[i915_bdw] GPU hang bug, typo fix

[Timo Aaltonen]

With the current kernel there's a way to make the GPU hang:

- suspend from login screen
- resume
-> GPU is non-fatally hung, until logging in essentially hangs the machine since Unity fails to fully start

upstream commit 6689c167ae14c312972e fixed it, the original non-rebased version from intel-gfx@ list was backported because it was easier.

Also, commit fa008cd37392160f9 was cleanly cherry-picked and contained a function argument type which doesn't exist on our kernel. It needs to be renamed back to what it used to be and still is on our kernel. This caused compiler warnings that had gone unnoticed until now.

[Timo Aaltonen (tjaalton)]

The GPU hang bug is on kernels up to and including v3.17, so Utopic needs to be patched too.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1384469

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Brad Figg (brad-figg)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-trusty' to 'verification-done-trusty'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.13.0-40.69

---------------
linux (3.13.0-40.69) trusty; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - re-used previous tracking bug

  [ Upstream Kernel Changes ]

  * regmap: fix kernel hang on regmap_bulk_write with zero val_count.

linux (3.13.0-40.68) trusty; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1388943
  * SAUCE: DEP8 test to run our regression tests
    - LP: #1385330
  * SAUCE: The very first thing we should do when testing is make sure we
    are testing the correct kernel
    - LP: #1385330

  [ dann frazier ]

  * [Config] Disable CONFIG_IPMI_SI_PROBE_DEFAULTS on armhf and arm64
    - LP: #1388952

  [ Duc Dang ]

  * SAUCE: (no-up) [PCIE] APM X-Gene: Remove debug messages in MSI
    interrupt handler path.
    - LP: #1382244
  * SAUCE: (no-up) PCI: X-Gene: Fix max payload size and phantom function
    configuration
    - LP: #1386261

  [ McAulay, Alistair ]

  * SAUCE: drm/i915: Rework GPU reset sequence to match driver load & thaw
    - LP: #1384469

  [ Timo Aaltonen ]

  * SAUCE: i915_bdw: Fix cherry-pick typo
    - LP: #1384469

  [ Upstream Kernel Changes ]

  * Revert "mac80211: disable uAPSD if all ACs are under ACM"
    - LP: #1381234
  * Revert "iwlwifi: dvm: don't enable CTS to self"
    - LP: #1381234
  * Revert "lzo: properly check for overruns"
    - LP: #1387886
  * drm/i915: provide interface for audio driver to query cdclk
    - LP: #1381168
  * regulatory: add NUL to alpha2
    - LP: #1381234
  * percpu: fix pcpu_alloc_pages() failure path
    - LP: #1381234
  * percpu: perform tlb flush after pcpu_map_pages() failure
    - LP: #1381234
  * cgroup: reject cgroup names with '\n'
    - LP: #1381234
  * vfs: add d_is_dir()
    - LP: #1381234
  * CIFS: Fix directory rename error
    - LP: #1381234
  * usb: phy: twl4030-usb: Fix lost interrupts after ID pin goes down
    - LP: #1381234
  * rtlwifi: rtl8192cu: Add new ID
    - LP: #1381234
  * CIFS: Fix wrong restart readdir for SMB1
    - LP: #1381234
  * CIFS: Fix wrong filename length for SMB2
    - LP: #1381234
  * ahci: Add Device IDs for Intel 9 Series PCH
    - LP: #1381234
  * ata_piix: Add Device IDs for Intel 9 Series PCH
    - LP: #1381234
  * USB: zte_ev: fix removed PIDs
    - LP: #1381234
  * USB: ftdi_sio: add support for NOVITUS Bono E thermal printer
    - LP: #1381234
  * USB: sierra: avoid CDC class functions on "68A3" devices
    - LP: #1381234
  * USB: sierra: add 1199:68AA device ID
    - LP: #1381234
  * iommu/arm-smmu: fix programming of SMMU_CBn_TCR for stage 1
    - LP: #1381234
  * iommu/arm-smmu: remove pgtable_page_{c,d}tor()
    - LP: #1381234
  * usb: gadget: fusb300_udc.h: Fix typo in include guard
    - LP: #1381234
  * usb: phy: tegra: Avoid use of sizeof(void)
    - LP: #1381234
  * arm64: use irq_set_affinity with force=false when migrating irqs
    - LP: #1381234
  * block: Fix dev_t minor allocation lifetime
    - LP: #1381234
  * usb: dwc3: core: fix order of PM runtime calls
    - LP: #1381234
  * usb: dwc3: core: fix ordering for PHY suspend
    - LP: #1381234
  * usb: dwc3: omap: fix ordering for runtime pm calls
    - LP: #1381234
  * ...

