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Merge tag 'v3.6-rc5' into for-linus
Sync with mainline so that I can revert an input patch that came in through
another subsystem tree.
powernowk8_target() runs off a per-cpu work item and if the
cpufreq_policy->cpu is different from the current one, it migrates the
kworker to the target CPU by manipulating current->cpus_allowed. The
function migrates the kworker back to the original CPU but this is
still broken. Workqueue concurrency management requires the kworkers
to stay on the same CPU and powernowk8_target() ends up triggerring
BUG_ON(rq != this_rq()) in try_to_wake_up_local() if it contends on
fidvid_mutex and sleeps.
It is unclear why this bug is being reported now. Duncan says it
appeared to be a regression of 3.6-rc1 and couldn't reproduce it on
3.5. Bisection seemed to point to 63d95a91 "workqueue: use @pool
instead of @gcwq or @cpu where applicable" which is an non-functional
change. Given that the reproduce case sometimes took upto days to
trigger, it's easy to be misled while bisecting. Maybe something made
contention on fidvid_mutex more likely? I don't know.
This patch fixes the bug by using work_on_cpu() instead if @pol->cpu
isn't the same as the current one. The code assumes that
cpufreq_policy->cpu is kept online by the caller, which Rafael tells
me is the case.
stable: ed48ece27c ("workqueue: reimplement work_on_cpu() using
system_wq") should be applied before this; otherwise, the
behavior could be horrible.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Duncan <1i5t5.duncan@cox.net>
Tested-by: Duncan <1i5t5.duncan@cox.net>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: stable@vger.kernel.org
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47301
The existing work_on_cpu() implementation is hugely inefficient. It
creates a new kthread, execute that single function and then let the
kthread die on each invocation.
Now that system_wq can handle concurrent executions, there's no
advantage of doing this. Reimplement work_on_cpu() using system_wq
which makes it simpler and way more efficient.
stable: While this isn't a fix in itself, it's needed to fix a
workqueue related bug in cpufreq/powernow-k8. AFAICS, this
shouldn't break other existing users.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@vger.kernel.org
Add DT property to tell the MAX8907 that it should provide the
pm_power_off() implementation. This allows "shutdown" to work.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
list_for_each_entry_reverse() dereferences the iterator, but we already
freed it. I don't see a reason that this has to be done in reverse order
so change it to use list_for_each_entry_safe().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This moves such data out of the spear include directories
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: spear-devel@list.st.com
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This moves such data out of the samsung include directories
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Bryan Wu <bryan.wu@canonical.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: linux-samsung-soc@vger.kernel.org
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This moves such data out of the orion include directories
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <djbw@fb.com>
Cc: Bryan Wu <bryan.wu@canonical.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Ball <cjb@laptop.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This moves such data out of the omap include directories
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: "Benoît Cousson" <b-cousson@ti.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Omar Ramirez Luna <omar.ramirez@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: Jean Pihet <j-pihet@ti.com>
Cc: J Keerthy <j-keerthy@ti.com>
Cc: linux-omap@vger.kernel.org
This patch updates the existing Intel IvyBridge (model 58)
support with proper PEBS event constraints. It cannot reuse
the same as SandyBridge because some events (0xd3) are
specific to IvyBridge.
Also there is no UOPS_DISPATCHED.THREAD on IVB, so do not
populate the PERF_COUNT_HW_STALLED_CYCLES_BACKEND mapping.
Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: ak@linux.intel.com
Link: http://lkml.kernel.org/r/20120910230701.GA5898@quad
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Make "REP BSF" unconditional, as per the suggestion of hpa
and Linus, this removes the insane BSF_PREFIX conditional
and simplifies the logic.
Suggested-by: "H. Peter Anvin" <hpa@zytor.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/5058741E020000780009C014@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
When acting on a user bug report, we find ourselves constantly
asking for /proc/cpuinfo in order to know the exact family,
model, stepping of the CPU in question.
Instead of having to ask this, add this to dmesg so that it is
visible and no ambiguities can ensue from looking at the
official name string of the CPU coming from CPUID and trying
to map it to f/m/s.
Output then looks like this:
[ 0.146041] smpboot: CPU0: AMD FX(tm)-8100 Eight-Core Processor (fam: 15, model: 01, stepping: 02)
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Link: http://lkml.kernel.org/r/1347640666-13638-1-git-send-email-bp@amd64.org
[ tweaked it minimally to add commas. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The test should be >= ARRAY_SIZE() instead of > ARRAY_SIZE().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/20120905123126.GC6128@elgon.mountain
Signed-off-by: Ingo Molnar <mingo@kernel.org>
where CONFIG_X86_MCE is disabled and this is a bad idea so turning it on
by default makes sense to me. The second one is a trivial cleanup.
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Merge tag 'ras_queue_for_3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/mce
Pull MCE changes from Borislav Petkov:
" Patch 1/2 which enables MCA by default because I still see bugreports
where CONFIG_X86_MCE is disabled and this is a bad idea so turning it on
by default makes sense to me. The second one is a trivial cleanup. "
Signed-off-by: Ingo Molnar <mingo@kernel.org>
. Fix handling of unresolved samples when --symbols is used in 'report',
from Feng Tang.
. Add --symbols to 'script', similar to the one in 'report', from Feng Tang.
. Add union member access support to 'probe', from Hyeoncheol Lee.
