- Add audio and eTSEC device support and update dspi node for LS1021A.
- Add initial i.MX6UL and imx6ul-14x14-evk board support, and enable
a bunch of device support for i.MX6UL, including RTC, power key, USB,
QSPI, and dual FEC.
- Enable HDMI and LVDS dual display support for a few imx6qdl boards.
- Support of imx6sl-warp board rev1.12, the version which will be
publicly available for the customers.
- A few i.MX7D device additions, watchdog, cortex-a7 coresight
components, RTC, power key, power off.
- Some Vybrid updates: add device support for I2C, QSPI, eSDHC etc.,
update ADC node, and define stdout-path property.
- A few random updates for i.MX27 and i.MX53 devices.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJVyhktAAoJEFBXWFqHsHzOjQwH/0CXyzRUCJjHqxAHsnvHzOZG
AvjYWqaimxP5PD6TRG1bRxfWWXNL7zZGqj9Jd/l5HIWdWfUxnOLeMy40yfcs+AsH
9CHUunu0rahIDY6YF4gA7F5jyfnSIzxwE8Bkva7nmXvf0XmazTwhCXxYPzdBjMSG
Cf39datyTj9ZS3DD/DAKzRN//zebQCJmPuAdmIlRZljBkoLVPeEZrVxkSN0trRin
vKPQIpamM2DXIMmdiPK52J0j8Vwq4qbiGvvAwUKsaRCUVYfpunpVcZSYgMqm8iEa
7PKuurbVeuvZLzS0Bdq05tCkwVXt0upk0ayf0i8DkHFExX79TNTbONOLJwmigjo=
=iAvA
-----END PGP SIGNATURE-----
Merge tag 'imx-dt-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt
The i.MX device tree updates for 4.3:
- Add audio and eTSEC device support and update dspi node for LS1021A.
- Add initial i.MX6UL and imx6ul-14x14-evk board support, and enable
a bunch of device support for i.MX6UL, including RTC, power key, USB,
QSPI, and dual FEC.
- Enable HDMI and LVDS dual display support for a few imx6qdl boards.
- Support of imx6sl-warp board rev1.12, the version which will be
publicly available for the customers.
- A few i.MX7D device additions, watchdog, cortex-a7 coresight
components, RTC, power key, power off.
- Some Vybrid updates: add device support for I2C, QSPI, eSDHC etc.,
update ADC node, and define stdout-path property.
- A few random updates for i.MX27 and i.MX53 devices.
* tag 'imx-dt-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (44 commits)
ARM: dts: imx6ul: add snvs power key support
ARM: dts: imx6ul: add RTC support
ARM: dts: imx6ul: enable GPC as extended interrupt controller
ARM: dts: imx6sx: correct property name for wakeup source
ARM: dts: add property for maximum ADC clock frequencies
ARM: dts: imx7d: enable snvs rtc, onoffkey and power off
ARM: dts: imx6ul-14x14-evk: add fec1 and fec2 support
ARM: dts: imx: add fec1 and fec2 nodes for SOC i.MX6UL
ARM: dts: imx27: add support of internal rtc
ARM: dts: vf-colibri: define stdout-path property
ARM: dts: ls1021a: Enable the eTSEC ports on QDS and TWR
ARM: dts: ls1021a: Add the eTSEC controller nodes
ARM: dts: imx6ul: add qspi support
ARM: dts: imx6ul: fix low case define in imx6ul-pinfunc.h
ARM: dts: imx6ul: add usb host and function support
ARM: dts: vfxxx: Add io-channel-cells property for ADC node
ARM: dts: ls1021a: Add dts nodes for audio on LS1021A
ARM: imx6qdl-sabreauto.dtsi: enable USB support
ARM: dts: imx: update snvs to use syscon access register
ARM: dts: imx: add imx6ul and imx6ul evk board support
...
Signed-off-by: Olof Johansson <olof@lixom.net>
- Add DTS property "altr,modrst-offset" for reset driver to
use
- Add updated reset defines for the reset driver
- Add reset property for EMACs on Arria10
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=dKt6
-----END PGP SIGNATURE-----
Merge tag 'socfpga_dts_for_v4.3_part_2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/dt
SoCFPGA DTS updates for v4.3, take 2
- Add DTS property "altr,modrst-offset" for reset driver to
use
- Add updated reset defines for the reset driver
- Add reset property for EMACs on Arria10
* tag 'socfpga_dts_for_v4.3_part_2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
ARM: socfpga: dts: Add resets for EMACs on Arria10
ARM: socfpga: dts: add "altr,modrst-offset" property
dt-bindings: Add reset manager offsets for Arria10
Signed-off-by: Olof Johansson <olof@lixom.net>
Add Clock Domain support to the Clock Pulse Generator (CPG) Module Stop
(MSTP) Clocks driver using the generic PM Domain. This allows to
power-manage the module clocks of SoC devices that are part of the
CPG/MSTP Clock Domain using Runtime PM, or for system suspend/resume.
SoC devices that are part of the CPG/MSTP Clock Domain and can be
power-managed through an MSTP clock should be tagged in DT with a
proper "power-domains" property.
