linux-kernel - [PATCH v9 0/2] Adding support for Versal CPM as Root Port driver

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Date:   Tue, 16 Jun 2020 18:26:52 +0530
From:   Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
To:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     bhelgaas@...gle.com, lorenzo.pieralisi@....com, robh@...nel.org,
        maz@...nel.org,
        Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
Subject: [PATCH v9 0/2]  Adding support for Versal CPM as Root Port driver

- Adding support for Versal CPM as Root port.
- The Versal ACAP devices include CCIX-PCIe Module (CPM). The integrated
  block for CPM along with the integrated bridge can function
  as PCIe Root Port.
- Versal CPM uses GICv3 ITS feature for assigning MSI/MSI-X
  vectors and handling MSI/MSI-X interrupts.
- Bridge error and legacy interrupts in Versal CPM are handled using
  Versal CPM specific interrupt line.

Changes for v9:
- Removed interrupt enablement outside irqchip flow as suggested
  by Marc.
- Removed using WARN_ON in if statement.

Bharat Kumar Gogada (2):
  PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port
  PCI: xilinx-cpm: Add Versal CPM Root Port driver

 .../devicetree/bindings/pci/xilinx-versal-cpm.yaml |  99 ++++
 drivers/pci/controller/Kconfig                     |   8 +
 drivers/pci/controller/Makefile                    |   1 +
 drivers/pci/controller/pcie-xilinx-cpm.c           | 615 +++++++++++++++++++++
 4 files changed, 723 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
 create mode 100644 drivers/pci/controller/pcie-xilinx-cpm.c

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2.7.4