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path: root/drivers/gpu/drm/i915/intel_pm.c
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-rw-r--r--drivers/gpu/drm/i915/intel_pm.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index af8dca28c505..d7750176091b 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -65,6 +65,11 @@ static void skl_init_clock_gating(struct drm_device *dev)
GEN8_GAPSUNIT_CLOCK_GATE_DISABLE |
GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
}
+
+ if (INTEL_REVID(dev) <= SKL_REVID_E0)
+ /* WaDisableLSQCROPERFforOCL:skl */
+ I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) |
+ GEN8_LQSC_RO_PERF_DIS);
}
static void i915_pineview_get_mem_freq(struct drm_device *dev)