drm/i915: Introduce intel_crtc_planes_update_arm()

No reason the high level intel_update_crtc() needs to know
that there is something magical about the commit order of
planes between different platforms. So let's hide that
detail even better.

In order to keep to somewhat consistent naming between
things we shall call this intel_crtc_planes_update_arm()
to match the plane->update_arm() vfunc naming convention.
And let's rename the noarm counterpart to
intel_crtc_planes_update_noarm() to more clearly associate
it with the plane->update_noarm() vfunc.

v2: Change the naming convention a bit
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220216232806.6194-2-ville.syrjala@linux.intel.com

drivers/gpu/drm/i915/display/intel_atomic_plane.c

@@ -693,8 +693,8 @@ void intel_plane_disable_arm(struct intel_plane *plane,
 	plane->disable_arm(plane, crtc_state);
 }
 
-void intel_update_planes_on_crtc(struct intel_atomic_state *state,
-				 struct intel_crtc *crtc)
+void intel_crtc_planes_update_noarm(struct intel_atomic_state *state,
+				    struct intel_crtc *crtc)
 {
 	struct intel_crtc_state *new_crtc_state =
 		intel_atomic_get_new_crtc_state(state, crtc);
@@ -722,8 +722,8 @@ void intel_update_planes_on_crtc(struct intel_atomic_state *state,
 	}
 }
 
-void skl_arm_planes_on_crtc(struct intel_atomic_state *state,
-			    struct intel_crtc *crtc)
+static void skl_crtc_planes_update_arm(struct intel_atomic_state *state,
+				       struct intel_crtc *crtc)
 {
 	struct intel_crtc_state *old_crtc_state =
 		intel_atomic_get_old_crtc_state(state, crtc);
@@ -757,8 +757,8 @@ void skl_arm_planes_on_crtc(struct intel_atomic_state *state,
 	}
 }
 
-void i9xx_arm_planes_on_crtc(struct intel_atomic_state *state,
-			     struct intel_crtc *crtc)
+static void i9xx_crtc_planes_update_arm(struct intel_atomic_state *state,
+					struct intel_crtc *crtc)
 {
 	struct intel_crtc_state *new_crtc_state =
 		intel_atomic_get_new_crtc_state(state, crtc);
@@ -783,6 +783,17 @@ void i9xx_arm_planes_on_crtc(struct intel_atomic_state *state,
 	}
 }
 
+void intel_crtc_planes_update_arm(struct intel_atomic_state *state,
+				  struct intel_crtc *crtc)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+
+	if (DISPLAY_VER(i915) >= 9)
+		skl_crtc_planes_update_arm(state, crtc);
+	else
+		i9xx_crtc_planes_update_arm(state, crtc);
+}
+
 int intel_atomic_plane_check_clipping(struct intel_plane_state *plane_state,
 				      struct intel_crtc_state *crtc_state,
 				      int min_scale, int max_scale,

drivers/gpu/drm/i915/display/intel_atomic_plane.h

@@ -44,12 +44,10 @@ void intel_plane_free(struct intel_plane *plane);
 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
 void intel_plane_destroy_state(struct drm_plane *plane,
 			       struct drm_plane_state *state);
-void intel_update_planes_on_crtc(struct intel_atomic_state *state,
-				 struct intel_crtc *crtc);
-void skl_arm_planes_on_crtc(struct intel_atomic_state *state,
-			    struct intel_crtc *crtc);
-void i9xx_arm_planes_on_crtc(struct intel_atomic_state *state,
-			     struct intel_crtc *crtc);
+void intel_crtc_planes_update_noarm(struct intel_atomic_state *state,
+				    struct intel_crtc *crtc);
+void intel_crtc_planes_update_arm(struct intel_atomic_state *state,
+				  struct intel_crtc *crtc);
 int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
 					struct intel_crtc_state *crtc_state,
 					const struct intel_plane_state *old_plane_state,

drivers/gpu/drm/i915/display/intel_display.c

@@ -7954,7 +7954,6 @@ static void intel_enable_crtc(struct intel_atomic_state *state,
 static void intel_update_crtc(struct intel_atomic_state *state,
 			      struct intel_crtc *crtc)
 {
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
 	const struct intel_crtc_state *old_crtc_state =
 		intel_atomic_get_old_crtc_state(state, crtc);
 	struct intel_crtc_state *new_crtc_state =
@@ -7975,17 +7974,14 @@ static void intel_update_crtc(struct intel_atomic_state *state,
 
 	intel_fbc_update(state, crtc);
 
-	intel_update_planes_on_crtc(state, crtc);
+	intel_crtc_planes_update_noarm(state, crtc);
 
 	/* Perform vblank evasion around commit operation */
 	intel_pipe_update_start(new_crtc_state);
 
 	commit_pipe_pre_planes(state, crtc);
 
-	if (DISPLAY_VER(dev_priv) >= 9)
-		skl_arm_planes_on_crtc(state, crtc);
-	else
-		i9xx_arm_planes_on_crtc(state, crtc);
+	intel_crtc_planes_update_arm(state, crtc);
 
 	commit_pipe_post_planes(state, crtc);