I'm not clear if the hardware is still subject to the same prefetching
issues that made us use a scratch page in the first place. In either
case, we're using garbage with the current code (we will end up using
offset 0).

This may be the cause of our current gem_cpu_reloc regression with
PPGTT. I cannot test it at the moment.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Introduced in
commit e0e33f8ff6f0b6d286afc314802be4993341bd47
Author: Imre Deak <imre.deak@intel.com>
Date:   Tue Mar 4 19:23:07 2014 +0200

The impact was luckily minimal, due to the extra check we do against a
software pipestat IRQ mask.

Caught by Fengguang's 0-day tester.

Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

BSpec is a bit unclear whether HDMI+HDMI cloning should work on g4x.
Tests on real hardware say that it does. Since g4x can't send
infoframes to more than one HDMI port anyway, we don't lose anything
by allow it.

For PCH platforms BSpec explicitly forbids HDMI+HDMI cloning.

Whether HDMI+HDMI cloning might also work on VLV is a bit unclear, but
since we'd at least lose the capability of sending infoframes to more
than one cloned HDMI port, it doesn't seem like a good idea to allow it.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73850Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

HDMI+VGA cloning should be supported on all platforms. The only real
obstacle is the 1.5x clock adjustment for 12bpc HDMI, but that is now
taken care of, so we can allow HDMI+VGA cloning.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73850Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

When cloning HDMI with other output types, we can't use 12bpc since the
clocks for the other encoder types would be off. So have
intel_hdmi_compute_config() check if there are other encoders besides
HDMI being fed from the same pipe, and if so, pick 8bpc insted if 12bpc.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Linux 3.14-rc6

I need the hdmi/dvi-dual link fixes in 3.14 to avoid ugly conflicts
when merging Ville's new hdmi cloning support into my -next tree

Conflicts:
	drivers/gpu/drm/i915/Makefile
	drivers/gpu/drm/i915/intel_dp.c

Makefile cleanup conflicts with an acpi build fix, intel_dp.c is
trivial.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Currently we allow encoders to indicate whether they can be part of a
cloned set with just one flag. That's not flexible enough to describe
the actual hardware capabilities. Instead make it a bitmask of encoder
types with which the current encoder can be cloned.

For now we set the bitmask to allow DVO+DVO and DVO+VGA, which should
match what the old boolean flag allowed. We will add some more cloning
options in the future.

Note that this patch also removes the encoder.possible_clones setting
from encoder setup code - we compute this dynamically.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
[danvet: Add Ville's explanation why removing the encoder
possible_clones is save.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

When adding new gunk, _always_ think of a good place. Start/end
usually just means that this didn't happen, and on top of that results
in needless conflicts with other patches doing the same.

Introduced in

commit 62d5d69b
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date:   Tue Feb 25 17:11:28 2014 +0200

    drm/i915: Add suspend count to error state

Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

The stolen allocator objects loudly if the caller requests a zero-sized
object. This is a useful verbose check as in most cases the request
should have been pruned much early. Here we just want to silently return
before attempting the allocation.

Regression from
commit 484b41dd
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Fri Mar 7 08:57:55 2014 -0800

    drm/i915: remove early fb allocation dependency on CONFIG_FB v2

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75963Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

During KMS takeover, we try to capture the current configuration and
preserve it across our initialisation. For a variety of reasons, we may
fail this, for example if the current mode was using the legacy VGA
plane. Under such circumstances, we discard the fb in the plane config
and tried to find a matching fb on another CRTC. This obviously also
failed, leaving the plane config fb dangling, pointing to the freed block.

Regression from
commit 484b41dd
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Fri Mar 7 08:57:55 2014 -0800

    drm/i915: remove early fb allocation dependency on CONFIG_FB v2

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75963Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Pull ARM SoC fixes from from Olof Johansson:
 "A collection of fixes for ARM platforms.  A little large due to us
  missing to do one last week, but there's nothing in particular here
  that is in itself large and scary.

