Auvidea (http://www.auvidea.eu/) produces embedded devices and
baseboards with a focus on audio and video technology.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Engicam providing design services of electronic systems with
high content of technology, relying on a long experience in
electronic design.
For more info visit
http://www.engicam.com/en/
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Silead Inc.specializes in touchscreen technology and got recently
introduced in a binding for the gsl1680 i2c touchscreen.
Therefore add the needed vendor-prefix as well.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Whilst we're some of the way towards a universal firmware property
interface, drivers which deal with both OF and ACPI probing end up
having to do things like this:
dev->of_node ? &dev->of_node->fwnode : dev->fwnode
This seems unnecessary, when the OF code could instead simply fill in
the device's fwnode when binding the of_node, and let the drivers use
dev->fwnode either way. Let's give it a go and see what falls out.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Add a new set of array reading functions that take a minimum and
maximum size limit and will fail if the property size is not within
the size limits. This makes it more convenient for drivers that
use variable-size DT arrays which must be bounded at both ends -
data must be at least N entries but must not overflow the array
it is being copied into. It is also more efficient than making this
functionality out of existing public functions and avoids duplication.
The existing array functions have been left in the API, since there
are a very large number of clients of those functions and their
existing functionality is still useful. This avoids turning a small
API improvement into a major kernel rework.
The old functions have been turned into mininmal static inlines calling
the new functions. The old functions had no upper limit on the actual
size of the dts entry, to preserve this functionality rather than keeping
two near-identical implementations, if the new function is called with
max=0 there is no limit on the size of the dts entry but only the min
number of elements are read.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Rob Herring <robh@kernel.org>
In preparation for adding variable-length array reads, change
of_find_property_value_of_size so that it takes an optional
maximum length. If the maximum is passed as 0, the behaviour is
unchanged and it will return a property if it's >= the requested
minimum length. If maximum is non-zero it will only return a
property whose length is min <= l <= max.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Rob Herring <robh@kernel.org>
The Synopsys DWC EQoS is a configurable IP block which supports multiple
options for bus type, clocking and reset structure, and feature list.
Extend the DT binding to define a "compatible value" for the configuration
contained in NVIDIA's Tegra186 SoC, and define some new properties and
list property entries required by that configuration.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <robh@kernel.org>
- Increase config size. When using a PCIe switch,
the previous config size only had room for one device.
- Add bus range. Inherited optional property.
- Map downstream I/O to PCI address 0. We can map it to any
address, but let's be consistent with other drivers.
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This patch corrects spelling errors in the max77693 devicetree doc,
in particular example code containing typos.
Signed-off-by: Sebastiaan Schalbroeck <schalbroeck@gmail.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
The ESP8089 chips can mostly be enumerated via their sdio interface,
but they are clocked by an external crystal which may differ from one
board to the other.
This commit adds a binding for the sdio child node for these chips,
allowing to specify the external crystal type (for now, this binding
could be be extended with e.g. OOB irq support later).
The Android driver for this chip uses a text file with key,value pairs
which gets loaded as firmware to pass this info to the firmware.
The "esp,crystal_26M_en" name is chosen to match the crystal_26M_en
key-name in that text file.
Note that at this point there only is an out of tree driver for this
hardware, there is no clear timeline / path for merging this. Still
I believe it would be good to specify the binding for this in tree
now, so that any future migration to an in tree driver will not cause
compatiblity issues.
Cc: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Updating device tree documentation with prefetchable memory
sapce.
Configuration space shifted to 64-bit address space.
Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
This patch adds missing commas to the spi-bus documentation of the
cs-gpio lines.
The device tree compiler fails if chip select lines are not
comma-separated. Fix the erroneous documentation by adding missing
commas.
Signed-off-by: Guenther Wutz <info@gunibert.de>
Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Shenzhen Sunchip Technology Co., Ltd produces TV boxes and TV dongles,
some of which are sold under other brands. Website:
<URL:http://www.sunchip-tech.com/>
Signed-off-by: Rask Ingemann Lambertsen <ccc94453@vip.cybercity.dk>
Signed-off-by: Rob Herring <robh@kernel.org>
Vendor prefixes should be listed in alphabetical order, which some of
them weren't, so this patch corrects that.
Signed-off-by: Rask Ingemann Lambertsen <ccc94453@vip.cybercity.dk>
Signed-off-by: Rob Herring <robh@kernel.org>
Since commit 183223770a ("drivers/of: Export OF changeset functions"),
the mentioned functions do all necessary locking.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Fixes: 183223770a ("drivers/of: Export OF changeset functions")
Signed-off-by: Rob Herring <robh@kernel.org>
Pull two parisc fixes from Helge Deller:
"The first patch ensures that the high-res cr16 clocksource (which was
added in kernel 4.7) gets choosen as default clocksource for parisc.
