diff options
Diffstat (limited to 'Documentation')
24 files changed, 232 insertions, 40 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 1b777b960492..1f89424c36a6 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -192,10 +192,6 @@ kernel-docs.txt - listing of various WWW + books that document kernel internals. kernel-parameters.txt - summary listing of command line / boot prompt args for the kernel. -keys-request-key.txt - - description of the kernel key request service. -keys.txt - - description of the kernel key retention service. kobject.txt - info of the kobject infrastructure of the Linux kernel. kprobes.txt @@ -294,6 +290,8 @@ scheduler/ - directory with info on the scheduler. scsi/ - directory with info on Linux scsi support. +security/ + - directory that contains security-related info serial/ - directory with info on the low level serial API. serial-console.txt diff --git a/Documentation/DocBook/dvb/dvbproperty.xml b/Documentation/DocBook/dvb/dvbproperty.xml index 52d5e3c7cf6c..b5365f61d69b 100644 --- a/Documentation/DocBook/dvb/dvbproperty.xml +++ b/Documentation/DocBook/dvb/dvbproperty.xml @@ -141,13 +141,15 @@ struct dtv_properties { </row></tbody></tgroup></informaltable> </section> +<section> + <title>Property types</title> <para> On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>, the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to get/set up to 64 properties. The actual meaning of each property is described on the next sections. </para> -<para>The Available frontend property types are:</para> +<para>The available frontend property types are:</para> <programlisting> #define DTV_UNDEFINED 0 #define DTV_TUNE 1 @@ -193,6 +195,7 @@ get/set up to 64 properties. The actual meaning of each property is described on #define DTV_ISDBT_LAYER_ENABLED 41 #define DTV_ISDBS_TS_ID 42 </programlisting> +</section> <section id="fe_property_common"> <title>Parameters that are common to all Digital TV standards</title> diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl index c8abb23ef1e7..e5fe09430fd9 100644 --- a/Documentation/DocBook/media-entities.tmpl +++ b/Documentation/DocBook/media-entities.tmpl @@ -293,6 +293,7 @@ <!ENTITY sub-yuyv SYSTEM "v4l/pixfmt-yuyv.xml"> <!ENTITY sub-yvyu SYSTEM "v4l/pixfmt-yvyu.xml"> <!ENTITY sub-srggb10 SYSTEM "v4l/pixfmt-srggb10.xml"> +<!ENTITY sub-srggb12 SYSTEM "v4l/pixfmt-srggb12.xml"> <!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml"> <!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml"> <!ENTITY sub-y12 SYSTEM "v4l/pixfmt-y12.xml"> @@ -373,9 +374,9 @@ <!ENTITY sub-media-indices SYSTEM "media-indices.tmpl"> <!ENTITY sub-media-controller SYSTEM "v4l/media-controller.xml"> -<!ENTITY sub-media-open SYSTEM "v4l/media-func-open.xml"> -<!ENTITY sub-media-close SYSTEM "v4l/media-func-close.xml"> -<!ENTITY sub-media-ioctl SYSTEM "v4l/media-func-ioctl.xml"> +<!ENTITY sub-media-func-open SYSTEM "v4l/media-func-open.xml"> +<!ENTITY sub-media-func-close SYSTEM "v4l/media-func-close.xml"> +<!ENTITY sub-media-func-ioctl SYSTEM "v4l/media-func-ioctl.xml"> <!ENTITY sub-media-ioc-device-info SYSTEM "v4l/media-ioc-device-info.xml"> <!ENTITY sub-media-ioc-enum-entities SYSTEM "v4l/media-ioc-enum-entities.xml"> <!ENTITY sub-media-ioc-enum-links SYSTEM "v4l/media-ioc-enum-links.xml"> diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl index 6f242d5dee9a..17910e2052ad 100644 --- a/Documentation/DocBook/mtdnand.tmpl +++ b/Documentation/DocBook/mtdnand.tmpl @@ -189,8 +189,7 @@ static void __iomem *baseaddr; <title>Partition defines</title> <para> If you want to divide your device into partitions, then - enable the configuration switch CONFIG_MTD_PARTITIONS and define - a partitioning scheme suitable to your board. + define a partitioning scheme suitable to your board. </para> <programlisting> #define NUM_PARTITIONS 2 diff --git a/Documentation/DocBook/v4l/media-controller.xml b/Documentation/DocBook/v4l/media-controller.xml index 2dc25e1d4089..873ac3a621f0 100644 --- a/Documentation/DocBook/v4l/media-controller.xml +++ b/Documentation/DocBook/v4l/media-controller.xml @@ -78,9 +78,9 @@ <appendix id="media-user-func"> <title>Function Reference</title> <!