ih_v7_0_irq_init(9)

💖 ih_v7_0_irq_init(9) — Kernel API Manual 💖

okay bestie, we're looking at ih_v7_0_irq_init, straight out of the Kernel API Manual and honestly? she's lowkey a main character. buckle up 💅

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✨ NAME ✨

ih_v7_0_irq_init — init and enable the interrupt ring. that's it, that's the vibe 🎀

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🦋 SYNOPSIS 🦋

int ih_v7_0_irq_init (struct amdgpu_device *adev );

like, she takes one thing and hands you back an int. no cap.

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🌸 ARGUMENTS 🌸

• adev — an amdgpu_device pointer. that's the whole argument. she's low maintenance, we love that 🫶

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🔥 DESCRIPTION 🔥

okay so here's what actually goes down, fr fr:

• Allocate a ring buffer for the interrupt controller ✨
• enable the RLC
• disable interrupts
• enable the IH ring buffer
• and then enable it 💅

she gets called at device load and resume (the page literally spells it "reume" and ngl that's iconic of it 🙈).

returns 0 for success, and errors for failure. that's the contract, don't @ me.

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👑 SEE ALSO 👑

Kernel file ./drivers/gpu/drm/amd/amdgpu/ih_v7_0.c — go read the source bestie, iykyk 💜

and the whole squad:

• ih_v7_0_init_register_offset(9)
• force_update_wptr_for_self_int(9)
• ih_v7_0_toggle_ring_interrupts(9)
• ih_v7_0_toggle_interrupts(9)
• ih_v7_0_enable_ring(9)
• ih_v7_0_irq_disable(9)
• ih_v7_0_get_wptr(9)
• ih_v7_0_irq_rearm(9)
• ih_v7_0_set_rptr(9)
• ih_v7_0_self_irq(9)

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ok that's the whole page, you ate that 🍓 go forth and init those rings 💖

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🌺 mwah, this little number lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026 — periodt, that's the sign-off, love u, bye 🧚‍♀️💫