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commit 754a292fe6b08196cb135c03b404444e17de520a upstream.
Add support for Marvell Technology Group Ltd. 88SE91A0 SATA 6Gb/s
Controller by adding its PCI ID.
Signed-off-by: Andreas Schrägle <ajs124.ajs124@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit d251836508fb26cd1a22b41381739835ee23728d upstream.
This device normally comes with a proprietary driver, using a web GUI
to configure RAID:
http://www.highpoint-tech.com/USA_new/series_rr600-download.htm
But thankfully it also works out of the box with the AHCI driver,
being just a Marvell 88SE9235.
Devices 640L, 644L, 644LS should also be supported but not tested here.
Signed-off-by: Jérôme Carretero <cJ-ko@zougloub.eu>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a6f9bf4d2f965b862b95213303d154e02957eed8 upstream.
When a ZPODD device is unbound via sysfs, the ACPI notify handler
is not removed. This causes panics as observed in Bug #74601. The
panic only happens when the wake happens from outside the kernel
(i.e. inserting a media or pressing a button). Add a loop to
ata_port_detach which loops through the port's devices and checks
if zpodd is enabled, if so call zpodd_exit.
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 27aa64b9d1bd0d23fd692c91763a48309b694311 upstream.
Add missing clk_put() call to ata_host_activate() failure path.
Sergei says,
"Hm, I have once fixed that (see that *if* (!ret)) but looks like a
later commit 477c87e90853d136b188c50c0e4a93d01cad872e (ARM:
at91/pata: use gpio_is_valid to check the gpio) broke it again. :-(
Would be good if the changelog did mention that..."
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8a4aeec8d2d6a3edeffbdfae451cdf05cbf0fefd upstream.
The AHCI spec allows implementations to issue commands in tag order
rather than FIFO order:
5.3.2.12 P:SelectCmd
HBA sets pSlotLoc = (pSlotLoc + 1) mod (CAP.NCS + 1)
or HBA selects the command to issue that has had the
PxCI bit set to '1' longer than any other command
pending to be issued.
The result is that commands posted sequentially (time-wise) may play out
of sequence when issued by hardware.
This behavior has likely been hidden by drives that arrange for commands
to complete in issue order. However, it appears recent drives (two from
different vendors that we have found so far) inflict out-of-order
completions as a matter of course. So, we need to take care to maintain
ordered submission, otherwise we risk triggering a drive to fall out of
sequential-io automation and back to random-io processing, which incurs
large latency and degrades throughput.
This issue was found in simple benchmarks where QD=2 seq-write
performance was 30-50% *greater* than QD=32 seq-write performance.
Tagging for -stable and making the change globally since it has a low
risk-to-reward ratio. Also, word is that recent versions of an unnamed
OS also does it this way now. So, drives in the field are already
experienced with this tag ordering scheme.
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ed Ciechanowski <ed.ciechanowski@intel.com>
Reviewed-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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M8 (2BA30001)
commit b28a613e9138e4b3a64649bd60b13436f4b4b49b upstream.
Via commit 87809942d3fa "libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk
for Seagate Momentus SpinPoint M8" we added a quirk for disks named
"ST1000LM024 HN-M101MBB" with firmware revision "2AR10001".
As reported on https://bugzilla.redhat.com/show_bug.cgi?id=1073901,
we need to also add firmware revision 2BA30001 as it is broken as well.
Reported-by: Nicholas <arealityfarbetween@googlemail.com>
Signed-off-by: Michele Baldessari <michele@acksyn.org>
Tested-by: Guilherme Amadio <guilherme.amadio@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9f9c47f00ce99329b1a82e2ac4f70f0fe3db549c upstream.
It's a bit odd to see a newer device showing mod15write; however, the
reported behavior is highly consistent and other factors which could
contribute seem to have been verified well enough. Also, both
sata_sil itself and the drive are fairly outdated at this point making
the risk of this change fairly low. It is possible, probably likely,
that other drive models in the same family have the same problem;
however, for now, let's just add the specific model which was tested.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: matson <lists-matsonpa@luxsci.me>
References: http://lkml.kernel.org/g/201401211912.s0LJCk7F015058@rs103.luxsci.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit efb9e0f4f43780f0ae0c6428d66bd03e805c7539 upstream.
Without the patch the kernel generates the following error.
ata11.15: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata11.15: Port Multiplier vendor mismatch '0x197b' != '0x123'
ata11.15: PMP revalidation failed (errno=-19)
ata11.15: failed to recover PMP after 5 tries, giving up
This patch helps to bypass this error and the device becomes
functional.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: <linux-ide@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 67809f85d31eac600f6b28defa5386c9d2a13b1d upstream.
Samsung's pci-e SSDs with device ID 0x1600 which are found on some
macbooks time out on NCQ commands. Blacklist NCQ on the device so
that the affected machines can at least boot.
Original-patch-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60731
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ecd75ad514d73efc1bbcc5f10a13566c3ace5f53 upstream.
For some reason, some early WD drives spin up and down drives
erratically when the link is put into slumber mode which can reduce
the life expectancy of the device significantly. Unfortunately, we
don't have full list of devices and given the nature of the issue it'd
be better to err on the side of false positives than the other way
around. Let's disable LPM on all WD devices which match one of the
known problematic model prefixes and are SATA-I.
