drm/i915/display: move more scanline functions to intel_vblank.[ch]

Reduce clutter in intel_display.c by moving the scanline moving/stopped
wait functions to intel_vblank.[ch].

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3613b8c22e5022ebf61ab942e6bc81b717e8f520.1673873708.git.jani.nikula@intel.com

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

@@ -112,6 +112,7 @@
 #include "intel_sprite.h"
 #include "intel_tc.h"
 #include "intel_tv.h"
+#include "intel_vblank.h"
 #include "intel_vdsc.h"
 #include "intel_vga.h"
 #include "intel_vrr.h"
@@ -384,41 +385,6 @@ struct intel_crtc *intel_master_crtc(const struct intel_crtc_state *crtc_state)
 		return to_intel_crtc(crtc_state->uapi.crtc);
 }
 
-static bool pipe_scanline_is_moving(struct drm_i915_private *dev_priv,
-				    enum pipe pipe)
-{
-	i915_reg_t reg = PIPEDSL(pipe);
-	u32 line1, line2;
-
-	line1 = intel_de_read(dev_priv, reg) & PIPEDSL_LINE_MASK;
-	msleep(5);
-	line2 = intel_de_read(dev_priv, reg) & PIPEDSL_LINE_MASK;
-
-	return line1 != line2;
-}
-
-static void wait_for_pipe_scanline_moving(struct intel_crtc *crtc, bool state)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	enum pipe pipe = crtc->pipe;
-
-	/* Wait for the display line to settle/start moving */
-	if (wait_for(pipe_scanline_is_moving(dev_priv, pipe) == state, 100))
-		drm_err(&dev_priv->drm,
-			"pipe %c scanline %s wait timed out\n",
-			pipe_name(pipe), str_on_off(state));
-}
-
-static void intel_wait_for_pipe_scanline_stopped(struct intel_crtc *crtc)
-{
-	wait_for_pipe_scanline_moving(crtc, false);
-}
-
-static void intel_wait_for_pipe_scanline_moving(struct intel_crtc *crtc)
-{
-	wait_for_pipe_scanline_moving(crtc, true);
-}
-
 static void
 intel_wait_for_pipe_off(const struct intel_crtc_state *old_crtc_state)
 {

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

@@ -417,3 +417,38 @@ int intel_get_crtc_scanline(struct intel_crtc *crtc)
 
 	return position;
 }
+
+static bool pipe_scanline_is_moving(struct drm_i915_private *dev_priv,
+				    enum pipe pipe)
+{
+	i915_reg_t reg = PIPEDSL(pipe);
+	u32 line1, line2;
+
+	line1 = intel_de_read(dev_priv, reg) & PIPEDSL_LINE_MASK;
+	msleep(5);
+	line2 = intel_de_read(dev_priv, reg) & PIPEDSL_LINE_MASK;
+
+	return line1 != line2;
+}
+
+static void wait_for_pipe_scanline_moving(struct intel_crtc *crtc, bool state)
+{
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
+
+	/* Wait for the display line to settle/start moving */
+	if (wait_for(pipe_scanline_is_moving(dev_priv, pipe) == state, 100))
+		drm_err(&dev_priv->drm,
+			"pipe %c scanline %s wait timed out\n",
+			pipe_name(pipe), str_on_off(state));
+}
+
+void intel_wait_for_pipe_scanline_stopped(struct intel_crtc *crtc)
+{
+	wait_for_pipe_scanline_moving(crtc, false);
+}
+
+void intel_wait_for_pipe_scanline_moving(struct intel_crtc *crtc)
+{
+	wait_for_pipe_scanline_moving(crtc, true);
+}

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

@@ -17,5 +17,7 @@ u32 g4x_get_vblank_counter(struct drm_crtc *crtc);
 bool intel_crtc_get_vblank_timestamp(struct drm_crtc *crtc, int *max_error,
 				     ktime_t *vblank_time, bool in_vblank_irq);
 int intel_get_crtc_scanline(struct intel_crtc *crtc);
+void intel_wait_for_pipe_scanline_stopped(struct intel_crtc *crtc);
+void intel_wait_for_pipe_scanline_moving(struct intel_crtc *crtc);
 
 #endif /* __INTEL_VBLANK_H__ */