Backend driver to dynamically set voltage and frequency on
IBM POWER non-virtualized platforms. Power management SPRs
are used to set the required PState.
This driver works in conjunction with cpufreq governors
like 'ondemand' to provide a demand based frequency and
voltage setting on IBM POWER non-virtualized platforms.
PState table is obtained from OPAL v3 firmware through device
tree.
powernv_cpufreq back-end driver would parse the relevant device-tree
nodes and initialise the cpufreq subsystem on powernv platform.
The code was originally written by svaidy@linux.vnet.ibm.com. Over
time it was modified to accomodate bug-fixes as well as updates to the
the cpu-freq core. Relevant portions of the change logs corresponding
to those modifications are noted below:
* The policy->cpus needs to be populated in a hotplug-invariant
manner instead of using cpu_sibling_mask() which varies with
cpu-hotplug. This is because the cpufreq core code copies this
content into policy->related_cpus mask which should not vary on
cpu-hotplug. [Authored by srivatsa.bhat@linux.vnet.ibm.com]
* Create a helper routine that can return the cpu-frequency for the
corresponding pstate_id. Also, cache the values of the pstate_max,
pstate_min and pstate_nominal and nr_pstates in a static structure
so that they can be reused in the future to perform any
validations. [Authored by ego@linux.vnet.ibm.com]
* Create a driver attribute named cpuinfo_nominal_freq which creates
a sysfs read-only file named cpuinfo_nominal_freq. Export the
frequency corresponding to the nominal_pstate through this
interface.
Nominal frequency is the highest non-turbo frequency for the
platform. This is generally used for setting governor policies
from user space for optimal energy efficiency. [Authored by
ego@linux.vnet.ibm.com]
* Implement a powernv_cpufreq_get(unsigned int cpu) method which will
return the current operating frequency. Export this via the sysfs
interface cpuinfo_cur_freq by setting powernv_cpufreq_driver.get to
powernv_cpufreq_get(). [Authored by ego@linux.vnet.ibm.com]
[Change log updated by ego@linux.vnet.ibm.com]
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Earlier commit:
commit 652ed95d5f
Author: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu Jan 9 20:38:43 2014 +0530
cpufreq: introduce cpufreq_generic_get() routine
did some changes to driver and by mistake made cpuclk as a 'static' local
variable, which wasn't actually required. Fix it.
Fixes: 652ed95d5f (cpufreq: introduce cpufreq_generic_get() routine)
Reported-by: Alexandre Oliva <lxoliva@fsfla.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Earlier commit:
commit 652ed95d5f
Author: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu Jan 9 20:38:43 2014 +0530
cpufreq: introduce cpufreq_generic_get() routine
did some changes to driver and by mistake made cpuclk as a 'static' local
variable, which wasn't actually required. Fix it.
Fixes: 652ed95d5f (cpufreq: introduce cpufreq_generic_get() routine)
Reported-by: Alexandre Oliva <lxoliva@fsfla.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Need use 'clk' instead of 'mclk', which is the original removed local
variable.
The related original commit:
"652ed95 cpufreq: introduce cpufreq_generic_get() routine"
The related error with allmodconfig for unicore32:
CC drivers/cpufreq/unicore2-cpufreq.o
drivers/cpufreq/unicore2-cpufreq.c: In function ‘ucv2_target’:
drivers/cpufreq/unicore2-cpufreq.c:48: error: ‘struct cpufreq_policy’ has no member named ‘mclk’
make[2]: *** [drivers/cpufreq/unicore2-cpufreq.o] Error 1
make[1]: *** [drivers/cpufreq] Error 2
make: *** [drivers] Error 2
Fixes: 652ed95d5f (cpufreq: introduce cpufreq_generic_get() routine)
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The current exynos cpufreq drivers are not multiplatform compliant
and give build errors as they refer to header files from machine
directory. Work to migrate them to generic cpufreq framework is
under way. Till such time disable the build on multiplatform so
that other multiplatform ready features get tested.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Remaining changes from upstream ACPICA release 20140214 that introduce
code to automatically serialize the execution of methods creating any
named objects which really cannot be executed in parallel with each
other anyway (previously ACPICA attempted to address that by aborting
methods upon conflict detection, but that wasn't reliable enough and
led to other issues). From Bob Moore and Lv Zheng.
- intel_pstate fix to use del_timer_sync() instead of del_timer() in
the exit path before freeing the timer structure from Dirk Brandewie
(original patch from Thomas Gleixner).
- cpufreq fix related to system resume from Viresh Kumar.
- Serialization of frequency transitions in cpufreq that involve
PRECHANGE and POSTCHANGE notifications to avoid ordering issues
resulting from race conditions. From Srivatsa S Bhat and Viresh Kumar.
- Revert of an ACPI processor driver change that was based on a specific
interpretation of the ACPI spec which may not be correct (the relevant
part of the spec appears to be incomplete). From Hanjun Guo.
- Runtime PM core cleanups and documentation updates from Geert Uytterhoeven.
- PNP core cleanup from Michael Opdenacker.
/
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Merge tag 'pm+acpi-3.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management updates from Rafael Wysocki:
"These are commits that were not quite ready when I sent the original
pull request for 3.15-rc1 several days ago, but they have spent some
time in linux-next since then and appear to be good to go. All of
them are fixes and cleanups.
Specifics:
- Remaining changes from upstream ACPICA release 20140214 that
introduce code to automatically serialize the execution of methods
creating any named objects which really cannot be executed in
parallel with each other anyway (previously ACPICA attempted to
address that by aborting methods upon conflict detection, but that
wasn't reliable enough and led to other issues). From Bob Moore
and Lv Zheng.
- intel_pstate fix to use del_timer_sync() instead of del_timer() in
the exit path before freeing the timer structure from Dirk
Brandewie (original patch from Thomas Gleixner).
- cpufreq fix related to system resume from Viresh Kumar.
- Serialization of frequency transitions in cpufreq that involve
PRECHANGE and POSTCHANGE notifications to avoid ordering issues
resulting from race conditions. From Srivatsa S Bhat and Viresh
Kumar.
- Revert of an ACPI processor driver change that was based on a
specific interpretation of the ACPI spec which may not be correct
(the relevant part of the spec appears to be incomplete). From
Hanjun Guo.
- Runtime PM core cleanups and documentation updates from Geert
Uytterhoeven.
- PNP core cleanup from Michael Opdenacker"
* tag 'pm+acpi-3.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: Make cpufreq_notify_transition & cpufreq_notify_post_transition static
cpufreq: Convert existing drivers to use cpufreq_freq_transition_{begin|end}
cpufreq: Make sure frequency transitions are serialized
intel_pstate: Use del_timer_sync in intel_pstate_cpu_stop
cpufreq: resume drivers before enabling governors
PM / Runtime: Spelling s/competing/completing/
PM / Runtime: s/foo_process_requests/foo_process_next_request/
PM / Runtime: GENERIC_SUBSYS_PM_OPS is gone
PM / Runtime: Correct documented return values for generic PM callbacks
PM / Runtime: Split line longer than 80 characters
PM / Runtime: dev_pm_info.runtime_error is signed
Revert "ACPI / processor: Make it possible to get APIC ID via GIC"
ACPICA: Enable auto-serialization as a default kernel behavior.
ACPICA: Ignore sync_level for methods that have been auto-serialized.
ACPICA: Add additional named objects for the auto-serialize method scan.
ACPICA: Add auto-serialization support for ill-behaved control methods.
ACPICA: Remove global option to serialize all control methods.
PNP: remove deprecated IRQF_DISABLED
Pull powerpc non-virtualized cpuidle from Ben Herrenschmidt:
"This is the branch I mentioned in my other pull request which contains
our improved cpuidle support for the "powernv" platform
(non-virtualized).
It adds support for the "fast sleep" feature of the processor which
provides higher power savings than our usual "nap" mode but at the
cost of losing the timers while asleep, and thus exploits the new
timer broadcast framework to work around that limitation.
It's based on a tip timer tree that you seem to have already merged"
* 'powernv-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
cpuidle/powernv: Parse device tree to setup idle states
cpuidle/powernv: Add "Fast-Sleep" CPU idle state
powerpc/powernv: Add OPAL call to resync timebase on wakeup
powerpc/powernv: Add context management for Fast Sleep
powerpc: Split timer_interrupt() into timer handling and interrupt handling routines
powerpc: Implement tick broadcast IPI as a fixed IPI message
powerpc: Free up the slot of PPC_MSG_CALL_FUNC_SINGLE IPI message
Pull main powerpc updates from Ben Herrenschmidt:
"This time around, the powerpc merges are going to be a little bit more
complicated than usual.
This is the main pull request with most of the work for this merge
window. I will describe it a bit more further down.
There is some additional cpuidle driver work, however I haven't
included it in this tree as it depends on some work in tip/timer-core
which Thomas accidentally forgot to put in a topic branch. Since I
didn't want to carry all of that tip timer stuff in powerpc -next, I
setup a separate branch on top of Thomas tree with just that cpuidle
driver in it, and Stephen has been carrying that in next separately
for a while now. I'll send a separate pull request for it.
Additionally, two new pieces in this tree add users for a sysfs API
that Tejun and Greg have been deprecating in drivers-core-next.
Thankfully Greg reverted the patch that removes the old API so this
merge can happen cleanly, but once merged, I will send a patch
adjusting our new code to the new API so that Greg can send you the
removal patch.
Now as for the content of this branch, we have a lot of perf work for
power8 new counters including support for our new "nest" counters
(also called 24x7) under pHyp (not natively yet).
We have new functionality when running under the OPAL firmware
(non-virtualized or KVM host), such as access to the firmware error
logs and service processor dumps, system parameters and sensors, along
with a hwmon driver for the latter.
There's also a bunch of bug fixes accross the board, some LE fixes,
and a nice set of selftests for validating our various types of copy
loops.
On the Freescale side, we see mostly new chip/board revisions, some
clock updates, better support for machine checks and debug exceptions,
etc..."
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (70 commits)
powerpc/book3s: Fix CFAR clobbering issue in machine check handler.
powerpc/compat: 32-bit little endian machine name is ppcle, not ppc
powerpc/le: Big endian arguments for ppc_rtas()
powerpc: Use default set of netfilter modules (CONFIG_NETFILTER_ADVANCED=n)
powerpc/defconfigs: Enable THP in pseries defconfig
powerpc/mm: Make sure a local_irq_disable prevent a parallel THP split
powerpc: Rate-limit users spamming kernel log buffer
powerpc/perf: Fix handling of L3 events with bank == 1
powerpc/perf/hv_{gpci, 24x7}: Add documentation of device attributes
powerpc/perf: Add kconfig option for hypervisor provided counters
powerpc/perf: Add support for the hv 24x7 interface
powerpc/perf: Add support for the hv gpci (get performance counter info) interface
powerpc/perf: Add macros for defining event fields & formats
powerpc/perf: Add a shared interface to get gpci version and capabilities
powerpc/perf: Add 24x7 interface headers
powerpc/perf: Add hv_gpci interface header
powerpc: Add hvcalls for 24x7 and gpci (Get Performance Counter Info)
sysfs: create bin_attributes under the requested group
powerpc/perf: Enable BHRB access for EBB events
powerpc/perf: Add BHRB constraint and IFM MMCRA handling for EBB
...
Pull MIPS updates from Ralf Baechle:
- Support for Imgtec's Aptiv family of MIPS cores.
- Improved detection of BCM47xx configurations.
- Fix hiberation for certain configurations.
- Add support for the Chinese Loongson 3 CPU, a MIPS64 R2 core and
systems.
- Detection and support for the MIPS P5600 core.
- A few more random fixes that didn't make 3.14.
- Support for the EVA Extended Virtual Addressing
- Switch Alchemy to the platform PATA driver
- Complete unification of Alchemy support
- Allow availability of I/O cache coherency to be runtime detected
- Improvments to multiprocessing support for Imgtec platforms
- A few microoptimizations
- Cleanups of FPU support
- Paul Gortmaker's fixes for the init stuff
- Support for seccomp
* 'mips-for-linux-next' of git://git.linux-mips.org/pub/scm/ralf/upstream-sfr: (165 commits)
MIPS: CPC: Use __raw_ memory access functions
MIPS: CM: use __raw_ memory access functions
MIPS: Fix warning when including smp-ops.h with CONFIG_SMP=n
MIPS: Malta: GIC IPIs may be used without MT
MIPS: smp-mt: Use common GIC IPI implementation
MIPS: smp-cmp: Remove incorrect core number probe
MIPS: Fix gigaton of warning building with microMIPS.
MIPS: Fix core number detection for MT cores
MIPS: MT: core_nvpes function to retrieve VPE count
MIPS: Provide empty mips_mt_set_cpuoptions when CONFIG_MIPS_MT=n
MIPS: Lasat: Replace del_timer by del_timer_sync
MIPS: Malta: Setup PM I/O region on boot
MIPS: Loongson: Add a Loongson-3 default config file
MIPS: Loongson 3: Add CPU hotplug support
MIPS: Loongson 3: Add Loongson-3 SMP support
MIPS: Loongson: Add Loongson-3 Kconfig options
MIPS: Loongson: Add swiotlb to support All-Memory DMA
MIPS: Loongson 3: Add serial port support
MIPS: Loongson 3: Add IRQ init and dispatch support
MIPS: Loongson 3: Add HT-linked PCI support
...
Commit 7439717498 attempted to clean up the power management options
for arm64, but when things were merged it didn't fully take effect. Fix
it again.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull x86 old platform removal from Peter Anvin:
"This patchset removes support for several completely obsolete
platforms, where the maintainers either have completely vanished or
acked the removal. For some of them it is questionable if there even
exists functional specimens of the hardware"
Geert Uytterhoeven apparently thought this was a April Fool's pull request ;)
* 'x86-nuke-platforms-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, platforms: Remove NUMAQ
x86, platforms: Remove SGI Visual Workstation
x86, apic: Remove support for IBM Summit/EXA chipset
x86, apic: Remove support for ia32-based Unisys ES7000
Pull compat time conversion changes from Peter Anvin:
"Despite the branch name this is really neither an x86 nor an
x32-specific patchset, although it the implementation of the
discussions that followed the x32 security hole a few months ago.
This removes get/put_compat_timespec/val() and replaces them with
compat_get/put_timespec/val() which are savvy as to the current status
of COMPAT_USE_64BIT_TIME.
It removes several unused and/or incorrect/misleading functions (like
compat_put_timeval_convert which doesn't in fact do any conversion)
and also replaces several open-coded implementations what is now
called compat_convert_timespec() with that function"
* 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
compat: Fix sparse address space warnings
compat: Get rid of (get|put)_compat_time(val|spec)
Pull x86 vdso changes from Peter Anvin:
"This is the revamp of the 32-bit vdso and the associated cleanups.
This adds timekeeping support to the 32-bit vdso that we already have
in the 64-bit vdso. Although 32-bit x86 is legacy, it is likely to
remain in the embedded space for a very long time to come.
This removes the traditional COMPAT_VDSO support; the configuration
variable is reused for simply removing the 32-bit vdso, which will
produce correct results but obviously suffer a performance penalty.
Only one beta version of glibc was affected, but that version was
unfortunately included in one OpenSUSE release.
This is not the end of the vdso cleanups. Stefani and Andy have
agreed to continue work for the next kernel cycle; in fact Andy has
already produced another set of cleanups that came too late for this
cycle.
An incidental, but arguably important, change is that this ensures
that unused space in the VVAR page is properly zeroed. It wasn't
before, and would contain whatever garbage was left in memory by BIOS
or the bootloader. Since the VVAR page is accessible to user space
this had the potential of information leaks"
* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
x86, vdso: Fix the symbol versions on the 32-bit vDSO
x86, vdso, build: Don't rebuild 32-bit vdsos on every make
x86, vdso: Actually discard the .discard sections
x86, vdso: Fix size of get_unmapped_area()
x86, vdso: Finish removing VDSO32_PRELINK
x86, vdso: Move more vdso definitions into vdso.h
x86: Load the 32-bit vdso in place, just like the 64-bit vdsos
x86, vdso32: handle 32 bit vDSO larger one page
x86, vdso32: Disable stack protector, adjust optimizations
x86, vdso: Zero-pad the VVAR page
x86, vdso: Add 32 bit VDSO time support for 64 bit kernel
x86, vdso: Add 32 bit VDSO time support for 32 bit kernel
x86, vdso: Patch alternatives in the 32-bit VDSO
x86, vdso: Introduce VVAR marco for vdso32
x86, vdso: Cleanup __vdso_gettimeofday()
x86, vdso: Replace VVAR(vsyscall_gtod_data) by gtod macro
x86, vdso: __vdso_clock_gettime() cleanup
x86, vdso: Revamp vclock_gettime.c
mm: Add new func _install_special_mapping() to mmap.c
x86, vdso: Make vsyscall_gtod_data handling x86 generic
...
Pull x86 boot changes from Peter Anvin:
"This patchset is a set of cleanups aiming at librarize some of the
common code from the boot environments. We currently have three
different "little environments" (boot, boot/compressed, and
realmode/rm) in x86, and we are likely to soon get a fourth one
(kexec/purgatory, which will have to be integrated in the kernel to
support secure kexec). This is primarily a cleanup in the
anticipation of the latter.
While Vivek implemented this, he ran into some bugs, in particular the
memcmp implementation for when gcc punts from using the builtin would
have a misnamed symbol, causing compilation errors if we were ever
unlucky enough that gcc didn't want to inline the test"
* 'x86/boot' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, boot: Move memset() definition in compressed/string.c
x86, boot: Move memcmp() into string.h and string.c
x86, boot: Move optimized memcpy() 32/64 bit versions to compressed/string.c
x86, boot: Create a separate string.h file to provide standard string functions
x86, boot: Undef memcmp before providing a new definition
- Remove unused NUMA definition (SD_NODE_INIT)
- Refactor signal code to use struct ksignal
- IRQ migration cleanup to use irq_set_affinity
- Clean up main Kconfig file a little
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Merge tag 'metag-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag
Pull Metag architecture changes from James Hogan:
- Remove unused NUMA definition (SD_NODE_INIT)
- Refactor signal code to use struct ksignal
- IRQ migration cleanup to use irq_set_affinity
- Clean up main Kconfig file a little
* tag 'metag-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
sched: remove unused SCHED_INIT_NODE
metag: Use get_signal() signal_setup_done()
metag: Fix METAG Kconfig symbol select ordering
metag: Use irq_set_affinity instead of homebrewn code
Commit 2223f6f6ee "x86: Clean up dumpstack_64.c code" changed
the irq_stack processing a little from what it was before.
The irq_stack_end variable needed to be cleared after its first
use. By setting irq_stack to the per cpu irq_stack and passing
that to analyze_stack(), and then clearing it after it is processed,
we can get back the original behavior.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 2223f6f6ee "x86: Clean up dumpstack_64.c code" moved the used
variable to a local within the loop, but the in_exception_stack()
depended on being non-volatile with the ability to change it.
By always re-initializing the "used" variable to zero, it would cause
the in_exception_stack() to return the same thing each time, and
cause the dump_stack loop to go into an infinite loop.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull block driver update from Jens Axboe:
"On top of the core pull request, here's the pull request for the
driver related changes for 3.15. It contains:
- Improvements for msi-x registration for block drivers (mtip32xx,
skd, cciss, nvme) from Alexander Gordeev.
- A round of cleanups and improvements for drbd from Andreas
Gruenbacher and Rashika Kheria.
- A round of clanups and improvements for bcache from Kent.
- Removal of sleep_on() and friends in DAC960, ataflop, swim3 from
Arnd Bergmann.
- Bug fix for a bug in the mtip32xx async completion code from Sam
Bradshaw.
- Bug fix for accidentally bouncing IO on 32-bit platforms with
mtip32xx from Felipe Franciosi"
* 'for-3.15/drivers' of git://git.kernel.dk/linux-block: (103 commits)
bcache: remove nested function usage
bcache: Kill bucket->gc_gen
bcache: Kill unused freelist
bcache: Rework btree cache reserve handling
bcache: Kill btree_io_wq
bcache: btree locking rework
bcache: Fix a race when freeing btree nodes
bcache: Add a real GC_MARK_RECLAIMABLE
bcache: Add bch_keylist_init_single()
bcache: Improve priority_stats
bcache: Better alloc tracepoints
bcache: Kill dead cgroup code
bcache: stop moving_gc marking buckets that can't be moved.
bcache: Fix moving_pred()
bcache: Fix moving_gc deadlocking with a foreground write
bcache: Fix discard granularity
bcache: Fix another bug recovering from unclean shutdown
bcache: Fix a bug recovering from unclean shutdown
bcache: Fix a journalling reclaim after recovery bug
bcache: Fix a null ptr deref in journal replay
...
Pull core block layer updates from Jens Axboe:
"This is the pull request for the core block IO bits for the 3.15
kernel. It's a smaller round this time, it contains:
- Various little blk-mq fixes and additions from Christoph and
myself.