The second patch moves the #define of EREFUSED down inside errno.h and
thus unbreaks building the gccgo compiler"
* 'parisc-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix order of EREFUSED define in errno.h
parisc: Fix automatic selection of cr16 clocksource
This is an entirely new driver instead of yet another set of patches
to sb_edac.c because:
1) Mapping from PCI devices to socket/memory controller is significantly
different. Skylake scatters devices on a socket across a number of
PCI buses.
2) There is an extra level of interleaving via the "mcroute" register
that would be a little messy to squeeze into the old driver.
3) Validation is getting too expensive. Changes to sb_edac need to
be checked against Sandy Bridge, Ivy Bridge, Haswell, Broadwell and
Knights Landing.
Acked-by: Aristeu Rozanski <aris@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When building gccgo in userspace, errno.h gets parsed and the go include file
sysinfo.go is generated.
Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED
is defined later on in errno.h, this leads to go complaining that EREFUSED
isn't defined yet.
Fix this trivial problem by moving the define of EREFUSED down after
ECONNREFUSED in errno.h (and clean up the indenting while touching this line).
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Commit 54b6680090 (parisc: Add native high-resolution sched_clock()
implementation) added support to use the CPU-internal cr16 counters as reliable
clocksource with the help of HAVE_UNSTABLE_SCHED_CLOCK.
Sadly the commit missed to remove the hack which prevented cr16 to become the
default clocksource even on SMP systems.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.7+
The kernel test robot reported a usercopy failure in the new hardened
sanity checks, due to a page-crossing copy of the FPU state into the
task structure.
This happened because the kernel test robot was testing with SLOB, which
doesn't actually do the required book-keeping for slab allocations, and
as a result the hardening code didn't realize that the task struct
allocation was one single allocation - and the sanity checks fail.
Since SLOB doesn't even claim to support hardening (and you really
shouldn't use it), the straightforward solution is to just make the
usercopy hardening code depend on the allocator supporting it.
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull i2c fixes from Wolfram Sang:
"I2C has some pretty standard driver bugfixes and one minor cleanup"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: meson: Use complete() instead of complete_all()
i2c: brcmstb: Use complete() instead of complete_all()
i2c: bcm-kona: Use complete() instead of complete_all()
i2c: bcm-iproc: Use complete() instead of complete_all()
i2c: at91: fix support of the "alternative command" feature
i2c: ocores: add missed clk_disable_unprepare() on failure paths
i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer()
i2c: mux: demux-pinctrl: properly roll back when adding adapter fails
preemption before using this_cpu_ptr()
- a slight increase in DM crypt's mempool reserves to make swap ontop of
DM crypt more performant
- a few DM raid fixes to issues found while testing changes that were
merged in v4.8-rc1
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Merge tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- a stable fix for DM round robin multipath path selector to disable
preemption before using this_cpu_ptr()
- a slight increase in DM crypt's mempool reserves to make swap ontop
of DM crypt more performant
- a few DM raid fixes to issues found while testing changes that were
merged in v4.8-rc1
* tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm raid: support raid0 with missing metadata devices
dm raid: enhance attempt_restore_of_faulty_devices() to support more devices
dm raid: fix restoring of failed devices regression
dm raid: fix frozen recovery regression
dm crypt: increase mempool reserve to better support swapping
dm round robin: do not use this_cpu_ptr() without having preemption disabled
Six fairly small fixes. The ipr, mpt3sas and ses ones all trigger
oopses. The megaraid one fixes an attach failure on io mapped only
cards, the fcoe one is an obvious problem in the error path and the
aacraid one is a theoretical security issue (ability to trick the
kernel into a buffer overrun).
Signed-off-by: James E. J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Six fairly small fixes. The ipr, mpt3sas and ses ones all trigger
oopses. The megaraid one fixes an attach failure on io mapped only
cards, the fcoe one is an obvious problem in the error path and the
aacraid one is a theoretical security issue (ability to trick the
kernel into a buffer overrun)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
ses: Fix racy cleanup of /sys in remove_dev()
mpt3sas: Fix resume on WarpDrive flash cards
ipr: Fix sync scsi scan
megaraid_sas: Fix probing cards without io port
aacraid: Check size values after double-fetch from user
fcoe: Use kfree_skb() instead of kfree()
Here are a number of USB fixes for reported issues for your tree.
