Drivers:
- abx80x: handle both XT and RC oscillators, XT failure bit and autocalibration
- m41t80: avoid out of range year values
- rv8803: workaround an i2c HW issue
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Merge tag 'rtc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull more RTC updates from Alexandre Belloni:
"A second pull request for v4.6 with a few fixesi before -rc1. The new
features for abx80x actually make the RTC behave correctly.
Drivers:
- abx80x: handle both XT and RC oscillators, XT failure bit and
autocalibration
- m41t80: avoid out of range year values
- rv8803: workaround an i2c HW issue"
* tag 'rtc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
rtc: abx80x: handle the oscillator failure bit
rtc: abx80x: handle autocalibration
rtc: rv8803: workaround i2c HW issue
rtc: mcp795: add devicetree support
rtc: asm9260: remove incorrect __init/__exit annotations
rtc: m41t80: avoid out of range year values
rtc: s3c: Don't print an error on probe deferral
rtc: rv3029: stop mentioning rv3029c2
NAND:
* Add sunxi_nand randomizer support
* begin refactoring NAND ecclayout structs
* fix pxa3xx_nand dmaengine usage
* brcmnand: fix support for v7.1 controller
* add Qualcomm NAND controller driver
SPI NOR:
* add new ls1021a, ls2080a support to Freescale QuadSPI
* add new flash ID entries
* support bottom-block protection for Winbond flash
* support Status Register Write Protect
* remove broken QPI support for Micron SPI flash
JFFS2:
* improve post-mount CRC scan efficiency
General:
* refactor bcm63xxpart parser, to later extend for NAND
* add writebuf size parameter to mtdram
Other minor code quality improvements
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Merge tag 'for-linus-20160324' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"NAND:
- Add sunxi_nand randomizer support
- begin refactoring NAND ecclayout structs
- fix pxa3xx_nand dmaengine usage
- brcmnand: fix support for v7.1 controller
- add Qualcomm NAND controller driver
SPI NOR:
- add new ls1021a, ls2080a support to Freescale QuadSPI
- add new flash ID entries
- support bottom-block protection for Winbond flash
- support Status Register Write Protect
- remove broken QPI support for Micron SPI flash
JFFS2:
- improve post-mount CRC scan efficiency
General:
- refactor bcm63xxpart parser, to later extend for NAND
- add writebuf size parameter to mtdram
Other minor code quality improvements"
* tag 'for-linus-20160324' of git://git.infradead.org/linux-mtd: (72 commits)
mtd: nand: remove kerneldoc for removed function parameter
mtd: nand: Qualcomm NAND controller driver
dt/bindings: qcom_nandc: Add DT bindings
mtd: nand: don't select chip in nand_chip's block_bad op
mtd: spi-nor: support lock/unlock for a few Winbond chips
mtd: spi-nor: add TB (Top/Bottom) protect support
mtd: spi-nor: add SPI_NOR_HAS_LOCK flag
mtd: spi-nor: use BIT() for flash_info flags
mtd: spi-nor: disallow further writes to SR if WP# is low
mtd: spi-nor: make lock/unlock bounds checks more obvious and robust
mtd: spi-nor: silently drop lock/unlock for already locked/unlocked region
mtd: spi-nor: wait for SR_WIP to clear on initial unlock
mtd: nand: simplify nand_bch_init() usage
mtd: mtdswap: remove useless if (!mtd->ecclayout) test
mtd: create an mtd_oobavail() helper and make use of it
mtd: kill the ecclayout->oobavail field
mtd: nand: check status before reporting timeout
mtd: bcm63xxpart: give width specifier an 'int', not 'size_t'
mtd: mtdram: Add parameter for setting writebuf size
mtd: nand: pxa3xx_nand: kill unused field 'drcmr_cmd'
...
pnfs layout type from Christoph Hellwig. The new layout type is a
variant of the block layout which uses SCSI features to offer improved
fencing and device identification.
Note this pull request also includes the client side of SCSI layout,
with Trond's permission.
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Merge tag 'nfsd-4.6-1' of git://linux-nfs.org/~bfields/linux
Pull more nfsd updates from Bruce Fields:
"Apologies for the previous request, which omitted the top 8 commits
from my for-next branch (including the SCSI layout commits). Thanks
to Trond for spotting my error!"
This actually includes the new layout types, so here's that part of
the pull message repeated:
"Support for a new pnfs layout type from Christoph Hellwig. The new
layout type is a variant of the block layout which uses SCSI features
to offer improved fencing and device identification.
Note this pull request also includes the client side of SCSI layout,
with Trond's permission"
* tag 'nfsd-4.6-1' of git://linux-nfs.org/~bfields/linux:
nfsd: use short read as well as i_size to set eof
nfsd: better layoutupdate bounds-checking
nfsd: block and scsi layout drivers need to depend on CONFIG_BLOCK
nfsd: add SCSI layout support
nfsd: move some blocklayout code
nfsd: add a new config option for the block layout driver
nfs/blocklayout: add SCSI layout support
nfs4.h: add SCSI layout definitions
Here are some final updates for ARM SoC specific dts files:
* The i.MX changes were sent relatively late, and had a dependency
on the clk tree, so I delayed that a bit. Support for the new
i.MX6qp SoC and a couple of new boards is added in this branch.
* Uniphier renames a few files to match the final product names
that were decided by the company, kudos to the kernel developer(s)
for getting support upstream before the product release.
Also two boards are added. The patches were posted early enough
and nice overall, but we forgot to apply them and decided to
give it some more time in linux-next
* at91 has two small bug fixes.
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Merge tag 'armsoc-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull more ARM DT changes from Arnd Bergmann:
"Here are some final updates for ARM SoC specific dts files:
- The i.MX changes were sent relatively late, and had a dependency on
the clk tree, so I delayed that a bit. Support for the new i.MX6qp
SoC and a couple of new boards is added in this branch.
- Uniphier renames a few files to match the final product names that
were decided by the company, kudos to the kernel developer(s) for
getting support upstream before the product release. Also two
boards are added. The patches were posted early enough and nice
overall, but we forgot to apply them and decided to give it some
more time in linux-next
- at91 has two small bug fixes"
* tag 'armsoc-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
ARM: dts: at91: sama5d4 Xplained: don't disable hsmci regulator
ARM: dts: at91: sama5d3 Xplained: don't disable hsmci regulator
ARM: dts: uniphier: add pinmux node for I2C ch4
ARM: dts: uniphier: add @{address} to EEPROM node
ARM: dts: uniphier: add PH1-Pro4 Sanji board support
ARM: dts: uniphier: add PH1-Pro4 Ace board support
ARM: dts: uniphier: enable I2C channel 2 of ProXstream2 Gentil board
ARM: dts: uniphier: add EEPROM node for ProXstream2 Gentil board
ARM: dts: uniphier: add reference clock nodes
ARM: dts: uniphier: rework UniPhier System Bus nodes
ARM: dts: uniphier: factor out ranges property of support card
arm64: dts: uniphier: rename PH1-LD10 to PH1-LD20
ARM: dts: imx53-qsb: Fix gpio button polarity
ARM: dts: vfxxx: Add DAC node for Vybrid SoC
ARM: dts: imx6q: add missing links between ipu2 and mipi dsi
ARM: dts: imx: Add support for Advantech/GE B850v3
ARM: dts: imx: Add support for Advantech/GE B650v3
ARM: dts: imx: Add support for Advantech/GE B450v3
ARM: dts: imx: Add support for Advantech/GE Bx50v3
ARM: dts: imx: Add Advantech BA-16 Qseven module
...
* pm-cpufreq:
cpufreq: governor: Always schedule work on the CPU running update
cpufreq: Always update current frequency before startig governor
cpufreq: Introduce cpufreq_update_current_freq()
cpufreq: Introduce cpufreq_start_governor()
cpufreq: powernv: Add sysfs attributes to show throttle stats
cpufreq: acpi-cpufreq: make Intel/AMD MSR access, io port access static
cpufreq: powernv: Define per_cpu chip pointer to optimize hot-path
cpufreq: acpi-cpufreq: Clean up hot plug notifier callback
intel_pstate: Do not call wrmsrl_on_cpu() with disabled interrupts
cpufreq: Make cpufreq_quick_get() safe to call
* pm-cpuidle:
intel_idle: Support for Intel Xeon Phi Processor x200 Product Family
intel_idle: prevent SKL-H boot failure when C8+C9+C10 enabled
cpuidle: menu: Fall back to polling if next timer event is near
cpuidle: menu: use high confidence factors only when considering polling
Pull thermal updates from Zhang Rui:
- Fix a regression where bogus trip points on some Lenovo laptops start
to screw up thermal control after commit 81ad4276b5 ("Thermal:
initialize thermal zone device correctly").
On these Lenovo laptops, a bogus passive trip point is reported,
which is 0 degree Celsius. Without commit 81ad4276b5, thermal zone
fails to set cooling devices to proper cooling state, which is a bug.
But with commit 81ad4276b5 applied, the processors are always
throttled on these Lenovo laptops because the current temperature is
always higher than the passive trip point.
Fix things to ignore such bogus trip points. (Zhang Rui)
- Introduce Mediatek thermal driver. (Sascha Hauer)
- Introduce devm_ versions of OF thermal sensor register API. (Laxman
Dewangan)
- Changes in Kconfigs to allow compile test on UM arch. (Krzysztof
Kozlowski)
- Introduce Skylake support in intel_pch_thermal driver. (Srinivas
Pandruvada)
- Several small fixes on Rockchip, TI-SoC, Tegra, RCar, and Exynos
thermal drivers.
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (26 commits)
Thermal: Ignore invalid trip points
thermal: trace: migrating thermal traces to use TRACE_DEFINE_ENUM() macros
thermal: intel_pch_thermal: Enable Skylake PCH thermal
thermal: doc: Add details of devm_thermal_zone_of_sensor_{register,unregister}
thermal: of-thermal: Add devm version of thermal_zone_of_sensor_register
thermal: doc: Add details of thermal_zone_of_sensor_{register,unregister}
thermal: exynos: Defer probe if vtmu is present but not registered
thermal: exynos: Use devm_regulator_get_optional() for vtmu
thermal: exynos: List vtmu-supply as optional property in DT binding
thermal: exynos: Print a message about exceeded number of supported trip-points
thermal: exynos: Document number of supported trip-points
thermal: exynos: Document compatible for Exynos5433 TMU
thermal: mtk: allow compile testing on UM
thermal: tegra_soctherm: fix sign bit of temperature
thermal: Fix build error of missing devm_ioremap_resource on UM
thermal: ti-soc-thermal: clean up the error handling a bit
thermal: rcar: Use ARCH_RENESAS
thermal: rcar_thermal: don't open code of_device_get_match_data()
thermal: db8500_cpufreq_cooling: Compile with COMPILE_TEST
thermal: rockchip: fix the tsadc sequence output on rk3228/rk3399
...
Pull irq fixes from Thomas Gleixner:
"A small set of fixes for the usual ARM/SOC irqchip drivers
- A set of fixes for mbigen to handle multiple devices in a hardware
module proper
- A cleanup for the mbigen config option which was pointlessly user
configurable.
- A cleanup for tegra replacing open coded functionality by the
proper core function
The config cleanup touches arch/arm64/Kconfig.platforms to select the
irq chip for the related platform"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mbigen: Make CONFIG_HISILICON_IRQ_MBIGEN a hidden option
ARM64: Kconfig: Select mbigen interrupt controller on Hisilicon platform
irqchip/mbigen: Handle multiple device nodes in a mbigen module
irqchip/mbigen: Adjust DT bindings to handle multiple devices in a module
irqchip/tegra: Switch to use irq_domain_free_irqs_common
Pull locking fixes from Ingo Molnar:
"Documentation updates and a bitops ordering fix"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
bitops: Do not default to __clear_bit() for __clear_bit_unlock()
documentation: Clarify compiler store-fusion example
documentation: Transitivity is not cumulativity
documentation: Add alternative release-acquire outcome
documentation: Distinguish between local and global transitivity
documentation: Subsequent writes ordered by rcu_dereference()
documentation: Remove obsolete reference to RCU-protected indexes
documentation: Fix memory-barriers.txt section references
documentation: Fix control dependency and identical stores
Pull networking bugfixes from David Miller:
"Several bug fixes rolling in, some for changes introduced in this
merge window, and some for problems that have existed for some time:
1) Fix prepare_to_wait() handling in AF_VSOCK, from Claudio Imbrenda.
2) The new DST_CACHE should be a silent config option, from Dave
Jones.
3) inet_current_timestamp() unintentionally truncates timestamps to
16-bit, from Deepa Dinamani.
4) Missing reference to netns in ppp, from Guillaume Nault.
5) Free memory reference in hv_netvsc driver, from Haiyang Zhang.
6) Missing kernel doc documentation for function arguments in various
spots around the networking, from Luis de Bethencourt.
7) UDP stopped receiving broadcast packets properly, due to
overzealous multicast checks, fix from Paolo Abeni"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
net: ping: make ping_v6_sendmsg static
hv_netvsc: Fix the order of num_sc_offered decrement
net: Fix typos and whitespace.
hv_netvsc: Fix the array sizes to be max supported channels
hv_netvsc: Fix accessing freed memory in netvsc_change_mtu()
ppp: take reference on channels netns
net: Reset encap_level to avoid resetting features on inner IP headers
net: mediatek: fix checking for NULL instead of IS_ERR() in .probe
net: phy: at803x: Request 'reset' GPIO only for AT8030 PHY
at803x: fix reset handling
AF_VSOCK: Shrink the area influenced by prepare_to_wait
Revert "vsock: Fix blocking ops call in prepare_to_wait"
macb: fix PHY reset
ipv4: initialize flowi4_flags before calling fib_lookup()
fsl/fman: Workaround for Errata A-007273
ipv4: fix broadcast packets reception
net: hns: bug fix about the overflow of mss
net: hns: adds limitation for debug port mtu
net: hns: fix the bug about mtu setting
net: hns: fixes a bug of RSS
...
Significant refactoring of Dell laptop drivers, modularizing the smbios code.
Multiple new platforms added for ideapad, asus, dell, and alienware using
existing quirks. A few fixes and cleanups.
hp-wmi:
- Remove GPS rfkill support via pre-2009 interface
- fix unregister order in hp_wmi_rfkill_setup() once again
ideapad-laptop:
- Add ideapad Y700 (15) to the no_hw_rfkill DMI list
fujitsu-laptop:
- Support radio toggle button
intel-hid:
- allocate correct amount of memory for private struct
platform/x86:
- Make intel_scu_ipc explicitly non-modular
intel_pmc_ipc:
- Avoid pending IPC1 command during legacy suspend
- Fix GCR register base address and length
asus-nb-wmi:
- add wapf=4 quirk for ASUS X75VD
intel_telemetry_pltdrv:
- Change verbosity control bits
dell-rbtn:
- Add a comment about the XPS 13 9350
dell-wmi, dell-laptop:
- depends DMI
dell-wmi:
- support Dell Inspiron M5110
- properly process Dell Instant Launch hotkey
- enable receiving WMI events on Dell Vostro V131
- Support new hotkeys on the XPS 13 9350 (Skylake)
- Clean up hotkey table size check
- Stop storing pointers to DMI tables
dell-laptop:
- move dell_smi_error() to dell-smbios
- use dell_smbios_find_token() instead of find_token_location()
- use dell_smbios_find_token() instead of find_token_id()
- extract SMBIOS-related code to a separate module
dell-smbios:
- rename dell_smi_error() to dell_smbios_error()
- make da_tokens static
- remove find_token_{id,location}()
- implement new function for finding DMI table 0xDA tokens
- make the SMBIOS buffer static
- return the SMBIOS buffer from dell_smbios_get_buffer()
- don't return an SMBIOS buffer from dell_smbios_send_request()
- don't pass an SMBIOS buffer to dell_smbios_send_request()
- rename dell_send_request() to dell_smbios_send_request()
- rename release_buffer() to dell_smbios_release_buffer()
- rename clear_buffer() to dell_smbios_clear_buffer()
- rename get_buffer() to dell_smbios_get_buffer()
dell-led:
- use dell_smbios_send_request() for performing SMBIOS calls
- use dell_smbios_find_token() for finding mic DMI tokens
toshiba_acpi:
- Add a module parameter to disable hotkeys registration
- Add sysfs entries for the Cooling Method feature
- Add support for cooling method feature
Documentation/ABI:
- Update sysfs-driver-toshiba_acpi file
thinkpad_acpi:
- Remove ambiguous logging for "Unsupported brightness interface"
alienware-wmi:
- whitespace improvements
- Add support for two new systems: ASM200 and ASM201.
- Add support for deep sleep control.
- Add initial support for alienware graphics amplifier.
- Add support for new platform: X51-R3
- Clean up whitespace for ASM100 platform
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Merge tag 'platform-drivers-x86-v4.6-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
Pull x86 platform driver updates from Darren Hart:
"Significant refactoring of Dell laptop drivers, modularizing the
smbios code. Multiple new platforms added for ideapad, asus, dell,
and alienware using existing quirks. A few fixes and cleanups.
hp-wmi:
- Remove GPS rfkill support via pre-2009 interface
- fix unregister order in hp_wmi_rfkill_setup() once again
ideapad-laptop:
- Add ideapad Y700 (15) to the no_hw_rfkill DMI list
fujitsu-laptop:
- Support radio toggle button
intel-hid:
- allocate correct amount of memory for private struct
platform/x86:
- Make intel_scu_ipc explicitly non-modular
intel_pmc_ipc:
- Avoid pending IPC1 command during legacy suspend
- Fix GCR register base address and length
asus-nb-wmi:
- add wapf=4 quirk for ASUS X75VD
intel_telemetry_pltdrv:
- Change verbosity control bits
dell-rbtn:
- Add a comment about the XPS 13 9350
dell-wmi, dell-laptop:
- depends DMI
dell-wmi:
- support Dell Inspiron M5110
- properly process Dell Instant Launch hotkey
- enable receiving WMI events on Dell Vostro V131
- Support new hotkeys on the XPS 13 9350 (Skylake)
- Clean up hotkey table size check
- Stop storing pointers to DMI tables
dell-laptop:
- move dell_smi_error() to dell-smbios
- use dell_smbios_find_token() instead of find_token_location()
- use dell_smbios_find_token() instead of find_token_id()
- extract SMBIOS-related code to a separate module
dell-smbios:
- rename dell_smi_error() to dell_smbios_error()
- make da_tokens static
- remove find_token_{id,location}()
- implement new function for finding DMI table 0xDA tokens
- make the SMBIOS buffer static
- return the SMBIOS buffer from dell_smbios_get_buffer()
- don't return an SMBIOS buffer from dell_smbios_send_request()
- don't pass an SMBIOS buffer to dell_smbios_send_request()
- rename dell_send_request() to dell_smbios_send_request()
- rename release_buffer() to dell_smbios_release_buffer()
- rename clear_buffer() to dell_smbios_clear_buffer()
- rename get_buffer() to dell_smbios_get_buffer()
dell-led:
- use dell_smbios_send_request() for performing SMBIOS calls
- use dell_smbios_find_token() for finding mic DMI tokens
toshiba_acpi:
- Add a module parameter to disable hotkeys registration
- Add sysfs entries for the Cooling Method feature
- Add support for cooling method feature
Documentation/ABI:
- Update sysfs-driver-toshiba_acpi file
thinkpad_acpi:
- Remove ambiguous logging for "Unsupported brightness interface"
alienware-wmi:
- whitespace improvements
- Add support for two new systems: ASM200 and ASM201.
- Add support for deep sleep control.
- Add initial support for alienware graphics amplifier.
- Add support for new platform: X51-R3
- Clean up whitespace for ASM100 platform"
* tag 'platform-drivers-x86-v4.6-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (47 commits)
hp-wmi: Remove GPS rfkill support via pre-2009 interface
hp-wmi: fix unregister order in hp_wmi_rfkill_setup() once again
dell-wmi: support Dell Inspiron M5110
dell-wmi: properly process Dell Instant Launch hotkey
dell-wmi: enable receiving WMI events on Dell Vostro V131
dell-smbios: rename dell_smi_error() to dell_smbios_error()
dell-laptop: move dell_smi_error() to dell-smbios
ideapad-laptop: Add ideapad Y700 (15) to the no_hw_rfkill DMI list
fujitsu-laptop: Support radio toggle button
intel-hid: allocate correct amount of memory for private struct
platform/x86: Make intel_scu_ipc explicitly non-modular
intel_pmc_ipc: Avoid pending IPC1 command during legacy suspend
intel_pmc_ipc: Fix GCR register base address and length
asus-nb-wmi: add wapf=4 quirk for ASUS X75VD
intel_telemetry_pltdrv: Change verbosity control bits
dell-rbtn: Add a comment about the XPS 13 9350
dell-wmi: Support new hotkeys on the XPS 13 9350 (Skylake)
dell-wmi: Clean up hotkey table size check
dell-wmi, dell-laptop: depends DMI
dell-wmi: Stop storing pointers to DMI tables
...
Bunch of small fixupes all over. Plus a dma-buf patch that Sumit asked me
to cherry-pick since that's the only one he had in his tree.
There's a sparse issue outstanding in the color mgr stuff, but Lionel is
still working on something that actually appeases sparse.
* tag 'topic/drm-misc-2016-03-22' of git://anongit.freedesktop.org/drm-intel:
dma-buf/fence: fix fence_is_later v2
dma-buf: Update docs for SYNC ioctl
drm: remove excess description
dma-buf, drm, ion: Propagate error code from dma_buf_start_cpu_access()
drm/atmel-hlcdc: use helper to get crtc state
drm/atomic: use helper to get crtc state
This adds the necessary data for handling io voltage domains on the rk3399.