- Cleanup of the IPI usage from the block layer, and associated
helper code. From Frederic Weisbecker and Jan Kara.
- Duplicate code cleanup in bio-integrity from Gu Zheng. This will
give you a merge conflict, but that should be easy to resolve.
- blk-mq notify spinlock fix for RT from Mike Galbraith.
- A blktrace partial accounting bug fix from Roman Pen.
- Missing REQ_SYNC detection fix for blk-mq from Shaohua Li"
* 'for-3.15/core' of git://git.kernel.dk/linux-block: (25 commits)
blk-mq: add REQ_SYNC early
rt,blk,mq: Make blk_mq_cpu_notify_lock a raw spinlock
blk-mq: support partial I/O completions
blk-mq: merge blk_mq_insert_request and blk_mq_run_request
blk-mq: remove blk_mq_alloc_rq
blk-mq: don't dump CPU -> hw queue map on driver load
blk-mq: fix wrong usage of hctx->state vs hctx->flags
blk-mq: allow blk_mq_init_commands() to return failure
block: remove old blk_iopoll_enabled variable
blktrace: fix accounting of partially completed requests
smp: Rename __smp_call_function_single() to smp_call_function_single_async()
smp: Remove wait argument from __smp_call_function_single()
watchdog: Simplify a little the IPI call
smp: Move __smp_call_function_single() below its safe version
smp: Consolidate the various smp_call_function_single() declensions
smp: Teach __smp_call_function_single() to check for offline cpus
smp: Remove unused list_head from csd
smp: Iterate functions through llist_for_each_entry_safe()
block: Stop abusing rq->csd.list in blk-softirq
block: Remove useless IPI struct initialization
...
This patch consists of the usual driver updates (megaraid_sas, scsi_debug,
qla2xxx, qla4xxx, lpfc, bnx2fc, be2iscsi, hpsa, ipr) plus an assortment of
minor fixes and the first precursors of SCSI-MQ (the code path
simplifications) and the bug fix for the USB oops on remove (which involves an
infrastructure change, so is sent via the main tree with a delayed backport
after a cycle in which it is shown to introduce no new bugs).
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull first round of SCSI updates from James Bottomley:
"This patch consists of the usual driver updates (megaraid_sas,
scsi_debug, qla2xxx, qla4xxx, lpfc, bnx2fc, be2iscsi, hpsa, ipr) plus
an assortment of minor fixes and the first precursors of SCSI-MQ (the
code path simplifications) and the bug fix for the USB oops on remove
(which involves an infrastructure change, so is sent via the main tree
with a delayed backport after a cycle in which it is shown to
introduce no new bugs)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (196 commits)
[SCSI] sd: Quiesce mode sense error messages
[SCSI] add support for per-host cmd pools
[SCSI] simplify command allocation and freeing a bit
[SCSI] megaraid: simplify internal command handling
[SCSI] ses: Use vpd information from scsi_device
[SCSI] Add EVPD page 0x83 and 0x80 to sysfs
[SCSI] Return VPD page length in scsi_vpd_inquiry()
[SCSI] scsi_sysfs: Implement 'is_visible' callback
[SCSI] hpsa: update driver version to 3.4.4-1
[SCSI] hpsa: fix bad endif placement in RAID 5 mapper code
[SCSI] qla2xxx: Fix build errors related to invalid print fields on some architectures.
[SCSI] bfa: Replace large udelay() with mdelay()
[SCSI] vmw_pvscsi: Some improvements in pvscsi driver.
[SCSI] vmw_pvscsi: Add support for I/O requests coalescing.
[SCSI] vmw_pvscsi: Fix pvscsi_abort() function.
[SCSI] remove deprecated IRQF_DISABLED from SCSI
[SCSI] bfa: Updating Maintainers email ids
[SCSI] ipr: Add new CCIN definition for Grand Canyon support
[SCSI] ipr: Format HCAM overlay ID 0x21
[SCSI] ipr: Use pci_enable_msi_range() and pci_enable_msix_range()
...
Here's the big USB pull request for 3.15-rc1.
The normal set of patches, lots of controller driver updates, and a
smattering of individual USB driver updates as well.
All have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg KH:
"Here's the big USB pull request for 3.15-rc1.
The normal set of patches, lots of controller driver updates, and a
smattering of individual USB driver updates as well.
All have been in linux-next for a while"
* tag 'usb-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (249 commits)
xhci: Transition maintainership to Mathias Nyman.
USB: disable reset-resume when USB_QUIRK_RESET is set
USB: unbind all interfaces before rebinding any
usb: phy: Add ulpi IDs for SMSC USB3320 and TI TUSB1210
usb: gadget: tcm_usb_gadget: stop format strings
usb: gadget: f_fs: add missing spinlock and mutex unlock
usb: gadget: composite: switch over to ERR_CAST()
usb: gadget: inode: switch over to memdup_user()
usb: gadget: f_subset: switch over to PTR_RET
usb: gadget: lpc32xx_udc: fix wrong clk_put() sequence
USB: keyspan: remove dead debugging code
USB: serial: add missing newlines to dev_<level> messages.
USB: serial: add missing braces
USB: serial: continue to write on errors
USB: serial: continue to read on errors
USB: serial: make bulk_out_size a lower limit
USB: cypress_m8: fix potential scheduling while atomic
devicetree: bindings: document lsi,zevio-usb
usb: chipidea: add support for USB OTG controller on LSI Zevio SoCs
usb: chipidea: imx: Use dev_name() for ci_hdrc name to distinguish USBs
...
Here's the big tty/serial driver update for 3.15-rc1.
Nothing major, a number of serial driver updates and a few tty core
fixes as well.
All have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver update from Greg KH:
"Here's the big tty/serial driver update for 3.15-rc1.
Nothing major, a number of serial driver updates and a few tty core
fixes as well.
All have been in linux-next for a while"
* tag 'tty-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (71 commits)
tty/serial: omap: empty the RX FIFO at the end of half-duplex TX
tty/serial: omap: fix RX interrupt enable/disable in half-duplex TX
serial: sh-sci: Neaten dev_<level> uses
serial: sh-sci: Replace hardcoded 3 by UART_PM_STATE_OFF
serial: sh-sci: Add more register documentation
serial: sh-sci: Remove useless casts
serial: sh-sci: Replace printk() by pr_*()
serial_core: Avoid NULL pointer dereference in uart_close()
serial_core: Get a reference for port->tty in uart_remove_one_port()
serial: clps711x: Give a chance to perform useful tasks during wait loop
serial_core: Grammar s/ports/port's/
serial_core: Spelling s/contro/control/
serial: efm32: properly namespace location property
serial: max310x: Add missing #include <linux/uaccess.h>
synclink: fix info leak in ioctl
serial: 8250: Clean up the locking for -rt
serial: 8250_pci: change BayTrail default uartclk
serial: 8250_pci: more BayTrail error-free bauds
serial: sh-sci: Add missing call to uart_remove_one_port() in failure path
serial_core: Unregister console in uart_remove_one_port()
...
Here's the huge drivers/staging/ update for 3.15-rc1.
Loads of cleanup fixes, a few drivers removed, and some new ones added.
All have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the huge drivers/staging/ update for 3.15-rc1.
Loads of cleanup fixes, a few drivers removed, and some new ones
added.
All have been in linux-next for a while"
* tag 'staging-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1375 commits)
staging: xillybus: XILLYBUS_PCIE depends on PCI_MSI
staging: xillybus: Added "select CRC32" for XILLYBUS in Kconfig
staging: comedi: poc: remove obsolete driver
staging: unisys: replace kzalloc/kfree with UISMALLOC/UISFREE
staging: octeon-usb: prevent memory corruption
staging: usbip: fix line over 80 characters
staging: usbip: fix quoted string split across lines
Staging: unisys: Remove RETINT macro
Staging: unisys: Remove FAIL macro
Staging: unisys: Remove RETVOID macro
Staging: unisys: Remove RETPTR macro
Staging: unisys: Remove RETBOOL macro
Staging: unisys: Remove FAIL_WPOSTCODE_1 macro
Staging: unisys: Cleanup macros to get rid of goto statements
Staging: unisys: include: Remove unused macros from timskmod.h
staging: dgap: fix the rest of the checkpatch warnings in dgap.c
Staging: bcm: Remove unnecessary parentheses
staging: wlags49_h2: Delete unnecessary braces
staging: wlags49_h2: Do not use assignment in if condition
staging: wlags49_h2: Enclose macro in a do-while loop
...
Here's the big driver core / sysfs update for 3.15-rc1.
Lots of kernfs updates to make it useful for other subsystems, and a few
other tiny driver core patches.
All have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and sysfs updates from Greg KH:
"Here's the big driver core / sysfs update for 3.15-rc1.
Lots of kernfs updates to make it useful for other subsystems, and a
few other tiny driver core patches.
All have been in linux-next for a while"
* tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (42 commits)
Revert "sysfs, driver-core: remove unused {sysfs|device}_schedule_callback_owner()"
kernfs: cache atomic_write_len in kernfs_open_file
numa: fix NULL pointer access and memory leak in unregister_one_node()
Revert "driver core: synchronize device shutdown"
kernfs: fix off by one error.
kernfs: remove duplicate dir.c at the top dir
x86: align x86 arch with generic CPU modalias handling
cpu: add generic support for CPU feature based module autoloading
sysfs: create bin_attributes under the requested group
driver core: unexport static function create_syslog_header
firmware: use power efficient workqueue for unloading and aborting fw load
firmware: give a protection when map page failed
firmware: google memconsole driver fixes
firmware: fix google/gsmi duplicate efivars_sysfs_init()
drivers/base: delete non-required instances of include <linux/init.h>
kernfs: fix kernfs_node_from_dentry()
ACPI / platform: drop redundant ACPI_HANDLE check
kernfs: fix hash calculation in kernfs_rename_ns()
kernfs: add CONFIG_KERNFS
sysfs, kobject: add sysfs wrapper for kernfs_enable_ns()
...
Here's the big char/misc driver updates for 3.15-rc1.
Lots of various things here, including the new mcb driver subsystem.
All of these have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver patches from Greg KH:
"Here's the big char/misc driver updates for 3.15-rc1.
Lots of various things here, including the new mcb driver subsystem.
All of these have been in linux-next for a while"
* tag 'char-misc-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (118 commits)
extcon: Move OF helper function to extcon core and change function name
extcon: of: Remove unnecessary function call by using the name of device_node
extcon: gpio: Use SIMPLE_DEV_PM_OPS macro
extcon: palmas: Use SIMPLE_DEV_PM_OPS macro
mei: don't use deprecated DEFINE_PCI_DEVICE_TABLE macro
mei: amthif: fix checkpatch error
mei: client.h fix checkpatch errors
mei: use cl_dbg where appropriate
mei: fix Unnecessary space after function pointer name
mei: report consistently copy_from/to_user failures
mei: drop pr_fmt macros
mei: make me hw headers private to me hw.
mei: fix memory leak of pending write cb objects
mei: me: do not reset when less than expected data is received
drivers: mcb: Fix build error discovered by 0-day bot
cs5535-mfgpt: Simplify dependencies
spmi: pm: drop bus-level PM suspend/resume routines
spmi: pmic_arb: make selectable on ARCH_QCOM
Drivers: hv: vmbus: Increase the limit on the number of pfns we can handle
pch_phub: Report error writing MAC back to user
...
There have been lots of changes in ALSA core, HD-audio and ASoC, also
most of PCI drivers touched by conversions of printks. All these
resulted in a high volume and wide ranged patch sets in this release.
Many changes are fairly trivial, but also lots of nice cleanups and
refactors. There are a few new drivers, most notably, the Intel
Haswell and Baytrail ASoC driver.
Core changes:
- A bit modernization; embed the device struct into snd_card struct,
so that it may be referred from the beginning. A new snd_card_new()
function is introduced for that, and all drivers have been
converted.
- Simplification in the device management code in ALSA core;
now managed by a simple priority list instead
- Converted many kernel messages to use the standard dev_err() & co;
this would be the pretty visible difference, especially for
HD-audio.
HD-audio:
- Conexant codecs use the auto-parser as default now;
the old static code still remains in case of regressions.
Some old quirks have been rewritten with the fixups for auto-parser.
- C-Media codecs also use the auto-parser as default now, too.
- A device struct is assigned to each HD-audio codec, and the formerly
hwdep attributes are accessible over the codec sysfs, too.
hwdep attributes still remain for compatibility.
- Split the PCI-specific stuff for HD-audio controller into a separate
module, ane make a helper module for the generic controller driver.
This is a preliminary change for supporting Tegra HDMI controller in
near future, which slipped from 3.15 merge.
- Device-specific fixes: mute LED support for Lenovo Ideapad,
mic LED fix for HP laptops, more ASUS subwoofer quirks, yet more
Dell laptop headset quirks
- Make the HD-audio codec response a bit more robust
- A few improvements on Realtek ALC282 / 283 about the pop noises
- A couple of Intel HDMI fixes
ASoC:
- Lots of cleanups for enumerations; refactored lots of error prone
original codes to use more modern APIs
- Elimination of the ASoC level wrappers for I2C and SPI moving us
closer to converting to regmap completely and avoiding some
randconfig hassle
- Provide both manually and transparently locked DAPM APIs rather than
a mix of the two fixing some concurrency issues
- Start converting CODEC drivers to use separate bus interface drivers
rather than having them all in one file helping avoid dependency
issues
- DPCM support for Intel Haswell and Bay Trail platforms, lots of
fixes
- Lots of work on improvements for simple-card, DaVinci and the Renesas
rcar drivers.
- New drivers for Analog Devices ADAU1977, TI PCM512x and parts of the
CSR SiRF SoC, TLV320AIC31XXX, Armada 370 DB, Cirrus cs42xx8
- Fixes for the simple-card DAI format DT mess
- DT support for a couple more devices.
- Use of the tdm_slot mapping in a few drivers
Others:
- Support of reset_resume callback for improved S4 in USB-audio driver;
the device with boot quirks have been little tested, which we need
to watch out in this development cycle
- Add PM support for ICE1712 driver (finally!);
it's still pretty partial support, only for M-Audio devices
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Merge tag 'sound-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"There have been lots of changes in ALSA core, HD-audio and ASoC, also
most of PCI drivers touched by conversions of printks. All these
resulted in a high volume and wide ranged patch sets in this release.
Many changes are fairly trivial, but also lots of nice cleanups and
refactors. There are a few new drivers, most notably, the Intel
Haswell and Baytrail ASoC driver.
Core changes:
- A bit modernization; embed the device struct into snd_card struct,
so that it may be referred from the beginning. A new
snd_card_new() function is introduced for that, and all drivers
have been converted.
- Simplification in the device management code in ALSA core; now
managed by a simple priority list instead
- Converted many kernel messages to use the standard dev_err() & co;
this would be the pretty visible difference, especially for
HD-audio.
HD-audio:
- Conexant codecs use the auto-parser as default now; the old static
code still remains in case of regressions. Some old quirks have
been rewritten with the fixups for auto-parser.
- C-Media codecs also use the auto-parser as default now, too.
- A device struct is assigned to each HD-audio codec, and the
formerly hwdep attributes are accessible over the codec sysfs, too.
hwdep attributes still remain for compatibility.
- Split the PCI-specific stuff for HD-audio controller into a
separate module, ane make a helper module for the generic
controller driver. This is a preliminary change for supporting
Tegra HDMI controller in near future, which slipped from 3.15
merge.
- Device-specific fixes: mute LED support for Lenovo Ideapad, mic LED
fix for HP laptops, more ASUS subwoofer quirks, yet more Dell
laptop headset quirks
- Make the HD-audio codec response a bit more robust
- A few improvements on Realtek ALC282 / 283 about the pop noises
- A couple of Intel HDMI fixes
ASoC:
- Lots of cleanups for enumerations; refactored lots of error prone
original codes to use more modern APIs
- Elimination of the ASoC level wrappers for I2C and SPI moving us
closer to converting to regmap completely and avoiding some
randconfig hassle
- Provide both manually and transparently locked DAPM APIs rather
than a mix of the two fixing some concurrency issues
- Start converting CODEC drivers to use separate bus interface
drivers rather than having them all in one file helping avoid
dependency issues
- DPCM support for Intel Haswell and Bay Trail platforms, lots of
fixes
- Lots of work on improvements for simple-card, DaVinci and the
Renesas rcar drivers.
- New drivers for Analog Devices ADAU1977, TI PCM512x and parts of
the CSR SiRF SoC, TLV320AIC31XXX, Armada 370 DB, Cirrus cs42xx8
- Fixes for the simple-card DAI format DT mess
- DT support for a couple more devices.
- Use of the tdm_slot mapping in a few drivers
Others:
- Support of reset_resume callback for improved S4 in USB-audio
driver; the device with boot quirks have been little tested, which
we need to watch out in this development cycle
- Add PM support for ICE1712 driver (finally!); it's still pretty
partial support, only for M-Audio devices"
* tag 'sound-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (610 commits)
ALSA: ice1712: Add suspend support for M-Audio ICE1712-based cards
ALSA: ice1712: add suspend support for ICE1712 chip
ALSA: hda - Enable beep for ASUS 1015E
ALSA: asihpi: fix some indenting in snd_card_asihpi_pcm_new()
ALSA: hda - add headset mic detect quirks for three Dell laptops
ASoC: tegra: move AC97 clock handling to the machine driver
ASoC: simple-card: Handle many DAI links
ASoC: simple-card: Add DT documentation for multi-DAI links
ASoC: simple-card: dynamically allocate the DAI link and properties
ASoC: imx-ssi: Add .xlate_tdm_slot_mask() support.
ASoC: fsl-esai: Add .xlate_tdm_slot_mask() support.
ASoC: fsl-utils: Add fsl_asoc_xlate_tdm_slot_mask() support.
ASoC: core: remove the 'of_' prefix of of_xlate_tdm_slot_mask.
ASoC: rcar: subnode tidyup for renesas,rsnd.txt
ASoC: Remove name_prefix unset during DAI link init hack
ALSA: hda - Inform the unexpectedly ignored pins by auto-parser
ASoC: rcar: bugfix: it cares about the non-src case
ARM: bockw: fixup SND_SOC_DAIFMT_CBx_CFx flags
ASoC: pcm: Drop incorrect double/extra frees
ASoC: mfld_machine: Fix compile error
...
