[PATCH 1/3] drm/connector: Create a helper to attach the hdr_output_metadata property

[PATCH 1/3] drm/connector: Create a helper to attach the hdr_output_metadata property

[Maxime Ripard]

All the drivers that implement HDR output call pretty much the same
function to initialise the hdr_output_metadata property, and while the
creation of that property is in a helper, every driver uses the same
code to attach it.

Provide a helper for it as well

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  4 +---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     |  3 +--
 drivers/gpu/drm/drm_connector.c               | 21 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_hdmi.c     |  3 +--
 include/drm/drm_connector.h                   |  1 +
 5 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 22124f76d0b5..06908a3cee0f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7017,9 +7017,7 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
 	    connector_type == DRM_MODE_CONNECTOR_eDP) {
-		drm_object_attach_property(
-			&aconnector->base.base,
-			dm->ddev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
 
 		if (!aconnector->mst_port)
 			drm_connector_attach_vrr_capable_property(&aconnector->base);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index dda4fa9a1a08..f24bbb840dbf 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2492,8 +2492,7 @@ static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
 	drm_connector_attach_max_bpc_property(connector, 8, 16);
 
 	if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
-		drm_object_attach_property(&connector->base,
-			connector->dev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(connector);
 
 	drm_connector_attach_encoder(connector, hdmi->bridge.encoder);
 
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 98b6ec45ef96..e25248e23e18 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2149,6 +2149,27 @@ int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
 }
 EXPORT_SYMBOL(drm_connector_attach_max_bpc_property);
 
+/**
+ * drm_connector_attach_hdr_output_metadata_property - attach "HDR_OUTPUT_METADA" property
+ * @connector: connector to attach the property on.
+ *
+ * This is used to allow the userspace to send HDR Metadata to the
+ * driver.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_property *prop = dev->mode_config.hdr_output_metadata_property;
+
+	drm_object_attach_property(&connector->base, prop, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
+
 /**
  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
  * capable property for a connector
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index c5959590562b..52c051efb7b7 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2958,8 +2958,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c
 	drm_connector_attach_content_type_property(connector);
 
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
-		drm_object_attach_property(&connector->base,
-			connector->dev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(connector);
 
 	if (!HAS_GMCH(dev_priv))
 		drm_connector_attach_max_bpc_property(connector, 8, 12);
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 1922b278ffad..32172dab8427 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1671,6 +1671,7 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 					       u32 scaling_mode_mask);
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
+int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
 int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
-- 
2.30.2

[PATCH 1/3] drm/connector: Create a helper to attach the hdr_output_metadata property

[Maxime Ripard]

All the drivers that implement HDR output call pretty much the same
function to initialise the hdr_output_metadata property, and while the
creation of that property is in a helper, every driver uses the same
code to attach it.

Provide a helper for it as well

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  4 +---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     |  3 +--
 drivers/gpu/drm/drm_connector.c               | 21 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_hdmi.c     |  3 +--
 include/drm/drm_connector.h                   |  1 +
 5 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 22124f76d0b5..06908a3cee0f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7017,9 +7017,7 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
 	    connector_type == DRM_MODE_CONNECTOR_eDP) {
-		drm_object_attach_property(
-			&aconnector->base.base,
-			dm->ddev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
 
 		if (!aconnector->mst_port)
 			drm_connector_attach_vrr_capable_property(&aconnector->base);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index dda4fa9a1a08..f24bbb840dbf 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2492,8 +2492,7 @@ static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
 	drm_connector_attach_max_bpc_property(connector, 8, 16);
 
 	if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
-		drm_object_attach_property(&connector->base,
-			connector->dev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(connector);
 
 	drm_connector_attach_encoder(connector, hdmi->bridge.encoder);
 
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 98b6ec45ef96..e25248e23e18 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2149,6 +2149,27 @@ int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
 }
 EXPORT_SYMBOL(drm_connector_attach_max_bpc_property);
 
+/**
+ * drm_connector_attach_hdr_output_metadata_property - attach "HDR_OUTPUT_METADA" property
+ * @connector: connector to attach the property on.
+ *
+ * This is used to allow the userspace to send HDR Metadata to the
+ * driver.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_property *prop = dev->mode_config.hdr_output_metadata_property;
+
+	drm_object_attach_property(&connector->base, prop, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
+
 /**
  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
  * capable property for a connector
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index c5959590562b..52c051efb7b7 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2958,8 +2958,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c
 	drm_connector_attach_content_type_property(connector);
 
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
-		drm_object_attach_property(&connector->base,
-			connector->dev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(connector);
 
 	if (!HAS_GMCH(dev_priv))
 		drm_connector_attach_max_bpc_property(connector, 8, 12);
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 1922b278ffad..32172dab8427 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1671,6 +1671,7 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 					       u32 scaling_mode_mask);
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
+int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
 int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
-- 
2.30.2

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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Intel-gfx] [PATCH 1/3] drm/connector: Create a helper to attach the hdr_output_metadata property

[Maxime Ripard]

All the drivers that implement HDR output call pretty much the same
function to initialise the hdr_output_metadata property, and while the
creation of that property is in a helper, every driver uses the same
code to attach it.

Provide a helper for it as well

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  4 +---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     |  3 +--
 drivers/gpu/drm/drm_connector.c               | 21 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_hdmi.c     |  3 +--
 include/drm/drm_connector.h                   |  1 +
 5 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 22124f76d0b5..06908a3cee0f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7017,9 +7017,7 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
 	    connector_type == DRM_MODE_CONNECTOR_eDP) {
-		drm_object_attach_property(
-			&aconnector->base.base,
-			dm->ddev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
 
 		if (!aconnector->mst_port)
 			drm_connector_attach_vrr_capable_property(&aconnector->base);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index dda4fa9a1a08..f24bbb840dbf 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2492,8 +2492,7 @@ static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
 	drm_connector_attach_max_bpc_property(connector, 8, 16);
 
 	if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
-		drm_object_attach_property(&connector->base,
-			connector->dev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(connector);
 
 	drm_connector_attach_encoder(connector, hdmi->bridge.encoder);
 
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 98b6ec45ef96..e25248e23e18 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2149,6 +2149,27 @@ int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
 }
 EXPORT_SYMBOL(drm_connector_attach_max_bpc_property);
 
+/**
+ * drm_connector_attach_hdr_output_metadata_property - attach "HDR_OUTPUT_METADA" property
+ * @connector: connector to attach the property on.
+ *
+ * This is used to allow the userspace to send HDR Metadata to the
+ * driver.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_property *prop = dev->mode_config.hdr_output_metadata_property;
+
+	drm_object_attach_property(&connector->base, prop, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
+
 /**
  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
  * capable property for a connector
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index c5959590562b..52c051efb7b7 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2958,8 +2958,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c
 	drm_connector_attach_content_type_property(connector);
 
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
-		drm_object_attach_property(&connector->base,
-			connector->dev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(connector);
 
 	if (!HAS_GMCH(dev_priv))
 		drm_connector_attach_max_bpc_property(connector, 8, 12);
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 1922b278ffad..32172dab8427 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1671,6 +1671,7 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 					       u32 scaling_mode_mask);
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
+int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
 int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
-- 
2.30.2

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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[PATCH 1/3] drm/connector: Create a helper to attach the hdr_output_metadata property

[Maxime Ripard]

All the drivers that implement HDR output call pretty much the same
function to initialise the hdr_output_metadata property, and while the
creation of that property is in a helper, every driver uses the same
code to attach it.

Provide a helper for it as well

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  4 +---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     |  3 +--
 drivers/gpu/drm/drm_connector.c               | 21 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_hdmi.c     |  3 +--
 include/drm/drm_connector.h                   |  1 +
 5 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 22124f76d0b5..06908a3cee0f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7017,9 +7017,7 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
 	    connector_type == DRM_MODE_CONNECTOR_eDP) {
-		drm_object_attach_property(
-			&aconnector->base.base,
-			dm->ddev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
 
 		if (!aconnector->mst_port)
 			drm_connector_attach_vrr_capable_property(&aconnector->base);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index dda4fa9a1a08..f24bbb840dbf 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2492,8 +2492,7 @@ static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
 	drm_connector_attach_max_bpc_property(connector, 8, 16);
 
 	if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
-		drm_object_attach_property(&connector->base,
-			connector->dev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(connector);
 
 	drm_connector_attach_encoder(connector, hdmi->bridge.encoder);
 
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 98b6ec45ef96..e25248e23e18 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2149,6 +2149,27 @@ int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
 }
 EXPORT_SYMBOL(drm_connector_attach_max_bpc_property);
 
+/**
+ * drm_connector_attach_hdr_output_metadata_property - attach "HDR_OUTPUT_METADA" property
+ * @connector: connector to attach the property on.
+ *
+ * This is used to allow the userspace to send HDR Metadata to the
+ * driver.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_property *prop = dev->mode_config.hdr_output_metadata_property;
+
+	drm_object_attach_property(&connector->base, prop, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
+
 /**
  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
  * capable property for a connector
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index c5959590562b..52c051efb7b7 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2958,8 +2958,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c
 	drm_connector_attach_content_type_property(connector);
 
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
-		drm_object_attach_property(&connector->base,
-			connector->dev->mode_config.hdr_output_metadata_property, 0);
+		drm_connector_attach_hdr_output_metadata_property(connector);
 
 	if (!HAS_GMCH(dev_priv))
 		drm_connector_attach_max_bpc_property(connector, 8, 12);
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 1922b278ffad..32172dab8427 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1671,6 +1671,7 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 					       u32 scaling_mode_mask);
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
+int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
 int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
-- 
2.30.2

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https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Maxime Ripard]

All the drivers that support the HDR metadata property have a similar
function to compare the metadata from one connector state to the next,
and force a mode change if they differ.

