[Bug 221073] xHCI host controller dies on resume from s2idle on AMD Strix Halo [1022:1587]

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221073

--- Comment #6 from Mario Limonciello (AMD) (mario.limonciello@amd.com) ---
> Is this unique to s2idle or can it also happen after suspend to RAM or
> hibernation?

The hardware doesn't support s3, only s2idle.

> @davidhubbard isolated iGPU memory allocation as a variable:

That's really odd to me to change things.  Are you 100% sure?   This issue
feels like a race condition of some sort, especially if you can unbind and
rebind after the issue happens to recover.

> The RESET_ON_RESUME quirk may possibly work as bandaid, try
> xhci_hcd.quirks=0x80 boot parameter or pass it to xhci_hcd module if using
> one. All USB devices will be dropped and re-enumerated on resume.

This doesn't seem ideal to me if most suspends are fine.  Until we get to the
bottom of this maybe we want a RESET_ON_FAILURE type of behavior instead to use
in the resume routine?

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