Add a new field, VIRTIO_BALLOON_S_AVAIL, to virtio_balloon memory
statistics protocol, corresponding to 'Available' in /proc/meminfo.
It indicates to the hypervisor how big the balloon can be inflated
without pushing the guest system to swap. This metric would be very
useful in VM orchestration software to improve memory management of
different VMs under overcommit.
This patch (of 2):
Factor out calculation of the available memory counter into a separate
exportable function, in order to be able to use it in other parts of the
kernel.
In particular, it appears a relevant metric to report to the hypervisor
via virtio-balloon statistics interface (in a followup patch).
Signed-off-by: Igor Redko <redkoi@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Get list of VMA flags up-to-date and sort it to match VM_* definition
order.
[vbabka@suse.cz: add a note above vmaflag definitions to update the names when changing]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Count how many times we put a THP in split queue. Currently, it happens
on partial unmap of a THP.
Rapidly growing value can indicate that an application behaves
unfriendly wrt THP: often fault in huge page and then unmap part of it.
This leads to unnecessary memory fragmentation and the application may
require tuning.
The event also can help with debugging kernel [mis-]behaviour.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Workingset code was recently made memcg aware, but shadow node shrinker
is still global. As a result, one small cgroup can consume all memory
available for shadow nodes, possibly hurting other cgroups by reclaiming
their shadow nodes, even though reclaim distances stored in its shadow
nodes have no effect. To avoid this, we need to make shadow node
shrinker memcg aware.
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As kmem accounting is now either enabled for all cgroups or disabled
system-wide, there's no point in having memcg_kmem_online() helper -
instead one can use memcg_kmem_enabled() and mem_cgroup_online(), as
shrink_slab() now does.
There are only two places left where this helper is used -
__memcg_kmem_charge() and memcg_create_kmem_cache(). The former can
only be called if memcg_kmem_enabled() returned true. Since the cgroup
it operates on is online, mem_cgroup_is_root() check will be enough.
memcg_create_kmem_cache() can't use mem_cgroup_online() helper instead
of memcg_kmem_online(), because it relies on the fact that in
memcg_offline_kmem() memcg->kmem_state is changed before
memcg_deactivate_kmem_caches() is called, but there we can just
open-code the check.
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sometimes gcc mysteriously doesn't inline
very small functions we expect to be inlined. See
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66122
With this .config:
http://busybox.net/~vda/kernel_config_OPTIMIZE_INLINING_and_Os,
the following functions get deinlined many times.
Examples of disassembly:
<SetPageUptodate> (43 copies, 141 calls):
55 push %rbp
48 89 e5 mov %rsp,%rbp
f0 80 0f 08 lock orb $0x8,(%rdi)
5d pop %rbp
c3 retq
<PagePrivate> (10 copies, 134 calls):
48 8b 07 mov (%rdi),%rax
55 push %rbp
48 89 e5 mov %rsp,%rbp
48 c1 e8 0b shr $0xb,%rax
83 e0 01 and $0x1,%eax
5d pop %rbp
c3 retq
This patch fixes this via s/inline/__always_inline/.
Code size decrease after the patch is ~7k:
text data bss dec hex filename
92125002 20826048 36417536 149368586 8e72f0a vmlinux
92118087 20826112 36417536 149361735 8e71447 vmlinux7_pageops_after
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Memory compaction can be currently performed in several contexts:
- kswapd balancing a zone after a high-order allocation failure
- direct compaction to satisfy a high-order allocation, including THP
page fault attemps
- khugepaged trying to collapse a hugepage
- manually from /proc
The purpose of compaction is two-fold. The obvious purpose is to
satisfy a (pending or future) high-order allocation, and is easy to
evaluate. The other purpose is to keep overal memory fragmentation low
and help the anti-fragmentation mechanism. The success wrt the latter
purpose is more
The current situation wrt the purposes has a few drawbacks:
- compaction is invoked only when a high-order page or hugepage is not
available (or manually). This might be too late for the purposes of
keeping memory fragmentation low.
- direct compaction increases latency of allocations. Again, it would
be better if compaction was performed asynchronously to keep
fragmentation low, before the allocation itself comes.
- (a special case of the previous) the cost of compaction during THP
page faults can easily offset the benefits of THP.
- kswapd compaction appears to be complex, fragile and not working in
some scenarios. It could also end up compacting for a high-order
allocation request when it should be reclaiming memory for a later
order-0 request.
To improve the situation, we should be able to benefit from an
equivalent of kswapd, but for compaction - i.e. a background thread
which responds to fragmentation and the need for high-order allocations
(including hugepages) somewhat proactively.
One possibility is to extend the responsibilities of kswapd, which could
however complicate its design too much. It should be better to let
kswapd handle reclaim, as order-0 allocations are often more critical
than high-order ones.
Another possibility is to extend khugepaged, but this kthread is a
single instance and tied to THP configs.
This patch goes with the option of a new set of per-node kthreads called
kcompactd, and lays the foundations, without introducing any new
tunables. The lifecycle mimics kswapd kthreads, including the memory
hotplug hooks.
For compaction, kcompactd uses the standard compaction_suitable() and
ompact_finished() criteria and the deferred compaction functionality.
Unlike direct compaction, it uses only sync compaction, as there's no
allocation latency to minimize.
This patch doesn't yet add a call to wakeup_kcompactd. The kswapd
compact/reclaim loop for high-order pages will be replaced by waking up
kcompactd in the next patch with the description of what's wrong with
the old approach.
Waking up of the kcompactd threads is also tied to kswapd activity and
follows these rules:
- we don't want to affect any fastpaths, so wake up kcompactd only from
the slowpath, as it's done for kswapd
- if kswapd is doing reclaim, it's more important than compaction, so
don't invoke kcompactd until kswapd goes to sleep
- the target order used for kswapd is passed to kcompactd
Future possible future uses for kcompactd include the ability to wake up
kcompactd on demand in special situations, such as when hugepages are
not available (currently not done due to __GFP_NO_KSWAPD) or when a
fragmentation event (i.e. __rmqueue_fallback()) occurs. It's also
possible to perform periodic compaction with kcompactd.
