29136 Commits

Author SHA1 Message Date
Cédric Le Goater
9e84609e8c mtd: spi-nor: bindings for the Aspeed memory controllers
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
2017-02-10 13:54:54 +01:00
Wolfram Sang
465b2c4ab8 Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-4.11 2017-02-10 12:51:23 +01:00
Christopher Covington
38fd94b027 arm64: Work around Falkor erratum 1003
The Qualcomm Datacenter Technologies Falkor v1 CPU may allocate TLB entries
using an incorrect ASID when TTBRx_EL1 is being updated. When the erratum
is triggered, page table entries using the new translation table base
address (BADDR) will be allocated into the TLB using the old ASID. All
circumstances leading to the incorrect ASID being cached in the TLB arise
when software writes TTBRx_EL1[ASID] and TTBRx_EL1[BADDR], a memory
operation is in the process of performing a translation using the specific
TTBRx_EL1 being written, and the memory operation uses a translation table
descriptor designated as non-global. EL2 and EL3 code changing the EL1&0
ASID is not subject to this erratum because hardware is prohibited from
performing translations from an out-of-context translation regime.

Consider the following pseudo code.

  write new BADDR and ASID values to TTBRx_EL1

Replacing the above sequence with the one below will ensure that no TLB
entries with an incorrect ASID are used by software.

  write reserved value to TTBRx_EL1[ASID]
  ISB
  write new value to TTBRx_EL1[BADDR]
  ISB
  write new value to TTBRx_EL1[ASID]
  ISB

When the above sequence is used, page table entries using the new BADDR
value may still be incorrectly allocated into the TLB using the reserved
ASID. Yet this will not reduce functionality, since TLB entries incorrectly
tagged with the reserved ASID will never be hit by a later instruction.

Based on work by Shanker Donthineni <shankerd@codeaurora.org>

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-10 11:22:12 +00:00
Kees Cook
dfb4357da6 time: Remove CONFIG_TIMER_STATS
Currently CONFIG_TIMER_STATS exposes process information across namespaces:

kernel/time/timer_list.c print_timer():

        SEQ_printf(m, ", %s/%d", tmp, timer->start_pid);

/proc/timer_list:

 #11: <0000000000000000>, hrtimer_wakeup, S:01, do_nanosleep, cron/2570

Given that the tracer can give the same information, this patch entirely
removes CONFIG_TIMER_STATS.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: linux-doc@vger.kernel.org
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Xing Gao <xgao01@email.wm.edu>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jessica Frazelle <me@jessfraz.com>
Cc: kernel-hardening@lists.openwall.com
Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Michal Marek <mmarek@suse.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Cc: Arjan van de Ven <arjan@linux.intel.com>
Link: http://lkml.kernel.org/r/20170208192659.GA32582@beast
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-10 11:15:08 +01:00
Phil Reid
9aedcc61ed dt: bindings: i2c-mux-pca954x: Add documentation for interrupt controller
Various muxes can aggregate multiple irq lines and provide a control
register to determine the active line. Add bindings for interrupt
controller support.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Peter Rosin <peda@axentia.se>
2017-02-10 08:23:50 +01:00
Michael S. Tsirkin
2fd260f03b PCI/AER: Remove unused .link_reset() callback
No hardware seems to actually call .link_reset(), and no driver implements
it as more than a nop stub.

Drop mentions of the callback from everywhere.  It's dropped from the
documentation as well, but the doc really needs to be updated to reflect
reality better (e.g., on PCIe, slot reset is the link reset).  This will be
done in a later patch.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-02-09 16:41:58 -06:00
Jelle van der Waa
83f66a6f08 Input: add driver for Zeitec ZET6223
This is a basic driver for the Zeitec ZET6223 I2C touchscreen
controllers. The driver does not support firmware loading, which is not
required for all tablets which contain this chip.

Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09 13:54:51 -08:00
Dave Gerlach
953a0f1833 Documentation: dt: add bindings for ti-cpufreq
Add the device tree bindings document for the TI CPUFreq/OPP driver
on AM33xx, AM43xx, DRA7xx, and AM57xx SoCs. The operating-points-v2
binding allows us to provide an opp-supported-hw property for each OPP
to define when it is available. This driver is responsible for reading
and parsing registers to determine which OPPs can be selectively enabled
based on the specific SoC in use by matching against the opp-supported-hw
data.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-09 22:53:54 +01:00
Rafael J. Wysocki
40e993aa04 Merge OPP material for v4.11 to satisfy dependencies. 2017-02-09 22:52:35 +01:00
Ding Tianhong
6e01398fe4 arm64: arch_timer: document Hisilicon erratum 161010101
Now that we have a workaround for Hisilicon erratum 161010101, notes
this in the arm64 silicon-errata document.

The new config option is too long to fit in the existing kconfig column,
so this is widened to accomodate it. At the same time, an existing
whitespace error is corrected, and the existing pattern of a line space
between vendors is enforced for recent additions.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
[Mark: split patch, reword commit message, rework table]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-09 18:00:47 +00:00
Baoyou Xie
b5f18ba893 ASoC: zx-i2s: Add the info of pclk to the binding document for zx2967 family
ZTE's zx2967 I2S controller driver introduces pclk, this
patch documents this fact.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-09 17:26:18 +00:00
Mika Westerberg
9827f9eb79 i2c: i801: Add support for Intel Gemini Lake
Intel Gemini Lake has the same SMBus host controller than Intel Broxton.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-02-09 17:39:16 +01:00
Peter Rosin
6b66a6f27e i2c: i2c-mux-gpio: rename i2c-gpio-mux to i2c-mux-gpio
The rename did the wrong thing for this documentation file all those
years ago. Fix that as well as the neglected rename of the platform
data structure.

Fixes: e7065e20d9a6 ("i2c: Rename last mux driver to standard pattern")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-02-09 17:01:47 +01:00
Paolo Bonzini
2e751dfb5f kvmarm updates for 4.11
- GICv3 save restore
 - Cache flushing fixes
 - MSI injection fix for GICv3 ITS
 - Physical timer emulation support
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Merge tag 'kvmarm-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

kvmarm updates for 4.11

- GICv3 save restore
- Cache flushing fixes
- MSI injection fix for GICv3 ITS
- Physical timer emulation support
2017-02-09 16:01:23 +01:00
Chris Packham
de55ce0de9 Documentation: powerpc/fsl: Update compatible for l2cache binding
List all the current valid compatible strings for the l2cache binding.
This should stop checkpatch.pl from complaining and will hopefully save
someone from having to debug a typo in their dts.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-09 10:31:38 +11:00
Brian Norris
9c8d7ff32a This pull request contains minor fixes/improvements on existing drivers:
- sunxi: avoid busy-waiting for NAND events
 - ifc: fix ECC handling on IFC v1.0
 - OX820: add explicit dependency on ARCH_OXNAS in Kconfig
 - core: add a new manufacture ID and fix a kernel-doc warning
 - fsmc: kill pdata support
 - lpc32xx_slc: remove unneeded NULL check
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Merge tag 'nand/for-4.11' of github.com:linux-nand/linux

From Boris:

"""
This pull request contains minor fixes/improvements on existing drivers:
- sunxi: avoid busy-waiting for NAND events
- ifc: fix ECC handling on IFC v1.0
- OX820: add explicit dependency on ARCH_OXNAS in Kconfig
- core: add a new manufacture ID and fix a kernel-doc warning
- fsmc: kill pdata support
- lpc32xx_slc: remove unneeded NULL check
"""

Conflicts:
	include/linux/mtd/nand.h
[Brian: trivial conflict in the comment section]
2017-02-08 15:00:24 -08:00
Linus Walleij
22f090a4b1 mtd: add DT bindings for the Cortina Systems Gemini Flash
This adds device tree bindings for the Cortina systems Gemini
flash controller, a simple physmap which however need a few
syscon bits to be poked to operate properly.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2017-02-08 11:36:10 -08:00
Lucas Stach
8ed81ec82a PCI: mvebu: Change delay after reset to the PCIe spec mandated 100ms
The current default of 20ms cause some devices, which are slow to
initialize, to not show up during the bus scanning.  Change this to the
PCIe spec mandated 100ms and document this in the DT binding.

