diff options
Diffstat (limited to 'Documentation')
39 files changed, 427 insertions, 68 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 38f8444bdd0e..07de7e19b4ce 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -29,6 +29,8 @@ DMA-ISA-LPC.txt - How to do DMA with ISA (and LPC) devices. DMA-attributes.txt - listing of the various possible attributes a DMA region can have +dmatest.txt + - how to compile, configure and use the dmatest system. DocBook/ - directory with DocBook templates etc. for kernel documentation. EDID/ @@ -77,6 +79,8 @@ arm/ - directory with info about Linux on the ARM architecture. arm64/ - directory with info about Linux on the 64 bit ARM architecture. +assoc_array.txt + - generic associative array intro. atomic_ops.txt - semantics and behavior of atomic and bitmask operations. auxdisplay/ @@ -87,6 +91,8 @@ bad_memory.txt - how to use kernel parameters to exclude bad RAM regions. basic_profiling.txt - basic instructions for those who wants to profile Linux kernel. +bcache.txt + - Block-layer cache on fast SSDs to improve slow (raid) I/O performance. binfmt_misc.txt - info on the kernel support for extra binary formats. blackfin/ @@ -171,6 +177,8 @@ early-userspace/ - info about initramfs, klibc, and userspace early during boot. edac.txt - information on EDAC - Error Detection And Correction +efi-stub.txt + - How to use the EFI boot stub to bypass GRUB or elilo on EFI systems. eisa.txt - info on EISA bus support. email-clients.txt @@ -195,8 +203,8 @@ futex-requeue-pi.txt - info on requeueing of tasks from a non-PI futex to a PI futex gcov.txt - use of GCC's coverage testing tool "gcov" with the Linux kernel -gpio.txt - - overview of GPIO (General Purpose Input/Output) access conventions. +gpio/ + - gpio related documentation hid/ - directory with information on human interface devices highuid.txt @@ -255,6 +263,8 @@ 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. +kernel-per-CPU-kthreads.txt + - List of all per-CPU kthreads and how they introduce jitter. kmemcheck.txt - info on dynamic checker that detects uses of uninitialized memory. kmemleak.txt @@ -299,8 +309,6 @@ memory-devices/ - directory with info on parts like the Texas Instruments EMIF driver memory-hotplug.txt - Hotpluggable memory support, how to use and current status. -memory.txt - - info on typical Linux memory problems. metag/ - directory with info about Linux on Meta architecture. mips/ @@ -311,6 +319,8 @@ mmc/ - directory with info about the MMC subsystem mn10300/ - directory with info about the mn10300 architecture port +module-signing.txt + - Kernel module signing for increased security when loading modules. mtd/ - directory with info about memory technology devices (flash) mono.txt @@ -343,6 +353,8 @@ pcmcia/ - info on the Linux PCMCIA driver. percpu-rw-semaphore.txt - RCU based read-write semaphore optimized for locking for reading +phy.txt + - Description of the generic PHY framework. pi-futex.txt - documentation on lightweight priority inheritance futexes. pinctrl.txt @@ -431,6 +443,8 @@ sysrq.txt - info on the magic SysRq key. target/ - directory with info on generating TCM v4 fabric .ko modules +this_cpu_ops.txt + - List rationale behind and the way to use this_cpu operations. thermal/ - directory with information on managing thermal issues (CPU/temp) trace/ @@ -469,6 +483,8 @@ wimax/ - directory with info about Intel Wireless Wimax Connections workqueue.txt - information on the Concurrency Managed Workqueue implementation +ww-mutex-design.txt + - Intro to Mutex wait/would deadlock handling.s x86/x86_64/ - directory with info on Linux support for AMD x86-64 (Hammer) machines. xtensa/ diff --git a/Documentation/ABI/testing/sysfs-tty b/Documentation/ABI/testing/sysfs-tty index ad22fb0ee765..a2ccec35ffce 100644 --- a/Documentation/ABI/testing/sysfs-tty +++ b/Documentation/ABI/testing/sysfs-tty @@ -3,7 +3,8 @@ Date: Nov 2010 Contact: Kay Sievers <kay.sievers@vrfy.org> Description: Shows the list of currently configured - console devices, like 'tty1 ttyS0'. + tty devices used for the console, + like 'tty1 ttyS0'. The last entry in the file is the active device connected to /dev/console. The file supports poll() to detect virtual diff --git a/Documentation/RCU/00-INDEX b/Documentation/RCU/00-INDEX index 1d7a885761f5..fa57139f50bf 100644 --- a/Documentation/RCU/00-INDEX +++ b/Documentation/RCU/00-INDEX @@ -8,6 +8,8 @@ listRCU.txt - Using RCU to Protect Read-Mostly Linked Lists lockdep.txt - RCU and lockdep checking +lockdep-splat.txt + - RCU Lockdep splats explained. NMI-RCU.txt - Using RCU to Protect Dynamic NMI Handlers rcubarrier.txt diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX index 36420e116c90..a94090cc785d 100644 --- a/Documentation/arm/00-INDEX +++ b/Documentation/arm/00-INDEX @@ -4,6 +4,8 @@ Booting - requirements for booting Interrupts - ARM Interrupt subsystem documentation +IXP4xx + - Intel IXP4xx Network processor. msm - MSM specific documentation Netwinder @@ -24,8 +26,16 @@ SPEAr - ST SPEAr platform Linux Overview VFP/ - Release notes for Linux Kernel Vector Floating Point support code +cluster-pm-race-avoidance.txt + - Algorithm for CPU and Cluster setup/teardown empeg/ - Ltd's Empeg MP3 Car Audio Player +firmware.txt + - Secure firmware registration and calling. +kernel_mode_neon.txt + - How to use NEON instructions in kernel mode +kernel_user_helpers.txt + - Helper functions in kernel space made available for userspace. mem_alignment - alignment abort handler documentation memory.txt @@ -34,3 +44,7 @@ nwfpe/ - NWFPE floating point emulator documentation swp_emulation - SWP/SWPB emulation handler/logging description +tcm.txt + - ARM Tightly Coupled Memory +vlocks.txt + - Voting locks, low-level mechanism relying on memory system atomic writes. diff --git a/Documentation/blackfin/00-INDEX b/Documentation/blackfin/00-INDEX index 2df0365f2dff..c54fcdd4ae9f 100644 --- a/Documentation/blackfin/00-INDEX +++ b/Documentation/blackfin/00-INDEX @@ -1,8 +1,10 @@ 00-INDEX - This file - +Makefile + - Makefile for gptimers example file. bfin-gpio-notes.txt - Notes in developing/using bfin-gpio driver. - bfin-spi-notes.txt - Notes for using bfin spi bus driver. +gptimers-example.c + - gptimers example diff --git a/Documentation/block/00-INDEX b/Documentation/block/00-INDEX index 929d9904f74b..e840b47613f7 100644 --- a/Documentation/block/00-INDEX +++ b/Documentation/block/00-INDEX @@ -14,6 +14,8 @@ deadline-iosched.txt - Deadline IO scheduler tunables ioprio.txt - Block io priorities (in CFQ scheduler) +null_blk.txt + - Null block for block-layer benchmarking. queue-sysfs.txt - Queue's sysfs entries request.txt diff --git a/Documentation/devicetree/00-INDEX b/Documentation/devicetree/00-INDEX index b78f691fd847..8c4102c6a5e7 100644 --- a/Documentation/devicetree/00-INDEX +++ b/Documentation/devicetree/00-INDEX @@ -8,3 +8,5 @@ https://lists.ozlabs.org/listinfo/devicetree-discuss - this file booting-without-of.txt - Booting Linux without Open Firmware, describes history and format of device trees. +usage-model.txt + - How Linux uses DT and what DT aims to solve.
\ No newline at end of file diff --git a/Documentation/devicetree/bindings/mmc/atmel-hsmci.txt b/Documentation/devicetree/bindings/mmc/atmel-hsmci.txt index 0a85c70cd30a..07ad02075a93 100644 --- a/Documentation/devicetree/bindings/mmc/atmel-hsmci.txt +++ b/Documentation/devicetree/bindings/mmc/atmel-hsmci.txt @@ -13,6 +13,9 @@ Required properties: - #address-cells: should be one. The cell is the slot id. - #size-cells: should be zero. - at least one slot node +- clock-names: tuple listing input clock names. + Required elements: "mci_clk" +- clocks: phandles to input clocks. The node contains child nodes for each slot that the platform uses @@ -24,6 +27,8 @@ mmc0: mmc@f0008000 { interrupts = <12 4>; #address-cells = <1>; #size-cells = <0>; + clock-names = "mci_clk"; + clocks = <&mci0_clk>; [ child node definitions...] }; diff --git a/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt b/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt index b90bfcd138ff..863d5b8155c7 100644 --- a/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt +++ b/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt @@ -1,7 +1,8 @@ * Allwinner EMAC ethernet controller Required properties: -- compatible: should be "allwinner,sun4i-emac". +- compatible: should be "allwinner,sun4i-a10-emac" (Deprecated: + "allwinner,sun4i-emac") - reg: address and length of the register set for the device. - interrupts: interrupt for the device - phy: A phandle to a phy node defining the PHY address (as the reg @@ -14,7 +15,7 @@ Optional properties: Example: emac: ethernet@01c0b000 { - compatible = "allwinner,sun4i-emac"; + compatible = "allwinner,sun4i-a10-emac"; reg = <0x01c0b000 0x1000>; interrupts = <55>; clocks = <&ahb_gates 17>; diff --git a/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt b/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt index 00b9f9a3ec1d..4ec56413779d 100644 --- a/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt +++ b/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt @@ -1,7 +1,8 @@ * Allwinner A10 MDIO Ethernet Controller interface Required properties: -- compatible: should be "allwinner,sun4i-mdio". +- compatible: should be "allwinner,sun4i-a10-mdio" + (Deprecated: "allwinner,sun4i-mdio"). - reg: address and length of the register set for the device. Optional properties: @@ -9,7 +10,7 @@ Optional properties: Example at the SoC level: mdio@01c0b080 { - compatible = "allwinner,sun4i-mdio"; + compatible = "allwinner,sun4i-a10-mdio"; reg = <0x01c0b080 0x14>; #address-cells = <1>; #size-cells = <0>; diff --git a/Documentation/devicetree/bindings/power/bq2415x.txt b/Documentation/devicetree/bindings/power/bq2415x.txt new file mode 100644 index 000000000000..d0327f0b59ad --- /dev/null +++ b/Documentation/devicetree/bindings/power/bq2415x.txt @@ -0,0 +1,47 @@ +Binding for TI bq2415x Li-Ion Charger + +Required properties: +- compatible: Should contain one of the following: + * "ti,bq24150" + * "ti,bq24150" + * "ti,bq24150a" + * "ti,bq24151" + * "ti,bq24151a" + * "ti,bq24152" + * "ti,bq24153" + * "ti,bq24153a" + * "ti,bq24155" + * "ti,bq24156" + * "ti,bq24156a" + * "ti,bq24158" +- reg: integer, i2c address of the device. +- ti,current-limit: integer, initial maximum current charger can pull + from power supply in mA. +- ti,weak-battery-voltage: integer, weak battery voltage threshold in mV. + The chip will use slow precharge if battery voltage + is below this value. +- ti,battery-regulation-voltage: integer, maximum charging voltage in mV. +- ti,charge-current: integer, maximum charging current in mA. +- ti,termination-current: integer, charge will be terminated when current in + constant-voltage phase drops below this value (in mA). +- ti,resistor-sense: integer, value of sensing resistor in milliohm. + +Optional properties: +- ti,usb-charger-detection: phandle to usb charger detection device. + (required for auto mode) + +Example from Nokia N900: + +bq24150a { + compatible = "ti,bq24150a"; + reg = <0x6b>; + + ti,current-limit = <100>; + ti,weak-battery-voltage = <3400>; + ti,battery-regulation-voltage = <4200>; + ti,charge-current = <650>; + ti,termination-current = <100>; + ti,resistor-sense = <68>; + + ti,usb-charger-detection = <&isp1704>; +}; diff --git a/Documentation/devicetree/bindings/spi/spi_atmel.txt b/Documentation/devicetree/bindings/spi/spi_atmel.txt index 07e04cdc0c9e..4f8184d069cb 100644 --- a/Documentation/devicetree/bindings/spi/spi_atmel.txt +++ b/Documentation/devicetree/bindings/spi/spi_atmel.txt @@ -5,6 +5,9 @@ Required properties: - reg: Address and length of the register set for the device - interrupts: Should contain spi interrupt - cs-gpios: chipselects +- clock-names: tuple listing input clock names. + Required elements: "spi_clk" +- clocks: phandles to input clocks. Example: @@ -14,6 +17,8 @@ spi1: spi@fffcc000 { interrupts = <13 4 5>; #address-cells = <1>; #size-cells = <0>; + clocks = <&spi1_clk>; + clock-names = "spi_clk"; cs-gpios = <&pioB 3 0>; status = "okay"; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 3f900cd51bf0..40ce2df0e0e9 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -8,6 +8,7 @@ ad Avionic Design GmbH adi Analog Devices, Inc. aeroflexgaisler Aeroflex Gaisler AB ak Asahi Kasei Corp. +allwinner Allwinner Technology Co., Ltd. altr Altera Corp. amcc Applied Micro Circuits Corporation (APM, formally AMCC) amstaos AMS-Taos Inc. @@ -40,6 +41,7 @@ gmt Global Mixed-mode Technology, Inc. gumstix Gumstix, Inc. haoyu Haoyu Microelectronic Co. Ltd. hisilicon Hisilicon Limited. +honeywell Honeywell hp Hewlett Packard ibm International Business Machines (IBM) idt Integrated Device Technologies, Inc. @@ -55,6 +57,7 @@ maxim Maxim Integrated Products microchip Microchip Technology Inc. mosaixtech Mosaix Technologies, Inc. national National Semiconductor +neonode Neonode Inc. nintendo Nintendo nvidia NVIDIA nxp NXP Semiconductors @@ -64,7 +67,7 @@ phytec PHYTEC Messtechnik GmbH picochip Picochip Ltd powervr PowerVR (deprecated, use img) qca Qualcomm Atheros, Inc. -qcom Qualcomm, Inc. +qcom Qualcomm Technologies, Inc ralink Mediatek/Ralink Technology Corp. ramtron Ramtron International realtek Realtek Semiconductor Corp. @@ -78,6 +81,7 @@ silabs Silicon Laboratories simtek sirf SiRF Technology, Inc. snps Synopsys, Inc. +spansion Spansion Inc. st STMicroelectronics ste ST-Ericsson stericsson ST-Ericsson diff --git a/Documentation/fb/00-INDEX b/Documentation/fb/00-INDEX index 30a70542e823..fe85e7c5907a 100644 --- a/Documentation/fb/00-INDEX +++ b/Documentation/fb/00-INDEX @@ -5,6 +5,8 @@ please mail me. 00-INDEX - this file. +api.txt + - The frame buffer API between applications and buffer devices. arkfb.txt - info on the fbdev driver for ARK Logic chips. aty128fb.txt @@ -51,12 +53,16 @@ sh7760fb.txt - info on the SH7760/SH7763 integrated LCDC Framebuffer driver. sisfb.txt - info on the framebuffer device driver for various SiS chips. +sm501.txt + - info on the framebuffer device driver for sm501 videoframebuffer. sstfb.txt - info on the frame buffer driver for 3dfx' Voodoo Graphics boards. tgafb.txt - info on the TGA (DECChip 21030) frame buffer driver. tridentfb.txt info on the framebuffer driver for some Trident chip based cards. +udlfb.txt + - Driver for DisplayLink USB 2.0 chips. uvesafb.txt - info on the userspace VESA (VBE2+ compliant) frame buffer device. vesafb.txt diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX index 632211cbdd56..ac28149aede4 100644 --- a/Documentation/filesystems/00-INDEX +++ b/Documentation/filesystems/00-INDEX @@ -2,6 +2,8 @@ - this file (info on some of the filesystems supported by linux). Locking - info on locking rules as they pertain to Linux VFS. +Makefile + - Makefile for building the filsystems-part of DocBook. 9p.txt - 9p (v9fs) is an implementation of the Plan 9 remote fs protocol. adfs.txt diff --git a/Documentation/filesystems/nfs/00-INDEX b/Documentation/filesystems/nfs/00-INDEX index 66eb6c8c5334..53f3b596ac0d 100644 --- a/Documentation/filesystems/nfs/00-INDEX +++ b/Documentation/filesystems/nfs/00-INDEX @@ -12,6 +12,8 @@ nfs41-server.txt - info on the Linux server implementation of NFSv4 minor version 1. nfs-rdma.txt - how to install and setup the Linux NFS/RDMA client and server software +nfsd-admin-interfaces.txt + - Administrative interfaces for nfsd. nfsroot.txt - short guide on setting up a diskless box with NFS root filesystem. pnfs.txt @@ -20,5 +22,5 @@ rpc-cache.txt - introduction to the caching mechanisms in the sunrpc layer. idmapper.txt - information for configuring request-keys to be used by idmapper -knfsd-rpcgss.txt +rpc-server-gss.txt - Information on GSS authentication support in the NFS Server diff --git a/Documentation/ide/00-INDEX b/Documentation/ide/00-INDEX index d6b778842b75..22f98ca79539 100644 --- a/Documentation/ide/00-INDEX +++ b/Documentation/ide/00-INDEX @@ -10,3 +10,5 @@ ide-tape.txt - info on the IDE ATAPI streaming tape driver ide.txt - important info for users of ATA devices (IDE/EIDE disks and CD-ROMS). +warm-plug-howto.txt + - using sysfs to remove and add IDE devices.