All these functions run pretty much the same code, so let's turn it into
an helper that can be shared across those drivers.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
 drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
 include/drm/drm_connector.h                   |  2 ++
 5 files changed, 33 insertions(+), 48 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 06908a3cee0f..4eb5201e566a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5924,25 +5924,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state,
 	return 0;
 }
 
-static bool
-is_hdr_metadata_different(const struct drm_connector_state *old_state,
-			  const struct drm_connector_state *new_state)
-{
-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
-
-	if (old_blob != new_blob) {
-		if (old_blob && new_blob &&
-		    old_blob->length == new_blob->length)
-			return memcmp(old_blob->data, new_blob->data,
-				      old_blob->length);
-
-		return true;
-	}
-
-	return false;
-}
-
 static int
 amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 				 struct drm_atomic_state *state)
@@ -5960,7 +5941,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	if (!crtc)
 		return 0;
 
-	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
+	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
 		struct dc_info_packet hdr_infopacket;
 
 		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index f24bbb840dbf..f871e33c2fc9 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
-			       const struct drm_connector_state *new_state)
-{
-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
-
-	if (!old_blob || !new_blob)
-		return old_blob == new_blob;
-
-	if (old_blob->length != new_blob->length)
-		return false;
-
-	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
-}
-
 static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 					  struct drm_atomic_state *state)
 {
@@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 	if (!crtc)
 		return 0;
 
-	if (!hdr_metadata_equal(old_state, new_state)) {
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
 		if (IS_ERR(crtc_state))
 			return PTR_ERR(crtc_state);
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index e25248e23e18..d781a3a1e9bf 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2170,6 +2170,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn
 }
 EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
 
+/**
+ * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
+ * @old_state: old connector state to compare
+ * @new_state: new connector state to compare
+ *
+ * This is used by HDR-enabled drivers to test whether the HDR metadata
+ * have changed between two different connector state (and thus probably
+ * requires a full blown mode change).
+ *
+ * Returns:
+ * True if the metadata are equal, False otherwise
+ */
+bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+					     struct drm_connector_state *new_state)
+{
+	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
+	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
+
+	if (!old_blob || !new_blob)
+		return old_blob == new_blob;
+
+	if (old_blob->length != new_blob->length)
+		return false;
+
+	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
+}
+EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
+
 /**
  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
  * capable property for a connector
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
index e00fdc47c0eb..efec9454af5a 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
 	return -EINVAL;
 }
 
-static bool blob_equal(const struct drm_property_blob *a,
-		       const struct drm_property_blob *b)
-{
-	if (a && b)
-		return a->length == b->length &&
-			!memcmp(a->data, b->data, a->length);
-
-	return !a == !b;
-}
-
 int intel_digital_connector_atomic_check(struct drm_connector *conn,
 					 struct drm_atomic_state *state)
 {
@@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
 	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
 	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
 	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
-	    !blob_equal(new_conn_state->base.hdr_output_metadata,
-			old_conn_state->base.hdr_output_metadata))
+	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
 		crtc_state->mode_changed = true;
 
 	return 0;
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 32172dab8427..1f51d73ca715 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
 int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
+bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+					     struct drm_connector_state *new_state);
 int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
-- 
2.30.2

[PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Maxime Ripard]

All the drivers that support the HDR metadata property have a similar
function to compare the metadata from one connector state to the next,
and force a mode change if they differ.

All these functions run pretty much the same code, so let's turn it into
an helper that can be shared across those drivers.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
 drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
 include/drm/drm_connector.h                   |  2 ++
 5 files changed, 33 insertions(+), 48 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 06908a3cee0f..4eb5201e566a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5924,25 +5924,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state,
 	return 0;
 }
 
-static bool
-is_hdr_metadata_different(const struct drm_connector_state *old_state,
-			  const struct drm_connector_state *new_state)
-{
-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
-
-	if (old_blob != new_blob) {
-		if (old_blob && new_blob &&
-		    old_blob->length == new_blob->length)
-			return memcmp(old_blob->data, new_blob->data,
-				      old_blob->length);
-
-		return true;
-	}
-
-	return false;
-}
-
 static int
 amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 				 struct drm_atomic_state *state)
@@ -5960,7 +5941,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	if (!crtc)
 		return 0;
 
-	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
+	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
 		struct dc_info_packet hdr_infopacket;
 
 		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index f24bbb840dbf..f871e33c2fc9 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
-			       const struct drm_connector_state *new_state)
-{
-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
-
-	if (!old_blob || !new_blob)
-		return old_blob == new_blob;
-
-	if (old_blob->length != new_blob->length)
-		return false;
-
-	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
-}
-
 static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 					  struct drm_atomic_state *state)
 {
@@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 	if (!crtc)
 		return 0;
 
-	if (!hdr_metadata_equal(old_state, new_state)) {
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
 		if (IS_ERR(crtc_state))
 			return PTR_ERR(crtc_state);
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index e25248e23e18..d781a3a1e9bf 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2170,6 +2170,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn
 }
 EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
 
+/**
+ * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
+ * @old_state: old connector state to compare
+ * @new_state: new connector state to compare
+ *
+ * This is used by HDR-enabled drivers to test whether the HDR metadata
+ * have changed between two different connector state (and thus probably
+ * requires a full blown mode change).
+ *
+ * Returns:
+ * True if the metadata are equal, False otherwise
+ */
+bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+					     struct drm_connector_state *new_state)
+{
+	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
+	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
+
+	if (!old_blob || !new_blob)
+		return old_blob == new_blob;
+
+	if (old_blob->length != new_blob->length)
+		return false;
+
+	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
+}
+EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
+
 /**
  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
  * capable property for a connector
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
index e00fdc47c0eb..efec9454af5a 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
 	return -EINVAL;
 }
 
-static bool blob_equal(const struct drm_property_blob *a,
-		       const struct drm_property_blob *b)
-{
-	if (a && b)
-		return a->length == b->length &&
-			!memcmp(a->data, b->data, a->length);
-
-	return !a == !b;
-}
-
 int intel_digital_connector_atomic_check(struct drm_connector *conn,
 					 struct drm_atomic_state *state)
 {
@@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
 	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
 	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
 	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
-	    !blob_equal(new_conn_state->base.hdr_output_metadata,
-			old_conn_state->base.hdr_output_metadata))
+	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
 		crtc_state->mode_changed = true;
 
 	return 0;
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 32172dab8427..1f51d73ca715 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
 int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
+bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+					     struct drm_connector_state *new_state);
 int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
-- 
2.30.2

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Intel-gfx] [PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Maxime Ripard]

All the drivers that support the HDR metadata property have a similar
function to compare the metadata from one connector state to the next,
and force a mode change if they differ.

All these functions run pretty much the same code, so let's turn it into
an helper that can be shared across those drivers.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
 drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
 include/drm/drm_connector.h                   |  2 ++
 5 files changed, 33 insertions(+), 48 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 06908a3cee0f..4eb5201e566a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5924,25 +5924,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state,
 	return 0;
 }
 
-static bool
-is_hdr_metadata_different(const struct drm_connector_state *old_state,
-			  const struct drm_connector_state *new_state)
-{
-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
-
-	if (old_blob != new_blob) {
-		if (old_blob && new_blob &&
-		    old_blob->length == new_blob->length)
-			return memcmp(old_blob->data, new_blob->data,
-				      old_blob->length);
-
-		return true;
-	}
-
-	return false;
-}
-
 static int
 amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 				 struct drm_atomic_state *state)
@@ -5960,7 +5941,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	if (!crtc)
 		return 0;
 
-	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
+	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
 		struct dc_info_packet hdr_infopacket;
 
 		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index f24bbb840dbf..f871e33c2fc9 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
-			       const struct drm_connector_state *new_state)
-{
-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
-
-	if (!old_blob || !new_blob)
-		return old_blob == new_blob;
-
-	if (old_blob->length != new_blob->length)
-		return false;
-
-	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
-}
-
 static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 					  struct drm_atomic_state *state)
 {
@@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 	if (!crtc)
 		return 0;
 
-	if (!hdr_metadata_equal(old_state, new_state)) {
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
 		if (IS_ERR(crtc_state))
 			return PTR_ERR(crtc_state);
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index e25248e23e18..d781a3a1e9bf 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2170,6 +2170,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn
 }
 EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
 
+/**
+ * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
+ * @old_state: old connector state to compare
+ * @new_state: new connector state to compare
+ *
+ * This is used by HDR-enabled drivers to test whether the HDR metadata
+ * have changed between two different connector state (and thus probably
+ * requires a full blown mode change).
+ *
+ * Returns:
+ * True if the metadata are equal, False otherwise
+ */
+bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+					     struct drm_connector_state *new_state)
+{
+	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
+	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
+
+	if (!old_blob || !new_blob)
+		return old_blob == new_blob;
+
+	if (old_blob->length != new_blob->length)
+		return false;
+
+	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
+}
+EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
+
 /**
  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
  * capable property for a connector
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
index e00fdc47c0eb..efec9454af5a 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
 	return -EINVAL;
 }
 
-static bool blob_equal(const struct drm_property_blob *a,
-		       const struct drm_property_blob *b)
-{
-	if (a && b)
-		return a->length == b->length &&
-			!memcmp(a->data, b->data, a->length);
-
-	return !a == !b;
-}
-
 int intel_digital_connector_atomic_check(struct drm_connector *conn,
 					 struct drm_atomic_state *state)
 {
@@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
 	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
 	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
 	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
-	    !blob_equal(new_conn_state->base.hdr_output_metadata,
-			old_conn_state->base.hdr_output_metadata))
+	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
 		crtc_state->mode_changed = true;
 
 	return 0;
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 32172dab8427..1f51d73ca715 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
 int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
+bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+					     struct drm_connector_state *new_state);
 int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
-- 
2.30.2

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Maxime Ripard]

All the drivers that support the HDR metadata property have a similar
function to compare the metadata from one connector state to the next,
and force a mode change if they differ.

