As we did with frontend.h, ca.h and dmx.h, move the struct
definition to net.h.
That should help to keep it updated, as more stuff gets
added there.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Originally, when DVB was introduced, all codecs would be part of
MPEG2 standard. That's not true anymore, as there are a large
number of codec standards used on digital TV nowadays.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The hardware description mentions that some parts are optional.
Make it clearer at the drawing.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This ioctl is supported by the DVB core, but was never
documented.
Add a documentation for it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Do minor editorial changes to improve documentation readability:
- mark literals as such;
- add table markups to hint sizes;
- define what PES means;
- instead of hardcoding devnode numbers to zero (like adapter0/) use a
question mark, to indicate that multiple devnodes may exist;
- add cross-references where useful.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several missing items at the API history. Yet,
as we're doing a significant change there, add a new entry.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The struct that contains an union of DVB parameters is
called dvb_frontend_parameters (and not FrontendParameters).
Fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
In the past, the documentation used to say that, if a CRC error
was found, a "-ECRC" error would be returned. That's not true:
the DVB core will just silently ignore such errors.
So, add an explicit note about that.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The usage of the term "DVB" at the dvb API docs is confusing,
as, right now, it can refer to either the European digital TV
standard or to the subsystem.
So, prefer calling it as "Digital TV" on most places, to avoid
ambiguity.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The device node name for CA is wrong since ever. I suspect
that the name there was before DVBv3 (with was the first API
introduced at the Kernel).
Anyway, use the right name there.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several issues on the return value for ioctls:
- Text is confusing;
- Some error codes don't exist;
- The non-generic error codes should come before the text
that points to the generic error codes;
- Tables don't contain column size hints;
- Some references are not marked as such.
Correct them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This error can be produced at least at the DVB subsystem.
As it is generic enough, document it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Instead of having one chapter per file, place all of them at
the same chapter. That better organize the chapters at the uAPI
documentation.
As a side effect, now all uAPI headers are at the same page,
at the html output, with makes easier to use it as a reference
index for the spec.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Right now, the same undocumented structs are on two places:
at ca_data_types.rst and together with their ioctls.
Move them to just one place and use the standard way to
represent them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
While we don't have any documentation for it, based on what's
there at Kaffeine and VDR, it seems that this command should
be issued before start using CA. So, document it as such.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
For most of the stuff there, documenting is easy, as the
header file contains information.
Yet, I was unable to document two data structs:
ca_msg and ca_descr
As those two structs are used by a few drivers, keep them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This ioctl seems to be some attempt to support a feature
at the bt8xx dst_ca driver. Yet, as said there, it
"needs more work". Right now, the code there is just
a boilerplate.
At the end of the day, no driver uses this ioctl, nor it is
documented anywhere (except for "needs more work").
So, get rid of it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Due to a mistake, the DVB net chapter was actually broken
into two different chapters. Fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The demux documentation is pretty poor nowadays: most of the
structs and enums aren't documented at all.
Add proper kernel-doc markups for them and use it.
Now, the demux API data structures are fully documented :-)
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This seems to be a pure fictional API :-)
It only exists at the DVB book, with no code implemeting it.
So, just get rid of it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There's no driver currently using it; it is also not
documented about what it would be supposed to do.
So, get rid of it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There's a flag defined for Digital TV demux that is not used
anywhere, called DMX_KERNEL_CLIENT. Get rid of it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Several frontend properties are specific to a subset of the
delivery systems. Make it clearer when describing each
property.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Now that frontend.h contains most documentation for the frontend,
remove the duplicated information from Documentation/ and use the
kernel-doc auto-generated one instead.
That should simplify maintainership of DVB frontend uAPI, as most
of the documentation will stick with the header file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Both CA and decoders are optional. Also, the presence or
absence has nothing to do on being a PCI card or not.
Nowadays, most hardware leaves the decoders to either the
GPU or to some ISP inside the SoC, instead of implementing
it inside the Digital TV part of the device.
So, change the wording to reflect the hardware changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The references there are only for DVB. Add missing references for
ATSC and ISDB standards.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
On several places at the introduction, a digital TV board and its
kernel support is called as DVB. The reason is simple: by the
time the document was written, there were no other digital TV
standards :-)
Modernize the specs by referring to them as Digital TV.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Add Device Tree bindings for RAVE Supervisory Processor, an MCU
implementing varoius bits of housekeeping functionality (watchdoging,
backlight control, LED control, etc) on RAVE family of products by
Zodiac Inflight Innovations.
Acked-by: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add DT bindings for the ROHM BD9571MWV-M PMIC. This PMIC has
the following features:
- multiple voltage monitors for 1V8, 2V5, 3V3 voltage rail
- one voltage regulator for DVFS
- two GPIOs
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The X-Powers AXP813 is a PMIC designed to be paired with Allwinner's
A83T SoC. There is also an AXP818, which is paired with the H8 SoC.
The two models seem to be identical, apart from the external markings.
This patch introduces the basic mfd and regulator bindings for the
AXP813.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The binding already lists compatibles and regulators for the AXP806,
but it is missing from the list of supported chips at the beginning.
Add it.
Fixes: 204ae2963e ("mfd: axp20x: Add bindings for AXP806 PMIC")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
A new compatible string is introduced for SMC on sama5d2 to manage a
different layout of the registers.
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
│Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
DA9052 allows using the touchscreen input pins as general purpose
analogue input pin by wiring analogue inputs to X+, X-, Y+ and Y-
and providing a reference voltage at TSIREF pin.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add a binding for the RTC on the Realtek RTD119x/RTD129x SoC families.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Allwinner V3s has a DMA engine similar to the ones from A31, but with
fewer channels and DRQs.
Add support for it.
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Renesas R-Car V3M (R8A77970) SoC also has the R-Car gen2/3 compatible DMA
controllers, so document the SoC specific binding.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Pull x86 cache quality monitoring update from Thomas Gleixner:
"This update provides a complete rewrite of the Cache Quality
Monitoring (CQM) facility.
The existing CQM support was duct taped into perf with a lot of issues
and the attempts to fix those turned out to be incomplete and
horrible.
After lengthy discussions it was decided to integrate the CQM support
into the Resource Director Technology (RDT) facility, which is the
obvious choise as in hardware CQM is part of RDT. This allowed to add
Memory Bandwidth Monitoring support on top.
As a result the mechanisms for allocating cache/memory bandwidth and
the corresponding monitoring mechanisms are integrated into a single
management facility with a consistent user interface"
* 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
x86/intel_rdt: Turn off most RDT features on Skylake
x86/intel_rdt: Add command line options for resource director technology
x86/intel_rdt: Move special case code for Haswell to a quirk function
x86/intel_rdt: Remove redundant ternary operator on return
x86/intel_rdt/cqm: Improve limbo list processing
x86/intel_rdt/mbm: Fix MBM overflow handler during CPU hotplug
x86/intel_rdt: Modify the intel_pqr_state for better performance
x86/intel_rdt/cqm: Clear the default RMID during hotcpu
x86/intel_rdt: Show bitmask of shareable resource with other executing units
x86/intel_rdt/mbm: Handle counter overflow
x86/intel_rdt/mbm: Add mbm counter initialization
x86/intel_rdt/mbm: Basic counting of MBM events (total and local)
x86/intel_rdt/cqm: Add CPU hotplug support
x86/intel_rdt/cqm: Add sched_in support
x86/intel_rdt: Introduce rdt_enable_key for scheduling
x86/intel_rdt/cqm: Add mount,umount support
x86/intel_rdt/cqm: Add rmdir support
x86/intel_rdt: Separate the ctrl bits from rmdir
x86/intel_rdt/cqm: Add mon_data
x86/intel_rdt: Prepare for RDT monitor data support
...
Pull irq updates from Thomas Gleixner:
"The interrupt subsystem delivers this time:
- Refactoring of the GIC-V3 driver to prepare for the GIC-V4 support
- Initial GIC-V4 support
- Consolidation of the FSL MSI support
- Utilize the effective affinity interface in various ARM irqchip
drivers
- Yet another interrupt chip driver (UniPhier AIDET)
- Bulk conversion of the irq chip driver to use %pOF
- The usual small fixes and improvements all over the place"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits)
irqchip/ls-scfg-msi: Add MSI affinity support
irqchip/ls-scfg-msi: Add LS1043a v1.1 MSI support
irqchip/ls-scfg-msi: Add LS1046a MSI support
arm64: dts: ls1046a: Add MSI dts node
arm64: dts: ls1043a: Share all MSIs
arm: dts: ls1021a: Share all MSIs
arm64: dts: ls1043a: Fix typo of MSI compatible string
arm: dts: ls1021a: Fix typo of MSI compatible string
irqchip/ls-scfg-msi: Fix typo of MSI compatible strings
irqchip/irq-bcm7120-l2: Use correct I/O accessors for irq_fwd_mask
irqchip/mmp: Make mmp_intc_conf const
irqchip/gic: Make irq_chip const
irqchip/gic-v3: Advertise GICv4 support to KVM
irqchip/gic-v4: Enable low-level GICv4 operations
irqchip/gic-v4: Add some basic documentation
irqchip/gic-v4: Add VLPI configuration interface
irqchip/gic-v4: Add VPE command interface
irqchip/gic-v4: Add per-VM VPE domain creation
irqchip/gic-v3-its: Set implementation defined bit to enable VLPIs
irqchip/gic-v3-its: Allow doorbell interrupts to be injected/cleared
...