. Make 'archive' work on Android, tweaking some of the utility parameters
used (tar, rm), from Irina Tirdea.
. Fixups to die() removal, from Namhyung Kim.
. Render fixes for the TUI, from Namhyung Kim.
. Don't enable annotation in non symbolic view, from Namhyung Kim.
. Fix pipe mode in 'report', from Namhyung Kim.
. Move related stats code from stat to util/, will be used by the 'stat'
kvm tool, from Xiao Guangrong.
. Add cpumask for uncore pmu, use it in 'stat', from Yan, Zheng.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
* Fix handling of unresolved samples when --symbols is used in 'report',
from Feng Tang.
* Add --symbols to 'script', similar to the one in 'report', from Feng Tang.
* Add union member access support to 'probe', from Hyeoncheol Lee.
* Make 'archive' work on Android, tweaking some of the utility parameters
used (tar, rm), from Irina Tirdea.
* Fixups to die() removal, from Namhyung Kim.
* Render fixes for the TUI, from Namhyung Kim.
* Don't enable annotation in non symbolic view, from Namhyung Kim.
* Fix pipe mode in 'report', from Namhyung Kim.
* Move related stats code from stat to util/, will be used by the 'stat'
kvm tool, from Xiao Guangrong.
* Add cpumask for uncore pmu, use it in 'stat', from Yan, Zheng.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
OMAP interconnect drivers are used for the interconnect error handling.
Since they are bus driver, lets move it to newly created drivers/bus.
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Don't load the FEC MAC address from OCOTP, but use the one supplied
via device tree by U-Boot. This is the preferred way, every DT-capable
bootloader does set up "mac-address" and "local-mac-address" properties
into the DT passed to the kernel.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
After commit b6d86d3d (Fix DIV_ROUND_CLOSEST to support negative dividends),
the following warning is seen if the kernel is compiled with W=1 (-Wextra):
warning: comparison of unsigned expression >= 0 is always true
The warning is due to the test '((typeof(x))-1) >= 0', which is used to detect
if the variable type is unsigned. Research on the web suggests that the warning
disappears if '>' instead of '>=' is used for the comparison.
Tests after changing the macro along that line show that the warning is gone,
and that the result is still correct:
i=-4: DIV_ROUND_CLOSEST(i, 2)=-2
i=-3: DIV_ROUND_CLOSEST(i, 2)=-2
i=-2: DIV_ROUND_CLOSEST(i, 2)=-1
i=-1: DIV_ROUND_CLOSEST(i, 2)=-1
i=0: DIV_ROUND_CLOSEST(i, 2)=0
i=1: DIV_ROUND_CLOSEST(i, 2)=1
i=2: DIV_ROUND_CLOSEST(i, 2)=1
i=3: DIV_ROUND_CLOSEST(i, 2)=2
i=4: DIV_ROUND_CLOSEST(i, 2)=2
Code size is the same as before.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Fix the following warning:
arch/powerpc/sysdev/fsl_pci.c: In function 'fsl_pci_probe':
arch/powerpc/sysdev/fsl_pci.c:867:25: error: unused variable 'hose'
Signed-off-by: Jia Hongtao <B38951@freescale.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
IFC may have one or two interrupts. If two interrupt specifiers are
present, the first is the "common" interrupt (CM_EVTER_STAT), and the
second is the NAND interrupt (NAND_EVTER_STAT). If there is only one, that
interrupt reports both types of event.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
During suspend, all interrupts including IPI will be disabled. In this case,
the suspend process will hang in SMP. To prevent this, pass the flag
IRQF_NO_SUSPEND when requesting IPI irq.
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Alan Cox <alan@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: spear-devel@list.st.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Jochen Friedrich <jochen@scram.de>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Barry Song <baohua.song@csr.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Acked-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: STEricsson <STEricsson_nomadik_linux@list.st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Acked-by: David Brown <davidb@codeaurora.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Roland Stigge <stigge@antcom.de>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
At the moment, this patch conflicts with other patches in linux-next,
need to sort this out.
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
This patch has a few small conflicts with stuff in linux-next, which
we have to sort out in arm-soc.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.
This found a bug in mach-armadillo5x0.c, where we attempt mmio
on the MXC_CCM_RCSR address that is currently defined to 0xc
and consequently causes an illegal address access.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
IMA audit hashes patches introduced new IMA flags and required
space went beyond 8 bits. Currently the only flag is IMA_DIGSIG.
This patch use 16 bit short instead of 8 bit char.
Without this fix IMA signature will be replaced with hash, which
should not happen.
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
The per-device PM QoS locking requires a spinlock to be used. The reasons
are:
- an alignement with the PM QoS core code, which is used by the per-device
PM QoS code for the constraints lists management. The PM QoS core code
uses spinlocks to protect the constraints lists,
- some drivers need to use the per-device PM QoS functionality from
interrupt context or spinlock protected context.
An example of such a driver is the OMAP HSI (high-speed synchronous serial
interface) driver which needs to control the IP block idle state
depending on the FIFO empty state, from interrupt context.
Reported-by: Djamil Elaidi <d-elaidi@ti.com>
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
When dpm_suspend_noirq fail, state is PMSG_SUSPEND,
should change to PMSG_RESUME when dpm_resume_early is called
Signed-off-by: Feng Hong <hongfeng@marvell.com>
Signed-off-by: Raul Xiong <xjian@marvell.com>
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
