Re: [PATCH] platform/x86: Add s2idle quirk for more Lenovo laptops

[Greg KH <gregkh@linuxfoundation.org>]

On Sun, Oct 29, 2023 at 07:20:38PM +0100, David Lazar wrote:
> commit 3bde7ec13c971445faade32172cb0b4370b841d9 upstream.
> 
> When suspending to idle and resuming on some Lenovo laptops using the
> Mendocino APU, multiple NVME IOMMU page faults occur, showing up in
> dmesg as repeated errors:
> 
> nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000b
> address=0xb6674000 flags=0x0000]
> 
> The system is unstable afterwards.
> 
> Applying the s2idle quirk introduced by commit 455cd867b85b ("platform/x86:
> thinkpad_acpi: Add a s2idle resume quirk for a number of laptops")
> allows these systems to work with the IOMMU enabled and s2idle
> resume to work.
> 
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218024
> Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
> Suggested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
> Signed-off-by: David Lazar <dlazar@gmail.com>
> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
> Link: https://lore.kernel.org/r/ZTlsyOaFucF2pWrL@localhost
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> ---
>  drivers/platform/x86/amd/pmc/pmc-quirks.c | 73 +++++++++++++++++++++++++++++++
>  1 file changed, 73 insertions(+)

What stable kernel(s) are you wanting this applied to?

thanks,

greg k-h