genirq/msi: Provide new domain id allocation functions
Provide two sorts of interfaces to handle the different use cases: - msi_domain_alloc_irqs_range(): Handles a caller defined precise range - msi_domain_alloc_irqs_all(): Allocates all interrupts associated to a domain by scanning the allocated MSI descriptors The latter is useful for the existing PCI/MSI support which does not have range information available. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Acked-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20221124230314.396497163@linutronix.de
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