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2010-08-01powerpc/fsl-diu-fb: Support setting display mode using EDIDAnatolij Gustschin1-0/+6
Adds support for encoding display mode information in the device tree using verbatim EDID block. If the EDID entry in the DIU node is present, the driver will build mode database using EDID data and allow setting the display modes from this database. Otherwise display mode will be set using mode entries from driver's internal database as usual. This patch also updates device tree bindings. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-08-01powerpc/5121: doc/dts-bindings: update doc of FSL DIU bindingsAnatolij Gustschin1-2/+12
Update compatible and interrupt properties description. Furthermore an example for the MPC5121 has been added. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-08-01KVM: Document KVM specific review itemsAvi Kivity1-0/+38
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-08-01KVM: Remove kernel-allocated memory regionsAvi Kivity2-33/+1
Equivalent (and better) functionality is provided by user-allocated memory regions. Signed-off-by: Avi Kivity <avi@redhat.com>
2010-08-01KVM: Remove memory alias supportAvi Kivity2-22/+1
As advertised in feature-removal-schedule.txt. Equivalent support is provided by overlapping memory regions. Signed-off-by: Avi Kivity <avi@redhat.com>
2010-08-01KVM: Fix typos in Documentation/kvm/mmu.txtJason Wang1-2/+2
Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-08-01KVM: x86: XSAVE/XRSTOR live migration supportSheng Yang1-0/+74
This patch enable save/restore of xsave state. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-08-01KVM: Add Documentation/kvm/msr.txtGlauber Costa1-0/+153
This patch adds a file that documents the usage of KVM-specific MSRs. Signed-off-by: Glauber Costa <glommer@redhat.com> Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-08-01KVM: MMU: Document large pagesAvi Kivity1-0/+23
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-08-01KVM: MMU: Document cr0.wp emulationAvi Kivity1-0/+19
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-08-01KVM: MMU: Don't allocate gfns page for direct mmu pagesLai Jiangshan1-1/+3
When sp->role.direct is set, sp->gfns does not contain any essential information, leaf sptes reachable from this sp are for a continuous guest physical memory range (a linear range). So sp->gfns[i] (if it was set) equals to sp->gfn + i. (PT_PAGE_TABLE_LEVEL) Obviously, it is not essential information, we can calculate it when need. It means we don't need sp->gfns when sp->role.direct=1, Thus we can save one page usage for every kvm_mmu_page. Note: Access to sp->gfns must be wrapped by kvm_mmu_page_get_gfn() or kvm_mmu_page_set_gfn(). It is only exposed in FNAME(sync_page). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-08-01KVM: update mmu documetation for role.nxeGui Jianfeng1-1/+1
There's no member "cr4_nxe" in struct kvm_mmu_page_role, it names "nxe" now. Update mmu document. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-08-01KVM: Document KVM_SET_BOOT_CPU_IDAvi Kivity1-0/+12
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-08-01KVM: Document KVM_SET_IDENTITY_MAP ioctlAvi Kivity1-0/+18
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-07-31Merge branch 'misc' into develRussell King2-12/+26
Conflicts: arch/arm/mm/init.c
2010-07-31padata: update API documentationSteffen Klassert1-12/+64
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-29CRED: Fix __task_cred()'s lockdep check and banner commentDavid Howells1-0/+3
Fix __task_cred()'s lockdep check by removing the following validation condition: lockdep_tasklist_lock_is_held() as commit_creds() does not take the tasklist_lock, and nor do most of the functions that call it, so this check is pointless and it can prevent detection of the RCU lock not being held if the tasklist_lock is held. Instead, add the following validation condition: task->exit_state >= 0 to permit the access if the target task is dead and therefore unable to change its own credentials. Fix __task_cred()'s comment to: (1) discard the bit that says that the caller must prevent the target task from being deleted. That shouldn't need saying. (2) Add a comment indicating the result of __task_cred() should not be passed directly to get_cred(), but rather than get_task_cred() should be used instead. Also put a note into the documentation to enforce this point there too. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-27[SCSI] hpsa: expose controller firmware revision via /sys.Stephen M. Cameron1-0/+7
