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drm/i915: Refactor max WM level

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Pull the expected max WM level determinations out to a separate
function. Will have another user soon.

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>
This commit is contained in:
Ville Syrjälä 2013-08-30 14:30:25 +03:00 committed by Daniel Vetter
parent 8de123a5d8
commit ad0d6dc485
1 changed files with 12 additions and 9 deletions
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21
drivers/gpu/drm/i915/intel_pm.c
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@ -2561,19 +2561,22 @@ static void intel_fixup_cur_wm_latency(struct drm_device *dev, uint16_t wm[5])
wm[3] *= 2;
}
static int ilk_wm_max_level(const struct drm_device *dev)
{
/* how many WM levels are we expecting */
if (IS_HASWELL(dev))
return 4;
else if (INTEL_INFO(dev)->gen >= 6)
return 3;
else
return 2;
}
static void intel_print_wm_latency(struct drm_device *dev,
const char *name,
const uint16_t wm[5])
{
int level, max_level;
/* how many WM levels are we expecting */
if (IS_HASWELL(dev))
max_level = 4;
else if (INTEL_INFO(dev)->gen >= 6)
max_level = 3;
else
max_level = 2;
int level, max_level = ilk_wm_max_level(dev);
for (level = 0; level <= max_level; level++) {
unsigned int latency = wm[level];