Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The command "cpupower frequency-info" can be used when using cpupower to
monitor and test processor behaviour to determine if the processor is
behaving as expected. This data can be compared to the output of
/proc/cpuinfo or the output of
/sys/devices/system/cpu/cpuX/cpufreq/scaling_available_frequencies
to determine if the cpu is in an expected state.
When doing this I noticed comparison test failures due to the way the
data is displayed in cpupower. For example,
[root@intel-s3e37-02 cpupower]# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
2262000 2261000 2128000 1995000 1862000 1729000 1596000 1463000 1330000
1197000 1064000
compared to
[root@intel-s3e37-02 cpupower]# cpupower frequency-info
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.06 GHz - 2.26 GHz
available frequency steps: 2.26 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz, 1.06 GHz
available cpufreq governors: conservative, userspace, powersave, ondemand, performance
current policy: frequency should be within 1.06 GHz and 2.26 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.26 GHz (asserted by call to hardware).
boost state support:
Supported: yes
Active: yes
shows very different values for the available frequency steps. The cpupower
output rounds off values at 2 decimal points and this causes problems with
test scripts. For example, with the data above,
1.064 is 1.06
1.197 is 1.20
1.596 is 1.60
1.995 is 2.00
2.128 is 2.13
and most confusingly,
2.261 is 2.26
2.262 is 2.26
Truncating these values serves no real purpose other than making the output
pretty. Since the default has been to round off these values I am adding
a -n/--no-rounding option to the cpupower utility that will display the
data without rounding off the still significant digits.
After patch,
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.000 us.
hardware limits: 1.064000 GHz - 2.262000 GHz
available frequency steps: 2.262000 GHz, 2.261000 GHz, 2.128000 GHz, 1.995000 GHz, 1.862000 GHz, 1.729000 GHz, 1.596000 GHz, 1.463000 GHz, 1.330000 GHz, 1.197000 GHz, 1.064000 GHz
available cpufreq governors: conservative, userspace, powersave, ondemand, performance
current policy: frequency should be within 1.064000 GHz and 2.262000 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.262000 GHz (asserted by call to hardware).
boost state support:
Supported: yes
Active: yes
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The Intel 64 and IA-32 Architectures Software Developer's Manual says
that TjMax is stored in bits 23:16 of MSR_TEMPERATURE TARGET (0x1a2).
That's 8 bits, not 7, so it must be masked with 0xFF rather than 0x7F.
The manual has no mention of which values should be considered valid,
which kind of implies that they all are. Arbitrarily discarding values
outside a specific range is wrong. The upper range check had to be
fixed recently (commit 144b44b1) and the lower range check is just as
wrong. See bug #75071:
https://bugzilla.kernel.org/show_bug.cgi?id=75071
There are many Xeon processor series with TjMax of 70, 71 or 80
degrees Celsius, way below the arbitrary 85 degrees Celsius limit.
There may be other (past or future) models with even lower limits.
So drop this arbitrary check. The only value that would be clearly
invalid is 0. Everything else should be accepted.
After these changes, turbostat is aligned with what the coretemp
driver does.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Len Brown <len.brown@intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- only an email address change to the MAINTAINERS file
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=JLHy
-----END PGP SIGNATURE-----
Merge tag 'locks-v3.15-3' of git://git.samba.org/jlayton/linux
Pull file locking change from Jeff Layton:
"Only an email address change to the MAINTAINERS file"
* tag 'locks-v3.15-3' of git://git.samba.org/jlayton/linux:
MAINTAINERS: email address change for Jeff Layton
arm64 move of of_clk_init() call in a previous commit
- Default DMA ops changed to non-coherent to preserve compatibility with
32-bit ARM DT files. The "dma-coherent" property can be used to
explicitly mark a device coherent. The Applied Micro DT file has been
updated to avoid DMA cache maintenance for the X-Gene SATA controller
(the only arm64 related driver with such assumption in -rc mainline)
- Fixmap correction for earlyprintk
- kern_addr_valid() fix for huge pages
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)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=kRLA
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
"These are mostly arm64 fixes with an additional arm(64) platform fix
for the initialisation of vexpress clocks (the latter only affecting
