Граф коммитов

362249 Коммитов

Автор SHA1 Сообщение Дата
Linus Torvalds 53b6809248 Small batch of InfiniBand/RDMA fixes for 3.9:
- Fix for TX lockup in IPoIB
  - QLogic -> Intel update for qib driver
  - Small static checker fix for qib
  - Fix error path return value in cxgb4
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABCAAGBQJRUH4BAAoJEENa44ZhAt0hP7gP/1SAVyeL8H/QNG6FDki7WUJC
 qoW4bnezuNb35/H9NSPUQ/XA0QY2XKdJamkSnDJgE5WVjWZS80hKUBcdUi3S2GBl
 Zbbs7H0Z2c/fiDvULrxRwqkZ/MlW4a6NnyKRHfSswKY+bAi+uybGoYGKmczXV4gC
 LlscYagb4WYVTNVlD5JG9sxo5ChueAx51IbzuOWq/94iyKtocFB87ZyK2FhbQaua
 n6af7lijAcTk02ad4JY2+ZZOOjGgOxP5+iigExzkXuS28dgNvNtN8FrrzLbiDHHy
 aZ7miLSdPawO790nvXzn1NGL/nZiUmRI46d7qv6K/X38IX7GUFtMNEDUFCCZknwg
 4VtNXzFExQy4YLCMpZ6di6rxMNVQ/EGj7QLN8jfD/pBEfiH/BMISdITL2KbgzcUv
 5TUQGeQFzzyY+2HwUCqb0RCskbhsIUwLDpEnhnyHI2sZKbdRrpI07ZpL3iAhTcqK
 5RDyXHNaVudVaKzaxq96vuw2OhH5fvACp3SdpaoCgZ54XuqoDoVW2q54vlj7anQI
 E0/f+EDyBf8Nu5YydQri76HE+BqG+PzCqU5Rq9866itLEG2DMsmAj9KJJUcDTiCn
 ANUIHoOpriGBAm1NP5tau/C0isvTw+lD/pBh26sdum1FwhoeqVf55PMvhxMG4Q/N
 aC3g+RMj3BPkdhewWpY+
 =SOee
 -----END PGP SIGNATURE-----

Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband/rdma fixes from Roland Dreier:
 "Small batch of InfiniBand/RDMA fixes for 3.9:

   - Fix for TX lockup in IPoIB
   - QLogic -> Intel update for qib driver
   - Small static checker fix for qib
   - Fix error path return value in cxgb4"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/qib: change QLogic to Intel
  IB/ipath: Silence a static checker warning
  IPoIB: Fix send lockup due to missed TX completion
  RDMA/cxgb4: Fix error return code in create_qp()
2013-03-25 09:44:40 -07:00
Linus Torvalds fb9bb1829d arm-soc: bug fixes for 3.9-rc4
Four patches for arm-soc this week:
 
 - Kevin Hilman is no longer reachable under his previous email address.
   He submitted the patch earlier, but nobody felt responsible to pick
   it up.
 
 - One Tegra fix for an incorect register address in device tree.
 
 - IMX multiplatform support exposes a configuration option that
   leads to unbootable kernels on all other machines and that needs
   to depend on that platform.
 
 - A nontrivial bug fix for the setup of the mxs video output.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIVAwUAUVBQf2CrR//JCVInAQJwyRAA0qzt+jbn+ezvLpeWvrgdEVLikiAieVyt
 HmSex/pEWh2ytIkrX2maHv5Oov9QmX7v4ZEU2WtdvMv5YERsT7/y1hjHaZTLcdmH
 11ogfVwTRbrNVWOb41ofdd3rUVgZfgzCGQ0rfEua3wLRK6AetZJxkqsuGXRaqjdm
 BBbmgKAmLsLeM3/aBzeuFint1+EDY74WBMxgqkwUretefKFMxzcBaqhoR+FNDIdV
 YaYbOocq45LsOa44gxlF6pmJkZsOsB2pqAjoANm5KtZlphTEpDD1C/wXvBaVAOBh
 8mCuk2mHEyZsyLrufh/ZywaPcDaUMDwpO1zidATwaRCf6qWOr3jtWiCtQo4FeNYS
 o+kkYtELyAEvwDQuljghviq0p+z2vpnk52sYdXkYW8Pgz5TqhK+Gu2ywaeiqeT2B
 cbLGG32lVgJnmWOOXI7Z6MjekgKx5arx7z6Br+1pTT/fE44DgE+CtabEsCdcpFWG
 ftC7FdxZabDUhfynSaO43tgKhdVv2XpVobG3iW2RYJOWm2dJSxulZg9+jypdxITm
 VX3kPar+mjvwyf3svsGIc65SVaayR6pfiLzV8qBtR3trFRbIlrI7vo21d2tFtuS8
 PfAR+9VHkeOdjVKDbu1sl7YycWz03xq4cM9XPFhvrobeFXb5OFwDwLWn4DZR5ZWY
 iJSMJkaBSww=
 =F6UW
 -----END PGP SIGNATURE-----

Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC bug fixes from Arnd Bergmann:
 "Four patches for arm-soc this week:

   - Kevin Hilman is no longer reachable under his previous email
     address.  He submitted the patch earlier, but nobody felt
     responsible to pick it up.

