From c265f340eaa87aa5f979adfb23d7463af67b7f27 Mon Sep 17 00:00:00 2001 From: Harry Wentland Date: Tue, 29 Nov 2022 15:16:31 -0500 Subject: [PATCH] drm/connector: Allow drivers to pass list of supported colorspaces MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Drivers might not support all colorspaces defined in dp_colorspaces and hdmi_colorspaces. This results in undefined behavior when userspace is setting an unsupported colorspace. Allow drivers to pass the list of supported colorspaces when creating the colorspace property. v2: - Use 0 to indicate support for all colorspaces (Jani) - Print drm_dbg_kms message when drivers pass 0 to signal that drivers should specify supported colorspaecs explicity (Jani) v3: - Move changes to create a common colorspace_names array to separate patch v6: - Avoid magic when passing 0 for supported_colorspaces; be explicit in treating it as "all DP/HDMI" Signed-off-by: Harry Wentland Reviewed-by: Sebastian Wick Reviewed-by: Joshua Ashton Reviewed-by: Simon Ser Cc: Pekka Paalanen Cc: Sebastian Wick Cc: Vitaly.Prosyak@amd.com Cc: Uma Shankar Cc: Ville Syrjälä Cc: Joshua Ashton Cc: Jani Nikula Cc: Simon Ser Cc: Melissa Wen Cc: dri-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Alex Deucher --- drivers/gpu/drm/drm_connector.c | 24 +++++++++++++++---- .../gpu/drm/i915/display/intel_connector.c | 4 ++-- drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +- include/drm/drm_connector.h | 7 ++++-- 4 files changed, 28 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index e1d7a40e17763..3ed4cfcb350c4 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -2210,9 +2210,17 @@ static int drm_mode_create_colorspace_property(struct drm_connector *connector, * Returns: * Zero on success, negative errno on failure. */ -int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector) +int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector, + u32 supported_colorspaces) { - return drm_mode_create_colorspace_property(connector, hdmi_colorspaces); + u32 colorspaces; + + if (supported_colorspaces) + colorspaces = supported_colorspaces & hdmi_colorspaces; + else + colorspaces = hdmi_colorspaces; + + return drm_mode_create_colorspace_property(connector, colorspaces); } EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property); @@ -2226,9 +2234,17 @@ EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property); * Returns: * Zero on success, negative errno on failure. */ -int drm_mode_create_dp_colorspace_property(struct drm_connector *connector) +int drm_mode_create_dp_colorspace_property(struct drm_connector *connector, + u32 supported_colorspaces) { - return drm_mode_create_colorspace_property(connector, dp_colorspaces); + u32 colorspaces; + + if (supported_colorspaces) + colorspaces = supported_colorspaces & dp_colorspaces; + else + colorspaces = dp_colorspaces; + + return drm_mode_create_colorspace_property(connector, colorspaces); } EXPORT_SYMBOL(drm_mode_create_dp_colorspace_property); diff --git a/drivers/gpu/drm/i915/display/intel_connector.c b/drivers/gpu/drm/i915/display/intel_connector.c index 257afac348397..3abfe29d0b44b 100644 --- a/drivers/gpu/drm/i915/display/intel_connector.c +++ b/drivers/gpu/drm/i915/display/intel_connector.c @@ -280,14 +280,14 @@ intel_attach_aspect_ratio_property(struct drm_connector *connector) void intel_attach_hdmi_colorspace_property(struct drm_connector *connector) { - if (!drm_mode_create_hdmi_colorspace_property(connector)) + if (!drm_mode_create_hdmi_colorspace_property(connector, 0)) drm_connector_attach_colorspace_property(connector); } void intel_attach_dp_colorspace_property(struct drm_connector *connector) { - if (!drm_mode_create_dp_colorspace_property(connector)) + if (!drm_mode_create_dp_colorspace_property(connector, 0)) drm_connector_attach_colorspace_property(connector); } diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 06713d8b82b5d..482397d5cb48d 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -631,7 +631,7 @@ static int vc4_hdmi_connector_init(struct drm_device *dev, if (ret) return ret; - ret = drm_mode_create_hdmi_colorspace_property(connector); + ret = drm_mode_create_hdmi_colorspace_property(connector, 0); if (ret) return ret; diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 880220321867d..3cea003462059 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -30,6 +30,7 @@ #include #include #include +#include #include @@ -1994,8 +1995,10 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn 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); +int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector, + u32 supported_colorspaces); +int drm_mode_create_dp_colorspace_property(struct drm_connector *connector, + u32 supported_colorspaces); int drm_mode_create_content_type_property(struct drm_device *dev); int drm_mode_create_suggested_offset_properties(struct drm_device *dev);