Commit 63cf9a13 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter

drm/i915: Add SNB/IVB support to intel_read_wm_latency

SNB and IVB have slightly a different way to read out the
watermark latency values.
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent e5d5019e
...@@ -2365,6 +2365,13 @@ static void intel_read_wm_latency(struct drm_device *dev, uint16_t wm[5]) ...@@ -2365,6 +2365,13 @@ static void intel_read_wm_latency(struct drm_device *dev, uint16_t wm[5])
wm[2] = (sskpd >> 12) & 0xFF; wm[2] = (sskpd >> 12) & 0xFF;
wm[3] = (sskpd >> 20) & 0x1FF; wm[3] = (sskpd >> 20) & 0x1FF;
wm[4] = (sskpd >> 32) & 0x1FF; wm[4] = (sskpd >> 32) & 0x1FF;
} else if (INTEL_INFO(dev)->gen >= 6) {
uint32_t sskpd = I915_READ(MCH_SSKPD);
wm[0] = (sskpd >> SSKPD_WM0_SHIFT) & SSKPD_WM_MASK;
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;
} }
} }
......
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