drm_gem_handle_create(9)
β¨ drm_gem_handle_create(9) β¨
okay bestie, so this is a page from the Kernel API Manual (that's the manual name btw, we love a kernel-era moment π«Ά) β it's all about drm_gem_handle_create, and it's literally the "make it official" step for a GEM object. let's get into it π
πΈ SYNOPSIS πΈ
int drm_gem_handle_create (struct drm_file *file_priv , struct
drm_gem_object *obj , u32 *handlep );
π ARGUMENTS π
file_privβ the drm file-private structure you're registering the handle for. it's giving "whose account is this going on" energy.objβ the object to register. the main character in question πhandlepβ pointer to return the created handle back to the caller. that's your little receipt, bestie π§Ύ
π DESCRIPTION π
so what does it actually do? it creates a handle for this object β¨. the way this works: it adds a handle reference to the object, which includes a regular reference count. so heads up β callers will likely want to dereference the object afterwards. don't forget, okay? π
also, since this publishes obj to userspace, the object must be fully set up by this point β like, fully. no half-finished fits allowed π. drivers must call this last in their buffer object creation callbacks. periodt.
fr fr: this is the moment obj goes public, so if you call it too early you're posting a draft to the main feed. do not. π
π¦ SEE ALSO π¦
kernel file ./drivers/gpu/drm/drm_gem.c plus this whole friend group:
drm_gem_huge_mnt_create(9)drm_gem_init(9)drm_gem_object_init(9)drm_gem_private_object_init(9)drm_gem_private_object_fini(9)drm_gem_object_handle_get_if_exists_unlocked(9)drm_gem_object_handle_free(9)drm_gem_object_handle_put_unlocked(9)drm_gem_handle_delete(9)drm_gem_dumb_map_offset(9)drm_gem_handle_create_tail(9)drm_gem_free_mmap_offset(9)drm_gem_create_mmap_offset_size(9)drm_gem_create_mmap_offset(9)drm_gem_get_pages(9)drm_gem_put_pages(9)drm_gem_objects_lookup(9)drm_gem_object_lookup(9)drm_gem_dma_resv_wait(9)drm_gem_open(9)drm_gem_release(9)drm_gem_object_release(9)drm_gem_object_free(9)drm_gem_vm_open(9)drm_gem_vm_close(9)drm_gem_mmap_obj(9)drm_gem_get_unmapped_area(9)drm_gem_mmap(9)drm_gem_lock_reservations(9)drm_gem_lru_init(9)drm_gem_lru_remove(9)drm_gem_lru_move_tail_locked(9)drm_gem_lru_move_tail(9)drm_gem_lru_scan(9)drm_gem_evict_locked(9)
and that's the whole vibe check π this page lives in ./drivers/gpu/drm, dated October 2026, and honestly? iconic. go create some handles, bestie, you got this πβ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms