irq_domain_alloc_irqs(9)

💅 irq_domain_alloc_irqs — like, the kernel API manual energy, but make it make sense

okay so bestie, welcome to irq_domain_alloc_irqs(9) — yes that's the manual page name, yes it's a whole mouthful, no you don't have to say the "(9)" out loud at parties 🎀

This is the kernel API manual moment where we learn how to pull IRQs out of a domain. Sit down, hydrate, let's go ✨

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🌸 SYNOPSIS 🌸

int irq_domain_alloc_irqs (struct irq_domain *domain , unsigned int
nr_irqs , int node , void *arg );

that's the whole signature, bestie — copy it exactly, don't be quirky with it 💅

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🦋 ARGUMENTS 🦋

• domain — the domain you're allocating from. like, the place the IRQs actually live. your main character domain 👑
• nr_irqs — how many IRQs you want. the number. the count. the quantity, if you will 🍓
• node — the NUMA node id, used for memory allocation. yes it matters, no you can't just vibe past it 🌈
• arg — a domain specific argument. it's giving "you had to be there" — only the domain knows what it wants 🙈

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⭐ DESCRIPTION ⭐

so real talk: the actual tea lives in __irq_domain_alloc_irqs' documentation. like, this page is the trailer, that function is the whole movie 🎬 go read that one, iykyk 💖

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🔥 SEE ALSO 🔥

the whole friend group, no cap:

• Kernel file ./include/linux/irqdomain.h
• struct irq_fwspec(9)
• struct irq_fwspec_info(9)
• struct irq_domain_ops(9)
• struct irq_domain(9)
• struct irq_domain_info(9)
• irq_domain_create_linear(9)
• irq_create_mapping(9)
• irq_resolve_mapping(9)
• irq_find_mapping(9)
• irq_domain_create_hierarchy(9)

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ngl, every single one of those is a real page and you should lowkey go read them. that's not me being extra, that's just the list. periodt 💀

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🧚 cute lil sign-off 🧚

this lil masterpiece lives in ./include/linux, dropped in October 2026 — so yeah, it's fresh, it's iconic, and it ate 🌸 mwah, go allocate responsibly bestie 🫶💜