1 files changed, 19 insertions, 15 deletions

diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 0a19708074c2..3dc9befa5aec 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -36,6 +36,7 @@
 #include <linux/tboot.h>
 #include <linux/dmi.h>
 #include <linux/slab.h>
+#include <asm/iommu_table.h>
 
 #define PREFIX "DMAR: "
 
@@ -687,7 +688,7 @@ failed:
         return 0;
 }
 
-void __init detect_intel_iommu(void)
+int __init detect_intel_iommu(void)
 {
         int ret;
 
@@ -697,12 +698,7 @@ void __init detect_intel_iommu(void)
         {
 #ifdef CONFIG_INTR_REMAP
                 struct acpi_table_dmar *dmar;
-                /*
-                 * for now we will disable dma-remapping when interrupt
-                 * remapping is enabled.
-                 * When support for queued invalidation for IOTLB invalidation
-                 * is added, we will not need this any more.
-                 */
+
                 dmar = (struct acpi_table_dmar *) dmar_tbl;
                 if (ret && cpu_has_x2apic && dmar->flags & 0x1)
                         printk(KERN_INFO
@@ -723,6 +719,8 @@ void __init detect_intel_iommu(void)
         }
         early_acpi_os_unmap_memory(dmar_tbl, dmar_tbl_size);
         dmar_tbl = NULL;
+
+        return ret ? 1 : -ENODEV;
 }
 
 
@@ -1221,9 +1219,9 @@ const char *dmar_get_fault_reason(u8 fault_reason, int *fault_type)
         }
 }
 
-void dmar_msi_unmask(unsigned int irq)
+void dmar_msi_unmask(struct irq_data *data)
 {
-        struct intel_iommu *iommu = get_irq_data(irq);
+        struct intel_iommu *iommu = irq_data_get_irq_handler_data(data);
         unsigned long flag;
 
         /* unmask it */
@@ -1234,10 +1232,10 @@ void dmar_msi_unmask(unsigned int irq)
         spin_unlock_irqrestore(&iommu->register_lock, flag);
 }
 
-void dmar_msi_mask(unsigned int irq)
+void dmar_msi_mask(struct irq_data *data)
 {
         unsigned long flag;
-        struct intel_iommu *iommu = get_irq_data(irq);
+        struct intel_iommu *iommu = irq_data_get_irq_handler_data(data);
 
         /* mask it */
         spin_lock_irqsave(&iommu->register_lock, flag);
@@ -1249,7 +1247,7 @@ void dmar_msi_mask(unsigned int irq)
 
 void dmar_msi_write(int irq, struct msi_msg *msg)
 {
-        struct intel_iommu *iommu = get_irq_data(irq);
+        struct intel_iommu *iommu = irq_get_handler_data(irq);
         unsigned long flag;
 
         spin_lock_irqsave(&iommu->register_lock, flag);
@@ -1261,7 +1259,7 @@ void dmar_msi_write(int irq, struct msi_msg *msg)
 
 void dmar_msi_read(int irq, struct msi_msg *msg)
 {
-        struct intel_iommu *iommu = get_irq_data(irq);
+        struct intel_iommu *iommu = irq_get_handler_data(irq);
         unsigned long flag;
 
         spin_lock_irqsave(&iommu->register_lock, flag);
@@ -1379,12 +1377,12 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
                 return -EINVAL;
         }
 
-        set_irq_data(irq, iommu);
+        irq_set_handler_data(irq, iommu);
         iommu->irq = irq;
 
         ret = arch_setup_dmar_msi(irq);
         if (ret) {
-                set_irq_data(irq, NULL);
+                irq_set_handler_data(irq, NULL);
                 iommu->irq = 0;
                 destroy_irq(irq);
                 return ret;
@@ -1414,6 +1412,11 @@ int __init enable_drhd_fault_handling(void)
                                (unsigned long long)drhd->reg_base_addr, ret);
                         return -1;
                 }
+
+                /*
+                 * Clear any previous faults.
+                 */
+                dmar_fault(iommu->irq, iommu);
         }
 
         return 0;
@@ -1455,3 +1458,4 @@ int __init dmar_ir_support(void)
                 return 0;
         return dmar->flags & 0x1;
 }
+IOMMU_INIT_POST(detect_intel_iommu);