From PCIe base spec rev 3.0, chapter "6.6.1. Conventional Reset":

  To allow components to perform internal initialization, system software
  must wait a specified minimum period following the end of a Conventional
  Reset of one or more devices before it is permitted to issue
  Configuration Requests to those devices.

  With a Downstream Port that does not support Link speeds greater than 5.0
  GT/s, software must wait a minimum of 100 ms before sending a
  Configuration Request to the device immediately below that Port.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
2017-02-08 13:33:57 -06:00
Neil Leeder
21bdbb7102 perf: add qcom l2 cache perf events driver
Adds perf events support for L2 cache PMU.

The L2 cache PMU driver is named 'l2cache_0' and can be used
with perf events to profile L2 events such as cache hits
and misses on Qualcomm Technologies processors.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
[will: minimise nesting in l2_cache_associate_cpu_with_cluster]
[will: use kstrtoul for unsigned long, remove redunant .owner setting]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-08 19:32:24 +00:00
Raju Lakkaraju
04d8a0a5f3 net: phy: Add LED mode driver for Microsemi PHYs.
LED Mode:
Microsemi PHY support 2 LEDs (LED[0] and LED[1]) to display different
status information that can be selected by setting LED mode.

LED Mode parameter (vsc8531, led-0-mode) and (vsc8531, led-1-mode) get
from Device Tree.

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-08 13:29:04 -05:00
Tomi Valkeinen
ba14301e03 fbdev/ssd1307fb: add support to enable VBAT
SSD1306 needs VBAT when it is wired in charge pump configuration. This
patch adds support to the driver to enable VBAT regulator at init time.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Benoît Cousson <bcousson@baylibre.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-02-08 16:43:59 +01:00
Jyri Sarha
fdde1a8148 fbdev: ssd1307fb: Make reset gpio devicetree property optional
Make reset gpio devicetree property optional. Depending on the board
designing there may not be a dedicated gpio for resetting the
display. Without a proper reset there may be some junk in the display
memory at probe time, so in such a case the display memory is cleared
before turning it on. The devicetree binding document is also updated.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Benoît Cousson <bcousson@baylibre.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-02-08 16:43:59 +01:00
Jyri Sarha
519b4dba58 fbdev: ssd1307fb: Remove reset-active-low from the DT binding document
Remove reset-active-low from the devicetree binding document. The actual
implementation has never been there in the driver code and there is no
reason to add it because the gpiod API supports gpio flags, including
GPIO_ACTIVE_LOW, directly trough its own devicetree binding.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Benoît Cousson <bcousson@baylibre.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-02-08 16:43:59 +01:00
Linus Walleij
f59098c3ee irqchip: DT bindings for Cortina Gemini irqchip
This adds device tree bindings for the Cortina Gemini interrupt
controller. They are pretty standard.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08 14:06:21 +00:00
Hugues Fruchet
ce0b001bda [media] Documentation: DT: add bindings for ST DELTA
This patch adds DT binding documentation for STMicroelectronics
DELTA V4L2 video decoder.

Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-08 09:56:47 -02:00
Ding Tianhong
5444ea6a7f clocksource/drivers/arm_arch_timer: Remove fsl-a008585 parameter
Having a command line option to flip the errata handling for a
particular erratum is a little bit unusual, and it's vastly superior to
pass this in the DT. By common consensus, it's best to kill off the
command line parameter.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
[Mark: split patch, reword commit message]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-08 00:14:03 +01:00
Ding Tianhong
729e55225b clocksource/drivers/arm_arch_timer: Add dt binding for hisilicon-161010101 erratum
This erratum describes a bug in logic outside the core, so MIDR can't be
used to identify its presence, and reading an SoC-specific revision
register from common arch timer code would be awkward.  So, describe it
in the device tree.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-08 00:13:57 +01:00
David S. Miller
3efa70d78f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The conflict was an interaction between a bug fix in the
netvsc driver in 'net' and an optimization of the RX path
in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 16:29:30 -05:00
Laura Abbott
0f5bf6d0af arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
Both of these options are poorly named. The features they provide are
necessary for system security and should not be considered debug only.
Change the names to CONFIG_STRICT_KERNEL_RWX and
CONFIG_STRICT_MODULE_RWX to better describe what these options do.

Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Jessica Yu <jeyu@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-02-07 12:32:52 -08:00
Laura Abbott
ad21fc4faa arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
There are multiple architectures that support CONFIG_DEBUG_RODATA and
CONFIG_SET_MODULE_RONX. These options also now have the ability to be
turned off at runtime. Move these to an architecture independent
location and make these options def_bool y for almost all of those
arches.

Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-02-07 12:32:52 -08:00
Chris Brandt
a1966cd29d clocksource/drivers/ostm: Document renesas-ostm timer DT bindings
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07 20:58:30 +01:00
Linus Walleij
9744b181ee clocksource: add DT bindings for Cortina Gemini
This adds device tree bindings for the Cortina Systems Gemini
timer block used in these SoCs.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07 20:58:30 +01:00
Lukasz Majewski
252ae5330d Documentation: devicetree: Add PHY no lane swap binding
Add the documentation to avoid PHY lane swapping. This is a boolean
entry to notify the phy device drivers that the TX/RX lanes NO need
to be swapped.
The use case for this binding mostly happens after wrong HW
configuration of PHY IC during bootstrap.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 13:59:27 -05:00
Thomas Petazzoni
4b741bc359 dt-bindings: net: remove reference to fixed link support
Contrary to what the Device Tree binding indicates, the binding for the
PPv2 network device currently doesn't provide any fixed link
functionality. This commit adjusts the Device Tree binding documentation
accordingly.

Reported-by: Russell King - ARM Linux <linux@armlinux.org.uk>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-02-07 12:46:20 -06:00
Paolo Bonzini
d9c0e59f92 KVM: MIPS: GVA/GPA page tables, dirty logging, SYNC_MMU etc
Numerous MIPS KVM fixes, improvements, and features for 4.11, many of
 which continue to pave the way for VZ support, the most interesting of
 which are:
 
  - Add GVA->HPA page tables for T&E, to cache GVA mappings.
  - Generate fast-path TLB refill exception handler which loads host TLB
    entries from GVA page table, avoiding repeated guest memory
    translation and guest TLB lookups.
  - Use uaccess macros when T&E needs to access guest memory, which with
    GVA page tables and the Linux TLB refill handler improves robustness
    against TLB faults and fixes EVA hosts.
  - Use BadInstr/BadInstrP registers when available to obtain instruction
    encodings after a synchronous trap.
  - Add GPA->HPA page tables to replace the inflexible linear array,
    allowing for multiple sparsely arranged memory regions.
  - Properly implement dirty page logging.
  - Add KVM_CAP_SYNC_MMU support so that changes in GPA mappings become
    effective in guests even if they are already running, allowing for
    copy-on-write, KSM, idle page tracking, swapping, and guest memory
    ballooning.
  - Add KVM_CAP_READONLY_MEM support, so writes to specified memory
    regions are treated as MMIO.
  - Implement proper CP0_EBase support in T&E.
  - Expose a few more missing CP0 registers to userland.
  - Add KVM_CAP_NR_VCPUS and KVM_CAP_MAX_VCPUS support, and allow up to 8
    VCPUs to be created in a VM.
  - Various cleanups and dropping of dead and duplicated code.
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Merge tag 'kvm_mips_4.11_1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/kvm-mips into HEAD

KVM: MIPS: GVA/GPA page tables, dirty logging, SYNC_MMU etc

Numerous MIPS KVM fixes, improvements, and features for 4.11, many of
which continue to pave the way for VZ support, the most interesting of
which are:

 - Add GVA->HPA page tables for T&E, to cache GVA mappings.
 - Generate fast-path TLB refill exception handler which loads host TLB
   entries from GVA page table, avoiding repeated guest memory
   translation and guest TLB lookups.
 - Use uaccess macros when T&E needs to access guest memory, which with
   GVA page tables and the Linux TLB refill handler improves robustness
   against TLB faults and fixes EVA hosts.
 - Use BadInstr/BadInstrP registers when available to obtain instruction
   encodings after a synchronous trap.
 - Add GPA->HPA page tables to replace the inflexible linear array,
   allowing for multiple sparsely arranged memory regions.
 - Properly implement dirty page logging.
 - Add KVM_CAP_SYNC_MMU support so that changes in GPA mappings become
   effective in guests even if they are already running, allowing for
   copy-on-write, KSM, idle page tracking, swapping, and guest memory
   ballooning.
 - Add KVM_CAP_READONLY_MEM support, so writes to specified memory
   regions are treated as MMIO.
 - Implement proper CP0_EBase support in T&E.
 - Expose a few more missing CP0 registers to userland.
 - Add KVM_CAP_NR_VCPUS and KVM_CAP_MAX_VCPUS support, and allow up to 8
   VCPUs to be created in a VM.
 - Various cleanups and dropping of dead and duplicated code.
2017-02-07 18:18:13 +01:00
Paolo Bonzini
d5b798c15f Merge branch 'kvm-ppc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
The big feature this time is support for POWER9 using the radix-tree
MMU for host and guest.  This required some changes to arch/powerpc
code, so I talked with Michael Ellerman and he created a topic branch
with this patchset, which I merged into kvm-ppc-next and which Michael
will pull into his tree.  Michael also put in some patches from Nick
Piggin which fix bugs in the interrupt vector code in relocatable
kernels when coming from a KVM guest.

Other notable changes include:

* Add the ability to change the size of the hashed page table,
  from David Gibson.

* XICS (interrupt controller) emulation fixes and improvements,
  from Li Zhong.

* Bug fixes from myself and Thomas Huth.

These patches define some new KVM capabilities and ioctls, but there
should be no conflicts with anything else currently upstream, as far
as I am aware.
2017-02-07 18:17:46 +01:00
Marcelo Tosatti
55dd00a73a KVM: x86: add KVM_HC_CLOCK_PAIRING hypercall
Add a hypercall to retrieve the host realtime clock and the TSC value
used to calculate that clock read.

Used to implement clock synchronization between host and guest.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-07 18:16:45 +01:00
Arnd Bergmann
28eedd15ec Improve the PM domains driver for Exynos by displaying a user-friendly name of
power domain.  Till now, the name of node from DT was used which mostly is just
 "power-domain".  We need more than that.
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Merge tag 'samsung-drivers-soc-pm-domains-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

Pull "soc: samsung: pm_domains for v4.11" from Krzysztof Kozłowski:

Improve the PM domains driver for Exynos by displaying a user-friendly name of
power domain.  Till now, the name of node from DT was used which mostly is just
"power-domain".  We need more than that.

* tag 'samsung-drivers-soc-pm-domains-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  soc: samsung: pm_domains: Read domain name from the new label property
  soc: samsung: pm_domains: Remove message about failed memory allocation
  soc: samsung: pm_domains: Remove unused name field
  soc: samsung: pm_domains: Use full names in subdomains registration log
2017-02-07 17:20:07 +01:00
Andrew Lunn
55601a8806 net: phy: Add 2000base-x, 2500base-x and rxaui modes
The mv88e6390 ports 9 and 10 supports some additional PHY modes. Add
these modes to the PHY core so they can be used in the binding.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 10:34:42 -05:00
Arnd Bergmann
ef4968f453 Allwinner core changes for 4.11
Some patches to support two new SoCs: the H2+ and the V3s.
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Merge tag 'sunxi-core-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/soc

Pull "Allwinner core changes for 4.11" from Maxime Ripard:

Some patches to support two new SoCs: the H2+ and the V3s.

* tag 'sunxi-core-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  arm: sunxi: add support for V3s SoC
  ARM: sunxi: add support for H2+ SoC
2017-02-07 16:17:39 +01:00
Arnd Bergmann
5172d5a5a9 mvebu soc for 4.11 (part 2)
SoC part of the support for the for Marvell switches with integrated
 CPUs based on Armada XP: the SMP support is slightly different.
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Merge tag 'mvebu-soc-4.11-2' of git://git.infradead.org/linux-mvebu into next/soc

Pull "mvebu soc for 4.11 (part 2)" from Gregory CLEMENT:

SoC part of the support for the for Marvell switches with integrated
CPUs based on Armada XP: the SMP support is slightly different.

