diff options
Diffstat (limited to 'Documentation')
31 files changed, 398 insertions, 84 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events new file mode 100644 index 000000000000..0adeb524c0d4 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events @@ -0,0 +1,62 @@ +What: /sys/devices/cpu/events/ + /sys/devices/cpu/events/branch-misses + /sys/devices/cpu/events/cache-references + /sys/devices/cpu/events/cache-misses + /sys/devices/cpu/events/stalled-cycles-frontend + /sys/devices/cpu/events/branch-instructions + /sys/devices/cpu/events/stalled-cycles-backend + /sys/devices/cpu/events/instructions + /sys/devices/cpu/events/cpu-cycles + +Date: 2013/01/08 + +Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> + +Description: Generic performance monitoring events + + A collection of performance monitoring events that may be + supported by many/most CPUs. These events can be monitored + using the 'perf(1)' tool. + + The contents of each file would look like: + + event=0xNNNN + + where 'N' is a hex digit and the number '0xNNNN' shows the + "raw code" for the perf event identified by the file's + "basename". + + +What: /sys/devices/cpu/events/PM_LD_MISS_L1 + /sys/devices/cpu/events/PM_LD_REF_L1 + /sys/devices/cpu/events/PM_CYC + /sys/devices/cpu/events/PM_BRU_FIN + /sys/devices/cpu/events/PM_GCT_NOSLOT_CYC + /sys/devices/cpu/events/PM_BRU_MPRED + /sys/devices/cpu/events/PM_INST_CMPL + /sys/devices/cpu/events/PM_CMPLU_STALL + +Date: 2013/01/08 + +Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> + Linux Powerpc mailing list <linuxppc-dev@ozlabs.org> + +Description: POWER-systems specific performance monitoring events + + A collection of performance monitoring events that may be + supported by the POWER CPU. These events can be monitored + using the 'perf(1)' tool. + + These events may not be supported by other CPUs. + + The contents of each file would look like: + + event=0xNNNN + + where 'N' is a hex digit and the number '0xNNNN' shows the + "raw code" for the perf event identified by the file's + "basename". + + Further, multiple terms like 'event=0xNNNN' can be specified + and separated with comma. All available terms are defined in + the /sys/bus/event_source/devices/<dev>/format file. diff --git a/Documentation/ABI/testing/sysfs-platform-ts5500 b/Documentation/ABI/testing/sysfs-platform-ts5500 new file mode 100644 index 000000000000..c88375a537a1 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-ts5500 @@ -0,0 +1,47 @@ +What: /sys/devices/platform/ts5500/adc +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Indicates the presence of an A/D Converter. If it is present, + it will display "1", otherwise "0". + +What: /sys/devices/platform/ts5500/ereset +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Indicates the presence of an external reset. If it is present, + it will display "1", otherwise "0". + +What: /sys/devices/platform/ts5500/id +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Product ID of the TS board. TS-5500 ID is 0x60. + +What: /sys/devices/platform/ts5500/jumpers +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Bitfield showing the jumpers' state. If a jumper is present, + the corresponding bit is set. For instance, 0x0e means jumpers + 2, 3 and 4 are set. + +What: /sys/devices/platform/ts5500/rs485 +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Indicates the presence of the RS485 option. If it is present, + it will display "1", otherwise "0". + +What: /sys/devices/platform/ts5500/sram +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Indicates the presence of the SRAM option. If it is present, + it will display "1", otherwise "0". diff --git a/Documentation/DocBook/media/v4l/driver.xml b/Documentation/DocBook/media/v4l/driver.xml index eacafe312cd2..7c6638bacedb 100644 --- a/Documentation/DocBook/media/v4l/driver.xml +++ b/Documentation/DocBook/media/v4l/driver.xml @@ -116,7 +116,7 @@ my_suspend (struct pci_dev * pci_dev, return 0; /* a negative value on error, 0 on success. */ } -static void __devexit +static void my_remove (struct pci_dev * pci_dev) { my_device *my = pci_get_drvdata (pci_dev); @@ -124,7 +124,7 @@ my_remove (struct pci_dev * pci_dev) /* Describe me. */ } -static int __devinit +static int my_probe (struct pci_dev * pci_dev, const struct pci_device_id * pci_id) { @@ -157,7 +157,7 @@ my_pci_driver = { .id_table = my_pci_device_ids, .probe = my_probe, - .remove = __devexit_p (my_remove), + .remove = my_remove, /* Power management functions. */ .suspend = my_suspend, diff --git a/Documentation/PCI/MSI-HOWTO.txt b/Documentation/PCI/MSI-HOWTO.txt index 53e6fca146d7..a09178086c30 100644 --- a/Documentation/PCI/MSI-HOWTO.txt +++ b/Documentation/PCI/MSI-HOWTO.txt @@ -127,15 +127,42 @@ on the number of vectors that can be allocated; pci_enable_msi_block() returns as soon as it finds any constraint that doesn't allow the call to succeed. -4.2.3 pci_disable_msi +4.2.3 pci_enable_msi_block_auto + +int pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *count) + +This variation on pci_enable_msi() call allows a device driver to request +the maximum possible number of MSIs. The MSI specification only allows +interrupts to be allocated in powers of two, up to a maximum of 2^5 (32). + +If this function returns a positive number, it indicates that it has +succeeded and the returned value is the number of allocated interrupts. In +this case, the function enables MSI on this device and updates dev->irq to +be the lowest of the new interrupts assigned to it. The other interrupts +assigned to the device are in the range dev->irq to dev->irq + returned +value - 1. + +If this function returns a negative number, it indicates an error and +the driver should not attempt to request any more MSI interrupts for +this device. + +If the device driver needs to know the number of interrupts the device +supports it can pass the pointer count where that number is stored. The +device driver must decide what action to take if pci_enable_msi_block_auto() +succeeds, but returns a value less than the number of interrupts supported. +If the device driver does not need to know the number of interrupts +supported, it can set the pointer count to NULL. + +4.2.4 pci_disable_msi void pci_disable_msi(struct pci_dev *dev) This function should be used to undo the effect of pci_enable_msi() or -pci_enable_msi_block(). Calling it restores dev->irq to the pin-based -interrupt number and frees the previously allocated message signaled -interrupt(s). The interrupt may subsequently be assigned to another -device, so drivers should not cache the value of dev->irq. +pci_enable_msi_block() or pci_enable_msi_block_auto(). Calling it restores +dev->irq to the pin-based interrupt number and frees the previously +allocated message signaled interrupt(s). The interrupt may subsequently be +assigned to another device, so drivers should not cache the value of +dev->irq. Before calling this function, a device driver must always call free_irq() on any interrupt for which it previously called request_irq(). diff --git a/Documentation/PCI/pci-iov-howto.txt b/Documentation/PCI/pci-iov-howto.txt index cfaca7e69893..86551cc72e03 100644 --- a/Documentation/PCI/pci-iov-howto.txt +++ b/Documentation/PCI/pci-iov-howto.txt @@ -76,7 +76,7 @@ To notify SR-IOV core of Virtual Function Migration: Following piece of code illustrates the usage of the SR-IOV API. -static int __devinit dev_probe(struct pci_dev *dev, const struct pci_device_id *id) +static int dev_probe(struct pci_dev *dev, const struct pci_device_id *id) { pci_enable_sriov(dev, NR_VIRTFN); @@ -85,7 +85,7 @@ static int __devinit dev_probe(struct pci_dev *dev, const struct pci_device_id * return 0; } -static void __devexit dev_remove(struct pci_dev *dev) +static void dev_remove(struct pci_dev *dev) { pci_disable_sriov(dev); @@ -131,7 +131,7 @@ static struct pci_driver dev_driver = { .name = "SR-IOV Physical Function driver", .id_table = dev_id_table, .probe = dev_probe, - .remove = __devexit_p(dev_remove), + .remove = dev_remove, .suspend = dev_suspend, .resume = dev_resume, .shutdown = dev_shutdown, diff --git a/Documentation/PCI/pci.txt b/Documentation/PCI/pci.txt index aa09e5476bba..bccf602a87f5 100644 --- a/Documentation/PCI/pci.txt +++ b/Documentation/PCI/pci.txt @@ -183,12 +183,6 @@ Please mark the initialization and cleanup functions where appropriate initializes. __exit Exit code. Ignored for non-modular drivers. - - __devinit Device initialization code. - Identical to __init if the kernel is not compiled - with CONFIG_HOTPLUG, normal function otherwise. - __devexit The same for __exit. - Tips on when/where to use the above attributes: o The module_init()/module_exit() functions (and all initialization functions called _only_ from these) @@ -196,20 +190,6 @@ Tips on when/where to use the above