The CPG/MSTP Clock Domain code will scan such devices for clocks that
are suitable for power-managing the device, by looking for a clock that
is compatible with "renesas,cpg-mstp-clocks".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The reset manager for is pretty similar to the one for SoCFPGA
cyclone5/arria5 except for a few offsets. This patch adds those offsets.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Some pins on AM43XX support MODE9 for the pinctrl settings so add a
binding to describe this.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
* Add Audio MIX and CTU support to r8a779[01] SoCs
* Correct IRQ sense for adv7511 on lager board
* Add sound label to koelsch and lager boards
* Add IIC support to emev2 SoC
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=wbDB
-----END PGP SIGNATURE-----
Merge tag 'renesas-dt2-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
Second Round of Renesas ARM Based SoC DT Updates for v4.3
* Add Audio MIX and CTU support to r8a779[01] SoCs
* Correct IRQ sense for adv7511 on lager board
* Add sound label to koelsch and lager boards
* Add IIC support to emev2 SoC
* tag 'renesas-dt2-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7791: Add Audio MIX support on DTSI
ARM: shmobile: r8a7791: Add Audio CTU support on DTSI
ARM: shmobile: r8a7790: Add Audio MIX support on DTSI
ARM: shmobile: r8a7790: Add Audio CTU support on DTSI
ARM: shmobile: lager: Fix adv7511 IRQ sensing
ARM: shmobile: koelsch: add sound label on DTS
ARM: shmobile: lager: add sound label on DTS
ARM: shmobile: emev2: kzm9d: enable IIC busses
ARM: shmobile: emev2: add IIC cores to dtsi
Signed-off-by: Olof Johansson <olof@lixom.net>
changes for reemoteproc platform_data and audio options for
omap2plus_defconfig to keep audio working when changing boards
to use SIMPLE_CARD. The summary of changes is:
- A large set of audio related changes for SIMPLE_CARD from
Peter Ujfalusi <peter.ujfalusi@ti.com> for am335x and am437x
- Pinctrl dts defines for dra7 virtual mode to configure timings
- Change to use cpsw slave0 for dra7 Ethernet
- Remove unconfigured and wrong l3-mux entry for dm816x
- Add support for Gumstix Palo35 and TobiDuo boards, and Overo
PoP NAND and McBSP2
- Start using new HDMI binding for tilcdc
- Start using new sDMA crossbar for dra7
- Start using rproc for am335x and am437x M3 coprocessor
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=sPfQ
-----END PGP SIGNATURE-----
Merge tag 'omap-for-v4.3/dt-pt1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Merge "omap dts changes for v4.3, part 1" from Tony Lindgren:
Omap dts changes for v4.3 merge window. There are also related
changes for reemoteproc platform_data and audio options for
omap2plus_defconfig to keep audio working when changing boards
to use SIMPLE_CARD. The summary of changes is:
- A large set of audio related changes for SIMPLE_CARD from
Peter Ujfalusi <peter.ujfalusi@ti.com> for am335x and am437x
- Pinctrl dts defines for dra7 virtual mode to configure timings
- Change to use cpsw slave0 for dra7 Ethernet
- Remove unconfigured and wrong l3-mux entry for dm816x
- Add support for Gumstix Palo35 and TobiDuo boards, and Overo
PoP NAND and McBSP2
- Start using new HDMI binding for tilcdc
- Start using new sDMA crossbar for dra7
- Start using rproc for am335x and am437x M3 coprocessor
* tag 'omap-for-v4.3/dt-pt1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (32 commits)
ARM: dts: am335x-evm: Switch using simple-audio-card for audio support
ARM: dts: am335x-evm: Add sleep pin settings for mcasp1
ARM: dts: am335x-evm: Rename pinctrl section for McASP1
ARM: dts: am335x-evm: Fix mcasp1 node's indentation
ARM: dts: am335x-evmsk: Switch using simple-audio-card for audio support
ARM: dts: am335x-evmsk: Add sleep pin settings for mcasp1
ARM: dts: am335x-evmsk: Fix mcasp1 node's indentation
ARM: dts: am437x-gp-evm: Enable analog audio via simple-card
ARM: dts: am437x-gp-evm: McASP1 node for audio support
ARM: dts: am437x-gp-evm: Add node for tlv320aic3106 audio codec
ARM: dts: am437x-gp-evm: Rename fixed regulator vmmcsd_fixed to evm_v3_3d
ARM: dts: am437x-gp-evm: Add gpio-hog for configuring the display/audio mux
ARM: dts: am43xx-epos-evm: Enable analog audio via simple-card
ARM: dts: am43xx-epos-evm: Add node for tlv320aic3111 audio codec
ARM: dts: am43xx-epos-evm: McASP1 node for audio support
ARM: dts: am43xx-epos-evm: Add regulator for VBAT and DCDC4 of tps65218
ARM: dts: am43xx-epos-evm: Add gpio-hog for configuring the display/audio mux
ARM: dts: am437x-sk-evm: Switch using simple-audio-card for audio support
ARM: dts: am437x-sk-evm: Add sleep pin settings for mcasp1
ARM: omap2plus_defconfig: Enable audio related config options
...
Signed-off-by: Olof Johansson <olof@lixom.net>
In addition to the regular mux configuration such as mux mode 1,
2 etc, certain pins of DRA7 require to have "virtual mode" also
programmed. This allows for predefined delay characteristics to
be used by the SoC to meet timing characterstics needed for the
interface.
Provide easy to use macro to do the same.
It is important to note that the official TI guidelines recommend
to do as minimal pin reconfiguration beyond the bootloader given
the design of the hardware involved which can result in substantial
glitches which may impair functionality of certain peripherals.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
* Configure IRLM mode via DT on r8a7779 SoC
* Use "arm,gic-400" for GIC on r8a777[01349] and r8a73a4 SoCs
* Add pinctrl and gpio-hog for lcdc0 to armadillo800eva board
* EtherAVB DT support for r8a7790 SoC
* Minimal device tree for r8a7793 SoC and its Gose board
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=vwn6
-----END PGP SIGNATURE-----
Merge tag 'renesas-dt-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
Merge "Renesas ARM Based SoC DT Updates for v4.3" from Simon Horman:
* Configure IRLM mode via DT on r8a7779 SoC
* Use "arm,gic-400" for GIC on r8a777[01349] and r8a73a4 SoCs
* Add pinctrl and gpio-hog for lcdc0 to armadillo800eva board
* EtherAVB DT support for r8a7790 SoC
* Minimal device tree for r8a7793 SoC and its Gose board
* tag 'renesas-dt-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7779: Configure IRLM mode via DT
ARM: shmobile: r8a7794 dtsi: Use "arm,gic-400" for GIC
ARM: shmobile: r8a7793 dtsi: Use "arm,gic-400" for GIC
ARM: shmobile: r8a7791 dtsi: Use "arm,gic-400" for GIC
ARM: shmobile: r8a7790 dtsi: Use "arm,gic-400" for GIC
ARM: shmobile: r8a73a4 dtsi: Use "arm,gic-400" for GIC
ARM: shmobile: armadillo800eva dts: Add pinctrl and gpio-hog for lcdc0
ARM: shmobile: r8a7790: add EtherAVB DT support
ARM: shmobile: r8a7790: add EtherAVB clocks
ARM: shmobile: r8a7793: add minimal Gose board device tree
ARM: shmobile: add r8a7793 minimal SoC device tree
Pull timer fixes from Thomas Gleixner:
"This update from the timer departement contains:
- A series of patches which address a shortcoming in the tick
broadcast code.
If the broadcast device is not available or an hrtimer emulated
broadcast device, some of the original assumptions lead to boot
failures. I rather plugged all of the corner cases instead of only
addressing the issue reported, so the change got a little larger.
Has been extensivly tested on x86 and arm.
- Get rid of the last holdouts using do_posix_clock_monotonic_gettime()
- A regression fix for the imx clocksource driver
- An update to the new state callbacks mechanism for clockevents.
