radeon_driver_postclose_kms(9)

💅 radeon_driver_postclose_kms(9) — the Kernel API Manual, bestie edition 🎀

okay so this is a page from the Kernel API Manual about radeon_driver_postclose_kms, and honestly? it's a little cleanup-crew moment and we're obsessed. it's the drm callback for post close. that's the whole vibe. let's get into it 🦋

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✨ NAME ✨

radeon_driver_postclose_kms — the drm callback for post close 🫶

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🌸 SYNOPSIS 🌸

void radeon_driver_postclose_kms (struct drm_device *dev , struct
drm_file *file_priv );

like, that's the signature, no cap. it returns void (nothing comes back, it just does the thing) and it takes two args. periodt 💅

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🎀 ARGUMENTS 🎀

• dev — the drm dev pointer. it's giving "the device itself" energy 👑
• file_priv — the drm file. the actual file handle bestie 🍓

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🧚 DESCRIPTION 🧚

so when the device closes (like, on close close), this function tears stuff down. lowkey the cleanup main character:

• it tears down hyperz and cmask filps on r1xx-r5xx — that's all asics btw, every single one 😭
• and it tears down vm on cayman+ — also all asics, no exceptions, fr fr 💀

that's it. that's the whole job. it shows up, it dismantles the leftovers, it leaves. iconic. 🌈

ngl it's a tear-down function, so don't expect it to build anything back up — that's not its moment 💜

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🔥 SEE ALSO 🔥

• the kernel file: ./drivers/gpu/drm/radeon/radeon_kms.c — go read it, iykyk 💖
• radeon_driver_unload_kms(9)
• radeon_driver_load_kms(9)
• radeon_set_filp_rights(9)
• radeon_info_ioctl(9)
• radeon_driver_open_kms(9)
• radeon_get_vblank_counter_kms(9)
• radeon_enable_vblank_kms(9)
• radeon_disable_vblank_kms(9)

like a whole friend group of radeon functions, and this page is just the one handing out the goodbye hugs 🫶✨

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k bye bestie, this page lives in ./drivers/gpu/drm/radeon, it's dated October 2026, and yeah — that's the whole manual. slay 💅🎀💜