STRUCT IPA_SMP2P(9)

💖 struct ipa_smp2p(9) — the Kernel API Manual, but make it make sense 💖

okay so bestie, this is struct ipa_smp2p, and it's literally the lil bookkeeping struct for IPA SMP2P information. that's the whole vibe. it's in the kernel API manual, and i'm gonna walk you through every single field like we're studying together at 2am with iced coffee 🫶

✨ NAME ✨

struct ipa_smp2p — IPA SMP2P information. that's it, that's the name, no cap 💅

🌸 SYNOPSIS 🌸

struct ipa_smp2p {
    struct ipa *ipa;
    struct qcom_smem_state *valid_state;
    struct qcom_smem_state *enabled_state;
    u32 valid_bit;
    u32 enabled_bit;
    u32 clock_query_irq;
    u32 setup_ready_irq;
    bool power_on;
    bool notified;
    bool setup_disabled;
    struct mutex mutex;
    struct notifier_block panic_notifier;
 };

look at her. twelve fields. main character struct energy, honestly 👑

🎀 Members 🎀

like a group chat roll call, but for fields. every single one, no skipping 🙈

• ipa — IPA pointer. just a pointer to the IPA, keeping it casual.
• valid_state — SMEM state indicating enabled state is valid. it's the one that says "hey, the enabled state actually means something rn" ✨
• enabled_state — SMEM state to indicate power is enabled. the power-flag messenger 🦋
• valid_bit — Valid bit in 32-bit SMEM state mask. yes, 32-bit, remember that, it's giving very specific 🔥
• enabled_bit — Enabled bit in 32-bit SMEM state mask. same 32-bit mask, different bit, iconic duo 💜
• clock_query_irq — IPA interrupt triggered by modem for power query. the modem literally pings you to ask about power 📲
• setup_ready_irq — IPA interrupt triggered by modem to signal GSI ready. modem's way of saying "GSI is up bestie" 🌈
• power_on — Whether IPA power is on. true/false, the simplest vibe check in the whole struct ⭐
• notified — Whether modem has been notified of power state. did we tell the modem or not, that's the question 💀
• setup_disabled — Whether setup ready interrupt handler is disabled. keeping track of whether that handler is switched off 🙈
• mutex — Mutex protecting ready-interrupt/shutdown interlock. the bouncer at the club, keeping those two from colliding 🍓
• panic_notifier — Panic notifier structure. yeah. the panic one. it's there for when things go bad 😭

👑 SEE ALSO 👑

• Kernel file ./drivers/net/ipa/ipa_smp2p.c — that's where the actual code lives babe 💖
• IPA SMP2P communication with the modem(9) — the modem comms lore 🧚
• ipa_smp2p_notify(9) — the notify entry, go read it iykyk

okay that's the whole page, you ate that 🫶 one last thing: this little beauty comes from ./drivers/net/ipa, dated October 2026, and it's filed under struct ipa_smp2p(9) — so if you ever need to cite her, you know exactly where to look 💅✨🌷