   - One Tegra fix for an incorect register address in device tree.

   - IMX multiplatform support exposes a configuration option that leads
     to unbootable kernels on all other machines and that needs to
     depend on that platform.

   - A nontrivial bug fix for the setup of the mxs video output."

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  MAINTAINERS: update email address for Kevin Hilman
  ARM: tegra: fix register address of slink controller
  ARM: imx: add dependency check for DEBUG_IMX_UART_PORT
  ARM: video: mxs: Fix mxsfb misconfiguring VDCTRL0
2013-03-25 09:26:10 -07:00
Linus Torvalds 844fdd9ac1 Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfixes from J Bruce Fields:
 "Fixes for a couple mistakes in the new DRC code.  And thanks to Kent
  Overstreet for noticing we've been sync'ing the wrong range on stable
  writes since 3.8."

* 'for-3.9' of git://linux-nfs.org/~bfields/linux:
  nfsd: fix bad offset use
  nfsd: fix startup order in nfsd_reply_cache_init
  nfsd: only unhash DRC entries that are in the hashtable
2013-03-25 09:25:12 -07:00
Trond Myklebust 1166fde6a9 SUNRPC: Add barriers to ensure read ordering in rpc_wake_up_task_queue_locked
We need to be careful when testing task->tk_waitqueue in
rpc_wake_up_task_queue_locked, because it can be changed while we
are holding the queue->lock.
By adding appropriate memory barriers, we can ensure that it is safe to
test task->tk_waitqueue for equality if the RPC_TASK_QUEUED bit is set.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
2013-03-25 11:23:40 -04:00
Viresh Kumar aa77a52764 cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init()
With the addition of following patch:

fcf8058 cpufreq: Simplify cpufreq_add_dev()

cpufreq driver's .init() routine must initialize policy->cpus with
mask of all possible CPUs (Online + Offline) that share the clock.
Then the core would copy this mask onto policy->related_cpus and will
reset policy->cpus to carry only online cpus.

acpi-cpufreq driver wasn't updated with this assumption and so
sometimes when we try to hot[un]plug CPUs at run time, sysfs
directories get corrupted.

This patch fixes acpi-cpufreq driver against this corruption.

Reported-and-tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Tested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-03-25 15:13:32 +01:00
viresh kumar 187da1d97f cpufreq: stats: do cpufreq_cpu_put() corresponding to cpufreq_cpu_get()
In cpufreq_stats_free_sysfs() we aren't balancing calls to
cpufreq_cpu_get() with cpufreq_cpu_put(). This will never let us have
ref count to policy->kobj as zero.

We will get a hang if somehow cpufreq_driver_unregister() is called.
And that can happen when we compile our driver as module and
insmod/rmmod it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-03-25 15:13:16 +01:00
Konrad Rzeszutek Wilk 05e99c8cf9 intel-pstate: Use #defines instead of hard-coded values.
They are defined in coreboot (MSR_PLATFORM) and the other
one is already defined in msr-index.h.

Let's use those.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-03-25 15:13:07 +01:00
Dirk Brandewie e6f3eb29be cpufreq / intel_pstate: Fix calculation of current frequency
Use the correct pstate value to calculate the effective frequency.

References: https://bugzilla.redhat.com/show_bug.cgi?id=923942
Reported-by: Satish Balay <balay@fastmail.fm>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-03-25 15:12:59 +01:00
Dirk Brandewie b563b4e3f2 cpufreq / intel_pstate: Add function to check that all MSRs are valid
Some VMs seem to try to implement some MSRs but not all the registers
the driver needs.  Check to make sure all the MSR that we need are
available. If any of the required MSRs are not available refuse to
load.

References: https://bugzilla.redhat.com/show_bug.cgi?id=922923
Reported-by: Josh Stone <jistone@redhat.com>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-03-25 15:12:52 +01:00
Linus Torvalds c4052ba9da Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Exynos and Intel fixes.

  The intel fixes are fairly straightforward, mostly reverts due to bugs
  found.  The exynos one is a big larger since they found some issues
  with the G2D engine and iommu interaction, and needed to verify the
  operations a lot better than they were previously, otherwise a user
  app can just crash the kernel with an iommu fault."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  Revert "drm/i915: write backlight harder"
  drm/i915: don't disable the power well yet
  Revert "drm/i915: set TRANSCODER_EDP even earlier"
  drm/exynos: Check g2d cmd list for g2d restrictions
  drm/exynos: Add a new function to get gem buffer size
  drm/exynos: Deal with g2d buffer info more efficiently
  drm/exynos: Clean up some G2D codes for readability
  drm/exynos: Fix G2D core malfunctioning issue
  drm/exynos: clear node object type at gem unmap
  drm/exynos: Fix error routine to getting dma addr.
  drm/exynos: Replaced kzalloc & memcpy with kmemdup
  drm/exynos: fimd: calculate the correct address offset
  drm/exynos: Make mixer_check_timing static
  drm/exynos: modify the compatible string for exynos fimd
2013-03-25 02:57:32 -07:00
Chen Gang 087aa036eb powerpc: make additional room in exception vector area
The FWNMI region is fixed at 0x7000 and the vector are now overflowing
that with allmodconfig. Fix that by moving slb_miss_realmode code out
of that region as it doesn't need to be that close to the call sites
(it is a _GLOBAL function)

Fixes this build error:

arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:1304: Error: attempt to move .org backwards

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2013-03-25 17:14:21 +11:00
Dave Airlie 7ac8833f59 Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into HEAD
Daniel writes:
"Just three revert/disable by default patches, one of them cc: stable
(since the offending commit was cc: stable, too)."

* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
  Revert "drm/i915: write backlight harder"
  drm/i915: don't disable the power well yet
  Revert "drm/i915: set TRANSCODER_EDP even earlier"
2013-03-25 12:20:00 +10:00
Dave Airlie ac165b006b Merge branch 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into HEAD
Inki writes:
Includes bug fixes and code cleanups.
And it considers some restrictions to G2D hardware.
With this, the malfunction and page fault issues to g2d driver
would be fixed.

* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: Check g2d cmd list for g2d restrictions
  drm/exynos: Add a new function to get gem buffer size
  drm/exynos: Deal with g2d buffer info more efficiently
  drm/exynos: Clean up some G2D codes for readability
  drm/exynos: Fix G2D core malfunctioning issue
  drm/exynos: clear node object type at gem unmap
  drm/exynos: Fix error routine to getting dma addr.
  drm/exynos: Replaced kzalloc & memcpy with kmemdup
  drm/exynos: fimd: calculate the correct address offset
  drm/exynos: Make mixer_check_timing static
  drm/exynos: modify the compatible string for exynos fimd
2013-03-25 12:19:10 +10:00
Yuchung Cheng 7ebe183c6d tcp: undo spurious timeout after SACK reneging
On SACK reneging the sender immediately retransmits and forces a
timeout but disables Eifel (undo). If the (buggy) receiver does not
drop any packet this can trigger a false slow-start retransmit storm
driven by the ACKs of the original packets. This can be detected with
undo and TCP timestamps.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-24 17:27:28 -04:00
Kumar Amit Mehta 8fe7f99a9e bnx2x: fix assignment of signed expression to unsigned variable
fix for incorrect assignment of signed expression to unsigned variable.

Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-24 17:27:28 -04:00
Hong zhi guo 9b46922e15 bridge: fix crash when set mac address of br interface
When I tried to set mac address of a bridge interface to a mac
address which already learned on this bridge, I got system hang.

The cause is straight forward: function br_fdb_change_mac_address
calls fdb_insert with NULL source nbp. Then an fdb lookup is
performed. If an fdb entry is found and it's local, it's OK. But
if it's not local, source is dereferenced for printk without NULL
check.

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-24 17:27:28 -04:00
Cong Wang 4a7df340ed 8021q: fix a potential use-after-free
vlan_vid_del() could possibly free ->vlan_info after a RCU grace
period, however, we may still refer to the freed memory area
by 'grp' pointer. Found by code inspection.

This patch moves vlan_vid_del() as behind as possible.