This is required to simplify the conversion, which will take place
in 4.3"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick/broadcast: Prevent NULL pointer dereference
time: Get rid of do_posix_clock_monotonic_gettime
cris: Replace do_posix_clock_monotonic_gettime()
tick/broadcast: Unbreak CONFIG_GENERIC_CLOCKEVENTS=n build
tick/broadcast: Handle spurious interrupts gracefully
tick/broadcast: Check for hrtimer broadcast active early
tick/broadcast: Return busy when IPI is pending
tick/broadcast: Return busy if periodic mode and hrtimer broadcast
tick/broadcast: Move the check for periodic mode inside state handling
tick/broadcast: Prevent deep idle if no broadcast device available
tick/broadcast: Make idle check independent from mode and config
tick/broadcast: Sanity check the shutdown of the local clock_event
tick/broadcast: Prevent hrtimer recursion
clockevents: Allow set-state callbacks to be optional
clocksource/imx: Define clocksource for mx27
Pull irq fix from Thomas Gleixner:
"A single fix for a cpu hotplug race vs. interrupt descriptors:
Prevent irq setup/teardown across the cpu starting/dying parts of cpu
hotplug so that the starting/dying cpu has a stable view of the
descriptor space. This has been an issue for all architectures in the
cpu dying phase, where interrupts are migrated away from the dying
cpu. In the starting phase its mostly a x86 issue vs the vector space
update"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hotplug: Prevent alloc/free of irq descriptors during cpu up/down
Pull libnvdimm fixes from Dan Williams:
"1) Fixes for a handful of smatch reports (Thanks Dan C.!) and minor
bug fixes (patches 1-6)
2) Correctness fixes to the BLK-mode nvdimm driver (patches 7-10).
Granted these are slightly large for a -rc update. They have been
out for review in one form or another since the end of May and were
deferred from the merge window while we settled on the "PMEM API"
for the PMEM-mode nvdimm driver (ie memremap_pmem, memcpy_to_pmem,
and wmb_pmem).
Now that those apis are merged we implement them in the BLK driver
to guarantee that mmio aperture moves stay ordered with respect to
incoming read/write requests, and that writes are flushed through
those mmio-windows and platform-buffers to be persistent on media.
These pass the sub-system unit tests with the updates to
tools/testing/nvdimm, and have received a successful build-report from
the kbuild robot (468 configs).
With acks from Rafael for the touches to drivers/acpi/"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm:
nfit: add support for NVDIMM "latch" flag
nfit: update block I/O path to use PMEM API
tools/testing/nvdimm: add mock acpi_nfit_flush_address entries to nfit_test
tools/testing/nvdimm: fix return code for unimplemented commands
tools/testing/nvdimm: mock ioremap_wt
pmem: add maintainer for include/linux/pmem.h
nfit: fix smatch "use after null check" report
nvdimm: Fix return value of nvdimm_bus_init() if class_create() fails
libnvdimm: smatch cleanups in __nd_ioctl
sparse: fix misplaced __pmem definition
A fairly random colletion of fixes based on -rc1 for OMAP, sunxi and
prima2 as well as a few arm64-specific DT fixes.
This series also includes a late to support a new Allwinner (sunxi)
SoC, but since it's rather simple and isolated to the
platform-specific code, it's included it for this -rc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJVoCLHAAoJEFk3GJrT+8ZlDcQP/jVIDk0MvuvfeIsbgWw4Bhys
+ISmgdSTRwSAaI9oHp3ApNSOmq7QspqORdYsZinR6+Em1Seul5vvT9BN9bYAs4fP
Uefvcyo9YSgiKQCLVbOkWnp1pJIPq7BKSvfNco159N4vi6RX+4A4XRrHhEbdLkGa
OhKDnrh0TmbM5b2RkLXlMZR1vsBYEeKxpUlBe3FhKnXYo16yP9Aix2q6oMJBuf99
1kKNfp0DlGhBwkH+nqbUCgNi8OShFcIBrtR1X4fg7LjANEVNvE1Rv0yAJDzsz5hd
g8v2xWaB+ONY08c4NelMLu0ZpspMV+fmeDmTuYpvOEPSYWvGamqEZUsdFMe1Vurm
yqxIoMHSG71dW4SK35QtuvB5LJ/QPytaXidTBU4noFzTVqGaAsvZDHjbRh3YbFm1
3mB+l2oiWtS1zTOjNLK7fGpyWMZ5OKtKdIxMrDPdWR+IHQy7RDGomMIyT1KenrgF
FO2a/1l4CDHumWFAiDx/vyfAm/KSO9uB8p5XTNIdVqge+uT3dVpmwpVSrl9IGDZy
n0YCpqN94lqRR8tEZ+vzyK/zbaUN50t0xOIj3wQKqRUxQxWG//wuX8m1pYW3iJtB
q/CbgladY4jYcEZFcKoeddBBVzI7E/ntPfL54O36Ubv/BA3dSUZ8RHmYi97OzhLf
YuvxhEnO0zwLHvghibZk
=UEUK
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Kevin Hilman:
"A fairly random colletion of fixes based on -rc1 for OMAP, sunxi and
prima2 as well as a few arm64-specific DT fixes.
This series also includes a late to support a new Allwinner (sunxi)
SoC, but since it's rather simple and isolated to the
platform-specific code, it's included it for this -rc"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: dts: add device tree for ARM SMM-A53x2 on LogicTile Express 20MG
arm: dts: vexpress: add missing CCI PMU device node to TC2
arm: dts: vexpress: describe all PMUs in TC2 dts
GICv3: Add ITS entry to THUNDER dts
arm64: dts: Add poweroff button device node for APM X-Gene platform
ARM: dts: am4372.dtsi: disable rfbi
ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2
ARM: dts: am4372: Add emif node
Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep"
ARM: sunxi: Enable simplefb in the defconfig
ARM: Remove deprecated symbol from defconfig files
ARM: sunxi: Add Machine support for A33
ARM: sunxi: Introduce Allwinner H3 support
Documentation: sunxi: Update Allwinner SoC documentation
ARM: prima2: move to use REGMAP APIs for rtciobrg
ARM: dts: atlas7: add pinctrl and gpio descriptions
ARM: OMAP2+: Remove unnessary return statement from the void function, omap2_show_dma_caps
memory: omap-gpmc: Fix parsing of devices
Pull Ceph fixes from Sage Weil:
"There is a fix for CephFS and RBD when used within containers/namespaces,
and a fix for the address learning the client is supposed to do when
initially talking to the Ceph cluster.
