panthor_mmu_suspend(9)

💖 panthor_mmu_suspend(9) 💖

okay so this is a page from the Kernel API Manual and we're talking about panthor_mmu_suspend — say that five times fast, i swear 😭 it's giving "function name that ate" and honestly? it did.

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✨ NAME ✨

panthor_mmu_suspend — bestie, it suspends the MMU logic. that's the whole vibe. 💅

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🌸 SYNOPSIS 🌸

void panthor_mmu_suspend (struct panthor_device *ptdev );

like, that's it. that's the signature. gorgeous, no notes. ✨

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🎀 ARGUMENTS 🎀

• ptdev — the Device. the main character of this whole operation, fr fr. 🫶

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🦋 DESCRIPTION 🦋

okay so listen. all we're doing here — lowkey the entire job — is de-assigning the AS slots on all active VMs. that's it. that's the task. no cap.

and why, you ask? because once those slots are de-assigned, things get flushed to the main memory ✨ and then no further access to these VMs is possible. so it's giving "closing the door and locking it behind you" energy. 🚪🔒 iconic behavior honestly.

also we suspend the MMU IRQ. yes, that too. don't forget the IRQ. the IRQ is literally part of the deal. 💀

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👑 SEE ALSO 👑

Kernel file ./drivers/gpu/drm/panthor/panthor_mmu.c — go read it, it's right there, iykyk 📖

and now the full squad, the whole friend group, everybody show some love:

• 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_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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okay that's the whole page bestie, go suspend some MMU logic responsibly 🧚‍♀️💜

source: ./drivers/gpu/drm/panthor — dated October 2026 🎀 that's the sign-off, mwah, love u, bye 💋✨