The normal amount of gadget fixes, xhci fixes, new device ids, and a few
other minor things. All of them have been in linux-next for a while,
the full details are in the shortlog below.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of USB fixes for reported issues for your tree.
The normal amount of gadget fixes, xhci fixes, new device ids, and a
few other minor things. All of them have been in linux-next for a
while, the full details are in the shortlog below"
* tag 'usb-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (43 commits)
xhci: don't dereference a xhci member after removing xhci
usb: xhci: Fix panic if disconnect
xhci: really enqueue zero length TRBs.
xhci: always handle "Command Ring Stopped" events
cdc-acm: fix wrong pipe type on rx interrupt xfers
usb: misc: usbtest: add fix for driver hang
usb: dwc3: gadget: stop processing on HWO set
usb: dwc3: don't set last bit for ISOC endpoints
usb: gadget: rndis: free response queue during REMOTE_NDIS_RESET_MSG
usb: udc: core: fix error handling
usb: gadget: fsl_qe_udc: off by one in setup_received_handle()
usb/gadget: fix gadgetfs aio support.
usb: gadget: composite: Fix return value in case of error
usb: gadget: uvc: Fix return value in case of error
usb: gadget: fix check in sync read from ep in gadgetfs
usb: misc: usbtest: usbtest_do_ioctl may return positive integer
usb: dwc3: fix missing platform_set_drvdata() in dwc3_of_simple_probe()
usb: phy: omap-otg: Fix missing platform_set_drvdata() in omap_otg_probe()
usb: gadget: configfs: add mutex lock before unregister gadget
usb: gadget: u_ether: fix dereference after null check coverify warning
...
Changes in this update
- regression fixes for XFS changes introduce in 4.8-rc1
- buffer IO accounting assert failure
- ENOSPC block accounting reservation issue
- DAX IO path page cache invalidation fix
- rmapbt on-disk block count in agf
- correct classification of rmap block type when updating AGFL.
- iomap support for attribute fork mapping
- regression fixes for iomap infrastructure in 4.8-rc1
- fiemap: honor FIEMAP_FLAG_SYNC
- fiemap: implement FIEMAP_FLAG_XATTR support to fix XFS regression
- make mark_page_accessed and pagefault_disable usage consistent with
other IO paths
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Merge tag 'xfs-iomap-for-linus-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs and iomap fixes from Dave Chinner:
"Changes in this update:
Regression fixes for XFS changes introduce in 4.8-rc1:
- buffer IO accounting assert failure
- ENOSPC block accounting reservation issue
- DAX IO path page cache invalidation fix
- rmapbt on-disk block count in agf
- correct classification of rmap block type when updating AGFL.
- iomap support for attribute fork mapping
Regression fixes for iomap infrastructure in 4.8-rc1:
- fiemap: honor FIEMAP_FLAG_SYNC
- fiemap: implement FIEMAP_FLAG_XATTR support to fix XFS regression
- make mark_page_accessed and pagefault_disable usage consistent with
other IO paths"
* tag 'xfs-iomap-for-linus-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: remove OWN_AG rmap when allocating a block from the AGFL
xfs: (re-)implement FIEMAP_FLAG_XATTR
xfs: simplify xfs_file_iomap_begin
iomap: mark ->iomap_end as optional
iomap: prepare iomap_fiemap for attribute mappings
iomap: fiemap should honor the FIEMAP_FLAG_SYNC flag
iomap: remove superflous pagefault_disable from iomap_write_actor
iomap: remove superflous mark_page_accessed from iomap_write_actor
xfs: store rmapbt block count in the AGF
xfs: don't invalidate whole file on DAX read/write
xfs: fix bogus space reservation in xfs_iomap_write_allocate
xfs: don't assert fail on non-async buffers on ioacct decrement
Fix a bug in it87 driver and URLs in ftsteutates driver.
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Merge tag 'hwmon-for-linus-v4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix a bug in it87 driver and URLs in ftsteutates driver"
* tag 'hwmon-for-linus-v4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (ftsteutates) Correct ftp urls in driver documentation
hwmon: (it87) Features mask must be 32 bit wide
Pull more drm fixes from Dave Airlie:
"Daniel pointed out I'd missed some i915 fixes, and I also found a
single etnaviv fix I missed.
