diff mbox series

[12/13] drm/i915: Introduce intel_panel_{fixed, downclock}_mode()

Message ID 20220310004802.16310-13-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915: DRRS fixes/cleanups and start of static DRRS | expand

Commit Message

Ville Syrjälä March 10, 2022, 12:48 a.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Absract away the details on where we store the fixed/downclock modes,
and also how we select them. Will be useful for static DRRS (aka.
allowing the user to select the refresh rate for the panel).

Only hooked these up into the DP code for now since that's
the only one that can do DRRS atm.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c    |  7 +++++--
 drivers/gpu/drm/i915/display/intel_drrs.c  | 11 +++++++----
 drivers/gpu/drm/i915/display/intel_panel.c | 20 ++++++++++++++++++--
 drivers/gpu/drm/i915/display/intel_panel.h |  8 ++++++--
 4 files changed, 36 insertions(+), 10 deletions(-)

Comments

Jani Nikula March 10, 2022, 10:09 a.m. UTC | #1 
On Thu, 10 Mar 2022, Ville Syrjala <ville.syrjala@linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Absract away the details on where we store the fixed/downclock modes,
> and also how we select them. Will be useful for static DRRS (aka.
> allowing the user to select the refresh rate for the panel).
>
> Only hooked these up into the DP code for now since that's
> the only one that can do DRRS atm.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Could justify passing the mode parameter to the functions in the commit
message, as they're not needed here.

