dce4_wait_for_vblank(9)

✨ dce4_wait_for_vblank(9) ✨

okay so bestie, welcome to the Kernel API Manual entry for dce4_wait_for_vblank — it's giving "tiny function, very specific job" and honestly? we respect it 💅

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🌸 NAME 🌸

dce4_wait_for_vblank — the vblank wait asic callback. that's it, that's the whole vibe 🎀

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🦋 SYNOPSIS 🦋

void dce4_wait_for_vblank (struct radeon_device *rdev , int crtc );

returns nothing (void, lowkey the strong silent type), takes a struct radeon_device * and an int, and yes the spacing in the synopsis is exactly like that, don't come for me 🙈

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💖 ARGUMENTS 💖

• rdev — a radeon_device pointer. it's the radeon device, she's the main character here 👑
• crtc — the crtc you wanna wait for vblank on. you pick her, she waits 🌈

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⭐ DESCRIPTION ⭐

Wait for vblank on the requested crtc (evergreen+). that's the tea ☕ — you hand it a crtc, it waits for that vblank, and this works on evergreen and everything newer than evergreen. no cap, that's the whole description. short and iconic 🫶

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🔥 SEE ALSO 🔥

Kernel file ./drivers/gpu/drm/radeon/evergreen.c — that's where she lives, go say hi 🧚

and the whole friend group, fr fr:

• evergreen_get_allowed_info_register(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_init(9)
• evergreen_hpd_fini(9)
• evergreen_bandwidth_update(9)
• evergreen_mc_wait_for_idle(9)
• evergreen_gfx_is_lockup(9)

ngl bestie, that's a lot of evergreen functions. the evergreen family ate and left no crumbs 💀

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and that's the page!! mwah 💜

this little icon dropped from the ./drivers/gpu/drm/radeon source, stamped October 2026, and it's filed under dce4_wait_for_vblank(9) — go wait for a vblank, slay, periodt 💅✨