linux-kernel - Re: [PATCH 0/6] PCI/ASPM: Add PCIe L1 PM substate support

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Message-ID: <20170214234559.GC19040@bhelgaas-glaptop.roam.corp.google.com>
Date:   Tue, 14 Feb 2017 17:45:59 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Rajat Jain <rajatja@...gle.com>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Keith Busch <keith.busch@...el.com>,
        Andreas Ziegler <andreas.ziegler@....de>,
        Jonathan Yong <jonathan.yong@...el.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        David Daney <david.daney@...ium.com>,
        Julia Lawall <Julia.Lawall@...6.fr>,
        Ram Amrani <Ram.Amrani@...ium.com>,
        Doug Ledford <dledford@...hat.com>,
        Wang Sheng-Hui <shhuiw@...mail.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, Rajat Jain <rajatxjain@...il.com>,
        Brian Norris <briannorris@...gle.com>
Subject: Re: [PATCH 0/6] PCI/ASPM: Add PCIe L1 PM substate support

On Mon, Jan 02, 2017 at 10:34:09PM -0800, Rajat Jain wrote:
> This patchset adds the PCIe L1 PM substate support to the kernel.
> The feature is described at:
> https://pcisig.com/sites/default/files/specification_documents/ECN_L1_PM_Substates_with_CLKREQ_31_May_2013_Rev10a.pdf
> 
> Its all logically one patch (and may be some of them should be
> squashed later) , but I've broken down into smaller patches for
> ease of review. 
> 
> This is currently rebased on top of Bjorn's master branch.
> 
> Rajat Jain (6):
>   PCI: Add L1 substate capability structure register definitions
>   PCI/ASPM: Introduce L1 substates and a Kconfig for it
>   PCI/ASPM: Read and setup L1 substate capabilities
>   PCI/ASPM: Calculate and save the L1.2 timing parameters
>   PCI/ASPM: Actually configure the L1 substate settings to the device
>   PCI/ASPM: Add comment about L1 substate latency
> 
>  drivers/pci/pcie/Kconfig      |   8 ++
>  drivers/pci/pcie/aspm.c       | 291 ++++++++++++++++++++++++++++++++++++++++--
>  include/uapi/linux/pci_regs.h |  16 +++
>  3 files changed, 302 insertions(+), 13 deletions(-)

Applied to pci/aspm for v4.11, thanks, Rajat!