diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/ima_policy | 61 | ||||
| -rw-r--r-- | Documentation/DocBook/Makefile | 3 | ||||
| -rw-r--r-- | Documentation/DocBook/alsa-driver-api.tmpl (renamed from Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl) | 17 | ||||
| -rw-r--r-- | Documentation/DocBook/uio-howto.tmpl | 29 | ||||
| -rw-r--r-- | Documentation/DocBook/writing-an-alsa-driver.tmpl (renamed from Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl) | 52 | ||||
| -rw-r--r-- | Documentation/cpu-freq/governors.txt | 26 | ||||
| -rw-r--r-- | Documentation/cpu-freq/user-guide.txt | 12 | ||||
| -rw-r--r-- | Documentation/dynamic-debug-howto.txt | 240 | ||||
| -rw-r--r-- | Documentation/kernel-parameters.txt | 15 | ||||
| -rw-r--r-- | Documentation/sound/alsa/ALSA-Configuration.txt | 87 | ||||
| -rw-r--r-- | Documentation/sound/alsa/HD-Audio-Models.txt | 21 | ||||
| -rw-r--r-- | Documentation/sound/alsa/HD-Audio.txt | 47 | ||||
| -rw-r--r-- | Documentation/sound/alsa/soc/dapm.txt | 3 | ||||
| -rw-r--r-- | Documentation/sound/oss/CS4232 | 23 | ||||
| -rw-r--r-- | Documentation/sound/oss/Introduction | 2 |
15 files changed, 541 insertions, 97 deletions
diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy new file mode 100644 index 000000000000..6434f0df012e --- /dev/null +++ b/Documentation/ABI/testing/ima_policy @@ -0,0 +1,61 @@ +What: security/ima/policy +Date: May 2008 +Contact: Mimi Zohar <zohar@us.ibm.com> +Description: + The Trusted Computing Group(TCG) runtime Integrity + Measurement Architecture(IMA) maintains a list of hash + values of executables and other sensitive system files + loaded into the run-time of this system. At runtime, + the policy can be constrained based on LSM specific data. + Policies are loaded into the securityfs file ima/policy + by opening the file, writing the rules one at a time and + then closing the file. The new policy takes effect after + the file ima/policy is closed. + + rule format: action [condition ...] + + action: measure | dont_measure + condition:= base | lsm + base: [[func=] [mask=] [fsmagic=] [uid=]] + lsm: [[subj_user=] [subj_role=] [subj_type=] + [obj_user=] [obj_role=] [obj_type=]] + + base: func:= [BPRM_CHECK][FILE_MMAP][INODE_PERMISSION] + mask:= [MAY_READ] [MAY_WRITE] [MAY_APPEND] [MAY_EXEC] + fsmagic:= hex value + uid:= decimal value + lsm: are LSM specific + + default policy: + # PROC_SUPER_MAGIC + dont_measure fsmagic=0x9fa0 + # SYSFS_MAGIC + dont_measure fsmagic=0x62656572 + # DEBUGFS_MAGIC + dont_measure fsmagic=0x64626720 + # TMPFS_MAGIC + dont_measure fsmagic=0x01021994 + # SECURITYFS_MAGIC + dont_measure fsmagic=0x73636673 + + measure func=BPRM_CHECK + measure func=FILE_MMAP mask=MAY_EXEC + measure func=INODE_PERM mask=MAY_READ uid=0 + + The default policy measures all executables in bprm_check, + all files mmapped executable in file_mmap, and all files + open for read by root in inode_permission. + + Examples of LSM specific definitions: + + SELinux: + # SELINUX_MAGIC + dont_measure fsmagic=0xF97CFF8C + + dont_measure obj_type=var_log_t + dont_measure obj_type=auditd_log_t + measure subj_user=system_u func=INODE_PERM mask=MAY_READ + measure subj_role=system_r func=INODE_PERM mask=MAY_READ + + Smack: + measure subj_user=_ func=INODE_PERM mask=MAY_READ diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index 1462ed86d40a..a3a83d38f96f 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile @@ -12,7 +12,8 @@ DOCBOOKS := z8530book.xml mcabook.xml device-drivers.xml \ kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \ gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \ genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ - mac80211.xml debugobjects.xml sh.xml regulator.xml + mac80211.xml debugobjects.xml sh.xml regulator.xml \ + alsa-driver-api.xml writing-an-alsa-driver.xml ### # The build process is as follows (targets): diff --git a/Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl b/Documentation/DocBook/alsa-driver-api.tmpl index 9d644f7e241e..0230a96f0564 100644 --- a/Documentation/sound/alsa/DocBook/alsa-driver-api.tmpl +++ b/Documentation/DocBook/alsa-driver-api.tmpl @@ -1,11 +1,11 @@ -<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.1//EN"> - -<book> -<?dbhtml filename="index.html"> +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []> <!-- ****************************************************** --> <!-- Header --> <!