xe_bb_init(9)

🌸 NAME 🌸

okay so this is the xe_bb_init(9) page from the Kernel API Manual, and bestie, xe_bb_init is literally here to initialize a batch buffer with memory from a sub-allocator pool. it's giving very specific kernel business, and we respect it 💅

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✨ SYNOPSIS ✨

int xe_bb_init (struct xe_bb *bb , struct xe_sa_manager *bb_pool , u32
       dwords );

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🎀 ARGUMENTS 🎀

• bb — the batch buffer structure you're initializing, bestie.
• bb_pool — the suballoc memory pool you're allocating from, no cap.
• dwords — the number of dwords to be allocated, exactly that.

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🦋 DESCRIPTION 🦋

okay so it initializes the batch buffer by allocating memory from the suballoc pool you specify. that's the whole vibe: batch buffer gets initialized, memory comes from the pool, and we move on with our lives ✨

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💖 RETURN 💖

0 on success, and a negative error code on failure. slay when it's 0; sad girl hours when it's negative 😭

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_bb.c, plus xe_bb_alloc(9) — go peek, iykyk 👑

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mwah 🫶 this little gem lives under ./drivers/gpu/drm/xe, dated October 2026, and it's the xe_bb_init(9) page. bye bestie 💜