Pull more ACPI and power management updates from Rafael Wysocki:
"These are regression fixes (leds-gpio, ACPI backlight driver,
operating performance points library, ACPI device enumeration
messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device
PM), some cleanups in the operating performance points (OPP)
framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of
minor intel_pstate driver changes, a new MAINTAINERS entry for it and
an ACPI fan driver change needed for better support of thermal
management in user space.
Specifics:
- Fix a regression in leds-gpio introduced by a recent commit that
inadvertently changed the name of one of the properties used by the
driver (Fabio Estevam).
- Fix a regression in the ACPI backlight driver introduced by a
recent fix that missed one special case that had to be taken into
account (Aaron Lu).
- Drop the level of some new kernel messages from the ACPI core
introduced by a recent commit to KERN_DEBUG which they should have
used from the start and drop some other unuseful KERN_ERR messages
printed by ACPI (Rafael J Wysocki).
- Revert an incorrect commit modifying the cpupower tool (Prarit
Bhargava).
- Fix two regressions introduced by recent commits in the OPP library
and clean up some existing minor issues in that code (Viresh
Kumar).
- Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the
tree (or drop it where that can be done) in order to make it
possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf
Hansson, Ludovic Desroches).
There will be one more "CONFIG_PM_RUNTIME removal" batch after this
one, because some new uses of it have been introduced during the
current merge window, but that should be sufficient to finally get
rid of it.
- Make the ACPI EC driver more robust against race conditions related
to GPE handler installation failures (Lv Zheng).
- Prevent the ACPI device PM core code from attempting to disable
GPEs that it has not enabled which confuses ACPICA and makes it
report errors unnecessarily (Rafael J Wysocki).
- Add a "force" command line switch to the intel_pstate driver to
make it possible to override the blacklisting of some systems in
that driver if needed (Ethan Zhao).
- Improve intel_pstate code documentation and add a MAINTAINERS entry
for it (Kristen Carlson Accardi).
- Make the ACPI fan driver create cooling device interfaces witn
names that reflect the IDs of the ACPI device objects they are
associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B").
That's necessary for user space thermal management tools to be able
to connect the fans with the parts of the system they are supposed
to be cooling properly. From Srinivas Pandruvada"
* tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
MAINTAINERS: add entry for intel_pstate
ACPI / video: update the skip case for acpi_video_device_in_dod()
power / PM: Eliminate CONFIG_PM_RUNTIME
NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
ACPI / EC: Fix unexpected ec_remove_handlers() invocations
Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
ACPI / PM: Do not disable wakeup GPEs that have not been enabled
ACPI / utils: Drop error messages from acpi_evaluate_reference()
...
Pull x86 platform driver update from Darren Hart:
- thinkpad-acpi: Switch to software mute, cleanups
- acerhdf: Bang-bang thermal governor, new models, cleanups
- dell-laptop: New keyboard backlight support and documentation
- toshiba_acpi: Keyboard backlight updates, hotkey handling
- dell-wmi: Keypress filtering, WMI event processing
- eeepc-laptop: Multiple cleanups, improved error handling, documentation
- hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails
- misc: Code cleanups, quirks, various new IDs
* tag 'platform-drivers-x86-v3.19-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (33 commits)
platform/x86/acerhdf: Still depends on THERMAL
Documentation: Add entry for dell-laptop sysfs interface
acpi: Remove _OSI(Linux) for ThinkPads
thinkpad-acpi: Try to use full software mute control
acerhdf: minor clean up
acerhdf: added critical trip point
acerhdf: Use bang-bang thermal governor
acerhdf: Adding support for new models
acerhdf: Adding support for "manual mode"
dell-smo8800: Add more ACPI ids and change description of driver
platform: x86: dell-laptop: Add support for keyboard backlight
toshiba_acpi: Add keyboard backlight mode change event
toshiba_acpi: Change notify funtion to handle more events
toshiba_acpi: Move hotkey enabling code to its own function
dell-wmi: Don't report keypresses on keybord illumination change
dell-wmi: Don't report keypresses for radio state changes
hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails
toshiba-acpi: Add missing ID (TOS6207)
Sony-laptop: Deletion of an unnecessary check before the function call "pci_dev_put"
platform: x86: Deletion of checks before backlight_device_unregister()
...
Pull second set of media updates from Mauro Carvalho Chehab:
- Move drivers for really old legacy hardware to staging. Those are
using obsolete media kAPIs and are for hardware that nobody uses for
years. Simply not worth porting them to the new kAPIs. Of course,
if anyone pops up to fix, we can move them back from there
- While not too late, do some API fixups at the new colorspace API,
added for v3.19
- Some improvements for rcar_vin driver
- Some fixups at cx88 and vivid drivers
- Some Documentation fixups
* tag 'media/v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] bq/c-qcam, w9966, pms: move to staging in preparation for removal
[media] tlg2300: move to staging in preparation for removal
[media] vino/saa7191: move to staging in preparation for removal
[media] MAINTAINERS: vivi -> vivid
[media] cx88: remove leftover start_video_dma() call
[media] cx88: add missing alloc_ctx support
[media] v4l2-ioctl: WARN_ON if querycap didn't fill device_caps
[media] vivid: fix CROP_BOUNDS typo for video output
[media] DocBook media: update version number and document changes
[media] vivid.txt: document new controls
[media] DocBook media: add missing ycbcr_enc and quantization fields
[media] v4l2-mediabus.h: use two __u16 instead of two __u32
[media] rcar_vin: Fix interrupt enable in progressive
[media] rcar_vin: Enable VSYNC field toggle mode
[media] rcar_vin: Add scaling support
[media] rcar_vin: Add DT support for r8a7793 and r8a7794 SoCs
[media] rcar_vin: Add YUYV capture format support
Pull networking fixes from David Miller:
1) Fix NBMA tunnel mac header handling in GRE, from Timo Teräs.
2) Fix a NAPI race in the fec driver, from Nimrod Andy.
3) The new IFF_VNET_LE bit is outside the size of the flags member it
is stored in (which is 16-bits), store the state locally in the
drivers. From Michael S Tsirkin.
4) We are kicking the tires with the new wireless maintainership
situation. Bluetooth fixes via Johan Hedberg, and mac80211 fixes
from Johannes Berg.
5) Fix locking and leaks in geneve driver, from Jesse Gross.
6) Make netlink TX mmap code always copy, so we don't have to be
potentially exposed to the user changing the underlying contents
from underneath us.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (63 commits)
be2net: Fix incorrect setting of tunnel offload flag in netdev features
bnx2x: fix typos in "configure"
xen-netback: support frontends without feature-rx-notify again
MAINTAINERS: changes for wireless
cxgb4: Fix decoding QSA module for ethtool get settings
geneve: Fix races between socket add and release.
geneve: Remove socket and offload handlers at destruction.
netlink: Don't reorder loads/stores before marking mmap netlink frame as available
netlink: Always copy on mmap TX.