\ No newline at end of file diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX index fa688538e757..d13b9a9a9e00 100644 --- a/Documentation/laptops/00-INDEX +++ b/Documentation/laptops/00-INDEX @@ -1,13 +1,15 @@ 00-INDEX - This file -acer-wmi.txt - - information on the Acer Laptop WMI Extras driver. +Makefile + - Makefile for building dslm example program. asus-laptop.txt - information on the Asus Laptop Extras driver. disk-shock-protection.txt - information on hard disk shock protection. dslm.c - Simple Disk Sleep Monitor program +hpfall.c + - (HP) laptop accelerometer program for disk protection. laptop-mode.txt - how to conserve battery power using laptop-mode. sony-laptop.txt diff --git a/Documentation/leds/00-INDEX b/Documentation/leds/00-INDEX index 1ecd1596633e..b4ef1f34e25f 100644 --- a/Documentation/leds/00-INDEX +++ b/Documentation/leds/00-INDEX @@ -1,3 +1,7 @@ +00-INDEX + - This file +leds-blinkm.txt + - Driver for BlinkM LED-devices. leds-class.txt - documents LED handling under Linux. leds-lp3944.txt @@ -12,3 +16,7 @@ leds-lp55xx.txt - description about lp55xx common driver. leds-lm3556.txt - notes on how to use the leds-lm3556 driver. +ledtrig-oneshot.txt + - One-shot LED trigger for both sporadic and dense events. +ledtrig-transient.txt + - LED Transient Trigger, one shot timer activation. diff --git a/Documentation/m68k/00-INDEX b/Documentation/m68k/00-INDEX index a014e9f00765..2be8c6b00e74 100644 --- a/Documentation/m68k/00-INDEX +++ b/Documentation/m68k/00-INDEX @@ -1,5 +1,7 @@ 00-INDEX - this file +README.buddha + - Amiga Buddha and Catweasel IDE Driver kernel-options.txt - command line options for Linux/m68k diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX index f11580f8719a..557b6ef70c26 100644 --- a/Documentation/networking/00-INDEX +++ b/Documentation/networking/00-INDEX @@ -6,8 +6,14 @@ - information on the 3Com Etherlink III Series Ethernet cards. 6pack.txt - info on the 6pack protocol, an alternative to KISS for AX.25 -DLINK.txt - - info on the D-Link DE-600/DE-620 parallel port pocket adapters +LICENSE.qla3xxx + - GPLv2 for QLogic Linux Networking HBA Driver +LICENSE.qlge + - GPLv2 for QLogic Linux qlge NIC Driver +LICENSE.qlcnic + - GPLv2 for QLogic Linux qlcnic NIC Driver +Makefile + - Makefile for docsrc. PLIP.txt - PLIP: The Parallel Line Internet Protocol device driver README.ipw2100 @@ -17,7 +23,7 @@ README.ipw2200 README.sb1000 - info on General Instrument/NextLevel SURFboard1000 cable modem. alias.txt - - info on using alias network devices + - info on using alias network devices. arcnet-hardware.txt - tons of info on ARCnet, hubs, jumper settings for ARCnet cards, etc. arcnet.txt @@ -80,7 +86,7 @@ framerelay.txt - info on using Frame Relay/Data Link Connection Identifier (DLCI). gen_stats.txt - Generic networking statistics for netlink users. -generic_hdlc.txt +generic-hdlc.txt - The generic High Level Data Link Control (HDLC) layer. generic_netlink.txt - info on Generic Netlink @@ -88,6 +94,8 @@ gianfar.txt - Gianfar Ethernet Driver. i40e.txt - README for the Intel Ethernet Controller XL710 Driver (i40e). +i40evf.txt + - Short note on the Driver for the Intel(R) XL710 X710 Virtual Function ieee802154.txt - Linux IEEE 802.15.4 implementation, API and drivers igb.txt @@ -102,6 +110,8 @@ ipddp.txt - AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation iphase.txt - Interphase PCI ATM (i)Chip IA Linux driver info. +ipsec.txt + - Note on not compressing IPSec payload and resulting failed policy check. ipv6.txt - Options to the ipv6 kernel module. ipvs-sysctl.txt @@ -120,6 +130,8 @@ lapb-module.txt - programming information of the LAPB module. ltpc.txt - the Apple or Farallon LocalTalk PC card driver +mac80211-auth-assoc-deauth.txt + - authentication and association / deauth-disassoc with max80211 mac80211-injection.txt - HOWTO use packet injection with mac80211 multiqueue.txt @@ -134,6 +146,10 @@ netdevices.txt - info on network device driver functions exported to the kernel. netif-msg.txt - Design of the network interface message level setting (NETIF_MSG_*). +netlink_mmap.txt + - memory mapped I/O with netlink +nf_conntrack-sysctl.txt + - list of netfilter-sysctl knobs. nfc.txt - The Linux Near Field Communication (NFS) subsystem. openvswitch.txt @@ -176,7 +192,7 @@ skfp.txt - SysKonnect FDDI (SK-5xxx, Compaq Netelligent) driver info. smc9.txt - the driver for SMC's 9000 series of Ethernet cards -spider-net.txt +spider_net.txt - README for the Spidernet Driver (as found in PS3 / Cell BE). stmmac.txt - README for the STMicro Synopsys Ethernet driver. @@ -188,6 +204,8 @@ tcp.txt - short blurb on how TCP output takes place. tcp-thin.txt - kernel tuning options for low rate 'thin' TCP streams. +team.txt + - pointer to information for ethernet teaming devices. tlan.txt - ThunderLAN (Compaq Netelligent 10/100, Olicom OC-2xxx) driver info. tproxy.txt @@ -200,6 +218,8 @@ vortex.txt - info on using 3Com Vortex (3c590, 3c592, 3c595, 3c597) Ethernet cards. vxge.txt - README for the Neterion X3100 PCIe Server Adapter. +vxlan.txt + - Virtual extensible LAN overview x25.txt - general info on X.25 development. x25-iface.txt diff --git a/Documentation/phy.txt b/Documentation/phy.txt index 0103e4b15b0e..ebff6ee52441 100644 --- a/Documentation/phy.txt +++ b/Documentation/phy.txt @@ -75,14 +75,26 @@ Before the controller can make use of the PHY, it has to get a reference to it. This framework provides the following APIs to get a reference to the PHY. struct phy *phy_get(struct device *dev, const char *string); +struct phy *phy_optional_get(struct device *dev, const char *string); struct phy *devm_phy_get(struct device *dev, const