1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_step.h b/drivers/gpu/drm/i915/intel_step.h
new file mode 100644
index 000000000000..958a8bb5d677
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_step.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020,2021 Intel Corporation
+ */
+
+#ifndef __INTEL_STEP_H__
+#define __INTEL_STEP_H__
+
+#include <linux/types.h>
+
+struct drm_i915_private;
+
+struct intel_step_info {
+	u8 gt_step;
+	u8 display_step;
+};
+
+/*
+ * Symbolic steppings that do not match the hardware. These are valid both as gt
+ * and display steppings as symbolic names.
+ */
+enum intel_step {
+	STEP_NONE = 0,
+	STEP_A0,
+	STEP_A2,
+	STEP_B0,
+	STEP_B1,
+	STEP_C0,
+	STEP_D0,
+	STEP_D1,
+	STEP_E0,
+	STEP_F0,
+	STEP_G0,
+	STEP_FUTURE,
+	STEP_FOREVER,
+};
+
+void intel_step_init(struct drm_i915_private *i915);
+
+#endif /* __INTEL_STEP_H__ */