  Mostly a handful of smaller fixes all over the place.  The majority is
  made up of fixes for OMAP, but there are a few for others as well.  In
  particular, there was a decision to rename a binding for the Broadcom
  pinctrl block that we need to go in before the final release since we
  then treat it as ABI"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
  ARM: tegra: add LED options back into tegra_defconfig
  ARM: dts: omap3-igep: fix boot fail due wrong compatible match
  ARM: OMAP3: Fix pinctrl interrupts for core2
  pinctrl: Rename Broadcom Capri pinctrl binding
  pinctrl: refer to updated dt binding string.
  Update dtsi with new pinctrl compatible string
  ARM: OMAP: Kill warning in CPUIDLE code with !CONFIG_SMP
  ARM: OMAP2+: Add support for thumb mode on DT booted N900
  ARM: OMAP2+: clock: fix clkoutx2 with CLK_SET_RATE_PARENT
  ARM: OMAP4: hwmod: Fix SOFTRESET logic for OMAP4
  ARM: DRA7: hwmod data: correct the sysc data for spinlock
  ARM: OMAP5: PRM: Fix reboot handling
  ARM: sunxi: dt: Change the touchscreen compatibles
  ARM: sun7i: dt: Fix interrupt trigger types

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

   - Fix another nfs4_sequence corruptor in RELEASE_LOCKOWNER
   - Fix an Oopsable delegation callback race
   - Fix another bad stateid infinite loop
   - Fail the data server I/O is the stateid represents a lost lock
   - Fix an Oopsable sunrpc trace event"

* tag 'nfs-for-3.14-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: Fix oops when trace sunrpc_task events in nfs client
  NFSv4: Fail the truncate() if the lock/open stateid is invalid
  NFSv4.1 Fail data server I/O if stateid represents a lost lock
  NFSv4: Fix the return value of nfs4_select_rw_stateid
  NFSv4: nfs4_stateid_is_current should return 'true' for an invalid stateid
  NFS: Fix a delegation callback race
  NFSv4: Fix another nfs4_sequence corruptor

Pull USB fixes from Greg KH:
 "Here are 4 USB fixes for your current tree.

  Two of them are reverts to hopefully resolve the nasty XHCI
  regressions we have been having on some types of devices.  The other
  two are quirks for some Logitech video devices"

* tag 'usb-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  Revert "USBNET: ax88179_178a: enable tso if usb host supports sg dma"
  Revert "xhci 1.0: Limit arbitrarily-aligned scatter gather."
  usb: Make DELAY_INIT quirk wait 100ms between Get Configuration requests
  usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e

Pull staging driver tree fix from Greg KH:
 "Here is a single staging driver fix for your tree.

  It resolves an issue with arbritary writes to memory if a specific
  driver is loaded"

* tag 'staging-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging/cxt1e1/linux.c: Correct arbitrary memory write in c4_ioctl()

This fixes CVE-2014-0102.

The following command sequence produces an oops:

	keyctl new_session
	i=`keyctl newring _ses @s`
	keyctl link @s $i

The problem is that search_nested_keyrings() sees two keyrings that have
matching type and description, so keyring_compare_object() returns true.
s_n_k() then passes the key to the iterator function -
keyring_detect_cycle_iterator() - which *should* check to see whether this is
the keyring of interest, not just one with the same name.

Because assoc_array_find() will return one and only one match, I assumed that
the iterator function would only see an exact match or never be called - but
the iterator isn't only called from assoc_array_find()...

The oops looks something like this:

	kernel BUG at /data/fs/linux-2.6-fscache/security/keys/keyring.c:1003!
	invalid opcode: 0000 [#1] SMP
	...
	RIP: keyring_detect_cycle_iterator+0xe/0x1f
	...
	Call Trace:
	  search_nested_keyrings+0x76/0x2aa
	  __key_link_check_live_key+0x50/0x5f
	  key_link+0x4e/0x85
	  keyctl_keyring_link+0x60/0x81
	  SyS_keyctl+0x65/0xe4
	  tracesys+0xdd/0xe2

The fix is to make keyring_detect_cycle_iterator() check that the key it
has is the key it was actually looking for rather than calling BUG_ON().