There are also two patches updating MAINTAINERS. One breaks out the
common Ceph code shared by fs/ceph and drivers/block/rbd.c into a
separate entry with the appropriate maintainers listed. The second
adds a second reference to the github tree where the Ceph client
development takes place (before it is pushed to korg and then to you).
The goal here is to move closer to a situation where Ilya Dryomov or
one of the other maintainers can push things to you if I am
unavailable. Ilya has done most of the work preparing branches for
upstream recently; you should not be surprised to hear from him if I
am trapped in some internet-less wasteland or hit by a bus or
something. In the meantime, we'll work on getting him added to the
kernel web of trust"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
MAINTAINERS: add secondary tree for ceph modules
MAINTAINERS: update ceph entries
libceph: treat sockaddr_storage with uninitialized family as blank
libceph: enable ceph in a non-default network namespace
Grab a reference on a network namespace of the 'rbd map' (in case of
rbd) or 'mount' (in case of ceph) process and use that to open sockets
instead of always using init_net and bailing if network namespace is
anything but init_net. Be careful to not share struct ceph_client
instances between different namespaces and don't add any code in the
!CONFIG_NET_NS case.
This is based on a patch from Hong Zhiguo <zhiguohong@tencent.com>.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
- Fix for an ACPI resources management regression introduced
during the 4.1 cycle (that unfortunately went into -stable)
effectively reverting the bad commit along with the recent
fixups on top of it and using an alternative approach to
address the underlying issue (Rafael J Wysocki).
- Fix for a memory leak and an incorrect return value in an
error code path in the ACPI LPSS (Low-Power Subsystem) driver
(Rafael J Wysocki).
- Fix for a leftover dangling pointer in an error code path in
the new wakeup IRQ support code (Rafael J Wysocki).
- Fix to prevent infinite loops (due to errors in other places)
from happening in the core generic PM domains support code
(Geert Uytterhoeven).
- Hibernation documentation update/clarification (Uwe Geuder).
- Support for _CLS-based device enumeration in the ACPI core
and in the ATA subsystem (Suravee Suthikulpanit).
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=qomE
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael Wysocki:
"These are fixes on top of the previous PM+ACPI pull requests
(including one fix for a 4.1 regression) and two commits adding
_CLS-based device enumeration support to the ACPI core and the ATA
subsystem that waited for the latest ACPICA changes to be merged.
Specifics:
- Fix for an ACPI resources management regression introduced during
the 4.1 cycle (that unfortunately went into -stable) effectively
reverting the bad commit along with the recent fixups on top of it
and using an alternative approach to address the underlying issue
(Rafael J Wysocki).
- Fix for a memory leak and an incorrect return value in an error
code path in the ACPI LPSS (Low-Power Subsystem) driver (Rafael J
Wysocki).
- Fix for a leftover dangling pointer in an error code path in the
new wakeup IRQ support code (Rafael J Wysocki).
- Fix to prevent infinite loops (due to errors in other places) from
happening in the core generic PM domains support code (Geert
Uytterhoeven).
- Hibernation documentation update/clarification (Uwe Geuder).
- Support for _CLS-based device enumeration in the ACPI core and in
the ATA subsystem (Suravee Suthikulpanit)"
* tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / wakeirq: Avoid setting power.wakeirq too hastily
ata: ahci_platform: Add ACPI _CLS matching
ACPI / scan: Add support for ACPI _CLS device matching
PM / hibernate: clarify resume documentation
PM / Domains: Avoid infinite loops in attach/detach code
ACPI / LPSS: Fix up acpi_lpss_create_device()
ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage
this moves to general APIs, and all drivers will be changed based
on it.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=Beg0
-----END PGP SIGNATURE-----
Merge tag 'sirf-iobrg2regmap-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux into fixes
Merge "CSR SiRFSoC rtc iobrg move to regmap for 4.2" from Barry Song:
move CSR rtc iobrg read/write API to be regmap
this moves to general APIs, and all drivers will be changed based
on it.
* tag 'sirf-iobrg2regmap-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux:
ARM: prima2: move to use REGMAP APIs for rtciobrg
When a cpu goes up some architectures (e.g. x86) have to walk the irq
space to set up the vector space for the cpu. While this needs extra
protection at the architecture level we can avoid a few race
conditions by preventing the concurrent allocation/free of irq
descriptors and the associated data.
When a cpu goes down it moves the interrupts which are targeted to
this cpu away by reassigning the affinities. While this happens
interrupts can be allocated and freed, which opens a can of race
conditions in the code which reassignes the affinities because
interrupt descriptors might be freed underneath.
Example:
CPU1 CPU2
cpu_up/down
irq_desc = irq_to_desc(irq);
remove_from_radix_tree(desc);
raw_spin_lock(&desc->lock);
free(desc);
We could protect the irq descriptors with RCU, but that would require
a full tree change of all accesses to interrupt descriptors. But
fortunately these kind of race conditions are rather limited to a few
things like cpu hotplug. The normal setup/teardown is very well
serialized. So the simpler and obvious solution is:
Prevent allocation and freeing of interrupt descriptors accross cpu
hotplug.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: xiao jin <jin.xiao@intel.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Link: http://lkml.kernel.org/r/20150705171102.063519515@linutronix.de
Making tick_broadcast_oneshot_control() independent from
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST broke the build for
CONFIG_GENERIC_CLOCKEVENTS=n because the function is not defined
there.
Provide a proper stub inline.
Fixes: f32dd11705 'tick/broadcast: Make idle check independent from mode and config'
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Currently the broadcast busy check, which prevents the idle code from
going into deep idle, works only in one shot mode.
If NOHZ and HIGHRES are off (config or command line) there is no
sanity check at all, so under certain conditions cpus are allowed to
go into deep idle, where the local timer stops, and are not woken up
again because there is no broadcast timer installed or a hrtimer based
broadcast device is not evaluated.
Move tick_broadcast_oneshot_control() into the common code and provide
proper subfunctions for the various config combinations.
The common check in tick_broadcast_oneshot_control() is for the C3STOP
misfeature flag of the local clock event device. If its not set, idle
can proceed. If set, further checks are necessary.
Provide checks for the trivial cases:
- If broadcast is disabled in the config, then return busy
- If oneshot mode (NOHZ/HIGHES) is disabled in the config, return
busy if the broadcast device is hrtimer based.
