We will use it to count how many addresses are in the entry->ip[] array,
excluding PERF_CONTEXT_{KERNEL,USER,etc} entries, so that we can really
return the number of entries specified by the user via the relevant
sysctl, kernel.perf_event_max_contexts, or via the per event
perf_event_attr.sample_max_stack knob.
This way we keep the perf_sample->ip_callchain->nr meaning, that is the
number of entries, be it real addresses or PERF_CONTEXT_ entries, while
honouring the max_stack knobs, i.e. the end result will be max_stack
entries if we have at least that many entries in a given stack trace.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-s8teto51tdqvlfhefndtat9r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This makes perf_callchain_{user,kernel}() receive the max stack
as context for the perf_callchain_entry, instead of accessing
the global sysctl_perf_event_max_stack.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/n/tip-kolmn1yo40p7jhswxwrc7rrd@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
- Add TRACE support to be able to debug request flow
- Extend/improve reset support for (e)MMC
- Convert MMC pwrseq to platform device drivers
- Use IDA for indexes
- Some additional minor improvements
MMC host:
- sdhci: Re-factoring, clean-ups and improvements
- sdhci-acpi|pci: Use MMC_CAP_AGGRESSIVE_PM for Broxton
- omap/omap_hsmmc: Convert to use dma_request_chan()
- usdhi6rol0: Add support for UHS modes
- sh_mmcif: Update runtime PM support
- tmio: Wolfram Sang steps in as maintainer
- tmio: Add UHS-I mode support
- sh_mobile_sdhi: Add UHS-I mode support
- tmio/sdhi: Re-factoring, clean-ups and improvements
- dw_mmc: Re-factoring and clean-ups
- davinci: Convert to use dma_request_chan()
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Merge tag 'mmc-v4.7' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Add TRACE support to be able to debug request flow
- Extend/improve reset support for (e)MMC
- Convert MMC pwrseq to platform device drivers
- Use IDA for indexes
- Some additional minor improvements
MMC host:
- sdhci: Re-factoring, clean-ups and improvements
- sdhci-acpi|pci: Use MMC_CAP_AGGRESSIVE_PM for Broxton
- omap/omap_hsmmc: Convert to use dma_request_chan()
- usdhi6rol0: Add support for UHS modes
- sh_mmcif: Update runtime PM support
- tmio: Wolfram Sang steps in as maintainer
- tmio: Add UHS-I mode support
- sh_mobile_sdhi: Add UHS-I mode support
- tmio/sdhi: Re-factoring, clean-ups and improvements
- dw_mmc: Re-factoring and clean-ups
- davinci: Convert to use dma_request_chan()"
* tag 'mmc-v4.7' of git://git.linaro.org/people/ulf.hansson/mmc: (99 commits)
mmc: mmc: Fix partition switch timeout for some eMMCs
mmc: sh_mobile_sdhi: enable SDIO IRQs for RCar Gen3
mmc: sdio: fall back to SDIO 1.0 for broken 1.1 cards
mmc: sdhci-st: correct name of sd-uhs-sdr50 property
MAINTAINERS: update entry for TMIO MMC driver
mmc: block: improve logging of handling emmc timeouts
mmc: sdhci: removed unneeded function wrappers
mmc: core: remove the invalid message in mmc_select_timing
mmc: core: fix using wrong io voltage if mmc_select_hs200 fails
mmc: sdhci-of-arasan: fix set_clock when a phy is supported
mmc: omap: Use dma_request_chan() for requesting DMA channel
mmc: mmc: Attempt to flush cache before reset
mmc: sh_mobile_sdhi: check return value when changing clk
mmc: sh_mobile_sdhi: only change the clock on RCar Gen2+
mmc: tmio/sdhi: introduce flag for RCar 2+ specific features
mmc: sh_mobile_sdhi: make clk_update function more compact
mmc: omap_hsmmc: Use dma_request_chan() for requesting DMA channel
mmc: sdhci-of-at91: add presets setup
mmc: usdhi6rol0: add pinctrl to set pin drive strength
mmc: usdhi6rol0: add support for UHS modes
...
* Remove ad-hoc buffering of MCE records in sb_edac and i7core_edac. (Tony Luck)
* Do not register sb_edac with pci_register_driver(). (Tony Luck)
* Add support for Skylake to ie31200_edac. (Jason Baron)
* Do not register amd64_edac with pci_register_driver(). (Borislav Petkov)
+ the usual round of cleanups and fixes all over the place.
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Merge tag 'edac_for_4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"It was pretty busy in EDAC land this time:
- Altera Arria10 L2 cache and On-Chip RAM ECC handling (Thor Thayer)
- Remove ad-hoc buffering of MCE records in sb_edac and i7core_edac
(Tony Luck)
- Do not register sb_edac with pci_register_driver() (Tony Luck)
- Add support for Skylake to ie31200_edac (Jason Baron)
- Do not register amd64_edac with pci_register_driver() (Borislav
Petkov)
... plus the usual round of cleanups and fixes all over the place"
* tag 'edac_for_4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (25 commits)
EDAC, amd64_edac: Drop pci_register_driver() use
EDAC, ie31200_edac: Add Skylake support
EDAC, sb_edac: Use cpu family/model in driver detection
EDAC, i7core: Remove double buffering of error records
EDAC, amd64_edac: Issue driver banner only on success
ARM: socfpga: Initialize Arria10 OCRAM ECC on startup
EDAC: Increment correct counter in edac_inc_ue_error()
EDAC, sb_edac: Remove double buffering of error records
EDAC: Fix used after kfree() error in edac_unregister_sysfs()
EDAC, altera: Avoid unused function warnings
EDAC, altera: Remove useless casts
ARM: socfpga: Enable Arria10 OCRAM ECC on startup
EDAC, altera: Add Arria10 OCRAM ECC support
Documentation: dt: socfpga: Add Altera Arria10 OCRAM binding
EDAC, altera: Make OCRAM ECC dependency check generic
EDAC, altera: Add register offset for ECC Enable
EDAC, altera: Extract error inject operations to a struct fops
ARM: socfpga: Enable Arria10 L2 cache ECC on startup
EDAC, altera: Add Arria10 L2 Cache ECC handling
Documentation, dt, socfpga: Add Altera Arria10 L2 cache binding
...
- virt_to_page/page_address optimisations
- Support for NUMA systems described using device-tree
- Support for hibernate/suspend-to-disk
- Proper support for maxcpus= command line parameter
- Detection and graceful handling of AArch64-only CPUs
- Miscellaneous cleanups and non-critical fixes
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
- virt_to_page/page_address optimisations
- support for NUMA systems described using device-tree
- support for hibernate/suspend-to-disk
- proper support for maxcpus= command line parameter
- detection and graceful handling of AArch64-only CPUs
- miscellaneous cleanups and non-critical fixes
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits)
arm64: do not enforce strict 16 byte alignment to stack pointer
arm64: kernel: Fix incorrect brk randomization
arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
arm64: secondary_start_kernel: Remove unnecessary barrier
arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
arm64: Replace hard-coded values in the pmd/pud_bad() macros
arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
arm64: Fix typo in the pmdp_huge_get_and_clear() definition
arm64: mm: remove unnecessary EXPORT_SYMBOL_GPL
arm64: always use STRICT_MM_TYPECHECKS
arm64: kvm: Fix kvm teardown for systems using the extended idmap
arm64: kaslr: increase randomization granularity
arm64: kconfig: drop CONFIG_RTC_LIB dependency
arm64: make ARCH_SUPPORTS_DEBUG_PAGEALLOC depend on !HIBERNATION
arm64: hibernate: Refuse to hibernate if the boot cpu is offline
arm64: kernel: Add support for hibernate/suspend-to-disk
PM / Hibernate: Call flush_icache_range() on pages restored in-place
arm64: Add new asm macro copy_page
arm64: Promote KERNEL_START/KERNEL_END definitions to a header file
arm64: kernel: Include _AC definition in page.h
...
Pull scheduler updates from Ingo Molnar:
- massive CPU hotplug rework (Thomas Gleixner)
- improve migration fairness (Peter Zijlstra)
- CPU load calculation updates/cleanups (Yuyang Du)
- cpufreq updates (Steve Muckle)
- nohz optimizations (Frederic Weisbecker)
- switch_mm() micro-optimization on x86 (Andy Lutomirski)
- ... lots of other enhancements, fixes and cleanups.
