amdgpu_dm_irq_handler(9)

💅 amdgpu_dm_irq_handler — from the Kernel API Manual ✨

okay so bestie, we're in the kernel docs today, specifically the Kernel API Manual, and we're talking about amdgpu_dm_irq_handler(9). sounds scary? it's not, i promise, come sit with me 🫶

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✨ NAME ✨

amdgpu_dm_irq_handler — the Generic DM IRQ handler 💅 like that's literally its whole job title and it ate

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🌸 SYNOPSIS 🌸

int amdgpu_dm_irq_handler (struct amdgpu_device *adev , struct
amdgpu_irq_src *source , struct amdgpu_iv_entry *entry );

that's the whole signature, copy it exactly, no freestyling bestie 🎀

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🦋 ARGUMENTS 🦋

• adev — the amdgpu base driver device that's holding the DM device. it's giving "the responsible adult in the room" energy 👑
• source — literally Unused. not me pointing at it, it's just sitting there. we do not perceive it, we do not touch it, it is not the main character 🙈
• entry — the data about the triggered interrupt. this one's the actual tea being spilled ☕

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🔥 DESCRIPTION 🔥

okay so here's the vibe: amdgpu_dm_irq_handler calls all the registered high irq work immediately, and for the low irq it schedules the work instead. high irq gets the instant treatment, low irq gets a little "bestie i'll get to you in a sec" appointment 🎀

and how does it know who handles what? the DM IRQ table is used to find the corresponding handlers. that's it, that's the lookup, the table is the directory, periodt 🦋

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💜 SEE ALSO 💜

• kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c — like, the whole source file, go read it iykwim 📖
• overview(9)
• struct amdgpu_dm_irq_handler_data(9)
• dm_irq_work_func(9)
• amdgpu_dm_irq_register_interrupt(9)
• amdgpu_dm_irq_unregister_interrupt(9)
• amdgpu_dm_irq_init(9)
• amdgpu_dm_irq_fini(9)
• amdgpu_dm_hpd_init(9)
• amdgpu_dm_hpd_fini(9)
• amdgpu_dm_hdmi_hpd_debounce_work(9)
• dmub_hpd_callback(9)
• dmub_hpd_sense_callback(9)
• dm_pflip_high_irq(9)
• dm_crtc_high_irq_handler(9)
• dm_crtc_high_irq(9)
• dm_dcn_vertical_interrupt0_high_irq(9)
• dm_dmub_outbox1_low_irq(9)

yeah that's a whole friend group of cross-references and every single one of them made the list 💅 no cap, not a single one skipped, we love a complete SEE ALSO section 🌈

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ngl the entire page is short and sweet — one function, three arguments, one table lookup, and a whole lot of kernel friends. iconic behaviour honestly 💖

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and that's the tea, bestie ✨ this page came straight out of ./drivers/gpu/drm/amd/display/... and it's dated October 2026, with amdgpu_dm_irq_handler(9) right there in the footer like a signature. go forth and handle those interrupts, you absolute star 🎀💖🌟