Cc: Patrick McHardy <kaber@trash.net>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-24 17:27:28 -04:00
Eric Dumazet 9979a55a83 net: remove a WARN_ON() in net_enable_timestamp()
The WARN_ON(in_interrupt()) in net_enable_timestamp() can get false
positive, in socket clone path, run from softirq context :

[ 3641.624425] WARNING: at net/core/dev.c:1532 net_enable_timestamp+0x7b/0x80()
[ 3641.668811] Call Trace:
[ 3641.671254]  <IRQ>  [<ffffffff80286817>] warn_slowpath_common+0x87/0xc0
[ 3641.677871]  [<ffffffff8028686a>] warn_slowpath_null+0x1a/0x20
[ 3641.683683]  [<ffffffff80742f8b>] net_enable_timestamp+0x7b/0x80
[ 3641.689668]  [<ffffffff80732ce5>] sk_clone_lock+0x425/0x450
[ 3641.695222]  [<ffffffff8078db36>] inet_csk_clone_lock+0x16/0x170
[ 3641.701213]  [<ffffffff807ae449>] tcp_create_openreq_child+0x29/0x820
[ 3641.707663]  [<ffffffff807d62e2>] ? ipt_do_table+0x222/0x670
[ 3641.713354]  [<ffffffff807aaf5b>] tcp_v4_syn_recv_sock+0xab/0x3d0
[ 3641.719425]  [<ffffffff807af63a>] tcp_check_req+0x3da/0x530
[ 3641.724979]  [<ffffffff8078b400>] ? inet_hashinfo_init+0x60/0x80
[ 3641.730964]  [<ffffffff807ade6f>] ? tcp_v4_rcv+0x79f/0xbe0
[ 3641.736430]  [<ffffffff807ab9bd>] tcp_v4_do_rcv+0x38d/0x4f0
[ 3641.741985]  [<ffffffff807ae14a>] tcp_v4_rcv+0xa7a/0xbe0

Its safe at this point because the parent socket owns a reference
on the netstamp_needed, so we cant have a 0 -> 1 transition, which
requires to lock a mutex.

Instead of refining the check, lets remove it, as all known callers
are safe. If it ever changes in the future, static_key_slow_inc()
will complain anyway.

Reported-by: Laurent Chavey <chavey@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-24 17:27:27 -04:00
Linus Torvalds 3912a677f6 Here are a few pinctrl fixes for the v3.9 rc series:
- Usecount bounds checking so we do not go below zero on
   mux usecounts.
 - Loop range checking in GPIO ranges in the DT range parser.
 - Proper print in debugfs for pinconf state.
 - Fix compilation bug in generic pinconf code.
 - Minor bugfixes to abx500 and mvebu drivers.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.10 (GNU/Linux)
 
 iQIcBAABAgAGBQJRS1t1AAoJEEEQszewGV1zV9EP/jb34Bk5gjeDFg5+tFYTRTyn
 RUq69aN20hTrmFkTYqF5oP6e+4QU6WMuLOkuQCcLIzxaA8IgCr75qKzetzF7kWjx
 ymR8t0wtI34r8mw4D+SNEg3Jz/99IIDmZP3lMd7A6Pccz0TsGQ4J78m5l2MPPnXt
 pQRtixyoLocJOwum5UTVaKj5s8zPwZR3LyRk9bXRk6hbVRvmYEv/N6xTIZE5SjwF
 QaBrBHUd4ZTvQIqYk1ECOoUpvZecE8FDIewybcZfIzHr0KCZdLAXYuW94k4GY/J3
 bI7OwHX576N4GrNWnYHklapN4SY+DFdMXHREaFbAi+Ei3gPyA3DJ1mtr33Fj5Mgk
 hucvU3a4ZvgEKIOPorW0ZINllwWkQGkmeZ7uqSRS17RYRyjc6tW51PMGhcx55cmB
 RCosGhwWeKU8zX9Hs8QiVprigtjpFNx8o8baEOqtKYgXa+jnsgPghJkGLbfhDYCV
 c9mmrKzU6fD9Si9X8Yf9WoN+z1hy/UpL4NhetaFt1kUAcDXEHGwMhSz8Wt+FTXYw
 XjpJ3FHzyFlxiQStzORy15E6O7PFEmfDuFca1P8Zj9MKcqvgFg0aLpaqJir7/U+e
 fjYwpMVQzv6f1ZmxbOtYbzBMVJst7g6RFJh6AjxfuI5p//j44VfOTinBNrDAQ5a9
 X/1cEY6m5Q+x9gKmtYvd
 =9iL3
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-fixes-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fixes from Linus Walleij:
 "Here are a few pinctrl fixes for the v3.9 rc series:
   - Usecount bounds checking so we do not go below zero on mux
     usecounts.
   - Loop range checking in GPIO ranges in the DT range parser.
   - Proper print in debugfs for pinconf state.
   - Fix compilation bug in generic pinconf code.
   - Minor bugfixes to abx500 and mvebu drivers."