So here they are"
* tag 'drm-fixes-for-4.8-rc3-2' of git://people.freedesktop.org/~airlied/linux:
drm/etnaviv: take GPU lock later in the submit process
drm/i915: Fix modeset handling during gpu reset, v5.
drm/i915: fix aliasing_ppgtt leak
drm/i915: fix WaInsertDummyPushConstPs
drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2
drm/i915/gen9: Give one extra block per line for SKL plane WM calculations
drm/i915: Acquire audio powerwell for HD-Audio registers
drm/i915: Add missing rpm wakelock to GGTT pread
drm/i915/fbc: FBC causes display flicker when VT-d is enabled on Skylake
drm/i915: Clean up the extra RPM ref on CHV with i915.enable_rc6=0
drm/i915: Program iboost settings for HDMI/DVI on SKL
drm/i915: Fix iboost setting for DDI with 4 lanes on SKL
drm/i915: Handle ENOSPC after failing to insert a mappable node
drm/i915: Flush GT idle status upon reset
- Couple of DT node ref counting fixes
- Fix __unflatten_device_tree for PPC PCI hotplug case
- Rework marking irq controllers as OF_POPULATED in cases where real
driver is used.
- Disable of_platform_default_populate_init on PPC. The change in
initcall order causes problems which need to be sorted out later.
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Merge tag 'devicetree-fixes-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- a couple of DT node ref counting fixes
- fix __unflatten_device_tree for PPC PCI hotplug case
- rework marking irq controllers as OF_POPULATED in cases where real
driver is used.
- disable of_platform_default_populate_init on PPC. The change in
initcall order causes problems which need to be sorted out later.
* tag 'devicetree-fixes-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: fix reference counting in of_graph_get_endpoint_by_regs
of/platform: disable the of_platform_default_populate_init() for all the ppc boards
ARM: imx6: mark GPC node as not populated after irq init to probe pm domain driver
of/irq: Mark interrupt controllers as populated before initialisation
drivers/of: Validate device node in __unflatten_device_tree()
of: Delete an unnecessary check before the function call "of_node_put"
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Merge tag '4.8-doc-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"Three small fixes for Sphinx-formatted documentation generation"
* tag '4.8-doc-fixes' of git://git.lwn.net/linux:
doc-rst: customize RTD theme, drop padding of inline literal
docs: kernel-documentation: remove some highlight directives
docs: Set the Sphinx default highlight language to "guess"
Collection of i915 fixes.
* tag 'drm-intel-fixes-2016-08-15' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Fix modeset handling during gpu reset, v5.
drm/i915: fix aliasing_ppgtt leak
drm/i915: fix WaInsertDummyPushConstPs
drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2
drm/i915/gen9: Give one extra block per line for SKL plane WM calculations
drm/i915: Acquire audio powerwell for HD-Audio registers
drm/i915: Add missing rpm wakelock to GGTT pread
drm/i915/fbc: FBC causes display flicker when VT-d is enabled on Skylake
drm/i915: Clean up the extra RPM ref on CHV with i915.enable_rc6=0
drm/i915: Program iboost settings for HDMI/DVI on SKL
drm/i915: Fix iboost setting for DDI with 4 lanes on SKL
drm/i915: Handle ENOSPC after failing to insert a mappable node
drm/i915: Flush GT idle status upon reset
Pull x86 fixes from Ingo Molnar:
"An initrd microcode loading fix, and an SMP bootup topology setup fix
to resolve crashes on SGI/UV systems if the BIOS is configured in a
certain way"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/smp: Fix __max_logical_packages value setup
x86/microcode/AMD: Fix initrd loading with CONFIG_RANDOMIZE_MEMORY=y
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, but also start/stop filter related fixes, a perf
event read() fix, a fix uncovered by fuzzing, and an uprobes leak fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Check return value of the perf_event_read() IPI
perf/core: Enable mapping of the stop filters
perf/core: Update filters only on executable mmap
perf/core: Fix file name handling for start/stop filters
perf/core: Fix event_function_local()
uprobes: Fix the memcg accounting
perf intel-pt: Fix occasional decoding errors when tracing system-wide
tools: Sync kvm related header files for arm64 and s390
perf probe: Release resources on error when handling exit paths
perf probe: Check for dup and fdopen failures
perf symbols: Fix annotation of objects with debuginfo files
perf script: Don't disable use_callchain if input is pipe
perf script: Show proper message when failed list scripts
perf jitdump: Add the right header to get the major()/minor() definitions
perf ppc64le: Fix build failure when libelf is not present
perf tools mem: Fix -t store option for record command
perf intel-pt: Fix ip compression
- Avoid a literal load with the MMU off on the CPU resume path
(potential inconsistency between cache and RAM)
- Build error with CONFIG_ACPI=n fixed
- Compiler warning in the arch/arm64/mm/dump.c code fixed
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Avoid a literal load with the MMU off on the CPU resume path
(potential inconsistency between cache and RAM)
- Build error with CONFIG_ACPI=n fixed
- Compiler warning in the arch/arm64/mm/dump.c code fixed
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix shift warning in arch/arm64/mm/dump.c
arm64: kernel: avoid literal load of virtual address with MMU off
arm64: Fix NUMA build error when !CONFIG_ACPI
Pull ARM fixes from Russell King:
"Only three fixes this time:
- Emil found an overflow problem with the memory layout sanity check.