As interesting tidbit, the rk3399 contains two separate iodomain areas.
One in the regular General Register Files (GRF) and one in PMUGRF in the
pmu power domain.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This patch updates the documentation file adding the Cooling Method
entry.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Pull more mailbox updates from Jassi Brar:
"Device tree bindings and driver for TI's Message-Manager controller.
Due to some last minute cosmetic changes, the driver was not included
in the first pull request, otherwise the driver has been reviewed
twice"
* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: Introduce TI message manager driver
Documentation: dt: mailbox: Add TI Message Manager
new device support in terms of LoC, but there has been some cleanup
in the core as well as the usual minor clk additions to various
drivers.
Core:
- parent tracking has been simplified
- CLK_IS_ROOT is now a no-op flag, cleaning up drivers has started
- of_clk_init() doesn't consider disabled DT nodes anymore
- clk_unregister() had an error path bug squashed
- of_clk_get_parent_count() has been fixed to only return unsigned ints
- HAVE_MACH_CLKDEV is removed now that the last arch user (ARM) is gone
New Drivers:
- NXP LPC18xx creg
- QCOM IPQ4019 GCC
- TI dm814x ADPLL
- i.MX6QP
Updates:
- Cyngus audio clks found on Broadcom iProc devices
- Non-critical fixes for BCM2385 PLLs
- Samsung exynos5433 updates for clk id errors, HDMI support,
suspend/resume simplifications
- USB, CAN, LVDS, and FCP clks on shmobile devices
- sunxi got support for more clks on new SoCs and went through a minor
refactoring/rewrite to use a simpler factor clk construct
- rockchip added some more clk ids and added suport for fraction dividers
- QCOM GDSCs in msm8996
- A new devm helper to make adding custom actions simpler (acked by Greg)
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"The clk changes for this release cycle are mostly dominated by new
device support in terms of LoC, but there has been some cleanup in the
core as well as the usual minor clk additions to various drivers.
Core:
- parent tracking has been simplified
- CLK_IS_ROOT is now a no-op flag, cleaning up drivers has started
- of_clk_init() doesn't consider disabled DT nodes anymore
- clk_unregister() had an error path bug squashed
- of_clk_get_parent_count() has been fixed to only return unsigned ints
- HAVE_MACH_CLKDEV is removed now that the last arch user (ARM) is gone
New Drivers:
- NXP LPC18xx creg
- QCOM IPQ4019 GCC
- TI dm814x ADPLL
- i.MX6QP
Updates:
- Cyngus audio clks found on Broadcom iProc devices
- Non-critical fixes for BCM2385 PLLs
- Samsung exynos5433 updates for clk id errors, HDMI support,
suspend/resume simplifications
- USB, CAN, LVDS, and FCP clks on shmobile devices
- sunxi got support for more clks on new SoCs and went through a
minor refactoring/rewrite to use a simpler factor clk construct
- rockchip added some more clk ids and added suport for fraction
dividers
- QCOM GDSCs in msm8996
- A new devm helper to make adding custom actions simpler (acked by Greg)"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (197 commits)
clk: bcm2835: fix check of error code returned by devm_ioremap_resource()
clk: renesas: div6: use RENESAS for #define
clk: renesas: Rename header file renesas.h
clk: max77{686,802}: Remove CLK_IS_ROOT
clk: versatile: Remove CLK_IS_ROOT
clk: sunxi: Remove use of variable length array
clk: fixed-rate: Remove CLK_IS_ROOT
clk: qcom: Remove CLK_IS_ROOT
doc: dt: add documentation for lpc1850-creg-clk driver
clk: add lpc18xx creg clk driver
clk: lpc32xx: fix compilation warning
clk: xgene: Add missing parenthesis when clearing divider value
clk: mb86s7x: Remove CLK_IS_ROOT
clk: x86: Remove clkdev.h and clk.h includes
clk: x86: Remove CLK_IS_ROOT
clk: mvebu: Remove CLK_IS_ROOT
clk: renesas: move drivers to renesas directory
clk: si5{14,351,70}: Remove CLK_IS_ROOT
clk: scpi: Remove CLK_IS_ROOT
clk: s2mps11: Remove CLK_IS_ROOT
...
Merge third patch-bomb from Andrew Morton:
- more ocfs2 changes
- a few hotfixes
- Andy's compat cleanups
- misc fixes to fatfs, ptrace, coredump, cpumask, creds, eventfd,
panic, ipmi, kgdb, profile, kfifo, ubsan, etc.
- many rapidio updates: fixes, new drivers.
- kcov: kernel code coverage feature. Like gcov, but not
"prohibitively expensive".
- extable code consolidation for various archs
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (81 commits)
ia64/extable: use generic search and sort routines
x86/extable: use generic search and sort routines
s390/extable: use generic search and sort routines
alpha/extable: use generic search and sort routines
kernel/...: convert pr_warning to pr_warn
drivers: dma-coherent: use memset_io for DMA_MEMORY_IO mappings
drivers: dma-coherent: use MEMREMAP_WC for DMA_MEMORY_MAP
memremap: add MEMREMAP_WC flag
memremap: don't modify flags
kernel/signal.c: add compile-time check for __ARCH_SI_PREAMBLE_SIZE
mm/mprotect.c: don't imply PROT_EXEC on non-exec fs
ipc/sem: make semctl setting sempid consistent
ubsan: fix tree-wide -Wmaybe-uninitialized false positives
kfifo: fix sparse complaints
scripts/gdb: account for changes in module data structure
scripts/gdb: add cmdline reader command
scripts/gdb: add version command
kernel: add kcov code coverage
profile: hide unused functions when !CONFIG_PROC_FS
hpwdt: use nmi_panic() when kernel panics in NMI handler
...
- A few minor core fixups needed for the next patch series
- The IB SRIOV series. This has bounced around for several versions.
Of note is the fact that the first patch in this series effects
the net core. It was directed to netdev and DaveM for each iteration
of the series (three versions total). Dave did not object, but did
not respond either. I've taken this as permission to move forward
with the series.
- The new Intel X722 iWARP driver
- A huge set of updates to the Intel hfi1 driver. Of particular interest
here is that we have left the driver in staging since it still has an
API that people object to. Intel is working on a fix, but getting
these patches in now helps keep me sane as the upstream and Intel's
trees were over 300 patches apart.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull more rdma updates from Doug Ledford:
"Round two of 4.6 merge window patches.
This is a monster pull request. I held off on the hfi1 driver updates
(the hfi1 driver is intimately tied to the qib driver and the new
rdmavt software library that was created to help both of them) in my
first pull request. The hfi1/qib/rdmavt update is probably 90% of
this pull request. The hfi1 driver is being left in staging so that
it can be fixed up in regards to the API that Al and yourself didn't
like. Intel has agreed to do the work, but in the meantime, this
clears out 300+ patches in the backlog queue and brings my tree and
their tree closer to sync.
This also includes about 10 patches to the core and a few to mlx5 to
create an infrastructure for configuring SRIOV ports on IB devices.
That series includes one patch to the net core that we sent to netdev@
and Dave Miller with each of the three revisions to the series. We
didn't get any response to the patch, so we took that as implicit
approval.
Finally, this series includes Intel's new iWARP driver for their x722
cards. It's not nearly the beast as the hfi1 driver. It also has a
linux-next merge issue, but that has been resolved and it now passes
just fine.
Summary:
- A few minor core fixups needed for the next patch series
- The IB SRIOV series. This has bounced around for several versions.
Of note is the fact that the first patch in this series effects the
net core. It was directed to netdev and DaveM for each iteration
of the series (three versions total). Dave did not object, but did
not respond either. I've taken this as permission to move forward
with the series.
- The new Intel X722 iWARP driver
- A huge set of updates to the Intel hfi1 driver. Of particular
interest here is that we have left the driver in staging since it
still has an API that people object to. Intel is working on a fix,
but getting these patches in now helps keep me sane as the upstream
and Intel's trees were over 300 patches apart"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (362 commits)
IB/ipoib: Allow mcast packets from other VFs
IB/mlx5: Implement callbacks for manipulating VFs
net/mlx5_core: Implement modify HCA vport command
net/mlx5_core: Add VF param when querying vport counter
IB/ipoib: Add ndo operations for configuring VFs
IB/core: Add interfaces to control VF attributes
IB/core: Support accessing SA in virtualized environment
IB/core: Add subnet prefix to port info
IB/mlx5: Fix decision on using MAD_IFC
net/core: Add support for configuring VF GUIDs
IB/{core, ulp} Support above 32 possible device capability flags
IB/core: Replace setting the zero values in ib_uverbs_ex_query_device
net/mlx5_core: Introduce offload arithmetic hardware capabilities
net/mlx5_core: Refactor device capability function
net/mlx5_core: Fix caching ATOMIC endian mode capability
ib_srpt: fix a WARN_ON() message
i40iw: Replace the obsolete crypto hash interface with shash
IB/hfi1: Add SDMA cache eviction algorithm
IB/hfi1: Switch to using the pin query function
IB/hfi1: Specify mm when releasing pages
...
kcov provides code coverage collection for coverage-guided fuzzing
(randomized testing). Coverage-guided fuzzing is a testing technique
that uses coverage feedback to determine new interesting inputs to a
system. A notable user-space example is AFL
(http://lcamtuf.coredump.cx/afl/). However, this technique is not
widely used for kernel testing due to missing compiler and kernel
support.
kcov does not aim to collect as much coverage as possible. It aims to
collect more or less stable coverage that is function of syscall inputs.
To achieve this goal it does not collect coverage in soft/hard
interrupts and instrumentation of some inherently non-deterministic or
non-interesting parts of kernel is disbled (e.g. scheduler, locking).
Currently there is a single coverage collection mode (tracing), but the
API anticipates additional collection modes. Initially I also
implemented a second mode which exposes coverage in a fixed-size hash
table of counters (what Quentin used in his original patch). I've
dropped the second mode for simplicity.
This patch adds the necessary support on kernel side. The complimentary
compiler support was added in gcc revision 231296.
We've used this support to build syzkaller system call fuzzer, which has
found 90 kernel bugs in just 2 months:
https://github.com/google/syzkaller/wiki/Found-Bugs
We've also found 30+ bugs in our internal systems with syzkaller.
Another (yet unexplored) direction where kcov coverage would greatly
help is more traditional "blob mutation". For example, mounting a
random blob as a filesystem, or receiving a random blob over wire.
Why not gcov. Typical fuzzing loop looks as follows: (1) reset
coverage, (2) execute a bit of code, (3) collect coverage, repeat. A
typical coverage can be just a dozen of basic blocks (e.g. an invalid
input). In such context gcov becomes prohibitively expensive as
reset/collect coverage steps depend on total number of basic
blocks/edges in program (in case of kernel it is about 2M). Cost of
kcov depends only on number of executed basic blocks/edges. On top of
that, kernel requires per-thread coverage because there are always
background threads and unrelated processes that also produce coverage.
With inlined gcov instrumentation per-thread coverage is not possible.
kcov exposes kernel PCs and control flow to user-space which is
insecure. But debugfs should not be mapped as user accessible.
Based on a patch by Quentin Casasnovas.
[akpm@linux-foundation.org: make task_struct.kcov_mode have type `enum kcov_mode']
[akpm@linux-foundation.org: unbreak allmodconfig]
[akpm@linux-foundation.org: follow x86 Makefile layout standards]
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: syzkaller <syzkaller@googlegroups.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Tavis Ormandy <taviso@google.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Kostya Serebryany <kcc@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Kees Cook <keescook@google.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: David Drysdale <drysdale@google.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add mport character device driver to provide user space interface to
basic RapidIO subsystem operations.
See included Documentation/rapidio/mport_cdev.txt for more details.
[akpm@linux-foundation.org: fix printk warning on i386]
[dan.carpenter@oracle.com: mport_cdev: fix some error codes]
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Barry Wood <barry.wood@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: Barry Wood <barry.wood@idt.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Replace "all-or-nothing" debug output with controlled debug output using
functional block masks. This allows run time control of debug messages
through 'dbg_level' module parameter.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FAT has long supported its own default file name encoding config
setting, separate from CONFIG_NLS_DEFAULT.
However, if UTF-8 encoded file names are desired FAT character set
should not be set to utf8 since this would make file names case
sensitive even if case insensitive matching is requested. Instead,
"utf8" mount options should be provided to enable UTF-8 file names in
FAT file system.
Unfortunately, there was no possibility to set the default value of this
option so on UTF-8 system "utf8" mount option had to be added manually
to most FAT mounts.
This patch adds config option to set such default value.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This document will describe OCFS2 online file check feature. OCFS2 is
often used in high-availaibility systems. However, OCFS2 usually
converts the filesystem to read-only when encounters an error. This may
not be necessary, since turning the filesystem read-only would affect
other running processes as well, decreasing availability.
Then, a mount option (errors=continue) is introduced, which would return
the -EIO errno to the calling process and terminate furhter processing
so that the filesystem is not corrupted further. The filesystem is not
converted to read-only, and the problematic file's inode number is
reported in the kernel log. The user can try to check/fix this file via
online filecheck feature.
Signed-off-by: Gang He <ghe@suse.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Create sysfs attributes to export throttle information in
/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats directory. The
newly added sysfs files are as follows:
1)/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/turbo_stat
2)/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/sub-turbo_stat
3)/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/unthrottle
4)/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/powercap
5)/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/overtemp
6)/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/supply_fault
7)/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/overcurrent
8)/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/occ_reset
Detailed explanation of each attribute is added to
Documentation/ABI/testing/sysfs-devices-system-cpu
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull i2c updates from Wolfram Sang:
"Mostly usual driver updates and improvements. The changelog should
give an idea. Standing out is the i2c-qup driver with lots of new
capabilities and we also have now an i2c-demuxer.
I'd especially like to welcome Peter Rosin as the i2c-mux maintainer.
He has an interesting series for muxes in the queue and agreed to look
after this part of the subsystem. Thank you, Peter, and welcome
again!
The octeon changes were applied pretty recently before the merge
window. I am aware. They are the first (and relatively simple)
patches of a larger overhaul to this driver. In case something goes
wrong with them, they are easy to fix (or revert). The advantage I
see is that they are out of the way, and I can concentrate on the next
block of patches. I really would like to apply the overhaul in
smaller batches to avoid regressions. And waiting a cycle for the
introductory patches seemed too much of a delay for me"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (39 commits)
i2c: octeon: Support I2C_M_RECV_LEN
i2c: octeon: Cleanup resource allocation code
i2c: octeon: Cleanup i2c-octeon driver
MAINTAINERS: add Peter Rosin as i2c mux maintainer
dt-bindings: i2c: Spelling s/propoerty/property/
i2c: immediately mark ourselves as registered
i2c: i801: sort IDs alphabetically
MAINTAINERS: Mika and me are designated reviewers for I2C DESIGNWARE
i2c: octeon: Cleanup kerneldoc comments
i2c: do not use internal data from driver core
i2c: cadence: Fix the kernel-doc warnings
i2c: imx: remove extra spaces.
i2c: rcar: don't open code of_device_get_match_data()
i2c: qup: Fix fifo handling after adding V2 support
i2c: xiic: Implement power management
i2c: piix4: Pre-shift the port number
i2c: piix4: Always use the same type for port
i2c: piix4: Support alternative port selection register
i2c: tegra: don't open code of_device_get_match_data()
i2c: riic, sh_mobile, rcar: Use ARCH_RENESAS
...
Pull SCSI target updates from Nicholas Bellinger:
"The highlights this round include:
- Add target_alloc_session() w/ callback helper for doing se_session
allocation + tag + se_node_acl lookup. (HCH + nab)
- Tree-wide fabric driver conversion to use target_alloc_session()
- Convert sbp-target to use percpu_ida tag pre-allocation, and
TARGET_SCF_ACK_KREF I/O krefs (Chris Boot + nab)
- Convert usb-gadget to use percpu_ida tag pre-allocation, and
TARGET_SCF_ACK_KREF I/O krefs (Andrzej Pietrasiewicz + nab)
- Convert xen-scsiback to use percpu_ida tag pre-allocation, and
TARGET_SCF_ACK_KREF I/O krefs (Juergen Gross + nab)
- Convert tcm_fc to use TARGET_SCF_ACK_KREF I/O + TMR krefs
- Convert ib_srpt to use percpu_ida tag pre-allocation
- Add DebugFS node for qla2xxx target sess list (Quinn)
- Rework iser-target connection termination (Jenny + Sagi)
- Convert iser-target to new CQ API (HCH)
- Add pass-through WRITE_SAME support for IBLOCK (Mike Christie)
- Introduce data_bitmap for asynchronous access of data area (Sheng
Yang + Andy)
- Fix target_release_cmd_kref shutdown comp leak (Himanshu Madhani)
Also, there is a separate PULL request coming for cxgb4 NIC driver
prerequisites for supporting hw iscsi segmentation offload (ISO), that
will be the base for a number of v4.7 developments involving
iscsi-target hw offloads"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (36 commits)
target: Fix target_release_cmd_kref shutdown comp leak
target: Avoid DataIN transfers for non-GOOD SAM status
target/user: Report capability of handling out-of-order completions to userspace
target/user: Fix size_t format-spec build warning
target/user: Don't free expired command when time out
target/user: Introduce data_bitmap, replace data_length/data_head/data_tail
target/user: Free data ring in unified function
target/user: Use iovec[] to describe continuous area
target: Remove enum transport_lunflags_table
target/iblock: pass WRITE_SAME to device if possible
iser-target: Kill the ->isert_cmd back pointer in struct iser_tx_desc
iser-target: Kill struct isert_rdma_wr
iser-target: Convert to new CQ API
iser-target: Split and properly type the login buffer
iser-target: Remove ISER_RECV_DATA_SEG_LEN
iser-target: Remove impossible condition from isert_wait_conn
iser-target: Remove redundant wait in release_conn
iser-target: Rework connection termination
iser-target: Separate flows for np listeners and connections cma events
iser-target: Add new state ISER_CONN_BOUND to isert_conn
...
This time with:
* Updates for the Exynos IOMMU driver to make use of default
domains and to add support for the SYSMMU v5
* New Mediatek IOMMU driver
* Support for the ARMv7 short descriptor format in the
io-pgtable code
* Default domain support for the ARM SMMU
* Couple of other small fixes all over the place
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Merge tag 'iommu-updates-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
- updates for the Exynos IOMMU driver to make use of default domains
and to add support for the SYSMMU v5
- new Mediatek IOMMU driver
- support for the ARMv7 short descriptor format in the io-pgtable code
- default domain support for the ARM SMMU
- couple of other small fixes all over the place
* tag 'iommu-updates-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (41 commits)
iommu/ipmmu-vmsa: Add r8a7795 DT binding
iommu/mediatek: Check for NULL instead of IS_ERR()
iommu/io-pgtable-armv7s: Fix kmem_cache_alloc() flags
iommu/mediatek: Fix handling of of_count_phandle_with_args result
iommu/dma: Fix NEED_SG_DMA_LENGTH dependency
iommu/mediatek: Mark PM functions as __maybe_unused
iommu/mediatek: Select ARM_DMA_USE_IOMMU
iommu/exynos: Use proper readl/writel register interface
iommu/exynos: Pointers are nto physical addresses
dts: mt8173: Add iommu/smi nodes for mt8173
iommu/mediatek: Add mt8173 IOMMU driver
memory: mediatek: Add SMI driver
dt-bindings: mediatek: Add smi dts binding
dt-bindings: iommu: Add binding for mediatek IOMMU
iommu/ipmmu-vmsa: Use ARCH_RENESAS
iommu/exynos: Support multiple attach_device calls
iommu/exynos: Add Maintainers entry for Exynos SYSMMU driver
iommu/exynos: Add support for v5 SYSMMU
iommu/exynos: Update device tree documentation
iommu/exynos: Add support for SYSMMU controller with bogus version reg
...
Commit d67ef35fff ("clarify documentation for
net.ipv4.igmp_max_memberships") mistakenly indented a block of
documentation such that it now looks like it belongs to a specific sysctl.
Restore that block's original position.
Cc: Jeremy Eder <jeder@redhat.com>
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull btrfs updates from Chris Mason:
"We have a good sized cleanup of our internal read ahead code, and the
first series of commits from Chandan to enable PAGE_SIZE > sectorsize
Otherwise, it's a normal series of cleanups and fixes, with many
thanks to Dave Sterba for doing most of the patch wrangling this time"
* 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (82 commits)
btrfs: make sure we stay inside the bvec during __btrfs_lookup_bio_sums
btrfs: Fix misspellings in comments.
btrfs: Print Warning only if ENOSPC_DEBUG is enabled
btrfs: scrub: silence an uninitialized variable warning
btrfs: move btrfs_compression_type to compression.h
btrfs: rename btrfs_print_info to btrfs_print_mod_info
Btrfs: Show a warning message if one of objectid reaches its highest value
Documentation: btrfs: remove usage specific information
btrfs: use kbasename in btrfsic_mount
Btrfs: do not collect ordered extents when logging that inode exists
Btrfs: fix race when checking if we can skip fsync'ing an inode
Btrfs: fix listxattrs not listing all xattrs packed in the same item
Btrfs: fix deadlock between direct IO reads and buffered writes
Btrfs: fix extent_same allowing destination offset beyond i_size
Btrfs: fix file loss on log replay after renaming a file and fsync
Btrfs: fix unreplayable log after snapshot delete + parent dir fsync
Btrfs: fix lockdep deadlock warning due to dev_replace
btrfs: drop unused argument in btrfs_ioctl_get_supported_features
btrfs: add GET_SUPPORTED_FEATURES to the control device ioctls
btrfs: change max_inline default to 2048
...
