linux-kernel - [PATCH v4 pci 0/2] PCI/MSI: pci-xgene-msi: Enable MSI support in ACPI boot for X-Gene v1

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Date:   Tue, 26 Sep 2017 11:49:19 -0600
From:   Khuong Dinh <kdinh@....com>
To:     lorenzo.pieralisi@....com, marc.zyngier@....com,
        msalter@...hat.com, bhelgaas@...gle.com, linux-pci@...r.kernel.org,
        jcm@...hat.com
Cc:     patches@....com, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, rjw@...ysocki.net,
        Khuong Dinh <kdinh@....com>
Subject: [PATCH v4 pci 0/2] PCI/MSI: pci-xgene-msi: Enable MSI support in ACPI boot for X-Gene v1

This patch set enables ACPI MSI support for X-Gene PCIe v1 hardware
and provides the proper MSI driver initialization ordering.

Signed-off-by: Khuong Dinh <kdinh@....com>
---
v4:
 - Remove Marc Zyngier ACK in v2
 - Use acpi_bus_scan on MSI controller handle when MSI device is found
 - Register ACPI MSI driver when MSI device is found instead of using
 subsys_initcall
 - Split ACPI MSI driver support into two patches - one to enable MSI
support for X-Gene PCIe v1 hardware, one to enforce MSI driver loaded
before PCIe controller driver in ACPI boot mode
v3:
 - Input X-Gene MSI base address for irq_domain_alloc_fwnode
 - Add a hook to enforce X-Gene MSI be probed prior acpi_bus_scan happens
v2:
 - Verify with BIOS version 3.06.25 and 3.07.09
v1:
 - Initial version
---

Khuong Dinh (2):
  PCI/MSI: pci-xgene-msi: Enable MSI support in ACPI boot for X-Gene v1
  PCI/MSI: Enforce MSI driver loaded before PCIe in ACPI boot

 drivers/acpi/Makefile            |    2 +-
 drivers/acpi/acpi_msi.c          |   86 ++++++++++++++++++++++++++++++++++++++
 drivers/acpi/acpi_platform.c     |    3 +-
 drivers/acpi/internal.h          |    1 +
 drivers/acpi/scan.c              |    1 +
 drivers/pci/host/pci-xgene-msi.c |   60 ++++++++++++++++++++++++--
 include/linux/acpi_msi.h         |   37 ++++++++++++++++
 7 files changed, 183 insertions(+), 7 deletions(-)
 create mode 100644 drivers/acpi/acpi_msi.c
 create mode 100644 include/linux/acpi_msi.h