Enumeration
- Increment max correctly in pci_scan_bridge() (Andreas Noever)
- Clarify the "scan anyway" comment in pci_scan_bridge() (Andreas Noever)
- Assign CardBus bus number only during the second pass (Andreas Noever)
- Use request_resource_conflict() instead of insert_ for bus numbers (Andreas Noever)
- Make sure bus number resources stay within their parents bounds (Andreas Noever)
- Remove pci_fixup_parent_subordinate_busnr() (Andreas Noever)
- Check for child busses which use more bus numbers than allocated (Andreas Noever)
- Don't scan random busses in pci_scan_bridge() (Andreas Noever)
- x86: Drop pcibios_scan_root() check for bus already scanned (Bjorn Helgaas)
- x86: Use pcibios_scan_root() instead of pci_scan_bus_with_sysdata() (Bjorn Helgaas)
- x86: Use pcibios_scan_root() instead of pci_scan_bus_on_node() (Bjorn Helgaas)
- x86: Merge pci_scan_bus_on_node() into pcibios_scan_root() (Bjorn Helgaas)
- x86: Drop return value of pcibios_scan_root() (Bjorn Helgaas)
NUMA
- x86: Add x86_pci_root_bus_node() to look up NUMA node from PCI bus (Bjorn Helgaas)
- x86: Use x86_pci_root_bus_node() instead of get_mp_bus_to_node() (Bjorn Helgaas)
- x86: Remove mp_bus_to_node[], set_mp_bus_to_node(), get_mp_bus_to_node() (Bjorn Helgaas)
- x86: Use NUMA_NO_NODE, not -1, for unknown node (Bjorn Helgaas)
- x86: Remove acpi_get_pxm() usage (Bjorn Helgaas)
- ia64: Use NUMA_NO_NODE, not MAX_NUMNODES, for unknown node (Bjorn Helgaas)
- ia64: Remove acpi_get_pxm() usage (Bjorn Helgaas)
- ACPI: Fix acpi_get_node() prototype (Bjorn Helgaas)
Resource management
- i2o: Fix and refactor PCI space allocation (Bjorn Helgaas)
- Add resource_contains() (Bjorn Helgaas)
- Add %pR support for IORESOURCE_UNSET (Bjorn Helgaas)
- Mark resources as IORESOURCE_UNSET if we can't assign them (Bjorn Helgaas)
- Don't clear IORESOURCE_UNSET when updating BAR (Bjorn Helgaas)
- Check IORESOURCE_UNSET before updating BAR (Bjorn Helgaas)
- Don't try to claim IORESOURCE_UNSET resources (Bjorn Helgaas)
- Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit (Bjorn Helgaas)
- Don't enable decoding if BAR hasn't been assigned an address (Bjorn Helgaas)
- Add "weak" generic pcibios_enable_device() implementation (Bjorn Helgaas)
- alpha, microblaze, sh, sparc, tile: Use default pcibios_enable_device() (Bjorn Helgaas)
- s390: Use generic pci_enable_resources() (Bjorn Helgaas)
- Don't check resource_size() in pci_bus_alloc_resource() (Bjorn Helgaas)
- Set type in __request_region() (Bjorn Helgaas)
- Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region() (Bjorn Helgaas)
- Change pci_bus_alloc_resource() type_mask to unsigned long (Bjorn Helgaas)
- Log IDE resource quirk in dmesg (Bjorn Helgaas)
- Revert "[PATCH] Insert GART region into resource map" (Bjorn Helgaas)
PCI device hotplug
- Make check_link_active() non-static (Rajat Jain)
- Use link change notifications for hot-plug and removal (Rajat Jain)
- Enable link state change notifications (Rajat Jain)
- Don't disable the link permanently during removal (Rajat Jain)
- Don't check adapter or latch status while disabling (Rajat Jain)
- Disable link notification across slot reset (Rajat Jain)
- Ensure very fast hotplug events are also processed (Rajat Jain)
- Add hotplug_lock to serialize hotplug events (Rajat Jain)
- Remove a non-existent card, regardless of "surprise" capability (Rajat Jain)
- Don't turn slot off when hot-added device already exists (Yijing Wang)
MSI
- Keep pci_enable_msi() documentation (Alexander Gordeev)
- ahci: Fix broken single MSI fallback (Alexander Gordeev)
- ahci, vfio: Use pci_enable_msi_range() (Alexander Gordeev)
- Check kmalloc() return value, fix leak of name (Greg Kroah-Hartman)
- Fix leak of msi_attrs (Greg Kroah-Hartman)
- Fix pci_msix_vec_count() htmldocs failure (Masanari Iida)
Virtualization
- Device-specific ACS support (Alex Williamson)
Freescale i.MX6
- Wait for retraining (Marek Vasut)
Marvell MVEBU
- Use Device ID and revision from underlying endpoint (Andrew Lunn)
- Fix incorrect size for PCI aperture resources (Jason Gunthorpe)
- Call request_resource() on the apertures (Jason Gunthorpe)
- Fix potential issue in range parsing (Jean-Jacques Hiblot)
Renesas R-Car
- Check platform_get_irq() return code (Ben Dooks)
- Add error interrupt handling (Ben Dooks)
- Fix bridge logic configuration accesses (Ben Dooks)
- Register each instance independently (Magnus Damm)
- Break out window size handling (Magnus Damm)
- Make the Kconfig dependencies more generic (Magnus Damm)
Synopsys DesignWare
- Fix RC BAR to be single 64-bit non-prefetchable memory (Mohit Kumar)
Miscellaneous
- Remove unused SR-IOV VF Migration support (Bjorn Helgaas)
- Enable INTx if BIOS left them disabled (Bjorn Helgaas)
- Fix hex vs decimal typo in cpqhpc_probe() (Dan Carpenter)
- Clean up par-arch object file list (Liviu Dudau)
- Set IORESOURCE_ROM_SHADOW only for the default VGA device (Sander Eikelenboom)
- ACPI, ARM, drm, powerpc, pcmcia, PCI: Use list_for_each_entry() for bus traversal (Yijing Wang)
- Fix pci_bus_b() build failure (Paul Gortmaker)
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Merge tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"Enumeration
- Increment max correctly in pci_scan_bridge() (Andreas Noever)
- Clarify the "scan anyway" comment in pci_scan_bridge() (Andreas Noever)
- Assign CardBus bus number only during the second pass (Andreas Noever)
- Use request_resource_conflict() instead of insert_ for bus numbers (Andreas Noever)
- Make sure bus number resources stay within their parents bounds (Andreas Noever)
- Remove pci_fixup_parent_subordinate_busnr() (Andreas Noever)
- Check for child busses which use more bus numbers than allocated (Andreas Noever)
- Don't scan random busses in pci_scan_bridge() (Andreas Noever)
- x86: Drop pcibios_scan_root() check for bus already scanned (Bjorn Helgaas)
- x86: Use pcibios_scan_root() instead of pci_scan_bus_with_sysdata() (Bjorn Helgaas)
- x86: Use pcibios_scan_root() instead of pci_scan_bus_on_node() (Bjorn Helgaas)
- x86: Merge pci_scan_bus_on_node() into pcibios_scan_root() (Bjorn Helgaas)
- x86: Drop return value of pcibios_scan_root() (Bjorn Helgaas)
NUMA
- x86: Add x86_pci_root_bus_node() to look up NUMA node from PCI bus (Bjorn Helgaas)
- x86: Use x86_pci_root_bus_node() instead of get_mp_bus_to_node() (Bjorn Helgaas)
- x86: Remove mp_bus_to_node[], set_mp_bus_to_node(), get_mp_bus_to_node() (Bjorn Helgaas)
- x86: Use NUMA_NO_NODE, not -1, for unknown node (Bjorn Helgaas)
- x86: Remove acpi_get_pxm() usage (Bjorn Helgaas)
- ia64: Use NUMA_NO_NODE, not MAX_NUMNODES, for unknown node (Bjorn Helgaas)
- ia64: Remove acpi_get_pxm() usage (Bjorn Helgaas)
- ACPI: Fix acpi_get_node() prototype (Bjorn Helgaas)
Resource management
- i2o: Fix and refactor PCI space allocation (Bjorn Helgaas)
- Add resource_contains() (Bjorn Helgaas)
- Add %pR support for IORESOURCE_UNSET (Bjorn Helgaas)
- Mark resources as IORESOURCE_UNSET if we can't assign them (Bjorn Helgaas)
- Don't clear IORESOURCE_UNSET when updating BAR (Bjorn Helgaas)
- Check IORESOURCE_UNSET before updating BAR (Bjorn Helgaas)
- Don't try to claim IORESOURCE_UNSET resources (Bjorn Helgaas)
- Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit (Bjorn Helgaas)
- Don't enable decoding if BAR hasn't been assigned an address (Bjorn Helgaas)
- Add "weak" generic pcibios_enable_device() implementation (Bjorn Helgaas)
- alpha, microblaze, sh, sparc, tile: Use default pcibios_enable_device() (Bjorn Helgaas)
- s390: Use generic pci_enable_resources() (Bjorn Helgaas)
- Don't check resource_size() in pci_bus_alloc_resource() (Bjorn Helgaas)
- Set type in __request_region() (Bjorn Helgaas)
- Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region() (Bjorn Helgaas)
- Change pci_bus_alloc_resource() type_mask to unsigned long (Bjorn Helgaas)
- Log IDE resource quirk in dmesg (Bjorn Helgaas)
- Revert "[PATCH] Insert GART region into resource map" (Bjorn Helgaas)
PCI device hotplug
- Make check_link_active() non-static (Rajat Jain)
- Use link change notifications for hot-plug and removal (Rajat Jain)
- Enable link state change notifications (Rajat Jain)
- Don't disable the link permanently during removal (Rajat Jain)
- Don't check adapter or latch status while disabling (Rajat Jain)
- Disable link notification across slot reset (Rajat Jain)
- Ensure very fast hotplug events are also processed (Rajat Jain)
- Add hotplug_lock to serialize hotplug events (Rajat Jain)
- Remove a non-existent card, regardless of "surprise" capability (Rajat Jain)
- Don't turn slot off when hot-added device already exists (Yijing Wang)
MSI
- Keep pci_enable_msi() documentation (Alexander Gordeev)
- ahci: Fix broken single MSI fallback (Alexander Gordeev)
- ahci, vfio: Use pci_enable_msi_range() (Alexander Gordeev)
- Check kmalloc() return value, fix leak of name (Greg Kroah-Hartman)
- Fix leak of msi_attrs (Greg Kroah-Hartman)
- Fix pci_msix_vec_count() htmldocs failure (Masanari Iida)
Virtualization
- Device-specific ACS support (Alex Williamson)
Freescale i.MX6
- Wait for retraining (Marek Vasut)
Marvell MVEBU
- Use Device ID and revision from underlying endpoint (Andrew Lunn)
- Fix incorrect size for PCI aperture resources (Jason Gunthorpe)
- Call request_resource() on the apertures (Jason Gunthorpe)
- Fix potential issue in range parsing (Jean-Jacques Hiblot)
Renesas R-Car
- Check platform_get_irq() return code (Ben Dooks)
- Add error interrupt handling (Ben Dooks)
- Fix bridge logic configuration accesses (Ben Dooks)
- Register each instance independently (Magnus Damm)
- Break out window size handling (Magnus Damm)
- Make the Kconfig dependencies more generic (Magnus Damm)
Synopsys DesignWare
- Fix RC BAR to be single 64-bit non-prefetchable memory (Mohit Kumar)
Miscellaneous
- Remove unused SR-IOV VF Migration support (Bjorn Helgaas)
- Enable INTx if BIOS left them disabled (Bjorn Helgaas)
- Fix hex vs decimal typo in cpqhpc_probe() (Dan Carpenter)
- Clean up par-arch object file list (Liviu Dudau)
- Set IORESOURCE_ROM_SHADOW only for the default VGA device (Sander Eikelenboom)
- ACPI, ARM, drm, powerpc, pcmcia, PCI: Use list_for_each_entry() for bus traversal (Yijing Wang)
- Fix pci_bus_b() build failure (Paul Gortmaker)"
* tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (108 commits)
Revert "[PATCH] Insert GART region into resource map"
PCI: Log IDE resource quirk in dmesg
PCI: Change pci_bus_alloc_resource() type_mask to unsigned long
PCI: Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region()
resources: Set type in __request_region()
PCI: Don't check resource_size() in pci_bus_alloc_resource()
s390/PCI: Use generic pci_enable_resources()
tile PCI RC: Use default pcibios_enable_device()
sparc/PCI: Use default pcibios_enable_device() (Leon only)
sh/PCI: Use default pcibios_enable_device()
microblaze/PCI: Use default pcibios_enable_device()
alpha/PCI: Use default pcibios_enable_device()
PCI: Add "weak" generic pcibios_enable_device() implementation
PCI: Don't enable decoding if BAR hasn't been assigned an address
PCI: Enable INTx in pci_reenable_device() only when MSI/MSI-X not enabled
PCI: Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit
PCI: Don't try to claim IORESOURCE_UNSET resources
PCI: Check IORESOURCE_UNSET before updating BAR
PCI: Don't clear IORESOURCE_UNSET when updating BAR
PCI: Mark resources as IORESOURCE_UNSET if we can't assign them
...