As horkage list doesn't support matching SATA capabilities, this is
implemented as two horkages - WD_BROKEN_LPM and NOLPM. The former is
set for the known prefixes and sets the latter if the matched device
is SATA-I.
Note that this isn't optimal as this disables all LPM operations and
partial link power state reportedly works fine on these; however, the
way LPM is implemented in libata makes it difficult to precisely map
libata LPM setting to specific link power state. Well, these devices
are already fairly outdated. Let's just disable whole LPM for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Nikos Barkas <levelwol@gmail.com>
Reported-and-tested-by: Ioannis Barkas <risc4all@yahoo.com>
References: https://bugzilla.kernel.org/show_bug.cgi?id=57211
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9013d64e661fc2a37a1742670202171c27fef4b5 upstream.
On Armada 370/XP SoCs, once a disk is removed from a SATA port, then the
re-plug events are not detected by the sata_mv driver. This patch fixes
the issue by updating the PHY speed in the LP_PHY_CTL register (0x58)
according to the SControl speed.
Note that this fix is only applied if the compatible string
"marvell,armada-370-sata" is found in the SATA DT node.
Fixes: 9ae6f740b49f ("arm: mach-mvebu: add support for Armada 370 and Armada XP with DT")
Signed-off-by: Lior Amsalem <alior@marvell.com>
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b1f5c73bd5a4752efb7d7af019034044b08aafe9 upstream.
The sata_mv driver supports the SATA IP found in several Marvell SoCs.
As some new SATA registers have been introduced with the Armada 370/XP
SoCs, a way to identify them is needed.
This patch introduces a new compatible string for the SATA IP found in
Armada 370/XP SoCs.
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Lior Amsalem <alior@marvell.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e098f5cbe9d410e7878b50f524dce36cc83ec40e upstream.
This patch adds support for the PCI ID provided by the Marvell 88SE9170
SATA controller.
Signed-off-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 85fbd722ad0f5d64d1ad15888cd1eb2188bfb557 upstream.
Freezable kthreads and workqueues are fundamentally problematic in
that they effectively introduce a big kernel lock widely used in the
kernel and have already been the culprit of several deadlock
scenarios. This is the latest occurrence.
During resume, libata rescans all the ports and revalidates all
pre-existing devices. If it determines that a device has gone
missing, the device is removed from the system which involves
invalidating block device and flushing bdi while holding driver core
layer locks. Unfortunately, this can race with the rest of device
resume. Because freezable kthreads and workqueues are thawed after
device resume is complete and block device removal depends on
freezable workqueues and kthreads (e.g. bdi_wq, jbd2) to make
progress, this can lead to deadlock - block device removal can't
proceed because kthreads are frozen and kthreads can't be thawed
because device resume is blocked behind block device removal.
839a8e8660b6 ("writeback: replace custom worker pool implementation
with unbound workqueue") made this particular deadlock scenario more
visible but the underlying problem has always been there - the
original forker task and jbd2 are freezable too. In fact, this is
highly likely just one of many possible deadlock scenarios given that
freezer behaves as a big kernel lock and we don't have any debug
mechanism around it.
I believe the right thing to do is getting rid of freezable kthreads
and workqueues. This is something fundamentally broken. For now,
implement a funny workaround in libata - just avoid doing block device
hot[un]plug while the system is frozen. Kernel engineering at its
finest. :(
v2: Add EXPORT_SYMBOL_GPL(pm_freezing) for cases where libata is built
as a module.
v3: Comment updated and polling interval changed to 10ms as suggested
by Rafael.
v4: Add #ifdef CONFIG_FREEZER around the hack as pm_freezing is not
defined when FREEZER is not configured thus breaking build.
Reported by kbuild test robot.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Tomaž Šolc <tomaz.solc@tablix.org>
Reviewed-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=62801
Link: http://lkml.kernel.org/r/20131213174932.GA27070@htj.dyndns.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b8bd6dc36186fe99afa7b73e9e2d9a98ad5c4865 upstream.
A user on StackExchange had a failing SSD that's soldered directly
onto the motherboard of his system. The BIOS does not give any option
to disable it at all, so he can't just hide it from the OS via the
BIOS.
The old IDE layer had hdX=noprobe override for situations like this,
but that was never ported to the libata layer.
This patch implements a disable flag for libata.force.
Example use:
libata.force=2.0:disable
[v2 of the patch, removed the nodisable flag per Tejun Heo]
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: http://unix.stackexchange.com/questions/102648/how-to-tell-linux-kernel-3-0-to-completely-ignore-a-failing-disk
Link: http://askubuntu.com/questions/352836/how-can-i-tell-linux-kernel-to-completely-ignore-a-disk-as-if-it-was-not-even-co
Link: http://superuser.com/questions/599333/how-to-disable-kernel-probing-for-drive
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 966fbe193f47c68e70a80ec9991098e88e7959cb upstream.
Some device require DMADIR to be enabled, but are not detected as such
by atapi_id_dmadir. One such example is "Asus Serillel 2"
SATA-host-to-PATA-device bridge: the bridge itself requires DMADIR,
even if the bridged device does not.
As atapi_dmadir module parameter can cause problems with some devices
(as per Tejun Heo's memory), enabling it globally may not be possible
depending on the hardware.
This patch adds atapi_dmadir in the form of a "force" horkage value,
allowing global, per-bus and per-device control.
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 87809942d3fa60bafb7a58d0bdb1c79e90a6821d upstream.