[arnd@arndb.de: fix build errors with kcompactd]
[paul.gortmaker@windriver.com: don't use modular references for non modular code]
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: David Rientjes <rientjes@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently /proc/kpageflags returns nothing for "tail" buddy pages, which
is inconvenient when grasping how free pages are distributed. This
patch sets KPF_BUDDY for such pages.
With this patch:
$ grep MemFree /proc/meminfo ; tools/vm/page-types -b buddy
MemFree: 3134992 kB
flags page-count MB symbolic-flags long-symbolic-flags
0x0000000000000400 779272 3044 __________B_______________________________ buddy
0x0000000000000c00 4385 17 __________BM______________________________ buddy,mmap
total 783657 3061
783657 pages is 3134628 kB (roughly consistent with the global counter,)
so it's OK.
[akpm@linux-foundation.org: update comment, per Naoya]
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Vladimir Davydov <vdavydov@virtuozzo.com>>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull USB updates from Greg KH:
"Here is the big USB patchset for 4.6-rc1.
The normal mess is here, gadget and xhci fixes and updates, and lots
of other driver updates and cleanups as well. Full details are in the
shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (266 commits)
USB: core: let USB device know device node
usb: devio: Add ioctl to disallow detaching kernel USB drivers.
usb: gadget: f_acm: Fix configfs attr name
usb: udc: lpc32xx: remove USB PLL and USB OTG clock management
usb: udc: lpc32xx: remove direct access to clock controller registers
usb: udc: lpc32xx: switch to clock prepare/unprepare model
usb: renesas_usbhs: gadget: fix giveback status code in usbhsg_pipe_disable()
usb: gadget: renesas_usb3: Use ARCH_RENESAS
usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma()
usb: dwc2: Add support for Lantiq ARX and XRX SoCs
usb: phy: generic: Handle late registration of gadget
usb: gadget: bdc_udc: fix race condition in bdc_udc_exit()
usb: musb: core: added missing const qualifier to musb_hdrc_platform_data::config
usb: dwc2: Move host-specific core functions into hcd.c
usb: dwc2: Move register save and restore functions
usb: dwc2: Use kmem_cache_free()
usb: dwc2: host: If using uframe scheduler, end splits better
usb: dwc2: host: Totally redo the microframe scheduler
usb: dwc2: host: Properly set even/odd frame
usb: dwc2: host: Add dwc2_hcd_get_future_frame_number() call
...
Pull tty/serial updates from Greg KH:
"Here's the big tty/serial driver pull request for 4.6-rc1.
Lots of changes in here, Peter has been on a tear again, with lots of
refactoring and bugs fixes, many thanks to the great work he has been
doing. Lots of driver updates and fixes as well, full details in the
shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (220 commits)
serial: 8250: describe CONFIG_SERIAL_8250_RSA
serial: samsung: optimize UART rx fifo access routine
serial: pl011: add mark/space parity support
serial: sa1100: make sa1100_register_uart_fns a function
tty: serial: 8250: add MOXA Smartio MUE boards support
serial: 8250: convert drivers to use up_to_u8250p()
serial: 8250/mediatek: fix building with SERIAL_8250=m
serial: 8250/ingenic: fix building with SERIAL_8250=m
serial: 8250/uniphier: fix modular build
Revert "drivers/tty/serial: make 8250/8250_ingenic.c explicitly non-modular"
Revert "drivers/tty/serial: make 8250/8250_mtk.c explicitly non-modular"
serial: mvebu-uart: initial support for Armada-3700 serial port
serial: mctrl_gpio: Add missing module license
serial: ifx6x60: avoid uninitialized variable use
tty/serial: at91: fix bad offset for UART timeout register
tty/serial: at91: restore dynamic driver binding
serial: 8250: Add hardware dependency to RT288X option
TTY, devpts: document pty count limiting
tty: goldfish: support platform_device with id -1
drivers: tty: goldfish: Add device tree bindings
...
Pull char/misc updates from Greg KH:
"Here is the big char/misc driver update for 4.6-rc1.
The majority of the patches here is hwtracing and some new mic
drivers, but there's a lot of other driver updates as well. Full
details in the shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'char-misc-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (238 commits)
goldfish: Fix build error of missing ioremap on UM
nvmem: mediatek: Fix later provider initialization
nvmem: imx-ocotp: Fix return value of imx_ocotp_read
nvmem: Fix dependencies for !HAS_IOMEM archs
char: genrtc: replace blacklist with whitelist
drivers/hwtracing: make coresight-etm-perf.c explicitly non-modular
drivers: char: mem: fix IS_ERROR_VALUE usage
char: xillybus: Fix internal data structure initialization
pch_phub: return -ENODATA if ROM can't be mapped
Drivers: hv: vmbus: Support kexec on ws2012 r2 and above
Drivers: hv: vmbus: Support handling messages on multiple CPUs
Drivers: hv: utils: Remove util transport handler from list if registration fails
Drivers: hv: util: Pass the channel information during the init call
Drivers: hv: vmbus: avoid unneeded compiler optimizations in vmbus_wait_for_unload()
Drivers: hv: vmbus: remove code duplication in message handling
Drivers: hv: vmbus: avoid wait_for_completion() on crash
Drivers: hv: vmbus: don't loose HVMSG_TIMER_EXPIRED messages
misc: at24: replace memory_accessor with nvmem_device_read
eeprom: 93xx46: extend driver to plug into the NVMEM framework
eeprom: at25: extend driver to plug into the NVMEM framework
...
Pull driver core updates from Greg KH:
"Just a few patches this time around for the 4.6-rc1 merge window.
Largest is a new firmware driver, but there are some other updates to
the driver core in here as well, the shortlog has the details.
All have been in linux-next for a while with no reported issues"
* tag 'driver-core-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Revert "driver-core: platform: probe of-devices only using list of compatibles"
firmware: qemu config needs I/O ports
firmware: qemu_fw_cfg.c: fix typo FW_CFG_DATA_OFF
driver-core: platform: probe of-devices only using list of compatibles
driver-core: platform: fix typo in documentation for multi-driver helper
component: remove impossible condition
drivers: dma-coherent: simplify dma_init_coherent_memory return value
devicetree: update documentation for fw_cfg ARM bindings
firmware: create directory hierarchy for sysfs fw_cfg entries
firmware: introduce sysfs driver for QEMU's fw_cfg device
kobject: export kset_find_obj() for module use
driver core: bus: use to_subsys_private and to_device_private_bus
driver core: bus: use list_for_each_entry*
debugfs: Add stub function for debugfs_create_automount().
kernfs: make kernfs_walk_ns() use kernfs_pr_cont_buf[]
Pull VFIO updates from Alex Williamson:
"Various enablers for assignment of Intel graphics devices and future
support of vGPU devices (Alex Williamson). This includes
- Handling the vfio type1 interface as an API rather than a specific
implementation, allowing multiple type1 providers.
