diff options
| author | Stanimir Varbanov <stanimir.varbanov@linaro.org> | 2020-11-01 15:35:52 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-11-16 21:06:10 +0300 |
| commit | 9215f6bb4705ffe205885411394732bfc439dee0 (patch) | |
| tree | 8682a25eee72c36d7dc92d0fd258f37ed4b2234c /drivers/media | |
| parent | a7a20f721e812a52a62a00de20dcd0779fbb587f (diff) | |
| download | linux-9215f6bb4705ffe205885411394732bfc439dee0.tar.xz | |
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: 9a538b83612c ('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>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/qcom/venus/pm_helpers.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c index 57877eacecf0..a9538c2cc3c9 100644 --- a/drivers/media/platform/qcom/venus/pm_helpers.c +++ b/drivers/media/platform/qcom/venus/pm_helpers.c @@ -794,7 +794,7 @@ skip_pmdomains: return 0; opp_dl_add_err: - dev_pm_domain_detach(core->opp_pmdomain, true); + dev_pm_opp_detach_genpd(core->opp_table); opp_attach_err: if (core->pd_dl_venus) { device_link_del(core->pd_dl_venus); @@ -832,7 +832,7 @@ skip_pmdomains: if (core->opp_dl_venus) device_link_del(core->opp_dl_venus); - dev_pm_domain_detach(core->opp_pmdomain, true); + dev_pm_opp_detach_genpd(core->opp_table); } static int core_get_v4(struct device *dev) |