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Chris Wilson bcbdb6d011 drm/i915: Protect gen7 irq_seqno_barrier with uncore lock 
Faced with sporadic machine hangs on gen7, that mimic the issue of
concurrent writes to the same cacheline and seem to start with
commit 9b9ed3093613 (drm/i915: Remove forcewake dance from seqno/irq
barrier on legacy gen6+), let us restore the spinlock around the mmio
read.

Fixes: 9b9ed3093613 (drm/i915: Remove forcewake dance from seqno/irq...)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1461744121-27051-1-git-send-email-chris@chris-wilson.co.uk
Tested-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
2016-04-28 09:11:44 +01:00
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accessibility
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acpi
Merge branch 'acpi-processor'
2016-04-02 01:17:36 +02:00
amba
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android
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ata
Merge branch 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2016-03-18 20:06:46 -07:00
atm
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2016-03-17 21:38:27 -07:00
auxdisplay
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base
PM / wakeirq: fix wakeirq setting after wakup re-configuration from sysfs
2016-04-07 22:23:47 +02:00
bcma
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block
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2016-04-07 16:34:26 -07:00
bluetooth
Bluetooth: btmrvl_sdio: fix firmware activation failure
2016-03-10 19:51:29 +01:00
bus
arm[64] perf updates for 4.6:
2016-03-21 13:14:16 -07:00
cdrom
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char
Revert "ppdev: use new parport device model"
2016-03-25 09:02:13 -07:00
clk
clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepll
2016-03-29 16:31:16 -07:00
clocksource
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-24 10:32:42 -07:00
connector
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cpufreq
Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'acpi-cppc'
2016-04-08 21:46:05 +02:00
cpuidle
cpuidle: menu: Fall back to polling if next timer event is near
2016-03-21 15:50:28 +01:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2016-03-23 06:12:39 -07:00
dca
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devfreq
PM / devfreq: Spelling s/frequnecy/frequency/
2016-03-17 02:30:16 +01:00
dio
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dma
asm-generic changes for 4.6
2016-03-24 23:13:48 -07:00
dma-buf
dma-buf: Update docs for SYNC ioctl
2016-03-21 09:26:45 +01:00
edac
EDAC queue for 4.6
2016-03-16 08:36:55 -07:00
eisa
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extcon
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firewire
IEEE 1394 subsystem patch:
2016-03-25 08:52:25 -07:00
firmware
firmware: qemu_fw_cfg.c: hold ACPI global lock during device access
2016-04-07 15:16:40 +03:00
fmc
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fpga
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gpio
gpio: pca953x: Use correct u16 value for register word write
2016-04-08 11:49:47 +02:00
gpu
drm/i915: Protect gen7 irq_seqno_barrier with uncore lock
2016-04-28 09:11:44 +01:00
hid
drivers/hid/uhid.c: check write() bitness using in_compat_syscall
2016-03-22 15:36:02 -07:00
hsi
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hv
Char/Misc patches for 4.6-rc1
2016-03-17 13:47:50 -07:00
hwmon
hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated
2016-03-27 10:37:48 -07:00
hwspinlock
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hwtracing
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i2c
i2c: jz4780: really prevent potential division by zero
2016-04-09 08:36:44 +02:00
ide
ide: palm_bk3710: test clock rate to avoid division by 0
2016-03-20 16:59:27 -04:00
idle
intel_idle: Add KBL support
2016-04-07 22:11:08 +02:00
iio
Second set of IIO fixes for the 4.6 cycle.
2016-04-04 13:45:10 -07:00
infiniband
Revert "ib_srpt: Convert to percpu_ida tag allocation"
2016-04-07 18:16:20 -07:00
input
Merge branch 'akpm' (patches from Andrew)
2016-03-25 16:59:11 -07:00
iommu
iommu/vt-d: Silence an uninitialized variable warning
2016-04-07 14:51:47 +02:00
ipack
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irqchip
irqchip/mbigen: Make CONFIG_HISILICON_IRQ_MBIGEN a hidden option
2016-03-23 12:02:29 +01:00
isdn
Drivers: isdn: hisax: isac.c: Fix assignment and check into one expression.