We've received multiple reports in Fedora via (BZ 907193)
that the Seagate Momentus SpinPoint M8 errors out when enabling AA:
[ 2.555905] ata2.00: failed to enable AA (error_mask=0x1)
[ 2.568482] ata2.00: failed to enable AA (error_mask=0x1)
Add the ATA_HORKAGE_BROKEN_FPDMA_AA for this specific harddisk.
Reported-by: Nicholas <arealityfarbetween@googlemail.com>
Signed-off-by: Michele Baldessari <michele@acksyn.org>
Tested-by: Nicholas <arealityfarbetween@googlemail.com>
Acked-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 54b2b50c20a61b51199bedb6e5d2f8ec2568fb43 upstream.
Some host adapters do not pass commands through to the target disk
directly. Instead they provide an emulated target which may or may not
accurately report its capabilities. In some cases the physical device
characteristics are reported even when the host adapter is processing
commands on the device's behalf. This can lead to adapter firmware hangs
or excessive I/O errors.
This patch disables WRITE SAME for devices connected to host adapters
that provide an emulated target. Driver writers can disable WRITE SAME
by setting the no_write_same flag in the host adapter template.
[jejb: fix up rejections due to eh_deadline patch]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6d5278a68a75891db1df5ae1ecf83d288fc58c65 upstream.
Tested with a DAWICONTROL DC-624e on 3.10.10
Signed-off-by: Samir Benmendil <samir.benmendil@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 89dafa20f3daab5b3e0c13d0068a28e8e64e2102 upstream.
Tested with Marvell 88se9125, attached with one port mulitplier(5 ports)
and one disk, we will get following boot log messages if using current
code:
ata8: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier 1.2, 0x1b4b:0x9715 r160, 5 ports, feat 0x1/0x1f
ahci 0000:03:00.0: FBS is enabled
ata8.00: hard resetting link
ata8.00: SATA link down (SStatus 0 SControl 330)
ata8.01: hard resetting link
ata8.01: SATA link down (SStatus 0 SControl 330)
ata8.02: hard resetting link
ata8.02: SATA link down (SStatus 0 SControl 330)
ata8.03: hard resetting link
ata8.03: SATA link up 6.0 Gbps (SStatus 133 SControl 133)
ata8.04: hard resetting link
ata8.04: failed to resume link (SControl 133)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.04: failed to read SCR 1 (Emask=0x40)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.03: native sectors (2) is smaller than sectors (976773168)
ata8.03: ATA-8: ST3500413AS, JC4B, max UDMA/133
ata8.03: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32)
ata8.03: configured for UDMA/133
ata8.04: failed to IDENTIFY (I/O error, err_mask=0x100)
ata8.15: hard resetting link
ata8.15: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: hard resetting link
ata8.15: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: limiting SATA link speed to 3.0 Gbps
ata8.15: hard resetting link
ata8.15: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: failed to recover PMP after 5 tries, giving up
ata8.15: Port Multiplier detaching
ata8.03: disabled
ata8.00: disabled
ata8: EH complete
The reason is that current detection code doesn't follow AHCI spec:
First,the port multiplier detection process look like this:
ahci_hardreset(link, class, deadline)
if (class == ATA_DEV_PMP) {
sata_pmp_attach(dev) /* will enable FBS */
sata_pmp_init_links(ap, nr_ports);
ata_for_each_link(link, ap, EDGE) {
sata_std_hardreset(link, class, deadline);
if (link_is_online) /* do soft reset */
ahci_softreset(link, class, deadline);
}
}
But, according to chapter 9.3.9 in AHCI spec: Prior to issuing software
reset, software shall clear PxCMD.ST to '0' and then clear PxFBS.EN to
'0'.
The patch test ok with kernel 3.11.1.
tj: Patch white space contaminated, applied manually with trivial
updates.
Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9f961a5f6efc87a79571d7166257b36af28ffcfe upstream.
This patch adds the AHCI-mode SATA Device IDs for the Intel Wildcat Point-LP PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0523f037f65dba10191b0fa9c51266f90ba64630 upstream.
The "Slimtype DVD A DS8A9SH" drive locks up with following backtrace when
the max sector is smaller than 65535 bytes, fix it by adding a quirk to set
the max sector to 65535 bytes.
