[PATCH v6 00/13] Enable Colorspace connector property in amdgpu

[PATCH v6 00/13] Enable Colorspace connector property in amdgpu

[Harry Wentland]

This patchset is based on Joshua's previous patchset [1], as well
as my previous patchset [2].

It is
- enabling support for the colorspace property in amdgpu, as well as
- allowing drivers to specify the supported set of colorspaces, and

Colorspace, Infoframes, and YCbCr matrix
---------------------------------------

Even though the initial intent of the colorspace property was to set the
colorspace field in the respective HDMI AVI and DP SDP infoframes that
is not sufficient in all scenarios. For DP the colorspace information
also affects the MSA (main stream attribute) packet. For YUV output the
colorspace affects the RGB-to-YCbCr conversion matrix. The colorspace
field of the infopackets also depends on the encoding used, which is
something that is decided by the driver and not known to userspace.

For these reasons a driver will need to be able to select the supported
colorspaces at property creation.

Note: There seems to be an understanding that the colorspace property
should ONLY modify the infoframe. While this is current behavior and
sufficient in some cases it is nowhere specified that this should be the
only use of this property. As outlined above this limitation is not
going to work in all cases.

This patchset does not affect current behavior for the drivers that
implement this property: i915 and vc4.

In the future we might want to give userspace control over the encoding
format on the wire, in particular to avoid use of YUV420 when image
fidelity is important. This work would likely go hand in hand with a
min_bpc property and wouldn't conflict with the work done in this
patchset. I would expect this future work to tag along with a drm_crtc
or drm_connector's Color Pipeline, similar to the one propsed for
drm_plane [3].

Colorspace on crtc or connector?
--------------------------------

There have been suggestions of programming 'colorspace' on the drm_crtc
but I don't think the crtc is the right place for this property. The
drm_plane and drm_crtc will be used to offload color processing that
would normally be done via the GFX or other pipelines. The drm_connector
controls the signalling with the display and ensures the wire format is
appropriate for the encoding by programming the RGB-to-YCbCr matrix.

[1] https://patchwork.freedesktop.org/series/113632/
[2] https://patchwork.freedesktop.org/series/111865/
[3] https://lists.freedesktop.org/archives/dri-devel/2023-May/403173.html

v2:
- Tested with DP and HDMI analyzers
- Confirmed driver will fallback to lower bpc when needed
- Dropped hunk to set HDMI AVI infoframe as it was a no-op
- Fixed BT.2020 YCbCr colorimetry (JoshuaAshton)
- Simplify initialization of supported colorspaces (Jani)
- Fix kerneldoc (kernel test robot)

v3:
- Added documentation for colorspaces (Pekka, Joshua)
- Split 'Allow drivers to pass list of supported colorspaces' patch
  to pull out code to create common colorspace array and keep it separate
  from change to create only supported colorspaces

v4:
- Don't "deprecate" existing enum values
- Fixes based on review comments throughout
- Dropped Josh's RBs

v5:
- Add documentation that drivers are free to pick appropriate
  RGB or YCC variant

v6:
- Remove magic when drivers pass '0' as supported_colorspaces
  to indicate default support for all DP/HDMI colorspaces

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Michel Dänzer <michel.daenzer@mailbox.org>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org

Harry Wentland (10):
  drm/connector: Convert DRM_MODE_COLORIMETRY to enum
  drm/connector: Pull out common create_colorspace_property code
  drm/connector: Use common colorspace_names array
  drm/connector: Print connector colorspace in state debugfs
  drm/connector: Allow drivers to pass list of supported colorspaces
  drm/amd/display: Always pass connector_state to stream validation
  drm/amd/display: Register Colorspace property for DP and HDMI
  drm/amd/display: Signal mode_changed if colorspace changed
  drm/amd/display: Send correct DP colorspace infopacket
  drm/amd/display: Add debugfs for testing output colorspace

Joshua Ashton (3):
  drm/connector: Add enum documentation to drm_colorspace
  drm/amd/display: Always set crtcinfo from create_stream_for_sink
  drm/amd/display: Refactor avi_info_frame colorimetry determination

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  84 +++++---
 .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c |  57 ++++++
 .../gpu/drm/amd/display/dc/core/dc_resource.c |  28 ++-
 drivers/gpu/drm/drm_atomic.c                  |   1 +
 drivers/gpu/drm/drm_connector.c               | 189 +++++++++++-------
 .../gpu/drm/i915/display/intel_connector.c    |   4 +-
 drivers/gpu/drm/vc4/vc4_hdmi.c                |   2 +-
 include/drm/display/drm_dp.h                  |   2 +-
 include/drm/drm_connector.h                   | 129 +++++++++---
 9 files changed, 363 insertions(+), 133 deletions(-)

--
2.41.0

[PATCH v6 00/13] Enable Colorspace connector property in amdgpu

[Harry Wentland]

This patchset is based on Joshua's previous patchset [1], as well
as my previous patchset [2].

It is
- enabling support for the colorspace property in amdgpu, as well as
- allowing drivers to specify the supported set of colorspaces, and

Colorspace, Infoframes, and YCbCr matrix
---------------------------------------

Even though the initial intent of the colorspace property was to set the
colorspace field in the respective HDMI AVI and DP SDP infoframes that
is not sufficient in all scenarios. For DP the colorspace information
also affects the MSA (main stream attribute) packet. For YUV output the
colorspace affects the RGB-to-YCbCr conversion matrix. The colorspace
field of the infopackets also depends on the encoding used, which is
something that is decided by the driver and not known to userspace.

For these reasons a driver will need to be able to select the supported
colorspaces at property creation.

Note: There seems to be an understanding that the colorspace property
should ONLY modify the infoframe. While this is current behavior and
sufficient in some cases it is nowhere specified that this should be the
only use of this property. As outlined above this limitation is not
going to work in all cases.

This patchset does not affect current behavior for the drivers that
implement this property: i915 and vc4.

In the future we might want to give userspace control over the encoding
format on the wire, in particular to avoid use of YUV420 when image
fidelity is important. This work would likely go hand in hand with a
min_bpc property and wouldn't conflict with the work done in this
patchset. I would expect this future work to tag along with a drm_crtc
or drm_connector's Color Pipeline, similar to the one propsed for
drm_plane [3].

Colorspace on crtc or connector?
--------------------------------

There have been suggestions of programming 'colorspace' on the drm_crtc
but I don't think the crtc is the right place for this property. The
drm_plane and drm_crtc will be used to offload color processing that
would normally be done via the GFX or other pipelines. The drm_connector
controls the signalling with the display and ensures the wire format is
appropriate for the encoding by programming the RGB-to-YCbCr matrix.

[1] https://patchwork.freedesktop.org/series/113632/
[2] https://patchwork.freedesktop.org/series/111865/
[3] https://lists.freedesktop.org/archives/dri-devel/2023-May/403173.html

v2:
- Tested with DP and HDMI analyzers
- Confirmed driver will fallback to lower bpc when needed
- Dropped hunk to set HDMI AVI infoframe as it was a no-op
- Fixed BT.2020 YCbCr colorimetry (JoshuaAshton)
- Simplify initialization of supported colorspaces (Jani)
- Fix kerneldoc (kernel test robot)

v3:
- Added documentation for colorspaces (Pekka, Joshua)
- Split 'Allow drivers to pass list of supported colorspaces' patch
  to pull out code to create common colorspace array and keep it separate
  from change to create only supported colorspaces

v4:
- Don't "deprecate" existing enum values
- Fixes based on review comments throughout
- Dropped Josh's RBs

v5:
- Add documentation that drivers are free to pick appropriate
  RGB or YCC variant

v6:
- Remove magic when drivers pass '0' as supported_colorspaces
  to indicate default support for all DP/HDMI colorspaces

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Michel Dänzer <michel.daenzer@mailbox.org>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org

Harry Wentland (10):
  drm/connector: Convert DRM_MODE_COLORIMETRY to enum
  drm/connector: Pull out common create_colorspace_property code
  drm/connector: Use common colorspace_names array
  drm/connector: Print connector colorspace in state debugfs
  drm/connector: Allow drivers to pass list of supported colorspaces
  drm/amd/display: Always pass connector_state to stream validation
  drm/amd/display: Register Colorspace property for DP and HDMI
  drm/amd/display: Signal mode_changed if colorspace changed
  drm/amd/display: Send correct DP colorspace infopacket
  drm/amd/display: Add debugfs for testing output colorspace

Joshua Ashton (3):
  drm/connector: Add enum documentation to drm_colorspace
  drm/amd/display: Always set crtcinfo from create_stream_for_sink
  drm/amd/display: Refactor avi_info_frame colorimetry determination

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  84 +++++---
 .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c |  57 ++++++
 .../gpu/drm/amd/display/dc/core/dc_resource.c |  28 ++-
 drivers/gpu/drm/drm_atomic.c                  |   1 +
 drivers/gpu/drm/drm_connector.c               | 189 +++++++++++-------
 .../gpu/drm/i915/display/intel_connector.c    |   4 +-
 drivers/gpu/drm/vc4/vc4_hdmi.c                |   2 +-
 include/drm/display/drm_dp.h                  |   2 +-
 include/drm/drm_connector.h                   | 129 +++++++++---
 9 files changed, 363 insertions(+), 133 deletions(-)

--
2.41.0

[PATCH v6 01/13] drm/connector: Convert DRM_MODE_COLORIMETRY to enum

[Harry Wentland]

This allows us to use strongly typed arguments.

v2:
 - Bring NO_DATA back
 - Provide explicit enum values

v3:
- Drop unnecessary '&' from kerneldoc (emersion)

v4:
- Fix Normal Colorimetry comment

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 include/drm/display/drm_dp.h |  2 +-
 include/drm/drm_connector.h  | 49 ++++++++++++++++++------------------
 2 files changed, 26 insertions(+), 25 deletions(-)

