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| author | Joshua Ashton <joshua@froggi.es> | 2023-11-16 18:57:45 -0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-12-13 15:09:54 -0500 |
| commit | d5a348d96e4e2b924fa83e729f8791c03a4f8e24 (patch) | |
| tree | 9f79eefd53b35e18abf9185440701ae36279b6e2 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | |
| parent | 571c2fa26aa654946447c282a09d40a56c7ff128 (diff) | |
| download | linux-d5a348d96e4e2b924fa83e729f8791c03a4f8e24.tar.gz linux-d5a348d96e4e2b924fa83e729f8791c03a4f8e24.tar.bz2 linux-d5a348d96e4e2b924fa83e729f8791c03a4f8e24.zip | |
drm/amd/display: add plane degamma TF driver-specific property
Allow userspace to tell the kernel driver the input space and,
therefore, uses correct predefined transfer function (TF) to go from
encoded values to linear values.
v2:
- rename TF enum prefix from DRM_ to AMDGPU_ (Harry)
- remove HLG TF
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Joshua Ashton <joshua@froggi.es>
Co-developed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h index 446a3962d9c9..41bf0cf56433 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -724,6 +724,18 @@ struct amdgpu_dm_wb_connector { extern const struct amdgpu_ip_block_version dm_ip_block; +enum amdgpu_transfer_function { + AMDGPU_TRANSFER_FUNCTION_DEFAULT, + AMDGPU_TRANSFER_FUNCTION_SRGB, + AMDGPU_TRANSFER_FUNCTION_BT709, + AMDGPU_TRANSFER_FUNCTION_PQ, + AMDGPU_TRANSFER_FUNCTION_LINEAR, + AMDGPU_TRANSFER_FUNCTION_UNITY, + AMDGPU_TRANSFER_FUNCTION_GAMMA22, + AMDGPU_TRANSFER_FUNCTION_GAMMA24, + AMDGPU_TRANSFER_FUNCTION_GAMMA26, +}; + struct dm_plane_state { struct drm_plane_state base; struct dc_plane_state *dc_state; @@ -737,6 +749,13 @@ struct dm_plane_state { * The blob (if not NULL) is an array of &struct drm_color_lut. */ struct drm_property_blob *degamma_lut; + /** + * @degamma_tf: + * + * Predefined transfer function to tell DC driver the input space to + * linearize. + */ + enum amdgpu_transfer_function degamma_tf; }; struct dm_crtc_state { |