This patch adds appropriate callbacks to support ACPI Low Power Idle
(LPI) on ARM64.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit ea389daa7fd9 (arm64: cpuidle: add __init section marker to
arm_cpuidle_init) added the __init annotation to arm_cpuidle_init
as it was not needed after booting which was correct at that time.
However with the introduction of ACPI LPI support, this will be used
from cpuhotplug path in ACPI processor driver.
This patch drops the __init annotation from arm_cpuidle_init to avoid
the following warning:
WARNING: vmlinux.o(.text+0x113c8): Section mismatch in reference from the
function acpi_processor_ffh_lpi_probe() to the function
.init.text:arm_cpuidle_init()
The function acpi_processor_ffh_lpi_probe() references
the function __init arm_cpuidle_init().
This is often because acpi_processor_ffh_lpi_probe() lacks a __init
annotation or the annotation of arm_cpuidle_init is wrong.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* kprobes:
arm64: kprobes: Add KASAN instrumentation around stack accesses
arm64: kprobes: Cleanup jprobe_return
arm64: kprobes: Fix overflow when saving stack
arm64: kprobes: WARN if attempting to step with PSTATE.D=1
kprobes: Add arm64 case in kprobe example module
arm64: Add kernel return probes support (kretprobes)
arm64: Add trampoline code for kretprobes
arm64: kprobes instruction simulation support
arm64: Treat all entry code as non-kprobe-able
arm64: Blacklist non-kprobe-able symbol
arm64: Kprobes with single stepping support
arm64: add conditional instruction simulation support
arm64: Add more test functions to insn.c
arm64: Add HAVE_REGS_AND_STACK_ACCESS_API feature
Passing "nosmp" should boot the kernel with a single processor, without
provision to enable secondary CPUs even if they are present. "nosmp" is
implemented by setting maxcpus=0. At the moment we still mark the secondary
CPUs present even with nosmp, which allows the userspace to bring them
up. This patch corrects the smp_prepare_cpus() to honor the maxcpus == 0.
Commit 44dbcc93ab67145 ("arm64: Fix behavior of maxcpus=N") fixed the
behavior for maxcpus >= 1, but broke maxcpus = 0.
Fixes: 44dbcc93ab67 ("arm64: Fix behavior of maxcpus=N")
Cc: <stable@vger.kernel.org> # 4.7+
Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
[catalin.marinas@arm.com: updated code comment]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
In smp_prepare_boot_cpu(), we invoke cpuinfo_store_boot_cpu to store
the cpuinfo in a per-cpu ptr, before initialising the per-cpu offset for
the boot CPU. This patch reorders the sequence to make sure we initialise
the per-cpu offset before accessing the per-cpu area.
Commit 4b998ff1885eec ("arm64: Delay cpuinfo_store_boot_cpu") fixed the
issue where we modified the per-cpu area even before the kernel initialises
the per-cpu areas, but failed to wait until the boot cpu updated it's
offset.
Fixes: 4b998ff1885e ("arm64: Delay cpuinfo_store_boot_cpu")
Cc: <stable@vger.kernel.org> # 4.4+
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
jprobe_return seems to have aged badly. Comments referring to
non-existent behaviours, and a dangerous habit of messing
with registers without telling the compiler.
This patches applies the following remedies:
- Fix the comments to describe the actual behaviour
- Tidy up the asm sequence to directly assign the
stack pointer without clobbering extra registers
- Mark the rest of the function as unreachable() so
that the compiler knows that there is no need for
an epilogue
- Stop making jprobe_return_break a global function
(you really don't want to call that guy, and it isn't
even a function).
Tested with tcp_probe.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The MIN_STACK_SIZE macro tries evaluate how much stack space needs
to be saved in the jprobes_stack array, sized at 128 bytes.
When using the IRQ stack, said macro can happily return up to
IRQ_STACK_SIZE, which is 16kB. Mayhem follows.
This patch fixes things by getting rid of the crazy macro and
limiting the copy to be at most the size of the jprobes_stack
array, no matter which stack we're on.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Stepping with PSTATE.D=1 is bad news. The step won't generate a debug
exception and we'll likely walk off into random data structures. This
should never happen, but when it does, it's a PITA to debug. Add a
WARN_ON to shout if we realise this is about to take place.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The debug enable/disable macros are not used anywhere in the kernel, so
remove them from irqflags.h
Reported-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
There is no need to explicitly clear the SS bit immediately before
setting it unconditionally.
