linux_dsm_epyc7002/drivers
Stephen Boyd 710a040a4d drm/msm/dp: Sleep properly in dp_hpd_handler kthread
We shouldn't be waiting for an event here with a timeout of 100ms when
we're not in the 'timeout' arm of the if condition. Instead we should be
sleeping in the interruptible state (S) until something happens and we
need to wakeup. Right now this kthread is running almost all the time
because it sleeps for 100ms, wakes up, sees there's nothing to do, and
then starts the process all over again. Looking at top it shows up in
the D state (uninterruptible) because it uses wait_event_timeout(). FIx
this up.

Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Kuogee Hsieh <khsieh@codeaurora.org>
Reported-by: Douglas Anderson <dianders@chromium.org>
Fixes: 8ede2ecc3e ("drm/msm/dp: Add DP compliance tests on Snapdragon Chipsets")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2020-09-20 10:12:51 -07:00
..
accessibility
acpi More ACPI updates for 5.9-rc1 2020-08-15 08:18:22 -07:00
amba
android
ata
atm
auxdisplay
base
bcma
block block-5.9-2020-08-14 2020-08-15 20:36:42 -07:00
bluetooth
bus
cdrom
char
clk More ACPI updates for 5.9-rc1 2020-08-15 08:18:22 -07:00
clocksource - Core Frameworks 2020-08-15 08:09:38 -07:00
connector
counter
cpufreq
cpuidle
crypto
dax
dca
devfreq
dio
dma
dma-buf
edac Fixes for ie31200 driver that missed the first pull 2020-08-15 08:25:41 -07:00
eisa
extcon
firewire
firmware uaccess: add force_uaccess_{begin,end} helpers 2020-08-12 10:57:59 -07:00
fpga
fsi
gnss
gpio
gpu drm/msm/dp: Sleep properly in dp_hpd_handler kthread 2020-09-20 10:12:51 -07:00
greybus
hid
hsi
hv hyperv-fixes for 5.9-rc 2020-08-14 13:31:25 -07:00
hwmon pwm: Changes for v5.9-rc1 2020-08-14 16:00:09 -07:00
hwspinlock
hwtracing
i2c More ACPI updates for 5.9-rc1 2020-08-15 08:18:22 -07:00
i3c
ide
idle
iio
infiniband mm/gup: remove task_struct pointer for all gup code 2020-08-12 10:58:04 -07:00
input Cleanup, SECCOMP_FILTER support, message printing fixes, and other 2020-08-15 18:50:32 -07:00
interconnect
iommu Merge branch 'akpm' (patches from Andrew) 2020-08-12 11:24:12 -07:00
ipack
irqchip
isdn
leds
lightnvm
macintosh
mailbox iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
mcb
md block-5.9-2020-08-14 2020-08-15 20:36:42 -07:00
media
memory
memstick
message
mfd - Core Frameworks 2020-08-15 08:09:38 -07:00
misc
mmc
most
mtd
mux
net rtl818x: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
nfc
ntb ntb: intel: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
nubus
nvdimm mm: add thp_size 2020-08-14 19:56:56 -07:00
nvme
nvmem
of
opp
oprofile
parisc Merge branch 'parisc-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2020-08-12 12:41:15 -07:00
parport
pci
pcmcia
perf
phy
pinctrl
platform linux-watchdog 5.9-rc1 tag 2020-08-12 12:13:44 -07:00
pnp
power
powercap
pps
ps3
ptp
pwm pwm: Changes for v5.9-rc1 2020-08-14 16:00:09 -07:00
rapidio rapidio/rio_mport_cdev: use array_size() helper in copy_{from,to}_user() 2020-08-12 10:58:01 -07:00
ras
regulator
remoteproc
reset
rpmsg
rtc RTC for 5.9 2020-08-12 17:17:00 -07:00
s390
sbus
scsi SCSI misc on 20200814 2020-08-14 16:01:59 -07:00
sfi
sh iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
siox
slimbus
soc
soundwire
spi
spmi
ssb
staging
target SCSI misc on 20200814 2020-08-14 16:01:59 -07:00
tc
tee
thermal - Core Frameworks 2020-08-15 08:09:38 -07:00
thunderbolt
tty
uio
usb
vdpa
vfio VFIO updates for v5.9-rc1 2020-08-12 12:09:36 -07:00
vhost
video pwm: Changes for v5.9-rc1 2020-08-14 16:00:09 -07:00
virt
virtio virtio: pci: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
visorbus
vlynq
vme
w1
watchdog linux-watchdog 5.9-rc1 tag 2020-08-12 12:13:44 -07:00
xen xen: branch for v5.9-rc1b 2020-08-14 13:34:37 -07:00
zorro
Kconfig
Makefile