1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2020,2021 Intel Corporation
 4 */
 5
 6#ifndef __INTEL_STEP_H__
 7#define __INTEL_STEP_H__
 8
 9#include <linux/types.h>
10
11struct drm_i915_private;
12
13struct intel_step_info {
14	u8 gt_step;
15	u8 display_step;
16};
17
18/*
19 * Symbolic steppings that do not match the hardware. These are valid both as gt
20 * and display steppings as symbolic names.
21 */
22enum intel_step {
23	STEP_NONE = 0,
24	STEP_A0,
25	STEP_A2,
26	STEP_B0,
27	STEP_B1,
28	STEP_C0,
29	STEP_D0,
30	STEP_D1,
31	STEP_E0,
32	STEP_F0,
33	STEP_G0,
34	STEP_FUTURE,
35	STEP_FOREVER,
36};
37
38void intel_step_init(struct drm_i915_private *i915);
39
40#endif /* __INTEL_STEP_H__ */