panthor_mmu_pre_reset(9)

🌸 panthor_mmu_pre_reset 🌸

okay so bestie, this is the panthor_mmu_pre_reset(9) page from the Kernel API Manual — and it's giving “reset prep, but make it safe” energy. ✨

✨ NAME ✨

panthor_mmu_pre_reset — Prepare for a reset 💅

🌟 SYNOPSIS 🌟

void panthor_mmu_pre_reset (struct panthor_device *ptdev );

🎀 ARGUMENTS 🎀

• ptdev — Device. that's the whole argument, bestie 🫶

💖 DESCRIPTION 💖

okay so what this does is suspend the IRQ, and make sure all VM_BIND queues are stopped. Why? so we don't get asked to do a VM operation while the GPU is down. lowkey crucial. 🛑🔥

and no, we do not cleanly shutdown the AS slots here, because the reset might come from an AS_ACTIVE_BIT stuck situation. that's intentional, not a glitch era. 💅

🦋 SEE ALSO 🦋

Kernel file ./drivers/gpu/drm/panthor/panthor_mmu.c — and here's the whole bestie list, no cap:

• 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_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)

and that's the whole page, bestie 🫶💖 it comes from ./drivers/gpu/drm/panthor, October 2026, manual page panthor_mmu_pre_reset(9). periodt. 🌈👑