eMCA has higher H/W event reporting priority. Once it is
loaded, EDAC event reporting should be disabled, unless EDAC
overrides eMCA priority via command line parameter "edac_report=force".
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/1386310630-12529-4-git-send-email-gong.chen@linux.intel.com
[ Boris: massage printk message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
This patch adds the missing SIGP order "conditional emergency
signal" by calling the "emergency signal" SIGP handler if the
required conditions are met.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
We've got a helper function for setting the condition code now,
so let's use it in the SIGP handler, too.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Add some further documentation on the DIAGNOSE calls we support.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
John W. Linville says:
====================
Just one patch this time -- a fix from Felix Fietkau to fix the
duration calculation for non-aggregated packets in ath9k. This is
a small change and it is obviously specific to ath9k.
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
KVM initialisation fails on architectures implementing virt_to_idmap()
because virt_to_phys() on such architectures won't fetch you the correct
idmap page.
So update the KVM ARM code to use the virt_to_idmap() to fix the issue.
Since the KVM code is shared between arm and arm64, we create
kvm_virt_to_phys() and handle the redirection in respective headers.
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
SKIP_NONLOCAL hides the control flow. The control flow should be
inlined and expanded explicitly in code so that someone who reads
it can tell the control flow can be changed by the statement.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Newer Intel platforms support more than one method to report H/W event.
On this kind of platform, H/W event report can adopt new method and
traditional EDAC method should be disabled. Moreover, if EDAC event
report method is set to *force*, it means event must be reported via
EDAC interface. IOW, it overrides the default event report policy.
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/1386310630-12529-3-git-send-email-gong.chen@linux.intel.com
[ Boris: massage commit and error messages ]
Signed-off-by: Borislav Petkov <bp@suse.de>
This new parameter is used to control how to report HW error reporting,
especially for newer Intel platform, like Ivybridge-EX, which contains
an enhanced error decoding functionality in the firmware, i.e. eMCA.
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/1386310630-12529-2-git-send-email-gong.chen@linux.intel.com
[ Boris: massage commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
These mappings are in fact special and require special handling in privcmd,
which already exists. Failure to mark the PTE as special on arm64 causes all
sorts of bad PTE fun. e.g.
e.g.:
BUG: Bad page map in process xl pte:e0004077b33f53 pmd:4079575003
page:ffffffbce1a2f328 count:1 mapcount:-1 mapping: (null) index:0x0
page flags: 0x4000000000000014(referenced|dirty)
addr:0000007fb5259000 vm_flags:040644fa anon_vma: (null) mapping:ffffffc03a6fda58 index:0
vma->vm_ops->fault: privcmd_fault+0x0/0x38
vma->vm_file->f_op->mmap: privcmd_mmap+0x0/0x2c
CPU: 0 PID: 2657 Comm: xl Not tainted 3.12.0+ #102
Call trace:
[<ffffffc0000880f8>] dump_backtrace+0x0/0x12c
[<ffffffc000088238>] show_stack+0x14/0x1c
[<ffffffc0004b67e0>] dump_stack+0x70/0x90
[<ffffffc000125690>] print_bad_pte+0x12c/0x1bc
[<ffffffc0001268f4>] unmap_single_vma+0x4cc/0x700
[<ffffffc0001273b4>] unmap_vmas+0x68/0xb4
[<ffffffc00012c050>] unmap_region+0xcc/0x1d4
[<ffffffc00012df20>] do_munmap+0x218/0x314
[<ffffffc00012e060>] vm_munmap+0x44/0x64
[<ffffffc00012ed78>] SyS_munmap+0x24/0x34
Where unmap_single_vma contains inlined -> unmap_page_range -> zap_pud_range
-> zap_pmd_range -> zap_pte_range -> print_bad_pte.
Or:
BUG: Bad page state in process xl pfn:4077b4d
page:ffffffbce1a2f8d8 count:0 mapcount:-1 mapping: (null) index:0x0
page flags: 0x4000000000000014(referenced|dirty)
Modules linked in:
CPU: 0 PID: 2657 Comm: xl Tainted: G B 3.12.0+ #102
Call trace:
[<ffffffc0000880f8>] dump_backtrace+0x0/0x12c
[<ffffffc000088238>] show_stack+0x14/0x1c
[<ffffffc0004b67e0>] dump_stack+0x70/0x90
[<ffffffc00010f798>] bad_page+0xc4/0x110
[<ffffffc00010f8b4>] free_pages_prepare+0xd0/0xd8
[<ffffffc000110e94>] free_hot_cold_page+0x28/0x178
[<ffffffc000111460>] free_hot_cold_page_list+0x38/0x60
[<ffffffc000114cf0>] release_pages+0x190/0x1dc
[<ffffffc00012c0e0>] unmap_region+0x15c/0x1d4
[<ffffffc00012df20>] do_munmap+0x218/0x314
[<ffffffc00012e060>] vm_munmap+0x44/0x64
[<ffffffc00012ed78>] SyS_munmap+0x24/0x34
x86 already gets this correct. 32-bit arm gets away with this because there is
not PTE_SPECIAL bit in the PTE there and the vm_normal_page fallback path does
the right thing.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Currently when we are processing a request, we try to scrape an expired
or over-limit entry off the list in preference to allocating a new one
from the slab.