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index f1be179c5f1f..7f858352cb43 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -1626,7 +1626,7 @@ enum dp_pixelformat {
  *
  * This enum is used to indicate DP VSC SDP Colorimetry formats.
  * It is based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
- * DB18] and a name of enum member follows DRM_MODE_COLORIMETRY definition.
+ * DB18] and a name of enum member follows enum drm_colorimetry definition.
  *
  * @DP_COLORIMETRY_DEFAULT: sRGB (IEC 61966-2-1) or
  *                          ITU-R BT.601 colorimetry format
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 565cf9d3c550..77401e425341 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -371,29 +371,30 @@ enum drm_privacy_screen_status {
  * a colorspace property which will be created and exposed to
  * userspace.
  */
-
-/* For Default case, driver will set the colorspace */
-#define DRM_MODE_COLORIMETRY_DEFAULT			0
-/* CEA 861 Normal Colorimetry options */
-#define DRM_MODE_COLORIMETRY_NO_DATA			0
-#define DRM_MODE_COLORIMETRY_SMPTE_170M_YCC		1
-#define DRM_MODE_COLORIMETRY_BT709_YCC			2
-/* CEA 861 Extended Colorimetry Options */
-#define DRM_MODE_COLORIMETRY_XVYCC_601			3
-#define DRM_MODE_COLORIMETRY_XVYCC_709			4
-#define DRM_MODE_COLORIMETRY_SYCC_601			5
-#define DRM_MODE_COLORIMETRY_OPYCC_601			6
-#define DRM_MODE_COLORIMETRY_OPRGB			7
-#define DRM_MODE_COLORIMETRY_BT2020_CYCC		8
-#define DRM_MODE_COLORIMETRY_BT2020_RGB			9
-#define DRM_MODE_COLORIMETRY_BT2020_YCC			10
-/* Additional Colorimetry extension added as part of CTA 861.G */
-#define DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65		11
-#define DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER		12
-/* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
-#define DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED		13
-#define DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT		14
-#define DRM_MODE_COLORIMETRY_BT601_YCC			15
+enum drm_colorspace {
+	/* For Default case, driver will set the colorspace */
+	DRM_MODE_COLORIMETRY_DEFAULT 		= 0,
+	/* CEA 861 Normal Colorimetry options */
+	DRM_MODE_COLORIMETRY_NO_DATA		= 0,
+	DRM_MODE_COLORIMETRY_SMPTE_170M_YCC	= 1,
+	DRM_MODE_COLORIMETRY_BT709_YCC		= 2,
+	/* CEA 861 Extended Colorimetry Options */
+	DRM_MODE_COLORIMETRY_XVYCC_601		= 3,
+	DRM_MODE_COLORIMETRY_XVYCC_709		= 4,
+	DRM_MODE_COLORIMETRY_SYCC_601		= 5,
+	DRM_MODE_COLORIMETRY_OPYCC_601		= 6,
+	DRM_MODE_COLORIMETRY_OPRGB		= 7,
+	DRM_MODE_COLORIMETRY_BT2020_CYCC	= 8,
+	DRM_MODE_COLORIMETRY_BT2020_RGB		= 9,
+	DRM_MODE_COLORIMETRY_BT2020_YCC		= 10,
+	/* Additional Colorimetry extension added as part of CTA 861.G */
+	DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65	= 11,
+	DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER	= 12,
+	/* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
+	DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED	= 13,
+	DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT	= 14,
+	DRM_MODE_COLORIMETRY_BT601_YCC		= 15,
+};
 
 /**
  * enum drm_bus_flags - bus_flags info for &drm_display_info
@@ -828,7 +829,7 @@ struct drm_connector_state {
 	 * colorspace change on Sink. This is most commonly used to switch
 	 * to wider color gamuts like BT2020.
 	 */
-	u32 colorspace;
+	enum drm_colorspace colorspace;
 
 	/**
 	 * @writeback_job: Writeback job for writeback connectors
-- 
2.41.0

[PATCH v6 01/13] drm/connector: Convert DRM_MODE_COLORIMETRY to enum

[Harry Wentland]

This allows us to use strongly typed arguments.

v2:
 - Bring NO_DATA back
 - Provide explicit enum values

v3:
- Drop unnecessary '&' from kerneldoc (emersion)

v4:
- Fix Normal Colorimetry comment

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 include/drm/display/drm_dp.h |  2 +-
 include/drm/drm_connector.h  | 49 ++++++++++++++++++------------------
 2 files changed, 26 insertions(+), 25 deletions(-)

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index f1be179c5f1f..7f858352cb43 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -1626,7 +1626,7 @@ enum dp_pixelformat {
  *
  * This enum is used to indicate DP VSC SDP Colorimetry formats.
  * It is based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
- * DB18] and a name of enum member follows DRM_MODE_COLORIMETRY definition.
+ * DB18] and a name of enum member follows enum drm_colorimetry definition.
  *
  * @DP_COLORIMETRY_DEFAULT: sRGB (IEC 61966-2-1) or
  *                          ITU-R BT.601 colorimetry format
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 565cf9d3c550..77401e425341 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -371,29 +371,30 @@ enum drm_privacy_screen_status {
  * a colorspace property which will be created and exposed to
  * userspace.
  */
-
-/* For Default case, driver will set the colorspace */
-#define DRM_MODE_COLORIMETRY_DEFAULT			0
-/* CEA 861 Normal Colorimetry options */
-#define DRM_MODE_COLORIMETRY_NO_DATA			0
-#define DRM_MODE_COLORIMETRY_SMPTE_170M_YCC		1
-#define DRM_MODE_COLORIMETRY_BT709_YCC			2
-/* CEA 861 Extended Colorimetry Options */
-#define DRM_MODE_COLORIMETRY_XVYCC_601			3
-#define DRM_MODE_COLORIMETRY_XVYCC_709			4
-#define DRM_MODE_COLORIMETRY_SYCC_601			5
-#define DRM_MODE_COLORIMETRY_OPYCC_601			6
-#define DRM_MODE_COLORIMETRY_OPRGB			7
-#define DRM_MODE_COLORIMETRY_BT2020_CYCC		8
-#define DRM_MODE_COLORIMETRY_BT2020_RGB			9
-#define DRM_MODE_COLORIMETRY_BT2020_YCC			10
-/* Additional Colorimetry extension added as part of CTA 861.G */
-#define DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65		11
-#define DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER		12
-/* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
-#define DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED		13
-#define DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT		14
-#define DRM_MODE_COLORIMETRY_BT601_YCC			15
+enum drm_colorspace {
+	/* For Default case, driver will set the colorspace */
+	DRM_MODE_COLORIMETRY_DEFAULT 		= 0,
+	/* CEA 861 Normal Colorimetry options */
+	DRM_MODE_COLORIMETRY_NO_DATA		= 0,
+	DRM_MODE_COLORIMETRY_SMPTE_170M_YCC	= 1,
+	DRM_MODE_COLORIMETRY_BT709_YCC		= 2,
+	/* CEA 861 Extended Colorimetry Options */
+	DRM_MODE_COLORIMETRY_XVYCC_601		= 3,
+	DRM_MODE_COLORIMETRY_XVYCC_709		= 4,
+	DRM_MODE_COLORIMETRY_SYCC_601		= 5,
+	DRM_MODE_COLORIMETRY_OPYCC_601		= 6,
+	DRM_MODE_COLORIMETRY_OPRGB		= 7,
+	DRM_MODE_COLORIMETRY_BT2020_CYCC	= 8,
+	DRM_MODE_COLORIMETRY_BT2020_RGB		= 9,
+	DRM_MODE_COLORIMETRY_BT2020_YCC		= 10,
+	/* Additional Colorimetry extension added as part of CTA 861.G */
+	DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65	= 11,
+	DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER	= 12,
+	/* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */
+	DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED	= 13,
+	DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT	= 14,
+	DRM_MODE_COLORIMETRY_BT601_YCC		= 15,
+};
 
 /**
  * enum drm_bus_flags - bus_flags info for &drm_display_info
@@ -828,7 +829,7 @@ struct drm_connector_state {
 	 * colorspace change on Sink. This is most commonly used to switch
 	 * to wider color gamuts like BT2020.
 	 */
-	u32 colorspace;
+	enum drm_colorspace colorspace;
 
 	/**
 	 * @writeback_job: Writeback job for writeback connectors
-- 
2.41.0

[PATCH v6 02/13] drm/connector: Add enum documentation to drm_colorspace

[Harry Wentland]

From: Joshua Ashton <joshua@froggi.es>

To match the other enums, and add more information about these values.

v2:
 - Specify where an enum entry comes from
 - Clarify DEFAULT and NO_DATA behavior
 - BT.2020 CYCC is "constant luminance"
 - correct type for BT.601

v4:
- drop DP/HDMI clarifications that might create
  more questions than answers

v5:
- Add note on YCC and RGB variants

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 include/drm/drm_connector.h | 70 +++++++++++++++++++++++++++++++++++--
 1 file changed, 68 insertions(+), 2 deletions(-)

diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 77401e425341..907f40851e80 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -363,13 +363,79 @@ enum drm_privacy_screen_status {
 	PRIVACY_SCREEN_ENABLED_LOCKED,
 };
 
-/*
- * This is a consolidated colorimetry list supported by HDMI and
+/**
+ * enum drm_colorspace - color space
+ *
+ * This enum is a consolidated colorimetry list supported by HDMI and
  * DP protocol standard. The respective connectors will register
  * a property with the subset of this list (supported by that
  * respective protocol). Userspace will set the colorspace through
  * a colorspace property which will be created and exposed to
  * userspace.
+ *
+ * DP definitions come from the DP v2.0 spec
+ * HDMI definitions come from the CTA-861-H spec
+ *
+ * A note on YCC and RGB variants:
+ *
+ * Since userspace is not aware of the encoding on the wire
+ * (RGB or YCbCr), drivers are free to pick the appropriate
+ * variant, regardless of what userspace selects. E.g., if
+ * BT2020_RGB is selected by userspace a driver will pick
+ * BT2020_YCC if the encoding on the wire is YUV444 or YUV420.
+  *
+ * @DRM_MODE_COLORIMETRY_DEFAULT:
+ *   Driver specific behavior.
+ * @DRM_MODE_COLORIMETRY_NO_DATA:
+ *   Driver specific behavior.
+ * @DRM_MODE_COLORIMETRY_SMPTE_170M_YCC:
+ *   (HDMI)
+ *   SMPTE ST 170M colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT709_YCC:
+ *   (HDMI, DP)
+ *   ITU-R BT.709 colorimetry format
+ * @DRM_MODE_COLORIMETRY_XVYCC_601:
+ *   (HDMI, DP)
+ *   xvYCC601 colorimetry format
+ * @DRM_MODE_COLORIMETRY_XVYCC_709:
+ *   (HDMI, DP)
+ *   xvYCC709 colorimetry format
+ * @DRM_MODE_COLORIMETRY_SYCC_601:
+ *   (HDMI, DP)
+ *   sYCC601 colorimetry format
+ * @DRM_MODE_COLORIMETRY_OPYCC_601:
+ *   (HDMI, DP)
+ *   opYCC601 colorimetry format
+ * @DRM_MODE_COLORIMETRY_OPRGB:
+ *   (HDMI, DP)
+ *   opRGB colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT2020_CYCC:
+ *   (HDMI, DP)
+ *   ITU-R BT.2020 Y'c C'bc C'rc (constant luminance) colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT2020_RGB:
+ *   (HDMI, DP)
+ *   ITU-R BT.2020 R' G' B' colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT2020_YCC:
+ *   (HDMI, DP)
+ *   ITU-R BT.2020 Y' C'b C'r colorimetry format
+ * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65:
+ *   (HDMI)
+ *   SMPTE ST 2113 P3D65 colorimetry format
+ * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER:
+ *   (HDMI)
+ *   SMPTE ST 2113 P3DCI colorimetry format
+ * @DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED:
+ *   (DP)
+ *   RGB wide gamut fixed point colorimetry format
+ * @DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT:
+ *   (DP)
+ *   RGB wide gamut floating point
+ *   (scRGB (IEC 61966-2-2)) colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT601_YCC:
+ *   (DP)
+ *   ITU-R BT.601 colorimetry format
+ *   The DP spec does not say whether this is the 525 or the 625
+ *   line version.
  */
 enum drm_colorspace {
 	/* For Default case, driver will set the colorspace */
-- 
2.41.0

