[v9,06/13] drm/i915: Write HDR infoframe and send to panel
diff mbox series

Message ID 1557340733-9629-7-git-send-email-uma.shankar@intel.com
State New
Headers show
Series
  • Add HDR Metadata Parsing and handling in DRM layer
Related show

Commit Message

Shankar, Uma May 8, 2019, 6:38 p.m. UTC
Enable writing of HDR metadata infoframe to panel.
The data will be provid by usersapace compositors, based
on blending policies and passsed to driver through a blob
property.

v2: Rebase

v3: Fixed a warning message

v4: Addressed Shashank's review comments

v5: Rebase. Added infoframe calculation in compute config.

v6: Addressed Shashank's review comment. Added HDR metadata
support from GEN10 onwards as per Shashank's recommendation.

v7: Addressed Shashank's review comments

v8: Added Shashank's RB.

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
---
 drivers/gpu/drm/i915/intel_drv.h  |  1 +
 drivers/gpu/drm/i915/intel_hdmi.c | 48 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)

Comments

Ville Syrjälä May 13, 2019, 7:35 p.m. UTC | #1
On Thu, May 09, 2019 at 12:08:46AM +0530, Uma Shankar wrote:
> Enable writing of HDR metadata infoframe to panel.
> The data will be provid by usersapace compositors, based
> on blending policies and passsed to driver through a blob
> property.
> 
> v2: Rebase
> 
> v3: Fixed a warning message
> 
> v4: Addressed Shashank's review comments
> 
> v5: Rebase. Added infoframe calculation in compute config.
> 
> v6: Addressed Shashank's review comment. Added HDR metadata
> support from GEN10 onwards as per Shashank's recommendation.
> 
> v7: Addressed Shashank's review comments
> 
> v8: Added Shashank's RB.
> 
> Signed-off-by: Uma Shankar <uma.shankar@intel.com>
> Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_drv.h  |  1 +
>  drivers/gpu/drm/i915/intel_hdmi.c | 48 +++++++++++++++++++++++++++++++++++++++
>  2 files changed, 49 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 247893e..bc32b2c 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -910,6 +910,7 @@ struct intel_crtc_state {
>  		union hdmi_infoframe avi;
>  		union hdmi_infoframe spd;
>  		union hdmi_infoframe hdmi;
> +		union hdmi_infoframe drm;
>  	} infoframes;
>  
>  	/* HDMI scrambling status */
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> index 92597d8..980900b 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -573,6 +573,7 @@ static u32 hsw_infoframes_enabled(struct intel_encoder *encoder,
>  	HDMI_INFOFRAME_TYPE_AVI,
>  	HDMI_INFOFRAME_TYPE_SPD,
>  	HDMI_INFOFRAME_TYPE_VENDOR,
> +	HDMI_INFOFRAME_TYPE_DRM,
>  };
>  
>  u32 intel_hdmi_infoframe_enable(unsigned int type)
> @@ -795,6 +796,30 @@ void intel_read_infoframe(struct intel_encoder *encoder,
>  	return true;
>  }
>  
> +static bool
> +intel_hdmi_compute_drm_infoframe(struct intel_encoder *encoder,
> +				 struct intel_crtc_state *crtc_state,
> +				 struct drm_connector_state *conn_state)
> +{
> +	struct hdmi_drm_infoframe *frame = &crtc_state->infoframes.drm.drm;
> +	struct hdr_output_metadata *hdr_metadata;
> +	int ret;

Missing has_infoframes check.

> +
> +	hdr_metadata = (struct hdr_output_metadata *)

Pointless cast?

> +			conn_state->hdr_output_metadata->data;

NULL pointer deref? Hmm, how does this pass CI?

> +
> +	ret = drm_hdmi_infoframe_set_hdr_metadata(frame, hdr_metadata);
> +	if (ret < 0) {
> +		DRM_ERROR("couldn't set HDR metadata in infoframe\n");
> +		return false;
> +	}
> +
> +	crtc_state->infoframes.enable |=
> +		intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_DRM);

Everyone else sets this before populating the infoframe.

