panthor_vm_get_bo_for_va(9)

💖 panthor_vm_get_bo_for_va(9) 💖

okay so bestie, this is a page from the Kernel API Manual — welcome to the panthor zone 🦋

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✨ NAME ✨

panthor_vm_get_bo_for_va — get the GEM object mapped at a virtual address 🎀

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🌸 SYNOPSIS 🌸

struct panthor_gem_object * panthor_vm_get_bo_for_va (struct panthor_vm
*vm , u64 va , u64 *bo_offset );

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💅 ARGUMENTS 💅

• vm — the VM we're looking into, like your search bar but for GPU memory 🫶
• va — the virtual address to search for, the thing we're hunting down ✨
• bo_offset — the offset of the GEM object mapped at this virtual address. Heads up: this is only valid on success, so don't go reading it if things went sideways 😭

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🔥 DESCRIPTION 🔥

The object returned by this function might no longer be mapped when the function returns. Yeah, I know. It's giving "here's your answer but also maybe not."

It's the caller's responsibility to make sure there's no concurrent map/unmap operations making the returned value invalid — or to make sure it doesn't matter if the object is no longer mapped. Either way, bestie, that's on you 💀

no cap, this is a real caveat — the page literally says the mapping can vanish out from under you. Plan accordingly 👑

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⭐ RETURN ⭐

A valid pointer on success, an ERR_PTR otherwise. That's it, that's the vibe check ✅

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🦋 SEE ALSO 🦋

First up, the source file to go look at: ./drivers/gpu/drm/panthor/panthor_mmu.c 👀

And a whole friend group of related structs and functions, all present and accounted for:

• struct panthor_as_slot(9), struct panthor_mmu(9), struct panthor_vm_pool(9), struct panthor_vma(9), struct panthor_vm_op_ctx(9), struct panthor_vm(9), struct panthor_vm_bind_job(9)
• alloc_pt(9), free_pt(9)
• panthor_vm_has_unhandled_faults(9), panthor_vm_is_unusable(9), panthor_vm_active(9), panthor_vm_idle(9), panthor_vm_as(9)
• panthor_vm_alloc_va(9), panthor_vm_free_va(9)
• panthor_vm_pool_create_vm(9), panthor_vm_pool_destroy_vm(9), panthor_vm_pool_get_vm(9), panthor_vm_pool_destroy(9), panthor_vm_pool_create(9)
• panthor_mmu_suspend(9), panthor_mmu_resume(9), panthor_mmu_pre_reset(9), panthor_mmu_post_reset(9)
• panthor_vm_put(9), panthor_vm_get(9), panthor_vm_get_heap_pool(9), panthor_vm_heaps_sizes(9), panthor_vm_resv(9)
• panthor_vm_bind_job_put(9), panthor_vm_create(9), panthor_vm_bind_job_create(9), panthor_vm_bind_job_prepare_resvs(9), panthor_vm_bind_job_update_resvs(9), panthor_vm_bind_exec_sync_op(9)
• panthor_vm_map_bo_range(9), panthor_vm_unmap_range(9), panthor_vm_prepare_mapped_bos_resvs(9)
• panthor_mmu_unplug(9), panthor_mmu_init(9), panthor_mmu_debugfs_init(9), panthor_mmu_pt_cache_init(9), panthor_mmu_pt_cache_fini(9)

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and that's the whole page, bestie 🎀 this icon of a manpage lives under ./drivers/gpu/drm/panthor, dated October 2026 — slay, go read the rest of the panthor saga 💜✨