware watchpoints (read, write and read-write) (DAC)
2 value conditions for the hardware watchpoints (DVC)
For that, we need to extend ptrace so that GDB can query and set these
resources. Since we're extending, we're trying to create an interface
that's extendable and that covers both BookE and server processors, so
that GDB doesn't need to special-case each of them. We added the
following 3 new ptrace requests.
1. PTRACE_PPC_GETHWDEBUGINFO
Query for GDB to discover the hardware debug features. The main info to
be returned here is the minimum alignment for the hardware watchpoints.
BookE processors don't have restrictions here, but server processors have
an 8-byte alignment restriction for hardware watchpoints. We'd like to avoid
adding special cases to GDB based on what it sees in AUXV.
Since we're at it, we added other useful info that the kernel can return to
GDB: this query will return the number of hardware breakpoints, hardware
watchpoints and whether it supports a range of addresses and a condition.
The query will fill the following structure provided by the requesting process:
struct ppc_debug_info {
unit32_t version;
unit32_t num_instruction_bps;
unit32_t num_data_bps;
unit32_t num_condition_regs;
unit32_t data_bp_alignment;
unit32_t sizeof_condition; /* size of the DVC register */
uint64_t features; /* bitmask of the individual flags */
};
features will have bits indicating whether there is support for:
#define PPC_DEBUG_FEATURE_INSN_BP_RANGE 0x1
#define PPC_DEBUG_FEATURE_INSN_BP_MASK 0x2
#define PPC_DEBUG_FEATURE_DATA_BP_RANGE 0x4
#define PPC_DEBUG_FEATURE_DATA_BP_MASK 0x8
2. PTRACE_SETHWDEBUG
Sets a hardware breakpoint or watchpoint, according to the provided structure:
struct ppc_hw_breakpoint {
uint32_t version;
#define PPC_BREAKPOINT_TRIGGER_EXECUTE 0x1
#define PPC_BREAKPOINT_TRIGGER_READ 0x2
#define PPC_BREAKPOINT_TRIGGER_WRITE 0x4
uint32_t trigger_type; /* only some combinations allowed */
#define PPC_BREAKPOINT_MODE_EXACT 0x0
#define PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE 0x1
#define PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE 0x2
#define PPC_BREAKPOINT_MODE_MASK 0x3
uint32_t addr_mode; /* address match mode */
#define PPC_BREAKPOINT_CONDITION_MODE 0x3
#define PPC_BREAKPOINT_CONDITION_NONE 0x0
#define PPC_BREAKPOINT_CONDITION_AND 0x1
#define PPC_BREAKPOINT_CONDITION_EXACT 0x1 /* different name for the same thing as above */
#define PPC_BREAKPOINT_CONDITION_OR 0x2
#define PPC_BREAKPOINT_CONDITION_AND_OR 0x3
#define PPC_BREAKPOINT_CONDITION_BE_ALL 0x00ff0000 /* byte enable bits */
#define PPC_BREAKPOINT_CONDITION_BE(n) (1<<((n)+16))
uint32_t condition_mode; /* break/watchpoint condition flags */
uint64_t addr;
uint64_t addr2;
uint64_t condition_value;
};
A request specifies one event, not necessarily just one register to be set.
For instance, if the request is for a watchpoint with a condition, both the
DAC and DVC registers will be set in the same request.
With this GDB can ask for all kinds of hardware breakpoints and watchpoints
that the BookE supports. COMEFROM breakpoints available in server processors
are not contemplated, but that is out of the scope of this work.
ptrace will return an integer (handle) uniquely identifying the breakpoint or
watchpoint just created. This integer will be used in the PTRACE_DELHWDEBUG
request to ask for its removal. Return -ENOSPC if the requested breakpoint
can't be allocated on the registers.
Some examples of using the structure to:
- set a breakpoint in the first breakpoint register
p.version = PPC_DEBUG_CURRENT_VERSION;
p.trigger_type = PPC_BREAKPOINT_TRIGGER_EXECUTE;
p.addr_mode = PPC_BREAKPOINT_MODE_EXACT;
p.condition_mode = PPC_BREAKPOINT_CONDITION_NONE;
p.addr = (uint64_t) address;
p.addr2 = 0;
p.condition_value = 0;
- set a watchpoint which triggers on reads in the second watchpoint register
p.version = PPC_DEBUG_CURRENT_VERSION;
p.trigger_type = PPC_BREAKPOINT_TRIGGER_READ;
p.addr_mode = PPC_BREAKPOINT_MODE_EXACT;
p.condition_mode = PPC_BREAKPOINT_CONDITION_NONE;
p.addr = (uint64_t) address;
p.addr2 = 0;
p.condition_value = 0;
- set a watchpoint which triggers only with a specific value
p.version = PPC_DEBUG_CURRENT_VERSION;
p.trigger_type = PPC_BREAKPOINT_TRIGGER_READ;
p.addr_mode = PPC_BREAKPOINT_MODE_EXACT;
p.condition_mode = PPC_BREAKPOINT_CONDITION_AND | PPC_BREAKPOINT_CONDITION_BE_ALL;
p.addr = (uint64_t) address;
p.addr2 = 0;
p.condition_value = (uint64_t) condition;
- set a ranged hardware breakpoint
p.version = PPC_DEBUG_CURRENT_VERSION;
p.trigger_type = PPC_BREAKPOINT_TRIGGER_EXECUTE;
p.addr_mode = PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE;
p.condition_mode = PPC_BREAKPOINT_CONDITION_NONE;
p.addr = (uint64_t) begin_range;
p.addr2 = (uint64_t) end_range;
p.condition_value = 0;
3. PTRACE_DELHWDEBUG
Takes an integer which identifies an existing breakpoint or watchpoint
(i.e., the value returned from PTRACE_SETHWDEBUG), and deletes the
corresponding breakpoint or watchpoint..
Documentation/s390/CommonIO
浏览文件 @ e02c4fd3
......@@ -87,6 +87,12 @@ Command line parameters
compatibility, by the device number in hexadecimal (0xabcd or abcd). Device
numbers given as 0xabcd will be interpreted as 0.0.abcd.
* /proc/cio_settle
A write request to this file is blocked until all queued cio actions are
handled. This will allow userspace to wait for pending work affecting
device availability after changing cio_ignore or the hardware configuration.
* For some of the information present in the /proc filesystem in 2.4 (namely,
/proc/subchannels and /proc/chpids), see driver-model.txt.
Information formerly in /proc/irq_count is now in /proc/interrupts.
......
Documentation/s390/driver-model.txt
浏览文件 @ e02c4fd3
......@@ -223,8 +223,8 @@ touched by the driver - it should use the ccwgroup device's driver_data for its
private data.
To implement a ccwgroup driver, please refer to include/asm/ccwgroup.h. Keep in
mind that most drivers will need to implement both a ccwgroup and a ccw driver
(unless you have a meta ccw driver, like cu3088 for lcs and ctc).
mind that most drivers will need to implement both a ccwgroup and a ccw
driver.
2. Channel paths
......
Documentation/scsi/ChangeLog.megaraid_sas
浏览文件 @ e02c4fd3
1 Release Date : Thur. Oct 29, 2009 09:12:45 PST 2009 -
(emaild-id:megaraidlinux@lsi.com)
Bo Yang
2 Current Version : 00.00.04.17.1-rc1
3 Older Version : 00.00.04.12
1. Add the pad_0 in mfi frame structure to 0 to fix the
context value larger than 32bit value issue.
2. Add the logic drive list to the driver. Driver will
keep the logic drive list internal after driver load.
3. driver fixed the device update issue after get the AEN
PD delete/ADD, LD add/delete from FW.
1 Release Date : Tues. July 28, 2009 10:12:45 PST 2009 -
(emaild-id:megaraidlinux@lsi.com)
Bo Yang
......
Documentation/sound/alsa/ALSA-Configuration.txt
浏览文件 @ e02c4fd3
......@@ -482,6 +482,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
reference_rate - reference sample rate, 44100 or 48000 (default)
multiple - multiple to ref. sample rate, 1 or 2 (default)
subsystem - override the PCI SSID for probing; the value
consists of SSVID << 16 | SSDID. The default is
zero, which means no override.
This module supports multiple cards.
......@@ -1123,6 +1126,21 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
This module supports multiple cards, autoprobe and ISA PnP.
Module snd-jazz16
-------------------
Module for Media Vision Jazz16 chipset. The chipset consists of 3 chips:
MVD1216 + MVA416 + MVA514.
port - port # for SB DSP chip (0x210,0x220,0x230,0x240,0x250,0x260)
irq - IRQ # for SB DSP chip (3,5,7,9,10,15)
dma8 - DMA # for SB DSP chip (1,3)
dma16 - DMA # for SB DSP chip (5,7)
mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
mpu_irq - MPU-401 irq # (2,3,5,7)
This module supports multiple cards.
Module snd-korg1212
-------------------
......@@ -1791,6 +1809,13 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
The power-management is supported.
Module snd-ua101
----------------
Module for the Edirol UA-101 audio/MIDI interface.
This module supports multiple devices, autoprobe and hotplugging.
Module snd-usb-audio
--------------------
......@@ -1923,7 +1948,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
-------------------
Module for sound cards based on the Asus AV100/AV200 chips,
i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), Essence ST
i.e., Xonar D1, DX, D2, D2X, DS, HDAV1.3 (Deluxe), Essence ST
(Deluxe) and Essence STX.
This module supports autoprobe and multiple cards.
......
Documentation/sound/alsa/HD-Audio-Models.txt
浏览文件 @ e02c4fd3
......@@ -124,6 +124,8 @@ ALC882/883/885/888/889
asus-a7m ASUS A7M
macpro MacPro support
mb5 Macbook 5,1
macmini3 Macmini 3,1
mba21 Macbook Air 2,1
mbp3 Macbook Pro rev3
imac24 iMac 24'' with jack detection
imac91 iMac 9,1
......@@ -279,13 +281,16 @@ Conexant 5051
laptop Basic Laptop config (default)
hp HP Spartan laptop
hp-dv6736 HP dv6736
hp-f700 HP Compaq Presario F700
lenovo-x200 Lenovo X200 laptop
toshiba Toshiba Satellite M300
Conexant 5066
=============
laptop Basic Laptop config (default)
dell-laptop Dell laptops
olpc-xo-1_5 OLPC XO 1.5
ideapad Lenovo IdeaPad U150
STAC9200
========
......
Documentation/sound/alsa/HD-Audio.txt
浏览文件 @ e02c4fd3
......@@ -452,6 +452,33 @@ Similarly, the lines after `[verb]` are parsed as `init_verbs`
sysfs entries, and the lines after `[hint]` are parsed as `hints`
sysfs entries, respectively.
Another example to override the codec vendor id from 0x12345678 to
0xdeadbeef is like below:
------------------------------------------------------------------------
[codec]
0x12345678 0xabcd1234 2
[vendor_id]
0xdeadbeef
------------------------------------------------------------------------
In the similar way, you can override the codec subsystem_id via
`[subsystem_id]`, the revision id via `[revision_id]` line.
Also, the codec chip name can be rewritten via `[chip_name]` line.
------------------------------------------------------------------------
[codec]
0x12345678 0xabcd1234 2
[subsystem_id]
0xffff1111
[revision_id]
0x10
[chip_name]
My-own NEWS-0002
------------------------------------------------------------------------
The hd-audio driver reads the file via request_firmware(). Thus,
a patch file has to be located on the appropriate firmware path,
typically, /lib/firmware. For example, when you pass the option
......
Documentation/trace/kprobetrace.txt
浏览文件 @ e02c4fd3
......@@ -24,6 +24,7 @@ Synopsis of kprobe_events
-------------------------
p[:[GRP/]EVENT] SYMBOL[+offs]|MEMADDR [FETCHARGS] : Set a probe
r[:[GRP/]EVENT] SYMBOL[+0] [FETCHARGS] : Set a return probe
-:[GRP/]EVENT : Clear a probe
GRP : Group name. If omitted, use "kprobes" for it.
EVENT : Event name. If omitted, the event name is generated
......@@ -37,15 +38,12 @@ Synopsis of kprobe_events
@SYM[+|-offs] : Fetch memory at SYM +|- offs (SYM should be a data symbol)
$stackN : Fetch Nth entry of stack (N >= 0)
$stack : Fetch stack address.
$argN : Fetch function argument. (N >= 0)(*)
$retval : Fetch return value.(**)
+|-offs(FETCHARG) : Fetch memory at FETCHARG +|- offs address.(***)
$retval : Fetch return value.(*)
+|-offs(FETCHARG) : Fetch memory at FETCHARG +|- offs address.(**)
NAME=FETCHARG: Set NAME as the argument name of FETCHARG.
(*) aN may not correct on asmlinkaged functions and at the middle of
function body.
(**) only for return probe.
(***) this is useful for fetching a field of data structures.
(*) only for return probe.
(**) this is useful for fetching a field of data structures.
Per-Probe Event Filtering
......@@ -82,13 +80,16 @@ Usage examples
To add a probe as a new event, write a new definition to kprobe_events
as below.
echo p:myprobe do_sys_open dfd=$arg0 filename=$arg1 flags=$arg2 mode=$arg3 > /sys/kernel/debug/tracing/kprobe_events
echo 'p:myprobe do_sys_open dfd=%ax filename=%dx flags=%cx mode=+4($stack)' > /sys/kernel/debug/tracing/kprobe_events
This sets a kprobe on the top of do_sys_open() function with recording
1st to 4th arguments as "myprobe" event. As this example shows, users can
choose more familiar names for each arguments.
1st to 4th arguments as "myprobe" event. Note, which register/stack entry is
assigned to each function argument depends on arch-specific ABI. If you unsure
the ABI, please try to use probe subcommand of perf-tools (you can find it
under tools/perf/).
As this example shows, users can choose more familiar names for each arguments.
echo r:myretprobe do_sys_open $retval >> /sys/kernel/debug/tracing/kprobe_events
echo 'r:myretprobe do_sys_open $retval' >> /sys/kernel/debug/tracing/kprobe_events
This sets a kretprobe on the return point of do_sys_open() function with
recording return value as "myretprobe" event.
......@@ -97,23 +98,24 @@ recording return value as "myretprobe" event.
cat /sys/kernel/debug/tracing/events/kprobes/myprobe/format
name: myprobe
ID: 75
ID: 780
format:
field:unsigned short common_type; offset:0; size:2;
field:unsigned char common_flags; offset:2; size:1;
field:unsigned char common_preempt_count; offset:3; size:1;
field:int common_pid; offset:4; size:4;
field:int common_tgid; offset:8; size:4;
field:unsigned short common_type; offset:0; size:2; signed:0;
field:unsigned char common_flags; offset:2; size:1; signed:0;
field:unsigned char common_preempt_count; offset:3; size:1;signed:0;
field:int common_pid; offset:4; size:4; signed:1;
field:int common_lock_depth; offset:8; size:4; signed:1;
field: unsigned long ip; offset:16;tsize:8;
field: int nargs; offset:24;tsize:4;
field: unsigned long dfd; offset:32;tsize:8;
field: unsigned long filename; offset:40;tsize:8;
field: unsigned long flags; offset:48;tsize:8;
field: unsigned long mode; offset:56;tsize:8;
field:unsigned long __probe_ip; offset:12; size:4; signed:0;
field:int __probe_nargs; offset:16; size:4; signed:1;
field:unsigned long dfd; offset:20; size:4; signed:0;
field:unsigned long filename; offset:24; size:4; signed:0;
field:unsigned long flags; offset:28; size:4; signed:0;
field:unsigned long mode; offset:32; size:4; signed:0;
print fmt: "(%lx) dfd=%lx filename=%lx flags=%lx mode=%lx", REC->ip, REC->dfd, REC->filename, REC->flags, REC->mode
print fmt: "(%lx) dfd=%lx filename=%lx flags=%lx mode=%lx", REC->__probe_ip,
REC->dfd, REC->filename, REC->flags, REC->mode
You can see that the event has 4 arguments as in the expressions you specified.
