Merge branches 'core/iommu', 'x86/amd-iommu' and 'x86/iommu' into x86-v28-for-linus-phase3-B

Conflicts:
	arch/x86/kernel/pci-gart_64.c
	include/asm-x86/dma-mapping.h

Documentation/kernel-parameters.txt

@@ -284,6 +284,11 @@ and is between 256 and 4096 characters. It is defined in the file
 			isolate - enable device isolation (each device, as far
 			          as possible, will get its own protection
 			          domain)
+			fullflush - enable flushing of IO/TLB entries when
+				    they are unmapped. Otherwise they are
+				    flushed before they will be reused, which
+				    is a lot of faster
+
 	amd_iommu_size= [HW,X86-64]
 			Define the size of the aperture for the AMD IOMMU
 			driver. Possible values are: