Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (63 commits)
  x86, Calgary IOMMU quirk: Find nearest matching Calgary while walking up the PCI tree
  x86/amd-iommu: Remove amd_iommu_pd_table
  x86/amd-iommu: Move reset_iommu_command_buffer out of locked code
  x86/amd-iommu: Cleanup DTE flushing code
  x86/amd-iommu: Introduce iommu_flush_device() function
  x86/amd-iommu: Cleanup attach/detach_device code
  x86/amd-iommu: Keep devices per domain in a list
  x86/amd-iommu: Add device bind reference counting
  x86/amd-iommu: Use dev->arch->iommu to store iommu related information
  x86/amd-iommu: Remove support for domain sharing
  x86/amd-iommu: Rearrange dma_ops related functions
  x86/amd-iommu: Move some pte allocation functions in the right section
  x86/amd-iommu: Remove iommu parameter from dma_ops_domain_alloc
  x86/amd-iommu: Use get_device_id and check_device where appropriate
  x86/amd-iommu: Move find_protection_domain to helper functions
  x86/amd-iommu: Simplify get_device_resources()
  x86/amd-iommu: Let domain_for_device handle aliases
  x86/amd-iommu: Remove iommu specific handling from dma_ops path
  x86/amd-iommu: Remove iommu parameter from __(un)map_single
  x86/amd-iommu: Make alloc_new_range aware of multiple IOMMUs
  ...

3 files changed, 10 insertions, 6 deletions

diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index ccb1fa89de29..2fb3a480f6b0 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -56,9 +56,8 @@ config AGP_AMD
           X on AMD Irongate, 761, and 762 chipsets.
 
 config AGP_AMD64
-        tristate "AMD Opteron/Athlon64 on-CPU GART support" if !GART_IOMMU
+        tristate "AMD Opteron/Athlon64 on-CPU GART support"
         depends on AGP && X86
-        default y if GART_IOMMU
         help
           This option gives you AGP support for the GLX component of
           X using the on-CPU northbridge of the AMD Athlon64/Opteron CPUs.
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index b952ebc7a78b..416f6ac65b76 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -645,10 +645,13 @@ void __init detect_intel_iommu(void)
                                "x2apic and Intr-remapping.\n");
 #endif
 #ifdef CONFIG_DMAR
-                if (ret && !no_iommu && !iommu_detected && !swiotlb &&
-                    !dmar_disabled)
+                if (ret && !no_iommu && !iommu_detected && !dmar_disabled)
                         iommu_detected = 1;
 #endif
+#ifdef CONFIG_X86
+                if (ret)
+                        x86_init.iommu.iommu_init = intel_iommu_init;
+#endif
         }
         early_acpi_os_unmap_memory(dmar_tbl, dmar_tbl_size);
         dmar_tbl = NULL;
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 1840a0578a42..9261327b49f3 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -3266,7 +3266,7 @@ int __init intel_iommu_init(void)
          * Check the need for DMA-remapping initialization now.
          * Above initialization will also be used by Interrupt-remapping.
          */
-        if (no_iommu || swiotlb || dmar_disabled)
+        if (no_iommu || dmar_disabled)
                 return -ENODEV;
 
         iommu_init_mempool();
@@ -3287,7 +3287,9 @@ int __init intel_iommu_init(void)
         "PCI-DMA: Intel(R) Virtualization Technology for Directed I/O\n");
 
         init_timer(&unmap_timer);
-        force_iommu = 1;
+#ifdef CONFIG_SWIOTLB
+        swiotlb = 0;
+#endif
         dma_ops = &intel_dma_ops;
 
         init_iommu_sysfs();