......@@ -121,6 +123,12 @@ print fmt: "(%lx) dfd=%lx filename=%lx flags=%lx mode=%lx", REC->ip, REC->dfd, R
This clears all probe points.
Or,
echo -:myprobe >> kprobe_events
This clears probe points selectively.
Right after definition, each event is disabled by default. For tracing these
events, you need to enable it.
......@@ -146,4 +154,3 @@ events, you need to enable it.
returns from SYMBOL(e.g. "sys_open+0x1b/0x1d <- do_sys_open" means kernel
returns from do_sys_open to sys_open+0x1b).
Documentation/video4linux/CARDLIST.cx23885
浏览文件 @ e02c4fd3
......@@ -26,3 +26,4 @@
25 -> Compro VideoMate E800 [1858:e800]
26 -> Hauppauge WinTV-HVR1290 [0070:8551]
27 -> Mygica X8558 PRO DMB-TH [14f1:8578]
28 -> LEADTEK WinFast PxTV1200 [107d:6f22]
Documentation/video4linux/CARDLIST.saa7134
浏览文件 @ e02c4fd3
......@@ -174,3 +174,4 @@
173 -> Zolid Hybrid TV Tuner PCI [1131:2004]
174 -> Asus Europa Hybrid OEM [1043:4847]
175 -> Leadtek Winfast DTV1000S [107d:6655]
176 -> Beholder BeholdTV 505 RDS [0000:5051]
Documentation/video4linux/CARDLIST.tuner
浏览文件 @ e02c4fd3
......@@ -81,3 +81,4 @@ tuner=80 - Philips FQ1216LME MK3 PAL/SECAM w/active loopthrough
tuner=81 - Partsnic (Daewoo) PTI-5NF05
tuner=82 - Philips CU1216L
tuner=83 - NXP TDA18271
tuner=84 - Sony BTF-Pxn01Z
Documentation/video4linux/README.tlg2300 0 → 100644
浏览文件 @ e02c4fd3
tlg2300 release notes
====================
This is a v4l2/dvb device driver for the tlg2300 chip.
current status
==============
video
- support mmap and read().(no overlay)
audio
- The driver will register a ALSA card for the audio input.
vbi
- Works for almost TV norms.
dvb-t
- works for DVB-T
FM
- Works for radio.
---------------------------------------------------------------------------
TESTED APPLICATIONS:
-VLC1.0.4 test the video and dvb. The GUI is friendly to use.
-Mplayer test the video.
-Mplayer test the FM. The mplayer should be compiled with --enable-radio and
--enable-radio-capture.
The command runs as this(The alsa audio registers to card 1):
#mplayer radio://103.7/capture/ -radio adevice=hw=1,0:arate=48000 \
-rawaudio rate=48000:channels=2
---------------------------------------------------------------------------
KNOWN PROBLEMS:
about preemphasis:
You can set the preemphasis for radio by the following command:
#v4l2-ctl -d /dev/radio0 --set-ctrl=pre_emphasis_settings=1
"pre_emphasis_settings=1" means that you select the 50us. If you want
to select the 75us, please use "pre_emphasis_settings=2"
Documentation/video4linux/gspca.txt
浏览文件 @ e02c4fd3
......@@ -42,6 +42,7 @@ ov519 041e:4064 Creative Live! VISTA VF0420
ov519 041e:4067 Creative Live! Cam Video IM (VF0350)
ov519 041e:4068 Creative Live! VISTA VF0470
spca561 0458:7004 Genius VideoCAM Express V2
sn9c2028 0458:7005 Genius Smart 300, version 2
sunplus 0458:7006 Genius Dsc 1.3 Smart
zc3xx 0458:7007 Genius VideoCam V2
zc3xx 0458:700c Genius VideoCam V3
......@@ -109,6 +110,7 @@ sunplus 04a5:3003 Benq DC 1300
sunplus 04a5:3008 Benq DC 1500
sunplus 04a5:300a Benq DC 3410
spca500 04a5:300c Benq DC 1016
benq 04a5:3035 Benq DC E300
finepix 04cb:0104 Fujifilm FinePix 4800
finepix 04cb:0109 Fujifilm FinePix A202
finepix 04cb:010b Fujifilm FinePix A203
......@@ -142,6 +144,7 @@ sunplus 04fc:5360 Sunplus Generic
spca500 04fc:7333 PalmPixDC85
sunplus 04fc:ffff Pure DigitalDakota
spca501 0506:00df 3Com HomeConnect Lite
sunplus 052b:1507 Megapixel 5 Pretec DC-1007
sunplus 052b:1513 Megapix V4
sunplus 052b:1803 MegaImage VI
tv8532 0545:808b Veo Stingray
......@@ -151,6 +154,7 @@ sunplus 0546:3191 Polaroid Ion 80
sunplus 0546:3273 Polaroid PDC2030
ov519 054c:0154 Sonny toy4
ov519 054c:0155 Sonny toy5
cpia1 0553:0002 CPIA CPiA (version1) based cameras
zc3xx 055f:c005 Mustek Wcam300A
spca500 055f:c200 Mustek Gsmart 300
sunplus 055f:c211 Kowa Bs888e Microcamera
......@@ -188,8 +192,7 @@ spca500 06bd:0404 Agfa CL20
spca500 06be:0800 Optimedia
sunplus 06d6:0031 Trust 610 LCD PowerC@m Zoom
spca506 06e1:a190 ADS Instant VCD
ov534 06f8:3002 Hercules Blog Webcam
ov534 06f8:3003 Hercules Dualpix HD Weblog
ov534_9 06f8:3003 Hercules Dualpix HD Weblog
sonixj 06f8:3004 Hercules Classic Silver
sonixj 06f8:3008 Hercules Deluxe Optical Glass
pac7302 06f8:3009 Hercules Classic Link
......@@ -204,6 +207,7 @@ sunplus 0733:2221 Mercury Digital Pro 3.1p
sunplus 0733:3261 Concord 3045 spca536a
sunplus 0733:3281 Cyberpix S550V
spca506 0734:043b 3DeMon USB Capture aka
cpia1 0813:0001 QX3 camera
ov519 0813:0002 Dual Mode USB Camera Plus
spca500 084d:0003 D-Link DSC-350
spca500 08ca:0103 Aiptek PocketDV
......@@ -225,7 +229,8 @@ sunplus 08ca:2050 Medion MD 41437
sunplus 08ca:2060 Aiptek PocketDV5300
tv8532 0923:010f ICM532 cams
mars 093a:050f Mars-Semi Pc-Camera
mr97310a 093a:010f Sakar Digital no. 77379
mr97310a 093a:010e All known CIF cams with this ID
mr97310a 093a:010f All known VGA cams with this ID
pac207 093a:2460 Qtec Webcam 100
pac207 093a:2461 HP Webcam
pac207 093a:2463 Philips SPC 220 NC
......@@ -302,6 +307,7 @@ sonixj 0c45:613b Surfer SN-206
sonixj 0c45:613c Sonix Pccam168
sonixj 0c45:6143 Sonix Pccam168
sonixj 0c45:6148 Digitus DA-70811/ZSMC USB PC Camera ZS211/Microdia
sonixj 0c45:614a Frontech E-Ccam (JIL-2225)
sn9c20x 0c45:6240 PC Camera (SN9C201 + MT9M001)
sn9c20x 0c45:6242 PC Camera (SN9C201 + MT9M111)
sn9c20x 0c45:6248 PC Camera (SN9C201 + OV9655)
......@@ -324,6 +330,10 @@ sn9c20x 0c45:62b0 PC Camera (SN9C202 + MT9V011/MT9V111/MT9V112)
sn9c20x 0c45:62b3 PC Camera (SN9C202 + OV9655)
sn9c20x 0c45:62bb PC Camera (SN9C202 + OV7660)
sn9c20x 0c45:62bc PC Camera (SN9C202 + HV7131R)
sn9c2028 0c45:8001 Wild Planet Digital Spy Camera
sn9c2028 0c45:8003 Sakar #11199, #6637x, #67480 keychain cams
sn9c2028 0c45:8008 Mini-Shotz ms-350
sn9c2028 0c45:800a Vivitar Vivicam 3350B
sunplus 0d64:0303 Sunplus FashionCam DXG
ov519 0e96:c001 TRUST 380 USB2 SPACEC@M
etoms 102c:6151 Qcam Sangha CIF
......@@ -341,10 +351,11 @@ spca501 1776:501c Arowana 300K CMOS Camera
t613 17a1:0128 TASCORP JPEG Webcam, NGS Cyclops
vc032x 17ef:4802 Lenovo Vc0323+MI1310_SOC
pac207 2001:f115 D-Link DSB-C120
sq905c 2770:9050 sq905c
sq905c 2770:905c DualCamera
sq905 2770:9120 Argus Digital Camera DC1512
sq905c 2770:913d sq905c
sq905c 2770:9050 Disney pix micro (CIF)
sq905c 2770:9052 Disney pix micro 2 (VGA)
sq905c 2770:905c All 11 known cameras with this ID
sq905 2770:9120 All 24 known cameras with this ID
sq905c 2770:913d All 4 known cameras with this ID
spca500 2899:012c Toptro Industrial
ov519 8020:ef04 ov519
spca508 8086:0110 Intel Easy PC Camera
......
Documentation/video4linux/v4l2-framework.txt
浏览文件 @ e02c4fd3
......@@ -599,99 +599,13 @@ video_device::minor fields.
video buffer helper functions
-----------------------------
The v4l2 core API provides a standard method for dealing with video
buffers. Those methods allow a driver to implement read(), mmap() and
overlay() on a consistent way.
There are currently methods for using video buffers on devices that
supports DMA with scatter/gather method (videobuf-dma-sg), DMA with
linear access (videobuf-dma-contig), and vmalloced buffers, mostly
used on USB drivers (videobuf-vmalloc).
Any driver using videobuf should provide operations (callbacks) for
four handlers:
ops->buf_setup - calculates the size of the video buffers and avoid they
to waste more than some maximum limit of RAM;
ops->buf_prepare - fills the video buffer structs and calls
videobuf_iolock() to alloc and prepare mmaped memory;
ops->buf_queue - advices the driver that another buffer were
requested (by read() or by QBUF);
ops->buf_release - frees any buffer that were allocated.
In order to use it, the driver need to have a code (generally called at
interrupt context) that will properly handle the buffer request lists,
announcing that a new buffer were filled.
The irq handling code should handle the videobuf task lists, in order
to advice videobuf that a new frame were filled, in order to honor to a
request. The code is generally like this one:
if (list_empty(&dma_q->active))
return;
buf = list_entry(dma_q->active.next, struct vbuffer, vb.queue);
if (!waitqueue_active(&buf->vb.done))
return;
/* Some logic to handle the buf may be needed here */
list_del(&buf->vb.queue);
do_gettimeofday(&buf->vb.ts);
wake_up(&buf->vb.done);
Those are the videobuffer functions used on drivers, implemented on
videobuf-core:
- Videobuf init functions
videobuf_queue_sg_init()
Initializes the videobuf infrastructure. This function should be
called before any other videobuf function on drivers that uses DMA
Scatter/Gather buffers.
videobuf_queue_dma_contig_init
Initializes the videobuf infrastructure. This function should be
called before any other videobuf function on drivers that need DMA
contiguous buffers.
videobuf_queue_vmalloc_init()
Initializes the videobuf infrastructure. This function should be
called before any other videobuf function on USB (and other drivers)
that need a vmalloced type of videobuf.
- videobuf_iolock()
Prepares the videobuf memory for the proper method (read, mmap, overlay).
- videobuf_queue_is_busy()
Checks if a videobuf is streaming.
- videobuf_queue_cancel()
Stops video handling.
- videobuf_mmap_free()
frees mmap buffers.
- videobuf_stop()
Stops video handling, ends mmap and frees mmap and other buffers.
- V4L2 api functions. Those functions correspond to VIDIOC_foo ioctls:
videobuf_reqbufs(), videobuf_querybuf(), videobuf_qbuf(),
videobuf_dqbuf(), videobuf_streamon(), videobuf_streamoff().
- V4L1 api function (corresponds to VIDIOCMBUF ioctl):
videobuf_cgmbuf()
This function is used to provide backward compatibility with V4L1
API.
- Some help functions for read()/poll() operations:
videobuf_read_stream()
For continuous stream read()
videobuf_read_one()
For snapshot read()
videobuf_poll_stream()
polling help function
The better way to understand it is to take a look at vivi driver. One
of the main reasons for vivi is to be a videobuf usage example. the
vivi_thread_tick() does the task that the IRQ callback would do on PCI
drivers (or the irq callback on USB).
The v4l2 core API provides a set of standard methods (called "videobuf")
for dealing with video buffers. Those methods allow a driver to implement
read(), mmap() and overlay() in a consistent way. There are currently
methods for using video buffers on devices that supports DMA with
scatter/gather method (videobuf-dma-sg), DMA with linear access
(videobuf-dma-contig), and vmalloced buffers, mostly used on USB drivers
(videobuf-vmalloc).
Please see Documentation/video4linux/videobuf for more information on how
to use the videobuf layer.
Documentation/video4linux/videobuf 0 → 100644
浏览文件 @ e02c4fd3
An introduction to the videobuf layer
Jonathan Corbet <corbet@lwn.net>
Current as of 2.6.33
The videobuf layer functions as a sort of glue layer between a V4L2 driver
and user space. It handles the allocation and management of buffers for
the storage of video frames. There is a set of functions which can be used
to implement many of the standard POSIX I/O system calls, including read(),
poll(), and, happily, mmap(). Another set of functions can be used to
implement the bulk of the V4L2 ioctl() calls related to streaming I/O,
including buffer allocation, queueing and dequeueing, and streaming
control. Using videobuf imposes a few design decisions on the driver
author, but the payback comes in the form of reduced code in the driver and
a consistent implementation of the V4L2 user-space API.
Buffer types
Not all video devices use the same kind of buffers. In fact, there are (at
least) three common variations:
- Buffers which are scattered in both the physical and (kernel) virtual
address spaces. (Almost) all user-space buffers are like this, but it
makes great sense to allocate kernel-space buffers this way as well when
it is possible. Unfortunately, it is not always possible; working with
this kind of buffer normally requires hardware which can do
scatter/gather DMA operations.
- Buffers which are physically scattered, but which are virtually
contiguous; buffers allocated with vmalloc(), in other words. These
buffers are just as hard to use for DMA operations, but they can be
useful in situations where DMA is not available but virtually-contiguous
buffers are convenient.
- Buffers which are physically contiguous. Allocation of this kind of
buffer can be unreliable on fragmented systems, but simpler DMA
controllers cannot deal with anything else.
Videobuf can work with all three types of buffers, but the driver author
must pick one at the outset and design the driver around that decision.
[It's worth noting that there's a fourth kind of buffer: "overlay" buffers
which are located within the system's video memory. The overlay
functionality is considered to be deprecated for most use, but it still
shows up occasionally in system-on-chip drivers where the performance
benefits merit the use of this technique. Overlay buffers can be handled
as a form of scattered buffer, but there are very few implementations in
the kernel and a description of this technique is currently beyond the
scope of this document.]
