CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2025/12/06 06:18:07
Modified files:
sys/dev/acpi : acpi.c amltypes.h
Log message:
Many recent AMD SoCs need to have their NVMe placed into D3cold at suspend
time to properly resume. Other machines break when we do that. To solve
this dilemma, Microsoft introduced a "StorageD3Enable" ACPI property that
tells us what to do. Note that despite its name, this property seems to
be relevant for PCI devices that aren't storage related as well.
Implement support in our ACPI code to choose between D3hot and D3cold and
use the "StorageD3Enable" property to make that decision. This should fix
machines that no longer resume properly after the (somewhat) recent
improvements to S0ix suspend for AMD laptops.
ok jca@, deraadt@
