[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/iommu/intel-pasid.h b/src/kernel/linux/v4.19/drivers/iommu/intel-pasid.h
new file mode 100644
index 0000000..1fb5e12
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/iommu/intel-pasid.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * intel-pasid.h - PASID idr, table and entry header
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Author: Lu Baolu <baolu.lu@linux.intel.com>
+ */
+
+#ifndef __INTEL_PASID_H
+#define __INTEL_PASID_H
+
+#define PASID_MIN 0x1
+#define PASID_MAX 0x20000
+
+struct pasid_entry {
+ u64 val;
+};
+
+/* The representative of a PASID table */
+struct pasid_table {
+ void *table; /* pasid table pointer */
+ int order; /* page order of pasid table */
+ int max_pasid; /* max pasid */
+ struct list_head dev; /* device list */
+};
+
+extern u32 intel_pasid_max_id;
+int intel_pasid_alloc_id(void *ptr, int start, int end, gfp_t gfp);
+void intel_pasid_free_id(int pasid);
+void *intel_pasid_lookup_id(int pasid);
+int intel_pasid_alloc_table(struct device *dev);
+void intel_pasid_free_table(struct device *dev);
+struct pasid_table *intel_pasid_get_table(struct device *dev);
+int intel_pasid_get_dev_max_id(struct device *dev);
+struct pasid_entry *intel_pasid_get_entry(struct device *dev, int pasid);
+void intel_pasid_clear_entry(struct device *dev, int pasid);
+
+#endif /* __INTEL_PASID_H */