STRUCT SMP2P_ENTRY(9)

💖 NAME 💖

okay so this is struct smp2p_entry(9) from the Kernel API Manual, and it is literally about driver context matching one entry — one entry, one context, and we are obsessed 🫶✨

🎀 SYNOPSIS 🎀

here's the exact struct, bestie — no cap, character for character:

       struct smp2p_entry {
           struct list_head node;
           struct qcom_smp2p *smp2p;
           const char *name;
           u32 *value;
           u32 last_value;
           struct irq_domain *domain;
           unsigned long irq_enabled[BITS_TO_LONGS( 32)];
           unsigned long irq_rising[BITS_TO_LONGS( 32)];
           unsigned long irq_falling[BITS_TO_LONGS( 32)];
           struct qcom_smem_state *state;
           spinlock_t lock;
        };

👑 Members 👑

• node — list entry to keep track of allocated entries. it's the list-link bestie that keeps tabs on what's been allocated 🌸
• smp2p — reference to the device driver context. just a little reference back to the driver's whole situation, iykyk 💅
• name — name of the entry, to match against smp2p_smem_item. it's the name tag for the matching game, periodt ✨
• value — pointer to smp2p_smem_item entry value. yes, literally that pointer 🎀
• last_value — last handled value. the previous value we already handled, got it.
• domain — irq_domain for inbound entries. inbound IRQ business, slay ⭐
• irq_enabled — bitmap to track enabled irq bits. it's giving "who's enabled" energy 👑
• irq_rising — bitmap to mark irq bits for rising detection. rising-edge detection bookkeeping, fr fr 🌈
• irq_falling — bitmap to mark irq bits for falling detection. falling-edge detection bookkeeping, iconic 🦋
• state — smem state handle. handle to the smem state, okay? 💜
• lock — spinlock to protect read-modify-write of the value. this is the important one: lock it down while doing the read-modify-write dance 🔒

🌈 SEE ALSO 🌈

Kernel file ./drivers/soc/qcom/smp2p.c struct smp2p_smem_item(9), struct qcom_smp2p(9), qcom_smp2p_intr(9) — go read those too, bestie 💖

this gem ships from ./drivers/soc/qcom, dated October 2026, and yes it's still struct smp2p_entry(9) at the bottom — mwah, periodt 💋💅