Pull timer fixes from Thomas Gleixner:
"A rather small update for the time(r) subsystem:
- A new clocksource driver IMX-TPM
- Minor fixes to the alarmtimer facility
- Device tree cleanups for Renesas drivers
- A new kselftest and fixes for the timer related tests
- Conversion of the clocksource drivers to use %pOF
- Use the proper helpers to access rlimits in the posix-cpu-timer
code"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
alarmtimer: Ensure RTC module is not unloaded
clocksource: Convert to using %pOF instead of full_name
clocksource/drivers/bcm2835: Remove message for a memory allocation failure
devicetree: bindings: Remove deprecated properties
devicetree: bindings: Remove unused 32-bit CMT bindings
devicetree: bindings: Deprecate property, update example
devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindings
devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindings
devicetree: bindings: Remove sh7372 CMT binding
clocksource/drivers/imx-tpm: Add imx tpm timer support
dt-bindings: timer: Add nxp tpm timer binding doc
posix-cpu-timers: Use dedicated helper to access rlimit values
alarmtimer: Fix unavailable wake-up source in sysfs
timekeeping: Use proper timekeeper for debug code
kselftests: timers: set-timer-lat: Add one-shot timer test cases
kselftests: timers: set-timer-lat: Tweak reporting when timer fires early
kselftests: timers: freq-step: Fix build warning
kselftests: timers: freq-step: Define ADJ_SETOFFSET if device has older kernel headers
Pull x86 mm changes from Ingo Molnar:
"PCID support, 5-level paging support, Secure Memory Encryption support
The main changes in this cycle are support for three new, complex
hardware features of x86 CPUs:
- Add 5-level paging support, which is a new hardware feature on
upcoming Intel CPUs allowing up to 128 PB of virtual address space
and 4 PB of physical RAM space - a 512-fold increase over the old
limits. (Supercomputers of the future forecasting hurricanes on an
ever warming planet can certainly make good use of more RAM.)
Many of the necessary changes went upstream in previous cycles,
v4.14 is the first kernel that can enable 5-level paging.
This feature is activated via CONFIG_X86_5LEVEL=y - disabled by
default.
(By Kirill A. Shutemov)
- Add 'encrypted memory' support, which is a new hardware feature on
upcoming AMD CPUs ('Secure Memory Encryption', SME) allowing system
RAM to be encrypted and decrypted (mostly) transparently by the
CPU, with a little help from the kernel to transition to/from
encrypted RAM. Such RAM should be more secure against various
attacks like RAM access via the memory bus and should make the
radio signature of memory bus traffic harder to intercept (and
decrypt) as well.
This feature is activated via CONFIG_AMD_MEM_ENCRYPT=y - disabled
by default.
(By Tom Lendacky)
- Enable PCID optimized TLB flushing on newer Intel CPUs: PCID is a
hardware feature that attaches an address space tag to TLB entries
and thus allows to skip TLB flushing in many cases, even if we
switch mm's.
(By Andy Lutomirski)
All three of these features were in the works for a long time, and
it's coincidence of the three independent development paths that they
are all enabled in v4.14 at once"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (65 commits)
x86/mm: Enable RCU based page table freeing (CONFIG_HAVE_RCU_TABLE_FREE=y)
x86/mm: Use pr_cont() in dump_pagetable()
x86/mm: Fix SME encryption stack ptr handling
kvm/x86: Avoid clearing the C-bit in rsvd_bits()
x86/CPU: Align CR3 defines
x86/mm, mm/hwpoison: Clear PRESENT bit for kernel 1:1 mappings of poison pages
acpi, x86/mm: Remove encryption mask from ACPI page protection type
x86/mm, kexec: Fix memory corruption with SME on successive kexecs
x86/mm/pkeys: Fix typo in Documentation/x86/protection-keys.txt
x86/mm/dump_pagetables: Speed up page tables dump for CONFIG_KASAN=y
x86/mm: Implement PCID based optimization: try to preserve old TLB entries using PCID
x86: Enable 5-level paging support via CONFIG_X86_5LEVEL=y
x86/mm: Allow userspace have mappings above 47-bit
x86/mm: Prepare to expose larger address space to userspace
x86/mpx: Do not allow MPX if we have mappings above 47-bit
x86/mm: Rename tasksize_32bit/64bit to task_size_32bit/64bit()
x86/xen: Redefine XEN_ELFNOTE_INIT_P2M using PUD_SIZE * PTRS_PER_PUD
x86/mm/dump_pagetables: Fix printout of p4d level
x86/mm/dump_pagetables: Generalize address normalization
x86/boot: Fix memremap() related build failure
...
Compared to the old xrx200_phy_fw driver the new version has multiple
enhancements. The name of the firmware files does not have to be added
to all .dts files anymore - one now configures the GPHY mode (FE or GE)
instead. Each GPHY can now also boot separate firmware (thus mixing of
GE and FE GPHYs is now possible).
The new implementation is based on the RCU syscon-mfd and uses the
reeset_controller framework instead of raw RCU register reads/writes.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: john@phrozen.org
Cc: p.zabel@pengutronix.de
Cc: kishon@ti.com
Cc: mark.rutland@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-mtd@lists.infradead.org
Cc: linux-watchdog@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-spi@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17128/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The reset controllers (on xRX200 and newer SoCs have two of them) are
provided by the RCU module. This was initially implemented as a simple
reset controller. However, the RCU module provides more functionality
(ethernet GPHYs, USB PHY, etc.), which makes it a MFD device.
The old reset controller driver implementation from
arch/mips/lantiq/xway/reset.c did not honor this fact.
For some devices the request and the status bits are different.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Cc: john@phrozen.org
Cc: kishon@ti.com
Cc: mark.rutland@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-mtd@lists.infradead.org
Cc: linux-watchdog@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-spi@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17125/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Provide a simple driver for PWM controllable vibrators.
It will be used by Motorola Droid 4.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull locking updates from Ingo Molnar:
- Add 'cross-release' support to lockdep, which allows APIs like
completions, where it's not the 'owner' who releases the lock, to be
tracked. It's all activated automatically under
CONFIG_PROVE_LOCKING=y.
- Clean up (restructure) the x86 atomics op implementation to be more
readable, in preparation of KASAN annotations. (Dmitry Vyukov)
- Fix static keys (Paolo Bonzini)
- Add killable versions of down_read() et al (Kirill Tkhai)
- Rework and fix jump_label locking (Marc Zyngier, Paolo Bonzini)
- Rework (and fix) tlb_flush_pending() barriers (Peter Zijlstra)
- Remove smp_mb__before_spinlock() and convert its usages, introduce
smp_mb__after_spinlock() (Peter Zijlstra)
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (56 commits)
locking/lockdep/selftests: Fix mixed read-write ABBA tests
sched/completion: Avoid unnecessary stack allocation for COMPLETION_INITIALIZER_ONSTACK()
acpi/nfit: Fix COMPLETION_INITIALIZER_ONSTACK() abuse
locking/pvqspinlock: Relax cmpxchg's to improve performance on some architectures
smp: Avoid using two cache lines for struct call_single_data
locking/lockdep: Untangle xhlock history save/restore from task independence
locking/refcounts, x86/asm: Disable CONFIG_ARCH_HAS_REFCOUNT for the time being
futex: Remove duplicated code and fix undefined behaviour
Documentation/locking/atomic: Finish the document...
locking/lockdep: Fix workqueue crossrelease annotation
workqueue/lockdep: 'Fix' flush_work() annotation
locking/lockdep/selftests: Add mixed read-write ABBA tests
mm, locking/barriers: Clarify tlb_flush_pending() barriers
locking/lockdep: Make CONFIG_LOCKDEP_CROSSRELEASE and CONFIG_LOCKDEP_COMPLETIONS truly non-interactive
locking/lockdep: Explicitly initialize wq_barrier::done::map
locking/lockdep: Rename CONFIG_LOCKDEP_COMPLETE to CONFIG_LOCKDEP_COMPLETIONS
locking/lockdep: Reword title of LOCKDEP_CROSSRELEASE config
locking/lockdep: Make CONFIG_LOCKDEP_CROSSRELEASE part of CONFIG_PROVE_LOCKING
locking/refcounts, x86/asm: Implement fast refcount overflow protection
locking/lockdep: Fix the rollback and overwrite detection logic in crossrelease
...
Pull x86 microcode loading updates from Ingo Molnar:
"Update documentation, improve robustness and fix a memory leak"
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/intel: Improve microcode patches saving flow
x86/microcode: Document the three loading methods
x86/microcode/AMD: Free unneeded patch before exit from update_cache()
Pull x86 asm updates from Ingo Molnar:
- Introduce the ORC unwinder, which can be enabled via
CONFIG_ORC_UNWINDER=y.
The ORC unwinder is a lightweight, Linux kernel specific debuginfo
implementation, which aims to be DWARF done right for unwinding.
Objtool is used to generate the ORC unwinder tables during build, so
the data format is flexible and kernel internal: there's no
dependency on debuginfo created by an external toolchain.
