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Chris Wilson 3cc44feb98 drm/i915: Reduce nested prepare_remote_context() to a trylock 
On context retiring, we may invoke the kernel_context to unpin this
context. Elsewhere, we may use the kernel_context to modify this
context. This currently leads to an AB-BA lock inversion, so we need to
back-off from the contended lock, and repeat.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111732
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Fixes: a9877da2d6 ("drm/i915/oa: Reconfigure contexts on the fly")
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191126065521.2331017-1-chris@chris-wilson.co.uk
(cherry picked from commit 58b4c1a07a)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2019-11-27 10:12:19 +02:00
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accessibility
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acpi
Merge tag 'pm-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2019-11-01 09:30:48 -07:00
amba
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2019-10-23 06:26:33 -04:00
android
binder: Don't modify VMA bounds in ->mmap handler
2019-10-17 05:58:44 -07:00
ata
ata: libahci_platform: Fix regulator_get_optional() misuse
2019-10-25 14:22:20 -06:00
atm
atm: he: clean up an indentation issue
2019-09-25 13:54:45 +02:00
auxdisplay
Merge tag 'docs-5.4' of git://git.lwn.net/linux
2019-09-17 16:22:26 -07:00
base
PM: QoS: Drop frequency QoS types from device PM QoS
2019-10-21 02:05:21 +02:00
bcma
bcma: make arrays pwr_info_offset and sprom_sizes static const, shrinks object size
2019-09-13 16:44:49 +03:00
block
block: drbd: remove a stray unlock in __drbd_send_protocol()
2019-11-08 06:55:22 -07:00
bluetooth
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2019-09-15 14:17:27 +02:00
bus
bus: ti-sysc: Fix watchdog quirk handling
2019-10-18 08:45:32 -07:00
cdrom
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char
char/random: Add a newline at the end of the file
2019-10-02 13:49:43 -07:00
clk
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
2019-11-08 08:15:01 -08:00
clocksource
Merge tag 'timers-v5.4-rc6' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
2019-11-04 18:43:23 +01:00
connector
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counter
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cpufreq
cpufreq: intel_pstate: Fix invalid EPB setting
2019-11-08 11:29:58 +01:00
cpuidle
cpuidle: haltpoll: Take 'idle=' override into account
2019-10-22 11:43:17 +02:00
crypto
inet: stop leaking jiffies on the wire
2019-11-01 14:57:52 -07:00
dax
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dca
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devfreq
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dio
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dma
dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle
2019-10-23 21:15:21 +05:30
dma-buf
Revert "dma-buf: Add dma-buf heaps framework"
2019-10-30 16:41:49 -04:00
edac
EDAC/ghes: Fix Use after free in ghes_edac remove path
2019-10-17 11:27:05 +02:00
eisa
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extcon
Merge tag 'tag-chrome-platform-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
2019-09-19 14:14:28 -07:00
firewire
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firmware
efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN
2019-10-31 09:40:21 +01:00
fpga
Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2019-09-18 11:14:31 -07:00
fsi
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gnss
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gpio
Revert "gpio: merrifield: Pass irqchip when adding gpiochip"
2019-11-03 23:41:11 +01:00
gpu
drm/i915: Reduce nested prepare_remote_context() to a trylock
2019-11-27 10:12:19 +02:00
greybus
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hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2019-11-07 11:54:54 -08:00
hsi
Merge tag 'hsi-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
2019-09-22 12:02:21 -07:00
hv
Drivers: hv: vmbus: Fix harmless building warnings without CONFIG_PM_SLEEP
2019-10-01 14:49:45 -04:00
hwmon
hwmon: (ina3221) Fix read timeout issue
2019-10-28 18:46:55 -07:00
hwspinlock
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hwtracing
intel_th: pci: Add Jasper Lake PCH support
2019-11-04 15:01:25 +01:00
i2c
i2c: stm32f7: remove warning when compiling with W=1
2019-10-24 20:52:21 +02:00
i3c
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ide
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idle
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iio
iio: adc: stm32-adc: fix stopping dma
2019-10-27 15:57:19 +00:00
infiniband
RDMA/hns: Prevent memory leaks of eq->buf_list
2019-10-28 15:06:38 -03:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2019-10-25 17:31:53 -04:00
interconnect
interconnect: Add locking in icc_set_tag()
2019-10-20 12:14:41 +03:00
iommu
iommu/vt-d: Fix panic after kexec -p for kdump
2019-10-30 10:30:22 +01:00
ipack
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irqchip
Merge tag 'irqchip-fixes-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
2019-10-25 14:25:15 +02:00
isdn
net: use skb_queue_empty_lockless() in poll() handlers
2019-10-28 13:33:41 -07:00
leds
leds: lm3532: Fix optional led-max-microamp prop error handling
2019-09-12 20:45:52 +02:00
lightnvm
lightnvm: print error when target is not found
2019-09-05 13:17:01 -06:00
macintosh
cpufreq: Use per-policy frequency QoS
2019-10-21 02:05:21 +02:00
mailbox
mailbox: qcom-apcs: fix max_register value
2019-09-17 00:54:29 -05:00
mcb
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md
Merge tag 'for-linus-2019-10-18' of git://git.kernel.dk/linux-block
2019-10-18 22:29:36 -04:00
media
Merge v5.4-rc4 into drm-next
2019-10-23 12:10:05 +02:00
memory
