Re: [PATCH] PCI: Save/restore L1 PM Substate extended capability registers

2020-12-09 Thread David E. Box
Great. Thanks Vidya. On Wed, 2020-12-09 at 09:38 +0530, Vidya Sagar wrote: > There is a change already available for it in linux-next > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=4257f7e008ea394fcecc050f1569c3503b8bcc15 > > Thanks, > Vidya Sagar > > On

Re: [PATCH] PCI: Save/restore L1 PM Substate extended capability registers

2020-12-08 Thread Vidya Sagar
There is a change already available for it in linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=4257f7e008ea394fcecc050f1569c3503b8bcc15 Thanks, Vidya Sagar On 12/9/2020 3:36 AM, David E. Box wrote: External email: Use caution opening links or

[PATCH] PCI: Save/restore L1 PM Substate extended capability registers

2020-12-08 Thread David E. Box
On Intel systems that support ACPI Low Power Idle it has been observed that the L1 Substate capability can return disabled after a s2idle cycle. This causes the loss of L1 Substate support during runtime leading to higher power consumption. Add save/restore of the L1SS control registers.