hl_mmap_mem_buf_put_handle(9)

🌸 NAME 🌸

hl_mmap_mem_buf_put_handle(9) — from the Kernel API Manual, bestie — is the function that decreases the reference to the buffer with the given handle. That’s the whole vibe: drop a ref, and if it was the last one, the buffer gets released. 💅

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✨ SYNOPSIS ✨

int hl_mmap_mem_buf_put_handle (struct hl_mem_mgr *mmg , u64 handle );

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🎀 ARGUMENTS 🎀

• mmg — the parent unified memory manager 👑
• handle — the requested buffer handle 🎯

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💖 DESCRIPTION 💖

Okay so here’s the tea 🍓: this function decreases the reference to the buffer, and releases it if it was the last one. Reference-count cleanup, but make it cute.

🚨 Real talk, bestie: this shall not be called from an interrupt context. Like, do not even try it. Periodt. 💀

If handle was not found, it returns -EINVAL. Otherwise, it returns the put outcome — either 0 or 1. No cap. ✨

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🦋 SEE ALSO 🦋

Kernel file: ./drivers/accel/habanalabs/common/memory_mgr.c 💾

• hl_mmap_mem_buf_get(9)
• hl_mmap_mem_buf_destroy(9)
• hl_mmap_mem_buf_release(9)
• hl_mmap_mem_buf_remove_idr_locked(9)
• hl_mmap_mem_buf_put(9)
• hl_mmap_mem_buf_alloc(9)
• hl_mmap_mem_buf_vm_close(9)
• hl_mem_mgr_mmap(9)
• hl_mem_mgr_init(9)
• hl_mem_mgr_fini(9)
• hl_mem_mgr_idr_destroy(9)

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mwah 💋 this icon lives in ./drivers/accel/habanalabs/common, dated October 2026 — slay and goodbye 🫶🌈