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

> ---
>  drivers/gpu/drm/i915/display/intel_dp.c    |  7 +++++--
>  drivers/gpu/drm/i915/display/intel_drrs.c  | 11 +++++++----
>  drivers/gpu/drm/i915/display/intel_panel.c | 20 ++++++++++++++++++--
>  drivers/gpu/drm/i915/display/intel_panel.h |  8 ++++++--
>  4 files changed, 36 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 725c3350c923..af659320c02e 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -918,8 +918,8 @@ intel_dp_mode_valid(struct drm_connector *connector,
>  {
>  	struct intel_dp *intel_dp = intel_attached_dp(to_intel_connector(connector));
>  	struct intel_connector *intel_connector = to_intel_connector(connector);
> -	struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
>  	struct drm_i915_private *dev_priv = to_i915(connector->dev);
> +	const struct drm_display_mode *fixed_mode;
>  	int target_clock = mode->clock;
>  	int max_rate, mode_rate, max_lanes, max_link_clock;
>  	int max_dotclk = dev_priv->max_dotclk_freq;
> @@ -934,6 +934,7 @@ intel_dp_mode_valid(struct drm_connector *connector,
>  	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
>  		return MODE_H_ILLEGAL;
>  
> +	fixed_mode = intel_panel_fixed_mode(intel_connector, mode);
>  	if (intel_dp_is_edp(intel_dp) && fixed_mode) {
>  		status = intel_panel_mode_valid(intel_connector, mode);
>  		if (status != MODE_OK)
> @@ -1797,6 +1798,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
>  	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
>  	struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
>  	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
> +	const struct drm_display_mode *fixed_mode;
>  	enum port port = encoder->port;
>  	struct intel_connector *intel_connector = intel_dp->attached_connector;
>  	struct intel_digital_connector_state *intel_conn_state =
> @@ -1823,7 +1825,8 @@ intel_dp_compute_config(struct intel_encoder *encoder,
>  	else
>  		pipe_config->has_audio = intel_conn_state->force_audio == HDMI_AUDIO_ON;
>  
> -	if (intel_dp_is_edp(intel_dp) && intel_connector->panel.fixed_mode) {
> +	fixed_mode = intel_panel_fixed_mode(intel_connector, adjusted_mode);
> +	if (intel_dp_is_edp(intel_dp) && fixed_mode) {
>  		ret = intel_panel_compute_config(intel_connector, adjusted_mode);
>  		if (ret)
>  			return ret;
> diff --git a/drivers/gpu/drm/i915/display/intel_drrs.c b/drivers/gpu/drm/i915/display/intel_drrs.c
> index dcbbd9c48458..5b2eb55c1340 100644
> --- a/drivers/gpu/drm/i915/display/intel_drrs.c
> +++ b/drivers/gpu/drm/i915/display/intel_drrs.c
> @@ -48,7 +48,8 @@
>   */
>  
>  static bool can_enable_drrs(struct intel_connector *connector,
> -			    const struct intel_crtc_state *pipe_config)
> +			    const struct intel_crtc_state *pipe_config,
> +			    const struct drm_display_mode *downclock_mode)
>  {
>  	const struct drm_i915_private *i915 = to_i915(connector->base.dev);
>  
> @@ -64,7 +65,7 @@ static bool can_enable_drrs(struct intel_connector *connector,
>  	if (pipe_config->has_psr)
>  		return false;
>  
> -	return connector->panel.downclock_mode &&
> +	return downclock_mode &&
>  		i915->vbt.drrs_type == DRRS_TYPE_SEAMLESS;
>  }
>  
> @@ -74,9 +75,11 @@ intel_drrs_compute_config(struct intel_crtc_state *pipe_config,
>  			  int output_bpp, bool constant_n)
>  {
>  	struct drm_i915_private *i915 = to_i915(connector->base.dev);
> +	const struct drm_display_mode *downclock_mode =
> +		intel_panel_downclock_mode(connector, &pipe_config->hw.adjusted_mode);
>  	int pixel_clock;
>  
> -	if (!can_enable_drrs(connector, pipe_config)) {
> +	if (!can_enable_drrs(connector, pipe_config, downclock_mode)) {
>  		if (intel_cpu_transcoder_has_m2_n2(i915, pipe_config->cpu_transcoder))
>  			intel_zero_m_n(&pipe_config->dp_m2_n2);
>  		return;
> @@ -87,7 +90,7 @@ intel_drrs_compute_config(struct intel_crtc_state *pipe_config,
>  
>  	pipe_config->has_drrs = true;
>  
> -	pixel_clock = connector->panel.downclock_mode->clock;
> +	pixel_clock = downclock_mode->clock;
>  	if (pipe_config->splitter.enable)
>  		pixel_clock /= pipe_config->splitter.link_count;
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c
> index 6cd6d4fdd5ad..127ad9643360 100644
> --- a/drivers/gpu/drm/i915/display/intel_panel.c
> +++ b/drivers/gpu/drm/i915/display/intel_panel.c
> @@ -45,10 +45,25 @@ bool intel_panel_use_ssc(struct drm_i915_private *i915)
>  		&& !(i915->quirks & QUIRK_LVDS_SSC_DISABLE);
>  }
>  
> +const struct drm_display_mode *
> +intel_panel_fixed_mode(struct intel_connector *connector,
> +		       const struct drm_display_mode *mode)
> +{
> +	return connector->panel.fixed_mode;
> +}
> +
> +const struct drm_display_mode *
> +intel_panel_downclock_mode(struct intel_connector *connector,
> +			   const struct drm_display_mode *fixed_mode)
> +{
> +	return connector->panel.downclock_mode;
> +}
> +
>  int intel_panel_compute_config(struct intel_connector *connector,
>  			       struct drm_display_mode *adjusted_mode)
>  {
> -	const struct drm_display_mode *fixed_mode = connector->panel.fixed_mode;
> +	const struct drm_display_mode *fixed_mode =
> +		intel_panel_fixed_mode(connector, adjusted_mode);
>  
>  	if (!fixed_mode)
>  		return 0;
> @@ -508,7 +523,8 @@ enum drm_mode_status
>  intel_panel_mode_valid(struct intel_connector *connector,
>  		       const struct drm_display_mode *mode)
>  {
> -	const struct drm_display_mode *fixed_mode = connector->panel.fixed_mode;
> +	const struct drm_display_mode *fixed_mode =
> +		intel_panel_fixed_mode(connector, mode);
>  
>  	if (!fixed_mode)
>  		return MODE_OK;
> diff --git a/drivers/gpu/drm/i915/display/intel_panel.h b/drivers/gpu/drm/i915/display/intel_panel.h
> index d50b3f7e9e58..6d4df0e54ef2 100644
> --- a/drivers/gpu/drm/i915/display/intel_panel.h
> +++ b/drivers/gpu/drm/i915/display/intel_panel.h
> @@ -24,8 +24,12 @@ void intel_panel_fini(struct intel_panel *panel);
>  enum drm_connector_status
>  intel_panel_detect(struct drm_connector *connector, bool force);
>  bool intel_panel_use_ssc(struct drm_i915_private *i915);
> -void intel_panel_fixed_mode(const struct drm_display_mode *fixed_mode,
> -			    struct drm_display_mode *adjusted_mode);
> +const struct drm_display_mode *
> +intel_panel_fixed_mode(struct intel_connector *connector,
> +		       const struct drm_display_mode *mode);
> +const struct drm_display_mode *
> +intel_panel_downclock_mode(struct intel_connector *connector,
> +			   const struct drm_display_mode *fixed_mode);
>  enum drm_mode_status
>  intel_panel_mode_valid(struct intel_connector *connector,
>  		       const struct drm_display_mode *mode);
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 725c3350c923..af659320c02e 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -918,8 +918,8 @@  intel_dp_mode_valid(struct drm_connector *connector,
 {
 	struct intel_dp *intel_dp = intel_attached_dp(to_intel_connector(connector));
 	struct intel_connector *intel_connector = to_intel_connector(connector);
-	struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
 	struct drm_i915_private *dev_priv = to_i915(connector->dev);
+	const struct drm_display_mode *fixed_mode;
 	int target_clock = mode->clock;
 	int max_rate, mode_rate, max_lanes, max_link_clock;
 	int max_dotclk = dev_priv->max_dotclk_freq;
@@ -934,6 +934,7 @@  intel_dp_mode_valid(struct drm_connector *connector,
 	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
 		return MODE_H_ILLEGAL;
 