2016-03-27 22:38:12 -04:00
leds
platform-drivers-x86 for 4.6-1
2016-03-23 17:20:59 -07:00
lguest
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lightnvm
lightnvm: do not load L2P table if not supported
2016-03-18 18:10:38 -07:00
macintosh
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mailbox
Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'acpi-cppc'
2016-04-08 21:46:05 +02:00
mcb
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md
Merge tag 'md/4.6-rc2-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2016-04-09 11:23:27 -07:00
media
media fixes for v4.6-rc2
2016-04-05 06:47:50 -07:00
memory
MTD updates for v4.6
2016-03-24 19:57:15 -07:00
memstick
drivers/memstick/host/r592.c: avoid gcc-6 warning
2016-03-25 16:37:42 -07:00
message
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mfd
- New Drivers
2016-03-18 10:15:11 -07:00
misc
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
mmc
MMC host:
2016-04-10 17:38:55 -07:00
mtd
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
net
tuntap: restore default qdisc
2016-04-08 15:52:45 -04:00
nfc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-03-19 10:05:34 -07:00
ntb
NTB: Remove _addr functions from ntb_hw_amd
2016-03-26 11:44:33 -04:00
nubus
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nvdimm
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2016-04-09 14:05:45 -07:00
nvme
nvme: avoid cqe corruption when update at the same time as read
2016-03-22 10:27:29 -06:00
nvmem
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of
DeviceTree updates for 4.6:
2016-03-19 15:15:07 -07:00
oprofile
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
parisc
PCI changes for the v4.6 merge window:
2016-03-16 14:45:55 -07:00
parport
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pci
Revert "PCI: dra7xx: Mark driver as broken"
2016-03-22 07:50:11 -05:00
pcmcia
pcmcia: db1xxx_ss: fix last irq_to_gpio user
2016-03-29 22:48:53 +02:00
perf
drivers/perf: arm_pmu: avoid NULL dereference when not using devicetree
2016-03-21 11:36:17 +00:00
phy
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pinctrl
Revert "Revert "pinctrl: lantiq: Implement gpio_chip.to_irq""
2016-04-01 15:21:27 +02:00
platform
Convert straggling drivers to new six-argument get_user_pages()
2016-04-02 18:35:05 -05:00
pnp
PNP / ACPI: add ACPI_RESOURCE_TYPE_SERIAL_BUS as a valid type
2016-03-09 23:50:55 +01:00
power
Power management and ACPI material for v4.6-rc1, part 2
2016-03-25 16:55:37 -07:00
powercap
powercap: intel_rapl: Add missing Haswell model
2016-04-05 03:44:48 +02:00
pps
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ps3
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ptp
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 12:13:56 -07:00
pwm
pwm: omap-dmtimer: Add debug message for effective period and duty cycle
2016-03-23 17:11:48 +01:00
rapidio
Convert straggling drivers to new six-argument get_user_pages()
2016-04-02 18:35:05 -05:00
ras
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regulator
- New Drivers
2016-03-18 10:15:11 -07:00
remoteproc
remoteproc: st: fix check of syscon_regmap_lookup_by_phandle() return value
2016-03-28 16:19:00 -07:00
reset
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rpmsg
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rtc
RTC for 4.6 #2
2016-03-24 22:49:08 -07:00
s390
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2016-04-01 07:15:54 -05:00
sbus
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scsi
SCSI fixes on 20160408
2016-04-09 12:00:42 -07:00
sfi
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sh
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sn
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soc
ARM: SoC driver updates for v4.6
2016-03-20 15:40:32 -07:00
spi
Merge remote-tracking branches 'spi/fix/omap2' and 'spi/fix/rockchip' into spi-linus
2016-04-04 10:05:49 -07:00
spmi
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ssb
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staging
Staging / IIO driver fixes for 4.6-rc3
2016-04-09 12:09:37 -07:00
target
target: add a new add_wwn_groups fabrics method
2016-03-30 20:06:44 -07:00
tc
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thermal
Thermal: Ignore invalid trip points
2016-03-18 14:10:57 +08:00
thunderbolt
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tty
tty: Fix merge of "tty: Refactor tty_open()"
2016-03-31 20:49:39 -07:00
uio
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usb
USB fixes for 4.6-rc3
2016-04-09 12:23:02 -07:00
uwb
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vfio
VFIO updates for v4.6-rc1
2016-03-17 13:05:09 -07:00
vhost
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2016-03-22 12:41:14 -07:00
video
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
virt
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virtio
virtio: virtio 1.0 cs04 spec compliance for reset
2016-04-07 15:16:39 +03:00
vlynq
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vme
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w1
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watchdog
hpwdt: use nmi_panic() when kernel panics in NMI handler
2016-03-22 15:36:02 -07:00
xen
xen/events: Mask a moving irq
2016-04-04 11:18:00 +01:00
zorro
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Kconfig
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Makefile
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