STRUCT DMUB_HPD_WORK(9)

🦋 struct dmub_hpd_work(9) 🦋

okay so bestie, welcome to the dmub_hpd_work man page — this is from the Kernel API Manual and honestly? it's giving "small struct, big responsibilities" ✨

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🌸 NAME 🌸

struct dmub_hpd_work — handles the time-consuming work over in the low priority outbox IRQ 💅 no cap, that's literally the whole job description.

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✨ SYNOPSIS ✨

struct dmub_hpd_work {
    struct work_struct handle_hpd_work;
    struct dmub_notification *dmub_notify;
    struct amdgpu_device *adev;
 };

that's the whole struct, she's compact and she knows it 🎀

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💖 Members 💖

• handle_hpd_work — the work that gets executed in a separate thread so it can handle hpd_low_irq. yes bestie, a whole separate thread — we do NOT block the main character here 👑
• dmub_notify — the notification for the callback function. it's a struct dmub_notification * and it's just here to get called back on 🫶
• adev — an amdgpu_device pointer, the classic "hold my device handle" moment 🔥

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🌈 SEE ALSO 🌈

the kernel file is ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h — go read it, iykyk 📖 and while you're there, say hi to the whole friend group:

• struct dm_compressor_info(9)
• struct dm_boot_time_crc_info(9)
• struct vblank_control_work(9)
• struct idle_workqueue(9)
• struct vupdate_offload_work(9)
• struct amdgpu_dm_luminance_data(9)
• struct amdgpu_dm_backlight_caps(9)
• struct dal_allocation(9)
• struct hpd_rx_irq_offload_work_queue(9)
• struct hpd_rx_irq_offload_work(9)
• struct amdgpu_display_manager(9)
• struct amdgpu_hdmi_vsdb_info(9)

literally the entire struct squad, obsessed 💜

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💀 quick vibe check: this page came out of ./drivers/gpu/drm/amd/display/... and it's dated October 2026 — and the manual is named struct dmub_hpd_work(9) for anyone keeping score 🗓️

and that's the page bestie, 10/10 ate, no crumbs — see u in the next one 🧚💖