dcn60_build...mon_sequence(9)

💅 dcn60_build_hubbub_perfmon_sequence(9)

okay so bestie, this is a page straight out of the Kernel API Manual (section 9, the fun one 🎀), and it's about one very specific little function that builds the hubbub perfmon BLS sequence. yes that's a lot of words, no i will not be apologizing, let's go ✨

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🌸 NAME 🌸

dcn60_build_hubbub_perfmon_sequence — literally just builds the hubbub perfmon BLS sequence 💖 that's the whole gig, that's the assignment, she ate and left no crumbs.

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✨ SYNOPSIS ✨

void dcn60_build_hubbub_perfmon_sequence (struct dc *dc , struct
dc_state *context , const struct dc_probe_state *probe , struct
dc_probe_status *status , struct block_sequence *block_sequence ,
unsigned int *num_steps );

it returns void, so like… no return value, no drama, she just does the thing and leaves 👑 (the output goes through the pointers, iykyk)

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🦋 ARGUMENTS 🦋

• dc — the DC structure 🫶 your main character, the whole DC thing itself.
• context — the committed dc state, and it's the one we resolve streams from. so if you're wondering "where do the streams come from", it's her 💅
• probe — the probe state, and we're building the sequence for this one. const, so hands off, no touching 🙈
• status — the perfmon status that gets updated with the probe results. she's getting a glow-up with real data ✨
• block_sequence — the block sequence we're appending steps to. it's giving "work in progress, more steps incoming" 🎀
• num_steps — number of steps in the block sequence. a unsigned int *, so yes she's a pointer, keep up bestie 🌈

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💜 DESCRIPTION 💜

so what she actually does: she appends BLS steps for the given probe into block_sequence 🔥 simple, iconic, done.

but — and this is the important part, pay attention 💀 — no steps are added when the probe type is unsupported or prerequisites are not met. like, zero. none. she simply does not participate in that situation 😭 so if your block sequence is looking suspiciously empty, do a vibe check on your probe type and your prerequisites first, fr fr.

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⭐ SEE ALSO ⭐

• the kernel file itself, right here, go look at the source bestie: ./drivers/gpu/drm/amd/display/dc/hwss/dcn60/dcn60_hwseq.c
• dcn60_get_ref_tg_for_hubbub_probe(9) — her friend 🫶
• dcn60_update_probe_status(9) — also her friend 🫶
• is_probe_measurement_type_for_hubbub(9) — yes, also her friend, this squad is deep 👑
• dcn60_program_perfmon(9) — and the last one, squad complete 💖

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and that's the page, bestie 🌸 sign-off time: this one lives in the kernel source at ./drivers/gpu/drm/amd/display/... and it's dated October 2026 ⭐ periodt, go build some sequences 💅✨