attributes: o Do not mark the struct pci_driver. - o The ID table array should be marked __devinitconst; this is done - automatically if the table is declared with DEFINE_PCI_DEVICE_TABLE(). - - o The probe() and remove() functions should be marked __devinit - and __devexit respectively. All initialization functions - exclusively called by the probe() routine, can be marked __devinit. - Ditto for remove() and __devexit. - - o If mydriver_remove() is marked with __devexit(), then all address - references to mydriver_remove must use __devexit_p(mydriver_remove) - (in the struct pci_driver declaration for example). - __devexit_p() will generate the function name _or_ NULL if the - function will be discarded. For an example, see drivers/net/tg3.c. - o Do NOT mark a function if you are not sure which mark to use. Better to not mark the function than mark the function wrong. diff --git a/Documentation/acpi/enumeration.txt b/Documentation/acpi/enumeration.txt index 4f27785ca0c8..54469bc81b1c 100644 --- a/Documentation/acpi/enumeration.txt +++ b/Documentation/acpi/enumeration.txt @@ -185,7 +185,7 @@ input driver: .acpi_match_table ACPI_PTR(mpu3050_acpi_match), }, .probe = mpu3050_probe, - .remove = __devexit_p(mpu3050_remove), + .remove = mpu3050_remove, .id_table = mpu3050_ids, }; diff --git a/Documentation/atomic_ops.txt b/Documentation/atomic_ops.txt index 27f2b21a9d5c..d9ca5be9b471 100644 --- a/Documentation/atomic_ops.txt +++ b/Documentation/atomic_ops.txt @@ -253,6 +253,8 @@ This performs an atomic exchange operation on the atomic variable v, setting the given new value. It returns the old value that the atomic variable v had just before the operation. +atomic_xchg requires explicit memory barriers around the operation. + int atomic_cmpxchg(atomic_t *v, int old, int new); This performs an atomic compare exchange operation on the atomic value v, diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt index 728c38c242d6..56fb62b09fc5 100644 --- a/Documentation/device-mapper/dm-raid.txt +++ b/Documentation/device-mapper/dm-raid.txt @@ -141,3 +141,4 @@ Version History 1.2.0 Handle creation of arrays that contain failed devices. 1.3.0 Added support for RAID 10 1.3.1 Allow device replacement/rebuild for RAID 10 +1.3.2 Fix/improve redundancy checking for RAID10 diff --git a/Documentation/devicetree/bindings/clock/imx23-clock.txt b/Documentation/devicetree/bindings/clock/imx23-clock.txt index baadbb11fe98..5083c0b834b2 100644 --- a/Documentation/devicetree/bindings/clock/imx23-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx23-clock.txt @@ -60,11 +60,6 @@ clks: clkctrl@80040000 { compatible = "fsl,imx23-clkctrl"; reg = <0x80040000 0x2000>; #clock-cells = <1>; - clock-output-names = - ... - "uart", /* 32 */ - ... - "end_of_list"; }; auart0: serial@8006c000 { diff --git a/Documentation/devicetree/bindings/clock/imx25-clock.txt b/Documentation/devicetree/bindings/clock/imx25-clock.txt index c2a3525ecb4e..db4f2f05c4d0 100644 --- a/Documentation/devicetree/bindings/clock/imx25-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx25-clock.txt @@ -146,10 +146,6 @@ clks: ccm@53f80000 { compatible = "fsl,imx25-ccm"; reg = <0x53f80000 0x4000>; interrupts = <31>; - clock-output-names = ... - "uart_ipg", - "uart_serial", - ...; }; uart1: serial@43f90000 { diff --git a/Documentation/devicetree/bindings/clock/imx28-clock.txt b/Documentation/devicetree/bindings/clock/imx28-clock.txt index 52a49a4a50b3..e6587af62ff0 100644 --- a/Documentation/devicetree/bindings/clock/imx28-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx28-clock.txt @@ -83,11 +83,6 @@ clks: clkctrl@80040000 { compatible = "fsl,imx28-clkctrl"; reg = <0x80040000 0x2000>; #clock-cells = <1>; - clock-output-names = - ... - "uart", /* 45 */ - ... - "end_of_list"; }; auart0: serial@8006a000 { diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt index d77b4e68dc42..f73fdf595568 100644 --- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt @@ -211,10 +211,6 @@ clks: ccm@020c4000 { reg = <0x020c4000 0x4000>; interrupts = <0 87 0x04 0 88 0x04>; #clock-cells = <1>; - clock-output-names = ... - "uart_ipg", - "uart_serial", - ...; }; uart1: serial@02020000 { diff --git a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt index 558cdf3c9abc..d4eab9227ea4 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt @@ -1,4 +1,19 @@ -GPIO line that should be set high/low to power off a device +Driver a GPIO line that can be used to turn the power off. + +The driver supports both level triggered and edge triggered power off. +At driver load time, the driver will request the given gpio line and +install a pm_power_off handler. If the optional properties 'input' is +not found, the GPIO line will be driven in the inactive +state. Otherwise its configured as an input. + +When the pm_power_off is called, the gpio is configured as an output, +and drive active, so triggering a level triggered power off +condition. This will also cause an inactive->active edge condition, so +triggering positive edge triggered power off. After a delay of 100ms, +the GPIO is set to inactive, thus causing an active->inactive edge, +triggering negative edge triggered power off. After another 100ms +delay the GPIO is driver active again. If the power is still on and +the CPU still running after a 3000ms delay, a WARN_ON(1) is emitted. Required properties: - compatible : should be "gpio-poweroff". @@ -13,10 +28,9 @@ Optional properties: property is not specified, the GPIO is initialized as an output in its inactive state. - Examples: gpio-poweroff { compatible = "gpio-poweroff"; - gpios = <&gpio 4 0>; /* GPIO 4 Active Low */ + gpios = <&gpio 4 0>; }; diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt index 3a268127b054..bc50899e0c81 100644 --- a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt @@ -81,7 +81,8 @@ PA31 TXD4 Required properties for pin configuration node: - atmel,pins: 4 integers array, represents a group of pins mux and config setting. The format is atmel,pins = <PIN_BANK PIN_BANK_NUM PERIPH CONFIG>. - The PERIPH 0 means gpio. + The PERIPH 0 means gpio, PERIPH 1 is periph A, PERIPH 2 is periph B... + PIN_BANK 0 is pioA, PIN_BANK 1 is pioB... Bits used for CONFIG: PULL_UP (1 << 0): indicate this pin need a pull up. @@ -126,7 +127,7 @@ pinctrl@fffff400 { pinctrl_dbgu: dbgu-0 { atmel,pins = <1 14 0x1 0x0 /* PB14 periph A */ - 1 15 0x1 0x1>; /* PB15 periph with pullup */ + 1 15 0x1 0x1>; /* PB15 periph A with pullup */ }; }; }; diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-sirf.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-sirf.txt new file mode 100644 index 000000000000..c596a6ad3285 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-sirf.txt @@ -0,0 +1,47 @@ +CSR SiRFprimaII pinmux controller + +Required properties: +- compatible : "sirf,prima2-pinctrl" +- reg : Address range of the pinctrl registers +- interrupts : Interrupts used by every GPIO group +- gpio-controller : Indicates this device is a GPIO controller +- interrupt-controller : Marks the device node as an interrupt controller +Optional properties: +- sirf,pullups : if n-th bit of m-th bank is set, set a pullup on GPIO-n of bank m +- sirf,pulldowns : if n-th bit of m-th bank is set, set a pulldown on GPIO-n of bank m + +Please refer to pinctrl-bindings.txt in this directory for details of the common +pinctrl bindings used by client devices. + +SiRFprimaII's pinmux nodes act as a container for an abitrary number of subnodes. +Each of these subnodes represents some desired configuration for a group of pins. + +Required subnode-properties: +- sirf,pins : An array of strings. Each string contains the name of a group. +- sirf,function: A string containing the name of the function to mux to the + group. + + Valid values for group and function names can be found from looking at the + group and function arrays in driver files: + drivers/pinctrl/pinctrl-sirf.c + +For example, pinctrl might have subnodes like the following: + uart2_pins_a: uart2@0 { + uart { + sirf,pins = "uart2grp"; + sirf,function = "uart2"; + }; + }; + uart2_noflow_pins_a: uart2@1 { + uart { + sirf,pins = "uart2_nostreamctrlgrp"; + sirf,function = "uart2_nostreamctrl"; + }; + }; + +For a specific board, if it wants to use uart2 without hardware flow control, +it can add the following to its board-specific .dts file. +uart2: uart@0xb0070000 { + pinctrl-names = "default"; + pinctrl-0 = <&uart2_noflow_pins_a>; +} diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index 8fbd8b46ee34..dcf338e62b71 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -175,9 +175,9 @@ consists of multiple segments as described below. align with the zone size <-| |-> align with the segment size _________________________________________________________________________ - | | | Node | Segment | Segment | | - | Superblock | Checkpoint | Address | Info. | Summary | Main | - | (SB) | (CP) | Table (NAT) | Table (SIT) | Area (SSA) | | + | | | Segment | Node | Segment | | + | Superblock | Checkpoint | Info. | Address | Summary | Main | + | (SB) | (CP) | Table (SIT) | Table (NAT) | Area (SSA) | | |____________|_____2______|______N______|______N______|______N_____|__N___| . . . . @@ -200,14 +200,14 @@ consists of multiple segments as described below. : It contains file system information, bitmaps for valid NAT/SIT sets, orphan inode lists, and summary entries of current active segments. -- Node Address Table (NAT) - : It is composed of a block address table for all the node blocks stored in - Main area. - - Segment Information Table (SIT) : It contains segment information such as valid block count and bitmap for the validity of all the blocks. +- Node Address Table (NAT) + : It is composed of a block address table for all the node blocks stored in + Main area. + - Segment Summary Area (SSA) : It contains summary entries which contains the owner information of all the data and node blocks stored in Main area. @@ -236,13 +236,13 @@ For file system consistency, each CP points to which NAT and SIT copies are valid, as shown as below. +--------+----------+---------+ - | CP | NAT | SIT | + | CP | SIT | NAT | +--------+----------+---------+ . . . . . . . . . . . . +-------+-------+--------+--------+--------+--------+ - | CP #0 | CP #1 | NAT #0 | NAT #1 | SIT #0 | SIT #1 | + | CP #0 | CP #1 | SIT #0 | SIT #1 | NAT #0 | NAT #1 | +-------+-------+--------+--------+--------+--------+ | ^ ^ | | | diff --git a/Documentation/hid/hid-sensor.txt b/Documentation/hid/hid-sensor.txt index 948b0989c433..948b0989c433 100755..100644 --- a/Documentation/hid/hid-sensor.txt +++ b/Documentation/hid/hid-sensor.txt diff --git a/Documentation/i2c/instantiating-devices b/Documentation/i2c/instantiating-devices index abf63615ee05..22182660dda7 100644 --- a/Documentation/i2c/instantiating-devices +++ b/Documentation/i2c/instantiating-devices @@ -91,7 +91,7 @@ Example (from the nxp OHCI driver): static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END }; -static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev) +static int usb_hcd_nxp_probe(struct platform_device *pdev) { (...) struct i2c_adapter *i2c_adap; diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 363e348bff9b..6c723811c0a0 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2438,7 +2438,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. real-time workloads. It can also improve energy efficiency for asymmetric multiprocessors. - rcu_nocbs_poll [KNL,BOOT] + rcu_nocb_poll [KNL,BOOT] Rather than requiring that offloaded CPUs (specified by rcu_nocbs= above) explicitly awaken the corresponding "rcuoN" kthreads, diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index 3c4e1b3b80a1..fa5d8a9ae205 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -1685,6 +1685,7 @@ explicit lock operations, described later). These include: xchg(); cmpxchg(); + atomic_xchg(); atomic_cmpxchg(); atomic_inc_return(); atomic_dec_return(); diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index dd52d516cb89..dbca66182089 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -36,7 +36,7 @@ neigh/default/unres_qlen_bytes - INTEGER The maximum number of bytes which may be used by packets queued for each unresolved address by other network layers. (added in linux 3.3) - Seting negative value is meaningless and will retrun error. + Setting negative value is meaningless and will return error. Default: 65536 Bytes(64KB) neigh/default/unres_qlen - INTEGER @@ -215,7 +215,7 @@ tcp_ecn - INTEGER Possible values are: 0 Disable ECN. Neither initiate nor accept ECN. 1 Always request ECN on outgoing connection attempts. - 2 Enable ECN when requested by incomming connections + 2 Enable ECN when requested by incoming connections but do not request ECN on outgoing connections. Default: 2 @@ -503,7 +503,7 @@ tcp_fastopen - INTEGER tcp_syn_retries - INTEGER Number of times initial SYNs for an active TCP connection attempt will be retransmitted. Should not be higher than 255. Default value - is 6, which corresponds to 63seconds till the last restransmission + is 6, which corresponds to 63seconds till the last retransmission with the current initial RTO of 1second. With this the final timeout for an active TCP connection attempt will happen after 