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drm/i915: Fix FB WM for HSW

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Due to a misplaced memset(), we never actually enabled the FBC WM on HSW.
Move the memset() to happen a bit earlier, so that it won't clobber
results->enable_fbc_wm.

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 2013-08-09 18:02:09 +03:00 committed by Daniel Vetter
parent 6f6005a52b
commit 5c536613d8
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/intel_pm.c
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@ -2681,6 +2681,8 @@ static void hsw_compute_wm_results(struct drm_device *dev,
break; break;
max_level = level - 1; max_level = level - 1;
memset(results, 0, sizeof(*results));
/* The spec says it is preferred to disable FBC WMs instead of disabling /* The spec says it is preferred to disable FBC WMs instead of disabling
* a WM level. */ * a WM level. */
results->enable_fbc_wm = true; results->enable_fbc_wm = true;
@ -2691,7 +2693,6 @@ static void hsw_compute_wm_results(struct drm_device *dev,
} }
} }
memset(results, 0, sizeof(*results));
for (wm_lp = 1; wm_lp <= 3; wm_lp++) { for (wm_lp = 1; wm_lp <= 3; wm_lp++) {
const struct intel_wm_level *r; const struct intel_wm_level *r;