[PATCH v6 02/13] drm/connector: Add enum documentation to drm_colorspace

[Harry Wentland]

From: Joshua Ashton <joshua@froggi.es>

To match the other enums, and add more information about these values.

v2:
 - Specify where an enum entry comes from
 - Clarify DEFAULT and NO_DATA behavior
 - BT.2020 CYCC is "constant luminance"
 - correct type for BT.601

v4:
- drop DP/HDMI clarifications that might create
  more questions than answers

v5:
- Add note on YCC and RGB variants

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 include/drm/drm_connector.h | 70 +++++++++++++++++++++++++++++++++++--
 1 file changed, 68 insertions(+), 2 deletions(-)

diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 77401e425341..907f40851e80 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -363,13 +363,79 @@ enum drm_privacy_screen_status {
 	PRIVACY_SCREEN_ENABLED_LOCKED,
 };
 
-/*
- * This is a consolidated colorimetry list supported by HDMI and
+/**
+ * enum drm_colorspace - color space
+ *
+ * This enum is a consolidated colorimetry list supported by HDMI and
  * DP protocol standard. The respective connectors will register
  * a property with the subset of this list (supported by that
  * respective protocol). Userspace will set the colorspace through
  * a colorspace property which will be created and exposed to
  * userspace.
+ *
+ * DP definitions come from the DP v2.0 spec
+ * HDMI definitions come from the CTA-861-H spec
+ *
+ * A note on YCC and RGB variants:
+ *
+ * Since userspace is not aware of the encoding on the wire
+ * (RGB or YCbCr), drivers are free to pick the appropriate
+ * variant, regardless of what userspace selects. E.g., if
+ * BT2020_RGB is selected by userspace a driver will pick
+ * BT2020_YCC if the encoding on the wire is YUV444 or YUV420.
+  *
+ * @DRM_MODE_COLORIMETRY_DEFAULT:
+ *   Driver specific behavior.
+ * @DRM_MODE_COLORIMETRY_NO_DATA:
+ *   Driver specific behavior.
+ * @DRM_MODE_COLORIMETRY_SMPTE_170M_YCC:
+ *   (HDMI)
+ *   SMPTE ST 170M colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT709_YCC:
+ *   (HDMI, DP)
+ *   ITU-R BT.709 colorimetry format
+ * @DRM_MODE_COLORIMETRY_XVYCC_601:
+ *   (HDMI, DP)
+ *   xvYCC601 colorimetry format
+ * @DRM_MODE_COLORIMETRY_XVYCC_709:
+ *   (HDMI, DP)
+ *   xvYCC709 colorimetry format
+ * @DRM_MODE_COLORIMETRY_SYCC_601:
+ *   (HDMI, DP)
+ *   sYCC601 colorimetry format
+ * @DRM_MODE_COLORIMETRY_OPYCC_601:
+ *   (HDMI, DP)
+ *   opYCC601 colorimetry format
+ * @DRM_MODE_COLORIMETRY_OPRGB:
+ *   (HDMI, DP)
+ *   opRGB colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT2020_CYCC:
+ *   (HDMI, DP)
+ *   ITU-R BT.2020 Y'c C'bc C'rc (constant luminance) colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT2020_RGB:
+ *   (HDMI, DP)
+ *   ITU-R BT.2020 R' G' B' colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT2020_YCC:
+ *   (HDMI, DP)
+ *   ITU-R BT.2020 Y' C'b C'r colorimetry format
+ * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65:
+ *   (HDMI)
+ *   SMPTE ST 2113 P3D65 colorimetry format
+ * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER:
+ *   (HDMI)
+ *   SMPTE ST 2113 P3DCI colorimetry format
+ * @DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED:
+ *   (DP)
+ *   RGB wide gamut fixed point colorimetry format
+ * @DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT:
+ *   (DP)
+ *   RGB wide gamut floating point
+ *   (scRGB (IEC 61966-2-2)) colorimetry format
+ * @DRM_MODE_COLORIMETRY_BT601_YCC:
+ *   (DP)
+ *   ITU-R BT.601 colorimetry format
+ *   The DP spec does not say whether this is the 525 or the 625
+ *   line version.
  */
 enum drm_colorspace {
 	/* For Default case, driver will set the colorspace */
-- 
2.41.0

[PATCH v6 03/13] drm/connector: Pull out common create_colorspace_property code

[Harry Wentland]

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/drm_connector.c | 54 ++++++++++++++++-----------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 547356e00341..9c087d6f5691 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1975,33 +1975,44 @@ EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
  * drm_mode_create_dp_colorspace_property() is used for DP connector.
  */
 
-/**
- * drm_mode_create_hdmi_colorspace_property - create hdmi colorspace property
- * @connector: connector to create the Colorspace property on.
- *
- * Called by a driver the first time it's needed, must be attached to desired
- * HDMI connectors.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector)
+static int drm_mode_create_colorspace_property(struct drm_connector *connector,
+					const struct drm_prop_enum_list *colorspaces,
+					int size)
 {
 	struct drm_device *dev = connector->dev;
 
 	if (connector->colorspace_property)
 		return 0;
 
+	if (!colorspaces)
+		return 0;
+
 	connector->colorspace_property =
 		drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace",
-					 hdmi_colorspaces,
-					 ARRAY_SIZE(hdmi_colorspaces));
+					colorspaces,
+					size);
 
 	if (!connector->colorspace_property)
 		return -ENOMEM;
 
 	return 0;
 }
+/**
+ * drm_mode_create_hdmi_colorspace_property - create hdmi colorspace property
+ * @connector: connector to create the Colorspace property on.
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * HDMI connectors.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector)
+{
+	return drm_mode_create_colorspace_property(connector,
+						   hdmi_colorspaces,
+						   ARRAY_SIZE(hdmi_colorspaces));
+}
 EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
 
 /**
@@ -2016,20 +2027,9 @@ EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
  */
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector)
 {
-	struct drm_device *dev = connector->dev;
-
-	if (connector->colorspace_property)
-		return 0;
-
-	connector->colorspace_property =
-		drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace",
-					 dp_colorspaces,
-					 ARRAY_SIZE(dp_colorspaces));
-
-	if (!connector->colorspace_property)
-		return -ENOMEM;
-
-	return 0;
+	return drm_mode_create_colorspace_property(connector,
+						   dp_colorspaces,
+						   ARRAY_SIZE(dp_colorspaces));
 }
 EXPORT_SYMBOL(drm_mode_create_dp_colorspace_property);
 
-- 
2.41.0

[PATCH v6 03/13] drm/connector: Pull out common create_colorspace_property code

[Harry Wentland]

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/drm_connector.c | 54 ++++++++++++++++-----------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 547356e00341..9c087d6f5691 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1975,33 +1975,44 @@ EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
  * drm_mode_create_dp_colorspace_property() is used for DP connector.
  */
 
-/**
- * drm_mode_create_hdmi_colorspace_property - create hdmi colorspace property
- * @connector: connector to create the Colorspace property on.
- *
- * Called by a driver the first time it's needed, must be attached to desired
- * HDMI connectors.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector)
+static int drm_mode_create_colorspace_property(struct drm_connector *connector,
+					const struct drm_prop_enum_list *colorspaces,
+					int size)
 {
 	struct drm_device *dev = connector->dev;
 
 	if (connector->colorspace_property)
 		return 0;
 
+	if (!colorspaces)
+		return 0;
+
 	connector->colorspace_property =
 		drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace",
-					 hdmi_colorspaces,
-					 ARRAY_SIZE(hdmi_colorspaces));
+					colorspaces,
+					size);
 
 	if (!connector->colorspace_property)
 		return -ENOMEM;
 
 	return 0;
 }
+/**
+ * drm_mode_create_hdmi_colorspace_property - create hdmi colorspace property
+ * @connector: connector to create the Colorspace property on.
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * HDMI connectors.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector)
+{
+	return drm_mode_create_colorspace_property(connector,
+						   hdmi_colorspaces,
+						   ARRAY_SIZE(hdmi_colorspaces));
+}
 EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
 
 /**
@@ -2016,20 +2027,9 @@ EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
  */
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector)
 {
-	struct drm_device *dev = connector->dev;
-
-	if (connector->colorspace_property)
-		return 0;
-
-	connector->colorspace_property =
-		drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace",
-					 dp_colorspaces,
-					 ARRAY_SIZE(dp_colorspaces));
-
-	if (!connector->colorspace_property)
-		return -ENOMEM;
-
-	return 0;
+	return drm_mode_create_colorspace_property(connector,
+						   dp_colorspaces,
+						   ARRAY_SIZE(dp_colorspaces));
 }
 EXPORT_SYMBOL(drm_mode_create_dp_colorspace_property);
 
-- 
2.41.0

[PATCH v6 04/13] drm/connector: Use common colorspace_names array

[Harry Wentland]

We an use bitfields to track the support ones for HDMI
and DP. This allows us to print colorspaces in a consistent
manner without needing to know whether we're dealing with
DP or HDMI.

v4:
- Rename _MAX to _COUNT and leave comment to indicate
  it's not a valid value
- Fix misplaced function doc

v6:
- Drop magic in drm_mode_create_colorspace_property for
  dealing with "0" supported_colorspaces. Expect the caller
  to always provide a non-zero supported_colorspaces.
- Improve error checking and logging