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memstick
memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'
2019-10-09 11:08:03 +02:00
message
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mfd
mfd: mt6397: Fix probe after changing mt6397-core
2019-10-24 08:49:25 +01:00
misc
Merge v5.4-rc4 into drm-next
2019-10-23 12:10:05 +02:00
mmc
mmc: mxs: fix flags passed to dmaengine_prep_slave_sg
2019-10-21 16:16:38 +02:00
mtd
mtd: rawnand: au1550nd: Fix au_read_buf16() prototype
2019-10-07 09:56:36 +02:00
mux
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net
Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
2019-11-08 16:50:14 -08:00
nfc
NFC: st21nfca: fix double free
2019-11-06 21:48:29 -08:00
ntb
NTB: fix IDT Kconfig typos/spellos
2019-09-23 17:20:40 -04:00
nubus
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nvdimm
Merge tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2019-09-29 10:33:41 -07:00
nvme
Merge tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block
2019-11-08 18:15:55 -08:00
nvmem
Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2019-09-18 11:14:31 -07:00
of
of: reserved_mem: add missing of_node_put() for proper ref-counting
2019-10-23 15:15:05 -05:00
opp
opp: Reinitialize the list_kref before adding the static OPPs again
2019-10-23 10:58:44 +05:30
oprofile
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parisc
parisc: Remove 32-bit DMA enforcement from sba_iommu
2019-10-14 21:44:26 +02:00
parport
Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2019-09-18 11:14:31 -07:00
pci
PCI: PM: Fix pci_power_up()
2019-10-15 23:51:36 +02:00
pcmcia
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
perf
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phy
Merge tag 'pci-v5.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2019-09-23 19:16:01 -07:00
pinctrl
pinctrl: stmfx: fix valid_mask init sequence
2019-11-07 10:06:46 +01:00
platform
platform/x86: i2c-multi-instantiate: Fail the probe if no IRQ provided
2019-10-14 15:31:50 +03:00
pnp
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power
Merge tag 'for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
2019-09-22 12:04:59 -07:00
powercap
Merge tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2019-09-17 19:15:14 -07:00
pps
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ps3
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ptp
ptp: fix typo of "mechanism" in Kconfig help text
2019-10-07 14:55:46 -04:00
pwm
pwm: bcm-iproc: Prevent unloading the driver module while in use
2019-11-08 18:38:06 +01:00
rapidio
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ras
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regulator
Merge tag 'regulator-fix-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
2019-10-23 15:31:17 -04:00
remoteproc
Merge tag 'rproc-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
2019-09-22 10:55:08 -07:00
reset
reset: fix of_reset_control_get_count kerneldoc comment
2019-10-24 10:26:33 +02:00
rpmsg
rpmsg: glink-smem: Name the edge based on parent remoteproc
2019-09-17 15:33:31 -07:00
rtc
Merge tag 'rtc-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2019-09-22 11:05:43 -07:00
s390
s390/zcrypt: fix memleak at release
2019-10-22 17:55:51 +02:00
sbus
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scsi
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-11-02 11:15:52 -07:00
sfi
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sh
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siox
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slimbus
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soc
soc: imx: gpc: fix initialiser format
2019-10-26 19:47:31 +08:00
soundwire
soundwire: slave: fix scanf format
2019-10-24 16:55:45 +05:30
spi
Merge tag 'leds-for-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
2019-09-17 18:40:42 -07:00
spmi
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ssb
ssb: make array pwr_info_offset static const, makes object smaller
2019-09-13 17:23:18 +03:00
staging
staging: Fix error return code in vboxsf_fill_super()
2019-11-07 16:29:18 +01:00
target
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-11-02 11:15:52 -07:00
tc
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tee
tee/shm: untag user pointers in tee_shm_register
2019-09-25 17:51:41 -07:00
thermal
cpufreq: Use per-policy frequency QoS
2019-10-21 02:05:21 +02:00
thunderbolt
thunderbolt: Drop unnecessary read when writing LC command in Ice Lake
2019-10-08 12:08:21 +03:00
tty
8250-men-mcb: fix error checking when get_num_ports returns -ENODEV
2019-10-15 21:38:41 +02:00
uio
Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2019-09-18 11:14:31 -07:00
usb
usb: dwc3: gadget: fix race when disabling ep with cancelled xfers
2019-10-31 18:57:54 +01:00
vfio
vfio/type1: Initialize resv_msi_base
2019-10-15 14:07:01 -06:00
vhost
vringh: fix copy direction of vringh_iov_push_kern()
2019-10-28 04:25:04 -04:00
video
Merge v5.4-rc7 into drm-next
2019-11-14 05:53:10 +10:00
virt
virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr
2019-10-10 14:50:32 +02:00
virtio
virtio_ring: fix stalls for packed rings
2019-10-28 04:24:46 -04:00
visorbus
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vlynq
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vme
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w1
w1: ds250x: Fix build error without CRC16
2019-10-10 15:35:41 +02:00
watchdog
watchdog: bd70528: Add MODULE_ALIAS to allow module auto loading
2019-11-05 16:58:12 +01:00
xen
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2019-10-19 17:09:11 -04:00
zorro
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Kconfig
Merge tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2019-09-18 11:05:34 -07:00
Makefile
Merge tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2019-09-18 11:05:34 -07:00