A testcase has been included in the keyutils testsuite for this:

	http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?id=891f3365d07f1996778ade0e3428f01878a1790bReported-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull thermal fixes from Zhang Rui:
 "Specifics:

   - Update the help text of INT3403 Thermal driver, which was not
     friendly to users.  From Zhang Rui.

   - The "type" sysfs attribute of x86_pkg_temp_thermal registered
     thermal zones includes an instance number, which makes the
     thermal-to-hwmon bridge fails to group them all in a single hwmon
     device.  Fixed by Jean Delvare.

   - The hwmon device registered by x86_pkg_temp_thermal driver is
     redundant because the temperature value reported by
     x86_pkg_temp_thermal is already reported by the coretemp driver.
     Fixed by Jean Delvare.

   - Fix a problem that the cooling device can not be updated properly
     if it is initialized at max cooling state.  From Ni Wade.

   - Fix a problem that OF registered thermal zones are running without
     thermal governors.  From Zhang Rui.

   - Commit beeb5a1e ("thermal: rcar-thermal: Enable driver
     compilation with COMPILE_TEST") broke build on archs wihout io
     memory.  Thus make it depend on HAS_IOMEM to bypass build failures.
     Fixed by Richard Weinberger"

* 'for-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  Thermal: thermal zone governor fix
  Thermal: Allow first update of cooling device state
  thermal,rcar_thermal: Add dependency on HAS_IOMEM
  x86_pkg_temp_thermal: Fix the thermal zone type
  x86_pkg_temp_thermal: Do not expose as a hwmon device
  Thermal: update INT3404 thermal driver help text

Pull spi fixes from Mark Brown:
 "A scattering of driver specific fixes here.

  The fixes from Axel cover bitrot in apparently unmaintained drivers,
  the at79 bug is fixing a glitch on /CS during initialisation of some
  devices which could break some slaves and the remainder are fixes for
  recently introduced bugs from the past release cycle or so"

* tag 'spi-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: atmel: add missing spi_master_{resume,suspend} calls to PM callbacks
  spi: coldfire-qspi: Fix getting correct address for *mcfqspi
  spi: fsl-dspi: Fix getting correct address for master
  spi: spi-ath79: fix initial GPIO CS line setup
  spi: spi-imx: spi_imx_remove: do not disable disabled clocks
  spi-topcliff-pch: Fix probing when DMA mode is used
  spi/topcliff-pch: Fix DMA channel

Pull SCSI target fixes from Nicholas Bellinger:
 "This series addresses a number of outstanding issues wrt to active I/O
  shutdown using iser-target.  This includes:

   - Fix a long standing tpg_state bug where a tpg could be referenced
     during explicit shutdown (v3.1+ stable)
   - Use list_del_init for iscsi_cmd->i_conn_node so list_empty checks
     work as expected (v3.10+ stable)
   - Fix a isert_conn->state related hung task bug + ensure outstanding
     I/O completes during session shutdown.  (v3.10+ stable)
   - Fix isert_conn->post_send_buf_count accounting for RDMA READ/WRITEs
     (v3.10+ stable)
   - Ignore FRWR completions during active I/O shutdown (v3.12+ stable)
   - Fix command leakage for interrupt coalescing during active I/O
     shutdown (v3.13+ stable)

  Also included is another DIF emulation fix from Sagi specific to
  v3.14-rc code"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  Target/sbc: Fix sbc_copy_prot for offset scatters
  iser-target: Fix command leak for tx_desc->comp_llnode_batch
  iser-target: Ignore completions for FRWRs in isert_cq_tx_work
  iser-target: Fix post_send_buf_count for RDMA READ/WRITE
  iscsi/iser-target: Fix isert_conn->state hung shutdown issues
  iscsi/iser-target: Use list_del_init for ->i_conn_node
  iscsi-target: Fix iscsit_get_tpg_from_np tpg_state bug

Revert commit 3130497f ("ACPI / sleep: pm_power_off needs more
sanity checks to be installed") that breaks power ACPI power off on a
lot of systems, because it checks wrong registers.