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (66 commits)
ARM: Hide finish_arch_post_lock_switch() from modules
sched/core: Provide a tsk_nr_cpus_allowed() helper
sched/core: Use tsk_cpus_allowed() instead of accessing ->cpus_allowed
sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems
sched/fair: Correct unit of load_above_capacity
sched/fair: Clean up scale confusion
sched/nohz: Fix affine unpinned timers mess
sched/fair: Fix fairness issue on migration
sched/core: Kill sched_class::task_waking to clean up the migration logic
sched/fair: Prepare to fix fairness problems on migration
sched/fair: Move record_wakee()
sched/core: Fix comment typo in wake_q_add()
sched/core: Remove unused variable
sched: Make hrtick_notifier an explicit call
sched/fair: Make ilb_notifier an explicit call
sched/hotplug: Make activate() the last hotplug step
sched/hotplug: Move migration CPU_DYING to sched_cpu_dying()
sched/migration: Move CPU_ONLINE into scheduler state
sched/migration: Move calc_load_migrate() into CPU_DYING
sched/migration: Move prepare transition to SCHED_STARTING state
...
Pull perf updates from Ingo Molnar:
"Bigger kernel side changes:
- Add backwards writing capability to the perf ring-buffer code,
which is preparation for future advanced features like robust
'overwrite support' and snapshot mode. (Wang Nan)
- Add pause and resume ioctls for the perf ringbuffer (Wang Nan)
- x86 Intel cstate code cleanups and reorgnization (Thomas Gleixner)
- x86 Intel uncore and CPU PMU driver updates (Kan Liang, Peter
Zijlstra)
- x86 AUX (Intel PT) related enhancements and updates (Alexander
Shishkin)
- x86 MSR PMU driver enhancements and updates (Huang Rui)
- ... and lots of other changes spread out over 40+ commits.
Biggest tooling side changes:
- 'perf trace' features and enhancements. (Arnaldo Carvalho de Melo)
- BPF tooling updates (Wang Nan)
- 'perf sched' updates (Jiri Olsa)
- 'perf probe' updates (Masami Hiramatsu)
- ... plus 200+ other enhancements, fixes and cleanups to tools/
The merge commits, the shortlog and the changelogs contain a lot more
details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (249 commits)
perf/core: Disable the event on a truncated AUX record
perf/x86/intel/pt: Generate PMI in the STOP region as well
perf buildid-cache: Use lsdir() for looking up buildid caches
perf symbols: Use lsdir() for the search in kcore cache directory
perf tools: Use SBUILD_ID_SIZE where applicable
perf tools: Fix lsdir to set errno correctly
perf trace: Move seccomp args beautifiers to tools/perf/trace/beauty/
perf trace: Move flock op beautifier to tools/perf/trace/beauty/
perf build: Add build-test for debug-frame on arm/arm64
perf build: Add build-test for libunwind cross-platforms support
perf script: Fix export of callchains with recursion in db-export
perf script: Fix callchain addresses in db-export
perf script: Fix symbol insertion behavior in db-export
perf symbols: Add dso__insert_symbol function
perf scripting python: Use Py_FatalError instead of die()
perf tools: Remove xrealloc and ALLOC_GROW
perf help: Do not use ALLOC_GROW in add_cmd_list
perf pmu: Make pmu_formats_string to check return value of strbuf
perf header: Make topology checkers to check return value of strbuf
perf tools: Make alias handler to check return value of strbuf
...
Pull EFI updates from Ingo Molnar:
"The main changes in this cycle were:
- Drop the unused EFI_SYSTEM_TABLES efi.flags bit and ensure the
ARM/arm64 EFI System Table mapping is read-only (Ard Biesheuvel)
- Add a comment to explain that one of the code paths in the x86/pat
code is only executed for EFI boot (Matt Fleming)
- Improve Secure Boot status checks on arm64 and handle unexpected
errors (Linn Crosetto)
- Remove the global EFI memory map variable 'memmap' as the same
information is already available in efi::memmap (Matt Fleming)
- Add EFI Memory Attribute table support for ARM/arm64 (Ard
Biesheuvel)
- Add EFI GOP framebuffer support for ARM/arm64 (Ard Biesheuvel)
- Add EFI Bootloader Control driver for storing reboot(2) data in EFI
variables for consumption by bootloaders (Jeremy Compostella)
- Add Core EFI capsule support (Matt Fleming)
- Add EFI capsule char driver (Kweh, Hock Leong)
- Unify EFI memory map code for ARM and arm64 (Ard Biesheuvel)
- Add generic EFI support for detecting when firmware corrupts CPU
status register bits (like IRQ flags) when performing EFI runtime
service calls (Mark Rutland)
... and other misc cleanups"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
efivarfs: Make efivarfs_file_ioctl() static
efi: Merge boolean flag arguments
efi/capsule: Move 'capsule' to the stack in efi_capsule_supported()
efibc: Fix excessive stack footprint warning
efi/capsule: Make efi_capsule_pending() lockless
efi: Remove unnecessary (and buggy) .memmap initialization from the Xen EFI driver
efi/runtime-wrappers: Remove ARCH_EFI_IRQ_FLAGS_MASK #ifdef
x86/efi: Enable runtime call flag checking
arm/efi: Enable runtime call flag checking
arm64/efi: Enable runtime call flag checking
efi/runtime-wrappers: Detect firmware IRQ flag corruption
efi/runtime-wrappers: Remove redundant #ifdefs
x86/efi: Move to generic {__,}efi_call_virt()
arm/efi: Move to generic {__,}efi_call_virt()
arm64/efi: Move to generic {__,}efi_call_virt()
efi/runtime-wrappers: Add {__,}efi_call_virt() templates
efi/arm-init: Reserve rather than unmap the memory map for ARM as well
efi: Add misc char driver interface to update EFI firmware
x86/efi: Force EFI reboot to process pending capsules
efi: Add 'capsule' update support
...
Split the HAVE_BPF_JIT into two for distinguishing cBPF and eBPF JITs.
Current cBPF ones:
# git grep -n HAVE_CBPF_JIT arch/
arch/arm/Kconfig:44: select HAVE_CBPF_JIT
arch/mips/Kconfig:18: select HAVE_CBPF_JIT if !CPU_MICROMIPS
arch/powerpc/Kconfig:129: select HAVE_CBPF_JIT
arch/sparc/Kconfig:35: select HAVE_CBPF_JIT
Current eBPF ones:
# git grep -n HAVE_EBPF_JIT arch/
arch/arm64/Kconfig:61: select HAVE_EBPF_JIT
arch/s390/Kconfig:126: select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
arch/x86/Kconfig:94: select HAVE_EBPF_JIT if X86_64
Later code also needs this facility to check for eBPF JITs.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
* pm-cpuidle:
cpuidle: Replace ktime_get() with local_clock()
drivers: firmware: psci: use const and __initconst for psci_cpuidle_ops
soc: qcom: spm: Use const and __initconst for qcom_cpuidle_ops
ARM: cpuidle: constify return value of arm_cpuidle_get_ops()
ARM: cpuidle: add const qualifier to cpuidle_ops member in structures
intel_idle: add BXT support
cpuidle: Indicate when a device has been unregistered
* pm-cpufreq: (63 commits)
intel_pstate: Clean up get_target_pstate_use_performance()
intel_pstate: Use sample.core_avg_perf in get_avg_pstate()
intel_pstate: Clarify average performance computation
intel_pstate: Avoid unnecessary synchronize_sched() during initialization
cpufreq: schedutil: Make default depend on CONFIG_SMP
cpufreq: powernv: del_timer_sync when global and local pstate are equal
cpufreq: powernv: Move smp_call_function_any() out of irq safe block
intel_pstate: Clean up intel_pstate_get()
cpufreq: schedutil: Make it depend on CONFIG_SMP
cpufreq: governor: Fix handling of special cases in dbs_update()
cpufreq: intel_pstate: Ignore _PPC processing under HWP
cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
cpufreq: tango: Use generic platdev driver
cpufreq: Fix GOV_LIMITS handling for the userspace governor
cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/
cpufreq: dt: Kill platform-data
mvebu: Use dev_pm_opp_set_sharing_cpus() to mark OPP tables as shared
cpufreq: dt: Identify cpu-sharing for platforms without operating-points-v2
cpufreq: governor: Change confusing struct field and variable names
cpufreq: intel_pstate: Enable PPC enforcement for servers
...