- If oneshot mode is enabled in the config call the original
tick_broadcast_oneshot_control() function. That function needs
extra checks which will be implemented in seperate patches.
[ Split out from a larger combo patch ]
Reported-and-tested-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Suzuki Poulose <Suzuki.Poulose@arm.com>
Cc: Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>
Cc: Catalin Marinas <Catalin.Marinas@arm.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1507070929360.3916@nanos
Device drivers typically use ACPI _HIDs/_CIDs listed in struct device_driver
acpi_match_table to match devices. However, for generic drivers, we do not
want to list _HID for all supported devices. Also, certain classes of devices
do not have _CID (e.g. SATA, USB). Instead, we can leverage ACPI _CLS,
which specifies PCI-defined class code (i.e. base-class, subclass and
programming interface). This patch adds support for matching ACPI devices using
the _CLS method.
To support loadable module, current design uses _HID or _CID to match device's
modalias. With the new way of matching with _CLS this would requires modification
to the current ACPI modalias key to include _CLS. This patch appends PCI-defined
class-code to the existing ACPI modalias as following.
acpi:<HID>:<CID1>:<CID2>:..:<CIDn>:<bbsspp>:
E.g:
# cat /sys/devices/platform/AMDI0600:00/modalias
acpi:AMDI0600:010601:
where bb is th base-class code, ss is te sub-class code, and pp is the
programming interface code
Since there would not be _HID/_CID in the ACPI matching table of the driver,
this patch adds a field to acpi_device_id to specify the matching _CLS.
static const struct acpi_device_id ahci_acpi_match[] = {
{ ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
{},
};
In this case, the corresponded entry in modules.alias file would be:
alias acpi*:010601:* ahci_platform
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This effectively reverts the following three commits:
7bc10388cc ACPI / resources: free memory on error in add_region_before()
0f1b414d19 ACPI / PNP: Avoid conflicting resource reservations
b9a5e5e18f ACPI / init: Fix the ordering of acpi_reserve_resources()
(commit b9a5e5e18f introduced regressions some of which, but not
all, were addressed by commit 0f1b414d19 and commit 7bc10388cc
was a fixup on top of the latter) and causes ACPI fixed hardware
resources to be reserved at the fs_initcall_sync stage of system
initialization.
The story is as follows. First, a boot regression was reported due
to an apparent resource reservation ordering change after a commit
that shouldn't lead to such changes. Investigation led to the
conclusion that the problem happened because acpi_reserve_resources()
was executed at the device_initcall() stage of system initialization
which wasn't strictly ordered with respect to driver initialization
(and with respect to the initialization of the pcieport driver in
particular), so a random change causing the device initcalls to be
run in a different order might break things.
The response to that was to attempt to run acpi_reserve_resources()
as soon as we knew that ACPI would be in use (commit b9a5e5e18f).
However, that turned out to be too early, because it caused resource
reservations made by the PNP system driver to fail on at least one
system and that failure was addressed by commit 0f1b414d19.
That fix still turned out to be insufficient, though, because
calling acpi_reserve_resources() before the fs_initcall stage of
system initialization caused a boot regression to happen on the
eCAFE EC-800-H20G/S netbook. That meant that we only could call
acpi_reserve_resources() at the fs_initcall initialization stage
or later, but then we might just as well call it after the PNP
initalization in which case commit 0f1b414d19 wouldn't be
necessary any more.
For this reason, the changes made by commit 0f1b414d19 are reverted
(along with a memory leak fixup on top of that commit), the changes
made by commit b9a5e5e18f that went too far are reverted too and
acpi_reserve_resources() is changed into fs_initcall_sync, which
will cause it to be executed after the PNP subsystem initialization
(which is an fs_initcall) and before device initcalls (including
the pcieport driver initialization) which should avoid the initial
issue.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=100581
Link: http://marc.info/?t=143092384600002&r=1&w=2
Link: https://bugzilla.kernel.org/show_bug.cgi?id=99831
Link: http://marc.info/?t=143389402600001&r=1&w=2
Fixes: b9a5e5e18f "ACPI / init: Fix the ordering of acpi_reserve_resources()"
Reported-by: Roland Dreier <roland@purestorage.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add the EtherAVB clock to the R8A7790 device tree.
Based on original patch by Mitsuhiro Kimura <mitsuhiro.kimura.kc@renesas.com>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Minimal r8a7793 device tree including one CPU core, interrupt controllers,
timers, two serial ports, and the Ethernet controller, plus the required
clock descriptions.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* address corner cases for indirect blocks->extent migration
* fix reserved block accounting invalidate_page when
page_size != block_size (i.e., ppc or 1k block size file systems)
* fix deadlocks when a memcg is under heavy memory pressure
* fix fencepost error in lazytime optimization
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABCAAGBQJVmW27AAoJEPL5WVaVDYGjmEkIAJsGHVIKur1Kp//FhejSB/wI
B0d+UuQt5kdAE3lNxC7lHO1NqIhvnS7eBho+52LG8V4JDRrzTbE1GdbsBhAIk6FW
CcsQvsHAI99QJMdqOCachu/+nhCwIINGkxmbumhNaZoJPn6wmGQzCA3Cn5qmnGnK
Ctbk6li1HuMXyzbbvxCLfaD/xCUs1NCdufEnRU44i0U4OfaYNpiAhddeGIQ8WMEQ
G14l2JvhIfye6fG8lnCzfacFvnT9zvvSGfRO3ZQjC4Az1EogIUbhCPLvq0ebDbPp
i4eRfrSRdXmMojqmW/knET8skXQVZVnD7LWuvkue+n47UbTH2c0roTbp4l76W+U=
=x8Cc
-----END PGP SIGNATURE-----
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bugfixes from Ted Ts'o:
"Bug fixes (all for stable kernels) for ext4:
- address corner cases for indirect blocks->extent migration
- fix reserved block accounting invalidate_page when
page_size != block_size (i.e., ppc or 1k block size file systems)
- fix deadlocks when a memcg is under heavy memory pressure
- fix fencepost error in lazytime optimization"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: replace open coded nofail allocation in ext4_free_blocks()
ext4: correctly migrate a file with a hole at the beginning
ext4: be more strict when migrating to non-extent based file
ext4: fix reservation release on invalidatepage for delalloc fs
ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp
bufferhead: Add _gfp version for sb_getblk()
ext4: fix fencepost error in lazytime optimization
Pull more vfs updates from Al Viro:
"Assorted VFS fixes and related cleanups (IMO the most interesting in
that part are f_path-related things and Eric's descriptor-related
stuff). UFS regression fixes (it got broken last cycle). 9P fixes.
