radeon_asic_init(9)

💖 radeon_asic_init — a.k.a. the Kernel API Manual era 💖

okay so bestie, we're in the Kernel API Manual today and the vibe is very much "graphics driver internals" ✨ like yes we're doing GPU register callbacks, and yes it's gonna slay.

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✨ NAME ✨

radeon_asic_init — the girl whose whole job is registering asic specific callbacks 🎀

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🦋 SYNOPSIS 🦋

int radeon_asic_init (struct radeon_device *rdev );

(no cap, that space before the closing paren is real, we don't touch it, we respect it 💅)

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🌸 ARGUMENTS 🌸

• rdev — the radeon device pointer. that's it. that's the whole argument. main character pointer energy 👑

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💜 DESCRIPTION 💜

so what does she do? bestie. she registers the appropriate asic specific callbacks for each chip family 🫶 literally matching the right callback squad to whichever chip family showed up to the party.

she also sets other asic specific info, like:

• the number of crtcs — yes, plural, multiple of them, iconic
• the register aperture accessors (this part applies to all asics, every single one, no exceptions 💀)

and the return value? 0 for success. that's it. zero means we ate, zero means good vibes, zero means the callbacks are in place 🔥

ngl this is the setup step — she's not rendering your frames, she's making sure the right functions are wired up first. respect the process 🧚

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/gpu/drm/radeon/radeon_asic.c — the source, the origin, the blueprint 💖
• radeon_invalid_rreg(9)
• radeon_invalid_wreg(9)
• radeon_register_accessor_init(9)
• radeon_agp_disable(9)

go read them, iykyk 🦋

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k bye bestie, this page came from ./drivers/gpu/drm/radeon and it's dated October 2026 — so she's fresh, she's documented, and she's lowkey iconic. mwah 💋🎀