https://bugzilla.kernel.org/show_bug.cgi?id=214859

Bug ID: 214859 Summary: drm-amdgpu-init-iommu~fd-device-init.patch introduce bug Product: Drivers Version: 2.5 Kernel Version: 5.14.15 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: towo@siduction.org Regression: No

After commit d60096b3b2c2..cd8cc7d31b49 100644 drm-amdgpu-init-iommu~fd-device-init.patch

Kernel 5.14.15 on most Ryzen Notebooks X cant't start really. There is a long time, before x is starting, dmesg is spammed with failure messages like

Okt 28 10:28:08 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6 Okt 28 10:28:21 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706 Okt 28 10:28:34 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6 Okt 28 10:28:47 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706 Okt 28 10:29:01 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6 Okt 28 10:29:14 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706 Okt 28 10:29:27 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706

and/or

Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: [gfxhub0] no-retry page fault (src_id:0 ring:128 vmid:0 pasid:0, for process pid 0 thread pid 0) Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: in page starting at address 0x0000000000872000 from IH client 0x1b (UTCL2) Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: VM_L2_PROTECTION_FAULT_STATUS:0x00040D00 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: Faulty UTCL2 client ID: CPG (0x6) Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: MORE_FAULTS: 0x0 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: WALKER_ERROR: 0x0 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: PERMISSION_FAULTS: 0x0 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: MAPPING_ERROR: 0x1 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: RW: 0x1 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: [gfxhub0] no-retry page fault (src_id:0 ring:128 vmid:0 pasid:0, for process pid 0 thread pid 0) Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: in page starting at address 0x0000000000872000 from IH client 0x1b (UTCL2) Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: VM_L2_PROTECTION_FAULT_STATUS:0x00040D00 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: Faulty UTCL2 client ID: CPG (0x6) Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: MORE_FAULTS: 0x0 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: WALKER_ERROR: 0x0 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: PERMISSION_FAULTS: 0x0 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: MAPPING_ERROR: 0x1 Okt 28 10:29:40 kernel: ^[[0;1;39mamdgpu 0000:04:00.0: amdgpu: RW: 0x1

Reverting that commit and the kernel is back working normal. Here the related reports from our users (ignore the nvidia posts). https://forum.siduction.org/index.php?topic=8439.0