for_each_online_cpu_gic(9)

💅 for_each_online_cpu_gic(9) 💅

okay bestie, welcome to the Kernel API Manual page for for_each_online_cpu_gic(9) — it’s giving “little iteration situation with main-character energy” ✨

🌸 NAME 🌸

for_each_online_cpu_gic — iterate over online CPUs, access local registers

✨ SYNOPSIS ✨

for_each_online_cpu_gic (cpu , gic_lock );

🎀 ARGUMENTS 🎀

• cpu — an integer variable that holds the current CPU number. literally its whole job 💅
• gic_lock — a pointer to the raw spin lock used as a guard. yes bestie, guard duty 🔒

🦋 DESCRIPTION 🦋

okay so here’s the vibe: this iterates over the online CPUs & configures the other/redirect register region so you can access each CPU’s GIC local register block. from inside the loop body, you can get at it using read_gic_vo_*() or write_gic_vo_*() accessor functions — or their derivatives. that’s the whole flex 🫶

💜 SEE ALSO 💜

• Kernel file ./drivers/irqchip/irq-mips-gic.c
• gic_irq_lock_cluster(9)

mwah 💋 source/version check: this cutie comes from ./drivers/irqchip, and it’s dated October 2026 — periodt, go read it bestie 🌈⭐