- Capability chains, similar to PCI device capabilities, that allow
extending ioctls. Extensions here include device specific regions
and sparse mmap descriptions. The former is used to expose non-PCI
regions for IGD, including the OpRegion (particularly the Video
BIOS Table), and read only PCI config access to the host and LPC
bridge as drivers often depend on identifying those devices.
Sparse mmaps here are used to describe the MSIx vector table, which
vfio has always protected from mmap, but never had an API to
explicitly define that protection. In future vGPU support this is
expected to allow the description of PCI BARs that may mix direct
access and emulated access within a single region.
- The ability to expose the shadow ROM as an option ROM as IGD use
cases may rely on the ROM even though the physical device does not
make use of a PCI option ROM BAR"
* tag 'vfio-v4.6-rc1' of git://github.com/awilliam/linux-vfio:
vfio/pci: return -EFAULT if copy_to_user fails
vfio/pci: Expose shadow ROM as PCI option ROM
vfio/pci: Intel IGD host and LCP bridge config space access
vfio/pci: Intel IGD OpRegion support
vfio/pci: Enable virtual register in PCI config space
vfio/pci: Add infrastructure for additional device specific regions
vfio: Define device specific region type capability
vfio/pci: Include sparse mmap capability for MSI-X table regions
vfio: Define sparse mmap capability for regions
vfio: Add capability chain helpers
vfio: Define capability chains
vfio: If an IOMMU backend fails, keep looking
vfio/pci: Fix unsigned comparison overflow
Pull power supply and reset changes from Sebastian Reichel:
- add types for USB Type C and PD chargers
- add act8945a charger driver
- add ACPI/DT bindings for goldfish-battery
- add support for versatile reset controller
- misc fixes
* tag 'for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (24 commits)
power: pm2301-charger: use __maybe_unused to hide pm functions
power: ipaq-micro-battery: use __maybe_unused to hide pm functions
power_supply: 88pm860x_charger: do not pass NULL to power_supply_put
jz4740-battery: Correct voltage change check
power_supply: lp8788-charger: initialize boolean 'found'
goldfish: Enable ACPI-based enumeration for goldfish battery
power: goldfish_battery: add devicetree bindings
power: act8945a: add charger driver for ACT8945A
power: add documentation for ACT8945A's charger DT bindings
ARM: dts: n900: Rename isp1704 to isp1707 to match correct name
power_supply: bq27xxx_battery: Add of modalias and match table when CONFIG_OF is enabled
power_supply: bq2415x_charger: Add of modalias and match table when CONFIG_OF is enabled
power_supply: bq2415x_charger: Do not add acpi modalias when CONFIG_ACPI is not enabled
power_supply: isp1704_charger: Add compatible of match for nxp,isp1707
power_supply: isp1704_charger: Error messages when probe fail
power_supply: Add types for USB Type C and PD chargers
power: bq24735-charger: add 'ti,external-control' option
power: bq24735-charger: document 'ti,external-control' option
power: bq24735-charger: fix failed i2c with ac-detect
power: reset: Fix dependencies for !HAS_IOMEM archs
...
Pull dmaengine updates from Vinod Koul:
"This is smallish update with minor changes to core and new driver and
usual updates. Nothing super exciting here..
- We have made slave address as physical to enable driver to do the
mapping.
- We now expose the maxburst for slave dma as new capability so
clients can know this and program accordingly
- addition of device synchronize callbacks on omap and edma.
- pl330 updates to support DMAFLUSHP for Rockchip platforms.
- Updates and improved sg handling in Xilinx VDMA driver.
- New hidma qualcomm dma driver, though some bits are still in
progress"
* tag 'dmaengine-4.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (40 commits)
dmaengine: IOATDMA: revise channel reset workaround on CB3.3 platforms
dmaengine: add Qualcomm Technologies HIDMA channel driver
dmaengine: add Qualcomm Technologies HIDMA management driver
dmaengine: hidma: Add Device Tree binding
dmaengine: qcom_bam_dma: move to qcom directory
dmaengine: tegra: Move of_device_id table near to its user
dmaengine: xilinx_vdma: Remove unnecessary variable initializations
dmaengine: sirf: use __maybe_unused to hide pm functions
dmaengine: rcar-dmac: clear pertinence number of channels
dmaengine: sh: shdmac: don't open code of_device_get_match_data()
dmaengine: tegra: don't open code of_device_get_match_data()
dmaengine: qcom_bam_dma: Make driver work for BE
dmaengine: sun4i: support module autoloading
dma/mic_x100_dma: IS_ERR() vs PTR_ERR() typo
dmaengine: xilinx_vdma: Use readl_poll_timeout instead of do while loop's
dmaengine: xilinx_vdma: Simplify spin lock handling
dmaengine: xilinx_vdma: Fix issues with non-parking mode
dmaengine: xilinx_vdma: Improve SG engine handling
dmaengine: pl330: fix to support the burst mode
dmaengine: make slave address physical
...
Based on draft-ietf-nfsv4-scsi-layout-05 after the WG last call.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Pull security layer updates from James Morris:
"There are a bunch of fixes to the TPM, IMA, and Keys code, with minor
fixes scattered across the subsystem.
IMA now requires signed policy, and that policy is also now measured
and appraised"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (67 commits)
X.509: Make algo identifiers text instead of enum
akcipher: Move the RSA DER encoding check to the crypto layer
crypto: Add hash param to pkcs1pad
sign-file: fix build with CMS support disabled
MAINTAINERS: update tpmdd urls
MODSIGN: linux/string.h should be #included to get memcpy()
certs: Fix misaligned data in extra certificate list
X.509: Handle midnight alternative notation in GeneralizedTime
X.509: Support leap seconds
Handle ISO 8601 leap seconds and encodings of midnight in mktime64()
X.509: Fix leap year handling again
PKCS#7: fix unitialized boolean 'want'
firmware: change kernel read fail to dev_dbg()
KEYS: Use the symbol value for list size, updated by scripts/insert-sys-cert
KEYS: Reserve an extra certificate symbol for inserting without recompiling
modsign: hide openssl output in silent builds
tpm_tis: fix build warning with tpm_tis_resume
ima: require signed IMA policy
ima: measure and appraise the IMA policy itself
ima: load policy using path
...
