amdgpu_dm_irq_set(9)

💅 amdgpu_dm_irq_set(9) — kernel API manual, but make it make sense

okay so bestie, welcome to the section 9 glow-up of amdgpu_dm_irq_set 🎀 this is a kernel API manual page and it's genuinely iconic once you get past the acronyms, i promise.

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✨ NAME ✨

amdgpu_dm_irq_set — enable or disable a DC interrupt source. that's the whole gig 💅

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🌸 SYNOPSIS 🌸

bool amdgpu_dm_irq_set (struct amdgpu_device *adev , enum dc_irq_source
src , bool enable );

like, it takes three things and hands you back a bool. slay.

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🦋 ARGUMENTS 🦋

• adev — the AMD DRM device. your main character hardware fr.
• src — the DC interrupt source you wanna toggle. pick your fighter 🎀
• enable — true to enable the source, false to disable it. binary queen behavior, no cap.

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🔥 DESCRIPTION 🔥

so this is the DM-wide replacement for dc_interrupt_set. lowkey important: since locking is DM's responsibility, this function is a thin wrapper that serializes the underlying read-modify-write against all the other interrupt sources that share HW control registers with src. it's giving "we share a locker, we communicate" energy 🫶

and because of all that shared-register drama, DM must never call dc_interrupt_set directly. like, not ever. that's the rule, periodt 💀

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👑 RETURN 👑

returns true if the source was toggled. that's it, that's the return value ✨

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🌈 SEE ALSO 🌈

kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h — go read it, it's the vibe check

and the whole friend group:

• amdgpu_dm_irq_init(9)
• amdgpu_dm_irq_fini(9)
• amdgpu_dm_irq_register_interrupt(9)
• amdgpu_dm_irq_unregister_interrupt(9)
• amdgpu_dm_irq_ack(9)
• amdgpu_dm_irq_suspend(9)
• amdgpu_dm_irq_resume_early(9)

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and that's the page, bestie 💖 this cutie lives at ./drivers/gpu/drm/amd/display/... and the date stamp on this whole lewk is October 2026 — so yeah, take the notes, study the notes, and go toggle some interrupt sources responsibly 🌸💅🎀