Data structures, callbacks, and initialization
Depending on which type of buffers are being used, the driver should
include one of the following files:
<media/videobuf-dma-sg.h> /* Physically scattered */
<media/videobuf-vmalloc.h> /* vmalloc() buffers */
<media/videobuf-dma-contig.h> /* Physically contiguous */
The driver's data structure describing a V4L2 device should include a
struct videobuf_queue instance for the management of the buffer queue,
along with a list_head for the queue of available buffers. There will also
need to be an interrupt-safe spinlock which is used to protect (at least)
the queue.
The next step is to write four simple callbacks to help videobuf deal with
the management of buffers:
struct videobuf_queue_ops {
int (*buf_setup)(struct videobuf_queue *q,
unsigned int *count, unsigned int *size);
int (*buf_prepare)(struct videobuf_queue *q,
struct videobuf_buffer *vb,
enum v4l2_field field);
void (*buf_queue)(struct videobuf_queue *q,
struct videobuf_buffer *vb);
void (*buf_release)(struct videobuf_queue *q,
struct videobuf_buffer *vb);
};
buf_setup() is called early in the I/O process, when streaming is being
initiated; its purpose is to tell videobuf about the I/O stream. The count
parameter will be a suggested number of buffers to use; the driver should
check it for rationality and adjust it if need be. As a practical rule, a
minimum of two buffers are needed for proper streaming, and there is
usually a maximum (which cannot exceed 32) which makes sense for each
device. The size parameter should be set to the expected (maximum) size
for each frame of data.
Each buffer (in the form of a struct videobuf_buffer pointer) will be
passed to buf_prepare(), which should set the buffer's size, width, height,
and field fields properly. If the buffer's state field is
VIDEOBUF_NEEDS_INIT, the driver should pass it to:
int videobuf_iolock(struct videobuf_queue* q, struct videobuf_buffer *vb,
struct v4l2_framebuffer *fbuf);
Among other things, this call will usually allocate memory for the buffer.
Finally, the buf_prepare() function should set the buffer's state to
VIDEOBUF_PREPARED.
When a buffer is queued for I/O, it is passed to buf_queue(), which should
put it onto the driver's list of available buffers and set its state to
VIDEOBUF_QUEUED. Note that this function is called with the queue spinlock
held; if it tries to acquire it as well things will come to a screeching
halt. Yes, this is the voice of experience. Note also that videobuf may
wait on the first buffer in the queue; placing other buffers in front of it
could again gum up the works. So use list_add_tail() to enqueue buffers.
Finally, buf_release() is called when a buffer is no longer intended to be
used. The driver should ensure that there is no I/O active on the buffer,
then pass it to the appropriate free routine(s):
/* Scatter/gather drivers */
int videobuf_dma_unmap(struct videobuf_queue *q,
struct videobuf_dmabuf *dma);
int videobuf_dma_free(struct videobuf_dmabuf *dma);
/* vmalloc drivers */
void videobuf_vmalloc_free (struct videobuf_buffer *buf);
/* Contiguous drivers */
void videobuf_dma_contig_free(struct videobuf_queue *q,
struct videobuf_buffer *buf);
One way to ensure that a buffer is no longer under I/O is to pass it to:
int videobuf_waiton(struct videobuf_buffer *vb, int non_blocking, int intr);
Here, vb is the buffer, non_blocking indicates whether non-blocking I/O
should be used (it should be zero in the buf_release() case), and intr
controls whether an interruptible wait is used.
File operations
At this point, much of the work is done; much of the rest is slipping
videobuf calls into the implementation of the other driver callbacks. The
first step is in the open() function, which must initialize the
videobuf queue. The function to use depends on the type of buffer used:
void videobuf_queue_sg_init(struct videobuf_queue *q,
struct videobuf_queue_ops *ops,
struct device *dev,
spinlock_t *irqlock,
enum v4l2_buf_type type,
enum v4l2_field field,
unsigned int msize,
void *priv);
void videobuf_queue_vmalloc_init(struct videobuf_queue *q,
struct videobuf_queue_ops *ops,
struct device *dev,
spinlock_t *irqlock,
enum v4l2_buf_type type,
enum v4l2_field field,
unsigned int msize,
void *priv);
void videobuf_queue_dma_contig_init(struct videobuf_queue *q,
struct videobuf_queue_ops *ops,
struct device *dev,
spinlock_t *irqlock,
enum v4l2_buf_type type,
enum v4l2_field field,
unsigned int msize,
void *priv);
In each case, the parameters are the same: q is the queue structure for the
device, ops is the set of callbacks as described above, dev is the device
structure for this video device, irqlock is an interrupt-safe spinlock to
protect access to the data structures, type is the buffer type used by the
device (cameras will use V4L2_BUF_TYPE_VIDEO_CAPTURE, for example), field
describes which field is being captured (often V4L2_FIELD_NONE for
progressive devices), msize is the size of any containing structure used
around struct videobuf_buffer, and priv is a private data pointer which
shows up in the priv_data field of struct videobuf_queue. Note that these
are void functions which, evidently, are immune to failure.
V4L2 capture drivers can be written to support either of two APIs: the
read() system call and the rather more complicated streaming mechanism. As
a general rule, it is necessary to support both to ensure that all
applications have a chance of working with the device. Videobuf makes it
easy to do that with the same code. To implement read(), the driver need
only make a call to one of:
ssize_t videobuf_read_one(struct videobuf_queue *q,
char __user *data, size_t count,
loff_t *ppos, int nonblocking);
ssize_t videobuf_read_stream(struct videobuf_queue *q,
char __user *data, size_t count,
loff_t *ppos, int vbihack, int nonblocking);
Either one of these functions will read frame data into data, returning the
amount actually read; the difference is that videobuf_read_one() will only
read a single frame, while videobuf_read_stream() will read multiple frames
if they are needed to satisfy the count requested by the application. A
typical driver read() implementation will start the capture engine, call
one of the above functions, then stop the engine before returning (though a
smarter implementation might leave the engine running for a little while in
anticipation of another read() call happening in the near future).
The poll() function can usually be implemented with a direct call to:
unsigned int videobuf_poll_stream(struct file *file,
struct videobuf_queue *q,
poll_table *wait);
Note that the actual wait queue eventually used will be the one associated
with the first available buffer.
When streaming I/O is done to kernel-space buffers, the driver must support
the mmap() system call to enable user space to access the data. In many
V4L2 drivers, the often-complex mmap() implementation simplifies to a
single call to:
int videobuf_mmap_mapper(struct videobuf_queue *q,
struct vm_area_struct *vma);
Everything else is handled by the videobuf code.
The release() function requires two separate videobuf calls:
void videobuf_stop(struct videobuf_queue *q);
int videobuf_mmap_free(struct videobuf_queue *q);
The call to videobuf_stop() terminates any I/O in progress - though it is
still up to the driver to stop the capture engine. The call to
videobuf_mmap_free() will ensure that all buffers have been unmapped; if
so, they will all be passed to the buf_release() callback. If buffers
remain mapped, videobuf_mmap_free() returns an error code instead. The
purpose is clearly to cause the closing of the file descriptor to fail if
buffers are still mapped, but every driver in the 2.6.32 kernel cheerfully
ignores its return value.
ioctl() operations
The V4L2 API includes a very long list of driver callbacks to respond to
the many ioctl() commands made available to user space. A number of these
- those associated with streaming I/O - turn almost directly into videobuf
calls. The relevant helper functions are:
int videobuf_reqbufs(struct videobuf_queue *q,
struct v4l2_requestbuffers *req);
int videobuf_querybuf(struct videobuf_queue *q, struct v4l2_buffer *b);
int videobuf_qbuf(struct videobuf_queue *q, struct v4l2_buffer *b);
int videobuf_dqbuf(struct videobuf_queue *q, struct v4l2_buffer *b,
int nonblocking);
int videobuf_streamon(struct videobuf_queue *q);
int videobuf_streamoff(struct videobuf_queue *q);
int videobuf_cgmbuf(struct videobuf_queue *q, struct video_mbuf *mbuf,
int count);
So, for example, a VIDIOC_REQBUFS call turns into a call to the driver's
vidioc_reqbufs() callback which, in turn, usually only needs to locate the
proper struct videobuf_queue pointer and pass it to videobuf_reqbufs().
These support functions can replace a great deal of buffer management
boilerplate in a lot of V4L2 drivers.
The vidioc_streamon() and vidioc_streamoff() functions will be a bit more
complex, of course, since they will also need to deal with starting and
stopping the capture engine. videobuf_cgmbuf(), called from the driver's
vidiocgmbuf() function, only exists if the V4L1 compatibility module has
been selected with CONFIG_VIDEO_V4L1_COMPAT, so its use must be surrounded
with #ifdef directives.
Buffer allocation
Thus far, we have talked about buffers, but have not looked at how they are
allocated. The scatter/gather case is the most complex on this front. For
allocation, the driver can leave buffer allocation entirely up to the
videobuf layer; in this case, buffers will be allocated as anonymous
user-space pages and will be very scattered indeed. If the application is
using user-space buffers, no allocation is needed; the videobuf layer will
take care of calling get_user_pages() and filling in the scatterlist array.
If the driver needs to do its own memory allocation, it should be done in
the vidioc_reqbufs() function, *after* calling videobuf_reqbufs(). The
first step is a call to:
struct videobuf_dmabuf *videobuf_to_dma(struct videobuf_buffer *buf);
The returned videobuf_dmabuf structure (defined in
<media/videobuf-dma-sg.h>) includes a couple of relevant fields:
struct scatterlist *sglist;
int sglen;
The driver must allocate an appropriately-sized scatterlist array and
populate it with pointers to the pieces of the allocated buffer; sglen
should be set to the length of the array.
Drivers using the vmalloc() method need not (and cannot) concern themselves
with buffer allocation at all; videobuf will handle those details. The
same is normally true of contiguous-DMA drivers as well; videobuf will
allocate the buffers (with dma_alloc_coherent()) when it sees fit. That
means that these drivers may be trying to do high-order allocations at any
time, an operation which is not always guaranteed to work. Some drivers
play tricks by allocating DMA space at system boot time; videobuf does not
currently play well with those drivers.
As of 2.6.31, contiguous-DMA drivers can work with a user-supplied buffer,
as long as that buffer is physically contiguous. Normal user-space
allocations will not meet that criterion, but buffers obtained from other
kernel drivers, or those contained within huge pages, will work with these
drivers.
Filling the buffers
The final part of a videobuf implementation has no direct callback - it's
the portion of the code which actually puts frame data into the buffers,
usually in response to interrupts from the device. For all types of
drivers, this process works approximately as follows:
- Obtain the next available buffer and make sure that somebody is actually
waiting for it.
- Get a pointer to the memory and put video data there.
- Mark the buffer as done and wake up the process waiting for it.
Step (1) above is done by looking at the driver-managed list_head structure
- the one which is filled in the buf_queue() callback. Because starting
the engine and enqueueing buffers are done in separate steps, it's possible
for the engine to be running without any buffers available - in the
vmalloc() case especially. So the driver should be prepared for the list
to be empty. It is equally possible that nobody is yet interested in the
buffer; the driver should not remove it from the list or fill it until a
process is waiting on it. That test can be done by examining the buffer's
done field (a wait_queue_head_t structure) with waitqueue_active().
A buffer's state should be set to VIDEOBUF_ACTIVE before being mapped for
DMA; that ensures that the videobuf layer will not try to do anything with
it while the device is transferring data.
For scatter/gather drivers, the needed memory pointers will be found in the
scatterlist structure described above. Drivers using the vmalloc() method
can get a memory pointer with:
void *videobuf_to_vmalloc(struct videobuf_buffer *buf);
For contiguous DMA drivers, the function to use is:
dma_addr_t videobuf_to_dma_contig(struct videobuf_buffer *buf);
The contiguous DMA API goes out of its way to hide the kernel-space address
of the DMA buffer from drivers.
The final step is to set the size field of the relevant videobuf_buffer
structure to the actual size of the captured image, set state to
VIDEOBUF_DONE, then call wake_up() on the done queue. At this point, the
buffer is owned by the videobuf layer and the driver should not touch it
again.
Developers who are interested in more information can go into the relevant
header files; there are a few low-level functions declared there which have
not been talked about here. Also worthwhile is the vivi driver
(drivers/media/video/vivi.c), which is maintained as an example of how V4L2
drivers should be written. Vivi only uses the vmalloc() API, but it's good
enough to get started with. Note also that all of these calls are exported
GPL-only, so they will not be available to non-GPL kernel modules.
Documentation/x86/x86_64/boot-options.txt
浏览文件 @ e02c4fd3
......@@ -166,19 +166,13 @@ NUMA
numa=noacpi Don't parse the SRAT table for NUMA setup
numa=fake=CMDLINE
If a number, fakes CMDLINE nodes and ignores NUMA setup of the
actual machine. Otherwise, system memory is configured
depending on the sizes and coefficients listed. For example:
numa=fake=2*512,1024,4*256,*128
gives two 512M nodes, a 1024M node, four 256M nodes, and the
rest split into 128M chunks. If the last character of CMDLINE
is a *, the remaining memory is divided up equally among its
coefficient:
numa=fake=2*512,2*
gives two 512M nodes and the rest split into two nodes.
Otherwise, the remaining system RAM is allocated to an
additional node.
numa=fake=<size>[MG]
If given as a memory unit, fills all system RAM with nodes of
size interleaved over physical nodes.
numa=fake=<N>
If given as an integer, fills all system RAM with N fake nodes
interleaved over physical nodes.
ACPI
......
