Support for HDR10 video was introduced in DisplayPort 1.4. On GLK+ platform, in order to use DisplayPort HDR10, we need to support BT.2020 colorimetry and HDR Static metadata. It implements the CTA-861-G standard for transport of static HDR metadata. It enables writing of HDR metadata infoframe SDP to the panel. The HDR Metadata will be provided by userspace compositors, based on blending policies and passed to the driver through a blob property. And It refactors, renames and extends a function which handled vsc sdp header and data block setup for supporting colorimetry format. And It attaches the colorspace connector property and HDR metadata property to a DisplayPort connector.
These patches tested on below test environment. Test Environment: - Tested System: GLK and Gen11 platform. - Monitor: Dell UP2718Q 4K HDR Monitor. - In order to test DP HDR10, test environment uses patched Kodi-gbm, patched Media driver and HDR10 video.
You can find these on below. [patched Kodi-gbm] - repo: https://github.com/Kwiboo/xbmc/tree/drmprime-hdr [download 4K HDR video file] - link: https://4kmedia.org/lg-new-york-hdr-uhd-4k-demo/ [Media Driver for GLK] - repo https://gitlab.freedesktop.org/emersion/intel-vaapi-driver master branch [Media Driver for ICL] - repo: https://github.com/harishkrupo/media-driver/tree/p010_composite
v2: - Add a missed blank line after function declaration. - Remove useless parentheses. - Minor style fix.
v3: - Remove not handled return values from intel_dp_setup_hdr_metadata_infoframe_sdp(). [Uma] - Add handling of different register size for HDMI_PACKET_TYPE_GAMUT_METADATA on hsw_dip_data_size() for each GEN platforms [Uma] - Add new colorimetry options for DP 1.4a spec. [Ville] - Separate set of colorimetry enum values for DP. [Ville] - In order to checking output format and output colorspace on intel_dp_needs_vsc_sdp(), it passes entire intel_crtc_state stucture.[Ville] - Remove a pointless variable. [Ville]
v4: - Add additional comments to struct drm_prop_enum_list. - Polishing an enum string of struct drm_prop_enum_list.
v5: - Change definitions of DRM_MODE_COLORIMETRYs to follow HDMI prefix and DP abbreviations. - Add missed variables on dp_colorspaces. - Fix typo. [Uma]
v6: - Addressed review comments from Ilia and Ville Split drm_mode_create_colorspace_property() to DP and HDMI connector. Becasue between HDMI and DP have different colorspaces, it renames drm_mode_create_colorspace_property() function to drm_mode_create_hdmi_colorspace_property() function for HDMI connector. And it adds drm_mode_create_dp_colorspace_property() function for creating of DP colorspace property. In order to apply changed and added drm api, i915 driver has channged.
v7: - Fix typo [Jani Saarinen] - Fix white space.
v8: - Addressed review comments from Ville Drop colorimetries which have another way to distinguish or which would not be used.
v9: - Addressed review comments from Ville - Remove a duplicated output color space from intel_crtc_state. - In order to handle colorspace of drm_connector_state, it moves a calling of intel_ddi_set_pipe_settings() function into intel_ddi_pre_enable_dp() - Split hunk into renaming and adding of code. - Add a handling of drm_mode_create_dp_colorspace_property() to intel_attach_colorspace_property(). - Add WARN_ON() when buffer size if larger than register size. - Add BUILD_BUG_ON to check a changing of struct dp_sdp size. - Change a passed size toward write_infoframe() for DP infoframe sdp packet for HDR static metadata.
Gwan-gyeong Mun (8): drm/i915/dp: Extend program of VSC Header and DB for Colorimetry Format drm/i915/dp: Add support of BT.2020 Colorimetry to DP MSA drm: Rename HDMI colorspace property creation function drm: Add DisplayPort colorspace property creation function drm/i915/dp: Attach colorspace property drm/i915: Add new GMP register size for GEN11 drm/i915/dp: Program an Infoframe SDP Header and DB for HDR Static Metadata drm/i915/dp: Attach HDR metadata property to DP connector
drivers/gpu/drm/drm_connector.c | 101 +++++++-- .../gpu/drm/i915/display/intel_connector.c | 21 +- drivers/gpu/drm/i915/display/intel_ddi.c | 17 +- drivers/gpu/drm/i915/display/intel_ddi.h | 3 +- drivers/gpu/drm/i915/display/intel_display.c | 1 - drivers/gpu/drm/i915/display/intel_display.h | 2 - drivers/gpu/drm/i915/display/intel_dp.c | 196 ++++++++++++++++-- drivers/gpu/drm/i915/display/intel_dp.h | 8 + drivers/gpu/drm/i915/display/intel_hdmi.c | 12 +- drivers/gpu/drm/i915/i915_reg.h | 1 + include/drm/drm_connector.h | 7 +- 11 files changed, 323 insertions(+), 46 deletions(-)