Pull crypto update from Herbert Xu:
"Here is the crypto update for 4.6:
API:
- Convert remaining crypto_hash users to shash or ahash, also convert
blkcipher/ablkcipher users to skcipher.
- Remove crypto_hash interface.
- Remove crypto_pcomp interface.
- Add crypto engine for async cipher drivers.
- Add akcipher documentation.
- Add skcipher documentation.
Algorithms:
- Rename crypto/crc32 to avoid name clash with lib/crc32.
- Fix bug in keywrap where we zero the wrong pointer.
Drivers:
- Support T5/M5, T7/M7 SPARC CPUs in n2 hwrng driver.
- Add PIC32 hwrng driver.
- Support BCM6368 in bcm63xx hwrng driver.
- Pack structs for 32-bit compat users in qat.
- Use crypto engine in omap-aes.
- Add support for sama5d2x SoCs in atmel-sha.
- Make atmel-sha available again.
- Make sahara hashing available again.
- Make ccp hashing available again.
- Make sha1-mb available again.
- Add support for multiple devices in ccp.
- Improve DMA performance in caam.
- Add hashing support to rockchip"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits)
crypto: qat - remove redundant arbiter configuration
crypto: ux500 - fix checks of error code returned by devm_ioremap_resource()
crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
crypto: qat - Change the definition of icp_qat_uof_regtype
hwrng: exynos - use __maybe_unused to hide pm functions
crypto: ccp - Add abstraction for device-specific calls
crypto: ccp - CCP versioning support
crypto: ccp - Support for multiple CCPs
crypto: ccp - Remove check for x86 family and model
crypto: ccp - memset request context to zero during import
lib/mpi: use "static inline" instead of "extern inline"
lib/mpi: avoid assembler warning
hwrng: bcm63xx - fix non device tree compatibility
crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode.
crypto: qat - The AE id should be less than the maximal AE number
lib/mpi: Endianness fix
crypto: rockchip - add hash support for crypto engine in rk3288
crypto: xts - fix compile errors
crypto: doc - add skcipher API documentation
crypto: doc - update AEAD AD handling
...
Remove the livepatch module notifier in favor of directly enabling and
disabling patches to modules in the module loader. Hard-coding the
function calls ensures that ftrace_module_enable() is run before
klp_module_coming() during module load, and that klp_module_going() is
run before ftrace_release_mod() during module unload. This way, ftrace
and livepatch code is run in the correct order during the module
load/unload sequence without dependence on the module notifier call chain.
Signed-off-by: Jessica Yu <jeyu@redhat.com>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull fbdev updates from Tomi Valkeinen:
- Miscallaneous small fixes to various fbdev drivers
- Remove fb_rotate, which was never used
- pmag fb improvements
* tag 'fbdev-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (21 commits)
xen kconfig: don't "select INPUT_XEN_KBDDEV_FRONTEND"
video: fbdev: sis: remove unused variable
drivers/video: make fbdev/sunxvr2500.c explicitly non-modular
drivers/video: make fbdev/sunxvr1000.c explicitly non-modular
drivers/video: make fbdev/sunxvr500.c explicitly non-modular
video: exynos: fix modular build
fbdev: da8xx-fb: fix videomodes of lcd panels
fbdev: kill fb_rotate
video: fbdev: bt431: Correct cursor format control macro
video: fbdev: pmag-ba-fb: Optimize Bt455 colormap addressing
video: fbdev: pmag-ba-fb: Fix and rework Bt455 colormap handling
video: fbdev: bt455: Remove unneeded colormap helpers for cursor support
video: fbdev: pmag-aa-fb: Report video timings
video: fbdev: pmag-aa-fb: Enable building as a module
video: fbdev: pmag-aa-fb: Adapt to current APIs
video: fbdev: pmag-ba-fb: Fix the lower margin size
fbdev: sh_mobile_lcdc: Use ARCH_RENESAS
fbdev: n411: check return value
fbdev: exynos: fix IS_ERR_VALUE usage
video: Use bool instead int pointer for get_opt_bool() argument
...
The PM clocks framework requires clients to pass either a con-id or a
valid clk pointer in order to add a clock to a device. Add a new
function of_pm_clk_add_clks() to allows device clocks to be retrieved
from device-tree and populated for a given device. Note that it is
not necessary to make the compilation of this new function dependent
upon CONFIG_OF because there are stubs functions for the device-tree
APIs used.
In order to handle errors encountered when adding clocks from
device-tree, add a function pm_clk_remove_clk() to remove any clocks
(using a pointer to the clk structure) that have been added
successfully before the error occurred.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull libnvdimm updates from Dan Williams:
- Asynchronous address range scrub:
Given the capacities of next generation persistent memory devices a
scrub operation to find all poison may take 10s of seconds. We
want this scrub work to be done asynchronously with the rest of
system initialization, so we move it out of line from the NFIT
probing, i.e. acpi_nfit_add().
- Clear poison:
ACPI 6.1 introduces the ability to send "clear error" commands to
the ACPI0012:00 device representing the root of an "nvdimm bus".
Similar to relocating a bad block on a disk, this support clears
media errors in response to a write.
- Persistent memory resource tracking:
A persistent memory range may be designated as simply "reserved" by
platform firmware in the efi/e820 memory map. Later when the NFIT
driver loads it discovers that the range is "Persistent Memory".
The NFIT bus driver inserts a resource to advertise that
"persistent" attribute in the system resource tree for /proc/iomem
and kernel-internal usages.
- Miscellaneous cleanups and fixes:
Workaround section misaligned pmem ranges when allocating a struct
page memmap, fix handling of the read-only case in the ioctl path,
and clean up block device major number allocation.