+	fixed_mode = intel_panel_fixed_mode(intel_connector, mode);
 	if (intel_dp_is_edp(intel_dp) && fixed_mode) {
 		status = intel_panel_mode_valid(intel_connector, mode);
 		if (status != MODE_OK)
@@ -1797,6 +1798,7 @@  intel_dp_compute_config(struct intel_encoder *encoder,
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+	const struct drm_display_mode *fixed_mode;
 	enum port port = encoder->port;
 	struct intel_connector *intel_connector = intel_dp->attached_connector;
 	struct intel_digital_connector_state *intel_conn_state =
@@ -1823,7 +1825,8 @@  intel_dp_compute_config(struct intel_encoder *encoder,
 	else
 		pipe_config->has_audio = intel_conn_state->force_audio == HDMI_AUDIO_ON;
 
-	if (intel_dp_is_edp(intel_dp) && intel_connector->panel.fixed_mode) {
+	fixed_mode = intel_panel_fixed_mode(intel_connector, adjusted_mode);
+	if (intel_dp_is_edp(intel_dp) && fixed_mode) {
 		ret = intel_panel_compute_config(intel_connector, adjusted_mode);
 		if (ret)
 			return ret;
diff --git a/drivers/gpu/drm/i915/display/intel_drrs.c b/drivers/gpu/drm/i915/display/intel_drrs.c
index dcbbd9c48458..5b2eb55c1340 100644
--- a/drivers/gpu/drm/i915/display/intel_drrs.c
+++ b/drivers/gpu/drm/i915/display/intel_drrs.c
@@ -48,7 +48,8 @@ 
  */
 
 static bool can_enable_drrs(struct intel_connector *connector,
-			    const struct intel_crtc_state *pipe_config)
+			    const struct intel_crtc_state *pipe_config,
+			    const struct drm_display_mode *downclock_mode)
 {
 	const struct drm_i915_private *i915 = to_i915(connector->base.dev);
 
@@ -64,7 +65,7 @@  static bool can_enable_drrs(struct intel_connector *connector,
 	if (pipe_config->has_psr)
 		return false;
 