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27[SCSI] hpsa: Add hpsa.txt to Documentation/scsiStephen M. Cameron1-0/+100
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27Merge branch 'origin' into miscRussell King3-2/+10
2010-07-27ARM: 6225/1: make TCM allocation static and common for all archsLinus Walleij2-12/+26
This changes the TCM handling so that a fixed area is reserved at 0xfffe0000-0xfffeffff for TCM. This areas is used by XScale but XScale does not have TCM so the mechanisms are mutually exclusive. This change is needed to make TCM detection more dynamic while still being able to compile code into it, and is a must for the unified ARM goals: the current TCM allocation at different places in memory for each machine would be a nightmare if you want to compile a single image for more than one machine with TCM so it has to be nailed down in one place. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-26xfs: remove obsolete osyncisosync mount optionChristoph Hellwig1-11/+0
Since Linux 2.6.33 the kernel has support for real O_SYNC, which made the osyncisosync option a no-op. Warn the users about this and remove the mount flag for it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2010-07-24ACPI / Sleep: Allow the NVS saving to be skipped during suspend to RAMRafael J. Wysocki2-2/+9
Commit 2a6b69765ad794389f2fc3e14a0afa1a995221c2 (ACPI: Store NVS state even when entering suspend to RAM) caused the ACPI suspend code save the NVS area during suspend and restore it during resume unconditionally, although it is known that some systems need to use acpi_sleep=s4_nonvs for hibernation to work. To allow the affected systems to avoid saving and restoring the NVS area during suspend to RAM and resume, introduce kernel command line option acpi_sleep=nonvs and make acpi_sleep=s4_nonvs work as its alias temporarily (add acpi_sleep=s4_nonvs to the feature removal file). Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16396 . Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-and-tested-by: tomas m <tmezzadra@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-07-20documentation: fix almost duplicate filenames (IO/io-mapping.txt)Randy Dunlap2-2/+4
Having both IO-mapping.txt and io-mapping.txt in Documentation/ was confusing and/or bothersome to some people, so rename IO-mapping.txt to bus-virt-phys-mapping.txt. Also update Documentation/00-INDEX for both of these files. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Kees Bakker <kees.bakker@xs4all.nl> Cc: Keith Packard <keithp@keithp.com>
2010-07-19update email addressPavel Machek5-5/+5
pavel@suse.cz no longer works, replace it with working address. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-07-19PM: Make it possible to avoid races between wakeup and system sleepRafael J. Wysocki1-0/+15
One of the arguments during the suspend blockers discussion was that the mainline kernel didn't contain any mechanisms making it possible to avoid races between wakeup and system suspend. Generally, there are two problems in that area. First, if a wakeup event occurs exactly when /sys/power/state is being written to, it may be delivered to user space right before the freezer kicks in, so the user space consumer of the event may not be able to process it before the system is suspended. Second, if a wakeup event occurs after user space has been frozen, it is not generally guaranteed that the ongoing transition of the system into a sleep state will be aborted. To address these issues introduce a new global sysfs attribute, /sys/power/wakeup_count, associated with a running counter of wakeup events and three helper functions, pm_stay_awake(), pm_relax(), and pm_wakeup_event(), that may be used by kernel subsystems to control the behavior of this attribute and to request the PM core to abort system transitions into a sleep state already in progress. The /sys/power/wakeup_count file may be read from or written to by user space. Reads will always succeed (unless interrupted by a signal) and return the current value of the wakeup events counter. Writes, however, will only succeed if the written number is equal to the current value of the wakeup events counter. If a write is successful, it will cause the kernel to save the current value of the wakeup events counter and to abort the subsequent system transition into a sleep state if any wakeup events are reported after the write has returned. [The assumption is that before writing to /sys/power/state user space