Commit 4d4a0dba authored by Vasant Hegde's avatar Vasant Hegde Committed by Joerg Roedel
Browse files

iommu/amd: Allocate IOMMU irqs using numa locality info 



Use numa information to allocate irq resources and also to set
irq affinity. This optimizes the IOMMU interrupt handling.

Reviewed-by: default avatarSuravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Reviewed-by: default avatarAlexey Kardashevskiy <aik@amd.com>
Signed-off-by: default avatarVasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20230321092348.6127-3-vasant.hegde@amd.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 0d571dcb

drivers/iommu/amd/init.c

+2 −1
Original line number Diff line number Diff line
@@ -2383,6 +2383,7 @@ static int iommu_setup_intcapxt(struct amd_iommu *iommu) 
	struct irq_domain *domain;

	struct irq_alloc_info info;

	int irq, ret;

	int node = dev_to_node(&iommu->dev->dev);



	domain = iommu_get_irqdomain();

	if (!domain)
@@ -2392,7 +2393,7 @@ static int iommu_setup_intcapxt(struct amd_iommu *iommu) 
	info.type = X86_IRQ_ALLOC_TYPE_AMDVI;

	info.data = iommu;



	irq = irq_domain_alloc_irqs(domain, 1, NUMA_NO_NODE, &info);

	irq = irq_domain_alloc_irqs(domain, 1, node, &info);

	if (irq < 0) {

		irq_domain_remove(domain);

		return irq;