Re: [PATCH 04/13] drm/i915: Adjust .crtc_compute_clock() calling convention

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On Fri, 25 Mar 2022, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> Pass the full atomic state+crtc rather than the redundant
> crtc+crtc_state pair. We already need the full atomic state
> in the hsw+ codepath anyway.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/display/intel_display.c |  2 +-
>  drivers/gpu/drm/i915/display/intel_dpll.c    | 83 ++++++++++++--------
>  drivers/gpu/drm/i915/display/intel_dpll.h    |  4 +-
>  3 files changed, 53 insertions(+), 36 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 57d9b065622f..bb1ababe4577 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -5001,7 +5001,7 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state,
>  
>  	if (mode_changed && crtc_state->hw.enable &&
>  	    !drm_WARN_ON(&dev_priv->drm, crtc_state->shared_dpll)) {
> -		ret = intel_dpll_crtc_compute_clock(crtc_state);
> +		ret = intel_dpll_crtc_compute_clock(state, crtc);
>  		if (ret)
>  			return ret;
>  	}
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c
> index 1bd4a05dff7c..1c05ec167046 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll.c
> +++ b/drivers/gpu/drm/i915/display/intel_dpll.c
> @@ -18,7 +18,8 @@
>  #include "vlv_sideband.h"
>  
>  struct intel_dpll_funcs {
> -	int (*crtc_compute_clock)(struct intel_crtc_state *crtc_state);
> +	int (*crtc_compute_clock)(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc);
>  };
>  
>  struct intel_limit {
> @@ -759,8 +760,8 @@ chv_find_best_dpll(const struct intel_limit *limit,
>  bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state,
>  			struct dpll *best_clock)
>  {
> -	int refclk = 100000;
>  	const struct intel_limit *limit = &intel_limits_bxt;
> +	int refclk = 100000;
>  
>  	return chv_find_best_dpll(limit, crtc_state,
>  				  crtc_state->port_clock, refclk,
> @@ -927,12 +928,12 @@ static void i8xx_compute_dpll(struct intel_crtc_state *crtc_state,
>  	crtc_state->dpll_hw_state.dpll = dpll;
>  }
>  
> -static int hsw_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +static int hsw_crtc_compute_clock(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc)
>  {
> -	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> -	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> -	struct intel_atomic_state *state =
> -		to_intel_atomic_state(crtc_state->uapi.state);
> +	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
>  	struct intel_encoder *encoder =
>  		intel_get_crtc_new_encoder(state, crtc_state);
>  	int ret;
> @@ -1070,12 +1071,12 @@ static void ilk_compute_dpll(struct intel_crtc_state *crtc_state,
>  	crtc_state->dpll_hw_state.dpll = dpll;
>  }
>  
> -static int ilk_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +static int ilk_crtc_compute_clock(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc)
>  {
> -	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> -	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> -	struct intel_atomic_state *state =
> -		to_intel_atomic_state(crtc_state->uapi.state);
> +	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
>  	const struct intel_limit *limit;
>  	int refclk = 120000;
>  	int ret;
> @@ -1167,11 +1168,14 @@ void chv_compute_dpll(struct intel_crtc_state *crtc_state)
>  		(crtc_state->pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
>  }
>  
> -static int chv_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +static int chv_crtc_compute_clock(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc)
>  {
> -	int refclk = 100000;
> +	struct drm_i915_private *i915 = to_i915(state->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
>  	const struct intel_limit *limit = &intel_limits_chv;
> -	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
> +	int refclk = 100000;
>  
>  	memset(&crtc_state->dpll_hw_state, 0,
>  	       sizeof(crtc_state->dpll_hw_state));
> @@ -1188,11 +1192,14 @@ static int chv_crtc_compute_clock(struct intel_crtc_state *crtc_state)
>  	return 0;
>  }
>  
> -static int vlv_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +static int vlv_crtc_compute_clock(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc)
>  {
> -	int refclk = 100000;
> +	struct drm_i915_private *i915 = to_i915(state->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
>  	const struct intel_limit *limit = &intel_limits_vlv;
> -	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
> +	int refclk = 100000;
>  
>  	memset(&crtc_state->dpll_hw_state, 0,
>  	       sizeof(crtc_state->dpll_hw_state));
> @@ -1209,10 +1216,12 @@ static int vlv_crtc_compute_clock(struct intel_crtc_state *crtc_state)
>  	return 0;
>  }
>  
> -static int g4x_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +static int g4x_crtc_compute_clock(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc)
>  {
> -	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> -	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> +	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
>  	const struct intel_limit *limit;
>  	int refclk = 96000;
>  
> @@ -1255,10 +1264,12 @@ static int g4x_crtc_compute_clock(struct intel_crtc_state *crtc_state)
>  	return 0;
>  }
>  
> -static int pnv_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +static int pnv_crtc_compute_clock(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc)
>  {
> -	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> -	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> +	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
>  	const struct intel_limit *limit;
>  	int refclk = 96000;
>  
> @@ -1292,10 +1303,12 @@ static int pnv_crtc_compute_clock(struct intel_crtc_state *crtc_state)
>  	return 0;
>  }
>  
> -static int i9xx_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +static int i9xx_crtc_compute_clock(struct intel_atomic_state *state,
> +				   struct intel_crtc *crtc)
>  {
> -	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> -	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> +	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
>  	const struct intel_limit *limit;
>  	int refclk = 96000;
>  
> @@ -1329,10 +1342,12 @@ static int i9xx_crtc_compute_clock(struct intel_crtc_state *crtc_state)
>  	return 0;
>  }
>  
> -static int i8xx_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +static int i8xx_crtc_compute_clock(struct intel_atomic_state *state,
> +				   struct intel_crtc *crtc)
>  {
> -	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> -	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> +	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
>  	const struct intel_limit *limit;
>  	int refclk = 48000;
>  
> @@ -1400,12 +1415,12 @@ static const struct intel_dpll_funcs i8xx_dpll_funcs = {
>  	.crtc_compute_clock = i8xx_crtc_compute_clock,
>  };
>  
> -int intel_dpll_crtc_compute_clock(struct intel_crtc_state *crtc_state)
> +int intel_dpll_crtc_compute_clock(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc)
>  {
> -	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> -	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	struct drm_i915_private *i915 = to_i915(state->base.dev);
>  
> -	return i915->dpll_funcs->crtc_compute_clock(crtc_state);
> +	return i915->dpll_funcs->crtc_compute_clock(state, crtc);
>  }
>  
>  void
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll.h b/drivers/gpu/drm/i915/display/intel_dpll.h
> index 69b06a9e473e..e9731b2dd01c 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll.h
> +++ b/drivers/gpu/drm/i915/display/intel_dpll.h
> @@ -10,12 +10,14 @@
>  
>  struct dpll;
>  struct drm_i915_private;
> +struct intel_atomic_state;
>  struct intel_crtc;
>  struct intel_crtc_state;
>  enum pipe;
>  
>  void intel_dpll_init_clock_hook(struct drm_i915_private *dev_priv);
> -int intel_dpll_crtc_compute_clock(struct intel_crtc_state *crtc_state);
> +int intel_dpll_crtc_compute_clock(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc);
>  int vlv_calc_dpll_params(int refclk, struct dpll *clock);
>  int pnv_calc_dpll_params(int refclk, struct dpll *clock);
>  int i9xx_calc_dpll_params(int refclk, struct dpll *clock);

-- 
Jani Nikula, Intel Open Source Graphics Center




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