This is unnecessarily complicated. Just use the slab layer.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
On arm64 the dma_map_ops implementation is based on the swiotlb.
swiotlb-xen, used by default in dom0 on Xen, is also based on the
swiotlb.
Avoid calling into the default arm64 dma_map_ops functions from
xen_dma_map_page, xen_dma_unmap_page, xen_dma_sync_single_for_cpu, and
xen_dma_sync_single_for_device otherwise we end up calling into the
swiotlb twice.
When arm64 gets a non-swiotlb based implementation of dma_map_ops, we'll
probably have to reintroduce dma_map_ops calls in page-coherent.h.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
CC: catalin.marinas@arm.com
CC: Will.Deacon@arm.com
CC: Ian.Campbell@citrix.com
Initialize first chain flags in ath9k_build_tx99_skb() according to
configured channel mode and channel width
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
I don't have the time to maintain the TI WiLink WLAN drivers anymore.
Remove my name and mark them as Orphan.
Signed-off-by: Luciano Coelho <luca@coelho.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Some cards don't update the PISR properly when all SISR bits
for Tx interrupts are being cleared and as a result we get
interrupt storm. Since we handle all tx queues all together
(so we don't really use the SISR bits to do per-queue interrupt
handling), we can manualy update PISR by doing a write-to-clear
on its Tx interrupt bits.
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Several files refer to an old address for the Free Software Foundation
in the file header comment. Resolve by replacing the address with
the URL <http://www.gnu.org/licenses/> so that we do not have to keep
updating the header comments anytime the address changes.
CC: linux-wireless@vger.kernel.org
CC: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
CC: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
CC: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Several files refer to an old address for the Free Software Foundation
in the file header comment. Resolve by replacing the address with
the URL <http://www.gnu.org/licenses/> so that we do not have to keep
updating the header comments anytime the address changes.
CC: linux-wireless@vger.kernel.org
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Several files refer to an old address for the Free Software Foundation
in the file header comment. Resolve by replacing the address with
the URL <http://www.gnu.org/licenses/> so that we do not have to keep
updating the header comments anytime the address changes.
CC: linux-wireless@vger.kernel.org
CC: Simon Kelley <simon@thekelleys.org.uk>
CC: Christian Lamparter <chunkeey@googlemail.com>
CC: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Several files refer to an old address for the Free Software Foundation
in the file header comment. Resolve by replacing the address with
the URL <http://www.gnu.org/licenses/> so that we do not have to keep
updating the header comments anytime the address changes.
CC: linux-wireless@vger.kernel.org
CC: "Luis R. Rodriguez" <mcgrof@gmail.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Several files refer to an old address for the Free Software Foundation
in the file header comment. Resolve by replacing the address with
the URL <http://www.gnu.org/licenses/> so that we do not have to keep
updating the header comments anytime the address changes.
CC: linux-wireless@vger.kernel.org
CC: Ivo van Doorn <IvDoorn@gmail.com>
CC: Gertjan van Wingerde <gwingerde@gmail.com>
CC: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Several files refer to an old address for the Free Software Foundation
in the file header comment. Resolve by replacing the address with
the URL <http://www.gnu.org/licenses/> so that we do not have to keep
updating the header comments anytime the address changes.
CC: linux-wireless@vger.kernel.org
CC: Daniel Drake <dsd@gentoo.org>
CC: Ulrich Kunitz <kune@deine-taler.de>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
- Delete some static core module mappings.
- Move EBI location to the device tree.
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Merge tag 'integrator-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into next/dt
From Linus Walleij:
Two integrator device tree patches for v3.14:
- Delete some static core module mappings.
- Move EBI location to the device tree.
* tag 'integrator-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: integrator: move EBI to the device tree
ARM: integrator: delete static core module mappings
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Remove a full barrier from the ring-buffer write path by relying on
a control dependency to order a LOAD -> STORE scenario.
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-8alv40z6ikk57jzbaobnxrjl@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Christian suffers from a bad BIOS that wrecks his i5's TSC sync. This
results in him occasionally seeing time going backwards - which
crashes the scheduler ...
Most of our time accounting can actually handle that except the most
common one; the tick time update of sched_fair.
There is a further problem with that code; previously we assumed that
because we get a tick every TICK_NSEC our time delta could never
exceed 32bits and math was simpler.
However, ever since Frederic managed to get NO_HZ_FULL merged; this is
no longer the case since now a task can run for a long time indeed
without getting a tick. It only takes about ~4.2 seconds to overflow
our u32 in nanoseconds.
This means we not only need to better deal with time going backwards;
but also means we need to be able to deal with large deltas.
This patch reworks the entire code and uses mul_u64_u32_shr() as
proposed by Andy a long while ago.
We express our virtual time scale factor in a u32 multiplier and shift
right and the 32bit mul_u64_u32_shr() implementation reduces to a
single 32x32->64 multiply if the time delta is still short (common
case).
For 64bit a 64x64->128 multiply can be used if ARCH_SUPPORTS_INT128.
