Re: [PATCH] clk: qcom: rcg2: Cache rate changes for parked RCGs

From: Steev Klimaszewski
Date: Fri Dec 03 2021 - 19:39:56 EST



On 12/2/21 9:56 PM, Bjorn Andersson wrote:
As GDSCs are turned on and off some associated clocks are momentarily
enabled for house keeping purposes. Failure to enable these clocks seems
to have been silently ignored in the past, but starting in SM8350 this
failure will prevent the GDSC to turn on.

At least on SM8350 this operation will enable the RCG per the
configuration in CFG_REG. This means that the current model where the
current configuration is written back to CF_REG immediately after
parking the RCG doesn't work.

Instead, keep track of the currently requested rate of the clock and
upon enabling the clock reapply the configuration per the saved rate.

Fixes: 7ef6f11887bd ("clk: qcom: Configure the RCGs to a safe source as needed")
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
---
drivers/clk/qcom/clk-rcg.h | 2 ++
drivers/clk/qcom/clk-rcg2.c | 32 +++++++++++++++++---------------
2 files changed, 19 insertions(+), 15 deletions(-)

<snip patch>

With this applied, I'm getting

[   28.404134] ------------[ cut here ]------------
[   28.404448] video_cc_venus_clk_src: rcg didn't update its configuration.
[   28.405500] WARNING: CPU: 7 PID: 372 at drivers/clk/qcom/clk-rcg2.c:122 update_config+0xd0/0xe0
[   28.405999] Modules linked in: snd_timer(+) snd hci_uart(+) soundcore btqca btrtl venus_core(+) btbcm v4l2_mem2mem videobuf2_v4l2 btintel bluetooth videobuf2_common videodev mc ecdh_generic hid_multitouch(+) ecc ath10k_snoc ath10k_core qcom_rng ath mac80211 qcom_q6v5_mss libarc4 cfg80211 rfkill sg qcom_wdt qcom_q6v5_pas evdev slim_qcom_ngd_ctrl qrtr qcom_pil_info pdr_interface qcom_q6v5 slimbus qcom_sysmon rmtfs_mem tcp_bbr sch_fq fuse configfs ip_tables x_tables autofs4 ext4 mbcache jbd2 panel_simple rtc_pm8xxx msm llcc_qcom ocmem ti_sn65dsi86 drm_dp_aux_bus gpu_sched drm_kms_helper drm camcc_sdm845 ipa qcom_common qmi_helpers mdt_loader gpio_keys pwm_bl
[   28.407149] CPU: 7 PID: 372 Comm: systemd-udevd Not tainted 5.15.6 #45
[   28.407175] Hardware name: LENOVO 81JL/LNVNB161216, BIOS 9UCN33WW(V2.06) 06/ 4/2019
[   28.407212] pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   28.407243] pc : update_config+0xd0/0xe0
[   28.407261] lr : update_config+0xd0/0xe0
[   28.407265] sp : ffff800010833620
[   28.407268] x29: ffff800010833620 x28: ffffd0c345fa7000 x27: ffffd0c345fa7a80
[   28.407274] x26: ffff2ed90222e100 x25: 0000000005f5e100 x24: 0000000000000000
[   28.407288] x23: ffffd0c2fdc80cd0 x22: ffff2ed9092480c8 x21: ffffd0c345852bb0
[   28.407293] x20: ffffd0c34615a9d0 x19: 0000000000000000 x18: ffffd0c346209900
[   28.407305] x17: ffffd0c346209918 x16: ffffd0c344f7c4d0 x15: 00000000000500a8
[   28.407309] x14: 0000000000000000 x13: 2e6e6f6974617275 x12: 6769666e6f632073
[   28.407314] x11: ffffffffffff56a0 x10: ffffffffffff5658 x9 : ffffd0c34499b66c
[   28.407329] x8 : 00000000ffffefff x7 : ffffd0c34602b0a8 x6 : 0000000000017ce0
[   28.407333] x5 : ffff2eda737e5a48 x4 : ffff800010833460 x3 : 0000000000000001
[   28.407338] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff2ed90aa6e740
[   28.407378] Call trace:
[   28.407425]  update_config+0xd0/0xe0
[   28.407429]  clk_rcg2_shared_enable+0x74/0xb4
[   28.407471]  clk_core_enable+0x78/0x220
[   28.407536]  clk_core_enable+0x58/0x220
[   28.407540]  clk_enable+0x38/0x60
[   28.407544]  core_clks_enable+0xd8/0x160 [venus_core]
[   28.408358]  core_power_v4+0xe0/0x150 [venus_core]
[   28.408419]  venus_runtime_resume+0x70/0x90 [venus_core]
[   28.408451]  pm_generic_runtime_resume+0x38/0x50
[   28.408538]  __rpm_callback+0x50/0x1b0
[   28.408570]  rpm_callback+0x74/0x80
[   28.408588]  rpm_resume+0x618/0x8b0
[   28.408595]  __pm_runtime_resume+0x4c/0xa4
[   28.408599]  venus_probe+0x2f8/0x4d0 [venus_core]
[   28.408616]  platform_probe+0x74/0xf0
[   28.408693]  really_probe+0xc4/0x470
[   28.408722]  __driver_probe_device+0x11c/0x190
[   28.408729]  driver_probe_device+0x48/0x110
[   28.408734]  __driver_attach+0xd8/0x1f0
[   28.408738]  bus_for_each_dev+0x7c/0xe0
[   28.408814]  driver_attach+0x30/0x40
[   28.408816]  bus_add_driver+0x154/0x250
[   28.408820]  driver_register+0x84/0x140
[   28.408823]  __platform_driver_register+0x34/0x40
[   28.408841]  qcom_venus_driver_init+0x30/0x1000 [venus_core]
[   28.408857]  do_one_initcall+0x50/0x240
[   28.408955]  do_init_module+0x60/0x270
[   28.409106]  load_module+0x2050/0x2460
[   28.409109]  __do_sys_finit_module+0xa8/0x114
[   28.409130]  __arm64_sys_finit_module+0x2c/0x3c
[   28.409139]  invoke_syscall+0x50/0x120
[   28.409272]  el0_svc_common.constprop.0+0xdc/0x100
[   28.409295]  do_el0_svc+0x34/0xa0
[   28.409307]  el0_svc+0x28/0x80
[   28.409426]  el0t_64_sync_handler+0xa4/0x130
[   28.409430]  el0t_64_sync+0x1a0/0x1a4
[   28.409453] ---[ end trace f08b1f47ee3d43ed ]---