Add device tree support to the rtc-mcp795 driver.
Signed-off-by: Emil Bartczak <emilbart@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
- Fix ABI regression of MMC BLK ioctl
- Remove the unused MMC_DATA_STREAM flag
- Enable asynchronous system PM for the host device
- Minor fixes and clean-ups
SDHCI host:
Throughout the years, the numbers of SDHCI variants have increased and so
has also the numbers of SDHCI callbacks/quirks. The purpose of these
callbacks/quirks were to enable SDHCI to deal with variant specific
requirements, but unfortunate this method didn't scale. Instead we have
ended up with a mess. Not only did the code become suboptimal but also
highly fragile.
Lately many discussions of how to move forward with SDHCI has taken place
at the MMC mailing list. Step by step, we aim to turn SDHCI's common code
into a set of library functions. This will enable for optimizations and
allow some of the existing callbacks/quirks to be removed, which also
should help to make the code less fragile.
Therefore I am also really pleased to announce that Adrian Hunter (Intel)
has volunteered to step in as the maintainer for SDHCI.
Future wise, I hope the community around SDHCI will continue to grow and
that this release cycle can be the starting point of moving SDHCI into a
better shape. As a matter of fact, already in this cycle the re-factoring
has begun, but of course there are also fixes and new features included.
Some highlights:
- sdhci-iproc: Add support for Broadcom's BCM2835 eMMC IP
- sdhci-acpi: Add support for QCOM controllers
- sdhci-pic32: Add new SDHCI variant for PIC32MZDA
Other hosts:
- atmel-mci: Fix a NULL pointer dereference
- mediatek: Add SD write-protect support
- mmc_spi: Fix card detect in GPIO case
- tmio/sdhi: Add r8a7795 support
- tmio/sdhi: Some fixes and clean-ups
- dw_mmc: Add HW reset support
- dw_mmc: Some fixes and clean-ups
- sunxi: Add support for MMC DDR52 mode
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Merge tag 'mmc-v4.6' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Fix ABI regression of MMC BLK ioctl
- Remove the unused MMC_DATA_STREAM flag
- Enable asynchronous system PM for the host device
- Minor fixes and clean-ups
SDHCI host:
Throughout the years, the numbers of SDHCI variants have increased
and so has also the numbers of SDHCI callbacks/quirks. The purpose
of these callbacks/quirks were to enable SDHCI to deal with variant
specific requirements, but unfortunate this method didn't scale.
Instead we have ended up with a mess. Not only did the code become
suboptimal but also highly fragile.
Lately many discussions of how to move forward with SDHCI has taken
place at the MMC mailing list. Step by step, we aim to turn
SDHCI's common code into a set of library functions. This will
enable for optimizations and allow some of the existing callbacks
and quirks to be removed, which also should help to make the code
less fragile.
Therefore I am also really pleased to announce that Adrian Hunter
(Intel) has volunteered to step in as the maintainer for SDHCI.
Future wise, I hope the community around SDHCI will continue to
grow and that this release cycle can be the starting point of
moving SDHCI into a better shape. As a matter of fact, already in
this cycle the re-factoring has begun, but of course there are also
fixes and new features included. Some highlights:
- sdhci-iproc: Add support for Broadcom's BCM2835 eMMC IP
- sdhci-acpi: Add support for QCOM controllers
- sdhci-pic32: Add new SDHCI variant for PIC32MZDA
Other hosts:
- atmel-mci: Fix a NULL pointer dereference
- mediatek: Add SD write-protect support
- mmc_spi: Fix card detect in GPIO case
- tmio/sdhi: Add r8a7795 support
- tmio/sdhi: Some fixes and clean-ups
- dw_mmc: Add HW reset support
- dw_mmc: Some fixes and clean-ups
- sunxi: Add support for MMC DDR52 mode"
* tag 'mmc-v4.6' of git://git.linaro.org/people/ulf.hansson/mmc: (123 commits)
mmc: sdhci-of-at91: fix wake-up issue when using runtime pm
mmc: sdhci-pci: Do not set DMA mask in enable_dma()
mmc: sdhci-acpi: Remove enable_dma() hook
mmc: sdhci: Set DMA mask when adding host
mmc: block: fix ABI regression of mmc_blk_ioctl
mmc: atmel-mci: Check pdata for NULL before dereferencing it at DMA config
mmc: core: remove redundant memset of sdio_read_cccr
mmc: core: remove redundant memset of mmc_decode_cid
mmc: of_mmc_spi: fix unused warning
mmc: sdhci-of-arasan: add phy support for sdhci-of-arasan
mmc: sdhci-of-arasan: fix missing sdhci_pltfm_free for err handling
mmc: sdhci-of-arasan: remove disable clk_ahb from sdhci_arasan_resume
Documentation: bindings: add description of phy for sdhci-of-arasan
mmc: sdhci: Fix override of timeout clk wrt max_busy_timeout
mmc: mmci: Remove unnecessary header file
mmc: sdhci-acpi: add QCOM controllers
mmc: tegra: implement memcomp pad calibration
mmc: mediatek: Use mmc_regulator_set_vqmmc in start_signal_voltage_switch
mmc: mediatek: Change signal voltage error to dev_dbg()
mmc: sh_mmcif, tmio: Use ARCH_RENESAS
...
Pull drm updates from Dave Airlie:
"This is the main drm pull request for 4.6 kernel.
Overall the coolest thing here for me is the nouveau maxwell signed
firmware support from NVidia, it's taken a long while to extract this
from them.
I also wish the ARM vendors just designed one set of display IP, ARM
display block proliferation is definitely increasing.
Core:
- drm_event cleanups
- Internal API cleanup making mode_fixup optional.
- Apple GMUX vga switcheroo support.
- DP AUX testing interface
Panel:
- Refactoring of DSI core for use over more transports.
New driver:
- ARM hdlcd driver
i915:
- FBC/PSR (framebuffer compression, panel self refresh) enabled by default.
- Ongoing atomic display support work
- Ongoing runtime PM work
- Pixel clock limit checks
- VBT DSI description support
- GEM fixes
- GuC firmware scheduler enhancements
amdkfd:
- Deferred probing fixes to avoid make file or link ordering.
amdgpu/radeon:
- ACP support for i2s audio support.
- Command Submission/GPU scheduler/GPUVM optimisations
- Initial GPU reset support for amdgpu
vmwgfx:
- Support for DX10 gen mipmaps
- Pageflipping and other fixes.
exynos:
- Exynos5420 SoC support for FIMD
- Exynos5422 SoC support for MIPI-DSI
nouveau:
- GM20x secure boot support - adds acceleration for Maxwell GPUs.
- GM200 support
- GM20B clock driver support
- Power sensors work
etnaviv:
- Correctness fixes for GPU cache flushing
- Better support for i.MX6 systems.
imx-drm:
- VBlank IRQ support
- Fence support
- OF endpoint support
msm:
- HDMI support for 8996 (snapdragon 820)
- Adreno 430 support
- Timestamp queries support
virtio-gpu:
- Fixes for Android support.
rockchip:
- Add support for Innosilicion HDMI
rcar-du:
- Support for 4 crtcs
- R8A7795 support
- RCar Gen 3 support
omapdrm:
- HDMI interlace output support
- dma-buf import support
- Refactoring to remove a lot of legacy code.
tilcdc:
- Rewrite of pageflipping code
- dma-buf support
- pinctrl support
vc4:
- HDMI modesetting bug fixes
- Significant 3D performance improvement.
fsl-dcu (FreeScale):
- Lots of fixes
tegra:
- Two small fixes
sti:
- Atomic support for planes
- Improved HDMI support"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (1063 commits)
drm/amdgpu: release_pages requires linux/pagemap.h
drm/sti: restore mode_fixup callback
drm/amdgpu/gfx7: add MTYPE definition
drm/amdgpu: removing BO_VAs shouldn't be interruptible
drm/amd/powerplay: show uvd/vce power gate enablement for tonga.
drm/amd/powerplay: show uvd/vce power gate info for fiji
drm/amdgpu: use sched fence if possible
drm/amdgpu: move ib.fence to job.fence
drm/amdgpu: give a fence param to ib_free
drm/amdgpu: include the right version of gmc header files for iceland
drm/radeon: fix indentation.
drm/amd/powerplay: add uvd/vce dpm enabling flag to fix the performance issue for CZ
drm/amdgpu: switch back to 32bit hw fences v2
drm/amdgpu: remove amdgpu_fence_is_signaled
drm/amdgpu: drop the extra fence range check v2
drm/amdgpu: signal fences directly in amdgpu_fence_process
drm/amdgpu: cleanup amdgpu_fence_wait_empty v2
drm/amdgpu: keep all fences in an RCU protected array v2
drm/amdgpu: add number of hardware submissions to amdgpu_fence_driver_init_ring
drm/amdgpu: RCU protected amd_sched_fence_release
...
- Initial support for ARMv8.1 CPU PMUs
- Support for the CPU PMU in Cavium ThunderX
- CPU PMU support for systems running 32-bit Linux in secure mode
- Support for the system PMU in ARM CCI-550 (Cache Coherent Interconnect)
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Merge tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm[64] perf updates from Will Deacon:
"I have another mixed bag of ARM-related perf patches here.
It's about 25% CPU and 75% interconnect, but with drivers/bus/
languishing without an obvious maintainer or tree, Olof and I agreed
to keep all of these PMU patches together. I suspect a whole load of
code from drivers/bus/arm-* can be moved under drivers/perf/, so
that's on the radar for the future.
Summary:
- Initial support for ARMv8.1 CPU PMUs
- Support for the CPU PMU in Cavium ThunderX
- CPU PMU support for systems running 32-bit Linux in secure mode
- Support for the system PMU in ARM CCI-550 (Cache Coherent Interconnect)"
* tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (26 commits)
drivers/perf: arm_pmu: avoid NULL dereference when not using devicetree
arm64: perf: Extend ARMV8_EVTYPE_MASK to include PMCR.LC
arm-cci: remove unused variable
arm-cci: don't return value from void function
arm-cci: make private functions static
arm-cci: CoreLink CCI-550 PMU driver
arm-cci500: Rearrange PMU driver for code sharing with CCI-550 PMU
arm-cci: CCI-500: Work around PMU counter writes
arm-cci: Provide hook for writing to PMU counters
arm-cci: Add helper to enable PMU without synchornising counters
arm-cci: Add routines to save/restore all counters
arm-cci: Get the status of a counter
arm-cci: write_counter: Remove redundant check
arm-cci: Delay PMU counter writes to pmu::pmu_enable
arm-cci: Refactor CCI PMU enable/disable methods
arm-cci: Group writes to counter
arm-cci: fix handling cpumask_any_but return value
arm-cci: simplify sysfs attr handling
drivers/perf: arm_pmu: implement CPU_PM notifier
arm64: dts: Add Cavium ThunderX specific PMU
...
Pull f2fs updates from Jaegeuk Kim:
"New Features:
- uplift filesystem encryption into fs/crypto/
- give sysfs entries to control memroy consumption
Enhancements:
- aio performance by preallocating blocks in ->write_iter
- use writepages lock for only WB_SYNC_ALL
- avoid redundant inline_data conversion
- enhance forground GC
- use wait_for_stable_page as possible
- speed up SEEK_DATA and fiiemap
Bug Fixes:
- corner case in terms of -ENOSPC for inline_data
- hung task caused by long latency in shrinker
- corruption between atomic write and f2fs_trace_pid
- avoid garbage lengths in dentries
- revoke atomicly written pages if an error occurs
In addition, there are various minor bug fixes and clean-ups"
* tag 'for-f2fs-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (81 commits)
f2fs: submit node page write bios when really required
f2fs: add missing argument to f2fs_setxattr stub
f2fs: fix to avoid unneeded unlock_new_inode
f2fs: clean up opened code with f2fs_update_dentry
f2fs: declare static functions
f2fs: use cryptoapi crc32 functions
f2fs: modify the readahead method in ra_node_page()
f2fs crypto: sync ext4_lookup and ext4_file_open
fs crypto: move per-file encryption from f2fs tree to fs/crypto
f2fs: mutex can't be used by down_write_nest_lock()
f2fs: recovery missing dot dentries in root directory
f2fs: fix to avoid deadlock when merging inline data
f2fs: introduce f2fs_flush_merged_bios for cleanup
f2fs: introduce f2fs_update_data_blkaddr for cleanup
f2fs crypto: fix incorrect positioning for GCing encrypted data page
f2fs: fix incorrect upper bound when iterating inode mapping tree
f2fs: avoid hungtask problem caused by losing wake_up
f2fs: trace old block address for CoWed page
f2fs: try to flush inode after merging inline data
f2fs: show more info about superblock recovery
...
Pull cgroup namespace support from Tejun Heo:
"These are changes to implement namespace support for cgroup which has
been pending for quite some time now. It is very straight-forward and
only affects what part of cgroup hierarchies are visible.
After unsharing, mounting a cgroup fs will be scoped to the cgroups
the task belonged to at the time of unsharing and the cgroup paths
exposed to userland would be adjusted accordingly"
* 'for-4.6-ns' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: fix and restructure error handling in copy_cgroup_ns()
cgroup: fix alloc_cgroup_ns() error handling in copy_cgroup_ns()
Add FS_USERNS_FLAG to cgroup fs
cgroup: Add documentation for cgroup namespaces
cgroup: mount cgroupns-root when inside non-init cgroupns
kernfs: define kernfs_node_dentry
cgroup: cgroup namespace setns support
cgroup: introduce cgroup namespaces
sched: new clone flag CLONE_NEWCGROUP for cgroup namespace
kernfs: Add API to generate relative kernfs path
Message Manager is a hardware block used to communicate with various
processor systems within certain Texas Instrument's Keystone
generation SoCs.
This hardware engine is used to transfer messages from various compute
entities(or processors) within the SoC. It is designed to be self
contained without needing software initialization for operation.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Pull x86 protection key support from Ingo Molnar:
"This tree adds support for a new memory protection hardware feature
that is available in upcoming Intel CPUs: 'protection keys' (pkeys).
There's a background article at LWN.net:
https://lwn.net/Articles/643797/
The gist is that protection keys allow the encoding of
user-controllable permission masks in the pte. So instead of having a
fixed protection mask in the pte (which needs a system call to change
and works on a per page basis), the user can map a (handful of)
protection mask variants and can change the masks runtime relatively
cheaply, without having to change every single page in the affected
virtual memory range.
This allows the dynamic switching of the protection bits of large
amounts of virtual memory, via user-space instructions. It also
allows more precise control of MMU permission bits: for example the
executable bit is separate from the read bit (see more about that
below).
This tree adds the MM infrastructure and low level x86 glue needed for
that, plus it adds a high level API to make use of protection keys -
if a user-space application calls:
mmap(..., PROT_EXEC);
or
mprotect(ptr, sz, PROT_EXEC);
(note PROT_EXEC-only, without PROT_READ/WRITE), the kernel will notice
this special case, and will set a special protection key on this
memory range. It also sets the appropriate bits in the Protection
Keys User Rights (PKRU) register so that the memory becomes unreadable
and unwritable.
So using protection keys the kernel is able to implement 'true'
PROT_EXEC on x86 CPUs: without protection keys PROT_EXEC implies
PROT_READ as well. Unreadable executable mappings have security
advantages: they cannot be read via information leaks to figure out
ASLR details, nor can they be scanned for ROP gadgets - and they
cannot be used by exploits for data purposes either.
We know about no user-space code that relies on pure PROT_EXEC
mappings today, but binary loaders could start making use of this new
feature to map binaries and libraries in a more secure fashion.
There is other pending pkeys work that offers more high level system
call APIs to manage protection keys - but those are not part of this
pull request.
Right now there's a Kconfig that controls this feature
(CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) that is default enabled
(like most x86 CPU feature enablement code that has no runtime
overhead), but it's not user-configurable at the moment. If there's
any serious problem with this then we can make it configurable and/or
flip the default"
* 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
x86/mm/pkeys: Fix mismerge of protection keys CPUID bits
mm/pkeys: Fix siginfo ABI breakage caused by new u64 field
x86/mm/pkeys: Fix access_error() denial of writes to write-only VMA
mm/core, x86/mm/pkeys: Add execute-only protection keys support
x86/mm/pkeys: Create an x86 arch_calc_vm_prot_bits() for VMA flags
x86/mm/pkeys: Allow kernel to modify user pkey rights register
x86/fpu: Allow setting of XSAVE state
x86/mm: Factor out LDT init from context init
mm/core, x86/mm/pkeys: Add arch_validate_pkey()
mm/core, arch, powerpc: Pass a protection key in to calc_vm_flag_bits()
x86/mm/pkeys: Actually enable Memory Protection Keys in the CPU
x86/mm/pkeys: Add Kconfig prompt to existing config option
x86/mm/pkeys: Dump pkey from VMA in /proc/pid/smaps
x86/mm/pkeys: Dump PKRU with other kernel registers
mm/core, x86/mm/pkeys: Differentiate instruction fetches
x86/mm/pkeys: Optimize fault handling in access_error()
mm/core: Do not enforce PKEY permissions on remote mm access
um, pkeys: Add UML arch_*_access_permitted() methods
mm/gup, x86/mm/pkeys: Check VMAs and PTEs for protection keys
x86/mm/gup: Simplify get_user_pages() PTE bit handling
...
Pull EFI updates from Ingo Molnar:
"The main changes are:
- Use separate EFI page tables when executing EFI firmware code.
This isolates the EFI context from the rest of the kernel, which
has security and general robustness advantages. (Matt Fleming)
- Run regular UEFI firmware with interrupts enabled. This is already
the status quo under other OSs. (Ard Biesheuvel)
- Various x86 EFI enhancements, such as the use of non-executable
attributes for EFI memory mappings. (Sai Praneeth Prakhya)
- Various arm64 UEFI enhancements. (Ard Biesheuvel)
- ... various fixes and cleanups.
The separate EFI page tables feature got delayed twice already,
because it's an intrusive change and we didn't feel confident about
it - third time's the charm we hope!"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
x86/mm/pat: Fix boot crash when 1GB pages are not supported by the CPU
x86/efi: Only map kernel text for EFI mixed mode
x86/efi: Map EFI_MEMORY_{XP,RO} memory region bits to EFI page tables
x86/mm/pat: Don't implicitly allow _PAGE_RW in kernel_map_pages_in_pgd()
efi/arm*: Perform hardware compatibility check
efi/arm64: Check for h/w support before booting a >4 KB granular kernel
efi/arm: Check for LPAE support before booting a LPAE kernel
efi/arm-init: Use read-only early mappings
efi/efistub: Prevent __init annotations from being used
arm64/vmlinux.lds.S: Handle .init.rodata.xxx and .init.bss sections
efi/arm64: Drop __init annotation from handle_kernel_image()
x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings
efi/runtime-wrappers: Run UEFI Runtime Services with interrupts enabled
efi: Reformat GUID tables to follow the format in UEFI spec
efi: Add Persistent Memory type name
efi: Add NV memory attribute
x86/efi: Show actual ending addresses in efi_print_memmap
x86/efi/bgrt: Don't ignore the BGRT if the 'valid' bit is 0
efivars: Use to_efivar_entry
efi: Runtime-wrapper: Get rid of the rtc_lock spinlock
...
Driver updates for ARM SoCs, these contain various things that touch
the drivers/ directory but got merged through arm-soc for practical
reasons:
- Rockchip rk3368 gains power domain support
- Small updates for the ARM spmi driver
- The Atmel PMC driver saw a larger rework, touching both
arch/arm/mach-at91 and drivers/clk/at91
- All reset controller driver changes alway get merged through
arm-soc, though this time the largest change is the addition
of a MIPS pistachio reset driver
- One bugfix for the NXP (formerly Freescale) i.MX weim bus driver
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"Driver updates for ARM SoCs, these contain various things that touch
the drivers/ directory but got merged through arm-soc for practical
reasons:
- Rockchip rk3368 gains power domain support
- Small updates for the ARM spmi driver
- The Atmel PMC driver saw a larger rework, touching both
arch/arm/mach-at91 and drivers/clk/at91
- All reset controller driver changes alway get merged through
arm-soc, though this time the largest change is the addition of a
MIPS pistachio reset driver
- One bugfix for the NXP (formerly Freescale) i.MX weim bus driver"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
bus: imx-weim: Take the 'status' property value into account
clk: at91: remove useless includes
clk: at91: pmc: remove useless capacities handling
clk: at91: pmc: drop at91_pmc_base
usb: gadget: atmel: access the PMC using regmap
ARM: at91: remove useless includes and function prototypes
ARM: at91: pm: move idle functions to pm.c
ARM: at91: pm: find and remap the pmc
ARM: at91: pm: simply call at91_pm_init
clk: at91: pmc: move pmc structures to C file
clk: at91: pmc: merge at91_pmc_init in atmel_pmc_probe
clk: at91: remove IRQ handling and use polling
clk: at91: make use of syscon/regmap internally
clk: at91: make use of syscon to share PMC registers in several drivers
hwmon: (scpi) add energy meter support
firmware: arm_scpi: add support for 64-bit sensor values
firmware: arm_scpi: decrease Tx timeout to 20ms
firmware: arm_scpi: fix send_message and sensor_get_value for big-endian
reset: sti: Make reset_control_ops const
reset: zynq: Make reset_control_ops const
...
The arm64 device tree changes make up an increasing portion of
the overall changes, so they are kept separate from the 32-bit
devicetree changes and from the other arm64 updates.
