Commit d3bc0303 authored by Jesse Barnes's avatar Jesse Barnes Committed by Daniel Vetter

drm/i915: fix WaDisablePSDDualDispatchEnable on VLV v2

Can prevent a hang when we get to tessellation.  We need to set bit 15
as well for this workaround.

v2: update changelog with accurate info
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent d7fee5f6
...@@ -3899,8 +3899,10 @@ static void valleyview_init_clock_gating(struct drm_device *dev) ...@@ -3899,8 +3899,10 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE | CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
CHICKEN3_DGMG_DONE_FIX_DISABLE); CHICKEN3_DGMG_DONE_FIX_DISABLE);
/* WaDisablePSDDualDispatchEnable */
I915_WRITE(GEN7_HALF_SLICE_CHICKEN1, I915_WRITE(GEN7_HALF_SLICE_CHICKEN1,
_MASKED_BIT_ENABLE(GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE)); _MASKED_BIT_ENABLE(GEN7_MAX_PS_THREAD_DEP |
GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE));
/* Apply the WaDisableRHWOOptimizationForRenderHang workaround. */ /* Apply the WaDisableRHWOOptimizationForRenderHang workaround. */
I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1, I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1,
......
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