RE: [PATCH v13 1/3] drm/i915/vrr: Add helper to check if vrr possible

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-----Original Message-----
From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Mitul Golani
Sent: Tuesday, October 1, 2024 6:47 AM
To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Nikula, Jani <jani.nikula@xxxxxxxxx>; Syrjala, Ville <ville.syrjala@xxxxxxxxx>; Nautiyal, Ankit K <ankit.k.nautiyal@xxxxxxxxx>; Shankar, Uma <uma.shankar@xxxxxxxxx>
Subject: [PATCH v13 1/3] drm/i915/vrr: Add helper to check if vrr possible
> 
> Add helper to check if vrr is possible based on flipline
> is computed.
> 
> Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_vrr.c | 7 ++++++-
>  drivers/gpu/drm/i915/display/intel_vrr.h | 1 +
>  2 files changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
> index 9a51f5bac307..79db30e31324 100644
> --- a/drivers/gpu/drm/i915/display/intel_vrr.c
> +++ b/drivers/gpu/drm/i915/display/intel_vrr.c
> @@ -56,6 +56,11 @@ bool intel_vrr_is_in_range(struct intel_connector *connector, int vrefresh)
>  		vrefresh <= info->monitor_range.max_vfreq;
>  }
>  
> +bool intel_vrr_possible(const struct intel_crtc_state *crtc_state)
> +{
> +	return (crtc_state->vrr.flipline) ? true : false;

I think this can be compressed to:

"""
	return !!(crtc_state->vrr.flipline);
"""

But otherwise:
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@xxxxxxxxx>
-Jonathan Cavitt

> +}
> +
>  void
>  intel_vrr_check_modeset(struct intel_atomic_state *state)
>  {
> @@ -281,7 +286,7 @@ void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state)
>  		intel_de_rmw(display, CHICKEN_TRANS(cpu_transcoder),
>  			     0, PIPE_VBLANK_WITH_DELAY);
>  
> -	if (!crtc_state->vrr.flipline) {
> +	if (!intel_vrr_possible(crtc_state)) {
>  		intel_de_write(display,
>  			       TRANS_VRR_CTL(display, cpu_transcoder), 0);
>  		return;
> diff --git a/drivers/gpu/drm/i915/display/intel_vrr.h b/drivers/gpu/drm/i915/display/intel_vrr.h
> index 89937858200d..af921dda4619 100644
> --- a/drivers/gpu/drm/i915/display/intel_vrr.h
> +++ b/drivers/gpu/drm/i915/display/intel_vrr.h
> @@ -15,6 +15,7 @@ struct intel_crtc_state;
>  
>  bool intel_vrr_is_capable(struct intel_connector *connector);
>  bool intel_vrr_is_in_range(struct intel_connector *connector, int vrefresh);
> +bool intel_vrr_possible(const struct intel_crtc_state *crtc_state);
>  void intel_vrr_check_modeset(struct intel_atomic_state *state);
>  void intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
>  			      struct drm_connector_state *conn_state);
> -- 
> 2.46.0
> 
> 




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