The ORC unwinder is almost two orders of magnitude faster than the
(out of tree) DWARF unwinder - which is important for perf call graph
profiling. It is also significantly simpler and is coded defensively:
there has not been a single ORC related kernel crash so far, even
with early versions. (knock on wood!)
But the main advantage is that enabling the ORC unwinder allows
CONFIG_FRAME_POINTERS to be turned off - which speeds up the kernel
measurably:
With frame pointers disabled, GCC does not have to add frame pointer
instrumentation code to every function in the kernel. The kernel's
.text size decreases by about 3.2%, resulting in better cache
utilization and fewer instructions executed, resulting in a broad
kernel-wide speedup. Average speedup of system calls should be
roughly in the 1-3% range - measurements by Mel Gorman [1] have shown
a speedup of 5-10% for some function execution intense workloads.
The main cost of the unwinder is that the unwinder data has to be
stored in RAM: the memory cost is 2-4MB of RAM, depending on kernel
config - which is a modest cost on modern x86 systems.
Given how young the ORC unwinder code is it's not enabled by default
- but given the performance advantages the plan is to eventually make
it the default unwinder on x86.
See Documentation/x86/orc-unwinder.txt for more details.
- Remove lguest support: its intended role was that of a temporary
proof of concept for virtualization, plus its removal will enable the
reduction (removal) of the paravirt API as well, so Rusty agreed to
its removal. (Juergen Gross)
- Clean up and fix FSGS related functionality (Andy Lutomirski)
- Clean up IO access APIs (Andy Shevchenko)
- Enhance the symbol namespace (Jiri Slaby)
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (47 commits)
objtool: Handle GCC stack pointer adjustment bug
x86/entry/64: Use ENTRY() instead of ALIGN+GLOBAL for stub32_clone()
x86/fpu/math-emu: Add ENDPROC to functions
x86/boot/64: Extract efi_pe_entry() from startup_64()
x86/boot/32: Extract efi_pe_entry() from startup_32()
x86/lguest: Remove lguest support
x86/paravirt/xen: Remove xen_patch()
objtool: Fix objtool fallthrough detection with function padding
x86/xen/64: Fix the reported SS and CS in SYSCALL
objtool: Track DRAP separately from callee-saved registers
objtool: Fix validate_branch() return codes
x86: Clarify/fix no-op barriers for text_poke_bp()
x86/switch_to/64: Rewrite FS/GS switching yet again to fix AMD CPUs
selftests/x86/fsgsbase: Test selectors 1, 2, and 3
x86/fsgsbase/64: Report FSBASE and GSBASE correctly in core dumps
x86/fsgsbase/64: Fully initialize FS and GS state in start_thread_common
x86/asm: Fix UNWIND_HINT_REGS macro for older binutils
x86/asm/32: Fix regs_get_register() on segment registers
x86/xen/64: Rearrange the SYSCALL entries
x86/asm/32: Remove a bunch of '& 0xffff' from pt_regs segment reads
...
Pull perf updates from Ingo Molnar:
"Kernel side changes:
- Add branch type profiling/tracing support. (Jin Yao)
- Add the PERF_SAMPLE_PHYS_ADDR ABI to allow the tracing/profiling of
physical memory addresses, where the PMU supports it. (Kan Liang)
- Export some PMU capability details in the new
/sys/bus/event_source/devices/cpu/caps/ sysfs directory. (Andi
Kleen)
- Aux data fixes and updates (Will Deacon)
- kprobes fixes and updates (Masami Hiramatsu)
- AMD uncore PMU driver fixes and updates (Janakarajan Natarajan)
On the tooling side, here's a (limited!) list of highlights - there
were many other changes that I could not list, see the shortlog and
git history for details:
UI improvements:
- Implement a visual marker for fused x86 instructions in the
annotate TUI browser, available now in 'perf report', more work
needed to have it available as well in 'perf top' (Jin Yao)
Further explanation from one of Jin's patches:
│ ┌──cmpl $0x0,argp_program_version_hook
81.93 │ ├──je 20
│ │ lock cmpxchg %esi,0x38a9a4(%rip)
│ │↓ jne 29
│ │↓ jmp 43
11.47 │20:└─→cmpxch %esi,0x38a999(%rip)
That means the cmpl+je is a fused instruction pair and they should
be considered together.
- Record the branch type and then show statistics and info about in
callchain entries (Jin Yao)
Example from one of Jin's patches:
# perf record -g -j any,save_type
# perf report --branch-history --stdio --no-children
38.50% div.c:45 [.] main div
|
---main div.c:42 (RET CROSS_2M cycles:2)
compute_flag div.c:28 (cycles:2)
compute_flag div.c:27 (RET CROSS_2M cycles:1)
rand rand.c:28 (cycles:1)
rand rand.c:28 (RET CROSS_2M cycles:1)
__random random.c:298 (cycles:1)
__random random.c:297 (COND_BWD CROSS_2M cycles:1)
__random random.c:295 (cycles:1)
__random random.c:295 (COND_BWD CROSS_2M cycles:1)
__random random.c:295 (cycles:1)
__random random.c:295 (RET CROSS_2M cycles:9)
namespaces support:
- Add initial support for namespaces, using setns to access files in
namespaces, grabbing their build-ids, etc. (Krister Johansen)
perf trace enhancements:
- Beautify pkey_{alloc,free,mprotect} arguments in 'perf trace'
(Arnaldo Carvalho de Melo)
- Add initial 'clone' syscall args beautifier in 'perf trace'
(Arnaldo Carvalho de Melo)
- Ignore 'fd' and 'offset' args for MAP_ANONYMOUS in 'perf trace'
(Arnaldo Carvalho de Melo)
- Beautifiers for the 'cmd' arg of several ioctl types, including:
sound, DRM, KVM, vhost virtio and perf_events. (Arnaldo Carvalho de
Melo)
- Add PERF_SAMPLE_CALLCHAIN and PERF_RECORD_MMAP[2] to 'perf data'
CTF conversion, allowing CTF trace visualization tools to show
callchains and to resolve symbols (Geneviève Bastien)
- Beautify the fcntl syscall, which is an interesting one in the
sense that infrastructure had to be put in place to change the
formatters of some arguments according to the value in a previous
one, i.e. cmd dictates how arg and the syscall return will be
formatted. (Arnaldo Carvalho de Melo
perf stat enhancements:
- Use group read for event groups in 'perf stat', reducing overhead
when groups are defined in the event specification, i.e. when using
{} to enclose a list of events, asking them to be read at the same
time, e.g.: "perf stat -e '{cycles,instructions}'" (Jiri Olsa)
pipe mode improvements:
- Process tracing data in 'perf annotate' pipe mode (David
Carrillo-Cisneros)
- Add header record types to pipe-mode, now this command:
$ perf record -o - -e cycles sleep 1 | perf report --stdio --header
Will show the same as in non-pipe mode, i.e. involving a perf.data
file (David Carrillo-Cisneros)
Vendor specific hardware event support updates/enhancements:
- Update POWER9 vendor events tables (Sukadev Bhattiprolu)
- Add POWER9 PMU events Sukadev (Bhattiprolu)
- Support additional POWER8+ PVR in PMU mapfile (Shriya)
- Add Skylake server uncore JSON vendor events (Andi Kleen)
- Support exporting Intel PT data to sqlite3 with python perf
scripts, this is in addition to the postgresql support that was
already there (Adrian Hunter)"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (253 commits)
perf symbols: Fix plt entry calculation for ARM and AARCH64
perf probe: Fix kprobe blacklist checking condition
perf/x86: Fix caps/ for !Intel
perf/core, x86: Add PERF_SAMPLE_PHYS_ADDR
perf/core, pt, bts: Get rid of itrace_started
perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments
tools headers: Sync cpu features kernel ABI headers with tooling headers
perf tools: Pass full path of FEATURES_DUMP
perf tools: Robustify detection of clang binary
tools lib: Allow external definition of CC, AR and LD
perf tools: Allow external definition of flex and bison binary names
tools build tests: Don't hardcode gcc name
perf report: Group stat values on global event id
perf values: Zero value buffers
perf values: Fix allocation check
perf values: Fix thread index bug
perf report: Add dump_read function
perf record: Set read_format for inherit_stat
perf c2c: Fix remote HITM detection for Skylake
perf tools: Fix static build with newer toolchains
...
Pull RCU updates from Ingo Molnad:
"The main RCU related changes in this cycle were:
- Removal of spin_unlock_wait()
- SRCU updates
- RCU torture-test updates
- RCU Documentation updates
- Extend the sys_membarrier() ABI with the MEMBARRIER_CMD_PRIVATE_EXPEDITED variant
- Miscellaneous RCU fixes
- CPU-hotplug fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (63 commits)
arch: Remove spin_unlock_wait() arch-specific definitions
locking: Remove spin_unlock_wait() generic definitions
drivers/ata: Replace spin_unlock_wait() with lock/unlock pair
ipc: Replace spin_unlock_wait() with lock/unlock pair
exit: Replace spin_unlock_wait() with lock/unlock pair
completion: Replace spin_unlock_wait() with lock/unlock pair
doc: Set down RCU's scheduling-clock-interrupt needs
doc: No longer allowed to use rcu_dereference on non-pointers
doc: Add RCU files to docbook-generation files
doc: Update memory-barriers.txt for read-to-write dependencies
doc: Update RCU documentation
membarrier: Provide expedited private command
rcu: Remove exports from rcu_idle_exit() and rcu_idle_enter()
rcu: Add warning to rcu_idle_enter() for irqs enabled
rcu: Make rcu_idle_enter() rely on callers disabling irqs
rcu: Add assertions verifying blocked-tasks list
rcu/tracing: Set disable_rcu_irq_enter on rcu_eqs_exit()
rcu: Add TPS() protection for _rcu_barrier_trace strings
rcu: Use idle versions of swait to make idle-hack clear
swait: Add idle variants which don't contribute to load average
...
