[Intel-gfx] [PATCH 19/21] drm/i915: constify display function vtable

[Jani Nikula]

On Wed, 08 Sep 2021, Dave Airlie <airlied at gmail.com> wrote:
> From: Dave Airlie <airlied at redhat.com>

Reviewed-by: Jani Nikula <jani.nikula at intel.com>


>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 81 ++++++++++++--------
>  drivers/gpu/drm/i915/i915_drv.h              |  2 +-
>  2 files changed, 52 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 09c9dc741026..20fd35c6858c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -3736,7 +3736,7 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
>  
>  	drm_WARN_ON(&dev_priv->drm, IS_ERR(temp_crtc_state) || ret);
>  
> -	dev_priv->display.crtc_disable(to_intel_atomic_state(state), crtc);
> +	dev_priv->display->crtc_disable(to_intel_atomic_state(state), crtc);
>  
>  	drm_atomic_state_put(state);
>  
> @@ -5941,7 +5941,7 @@ static bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state)
>  	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
>  	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>  
> -	if (!i915->display.get_pipe_config(crtc, crtc_state))
> +	if (!i915->display->get_pipe_config(crtc, crtc_state))
>  		return false;
>  
>  	crtc_state->hw.active = true;
> @@ -9778,7 +9778,7 @@ static void intel_enable_crtc(struct intel_atomic_state *state,
>  
>  	intel_crtc_update_active_timings(new_crtc_state);
>  
> -	dev_priv->display.crtc_enable(state, crtc);
> +	dev_priv->display->crtc_enable(state, crtc);
>  
>  	if (new_crtc_state->bigjoiner_slave)
>  		return;
> @@ -9866,7 +9866,7 @@ static void intel_old_crtc_state_disables(struct intel_atomic_state *state,
>  	 */
>  	intel_crtc_disable_pipe_crc(crtc);
>  
> -	dev_priv->display.crtc_disable(state, crtc);
> +	dev_priv->display->crtc_disable(state, crtc);
>  	crtc->active = false;
>  	intel_fbc_disable(crtc);
>  	intel_disable_shared_dpll(old_crtc_state);
> @@ -10246,7 +10246,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
>  	}
>  
>  	/* Now enable the clocks, plane, pipe, and connectors that we set up. */
> -	dev_priv->display.commit_modeset_enables(state);
> +	dev_priv->display->commit_modeset_enables(state);
>  
>  	if (state->modeset) {
>  		intel_encoders_update_complete(state);
> @@ -11250,6 +11250,46 @@ static const struct drm_mode_config_funcs intel_mode_funcs = {
>  	.atomic_state_free = intel_atomic_state_free,
>  };
>  
> +static const struct drm_i915_display_funcs skl_display_funcs = {
> +	.get_pipe_config = hsw_get_pipe_config,
> +	.crtc_enable = hsw_crtc_enable,
> +	.crtc_disable = hsw_crtc_disable,
> +	.commit_modeset_enables = skl_commit_modeset_enables,
> +	.get_initial_plane_config = skl_get_initial_plane_config,
> +};
> +
> +static const struct drm_i915_display_funcs ddi_display_funcs = {
> +	.get_pipe_config = hsw_get_pipe_config,
> +	.crtc_enable = hsw_crtc_enable,
> +	.crtc_disable = hsw_crtc_disable,
> +	.commit_modeset_enables = intel_commit_modeset_enables,
> +	.get_initial_plane_config = i9xx_get_initial_plane_config,
> +};
> +
> +static const struct drm_i915_display_funcs pch_split_display_funcs = {
> +	.get_pipe_config = ilk_get_pipe_config,
> +	.crtc_enable = ilk_crtc_enable,
> +	.crtc_disable = ilk_crtc_disable,
> +	.commit_modeset_enables = intel_commit_modeset_enables,
> +	.get_initial_plane_config = i9xx_get_initial_plane_config,
> +};
> +
> +static const struct drm_i915_display_funcs vlv_display_funcs = {
> +	.get_pipe_config = i9xx_get_pipe_config,
> +	.crtc_enable = valleyview_crtc_enable,
