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This isn't strictly necessary for the async readpages code, but the
uncached version will need to be able to collect the replies after
issuing the calls. Add a kref to cifs_readdata and use change the
code to take and put references appropriately.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cached and uncached reads will need to do different things here to
handle the difference when the pages are in pagecache and not. Abstract
out the function that marshals the page list into a kvec array.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
We'll need different completion routines for an uncached read. Allow
the caller to set the one he needs at allocation time. Also, move
most of these functions to file.c so we can make more of them static.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Pull kvm powerpc fixes from Marcelo Tosatti:
"Urgent KVM PPC updates, quoting Alexander Graf:
There are a few bugs in 3.4 that really should be fixed before
people can be all happy and fuzzy about KVM on PowerPC. These fixes
are:
* fix POWER7 bare metal with PR=y
* fix deadlock on HV=y book3s_64 mode in low memory cases
* fix invalid MMU scope of PR=y mode on book3s_64, possibly eading
to memory corruption"
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: PPC: Book3S HV: Fix bug leading to deadlock in guest HPT updates
powerpc/kvm: Fix VSID usage in 64-bit "PR" KVM
KVM: PPC: Book3S: PR: Fix hsrr code
KVM: PPC: Fix PR KVM on POWER7 bare metal
KVM: PPC: Book3S: PR: Handle EMUL_ASSIST
A few last-minute regression fixes for 3.4 final kernel.
All trivial, and Cc'ed to stable kernel.
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Merge tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A few last-minute regression fixes for 3.4 final kernel. All trivial,
and Cc'ed to stable kernel."
* tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: wm8994: Fix AIF2ADC power down
ALSA: hda/idt - Fix power-map for speaker-pins with some HP laptops
ASoC: cs42l73: Sync digital mixer kcontrols to allow for 0dB
a remote processor is shut down and, on certain circumstances,
can indirectly prevent it from being reloaded.
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Merge tag 'rproc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
Pull remoteproc fix from Ohad Ben-Cohen:
"Fix a nasty off-by-one remoteproc bug which leaks memory when a remote
processor is shut down and, on certain circumstances, can indirectly
prevent it from being reloaded."
* tag 'rproc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
remoteproc: fix off-by-one bug in __rproc_free_vrings
Pull two Tile arch fixes from Chris Metcalf:
"These are both bug-fixes, one to avoid some issues in how we invoke
the "pending userspace work" flags on return to userspace, and the
other to provide the same signal handler arguments for tilegx32 that
we do for tilegx64."
* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: apply commit 74fca9da0 to the compat signal handling as well
arch/tile: fix up some issues in calling do_work_pending()
Pull networking tree from David Miller:
1) ptp_pch driver build broke during this merge window due to missing
slab.h header, fix from Geery Uytterhoeven.
2) If ipset passes in a bogus hash table size we crash because the size
is not validated properly. Compounding this, gcc-4.7 can miscompile
ipset such that even when the user specifies legitimate parameters
the tool passes in an out-of-range size to the kernel.
Fix from Jozsef Kadlecsik.
3) Users have reported that the netdev watchdog can trigger with pch_gbe
devices, and it turns out this is happening because of races in the
TX path of the driver leading to the transmitter hanging. Fix from
Eric Dumazet, reported and tested by Andy Cress.
4) Novatel USB551L devices match the generic class entries for the cdc
ethernet USB driver, but they don't work because they have generic
descriptors and thus need FLAG_WWAN to function properly.
Add the necessary ID table entry to fix this, from Dan Williams.
5) A recursive locking fix in the USBNET driver added a new problem, in
that packet list traversal is now racy and we can thus access
unlinked SKBs and crash.
Avoid this situation by adding some extra state tracking, from Ming
Lei.
6) The rtlwifi conversion to asynchronous firmware loading is racy, fix
by reordering the probe procedure. From Larry Finger.
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=43187
7) Fix regressions with bluetooth keyboards by notifying userland
properly when the security level changes, from Gustavo Padovan.