- Ard Biesheuvel noticed that late-allocated page tables (for EFI)
weren't being properly constructed.
- Guenter Roeck reported a problem found on qemu caused by the recent
addr_limit changes"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: fix address limit restoration for undefined instructions
ARM: 8591/1: mm: use fully constructed struct pages for EFI pgd allocations
ARM: 8590/1: sanity_check_meminfo(): avoid overflow on vmalloc_limit
- Fix a hibernate core regression resulting from uncovering a
latent bug in its implementation of memory bitmaps by a recent
commit (James Morse).
- Use __pa() to compute a physical address in the x86-64 code
finalizing resume from hibernation (Rafael Wysocki).
- Update power management documentation related to system sleep
states to remove outdated information from it and to add a
description of a recently introduced hibernation debug feature
to it (Rafael Wysocki).
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Merge tag 'pm-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"More hibernation-related material: one fix for a recent regression in
the core, one small cleanup of the x86-64 resume code and a
documentation update.
Specifics:
- Fix a hibernate core regression resulting from uncovering a latent
bug in its implementation of memory bitmaps by a recent commit
(James Morse).
- Use __pa() to compute a physical address in the x86-64 code
finalizing resume from hibernation (Rafael Wysocki).
- Update power management documentation related to system sleep
states to remove outdated information from it and to add a
description of a recently introduced hibernation debug feature to
it (Rafael Wysocki)"
* tag 'pm-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / hibernate: Fix rtree_next_node() to avoid walking off list ends
x86/power/64: Use __pa() for physical address computation
PM / sleep: Update some system sleep documentation
Pull drm fixes from Dave Airlie:
"Pretty quiet so far:
- a few amdgpu/radeon fixup for pcie pm changes
- a couple of amdgpu fixes
- some build fixes
- printk fix"
* tag 'drm-fixes-for-4.8-rc3' of git://people.freedesktop.org/~airlied/linux:
drm/amdgpu: Change GART offset to 64-bit
drm/mediatek: add ARM_SMCCC dependency
drm/mediatek: add CONFIG_OF dependency
drm/mediatek: add COMMON_CLK dependency
drm/amdgpu: Fix memory trashing if UVD ring test fails
drm/amdgpu: fix vm init error path
drm/amdkfd: print doorbell offset as a hex value
Revert "drm/radeon: work around lack of upstream ACPI support for D3cold"
Revert "drm/amdgpu: work around lack of upstream ACPI support for D3cold"
After Peter's commit:
331b6d8c7a ("locking/barriers: Validate lockless_dereference() is used on a pointer type")
... we get a lot of sparse warnings (one for every rcu_dereference, and more)
since the expression here is assigning to the wrong address space.
Instead of validating that 'p' is a pointer this way, instead make
it fail compilation when it's not by using sizeof(*(p)). This will
not cause any sparse warnings (tested, likely since the address
space is irrelevant for sizeof), and will fail compilation when
'p' isn't a pointer type.
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 331b6d8c7a ("locking/barriers: Validate lockless_dereference() is used on a pointer type")
Link: http://lkml.kernel.org/r/1470909022-687-2-git-send-email-johannes@sipsolutions.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This reverts commit:
fa7d81bb3c ("drm/fb-helper: Reduce READ_ONCE(master) to lockless_dereference")
As Peter explained:
[...] lockless_dereference() is _stronger_ than READ_ONCE(), not weaker.
[...]
Also, clue is in the name: 'dereference', you don't actually dereference
the pointer here, only load it.
My next patch breaks the compile without this revert, because it assumes
you want to deference and thus also need the struct type visible (which
it isn't here), so revert it.
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1470909022-687-1-git-send-email-johannes@sipsolutions.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
When building with 48-bit VAs and 16K page configuration, it's possible
to get the following warning when building the arm64 page table dumping
code:
arch/arm64/mm/dump.c: In function ‘walk_pud’:
arch/arm64/mm/dump.c:274:102: warning: right shift count >= width of type [-Wshift-count-overflow]
This is because pud_offset(pgd, 0) performs a shift to the right by 36
while the value 0 has the type 'int' by default, therefore 32-bit.
This patch modifies all the p*_offset() uses in arch/arm64/mm/dump.c to
use 0UL for the address argument.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
