STRUCT QCOM_SMSM(9)

💖 struct qcom_smsm(9) 💖

okay bestie, welcome to the Kernel API Manual — this page is literally all about struct qcom_smsm, aka the smsm driver context. it’s the little bundle the smsm driver carries around, and we’re gonna go through every field like it’s a group-chat screenshot. no cap. 🫶

✨ NAME ✨

struct qcom_smsm — the smsm driver context. that’s the whole vibe: this struct is the context for the smsm driver. 💅

🦋 SYNOPSIS 🦋

here’s the exact shape of it, bestie — fields, pointers, the whole fit:

struct qcom_smsm {
    struct device *dev;
    u32 local_host;
    u32 num_hosts;
    u32 num_entries;
    u32 *local_state;
    u32 *subscription;
    struct qcom_smem_state *state;
    spinlock_t lock;
    struct smsm_entry *entries;
    struct smsm_host *hosts;
    struct mbox_client mbox_client;
 };

🎀 Members 🎀

• dev — a struct device *; the smsm device pointer. 💖
• local_host — a u32; the column in the subscription matrix representing this system. the way it’s literally this system’s column? iconic. ✨
• num_hosts — a u32; the number of columns in the subscription matrix. counting columns, slay. 🎀
• num_entries — a u32; the number of entries in the state map and rows in the subscription matrix. yes, both. 🦋
• local_state — a u32 *; pointer to the local processor’s state bits. lowkey important. 💅
• subscription — a u32 *; pointer to the local processor’s row in the subscription matrix. main character row energy. 👑
• state — a struct qcom_smem_state *; the smem state handle. handle it. 🫶
• lock — a spinlock_t; spinlock for read-modify-write of the outgoing state. read, modify, write, repeat. 🔥
• entries — a struct smsm_entry *; context for each of the entries. every entry gets its lil context. 🍓
• hosts — a struct smsm_host *; context for each of the hosts. same vibe, host edition. 🌸
• mbox_client — a struct mbox_client; mailbox client handle. it’s giving mailbox client handle, fr fr. 💌

🌈 SEE ALSO 🌈

• Kernel file ./drivers/soc/qcom/smsm.c
• struct smsm_entry(9)
• struct smsm_host(9)
• smsm_update_bits(9)
• smsm_intr(9)
• smsm_mask_irq(9)
• smsm_unmask_irq(9)
• smsm_set_irq_type(9)
• smsm_irq_map(9)
• smsm_parse_mbox(9)
• smsm_parse_ipc(9)
• smsm_inbound_entry(9)
• smsm_get_size_info(9)

okay that’s the whole page 🫶 — brought to you by ./drivers/soc/qcom, dated October 2026, and filed under struct qcom_smsm(9). byeee 💅✨