dcn20_split_stream_for_odm(9)

💅 dcn20_split_stream_for_odm(9) — the kernel API manual page, but make it make sense

okay so bestie, welcome to the dcn20_split_stream_for_odm(9) page 🌸 this is the Kernel API Manual entry for one very specific little helper function, and we're gonna go through it together, section by section, no cap.

---

✨ NAME ✨

dcn20_split_stream_for_odm — literally just checking if a stream can be splited for ODM 🦋 (yes, that's the original spelling, we don't touch the facts, we only touch the vibe).

---

🎀 SYNOPSIS 🎀

bool dcn20_split_stream_for_odm (const struct dc *dc , struct
       resource_context *res_ctx , struct pipe_ctx *prev_odm_pipe , struct
       pipe_ctx *next_odm_pipe );

it returns a bool, it takes four args, that's the whole shape of it, iconic behavior honestly 👑

---

🌈 ARGUMENTS 🌈

• dc — the DC object, and it's carrying the resource pool info that's required for the pipe split 💖
• res_ctx — the persistent state of resources, she's in it for the long haul ✨
• prev_odm_pipe — a reference to the previous ODM pipe 🫶
• next_odm_pipe — a reference to the next ODM pipe 🫶

---

💜 DESCRIPTION 💜

so here's the tea 🍓 this function takes a logically active pipe and a logically free pipe, and it halves all the scaling parameters that need to be halved 😭 while it populates the free pipe with the required resources and configures the next/previous ODM pipe pointers.

that's the whole job. halve the scaling params that need halving, fill in the free pipe's resources, wire up the pointers. main character energy for a helper function, ngl 💅

---

⭐ RETURN ⭐

it returns true if split stream for ODM is possible — and otherwise? false 💀 that's it, that's the return value clause, periodt.

---

🌸 SEE ALSO 🌸

• Kernel file — ./drivers/gpu/drm/amd/display/dc/resource/dcn20/dcn20_resource.c 🔥 go read the source bestie, iykyk

---

and that's the page!! 💖 cute little sign-off for you: this one's from the source/version line ./drivers/gpu/drm/amd/display/... and it's dated October 2026 🎀🦋 so go forth, split those streams for ODM, and slay ✨👑