[v7,5/6] drm/i915/hdcp: updating the transcoder of the hdcp port
diff mbox series

Message ID 20190822111445.29350-6-ramalingam.c@intel.com
State New
Headers show
Series
  • drm/i915: Enable HDCP 1.4 and 2.2 on Gen12+
Related show

Commit Message

Ramalingam C Aug. 22, 2019, 11:14 a.m. UTC
On gen12+ platforms, HDCP HW is associated to the transcoder.
Hence on every modeset associated transcoder is updated into the
intel_hdcp.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
---
 .../drm/i915/display/intel_display_types.h    |  7 +++
 drivers/gpu/drm/i915/display/intel_dp.c       |  3 ++
 drivers/gpu/drm/i915/display/intel_hdcp.c     | 49 ++++++++++++++++++-
 drivers/gpu/drm/i915/display/intel_hdcp.h     |  2 +
 drivers/gpu/drm/i915/display/intel_hdmi.c     |  3 ++
 5 files changed, 63 insertions(+), 1 deletion(-)

Comments

Jani Nikula Aug. 22, 2019, 11:45 a.m. UTC | #1
On Thu, 22 Aug 2019, Ramalingam C <ramalingam.c@intel.com> wrote:
> On gen12+ platforms, HDCP HW is associated to the transcoder.
> Hence on every modeset associated transcoder is updated into the
> intel_hdcp.
>
> Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
> ---
>  .../drm/i915/display/intel_display_types.h    |  7 +++
>  drivers/gpu/drm/i915/display/intel_dp.c       |  3 ++
>  drivers/gpu/drm/i915/display/intel_hdcp.c     | 49 ++++++++++++++++++-
>  drivers/gpu/drm/i915/display/intel_hdcp.h     |  2 +
>  drivers/gpu/drm/i915/display/intel_hdmi.c     |  3 ++
>  5 files changed, 63 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 449abaea619f..c6b9f7198ee3 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -388,6 +388,13 @@ struct intel_hdcp {
>  	wait_queue_head_t cp_irq_queue;
>  	atomic_t cp_irq_count;
>  	int cp_irq_count_cached;
> +
> +	/*
> +	 * HDCP register access for gen12+ need the transcoder associated.
> +	 * Transcoder attached to the connector could be changed at modeset.
> +	 * Hence caching the transcoder here.
> +	 */
> +	enum transcoder trans;

$ git grep "enum transcoder" -- drivers/gpu/drm/i915/

Please call this cpu_transcoder.


>  };
>  
>  struct intel_connector {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 921ad0a2f7ba..ba5317d56da7 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -2244,6 +2244,9 @@ intel_dp_compute_config(struct intel_encoder *encoder,
>  
>  	intel_psr_compute_config(intel_dp, pipe_config);
>  
> +	intel_hdcp_transcoder_config(intel_connector,
> +				     pipe_config->cpu_transcoder);
> +
>  	return 0;
>  }
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
> index 534832f435dc..264bda5d484c 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
> @@ -1762,13 +1762,60 @@ enum mei_fw_ddi intel_get_mei_fw_ddi_index(enum port port)
>  	}
>  }
>  
> +static inline
> +enum mei_fw_tc intel_get_mei_fw_tc(enum transcoder tc)

enum transcoder trancoder or enum transcoder cpu_transcoder.

> +{
> +	switch (tc) {
> +	case TRANSCODER_A ... TRANSCODER_D:
> +		return (enum mei_fw_tc)(tc | 0x10);
> +	case TRANSCODER_EDP:
> +		return MEI_TC_EDP;
> +	case TRANSCODER_DSI_0:
> +		return MEI_TC_DSI0;
> +	case TRANSCODER_DSI_1:
> +		return MEI_TC_DSI1;
> +	default:
> +		return MEI_INVALID_TRANSCODER;
> +	}
> +}
> +
> +void intel_hdcp_transcoder_config(struct intel_connector *connector,
> +				  enum transcoder trans)

enum transcoder trancoder or enum transcoder cpu_transcoder.

> +{
> +	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> +	struct intel_hdcp *hdcp = &connector->hdcp;
> +
> +	if (!hdcp->shim)
> +		return;
> +
> +	if (INTEL_GEN(dev_priv) >= 12) {
> +		mutex_lock(&hdcp->mutex);
> +		hdcp->trans = trans;
> +		hdcp->port_data.fw_tc = intel_get_mei_fw_tc(trans);
> +		mutex_unlock(&hdcp->mutex);
> +	}
> +}
> +
>  static inline int initialize_hdcp_port_data(struct intel_connector *connector,
>  					    const struct intel_hdcp_shim *shim)
>  {
> +	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
>  	struct intel_hdcp *hdcp = &connector->hdcp;
>  	struct hdcp_port_data *data = &hdcp->port_data;
> +	struct intel_crtc *crtc;
> +
> +	if (INTEL_GEN(dev_priv) < 12) {
> +		data->fw_ddi =
> +			intel_get_mei_fw_ddi_index(connector->encoder->port);
> +	} else {
> +		crtc = to_intel_crtc(connector->base.state->crtc);
> +		if (crtc) {
> +			hdcp->trans = crtc->config->cpu_transcoder;
> +			data->fw_tc = intel_get_mei_fw_tc(hdcp->trans);
> +		}
> +		data->fw_ddi = intel_get_mei_fw_ddi_index(PORT_NONE);
> +	}
>  
> -	data->fw_ddi = intel_get_mei_fw_ddi_index(connector->encoder->port);
>  	data->port_type = (u8)HDCP_PORT_TYPE_INTEGRATED;
>  	data->protocol = (u8)shim->protocol;
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h b/drivers/gpu/drm/i915/display/intel_hdcp.h
> index 13555b054930..1041b2c11fe9 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.h
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.h
> @@ -19,6 +19,8 @@ struct intel_hdcp_shim;
>  void intel_hdcp_atomic_check(struct drm_connector *connector,
>  			     struct drm_connector_state *old_state,
>  			     struct drm_connector_state *new_state);
> +void intel_hdcp_transcoder_config(struct intel_connector *connector,
> +				  enum transcoder trans);

enum transcoder trancoder or enum transcoder cpu_transcoder.

