smu_msg_send_async_locked(9)

🎀 NAME 🎀

okay so this page is smu_msg_send_async_locked(9), straight out of the Kernel API Manual, and it's literally about sending a message asynchronously while the caller already holds the lock. That's the vibe, bestie 💅

---

✨ SYNOPSIS ✨

int smu_msg_send_async_locked (struct smu_msg_ctl *ctl , enum smu_message_type msg , u32 param );

---

💅 ARGUMENTS 💅

• ctl — the message control block. Main character energy, honestly 🫶
• msg — the message type.
• param — the message parameter.

---

🦋 DESCRIPTION 🦋

Sends an SMU message and does not wait for a response. No cap, it just sends it and moves on.

The caller must already hold ctl->lock, and later the caller has to call smu_msg_wait_response to get the result. That's the whole requirement, periodt ✨

---

🌸 RETURN 🌸

0 on success, negative errno on failure. Slay 💖

---

🔥 SEE ALSO 🔥

• Kernel file: ./drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
• smu_cmn_wait_for_response(9)
• smu_cmn_send_smc_msg_with_params_ext(9)
• smu_cmn_send_smc_msg_with_param(9)
• smu_msg_v1_send_msg(9)
• smu_cmn_disable_all_features_with_exception(9)
• smu_cmn_get_pptable_from_firmware(9)

okay bye bestie 💖 — this iconic page lives under ./drivers/gpu/drm/amd/pm/swsmu, dated October 2026, and it's smu_msg_send_async_locked(9), periodt 🫶