linux_dsm_epyc7002/drivers
Stanimir Varbanov 9215f6bb47 media: venus: pm_helpers: Fix kernel module reload
After initial kernel module load during kernel boot and removing
the module and try to load it again an Unable to handle kernel
paging request is observed:

Unable to handle kernel paging request at virtual address ffffa44f7416eae0
 Mem abort info:
   ESR = 0x96000047
   EC = 0x25: DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
 Data abort info:
   ISV = 0, ISS = 0x00000047
   CM = 0, WnR = 1
 swapper pgtable: 4k pages, 48-bit VAs, pgdp=000000008147c000
 [ffffa44f7416eae0] pgd=000000017df9f003, p4d=000000017df9f003,
 pud=000000017df9e003, pmd=000000017df9b003, pte=0000000000000000
 Internal error: Oops: 96000047 [#1] PREEMPT SMP
 Modules linked in: venus_core(+) snd_soc_wsa881x regmap_sdw af_alg
  snd_soc_wcd934x soundwire_qcom gpio_wcd934x q6asm_dai q6routing
  q6adm q6afe_dai snd_soc_hdmi_codec q6afe q6asm q6dsp_common q6cor
  display_connector rmtfs_mem drm ip_tables x_tables ipv6
  [last unloaded: venus_core]
 CPU: 6 PID: 889 Comm: modprobe Tainted: G        W      5.10.0-rc1+ #8
 Hardware name: Thundercomm Dragonboard 845c (DT)
 pstate: 80400085 (Nzcv daIf +PAN -UAO -TCO BTYPE=--)
 pc : queued_spin_lock_slowpath+0x1dc/0x3c8
 lr : do_raw_spin_lock+0xc0/0x118
 sp : ffff8000142cb7b0
 x29: ffff8000142cb7b0 x28: 0000000000000013
 x27: ffffa44f72de5690 x26: 0000000000000003
 x25: ffff17c2d00f8080 x24: ffff17c2c0d78010
 x23: ffff17c2c0d4f700 x22: ffff17c2d00f8080
 x21: 0000000000000000 x20: ffffa44f74148000
 x19: ffff17c2c0d4f8f8 x18: 0000000000000000
 x17: 0000000000000000 x16: ffffa44f7342f158
 x15: 0000000000000040 x14: ffffa44f746e8320
 x13: 0000000000000228 x12: 0000000000000020
 x11: 0000000000000000 x10: 00000000001c0000
 x9 : 0000000000000000 x8 : ffff17c33d746ac0
 x7 : ffff17c2c109b000 x6 : ffffa44f7416eac0
 x5 : ffff17c33d746ac0 x4 : 0000000000000000
 x3 : ffff17c2c0d4f8f8 x2 : ffffa44f7416eae0
 x1 : ffffa44f7416eae0 x0 : ffff17c33d746ac8
 Call trace:
  queued_spin_lock_slowpath+0x1dc/0x3c8
  do_raw_spin_lock+0xc0/0x118
  _raw_spin_lock_irqsave+0x80/0x14c
  __pm_runtime_resume+0x38/0xb8
  device_link_add+0x3b8/0x5d0
  core_get_v4+0x268/0x2d8 [venus_core]
  venus_probe+0x108/0x458 [venus_core]
  platform_drv_probe+0x54/0xa8
  really_probe+0xe4/0x3b0
  driver_probe_device+0x58/0xb8
  device_driver_attach+0x74/0x80
  __driver_attach+0x58/0xe8
  bus_for_each_dev+0x70/0xc0
  driver_attach+0x24/0x30
  bus_add_driver+0x150/0x1f8
  driver_register+0x64/0x120
  __platform_driver_register+0x48/0x58
  qcom_venus_driver_init+0x20/0x1000 [venus_core]
  do_one_initcall+0x84/0x458
  do_init_module+0x58/0x208
  load_module+0x1ec0/0x26a8
  __do_sys_finit_module+0xb8/0xf8
  __arm64_sys_finit_module+0x20/0x30
  el0_svc_common.constprop.0+0x7c/0x1c0
  do_el0_svc+0x24/0x90
  el0_sync_handler+0x180/0x188
  el0_sync+0x174/0x180
 Code: 91002100 8b0200c2 f861d884 aa0203e1 (f8246828)
 ---[ end trace f1f687c15fd6b2ca ]---
 note: modprobe[889] exited with preempt_count 1

After revisit the OPP part of the code I found that OPP pmdomain
is detached with direct call to dev_pm_domain_detach instead of
OPP wraper for detaching pmdomains with OPP table. Correct this
by calling the OPP dev_pm_opp_detach_genpd.