arm64; the arch/arm64 code is SoC agnostic and does not rely on early
SoC-specific calls)
- vexpress platform clocks initialisation moved earlier following the
arm64 move of of_clk_init() call in a previous commit
- Default DMA ops changed to non-coherent to preserve compatibility
with 32-bit ARM DT files. The "dma-coherent" property can be used
to explicitly mark a device coherent. The Applied Micro DT file
has been updated to avoid DMA cache maintenance for the X-Gene SATA
controller (the only arm64 related driver with such assumption in
-rc mainline)
- Fixmap correction for earlyprintk
- kern_addr_valid() fix for huge pages"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
vexpress: Initialise the sysregs before setting up the clocks
arm64: Mark the Applied Micro X-Gene SATA controller as DMA coherent
arm64: Use bus notifiers to set per-device coherent DMA ops
arm64: Make default dma_ops to be noncoherent
arm64: fixmap: fix missing sub-page offset for earlyprintk
arm64: Fix for the arm64 kern_addr_valid() function
This is two patches both fixing bugs in drivers (virtio-scsi and mpt2sas)
causing an oops in certain circumstances.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJTZdBVAAoJEDeqqVYsXL0MIYMIAI/rDIV/MeF0OZd3nzTaEAIG
i8HPPgBTmSKmK3q04Pjjtc1CHW3unH6cr1tG1L4r1tyoxwcnZ0+x87fi3KcLIpBb
G6o/31QpniNQ/3LNdwCHtyl760XVZhWz6XpJ/NCmWuYeKx1RmT3W+ggnXD+fznNs
3h347rIrr4efkgRJIzzfi6pYa55VmvI6M7J/RpXmMg/IcfF+GBJfyEp0AsmIoYno
YVwFBB8h9cVsgvhROn8i1pYq1YOf9jo298LLMULMIvu9iZWHp57GOzA4HzyEa9kp
T1I6AzwJGbmirJsm0yD1hKgJns3Za+ZA3FeP5qQ7BX38YI7EKkkd+qtCMzT1YfY=
=whLk
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is two patches both fixing bugs in drivers (virtio-scsi and
mpt2sas) causing an oops in certain circumstances"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] virtio-scsi: Skip setting affinity on uninitialized vq
[SCSI] mpt2sas: Don't disable device twice at suspend.
Following arm64 commit bc3ee18a7a (arm64: init: Move of_clk_init to
time_init()), vexpress_osc_of_setup() is called via of_clk_init() long
before initcalls are issued. Initialising the vexpress oscillators
requires the vespress sysregs to be already initialised, so this patch
adds an explicit call to vexpress_sysreg_of_early_init() in vexpress
oscillator setup function.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Cc: Mike Turquette <mturquette@linaro.org>
Since the default DMA ops for arm64 are non-coherent, mark the X-Gene
controller explicitly as dma-coherent to avoid additional cache
maintenance.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Loc Ho <lho@apm.com>
Recently, the default DMA ops have been changed to non-coherent for
alignment with 32-bit ARM platforms (and DT files). This patch adds bus
notifiers to be able to set the coherent DMA ops (with no cache
maintenance) for devices explicitly marked as coherent via the
"dma-coherent" DT property.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Currently arm64 dma_ops is by default made coherent which makes it
opposite in default policy from arm.
Make default dma_ops to be noncoherent (same as arm), as currently there
aren't any dma-capable drivers which assumes coherent ops
Signed-off-by: Ritesh Harjani <ritesh.harjani@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Commit d57c33c5da (add generic fixmap.h) added (among other
similar things) set_fixmap_io to deal with early ioremap of devices.
More recently, commit bf4b558eba (arm64: add early_ioremap support)
converted the arm64 earlyprintk to use set_fixmap_io. A side effect of
this conversion is that my virtual machines have stopped booting when
I pass "earlyprintk=uart8250-8bit,0x3f8" to the guest kernel.
Turns out that the new earlyprintk code doesn't care at all about
sub-page offsets, and just assumes that the earlyprintk device will
be page-aligned. Obviously, that doesn't play well with the above example.
Further investigation shows that set_fixmap_io uses __set_fixmap instead
of __set_fixmap_offset. A fix is to introduce a set_fixmap_offset_io that
uses the latter, and to remove the superflous call to fix_to_virt
(which only returns the value that set_fixmap_io has already given us).
With this applied, my VMs are back in business. Tested on a Cortex-A57
platform with kvmtool as platform emulation.
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Salter <msalter@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Fix for the arm64 kern_addr_valid() function to recognize
virtual addresses in the kernel logical memory map. The
function fails as written because it does not check whether
the addresses in that region are mapped at the pmd level to
2MB or 512MB pages, continues the page table walk to the
pte level, and issues a garbage value to pfn_valid().
Tested on 4K-page and 64K-page kernels.
Signed-off-by: Dave Anderson <anderson@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Pull irq fixes from Thomas Gleixner:
"This udpate delivers:
- A fix for dynamic interrupt allocation on x86 which is required to
exclude the GSI interrupts from the dynamic allocatable range.
This was detected with the newfangled tablet SoCs which have GPIOs
and therefor allocate a range of interrupts. The MSI allocations
already excluded the GSI range, so we never noticed before.
- The last missing set_irq_affinity() repair, which was delayed due
to testing issues
- A few bug fixes for the armada SoC interrupt controller
- A memory allocation fix for the TI crossbar interrupt controller
- A trivial kernel-doc warning fix"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: irq-crossbar: Not allocating enough memory
irqchip: armanda: Sanitize set_irq_affinity()
genirq: x86: Ensure that dynamic irq allocation does not conflict
linux/interrupt.h: fix new kernel-doc warnings
irqchip: armada-370-xp: Fix releasing of MSIs
irqchip: armada-370-xp: implement the ->check_device() msi_chip operation
irqchip: armada-370-xp: fix invalid cast of signed value into unsigned variable
Pull timer fixes from Thomas Gleixner:
"This update brings along:
- Two fixes for long standing bugs in the hrtimer code, one which
prevents remote enqueuing and the other preventing arbitrary delays
after a interrupt hang was detected
- A fix in the timer wheel which prevents math overflow
- A fix for a long standing issue with the architected ARM timer
related to the C3STOP mechanism.
- A trivial compile fix for nspire SoC clocksource"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timer: Prevent overflow in apply_slack
hrtimer: Prevent remote enqueue of leftmost timers
hrtimer: Prevent all reprogramming if hang detected
clocksource: nspire: Fix compiler warning
clocksource: arch_arm_timer: Fix age-old arch timer C3STOP detection issue
rcu_dereference(). It required rcu_dereference_sched() instead of
the normal rcu_dereference(). It produces a nasty RCU lockdep splat
due to the incorrect rcu notation.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJTZF+rAAoJEKQekfcNnQGufrIH/1Wa1hzNoq8n1JmejythN6Yn
lQ9RvD0NFrKcO3wd8XyYUoRQXNZ0RJ6JJzERyNygVWp8zLF9TifywaFCZpyNEH91
58qidUdAEBaOMHB6WAVVg056kSC7QG5+kRzgFKktQNDac29Ykw2hJBrFoAAlkoi2
7slBOpnRnpgGn6cRU7hjCbaZs/RvVOJ9J00JeOWFFcM8vFcKMNZBypnwSpRCwc51
ZU8O4UhewqwXuTL35Lrnoaf6LZltkaudbRsc4/xgidT+S6djXU+6vnboerdBajh9
aWCNcI8WVV6UXkJ7X/Ft7i7gV181iCvU+vUVk9REXatEgH1RBTJlMhwgqH4fiLM=
=vEMu
-----END PGP SIGNATURE-----
Merge tag 'trace-fixes-v3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"This is a small fix where the trigger code used the wrong
rcu_dereference(). It required rcu_dereference_sched() instead of the
normal rcu_dereference(). It produces a nasty RCU lockdep splat due
to the incorrect rcu notation"
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
* tag 'trace-fixes-v3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Use rcu_dereference_sched() for trace event triggers
As trace event triggers are now part of the mainline kernel, I added
my trace event trigger tests to my test suite I run on all my kernels.
Now these tests get run under different config options, and one of
those options is CONFIG_PROVE_RCU, which checks under lockdep that
the rcu locking primitives are being used correctly. This triggered
the following splat:
===============================
[ INFO: suspicious RCU usage. ]
3.15.0-rc2-test+ #11 Not tainted
-------------------------------
kernel/trace/trace_events_trigger.c:80 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
rcu_scheduler_active = 1, debug_locks = 0
4 locks held by swapper/1/0:
#0: ((&(&j_cdbs->work)->timer)){..-...}, at: [<ffffffff8104d2cc>] call_timer_fn+0x5/0x1be
#1: (&(&pool->lock)->rlock){-.-...}, at: [<ffffffff81059856>] __queue_work+0x140/0x283
#2: (&p->pi_lock){-.-.-.}, at: [<ffffffff8106e961>] try_to_wake_up+0x2e/0x1e8
#3: (&rq->lock){-.-.-.}, at: [<ffffffff8106ead3>] try_to_wake_up+0x1a0/0x1e8
stack backtrace:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.15.0-rc2-test+ #11
Hardware name: /DG965MQ, BIOS MQ96510J.86A.0372.2006.0605.1717 06/05/2006
0000000000000001 ffff88007e083b98 ffffffff819f53a5 0000000000000006
ffff88007b0942c0 ffff88007e083bc8 ffffffff81081307 ffff88007ad96d20
0000000000000000 ffff88007af2d840 ffff88007b2e701c ffff88007e083c18
Call Trace:
<IRQ> [<ffffffff819f53a5>] dump_stack+0x4f/0x7c
[<ffffffff81081307>] lockdep_rcu_suspicious+0x107/0x110
[<ffffffff810ee51c>] event_triggers_call+0x99/0x108
[<ffffffff810e8174>] ftrace_event_buffer_commit+0x42/0xa4
[<ffffffff8106aadc>] ftrace_raw_event_sched_wakeup_template+0x71/0x7c
[<ffffffff8106bcbf>] ttwu_do_wakeup+0x7f/0xff
[<ffffffff8106bd9b>] ttwu_do_activate.constprop.126+0x5c/0x61
[<ffffffff8106eadf>] try_to_wake_up+0x1ac/0x1e8
[<ffffffff8106eb77>] wake_up_process+0x36/0x3b
[<ffffffff810575cc>] wake_up_worker+0x24/0x26
[<ffffffff810578bc>] insert_work+0x5c/0x65
[<ffffffff81059982>] __queue_work+0x26c/0x283
[<ffffffff81059999>] ? __queue_work+0x283/0x283
[<ffffffff810599b7>] delayed_work_timer_fn+0x1e/0x20
[<ffffffff8104d3a6>] call_timer_fn+0xdf/0x1be^M
[<ffffffff8104d2cc>] ? call_timer_fn+0x5/0x1be
[<ffffffff81059999>] ? __queue_work+0x283/0x283
[<ffffffff8104d823>] run_timer_softirq+0x1a4/0x22f^M
[<ffffffff8104696d>] __do_softirq+0x17b/0x31b^M
[<ffffffff81046d03>] irq_exit+0x42/0x97
[<ffffffff81a08db6>] smp_apic_timer_interrupt+0x37/0x44
[<ffffffff81a07a2f>] apic_timer_interrupt+0x6f/0x80
<EOI> [<ffffffff8100a5d8>] ? default_idle+0x21/0x32
[<ffffffff8100a5d6>] ? default_idle+0x1f/0x32
[<ffffffff8100ac10>] arch_cpu_idle+0xf/0x11
[<ffffffff8107b3a4>] cpu_startup_entry+0x1a3/0x213
[<ffffffff8102a23c>] start_secondary+0x212/0x219
The cause is that the triggers are protected by rcu_read_lock_sched() but
the data is dereferenced with rcu_dereference() which expects it to
be protected with rcu_read_lock(). The proper reference should be
rcu_dereference_sched().
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
- There are two bugs in the ACPI PNP core that cause errors to
be returned if optional ACPI methods are not present. After
an ACPI core change made in 3.14 one of those errors leads
to serial port suspend failures on some systems. Fix from
Rafael J Wysocki.
- A recently added PNP quirk related to Intel chipsets intorduced
a build error in unusual configurations (PNP without PCI). Fix
from Bjorn Helgaas.
- An ACPI EC workaround related to system suspend on Samsung machines
added in 3.14 introduced a race causing some valid EC events to be
discarded. Fix from Kieran Clancy.
- The acpi-cpufreq driver fails to load on some systems after a 3.14
commit related to APIC ID parsing that overlooked one corner case.
Fix from Lan Tianyu.
- Fix for a recently introduced build problem in the ppc-corenet
cpufreq driver from Tim Gardner.
- A recent cpufreq core change to ensure serialization of frequency
transitions for drivers with a ->target_index() callback overlooked
the fact that some of those drivers had been doing operations
introduced by it into the core already by themselves. That resulted
in a mess in which the core and the drivers try to do the same thing
and block each other which leads to deadlocks. Fixes for the
powernow-k7, powernow-k6, and longhaul cpufreq drivers from
Srivatsa S Bhat.
- Fix for a computational error in the powernow-k6 cpufreq driver
from Srivatsa S Bhat.
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=FeTn
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"A bunch of regression fixes this time. They fix two regressions in
the PNP subsystem, one in the ACPI processor driver and one in the
ACPI EC driver, four cpufreq driver regressions and an unrelated bug
in one of the drivers. The regressions are recent or introduced in
3.14.
Specifics:
- There are two bugs in the ACPI PNP core that cause errors to be
returned if optional ACPI methods are not present. After an ACPI
core change made in 3.14 one of those errors leads to serial port
suspend failures on some systems. Fix from Rafael J Wysocki.
