Attachment 118886 Details for Bug 91578 – Increase watermark latencies

[patch] Increase watermark latencies

bug91578.patch (text/plain), 2.01 KB, created by Mika Kahola on 2015-10-15 11:12:53 UTC

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Creator: Mika Kahola

Created: 2015-10-15 11:12:53 UTC

Size: 2.01 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
>index 9dda3ea..1e8e849 100644
>--- a/drivers/gpu/drm/i915/intel_pm.c
>+++ b/drivers/gpu/drm/i915/intel_pm.c
>@@ -2222,7 +2222,7 @@ static bool ilk_increase_wm_latency(struct drm_i915_private *dev_priv,
> 	return true;
> }
> 
>-static void snb_wm_latency_quirk(struct drm_device *dev)
>+static void snb_wm_latency_quirk(struct drm_device *dev, int min)
> {
> 	struct drm_i915_private *dev_priv = dev->dev_private;
> 	bool changed;
>@@ -2231,9 +2231,9 @@ static void snb_wm_latency_quirk(struct drm_device *dev)
> 	 * The BIOS provided WM memory latency values are often
> 	 * inadequate for high resolution displays. Adjust them.
> 	 */
>-	changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12) |
>-		ilk_increase_wm_latency(dev_priv, dev_priv->wm.spr_latency, 12) |
>-		ilk_increase_wm_latency(dev_priv, dev_priv->wm.cur_latency, 12);
>+	changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, min) |
>+		ilk_increase_wm_latency(dev_priv, dev_priv->wm.spr_latency, min) |
>+		ilk_increase_wm_latency(dev_priv, dev_priv->wm.cur_latency, min);
> 
> 	if (!changed)
> 		return;
>@@ -2258,12 +2258,14 @@ static void ilk_setup_wm_latency(struct drm_device *dev)
> 	intel_fixup_spr_wm_latency(dev, dev_priv->wm.spr_latency);
> 	intel_fixup_cur_wm_latency(dev, dev_priv->wm.cur_latency);
> 
>+	if (IS_GEN6(dev))
>+		snb_wm_latency_quirk(dev, 12);
>+	else if (IS_HASWELL(dev))
>+		snb_wm_latency_quirk(dev, 127);
>+
> 	intel_print_wm_latency(dev, "Primary", dev_priv->wm.pri_latency);
> 	intel_print_wm_latency(dev, "Sprite", dev_priv->wm.spr_latency);
> 	intel_print_wm_latency(dev, "Cursor", dev_priv->wm.cur_latency);
>-
>-	if (IS_GEN6(dev))
>-		snb_wm_latency_quirk(dev);
> }
> 
> static void skl_setup_wm_latency(struct drm_device *dev)
>@@ -2274,6 +2276,7 @@ static void skl_setup_wm_latency(struct drm_device *dev)
> 	intel_print_wm_latency(dev, "Gen9 Plane", dev_priv->wm.skl_latency);
> }
> 
>+
> static void ilk_compute_wm_config(struct drm_device *dev,
> 				  struct intel_wm_config *config)
> {

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Attachments on bug 91578: 118343 | 118886 | 119005 | 119538 | 119904 | 120161 | 120174 | 120175

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