[Bug 107898] "kfd: Failed to resume IOMMU for device 1002:15dd" on Raven Ridge

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107898

            Bug ID: 107898
           Summary: "kfd: Failed to resume IOMMU for device 1002:15dd" on
                    Raven Ridge
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/amdkfd
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: marvin.damschen at gullz.de

Created attachment 141520
  --> https://bugs.freedesktop.org/attachment.cgi?id=141520&action=edit
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

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