50431 Commits

Author SHA1 Message Date
c070d6ba25 Actions Semi ARM SoC for v4.13 #2
This adds SMP code to bring up the remaining S500 CPU cores
 by reusing a helper factored out of the SPS power domains driver.
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Merge tag 'actions-arm-soc+sps-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/soc

Pull "Actions Semi ARM SoC for v4.13 #2" from Andreas Färber:

This adds SMP code to bring up the remaining S500 CPU cores
by reusing a helper factored out of the SPS power domains driver.

* tag 'actions-arm-soc+sps-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
  ARM: owl: smp: Implement SPS power-gating for CPU2 and CPU3
  soc: actions: owl-sps: Factor out owl_sps_set_pg() for power-gating
  soc: actions: Add Owl SPS
  dt-bindings: power: Add Owl SPS power domains
2017-06-29 17:33:41 +02:00
a3cc999959 multi_v7_defconfig: Enable OMAP MTD and DM816 AHCI
A wide variety of TI platforms support NAND via the
CONFIG_MTD_NAND_OMAP2 driver (and related BCH options), so enable this.
In addition, multi_v7_defconfig supports the dm8168-evm and that
supports root being on a SATA drive, so build the DM816 AHCI driver into
the resulting kernel as well.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mihail Grigorov <michael.grigorov@konsulko.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-06-29 17:22:18 +02:00
0c6cda5839 Actions Semi ARM based SoC DT for v4.13
This adds an initial DT for the S500 SoC and a devboard based on it.
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Merge tag 'actions-arm-dt-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/dt

Pull "Actions Semi ARM based SoC DT for v4.13" from Andreas Färber:

This adds an initial DT for the S500 SoC and a devboard based on it.

* tag 'actions-arm-dt-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
  ARM: dts: owl-s500: Add SPS node
  ARM: dts: owl-s500: Set CPU enable-method
  dt-bindings: arm: cpus: Add S500 enable-method
  ARM: dts: Add Actions Semi S500 and LeMaker Guitar
  dt-bindings: arm: Document Actions Semi S900
  dt-bindings: timer: Document Owl timer
  dt-bindings: arm: Document Actions Semi S500
  dt-bindings: Add vendor prefix for Actions Semi
2017-06-29 17:09:58 +02:00
dc366b16a2 Actions Semi ARM SoC for v4.13
This adds a Kconfig symbol and mach-actions with board and SMP code,
 plus a MAINTAINERS entry.
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Merge tag 'actions-arm-soc-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/soc

Pull "Actions Semi ARM SoC for v4.13" from Andreas Färber:

This adds a Kconfig symbol and mach-actions with board and SMP code,
plus a MAINTAINERS entry.

* tag 'actions-arm-soc-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
  MAINTAINERS: Update Actions Semi section with SPS
  ARM: owl: Implement CPU enable-method for S500
  MAINTAINERS: Add Actions Semi Owl section
  ARM: Prepare Actions Semi S500
2017-06-29 17:05:13 +02:00
9f4cfffb2d Qualcomm ARM Based defconfig Updates for v4.13 - Part 2
* Enable RPMSG_QCOM_SMD to get boards working again
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Merge tag 'qcom-defconfig-for-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/defconfig

Pull "Qualcomm ARM Based defconfig Updates for v4.13 - Part 2" from Andy Gross:

* Enable RPMSG_QCOM_SMD to get boards working again

* tag 'qcom-defconfig-for-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  ARM: qcom_defconfig: enable RPMSG_QCOM_SMD
2017-06-29 17:03:21 +02:00
1964babb26 Amlogic 32-bit DT changes for v4.13 (round 2)
- greatly expands DT clock support for meson8b
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Merge tag 'amlogic-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt

Merge "Amlogic 32-bit DT changes for v4.13 (round 2)" from Kevin Hilman:

