panthor_mmu_unplug(9)

💅 panthor_mmu_unplug(9) — Kernel API Manual

okay so bestie, we're looking at panthor_mmu_unplug(9) from the Kernel API Manual, and honestly? it's a short one but it matters, so pay attention 🎀

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✨ NAME ✨

panthor_mmu_unplug — unplug the MMU logic, fr fr. that's the whole vibe. 🔌

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🌸 SYNOPSIS 🌸

void panthor_mmu_unplug (struct panthor_device *ptdev );

like, no return value, it's a void, she just does the thing and leaves 💅

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🦋 ARGUMENTS 🦋

• ptdev — the Device. that's it. that's the whole argument list. one (1) device, hand it over 🫶

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🔥 DESCRIPTION 🔥

so here's the tea: after you call this function, nobody should be touching the MMU regs. like, not a single access. not even a little peek. no cap. 😭

the way we make that guarantee happen? we suspend the IRQ and we disable all the VMs. both. together. that combo is what guarantees it. periodt. ✨

highkey important: No access to the MMU regs should be done after this function is called. — that's a hard rule, not a suggestion, bestie 💀

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👑 SEE ALSO 👑

the whole friend group, gathered for the occasion 🌈 — and also the kernel file ./drivers/gpu/drm/panthor/panthor_mmu.c, which is where all of this lives 🧚

• 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_get_bo_for_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_init(9)
• panthor_mmu_debugfs_init(9)
• panthor_mmu_pt_cache_init(9)
• panthor_mmu_pt_cache_fini(9)

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that's the whole page, bestie, you ate that 🍓💜 — this one came out of ./drivers/gpu/drm/panthor and it's dated October 2026, so like, future vibes only ⭐🌸 go forth and don't touch those MMU regs 💅✨