Newly added SoCs and boards are:
- 96Boards Husky board
- AMD Overdrive board
- Amlogic S905 SoC and related Tronsmart boxes
- Annapurna Labs Alpine family and development board
- Broadcom Vulcan servers
- Broadcom Northstar 2 SoC
- Marvell Armada 3700 family and development board
- Qualcomm MSM8996 SoC
Additional devices are enabled for existing platforms from
Applied Micro, Hisilicon, Mediatek, Qualcomm, and Renesas and
there are a couple of other updates for Rockchip, Xilinx and
NXP/Freescale.
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Merge tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM 64-bit DT updates from Arnd Bergmann:
"The arm64 device tree changes make up an increasing portion of the
overall changes, so they are kept separate from the 32-bit devicetree
changes and from the other arm64 updates.
Newly added SoCs and boards are:
- 96Boards Husky board
- AMD Overdrive board
- Amlogic S905 SoC and related Tronsmart boxes
- Annapurna Labs Alpine family and development board
- Broadcom Vulcan servers
- Broadcom Northstar 2 SoC
- Marvell Armada 3700 family and development board
- Qualcomm MSM8996 SoC
Additional devices are enabled for existing platforms from Applied
Micro, Hisilicon, Mediatek, Qualcomm, and Renesas and there are a
couple of other updates for Rockchip, Xilinx and NXP/Freescale"
* tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (102 commits)
ARM64: dts: amlogic: Add Tronsmart Vega S95 configs
Documentation: devicetree: amlogic: Document Tronsmart Vega S95 boards
ARM64: dts: Prepare configs for Amlogic Meson GXBaby
Documentation: devicetree: amlogic: Document Meson GXBaby
devicetree: bindings: Add vendor prefix for Tronsmart
arm64: dts: qcom: Fix MPP's function used for LED control
arm64: dts: alpine: add the MSIX node in the Alpine v2 dtsi
arm64: dts: add the Alpine v2 EVP
arm64: dts: marvell: re-order Device Tree nodes for Armada AP806
arm64: dts: marvell: update Armada AP806 clock description
arm64: dts: marvell: add Device Tree files for Armada 7K/8K
arm64: dts: apm: Add DT node for X-Gene v2 SLIMpro Mailbox I2C Driver
arm64: dts: apm: Mailbox device tree node for APM X-Gene v2 platform.
arm64: dts: apm: Add DT node for X-Gene v1 SLIMpro Mailbox I2C Driver
arm64: dts: apm: mailbox device tree node for APM X-Gene platform.
arm64: dts: apm: Update GPIO to control power-off on X-Gene v2 platforms
arm64: dts: apm: Update GPIO standby controller DT node for X-Gene v2 platforms
arm64: dts: apm: Update GPIO to control power-off on X-Gene v1 platforms
arm64: dts: salvator-x: enable USB 2.0 Host of channel 1 and 2
arm64: dts: salvator-x: enable usb2_phy of channel 1 and 2
...
These are all the updates to device tree files for 32-bit platforms,
plus a couple of related 64-bit updates:
New SoC support:
- Allwinner A83T
- Axis Artpec-6 SoC
- Mediatek MT7623 SoC
- TI Keystone K2G SoC
- ST Microelectronics stm32f469
New board or machine support:
- ARM Juno R2
- Buffalo Linkstation LS-QVL and LS-GL
- Cubietruck plus
- D-Link DIR-885L
- DT support for ARM RealView PB1176 and PB11MPCore
- Google Nexus 7
- Homlet v2
- Itead Ibox
- Lamobo R1
- LG Optimus Black
- Logicpd dm3730
- Raspberry Pi Model A
Other changes include
- Lots of updates for Qualcomm APQ8064, MSM8974 and others
- Improved support for Nokia N900 and other OMAP machines
- Common clk support for lpc32xx
- HDLCD display on ARM
- Improved stm32f429 support
- Improved Renesas device support, r8a779x and others
- Lots of Rockchip updates
- Samsung cleanups
- ADC support for Atmel SAMA5D2
- BCM2835 (Raspberry Pi) improvements
- Broadcom Northstar Plus enhancements
- OMAP GPMC rework
- Several improvements for Atmel SAMA5D2 / Xplained
- Global change to remove inofficial "arm,amba-bus" compatible string
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM DT updates from Arnd Bergmann:
"These are all the updates to device tree files for 32-bit platforms,
plus a couple of related 64-bit updates:
New SoC support:
- Allwinner A83T
- Axis Artpec-6 SoC
- Mediatek MT7623 SoC
- TI Keystone K2G SoC
- ST Microelectronics stm32f469
New board or machine support:
- ARM Juno R2
- Buffalo Linkstation LS-QVL and LS-GL
- Cubietruck plus
- D-Link DIR-885L
- DT support for ARM RealView PB1176 and PB11MPCore
- Google Nexus 7
- Homlet v2
- Itead Ibox
- Lamobo R1
- LG Optimus Black
- Logicpd dm3730
- Raspberry Pi Model A
Other changes include
- Lots of updates for Qualcomm APQ8064, MSM8974 and others
- Improved support for Nokia N900 and other OMAP machines
- Common clk support for lpc32xx
- HDLCD display on ARM
- Improved stm32f429 support
- Improved Renesas device support, r8a779x and others
- Lots of Rockchip updates
- Samsung cleanups
- ADC support for Atmel SAMA5D2
- BCM2835 (Raspberry Pi) improvements
- Broadcom Northstar Plus enhancements
- OMAP GPMC rework
- Several improvements for Atmel SAMA5D2 / Xplained
- Global change to remove inofficial "arm,amba-bus" compatible
string"
* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (350 commits)
ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus"
ARM: dts: artpec: dual-license on artpec6.dtsi
ARM: dts: ux500: add synaptics RMI4 for Ux500 TVK DT
arm64: dts: juno/vexpress: fix node name unit-address presence warnings
arm64: dts: foundation-v8: add SBSA Generic Watchdog device node
ARM: dts: at91: sama5d2 Xplained: add leds node
ARM: dts: at91: sama5d2 Xplained: add user push button
ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host
ARM: dts: stm32f429: Enable Ethernet on Eval board
ARM: dts: omap3-sniper: TWL4030 keypad support
Revert "ARM: dts: DRA7: Add dt nodes for PWMSS"
ARM: dts: dm814x: dra62x: Disable wait pin monitoring for NAND
ARM: dts: dm814x: dra62x: Fix NAND device nodes
ARM: dts: stm32f429: Add Ethernet support
ARM: dts: stm32f429: Add system config bank node
ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes
ARM: dts: at91: sama5d2: add dma properties to UART nodes
ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
ARM: dts: exynos: Don't overheat the Odroid XU3-Lite on high load
ARM: dts: exynos: Add cooling levels for Exynos5422/5800 CPUs
...
Here's our branch of ARM64 contents for this merge window, now
containing all ARM64 changes other than device tree files.
- Various new platforms get added
- Allwinner A64 SoC
- Annapurna Labs Alpine SoCs
- Broadcom Vulcan
- Marvell Armada 3700 SoCs
- Amlogic S905
- Various defconfig changes to enable platform specific drivers
This branch includes the clk git tree to resolve a build-time
dependency.
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Merge tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC 64-bit changes from Arnd Bergmann:
"Here's our branch of ARM64 contents for this merge window, now
containing all ARM64 changes other than device tree files.
- Various new platforms get added:
* Allwinner A64 SoC
* Annapurna Labs Alpine SoCs
* Broadcom Vulcan
* Marvell Armada 3700 SoCs
* Amlogic S905
- Various defconfig changes to enable platform specific drivers
This branch includes the clk git tree to resolve a build-time
dependency"
* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
arm64: defconfig: Increase MMC_BLOCK_MINORS to 16
arm64: defconfig: Add Qualcomm sdhci and restart functionality
ARM64: Enable Amlogic Meson GXBaby platform
arm64: defconfig: Enable Samsung MFD and related configs
arm64: alpine: select the Alpine MSI controller driver
arm64: defconfig: enable the Alpine family
arm64: add Alpine SoC family
arm64: defconfig: Enable exynos thermal config
arm64: add defconfig options for Allwinner SoCs
arm64: defconfig: Enable DesignWare APB GPIO controller
arm64: defconfig: Add Renesas R-Car Gen3 USB 2.0 phy driver support
arm64: EXYNOS: Consolidate ARCH_EXYNOS7 symbol into ARCH_EXYNOS
clk: samsung: Don't build ARMv8 clock drivers on ARMv7
MAINTAINERS: Add entry for Broadcom Vulcan SoC
arm64: cputype info for Broadcom Vulcan
arm64: Broadcom Vulcan support
arm64: defconfig: Add Broadcom Vulcan to defconfig
arm64: update ARCH_MVEBU for Marvell Armada 7K/8K support
Documentation: arm: add Marvell Armada 7K and 8K families
Documentation: arm: add link to Armada 38x Functional Spec
...
Newly added support for additional SoCs:
- Axis Artpec-6 SoC family
- Allwinner A83T SoC
- Mediatek MT7623
- NXP i.MX6QP SoC
- ST Microelectronics stm32f469 microcontroller
New features:
- SMP support for Mediatek mt2701
- Big-endian support for NXP i.MX
- DaVinci now uses the new DMA engine dma_slave_map
- OMAP now uses the new DMA engine dma_slave_map
- earlyprintk support for palmchip uart on mach-tango
- delay timer support for orion
Other:
- Exynos PMU driver moved out to drivers/soc/
- Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP, uniphier
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann:
"Newly added support for additional SoCs:
- Axis Artpec-6 SoC family
- Allwinner A83T SoC
- Mediatek MT7623
- NXP i.MX6QP SoC
- ST Microelectronics stm32f469 microcontroller
New features:
- SMP support for Mediatek mt2701
- Big-endian support for NXP i.MX
- DaVinci now uses the new DMA engine dma_slave_map
- OMAP now uses the new DMA engine dma_slave_map
- earlyprintk support for palmchip uart on mach-tango
- delay timer support for orion
Other:
- Exynos PMU driver moved out to drivers/soc/
- Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP,
uniphier"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
ARM: uniphier: rework SMP code to support new System Bus binding
ARM: uniphier: add missing of_node_put()
ARM: at91: avoid defining CONFIG_* symbols in source code
ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
ARM: imx: Make reset_control_ops const
ARM: imx: Do L2 errata only if the L2 cache isn't enabled
ARM: imx: select ARM_CPU_SUSPEND only for imx6
dmaengine: pxa_dma: fix the maximum requestor line
ARM: alpine: select the Alpine MSI controller driver
ARM: pxa: add the number of DMA requestor lines
dmaengine: mmp-pdma: add number of requestors
dma: mmp_pdma: Add the #dma-requests DT property documentation
ARM: OMAP2+: Add rtc hwmod configuration for ti81xx
ARM: s3c24xx: Avoid warning for inb/outb
ARM: zynq: Move early printk virtual address to vmalloc area
ARM: DRA7: hwmod: Add custom reset handler for PCIeSS
ARM: SAMSUNG: Remove unused register offset definition
ARM: EXYNOS: Cleanup header files inclusion
drivers: soc: samsung: Enable COMPILE_TEST
MAINTAINERS: Add maintainers entry for drivers/soc/samsung
...
Pull watchdog updates from Wim Van Sebroeck:
- new drivers for: NI 903x/913x watchdog driver, WinSystems EBC-C384
watchdog timer and ARM SBSA watchdog driver
- Support for NCT6102D devices
- Improvements of the generic watchdog framework (improve restart
handler, make set_timeout optional, introduce infrastructure
triggered keepalives, ...
- improvements on the pnx4008 watchdog driver
- several smaller fixes and improvements
* git://www.linux-watchdog.org/linux-watchdog: (28 commits)
watchdog: Ensure that wdd is not dereferenced if NULL
watchdog: imx2: Convert to use infrastructure triggered keepalives
watchdog: dw_wdt: Convert to use watchdog infrastructure
watchdog: Add support for minimum time between heartbeats
watchdog: Make stop function optional
watchdog: Introduce WDOG_HW_RUNNING flag
watchdog: Introduce hardware maximum heartbeat in watchdog core
watchdog: Make set_timeout function optional
arm: lpc32xx: remove restart handler
arm: lpc32xx: phy3250 remove restart hook
watchdog: pnx4008: restart: support "cmd" from userspace
watchdog: pnx4008: add support for soft reset
watchdog: pnx4008: add restart handler
watchdog: pnx4008: update logging during power-on
watchdog: tangox_wdt: test clock rate to avoid division by 0
watchdog: atlas7_wdt: test clock rate to avoid division by 0
watchdog: s3c2410_wdt: Add max and min timeout values
Watchdog: introduce ARM SBSA watchdog driver
Documentation: add sbsa-gwdt driver documentation
watchdog: Add watchdog timer support for the WinSystems EBC-C384
...
Pull ARM updates from Russell King:
"Another mixture of changes this time around:
- Split XIP linker file from main linker file to make it more
maintainable, and various XIP fixes, and clean up a resulting
macro.
- Decompressor cleanups from Masahiro Yamada
- Avoid printing an error for a missing L2 cache
- Remove some duplicated symbols in System.map, and move
vectors/stubs back into kernel VMA
- Various low priority fixes from Arnd
- Updates to allow bus match functions to return negative errno
values, touching some drivers and the driver core. Greg has acked
these changes.
- Virtualisation platform udpates form Jean-Philippe Brucker.
- Security enhancements from Kees Cook
- Rework some Kconfig dependencies and move PSCI idle management code
out of arch/arm into drivers/firmware/psci.c
- ARM DMA mapping updates, touching media, acked by Mauro.
- Fix places in ARM code which should be using virt_to_idmap() so
that Keystone2 can work.
- Fix Marvell Tauros2 to work again with non-DT boots.
- Provide a delay timer for ARM Orion platforms"
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (45 commits)
ARM: 8546/1: dma-mapping: refactor to fix coherent+cma+gfp=0
ARM: 8547/1: dma-mapping: store buffer information
ARM: 8543/1: decompressor: rename suffix_y to compress-y
ARM: 8542/1: decompressor: merge piggy.*.S and simplify Makefile
ARM: 8541/1: decompressor: drop redundant FORCE in Makefile
ARM: 8540/1: decompressor: use clean-files instead of extra-y to clean files
ARM: 8539/1: decompressor: drop more unneeded assignments to "targets"
ARM: 8538/1: decompressor: drop unneeded assignments to "targets"
ARM: 8532/1: uncompress: mark putc as inline
ARM: 8531/1: turn init_new_context into an inline function
ARM: 8530/1: remove VIRT_TO_BUS
ARM: 8537/1: drop unused DEBUG_RODATA from XIP_KERNEL
ARM: 8536/1: mm: hide __start_rodata_section_aligned for non-debug builds
ARM: 8535/1: mm: DEBUG_RODATA makes no sense with XIP_KERNEL
ARM: 8534/1: virt: fix hyp-stub build for pre-ARMv7 CPUs
ARM: make the physical-relative calculation more obvious
ARM: 8512/1: proc-v7.S: Adjust stack address when XIP_KERNEL
ARM: 8411/1: Add default SPARSEMEM settings
ARM: 8503/1: clk_register_clkdev: remove format string interface
ARM: 8529/1: remove 'i' and 'zi' targets
...
crash that likely affects all sh models with MMU, and introduction of
a framework for boards described by device tree, which sets the stage
for future J2 support.
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Merge tag 'tag-sh-for-4.6' of git://git.libc.org/linux-sh
Pull arch/sh updates from Rich Felker:
"This includes minor cleanups, a fix for a crash that likely affects
all sh models with MMU, and introduction of a framework for boards
described by device tree, which sets the stage for future J2 support"
* tag 'tag-sh-for-4.6' of git://git.libc.org/linux-sh:
sched/preempt, sh: kmap_coherent relies on disabled preemption
sh: add SMP method selection to device tree pseudo-board
sh: add device tree support and generic board using device tree
sh: remove arch-specific localtimer and use generic one
sh: make MMU-specific SMP code conditional on CONFIG_MMU
sh: provide unified syscall trap compatible with all SH models
sh: New gcc support
sh: Disable trace for kernel uncompressing.
sh: Use generic clkdev.h header
Highlights:
- Restructure Linux PTE on Book3S/64 to Radix format from Paul Mackerras
- Book3s 64 MMU cleanup in preparation for Radix MMU from Aneesh Kumar K.V
- Add POWER9 cputable entry from Michael Neuling
- FPU/Altivec/VSX save/restore optimisations from Cyril Bur
- Add support for new ftrace ABI on ppc64le from Torsten Duwe
Various cleanups & minor fixes from:
- Adam Buchbinder, Andrew Donnellan, Balbir Singh, Christophe Leroy, Cyril
Bur, Luis Henriques, Madhavan Srinivasan, Pan Xinhui, Russell Currey,
Sukadev Bhattiprolu, Suraj Jitindar Singh.
General:
- atomics: Allow architectures to define their own __atomic_op_* helpers from
Boqun Feng
- Implement atomic{, 64}_*_return_* variants and acquire/release/relaxed
variants for (cmp)xchg from Boqun Feng
- Add powernv_defconfig from Jeremy Kerr
- Fix BUG_ON() reporting in real mode from Balbir Singh
- Add xmon command to dump OPAL msglog from Andrew Donnellan
- Add xmon command to dump process/task similar to ps(1) from Douglas Miller
- Clean up memory hotplug failure paths from David Gibson
pci/eeh:
- Redesign SR-IOV on PowerNV to give absolute isolation between VFs from Wei
Yang.
- EEH Support for SRIOV VFs from Wei Yang and Gavin Shan.
- PCI/IOV: Rename and export virtfn_{add, remove} from Wei Yang
- PCI: Add pcibios_bus_add_device() weak function from Wei Yang
- MAINTAINERS: Update EEH details and maintainership from Russell Currey
cxl:
- Support added to the CXL driver for running on both bare-metal and
hypervisor systems, from Christophe Lombard and Frederic Barrat.
- Ignore probes for virtual afu pci devices from Vaibhav Jain
perf:
- Export Power8 generic and cache events to sysfs from Sukadev Bhattiprolu
- hv-24x7: Fix usage with chip events, display change in counter values,
display domain indices in sysfs, eliminate domain suffix in event names,
from Sukadev Bhattiprolu
Freescale:
- Updates from Scott: "Highlights include 8xx optimizations, 32-bit checksum
optimizations, 86xx consolidation, e5500/e6500 cpu hotplug, more fman and
other dt bits, and minor fixes/cleanup."
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Merge tag 'powerpc-4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"This was delayed a day or two by some build-breakage on old toolchains
which we've now fixed.
There's two PCI commits both acked by Bjorn.
There's one commit to mm/hugepage.c which is (co)authored by Kirill.
Highlights:
- Restructure Linux PTE on Book3S/64 to Radix format from Paul
Mackerras
- Book3s 64 MMU cleanup in preparation for Radix MMU from Aneesh
Kumar K.V
- Add POWER9 cputable entry from Michael Neuling
- FPU/Altivec/VSX save/restore optimisations from Cyril Bur
- Add support for new ftrace ABI on ppc64le from Torsten Duwe
Various cleanups & minor fixes from:
- Adam Buchbinder, Andrew Donnellan, Balbir Singh, Christophe Leroy,
Cyril Bur, Luis Henriques, Madhavan Srinivasan, Pan Xinhui, Russell
Currey, Sukadev Bhattiprolu, Suraj Jitindar Singh.
General:
- atomics: Allow architectures to define their own __atomic_op_*
helpers from Boqun Feng
- Implement atomic{, 64}_*_return_* variants and acquire/release/
relaxed variants for (cmp)xchg from Boqun Feng
- Add powernv_defconfig from Jeremy Kerr
- Fix BUG_ON() reporting in real mode from Balbir Singh
- Add xmon command to dump OPAL msglog from Andrew Donnellan
- Add xmon command to dump process/task similar to ps(1) from Douglas
Miller
- Clean up memory hotplug failure paths from David Gibson
pci/eeh:
- Redesign SR-IOV on PowerNV to give absolute isolation between VFs
from Wei Yang.
- EEH Support for SRIOV VFs from Wei Yang and Gavin Shan.
- PCI/IOV: Rename and export virtfn_{add, remove} from Wei Yang
- PCI: Add pcibios_bus_add_device() weak function from Wei Yang
- MAINTAINERS: Update EEH details and maintainership from Russell
Currey
cxl:
- Support added to the CXL driver for running on both bare-metal and
hypervisor systems, from Christophe Lombard and Frederic Barrat.
- Ignore probes for virtual afu pci devices from Vaibhav Jain
perf:
- Export Power8 generic and cache events to sysfs from Sukadev
Bhattiprolu
- hv-24x7: Fix usage with chip events, display change in counter
values, display domain indices in sysfs, eliminate domain suffix in
event names, from Sukadev Bhattiprolu
Freescale:
- Updates from Scott: "Highlights include 8xx optimizations, 32-bit
checksum optimizations, 86xx consolidation, e5500/e6500 cpu
hotplug, more fman and other dt bits, and minor fixes/cleanup"
* tag 'powerpc-4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (179 commits)
powerpc: Fix unrecoverable SLB miss during restore_math()
powerpc/8xx: Fix do_mtspr_cpu6() build on older compilers
powerpc/rcpm: Fix build break when SMP=n
powerpc/book3e-64: Use hardcoded mttmr opcode
powerpc/fsl/dts: Add "jedec,spi-nor" flash compatible
powerpc/T104xRDB: add tdm riser card node to device tree
powerpc32: PAGE_EXEC required for inittext
powerpc/mpc85xx: Add pcsphy nodes to FManV3 device tree
powerpc/mpc85xx: Add MDIO bus muxing support to the board device tree(s)
powerpc/86xx: Introduce and use common dtsi
powerpc/86xx: Update device tree
powerpc/86xx: Move dts files to fsl directory
powerpc/86xx: Switch to kconfig fragments approach
powerpc/86xx: Update defconfigs
powerpc/86xx: Consolidate common platform code
powerpc32: Remove one insn in mulhdu
powerpc32: small optimisation in flush_icache_range()
powerpc: Simplify test in __dma_sync()
powerpc32: move xxxxx_dcache_range() functions inline
powerpc32: Remove clear_pages() and define clear_page() inline
...
