1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_pt_types.h b/drivers/gpu/drm/xe/xe_pt_types.h
new file mode 100644
index 000000000..cee70cb0f
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_pt_types.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef _XE_PT_TYPES_H_
+#define _XE_PT_TYPES_H_
+
+#include <linux/types.h>
+
+#include "xe_pt_walk.h"
+
+struct xe_bo;
+struct xe_device;
+struct xe_vma;
+
+enum xe_cache_level {
+	XE_CACHE_NONE,
+	XE_CACHE_WT,
+	XE_CACHE_WB,
+	XE_CACHE_NONE_COMPRESSION, /*UC + COH_NONE + COMPRESSION */
+	__XE_CACHE_LEVEL_COUNT,
+};
+
+#define XE_VM_MAX_LEVEL 4
+
+struct xe_pt {
+	struct xe_ptw base;
+	struct xe_bo *bo;
+	unsigned int level;
+	unsigned int num_live;
+	bool rebind;
+	bool is_compact;
+#if IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM)
+	/** addr: Virtual address start address of the PT. */
+	u64 addr;
+#endif
+};
+
+struct xe_pt_ops {
+	u64 (*pte_encode_bo)(struct xe_bo *bo, u64 bo_offset,
+			     u16 pat_index, u32 pt_level);
+	u64 (*pte_encode_vma)(u64 pte, struct xe_vma *vma,
+			      u16 pat_index, u32 pt_level);
+	u64 (*pte_encode_addr)(struct xe_device *xe, u64 addr,
+			       u16 pat_index,
+			       u32 pt_level, bool devmem, u64 flags);
+	u64 (*pde_encode_bo)(struct xe_bo *bo, u64 bo_offset,
+			     u16 pat_index);
+};
+
+struct xe_pt_entry {
+	struct xe_pt *pt;
+	u64 pte;
+};
+
+struct xe_vm_pgtable_update {
+	/** @bo: page table bo to write to */
+	struct xe_bo *pt_bo;
+
+	/** @ofs: offset inside this PTE to begin writing to (in qwords) */
+	u32 ofs;
+
+	/** @qwords: number of PTE's to write */
+	u32 qwords;
+
+	/** @pt: opaque pointer useful for the caller of xe_migrate_update_pgtables */
+	struct xe_pt *pt;
+
+	/** @pt_entries: Newly added pagetable entries */
+	struct xe_pt_entry *pt_entries;
+
+	/** @flags: Target flags */
+	u32 flags;
+};
+
+#endif