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/drm_connector.c | 130 +++++++++++++++++++-------------
 include/drm/drm_connector.h     |   2 +
 2 files changed, 79 insertions(+), 53 deletions(-)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 9c087d6f5691..484effc731df 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1016,64 +1016,70 @@ static const struct drm_prop_enum_list drm_dp_subconnector_enum_list[] = {
 DRM_ENUM_NAME_FN(drm_get_dp_subconnector_name,
 		 drm_dp_subconnector_enum_list)
 
-static const struct drm_prop_enum_list hdmi_colorspaces[] = {
+
+static const char * const colorspace_names[] = {
 	/* For Default case, driver will set the colorspace */
-	{ DRM_MODE_COLORIMETRY_DEFAULT, "Default" },
+	[DRM_MODE_COLORIMETRY_DEFAULT] = "Default",
 	/* Standard Definition Colorimetry based on CEA 861 */
-	{ DRM_MODE_COLORIMETRY_SMPTE_170M_YCC, "SMPTE_170M_YCC" },
-	{ DRM_MODE_COLORIMETRY_BT709_YCC, "BT709_YCC" },
+	[DRM_MODE_COLORIMETRY_SMPTE_170M_YCC] = "SMPTE_170M_YCC",
+	[DRM_MODE_COLORIMETRY_BT709_YCC] = "BT709_YCC",
 	/* Standard Definition Colorimetry based on IEC 61966-2-4 */
-	{ DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" },
+	[DRM_MODE_COLORIMETRY_XVYCC_601] = "XVYCC_601",
 	/* High Definition Colorimetry based on IEC 61966-2-4 */
-	{ DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" },
+	[DRM_MODE_COLORIMETRY_XVYCC_709] = "XVYCC_709",
 	/* Colorimetry based on IEC 61966-2-1/Amendment 1 */
-	{ DRM_MODE_COLORIMETRY_SYCC_601, "SYCC_601" },
+	[DRM_MODE_COLORIMETRY_SYCC_601] = "SYCC_601",
 	/* Colorimetry based on IEC 61966-2-5 [33] */
-	{ DRM_MODE_COLORIMETRY_OPYCC_601, "opYCC_601" },
+	[DRM_MODE_COLORIMETRY_OPYCC_601] = "opYCC_601",
 	/* Colorimetry based on IEC 61966-2-5 */
-	{ DRM_MODE_COLORIMETRY_OPRGB, "opRGB" },
+	[DRM_MODE_COLORIMETRY_OPRGB] = "opRGB",
 	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" },
+	[DRM_MODE_COLORIMETRY_BT2020_CYCC] = "BT2020_CYCC",
 	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" },
+	[DRM_MODE_COLORIMETRY_BT2020_RGB] = "BT2020_RGB",
 	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" },
+	[DRM_MODE_COLORIMETRY_BT2020_YCC] = "BT2020_YCC",
 	/* Added as part of Additional Colorimetry Extension in 861.G */
-	{ DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" },
-	{ DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER, "DCI-P3_RGB_Theater" },
+	[DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65] = "DCI-P3_RGB_D65",
+	[DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER] = "DCI-P3_RGB_Theater",
+	[DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED] = "RGB_WIDE_FIXED",
+	/* Colorimetry based on scRGB (IEC 61966-2-2) */
+	[DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT] = "RGB_WIDE_FLOAT",
+	[DRM_MODE_COLORIMETRY_BT601_YCC] = "BT601_YCC",
 };
 
+static const u32 hdmi_colorspaces =
+	BIT(DRM_MODE_COLORIMETRY_SMPTE_170M_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_XVYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_XVYCC_709) |
+	BIT(DRM_MODE_COLORIMETRY_SYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_OPYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_OPRGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_CYCC) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65) |
+	BIT(DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER);
+
 /*
  * As per DP 1.4a spec, 2.2.5.7.5 VSC SDP Payload for Pixel Encoding/Colorimetry
  * Format Table 2-120
  */
-static const struct drm_prop_enum_list dp_colorspaces[] = {
-	/* For Default case, driver will set the colorspace */
-	{ DRM_MODE_COLORIMETRY_DEFAULT, "Default" },
-	{ DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED, "RGB_Wide_Gamut_Fixed_Point" },
-	/* Colorimetry based on scRGB (IEC 61966-2-2) */
-	{ DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT, "RGB_Wide_Gamut_Floating_Point" },
-	/* Colorimetry based on IEC 61966-2-5 */
-	{ DRM_MODE_COLORIMETRY_OPRGB, "opRGB" },
-	/* Colorimetry based on SMPTE RP 431-2 */
-	{ DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" },
-	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" },
-	{ DRM_MODE_COLORIMETRY_BT601_YCC, "BT601_YCC" },
-	{ DRM_MODE_COLORIMETRY_BT709_YCC, "BT709_YCC" },
-	/* Standard Definition Colorimetry based on IEC 61966-2-4 */
-	{ DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" },
-	/* High Definition Colorimetry based on IEC 61966-2-4 */
-	{ DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" },
-	/* Colorimetry based on IEC 61966-2-1/Amendment 1 */
-	{ DRM_MODE_COLORIMETRY_SYCC_601, "SYCC_601" },
-	/* Colorimetry based on IEC 61966-2-5 [33] */
-	{ DRM_MODE_COLORIMETRY_OPYCC_601, "opYCC_601" },
-	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" },
-	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" },
-};
+static const u32 dp_colorspaces =
+	BIT(DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED) |
+	BIT(DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT) |
+	BIT(DRM_MODE_COLORIMETRY_OPRGB) |
+	BIT(DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT601_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_XVYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_XVYCC_709) |
+	BIT(DRM_MODE_COLORIMETRY_SYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_OPYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_CYCC) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_YCC);
 
 /**
  * DOC: standard connector properties
@@ -1976,27 +1982,49 @@ EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
  */
 
 static int drm_mode_create_colorspace_property(struct drm_connector *connector,
-					const struct drm_prop_enum_list *colorspaces,
-					int size)
+					u32 supported_colorspaces)
 {
 	struct drm_device *dev = connector->dev;
+	u32 colorspaces = supported_colorspaces | BIT(DRM_MODE_COLORIMETRY_DEFAULT);
+	struct drm_prop_enum_list enum_list[DRM_MODE_COLORIMETRY_COUNT];
+	int i, len;
 
 	if (connector->colorspace_property)
 		return 0;
 
-	if (!colorspaces)
-		return 0;
+	if (!supported_colorspaces) {
+		drm_err(dev, "No supported colorspaces provded on [CONNECTOR:%d:%s]\n",
+			    connector->base.id, connector->name);
+		return -EINVAL;
+	}
+
+	if ((supported_colorspaces & -BIT(DRM_MODE_COLORIMETRY_COUNT)) != 0) {
+		drm_err(dev, "Unknown colorspace provded on [CONNECTOR:%d:%s]\n",
+			    connector->base.id, connector->name);
+		return -EINVAL;
+	}
+
+	len = 0;
+	for (i = 0; i < DRM_MODE_COLORIMETRY_COUNT; i++) {
+		if ((colorspaces & BIT(i)) == 0)
+			continue;
+
+		enum_list[len].type = i;
+		enum_list[len].name = colorspace_names[i];
+		len++;
+	}
 
 	connector->colorspace_property =
 		drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace",
-					colorspaces,
-					size);
+					enum_list,
+					len);
 
 	if (!connector->colorspace_property)
 		return -ENOMEM;
 
 	return 0;
 }
+
 /**
  * drm_mode_create_hdmi_colorspace_property - create hdmi colorspace property
  * @connector: connector to create the Colorspace property on.
@@ -2009,9 +2037,7 @@ static int drm_mode_create_colorspace_property(struct drm_connector *connector,
  */
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector)
 {
-	return drm_mode_create_colorspace_property(connector,
-						   hdmi_colorspaces,
-						   ARRAY_SIZE(hdmi_colorspaces));
+	return drm_mode_create_colorspace_property(connector, hdmi_colorspaces);
 }
 EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
 
@@ -2027,9 +2053,7 @@ EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
  */
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector)
 {
-	return drm_mode_create_colorspace_property(connector,
-						   dp_colorspaces,
-						   ARRAY_SIZE(dp_colorspaces));
+	return drm_mode_create_colorspace_property(connector, dp_colorspaces);
 }
 EXPORT_SYMBOL(drm_mode_create_dp_colorspace_property);
 
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 907f40851e80..fad38cdf4f79 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -460,6 +460,8 @@ enum drm_colorspace {
 	DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED	= 13,
 	DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT	= 14,
 	DRM_MODE_COLORIMETRY_BT601_YCC		= 15,
+	/* not a valid value; merely used for counting */
+	DRM_MODE_COLORIMETRY_COUNT
 };
 
 /**
-- 
2.41.0

[PATCH v6 04/13] drm/connector: Use common colorspace_names array

[Harry Wentland]

We an use bitfields to track the support ones for HDMI
and DP. This allows us to print colorspaces in a consistent
manner without needing to know whether we're dealing with
DP or HDMI.

v4:
- Rename _MAX to _COUNT and leave comment to indicate
  it's not a valid value
- Fix misplaced function doc

v6:
- Drop magic in drm_mode_create_colorspace_property for
  dealing with "0" supported_colorspaces. Expect the caller
  to always provide a non-zero supported_colorspaces.
- Improve error checking and logging

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/drm_connector.c | 130 +++++++++++++++++++-------------
 include/drm/drm_connector.h     |   2 +
 2 files changed, 79 insertions(+), 53 deletions(-)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 9c087d6f5691..484effc731df 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1016,64 +1016,70 @@ static const struct drm_prop_enum_list drm_dp_subconnector_enum_list[] = {
 DRM_ENUM_NAME_FN(drm_get_dp_subconnector_name,
 		 drm_dp_subconnector_enum_list)
 
-static const struct drm_prop_enum_list hdmi_colorspaces[] = {
+
+static const char * const colorspace_names[] = {
 	/* For Default case, driver will set the colorspace */
-	{ DRM_MODE_COLORIMETRY_DEFAULT, "Default" },
+	[DRM_MODE_COLORIMETRY_DEFAULT] = "Default",
 	/* Standard Definition Colorimetry based on CEA 861 */
-	{ DRM_MODE_COLORIMETRY_SMPTE_170M_YCC, "SMPTE_170M_YCC" },
-	{ DRM_MODE_COLORIMETRY_BT709_YCC, "BT709_YCC" },
+	[DRM_MODE_COLORIMETRY_SMPTE_170M_YCC] = "SMPTE_170M_YCC",
+	[DRM_MODE_COLORIMETRY_BT709_YCC] = "BT709_YCC",
 	/* Standard Definition Colorimetry based on IEC 61966-2-4 */
-	{ DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" },
+	[DRM_MODE_COLORIMETRY_XVYCC_601] = "XVYCC_601",
 	/* High Definition Colorimetry based on IEC 61966-2-4 */
-	{ DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" },
+	[DRM_MODE_COLORIMETRY_XVYCC_709] = "XVYCC_709",
 	/* Colorimetry based on IEC 61966-2-1/Amendment 1 */
-	{ DRM_MODE_COLORIMETRY_SYCC_601, "SYCC_601" },
+	[DRM_MODE_COLORIMETRY_SYCC_601] = "SYCC_601",
 	/* Colorimetry based on IEC 61966-2-5 [33] */
-	{ DRM_MODE_COLORIMETRY_OPYCC_601, "opYCC_601" },
+	[DRM_MODE_COLORIMETRY_OPYCC_601] = "opYCC_601",
 	/* Colorimetry based on IEC 61966-2-5 */
-	{ DRM_MODE_COLORIMETRY_OPRGB, "opRGB" },
+	[DRM_MODE_COLORIMETRY_OPRGB] = "opRGB",
 	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" },
+	[DRM_MODE_COLORIMETRY_BT2020_CYCC] = "BT2020_CYCC",
 	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" },
+	[DRM_MODE_COLORIMETRY_BT2020_RGB] = "BT2020_RGB",
 	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" },
+	[DRM_MODE_COLORIMETRY_BT2020_YCC] = "BT2020_YCC",
 	/* Added as part of Additional Colorimetry Extension in 861.G */
-	{ DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" },
-	{ DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER, "DCI-P3_RGB_Theater" },
+	[DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65] = "DCI-P3_RGB_D65",
+	[DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER] = "DCI-P3_RGB_Theater",
+	[DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED] = "RGB_WIDE_FIXED",
+	/* Colorimetry based on scRGB (IEC 61966-2-2) */
+	[DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT] = "RGB_WIDE_FLOAT",
+	[DRM_MODE_COLORIMETRY_BT601_YCC] = "BT601_YCC",
 };
 
+static const u32 hdmi_colorspaces =
+	BIT(DRM_MODE_COLORIMETRY_SMPTE_170M_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_XVYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_XVYCC_709) |
+	BIT(DRM_MODE_COLORIMETRY_SYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_OPYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_OPRGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_CYCC) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65) |
+	BIT(DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER);
+
 /*
  * As per DP 1.4a spec, 2.2.5.7.5 VSC SDP Payload for Pixel Encoding/Colorimetry
  * Format Table 2-120
  */
-static const struct drm_prop_enum_list dp_colorspaces[] = {
-	/* For Default case, driver will set the colorspace */
-	{ DRM_MODE_COLORIMETRY_DEFAULT, "Default" },
-	{ DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED, "RGB_Wide_Gamut_Fixed_Point" },
-	/* Colorimetry based on scRGB (IEC 61966-2-2) */
-	{ DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT, "RGB_Wide_Gamut_Floating_Point" },
-	/* Colorimetry based on IEC 61966-2-5 */
-	{ DRM_MODE_COLORIMETRY_OPRGB, "opRGB" },
-	/* Colorimetry based on SMPTE RP 431-2 */
-	{ DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65, "DCI-P3_RGB_D65" },
-	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_RGB, "BT2020_RGB" },
-	{ DRM_MODE_COLORIMETRY_BT601_YCC, "BT601_YCC" },
-	{ DRM_MODE_COLORIMETRY_BT709_YCC, "BT709_YCC" },
-	/* Standard Definition Colorimetry based on IEC 61966-2-4 */
-	{ DRM_MODE_COLORIMETRY_XVYCC_601, "XVYCC_601" },
-	/* High Definition Colorimetry based on IEC 61966-2-4 */
-	{ DRM_MODE_COLORIMETRY_XVYCC_709, "XVYCC_709" },
-	/* Colorimetry based on IEC 61966-2-1/Amendment 1 */
-	{ DRM_MODE_COLORIMETRY_SYCC_601, "SYCC_601" },
-	/* Colorimetry based on IEC 61966-2-5 [33] */
-	{ DRM_MODE_COLORIMETRY_OPYCC_601, "opYCC_601" },
-	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_CYCC, "BT2020_CYCC" },
-	/* Colorimetry based on ITU-R BT.2020 */
-	{ DRM_MODE_COLORIMETRY_BT2020_YCC, "BT2020_YCC" },
-};
+static const u32 dp_colorspaces =
+	BIT(DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED) |
+	BIT(DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT) |
+	BIT(DRM_MODE_COLORIMETRY_OPRGB) |
+	BIT(DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT601_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_XVYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_XVYCC_709) |
+	BIT(DRM_MODE_COLORIMETRY_SYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_OPYCC_601) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_CYCC) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_YCC);
 
 /**
  * DOC: standard connector properties
@@ -1976,27 +1982,49 @@ EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
  */
 
 static int drm_mode_create_colorspace_property(struct drm_connector *connector,
-					const struct drm_prop_enum_list *colorspaces,
-					int size)
+					u32 supported_colorspaces)
 {
 	struct drm_device *dev = connector->dev;
+	u32 colorspaces = supported_colorspaces | BIT(DRM_MODE_COLORIMETRY_DEFAULT);
+	struct drm_prop_enum_list enum_list[DRM_MODE_COLORIMETRY_COUNT];
+	int i, len;
 
 	if (connector->colorspace_property)
 		return 0;
 
-	if (!colorspaces)
-		return 0;
+	if (!supported_colorspaces) {
+		drm_err(dev, "No supported colorspaces provded on [CONNECTOR:%d:%s]\n",
+			    connector->base.id, connector->name);
+		return -EINVAL;
+	}
+
+	if ((supported_colorspaces & -BIT(DRM_MODE_COLORIMETRY_COUNT)) != 0) {
+		drm_err(dev, "Unknown colorspace provded on [CONNECTOR:%d:%s]\n",
+			    connector->base.id, connector->name);
+		return -EINVAL;
+	}
+
+	len = 0;
+	for (i = 0; i < DRM_MODE_COLORIMETRY_COUNT; i++) {
+		if ((colorspaces & BIT(i)) == 0)
+			continue;
+
+		enum_list[len].type = i;
+		enum_list[len].name = colorspace_names[i];
+		len++;
+	}
 
 	connector->colorspace_property =
 		drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, "Colorspace",
-					colorspaces,
-					size);
+					enum_list,
+					len);
 
 	if (!connector->colorspace_property)
 		return -ENOMEM;
 
 	return 0;
 }
+
 /**
  * drm_mode_create_hdmi_colorspace_property - create hdmi colorspace property
  * @connector: connector to create the Colorspace property on.
@@ -2009,9 +2037,7 @@ static int drm_mode_create_colorspace_property(struct drm_connector *connector,
  */
 int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector)
 {
-	return drm_mode_create_colorspace_property(connector,
-						   hdmi_colorspaces,
-						   ARRAY_SIZE(hdmi_colorspaces));
+	return drm_mode_create_colorspace_property(connector, hdmi_colorspaces);
 }
 EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
 
@@ -2027,9 +2053,7 @@ EXPORT_SYMBOL(drm_mode_create_hdmi_colorspace_property);
  */
 int drm_mode_create_dp_colorspace_property(struct drm_connector *connector)
 {
-	return drm_mode_create_colorspace_property(connector,
-						   dp_colorspaces,
-						   ARRAY_SIZE(dp_colorspaces));
+	return drm_mode_create_colorspace_property(connector, dp_colorspaces);
 }
 EXPORT_SYMBOL(drm_mode_create_dp_colorspace_property);
 
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 907f40851e80..fad38cdf4f79 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -460,6 +460,8 @@ enum drm_colorspace {
 	DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED	= 13,
 	DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT	= 14,
 	DRM_MODE_COLORIMETRY_BT601_YCC		= 15,
+	/* not a valid value; merely used for counting */
+	DRM_MODE_COLORIMETRY_COUNT
 };
 
 /**
-- 
2.41.0

[PATCH v6 05/13] drm/connector: Print connector colorspace in state debugfs

[Harry Wentland]

v3: Fix kerneldocs (kernel test robot)

v4: Avoid returning NULL from drm_get_colorspace_name

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/drm_atomic.c    |  1 +
 drivers/gpu/drm/drm_connector.c | 15 +++++++++++++++
 include/drm/drm_connector.h     |  1 +
 3 files changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index c0dc5858a723..d6d04c4ccfc0 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1071,6 +1071,7 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
 	drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)");
 	drm_printf(p, "\tself_refresh_aware=%d\n", state->self_refresh_aware);
 	drm_printf(p, "\tmax_requested_bpc=%d\n", state->max_requested_bpc);
+	drm_printf(p, "\tcolorspace=%s\n", drm_get_colorspace_name(state->colorspace));
 
 	if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
 		if (state->writeback_job && state->writeback_job->fb)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 484effc731df..46bf1f2ad535 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1048,6 +1048,21 @@ static const char * const colorspace_names[] = {
 	[DRM_MODE_COLORIMETRY_BT601_YCC] = "BT601_YCC",
 };
 
+/**
+ * drm_get_colorspace_name - return a string for color encoding
+ * @colorspace: color space to compute name of
+ *
+ * In contrast to the other drm_get_*_name functions this one here returns a
+ * const pointer and hence is threadsafe.
+ */
+const char *drm_get_colorspace_name(enum drm_colorspace colorspace)
+{
+	if (colorspace < ARRAY_SIZE(colorspace_names) && colorspace_names[colorspace])
+		return colorspace_names[colorspace];
+	else
+		return "(null)";
+}
+
 static const u32 hdmi_colorspaces =
 	BIT(DRM_MODE_COLORIMETRY_SMPTE_170M_YCC) |
 	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index fad38cdf4f79..9d9e4d6f0449 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1988,6 +1988,7 @@ void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
 
 bool drm_connector_has_possible_encoder(struct drm_connector *connector,
 					struct drm_encoder *encoder);
+const char *drm_get_colorspace_name(enum drm_colorspace colorspace);
 
 /**
  * drm_for_each_connector_iter - connector_list iterator macro
-- 
2.41.0

[PATCH v6 05/13] drm/connector: Print connector colorspace in state debugfs

[Harry Wentland]

v3: Fix kerneldocs (kernel test robot)

v4: Avoid returning NULL from drm_get_colorspace_name

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/drm_atomic.c    |  1 +
 drivers/gpu/drm/drm_connector.c | 15 +++++++++++++++
 include/drm/drm_connector.h     |  1 +
 3 files changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index c0dc5858a723..d6d04c4ccfc0 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1071,6 +1071,7 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
 	drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)");
 	drm_printf(p, "\tself_refresh_aware=%d\n", state->self_refresh_aware);
 	drm_printf(p, "\tmax_requested_bpc=%d\n", state->max_requested_bpc);
+	drm_printf(p, "\tcolorspace=%s\n", drm_get_colorspace_name(state->colorspace));
 
 	if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
 		if (state->writeback_job && state->writeback_job->fb)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 484effc731df..46bf1f2ad535 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1048,6 +1048,21 @@ static const char * const colorspace_names[] = {
 	[DRM_MODE_COLORIMETRY_BT601_YCC] = "BT601_YCC",
 };
 
