hubbub60_pe...er_bandwidth(9)

💖 hubbub60_perfmon_start_measuring_out_of_order_bandwidth(9) 💖

okay bestie, so this is a page from the Kernel API Manual and it's all about hubbub60_perfmon_start_measuring_out_of_order_bandwidth — literally the function that kicks off the out-of-order bandwidth counter. no cap, it's giving "press start on the perf monitor" energy. 🎮✨

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🌸 NAME 🌸

hubbub60_perfmon_start_measuring_out_of_order_bandwidth — Enable the out-of-order BW counter. periodt. 💅

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🎀 SYNOPSIS 🎀

void hubbub60_perfmon_start_measuring_out_of_order_bandwidth (struct
hubbub *hubbub );

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💅 ARGUMENTS 💅

• hubbub — pointer to the hubbub hardware instance. like, the actual hardware vibe you're working with. 🫶

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🔥 DESCRIPTION 🔥

So what does it do? It enables the performance monitor counters that were previously configured by hubbub60_perfmon_arm_measuring_out_of_order_bandwidth. you gotta arm it first, bestie — this is just the "go" button. 🏁

And here's the iconic part: the counter self-stops once the count-off counter reaches its target. there is no explicit stop step for the peak-BW path. it literally handles that all on its own. main character energy fr fr. ✨👑

ngl, don't go looking for a stop function for the peak-BW path — it doesn't exist and it doesn't need to. the counter knows when to quit. 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/display/dc/hubbub/dcn60/dcn60_hubbub.c
• hubbub60_perfmon_arm_measuring_out_of_order_bandwidth(9) — the one you call before this one, iykyk
• hubbub60_perfmon_get_out_of_order_bandwidth_mbps(9) — where you actually go read the numbers after ✨

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okay that's the whole page!! this gem lives at ./drivers/gpu/drm/amd/display/... and the manual is dated October 2026. stay slay, and may your bandwidth always be measured out-of-order 💖🦋🌸