From 9342a9ae54ef299ffe5e4ce3d0be6a4da5edba0e Mon Sep 17 00:00:00 2001 From: Melissa Wen Date: Thu, 16 Nov 2023 18:57:44 -0100 Subject: drm/amd/display: add driver-specific property for plane degamma LUT Hook up driver-specific atomic operations for managing AMD color properties. Create AMD driver-specific color management properties and attach them according to HW capabilities defined by `struct dc_color_caps`. First add plane degamma LUT properties that means user-blob and its size. We will add more plane color properties in the next patches. In addition, we define AMD_PRIVATE_COLOR to guard these driver-specific plane properties. Plane degamma can be used to linearize input space for arithmetical operations that are more accurate when applied in linear color. v2: - update degamma LUT prop description - move private color operations from amdgpu_display to amdgpu_dm_color v5: - get degamma blob correctly (Joshua) Reviewed-by: Harry Wentland Co-developed-by: Joshua Ashton Signed-off-by: Joshua Ashton Signed-off-by: Melissa Wen Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h index d8083972e393..a63b01aa230d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h @@ -343,6 +343,18 @@ struct amdgpu_mode_info { int disp_priority; const struct amdgpu_display_funcs *funcs; const enum drm_plane_type *plane_type; + + /* Driver-private color mgmt props */ + + /* @plane_degamma_lut_property: Plane property to set a degamma LUT to + * convert encoded values to light linear values before sampling or + * blending. + */ + struct drm_property *plane_degamma_lut_property; + /* @plane_degamma_lut_size_property: Plane property to define the max + * size of degamma LUT as supported by the driver (read-only). + */ + struct drm_property *plane_degamma_lut_size_property; }; #define AMDGPU_MAX_BL_LEVEL 0xFF -- cgit v1.2.3-70-g09d2