fs-cache series, DAX patches, Jan's file_remove_suid() work"
[ I'd say this is much more than "fixes and related cleanups". The
file_table locking rule change by Eric Dumazet is a rather big and
fundamental update even if the patch isn't huge. - Linus ]
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (49 commits)
9p: cope with bogus responses from server in p9_client_{read,write}
p9_client_write(): avoid double p9_free_req()
9p: forgetting to cancel request on interrupted zero-copy RPC
dax: bdev_direct_access() may sleep
block: Add support for DAX reads/writes to block devices
dax: Use copy_from_iter_nocache
dax: Add block size note to documentation
fs/file.c: __fget() and dup2() atomicity rules
fs/file.c: don't acquire files->file_lock in fd_install()
fs:super:get_anon_bdev: fix race condition could cause dev exceed its upper limitation
vfs: avoid creation of inode number 0 in get_next_ino
namei: make set_root_rcu() return void
make simple_positive() public
ufs: use dir_pages instead of ufs_dir_pages()
pagemap.h: move dir_pages() over there
remove the pointless include of lglock.h
fs: cleanup slight list_entry abuse
xfs: Correctly lock inode when removing suid and file capabilities
fs: Call security_ops->inode_killpriv on truncate
fs: Provide function telling whether file_remove_privs() will do anything
...
Pull SCSI target updates from Nicholas Bellinger:
"It's been a busy development cycle for target-core in a number of
different areas.
The fabric API usage for se_node_acl allocation is now within
target-core code, dropping the external API callers for all fabric
drivers tree-wide.
There is a new conversion to RCU hlists for se_node_acl and
se_portal_group LUN mappings, that turns fast-past LUN lookup into a
completely lockless code-path. It also removes the original
hard-coded limitation of 256 LUNs per fabric endpoint.
The configfs attributes for backends can now be shared between core
and driver code, allowing existing drivers to use common code while
still allowing flexibility for new backend provided attributes.
The highlights include:
- Merge sbc_verify_dif_* into common code (sagi)
- Remove iscsi-target support for obsolete IFMarker/OFMarker
(Christophe Vu-Brugier)
- Add bidi support in target/user backend (ilias + vangelis + agover)
- Move se_node_acl allocation into target-core code (hch)
- Add crc_t10dif_update common helper (akinobu + mkp)
- Handle target-core odd SGL mapping for data transfer memory
(akinobu)
- Move transport ID handling into target-core (hch)
- Move task tag into struct se_cmd + support 64-bit tags (bart)
- Convert se_node_acl->device_list[] to RCU hlist (nab + hch +
paulmck)
- Convert se_portal_group->tpg_lun_list[] to RCU hlist (nab + hch +
paulmck)
- Simplify target backend driver registration (hch)
- Consolidate + simplify target backend attribute implementations
(hch + nab)
- Subsume se_port + t10_alua_tg_pt_gp_member into se_lun (hch)
- Drop lun_sep_lock for se_lun->lun_se_dev RCU usage (hch + nab)
- Drop unnecessary core_tpg_register TFO parameter (nab)
- Use 64-bit LUNs tree-wide (hannes)
- Drop left-over TARGET_MAX_LUNS_PER_TRANSPORT limit (hannes)"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (76 commits)
target: Bump core version to v5.0
target: remove target_core_configfs.h
target: remove unused TARGET_CORE_CONFIG_ROOT define
target: consolidate version defines
target: implement WRITE_SAME with UNMAP bit using ->execute_unmap
target: simplify UNMAP handling
target: replace se_cmd->execute_rw with a protocol_data field
target/user: Fix inconsistent kmap_atomic/kunmap_atomic
target: Send UA when changing LUN inventory
target: Send UA upon LUN RESET tmr completion
target: Send UA on ALUA target port group change
target: Convert se_lun->lun_deve_lock to normal spinlock
target: use 'se_dev_entry' when allocating UAs
target: Remove 'ua_nacl' pointer from se_ua structure
target_core_alua: Correct UA handling when switching states
xen-scsiback: Fix compile warning for 64-bit LUN
target: Remove TARGET_MAX_LUNS_PER_TRANSPORT
target: use 64-bit LUNs
target: Drop duplicate + unused se_dev_check_wce
target: Drop unnecessary core_tpg_register TFO parameter
...
An abstraction layer was added to allow the hardware and clients to be
easily added. This required rewriting the NTB transport layer for this
abstraction layer. This modification will allow future
"high performance" NTB clients.
In addition to this change, a number of performance modifications were
added. These changes include NUMA enablement, using CPU memcpy instead
of asyncdma, and modification of NTB layer MTU size.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=CyfQ
-----END PGP SIGNATURE-----
Merge tag 'ntb-4.2' of git://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"This includes a pretty significant reworking of the NTB core code, but
has already produced some significant performance improvements.
An abstraction layer was added to allow the hardware and clients to be
easily added. This required rewriting the NTB transport layer for
this abstraction layer. This modification will allow future "high
performance" NTB clients.
In addition to this change, a number of performance modifications were
added. These changes include NUMA enablement, using CPU memcpy
instead of asyncdma, and modification of NTB layer MTU size"
* tag 'ntb-4.2' of git://github.com/jonmason/ntb: (22 commits)
NTB: Add split BAR output for debugfs stats
NTB: Change WARN_ON_ONCE to pr_warn_once on unsafe
NTB: Print driver name and version in module init
NTB: Increase transport MTU to 64k from 16k
NTB: Rename Intel code names to platform names
NTB: Default to CPU memcpy for performance
NTB: Improve performance with write combining
NTB: Use NUMA memory in Intel driver
NTB: Use NUMA memory and DMA chan in transport
NTB: Rate limit ntb_qp_link_work
NTB: Add tool test client
NTB: Add ping pong test client
NTB: Add parameters for Intel SNB B2B addresses
NTB: Reset transport QP link stats on down
NTB: Do not advance transport RX on link down
NTB: Differentiate transport link down messages
NTB: Check the device ID to set errata flags
NTB: Enable link for Intel root port mode in probe
NTB: Read peer info from local SPAD in transport
NTB: Split ntb_hw_intel and ntb_transport drivers
...