8) Bluetooth needs to make sure device connected events are emitted
before other kinds of events, otherwise userspace will think there is
no baseband link yet and therefore abort the sockets associated with
that connection.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
netfilter: ipset: fix hash size checking in kernel
ptp_pch: Add missing #include <linux/slab.h>
pch_gbe: fix transmit races
cdc_ether: add Novatel USB551L device IDs for FLAG_WWAN
usbnet: fix skb traversing races during unlink(v2)
Bluetooth: mgmt: Fix device_connected sending order
Bluetooth: notify userspace of security level change
rtlwifi: fix for race condition when firmware is cached
This passes siginfo and mcontext to tilegx32 signal handlers that
don't have SA_SIGINFO set just as we have been doing for tilegx64.
Cc: stable@vger.kernel.org
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
First, we were at risk of handling thread-info flags, in particular
do_signal(), when returning from kernel space. This could happen
after a failed kernel_execve(), or when forking a kernel thread.
The fix is to test in do_work_pending() for user_mode() and return
immediately if so; we already had this test for one of the flags,
so I just hoisted it to the top of the function.
Second, if a ptraced process updated the callee-saved registers
in the ptregs struct and then processed another thread-info flag, we
would overwrite the modifications with the original callee-saved
registers. To fix this, we add a register to note if we've already
saved the registers once, and skip doing it on additional passes
through the loop. To avoid a performance hit from the couple of
extra instructions involved, I modified the GET_THREAD_INFO() macro
to be guaranteed to be one instruction, then bundled it with adjacent
instructions, yielding an overall net savings.
Reported-By: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
The hash size must fit both into u32 (jhash) and the max value of
size_t. The missing checking could lead to kernel crash, bug reported
by Seblu.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/ptp/ptp_pch.c: In function 'pch_remove':
drivers/ptp/ptp_pch.c:576:2: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration]
drivers/ptp/ptp_pch.c: In function 'pch_probe':
drivers/ptp/ptp_pch.c:587:2: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration]
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
...and add a "directio" synonym since that's what the manpage has
always advertised.
Acked-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
When handling the H_BULK_REMOVE hypercall, we were forgetting to
invalidate and unlock the hashed page table entry (HPTE) in the case
where the page had been paged out. This fixes it by clearing the
first doubleword of the HPTE in that case.
This fixes a regression introduced in commit a92bce95f0 ("KVM: PPC:
Book3S HV: Keep HPTE locked when invalidating"). The effect of the
regression is that the host kernel will sometimes hang when under
memory pressure.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
The code forgot to scramble the VSIDs the way we normally do
and was basically using the "proto VSID" directly with the MMU.
This means that in practice, KVM used random VSIDs that could
collide with segments used by other user space programs.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[agraf: simplify ppc32 case]
Signed-off-by: Alexander Graf <agraf@suse.de>
When jumping back into the kernel to code that knows that it would be
using HSRR registers instead of SRR registers, we need to make sure we
pass it all information on where to jump to in HSRR registers.
Unfortunately, we used r10 to store the information to distinguish between
the HSRR and SRR case. That register got clobbered in between though,
rendering the later comparison invalid.
Instead, let's use cr1 to store this information. That way we don't
need yet another register and everyone's happy.
This fixes PR KVM on POWER7 bare metal for me.
Signed-off-by: Alexander Graf <agraf@suse.de>
When running on a system that is HV capable, some interrupts use HSRR
SPRs instead of the normal SRR SPRs. These are also used in the Linux
handlers to jump back to code after an interrupt got processed.
Unfortunately, in our "jump back to the real host handler after we've
done the context switch" code, we were only setting the SRR SPRs,
rendering Linux to jump back to some invalid IP after it's processed
the interrupt.
This fixes random crashes on p7 opal mode with PR KVM for me.
Signed-off-by: Alexander Graf <agraf@suse.de>
In addition to normal "priviledged instruction" traps, we can also receive
"emulation assist" traps on newer hardware that has the HV bit set.
Handle that one the same way as a privileged instruction, including the
instruction fetching. That way we don't execute old instructions that we
happen to still leave in that field when an emul assist trap comes.