All these functions run pretty much the same code, so let's turn it into
an helper that can be shared across those drivers.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
 drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
 include/drm/drm_connector.h                   |  2 ++
 5 files changed, 33 insertions(+), 48 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 06908a3cee0f..4eb5201e566a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5924,25 +5924,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state,
 	return 0;
 }
 
-static bool
-is_hdr_metadata_different(const struct drm_connector_state *old_state,
-			  const struct drm_connector_state *new_state)
-{
-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
-
-	if (old_blob != new_blob) {
-		if (old_blob && new_blob &&
-		    old_blob->length == new_blob->length)
-			return memcmp(old_blob->data, new_blob->data,
-				      old_blob->length);
-
-		return true;
-	}
-
-	return false;
-}
-
 static int
 amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 				 struct drm_atomic_state *state)
@@ -5960,7 +5941,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	if (!crtc)
 		return 0;
 
-	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
+	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
 		struct dc_info_packet hdr_infopacket;
 
 		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index f24bbb840dbf..f871e33c2fc9 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
-static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
-			       const struct drm_connector_state *new_state)
-{
-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
-
-	if (!old_blob || !new_blob)
-		return old_blob == new_blob;
-
-	if (old_blob->length != new_blob->length)
-		return false;
-
-	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
-}
-
 static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 					  struct drm_atomic_state *state)
 {
@@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 	if (!crtc)
 		return 0;
 
-	if (!hdr_metadata_equal(old_state, new_state)) {
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
 		if (IS_ERR(crtc_state))
 			return PTR_ERR(crtc_state);
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index e25248e23e18..d781a3a1e9bf 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2170,6 +2170,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn
 }
 EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
 
+/**
+ * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
+ * @old_state: old connector state to compare
+ * @new_state: new connector state to compare
+ *
+ * This is used by HDR-enabled drivers to test whether the HDR metadata
+ * have changed between two different connector state (and thus probably
+ * requires a full blown mode change).
+ *
+ * Returns:
+ * True if the metadata are equal, False otherwise
+ */
+bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+					     struct drm_connector_state *new_state)
+{
+	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
+	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
+
+	if (!old_blob || !new_blob)
+		return old_blob == new_blob;
+
+	if (old_blob->length != new_blob->length)
+		return false;
+
+	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
+}
+EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
+
 /**
  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
  * capable property for a connector
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
index e00fdc47c0eb..efec9454af5a 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
 	return -EINVAL;
 }
 
-static bool blob_equal(const struct drm_property_blob *a,
-		       const struct drm_property_blob *b)
-{
-	if (a && b)
-		return a->length == b->length &&
-			!memcmp(a->data, b->data, a->length);
-
-	return !a == !b;
-}
-
 int intel_digital_connector_atomic_check(struct drm_connector *conn,
 					 struct drm_atomic_state *state)
 {
@@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
 	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
 	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
 	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
-	    !blob_equal(new_conn_state->base.hdr_output_metadata,
-			old_conn_state->base.hdr_output_metadata))
+	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
 		crtc_state->mode_changed = true;
 
 	return 0;
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 32172dab8427..1f51d73ca715 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
 int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
+bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+					     struct drm_connector_state *new_state);
 int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
-- 
2.30.2

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

[PATCH 3/3] drm/vc4: Add HDR metadata property to the VC5 HDMI connectors

[Maxime Ripard]

From: Dave Stevenson <dave.stevenson@raspberrypi.com>

Now that we can export deeper colour depths, add in the signalling
for HDR metadata.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 53 ++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/vc4/vc4_hdmi.h |  3 ++
 2 files changed, 56 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index eee9751009c2..c8846cf9dd24 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -214,6 +214,31 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
+static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector,
+					  struct drm_atomic_state *state)
+{
+	struct drm_connector_state *old_state =
+		drm_atomic_get_old_connector_state(state, connector);
+	struct drm_connector_state *new_state =
+		drm_atomic_get_new_connector_state(state, connector);
+	struct drm_crtc *crtc = new_state->crtc;
+
+	if (!crtc)
+		return 0;
+
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
+		struct drm_crtc_state *crtc_state;
+
+		crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(crtc_state))
+			return PTR_ERR(crtc_state);
+
+		crtc_state->mode_changed = true;
+	}
+
+	return 0;
+}
+
 static void vc4_hdmi_connector_reset(struct drm_connector *connector)
 {
 	struct vc4_hdmi_connector_state *old_state =
@@ -263,6 +288,7 @@ static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
 
 static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = {
 	.get_modes = vc4_hdmi_connector_get_modes,
+	.atomic_check = vc4_hdmi_connector_atomic_check,
 };
 
 static int vc4_hdmi_connector_init(struct drm_device *dev,
@@ -299,6 +325,9 @@ static int vc4_hdmi_connector_init(struct drm_device *dev,
 	connector->interlace_allowed = 1;
 	connector->doublescan_allowed = 0;
 
+	if (vc4_hdmi->variant->supports_hdr)
+		drm_connector_attach_hdr_output_metadata_property(connector);
+
 	drm_connector_attach_encoder(connector, encoder);
 
 	return 0;
@@ -432,6 +461,25 @@ static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder)
 	vc4_hdmi_write_infoframe(encoder, &frame);
 }
 
+static void vc4_hdmi_set_hdr_infoframe(struct drm_encoder *encoder)
+{
+	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+	struct drm_connector *connector = &vc4_hdmi->connector;
+	struct drm_connector_state *conn_state = connector->state;
+	union hdmi_infoframe frame;
+
+	if (!vc4_hdmi->variant->supports_hdr)
+		return;
+
+	if (!conn_state->hdr_output_metadata)
+		return;
+
+	if (drm_hdmi_infoframe_set_hdr_metadata(&frame.drm, conn_state))
+		return;
+
+	vc4_hdmi_write_infoframe(encoder, &frame);
+}
+
 static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 {
 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
@@ -444,6 +492,8 @@ static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 	 */
 	if (vc4_hdmi->audio.streaming)
 		vc4_hdmi_set_audio_infoframe(encoder);
+
+	vc4_hdmi_set_hdr_infoframe(encoder);
 }
 
 static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
@@ -2101,6 +2151,7 @@ static const struct vc4_hdmi_variant bcm2835_variant = {
 	.phy_rng_enable		= vc4_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc4_hdmi_phy_rng_disable,
 	.channel_map		= vc4_hdmi_channel_map,
+	.supports_hdr		= false,
 };
 
 static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
@@ -2128,6 +2179,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
 	.channel_map		= vc5_hdmi_channel_map,
+	.supports_hdr		= true,
 };
 
 static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
@@ -2155,6 +2207,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
 	.channel_map		= vc5_hdmi_channel_map,
+	.supports_hdr		= true,
 };
 
 static const struct of_device_id vc4_hdmi_dt_match[] = {
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 3cebd1fd00fc..060bcaefbeb5 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -99,6 +99,9 @@ struct vc4_hdmi_variant {
 
 	/* Callback to get channel map */
 	u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
+
+	/* Enables HDR metadata */
+	bool supports_hdr;
 };
 
 /* HDMI audio information */
-- 
2.30.2

[PATCH 3/3] drm/vc4: Add HDR metadata property to the VC5 HDMI connectors

[Maxime Ripard]

From: Dave Stevenson <dave.stevenson@raspberrypi.com>

Now that we can export deeper colour depths, add in the signalling
for HDR metadata.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 53 ++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/vc4/vc4_hdmi.h |  3 ++
 2 files changed, 56 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index eee9751009c2..c8846cf9dd24 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -214,6 +214,31 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
+static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector,
+					  struct drm_atomic_state *state)
+{
+	struct drm_connector_state *old_state =
+		drm_atomic_get_old_connector_state(state, connector);
+	struct drm_connector_state *new_state =
+		drm_atomic_get_new_connector_state(state, connector);
+	struct drm_crtc *crtc = new_state->crtc;
+
+	if (!crtc)
+		return 0;
+
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
+		struct drm_crtc_state *crtc_state;
+
+		crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(crtc_state))
+			return PTR_ERR(crtc_state);
+
+		crtc_state->mode_changed = true;
+	}
+
+	return 0;
+}
+
 static void vc4_hdmi_connector_reset(struct drm_connector *connector)
 {
 	struct vc4_hdmi_connector_state *old_state =
@@ -263,6 +288,7 @@ static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
 
 static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = {
 	.get_modes = vc4_hdmi_connector_get_modes,
+	.atomic_check = vc4_hdmi_connector_atomic_check,
 };
 
 static int vc4_hdmi_connector_init(struct drm_device *dev,
@@ -299,6 +325,9 @@ static int vc4_hdmi_connector_init(struct drm_device *dev,
 	connector->interlace_allowed = 1;
 	connector->doublescan_allowed = 0;
 
+	if (vc4_hdmi->variant->supports_hdr)
+		drm_connector_attach_hdr_output_metadata_property(connector);
+
 	drm_connector_attach_encoder(connector, encoder);
 
 	return 0;
@@ -432,6 +461,25 @@ static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder)
 	vc4_hdmi_write_infoframe(encoder, &frame);
 }
 
+static void vc4_hdmi_set_hdr_infoframe(struct drm_encoder *encoder)
+{
+	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+	struct drm_connector *connector = &vc4_hdmi->connector;
+	struct drm_connector_state *conn_state = connector->state;
+	union hdmi_infoframe frame;
+
+	if (!vc4_hdmi->variant->supports_hdr)
+		return;
+
+	if (!conn_state->hdr_output_metadata)
+		return;
+
+	if (drm_hdmi_infoframe_set_hdr_metadata(&frame.drm, conn_state))
+		return;
+
+	vc4_hdmi_write_infoframe(encoder, &frame);
+}
+
 static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 {
 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
@@ -444,6 +492,8 @@ static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 	 */
 	if (vc4_hdmi->audio.streaming)
 		vc4_hdmi_set_audio_infoframe(encoder);
+
+	vc4_hdmi_set_hdr_infoframe(encoder);
 }
 
 static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
@@ -2101,6 +2151,7 @@ static const struct vc4_hdmi_variant bcm2835_variant = {
 	.phy_rng_enable		= vc4_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc4_hdmi_phy_rng_disable,
 	.channel_map		= vc4_hdmi_channel_map,
+	.supports_hdr		= false,
 };
 
 static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
@@ -2128,6 +2179,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
 	.channel_map		= vc5_hdmi_channel_map,
+	.supports_hdr		= true,
 };
 
 static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
@@ -2155,6 +2207,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
 	.channel_map		= vc5_hdmi_channel_map,
+	.supports_hdr		= true,
 };
 
 static const struct of_device_id vc4_hdmi_dt_match[] = {
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 3cebd1fd00fc..060bcaefbeb5 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -99,6 +99,9 @@ struct vc4_hdmi_variant {
 
 	/* Callback to get channel map */
 	u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
+
+	/* Enables HDR metadata */
+	bool supports_hdr;
 };
 
 /* HDMI audio information */
-- 
2.30.2

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Intel-gfx] [PATCH 3/3] drm/vc4: Add HDR metadata property to the VC5 HDMI connectors

[Maxime Ripard]

From: Dave Stevenson <dave.stevenson@raspberrypi.com>

Now that we can export deeper colour depths, add in the signalling
for HDR metadata.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 53 ++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/vc4/vc4_hdmi.h |  3 ++
 2 files changed, 56 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index eee9751009c2..c8846cf9dd24 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -214,6 +214,31 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
+static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector,
+					  struct drm_atomic_state *state)
+{
+	struct drm_connector_state *old_state =
+		drm_atomic_get_old_connector_state(state, connector);
+	struct drm_connector_state *new_state =
+		drm_atomic_get_new_connector_state(state, connector);
+	struct drm_crtc *crtc = new_state->crtc;
+
+	if (!crtc)
+		return 0;
+
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
+		struct drm_crtc_state *crtc_state;
+
+		crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(crtc_state))
+			return PTR_ERR(crtc_state);
+
+		crtc_state->mode_changed = true;
+	}
+
+	return 0;
+}
+
 static void vc4_hdmi_connector_reset(struct drm_connector *connector)
 {
 	struct vc4_hdmi_connector_state *old_state =
@@ -263,6 +288,7 @@ static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
 
 static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = {
 	.get_modes = vc4_hdmi_connector_get_modes,
+	.atomic_check = vc4_hdmi_connector_atomic_check,
 };
 
 static int vc4_hdmi_connector_init(struct drm_device *dev,
@@ -299,6 +325,9 @@ static int vc4_hdmi_connector_init(struct drm_device *dev,
 	connector->interlace_allowed = 1;
 	connector->doublescan_allowed = 0;
 
