[CI,1/4] drm/i915/step: Add macro magic for handling steps

Commit Message

Srivatsa, Anusha July 21, 2021, 9:52 p.m. UTC

With the addition of stepping info for
all platforms, lets use macros for handling them
and autogenerating code for all steps at a time.

Suggested-by: Matt Roper <[e-mail]>
Cc: Lucas De Marchi <[e-mail]>
Signed-off-by: Anusha Srivatsa <[e-mail]>
Reviewed-by: Lucas De Marchi <[e-mail]>
---
 drivers/gpu/drm/i915/intel_step.c | 14 ++++++++++++
 drivers/gpu/drm/i915/intel_step.h | 38 +++++++++++++++++++------------
 2 files changed, 37 insertions(+), 15 deletions(-)

Patch

diff --git a/drivers/gpu/drm/i915/intel_step.c b/drivers/gpu/drm/i915/intel_step.c
index 9fcf17708cc8..e9ec111d6232 100644
--- a/drivers/gpu/drm/i915/intel_step.c
+++ b/drivers/gpu/drm/i915/intel_step.c
@@ -182,3 +182,17 @@  void intel_step_init(struct drm_i915_private *i915)
 
 	RUNTIME_INFO(i915)->step = step;
 }
+
+#define STEP_NAME_CASE(name)	\
+	case STEP_##name:	\
+		return #name;
+
+const char *intel_step_name(enum intel_step step)
+{
+	switch (step) {
+	STEP_NAME_LIST(STEP_NAME_CASE);
+
+	default:
+		return "**";
+	}
+}
diff --git a/drivers/gpu/drm/i915/intel_step.h b/drivers/gpu/drm/i915/intel_step.h
index 41567d9b7c35..f6641e2a3c77 100644
--- a/drivers/gpu/drm/i915/intel_step.h
+++ b/drivers/gpu/drm/i915/intel_step.h
@@ -15,31 +15,39 @@  struct intel_step_info {
 	u8 display_step;
 };
 
+#define STEP_ENUM_VAL(name)  STEP_##name,
+
+#define STEP_NAME_LIST(func)		\
+	func(A0)			\
+	func(A1)			\
+	func(A2)			\
+	func(B0)			\
+	func(B1)			\
+	func(B2)			\
+	func(C0)			\
+	func(C1)			\
+	func(D0)			\
+	func(D1)			\
+	func(E0)			\
+	func(F0)			\
+	func(G0)			\
+	func(H0)			\
+	func(I0)			\
+	func(I1)			\
+	func(J0)
+
 /*
  * 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_A1,
-	STEP_A2,
-	STEP_B0,
-	STEP_B1,
-	STEP_C0,
-	STEP_D0,
-	STEP_D1,
-	STEP_E0,
-	STEP_F0,
-	STEP_G0,
-	STEP_H0,
-	STEP_I0,
-	STEP_I1,
-	STEP_J0,
+	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);
 
 #endif /* __INTEL_STEP_H__ */