drm/i915/bxt: Add WaForceContextSaveRestoreNonCoherent
Note that we also need this for skl.
Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
[danvet: Note that we also need this for skl, requested by Imre.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index b0bd9bb..7ef9a29 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1057,6 +1057,10 @@
GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
}
+ /* WaForceContextSaveRestoreNonCoherent:bxt */
+ WA_SET_BIT_MASKED(HDC_CHICKEN0,
+ HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT);
+
return 0;
}