-- ****************************************************** --> +<book id="ALSA-Driver-API"> <bookinfo> <title>The ALSA Driver API</title> @@ -35,6 +35,8 @@ </bookinfo> +<toc></toc> + <chapter><title>Management of Cards and Devices</title> <sect1><title>Card Management</title> !Esound/core/init.c @@ -71,6 +73,10 @@ !Esound/pci/ac97/ac97_codec.c !Esound/pci/ac97/ac97_pcm.c </sect1> + <sect1><title>Virtual Master Control API</title> +!Esound/core/vmaster.c +!Iinclude/sound/control.h + </sect1> </chapter> <chapter><title>MIDI API</title> <sect1><title>Raw MIDI API</title> @@ -89,6 +95,9 @@ <sect1><title>Hardware-Dependent Devices API</title> !Esound/core/hwdep.c </sect1> + <sect1><title>Jack Abstraction Layer API</title> +!Esound/core/jack.c + </sect1> <sect1><title>ISA DMA Helpers</title> !Esound/core/isadma.c </sect1> diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl index 52e1b79ce0e6..8f6e3b2403c7 100644 --- a/Documentation/DocBook/uio-howto.tmpl +++ b/Documentation/DocBook/uio-howto.tmpl @@ -42,6 +42,13 @@ GPL version 2. <revhistory> <revision> + <revnumber>0.8</revnumber> + <date>2008-12-24</date> + <authorinitials>hjk</authorinitials> + <revremark>Added name attributes in mem and portio sysfs directories. + </revremark> + </revision> + <revision> <revnumber>0.7</revnumber> <date>2008-12-23</date> <authorinitials>hjk</authorinitials> @@ -303,12 +310,19 @@ interested in translating it, please email me appear if the size of the mapping is not 0. </para> <para> - Each <filename>mapX/</filename> directory contains two read-only files - that show start address and size of the memory: + Each <filename>mapX/</filename> directory contains four read-only files + that show attributes of the memory: </para> <itemizedlist> <listitem> <para> + <filename>name</filename>: A string identifier for this mapping. This + is optional, the string can be empty. Drivers can set this to make it + easier for userspace to find the correct mapping. + </para> +</listitem> +<listitem> + <para> <filename>addr</filename>: The address of memory that can be mapped. </para> </listitem> @@ -366,12 +380,19 @@ offset = N * getpagesize(); <filename>/sys/class/uio/uioX/portio/</filename>. </para> <para> - Each <filename>portX/</filename> directory contains three read-only - files that show start, size, and type of the port region: + Each <filename>portX/</filename> directory contains four read-only + files that show name, start, size, and type of the port region: </para> <itemizedlist> <listitem> <para> + <filename>name</filename>: A string identifier for this port region. + The string is optional and can be empty. Drivers can set it to make it + easier for userspace to find a certain port region. + </para> +</listitem> +<listitem> + <para> <filename>start</filename>: The first port of this region. </para> </listitem> diff --git a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl b/Documentation/DocBook/writing-an-alsa-driver.tmpl index 87a7c07ab658..46b08fef3744 100644 --- a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl +++ b/Documentation/DocBook/writing-an-alsa-driver.tmpl @@ -1,11 +1,11 @@ -<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.1//EN"> - -<book> -<?dbhtml filename="index.html"> +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" + "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []> <!-- ****************************************************** --> <!-- Header --> <!-- ****************************************************** --> +<book id="Writing-an-ALSA-Driver"> <bookinfo> <title>Writing an ALSA Driver</title> <author> @@ -492,9 +492,9 @@ } /* (2) */ - card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); - if (card == NULL) - return -ENOMEM; + err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); + if (err < 0) + return err; /* (3) */ err = snd_mychip_create(card, pci, &chip); @@ -590,8 +590,9 @@ <programlisting> <![CDATA[ struct snd_card *card; + int err; .... - card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); + err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); ]]> </programlisting> </informalexample> @@ -809,26 +810,28 @@ <para> As mentioned above, to create a card instance, call - <function>snd_card_new()</function>. + <function>snd_card_create()</function>. <informalexample> <programlisting> <![CDATA[ struct snd_card *card; - card = snd_card_new(index, id, module, extra_size); + int err; + err = snd_card_create(index, id, module, extra_size, &card); ]]> </programlisting> </informalexample> </para> <para> - The function takes four arguments, the card-index number, the + The function takes five arguments, the card-index number, the id string, the module pointer (usually <constant>THIS_MODULE</constant>), - and the size of extra-data space. The last argument is used to + the size of extra-data space, and the pointer to return the + card instance. The extra_size argument is used to allocate card->private_data for the chip-specific data. Note that these data - are allocated by <function>snd_card_new()</function>. + are allocated by <function>snd_card_create()</function>. </para> </section> @@ -915,15 +918,16 @@ </para> <section id="card-management-chip-specific-snd-card-new"> - <title>1. Allocating via <function>snd_card_new()</function>.