- New tool dtx_diff to diff DT files.
- Sync kernel's dtc/libfdt to current dtc repo master.
- Fix for reserved memory regions located in highmem.
- Document standard unit suffixes for DT properties.
- Various DT binding doc updates.
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Merge tag 'devicetree-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
- new tool 'dtx_diff' to diff DT files
- sync kernel's dtc/libfdt to current dtc repo master
- fix for reserved memory regions located in highmem
- document standard unit suffixes for DT properties
- various DT binding doc updates
* tag 'devicetree-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: Add vendor prefix for eGalax_eMPIA Technology Inc
Input: ads7846: Add description how to use internal reference (ADS7846)
ARM: realview: add EB syscon variants to bindings
devicetree: bindings: ARM: Use "uV" for micro-volt
serial: fsl-imx-uart: Fix typo in fsl,dte-mode description
of: add 'const' for of_property_*_string*() parameter '*np'
of/unittest: fix infinite loop in of_unittest_destroy_tracked_overlays()
of: alloc anywhere from memblock if range not specified
kbuild: Allow using host dtc instead of kernel's copy
of: resolver: Add missing of_node_get and of_node_put
of: Add United Radiant Technology Corporation vendor prefix
dt/bindings: add documentation on standard property unit suffixes
scripts/dtc: Update to upstream commit b06e55c88b9b
ARM: boot: Add an implementation of strnlen for libfdt
scripts/dtc: dtx_diff - add info to error message
dtc: create tool to diff device trees
Pull networking updates from David Miller:
"Highlights:
1) Support more Realtek wireless chips, from Jes Sorenson.
2) New BPF types for per-cpu hash and arrap maps, from Alexei
Starovoitov.
3) Make several TCP sysctls per-namespace, from Nikolay Borisov.
4) Allow the use of SO_REUSEPORT in order to do per-thread processing
of incoming TCP/UDP connections. The muxing can be done using a
BPF program which hashes the incoming packet. From Craig Gallek.
5) Add a multiplexer for TCP streams, to provide a messaged based
interface. BPF programs can be used to determine the message
boundaries. From Tom Herbert.
6) Add 802.1AE MACSEC support, from Sabrina Dubroca.
7) Avoid factorial complexity when taking down an inetdev interface
with lots of configured addresses. We were doing things like
traversing the entire address less for each address removed, and
flushing the entire netfilter conntrack table for every address as
well.
8) Add and use SKB bulk free infrastructure, from Jesper Brouer.
9) Allow offloading u32 classifiers to hardware, and implement for
ixgbe, from John Fastabend.
10) Allow configuring IRQ coalescing parameters on a per-queue basis,
from Kan Liang.
11) Extend ethtool so that larger link mode masks can be supported.
From David Decotigny.
12) Introduce devlink, which can be used to configure port link types
(ethernet vs Infiniband, etc.), port splitting, and switch device
level attributes as a whole. From Jiri Pirko.
13) Hardware offload support for flower classifiers, from Amir Vadai.
14) Add "Local Checksum Offload". Basically, for a tunneled packet
the checksum of the outer header is 'constant' (because with the
checksum field filled into the inner protocol header, the payload
of the outer frame checksums to 'zero'), and we can take advantage
of that in various ways. From Edward Cree"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits)
bonding: fix bond_get_stats()
net: bcmgenet: fix dma api length mismatch
net/mlx4_core: Fix backward compatibility on VFs
phy: mdio-thunder: Fix some Kconfig typos
lan78xx: add ndo_get_stats64
lan78xx: handle statistics counter rollover
RDS: TCP: Remove unused constant
RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket
net: smc911x: convert pxa dma to dmaengine
team: remove duplicate set of flag IFF_MULTICAST
bonding: remove duplicate set of flag IFF_MULTICAST
net: fix a comment typo
ethernet: micrel: fix some error codes
ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it
bpf, dst: add and use dst_tclassid helper
bpf: make skb->tc_classid also readable
net: mvneta: bm: clarify dependencies
cls_bpf: reset class and reuse major in da
ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c
ldmvsw: Add ldmvsw.c driver code
...
Pull cgroup updates from Tejun Heo:
"cgroup changes for v4.6-rc1. No userland visible behavior changes in
this pull request. I'll send out a separate pull request for the
addition of cgroup namespace support.
- The biggest change is the revamping of cgroup core task migration
and controller handling logic. There are quite a few places where
controllers and tasks are manipulated. Previously, many of those
places implemented custom operations for each specific use case
assuming specific starting conditions. While this worked, it makes
the code fragile and difficult to follow.
The bulk of this pull request restructures these operations so that
most related operations are performed through common helpers which
implement recursive (subtrees are always processed consistently)
and idempotent (they make cgroup hierarchy converge to the target
state rather than performing operations assuming specific starting
conditions). This makes the code a lot easier to understand,
verify and extend.
- Implicit controller support is added. This is primarily for using
perf_event on the v2 hierarchy so that perf can match cgroup v2
path without requiring the user to do anything special. The kernel
portion of perf_event changes is acked but userland changes are
still pending review.
- cgroup_no_v1= boot parameter added to ease testing cgroup v2 in
certain environments.
- There is a regression introduced during v4.4 devel cycle where
attempts to migrate zombie tasks can mess up internal object
management. This was fixed earlier this week and included in this
pull request w/ stable cc'd.
- Misc non-critical fixes and improvements"
* 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (44 commits)
cgroup: avoid false positive gcc-6 warning
cgroup: ignore css_sets associated with dead cgroups during migration
Documentation: cgroup v2: Trivial heading correction.
cgroup: implement cgroup_subsys->implicit_on_dfl
cgroup: use css_set->mg_dst_cgrp for the migration target cgroup
cgroup: make cgroup[_taskset]_migrate() take cgroup_root instead of cgroup
cgroup: move migration destination verification out of cgroup_migrate_prepare_dst()
cgroup: fix incorrect destination cgroup in cgroup_update_dfl_csses()
cgroup: Trivial correction to reflect controller.
cgroup: remove stale item in cgroup-v1 document INDEX file.
cgroup: update css iteration in cgroup_update_dfl_csses()
cgroup: allocate 2x cgrp_cset_links when setting up a new root
cgroup: make cgroup_calc_subtree_ss_mask() take @this_ss_mask
cgroup: reimplement rebind_subsystems() using cgroup_apply_control() and friends
cgroup: use cgroup_apply_enable_control() in cgroup creation path
cgroup: combine cgroup_mutex locking and offline css draining
cgroup: factor out cgroup_{apply|finalize}_control() from cgroup_subtree_control_write()
cgroup: introduce cgroup_{save|propagate|restore}_control()
cgroup: make cgroup_drain_offline() and cgroup_apply_control_{disable|enable}() recursive
cgroup: factor out cgroup_apply_control_enable() from cgroup_subtree_control_write()
...
Pull libata updates from Tejun Heo:
- ahci grew runtime power management support so that the controller can
be turned off if no devices are attached.
- sata_via isn't dead yet. It got hotplug support and more refined
workaround for certain WD drives.
- Misc cleanups. There's a merge from for-4.5-fixes to avoid confusing
conflicts in ahci PCI ID table.
* 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: ahci_xgene: dereferencing uninitialized pointer in probe
AHCI: Remove obsolete Intel Lewisburg SATA RAID device IDs
ata: sata_rcar: Use ARCH_RENESAS
sata_via: Implement hotplug for VT6421
sata_via: Apply WD workaround only when needed on VT6421
ahci: Add runtime PM support for the host controller
ahci: Add functions to manage runtime PM of AHCI ports
ahci: Convert driver to use modern PM hooks
ahci: Cache host controller version
scsi: Drop runtime PM usage count after host is added
scsi: Set request queue runtime PM status back to active on resume
block: Add blk_set_runtime_active()
ata: ahci_mvebu: add support for Armada 3700 variant
libata: fix unbalanced spin_lock_irqsave/spin_unlock_irq() in ata_scsi_park_show()
libata: support AHCI on OCTEON platform
Merge second patch-bomb from Andrew Morton:
- a couple of hotfixes
- the rest of MM
- a new timer slack control in procfs
- a couple of procfs fixes
- a few misc things
- some printk tweaks
- lib/ updates, notably to radix-tree.
- add my and Nick Piggin's old userspace radix-tree test harness to
tools/testing/radix-tree/. Matthew said it was a godsend during the
radix-tree work he did.
- a few code-size improvements, switching to __always_inline where gcc
screwed up.
- partially implement character sets in sscanf
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
sscanf: implement basic character sets
lib/bug.c: use common WARN helper
param: convert some "on"/"off" users to strtobool
lib: add "on"/"off" support to kstrtobool
lib: update single-char callers of strtobool()
lib: move strtobool() to kstrtobool()
include/linux/unaligned: force inlining of byteswap operations
include/uapi/linux/byteorder, swab: force inlining of some byteswap operations
include/asm-generic/atomic-long.h: force inlining of some atomic_long operations
usb: common: convert to use match_string() helper
ide: hpt366: convert to use match_string() helper
ata: hpt366: convert to use match_string() helper
power: ab8500: convert to use match_string() helper
power: charger_manager: convert to use match_string() helper
drm/edid: convert to use match_string() helper
pinctrl: convert to use match_string() helper
device property: convert to use match_string() helper
lib/string: introduce match_string() helper
radix-tree tests: add test for radix_tree_iter_next
radix-tree tests: add regression3 test
...
Pull block driver updates from Jens Axboe:
"This is the block driver pull request for this merge window. It sits
on top of for-4.6/core, that was just sent out.
This contains:
- A set of fixes for lightnvm. One from Alan, fixing an overflow,
and the rest from the usual suspects, Javier and Matias.
- A set of fixes for nbd from Markus and Dan, and a fixup from Arnd
for correct usage of the signed 64-bit divider.
- A set of bug fixes for the Micron mtip32xx, from Asai.
- A fix for the brd discard handling from Bart.
- Update the maintainers entry for cciss, since that hardware has
transferred ownership.
- Three bug fixes for bcache from Eric Wheeler.
- Set of fixes for xen-blk{back,front} from Jan and Konrad.
- Removal of the cpqarray driver. It has been disabled in Kconfig
since 2013, and we were initially scheduled to remove it in 3.15.
- Various updates and fixes for NVMe, with the most important being:
- Removal of the per-device NVMe thread, replacing that with a
watchdog timer instead. From Christoph.
- Exposing the namespace WWID through sysfs, from Keith.
- Set of cleanups from Ming Lin.
- Logging the controller device name instead of the underlying
PCI device name, from Sagi.
- And a bunch of fixes and optimizations from the usual suspects
in this area"
* 'for-4.6/drivers' of git://git.kernel.dk/linux-block: (49 commits)
NVMe: Expose ns wwid through single sysfs entry
drivers:block: cpqarray clean up
brd: Fix discard request processing
cpqarray: remove it from the kernel
cciss: update MAINTAINERS
NVMe: Remove unused sq_head read in completion path
bcache: fix cache_set_flush() NULL pointer dereference on OOM
bcache: cleaned up error handling around register_cache()
bcache: fix race of writeback thread starting before complete initialization
NVMe: Create discard zero quirk white list
nbd: use correct div_s64 helper
mtip32xx: remove unneeded variable in mtip_cmd_timeout()
lightnvm: generalize rrpc ppa calculations
lightnvm: remove struct nvm_dev->total_blocks
lightnvm: rename ->nr_pages to ->nr_sects
lightnvm: update closed list outside of intr context
xen/blback: Fit the important information of the thread in 17 characters
lightnvm: fold get bb tbl when using dual/quad plane mode
lightnvm: fix up nonsensical configure overrun checking
xen-blkback: advertise indirect segment support earlier
...
- Freescale Touch Screen ADC
- X-Powers AXP PMIC with RSB
- TI TPS65086 Power Management IC (PMIC)
- New Device Support
- Supply device PCI IDs for Intel Broxton
- Fix-ups
- Move to clkdev_create() API; intel_quark_i2c_gpio
- Complete re-write of TI's TPS65912 Power Management IC (PMIC)
- Remove unnecessary function argument; axp20x
- Separate out bus related code; axp20x
- Coding Style changes; axp20x
- Allow more drivers to be compiled as modules
- Work around false positive 'used uninitialised' warning; db8500-prcmu
- Bug Fixes
- Remove do_div(); fsl-imx25-gcq
- Fix driver init when built-in; tps65010
- Fix clock-unregister leak; intel-lpss
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Merge tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Freescale Touch Screen ADC
- X-Powers AXP PMIC with RSB
- TI TPS65086 Power Management IC (PMIC)
New Device Support:
- Supply device PCI IDs for Intel Broxton
Fix-ups:
- Move to clkdev_create() API; intel_quark_i2c_gpio
- Complete re-write of TI's TPS65912 Power Management IC (PMIC)
- Remove unnecessary function argument; axp20x
- Separate out bus related code; axp20x
- Coding Style changes; axp20x
- Allow more drivers to be compiled as modules
- Work around false positive 'used uninitialised' warning; db8500-prcmu
Bug Fixes:
- Remove do_div(); fsl-imx25-gcq
- Fix driver init when built-in; tps65010
- Fix clock-unregister leak; intel-lpss"
* tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits)
mfd: intel-lpss: Pass I2C configuration via properties on BXT
mfd: imx6sx: Add PCIe register definitions for iomuxc gpr
mfd: ipaq-micro: Use __maybe_unused to hide pm functions
mfd: max77686: Add max77802 to I2C device ID table
mfd: max77686: Export OF module alias information
mfd: max77686: Allow driver to be built as a module
mfd: stmpe: Add the proper PWM resources
mfd: tps65090: Set regmap config reg counts properly
mfd: syscon: Return ENOTSUPP instead of ENOSYS when disabled
mfd: as3711: Set regmap config reg counts properly
mfd: rc5t583: Set regmap config reg counts properly
gpio: tps65086: Add GPO driver for the TPS65086 PMIC
mfd: mt6397: Add platform device ID table
mfd: da9063: Fix missing volatile registers in the core regmap_range volatile lists
mfd: mt6397: Add MT6323 support to MT6397 driver
mfd: mt6397: Add support for different Slave types
mfd: mt6397: int_con and int_status may vary in location
dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC
mfd: da9062: Fix missing volatile registers in the core regmap_range volatile lists
mfd: Add documentation for ACT8945A DT bindings
...
After a heavy storm by syzkaller in 4.5 cycle, we have relatively few
changes in the core at this time while a lot of changes are found in
the driver side, unsurprisingly. Below are some highlights:
ALSA core:
- A few more hardening in ALSA timer codes
- An extension of sequencer API for advertising the card / pid
- Small fixes in compress-offload and jack layers
HD-audio:
- Dynamic PCM assignment in HDMI/DP codec; preparation for upcoming
DP-MST support
- Lots of code refactoring for sharing with ASoC SKL driver
- Regression fixes for Intel HDMI/DP
- Fixups for CX20724 codec, Lenovo AiO
USB-audio:
- Add quirk_alias option to make quirk debugging easier
- Fixes for possible Oops by malformed firmware
Firewire:
- Add support for FW-1804 in tascam driver
- Improvements / changes in card registration, multi stream handling,
etc for DICE
- Lots of code refactoring
ASoC:
- Enhancements of still ongoing topology API
- Lots of commits for Intel Skylake support including HDMI support
- A few Intel Atom driver updates for recent devices
- Lots of improvements to the Renesas drivers
- Capture support for Qualcomm drivers
- Support for TI DaVinci DRA7xxx devices
- New machine drivers for Freescale systems with Cirrus CODECs,
Mediatek systems with RT5650 CODECs
- New CPU drivers for Allwinner S/PDIF controllers
- New CODEC drivers for Maxim MAX9867 and MAX98926 and Realtek RT5514
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Merge tag 'sound-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"After a heavy storm by syzkaller in 4.5 cycle, we have relatively few
changes in the core at this time while a lot of changes are found in
the driver side, unsurprisingly. Below are some highlights:
ALSA core:
- A few more hardening in ALSA timer codes
- An extension of sequencer API for advertising the card / pid
- Small fixes in compress-offload and jack layers
HD-audio:
- Dynamic PCM assignment in HDMI/DP codec; preparation for upcoming
DP-MST support
- Lots of code refactoring for sharing with ASoC SKL driver
- Regression fixes for Intel HDMI/DP
- Fixups for CX20724 codec, Lenovo AiO
USB-audio:
- Add quirk_alias option to make quirk debugging easier
- Fixes for possible Oops by malformed firmware
Firewire:
- Add support for FW-1804 in tascam driver
- Improvements / changes in card registration, multi stream handling,
etc for DICE
- Lots of code refactoring
ASoC:
- Enhancements of still ongoing topology API
- Lots of commits for Intel Skylake support including HDMI support
- A few Intel Atom driver updates for recent devices
- Lots of improvements to the Renesas drivers
- Capture support for Qualcomm drivers
- Support for TI DaVinci DRA7xxx devices
- New machine drivers for Freescale systems with Cirrus CODECs,
Mediatek systems with RT5650 CODECs
- New CPU drivers for Allwinner S/PDIF controllers
- New CODEC drivers for Maxim MAX9867 and MAX98926 and Realtek RT5514"
* tag 'sound-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (291 commits)
ALSA: hda - Fix mutex deadlock at HDMI/DP hotplug
ALSA: ctl: change return value in compatibility layer so that it's the same value in core implementation
ALSA: mixart: silence an uninitialized variable warning
ALSA: usb-audio: Add sanity checks for endpoint accesses
ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk()
ALSA: usb-audio: Fix NULL dereference in create_fixed_stream_quirk()
ALSA: hda - Limit i915 HDMI binding only for HSW and later
ALSA: hda - Fix unconditional GPIO toggle via automute
ALSA: mixart: silence unitialized variable warnings
ALSA: hda - Fixes double fault in nvhdmi_chmap_cea_alloc_validate_get_type
ALSA: intel8x0: Add clock quirk entry for AD1981B on IBM ThinkPad X41.
ALSA: hda - Add new GPU codec ID 0x10de0082 to snd-hda
ASoC: rsnd: add simplified module explanation
ASoC: hdac_hdmi: Add broxton device ID
ASoC: Intel: Bxtn: Add Broxton PCI ID
ASoC: Intel: Skylake: Move Skylake dsp ops & loader ops
ASoC: Intel: add dmabuffer to common sst_dsp
ASoC: Intel: Skylake: Unstatify skl_dsp_enable_core
ASoC: Intel: Skylake: Fix whitepsace issues
ASoC: Intel: Skylake: Move module id defines
...
This is a simple extension to the block layout driver to use SCSI
persistent reservations for access control and fencing, as well as
SCSI VPD pages for device identification.
For this we need to pass the nfs4_client to the proc_getdeviceinfo method
to generate the reservation key, and add a new fence_client method
to allow for fence actions in the layout driver.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
eGalax_eMPIA Technology Inc (EETI) is a company specialized in
touchscreen controller solutions.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Here is the big staging driver pull request for 4.6-rc1.
Lots of little things here, over 1600 patches or so. Notible is all of
the good Lustre work happening, those developers have finally woken up
and are cleaning up their code greatly. The Outreachy intern
application process is also happening, which brought in another 400 or
so patches. Full details are in the very long shortlog.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here is the big staging driver pull request for 4.6-rc1.
Lots of little things here, over 1600 patches or so. Notable is all
of the good Lustre work happening, those developers have finally woken
up and are cleaning up their code greatly. The Outreachy intern
application process is also happening, which brought in another 400 or
so patches. Full details are in the very long shortlog.
All of these have been in linux-next with no reported issues"
* tag 'staging-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1673 commits)
staging: lustre: fix aligments in lnet selftest
staging: lustre: report minimum of two buffers for LNet selftest load test
staging: lustre: test for proper errno code in lstcon_rpc_trans_abort
staging: lustre: filter remaining extra spacing for lnet selftest
staging: lustre: remove extra spacing when setting variable for lnet selftest
staging: lustre: remove extra spacing of variable declartions for lnet selftest
staging: lustre: fix spacing issues checkpatch reported in lnet selftest
staging: lustre: remove returns in void function for lnet selftest
staging: lustre: fix bogus lst errors for lnet selftest
staging: netlogic: Replacing pr_err with dev_err after the call to devm_kzalloc
staging: mt29f_spinand: Replacing pr_info with dev_info after the call to devm_kzalloc
staging: android: ion: fix up file mode
staging: ion: debugfs invalid gfp mask
staging: rts5208: Replace pci_enable_device with pcim_enable_device
Staging: ieee80211: Place constant on right side of the test.
staging: speakup: Replace del_timer with del_timer_sync
staging: lowmemorykiller: fix 2 checks that checkpatch complained
staging: mt29f_spinand: Drop void pointer cast
staging: rdma: hfi1: file_ops: Replace ALIGN with PAGE_ALIGN
staging: rdma: hfi1: driver: Replace IS_ALIGNED with PAGE_ALIGNED
...
Pull input updates from Dmitry Torokhov:
"The most notable item is addition of support for Synaptics RMI4
protocol which is native protocol for all current Synaptics devices
(touchscreens, touchpads). In later releases we'll switch devices
using HID and PS/2 protocol emulation to RMI4.