will first read from /sys/power/wakeup_count. Next, user space consumers of wakeup events will have a chance to acknowledge or veto the upcoming system transition to a sleep state. Finally, if the transition is allowed to proceed, /sys/power/wakeup_count will be written to and if that succeeds, /sys/power/state will be written to as well. Still, if any wakeup events are reported to the PM core by kernel subsystems after that point, the transition will be aborted.] Additionally, put a wakeup events counter into struct dev_pm_info and make these per-device wakeup event counters available via sysfs, so that it's possible to check the activity of various wakeup event sources within the kernel. To illustrate how subsystems can use pm_wakeup_event(), make the low-level PCI runtime PM wakeup-handling code use it. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: markgross <markgross@thegnar.org> Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
2010-07-15Input: document the MT event slot protocolHenrik Rydberg1-69/+149
This patch adds documentation for the ABS_MT_SLOT event and gives examples of how to use the event slot protocol. Reviewed-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-07-14padata: update documentationSteffen Klassert1-10/+11
This patch updates the padata documentation to the changed API of padata_start/padata_stop and padata_do parallel. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-14lmb: rename to memblockYinghai Lu1-1/+1
via following scripts FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/lmb/memblock/g' \ -e 's/LMB/MEMBLOCK/g' \ $FILES for N in $(find . -name lmb.[ch]); do M=$(echo $N | sed 's/lmb/memblock/g') mv $N $M done and remove some wrong change like lmbench and dlmb etc. also move memblock.c from lib/ to mm/ Suggested-by: Ingo Molnar <mingo@elte.hu> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-07-12fix comnment/printk typos concerning "empty"Uwe Kleine-König1-1/+1
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-07-11Documentation: pci.txt: fix typoKulikov Vasiliy1-1/+1
Doubled 'not'. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-07-11Documentation update broken web addressesJustin P. Mattock1-6/+6
I've found some web addresses not responding, giving the cannot connect error when trying to load them. The below patch updates the addresses that are not connecting with the best that I can find, and also fixes a couple of addresses, so people can either choose an older version of the package and/or a newer version(i.e. ppp). Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-07-08V4L/DVB: Documentation: Add the Philips FQ1236 MK5 to video4linux/CARDLIST.tunerAndy Walls1-0/+1
Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-07-07isdn/gigaset: remove EXPERIMENTAL tag from GIGASET_CAPITilman Schmidt1-47/+53
The CAPI variant of the Gigaset drivers can, in combination with capidrv, now fully replace the legacy ISDN4Linux variant. All reported problems have been fixed. So remove the EXPERIMENTAL tag from the Kconfig option selecting it, and adapt the documentation accordingly to encourage users to switch to it. Impact: documentation/status update, no functional change Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-07isdn/gigaset: document dial-out number formatTilman Schmidt1-1/+16
Add a paragraph to the driver documentation describing how to make internal and external calls. Impact: documentation Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-05Documentation/isdn: CAPI controller interface amendmentTilman Schmidt1-2/+6
Mention that the CAPI controller methods load_firmware() and reset_ctr() are asynchronous, and should signal completion. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02Merge branch 'master' of ↵David S. Miller2-11/+1
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
2010-07-01watchdog: docs: add an entry for imx2_wdtFabio Estevam1-0/+5
Add an entry for imx2_wdt in watchdog-parameters.txt Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-06-29caif-driver: Add CAIF-SPI Protocol driver.Sjur Braendeland1-0/+208
This patch introduces the CAIF SPI Protocol Driver for CAIF Link Layer. This driver implements a platform driver to accommodate for a platform specific SPI device. A general platform driver is not possible as there are no SPI Slave side Kernel API defined. A sample CAIF SPI Platform device can be found in .../Documentation/networking/caif/spi_porting.txt Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-28Documentation/sysctl/vm.txt typoKulikov Vasiliy1-1/+1