The nf_conntrack_core.c fix in 'net' is not relevant in 'net-next'
because we no longer have a per-netns conntrack hash.
The ip_gre.c conflict as well as the iwlwifi ones were cases of
overlapping changes.
Conflicts:
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
net/ipv4/ip_gre.c
net/netfilter/nf_conntrack_core.c
Signed-off-by: David S. Miller <davem@davemloft.net>
Some wakeups should not be considered a sucessful poll. For example on
s390 I/O interrupts are usually floating, which means that _ALL_ CPUs
would be considered runnable - letting all vCPUs poll all the time for
transactional like workload, even if one vCPU would be enough.
This can result in huge CPU usage for large guests.
This patch lets architectures provide a way to qualify wakeups if they
should be considered a good/bad wakeups in regard to polls.
For s390 the implementation will fence of halt polling for anything but
known good, single vCPU events. The s390 implementation for floating
interrupts does a wakeup for one vCPU, but the interrupt will be delivered
by whatever CPU checks first for a pending interrupt. We prefer the
woken up CPU by marking the poll of this CPU as "good" poll.
This code will also mark several other wakeup reasons like IPI or
expired timers as "good". This will of course also mark some events as
not sucessful. As KVM on z runs always as a 2nd level hypervisor,
we prefer to not poll, unless we are really sure, though.
This patch successfully limits the CPU usage for cases like uperf 1byte
transactional ping pong workload or wakeup heavy workload like OLTP
while still providing a proper speedup.
This also introduced a new vcpu stat "halt_poll_no_tuning" that marks
wakeups that are considered not good for polling.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Radim Krčmář <rkrcmar@redhat.com> (for an earlier version)
Cc: David Matlack <dmatlack@google.com>
Cc: Wanpeng Li <kernellwp@gmail.com>
[Rename config symbol. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The introduction of switch_mm_irqs_off() brought back an old bug
regarding the use of preempt_enable_no_resched:
As part of:
62b94a08da ("sched/preempt: Take away preempt_enable_no_resched() from modules")
the definition of preempt_enable_no_resched() is only available in
built-in code, not in loadable modules, so we can't generally use
it from header files.
However, the ARM version of finish_arch_post_lock_switch()
calls preempt_enable_no_resched() and is defined as a static
inline function in asm/mmu_context.h. This in turn means we cannot
include asm/mmu_context.h from modules.
With today's tip tree, asm/mmu_context.h gets included from
linux/mmu_context.h, which is normally the exact pattern one would
expect, but unfortunately, linux/mmu_context.h can be included from
the vhost driver that is a loadable module, now causing this compile
time error with modular configs:
In file included from ../include/linux/mmu_context.h:4:0,
from ../drivers/vhost/vhost.c:18:
../arch/arm/include/asm/mmu_context.h: In function 'finish_arch_post_lock_switch':
../arch/arm/include/asm/mmu_context.h:88:3: error: implicit declaration of function 'preempt_enable_no_resched' [-Werror=implicit-function-declaration]
preempt_enable_no_resched();
Andy already tried to fix the bug by including linux/preempt.h
from asm/mmu_context.h, but that didn't help. Arnd suggested reordering
the header files, which wasn't popular, so let's use this
workaround instead:
The finish_arch_post_lock_switch() definition is now also hidden
inside of #ifdef MODULE, so we don't see anything referencing
preempt_enable_no_resched() from a header file. I've built a
few hundred randconfig kernels with this, and did not see any
new problems.
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-arm-kernel@lists.infradead.org
Fixes: f98db6013c ("sched/core: Add switch_mm_irqs_off() and use it in the scheduler")
Link: http://lkml.kernel.org/r/1463146234-161304-1-git-send-email-arnd@arndb.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
- fix a regression on the clock subsystem while switching to syscon/regmap
due to a stricter check of the register map.
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Merge tag 'at91-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes
Merge "Second AT91 fix PR for 4.6" from Nicolas Ferre:
- fix a regression on the clock subsystem while switching to syscon/regmap
due to a stricter check of the register map.
* tag 'at91-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: dts: at91: sam9x5: Fix the memory range assigned to the PMC
Reworks our stage 2 page table handling to have page table manipulation
macros separate from those of the host systems as the underlying
hardware page tables can be configured to be noticably different in
layout from the stage 1 page tables used by the host.
Adds 16K page size support based on the above.
Adds a generic firmware probing layer for the timer and GIC so that KVM
initializes using the same logic based on both ACPI and FDT.
Finally adds support for hardware updating of the access flag.
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Merge tag 'kvm-arm-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/ARM Changes for Linux v4.7
Reworks our stage 2 page table handling to have page table manipulation
macros separate from those of the host systems as the underlying
hardware page tables can be configured to be noticably different in
layout from the stage 1 page tables used by the host.
Adds 16K page size support based on the above.
Adds a generic firmware probing layer for the timer and GIC so that KVM
initializes using the same logic based on both ACPI and FDT.
Finally adds support for hardware updating of the access flag.
The memory range assigned to the PMC (Power Management Controller) was
not including the PMC_PCR register which are used to control peripheral
clocks.
This was working fine thanks to the page granularity of ioremap(), but
started to fail when we switched to syscon/regmap, because regmap is
making sure that all accesses are falling into the reserved range.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Richard Genoud <richard.genoud@gmail.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Fixes: 863a81c3be ("clk: at91: make use of syscon to share PMC registers in several drivers")
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Commit 94ea9c7a579f ("lib, switch CONFIG_PRINTK_TIME to int") changes
the type of CONFIG_PRINTK_TIME and adapts all existing defconfig files,
while we add two new defconfig files with d0bc3483da ("arm/configs:
Add Aspeed defconfig"), with the old type.
This changes the two new defconfig files to match the other ones.
As a result, we get harmless warnings for the arm-soc defconfig
branch by itself, but everything will work when 4.7-rc1 is out.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The change adds improved support of NXP LPC32xx MIC, SIC1 and SIC2
interrupt controllers.
This is a list of new features in comparison to the legacy driver:
* irq types are taken from device tree settings, no more need to
hardcode them,
* old driver is based on irq_domain_add_legacy, which causes problems
with handling MIC hardware interrupt 0 produced by SIC1,
* there is one driver for MIC, SIC1 and SIC2, no more need to handle
them separately, e.g. have two separate handlers for SIC1 and SIC2,
* the driver does not have any dependencies on hardcoded register
offsets,
* the driver is much simpler for maintenance,
* SPARSE_IRQS option is supported.
Legacy LPC32xx interrupt controller driver was broken since commit
76ba59f836 ("genirq: Add irq_domain-aware core IRQ handler"), which
requires a private interrupt handler, otherwise any SIC1 generated
interrupt (mapped to MIC hwirq 0) breaks the kernel with the message
"unexpected IRQ trap at vector 00".
The change disables compilation of a legacy driver found at
arch/arm/mach-lpc32xx/irq.c, the file will be removed in a separate
commit.
Fixes: 76ba59f836 ("genirq: Add irq_domain-aware core IRQ handler")
Tested-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
v4.7:
1. Add bus nodes for Exynos3250, Exynos4x12, Exynos4210 and Exynos542x.
2. Split out common PPMU (Performance Monitoring Unit) nodes into separate
DTSI. The PPMU provides performance data for devfreq.
3. Add NoCP (Network on Chip Probe) node for Exynos542x. On this SoC, like PPMU
on older designs, provides performance data for devfreq.
4. Enable DFVS (Dynamic Voltage and Frequency Scaling) on boards:
- Exynos3250 Rinato,
- Exynos4412 Odroid-X/X2/U3 and Trats2,
- Exynos5422 Odroid XU3/XU3-Lite/XU4.
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Merge tag 'samsung-dt-devfreq-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/late
Merge "ARM: dts: exynos: Devfreq for v4.7: from Krzysztof Kozłowski:
Topic branch for Device Tree changes adding new generic devfreq driver, for
v4.7:
1. Add bus nodes for Exynos3250, Exynos4x12, Exynos4210 and Exynos542x.
2. Split out common PPMU (Performance Monitoring Unit) nodes into separate
DTSI. The PPMU provides performance data for devfreq.
