STRUCT TTM_PRIME_OBJECT(9)

struct ttm_prime_object(9)

okay bestie, welcome to the Kernel API Manual page for struct ttm_prime_object(9) — and yes, she’s a modified base object that is prime-aware 💅✨

💖 NAME 💖

struct ttm_prime_object — Modified base object that is prime-aware 🫶

✨ SYNOPSIS ✨

       struct ttm_prime_object {
           struct ttm_base_object base;
           struct mutex mutex;
           size_t size;
           enum ttm_object_type real_type;
           struct dma_buf *dma_buf;
           void (*refcount_release) (struct ttm_base_object **);
        };

🫶 Members 🫶

• base — the struct ttm_base_object that we derive from, our lil ancestor field 🌱
• mutex — the mutex protecting the dma_buf member 🔒
• size — size of the dma_buf associated with this object 📏
• real_type — type of the underlying object. Needed since we’re setting the value of base::object_type to ttm_prime_type 👑
• dma_buf — non ref-coutned pointer (that spelling is straight from the source, bestie, not me 🙈) to a struct dma_buf created from this object
• refcount_release — the underlying object’s release method. Needed since we set base::refcount_release to our own release method. Signature is literally void (*refcount_release) (struct ttm_base_object **); 💀

👀 SEE ALSO 👀

Kernel file ./drivers/gpu/drm/vmwgfx/ttm_object.h — enum ttm_object_type(9), plus all these cross-refs, no cap:

• ttm_object_type(9)
• struct ttm_base_object(9)
• ttm_base_object_init(9)
• ttm_base_object_lookup(9)
• ttm_base_object_lookup_for_ref(9)
• ttm_base_object_unref(9)
• ttm_ref_object_base_unref(9)
• ttm_object_file_init(9)
• ttm_object_file_release(9)
• ttm_object_device_release(9)

byeee 💅 source/version: ./drivers/gpu/drm/vmwgfx · date: October 2026 · page: struct ttm_prime_object(9) ✨