This fixes -M mac99 / -M g3beige on p7 bare metal for me.
Signed-off-by: Alexander Graf <agraf@suse.de>
John Linville says:
Here are three more fixes that some of my developers are desperate to
see included in 3.4...
Johan Hedberg went to some length justifyng the inclusion of these two
Bluetooth fixes:
"The device_connected fix should be quite self-explanatory, but it's
actually a wider issue than just for keyboards. All profiles that do
incoming connection authorization (e.g. headsets) will break without it
with specific hardware. The reason it wasn't caught earlier is that it
only occurs with specific Bluetooth adapters.
As for the security level patch, this fixes L2CAP socket based security
level elevation during a connection. The HID profile needs this (for
keyboards) and it is the only way to achieve the security level
elevation when using the management interface to talk to the kernel
(hence the management enabling patch being the one that exposes this"
The rtlwifi fix addresses a regression related to firmware loading,
as described in kernel.org bug 43187. It basically just moves a hunk
of code to a more appropriate place.
Signed-off-by: David S. Miller <davem@davemloft.net>
The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-and-Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-and-Tested-by: Tobias Ulmer <tobiasu@tmux.org>
Tested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some last minute fixes for ASoC. Small, focused changes to specific
drivers.
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Merge tag 'asoc-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Last minute fixes
Some last minute fixes for ASoC. Small, focused changes to specific
drivers.
Andy reported pch_gbe triggered "NETDEV WATCHDOG" errors.
May 11 11:06:09 kontron kernel: WARNING: at net/sched/sch_generic.c:261
dev_watchdog+0x1ec/0x200() (Not tainted)
May 11 11:06:09 kontron kernel: Hardware name: N/A
May 11 11:06:09 kontron kernel: NETDEV WATCHDOG: eth0 (pch_gbe):
transmit queue 0 timed out
It seems pch_gbe has a racy tx path (races with TX completion path)
Remove tx_queue_lock lock since it has no purpose, we must use tx_lock
instead.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andy Cress <andy.cress@us.kontron.com>
Tested-by: Andy Cress <andy.cress@us.kontron.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Needs to be tagged with FLAG_WWAN, which since it has generic
descriptors, won't happen if we don't override the generic
driver info.
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dan Williams <dcbw@redhat.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 4231d47e6fe69f061f96c98c30eaf9fb4c14b96d(net/usbnet: avoid
recursive locking in usbnet_stop()) fixes the recursive locking
problem by releasing the skb queue lock before unlink, but may
cause skb traversing races:
- after URB is unlinked and the queue lock is released,
the refered skb and skb->next may be moved to done queue,
even be released
- in skb_queue_walk_safe, the next skb is still obtained
by next pointer of the last skb
- so maybe trigger oops or other problems
This patch extends the usage of entry->state to describe 'start_unlink'
state, so always holding the queue(rx/tx) lock to change the state if
the referd skb is in rx or tx queue because we need to know if the
refered urb has been started unlinking in unlink_urbs.
The other part of this patch is based on Huajun's patch:
always traverse from head of the tx/rx queue to get skb which is
to be unlinked but not been started unlinking.
Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: Oliver Neukum <oneukum@suse.de>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Export handle_edge_irq() and irq_to_desc() to modules to allow them to
do things such as
__irq_set_handler_locked(...., handle_edge_irq);
This fixes
ERROR: "handle_edge_irq" [drivers/gpio/gpio-pch.ko] undefined!
ERROR: "irq_to_desc" [drivers/gpio/gpio-pch.ko] undefined!
when gpio-pch is being built as a module.
This was introduced by commit df9541a60a ("gpio: pch9: Use proper flow
type handlers") that added
__irq_set_handler_locked(d->irq, handle_edge_irq);
but handle_edge_irq() was not exported for modules (and inlined
__irq_set_handler_locked() requires irq_to_desc() exported as well)
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
BIOS on some HP laptops don't set the speaker-pins as fixed but expose
as jacks, and this confuses the driver as if these pins are
jack-detectable. As a result, the machine doesn't get sounds from
speakers because the driver prepares the power-map update via jack
unsol events which never come up in reality. The bug was introduced
in some time in 3.2 for enabling the power-mapping feature.