And a blank screen - it seems similar to the "blue" screen that I see every few reboots, however this time, closing the lid and letting it suspend and then waking back up by opening it up - during the suspend, we get:

[  141.357919] ldo1: Underflow of regulator enable count
[  141.357940] Failed to disable vdds: -EINVAL
[  141.606278] ------------[ cut here ]------------
[  141.606368] disp_cc_mdss_ahb_clk already disabled
[  141.607229] WARNING: CPU: 3 PID: 1277 at drivers/clk/clk.c:952 clk_core_disable+0x1dc/0x1f4
[  141.607470] Modules linked in: rfcomm xt_conntrack aes_ce_ccm nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo nft_counter snd_seq_dummy snd_hrtimer snd_seq snd_seq_device xt_addrtype nft_compat nf_tables libcrc32c nfnetlink br_netfilter bridge stp llc overlay q6asm_dai snd_soc_wsa881x regmap_sdw q6routing q6afe_dai soundwire_qcom snd_soc_wcd934x gpio_wcd934x q6adm snd_soc_wcd_mbhc cpufreq_ondemand cpufreq_conservative q6asm q6dsp_common cpufreq_powersave q6afe algif_hash algif_skcipher q6core af_alg bnep cpufreq_userspace lz4 lz4_compress wcd934x regmap_slimbus zram zsmalloc apr qrtr_smd fastrpc binfmt_misc snd_soc_sdm845 nls_ascii uvcvideo nls_cp437 videobuf2_vmalloc snd_soc_rt5663 vfat videobuf2_memops fat snd_soc_qcom_common snd_soc_rl6231 aes_ce_blk soundwire_bus crypto_simd cryptd aes_ce_cipher pm8941_pwrkey snd_soc_core snd_compress crct10dif_ce ghash_ce gf128mul snd_pcm_dmaengine sha2_ce sha256_arm64
[  141.608446]  qcom_spmi_adc5 snd_pcm sha1_ce qcom_vadc_common qcom_spmi_temp_alarm joydev industrialio snd_timer snd hci_uart soundcore btqca btrtl venus_core btbcm v4l2_mem2mem videobuf2_v4l2 btintel bluetooth videobuf2_common videodev mc ecdh_generic hid_multitouch ecc ath10k_snoc ath10k_core qcom_rng ath mac80211 qcom_q6v5_mss libarc4 cfg80211 rfkill sg qcom_wdt qcom_q6v5_pas evdev slim_qcom_ngd_ctrl qrtr qcom_pil_info pdr_interface qcom_q6v5 slimbus qcom_sysmon rmtfs_mem tcp_bbr sch_fq fuse configfs ip_tables x_tables autofs4 ext4 mbcache jbd2 panel_simple rtc_pm8xxx msm llcc_qcom ocmem ti_sn65dsi86 drm_dp_aux_bus gpu_sched drm_kms_helper drm camcc_sdm845 ipa qcom_common qmi_helpers mdt_loader gpio_keys pwm_bl
[  141.609150] CPU: 3 PID: 1277 Comm: systemd-sleep Tainted: G        W         5.15.6 #45
[  141.609184] Hardware name: LENOVO 81JL/LNVNB161216, BIOS 9UCN33WW(V2.06) 06/ 4/2019
[  141.609204] pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  141.609236] pc : clk_core_disable+0x1dc/0x1f4
[  141.609265] lr : clk_core_disable+0x1dc/0x1f4
[  141.609292] sp : ffff800017c63940
[  141.609303] x29: ffff800017c63940 x28: ffff2ed900fb8118 x27: ffffd0c3450bbe20
[  141.609348] x26: 0000000000000002 x25: 0000000000000000 x24: ffff2ed90bf23200
[  141.609388] x23: ffffd0c3461a1590 x22: 0000000000000001 x21: ffff2ed90c90dd00
[  141.609427] x20: ffff2ed909bccf00 x19: ffff2ed909bccf00 x18: 0000000000000000
[  141.609466] x17: 000000040044ffff x16: ffffd0c344f7c154 x15: 0000000000000000
