[Bug 107209] DM_PPLIB causes a warning on Raven

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107209

            Bug ID: 107209
           Summary: DM_PPLIB causes a warning on Raven
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: mike at fireburn.co.uk

Created attachment 140610
  --> https://bugs.freedesktop.org/attachment.cgi?id=140610&action=edit
Dmesg

Alex's drm-next-4.19-wip branch has been producing a warning with a stack trace
- everything seems to be working though 

[    0.334920] amdgpu: [powerplay] dpm has been enabled
[    0.334981] [drm] DM_PPLIB: values for Invalid clock
[    0.334982] [drm] DM_PPLIB:   0 in kHz
[    0.334984] [drm] DM_PPLIB:   0 in kHz
[    0.334985] [drm] DM_PPLIB:   0 in kHz
[    0.334986] [drm] DM_PPLIB:   1067000 in kHz
[    0.334998] WARNING: CPU: 4 PID: 1 at
drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dcn_calcs.c:1355
dcn_bw_update_from_pplib+0x166/0x270
[    0.335001] Modules linked in:
[    0.335005] CPU: 4 PID: 1 Comm: swapper/0 Tainted: G        W        
4.18.0-rc3-agd5f+ #198
[    0.335007] Hardware name: System manufacturer System Product Name/ROG STRIX
X470-I GAMING, BIOS 0601 04/19/2018
[    0.335011] RIP: 0010:dcn_bw_update_from_pplib+0x166/0x270
[    0.335012] Code: d8 ca d8 f1 d9 5a 50 8b 44 fc 14 49 8b 94 24 70 01 00 00
48 89 04 24 df 2c 24 d8 f1 db 42 78 de c9 de ca de f9 d9 5a 4c eb 02 <0f> 0b 48
89 da be 04 00 00 00 48 89 ef e8 98 89 fe ff 84 c0 0f 84
[    0.335034] RSP: 0018:ffffc900000379f8 EFLAGS: 00010246
[    0.335036] RAX: 0000000000000001 RBX: ffffc90000037a58 RCX:
0000000000000000
[    0.335038] RDX: 0000000000000000 RSI: 0000000000000004 RDI:
00000000ffffffff
[    0.335040] RBP: ffff88081b2e3bc0 R08: 0000000000000000 R09:
0000000000000296
[    0.335042] R10: ffff88081c091f00 R11: 0720072007200720 R12:
ffff88081b2c2000
[    0.335044] R13: ffff88081b5f8800 R14: ffff88081b2c2000 R15:
ffff88081b0e3030
[    0.335046] FS:  0000000000000000(0000) GS:ffff88083ed00000(0000)
knlGS:0000000000000000
[    0.335048] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.335050] CR2: ffffc900002c0000 CR3: 000000000340a000 CR4:
00000000003406a0
[    0.335051] Call Trace:
[    0.335057]  ? construct+0x799/0x940
[    0.335059]  ? dal_aux_engine_dce110_create+0x2f/0x70
[    0.335062]  ? dal_i2caux_dce110_construct.part.1+0x5c/0x90
[    0.335064]  ? dcn10_create_resource_pool+0x31/0x50
[    0.335068]  ? dc_create_resource_pool+0x3d/0x180
[    0.335071]  ? __kmalloc+0x166/0x170
[    0.335073]  ? dc_create+0x205/0x610
[    0.335076]  ? kmem_cache_alloc+0x22/0x120
[    0.335078]  ? dm_hw_init+0xc3/0x130
[    0.335082]  ? amdgpu_device_init.cold.32+0xc9f/0xe05
[    0.335085]  ? __alloc_pages_nodemask+0xc1/0x1d0
[    0.335088]  ? amdgpu_driver_load_kms+0x5e/0x190
[    0.335091]  ? drm_dev_register+0x104/0x140
[    0.335093]  ? amdgpu_pci_probe+0x136/0x1ad
[    0.335096]  ? _raw_spin_unlock_irqrestore+0xf/0x30
[    0.335099]  ? pci_device_probe+0xd1/0x160
[    0.335102]  ? driver_probe_device+0x229/0x2f0
[    0.335104]  ? __driver_attach+0xaf/0xd0
[    0.335106]  ? driver_probe_device+0x2f0/0x2f0
[    0.335108]  ? bus_for_each_dev+0x71/0xb0
[    0.335110]  ? bus_add_driver+0x192/0x1d0
[    0.335113]  ? do_early_param+0x89/0x89
[    0.335115]  ? driver_register+0x66/0xb0
[    0.335117]  ? kfd_module_init+0x92/0x92
[    0.335120]  ? do_one_initcall+0x42/0x162
[    0.335122]  ? do_early_param+0x89/0x89
[    0.335125]  ? kernel_init_freeable+0x145/0x1cf
[    0.335127]  ? rest_init+0xb0/0xb0
[    0.335129]  ? kernel_init+0x5/0xf0
[    0.335131]  ? ret_from_fork+0x22/0x40
[    0.335133] ---[ end trace 67bfeb8027e23cf6 ]---
[    0.335135] [drm] DM_PPLIB: values for Invalid clock
[    0.335136] [drm] DM_PPLIB:   300000 in kHz
[    0.335137] [drm] DM_PPLIB:   600000 in kHz
[    0.335139] [drm] DM_PPLIB:   626000 in kHz
[    0.335140] [drm] DM_PPLIB:   654000 in kHz

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