We are planning to move flush performed from work queue. This
means it is possible to have invalidate -> flip -> flush sequence.
Handle this by clearing possible busy bits on flip.

Signed-off-by: Jouni Högander <jouni.hogan...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c 
b/drivers/gpu/drm/i915/display/intel_psr.c
index 79e57a5e1738..b9e38acc5132 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -2230,6 +2230,12 @@ static void _intel_psr_post_plane_update(const struct 
intel_atomic_state *state,
                if (crtc_state->crc_enabled && psr->enabled)
                        psr_force_hw_tracking_exit(intel_dp);
 
+               /*
+                * Clear possible busy bits in case we have
+                * invalidate -> flip -> flush sequence.
+                */
+               intel_dp->psr.busy_frontbuffer_bits = 0;
+
                mutex_unlock(&psr->lock);
        }
 }
-- 
2.34.1

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