* tag 'libnvdimm-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (26 commits)
libnvdimm, pmem: clear poison on write
libnvdimm, pmem: fix kmap_atomic() leak in error path
nvdimm/btt: don't allocate unused major device number
nvdimm/blk: don't allocate unused major device number
pmem: don't allocate unused major device number
ACPI: Change NFIT driver to insert new resource
resource: Export insert_resource and remove_resource
resource: Add remove_resource interface
resource: Change __request_region to inherit from immediate parent
libnvdimm, pmem: fix ia64 build, use PHYS_PFN
nfit, libnvdimm: clear poison command support
libnvdimm, pfn: 'resource'-address and 'size' attributes for pfn devices
libnvdimm, pmem: adjust for section collisions with 'System RAM'
libnvdimm, pmem: fix 'pfn' support for section-misaligned namespaces
libnvdimm: Fix security issue with DSM IOCTL.
libnvdimm: Clean-up access mode check.
tools/testing/nvdimm: expand ars unit testing
nfit: disable userspace initiated ars during scrub
nfit: scrub and register regions in a workqueue
nfit, libnvdimm: async region scrub workqueue
...
Pull device mapper updates from Mike Snitzer:
- Most attention this cycle went to optimizing blk-mq request-based DM
(dm-mq) that is used exclussively by DM multipath:
- A stable fix for dm-mq that eliminates excessive context
switching offers the biggest performance improvement (for both
IOPs and throughput).
- But more work is needed, during the next cycle, to reduce
spinlock contention in DM multipath on large NUMA systems.
- A stable fix for a NULL pointer seen when DM stats is enabled on a DM
multipath device that must requeue an IO due to path failure.
- A stable fix for DM snapshot to disallow the COW and origin devices
from being identical. This amounts to graceful failure in the face
of userspace error because these devices shouldn't ever be identical.
- Stable fixes for DM cache and DM thin provisioning to address crashes
seen if/when their respective metadata device experiences failures
that cause the transition to 'fail_io' mode.
- The DM cache 'mq' policy is now an alias for the 'smq' policy. The
'smq' policy proved to be consistently better than 'mq'. As such
'mq', with all its complex user-facing tunables, has been eliminated.
- Improve DM thin provisioning to consistently return -ENOSPC once the
thin-pool's data volume is out of space.
- Improve DM core to properly handle error propagation if
bio_integrity_clone() fails in clone_bio().
- Other small cleanups and improvements to DM core.
* tag 'dm-4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (41 commits)
dm: fix rq_end_stats() NULL pointer in dm_requeue_original_request()
dm thin: consistently return -ENOSPC if pool has run out of data space
dm cache: bump the target version
dm cache: make sure every metadata function checks fail_io
dm: add missing newline between DM_DEBUG_BLOCK_STACK_TRACING and DM_BUFIO
dm cache policy smq: clarify that mq registration failure was for 'mq'
dm: return error if bio_integrity_clone() fails in clone_bio()
dm thin metadata: don't issue prefetches if a transaction abort has failed
dm snapshot: disallow the COW and origin devices from being identical
dm cache: make the 'mq' policy an alias for 'smq'
dm: drop unnecessary assignment of md->queue
dm: reorder 'struct mapped_device' members to fix alignment and holes
dm: remove dummy definition of 'struct dm_table'
dm: add 'dm_numa_node' module parameter
dm thin metadata: remove needless newline from subtree_dec() DMERR message
dm mpath: cleanup reinstate_path() et al based on code review
dm mpath: remove __pgpath_busy forward declaration, rename to pgpath_busy
dm mpath: switch from 'unsigned' to 'bool' for flags where appropriate
dm round robin: use percpu 'repeat_count' and 'current_path'
dm path selector: remove 'repeat_count' return from .select_path hook
...
Pull iscsi_ibft update from Konrad Rzeszutek Wilk:
"A simple patch that had been rattling around in SuSE repo"
* 'stable/for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft:
iscsi_ibft: Add prefix-len attr and display netmask
Pull power management and ACPI updates from Rafael Wysocki:
"This time the majority of changes go into cpufreq and they are
significant.
First off, the way CPU frequency updates are triggered is different
now. Instead of having to set up and manage a deferrable timer for
each CPU in the system to evaluate and possibly change its frequency
periodically, cpufreq governors set up callbacks to be invoked by the
scheduler on a regular basis (basically on utilization updates). The
"old" governors, "ondemand" and "conservative", still do all of their
work in process context (although that is triggered by the scheduler
now), but intel_pstate does it all in the callback invoked by the
scheduler with no need for any additional asynchronous processing.
Of course, this eliminates the overhead related to the management of
all those timers, but also it allows the cpufreq governor code to be
simplified quite a bit. On top of that, the common code and data
structures used by the "ondemand" and "conservative" governors are
cleaned up and made more straightforward and some long-standing and
quite annoying problems are addressed. In particular, the handling of
governor sysfs attributes is modified and the related locking becomes
more fine grained which allows some concurrency problems to be avoided
(particularly deadlocks with the core cpufreq code).
In principle, the new mechanism for triggering frequency updates
allows utilization information to be passed from the scheduler to
cpufreq. Although the current code doesn't make use of it, in the
works is a new cpufreq governor that will make decisions based on the
scheduler's utilization data. That should allow the scheduler and
cpufreq to work more closely together in the long run.
In addition to the core and governor changes, cpufreq drivers are
updated too. Fixes and optimizations go into intel_pstate, the
cpufreq-dt driver is updated on top of some modification in the
Operating Performance Points (OPP) framework and there are fixes and
other updates in the powernv cpufreq driver.
Apart from the cpufreq updates there is some new ACPICA material,
including a fix for a problem introduced by previous ACPICA updates,
and some less significant changes in the ACPI code, like CPPC code
optimizations, ACPI processor driver cleanups and support for loading
ACPI tables from initrd.
Also updated are the generic power domains framework, the Intel RAPL
power capping driver and the turbostat utility and we have a bunch of
traditional assorted fixes and cleanups.
Specifics:
- Redesign of cpufreq governors and the intel_pstate driver to make
them use callbacks invoked by the scheduler to trigger CPU
frequency evaluation instead of using per-CPU deferrable timers for
that purpose (Rafael Wysocki).
- Reorganization and cleanup of cpufreq governor code to make it more
straightforward and fix some concurrency problems in it (Rafael
Wysocki, Viresh Kumar).
