[Bug 200531] amdgpu: *ERROR* REG_WAIT timeout when a display is put to sleep

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=200531

Benjamin Berg (benjamin at sipsolutions.net) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |benjamin at sipsolutions.net

--- Comment #10 from Benjamin Berg (benjamin at sipsolutions.net) ---
Created attachment 278451
  --> https://bugzilla.kernel.org/attachment.cgi?id=278451&action=edit
Similar hang with Raven Ridge

Seeing a similar REG_WAIT timeout on a HP Elitebook. Attached both dmesg and
lspci from the machine, here the except from the traceback. Reproduced simply
by locking the screen in GNOME (causing the display to be suspended).

[ 6774.480794] [drm:generic_reg_wait [amdgpu]] *ERROR* REG_WAIT timeout 1us *
10 tries - optc1_lock line:628
[ 6774.480879] WARNING: CPU: 1 PID: 1831 at
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_helper.c:254
generic_reg_wait+0xe7/0x160 [amdgpu]
[ 6774.480880] Modules linked in: fuse rfcomm ccm nf_conntrack_netbios_ns
nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6
xt_conntrack ebtable_nat devlink ebtable_broute bridge stp llc ip6table_nat
nf_nat_ipv6 ip6table_mangle ip6table_raw ip6table_security iptable_nat
nf_nat_ipv4 nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack
nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ip_set nfnetlink ebtable_filter
ebtables ip6table_filter ip6_tables cmac bnep sunrpc vfat fat arc4 hp_wmi
sparse_keymap wmi_bmof iwlmvm edac_mce_amd kvm_amd ccp kvm mac80211
snd_hda_codec_conexant snd_hda_codec_generic irqbypass snd_hda_codec_hdmi
crct10dif_pclmul crc32_pclmul snd_hda_intel ghash_clmulni_intel uvcvideo
snd_hda_codec btusb btrtl videobuf2_vmalloc btbcm btintel videobuf2_memops
snd_hda_core
[ 6774.480957]  videobuf2_v4l2 bluetooth snd_hwdep snd_seq snd_seq_device
iwlwifi videobuf2_common snd_pcm videodev media joydev ecdh_generic snd_timer
cfg80211 snd sp5100_tco i2c_piix4 k10temp soundcore rfkill ucsi_acpi typec_ucsi
ipmi_devintf ipmi_msghandler typec wmi pcc_cpufreq video hp_wireless
pinctrl_amd acpi_cpufreq amdkfd amd_iommu_v2 amdgpu chash i2c_algo_bit
gpu_sched drm_kms_helper ttm crc32c_intel serio_raw drm nvme nvme_core r8169
libphy i2c_hid
[ 6774.481011] CPU: 1 PID: 1831 Comm: gnome-shell Tainted: G        W        
4.19.0-0.rc2.git3.1.fc30.x86_64 #1
[ 6774.481012] Hardware name: HP HP EliteBook 745 G5/83D5, BIOS Q81 Ver.
01.00.03 04/30/2018
[ 6774.481054] RIP: 0010:generic_reg_wait+0xe7/0x160 [amdgpu]
[ 6774.481057] Code: 44 24 58 8b 54 24 48 89 de 44 89 4c 24 08 48 8b 4c 24 50
48 c7 c7 60 9a 80 c0 e8 24 1f da ff 83 7d 18 01 44 8b 4c 24 08 74 02 <0f> 0b 48
83 c4 10 44 89 c8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 41 0f
[ 6774.481058] RSP: 0018:ffffbfbe49a43910 EFLAGS: 00010297
[ 6774.481061] RAX: 0000000000000000 RBX: 0000000000000001 RCX:
0000000000000000
[ 6774.481062] RDX: 0000000000000000 RSI: ffff9d49de3d6be8 RDI:
ffff9d49de3d6be8
[ 6774.481064] RBP: ffff9d49ceebcc80 R08: 0000008b7ecdffe6 R09:
0000000000000001
[ 6774.481065] R10: 0000000000000000 R11: 0000000000000000 R12:
000000000000000b
[ 6774.481067] R13: 000000000000504d R14: 0000000000000100 R15:
0000000000000001
[ 6774.481069] FS:  00007f20a0d01d00(0000) GS:ffff9d49de200000(0000)
knlGS:0000000000000000
[ 6774.481070] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6774.481072] CR2: 0000262ac5892e30 CR3: 00000003cec9a000 CR4:
00000000003406e0
[ 6774.481073] Call Trace:
[ 6774.481124]  optc1_lock+0xa0/0xb0 [amdgpu]
[ 6774.481172]  dcn10_pipe_control_lock.part.27+0x4a/0x70 [amdgpu]
[ 6774.481218]  dcn10_apply_ctx_for_surface+0xc5/0x510 [amdgpu]
[ 6774.481264]  dc_commit_state+0x249/0x520 [amdgpu]
[ 6774.481305]  ? set_freesync_on_streams.part.6+0x4d/0x250 [amdgpu]
[ 6774.481348]  ? mod_freesync_set_user_enable+0x11f/0x150 [amdgpu]
[ 6774.481396]  amdgpu_dm_atomic_commit_tail+0x380/0xd90 [amdgpu]
[ 6774.481403]  ? lockdep_hardirqs_on+0xed/0x180
[ 6774.481407]  ? _raw_spin_unlock_irq+0x29/0x40
[ 6774.481410]  ? wait_for_completion_timeout+0x73/0x1a0
[ 6774.481423]  commit_tail+0x3d/0x70 [drm_kms_helper]
[ 6774.481430]  drm_atomic_helper_commit+0xdf/0x150 [drm_kms_helper]
[ 6774.481445]  drm_atomic_connector_commit_dpms+0xdb/0x100 [drm]
[ 6774.481458]  set_property_atomic+0xb9/0x120 [drm]
[ 6774.481478]  drm_mode_obj_set_property_ioctl+0x103/0x1c0 [drm]
[ 6774.481491]  ? drm_mode_obj_find_prop_id+0x40/0x40 [drm]
[ 6774.481500]  drm_ioctl_kernel+0xa5/0xf0 [drm]
[ 6774.481513]  drm_ioctl+0x1fc/0x390 [drm]
[ 6774.481526]  ? drm_mode_obj_find_prop_id+0x40/0x40 [drm]
[ 6774.481531]  ? __pm_runtime_resume+0x54/0x90
[ 6774.481535]  ? lockdep_hardirqs_on+0xed/0x180
[ 6774.481570]  amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
[ 6774.481576]  do_vfs_ioctl+0xa5/0x6e0
[ 6774.481583]  ksys_ioctl+0x60/0x90
[ 6774.481587]  __x64_sys_ioctl+0x16/0x20
[ 6774.481591]  do_syscall_64+0x60/0x1f0
[ 6774.481594]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[...]

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