[Brad Figg (brad-figg)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-utopic' to 'verification-done-utopic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.16.0-36.48

---------------
linux (3.16.0-36.48) utopic; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1443946
  * Merged back Ubuntu-3.16.0-34.47 security release

linux (3.16.0-35.46) utopic; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1442324

  [ Andy Whitcroft ]

  * [Config] CONFIG_DEFAULT_MMAP_MIN_ADDR needs to match on armhf and arm64
    - LP: #1418140

  [ Chris J Arges ]

  * [Config] CONFIG_PCIEASPM_DEBUG=y
    - LP: #1398544

  [ dann frazier ]

  * [Config] CONFIG_RTC_DRV_EFI=y on arm64
    - LP: #1441291

  [ Upstream Kernel Changes ]

  * Revert "USB: serial: make bulk_out_size a lower limit"
    - LP: #1441317
  * Revert "i2c: core: Dispose OF IRQ mapping at client removal time"
    - LP: #1441317
  * Revert "net: cx82310_eth: use common match macro"
    - LP: #1441317
  * KEYS: request_key() should reget expired keys rather than give
    EKEYEXPIRED
    - LP: #1124250
  * drm/i915/bdw: 3D_CHICKEN3 has write mask bits
    - LP: #1374389
  * drm/i915: call lpt_init_clock_gating on BDW too
    - LP: #1374389
  * drm/i915/bdw: Apply workarounds in render ring init function
    - LP: #1374389
  * drm/i915/bdw: Cleanup pre prod workarounds
    - LP: #1374389
  * drm/i915: Refactor Broadwell PIPE_CONTROL emission into a helper.
    - LP: #1374389
  * drm/i915: Add the WaCsStallBeforeStateCacheInvalidate:bdw workaround.
    - LP: #1374389
  * drm/i915/bdw: Remove BDW preproduction W/As until C stepping.
    - LP: #1374389
  * drm/i915: Rework GPU reset sequence to match driver load & thaw
    - LP: #1384469
  * drm/ast: switch to using CACHED by default for sysram
    - LP: #1420627
  * drm/ast: Add missing entry to dclk_table[]
    - LP: #1420627
  * drm/ast: Add reduced blanking modes for wide screen mode
    - LP: #1420627
  * drm/ast: Try to use MMIO registers when PIO isn't supported
    - LP: #1420627
  * drm/ast: POST chip at probe time if VGA not enabled
    - LP: #1420627
  * drm/ast: Properly initialize P2A base before using it in
    ast_init_3rdtx()
    - LP: #1420627
  * drm/ast: Don't assume DVO enabled means SIL164 on uninitialized chips
    - LP: #1420627
  * drm/ast: Cleanup analog init code path
    - LP: #1420627
  * audit: correctly record file names with different path name types
    - LP: #1439441
  * of: Create of_console_check() for selecting a console specified in
    /chosen
    - LP: #1438585
  * of: Enable console on serial ports specified by /chosen/stdout-path
    - LP: #1438585
  * of: correct of_console_check()'s return value
    - LP: #1438585
  * of: Add bindings for chosen node, stdout-path
    - LP: #1438585
  * of: add optional options parameter to of_find_node_by_path()
    - LP: #1438585
  * of: support passing console options with stdout-path
    - LP: #1438585
  * netfilter: nf_tables: disable preemption when restoring chain counters
    - LP: #1441317
  * netfilter: nf_tables: fix leaks in error path of nf_tables_newchain()
    - LP: #1441317
  * ipvs: rerouting to local clients is not needed anymore
    - LP: #1441317
  * netfilter: nft_compat: fix module refcount underflow
    - LP: #1441317
  * netf...