** Changed in: linux-oem-5.13 (Ubuntu Focal)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1934809
Title:
Backport support for AMD SMU statistics
Status in linux package in Ubuntu:
New
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux-oem-5.13 package in Ubuntu:
Invalid
Status in linux source package in Focal:
New
Status in linux-oem-5.10 source package in Focal:
Won't Fix
Status in linux-oem-5.13 source package in Focal:
Fix Committed
Status in linux source package in Impish:
New
Status in linux-oem-5.10 source package in Impish:
Invalid
Status in linux-oem-5.13 source package in Impish:
Invalid
Bug description:
[Impact]
AMD RN and CZN SOC can collect extra debugging data for s0i3. This
information is useful for finding problems with IP blocks not going into
correct states.
[Fix]
The following patch series adds support for these stats and will be included
in 5.14.
https://patchwork.kernel.org/project/platform-driver-x86/patch/20210629084803.248498-2-shyam-sundar....@amd.com/
[Test]
Check for extra debugfs files on amd platform. Verify that s0i3 shows
successful enter (counter increases to non-zero).
[Where problems could occur]
The code is only used on amd platforms in s2idle. It would be specific to
those platforms and cases (where it is adding support for debugging).
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