Re: [PATCH 04/17] drm/i915: Move more cdclk state handling into the cdclk code

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On Mon, 2020-01-20 at 19:47 +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> Move the initial setup of state-
> >{cdclk,min_cdclk[],min_voltage_level[]}
> into intel_modeset_calc_cdclk(), and we'll move the counterparts into
> intel_cdclk_swap_state(). This encapsulates the cdclk state much
> better.
> 

Reviewed-by: José Roberto de Souza <jose.souza@xxxxxxxxx>

> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_cdclk.c   | 26 +++++++++++++++---
> --
>  drivers/gpu/drm/i915/display/intel_display.c | 11 ---------
>  2 files changed, 20 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c
> b/drivers/gpu/drm/i915/display/intel_cdclk.c
> index 0ce5926006ca..05f6c6456ddf 100644
> --- a/drivers/gpu/drm/i915/display/intel_cdclk.c
> +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
> @@ -1819,6 +1819,14 @@ void intel_cdclk_swap_state(struct
> intel_atomic_state *state)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
>  
> +	/* FIXME maybe swap() these too */
> +	memcpy(dev_priv->min_cdclk, state->min_cdclk,
> +	       sizeof(state->min_cdclk));
> +	memcpy(dev_priv->min_voltage_level, state->min_voltage_level,
> +	       sizeof(state->min_voltage_level));
> +
> +	dev_priv->cdclk.force_min_cdclk = state->cdclk.force_min_cdclk;
> +
>  	swap(state->cdclk.logical, dev_priv->cdclk.logical);
>  	swap(state->cdclk.actual, dev_priv->cdclk.actual);
>  }
> @@ -2033,9 +2041,6 @@ static int intel_compute_min_cdclk(struct
> intel_atomic_state *state)
>  	int min_cdclk, i;
>  	enum pipe pipe;
>  
> -	memcpy(state->min_cdclk, dev_priv->min_cdclk,
> -	       sizeof(state->min_cdclk));
> -
>  	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
>  		int ret;
>  
> @@ -2082,9 +2087,6 @@ static int bxt_compute_min_voltage_level(struct
> intel_atomic_state *state)
>  	int i;
>  	enum pipe pipe;
>  
> -	memcpy(state->min_voltage_level, dev_priv->min_voltage_level,
> -	       sizeof(state->min_voltage_level));
> -
>  	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
>  		int ret;
>  
> @@ -2339,6 +2341,18 @@ int intel_modeset_calc_cdclk(struct
> intel_atomic_state *state)
>  	enum pipe pipe;
>  	int ret;
>  
> +	memcpy(state->min_cdclk, dev_priv->min_cdclk,
> +	       sizeof(state->min_cdclk));
> +	memcpy(state->min_voltage_level, dev_priv->min_voltage_level,
> +	       sizeof(state->min_voltage_level));
> +
> +	/* keep the current setting */
> +	if (!state->cdclk.force_min_cdclk_changed)
> +		state->cdclk.force_min_cdclk = dev_priv-
> >cdclk.force_min_cdclk;
> +
> +	state->cdclk.logical = dev_priv->cdclk.logical;
> +	state->cdclk.actual = dev_priv->cdclk.actual;
> +
>  	ret = dev_priv->display.modeset_calc_cdclk(state);
>  	if (ret)
>  		return ret;
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index 8dcb86c51aaa..930e9256596c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -14360,14 +14360,8 @@ static int intel_modeset_checks(struct
> intel_atomic_state *state)
>  	struct intel_crtc *crtc;
>  	int ret, i;
>  
> -	/* keep the current setting */
> -	if (!state->cdclk.force_min_cdclk_changed)
> -		state->cdclk.force_min_cdclk = dev_priv-
> >cdclk.force_min_cdclk;
> -
>  	state->modeset = true;
>  	state->active_pipes = dev_priv->active_pipes;
> -	state->cdclk.logical = dev_priv->cdclk.logical;
> -	state->cdclk.actual = dev_priv->cdclk.actual;
>  
>  	for_each_oldnew_intel_crtc_in_state(state, crtc,
> old_crtc_state,
>  					    new_crtc_state, i) {
> @@ -15673,12 +15667,7 @@ static int intel_atomic_commit(struct
> drm_device *dev,
>  	if (state->global_state_changed) {
>  		assert_global_state_locked(dev_priv);
>  
> -		memcpy(dev_priv->min_cdclk, state->min_cdclk,
> -		       sizeof(state->min_cdclk));
> -		memcpy(dev_priv->min_voltage_level, state-
> >min_voltage_level,
> -		       sizeof(state->min_voltage_level));
>  		dev_priv->active_pipes = state->active_pipes;
> -		dev_priv->cdclk.force_min_cdclk = state-
> >cdclk.force_min_cdclk;
>  
>  		intel_cdclk_swap_state(state);
>  	}
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