- greatly expands DT clock support for meson8b

* tag 'amlogic-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: (22 commits)
  ARM: dts: meson: use the real ethernet clock on Meson8 and Meson8b
  ARM: dts: meson8b: add the SCU device node
  ARM: dts: meson: add USB support on Meson8 and Meson8b
  ARM: dts: meson: add the hardware random number generator
  ARM: dts: meson8: add reserved memory zones
  ARM: dts: meson: add the SAR ADC
  ARM: dts: meson8: add the pins for the SDIO controller
  ARM: dts: meson8: add the PWM_E and PWM_F pins
  ARM: dts: meson: use GIC_SPI and IRQ_TYPE_EDGE_RISING macros
  ARM: dts: meson: use C preprocessor friendly include syntax
  ARM: dts: meson8: fix the IR receiver pins
  clk: meson8b: export the ethernet gate clock
  clk: meson8b: export the USB clocks
  clk: meson8b: export the gate clock for the HW random number generator
  clk: meson8b: export the SDIO clock
  clk: meson8b: export the SAR ADC clocks
  clk: meson-gxbb: un-export the CPU clock
  clk: meson-gxbb: expose UART clocks
  clk: meson-gxbb: expose SPICC gate
  clk: meson-gxbb: expose spdif master clock
  ...
2017-06-29 16:58:33 +02:00
6183061967 Linux 4.12-rc7
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Merge tag 'v4.12-rc7' into devel

Linux 4.12-rc7
2017-06-29 14:27:39 +02:00
97ad2bdcbe ARM/PCI: Convert PCI scan API to pci_scan_root_bus_bridge()
The introduction of pci_scan_root_bus_bridge() provides a PCI core API to
scan a PCI root bus backed by an already initialized struct pci_host_bridge
object, which simplifies the bus scan interface and makes the PCI scan root
bus interface easier to generalize as members are added to the struct
pci_host_bridge.

Convert ARM bios32 code to pci_scan_root_bus_bridge() to improve the PCI
root bus scanning interface.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: fold in warning fix from Arnd Bergmann <arnd@arndb.de>:
http://lkml.kernel.org/r/20170621215323.3921382-1-arnd@arndb.de]
[bhelgaas: set bridge->ops for mv78xx0]
[bhelgaas: fold in fixes from Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>:
http://lkml.kernel.org/r/20170701135457.GB8977@red-moon]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>
2017-06-28 15:13:55 -05:00
64273a61b2 arm: implement ->dma_supported instead of ->set_dma_mask
Same behavior, less code duplication.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-28 06:54:49 -07:00
418a7a7e4f arm: remove arch specific dma_supported implementation
And instead wire it up as method for all the dma_map_ops instances.

Note that the code seems a little fishy for dmabounce and iommu, but
for now I'd like to preserve the existing behavior 1:1.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-28 06:54:45 -07:00
9eef8b8cc2 arm: implement ->mapping_error
DMA_ERROR_CODE is going to go away, so don't rely on it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-28 06:54:36 -07:00
3c2bfbaadf Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Three more fixes:

   - Fix the previous fix merged in the last pull for the Thumb2
     decompressor.

   - A fix from Vladimir to correctly identify the V7M cache type.

   - The optimised 3G vmsplit case does not work with LPAE, so don't
     allow this to be selected for LPAE configurations"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8682/1: V7M: Set cacheid iff DminLine or IminLine is nonzero
  ARM: 8681/1: make VMSPLIT_3G_OPT depends on !ARM_LPAE
  ARM: 8680/1: boot/compressed: fix inappropriate Thumb2 mnemonic for __nop
2017-06-27 08:56:52 -07:00
cd83935be8 ARM: 8684/1: NOMMU: Remove unused KTHREAD_SIZE definition
I didn't find any use of this macro in the current kernel tree (with git
grep). KTHREAD_SIZE is no longer used for a very very long time. So
let's remove this definition.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-06-27 14:58:10 +01:00
3edb1dd13c Merge branch 'aarch64/for-next/ras-apei' into aarch64/for-next/core
Merge in arm64 ACPI RAS support (APEI/GHES) from Tyler Baicar.
2017-06-26 10:54:27 +01:00
7f794788db ARM: qcom_defconfig: enable RPMSG_QCOM_SMD
As of commit 5052de8deff56, QCOM_SMD_RPM and various other config
options enabled in the qcom_defconfig depends on the RPMSG. If
QCOM_SMD_RPM config option is not selected it disables the
REGULATOR_QCOM_SMD_RPM and other essential config options.

