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linux-linaro-lsk-v3.14
Conflicts:
arch/arm/include/asm/kvm_mmu.h
arch/arm/kvm/mmu.c
arch/arm64/include/asm/kvm_arm.h
arch/arm64/include/asm/kvm_host.h
arch/arm64/include/asm/kvm_mmu.h
virt/kvm/arm/vgic.c
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commit 3ad8b3de526a76fbe9466b366059e4958957b88f upstream.
The implementation of KVM_ARM_VCPU_INIT is currently not doing what
userspace expects, namely making sure that a vcpu which may have been
turned off using PSCI is returned to its initial state, which would be
powered on if userspace does not set the KVM_ARM_VCPU_POWER_OFF flag.
Implement the expected functionality and clarify the ABI.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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To fix dm-crypt performance bug.
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Cryptsetup home page moved to GitLab.
Also remove link to abandonded Truecrypt page.
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
(cherry picked from commit e44f23b32dc7916b2bc12817e2f723fefa21ba41)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Make it possible to disable offloading writes by setting the optional
'submit_from_crypt_cpus' table argument.
There are some situations where offloading write bios from the
encryption threads to a single thread degrades performance
significantly.
The default is to offload write bios to the same thread because it
benefits CFQ to have writes submitted using the same IO context.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
(cherry picked from commit 0f5d8e6ee758f7023e4353cca75d785b2d4f6abe)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Use unbound workqueue by default so that work is automatically balanced
between available CPUs. The original behavior of encrypting using the
same cpu that IO was submitted on can still be enabled by setting the
optional 'same_cpu_crypt' table argument.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
(cherry picked from commit f3396c58fd8442850e759843457d78b6ec3a9589)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into linux-linaro-lsk-v3.14
Conflicts:
arch/arm/include/asm/kvm_mmu.h
arch/arm/kvm/mmu.c
arch/arm64/include/asm/kvm_arm.h
arch/arm64/include/asm/kvm_mmu.h
arch/arm64/kvm/sys_regs.c
virt/kvm/arm/vgic.c
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commit 4ada77e37a773168fea484899201e272ab44ba8b upstream.
Fix a typo in the TX DMA interrupt name for AUART4.
This patch makes AUART4 operational again.
Signed-off-by: Marek Vasut <marex@denx.de>
Fixes: f30fb03d4d3a ("ARM: dts: add generic DMA device tree binding for mxs-dma")
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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linux-linaro-lsk-v3.14
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Reported-by: Fabian Sturm <fabian.sturm@aduu.de>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
(cherry picked from commit 6d900f5a33393067e370736d39798f814f5e25cc)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
(cherry picked from commit 2b7a8f36f092a7855f6438cd42d6990394f450fa)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Allow "lowerdir=" option to contain multiple lower directories separated by
a colon (e.g. "lowerdir=/bin:/usr/bin"). Colon characters in filenames can
be escaped with a backslash.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
(cherry picked from commit a78d9f0d5d5ca9054703376c7c23c901807ddd87)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Some distributions carry an "old" format of overlayfs while mainline has a
"new" format.
The distros will possibly want to keep the old overlayfs alongside the new
for compatibility reasons.
To make it possible to differentiate the two versions change the name of
the new one from "overlayfs" to "overlay".
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reported-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Cc: Andy Whitcroft <apw@canonical.com>
(cherry picked from commit ef94b1864d1ed5be54376404bb23d22ed0481feb)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Add a new inode operation i_op->dentry_open(). This is for stacked filesystems
that want to return a struct file from a different filesystem.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
(cherry picked from commit 4aa7c6346be395bdf776f82bbb2e3e2bc60bdd2b)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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Add new renameat2 syscall, which is the same as renameat with an added
flags argument.
Pass flags to vfs_rename() and to i_op->rename() as well.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: J. Bruce Fields <bfields@redhat.com>
(cherry picked from commit 520c8b16505236fc82daa352e6c5e73cd9870cff)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
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linux-linaro-lsk-v3.14
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The right debug AMBA bus name should be APB(Advanced Peripheral Bus),
so just fix it.
