STRUCT HISI_UNCORE_FREQ(9)

💅 struct hisi_uncore_freq(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — today's main character is struct hisi_uncore_freq, which is literally the data blob for the hisi uncore frequency scaling device. no cap, that's the whole vibe.

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🎀 NAME 🎀

struct hisi_uncore_freq — hisi uncore frequency scaling device data. that's it, that's the function-she-is 🫶

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✨ SYNOPSIS ✨

struct hisi_uncore_freq {
    struct device *dev;
    struct mbox_client cl;
    struct pcc_mbox_chan *pchan;
    int chan_id;
    ktime_t last_cmd_cmpl_time;
    struct mutex pcc_lock;
    struct devfreq *devfreq;
    struct cpumask related_cpus;
    u32 cap;
 };

look at her. every field accounted for, nothing skipped, we stan a complete struct 😭💖

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🦋 Members 🦋

okay let's go field by field, no skipping, we're being thorough today:

• dev — the device of this frequency scaling driver. like, whose device is this? hers. 💅
• cl — the mailbox client object. your little mailbox bestie 🫶
• pchan — the PCC mailbox channel. yes queen, get your channel 📬
• chan_id — the PCC channel ID. gotta know which channel you're on, iykyk
• last_cmd_cmpl_time — timestamp of the last completed PCC command ⏰ like a little receipts log of when the last command finished
• pcc_lock — the PCC channel lock 🔒 mutual exclusion but make it fashion
• devfreq — the devfreq data of this hisi_uncore_freq device. it's giving... self-referential but in a cute way 🌀
• related_cpus — the CPUs whose performance is majorly affected by this uncore frequency domain 🔥 "majorly affected" — so not a casual acquaintance, an actual situationship with your performance
• cap — capability flag 🏳️ a flag! for capabilities! iconic

ngl bestie, if you're poking at these fields directly you better know what you're doing — this is driver-internal data, not a snack 🍓

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/devfreq/hisi_uncore_freq.c — go read the source, she's right there, the whole implementation is literally sitting in this file 👑

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okay that's the whole page, you ate that 💅✨

sign-off szn: this little masterpiece lives in ./drivers/devfreq, dated October 2026 — and the whole time it's been calling itself struct hisi_uncore_freq(9) in the corner like a name tag she never takes off 🎀 byeeee 🦋💖