</title> + <title>1. Allocating via <function>snd_card_create()</function>.</title> <para> As mentioned above, you can pass the extra-data-length - to the 4th argument of <function>snd_card_new()</function>, i.e. + to the 4th argument of <function>snd_card_create()</function>, i.e. <informalexample> <programlisting> <![CDATA[ - card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(struct mychip)); + err = snd_card_create(index[dev], id[dev], THIS_MODULE, + sizeof(struct mychip), &card); ]]> </programlisting> </informalexample> @@ -952,8 +956,8 @@ <para> After allocating a card instance via - <function>snd_card_new()</function> (with - <constant>NULL</constant> on the 4th arg), call + <function>snd_card_create()</function> (with + <constant>0</constant> on the 4th arg), call <function>kzalloc()</function>. <informalexample> @@ -961,7 +965,7 @@ <![CDATA[ struct snd_card *card; struct mychip *chip; - card = snd_card_new(index[dev], id[dev], THIS_MODULE, NULL); + err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); ..... chip = kzalloc(sizeof(*chip), GFP_KERNEL); ]]> @@ -5750,8 +5754,9 @@ struct _snd_pcm_runtime { .... struct snd_card *card; struct mychip *chip; + int err; .... - card = snd_card_new(index[dev], id[dev], THIS_MODULE, NULL); + err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); .... chip = kzalloc(sizeof(*chip), GFP_KERNEL); .... @@ -5763,7 +5768,7 @@ struct _snd_pcm_runtime { </informalexample> When you created the chip data with - <function>snd_card_new()</function>, it's anyway accessible + <function>snd_card_create()</function>, it's anyway accessible via <structfield>private_data</structfield> field. <informalexample> @@ -5775,9 +5780,10 @@ struct _snd_pcm_runtime { .... struct snd_card *card; struct mychip *chip; + int err; .... - card = snd_card_new(index[dev], id[dev], THIS_MODULE, - sizeof(struct mychip)); + err = snd_card_create(index[dev], id[dev], THIS_MODULE, + sizeof(struct mychip), &card); .... chip = card->private_data; .... diff --git a/Documentation/cpu-freq/governors.txt b/Documentation/cpu-freq/governors.txt index 5b0cfa67aff9..ce73f3eb5ddb 100644 --- a/Documentation/cpu-freq/governors.txt +++ b/Documentation/cpu-freq/governors.txt @@ -117,10 +117,28 @@ accessible parameters: sampling_rate: measured in uS (10^-6 seconds), this is how often you want the kernel to look at the CPU usage and to make decisions on what to do about the frequency. Typically this is set to values of -around '10000' or more. - -show_sampling_rate_(min|max): the minimum and maximum sampling rates -available that you may set 'sampling_rate' to. +around '10000' or more. It's default value is (cmp. with users-guide.txt): +transition_latency * 1000 +The lowest value you can set is: +transition_latency * 100 or it may get restricted to a value where it +makes not sense for the kernel anymore to poll that often which depends +on your HZ config variable (HZ=1000: max=20000us, HZ=250: max=5000). +Be aware that transition latency is in ns and sampling_rate is in us, so you +get the same sysfs value by default. +Sampling rate should always get adjusted considering the transition latency +To set the sampling rate 750 times as high as the transition latency +in the bash (as said, 1000 is default), do: +echo `$(($(cat cpuinfo_transition_latency) * 750 / 1000)) \ + >ondemand/sampling_rate + +show_sampling_rate_(min|max): THIS INTERFACE IS DEPRECATED, DON'T USE IT. +You can use wider ranges now and the general +cpuinfo_transition_latency variable (cmp. with user-guide.txt) can be +used to obtain exactly the same info: +show_sampling_rate_min = transtition_latency * 500 / 1000 +show_sampling_rate_max = transtition_latency * 500000 / 1000 +(divided by 1000 is to illustrate that sampling rate is in us and +transition latency is exported ns). up_threshold: defines what the average CPU usage between the samplings of 'sampling_rate' needs to be for the kernel to make a decision on diff --git a/Documentation/cpu-freq/user-guide.txt b/Documentation/cpu-freq/user-guide.txt index 917918f84fc7..75f41193f3e1 100644 --- a/Documentation/cpu-freq/user-guide.txt +++ b/Documentation/cpu-freq/user-guide.txt @@ -152,6 +152,18 @@ cpuinfo_min_freq : this file shows the minimum operating frequency the processor can run at(in kHz) cpuinfo_max_freq : this file shows the maximum operating frequency the processor can run at(in kHz) +cpuinfo_transition_latency The time it takes on this CPU to + switch between two frequencies in nano + seconds. If unknown or known to be + that high that the driver does not + work with the ondemand governor, -1 + (CPUFREQ_ETERNAL) will be returned. + Using this information can be useful + to choose an appropriate polling + frequency for a kernel governor or + userspace daemon. Make sure to not + switch the frequency too often + resulting in performance loss. scaling_driver : this file shows what cpufreq driver is used to set the frequency on this CPU diff --git a/Documentation/dynamic-debug-howto.txt b/Documentation/dynamic-debug-howto.txt new file mode 100644 index 000000000000..674c5663d346 --- /dev/null +++ b/Documentation/dynamic-debug-howto.txt @@ -0,0 +1,240 @@ + +Introduction +============ + +This document describes how to use the dynamic debug (ddebug) feature. + +Dynamic debug is designed to allow you to dynamically enable/disable kernel +code to obtain additional kernel information. Currently, if +CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_debug() calls can be +dynamically enabled per-callsite. + +Dynamic debug has even more useful features: + + * Simple query language allows turning on and off debugging statements by + matching any combination of: + + - source filename + - function name + - line number (including ranges of line numbers) + - module name + - format string + + * Provides a debugfs control file: <debugfs>/dynamic_debug/control which can be + read to display the complete list of known debug statements, to help guide you + +Controlling dynamic debug Behaviour +=============================== + +The behaviour of pr_debug()/dev_debug()s are controlled via writing to a +control file in the 'debugfs' filesystem. Thus, you must first mount the debugfs +filesystem, in order to make use of this feature. Subsequently, we refer to the +control file as: <debugfs>/dynamic_debug/control. For example, if you want to +enable printing from source file 'svcsock.c', line 1603 you simply do: + +nullarbor:~ # echo 'file svcsock.c line 1603 +p' > + <debugfs>/dynamic_debug/control + +If you make a mistake with the syntax, the write will fail thus: + +nullarbor:~ # echo 'file svcsock.c wtf 1 +p' > + <debugfs>/dynamic_debug/control +-bash: echo: write error: Invalid argument + +Viewing Dynamic Debug Behaviour +=========================== + +You can view the currently configured behaviour of all the debug statements +via: + +nullarbor:~ # cat <debugfs>/dynamic_debug/control +# filename:lineno [module]function flags format +/usr/src/packages/BUILD/sgi-enhancednfs-1.4/default/net/sunrpc/svc_rdma.c:323 [svcxprt_rdma]svc_rdma_cleanup - "SVCRDMA Module Removed, deregister RPC RDMA transport\012" +/usr/src/packages/BUILD/sgi-enhancednfs-1.4/default/net/sunrpc/svc_rdma.c:341 [svcxprt_rdma]svc_rdma_init - "\011max_inline : %d\012" +/usr/src/packages/BUILD/sgi-enhancednfs-1.4/default/net/sunrpc/svc_rdma.c:340 [svcxprt_rdma]svc_rdma_init - "\011sq_depth : %d\012" +/usr/src/packages/BUILD/sgi-enhancednfs-1.4/default/net/sunrpc/svc_rdma.c:338 [svcxprt_rdma]svc_rdma_init - "\011max_requests : %d\012" +... + + +You can also apply standard Unix text manipulation filters to this +data, e.g. + +nullarbor:~ # grep -i rdma <debugfs>/dynamic_debug/control | wc -l +62 + +nullarbor:~ # grep -i tcp <debugfs>/dynamic_debug/control | wc -l +42 + +Note in particular that the third column shows the enabled behaviour +flags for each debug statement callsite (see below for definitions of the +flags). The default value, no extra behaviour enabled, is "-". So +you can view all the debug statement callsites with any non-default flags: + +nullarbor:~ # awk '$3 != "-"' <debugfs>/dynamic_debug/control +# filename:lineno [module]function flags format +/usr/src/packages/BUILD/sgi-enhancednfs-1.4/default/net/sunrpc/svcsock.c:1603 [sunrpc]svc_send p "svc_process: st_sendto returned %d\012" + + +Command Language Reference +========================== + +At the lexical level, a command comprises a sequence of words separated +by whitespace characters. Note that newlines are treated as word +separators and do *not* end a command or allow multiple commands to +be done together. So these are all equivalent: + +nullarbor:~ # echo -c 'file svcsock.c line 1603 +p' > + <debugfs>/dynamic_debug/control +nullarbor:~ # echo -c ' file svcsock.c line 1603 +p ' > + <debugfs>/dynamic_debug/control +nullarbor:~ # echo -c 'file svcsock.c\nline 1603 +p' > + <debugfs>/dynamic_debug/control +nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' > + <debugfs>/dynamic_debug/control + +Commands are bounded by a write() system call. If you want to do +multiple commands you need to do a separate "echo" for each, like: + +nullarbor:~ # echo 'file svcsock.c line 1603 +p' > /proc/dprintk ;\ +> echo 