STRUCT DPP_COLOR_CAPS(9)

💅 NAME 💅

okay so this is struct dpp_color_caps(9) from the Kernel API Manual — literally the color pipeline capabilities for display pipe and plane blocks ✨ like, it's the receipts for what color magic each display pipe/plane block can actually do 🎀

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🌸 SYNOPSIS 🌸

no cap, here's the whole struct, exactly as it lives:

struct dpp_color_caps {
    uint16_t dcn_arch : 1;
    uint16_t input_lut_shared : 1;
    uint16_t icsc : 1;
    uint16_t dgam_ram : 1;
    uint16_t post_csc : 1;
    uint16_t gamma_corr : 1;
    uint16_t hw_3d_lut : 1;
    uint16_t ogam_ram : 1;
    uint16_t ocsc : 1;
    uint16_t dgam_rom_for_yuv : 1;
    uint16_t upsp_pre_scaler : 1;
    struct rom_curve_caps dgam_rom_caps;
    struct rom_curve_caps ogam_rom_caps;
 };

like, look at all those lil : 1 bitfields — one bit each, main character energy fr fr 👑

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🦋 Members 🦋

every single member, bestie, in order, no skips:

• dcn_arch — all DCE generations treated the same 💫
• input_lut_shared — shared with DGAM. the Input LUT is different than most LUTs — it's just a plain 256-entry lookup 👀
• icsc — input color space conversion 🌈
• dgam_ram — programmable degamma LUT 💜
• post_csc — post color space conversion, before gamut remap ✨
• gamma_corr — degamma correction 🎀
• hw_3d_lut — 3D LUT support. it implies a shaper LUT before it. it may be shared with MPC by setting the mpc:shared_3d_lut flag 🔥
• ogam_ram — programmable out/blend gamma LUT 🌸
• ocsc — output color space conversion 🦋
• dgam_rom_for_yuv — pre-defined degamma LUT for YUV planes 🍓
• upsp_pre_scaler — the ability to upsample 420/422 before scaling ⭐
• dgam_rom_caps — pre-defined curve caps for degamma 1D LUT 🧚
• ogam_rom_caps — pre-defined curve caps for regamma 1D LUT 💖

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📝 Note 📝

lowkey important: hdr_mult and gamut remap (CTM) are always available in DPP — and yeah, in that order 💅

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👀 SEE ALSO 👀

these all live in the kernel file ./drivers/gpu/drm/amd/display/dc/dc.h — go read them, iykyk:

• MAX_SURFACES(9)
• MAX_PLANES(9)
• color-management-caps(9)
• struct rom_curve_caps(9)
• struct mpc_color_caps(9)
• struct dc_color_caps(9)
• enum pipe_split_policy(9)
• dc_check_state_update(9)
• dc_update_state(9)
• dc_update_state_init(9)
• dc_update_state_prepare(9)
• dc_update_state_execute(9)
• dc_update_state_cleanup(9)
• struct dc_probe_latencies(9)
• struct dc_probe_status(9)
• enum dc_get_status_type(9)
• struct dc_get_status_options(9)
• struct dc_state_status(9)
• dc_state_get_status(9)
• struct dc_validation_stream(9)
• struct dc_validation_set(9)
• dc_get_underflow_debug_data_for_otg(9)
• dc_capture_register_software_state(9)
• dc_get_qos_info(9)
• dc_override_memory_bandwidth_request(9)

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okay that's the whole vibe check 💖 this page came from ./drivers/gpu/drm/amd/display/dc and it's dated October 2026 — periodt, go slay some color pipelines 🫶✨