Fixes: 9a538b8361 ('media: venus: core: Add support for opp tables/perf voting')
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-16 19:06:10 +01:00
..
accessibility
acpi Merge branches 'acpi-button' and 'acpi-dock' 2020-10-30 16:31:20 +01:00
amba
android task_work: cleanup notification modes 2020-10-17 15:05:30 -06:00
ata libata-5.10-2020-10-30 2020-10-30 14:51:01 -07:00
atm
auxdisplay
base device property: Don't clear secondary pointer for shared primary firmware node 2020-10-27 19:20:03 +01:00
bcma
block xsysace: use platform_get_resource() and platform_get_irq_optional() 2020-10-29 08:22:33 -06:00
bluetooth Bluetooth: btintel: Replace zero-length array with flexible-array member 2020-10-30 16:57:41 -05:00
bus ARM: SoC-related driver updates 2020-10-24 10:39:22 -07:00
cdrom
char random32: make prandom_u32() output unpredictable 2020-10-24 20:21:57 +02:00
clk treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
clocksource treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
connector
counter
cpufreq cpufreq: Introduce cpufreq_driver_test_flags() 2020-10-29 14:07:30 +01:00
cpuidle powerpc updates for 5.10 2020-10-16 12:21:15 -07:00
crypto s390 updates for the 5.10 merge window 2020-10-16 12:36:38 -07:00
dax fuse update for 5.10 2020-10-19 14:28:30 -07:00
dca
devfreq
dio
dma misc: mic: remove the MIC drivers 2020-10-28 19:12:03 +01:00
dma-buf dma-mapping updates for 5.10 2020-10-15 14:43:29 -07:00
edac EFI changes for v5.10: 2020-10-12 13:26:49 -07:00
eisa
extcon
firewire
firmware ARM SCMI fixes for v5.10 2020-10-26 12:40:02 +01:00
fpga
fsi
gnss
gpio - New Drivers 2020-10-14 15:56:58 -07:00
gpu - Fix max memory region size calculation (Matt) 2020-10-30 11:54:11 +10:00
greybus
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2020-10-23 16:16:31 -07:00
hsi
hv Merge branch 'akpm' (patches from Andrew) 2020-10-16 11:31:55 -07:00
hwmon ARM: SoC platform updates 2020-10-24 10:33:08 -07:00
hwspinlock
hwtracing coresight: cti: Initialize dynamic sysfs attributes 2020-10-29 20:10:25 +01:00
i2c i2c: core: Restore acpi_walk_dep_device_list() getting called after registering the ACPI i2c devs 2020-10-25 13:33:54 +01:00
i3c * Fix DAA for the pre-reserved address case 2020-10-17 11:01:01 -07:00
ide block-5.10-2020-10-12 2020-10-13 12:12:44 -07:00
idle intel_idle: Fix max_cstate for processor models without C-state tables 2020-10-27 19:03:53 +01:00
iio chrome platform changes for 5.10 2020-10-23 10:54:13 -07:00
infiniband RDMA/qedr: Fix memory leak in iWARP CM 2020-10-28 09:45:25 -03:00
input Merge branch 'parisc-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2020-10-25 10:59:34 -07:00
interconnect interconnect: qcom: use icc_sync state for sm8[12]50 2020-10-27 16:01:22 +02:00
iommu IOMMU Fix for Linux v5.10: 2020-10-20 09:35:06 -07:00
ipack
irqchip treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
isdn
leds leds: pwm: Remove platform_data support 2020-10-07 12:02:58 +02:00
lightnvm lightnvm: fix out-of-bounds write to array devices->info[] 2020-10-16 09:28:45 -06:00
macintosh powerpc updates for 5.10 2020-10-16 12:21:15 -07:00
mailbox ARM: SoC-related driver updates 2020-10-24 10:39:22 -07:00
mcb
md - Improve DM core's bio splitting to use blk_max_size_offset(). Also 2020-10-14 15:05:38 -07:00
media media: venus: pm_helpers: Fix kernel module reload 2020-11-16 19:06:10 +01:00
memory ARM: SoC-related driver updates 2020-10-24 10:39:22 -07:00
memstick
message scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove() 2020-10-26 16:57:18 -04:00
mfd - New Drivers 2020-10-14 15:56:58 -07:00
misc Char/Misc fixes/removals for 5.10-rc2 2020-11-01 10:05:16 -08:00
mmc MMC host: 2020-10-30 11:04:11 -07:00
most
mtd This pull request contains fixes for UBI and UBIFS 2020-10-18 09:56:50 -07:00
mux
net flexible-array member conversion patches for 5.10-rc2 2020-10-31 14:31:28 -07:00
nfc nfc: remove unneeded break 2020-10-20 10:36:41 -07:00
ntb Bug fixes for v5.10 2020-10-25 11:12:31 -07:00
nubus
nvdimm mm/memremap_pages: support multiple ranges per invocation 2020-10-13 18:38:28 -07:00
nvme block-5.10-2020-10-30 2020-10-30 15:02:49 -07:00
nvmem
of dma-mapping: fix 32-bit overflow with CONFIG_ARM_LPAE=n 2020-10-29 16:59:34 +01:00
opp Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm 2020-10-06 12:26:45 +02:00
oprofile
parisc dma-mapping: split <linux/dma-mapping.h> 2020-10-06 07:07:03 +02:00
parport
pci VFIO updates for v5.10-rc1 2020-10-22 13:00:44 -07:00
pcmcia
perf
phy pci-v5.10-changes 2020-10-22 12:41:00 -07:00
pinctrl Pin control bulk changes for the v5.10 kernel cycle 2020-10-14 15:25:04 -07:00
platform Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2020-10-23 16:16:31 -07:00
pnp PNP: fix kernel-doc markups 2020-10-27 19:23:04 +01:00
power ARM: SoC platform updates 2020-10-24 10:33:08 -07:00
powercap powercap: Fix typo in Kconfig "Plance" -> "Plane" 2020-10-19 17:40:53 +02:00
pps
ps3
ptp
pwm ARM: SoC platform updates 2020-10-24 10:33:08 -07:00
rapidio rapidio: fix the missed put_device() for rio_mport_add_riodev 2020-10-16 11:11:22 -07:00
ras
regulator Merge remote-tracking branch 'regulator/for-5.10' into regulator-next 2020-10-05 16:54:56 +01:00
remoteproc remoteproc updates for v5.10 2020-10-22 12:56:33 -07:00
reset ARM: SoC-related driver updates 2020-10-24 10:39:22 -07:00
rpmsg rpmsg updates for 5.10 2020-10-22 12:58:21 -07:00
rtc RTC for 5.10 2020-10-21 11:22:08 -07:00
s390 s390/ism: fix incorrect system EID 2020-10-26 16:29:14 -07:00
sbus
scsi SCSI fixes on 20201030 2020-10-31 12:21:04 -07:00
sfi
sh
siox
slimbus
soc soc: ti: ti_sci_pm_domains: check for proper args count in xlate 2020-10-29 22:13:38 +01:00
soundwire
spi ARM: SoC platform updates 2020-10-24 10:33:08 -07:00
spmi
ssb
staging media: cedrus: h264: Fix check for presence of scaling matrix 2020-11-05 14:33:02 +01:00
target scsi: target: tcmu: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
tc
tee Reenable kernel login method for kernel TEE client API 2020-10-26 10:55:56 +01:00
thermal treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
thunderbolt
tty vt_ioctl: fix GIO_UNIMAP regression 2020-10-28 13:41:17 +01:00
uio
usb 4 bug fixes for Cadence 3 driver. 2020-10-30 11:46:49 +01:00
vdpa vhost,vdpa: fixes 2020-10-31 14:41:48 -07:00
vfio VFIO updates for v5.10-rc1 2020-10-22 13:00:44 -07:00
vhost vdpa: handle irq bypass register failure case 2020-10-30 04:02:53 -04:00
video A couple of x86 fixes which missed rc1 due to my stupidity: 2020-10-27 14:39:29 -07:00
virt virt: vbox: simplify the return expression of vbg_input_open() 2020-10-02 11:36:13 +02:00
virtio vhost,vdpa,virtio: cleanups, fixes 2020-10-23 11:00:57 -07:00
visorbus
vlynq
vme
w1 w1: w1_therm: make w1_poll_completion static 2020-10-05 14:49:24 +02:00
watchdog ARM: SoC platform updates 2020-10-24 10:33:08 -07:00
xen xen: branch for v5.10-rc1c 2020-10-25 10:55:35 -07:00
zorro
Kconfig
Makefile