1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.h b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.h
new file mode 100644
index 000000000000..25ed67a31571
--- /dev/null
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#ifndef _I915_GEM_TTM_PM_H_
+#define _I915_GEM_TTM_PM_H_
+
+#include <linux/types.h>
+
+struct intel_memory_region;
+struct drm_i915_gem_object;
+
+#define I915_TTM_BACKUP_ALLOW_GPU BIT(0)
+#define I915_TTM_BACKUP_PINNED    BIT(1)
+
+int i915_ttm_backup_region(struct intel_memory_region *mr, u32 flags);
+
+void i915_ttm_recover_region(struct intel_memory_region *mr);
+
+int i915_ttm_restore_region(struct intel_memory_region *mr, u32 flags);
+
+/* Internal I915 TTM functions below. */
+void i915_ttm_backup_free(struct drm_i915_gem_object *obj);
+
+#endif