From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934559AbdACGe6 (ORCPT ); Tue, 3 Jan 2017 01:34:58 -0500 Received: from mail-pg0-f43.google.com ([74.125.83.43]:36641 "EHLO mail-pg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934516AbdACGe3 (ORCPT ); Tue, 3 Jan 2017 01:34:29 -0500 From: Rajat Jain To: Bjorn Helgaas , Keith Busch , Andreas Ziegler , Jonathan Yong , Shawn Lin , David Daney , Julia Lawall , Ram Amrani , Doug Ledford , Wang Sheng-Hui , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Rajat Jain , Rajat Jain , Brian Norris Subject: [PATCH 0/6] PCI/ASPM: Add PCIe L1 PM substate support Date: Mon, 2 Jan 2017 22:34:09 -0800 Message-Id: <1483425255-101923-1-git-send-email-rajatja@google.com> X-Mailer: git-send-email 2.8.0.rc3.226.g39d4020 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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