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It relies on Gustavo Pimentel's patch series adding MSI-X support in the PCIe EP driver framework, and implements MSI-X support for the cadence endpoint driver. - Use AXI region 0 for interrupt signalling - Write MSI and MSI-X with 32bit value rather than 16bit - Check for masking before sending MSI or MSI-X - Check link is up before sending IRQ - Use BAR5 for MSI-X vectors Alan Douglas (5): PCI: cadence: Use AXI region 0 to signal interrupts from EP PCI: cadence: Write MSI data with 32bits PCI: cadence: Check whether MSI is masked before sending it PCI: cadence: Check link is up before sending IRQ from EP PCI: cadence: Add MSI-X capability to EP driver drivers/pci/controller/pcie-cadence-ep.c | 129 ++++++++++++++++++++++++++++-- drivers/pci/controller/pcie-cadence.h | 1 + 2 files changed, 124 insertions(+), 6 deletions(-)