[PATCH 10/10] drm/i915: rip out update_linetime_wm abstraction

[Daniel Vetter <daniel.vetter@ffwll.ch>]

I like abstraction and vfuncs, but only if they actually abstract anything.
In this case here they just obfuscate, so let's rip this stuff out.

Aside: We really should move all the haswell stuff into it's own file ...

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_drv.h      |  2 --
 drivers/gpu/drm/i915/intel_display.c | 31 +++++++++++++++++++++++++++---
 drivers/gpu/drm/i915/intel_drv.h     |  2 --
 drivers/gpu/drm/i915/intel_pm.c      | 37 ------------------------------------
 4 files changed, 28 insertions(+), 44 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a98cff0..ac52c75 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -269,8 +269,6 @@ struct drm_i915_display_funcs {
 	void (*update_wm)(struct drm_device *dev);
 	void (*update_sprite_wm)(struct drm_device *dev, int pipe,
 				 uint32_t sprite_width, int pixel_size);
-	void (*update_linetime_wm)(struct drm_device *dev, int pipe,
-				 struct drm_display_mode *mode);
 	void (*modeset_global_resources)(struct drm_device *dev);
 	int (*crtc_mode_set)(struct drm_crtc *crtc,
 			     struct drm_display_mode *mode,
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0a45d07..0c7e88d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5380,11 +5380,36 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
 
 	ret = intel_pipe_set_base(crtc, x, y, fb);
 
-	intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
-
 	return fdi_config_ok ? ret : -EINVAL;
 }
 
+static void
+haswell_update_linetime_wm(struct drm_device *dev, int pipe,
+				 struct drm_display_mode *mode)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	u32 temp;
+
+	temp = I915_READ(PIPE_WM_LINETIME(pipe));
+	temp &= ~PIPE_WM_LINETIME_MASK;
+
+	/* The WM are computed with base on how long it takes to fill a single
+	 * row at the given clock rate, multiplied by 8.
+	 * */
+	temp |= PIPE_WM_LINETIME_TIME(
+		((mode->crtc_hdisplay * 1000) / mode->clock) * 8);
+
+	/* IPS watermarks are only used by pipe A, and are ignored by
+	 * pipes B and C.  They are calculated similarly to the common
+	 * linetime values, except that we are using CD clock frequency
+	 * in MHz instead of pixel rate for the division.
+	 *
+	 * This is a placeholder for the IPS watermark calculation code.
+	 */
+
+	I915_WRITE(PIPE_WM_LINETIME(pipe), temp);
+}
+
 static int haswell_crtc_mode_set(struct drm_crtc *crtc,
 				 struct drm_display_mode *mode,
 				 struct drm_display_mode *adjusted_mode,
@@ -5465,7 +5490,7 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc,
 
 	ret = intel_pipe_set_base(crtc, x, y, fb);
 
-	intel_update_linetime_watermarks(dev, pipe, adjusted_mode);
+	haswell_update_linetime_wm(dev, pipe, adjusted_mode);
 
 	return ret;
 }
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 7ca7772..824efde 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -622,8 +622,6 @@ extern void intel_update_watermarks(struct drm_device *dev);
 extern void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
 					   uint32_t sprite_width,
 					   int pixel_size);
-extern void intel_update_linetime_watermarks(struct drm_device *dev, int pipe,
-			 struct drm_display_mode *mode);
 
 extern unsigned long intel_gen4_compute_offset_xtiled(int *x, int *y,
 						      unsigned int bpp,
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index f595b8d..a487d15 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1890,33 +1890,6 @@ static void sandybridge_update_wm(struct drm_device *dev)
 		   cursor_wm);
 }
 
-static void
-haswell_update_linetime_wm(struct drm_device *dev, int pipe,
-				 struct drm_display_mode *mode)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	u32 temp;
-
-	temp = I915_READ(PIPE_WM_LINETIME(pipe));
-	temp &= ~PIPE_WM_LINETIME_MASK;
-
-	/* The WM are computed with base on how long it takes to fill a single
-	 * row at the given clock rate, multiplied by 8.
-	 * */
-	temp |= PIPE_WM_LINETIME_TIME(
-		((mode->crtc_hdisplay * 1000) / mode->clock) * 8);
-
-	/* IPS watermarks are only used by pipe A, and are ignored by
-	 * pipes B and C.  They are calculated similarly to the common
-	 * linetime values, except that we are using CD clock frequency
-	 * in MHz instead of pixel rate for the division.
-	 *
-	 * This is a placeholder for the IPS watermark calculation code.
-	 */
-
-	I915_WRITE(PIPE_WM_LINETIME(pipe), temp);
-}
-
 static bool
 sandybridge_compute_sprite_wm(struct drm_device *dev, int plane,
 			      uint32_t sprite_width, int pixel_size,
@@ -2112,15 +2085,6 @@ void intel_update_watermarks(struct drm_device *dev)
 		dev_priv->display.update_wm(dev);
 }
 
-void intel_update_linetime_watermarks(struct drm_device *dev,
-		int pipe, struct drm_display_mode *mode)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-
-	if (dev_priv->display.update_linetime_wm)
-		dev_priv->display.update_linetime_wm(dev, pipe, mode);
-}
-
 void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
 				    uint32_t sprite_width, int pixel_size)
 {
@@ -4011,7 +3975,6 @@ void intel_init_pm(struct drm_device *dev)
 			if (SNB_READ_WM0_LATENCY()) {
 				dev_priv->display.update_wm = sandybridge_update_wm;
 				dev_priv->display.update_sprite_wm = sandybridge_update_sprite_wm;
-				dev_priv->display.update_linetime_wm = haswell_update_linetime_wm;
 			} else {
 				DRM_DEBUG_KMS("Failed to read display plane latency. "
 					      "Disable CxSR\n");
-- 
1.7.11.7