- A recently added PNP quirk related to Intel chipsets intorduced a
build error in unusual configurations (PNP without PCI). Fix from
Bjorn Helgaas.
- An ACPI EC workaround related to system suspend on Samsung machines
added in 3.14 introduced a race causing some valid EC events to be
discarded. Fix from Kieran Clancy.
- The acpi-cpufreq driver fails to load on some systems after a 3.14
commit related to APIC ID parsing that overlooked one corner case.
Fix from Lan Tianyu.
- Fix for a recently introduced build problem in the ppc-corenet
cpufreq driver from Tim Gardner.
- A recent cpufreq core change to ensure serialization of frequency
transitions for drivers with a ->target_index() callback overlooked
the fact that some of those drivers had been doing operations
introduced by it into the core already by themselves. That
resulted in a mess in which the core and the drivers try to do the
same thing and block each other which leads to deadlocks. Fixes
for the powernow-k7, powernow-k6, and longhaul cpufreq drivers from
Srivatsa S Bhat.
- Fix for a computational error in the powernow-k6 cpufreq driver
from Srivatsa S Bhat"
* tag 'pm+acpi-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / processor: Fix failure of loading acpi-cpufreq driver
PNP / ACPI: Do not return errors if _DIS or _SRS are not present
PNP: Fix compile error in quirks.c
ACPI / EC: Process rather than discard events in acpi_ec_clear
cpufreq: ppc-corenet-cpufreq: Fix __udivdi3 modpost error
cpufreq: powernow-k7: Fix double invocation of cpufreq_freq_transition_begin/end
cpufreq: powernow-k6: Fix double invocation of cpufreq_freq_transition_begin/end
cpufreq: powernow-k6: Fix incorrect comparison with max_multipler
cpufreq: longhaul: Fix double invocation of cpufreq_freq_transition_begin/end
This branch fixes a bug where a device can get stuck in the deferred
list even though all its dependencies are met. The bug has existed for a
long time, but new platform conversions to device tree have exposed it.
This patch is needed to get those platforms working.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=ADbi
-----END PGP SIGNATURE-----
Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux
Pull driver core deferred probe fix from Grant Likely:
"Drivercore race condition fix (exposed by devicetree)
This branch fixes a bug where a device can get stuck in the deferred
list even though all its dependencies are met. The bug has existed
for a long time, but new platform conversions to device tree have
exposed it. This patch is needed to get those platforms working.
This was the pending bug fix I mentioned in my previous pull request.
Normally this would go through Greg's tree seeing that it is a
drivercore change, but devicetree exposes the problem. I've discussed
with Greg and he okayed me asking you to pull directly"
* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux:
drivercore: deferral race condition fix
* acpi-ec:
ACPI / EC: Process rather than discard events in acpi_ec_clear
* acpi-processor:
ACPI / processor: Fix failure of loading acpi-cpufreq driver
A dm-verity fix for an immutable biovec regression that affects 3.14+.
A dm-cache fix to properly quiesce when using writethrough mode (3.14+).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJTY+6+AAoJEMUj8QotnQNaeC4H/35S9GZL8SVPEDS5nbQ9YdZ9
co7wAYIGswOInX9u8nq0TqcNtBMhxwwdRX9ScPxHVUTT+/lM/c7axHiMqVjZrMme
SVmmAXMp2uUMAnK4BGIQs8jjeyxBCHUF/gyfC3OC+RF72Z1bDkG/xXyKsljBSzMe
RP0iFvvvA1Sm7XzBJRuhZLIdJGkXFAy0ooEBICQOoudg6iDvDKCtiU+owB/x4bBh
xi9b1MY2VjkobWES6fyW/atolCEpgwU4xhsLl3w534P9oFvCkLEp4GTxdFWBhepl
K3usGr0t1QhmHy1hKw++WGsAkMRHocf8nIBqxxdDNWpZvOif2z+weLYbOn+TXTM=
=1Yvj
-----END PGP SIGNATURE-----
Merge tag 'dm-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"A few dm-thinp fixes for changes merged in 3.15-rc1.
A dm-verity fix for an immutable biovec regression that affects 3.14+.
A dm-cache fix to properly quiesce when using writethrough mode (3.14+)"
* tag 'dm-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: fix writethrough mode quiescing in cache_map
dm thin: use INIT_WORK_ONSTACK in noflush_work to avoid ODEBUG warning
dm verity: fix biovecs hash calculation regression
dm thin: fix rcu_read_lock being held in code that can sleep
dm thin: irqsave must always be used with the pool->lock spinlock
Pull x86 fixes from Peter Anvin:
"Two very small changes: one fix for the vSMP Foundation platform, and
one to help LLVM not choke on options it doesn't understand (although
it probably should)"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vsmp: Fix irq routing
x86: LLVMLinux: Wrap -mno-80387 with cc-option
the merge window.