Missing the whatever_infoframe_check() call here.

> +
> +	return true;
> +}
> +
>  static void g4x_set_infoframes(struct intel_encoder *encoder,
>  			       bool enable,
>  			       const struct intel_crtc_state *crtc_state,
> @@ -1180,6 +1205,16 @@ static void hsw_set_infoframes(struct intel_encoder *encoder,
>  	intel_write_infoframe(encoder, crtc_state,
>  			      HDMI_INFOFRAME_TYPE_VENDOR,
>  			      &crtc_state->infoframes.hdmi);
> +
> +	/*
> +	 * Support HDR Metadata from Gen10 onwards
> +	 * ToDo: Gen9 also can support HDR with LSPCON.
> +	 * Support for the same to be enabled later.
> +	 */
> +	if (INTEL_GEN(dev_priv) >= 10)

Missing glk. Actually this check can be removed entirely since
intel_write_infoframe() already checks infoframes.enable.

> +		intel_write_infoframe(encoder, crtc_state,
> +				      HDMI_INFOFRAME_TYPE_DRM,
> +				      &crtc_state->infoframes.drm);
>  }
>  
>  void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable)
> @@ -2386,6 +2421,19 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder,
>  		return -EINVAL;
>  	}
>  
> +	/*
> +	 * Support HDR Metadata from Gen10 onwards

This is not providing extra information beyond what the code is saying.

> +	 * ToDo: Gen9 also can support HDR with LSPCON.
> +	 * Support for the same to be enabled later.

This is native HDMI code. LSPCON fixme doesn't make sense here.

> +	 */
> +	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {

For GCP the platform check is in the function itself. Could do the same
here for consistency.

> +		if (!intel_hdmi_compute_drm_infoframe(encoder, pipe_config,
> +						      conn_state)) {
> +			DRM_DEBUG_KMS("bad DRM infoframe\n");
> +			return -EINVAL;
> +		}
> +	}
> +
>  	return 0;
>  }
>  
> -- 
> 1.9.1
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
Shankar, Uma May 14, 2019, 10:22 a.m. UTC | #2
>-----Original Message-----
>From: Ville Syrjälä [mailto:ville.syrjala@linux.intel.com]
>Sent: Tuesday, May 14, 2019 1:06 AM
>To: Shankar, Uma <uma.shankar@intel.com>
>Cc: intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org;
>dcastagna@chromium.org; jonas@kwiboo.se; emil.l.velikov@gmail.com;
>seanpaul@chromium.org; Syrjala, Ville <ville.syrjala@intel.com>; Lankhorst, Maarten
><maarten.lankhorst@intel.com>
>Subject: Re: [v9 06/13] drm/i915: Write HDR infoframe and send to panel
>
>On Thu, May 09, 2019 at 12:08:46AM +0530, Uma Shankar wrote:
>> Enable writing of HDR metadata infoframe to panel.
>> The data will be provid by usersapace compositors, based on blending
>> policies and passsed to driver through a blob property.
>>
>> v2: Rebase
>>
>> v3: Fixed a warning message
>>
>> v4: Addressed Shashank's review comments
>>
>> v5: Rebase. Added infoframe calculation in compute config.
>>
>> v6: Addressed Shashank's review comment. Added HDR metadata support
>> from GEN10 onwards as per Shashank's recommendation.
>>
>> v7: Addressed Shashank's review comments
>>
>> v8: Added Shashank's RB.
>>
>> Signed-off-by: Uma Shankar <uma.shankar@intel.com>
>> Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
>> ---
>>  drivers/gpu/drm/i915/intel_drv.h  |  1 +
>> drivers/gpu/drm/i915/intel_hdmi.c | 48
>> +++++++++++++++++++++++++++++++++++++++
>>  2 files changed, 49 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_drv.h
>> b/drivers/gpu/drm/i915/intel_drv.h
>> index 247893e..bc32b2c 100644
>> --- a/drivers/gpu/drm/i915/intel_drv.h
>> +++ b/drivers/gpu/drm/i915/intel_drv.h
>> @@ -910,6 +910,7 @@ struct intel_crtc_state {
>>  		union hdmi_infoframe avi;
>>  		union hdmi_infoframe spd;
>>  		union hdmi_infoframe hdmi;
>> +		union hdmi_infoframe drm;
>>  	} infoframes;
>>
>>  	/* HDMI scrambling status */
>> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c
>> b/drivers/gpu/drm/i915/intel_hdmi.c
>> index 92597d8..980900b 100644
>> --- a/drivers/gpu/drm/i915/intel_hdmi.c
>> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
>> @@ -573,6 +573,7 @@ static u32 hsw_infoframes_enabled(struct intel_encoder
>*encoder,
>>  	HDMI_INFOFRAME_TYPE_AVI,
>>  	HDMI_INFOFRAME_TYPE_SPD,
>>  	HDMI_INFOFRAME_TYPE_VENDOR,
>> +	HDMI_INFOFRAME_TYPE_DRM,
>>  };
>>
>>  u32 intel_hdmi_infoframe_enable(unsigned int type) @@ -795,6 +796,30
>> @@ void intel_read_infoframe(struct intel_encoder *encoder,
>>  	return true;
>>  }
>>
>> +static bool
>> +intel_hdmi_compute_drm_infoframe(struct intel_encoder *encoder,
>> +				 struct intel_crtc_state *crtc_state,
>> +				 struct drm_connector_state *conn_state) {
>> +	struct hdmi_drm_infoframe *frame = &crtc_state->infoframes.drm.drm;
>> +	struct hdr_output_metadata *hdr_metadata;
>> +	int ret;
>
>Missing has_infoframes check.