that could have been waited for -rc2. Sending them now since I
was taking care of Peter's patch anyway.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJVmB5pAAoJEL/70l94x66DpLAH/A0p2HICsG5Qw3gnI3NxAmK4
YUvtMx0d67mFXPg0kuYRMO7C2Is6XHKtnmsX8oqkg3JTRFfn7XYqlwvrrK3Be08U
tGvhigneJTGDXwU74jyik+D6VLmyJP3CxEvXM3d9AFyy7Ro9Grxx0Ja8c9cmKGQE
esCwNAEJOcqaQMtNIix3WtXifOVFr40NZlbAawsMyxVw8LZK/K5maXyUTRDI57Qn
B1wbTN1KD847/0rLrit+8VlsGEZBorUgCFhueeYGy/7EdiY0bNkzhLWb4erlWnRq
ZlKzsLdfXmEg2CEepaHCm5jlLfIurgbLfoV1tzQ5jAuj/SHmUxq+k3lZZYTYA3w=
=vDKM
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Except for the preempt notifiers fix, these are all small bugfixes
that could have been waited for -rc2. Sending them now since I was
taking care of Peter's patch anyway"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: add hyper-v crash msrs values
KVM: x86: remove data variable from kvm_get_msr_common
KVM: s390: virtio-ccw: don't overwrite config space values
KVM: x86: keep track of LVT0 changes under APICv
KVM: x86: properly restore LVT0
KVM: x86: make vapics_in_nmi_mode atomic
sched, preempt_notifier: separate notifier registration from static_key inc/dec
Change ntb_hw_intel to use the new NTB hardware abstraction layer.
Split ntb_transport into its own driver. Change it to use the new NTB
hardware abstraction layer.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Abstract the NTB device behind a programming interface, so that it can
support different hardware and client drivers.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Pull irq update from Thomas Gleixner:
"The last update for 4.2 is just moving a macro from a local header to
the global one, so it can be used in architecture code as well.
Cleanup of the now empty local header is 4.3 material"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: Move IRQCHIP_DECLARE macro to include/linux/irqchip.h
Pull scheduler fixes from Ingo Molnar:
"Debug info and other statistics fixes and related enhancements"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/numa: Fix numa balancing stats in /proc/pid/sched
sched/numa: Show numa_group ID in /proc/sched_debug task listings
sched/debug: Move print_cfs_rq() declaration to kernel/sched/sched.h
sched/stat: Expose /proc/pid/schedstat if CONFIG_SCHED_INFO=y
sched/stat: Simplify the sched_info accounting dependency
Pull second round of input updates from Dmitry Torokhov:
"A new driver for Weida wdt87xx touch controllers, and a bunch of
fixups for other drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: wdt87xx_i2c - add a scaling factor for TOUCH_MAJOR event
Input: wdt87xx_i2c - remove stray newline in diagnostic message
Input: arc_ps2 - add HAS_IOMEM dependency
Input: wdt87xx_i2c - fix format warning
Input: improve parsing OF parameters for touchscreens
Input: edt-ft5x06 - mark as direct input device
Input: use for_each_set_bit() where appropriate
Input: add a driver for wdt87xx touchscreen controller
Input: axp20x-pek - fix reporting button state as inverted
Input: xpad - re-send LED command on present event
Input: xpad - set the LEDs properly on XBox Wireless controllers
Input: imx_keypad - check for clk_prepare_enable() error
Currently print_cfs_rq() is declared in include/linux/sched.h.
However it's not used outside kernel/sched. Hence move the
declaration to kernel/sched/sched.h
Also some functions are only available for CONFIG_SCHED_DEBUG=y.
Hence move the declarations to within the #ifdef.
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Iulia Manda <iulia.manda21@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1435252903-1081-2-git-send-email-srikar@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
I have just queued some more bugfix patches today but none fix regressions and
none are related to these ones, so it looks like a good time for a merge for
-rc1.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJVk7JOAAoJECgfDbjSjVRpHgEIAKrgLd7gIQ8lO+LCYqne6WLQ
Ky8rOUnaxX4gD5N0akhfJFr/m/yIyAfk9+ALZZUo3kfuFiEsT2rn32iK/2Gj8pcu
HFoAWhS+7b/ZsfpHRPtv/zVD3q4c3nWsWpfWK09J+4t0UJuC8fmGMoBzkS0kjZtd
dQnHlJi5+1u4ch2x9sYYeVx7GOJ8a1W0q7cWJnWdOffWLEP9/zB8fgRVLFp/7AAd
uBlza93RU81wS7q5tSUph6ESPqt2yu357e//4jnWjVx5EUXDRBL3A/T1JpC1qYSn
WV2Gv14x+LVz2G8WgGmwfMq1H9Dvd/OzNToX5R8SIRx6Rh5L6gxFQjqt4dclGj8=
=nKap
-----END PGP SIGNATURE-----
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost cross endian support from Michael Tsirkin:
"I have just queued some more bugfix patches today but none fix
regressions and none are related to these ones, so it looks like a
good time for a merge for -rc1.
The motivation for this is support for legacy BE guests on the new LE
hosts. There are two redeeming properties that made me merge this:
- It's a trivial amount of code: since we wrap host/guest accesses
anyway, almost all of it is well hidden from drivers.
- Sane platforms would never set flags like VHOST_CROSS_ENDIAN_LEGACY,
and when it's clear, there's zero overhead (as some point it was
tested by compiling with and without the patches, got the same
stripped binary).
Maybe we could create a Kconfig symbol to enforce the second point:
prevent people from enabling it eg on x86. I will look into this"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio-pci: alloc only resources actually used.
macvtap/tun: cross-endian support for little-endian hosts
vhost: cross-endian support for legacy devices
virtio: add explicit big-endian support to memory accessors
vhost: introduce vhost_is_little_endian() helper
vringh: introduce vringh_is_little_endian() helper
macvtap: introduce macvtap_is_little_endian() helper
tun: add tun_is_little_endian() helper
virtio: introduce virtio_is_little_endian() helper
Pull user namespace updates from Eric Biederman:
"Long ago and far away when user namespaces where young it was realized
that allowing fresh mounts of proc and sysfs with only user namespace
permissions could violate the basic rule that only root gets to decide
if proc or sysfs should be mounted at all.
Some hacks were put in place to reduce the worst of the damage could
be done, and the common sense rule was adopted that fresh mounts of
proc and sysfs should allow no more than bind mounts of proc and
sysfs. Unfortunately that rule has not been fully enforced.
There are two kinds of gaps in that enforcement. Only filesystems
mounted on empty directories of proc and sysfs should be ignored but
the test for empty directories was insufficient. So in my tree
directories on proc, sysctl and sysfs that will always be empty are
created specially. Every other technique is imperfect as an ordinary
directory can have entries added even after a readdir returns and
shows that the directory is empty. Special creation of directories
for mount points makes the code in the kernel a smidge clearer about
it's purpose. I asked container developers from the various container
projects to help test this and no holes were found in the set of mount
points on proc and sysfs that are created specially.