'file svcsock.c line 1563 +p' > /proc/dprintk + +or even like: + +nullarbor:~ # ( +> echo 'file svcsock.c line 1603 +p' ;\ +> echo 'file svcsock.c line 1563 +p' ;\ +> ) > /proc/dprintk + +At the syntactical level, a command comprises a sequence of match +specifications, followed by a flags change specification. + +command ::= match-spec* flags-spec + +The match-spec's are used to choose a subset of the known dprintk() +callsites to which to apply the flags-spec. Think of them as a query +with implicit ANDs between each pair. Note that an empty list of +match-specs is possible, but is not very useful because it will not +match any debug statement callsites. + +A match specification comprises a keyword, which controls the attribute +of the callsite to be compared, and a value to compare against. Possible +keywords are: + +match-spec ::= 'func' string | + 'file' string | + 'module' string | + 'format' string | + 'line' line-range + +line-range ::= lineno | + '-'lineno | + lineno'-' | + lineno'-'lineno +// Note: line-range cannot contain space, e.g. +// "1-30" is valid range but "1 - 30" is not. + +lineno ::= unsigned-int + +The meanings of each keyword are: + +func + The given string is compared against the function name + of each callsite. Example: + + func svc_tcp_accept + +file + The given string is compared against either the full + pathname or the basename of the source file of each + callsite. Examples: + + file svcsock.c + file /usr/src/packages/BUILD/sgi-enhancednfs-1.4/default/net/sunrpc/svcsock.c + +module + The given string is compared against the module name + of each callsite. The module name is the string as + seen in "lsmod", i.e. without the directory or the .ko + suffix and with '-' changed to '_'. Examples: + + module sunrpc + module nfsd + +format + The given string is searched for in the dynamic debug format + string. Note that the string does not need to match the + entire format, only some part. Whitespace and other + special characters can be escaped using C octal character + escape \ooo notation, e.g. the space character is \040. + Alternatively, the string can be enclosed in double quote + characters (") or single quote characters ('). + Examples: + + format svcrdma: // many of the NFS/RDMA server dprintks + format readahead // some dprintks in the readahead cache + format nfsd:\040SETATTR // one way to match a format with whitespace + format "nfsd: SETATTR" // a neater way to match a format with whitespace + format 'nfsd: SETATTR' // yet another way to match a format with whitespace + +line + The given line number or range of line numbers is compared + against the line number of each dprintk() callsite. A single + line number matches the callsite line number exactly. A + range of line numbers matches any callsite between the first + and last line number inclusive. An empty first number means + the first line in the file, an empty line number means the + last number in the file. Examples: + + line 1603 // exactly line 1603 + line 1600-1605 // the six lines from line 1600 to line 1605 + line -1605 // the 1605 lines from line 1 to line 1605 + line 1600- // all lines from line 1600 to the end of the file + +The flags specification comprises a change operation followed +by one or more flag characters. The change operation is one +of the characters: + +- + remove the given flags + ++ + add the given flags + += + set the flags to the given flags + +The flags are: + +p + Causes a printk() message to be emitted to dmesg + +Note the regexp ^[-+=][scp]+$ matches a flags specification. +Note also that there is no convenient syntax to remove all +the flags at once, you need to use "-psc". + +Examples +======== + +// enable the message at line 1603 of file svcsock.c +nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' > + <debugfs>/dynamic_debug/control + +// enable all the messages in file svcsock.c +nullarbor:~ # echo -n 'file svcsock.c +p' > + <debugfs>/dynamic_debug/control + +// enable all the messages in the NFS server module +nullarbor:~ # echo -n 'module nfsd +p' > + <debugfs>/dynamic_debug/control + +// enable all 12 messages in the function svc_process() +nullarbor:~ # echo -n 'func svc_process +p' > + <debugfs>/dynamic_debug/control + +// disable all 12 messages in the function svc_process() +nullarbor:~ # echo -n 'func svc_process -p' > + <debugfs>/dynamic_debug/control + +// enable messages for NFS calls READ, READLINK, READDIR and READDIR+. +nullarbor:~ # echo -n 'format "nfsd: READ" +p' > + <debugfs>/dynamic_debug/control diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 54f21a5c262b..1a29ff3df3c5 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -44,6 +44,7 @@ parameter is applicable: FB The frame