cz_ih_irq_init(9)

🦋 cz_ih_irq_init(9) 🦋

Okay bestie, welcome to the Kernel API Manual entry for cz_ih_irq_init(9) — she's giving interrupt-ring init energy and I'm obsessed. ✨

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🌸 NAME 🌸

cz_ih_irq_init — init and enable the interrupt ring

✨ SYNOPSIS ✨

The signature is literally:

int cz_ih_irq_init (struct amdgpu_device *adev );

🎀 ARGUMENTS 🎀

• adev — amdgpu_device pointer. That's it, that's the whole argument, and she ate. 💅

💖 DESCRIPTION 💖

Okay so here's the tea: it allocates a ring buffer for the interrupt controller, enables the RLC, disables interrupts, and does the whole enable-the-IH-ring-buffer-and-enable-it-(VI) thing. Lowkey a whole sequence, highkey iconic. 🔥

Called at device load and reume — yes, reume is exactly how the page spells it, I'm not fixing it, periodt. 😭

Returns 0 for success, errors for failure. Simple as that, fr fr. 🫶

🔥 SEE ALSO 🔥

• Kernel file: ./drivers/gpu/drm/amd/amdgpu/cz_ih.c
• cz_ih_enable_interrupts(9)
• cz_ih_disable_interrupts(9)
• cz_ih_irq_disable(9)
• cz_ih_get_wptr(9)
• cz_ih_decode_iv(9)
• cz_ih_set_rptr(9)

Run, don't walk, bestie — these are the linked-up faves. 💜

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This little page lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's serving cz_ih_irq_init(9) from the Kernel API Manual — mwah, iconic, no cap. 💋🎀