Signed-off-by: Bhushan Shah <bshah@kde.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-06-23 13:29:39 -05:00
b6a0e18ca6 ARM: owl: smp: Implement SPS power-gating for CPU2 and CPU3
Bring up the two remaining CPUs by calling into PM domain code.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2017-06-23 18:01:35 +02:00
30e3224e4a SoCFPGA DTS updates for v4.13
- Fix clocks node the EMACs
 - VINING board updtes
 	- Remove I2C EEPROMs and LED node
 	- Add QSPI device
 	- Add 2nd ethernet alias
 - Add 'clock-frequency' binding for i2c node
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Merge tag 'socfpga_dts_for_v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/dt

Pull "SoCFPGA DTS updates for v4.13" from Dinh Nguyen:

- Fix clocks node the EMACs
- VINING board updtes
	- Remove I2C EEPROMs and LED node
	- Add QSPI device
	- Add 2nd ethernet alias
- Add 'clock-frequency' binding for i2c node

* tag 'socfpga_dts_for_v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  ARM: dts: socfpga: set the i2c frequency
  ARM: dts: socfpga: Add second ethernet alias to VINING FPGA
  ARM: dts: socfpga: Drop LED node from VINING FPGA
  ARM: dts: socfpga: Remove I2C EEPROMs from VINING FPGA
  ARM: dts: socfpga: Enable QSPI support on VINING FPGA
  ARM: dts: socfpga: Fix the ethernet clock phandle
2017-06-23 16:44:36 +02:00
3c56909ec2 ARM: dts: socfpga: set the i2c frequency
Use 'clock-frequency' binding for the i2c node that will put the I2C driver
into the standard operating mode. 'speed-mode' was not a valid binding for
the I2C driver, remove it.

Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2017-06-23 09:29:13 -05:00
5b5ada57e4 ARM: dts: socfpga: Add second ethernet alias to VINING FPGA
Add DT alias for the second ethernet present on mainboard rev 1.10.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2017-06-23 09:29:12 -05:00
3ca65aa18f ARM: dts: socfpga: Drop LED node from VINING FPGA
Drop the LED node from VINing FPGA DT because the LED wiring is
different on each mainboard revision. This wiring is therefore
handled in mainboard DT Overlays.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2017-06-23 09:29:11 -05:00
ff3d90decb ARM: dts: socfpga: Remove I2C EEPROMs from VINING FPGA
Remove the EEPROMs attached to the I2C expander ports which
lead to the backplane slots from the main VIN|ING DTS file.
These EEPROMs are bound using separate DTO files, which lets
us handle both two-slot and six-slot configuration of the
backplane.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2017-06-23 09:29:10 -05:00
79528279c0 ARM: dts: socfpga: Enable QSPI support on VINING FPGA
Enable the QSPI node and add the flash chips.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2017-06-23 09:29:09 -05:00
b8d9b3e407 ARM: dts: socfpga: Fix the ethernet clock phandle
The ethernet block clock phandle must point to the clock node which
represents the clock which directly supply the ethernet block. This
is emac_x_clk , not emacx_clk , so fix this.

From: Pavel Machek <pavel@denx.de>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2017-06-23 09:29:08 -05:00
b1cb5e6694 SoCFPGA updates for v4.13
- Increase number of available GPIOs in Kconfig
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Merge tag 'socfpga_updates_for_v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/soc

Pull "SoCFPGA updates for v4.13" from Dinh Nguyen:

- Increase number of available GPIOs in Kconfig

* tag 'socfpga_updates_for_v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  ARM: socfpga: Increase max number of GPIOs
2017-06-23 14:36:38 +02:00
f61bbd39b4 This device-tree pxa update brings :
- cpu operating points renaming from Viresh
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Merge tag 'pxa-dt-4.13' of https://github.com/rjarzmik/linux into next/dt

Pull "pxa-dt for v4.13" from Robert Jarzmik:

This device-tree pxa update brings :
 - cpu operating points renaming from Viresh

* tag 'pxa-dt-4.13' of https://github.com/rjarzmik/linux:
  ARM: pxa: Use - instead of @ for DT OPP entries
2017-06-23 12:34:53 +02:00
41b068189d Samsung DeviceTree update for v4.13, part two:
1. Add needed property for CEC on Odroid U3,
 2. Fix reset GPIO polarity on Rinato.
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Merge tag 'samsung-dt-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt

Pull "Samsung DeviceTree update for v4.13, part two" from Krzysztof Kozłowski:
1. Add needed property for CEC on Odroid U3,
2. Fix reset GPIO polarity on Rinato.