buffer device is enabled. HW Appropriate hardware is enabled. IA-64 IA-64 architecture is enabled. + IMA Integrity measurement architecture is enabled. IOSCHED More than one I/O scheduler is enabled. IP_PNP IP DHCP, BOOTP, or RARP is enabled. ISAPNP ISA PnP code is enabled. @@ -902,6 +903,15 @@ and is between 256 and 4096 characters. It is defined in the file ihash_entries= [KNL] Set number of hash buckets for inode cache. + ima_audit= [IMA] + Format: { "0" | "1" } + 0 -- integrity auditing messages. (Default) + 1 -- enable informational integrity auditing messages. + + ima_hash= [IMA] + Formt: { "sha1" | "md5" } + default: "sha1" + in2000= [HW,SCSI] See header of drivers/scsi/in2000.c. @@ -1816,11 +1826,6 @@ and is between 256 and 4096 characters. It is defined in the file autoconfiguration. Ranges are in pairs (memory base and size). - dynamic_printk Enables pr_debug()/dev_dbg() calls if - CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled. - These can also be switched on/off via - <debugfs>/dynamic_printk/modules - print-fatal-signals= [KNL] debug: print fatal signals print-fatal-signals=1: print segfault info to diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index 841a9365d5fd..012858d2b119 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -346,6 +346,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. sbirq - IRQ # for CMI8330 chip (SB16) sbdma8 - 8bit DMA # for CMI8330 chip (SB16) sbdma16 - 16bit DMA # for CMI8330 chip (SB16) + fmport - (optional) OPL3 I/O port + mpuport - (optional) MPU401 I/O port + mpuirq - (optional) MPU401 irq # This module supports multiple cards and autoprobe. @@ -388,34 +391,11 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. The power-management is supported. - Module snd-cs4232 - ----------------- - - Module for sound cards based on CS4232/CS4232A ISA chips. - - isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) - - with isapnp=0, the following options are available: - - port - port # for CS4232 chip (PnP setup - 0x534) - cport - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00) - mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable - fm_port - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable - irq - IRQ # for CS4232 chip (5,7,9,11,12,15) - mpu_irq - IRQ # for MPU-401 UART (9,11,12,15) - dma1 - first DMA # for CS4232 chip (0,1,3) - dma2 - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable - - This module supports multiple cards. This module does not support autoprobe - (if ISA PnP is not used) thus main port must be specified!!! Other ports are - optional. - - The power-management is supported. - Module snd-cs4236 ----------------- - Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/ + Module for sound cards based on CS4232/CS4232A, + CS4235/CS4236/CS4236B/CS4237B/ CS4238B/CS4239 ISA chips. isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) @@ -437,6 +417,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. The power-management is supported. + This module is aliased as snd-cs4232 since it provides the old + snd-cs4232 functionality, too. + Module snd-cs4281 ----------------- @@ -606,6 +589,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. Module for ESS AudioDrive ES-1688 and ES-688 sound cards. port - port # for ES-1688 chip (0x220,0x240,0x260) + fm_port - port # for OPL3 (option; share the same port as default) mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default) irq - IRQ # for ES-1688 chip (5,7,9,10) mpu_irq - IRQ # for MPU-401 port (5,7,9,10) @@ -757,6 +741,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. model - force the model name position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF) probe_mask - Bitmask to probe codecs (default = -1, meaning all slots) + When the bit 8 (0x100) is set, the lower 8 bits are used + as the "fixed" codec slots; i.e. the driver probes the + slots regardless what hardware reports back probe_only - Only probing and no codec initialization (default=off); Useful to check the initial codec status for debugging bdl_pos_adj - Specifies the DMA IRQ timing delay in samples. @@ -1185,6 +1172,54 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. This module supports multiple devices and PnP. + Module snd-msnd-classic + ----------------------- + + Module for Turtle Beach MultiSound Classic, Tahiti or Monterey + soundcards. + + io - Port # for msnd-classic card + irq - IRQ # for msnd-classic card + mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000, + 0xe0000 or 0xe8000) + write_ndelay - enable write ndelay (default = 1) + calibrate_signal - calibrate signal (default = 0) + isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) + digital - Digital daughterboard present (default = 0) + cfg - Config port (0x250, 0x260 or 0x270) default = PnP + reset - Reset all devices + mpu_io - MPU401 I/O port + mpu_irq - MPU401 irq# + ide_io0 - IDE port #0 + ide_io1 - IDE port #1 + ide_irq - IDE irq# + joystick_io - Joystick I/O port + + The driver requires firmware files "turtlebeach/msndinit.bin" and + "turtlebeach/msndperm.bin" in the proper firmware directory. + + See Documentation/sound/oss/MultiSound for important information + about this driver. Note that it has been discontinued, but the + Voyetra Turtle Beach knowledge base entry for it is still available + at + http://www.turtlebeach.com/site/kb_ftp/790.asp + + Module snd-msnd-pinnacle + ------------------------ + + Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards. + + io - Port # for pinnacle/fiji card + irq - IRQ # for pinnalce/fiji card + mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000, + 0xe0000 or 0xe8000) + write_ndelay - enable write ndelay (default = 1) + calibrate_signal - calibrate signal (default = 0) + isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) + + The driver requires firmware files "turtlebeach/pndspini.bin" and + "turtlebeach/pndsperm.bin" in the proper firmware directory. + Module snd-mtpav ---------------- @@ -1824,7 +1859,7 @@ 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 and HDAV1.3 (Deluxe). + i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), and Essence STX. This module supports autoprobe and multiple cards. diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt index 0f5d26bea80f..8eec05bc079e 100644 --- a/Documentation/sound/alsa/HD-Audio-Models.txt +++ b/Documentation/sound/alsa/HD-Audio-Models.txt @@ -56,6 +56,7 @@ ALC262 sony-assamd Sony ASSAMD toshiba-s06 Toshiba S06 toshiba-rx1 Toshiba RX1 + tyan Tyan Thunder n6650W (S2915-E) ultra Samsung Q1 Ultra Vista model lenovo-3000 Lenovo 3000 y410 nec NEC Versa S9100 @@ -261,6 +262,8 @@ Conexant 5051 ============= laptop Basic Laptop config (default) hp HP Spartan laptop + hp-dv6736 HP dv6736 + lenovo-x200 Lenovo X200 laptop STAC9200 ======== @@ -278,6 +281,7 @@ STAC9200 gateway-m4 Gateway laptops with EAPD control gateway-m4-2 Gateway laptops with EAPD control panasonic Panasonic CF-74 + auto BIOS setup (default) STAC9205/9254 ============= @@ -285,6 +289,8 @@ STAC9205/9254 dell-m42 Dell (unknown) dell-m43 Dell Precision dell-m44 Dell Inspiron + eapd Keep EAPD on (e.g. Gateway T1616) + auto BIOS setup (default) STAC9220/9221 ============= @@ -308,6 +314,7 @@ STAC9220/9221 dell-d82 Dell (unknown) dell-m81 Dell (unknown) dell-m82 Dell XPS M1210 + auto BIOS setup (default) STAC9202/9250/9251 ================== @@ -319,6 +326,7 @@ STAC9202/9250/9251 m3 Some Gateway MX series laptops m5 Some Gateway MX series laptops (MP6954) m6 Some Gateway NX series laptops + auto BIOS setup (default) STAC9227/9228/9229/927x ======================= @@ -328,6 +336,7 @@ STAC9227/9228/9229/927x 5stack D965 5stack + SPDIF dell-3stack Dell Dimension E520 dell-bios Fixes with Dell BIOS setup + auto BIOS setup (default) STAC92HD71B* ============ @@ -335,7 +344,10 @@ STAC92HD71B* dell-m4-1 Dell desktops dell-m4-2 Dell desktops dell-m4-3 Dell desktops - hp-m4 HP dv laptops + hp-m4 HP mini 1000 + hp-dv5 HP dv series + hp-hdx HP HDX series + auto BIOS setup (default) STAC92HD73* =========== @@ -345,13 +357,16 @@ STAC92HD73* dell-m6-dmic Dell desktops/laptops with digital mics dell-m6 Dell desktops/laptops with both type of mics dell-eq Dell desktops/laptops + auto BIOS setup (default) STAC92HD83* =========== ref Reference board mic-ref Reference board with power managment for ports + dell-s14 Dell laptop + auto BIOS setup (default) STAC9872 ======== - vaio Setup for VAIO FE550G/SZ110 - vaio-ar Setup for VAIO AR + vaio VAIO laptop without SPDIF + auto BIOS setup (default) diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt index 8d68fff71839..c5948f2f9a25 100644 --- a/Documentation/sound/alsa/HD-Audio.txt +++ b/Documentation/sound/alsa/HD-Audio.txt @@ -109,6 +109,13 @@ slot, pass `probe_mask=1`. For the first and the third slots, pass Since 2.6.29 kernel, the driver has a more robust probing method, so this error might happen rarely, though. +On a machine with a broken BIOS, sometimes you need to force the +driver to probe the codec slots the hardware doesn't report for use. +In such a case, turn the bit 8 (0x100) of `probe_mask` option on. +Then the rest 8 bits are passed as the codec slots to probe +unconditionally. For example, `probe_mask=0x103` will force to probe +the codec slots 0 and 1 no matter what the hardware reports. + Interrupt Handling ~~~~~~~~~~~~~~~~~~ @@ -358,10 +365,26 @@ modelname:: to this file. init_verbs:: The extra verbs to execute at initialization. You