Bluetooth: Fix bug with filter in service discovery optimization
mac80211: free management frame keys when removing station
net: Disallow providing non zero VLAN ID for NIC drivers FDB add flow
net/mlx4: Cache line CQE/EQE stride fixes
net: fec: Fix NAPI race
xen-netfront: use napi_complete() correctly to prevent Rx stalling
ip_tunnel: Add missing validation of encap type to ip_tunnel_encap_setup()
ip_tunnel: Add sanity checks to ip_tunnel_encap_add_ops()
net: Allow FIXED_PHY to be modular.
if_tun: drop broken IFF_VNET_LE
macvtap: drop broken IFF_VNET_LE
...
Pull KVM update from Paolo Bonzini:
"3.19 changes for KVM:
- spring cleaning: removed support for IA64, and for hardware-
assisted virtualization on the PPC970
- ARM, PPC, s390 all had only small fixes
For x86:
- small performance improvements (though only on weird guests)
- usual round of hardware-compliancy fixes from Nadav
- APICv fixes
- XSAVES support for hosts and guests. XSAVES hosts were broken
because the (non-KVM) XSAVES patches inadvertently changed the KVM
userspace ABI whenever XSAVES was enabled; hence, this part is
going to stable. Guest support is just a matter of exposing the
feature and CPUID leaves support"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (179 commits)
KVM: move APIC types to arch/x86/
KVM: PPC: Book3S: Enable in-kernel XICS emulation by default
KVM: PPC: Book3S HV: Improve H_CONFER implementation
KVM: PPC: Book3S HV: Fix endianness of instruction obtained from HEIR register
KVM: PPC: Book3S HV: Remove code for PPC970 processors
KVM: PPC: Book3S HV: Tracepoints for KVM HV guest interactions
KVM: PPC: Book3S HV: Simplify locking around stolen time calculations
arch: powerpc: kvm: book3s_paired_singles.c: Remove unused function
arch: powerpc: kvm: book3s_pr.c: Remove unused function
arch: powerpc: kvm: book3s.c: Remove some unused functions
arch: powerpc: kvm: book3s_32_mmu.c: Remove unused function
KVM: PPC: Book3S HV: Check wait conditions before sleeping in kvmppc_vcore_blocked
KVM: PPC: Book3S HV: ptes are big endian
KVM: PPC: Book3S HV: Fix inaccuracies in ICP emulation for H_IPI
KVM: PPC: Book3S HV: Fix KSM memory corruption
KVM: PPC: Book3S HV: Fix an issue where guest is paused on receiving HMI
KVM: PPC: Book3S HV: Fix computation of tlbie operand
KVM: PPC: Book3S HV: Add missing HPTE unlock
KVM: PPC: BookE: Improve irq inject tracepoint
arm/arm64: KVM: Require in-kernel vgic for the arch timers
...
* pm-opp:
PM / OPP: do error handling at the bottom of dev_pm_opp_add_dynamic()
PM / OPP: handle allocation of device_opp in a separate routine
PM / OPP: reuse find_device_opp() instead of duplicating code
PM / OPP: Staticize __dev_pm_opp_remove()
PM / OPP: replace kfree with kfree_rcu while freeing 'struct device_opp'
* pm-cpufreq:
MAINTAINERS: add entry for intel_pstate
intel_pstate: Add a few comments
intel_pstate: add kernel parameter to force loading
* pm-tools:
Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
Pull thermal management update from Zhang Rui:
"Summary:
- of-thermal extension to allow drivers to register and use its
functionality in a better way, without exploiting thermal core.
From Lukasz Majewski.
- Fix a bug in intel_soc_dts_thermal driver which calls a sleep
function in interrupt handler. From Maurice Petallo.
- add a thermal UAPI header file for exporting the thermal generic
netlink information to user-space. From Florian Fainelli.
- First round of refactoring in Exynos driver. Bartlomiej and Lukasz
are attempting to make it lean and easier to understand.
- New thermal driver for Rockchip (rk3288), with support for DT
thermal. From Caesar Wang.
- New thermal driver for Nvidia, Tegra124 SOCTHERM driver, with
support for DT thermal. From Mikko Perttunen.
- New cooling device, based on common clock framework. From Eduardo
Valentin.
- a couple of small fixes in thermal core framework. From Srinivas
Pandruvada, Javi Merino, Luis Henriques.
- Dropping Armada A375-Z1 SoC thermal support as the chip is not in
the market, armada folks decided to drop its support.
- a couple of small fixes and cleanups in int340x thermal driver"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (58 commits)
thermal: provide an UAPI header file
Thermal/int340x: Clear the error value of the last acpi_bus_get_device() call
thermal/powerclamp: add id for braswell cpu
thermal: Intel SoC DTS: Don't do thermal zone update inside spin_lock
Thermal: fix platform_no_drv_owner.cocci warnings
Thermal/int340x: avoid unnecessary pointer casting
thermal: int3403: Delete a check before thermal_zone_device_unregister()
thermal/int3400: export uuids
thermal: of: Extend current of-thermal.c code to allow setting emulated temp
thermal: of: Extend of-thermal to export table of trip points
thermal: of: Rename struct __thermal_trip to struct thermal_trip
thermal: of: Extend of-thermal.c to provide check if trip point is valid
thermal: of: Extend of-thermal.c to provide number of trip points
thermal: Fix error path in thermal_init()
thermal: lock the thermal zone when switching governors
thermal: core: ignore invalid trip temperature
thermal: armada: Remove support for A375-Z1 SoC
thermal: rockchip: add driver for thermal
dt-bindings: document Rockchip thermal
thermal: exynos: remove exynos_tmu_data.h include
...
Pull pwm updates from Thierry Reding:
"There are two new drivers, one for the BCM2835 (Raspberry Pi) and one
used in conjunction with the LCD controller on various Atmel SoCs.
The Samsung PWM driver can now be built for 64-bit ARM (Exynos7).
A couple of fixes have been applied to the FTM PWM driver and system
sleep support was added"
* tag 'pwm/for-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: atmel-hlcdc: add at91sam9x5 and sama5d3 errata handling
pwm: ftm: Add Power Management support for FTM PWM
pwm: ftm: Add regmap rbtree type cache support
pwm: ftm: Correctly track usage count
pwm: samsung: Allow Samsung PWM driver to be enabled on Exynos7
pwm: add DT bindings documentation for atmel-hlcdc-pwm driver
pwm: add support for atmel-hlcdc-pwm device
pwm: Add BCM2835 PWM driver
Pull input subsystem updates from Dmitry Torokhov:
"Two new drivers for Elan hardware (for I2C touchpad and touchscreen
found in several Chromebooks and other devices), a driver for Goodix
touch panel, and small fixes to Cypress I2C trackpad and other input
drivers.