Conflicts:
arch/x86/include/asm/topology.h
drivers/ata/ahci.c
* Support for new AMD models, along with more graceful fallback for
unsupported hw.
* Bunch of fixes from SUSE accumulated from bug reports
* Misc other fixes and cleanups
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Merge tag 'edac_for_3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"A bunch of EDAC updates all over the place:
- Support for new AMD models, along with more graceful fallback for
unsupported hw.
- Bunch of fixes from SUSE accumulated from bug reports
- Misc other fixes and cleanups"
* tag 'edac_for_3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
amd64_edac: Add support for newer F16h models
i7core_edac: Drop unused variable
i82875p_edac: Drop redundant call to pci_get_device()
amd8111_edac: Fix leaks in probe error paths
e752x_edac: Drop pvt->bridge_ck
MCE, AMD: Fix decoding module loading on unsupported hw
i5100_edac: Remove an unneeded condition in i5100_init_csrows()
sb_edac: Degrade log level for device registration
amd64_edac: Fix logic to determine channel for F15 M30h processors
edac/85xx: Remove deprecated IRQF_DISABLED
i3200_edac: Add a missing pci_disable_device() on the exit path
i5400_edac: Disable device when unloading module
e752x_edac: Simplify call to pci_get_device()
Added support for LTM4676 to ltc2978 driver.
Converted several drivers to use devm_hwmon_device_register_with_groups.
Various cleanup in several drivers.
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
- New drivers for ADC128D818, LTC2945, LTC4260, and LTC4222
- Added support for LTM4676 to ltc2978 driver
- Converted several drivers to use devm_hwmon_device_register_with_groups
- Various cleanup in several drivers
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (36 commits)
hwmon: (pmbus/ltc2978) Add support for LTM4676
hwmon: (pmbus/ltc2978) Add new chip ID for LTC2974
hwmon: Do not accept invalid name attributes
hwmon: (max6639) Use SIMPLE_DEV_PM_OPS macro
hwmon: (lm95245) Make temp2_crit_hyst read-only
hwmon: (lm95245) Convert to use devm_hwmon_device_register_with_groups
hwmon: (lm95245) Drop useless debug message
hwmon: (lm95245) Fix hysteresis temperatures
hwmon: (max6639) Convert to use devm_hwmon_device_register_with_groups
hwmon: (max6639) Introduce local dev variable, and reduce noisiness
hwmon: (max6650) Introduce local 'dev' variable
hwmon: (max6650) Drop error message after memory allocation failures
hwmon: (max6650) Convert to use devm_hwmon_device_register_with_groups
hwmon: (max6650) Rearrange code to no longer require forward declarations
hwmon: (ltc4215) Convert to devm_hwmon_device_register_with_groups
hwmon: (coretemp) Convert to use devm_hwmon_device_register_with_groups
hwmon: (coretemp) Allocate platform data with devm_kzalloc
hwmon: (coretemp) Use sysfs_create_group to create sysfs attributes
hwmon: (ltc4245) Remove devicetree conditionals
hwmon: (ltc4245) Drop debug messages
...
Pull watchdog updates from Wim Van Sebroeck:
"This patchset contains:
- Various small clean-ups and fixes
- boot logic hanegs for mpc8xxx_wdt
- it87_wdt: Work around non-working CIR interrupts
- iTCO_wdt: Fix the parent device
- Kconfig dependencies
- simplification of code with devm_ioremap_resource() or
platform_driver_probe()
- conversion of xilinx watchdog driver to Generic watchdog Framework
- addition of extra functionality and devices for the xilinx watchdog
driver
- Addition of Tegra watchdog"
* git://www.linux-watchdog.org/linux-watchdog: (38 commits)
watchdog: Fix Elan SC520 dependencies
watchdog: ib700wdt: Use platform_driver_probe
watchdog: geodewdt: Use platform_driver_probe
watchdog: advantechwdt: Use platform_driver_probe
watchdog: acquirewdt: Use platform_driver_probe
watchdog: iTCO_wdt: Fix the parent device
watchdog: it87_wdt: Work around non-working CIR interrupts
watchdog: bcm281xx: Fix Kconfig dependency
watchdog: s3c2410_wdt: Check return value of clk_prepare_enable
watchdog: s3c2410_wdt: Remove unneeded initialization
watchdog: sunxi: Change compatibles
watchdog: orion: prepare new Dove DT Kconfig variable
watchdog: fix checkpatch warnings and error
watchdog: Add tegra watchdog
watchdog: xilinx: Remove no_timeout variable
watchdog: xilinx: Enable this driver for Zynq
watchdog: xilinx: Add missing binding
watchdog: xilinx: Use correct comment indentation
watchdog: xilinx: Use of_property_read_u32
watchdog: xilinx: Fix all printk messages
...
A busy release for both cleanups and new drivers this time along with
further factoring out of replicated code into the core:
- Provide support in the core for DMA mapping transfers - essentially
all drivers weren't implementing this properly, now there's no
excuse.
- Dual and quad mode support for spidev.
- Fix handling of cs_change in the generic implementation.
- Remove the S3C_DMA code from the s3c64xx driver now that all the
platforms using it have been converted to dmaengine.
- Lots of improvements to the Renesas SPI controllers.
- Drivers for Allwinner A10 and A31, Qualcomm QUP and Xylinx xtfpga.
- Removal of the bitrotted ti-ssp driver.
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Merge tag 'spi-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi Updates from Mark Brown:
"A busy release for both cleanups and new drivers this time along with
further factoring out of replicated code into the core:
- Provide support in the core for DMA mapping transfers - essentially
all drivers weren't implementing this properly, now there's no
excuse.
- Dual and quad mode support for spidev.
- Fix handling of cs_change in the generic implementation.
- Remove the S3C_DMA code from the s3c64xx driver now that all the
platforms using it have been converted to dmaengine.
- Lots of improvements to the Renesas SPI controllers.
- Drivers for Allwinner A10 and A31, Qualcomm QUP and Xylinx xtfpga.
- Removal of the bitrotted ti-ssp driver"
* tag 'spi-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (199 commits)
spi: Fix handling of cs_change in core implementation
spi: bitbang: Make spi_bitbang_stop() return void
spi: mpc52xx: Convert to use bits_per_word_mask
spi: omap-100k: Fix memory leak
spi: dw: Don't call kfree for memory allocated by devm_kzalloc
spi: fsl-dspi: Fix memory leak
spi: omap-uwire: add missing iounmap
spi: clps711x: Convert to use master->max_speed_hz
spi: clps711x: Enable driver compilation with COMPILE_TEST
spi: omap-uwire: Remove full duplex check
spi: Do not require a completion
spi: topcliff-pch: Transform noisy message to dev_vdbg
spi: coldfire-qspi: Simplify the code to set register bits for transfer speed
spi: bcm63xx: Remove unused define for PFX
spi: efm32: use $vendor,$device scheme for compatible string
spi: clps711x: Remove <mach/hardware.h> dependency
spi: topcliff-pch: Properly unregister platform devices on probe() error paths
spi: fsl-espi: Remove unused bits_per_word variable in fsl_espi_bufs
spi: altera: Remove the code to get unused platform_data
spi: fsl-lib: Fix memory leak of pinfo
...
This release has lots and lots of small cleanups and fixes in the
regulator subsystem, mainly cleaning up some bad patterns that got
duplicated in DT code, but otherwise very little of note outside
of the scope of the relevant drivers:
- Support for configuration of the initial state for gpio regulators
with multi-voltage support.
- Support for calling regulator_set_voltage() on fixed regulators.
- New drivers for Broadcom BCM590xx, Freescale pfuze200, Samsung S2MPA01 &
S2MPS11/4, some PWM controlled regulators found on some ST boards and
TI TPS65218.
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Merge tag 'regulator-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This release has lots and lots of small cleanups and fixes in the
regulator subsystem, mainly cleaning up some bad patterns that got
duplicated in DT code, but otherwise very little of note outside of
the scope of the relevant drivers:
- Support for configuration of the initial state for gpio regulators
with multi-voltage support.
- Support for calling regulator_set_voltage() on fixed regulators.
- New drivers for Broadcom BCM590xx, Freescale pfuze200, Samsung
S2MPA01 & S2MPS11/4, some PWM controlled regulators found on some
ST boards and TI TPS65218"
* tag 'regulator-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (154 commits)
regulator: aat2870: Use regulator_map_voltage_ascend
regulator: st-pwm: Convert to get_voltage_sel
regulator: Add new driver for ST's PWM controlled voltage regulators
regulator: bcm590xx: Remove **rdev from struct bcm590xx_reg
regulator: bcm590xx: Make the modalias matches the driver name
regulator: s5m8767: Convert to use regulator_[enable|disable|is_enabled]_regmap
regulator: db8500-prcmu: Set 1.8V as a fixed voltage for vsmps2
regulator: s2mps11: Add missing of_node_put
regulator: s2mps11: Use of_get_child_by_name
Documentation: mfd: s2mps11: Document support for S2MPS14
regulator: s2mps11: Add set_suspend_disable for S2MPS14
regulator: s2mps11: Add support for S2MPS14 regulators
regulator: max8660: Fix brace alignment
regulator: dbx500: use seq_puts() instead of seq_printf()
regulator: dbx500-prcmu: Silence checkpatch warnings
regulator: anatop: Remove checking control_reg in [set|get]_voltage_sel
regulator: max8952: Silence checkpatch warning
regulator: max8925: Silence checkpatch warning
regulator: max8660: Silence checkpatch warnings
regulator: arizona-ldo1: Correct default regulator init_data
...
Quite a busy release for regmap this time around, the standout changes
are:
- A real implementation of regmap_multi_write() and a bypassed version
of it for use by drivers doing patch-like things with more open
coding for surrounding startup sequences.
- Support fast_io on bulk operations.
- Support split device binding and map initialisation for use by
devices required in early init (mainly system controllers).
- Fixes for some operations on maps with strides set.
- Export the value parsing operations to help generic code built on top
of the API.
- Support for MMIO regmaps with non-32 bit register sizes.
plus a few smaller fixes.
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Merge tag 'regmap-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"Quite a busy release for regmap this time around, the standout changes
are:
- A real implementation of regmap_multi_write() and a bypassed
version of it for use by drivers doing patch-like things with more
open coding for surrounding startup sequences.
- Support fast_io on bulk operations.
- Support split device binding and map initialisation for use by
devices required in early init (mainly system controllers).
