* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: ahci_start_engine compliant to AHCI spec
ata: pata_at91.c bugfix for initial_timing initialisation
ata: pata_at91.c bugfix for high master clock
ahci: AHCI-mode SATA patch for Intel Panther Point DeviceIDs
ata_piix: IDE-mode SATA patch for Intel Panther Point DeviceIDs
libata: Pioneer DVR-216D can't do SETXFER
ahci: don't enable port irq before handler is registered
libata: Implement ATA_FLAG_NO_DIPM and apply it to mcp65
libata: Kill unused ATA_DFLAG_{H|D}IPM flags
ahci: EM supported message type sysfs attribute
* 'for-linus' of git://git.infradead.org/ubifs-2.6:
UBIFS: fix master node recovery
UBIFS: fix false assertion warning in case of I/O failures
UBIFS: fix false space checking failure
At the end of section 10.1 of AHCI spec (rev 1.3), it states
Software shall not set PxCMD.ST to 1 until it is determined that
a functoinal device is present on the port as determined by
PxTFD.STS.BSY=0, PxTFD.STS.DRQ=0 and PxSSTS.DET=3h
Even though most AHCI host controller works without this check,
specific controller will fail under this condition.
Signed-off-by: Jian Peng <jipeng2005@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The "struct ata_timing" must contain 10 members, but ".dmack_hold" member was
forgotten for "initial_timing" initialisation. This patch fixes such a problem.
Signed-off-by: Igor Plyatov <plyatov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The AT91SAM9 microcontrollers with master clock higher then 105 MHz
and PIO0, have overflow of the NCS_RD_PULSE value in the MSB. This
lead to "NCS_RD_PULSE" pulse longer then "NRD_CYCLE" pulse and driver
does not detect ATA device.
Signed-off-by: Igor Plyatov <plyatov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The previously submitted patch was word-wrapped.
This patch adds the AHCI-mode SATA DeviceIDs for the Intel Panther Point PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The previously submitted patch was word-wrapped.
This patch adds the IDE-mode SATA DeviceIDs for the Intel Panther
Point PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Commit 4a5610a04d fixed an issue with
the Pioneer DVR-212D not handling SETXFER correctly. An openSUSE user
reported a similar issue with his DVR-216D that the NOSETXFER horkage
worked around for him as well.
This patch adds the DVR-216D (1.08) to the horkage list for NOSETXFER.
The issue was reported at:
https://bugzilla.novell.com/show_bug.cgi?id=679143
Reported-by: Volodymyr Kyrychenko <vladimir.kirichenko@gmail.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The ahci_pmp_attach() & ahci_pmp_detach() unmask port irqs, but they
are also called during port initialization, before ahci host irq
handler is registered. On ce4100 platform, this sometimes triggers
"irq 4: nobody cared" message when loading driver.
Fixed this by not touching the register if the port is in frozen
state, and mark all uninitialized port as frozen.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This patch adds an sysfs attribute 'em_message_supported' to the
ahci host device which prints out the supported enclosure management
message types.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Commit 40aee729b3 ('kconfig: fix default value for choice input')
fixed some cases where kconfig would select the wrong option from a
choice with a single valid option and thus enter an infinite loop.
However, this broke the test for user input of the form 'N?', because
when kconfig selects the single valid option the input is zero-length
and the test will read the byte before the input buffer. If this
happens to contain '?' (as it will in a mips build on Debian unstable
today) then kconfig again enters an infinite loop.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@kernel.org [2.6.17+]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It's a useless abstraction for 'hlist_bl_head', and it doesn't actually
help anything - quite the reverse. All the users end up having to know
about the hlist_bl_head details anyway, using 'struct hlist_bl_node *'
etc. So it just makes the code look confusing.
And the cost of it is extra '&b->head' syntactic noise, but more
importantly it spuriously makes the hash table dentry list look
different from the per-superblock DCACHE_DISCONNECTED dentry list.
As a result, the code ended up using ad-hoc locking for one case and
special helper functions for what is really another totally identical
case in the very same function.
Make it all look and work the same.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
tty/n_gsm: fix bug in CRC calculation for gsm1 mode
serial/imx: read cts state only after acking cts change irq
parport_pc.c: correctly release the requested region for the IT887x
Right now all RCU walks fall back to reference walk when CONFIG_SECURITY
is enabled, even though just the standard capability module is active.
This is because security_inode_exec_permission unconditionally fails
RCU walks.