-- Keep this alphabetically sorted. --> - &sub-media-open; - &sub-media-close; - &sub-media-ioctl; + &sub-media-func-open; + &sub-media-func-close; + &sub-media-func-ioctl; <!-- All ioctls go here. --> &sub-media-ioc-device-info; &sub-media-ioc-enum-entities; diff --git a/Documentation/DocBook/v4l/pixfmt.xml b/Documentation/DocBook/v4l/pixfmt.xml index dbfe3b08435f..deb660207f94 100644 --- a/Documentation/DocBook/v4l/pixfmt.xml +++ b/Documentation/DocBook/v4l/pixfmt.xml @@ -673,6 +673,7 @@ access the palette, this must be done with ioctls of the Linux framebuffer API.< &sub-srggb8; &sub-sbggr16; &sub-srggb10; + &sub-srggb12; </section> <section id="yuv-formats"> diff --git a/Documentation/DocBook/v4l/subdev-formats.xml b/Documentation/DocBook/v4l/subdev-formats.xml index a26b10c07857..8d3409d2c632 100644 --- a/Documentation/DocBook/v4l/subdev-formats.xml +++ b/Documentation/DocBook/v4l/subdev-formats.xml @@ -2531,13 +2531,13 @@ <constant>_JPEG</constant> prefix the format code is made of the following information. <itemizedlist> - <listitem>The number of bus samples per entropy encoded byte.</listitem> - <listitem>The bus width.</listitem> + <listitem><para>The number of bus samples per entropy encoded byte.</para></listitem> + <listitem><para>The bus width.</para></listitem> </itemizedlist> + </para> - <para>For instance, for a JPEG baseline process and an 8-bit bus width - the format will be named <constant>V4L2_MBUS_FMT_JPEG_1X8</constant>. - </para> + <para>For instance, for a JPEG baseline process and an 8-bit bus width + the format will be named <constant>V4L2_MBUS_FMT_JPEG_1X8</constant>. </para> <para>The following table lists existing JPEG compressed formats.</para> diff --git a/Documentation/arm/Booting b/Documentation/arm/Booting index 76850295af8f..4e686a2ed91e 100644 --- a/Documentation/arm/Booting +++ b/Documentation/arm/Booting @@ -65,13 +65,19 @@ looks at the connected hardware is beyond the scope of this document. The boot loader must ultimately be able to provide a MACH_TYPE_xxx value to the kernel. (see linux/arch/arm/tools/mach-types). - -4. Setup the kernel tagged list -------------------------------- +4. Setup boot data +------------------ Existing boot loaders: OPTIONAL, HIGHLY RECOMMENDED New boot loaders: MANDATORY +The boot loader must provide either a tagged list or a dtb image for +passing configuration data to the kernel. The physical address of the +boot data is passed to the kernel in register r2. + +4a. Setup the kernel tagged list +-------------------------------- + The boot loader must create and initialise the kernel tagged list. A valid tagged list starts with ATAG_CORE and ends with ATAG_NONE. The ATAG_CORE tag may or may not be empty. An empty ATAG_CORE tag @@ -101,6 +107,24 @@ The tagged list must be placed in a region of memory where neither the kernel decompressor nor initrd 'bootp' program will overwrite it. The recommended placement is in the first 16KiB of RAM. +4b. Setup the device tree +------------------------- + +The boot loader must load a device tree image (dtb) into system ram +at a 64bit aligned address and initialize it with the boot data. The +dtb format is documented in Documentation/devicetree/booting-without-of.txt. +The kernel will look for the dtb magic value of 0xd00dfeed at the dtb +physical address to determine if a dtb has been passed instead of a +tagged list. + +The boot loader must pass at a minimum the size and location of the +system memory, and the root filesystem location. The dtb must be +placed in a region of memory where the kernel decompressor will not +overwrite it. The recommended placement is in the first 16KiB of RAM +with the caveat that it may