>  int intel_hdcp_init(struct intel_connector *connector,
>  		    const struct intel_hdcp_shim *hdcp_shim);
>  int intel_hdcp_enable(struct intel_connector *connector, u8 content_type);
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
> index e02f0faecf02..6e9bb6bd1ee2 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
> @@ -2431,6 +2431,9 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder,
>  		return -EINVAL;
>  	}
>  
> +	intel_hdcp_transcoder_config(intel_hdmi->attached_connector,
> +				     pipe_config->cpu_transcoder);
> +
>  	return 0;
>  }

Patch
diff mbox series

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 449abaea619f..c6b9f7198ee3 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -388,6 +388,13 @@  struct intel_hdcp {
 	wait_queue_head_t cp_irq_queue;
 	atomic_t cp_irq_count;
 	int cp_irq_count_cached;
+
+	/*
+	 * HDCP register access for gen12+ need the transcoder associated.
+	 * Transcoder attached to the connector could be changed at modeset.
+	 * Hence caching the transcoder here.
+	 */
+	enum transcoder trans;
 };
 
 struct intel_connector {
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 921ad0a2f7ba..ba5317d56da7 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2244,6 +2244,9 @@  intel_dp_compute_config(struct intel_encoder *encoder,
 
 	intel_psr_compute_config(intel_dp, pipe_config);
 
+	intel_hdcp_transcoder_config(intel_connector,
+				     pipe_config->cpu_transcoder);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 534832f435dc..264bda5d484c 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -1762,13 +1762,60 @@  enum mei_fw_ddi intel_get_mei_fw_ddi_index(enum port port)
 	}
 }
 
+static inline
+enum mei_fw_tc intel_get_mei_fw_tc(enum transcoder tc)
+{
+	switch (tc) {
+	case TRANSCODER_A ... TRANSCODER_D:
+		return (enum mei_fw_tc)(tc | 0x10);
+	case TRANSCODER_EDP:
+		return MEI_TC_EDP;
+	case TRANSCODER_DSI_0:
+		return MEI_TC_DSI0;
+	case TRANSCODER_DSI_1:
+		return MEI_TC_DSI1;
+	default:
+		return MEI_INVALID_TRANSCODER;
+	}
+}
+
+void intel_hdcp_transcoder_config(struct intel_connector *connector,
+				  enum transcoder trans)
+{
+	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+	struct intel_hdcp *hdcp = &connector->hdcp;
+
+	if (!hdcp->shim)
+		return;
+
+	if (INTEL_GEN(dev_priv) >= 12) {
+		mutex_lock(&hdcp->mutex);
+		hdcp->trans = trans;
+		hdcp->port_data.fw_tc = intel_get_mei_fw_tc(trans);
+		mutex_unlock(&hdcp->mutex);
+	}
+}
+
 static inline int initialize_hdcp_port_data(struct intel_connector *connector,
 					    const struct intel_hdcp_shim *shim)
 {
+	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct intel_hdcp *hdcp = &connector->hdcp;
 	struct hdcp_port_data *data = &hdcp->port_data;
+	struct intel_crtc *crtc;
+
+	if (INTEL_GEN(dev_priv) < 12) {
+		data->fw_ddi =
+			intel_get_mei_fw_ddi_index(connector->encoder->port);
+	} else {
+		crtc = to_intel_crtc(connector->base.state->crtc);
+		if (crtc) {
+			hdcp->trans = crtc->config->cpu_transcoder;
+			data->fw_tc = intel_get_mei_fw_tc(hdcp->trans);
+		}
+		data->fw_ddi = intel_get_mei_fw_ddi_index(PORT_NONE);
+	}
 
-	data->fw_ddi = intel_get_mei_fw_ddi_index(connector->encoder->port);
 	data->port_type = (u8)HDCP_PORT_TYPE_INTEGRATED;
 	data->protocol = (u8)shim->protocol;
 
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h b/drivers/gpu/drm/i915/display/intel_hdcp.h
index 13555b054930..1041b2c11fe9 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.h
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.h
@@ -19,6 +19,8 @@  struct intel_hdcp_shim;
 void intel_hdcp_atomic_check(struct drm_connector *connector,
 			     struct drm_connector_state *old_state,
 			     struct drm_connector_state *new_state);
+void intel_hdcp_transcoder_config(struct intel_connector *connector,
+				  enum transcoder trans);
 int intel_hdcp_init(struct intel_connector *connector,
 		    const struct intel_hdcp_shim *hdcp_shim);
 int intel_hdcp_enable(struct intel_connector *connector, u8 content_type);
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index e02f0faecf02..6e9bb6bd1ee2 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2431,6 +2431,9 @@  int intel_hdmi_compute_config(struct intel_encoder *encoder,
 		return -EINVAL;
 	}
 
+	intel_hdcp_transcoder_config(intel_hdmi->attached_connector,
+				     pipe_config->cpu_transcoder);
+
 	return 0;
 }