* tag 'mvebu-soc-4.11-2' of git://git.infradead.org/linux-mvebu:
  arm: mvebu: support for SMP on 98DX3336 SoC
2017-02-07 16:15:43 +01:00
Arnd Bergmann
3c38e32aad Allwinner DT changes for 4.11, part 2
Support for the audio codec and Mali GPU for the A33
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Merge tag 'sunxi-dt-for-4.11-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/dt

Pull "Allwinner DT changes for 4.11, part 2" from Maxime Ripard:

Support for the audio codec and Mali GPU for the A33

* tag 'sunxi-dt-for-4.11-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: dts: sun8i: sinlinx: Enable audio nodes
  ARM: dts: sun8i: parrot: Enable audio nodes
  ARM: dts: sun8i: Add audio codec, dai and card for A33
  ARM: sun8i: dt: Add mali node
  dt-bindings: gpu: Add Mali Utgard bindings
2017-02-07 16:09:41 +01:00
Arnd Bergmann
2bad7f862e Allwinner DT changes for 4.11
The usual chunk of DT changes, most notably:
   - Support for the H2+ and the V3s
   - CPUFreq support for the A33
   - SPDIF support for the A31 and H3
   - New boards: Beelink X2, Lichee Pi One, Lichee Pi Zero,
     Orange Pi Zero
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Merge tag 'sunxi-dt-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/dt

Pull "Allwinner DT changes for 4.11" from Maxime Ripard:

The usual chunk of DT changes, most notably:
  - Support for the H2+ and the V3s
  - CPUFreq support for the A33
  - SPDIF support for the A31 and H3
  - New boards: Beelink X2, Lichee Pi One, Lichee Pi Zero,
    Orange Pi Zero

* tag 'sunxi-dt-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: (42 commits)
  ARM: dts: sun8i-h3: Add SPDIF to the Beelink X2
  ARM: dts: sun8i-h3: Add the SPDIF block to the H3
  ARM: dts: sun8i-h3: Add SPDIF TX pin to the H3
  ARM: dts: sun8i-h3: Add dts for the Beelink X2 STB
  ARM: sun8i: sina33: Enable display
  ARM: sun8i: a23/a33: Add the oscillators accuracy
  ARM: sun8i: a23/a33: Enable the real LOSC and use it
  ARM: dts: sunxi: add support for Lichee Pi Zero board
  ARM: dts: sunxi: add dtsi file for V3s SoC
  ARM: dts: sun6i: sina31s: Enable USB OTG controller in peripheral mode
  ARM: dts: sun8i: reference-design: use AXP223 DTSI
  ARM: dts: sun8i: parrot: use AXP223 DTSI
  ARM: dts: sun8i: sina33: use AXP223 DTSI
  ARM: dts: sun8i: a33-olinuxino: use AXP223 DTSI
  ARM: dts: add DTSI for AXP223
  dt-bindings: power: axp20x-usb: add axp223 compatible
  ARM: dts: sun7i: Add wifi dt node on Banana Pro
  ARM: dts: sun6i: Add SPDIF to the Mele I7
  devicetree: bindings: Add vendor prefix for Shenzhen Xunlong Software
  ARM: dts: sun8i-h3: orange-pi-pc: Enable audio codec
  ...
2017-02-07 16:08:58 +01:00
Arnd Bergmann
54fe90874f mvebu dt for 4.11 (part 3)
Add support for Marvell switches with integrated CPUs based on Armada XP
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Merge tag 'mvebu-dt-4.11-3' of git://git.infradead.org/linux-mvebu into next/dt

Merge "mvebu dt for 4.11 (part 3)" from Gregory CLEMENT:

Add support for Marvell switches with integrated CPUs based on Armada XP

* tag 'mvebu-dt-4.11-3' of git://git.infradead.org/linux-mvebu:
  ARM: dts: mvebu: Add device tree for db-dxbc2 and db-xc3-24g4xg boards
  ARM: dts: mvebu: Add device tree for 98DX3236 SoCs
2017-02-07 15:08:17 +01:00
Marc Zyngier
1defa60e5d dt-bindings: arm,gic: Fix binding example for a virt-capable GIC
The joys of copy/paste: the example of a virtualization capable GIC
in the DT binding was wrong, and propagated to dozens of platforms.
By having a GICC region that is only 4kB (instead of 8kB), we
end-up not being able to access the GICC_DIR register which is on
the second page.