+/**
+ * drm_get_colorspace_name - return a string for color encoding
+ * @colorspace: color space to compute name of
+ *
+ * In contrast to the other drm_get_*_name functions this one here returns a
+ * const pointer and hence is threadsafe.
+ */
+const char *drm_get_colorspace_name(enum drm_colorspace colorspace)
+{
+	if (colorspace < ARRAY_SIZE(colorspace_names) && colorspace_names[colorspace])
+		return colorspace_names[colorspace];
+	else
+		return "(null)";
+}
+
 static const u32 hdmi_colorspaces =
 	BIT(DRM_MODE_COLORIMETRY_SMPTE_170M_YCC) |
 	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index fad38cdf4f79..9d9e4d6f0449 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1988,6 +1988,7 @@ void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
 
 bool drm_connector_has_possible_encoder(struct drm_connector *connector,
 					struct drm_encoder *encoder);
+const char *drm_get_colorspace_name(enum drm_colorspace colorspace);
 
 /**
  * drm_for_each_connector_iter - connector_list iterator macro
-- 
2.41.0

[PATCH v6 06/13] drm/connector: Allow drivers to pass list of supported colorspaces

[Harry Wentland]

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 <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 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 46bf1f2ad535..8fe695047ced 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2050,9 +2050,17 @@ 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);
 
@@ -2066,9 +2074,17 @@ 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 6205ddd3ded0..e8b4a352a7a6 100644
--- a/drivers/gpu/drm/i915/display/intel_connector.c
+++ b/drivers/gpu/drm/i915/display/intel_connector.c
@@ -283,14 +283,14 @@ 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 55744216392b..eee53e841701 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -618,7 +618,7 @@ 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 9d9e4d6f0449..f799cbd755a3 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -30,6 +30,7 @@
 #include <linux/notifier.h>
 #include <drm/drm_mode_object.h>
 #include <drm/drm_util.h>
+#include <drm/drm_property.h>
 
 #include <uapi/drm/drm_mode.h>
 
@@ -1904,8 +1905,10 @@ 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);
 
-- 
2.41.0

[PATCH v6 06/13] drm/connector: Allow drivers to pass list of supported colorspaces

[Harry Wentland]

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 <harry.wentland@amd.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 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 46bf1f2ad535..8fe695047ced 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2050,9 +2050,17 @@ 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);
 
@@ -2066,9 +2074,17 @@ 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 6205ddd3ded0..e8b4a352a7a6 100644
--- a/drivers/gpu/drm/i915/display/intel_connector.c
+++ b/drivers/gpu/drm/i915/display/intel_connector.c
@@ -283,14 +283,14 @@ 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 55744216392b..eee53e841701 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -618,7 +618,7 @@ 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 9d9e4d6f0449..f799cbd755a3 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -30,6 +30,7 @@
 #include <linux/notifier.h>
 #include <drm/drm_mode_object.h>
 #include <drm/drm_util.h>
+#include <drm/drm_property.h>
 
 #include <uapi/drm/drm_mode.h>
 
@@ -1904,8 +1905,10 @@ 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);
 
-- 
2.41.0

[PATCH v6 07/13] drm/amd/display: Always pass connector_state to stream validation

[Harry Wentland]

We need the connector_state for colorspace and scaling information
and can get it from connector->state.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 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 90de0d37f1d2..27868dbb09f6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5954,15 +5954,14 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
 {
 	struct drm_display_mode *preferred_mode = NULL;
 	struct drm_connector *drm_connector;
-	const struct drm_connector_state *con_state =
-		dm_state ? &dm_state->base : NULL;
+	const struct drm_connector_state *con_state = &dm_state->base;
 	struct dc_stream_state *stream = NULL;
 	struct drm_display_mode mode;
 	struct drm_display_mode saved_mode;
 	struct drm_display_mode *freesync_mode = NULL;
 	bool native_mode_found = false;
 	bool recalculate_timing = false;
-	bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false;
+	bool scale = dm_state->scaling != RMX_OFF;
 	int mode_refresh;
 	int preferred_refresh = 0;
 	enum color_transfer_func tf = TRANSFER_FUNC_UNKNOWN;
@@ -6604,7 +6603,9 @@ enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connec
 		goto fail;
 	}
 
-	stream = create_validate_stream_for_sink(aconnector, mode, NULL, NULL);
+	stream = create_validate_stream_for_sink(aconnector, mode,
+						 to_dm_connector_state(connector->state),
+						 NULL);
 	if (stream) {
 		dc_stream_release(stream);
 		result = MODE_OK;
-- 
2.41.0

[PATCH v6 07/13] drm/amd/display: Always pass connector_state to stream validation

[Harry Wentland]

We need the connector_state for colorspace and scaling information
and can get it from connector->state.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 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 90de0d37f1d2..27868dbb09f6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5954,15 +5954,14 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
 {
 	struct drm_display_mode *preferred_mode = NULL;
 	struct drm_connector *drm_connector;
-	const struct drm_connector_state *con_state =
-		dm_state ? &dm_state->base : NULL;
+	const struct drm_connector_state *con_state = &dm_state->base;
 	struct dc_stream_state *stream = NULL;
 	struct drm_display_mode mode;
 	struct drm_display_mode saved_mode;
 	struct drm_display_mode *freesync_mode = NULL;
 	bool native_mode_found = false;
 	bool recalculate_timing = false;
-	bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false;
+	bool scale = dm_state->scaling != RMX_OFF;
 	int mode_refresh;
 	int preferred_refresh = 0;
 	enum color_transfer_func tf = TRANSFER_FUNC_UNKNOWN;
@@ -6604,7 +6603,9 @@ enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connec
 		goto fail;
 	}
 
-	stream = create_validate_stream_for_sink(aconnector, mode, NULL, NULL);
+	stream = create_validate_stream_for_sink(aconnector, mode,
+						 to_dm_connector_state(connector->state),
+						 NULL);
 	if (stream) {
 		dc_stream_release(stream);
 		result = MODE_OK;
-- 
2.41.0

[PATCH v6 08/13] drm/amd/display: Register Colorspace property for DP and HDMI

[Harry Wentland]

We want compositors to be able to set the output
colorspace on DP and HDMI outputs, based on the
caps reported from the receiver via EDID.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

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 27868dbb09f6..bdda136235af 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7246,6 +7246,12 @@ static int amdgpu_dm_connector_get_modes(struct drm_connector *connector)
 	return amdgpu_dm_connector->num_modes;
 }
 
+static const u32 supported_colorspaces =
+	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_OPRGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_YCC);
+
 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 				     struct amdgpu_dm_connector *aconnector,
 				     int connector_type,
@@ -7326,6 +7332,15 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 				adev->mode_info.abm_level_property, 0);
 	}
 
+	if (connector_type == DRM_MODE_CONNECTOR_HDMIA) {
+		if (!drm_mode_create_hdmi_colorspace_property(&aconnector->base, supported_colorspaces))
+			drm_connector_attach_colorspace_property(&aconnector->base);
+	} else if (connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+		   connector_type == DRM_MODE_CONNECTOR_eDP) {
+		if (!drm_mode_create_dp_colorspace_property(&aconnector->base, supported_colorspaces))
+			drm_connector_attach_colorspace_property(&aconnector->base);
+	}
+
 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
 	    connector_type == DRM_MODE_CONNECTOR_eDP) {
-- 
2.41.0

[PATCH v6 08/13] drm/amd/display: Register Colorspace property for DP and HDMI

[Harry Wentland]

We want compositors to be able to set the output
colorspace on DP and HDMI outputs, based on the
caps reported from the receiver via EDID.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

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 27868dbb09f6..bdda136235af 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7246,6 +7246,12 @@ static int amdgpu_dm_connector_get_modes(struct drm_connector *connector)
 	return amdgpu_dm_connector->num_modes;
 }
 
+static const u32 supported_colorspaces =
+	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_OPRGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_YCC);
+
 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 				     struct amdgpu_dm_connector *aconnector,
 				     int connector_type,
@@ -7326,6 +7332,15 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 				adev->mode_info.abm_level_property, 0);
 	}
 
+	if (connector_type == DRM_MODE_CONNECTOR_HDMIA) {
+		if (!drm_mode_create_hdmi_colorspace_property(&aconnector->base, supported_colorspaces))
+			drm_connector_attach_colorspace_property(&aconnector->base);
+	} else if (connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+		   connector_type == DRM_MODE_CONNECTOR_eDP) {
+		if (!drm_mode_create_dp_colorspace_property(&aconnector->base, supported_colorspaces))
+			drm_connector_attach_colorspace_property(&aconnector->base);
+	}
+
 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
 	    connector_type == DRM_MODE_CONNECTOR_eDP) {
-- 
2.41.0

[PATCH v6 09/13] drm/amd/display: Signal mode_changed if colorspace changed

[Harry Wentland]

We need to signal mode_changed to make sure we update the output
colorspace.

v2: No need to call drm_hdmi_avi_infoframe_colorimetry as DC does its
    own infoframe packing.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

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 bdda136235af..793ea29b4cfe 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6699,6 +6699,14 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	if (!crtc)
 		return 0;
 
+	if (new_con_state->colorspace != old_con_state->colorspace) {
+		new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(new_crtc_state))
+			return PTR_ERR(new_crtc_state);
+
+		new_crtc_state->mode_changed = true;
+	}
+
 	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
 		struct dc_info_packet hdr_infopacket;
 
@@ -6721,7 +6729,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 		 * set is permissible, however. So only force a
 		 * modeset if we're entering or exiting HDR.
 		 */
-		new_crtc_state->mode_changed =
+		new_crtc_state->mode_changed = new_crtc_state->mode_changed ||
 			!old_con_state->hdr_output_metadata ||
 			!new_con_state->hdr_output_metadata;
 	}
-- 
2.41.0

[PATCH v6 09/13] drm/amd/display: Signal mode_changed if colorspace changed

[Harry Wentland]

We need to signal mode_changed to make sure we update the output
colorspace.

v2: No need to call drm_hdmi_avi_infoframe_colorimetry as DC does its
    own infoframe packing.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

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 bdda136235af..793ea29b4cfe 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6699,6 +6699,14 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 	if (!crtc)
 		return 0;
 
+	if (new_con_state->colorspace != old_con_state->colorspace) {
+		new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(new_crtc_state))
+			return PTR_ERR(new_crtc_state);
+
+		new_crtc_state->mode_changed = true;
+	}
+
 	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
 		struct dc_info_packet hdr_infopacket;
 
@@ -6721,7 +6729,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
 		 * set is permissible, however. So only force a
 		 * modeset if we're entering or exiting HDR.
 		 */
-		new_crtc_state->mode_changed =
+		new_crtc_state->mode_changed = new_crtc_state->mode_changed ||
 			!old_con_state->hdr_output_metadata ||
 			!new_con_state->hdr_output_metadata;
 	}
-- 
2.41.0

[PATCH v6 10/13] drm/amd/display: Send correct DP colorspace infopacket

[Harry Wentland]

Look at connector->colorimetry to determine output colorspace.

