From: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx> Set the min_freq_softlimit to max(RPe, 450MHz). Setting a floor can ensure a minimum experience level. The 450MHz value came from a power and performance study of various types of workloads (3D, Media, GPGPU, idle, etc). v2: rebased Signed-off-by: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_pm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 2434542..9f9afb3 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4649,7 +4649,8 @@ static void gen6_init_rps_frequencies(struct drm_device *dev) if (dev_priv->rps.min_freq_softlimit == 0) { if (IS_HASWELL(dev) || IS_BROADWELL(dev)) dev_priv->rps.min_freq_softlimit = - dev_priv->rps.efficient_freq; + /* max(RPe, 450 MHz) */ + max(dev_priv->rps.efficient_freq, (u8) 9); else dev_priv->rps.min_freq_softlimit = dev_priv->rps.min_freq; -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx