linux-kernel - [PATCH 0/2] PCI: Convert the Apple controller to host bridge hooks

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Message-Id: <20241204150145.800408-1-maz@kernel.org>
Date: Wed,  4 Dec 2024 15:01:43 +0000
From: Marc Zyngier <maz@...nel.org>
To: linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Bjorn Helgaas <bhelgaas@...gle.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Alyssa Rosenzweig <alyssa@...enzweig.io>,
	Frank Li <Frank.Li@....com>
Subject: [PATCH 0/2] PCI: Convert the Apple controller to host bridge hooks

The Apple PCIe controller requires some additional attention when
enabling an endpoint device, so that the RID gets correctly mapped to
a SID on its way to the IOMMU.

So far, we have need relying on a custom bus notifier to perform this
task, but Frank Li's series [1] is a better approach as it puts the
complexity in the core code instead of the host controller driver, and
this series builds on that:

- allow the new {en,dis}able_device() to be provided via pci_ecam_ops

- convert the Apple PCIe driver to that infrastructure

Patches on top of 6.13-rc1, plus Frank's v7 series.

[1] https://lore.kernel.org/r/20241203-imx95_lut-v7-0-d0cd6293225e@nxp.com

Marc Zyngier (2):
  PCI: host-generic: Allow {en,dis}able_device() to be provided via
    pci_ecam_ops
  PCI: apple: Convert to {en,dis}able_device() callbacks

 drivers/pci/controller/pci-host-common.c |  2 +
 drivers/pci/controller/pcie-apple.c      | 75 +++++-------------------
 include/linux/pci-ecam.h                 |  4 ++
 3 files changed, 21 insertions(+), 60 deletions(-)

-- 
2.39.2