3. Add NoCP (Network on Chip Probe) node for Exynos542x. On this SoC, like PPMU
on older designs, provides performance data for devfreq.
4. Enable DFVS (Dynamic Voltage and Frequency Scaling) on boards:
- Exynos3250 Rinato,
- Exynos4412 Odroid-X/X2/U3 and Trats2,
- Exynos5422 Odroid XU3/XU3-Lite/XU4.
* tag 'samsung-dt-devfreq-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: dts: exynos: Add support of Bus frequency using VDD_INT for exynos5422-odroidxu3
ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos542x SoC
ARM: dts: exynos: Add NoC Probe dt node for Exynos542x SoC
ARM: dts: exynos: Add support of bus frequency for exynos4412-trats/odroidu3
ARM: dts: exynos: Expand the voltage range of buck1/3 regulator for exynos4412-odroidu3
ARM: dts: exynos: Add support of bus frequency using VDD_INT for exynos3250-rinato
ARM: dts: exynos: Add exynos4412-ppmu-common dtsi to delete duplicate PPMU nodes
ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4210
ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos4x12
ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4x12
ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos3250
ARM: dts: exynos: Add DMC bus frequency for exynos3250-rinato/monk
ARM: dts: exynos: Add DMC bus node for Exynos3250
clk: samsung: exynos542x: Add the clock id for ACLK
dt-bindings: clock: Add the clock id for ACLK clock of Exynos542x SoC
- Add LCDIF and FlexCAN device support for i.MX7D
- New support i.MX7D based Nitrogen7 board from Boundary Devices
- Add display support for vf610-colibri board
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Merge tag 'imx-dt-clkdep-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/late
Merge "The i.MX device tree updates with new clocks for 4.7" from Shawn Guo:
- Add LCDIF and FlexCAN device support for i.MX7D
- New support i.MX7D based Nitrogen7 board from Boundary Devices
- Add display support for vf610-colibri board
* tag 'imx-dt-clkdep-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: vf610-colibri: enable display controller
ARM: dts: vf610: add display nodes
ARM: dts: imx: add Boundary Devices Nitrogen7 board
ARM: dts: imx7d: add flexcan support
ARM: dts: imx7d: add lcdif support
clk: imx: vf610: fix whitespace in vf610-clock.h
clk: imx: vf610: add TCON ipg clock
clk: imx: vf610: fix DCU clock tree
clk: imx: add ckil clock for i.MX7
clk: imx: vf610: add suspend/resume support
clk: imx: vf610: add WKPU unit
clk: imx: vf610: leave DDR clock on
clk: imx: clk-gate2: allow custom gate configuration
clk: imx6sx: Register SAI clocks as shared clocks
The device driver was added in v4.5 by commit dca536c433
("watchdog: add support for Sigma Designs SMP86xx/SMP87xx")
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This platform will use the new generic platdev driver.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Commit fefe0535b7 ("clk: tango4: improve clkgen driver") added
support for USB and SDIO clocks.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Define the CPU temperature sensor, and critical trip point.
Commit 799d71da471c ("add temperature sensor support for tango SoC")
added the device driver.
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Mostly DT patches to enable the new DRM driver on the CHIP, preliminary
support for the A10 and A20, and a support for a new variant of the Olimex
A20-Olinuxino-Lime2 featuring an eMMC
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Merge tag 'sunxi-dt-for-4.7-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/dt
Merge "Allwinner DT changes for 4.7, round 2" from Maxime Ripard:
Mostly DT patches to enable the new DRM driver on the CHIP, preliminary
support for the A10 and A20, and a support for a new variant of the Olimex
A20-Olinuxino-Lime2 featuring an eMMC
* tag 'sunxi-dt-for-4.7-2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
ARM: sun7i: dt: Add pll3 and pll7 clocks
ARM: dts: sunxi: Add a olinuxino-lime2-emmc
ARM: sun4i: dt: Add pll3 and pll7 clocks
ARM: sun5i: chip: Enable the TV Encoder
ARM: sun5i: r8: Add display blocks to the DTSI
ARM: sun5i: a13: Add display and TCON clocks
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Merge tag 'aspeed-for-4.7-dts' of https://github.com/shenki/linux into next/dt
Merge "aspeed devicetree for 4.7" from Joel Stanley:
This device trees for a pair of Aspeed BMC SoCs and the boards that
they sit in.
* tag 'aspeed-for-4.7-dts' of https://github.com/shenki/linux:
arm/dst: Add Aspeed ast2500 device tree
arm/dts: Add Aspeed ast2400 device tree
doc/devicetree: Add Aspeed and Tyan to vendor-prefixes
- a fix for the VInCo platform: reset gpio specification for Ethernet
- addition of True Random Number Generator (TRNG) for all sama5 platforms
- trivial adjustment of TRNG register map size for at91sam9g45 family
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Merge tag 'at91-dt3' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/dt
Merge "Third batch of DT changes for 4.7" from Nicolas Ferre:
- a fix for the VInCo platform: reset gpio specification for Ethernet
- addition of True Random Number Generator (TRNG) for all sama5 platforms
- trivial adjustment of TRNG register map size for at91sam9g45 family
* tag 'at91-dt3' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: dts: at91: sama5d4: add trng node
ARM: dts: at91: sama5d3: add trng node
ARM: dts: at91: sama5d2: add trng node
ARM: dts: at91: at91sam9g45 family: reduce the trng register map size
ARM: dts: at91: VInCo: fix phy reset gpio flag
- Use generic include files
- Make accelerometers open drain on the TVK board
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Merge tag 'ux500-armsoc-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/dt
Merge "ux500 Devicetree updates for v4.7" from Linus Walleij:
- Use generic include files
- Make accelerometers open drain on the TVK board
* tag 'ux500-armsoc-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: dts: ux500: configure the accelerometers open drain
ARM: dts: ux500: use the GIC include header
ARM: dts: ux500: use the GPIO DT header
- Update display clock configuration for imx6q-b850v3 board
- Use watchdog external reset for imx6q-ba16 board
- Update operating points settings for i.MX6UL/SX/DL
- New board support: imx6ul-pico-hobbit and imx6q-marsboard
- Add SAI audio support for imx6ul-14x14-evk board
- Enable USB OTG support for M53EVK board
- A couple of fixes on DTC warnings
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Merge tag 'imx-dt-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt
Merge "i.MX device tree updates for 4.7, take 2: from Shawn Guo:
The i.MX device tree updates for 4.7, take 2:
- Update display clock configuration for imx6q-b850v3 board
- Use watchdog external reset for imx6q-ba16 board
- Update operating points settings for i.MX6UL/SX/DL
- New board support: imx6ul-pico-hobbit and imx6q-marsboard
- Add SAI audio support for imx6ul-14x14-evk board
- Enable USB OTG support for M53EVK board
- A couple of fixes on DTC warnings
* tag 'imx-dt-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: mx5: dts: Enable USB OTG on M53EVK
ARM: dts: imx6ul-14x14-evk: Add audio support
ARM: dts: imx6qdl: Remove unneeded unit-addresses
ARM: dts: imx6: apalis: parallel lcd display support on ixora
ARM: dts: imx6sx-sdb: Add 198MHz operational point
ARM: dts: imx28-m28: Remove unneeded partition nodes
ARM: dts: imx6ul-pico-hobbit: Add initial support
ARM: dts: imx6: Do not hardcode the CLKO clock
ARM: dts: imx6: Add dts for Embest MarS Board
ARM: dts: imx6: fix dtc warnings for ipu endpoints
ARM: dts: imx6dl: Fix the VDD_ARM_CAP voltage for 396MHz operation
ARM: dts: imx6sx: Add 198MHz operating point
ARM: dts: imx6ul: Fix operating points
ARM: dts: imx6q-ba16: use wdog external reset
ARM: dts: imx: b450/b650v3: Move ldb_di clk assignment
ARM: dts: imx6q-b850v3: Update display clock source
ARM: dts: imx6q-b850v3: Remove ldb panel
The usual bunch of changes, mostly:
* Addition of the SPDIF support
* Addition of the pre-requisites for the display support
* New boards: Difrence DIT4350, colorfly e708 q1, Dserve DSRV9703C,
Polaroid MID2809PXE4, Orange Pi PC, Orange Pi 2
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Merge tag 'sunxi-dt-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/dt
Merge "Allwinner DT additions for 4.7" from Maxime Ripard:
The usual bunch of changes, mostly:
* Addition of the SPDIF support
* Addition of the pre-requisites for the display support
* New boards: Difrence DIT4350, colorfly e708 q1, Dserve DSRV9703C,
Polaroid MID2809PXE4, Orange Pi PC, Orange Pi 2
* tag 'sunxi-dt-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: (38 commits)
ARM: dts: sun7i: Enable S/PDIF on the Cubietruck
ARM: sun5i: Add DRAM gates
ARM: sun5i: Add TV encoder gate to the DTSI
ARM: sun5i: dt: Add pll3 and pll7 clocks
ARM: dts: sun8i: Add dts file for the Orange Pi One SBC
ARM: sun7i: dt: Enable dram gate 5 (tve0 clock) for simplefb TV output
ARM: sun4i: dt: Enable dram gate 5 (tve0 clock) for simplefb TV output
ARM: dts: sun5i-a13-olinuxino-micro: enable USB DRC
ARM: dts: sun8i: Base Orange Pi Plus dts on the Orange Pi 2 dts
ARM: dts: sun8i: Orangepi plus gpio keys fixes and improvements
ARM: dts: sun8i: Add dts for Orange Pi 2 SBC
ARM: dts: sun8i: Add Orange Pi PC support
ARM: dts: sun8i: Fix pio nodes Orangepi Plus dts
ARM: dts: sun7i: Add SPDIF to the Itead Ibox
ARM: dts: sun4i: Add SPDIF to the Mele A1000
ARM: dts: sun7i: Add the SPDIF block to the A20
ARM: dts: sun4i: Add the SPDIF block to the A10
ARM: dts: sun7i: Add the SPDIF clk to the A20
ARM: dts: sun4i: Add the SPDIF clk to the A10
ARM: dts: sun7i: Add SPDIF TX pin to the A20
...