[  141.609505] x14: ffff2ed900296740 x13: 0a64656c62617369 x12: 642079646165726c
[  141.609545] x11: 656820747563205b x10: 2d2d2d2d2d2d2d2d x9 : ffffd0c34499b66c
[  141.609584] x8 : 00000000ffffffff x7 : 656c626173696420 x6 : 00000000fffff633
[  141.609622] x5 : ffff2eda73771a48 x4 : ffff800017c63780 x3 : 0000000000000001
[  141.609659] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff2ed920b70000
[  141.609700] Call trace:
[  141.609714]  clk_core_disable+0x1dc/0x1f4
[  141.609745]  clk_disable+0x3c/0x5c
[  141.609773]  msm_dsi_runtime_suspend+0x68/0x90 [msm]
[  141.610617]  pm_generic_runtime_suspend+0x38/0x50
[  141.610696]  genpd_runtime_suspend+0xb4/0x314
[  141.610761]  pm_runtime_force_suspend+0x54/0x140
[  141.610794]  dpm_run_callback+0x60/0x180
[  141.610816]  __device_suspend+0x120/0x5a0
[  141.610839]  dpm_suspend+0x158/0x2c0
[  141.610863]  dpm_suspend_start+0xa8/0xb0
[  141.610886]  suspend_devices_and_enter+0x100/0x810
[  141.610960]  pm_suspend+0x38c/0x480
[  141.610982]  state_store+0x98/0x11c
[  141.611005]  kobj_attr_store+0x1c/0x30
[  141.611063]  sysfs_kf_write+0x50/0x60
[  141.611089]  kernfs_fop_write_iter+0x134/0x1c4
[  141.611140]  new_sync_write+0xf0/0x18c
[  141.611192]  vfs_write+0x210/0x2b0
[  141.611220]  ksys_write+0x74/0x100
[  141.611246]  __arm64_sys_write+0x28/0x3c
[  141.611275]  invoke_syscall+0x50/0x120
[  141.611339]  el0_svc_common.constprop.0+0x4c/0x100
[  141.611368]  do_el0_svc+0x34/0xa0
[  141.611393]  el0_svc+0x28/0x80
[  141.611431]  el0t_64_sync_handler+0xa4/0x130
[  141.611455]  el0t_64_sync+0x1a0/0x1a4
[  141.611483] ---[ end trace f08b1f47ee3d43ee ]---
[  141.611653] ------------[ cut here ]------------
[  141.611664] disp_cc_mdss_ahb_clk already unprepared
[  141.611831] WARNING: CPU: 3 PID: 1277 at drivers/clk/clk.c:810 clk_core_unprepare+0x1a0/0x1c0
[  141.611880] Modules linked in: rfcomm xt_conntrack aes_ce_ccm nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo nft_counter snd_seq_dummy snd_hrtimer snd_seq snd_seq_device xt_addrtype nft_compat nf_tables libcrc32c nfnetlink br_netfilter bridge stp llc overlay q6asm_dai snd_soc_wsa881x regmap_sdw q6routing q6afe_dai soundwire_qcom snd_soc_wcd934x gpio_wcd934x q6adm snd_soc_wcd_mbhc cpufreq_ondemand cpufreq_conservative q6asm q6dsp_common cpufreq_powersave q6afe algif_hash algif_skcipher q6core af_alg bnep cpufreq_userspace lz4 lz4_compress wcd934x regmap_slimbus zram zsmalloc apr qrtr_smd fastrpc binfmt_misc snd_soc_sdm845 nls_ascii uvcvideo nls_cp437 videobuf2_vmalloc snd_soc_rt5663 vfat videobuf2_memops fat snd_soc_qcom_common snd_soc_rl6231 aes_ce_blk soundwire_bus crypto_simd cryptd aes_ce_cipher pm8941_pwrkey snd_soc_core snd_compress crct10dif_ce ghash_ce gf128mul snd_pcm_dmaengine sha2_ce sha256_arm64
