drm/intel: add shared step.h and switch i915 to use it

As the first step towards using shared definitions for step name
enumerations, add shared include/drm/intel/step.h and switch i915 to use
it.

Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patch.msgid.link/e76412a316ddff44dc46633d80e9caa5df54ed6b.1773663208.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/intel_step.h b/drivers/gpu/drm/i915/intel_step.h
index 22f1d690516005cffeac442a7595d6ae99d71453..2ca36eae4b5a689f4853d7ae0e5ed9ec00cb5255 100644 (file)
--- a/drivers/gpu/drm/i915/intel_step.h
+++ b/drivers/gpu/drm/i915/intel_step.h
@@ -8,6 +8,8 @@
 
 #include <linux/types.h>
 
+#include <drm/intel/step.h>
+
 struct drm_i915_private;
 
 struct intel_step_info {
@@ -19,61 +21,6 @@ struct intel_step_info {
        u8 media_step;
 };
 
-#define STEP_ENUM_VAL(name)  STEP_##name,
-
-#define STEP_NAME_LIST(func)           \
-       func(A0)                        \
-       func(A1)                        \
-       func(A2)                        \
-       func(A3)                        \
-       func(B0)                        \
-       func(B1)                        \
-       func(B2)                        \
-       func(B3)                        \
-       func(C0)                        \
-       func(C1)                        \
-       func(C2)                        \
-       func(C3)                        \
-       func(D0)                        \
-       func(D1)                        \
-       func(D2)                        \
-       func(D3)                        \
-       func(E0)                        \
-       func(E1)                        \
-       func(E2)                        \
-       func(E3)                        \
-       func(F0)                        \
-       func(F1)                        \
-       func(F2)                        \
-       func(F3)                        \
-       func(G0)                        \
-       func(G1)                        \
-       func(G2)                        \
-       func(G3)                        \
-       func(H0)                        \
-       func(H1)                        \
-       func(H2)                        \
-       func(H3)                        \
-       func(I0)                        \
-       func(I1)                        \
-       func(I2)                        \
-       func(I3)                        \
-       func(J0)                        \
-       func(J1)                        \
-       func(J2)                        \
-       func(J3)
-
-/*
- * 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_NAME_LIST(STEP_ENUM_VAL)
-       STEP_FUTURE,
-       STEP_FOREVER,
-};
-
 void intel_step_init(struct drm_i915_private *i915);
 const char *intel_step_name(enum intel_step step);
 

diff --git a/include/drm/intel/step.h b/include/drm/intel/step.h
new file mode 100644 (file)
index 0000000..4de7520
--- /dev/null
+++ b/include/drm/intel/step.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2026 Intel Corporation */
+
+#ifndef __STEP_H__
+#define __STEP_H__
+
+#define STEP_ENUM_VAL(name)  STEP_##name,
+
+#define STEP_NAME_LIST(func)           \
+       func(A0)                        \
+       func(A1)                        \
+       func(A2)                        \
+       func(A3)                        \
+       func(B0)                        \
+       func(B1)                        \
+       func(B2)                        \
+       func(B3)                        \
+       func(C0)                        \
+       func(C1)                        \
+       func(C2)                        \
+       func(C3)                        \
+       func(D0)                        \
+       func(D1)                        \
+       func(D2)                        \
+       func(D3)                        \
+       func(E0)                        \
+       func(E1)                        \
+       func(E2)                        \
+       func(E3)                        \
+       func(F0)                        \
+       func(F1)                        \
+       func(F2)                        \
+       func(F3)                        \
+       func(G0)                        \
+       func(G1)                        \
+       func(G2)                        \
+       func(G3)                        \
+       func(H0)                        \
+       func(H1)                        \
+       func(H2)                        \
+       func(H3)                        \
+       func(I0)                        \
+       func(I1)                        \
+       func(I2)                        \
+       func(I3)                        \
+       func(J0)                        \
+       func(J1)                        \
+       func(J2)                        \
+       func(J3)
+
+/*
+ * 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_NAME_LIST(STEP_ENUM_VAL)
+       STEP_FUTURE,
+       STEP_FOREVER,
+};
+
+#endif /* __STEP_H__ */