Ok, will add this.

>> +
>> +	hdr_metadata = (struct hdr_output_metadata *)
>
>Pointless cast?

Yeah, will remove this.

>
>> +			conn_state->hdr_output_metadata->data;
>
>NULL pointer deref? Hmm, how does this pass CI?

Actually this check is added in a later patch in series (patch 9), will move the check
here to avoid any bisect issues.

>
>> +
>> +	ret = drm_hdmi_infoframe_set_hdr_metadata(frame, hdr_metadata);
>> +	if (ret < 0) {
>> +		DRM_ERROR("couldn't set HDR metadata in infoframe\n");
>> +		return false;
>> +	}
>> +
>> +	crtc_state->infoframes.enable |=
>> +		intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_DRM);
>
>Everyone else sets this before populating the infoframe.

Will move this up.

>Missing the whatever_infoframe_check() call here.

Sure, will add the check.

>> +
>> +	return true;
>> +}
>> +
>>  static void g4x_set_infoframes(struct intel_encoder *encoder,
>>  			       bool enable,
>>  			       const struct intel_crtc_state *crtc_state, @@ -1180,6
>> +1205,16 @@ static void hsw_set_infoframes(struct intel_encoder *encoder,
>>  	intel_write_infoframe(encoder, crtc_state,
>>  			      HDMI_INFOFRAME_TYPE_VENDOR,
>>  			      &crtc_state->infoframes.hdmi);
>> +
>> +	/*
>> +	 * Support HDR Metadata from Gen10 onwards
>> +	 * ToDo: Gen9 also can support HDR with LSPCON.
>> +	 * Support for the same to be enabled later.
>> +	 */
>> +	if (INTEL_GEN(dev_priv) >= 10)
>
>Missing glk. Actually this check can be removed entirely since
>intel_write_infoframe() already checks infoframes.enable.

Yeah right, will drop this check altogether.

>> +		intel_write_infoframe(encoder, crtc_state,
>> +				      HDMI_INFOFRAME_TYPE_DRM,
>> +				      &crtc_state->infoframes.drm);
>>  }
>>
>>  void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool
>> enable) @@ -2386,6 +2421,19 @@ int intel_hdmi_compute_config(struct
>intel_encoder *encoder,
>>  		return -EINVAL;
>>  	}
>>
>> +	/*
>> +	 * Support HDR Metadata from Gen10 onwards
>
>This is not providing extra information beyond what the code is saying.