INFO: task flush-11:0:663 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
flush-11:0 D 00000000ffff5ceb 0 663 2 0x00000000
ffff88026d3b1710 0000000000000046 0000000000000001 0000000000000000
ffff88026f2530c0 ffff88026d365860 ffff88026d3b16e0 ffffffff812ffd52
ffff88026d4fd3d0 0000000100000001 ffff88026d3b16f0 ffff88026d3b1fd8
Call Trace:
[<ffffffff812ffd52>] ? cfq_may_queue+0x52/0xf0
[<ffffffff81604338>] schedule+0x18/0x30
[<ffffffff81604392>] io_schedule+0x42/0x60
[<ffffffff812f22bb>] get_request_wait+0xeb/0x1f0
[<ffffffff81065660>] ? autoremove_wake_function+0x0/0x40
[<ffffffff812eb382>] ? elv_merge+0x42/0x210
[<ffffffff812f26ae>] __make_request+0x8e/0x4e0
[<ffffffff812f068e>] generic_make_request+0x21e/0x5e0
[<ffffffff812f0aad>] submit_bio+0x5d/0xd0
[<ffffffff81141422>] submit_bh+0xf2/0x130
[<ffffffff8114474c>] __block_write_full_page+0x1dc/0x3a0
[<ffffffff81143f60>] ? end_buffer_async_write+0x0/0x120
[<ffffffff811474e0>] ? blkdev_get_block+0x0/0x70
[<ffffffff811474e0>] ? blkdev_get_block+0x0/0x70
[<ffffffff81143f60>] ? end_buffer_async_write+0x0/0x120
[<ffffffff811449ee>] block_write_full_page_endio+0xde/0x100
[<ffffffff81144a20>] block_write_full_page+0x10/0x20
[<ffffffff81148703>] blkdev_writepage+0x13/0x20
[<ffffffff810d7525>] __writepage+0x15/0x40
[<ffffffff810d7c0f>] write_cache_pages+0x1cf/0x3e0
[<ffffffff810d7510>] ? __writepage+0x0/0x40
[<ffffffff810d7e42>] generic_writepages+0x22/0x30
[<ffffffff810d7e6f>] do_writepages+0x1f/0x40
[<ffffffff8113ae67>] writeback_single_inode+0xe7/0x3b0
[<ffffffff8113b574>] writeback_sb_inodes+0x184/0x280
[<ffffffff8113bedb>] writeback_inodes_wb+0x6b/0x1a0
[<ffffffff8113c24b>] wb_writeback+0x23b/0x2a0
[<ffffffff8113c42d>] wb_do_writeback+0x17d/0x190
[<ffffffff8113c48b>] bdi_writeback_task+0x4b/0xe0
[<ffffffff810e82a0>] ? bdi_start_fn+0x0/0x100
[<ffffffff810e8321>] bdi_start_fn+0x81/0x100
[<ffffffff810e82a0>] ? bdi_start_fn+0x0/0x100
[<ffffffff8106522e>] kthread+0x8e/0xa0
[<ffffffff81039274>] ? finish_task_switch+0x54/0xc0
[<ffffffff81003334>] kernel_thread_helper+0x4/0x10
[<ffffffff810651a0>] ? kthread+0x0/0xa0
[<ffffffff81003330>] ? kernel_thread_helper+0x0/0x10
The above trace was triggered by
"dd if=/dev/zero of=/dev/sr0 bs=2048 count=32768"
Signed-off-by: Shan Hai <shan.hai@windriver.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3e85c3ecbc520751324a191d23bb94873ed01b10 upstream.
6.0 Gbps link speed was not decoded properly:
speed was reported at 3.0 Gbps only.
Tested: On a machine where libata reports 6.0 Gbps in
/var/log/messages:
ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Before:
cat /sys/class/ata_link/link1/sata_spd
3.0 Gbps
After:
cat /sys/class/ata_link/link1/sata_spd
6.0 Gbps
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f13e220161e738c2710b9904dcb3cf8bb0bcce61 upstream.
libata EH decrements scmd->retries when the command failed for reasons
unrelated to the command itself so that, for example, commands aborted
due to suspend / resume cycle don't get penalized; however,
decrementing scmd->retries isn't enough for ATA passthrough commands.
Without this fix, ATA passthrough commands are not resend to the
drive, and no error is signalled to the caller because:
- allowed retry count is 1
- ata_eh_qc_complete fill the sense data, so result is valid
- sense data is filled with untouched ATA registers.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8ffff94d20b7eb446e848e0046107d51b17a20a8 upstream.
Fixing support for the Silicon Image 3826 port multiplier, by applying
to it the same quirks applied to the Silicon Image 3726. Specifically
fixes the repeated timeout/reset process which previously afflicted
the 3726, as described from line 290. Slightly based on notes from:
https://bugzilla.redhat.com/show_bug.cgi?id=890237
Signed-off-by: Terry Suereth <terry.suereth@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 99bbdfa6bdcb4bdf5be914a48e9b46941bf30819 upstream.
