linux-kernel - [PATCH v13 00/12] Fix wakeup problems on some AMD platforms

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Date:   Fri, 18 Aug 2023 00:13:07 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     "Rafael J . Wysocki" <rafael@...nel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Bjorn Helgaas <helgaas@...nel.org>
CC:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "Andy Shevchenko" <andriy.shevchenko@...ux.intel.com>,
        <linux-acpi@...r.kernel.org>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        "Iain Lane" <iain@...ngesquash.org.uk>,
        Shyam-sundar S-k <Shyam-sundar.S-k@....com>,
        Mario Limonciello <mario.limonciello@....com>
Subject: [PATCH v13 00/12] Fix wakeup problems on some AMD platforms

Problems have been reported on AMD laptops with suspend/resume
where particular root ports are put into D3 and then the system is unable
to resume properly.

This is caused by the policy used by the Linux kernel to put PCIe root ports
into D3. This series adjusts the policy to be more conservative and only
put root ports into D3 if the platform has indicated that it is necessary
to do so.

Andy Shevchenko (1):
  ACPI: x86: s2idle: Add for_each_lpi_constraint() helper

Mario Limonciello (11):
  PCI: Only put Intel PCIe ports >= 2015 into D3
  ACPI: Add comments to clarify some #ifdef statements
  ACPI: Adjust #ifdef for *_lps0_dev use
  ACPI: x86: s2idle: Post-increment variables when getting constraints
  ACPI: x86: s2idle: Catch multiple ACPI_TYPE_PACKAGE objects
  ACPI: x86: s2idle: Fix a logic error parsing AMD constraints table
  ACPI: x86: s2idle: Add more debugging for AMD constraints parsing
  ACPI: x86: s2idle: Add a function to get constraints for a device
  PCI: ACPI: Add helper functions for converting ACPI <->PCI states
  PCI: ACPI: Use device constraints to opt devices into D3 support
  PCI: ACPI: Limit the Intel specific opt-in to D3 to 2024

 drivers/acpi/x86/s2idle.c |  99 ++++++++++++++++++++++++-------------
 drivers/pci/pci-acpi.c    | 101 +++++++++++++++++++++++++-------------
 drivers/pci/pci.c         |  18 ++++++-
 drivers/pci/pci.h         |   5 ++
 include/linux/acpi.h      |  14 ++++--
 5 files changed, 163 insertions(+), 74 deletions(-)
base-commit: 2ccdd1b13c591d306f0401d98dedc4bdcd02b421
-- 
2.34.1