** Also affects: linux-oem-5.14 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux-oem-5.14 (Ubuntu)
Status: Fix Committed => Invalid
** Changed in: linux-oem-5.14 (Ubuntu Focal)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1945348
Title:
Yellow Carp S0i3 stability fix
Status in amd:
Fix Committed
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux-oem-5.14 source package in Focal:
Fix Committed
Bug description:
[Impact]
Below errors are reported with S0i3 on Yellow carp where under
stress testing with 5.14.0 through 5.14.8.
[drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block
<sdma_v5_2> failed -110
amdgpu 0000:04:00.0: amdgpu: amdgpu_device_ip_resume failed (-110).
PM: dpm_run_callback(): pci_pm_resume+0x0/0x90 returns -110
amdgpu 0000:04:00.0: PM: failed to resume async: error -110
[Fix]
The patch fixes this by forcing exit gfxoff for sdma resume.
The patch is in 5.15-rc4
(https://github.com/torvalds/linux/commit/26db706a6d77b9e184feb11725e97e53b7a89519)
[Test]
This is requested by AMD.
[Where problems could occur]
Low risk. This only affects AMD platforms with s0ix supports. The
changes repeat what is (should be) done in firmware.
===== original descriptions =====
A problem is identified with S0i3 on Yellow carp where under stress
testing with 5.14.0 through 5.14.8 sometimes there will be failures.
It will manifest as:
[drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block
<sdma_v5_2> failed -110
amdgpu 0000:04:00.0: amdgpu: amdgpu_device_ip_resume failed (-110).
PM: dpm_run_callback(): pci_pm_resume+0x0/0x90 returns -110
amdgpu 0000:04:00.0: PM: failed to resume async: error -110
The fix for this will be going into 5.15-rcX and also to 5.14.y. Just want
to give a pointer to Canonical team that if this comes up where to expect the
fix for OEM kernel.
The patch going into 5.15-rcX and 5.14.y is:
https://lists.freedesktop.org/archives/amd-gfx/2021-September/069451.html
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