- Fixes for some operations on maps with strides set.
- Export the value parsing operations to help generic code built on
top of the API.
- Support for MMIO regmaps with non-32 bit register sizes.
plus a few smaller fixes"
* tag 'regmap-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (22 commits)
regmap: mmio: Add regmap_mmio_regbits_check.
regmap: mmio: Add support for 1/2/8 bytes wide register address.
regmap: mmio: add regmap_mmio_{regsize, count}_check.
regmap: cache: Don't attempt to sync non-writeable registers
regmap: cache: Step by stride in default sync
regmap: Fix possible sleep-in-atomic in regmap_bulk_write()
regmap: Ensure regmap_register_patch() is compatible with fast_io
regmap: irq: Set data pointer only on regmap_add_irq_chip success
regmap: Implementation for regmap_multi_reg_write
regmap: add regmap_parse_val api
mfd: arizona: Use new regmap features for manual register patch
regmap: Base regmap_register_patch on _regmap_multi_reg_write
regmap: Add bypassed version of regmap_multi_reg_write
regmap: Mark reg_defaults in regmap_multi_reg_write as const
regmap: fix coccinelle warnings
regmap: Check stride of register patch as we register it
regmap: Clean up _regmap_update_bits()
regmap: Separate regmap dev initialization
regmap: Check readable regs in _regmap_read
regmap: irq: Remove domain on exit
...
functionality this time, just incremental driver updates:
- A large refactoring of the MVEBU (Marvell) driver.
- A large refactoring of the Tegra (nVidia) driver.
- GPIO interrupt including soft edges support in the
STi driver.
- Misc updates to PFC (Renesas), AT91, ADI2 (Blackfin),
pinctrl-single, sirf (CSR), msm (Qualcomm), Exynos (Samsung),
sunxi (AllWinner), i.MX (Freescale), Baytrail.
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Merge tag 'pinctrl-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control bulk changes from Linus Walleij:
"Pin control bulk changes for the v3.15 series, no new core
functionality this time, just incremental driver updates:
- A large refactoring of the MVEBU (Marvell) driver.
- A large refactoring of the Tegra (nVidia) driver.
- GPIO interrupt including soft edges support in the STi driver.
- Misc updates to PFC (Renesas), AT91, ADI2 (Blackfin),
pinctrl-single, sirf (CSR), msm (Qualcomm), Exynos (Samsung), sunxi
(AllWinner), i.MX (Freescale), Baytrail"
* tag 'pinctrl-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits)
pinctrl: tegra: add some missing Tegra114 entries
pinctrl: tegra: fix some mistakes in Tegra124
pinctrl: msm: fix up out-of-order merge conflict
pinctrl: st: Fix error check for of_irq_to_resource usage
pinctrl: tegra: consistency cleanup
pinctrl: tegra: dynamically calculate function list of groups
pinctrl: tegra: init Tegra20/30 at module_init time
pinctrl: st: Use ARRAY_SIZE instead of raw value for number of delays
pinctrl: st: add pinctrl support for the STiH407 SoC
pinctrl: st: Enhance the controller to manage unavailable registers
pinctrl: msm: Simplify msm_config_reg() and callers
pinctrl: msm: Remove impossible WARN_ON()s
pinctrl: msm: Replace lookup tables with math
pinctrl: msm: Drop OF_IRQ dependency
pinctrl: msm: Drop unused includes
pinctrl: msm: Check for ngpios > MAX_NR_GPIO
pinctrl: msm: Silence recursive lockdep warning
pinctrl: mvebu: silence WARN to dev_warn
pinctrl: msm: drop wake_irqs bitmap
pinctrl-baytrail: add function mux checking in gpio pin request
...
* pm-cpufreq:
cpufreq: Make cpufreq_notify_transition & cpufreq_notify_post_transition static
cpufreq: Convert existing drivers to use cpufreq_freq_transition_{begin|end}
cpufreq: Make sure frequency transitions are serialized
intel_pstate: Use del_timer_sync in intel_pstate_cpu_stop
cpufreq: resume drivers before enabling governors
* acpica:
ACPICA: Enable auto-serialization as a default kernel behavior.
ACPICA: Ignore sync_level for methods that have been auto-serialized.
ACPICA: Add additional named objects for the auto-serialize method scan.
ACPICA: Add auto-serialization support for ill-behaved control methods.
ACPICA: Remove global option to serialize all control methods.
- Device PM QoS support for latency tolerance constraints on systems with
hardware interfaces allowing such constraints to be specified. That is
necessary to prevent hardware-driven power management from becoming
overly aggressive on some systems and to prevent power management
features leading to excessive latencies from being used in some cases.
- Consolidation of the handling of ACPI hotplug notifications for device
objects. This causes all device hotplug notifications to go through
the root notify handler (that was executed for all of them anyway
before) that propagates them to individual subsystems, if necessary,
by executing callbacks provided by those subsystems (those callbacks
are associated with struct acpi_device objects during device
enumeration). As a result, the code in question becomes both smaller
in size and more straightforward and all of those changes should not
affect users.
- ACPICA update, including fixes related to the handling of _PRT in cases
when it is broken and the addition of "Windows 2013" to the list of
supported "features" for _OSI (which is necessary to support systems
that work incorrectly or don't even boot without it). Changes from
Bob Moore and Lv Zheng.
- Consolidation of ACPI _OST handling from Jiang Liu.
- ACPI battery and AC fixes allowing unusual system configurations to
be handled by that code from Alexander Mezin.
- New device IDs for the ACPI LPSS driver from Chiau Ee Chew.
- ACPI fan and thermal optimizations related to system suspend and resume
from Aaron Lu.
- Cleanups related to ACPI video from Jean Delvare.
- Assorted ACPI fixes and cleanups from Al Stone, Hanjun Guo, Lan Tianyu,
Paul Bolle, Tomasz Nowicki.
- Intel RAPL (Running Average Power Limits) driver cleanups from Jacob Pan.
- intel_pstate fixes and cleanups from Dirk Brandewie.
- cpufreq fixes related to system suspend/resume handling from Viresh Kumar.
- cpufreq core fixes and cleanups from Viresh Kumar, Stratos Karafotis,
Saravana Kannan, Rashika Kheria, Joe Perches.
- cpufreq drivers updates from Viresh Kumar, Zhuoyu Zhang, Rob Herring.
- cpuidle fixes related to the menu governor from Tuukka Tikkanen.
- cpuidle fix related to coupled CPUs handling from Paul Burton.
- Asynchronous execution of all device suspend and resume callbacks,
except for ->prepare and ->complete, during system suspend and resume
from Chuansheng Liu.
- Delayed resuming of runtime-suspended devices during system suspend for
the PCI bus type and ACPI PM domain.
- New set of PM helper routines to allow device runtime PM callbacks to
be used during system suspend and resume more easily from Ulf Hansson.
- Assorted fixes and cleanups in the PM core from Geert Uytterhoeven,
Prabhakar Lad, Philipp Zabel, Rashika Kheria, Sebastian Capella.
- devfreq fix from Saravana Kannan.
/
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Merge tag 'pm+acpi-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
"The majority of this material spent some time in linux-next, some of
it even several weeks. There are a few relatively fresh commits in
it, but they are mostly fixes and simple cleanups.
ACPI took the lead this time, both in terms of the number of commits
and the number of modified lines of code, cpufreq follows and there
are a few changes in the PM core and in cpuidle too.
A new feature that already got some LWN.net's attention is the device
PM QoS extension allowing latency tolerance requirements to be
propagated from leaf devices to their ancestors with hardware
interfaces for specifying latency tolerance. That should help systems
with hardware-driven power management to avoid going too far with it
in cases when there are latency tolerance constraints.
There also are some significant changes in the ACPI core related to
the way in which hotplug notifications are handled. They affect PCI
hotplug (ACPIPHP) and the ACPI dock station code too. The bottom line
is that all those notification now go through the root notify handler
and are propagated to the interested subsystems by means of callbacks
instead of having to install a notify handler for each device object
that we can potentially get hotplug notifications for.
In addition to that ACPICA will now advertise "Windows 2013"
compatibility for _OSI, because some systems out there don't work
correctly if that is not done (some of them don't even boot).
On the system suspend side of things, all of the device suspend and
resume callbacks, except for ->prepare() and ->complete(), are now
going to be executed asynchronously as that turns out to speed up
system suspend and resume on some platforms quite significantly and we
have a few more optimizations in that area.
Apart from that, there are some new device IDs and fixes and cleanups
all over. In particular, the system suspend and resume handling by
cpufreq should be improved and the cpuidle menu governor should be a
bit more robust now.
Specifics:
- Device PM QoS support for latency tolerance constraints on systems
with hardware interfaces allowing such constraints to be specified.
That is necessary to prevent hardware-driven power management from
becoming overly aggressive on some systems and to prevent power
management features leading to excessive latencies from being used
in some cases.
- Consolidation of the handling of ACPI hotplug notifications for
device objects. This causes all device hotplug notifications to go
through the root notify handler (that was executed for all of them
anyway before) that propagates them to individual subsystems, if
necessary, by executing callbacks provided by those subsystems
(those callbacks are associated with struct acpi_device objects
during device enumeration). As a result, the code in question
becomes both smaller in size and more straightforward and all of
those changes should not affect users.
- ACPICA update, including fixes related to the handling of _PRT in
cases when it is broken and the addition of "Windows 2013" to the
list of supported "features" for _OSI (which is necessary to
support systems that work incorrectly or don't even boot without
it). Changes from Bob Moore and Lv Zheng.
- Consolidation of ACPI _OST handling from Jiang Liu.
- ACPI battery and AC fixes allowing unusual system configurations to
be handled by that code from Alexander Mezin.
- New device IDs for the ACPI LPSS driver from Chiau Ee Chew.
- ACPI fan and thermal optimizations related to system suspend and
resume from Aaron Lu.
- Cleanups related to ACPI video from Jean Delvare.
- Assorted ACPI fixes and cleanups from Al Stone, Hanjun Guo, Lan
Tianyu, Paul Bolle, Tomasz Nowicki.
- Intel RAPL (Running Average Power Limits) driver cleanups from
Jacob Pan.
- intel_pstate fixes and cleanups from Dirk Brandewie.
- cpufreq fixes related to system suspend/resume handling from Viresh
Kumar.
- cpufreq core fixes and cleanups from Viresh Kumar, Stratos
Karafotis, Saravana Kannan, Rashika Kheria, Joe Perches.
- cpufreq drivers updates from Viresh Kumar, Zhuoyu Zhang, Rob
Herring.
