If the GPU load is low enough, it's possible that we'll be stuck at idle frequency rather than transition into softmin frequency requested by userspace.
v2: Use intel_set_rps, drop vlv_set_idle v3: Back to vlv_set_idle, clamp to valid range References: https://bugs.freedesktop.org/show_bug.cgi?id=89728 Cc: Chris Wilson <[email protected]> Cc: Imre Deak <[email protected]> Cc: Ville Syrjälä <[email protected]> Signed-off-by: Michał Winiarski <[email protected]> --- drivers/gpu/drm/i915/intel_pm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 658a756..a71f946 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4840,6 +4840,11 @@ void gen6_rps_busy(struct drm_i915_private *dev_priv) { mutex_lock(&dev_priv->rps.hw_lock); if (dev_priv->rps.enabled) { + /* Ensure we start at the user's desired frequency */ + intel_set_rps(dev_priv, + clamp(dev_priv->rps.cur_freq, + dev_priv->rps.min_freq_softlimit, + dev_priv->rps.max_freq_softlimit)); if (dev_priv->pm_rps_events & (GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED)) gen6_rps_reset_ei(dev_priv); I915_WRITE(GEN6_PMINTRMSK, -- 2.8.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