We don't want to impact current SDR behavior, so
DRM_MODE_COLORIMETRY_DEFAULT preserves current behavior.

Also add support to explicitly set BT601 and BT709.

v4:
- Roll support for BT709 and BT601 into this patch
- Add default case to avoid warnings for unhandled
  enum values

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 48 ++++++++++++-------
 1 file changed, 31 insertions(+), 17 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 793ea29b4cfe..060a975f9885 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5338,21 +5338,44 @@ get_aspect_ratio(const struct drm_display_mode *mode_in)
 }
 
 static enum dc_color_space
-get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing)
+get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing,
+		       const struct drm_connector_state *connector_state)
 {
 	enum dc_color_space color_space = COLOR_SPACE_SRGB;
 
-	switch (dc_crtc_timing->pixel_encoding)	{
-	case PIXEL_ENCODING_YCBCR422:
-	case PIXEL_ENCODING_YCBCR444:
-	case PIXEL_ENCODING_YCBCR420:
-	{
+	switch (connector_state->colorspace) {
+	case DRM_MODE_COLORIMETRY_BT601_YCC:
+		if (dc_crtc_timing->flags.Y_ONLY)
+			color_space = COLOR_SPACE_YCBCR601_LIMITED;
+		else
+			color_space = COLOR_SPACE_YCBCR601;
+		break;
+	case DRM_MODE_COLORIMETRY_BT709_YCC:
+		if (dc_crtc_timing->flags.Y_ONLY)
+			color_space = COLOR_SPACE_YCBCR709_LIMITED;
+		else
+			color_space = COLOR_SPACE_YCBCR709;
+		break;
+	case DRM_MODE_COLORIMETRY_OPRGB:
+		color_space = COLOR_SPACE_ADOBERGB;
+		break;
+	case DRM_MODE_COLORIMETRY_BT2020_RGB:
+	case DRM_MODE_COLORIMETRY_BT2020_YCC:
+		if (dc_crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB)
+			color_space = COLOR_SPACE_2020_RGB_FULLRANGE;
+		else
+			color_space = COLOR_SPACE_2020_YCBCR;
+		break;
+	case DRM_MODE_COLORIMETRY_DEFAULT: // ITU601
+	default:
+		if (dc_crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB) {
+			color_space = COLOR_SPACE_SRGB;
 		/*
 		 * 27030khz is the separation point between HDTV and SDTV
 		 * according to HDMI spec, we use YCbCr709 and YCbCr601
 		 * respectively
 		 */
-		if (dc_crtc_timing->pix_clk_100hz > 270300) {
+		} else if (dc_crtc_timing->pix_clk_100hz > 270300) {
 			if (dc_crtc_timing->flags.Y_ONLY)
 				color_space =
 					COLOR_SPACE_YCBCR709_LIMITED;
@@ -5365,15 +5388,6 @@ get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing)
 			else
 				color_space = COLOR_SPACE_YCBCR601;
 		}
-
-	}
-	break;
-	case PIXEL_ENCODING_RGB:
-		color_space = COLOR_SPACE_SRGB;
-		break;
-
-	default:
-		WARN_ON(1);
 		break;
 	}
 
@@ -5512,7 +5526,7 @@ static void fill_stream_properties_from_drm_display_mode(
 		}
 	}
 
-	stream->output_color_space = get_output_color_space(timing_out);
+	stream->output_color_space = get_output_color_space(timing_out, connector_state);
 }
 
 static void fill_audio_info(struct audio_info *audio_info,
-- 
2.41.0

[PATCH v6 10/13] drm/amd/display: Send correct DP colorspace infopacket

[Harry Wentland]

Look at connector->colorimetry to determine output colorspace.

We don't want to impact current SDR behavior, so
DRM_MODE_COLORIMETRY_DEFAULT preserves current behavior.

Also add support to explicitly set BT601 and BT709.

v4:
- Roll support for BT709 and BT601 into this patch
- Add default case to avoid warnings for unhandled
  enum values

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 48 ++++++++++++-------
 1 file changed, 31 insertions(+), 17 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 793ea29b4cfe..060a975f9885 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5338,21 +5338,44 @@ get_aspect_ratio(const struct drm_display_mode *mode_in)
 }
 
 static enum dc_color_space
-get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing)
+get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing,
+		       const struct drm_connector_state *connector_state)
 {
 	enum dc_color_space color_space = COLOR_SPACE_SRGB;
 
-	switch (dc_crtc_timing->pixel_encoding)	{
-	case PIXEL_ENCODING_YCBCR422:
-	case PIXEL_ENCODING_YCBCR444:
-	case PIXEL_ENCODING_YCBCR420:
-	{
+	switch (connector_state->colorspace) {
+	case DRM_MODE_COLORIMETRY_BT601_YCC:
+		if (dc_crtc_timing->flags.Y_ONLY)
+			color_space = COLOR_SPACE_YCBCR601_LIMITED;
+		else
+			color_space = COLOR_SPACE_YCBCR601;
+		break;
+	case DRM_MODE_COLORIMETRY_BT709_YCC:
+		if (dc_crtc_timing->flags.Y_ONLY)
+			color_space = COLOR_SPACE_YCBCR709_LIMITED;
+		else
+			color_space = COLOR_SPACE_YCBCR709;
+		break;
+	case DRM_MODE_COLORIMETRY_OPRGB:
+		color_space = COLOR_SPACE_ADOBERGB;
+		break;
+	case DRM_MODE_COLORIMETRY_BT2020_RGB:
+	case DRM_MODE_COLORIMETRY_BT2020_YCC:
+		if (dc_crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB)
+			color_space = COLOR_SPACE_2020_RGB_FULLRANGE;
+		else
+			color_space = COLOR_SPACE_2020_YCBCR;
+		break;
+	case DRM_MODE_COLORIMETRY_DEFAULT: // ITU601
+	default:
+		if (dc_crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB) {
+			color_space = COLOR_SPACE_SRGB;
 		/*
 		 * 27030khz is the separation point between HDTV and SDTV
 		 * according to HDMI spec, we use YCbCr709 and YCbCr601
 		 * respectively
 		 */
-		if (dc_crtc_timing->pix_clk_100hz > 270300) {
+		} else if (dc_crtc_timing->pix_clk_100hz > 270300) {
 			if (dc_crtc_timing->flags.Y_ONLY)
 				color_space =
 					COLOR_SPACE_YCBCR709_LIMITED;
@@ -5365,15 +5388,6 @@ get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing)
 			else
 				color_space = COLOR_SPACE_YCBCR601;
 		}
-
-	}
-	break;
-	case PIXEL_ENCODING_RGB:
-		color_space = COLOR_SPACE_SRGB;
-		break;
-
-	default:
-		WARN_ON(1);
 		break;
 	}
 
@@ -5512,7 +5526,7 @@ static void fill_stream_properties_from_drm_display_mode(
 		}
 	}
 
-	stream->output_color_space = get_output_color_space(timing_out);
+	stream->output_color_space = get_output_color_space(timing_out, connector_state);
 }
 
 static void fill_audio_info(struct audio_info *audio_info,
-- 
2.41.0

[PATCH v6 11/13] drm/amd/display: Always set crtcinfo from create_stream_for_sink

[Harry Wentland]

From: Joshua Ashton <joshua@froggi.es>

Given that we always pass dm_state into here now, this won't ever
trigger anymore.

This is needed for we will always fail mode validation with invalid
clocks or link bandwidth errors.

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 060a975f9885..e17c8afce2f4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6054,7 +6054,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
 
 	if (recalculate_timing)
 		drm_mode_set_crtcinfo(&saved_mode, 0);
-	else if (!dm_state)
+	else
 		drm_mode_set_crtcinfo(&mode, 0);
 
 	/*
-- 
2.41.0

[PATCH v6 11/13] drm/amd/display: Always set crtcinfo from create_stream_for_sink

[Harry Wentland]

From: Joshua Ashton <joshua@froggi.es>

Given that we always pass dm_state into here now, this won't ever
trigger anymore.

This is needed for we will always fail mode validation with invalid
clocks or link bandwidth errors.

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 060a975f9885..e17c8afce2f4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6054,7 +6054,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
 
 	if (recalculate_timing)
 		drm_mode_set_crtcinfo(&saved_mode, 0);
-	else if (!dm_state)
+	else
 		drm_mode_set_crtcinfo(&mode, 0);
 
 	/*
-- 
2.41.0

[PATCH v6 12/13] drm/amd/display: Add debugfs for testing output colorspace

[Harry Wentland]

In order to IGT test colorspace we'll want to print
the currently enabled colorspace on a stream. We add
a new debugfs to do so, using the same scheme as
current bpc reporting.