MAINTAINERS
浏览文件 @ e02c4fd3
......@@ -221,6 +221,7 @@ F: drivers/net/acenic*
ACER ASPIRE ONE TEMPERATURE AND FAN DRIVER
M: Peter Feuerer <peter@piie.net>
L: platform-driver-x86@vger.kernel.org
W: http://piie.net/?section=acerhdf
S: Maintained
F: drivers/platform/x86/acerhdf.c
......@@ -228,6 +229,7 @@ F: drivers/platform/x86/acerhdf.c
ACER WMI LAPTOP EXTRAS
M: Carlos Corbacho <carlos@strangeworlds.co.uk>
L: aceracpi@googlegroups.com (subscribers-only)
L: platform-driver-x86@vger.kernel.org
W: http://code.google.com/p/aceracpi
S: Maintained
F: drivers/platform/x86/acer-wmi.c
......@@ -288,7 +290,7 @@ F: drivers/acpi/video.c
ACPI WMI DRIVER
M: Carlos Corbacho <carlos@strangeworlds.co.uk>
L: linux-acpi@vger.kernel.org
L: platform-driver-x86@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Maintained
F: drivers/platform/x86/wmi.c
......@@ -968,6 +970,7 @@ ASUS ACPI EXTRAS DRIVER
M: Corentin Chary <corentincj@iksaif.net>
M: Karol Kozimor <sziwan@users.sourceforge.net>
L: acpi4asus-user@lists.sourceforge.net
L: platform-driver-x86@vger.kernel.org
W: http://acpi4asus.sf.net
S: Maintained
F: drivers/platform/x86/asus_acpi.c
......@@ -981,6 +984,7 @@ F: drivers/hwmon/asb100.c
ASUS LAPTOP EXTRAS DRIVER
M: Corentin Chary <corentincj@iksaif.net>
L: acpi4asus-user@lists.sourceforge.net
L: platform-driver-x86@vger.kernel.org
W: http://acpi4asus.sf.net
S: Maintained
F: drivers/platform/x86/asus-laptop.c
......@@ -1473,6 +1477,7 @@ F: drivers/scsi/fnic/
CMPC ACPI DRIVER
M: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
M: Daniel Oliveira Nascimento <don@syst.com.br>
L: platform-driver-x86@vger.kernel.org
S: Supported
F: drivers/platform/x86/classmate-laptop.c
......@@ -1516,6 +1521,7 @@ F: drivers/pci/hotplug/cpcihp_generic.c
COMPAL LAPTOP SUPPORT
M: Cezary Jackiewicz <cezary.jackiewicz@gmail.com>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/compal-laptop.c
......@@ -1746,6 +1752,7 @@ F: drivers/net/defxx.*
DELL LAPTOP DRIVER
M: Matthew Garrett <mjg59@srcf.ucam.org>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/dell-laptop.c
......@@ -2028,6 +2035,7 @@ F: drivers/edac/r82600_edac.c
EEEPC LAPTOP EXTRAS DRIVER
M: Corentin Chary <corentincj@iksaif.net>
L: acpi4asus-user@lists.sourceforge.net
L: platform-driver-x86@vger.kernel.org
W: http://acpi4asus.sf.net
S: Maintained
F: drivers/platform/x86/eeepc-laptop.c
......@@ -2141,6 +2149,17 @@ S: Supported
F: Documentation/fault-injection/
F: lib/fault-inject.c
FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
M: Robert Love <robert.w.love@intel.com>
L: devel@open-fcoe.org
W: www.Open-FCoE.org
S: Supported
F: drivers/scsi/libfc/
F: drivers/scsi/fcoe/
F: include/scsi/fc/
F: include/scsi/libfc.h
F: include/scsi/libfcoe.h
FILE LOCKING (flock() and fcntl()/lockf())
M: Matthew Wilcox <matthew@wil.cx>
L: linux-fsdevel@vger.kernel.org
......@@ -2295,7 +2314,7 @@ F: arch/frv/
FUJITSU LAPTOP EXTRAS
M: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
L: linux-acpi@vger.kernel.org
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/fujitsu-laptop.c
......@@ -2372,6 +2391,12 @@ F: Documentation/isdn/README.gigaset
F: drivers/isdn/gigaset/
F: include/linux/gigaset_dev.h
GRETH 10/100/1G Ethernet MAC device driver
M: Kristoffer Glembo <kristoffer@gaisler.com>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/greth*
HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
M: Frank Seidel <frank@f-seidel.de>
L: lm-sensors@lm-sensors.org
......@@ -2393,6 +2418,18 @@ L: linuxppc-dev@ozlabs.org
S: Odd Fixes
F: drivers/char/hvc_*
VIRTIO CONSOLE DRIVER
M: Amit Shah <amit.shah@redhat.com>
L: virtualization@lists.linux-foundation.org
S: Maintained
F: drivers/char/virtio_console.c
iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER
M: Peter Jones <pjones@redhat.com>
M: Konrad Rzeszutek Wilk <konrad@kernel.org>
S: Maintained
F: drivers/firmware/iscsi_ibft*
GSPCA FINEPIX SUBDRIVER
M: Frank Zago <frank@zago.net>
L: linux-media@vger.kernel.org
......@@ -2561,6 +2598,7 @@ F: drivers/net/wireless/hostap/
HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER
M: Carlos Corbacho <carlos@strangeworlds.co.uk>
L: platform-driver-x86@vger.kernel.org
S: Odd Fixes
F: drivers/platform/x86/tc1100-wmi.c
......@@ -2771,7 +2809,7 @@ F: drivers/video/i810/
INTEL MENLOW THERMAL DRIVER
M: Sujith Thomas <sujith.thomas@intel.com>
L: linux-acpi@vger.kernel.org
L: platform-driver-x86@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
F: drivers/platform/x86/intel_menlow.c
......@@ -3496,9 +3534,9 @@ F: drivers/net/mv643xx_eth.*
F: include/linux/mv643xx.h
MARVELL MWL8K WIRELESS DRIVER
M: Lennert Buytenhek <buytenh@marvell.com>
M: Lennert Buytenhek <buytenh@wantstofly.org>
L: linux-wireless@vger.kernel.org
S: Supported
S: Maintained
F: drivers/net/wireless/mwl8k.c
MARVELL SOC MMC/SD/SDIO CONTROLLER DRIVER
......@@ -3637,6 +3675,7 @@ F: drivers/char/mxser.*
MSI LAPTOP SUPPORT
M: Lennart Poettering <mzxreary@0pointer.de>
L: platform-driver-x86@vger.kernel.org
W: https://tango.0pointer.de/mailman/listinfo/s270-linux
W: http://0pointer.de/lennart/tchibo.html
S: Maintained
......@@ -3644,6 +3683,7 @@ F: drivers/platform/x86/msi-laptop.c
MSI WMI SUPPORT
M: Anisse Astier <anisse@astier.eu>
L: platform-driver-x86@vger.kernel.org
S: Supported
F: drivers/platform/x86/msi-wmi.c
......@@ -4096,6 +4136,7 @@ F: drivers/i2c/busses/i2c-pasemi.c
PANASONIC LAPTOP ACPI EXTRAS DRIVER
M: Harald Welte <laforge@gnumonks.org>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/panasonic-laptop.c
......@@ -4445,6 +4486,13 @@ S: Supported
F: Documentation/networking/LICENSE.qla3xxx
F: drivers/net/qla3xxx.*
QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
M: Amit Kumar Salecha <amit.salecha@qlogic.com>
M: linux-driver@qlogic.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/qlcnic/
QLOGIC QLGE 10Gb ETHERNET DRIVER
M: Ron Mercer <ron.mercer@qlogic.com>
M: linux-driver@qlogic.com
......@@ -4509,7 +4557,7 @@ F: drivers/net/wireless/ray*
RCUTORTURE MODULE
M: Josh Triplett <josh@freedesktop.org>
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
S: Maintained
S: Supported
F: Documentation/RCU/torture.txt
F: kernel/rcutorture.c
......@@ -4534,11 +4582,12 @@ M: Dipankar Sarma <dipankar@in.ibm.com>
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
W: http://www.rdrop.com/users/paulmck/rclock/
S: Supported
F: Documentation/RCU/rcu.txt
F: Documentation/RCU/rcuref.txt
F: include/linux/rcupdate.h
F: include/linux/srcu.h
F: kernel/rcupdate.c
F: Documentation/RCU/
F: include/linux/rcu*
F: include/linux/srcu*
F: kernel/rcu*
F: kernel/srcu*
X: kernel/rcutorture.c
REAL TIME CLOCK DRIVER
M: Paul Gortmaker <p_gortmaker@yahoo.com>
......@@ -4676,6 +4725,13 @@ F: drivers/media/common/saa7146*
F: drivers/media/video/*7146*
F: include/media/*7146*
TLG2300 VIDEO4LINUX-2 DRIVER
M: Huang Shijie <shijie8@gmail.com>
M: Kang Yong <kangyong@telegent.com>
M: Zhang Xiaobing <xbzhang@telegent.com>
S: Supported
F: drivers/media/video/tlg2300
SC1200 WDT DRIVER
M: Zwane Mwaikambo <zwane@arm.linux.org.uk>
S: Maintained
......@@ -4831,6 +4887,8 @@ F: drivers/scsi/be2iscsi/
SERVER ENGINES 10Gbps NIC - BladeEngine 2 DRIVER
M: Sathya Perla <sathyap@serverengines.com>
M: Subbu Seetharaman <subbus@serverengines.com>
M: Sarveshwar Bandi <sarveshwarb@serverengines.com>
M: Ajit Khaparde <ajitk@serverengines.com>
L: netdev@vger.kernel.org
W: http://www.serverengines.com
S: Supported
......@@ -5034,7 +5092,7 @@ F: include/linux/ssb/
SONY VAIO CONTROL DEVICE DRIVER
M: Mattia Dongili <malattia@linux.it>
L: linux-acpi@vger.kernel.org
L: platform-driver-x86@vger.kernel.org
W: http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
S: Maintained
F: Documentation/laptops/sony-laptop.txt
......@@ -5240,6 +5298,7 @@ F: arch/xtensa/
THINKPAD ACPI EXTRAS DRIVER
M: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
L: ibm-acpi-devel@lists.sourceforge.net
L: platform-driver-x86@vger.kernel.org
W: http://ibm-acpi.sourceforge.net
W: http://thinkwiki.org/wiki/Ibm-acpi
T: git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
......@@ -5293,10 +5352,12 @@ F: security/tomoyo/
TOPSTAR LAPTOP EXTRAS DRIVER
M: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/topstar-laptop.c
TOSHIBA ACPI EXTRAS DRIVER
L: platform-driver-x86@vger.kernel.org
S: Orphan
F: drivers/platform/x86/toshiba_acpi.c
......@@ -5796,6 +5857,15 @@ S: Maintained
F: Documentation/filesystems/vfat.txt
F: fs/fat/
VIRTIO HOST (VHOST)
M: "Michael S. Tsirkin" <mst@redhat.com>
L: kvm@vger.kernel.org
L: virtualization@lists.osdl.org
L: netdev@vger.kernel.org
S: Maintained
F: drivers/vhost/
F: include/linux/vhost.h
VIA RHINE NETWORK DRIVER
M: Roger Luethi <rl@hellgate.ch>
S: Maintained
......@@ -5954,7 +6024,7 @@ S: Maintained
F: drivers/input/misc/wistron_btns.c
WL1251 WIRELESS DRIVER
M: Kalle Valo <kalle.valo@nokia.com>
M: Kalle Valo <kalle.valo@iki.fi>
L: linux-wireless@vger.kernel.org
W: http://wireless.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
......@@ -6024,6 +6094,12 @@ S: Maintained
F: Documentation/x86/
F: arch/x86/
X86 PLATFORM DRIVERS
M: Matthew Garrett <mjg@redhat.com>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86
XEN HYPERVISOR INTERFACE
M: Jeremy Fitzhardinge <jeremy@xensource.com>
M: Chris Wright <chrisw@sous-sol.org>
......
arch/Kconfig
浏览文件 @ e02c4fd3
......@@ -3,11 +3,9 @@
#
config OPROFILE
tristate "OProfile system profiling (EXPERIMENTAL)"
tristate "OProfile system profiling"
depends on PROFILING
depends on HAVE_OPROFILE
depends on TRACING_SUPPORT
select TRACING
select RING_BUFFER
select RING_BUFFER_ALLOW_SWAP
help
......@@ -17,20 +15,6 @@ config OPROFILE
If unsure, say N.
config OPROFILE_IBS
bool "OProfile AMD IBS support (EXPERIMENTAL)"
default n
depends on OPROFILE && SMP && X86
help
Instruction-Based Sampling (IBS) is a new profiling
technique that provides rich, precise program performance
information. IBS is introduced by AMD Family10h processors
(AMD Opteron Quad-Core processor "Barcelona") to overcome
the limitations of conventional performance counter
sampling.
If unsure, say N.
config OPROFILE_EVENT_MULTIPLEX
bool "OProfile multiplexing support (EXPERIMENTAL)"
default n
......
arch/alpha/include/asm/pgtable.h
浏览文件 @ e02c4fd3
......@@ -329,7 +329,7 @@ extern pgd_t swapper_pg_dir[1024];
* tables contain all the necessary information.
*/
extern inline void update_mmu_cache(struct vm_area_struct * vma,
unsigned long address, pte_t pte)
unsigned long address, pte_t *ptep)
{
}
......
arch/alpha/kernel/pci.c
浏览文件 @ e02c4fd3
......@@ -126,8 +126,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_final);
#define MB (1024*KB)
#define GB (1024*MB)
void
pcibios_align_resource(void *data, struct resource *res,
resource_size_t
pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
......@@ -184,7 +184,7 @@ pcibios_align_resource(void *data, struct resource *res,
}
}
res->start = start;
return start;
}
#undef KB
#undef MB
......
arch/arm/Kconfig
浏览文件 @ e02c4fd3
......@@ -12,6 +12,7 @@ config ARM
select HAVE_IDE
select RTC_LIB
select SYS_SUPPORTS_APM_EMULATION
select GENERIC_ATOMIC64 if (!CPU_32v6K)
select HAVE_OPROFILE
select HAVE_ARCH_KGDB
select HAVE_KPROBES if (!XIP_KERNEL)
......@@ -20,6 +21,8 @@ config ARM
select HAVE_GENERIC_DMA_COHERENT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZO
select HAVE_PERF_EVENTS
select PERF_USE_VMALLOC
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
......@@ -52,6 +55,9 @@ config HAVE_TCM
bool
select GENERIC_ALLOCATOR
config HAVE_PROC_CPU
bool
config NO_IOPORT
bool
......@@ -161,6 +167,11 @@ config ARCH_MTD_XIP
config GENERIC_HARDIRQS_NO__DO_IRQ
def_bool y
config ARM_L1_CACHE_SHIFT_6
bool
help
Setting ARM L1 cache line size to 64 Bytes.
if OPROFILE
config OPROFILE_ARMV6
......@@ -550,10 +561,20 @@ config ARCH_W90X900
<http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
config ARCH_NUC93X
bool "Nuvoton NUC93X CPU"
select CPU_ARM926T
select HAVE_CLK
select COMMON_CLKDEV
help
Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
low-power and high performance MPEG-4/JPEG multimedia controller chip.
config ARCH_PNX4008
bool "Philips Nexperia PNX4008 Mobile"
select CPU_ARM926T
select HAVE_CLK
select COMMON_CLKDEV
help
This enables support for Philips PNX4008 mobile platform.