* tag 'samsung-dt-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: exynos: Fix polarity of panel reset gpio in Rinato
  ARM: dts: exynos: add needs-hpd to &hdmicec for Odroid-U3
2017-06-23 12:15:05 +02:00
a4857add27 ARM defconfig cleanup:
1. Remove old Kconfig options from all ARM configs,
 2. Update Samsung defconfigs to bring back options over time got disabled
    for some reason (configs were not updated along with the code),
 3. Save defconfigs for Samsung.
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Merge tag 'samsung-defconfig-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/defconfig

Pull "ARM defconfig cleanup" from Krzysztof Kozłowski:

1. Remove old Kconfig options from all ARM configs,
2. Update Samsung defconfigs to bring back options over time got disabled
   for some reason (configs were not updated along with the code),
3. Save defconfigs for Samsung.

* tag 'samsung-defconfig-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: tct_hammer_defconfig: Save defconfig
  ARM: s5pv210_defconfig: Save defconfig
  ARM: s3c6400_defconfig: Save defconfig
  ARM: mini2440_defconfig: Save defconfig
  ARM: s3c2410_defconfig: Save defconfig
  ARM: exynos_defconfig: Save defconfig
  ARM: s5pv210_defconfig: Bring back lost (but wanted) options
  ARM: s3c6400_defconfig: Bring back lost (but wanted) options
  ARM: s3c2410_defconfig: Bring back lost (but wanted) options
  ARM: tct_hammer_defconfig: Bring back lost (but wanted) options
  ARM: mini2440_defconfig: Bring back lost (but wanted) options
  ARM: defconfig: samsung: Re-order entries to match savedefconfig
  ARM: defconfig: Cleanup from old Kconfig options
2017-06-23 09:57:59 +02:00
621f48e40e arm/arm64: KVM: add guest SEA support
Currently external aborts are unsupported by the guest abort
handling. Add handling for SEAs so that the host kernel reports
SEAs which occur in the guest kernel.

When an SEA occurs in the guest kernel, the guest exits and is
routed to kvm_handle_guest_abort(). Prior to this patch, a print
message of an unsupported FSC would be printed and nothing else
would happen. With this patch, the code gets routed to the APEI
handling of SEAs in the host kernel to report the SEA information.

Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-06-22 18:22:05 +01:00
a4eb8b9935 Merge branch 'linus' into x86/mm, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-22 10:57:28 +02:00
ae3f415173 kbuild: replace genhdr-y with generated-y
Originally, generated-y and genhdr-y had different meaning, like
follows:

- generated-y: generated headers (other than asm-generic wrappers)
- header-y   : headers to be exported
- genhdr-y   : generated headers to be exported (generated-y + header-y)

Since commit fcc8487d477a ("uapi: export all headers under uapi
directories"), headers under UAPI directories are all exported.
So, there is no more difference between generated-y and genhdr-y.

We see two users of genhdr-y, arch/{arm,x86}/include/uapi/asm/Kbuild.
They generate some headers in arch/{arm,x86}/include/generated/uapi/asm
directories, which are obviously exported.

Replace them with generated-y, and abolish genhdr-y.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
2017-06-22 08:55:21 +09:00
172067e0bc ARM: owl: Implement CPU enable-method for S500
Allow to bring up CPU1.

Based on LeMaker linux-actions tree.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2017-06-21 18:17:39 +02:00
6bb8536cba ARM: Prepare Actions Semi S500
Add ARCH_ACTIONS and mach-actions/owl.c for "actions,s500".

Signed-off-by: Andreas Färber <afaerber@suse.de>
2017-06-21 18:08:41 +02:00
139358be24 ARM: socfpga: Increase max number of GPIOs
Increase the maximum number of GPIOs on SoCFPGA as this platform
can have many GPIO controllers in the FPGA part.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2017-06-21 10:16:02 -05:00
a870271968 ARM: pxa: Use - instead of @ for DT OPP entries
Compiling the DT file with W=1, DTC warns like follows:

Warning (unit_address_vs_reg): Node /opp_table0/opp@1000000000 has a
unit name, but no reg property

Fix this by replacing '@' with '-' as the OPP nodes will never have a
"reg" property.

