[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

Barry G (barry at grussling.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |barry at grussling.com

--- Comment #8 from Barry G (barry at grussling.com) ---
My Archlinux system just update to 4.18 and now I also can't resume a display. 
SSH yields the following in my dmesg:

[ 3317.637991] [drm:generic_reg_wait [amdgpu]] *ERROR* REG_WAIT timeout 10us *
6000 tries - dce_mi_allocate_dmif line:599                                      
[ 3317.638034] WARNING: CPU: 10 PID: 5473 at
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_helper.c:254
generic_reg_wait+0xe7/0x160 [amdgpu]
[ 3317.638034] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4
dns_resolver nfs lockd grace sunrpc fscache nls_iso8859_1 nls_cp437 vfat fat
wmi_bmof mxm_wmi edac_mce_amd pl2303 kvm usbserial irqbypass xpad ff_memless
snd_hda_codec_realtek uvcvideo joydev cdc_acm snd_hda_codec_hdmi
snd_hda_codec_generic videobuf2_vmalloc snd_usb_audio videobuf2_memops
videobuf2_v4l2 videobuf2_common input_leds snd_usbmidi_lib pcspkr led_class
videodev snd_hda_intel mousedev snd_rawmidi snd_hda_codec media snd_seq_device
ixgbe snd_hda_core snd_hwdep snd_pcm igb snd_timer snd sp5100_tco mdio k10temp
dca i2c_piix4 soundcore rtc_cmos wmi pinctrl_amd gpio_amdpt evdev mac_hid
pcc_cpufreq acpi_cpufreq sg crypto_user ip_tables x_tables ext4 crc32c_generic
crc16 mbcache jbd2 fscrypto algif_skcipher af_alg dm_crypt dm_mod
[ 3317.638052]  sd_mod uas usb_storage hid_generic usbhid hid crct10dif_pclmul
crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc aesni_intel aes_x86_64
crypto_simd xhci_pci ahci cryptd glue_helper libahci mpt3sas xhci_hcd
raid_class libata scsi_transport_sas ccp rng_core usbcore scsi_mod usb_common
amdgpu chash i2c_algo_bit gpu_sched drm_kms_helper syscopyarea sysfillrect
sysimgblt fb_sys_fops ttm drm agpgart
[ 3317.638064] CPU: 10 PID: 5473 Comm: Xorg Tainted: G        W        
4.18.5-arch1-1-ARCH #1
[ 3317.638064] Hardware name: Micro-Star International Co., Ltd. MS-7B09/X399
GAMING PRO CARBON AC (MS-7B09), BIOS 1.70 12/18/2017
[ 3317.638089] RIP: 0010:generic_reg_wait+0xe7/0x160 [amdgpu]
[ 3317.638089] Code: 44 24 58 8b 54 24 48 89 de 44 89 4c 24 08 48 8b 4c 24 50
48 c7 c7 18 ff 50 c0 e8 04 30 d5 ff 83 7d 20 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 
[ 3317.638102] RSP: 0018:ffffa5ad07b7b980 EFLAGS: 00010297
[ 3317.638103] RAX: 0000000000000000 RBX: 000000000000000a RCX:
0000000000000001
[ 3317.638104] RDX: 0000000000000000 RSI: ffffffff8c0811ce RDI:
00000000ffffffff
[ 3317.638104] RBP: ffff9063efd12e80 R08: ffffffff8b6ddf10 R09:
0000000000000000
[ 3317.638105] R10: 0000000000000004 R11: ffffffff8c804f2d R12:
0000000000001771
[ 3317.638105] R13: 00000000000035b1 R14: 0000000000000010 R15:
0000000000000001
[ 3317.638106] FS:  00007f58f677ee00(0000) GS:ffff9063fcc80000(0000)
knlGS:0000000000000000
[ 3317.638106] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3317.638107] CR2: 00007f994ae51000 CR3: 0000000fd3e1a000 CR4:
00000000003406e0
[ 3317.638107] Call Trace:
[ 3317.638135]  dce_mi_allocate_dmif+0xf6/0x220 [amdgpu]
[ 3317.638162]  dce110_apply_ctx_for_surface+0xf1/0x260 [amdgpu]
[ 3317.638187]  dc_commit_state+0x350/0x550 [amdgpu]
[ 3317.638214]  amdgpu_dm_atomic_commit_tail+0x37c/0xd70 [amdgpu]
[ 3317.638216]  ? preempt_count_add+0x68/0xa0
[ 3317.638217]  ? _raw_spin_lock_irq+0x1a/0x40
[ 3317.638218]  ? _raw_spin_unlock_irq+0x1d/0x30
[ 3317.638219]  ? wait_for_common+0x113/0x190
[ 3317.638220]  ? _raw_spin_unlock_irq+0x1d/0x30
[ 3317.638221]  ? wait_for_common+0x113/0x190
[ 3317.638226]  commit_tail+0x3d/0x70 [drm_kms_helper]
[ 3317.638230]  drm_atomic_helper_commit+0x103/0x110 [drm_kms_helper]
[ 3317.638237]  drm_mode_atomic_ioctl+0x7b1/0x920 [drm]
[ 3317.638244]  ? drm_mode_gamma_set_ioctl+0x1a4/0x1e0 [drm]
[ 3317.638250]  ? drm_atomic_set_property+0x510/0x510 [drm]
[ 3317.638255]  drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3317.638260]  drm_ioctl+0x30e/0x3c0 [drm]
[ 3317.638266]  ? drm_atomic_set_property+0x510/0x510 [drm]
[ 3317.638282]  amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
[ 3317.638285]  do_vfs_ioctl+0xa4/0x620
[ 3317.638286]  ? syscall_slow_exit_work+0x19b/0x1b0
[ 3317.638287]  ksys_ioctl+0x60/0x90
[ 3317.638288]  __x64_sys_ioctl+0x16/0x20
[ 3317.638289]  do_syscall_64+0x5b/0x170
[ 3317.638291]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 3317.638292] RIP: 0033:0x7f58fa55079b
[ 3317.638292] Code: 0f 1e fa 48 8b 05 c5 b6 0c 00 64 c7 00 26 00 00 00 48 c7
c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d 95 b6 0c 00 f7 d8 64 89 01 48 
[ 3317.638305] RSP: 002b:00007fffdf163ed8 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[ 3317.638306] RAX: ffffffffffffffda RBX: 0000561db012e740 RCX:
00007f58fa55079b
[ 3317.638307] RDX: 00007fffdf163f20 RSI: 00000000c03864bc RDI:
000000000000000e
[ 3317.638307] RBP: 00007fffdf163f20 R08: 0000561db06b29a0 R09:
0000000000000002
[ 3317.638308] R10: 0000000000000002 R11: 0000000000000246 R12:
00000000c03864bc
[ 3317.638308] R13: 000000000000000e R14: 0000000000000000 R15:
0000561db007ec20
[ 3317.638309] ---[ end trace 7afdbaeea0334919 ]---

I wasn't having these issues with 4.17 as far as I could tell.

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