not be located at physical address 0 since +the kernel interprets a value of 0 in r2 to mean neither a tagged list +nor a dtb were passed. + 5. Calling the kernel image --------------------------- @@ -125,7 +149,8 @@ In either case, the following conditions must be met: - CPU register settings r0 = 0, r1 = machine type number discovered in (3) above. - r2 = physical address of tagged list in system RAM. + r2 = physical address of tagged list in system RAM, or + physical address of device tree block (dtb) in system RAM - CPU mode All forms of interrupts must be disabled (IRQs and FIQs) diff --git a/Documentation/arm/Samsung/Overview.txt b/Documentation/arm/Samsung/Overview.txt index c3094ea51aa7..658abb258cef 100644 --- a/Documentation/arm/Samsung/Overview.txt +++ b/Documentation/arm/Samsung/Overview.txt @@ -14,7 +14,6 @@ Introduction - S3C24XX: See Documentation/arm/Samsung-S3C24XX/Overview.txt for full list - S3C64XX: S3C6400 and S3C6410 - S5P6440 - - S5P6442 - S5PC100 - S5PC110 / S5PV210 @@ -36,7 +35,6 @@ Configuration unifying all the SoCs into one kernel. s5p6440_defconfig - S5P6440 specific default configuration - s5p6442_defconfig - S5P6442 specific default configuration s5pc100_defconfig - S5PC100 specific default configuration s5pc110_defconfig - S5PC110 specific default configuration s5pv210_defconfig - S5PV210 specific default configuration diff --git a/Documentation/devicetree/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt index 50619a0720a8..7c1329de0596 100644 --- a/Documentation/devicetree/booting-without-of.txt +++ b/Documentation/devicetree/booting-without-of.txt @@ -12,8 +12,9 @@ Table of Contents ================= I - Introduction - 1) Entry point for arch/powerpc - 2) Entry point for arch/x86 + 1) Entry point for arch/arm + 2) Entry point for arch/powerpc + 3) Entry point for arch/x86 II - The DT block format 1) Header @@ -148,7 +149,46 @@ upgrades without significantly impacting the kernel code or cluttering it with special cases. -1) Entry point for arch/powerpc +1) Entry point for arch/arm +--------------------------- + + There is one single entry point to the kernel, at the start + of the kernel image. That entry point supports two calling + conventions. A summary of the interface is described here. A full + description of the boot requirements is documented in + Documentation/arm/Booting + + a) ATAGS interface. Minimal information is passed from firmware + to the kernel with a tagged list of predefined parameters. + + r0 : 0 + + r1 : Machine type number + + r2 : Physical address of tagged list in system RAM + + b) Entry with a flattened device-tree block. Firmware loads the + physical address of the flattened device tree block (dtb) into r2, + r1 is not used, but it is considered good practise to use a valid + machine number as described in Documentation/arm/Booting. + + r0 : 0 + + r1 : Valid machine type number. When using a device tree, + a single machine type number will often be assigned to + represent a class or family of SoCs. + + r2 : physical pointer to the device-tree block + (defined in chapter II) in RAM. Device tree can be located + anywhere in system RAM, but it should be aligned on a 64 bit + boundary. + + The kernel will differentiate between ATAGS and device tree booting by + reading the memory pointed to by r2 and looking for either the flattened + device tree block magic value (0xd00dfeed) or the ATAG_CORE value at + offset 0x4 from r2 (0x54410001). + +2) Entry point for arch/powerpc ------------------------------- There is one single entry point to the kernel, at the start @@ -226,7 +266,7 @@ it with special cases. cannot support both configurations with Book E and configurations with classic Powerpc architectures. -2) Entry point for arch/x86 +3) Entry point for arch/x86 ------------------------------- There is one single 32bit entry point to the kernel at code32_start, diff --git a/Documentation/dmaengine.txt