From 667724c5a3109675cf3bfe7d75795b8608d1bcbe Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 20 Jun 2017 01:37:10 +0200 Subject: x86/msi: Provide new iommu irqdomain interface Provide a new interface for creating the iommu remapping domains, so that the caller can supply a name and a id in order to create named irqdomains. Signed-off-by: Thomas Gleixner Cc: Jens Axboe Cc: Marc Zyngier Cc: Michael Ellerman Cc: Joerg Roedel Cc: Keith Busch Cc: Peter Zijlstra Cc: iommu@lists.linux-foundation.org Cc: Christoph Hellwig Link: http://lkml.kernel.org/r/20170619235443.986661206@linutronix.de Signed-off-by: Thomas Gleixner --- arch/x86/kernel/apic/msi.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'arch/x86/kernel/apic') 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 -- cgit v1.2.3