STRUCT MSA_EXTCONTEXT(9)

👑 NAME 👑

struct msa_extcontext — the MSA extended context structure, aka the little glow-up container that keeps your vector vibes safe 💅

✨ SYNOPSIS ✨

okay bestie, here's the whole fit, laid out exactly:

struct msa_extcontext {
    struct extcontext       ext;
  #define MSA_EXTCONTEXT_MAGIC    0x784d5341      ;
    unsigned long long      wr[32];
    unsigned int            csr;
 };

🎀 MEMBERS 🎀

• ext — the extended context header, and listen, its magic is literally MSA_EXTCONTEXT_MAGIC — that's the vibe check that proves this struct is who it says it is 🔥
• wr — the most significant 64 bits of each MSA vector register. Not all the bits, just the most significant ones — it's giving main character energy, honestly 🌟
• csr — the value of the MSA control & status register. tiny field, huge responsibility 🫶

🦋 DESCRIPTION 🦋

okay so picture this: MSA context is live for a task, and then a signal gets delivered to it 😭 rude, I know. When that happens, this structure holds the MSA context of that task as it was prior to the signal delivery — like a little time capsule so nothing gets lost, no cap 💖

🌸 SEE ALSO 🌸

• Kernel file ./arch/mips/include/ucontext.h — wait, bestie, exactly as written in the page: ./arch/mips/include/uapi/asm/ucontext.h, go read it ✨
• struct extcontext(9)
• struct ucontext(9)

and that's the whole page, you ate that 💅 this iconic little number lives at ./arch/mips/include/uapi/asm, dated October 2026 — periodt 🎀🦋💜