diff options
Diffstat (limited to 'drivers/pci/intr_remapping.c')
| -rw-r--r-- | drivers/pci/intr_remapping.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c index 2cc3f70..3b36586 100644 --- a/drivers/pci/intr_remapping.c +++ b/drivers/pci/intr_remapping.c @@ -57,15 +57,12 @@ static struct irq_2_iommu *irq_2_iommu(unsigned int irq) return desc->irq_2_iommu; } -static struct irq_2_iommu *irq_2_iommu_alloc_node(unsigned int irq, int node) +static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq) { struct irq_desc *desc; struct irq_2_iommu *irq_iommu; - /* - * alloc irq desc if not allocated already. - */ - desc = irq_to_desc_alloc_node(irq, node); + desc = irq_to_desc(irq); if (!desc) { printk(KERN_INFO "can not get irq_desc for %d\n", irq); return NULL; @@ -74,16 +71,11 @@ static struct irq_2_iommu *irq_2_iommu_alloc_node(unsigned int irq, int node) irq_iommu = desc->irq_2_iommu; if (!irq_iommu) - desc->irq_2_iommu = get_one_free_irq_2_iommu(node); + desc->irq_2_iommu = get_one_free_irq_2_iommu(irq_node(irq)); return desc->irq_2_iommu; } -static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq) -{ - return irq_2_iommu_alloc_node(irq, cpu_to_node(boot_cpu_id)); -} - #else /* !CONFIG_SPARSE_IRQ */ static struct irq_2_iommu irq_2_iommuX[NR_IRQS]; @@ -653,6 +645,9 @@ int __init intr_remapping_supported(void) if (disable_intremap) return 0; + if (!dmar_ir_support()) + return 0; + for_each_drhd_unit(drhd) { struct intel_iommu *iommu = drhd->iommu; @@ -668,6 +663,11 @@ int __init enable_intr_remapping(int eim) struct dmar_drhd_unit *drhd; int setup = 0; + if (parse_ioapics_under_ir() != 1) { + printk(KERN_INFO "Not enable interrupt remapping\n"); + return -1; + } + for_each_drhd_unit(drhd) { struct intel_iommu *iommu = drhd->iommu; |