qcom_tzmem_to_phys(9)

qcom_tzmem_to_phys(9) 💅

okay so bestie, welcome to the Kernel API Manual corner for qcom_tzmem_to_phys(9) ✨ this one is short, sweet, and literally about turning a TZ-memory virtual address into its physical address. no cap.

✨ NAME ✨

qcom_tzmem_to_phys — map the virtual address of TZ memory to physical 🎀

🌸 SYNOPSIS 🌸

phys_addr_t qcom_tzmem_to_phys (void *vaddr );

that's the whole signature, periodt.

🦋 ARGUMENTS 🦋

• vaddr — the virtual address of memory allocated from a TZ memory pool 💖

💜 DESCRIPTION 💜

ok so this helper can be used in any context — no restrictions, bestie. But the address you pass in must point to memory allocated using qcom_tzmem_alloc. That's the vibe check: if it didn't come from qcom_tzmem_alloc, don't come here with it 🙈.

🔥 RETURN 🔥

It returns the physical address mapped from the virtual one, or 0 if the mapping failed 😭. That's it — 0 is the “nope, failed” signal.

🌈 SEE ALSO 🌈

• Kernel file: ./drivers/firmware/qcom/qcom_tzmem.c
• qcom_tzmem_shm_bridge_create(9)
• qcom_tzmem_shm_bridge_delete(9)
• qcom_tzmem_pool_new(9)
• qcom_tzmem_pool_free(9)
• devm_qcom_tzmem_pool_new(9)
• qcom_tzmem_alloc(9)
• qcom_tzmem_free(9)

mwah 💋 source/version ./drivers/firmware/qcom · October 2026 · qcom_tzmem_to_phys(9) 🫶