Also we switched to use __maybe_unused instead of gating suspend/
resume code with #ifdef guards to get better compile coverage"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (27 commits)
Input: gpio_keys - fix warning regarding uninitialized 'button' variable
Input: add support for Elan eKTH I2C touchscreens
Input: gpio_keys - fix warning regarding uninitialized 'irq' variable
Input: cyapa - use 'error' for error codes
Input: cyapa - fix resuming the device
Input: gpio_keys - add device tree support for interrupt only keys
Input: amikbd - allocate temporary keymap buffer on the stack
Input: amikbd - fix build if !CONFIG_HW_CONSOLE
Input: lm8323 - missing error check in lm8323_set_disable()
Input: initialize device counter variables with -1
Input: initialize input_no to -1 to avoid subtraction
Input: i8042 - do not try to load on Intel NUC D54250WYK
Input: atkbd - correct MSC_SCAN events for force_release keys
Input: cyapa - switch to using managed resources
Input: lifebook - use "static inline" instead of "inline" in lifebook.h
Input: touchscreen - use __maybe_unused instead of ifdef around suspend/resume
Input: mouse - use __maybe_unused instead of ifdef around suspend/resume
Input: misc - use __maybe_unused instead of ifdef around suspend/resume
Input: cap11xx - support for irq-active-high option
Input: cap11xx - add support for various cap11xx devices
...
Pull MTD updates from Brian Norris:
"Summary:
- Add device tree support for DoC3
- SPI NOR:
Refactoring, for better layering between spi-nor.c and its
driver users (e.g., m25p80.c)
New flash device support
Support 6-byte ID strings
- NAND:
New NAND driver for Allwinner SoC's (sunxi)
GPMI NAND: add support for raw (no ECC) access, for testing
purposes
Add ATO manufacturer ID
A few odd driver fixes
- MTD tests:
Allow testers to compensate for OOB bitflips in oobtest
Fix a torturetest regression
- nandsim: Support longer ID byte strings
And more"
* tag 'for-linus-20141215' of git://git.infradead.org/linux-mtd: (63 commits)
mtd: tests: abort torturetest on erase errors
mtd: physmap_of: fix potential NULL dereference
mtd: spi-nor: allow NULL as chip name and try to auto detect it
mtd: nand: gpmi: add raw oob access functions
mtd: nand: gpmi: add proper raw access support
mtd: nand: gpmi: add gpmi_copy_bits function
mtd: spi-nor: factor out write_enable() for erase commands
mtd: spi-nor: add support for s25fl128s
mtd: spi-nor: remove the jedec_id/ext_id
mtd: spi-nor: add id/id_len for flash_info{}
mtd: nand: correct the comment of function nand_block_isreserved()
jffs2: Drop bogus if in comment
mtd: atmel_nand: replace memcpy32_toio/memcpy32_fromio with memcpy
mtd: cafe_nand: drop duplicate .write_page implementation
mtd: m25p80: Add support for serial flash Spansion S25FL132K
MTD: m25p80: fix inconsistency in m25p_ids compared to spi_nor_ids
mtd: spi-nor: improve wait-till-ready timeout loop
mtd: delete unnecessary checks before two function calls
mtd: nand: omap: Fix NAND enumeration on 3430 LDP
mtd: nand: add ATO manufacturer info
...
Pull tracing updates from Steven Rostedt:
"As the merge window is still open, and this code was not as complex as
I thought it might be. I'm pushing this in now.
This will allow Thomas to debug his irq work for 3.20.
This adds two new features:
1) Allow traceopoints to be enabled right after mm_init().
By passing in the trace_event= kernel command line parameter,
tracepoints can be enabled at boot up. For debugging things like
the initialization of interrupts, it is needed to have tracepoints
enabled very early. People have asked about this before and this
has been on my todo list. As it can be helpful for Thomas to debug
his upcoming 3.20 IRQ work, I'm pushing this now. This way he can
add tracepoints into the IRQ set up and have users enable them when
things go wrong.
2) Have the tracepoints printed via printk() (the console) when they
are triggered.
If the irq code locks up or reboots the box, having the tracepoint
output go into the kernel ring buffer is useless for debugging.
But being able to add the tp_printk kernel command line option
along with the trace_event= option will have these tracepoints
printed as they occur, and that can be really useful for debugging
early lock up or reboot problems.
This code is not that intrusive and it passed all my tests. Thomas
tried them out too and it works for his needs.
Link: http://lkml.kernel.org/r/20141214201609.126831471@goodmis.org"
* tag 'trace-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Add tp_printk cmdline to have tracepoints go to printk()
tracing: Move enabling tracepoints to just after rcu_init()
Pull LED subsystem update from Bryan Wu:
"We got some cleanup and driver for LP8860 as well as some patches for
LED Flash Class"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: lp8860: Fix module dependency
leds: lp8860: Introduce TI lp8860 4 channel LED driver
leds: Add support for setting brightness in a synchronous way
leds: implement sysfs interface locking mechanism
leds: syscon: handle multiple syscon instances
leds: delete copy/paste mistake
leds: regulator: Convert to devm_regulator_get_exclusive
Pull staging driver updates from Greg KH:
"Here's the big staging tree pull request for 3.19-rc1.
We continued to delete more lines than were added, always a good
thing, but not at a huge rate this release, only about 70k lines
removed overall mostly from removing the horrid bcm driver.
Lots of normal staging driver cleanups and fixes all over the place,
well over a thousand of them, the shortlog shows all the horrid
details.
The "contentious" thing here is the movement of the Android binder
code out of staging into the "real" part of the kernel. This is code
that has been stable for a few years now and is working as-is in the
tens of millions of devices with no issues. Yes, the code is horrid,
and the userspace api leaves a lot to be desired, but it's not going
to change due to legacy issues that we have no control over. Because
so many devices and companies rely on this, and the code is stable,
might as well promote it out of staging.
This was all discussed at the Linux Plumbers conference, and everyone
participating agreed that this was the best way forward.
There is work happening to replace the binder code with something new
that is happening right now, but I don't expect to see the results of
that work for another year at the earliest. If that ever happens, and
Android switches over to it, I'll gladly remove this version.
As for maintainers, I'll be glad to maintain this code, I've been
doing it for the past few years with no problems. I'll send a
MAINTAINERS entry for it before 3.19-final is out, still need to talk
to the Google developers about if they are willing to help with it or
not, last I checked they were, which was good.
All of these patches have been in linux-next for a while with no
reported issues"
* tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1382 commits)
Staging: slicoss: Fix long line issues in slicoss.c
staging: rtl8712: remove unnecessary else after return
staging: comedi: change some printk calls to pr_err
staging: rtl8723au: hal: Removed the extra semicolon
lustre: Deletion of unnecessary checks before three function calls
staging: lustre: fix sparse warnings: static function declaration
staging: lustre: fixed sparse warnings related to static declarations
staging: unisys: remove duplicate header
staging: unisys: remove unneeded structure
staging: ft1000 : replace __attribute ((__packed__) with __packed
drivers: staging: rtl8192e: Include "asm/unaligned.h" instead of "access_ok.h" in "rtl819x_BAProc.c"
Drivers:staging:rtl8192e: Fixed checkpatch warning
Drivers:staging:clocking-wizard: Added a newline
staging: clocking-wizard: check for a valid clk_name pointer
staging: rtl8723au: Hal_InitPGData() avoid unnecessary typecasts
staging: rtl8723au: _DisableAnalog(): Avoid zero-init variables unnecessarily
staging: rtl8723au: Remove unnecessary wrapper _ResetDigitalProcedure1()
staging: rtl8723au: _ResetDigitalProcedure1_92C() reduce code obfuscation
staging: rtl8723au: Remove unnecessary wrapper _DisableRFAFEAndResetBB()
staging: rtl8723au: _DisableRFAFEAndResetBB8192C(): Reduce code obfuscation
...
