pvr_gem_object_into_handle(9)
π pvr_gem_object_into_handle(9) β from the Kernel API Manual, bestie π
Okay so listen β this is a kernel API manual page, and the function it's hyping up is called pvr_gem_object_into_handle. Yes the name is a whole mouthful, no I did not make it up, and yes it's iconic in a very specific "DRM driver internals" way. Let's get into it. β¨
πΈ NAME πΈ
pvr_gem_object_into_handle β literally just converting a reference to an object into a userspace-accessible handle. That's the whole gig. That's the vibe. π«Ά
β¨ SYNOPSIS β¨
int pvr_gem_object_into_handle (struct pvr_gem_object *pvr_obj , struct
pvr_file *pvr_file , u32 *handle );
Three args, one int coming back at you. Copy it exactly, bestie, no freestyling. π
π¦ ARGUMENTS π¦
pvr_objβ[IN]The target PowerVR-specific object. This is the main character of this whole operation, lowkey. πpvr_fileβ[IN]The file you want to associate the handle with. Yes, specifically that file. πhandleβ[OUT]A pointer where the newly created handle gets stored. Super important detail: it stays unmodified if an error gets encountered. So if things go sideways, whatever was in there before? Still there. Untouched. Respect. π
π DESCRIPTION π
So here's the tea. π« If an error is encountered, ownership of pvr_obj will not have been transferred β you keep your stuff, no harm done, we love a clean failure.
But if this function succeeds? Okay so now we have a situation. Further use of pvr_obj is considered undefined behaviour unless you're explicitly holding another reference to it. Not "kinda sketchy", not "probably fine" β literally undefined behaviour, fr fr. So either you hold another reference on purpose, or you keep your hands off. Periodt. π
π₯ RETURN π₯
0on success, or- Any error encountered while attempting to allocate a handle on
pvr_file.
That's it, that's the list. Short and honest, we stan. β
π SEE ALSO π
The kernel file lives right here, no cap:
./drivers/gpu/drm/imagination/pvr_gem.c
And these are the besties in the same friend group β go say hi:
pvr_gem_object_flags_validate(9)pvr_gem_object_from_handle(9)pvr_gem_object_vmap(9)pvr_gem_object_vunmap(9)pvr_gem_object_zero(9)pvr_gem_create_object(9)pvr_gem_object_create(9)pvr_gem_get_dma_addr(9)
okay that's the whole page, you ate that, go forth and handle your objects responsibly π§π
This lil gem came from ./drivers/gpu/drm/imagination, dated October 2026, and it's pvr_gem_object_into_handle(9) β bookmark it, screenshot it, send it to the group chat. ππ
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