STRUCT XE_WOPCM(9)

💖 struct xe_wopcm(9) 💖

okay so bestie, welcome to the Kernel API Manual — this is the page for struct xe_wopcm(9), and it's basically the receipts for WOPCM: the overall WOPCM info and its WOPCM regions. that's literally the whole name. struct xe_wopcm — Overall WOPCM info and WOPCM regions. slay.

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✨ SYNOPSIS ✨

here's the whole vibe, verbatim, no cap:

struct xe_wopcm {
    u32 size;
    struct {
      u32 base;
      u32 size;
    } guc;
 };

like… it's giving nested struct realness 🎀 and yes there's a size at the top level and a size inside guc. that's not a typo, that's just how she is. 💅

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🌸 Members 🌸

okay so let's meet the members one by one, they're all main characters here:

• size — the size of the overall WOPCM. that's it, that's the field. 💖
• guc — the GuC WOPCM Region info. this is the little nested struct holding the GuC-specific stuff, and it's got two members of its own:
  • guc.base — the GuC WOPCM base, which is an offset from the WOPCM base. so like, not the absolute base, bestie — it's the GuC region's base measured from the WOPCM base. that distinction matters, write it down. 📝
  • guc.size — the size of the GuC WOPCM region. how big the GuC slice is. 🦋

ngl that's the entire member list, no hidden extras, no secret fourth thing. we keep it honest here. 🫶

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👑 SEE ALSO 👑

if you wanna go look at the actual source (and honestly, mood), the kernel file lives at:

./drivers/gpu/drm/xe/xe_wopcm_types.h

go off, read the header, iykyk. 🔥

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💀 reminder that every field above is written exactly as it appears in the struct — don't go renaming the nested size to something cute, she is who she is. periodt.

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🌈 and that's the page!! this little beauty comes to you from ./drivers/gpu/drm/xe, dated October 2026, and if you ever need to cite her, she's struct xe_wopcm(9) — mwah, bye bestie, go read some WOPCM info 💜🧚‍♀️