Signed-off-by: Kaixu Xia <xiakaixu@huawei.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 7af8792b4d3ad94774fb40f422fa245ab3755bb4)
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
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Now we use the device name to identify replicator instead
of a unique number, so just remove it.
Signed-off-by: Kaixu Xia <xiakaixu@huawei.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 603101708c9c9ad2bc5a183d6d10b115738098c7)
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
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Conflicts:
drivers/of/Kconfig
drivers/of/Makefile
drivers/of/address.c
drivers/of/selftest.c
include/linux/of.h
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Introduce I2C device tree overlay tests.
Tests insertion and removal of i2c adapters, i2c devices, and muxes.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Rob Herring <robh@kernel.org>
(cherry picked from commit d5e75500ca401d3128c82c5b0dee2f9b259d5b5c)
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add unittests for OF overlays.
It tests overlay device addition/removal and whether
the apply revert sequence is correct.
Changes since V1:
* Added local fixups entries.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
(cherry picked from commit 177d271cf3171bb6826ee5189f67dc1f7d34f1da)
Signed-off-by: Mark Brown <broonie@kernel.org>
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Overlays are a method to dynamically modify part of the kernel's
device tree with dynamically loaded data. Add the core functionality to
parse, apply and remove an overlay changeset. The core functionality
takes care of managing the overlay data format and performing the add
and remove. Drivers are expected to use the overlay functionality to
support custom expansion busses commonly found on consumer development
boards like the BeagleBone or Raspberry Pi.
The overlay code uses CONFIG_OF_DYNAMIC changesets to perform the low
level work of modifying the devicetree.
Documentation about internal and APIs is provided in
Documentation/devicetree/overlay-notes.txt
v2:
- Switch from __of_node_alloc() to __of_node_dup()
- Documentation fixups
- Remove 2-pass processing of properties
- Remove separate ov_lock; just use the DT mutex.
v1:
- Drop delete capability using '-' prefix. The '-' prefixed names
are valid properties and nodes and there is no need for it just yet.
- Do not update special properties - name & phandle ones.
- Change order of node attachment, so that the special property update
works.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
(cherry picked from commit 7518b5890d8ac366faa2326ce2356ef6392ce63d)
Signed-off-by: Mark Brown <broonie@kernel.org>
Conflicts:
drivers/of/Makefile
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Introduce support for dynamic device tree resolution.
Using it, it is possible to prepare a device tree that's
been loaded on runtime to be modified and inserted at the kernel
live tree.
Export of of_resolve and bug fix of double free by
Guenter Roeck <groeck@juniper.net>
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
[grant.likely: Don't need to select CONFIG_OF_DYNAMIC and CONFIG_OF_DEVICE]
[grant.likely: Don't need to depend on OF or !SPARC]
[grant.likely: Factor out duplicate code blocks into single function]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
(cherry picked from commit 7941b27b16e3282f6ec8817e36492f1deec753a7)
Signed-off-by: Mark Brown <broonie@kernel.org>
Conflicts:
drivers/of/Kconfig
drivers/of/Makefile
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Introducing DT transactional support.
A DT transaction is a method which allows one to apply changes
in the live tree, in such a way that either the full set of changes
take effect, or the state of the tree can be rolled-back to the
state it was before it was attempted. An applied transaction
can be rolled-back at any time.
Documentation is in
Documentation/devicetree/changesets.txt
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
[glikely: Removed device notifiers and reworked to be more consistent]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
(cherry picked from commit 201c910bd6898d81d4ac6685d0f421b7e10f3c5d)
Signed-off-by: Mark Brown <broonie@kernel.org>
Conflicts:
include/linux/of.h
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Device tree nodes are already treated as objects, and we already want to
expose them to userspace which is done using the /proc filesystem today.
