Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued

[linux-drm-fsl-dcu.git] / drivers / gpu / drm / i915 / intel_ringbuffer.c

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 1c14233d179f1e85f988e603f2a6478586224ff0..177f7ed16cf0abbe6c2518b0a98ae7bf16a34b44 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1041,6 +1041,13 @@ static int skl_init_workarounds(struct intel_engine_cs *ring)
                WA_SET_BIT_MASKED(HIZ_CHICKEN,
                                  BDW_HIZ_POWER_COMPILER_CLOCK_GATING_DISABLE);
 
+       if (INTEL_REVID(dev) == SKL_REVID_C0 ||
+           INTEL_REVID(dev) == SKL_REVID_D0)
+               /* WaBarrierPerformanceFixDisable:skl */
+               WA_SET_BIT_MASKED(HDC_CHICKEN0,
+                                 HDC_FENCE_DEST_SLM_DISABLE |
+                                 HDC_BARRIER_PERFORMANCE_DISABLE);
+
        if (INTEL_REVID(dev) <= SKL_REVID_D0) {
                /*
                 *Use Force Non-Coherent whenever executing a 3D context. This