Fix trivial typo: duplicated word. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-06-25netfilter: complete the deprecation of CONFIG_NF_CT_ACCTTim Gardner2-11/+1
CONFIG_NF_CT_ACCT has been deprecated for awhile and was originally scheduled for removal by 2.6.29. Removing support for this config option also stops this deprecation warning message in the kernel log. [ 61.669627] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 61.669850] CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use [ 61.669852] nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or [ 61.669853] sysctl net.netfilter.nf_conntrack_acct=1 to enable it. Signed-off-by: Tim Gardner <tim.gardner@canonical.com> [Patrick: changed default value to 0] Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-06-21HID: roccat: remove obsolete kone_abi_version sysfs attributeStefan Achatz1-12/+0
The newest version of the accompanying userland tools cuts backward compatibility and uses libudev to find its devices superseding the quirky kone_abi_version sysfs attribute. Therefore it should be removed. Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-06-18PCI/PM: Do not use native PCIe PME by defaultRafael J. Wysocki1-1/+3
Commit c7f486567c1d0acd2e4166c47069835b9f75e77b (PCI PM: PCIe PME root port service driver) causes the native PCIe PME signaling to be used by default, if the BIOS allows the kernel to control the standard configuration registers of PCIe root ports. However, the native PCIe PME is coupled to the native PCIe hotplug and calling pcie_pme_acpi_setup() makes some BIOSes expect that the native PCIe hotplug will be used as well. That, in turn, causes problems to appear on systems where the PCIe hotplug driver is not loaded. The usual symptom, as reported by Jaroslav Kameník and others, is that the ACPI GPE associated with PCIe hotplug keeps firing continuously causing kacpid to take substantial percentage of CPU time. To work around this issue, change the default so that the native PCIe PME signaling is only used if directly requested with the help of the pcie_pme= command line switch. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15924 , which is a listed regression from 2.6.33. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Jaroslav Kameník <jaroslav@kamenik.cz> Tested-by: Antoni Grzymala <antekgrzymala@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-06-17Merge branch 'master' of ↵David S. Miller1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2010-06-16ipw2200: Enable LED by defaultubuntu@tjworld.net1-1/+1
BugLink: http://bugs.launchpad.net/bugs/21367 Enable LED by default and update the MODULE_PARM_DESC. The original reason for defaulting to disabled was documented in 2005 and noted, "The LED code has been reported to hang some systems when running ifconfig and is therefore disabled by default." This no longer appears applicable and users have been requesting this be enabled for several years. Signed-off-by: TJ <ubuntu@tjworld.net> Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Acked-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-16Merge branch 'master' into for-nextJiri Kosina63-633/+4213
2010-06-11pktgen: increasing transmission granularityDaniel Turull1-0/+5
This patch increases the granularity of the rate generated by pktgen. The previous version of pktgen uses micro seconds (udelay) resolution when it was delayed causing gaps in the rates. It is changed to nanosecond (ndelay). Now any rate is possible. Also it allows to set, the desired rate in Mb/s or packets per second. The documentation has been updated. Signed-off-by: Daniel Turull <daniel.turull@gmail.com> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-11Merge branch 'for-linus' of ↵Linus Torvalds1-40/+0
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: clear bridge resource range if BIOS assigned bad one PCI: hotplug/cpqphp, fix NULL dereference Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/" PCI: change resource collision messages from KERN_ERR to KERN_INFO
2010-06-11Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/"Jesse Barnes1-40/+0
This reverts commit 75568f8094eb0333e9c2109b23cbc8b82d318a3c. Since they're just a convenience anyway, remove these symlinks since they're causing duplicate filename errors in the wild. Acked-by: Alex Chiang <achiang@canonical.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-06-05variable name fix to Documentation/rt-mutex-design.txtJim Cromie1-1/+1
Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>