diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 2fcff9788b6f..ac4cf98030f9 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -6591,7 +6591,7 @@ static void gen9_enable_rc6(struct drm_i915_private *dev_priv) { struct intel_engine_cs *engine; enum intel_engine_id id; - uint32_t rc6_mask = 0; + u32 rc6_mode, rc6_mask = 0; /* 1a: Software RC state - RC0 */ I915_WRITE(GEN6_RC_STATE, 0); @@ -6629,8 +6629,15 @@ static void gen9_enable_rc6(struct drm_i915_private *dev_priv) rc6_mask = GEN6_RC_CTL_RC6_ENABLE; DRM_INFO("RC6 %s\n", onoff(rc6_mask & GEN6_RC_CTL_RC6_ENABLE)); I915_WRITE(GEN6_RC6_THRESHOLD, 37500); /* 37.5/125ms per EI */ + + /* WaRsUseTimeoutMode:cnl (pre-prod) */ + if (IS_CNL_REVID(dev_priv, CNL_REVID_A0, CNL_REVID_C0)) + rc6_mode = GEN7_RC_CTL_TO_MODE; + else + rc6_mode = GEN6_RC_CTL_EI_MODE(1); + I915_WRITE(GEN6_RC_CONTROL, - GEN6_RC_CTL_HW_ENABLE | GEN6_RC_CTL_EI_MODE(1) | rc6_mask); + GEN6_RC_CTL_HW_ENABLE | rc6_mode | rc6_mask); /* * 3b: Enable Coarse Power Gating only when RC6 is enabled. |