127seconds. @@ -1331,6 +1331,12 @@ force_tllao - BOOLEAN race condition where the sender deletes the cached link-layer address prior to receiving a response to a previous solicitation." +ndisc_notify - BOOLEAN + Define mode for notification of address and device changes. + 0 - (default): do nothing + 1 - Generate unsolicited neighbour advertisements when device is brought + up or hardware address changes. + icmp/*: ratelimit - INTEGER Limit the maximal rates for sending ICMPv6 packets. @@ -1530,7 +1536,7 @@ cookie_hmac_alg - STRING * sha1 * none Ability to assign md5 or sha1 as the selected alg is predicated on the - configuarion of those algorithms at build time (CONFIG_CRYPTO_MD5 and + configuration of those algorithms at build time (CONFIG_CRYPTO_MD5 and CONFIG_CRYPTO_SHA1). Default: Dependent on configuration. MD5 if available, else SHA1 if @@ -1548,7 +1554,7 @@ rcvbuf_policy - INTEGER blocking. 1: rcvbuf space is per association - 0: recbuf space is per socket + 0: rcvbuf space is per socket Default: 0 diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 4abe83e1045a..03591a750f99 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -642,12 +642,13 @@ out the following operations: * During system suspend it calls pm_runtime_get_noresume() and pm_runtime_barrier() for every device right before executing the subsystem-level .suspend() callback for it. In addition to that it calls - pm_runtime_disable() for every device right after executing the - subsystem-level .suspend() callback for it. + __pm_runtime_disable() with 'false' as the second argument for every device + right before executing the subsystem-level .suspend_late() callback for it. * During system resume it calls pm_runtime_enable() and pm_runtime_put_sync() - for every device right before and right after executing the subsystem-level - .resume() callback for it, respectively. + for every device right after executing the subsystem-level .resume_early() + callback and right after executing the subsystem-level .resume() callback + for it, respectively. 7. Generic subsystem callbacks diff --git a/Documentation/rpmsg.txt b/Documentation/rpmsg.txt index 409d9f964c5b..f7edc3aa1e92 100644 --- a/Documentation/rpmsg.txt +++ b/Documentation/rpmsg.txt @@ -236,7 +236,7 @@ static int rpmsg_sample_probe(struct rpmsg_channel *rpdev) return 0; } -static void __devexit rpmsg_sample_remove(struct rpmsg_channel *rpdev) +static void rpmsg_sample_remove(struct rpmsg_channel *rpdev) { dev_info(&rpdev->dev, "rpmsg sample client driver is removed\n"); } @@ -253,7 +253,7 @@ static struct rpmsg_driver rpmsg_sample_client = { .id_table = rpmsg_driver_sample_id_table, .probe = rpmsg_sample_probe, .callback = rpmsg_sample_cb, - .remove = __devexit_p(rpmsg_sample_remove), + .remove = rpmsg_sample_remove, }; static int __init init(void) diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary index 7312ec14dd89..2331eb214146 100644 --- a/Documentation/spi/spi-summary +++ b/Documentation/spi/spi-summary @@ -345,7 +345,7 @@ SPI protocol drivers somewhat resemble platform device drivers: }, .probe = CHIP_probe, - .remove = __devexit_p(CHIP_remove), + .remove = CHIP_remove, .suspend = CHIP_suspend, .resume = CHIP_resume, }; @@ -355,7 +355,7 @@ device whose board_info gave a modalias of "CHIP". Your probe() code might look like this unless you're creating a device which is managing a bus (appearing under /sys/class/spi_master). - static int __devinit CHIP_probe(struct spi_device *spi) + static int CHIP_probe(struct spi_device *spi) { struct CHIP *chip; struct CHIP_platform_data *pdata; diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 2907ba6c3607..ccd42589e124 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -38,6 +38,7 @@ show up in /proc/sys/kernel: - l2cr [ PPC only ] - modprobe ==> Documentation/debugging-modules.txt - modules_disabled +- msg_next_id [ sysv ipc ] - msgmax - msgmnb - msgmni @@ -62,7 +63,9 @@ show up in /proc/sys/kernel: - rtsig-max - rtsig-nr - sem +- sem_next_id [ sysv ipc ] - sg-big-buff [ generic SCSI device (sg) ] +- shm_next_id [ sysv ipc ] - shm_rmid_forced - shmall - shmmax [ sysv ipc ] @@ -320,6 +323,22 @@ to false. ============================================================== +msg_next_id, sem_next_id, and shm_next_id: + +These three toggles allows to specify desired id for next allocated IPC +object: message, semaphore or shared memory respectively. + +By default