This set of changes also starts enforcing the mount flags of fresh
mounts of proc and sysfs are consistent with the existing mount of
proc and sysfs. I expected this to be the boring part of the work but
unfortunately unprivileged userspace winds up mounting fresh copies of
proc and sysfs with noexec and nosuid clear when root set those flags
on the previous mount of proc and sysfs. So for now only the atime,
read-only and nodev attributes which userspace happens to keep
consistent are enforced. Dealing with the noexec and nosuid
attributes remains for another time.
This set of changes also addresses an issue with how open file
descriptors from /proc/<pid>/ns/* are displayed. Recently readlink of
/proc/<pid>/fd has been triggering a WARN_ON that has not been
meaningful since it was added (as all of the code in the kernel was
converted) and is not now actively wrong.
There is also a short list of issues that have not been fixed yet that
I will mention briefly.
It is possible to rename a directory from below to above a bind mount.
At which point any directory pointers below the renamed directory can
be walked up to the root directory of the filesystem. With user
namespaces enabled a bind mount of the bind mount can be created
allowing the user to pick a directory whose children they can rename
to outside of the bind mount. This is challenging to fix and doubly
so because all obvious solutions must touch code that is in the
performance part of pathname resolution.
As mentioned above there is also a question of how to ensure that
developers by accident or with purpose do not introduce exectuable
files on sysfs and proc and in doing so introduce security regressions
in the current userspace that will not be immediately obvious and as
such are likely to require breaking userspace in painful ways once
they are recognized"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
vfs: Remove incorrect debugging WARN in prepend_path
mnt: Update fs_fully_visible to test for permanently empty directories
sysfs: Create mountpoints with sysfs_create_mount_point
sysfs: Add support for permanently empty directories to serve as mount points.
kernfs: Add support for always empty directories.
proc: Allow creating permanently empty directories that serve as mount points
sysctl: Allow creating permanently empty directories that serve as mountpoints.
fs: Add helper functions for permanently empty directories.
vfs: Ignore unlocked mounts in fs_fully_visible
mnt: Modify fs_fully_visible to deal with locked ro nodev and atime
mnt: Refactor the logic for mounting sysfs and proc in a user namespace
- new remoteproc TI Wakeup M3 driver from Dave Gerlach
- remoteproc core support for TI's Wakeup M3 driver from both Dave and Suman
- tiny remoteproc build fix from myself
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=OM/v
-----END PGP SIGNATURE-----
Merge tag 'remoteproc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
Pull remoteproc updates from Ohad Ben-Cohen:
- remoteproc fixes/cleanups from Suman Anna
- new remoteproc TI Wakeup M3 driver from Dave Gerlach
- remoteproc core support for TI's Wakeup M3 driver from both Dave and Suman
- tiny remoteproc build fix from myself
* tag 'remoteproc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
remoteproc: fix !CONFIG_OF build breakage
remoteproc/wkup_m3: add a remoteproc driver for TI Wakeup M3
Documentation: dt: add bindings for TI Wakeup M3 processor
remoteproc: add a rproc ops for performing address translation
remoteproc: introduce rproc_get_by_phandle API
remoteproc: fix various checkpatch warnings
remoteproc/davinci: fix quoted split string checkpatch warning
remoteproc/ste: add blank lines after declarations
- OMAP hwspinlock DT support from Suman Anna
- QCOM hwspinlock DT support from Bjorn Andersson
- a new CSR atlas7 hwspinlock driver from Wei Chen
- CSR atlas7 hwspinlock DT binding document from Wei Chen
- a tiny QCOM hwspinlock driver fix from Bjorn Andersson
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=2HLz
-----END PGP SIGNATURE-----
Merge tag 'hwspinlock-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock
Pull hwspinlock updates from Ohad Ben-Cohen:
- hwspinlock core DT support from Suman Anna
- OMAP hwspinlock DT support from Suman Anna
- QCOM hwspinlock DT support from Bjorn Andersson
- a new CSR atlas7 hwspinlock driver from Wei Chen
- CSR atlas7 hwspinlock DT binding document from Wei Chen
- a tiny QCOM hwspinlock driver fix from Bjorn Andersson
* tag 'hwspinlock-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock:
hwspinlock: qcom: Correct msb in regmap_field
DT: hwspinlock: add the CSR atlas7 hwspinlock bindings document
hwspinlock: add a CSR atlas7 driver
hwspinlock: qcom: Add support for Qualcomm HW Mutex block
DT: hwspinlock: Add binding documentation for Qualcomm hwmutex
hwspinlock/omap: add support for dt nodes
Documentation: dt: add the omap hwspinlock bindings document
hwspinlock/core: add device tree support
Documentation: dt: add common bindings for hwspinlock
Pull block fixes from Jens Axboe:
"Mainly sending this off now for the writeback fixes, since they fix a
real regression introduced with the cgroup writeback changes. The
NVMe fix could wait for next pull for this series, but it's simple
enough that we might as well include it.
This contains:
- two cgroup writeback fixes from Tejun, fixing a user reported issue
with luks crypt devices hanging when being closed.
- NVMe error cleanup fix from Jon Derrick, fixing a case where we'd
attempt to free an unregistered IRQ"
* 'for-linus' of git://git.kernel.dk/linux-block:
NVMe: Fix irq freeing when queue_request_irq fails
writeback: don't drain bdi_writeback_congested on bdi destruction
writeback: don't embed root bdi_writeback_congested in bdi_writeback
Commit 1cde2930e1 ("sched/preempt: Add static_key() to preempt_notifiers")
had two problems. First, the preempt-notifier API needs to sleep with the
addition of the static_key, we do however need to hold off preemption
while modifying the preempt notifier list, otherwise a preemption could
observe an inconsistent list state. KVM correctly registers and
unregisters preempt notifiers with preemption disabled, so the sleep
caused dmesg splats.
Second, KVM registers and unregisters preemption notifiers very often
(in vcpu_load/vcpu_put). With a single uniprocessor guest the static key
would move between 0 and 1 continuously, hitting the slow path on every
userspace exit.
To fix this, wrap the static_key inc/dec in a new API, and call it from
KVM.
Fixes: 1cde2930e1 ("sched/preempt: Add static_key() to preempt_notifiers")
Reported-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Reported-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
