STRUCT QCOM_ICC_BCM(9)

🦋 struct qcom_icc_bcm(9) 🦋

okay so bestie, welcome to the Kernel API Manual entry for struct qcom_icc_bcm — literally the Qualcomm specific hardware accelerator nodes known as Bus Clock Manager (BCM). It’s giving very specific kernel internals, and we’re gonna get through every single field together 💖

✨ NAME ✨

struct qcom_icc_bcm — Qualcomm specific hardware accelerator nodes known as Bus Clock Manager (BCM). No cap, that’s the whole vibe of this page 🎀

🌸 SYNOPSIS 🌸

struct qcom_icc_bcm {
    const char *name;
    u32 type;
    u32 addr;
    u64 vote_x[QCOM_ICC_NUM_BUCKETS];
    u64 vote_y[QCOM_ICC_NUM_BUCKETS];
    u64 vote_scale;
    u32 enable_mask;
    bool dirty;
    bool keepalive;
    struct bcm_db aux_data;
    struct list_head list;
    struct list_head ws_list;
    size_t num_nodes;
    struct qcom_icc_node *nodes[];
};

🧚 Members 🧚

• name — the bcm node name used to fetch BCM data from command db. It’s the little name-tag energy for the BCM node 🏷️
• type — latency or bandwidth bcm. That’s the whole type situation, periodt.
• addr — address offsets used when voting to RPMH. Very addressy, very offset-coded ✨
• vote_x — aggregated threshold values, represents sum_bw when type is bw bcm. The aggregate is aggregating, bestie.
• vote_y — aggregated threshold values, represents peak_bw when type is bw bcm. Peak-coded threshold values, we love to see it 🔥
• vote_scale — scaling factor for vote_x and vote_y. It scales the votes, obviously, and it ate 💅
• enable_mask — optional mask to send as vote instead of vote_x/vote_y. Optional icon behavior.
• dirty — flag used to indicate whether the bcm needs to be committed. Not me checking if the BCM is dirty 🙈
• keepalive — flag used to indicate whether a keepalive is required. Keeping it alive, keeping it iconic 🫶
• aux_data — auxiliary data used when calculating threshold values and communicating with RPMh. So it’s the aux data bestie, doing threshold math and RPMh communication ✨
• list — used to link to other bcms when compiling lists for commit. Linked-list core, fr fr.
• ws_list — used to keep track of bcms that may transition between wake/sleep. Wake/sleep transitions stay tracked 💤
• num_nodes — total number of num_nodes. Yes, that’s what it says, and we’re not gonna pretend otherwise 😭
• nodes — list of qcom_icc_nodes that this BCM encapsulates. Encapsulation queen 👑

🌈 SEE ALSO 🌈

• Kernel file ./drivers/interconnect/qcom/icc-rpmh.h
• struct qcom_icc_provider(9)
• struct bcm_db(9)
• struct qcom_icc_qosbox(9)
• struct qcom_icc_node(9)

okay that’s the page, bestie — this one comes from ./drivers/interconnect/qcom, and the version/date vibe is October 2026. Bye, love u, go read the other structs 💜🎀