LXR linux/drivers/gpu/drm/i915/intel

   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#define STEP_ENUM_VAL(name)  STEP_##name,
  19
  20#define STEP_NAME_LIST(func)            \
  21        func(A0)                        \
  22        func(A1)                        \
  23        func(A2)                        \
  24        func(B0)                        \
  25        func(B1)                        \
  26        func(B2)                        \
  27        func(C0)                        \
  28        func(C1)                        \
  29        func(D0)                        \
  30        func(D1)                        \
  31        func(E0)                        \
  32        func(F0)                        \
  33        func(G0)                        \
  34        func(H0)                        \
  35        func(I0)                        \
  36        func(I1)                        \
  37        func(J0)
  38
  39/*
  40 * Symbolic steppings that do not match the hardware. These are valid both as gt
  41 * and display steppings as symbolic names.
  42 */
  43enum intel_step {
  44        STEP_NONE = 0,
  45        STEP_NAME_LIST(STEP_ENUM_VAL)
  46        STEP_FUTURE,
  47        STEP_FOREVER,
  48};
  49
  50void intel_step_init(struct drm_i915_private *i915);
  51const char *intel_step_name(enum intel_step step);
  52
  53#endif /* __INTEL_STEP_H__ */
  54