char *string); - -phy_get and devm_phy_get can be used to get the PHY. In the case of dt boot, -the string arguments should contain the phy name as given in the dt data and -in the case of non-dt boot, it should contain the label of the PHY. -The only difference between the two APIs is that devm_phy_get associates the -device with the PHY using devres on successful PHY get. On driver detach, -release function is invoked on the the devres data and devres data is freed. +struct phy *devm_phy_optional_get(struct device *dev, const char *string); + +phy_get, phy_optional_get, devm_phy_get and devm_phy_optional_get can +be used to get the PHY. In the case of dt boot, the string arguments +should contain the phy name as given in the dt data and in the case of +non-dt boot, it should contain the label of the PHY. The two +devm_phy_get associates the device with the PHY using devres on +successful PHY get. On driver detach, release function is invoked on +the the devres data and devres data is freed. phy_optional_get and +devm_phy_optional_get should be used when the phy is optional. These +two functions will never return -ENODEV, but instead returns NULL when +the phy cannot be found. + +It should be noted that NULL is a valid phy reference. All phy +consumer calls on the NULL phy become NOPs. That is the release calls, +the phy_init() and phy_exit() calls, and phy_power_on() and +phy_power_off() calls are all NOP when applied to a NULL phy. The NULL +phy is useful in devices for handling optional phy devices. 5. Releasing a reference to the PHY diff --git a/Documentation/power/00-INDEX b/Documentation/power/00-INDEX index a4d682f54231..ad04cc8097ed 100644 --- a/Documentation/power/00-INDEX +++ b/Documentation/power/00-INDEX @@ -4,6 +4,8 @@ apm-acpi.txt - basic info about the APM and ACPI support. basic-pm-debugging.txt - Debugging suspend and resume +charger-manager.txt + - Battery charger management. devices.txt - How drivers interact with system-wide power management drivers-testing.txt @@ -22,6 +24,8 @@ pm_qos_interface.txt - info on Linux PM Quality of Service interface power_supply_class.txt - Tells userspace about battery, UPS, AC or DC power supply properties +runtime_pm.txt + - Power management framework for I/O devices. s2ram.txt - How to get suspend to ram working (and debug it when it isn't) states.txt @@ -38,7 +42,5 @@ tricks.txt - How to trick software suspend (to disk) into working when it isn't userland-swsusp.txt - Experimental implementation of software suspend in userspace -video_extension.txt - - ACPI video extensions video.txt - Video issues during resume from suspend diff --git a/Documentation/ptp/testptp.c b/Documentation/ptp/testptp.c index a74d0a84d329..4aba0436da65 100644 --- a/Documentation/ptp/testptp.c +++ b/Documentation/ptp/testptp.c @@ -117,6 +117,7 @@ static void usage(char *progname) " -f val adjust the ptp clock frequency by 'val' ppb\n" " -g get the ptp clock time\n" " -h prints this message\n" + " -i val index for event/trigger\n" " -k val measure the time offset between system and phc clock\n" " for 'val' times (Maximum 25)\n" " -p val enable output with a period of 'val' nanoseconds\n" @@ -154,6 +155,7 @@ int main(int argc, char *argv[]) int capabilities = 0; int extts = 0; int gettime = 0; + int index = 0; int oneshot = 0; int pct_offset = 0; int n_samples = 0; @@ -167,7 +169,7 @@ int main(int argc, char *argv[]) progname = strrchr(argv[0], '/'); progname = progname ? 1+progname : argv[0]; - while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghk:p:P:sSt:v"))) { + while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghi:k:p:P:sSt:v"))) { switch (c) { case 'a': oneshot = atoi(optarg); @@ -190,6 +192,9 @@ int main(int argc, char *argv[]) case 'g': gettime = 1; break; + case 'i': + index = atoi(optarg); + break; case 'k': pct_offset = 1; n_samples = atoi(optarg); @@ -301,7 +306,7 @@ int main(int argc, char *argv[]) if (extts) { memset(&extts_request, 0, sizeof(extts_request)); - extts_request.index = 0; + extts_request.index = index; extts_request.flags = PTP_ENABLE_FEATURE; if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) { perror("PTP_EXTTS_REQUEST"); @@ -375,7 +380,7 @@ int main(int argc, char *argv[]) return -1; } memset(&perout_request, 0, sizeof(perout_request)); - perout_request.index = 0; + perout_request.index = index; perout_request.start.sec = ts.tv_sec + 2; perout_request.start.nsec = 0; perout_request.period.sec = 0; diff --git a/Documentation/s390/00-INDEX b/Documentation/s390/00-INDEX index 3a2b96302ecc..10c874ebdfe5 100644 --- a/Documentation/s390/00-INDEX +++ b/Documentation/s390/00-INDEX @@ -16,11 +16,13 @@ Debugging390.txt - hints for debugging on s390 systems. driver-model.txt - information on s390 devices and the driver model. +kvm.txt + - ioctl calls to /dev/kvm on s390. monreader.txt - information on accessing the z/VM monitor stream from Linux. +qeth.txt + - HiperSockets Bridge Port Support. s390dbf.txt - information on using the s390 debug feature. -TAPE - - information on the driver for channel-attached tapes. -zfcpdump +zfcpdump.txt - information on the s390 SCSI dump tool. diff --git a/Documentation/scheduler/00-INDEX b/Documentation/scheduler/00-INDEX index 46702e4f89c9..eccf7ad2e7f9 100644 --- a/Documentation/scheduler/00-INDEX +++ b/Documentation/scheduler/00-INDEX @@ -2,6 +2,8 @@ - this file. sched-arch.txt - CPU Scheduler implementation hints for architecture specific