linux/drivers
Zack Rusin 298799a282 drm/vmwgfx: Fix gem refcounting and memory evictions
v2: Add the last part of the ref count fix which was spotted by
Philipp Sieweck where the ref count of cpu writers is off due to
ERESTARTSYS or EBUSY during bo waits.

The initial GEM port broke refcounting on shareable (prime) surfaces and
memory evictions. The prime surfaces broke because the parent surfaces
weren't increasing the ref count on GEM surfaces, which meant that
the memory backing textures could have been deleted while the texture
was still accessible. The evictions broke due to a typo, the code was
supposed to exit if the passed buffers were not vmw_buffer_object
not if they were. They're tied because the evictions depend on having
memory to actually evict.

This fixes crashes with XA state tracker which is used for xrender
acceleration on xf86-video-vmware, apps/tests which use a lot of
memory (a good test being the piglit's streaming-texture-leak) and
desktops.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Fixes: 8afa13a058 ("drm/vmwgfx: Implement DRIVER_GEM")
Reported-by: Philipp Sieweck <psi@informatik.uni-kiel.de>
Cc: <stable@vger.kernel.org> # v5.17+
Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com>
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220420040328.1007409-1-zack@kde.org
2022-04-20 21:30:43 -04:00
..
accessibility
acpi More ACPI updates for 5.18-rc1 2022-03-31 13:08:13 -07:00
amba
android
ata Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-17 13:56:58 -07:00
auxdisplay auxdisplay: lcd2s: Use array size explicitly in lcd2s_gotoxy() 2022-03-18 20:31:14 +01:00
base Device properties code update for 5.18-rc1 2022-03-29 11:30:12 -07:00
bcma Core MTD changes: 2022-03-25 13:35:34 -07:00
block for-5.18/drivers-2022-04-02 2022-04-02 11:03:03 -07:00
bluetooth Bluetooth: ath3k: remove superfluous header files 2022-03-18 17:12:09 +01:00
bus Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
cdrom SCSI misc on 20220324 2022-03-24 19:37:53 -07:00
char Random number generator fixes for Linux 5.18-rc1. 2022-03-31 14:51:34 -07:00
clk A single revert to fix a boot regression seen when clk_put() started 2022-04-03 12:21:14 -07:00
clocksource asm-generic updates for 5.18 2022-03-23 18:03:08 -07:00
comedi
connector
counter Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
cpufreq Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm 2022-03-22 12:15:47 +01:00
cpuidle RISC-V CPU Idle Support 2022-03-30 16:17:54 -07:00
crypto virtio: features, fixes 2022-03-31 13:57:15 -07:00
cxl cxl/core/port: Fix NULL but dereferenced coccicheck error 2022-03-22 10:51:17 -07:00
dax dax for 5.18 2022-03-24 18:12:09 -07:00
dca
devfreq
dio
dma dmaengine updates for v5.18-rc1 2022-03-30 10:54:49 -07:00
dma-buf dma-buf: handle empty dma_fence_arrays gracefully 2022-03-29 09:14:30 +02:00
edac Merge branch 'edac-amd64' into edac-updates-for-v5.18 2022-03-21 10:34:57 +01:00
eisa
extcon
firewire
firmware Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
fpga
fsi
gnss
gpio gpio fixes for v5.18-rc1 2022-04-01 10:26:09 -07:00
gpu drm/vmwgfx: Fix gem refcounting and memory evictions 2022-04-20 21:30:43 -04:00
greybus
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2022-04-01 10:14:32 -07:00
hsi
hv hyperv-next for 5.18 2022-03-24 12:30:37 -07:00
hwmon Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
hwspinlock
hwtracing Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
i2c Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2022-03-26 12:46:08 -07:00
i3c
idle cpuidle: intel_idle: Drop redundant backslash at line end 2022-03-17 14:32:59 +01:00
iio Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