Before this patch, I was seeing the following lockdep splat on my
MPC8315 (PPC32) target:
[ 9.086051] =================================
[ 9.090393] [ INFO: inconsistent lock state ]
[ 9.094744] 3.9.7-ajf-gc39503d #1 Not tainted
[ 9.099087] ---------------------------------
[ 9.103432] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
[ 9.109431] scsi_eh_1/39 [HC1[1]:SC0[0]:HE0:SE1] takes:
[ 9.114642] (&(&host->lock)->rlock){?.+...}, at: [<c02f4168>] sata_fsl_interrupt+0x50/0x250
[ 9.123137] {HARDIRQ-ON-W} state was registered at:
[ 9.128004] [<c006cdb8>] lock_acquire+0x90/0xf4
[ 9.132737] [<c043ef04>] _raw_spin_lock+0x34/0x4c
[ 9.137645] [<c02f3560>] fsl_sata_set_irq_coalescing+0x68/0x100
[ 9.143750] [<c02f36a0>] sata_fsl_init_controller+0xa8/0xc0
[ 9.149505] [<c02f3f10>] sata_fsl_probe+0x17c/0x2e8
[ 9.154568] [<c02acc90>] driver_probe_device+0x90/0x248
[ 9.159987] [<c02acf0c>] __driver_attach+0xc4/0xc8
[ 9.164964] [<c02aae74>] bus_for_each_dev+0x5c/0xa8
[ 9.170028] [<c02ac218>] bus_add_driver+0x100/0x26c
[ 9.175091] [<c02ad638>] driver_register+0x88/0x198
[ 9.180155] [<c0003a24>] do_one_initcall+0x58/0x1b4
[ 9.185226] [<c05aeeac>] kernel_init_freeable+0x118/0x1c0
[ 9.190823] [<c0004110>] kernel_init+0x18/0x108
[ 9.195542] [<c000f6b8>] ret_from_kernel_thread+0x64/0x6c
[ 9.201142] irq event stamp: 160
[ 9.204366] hardirqs last enabled at (159): [<c043f778>] _raw_spin_unlock_irq+0x30/0x50
[ 9.212469] hardirqs last disabled at (160): [<c000f414>] reenable_mmu+0x30/0x88
[ 9.219867] softirqs last enabled at (144): [<c002ae5c>] __do_softirq+0x168/0x218
[ 9.227435] softirqs last disabled at (137): [<c002b0d4>] irq_exit+0xa8/0xb4
[ 9.234481]
[ 9.234481] other info that might help us debug this:
[ 9.240995] Possible unsafe locking scenario:
[ 9.240995]
[ 9.246898] CPU0
[ 9.249337] ----
[ 9.251776] lock(&(&host->lock)->rlock);
[ 9.255878] <Interrupt>
[ 9.258492] lock(&(&host->lock)->rlock);
[ 9.262765]
[ 9.262765] *** DEADLOCK ***
[ 9.262765]
[ 9.268684] no locks held by scsi_eh_1/39.
[ 9.272767]
[ 9.272767] stack backtrace:
[ 9.277117] Call Trace:
[ 9.279589] [cfff9da0] [c0008504] show_stack+0x48/0x150 (unreliable)
[ 9.285972] [cfff9de0] [c0447d5c] print_usage_bug.part.35+0x268/0x27c
[ 9.292425] [cfff9e10] [c006ace4] mark_lock+0x2ac/0x658
[ 9.297660] [cfff9e40] [c006b7e4] __lock_acquire+0x754/0x1840
[ 9.303414] [cfff9ee0] [c006cdb8] lock_acquire+0x90/0xf4
[ 9.308745] [cfff9f20] [c043ef04] _raw_spin_lock+0x34/0x4c
[ 9.314250] [cfff9f30] [c02f4168] sata_fsl_interrupt+0x50/0x250
[ 9.320187] [cfff9f70] [c0079ff0] handle_irq_event_percpu+0x90/0x254
[ 9.326547] [cfff9fc0] [c007a1fc] handle_irq_event+0x48/0x78
[ 9.332220] [cfff9fe0] [c007c95c] handle_level_irq+0x9c/0x104
[ 9.337981] [cfff9ff0] [c000d978] call_handle_irq+0x18/0x28
[ 9.343568] [cc7139f0] [c000608c] do_IRQ+0xf0/0x1a8
[ 9.348464] [cc713a20] [c000fc8c] ret_from_except+0x0/0x14
[ 9.353983] --- Exception: 501 at _raw_spin_unlock_irq+0x40/0x50
[ 9.353983] LR = _raw_spin_unlock_irq+0x30/0x50
[ 9.364839] [cc713af0] [c043db10] wait_for_common+0xac/0x188
[ 9.370513] [cc713b30] [c02ddee4] ata_exec_internal_sg+0x2b0/0x4f0
[ 9.376699] [cc713be0] [c02de18c] ata_exec_internal+0x68/0xa8
[ 9.382454] [cc713c20] [c02de4b8] ata_dev_read_id+0x158/0x594
[ 9.388205] [cc713ca0] [c02ec244] ata_eh_recover+0xd88/0x13d0
[ 9.393962] [cc713d20] [c02f2520] sata_pmp_error_handler+0xc0/0x8ac
[ 9.400234] [cc713dd0] [c02ecdc8] ata_scsi_port_error_handler+0x464/0x5e8
[ 9.407023] [cc713e10] [c02ecfd0] ata_scsi_error+0x84/0xb8
[ 9.412528] [cc713e40] [c02c4974] scsi_error_handler+0xd8/0x47c
[ 9.418457] [cc713eb0] [c004737c] kthread+0xa8/0xac
[ 9.423355] [cc713f40] [c000f6b8] ret_from_kernel_thread+0x64/0x6c
This fix was suggested by Bhushan Bharat <R65777@freescale.com>, and
was discussed in email at:
http://linuxppc.10917.n7.nabble.com/MPC8315-reboot-failure-lockdep-splat-possibly-related-tp75162.html
Same patch successfully tested with 3.9.7. linux-next compiled but
not tested on hardware.
This patch is based off linux-next tag next-20130819
(which is commit 66a01bae29d11916c09f9f5a937cafe7d402e4a5 )
Signed-off-by: Anthony Foiani <anthony.foiani@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit bb9696192826a7d9279caf872e95b41bc26c7eff upstream.
sata_inic162x never reached a state where it's reliable enough for
production use and data corruption is a relatively common occurrence.
Make the driver generate warning about the issues and mark the Kconfig
option as experimental.
If the situation doesn't improve, we'd be better off making it depend
on CONFIG_BROKEN. Let's wait for several cycles and see if the kernel
message draws any attention.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Martin Braure de Calignon <braurede@free.fr>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Reported-by: risc4all@yahoo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit eac27f04a71e1f39f196f7e520d16dcefc955d77 upstream.