This removes the restriction on the value range of the fbcon=margin:
parameter. The color value really depends on the driver being used.
Signed-off-by: David Lechner <david@lechnology.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
[b.zolnierkie: ported over fbcon changes]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Add support for STM32 Low-Power Timer, that can be used as counter
or quadrature encoder.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add documentation for STMicroelectronics STM32 Low-Power Timer
quadrature encoder and counter binding.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add documentation for STMicroelectronics STM32 Low-Power Timer Trigger
binding.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add documentation for STMicroelectronics STM32 Low-Power Timer binding.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Pull documentation updates from Jonathan Corbet:
"After a fair amount of churn in the last couple of cycles, docs are
taking it easier this time around. Lots of fixes and some new
documentation, but nothing all that radical. Perhaps the most
interesting change for many is the scripts/sphinx-pre-install tool
from Mauro; it will tell you exactly which packages you need to
install to get a working docs toolchain on your system.
There are two little patches reaching outside of Documentation/; both
just tweak kerneldoc comments to eliminate warnings and fix some
dangling doc pointers"
* 'docs-next' of git://git.lwn.net/linux: (52 commits)
Documentation/sphinx: fix kernel-doc decode for non-utf-8 locale
genalloc: Fix an incorrect kerneldoc comment
doc: Add documentation for the genalloc subsystem
assoc_array: fix path to assoc_array documentation
kernel-doc parser mishandles declarations split into lines
docs: ReSTify table of contents in core.rst
docs: process: drop git snapshots from applying-patches.rst
Documentation:input: fix typo
swap: Remove obsolete sentence
sphinx.rst: Allow Sphinx version 1.6 at the docs
docs-rst: fix verbatim font size on tables
Documentation: stable-kernel-rules: fix broken git urls
rtmutex: update rt-mutex
rtmutex: update rt-mutex-design
docs: fix minimal sphinx version in conf.py
docs: fix nested numbering in the TOC
NVMEM documentation fix: A minor typo
docs-rst: pdf: use same vertical margin on all Sphinx versions
doc: Makefile: if sphinx is not found, run a check script
docs: Fix paths in security/keys
...
- New driver for Lantiq CPU temperature sensor
- New driver for IBM CFF power supply
- New PMBus driver for TPS53679
- Add support for LM5066I lm25066 PMBus driver
- Add support for Intel VID protocol VR13 to PMBus drivers
- Add support for CAT34TS02C, GT30TS00, GT34TS02, and CAT34TS04 to jc42 driver
- Cleanup and minor improvements in several drivers
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Merge tag 'hwmon-for-linus-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
- new drivers:
- Lantiq CPU temperature sensor
- IBM CFF power supply
- TPS53679 PMBus driver
- new support:
- LM5066I (lm25066 PMBus driver)
- Intel VID protocol VR13 (PMBus drivers)
- CAT34TS02C, GT30TS00, GT34TS02, and CAT34TS04 (jc42 driver)
- cleanup and minor improvements in several drivers
* tag 'hwmon-for-linus-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (36 commits)
hwmon: (ltq-cputemp) add cpu temp sensor driver
hwmon: (ltq-cputemp) add devicetree bindings documentation
hwmon: (pmbus) Add support for Texas Instruments tps53679 device
hwmon: (asc7621) make several arrays static const
hwmon: (pmbus/lm25066) Add support for TI LM5066I
hwmon: (pmbus/lm25066) Offset coefficient depends on CL
hwmon: (pmbus) Add support for Intel VID protocol VR13
Documentation: hwmon: Document the IBM CFF power supply
hwmon: (pmbus) Add IBM Common Form Factor (CFF) power supply driver
dt-bindings: hwmon: Document the IBM CCF power supply version 1
hwmon: (ftsteutates) constify i2c_device_id
hwmon: da9052: Add support for TSI channel
mfd: da9052: Make touchscreen registration optional
hwmon: da9052: Replace S_IRUGO with 0444
mfd: da9052: Add register details for TSI
hwmon: (aspeed-pwm) add THERMAL dependency
hwmon: (pmbus) Add debugfs for status registers
hwmon: (aspeed-pwm-tacho) cooling device support.
Documentation: dt-bindings: aspeed-pwm-tacho cooling device.
hwmon: (pmbus): Add generic alarm bit for iin and pin
...
- Lots of hfi1 driver updates (mixed with a few qib and core updates as
well)
- rxe updates
- various mlx updates
- Set default roce type to RoCEv2
- Several larger fixes for bnxt_re that were too big for -rc
- Several larger fixes for qedr that, likewise, were too big for -rc
- Misc core changes
- Make the hns_roce driver compilable on arches other than aarch64 so we
can more easily debug build issues related to it
- Add rdma-netlink infrastructure updates
- Add automatic IRQ affinity infrastructure
- Add 32bit lid support
- Lots of misc fixes across the subsystem from random people
- Autoloading of RDMA netlink modules
- PCI pool cleanups from Romain Perier
- mlx5 driver feature additions and fixes
- Hardware tag matchine feature
- Fix sleeping in atomic when resolving roce ah
- Add experimental ioctl interface as posted to linux-api@
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Merge tag 'for-linus-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford:
"This is a big pull request.
Of note is that I'm sending you the new ioctl API for the rdma
subsystem. We put it up on linux-api@, but didn't get much response.
The API is complex, but it solves two different problems in one go:
1) The bi-directional nature of the RDMA file write calls, which
created the security hole we had to handle (and for which the fix
is now causing problems for systems in production, we were a bit
over zealous in the fix and the ability to open a device, then
fork, then create new queue pairs on the device and use them is
broken).
2) The bloat caused by different vendors implementing extensions to
the base verbs API. Each vendor's hardware is slightly different,
and the hardware might be suitable for one extension but not
another.
By the time we add generic extensions for all the different ways
that the different hardware can offload things, the API becomes
bloated. Things like our completion structs have started to exceed
a cache line in size because of all the elements needed to support
this. That in turn shows up heavily in the performance graphs with
a noticable drop in performance on 100Gigabit links as our
completion structs go from occupying one cache line to 1+.
This API makes things like the completion structs modular in a
very similar way to netlink so that your structs can only include
the items needed for the offloads/features you are actually using
on a given queue pair. In that way we support everything, but only
use what we need, and our structs stay smaller.
The ioctl API is better explained by the posting on linux-api@ than I
can explain it here, so I'll just leave it at that.
The rest of the pull request is typical stuff.
Updates for 4.14 kernel merge window
- Lots of hfi1 driver updates (mixed with a few qib and core updates
as well)
- rxe updates
- various mlx updates
- Set default roce type to RoCEv2
- Several larger fixes for bnxt_re that were too big for -rc
- Several larger fixes for qedr that, likewise, were too big for -rc
- Misc core changes
- Make the hns_roce driver compilable on arches other than aarch64 so
we can more easily debug build issues related to it
- Add rdma-netlink infrastructure updates
- Add automatic IRQ affinity infrastructure
- Add 32bit lid support
- Lots of misc fixes across the subsystem from random people
- Autoloading of RDMA netlink modules
- PCI pool cleanups from Romain Perier
- mlx5 driver feature additions and fixes
- Hardware tag matchine feature
- Fix sleeping in atomic when resolving roce ah
- Add experimental ioctl interface as posted to linux-api@"
* tag 'for-linus-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (328 commits)
IB/core: Expose ioctl interface through experimental Kconfig
IB/core: Assign root to all drivers
IB/core: Add completion queue (cq) object actions
IB/core: Add legacy driver's user-data
IB/core: Export ioctl enum types to user-space
IB/core: Explicitly destroy an object while keeping uobject
IB/core: Add macros for declaring methods and attributes
IB/core: Add uverbs merge trees functionality
IB/core: Add DEVICE object and root tree structure
IB/core: Declare an object instead of declaring only type attributes
IB/core: Add new ioctl interface
RDMA/vmw_pvrdma: Fix a signedness
RDMA/vmw_pvrdma: Report network header type in WC
IB/core: Add might_sleep() annotation to ib_init_ah_from_wc()
IB/cm: Fix sleeping in atomic when RoCE is used
IB/core: Add support to finalize objects in one transaction
IB/core: Add a generic way to execute an operation on a uobject
Documentation: Hardware tag matching
IB/mlx5: Support IB_SRQT_TM
net/mlx5: Add XRQ support
...
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for your net-next
tree. Basically, updates to the conntrack core, enhancements for
nf_tables, conversion of netfilter hooks from linked list to array to
improve memory locality and asorted improvements for the Netfilter
codebase. More specifically, they are:
1) Add expection to hashes after timer initialization to prevent
access from another CPU that walks on the hashes and calls
del_timer(), from Florian Westphal.