Pull power supply updates from Sebastian Reichel::
"Power supply and reset changes for the v3.19 series
- update power/reset drivers to use kernel restart handler
- add power off driver for i.mx6
- add DT support for gpio-charger"
* tag 'for-v3.19' of git://git.infradead.org/battery-2.6:
power: reset: adjust priority of simple syscon reboot driver
power: ds2782_battery: Simplify the PM hooks
power/reset: brcmstb: Register with kernel restart handler
power/reset: hisi: Register with kernel restart handler
power/reset: keystone: Register with kernel restart handler
power/reset: axxia: Register with kernel restart handler
power/reset: xgene: Register with kernel restart handler
power/reset: xgene: Use mdelay instead of jiffies based timeout
power/reset: xgene: Use local variable dev instead of pdev->dev
power/reset: xgene: Drop devm_kfree
power/reset: xgene: Return -ENOMEM if out of memory
power/reset: vexpress: Register with kernel restart handler
power: reset: imx-snvs-poweroff: add power off driver for i.mx6
power: gpio-charger: add device tree support
dt-bindings: document gpio-charger bindings
Pull irq domain ARM updates from Thomas Gleixner:
"This set of changes make use of hierarchical irqdomains to provide:
- MSI/ITS support for GICv3
- MSI support for GICv2m
- Interrupt polarity extender for GICv1
Marc has come more cleanups for the existing extension hooks of GIC in
the pipeline, but they are going to be 3.20 material"
* 'irq-irqdomain-arm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
irqchip: gicv3-its: Fix ITT allocation
irqchip: gicv3-its: Move some alloc/free code to activate/deactivate
irqchip: gicv3-its: Fix domain free in multi-MSI case
irqchip: gic: Remove warning by including linux/irqdomain.h
irqchip: gic-v2m: Add DT bindings for GICv2m
irqchip: gic-v2m: Add support for ARM GICv2m MSI(-X) doorbell
irqchip: mtk-sysirq: dt-bindings: Add bindings for mediatek sysirq
irqchip: mtk-sysirq: Add sysirq interrupt polarity support
irqchip: gic: Support hierarchy irq domain.
irqchip: GICv3: Binding updates for ITS
irqchip: GICv3: ITS: enable compilation of the ITS driver
irqchip: GICv3: ITS: plug ITS init into main GICv3 code
irqchip: GICv3: ITS: DT probing and initialization
irqchip: GICv3: ITS: MSI support
irqchip: GICv3: ITS: device allocation and configuration
irqchip: GICv3: ITS: tables allocators
irqchip: GICv3: ITS: LPI allocator
irqchip: GICv3: ITS: irqchip implementation
irqchip: GICv3: ITS command queue
irqchip: GICv3: rework redistributor structure
...
Pull drm updates from Dave Airlie:
"Highlights:
- AMD KFD driver merge
This is the AMD HSA interface for exposing a lowlevel interface for
GPGPU use. They have an open source userspace built on top of this
interface, and the code looks as good as it was going to get out of
tree.
- Initial atomic modesetting work
The need for an atomic modesetting interface to allow userspace to
try and send a complete set of modesetting state to the driver has
arisen, and been suffering from neglect this past year. No more,
the start of the common code and changes for msm driver to use it
are in this tree. Ongoing work to get the userspace ioctl finished
and the code clean will probably wait until next kernel.
- DisplayID 1.3 and tiled monitor exposed to userspace.
Tiled monitor property is now exposed for userspace to make use of.
- Rockchip drm driver merged.
- imx gpu driver moved out of staging
Other stuff:
- core:
panel - MIPI DSI + new panels.
expose suggested x/y properties for virtual GPUs
- i915:
Initial Skylake (SKL) support
gen3/4 reset work
start of dri1/ums removal
infoframe tracking
fixes for lots of things.
- nouveau:
tegra k1 voltage support
GM204 modesetting support
GT21x memory reclocking work
- radeon:
CI dpm fixes
GPUVM improvements
Initial DPM fan control
- rcar-du:
HDMI support added
removed some support for old boards
slave encoder driver for Analog Devices adv7511
- exynos:
Exynos4415 SoC support
- msm:
a4xx gpu support
atomic helper conversion
- tegra:
iommu support
universal plane support
ganged-mode DSI support
- sti:
HDMI i2c improvements
- vmwgfx:
some late fixes.
- qxl:
use suggested x/y properties"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (969 commits)
drm: sti: fix module compilation issue
drm/i915: save/restore GMBUS freq across suspend/resume on gen4
drm: sti: correctly cleanup CRTC and planes
drm: sti: add HQVDP plane
drm: sti: add cursor plane
drm: sti: enable auxiliary CRTC
drm: sti: fix delay in VTG programming
drm: sti: prepare sti_tvout to support auxiliary crtc
drm: sti: use drm_crtc_vblank_{on/off} instead of drm_vblank_{on/off}
drm: sti: fix hdmi avi infoframe
drm: sti: remove event lock while disabling vblank
drm: sti: simplify gdp code
drm: sti: clear all mixer control
drm: sti: remove gpio for HDMI hot plug detection
drm: sti: allow to change hdmi ddc i2c adapter
drm/doc: Document drm_add_modes_noedid() usage
drm/i915: Remove '& 0xffff' from the mask given to WA_REG()
drm/i915: Invert the mask and val arguments in wa_add() and WA_REG()
drm: Zero out DRM object memory upon cleanup
drm/i915/bdw: Fix the write setting up the WIZ hashing mode
...
Fix the typo, there should be "It".
On the other hand, fix whitespace errors detected by checkpatch.pl
Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the kernel command line tp_printk option that will have tracepoints
that are active sent to printk() as well as to the trace buffer.
Passing "tp_printk" will activate this. To turn it off, the sysctl
/proc/sys/kernel/tracepoint_printk can have '0' echoed into it. Note,
this only works if the cmdline option is used. Echoing 1 into the sysctl
file without the cmdline option will have no affect.
Note, this is a dangerous option. Having high frequency tracepoints send
their data to printk() can possibly cause a live lock. This is another
reason why this is only active if the command line option is used.
Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412121539300.16494@nanos
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Second round of changes for KVM for arm/arm64 for v3.19; fixes reboot
problems, clarifies VCPU init, and fixes a regression concerning the
VGIC init flow.
Conflicts:
arch/ia64/kvm/kvm-ia64.c [deleted in HEAD and modified in kvmarm]
Pull security layer updates from James Morris:
"In terms of changes, there's general maintenance to the Smack,
SELinux, and integrity code.
The IMA code adds a new kconfig option, IMA_APPRAISE_SIGNED_INIT,
which allows IMA appraisal to require signatures. Support for reading
keys from rootfs before init is call is also added"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (23 commits)
selinux: Remove security_ops extern
security: smack: fix out-of-bounds access in smk_parse_smack()
VFS: refactor vfs_read()
ima: require signature based appraisal
integrity: provide a hook to load keys when rootfs is ready
ima: load x509 certificate from the kernel
integrity: provide a function to load x509 certificate from the kernel
integrity: define a new function integrity_read_file()
Security: smack: replace kzalloc with kmem_cache for inode_smack
Smack: Lock mode for the floor and hat labels
ima: added support for new kernel cmdline parameter ima_template_fmt
ima: allocate field pointers array on demand in template_desc_init_fields()
ima: don't allocate a copy of template_fmt in template_desc_init_fields()
ima: display template format in meas. list if template name length is zero
ima: added error messages to template-related functions
ima: use atomic bit operations to protect policy update interface
ima: ignore empty and with whitespaces policy lines
ima: no need to allocate entry for comment
ima: report policy load status
ima: use path names cache
...
Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver update for 3.19-rc1
Lots of little things all over the place in different drivers, and a
new subsystem, "coresight" has been added. Full details are in the
shortlog"
* tag 'char-misc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (73 commits)
parport: parport_pc, do not remove parent devices early
spmi: Remove shutdown/suspend/resume kernel-doc
carma-fpga-program: drop videobuf dependency
carma-fpga: drop videobuf dependency
carma-fpga-program.c: fix compile errors
i8k: Fix temperature bug handling in i8k_get_temp()
cxl: Name interrupts in /proc/interrupt
CXL: Return error to PSL if IRQ demultiplexing fails & print clearer warning
coresight-replicator: remove .owner field for driver
coresight: fixed comments in coresight.h
coresight: fix typo in comment in coresight-priv.h
coresight: bindings for coresight drivers
coresight: Adding ABI documentation
w1: support auto-load of w1_bq27000 module.
w1: avoid potential u16 overflow
cn: verify msg->len before making callback
mei: export fw status registers through sysfs
mei: read and print all six FW status registers
mei: txe: add cherrytrail device id
mei: kill cached host and me csr values
...
Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
Pull tty/serial driver updates from Greg KH:
"Here's the big tty/serial driver update for 3.19-rc1.
There are a number of TTY core changes/fixes in here from Peter Hurley
that have all been teted in linux-next for a long time now. There are
also the normal serial driver updates as well, full details in the
changelog below"
* tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (219 commits)
serial: pxa: hold port.lock when reporting modem line changes
tty-hvsi_lib: Deletion of an unnecessary check before the function call "tty_kref_put"
tty: Deletion of unnecessary checks before two function calls
n_tty: Fix read_buf race condition, increment read_head after pushing data
serial: of-serial: add PM suspend/resume support
Revert "serial: of-serial: add PM suspend/resume support"
Revert "serial: of-serial: fix up PM ops on no_console_suspend and port type"
serial: 8250: don't attempt a trylock if in sysrq
serial: core: Add big-endian iotype
serial: samsung: use port->fifosize instead of hardcoded values
serial: samsung: prefer to use fifosize from driver data
serial: samsung: fix style problems
serial: samsung: wait for transfer completion before clock disable
serial: icom: fix error return code
serial: tegra: clean up tty-flag assignments
serial: Fix io address assign flow with Fintek PCI-to-UART Product
serial: mxs-auart: fix tx_empty against shift register
serial: mxs-auart: fix gpio change detection on interrupt
serial: mxs-auart: Fix mxs_auart_set_ldisc()
serial: 8250_dw: Use 64-bit access for OCTEON.
...
Pull USB updates from Greg KH:
"Here's the big set of USB and PHY patches for 3.19-rc1.
The normal churn in the USB gadget area is in here, as well as xhci
and other individual USB driver updates. The PHY tree is also in
here, as there were dependancies on the USB tree.
All of these have been in linux-next"
* tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (351 commits)
arm: omap3: twl: remove usb phy init data
usbip: fix error handling in stub_probe()
usb: gadget: udc: missing curly braces
USB: mos7720: delete some unneeded code
wusb: replace memset by memzero_explicit
usbip: remove unneeded structure
usb: xhci: fix comment for PORT_DEV_REMOVE
xhci: don't use the same variable for stopped and halted rings current TD
xhci: clear extra bits from slot context when setting max exit latency
xhci: cleanup finish_td function
USB: adutux: NULL dereferences on disconnect
usb: chipidea: fix platform_no_drv_owner.cocci warnings
usb: chipidea: Fixed a few typos in comments
Documentation: bindings: add doc for the USB2 ChipIdea USB driver
usb: chipidea: add a usb2 driver for ci13xxx
usb: chipidea: fix phy handling
usb: chipidea: remove duplicate dev_set_drvdata for host_start
usb: chipidea: parameter 'mode' isn't needed for hw_device_reset
usb: chipidea: add controller reset API
usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER
...
Pull squashfs update from Phillip Lougher:
"These patches optionally add LZ4 compression support to Squashfs.
LZ4 is a lightweight compression algorithm which can be used on
embedded systems to reduce CPU and memory overhead (in comparison to
the standard zlib compression).
These patches add the wrapper code to allow Squashfs to use the
existing LZ4 decompression code, and the necessary configuration
option"
* tag 'squashfs-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next:
Squashfs: Add LZ4 compression configuration option
Squashfs: add LZ4 compression support
Pull take two of the GPIO updates:
"Same stuff as last time, now with a fixup patch for the previous
compile error plus I ran a few extra rounds of compile-testing.
This is the bulk of GPIO changes for the v3.19 series:
- A new API that allows setting more than one GPIO at the time. This
is implemented for the new descriptor-based API only and makes it
possible to e.g. toggle a clock and data line at the same time, if
the hardware can do this with a single register write. Both
consumers and drivers need new calls, and the core will fall back
to driving individual lines where needed. Implemented for the
MPC8xxx driver initially
- Patched the mdio-mux-gpio and the serial mctrl driver that drives
modems to use the new multiple-setting API to set several signals
simultaneously
- Get rid of the global GPIO descriptor array, and instead allocate
descriptors dynamically for each GPIO on a certain GPIO chip. This
moves us closer to getting rid of the limitation of using the
global, static GPIO numberspace
- New driver and device tree bindings for 74xx ICs
- New driver and device tree bindings for the VF610 Vybrid
- Support the RCAR r8a7793 and r8a7794
- Guidelines for GPIO device tree bindings trying to get things a bit
more strict with the advent of combined device properties
- Suspend/resume support for the MVEBU driver
- A slew of minor fixes and improvements"
* tag 'gpio-v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (33 commits)
gpio: mcp23s08: fix up compilation error
gpio: pl061: document gpio-ranges property for bindings file
gpio: pl061: hook request if gpio-ranges avaiable
gpio: mcp23s08: Add option to configure IRQ output polarity as active high
gpio: fix deferred probe detection for legacy API
serial: mctrl_gpio: use gpiod_set_array function
mdio-mux-gpio: Use GPIO descriptor interface and new gpiod_set_array function
gpio: remove const modifier from gpiod_get_direction()
gpio: remove gpio_descs global array
gpio: mxs: implement get_direction callback
gpio: em: Use dynamic allocation of GPIOs
gpio: Check if base is positive before calling gpio_is_valid()
gpio: mcp23s08: Add simple IRQ support for SPI devices
gpio: mcp23s08: request a shared interrupt
gpio: mcp23s08: Do not free unrequested interrupt
gpio: rcar: Add r8a7793 and r8a7794 support
gpio-mpc8xxx: add mpc8xxx_gpio_set_multiple function
gpiolib: allow simultaneous setting of multiple GPIO outputs
gpio: mvebu: add suspend/resume support
gpio: gpio-davinci: remove duplicate check on resource
..