+	if (vc4_hdmi->variant->supports_hdr)
+		drm_connector_attach_hdr_output_metadata_property(connector);
+
 	drm_connector_attach_encoder(connector, encoder);
 
 	return 0;
@@ -432,6 +461,25 @@ static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder)
 	vc4_hdmi_write_infoframe(encoder, &frame);
 }
 
+static void vc4_hdmi_set_hdr_infoframe(struct drm_encoder *encoder)
+{
+	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+	struct drm_connector *connector = &vc4_hdmi->connector;
+	struct drm_connector_state *conn_state = connector->state;
+	union hdmi_infoframe frame;
+
+	if (!vc4_hdmi->variant->supports_hdr)
+		return;
+
+	if (!conn_state->hdr_output_metadata)
+		return;
+
+	if (drm_hdmi_infoframe_set_hdr_metadata(&frame.drm, conn_state))
+		return;
+
+	vc4_hdmi_write_infoframe(encoder, &frame);
+}
+
 static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 {
 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
@@ -444,6 +492,8 @@ static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 	 */
 	if (vc4_hdmi->audio.streaming)
 		vc4_hdmi_set_audio_infoframe(encoder);
+
+	vc4_hdmi_set_hdr_infoframe(encoder);
 }
 
 static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
@@ -2101,6 +2151,7 @@ static const struct vc4_hdmi_variant bcm2835_variant = {
 	.phy_rng_enable		= vc4_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc4_hdmi_phy_rng_disable,
 	.channel_map		= vc4_hdmi_channel_map,
+	.supports_hdr		= false,
 };
 
 static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
@@ -2128,6 +2179,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
 	.channel_map		= vc5_hdmi_channel_map,
+	.supports_hdr		= true,
 };
 
 static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
@@ -2155,6 +2207,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
 	.channel_map		= vc5_hdmi_channel_map,
+	.supports_hdr		= true,
 };
 
 static const struct of_device_id vc4_hdmi_dt_match[] = {
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 3cebd1fd00fc..060bcaefbeb5 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -99,6 +99,9 @@ struct vc4_hdmi_variant {
 
 	/* Callback to get channel map */
 	u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
+
+	/* Enables HDR metadata */
+	bool supports_hdr;
 };
 
 /* HDMI audio information */
-- 
2.30.2

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[PATCH 3/3] drm/vc4: Add HDR metadata property to the VC5 HDMI connectors

[Maxime Ripard]

From: Dave Stevenson <dave.stevenson@raspberrypi.com>

Now that we can export deeper colour depths, add in the signalling
for HDR metadata.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 53 ++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/vc4/vc4_hdmi.h |  3 ++
 2 files changed, 56 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index eee9751009c2..c8846cf9dd24 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -214,6 +214,31 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 	return ret;
 }
 
+static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector,
+					  struct drm_atomic_state *state)
+{
+	struct drm_connector_state *old_state =
+		drm_atomic_get_old_connector_state(state, connector);
+	struct drm_connector_state *new_state =
+		drm_atomic_get_new_connector_state(state, connector);
+	struct drm_crtc *crtc = new_state->crtc;
+
+	if (!crtc)
+		return 0;
+
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
+		struct drm_crtc_state *crtc_state;
+
+		crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(crtc_state))
+			return PTR_ERR(crtc_state);
+
+		crtc_state->mode_changed = true;
+	}
+
+	return 0;
+}
+
 static void vc4_hdmi_connector_reset(struct drm_connector *connector)
 {
 	struct vc4_hdmi_connector_state *old_state =
@@ -263,6 +288,7 @@ static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
 
 static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = {
 	.get_modes = vc4_hdmi_connector_get_modes,
+	.atomic_check = vc4_hdmi_connector_atomic_check,
 };
 
 static int vc4_hdmi_connector_init(struct drm_device *dev,
@@ -299,6 +325,9 @@ static int vc4_hdmi_connector_init(struct drm_device *dev,
 	connector->interlace_allowed = 1;
 	connector->doublescan_allowed = 0;
 
+	if (vc4_hdmi->variant->supports_hdr)
+		drm_connector_attach_hdr_output_metadata_property(connector);
+
 	drm_connector_attach_encoder(connector, encoder);
 
 	return 0;
@@ -432,6 +461,25 @@ static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder)
 	vc4_hdmi_write_infoframe(encoder, &frame);
 }
 
+static void vc4_hdmi_set_hdr_infoframe(struct drm_encoder *encoder)
+{
+	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+	struct drm_connector *connector = &vc4_hdmi->connector;
+	struct drm_connector_state *conn_state = connector->state;
+	union hdmi_infoframe frame;
+
+	if (!vc4_hdmi->variant->supports_hdr)
+		return;
+
+	if (!conn_state->hdr_output_metadata)
+		return;
+
+	if (drm_hdmi_infoframe_set_hdr_metadata(&frame.drm, conn_state))
+		return;
+
+	vc4_hdmi_write_infoframe(encoder, &frame);
+}
+
 static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 {
 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
@@ -444,6 +492,8 @@ static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 	 */
 	if (vc4_hdmi->audio.streaming)
 		vc4_hdmi_set_audio_infoframe(encoder);
+
+	vc4_hdmi_set_hdr_infoframe(encoder);
 }
 
 static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
@@ -2101,6 +2151,7 @@ static const struct vc4_hdmi_variant bcm2835_variant = {
 	.phy_rng_enable		= vc4_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc4_hdmi_phy_rng_disable,
 	.channel_map		= vc4_hdmi_channel_map,
+	.supports_hdr		= false,
 };
 
 static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
@@ -2128,6 +2179,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
 	.channel_map		= vc5_hdmi_channel_map,
+	.supports_hdr		= true,
 };
 
 static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
@@ -2155,6 +2207,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
 	.channel_map		= vc5_hdmi_channel_map,
+	.supports_hdr		= true,
 };
 
 static const struct of_device_id vc4_hdmi_dt_match[] = {
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 3cebd1fd00fc..060bcaefbeb5 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -99,6 +99,9 @@ struct vc4_hdmi_variant {
 
 	/* Callback to get channel map */
 	u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
+
+	/* Enables HDR metadata */
+	bool supports_hdr;
 };
 
 /* HDMI audio information */
-- 
2.30.2

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[Intel-gfx] ✗ Fi.CI.BUILD: failure for series starting with [1/3] drm/connector: Create a helper to attach the hdr_output_metadata property

[Patchwork]

== Series Details ==

Series: series starting with [1/3] drm/connector: Create a helper to attach the hdr_output_metadata property
URL   : https://patchwork.freedesktop.org/series/88173/
State : failure

== Summary ==

CALL    scripts/checksyscalls.sh
  CALL    scripts/atomic/check-atomics.sh
  DESCEND  objtool
  CHK     include/generated/compile.h
  CC [M]  drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.o
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function ‘amdgpu_dm_atomic_commit_tail’:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8341:4: error: implicit declaration of function ‘is_hdr_metadata_different’; did you mean ‘is_scaling_state_different’? [-Werror=implicit-function-declaration]
    is_hdr_metadata_different(old_con_state, new_con_state);
    ^~~~~~~~~~~~~~~~~~~~~~~~~
    is_scaling_state_different
cc1: some warnings being treated as errors
scripts/Makefile.build:271: recipe for target 'drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.o' failed
make[4]: *** [drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.o] Error 1
scripts/Makefile.build:514: recipe for target 'drivers/gpu/drm/amd/amdgpu' failed
make[3]: *** [drivers/gpu/drm/amd/amdgpu] Error 2
scripts/Makefile.build:514: recipe for target 'drivers/gpu/drm' failed
make[2]: *** [drivers/gpu/drm] Error 2
scripts/Makefile.build:514: recipe for target 'drivers/gpu' failed
make[1]: *** [drivers/gpu] Error 2
Makefile:1851: recipe for target 'drivers' failed
make: *** [drivers] Error 2


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Re: [PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 13328 bytes --]

Hi Maxime,

I love your patch! Yet something to improve:

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-tip/drm-tip linus/master v5.12-rc3 next-20210319]
[cannot apply to anholt/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Maxime-Ripard/drm-connector-Create-a-helper-to-attach-the-hdr_output_metadata-property/20210319-205157
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: sparc64-randconfig-r035-20210318 (attached as .config)
compiler: sparc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/e12a697958cd6235d678394450f4cb7dbf958ed5
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Maxime-Ripard/drm-connector-Create-a-helper-to-attach-the-hdr_output_metadata-property/20210319-205157
        git checkout e12a697958cd6235d678394450f4cb7dbf958ed5
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_commit_cursors':
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:7678:44: warning: variable 'new_plane_state' set but not used [-Wunused-but-set-variable]
    7678 |  struct drm_plane_state *old_plane_state, *new_plane_state;
         |                                            ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_atomic_commit_tail':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8327:4: error: implicit declaration of function 'is_hdr_metadata_different' [-Werror=implicit-function-declaration]
    8327 |    is_hdr_metadata_different(old_con_state, new_con_state);
         |    ^~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for FRAME_POINTER
   Depends on DEBUG_KERNEL && (M68K || UML || SUPERH) || ARCH_WANT_FRAME_POINTERS || MCOUNT
   Selected by
   - LATENCYTOP && DEBUG_KERNEL && STACKTRACE_SUPPORT && PROC_FS && !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM && !ARC && !X86
   - LOCKDEP && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && !MIPS && !PPC && !ARM && !S390 && !MICROBLAZE && !ARC && !X86


vim +/is_hdr_metadata_different +8327 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c

