early_cpu_isa_ext_available(9)

💅 early_cpu_isa_ext_available(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ this one is all about checking whether a cpu node has a specific extension, and honestly? it's giving tiny-but-iconic helper function energy 🎀

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🌸 NAME 🌸

early_cpu_isa_ext_available — check if cpu node has an extension 🔍

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✨ SYNOPSIS ✨

bool early_cpu_isa_ext_available (const void *fdt , int node , const
       char *ext_name );

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🫶 ARGUMENTS 🫶

• fdt — pointer to the device tree blob 🌳
• node — offset of the cpu node 📍
• ext_name — the extension to search for 🔎

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💖 DESCRIPTION 💖

Returns true if the cpu node has the extension, false otherwise 💅

like… that's the vibe check. no cap, that's the whole description. ✨

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🌈 SEE ALSO 🌈

• Kernel file ./arch/riscv/kernel/pi/fdt_early.c 📁
• fdt_device_is_available(9), isa_string_contains(9), fdt_early_match_extension_isa(9), set_satp_mode_from_fdt(9) 👀

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this lil page comes from the Kernel API Manual, sourced from ./arch/riscv/kernel/pi, dated October 2026, and it's literally all about early_cpu_isa_ext_available(9) 🫶✨