b/Documentation/dmaengine.txt index 0c1c2f63c0a9..5a0cb1ef6164 100644 --- a/Documentation/dmaengine.txt +++ b/Documentation/dmaengine.txt @@ -1 +1,96 @@ -See Documentation/crypto/async-tx-api.txt + DMA Engine API Guide + ==================== + + Vinod Koul <vinod dot koul at intel.com> + +NOTE: For DMA Engine usage in async_tx please see: + Documentation/crypto/async-tx-api.txt + + +Below is a guide to device driver writers on how to use the Slave-DMA API of the +DMA Engine. This is applicable only for slave DMA usage only. + +The slave DMA usage consists of following steps +1. Allocate a DMA slave channel +2. Set slave and controller specific parameters +3. Get a descriptor for transaction +4. Submit the transaction and wait for callback notification + +1. Allocate a DMA slave channel +Channel allocation is slightly different in the slave DMA context, client +drivers typically need a channel from a particular DMA controller only and even +in some cases a specific channel is desired. To request a channel +dma_request_channel() API is used. + +Interface: +struct dma_chan *dma_request_channel(dma_cap_mask_t mask, + dma_filter_fn filter_fn, + void *filter_param); +where dma_filter_fn is defined as: +typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param); + +When the optional 'filter_fn' parameter is set to NULL dma_request_channel +simply returns the first channel that satisfies the capability mask. Otherwise, +when the mask parameter is insufficient for specifying the necessary channel, +the filter_fn routine can be used to disposition the available channels in the +system. The filter_fn routine is called once for each free channel in the +system. Upon seeing a suitable channel filter_fn returns DMA_ACK which flags +that channel to be the return value from dma_request_channel. A channel +allocated via this interface is exclusive to the caller, until +dma_release_channel() is called. + +2. Set slave and controller specific parameters +Next step is always to pass some specific information to the DMA driver. Most of +the generic information which a slave DMA can use is in struct dma_slave_config. +It allows the clients to specify DMA direction, DMA addresses, bus widths, DMA +burst lengths etc. If some DMA controllers have more parameters to be sent then +they should try to embed struct dma_slave_config in their controller specific +structure. That gives flexibility to client to pass more parameters, if +required. + +Interface: +int dmaengine_slave_config(struct dma_chan *chan, + struct dma_slave_config *config) + +3. Get a descriptor for transaction +For slave usage the various modes of slave transfers supported by the +DMA-engine are: +slave_sg - DMA a list of scatter gather buffers from/to a peripheral +dma_cyclic - Perform a cyclic DMA operation from/to a peripheral till the + operation is explicitly stopped. +The non NULL return of this transfer API represents a "descriptor" for the given +transaction. + +Interface: +struct dma_async_tx_descriptor *(*chan->device->device_prep_dma_sg)( + struct dma_chan *chan, + struct scatterlist *dst_sg, unsigned int dst_nents, + struct scatterlist *src_sg, unsigned int src_nents, + unsigned long flags); +struct dma_async_tx_descriptor *(*chan->device->device_prep_dma_cyclic)( + struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, + size_t period_len, enum dma_data_direction direction); + +4. Submit the transaction and wait for callback notification +To schedule the transaction to be scheduled by dma device, the "descriptor" +returned in above (3) needs to be submitted. +To tell the dma driver that a transaction is ready to be serviced, the +descriptor->submit() callback needs to be invoked. This chains the descriptor to +the pending queue. +The transactions in the pending queue can be activated by calling the +issue_pending API. If channel is idle then the first transaction in queue is +started and subsequent ones