l2x0_cache_size_of_parse(9)

💅 l2x0_cache_size_of_parse(9) — the Kernel API Manual, bestie edition 🎀

okay so picture this: you're deep in the Kernel API Manual and you stumble onto l2x0_cache_size_of_parse(9). don't panic, i got you. this is the little function that ✨reads cache size parameters from DT✨ — yes, that's literally its whole job, no cap. it goes digging through the device tree for your l2 cache deets and hands the numbers back to you. lowkey iconic of it. 💖

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✨ NAME ✨

l2x0_cache_size_of_parse — read cache size parameters from DT 🦋

like, actually. that's it. that's the vibe. it reads the cache size params out of the device tree and doesn't make a whole thing of it. periodt. 💅

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✨ SYNOPSIS ✨

int l2x0_cache_size_of_parse (const struct device_node *np , u32
*aux_val , u32 *aux_mask , u32 *associativity , u32 max_way_size );

look at all those pointers, bestie 😭 it returns an int, takes a const struct device_node * plus a whole lil squad of u32 * pointers, and one plain u32 for good measure. main character signature energy ngl. 👑

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✨ ARGUMENTS ✨

• np — the device tree node for the l2 cache 🌸 like, the actual node, in the flesh (well, in the tree). this is where it's getting all its info from.
• aux_val — pointer to the machine-supplied auxilary register value, and the call augments it — as in, the bits it wants get set to 1. 🫶 so your value goes in with some bits already chillin' and comes out with a few more.
• aux_mask — pointer to the machine-supplied auxilary register mask, also augmented by the call — but this one's the opposite vibe: the bits get set to 0. 🩷 mask goes in, bits get cleared, everybody's happy.
• associativity — the variable where the calculated associativity gets returned 💫 yes bestie, it does the math and drops the answer right here for you.
• max_way_size — the maximum size in bytes for the cache ways 🔥 that's the ceiling, the limit, the "no way bigger than this" of it all. get it? way? i'll see myself out. 🙈

quick reminder fr fr: aux_val sets bits to 1, aux_mask sets bits to 0. don't mix them up or it's giving chaos. 💀

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✨ SEE ALSO ✨

• Kernel file ./arch/arm/mm/cache-l2x0.c — the source, the origin story, the mothership 🧚 go read it, iykyk 👑

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okay that's the whole page and you ate that, honestly. 🍓 much love from the ./arch/arm/mm girlies, October 2026 — catch you in the next manpage, bestie!! 💜✨🎀