e7b07ceef2a650 Harry Wentland      2017-08-10  8293  
02d6a6fcdf68c4 David Francis       2018-12-18  8294  	/* Handle connector state changes */
c2cea7063b85fc Leo (Sunpeng  Li    2017-10-12  8295) 	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8296) 		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8297) 		struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8298) 		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
efc8278eecfd5e Anson Jacob         2021-02-18  8299  		struct dc_surface_update dummy_updates[MAX_SURFACES];
19afd79951e630 Nathan Chancellor   2019-02-01  8300  		struct dc_stream_update stream_update;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8301  		struct dc_info_packet hdr_packet;
e7b07ceef2a650 Harry Wentland      2017-08-10  8302  		struct dc_stream_status *status = NULL;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8303  		bool abm_changed, hdr_changed, scaling_changed;
e7b07ceef2a650 Harry Wentland      2017-08-10  8304  
efc8278eecfd5e Anson Jacob         2021-02-18  8305  		memset(&dummy_updates, 0, sizeof(dummy_updates));
19afd79951e630 Nathan Chancellor   2019-02-01  8306  		memset(&stream_update, 0, sizeof(stream_update));
19afd79951e630 Nathan Chancellor   2019-02-01  8307  
44d09c6a577c8e Harry Wentland      2018-03-15  8308  		if (acrtc) {
0bc9706db3a35b Leo (Sunpeng  Li    2017-10-12  8309) 			new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
44d09c6a577c8e Harry Wentland      2018-03-15  8310  			old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
44d09c6a577c8e Harry Wentland      2018-03-15  8311  		}
0bc9706db3a35b Leo (Sunpeng  Li    2017-10-12  8312) 
e7b07ceef2a650 Harry Wentland      2017-08-10  8313  		/* Skip any modesets/resets */
0bc9706db3a35b Leo (Sunpeng  Li    2017-10-12  8314) 		if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state))
e7b07ceef2a650 Harry Wentland      2017-08-10  8315  			continue;
e7b07ceef2a650 Harry Wentland      2017-08-10  8316  
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8317) 		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
c1ee92f94ce3b9 David Francis       2018-11-26  8318  		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
c1ee92f94ce3b9 David Francis       2018-11-26  8319  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8320  		scaling_changed = is_scaling_state_different(dm_new_con_state,
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8321  							     dm_old_con_state);
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8322  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8323  		abm_changed = dm_new_crtc_state->abm_level !=
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8324  			      dm_old_crtc_state->abm_level;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8325  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8326  		hdr_changed =
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28 @8327  			is_hdr_metadata_different(old_con_state, new_con_state);
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8328  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8329  		if (!scaling_changed && !abm_changed && !hdr_changed)
c1ee92f94ce3b9 David Francis       2018-11-26  8330  			continue;
e7b07ceef2a650 Harry Wentland      2017-08-10  8331  
b6e881c947417e Dmytro Laktyushkin  2019-09-13  8332  		stream_update.stream = dm_new_crtc_state->stream;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8333  		if (scaling_changed) {
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8334) 			update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode,
b6e881c947417e Dmytro Laktyushkin  2019-09-13  8335  					dm_new_con_state, dm_new_crtc_state->stream);
e7b07ceef2a650 Harry Wentland      2017-08-10  8336  
02d6a6fcdf68c4 David Francis       2018-12-18  8337  			stream_update.src = dm_new_crtc_state->stream->src;
02d6a6fcdf68c4 David Francis       2018-12-18  8338  			stream_update.dst = dm_new_crtc_state->stream->dst;
02d6a6fcdf68c4 David Francis       2018-12-18  8339  		}
02d6a6fcdf68c4 David Francis       2018-12-18  8340  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8341  		if (abm_changed) {
02d6a6fcdf68c4 David Francis       2018-12-18  8342  			dm_new_crtc_state->stream->abm_level = dm_new_crtc_state->abm_level;
02d6a6fcdf68c4 David Francis       2018-12-18  8343  
02d6a6fcdf68c4 David Francis       2018-12-18  8344  			stream_update.abm_level = &dm_new_crtc_state->abm_level;
02d6a6fcdf68c4 David Francis       2018-12-18  8345  		}
70e8ffc55b98f3 Harry Wentland      2017-11-10  8346  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8347  		if (hdr_changed) {
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8348  			fill_hdr_info_packet(new_con_state, &hdr_packet);
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8349  			stream_update.hdr_static_metadata = &hdr_packet;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8350  		}
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8351  
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8352) 		status = dc_stream_get_status(dm_new_crtc_state->stream);
e7b07ceef2a650 Harry Wentland      2017-08-10  8353  		WARN_ON(!status);
3be5262e353b8a Harry Wentland      2017-07-27  8354  		WARN_ON(!status->plane_count);
e7b07ceef2a650 Harry Wentland      2017-08-10  8355  
02d6a6fcdf68c4 David Francis       2018-12-18  8356  		/*
02d6a6fcdf68c4 David Francis       2018-12-18  8357  		 * TODO: DC refuses to perform stream updates without a dc_surface_update.
02d6a6fcdf68c4 David Francis       2018-12-18  8358  		 * Here we create an empty update on each plane.
02d6a6fcdf68c4 David Francis       2018-12-18  8359  		 * To fix this, DC should permit updating only stream properties.
02d6a6fcdf68c4 David Francis       2018-12-18  8360  		 */
02d6a6fcdf68c4 David Francis       2018-12-18  8361  		for (j = 0; j < status->plane_count; j++)
efc8278eecfd5e Anson Jacob         2021-02-18  8362  			dummy_updates[j].surface = status->plane_states[0];
98e6436d3af5fe Anthony Koo         2018-08-21  8363  
02d6a6fcdf68c4 David Francis       2018-12-18  8364  
02d6a6fcdf68c4 David Francis       2018-12-18  8365  		mutex_lock(&dm->dc_lock);
02d6a6fcdf68c4 David Francis       2018-12-18  8366  		dc_commit_updates_for_stream(dm->dc,
efc8278eecfd5e Anson Jacob         2021-02-18  8367  						     dummy_updates,
3be5262e353b8a Harry Wentland      2017-07-27  8368  						     status->plane_count,
02d6a6fcdf68c4 David Francis       2018-12-18  8369  						     dm_new_crtc_state->stream,
efc8278eecfd5e Anson Jacob         2021-02-18  8370  						     &stream_update,
efc8278eecfd5e Anson Jacob         2021-02-18  8371  						     dc_state);
02d6a6fcdf68c4 David Francis       2018-12-18  8372  		mutex_unlock(&dm->dc_lock);
e7b07ceef2a650 Harry Wentland      2017-08-10  8373  	}
e7b07ceef2a650 Harry Wentland      2017-08-10  8374  
b5e83f6fe1f003 Nicholas Kazlauskas 2019-04-08  8375  	/* Count number of newly disabled CRTCs for dropping PM refs later. */
e1fc2dca1295c4 Leo (Sunpeng  Li    2017-10-18  8376) 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
e1fc2dca1295c4 Leo (Sunpeng  Li    2017-10-18  8377) 				      new_crtc_state, i) {
fe2a19652918a5 Lyude Paul          2018-06-21  8378  		if (old_crtc_state->active && !new_crtc_state->active)
fe2a19652918a5 Lyude Paul          2018-06-21  8379  			crtc_disable_count++;
fe2a19652918a5 Lyude Paul          2018-06-21  8380  
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8381) 		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
e1fc2dca1295c4 Leo (Sunpeng  Li    2017-10-18  8382) 		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
66b0c973d7f74e Mario Kleiner       2019-03-29  8383  
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8384  		/* For freesync config update on crtc state and params for irq */
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8385  		update_stream_irq_parameters(dm, dm_new_crtc_state);
057be086603feb Nicholas Kazlauskas 2019-04-15  8386  
66b0c973d7f74e Mario Kleiner       2019-03-29  8387  		/* Handle vrr on->off / off->on transitions */
66b0c973d7f74e Mario Kleiner       2019-03-29  8388  		amdgpu_dm_handle_vrr_transition(dm_old_crtc_state,
66b0c973d7f74e Mario Kleiner       2019-03-29  8389  						dm_new_crtc_state);
e7b07ceef2a650 Harry Wentland      2017-08-10  8390  	}
e7b07ceef2a650 Harry Wentland      2017-08-10  8391  
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8392  	/**
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8393  	 * Enable interrupts for CRTCs that are newly enabled or went through
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8394  	 * a modeset. It was intentionally deferred until after the front end
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8395  	 * state was modified to wait until the OTG was on and so the IRQ
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8396  	 * handlers didn't access stale or invalid state.
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8397  	 */
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8398  	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8399  		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8400  
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8401  		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8402  
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8403  		if (new_crtc_state->active &&
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8404  		    (!old_crtc_state->active ||
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8405  		     drm_atomic_crtc_needs_modeset(new_crtc_state))) {
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8406  			dc_stream_retain(dm_new_crtc_state->stream);
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8407  			acrtc->dm_irq_params.stream = dm_new_crtc_state->stream;
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8408  			manage_dm_interrupts(adev, acrtc, true);
e2881d6d0a2653 Rodrigo Siqueira    2021-01-07  8409  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[kernel test robot]

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Hi Maxime,

I love your patch! Yet something to improve:

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-tip/drm-tip linus/master v5.12-rc3 next-20210319]
[cannot apply to anholt/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Maxime-Ripard/drm-connector-Create-a-helper-to-attach-the-hdr_output_metadata-property/20210319-205157
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: sparc64-randconfig-r035-20210318 (attached as .config)
compiler: sparc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/e12a697958cd6235d678394450f4cb7dbf958ed5
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Maxime-Ripard/drm-connector-Create-a-helper-to-attach-the-hdr_output_metadata-property/20210319-205157
        git checkout e12a697958cd6235d678394450f4cb7dbf958ed5
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_commit_cursors':
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:7678:44: warning: variable 'new_plane_state' set but not used [-Wunused-but-set-variable]
    7678 |  struct drm_plane_state *old_plane_state, *new_plane_state;
         |                                            ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_atomic_commit_tail':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8327:4: error: implicit declaration of function 'is_hdr_metadata_different' [-Werror=implicit-function-declaration]
    8327 |    is_hdr_metadata_different(old_con_state, new_con_state);
         |    ^~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for FRAME_POINTER
   Depends on DEBUG_KERNEL && (M68K || UML || SUPERH) || ARCH_WANT_FRAME_POINTERS || MCOUNT
   Selected by
   - LATENCYTOP && DEBUG_KERNEL && STACKTRACE_SUPPORT && PROC_FS && !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM && !ARC && !X86
   - LOCKDEP && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && !MIPS && !PPC && !ARM && !S390 && !MICROBLAZE && !ARC && !X86


vim +/is_hdr_metadata_different +8327 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c

e7b07ceef2a650 Harry Wentland      2017-08-10  8293  
02d6a6fcdf68c4 David Francis       2018-12-18  8294  	/* Handle connector state changes */
c2cea7063b85fc Leo (Sunpeng  Li    2017-10-12  8295) 	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8296) 		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8297) 		struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8298) 		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
efc8278eecfd5e Anson Jacob         2021-02-18  8299  		struct dc_surface_update dummy_updates[MAX_SURFACES];
19afd79951e630 Nathan Chancellor   2019-02-01  8300  		struct dc_stream_update stream_update;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8301  		struct dc_info_packet hdr_packet;
e7b07ceef2a650 Harry Wentland      2017-08-10  8302  		struct dc_stream_status *status = NULL;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8303  		bool abm_changed, hdr_changed, scaling_changed;
e7b07ceef2a650 Harry Wentland      2017-08-10  8304  
efc8278eecfd5e Anson Jacob         2021-02-18  8305  		memset(&dummy_updates, 0, sizeof(dummy_updates));
19afd79951e630 Nathan Chancellor   2019-02-01  8306  		memset(&stream_update, 0, sizeof(stream_update));
19afd79951e630 Nathan Chancellor   2019-02-01  8307  
44d09c6a577c8e Harry Wentland      2018-03-15  8308  		if (acrtc) {
0bc9706db3a35b Leo (Sunpeng  Li    2017-10-12  8309) 			new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
44d09c6a577c8e Harry Wentland      2018-03-15  8310  			old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
44d09c6a577c8e Harry Wentland      2018-03-15  8311  		}
0bc9706db3a35b Leo (Sunpeng  Li    2017-10-12  8312) 
e7b07ceef2a650 Harry Wentland      2017-08-10  8313  		/* Skip any modesets/resets */
0bc9706db3a35b Leo (Sunpeng  Li    2017-10-12  8314) 		if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state))
e7b07ceef2a650 Harry Wentland      2017-08-10  8315  			continue;
e7b07ceef2a650 Harry Wentland      2017-08-10  8316  
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8317) 		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
c1ee92f94ce3b9 David Francis       2018-11-26  8318  		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
c1ee92f94ce3b9 David Francis       2018-11-26  8319  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8320  		scaling_changed = is_scaling_state_different(dm_new_con_state,
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8321  							     dm_old_con_state);
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8322  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8323  		abm_changed = dm_new_crtc_state->abm_level !=
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8324  			      dm_old_crtc_state->abm_level;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8325  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8326  		hdr_changed =
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28 @8327  			is_hdr_metadata_different(old_con_state, new_con_state);
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8328  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8329  		if (!scaling_changed && !abm_changed && !hdr_changed)
c1ee92f94ce3b9 David Francis       2018-11-26  8330  			continue;
e7b07ceef2a650 Harry Wentland      2017-08-10  8331  
b6e881c947417e Dmytro Laktyushkin  2019-09-13  8332  		stream_update.stream = dm_new_crtc_state->stream;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8333  		if (scaling_changed) {
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8334) 			update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode,
b6e881c947417e Dmytro Laktyushkin  2019-09-13  8335  					dm_new_con_state, dm_new_crtc_state->stream);
e7b07ceef2a650 Harry Wentland      2017-08-10  8336  
02d6a6fcdf68c4 David Francis       2018-12-18  8337  			stream_update.src = dm_new_crtc_state->stream->src;
02d6a6fcdf68c4 David Francis       2018-12-18  8338  			stream_update.dst = dm_new_crtc_state->stream->dst;
02d6a6fcdf68c4 David Francis       2018-12-18  8339  		}
02d6a6fcdf68c4 David Francis       2018-12-18  8340  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8341  		if (abm_changed) {
02d6a6fcdf68c4 David Francis       2018-12-18  8342  			dm_new_crtc_state->stream->abm_level = dm_new_crtc_state->abm_level;
02d6a6fcdf68c4 David Francis       2018-12-18  8343  
02d6a6fcdf68c4 David Francis       2018-12-18  8344  			stream_update.abm_level = &dm_new_crtc_state->abm_level;
02d6a6fcdf68c4 David Francis       2018-12-18  8345  		}
70e8ffc55b98f3 Harry Wentland      2017-11-10  8346  
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8347  		if (hdr_changed) {
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8348  			fill_hdr_info_packet(new_con_state, &hdr_packet);
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8349  			stream_update.hdr_static_metadata = &hdr_packet;
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8350  		}
b232d4ed92eafb Nicholas Kazlauskas 2019-05-28  8351  
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8352) 		status = dc_stream_get_status(dm_new_crtc_state->stream);
e7b07ceef2a650 Harry Wentland      2017-08-10  8353  		WARN_ON(!status);
3be5262e353b8a Harry Wentland      2017-07-27  8354  		WARN_ON(!status->plane_count);
e7b07ceef2a650 Harry Wentland      2017-08-10  8355  
02d6a6fcdf68c4 David Francis       2018-12-18  8356  		/*
02d6a6fcdf68c4 David Francis       2018-12-18  8357  		 * TODO: DC refuses to perform stream updates without a dc_surface_update.
02d6a6fcdf68c4 David Francis       2018-12-18  8358  		 * Here we create an empty update on each plane.
02d6a6fcdf68c4 David Francis       2018-12-18  8359  		 * To fix this, DC should permit updating only stream properties.
02d6a6fcdf68c4 David Francis       2018-12-18  8360  		 */
02d6a6fcdf68c4 David Francis       2018-12-18  8361  		for (j = 0; j < status->plane_count; j++)
efc8278eecfd5e Anson Jacob         2021-02-18  8362  			dummy_updates[j].surface = status->plane_states[0];
98e6436d3af5fe Anthony Koo         2018-08-21  8363  
02d6a6fcdf68c4 David Francis       2018-12-18  8364  
02d6a6fcdf68c4 David Francis       2018-12-18  8365  		mutex_lock(&dm->dc_lock);
02d6a6fcdf68c4 David Francis       2018-12-18  8366  		dc_commit_updates_for_stream(dm->dc,
efc8278eecfd5e Anson Jacob         2021-02-18  8367  						     dummy_updates,
3be5262e353b8a Harry Wentland      2017-07-27  8368  						     status->plane_count,
02d6a6fcdf68c4 David Francis       2018-12-18  8369  						     dm_new_crtc_state->stream,
efc8278eecfd5e Anson Jacob         2021-02-18  8370  						     &stream_update,
efc8278eecfd5e Anson Jacob         2021-02-18  8371  						     dc_state);
02d6a6fcdf68c4 David Francis       2018-12-18  8372  		mutex_unlock(&dm->dc_lock);
e7b07ceef2a650 Harry Wentland      2017-08-10  8373  	}
e7b07ceef2a650 Harry Wentland      2017-08-10  8374  
b5e83f6fe1f003 Nicholas Kazlauskas 2019-04-08  8375  	/* Count number of newly disabled CRTCs for dropping PM refs later. */
e1fc2dca1295c4 Leo (Sunpeng  Li    2017-10-18  8376) 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
e1fc2dca1295c4 Leo (Sunpeng  Li    2017-10-18  8377) 				      new_crtc_state, i) {
fe2a19652918a5 Lyude Paul          2018-06-21  8378  		if (old_crtc_state->active && !new_crtc_state->active)
fe2a19652918a5 Lyude Paul          2018-06-21  8379  			crtc_disable_count++;
fe2a19652918a5 Lyude Paul          2018-06-21  8380  
54d76575246798 Leo (Sunpeng  Li    2017-10-12  8381) 		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
e1fc2dca1295c4 Leo (Sunpeng  Li    2017-10-18  8382) 		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
66b0c973d7f74e Mario Kleiner       2019-03-29  8383  
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8384  		/* For freesync config update on crtc state and params for irq */
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8385  		update_stream_irq_parameters(dm, dm_new_crtc_state);
057be086603feb Nicholas Kazlauskas 2019-04-15  8386  
66b0c973d7f74e Mario Kleiner       2019-03-29  8387  		/* Handle vrr on->off / off->on transitions */
66b0c973d7f74e Mario Kleiner       2019-03-29  8388  		amdgpu_dm_handle_vrr_transition(dm_old_crtc_state,
66b0c973d7f74e Mario Kleiner       2019-03-29  8389  						dm_new_crtc_state);
e7b07ceef2a650 Harry Wentland      2017-08-10  8390  	}
e7b07ceef2a650 Harry Wentland      2017-08-10  8391  
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8392  	/**
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8393  	 * Enable interrupts for CRTCs that are newly enabled or went through
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8394  	 * a modeset. It was intentionally deferred until after the front end
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8395  	 * state was modified to wait until the OTG was on and so the IRQ
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8396  	 * handlers didn't access stale or invalid state.
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8397  	 */
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8398  	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8399  		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8400  
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8401  		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8402  
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8403  		if (new_crtc_state->active &&
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8404  		    (!old_crtc_state->active ||
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8405  		     drm_atomic_crtc_needs_modeset(new_crtc_state))) {
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8406  			dc_stream_retain(dm_new_crtc_state->stream);
585d450c76d1d5 Aurabindo Pillai    2020-08-12  8407  			acrtc->dm_irq_params.stream = dm_new_crtc_state->stream;
8fe684e97c86e3 Nicholas Kazlauskas 2020-07-13  8408  			manage_dm_interrupts(adev, acrtc, true);
e2881d6d0a2653 Rodrigo Siqueira    2021-01-07  8409  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[-- Attachment #2: config.gz --]
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Re: [PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Harry Wentland]

On 2021-03-19 8:49 a.m., Maxime Ripard wrote:
> All the drivers that support the HDR metadata property have a similar
> function to compare the metadata from one connector state to the next,
> and force a mode change if they differ.
> 
> All these functions run pretty much the same code, so let's turn it into
> an helper that can be shared across those drivers.
> 
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Patches 1 & 2 are
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Harry

