linux-kernel - [PATCH v12 00/13] PCI: Use device bus range info to cleanup RC Host/EP pci_fixup

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Message-Id: <20250315201548.858189-1-helgaas@kernel.org>
Date: Sat, 15 Mar 2025 15:15:35 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: Rob Herring <robh@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Richard Zhu <hongxing.zhu@....com>,
	Lucas Stach <l.stach@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Niklas Cassel <cassel@...nel.org>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	imx@...ts.linux.dev,
	Bjorn Helgaas <bhelgaas@...gle.com>
Subject: [PATCH v12 00/13] PCI: Use device bus range info to cleanup RC Host/EP pci_fixup_addr()

From: Bjorn Helgaas <bhelgaas@...gle.com>

This is a v12 based on Frank's v11 series.

v11 https://lore.kernel.org/r/20250313-pci_fixup_addr-v11-0-01d2313502ab@nxp.com
    
Changes from v11:
  - Call devm_pci_alloc_host_bridge() early in dw_pcie_host_init(), before
    any devicetree-related code
  - Call devm_pci_epc_create() early in dw_pcie_ep_init(), before any
    devicetree-related code
  - Consolidate devicetree-related code in dw_pcie_host_get_resources() and
    dw_pcie_ep_get_resources()
  - Integrate dw_pcie_cfg0_setup() into dw_pcie_host_get_resources()
  - Convert dw_pcie_init_parent_bus_offset() to dw_pcie_parent_bus_offset()
    which returns the offset rather than setting it internally
  - Split the debug comparison of devicetree info with .cpu_addr_fixup() to
    separate patch so we can easily revert it later
  - Drop "cpu_addr_fixup() usage detected" warning since we always warn
    about something in that case anyway

Any comments welcome.


Bjorn Helgaas (3):
  PCI: dwc: Consolidate devicetree handling in
    dw_pcie_host_get_resources()
  PCI: dwc: ep: Call epc_create() early in dw_pcie_ep_init()
  PCI: dwc: ep: Consolidate devicetree handling in
    dw_pcie_ep_get_resources()

Frank Li (10):
  PCI: dwc: Use resource start as iomap() input in
    dw_pcie_pme_turn_off()
  PCI: dwc: Rename cpu_addr to parent_bus_addr for ATU configuration
  PCI: dwc: Call devm_pci_alloc_host_bridge() early in
    dw_pcie_host_init()
  PCI: dwc: Add dw_pcie_parent_bus_offset()
  PCI: dwc: Add dw_pcie_parent_bus_offset() checking and debug
  PCI: dwc: Use devicetree 'reg[config]' to derive CPU -> ATU addr
    offset
  PCI: dwc: ep: Use devicetree 'reg[addr_space]' to derive CPU -> ATU
    addr offset
  PCI: dwc: ep: Ensure proper iteration over outbound map windows
  PCI: dwc: Use parent_bus_offset to remove need for .cpu_addr_fixup()
  PCI: imx6: Remove cpu_addr_fixup()

 drivers/pci/controller/dwc/pci-imx6.c         | 18 +---
 .../pci/controller/dwc/pcie-designware-ep.c   | 74 +++++++++++------
 .../pci/controller/dwc/pcie-designware-host.c | 57 ++++++++-----
 drivers/pci/controller/dwc/pcie-designware.c  | 82 ++++++++++++++-----
 drivers/pci/controller/dwc/pcie-designware.h  | 24 +++++-
 5 files changed, 171 insertions(+), 84 deletions(-)

-- 
2.34.1