On Fri, 2025-03-21 at 11:45 +0200, Vinod Govindapillai wrote:
> There are two panel_replay scenarios fbc wa need to be aware of,
> panel replay with and without selective update capability.
> Panel replay without selective update don't have any fbc wa.
> So keep the fbc psr1 wa as it is.
> 
> The current fbc psr2 wa is mainly about selective fetch and we
> need to apply the fbc wa if selective fetch is on - irrespective
> of panel replay. Hence we can't exclude panel replay from the
> fbc psr2 wa.
> 
> v1: keep panel_replay exclusion in PSR1 case (Jouni)
>     Patch description updated
> 
> Bspec: 66624, 50442
> Signed-off-by: Vinod Govindapillai <[email protected]>

Reviewed-by: Jouni Högander <[email protected]>

> ---
>  drivers/gpu/drm/i915/display/intel_fbc.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c
> b/drivers/gpu/drm/i915/display/intel_fbc.c
> index 92b00da4c0ab..3c72047bf1a2 100644
> --- a/drivers/gpu/drm/i915/display/intel_fbc.c
> +++ b/drivers/gpu/drm/i915/display/intel_fbc.c
> @@ -1471,9 +1471,8 @@ static int intel_fbc_check_plane(struct
> intel_atomic_state *state,
>        * disabling PSR2, keep FBC disabled in case of selective
> update is on
>        * until the selection logic is implemented.
>        */
> -     if (DISPLAY_VER(display) >= 12 && crtc_state->has_sel_update
> &&
> -         !crtc_state->has_panel_replay) {
> -             plane_state->no_fbc_reason = "PSR2 enabled";
> +     if (DISPLAY_VER(display) >= 12 && crtc_state-
> >has_sel_update) {
> +             plane_state->no_fbc_reason = "Selective update
> enabled";
>               return 0;
>       }
>  

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