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@xxxxxxx> --- 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
