ACK: [PATCH v2 0/2][SRU][J][K] System freeze after resuming from suspend due to PCI ASPM settings

[Kai-Heng Feng]

On Thu, Aug 25, 2022 at 9:56 AM AceLan Kao <acelan.kao at canonical.com> wrote:
>
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
>
> BugLink: https://bugs.launchpad.net/bugs/1980829
>
> [Impact]
> While doing some tests such as suspend/resume or CPU stress tests the system would hang.
>
> [Fix]
> The 2 commits fix the issue, but still not get accepted yet.
> https://patchwork.ozlabs.org/project/linux-pci/patch/20220705060014.10050-1-vidyas@nvidia.com/
> https://patchwork.ozlabs.org/project/linux-pci/patch/20220509073639.2048236-1-kai.heng.feng@canonical.com/
>
> So, I created a DMI quirk to make the patches only affects on listed platforms.
>
> [Test]
> Verified on the failed machines and ODM also verified on their side.
>
> [Where problems could occur]
> The patches only affects on the listed platforms, and won't affect other platforms.
>
> Chia-Lin Kao (AceLan) (1):
>   UBUNTU: SAUCE: whitelist platforms that needs save/restore ASPM L1SS
>     for suspend/resume
>
> Vidya Sagar (1):
>   UBUNTU: SAUCE: PCI/ASPM: Save/restore L1SS Capability for
>     suspend/resume

Acked-by: Kai-Heng Feng <kai.heng.feng at canonical.com>

>
>  drivers/pci/pci.c       | 30 +++++++++++++++++++++++++++-
>  drivers/pci/pci.h       |  4 ++++
>  drivers/pci/pcie/aspm.c | 44 +++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 77 insertions(+), 1 deletion(-)
>
> --
> 2.25.1
>
>
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