queued up. +On completion of the DMA operation the next in queue is submitted and a tasklet +triggered. The tasklet would then call the client driver completion callback +routine for notification, if set. +Interface: +void dma_async_issue_pending(struct dma_chan *chan); + +============================================================================== + +Additional usage notes for dma driver writers +1/ Although DMA engine specifies that completion callback routines cannot submit +any new operations, but typically for slave DMA subsequent transaction may not +be available for submit prior to callback routine being called. This requirement +is not a requirement for DMA-slave devices. But they should take care to drop +the spin-lock they might be holding before calling the callback routine diff --git a/Documentation/filesystems/nfs/idmapper.txt b/Documentation/filesystems/nfs/idmapper.txt index b9b4192ea8b5..9c8fd6148656 100644 --- a/Documentation/filesystems/nfs/idmapper.txt +++ b/Documentation/filesystems/nfs/idmapper.txt @@ -47,8 +47,8 @@ request-key will find the first matching line and corresponding program. In this case, /some/other/program will handle all uid lookups and /usr/sbin/nfs.idmap will handle gid, user, and group lookups. -See <file:Documentation/keys-request-keys.txt> for more information about the -request-key function. +See <file:Documentation/security/keys-request-keys.txt> for more information +about the request-key function. ========= diff --git a/Documentation/networking/dns_resolver.txt b/Documentation/networking/dns_resolver.txt index 04ca06325b08..7f531ad83285 100644 --- a/Documentation/networking/dns_resolver.txt +++ b/Documentation/networking/dns_resolver.txt @@ -139,8 +139,8 @@ the key will be discarded and recreated when the data it holds has expired. dns_query() returns a copy of the value attached to the key, or an error if that is indicated instead. -See <file:Documentation/keys-request-key.txt> for further information about -request-key function. +See <file:Documentation/security/keys-request-key.txt> for further +information about request-key function. ========= diff --git a/Documentation/power/regulator/machine.txt b/Documentation/power/regulator/machine.txt index bdec39b9bd75..b42419b52e44 100644 --- a/Documentation/power/regulator/machine.txt +++ b/Documentation/power/regulator/machine.txt @@ -53,11 +53,11 @@ static struct regulator_init_data regulator1_data = { Regulator-1 supplies power to Regulator-2. This relationship must be registered with the core so that Regulator-1 is also enabled when Consumer A enables its -supply (Regulator-2). The supply regulator is set by the supply_regulator_dev +supply (Regulator-2). The supply regulator is set by the supply_regulator field below:- static struct regulator_init_data regulator2_data = { - .supply_regulator_dev = &platform_regulator1_device.dev, + .supply_regulator = "regulator_name", .constraints = { .min_uV = 1800000, .max_uV = 2000000, diff --git a/Documentation/scsi/ChangeLog.megaraid_sas b/Documentation/scsi/ChangeLog.megaraid_sas index 4d9ce73ff730..9ed1d9d96783 100644 --- a/Documentation/scsi/ChangeLog.megaraid_sas +++ b/Documentation/scsi/ChangeLog.megaraid_sas @@ -1,3 +1,17 @@ +Release Date : Wed. May 11, 2011 17:00:00 PST 2010 - + (emaild-id:megaraidlinux@lsi.com) + Adam Radford +Current Version : 00.00.05.38-rc1 +Old Version : 00.00.05.34-rc1 + 1. Remove MSI-X black list, use MFI_REG_STATE.ready.msiEnable. + 2. Remove un-used function megasas_return_cmd_for_smid(). + 3. Check MFI_REG_STATE.fault.resetAdapter in megasas_reset_fusion(). + 4. Disable interrupts/free_irq() in megasas_shutdown(). + 5. Fix bug where AENs could be lost in probe() and resume(). + 6. Convert 6,10,12 byte CDB's to 16 byte CDB for large LBA's for FastPath + IO. + 7. Add 1078 OCR support. +------------------------------------------------------------------------------- Release Date : Thu. Feb 24, 2011 