This patch fixes the problem by replacing the check of the persistent
power-map bits with a proper is_jack_detectable() call.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43240
Cc: <stable@vger.kernel.org> [v3.2+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull media fixes from Mauro Carvalho Chehab:
"For a some fix patches for v3.4, including a regression fix at DVB core"
Fix up trivial conflicts in Documentation/feature-removal-schedule.txt
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] gspca - sonixj: Fix a zero divide in isoc interrupt
[media] media: videobuf2-dma-contig: include header for exported symbols
[media] media: videobuf2-dma-contig: quiet sparse noise about plain integer as NULL pointer
[media] media: vb2-memops: Export vb2_get_vma symbol
[media] s5p-fimc: Correct memory allocation for VIDIOC_CREATE_BUFS
[media] s5p-fimc: Fix locking in subdev set_crop op
[media] dvb_frontend: fix a regression with DVB-S zig-zag
[media] fintek-cir: change || to &&
[media] V4L: Schedule V4L2_CID_HCENTER, V4L2_CID_VCENTER controls for removal
[media] rc: Postpone ISR registration
[media] marvell-cam: fix an ARM build error
[media] V4L: soc-camera: protect hosts during probing from overzealous user-space
Pull networking fixes from David Miller:
"The main purpose of this pull request is to fix up the erroneous
bonding patch I applied last round. I meant to apply v4 of the patch
from Jiri but I applied v3 by accident. Mea culpa.
Also, eagle eyed Dan Carpenter noticed that openvswitch has one of
those "X = alloc(); if (!Y)" mistakes, test the proper pointer
instead."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
openvswitch: checking wrong variable in queue_userspace_packet()
bonding: Fix LACPDU rx_dropped commit.
The mgmt_ev_device_connected signal must be sent before any event
indications happen for sockets associated with the connection. Otherwise
e.g. device authorization for the sockets will fail with ENOTCONN as
user space things that there is no baseband link.
This patch fixes the issue by ensuring that the device_connected event
if sent (if it hasn't been so already) as soon as the first ACL data
packet arrives from the remote device.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
It fixes L2CAP socket based security level elevation during a
connection. The HID profile needs this (for keyboards) and it is the only
way to achieve the security level elevation when using the management
interface to talk to the kernel (hence the management enabling patch
being the one that exposes this issue).
It enables the userspace a security level change when the socket is
already connected and create a way to notify the socket the result of the
request. At the moment of the request the socket is made non writable, if
the request fails the connections closes, otherwise the socket is made
writable again, POLL_OUT is emmited.
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
In commit b0302ab, the rtlwifi family of drivers was converted to use
asynchronous firmware loading. Unfortumately, the implementation was
racy, and the ieee80211 routines could be started before rtl_init_core()
was called to setup the data.
This patch fixes the bug noted in https://bugzilla.kernel.org/show_bug.cgi?id=43187.
Reported-by: Joshua Roys <Joshua.Roys@gtri.gatech.edu>
Tested-by: Neptune Ning <frostyplanet@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [3.3]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
3.4-rc introduced a regression when setting the LEDS. We do the right thing
but then return an error code.
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=43144
Reported-by: Christian Casteyde
Signed-off-by: Alan Cox <alan@linux/intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a nasty off-by-one bug in __rproc_free_vrings which
resulted in a memory leak and (for some platforms) failures
to reload the remote processor.
Signed-off-by: Subramaniam Chanderashekarapuram <subramaniam.ca@ti.com>
[ohad@wizery.com: reword commit log, stick with the for loop]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
"skb" is non-NULL here, for example we dereference it in skb_clone().
The intent was to test "nskb" which was just set.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I applied the wrong version of Jiri's bonding fix in commit
13a8e0c8cd ("bonding: don't increase
rx_dropped after processing LACPDUs")
I applied v3, which introduces warnings I asked him to fix,
instead of v4 which properly takes care of those issues.
