smu_cmn_wait_for_response(9)

✨ smu_cmn_wait_for_response(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 — this one's called smu_cmn_wait_for_response, and it is literally just what it says on the tin: you're waiting on the SMU to text back. 🫶 picture you double-texted the silicon and now you're staring at the read receipt. that's the whole vibe.

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🌸 NAME 🌸

smu_cmn_wait_for_response — wait for response from the SMU. no cap, that's it, that's the function 💅

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🦋 SYNOPSIS 🦋

int smu_cmn_wait_for_response (struct smu_context *smu );

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🎀 ARGUMENTS 🎀

• smu — pointer to an SMU context ✨ (your little handshake with the SMU, basically)

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💜 DESCRIPTION 💜

Wait for status from the SMU. you send the message, then you wait, and the waiting is the whole personality of this function. ⏳

It returns 0 on success, and -errno on error — and that -errno is doing double duty: it tells you the execution status and the result of the message you've been waiting for. 🎯 so like, it's not just "did it work", it's "here's the tea". if you want the full breakdown of what each -errno actually means, go see smu_msg_v1_decode_response — that's the one who spills the details. iykyk 🔥

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🌈 SEE ALSO 🌈

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

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ngl bestie, read the -errno docs before you start guessing. guessing is not a debugging strategy. 😭

okay that's the page!! 🍓 this masterpiece lives in ./drivers/gpu/drm/amd/pm/swsmu, it's stamped October 2026, and if you ever need to find it again just yell smu_cmn_wait_for_response(9) into the void and it'll come running 💖✨👑