- A fix from Oleg to async page faults.
- A bunch of small ARM changes.
- A trivial patch to use the new MSI-X API introduced during the merge
window.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=+bLo
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
- Fix for a Haswell regression in nested virtualization, introduced
during the merge window.
- A fix from Oleg to async page faults.
- A bunch of small ARM changes.
- A trivial patch to use the new MSI-X API introduced during the merge
window.
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: ARM: vgic: Fix the overlap check action about setting the GICD & GICC base address.
KVM: arm/arm64: vgic: fix GICD_ICFGR register accesses
KVM: async_pf: mm->mm_users can not pin apf->mm
KVM: ARM: vgic: Fix sgi dispatch problem
MAINTAINERS: co-maintainance of KVM/{arm,arm64}
arm: KVM: fix possible misalignment of PGDs and bounce page
KVM: x86: Check for host supported fields in shadow vmcs
kvm: Use pci_enable_msix_exact() instead of pci_enable_msix()
ARM: KVM: disable KVM in Kconfig on big-endian systems
Pull s390 fixes from Martin Schwidefsky:
"Two bug fixes, one to fix a potential information leak in the BPF jit
and common-io-layer fix for old firmware levels"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/bpf,jit: initialize A register if 1st insn is BPF_S_LDX_B_MSH
s390/chsc: fix SEI usage on old FW levels
Pull parisc fixes from Helge Deller:
"Drop the architecture-specifc value for_STK_LIM_MAX to fix stack
related problems with GNU make"
* 'parisc-3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Use generic uapi/asm/resource.h file
parisc: remove _STK_LIM_MAX override
Commit 2ee57d5873 ("dm cache: add passthrough mode") inadvertently
removed the deferred set reference that was taken in cache_map()'s
writethrough mode support. Restore taking this reference.
This issue was found with code inspection.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Cc: stable@vger.kernel.org # 3.13+
- Signedness bug in the TB10x
- GPIO inversion fix for the AS3722
- Clear pending pin interrups enabled in the bootloader in the
pinctrl-single driver
- Minor pin definition fixes for the PFC/Renesas driver
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=uhce
-----END PGP SIGNATURE-----
Merge tag 'pinctrl-v3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here is a small set of pin control fixes for the v3.15 series. All
are individual driver fixes and quite self-contained. One of them
tagged for stable.
- Signedness bug in the TB10x
- GPIO inversion fix for the AS3722
- Clear pending pin interrups enabled in the bootloader in the
pinctrl-single driver
- Minor pin definition fixes for the PFC/Renesas driver"
* tag 'pinctrl-v3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
sh-pfc: r8a7791: Fix definition of MOD_SEL3
sh-pfc: r8a7790: Fix definition of IPSR5
pinctrl: single: Clear pin interrupts enabled by bootloader
pinctrl: as3722: fix handling of GPIO invert bit
pinctrl/TB10x: Fix signedness bug
giving only false positives (now we finally figured out why).
Cheers,
Rusty.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=725P
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module fixes from Rusty Russell:
"Fixed one missing place for the new taint flag, and remove a warning
giving only false positives (now we finally figured out why)"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
module: remove warning about waiting module removal.
Fix: tracing: use 'E' instead of 'X' for unsigned module taint flag
There are only a couple of architectures that override _STK_LIM_MAX to
a non-infinity value. This changes the stack allocation semantics in
subtle ways. For example, GNU make changes its stack allocation to the
hard maximum defined by _STK_LIM_MAX. As a results, threads executed
by processes running under make are allocated a stack size of
_STK_LIM_MAX rather than a sensible default value. This causes various
thread stress tests to fail when they can't muster more than about 50
threads.
The attached change implements the default behavior used by the
majority of architectures.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Reviewed-by: Carlos O'Donell <carlos@systemhalted.org>
Cc: stable@vger.kernel.org # 3.14
Signed-off-by: Helge Deller <deller@gmx.de>
Commit 93ea02bb84 ("arch: Clean up asm/barrier.h implementations")
wired generic barrier.h for hexagon, but failed to delete the existing
file.
