1 files changed, 136 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_svm.h b/drivers/gpu/drm/xe/xe_svm.h
index 30fc78b85b30..da9a69ea0bb1 100644
--- a/drivers/gpu/drm/xe/xe_svm.h
+++ b/drivers/gpu/drm/xe/xe_svm.h
@@ -70,6 +70,26 @@ int xe_svm_bo_evict(struct xe_bo *bo);
 
 void xe_svm_range_debug(struct xe_svm_range *range, const char *operation);
 
+int xe_svm_alloc_vram(struct xe_tile *tile, struct xe_svm_range *range,
+		      const struct drm_gpusvm_ctx *ctx);
+
+struct xe_svm_range *xe_svm_range_find_or_insert(struct xe_vm *vm, u64 addr,
+						 struct xe_vma *vma, struct drm_gpusvm_ctx *ctx);
+
+int xe_svm_range_get_pages(struct xe_vm *vm, struct xe_svm_range *range,
+			   struct drm_gpusvm_ctx *ctx);
+
+bool xe_svm_range_needs_migrate_to_vram(struct xe_svm_range *range, struct xe_vma *vma,
+					bool preferred_region_is_vram);
+
+void xe_svm_range_migrate_to_smem(struct xe_vm *vm, struct xe_svm_range *range);
+
+bool xe_svm_range_validate(struct xe_vm *vm,
+			   struct xe_svm_range *range,
+			   u8 tile_mask, bool devmem_preferred);
+
+u64 xe_svm_find_vma_start(struct xe_vm *vm, u64 addr, u64 end,  struct xe_vma *vma);
+
 /**
  * xe_svm_range_has_dma_mapping() - SVM range has DMA mapping
  * @range: SVM range
@@ -82,6 +102,53 @@ static inline bool xe_svm_range_has_dma_mapping(struct xe_svm_range *range)
 	return range->base.flags.has_dma_mapping;
 }
 
+/**
+ * to_xe_range - Convert a drm_gpusvm_range pointer to a xe_svm_range
+ * @r: Pointer to the drm_gpusvm_range structure
+ *
+ * This function takes a pointer to a drm_gpusvm_range structure and
+ * converts it to a pointer to the containing xe_svm_range structure.
+ *
+ * Return: Pointer to the xe_svm_range structure
+ */
+static inline struct xe_svm_range *to_xe_range(struct drm_gpusvm_range *r)
+{
+	return container_of(r, struct xe_svm_range, base);
+}
+
+/**
+ * xe_svm_range_start() - SVM range start address
+ * @range: SVM range
+ *
+ * Return: start address of range.
+ */
+static inline unsigned long xe_svm_range_start(struct xe_svm_range *range)
+{
+	return drm_gpusvm_range_start(&range->base);
+}
+
+/**
+ * xe_svm_range_end() - SVM range end address
+ * @range: SVM range
+ *
+ * Return: end address of range.
+ */
+static inline unsigned long xe_svm_range_end(struct xe_svm_range *range)
+{
+	return drm_gpusvm_range_end(&range->base);
+}
+
+/**
+ * xe_svm_range_size() - SVM range size
+ * @range: SVM range
+ *
+ * Return: Size of range.
+ */
+static inline unsigned long xe_svm_range_size(struct xe_svm_range *range)
+{
+	return drm_gpusvm_range_size(&range->base);
+}
+
 #define xe_svm_assert_in_notifier(vm__) \
 	lockdep_assert_held_write(&(vm__)->svm.gpusvm.notifier_lock)
 
@@ -97,6 +164,8 @@ void xe_svm_flush(struct xe_vm *vm);
 #include <linux/interval_tree.h>
 
 struct drm_pagemap_device_addr;
+struct drm_gpusvm_ctx;
+struct drm_gpusvm_range;
 struct xe_bo;
 struct xe_gt;
 struct xe_vm;
@@ -167,6 +236,73 @@ void xe_svm_range_debug(struct xe_svm_range *range, const char *operation)
 {
 }
 
+static inline int
+xe_svm_alloc_vram(struct xe_tile *tile, struct xe_svm_range *range,
+		  const struct drm_gpusvm_ctx *ctx)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline
+struct xe_svm_range *xe_svm_range_find_or_insert(struct xe_vm *vm, u64 addr,
+						 struct xe_vma *vma, struct drm_gpusvm_ctx *ctx)
+{
+	return ERR_PTR(-EINVAL);
+}
+
+static inline
+int xe_svm_range_get_pages(struct xe_vm *vm, struct xe_svm_range *range,
+			   struct drm_gpusvm_ctx *ctx)
+{
+	return -EINVAL;
+}
+
+static inline struct xe_svm_range *to_xe_range(struct drm_gpusvm_range *r)
+{
+	return NULL;
+}
+
+static inline unsigned long xe_svm_range_start(struct xe_svm_range *range)
+{
+	return 0;
+}
+
+static inline unsigned long xe_svm_range_end(struct xe_svm_range *range)
+{
+	return 0;
+}
+
+static inline unsigned long xe_svm_range_size(struct xe_svm_range *range)
+{
+	return 0;
+}
+
+static inline
+bool xe_svm_range_needs_migrate_to_vram(struct xe_svm_range *range, struct xe_vma *vma,
+					u32 region)
+{
+	return false;
+}
+
+static inline
+void xe_svm_range_migrate_to_smem(struct xe_vm *vm, struct xe_svm_range *range)
+{
+}
+
+static inline
+bool xe_svm_range_validate(struct xe_vm *vm,
+			   struct xe_svm_range *range,
+			   u8 tile_mask, bool devmem_preferred)
+{
+	return false;
+}
+
+static inline
+u64 xe_svm_find_vma_start(struct xe_vm *vm, u64 addr, u64 end, struct xe_vma *vma)
+{
+	return ULONG_MAX;
+}
+
 #define xe_svm_assert_in_notifier(...) do {} while (0)
 #define xe_svm_range_has_dma_mapping(...) false