| Message ID | 20180801170419.1085-1-chris@chris-wilson.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/2] drm/i915: Drop stray clearing of rps->last_adj | expand |
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 2531eb75bdce..f90a3c7f1c40 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -6371,7 +6371,6 @@ static void gen6_set_rps_thresholds(struct drm_i915_private *dev_priv, u8 val) new_power = HIGH_POWER; rps_set_power(dev_priv, new_power); mutex_unlock(&rps->power.mutex); - rps->last_adj = 0; } void intel_rps_mark_interactive(struct drm_i915_private *i915, bool interactive)
We used to reset last_adj to 0 on crossing a power domain boundary, to slow down our rate of change. However, commit 60548c554be2 ("drm/i915: Interactive RPS mode") accidentally caused it to be reset on every frequency update, nerfing the fast response granted by the slow start algorithm. Fixes: 60548c554be2 ("drm/i915: Interactive RPS mode") Testcase: igt/pm_rps/mix-max-config-loaded Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> --- drivers/gpu/drm/i915/intel_pm.c | 1 - 1 file changed, 1 deletion(-)