Reported-by: Krzysztof Kozlowski <krzk@kernel.org>
Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2017-06-21 14:09:52 +02:00
280e87e98c ARM: 8683/1: ARM32: Support mremap() for sigpage/vDSO
CRIU restores application mappings on the same place where they
were before Checkpoint. That means, that we need to move vDSO
and sigpage during restore on exactly the same place where
they were before C/R.

Make mremap() code update mm->context.{sigpage,vdso} pointers
during VMA move. Sigpage is used for landing after handling
a signal - if the pointer is not updated during moving, the
application might crash on any signal after mremap().

vDSO pointer on ARM32 is used only for setting auxv at this moment,
update it during mremap() in case of future usage.

Without those updates, current work of CRIU on ARM32 is not reliable.
Historically, we error Checkpointing if we find vDSO page on ARM32
and suggest user to disable CONFIG_VDSO.
But that's not correct - it goes from x86 where signal processing
is ended in vDSO blob. For arm32 it's sigpage, which is not disabled
with `CONFIG_VDSO=n'.

Looks like C/R was working by luck - because userspace on ARM32 at
this moment always sets SA_RESTORER.

Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Acked-by: Andy Lutomirski <luto@amacapital.net>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Will Deacon <will.deacon@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@virtuozzo.com>
Cc: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-06-21 13:02:58 +01:00
f0cd9ae5d0 Merge branch 'timers/urgent' into timers/core
Pick up dependent changes.
2017-06-21 09:07:52 +02:00
902b319413 Merge branch 'WIP.sched/core' into sched/core
Conflicts:
	kernel/sched/Makefile

Pick up the waitqueue related renames - it didn't get much feedback,
so it appears to be uncontroversial. Famous last words? ;-)

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-20 12:28:21 +02:00
1b3b22507e ARM/hw_breakpoint: Fix possible recursive locking for arch_hw_breakpoint_init
Recent change to use cpuhp_setup_state_cpuslocked() with commit
fe2a5cd8aa03 ("ARM/hw_breakpoint: Use cpuhp_setup_state_cpuslocked()")
missed to change the related paired cpuhp_remove_state_nocalls_cpuslocked().

Now if arch_hw_breakpoint_init() fails, we get "WARNING: possible recursive
locking detected" on the exit path.

Fixes: fe2a5cd8aa03 ("ARM/hw_breakpoint: Use cpuhp_setup_state_cpuslocked()")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-omap@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20170616082238.15553-1-tony@atomide.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-06-20 12:25:22 +02:00
dceb1a6819 xen-swiotlb: consolidate xen_swiotlb_dma_ops
ARM and x86 had duplicated versions of the dma_ops structure, the
only difference is that x86 hasn't wired up the set_dma_mask,
mmap, and get_sgtable ops yet.  On x86 all of them are identical
to the generic version, so they aren't needed but harmless.

All the symbols used only for xen_swiotlb_dma_ops can now be marked
static as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2017-06-20 11:12:59 +02:00
ab723a6d9e ARM: dts: omap3-overo: Remove "vqmmc-supply" property from MMC dt node
commit 94647a30124e2c7 ("ARM: dts: omap3-overo: Enable WiFi/BT combo")
while enabling WiFi/BT combo added regulator to trigger the nReset
signal of the Bluetooth module in vqmmc-supply. However BT should be
handled by UART. Moreover "vqmmc" is not a defined binding for
omap_hsmmc. While "vqmmc" in mmc2 hasn't caused any issues so far,
mmc2 will start to mis-behave once omap_hsmmc defines "vqmmc"
binding.