......@@ -638,6 +659,7 @@ config ARCH_S5PC1XX
select GENERIC_GPIO
select HAVE_CLK
select CPU_V7
select ARM_L1_CACHE_SHIFT_6
help
Samsung S5PC1XX series based systems
......@@ -785,6 +807,8 @@ source "arch/arm/plat-nomadik/Kconfig"
source "arch/arm/mach-ns9xxx/Kconfig"
source "arch/arm/mach-nuc93x/Kconfig"
source "arch/arm/plat-omap/Kconfig"
source "arch/arm/mach-omap1/Kconfig"
......@@ -867,6 +891,11 @@ config XSCALE_PMU
depends on CPU_XSCALE && !XSCALE_PMU_TIMER
default y
config CPU_HAS_PMU
depends on CPU_V6 || CPU_V7 || XSCALE_PMU
default y
bool
if !MMU
source "arch/arm/Kconfig-nommu"
endif
......@@ -921,6 +950,19 @@ config ARM_ERRATA_460075
ACTLR register. Note that setting specific bits in the ACTLR register
may not be available in non-secure mode.
config PL310_ERRATA_588369
bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
depends on CACHE_L2X0 && ARCH_OMAP4
help
The PL310 L2 cache controller implements three types of Clean &
Invalidate maintenance operations: by Physical Address
(offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
They are architecturally defined to behave as the execution of a
clean operation followed immediately by an invalidate operation,
both performing to the same memory location. This functionality
is not correctly implemented in PL310 as clean lines are not
invalidated as a result of these operations. Note that this errata
uses Texas Instrument's secure monitor api.
endmenu
source "arch/arm/common/Kconfig"
......@@ -1171,6 +1213,14 @@ config HIGHPTE
depends on HIGHMEM
depends on !OUTER_CACHE
config HW_PERF_EVENTS
bool "Enable hardware performance counter support for perf events"
depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
default y
help
Enable hardware performance counter support for perf events. If
disabled, perf events will use software events only.
source "mm/Kconfig"
config LEDS
......@@ -1230,6 +1280,7 @@ config ALIGNMENT_TRAP
bool
depends on CPU_CP15_MMU
default y if !ARCH_EBSA110
select HAVE_PROC_CPU if PROC_FS
help
ARM processors cannot fetch/store information which is not
naturally aligned on the bus, i.e., a 4 byte fetch must start at an
......
arch/arm/Makefile
浏览文件 @ e02c4fd3
......@@ -171,6 +171,7 @@ machine-$(CONFIG_ARCH_U300) := u300
machine-$(CONFIG_ARCH_U8500) := ux500
machine-$(CONFIG_ARCH_VERSATILE) := versatile
machine-$(CONFIG_ARCH_W90X900) := w90x900
machine-$(CONFIG_ARCH_NUC93X) := nuc93x
machine-$(CONFIG_FOOTBRIDGE) := footbridge
# Platform directory name. This list is sorted alphanumerically
......
arch/arm/boot/compressed/Makefile
浏览文件 @ e02c4fd3
......@@ -5,7 +5,7 @@
#
HEAD = head.o
OBJS = misc.o
OBJS = misc.o decompress.o
FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
#
......@@ -106,10 +106,6 @@ lib1funcs = $(obj)/lib1funcs.o
$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
$(call cmd,shipped)
# Don't allow any static data in misc.o, which
# would otherwise mess up our GOT table
CFLAGS_misc.o := -Dstatic=
$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
$(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
$(call if_changed,ld)
......
arch/arm/boot/compressed/decompress.c 0 → 100644
浏览文件 @ e02c4fd3
#define _LINUX_STRING_H_
#include <linux/compiler.h> /* for inline */
#include <linux/types.h> /* for size_t */
#include <linux/stddef.h> /* for NULL */
#include <linux/linkage.h>
#include <asm/string.h>
extern unsigned long free_mem_ptr;
extern unsigned long free_mem_end_ptr;
extern void error(char *);
#define STATIC static
#define ARCH_HAS_DECOMP_WDOG
/* Diagnostic functions */
#ifdef DEBUG
# define Assert(cond,msg) {if(!(cond)) error(msg);}
# define Trace(x) fprintf x
# define Tracev(x) {if (verbose) fprintf x ;}
# define Tracevv(x) {if (verbose>1) fprintf x ;}
# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
#else
# define Assert(cond,msg)
# define Trace(x)
# define Tracev(x)
# define Tracevv(x)
# define Tracec(c,x)
# define Tracecv(c,x)
#endif
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_LZO
#include "../../../../lib/decompress_unlzo.c"
#endif
void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
{
decompress(input, len, NULL, NULL, output, NULL, error);
}
arch/arm/boot/compressed/head.S
浏览文件 @ e02c4fd3
......@@ -22,13 +22,13 @@
#if defined(CONFIG_DEBUG_ICEDCC)
#ifdef CONFIG_CPU_V6
.macro loadsp, rb
.macro loadsp, rb, tmp
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c0, c5, 0
.endm
#elif defined(CONFIG_CPU_V7)
.macro loadsp, rb
.macro loadsp, rb, tmp
.endm
.macro writeb, ch, rb
wait: mrc p14, 0, pc, c0, c1, 0
......@@ -36,13 +36,13 @@ wait: mrc p14, 0, pc, c0, c1, 0
mcr p14, 0, \ch, c0, c5, 0
.endm
#elif defined(CONFIG_CPU_XSCALE)
.macro loadsp, rb
.macro loadsp, rb, tmp
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c8, c0, 0
.endm
#else
.macro loadsp, rb
.macro loadsp, rb, tmp
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c1, c0, 0
......@@ -58,7 +58,7 @@ wait: mrc p14, 0, pc, c0, c1, 0
.endm
#if defined(CONFIG_ARCH_SA1100)
.macro loadsp, rb
.macro loadsp, rb, tmp
mov \rb, #0x80000000 @ physical base address
#ifdef CONFIG_DEBUG_LL_SER3
add \rb, \rb, #0x00050000 @ Ser3
......@@ -67,13 +67,13 @@ wait: mrc p14, 0, pc, c0, c1, 0
#endif
.endm
#elif defined(CONFIG_ARCH_S3C2410)
.macro loadsp, rb
.macro loadsp, rb, tmp
mov \rb, #0x50000000
add \rb, \rb, #0x4000 * CONFIG_S3C_LOWLEVEL_UART_PORT
.endm
#else
.macro loadsp, rb
addruart \rb
.macro loadsp, rb, tmp
addruart \rb, \tmp
.endm
#endif
#endif
......@@ -1025,7 +1025,7 @@ phex: adr r3, phexbuf
strb r2, [r3, r1]
b 1b
puts: loadsp r3
puts: loadsp r3, r1
1: ldrb r2, [r0], #1
teq r2, #0
moveq pc, lr
......@@ -1042,7 +1042,7 @@ puts: loadsp r3
putc:
mov r2, r0
mov r0, #0
loadsp r3
loadsp r3, r1
b 2b
memdump: mov r12, r0
......
arch/arm/boot/compressed/misc.c
浏览文件 @ e02c4fd3
......@@ -23,8 +23,8 @@ unsigned int __machine_arch_type;
#include <linux/compiler.h> /* for inline */
#include <linux/types.h> /* for size_t */
#include <linux/stddef.h> /* for NULL */
#include <asm/string.h>
#include <linux/linkage.h>
#include <asm/string.h>
#include <asm/unaligned.h>
......@@ -117,57 +117,7 @@ static void putstr(const char *ptr)
#endif
#define __ptr_t void *
#define memzero(s,n) __memzero(s,n)
/*
* Optimised C version of memzero for the ARM.
*/
void __memzero (__ptr_t s, size_t n)
{
union { void *vp; unsigned long *ulp; unsigned char *ucp; } u;
int i;
u.vp = s;
for (i = n >> 5; i > 0; i--) {
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
}
if (n & 1 << 4) {
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
*u.ulp++ = 0;
}
if (n & 1 << 3) {
*u.ulp++ = 0;
*u.ulp++ = 0;
}
if (n & 1 << 2)
*u.ulp++ = 0;
if (n & 1 << 1) {
*u.ucp++ = 0;
*u.ucp++ = 0;
}
if (n & 1)
*u.ucp++ = 0;
}
static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src,
size_t __n)
void *memcpy(void *__dest, __const void *__src, size_t __n)
{
int i = 0;
unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
......@@ -204,59 +154,20 @@ static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src,
/*
* gzip delarations
*/
#define STATIC static
/* Diagnostic functions */
#ifdef DEBUG
# define Assert(cond,msg) {if(!(cond)) error(msg);}
# define Trace(x) fprintf x
# define Tracev(x) {if (verbose) fprintf x ;}
# define Tracevv(x) {if (verbose>1) fprintf x ;}
# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
#else
# define Assert(cond,msg)
# define Trace(x)
# define Tracev(x)
# define Tracevv(x)
# define Tracec(c,x)
# define Tracecv(c,x)
#endif
static void error(char *m);
extern char input_data[];
extern char input_data_end[];
static unsigned char *output_data;
static unsigned long output_ptr;
static void error(char *m);
unsigned char *output_data;
unsigned long output_ptr;
static void putstr(const char *);
static unsigned long free_mem_ptr;
static unsigned long free_mem_end_ptr;
#ifdef STANDALONE_DEBUG
#define NO_INFLATE_MALLOC
#endif
#define ARCH_HAS_DECOMP_WDOG
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_LZO
#include "../../../../lib/decompress_unlzo.c"
#endif
unsigned long free_mem_ptr;
unsigned long free_mem_end_ptr;
#ifndef arch_error
#define arch_error(x)
#endif
static void error(char *x)
void error(char *x)
{
arch_error(x);
......@@ -272,6 +183,8 @@ asmlinkage void __div0(void)
error("Attempting division by 0!");
}
extern void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
#ifndef STANDALONE_DEBUG
unsigned long
......@@ -292,8 +205,8 @@ decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
output_ptr = get_unaligned_le32(tmp);
putstr("Uncompressing Linux...");
decompress(input_data, input_data_end - input_data,
NULL, NULL, output_data, NULL, error);
do_decompress(input_data, input_data_end - input_data,
output_data, error);
putstr(" done, booting the kernel.\n");
return output_ptr;
}
......
arch/arm/boot/compressed/vmlinux.lds.in
浏览文件 @ e02c4fd3
......@@ -14,6 +14,13 @@ SECTIONS
/DISCARD/ : {
*(.ARM.exidx*)
*(.ARM.extab*)
/*
* Discard any r/w data - this produces a link error if we have any,
* which is required for PIC decompression. Local data generates
* GOTOFF relocations, which prevents it being relocated independently
* of the text/got segments.
*/
*(.data)
}
. = TEXT_START;
......@@ -40,7 +47,6 @@ SECTIONS
.got : { *(.got) }
_got_end = .;
.got.plt : { *(.got.plt) }
.data : { *(.data) }
_edata = .;
. = BSS_START;
......
arch/arm/common/clkdev.c
浏览文件 @ e02c4fd3
......@@ -99,6 +99,16 @@ void clkdev_add(struct clk_lookup *cl)
}
EXPORT_SYMBOL(clkdev_add);
void __init clkdev_add_table(struct clk_lookup *cl, size_t num)
{
mutex_lock(&clocks_mutex);
while (num--) {
list_add_tail(&cl->node, &clocks);
cl++;
}
mutex_unlock(&clocks_mutex);
}
#define MAX_DEV_ID 20
#define MAX_CON_ID 16
......
arch/arm/common/dmabounce.c
浏览文件 @ e02c4fd3
......@@ -277,7 +277,7 @@ static inline dma_addr_t map_single(struct device *dev, void *ptr, size_t size,
* We don't need to sync the DMA buffer since
* it was allocated via the coherent allocators.
*/
dma_cache_maint(ptr, size, dir);
__dma_single_cpu_to_dev(ptr, size, dir);
}
return dma_addr;
......@@ -315,6 +315,8 @@ static inline void unmap_single(struct device *dev, dma_addr_t dma_addr,
__cpuc_flush_dcache_area(ptr, size);
}
free_safe_buffer(dev->archdata.dmabounce, buf);
} else {
__dma_single_dev_to_cpu(dma_to_virt(dev, dma_addr), size, dir);
}
}
......
arch/arm/common/vic.c
浏览文件 @ e02c4fd3
......@@ -18,6 +18,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/list.h>
#include <linux/io.h>
......@@ -28,48 +29,6 @@
#include <asm/mach/irq.h>
#include <asm/hardware/vic.h>
static void vic_ack_irq(unsigned int irq)
{
void __iomem *base = get_irq_chip_data(irq);
irq &= 31;
writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
/* moreover, clear the soft-triggered, in case it was the reason */
writel(1 << irq, base + VIC_INT_SOFT_CLEAR);
}
static void vic_mask_irq(unsigned int irq)
{
void __iomem *base = get_irq_chip_data(irq);
irq &= 31;
writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
}
static void vic_unmask_irq(unsigned int irq)
{
void __iomem *base = get_irq_chip_data(irq);
irq &= 31;
writel(1 << irq, base + VIC_INT_ENABLE);
}
/**
* vic_init2 - common initialisation code
* @base: Base of the VIC.
*
* Common initialisation code for registeration
* and resume.
*/
static void vic_init2(void __iomem *base)
{
int i;
for (i = 0; i < 16; i++) {
void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4);
writel(VIC_VECT_CNTL_ENABLE | i, reg);
}
writel(32, base + VIC_PL190_DEF_VECT_ADDR);
}
#if defined(CONFIG_PM)
/**
* struct vic_device - VIC PM device
......@@ -99,13 +58,34 @@ struct vic_device {
/* we cannot allocate memory when VICs are initially registered */
static struct vic_device vic_devices[CONFIG_ARM_VIC_NR];
static int vic_id;
static inline struct vic_device *to_vic(struct sys_device *sys)
{
return container_of(sys, struct vic_device, sysdev);
}
#endif /* CONFIG_PM */
static int vic_id;
/**
* vic_init2 - common initialisation code
* @base: Base of the VIC.
*
* Common initialisation code for registeration
* and resume.
*/
static void vic_init2(void __iomem *base)
{
int i;
for (i = 0; i < 16; i++) {
void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4);
writel(VIC_VECT_CNTL_ENABLE | i, reg);
}
writel(32, base + VIC_PL190_DEF_VECT_ADDR);
}
#if defined(CONFIG_PM)
static int vic_class_resume(struct sys_device *dev)
{
struct vic_device *vic = to_vic(dev);
......@@ -158,31 +138,6 @@ struct sysdev_class vic_class = {
.resume = vic_class_resume,
};
/**
* vic_pm_register - Register a VIC for later power management control
* @base: The base address of the VIC.
* @irq: The base IRQ for the VIC.
* @resume_sources: bitmask of interrupts allowed for resume sources.
*
* Register the VIC with the system device tree so that it can be notified
* of suspend and resume requests and ensure that the correct actions are
* taken to re-instate the settings on resume.
*/
static void __init vic_pm_register(void __iomem *base, unsigned int irq, u32 resume_sources)
{
struct vic_device *v;
if (vic_id >= ARRAY_SIZE(vic_devices))
printk(KERN_ERR "%s: too few VICs, increase CONFIG_ARM_VIC_NR\n", __func__);
else {
v = &vic_devices[vic_id];
v->base = base;
v->resume_sources = resume_sources;
v->irq = irq;
vic_id++;
}
}
/**
* vic_pm_init - initicall to register VIC pm
*
......@@ -219,9 +174,60 @@ static int __init vic_pm_init(void)
return 0;
}
late_initcall(vic_pm_init);
/**
* vic_pm_register - Register a VIC for later power management control
* @base: The base address of the VIC.
* @irq: The base IRQ for the VIC.
* @resume_sources: bitmask of interrupts allowed for resume sources.
*
* Register the VIC with the system device tree so that it can be notified
* of suspend and resume requests and ensure that the correct actions are
* taken to re-instate the settings on resume.
*/
static void __init vic_pm_register(void __iomem *base, unsigned int irq, u32 resume_sources)
{
struct vic_device *v;
if (vic_id >= ARRAY_SIZE(vic_devices))
printk(KERN_ERR "%s: too few VICs, increase CONFIG_ARM_VIC_NR\n", __func__);
else {
v = &vic_devices[vic_id];
v->base = base;
v->resume_sources = resume_sources;
v->irq = irq;
vic_id++;
}
}
#else
static inline void vic_pm_register(void __iomem *base, unsigned int irq, u32 arg1) { }
#endif /* CONFIG_PM */
static void vic_ack_irq(unsigned int irq)
{
void __iomem *base = get_irq_chip_data(irq);
irq &= 31;
writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
/* moreover, clear the soft-triggered, in case it was the reason */
writel(1 << irq, base + VIC_INT_SOFT_CLEAR);
}
static void vic_mask_irq(unsigned int irq)
{
void __iomem *base = get_irq_chip_data(irq);
irq &= 31;
writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
}
static void vic_unmask_irq(unsigned int irq)
{
void __iomem *base = get_irq_chip_data(irq);
irq &= 31;
writel(1 << irq, base + VIC_INT_ENABLE);
}
#if defined(CONFIG_PM)
static struct vic_device *vic_from_irq(unsigned int irq)
{
struct vic_device *v = vic_devices;
......@@ -255,10 +261,7 @@ static int vic_set_wake(unsigned int irq, unsigned int on)
return 0;
}
#else
static inline void vic_pm_register(void __iomem *base, unsigned int irq, u32 arg1) { }
#define vic_set_wake NULL
#endif /* CONFIG_PM */
......@@ -270,9 +273,62 @@ static struct irq_chip vic_chip = {
.set_wake = vic_set_wake,
};
/* The PL190 cell from ARM has been modified by ST, so handle both here */
static void vik_init_st(void __iomem *base, unsigned int irq_start,
u32 vic_sources);
/*
* The PL190 cell from ARM has been modified by ST to handle 64 interrupts.
