"kfd: Failed to resume IOMMU for device 1002:15dd" on Raven Ridge

Submitted by Marvin Damschen

Assigned to Default DRI bug account

Link to original bug (#107898)

Description

Created attachment 141520
dmesg 4.19-rc3

Hey,

I wanted to try the newly-added support for Raven Ridge in amdkfd, but initialization fails at:
"kfd: Failed to resume IOMMU for device 1002:15dd" on AMD Ryzen 5 2500U (Lenovo E485) with 4.19-rc3. IOMMU itself seems to initialize fine (As I understand, I can ignore the "AMD-Vi: Unable to write to IOMMU perf counter." msg). Full log is attached.

Best regards
Marvin

Attachment 141520, "dmesg 4.19-rc3":
4.19-rc3.log