From: Akash Goel <akash.goel@xxxxxxxxx>
On SKL, the frequency programmed in RPNSWREQ (A008) register
has to be in units of 16.66 MHZ. So updated the gen6_set_rps
function, as per this change.
Signed-off-by: Akash Goel <akash.goel@xxxxxxxxx>
Reviewed-by: Lespiau, Damien <damien.lespiau@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_pm.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index bebefe7..1df3fbd 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3764,7 +3764,10 @@ static void gen6_set_rps(struct drm_device *dev, u8 val)
if (val != dev_priv->rps.cur_freq) {
gen6_set_rps_thresholds(dev_priv, val);
- if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+ if (IS_GEN9(dev))
+ I915_WRITE(GEN6_RPNSWREQ,
+ GEN9_FREQUENCY(val * GEN9_FREQ_SCALER));
+ else if (IS_HASWELL(dev) || IS_BROADWELL(dev))
I915_WRITE(GEN6_RPNSWREQ,
HSW_FREQUENCY(val));
else
--
1.9.2
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