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Hi Qu,
that problem is completely unrelated to amdgpu. See you thunderbold bridge fails to assign the necessary I/O resources to the PCI device long before amdgpu even loads: From your dmesg:
This is a rather unusual problem and I have no idea how you ended up with that. But with this setup it is impossible for the driver to access the device. Regards, Christian. Am 01.01.20 um 10:31 schrieb Qu Wenruo: Hi, Not sure if this is reported before, but amdgpu is initialized for an external GPU (thunderbolt 3), which is not accessible at boot, only after boltctl initialized the tb3 subsystem. Then amdgpu will report an timeout, and failed to really initialize the GPU. At this stage, one my of monitors (U2414H, DP) reports unsupported framerate, while the other monitor (HP 24mh, HDMI) just reports no signal The involved GPU is RX580. The tb3 enclosure is AORUS GAMING BOX. And obviously, this eGPU works pretty fine under Windows. So my normal boot routine needs to boot into windows, then reboot into Linux without unplug the tb3 connector, to make the eGPU work under Linux. The kernel warning is: Jan 01 07:22:25 thinkpad kernel: [drm] REG_WAIT timeout 10us * 3500 tries - dce_mi_free_dmif line:634 Jan 01 07:22:25 thinkpad kernel: ------------[ cut here ]------------ Jan 01 07:22:25 thinkpad kernel: WARNING: CPU: 6 PID: 804 at drivers/gpu/drm/amd/amdgpu/../display/dc/dc_helper.c:332 generic_reg_wait.cold+0x25/0x2c [amdgpu] Jan 01 07:22:25 thinkpad kernel: Modules linked in: xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT tun bridge stp llc nf_tables_set nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct amdgpu nft_chain_nat msr nf_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle gpu_sched iptable_raw ttm iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac algif_hash algif_skcipher af_alg bnep joydev mousedev btrfs xor rmi_smbus rmi_core snd_hda_codec_hdmi iTCO_wdt mei_wdt mei_hdcp iTCO_vendor_support snd_hda_codec_realtek intel_rapl_msr wmi_bmof raid6_pq intel_wmi_thunderbolt iwlmvm snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp snd_hda_intel coretemp snd_intel_nhlt mac80211 kvm_intel snd_hda_codec nls_iso8859_1 libarc4 uvcvideo nls_cp437 intel_cstate btusb snd_hda_core Jan 01 07:22:25 thinkpad kernel: vfat videobuf2_vmalloc intel_uncore btrtl snd_hwdep btbcm iwlwifi videobuf2_memops intel_rapl_perf fat videobuf2_v4l2 btintel snd_pcm pcspkr psmouse input_leds videobuf2_common mei_me e1000e i2c_i801 snd_timer thunderbolt bluetooth cfg80211 videodev mei thinkpad_acpi intel_xhci_usb_role_switch processor_thermal_device ucsi_acpi ecdh_generic mc nvram ecc intel_rapl_common intel_soc_dts_iosf crc16 intel_pch_thermal roles typec_ucsi ledtrig_audio rfkill typec snd int3403_thermal wmi soundcore battery ac int340x_thermal_zone i2c_hid hid evdev int3400_thermal mac_hid acpi_thermal_rel crypto_user acpi_call(OE) kvmgt i915 vfio_mdev mdev vfio_iommu_type1 vfio i2c_algo_bit drm_kms_helper drm intel_gtt agpgart syscopyarea sysfillrect sysimgblt fb_sys_fops kvm irqbypass ip_tables x_tables xfs libcrc32c crc32c_generic sd_mod uas usb_storage scsi_mod dm_crypt crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel dm_mod serio_raw atkbd libps2 aesni_intel crypto_simd xhci_pci cryptd Jan 01 07:22:25 thinkpad kernel: glue_helper xhci_hcd i8042 serio Jan 01 07:22:25 thinkpad kernel: CPU: 6 PID: 804 Comm: Xorg Tainted: G U OE 5.4.6-arch3-1 #1 Jan 01 07:22:25 thinkpad kernel: Hardware name: LENOVO 20KHCTO1WW/20KHCTO1WW, BIOS N23ET68W (1.43 ) 10/16/2019 Jan 01 07:22:25 thinkpad kernel: RIP: 0010:generic_reg_wait.cold+0x25/0x2c [amdgpu] Jan 01 07:22:25 thinkpad kernel: Code: e9 82 23 fe ff 44 8b 44 24 24 48 8b 4c 24 18 44 89 fa 89 ee 48 c7 c7 50 73 ab c1 e8 96 5d 92 ef 83 7b 20 01 0f 84 48 31 fe ff <0f> 0b e9 41 31 fe ff e8 b2 16 e7 ff 48 c7 c7 00 50 b7 c1 e8 e6 8e Jan 01 07:22:25 thinkpad kernel: RSP: 0018:ffff9e61c147b5c8 EFLAGS: 00010297 Jan 01 07:22:25 thinkpad