adding support for SPI0 and some low
priority fixes for ethernet and interrupt
controller.
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Merge tag 'davinci-for-v4.7/dt-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/dt
Merge "DaVinci DT updates for v4.7 (part 2)" from Sekhar Nori:
Second set of DT updates for DaVinci
adding support for SPI0 and some low
priority fixes for ethernet and interrupt
controller.
* tag 'davinci-for-v4.7/dt-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: dts: da850: There are 101 interrupts.
ARM: dts: da850: disable mdio and eth0 in da850.dtsi
ARM: davinci: da8xx-dt: Add spi0 lookup for clock matching
ARM: dts: da850: add spi0 to device tree
to the binding-change that made it into 4.6, adds rk3288 i2c controller
nodes and moves the rk3288 thermal data into the soc dtsi, as there
really is no need to have that separate file.
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Merge tag 'v4.7-rockchip-dts32-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt
Merge "Rockchip dts32 updates for v4.7 - part2" from Heiko Stübner:
This adds the rk3288-miqi as new board, adapts the edp-phy settings
to the binding-change that made it into 4.6, adds rk3288 i2c controller
nodes and moves the rk3288 thermal data into the soc dtsi, as there
really is no need to have that separate file.
* tag 'v4.7-rockchip-dts32-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: dts: rockchip: move the rk3288 thermal data into rk3288.dtsi
ARM: dts: rockchip: add MiQi board from mqmaker
dt-bindings: add vendor-prefix for mqmaker
ARM: dts: rockchip: move rk3288 edp phy under the GRF
ARM: dts: rockchip: make rk3288-grf a simple-mfd
ARM: dts: rockchip: add i2c nodes for RK3228 SoCs
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Merge tag 'aspeed-for-4.7-defconfig' of https://github.com/shenki/linux into next/defconfig
Merge "aspeed defconfig for 4.7" from Joel Stanley:
This adds configurations used for testing Aspeed BMC SoCs, as well as adding
the v5 part to the multi defconfig.
* tag 'aspeed-for-4.7-defconfig' of https://github.com/shenki/linux:
arm/configs: Add Aspeed defconfig
arm/configs/multi_v5: Add Aspeed ast2400
The Ux500 is using buffered IIO as the sensors support
IRQs. The BH1780 ambient light sensor was added to IIO,
so disable the old misc driver and activate the driver
in IIO.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Ux500 was enabling the staging drivers due to the RMI4
touchscreen driver, this is now properly upstream, so drop
this and the dead symbol for the old RMI4 hack from
the defconfig.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Merge "i.MX defconfig updates for 4.7" from Shawn Guo:
- Update multi_v5_defconfig for i.MX21/27 and systemd support
- Update imx_v6_v7_defconfig to support devices found on various i.MX6
board: FT5x06 and TSC2004 touch, I2C GPIO, MICREL PHY and M41T80 RTC
* tag 'imx-defconfig-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx_v6_v7_defconfig: add CONFIG_MICREL_PHY
ARM: imx_v6_v7_defconfig: add CONFIG_I2C_GPIO
ARM: multi_v5_defconfig: Enable recommended options for systemd
ARM: multi_v5_defconfig: Enable support for MX21/MX27
ARM: imx_v6_v7_defconfig: add CONFIG_RTC_DRV_M41T80
ARM: imx_v6_v7_defconfig: add CONFIG_I2C_MUX_GPIO
ARM: imx_v6_v7_defconfig: add FT5x06 and TSC2004 touch support
Merge "ARM: tegra: Default configuration updates for v4.7-rc1" from Thierry Reding:
Enable the XUSB pad controller and XUSB controller drivers on the Tegra
and multi-v7 default configurations.
* tag 'tegra-for-4.7-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
ARM: multi_v7: Enable Tegra XUSB controller in defconfig
ARM: tegra: Enable XUSB controller in defconfig
based filesystems, SPI NOR and GPIO sysfs
entries.
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Merge tag 'davinci-for-v4.7/defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/defconfig
Merge "DaVinci defconfig updates for v4.7" from Sekhar Nori:
Some defconfig updates to support systemd
based filesystems, SPI NOR and GPIO sysfs
entries.
* tag 'davinci-for-v4.7/defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci_all_defconfig: enable SPI and NOR as modules
ARM: davinci_all_defconfig: support systemd
ARM: davinci_all_defconfig: enable GPIO_SYSFS
- error in the documentation led to wrongly add a new NAND Flash Controller
type. Switch back to the previous compatible one.
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Merge tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes
Merge "at91: fixes for 4.6 #1" from Nicolas Ferre:
Here is a late fix for AT91. Sorry to have figure it out so late in the
development cycle but we had to confirm it was an error with the documentation
of two products.
So, as the compatibility string is in since 4.6-rc1 and that the previous one
works okay, it's a good opportunity to switch back to the one that works without
introducing a intermediary bug.
The revert on driver code and the removal of the useless additional
compatibility string will be queued for 4.7 through NAND/MTD.
* tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: dts: at91: sama5d2: use "atmel,sama5d3-nfc" compatible for nfc
CONFIG_FHANDLE is listed as a mandatory kernel option for systemd. So
explicitly enable it to allow easy use of systemd userspace.
Reported-by: Marek Vasut <marex@denx.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
An error in documentation of the NAND Flash Controller (NFC) led to choose
another compatibility string for sama5d2 with an impact on the NAND flash
ready/busy information. It was producing the error message:
atmel_nand 80000000.nand: Time out to wait for interrupt: 0x08000000
and had an impact on performance.
So, switch back to the classical "atmel,sama5d3-nfc" compatibility string for
this SoC which gives the proper ready/busy bit information. The NAND flash
driver will be updated to remove the support for this different
implementation.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Romain Izard <romain.izard.pro@gmail.com>
[nicolas.ferre@atmel.com: change commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
The ARMv8.1 architecture extensions introduce support for hardware
updates of the access and dirty information in page table entries. With
VTCR_EL2.HA enabled (bit 21), when the CPU accesses an IPA with the
PTE_AF bit cleared in the stage 2 page table, instead of raising an
Access Flag fault to EL2 the CPU sets the actual page table entry bit
(10). To ensure that kernel modifications to the page table do not
inadvertently revert a bit set by hardware updates, certain Stage 2
software pte/pmd operations must be performed atomically.