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Compile-tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, plus an Intel RAPL PMU driver fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tests x86: Fix stack map lookup in dwarf unwind test
perf x86: Fix perf to use non-executable stack, again
perf tools: Remove extra '/' character in events file path
perf machine: Search for modules in %s/lib/modules/%s
perf tests: Add static build make test
perf tools: Fix bfd dependency libraries detection
perf tools: Use LDFLAGS instead of ALL_LDFLAGS
perf/x86: Fix RAPL rdmsrl_safe() usage
tools lib traceevent: Fix memory leak in pretty_print()
tools lib traceevent: Fix backward compatibility macros for pevent filter enums
perf tools: Disable libdw unwind for all but x86 arch
perf tests x86: Fix memory leak in sample_ustack()
This is simpler and cleaner. Depending on architecture, a smart
compiler may or may not generate the same code.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull aio fixes from Ben LaHaise:
"The first change from Anatol fixes a regression where io_destroy() no
longer waits for outstanding aios to complete. The second corrects a
memory leak in an error path for vectored aio operations.
Both of these bug fixes should be queued up for stable as well"
* git://git.kvack.org/~bcrl/aio-fixes:
aio: fix potential leak in aio_run_iocb().
aio: block io_destroy() until all context requests are completed
iovec should be reclaimed whenever caller of rw_copy_check_uvector() returns,
but it doesn't hold when failure happens right after aio_setup_vectored_rw().
Fix that in a such way to avoid hairy goto.
Signed-off-by: Leon Yu <chianglungyu@gmail.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Cc: stable@vger.kernel.org
This reverts commit 9fb6c9c73b.
Tjmax on some Intel CPUs is below 85 degrees C. One known example is
L5630 with Tjmax of 71 degrees C. There are other Xeon processors with
Tjmax of 70 or 80 degrees C. Also, the Intel IA32 System Programming
document states that the temperature target is in bits 23:16 of MSR 0x1a2
(MSR_TEMPERATURE_TARGET), which is 8 bits, not 7.
So even if turbostat uses similar checks to validate Tjmax, there is no
evidence that the checks are actually required. On the contrary, the
checks are known to cause problems and therefore need to be removed.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=75071.
Fixes: 9fb6c9c hwmon: (coretemp) Refine TjMax detection
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
. Fix perf to use non-executable stack, again (Mathias Krause)
. Remove extra '/' character in events file path (Xia Kaixu)
. Search for modules in %s/lib/modules/%s (Richard Yao)
. Build related fixies plus static build test (Jiri Olsa)
. Fix stack map lookup in dwarf unwind test (Jiri Olsa)
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=FCkp
-----END PGP SIGNATURE-----
Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/urgent
Pull perf/urgent fixes from Jiri Olsa:
* Fix perf to use non-executable stack, again (Mathias Krause)
* Remove extra '/' character in events file path (Xia Kaixu)
* Search for modules in %s/lib/modules/%s (Richard Yao)
* Build related fixies plus static build test (Jiri Olsa)
* Fix stack map lookup in dwarf unwind test (Jiri Olsa)
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
According commit d640113fe (ACPI: processor: fix acpi_get_cpuid for UP
processor), BIOS may not provide _MAT or MADT tables and acpi_get_apicid()
always returns -1. For these cases, original code will pass apic_id with
vaule of -1 to acpi_map_cpuid() and it will check the acpi_id. If acpi_id
is equal to zero, ignores apic_id and return zero for CPU0.
Commit b981513 (ACPI / scan: bail out early if failed to parse APIC
ID for CPU) changed the behavior. Return ENODEV when find apic_id is
less than zero after calling acpi_get_apicid(). This causes acpi-cpufreq
driver fails to be loaded on some machines. This patch is to fix it.
Fixes: b981513f80 (ACPI / scan: bail out early if failed to parse APIC ID for CPU)
References: https://bugzilla.kernel.org/show_bug.cgi?id=73781
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Reported-and-tested-by: KATO Hiroshi <katoh@mikage.ne.jp>
Reported-and-tested-by: Stuart Foster <smf.linux@ntlworld.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The ACPI PNP subsystem returns errors from pnpacpi_set_resources()
and pnpacpi_disable_resources() if the _SRS or _DIS methods are not
present, respectively, but it should not do that, because those
methods are optional. For this reason, modify pnpacpi_set_resources()
and pnpacpi_disable_resources(), respectively, to ignore missing _SRS
or _DIS.
This problem has been uncovered by commit 202317a573 (ACPI / scan:
Add acpi_device objects for all device nodes in the namespace) and
manifested itself by causing serial port suspend to fail on some
systems.