-	return connector->panel.downclock_mode &&
+	return downclock_mode &&
 		i915->vbt.drrs_type == DRRS_TYPE_SEAMLESS;
 }
 
@@ -74,9 +75,11 @@  intel_drrs_compute_config(struct intel_crtc_state *pipe_config,
 			  int output_bpp, bool constant_n)
 {
 	struct drm_i915_private *i915 = to_i915(connector->base.dev);
+	const struct drm_display_mode *downclock_mode =
+		intel_panel_downclock_mode(connector, &pipe_config->hw.adjusted_mode);
 	int pixel_clock;
 
-	if (!can_enable_drrs(connector, pipe_config)) {
+	if (!can_enable_drrs(connector, pipe_config, downclock_mode)) {
 		if (intel_cpu_transcoder_has_m2_n2(i915, pipe_config->cpu_transcoder))
 			intel_zero_m_n(&pipe_config->dp_m2_n2);
 		return;
@@ -87,7 +90,7 @@  intel_drrs_compute_config(struct intel_crtc_state *pipe_config,
 
 	pipe_config->has_drrs = true;
 
-	pixel_clock = connector->panel.downclock_mode->clock;
+	pixel_clock = downclock_mode->clock;
 	if (pipe_config->splitter.enable)
 		pixel_clock /= pipe_config->splitter.link_count;
 
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c
index 6cd6d4fdd5ad..127ad9643360 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.c
+++ b/drivers/gpu/drm/i915/display/intel_panel.c
@@ -45,10 +45,25 @@  bool intel_panel_use_ssc(struct drm_i915_private *i915)
 		&& !(i915->quirks & QUIRK_LVDS_SSC_DISABLE);
 }
 
+const struct drm_display_mode *
+intel_panel_fixed_mode(struct intel_connector *connector,
+		       const struct drm_display_mode *mode)
+{
+	return connector->panel.fixed_mode;
+}
+
+const struct drm_display_mode *
+intel_panel_downclock_mode(struct intel_connector *connector,
+			   const struct drm_display_mode *fixed_mode)
+{
+	return connector->panel.downclock_mode;
+}
+
 int intel_panel_compute_config(struct intel_connector *connector,
 			       struct drm_display_mode *adjusted_mode)
 {
-	const struct drm_display_mode *fixed_mode = connector->panel.fixed_mode;
+	const struct drm_display_mode *fixed_mode =
+		intel_panel_fixed_mode(connector, adjusted_mode);
 
 	if (!fixed_mode)
 		return 0;
@@ -508,7 +523,8 @@  enum drm_mode_status
 intel_panel_mode_valid(struct intel_connector *connector,
 		       const struct drm_display_mode *mode)
 {
-	const struct drm_display_mode *fixed_mode = connector->panel.fixed_mode;
+	const struct drm_display_mode *fixed_mode =
+		intel_panel_fixed_mode(connector, mode);
 
 	if (!fixed_mode)
 		return MODE_OK;
diff --git a/drivers/gpu/drm/i915/display/intel_panel.h b/drivers/gpu/drm/i915/display/intel_panel.h
index d50b3f7e9e58..6d4df0e54ef2 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.h
+++ b/drivers/gpu/drm/i915/display/intel_panel.h
@@ -24,8 +24,12 @@  void intel_panel_fini(struct intel_panel *panel);
 enum drm_connector_status
 intel_panel_detect(struct drm_connector *connector, bool force);
 bool intel_panel_use_ssc(struct drm_i915_private *i915);
-void intel_panel_fixed_mode(const struct drm_display_mode *fixed_mode,
-			    struct drm_display_mode *adjusted_mode);
+const struct drm_display_mode *
+intel_panel_fixed_mode(struct intel_connector *connector,
+		       const struct drm_display_mode *mode);
+const struct drm_display_mode *
+intel_panel_downclock_mode(struct intel_connector *connector,
+			   const struct drm_display_mode *fixed_mode);
 enum drm_mode_status
 intel_panel_mode_valid(struct intel_connector *connector,
 		       const struct drm_display_mode *mode);