You will also get:
- BYD PS/2 touchpad protocol support for psmouse
- MELFAS MIP4 Touchscreen driver
- rotary encoder was moved away from legacy platform data and to
generic device properties API, devm_* API, and can now handle
encoders using more than 2 GPIOs
- Cypress touchpad driver was switched to devm_* API and device
properties
- other assorted driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
ARM: pxa/raumfeld: use PROPERTY_ENTRY_INTEGER to define props
Input: synaptics-rmi4 - using logical instead of bitwise AND
Input: powermate - fix oops with malicious USB descriptors
Input: snvs_pwrkey - fix returned value check of syscon_regmap_lookup_by_phandle()
MAINTAINERS: add devicetree bindings to Input Drivers section
Input: synaptics-rmi4 - add device tree support to the SPI transport driver
Input: synaptics-rmi4 - add SPI transport driver
Input: synaptics-rmi4 - add support for F30
Input: synaptics-rmi4 - add support for F12
Input: synaptics-rmi4 - add device tree support for 2d sensors and F11
Input: synaptics-rmi4 - add support for 2D sensors and F11
Input: synaptics-rmi4 - add device tree support for RMI4 I2C devices
Input: synaptics-rmi4 - add I2C transport driver
Input: synaptics-rmi4 - add support for Synaptics RMI4 devices
Input: ad7879 - add device tree support
Input: ad7879 - fix default x/y axis assignment
Input: ad7879 - move header to platform_data directory
Input: ts4800 - add hardware dependency
Input: cyapa - fix for losing events during device power transitions
Input: sh_keysc - remove dependency on SUPERH
...
Core changes:
- The gpio_chip is now a *real device*. Until now the gpio chips
were just piggybacking the parent device or (gasp) floating in
space outside of the device model. We now finally make GPIO chips
devices. The gpio_chip will create a gpio_device which contains
a struct device, and this gpio_device struct is kept private.
Anything that needs to be kept private from the rest of the kernel
will gradually be moved over to the gpio_device.
- As a result of making the gpio_device a real device, we have added
resource management, so devm_gpiochip_add_data() will cut down on
overhead and reduce code lines. A huge slew of patches convert
almost all drivers in the subsystem to use this.
- Building on making the GPIO a real device, we add the first step
of a new userspace ABI: the GPIO character device. We take small
steps here, so we first add a pure *information* ABI and the tool
"lsgpio" that will list all GPIO devices on the system and all
lines on these devices. We can now discover GPIOs properly from
userspace. We still have not come up with a way to actually *use*
GPIOs from userspace.
- To encourage people to use the character device for the future,
we have it always-enabled when using GPIO. The old sysfs ABI is
still opt-in (and can be used in parallel), but is marked as
deprecated. We will keep it around for the foreseeable future,
but it will not be extended to cover ever more use cases.
Cleanup:
- Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
includes. This dates back to when GPIO was an opt-in feature and
no shared library even existed: just a header file with proper
prototypes was provided and all semantics were up to the arch to
implement. These patches make the GPIO chip even more a proper
device and cleans out leftovers of the old in-kernel API here
and there. Still some cruft is left but it's very little now.
- There is still some clamping of return values for .get() going
on, but we now return sane values in the vast majority of drivers
and the errorpath is sanitized. Some patches for powerpc, blackfin
and unicore still drop in.
- We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
implementations to use gpiochip_add_data() and cut down on code
lines.
- MPC8xxx is converted to use the generic GPIO helpers.
- ATH79 is converted to use the generic GPIO helpers.
New drivers:
- WinSystems WS16C48
- Acces 104-DIO-48E
- F81866 (a F7188x variant)
- Qoric (a MPC8xxx variant)
- TS-4800
- SPI serializers (pisosr): simple 74xx shift registers connected
to SPI to obtain a dirt-cheap output-only GPIO expander.
- Texas Instruments TPIC2810
- Texas Instruments TPS65218
- Texas Instruments TPS65912
- X-Gene (ARM64) standby GPIO controller
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Merge tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for kernel v4.6. There is quite a
lot of interesting stuff going on.
The patches to other subsystems and arch-wide are ACKed as far as
possible, though I consider things like per-arch <asm/gpio.h> as
essentially a part of the GPIO subsystem so it should not be needed.
Core changes:
- The gpio_chip is now a *real device*. Until now the gpio chips
were just piggybacking the parent device or (gasp) floating in
space outside of the device model.
We now finally make GPIO chips devices. The gpio_chip will create
a gpio_device which contains a struct device, and this gpio_device
struct is kept private. Anything that needs to be kept private
from the rest of the kernel will gradually be moved over to the
gpio_device.
- As a result of making the gpio_device a real device, we have added
resource management, so devm_gpiochip_add_data() will cut down on
overhead and reduce code lines. A huge slew of patches convert
almost all drivers in the subsystem to use this.
- Building on making the GPIO a real device, we add the first step of
a new userspace ABI: the GPIO character device. We take small
steps here, so we first add a pure *information* ABI and the tool
"lsgpio" that will list all GPIO devices on the system and all
lines on these devices.
We can now discover GPIOs properly from userspace. We still have
not come up with a way to actually *use* GPIOs from userspace.
- To encourage people to use the character device for the future, we
have it always-enabled when using GPIO. The old sysfs ABI is still
opt-in (and can be used in parallel), but is marked as deprecated.
We will keep it around for the foreseeable future, but it will not
be extended to cover ever more use cases.
Cleanup:
- Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
includes.
This dates back to when GPIO was an opt-in feature and no shared
library even existed: just a header file with proper prototypes was
provided and all semantics were up to the arch to implement. These
patches make the GPIO chip even more a proper device and cleans out
leftovers of the old in-kernel API here and there.
Still some cruft is left but it's very little now.
- There is still some clamping of return values for .get() going on,
but we now return sane values in the vast majority of drivers and
the errorpath is sanitized. Some patches for powerpc, blackfin and
unicore still drop in.
- We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
implementations to use gpiochip_add_data() and cut down on code
lines.
- MPC8xxx is converted to use the generic GPIO helpers.
- ATH79 is converted to use the generic GPIO helpers.
New drivers:
- WinSystems WS16C48
- Acces 104-DIO-48E
- F81866 (a F7188x variant)
- Qoric (a MPC8xxx variant)
- TS-4800
- SPI serializers (pisosr): simple 74xx shift registers connected to
SPI to obtain a dirt-cheap output-only GPIO expander.
- Texas Instruments TPIC2810
- Texas Instruments TPS65218
- Texas Instruments TPS65912
- X-Gene (ARM64) standby GPIO controller"
* tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (194 commits)
Revert "Share upstreaming patches"
gpio: mcp23s08: Fix clearing of interrupt.
gpiolib: Fix comment referring to gpio_*() in gpiod_*()
gpio: pca953x: Fix pca953x_gpio_set_multiple() on 64-bit
gpio: xgene: Fix kconfig for standby GIPO contoller
gpio: Add generic serializer DT binding
gpio: uapi: use 0xB4 as ioctl() major
gpio: tps65912: fix bad merge
Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free"
gpio: omap: drop dev field from gpio_bank structure
gpio: mpc8xxx: Slightly update the code for better readability
gpio: mpc8xxx: Remove *read_reg and *write_reg from struct mpc8xxx_gpio_chip
gpio: mpc8xxx: Fixup setting gpio direction output
gpio: mcp23s08: Add support for mcp23s18
dt-bindings: gpio: altera: Fix altr,interrupt-type property
gpio: add driver for MEN 16Z127 GPIO controller
gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free
gpio: timberdale: Switch to devm_ioremap_resource()
gpio: ts4800: Add IMX51 dependency
gpiolib: rewrite gpiodev_add_to_list
...
- Initial page table creation reworked to avoid breaking large block
mappings (huge pages) into smaller ones. The ARM architecture requires
break-before-make in such cases to avoid TLB conflicts but that's not
always possible on live page tables
- Kernel virtual memory layout: the kernel image is no longer linked to
the bottom of the linear mapping (PAGE_OFFSET) but at the bottom of
the vmalloc space, allowing the kernel to be loaded (nearly) anywhere
in physical RAM
- Kernel ASLR: position independent kernel Image and modules being
randomly mapped in the vmalloc space with the randomness is provided
by UEFI (efi_get_random_bytes() patches merged via the arm64 tree,
acked by Matt Fleming)
- Implement relative exception tables for arm64, required by KASLR
(initial code for ARCH_HAS_RELATIVE_EXTABLE added to lib/extable.c but
actual x86 conversion to deferred to 4.7 because of the merge
dependencies)
- Support for the User Access Override feature of ARMv8.2: this allows
uaccess functions (get_user etc.) to be implemented using LDTR/STTR
instructions. Such instructions, when run by the kernel, perform
unprivileged accesses adding an extra level of protection. The
set_fs() macro is used to "upgrade" such instruction to privileged
accesses via the UAO bit
- Half-precision floating point support (part of ARMv8.2)
- Optimisations for CPUs with or without a hardware prefetcher (using
run-time code patching)
- copy_page performance improvement to deal with 128 bytes at a time
- Sanity checks on the CPU capabilities (via CPUID) to prevent
incompatible secondary CPUs from being brought up (e.g. weird
big.LITTLE configurations)
- valid_user_regs() reworked for better sanity check of the sigcontext
information (restored pstate information)
- ACPI parking protocol implementation
- CONFIG_DEBUG_RODATA enabled by default
- VDSO code marked as read-only
- DEBUG_PAGEALLOC support
- ARCH_HAS_UBSAN_SANITIZE_ALL enabled
- Erratum workaround Cavium ThunderX SoC
- set_pte_at() fix for PROT_NONE mappings
- Code clean-ups
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"Here are the main arm64 updates for 4.6. There are some relatively
intrusive changes to support KASLR, the reworking of the kernel
virtual memory layout and initial page table creation.
Summary:
- Initial page table creation reworked to avoid breaking large block
mappings (huge pages) into smaller ones. The ARM architecture
requires break-before-make in such cases to avoid TLB conflicts but
that's not always possible on live page tables
- Kernel virtual memory layout: the kernel image is no longer linked
to the bottom of the linear mapping (PAGE_OFFSET) but at the bottom
of the vmalloc space, allowing the kernel to be loaded (nearly)
anywhere in physical RAM
- Kernel ASLR: position independent kernel Image and modules being
randomly mapped in the vmalloc space with the randomness is
provided by UEFI (efi_get_random_bytes() patches merged via the
arm64 tree, acked by Matt Fleming)
- Implement relative exception tables for arm64, required by KASLR
(initial code for ARCH_HAS_RELATIVE_EXTABLE added to lib/extable.c
but actual x86 conversion to deferred to 4.7 because of the merge
dependencies)
- Support for the User Access Override feature of ARMv8.2: this
allows uaccess functions (get_user etc.) to be implemented using
LDTR/STTR instructions. Such instructions, when run by the kernel,
perform unprivileged accesses adding an extra level of protection.
The set_fs() macro is used to "upgrade" such instruction to
privileged accesses via the UAO bit
- Half-precision floating point support (part of ARMv8.2)
- Optimisations for CPUs with or without a hardware prefetcher (using
run-time code patching)
- copy_page performance improvement to deal with 128 bytes at a time
- Sanity checks on the CPU capabilities (via CPUID) to prevent
incompatible secondary CPUs from being brought up (e.g. weird
big.LITTLE configurations)
- valid_user_regs() reworked for better sanity check of the
sigcontext information (restored pstate information)
- ACPI parking protocol implementation
- CONFIG_DEBUG_RODATA enabled by default
- VDSO code marked as read-only
- DEBUG_PAGEALLOC support
- ARCH_HAS_UBSAN_SANITIZE_ALL enabled
- Erratum workaround Cavium ThunderX SoC
- set_pte_at() fix for PROT_NONE mappings
- Code clean-ups"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (99 commits)
arm64: kasan: Fix zero shadow mapping overriding kernel image shadow
arm64: kasan: Use actual memory node when populating the kernel image shadow
arm64: Update PTE_RDONLY in set_pte_at() for PROT_NONE permission
arm64: Fix misspellings in comments.
arm64: efi: add missing frame pointer assignment
arm64: make mrs_s prefixing implicit in read_cpuid
arm64: enable CONFIG_DEBUG_RODATA by default
arm64: Rework valid_user_regs
arm64: mm: check at build time that PAGE_OFFSET divides the VA space evenly
arm64: KVM: Move kvm_call_hyp back to its original localtion
arm64: mm: treat memstart_addr as a signed quantity
arm64: mm: list kernel sections in order
arm64: lse: deal with clobbered IP registers after branch via PLT
arm64: mm: dump: Use VA_START directly instead of private LOWEST_ADDR
arm64: kconfig: add submenu for 8.2 architectural features
arm64: kernel: acpi: fix ioremap in ACPI parking protocol cpu_postboot
arm64: Add support for Half precision floating point
arm64: Remove fixmap include fragility
arm64: Add workaround for Cavium erratum 27456
arm64: mm: Mark .rodata as RO
...
- A large patch from me to simplify setting up the list of default
groups by actually implementing it as a list instead of an array.
- a small Y2083 prep patch from Deepa Dinamani. Probably doesn't matter
on it's own, but it seems like he is trying to get rid of all CURRENT_TIME
uses in file systems, which is a worthwhile goal.
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Merge tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs
Pull configfs updates from Christoph Hellwig:
- A large patch from me to simplify setting up the list of default
groups by actually implementing it as a list instead of an array.
- a small Y2083 prep patch from Deepa Dinamani. Probably doesn't
matter on it's own, but it seems like he is trying to get rid of all
CURRENT_TIME uses in file systems, which is a worthwhile goal.
* tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs:
configfs: switch ->default groups to a linked list
configfs: Replace CURRENT_TIME by current_fs_time()
There are various email addresses for me throughout the kernel. Use the
one that will always be valid.
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch provides a proc/PID/timerslack_ns interface which exposes a
task's timerslack value in nanoseconds and allows it to be changed.
This allows power/performance management software to set timer slack for
other threads according to its policy for the thread (such as when the
thread is designated foreground vs. background activity)
If the value written is non-zero, slack is set to that value. Otherwise
sets it to the default for the thread.
This interface checks that the calling task has permissions to to use
PTRACE_MODE_ATTACH_FSCREDS on the target task, so that we can ensure
arbitrary apps do not change the timer slack for other apps.
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Oren Laadan <orenl@cellrox.com>
Cc: Ruchi Kandoi <kandoiruchi@google.com>
Cc: Rom Lemarchand <romlem@android.com>
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Setting the original memory.limit_in_bytes hardlimit is subject to a
race condition when the desired value is below the current usage. The
code tries a few times to first reclaim and then see if the usage has
dropped to where we would like it to be, but there is no locking, and
the workload is free to continue making new charges up to the old limit.
Thus, attempting to shrink a workload relies on pure luck and hope that
the workload happens to cooperate.
To fix this in the cgroup2 memory.max knob, do it the other way round:
set the limit first, then try enforcement. And if reclaim is not able
to succeed, trigger OOM kills in the group. Keep going until the new
limit is met, we run out of OOM victims and there's only unreclaimable
memory left, or the task writing to memory.max is killed. This allows
users to shrink groups reliably, and the behavior is consistent with
what happens when new charges are attempted in excess of memory.max.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
THP defrag is enabled by default to direct reclaim/compact but not wake
kswapd in the event of a THP allocation failure. The problem is that
THP allocation requests potentially enter reclaim/compaction. This
potentially incurs a severe stall that is not guaranteed to be offset by
reduced TLB misses. While there has been considerable effort to reduce
the impact of reclaim/compaction, it is still a high cost and workloads
that should fit in memory fail to do so. Specifically, a simple
anon/file streaming workload will enter direct reclaim on NUMA at least
even though the working set size is 80% of RAM. It's been years and
it's time to throw in the towel.
First, this patch defines THP defrag as follows;
madvise: A failed allocation will direct reclaim/compact if the application requests it
never: Neither reclaim/compact nor wake kswapd
defer: A failed allocation will wake kswapd/kcompactd
always: A failed allocation will direct reclaim/compact (historical behaviour)
khugepaged defrag will enter direct/reclaim but not wake kswapd.
Next it sets the default defrag option to be "madvise" to only enter
direct reclaim/compaction for applications that specifically requested
it.
Lastly, it removes a check from the page allocator slowpath that is
related to __GFP_THISNODE to allow "defer" to work. The callers that
really cares are slub/slab and they are updated accordingly. The slab
one may be surprising because it also corrects a comment as kswapd was
never woken up by that path.
This means that a THP fault will no longer stall for most applications
by default and the ideal for most users that get THP if they are
immediately available. There are still options for users that prefer a
stall at startup of a new application by either restoring historical
behaviour with "always" or pick a half-way point with "defer" where
kswapd does some of the work in the background and wakes kcompactd if
necessary. THP defrag for khugepaged remains enabled and will enter
direct/reclaim but no wakeup kswapd or kcompactd.
After this patch a THP allocation failure will quickly fallback and rely
on khugepaged to recover the situation at some time in the future. In
some cases, this will reduce THP usage but the benefit of THP is hard to
measure and not a universal win where as a stall to reclaim/compaction
is definitely measurable and can be painful.
The first test for this is using "usemem" to read a large file and write
a large anonymous mapping (to avoid the zero page) multiple times. The
total size of the mappings is 80% of RAM and the benchmark simply
measures how long it takes to complete. It uses multiple threads to see
if that is a factor. On UMA, the performance is almost identical so is
not reported but on NUMA, we see this
usemem
4.4.0 4.4.0
kcompactd-v1r1 nodefrag-v1r3
Amean System-1 102.86 ( 0.00%) 46.81 ( 54.50%)
Amean System-4 37.85 ( 0.00%) 34.02 ( 10.12%)
Amean System-7 48.12 ( 0.00%) 46.89 ( 2.56%)
Amean System-12 51.98 ( 0.00%) 56.96 ( -9.57%)
Amean System-21 80.16 ( 0.00%) 79.05 ( 1.39%)
Amean System-30 110.71 ( 0.00%) 107.17 ( 3.20%)
Amean System-48 127.98 ( 0.00%) 124.83 ( 2.46%)
Amean Elapsd-1 185.84 ( 0.00%) 105.51 ( 43.23%)
Amean Elapsd-4 26.19 ( 0.00%) 25.58 ( 2.33%)
Amean Elapsd-7 21.65 ( 0.00%) 21.62 ( 0.16%)
Amean Elapsd-12 18.58 ( 0.00%) 17.94 ( 3.43%)
Amean Elapsd-21 17.53 ( 0.00%) 16.60 ( 5.33%)
Amean Elapsd-30 17.45 ( 0.00%) 17.13 ( 1.84%)
Amean Elapsd-48 15.40 ( 0.00%) 15.27 ( 0.82%)
For a single thread, the benchmark completes 43.23% faster with this
patch applied with smaller benefits as the thread increases. Similar,
notice the large reduction in most cases in system CPU usage. The
overall CPU time is
4.4.0 4.4.0
kcompactd-v1r1 nodefrag-v1r3
User 10357.65 10438.33
System 3988.88 3543.94
Elapsed 2203.01 1634.41
Which is substantial. Now, the reclaim figures
4.4.0 4.4.0
kcompactd-v1r1nodefrag-v1r3
Minor Faults 128458477 278352931
Major Faults 2174976 225
Swap Ins 16904701 0
Swap Outs 17359627 0
Allocation stalls 43611 0
DMA allocs 0 0
DMA32 allocs 19832646 19448017
Normal allocs 614488453 580941839
Movable allocs 0 0
Direct pages scanned 24163800 0
Kswapd pages scanned 0 0
Kswapd pages reclaimed 0 0
Direct pages reclaimed 20691346 0
Compaction stalls 42263 0
Compaction success 938 0
Compaction failures 41325 0
This patch eliminates almost all swapping and direct reclaim activity.
There is still overhead but it's from NUMA balancing which does not
identify that it's pointless trying to do anything with this workload.
