RE: [PATCH v3 10/10] drm/i915/psr: Allow DSB usage when PSR is enabled

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> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Jouni
> Högander
> Sent: Thursday, January 9, 2025 1:02 PM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; intel-xe@xxxxxxxxxxxxxxxxxxxxx
> Cc: Hogander, Jouni <jouni.hogander@xxxxxxxxx>
> Subject: [PATCH v3 10/10] drm/i915/psr: Allow DSB usage when PSR is
> enabled
> 
> Now as we have correct PSR2_MAN_TRK_CTL handling in place we can allow
> DSB usage also when PSR is enabled for LunarLake onwards.
> 
> Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx>

Reviewed-by: Animesh Manna <animesh.manna@xxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index e448ff64660a..58575800fad2 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -7631,6 +7631,7 @@ static void intel_atomic_dsb_finish(struct
> intel_atomic_state *state,
>  		intel_atomic_get_old_crtc_state(state, crtc);
>  	struct intel_crtc_state *new_crtc_state =
>  		intel_atomic_get_new_crtc_state(state, crtc);
> +	struct intel_display *display = to_intel_display(crtc);
> 
>  	if (!new_crtc_state->hw.active)
>  		return;
> @@ -7643,7 +7644,7 @@ static void intel_atomic_dsb_finish(struct
> intel_atomic_state *state,
>  		new_crtc_state->update_planes &&
>  		!new_crtc_state->vrr.enable &&
>  		!new_crtc_state->do_async_flip &&
> -		!new_crtc_state->has_psr &&
> +		(DISPLAY_VER(display) >= 20 || !new_crtc_state->has_psr)
> &&
>  		!new_crtc_state->scaler_state.scaler_users &&
>  		!old_crtc_state->scaler_state.scaler_users &&
>  		!intel_crtc_needs_modeset(new_crtc_state) &&
> --
> 2.43.0





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