From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Wed, 9 Oct 2013 16:17:56 +0000 (+0300)
Subject: drm/i915: Don't re-compute pipe watermarks except for the affected pipe
X-Git-Tag: v3.13-rc1~76^2~68^2~58
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c4a395ff8f441acb7876281c6777624e6410349;p=pandora-kernel.git

drm/i915: Don't re-compute pipe watermarks except for the affected pipe

No point in re-computing the watermarks for all pipes, when only one
pipe has changed. The watermarks stored under intel_crtc.wm.active are
still valid for the other pipes. We just need to redo the merging.

We can also skip the merge/update procedure completely if the new
watermarks for the affected pipe come out unchanged.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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