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* [RFC PATCH v3 0/6] A drm_plane API to support HDR planes
@ 2021-07-30 20:41 Harry Wentland
  2021-07-30 20:41 ` [RFC PATCH v3 1/6] drm/doc: Color Management and HDR10 RFC Harry Wentland
                   ` (5 more replies)
  0 siblings, 6 replies; 38+ messages in thread
From: Harry Wentland @ 2021-07-30 20:41 UTC (permalink / raw)
  To: amd-gfx, dri-devel, ppaalanen, sebastian, mcasas, jshargo,
	Shashank.Sharma
  Cc: Deepak.Sharma, Shirish.S, Vitaly.Prosyak, aric.cyr,
	Bhawanpreet.Lakha, Krunoslav.Kovac, hersenxs.wu,
	Nicholas.Kazlauskas, laurentiu.palcu, ville.syrjala,
	Harry Wentland

We are looking to enable HDR support for a couple of single-plane and
multi-plane scenarios. To do this effectively we recommend new interfaces
to drm_plane. The first patch gives a bit of background on HDR and why we
propose these interfaces.

This update is only changing the documentation, not the code. We feel
that we are not close to anything resembling a consensus for the DRM/KMS
API to support (multi-plane) HDR and would like to further the discussion
on this.

The most important bits in the RFC document are probably the sections on
defining HW details and defining SW intentions. We are worried defining
intricate HW details on the DRM/KMS level leads to a lot of complexity
for compositors which can be avoided by rather defining SW intentions.

I will be off for the entire month of August with little time to follow
this thread but would like to get my updated thoughts out for discussion
anyways. Shashank Sharma will help support this discussion.

v3:
 * Only doc updates (patch 1)
   * Add sections on single-plane and multi-plane HDR
   * Describe approach to define HW details vs approach to define SW intentions
   * Link Jeremy Cline's excellent HDR summaries
   * Outline intention behind overly verbose doc
   * Describe FP16 use-case
   * Clean up links

v2:
 * Moved RFC from cover letter to kernel doc (Daniel Vetter)
 * Created new color space property instead of abusing
   color_encoding property (Ville)
 * Elaborated on need for named transfer functions
 * Expanded on reason for SDR luminance definition
 * Dropped 'color' from transfer function naming
 * Added output_transfer_function on crtc

Bhawanpreet Lakha (3):
  drm/color: Add transfer functions for HDR/SDR on drm_plane
  drm/color: Add sdr boost property
  drm/color: Add color space plane property

Harry Wentland (3):
  drm/doc: Color Management and HDR10 RFC
  drm/color: Add output transfer function to crtc
  drm/amd/display: reformat YCbCr-RGB conversion matrix

 Documentation/gpu/rfc/color_intentions.drawio |   1 +
 Documentation/gpu/rfc/color_intentions.svg    |   3 +
 Documentation/gpu/rfc/colorpipe               |   1 +
 Documentation/gpu/rfc/colorpipe.svg           |   3 +
 Documentation/gpu/rfc/hdr-wide-gamut.rst      | 580 ++++++++++++++++++
 Documentation/gpu/rfc/index.rst               |   1 +
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  17 +-
 drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h   |  28 +-
 .../gpu/drm/arm/display/komeda/komeda_crtc.c  |   7 +-
 .../gpu/drm/arm/display/komeda/komeda_plane.c |   6 +-
 drivers/gpu/drm/arm/malidp_crtc.c             |   7 +-
 drivers/gpu/drm/arm/malidp_planes.c           |   6 +-
 drivers/gpu/drm/armada/armada_crtc.c          |   5 +-
 drivers/gpu/drm/armada/armada_overlay.c       |   6 +-
 .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c    |   7 +-
 drivers/gpu/drm/drm_atomic_uapi.c             |   8 +
 drivers/gpu/drm/drm_color_mgmt.c              | 177 +++++-
 drivers/gpu/drm/i915/display/intel_color.c    |  11 +-
 drivers/gpu/drm/i915/display/intel_color.h    |   2 +-
 drivers/gpu/drm/i915/display/intel_crtc.c     |   4 +-
 drivers/gpu/drm/i915/display/intel_sprite.c   |   6 +-
 .../drm/i915/display/skl_universal_plane.c    |   6 +-
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c     |   9 +-
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c       |   8 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c      |   9 +-
 drivers/gpu/drm/nouveau/dispnv04/overlay.c    |   6 +-
 drivers/gpu/drm/nouveau/dispnv50/head.c       |  13 +-
 drivers/gpu/drm/omapdrm/omap_crtc.c           |  10 +-
 drivers/gpu/drm/omapdrm/omap_plane.c          |   6 +-
 drivers/gpu/drm/rcar-du/rcar_du_crtc.c        |   7 +-
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c   |   5 +-
 drivers/gpu/drm/stm/ltdc.c                    |   8 +-
 drivers/gpu/drm/sun4i/sun8i_vi_layer.c        |  10 +-
 drivers/gpu/drm/tidss/tidss_crtc.c            |   9 +-
 drivers/gpu/drm/tidss/tidss_plane.c           |  10 +-
 drivers/gpu/drm/vc4/vc4_crtc.c                |  16 +-
 include/drm/drm_color_mgmt.h                  |  49 +-
 include/drm/drm_crtc.h                        |  20 +
 include/drm/drm_plane.h                       |  47 +-
 39 files changed, 1074 insertions(+), 60 deletions(-)
 create mode 100644 Documentation/gpu/rfc/color_intentions.drawio
 create mode 100644 Documentation/gpu/rfc/color_intentions.svg
 create mode 100644 Documentation/gpu/rfc/colorpipe
 create mode 100644 Documentation/gpu/rfc/colorpipe.svg
 create mode 100644 Documentation/gpu/rfc/hdr-wide-gamut.rst