- cpuidle fixes related to the menu governor from Tuukka Tikkanen.
- cpuidle fix related to coupled CPUs handling from Paul Burton.
- Asynchronous execution of all device suspend and resume callbacks,
except for ->prepare and ->complete, during system suspend and
resume from Chuansheng Liu.
- Delayed resuming of runtime-suspended devices during system suspend
for the PCI bus type and ACPI PM domain.
- New set of PM helper routines to allow device runtime PM callbacks
to be used during system suspend and resume more easily from Ulf
Hansson.
- Assorted fixes and cleanups in the PM core from Geert Uytterhoeven,
Prabhakar Lad, Philipp Zabel, Rashika Kheria, Sebastian Capella.
- devfreq fix from Saravana Kannan"
* tag 'pm+acpi-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (162 commits)
PM / devfreq: Rewrite devfreq_update_status() to fix multiple bugs
PM / sleep: Correct whitespace errors in <linux/pm.h>
intel_pstate: Set core to min P state during core offline
cpufreq: Add stop CPU callback to cpufreq_driver interface
cpufreq: Remove unnecessary braces
cpufreq: Fix checkpatch errors and warnings
cpufreq: powerpc: add cpufreq transition latency for FSL e500mc SoCs
MAINTAINERS: Reorder maintainer addresses for PM and ACPI
PM / Runtime: Update runtime_idle() documentation for return value meaning
video / output: Drop display output class support
fujitsu-laptop: Drop unneeded include
acer-wmi: Stop selecting VIDEO_OUTPUT_CONTROL
ACPI / gpu / drm: Stop selecting VIDEO_OUTPUT_CONTROL
ACPI / video: fix ACPI_VIDEO dependencies
cpufreq: remove unused notifier: CPUFREQ_{SUSPENDCHANGE|RESUMECHANGE}
cpufreq: Do not allow ->setpolicy drivers to provide ->target
cpufreq: arm_big_little: set 'physical_cluster' for each CPU
cpufreq: arm_big_little: make vexpress driver depend on bL core driver
ACPI / button: Add ACPI Button event via netlink routine
ACPI: Remove duplicate definitions of PREFIX
...
Pull irq code updates from Thomas Gleixner:
"The irq department proudly presents:
- Another tree wide sweep of irq infrastructure abuse. Clear winner
of the trainwreck engineering contest was:
#include "../../../kernel/irq/settings.h"
- Tree wide update of irq_set_affinity() callbacks which miss a cpu
online check when picking a single cpu out of the affinity mask.
- Tree wide consolidation of interrupt statistics.
- Updates to the threaded interrupt infrastructure to allow explicit
wakeup of the interrupt thread and a variant of synchronize_irq()
which synchronizes only the hard interrupt handler. Both are
needed to replace the homebrewn thread handling in the mmc/sdhci
code.
- New irq chip callbacks to allow proper support for GPIO based irqs.
The GPIO based interrupts need to request/release GPIO resources
from request/free_irq.
- A few new ARM interrupt chips. No revolutionary new hardware, just
differently wreckaged variations of the scheme.
- Small improvments, cleanups and updates all over the place"
I was hoping that that trainwreck engineering contest was a April Fools'
joke. But no.
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (68 commits)
irqchip: sun7i/sun6i: Disable NMI before registering the handler
ARM: sun7i/sun6i: dts: Fix IRQ number for sun6i NMI controller
ARM: sun7i/sun6i: irqchip: Update the documentation
ARM: sun7i/sun6i: dts: Add NMI irqchip support
ARM: sun7i/sun6i: irqchip: Add irqchip driver for NMI controller
genirq: Export symbol no_action()
arm: omap: Fix typo in ams-delta-fiq.c
m68k: atari: Fix the last kernel_stat.h fallout
irqchip: sun4i: Simplify sun4i_irq_ack
irqchip: sun4i: Use handle_fasteoi_irq for all interrupts
genirq: procfs: Make smp_affinity values go+r
softirq: Add linux/irq.h to make it compile again
m68k: amiga: Add linux/irq.h to make it compile again
irqchip: sun4i: Don't ack IRQs > 0, fix acking of IRQ 0
irqchip: sun4i: Fix a comment about mask register initialization
irqchip: sun4i: Fix irq 0 not working
genirq: Add a new IRQCHIP_EOI_THREADED flag
genirq: Document IRQCHIP_ONESHOT_SAFE flag
ARM: sunxi: dt: Convert to the new irq controller compatibles
irqchip: sunxi: Change compatibles
...
Pull timer changes from Thomas Gleixner:
"This assorted collection provides:
- A new timer based timer broadcast feature for systems which do not
provide a global accessible timer device. That allows those
systems to put CPUs into deep idle states where the per cpu timer
device stops.
- A few NOHZ_FULL related improvements to the timer wheel
- The usual updates to timer devices found in ARM SoCs
- Small improvements and updates all over the place"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
tick: Remove code duplication in tick_handle_periodic()
tick: Fix spelling mistake in tick_handle_periodic()
x86: hpet: Use proper destructor for delayed work
workqueue: Provide destroy_delayed_work_on_stack()
clocksource: CMT, MTU2, TMU and STI should depend on GENERIC_CLOCKEVENTS
timer: Remove code redundancy while calling get_nohz_timer_target()
hrtimer: Rearrange comments in the order struct members are declared
timer: Use variable head instead of &work_list in __run_timers()
clocksource: exynos_mct: silence a static checker warning
arm: zynq: Add support for cpufreq
arm: zynq: Don't use arm_global_timer with cpufreq
clocksource/cadence_ttc: Overhaul clocksource frequency adjustment
clocksource/cadence_ttc: Call clockevents_update_freq() with IRQs enabled
clocksource: Add Kconfig entries for CMT, MTU2, TMU and STI
sh: Remove Kconfig entries for TMU, CMT and MTU2
ARM: shmobile: Remove CMT, TMU and STI Kconfig entries
clocksource: armada-370-xp: Use atomic access for shared registers
clocksource: orion: Use atomic access for shared registers
clocksource: timer-keystone: Delete unnecessary variable
clocksource: timer-keystone: introduce clocksource driver for Keystone
...
Pull x86 iommu quirk fix from Thomas Gleixner:
"A quirk for the iommu quirk to include silicon which was assumed not
to be out in the wild.
This time with the correct logic applied"
* 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Adjust irq remapping quirk for older revisions of 5500/5520 chipsets
Pull x86 threadinfo changes from Ingo Molnar:
"The main change here is the consolidation/unification of 32 and 64 bit
thread_info handling methods, from Steve Rostedt"
* 'x86-threadinfo-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, threadinfo: Redo "x86: Use inline assembler to get sp"
x86: Clean up dumpstack_64.c code
x86: Keep thread_info on thread stack in x86_32
x86: Prepare removal of previous_esp from i386 thread_info structure
x86: Nuke GET_THREAD_INFO_WITH_ESP() macro for i386
x86: Nuke the supervisor_stack field in i386 thread_info
Pull timer updates from Ingo Molnar:
"The main purpose is to fix a full dynticks bug related to
virtualization, where steal time accounting appears to be zero in
/proc/stat even after a few seconds of competing guests running busy
loops in a same host CPU. It's not a regression though as it was
there since the beginning.
The other commits are preparatory work to fix the bug and various
cleanups"
* 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
arch: Remove stub cputime.h headers
sched: Remove needless round trip nsecs <-> tick conversion of steal time
cputime: Fix jiffies based cputime assumption on steal accounting
cputime: Bring cputime -> nsecs conversion
cputime: Default implementation of nsecs -> cputime conversion
cputime: Fix nsecs_to_cputime() return type cast
Pull x86 cpufeature update from Ingo Molnar:
"Two refinements to clflushopt support"
* 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, cpufeature: If we disable CLFLUSH, we should disable CLFLUSHOPT
x86, cpufeature: Rename X86_FEATURE_CLFLSH to X86_FEATURE_CLFLUSH
Pull x86 reboot changes from Ingo Molnar:
"Refine the reboot logic around the CF9 and EFI reboot methods, to make
it more robust. The expectation is for no working system to break,
and for a couple of reboot-force systems to start rebooting
automatically again"
* 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, reboot: Only use CF9_COND automatically, not CF9
x86, reboot: Add EFI and CF9 reboot methods into the default list
Pull x86 mm change from Ingo Molnar:
"A micro-optimization for acpi_numa_slit_init()"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Avoid duplicated pxm_to_node() calls
Pull AVR32 updates from Hans-Christian Egtvedt.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32:
avr32: replace simple_strtoul() with kstrtoul()
arch/avr32/mm/cache.c: export symbol flush_icache_range() for module using
avr32: remove cpu_data macro to fix compiles
simple_strtoul() is marked for obsoletion; use the newer and more
pleasant kstrtoul() in its place.
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Pull libata updates from Tejun Heo:
"A lot of activities on libata side this time.
- A lot of changes around ahci. Various embedded platforms are
implementing ahci controllers. Some were built atop ahci_platform,
others were doing their own things. Hans made some structural
changes to libahci and librarized ahci_platform so that ahci
platform drivers can share more common code. A couple platform
drivers are added on top of that and several are added to replace
older drivers which were doing their own things (older ones are
scheduled to be removed).
- Dan finishes the patchset to make libata PM operations
asynchronous. Combined with one patch being routed through scsi,
this should speed resume measurably.
- Various fixes and cleanups from Bartlomiej and others"
* 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (61 commits)
ata: fix Marvell SATA driver dependencies
ata: fix ARASAN CompactFlash PATA driver dependencies
ata: remove superfluous casts
ata: sata_highbank: remove superfluous cast
ata: fix Calxeda Highbank SATA driver dependencies
ata: fix R-Car SATA driver dependencies
ARM: davinci: da850: update SATA AHCI support
ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller
ata: move library code from ahci_platform.c to libahci_platform.c
ata: ahci_platform: fix ahci_platform_data->suspend method handling
libata: remove unused ata_sas_port_async_resume() stub
libata.h: add stub for ata_sas_port_resume
libata: async resume
libata, libsas: kill pm_result and related cleanup
ata: Fix compiler warning with APM X-Gene host controller driver
arm64: Add APM X-Gene SoC AHCI SATA host controller DTS entries
ata: Add APM X-Gene SoC AHCI SATA host controller driver
Documentation: Add documentation for the APM X-Gene SoC SATA host controller DTS binding
arm64: Add APM X-Gene SoC 15Gbps Multi-purpose PHY DTS entries
ata: ahci_sunxi: fix code formatting
...
Vaidyanathan Srinivasan