There is a patch b55f84e2d527182e7c611d466cd0bb6ddce201de "ata_piix: Fix DVD
not dectected at some Haswell platforms" to fix an issue of DVD not
recognized on Haswell Desktop platform with Lynx Point.
Recently, it is also found the same issue at some platformas with Wellsburg PCH.
So deliver a similar patch to fix it by disables 32bit PIO in IDE mode.
Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ddfef5de3d716f77bad32dbbba6b280158dfd721 upstream.
Increase the retry count for the hard reset function to 100 but
shorten the time out period to 500 ms. See the comment for
ahci_highbank_hardreset for the reasons why those vaulues were
chosen.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit c7e8695bfa0611b39493a9dfe8bab9f63f9809bd upstream.
This patch adds the IDE-mode SATA DeviceIDs for the Intel Coleto Creek PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7a87718d92760fc688628ad6a430643dafa16f1f upstream.
For some reason, a lot of port-multipliers have issues with softreset.
SIMG [34]7x series port-multipliers have been quite erratic in this
regard. I recall that it was better with some firmware revisions and
the current list of quirks worked fine for a while. I think it got
worse with later firmwares or maybe my test coverage wasn't good
enough. Anyways, HPA is reporting that his 3726 setup suffers SRST
failures and then the PMP gets confused and fails to probe the last
port.
The hope was that we try to stick to the standard as much as possible
and soonish the PMPs and their firmwares will improve in quality, so
the quirk list was kept to minimum. Well, it seems like that's never
gonna happen.
Let's set NO_SRST for all [34]7x PMPs so that whatever remaining
userbase of the device suffer the least. Maybe we should do the same
for 57xx's but unfortunately I don't have any device left to test and
I'm not even sure 57xx's have ever been made widely available, so
let's leave those alone for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit d0887c43f51c308b01605346e55d906ba858a6f9 upstream.
There are some SATA controllers which have both devices 0 and 1 but this module
just zeroes out taskfile and sets then ATA_TFLAG_DEVICE (not sure that's needed)
which could lead to a wrong device being selected just before issuing command.
Thus we should call ata_tf_init() which sets up the device register value
properly, like all other users of ata_exec_internal() do...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 912b9ac683b112615d5605686f1dc086402ce9f7 upstream.
ata_link_online() check in ahci_error_intr() is unnecessary, it should
be removed otherwise may lead to lockup with FBS enabled PMP.
http://marc.info/?l=linux-ide&m=137050421603272&w=2
Reported-by: Yu Liu <liuyu.ac@gmail.com>
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1cfc7df3de10c40ed459e13cce6de616023bf41c upstream.
This patch adds the AHCI-mode SATA DeviceIDs for the Intel Coleto Creek PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fafe5c3d82a470d73de53e6b08eb4e28d974d895 upstream.
To add AMD CZ SATA controller device ID of IDE mode.
[bhelgaas: drop pci_ids.h update]
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 30dcf76acc69 "libata: migrate ACPI code over to new bindings"
mistakenly dropped the code to register hotplug notificaion handler
for ATA port/devices, causing regression for people using ATA bay,
as kernel bug #59871 shows.
Fix this by adding back the hotplug notification handler registration
code. Since this code has to be run once and notification needs to
be installed on every ATA port/devices handle no matter if there is
actual device attached, we can't do this in binding time for ATA
device ACPI handle, as the binding only occurs when a SCSI device is
created, i.e. there is device attached. So introduce the
ata_acpi_hotplug_init() function to loop scan all ATA ACPI handles
and if it is available, install the notificaion handler for it during
ATA init time.
With the ATA ACPI handle binding to SCSI device tree, it is possible
now that when the SCSI hotplug work removes the SCSI device, the ACPI
unbind function will find that the corresponding ACPI device has
already been deleted by dock driver, causing a scaring message like:
[ 128.263966] scsi 4:0:0:0: Oops, 'acpi_handle' corrupt
Fix this by waiting for SCSI hotplug task finish in our notificaion
handler, so that the removal of ACPI device done in ACPI unbind
function triggered by the removal of SCSI device is run earlier when
ACPI device is still available.
[rjw: Rebased]
References: https://bugzilla.kernel.org/show_bug.cgi?id=59871
Reported-bisected-and-tested-by: Dirk Griesbach <spamthis@freenet.de>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: 3.6+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata changes from Tejun Heo:
"Nothing too interesting. PCI ID additions, some sata_rcar fixes and a
fringe bug fix for DMADIR handling which shouldn't affect any device
remotely modern."
* 'for-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
sata_rcar: fix interrupt handling
ahci: add an observed PCI ID for Marvell 88se9172 SATA controller
sata_rcar: clear STOP bit in bmdma_start() method
libata: make ata_exec_internal_sg honor DMADIR
ata_piix: add PCI IDs for Intel BayTail
libata: update "Maintained by:" tags
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The driver's interrupt handling code is too picky in deciding whether it should
handle an interrupt or not which causes completely unneeded spurious interrupts.
Thus make sata_rcar_{ata|serr}_interrupt() *void*; add ATA status register read
to sata_rcar_ata_interrupt() to clear an unexpected ATA interrupt -- it doesn't
get cleared by writing to the SATAINTSTAT register in the interrupt mode we use.
