Message ID | 1373014667-19484-13-git-send-email-ville.syrjala@linux.intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 6ff89c6..e4d2477 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2357,6 +2357,13 @@ static void intel_read_wm_latency(struct drm_device *dev, uint16_t wm[5]) wm[1] = (sskpd >> SSKPD_WM1_SHIFT) & SSKPD_WM_MASK; wm[2] = (sskpd >> SSKPD_WM2_SHIFT) & SSKPD_WM_MASK; wm[3] = (sskpd >> SSKPD_WM3_SHIFT) & SSKPD_WM_MASK; + } else if (INTEL_INFO(dev)->gen >= 5) { + uint32_t mltr = I915_READ(MLTR_ILK); + + /* ILK primary LP0 latency is 700 ns */ + wm[0] = 7; + wm[1] = (mltr >> MLTR_WM1_SHIFT) & ILK_SRLT_MASK; + wm[2] = (mltr >> MLTR_WM2_SHIFT) & ILK_SRLT_MASK; } }