[  141.612553]  qcom_spmi_adc5 snd_pcm sha1_ce qcom_vadc_common qcom_spmi_temp_alarm joydev industrialio snd_timer snd hci_uart soundcore btqca btrtl venus_core btbcm v4l2_mem2mem videobuf2_v4l2 btintel bluetooth videobuf2_common videodev mc ecdh_generic hid_multitouch ecc ath10k_snoc ath10k_core qcom_rng ath mac80211 qcom_q6v5_mss libarc4 cfg80211 rfkill sg qcom_wdt qcom_q6v5_pas evdev slim_qcom_ngd_ctrl qrtr qcom_pil_info pdr_interface qcom_q6v5 slimbus qcom_sysmon rmtfs_mem tcp_bbr sch_fq fuse configfs ip_tables x_tables autofs4 ext4 mbcache jbd2 panel_simple rtc_pm8xxx msm llcc_qcom ocmem ti_sn65dsi86 drm_dp_aux_bus gpu_sched drm_kms_helper drm camcc_sdm845 ipa qcom_common qmi_helpers mdt_loader gpio_keys pwm_bl
[  141.613142] CPU: 3 PID: 1277 Comm: systemd-sleep Tainted: G        W         5.15.6 #45
[  141.613167] Hardware name: LENOVO 81JL/LNVNB161216, BIOS 9UCN33WW(V2.06) 06/ 4/2019
[  141.613181] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  141.613206] pc : clk_core_unprepare+0x1a0/0x1c0
[  141.613236] lr : clk_core_unprepare+0x1a0/0x1c0
[  141.613264] sp : ffff800017c63950
[  141.613275] x29: ffff800017c63950 x28: ffff2ed900fb8118 x27: ffffd0c3450bbe20
[  141.613318] x26: 0000000000000002 x25: 0000000000000000 x24: ffff2ed90bf23200
[  141.613358] x23: ffffd0c3461a1590 x22: 0000000000000001 x21: ffff2ed90c90dd00
[  141.613396] x20: ffff2ed900fa0c78 x19: ffff2ed909bccf00 x18: 0000000000000000
[  141.613436] x17: 000000040044ffff x16: ffffd0c344f7bdf0 x15: 0000000000000000
[  141.613475] x14: ffff2ed900296740 x13: 0a64657261706572 x12: 706e752079646165
[  141.613515] x11: 656820747563205b x10: 2d2d2d2d2d2d2d2d x9 : ffffd0c34499b66c
[  141.613554] x8 : 00000000ffffffff x7 : 61706572706e7520 x6 : 00000000fffff664
[  141.613592] x5 : ffff2eda73771a48 x4 : ffff800017c63790 x3 : 0000000000000001
[  141.613629] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff2ed920b70000
[  141.613667] Call trace:
[  141.613678]  clk_core_unprepare+0x1a0/0x1c0
[  141.613710]  clk_unprepare+0x38/0x50
[  141.613736]  msm_dsi_runtime_suspend+0x70/0x90 [msm]
[  141.614063]  pm_generic_runtime_suspend+0x38/0x50
[  141.614091]  genpd_runtime_suspend+0xb4/0x314
[  141.614121]  pm_runtime_force_suspend+0x54/0x140
[  141.614151]  dpm_run_callback+0x60/0x180
[  141.614173]  __device_suspend+0x120/0x5a0
[  141.614195]  dpm_suspend+0x158/0x2c0
[  141.614218]  dpm_suspend_start+0xa8/0xb0
[  141.614241]  suspend_devices_and_enter+0x100/0x810
[  141.614267]  pm_suspend+0x38c/0x480
[  141.614290]  state_store+0x98/0x11c
[  141.614311]  kobj_attr_store+0x1c/0x30
[  141.614340]  sysfs_kf_write+0x50/0x60
[  141.614360]  kernfs_fop_write_iter+0x134/0x1c4
[  141.614390]  new_sync_write+0xf0/0x18c
[  141.614418]  vfs_write+0x210/0x2b0
[  141.614443]  ksys_write+0x74/0x100
[  141.614469]  __arm64_sys_write+0x28/0x3c
[  141.614496]  invoke_syscall+0x50/0x120
[  141.614523]  el0_svc_common.constprop.0+0x4c/0x100
[  141.614551]  do_el0_svc+0x34/0xa0
[  141.614576]  el0_svc+0x28/0x80
[  141.614597]  el0t_64_sync_handler+0xa4/0x130
[  141.614621]  el0t_64_sync+0x1a0/0x1a4
[  141.614643] ---[ end trace f08b1f47ee3d43ef ]---