17:00:00 PST 2010 - (emaild-id:megaraidlinux@lsi.com) Adam Radford diff --git a/Documentation/security/00-INDEX b/Documentation/security/00-INDEX new file mode 100644 index 000000000000..19bc49439cac --- /dev/null +++ b/Documentation/security/00-INDEX @@ -0,0 +1,18 @@ +00-INDEX + - this file. +SELinux.txt + - how to get started with the SELinux security enhancement. +Smack.txt + - documentation on the Smack Linux Security Module. +apparmor.txt + - documentation on the AppArmor security extension. +credentials.txt + - documentation about credentials in Linux. +keys-request-key.txt + - description of the kernel key request service. +keys-trusted-encrypted.txt + - info on the Trusted and Encrypted keys in the kernel key ring service. +keys.txt + - description of the kernel key retention service. +tomoyo.txt + - documentation on the TOMOYO Linux Security Module. diff --git a/Documentation/SELinux.txt b/Documentation/security/SELinux.txt index 07eae00f3314..07eae00f3314 100644 --- a/Documentation/SELinux.txt +++ b/Documentation/security/SELinux.txt diff --git a/Documentation/Smack.txt b/Documentation/security/Smack.txt index e9dab41c0fe0..e9dab41c0fe0 100644 --- a/Documentation/Smack.txt +++ b/Documentation/security/Smack.txt diff --git a/Documentation/apparmor.txt b/Documentation/security/apparmor.txt index 93c1fd7d0635..93c1fd7d0635 100644 --- a/Documentation/apparmor.txt +++ b/Documentation/security/apparmor.txt diff --git a/Documentation/credentials.txt b/Documentation/security/credentials.txt index 995baf379c07..fc0366cbd7ce 100644 --- a/Documentation/credentials.txt +++ b/Documentation/security/credentials.txt @@ -216,7 +216,7 @@ The Linux kernel supports the following types of credentials: When a process accesses a key, if not already present, it will normally be cached on one of these keyrings for future accesses to find. - For more information on using keys, see Documentation/keys.txt. + For more information on using keys, see Documentation/security/keys.txt. (5) LSM diff --git a/Documentation/keys-request-key.txt b/Documentation/security/keys-request-key.txt index 69686ad12c66..51987bfecfed 100644 --- a/Documentation/keys-request-key.txt +++ b/Documentation/security/keys-request-key.txt @@ -3,8 +3,8 @@ =================== The key request service is part of the key retention service (refer to -Documentation/keys.txt). This document explains more fully how the requesting -algorithm works. +Documentation/security/keys.txt). This document explains more fully how +the requesting algorithm works. The process starts by either the kernel requesting a service by calling request_key*(): diff --git a/Documentation/keys-trusted-encrypted.txt b/Documentation/security/keys-trusted-encrypted.txt index 8fb79bc1ac4b..8fb79bc1ac4b 100644 --- a/Documentation/keys-trusted-encrypted.txt +++ b/Documentation/security/keys-trusted-encrypted.txt diff --git a/Documentation/keys.txt b/Documentation/security/keys.txt index 6523a9e6f293..4d75931d2d79 100644 --- a/Documentation/keys.txt +++ b/Documentation/security/keys.txt @@ -434,7 +434,7 @@ The main syscalls are: /sbin/request-key will be invoked in an attempt to obtain a key. The callout_info string will be passed as an argument to the program. - See also Documentation/keys-request-key.txt. + See also Documentation/security/keys-request-key.txt. The keyctl syscall functions are: @@ -864,7 +864,7 @@ payload contents" for more information. If successful, the key will have been attached to the default keyring for implicitly obtained request-key keys, as set by KEYCTL_SET_REQKEY_KEYRING. - See also Documentation/keys-request-key.txt. + See also Documentation/security/keys-request-key.txt. (*) To search for a key, passing auxiliary data to the upcaller, call: diff --git a/Documentation/tomoyo.txt b/Documentation/security/tomoyo.txt index 200a2d37cbc8..200a2d37cbc8 100644 --- a/Documentation/tomoyo.txt +++ b/Documentation/security/tomoyo.txt |