Move this decision to the low level security module. This requires
passing the RCU flags down the security hook. This way at least
the capability module and a few easy cases in selinux/smack work
with RCU walks with CONFIG_SECURITY=y
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Fix unused warnings when !SND_HDA_NEEDS_RESUME
ALSA: hda - Add a fix-up for Acer dmic with ALC271x codec
ASoC: add a module alias to the FSI driver
ALSA: emu10k1 - Fix "Music" controls to "Synth" controls in documents
ARM: s3c2440: gta02; Register dfbmcs320 device for BT audio interface
ASoC: codecs: JZ4740: Fix OOPS
ASoC: Fix output PGA enabling in wm_hubs CODECs
ASoC: sn95031: decorate function with __devexit_p()
ASoC: SAMSUNG: Fix the inverted clocks handling for pcm driver
ASoC: sst_platform: Fix lock acquring
ASoC: fsi: driver safely remove for against irq
ASoC: fsi: modify vague PM control on probe
ASoC: fsi: take care in failing case of dai register
MAINTAINERS: Update Samsung ASoC maintainer's id
ASoC: WM8903: HP and Line out PGA/mixer DAPM fixes
ASoC: Set left channel volume update bits for WM8994
ASoC: fix config error path
ASoC: check channel mismatch between cpu_dai and codec_dai
ASoC: Tegra: Suspend/resume support
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf, x86: Update/fix Intel Nehalem cache events
perf, x86: P4 PMU - Don't forget to clear cpuc->active_mask on overflow
x86, perf event: Turn off unstructured raw event access to offcore registers
perf: Support Xeon E7's via the Westmere PMU driver
Andi Kleen pointed out that the Intel offcore support patches were merged
without user-space tool support to the functionality:
|
| The offcore_msr perf kernel code was merged into 2.6.39-rc*, but the
| user space bits were not. This made it impossible to set the extra mask
| and actually do the OFFCORE profiling
|
Andi submitted a preliminary patch for user-space support, as an
extension to perf's raw event syntax:
|
| Some raw events -- like the Intel OFFCORE events -- support additional
| parameters. These can be appended after a ':'.
|
| For example on a multi socket Intel Nehalem:
|
| perf stat -e r1b7:20ff -a sleep 1
|
| Profile the OFFCORE_RESPONSE.ANY_REQUEST with event mask REMOTE_DRAM_0
| that measures any access to DRAM on another socket.
|
But this kind of usability is absolutely unacceptable - users should not
be expected to type in magic, CPU and model specific incantations to get
access to useful hardware functionality.
The proper solution is to expose useful offcore functionality via
generalized events - that way users do not have to care which specific
CPU model they are using, they can use the conceptual event and not some
model specific quirky hexa number.
We already have such generalization in place for CPU cache events,
and it's all very extensible.
"Offcore" events measure general DRAM access patters along various
parameters. They are particularly useful in NUMA systems.
We want to support them via generalized DRAM events: either as the
fourth level of cache (after the last-level cache), or as a separate
generalization category.
That way user-space support would be very obvious, memory access
profiling could be done via self-explanatory commands like:
perf record -e dram ./myapp
perf record -e dram-remote ./myapp
... to measure DRAM accesses or more expensive cross-node NUMA DRAM
accesses.
These generalized events would work on all CPUs and architectures that
have comparable PMU features.
( Note, these are just examples: actual implementation could have more
sophistication and more parameter - as long as they center around
similarly simple usecases. )
Now we do not want to revert *all* of the current offcore bits, as they
are still somewhat useful for generic last-level-cache events, implemented
in this commit:
e994d7d23a: perf: Fix LLC-* events on Intel Nehalem/Westmere
But we definitely do not yet want to expose the unstructured raw events
to user-space, until better generalization and usability is implemented
for these hardware event features.
( Note: after generalization has been implemented raw offcore events can be
supported as well: there can always be an odd event that is marginally
useful but not useful enough to generalize. DRAM profiling is definitely
*not* such a category so generalization must be done first. )
Furthermore, PERF_TYPE_RAW access to these registers was not intended
to go upstream without proper support - it was a side-effect of the above
e994d7d23a commit, not mentioned in the changelog.
As v2.6.39 is nearing release we go for the simplest approach: disable
the PERF_TYPE_RAW offcore hack for now, before it escapes into a released
kernel and becomes an ABI.
Once proper structure is implemented for these hardware events and users
are offered usable solutions we can revisit this issue.
Reported-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1302658203-4239-1-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
ide: unexport DISK_EVENT_MEDIA_CHANGE for ide-gd and ide-cd
block: don't propagate unlisted DISK_EVENTs to userland
elevator: check for ELEVATOR_INSERT_SORT_MERGE in !elvpriv case too
Linus Torvalds
Jian Peng
Igor Plyatov
Seth Heasley
Jeff Mahoney
Maxime Bizon
Tejun Heo
Hannes Reinecke
Ben Hutchings
Andi Kleen
Peter Zijlstra
Cyrill Gorcunov
Ingo Molnar