can add a verb by - writing to this file. Pass tree numbers, nid, verb and parameter. + writing to this file. Pass three numbers: nid, verb and parameter + (separated with a space). hints:: - Shows hint strings for codec parsers for any use. Right now it's - not used. + Shows / stores hint strings for codec parsers for any use. + Its format is `key = value`. For example, passing `hp_detect = yes` + to IDT/STAC codec parser will result in the disablement of the + headphone detection. +init_pin_configs:: + Shows the initial pin default config values set by BIOS. +driver_pin_configs:: + Shows the pin default values set by the codec parser explicitly. + This doesn't show all pin values but only the changed values by + the parser. That is, if the parser doesn't change the pin default + config values by itself, this will contain nothing. +user_pin_configs:: + Shows the pin default config values to override the BIOS setup. + Writing this (with two numbers, NID and value) appends the new + value. The given will be used instead of the initial BIOS value at + the next reconfiguration time. Note that this config will override + even the driver pin configs, too. reconfig:: Triggers the codec re-configuration. When any value is written to this file, the driver re-initialize and parses the codec tree @@ -371,6 +394,14 @@ clear:: Resets the codec, removes the mixer elements and PCM stuff of the specified codec, and clear all init verbs and hints. +For example, when you want to change the pin default configuration +value of the pin widget 0x14 to 0x9993013f, and let the driver +re-configure based on that state, run like below: +------------------------------------------------------------------------ + # echo 0x14 0x9993013f > /sys/class/sound/hwC0D0/user_pin_configs + # echo 1 > /sys/class/sound/hwC0D0/reconfig +------------------------------------------------------------------------ + Power-Saving ~~~~~~~~~~~~ @@ -461,6 +492,16 @@ run with `--no-upload` option, and attach the generated file. There are some other useful options. See `--help` option output for details. +When a probe error occurs or when the driver obviously assigns a +mismatched model, it'd be helpful to load the driver with +`probe_only=1` option (at best after the cold reboot) and run +alsa-info at this state. With this option, the driver won't configure +the mixer and PCM but just tries to probe the codec slot. After +probing, the proc file is available, so you can get the raw codec +information before modified by the driver. Of course, the driver +isn't usable with `probe_only=1`. But you can continue the +configuration via hwdep sysfs file if hda-reconfig option is enabled. + hda-verb ~~~~~~~~ diff --git a/Documentation/sound/alsa/soc/dapm.txt b/Documentation/sound/alsa/soc/dapm.txt index 46f9684d0b29..9e6763264a2e 100644 --- a/Documentation/sound/alsa/soc/dapm.txt +++ b/Documentation/sound/alsa/soc/dapm.txt @@ -116,6 +116,9 @@ SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, wm8731_output_mixer_controls, ARRAY_SIZE(wm8731_output_mixer_controls)), +If you dont want the mixer elements prefixed with the name of the mixer widget, +you can use SND_SOC_DAPM_MIXER_NAMED_CTL instead. the parameters are the same +as for SND_SOC_DAPM_MIXER. 2.3 Platform/Machine domain Widgets ----------------------------------- diff --git a/Documentation/sound/oss/CS4232 b/Documentation/sound/oss/CS4232 deleted file mode 100644 index 7d6af7a5c1c2..000000000000 --- a/Documentation/sound/oss/CS4232 +++ /dev/null @@ -1,23 +0,0 @@ -To configure the Crystal CS423x sound chip and activate its DSP functions, -modules may be loaded in this order: - - modprobe sound - insmod ad1848 - insmod uart401 - insmod cs4232 io=* irq=* dma=* dma2=* - -This is the meaning of the parameters: - - io--I/O address of the Windows Sound System (normally 0x534) - irq--IRQ of this device - dma and dma2--DMA channels (DMA2 may be 0) - -On some cards, the board attempts to do non-PnP setup, and fails. If you -have problems, use Linux' PnP facilities. - -To get MIDI facilities add - - insmod opl3 io=* - -where "io" is the I/O address of the OPL3 synthesizer. This will be shown -in /proc/sys/pnp and is normally 0x388. diff --git a/Documentation/sound/oss/Introduction b/Documentation/sound/oss/Introduction index f04ba6bb7395..75d967ff9266 100644 --- a/Documentation/sound/oss/Introduction +++ b/Documentation/sound/oss/Introduction @@ -80,7 +80,7 @@ Notes: additional features. 2. The commercial OSS driver may be obtained from the site: - http://www/opensound.com. This may be used for cards that + http://www.opensound.com. This may be used for cards that are unsupported by the kernel driver, or may be used by other operating systems. |