- Cleanup and improvements of locking in the cpufreq core (Viresh
Kumar).
- Assorted cleanups in the cpufreq core (Rafael Wysocki, Viresh
Kumar, Eric Biggers).
- intel_pstate driver updates including fixes, optimizations and a
modification to make it enable enable hardware-coordinated P-state
selection (HWP) by default if supported by the processor (Philippe
Longepe, Srinivas Pandruvada, Rafael Wysocki, Viresh Kumar, Felipe
Franciosi).
- Operating Performance Points (OPP) framework updates to improve its
handling of voltage regulators and device clocks and updates of the
cpufreq-dt driver on top of that (Viresh Kumar, Jon Hunter).
- Updates of the powernv cpufreq driver to fix initialization and
cleanup problems in it and correct its worker thread handling with
respect to CPU offline, new powernv_throttle tracepoint (Shilpasri
Bhat).
- ACPI cpufreq driver optimization and cleanup (Rafael Wysocki).
- ACPICA updates including one fix for a regression introduced by
previos changes in the ACPICA code (Bob Moore, Lv Zheng, David Box,
Colin Ian King).
- Support for installing ACPI tables from initrd (Lv Zheng).
- Optimizations of the ACPI CPPC code (Prashanth Prakash, Ashwin
Chaugule).
- Support for _HID(ACPI0010) devices (ACPI processor containers) and
ACPI processor driver cleanups (Sudeep Holla).
- Support for ACPI-based enumeration of the AMBA bus (Graeme Gregory,
Aleksey Makarov).
- Modification of the ACPI PCI IRQ management code to make it treat
255 in the Interrupt Line register as "not connected" on x86 (as
per the specification) and avoid attempts to use that value as a
valid interrupt vector (Chen Fan).
- ACPI APEI fixes related to resource leaks (Josh Hunt).
- Removal of modularity from a few ACPI drivers (BGRT, GHES,
intel_pmic_crc) that cannot be built as modules in practice (Paul
Gortmaker).
- PNP framework update to make it treat ACPI_RESOURCE_TYPE_SERIAL_BUS
as a valid resource type (Harb Abdulhamid).
- New device ID (future AMD I2C controller) in the ACPI driver for
AMD SoCs (APD) and in the designware I2C driver (Xiangliang Yu).
- Assorted ACPI cleanups (Colin Ian King, Kaiyen Chang, Oleg Drokin).
- cpuidle menu governor optimization to avoid a square root
computation in it (Rasmus Villemoes).
- Fix for potential use-after-free in the generic device properties
framework (Heikki Krogerus).
- Updates of the generic power domains (genpd) framework including
support for multiple power states of a domain, fixes and debugfs
output improvements (Axel Haslam, Jon Hunter, Laurent Pinchart,
Geert Uytterhoeven).
- Intel RAPL power capping driver updates to reduce IPI overhead in
it (Jacob Pan).
- System suspend/hibernation code cleanups (Eric Biggers, Saurabh
Sengar).
- Year 2038 fix for the process freezer (Abhilash Jindal).
- turbostat utility updates including new features (decoding of more
registers and CPUID fields, sub-second intervals support, GFX MHz
and RC6 printout, --out command line option), fixes (syscall jitter
detection and workaround, reductioin of the number of syscalls
made, fixes related to Xeon x200 processors, compiler warning
fixes) and cleanups (Len Brown, Hubert Chrzaniuk, Chen Yu)"
* tag 'pm+acpi-4.6-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (182 commits)
tools/power turbostat: bugfix: TDP MSRs print bits fixing
tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump
tools/power turbostat: call __cpuid() instead of __get_cpuid()
tools/power turbostat: indicate SMX and SGX support
tools/power turbostat: detect and work around syscall jitter
tools/power turbostat: show GFX%rc6
tools/power turbostat: show GFXMHz
tools/power turbostat: show IRQs per CPU
tools/power turbostat: make fewer systems calls
tools/power turbostat: fix compiler warnings
tools/power turbostat: add --out option for saving output in a file
tools/power turbostat: re-name "%Busy" field to "Busy%"
tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding
tools/power turbostat: Intel Xeon x200: fix erroneous bclk value
tools/power turbostat: allow sub-sec intervals
ACPI / APEI: ERST: Fixed leaked resources in erst_init
ACPI / APEI: Fix leaked resources
intel_pstate: Do not skip samples partially
intel_pstate: Remove freq calculation from intel_pstate_calc_busy()
intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance()
...
Before 2e91fa7f6d ("cgroup: keep zombies associated with their
original cgroups"), all dead tasks were associated with init_css_set.
If a zombie task is requested for migration, while migration prep
operations would still be performed on init_css_set, the actual
migration would ignore zombie tasks. As init_css_set is always valid,
this worked fine.
However, after 2e91fa7f6d, zombie tasks stay with the css_set it was
associated with at the time of death. Let's say a task T associated
with cgroup A on hierarchy H-1 and cgroup B on hiearchy H-2. After T
becomes a zombie, it would still remain associated with A and B. If A
only contains zombie tasks, it can be removed. On removal, A gets
marked offline but stays pinned until all zombies are drained. At
this point, if migration is initiated on T to a cgroup C on hierarchy
H-2, migration path would try to prepare T's css_set for migration and
trigger the following.
WARNING: CPU: 0 PID: 1576 at kernel/cgroup.c:474 cgroup_get+0x121/0x160()
CPU: 0 PID: 1576 Comm: bash Not tainted 4.4.0-work+ #289
...
