Hi Iskren,
On Mittwoch, 27. Jänner 2021 16:24:40 CET Iskren Chernev wrote:
Before the offending commit in msm_atomic_commit_tail wait_flush was called once per frame, after the commit was submitted. After it wait_flush is also called at the beginning to ensure previous potentially async commits are done.
For cmd panels the source of wait_flush is a ping-pong irq notifying a completion. The completion needs to be notified with complete_all so multiple waiting parties (new async committers) can proceed.
Signed-off-by: Iskren Chernev iskren.chernev@gmail.com Suggested-by: Rob Clark robdclark@gmail.com Fixes: 2d99ced787e3d ("drm/msm: async commit support")
I've tested this now on fairphone-fp2 and lge-nexus5-hammerhead, works great!
Tested-by: Luca Weiss luca@z3ntu.xyz
Regards Luca