throttlectl_...level_select(9)

✨ throttlectl_...level_select ✨

okay so real quick — this is a page straight out of the Kernel API Manual, and it's about one lil function that tells the GPU how hard to chill out. literally its whole personality. 💅

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💖 NAME 💖

throttlectl_gpu_level_select — picks out which throttling level the GPU is gonna be living at 🎀

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🦋 SYNOPSIS 🦋

void throttlectl_gpu_level_select (struct tegra_soctherm *ts , enum
   soctherm_throttle_id throt );

like yes bestie it's a void function, we'll get to that whole situation in a sec 💀

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🌸 ARGUMENTS 🌸

• ts — a pointer to a struct tegra_soctherm. that's the soctherm instance you're messing with, mwah 🫶
• throt — the LIGHT/HEAVY of the throttle event id. that's your vibe selector, iykyk ⭐

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🔥 DESCRIPTION 🔥

okay so here's the tea ☕ — this function programs soctherm's interface to GK20a NV_THERM so it can select one of the pre-configured throttle levels: "Low", "Medium", or "Heavy". that's it, that's the whole job, and it ate 💅✨

the way it just goes in and picks the level… iconic behavior honestly 👑

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🌈 RETURN 🌈

returns boolean true if HW was programmed — no cap, that's what the page says 😭🙈

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🧚 SEE ALSO 🧚

bestie the reading list is long and I'm obsessed with how thorough it is. go be a main character and read all of these fr fr 👑📚

• ccroc_writel(9)
• ccroc_readl(9)
• enforce_temp_range(9)
• thermtrip_program(9)
• throttrip_program(9)
• tegra_soctherm_set_hwtrips(9)
• soctherm_thermal_isr_thread(9)
• soctherm_oc_intr_enable(9)
• soctherm_handle_alarm(9)
• soctherm_edp_isr_thread(9)
• soctherm_edp_isr(9)
• soctherm_oc_irq_lock(9)
• soctherm_oc_irq_sync_unlock(9)
• soctherm_oc_irq_enable(9)
• soctherm_oc_irq_disable(9)
• soctherm_oc_irq_map(9)
• soctherm_irq_domain_xlate_twocell(9)
• soctherm_oc_int_init(9)
• soctherm_init_hw_throt_cdev(9)
• throttlectl_cpu_level_cfg(9)
• throttlectl_cpu_level_select(9)
• throttlectl_cpu_mn(9)
• soctherm_throttle_program(9)

also the kernel file lives at ./drivers/thermal/tegra/soctherm.c if u wanna go snooping 👀🔍

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✨ quick reminder bb: keep every detail exactly as written — the flags, the paths, the numbers. slay responsibly 💖

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and that's the whole page!! shoutout to ./drivers/thermal/tegra for bringing us this absolute banger of a manpage, dated October 2026, no cap. go program some hardware, bestie — you're literally built for this 🫶💜🌸