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drm/i915: Don't cancel/schedule drrs work if the pipe wasn't affected

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Skip all the DRRS work cancel/schedule stuff if the pipe's
frontbuffer bits were not among those affected by the frontbuffer
rendering.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315132752.11849-6-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
This commit is contained in:
Ville Syrjälä
2022-03-15 15:27:48 +02:00
parent 70e10a2b7e
commit fb4ae6e650
1 changed files with 8 additions and 9 deletions
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17
drivers/gpu/drm/i915/display/intel_drrs.c
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@@ -278,32 +278,31 @@ static void intel_drrs_frontbuffer_update(struct drm_i915_private *dev_priv,
for_each_intel_crtc(&dev_priv->drm, crtc) {
unsigned int frontbuffer_bits;
cancel_delayed_work(&crtc->drrs.work);
mutex_lock(&crtc->drrs.mutex);
if (!intel_drrs_is_enabled(crtc)) {
frontbuffer_bits = all_frontbuffer_bits & crtc->drrs.frontbuffer_bits;
if (!frontbuffer_bits) {
mutex_unlock(&crtc->drrs.mutex);
continue;
}
frontbuffer_bits = all_frontbuffer_bits & crtc->drrs.frontbuffer_bits;
if (invalidate)
crtc->drrs.busy_frontbuffer_bits |= frontbuffer_bits;
else
crtc->drrs.busy_frontbuffer_bits &= ~frontbuffer_bits;
/* flush/invalidate means busy screen hence upclock */
if (frontbuffer_bits)
intel_drrs_set_state(crtc, DRRS_REFRESH_RATE_HIGH);
intel_drrs_set_state(crtc, DRRS_REFRESH_RATE_HIGH);
/*
* flush also means no more activity hence schedule downclock, if all
* other fbs are quiescent too
*/
if (!invalidate && !crtc->drrs.busy_frontbuffer_bits)
schedule_delayed_work(&crtc->drrs.work,
msecs_to_jiffies(1000));
if (!crtc->drrs.busy_frontbuffer_bits)
mod_delayed_work(system_wq, &crtc->drrs.work,
msecs_to_jiffies(1000));
else
cancel_delayed_work(&crtc->drrs.work);
mutex_unlock(&crtc->drrs.mutex);
}