> ---
>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
>   drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
>   drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
>   drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
>   include/drm/drm_connector.h                   |  2 ++
>   5 files changed, 33 insertions(+), 48 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 06908a3cee0f..4eb5201e566a 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -5924,25 +5924,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state,
>   	return 0;
>   }
>   
> -static bool
> -is_hdr_metadata_different(const struct drm_connector_state *old_state,
> -			  const struct drm_connector_state *new_state)
> -{
> -	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> -	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> -
> -	if (old_blob != new_blob) {
> -		if (old_blob && new_blob &&
> -		    old_blob->length == new_blob->length)
> -			return memcmp(old_blob->data, new_blob->data,
> -				      old_blob->length);
> -
> -		return true;
> -	}
> -
> -	return false;
> -}
> -
>   static int
>   amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>   				 struct drm_atomic_state *state)
> @@ -5960,7 +5941,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>   	if (!crtc)
>   		return 0;
>   
> -	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
> +	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
>   		struct dc_info_packet hdr_infopacket;
>   
>   		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index f24bbb840dbf..f871e33c2fc9 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
>   	return ret;
>   }
>   
> -static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
> -			       const struct drm_connector_state *new_state)
> -{
> -	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> -	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> -
> -	if (!old_blob || !new_blob)
> -		return old_blob == new_blob;
> -
> -	if (old_blob->length != new_blob->length)
> -		return false;
> -
> -	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
> -}
> -
>   static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
>   					  struct drm_atomic_state *state)
>   {
> @@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
>   	if (!crtc)
>   		return 0;
>   
> -	if (!hdr_metadata_equal(old_state, new_state)) {
> +	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
>   		crtc_state = drm_atomic_get_crtc_state(state, crtc);
>   		if (IS_ERR(crtc_state))
>   			return PTR_ERR(crtc_state);
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index e25248e23e18..d781a3a1e9bf 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -2170,6 +2170,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn
>   }
>   EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
>   
> +/**
> + * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
> + * @old_state: old connector state to compare
> + * @new_state: new connector state to compare
> + *
> + * This is used by HDR-enabled drivers to test whether the HDR metadata
> + * have changed between two different connector state (and thus probably
> + * requires a full blown mode change).
> + *
> + * Returns:
> + * True if the metadata are equal, False otherwise
> + */
> +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
> +					     struct drm_connector_state *new_state)
> +{
> +	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> +	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> +
> +	if (!old_blob || !new_blob)
> +		return old_blob == new_blob;
> +
> +	if (old_blob->length != new_blob->length)
> +		return false;
> +
> +	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
> +}
> +EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
> +
>   /**
>    * drm_connector_set_vrr_capable_property - sets the variable refresh rate
>    * capable property for a connector
> diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
> index e00fdc47c0eb..efec9454af5a 100644
> --- a/drivers/gpu/drm/i915/display/intel_atomic.c
> +++ b/drivers/gpu/drm/i915/display/intel_atomic.c
> @@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
>   	return -EINVAL;
>   }
>   
> -static bool blob_equal(const struct drm_property_blob *a,
> -		       const struct drm_property_blob *b)
> -{
> -	if (a && b)
> -		return a->length == b->length &&
> -			!memcmp(a->data, b->data, a->length);
> -
> -	return !a == !b;
> -}
> -
>   int intel_digital_connector_atomic_check(struct drm_connector *conn,
>   					 struct drm_atomic_state *state)
>   {
> @@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
>   	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
>   	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
>   	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
> -	    !blob_equal(new_conn_state->base.hdr_output_metadata,
> -			old_conn_state->base.hdr_output_metadata))
> +	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
>   		crtc_state->mode_changed = true;
>   
>   	return 0;
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 32172dab8427..1f51d73ca715 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
>   int drm_connector_attach_vrr_capable_property(
>   		struct drm_connector *connector);
>   int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
> +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
> +					     struct drm_connector_state *new_state);
>   int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
>   int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
>   int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
> 

Re: [PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Harry Wentland]

On 2021-03-19 8:49 a.m., Maxime Ripard wrote:
> All the drivers that support the HDR metadata property have a similar
> function to compare the metadata from one connector state to the next,
> and force a mode change if they differ.
> 
> All these functions run pretty much the same code, so let's turn it into
> an helper that can be shared across those drivers.
> 
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Patches 1 & 2 are
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Harry

> ---
>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
>   drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
>   drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
>   drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
>   include/drm/drm_connector.h                   |  2 ++
>   5 files changed, 33 insertions(+), 48 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 06908a3cee0f..4eb5201e566a 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -5924,25 +5924,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state,
>   	return 0;
>   }
>   
> -static bool
> -is_hdr_metadata_different(const struct drm_connector_state *old_state,
> -			  const struct drm_connector_state *new_state)
> -{
> -	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> -	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> -
> -	if (old_blob != new_blob) {
> -		if (old_blob && new_blob &&
> -		    old_blob->length == new_blob->length)
> -			return memcmp(old_blob->data, new_blob->data,
> -				      old_blob->length);
> -
> -		return true;
> -	}
> -
> -	return false;
> -}
> -
>   static int
>   amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>   				 struct drm_atomic_state *state)
> @@ -5960,7 +5941,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>   	if (!crtc)
>   		return 0;
>   
> -	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
> +	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
>   		struct dc_info_packet hdr_infopacket;
>   
>   		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index f24bbb840dbf..f871e33c2fc9 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
>   	return ret;
>   }
>   
> -static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
> -			       const struct drm_connector_state *new_state)
> -{
> -	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> -	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> -
> -	if (!old_blob || !new_blob)
> -		return old_blob == new_blob;
> -
> -	if (old_blob->length != new_blob->length)
> -		return false;
> -
> -	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
> -}
> -
>   static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
>   					  struct drm_atomic_state *state)
>   {
> @@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
>   	if (!crtc)
>   		return 0;
>   
> -	if (!hdr_metadata_equal(old_state, new_state)) {
> +	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
>   		crtc_state = drm_atomic_get_crtc_state(state, crtc);
>   		if (IS_ERR(crtc_state))
>   			return PTR_ERR(crtc_state);
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index e25248e23e18..d781a3a1e9bf 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -2170,6 +2170,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn
>   }
>   EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
>   
> +/**
> + * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
> + * @old_state: old connector state to compare
> + * @new_state: new connector state to compare
> + *
> + * This is used by HDR-enabled drivers to test whether the HDR metadata
> + * have changed between two different connector state (and thus probably
> + * requires a full blown mode change).
> + *
> + * Returns:
> + * True if the metadata are equal, False otherwise
> + */
> +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
> +					     struct drm_connector_state *new_state)
> +{
> +	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> +	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> +
> +	if (!old_blob || !new_blob)
> +		return old_blob == new_blob;
> +
> +	if (old_blob->length != new_blob->length)
> +		return false;
> +
> +	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
> +}
> +EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
> +
>   /**
>    * drm_connector_set_vrr_capable_property - sets the variable refresh rate
>    * capable property for a connector
> diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
> index e00fdc47c0eb..efec9454af5a 100644
> --- a/drivers/gpu/drm/i915/display/intel_atomic.c
> +++ b/drivers/gpu/drm/i915/display/intel_atomic.c
> @@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
>   	return -EINVAL;
>   }
>   
> -static bool blob_equal(const struct drm_property_blob *a,
> -		       const struct drm_property_blob *b)
> -{
> -	if (a && b)
> -		return a->length == b->length &&
> -			!memcmp(a->data, b->data, a->length);
> -
> -	return !a == !b;
> -}
> -
>   int intel_digital_connector_atomic_check(struct drm_connector *conn,
>   					 struct drm_atomic_state *state)
>   {
> @@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
>   	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
>   	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
>   	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
> -	    !blob_equal(new_conn_state->base.hdr_output_metadata,
> -			old_conn_state->base.hdr_output_metadata))
> +	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
>   		crtc_state->mode_changed = true;
>   
>   	return 0;
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 32172dab8427..1f51d73ca715 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
>   int drm_connector_attach_vrr_capable_property(
>   		struct drm_connector *connector);
>   int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
> +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
> +					     struct drm_connector_state *new_state);
>   int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
>   int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
>   int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
> 

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [Intel-gfx] [PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Harry Wentland]

On 2021-03-19 8:49 a.m., Maxime Ripard wrote:
> All the drivers that support the HDR metadata property have a similar
> function to compare the metadata from one connector state to the next,
> and force a mode change if they differ.
> 
> All these functions run pretty much the same code, so let's turn it into
> an helper that can be shared across those drivers.
> 
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Patches 1 & 2 are
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Harry

> ---
>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
>   drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
>   drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
>   drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
>   include/drm/drm_connector.h                   |  2 ++
>   5 files changed, 33 insertions(+), 48 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 06908a3cee0f..4eb5201e566a 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -5924,25 +5924,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state,
>   	return 0;
>   }
>   
> -static bool
> -is_hdr_metadata_different(const struct drm_connector_state *old_state,
> -			  const struct drm_connector_state *new_state)
> -{
> -	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> -	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> -
> -	if (old_blob != new_blob) {
> -		if (old_blob && new_blob &&
> -		    old_blob->length == new_blob->length)
> -			return memcmp(old_blob->data, new_blob->data,
> -				      old_blob->length);
> -
> -		return true;
> -	}
> -
> -	return false;
> -}
> -
>   static int
>   amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>   				 struct drm_atomic_state *state)
> @@ -5960,7 +5941,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>   	if (!crtc)
>   		return 0;
>   
> -	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
> +	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
>   		struct dc_info_packet hdr_infopacket;
>   
>   		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index f24bbb840dbf..f871e33c2fc9 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
>   	return ret;
>   }
>   
> -static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
> -			       const struct drm_connector_state *new_state)
> -{
> -	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> -	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> -
> -	if (!old_blob || !new_blob)
> -		return old_blob == new_blob;
> -
> -	if (old_blob->length != new_blob->length)
> -		return false;
> -
> -	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
> -}
> -
>   static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
>   					  struct drm_atomic_state *state)
>   {
> @@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
>   	if (!crtc)
>   		return 0;
>   
> -	if (!hdr_metadata_equal(old_state, new_state)) {
> +	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
>   		crtc_state = drm_atomic_get_crtc_state(state, crtc);
>   		if (IS_ERR(crtc_state))
>   			return PTR_ERR(crtc_state);
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index e25248e23e18..d781a3a1e9bf 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -2170,6 +2170,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn
>   }
>   EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
>   
> +/**
> + * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
> + * @old_state: old connector state to compare
> + * @new_state: new connector state to compare
> + *
> + * This is used by HDR-enabled drivers to test whether the HDR metadata
> + * have changed between two different connector state (and thus probably
> + * requires a full blown mode change).
> + *
> + * Returns:
> + * True if the metadata are equal, False otherwise
> + */
> +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
> +					     struct drm_connector_state *new_state)
> +{
> +	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> +	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> +
> +	if (!old_blob || !new_blob)
> +		return old_blob == new_blob;
> +
> +	if (old_blob->length != new_blob->length)
> +		return false;
> +
> +	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
> +}
> +EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
> +
>   /**
>    * drm_connector_set_vrr_capable_property - sets the variable refresh rate
>    * capable property for a connector
> diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
> index e00fdc47c0eb..efec9454af5a 100644
> --- a/drivers/gpu/drm/i915/display/intel_atomic.c
> +++ b/drivers/gpu/drm/i915/display/intel_atomic.c
> @@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
>   	return -EINVAL;
>   }
>   
> -static bool blob_equal(const struct drm_property_blob *a,
> -		       const struct drm_property_blob *b)
> -{
> -	if (a && b)
> -		return a->length == b->length &&
> -			!memcmp(a->data, b->data, a->length);
> -
> -	return !a == !b;
> -}
> -
>   int intel_digital_connector_atomic_check(struct drm_connector *conn,
>   					 struct drm_atomic_state *state)
>   {
> @@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
>   	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
>   	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
>   	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
> -	    !blob_equal(new_conn_state->base.hdr_output_metadata,
> -			old_conn_state->base.hdr_output_metadata))
> +	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
>   		crtc_state->mode_changed = true;
>   
>   	return 0;
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 32172dab8427..1f51d73ca715 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
>   int drm_connector_attach_vrr_capable_property(
>   		struct drm_connector *connector);
>   int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
> +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
> +					     struct drm_connector_state *new_state);
>   int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
>   int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
>   int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
> 