they are equal to -1, which means generic allocation logic. +Possible values to set are in range {0..INT_MAX}. + +Notes: +1) kernel doesn't guarantee, that new object will have desired id. So, +it's up to userspace, how to handle an object with "wrong" id. +2) Toggle with non-default value will be set back to -1 by kernel after +successful IPC object allocation. + +============================================================== + nmi_watchdog: Enables/Disables the NMI watchdog on x86 systems. When the value is @@ -542,6 +561,19 @@ are doing anyway :) ============================================================== +shmall: + +This parameter sets the total amount of shared memory pages that +can be used system wide. Hence, SHMALL should always be at least +ceil(shmmax/PAGE_SIZE). + +If you are not sure what the default PAGE_SIZE is on your Linux +system, you can run the following command: + +# getconf PAGE_SIZE + +============================================================== + shmmax: This value can be used to query and set the run time limit diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt index 6f51fed45f2d..53d6a3c51d87 100644 --- a/Documentation/trace/ftrace.txt +++ b/Documentation/trace/ftrace.txt @@ -1842,6 +1842,89 @@ an error. # cat buffer_size_kb 85 +Snapshot +-------- +CONFIG_TRACER_SNAPSHOT makes a generic snapshot feature +available to all non latency tracers. (Latency tracers which +record max latency, such as "irqsoff" or "wakeup", can't use +this feature, since those are already using the snapshot +mechanism internally.) + +Snapshot preserves a current trace buffer at a particular point +in time without stopping tracing. Ftrace swaps the current +buffer with a spare buffer, and tracing continues in the new +current (=previous spare) buffer. + +The following debugfs files in "tracing" are related to this +feature: + + snapshot: + + This is used to take a snapshot and to read the output + of the snapshot. Echo 1 into this file to allocate a + spare buffer and to take a snapshot (swap), then read + the snapshot from this file in the same format as + "trace" (described above in the section "The File + System"). Both reads snapshot and tracing are executable + in parallel. When the spare buffer is allocated, echoing + 0 frees it, and echoing else (positive) values clear the + snapshot contents. + More details are shown in the table below. + + status\input | 0 | 1 | else | + --------------+------------+------------+------------+ + not allocated |(do nothing)| alloc+swap | EINVAL | + --------------+------------+------------+------------+ + allocated | free | swap | clear | + --------------+------------+------------+------------+ + +Here is an example of using the snapshot feature. + + # echo 1 > events/sched/enable + # echo 1 > snapshot + # cat snapshot +# tracer: nop +# +# entries-in-buffer/entries-written: 71/71 #P:8 +# +# _-----=> irqs-off +# / _----=> need-resched +# | / _---=> hardirq/softirq +# || / _--=> preempt-depth +# ||| / delay +# TASK-PID CPU# |||| TIMESTAMP FUNCTION +# | | | |||| | | + <idle>-0 [005] d... 2440.603828: sched_switch: prev_comm=swapper/5 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2242 next_prio=120 + sleep-2242 [005] d... 2440.603846: sched_switch: prev_comm=snapshot-test-2 prev_pid=2242 prev_prio=120 prev_state=R ==> next_comm=kworker/5:1 next_pid=60 next_prio=120 +[...] + <idle>-0 [002] d... 2440.707230: sched_switch: prev_comm=swapper/2 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2229 next_prio=120 + + # cat trace +# tracer: nop +# +# entries-in-buffer/entries-written: 77/77 #P:8 +# +# _-----=> irqs-off +# / _----=> need-resched +# | / _---=> hardirq/softirq +# || / _--=> preempt-depth +# ||| / delay +# TASK-PID CPU# |||| TIMESTAMP FUNCTION +# | | | |||| | | + <idle>-0 [007] d... 2440.707395: sched_switch: prev_comm=swapper/7 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2243 next_prio=120 + snapshot-test-2-2229 [002] d... 2440.707438: sched_switch: prev_comm=snapshot-test-2 prev_pid=2229 prev_prio=120 prev_state=S ==> next_comm=swapper/2 next_pid=0 next_prio=120 +[...] + + +If you try to use this snapshot feature when current tracer is +one of the latency tracers, you will get the following results. + + # echo wakeup > current_tracer + # echo 1 > snapshot +bash: echo: write error: Device or resource busy + # cat snapshot +cat: snapshot: Device or resource busy + ----------- More details can be found in the source code, in the diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 32bfe926e8d7..b89567ad04b7 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt @@ -174,8 +174,7 @@ The recommended approach is as follows: static atomic_t drv_instance = ATOMIC_INIT(0); -static int __devinit drv_probe(struct pci_dev *pdev, - const struct pci_device_id *pci_id) +static int drv_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) { ... state->instance = atomic_inc_return(&drv_instance) - 1; diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt index 406d82d5d2bb..b443f1de0e5a 100644 --- a/Documentation/x86/boot.txt +++ b/Documentation/x86/boot.txt @@ -57,6 +57,10 @@ Protocol 2.10: (Kernel 2.6.31) Added a protocol for relaxed alignment Protocol 2.11: (Kernel 3.6) Added a field for offset of EFI handover protocol entry point. +Protocol 2.12: (Kernel 3.8) Added the xloadflags field and extension fields + to struct boot_params for for loading bzImage and ramdisk + above 4G in 64bit. + **** MEMORY LAYOUT The traditional memory map for the kernel loader, used for Image or @@ -182,7 +186,7 @@ Offset Proto Name Meaning 0230/4 2.05+ kernel_alignment Physical addr alignment required for kernel 0234/1 2.05+ relocatable_kernel Whether kernel is relocatable or not 0235/1 2.10+ min_alignment Minimum alignment, as a power of two -0236/2 N/A pad3 Unused +0236/2 2.12+ xloadflags Boot protocol option flags 0238/4 2.06+ cmdline_size Maximum size of the kernel command line 023C/4 2.07+ hardware_subarch Hardware subarchitecture 0240/8 2.07+ hardware_subarch_data Subarchitecture-specific data @@ -386,6 +390,7 @@ Protocol: 2.00+ F Special (0xFF = undefined) 10 Reserved 11 Minimal Linux Bootloader <http://sebastian-plotz.blogspot.de> + 12 OVMF UEFI virtualization stack Please contact <hpa@zytor.com> if you need a bootloader ID value assigned. @@ -582,6 +587,27 @@ Protocol: 2.10+ misaligned kernel. Therefore, a loader should typically try each power-of-two alignment from kernel_alignment down to this alignment. +Field name: xloadflags +Type: read +Offset/size: 0x236/2 +Protocol: 2.12+ + + This field is a bitmask. + + Bit 0 (read): XLF_KERNEL_64 + - If 1, this kernel has the legacy 64-bit entry point at 0x200. + + Bit 1 (read): XLF_CAN_BE_LOADED_ABOVE_4G + - If 1, kernel/boot_params/cmdline/ramdisk can be above 4G. + + Bit 2 (read): XLF_EFI_HANDOVER_32 + - If 1, the kernel supports the 32-bit EFI handoff entry point + given at handover_offset. + + Bit 3 (read): XLF_EFI_HANDOVER_64 + - If 1, the kernel supports the 64-bit EFI handoff entry point + given at handover_offset + 0x200. + Field name: cmdline_size Type: read Offset/size: 0x238/4 diff --git a/Documentation/x86/zero-page.txt b/Documentation/x86/zero-page.txt index cf5437deda81..199f453cb4de 100644 --- a/Documentation/x86/zero-page.txt +++ b/Documentation/x86/zero-page.txt @@ -19,6 +19,9 @@ Offset Proto Name Meaning 090/010 ALL hd1_info hd1 disk parameter, OBSOLETE!! 0A0/010 ALL sys_desc_table System description table (struct sys_desc_table) 0B0/010 ALL olpc_ofw_header OLPC's OpenFirmware CIF and friends +0C0/004 ALL ext_ramdisk_image ramdisk_image high 32bits +0C4/004 ALL ext_ramdisk_size ramdisk_size high 32bits +0C8/004 ALL ext_cmd_line_ptr cmd_line_ptr high 32bits 140/080 ALL edid_info Video mode setup (struct edid_info) 1C0/020 ALL efi_info EFI 32 information (struct efi_info) 1E0/004 ALL alk_mem_k Alternative mem check, in KB @@ -27,6 +30,7 @@ Offset Proto Name Meaning 1E9/001 ALL eddbuf_entries Number of entries in eddbuf (below) 1EA/001 ALL edd_mbr_sig_buf_entries Number of entries in edd_mbr_sig_buffer (below) +1EF/001 ALL sentinel Used to detect broken bootloaders 290/040 ALL edd_mbr_sig_buffer EDD MBR signatures 2D0/A00 ALL e820_map E820 memory map table (array of struct e820entry) diff --git a/Documentation/zh_CN/video4linux/v4l2-framework.txt b/Documentation/zh_CN/video4linux/v4l2-framework.txt index 3e74f13af426..44c1d934c4e3 100644 --- a/Documentation/zh_CN/video4linux/v4l2-framework.txt +++ b/Documentation/zh_CN/video4linux/v4l2-framework.txt @@ -182,8 +182,7 @@ int iterate(void *p) static atomic_t drv_instance = ATOMIC_INIT(0); -static int __devinit drv_probe(struct pci_dev *pdev, - const struct pci_device_id *pci_id) +static int drv_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) { ... state->instance = atomic_inc_return(&drv_instance) - 1; |