Reported-and-Tested-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: fweisbec@gmail.com
Cc: Paul Turner <pjt@google.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20131118172706.GI3866@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Introduce mul_u64_u32_shr() as proposed by Andy a while back; it
allows using 64x64->128 muls on 64bit archs and recent GCC
which defines __SIZEOF_INT128__ and __int128.
(This new method will be used by the scheduler.)
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: fweisbec@gmail.com
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-hxjoeuzmrcaumR0uZwjpe2pv@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
While hunting a preemption issue with Alexander, Ben noticed that the
currently generic PREEMPT_NEED_RESCHED stuff is horribly broken for
load-store architectures.
We currently rely on the IPI to fold TIF_NEED_RESCHED into
PREEMPT_NEED_RESCHED, but when this IPI lands while we already have
a load for the preempt-count but before the store, the store will erase
the PREEMPT_NEED_RESCHED change.
The current preempt-count only works on load-store archs because
interrupts are assumed to be completely balanced wrt their preempt_count
fiddling; the previous preempt_count load will match the preempt_count
state after the interrupt and therefore nothing gets lost.
This patch removes the PREEMPT_NEED_RESCHED usage from generic code and
pushes it into x86 arch code; the generic code goes back to relying on
TIF_NEED_RESCHED.
Boot tested on x86_64 and compile tested on ppc64.
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-and-Tested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20131128132641.GP10022@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Yinghai reported that he saw a /0 in sg_capacity on his EX parts.
Make sure to always initialize power_orig now that we actually use it.
Ideally build_sched_domains() -> init_sched_groups_power() would also
initialize this; but for some yet unexplained reason some setups seem
to miss updates there.
Reported-by: Yinghai Lu <yinghai@kernel.org>
Tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-l8ng2m9uml6fhibln8wqpom7@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Check whether initial_boot_params is NULL before dereferencing it in
unflatten_and_copy_device_tree() for the case where no device tree is
available but the arch can still boot to a minimal usable system without
it. In this case also log a warning for when the kernel log buffer is
obtainable.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
The update is horribly racy since it doesn't protect at all against
concurrent closing of the master fd. And it can't really since that
requires us to grab a mutex.
Instead of jumping through hoops and offloading this to a worker
thread just block this bit of code for the modesetting driver.
Note that the race is fairly easy to hit since we call the breadcrumb
function for any interrupt. So the vblank interrupt (which usually
keeps going for a bit) is enough. But even if we'd block this and only
update the breadcrumb for user interrupts from the CS we could hit
this race with kms/gem userspace: If a non-master is waiting somewhere
(and hence has interrupts enabled) and the master closes its fd
(probably due to crashing).
v2: Add a code comment to explain why fixing this for real isn't
really worth it. Also improve the commit message a bit.
v3: Fix the spelling in the comment.
Reported-by: Eugene Shatokhin <eugene.shatokhin@rosalab.ru>
Cc: Eugene Shatokhin <eugene.shatokhin@rosalab.ru>
Cc: stable@vger.kernel.org
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Eugene Shatokhin <eugene.shatokhin@rosalab.ru>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The call to gpiochip_add() is not currently error-checked. Add the
missing checking.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This makes it possible to request the gpio descriptors in
rfkill_gpio driver regardless of the platform.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Look-Up Table looks up values in 8-bit indexed tables separately for
each color component.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The Super Resolution Unit performs super resolution processing with
optional upscaling by a factor of two.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The Hue Saturation value Transform and Hue Saturation value Inverse
transform entities convert from RGB to HSV and back.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Implement the get and set selection operations on the RPF and WPF
entities. Only the crop targets are currently available.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
When operating in DU output mode (deep pipeline to the DU through the
LIF), the VSP1 needs to constantly supply frames to the display. To
ensure reuse the last queued buffer instead of returning it to the user.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The MT9V034 sensor is very similar to the MT9V032, with a couple of
different registers and parameters.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
To prepare support of the MT9V034, add the necessary infrastructure to
support model-specific parameters.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Identify the model based on the I2C device name and configure formats
accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Enhance dmaengine_pcm_request_chan_of() to support deferred probe for
DMA channels, by using the new dma_request_slave_channel_or_err() API.
This prevents snd_dmaengine_pcm_register() from succeeding without
acquiring DMA channels due to the relevant DMA controller not yet being
registered.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
The sensor can scale the image down using binning by 1, 2 or 4 in both
directions. Update size enumeration and ratio and binning factor
computation accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The active pixel array size is 753x481 with 4 additional black rows at
the top. Fix the driver accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The following branch/patch is a dependency for my "ASoC: dmaengine:
support deferred probe for DMA channels". If you could pull the branch
below into your topic/dma, then merge my ASoC patch, that would be
great. I would then like to merge your topic/dma into the Tegra tree as
a baseline for the Tegra conversion to the standard DMA DT bindings.
Vinod has confirmed this his topic/defer_probe branch is stable, and
won't be rebased:
https://lkml.org/lkml/2013/12/10/463
Remove original filter from fsi_dma_probe(),
and use SH-DMA suitable filter.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