The main user of the AF bit is the kvm_age_hva() mechanism. The
kvm_age_hva_handler() function performs a "test and clear young" action
on the pte/pmd. This needs to be atomic in respect of automatic hardware
updates of the AF bit. Since the AF bit is in the same position for both
Stage 1 and Stage 2, the patch reuses the existing
ptep_test_and_clear_young() functionality if
__HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG is defined. Otherwise, the
existing pte_young/pte_mkold mechanism is preserved.
The kvm_set_s2pte_readonly() (and the corresponding pmd equivalent) have
to perform atomic modifications in order to avoid a race with updates of
the AF bit. The arm64 implementation has been re-written using
exclusives.
Currently, kvm_set_s2pte_writable() (and pmd equivalent) take a pointer
argument and modify the pte/pmd in place. However, these functions are
only used on local variables rather than actual page table entries, so
it makes more sense to follow the pte_mkwrite() approach for stage 1
attributes. The change to kvm_s2pte_mkwrite() makes it clear that these
functions do not modify the actual page table entries.
The (pte|pmd)_mkyoung() uses on Stage 2 entries (setting the AF bit
explicitly) do not need to be modified since hardware updates of the
dirty status are not supported by KVM, so there is no possibility of
losing such information.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
In netdevice.h we removed the structure in net-next that is being
changes in 'net'. In macsec.c and rtnetlink.c we have overlaps
between fixes in 'net' and the u64 attribute changes in 'net-next'.
The mlx5 conflicts have to do with vxlan support dependencies.
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that all drivers support the same set of functions and the same
setup code, drop every model-specific DSA switch driver and replace them
with a common mv88e6xxx driver.
This merges the info tables into one, removes the function exports, the
model-specific files, and update the defconfigs.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
compatible string if no exact match based on the IO address is found.
This leaves out the need to patch auxdata for each driver when adding
new SoCs. And it also reprotedly fixes the issue of passing auxdata
to a child if the parent instantiates the child from DT as discussed
in the "[PATCH] of/platform: Allow secondary compatible match in
of_dev_lookup" mailing list thread.
As a minimal use case, let's also convert omap pinctrl auxdatato
use a generic match.
There is no need to get this in to the v4.6-rc cycle and it can wait
for v4.7 merge window. Note that these changes have now been sitting
in Linux next for about two weeks so far as I wanted to make sure no
new issues are popping up.
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Merge tag 'omap-for-v4.7/auxdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical
Merge "non urgent auxdata fix for v4.7 merge window" from Tony Lindgren:
Device tree auxdata handling fix that allows a match based on the
compatible string if no exact match based on the IO address is found.
This leaves out the need to patch auxdata for each driver when adding
new SoCs. And it also reprotedly fixes the issue of passing auxdata
to a child if the parent instantiates the child from DT as discussed
in the "[PATCH] of/platform: Allow secondary compatible match in
of_dev_lookup" mailing list thread.
As a minimal use case, let's also convert omap pinctrl auxdatato
use a generic match.
There is no need to get this in to the v4.6-rc cycle and it can wait
for v4.7 merge window. Note that these changes have now been sitting
in Linux next for about two weeks so far as I wanted to make sure no
new issues are popping up.
* tag 'omap-for-v4.7/auxdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Simplify auxdata by using the generic match
of/platform: Allow secondary compatible match in of_dev_lookup
v4.7 merge window. These are not considered urgent fixes enough
for the v4.6-rc cycle, but we need them in v4.7 in order to drop
the last remaining board-*.c files for omap3 for v4.8 merge window.
On Nokia N900, we need to pass the MMC slot names for the legacy
user space to work. Let's do that using auxdata as the driver is
setting up things already with the pdata for legacy booting. Then
we can later on discuss if we may want to have some generic binding
describing where the MMC slots are on the device.
N900 also has had the ir-rx51 device driver unusable with multiarch
for a long time. Let's pass the dmtimer data in pdata for the driver
to get it going again. Then once things are working, we can eventually
change the driver to use just hrtimer and PWM framework. The driver
changes will be queued separately.
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Merge tag 'omap-for-v4.7/legacy-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical
Merge "omap legacy boot vs dt boot fixes for v4.7 merge window"
from Tony Lindgren:
Legacy booting vs device tree booting fixes for omaps for
v4.7 merge window. These are not considered urgent fixes enough
for the v4.6-rc cycle, but we need them in v4.7 in order to drop
the last remaining board-*.c files for omap3 for v4.8 merge window.
On Nokia N900, we need to pass the MMC slot names for the legacy
user space to work. Let's do that using auxdata as the driver is
setting up things already with the pdata for legacy booting. Then
we can later on discuss if we may want to have some generic binding
describing where the MMC slots are on the device.
N900 also has had the ir-rx51 device driver unusable with multiarch
for a long time. Let's pass the dmtimer data in pdata for the driver
to get it going again. Then once things are working, we can eventually
change the driver to use just hrtimer and PWM framework. The driver
changes will be queued separately.
* tag 'omap-for-v4.7/legacy-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: n900 needs MMC slot names for legacy user space
ARM: OMAP2+: Add more functions to pwm pdata for ir-rx51
1. Fix s5p-mfc driver probe on Exynos542x Peach boards (need to provide MFC
memory banks). On these boards this was broken for long time but
apparently no one enabled this driver till now.
2. Fix creation of debugfs entries for one regulator on Exynos4210
Trats board.
3. Fix probing of max8997 MFD driver (and its children) because
of missing interrupt. Actually the current version of the driver probes
(just without interrupts) but after switching to regmap and regmap-irq,
the interrupt will be mandatory.
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Merge tag 'samsung-fixes-non-critical-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/fixes-non-critical
Merge "Samsung DTS non-critical fixes for v4.7":
1. Fix s5p-mfc driver probe on Exynos542x Peach boards (need to provide MFC
memory banks). On these boards this was broken for long time but
apparently no one enabled this driver till now.
2. Fix creation of debugfs entries for one regulator on Exynos4210
Trats board.
3. Fix probing of max8997 MFD driver (and its children) because
of missing interrupt. Actually the current version of the driver probes
(just without interrupts) but after switching to regmap and regmap-irq,
the interrupt will be mandatory.
* tag 'samsung-fixes-non-critical-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
ARM: dts: exynos: Fix regulator name to avoid forbidden character on exynos4210-trats
ARM: dts: exynos: Add MFC memory banks for Peach boards
ARM: EXYNOS: Properly skip unitialized parent clock in power domain on
- add support for pmic wrapper mt6323
- add support for SoC mt2701
- enable gpt6 arch timer on mt7623
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Merge tag 'v4.6-next-soc' of https://github.com/mbgg/linux-mediatek into next/drivers
Merge "ARM: mediatek soc updates for v4.7" from Matthias Brugger:
- re-organize pmic wrapper code for easier and cleaner addiont of new SoCs and pmic wrappers
- add support for pmic wrapper mt6323
- add support for SoC mt2701
- enable gpt6 arch timer on mt7623
* tag 'v4.6-next-soc' of https://github.com/mbgg/linux-mediatek:
ARM: mediatek: enable gpt6 on boot up to make arch timer work on mt7623
soc: mediatek: PMIC wrap: add MT2701/7623 support
soc: mediatek: PMIC wrap: add mt6323 slave support
soc: mediatek: PMIC wrap: add a slave specific struct
soc: mediatek: PMIC wrap: remove pwrap_is_mt8135() and pwrap_is_mt8173()
soc: mediatek: PMIC wrap: move wdt_src into the pmic_wrapper_type struct
soc: mediatek: PMIC wrap: SPI_WRITE needs a different bitmask for MT2701/7623
soc: mediatek: PMIC wrap: WRAP_INT_EN needs a different bitmask for MT2701/7623
soc: mediatek: PMIC wrap: split SoC specific init into callback
soc: mediatek: PMIC wrap: add wrapper callbacks for init_reg_clock
soc: mediatek: PMIC wrap: don't duplicate the wrapper data
These changes add support for the XUSB controller on Tegra124. It is an
XHCI compatible controller that replaces the existing EHCI controllers.
Support is enabled on Venice2, Jetson TK1 and Nyan-based Chromebooks.