* The original cell has 32 interrupts, while the modified one has 64,
* replocating two blocks 0x00..0x1f in 0x20..0x3f. In that case
* the probe function is called twice, with base set to offset 000
* and 020 within the page. We call this "second block".
*/
static void __init vic_init_st(void __iomem *base, unsigned int irq_start,
u32 vic_sources)
{
unsigned int i;
int vic_2nd_block = ((unsigned long)base & ~PAGE_MASK) != 0;
/* Disable all interrupts initially. */
writel(0, base + VIC_INT_SELECT);
writel(0, base + VIC_INT_ENABLE);
writel(~0, base + VIC_INT_ENABLE_CLEAR);
writel(0, base + VIC_IRQ_STATUS);
writel(0, base + VIC_ITCR);
writel(~0, base + VIC_INT_SOFT_CLEAR);
/*
* Make sure we clear all existing interrupts. The vector registers
* in this cell are after the second block of general registers,
* so we can address them using standard offsets, but only from
* the second base address, which is 0x20 in the page
*/
if (vic_2nd_block) {
writel(0, base + VIC_PL190_VECT_ADDR);
for (i = 0; i < 19; i++) {
unsigned int value;
value = readl(base + VIC_PL190_VECT_ADDR);
writel(value, base + VIC_PL190_VECT_ADDR);
}
/* ST has 16 vectors as well, but we don't enable them by now */
for (i = 0; i < 16; i++) {
void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4);
writel(0, reg);
}
writel(32, base + VIC_PL190_DEF_VECT_ADDR);
}
for (i = 0; i < 32; i++) {
if (vic_sources & (1 << i)) {
unsigned int irq = irq_start + i;
set_irq_chip(irq, &vic_chip);
set_irq_chip_data(irq, base);
set_irq_handler(irq, handle_level_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
}
}
}
/**
* vic_init - initialise a vectored interrupt controller
......@@ -299,7 +355,7 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
switch(vendor) {
case AMBA_VENDOR_ST:
vik_init_st(base, irq_start, vic_sources);
vic_init_st(base, irq_start, vic_sources);
return;
default:
printk(KERN_WARNING "VIC: unknown vendor, continuing anyways\n");
......@@ -343,60 +399,3 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
vic_pm_register(base, irq_start, resume_sources);
}
/*
* The PL190 cell from ARM has been modified by ST to handle 64 interrupts.
* The original cell has 32 interrupts, while the modified one has 64,
* replocating two blocks 0x00..0x1f in 0x20..0x3f. In that case
* the probe function is called twice, with base set to offset 000
* and 020 within the page. We call this "second block".
*/
static void __init vik_init_st(void __iomem *base, unsigned int irq_start,
u32 vic_sources)
{
unsigned int i;
int vic_2nd_block = ((unsigned long)base & ~PAGE_MASK) != 0;
/* Disable all interrupts initially. */
writel(0, base + VIC_INT_SELECT);
writel(0, base + VIC_INT_ENABLE);
writel(~0, base + VIC_INT_ENABLE_CLEAR);
writel(0, base + VIC_IRQ_STATUS);
writel(0, base + VIC_ITCR);
writel(~0, base + VIC_INT_SOFT_CLEAR);
/*
* Make sure we clear all existing interrupts. The vector registers
* in this cell are after the second block of general registers,
* so we can address them using standard offsets, but only from
* the second base address, which is 0x20 in the page
*/
if (vic_2nd_block) {
writel(0, base + VIC_PL190_VECT_ADDR);
for (i = 0; i < 19; i++) {
unsigned int value;
value = readl(base + VIC_PL190_VECT_ADDR);
writel(value, base + VIC_PL190_VECT_ADDR);
}
/* ST has 16 vectors as well, but we don't enable them by now */
for (i = 0; i < 16; i++) {
void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4);
writel(0, reg);
}
writel(32, base + VIC_PL190_DEF_VECT_ADDR);
}
for (i = 0; i < 32; i++) {
if (vic_sources & (1 << i)) {
unsigned int irq = irq_start + i;
set_irq_chip(irq, &vic_chip);
set_irq_chip_data(irq, base);
set_irq_handler(irq, handle_level_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
}
}
}
arch/arm/configs/am3517_evm_defconfig
浏览文件 @ e02c4fd3
......@@ -201,7 +201,7 @@ CONFIG_ARCH_OMAP3=y
# CONFIG_OMAP_DEBUG_POWERDOMAIN is not set
# CONFIG_OMAP_DEBUG_CLOCKDOMAIN is not set
CONFIG_OMAP_RESET_CLOCKS=y
# CONFIG_OMAP_MUX is not set
CONFIG_OMAP_MUX=y
# CONFIG_OMAP_MCBSP is not set
# CONFIG_OMAP_MBOX_FWK is not set
# CONFIG_OMAP_MPU_TIMER is not set
......@@ -590,7 +590,46 @@ CONFIG_HW_RANDOM=y
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_I2C is not set
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_HELPER_AUTO=y
#
# I2C Hardware Bus support
#
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_OMAP=y
# CONFIG_I2C_SIMTEC is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_STUB is not set
#
# Miscellaneous I2C Chip support
#
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set
# CONFIG_SPI is not set
#
......
arch/arm/configs/at572d940hfek_defconfig 0 → 100644
浏览文件 @ e02c4fd3
此差异已折叠。
arch/arm/configs/devkit8000_defconfig 0 → 100644
浏览文件 @ e02c4fd3
此差异已折叠。
arch/arm/configs/igep0020_defconfig
浏览文件 @ e02c4fd3
此差异已折叠。
arch/arm/configs/omap3_defconfig
浏览文件 @ e02c4fd3
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.32-rc8
# Tue Dec 1 14:04:02 2009
# Linux kernel version: 2.6.33-rc5
# Tue Jan 26 11:05:31 2010
#
CONFIG_ARM=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
......@@ -20,6 +20,8 @@ CONFIG_ARCH_HAS_CPUFREQ=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_OPROFILE_ARMV6=y
CONFIG_OPROFILE_ARM11_CORE=y
CONFIG_OPROFILE_ARMV7=y
CONFIG_VECTORS_BASE=0xffff0000
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
......@@ -33,6 +35,12 @@ CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_LZO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
......@@ -48,6 +56,7 @@ CONFIG_BSD_PROCESS_ACCT=y
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_TINY_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=32
# CONFIG_RCU_FANOUT_EXACT is not set
......@@ -69,6 +78,7 @@ CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
# CONFIG_RD_LZO is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
......@@ -133,14 +143,41 @@ CONFIG_LBDAF=y
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
# CONFIG_INLINE_SPIN_UNLOCK is not set
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
# CONFIG_INLINE_READ_UNLOCK is not set
# CONFIG_INLINE_READ_UNLOCK_BH is not set
# CONFIG_INLINE_READ_UNLOCK_IRQ is not set
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
# CONFIG_INLINE_WRITE_UNLOCK is not set
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
CONFIG_FREEZER=y
#
......@@ -169,6 +206,7 @@ CONFIG_MMU=y
# CONFIG_ARCH_IXP2000 is not set
# CONFIG_ARCH_IXP4XX is not set
# CONFIG_ARCH_L7200 is not set
# CONFIG_ARCH_DOVE is not set
# CONFIG_ARCH_KIRKWOOD is not set
# CONFIG_ARCH_LOKI is not set
# CONFIG_ARCH_MV78XX0 is not set
......@@ -191,21 +229,23 @@ CONFIG_MMU=y
# CONFIG_ARCH_DAVINCI is not set
CONFIG_ARCH_OMAP=y
# CONFIG_ARCH_BCMRING is not set
# CONFIG_ARCH_U8500 is not set
#
# TI OMAP Implementations
#
CONFIG_ARCH_OMAP_OTG=y
# CONFIG_ARCH_OMAP1 is not set
# CONFIG_ARCH_OMAP2 is not set
CONFIG_ARCH_OMAP2PLUS=y
CONFIG_ARCH_OMAP2=y
CONFIG_ARCH_OMAP3=y
# CONFIG_ARCH_OMAP4 is not set
CONFIG_ARCH_OMAP4=y
#
# OMAP Feature Selections
#
# CONFIG_OMAP_DEBUG_POWERDOMAIN is not set
# CONFIG_OMAP_DEBUG_CLOCKDOMAIN is not set
CONFIG_OMAP_DEBUG_DEVICES=y
CONFIG_OMAP_DEBUG_LEDS=y
CONFIG_OMAP_RESET_CLOCKS=y
CONFIG_OMAP_MUX=y
CONFIG_OMAP_MUX_DEBUG=y
......@@ -216,43 +256,66 @@ CONFIG_OMAP_MCBSP=y
CONFIG_OMAP_32K_TIMER=y
CONFIG_OMAP_32K_TIMER_HZ=128
CONFIG_OMAP_DM_TIMER=y
# CONFIG_OMAP_LL_DEBUG_UART1 is not set
# CONFIG_OMAP_LL_DEBUG_UART2 is not set
# CONFIG_OMAP_LL_DEBUG_UART3 is not set
CONFIG_OMAP_LL_DEBUG_NONE=y
# CONFIG_OMAP_PM_NONE is not set
CONFIG_OMAP_PM_NOOP=y
CONFIG_ARCH_OMAP34XX=y
CONFIG_MACH_OMAP_GENERIC=y
#
# OMAP Core Type
#
CONFIG_ARCH_OMAP2420=y
# CONFIG_ARCH_OMAP2430 is not set
CONFIG_ARCH_OMAP3430=y
CONFIG_OMAP_PACKAGE_CBB=y
CONFIG_OMAP_PACKAGE_CUS=y
CONFIG_OMAP_PACKAGE_CBP=y
#
# OMAP Board Type
#
CONFIG_MACH_OMAP2_TUSB6010=y
CONFIG_MACH_OMAP_H4=y
CONFIG_MACH_OMAP_APOLLON=y
# CONFIG_MACH_OMAP_2430SDP is not set
CONFIG_MACH_OMAP3_BEAGLE=y
CONFIG_MACH_OMAP_LDP=y
CONFIG_MACH_OVERO=y
CONFIG_MACH_OMAP3EVM=y
CONFIG_MACH_OMAP3517EVM=y
CONFIG_MACH_OMAP3_PANDORA=y
CONFIG_MACH_OMAP3_TOUCHBOOK=y
CONFIG_MACH_OMAP_3430SDP=y
CONFIG_MACH_NOKIA_N800=y
CONFIG_MACH_NOKIA_N810=y
CONFIG_MACH_NOKIA_N810_WIMAX=y
CONFIG_MACH_NOKIA_N8X0=y
CONFIG_MACH_NOKIA_RX51=y
CONFIG_MACH_OMAP_ZOOM2=y
CONFIG_MACH_OMAP_ZOOM3=y
CONFIG_MACH_CM_T35=y
CONFIG_MACH_IGEP0020=y
CONFIG_MACH_OMAP_3630SDP=y
CONFIG_MACH_OMAP_4430SDP=y
# CONFIG_OMAP3_EMU is not set
# CONFIG_OMAP3_SDRC_AC_TIMING is not set
#
# Processor Type
#
CONFIG_CPU_32v6K=y
CONFIG_CPU_V6=y
# CONFIG_CPU_32v6K is not set
CONFIG_CPU_V7=y
CONFIG_CPU_32v6=y
CONFIG_CPU_32v7=y
CONFIG_CPU_ABRT_EV6=y
CONFIG_CPU_ABRT_EV7=y
CONFIG_CPU_PABRT_V6=y
CONFIG_CPU_PABRT_V7=y
CONFIG_CPU_CACHE_V6=y
CONFIG_CPU_CACHE_V7=y
CONFIG_CPU_CACHE_VIPT=y
CONFIG_CPU_COPY_V6=y
CONFIG_CPU_TLB_V6=y
CONFIG_CPU_TLB_V7=y
CONFIG_CPU_HAS_ASID=y
CONFIG_CPU_CP15=y
......@@ -268,9 +331,11 @@ CONFIG_ARM_THUMBEE=y
# CONFIG_CPU_BPREDICT_DISABLE is not set
CONFIG_HAS_TLS_REG=y
CONFIG_ARM_L1_CACHE_SHIFT=6
# CONFIG_ARM_ERRATA_411920 is not set
# CONFIG_ARM_ERRATA_430973 is not set
# CONFIG_ARM_ERRATA_458693 is not set
# CONFIG_ARM_ERRATA_460075 is not set
CONFIG_ARM_GIC=y
CONFIG_COMMON_CLKDEV=y
#
......@@ -287,6 +352,7 @@ CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_SMP is not set
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
......@@ -298,6 +364,7 @@ CONFIG_HZ=128
# CONFIG_THUMB2_KERNEL is not set
CONFIG_AEABI=y
CONFIG_OABI_COMPAT=y
CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
# CONFIG_HIGHMEM is not set
......@@ -308,12 +375,10 @@ CONFIG_FLATMEM_MANUAL=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_SPLIT_PTLOCK_CPUS=999999
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_LEDS=y
......@@ -509,15 +574,18 @@ CONFIG_BT_HCIBPA10X=y
# CONFIG_BT_MRVL is not set
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_CFG80211=y
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_CFG80211_DEFAULT_PS=y
CONFIG_CFG80211_DEFAULT_PS_VALUE=1
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_WIRELESS_OLD_REGULATORY=y
CONFIG_WIRELESS_EXT=y
CONFIG_CFG80211_WEXT=y
CONFIG_WIRELESS_EXT_SYSFS=y
CONFIG_LIB80211=y
# CONFIG_LIB80211_DEBUG is not set
......@@ -671,6 +739,7 @@ CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
......@@ -681,9 +750,12 @@ CONFIG_BLK_DEV_RAM_SIZE=16384
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_MG_DISK is not set
CONFIG_MISC_DEVICES=y
# CONFIG_AD525X_DPOT is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_ISL29003 is not set
# CONFIG_DS1682 is not set
# CONFIG_TI_DAC7512 is not set
# CONFIG_C2PORT is not set
#
......@@ -694,6 +766,7 @@ CONFIG_MISC_DEVICES=y
CONFIG_EEPROM_LEGACY=y
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_IWMC3200TOP is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
......@@ -792,28 +865,26 @@ CONFIG_SMSC911X=y
CONFIG_NETDEV_1000=y
CONFIG_NETDEV_10000=y
CONFIG_WLAN=y
# CONFIG_WLAN_PRE80211 is not set
CONFIG_WLAN_80211=y
CONFIG_LIBERTAS=y
CONFIG_LIBERTAS_USB=y
CONFIG_LIBERTAS_SDIO=y
# CONFIG_LIBERTAS_SPI is not set
CONFIG_LIBERTAS_DEBUG=y
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_AT76C50X_USB is not set
# CONFIG_USB_ZD1201 is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_RTL8187 is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_P54_COMMON is not set
# CONFIG_ATH_COMMON is not set
# CONFIG_HOSTAP is not set
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_ZD1211RW is not set
# CONFIG_HOSTAP is not set
# CONFIG_IWM is not set
CONFIG_LIBERTAS=y
CONFIG_LIBERTAS_USB=y
CONFIG_LIBERTAS_SDIO=y
# CONFIG_LIBERTAS_SPI is not set
CONFIG_LIBERTAS_DEBUG=y
# CONFIG_P54_COMMON is not set
# CONFIG_RT2X00 is not set
# CONFIG_WL12XX is not set
# CONFIG_IWM is not set
# CONFIG_ZD1211RW is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
......@@ -861,6 +932,7 @@ CONFIG_USB_NET_ZAURUS=y
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
#
# Userland interfaces
......@@ -889,6 +961,7 @@ CONFIG_KEYBOARD_GPIO=y