Call Trace:
[<ffffffff8127e63c>] dump_stack+0x4e/0x82
[<ffffffff810445e8>] warn_slowpath_common+0x78/0xb0
[<ffffffff810446d5>] warn_slowpath_null+0x15/0x20
[<ffffffff810c33e1>] cgroup_get+0x121/0x160
[<ffffffff810c349b>] link_css_set+0x7b/0x90
[<ffffffff810c4fbc>] find_css_set+0x3bc/0x5e0
[<ffffffff810c5269>] cgroup_migrate_prepare_dst+0x89/0x1f0
[<ffffffff810c7547>] cgroup_attach_task+0x157/0x230
[<ffffffff810c7a17>] __cgroup_procs_write+0x2b7/0x470
[<ffffffff810c7bdc>] cgroup_tasks_write+0xc/0x10
[<ffffffff810c4790>] cgroup_file_write+0x30/0x1b0
[<ffffffff811c68fc>] kernfs_fop_write+0x13c/0x180
[<ffffffff81151673>] __vfs_write+0x23/0xe0
[<ffffffff81152494>] vfs_write+0xa4/0x1a0
[<ffffffff811532d4>] SyS_write+0x44/0xa0
[<ffffffff814af2d7>] entry_SYSCALL_64_fastpath+0x12/0x6f
It doesn't make sense to prepare migration for css_sets pointing to
dead cgroups as they are guaranteed to contain only zombies which are
ignored later during migration. This patch makes cgroup destruction
path mark all affected css_sets as dead and updates the migration path
to ignore them during preparation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 2e91fa7f6d ("cgroup: keep zombies associated with their original cgroups")
Cc: stable@vger.kernel.org # v4.4+
NFS: NFSoRDMA Client Side Changes
These patches include several bugfixes and cleanups for the NFSoRDMA client.
This includes bugfixes for NFS v4.1, proper RDMA_ERROR handling, and fixes
from the recent workqueue swicchover. These patches also switch xprtrdma to
use the new CQ API
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
* tag 'nfs-rdma-4.6-1' of git://git.linux-nfs.org/projects/anna/nfs-rdma: (787 commits)
xprtrdma: Use new CQ API for RPC-over-RDMA client send CQs
xprtrdma: Use an anonymous union in struct rpcrdma_mw
xprtrdma: Use new CQ API for RPC-over-RDMA client receive CQs
xprtrdma: Serialize credit accounting again
xprtrdma: Properly handle RDMA_ERROR replies
rpcrdma: Add RPCRDMA_HDRLEN_ERR
xprtrdma: Do not wait if ib_post_send() fails
xprtrdma: Segment head and tail XDR buffers on page boundaries
xprtrdma: Clean up dprintk format string containing a newline
xprtrdma: Clean up physical_op_map()
xprtrdma: Clean up unused RPCRDMA_INLINE_PAD_THRESH macro
Some watchdogs require a minimum time between heartbeats.
Examples are the watchdogs in DA9062 and AT91SAM9x.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The WDOG_HW_RUNNING flag is expected to be set by watchdog drivers if
the hardware watchdog is running. If the flag is set, the watchdog
subsystem will ping the watchdog even if the watchdog device is closed.
The watchdog driver stop function is now optional and may be omitted
if the watchdog can not be stopped. If stopping the watchdog is not
possible but the driver implements a stop function, it is responsible
to set the WDOG_HW_RUNNING flag in its stop function.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Introduce an optional hardware maximum heartbeat in the watchdog core.
The hardware maximum heartbeat can be lower than the maximum timeout.
Drivers can set the maximum hardware heartbeat value in the watchdog data
structure. If the configured timeout exceeds the maximum hardware heartbeat,
the watchdog core enables a timer function to assist sending keepalive
requests to the watchdog driver.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Merge first patch-bomb from Andrew Morton:
- some misc things
- ofs2 updates
- about half of MM
- checkpatch updates
- autofs4 update
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (120 commits)
autofs4: fix string.h include in auto_dev-ioctl.h
autofs4: use pr_xxx() macros directly for logging
autofs4: change log print macros to not insert newline
autofs4: make autofs log prints consistent
autofs4: fix some white space errors
autofs4: fix invalid ioctl return in autofs4_root_ioctl_unlocked()
autofs4: fix coding style line length in autofs4_wait()
autofs4: fix coding style problem in autofs4_get_set_timeout()
autofs4: coding style fixes
autofs: show pipe inode in mount options
kallsyms: add support for relative offsets in kallsyms address table
kallsyms: don't overload absolute symbol type for percpu symbols
x86: kallsyms: disable absolute percpu symbols on !SMP
checkpatch: fix another left brace warning
checkpatch: improve UNSPECIFIED_INT test for bare signed/unsigned uses
checkpatch: warn on bare unsigned or signed declarations without int
checkpatch: exclude asm volatile from complex macro check
mm: memcontrol: drop unnecessary lru locking from mem_cgroup_migrate()
mm: migrate: consolidate mem_cgroup_migrate() calls
mm/compaction: speed up pageblock_pfn_to_page() when zone is contiguous
...
This patch adds macros to define masks and bits for imx6sx
PCIe registers. This is based on a patch by Richard Zhu.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Regmap config max_register field should contain number of
device last register, however num_reg_defaults_raw field
should be set to register count instead
(usually one register more than max_register).
tps65090 driver had both of these fields set to the same value,
fix this by introducing separate defines for max register
number and total count of registers.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
When CONFIG_MFD_SYSCON is disabled, have the function stubs return
ENOTSUPP to indicate the syscon functionality is not available.
There are currently no callers that depend on the ENOSYS return value.
This patchfixes a checkpatch warning:
WARNING: ENOSYS means 'invalid syscall nr' and nothing else
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Regmap config max_register field should contain number of
device last register, however num_reg_defaults_raw field
should be set to register count instead
(usually one register more than max_register).
as3711 driver had both of these fields set to the same value,
fix this by introducing separate defines for max register
number and total count of registers.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Regmap config max_register field should contain number of
device last register, however num_reg_defaults_raw field
should be set to register count instead
(usually one register more than max_register).
rc5t583 driver had both of these fields set to the same value,
fix this by introducing separate defines for max register
number and total count of registers.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
MT6323 has the INT_CON and INT_STATUS located at a different position.
Make the registers locations configurable.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add support for the TPS65912 device. It provides communication
through I2C and contains the following components:
- Regulators
- Load switches
- GPO controller
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Pull LED updates from Jacek Anaszewski:
"LED core improvements:
- Fix misleading comment after workqueue removal from drivers
- Avoid error message when a USB LED device is unplugged
- Add helpers for calling brightness_set(_blocking)
LED triggers:
- Simplify led_trigger_store by using sysfs_streq()
LED class drivers improvements:
- Improve wording and formatting in a comment: lp3944
- Fix return value check in create_gpio_led(): leds-gpio
- Use GPIOF_OUT_INIT_LOW instead of hardcoded zero: leds-gpio
- Use devm_led_classdev_register(): leds-lm3533, leds-lm3533,
leds-lp8788, leds-wm831x-status, leds-s3c24xx, leds-s3c24xx,
leds-max8997.