infiniband SCSI misc on 20220324 2022-03-24 19:37:53 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2022-04-01 10:14:32 -07:00
interconnect
iommu dma-mapping updates for Linux 5.18 2022-03-29 08:50:14 -07:00
ipack
irqchip asm-generic updates for 5.18 2022-03-23 18:03:08 -07:00
isdn mISDN: fix typo "frame to short" -> "frame too short" 2022-03-21 13:26:38 +00:00
leds LED updates for 5.18-rc1. Nothing major here, there are two drivers 2022-03-27 14:09:48 -07:00
macintosh
mailbox
mcb
md - Fix DM integrity shrink crash due to journal entry not being marked 2022-04-01 15:57:27 -07:00
media drm for 5.18-rc1 2022-03-24 16:19:43 -07:00
memory ARM driver updates for 5.18 2022-03-23 18:23:13 -07:00
memstick
message
mfd - New Drivers 2022-03-25 13:56:18 -07:00
misc Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
mmc TTY/Serial driver changes for 5.18-rc1 2022-03-28 13:00:51 -07:00
most
mtd This pull request contains fixes for JFFS2, UBI and UBIFS 2022-03-31 16:09:41 -07:00
mux
net virtio: features, fixes 2022-03-31 13:57:15 -07:00
nfc spi: Updates for v5.18 2022-03-21 18:33:57 -07:00
ntb
nubus
nvdimm libnvdimm for 5.18 2022-03-30 10:04:11 -07:00
nvme for-5.18/drivers-2022-04-01 2022-04-01 16:26:57 -07:00
nvmem nvmem: brcm_nvram: parse NVRAM content into NVMEM cells 2022-03-18 14:08:36 +01:00
of Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
opp
parisc parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
parport parport_pc: Also enable driver for PCI systems 2022-03-18 14:01:41 +01:00
pci pci-v5.18-changes-2 2022-04-02 10:54:52 -07:00
pcmcia
peci
perf RISC-V Patches for the 5.18 Merge Window, Part 1 2022-03-25 10:11:38 -07:00
phy phy: PHY_FSL_LYNX_28G should depend on ARCH_LAYERSCAPE 2022-03-29 08:45:16 -07:00
pinctrl Pin control bulk changes for the v5.18 kernel cycle 2022-03-28 11:52:53 -07:00
platform chrome platform changes for 5.18 2022-04-02 10:44:18 -07:00
pnp PNP update for 5.18-rc1 2022-03-21 14:46:01 -07:00
power Driver core changes for 5.18-rc1 2022-03-28 12:41:28 -07:00
powercap
pps pps: generators: pps_gen_parport: Switch to use module_parport_driver() 2022-03-18 14:01:19 +01:00
ps3
ptp ptp: ocp: handle error from nvmem_device_find 2022-03-30 12:08:11 -07:00
pwm
rapidio
ras
regulator regulator: Fixes for v5.18 2022-03-30 10:58:28 -07:00
remoteproc remoteproc updates for v5.18 2022-03-30 10:50:48 -07:00
reset
rpmsg
rtc RTC for 5.18 2022-04-01 09:37:18 -07:00
s390 s390: cleanup timer API use 2022-03-27 22:18:39 +02:00
sbus
scsi xen: branch for v5.18-rc1 2022-03-28 14:32:39 -07:00
sh
siox
slimbus
soc Networking changes for 5.18. 2022-03-24 13:13:26 -07:00
soundwire Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
spi Core MTD changes: 2022-03-25 13:35:34 -07:00
spmi
ssb
staging Staging driver update for 5.18-rc1 2022-03-28 12:50:50 -07:00
target SCSI misc on 20220324 2022-03-24 19:37:53 -07:00
tc
tee ARM driver updates for 5.18 2022-03-23 18:23:13 -07:00
thermal Merge branch 'thermal-hfi' 2022-03-18 19:00:26 +01:00
thunderbolt Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00
tty TTY/Serial driver changes for 5.18-rc1 2022-03-28 13:00:51 -07:00
uio
usb xen: branch for v5.18-rc1 2022-03-28 14:32:39 -07:00
vdpa virtio: features, fixes 2022-03-31 13:57:15 -07:00
vfio
vhost virtio: features, fixes 2022-03-31 13:57:15 -07:00
video fbdev: Fix unregistering of framebuffers without device 2022-04-06 21:12:28 +02:00
virt Random number generator fixes for Linux 5.18-rc1. 2022-03-31 14:51:34 -07:00
virtio virtio: features, fixes 2022-03-31 13:57:15 -07:00
visorbus
vlynq
vme
w1 w1: w1_therm: Add support for Maxim MAX31850 thermoelement IF. 2022-03-18 14:07:09 +01:00
watchdog linux-watchdog 5.18-rc1 tag 2022-03-31 14:14:03 -07:00
xen xen: don't hang when resuming PCI device 2022-03-25 14:22:15 -05:00
zorro
Kconfig
Makefile