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_OMAP is not set
CONFIG_KEYBOARD_TWL4030=y
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
......@@ -914,6 +987,7 @@ CONFIG_TOUCHSCREEN_ADS7846=y
# CONFIG_TOUCHSCREEN_AD7879_I2C is not set
# CONFIG_TOUCHSCREEN_AD7879_SPI is not set
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
......@@ -948,6 +1022,7 @@ CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_GAMEPORT is not set
#
......@@ -986,6 +1061,7 @@ CONFIG_UNIX98_PTYS=y
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_OMAP=y
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
......@@ -1024,7 +1100,6 @@ CONFIG_I2C_OMAP=y
#
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
......@@ -1040,6 +1115,8 @@ CONFIG_SPI_MASTER=y
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_GPIO is not set
CONFIG_SPI_OMAP24XX=y
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_DESIGNWARE is not set
#
# SPI Protocol Masters
......@@ -1067,6 +1144,7 @@ CONFIG_GPIO_SYSFS=y
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
CONFIG_GPIO_TWL4030=y
# CONFIG_GPIO_ADP5588 is not set
#
# PCI GPIO expanders:
......@@ -1141,6 +1219,7 @@ CONFIG_HWMON=y
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
......@@ -1166,6 +1245,7 @@ CONFIG_HWMON=y
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
......@@ -1179,6 +1259,7 @@ CONFIG_HWMON=y
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_LIS3_SPI is not set
# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
......@@ -1204,20 +1285,22 @@ CONFIG_SSB_POSSIBLE=y
#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
CONFIG_MFD_CORE=y
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_ASIC3 is not set
# CONFIG_HTC_EGPIO is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_TPS65010 is not set
# CONFIG_MENELAUS is not set
CONFIG_TWL4030_CORE=y
# CONFIG_TWL4030_POWER is not set
# CONFIG_TWL4030_CODEC is not set
CONFIG_TWL4030_CODEC=y
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_T7L66XB is not set
# CONFIG_MFD_TC6387XB is not set
# CONFIG_MFD_TC6393XB is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X is not set
# CONFIG_MFD_WM8350_I2C is not set
......@@ -1225,6 +1308,8 @@ CONFIG_TWL4030_CORE=y
# CONFIG_MFD_MC13783 is not set
# CONFIG_AB3100_CORE is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_88PM8607 is not set
# CONFIG_AB4500_CORE is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
......@@ -1232,6 +1317,7 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_BQ24022 is not set
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX8660 is not set
CONFIG_REGULATOR_TWL4030=y
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_TPS65023 is not set
......@@ -1267,6 +1353,7 @@ CONFIG_FB_TILEBLITTING=y
#
# CONFIG_FB_UVESA is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_TMIO is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
......@@ -1281,6 +1368,7 @@ CONFIG_FB_OMAP_079M3R=y
# CONFIG_FB_OMAP_LCD_MIPID is not set
# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
# CONFIG_OMAP2_DSS is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=y
# CONFIG_LCD_LMS283GF05 is not set
......@@ -1364,12 +1452,15 @@ CONFIG_SND_USB_AUDIO=y
CONFIG_SND_SOC=y
CONFIG_SND_OMAP_SOC=y
CONFIG_SND_OMAP_SOC_MCBSP=y
# CONFIG_SND_OMAP_SOC_N810 is not set
# CONFIG_SND_OMAP_SOC_OVERO is not set
# CONFIG_SND_OMAP_SOC_OMAP3EVM is not set
# CONFIG_SND_OMAP_SOC_AM3517EVM is not set
# CONFIG_SND_OMAP_SOC_SDP3430 is not set
CONFIG_SND_OMAP_SOC_OMAP3_PANDORA=y
# CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE is not set
# CONFIG_SND_OMAP_SOC_ZOOM2 is not set
# CONFIG_SND_OMAP_SOC_IGEP0020 is not set
CONFIG_SND_SOC_I2C_AND_SPI=y
# CONFIG_SND_SOC_ALL_CODECS is not set
CONFIG_SND_SOC_TWL4030=y
......@@ -1418,7 +1509,7 @@ CONFIG_USB_HID=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
# CONFIG_USB_ARCH_HAS_EHCI is not set
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
......@@ -1441,6 +1532,7 @@ CONFIG_USB_MON=y
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
......@@ -1556,16 +1648,18 @@ CONFIG_USB_GADGET_SELECTED=y
# CONFIG_USB_GADGET_LANGWELL is not set
# CONFIG_USB_GADGET_DUMMY_HCD is not set
CONFIG_USB_GADGET_DUALSPEED=y
CONFIG_USB_ZERO=y
CONFIG_USB_ZERO=m
# CONFIG_USB_ZERO_HNPTEST is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_ETH is not set
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FILE_STORAGE is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_MULTI is not set
#
# OTG and related infrastructure
......@@ -1573,6 +1667,7 @@ CONFIG_USB_ZERO=y
CONFIG_USB_OTG_UTILS=y
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_ISP1301_OMAP is not set
# CONFIG_USB_ULPI is not set
CONFIG_TWL4030_USB=y
CONFIG_NOP_USB_XCEIV=y
CONFIG_MMC=y
......@@ -1609,7 +1704,9 @@ CONFIG_LEDS_GPIO_PLATFORM=y
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_LT3593 is not set
#
# LED Triggers
......@@ -1653,6 +1750,7 @@ CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
CONFIG_RTC_DRV_TWL4030=y
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
......@@ -1683,7 +1781,9 @@ CONFIG_RTC_DRV_TWL4030=y
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
......@@ -1951,6 +2051,7 @@ CONFIG_DEBUG_INFO=y
# CONFIG_LKDTM is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
......@@ -1983,7 +2084,9 @@ CONFIG_ARM_UNWIND=y
# CONFIG_DEBUG_ERRORS is not set
# CONFIG_DEBUG_STACK_USAGE is not set
CONFIG_DEBUG_LL=y
# CONFIG_EARLY_PRINTK is not set
# CONFIG_DEBUG_ICEDCC is not set
# CONFIG_OC_ETM is not set
#
# Security options
......@@ -1993,9 +2096,12 @@ CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_NETWORK is not set
# CONFIG_SECURITY_PATH is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
# CONFIG_SECURITY_ROOTPLUG is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_DEFAULT_SECURITY_SELINUX is not set
# CONFIG_DEFAULT_SECURITY_SMACK is not set
# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y
#
......
arch/arm/configs/omap3_evm_defconfig
浏览文件 @ e02c4fd3
......@@ -187,6 +187,8 @@ CONFIG_ARCH_OMAP3=y
#
# OMAP Feature Selections
#
CONFIG_OMAP_SMARTREFLEX=y
# CONFIG_OMAP_SMARTREFLEX_TESTING is not set
# CONFIG_OMAP_DEBUG_POWERDOMAIN is not set
# CONFIG_OMAP_DEBUG_CLOCKDOMAIN is not set
CONFIG_OMAP_RESET_CLOCKS=y
......@@ -333,7 +335,7 @@ CONFIG_BINFMT_MISC=y
# Power management options
#
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
CONFIG_PM_DEBUG=y
CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
......@@ -1339,7 +1341,7 @@ CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
......
arch/arm/configs/omap_4430sdp_defconfig
浏览文件 @ e02c4fd3
......@@ -199,7 +199,7 @@ CONFIG_ARCH_OMAP4=y
#
# CONFIG_OMAP_RESET_CLOCKS is not set
# CONFIG_OMAP_MUX is not set
# CONFIG_OMAP_MCBSP is not set
CONFIG_OMAP_MCBSP=y
# CONFIG_OMAP_MBOX_FWK is not set
# CONFIG_OMAP_MPU_TIMER is not set
CONFIG_OMAP_32K_TIMER=y
......@@ -242,10 +242,13 @@ CONFIG_CPU_CP15_MMU=y
# CONFIG_CPU_DCACHE_DISABLE is not set
# CONFIG_CPU_BPREDICT_DISABLE is not set
CONFIG_HAS_TLS_REG=y
CONFIG_OUTER_CACHE=y
CONFIG_CACHE_L2X0=y
CONFIG_ARM_L1_CACHE_SHIFT=5
# CONFIG_ARM_ERRATA_430973 is not set
# CONFIG_ARM_ERRATA_458693 is not set
# CONFIG_ARM_ERRATA_460075 is not set
CONFIG_PL310_ERRATA_588369=y
CONFIG_ARM_GIC=y
#
......@@ -304,7 +307,7 @@ CONFIG_ALIGNMENT_TRAP=y
#
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="root=/dev/ram0 rw mem=128M console=ttyS0,115200n8 initrd=0x81600000,20M ramdisk_size=20480"
CONFIG_CMDLINE="root=/dev/ram0 rw mem=128M console=ttyS2,115200n8 initrd=0x81600000,20M ramdisk_size=20480"
# CONFIG_XIP_KERNEL is not set
# CONFIG_KEXEC is not set
......@@ -488,7 +491,8 @@ CONFIG_GPIOLIB=y
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_WATCHDOG=y
CONFIG_OMAP_WATCHDOG=y
CONFIG_SSB_POSSIBLE=y
#
......
arch/arm/configs/omap_zoom3_defconfig
浏览文件 @ e02c4fd3
......@@ -1136,7 +1136,7 @@ CONFIG_TWL4030_USB=y
# CONFIG_NOP_USB_XCEIV is not set
CONFIG_MMC=y
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set
CONFIG_MMC_UNSAFE_RESUME=y
#
# MMC/SD/SDIO Card Drivers
......@@ -1186,7 +1186,7 @@ CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_TWL4030 is not set
CONFIG_RTC_DRV_TWL4030=y
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
......@@ -1416,7 +1416,7 @@ CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
......
arch/arm/configs/rx51_defconfig
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......@@ -1354,7 +1354,7 @@ CONFIG_USB_OTG_UTILS=y
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_ISP1301_OMAP is not set
CONFIG_TWL4030_USB=y
CONFIG_MMC=y
CONFIG_MMC=m
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set
......@@ -1362,7 +1362,7 @@ CONFIG_MMC=y
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_BOUNCE=y
# CONFIG_MMC_BLOCK_BOUNCE is not set
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set
......
arch/arm/include/asm/atomic.h
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arch/arm/include/asm/cacheflush.h
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arch/arm/include/asm/clkdev.h
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......@@ -27,4 +27,7 @@ struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id,
void clkdev_add(struct clk_lookup *cl);
void clkdev_drop(struct clk_lookup *cl);
void clkdev_add_table(struct clk_lookup *, size_t);
int clk_add_alias(const char *, const char *, char *, struct device *);
#endif
arch/arm/include/asm/dma-mapping.h
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arch/arm/include/asm/io.h
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......@@ -69,9 +69,16 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
/*
* __arm_ioremap takes CPU physical address.
* __arm_ioremap_pfn takes a Page Frame Number and an offset into that page
* The _caller variety takes a __builtin_return_address(0) value for
* /proc/vmalloc to use - and should only be used in non-inline functions.
*/
extern void __iomem * __arm_ioremap_pfn(unsigned long, unsigned long, size_t, unsigned int);
extern void __iomem * __arm_ioremap(unsigned long, size_t, unsigned int);
extern void __iomem *__arm_ioremap_pfn_caller(unsigned long, unsigned long,
size_t, unsigned int, void *);
extern void __iomem *__arm_ioremap_caller(unsigned long, size_t, unsigned int,
void *);
extern void __iomem *__arm_ioremap_pfn(unsigned long, unsigned long, size_t, unsigned int);
extern void __iomem *__arm_ioremap(unsigned long, size_t, unsigned int);
extern void __iounmap(volatile void __iomem *addr);
/*
......
arch/arm/include/asm/mach/time.h
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......@@ -46,12 +46,4 @@ struct sys_timer {
extern struct sys_timer *system_timer;
extern void timer_tick(void);
/*
* Kernel time keeping support.
*/
struct timespec;
extern int (*set_rtc)(void);
extern void save_time_delta(struct timespec *delta, struct timespec *rtc);
extern void restore_time_delta(struct timespec *delta, struct timespec *rtc);
#endif
arch/arm/include/asm/memory.h
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arch/arm/include/asm/mmu.h
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......@@ -6,6 +6,7 @@
typedef struct {
#ifdef CONFIG_CPU_HAS_ASID
unsigned int id;
spinlock_t id_lock;
#endif
unsigned int kvm_seq;
} mm_context_t;
......
arch/arm/include/asm/mmu_context.h
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arch/arm/include/asm/page.h
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arch/arm/include/asm/perf_event.h 0 → 100644
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arch/arm/include/asm/pgtable-nommu.h
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......@@ -86,8 +86,8 @@ extern unsigned int kobjsize(const void *objp);
* All 32bit addresses are effectively valid for vmalloc...
* Sort of meaningless for non-VM targets.
*/
#define VMALLOC_START 0
#define VMALLOC_END 0xffffffff
#define VMALLOC_START 0UL
#define VMALLOC_END 0xffffffffUL
#define FIRST_USER_ADDRESS (0)
......