kernel: RAX: 0000000000000044 RBX: ffff95854881e200 RCX: 0000000000000000 Jan 01 07:22:25 thinkpad kernel: RDX: 0000000000000000 RSI: ffff95854e397708 RDI: 00000000ffffffff Jan 01 07:22:25 thinkpad kernel: RBP: 000000000000000a R08: 0000000000000507 R09: 0000000000000004 Jan 01 07:22:25 thinkpad kernel: R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000322 Jan 01 07:22:25 thinkpad kernel: R13: 0000000000000dad R14: 0000000000000001 R15: 0000000000000dac Jan 01 07:22:25 thinkpad kernel: FS: 00007f9e87acbdc0(0000) GS:ffff95854e380000(0000) knlGS:0000000000000000 Jan 01 07:22:25 thinkpad kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 01 07:22:25 thinkpad kernel: CR2: 00007f9e831de5b0 CR3: 00000004893f4006 CR4: 00000000003606e0 Jan 01 07:22:25 thinkpad kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 01 07:22:25 thinkpad kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jan 01 07:22:25 thinkpad kernel: Call Trace: Jan 01 07:22:25 thinkpad kernel: dce_mi_free_dmif+0xf7/0x160 [amdgpu] Jan 01 07:22:25 thinkpad kernel: dce110_reset_hw_ctx_wrap+0x193/0x260 [amdgpu] Jan 01 07:22:25 thinkpad kernel: dce110_apply_ctx_to_hw+0x51/0x5d0 [amdgpu] Jan 01 07:22:25 thinkpad kernel: ? dce110_apply_ctx_for_surface+0x22e/0x2c0 [amdgpu] Jan 01 07:22:25 thinkpad kernel: dc_commit_state+0x280/0x5e0 [amdgpu] Jan 01 07:22:25 thinkpad kernel: amdgpu_dm_atomic_commit_tail+0x1151/0x1da0 [amdgpu] Jan 01 07:22:25 thinkpad kernel: ? __mod_zone_page_state+0x66/0xa0 Jan 01 07:22:25 thinkpad kernel: ? dm_read_reg_func+0x1f/0x90 [amdgpu] Jan 01 07:22:25 thinkpad kernel: ? dce110_timing_generator_get_position+0x55/0x60 [amdgpu] Jan 01 07:22:25 thinkpad kernel: ? dm_crtc_get_scanoutpos+0x85/0xe0 [amdgpu] Jan 01 07:22:25 thinkpad kernel: ? commit_tail+0x94/0x110 [drm_kms_helper] Jan 01 07:22:25 thinkpad kernel: commit_tail+0x94/0x110 [drm_kms_helper] Jan 01 07:22:25 thinkpad kernel: drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper] Jan 01 07:22:25 thinkpad kernel: drm_atomic_helper_set_config+0x81/0x90 [drm_kms_helper] Jan 01 07:22:25 thinkpad kernel: drm_mode_setcrtc+0x1f0/0x730 [drm] Jan 01 07:22:25 thinkpad kernel: ? dma_fence_default_wait+0x23a/0x2c0 Jan 01 07:22:25 thinkpad kernel: ? drm_mode_getcrtc+0x180/0x180 [drm] Jan 01 07:22:25 thinkpad kernel: drm_ioctl_kernel+0xb2/0x100 [drm] Jan 01 07:22:25 thinkpad kernel: drm_ioctl+0x209/0x360 [drm] Jan 01 07:22:25 thinkpad kernel: ? drm_mode_getcrtc+0x180/0x180 [drm] Jan 01 07:22:25 thinkpad kernel: amdgpu_drm_ioctl+0x49/0x80 [amdgpu] Jan 01 07:22:25 thinkpad kernel: do_vfs_ioctl+0x43d/0x6c0 Jan 01 07:22:25 thinkpad kernel: ksys_ioctl+0x5e/0x90 Jan 01 07:22:25 thinkpad kernel: ? switch_fpu_return+0x2d/0x140 Jan 01 07:22:25 thinkpad kernel: __x64_sys_ioctl+0x16/0x20 Jan 01 07:22:25 thinkpad kernel: do_syscall_64+0x4e/0x140 Jan 01 07:22:25 thinkpad kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Jan 01 07:22:25 thinkpad kernel: RIP: 0033:0x7f9e8891225b Jan 01 07:22:25 thinkpad kernel: Code: 0f 1e fa 48 8b 05 25 9c 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 f5 9b 0c 00 f7 d8 64 89 01 48 Jan 01 07:22:25 thinkpad kernel: RSP: 002b:00007fff7908d8f8 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 Jan 01 07:22:25 thinkpad kernel: RAX: ffffffffffffffda RBX: 00007fff7908d930 RCX: 00007f9e8891225b Jan 01 07:22:25 thinkpad kernel: RDX: 00007fff7908d930 RSI: 00000000c06864a2 RDI: 000000000000000d Jan 01 07:22:25 thinkpad kernel: RBP: 00000000c06864a2 R08: 0000000000000000 R09: 0000000000000000 Jan 01 07:22:25 thinkpad kernel: R10: 0000000000000000 R11: 0000000000003246 R12: 000056450439de20 Jan 01 07:22:25 thinkpad kernel: R13: 000000000000000d R14: 00007fff7908dbc8 R15: 00005645043996e0 Jan 01 07:22:25 thinkpad kernel: ---[ end trace 2b805e0326fe3e37 ]--- The full dmesg can be found here: https://gist.github.com/adam900710/ada1566160e61be1efa5d789b124bc80 Hopes one day eGPU can work better under Linux. Thanks, Qu |
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