STRUCT TI_SCI_XFERS_INFO(9)

📦 version 7.3.1, in nixpkgs unstable

💅 struct ti_sci_xfers_info(9) 💅

okay so bestie, we're cracking open the Kernel API Manual today and the main character is struct ti_sci_xfers_info — literally the Structure to manage transfer information. that's the whole vibe. it's the little backstage crew that keeps track of transfers so nothing turns into chaos. no cap. 🎀

✨ SYNOPSIS ✨

struct ti_sci_xfers_info {
    struct semaphore sem_xfer_count;
    struct ti_sci_xfer *xfer_block;
    unsigned long *xfer_alloc_table;
    spinlock_t xfer_lock;
 };

like yes, four fields, she's compact, she's iconic, she ate. 💅

🌸 Members 🌸

  • sem_xfer_count — a counting semaphore whose whole job is managing how many Messages can be in flight simultaneously at max. it's the bouncer at the door fr fr — counting semaphore for managing max simultaneous Messages. 🫶
  • xfer_block — the Preallocated Message array. preallocated!! she was ready before you even asked. ✨
  • xfer_alloc_table — a Bitmap table for allocated messages. and plot twist: the Index of this bitmap table is also used for the message sequence identifier. one field, two jobs, she's multi-hyphenate. 👑
  • xfer_lock — Protection for message allocation. spinlock said "not on my watch" 🔒💀
lowkey important: that last one is a spinlock guarding allocation, and the first one is a counting semaphore capping simultaneous Messages. don't confuse the two, bestie, they're different girlies with different jobs. 🦋

🌈 SEE ALSO 🌈

starting with the Kernel file, ./drivers/firmware/ti_sci.c — that's home base, iykyk. then the whole friend group:

like, that's the entire group chat and every single one of them is invited. the way this list just keeps going 😭 but we don't skip anybody in this house. 🧚

and that's the page!! 🍓 mwah. this lil writeup lives over in ./drivers/firmware and it's stamped October 2026 — so mark your calendar bestie, and go read the source, it's literally giving main character energy. 💜🌸✨

📦 where this page comes from