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Clearing PSTATE.D is one of the requirements for generating a debug
exception. The arm64 booting protocol requires that PSTATE.D is set,
since many of the debug registers (for example, the hw_breakpoint
registers) are UNKNOWN out of reset and could potentially generate
spurious, fatal debug exceptions in early boot code if PSTATE.D was
clear. Once the debug registers have been safely initialised, PSTATE.D
is cleared, however this is currently broken for two reasons:
(1) The boot CPU clears PSTATE.D in a postcore_initcall and secondary
CPUs clear PSTATE.D in secondary_start_kernel. Since the initcall
runs after SMP (and the scheduler) have been initialised, there is
no guarantee that it is actually running on the boot CPU. In this
case, the boot CPU is left with PSTATE.D set and is not capable of
generating debug exceptions.
(2) In a preemptible kernel, we may explicitly schedule on the IRQ
return path to EL1. If an IRQ occurs with PSTATE.D set in the idle
thread, then we may schedule the kthread_init thread, run the
postcore_initcall to clear PSTATE.D and then context switch back
to the idle thread before returning from the IRQ. The exception
return path will then restore PSTATE.D from the stack, and set it
again.
This patch fixes the problem by moving the clearing of PSTATE.D earlier
to proc.S. This has the desirable effect of clearing it in one place for
all CPUs, long before we have to worry about the scheduler or any
exception handling. We ensure that the previous reset of MDSCR_EL1 has
completed before unmasking the exception, so that any spurious
exceptions resulting from UNKNOWN debug registers are not generated.
Without this patch applied, the kprobes selftests have been seen to fail
under KVM, where we end up attempting to step the OOL instruction buffer
with PSTATE.D set and therefore fail to complete the step.
Cc: <stable@vger.kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
We currently define OBJCOPYFLAGS in the top-level arm64 Makefile, and
thus these flags will be passed to all uses of objcopy, kernel-wide, for
which they are not explicitly overridden. The flags we set are intended
for converting vmlinux (and ELF) into Image (a raw binary), and thus the
flags chosen are problematic for some other uses which do not expect a
raw binary result, e.g. the upcoming lkdtm rodata test:
http://www.openwall.com/lists/kernel-hardening/2016/06/08/2
This patch localises the objcopy flags such that they are only used for
the vmlinux -> Image conversion.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Tested-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
...and do not confuse source navigation tools ;)
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The pre-handler of this special 'trampoline' kprobe executes the return
probe handler functions and restores original return address in ELR_EL1.
This way the saved pt_regs still hold the original register context to be
carried back to the probed kernel function.
Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The trampoline code is used by kretprobes to capture a return from a probed
function. This is done by saving the registers, calling the handler, and
restoring the registers. The code then returns to the original saved caller
return address. It is necessary to do this directly instead of using a
software breakpoint because the code used in processing that breakpoint
could itself be kprobe'd and cause a problematic reentry into the debug
exception handler.
Signed-off-by: William Cohen <wcohen@redhat.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
[catalin.marinas@arm.com: removed unnecessary masking of the PSTATE bits]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Kprobes needs simulation of instructions that cannot be stepped
from a different memory location, e.g.: those instructions
that uses PC-relative addressing. In simulation, the behaviour
of the instruction is implemented using a copy of pt_regs.
The following instruction categories are simulated:
- All branching instructions(conditional, register, and immediate)
- Literal access instructions(load-literal, adr/adrp)
Conditional execution is limited to branching instructions in
ARM v8. If conditions at PSTATE do not match the condition fields
of opcode, the instruction is effectively NOP.
Thanks to Will Cohen for assorted suggested changes.
Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com>
Signed-off-by: William Cohen <wcohen@redhat.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
[catalin.marinas@arm.com: removed linux/module.h include]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Entry symbols are not kprobe safe. So blacklist them for kprobing.
Signed-off-by: Pratyush Anand <panand@redhat.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
[catalin.marinas@arm.com: Do not include syscall wrappers in .entry.text]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Add all function symbols which are called from do_debug_exception under
NOKPROBE_SYMBOL, as they can not kprobed.
Signed-off-by: Pratyush Anand <panand@redhat.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Add support for basic kernel probes(kprobes) and jump probes
(jprobes) for ARM64.
Kprobes utilizes software breakpoint and single step debug
exceptions supported on ARM v8.
A software breakpoint is placed at the probe address to trap the
kernel execution into the kprobe handler.
ARM v8 supports enabling single stepping before the break exception
return (ERET), with next PC in exception return address (ELR_EL1). The
kprobe handler prepares an executable memory slot for out-of-line
execution with a copy of the original instruction being probed, and
enables single stepping. The PC is set to the out-of-line slot address
before the ERET. With this scheme, the instruction is executed with the
exact same register context except for the PC (and DAIF) registers.
Debug mask (PSTATE.D) is enabled only when single stepping a recursive
kprobe, e.g.: during kprobes reenter so that probed instruction can be
single stepped within the kprobe handler -exception- context.
