xe_guc_buf_cache_dwords(9)

💖 xe_guc_buf_cache_dwords(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes, that Kernel API Manual — and today's main character is xe_guc_buf_cache_dwords, a lil function that is literally just here to tell you how many dwords the GuC Buffer Cache can hold. no cap, that's the whole job. it's giving "small but mighty" ✨

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🌸 NAME 🌸

xe_guc_buf_cache_dwords — the number of dwords the GuC Buffer Cache supports. that's it, that's the vibe 🫶

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🎀 SYNOPSIS 🎀

u32 xe_guc_buf_cache_dwords (struct xe_guc_buf_cache *cache );

like, you hand it a cache pointer, it hands you back a u32. a little exchange. a little transaction. iconic behavior honestly 💅

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🦋 ARGUMENTS 🦋

• cache — the xe_guc_buf_cache you wanna query. that's the one. give it a poke and see what it says 👑

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⭐ RETURN ⭐

it returns a size — specifically the size of the largest reusable buffer, measured in dwords. so like, dwords. not bytes. dwords. don't get it twisted bestie, the unit matters fr fr 🔥

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🧚 SEE ALSO 🧚

Kernel file ./drivers/gpu/drm/xe/xe_guc_buf.c — go read it, it's right there, i believe in you 💜

• xe_guc_buf_cache_init(9)
• xe_guc_buf_cache_init_with_size(9)
• xe_guc_buf_reserve(9)
• xe_guc_buf_from_data(9)
• xe_guc_buf_release(9)
• xe_guc_buf_sync_read(9)
• xe_guc_buf_flush(9)
• xe_guc_buf_cpu_ptr(9)
• xe_guc_buf_gpu_addr(9)
• xe_guc_cache_gpu_addr_from_ptr(9)

the whole friend group, assembled 🌈

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ngl this page lives at ./drivers/gpu/drm/xe in the kernel source, and it's dated October 2026 — so bestie, if you're reading this, hi from the future 💖

okay that's the whole page, go forth and query your buffer caches responsibly, mwah 💋🎀🌸