_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Re: [PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Harry Wentland]

On 2021-03-19 8:49 a.m., Maxime Ripard wrote:
> All the drivers that support the HDR metadata property have a similar
> function to compare the metadata from one connector state to the next,
> and force a mode change if they differ.
> 
> All these functions run pretty much the same code, so let's turn it into
> an helper that can be shared across those drivers.
> 
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Patches 1 & 2 are
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Harry

> ---
>   .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
>   drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
>   drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
>   drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
>   include/drm/drm_connector.h                   |  2 ++
>   5 files changed, 33 insertions(+), 48 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 06908a3cee0f..4eb5201e566a 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -5924,25 +5924,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state,
>   	return 0;
>   }
>   
> -static bool
> -is_hdr_metadata_different(const struct drm_connector_state *old_state,
> -			  const struct drm_connector_state *new_state)
> -{
> -	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> -	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> -
> -	if (old_blob != new_blob) {
> -		if (old_blob && new_blob &&
> -		    old_blob->length == new_blob->length)
> -			return memcmp(old_blob->data, new_blob->data,
> -				      old_blob->length);
> -
> -		return true;
> -	}
> -
> -	return false;
> -}
> -
>   static int
>   amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>   				 struct drm_atomic_state *state)
> @@ -5960,7 +5941,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
>   	if (!crtc)
>   		return 0;
>   
> -	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
> +	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
>   		struct dc_info_packet hdr_infopacket;
>   
>   		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index f24bbb840dbf..f871e33c2fc9 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
>   	return ret;
>   }
>   
> -static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
> -			       const struct drm_connector_state *new_state)
> -{
> -	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> -	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> -
> -	if (!old_blob || !new_blob)
> -		return old_blob == new_blob;
> -
> -	if (old_blob->length != new_blob->length)
> -		return false;
> -
> -	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
> -}
> -
>   static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
>   					  struct drm_atomic_state *state)
>   {
> @@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
>   	if (!crtc)
>   		return 0;
>   
> -	if (!hdr_metadata_equal(old_state, new_state)) {
> +	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
>   		crtc_state = drm_atomic_get_crtc_state(state, crtc);
>   		if (IS_ERR(crtc_state))
>   			return PTR_ERR(crtc_state);
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index e25248e23e18..d781a3a1e9bf 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -2170,6 +2170,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn
>   }
>   EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
>   
> +/**
> + * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
> + * @old_state: old connector state to compare
> + * @new_state: new connector state to compare
> + *
> + * This is used by HDR-enabled drivers to test whether the HDR metadata
> + * have changed between two different connector state (and thus probably
> + * requires a full blown mode change).
> + *
> + * Returns:
> + * True if the metadata are equal, False otherwise
> + */
> +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
> +					     struct drm_connector_state *new_state)
> +{
> +	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
> +	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
> +
> +	if (!old_blob || !new_blob)
> +		return old_blob == new_blob;
> +
> +	if (old_blob->length != new_blob->length)
> +		return false;
> +
> +	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
> +}
> +EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
> +
>   /**
>    * drm_connector_set_vrr_capable_property - sets the variable refresh rate
>    * capable property for a connector
> diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
> index e00fdc47c0eb..efec9454af5a 100644
> --- a/drivers/gpu/drm/i915/display/intel_atomic.c
> +++ b/drivers/gpu/drm/i915/display/intel_atomic.c
> @@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
>   	return -EINVAL;
>   }
>   
> -static bool blob_equal(const struct drm_property_blob *a,
> -		       const struct drm_property_blob *b)
> -{
> -	if (a && b)
> -		return a->length == b->length &&
> -			!memcmp(a->data, b->data, a->length);
> -
> -	return !a == !b;
> -}
> -
>   int intel_digital_connector_atomic_check(struct drm_connector *conn,
>   					 struct drm_atomic_state *state)
>   {
> @@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
>   	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
>   	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
>   	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
> -	    !blob_equal(new_conn_state->base.hdr_output_metadata,
> -			old_conn_state->base.hdr_output_metadata))
> +	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
>   		crtc_state->mode_changed = true;
>   
>   	return 0;
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 32172dab8427..1f51d73ca715 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
>   int drm_connector_attach_vrr_capable_property(
>   		struct drm_connector *connector);
>   int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
> +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
> +					     struct drm_connector_state *new_state);
>   int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
>   int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
>   int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
> 

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Re: [PATCH 1/3] drm/connector: Create a helper to attach the hdr_output_metadata property

[Jernej Škrabec]

Hi!

Dne petek, 19. marec 2021 ob 13:49:20 CET je Maxime Ripard napisal(a):
> All the drivers that implement HDR output call pretty much the same
> function to initialise the hdr_output_metadata property, and while the
> creation of that property is in a helper, every driver uses the same
> code to attach it.
> 
> Provide a helper for it as well
> 
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
> ---
>  .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  4 +---
>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     |  3 +--
>  drivers/gpu/drm/drm_connector.c               | 21 +++++++++++++++++++
>  drivers/gpu/drm/i915/display/intel_hdmi.c     |  3 +--
>  include/drm/drm_connector.h                   |  1 +
>  5 files changed, 25 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index
> 22124f76d0b5..06908a3cee0f 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -7017,9 +7017,7 @@ void amdgpu_dm_connector_init_helper(struct
> amdgpu_display_manager *dm, if (connector_type == DRM_MODE_CONNECTOR_HDMIA
> ||
>  	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
>  	    connector_type == DRM_MODE_CONNECTOR_eDP) {
> -		drm_object_attach_property(
> -			&aconnector->base.base,
> -			dm->ddev-
>mode_config.hdr_output_metadata_property, 0);
> +		
drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
> 
>  		if (!aconnector->mst_port)
>  			
drm_connector_attach_vrr_capable_property(&aconnector->base);
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index
> dda4fa9a1a08..f24bbb840dbf 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -2492,8 +2492,7 @@ static int dw_hdmi_connector_create(struct dw_hdmi
> *hdmi) drm_connector_attach_max_bpc_property(connector, 8, 16);
> 
>  	if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
> -		drm_object_attach_property(&connector->base,
> -			connector->dev-
>mode_config.hdr_output_metadata_property, 0);
> +		
drm_connector_attach_hdr_output_metadata_property(connector);
> 
>  	drm_connector_attach_encoder(connector, hdmi->bridge.encoder);
> 
> diff --git a/drivers/gpu/drm/drm_connector.c
> b/drivers/gpu/drm/drm_connector.c index 98b6ec45ef96..e25248e23e18 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -2149,6 +2149,27 @@ int drm_connector_attach_max_bpc_property(struct
> drm_connector *connector, }
>  EXPORT_SYMBOL(drm_connector_attach_max_bpc_property);
> 
> +/**
> + * drm_connector_attach_hdr_output_metadata_property - attach
> "HDR_OUTPUT_METADA" property + * @connector: connector to attach the
> property on.
> + *
> + * This is used to allow the userspace to send HDR Metadata to the
> + * driver.
> + *
> + * Returns:
> + * Zero on success, negative errno on failure.
> + */
> +int drm_connector_attach_hdr_output_metadata_property(struct drm_connector
> *connector) +{
> +	struct drm_device *dev = connector->dev;
> +	struct drm_property *prop = dev-
>mode_config.hdr_output_metadata_property;
> +
> +	drm_object_attach_property(&connector->base, prop, 0);
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
> +
>  /**
>   * drm_connector_set_vrr_capable_property - sets the variable refresh rate
>   * capable property for a connector
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c
> b/drivers/gpu/drm/i915/display/intel_hdmi.c index
> c5959590562b..52c051efb7b7 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
> @@ -2958,8 +2958,7 @@ intel_hdmi_add_properties(struct intel_hdmi
> *intel_hdmi, struct drm_connector *c
> drm_connector_attach_content_type_property(connector);
> 
>  	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
> -		drm_object_attach_property(&connector->base,
> -			connector->dev-
>mode_config.hdr_output_metadata_property, 0);
> +		
drm_connector_attach_hdr_output_metadata_property(connector);
> 
>  	if (!HAS_GMCH(dev_priv))
>  		drm_connector_attach_max_bpc_property(connector, 8, 
12);
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 1922b278ffad..32172dab8427 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1671,6 +1671,7 @@ int drm_connector_attach_scaling_mode_property(struct
> drm_connector *connector, u32 scaling_mode_mask);
>  int drm_connector_attach_vrr_capable_property(
>  		struct drm_connector *connector);
> +int drm_connector_attach_hdr_output_metadata_property(struct drm_connector
> *connector); int drm_mode_create_aspect_ratio_property(struct drm_device
> *dev); int drm_mode_create_hdmi_colorspace_property(struct drm_connector
> *connector); int drm_mode_create_dp_colorspace_property(struct
> drm_connector *connector);

For bridge part:
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>

Best regards,
Jernej



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Re: [PATCH 2/3] drm/connector: Add helper to compare HDR metadata

[Jernej Škrabec]

Hi!

Dne petek, 19. marec 2021 ob 13:49:21 CET je Maxime Ripard napisal(a):
> All the drivers that support the HDR metadata property have a similar
> function to compare the metadata from one connector state to the next,
> and force a mode change if they differ.
> 
> All these functions run pretty much the same code, so let's turn it into
> an helper that can be shared across those drivers.
> 
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>

For bridge part:
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>

Best regards,
Jernej



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