radeon_doorbell_fini(9)

💅 radeon_doorbell_fini — like, the Kernel API Manual page, bestie

okay so you're looking at radeon_doorbell_fini, a kernel API function from the Linux kernel's manual pages (section 9, the kernel developer one — iykyk). It's filed under the Radeon DRM driver, and honestly? It's the cleanup-girlie of the doorbell world. Let's get into it ✨

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🎀 NAME 🎀

radeon_doorbell_fini — tear down the doorbell driver information. that's the whole job. it tears it down. she's done. 💅

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🌸 SYNOPSIS 🌸

void radeon_doorbell_fini (struct radeon_device *rdev );

that's it. that's the signature. void return, so no little return value to obsess over — she just does the thing and leaves 🦋

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💖 ARGUMENTS 💖

• rdev — a radeon_device pointer. that's your radeon device, your main character. the function needs it to know which device's doorbell info to tear down 🫶

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✨ DESCRIPTION ✨

so basically: this is the function that tears down the doorbell driver information. and the manpage is very specific about the context here — (CIK). that's the generation tag, no cap. Sea Islands energy, if you know the acronym 😌

think of it as the counterpart to the setup function — she's the one who tidies up and says "we're done here" 🌈

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🔥 SEE ALSO 🔥

okay this list is long and I'm obsessed with how thorough it is. everything below is a (9) reference — kernel API manual, all of it 💜

🌼 the file it lives in

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

🍓 the whole friend group

• radeon_program_register_sequence(9), radeon_surface_init(9)
• radeon_scratch_init(9), radeon_scratch_get(9), radeon_scratch_free(9)
• radeon_doorbell_init(9), radeon_doorbell_get(9), radeon_doorbell_free(9)
• radeon_wb_disable(9), radeon_wb_fini(9), radeon_wb_init(9)
• radeon_vram_location(9), radeon_gtt_location(9), radeon_card_posted(9)
• radeon_update_bandwidth_info(9), radeon_boot_test_post_card(9)
• radeon_dummy_page_init(9), radeon_dummy_page_fini(9)
• cail_pll_read(9), cail_pll_write(9), cail_mc_read(9), cail_mc_write(9)
• cail_reg_write(9), cail_reg_read(9), cail_ioreg_write(9), cail_ioreg_read(9)
• radeon_atombios_init(9), radeon_atombios_fini(9), radeon_combios_init(9), radeon_combios_fini(9)
• radeon_vga_set_decode(9), radeon_gart_size_auto(9)
• radeon_check_arguments(9)
• radeon_switcheroo_set_state(9), radeon_switcheroo_can_switch(9)
• radeon_device_init(9), radeon_device_fini(9), radeon_gpu_reset(9)

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lowkey a whole ecosystem up in here. if you're calling radeon_doorbell_fini you probably already met her bestie radeon_doorbell_init 🧚

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👑 the cute sign-off 👑

this page comes from ./drivers/gpu/drm/radeon, and the date on it is October 2026 — so yeah, she's from the future, slay 💀✨ that's the whole manpage, bestie. go tear down those doorbells responsibly. periodt 💅🌈