2) Don't update nf_tables chain counters from hot path, this is only
used by the x_tables compatibility layer.
3) Get rid of nested rcu_read_lock() calls from netfilter hook path.
Hooks are always guaranteed to run from rcu read side, so remove
nested rcu_read_lock() where possible. Patch from Taehee Yoo.
4) nf_tables new ruleset generation notifications include PID and name
of the process that has updated the ruleset, from Phil Sutter.
5) Use skb_header_pointer() from nft_fib, so we can reuse this code from
the nf_family netdev family. Patch from Pablo M. Bermudo.
6) Add support for nft_fib in nf_tables netdev family, also from Pablo.
7) Use deferrable workqueue for conntrack garbage collection, to reduce
power consumption, from Patch from Subash Abhinov Kasiviswanathan.
8) Add nf_ct_expect_iterate_net() helper and use it. From Florian
Westphal.
9) Call nf_ct_unconfirmed_destroy only from cttimeout, from Florian.
10) Drop references on conntrack removal path when skbuffs has escaped via
nfqueue, from Florian.
11) Don't queue packets to nfqueue with dying conntrack, from Florian.
12) Constify nf_hook_ops structure, from Florian.
13) Remove neededlessly branch in nf_tables trace code, from Phil Sutter.
14) Add nla_strdup(), from Phil Sutter.
15) Rise nf_tables objects name size up to 255 chars, people want to use
DNS names, so increase this according to what RFC 1035 specifies.
Patch series from Phil Sutter.
16) Kill nf_conntrack_default_on, it's broken. Default on conntrack hook
registration on demand, suggested by Eric Dumazet, patch from Florian.
17) Remove unused variables in compat_copy_entry_from_user both in
ip_tables and arp_tables code. Patch from Taehee Yoo.
18) Constify struct nf_conntrack_l4proto, from Julia Lawall.
19) Constify nf_loginfo structure, also from Julia.
20) Use a single rb root in connlimit, from Taehee Yoo.
21) Remove unused netfilter_queue_init() prototype, from Taehee Yoo.
22) Use audit_log() instead of open-coding it, from Geliang Tang.
23) Allow to mangle tcp options via nft_exthdr, from Florian.
24) Allow to fetch TCP MSS from nft_rt, from Florian. This includes
a fix for a miscalculation of the minimal length.
25) Simplify branch logic in h323 helper, from Nick Desaulniers.
26) Calculate netlink attribute size for conntrack tuple at compile
time, from Florian.
27) Remove protocol name field from nf_conntrack_{l3,l4}proto structure.
From Florian.
28) Remove holes in nf_conntrack_l4proto structure, so it becomes
smaller. From Florian.
29) Get rid of print_tuple() indirection for /proc conntrack listing.
Place all the code in net/netfilter/nf_conntrack_standalone.c.
Patch from Florian.
30) Do not built in print_conntrack() if CONFIG_NF_CONNTRACK_PROCFS is
off. From Florian.
31) Constify most nf_conntrack_{l3,l4}proto helper functions, from
Florian.
32) Fix broken indentation in ebtables extensions, from Colin Ian King.
33) Fix several harmless sparse warning, from Florian.
34) Convert netfilter hook infrastructure to use array for better memory
locality, joint work done by Florian and Aaron Conole. Moreover, add
some instrumentation to debug this.
35) Batch nf_unregister_net_hooks() calls, to call synchronize_net once
per batch, from Florian.
36) Get rid of noisy logging in ICMPv6 conntrack helper, from Florian.
37) Get rid of obsolete NFDEBUG() instrumentation, from Varsha Rao.
38) Remove unused code in the generic protocol tracker, from Davide
Caratti.
I think I will have material for a second Netfilter batch in my queue if
time allow to make it fit in this merge window.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'drm-for-v4.14' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"This is the main drm pull request for 4.14 merge window.
I'm sending this early, as my continuing journey into fatherhood is
occurring really soon now, I'm going to be mostly useless for the next
couple of weeks, though I may be able to read email, I doubt I'll be
doing much patch applications or git sending. If anything urgent pops
up I've asked Daniel/Jani/Alex/Sean to try and direct stuff towards
you.
Outside drm changes:
Some rcar-du updates that touch the V4L tree, all acks should be in
place. It adds one export to the radix tree code for new i915 use
case. There are some minor AGP cleanups (don't see that too often).
Changes to the vbox driver in staging to avoid breaking compilation.
Summary:
core:
- Atomic helper fixes
- Atomic UAPI fixes
- Add YCBCR 4:2:0 support
- Drop set_busid hook
- Refactor fb_helper locking
- Remove a bunch of internal APIs
- Add a bunch of better default handlers
- Format modifier/blob plane property added
- More internal header refactoring
- Make more internal API names consistent
- Enhanced syncobj APIs (wait/signal/reset/create signalled)
bridge:
- Add Synopsys Designware MIPI DSI host bridge driver
tiny:
- Add Pervasive Displays RePaper displays
- Add support for LEGO MINDSTORMS EV3 LCD
i915:
- Lots of GEN10/CNL support patches
- drm syncobj support
- Skylake+ watermark refactoring
- GVT vGPU 48-bit ppgtt support
- GVT performance improvements
- NOA change ioctl
- CCS (color compression) scanout support
- GPU reset improvements
amdgpu:
- Initial hugepage support
- BO migration logic rework
- Vega10 improvements
- Powerplay fixes
- Stop reprogramming the MC
- Fixes for ACP audio on stoney
- SR-IOV fixes/improvements
- Command submission overhead improvements
amdkfd:
- Non-dGPU upstreaming patches
- Scratch VA ioctl
- Image tiling modes
- Update PM4 headers for new firmware
- Drop all BUG_ONs.
nouveau:
- GP108 modesetting support.
- Disable MSI on big endian.
vmwgfx:
- Add fence fd support.
msm:
- Runtime PM improvements
exynos:
- NV12MT support
- Refactor KMS drivers
imx-drm:
- Lock scanout channel to improve memory bw
- Cleanups
etnaviv:
- GEM object population fixes
tegra:
- Prep work for Tegra186 support
- PRIME mmap support
sunxi:
- HDMI support improvements
- HDMI CEC support
omapdrm:
- HDMI hotplug IRQ support
- Big driver cleanup
- OMAP5 DSI support
rcar-du:
- vblank fixes
- VSP1 updates
arcgpu:
- Minor fixes
stm:
- Add STM32 DSI controller driver
dw_hdmi:
- Add support for Rockchip RK3399
- HDMI CEC support
atmel-hlcdc:
- Add 8-bit color support
vc4:
- Atomic fixes
- New ioctl to attach a label to a buffer object
- HDMI CEC support
- Allow userspace to dictate rendering order on submit ioctl"
* tag 'drm-for-v4.14' of git://people.freedesktop.org/~airlied/linux: (1074 commits)
drm/syncobj: Add a signal ioctl (v3)
drm/syncobj: Add a reset ioctl (v3)
drm/syncobj: Add a syncobj_array_find helper
drm/syncobj: Allow wait for submit and signal behavior (v5)
drm/syncobj: Add a CREATE_SIGNALED flag
drm/syncobj: Add a callback mechanism for replace_fence (v3)
drm/syncobj: add sync obj wait interface. (v8)
i915: Use drm_syncobj_fence_get
drm/syncobj: Add a race-free drm_syncobj_fence_get helper (v2)
drm/syncobj: Rename fence_get to find_fence
drm: kirin: Add mode_valid logic to avoid mode clocks we can't generate
drm/vmwgfx: Bump the version for fence FD support
drm/vmwgfx: Add export fence to file descriptor support
drm/vmwgfx: Add support for imported Fence File Descriptor
drm/vmwgfx: Prepare to support fence fd
drm/vmwgfx: Fix incorrect command header offset at restart
drm/vmwgfx: Support the NOP_ERROR command
drm/vmwgfx: Restart command buffers after errors
drm/vmwgfx: Move irq bottom half processing to threads
drm/vmwgfx: Don't use drm_irq_[un]install
...
