STRUCT UNIPHIER_CACHE_DATA(9)

💖 struct uniphier_cache_data(9) 💖

okay so bestie, this is a page straight outta the Kernel API Manual and it's literally about struct uniphier_cache_data — the UniPhier outer cache specific data. yes she's niche, yes she's iconic, let's get into it 🎀

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✨ NAME ✨

struct uniphier_cache_data — UniPhier outer cache specific data 🦋

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✨ SYNOPSIS ✨

struct uniphier_cache_data {
    void __iomem *ctrl_base;
    void __iomem *rev_base;
    void __iomem *op_base;
    void __iomem *way_ctrl_base;
    u32 way_mask;
    u32 nsets;
    u32 line_size;
    u32 range_op_max_size;
    struct list_head list;
 };

like, look at her. ten fields. all lowercase, all business 💅

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✨ Members ✨

okay so here's the member-by-member breakdown, no cap:

• ctrl_base — the virtual base address of the control registers. like, the control room of the whole vibe 🎛️
• rev_base — the virtual base address of the revision registers. this is where she tells you what version of herself she is ✨
• op_base — the virtual base address of the operation registers. the actual do-stuff zone 🔥
• way_ctrl_base — the virtual address of the way control registers for this SoC revision. so she's revision-specific, main character energy only 👑
• way_mask — each bit specifies if the way is present. one bit per way, present or not, periodt 🧚
• nsets — number of associativity sets. the math of it all 📐
• line_size — line size in bytes. little number, big job 🍓
• range_op_max_size — the max size that can be handled by a single range operation. that's her limit, respect it 😭
• list — list node to include this level in the whole cache hierarchy. she's in the group chat of cache levels, not just a lone wolf 🫶

ngl bestie, this struct is basically a little ID card for one cache level: where her registers live, what revision she is, which ways are present, how many sets she's got, how big her lines are, how much a single range op can chew, and her node in the big hierarchy list.

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✨ SEE ALSO ✨

go read the actual kernel file, it ate: ./arch/arm/mm/cache-uniphier.c, plus __uniphier_cache_sync(9) and __uniphier_cache_maint_common(9) 💜

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and that's the whole page, bestie!! this one lives under ./arch/arm/mm and the version vibe is October 2026 — mwah, slay, see you in the next manpage 🌈💖⭐