Remove "vqmmc-supply" property in mmc2 here.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-06-20 10:30:40 +02:00
868772d89d ARM: OMAP2+: DMA: Add slave map entries for 24xx external request lines
The external request lines are used by tusb6010 on OMAP24xx platforms.
Update the map so the driver can use dmaengine API to request the DMA
channel. At the same time add temporary map containing only the external
DMA request numbers for DT booted case on omap24xx since the tusb6010 stack
is not yet supports DT boot.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-20 11:45:01 +08:00
740f6beb57 ARM: dts: owl-s500: Add SPS node
Add Smart Power System node for PM domains.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2017-06-19 18:36:44 +02:00
ad90c2bc1e ARM: dts: owl-s500: Set CPU enable-method
Use a custom S500 enable-method for all CPUs.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2017-06-19 18:36:33 +02:00
1be7107fbe mm: larger stack guard gap, between vmas
Stack guard page is a useful feature to reduce a risk of stack smashing
into a different mapping. We have been using a single page gap which
is sufficient to prevent having stack adjacent to a different mapping.
But this seems to be insufficient in the light of the stack usage in
userspace. E.g. glibc uses as large as 64kB alloca() in many commonly
used functions. Others use constructs liks gid_t buffer[NGROUPS_MAX]
which is 256kB or stack strings with MAX_ARG_STRLEN.

This will become especially dangerous for suid binaries and the default
no limit for the stack size limit because those applications can be
tricked to consume a large portion of the stack and a single glibc call
could jump over the guard page. These attacks are not theoretical,
unfortunatelly.

Make those attacks less probable by increasing the stack guard gap
to 1MB (on systems with 4k pages; but make it depend on the page size
because systems with larger base pages might cap stack allocations in
the PAGE_SIZE units) which should cover larger alloca() and VLA stack
allocations. It is obviously not a full fix because the problem is
somehow inherent, but it should reduce attack space a lot.

One could argue that the gap size should be configurable from userspace,
but that can be done later when somebody finds that the new 1MB is wrong
for some special case applications.  For now, add a kernel command line
option (stack_guard_gap) to specify the stack gap size (in page units).

Implementation wise, first delete all the old code for stack guard page:
because although we could get away with accounting one extra page in a
stack vma, accounting a larger gap can break userspace - case in point,
a program run with "ulimit -S -v 20000" failed when the 1MB gap was
counted for RLIMIT_AS; similar problems could come with RLIMIT_MLOCK
and strict non-overcommit mode.

Instead of keeping gap inside the stack vma, maintain the stack guard
gap as a gap between vmas: using vm_start_gap() in place of vm_start
(or vm_end_gap() in place of vm_end if VM_GROWSUP) in just those few
places which need to respect the gap - mainly arch_get_unmapped_area(),
and and the vma tree's subtree_gap support for that.

Original-patch-by: Oleg Nesterov <oleg@redhat.com>
Original-patch-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-19 21:50:20 +08:00
1132d5e7b6 ARM: SoC fixes
Stream of fixes has slowed down, only a few this week:
 
  - Some DT fixes for Allwinner platforms, and addition of a clock to
    the R_CCU clock controller that had been missed.
  - A couple of small DT fixes for am335x-sl50.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Stream of fixes has slowed down, only a few this week:

   - Some DT fixes for Allwinner platforms, and addition of a clock to
     the R_CCU clock controller that had been missed.

   - A couple of small DT fixes for am335x-sl50"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: allwinner: a64: Add PLL_PERIPH0 clock to the R_CCU
  ARM: sunxi: h3-h5: Add PLL_PERIPH0 clock to the R_CCU
  ARM: dts: am335x-sl50: Fix cannot claim requested pins for spi0
  ARM: dts: am335x-sl50: Fix card detect pin for mmc1
  arm64: allwinner: h5: Remove syslink to shared DTSI
  ARM: sunxi: h3/h5: fix the compatible of R_CCU
2017-06-19 16:50:09 +08:00
17bc093e18 Fixes for 4.12:
Fix two compilation issues
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Merge tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/soc

Bring in the fixes branch to avoid a merge conflict between new SoC options and
the build fix adding CONFIG_AMR_CPU_SUSPEND.

