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drm/i915: Double the cursor self-refresh latency on Valleyview

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It operates at twice the declared latency, so double the latency value
used for the cursor watermark calculation.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50248
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2012-12-11 12:01:43 +00:00 committed by Daniel Vetter
parent c43d0188d7
commit af6c4575af
1 changed files with 7 additions and 1 deletions
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8
drivers/gpu/drm/i915/intel_pm.c
View file

@ -1286,6 +1286,7 @@ static void valleyview_update_wm(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
int planea_wm, planeb_wm, cursora_wm, cursorb_wm;
int plane_sr, cursor_sr;
int ignore_plane_sr, ignore_cursor_sr;
unsigned int enabled = 0;
vlv_update_drain_latency(dev);
@ -1308,7 +1309,12 @@ static void valleyview_update_wm(struct drm_device *dev)
sr_latency_ns,
&valleyview_wm_info,
&valleyview_cursor_wm_info,
&plane_sr, &cursor_sr))
&plane_sr, &ignore_cursor_sr) &&
g4x_compute_srwm(dev, ffs(enabled) - 1,
2*sr_latency_ns,
&valleyview_wm_info,
&valleyview_cursor_wm_info,
&ignore_plane_sr, &cursor_sr))
I915_WRITE(FW_BLC_SELF_VLV, FW_CSPWRDWNEN);
else
I915_WRITE(FW_BLC_SELF_VLV,