STRUCT MPC_TREE(9)

💅 struct mpc_tree(9) 💅

okay so you're reading the Kernel API Manual (yes, the Kernel API Manual, we're in the big leagues now) and you've stumbled onto struct mpc_tree. bestie. this is literally the whole MPCC friend-group for one pipe. let me explain 🫶

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✨ NAME ✨

struct mpc_tree — the MPC tree, which represents, like, all the MPCC connections for a pipe. every single one. no gatekeeping 💖

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✨ SYNOPSIS ✨

struct mpc_tree {
    int opp_id;
    struct mpcc *opp_list;
 };

look at her. two members, zero drama, absolute main character energy ✨ (also yes, we're keeping that little space before the closing brace, she's built different okay 😌)

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✨ Members ✨

• opp_id — the OPP instance that owns this MPC tree. think of it as the name on the lease 📝 the OPP is the one whose tree this is, periodt.
• opp_list — the top MPCC layer of the MPC tree, aka the one that outputs to the OPP endpoint 👑 it's giving "top of the chain" energy, fr fr.

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✨ SEE ALSO ✨

go read these next, i'm obsessed with all of them 🦋

• Kernel file ./drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
• overview(9)
• enum mpcc_alpha_blend_mode(9)
• struct mpcc_blnd_cfg(9)
• struct mpcc(9)
• struct mpc_funcs(9)

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okay that's the whole page, you ate that 💅

signing off with the deets so you can cite me properly: this came from the path ./drivers/gpu/drm/amd/display/..., it's the October 2026 version, and it's struct mpc_tree(9) — the one and only 🎀✨🌸