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068396bb21
linux/drivers
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Thomas Hellström 068396bb21 drm/i915/ttm: Rework object initialization slightly 
We may end up in i915_ttm_bo_destroy() in an error path before the
object is fully initialized. In that case it's not correct to call
__i915_gem_free_object(), because that function
a) Assumes the gem object refcount is 0, which it isn't.
b) frees the placements which are owned by the caller until the
init_object() region ops returns successfully. Fix this by providing
a lightweight cleanup function __i915_gem_object_fini() which is also
called by __i915_gem_free_object().

While doing this, also make sure we call dma_resv_fini() as part of
ordinary object destruction and not from the RCU callback that frees
the object. This will help track down bugs where the object is incorrectly
locked from an RCU lookup.

Finally, make sure the object isn't put on the region list until it's
either locked or fully initialized in order to block list processing of
partially initialized objects.

v2:
- The TTM object backend memory was freed before the gem pages were
  put. Separate this functionality into __i915_gem_object_pages_fini()
  and call it from the TTM delete_mem_notify() callback.
v3:
- Include i915_gem_object_free_mmaps() in __i915_gem_object_pages_fini()
  to make sure we don't inadvertedly introduce a race.

Fixes: 48b0961269 ("drm/i915: Move __i915_gem_free_object to ttm_bo_destroy")
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com> #v1
Link: https://patchwork.freedesktop.org/patch/msgid/20210930113236.583531-1-thomas.hellstrom@linux.intel.com
2021-10-01 13:11:58 +02:00
..
accessibility
acpi Additional ACPI updates for 5.15-rc1 2021-09-10 13:29:04 -07:00
amba
android
ata libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD. 2021-09-03 08:06:02 -06:00
atm
auxdisplay
base Merge branches 'pm-cpufreq', 'pm-sleep' and 'pm-em' 2021-09-10 20:26:08 +02:00
bcma Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
block virtio,vdpa,vhost: features, fixes 2021-09-11 14:48:42 -07:00
bluetooth
bus ARM: SoC drivers for 5.15 2021-09-01 15:25:28 -07:00
cdrom
char IPMI: A couple of very minor fixes for style and rate limiting 2021-09-12 11:44:58 -07:00
clk One patch to fix an unused variable warning in a Qualcomm clk driver. 2021-09-11 10:05:56 -07:00
clocksource - converted Pistachio platform to use MIPS generic kernel 2021-09-03 11:11:54 -07:00
comedi
connector
counter
cpufreq Merge branches 'pm-cpufreq', 'pm-sleep' and 'pm-em' 2021-09-10 20:26:08 +02:00
cpuidle - Core Frameworks 2021-09-07 12:38:59 -07:00
crypto pci-v5.15-changes 2021-09-07 19:13:42 -07:00
cxl cxl for v5.15 2021-09-09 11:48:27 -07:00
dax libnvdimm for v5.15 2021-09-09 11:39:57 -07:00
dca
devfreq devfreq: use HZ macros 2021-09-08 11:50:26 -07:00
dio
dma dmaengine updates for v5.15-rc1 2021-09-09 11:07:47 -07:00
dma-buf dma-buf: DMABUF_SYSFS_STATS should depend on DMA_SHARED_BUFFER 2021-09-07 12:42:21 +05:30
edac Updates to the interrupt core and driver subsystems: 2021-08-30 14:38:37 -07:00
eisa
extcon
firewire FireWire (IEEE 1394) subsystem updates: 2021-09-11 09:47:33 -07:00
firmware - Add the tegra3 thermal sensor and fix the compilation testing on 2021-09-11 09:20:57 -07:00
fpga Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
fsi
gnss
gpio gpio updates for v5.15 2021-09-07 12:27:27 -07:00
gpu drm/i915/ttm: Rework object initialization slightly 2021-10-01 13:11:58 +02:00
greybus
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2021-09-02 14:30:46 -07:00
hsi
hv hyperv-next for 5.15 2021-09-01 18:25:20 -07:00
hwmon Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
hwspinlock
hwtracing Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
i2c platform-drivers-x86 for v5.15-1 2021-09-02 13:49:39 -07:00
i3c
idle
iio Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