Pull i2c updates from Wolfram Sang:
"For 3.19, the I2C subsystem has to offer special candy this time.
Right in time for Christmas :)
- I2C slave framework: finally, a generic mechanism for Linux being
an I2C slave (if the bus driver supports that). Docs are still
missing but will come later this cycle, the code is good enough to
go.
- I2C muxes represent their topology in sysfs much more detailed.
This will help users to navigate around much easier.
- irq population of i2c clients is now done at probe time, not device
creation time, to have better support for deferred probing.
- new drivers for Imagination SCB, Amlogic Meson
- DMA support added for Freescale IMX, Renesas SHMobile
- slightly bigger driver updates to OMAP, i801, AT91, and rk3x
(mostly quirk handling, timing updates, and using better kernel
interfaces)
- eeprom driver can now write with byte-access (very slow, but OK to
have)
- and the bunch of smaller fixes, cleanups, ID updates..."
* 'i2c/for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (56 commits)
i2c: sh_mobile: remove unneeded DMA mask
i2c: rcar: add slave support
i2c: slave-eeprom: add eeprom simulator driver
i2c: core changes for slave support
MAINTAINERS: add I2C dt bindings also to I2C realm
i2c: designware: Fix falling time bindings doc
i2c: davinci: switch to use platform_get_irq
Documentation: i2c: Use PM ops instead of legacy suspend/resume
i2c: sh_mobile: optimize irq entry
i2c: pxa: add support for SCCB devices
omap: i2c: don't check bus state IP rev3.3 and earlier
i2c: s3c2410: Handle i2c sys_cfg register in i2c driver
i2c: rk3x: add Kconfig dependency on COMMON_CLK
i2c: omap: add notes related to i2c multimaster mode
i2c: omap: don't reset controller if Arbitration Lost detected
i2c: omap: implement workaround for handling invalid BB-bit values
i2c: omap: cleanup register definitions
i2c: rk3x: handle dynamic clock rate changes correctly
i2c: at91: enable probe deferring on dma channel request
i2c: at91: remove legacy DMA support
...
Pull x86 fixes from Ingo Molnar:
"Misc fixes (mainly Andy's TLS fixes), plus a cleanup"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tls: Disallow unusual TLS segments
x86/tls: Validate TLS entries to protect espfix
MAINTAINERS: Add me as x86 VDSO submaintainer
x86/asm: Unify segment selector defines
x86/asm: Guard against building the 32/64-bit versions of the asm-offsets*.c file directly
x86_64, switch_to(): Load TLS descriptors before switching DS and ES
x86/mm: Use min() instead of min_t() in the e820 printout code
x86/mm: Fix zone ranges boot printout
x86/doc: Update documentation after file shuffling
Pull block driver core update from Jens Axboe:
"This is the pull request for the core block IO changes for 3.19. Not
a huge round this time, mostly lots of little good fixes:
- Fix a bug in sysfs blktrace interface causing a NULL pointer
dereference, when enabled/disabled through that API. From Arianna
Avanzini.
- Various updates/fixes/improvements for blk-mq:
- A set of updates from Bart, mostly fixing buts in the tag
handling.
- Cleanup/code consolidation from Christoph.
- Extend queue_rq API to be able to handle batching issues of IO
requests. NVMe will utilize this shortly. From me.
- A few tag and request handling updates from me.
- Cleanup of the preempt handling for running queues from Paolo.
- Prevent running of unmapped hardware queues from Ming Lei.
- Move the kdump memory limiting check to be in the correct
location, from Shaohua.
- Initialize all software queues at init time from Takashi. This
prevents a kobject warning when CPUs are brought online that
weren't online when a queue was registered.
- Single writeback fix for I_DIRTY clearing from Tejun. Queued with
the core IO changes, since it's just a single fix.
- Version X of the __bio_add_page() segment addition retry from
Maurizio. Hope the Xth time is the charm.
- Documentation fixup for IO scheduler merging from Jan.
- Introduce (and use) generic IO stat accounting helpers for non-rq
drivers, from Gu Zheng.
- Kill off artificial limiting of max sectors in a request from
Christoph"
* 'for-3.19/core' of git://git.kernel.dk/linux-block: (26 commits)
bio: modify __bio_add_page() to accept pages that don't start a new segment
blk-mq: Fix uninitialized kobject at CPU hotplugging
blktrace: don't let the sysfs interface remove trace from running list
blk-mq: Use all available hardware queues
blk-mq: Micro-optimize bt_get()
blk-mq: Fix a race between bt_clear_tag() and bt_get()
blk-mq: Avoid that __bt_get_word() wraps multiple times
blk-mq: Fix a use-after-free
blk-mq: prevent unmapped hw queue from being scheduled
blk-mq: re-check for available tags after running the hardware queue
blk-mq: fix hang in bt_get()
blk-mq: move the kdump check to blk_mq_alloc_tag_set
blk-mq: cleanup tag free handling
blk-mq: use 'nr_cpu_ids' as highest CPU ID count for hwq <-> cpu map
blk: introduce generic io stat accounting help function
blk-mq: handle the single queue case in blk_mq_hctx_next_cpu
genhd: check for int overflow in disk_expand_part_tbl()
blk-mq: add blk_mq_free_hctx_request()
blk-mq: export blk_mq_free_request()
blk-mq: use get_cpu/put_cpu instead of preempt_disable/preempt_enable
...
Pull crypto update from Herbert Xu:
- The crypto API is now documented :)
- Disallow arbitrary module loading through crypto API.
- Allow get request with empty driver name through crypto_user.
- Allow speed testing of arbitrary hash functions.
- Add caam support for ctr(aes), gcm(aes) and their derivatives.
- nx now supports concurrent hashing properly.
- Add sahara support for SHA1/256.
- Add ARM64 version of CRC32.
- Misc fixes.
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits)
crypto: tcrypt - Allow speed testing of arbitrary hash functions
crypto: af_alg - add user space interface for AEAD
crypto: qat - fix problem with coalescing enable logic
crypto: sahara - add support for SHA1/256
crypto: sahara - replace tasklets with kthread
crypto: sahara - add support for i.MX53
crypto: sahara - fix spinlock initialization
crypto: arm - replace memset by memzero_explicit
crypto: powerpc - replace memset by memzero_explicit
crypto: sha - replace memset by memzero_explicit
crypto: sparc - replace memset by memzero_explicit
crypto: algif_skcipher - initialize upon init request
crypto: algif_skcipher - removed unneeded code
crypto: algif_skcipher - Fixed blocking recvmsg
crypto: drbg - use memzero_explicit() for clearing sensitive data
crypto: drbg - use MODULE_ALIAS_CRYPTO
crypto: include crypto- module prefix in template
crypto: user - add MODULE_ALIAS
crypto: sha-mb - remove a bogus NULL check
crytpo: qat - Fix 64 bytes requests
...
