drivers/gpu/drm/i915/intel_step.h

   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
  11 struct drm_i915_private;
  12
  13 struct 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  */
  43 enum intel_step {
  44         STEP_NONE = 0,
  45         STEP_NAME_LIST(STEP_ENUM_VAL)
  46         STEP_FUTURE,
  47         STEP_FOREVER,
  48 };
  49
  50 void intel_step_init(struct drm_i915_private *i915);
  51 const char *intel_step_name(enum intel_step step);
  52
  53 #endif /* __INTEL_STEP_H__ */