Fixes for 4.12:

Fix two compilation issues

* tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  ARM: at91: select CONFIG_ARM_CPU_SUSPEND
  memory: atmel-ebi: mark PM ops as __maybe_unused

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-18 23:12:36 -07:00
125370a928 The i.MX defconfig updates for 4.13:
- Enable i.MX7 ADC driver support.
  - Enable THERMAL_WRITABLE_TRIPS, so that i.MX thermal driver can set
    trip points for testing.
  - CONFIG_DEBUG_FS gets lost by accident because of a change around
    CONFIG_RCU_TRACE.  Re-enable it explicitly.
  - Enable MXS LRADC driver and CONFIG_CGROUPS for mxs_defconfig.
  - Enable more common cpufreq governors to help test cpufreq driver.
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Merge tag 'imx-defconfig-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/defconfig

The i.MX defconfig updates for 4.13:
 - Enable i.MX7 ADC driver support.
 - Enable THERMAL_WRITABLE_TRIPS, so that i.MX thermal driver can set
   trip points for testing.
 - CONFIG_DEBUG_FS gets lost by accident because of a change around
   CONFIG_RCU_TRACE.  Re-enable it explicitly.
 - Enable MXS LRADC driver and CONFIG_CGROUPS for mxs_defconfig.
 - Enable more common cpufreq governors to help test cpufreq driver.

* tag 'imx-defconfig-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx_v6_v7_defconfig: Select CONFIG_IMX7D_ADC
  ARM: imx_v6_v7_defconfig: Set THERMAL_WRITABLE_TRIPS=y for testing
  ARM: imx_v6_v7_defconfig: Explicitly restore CONFIG_DEBUG_FS
  ARM: mxs_defconfig: Re-enable MXS LRADC
  ARM: mxs_defconfig: Enable CONFIG_CGROUPS
  ARM: imx_v6_v7_defconfig: Enable cpufreq governors

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-18 23:09:48 -07:00
2cb6115deb The i.MX device tree updates for 4.13:
- New board support: Gateworks Ventana GW5600, Technexion Pico i.MX7D
    Board.
  - A series from Alexandre Belloni to correct the vendor prefix for
    rv4162 compatible.
  - A patch-set from Andrey Smirnov ot enable PCIe support for i.MX7 and
    imx7d-sdb board.
  - Increase the SGTL5000 LRCLK pad strength to fix a random audio
    channel swapping seen on imx6qdl-wandboard and imx6qdl-colibri
    boards.
  - Clean up non-existing property 'enable-active-low' from fixed
    regulator device nodes.
  - Correct GPIO polarity for Ethernet PHY and PCI reset lines, even
    though device drivers do not use the polarity for now.
  - Add Wifi and Bluetooth support for imx7d-sdb board.
  - Adopt the i.MX6Q/DL DT to the new and more flexible GPC binding.
  - Update zii-rdu2 device tree source to use #include "..." for local
    inclusion.
  - A series from Philipp Zabel and Steve Longerbeam to enable video
    capture support for imx6qdl platforms.
  - A number of small random updates on various board support.
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Merge tag 'imx-dt-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt

The i.MX device tree updates for 4.13:
 - New board support: Gateworks Ventana GW5600, Technexion Pico i.MX7D
   Board.
 - A series from Alexandre Belloni to correct the vendor prefix for
   rv4162 compatible.
 - A patch-set from Andrey Smirnov ot enable PCIe support for i.MX7 and
   imx7d-sdb board.
 - Increase the SGTL5000 LRCLK pad strength to fix a random audio
   channel swapping seen on imx6qdl-wandboard and imx6qdl-colibri
   boards.
 - Clean up non-existing property 'enable-active-low' from fixed
   regulator device nodes.
 - Correct GPIO polarity for Ethernet PHY and PCI reset lines, even
   though device drivers do not use the polarity for now.
 - Add Wifi and Bluetooth support for imx7d-sdb board.
 - Adopt the i.MX6Q/DL DT to the new and more flexible GPC binding.
 - Update zii-rdu2 device tree source to use #include "..." for local
   inclusion.
 - A series from Philipp Zabel and Steve Longerbeam to enable video
   capture support for imx6qdl platforms.
 - A number of small random updates on various board support.