>> +	 * ToDo: Gen9 also can support HDR with LSPCON.
>> +	 * Support for the same to be enabled later.
>
>This is native HDMI code. LSPCON fixme doesn't make sense here.

Ok, will drop the comments here.

>> +	 */
>> +	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
>
>For GCP the platform check is in the function itself. Could do the same here for
>consistency.

Sure, will do the same.

Regards,
Uma Shankar

>> +		if (!intel_hdmi_compute_drm_infoframe(encoder, pipe_config,
>> +						      conn_state)) {
>> +			DRM_DEBUG_KMS("bad DRM infoframe\n");
>> +			return -EINVAL;
>> +		}
>> +	}
>> +
>>  	return 0;
>>  }
>>
>> --
>> 1.9.1
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
>--
>Ville Syrjälä
>Intel

Patch
diff mbox series

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 247893e..bc32b2c 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -910,6 +910,7 @@  struct intel_crtc_state {
 		union hdmi_infoframe avi;
 		union hdmi_infoframe spd;
 		union hdmi_infoframe hdmi;
+		union hdmi_infoframe drm;
 	} infoframes;
 
 	/* HDMI scrambling status */
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 92597d8..980900b 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -573,6 +573,7 @@  static u32 hsw_infoframes_enabled(struct intel_encoder *encoder,
 	HDMI_INFOFRAME_TYPE_AVI,
 	HDMI_INFOFRAME_TYPE_SPD,
 	HDMI_INFOFRAME_TYPE_VENDOR,
+	HDMI_INFOFRAME_TYPE_DRM,
 };
 
 u32 intel_hdmi_infoframe_enable(unsigned int type)
@@ -795,6 +796,30 @@  void intel_read_infoframe(struct intel_encoder *encoder,
 	return true;
 }
 
+static bool
+intel_hdmi_compute_drm_infoframe(struct intel_encoder *encoder,
+				 struct intel_crtc_state *crtc_state,
+				 struct drm_connector_state *conn_state)
+{
+	struct hdmi_drm_infoframe *frame = &crtc_state->infoframes.drm.drm;
+	struct hdr_output_metadata *hdr_metadata;
+	int ret;
+
+	hdr_metadata = (struct hdr_output_metadata *)
+			conn_state->hdr_output_metadata->data;
+
+	ret = drm_hdmi_infoframe_set_hdr_metadata(frame, hdr_metadata);
+	if (ret < 0) {
+		DRM_ERROR("couldn't set HDR metadata in infoframe\n");
+		return false;
+	}
+
+	crtc_state->infoframes.enable |=
+		intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_DRM);
+
+	return true;
+}
+
 static void g4x_set_infoframes(struct intel_encoder *encoder,
 			       bool enable,
 			       const struct intel_crtc_state *crtc_state,
@@ -1180,6 +1205,16 @@  static void hsw_set_infoframes(struct intel_encoder *encoder,
 	intel_write_infoframe(encoder, crtc_state,
 			      HDMI_INFOFRAME_TYPE_VENDOR,
 			      &crtc_state->infoframes.hdmi);
+
+	/*
+	 * Support HDR Metadata from Gen10 onwards
+	 * ToDo: Gen9 also can support HDR with LSPCON.
+	 * Support for the same to be enabled later.
+	 */
+	if (INTEL_GEN(dev_priv) >= 10)
+		intel_write_infoframe(encoder, crtc_state,
+				      HDMI_INFOFRAME_TYPE_DRM,
+				      &crtc_state->infoframes.drm);
 }
 
 void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable)
@@ -2386,6 +2421,19 @@  int intel_hdmi_compute_config(struct intel_encoder *encoder,
 		return -EINVAL;
 	}
 
+	/*
+	 * Support HDR Metadata from Gen10 onwards
+	 * ToDo: Gen9 also can support HDR with LSPCON.
+	 * Support for the same to be enabled later.
+	 */
+	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
+		if (!intel_hdmi_compute_drm_infoframe(encoder, pipe_config,
+						      conn_state)) {
+			DRM_DEBUG_KMS("bad DRM infoframe\n");
+			return -EINVAL;
+		}
+	}
+
 	return 0;
 }