infiniband RDMA v5.15 merge window 2nd Pull Request 2021-09-09 11:14:14 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2021-09-11 09:08:28 -07:00
interconnect interconnect changes for 5.15 2021-08-24 15:33:04 +02:00
iommu virtio,vdpa,vhost: features, fixes 2021-09-11 14:48:42 -07:00
ipack TTY / Serial patches for 5.15-rc1 2021-09-01 09:51:16 -07:00
irqchip Merge branch irq/qcom-pdc-nowake-cleanup into irq/irqchip-next 2021-08-23 09:50:46 +01:00
isdn Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
leds
macintosh Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
mailbox mailbox: cmdq: add multi-gce clocks support for mt8195 2021-08-31 22:57:45 -05:00
mcb
md libnvdimm for v5.15 2021-09-09 11:39:57 -07:00
media Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
memory
memstick Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
message
mfd - Core Frameworks 2021-09-07 12:38:59 -07:00
misc Misc driver fix for 5.15-rc1 2021-09-12 11:56:00 -07:00
mmc Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
most
mtd Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
mux
net pci-v5.15-changes 2021-09-07 19:13:42 -07:00
nfc nfc: st95hf: remove unused header includes 2021-08-26 09:13:36 +01:00
ntb Bug fixes and clean-ups for Linux v5.15 2021-09-07 13:05:02 -07:00
nubus
nvdimm cxl for v5.15 2021-09-09 11:48:27 -07:00
nvme nvme: add error handling support for add_disk() 2021-09-06 10:08:09 +02:00
nvmem
of of: property: Disable fw_devlink DT support for X86 2021-09-10 11:21:49 -05:00
opp Merge branches 'pm-pci', 'pm-sleep', 'pm-domains' and 'powercap' 2021-08-30 19:25:42 +02:00
parisc parisc: Move pci_dev_is_behind_card_dino to where it is used 2021-09-09 12:44:31 +02:00
parport parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
pci More ACPI updates for 5.15-rc1 2021-09-08 16:33:21 -07:00
pcmcia
perf
phy Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
pinctrl Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
platform chrome platform changes for 5.15 2021-09-08 16:43:46 -07:00
pnp
power power supply and reset changes for the v5.15 series 2021-08-30 11:47:32 -07:00
powercap powercap: Add Power Limit4 support for Alder Lake SoC 2021-08-25 20:12:16 +02:00
pps
ps3
ptp ptp: ocp: Simplify Kconfig. 2021-08-26 12:06:42 +01:00
pwm pwm: mtk-disp: Implement atomic API .get_state() 2021-09-02 22:27:46 +02:00
rapidio
ras
regulator kernel/locking: Add context to ww_mutex_trylock() 2021-09-17 15:08:41 +02:00
remoteproc
reset ARM: SoC drivers for 5.15 2021-09-01 15:25:28 -07:00
rpmsg
rtc rtc: rx8010: select REGMAP_I2C 2021-09-09 10:18:40 +02:00
s390 2nd batch of s390 updates for 5.15 merge window 2021-09-09 12:55:12 -07:00
sbus
scsi pci-v5.15-changes 2021-09-07 19:13:42 -07:00
sh
siox
slimbus Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
soc ARM: SoC drivers for 5.15 2021-09-01 15:25:28 -07:00
soundwire sound updates for 5.15-rc1 2021-09-01 10:29:29 -07:00
spi ARM: SoC drivers for 5.15 2021-09-01 15:25:28 -07:00
spmi
ssb
staging Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
target SCSI misc on 20210902 2021-09-02 15:09:46 -07:00
tc
tee
thermal - Add the tegra3 thermal sensor and fix the compilation testing on 2021-09-11 09:20:57 -07:00
thunderbolt thunderbolt: test: split up test cases in tb_test_credit_alloc_all 2021-09-06 12:27:03 -07:00
tty parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
uio
usb More USB changes for 5.15-rc1 2021-09-05 11:19:15 -07:00
vdpa virtio,vdpa,vhost: features, fixes 2021-09-11 14:48:42 -07:00
vfio VFIO update for v5.15-rc1 2021-09-02 13:41:33 -07:00
vhost virtio,vdpa,vhost: features, fixes 2021-09-11 14:48:42 -07:00
video drm fixes for 5.15-rc1 2021-09-10 11:22:23 -07:00
virt
virtio virtio,vdpa,vhost: features, fixes 2021-09-11 14:48:42 -07:00
visorbus
vlynq
vme
w1
watchdog watchdog: ixp4xx: Rewrite driver to use core 2021-08-22 10:28:12 +02:00
xen Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
zorro
Kconfig
Makefile