On gen11 the recommended rc6 threshold differs from previous
gens, apply it. Move the write to a correct spot in sequence.

v2: do write in 2b, fix bspec ref (Michal)

Bspec: 33149
Cc: Michal Wajdeczko <[email protected]>
Signed-off-by: Mika Kuoppala <[email protected]>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 43ec0fb4c197..3a157bdbee2a 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7149,6 +7149,8 @@ static void gen11_enable_rc6(struct drm_i915_private 
*dev_priv)
 
        I915_WRITE(GEN6_RC_SLEEP, 0);
 
+       I915_WRITE(GEN6_RC6_THRESHOLD, 50000); /* 50/125ms per EI */
+
        /*
         * 2c: Program Coarse Power Gating Policies.
         *
@@ -7174,8 +7176,6 @@ static void gen11_enable_rc6(struct drm_i915_private 
*dev_priv)
        I915_WRITE(GEN9_RENDER_PG_IDLE_HYSTERESIS, 250);
 
        /* 3a: Enable RC6 */
-       I915_WRITE(GEN6_RC6_THRESHOLD, 37500); /* 37.5/125ms per EI */
-
        I915_WRITE(GEN6_RC_CONTROL,
                   GEN6_RC_CTL_HW_ENABLE |
                   GEN6_RC_CTL_RC6_ENABLE |
-- 
2.17.1

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