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Merge tag 'tegra-for-4.7-xusb-no-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/late
Merge "ARM: tegra: Enable the XUSB controller" from Thierry Reding:
These changes add support for the XUSB controller on Tegra124. It is an
XHCI compatible controller that replaces the existing EHCI controllers.
Support is enabled on Venice2, Jetson TK1 and Nyan-based Chromebooks.
* tag 'tegra-for-4.7-xusb-no-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
ARM: tegra: Enable XUSB on Nyan
ARM: tegra: Enable XUSB on Jetson TK1
ARM: tegra: Enable XUSB on Venice2
ARM: tegra: Add Tegra124 XUSB controller
ARM: tegra: Move Tegra124 to the new XUSB pad controller binding
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Merge tag 'aspeed-for-4.7-arch' of https://github.com/shenki/linux into next/soc
Merge "aspeed arch tag for 4.7" from Joel Stanley <joel@jms.id.au>:
This is the initial pull request for the Aspeed BMC SoCs.
I put 4.7 in the subject for this and the subsequent requests but if it's a bit
late in the cycle then I understand.
Following review I got rid of the board file by pushing the functionality out
to a watchdog and clock driver, so it's just the Kconfig bits. I've also added
myself to maintainers for the Aspeed arch and drivers as I intend on looking
after them.
* tag 'aspeed-for-4.7-arch' of https://github.com/shenki/linux:
arm: Add Aspeed machine
- Allow TWD to be used on UP kernel, as the PREEMPT-RT and cyclictest
shows that TWD has a slightly better performance than i.MX timer.
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Merge tag 'imx-soc-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc
Merge "The i.MX SoC updates for 4.7" from Shawn Guo":
- Allow TWD to be used on UP kernel, as the PREEMPT-RT and cyclictest
shows that TWD has a slightly better performance than i.MX timer.
* tag 'imx-soc-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx: always use TWD on IMX6Q
- Clock framework cleanup with the "Remove CLK_IS_ROOT" series
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Merge tag 'mvebu-soc-4.7-1' of git://git.infradead.org/linux-mvebu into next/soc
Merge "mvebu soc for 4.7" from Gregory CLEMENT:
- Clock framework cleanup with the "Remove CLK_IS_ROOT" series
* tag 'mvebu-soc-4.7-1' of git://git.infradead.org/linux-mvebu:
ARM: dove: Remove CLK_IS_ROOT
ARM: orion5x: Remove CLK_IS_ROOT
ARM: mv78xx0: Remove CLK_IS_ROOT
clocks to DaVinci clock framwork and are
required to support USB PHY clock setting from
USB PHY driver.
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Merge tag 'davinci-for-v4.7/soc-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/soc
Merge "DaVinci SoC updates for v4.7 (part 2)" from Sekhar Nori:
These patches provide ability to add non-PSC
clocks to DaVinci clock framwork and are
required to support USB PHY clock setting from
USB PHY driver.
* tag 'davinci-for-v4.7/soc-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: da850: use clk->set_parent for async3
ARM: davinci: Move clock init after ioremap.
This includes a few nonfunctional clean-ups for NXP LPC32xx:
* removed leftover from restart code migration to a watchdog driver
* removed dead code leftovers from migration to CCF driver
* fix double const qualifier
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Merge tag 'lpc32xx-soc-4.7' of git://github.com/vzapolskiy/linux-lpc32xx into next/soc
Merge "NXP LPC32xx mach updates for v4.7" from Vladimir Zapolskiy:
This includes a few nonfunctional clean-ups for NXP LPC32xx:
* removed leftover from restart code migration to a watchdog driver
* removed dead code leftovers from migration to CCF driver
* fix double const qualifier
* tag 'lpc32xx-soc-4.7' of git://github.com/vzapolskiy/linux-lpc32xx:
ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup
ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers
ARM: lpc32xx: remove reboot header file
As a set of driver-provided callbacks and static data, there is no
compelling reason for struct iommu_ops to be mutable in core code, so
enforce const-ness throughout.
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This adds the Aspeed ast2400 BMC SoC to the build.
The SoC has six UARTs so we need to enable the appropriate options for
SERIAL_8250
Signed-off-by: Joel Stanley <joel@jms.id.au>
This adds a common device tree for all fifth generation Aspeed systems,
and a board specific device tree for the ast2500 evaluation board.
Signed-off-by: Joel Stanley <joel@jms.id.au>
A common device tree for all forth gen/ast2400 systems and a board
specific dts for the Palmetto OpenPower developemnt machine which was
used for testing.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Aspeed devices are a common Baseboard Management Controller (BMC)
system on chip containing an ARM9 or ARM11 core, off-chip DDR RAM and
support for a large number of peripherals.
This patch adds basic support for the ast2400 and ast2500 machines,
capable of booting to a prompt in QEMU (-M palmetto-bmc), on an
Palmetto OpenPower development machine, and on the ast2500 EVB.
Signed-off-by: Joel Stanley <joel@jms.id.au>
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Merge tag 'v4.6-rc7' into drm-next
Merge this back as we've built up a fair few conflicts, and I have
some newer trees to pull in.
Enable pll3 and pll7 clocks that are needed by display clocks.
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
There are 3 kinds of OLinuXino Lime2 boards.
One without any on board storage, one with NAND storage and one with
eMMC storage. This patch adds the eMMC variant of boards.
eMMC storage is different from a regular SD card in that it is soldered
on the board and cannot be changed. Additionally, it shares pins with
the NAND module and with the second SPI port.
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
[Maxime: Removed the change log from the commit log]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Pull ARM fixes from Russell King:
"These are a number of updates to fix a few problems found in the ARM
nommu code over the last couple of years, caused mostly by changes on
the mmu side"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8573/1: domain: move {set,get}_domain under config guard
ARM: 8572/1: nommu: change memory reserve for the vectors
ARM: 8571/1: nommu: fix PMSAv7 setup
Pull libata fixes from Tejun Heo:
"An ahci driver addition and updates to ahci port enable handling for
some platform devices"
* 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: add AMD Seattle platform driver
ARM: dts: apq8064: add ahci ports-implemented mask
ata: ahci-platform: Add ports-implemented DT bindings.
libahci: save port map for forced port map
The usage of slash character causes failure when creating regulator
debugfs entry.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
[k.kozlowski: Write commit message]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
The MFC nodes with the memory regions reserved for memory allocations
are missing in the Exynos5420 Peach Pit and Exynos5800 Peach Pi DTS.
This causes the s5p-mfc driver probe to fail with the following error:
[ 4.140647] s5p_mfc_alloc_memdevs:1072: Failed to declare coherent memory for MFC device
[ 4.216163] s5p-mfc: probe of 11000000.codec failed with error -12
Add the missing nodes so the driver probes and the {en,de}coder video
nodes are registered correctly:
[ 4.096277] s5p-mfc 11000000.codec: decoder registered as /dev/video4
[ 4.102282] s5p-mfc 11000000.codec: encoder registered as /dev/video5
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Enable CGROUPS support, so we can boot userspace that uses systemd on
top of kernel configured using this defconfig. The systemd userspace
depends on cgroups and without them, it dies in mysterious ways.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Add node to support SAMA5D4 hardware random number generator.
Signed-off-by: Mike Williams <mike@mikebwilliams.com>
[nicolas.ferre@atmel.com: reduce the register map size]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Add node to support SAMA5D3 hardware random number generator.
Signed-off-by: Mike Williams <mike@mikebwilliams.com>
[nicolas.ferre@atmel.com: reduce the register map size]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Add node to support SAMA5D2 hardware random number generator.
Signed-off-by: Mike Williams <mike@mikebwilliams.com>
[nicolas.ferre@atmel.com: reduce the register map size]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Merge fixes from Andrew Morton:
"14 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
byteswap: try to avoid __builtin_constant_p gcc bug
lib/stackdepot: avoid to return 0 handle
mm: fix kcompactd hang during memory offlining
modpost: fix module autoloading for OF devices with generic compatible property
proc: prevent accessing /proc/<PID>/environ until it's ready
mm/zswap: provide unique zpool name
mm: thp: kvm: fix memory corruption in KVM with THP enabled
MAINTAINERS: fix Rajendra Nayak's address
mm, cma: prevent nr_isolated_* counters from going negative
mm: update min_free_kbytes from khugepaged after core initialization
huge pagecache: mmap_sem is unlocked when truncation splits pmd
rapidio/mport_cdev: fix uapi type definitions
mm: memcontrol: let v2 cgroups follow changes in system swappiness
mm: thp: correct split_huge_pages file permission
After the THP refcounting change, obtaining a compound pages from
get_user_pages() no longer allows us to assume the entire compound page
is immediately mappable from a secondary MMU.
