[Intel-gfx] [PATCH 1/2] drm/i915: enable deepest RC6 state

[Eugeni Dodonov]

This should allow even more energy saving when GPU is not in use.
According to the testing, this state results in around 0.1 - 0.4 W better
power usage.

No issues or regressions observed so far, but additional testing is
certainly welcome.

Signed-off-by: Eugeni Dodonov <eugeni.dodonov at intel.com>
---
 drivers/gpu/drm/i915/intel_display.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 981b1f1..d1e5726 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7924,6 +7924,7 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv)
 
 	if (i915_enable_rc6)
 		rc6_mask = GEN6_RC_CTL_RC6p_ENABLE |
+			GEN6_RC_CTL_RC6pp_ENABLE |
 			GEN6_RC_CTL_RC6_ENABLE;
 
 	I915_WRITE(GEN6_RC_CONTROL,
-- 
1.7.7.4