New LED class driver:
- Add driver for the ISSI IS31FL32xx family of LED controllers.
Device Tree documentation:
- of: Add vendor prefixes for Integrated Silicon Solutions Inc.
(issi) and Si-En Technology (si-en).
- DT: Add common bindings for Si-En Technology SN3216/18 and
IS31FL32xx family of LED controllers, since they seem to be the
same hardware, just rebranded"
* tag 'leds_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
leds: triggers: simplify led_trigger_store
leds: max8997: Use devm_led_classdev_register
leds: da903x: Use devm_led_classdev_register
leds: s3c24xx: Use devm_led_classdev_register
leds: wm831x-status: Use devm_led_classdev_register
leds: lp8788: Use devm_led_classdev_register
leds: 88pm860x: Use devm_led_classdev_register
leds: Add SN3218 and SN3216 support to the IS31FL32XX driver
of: Add vendor prefix for Si-En Technology
leds: Add driver for the ISSI IS31FL32xx family of LED controllers
DT: leds: Add binding for the ISSI IS31FL32xx family of LED controllers
DT: Add vendor prefix for Integrated Silicon Solutions Inc.
leds: lm3533: Use devm_led_classdev_register
leds: gpio: Use GPIOF_OUT_INIT_LOW instead of hardcoded zero
leds: core: add helpers for calling brightness_set(_blocking)
leds: leds-gpio: Fix return value check in create_gpio_led()
leds: lp3944: improve wording and formatting in a comment
leds: core: avoid error message when a USB LED device is unplugged
leds: core: fix misleading comment after workqueue removal from drivers
Pull RTC updates from Alexandre Belloni:
"Core:
- New sysfs interface to set and read clock offset
- Drivers can now be both I2C and SPI (see pcf2127 and ds3232)
New drivers:
- Alphascale ASM9260
- Epson RX6110SA
- Maxim max20024 and max77620 (in max77686)
- Microchip PIC32
- NXP pcf2129 (in pcf2127)
Subsystem wide cleanups:
- remove IRQF_EARLY_RESUME when unecessary
Drivers:
- ds1307: clock output, temperature sensor and wakeup-source support
- ds1685: actually spin forever in poweroff error path
- ds3232: many cleanups
- ds3234: merged in ds3232
- hym8563: fix invalid year calculation
- max77686: many cleanups
- max77802 merged in max77686
- pcf2123: cleanups and offset support
- pcf85063: cleanups
- pcf8523: propely handle oscillator stop bit
- rv3029: many cleanups, trickle charger and temperature sensor support
- rv8803: convert spin_lock to mutex_lock
- rx8025: many fixes
- vr41xx: restore alarm_irq_enable"
* tag 'rtc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (86 commits)
rtc: pcf2127: add pcf2129 device id
rtc: pcf2127: add support for spi interface
rtc: pcf2127: convert to use regmap
rtc: rv3029: Add thermometer hwmon support
rtc: rv3029: Add update_bits helper for eeprom access
rtc: ds1685: actually spin forever in poweroff error path
rtc: hym8563: fix invalid year calculation
rtc: ds3232: use rtc->ops_lock to protect alarm operations
rtc: ds3232: fix issue when irq is shared several devices
rtc: ds3232: remove unused UIE code
rtc: ds3232: add register access error checks
rtc: ds3232: fix read on /dev/rtc after RTC_AIE_ON
rtc: merge ds3232 and ds3234
rtc: ds3232: convert to use regmap
rtc: pxa: fix Kconfig indentation
rtc: rv3029: Add device tree property for trickle charger
rtc: rv3029: Add functions for EEPROM access
rtc: rv3029: Add i2c register update-bits helper
rtc: rv3029: Add missing register definitions
rtc: rv3029: Add "rv3029" I2C device id
...
Pull hwmon updates from Guenter Roeck:
- New drivers for NSA320 and LTC2990
- Added support for ADM1278 to adm1275 driver
- Added support for ncpXXxh103 to ntc_thermistor driver
- Renamed vexpress hwmon implementation
- Minor cleanups and improvements
* tag 'hwmon-for-linus-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: Create an NSA320 hardware monitoring driver
hwmon: Define binding for the nsa320-hwmon driver
hwmon: (adm1275) Add support for ADM1278
hwmon: (ntc_thermistor) Add support for ncpXXxh103
Doc: hwmon: Fix typo "montoring" in hwmon
ARM: dts: vfxxx: Add iio_hwmon node for ADC temperature channel
ARM: dts: Change iio_hwmon nodes to use hypen in node names
hwmon: (iio_hwmon) Allow the driver to accept hypen in device tree node names
hwmon: Add LTC2990 sensor driver
hwmon: (vexpress) rename vexpress hwmon implementation
Pull regulator updates from Mark Brown:
"This has been an extremely quiet release for the regulator API, aside
from bugfixes and small enhancements the only thing that really stands
out are the new drivers for Action Semiconductors ACT8945A, HiSilicon
HI665x, and the Maxim MAX20024 and MAX77620"
* tag 'regulator-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (46 commits)
regulator: pwm: Add support to have multiple instance of pwm regulator
regulator: pwm: Fix calculation of voltage-to-duty cycle
regulator: of: Use of_property_read_u32() for reading min/max
regulator: pv88060: fix incorrect clear of event register
regulator: pv88090: fix incorrect clear of event register
regulator: max77620: Add support to configure active-discharge
regulator: core: Add support for active-discharge configuration
regulator: helper: Add helper to configure active-discharge using regmap
regulator: core: Add support for active-discharge configuration
regulator: DT: Add DT property for active-discharge configuration
regulator: act8865: Specify fixed voltage of 3.3V for ACT8600's REG9
regulator: act8865: Rename platform_data field to init_data
regulator: act8865: Remove "static" from local variable
ASoC: cs4271: add regulator consumer support
regulator: max77620: Remove duplicate module alias
regulator: max77620: Eliminate duplicate code
regulator: max77620: Remove unused fields
regulator: core: fix crash in error path of regulator_register
regulator: core: Request GPIO before creating sysfs entries
regulator: gpio: don't print error on EPROBE_DEFER
...
