evergreen_hpd_init(9)

💖 evergreen_hpd_init(9) 💖

okay so bestie, welcome to another page from the Kernel API Manual — this one's called evergreen_hpd_init(9) and it's literally the glow-up routine for your card's hot-plug-detect pins. let's get into it ✨

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🦋 SYNOPSIS 🦋

void evergreen_hpd_init (struct radeon_device *rdev );

that's it. that's the whole vibe. one function, one pointer, no returns, no drama 💅

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🌸 ARGUMENTS 🌸

• rdev — a radeon_device pointer. that's your whole GPU situation right there, bestie. hand it over and let the function do its thing 🫶

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✨ DESCRIPTION ✨

so what does it actually do? it sets up the hpd pins that your card uses — and yes, this is the evergreen+ era of cards, so if you're on one of those, this is your moment 👑

the setup is a three-step slay, in order:

1. enable the pin — gotta be on before anything else, obviously 🔥
2. set the polarity — because direction matters, periodt 💅
3. enable the hpd interrupts — so the card can actually tell you when something gets plugged in, which is the whole point ngl

that's the entire description. no extra lore, no secret steps — that's canon, fr fr 🌈

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🎀 SEE ALSO 🎀

the main character file itself lives right here:

• Kernel file ./drivers/gpu/drm/radeon/evergreen.c

and the rest of the friend group (all (9) man pages, all iconic):

• evergreen_get_allowed_info_register(9)
• dce4_wait_for_vblank(9)
• evergreen_page_flip(9)
• evergreen_page_flip_pending(9)
• sumo_pm_init_profile(9)
• btc_pm_init_profile(9)
• evergreen_pm_misc(9)
• evergreen_pm_prepare(9)
• evergreen_pm_finish(9)
• evergreen_hpd_sense(9)
• evergreen_hpd_set_polarity(9)
• evergreen_hpd_fini(9)
• evergreen_bandwidth_update(9)
• evergreen_mc_wait_for_idle(9)
• evergreen_gfx_is_lockup(9)

like, the whole radeon evergreen cinematic universe is right there. go read them, iykyk 💜

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and that's the page, bestie!! sourced straight from ./drivers/gpu/drm/radeon and dated October 2026 — so you know it's fresh 🍓✌️ mwah, go enable those interrupts 💖🧚‍♀️