And then upon wake, we get

[  144.822647] OOM killer enabled.
[  144.822660] Restarting tasks ... done.
[  144.828624] PM: suspend exit
[  144.854302] [drm:dpu_encoder_frame_done_timeout:2127] [dpu error]enc31 frame done timeout
[  145.153281] rfkill: input handler disabled
[  145.679342] usb 3-1.3: new high-speed USB device number 4 using xhci-hcd
[  145.734319] [drm:dpu_encoder_phys_vid_wait_for_commit_done:513] [dpu error]vblank timeout
[  145.734336] [drm:dpu_kms_wait_for_commit_done:454] [dpu error]wait for commit done returned -110
[  145.792887] usb 3-1.3: New USB device found, idVendor=5986, idProduct=2115, bcdDevice=54.20
[  145.792909] usb 3-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  145.792915] usb 3-1.3: Product: Integrated Camera
[  145.792920] usb 3-1.3: Manufacturer: SunplusIT Inc
[  145.822516] [drm:dpu_encoder_helper_report_irq_timeout [msm]] *ERROR* irq timeout id=31, intf=1, pp=0, intr=0
[  145.870521] usb 3-1.3: can't set config #1, error -71
[  145.910326] [drm:dpu_encoder_helper_report_irq_timeout [msm]] *ERROR* irq timeout id=31, intf=1, pp=0, intr=0
[  145.910369] [drm:dpu_encoder_phys_vid_disable [msm]] *ERROR* wait disable failed: id:31 intf:1 ret:-110
[  145.932329] ldo1: Underflow of regulator enable count
[  145.932343] Failed to disable vdds: -EINVAL
[  145.936885] dsi_link_clk_enable_6g: Failed to enable dsi pixel clk
[  145.936901] msm_dsi_host_power_on: failed to enable link clocks. ret=-22
[  145.936906] dsi_mgr_bridge_pre_enable: power on host 0 failed, -22


And then a little later...

