radeon_vm_bo_update(9)

✨ radeon_vm_bo_update(9) ✨

okay so bestie, welcome to the kernel API manual, this one's from the radeon_vm_bo_update(9) page 💅 and it's literally all about mapping a bo into the vm page table. yes i said bo. we're being technical and cute today 🎀

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💖 NAME 💖

radeon_vm_bo_update — map a bo into the vm page table

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🌸 SYNOPSIS 🌸

int radeon_vm_bo_update (struct radeon_device *rdev , struct
       radeon_bo_va *bo_va , struct ttm_resource *mem );

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🦋 ARGUMENTS 🦋

• rdev — a radeon_device pointer, you know the vibe 👑
• bo_va — the radeon buffer virtual address object, main character energy fr
• mem — the ttm mem, no cap

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✨ DESCRIPTION ✨

So what it does: it fills in the page table entries for bo (cayman+). that's literally the whole moment 😭 it returns 0 for success, and -EINVAL for failure. periodt.

⚠️ okay important warning bestie: the object have to be reserved and mutex must be locked! like do not skip that step, i'm begging 🙈

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💜 SEE ALSO 💜

Kernel file ./drivers/gpu/drm/radeon/radeon_vm.c — and the whole friend group:

• radeon_vm_num_pdes(9)
• radeon_vm_directory_size(9)
• radeon_vm_manager_init(9)
• radeon_vm_manager_fini(9)
• radeon_vm_get_bos(9)
• radeon_vm_grab_id(9)
• radeon_vm_flush(9)
• radeon_vm_fence(9)
• radeon_vm_bo_find(9)
• radeon_vm_bo_add(9)
• radeon_vm_set_pages(9)
• radeon_vm_clear_bo(9)
• radeon_vm_bo_set_addr(9)
• radeon_vm_map_gart(9)
• radeon_vm_page_flags(9)
• radeon_vm_update_page_directory(9)
• radeon_vm_frag_ptes(9)
• radeon_vm_update_ptes(9)
• radeon_vm_fence_pts(9)
• radeon_vm_clear_freed(9)
• radeon_vm_clear_invalids(9)
• radeon_vm_bo_rmv(9)
• radeon_vm_bo_invalidate(9)
• radeon_vm_init(9)
• radeon_vm_fini(9)

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that's the whole glossary bestie, go read them all, i know you will 💖

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signed, sealed, delivered with love from ./drivers/gpu/drm/radeon — dated October 2026, version radeon_vm_bo_update(9), slay 🌈🫶