Fixes: 202317a573 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
References: https://bugzilla.kernel.org/show_bug.cgi?id=74371
Reported-by: wxg4net <wxg4net@gmail.com>
Reported-and-tested-by: <nonproffessional@gmail.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Includes vgic fixes, a possible kernel corruption bug due to
misalignment of pages and disabling of KVM in KConfig on big-endian
systems, because the last one breaks the build.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)
iQEcBAABAgAGBQJTYNiqAAoJEEtpOizt6ddy4NwH/3ZVN7sgC5vKiKEf0n5wNdN2
zCMNOnjKfaZN7dUval3eT3qF6h0emDqW5pOFstHwoFvuMAFauLMWPQCbU1m+bl3K
gD745kVniLKGHyE4rEwOiUNEiYGbiP44DeC1oGlirSiGNptMQjeAi3dhEtJpedES
xtn3jY26bWrIdOZ75/pvFix2qE8CXmRJU2oEvsZ0B5gGkqsblrlcY+ascot4Rm8t
M88SAhGs6pzMWpjfOOm55E2BXISQw18KMzETRWZgmmYgYQOaR2sH0USwQuI/Uhvx
1UZBZSYz3KYEx3kxKnXyS7qZyWQOY8p+y487Ty9VTlzuat2gxXH9TMMA39ZIGak=
=gpor
-----END PGP SIGNATURE-----
Merge tag 'kvm-arm-for-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master
First round of KVM/ARM Fixes for 3.15
Includes vgic fixes, a possible kernel corruption bug due to
misalignment of pages and disabling of KVM in KConfig on big-endian
systems, because the last one breaks the build.
There was a very small race window where resume to kernel mode from a
Exception Path (or pure kernel mode which is true for most of ARC
exceptions anyways), was not disabling interrupts in restore_regs,
clobbering the exception regs
Anton found the culprit call flow (after many sleepless nights)
| 1. we got a Trap from user land
| 2. started to service it.
| 3. While doing some stuff on user-land memory (I think it is padzero()),
| we got a DataTlbMiss
| 4. On return from it we are taking "resume_kernel_mode" path
| 5. NEED_RESHED is not set, so we go to "return from exception" path in
| restore regs.
| 6. there seems to be IRQ happening
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: <stable@vger.kernel.org> #3.10, 3.12, 3.13, 3.14
Cc: Anton Kolesov <Anton.Kolesov@synopsys.com>
Cc: Francois Bedard <Francois.Bedard@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A few collections of small eggs that have been gathered during
the Easter holidays. Mostly small ASoC fixes, with a HD-audio
quirk and a workaround for Nvidia controller.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=M31u
-----END PGP SIGNATURE-----
Merge tag 'sound-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A few collections of small eggs that have been gathered during the
Easter holidays. Mostly small ASoC fixes, with a HD-audio quirk and a
workaround for Nvidia controller"
* tag 'sound-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Suppress CORBRP clear on Nvidia controller chips
ALSA: hda - add headset mic detect quirk for a Dell laptop
ASoC: jz4740: Remove Makefile entry for removed file
ASoC: Intel: Fix audio crash due to negative address offset
ASoC: dapm: Fix widget double free with auto-disable DAPM kcontrol
ASoC: Intel: Fix incorrect sizeof() in sst_hsw_stream_get_volume()
ASoC: Intel: some incorrect sizeof() usages
ASoC: cs42l73: Convert to use devm_gpio_request_one
ASoC: cs42l52: Convert to use devm_gpio_request_one
ASoC: tlv320aic31xx: document that the regulators are mandatory
ASoC: fsl_spdif: Fix wrong OFFSET of STC_SYSCLK_DIV
ASoC: alc5623: Fix regmap endianness
ASoC: tlv320aic3x: fix shared reset pin for DT
ASoC: rsnd: fix clock prepare/unprepare
arch/x86/tests/regs_load.S is missing the linker note about the stack
requirements, therefore making the linker fall back to an executable
stack. As this object gets linked against the final perf binary, it'll
needlessly end up with an executable stack. Fix this by adding the
appropriate linker note.
Also add a global linker flag to prevent future regressions, as
suggested by Jiri. This way perf won't get an executable stack even if
we fail to add the .GNU-stack linker note to future assembler files.
Though, doing so might create regressions the other way around, when
(statically) linking against libraries needing an executable stack.
But, apparently, regressing in that direction is wanted as it is an
indicator of poor code quality -- or just missing linker notes.
Fixes: 3c8b06f981 ("perf tests x86: Introduce perf_regs_load function")
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1398617466-22749-1-git-send-email-minipli@googlemail.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Ramkumar Ramachandra