Merge second patchbomb from Andrew Morton:
- the rest of MM
- misc fs fixes
- add execveat() syscall
- new ratelimit feature for fault-injection
- decompressor updates
- ipc/ updates
- fallocate feature creep
- fsnotify cleanups
- a few other misc things
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (99 commits)
cgroups: Documentation: fix trivial typos and wrong paragraph numberings
parisc: percpu: update comments referring to __get_cpu_var
percpu: update local_ops.txt to reflect this_cpu operations
percpu: remove __get_cpu_var and __raw_get_cpu_var macros
fsnotify: remove destroy_list from fsnotify_mark
fsnotify: unify inode and mount marks handling
fallocate: create FAN_MODIFY and IN_MODIFY events
mm/cma: make kmemleak ignore CMA regions
slub: fix cpuset check in get_any_partial
slab: fix cpuset check in fallback_alloc
shmdt: use i_size_read() instead of ->i_size
ipc/shm.c: fix overly aggressive shmdt() when calls span multiple segments
ipc/msg: increase MSGMNI, remove scaling
ipc/sem.c: increase SEMMSL, SEMMNI, SEMOPM
ipc/sem.c: change memory barrier in sem_lock() to smp_rmb()
lib/decompress.c: consistency of compress formats for kernel image
decompress_bunzip2: off by one in get_next_block()
usr/Kconfig: make initrd compression algorithm selection not expert
fault-inject: add ratelimit option
ratelimit: add initialization macro
...
SysV can be abused to allocate locked kernel memory. For most systems, a
small limit doesn't make sense, see the discussion with regards to SHMMAX.
Therefore: increase MSGMNI to the maximum supported.
And: If we ignore the risk of locking too much memory, then an automatic
scaling of MSGMNI doesn't make sense. Therefore the logic can be removed.
The code preserves auto_msgmni to avoid breaking any user space applications
that expect that the value exists.
Notes:
1) If an administrator must limit the memory allocations, then he can set
MSGMNI as necessary.
Or he can disable sysv entirely (as e.g. done by Android).
2) MSGMAX and MSGMNB are intentionally not increased, as these values are used
to control latency vs. throughput:
If MSGMNB is large, then msgsnd() just returns and more messages can be queued
before a task switch to a task that calls msgrcv() is forced.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the page owner tracking code which is introduced so far ago. It
is resident on Andrew's tree, though, nobody tried to upstream so it
remain as is. Our company uses this feature actively to debug memory leak
or to find a memory hogger so I decide to upstream this feature.
This functionality help us to know who allocates the page. When
allocating a page, we store some information about allocation in extra
memory. Later, if we need to know status of all pages, we can get and
analyze it from this stored information.
In previous version of this feature, extra memory is statically defined in
struct page, but, in this version, extra memory is allocated outside of
struct page. It enables us to turn on/off this feature at boottime
without considerable memory waste.
Although we already have tracepoint for tracing page allocation/free,
using it to analyze page owner is rather complex. We need to enlarge the
trace buffer for preventing overlapping until userspace program launched.
And, launched program continually dump out the trace buffer for later
analysis and it would change system behaviour with more possibility rather
than just keeping it in memory, so bad for debug.
Moreover, we can use page_owner feature further for various purposes. For
example, we can use it for fragmentation statistics implemented in this
patch. And, I also plan to implement some CMA failure debugging feature
using this interface.
I'd like to give the credit for all developers contributed this feature,
but, it's not easy because I don't know exact history. Sorry about that.
Below is people who has "Signed-off-by" in the patches in Andrew's tree.
Contributor:
Alexander Nyberg <alexn@dsv.su.se>
Mel Gorman <mgorman@suse.de>
Dave Hansen <dave@linux.vnet.ibm.com>
Minchan Kim <minchan@kernel.org>
Michal Nazarewicz <mina86@mina86.com>
Andrew Morton <akpm@linux-foundation.org>
Jungsoo Son <jungsoo.son@lge.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Now, we have prepared to avoid using debug-pagealloc in boottime. So
introduce new kernel-parameter to disable debug-pagealloc in boottime, and
makes related functions to be disabled in this case.
Only non-intuitive part is change of guard page functions. Because guard
page is effective only if debug-pagealloc is enabled, turning off
according to debug-pagealloc is reasonable thing to do.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The hugepages= entry in kernel-parameters.txt states that 1GB pages can
only be allocated at boot time and not freed afterwards. This is not
true since commit 944d9fec8d ("hugetlb: add support for gigantic page
allocation at runtime"), at least for x86_64.
Instead of adding arch-specifc observations to the hugepages= entry,
this commit just drops the out of date information. Further information
about arch-specific support and available features can be obtained in
the hugetlb documentation.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When a vcpu calls SYSTEM_OFF or SYSTEM_RESET with PSCI v0.2, the vcpus
should really be turned off for the VM adhering to the suggestions in
the PSCI spec, and it's the sane thing to do.
Also, clarify the behavior and expectations for exits to user space with
the KVM_EXIT_SYSTEM_EVENT case.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
It is not clear that this ioctl can be called multiple times for a given
vcpu. Userspace already does this, so clarify the ABI.
Also specify that userspace is expected to always make secondary and
subsequent calls to the ioctl with the same parameters for the VCPU as
the initial call (which userspace also already does).
Add code to check that userspace doesn't violate that ABI in the future,
and move the kvm_vcpu_set_target() function which is currently
duplicated between the 32-bit and 64-bit versions in guest.c to a common
static function in arm.c, shared between both architectures.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
The implementation of KVM_ARM_VCPU_INIT is currently not doing what
userspace expects, namely making sure that a vcpu which may have been
turned off using PSCI is returned to its initial state, which would be
powered on if userspace does not set the KVM_ARM_VCPU_POWER_OFF flag.
Implement the expected functionality and clarify the ABI.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Pull another networking update from David Miller:
"Small follow-up to the main merge pull from the other day:
1) Alexander Duyck's DMA memory barrier patch set.
2) cxgb4 driver fixes from Karen Xie.
3) Add missing export of fixed_phy_register() to modules, from Mark
Salter.
4) DSA bug fixes from Florian Fainelli"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (24 commits)
net/macb: add TX multiqueue support for gem
linux/interrupt.h: remove the definition of unused tasklet_hi_enable
jme: replace calls to redundant function
net: ethernet: davicom: Allow to select DM9000 for nios2
net: ethernet: smsc: Allow to select SMC91X for nios2
cxgb4: Add support for QSA modules
libcxgbi: fix freeing skb prematurely
cxgb4i: use set_wr_txq() to set tx queues
cxgb4i: handle non-pdu-aligned rx data
cxgb4i: additional types of negative advice
cxgb4/cxgb4i: set the max. pdu length in firmware
cxgb4i: fix credit check for tx_data_wr
cxgb4i: fix tx immediate data credit check
net: phy: export fixed_phy_register()
fib_trie: Fix trie balancing issue if new node pushes down existing node
vlan: Add ability to always enable TSO/UFO
r8169:update rtl8168g pcie ephy parameter
net: dsa: bcm_sf2: force link for all fixed PHY devices
fm10k/igb/ixgbe: Use dma_rmb on Rx descriptor reads
r8169: Use dma_rmb() and dma_wmb() for DescOwn checks
...