I also tried the thpscale benchmark which forces a corner case where
compaction can be used heavily and measures the latency of whether base
or huge pages were used
thpscale Fault Latencies
4.4.0 4.4.0
kcompactd-v1r1 nodefrag-v1r3
Amean fault-base-1 5288.84 ( 0.00%) 2817.12 ( 46.73%)
Amean fault-base-3 6365.53 ( 0.00%) 3499.11 ( 45.03%)
Amean fault-base-5 6526.19 ( 0.00%) 4363.06 ( 33.15%)
Amean fault-base-7 7142.25 ( 0.00%) 4858.08 ( 31.98%)
Amean fault-base-12 13827.64 ( 0.00%) 10292.11 ( 25.57%)
Amean fault-base-18 18235.07 ( 0.00%) 13788.84 ( 24.38%)
Amean fault-base-24 21597.80 ( 0.00%) 24388.03 (-12.92%)
Amean fault-base-30 26754.15 ( 0.00%) 19700.55 ( 26.36%)
Amean fault-base-32 26784.94 ( 0.00%) 19513.57 ( 27.15%)
Amean fault-huge-1 4223.96 ( 0.00%) 2178.57 ( 48.42%)
Amean fault-huge-3 2194.77 ( 0.00%) 2149.74 ( 2.05%)
Amean fault-huge-5 2569.60 ( 0.00%) 2346.95 ( 8.66%)
Amean fault-huge-7 3612.69 ( 0.00%) 2997.70 ( 17.02%)
Amean fault-huge-12 3301.75 ( 0.00%) 6727.02 (-103.74%)
Amean fault-huge-18 6696.47 ( 0.00%) 6685.72 ( 0.16%)
Amean fault-huge-24 8000.72 ( 0.00%) 9311.43 (-16.38%)
Amean fault-huge-30 13305.55 ( 0.00%) 9750.45 ( 26.72%)
Amean fault-huge-32 9981.71 ( 0.00%) 10316.06 ( -3.35%)
The average time to fault pages is substantially reduced in the majority
of caseds but with the obvious caveat that fewer THPs are actually used
in this adverse workload
4.4.0 4.4.0
kcompactd-v1r1 nodefrag-v1r3
Percentage huge-1 0.71 ( 0.00%) 14.04 (1865.22%)
Percentage huge-3 10.77 ( 0.00%) 33.05 (206.85%)
Percentage huge-5 60.39 ( 0.00%) 38.51 (-36.23%)
Percentage huge-7 45.97 ( 0.00%) 34.57 (-24.79%)
Percentage huge-12 68.12 ( 0.00%) 40.07 (-41.17%)
Percentage huge-18 64.93 ( 0.00%) 47.82 (-26.35%)
Percentage huge-24 62.69 ( 0.00%) 44.23 (-29.44%)
Percentage huge-30 43.49 ( 0.00%) 55.38 ( 27.34%)
Percentage huge-32 50.72 ( 0.00%) 51.90 ( 2.35%)
4.4.0 4.4.0
kcompactd-v1r1nodefrag-v1r3
Minor Faults 37429143 47564000
Major Faults 1916 1558
Swap Ins 1466 1079
Swap Outs 2936863 149626
Allocation stalls 62510 3
DMA allocs 0 0
DMA32 allocs 6566458 6401314
Normal allocs 216361697 216538171
Movable allocs 0 0
Direct pages scanned 25977580 17998
Kswapd pages scanned 0 3638931
Kswapd pages reclaimed 0 207236
Direct pages reclaimed 8833714 88
Compaction stalls 103349 5
Compaction success 270 4
Compaction failures 103079 1
Note again that while this does swap as it's an aggressive workload, the
direct relcim activity and allocation stalls is substantially reduced.
There is some kswapd activity but ftrace showed that the kswapd activity
was due to normal wakeups from 4K pages being allocated.
Compaction-related stalls and activity are almost eliminated.
I also tried the stutter benchmark. For this, I do not have figures for
NUMA but it's something that does impact UMA so I'll report what is
available
stutter
4.4.0 4.4.0
kcompactd-v1r1 nodefrag-v1r3
Min mmap 7.3571 ( 0.00%) 7.3438 ( 0.18%)
1st-qrtle mmap 7.5278 ( 0.00%) 17.9200 (-138.05%)
2nd-qrtle mmap 7.6818 ( 0.00%) 21.6055 (-181.25%)
3rd-qrtle mmap 11.0889 ( 0.00%) 21.8881 (-97.39%)
Max-90% mmap 27.8978 ( 0.00%) 22.1632 ( 20.56%)
Max-93% mmap 28.3202 ( 0.00%) 22.3044 ( 21.24%)
Max-95% mmap 28.5600 ( 0.00%) 22.4580 ( 21.37%)
Max-99% mmap 29.6032 ( 0.00%) 25.5216 ( 13.79%)
Max mmap 4109.7289 ( 0.00%) 4813.9832 (-17.14%)
Mean mmap 12.4474 ( 0.00%) 19.3027 (-55.07%)
This benchmark is trying to fault an anonymous mapping while there is a
heavy IO load -- a scenario that desktop users used to complain about
frequently. This shows a mix because the ideal case of mapping with THP
is not hit as often. However, note that 99% of the mappings complete
13.79% faster. The CPU usage here is particularly interesting
4.4.0 4.4.0
kcompactd-v1r1nodefrag-v1r3
User 67.50 0.99
System 1327.88 91.30
Elapsed 2079.00 2128.98
And once again we look at the reclaim figures
4.4.0 4.4.0
kcompactd-v1r1nodefrag-v1r3
Minor Faults 335241922 1314582827
Major Faults 715 819
Swap Ins 0 0
Swap Outs 0 0
Allocation stalls 532723 0
DMA allocs 0 0
DMA32 allocs 1822364341 1177950222
Normal allocs 1815640808 1517844854
Movable allocs 0 0
Direct pages scanned 21892772 0
Kswapd pages scanned 20015890 41879484
Kswapd pages reclaimed 19961986 41822072
Direct pages reclaimed 21892741 0
Compaction stalls 1065755 0
Compaction success 514 0
Compaction failures 1065241 0
Allocation stalls and all direct reclaim activity is eliminated as well
as compaction-related stalls.
THP gives impressive gains in some cases but only if they are quickly
available. We're not going to reach the point where they are completely
free so lets take the costs out of the fast paths finally and defer the
cost to kswapd, kcompactd and khugepaged where it belongs.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In machines with 140G of memory and enterprise flash storage, we have
seen read and write bursts routinely exceed the kswapd watermarks and
cause thundering herds in direct reclaim. Unfortunately, the only way
to tune kswapd aggressiveness is through adjusting min_free_kbytes - the
system's emergency reserves - which is entirely unrelated to the
system's latency requirements. In order to get kswapd to maintain a
250M buffer of free memory, the emergency reserves need to be set to 1G.
That is a lot of memory wasted for no good reason.
On the other hand, it's reasonable to assume that allocation bursts and
overall allocation concurrency scale with memory capacity, so it makes
sense to make kswapd aggressiveness a function of that as well.
Change the kswapd watermark scale factor from the currently fixed 25% of
the tunable emergency reserve to a tunable 0.1% of memory.
Beyond 1G of memory, this will produce bigger watermark steps than the
current formula in default settings. Ensure that the new formula never
chooses steps smaller than that, i.e. 25% of the emergency reserve.
On a 140G machine, this raises the default watermark steps - the
distance between min and low, and low and high - from 16M to 143M.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: David Rientjes <rientjes@google.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>
Count how many times we put a THP in split queue. Currently, it happens
on partial unmap of a THP.
Rapidly growing value can indicate that an application behaves
unfriendly wrt THP: often fault in huge page and then unmap part of it.
This leads to unnecessary memory fragmentation and the application may
require tuning.
The event also can help with debugging kernel [mis-]behaviour.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Show how much memory is allocated to kernel stacks.
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Show how much memory is used for storing reclaimable and unreclaimable
in-kernel data structures allocated from slab caches.
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here is the big USB patchset for 4.6-rc1.
The normal mess is here, gadget and xhci fixes and updates, and lots of
other driver updates and cleanups as well. Full details are in the
shortlog.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here is the big USB patchset for 4.6-rc1.
The normal mess is here, gadget and xhci fixes and updates, and lots
of other driver updates and cleanups as well. Full details are in the
shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (266 commits)
USB: core: let USB device know device node
usb: devio: Add ioctl to disallow detaching kernel USB drivers.
usb: gadget: f_acm: Fix configfs attr name
usb: udc: lpc32xx: remove USB PLL and USB OTG clock management
usb: udc: lpc32xx: remove direct access to clock controller registers
usb: udc: lpc32xx: switch to clock prepare/unprepare model
usb: renesas_usbhs: gadget: fix giveback status code in usbhsg_pipe_disable()
usb: gadget: renesas_usb3: Use ARCH_RENESAS
usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma()
usb: dwc2: Add support for Lantiq ARX and XRX SoCs
usb: phy: generic: Handle late registration of gadget
usb: gadget: bdc_udc: fix race condition in bdc_udc_exit()
usb: musb: core: added missing const qualifier to musb_hdrc_platform_data::config
usb: dwc2: Move host-specific core functions into hcd.c
usb: dwc2: Move register save and restore functions
usb: dwc2: Use kmem_cache_free()
usb: dwc2: host: If using uframe scheduler, end splits better
usb: dwc2: host: Totally redo the microframe scheduler
usb: dwc2: host: Properly set even/odd frame
usb: dwc2: host: Add dwc2_hcd_get_future_frame_number() call
...
Here's the big tty/serial driver pull request for 4.6-rc1.
Lots of changes in here, Peter has been on a tear again, with lots of
refactoring and bugs fixes, many thanks to the great work he has been
doing. Lots of driver updates and fixes as well, full details in the
shortlog.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial updates from Greg KH:
"Here's the big tty/serial driver pull request for 4.6-rc1.
Lots of changes in here, Peter has been on a tear again, with lots of
refactoring and bugs fixes, many thanks to the great work he has been
doing. Lots of driver updates and fixes as well, full details in the
shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (220 commits)
serial: 8250: describe CONFIG_SERIAL_8250_RSA
serial: samsung: optimize UART rx fifo access routine
serial: pl011: add mark/space parity support
serial: sa1100: make sa1100_register_uart_fns a function
tty: serial: 8250: add MOXA Smartio MUE boards support
serial: 8250: convert drivers to use up_to_u8250p()
serial: 8250/mediatek: fix building with SERIAL_8250=m
serial: 8250/ingenic: fix building with SERIAL_8250=m
serial: 8250/uniphier: fix modular build
Revert "drivers/tty/serial: make 8250/8250_ingenic.c explicitly non-modular"
Revert "drivers/tty/serial: make 8250/8250_mtk.c explicitly non-modular"
serial: mvebu-uart: initial support for Armada-3700 serial port
serial: mctrl_gpio: Add missing module license
serial: ifx6x60: avoid uninitialized variable use
tty/serial: at91: fix bad offset for UART timeout register
tty/serial: at91: restore dynamic driver binding
serial: 8250: Add hardware dependency to RT288X option
TTY, devpts: document pty count limiting
tty: goldfish: support platform_device with id -1
drivers: tty: goldfish: Add device tree bindings
...
Here is the big char/misc driver update for 4.6-rc1.
The majority of the patches here is hwtracing and some new mic drivers,
but there's a lot of other driver updates as well. Full details in the
shortlog.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc updates from Greg KH:
"Here is the big char/misc driver update for 4.6-rc1.
The majority of the patches here is hwtracing and some new mic
drivers, but there's a lot of other driver updates as well. Full
details in the shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'char-misc-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (238 commits)
goldfish: Fix build error of missing ioremap on UM
nvmem: mediatek: Fix later provider initialization
nvmem: imx-ocotp: Fix return value of imx_ocotp_read
nvmem: Fix dependencies for !HAS_IOMEM archs
char: genrtc: replace blacklist with whitelist
drivers/hwtracing: make coresight-etm-perf.c explicitly non-modular
drivers: char: mem: fix IS_ERROR_VALUE usage
char: xillybus: Fix internal data structure initialization
pch_phub: return -ENODATA if ROM can't be mapped
Drivers: hv: vmbus: Support kexec on ws2012 r2 and above
Drivers: hv: vmbus: Support handling messages on multiple CPUs
Drivers: hv: utils: Remove util transport handler from list if registration fails
Drivers: hv: util: Pass the channel information during the init call
Drivers: hv: vmbus: avoid unneeded compiler optimizations in vmbus_wait_for_unload()
Drivers: hv: vmbus: remove code duplication in message handling
Drivers: hv: vmbus: avoid wait_for_completion() on crash
Drivers: hv: vmbus: don't loose HVMSG_TIMER_EXPIRED messages
misc: at24: replace memory_accessor with nvmem_device_read
eeprom: 93xx46: extend driver to plug into the NVMEM framework
eeprom: at25: extend driver to plug into the NVMEM framework
...
Just a few patches this time around for the 4.6-rc1 merge window.
Largest is a new firmware driver, but there are some other updates to
the driver core in here as well, the shortlog has the details.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Just a few patches this time around for the 4.6-rc1 merge window.
Largest is a new firmware driver, but there are some other updates to
the driver core in here as well, the shortlog has the details.
All have been in linux-next for a while with no reported issues"
* tag 'driver-core-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Revert "driver-core: platform: probe of-devices only using list of compatibles"
firmware: qemu config needs I/O ports
firmware: qemu_fw_cfg.c: fix typo FW_CFG_DATA_OFF
driver-core: platform: probe of-devices only using list of compatibles
driver-core: platform: fix typo in documentation for multi-driver helper
component: remove impossible condition
drivers: dma-coherent: simplify dma_init_coherent_memory return value
devicetree: update documentation for fw_cfg ARM bindings
firmware: create directory hierarchy for sysfs fw_cfg entries
firmware: introduce sysfs driver for QEMU's fw_cfg device
kobject: export kset_find_obj() for module use
driver core: bus: use to_subsys_private and to_device_private_bus
driver core: bus: use list_for_each_entry*
debugfs: Add stub function for debugfs_create_automount().
kernfs: make kernfs_walk_ns() use kernfs_pr_cont_buf[]
* nokia-modem: add N950 and N9 support
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Merge tag 'hsi-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
Pull HSI updates from Sebastian Reichel:
"nokia-modem: add N950 and N9 support"
* tag 'hsi-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
HSI: ssi-protocol: Use handshake logic from n950
HSI: nokia-modem: add n950 and n9 support
* add types for USB Type C and PD chargers
* add act8945a charger driver
* add ACPI/DT bindings for goldfish-battery
* add support for versatile reset controller
* misc. fixes
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Merge tag 'for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset changes from Sebastian Reichel:
- add types for USB Type C and PD chargers
- add act8945a charger driver
- add ACPI/DT bindings for goldfish-battery
- add support for versatile reset controller
- misc fixes
* tag 'for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (24 commits)
power: pm2301-charger: use __maybe_unused to hide pm functions
power: ipaq-micro-battery: use __maybe_unused to hide pm functions
power_supply: 88pm860x_charger: do not pass NULL to power_supply_put
jz4740-battery: Correct voltage change check
power_supply: lp8788-charger: initialize boolean 'found'
goldfish: Enable ACPI-based enumeration for goldfish battery
power: goldfish_battery: add devicetree bindings
power: act8945a: add charger driver for ACT8945A
power: add documentation for ACT8945A's charger DT bindings
ARM: dts: n900: Rename isp1704 to isp1707 to match correct name
power_supply: bq27xxx_battery: Add of modalias and match table when CONFIG_OF is enabled
power_supply: bq2415x_charger: Add of modalias and match table when CONFIG_OF is enabled
power_supply: bq2415x_charger: Do not add acpi modalias when CONFIG_ACPI is not enabled
power_supply: isp1704_charger: Add compatible of match for nxp,isp1707
power_supply: isp1704_charger: Error messages when probe fail
power_supply: Add types for USB Type C and PD chargers
power: bq24735-charger: add 'ti,external-control' option
power: bq24735-charger: document 'ti,external-control' option
power: bq24735-charger: fix failed i2c with ac-detect
power: reset: Fix dependencies for !HAS_IOMEM archs
...
Add a new pseudo-board, within the existing SH boards/machine-vectors
framework, which does not represent any actual hardware but instead
requires all hardware to be described by the device tree blob provided
by the boot loader. Changes made are thus non-invasive and do not risk
breaking support for legacy boards.
New hardware, including the open-hardware J2 and associated SoC
devices, will use device free from the outset. Legacy SH boards can
transition to device tree once all their hardware has device tree
bindings, driver support for device tree, and a dts file for the
board.
It is intented that, once all boards are supported in the new
framework, the existing machine-vectors framework should be removed
and the new device tree setup code integrated directly.
Signed-off-by: Rich Felker <dalias@libc.org>
This is smallish update with minor changes to core and new driver and usual
updates. Nothing super exciting here..
- We have made slave address as physical to enable driver to do the mapping.
- We now expose the maxburst for slave dma as new capability so clients can
know this and program accordingly
- addition of device synchronize callbacks on omap and edma.
- pl330 updates to support DMAFLUSHP for Rockchip platforms.
- Updates and improved sg handling in Xilinx VDMA driver.
- New hidma qualcomm dma driver, though some bits are still in progress
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Merge tag 'dmaengine-4.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
"This is smallish update with minor changes to core and new driver and
usual updates. Nothing super exciting here..
- We have made slave address as physical to enable driver to do the
mapping.
- We now expose the maxburst for slave dma as new capability so
clients can know this and program accordingly
- addition of device synchronize callbacks on omap and edma.
- pl330 updates to support DMAFLUSHP for Rockchip platforms.
- Updates and improved sg handling in Xilinx VDMA driver.
- New hidma qualcomm dma driver, though some bits are still in
progress"
* tag 'dmaengine-4.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (40 commits)
dmaengine: IOATDMA: revise channel reset workaround on CB3.3 platforms
dmaengine: add Qualcomm Technologies HIDMA channel driver
dmaengine: add Qualcomm Technologies HIDMA management driver
dmaengine: hidma: Add Device Tree binding
dmaengine: qcom_bam_dma: move to qcom directory
dmaengine: tegra: Move of_device_id table near to its user
dmaengine: xilinx_vdma: Remove unnecessary variable initializations
dmaengine: sirf: use __maybe_unused to hide pm functions
dmaengine: rcar-dmac: clear pertinence number of channels
dmaengine: sh: shdmac: don't open code of_device_get_match_data()
dmaengine: tegra: don't open code of_device_get_match_data()
dmaengine: qcom_bam_dma: Make driver work for BE
dmaengine: sun4i: support module autoloading
dma/mic_x100_dma: IS_ERR() vs PTR_ERR() typo
dmaengine: xilinx_vdma: Use readl_poll_timeout instead of do while loop's
dmaengine: xilinx_vdma: Simplify spin lock handling
dmaengine: xilinx_vdma: Fix issues with non-parking mode
dmaengine: xilinx_vdma: Improve SG engine handling
dmaengine: pl330: fix to support the burst mode
dmaengine: make slave address physical
...
New driver for controlling ST's remote processors and a couple of minor
fixes. Also includes the addition of myself as co-maintainer.
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Merge tag 'rproc-v4.6' of git://github.com/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"New driver for controlling ST's remote processors and a couple of
minor fixes. Also includes the addition of myself as co-maintainer"
Acked-by: Ohad Ben-Cohen <ohad@wizery.com>
* tag 'rproc-v4.6' of git://github.com/andersson/remoteproc:
MAINTAINERS: Add co-maintainer for remoteproc subsystems
remoteproc: Supply controller driver for ST's Remote Processors
remoteproc: debugfs: Add ability to boot remote processor using debugfs
remoteproc: dt: Provide bindings for ST's Remote Processor Controller driver
remoteproc: debugfs: Return error on invalid 'count' value
remoteproc/wkup_m3: Use MODULE_DEVICE_TABLE to export alias
remoteproc: report error if resource table doesn't exist
updates, etc.
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Merge tag 'docs-for-linus' of git://git.lwn.net/linux
Pul documentation update from Jon Corbet:
"Another relatively boring cycle for the docs tree: typo fixes,
translation updates, etc"
* tag 'docs-for-linus' of git://git.lwn.net/linux:
modsign: Fix documentation on module signing enforcement parameter.
Doc: nfs: Fix typos in Documentation/filesystems/nfs
Documentation: kselftest: Remove duplicate word
doc: fix grammar
Documentation: Howto: Fixed subtitles style
Doc: ARM: Fix a typo in clksrc-change-registers.awk
Documentation/ko_KR: update maintainer information
Documentation: Fix int/unsigned int comparison
Documentation: Chinese translation of arm64/silicon-errata.txt
Documentation:Update Documentation/zh_CN/arm64/booting.txt
Documentation: HOWTO: remove obsolete info about regression postings
Doc: ja_JP: Fix a typo in HOWTO
Doc: i2c: Fix typo in Documentation/i2c
Doc: DocBook: Fix a typo in device-drivers.tmpl
Remove "arch" usage in Documentation/features/list-arch.sh
README: cosmetic fixes
Documentation/CodingStyle: add space before parenthesis in example macro
SubmittingPatches: fix spelling of "git send-email"
Pull security layer updates from James Morris:
"There are a bunch of fixes to the TPM, IMA, and Keys code, with minor
fixes scattered across the subsystem.
IMA now requires signed policy, and that policy is also now measured
and appraised"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (67 commits)
X.509: Make algo identifiers text instead of enum
akcipher: Move the RSA DER encoding check to the crypto layer
crypto: Add hash param to pkcs1pad
sign-file: fix build with CMS support disabled
MAINTAINERS: update tpmdd urls
MODSIGN: linux/string.h should be #included to get memcpy()
certs: Fix misaligned data in extra certificate list
X.509: Handle midnight alternative notation in GeneralizedTime
X.509: Support leap seconds
Handle ISO 8601 leap seconds and encodings of midnight in mktime64()
X.509: Fix leap year handling again
PKCS#7: fix unitialized boolean 'want'
firmware: change kernel read fail to dev_dbg()
KEYS: Use the symbol value for list size, updated by scripts/insert-sys-cert
KEYS: Reserve an extra certificate symbol for inserting without recompiling
modsign: hide openssl output in silent builds
tpm_tis: fix build warning with tpm_tis_resume
ima: require signed IMA policy
ima: measure and appraise the IMA policy itself
ima: load policy using path
...
Pull crypto update from Herbert Xu:
"Here is the crypto update for 4.6:
API:
- Convert remaining crypto_hash users to shash or ahash, also convert
blkcipher/ablkcipher users to skcipher.
- Remove crypto_hash interface.
- Remove crypto_pcomp interface.
- Add crypto engine for async cipher drivers.
- Add akcipher documentation.
- Add skcipher documentation.
Algorithms:
- Rename crypto/crc32 to avoid name clash with lib/crc32.
- Fix bug in keywrap where we zero the wrong pointer.
Drivers:
- Support T5/M5, T7/M7 SPARC CPUs in n2 hwrng driver.
- Add PIC32 hwrng driver.
- Support BCM6368 in bcm63xx hwrng driver.
- Pack structs for 32-bit compat users in qat.
- Use crypto engine in omap-aes.
