Nicholas Kazlauskas cf020d49b3 drm/amd/display: Rework CRTC color management ... [Why] To prepare for the upcoming DRM plane color management properties we need to correct a lot of wrong behavior and assumptions made for CRTC color management. The documentation added by this commit in amdgpu_dm_color explains how the HW color pipeline works and its limitations with the DRM interface. The current implementation does the following wrong: - Implicit sRGB DGM when no CRTC DGM is set - Implicit sRGB RGM when no CRTC RGM is set - No way to specify a non-linear DGM matrix that produces correct output - No way to specify a correct RGM when a linear DGM is used We had workarounds for passing kms_color tests but not all of the behavior we had wrong was covered by these tests (especially when it comes to non-linear DGM). Testing both DGM and RGM at the same time isn't something kms_color tests well either. [How] The specifics for how color management works in AMDGPU and the new behavior can be found by reading the documentation added to amdgpu_dm_color.c from this patch. All of the incorrect cases from the old implementation have been addressed for the atomic interface, but there still a few TODOs for the legacy one. Note: this does cause regressions for kms_color@pipe-a-ctm-* over HDMI. The result looks correct from visual inspection but the CRC no longer matches. For reference, the test was previously doing the following: linear degamma -> CTM -> sRGB regamma -> RGB to YUV (709) -> ... Now the test is doing: linear degamma -> CTM -> linear regamma -> RGB to YUV (709) -> ... Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2019-06-22 09:34:13 -05:00
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amdgpu_dm_color.c	drm/amd/display: Rework CRTC color management	2019-06-22 09:34:13 -05:00
amdgpu_dm_crc.c	drm/amd/display: Re-enable CRC capture following modeset	2019-01-28 11:44:03 -05:00
amdgpu_dm_debugfs.c	amdgpu_dm: no need to check return value of debugfs_create functions	2019-06-13 13:59:49 -05:00
amdgpu_dm_debugfs.h	amdgpu_dm: no need to check return value of debugfs_create functions	2019-06-13 13:59:49 -05:00
amdgpu_dm_helpers.c	drm/amd/display: Add DSC support for Navi (v2)	2019-06-22 09:34:07 -05:00
amdgpu_dm_irq.c	drm/amd/display: Delete a redundant memory setting in amdgpu_dm_irq_register_interrupt()	2019-06-17 11:02:03 -05:00
amdgpu_dm_irq.h
amdgpu_dm_mst_types.c	drm/amd/display: Respect aux return values	2019-03-19 15:04:02 -05:00
amdgpu_dm_mst_types.h	drm/amd/display: Cleanup MST non-atomic code workaround	2018-11-07 18:20:49 -05:00
amdgpu_dm_pp_smu.c	drm/amd/display: hook navi10 pplib functions	2019-06-22 09:34:07 -05:00
amdgpu_dm_services.c	drm: Split out drm_probe_helper.h	2019-01-24 13:20:42 +01:00
amdgpu_dm_trace.h	drm/amd/display: Add tracing to dc	2018-12-05 17:49:49 -05:00
amdgpu_dm.c	drm/amd/display: Rework CRTC color management	2019-06-22 09:34:13 -05:00
amdgpu_dm.h	drm/amd/display: Rework CRTC color management	2019-06-22 09:34:13 -05:00
Makefile	drm/amd/display: Moving powerplay functions to a separate class	2018-07-05 16:38:41 -05:00