iommu/vt-d: Add basic SVM PASID support
This provides basic PASID support for endpoint devices, tested with a
version of the i915 driver.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h
index 7ac17f5..0e114bf 100644
--- a/include/linux/dma_remapping.h
+++ b/include/linux/dma_remapping.h
@@ -20,6 +20,13 @@
#define CONTEXT_TT_MULTI_LEVEL 0
#define CONTEXT_TT_DEV_IOTLB 1
#define CONTEXT_TT_PASS_THROUGH 2
+/* Extended context entry types */
+#define CONTEXT_TT_PT_PASID 4
+#define CONTEXT_TT_PT_PASID_DEV_IOTLB 5
+#define CONTEXT_TT_MASK (7ULL << 2)
+
+#define CONTEXT_PRS (1ULL << 9)
+#define CONTEXT_PASIDE (1ULL << 11)
struct intel_iommu;
struct dmar_domain;