STRUCT PANTHOR_HEAP_POOL(9)

✨ NAME ✨

okay so bestie, this is struct panthor_heap_pool — the Pool of heap contexts — straight outta the Kernel API Manual (the struct panthor_heap_pool(9) page, iykyk) 💅✨

🎀 SYNOPSIS 🎀

       struct panthor_heap_pool {
           struct kref refcount;
           struct panthor_device *ptdev;
           struct panthor_vm *vm;
           struct rw_semaphore lock;
           struct xarray xa;
           struct panthor_kernel_bo *gpu_contexts;
           atomic_t size;
        };

🫶 Members 🫶

okay bestie, member-by-member tour, no skips:

• refcount — the reference count, literally.
• ptdev — the device.
• vm — the VM this pool is bound to.
• lock — the lock protecting access to xa.
• xa — the array storing panthor_heap objects.
• gpu_contexts — a buffer object containing the GPU heap contexts.
• size — the size of all chunks across all heaps in the pool.

🌈 Description 🌈

this pool is attached to a panthor_file, and bestie, it can't be shared across processes. no cap.

🫶 friendly reminder: not shareable across processes — that's the whole vibe.

👑 SEE ALSO 👑

• Kernel file ./drivers/gpu/drm/panthor/panthor_heap.c
• struct panthor_heap_chunk_header(9)
• struct panthor_heap_chunk(9)
• struct panthor_heap(9)
• panthor_heap_destroy(9)
• panthor_heap_create(9)
• panthor_heap_return_chunk(9)
• panthor_heap_grow(9)
• panthor_heap_pool_put(9)
• panthor_heap_pool_get(9)
• panthor_heap_pool_create(9)
• panthor_heap_pool_destroy(9)
• panthor_heap_pool_size(9)

mwah 💖 this little icon came from source ./drivers/gpu/drm/panthor, dated October 2026, and it's serving struct panthor_heap_pool(9) from the Kernel API Manual — periodt 🌸✨