diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel_irq_remapping.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index 97ea4209fc8d..71a25aeee203 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -145,44 +145,6 @@ static int qi_flush_iec(struct intel_iommu *iommu, int index, int mask) return qi_submit_sync(&desc, iommu); } -static int map_irq_to_irte_handle(int irq, u16 *sub_handle) -{ - struct irq_2_iommu *irq_iommu = irq_2_iommu(irq); - unsigned long flags; - int index; - - if (!irq_iommu) - return -1; - - raw_spin_lock_irqsave(&irq_2_ir_lock, flags); - *sub_handle = irq_iommu->sub_handle; - index = irq_iommu->irte_index; - raw_spin_unlock_irqrestore(&irq_2_ir_lock, flags); - return index; -} - -static int set_irte_irq(int irq, struct intel_iommu *iommu, u16 index, u16 subhandle) -{ - struct irq_2_iommu *irq_iommu = irq_2_iommu(irq); - struct irq_cfg *cfg = irq_cfg(irq); - unsigned long flags; - - if (!irq_iommu) - return -1; - - raw_spin_lock_irqsave(&irq_2_ir_lock, flags); - - cfg->remapped = 1; - irq_iommu->iommu = iommu; - irq_iommu->irte_index = index; - irq_iommu->sub_handle = subhandle; - irq_iommu->irte_mask = 0; - - raw_spin_unlock_irqrestore(&irq_2_ir_lock, flags); - - return 0; -} - static int modify_irte(struct irq_2_iommu *irq_iommu, struct irte *irte_modified) { @@ -1127,108 +1089,6 @@ intel_ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask, return 0; } -static void intel_compose_msi_msg(struct pci_dev *pdev, - unsigned int irq, unsigned int dest, - struct msi_msg *msg, u8 hpet_id) -{ - struct irq_cfg *cfg; - struct irte irte; - u16 sub_handle = 0; - int ir_index; - - cfg = irq_cfg(irq); - - ir_index = map_irq_to_irte_handle(irq, &sub_handle); - BUG_ON(ir_index == -1); - - prepare_irte(&irte, cfg->vector, dest); - - /* Set source-id of interrupt request */ - if (pdev) - set_msi_sid(&irte, pdev); - else - set_hpet_sid(&irte, hpet_id); - - modify_irte(irq_2_iommu(irq), &irte); - - msg->address_hi = MSI_ADDR_BASE_HI; - msg->data = sub_handle; - msg->address_lo = MSI_ADDR_BASE_LO | MSI_ADDR_IR_EXT_INT | - MSI_ADDR_IR_SHV | - MSI_ADDR_IR_INDEX1(ir_index) | - MSI_ADDR_IR_INDEX2(ir_index); -} - -/* - * Map the PCI dev to the corresponding remapping hardware unit - * and allocate 'nvec' consecutive interrupt-remapping table entries - * in it. - */ -static int intel_msi_alloc_irq(struct pci_dev *dev, int irq, int nvec) -{ - struct intel_iommu *iommu; - int index; - - down_read(&dmar_global_lock); - iommu = map_dev_to_ir(dev); - if (!iommu) { - printk(KERN_ERR - "Unable to map PCI %s to iommu\n", pci_name(dev)); - index = -ENOENT; - } else { - index = alloc_irte(iommu, irq, irq_2_iommu(irq), nvec); - if (index < 0) { - printk(KERN_ERR - "Unable to allocate %d IRTE for PCI %s\n", - nvec, pci_name(dev)); - index = -ENOSPC; - } - } - up_read(&dmar_global_lock); - - return index; -} - -static int intel_msi_setup_irq(struct pci_dev *pdev, unsigned int irq, - int index, int sub_handle) -{ - struct intel_iommu *iommu; - int ret = -ENOENT; - - down_read(&dmar_global_lock); - iommu = map_dev_to_ir(pdev); - if (iommu) { - /* - * setup the mapping between the irq and the IRTE - * base index, the sub_handle pointing to the - * appropriate interrupt remap table entry. - */ - set_irte_irq(irq, iommu, index, sub_handle); - ret = 0; - } - up_read(&dmar_global_lock); - - return ret; -} - -static int intel_alloc_hpet_msi(unsigned int irq, unsigned int id) -{ - int ret = -1; - struct intel_iommu *iommu; - int index; - - down_read(&dmar_global_lock); - iommu = map_hpet_to_ir(id); - if (iommu) { - index = alloc_irte(iommu, irq, irq_2_iommu(irq), 1); - if (index >= 0) - ret = 0; - } - up_read(&dmar_global_lock); - - return ret; -} - static struct irq_domain *intel_get_ir_irq_domain(struct irq_alloc_info *info) { struct intel_iommu *iommu = NULL; @@ -1285,10 +1145,6 @@ struct irq_remap_ops intel_irq_remap_ops = { .setup_ioapic_entry = intel_setup_ioapic_entry, .set_affinity = intel_ioapic_set_affinity, .free_irq = free_irte, - .compose_msi_msg = intel_compose_msi_msg, - .msi_alloc_irq = intel_msi_alloc_irq, - .msi_setup_irq = intel_msi_setup_irq, - .alloc_hpet_msi = intel_alloc_hpet_msi, .get_ir_irq_domain = intel_get_ir_irq_domain, .get_irq_domain = intel_get_irq_domain, }; |