- Add support for sama5d2x SoCs in atmel-sha.
- Make atmel-sha available again.
- Make sahara hashing available again.
- Make ccp hashing available again.
- Make sha1-mb available again.
- Add support for multiple devices in ccp.
- Improve DMA performance in caam.
- Add hashing support to rockchip"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits)
crypto: qat - remove redundant arbiter configuration
crypto: ux500 - fix checks of error code returned by devm_ioremap_resource()
crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
crypto: qat - Change the definition of icp_qat_uof_regtype
hwrng: exynos - use __maybe_unused to hide pm functions
crypto: ccp - Add abstraction for device-specific calls
crypto: ccp - CCP versioning support
crypto: ccp - Support for multiple CCPs
crypto: ccp - Remove check for x86 family and model
crypto: ccp - memset request context to zero during import
lib/mpi: use "static inline" instead of "extern inline"
lib/mpi: avoid assembler warning
hwrng: bcm63xx - fix non device tree compatibility
crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode.
crypto: qat - The AE id should be less than the maximal AE number
lib/mpi: Endianness fix
crypto: rockchip - add hash support for crypto engine in rk3288
crypto: xts - fix compile errors
crypto: doc - add skcipher API documentation
crypto: doc - update AEAD AD handling
...
This patch adds phys and phy-names for sdhci-of-arasan as required
properties for arasan,sdhci-5.1, and details the example as well.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Merge tag 'media/v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- Added support for some new video formats
- mn88473 DVB frontend driver got promoted from staging
- several improvements at the VSP1 driver
- several cleanups and improvements at the Media Controller
- added Media Controller support to snd-usb-audio. Currently, enabled
only for au0828-based V4L2/DVB boards
- Several improvements at nuvoton-cir: it now supports wake up codes
- Add media controller support to em28xx and saa7134 drivers
- coda driver now accepts NXP distributed firmware files
- Some legacy SoC camera drivers will be moving to staging, as they're
outdated and nobody so far is willing to fix and convert them to use
the current media framework
- As usual, lots of cleanups, improvements and new board additions.
* tag 'media/v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (381 commits)
media: au0828 disable tuner to demod link in au0828_media_device_register()
[media] touptek: cast char types on %x printk
[media] touptek: don't DMA at the stack
[media] mceusb: use %*ph for small buffer dumps
[media] v4l: exynos4-is: Drop unneeded check when setting up fimc-lite links
[media] v4l: vsp1: Check if an entity is a subdev with the right function
[media] hide unused functions for !MEDIA_CONTROLLER
[media] em28xx: fix Terratec Grabby AC97 codec detection
[media] media: add prefixes to interface types
[media] media: rc: nuvoton: switch attribute wakeup_data to text
[media] v4l2-ioctl: fix YUV422P pixel format description
[media] media: fix null pointer dereference in v4l_vb2q_enable_media_source()
[media] v4l2-mc.h: fix yet more compiler errors
[media] staging/media: add missing TODO files
[media] media.h: always start with 1 for the audio entities
[media] sound/usb: Use meaninful names for goto labels
[media] v4l2-mc.h: fix compiler warnings
[media] media: au0828 audio mixer isn't connected to decoder
[media] sound/usb: Use Media Controller API to share media resources
[media] dw2102: add support for TeVii S662
...
(dm-mq) that is used exclussively by DM multipath.
- A stable fix for dm-mq that eliminates excessive context switching
offers the biggest performance improvement (for both IOPs and
throughput).
- But more work is needed, during the next cycle, to reduce spinlock
contention in DM multipath on large NUMA systems.
- A stable fix for a NULL pointer seen when DM stats is enabled on a DM
multipath device that must requeue an IO due to path failure.
- A stable fix for DM snapshot to disallow the COW and origin devices
from being identical. This amounts to graceful failure in the face of
userspace error because these devices shouldn't ever be identical.
- Stable fixes for DM cache and DM thin provisioning to address crashes
seen if/when their respective metadata device experiences failures
that cause the transition to 'fail_io' mode.
- The DM cache 'mq' policy is now an alias for the 'smq' policy. The
'smq' policy proved to be consistently better than 'mq'. As such
'mq', with all its complex user-facing tunables, has been eliminated.
- Improve DM thin provisioning to consistently return -ENOSPC once the
thin-pool's data volume is out of space.
- Improve DM core to properly handle error propagation if
bio_integrity_clone() fails in clone_bio().
- Other small cleanups and improvements to DM core.
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Merge tag 'dm-4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Most attention this cycle went to optimizing blk-mq request-based DM
(dm-mq) that is used exclussively by DM multipath:
- A stable fix for dm-mq that eliminates excessive context
switching offers the biggest performance improvement (for both
IOPs and throughput).
- But more work is needed, during the next cycle, to reduce
spinlock contention in DM multipath on large NUMA systems.
- A stable fix for a NULL pointer seen when DM stats is enabled on a DM
multipath device that must requeue an IO due to path failure.
- A stable fix for DM snapshot to disallow the COW and origin devices
from being identical. This amounts to graceful failure in the face
of userspace error because these devices shouldn't ever be identical.
- Stable fixes for DM cache and DM thin provisioning to address crashes
seen if/when their respective metadata device experiences failures
that cause the transition to 'fail_io' mode.
- The DM cache 'mq' policy is now an alias for the 'smq' policy. The
'smq' policy proved to be consistently better than 'mq'. As such
'mq', with all its complex user-facing tunables, has been eliminated.
- Improve DM thin provisioning to consistently return -ENOSPC once the
thin-pool's data volume is out of space.
- Improve DM core to properly handle error propagation if
bio_integrity_clone() fails in clone_bio().
- Other small cleanups and improvements to DM core.
* tag 'dm-4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (41 commits)
dm: fix rq_end_stats() NULL pointer in dm_requeue_original_request()
dm thin: consistently return -ENOSPC if pool has run out of data space
dm cache: bump the target version
dm cache: make sure every metadata function checks fail_io
dm: add missing newline between DM_DEBUG_BLOCK_STACK_TRACING and DM_BUFIO
dm cache policy smq: clarify that mq registration failure was for 'mq'
dm: return error if bio_integrity_clone() fails in clone_bio()
dm thin metadata: don't issue prefetches if a transaction abort has failed
dm snapshot: disallow the COW and origin devices from being identical
dm cache: make the 'mq' policy an alias for 'smq'
dm: drop unnecessary assignment of md->queue
dm: reorder 'struct mapped_device' members to fix alignment and holes
dm: remove dummy definition of 'struct dm_table'
dm: add 'dm_numa_node' module parameter
dm thin metadata: remove needless newline from subtree_dec() DMERR message
dm mpath: cleanup reinstate_path() et al based on code review
dm mpath: remove __pgpath_busy forward declaration, rename to pgpath_busy
dm mpath: switch from 'unsigned' to 'bool' for flags where appropriate
dm round robin: use percpu 'repeat_count' and 'current_path'
dm path selector: remove 'repeat_count' return from .select_path hook
...
This pull includes driver updates from the usual suspects (stex, hpsa,
ncr5380, scsi_dh, qla2xxx, be2iscsi, hisi_sas, cxlflash, aacraid,
mp3sas, megaraid_sas, ibmvscsi, ufs) plus an assortment of
miscellaneous fixes. The major user visible change of this pull is
that we've moved from monotonically increasing host number to an ida
allocated one (meaning the numbers get re-used) because someone
managed to wrap the count in an iscsi system. We don't believe there
will be any adverse consequences of this.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This pull includes driver updates from the usual suspects (stex, hpsa,
ncr5380, scsi_dh, qla2xxx, be2iscsi, hisi_sas, cxlflash, aacraid,
mp3sas, megaraid_sas, ibmvscsi, ufs) plus an assortment of
miscellaneous fixes.
The major user visible change of this pull is that we've moved from
monotonically increasing host number to an ida allocated one (meaning
the numbers get re-used) because someone managed to wrap the count in
an iscsi system. We don't believe there will be any adverse
consequences of this"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (230 commits)
MAINTAINERS: use new email address for James Bottomley
mpt3sas: Remove unnecessary synchronize_irq() before free_irq()
sg: fix dxferp in from_to case
cxlflash: Increase cmd_per_lun for better throughput
cxlflash: Fix to avoid unnecessary scan with internal LUNs
cxlflash: Reorder user context initialization
cxlflash: Simplify attach path error cleanup
cxlflash: Split out context initialization
cxlflash: Unmap problem state area before detaching master context
cxlflash: Simplify PCI registration
scsi: storvsc: fix SRB_STATUS_ABORTED handling
be2iscsi: set the boot_kset pointer to NULL in case of failure
sd: Fix discard granularity when LBPRZ=1
be2iscsi: Remove unnecessary synchronize_irq() before free_irq()
scsi_sysfs: call 'device_add' after attaching device handler
scsi_dh_emc: update 'access_state' field
scsi_dh_rdac: update 'access_state' field
scsi_dh_alua: update 'access_state' field
scsi_dh_alua: use common definitions for ALUA state
scsi: Add 'access_state' and 'preferred_path' attribute
...
This patch adds the following property for arc_emac.
1) phy-reset-gpios:
The phy-reset-gpio is an optional property for arc emac device tree boot.
Change the binding document to match the driver code.
2) phy-reset-duration:
Different boards may require different phy reset duration. Add property
phy-reset-duration for device tree probe, so that the boards that need
a longer reset duration can specify it in their device tree.
Anyway, we can add the above property for arc emac.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc; Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the rk3036 SoCs to match driver for document since the emac driver
has supported the rk3036 SoCs.
This patch adds the rk3036/rk3066/rk3188 SoCS to compatible for rockchip
emac ducument. Also, that will suit for other SoCs in the future.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This contains a refactoring of parts of the DSI core to allow creating
DSI devices from non-DSI control busses (i.e. I2C, SPI, ...).
Other than that there's support for a couple of new panels as well as
a few cleanup patches.
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Merge tag 'drm/panel/for-4.6-rc1' of http://anongit.freedesktop.org/git/tegra/linux into drm-next
drm/panel: Changes for v4.6-rc1
This contains a refactoring of parts of the DSI core to allow creating
DSI devices from non-DSI control busses (i.e. I2C, SPI, ...).
Other than that there's support for a couple of new panels as well as
a few cleanup patches.
* tag 'drm/panel/for-4.6-rc1' of http://anongit.freedesktop.org/git/tegra/linux:
drm/bridge: Make (pre/post) enable/disable callbacks optional
drm/panel: simple: Add URT UMSH-8596MD-xT panels support
dt-bindings: Add URT UMSH-8596MD-xT panel bindings
of: Add United Radiant Technology Corporation vendor prefix
drm/panel: simple: Support for LG lp120up1 panel
dt-bindings: Add LG lp120up1 panel bindings
drm/panel: simple: Fix g121x1_l03 hsync/vsync polarity
drm/dsi: Get DSI host by DT device node
drm/dsi: Add routine to unregister a DSI device
drm/dsi: Try to match non-DT DSI devices
drm/dsi: Use mipi_dsi_device_register_full() for DSI device creation
drm/dsi: Check for CONFIG_OF when defining of_mipi_dsi_device_add()
- Redesign of cpufreq governors and the intel_pstate driver to
make them use callbacks invoked by the scheduler to trigger CPU
frequency evaluation instead of using per-CPU deferrable timers
for that purpose (Rafael Wysocki).
- Reorganization and cleanup of cpufreq governor code to make it
more straightforward and fix some concurrency problems in it
(Rafael Wysocki, Viresh Kumar).
- Cleanup and improvements of locking in the cpufreq core (Viresh
Kumar).
- Assorted cleanups in the cpufreq core (Rafael Wysocki, Viresh
Kumar, Eric Biggers).
- intel_pstate driver updates including fixes, optimizations and a
modification to make it enable enable hardware-coordinated P-state
selection (HWP) by default if supported by the processor (Philippe
Longepe, Srinivas Pandruvada, Rafael Wysocki, Viresh Kumar, Felipe
Franciosi).
- Operating Performance Points (OPP) framework updates to improve
its handling of voltage regulators and device clocks and updates
of the cpufreq-dt driver on top of that (Viresh Kumar, Jon Hunter).
- Updates of the powernv cpufreq driver to fix initialization
and cleanup problems in it and correct its worker thread handling
with respect to CPU offline, new powernv_throttle tracepoint
(Shilpasri Bhat).
- ACPI cpufreq driver optimization and cleanup (Rafael Wysocki).
- ACPICA updates including one fix for a regression introduced
by previos changes in the ACPICA code (Bob Moore, Lv Zheng,
David Box, Colin Ian King).
- Support for installing ACPI tables from initrd (Lv Zheng).
- Optimizations of the ACPI CPPC code (Prashanth Prakash, Ashwin
Chaugule).
- Support for _HID(ACPI0010) devices (ACPI processor containers)
and ACPI processor driver cleanups (Sudeep Holla).
- Support for ACPI-based enumeration of the AMBA bus (Graeme Gregory,
Aleksey Makarov).
- Modification of the ACPI PCI IRQ management code to make it treat
255 in the Interrupt Line register as "not connected" on x86 (as
per the specification) and avoid attempts to use that value as
a valid interrupt vector (Chen Fan).
- ACPI APEI fixes related to resource leaks (Josh Hunt).
- Removal of modularity from a few ACPI drivers (BGRT, GHES,
intel_pmic_crc) that cannot be built as modules in practice (Paul
Gortmaker).
- PNP framework update to make it treat ACPI_RESOURCE_TYPE_SERIAL_BUS
as a valid resource type (Harb Abdulhamid).
- New device ID (future AMD I2C controller) in the ACPI driver for
AMD SoCs (APD) and in the designware I2C driver (Xiangliang Yu).
- Assorted ACPI cleanups (Colin Ian King, Kaiyen Chang, Oleg Drokin).
- cpuidle menu governor optimization to avoid a square root
computation in it (Rasmus Villemoes).
- Fix for potential use-after-free in the generic device properties
framework (Heikki Krogerus).
- Updates of the generic power domains (genpd) framework including
support for multiple power states of a domain, fixes and debugfs
output improvements (Axel Haslam, Jon Hunter, Laurent Pinchart,
Geert Uytterhoeven).
- Intel RAPL power capping driver updates to reduce IPI overhead in
it (Jacob Pan).
- System suspend/hibernation code cleanups (Eric Biggers, Saurabh
Sengar).
- Year 2038 fix for the process freezer (Abhilash Jindal).
- turbostat utility updates including new features (decoding of more
registers and CPUID fields, sub-second intervals support, GFX MHz
and RC6 printout, --out command line option), fixes (syscall jitter
detection and workaround, reductioin of the number of syscalls made,
fixes related to Xeon x200 processors, compiler warning fixes) and
cleanups (Len Brown, Hubert Chrzaniuk, Chen Yu).
/
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Merge tag 'pm+acpi-4.6-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael Wysocki:
"This time the majority of changes go into cpufreq and they are
significant.
First off, the way CPU frequency updates are triggered is different
now. Instead of having to set up and manage a deferrable timer for
each CPU in the system to evaluate and possibly change its frequency
periodically, cpufreq governors set up callbacks to be invoked by the
scheduler on a regular basis (basically on utilization updates). The
"old" governors, "ondemand" and "conservative", still do all of their
work in process context (although that is triggered by the scheduler
now), but intel_pstate does it all in the callback invoked by the
scheduler with no need for any additional asynchronous processing.
Of course, this eliminates the overhead related to the management of
all those timers, but also it allows the cpufreq governor code to be
simplified quite a bit. On top of that, the common code and data
structures used by the "ondemand" and "conservative" governors are
cleaned up and made more straightforward and some long-standing and
quite annoying problems are addressed. In particular, the handling of
governor sysfs attributes is modified and the related locking becomes
more fine grained which allows some concurrency problems to be avoided
(particularly deadlocks with the core cpufreq code).
In principle, the new mechanism for triggering frequency updates
allows utilization information to be passed from the scheduler to
cpufreq. Although the current code doesn't make use of it, in the
works is a new cpufreq governor that will make decisions based on the
scheduler's utilization data. That should allow the scheduler and
cpufreq to work more closely together in the long run.
In addition to the core and governor changes, cpufreq drivers are
updated too. Fixes and optimizations go into intel_pstate, the
cpufreq-dt driver is updated on top of some modification in the
Operating Performance Points (OPP) framework and there are fixes and
other updates in the powernv cpufreq driver.
Apart from the cpufreq updates there is some new ACPICA material,
including a fix for a problem introduced by previous ACPICA updates,
and some less significant changes in the ACPI code, like CPPC code
optimizations, ACPI processor driver cleanups and support for loading
ACPI tables from initrd.
Also updated are the generic power domains framework, the Intel RAPL
power capping driver and the turbostat utility and we have a bunch of
traditional assorted fixes and cleanups.
Specifics:
- Redesign of cpufreq governors and the intel_pstate driver to make
them use callbacks invoked by the scheduler to trigger CPU
frequency evaluation instead of using per-CPU deferrable timers for
that purpose (Rafael Wysocki).
- Reorganization and cleanup of cpufreq governor code to make it more
straightforward and fix some concurrency problems in it (Rafael
Wysocki, Viresh Kumar).
- Cleanup and improvements of locking in the cpufreq core (Viresh
Kumar).
- Assorted cleanups in the cpufreq core (Rafael Wysocki, Viresh
Kumar, Eric Biggers).
- intel_pstate driver updates including fixes, optimizations and a
modification to make it enable enable hardware-coordinated P-state
selection (HWP) by default if supported by the processor (Philippe
Longepe, Srinivas Pandruvada, Rafael Wysocki, Viresh Kumar, Felipe
Franciosi).
- Operating Performance Points (OPP) framework updates to improve its
handling of voltage regulators and device clocks and updates of the
cpufreq-dt driver on top of that (Viresh Kumar, Jon Hunter).
- Updates of the powernv cpufreq driver to fix initialization and
cleanup problems in it and correct its worker thread handling with
respect to CPU offline, new powernv_throttle tracepoint (Shilpasri
Bhat).
- ACPI cpufreq driver optimization and cleanup (Rafael Wysocki).
- ACPICA updates including one fix for a regression introduced by
previos changes in the ACPICA code (Bob Moore, Lv Zheng, David Box,
Colin Ian King).
- Support for installing ACPI tables from initrd (Lv Zheng).
- Optimizations of the ACPI CPPC code (Prashanth Prakash, Ashwin
Chaugule).
- Support for _HID(ACPI0010) devices (ACPI processor containers) and
ACPI processor driver cleanups (Sudeep Holla).
- Support for ACPI-based enumeration of the AMBA bus (Graeme Gregory,
Aleksey Makarov).
- Modification of the ACPI PCI IRQ management code to make it treat
255 in the Interrupt Line register as "not connected" on x86 (as
per the specification) and avoid attempts to use that value as a
valid interrupt vector (Chen Fan).
- ACPI APEI fixes related to resource leaks (Josh Hunt).
- Removal of modularity from a few ACPI drivers (BGRT, GHES,
intel_pmic_crc) that cannot be built as modules in practice (Paul
Gortmaker).
- PNP framework update to make it treat ACPI_RESOURCE_TYPE_SERIAL_BUS
as a valid resource type (Harb Abdulhamid).
- New device ID (future AMD I2C controller) in the ACPI driver for
AMD SoCs (APD) and in the designware I2C driver (Xiangliang Yu).
- Assorted ACPI cleanups (Colin Ian King, Kaiyen Chang, Oleg Drokin).
- cpuidle menu governor optimization to avoid a square root
computation in it (Rasmus Villemoes).
- Fix for potential use-after-free in the generic device properties
framework (Heikki Krogerus).
- Updates of the generic power domains (genpd) framework including
support for multiple power states of a domain, fixes and debugfs
output improvements (Axel Haslam, Jon Hunter, Laurent Pinchart,
Geert Uytterhoeven).
- Intel RAPL power capping driver updates to reduce IPI overhead in
it (Jacob Pan).
- System suspend/hibernation code cleanups (Eric Biggers, Saurabh
Sengar).
- Year 2038 fix for the process freezer (Abhilash Jindal).
- turbostat utility updates including new features (decoding of more
registers and CPUID fields, sub-second intervals support, GFX MHz
and RC6 printout, --out command line option), fixes (syscall jitter
detection and workaround, reductioin of the number of syscalls
made, fixes related to Xeon x200 processors, compiler warning
fixes) and cleanups (Len Brown, Hubert Chrzaniuk, Chen Yu)"
* tag 'pm+acpi-4.6-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (182 commits)
tools/power turbostat: bugfix: TDP MSRs print bits fixing
tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump
tools/power turbostat: call __cpuid() instead of __get_cpuid()
tools/power turbostat: indicate SMX and SGX support
tools/power turbostat: detect and work around syscall jitter
tools/power turbostat: show GFX%rc6
tools/power turbostat: show GFXMHz
tools/power turbostat: show IRQs per CPU
tools/power turbostat: make fewer systems calls
tools/power turbostat: fix compiler warnings
tools/power turbostat: add --out option for saving output in a file
tools/power turbostat: re-name "%Busy" field to "Busy%"
tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding
tools/power turbostat: Intel Xeon x200: fix erroneous bclk value
tools/power turbostat: allow sub-sec intervals
ACPI / APEI: ERST: Fixed leaked resources in erst_init
ACPI / APEI: Fix leaked resources
intel_pstate: Do not skip samples partially
intel_pstate: Remove freq calculation from intel_pstate_calc_busy()
intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance()
...
Some watchdogs require a minimum time between heartbeats.
Examples are the watchdogs in DA9062 and AT91SAM9x.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Linus Torvalds