* pm-sleep:
ACPI / PM: Check low power idle constraints for debug only
PM / s2idle: Rename platform operations structure
PM / s2idle: Rename ->enter_freeze to ->enter_s2idle
PM / s2idle: Rename freeze_state enum and related items
PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_TO_IDLE
ACPI / PM: Prefer suspend-to-idle over S3 on some systems
platform/x86: intel-hid: Wake up Dell Latitude 7275 from suspend-to-idle
PM / suspend: Define pr_fmt() in suspend.c
PM / suspend: Use mem_sleep_labels[] strings in messages
PM / sleep: Put pm_test under CONFIG_PM_SLEEP_DEBUG
PM / sleep: Check pm_wakeup_pending() in __device_suspend_noirq()
PM / core: Add error argument to dpm_show_time()
PM / core: Split dpm_suspend_noirq() and dpm_resume_noirq()
PM / s2idle: Rearrange the main suspend-to-idle loop
PM / timekeeping: Print debug messages when requested
PM / sleep: Mark suspend/hibernation start and finish
PM / sleep: Do not print debug messages by default
PM / suspend: Export pm_suspend_target_state
* intel_pstate:
cpufreq: intel_pstate: Shorten a couple of long names
cpufreq: intel_pstate: Simplify intel_pstate_adjust_pstate()
cpufreq: intel_pstate: Improve IO performance with per-core P-states
cpufreq: intel_pstate: Drop INTEL_PSTATE_HWP_SAMPLING_INTERVAL
cpufreq: intel_pstate: Drop ->update_util from pstate_funcs
cpufreq: intel_pstate: Do not use PID-based P-state selection
* pm-cpufreq: (33 commits)
cpufreq: imx6q: Fix imx6sx low frequency support
cpufreq: speedstep-lib: make several arrays static, makes code smaller
cpufreq: ti: Fix 'of_node_put' being called twice in error handling path
cpufreq: dt-platdev: Drop few entries from whitelist
cpufreq: dt-platdev: Automatically create cpufreq device with OPP v2
ARM: ux500: don't select CPUFREQ_DT
cpufreq: Convert to using %pOF instead of full_name
cpufreq: Cap the default transition delay value to 10 ms
cpufreq: dbx500: Delete obsolete driver
mfd: db8500-prcmu: Get rid of cpufreq dependency
cpufreq: enable the DT cpufreq driver on the Ux500
cpufreq: Loongson2: constify platform_device_id
cpufreq: dt: Add r8a7796 support to to use generic cpufreq driver
cpufreq: remove setting of policy->cpu in policy->cpus during init
cpufreq: mediatek: add support of cpufreq to MT7622 SoC
cpufreq: mediatek: add cleanups with the more generic naming
cpufreq: rcar: Add support for R8A7795 SoC
cpufreq: dt: Add rk3328 compatible to use generic cpufreq driver
cpufreq: s5pv210: add missing of_node_put()
cpufreq: Allow dynamic switching with CPUFREQ_ETERNAL latency
...
* pm-core:
PM / wakeup: Set power.can_wakeup if wakeup_sysfs_add() fails
* pm-opp:
PM / OPP: Fix get sharing CPUs when hotplug is used
PM / OPP: OF: Use pr_debug() instead of pr_err() while adding OPP table
* pm-domains:
PM / Domains: Convert to using %pOF instead of full_name
PM / Domains: Extend generic power domain debugfs
PM / Domains: Add time accounting to various genpd states
* pm-cpu:
PM / CPU: replace raw_notifier with atomic_notifier
* pm-avs:
PM / AVS: rockchip-io: add io selectors and supplies for RV1108
A couple of late-arriving fixes before final 4.13:
- A few reverts of DT bindings on Allwinner for their ethernet
driver. Discussion didn't converge, and since bindings are considered
ABI it makes sense to revert instead of having to support two bindings
long-term.
- A fix to enumerate GPIOs properly on Marvell Armada AP806
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A couple of late-arriving fixes before final 4.13:
- A few reverts of DT bindings on Allwinner for their ethernet
driver. Discussion didn't converge, and since bindings are
considered ABI it makes sense to revert instead of having to
support two bindings long-term.
- A fix to enumerate GPIOs properly on Marvell Armada AP806"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: dts: marvell: fix number of GPIOs in Armada AP806 description
arm: dts: sunxi: Revert EMAC changes
arm64: dts: allwinner: Revert EMAC changes
dt-bindings: net: Revert sun8i dwmac binding
This is a revert of the EMAC bindings. The discussion has not settled down
yet on a proper representation of the PHY, and therefore we cannot commit
to a binding yet
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Merge tag 'sunxi-fixes-for-4.13-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt64
Allwinner fixes for 4.13, take 3
This is a revert of the EMAC bindings. The discussion has not settled down
yet on a proper representation of the PHY, and therefore we cannot commit
to a binding yet
* tag 'sunxi-fixes-for-4.13-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm: dts: sunxi: Revert EMAC changes
arm64: dts: allwinner: Revert EMAC changes
dt-bindings: net: Revert sun8i dwmac binding
arm64: allwinner: h5: fix pinctrl IRQs
arm64: allwinner: a64: sopine: add missing ethernet0 alias
arm64: allwinner: a64: pine64: add missing ethernet0 alias
arm64: allwinner: a64: bananapi-m64: add missing ethernet0 alias
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
This is a revert of the EMAC bindings. The discussion has not settled down
yet on a proper representation of the PHY, and therefore we cannot commit
to a binding yet
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Merge tag 'sunxi-fixes-for-4.13-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt
Allwinner fixes for 4.13, take 3
This is a revert of the EMAC bindings. The discussion has not settled down
yet on a proper representation of the PHY, and therefore we cannot commit
to a binding yet
* tag 'sunxi-fixes-for-4.13-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm: dts: sunxi: Revert EMAC changes
arm64: dts: allwinner: Revert EMAC changes
dt-bindings: net: Revert sun8i dwmac binding
arm64: allwinner: h5: fix pinctrl IRQs
arm64: allwinner: a64: sopine: add missing ethernet0 alias
arm64: allwinner: a64: pine64: add missing ethernet0 alias
arm64: allwinner: a64: bananapi-m64: add missing ethernet0 alias
Signed-off-by: Olof Johansson <olof@lixom.net>
Since gclk (generated-clk) is now able to determine the rate of the
audio_pll, there is no need for classd to have a direct phandle to the
audio_pll while already having a phandle to gclk.
This binding is used by no board in mainline so it is safe to be
modified.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This new clock driver set allows to have a fractional divided clock that
would generate a precise clock particularly suitable for audio
applications.
The main audio pll clock has two children clocks: one that is connected
to the PMC, the other that can directly drive a pad. As these two routes
have different enable bits and different dividers and divider formulas,
they are handled by two different drivers.
This adds the audio plls (frac, pad and pmc) to the compatible list of
at91 clocks in DT binding.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
In addition to using GLINK for communication with the RPM it can be
used ontop of SMEM for communicating with remoteprocs, extend the
binding to also describe this case and reference the GLINK binding from
the affected remoteproc bindings.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This initial port adds support of ARC HS Development Kit board with some
basic features such serial port, USB, SD/MMC and Ethernet.
Essentially we run Linux kernel on all 4 cores (i.e. utilize SMP) and
heavily use IO Coherency for speeding-up DMA-aware peripherals.
Note as opposed to other ARC boards we link Linux kernel to
0x9000_0000 intentionally because cores 1 and 3 configured with DCCM
situated at our more usual link base 0x8000_0000. We still can use
memory region starting at 0x8000_0000 as we reallocate DCCM in our
platform code.
Note that PAE remapping for DMA clients does not work due to an RTL bug,
so CREG_PAE register must be programmed to all zeroes, otherwise it will
cause problems with DMA to/from peripherals even if PAE40 is not used.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Documentation for this feature was missing from the patchset.
Copied a lot from the netdev 2.1 paper, addressing some small
interface changes since then.
Changes
v1 -> v2
- change email discussion URL format
- clarify that u32 counter is per-syscall, unsigned and
wraps after UINT_MAX calls
- describe errno on send failure specific to MSG_ZEROCOPY
- a few very minor rewordings
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the preferred generic node name in the example.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rob Herring <robh@kernel.org>
A link interrupt can be described. Document this valid interrupt name.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Tested-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
* Fix memory leaks in the core
* Remove unused NAND locking support
* Rename nand.h into rawnand.h (preparing support for spi NANDs)
* Use NAND_MAX_ID_LEN where appropriate
* Fix support for 20nm Hynix chips
* Fix support for Samsung and Hynix SLC NANDs
and the following driver changes:
* Various cleanup, improvements and fixes in the qcom driver
* Fixes for bugs detected by various static code analysis tools
* Fix mxc ooblayout definition
* Add a new part_parsers to tmio and sharpsl platform data in order to
define a custom list of partition parsers
* Request the reset line in exclusive mode in the sunxi driver
* Fix a build error in the orion-nand driver when compiled for ARMv4
* Allow 64-bit mvebu platforms to select the PXA3XX driver
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Merge tag 'nand/for-4.14' of git://git.infradead.org/l2-mtd into mtd/next
From Boris:
"
This pull request contains the following core changes:
* Fix memory leaks in the core
* Remove unused NAND locking support
* Rename nand.h into rawnand.h (preparing support for spi NANDs)
* Use NAND_MAX_ID_LEN where appropriate
* Fix support for 20nm Hynix chips
* Fix support for Samsung and Hynix SLC NANDs
and the following driver changes:
* Various cleanup, improvements and fixes in the qcom driver
* Fixes for bugs detected by various static code analysis tools
* Fix mxc ooblayout definition
* Add a new part_parsers to tmio and sharpsl platform data in order to
define a custom list of partition parsers
* Request the reset line in exclusive mode in the sunxi driver
* Fix a build error in the orion-nand driver when compiled for ARMv4
* Allow 64-bit mvebu platforms to select the PXA3XX driver
"
Add devicetree bindings documentation file for Cirrus
Logic CS43130 codec.
Signed-off-by: Li Xu <li.xu@cirrus.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Some CPU drivers (e. g. davinci-mcasp) may require the system clock to
be configured as OUT, while there's no good way currently to set
SND_SOC_CLK_OUT in simple-soc driver if the clock is fixed-rate.
