linux-kernel - [GIT PULL] PCI fixes for v6.7

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Message-ID: <20231215211115.GA1141361@bhelgaas>
Date: Fri, 15 Dec 2023 15:11:15 -0600
From: Bjorn Helgaas <helgaas@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Wilczyński <kwilczynski@...nel.org>,
	Jiaxun Yang <jiaxun.yang@...goat.com>,
	Huacai Chen <chenhuacai@...ngson.cn>,
	Johan Hovold <johan+linaro@...nel.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Igor Mammedov <imammedo@...hat.com>,
	Fiona Ebner <f.ebner@...xmox.com>,
	Dongli Zhang <dongli.zhang@...cle.com>,
	Jonathan Woithe <jwoithe@...t42.net>
Subject: [GIT PULL] PCI fixes for v6.7

The following changes since commit b85ea95d086471afb4ad062012a4d73cd328fa86:

  Linux 6.7-rc1 (2023-11-12 16:19:07 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git tags/pci-v6.7-fixes-1

for you to fetch changes up to 5df12742b7e3aae2594a30a9d14d5d6e9e7699f4:

  Revert "PCI: acpiphp: Reassign resources on bridge if necessary" (2023-12-15 14:55:10 -0600)

----------------------------------------------------------------
- Limit Max_Read_Request_Size (MRRS) on some MIPS Loongson systems because
  they don't all support MRRS > 256, and firmware doesn't always initialize
  it correctly, which meant some PCIe devices didn't work (Jiaxun Yang)

- Add and use pci_enable_link_state_locked() to prevent potential deadlocks
  in vmd and qcom drivers (Johan Hovold)

- Revert recent (v6.5) acpiphp resource assignment changes that fixed
  issues with hot-adding devices on a root bus or with large BARs, but
  introduced new issues with GPU initialization and hot-adding SCSI disks
  in QEMU VMs and (Bjorn Helgaas)

----------------------------------------------------------------
Bjorn Helgaas (1):
      Revert "PCI: acpiphp: Reassign resources on bridge if necessary"

Jiaxun Yang (1):
      PCI: loongson: Limit MRRS to 256

Johan Hovold (6):
      PCI/ASPM: Add pci_enable_link_state_locked()
      PCI: vmd: Fix potential deadlock when enabling ASPM
      PCI: qcom: Fix potential deadlock when enabling ASPM
      PCI: qcom: Clean up ASPM comment
      PCI/ASPM: Clean up __pci_disable_link_state() 'sem' parameter
      PCI/ASPM: Add pci_disable_link_state_locked() lockdep assert

 drivers/pci/controller/dwc/pcie-qcom.c |  7 ++--
 drivers/pci/controller/pci-loongson.c  | 46 +++++++++++++++++++++---
 drivers/pci/controller/vmd.c           |  2 +-
 drivers/pci/hotplug/acpiphp_glue.c     |  9 ++---
 drivers/pci/pcie/aspm.c                | 65 ++++++++++++++++++++++++----------
 include/linux/pci.h                    |  3 ++
 6 files changed, 100 insertions(+), 32 deletions(-)