The recursion depth of kprobe is always 2, i.e. upon probe re-entry,
any further re-entry is prevented by not calling handlers and the case
counted as a missed kprobe).
Single stepping from the x-o-l slot has a drawback for PC-relative accesses
like branching and symbolic literals access as the offset from the new PC
(slot address) may not be ensured to fit in the immediate value of
the opcode. Such instructions need simulation, so reject
probing them.
Instructions generating exceptions or cpu mode change are rejected
for probing.
Exclusive load/store instructions are rejected too. Additionally, the
code is checked to see if it is inside an exclusive load/store sequence
(code from Pratyush).
System instructions are mostly enabled for stepping, except MSR/MRS
accesses to "DAIF" flags in PSTATE, which are not safe for
probing.
This also changes arch/arm64/include/asm/ptrace.h to use
include/asm-generic/ptrace.h.
Thanks to Steve Capper and Pratyush Anand for several suggested
Changes.
Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Signed-off-by: Pratyush Anand <panand@redhat.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cease using the arm32 arm_check_condition() function and replace it with
a local version for use in deprecated instruction support on arm64. Also
make the function table used by this available for future use by kprobes
and/or uprobes.
This function is derived from code written by Sandeepa Prabhu.
Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Certain instructions are hard to execute correctly out-of-line (as in
kprobes). Test functions are added to insn.[hc] to identify these. The
instructions include any that use PC-relative addressing, change the PC,
or change interrupt masking. For efficiency and simplicity test
functions are also added for small collections of related instructions.
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Add HAVE_REGS_AND_STACK_ACCESS_API feature for arm64, including supporting
functions and defines.
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
[catalin.marinas@arm.com: Remove unused functions]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Now that all ITS emulation functionality is in place, we advertise
MSI functionality to userland and also the ITS device to the guest - if
userland has configured that.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Introduce a new KVM device that represents an ARM Interrupt Translation
Service (ITS) controller. Since there can be multiple of this per guest,
we can't piggy back on the existing GICv3 distributor device, but create
a new type of KVM device.
On the KVM_CREATE_DEVICE ioctl we allocate and initialize the ITS data
structure and store the pointer in the kvm_device data.
Upon an explicit init ioctl from userland (after having setup the MMIO
address) we register the handlers with the kvm_io_bus framework.
Any reference to an ITS thus has to go via this interface.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
KVM capabilities can be a per-VM property, though ARM/ARM64 currently
does not pass on the VM pointer to the architecture specific
capability handlers.
Add a "struct kvm*" parameter to those function to later allow proper
per-VM capability reporting.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Eric Auger <eric.auger@linaro.org>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
We merged two patches that both enabled CONFIG_PWM, leading to a harmless
warning:
arch/arm64/configs/defconfig:352:warning: override: reassigning to symbol PWM
This removes one of the two identical lines to avoid the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A slew of updates for Tegra210 support: PMIC and regulator additions,
which in turn allow a bunch of features to be enabled. Some assemblies
of the Jetson TX1 come with a DSI panel that is now supported. For all
other assemblies, this set of changes enables the HDMI output. Jetson
TX1 can now also make use of the XUSB controller.
PMIC and regulator support is also added for Smaug, which will allow a
number of interesting feature additions in future releases.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=3zUA
-----END PGP SIGNATURE-----
Merge tag 'tegra-for-4.8-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/late
Merge "arm64: tegra: Device tree changes for v4.8-rc1" from Thierry Reding:
A slew of updates for Tegra210 support: PMIC and regulator additions,
which in turn allow a bunch of features to be enabled. Some assemblies
of the Jetson TX1 come with a DSI panel that is now supported. For all
other assemblies, this set of changes enables the HDMI output. Jetson
TX1 can now also make use of the XUSB controller.
PMIC and regulator support is also added for Smaug, which will allow a
number of interesting feature additions in future releases.
