pvr_gem_object_into_handle(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… pvr_gem_object_into_handle(9) β€” from the Kernel API Manual, bestie πŸŽ€

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. ✨


🌸 NAME 🌸

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. 🫢


✨ SYNOPSIS ✨

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. πŸ’…


πŸ¦‹ ARGUMENTS πŸ¦‹

  • pvr_obj β€” [IN] The target PowerVR-specific object. This is the main character of this whole operation, lowkey. πