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

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Date:   Mon,  2 Jan 2017 22:34:09 -0800
From:   Rajat Jain <rajatja@...gle.com>
To:     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
Cc:     Rajat Jain <rajatja@...gle.com>, Rajat Jain <rajatxjain@...il.com>,
        Brian Norris <briannorris@...gle.com>
Subject: [PATCH 0/6] PCI/ASPM: Add PCIe L1 PM substate support

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(-)

-- 
2.8.0.rc3.226.g39d4020