Fixes: 3130497f ("ACPI / sleep: pm_power_off needs more sanity checks to be installed")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'omap-for-v3.14/fixes-dt-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren:

Two omap3430 vs 3630 device tree regression fixes for
issues booting 3430 based boards.

* tag 'omap-for-v3.14/fixes-dt-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
  ARM: dts: omap3-igep: fix boot fail due wrong compatible match
Signed-off-by: Olof Johansson <olof@lixom.net>

Merge 'bcm pinctrl rename' From Christin Daudt:

Rename pinctrl dt binding to restore consistency with other bcm mobile
bindings.

* tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351:
  pinctrl: Rename Broadcom Capri pinctrl binding
  pinctrl: refer to updated dt binding string.
  Update dtsi with new pinctrl compatible string
  + Linux 3.14-rc4
Signed-off-by: Olof Johansson <olof@lixom.net>

Allwinner fixes from Maxime Ripard:

Two fixes for device trees additions that got added in 3.14. One fixes the
interrupt types of some IPs, the other fixes up a compatible that got
introduced during 3.14

* tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux:
  ARM: sunxi: dt: Change the touchscreen compatibles
  ARM: sun7i: dt: Fix interrupt trigger types
Signed-off-by: Olof Johansson <olof@lixom.net>

Pull cgroup fixes from Tejun Heo:
 "Two cpuset locking fixes from Li.  Both tagged for -stable"

* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset: fix a race condition in __cpuset_node_allowed_softwall()
  cpuset: fix a locking issue in cpuset_migrate_mm()

Pull libata fixes from Tejun Heo:
 "Just a couple patches blacklisting more broken devices"

* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk for Seagate Momentus SpinPoint M8 (2BA30001)
  libata: disable queued TRIM for Crucial M500 mSATA SSDs

Pull workqueue fix from Tejun Heo:
 "This pull request contains a workqueue usage fix for firewire.

  For quite a long time now, workqueue only treats two work items
  identical iff both their addresses and callbacks match.  This is to
  avoid introducing false dependency through the work item being
  recycled while being executed.  This changes non-reentrancy guarantee
  for the users of PREPARE[_DELAYED]_WORK() - if the function changes,
  reentrancy isn't guaranteed against the previous instance.  Firewire
  depended on such nonreentrancy guarantee.

  This is fixed by doing the work item multiplexing from firewire proper
  while keeping the work function unchanged"

* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  firewire: don't use PREPARE_DELAYED_WORK

Pull firewire fixes from Stefan Richter:
 "Fix a use-after-free regression since v3.4 and an initialization
  regression since v3.10"

* tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: ohci: fix probe failure with Agere/LSI controllers
  firewire: net: fix use after free

Pull clk driver fix from Mike Turquette:
 "Single fix for a clock driver merged in 3.14-rc1.  Without this fix
  the CPU frequency cannot be scaled"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
  clk: shmobile: rcar-gen2: Use kick bit to allow Z clock frequency change

Pull ACPI and power management fixes from Rafael Wysocki:

 - ACPI tables in some BIOSes list device resources with size equal to
   0, which doesn't make sense, so we should ignore them, but instead we
   try to use them and mangle things completely.  Fix from Zhang Rui.

 - Several models of Samsung laptops accumulate EC events when they are
   in sleep states which leads to EC buffer overflows that prevent new
   events from being signaled after system resume or reboot.  This has
   been affecting many users for quite a while and may be addressed by
   clearing the EC buffer during system resume and system startup on
   those machines.  From Kieran Clancy.

 - If the ACPI sleep control and status registers are not present (which
   happens if the Hardware Reduced ACPI mode bit is set in the ACPI
   tables, but also may result from BIOS bugs), we should not try to use
   ACPI to power off the system and ACPI S5 should not be listed as
   supported.  Fix from Aubrey Li.

 - There's a race condition in cpufreq_get() that leads to a kernel
   crash if that function is called at a wrong time.  Fix from Aaron
   Plattner.

 - cpufreq policy objects have to be initialized entirely before they
   are first accessed by their users which isn't the case currently and
   that potentially leads to various kinds of breakage that is difficult
   to debug.  Fix from Viresh Kumar.

