Re: [PATCH v2 4/4] drm/i915/panelreplay: Added state checker for panel replay state

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On Thu, 07 Oct 2021, Animesh Manna <animesh.manna@xxxxxxxxx> wrote:
> has_panel_replay flag is used to check panel replay state
> which is part of crtc_state structure.
>
> Signed-off-by: Animesh Manna <animesh.manna@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 1 +
>  drivers/gpu/drm/i915/display/intel_psr.c     | 2 ++
>  2 files changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 4f0badb11bbb..a30b6fe87dfc 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -8136,6 +8136,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
>  			PIPE_CONF_CHECK_BOOL(has_psr);
>  			PIPE_CONF_CHECK_BOOL(has_psr2);
>  			PIPE_CONF_CHECK_BOOL(enable_psr2_sel_fetch);
> +			PIPE_CONF_CHECK_BOOL(has_panel_replay);
>  			PIPE_CONF_CHECK_I(dc3co_exitline);
>  		}
>  	}
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
> index 197cab7551c6..756f3c775e71 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -1050,6 +1050,8 @@ void intel_psr_get_config(struct intel_encoder *encoder,
>  	 */
>  	pipe_config->has_psr = true;
>  	pipe_config->has_psr2 = intel_dp->psr.psr2_enabled;
> +	pipe_config->has_panel_replay = intel_dp->psr.enabled &&
> +					intel_dp_is_edp(intel_dp);

Get config is supposed to read the config from hardware, and then the
state checker compares sw and hw states. This seems off.

BR,
Jani.

>  	pipe_config->infoframes.enable |= intel_hdmi_infoframe_enable(DP_SDP_VSC);
>  
>  	if (!intel_dp->psr.psr2_enabled)

-- 
Jani Nikula, Intel Open Source Graphics Center



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