code. +sched-bwc.txt + - CFS bandwidth control overview. sched-design-CFS.txt - goals, design and implementation of the Completely Fair Scheduler. sched-domains.txt diff --git a/Documentation/scsi/00-INDEX b/Documentation/scsi/00-INDEX index 2044be565d93..c4b978a72f78 100644 --- a/Documentation/scsi/00-INDEX +++ b/Documentation/scsi/00-INDEX @@ -36,6 +36,8 @@ NinjaSCSI.txt - info on WorkBiT NinjaSCSI-32/32Bi driver aacraid.txt - Driver supporting Adaptec RAID controllers +advansys.txt + - List of Advansys Host Adapters aha152x.txt - info on driver for Adaptec AHA152x based adapters aic79xx.txt @@ -44,6 +46,12 @@ aic7xxx.txt - info on driver for Adaptec controllers arcmsr_spec.txt - ARECA FIRMWARE SPEC (for IOP331 adapter) +bfa.txt + - Brocade FC/FCOE adapter driver. +bnx2fc.txt + - FCoE hardware offload for Broadcom network interfaces. +cxgb3i.txt + - Chelsio iSCSI Linux Driver dc395x.txt - README file for the dc395x SCSI driver dpti.txt @@ -52,18 +60,24 @@ dtc3x80.txt - info on driver for DTC 2x80 based adapters g_NCR5380.txt - info on driver for NCR5380 and NCR53c400 based adapters +hpsa.txt + - HP Smart Array Controller SCSI driver. hptiop.txt - HIGHPOINT ROCKETRAID 3xxx RAID DRIVER in2000.txt - info on in2000 driver libsas.txt - Serial Attached SCSI management layer. +link_power_management_policy.txt + - Link power management options. lpfc.txt - LPFC driver release notes megaraid.txt - Common Management Module, shared code handling ioctls for LSI drivers ncr53c8xx.txt - info on driver for NCR53c8xx based adapters +osd.txt + Object-Based Storage Device, command set introduction. osst.txt - info on driver for OnStream SC-x0 SCSI tape ppa.txt @@ -74,6 +88,8 @@ scsi-changer.txt - README for the SCSI media changer driver scsi-generic.txt - info on the sg driver for generic (non-disk/CD/tape) SCSI devices. +scsi-parameters.txt + - List of SCSI-parameters to pass to the kernel at module load-time. scsi.txt - short blurb on using SCSI support as a module. scsi_mid_low_api.txt diff --git a/Documentation/serial/00-INDEX b/Documentation/serial/00-INDEX index 1f1b22fbd739..f9c6b5ed03e7 100644 --- a/Documentation/serial/00-INDEX +++ b/Documentation/serial/00-INDEX @@ -4,10 +4,12 @@ README.cycladesZ - info on Cyclades-Z firmware loading. digiepca.txt - info on Digi Intl. {PC,PCI,EISA}Xx and Xem series cards. -hayes-esp.txt - - info on using the Hayes ESP serial driver. +driver + - intro to the low level serial driver. moxa-smartio - file with info on installing/using Moxa multiport serial driver. +n_gsm.txt + - GSM 0710 tty multiplexer howto. riscom8.txt - notes on using the RISCom/8 multi-port serial driver. rocket.txt diff --git a/Documentation/spi/00-INDEX b/Documentation/spi/00-INDEX new file mode 100644 index 000000000000..a128fa835512 --- /dev/null +++ b/Documentation/spi/00-INDEX @@ -0,0 +1,22 @@ +00-INDEX + - this file. +Makefile + - Makefile for the example sourcefiles. +butterfly + - AVR Butterfly SPI driver overview and pin configuration. +ep93xx_spi + - Basic EP93xx SPI driver configuration. +pxa2xx + - PXA2xx SPI master controller build by spi_message fifo wq +spidev + - Intro to the userspace API for spi devices +spidev_fdx.c + - spidev example file +spi-lm70llp + - Connecting an LM70-LLP sensor to the kernel via the SPI subsys. +spi-sc18is602 + - NXP SC18IS602/603 I2C-bus to SPI bridge +spi-summary + - (Linux) SPI overview. If unsure about SPI or SPI in Linux, start here. +spidev_test.c + - SPI testing utility. diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary index f72e0d1e0da8..7982bcc4d151 100644 --- a/Documentation/spi/spi-summary +++ b/Documentation/spi/spi-summary @@ -543,7 +543,22 @@ SPI MASTER METHODS queuing transfers that arrive in the meantime. When the driver is finished with this message, it must call spi_finalize_current_message() so the subsystem can issue the next - transfer. This may sleep. + message. This may sleep. + + master->transfer_one(struct spi_master *master, struct spi_device *spi, + struct spi_transfer *transfer) + The subsystem calls the driver to transfer a single transfer while + queuing transfers that arrive in the meantime. When the driver is + finished with this transfer, it must call + spi_finalize_current_transfer() so the subsystem can issue the next + transfer. This may sleep. Note: transfer_one and transfer_one_message + are mutually exclusive; when both are set, the generic subsystem does + not call your transfer_one callback. + + Return values: + negative errno: error + 0: transfer is finished + 1: transfer is still in progress DEPRECATED METHODS diff --git a/Documentation/timers/00-INDEX b/Documentation/timers/00-INDEX index ef2ccbf77fa2..6d042dc1cce0 100644 --- a/Documentation/timers/00-INDEX +++ b/Documentation/timers/00-INDEX @@ -8,6 +8,8 @@ hpet_example.c - sample hpet timer test program hrtimers.txt - subsystem for high-resolution kernel timers +Makefile + - Build and link hpet_example NO_HZ.txt - Summary of the different methods for the scheduler clock-interrupts management. timers-howto.txt diff --git a/Documentation/virtual/kvm/00-INDEX b/Documentation/virtual/kvm/00-INDEX index 641ec9220179..fee9f2bf9c64 100644 --- a/Documentation/virtual/kvm/00-INDEX +++ b/Documentation/virtual/kvm/00-INDEX @@ -20,5 +20,7 @@ ppc-pv.txt - the paravirtualization interface on PowerPC. review-checklist.txt - review checklist for KVM patches. +s390-diag.txt + - Diagnose hypercall description (for IBM S/390) timekeeping.txt - timekeeping virtualization for x86-based architectures. diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX index a39d06680e1c..081c49777abb 100644 --- a/Documentation/vm/00-INDEX +++ b/Documentation/vm/00-INDEX @@ -16,8 +16,6 @@ hwpoison.txt - explains what hwpoison is ksm.txt - how to use the Kernel Samepage Merging feature. -locking - - info on how locking and synchronization is done in the Linux vm code. numa - information about NUMA specific code in the Linux vm. numa_memory_policy.txt @@ -32,6 +30,8 @@ slub.txt - a short users guide for SLUB. soft-dirty.txt - short explanation for soft-dirty PTEs +split_page_table_lock + - Separate per-table lock to improve scalability of the old page_table_lock. transhuge.txt - Transparent Hugepage Support, alternative way of using hugepages. unevictable-lru.txt diff --git a/Documentation/w1/masters/00-INDEX b/Documentation/w1/masters/00-INDEX index d63fa024ac05..8330cf9325f0 100644 --- a/Documentation/w1/masters/00-INDEX +++ b/Documentation/w1/masters/00-INDEX @@ -4,7 +4,9 @@ ds2482 - The Maxim/Dallas Semiconductor DS2482 provides 1-wire busses. ds2490 - The Maxim/Dallas Semiconductor DS2490 builds USB <-> W1 bridges. -mxc_w1 +mxc-w1 - W1 master controller driver found on Freescale MX2/MX3 SoCs +omap-hdq + - HDQ/1-wire module of TI OMAP 2430/3430. w1-gpio - GPIO 1-wire bus master driver. diff --git a/Documentation/w1/slaves/00-INDEX b/Documentation/w1/slaves/00-INDEX index 75613c9ac4db..6e18c70c3474 100644 --- a/Documentation/w1/slaves/00-INDEX +++ b/Documentation/w1/slaves/00-INDEX @@ -4,3 +4,5 @@ w1_therm - The Maxim/Dallas Semiconductor ds18*20 temperature sensor. w1_ds2423 - The Maxim/Dallas Semiconductor ds2423 counter device. +w1_ds28e04 + - The Maxim/Dallas Semiconductor ds28e04 eeprom. diff --git a/Documentation/x86/00-INDEX b/Documentation/x86/00-INDEX index f37b46d34861..692264456f0f 100644 --- a/Documentation/x86/00-INDEX +++ b/Documentation/x86/00-INDEX @@ -1,6 +1,20 @@ 00-INDEX - this file -mtrr.txt - - how to use x86 Memory Type Range Registers to increase performance +boot.txt + - List of boot protocol versions +early-microcode.txt + - How to load microcode from an initrd-CPIO archive early to fix CPU issues. +earlyprintk.txt + - Using earlyprintk with a USB2 debug port key. +entry_64.txt + - Describe (some of the) kernel entry points for x86. exception-tables.txt - why and how Linux kernel uses exception tables on x86 +mtrr.txt + - how to use x86 Memory Type Range Registers to increase performance +pat.txt + - Page Attribute Table intro and API +usb-legacy-support.txt + - how to fix/avoid quirks when using emulated PS/2 mouse/keyboard. +zero-page.txt + - layout of the first page of memory. diff --git a/Documentation/zh_CN/arm64/booting.txt b/Documentation/zh_CN/arm64/booting.txt index 28fa325b7461..6f6d956ac1c9 100644 --- a/Documentation/zh_CN/arm64/booting.txt +++ b/Documentation/zh_CN/arm64/booting.txt @@ -7,7 +7,7 @@ help. Contact the Chinese maintainer if this translation is outdated or if there is a problem with the translation. Maintainer: Will Deacon <will.deacon@arm.com> -Chinese maintainer: Fu Wei <tekkamanninja@gmail.com> +Chinese maintainer: Fu Wei <wefu@redhat.com> --------------------------------------------------------------------- Documentation/arm64/booting.txt 的中文翻译 @@ -16,9 +16,9 @@ Documentation/arm64/booting.txt 的中文翻译 译存在问题，请联系中文版维护者。 英文版维护者： Will Deacon <will.deacon@arm.com> -中文版维护者： 傅炜 Fu Wei <tekkamanninja@gmail.com> -中文版翻译者： 傅炜 Fu Wei <tekkamanninja@gmail.com> -中文版校译者： 傅炜 Fu Wei <tekkamanninja@gmail.com> +中文版维护者： 傅炜 Fu Wei <wefu@redhat.com> +中文版翻译者： 傅炜 Fu Wei <wefu@redhat.com> +中文版校译者： 傅炜 Fu Wei <wefu@redhat.com> 以下为正文 --------------------------------------------------------------------- @@ -64,8 +64,8 @@ RAM，或可能使用对这个设备已知的 RAM 信息，还可能使用任何 必要性: 强制 -设备树数据块（dtb）大小必须不大于 2 MB，且位于从内核映像起始算起第一个 -512MB 内的 2MB 边界上。这使得内核可以通过初始页表中的单个节描述符来 +设备树数据块（dtb）必须 8 字节对齐，并位于从内核映像起始算起第一个 512MB +内，且不得跨越 2MB 对齐边界。这使得内核可以通过初始页表中的单个节描述符来 映射此数据块。 @@ -84,13 +84,23 @@ AArch64 内核当前没有提供自解压代码，因此如果使用了压缩内 必要性: 强制 -已解压的内核映像包含一个 32 字节的头，内容如下： +已解压的内核映像包含一个 64 字节的头，内容如下： - u32 magic = 0x14000008; /* 跳转到 stext, 小端 */ - u32 res0 = 0; /* 保留 */ + u32 code0; /* 可执行代码 */ + u32 code1; /* 可执行代码 */ u64 text_offset; /* 映像装载偏移 */ + u64 res0 = 0; /* 保留 */ u64 res1 = 0; /* 保留 */ u64 res2 = 0; /* 保留 */ + u64 res3 = 0; /* 保留 */ + u64 res4 = 0; /* 保留 */ + u32 magic = 0x644d5241; /* 魔数, 小端, "ARM\x64" */ + u32 res5 = 0; /* 保留 */ + + +映像头注释： + +- code0/code1 负责跳转到 stext. 映像必须位于系统 RAM 起始处的特定偏移（当前是 0x80000）。系统 RAM 的起始地址必须是以 2MB 对齐的。 @@ -118,9 +128,9 @@ AArch64 内核当前没有提供自解压代码，因此如果使用了压缩内 外部高速缓存（如果存在）必须配置并禁用。 - 架构计时器 - CNTFRQ 必须设定为计时器的频率。 - 如果在 EL1 模式下进入内核，则 CNTHCTL_EL2 中的 EL1PCTEN (bit 0) - 必须置位。 + CNTFRQ 必须设定为计时器的频率，且 CNTVOFF 必须设定为对所有 CPU + 都一致的值。如果在 EL1 模式下进入内核，则 CNTHCTL_EL2 中的 + EL1PCTEN (bit 0) 必须置位。 - 一致性 通过内核启动的所有 CPU 在内核入口地址上必须处于相同的一致性域中。 @@ -131,23 +141,40 @@ AArch64 内核当前没有提供自解压代码，因此如果使用了压缩内 在进入内核映像的异常级中，所有构架中可写的系统寄存器必须通过软件 在一个更高的异常级别下初始化，以防止在 未知 状态下运行。 +以上对于 CPU 模式、高速缓存、MMU、架构计时器、一致性、系统寄存器的 +必要条件描述适用于所有 CPU。所有 CPU 必须在同一异常级别跳入内核。 + 引导装载程序必须在每个 CPU 处于以下状态时跳入内核入口： - 主 CPU 必须直接跳入内核映像的第一条指令。通过此 CPU 传递的设备树 - 数据块必须在每个 CPU 节点中包含以下内容： - - 1、‘enable-method’属性。目前，此字段支持的值仅为字符串“spin-table”。 - - 2、‘cpu-release-addr’标识一个 64-bit、初始化为零的内存位置。 + 数据块必须在每个 CPU 节点中包含一个 ‘enable-method’ 属性，所 + 支持的 enable-method 请见下文。 引导装载程序必须生成这些设备树属性，并在跳入内核入口之前将其插入 数据块。 -- 任何辅助 CPU 必须在内存保留区（通过设备树中的 /memreserve/ 域传递 +- enable-method 为 “spin-table” 的 CPU 必须在它们的 CPU + 节点中包含一个 ‘cpu-release-addr’ 属性。