radeon_wb_fini(9)

💅 radeon_wb_fini(9) — the kernel API manual, but make it make sense

okay so bestie, welcome to radeon_wb_fini — a function page from the Kernel API Manual, and honestly? it's short, it's sweet, and it's the cleanup queen of the radeon driver. let's get into it 🎀

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✨ NAME ✨

radeon_wb_fini — Disable Writeback and free memory 🧹💖

like, she turns the writeback off and gives the memory back. that's the whole vibe.

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🌸 SYNOPSIS 🌸

void radeon_wb_fini (struct radeon_device *rdev );

no return value, one argument, and she's out. iconic minimalism fr fr 💅

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🦋 ARGUMENTS 🦋

• rdev — a radeon_device pointer. that's your radeon device handle, bestie. you hand her the device, she handles the writeback stuff. simple as that 🫶

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💜 DESCRIPTION 💜

so here's the tea ☕ — radeon_wb_fini disables Writeback and then frees the Writeback memory, and it does this on all asics. yes, all of them. every single one. no exceptions, no cap 💀✨

and when does it get called? at driver shutdown. so it's the goodbye moment — she's the last one out, turning off the lights and returning the memory she borrowed. very main character energy honestly 👑

heads up: this is teardown code, so think "packing up at the end of the night", not "casually calling this mid-drive" — the page says it's used at driver shutdown, and that's the context to keep in mind 🧚

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🔥 SEE ALSO 🔥

the whole friend group 💖 here's everyone the page points you to, and yes, we're listing every single one because nobody gets left out:

• the kernel file: ./drivers/gpu/drm/radeon/radeon_device.c
• 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_fini(9)
• radeon_doorbell_get(9)
• radeon_doorbell_free(9)
• radeon_wb_disable(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)

that's the roster. go read them if you want the full lore 🌈⭐

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and that's the page, bestie!! short one today, but she's important — the shutdown cleanup icon that she is. this little manual lives under ./drivers/gpu/drm/radeon, dated October 2026, and goes by the very cute name radeon_wb_fini(9). mwah 💋✨🎀