[  462.153015] ldo1: Underflow of regulator enable count
[  462.153049] Failed to disable vdds: -EINVAL
[  462.155657] Internal error: synchronous external abort: 96000010 [#1] SMP
[  462.155702] Modules linked in: rfcomm xt_conntrack aes_ce_ccm nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo nft_counter snd_seq_dummy snd_hrtimer snd_seq snd_seq_device xt_addrtype nft_compat nf_tables libcrc32c nfnetlink br_netfilter bridge stp llc overlay q6asm_dai snd_soc_wsa881x regmap_sdw q6routing q6afe_dai soundwire_qcom snd_soc_wcd934x gpio_wcd934x q6adm snd_soc_wcd_mbhc cpufreq_ondemand cpufreq_conservative q6asm q6dsp_common cpufreq_powersave q6afe algif_hash algif_skcipher q6core af_alg bnep cpufreq_userspace lz4 lz4_compress wcd934x regmap_slimbus zram zsmalloc apr qrtr_smd fastrpc binfmt_misc snd_soc_sdm845 nls_ascii uvcvideo nls_cp437 videobuf2_vmalloc snd_soc_rt5663 vfat videobuf2_memops fat snd_soc_qcom_common snd_soc_rl6231 aes_ce_blk soundwire_bus crypto_simd cryptd aes_ce_cipher pm8941_pwrkey snd_soc_core snd_compress crct10dif_ce ghash_ce gf128mul snd_pcm_dmaengine sha2_ce sha256_arm64
[  462.156645]  qcom_spmi_adc5 snd_pcm sha1_ce qcom_vadc_common qcom_spmi_temp_alarm joydev industrialio snd_timer snd hci_uart soundcore btqca btrtl venus_core btbcm v4l2_mem2mem videobuf2_v4l2 btintel bluetooth videobuf2_common videodev mc ecdh_generic hid_multitouch ecc ath10k_snoc ath10k_core qcom_rng ath mac80211 qcom_q6v5_mss libarc4 cfg80211 rfkill sg qcom_wdt qcom_q6v5_pas evdev slim_qcom_ngd_ctrl qrtr qcom_pil_info pdr_interface qcom_q6v5 slimbus qcom_sysmon rmtfs_mem tcp_bbr sch_fq fuse configfs ip_tables x_tables autofs4 ext4 mbcache jbd2 panel_simple rtc_pm8xxx msm llcc_qcom ocmem ti_sn65dsi86 drm_dp_aux_bus gpu_sched drm_kms_helper drm camcc_sdm845 ipa qcom_common qmi_helpers mdt_loader gpio_keys pwm_bl
[  462.157479] CPU: 1 PID: 961 Comm: gnome-shell Tainted: G W         5.15.6 #45
[  462.157517] Hardware name: LENOVO 81JL/LNVNB161216, BIOS 9UCN33WW(V2.06) 06/ 4/2019
[  462.157542] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  462.157579] pc : dpu_reg_read+0x20/0x30 [msm]
[  462.157870] lr : dpu_hw_intf_get_status+0x2c/0x90 [msm]
[  462.158158] sp : ffff800015f237e0
[  462.158177] x29: ffff800015f237e0 x28: ffffd0c2fd91cc90 x27: 00000000ffffffff
[  462.158234] x26: ffff2ed907c6c000 x25: 0000000000fe45a8 x24: 0000000000000000
[  462.158287] x23: ffff2ed90bda9880 x22: 0000000000000003 x21: 000000000000043b
[  462.158339] x20: ffff2ed901483180 x19: ffff800015f2383c x18: ffffffffffffffff
[  462.158393] x17: 000000040044ffff x16: ffffd0c3450b84f0 x15: 0000000000000000
[  462.158444] x14: 0000000000000000 x13: ffff5e172dc1d000 x12: 000000003474591d
[  462.158496] x11: 0000000000000000 x10: 0000000000000080 x9 : ffffd0c2fd8c3dbc
[  462.158548] x8 : ffff2ed9050fbb00 x7 : ffffd0c3460484c0 x6 : 0000000000000000
[  462.158598] x5 : 0000000000000000 x4 : 00000000ffffffff x3 : ffffd0c2fd8c3d90
[  462.158648] x2 : 000000000006a800 x1 : 000000000006a800 x0 : ffff800010f6a800
[  462.158700] Call trace:
[  462.158720]  dpu_reg_read+0x20/0x30 [msm]
[  462.159003]  dpu_encoder_phys_vid_get_frame_count+0x74/0xf0 [msm]
[  462.159288]  dpu_encoder_get_frame_count+0x38/0x50 [msm]
[  462.159544]  dpu_crtc_get_vblank_counter+0x5c/0x8c [msm]
[  462.159592]  __get_vblank_counter+0xec/0x140 [drm]
[  462.159709]  drm_update_vblank_count+0x70/0x390 [drm]
[  462.159740]  drm_vblank_disable_and_save+0x84/0x11c [drm]
[  462.159772]  drm_crtc_vblank_off+0x108/0x320 [drm]
[  462.159803]  dpu_crtc_disable+0x60/0x3d4 [msm]
[  462.159853]  disable_outputs+0x25c/0x320 [drm_kms_helper]
[  462.159893] drm_atomic_helper_commit_modeset_disables+0x28/0x54 [drm_kms_helper]
[  462.159910]  msm_atomic_commit_tail+0x1a0/0x780 [msm]
[  462.159959]  commit_tail+0xac/0x190 [drm_kms_helper]
[  462.159977]  drm_atomic_helper_commit+0x168/0x400 [drm_kms_helper]
[  462.159995]  drm_atomic_commit+0x58/0x70 [drm]
[  462.160032]  drm_mode_atomic_ioctl+0x864/0xb80 [drm]
[  462.160063]  drm_ioctl_kernel+0xd0/0x120 [drm]
[  462.160093]  drm_ioctl+0x248/0x470 [drm]
[  462.160124]  __arm64_sys_ioctl+0xb4/0xfc
[  462.160136]  invoke_syscall+0x50/0x120
[  462.160148]  el0_svc_common.constprop.0+0x4c/0x100
[  462.160156]  do_el0_svc+0x34/0xa0
[  462.160164]  el0_svc+0x28/0x80
[  462.160174]  el0t_64_sync_handler+0xa4/0x130
[  462.160179]  el0t_64_sync+0x1a0/0x1a4
[  462.160192] Code: d503233f f9400000 8b214041 8b010000 (b9400000)
[  462.160200] ---[ end trace f08b1f47ee3d43f0 ]---
[  462.195181] usb 3-1.3: USB disconnect, device number 5
[  483.266267] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[  483.266287] rcu:     1-...0: (7 ticks this GP) idle=bfb/1/0x4000000000000000 softirq=18411/18411 fqs=4691
[  483.266304]     (detected by 6, t=21002 jiffies, g=40289, q=8854)
[  483.266313] Task dump for CPU 1:
[  483.266319] task:gmain           state:R  running task stack:    0 pid: 1562 ppid:     1 flags:0x0000000e
[  483.266336] Call trace:
[  483.266341]  __switch_to+0x138/0x190
[  483.266361]  0x8b007afdbf2f3900
[  546.283350] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[  546.283375] rcu:     1-...0: (7 ticks this GP) idle=bfb/1/0x4000000000000000 softirq=18411/18411 fqs=18763
[  546.283387]     (detected by 0, t=84007 jiffies, g=40289, q=8931)
[  546.283395] Task dump for CPU 1:
[  546.283401] task:gmain           state:R  running task stack:    0 pid: 1562 ppid:     1 flags:0x0000000e
[  546.283412] Call trace:
[  546.283416]  __switch_to+0x138/0x190
[  546.283433]  0x8b007afdbf2f3900
[  609.319122] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[  609.319145] rcu:     1-...0: (7 ticks this GP) idle=bfb/1/0x4000000000000000 softirq=18411/18411 fqs=32816
[  609.319162]     (detected by 6, t=147012 jiffies, g=40289, q=8968)
[  609.319172] Task dump for CPU 1:
[  609.319177] task:gmain           state:R  running task stack:    0 pid: 1562 ppid:     1 flags:0x0000000e
[  609.319195] Call trace:
[  609.319200]  __switch_to+0x138/0x190
[  609.319222]  0x8b007afdbf2f3900