--
2.32.0


^ permalink raw reply	[flat|nested] 38+ messages in thread
end of thread, other threads:[~2021-09-30 13:04 UTC | newest]

Thread overview: 38+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-30 20:41 [RFC PATCH v3 0/6] A drm_plane API to support HDR planes Harry Wentland
2021-07-30 20:41 ` [RFC PATCH v3 1/6] drm/doc: Color Management and HDR10 RFC Harry Wentland
2021-08-02 16:30   ` Brian Starkey
2021-08-13  5:12     ` Sharma, Shashank
2021-08-16 11:10       ` Brian Starkey
2021-08-16 12:40         ` Harry Wentland
2021-08-16 13:37           ` sebastian
2021-09-06 21:20             ` Shankar, Uma
2021-09-15 14:36             ` Pekka Paalanen
2021-09-21  1:55               ` Harry Wentland
2021-09-15 14:01   ` Pekka Paalanen
2021-09-15 15:50     ` Jeremy Cline
2021-09-21  0:14     ` Harry Wentland
2021-09-21 13:31       ` Pekka Paalanen
2021-09-21 18:05         ` Harry Wentland
2021-09-22  8:31           ` Pekka Paalanen
2021-09-22 15:28             ` Harry Wentland
2021-09-23  7:43               ` Pekka Paalanen
2021-09-30 13:04                 ` Repository for additional color and HDR related documentation (Re: [RFC PATCH v3 1/6] drm/doc: Color Management and HDR10 RFC) Pekka Paalanen
2021-09-22 15:06       ` [RFC PATCH v3 1/6] drm/doc: Color Management and HDR10 RFC Harry Wentland
2021-09-23  8:01         ` Pekka Paalanen
2021-09-23 13:40           ` Harry Wentland
2021-09-23 15:50             ` Vitaly Prosyak
2021-07-30 20:41 ` [RFC PATCH v3 2/6] drm/color: Add transfer functions for HDR/SDR on drm_plane Harry Wentland
2021-07-30 23:33   ` kernel test robot
2021-07-31  1:18   ` kernel test robot
2021-07-31  1:18   ` [RFC PATCH] drm/color: drm_get_transfer_function_name() can be static kernel test robot
2021-07-31  1:31   ` [RFC PATCH v3 2/6] drm/color: Add transfer functions for HDR/SDR on drm_plane kernel test robot
2021-07-30 20:41 ` [RFC PATCH v3 3/6] drm/color: Add output transfer function to crtc Harry Wentland
2021-07-31  2:13   ` kernel test robot
2021-07-31  3:42   ` kernel test robot
2021-07-30 20:41 ` [RFC PATCH v3 4/6] drm/color: Add sdr boost property Harry Wentland
2021-07-31  0:42   ` kernel test robot
2021-07-31  2:13   ` kernel test robot
2021-07-30 20:41 ` [RFC PATCH v3 5/6] drm/color: Add color space plane property Harry Wentland
2021-07-31  3:47   ` kernel test robot
2021-07-31  3:47   ` [RFC PATCH] drm/color: drm_get_color_space_name() can be static kernel test robot
2021-07-30 20:41 ` [RFC PATCH v3 6/6] drm/amd/display: reformat YCbCr-RGB conversion matrix Harry Wentland

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