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020c312658
With the new stacked irq domains, it becomes pretty tempting to allocate an MSI domain per PCI bus, which would remove the requirement of either relying on arch-specific code, or a default PCI MSI domain. By allowing the msi_controller structure to carry a pointer to an irq_domain, we can easily use this in pci_msi_setup_msi_irqs. The existing code can still be used as a fallback if the MSI driver does not populate the domain field. Tested on arm64 with the GICv3 ITS driver. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Yingjoe Chen <yingjoe.chen@mediatek.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Jiang Liu <jiang.liu@linux.intel.com> Link: http://lkml.kernel.org/r/1416048553-29289-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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