This patch makes asoc_simple_card_init_dai() initialize clock to
SND_SOCK_CLK_OUT if explicitly stated in the relevant dts file. This
change is transparent and doesn't change the default behavior.
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
DMA_MEMORY_IO was never used in the tree, so remove it. That means there is
no need for the DMA_MEMORY_MAP flag either now, so remove it as well and
change dma_declare_coherent_memory to return a normal errno value.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
This patch enables clocks for STM32H743 boards.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
for MFD changes:
Acked-by: Lee Jones <lee.jones@linaro.org>
for DT-Bindings
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add basic clock data for Socionext's new SoC PXs3.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The RTC can output its 32kHz clock outside of the SoC, for example to clock
a WiFi chip.
Create a new clock that other devices will be able to retrieve, while
maintaining the DT stability by providing a default name for that clock if
clock-output-names doesn't list one.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Add documentation for DT binding of Goldfish RTC driver. The compatible
string used by OS for binding the driver is "google,goldfish-rtc".
Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Many users have reported the lack of an HOWTO for properly configuring
bfq as a function of the goal one wants to achieve (max
responsiveness, max throughput, ...). In fact, all needed details are
already provided in the documentation file bfq-iosched.txt. Yet the
document lacks guidance on which parameter descriptions to look
at. This commit adds some simple direction.
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Reviewed-by: Jeremy Hickman <jeremywh7@gmail.com>
Reviewed-by: Laurentiu Nicola <lnicola@dend.ro>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In addition to containing some typos and stale sentences, the file
bfq-iosched.txt still mentioned a set of sysfs parameters that have
been removed from this version of bfq. This commit fixes all these
issues.
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Reviewed-by: Jeremy Hickman <jeremywh7@gmail.com>
Reviewed-by: Laurentiu Nicola <lnicola@dend.ro>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
On python3, Popen() universal_newlines=True converts the subprocess
stdout to unicode text using a codec based on user preferences. Given
LANG indicating ascii and utf-8 stdout from the subprocess, you'd get:
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno
../drivers/media/dvb-core/demux.h' processing failed with: 'ascii' codec can't
decode byte 0xe2 in position 6368: ordinal not in range(128)
Fix this by dropping universal_newlines=True and replacing the implicit
LANG specific decode with an explicit utf-8 decode. This also gets rid
of the annoying conditional code for python 2 vs. 3.
Fixes: ba35018593 ("Documentation/sphinx: fix kernel-doc extension on python3")
Reference: http://mid.mail-archive.com/54c23e8e-89c0-5cea-0dcc-e938952c5642@infradead.org
Reported-and-tested-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
- irqchip-specific part of the monster GICv4 series
- new UniPhier AIDET irqchip driver
- new variants of some Freescale MSI widget
- blanket removal of of_node->full_name in printk
- random collection of fixes
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Merge tag 'irqchip-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates for 4.14 from Marc Zyngier:
- irqchip-specific part of the monster GICv4 series
- new UniPhier AIDET irqchip driver
- new variants of some Freescale MSI widget
- blanket removal of of_node->full_name in printk
- random collection of fixes
Conversion of the last two SoCs (A10, A20) to the sunxi-ng framework.
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Merge tag 'sunxi-clk-for-4.14-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next
Pull more Allwinner clock changes from Maxime Ripard:
* Conversion of the last two SoCs (A10, A20) to the sunxi-ng framework
* tag 'sunxi-clk-for-4.14-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
clk: sunxi-ng: Add sun4i/sun7i CCU driver
dt-bindings: List devicetree binding for the CCU of Allwinner A10
dt-bindings: List devicetree binding for the CCU of Allwinner A20
This is board specific info so it should come from board config, such
as devicetree.
I've chosen to prefix these with "fcs," treating them as fusb302 driver
specific for now. We may want to revisit this and replace these with
properties which are part of a (to be written) generic type-c controller
devicetree binding.
Since this commit adds new dt-properties it also adds devicetree-bindings
documentation (which so far was absent for the fusb302 driver).
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: devicetree@vger.kernel.org
Cc: "Yueyao (Nathan) Zhu" <yueyao@google.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The mt8173-mtu3.txt actually holds the bindings for all mediatek
SoCs with usb3 DRD IP, so add a generic compatible and change the
name to mediatek,mtu3.txt.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The mt8173-xhci.txt actually holds the bindings for all mediatek
SoCs with xHCI controller, so add a generic compatible and change
the name to mediatek,mtk-xhci.txt to reflect that.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A MSI controller of LS1043a v1.0 only includes one MSIR and
is assigned one GIC interrupt. In order to support affinity,
LS1043a v1.1 MSI is assigned 4 MSIRs and 4 GIC interrupts.
But the MSIR has the different offset and only supports 8 MSIs.
The bits between variable bit_start and bit_end in structure
ls_scfg_msir are used to show 8 MSI interrupts. msir_irqs and
msir_base are added to describe the difference of MSI between
LS1043a v1.1 and other SoCs.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The patch is to fix typo of the Layerscape SCFG MSI dts compatible
strings. "1" is replaced by "l".
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This adds the device tree binding documentation for the mediatek thermal
controller found on Mediatek MT2712.
Signed-off-by: Louis Yu <louis.yu@mediatek.com>
Reviewed-by: Dawei Chien <dawei.chien@mediatek.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
In aic3x class of devices Output Common-Mode Voltage can be configured for
better analog performance.
The OCMV value depends on the Analog and digital domain power supply
voltage configuration.
The default OCMV of 1.35V gives best performance when AVDD is around 2.7V
and DVDD is 1.525V, but for higher AVDD/DVDD higher OCMV setting is
recommended.
The patch gives an automatic way of guessing the best OCMV which can be
overwritten by a DT parameter if needed.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds the binding documentation for Spreadtrum SC9860 pin
controller device.
Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In some scenarios, we should set some pins as input/output/pullup/pulldown
when the specified system goes into deep sleep mode, then when the system
goes into deep sleep mode, these pins will be set automatically by hardware.
That means some pins are not controlled by any specific driver in the OS, but
need to be controlled when entering sleep mode. Thus we introduce one sleep
state config into pinconf-generic for users to configure.
Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
HSDK board manages its clocks using various PLLs. These PLL have same
dividers and corresponding control registers mapped to different addresses.
So we add one common driver for such PLLs.
Each PLL on HSDK board consists of three dividers: IDIV, FBDIV and
ODIV. Output clock value is managed using these dividers.
We add pre-defined tables with supported rate values and appropriate
configurations of IDIV, FBDIV and ODIV for each value.
As of today we add support for PLLs that generate clock for the
HSDK arc cpus, system, ddr, AXI tunnel and hdmi.
By this patch we add support for several plls (arc cpus pll and others),
so we had to use two different init types: CLK_OF_DECLARE for arc cpus pll
and regular probing for others plls.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Implement vas_init() and vas_exit() functions for a new VAS module.
This VAS module is essentially a library for other device drivers
and kernel users of the NX coprocessors like NX-842 and NX-GZIP.
In the future this will be extended to add support for user space
to access the NX coprocessors.
VAS is currently only supported with 64K page size.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
There are two typos in the document, netvsc.txt,
regarding UDP hashing level. This patch fixes them.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Genalloc/genpool has kerneldoc comments, but nothing has ever been pulled
into the docs themselves. Here's a first attempt, repurposed from an
article I wrote at https://lwn.net/Articles/729653/.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The Marvell Armada 7K/8K SoCs contains an hardware block called COMPHY
that provides a number of shared PHYs used by various interfaces in the
SoC: network, SATA, PCIe, etc. This Device Tree binding allows to
describe this COMPHY hardware block.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sphinx will now generate the table of contents automatically, which
avoids having the ToC getting out of sync with the rest of the document.
Signed-off-by: Josh Holland <anowlcalledjosh@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Drop all references to git daily snapshots of Linux mainline git tree
since they are no longer generated.
Drop the "Last update" info since 'git log' is a better source of that
info and since the Last update date is not being updated.
Yes, I read that this file is obsolete, but it still has some useful
information in it.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add internal PCI bridge support for r8a7743/5 SoC. The Renesas RZ/G1[ME]
(R8A7743/5) internal PCI bridge is identical to the R-Car Gen2 family.
This doesn't change the driver, so it does nothing by itself. But it does
mean that checkpatch won't complain about a future patch that adds
"renesas,pci-r8a7743" to a DT, which helps ensure that shipped DTs use
documented compatibility strings.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
[bhelgaas: add explanatory note]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
RmNet driver provides a transport agnostic MAP (multiplexing and
aggregation protocol) support in embedded module. Module provides
virtual network devices which can be attached to any IP-mode
physical device. This will be used to provide all MAP functionality
on future hardware in a single consistent location.
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Document STM32 VREFBUF (voltage reference buffer) which can be used as
voltage reference for ADCs, DACs and external components.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Nodes without reg properties must not have unit addresses:
Warning (unit_address_vs_reg): Node .../rcar_sound,dvc/dvc@0 has a unit name, but no reg property
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
The TI LM5066I hotswap controller is a more accurate version of the
LM5066 device already supported. It has different measurement conversion
coefficients than the LM5066, so it needs to be recognized as a
different device.