* tag 'pinctrl-fixes-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinmux: forbid mux_usecount to be set at UINT_MAX
  pinctrl: mvebu: fix checking for SoC specific controls
  pinctrl: generic: Fix compilation error
  pinctrl: Print the correct information in debugfs pinconf-state file
  pinctrl: abx500: Fix checking if pin use AlternateFunction register
  gpio: fix wrong checking condition for gpio range
2013-03-24 10:11:29 -07:00
Linus Torvalds 33b73e9b3e Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "A collection of minor fixes, more EFI variables paranoia
  (anti-bricking) plus the ability to disable the pstore either as a
  runtime default or completely, due to bricking concerns."

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efivars: Fix check for CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE
  x86, microcode_intel_early: Mark apply_microcode_early() as cpuinit
  efivars: Handle duplicate names from get_next_variable()
  efivars: explicitly calculate length of VariableName
  efivars: Add module parameter to disable use as a pstore backend
  efivars: Allow disabling use as a pstore backend
  x86-32, microcode_intel_early: Fix crash with CONFIG_DEBUG_VIRTUAL
  x86-64: Fix the failure case in copy_user_handle_tail()
2013-03-24 10:10:34 -07:00
Daniel Vetter b1289371fc Revert "drm/i915: write backlight harder"
This reverts commit cf0a6584aa.

Turns out that cargo-culting breaks systems. Note that we can't revert
further, since

commit 770c12312a
Author: Takashi Iwai <tiwai@suse.de>
Date:   Sat Aug 11 08:56:42 2012 +0200

    drm/i915: Fix blank panel at reopening lid

fixed a regression in 3.6-rc kernels for which we've never figured out
the exact root cause. But some further inspection of the backlight
code reveals that it's seriously lacking locking. And especially the
asle backlight update is know to get fired (through some smm magic)
when writing specific backlight control registers. So the possibility
of suffering from races is rather real.

Until those races are fixed I don't think it makes sense to try
further hacks. Which sucks a bit, but sometimes that's how it is :(

References: http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg18788.html
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47941
Tested-by: Takashi Iwai <tiwai@suse.de>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: stable@vger.kernel.org (the reverted commit was cc: stable, too)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-24 13:23:20 +01:00
Paulo Zanoni 2124b72e62 drm/i915: don't disable the power well yet
We're still not 100% ready to disable the power well, so don't disable
it for now. When we disable it we break the audio driver (because some
of the audio registers are on the power well) and machines with eDP on
port D (because it doesn't use TRANSCODER_EDP).

Also, instead of just reverting the code, add a Kernel option to let
us disable it if we want. This will allow us to keep developing and
testing the feature while it's not enabled.

This fixes problems caused by the following commit:
  commit d6dd9eb1d9
  Author: Daniel Vetter <daniel.vetter@ffwll.ch>
  Date:   Tue Jan 29 16:35:20 2013 -0200
       drm/i915: dynamic Haswell display power well support

References: http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg18788.html
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-24 13:22:33 +01:00
Daniel Vetter bba2181c49 Revert "drm/i915: set TRANSCODER_EDP even earlier"
This reverts commit cc464b2a17.

The reason is that Takashi Iwai reported a regression bisected to this
commit:

http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg18788.html

His machine has eDP on port D (usual desktop all-in-on setup), which
intel_dp.c identifies as an eDP panel, but the hsw ddi code
mishandles.

Closer inspection of the code reveals that haswell_crtc_mode_set also
checks intel_encoder_is_pch_edp when setting is_cpu_edp. On haswell
that doesn't make much sense (since there's no edp on the pch), but
what this function _really_ checks is whether that edp connector is on
port A or port D. It's just that on ilk-ivb port D was on the pch ...

So that explains why this seemingly innocent change killed eDP on port
D. Furthermore it looks like everything else accidentally works, since
we've never enabled eDP on port D support for hsw intentionally (e.g.
we still register the HDMI output for port D in that case).

But in retrospective I also don't like that this leaks highly platform
specific details into common code, and the reason is that the drm
vblank layer sucks. So instead I think we should:
- move the cpu_transcoder into the dynamic pipe_config tracking (once
  that's merged).
- fix up the drm vblank layer to finally deal with kms crtc objects
  instead of int pipes.

v2: Pimp commit message with the better diagnosis as discussed with
Paulo on irc.

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-24 13:22:32 +01:00
H. Peter Anvin b9726d9df8 Merge tag 'efi-for-3.9-rc4' into x86/urgent
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-03-23 21:49:51 -07:00
Linus Torvalds 8bb9660418 Linux 3.9-rc4 2013-03-23 16:52:44 -07:00
Linus Torvalds a607a1143a Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "These are mostly minor fixes this time around.  The iscsi-target CHAP
  big-endian bugfix and bump FD_MAX_SECTORS=2048 default patch to allow
  1MB sized I/Os for FILEIO backends on >= v3.5 code are both CC'ed to
  stable.

