diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/irq_remapping.h | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/msi.c | 15 |
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h index a210eba2727c..039867558ed4 100644 --- a/arch/x86/include/asm/irq_remapping.h +++ b/arch/x86/include/asm/irq_remapping.h @@ -56,6 +56,8 @@ irq_remapping_get_irq_domain(struct irq_alloc_info *info); /* Create PCI MSI/MSIx irqdomain, use @parent as the parent irqdomain. */ extern struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent); +extern struct irq_domain * +arch_create_remap_msi_irq_domain(struct irq_domain *par, const char *n, int id); /* Get parent irqdomain for interrupt remapping irqdomain */ static inline struct irq_domain *arch_get_ir_parent_domain(void) diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index c61aec7e65f4..0e6618e2e589 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -167,10 +167,25 @@ static struct msi_domain_info pci_msi_ir_domain_info = { .handler_name = "edge", }; +struct irq_domain *arch_create_remap_msi_irq_domain(struct irq_domain *parent, + const char *name, int id) +{ + struct fwnode_handle *fn; + struct irq_domain *d; + + fn = irq_domain_alloc_named_id_fwnode(name, id); + if (!fn) + return NULL; + d = pci_msi_create_irq_domain(fn, &pci_msi_ir_domain_info, parent); + irq_domain_free_fwnode(fn); + return d; +} + struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent) { return pci_msi_create_irq_domain(NULL, &pci_msi_ir_domain_info, parent); } + #endif #ifdef CONFIG_DMAR_TABLE |