STRUCT LLCC_DRV_DATA(9)

💅 struct llcc_drv_data(9) — like, the Kernel API Manual, bestie 🎀

Okay so this is the manual page for struct llcc_drv_data(9), and yes we're doing this, we're learning the LLCC driver today and honestly? It's giving main character energy. Let's go. ✨

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🌸 NAME 🌸

struct llcc_drv_data — literally all the data that's associated with the LLCC driver, no cap. That's the whole vibe. 💖

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🦋 SYNOPSIS 🦋

Like, here's the struct in all its glory, copy-pasted from the source with love:

struct llcc_drv_data {
    struct device *dev;
    struct regmap **regmaps;
    struct regmap *bcast_regmap;
    struct regmap *bcast_and_regmap;
    const struct llcc_slice_config *cfg;
    const struct llcc_edac_reg_offset *edac_reg_offset;
    struct mutex lock;
    u32 cfg_size;
    u32 num_banks;
    int ecc_irq;
    bool ecc_irq_configured;
    u32 version;
    struct llcc_slice_desc *desc;
 };

Not me obsessing over every single field, but like, we're gonna go through them all because that's just who I am. 🫶

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🌈 MEMBERS 🌈

• dev — the device back-pointer for this LLCC instance. It's lowkey the parent of the whole situation, y'know? 💫
• regmaps — the regmaps that are associated with the LLCC device. Plural! Multiple! Iconic. 🔥
• bcast_regmap — the regmap associated with the LLCC broadcast OR offset. Different regmap from the next one, don't get it twisted bestie.
• bcast_and_regmap — the regmap associated with the LLCC broadcast AND offset. And!! Not or!! Yes the naming is doing the most but we respect it. 💅
• cfg — a pointer to the data structure for slice configuration. Like, it knows where the config lives. It's giving directory energy. 🗂️
• edac_reg_offset — the offset of the LLCC EDAC registers. Just the offset, just the vibes. 🎯
• lock — the mutex associated with each slice. Mutual exclusion, but make it per-slice, periodt. 🔒
• cfg_size — the size of the config data table. A u32, so like, big enough. 💫
• num_banks — the number of LLCC banks. Also a u32. Count 'em. 🏦
• ecc_irq — the interrupt for LLCC cache error detection and reporting. It's an int, it's an IRQ, it's doing important stuff. ⚡
• ecc_irq_configured — okay so the original manpage genuinely gives us no description here 😭 it's a bool, it's right after ecc_irq, and it's giving mystery-girl. We do not invent lore in this house, so: no description in the source, none from me. 🙈
• version — indicates the LLCC version. Short, sweet, a u32, slays. 🔥
• desc — an array pointer of pre-allocated LLCC slice descriptors. Pre-allocated!! It's organized, it's prepared, it's ahead of schedule. 👑

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💜 SEE ALSO 💜

Like, go read the kernel file ./include/linux/soc/qcom/llcc-qcom.h for real, and also these lovely friends:

• struct llcc_slice_desc(9)
• struct llcc_edac_reg_data(9)
• llcc_slice_getd(9)
• llcc_slice_putd(9)
• llcc_get_slice_id(9)
• llcc_get_slice_size(9)
• llcc_slice_activate(9)
• llcc_slice_deactivate(9)

iykyk. Go click through the whole friend group, they're all bangers. 🧚‍♀️

Fr fr though: if you're poking at ecc_irq_configured and expecting documentation, the page doesn't give you any — that's not me being lazy, that's the source being mysterious. 💀

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Okay bestie that's the whole page, you ate that, we both ate that. 🍓 This came from ./include/linux/soc/qcom, dated October 2026, and it's serving struct llcc_drv_data(9) realness from the Kernel API Manual. Now go forth and read the source, mwah! 💖✨🎀🦋