This might also come in handy when debugging display
issues.

v4:
- Fix function doc comment
- Fix sRGB debug print

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 82234397dd44..caf13b2e8cb6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -906,6 +906,61 @@ static int amdgpu_current_bpc_show(struct seq_file *m, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(amdgpu_current_bpc);
 
+/*
+ * Returns the current colorspace for the crtc.
+ * Example usage: cat /sys/kernel/debug/dri/0/crtc-0/amdgpu_current_colorspace
+ */
+static int amdgpu_current_colorspace_show(struct seq_file *m, void *data)
+{
+	struct drm_crtc *crtc = m->private;
+	struct drm_device *dev = crtc->dev;
+	struct dm_crtc_state *dm_crtc_state = NULL;
+	int res = -ENODEV;
+
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state == NULL)
+		goto unlock;
+
+	dm_crtc_state = to_dm_crtc_state(crtc->state);
+	if (dm_crtc_state->stream == NULL)
+		goto unlock;
+
+	switch (dm_crtc_state->stream->output_color_space) {
+	case COLOR_SPACE_SRGB:
+		seq_printf(m, "sRGB");
+		break;
+	case COLOR_SPACE_YCBCR601:
+	case COLOR_SPACE_YCBCR601_LIMITED:
+		seq_printf(m, "BT601_YCC");
+		break;
+	case COLOR_SPACE_YCBCR709:
+	case COLOR_SPACE_YCBCR709_LIMITED:
+		seq_printf(m, "BT709_YCC");
+		break;
+	case COLOR_SPACE_ADOBERGB:
+		seq_printf(m, "opRGB");
+		break;
+	case COLOR_SPACE_2020_RGB_FULLRANGE:
+		seq_printf(m, "BT2020_RGB");
+		break;
+	case COLOR_SPACE_2020_YCBCR:
+		seq_printf(m, "BT2020_YCC");
+		break;
+	default:
+		goto unlock;
+	}
+	res = 0;
+
+unlock:
+	drm_modeset_unlock(&crtc->mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+	return res;
+}
+DEFINE_SHOW_ATTRIBUTE(amdgpu_current_colorspace);
+
+
 /*
  * Example usage:
  * Disable dsc passthrough, i.e.,: have dsc decoding at converver, not external RX
@@ -3139,6 +3194,8 @@ void crtc_debugfs_init(struct drm_crtc *crtc)
 #endif
 	debugfs_create_file("amdgpu_current_bpc", 0644, crtc->debugfs_entry,
 			    crtc, &amdgpu_current_bpc_fops);
+	debugfs_create_file("amdgpu_current_colorspace", 0644, crtc->debugfs_entry,
+			    crtc, &amdgpu_current_colorspace_fops);
 }
 
 /*
-- 
2.41.0

[PATCH v6 12/13] drm/amd/display: Add debugfs for testing output colorspace

[Harry Wentland]

In order to IGT test colorspace we'll want to print
the currently enabled colorspace on a stream. We add
a new debugfs to do so, using the same scheme as
current bpc reporting.

This might also come in handy when debugging display
issues.

v4:
- Fix function doc comment
- Fix sRGB debug print

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Joshua Ashton <joshua@froggi.es>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 82234397dd44..caf13b2e8cb6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -906,6 +906,61 @@ static int amdgpu_current_bpc_show(struct seq_file *m, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(amdgpu_current_bpc);
 
+/*
+ * Returns the current colorspace for the crtc.
+ * Example usage: cat /sys/kernel/debug/dri/0/crtc-0/amdgpu_current_colorspace
+ */
+static int amdgpu_current_colorspace_show(struct seq_file *m, void *data)
+{
+	struct drm_crtc *crtc = m->private;
+	struct drm_device *dev = crtc->dev;
+	struct dm_crtc_state *dm_crtc_state = NULL;
+	int res = -ENODEV;
+
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state == NULL)
+		goto unlock;
+
+	dm_crtc_state = to_dm_crtc_state(crtc->state);
+	if (dm_crtc_state->stream == NULL)
+		goto unlock;
+
+	switch (dm_crtc_state->stream->output_color_space) {
+	case COLOR_SPACE_SRGB:
+		seq_printf(m, "sRGB");
+		break;
+	case COLOR_SPACE_YCBCR601:
+	case COLOR_SPACE_YCBCR601_LIMITED:
+		seq_printf(m, "BT601_YCC");
+		break;
+	case COLOR_SPACE_YCBCR709:
+	case COLOR_SPACE_YCBCR709_LIMITED:
+		seq_printf(m, "BT709_YCC");
+		break;
+	case COLOR_SPACE_ADOBERGB:
+		seq_printf(m, "opRGB");
+		break;
+	case COLOR_SPACE_2020_RGB_FULLRANGE:
+		seq_printf(m, "BT2020_RGB");
+		break;
+	case COLOR_SPACE_2020_YCBCR:
+		seq_printf(m, "BT2020_YCC");
+		break;
+	default:
+		goto unlock;
+	}
+	res = 0;
+
+unlock:
+	drm_modeset_unlock(&crtc->mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+	return res;
+}
+DEFINE_SHOW_ATTRIBUTE(amdgpu_current_colorspace);
+
+
 /*
  * Example usage:
  * Disable dsc passthrough, i.e.,: have dsc decoding at converver, not external RX
@@ -3139,6 +3194,8 @@ void crtc_debugfs_init(struct drm_crtc *crtc)
 #endif
 	debugfs_create_file("amdgpu_current_bpc", 0644, crtc->debugfs_entry,
 			    crtc, &amdgpu_current_bpc_fops);
+	debugfs_create_file("amdgpu_current_colorspace", 0644, crtc->debugfs_entry,
+			    crtc, &amdgpu_current_colorspace_fops);
 }
 
 /*
-- 
2.41.0

[PATCH v6 13/13] drm/amd/display: Refactor avi_info_frame colorimetry determination

[Harry Wentland]

From: Joshua Ashton <joshua@froggi.es>

Replace the messy two if-else chains here that were
on the same value with a switch on the enum.

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 .../gpu/drm/amd/display/dc/core/dc_resource.c | 28 +++++++++++--------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index c72540d37aef..2f3d9a698486 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -3035,23 +3035,29 @@ static void set_avi_info_frame(
 	hdmi_info.bits.S0_S1 = scan_type;
 
 	/* C0, C1 : Colorimetry */
-	if (color_space == COLOR_SPACE_YCBCR709 ||
-			color_space == COLOR_SPACE_YCBCR709_LIMITED)
+	switch (color_space) {
+	case COLOR_SPACE_YCBCR709:
+	case COLOR_SPACE_YCBCR709_LIMITED:
 		hdmi_info.bits.C0_C1 = COLORIMETRY_ITU709;
-	else if (color_space == COLOR_SPACE_YCBCR601 ||
-			color_space == COLOR_SPACE_YCBCR601_LIMITED)
+		break;
+	case COLOR_SPACE_YCBCR601:
+	case COLOR_SPACE_YCBCR601_LIMITED:
 		hdmi_info.bits.C0_C1 = COLORIMETRY_ITU601;
-	else {
-		hdmi_info.bits.C0_C1 = COLORIMETRY_NO_DATA;
-	}
-	if (color_space == COLOR_SPACE_2020_RGB_FULLRANGE ||
-			color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE ||
-			color_space == COLOR_SPACE_2020_YCBCR) {
+		break;
+	case COLOR_SPACE_2020_RGB_FULLRANGE:
+	case COLOR_SPACE_2020_RGB_LIMITEDRANGE:
+	case COLOR_SPACE_2020_YCBCR:
 		hdmi_info.bits.EC0_EC2 = COLORIMETRYEX_BT2020RGBYCBCR;
 		hdmi_info.bits.C0_C1   = COLORIMETRY_EXTENDED;
-	} else if (color_space == COLOR_SPACE_ADOBERGB) {
+		break;
+	case COLOR_SPACE_ADOBERGB:
 		hdmi_info.bits.EC0_EC2 = COLORIMETRYEX_ADOBERGB;
 		hdmi_info.bits.C0_C1   = COLORIMETRY_EXTENDED;
+		break;
+	case COLOR_SPACE_SRGB:
+	default:
+		hdmi_info.bits.C0_C1 = COLORIMETRY_NO_DATA;
+		break;
 	}
 
 	if (pixel_encoding && color_space == COLOR_SPACE_2020_YCBCR &&
-- 
2.41.0

[PATCH v6 13/13] drm/amd/display: Refactor avi_info_frame colorimetry determination

[Harry Wentland]

From: Joshua Ashton <joshua@froggi.es>

Replace the messy two if-else chains here that were
on the same value with a switch on the enum.

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Simon Ser <contact@emersion.fr>
Cc: Melissa Wen <mwen@igalia.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
---
 .../gpu/drm/amd/display/dc/core/dc_resource.c | 28 +++++++++++--------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index c72540d37aef..2f3d9a698486 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -3035,23 +3035,29 @@ static void set_avi_info_frame(
 	hdmi_info.bits.S0_S1 = scan_type;
 
 	/* C0, C1 : Colorimetry */
-	if (color_space == COLOR_SPACE_YCBCR709 ||
-			color_space == COLOR_SPACE_YCBCR709_LIMITED)
+	switch (color_space) {
+	case COLOR_SPACE_YCBCR709:
+	case COLOR_SPACE_YCBCR709_LIMITED:
 		hdmi_info.bits.C0_C1 = COLORIMETRY_ITU709;
-	else if (color_space == COLOR_SPACE_YCBCR601 ||
-			color_space == COLOR_SPACE_YCBCR601_LIMITED)
+		break;
+	case COLOR_SPACE_YCBCR601:
+	case COLOR_SPACE_YCBCR601_LIMITED:
 		hdmi_info.bits.C0_C1 = COLORIMETRY_ITU601;
-	else {
-		hdmi_info.bits.C0_C1 = COLORIMETRY_NO_DATA;
-	}
-	if (color_space == COLOR_SPACE_2020_RGB_FULLRANGE ||
-			color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE ||
-			color_space == COLOR_SPACE_2020_YCBCR) {
+		break;
+	case COLOR_SPACE_2020_RGB_FULLRANGE:
+	case COLOR_SPACE_2020_RGB_LIMITEDRANGE:
+	case COLOR_SPACE_2020_YCBCR:
 		hdmi_info.bits.EC0_EC2 = COLORIMETRYEX_BT2020RGBYCBCR;
 		hdmi_info.bits.C0_C1   = COLORIMETRY_EXTENDED;
-	} else if (color_space == COLOR_SPACE_ADOBERGB) {
+		break;
+	case COLOR_SPACE_ADOBERGB:
 		hdmi_info.bits.EC0_EC2 = COLORIMETRYEX_ADOBERGB;
 		hdmi_info.bits.C0_C1   = COLORIMETRY_EXTENDED;
+		break;
+	case COLOR_SPACE_SRGB:
+	default:
+		hdmi_info.bits.C0_C1 = COLORIMETRY_NO_DATA;
+		break;
 	}
 
 	if (pixel_encoding && color_space == COLOR_SPACE_2020_YCBCR &&
-- 
2.41.0

Re: [PATCH v6 00/13] Enable Colorspace connector property in amdgpu

[Simon Ser]

Thanks! All of the core DRM patches (1-6) are

Reviewed-by: Simon Ser <contact@emersion.fr>

Re: [PATCH v6 00/13] Enable Colorspace connector property in amdgpu

[Simon Ser]

Thanks! All of the core DRM patches (1-6) are

Reviewed-by: Simon Ser <contact@emersion.fr>