> +	.crtc_disable = i9xx_crtc_disable,
> +	.commit_modeset_enables = intel_commit_modeset_enables,
> +	.get_initial_plane_config = i9xx_get_initial_plane_config,
> +};
> +
> +static const struct drm_i915_display_funcs i9xx_display_funcs = {
> +	.get_pipe_config = i9xx_get_pipe_config,
> +	.crtc_enable = i9xx_crtc_enable,
> +	.crtc_disable = i9xx_crtc_disable,
> +	.commit_modeset_enables = intel_commit_modeset_enables,
> +	.get_initial_plane_config = i9xx_get_initial_plane_config,
> +};
> +
>  /**
>   * intel_init_display_hooks - initialize the display modesetting hooks
>   * @dev_priv: device private
> @@ -11265,38 +11305,19 @@ void intel_init_display_hooks(struct drm_i915_private *dev_priv)
>  	intel_dpll_init_clock_hook(dev_priv);
>  
>  	if (DISPLAY_VER(dev_priv) >= 9) {
> -		dev_priv->display.get_pipe_config = hsw_get_pipe_config;
> -		dev_priv->display.crtc_enable = hsw_crtc_enable;
> -		dev_priv->display.crtc_disable = hsw_crtc_disable;
> +		dev_priv->display = &skl_display_funcs;
>  	} else if (HAS_DDI(dev_priv)) {
> -		dev_priv->display.get_pipe_config = hsw_get_pipe_config;
> -		dev_priv->display.crtc_enable = hsw_crtc_enable;
> -		dev_priv->display.crtc_disable = hsw_crtc_disable;
> +		dev_priv->display = &ddi_display_funcs;
>  	} else if (HAS_PCH_SPLIT(dev_priv)) {
> -		dev_priv->display.get_pipe_config = ilk_get_pipe_config;
> -		dev_priv->display.crtc_enable = ilk_crtc_enable;
> -		dev_priv->display.crtc_disable = ilk_crtc_disable;
> +		dev_priv->display = &pch_split_display_funcs;
>  	} else if (IS_CHERRYVIEW(dev_priv) ||
>  		   IS_VALLEYVIEW(dev_priv)) {
> -		dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
> -		dev_priv->display.crtc_enable = valleyview_crtc_enable;
> -		dev_priv->display.crtc_disable = i9xx_crtc_disable;
> +		dev_priv->display = &vlv_display_funcs;
>  	} else {
> -		dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
> -		dev_priv->display.crtc_enable = i9xx_crtc_enable;
> -		dev_priv->display.crtc_disable = i9xx_crtc_disable;
> +		dev_priv->display = &i9xx_display_funcs;
>  	}
>  
>  	intel_fdi_init_hook(dev_priv);
> -
> -	if (DISPLAY_VER(dev_priv) >= 9) {
> -		dev_priv->display.commit_modeset_enables = skl_commit_modeset_enables;
> -		dev_priv->display.get_initial_plane_config = skl_get_initial_plane_config;
> -	} else {
> -		dev_priv->display.commit_modeset_enables = intel_commit_modeset_enables;
> -		dev_priv->display.get_initial_plane_config = i9xx_get_initial_plane_config;
> -	}
> -
>  }
>  
>  void intel_modeset_init_hw(struct drm_i915_private *i915)
> @@ -11723,7 +11744,7 @@ int intel_modeset_init_nogem(struct drm_i915_private *i915)
>  		 * can even allow for smooth boot transitions if the BIOS
>  		 * fb is large enough for the active pipe configuration.
>  		 */
> -		i915->display.get_initial_plane_config(crtc, &plane_config);
> +		i915->display->get_initial_plane_config(crtc, &plane_config);
>  
>  		/*
>  		 * If the fb is shared between multiple heads, we'll
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 2231b93c2111..fbcafc7cc075 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1005,7 +1005,7 @@ struct drm_i915_private {
>  	const struct drm_i915_dpll_funcs *dpll_funcs;
>  
>  	/* Display functions */
> -	struct drm_i915_display_funcs display;
> +	const struct drm_i915_display_funcs *display;
>  
>  	/* Display internal color functions */
>  	const struct drm_i915_display_color_funcs *color_funcs;

-- 
Jani Nikula, Intel Open Source Graphics Center