Pull ARM updates from Russell King:
"The major updates included in this update are:
- Clang compatible stack pointer accesses by Behan Webster.
- SA11x0 updates from Dmitry Eremin-Solenikov.
- kgdb handling of breakpoints with read-only text/modules
- Support for Privileged-no-execute feature on ARMv7 to prevent
userspace code execution by the kernel.
- AMBA primecell bus handling of irq-safe runtime PM
- Unwinding support for memset/memzero/memmove/memcpy functions
- VFP fixes for Krait CPUs and improvements in detecting the VFP
architecture
- A number of code cleanups (using pr_*, removing or reducing the
severity of a couple of kernel messages, splitting ftrace asm code
out to a separate file, etc.)
- Add machine name to stack dump output"
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (62 commits)
ARM: 8247/2: pcmcia: sa1100: make use of device clock
ARM: 8246/2: pcmcia: sa1111: provide device clock
ARM: 8245/1: pcmcia: soc-common: enable/disable socket clocks
ARM: 8244/1: fbdev: sa1100fb: make use of device clock
ARM: 8243/1: sa1100: add a clock alias for sa1111 pcmcia device
ARM: 8242/1: sa1100: add cpu clock
ARM: 8221/1: PJ4: allow building in Thumb-2 mode
ARM: 8234/1: sa1100: reorder IRQ handling code
ARM: 8233/1: sa1100: switch to hwirq usage
ARM: 8232/1: sa1100: merge GPIO multiplexer IRQ to "normal" irq domain
ARM: 8231/1: sa1100: introduce irqdomains support
ARM: 8230/1: sa1100: shift IRQs by one
ARM: 8229/1: sa1100: replace irq numbers with names in irq driver
ARM: 8228/1: sa1100: drop entry-macro.S
ARM: 8227/1: sa1100: switch to MULTI_IRQ_HANDLER
ARM: 8241/1: Update processor_modes for hyp and monitor mode
ARM: 8240/1: MCPM: document mcpm_sync_init()
ARM: 8239/1: Introduce {set,clear}_pte_bit
ARM: 8238/1: mm: Refine set_memory_* functions
ARM: 8237/1: fix flush_pfn_alias
...
Pull IOMMU updates from Joerg Roedel:
"This time with:
- A new IOMMU-API call: iommu_map_sg() to map multiple non-contiguous
pages into an IO address space with only one API call. This allows
certain optimizations in the IOMMU driver.
- DMAR device hotplug in the Intel VT-d driver. It is now possible
to hotplug the IOMMU itself.
- A new IOMMU driver for the Rockchip ARM platform.
- Couple of cleanups and improvements in the OMAP IOMMU driver.
- Nesting support for the ARM-SMMU driver.
- Various other small cleanups and improvements.
Please note that this time some branches were also pulled into other
trees, like the DRI and the Tegra tree. The VT-d branch was also
pulled into tip/x86/apic.
Some patches for the AMD IOMMUv2 driver are not in the IOMMU tree but
were merged by Andrew (or finally ended up in the DRI tree)"
* tag 'iommu-updates-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (42 commits)
iommu: Decouple iommu_map_sg from CPU page size
iommu/vt-d: Fix an off-by-one bug in __domain_mapping()
pci, ACPI, iommu: Enhance pci_root to support DMAR device hotplug
iommu/vt-d: Enhance intel-iommu driver to support DMAR unit hotplug
iommu/vt-d: Enhance error recovery in function intel_enable_irq_remapping()
iommu/vt-d: Enhance intel_irq_remapping driver to support DMAR unit hotplug
iommu/vt-d: Search for ACPI _DSM method for DMAR hotplug
iommu/vt-d: Implement DMAR unit hotplug framework
iommu/vt-d: Dynamically allocate and free seq_id for DMAR units
iommu/vt-d: Introduce helper function dmar_walk_resources()
iommu/arm-smmu: add support for DOMAIN_ATTR_NESTING attribute
iommu/arm-smmu: Play nice on non-ARM/SMMU systems
iommu/amd: remove compiler warning due to IOMMU_CAP_NOEXEC
iommu/arm-smmu: add IOMMU_CAP_NOEXEC to the ARM SMMU driver
iommu: add capability IOMMU_CAP_NOEXEC
iommu/arm-smmu: change IOMMU_EXEC to IOMMU_NOEXEC
iommu/amd: Fix accounting of device_state
x86/vt-d: Fix incorrect bit operations in setting values
iommu/rockchip: Allow to compile with COMPILE_TEST
iommu/ipmmu-vmsa: Return proper error if devm_request_irq fails
...
Pull dmaengine updates from Vinod Koul:
"Main features this time are:
- BAM v1.3.0 support form qcom bam dma
- support for Allwinner sun8i dma
- atmels eXtended DMA Controller driver
- chancnt cleanup by Maxime
- fixes spread over drivers"
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (56 commits)
dmaenegine: Delete a check before free_percpu()
dmaengine: ioatdma: fix dma mapping errors
dma: cppi41: add a delay while setting the TD bit
dma: cppi41: wait longer for the HW to return the descriptor
dmaengine: fsl-edma: fixup reg offset and hw S/G support in big-endian model
dmaengine: fsl-edma: fix calculation of remaining bytes
drivers/dma/pch_dma: declare pch_dma_id_table as static
dmaengine: ste_dma40: fix error return code
dma: imx-sdma: clarify about firmware not found error
Documentation: devicetree: Fix Xilinx VDMA specification
dmaengine: pl330: update author info
dmaengine: clarify the issue_pending expectations
dmaengine: at_xdmac: Add DMA_PRIVATE
ARM: dts: at_xdmac: fix bad value of dma-cells in documentation
dmaengine: at_xdmac: fix missing spin_unlock
dmaengine: at_xdmac: fix a bug in transfer residue computation
dmaengine: at_xdmac: fix software lockup at_xdmac_tx_status()
dmaengine: at_xdmac: remove chancnt affectation
dmaengine: at_xdmac: prefer usage of readl/writel_relaxed
dmaengine: xdmac: fix print warning on dma_addr_t variable
...
Pull IPMI driver updates from Corey Minyard:
- Quite a few bug fixes
- A new driver for the powernv
- A new driver for the SMBus interface from the IPMI 2.0 specification
* tag 'for-linus' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi: Check the BT interrupt enable periodically
ipmi: Fix attention handling for system interfaces
ipmi: Periodically check to see if irqs and messages are set right
drivers/char/ipmi: Add powernv IPMI driver
ipmi: Add SMBus interface driver (SSIF)
ipmi: Remove the now unused priority from SMI sender
ipmi: Remove the now unnecessary message queue
ipmi: Make the message handler easier to use for SMI interfaces
ipmi: Move message sending into its own function
ipmi: rename waiting_msgs to waiting_rcv_msgs
ipmi: Fix handling of BMC flags
ipmi: Initialize BMC device attributes
ipmi: Unregister previously registered driver in error case
ipmi: Use the proper type for acpi_handle
ipmi: Fix a bug in hot add/remove
ipmi: Remove useless sysfs_name parameters
ipmi: clean up the device handling for the bmc device
ipmi: Move the address source to string to ipmi-generic code
ipmi: Ignore SSIF in the PNP handling