* tag 'tegra-for-4.8-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
arm64: tegra: Enable HDMI on Jetson TX1
arm64: tegra: Add sor1_src clock
arm64: tegra: Add XUSB powergates on Tegra210
arm64: tegra: Add DPAUX pinctrl bindings
arm64: tegra: Add ACONNECT bus node for Tegra210
arm64: tegra: Add audio powergate node for Tegra210
arm64: tegra: Add regulators for Tegra210 Smaug
arm64: tegra: Correct Tegra210 XUSB mailbox interrupt
arm64: tegra: Enable XUSB controller on Jetson TX1
arm64: tegra: Enable debug serial on Jetson TX1
arm64: tegra: Add Tegra210 XUSB controller
arm64: tegra: Add Tegra210 XUSB pad controller
arm64: tegra: Add DSI panel on Jetson TX1
arm64: tegra: p2597: Add SDMMC power supplies
arm64: tegra: Add PMIC support on Jetson TX1
Merge "ARM64: DT: Hisilicon Hi6220 updates for 4.8" from Wei Xu:
- Add pl031 rtc0 and rtc1 support for hi6220 SoC
* tag 'hi6220-dt-for-4.8-2' of git://github.com/hisilicon/linux-hisi:
arm64: dts: hi6220: Add pl031 RTC support
clk: hi6220: Add RTC clock for pl031
The sor1 IP block needs the sor1_src clock to configure the clock tree
depending on whether it's running in HDMI or DP mode.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The Tegra210 XUSB subsystem has 3 power partitions which are XUSBA
(super-speed logic), XUSBB (USB device logic) and XUSBC (USB host
logic). Populate the device-tree nodes for these XUSB partitions.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add the DPAUX pinctrl states for the DPAUX nodes defining all three
possible states of "aux", "i2c" and "off". Also add the 'i2c-bus'
node for the DPAUX nodes so that the I2C driver core does not attempt
to parse the pinctrl state nodes.
Populate the nodes for the pinctrl clients of the DPAUX pin controller.
There are two clients for each DPAUX instance, namely the SOR and one of
the I2C adapters. The SOR clients may used the DPAUX pins in either AUX
or I2C modes and so for these devices we don't define any of the generic
pinctrl states (default, idle, etc) because the SOR driver will directly
set the state needed. For I2C clients only the I2C mode is used and so
we can simplify matters by using the generic pinctrl states for default
and idle.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add the ACONNECT bus node for Tegra210 which is used to interface to
the various devices in the Audio Processing Engine (APE).
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add regulators to the Tegra210 Smaug DTS file including support for the
MAX77620 PMIC.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The XUSB mailbox interrupt for Tegra210 is 40 and not 49 which is for
the XUSB pad controller. For some Tegra210 boards, this is causing USB
connect and disconnect events to go undetected. Fix this by changing the
interrupt number for the XUSB mailbox to 40.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Enable the XUSB controller on Jetson TX1. One of the USB 3.0 lanes goes
to an internal ethernet interface, while a second USB 3.0 lane supports
the USB-A receptacle on the I/O board.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add a chosen node to the device tree that contains a stdout-path
property which defines the debug serial port.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add a device tree node for the Tegra XUSB controller. It contains a
phandle to the XUSB pad controller for control of the PHYs assigned
to the USB ports.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add power supplies for the SD/MMC card slot. Note that vmmc-supply is
currently restricted to 3.3 V because we don't support switching the
mode yet.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add a device tree node for the MAX77620 PMIC found on the p2180
processor module (Jetson TX1). Also add supporting power supplies,
such as the main 5 V system supply.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Enable a bunch of configuration options to enable PMIC, regulators, DSI,
HDMI, XUSB and the GPU on Jetson TX1 as well as a few new features that
are now functional on the Google Pixel C.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=483Z
-----END PGP SIGNATURE-----
Merge tag 'tegra-for-4.8-arm64-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/arm64
Merge "arm64: tegra: Default configuration updates for v4.8-rc1" from Thierry Reding:
Enable a bunch of configuration options to enable PMIC, regulators, DSI,
HDMI, XUSB and the GPU on Jetson TX1 as well as a few new features that
are now functional on the Google Pixel C.
* tag 'tegra-for-4.8-arm64-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
arm64: Update default configuration
1. Adjust the voltage of CPU buck regulator so scaling could work.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=ku6i
-----END PGP SIGNATURE-----
Merge tag 'samsung-dt64-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt64
Merge "Samsung DeviceTree changes for ARM64 for v4.8" from Krzysztof Kozlowski:
1. Adjust the voltage of CPU buck regulator so scaling could work.
* tag 'samsung-dt64-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
arm64: dts: exynos: Modify the voltage range for BUCK2 for exynos7
My static checker complains that this condition looks like it should be
== instead of =. This isn't a fast path, so we don't need to be fancy.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
1. Adds various CoreSight debug components on Juno boards
2. Adds SCPI device power domains and use them for coresight components
3. Adds thermal zones for SCPI sensors on Juno
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=bxrw
-----END PGP SIGNATURE-----
Merge tag 'juno-dt-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into next/dt64
Merge "Juno platform DT updates for v4.8" from Sudeep Holla:
1. Adds various CoreSight debug components on Juno boards
2. Adds SCPI device power domains and use them for coresight components
3. Adds thermal zones for SCPI sensors on Juno
* tag 'juno-dt-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
arm64: dts: juno: add thermal zones for scpi sensors
arm64: dts: juno: add SCPI power domains for device power management
arm64: dts: juno: add coresight support