A secondary MMU doesn't want to call get_user_pages() more than once for
each compound page, in order to know if it can map the whole compound
page. So a secondary MMU needs to know from a single get_user_pages()
invocation when it can map immediately the entire compound page to avoid
a flood of unnecessary secondary MMU faults and spurious
atomic_inc()/atomic_dec() (pages don't have to be pinned by MMU notifier
users).
Ideally instead of the page->_mapcount < 1 check, get_user_pages()
should return the granularity of the "page" mapping in the "mm" passed
to get_user_pages(). However it's non trivial change to pass the "pmd"
status belonging to the "mm" walked by get_user_pages up the stack (up
to the caller of get_user_pages). So the fix just checks if there is
not a single pte mapping on the page returned by get_user_pages, and in
turn if the caller can assume that the whole compound page is mapped in
the current "mm" (in a pmd_trans_huge()). In such case the entire
compound page is safe to map into the secondary MMU without additional
get_user_pages() calls on the surrounding tail/head pages. In addition
of being faster, not having to run other get_user_pages() calls also
reduces the memory footprint of the secondary MMU fault in case the pmd
split happened as result of memory pressure.
Without this fix after a MADV_DONTNEED (like invoked by QEMU during
postcopy live migration or balloning) or after generic swapping (with a
failure in split_huge_page() that would only result in pmd splitting and
not a physical page split), KVM would map the whole compound page into
the shadow pagetables, despite regular faults or userfaults (like
UFFDIO_COPY) may map regular pages into the primary MMU as result of the
pte faults, leading to the guest mode and userland mode going out of
sync and not working on the same memory at all times.
Any other secondary MMU notifier manager (KVM is just one of the many
MMU notifier users) will need the same information if it doesn't want to
run a flood of get_user_pages_fast and it can support multiple
granularity in the secondary MMU mappings, so I think it is justified to
be exposed not just to KVM.
The other option would be to move transparent_hugepage_adjust to
mm/huge_memory.c but that currently has all kind of KVM data structures
in it, so it's definitely not a cut-and-paste work, so I couldn't do a
fix as cleaner as this one for 4.6.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: "Li, Liang Z" <liang.z.li@intel.com>
Cc: Amit Shah <amit.shah@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
are for the OMAP platforms, quoting Tony Lindgren:
Fixes for omaps for v4.6-rc cycle. All dts fixes, mostly
affecting voltages and pinctrl for various device drivers:
- Regulator minimum voltage fixes for omap5
- ISP syscon register offset fix for omap3
- Fix regulator initial modes for n900
- Fix omap5 pinctrl wkup instance size
The rest are all for different platforms:
- Allwinner:
Remove incorrect constraints from a dcdc1 regulator
- Alltera SoCFPGA:
Fix compilation in thumb2 mode
- Samsung exynos:
Fix a potential oops in the pm-domain error handling
- Davinci:
Avoid a link error if NVMEM is disabled
- Renesas:
Do not mark an external uart clock as disabled, to allow
probing the uarts
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Here are a couple last-minute fixes for ARM SoCs. Most of them are
for the OMAP platforms, the rest are all for different platforms.
OMAP:
All dts fixes, mostly affecting voltages and pinctrl for various
device drivers:
- Regulator minimum voltage fixes for omap5
- ISP syscon register offset fix for omap3
- Fix regulator initial modes for n900
- Fix omap5 pinctrl wkup instance size
Allwinner:
Remove incorrect constraints from a dcdc1 regulator
Alltera SoCFPGA:
Fix compilation in thumb2 mode
Samsung exynos:
Fix a potential oops in the pm-domain error handling
Davinci:
Avoid a link error if NVMEM is disabled
Renesas:
Do not mark an external uart clock as disabled, to allow probing
the uarts"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: davinci: only use NVMEM when available
ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel
ARM: dts: omap5: fix range of permitted wakeup pinmux registers
ARM: dts: omap3-n900: Specify peripherals LDO regulators initial mode
ARM: dts: omap3: Fix ISP syscon register offset
ARM: dts: omap5-cm-t54: fix ldo1_reg and ldo4_reg ranges
ARM: dts: omap5-board-common: fix ldo1_reg and ldo4_reg ranges
arm64: dts: r8a7795: Don't disable referenced optional scif clock
ARM: EXYNOS: Properly skip unitialized parent clock in power domain on
ARM: dts: sun8i-q8-common: Do not set constraints on dc1sw regulator
Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This outer cache allows to control active ways independently for
each CPU, but currently nothing is done for secondary CPUs. In
other words, all the ways are locked for secondary CPUs by default.
This commit fixes it to fully bring out the performance of this
outer cache.
There would be two possible ways to achieve this:
[1] Each CPU initializes active ways for itself. This can be done
via the SSCLPDAWCR register. This is a banked register, so each
CPU sees a different instance of the register for its own.
[2] The master CPU initializes active ways for all the CPUs. This
is available via SSCDAWCARMR(N) registers, where all instances
of SSCLPDAWCR are mirrored. They are mapped at the address
SSCDAWCARMR + 4 * N, where N is the CPU number.
The outer cache frame work does not support a per-CPU init callback.
So this commit adopts [2]; the master CPU iterates over possible CPUs
setting up SSCDAWCARMR(N) registers.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Recursive undefined instrcution falut is seen with R-class taking an
exception. The reson for that is __show_regs() tries to get domain
information, but domains is not available on !MMU cores, like R/M
class.
Fix it by puting {set,get}_domain functions under CONFIG_CPU_CP15_MMU
guard and providing stubs for the case where domains is not supported.
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commit 19accfd3 (ARM: move vector stubs) moved the vector stubs in an
additional page above the base vector one. This change wasn't taken into
account by the nommu memreserve.
This patch ensures that the kernel won't overwrite any vector stub on
nommu.
[changed the MPU side too]
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commit 1c2f87c (ARM: 8025/1: Get rid of meminfo) broke the support for
MPU on ARMv7-R. This patch adapts the code inside CONFIG_ARM_MPU to use
memblocks appropriately.
MPU initialisation only uses the first memory region, and removes all
subsequent ones. Because looping over all regions that need removal is
inefficient, and memblock_remove already handles memory ranges, we can
flatten the 'for_each_memblock' part.
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add ability to override power management bits of 310 controllers
(dynamic clock gating and standby mode) through OF entries. As the
saved register is only applied when working on a supported controller,
it is safe to save the settings.
In order to maintain existing behavior, if the settings are not found
in the DT, the corresponding feature will be enabled.
Signed-off-by: Brad Mouring <brad.mouring@ni.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Once entering machine_halt() and machine_restart(), local_irq_disable()
is called, and local irq is kept disabled, so the local_irq_disable()
at the end of these two functions are not necessary, remove it.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Enable pll3 and pll7 clocks that are needed to drive display clocks.
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The CHIP has a composite output available muxed with the microphone in the
micro-jack plug.
Enable the composite output in its DTS.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The TCON, tv-encoder and display engine backends and frontends are combined
to create our display pipeline.
Add them to the R8 DTSI. It's supposed to be perfectly compatible with the
A10s and A13, but since we haven't tested it on them yet, it's safer to
just enable it on the R8. Eventually, it should be moved to sun5i.dtsi
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Enable the display and TCON (channel 0 and channel 1) clocks that are going
to be needed to drive the display engine, tcon and TV encoders.
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Configure the two accelerometers sharing GPIO line 82 as:
- Open drain so that they can share the same interrupt line.
Configure the corresponding interrupt pin:
- Trigger on the falling edge since open drain implies that we
do not actively drive the line high, but we will actively drive
it low to generate interrupts and then it moves from high to low
i.e. a falling edge.
- Pulled up so the line will be biased to high unless an IRQ
is active on any device on the line, and thus it goes high
again after the interrupt is deasserted.
Cc: linux-iio@vger.kernel.org
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