Also, in sata_rcar_ata_interrupt() we should check SATAINTSTAT register only for
enabled interrupts and we should clear only those interrupts that we have read
as active first time around, because else we have a race and risk clearing an
interrupt that can occur between read and write of the SATAINTSTAT register
and never registering it...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
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A third possible PCI ID, as personally observed, and found in the
pci.ids list.
Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Iff bmdma_setup() has to stop a DMA transfer before starting a new
one, then the STOP bit in the ATAPI_CONTROL1 register will remain set
(it's only cleared when setting the START bit to 1) and then
bmdma_start() method will set both START and STOP bits simultaneously
which should abort the transfer being just started. Avoid that by
explicitly clearing the STOP bit in bmdma_start() method (in this case
it will be ignored on write).
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
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libata honors DMADIR for regular commands, but not for internal commands
used (among other) during device initialisation.
This makes SATA-host-to-PATA-device bridges based on Silicon Image SiL3611
(such as "Abit Serillel 2") end up disabled when used with an ATAPI device
after a few tries.
Log output of the bridge being hot-plugged with an ATAPI drive:
[ 9631.212901] ata1: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe frozen
[ 9631.212913] ata1: irq_stat 0x00000040, connection status changed
[ 9631.212923] ata1: SError: { CommWake 10B8B DevExch }
[ 9631.212939] ata1: hard resetting link
[ 9632.104962] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 9632.106393] ata1.00: ATAPI: PIONEER DVD-RW DVR-115, 1.06, max UDMA/33
[ 9632.106407] ata1.00: applying bridge limits
[ 9632.108151] ata1.00: configured for UDMA/33
[ 9637.105303] ata1.00: qc timeout (cmd 0xa0)
[ 9637.105324] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
[ 9637.105335] ata1: hard resetting link
[ 9638.044599] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 9638.047878] ata1.00: configured for UDMA/33
[ 9643.044933] ata1.00: qc timeout (cmd 0xa0)
[ 9643.044953] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
[ 9643.044963] ata1: limiting SATA link speed to 1.5 Gbps
[ 9643.044971] ata1.00: limiting speed to UDMA/33:PIO3
[ 9643.044979] ata1: hard resetting link
[ 9643.984225] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 9643.987471] ata1.00: configured for UDMA/33
[ 9648.984591] ata1.00: qc timeout (cmd 0xa0)
[ 9648.984612] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
[ 9648.984619] ata1.00: disabled
[ 9649.000593] ata1: hard resetting link
[ 9649.939902] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 9649.955864] ata1: EH complete
With this patch, the drive enumerates correctly when libata is loaded with
atapi_dmadir=1:
[ 9891.810863] ata1: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe frozen
[ 9891.810874] ata1: irq_stat 0x00000040, connection status changed
[ 9891.810884] ata1: SError: { CommWake 10B8B DevExch }
[ 9891.810900] ata1: hard resetting link
[ 9892.762105] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 9892.763544] ata1.00: ATAPI: PIONEER DVD-RW DVR-115, 1.06, max UDMA/33, DMADIR
[ 9892.763558] ata1.00: applying bridge limits
[ 9892.765393] ata1.00: configured for UDMA/33
[ 9892.786063] ata1: EH complete
[ 9892.792062] scsi 0:0:0:0: CD-ROM PIONEER DVD-RW DVR-115 1.06 PQ: 0 ANSI: 5
[ 9892.798455] sr2: scsi3-mmc drive: 12x/12x writer dvd-ram cd/rw xa/form2 cdda tray
[ 9892.798837] sr 0:0:0:0: Attached scsi CD-ROM sr2
[ 9892.799109] sr 0:0:0:0: Attached scsi generic sg6 type 5
Based on a patch by Csaba Halász <csaba.halasz@gmail.com> on linux-ide:
http://marc.info/?l=linux-ide&m=136121147832295&w=2
tj: minor formatting changes.
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
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Adds IDE-mode SATA Device IDs for the Intel BayTrail platform.
Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
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Jeff moved on to a greener pasture.
s/Maintained by: Jeff Garzik/Maintained by: Tejun Heo/g
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
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devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late cleanups from Arnd Bergmann:
"These are cleanups and smaller changes that either depend on earlier
feature branches or came in late during the development cycle. We
normally try to get all cleanups early, so these are the exceptions:
- A follow-up on the clocksource reworks, hopefully the last time we
need to merge clocksource subsystem changes through arm-soc.
A first set of patches was part of the original 3.10 arm-soc
cleanup series because of interdependencies with timer drivers now
moved out of arch/arm.
- Migrating the SPEAr13xx platform away from using auxdata for DMA
channel descriptions towards using information in device tree,
based on the earlier SPEAr multiplatform series
- A few follow-ups on the Atmel SAMA5 support and other changes for
Atmel at91 based on the larger at91 reworks.
- Moving the armada irqchip implementation to drivers/irqchip
- Several OMAP cleanups following up on the larger series already
merged in 3.10."