 - Locking is missing in __cpufreq_add_dev() which leads to a race
   condition that may trigger a kernel crash.  Fix from Viresh Kumar.

* tag 'pm+acpi-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / EC: Clear stale EC events on Samsung systems
  cpufreq: Initialize governor for a new policy under policy->rwsem
  cpufreq: Initialize policy before making it available for others to use
  cpufreq: use cpufreq_cpu_get() to avoid cpufreq_get() race conditions
  ACPI / sleep: pm_power_off needs more sanity checks to be installed
  ACPI / resources: ignore invalid ACPI device resources

By stuffing the fb allocation into the crtc, we get mode set lifetime
refcounting for free, but have to handle the initial pin & fence
slightly differently.  It also means we can move the shared fb handling
into the core rather than leaving it out in the fbdev code.

v2: null out crtc->fb on error (Daniel)
    take fbdev fb ref and remove unused error path (Daniel)
Requested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Retrieve current framebuffer config info from the regs and create an fb
object for the buffer the BIOS or boot loader left us.  This should
allow for smooth transitions to userspace apps once we finish the
initial configuration construction.

v2: check for non-native modes and adjust (Jesse)
    fixup aperture and cmap frees (Imre)
    use unlocked unref if init_bios fails (Jesse)
    fix curly brace around DSPADDR check (Imre)
    comment failure path for pin_and_fence (Imre)
v3: fixup fixup of aperture frees (Chris)
v4: update to current bits (locking & pin_and_fence hack) (Jesse)
v5: move fb config fetch to display code (Jesse)
    re-order hw state readout on initial load to suit fb inherit (Jesse)
    re-add pin_and_fence in fbdev code to make sure we refcount properly (Je
v6: rename to plane_config (Daniel)
    check for valid object when initializing BIOS fb (Jesse)
    split from plane_config readout and other display changes (Jesse)
    drop use_bios_fb option (Chris)
    update comments (Jesse)
    rework fbdev_init_bios for clarity (Jesse)
    drop fb obj ref under lock (Chris)
v7: use fb object from plane_config instead (Ville)
    take ref on fb object (Jesse)
v8: put under i915_fastboot option (Jesse)
    fix fb ptr checking (Jesse)
    inform drm_fb_helper if we fail to enable a connector (Jesse)
    drop unnecessary enabled[] modifications in failure cases (Chris)
    split from BIOS connector config readout (Daniel)
    don't memset the fb buffer if preallocated (Chris)
    alloc ifbdev up front and pass to init_bios (Chris)
    check for bad ifbdev in restore_mode too (Chris)
v9: fix up !fastboot bpp setting (Jesse)
    fix up !fastboot helper alloc (Jesse)
    make sure BIOS fb is sufficient for biggest active pipe (Jesse)
v10:fix up size calculation for proposed fbs (Chris)
    go back to two pass pipe fb assignment (Chris)
    add warning for active pipes w/o fbs (Chris)
    clean up num_pipes checks in fbdev_init and fbdev_restore_mode (Chris)
    move i915.fastboot into fbdev_init (Chris)
v11:make BIOS connector config usage unconditional (Daniel)
v12:fix up fb vs pipe size checking (Chris)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

This should allow BIOS fb inheritance to work on ILK+ machines too.

v2: handle tiled BIOS fbs (Kristian)
    split out common bits (Jesse)
v3: alloc fb obj out in _init
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Read out the current plane configuration at init time into a new
plane_config structure.  This allows us to track any existing
framebuffers attached to the plane and potentially re-use them in our
fbdev code for a smooth handoff.

v2: update for new pitch_for_width function (Jesse)
    comment how get_plane_config works with shared fbs (Jesse)
v3: s/ARGB/XRGB (Ville)
    use pipesrc width/height (Ville)
    fix fourcc comment (Bob)
    use drm_format_plane_cpp (Ville)
v4: use fb for tracking fb data object (Ville)
v5: fix up gen2 pitch limits (Ville)
v6: read out stride as well (Daniel)
v7: split out init ordering changes (Daniel)
    don't fetch config if !CONFIG_FB
v8: use proper height in get_plane_config (Chris)
v9: fix CONFIG_FB check for modular configs (Jani)
v10: add comment about stolen allocation stomping
v11: drop hw state readout hunk (Daniel)
v12: handle tiled BIOS fbs (Kristian)
     pull out common bits (Jesse)
v13: move fb obj alloc out to _init
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Early at init time, we can try to read out the plane config structure
and try to preserve it if possible.

v2: alloc fb obj at init time after fetching plane config
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

It's an enum, not a #define, you can't use it in asm files.

