Re: [PATCH 4/9] drm/i915/dpll: Use intel_display for dpll dump and compare hw state

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On Tue, 11 Feb 2025, Suraj Kandpal <suraj.kandpal@xxxxxxxxx> wrote:
> Lets use intel_display for dpll dump and compare hw state. This also

*Let's

> helps elimanate drm_i915_private dependency from i915_shared_dplls_info
> in display_debug_fs.

There's no display_debug_fs...

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


>
> Signed-off-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
> ---
>  .../gpu/drm/i915/display/intel_crtc_state_dump.c |  3 ++-
>  drivers/gpu/drm/i915/display/intel_display.c     |  8 ++++----
>  .../gpu/drm/i915/display/intel_display_debugfs.c |  3 +--
>  drivers/gpu/drm/i915/display/intel_dpll_mgr.c    | 16 ++++++++--------
>  drivers/gpu/drm/i915/display/intel_dpll_mgr.h    |  4 ++--
>  5 files changed, 17 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
> index ecd0d9853c60..599ddce96371 100644
> --- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
> +++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
> @@ -176,6 +176,7 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
>  			   struct intel_atomic_state *state,
>  			   const char *context)
>  {
> +	struct intel_display *display = to_intel_display(pipe_config);
>  	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
>  	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>  	const struct intel_plane_state *plane_state;
> @@ -340,7 +341,7 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
>  		   pipe_config->ips_enabled, pipe_config->double_wide,
>  		   pipe_config->has_drrs);
>  
> -	intel_dpll_dump_hw_state(i915, &p, &pipe_config->dpll_hw_state);
> +	intel_dpll_dump_hw_state(display, &p, &pipe_config->dpll_hw_state);
>  
>  	if (IS_CHERRYVIEW(i915))
>  		drm_printf(&p, "cgm_mode: 0x%x gamma_mode: 0x%x gamma_enable: %d csc_enable: %d\n",
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 9f8a8c94cf4c..5f4b1d8eed3e 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -5348,14 +5348,14 @@ pipe_config_pll_mismatch(struct drm_printer *p, bool fastset,
>  			 const struct intel_dpll_hw_state *a,
>  			 const struct intel_dpll_hw_state *b)
>  {
> -	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	struct intel_display *display = to_intel_display(crtc);
>  
>  	pipe_config_mismatch(p, fastset, crtc, name, " "); /* stupid -Werror=format-zero-length */
>  
>  	drm_printf(p, "expected:\n");
> -	intel_dpll_dump_hw_state(i915, p, a);
> +	intel_dpll_dump_hw_state(display, p, a);
>  	drm_printf(p, "found:\n");
> -	intel_dpll_dump_hw_state(i915, p, b);
> +	intel_dpll_dump_hw_state(display, p, b);
>  }
>  
>  static void
> @@ -5495,7 +5495,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
>  } while (0)
>  
>  #define PIPE_CONF_CHECK_PLL(name) do { \
> -	if (!intel_dpll_compare_hw_state(dev_priv, &current_config->name, \
> +	if (!intel_dpll_compare_hw_state(display, &current_config->name, \
>  					 &pipe_config->name)) { \
>  		pipe_config_pll_mismatch(&p, fastset, crtc, __stringify(name), \
>  					 &current_config->name, \
> diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> index 87e6f4000101..970b8078db8b 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> @@ -630,7 +630,6 @@ static int i915_display_capabilities(struct seq_file *m, void *unused)
>  
>  static int i915_shared_dplls_info(struct seq_file *m, void *unused)
>  {
> -	struct drm_i915_private *dev_priv = node_to_i915(m->private);
>  	struct intel_display *display = node_to_intel_display(m->private);
>  	struct drm_printer p = drm_seq_file_printer(m);
>  	struct intel_shared_dpll *pll;
> @@ -649,7 +648,7 @@ static int i915_shared_dplls_info(struct seq_file *m, void *unused)
>  			   pll->state.pipe_mask, pll->active_mask,
>  			   str_yes_no(pll->on));
>  		drm_printf(&p, " tracked hardware state:\n");
> -		intel_dpll_dump_hw_state(dev_priv, &p, &pll->state.hw_state);
> +		intel_dpll_dump_hw_state(display, &p, &pll->state.hw_state);
>  	}
>  	drm_modeset_unlock_all(display->drm);
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> index 171d16e91c61..ee4e263ce999 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> @@ -4592,18 +4592,18 @@ void intel_dpll_sanitize_state(struct drm_i915_private *i915)
>  
>  /**
>   * intel_dpll_dump_hw_state - dump hw_state
> - * @i915: i915 drm device
> + * @display: intel_display structure
>   * @p: where to print the state to
>   * @dpll_hw_state: hw state to be dumped
>   *
>   * Dumo out the relevant values in @dpll_hw_state.
>   */
> -void intel_dpll_dump_hw_state(struct drm_i915_private *i915,
> +void intel_dpll_dump_hw_state(struct intel_display *display,
>  			      struct drm_printer *p,
>  			      const struct intel_dpll_hw_state *dpll_hw_state)
>  {
> -	if (i915->display.dpll.mgr) {
> -		i915->display.dpll.mgr->dump_hw_state(p, dpll_hw_state);
> +	if (display->dpll.mgr) {
> +		display->dpll.mgr->dump_hw_state(p, dpll_hw_state);
>  	} else {
>  		/* fallback for platforms that don't use the shared dpll
>  		 * infrastructure
> @@ -4614,7 +4614,7 @@ void intel_dpll_dump_hw_state(struct drm_i915_private *i915,
>  
>  /**
>   * intel_dpll_compare_hw_state - compare the two states
> - * @i915: i915 drm device
> + * @display: intel_display structure
>   * @a: first DPLL hw state
>   * @b: second DPLL hw state
>   *
> @@ -4622,12 +4622,12 @@ void intel_dpll_dump_hw_state(struct drm_i915_private *i915,
>   *
>   * Returns: true if the states are equal, false if the differ
>   */
> -bool intel_dpll_compare_hw_state(struct drm_i915_private *i915,
> +bool intel_dpll_compare_hw_state(struct intel_display *display,
>  				 const struct intel_dpll_hw_state *a,
>  				 const struct intel_dpll_hw_state *b)
>  {
> -	if (i915->display.dpll.mgr) {
> -		return i915->display.dpll.mgr->compare_hw_state(a, b);
> +	if (display->dpll.mgr) {
> +		return display->dpll.mgr->compare_hw_state(a, b);
>  	} else {
>  		/* fallback for platforms that don't use the shared dpll
>  		 * infrastructure
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> index 382bdf8f0b65..42379494f347 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> @@ -427,10 +427,10 @@ void intel_dpll_update_ref_clks(struct drm_i915_private *i915);
>  void intel_dpll_readout_hw_state(struct drm_i915_private *i915);
>  void intel_dpll_sanitize_state(struct drm_i915_private *i915);
>  
> -void intel_dpll_dump_hw_state(struct drm_i915_private *i915,
> +void intel_dpll_dump_hw_state(struct intel_display *display,
>  			      struct drm_printer *p,
>  			      const struct intel_dpll_hw_state *dpll_hw_state);
> -bool intel_dpll_compare_hw_state(struct drm_i915_private *i915,
> +bool intel_dpll_compare_hw_state(struct intel_display *display,
>  				 const struct intel_dpll_hw_state *a,
>  				 const struct intel_dpll_hw_state *b);
>  enum intel_dpll_id icl_tc_port_to_pll_id(enum tc_port tc_port);

-- 
Jani Nikula, Intel
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