This inter-diffs such that the warnings are now gone.
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix a lock ordering deadlock in JFFS2
- Fix an oops in the dataflash driver, triggered by a dummy call to test
whether it has OTP functionality.
- Fix request_mem_region() failure on amsdelta NAND driver.
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Merge tag 'for-linus-3.4-20120513' of git://git.infradead.org/linux-mtd
Pull three MTD fixes from David Woodhouse:
- Fix a lock ordering deadlock in JFFS2
- Fix an oops in the dataflash driver, triggered by a dummy call to test
whether it has OTP functionality.
- Fix request_mem_region() failure on amsdelta NAND driver.
* tag 'for-linus-3.4-20120513' of git://git.infradead.org/linux-mtd:
mtd: ams-delta: fix request_mem_region() failure
jffs2: Fix lock acquisition order bug in gc path
mtd: fix oops in dataflash driver
I was hoping to be done with fixes for 3.4 but we got two branches from
subarch maintainers the last couple of days. So here is one last(?) pull
request for arm-soc containing 7 patches:
- 5 of them are for shmobile dealing with SMP setup and compile failures
- The remaining two are for regressions on the Samsung platforms
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM: SoC fixes from Olof Johansson:
"I was hoping to be done with fixes for 3.4 but we got two branches
from subarch maintainers the last couple of days. So here is one
last(?) pull request for arm-soc containing 7 patches:
- Five of them are for shmobile dealing with SMP setup and compile
failures
- The remaining two are for regressions on the Samsung platforms"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1
ARM: EXYNOS: use s5p-timer for UniversalC210 board
ARM / mach-shmobile: Invalidate caches when booting secondary cores
ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix
ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix
ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper
ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
An OMAP bug fix, a set of PCH bug fixes, and one patch to fix up compile
warnings
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull a few more GPIO bug fixes from Grant Likely:
"Oops, missed a couple. Here's an updated pull req for GPIO"
A set of PCH bug fixes, and one patch to fix up compile warnings
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
gpio/exynos: Fix compiler warnings when non-exynos machines are selected
gpio: pch9: Use proper flow type handlers
* 'v3.4-samsung-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1
ARM: EXYNOS: use s5p-timer for UniversalC210 board
Commit 069d4e743 ("ARM: EXYNOS4: Remove clock event timers using
ARM private timers") removed support for local timers and forced
to use MCT as event source. However MCT is not operating properly
on early revision of EXYNOS4 SoCs. All UniversalC210 boards are
based on it, so that commit broke support for it. This patch
provides a workaround that enables UniversalC210 boards to boot
again. s5p-timer is used as an event source, it works only for
non-SMP builds.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
By Guennadi Liakhovetski (2) and others via Rafael J. Wysocki:
"[...] urgent fixes for Renesas ARM-based platforms. Four of these
commits are fixes of regressions new in 3.4-rc and the last one is
necessary for SMP to work on those systems in general."
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/renesas:
ARM / mach-shmobile: Invalidate caches when booting secondary cores
ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix
ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix
ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper
ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
Make sure L1 caches are invalidated when booting secondary
cores. Needed to boot all mach-shmobile SMP systems that
are using Cortex-A9 including sh73a0, r8a7779 and EMEV2.
Thanks to imx and tegra guys for actual code.
Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Fix SMP TWD boot regression on sh73a0 based platforms caused by:
4200b16 ARM: shmobile: convert to twd_local_timer_register() interface
After the merge of the above commit it has been impossible to boot
sh73a0 based SoCs with SMP enabled and CONFIG_HAVE_ARM_TWD=y. The
kernel crashes at smp_init_cpus() timing which is before the console
has been initialized, so to the user this looks like a kernel lock up
without any particular error message.
This patch fixes the regression on sh73a0 by moving the TWD
registration code from smp_init_cpus() to sys_timer->init() time.
This patch removed shmobile_twd_init() which is no longer needed
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