Introduced in commit 5fa10196 ("x86: Ignore NMIs that come in during
early boot"), and sadly I didn't compile-test things like I should have
before pushing out.

My weak excuse is that the x86 tree generally doesn't introduce stupid
things like this (and the ARM pull afterwards doesn't cause me to do a
compile-test either, since I don't cross-compile).

Cc: Don Zickus <dzickus@redhat.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull ARM fixes from Russell King:
 "A number of ARM updates for -rc, covering mostly ARM specific code,
  but with one change to modpost.c to allow Thumb section mismatches to
  be detected.

  ARM changes include reporting when an attempt is made to boot a LPAE
  kernel on hardware which does not support LPAE, rather than just being
  silent about it.

  A number of other minor fixes are included too"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 7992/1: boot: compressed: ignore bswapsdi2.S
  ARM: 7991/1: sa1100: fix compile problem on Collie
  ARM: fix noMMU kallsyms symbol filtering
  ARM: 7980/1: kernel: improve error message when LPAE config doesn't match CPU
  ARM: 7964/1: Detect section mismatches in thumb relocations
  ARM: 7963/1: mm: report both sections from PMD

Pull x86 fixes from Peter Anvin:
 "A small collection of minor fixes.  The FPU stuff is still pending, I
  fear.  I haven't heard anything from Suresh so I suspect I'm going to
  have to dig into the init specifics myself and fix up the patchset"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Ignore NMIs that come in during early boot
  x86, trace: Further robustify CR2 handling vs tracing
  x86, trace: Fix CR2 corruption when tracing page faults
  x86/efi: Quirk out SGI UV

Pull power fixes from Ben Herrenschmidt:
 "Here are a couple of powerpc fixes for 3.14.

  One is (another!) nasty TM problem, we can crash the kernel by forking
  inside a transaction.  The other one is a simple fix for an alignment
  issue which can hurt in LE mode"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Align p_dyn, p_rela and p_st symbols
  powerpc/tm: Fix crash when forking inside a transaction

Merge tag 'trace-fixes-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "In the past, I've had lots of reports about trace events not working.
  Developers would say they put a trace_printk() before and after the
  trace event but when they enable it (and the trace event said it was
  enabled) they would see the trace_printks but not the trace event.

  I was not able to reproduce this, but that's because I wasn't looking
  at the right location.  Recently, another bug came up that showed the
  issue.

  If your kernel supports signed modules but allows for non-signed
  modules to be loaded, then when one is, the kernel will silently set
  the MODULE_FORCED taint on the module.  Although, this taint happens
  without the need for insmod --force or anything of the kind, it labels
  the module with that taint anyway.

  If this tainted module has tracepoints, the tracepoints will be
  ignored because of the MODULE_FORCED taint.  But no error message will
  be displayed.  Worse yet, the event infrastructure will still be
  created letting users enable the trace event represented by the
  tracepoint, although that event will never actually be enabled.  This
  is because the tracepoint infrastructure allows for non-existing
  tracepoints to be enabled for new modules to arrive and have their
  tracepoints set.

  Although there are several things wrong with the above, this change
  only addresses the creation of the trace event files for tracepoints
  that are not created when a module is loaded and is tainted.  This
  change will print an error message about the module being tainted and
  not the trace events will not be created, and it does not create the
  trace event infrastructure"

* tag 'trace-fixes-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Do not add event files for modules that fail tracepoints

Pull irq fixes from Thomas Gleixner:
 - a bugfix for a long standing waitqueue race
 - a trivial fix for a missing include

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Include missing header file in irqdomain.c
  genirq: Remove racy waitqueue_active check