* tag 'imx-dt-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (47 commits)
  ARM: dts: imx6q-cm-fx6: add sdio wifi/bt nodes
  ARM: dts: ls1021a: update the clockgen node
  ARM: dts: imx6-sabreauto: add the ADV7180 video decoder
  ARM: dts: imx6-sabreauto: add pinctrl for gpt input capture
  ARM: dts: imx6-sabreauto: add reset-gpios property for max7310_b
  ARM: dts: imx6-sabreauto: create i2cmux for i2c3
  ARM: dts: imx6-sabresd: add OV5642 and OV5640 camera sensors
  ARM: dts: imx6-sabrelite: add OV5642 and OV5640 camera sensors
  ARM: dts: imx6qdl-sabrelite: remove erratum ERR006687 workaround
  ARM: dts: imx6qdl: add capture-subsystem device
  ARM: dts: imx6qdl: Add video multiplexers, mipi_csi, and their connections
  ARM: dts: imx6qdl: Add compatible, clocks, irqs to MIPI CSI-2 node
  ARM: dts: imx6qdl: add multiplexer controls
  ARM: dts: imx6: Fix PCI GPIO reset polarity
  ARM: dts: imx7d-sdb: Add Bluetooth support
  ARM: dts: imx7d-sdb: Add Wifi support
  ARM: dts: imx7d-sdb: Adjust the regulator nodes
  ARM: dts: imx: Fix Ethernet PHY reset polarity
  ARM: dts: imx7: Fix typo in watchdog pin name
  ARM: dts: vf610-zii: Add switch eeprom-length properties
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-18 23:06:36 -07:00
67a87a94f9 The i.MX SoC updates for 4.13:
- Select GPCv2 for i.MX7 SoCs to get imx-gpcv2 irqchip driver built
    for i.MX7 platforms by default.
  - A couple of patches from Leonard to add IMX6ULL cpu check and get
    suspend/resume work on IMX6ULL.
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Merge tag 'imx-soc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

The i.MX SoC updates for 4.13:
 - Select GPCv2 for i.MX7 SoCs to get imx-gpcv2 irqchip driver built
   for i.MX7 platforms by default.
 - A couple of patches from Leonard to add IMX6ULL cpu check and get
   suspend/resume work on IMX6ULL.

* tag 'imx-soc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx6ull: Make suspend/resume work like on 6ul
  ARM: imx: Add MXC_CPU_IMX6ULL and cpu_is_imx6ull
  ARM: imx: Select GPCv2 for i.MX7

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-18 23:06:06 -07:00
ae1d266305 mvebu dt for 4.13 (part 1)
- Add Linksys WRT3200ACM (Rango) support
 - Add PWM properties for gpio on Aramda XP and 38x
 - A couple of minor updates for the 98dx3236 and 98dx4251
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Merge tag 'mvebu-dt-4.13-1' of git://git.infradead.org/linux-mvebu into next/dt

mvebu dt for 4.13 (part 1)

- Add Linksys WRT3200ACM (Rango) support
- Add PWM properties for gpio on Aramda XP and 38x
- A couple of minor updates for the 98dx3236 and 98dx4251

* tag 'mvebu-dt-4.13-1' of git://git.infradead.org/linux-mvebu:
  ARM: dts: turris-omnia: Add generic compatible string for I2C EEPROM
  ARM: dts: mvebu: add support for Linksys WRT3200ACM (Rango)
  ARM: dts: armada-385-linksys: fixup button node names
  ARM: dts: armada-385-linksys: group pins in pinctrl
  ARM: dts: armada-385-linksys: partition layout is board specific
  ARM: dts: armada-385-linksys: use binary unit prefixes
  ARM: dts: armada-385-linksys: drop legacy DSA bindings
  ARM: dts: armada-385-linksys: usb3 label cleanup
  ARM: dts: armada-385-linksys: bm pools by label order
  ARM: dts: armada-385-linksys: drop redundant properties in dependants
  ARM: dts: armada-385-linksys: flatten dependants
  ARM: dts: armada-385-linksys: label nodes
  ARM: dts: armada-385-linksys: flatten dtsi
  ARM: dts: mvebu: disable the rtc on 98dx3236 SoC
  ARM: dts: mvebu: add missing interrupt to 98dx4251 switch
  ARM: dts: armada-xp: Use pwm-fan rather than gpio-fan
  ARM: dts: mvebu: Add PWM properties for armada-38x
  ARM: dts: mvebu: Add PWM properties to .dtsi files

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-18 22:58:00 -07:00