这个属性标识了一个 + 64 位自然对齐且初始化为零的内存位置。 + + 这些 CPU 必须在内存保留区（通过设备树中的 /memreserve/ 域传递 给内核）中自旋于内核之外，轮询它们的 cpu-release-addr 位置（必须 包含在保留区中）。可通过插入 wfe 指令来降低忙循环开销，而主 CPU 将 发出 sev 指令。当对 cpu-release-addr 所指位置的读取操作返回非零值 - 时，CPU 必须直接跳入此值所指向的地址。 + 时，CPU 必须跳入此值所指向的地址。此值为一个单独的 64 位小端值， + 因此 CPU 须在跳转前将所读取的值转换为其本身的端模式。 + +- enable-method 为 “psci” 的 CPU 保持在内核外（比如，在 + memory 节点中描述为内核空间的内存区外，或在通过设备树 /memreserve/ + 域中描述为内核保留区的空间中）。内核将会发起在 ARM 文档（编号 + ARM DEN 0022A：用于 ARM 上的电源状态协调接口系统软件）中描述的 + CPU_ON 调用来将 CPU 带入内核。 + + *译者注:到文档翻译时，此文档已更新为 ARM DEN 0022B。 + + 设备树必须包含一个 ‘psci’ 节点，请参考以下文档： + Documentation/devicetree/bindings/arm/psci.txt + - 辅助 CPU 通用寄存器设置 x0 = 0 (保留，将来可能使用) diff --git a/Documentation/zh_CN/arm64/memory.txt b/Documentation/zh_CN/arm64/memory.txt index a5f6283829f9..a782704c1cb5 100644 --- a/Documentation/zh_CN/arm64/memory.txt +++ b/Documentation/zh_CN/arm64/memory.txt @@ -7,7 +7,7 @@ help. Contact the Chinese maintainer if this translation is outdated or if there is a problem with the translation. Maintainer: Catalin Marinas <catalin.marinas@arm.com> -Chinese maintainer: Fu Wei <tekkamanninja@gmail.com> +Chinese maintainer: Fu Wei <wefu@redhat.com> --------------------------------------------------------------------- Documentation/arm64/memory.txt 的中文翻译 @@ -16,9 +16,9 @@ Documentation/arm64/memory.txt 的中文翻译 译存在问题，请联系中文版维护者。 英文版维护者： Catalin Marinas <catalin.marinas@arm.com> -中文版维护者： 傅炜 Fu Wei <tekkamanninja@gmail.com> -中文版翻译者： 傅炜 Fu Wei <tekkamanninja@gmail.com> -中文版校译者： 傅炜 Fu Wei <tekkamanninja@gmail.com> +中文版维护者： 傅炜 Fu Wei <wefu@redhat.com> +中文版翻译者： 傅炜 Fu Wei <wefu@redhat.com> +中文版校译者： 傅炜 Fu Wei <wefu@redhat.com> 以下为正文 --------------------------------------------------------------------- @@ -41,7 +41,7 @@ AArch64 Linux 使用页大小为 4KB 的 3 级转换表配置，对于用户和 TTBR1 中，且从不写入 TTBR0。 -AArch64 Linux 内存布局： +AArch64 Linux 在页大小为 4KB 时的内存布局： 起始地址 结束地址 大小 用途 ----------------------------------------------------------------------- @@ -55,15 +55,42 @@ ffffffbc00000000 ffffffbdffffffff 8GB vmemmap ffffffbe00000000 ffffffbffbbfffff ~8GB [防护页，未来用于 vmmemap] +ffffffbffbc00000 ffffffbffbdfffff 2MB earlyprintk 设备 + ffffffbffbe00000 ffffffbffbe0ffff 64KB PCI I/O 空间 -ffffffbbffff0000 ffffffbcffffffff ~2MB [防护页] +ffffffbffbe10000 ffffffbcffffffff ~2MB [防护页] ffffffbffc000000 ffffffbfffffffff 64MB 模块 ffffffc000000000 ffffffffffffffff 256GB 内核逻辑内存映射 +AArch64 Linux 在页大小为 64KB 时的内存布局： + +起始地址 结束地址 大小 用途 +----------------------------------------------------------------------- +0000000000000000 000003ffffffffff 4TB 用户空间 + +fffffc0000000000 fffffdfbfffeffff ~2TB vmalloc + +fffffdfbffff0000 fffffdfbffffffff 64KB [防护页] + +fffffdfc00000000 fffffdfdffffffff 8GB vmemmap + +fffffdfe00000000 fffffdfffbbfffff ~8GB [防护页，未来用于 vmmemap] + +fffffdfffbc00000 fffffdfffbdfffff 2MB earlyprintk 设备 + +fffffdfffbe00000 fffffdfffbe0ffff 64KB PCI I/O 空间 + +fffffdfffbe10000 fffffdfffbffffff ~2MB [防护页] + +fffffdfffc000000 fffffdffffffffff 64MB 模块 + +fffffe0000000000 ffffffffffffffff 2TB 内核逻辑内存映射 + + 4KB 页大小的转换表查找： +--------+--------+--------+--------+--------+--------+--------+--------+ @@ -91,3 +118,10 @@ ffffffc000000000 ffffffffffffffff 256GB 内核逻辑内存映射 | | +--------------------------> [41:29] L2 索引 (仅使用 38:29 ) | +-------------------------------> [47:42] L1 索引 (未使用) +-------------------------------------------------> [63] TTBR0/1 + +当使用 KVM 时, 管理程序（hypervisor）在 EL2 中通过相对内核虚拟地址的 +一个固定偏移来映射内核页（内核虚拟地址的高 24 位设为零）: + +起始地址 结束地址 大小 用途 +----------------------------------------------------------------------- +0000004000000000 0000007fffffffff 256GB 在 HYP 中映射的内核对象 diff --git a/Documentation/zh_CN/arm64/tagged-pointers.txt b/Documentation/zh_CN/arm64/tagged-pointers.txt new file mode 100644 index 000000000000..2664d1bd5a1c --- /dev/null +++ b/Documentation/zh_CN/arm64/tagged-pointers.txt @@ -0,0 +1,52 @@ +Chinese translated version of Documentation/arm64/tagged-pointers.txt + +If you have any comment or update to the content, please contact the +original document maintainer directly. However, if you have a problem +communicating in English you can also ask the Chinese maintainer for +help. Contact the Chinese maintainer if this translation is outdated +or if there is a problem with the translation. + +Maintainer: Will Deacon <will.deacon@arm.com> +Chinese maintainer: Fu Wei <wefu@redhat.com> +--------------------------------------------------------------------- +Documentation/arm64/tagged-pointers.txt 的中文翻译 + +如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文 +交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻 +译存在问题，请联系中文版维护者。 + +英文版维护者： Will Deacon <will.deacon@arm.com> +中文版维护者： 傅炜 Fu Wei <wefu@redhat.com> +中文版翻译者： 傅炜 Fu Wei <wefu@redhat.com> +中文版校译者： 傅炜 Fu Wei <wefu@redhat.com> + +以下为正文 +--------------------------------------------------------------------- + Linux 在 AArch64 中带标记的虚拟地址 + ================================= + +作者: Will Deacon <will.deacon@arm.com> +日期: 2013 年 06 月 12 日 + +本文档简述了在 AArch64 地址转换系统中提供的带标记的虚拟地址及其在 +AArch64 Linux 中的潜在用途。 + +内核提供的地址转换表配置使通过 TTBR0 完成的虚拟地址转换（即用户空间 +映射），其虚拟地址的最高 8 位（63:56）会被转换硬件所忽略。这种机制 +让这些位可供应用程序自由使用，其注意事项如下： + + (1) 内核要求所有传递到 EL1 的用户空间地址带有 0x00 标记。 + 这意味着任何携带用户空间虚拟地址的系统调用（syscall） + 参数 *必须* 在陷入内核前使它们的最高字节被清零。 + + (2) 非零标记在传递信号时不被保存。这意味着在应用程序中利用了 + 标记的信号处理函数无法依赖 siginfo_t 的用户空间虚拟 + 地址所携带的包含其内部域信息的标记。此规则的一个例外是 + 当信号是在调试观察点的异常处理程序中产生的，此时标记的 + 信息将被保存。 + + (3) 当使用带标记的指针时需特别留心，因为仅对两个虚拟地址 + 的高字节，C 编译器很可能无法判断它们是不同的。 + +此构架会阻止对带标记的 PC 指针的利用，因此在异常返回时，其高字节 +将被设置成一个为 “55” 的扩展符。 |