[Patch Part1 v7 19/38] iommu/vt-d: Refine the interfaces to create IRQ for DMAR unit

Refine the interfaces to create IRQ for DMAR unit. It's a preparation for converting DMAR IRQ to hierarchy irqdomain on x86. It also moves dmar_alloc_hwirq()/dmar_free_hwirq() from irq_remapping.h to dmar.h. They are not irq_remapping specific. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk

[Patch Part1 v7 19/38] iommu/vt-d: Refine the interfaces to create IRQ for DMAR unit

Refine the interfaces to create IRQ for DMAR unit. It's a preparation for converting DMAR IRQ to hierarchy irqdomain on x86. It also moves dmar_alloc_hwirq()/dmar_free_hwirq() from irq_remapping.h to dmar.h. They are not irq_remapping specific. Signed-off-by: Jiang Liu jiang@linux.intel.com