APPLIED [OEM-5.13] Re: [SRU] [OEM-5.10/OEM-5.13] [PATCH 0/2] Backport AMD nvme workaround

Timo Aaltonen tjaalton at ubuntu.com
Fri Jul 2 09:24:45 UTC 2021


On 1.7.2021 8.18, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1930719
> 
> [Impact]
> S2idle still fails on some AMD Renoir laptops.
> 
> [Fix]
> Commit "nvme-pci: look for StorageD3Enable on companion ACPI device
> instead" requires correspondence change in ACPI to really work.
> 
> [Test]
> AMD confirmed the two commits can make the s2idle work on Renoir
> platforms.
> 
> [Where problems could occur]
> If any AMD platform actually supports D3cold, this change may increase
> power consumption.
> 
> Mario Limonciello (2):
>    ACPI: Check StorageD3Enable _DSD property in ACPI code
>    ACPI: Add quirks for AMD Renoir/Lucienne CPUs to force the D3 hint
> 
>   drivers/acpi/device_pm.c | 32 ++++++++++++++++++++++++++++++++
>   drivers/acpi/internal.h  |  9 +++++++++
>   drivers/acpi/x86/utils.c | 25 +++++++++++++++++++++++++
>   drivers/nvme/host/pci.c  | 28 +---------------------------
>   include/linux/acpi.h     |  5 +++++
>   5 files changed, 72 insertions(+), 27 deletions(-)
> 

applied to oem-5.13, thanks


-- 
t



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