arch/arm/include/asm/pmu.h 0 → 100644
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arch/arm/include/asm/setup.h
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arch/arm/include/asm/smp_plat.h
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......@@ -13,4 +13,9 @@ static inline int tlb_ops_need_broadcast(void)
return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 2;
}
static inline int cache_ops_need_broadcast(void)
{
return ((read_cpuid_ext(CPUID_EXT_MMFR3) >> 12) & 0xf) < 1;
}
#endif
arch/arm/include/asm/spinlock.h
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arch/arm/include/asm/system.h
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arch/arm/include/asm/thread_info.h
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arch/arm/include/asm/tlbflush.h
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arch/arm/kernel/Makefile
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arch/arm/kernel/asm-offsets.c
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arch/arm/kernel/bios32.c
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arch/arm/kernel/debug.S
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arch/arm/kernel/leds.c 0 → 100644
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arch/arm/kernel/ptrace.c
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arch/arm/kernel/time.c
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arch/arm/kernel/traps.c
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arch/arm/kernel/vmlinux.lds.S
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arch/arm/mach-at91/Kconfig
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arch/arm/mach-at91/Makefile
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arch/arm/mach-at91/at572d940hf.c 0 → 100644
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arch/arm/mach-at91/board-at572d940hf_ek.c 0 → 100644
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arch/arm/mach-at91/clock.c
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arch/arm/mach-at91/generic.h
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arch/arm/mach-bcmring/core.c
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arch/arm/mach-davinci/Kconfig
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arch/arm/mach-davinci/clock.c
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arch/arm/mach-davinci/common.c
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arch/arm/mach-davinci/cpuidle.c
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arch/arm/mach-davinci/da830.c
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arch/arm/mach-davinci/da850.c
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arch/arm/mach-davinci/dm355.c
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arch/arm/mach-davinci/dm365.c
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arch/arm/mach-davinci/dm644x.c
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arch/arm/mach-davinci/dm646x.c
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arch/arm/mach-davinci/dma.c
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arch/arm/mach-davinci/include/mach/pm.h 0 → 100644
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arch/arm/mach-davinci/include/mach/spi.h 0 → 100644
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arch/arm/mach-davinci/io.c
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arch/arm/mach-davinci/psc.c
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arch/arm/mach-ep93xx/Kconfig
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arch/arm/mach-ep93xx/Makefile
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arch/arm/mach-ep93xx/clock.c
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arch/arm/mach-ep93xx/core.c
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arch/arm/mach-ep93xx/dma-m2p.c
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arch/arm/mach-ep93xx/edb93xx.c
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arch/arm/mach-ep93xx/gpio.c
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arch/arm/mach-ep93xx/snappercl15.c 0 → 100644
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arch/arm/mach-footbridge/common.c
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arch/arm/mach-integrator/core.c
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arch/arm/mach-iop13xx/io.c
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arch/arm/mach-ixp4xx/common.c
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arch/arm/mach-mmp/clock.c
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arch/arm/mach-mmp/clock.h
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arch/arm/mach-mmp/pxa168.c
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arch/arm/mach-mmp/pxa910.c
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arch/arm/mach-msm/io.c
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arch/arm/mach-mx1/clock.c
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arch/arm/mach-mx2/clock_imx21.c
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arch/arm/mach-mx2/clock_imx27.c
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arch/arm/mach-mx25/clock.c
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arch/arm/mach-mx3/clock-imx35.c
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arch/arm/mach-mx3/clock.c
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arch/arm/mach-mxc91231/clock.c
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arch/arm/mach-nomadik/cpu-8815.c
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arch/arm/mach-nuc93x/dev.c 0 → 100644
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arch/arm/mach-nuc93x/include/mach/clkdev.h 0 → 100644
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arch/arm/mach-nuc93x/include/mach/irqs.h 0 → 100644
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arch/arm/mach-omap1/Makefile
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arch/arm/mach-omap1/board-fsample.c
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arch/arm/mach-omap1/board-h2.c
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arch/arm/mach-omap1/board-h3.c
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arch/arm/mach-omap1/board-osk.c
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arch/arm/mach-omap1/board-palmte.c
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arch/arm/mach-omap1/board-palmtt.c
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arch/arm/mach-omap1/board-palmz71.c
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arch/arm/mach-omap1/board-sx1.c
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arch/arm/mach-omap1/clock.c
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arch/arm/mach-omap1/clock_data.c
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arch/arm/mach-omap2/board-apollon.c
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arch/arm/mach-omap2/board-cm-t35.c
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arch/arm/mach-omap2/board-n8x0.c
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arch/arm/mach-omap2/board-overo.c
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arch/arm/mach-omap2/board-rx51.c
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arch/arm/mach-omap2/board-zoom2.c
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arch/arm/mach-omap2/board-zoom3.c
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arch/arm/mach-omap2/clkt2xxx_apll.c 0 → 100644
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arch/arm/mach-omap2/clkt_clksel.c 0 → 100644
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arch/arm/mach-omap2/clock.c
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arch/arm/mach-omap2/clock.h
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arch/arm/mach-omap2/clock2xxx.c
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arch/arm/mach-omap2/clock34xx.c
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arch/arm/mach-omap2/clock34xx.h
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arch/arm/mach-omap2/clock44xx.h
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arch/arm/mach-omap2/clockdomain.c
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arch/arm/mach-omap2/clockdomains.h
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arch/arm/mach-omap2/cm.h
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arch/arm/mach-omap2/control.c
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arch/arm/mach-omap2/cpuidle34xx.c
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arch/arm/mach-omap2/devices.c
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arch/arm/mach-omap2/emu.c
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arch/arm/mach-omap2/gpmc.c
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arch/arm/mach-omap2/i2c.c
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arch/arm/mach-omap2/id.c
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arch/arm/mach-omap2/io.c
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arch/arm/mach-omap2/mailbox.c
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arch/arm/mach-omap2/mcbsp.c
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arch/arm/mach-omap2/mux.c
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arch/arm/mach-omap2/mux.h
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arch/arm/mach-omap2/omap_hwmod.c
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arch/arm/mach-omap2/opp2xxx.h
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arch/arm/mach-omap2/pm-debug.c
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arch/arm/mach-omap2/pm.h
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arch/arm/mach-omap2/pm24xx.c
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arch/arm/mach-omap2/pm34xx.c
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arch/arm/mach-omap2/powerdomain.c
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arch/arm/mach-omap2/powerdomains.h
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arch/arm/mach-omap2/prcm-common.h
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arch/arm/mach-omap2/prcm.c
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arch/arm/mach-omap2/prm.h
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arch/arm/mach-omap2/sdrc.c
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arch/arm/mach-omap2/serial.c
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arch/arm/mach-omap2/sleep34xx.S
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arch/arm/mach-omap2/timer-gp.c
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arch/arm/mach-omap2/timer-mpu.c
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arch/arm/mach-omap2/usb-musb.c
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arch/arm/mach-pnx4008/clock.c
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arch/arm/mach-pnx4008/clock.h
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arch/arm/mach-pnx4008/i2c.c
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arch/arm/mach-pnx4008/pm.c
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arch/arm/mach-pnx4008/time.c
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arch/arm/mach-pxa/clock.c
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arch/arm/mach-pxa/clock.h
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arch/arm/mach-pxa/eseries.c
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arch/arm/mach-pxa/pxa25x.c
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arch/arm/mach-pxa/pxa27x.c
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arch/arm/mach-pxa/pxa300.c
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arch/arm/mach-pxa/pxa320.c
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arch/arm/mach-pxa/pxa3xx.c
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arch/arm/mach-realview/core.c
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arch/arm/mach-u300/clock.c
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arch/arm/mach-u300/core.c
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arch/arm/mach-u300/gpio.c
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arch/arm/mach-u300/include/mach/dma_channels.h 0 → 100644
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arch/arm/mach-ux500/board-mop500.c
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arch/arm/mach-ux500/clock.c
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arch/arm/mach-ux500/cpu-u8500.c
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arch/arm/mach-versatile/core.c
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arch/arm/mach-w90x900/clock.c
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arch/arm/mach-w90x900/clock.h
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arch/arm/mach-w90x900/cpu.c
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arch/arm/mm/Kconfig
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arch/arm/mm/alignment.c
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arch/arm/mm/cache-fa.S
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arch/arm/mm/cache-l2x0.c
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arch/arm/mm/cache-v3.S
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arch/arm/mm/cache-v4.S
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arch/arm/mm/cache-v4wb.S
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arch/arm/mm/cache-v4wt.S
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arch/arm/mm/cache-v6.S
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arch/arm/mm/cache-v7.S
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arch/arm/mm/context.c
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arch/arm/mm/copypage-feroceon.c
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arch/arm/mm/copypage-v3.c
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arch/arm/mm/copypage-v4mc.c
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arch/arm/mm/copypage-v4wb.c
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arch/arm/mm/copypage-v4wt.c
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arch/arm/mm/copypage-v6.c
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arch/arm/mm/copypage-xsc3.c
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arch/arm/mm/copypage-xscale.c
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arch/arm/mm/dma-mapping.c
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arch/arm/mm/fault-armv.c
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arch/arm/mm/fault.c
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arch/arm/mm/flush.c
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arch/arm/mm/init.c
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arch/arm/mm/ioremap.c
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arch/arm/mm/mmu.c
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arch/arm/mm/nommu.c
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arch/arm/mm/proc-arm1020.S
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arch/arm/mm/proc-arm1020e.S
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arch/arm/mm/proc-arm1022.S
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arch/arm/mm/proc-arm1026.S
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arch/arm/mm/proc-arm920.S
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arch/arm/mm/proc-arm922.S
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arch/arm/mm/proc-arm925.S
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arch/arm/mm/proc-arm926.S
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arch/arm/mm/proc-arm940.S
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arch/arm/mm/proc-arm946.S
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arch/arm/mm/proc-feroceon.S
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arch/arm/mm/proc-mohawk.S
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arch/arm/mm/proc-xsc3.S
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arch/arm/mm/proc-xscale.S
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arch/arm/oprofile/op_model_mpcore.c
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arch/arm/oprofile/op_model_v6.c
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arch/arm/oprofile/op_model_v7.c
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arch/arm/oprofile/op_model_v7.h
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arch/arm/oprofile/op_model_xscale.c
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arch/arm/plat-iop/io.c
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arch/arm/plat-mxc/Makefile
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arch/arm/plat-mxc/ssi-fiq-ksym.c 0 → 100644
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arch/arm/plat-mxc/ssi-fiq.S 0 → 100644
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arch/arm/plat-nomadik/include/plat/i2c.h 0 → 100644
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arch/arm/plat-omap/Kconfig
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arch/arm/plat-omap/clock.c
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arch/arm/plat-omap/common.c
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arch/arm/plat-omap/devices.c
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arch/arm/plat-omap/dma.c
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arch/arm/plat-omap/dmtimer.c
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arch/arm/plat-omap/gpio.c
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arch/arm/plat-omap/i2c.c
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arch/arm/plat-omap/include/plat/dma-44xx.h 0 → 100644
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arch/arm/plat-omap/include/plat/flash.h 0 → 100644
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arch/arm/plat-omap/include/plat/irqs-44xx.h 0 → 100644
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arch/arm/plat-omap/include/plat/multi.h 0 → 100644
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arch/arm/plat-omap/io.c
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arch/arm/plat-omap/iommu.c
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arch/arm/plat-omap/iopgtable.h
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arch/arm/plat-omap/mailbox.c
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arch/arm/plat-omap/mcbsp.c
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arch/arm/plat-omap/omap_device.c
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arch/arm/plat-omap/sram.c
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arch/arm/plat-stmp3xxx/clock.c
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arch/arm/vfp/vfpmodule.c
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arch/avr32/include/asm/pgtable.h
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arch/avr32/mm/tlb.c
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arch/cris/arch-v10/kernel/irq.c
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arch/cris/arch-v32/kernel/irq.c
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arch/cris/arch-v32/kernel/pinmux.c
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arch/cris/arch-v32/mach-a3/pinmux.c
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arch/cris/arch-v32/mach-fs/pinmux.c
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arch/cris/include/asm/pgtable.h
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arch/cris/kernel/irq.c
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arch/frv/include/asm/pgtable.h
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arch/frv/mb93090-mb00/pci-frv.c
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arch/h8300/mm/memory.c
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arch/ia64/Kconfig
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arch/ia64/Makefile
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arch/ia64/configs/bigsur_defconfig
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arch/ia64/configs/generic_defconfig
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arch/mips/kernel/traps.c
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arch/mips/kernel/vpe.c
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arch/mips/lasat/picvue.h
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arch/mips/loongson/common/cmdline.c
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arch/mips/loongson/common/env.c
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arch/mips/loongson/common/init.c
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arch/mips/loongson/common/mem.c
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arch/mips/loongson/common/pm.c
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arch/mips/loongson/common/reset.c
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arch/mips/loongson/common/serial.c
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arch/mips/loongson/common/time.c
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arch/mips/loongson/lemote-2f/irq.c
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arch/mips/loongson/lemote-2f/pm.c
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arch/mips/math-emu/ieee754d.c
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arch/mips/math-emu/ieee754dp.c
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arch/mips/math-emu/ieee754sp.c
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arch/mips/math-emu/ieee754xcpt.c
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arch/mips/mm/c-octeon.c
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arch/mips/mm/cache.c
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arch/mips/mm/fault.c
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arch/mips/mm/hugetlbpage.c
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arch/mips/mm/init.c
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arch/mips/mm/page.c
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arch/mips/mm/pgtable-64.c
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arch/mips/mm/tlb-r4k.c
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arch/mips/mm/tlbex.c
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arch/mips/mm/uasm.c
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arch/mips/mti-malta/malta-int.c
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arch/mips/nxp/pnx833x/common/prom.c
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arch/mips/nxp/pnx8550/common/prom.c
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arch/mips/oprofile/common.c
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arch/mips/pci/fixup-cobalt.c
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arch/mips/pci/fixup-lemote2f.c
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arch/mips/pci/ops-loongson2.c
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arch/mips/pci/ops-pmcmsp.c
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arch/mips/pci/pci-bcm47xx.c
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arch/mips/pci/pci-octeon.c
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arch/mips/pci/pci.c
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arch/mips/pmc-sierra/yosemite/ht.c
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arch/mips/pmc-sierra/yosemite/smp.c
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arch/mips/power/cpu.c
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arch/mips/power/hibernate.S
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arch/mips/powertv/asic/asic_int.c
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arch/mips/powertv/powertv_setup.c
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arch/mips/sgi-ip27/ip27-klnuma.c
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arch/mips/sgi-ip27/ip27-nmi.c
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arch/mips/sgi-ip32/ip32-irq.c
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arch/mips/sibyte/bcm1480/irq.c
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arch/mips/sibyte/common/sb_tbprof.c
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arch/mips/sibyte/sb1250/irq.c
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arch/mips/sni/rm200.c
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arch/mips/txx9/generic/setup.c
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arch/mips/txx9/jmr3927/setup.c
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arch/mips/txx9/rbtx4927/setup.c
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arch/mips/txx9/rbtx4938/setup.c
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arch/mn10300/include/asm/pgtable.h
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arch/mn10300/mm/mmu-context.c
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arch/mn10300/unit-asb2305/pci.c
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arch/parisc/include/asm/pgtable.h
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arch/parisc/kernel/cache.c
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arch/parisc/kernel/pci.c
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arch/powerpc/Kconfig
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arch/powerpc/boot/dts/arches.dts
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arch/powerpc/boot/dts/gef_ppc9a.dts
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arch/powerpc/boot/dts/glacier.dts
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arch/powerpc/boot/dts/katmai.dts
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arch/powerpc/configs/ps3_defconfig
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arch/powerpc/include/asm/atomic.h
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arch/powerpc/include/asm/bitops.h
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arch/powerpc/include/asm/cputable.h
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arch/powerpc/include/asm/cputime.h
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arch/powerpc/include/asm/futex.h
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arch/powerpc/include/asm/hardirq.h
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arch/powerpc/include/asm/local.h
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arch/powerpc/include/asm/mpic.h
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arch/powerpc/include/asm/mutex.h
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arch/powerpc/include/asm/param.h
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arch/powerpc/include/asm/pgtable.h
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arch/powerpc/include/asm/ppc-pci.h
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arch/powerpc/include/asm/prom.h
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arch/powerpc/include/asm/ptrace.h
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arch/powerpc/include/asm/spinlock.h
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arch/powerpc/include/asm/synch.h
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arch/powerpc/include/asm/system.h
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arch/powerpc/include/asm/topology.h
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arch/powerpc/kernel/entry_64.S
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arch/powerpc/kernel/firmware.c
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arch/powerpc/kernel/irq.c
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arch/powerpc/kernel/kgdb.c
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arch/powerpc/kernel/kprobes.c
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arch/powerpc/kernel/lparcfg.c
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arch/powerpc/kernel/nvram_64.c
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arch/powerpc/kernel/of_platform.c
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arch/powerpc/kernel/pci-common.c
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arch/powerpc/kernel/pci_64.c
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arch/powerpc/kernel/pci_of_scan.c
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arch/powerpc/kernel/perf_event.c
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arch/powerpc/kernel/pmc.c
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arch/powerpc/kernel/process.c
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arch/powerpc/kernel/prom.c
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arch/powerpc/kernel/prom_init.c
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arch/powerpc/kernel/ptrace.c
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arch/powerpc/kernel/signal.c
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arch/powerpc/kernel/signal_32.c
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arch/powerpc/kernel/time.c
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arch/powerpc/kernel/traps.c
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arch/powerpc/kvm/Kconfig
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arch/powerpc/lib/copypage_64.S
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arch/powerpc/lib/copyuser_64.S
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arch/powerpc/lib/feature-fixups.c
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arch/powerpc/mm/40x_mmu.c
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arch/powerpc/mm/hash_native_64.c
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arch/powerpc/mm/mem.c
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arch/powerpc/mm/tlb_low_64e.S
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arch/powerpc/mm/tlb_nohash.c
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arch/powerpc/platforms/512x/clock.c
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