  Also, there is a persistent reservations regression that has recently
  been reported for >= v3.8.x code, that is currently being tracked down
  for v3.9."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target/pscsi: Reject cross page boundary case in pscsi_map_sg
  target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os
  tcm_vhost: Flush vhost_work in vhost_scsi_flush()
  tcm_vhost: Add missed lock in vhost_scsi_clear_endpoint()
  target: fix possible memory leak in core_tpg_register()
  target/iscsi: Fix mutual CHAP auth on big-endian arches
  target_core_sbc: use noop for SYNCHRONIZE_CACHE
2013-03-23 16:51:55 -07:00
Linus Torvalds 22c3f2fff6 A few bugfixes for md
- recent regressions in raid5
  - recent regressions in dmraid
  - a few instances of CONFIG_MULTICORE_RAID456 linger
 
 Several tagged for -stable
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQIVAwUAUUzCwDnsnt1WYoG5AQJKMhAAsi2XhqLC4Dx19J8MTF6+cjfynWCxF2SC
 3mMcVZm6yxSowixb1Ht72CyssWdJAi4vgaw0aLNH7b3CbPDZfTSfqLP4tSvyPfod
 aDcFDdd/RhHjDpJqZ52Tyc6QzBfyhwu+s9R+a78TSL47ZMjZpz1QpshG8Sm9JYTs
 z72VlIZeglzhWmzO1FInsL/oT/Hwr9IfpmJpuXBQQObDn3BgvZLuzZyCi35upqrM
 711ei7CKaN0s/jKcWclNRtgUrr10XsgQ6PugOZbli09CC8ushHwvXe/VmxoQFg2+
 Sj14YSfYAY+1QpOiuYc+knrWc7CtPGHgUqBzOoYWMxi9Lqpo5xhD1vkRsFhXxMSg
 GVnAnh/RXl7bGzGWaRv8twG4vU+qYOlEPNgO6/079AxCOrrNrstYrgjBxBSWuxrB
 0UIFQGT69zA5G3cLbIRrXUxO8oIVeEx92YV1TOcgLKP5OXlp/0I8ajnA9b8KoPZa
 He04GdPlZMXTLAqq9MaQRdS0XzX8YQDWbUebqe+w5NW46sLbckkmxaNZs7fOYAfG
 CNHfeRsLp5v0oNbhNyCDSjxqH6uYwKCdCqmDxo6A+fmjmDruHQmZoAK8YISUtPtx
 u4M82jW6Z/xOg4pomxMl4SxzCDhy1pM8PYzyx7Mj82C4XBR8CkrQTP8XD+FQL2Ih
 KhId4tJzx6Q=
 =Rycs
 -----END PGP SIGNATURE-----

Merge tag 'md-3.9-fixes' of git://neil.brown.name/md

Pull md fixes from NeilBrown:
 "A few bugfixes for md

   - recent regressions in raid5
   - recent regressions in dmraid
   - a few instances of CONFIG_MULTICORE_RAID456 linger

  Several tagged for -stable"

* tag 'md-3.9-fixes' of git://neil.brown.name/md:
  md: remove CONFIG_MULTICORE_RAID456 entirely
  md/raid5: ensure sync and DISCARD don't happen at the same time.
  MD: Prevent sysfs operations on uninitialized kobjects
  MD RAID5: Avoid accessing gendisk or queue structs when not available
  md/raid5: schedule_construction should abort if nothing to do.
2013-03-23 15:49:49 -07:00
Linus Torvalds c8c1f16717 Simple stuff. See one-line summaries.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQIVAwUAUU0ozSWzCDIBeCsvAQKsQg/9GMxDhhkVny81gRf03CfXR2Xf1cRTm29P
 +VP9lll2T5WRW4+idqCoUWdDNjMGXPkHJ03xA3coPja+eidHs90l8Lw0hWHsgbXn
 oxbbG7VwXNyTts35ivjHnsesHtdGZDkSibBb06zN/AsZao2IxMNeMpFaj9NbRJVH
 kDbrsvTe3xdhQ7YBuRuNMQyq5VQ7DsTrRbvX74TFh1BuXAlmVfbpNLT8VPB7dS18
 RlPZVY7fTwDj9Kfp7izil/8k4Gk8oNOgGgEAQ9vFM6o3mmKQx2IFdRKBqcyOm27O
 2zEMJ+qW8BfWgWoB705u/QTLaNboFFPSFy9uNyBDdAyGlyhCd3gU+YGpS+7o+hPs
 5IJjU/Vq2zFRsE5b6yR+DASkZKvG3DIShNk3a27WaMXlnm+sa4R9Xo1f69DT/E1r
 9TymozQA6v6pulBA1Gw97Z+FpO9ElRNfVLRUHDzvOgz+uNtd1kMKi54P4U+LqRIf
 K9Wi7Rp7H5YZ5YEkY7JpvrNNSzFA0aUAyDGcaLiWICbRiAxqDRkkZfymCR97IJz/
 KfyXMiCqCDwhHvVysO+7LzA/8hqinkBUbxLHmvqFw5ih1EftG4bpzVA+b++z9aRr
 /NqJ5jNIuWyKy4iak71/Rwi9eGq5JtiyvwcCm1jSzSzhA8UmB+YUgAiGm53v1PZa
 xN5JzUYDxoU=
 =ovtO
 -----END PGP SIGNATURE-----

Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

Pull libata updates from Jeff Garzik:
 "Simple stuff.  See one-line summaries."

* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  pata_samsung_cf: use module_platform_driver_probe()
  [libata] Avoid specialized TLA's in ZPODD's Kconfig
  libata-acpi.c: fix copy and paste mistake in ata_acpi_register_power_resource
  sata_fsl: Remove redundant NULL check before kfree
  ahci: Add Device IDs for Intel Wellsburg PCH
  ata_piix: Add MODULE_PARM_DESC to prefer_ms_hyperv
2013-03-23 12:33:36 -07:00
Linus Torvalds df2a8f39cd Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "One bugfix for the tegra driver.  Two updates regarding email
  addresses and MAINTAINERS which I like to have up-to-date so people
  can be reached immediately.  While we are here, there is on PCI_ID
  addition."

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  MAINTAINERS: add maintainer entry for atmel i2c driver
  i2c: Fix my e-mail address in drivers and documentation
  i2c: iSMT: add Intel Avoton DeviceIDs
  i2c: tegra: check the clk_prepare_enable() return value
2013-03-23 12:32:14 -07:00
Linus Torvalds a4e71e7937 Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
 "Fix a boot issues and correct the AcpiMmioSel bitmask in the
  sp5100_tco watchdog device driver"

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
  watchdog: sp5100_tco: Remove code that may cause a boot failure
2013-03-23 12:30:39 -07:00
Torsten Duwe c19b3b0f6e KMS: fix EDID detailed timing frame rate
When KMS has parsed an EDID "detailed timing", it leaves the frame rate
zeroed.  Consecutive (debug-) output of that mode thus yields 0 for
vsync.  This simple fix also speeds up future invocations of
drm_mode_vrefresh().

While it is debatable whether this qualifies as a -stable fix I'd apply
it for consistency's sake; drm_helper_probe_single_connector_modes()
does the same thing already for all probed modes.

Cc: stable@vger.kernel.org
Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-23 10:46:10 -07:00
Torsten Duwe 16dad1d743 KMS: fix EDID detailed timing vsync parsing
EDID spreads some values across multiple bytes; bit-fiddling is needed
to retrieve these.  The current code to parse "detailed timings" has a
cut&paste error that results in a vsync offset of at most 15 lines
instead of 63.

See

   http://en.wikipedia.org/wiki/EDID

and in the "EDID Detailed Timing Descriptor" see bytes 10+11 show why
that needs to be a left shift.

Cc: stable@vger.kernel.org
Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-23 10:46:10 -07:00
Paulo Zanoni 4f3308b975 drm/i915: there's no PIPESTAT on HAS_PCH_SPLIT platforms
So don't read it when capturing the error state. This solves
"unclaimed register" messages on Haswell when we have a GPU hang.

V2: Check for HAS_PCH_SPLIT instead of Gen5+ because VLV still has
this register.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 13:33:50 +01:00
Paulo Zanoni 80ca378b76 drm/i915: there's no DSPPOS register on gen4+
So don't read it when capturing the error state. This solves some
"unclaimed register" messages on Haswell when we hang the GPU.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 13:33:23 +01:00
Paulo Zanoni 4b71a570f2 drm/i915: fix DSPADDR Gen check
The first version of commit "drm/i915: there's no DSPADDR register on
Haswell" added 2 "!IS_HASWELL" checks. When reviewing the patch, Ben
suggested to make these checks more future-proof, so when Daniel
applied the patch he fixed the first check but not the second. This
commit makes the second check also "future-proof".

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 13:32:56 +01:00
Damien Lespiau ad1c0b1974 drm/i915: Use BUG() in a case of a programming error
The port number should always be correctly set. Do the same thing as the
switch above and use BUG() to signal that branch is not supposed to be
taken.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 13:31:20 +01:00
Damien Lespiau 8228c251ba drm/i915: Rename intel_ddi_enable_pipe_func() to transcoder_func()
We are really talking about the transcoder function here and the disable
version uses trancoder in its name already, so let's try to be
consistent.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 13:30:54 +01:00
Damien Lespiau aaa148ecdc drm/i915: Cleanup if the EDP transcoder has a bobug input value
In the case where the hardware has been wrongly programmed and the EDP
TRANS_DDI_FUNC_CTL register has a bogus value in its EDP Input field, we
were using the pipe variable uninitialized.

In this case, shutdown the transcoder. It will be programmed correctly
the next time we try to enabled eDP.

Note from Paulo's review: Wrong modeset sequence can easily lead to
frozen machines hence the disable_ddi call might be risky. But since
things are awry already, doesn't matter too much.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Add note about Paulo's caution about potential hangs.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 13:27:44 +01:00
Damien Lespiau 00037c2e95 drm/i915: Error out if we are trying to use VGA with SPLL already in use
Our static analysis tool noticed that 'reg' could be used uninitialized if
we are trying to get a PLL to drive VGA and SPLL is already in use
(plls->spll_refcoung != 0).

In the (error) case above, let's return false to the caller and emit an
error.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 13:26:56 +01:00
Ben Widawsky e3dff58550 drm/i915: Implement WaSwitchSolVfFArbitrationPriority
Bspec mentions this for HSW+. I can't quite tell what the effects are,
and I don't easily have a way to test this.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:06 +01:00
Ville Syrjälä 96b219fac3 drm/i915: Set the VIC in AVI infoframe for SDVO
We do this for HDMI already, so I don't know why we wouldn't do
it for SDVO as well.

This is completely untested due to lack of hardware.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:05 +01:00
Ville Syrjälä 65533633f7 drm/i915: Kill a strange comment about DPMS functions
This comment looks like some historical leftover. Get rid of it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:05 +01:00
Ben Widawsky a2b3fc0133 drm/i915: Correct sandybrige overclocking
Change the gen6+ max delay if the pcode read was successful (not the
inverse).

The previous code was all sorts of wrong and has existed since I broke
it:
commit 42c0526c93
Author: Ben Widawsky <ben@bwidawsk.net>
Date:   Wed Sep 26 10:34:00 2012 -0700

    drm/i915: Extract PCU communication

I added some parentheses for clarity, and I also corrected the debug
message message to use the mask (wrong before I came along) and added a
print to show the value we're changing from.

Looking over the code, I'm not actually sure what we're trying to do. I
introduced the bug simply by extracting the function not implementing
anything new. We already set max_delay based on the capabilities
register (which is what we use elsewhere to determine min and max).
This would potentially increase it, I suppose? Jesse, I can't find the
document which explains the definitions of the pcode commands, maybe you
have it around.

Based on Jesse's response, this could potentially be for -fixes, or
stable, or maybe lead to us dropping it entirely. As the current code is
is, things won't completely break because of the aforementioned
capabilities register, and in my experimentation, enabling this has no
effect, it goes from 1100->1100.

I found this while reviewing Jesse's VLV patches.

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Bikeshed-away the redudant parens spotted by Chris Wilson.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:04 +01:00
Ben Widawsky 219f4fdbed drm/i915: Introduce GEN7_FEATURES for device info
Recommended by Chris.

v2: Make it GEN7_FEATURES, and use it for vlv and hsw also (Ben)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:04 +01:00
Ben Widawsky 7eb552aeae drm/i915: Move num_pipes to intel info
Requested by Daniel.

v2: Fix incorrect num_pipe settings. (Chris)

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:03 +01:00
Daniel Vetter a15326a57c drm/i915: fixup pd vs pt confusion in gen6 ppgtt code
The index variable points at a page table, not a page directory or a
pde. Ben Widawsky fix this up correctly in his ppgtt cleanup, but I've
botched the job and copy&pasted the old confusion from the original
gen6 ppgtt code in

commit def886c376
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jan 24 14:44:56 2013 -0800

    drm/i915: vfuncs for ppgtt

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:03 +01:00
Daniel Vetter 6ddc4fc70a style nit: Align function parameter continuation properly. 2013-03-23 12:18:02 +01:00
Jesse Barnes 34c61c6e0b drm/i915: VLV doesn't have HDMI on port C
Port C is for eDP.  Port B is shared between HDMI and DP.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:02 +01:00
Jesse Barnes 12569ad6ea drm/i915: DSPFW and BLC regs are in the display offset range
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:01 +01:00
Jesse Barnes 4e8c84a5b1 drm/i915: set conservative clock gating values on VLV v2
We'll re-enable select bits as needed after testing and power measurement.

v2: split out wake handling bits (Jani)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-03-23 12:18:01 +01:00