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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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[Why] Seamless boot tries to reuse planes that were enabled for the first commit applied. In the case where Raven is booting with two monitors connected and the first commit contains two streams the screen corruption would occur because the second stream was trying to re-use a tg and plane that weren't previously enabled. The state on the first commit looks something like the following: TG0: enabled=1 TG1: enabled=0 TG2: enabled=0 TG3: enabled=0 New state: pipe=0, stream=0, plane=0, new_tg=0 New state: pipe=1, stream=1, plane=1, new_tg=1 New state: pipe=2, stream=NULL, plane=NULL, new_tg=NULL New state: pipe=3, stream=NULL, plane=NULL, new_tg=NULL Only one plane/tg is setup before we enter accelerated mode so we really want to disabling everything but that first plane. [How] Check if the stream is not NULL and if the tg is enabled before deciding whether to skip the plane disable. Also ensure we're also disabling on the current state's pipe_ctx so we don't overwrite the fields in the new pending state. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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