Right now the kernel has to do a lot of work to keep the /proc view in
sync with the in-kernel representation. If device_nodes are switched to
be kobjects then the device tree code can be a whole lot simpler. It
also turns out that switching to using /sysfs from /proc results in
smaller code and data size, and the userspace ABI won't change if
/proc/device-tree symlinks to /sys/firmware/devicetree/base.
v7: Add missing sysfs_bin_attr_init()
v6: Add __of_add_property() early init fixes from Pantelis
v5: Rename firmware/ofw to firmware/devicetree
Fix updating property values in sysfs
v4: Fixed build error on Powerpc
Fixed handling of dynamic nodes on powerpc
v3: Fixed handling of duplicate attribute and child node names
v2: switch to using sysfs bin_attributes which solve the problem of
reporting incorrect property size.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
(cherry picked from commit 75b57ecf9d1d1e17d099ab13b8f48e6e038676be)
Signed-off-by: Mark Brown <broonie@kernel.org>
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This is the 3.14.30 stable release
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commit 148e9a711e034e06310a8c36b64957934ebe30f2 upstream.
On some laptops, keyboard needs to be reset in order to successfully detect
touchpad (e.g., some Gigabyte laptop models with Elantech touchpads).
Without resettin keyboard touchpad pretends to be completely dead.
Based on the original patch by Mateusz Jończyk this version has been
expanded to include DMI based detection & application of the fix
automatically on the affected models of laptops. This has been confirmed to
fix problem by three users already on three different models of laptops.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81331
Signed-off-by: Srihari Vijayaraghavan <linux.bug.reporting@gmail.com>
Acked-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Tested-by: Srihari Vijayaraghavan <linux.bug.reporting@gmail.com>
Tested by: Zakariya Dehlawi <zdehlawi@gmail.com>
Tested-by: Guillaum Bouchard <guillaum.bouchard@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is the 3.14.29 stable release
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commit 027bc8b08242c59e19356b4b2c189f2d849ab660 upstream.
On some ARMs the memory can be mapped pgprot_noncached() and still
be working for atomic operations. As pointed out by Colin Cross
<ccross@android.com>, in some cases you do want to use
pgprot_noncached() if the SoC supports it to see a debug printk
just before a write hanging the system.
On ARMs, the atomic operations on strongly ordered memory are
implementation defined. So let's provide an optional kernel parameter
for configuring pgprot_noncached(), and use pgprot_writecombine() by
default.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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linux-linaro-lsk-v3.14
Conflicts:
drivers/Makefile
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Documentation containing an explanation on what the framework
provides and the drivers working with it. A minimal example
on how to use the functionality is also provided.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 872234d3fb32e26d3377590c396858d2324b8c16)
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
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Coresight IP blocks allow for the support of HW assisted tracing
on ARM SoCs. Bindings for the currently available blocks are
presented herein.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 799656de6f6587cecc0b05477501e41c211a75fa)
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
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This patch introduces generic code to perform PM domain look-up using
device tree and automatically bind devices to their PM domains.
Generic device tree bindings are introduced to specify PM domains of
devices in their device tree nodes.
Backwards compatibility with legacy Samsung-specific PM domain bindings
is provided, but for now the new code is not compiled when
CONFIG_ARCH_EXYNOS is selected to avoid collision with legacy code.
This will change as soon as the Exynos PM domain code gets converted to
use the generic framework in further patch.
This patch was originally submitted by Tomasz Figa when he was employed
by Samsung.
Link: http://marc.info/?l=linux-pm&m=139955349702152&w=2
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit aa42240ab2544a8bcb2efb400193826f57f3175e)
Signed-off-by: Mark Brown <broonie@kernel.org>
Conflicts:
include/linux/pm_domain.h
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Conflicts:
drivers/usb/dwc3/core.c
drivers/usb/dwc3/gadget.c
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Adapted dwc3 core to use the Generic PHY Framework. So for init, exit,
power_on and power_off the following APIs are used phy_init(), phy_exit(),
phy_power_on() and phy_power_off().
However using the old USB phy library wont be removed till the PHYs of all
other SoC's using dwc3 core is adapted to the Generic PHY Framework.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
(cherry picked from commit 57303488cd37da58263e842de134dc65f7c626d5)
Signed-off-by: Mark Brown <broonie@kernel.org>
Conflicts:
drivers/usb/dwc3/core.c
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If an xhci platform supports USB3 LPM capability then enable
XHCI_LPM_SUPPORT quirk flag.
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 20f6fdd01c2c0de9cc1109083222edded24c5350)
Signed-off-by: Mark Brown <broonie@kernel.org>
Conflicts:
Documentation/devicetree/bindings/usb/usb-xhci.txt
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This is the 3.14.26 stable release
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commit 66865de4314caca30598244b86817e774c188afa upstream.
a9ecdc0fdc54 ("of/irq: Fix lookup to use 'interrupts-extended' property
first") updated the description to say that:
- Both 'interrupts' and 'interrupts-extended' may be present
- Software should prefer 'interrupts-extended'
- Software that doesn't comprehend 'interrupts-extended' may use
'interrupts'
But there is still a paragraph at the end that prohibits having both and
says 'interrupts' should be preferred.
Remove the contradictory text.
Fixes: a9ecdc0fdc54 ("of/irq: Fix lookup to use 'interrupts-extended' property first")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is the 3.14.25 stable release
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commit aa1cf25887099bba68f1f3879c0d394e08b8779f upstream.
Unlike other SATA R-Car r8a7790 controllers the r8a7790 ES1 SATA R-Car
controller needs to be run with DIPM disabled.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is the 3.14.23 stable release
Conflicts:
arch/s390/kvm/interrupt.c
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commit d98a0526434d27e261f622cf9d2e0028b5ff1a00 upstream.
Add a complete description of the LZO format as processed by the
decompressor. I have not found a public specification of this format
hence this analysis, which will be used to better understand the code.
Cc: Willem Pinckaers <willem@lekkertech.net>
Cc: "Don A. Bailey" <donb@securitymouse.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ee3d1570b58677885b4552bce8217fda7b226a68 upstream.
vcpu exits and memslot mutations can run concurrently as long as the
vcpu does not aquire the slots mutex. Thus it is theoretically possible
for memslots to change underneath a vcpu that is handling an exit.
If we increment the memslot generation number again after
synchronize_srcu_expedited(), vcpus can safely cache memslot generation
without maintaining a single rcu_dereference through an entire vm exit.
And much of the x86/kvm code does not maintain a single rcu_dereference
of the current memslots during each exit.
We can prevent the following case:
vcpu (CPU 0) | thread (CPU 1)
--------------------------------------------+--------------------------
1 vm exit |
2 srcu_read_unlock(&kvm->srcu) |
3 decide to cache something based on |
old memslots |
4 | change memslots
| (increments generation)
5 | synchronize_srcu(&kvm->srcu);
6 retrieve generation # from new memslots |
7 tag cache with new memslot generation |
8 srcu_read_unlock(&kvm->srcu) |
... |
<action based on cache occurs even |
though the caching decision was based |
on the old memslots> |
... |
<action *continues* to occur until next |
memslot generation change, which may |
be never> |
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By incrementing the generation after synchronizing with kvm->srcu readers,
we ensure that the generation retrieved in (6) will become invalid soon
after (8).
Keeping the existing increment is not strictly necessary, but we
do keep it and just move it for consistency from update_memslots to
install_new_memslots. It invalidates old cached MMIOs immediately,
instead of having to wait for the end of synchronize_srcu_expedited,
which makes the code more clearly correct in case CPU 1 is preempted
right after synchronize_srcu() returns.
To avoid halving the generation space in SPTEs, always presume that the
low bit of the generation is zero when reconstructing a generation number
out of an SPTE. This effectively disables MMIO caching in SPTEs during
the call to synchronize_srcu_expedited. Using the low bit this way is
somewhat like a seqcount---where the protected thing is a cache, and
instead of retrying we can simply punt if we observe the low bit to be 1.
Signed-off-by: David Matlack <dmatlack@google.com>
Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Conflicts:
arch/arm64/include/asm/debug-monitors.h
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This is the 3.14.20 stable release
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commit a9ecdc0fdc54aa499604dbd43132988effcac9b4 upstream.
In case the Device Tree blob passed by the boot agent supplies both an
'interrupts-extended' and an 'interrupts' property in order to allow for
older kernels to be usable, prefer the new-style 'interrupts-extended'
property which conveys a lot more information.
This allows us to have bootloaders willingly maintaining backwards
compatibility with older kernels without entirely deprecating the
'interrupts' property.
Update the bindings documentation to describe a situation where both the
'interrupts-extended' and the 'interrupts' property are present, and
which one takes precedence over the other.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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