1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_stolen.h b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_stolen.h
new file mode 100644
index 000000000000..cb6c7598824b
--- /dev/null
+++ b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_stolen.h
@@ -0,0 +1,87 @@
+#ifndef _I915_GEM_STOLEN_H_
+#define _I915_GEM_STOLEN_H_
+
+#include "xe_ttm_stolen_mgr.h"
+#include "xe_res_cursor.h"
+
+struct xe_bo;
+
+struct i915_stolen_fb {
+	struct xe_bo *bo;
+};
+
+static inline int i915_gem_stolen_insert_node_in_range(struct xe_device *xe,
+						       struct i915_stolen_fb *fb,
+						       u32 size, u32 align,
+						       u32 start, u32 end)
+{
+	struct xe_bo *bo;
+	int err;
+	u32 flags = XE_BO_FLAG_PINNED | XE_BO_FLAG_STOLEN;
+
+	if (start < SZ_4K)
+		start = SZ_4K;
+
+	if (align) {
+		size = ALIGN(size, align);
+		start = ALIGN(start, align);
+	}
+
+	bo = xe_bo_create_locked_range(xe, xe_device_get_root_tile(xe),
+				       NULL, size, start, end,
+				       ttm_bo_type_kernel, flags);
+	if (IS_ERR(bo)) {
+		err = PTR_ERR(bo);
+		bo = NULL;
+		return err;
+	}
+	err = xe_bo_pin(bo);
+	xe_bo_unlock_vm_held(bo);
+
+	if (err) {
+		xe_bo_put(fb->bo);
+		bo = NULL;
+	}
+
+	fb->bo = bo;
+
+	return err;
+}
+
+static inline int i915_gem_stolen_insert_node(struct xe_device *xe,
+					      struct i915_stolen_fb *fb,
+					      u32 size, u32 align)
+{
+	/* Not used on xe */
+	BUG_ON(1);
+	return -ENODEV;
+}
+
+static inline void i915_gem_stolen_remove_node(struct xe_device *xe,
+					       struct i915_stolen_fb *fb)
+{
+	xe_bo_unpin_map_no_vm(fb->bo);
+	fb->bo = NULL;
+}
+
+#define i915_gem_stolen_initialized(xe) (!!ttm_manager_type(&(xe)->ttm, XE_PL_STOLEN))
+#define i915_gem_stolen_node_allocated(fb) (!!((fb)->bo))
+
+static inline u32 i915_gem_stolen_node_offset(struct i915_stolen_fb *fb)
+{
+	struct xe_res_cursor res;
+
+	xe_res_first(fb->bo->ttm.resource, 0, 4096, &res);
+	return res.start;
+}
+
+/* Used for < gen4. These are not supported by Xe */
+#define i915_gem_stolen_area_address(xe) (!WARN_ON(1))
+/* Used for gen9 specific WA. Gen9 is not supported by Xe */
+#define i915_gem_stolen_area_size(xe) (!WARN_ON(1))
+
+#define i915_gem_stolen_node_address(xe, fb) (xe_ttm_stolen_gpu_offset(xe) + \
+					 i915_gem_stolen_node_offset(fb))
+#define i915_gem_stolen_node_size(fb) ((u64)((fb)->bo->ttm.base.size))
+
+#endif