<div dir="ltr">Reviewed-by: Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 4, 2014 at 4:27 AM, Damien Lespiau <span dir="ltr"><<a href="mailto:damien.lespiau@intel.com" target="_blank">damien.lespiau@intel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Signed-off-by: Damien Lespiau <<a href="mailto:damien.lespiau@intel.com">damien.lespiau@intel.com</a>><br>
---<br>
drivers/gpu/drm/i915/i915_reg.h | 3 +++<br>
drivers/gpu/drm/i915/intel_pm.c | 8 ++++++++<br>
2 files changed, 11 insertions(+)<br>
<br>
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h<br>
index 5928a75..c293dab 100644<br>
--- a/drivers/gpu/drm/i915/i915_reg.h<br>
+++ b/drivers/gpu/drm/i915/i915_reg.h<br>
@@ -5862,6 +5862,9 @@ enum punit_power_well {<br>
#define GEN7_SINGLE_SUBSCAN_DISPATCH_ENABLE (1<<10)<br>
#define GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE (1<<3)<br>
<br>
+#define GEN9_HALF_SLICE_CHICKEN5 0xe188<br>
+#define GEN9_DG_MIRROR_FIX_ENABLE (1<<5)<br>
+<br>
#define GEN8_ROW_CHICKEN 0xe4f0<br>
#define PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE (1<<8)<br>
#define STALL_DOP_GATING_DISABLE (1<<5)<br>
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c<br>
index c38baea..faff54e 100644<br>
--- a/drivers/gpu/drm/i915/intel_pm.c<br>
+++ b/drivers/gpu/drm/i915/intel_pm.c<br>
@@ -77,6 +77,14 @@ static void gen9_init_clock_gating(struct drm_device *dev)<br>
I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |<br>
GEN8_SDEUNIT_CLOCK_GATE_DISABLE);<br>
<br>
+ /*<br>
+ * WaDisableDgMirrorFixInHalfSliceChicken5:skl<br>
+ * This is a pre-production w/a.<br>
+ */<br>
+ I915_WRITE(GEN9_HALF_SLICE_CHICKEN5,<br>
+ I915_READ(GEN9_HALF_SLICE_CHICKEN5) &<br>
+ ~GEN9_DG_MIRROR_FIX_ENABLE);<br>
+<br>
/* Wa4x4STCOptimizationDisable:skl */<br>
I915_WRITE(CACHE_MODE_1,<br>
_MASKED_BIT_ENABLE(GEN8_4x4_STC_OPTIMIZATION_DISABLE));<br>
<span class="HOEnZb"><font color="#888888">--<br>
1.8.3.1<br>
<br>
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</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br><div>Rodrigo Vivi</div><div>Blog: <a href="http://blog.vivi.eng.br" target="_blank">http://blog.vivi.eng.br</a></div><div> </div>
</div>