* tag 'cleanup-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
ARM: OMAP4: change the device names in usb_bind_phy
ARM: OMAP2+: Fix mismerge for timer.c between ff931c82 and da4a686a
ARM: SPEAr: conditionalize SMP code
ARM: arch_timer: Silence debug preempt warnings
ARM: OMAP: remove unused variable
serial: amba-pl011: fix !CONFIG_DMA_ENGINE case
ata: arasan: remove the need for platform_data
ARM: at91/sama5d34ek.dts: remove not needed compatibility string
ARM: at91: dts: add MCI DMA support
ARM: at91: dts: add i2c dma support
ARM: at91: dts: set #dma-cells to the correct value
ARM: at91: suspend both memory controllers on at91sam9263
irqchip: armada-370-xp: slightly cleanup irq controller driver
irqchip: armada-370-xp: move IRQ handler to avoid forward declaration
irqchip: move IRQ driver for Armada 370/XP
ARM: mvebu: move L2 cache initialization in init_early()
devtree: add binding documentation for sp804
ARM: integrator-cp: convert use CLKSRC_OF for timer init
ARM: versatile: use OF init for sp804 timer
ARM: versatile: add versatile dtbs to dtbs target
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
Pull libata update from Jeff Garzik:
- More ACPI fixes, cleanups
- Minor cleanups for sata_highbank, pata_at32, pata_octeon_cf,
sata_rcar
- pata_legacy: small bug found in opti chipset code (untested fix, due
to ancient h/w)
- sata_fsl: RX water mark config knob, some h/w needs it
- pata_imx: cleanups, DeviceTree support
- SCSI<->ATA translator: properly export translator version, not device
firmware version
* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
sata_highbank: Rename proc_name to the module name
ACPI/libata: Restore libata.noacpi support
[libata] acpi: make ata_ap_acpi_handle not block
[libata] SCSI: really use SATL version in VPD
pata_imx: add devicetree support
pata_imx: use void __iomem * for regs
pata_imx: cleanup error path
pata_imx: Use devm_clk_get
sata_rcar: Convert to devm_ioremap_resource()
fsl/sata: create a sysfs entry for rx water mark
libata-acpi: remove redundent code for power resource handling
sata_highbank: make ahci_highbank_pm_ops static
pata_octeon_cf: Use resource_size function
pata_legacy: bogus clock in opti82c46x_set_piomode()
pata_at32: use module_platform_driver_probe()
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mkinitrd looks at /sys/class/scsi_host/host$hostnum/proc_name to find
the module name of a disk driver. Current name is "highbank-ahci" but
the module is "sata_highbank". Rename it to match the module name.
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: <stable@vger.kernel.org> v3.7..
Signed-off-by: Robert Richter <robert.richter@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This patch restores libata.noacpi support to libata-acpi.c.
There are broken optional control methods for ATA controller devices in the
real world. The libata.noacpi has been used for a long time as a
workaround to deal with issues caused by the broken ASL codes.
1. The "noacpi" option is introduced by the following commit:
commit 11ef697b37e3c85ce1ac21f7711babf1f5b12784
Date: Thu, 28 Sep 2006 11:29:01 -0700
Subject: libata: ACPI and _GTF support
2. The "noacpi" option is renamed to "libata_noacpi" by the following
commit:
commit d7d0dad62a641c156386288a747c1a2f6bb2e42d
Date: Wed, 28 Mar 2007 01:57:37 -0400
Subject: [libata] Disable ACPI by default; fix namespace problems
3. Some of its logics are changed over time - becomes relying on the
"acpi_handle" bound to the ATA devices since this commit:
commit fafbae87db88a73b166d3bc3294d209207f27056
Date: Tue, 15 May 2007 03:28:16 +0900
Subject: libata-acpi: implement ata_acpi_associate()
4. The option is deleted by the following commit:
commit 30dcf76acc695cbd2fa919e294670fe9552e16e7
Date: Mon, 25 Jun 2012 16:13:04 +0800
Subject: libata: migrate ACPI code over to new bindings
But the libata.noacpi setup is still left in the kernel without codes to
implement it. So the deletion introduces a regression to the Linux.
This patch disables ATA_ACPI support at runtime by stopping acpi binding
on the ATA devices to fix this regression.
This patch is tested by booting a SATA x86-64 kernel or a PATA x86 kernel
with or without "libata.noacpi=1" kernel command line argument.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Since commit 30dcf76acc, ata_ap_acpi_handle will always do a namespace
walk, which requires acquiring an acpi namespace mutex. This made it
impossible to be used when calling path has held a spinlock.
For example, it can occur in the following code path for pata_acpi:
ata_scsi_queuecmd (ap->lock is acquired)
__ata_scsi_queuecmd
ata_scsi_translate
ata_qc_issue
pacpi_qc_issue
ata_acpi_stm
ata_ap_acpi_handle
acpi_get_child
acpi_walk_namespace
acpi_ut_acquire_mutex (acquire mutex while holding lock)
This caused scheduling while atomic bug, as reported in bug #56781.
Actually, ata_ap_acpi_handle doesn't have to walk the namespace every
time it is called, it can simply return the bound acpi handle on the
corresponding SCSI host. The reason previously it is not done this way
is, ata_ap_acpi_handle is used in the binding function
ata_acpi_bind_host by ata_acpi_gtm when the handle is not bound to the
SCSI host yet. Since we already have the ATA port's handle in its
binding function, we can simply use it instead of calling
ata_ap_acpi_handle there. So introduce a new function __ata_acpi_gtm,
where it will receive an acpi handle param in addition to the ATA port
which is solely used for debug statement. With this change, we can make
ata_ap_acpi_handle simply return the bound handle for SCSI host instead
of walking the acpi namespace now.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=56781
Reported-and-tested-by: <kenzopl@o2.pl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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