include/linux/irqdomain.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3  * irq_domain - IRQ translation domains
38 #include <linux/radix-tree.h>
54  * struct irq_fwspec - generic IRQ specifier structure
56  * @fwnode:		Pointer to a firmware-specific descriptor
57  * @param_count:	Number of device-specific parameters
58  * @param:		Device-specific parameters
61  * pass a device-specific description of an interrupt.
74  * struct irq_domain_ops - Methods for irq_domain objects
80  * @xlate: Given a device tree node and interrupt specifier, decode
120  * struct irq_domain - Hardware interrupt number translation object
129  * @root:	Pointer to root domain, or containing structure if non-hierarchical
143  * @msi_parent_ops: Pointer to MSI parent domain methods for per device domain init
198 	 * Irq domain implements isolated MSI, see msi_device_has_isolated_msi()
205 	/* Irq domain is a MSI parent domain */
208 	/* Irq domain is a MSI device domain */
221 	return to_of_node(d->fwnode);  in irq_domain_get_of_node()
228 		d->pm_dev = dev;  in irq_domain_set_pm_device()
291 	return node ? &node->fwnode : NULL;  in of_node_to_fwnode()
298 	return fwnode && fwnode->ops == &irqchip_fwnode_ops;  in is_fwnode_irqchip()
342  * irq_domain_add_linear() - Allocate and register a linear revmap irq_domain.
421  * irq_find_mapping() - Find a linux irq from a hw irq number.
507 	return __irq_domain_alloc_irqs(domain, -1, nr_irqs, node, arg, false,  in irq_domain_alloc_irqs()
541 	return domain->flags & IRQ_DOMAIN_FLAG_HIERARCHY;  in irq_domain_is_hierarchy()
546 	return domain->flags &  in irq_domain_is_ipi()
552 	return domain->flags & IRQ_DOMAIN_FLAG_IPI_PER_CPU;  in irq_domain_is_ipi_per_cpu()
557 	return domain->flags & IRQ_DOMAIN_FLAG_IPI_SINGLE;  in irq_domain_is_ipi_single()
562 	return domain->flags & IRQ_DOMAIN_FLAG_MSI;  in irq_domain_is_msi()
567 	return domain->flags & IRQ_DOMAIN_FLAG_MSI_PARENT;  in irq_domain_is_msi_parent()
572 	return domain->flags & IRQ_DOMAIN_FLAG_MSI_DEVICE;  in irq_domain_is_msi_device()
579 	return -1;  in irq_domain_alloc_irqs()