drm/i915: Init HSW watermark tracking in intel_modeset_setup_hw_state()
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Mon, 14 Oct 2013 11:55:24 +0000 (14:55 +0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 15 Oct 2013 17:01:24 +0000 (19:01 +0200)
commit243e6a44b9ca5aa3c9ce47459a53e03b1dc7e665
treeeb9b3817e8aeb1559327c4ba9291fe66b83b890d
parent49a687c471396d063bb3d3cf04d62568efe7ec5e
drm/i915: Init HSW watermark tracking in intel_modeset_setup_hw_state()

Fill out the HSW watermark s/w tracking structures with the current
hardware state in intel_modeset_setup_hw_state(). This allows us to skip
the HW state readback during watermark programming and just use the values
we keep around in dev_priv->wm. Reduces the overhead of the watermark
programming quite a bit.

v2: s/init_wm/wm_get_hw_state
    Remove stale comment about sprites
    Make DDB partitioning readout safer

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Fix whitespace fail.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/i915/intel_drv.h
drivers/gpu/drm/i915/intel_pm.c