Signed-off-by: Xo Wang <xow@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add controller support for MT2712/MT7622 and update related properties.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
To accommodate other SoC generations, regroup specific properties by SoC,
and remove redundant descriptions.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
[bhelgaas: split into a rename patch and a cleanup patch]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
To accommodate other SoC generations, rename mediatek,mt7623-pcie.txt to
mediatek-pcie.txt.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
[bhelgaas: split rename to separate patch so updates are obvious]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Add support for r8a7743/5 SoC. Renesas RZ/G1[ME] (R8A7743/5) SDHI
is identical to the R-Car Gen2 family.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The third MMC controller (MMC2) on the Allwinner A83T SoC is slightly
different. It supports a wider 8-bit bus, has a dedicated controllable
reset pin for eMMC, and a "new timing mode" which is supposed to deliver
better signals and thus better performance.
Add a compatible for this one to use the new timing mode not found in the
other controllers.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This is a revert of the EMAC bindings. The discussion has not settled down
yet on a proper representation of the PHY, and therefore we cannot commit
to a binding yet
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Merge tag 'sunxi-fixes-for-4.13-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes
Allwinner fixes for 4.13, take 3
This is a revert of the EMAC bindings. The discussion has not settled down
yet on a proper representation of the PHY, and therefore we cannot commit
to a binding yet
* tag 'sunxi-fixes-for-4.13-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm: dts: sunxi: Revert EMAC changes
arm64: dts: allwinner: Revert EMAC changes
dt-bindings: net: Revert sun8i dwmac binding
Signed-off-by: Olof Johansson <olof@lixom.net>
Add description for a new family SoC from Marvell: Armada-8KP.
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Merge tag 'mvebu-dt64-4.14-3' of git://git.infradead.org/linux-mvebu into next/dt64
mvebu dt64 for 4.14 (part 3)
Add description for a new family SoC from Marvell: Armada-8KP.
* tag 'mvebu-dt64-4.14-3' of git://git.infradead.org/linux-mvebu:
arm64: dts: marvell: add Device Tree files for Armada-8KP
Signed-off-by: Olof Johansson <olof@lixom.net>
Florian reported UDP xmit drops that could be root caused to the
too small neigh limit.
Current limit is 64 KB, meaning that even a single UDP socket would hit
it, since its default sk_sndbuf comes from net.core.wmem_default
(~212992 bytes on 64bit arches).
Once ARP/ND resolution is in progress, we should allow a little more
packets to be queued, at least for one producer.
Once neigh arp_queue is filled, a rogue socket should hit its sk_sndbuf
limit and either block in sendmsg() or return -EAGAIN.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ls2088a PCIe controller's register addresses are different from
ls2080a, so add a match entry to identify ls2088a PCIe.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Minghuan Lian <minghuan.Lian@nxp.com>
Explain that the patch queue in patchwork should not be touched by patch
submitters.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update description for newly added optional audio codecs.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
On Baseboard Management Controller (BMC) systems it's sometimes
necessary for a LED to retain its state across a BMC reset (which is
independent of the host system state). Add a devicetree property to
describe this behaviour. The property would typically be used in
conjunction with 'default-state = "keep"'.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Brandon Wyman <bjwyman@gmail.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
This adds the devicetree bindings for the PCA955x I2C LED blinkers.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Deprecate the legacy Rockchip PCIe PHY and encourage users to use per-lane
PHY mode by setting #phy-cells to 1.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Deprecate legacy PHY model and encourage per-lane PHY model.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Commit b053dc5a72 (powerpc: Refactor device tree binding) split the
Ethernet PHY binding documentation out of the big booting-without-of.txt
file, leaving a dangling reference to "section 2" in the 'interrupts'
property description. Drop that reference, and make the description look
more like the rest.
While at it, make the example interrupt-parent phandle look more like a
real world phandle, and use an IRQ_TYPE_ macro for the 'interrupts'
type.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Rob Herring <robh@kernel.org>
Add DT bindings for the onboard SATA controller present on the MediaTek
SoCs.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Allow for the enablement of MEF and the support for the extended
epoch in SIE and VSIE for the extended guest TOD-Clock.
A new interface is used for getting/setting a guest's extended TOD-Clock
that uses a single ioctl invocation, KVM_S390_VM_TOD_EXT. Since the
host time is a moving target that might see an epoch switch or STP sync
checks we need an atomic ioctl and cannot use the exisiting two
interfaces. The old method of getting and setting the guest TOD-Clock is
still retained and is used when the old ioctls are called.
Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Add document providing definitions of terms and core explanations
for tag matching (TM) protocols, eager and rendezvous,
TM application header, tag list manipulations and matching process.
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch adds the binding documentation for Spreadtrum I2C
controller device.
Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Allow a client call that failed on network error to be retried, provided
that the Tx queue still holds DATA packet 1. This allows an operation to
be submitted to another server or another address for the same server
without having to repackage and re-encrypt the data so far processed.
Two new functions are provided:
(1) rxrpc_kernel_check_call() - This is used to find out the completion
state of a call to guess whether it can be retried and whether it
should be retried.
(2) rxrpc_kernel_retry_call() - Disconnect the call from its current
connection, reset the state and submit it as a new client call to a
new address. The new address need not match the previous address.
A call may be retried even if all the data hasn't been loaded into it yet;
a partially constructed will be retained at the same point it was at when
an error condition was detected. msg_data_left() can be used to find out
how much data was packaged before the error occurred.
Signed-off-by: David Howells <dhowells@redhat.com>
Add a callback to rxrpc_kernel_send_data() so that a kernel service can get
a notification that the AF_RXRPC call has transitioned out the Tx phase and
is now waiting for a reply or a final ACK.
This is called from AF_RXRPC with the call state lock held so the
notification is guaranteed to come before any reply is passed back.
Further, modify the AFS filesystem to make use of this so that we don't have
to change the afs_call state before sending the last bit of data.
Signed-off-by: David Howells <dhowells@redhat.com>
The deprecated DT properties are part of the GIT history,
no need to keep them around any longer.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Remove the 32-bit CMT compat strings to reduce maintenance burden.
It should be fine to break DT compatibility because the 32-bit
CMT DT binding was never part of any upstream DTS file.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Add documentation for new separate CMT0 and CMT1 DT compatible strings
for R-Car Gen2. These compat strings allow us to enable CMT1-specific
features in the driver. The old compat strings will be deprecated in
the not so distant future.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Remove the sh7372 CMT compat string to reduce maintenance burden.
It should be fine to break DT compatibility because:
1) The sh7372 SoC support has been removed from upstream
2) The sh7372 CMT DT binding was never part of upstream DTS
3) The CMT driver never matches on the sh7372 binding
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
We add ability for all cores at NPS SoC to control the number of cycles
HW thread can execute before it is replace with another eligible
HW thread within the same core. The replacement is done by the
HW scheduler.
Signed-off-by: Noam Camus <noamca@mellanox.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: simplified handlign of out of range argument value]
The Documentation/power/states.txt document is now redundant and
sonewhat outdated, so delete it.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reorganize the power management part of admin-guide by adding a
description of major power management strategies supported by the
kernel (system-wide and working-state power management) to it and
dividing the rest of the material into the system-wide PM and
working-state PM chapters.
On top of that, add a description of system sleep states to the
system-wide PM chapter.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Document the devicetree bindings in 8250.txt for MediaTek BTIF
controller which could be found on MT7622 and MT7623 SoC.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Document support for the (H)SCIF serial ports in the Renesas R-Car D3
(r8a77995) SoC.
No driver update is needed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver provides PS/2 serio bus support by implementing bit banging
with the GPIO API. The GPIO pins, data and clock, can be configured with
a node in the device tree or by generic device properties (GDP).
Writing to a device is supported as well, though it is possible timings
can not be halt as they are tough and difficult to reach with bit banging.
Therefore it can be configured (also in DT and GDP) whether the serio
write function should be available for clients.
This driver is for development purposes and not recommended for productive
use. However, this driver can be useful e.g. when no USB port is available
or using old peripherals is desired as PS/2 controller chips getting rare.
This driver was tested on bcm2825 and on Kirin 960 and it worked well
together with the atkbd and psmouse driver.
Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
NVMEM has been in kernel since v4.2 but the ABI document was missing
since then. userspace interface did not change since then and seems
stable, so this patch documents the nvmem ABI.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The at24 driver allows to register I2C EEPROM chips using different vendor
and devices, but the I2C subsystem does not take the vendor into account
when matching using the I2C table since it only has device entries.
But when matching using an OF table, both the vendor and device has to be
taken into account so the driver defines only a set of compatible strings
using the "atmel" vendor as a generic fallback for compatible I2C devices.
Document in the Device Tree binding document that this manufacturer should
be used as the generic fallback. Also document the deprecated vendors.
Suggested-by: Wolfram Sang <wsa@the-dreams.de>
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This patch fixes the below warning
--> Use #include <linux/io.h> instead of <asm/io.h>
--> Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
--> please, no space before tabs
--> Block comments use a trailing */ on a separate line
--> Possible unnecessary 'out of memory' message
--> Block comments use * on subsequent lines
--> Block comments use a trailing */ on a separate line
--> braces {} are not necessary for any arm of this statement
--> DT compatible string "xlnx,opb-hwicap-1.00.b"
appears un-documented
--> DT compatible string "xlnx,xps-hwicap-1.00.a"
appears un-documented
Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