Oh well. Let's fix the source of the crap before tackling individual
offenders.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-02-07 15:06:45 +01:00
David Howells
de8cb45862 efi: Get and store the secure boot status
Get the firmware's secure-boot status in the kernel boot wrapper and stash
it somewhere that the main kernel image can find.

The efi_get_secureboot() function is extracted from the ARM stub and (a)
generalised so that it can be called from x86 and (b) made to use
efi_call_runtime() so that it can be run in mixed-mode.

For x86, it is stored in boot_params and can be overridden by the boot
loader or kexec.  This allows secure-boot mode to be passed on to a new
kernel.

Suggested-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1486380166-31868-5-git-send-email-ard.biesheuvel@linaro.org
[ Small readability edits. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-07 10:42:10 +01:00
Takashi Iwai
1e94320ffe Merge branch 'for-linus' into for-next 2017-02-07 09:38:44 +01:00
Dave Airlie
26d7f34cae Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next
The big things this time around are:
1) support for hw cursor on newer mdp5 devices (snapdragon 820+,
tested on db820c)
2) dsi encoder cleanup
3) gpu dt bindings cleanup so we can get the gpu nodes merged upstream

* 'msm-next' of git://people.freedesktop.org/~robclark/linux: (32 commits)
  drm/msm: return -EFAULT if copy_from_user() fails
  drm/msm/dsi: Add PHY/PLL for 8x96
  drm/msm/dsi: Add new method to calculate 14nm PHY timings
  drm/msm/dsi: Move PHY operations out of host
  drm/msm/dsi: Reset both PHYs before clock operation for dual DSI
  drm/msm/dsi: Pass down use case to PHY
  drm/msm/dsi: Return more timings from PHY to host
  drm/msm/dsi: Add a PHY op that initializes version specific stuff
  drm/msm/dsi: Add 8x96 info in dsi_cfg
  drm/msm/dsi: Don't error if a DSI host doesn't have a device connected
  drm/msm/mdp5: Add support for legacy cursor updates
  drm/msm/mdp5: Refactor mdp5_plane_atomic_check
  drm/msm/mdp5: Add cursor planes
  drm/msm/mdp5: Misc cursor plane bits
  drm/msm/mdp5: Configure COLOR3_OUT propagation
  drm/msm/mdp5: Use plane helpers to configure src/dst rectangles
  drm/msm/mdp5: Prepare CRTC/LM for empty stages
  drm/msm/mdp5: Create only as many CRTCs as we need
  drm/msm/mdp5: cfg: Change count to unsigned int
  drm/msm/mdp5: Create single encoder per interface (INTF)
  ...
2017-02-07 11:05:42 +10:00
Linus Torvalds
72df5eba70 media fixes for v4.10-rc8
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Merge tag 'media/v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "A few documentation fixes at CEC (with got promoted from staging for
  4.10), and one fix on its core."

* tag 'media/v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] cec: fix wrong last_la determination
  [media] cec-intro.rst: mention the v4l-utils package and CEC utilities
  [media] cec rst: remove "This API is not yet finalized" notice
2017-02-06 14:37:55 -08:00
Dongdong Liu
a2ec199609 PCI: hisi: Add DT almost-ECAM support for Hip06/Hip07 host controllers
The PCIe controller in HiSilicon Hip06/Hip07 SoCs is not completely
ECAM-compliant.  It is non-ECAM only for the RC bus config space; for any
other bus underneath the root bus it does support ECAM access.

Add DT support for the almost-ECAM Hip06/Hip07 controllers.

[bhelgaas: drop dev->of_node test, driver name "hisi-pcie-almost-ecam"]
Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
2017-02-06 16:28:29 -06:00