diff options
Diffstat (limited to 'drivers/iommu/intel/irq_remapping.c')
| -rw-r--r-- | drivers/iommu/intel/irq_remapping.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c index f58f5f57af78..df9e261af0b5 100644 --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -311,14 +311,12 @@ static int set_ioapic_sid(struct irte *irte, int apic) if (!irte) return -1; - down_read(&dmar_global_lock); for (i = 0; i < MAX_IO_APICS; i++) { if (ir_ioapic[i].iommu && ir_ioapic[i].id == apic) { sid = (ir_ioapic[i].bus << 8) | ir_ioapic[i].devfn; break; } } - up_read(&dmar_global_lock); if (sid == 0) { pr_warn("Failed to set source-id of IOAPIC (%d)\n", apic); @@ -338,14 +336,12 @@ static int set_hpet_sid(struct irte *irte, u8 id) if (!irte) return -1; - down_read(&dmar_global_lock); for (i = 0; i < MAX_HPET_TBS; i++) { if (ir_hpet[i].iommu && ir_hpet[i].id == id) { sid = (ir_hpet[i].bus << 8) | ir_hpet[i].devfn; break; } } - up_read(&dmar_global_lock); if (sid == 0) { pr_warn("Failed to set source-id of HPET block (%d)\n", id); @@ -573,7 +569,8 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu) } irq_domain_update_bus_token(iommu->ir_domain, DOMAIN_BUS_DMAR); - iommu->ir_domain->flags |= IRQ_DOMAIN_FLAG_MSI_PARENT; + iommu->ir_domain->flags |= IRQ_DOMAIN_FLAG_MSI_PARENT | + IRQ_DOMAIN_FLAG_ISOLATED_MSI; if (cap_caching_mode(iommu->cap)) iommu->ir_domain->msi_parent_ops = &virt_dmar_msi_parent_ops; @@ -1338,9 +1335,7 @@ static int intel_irq_remapping_alloc(struct irq_domain *domain, if (!data) goto out_free_parent; - down_read(&dmar_global_lock); index = alloc_irte(iommu, &data->irq_2_iommu, nr_irqs); - up_read(&dmar_global_lock); if (index < 0) { pr_warn("Failed to allocate IRTE\n"); kfree(data); |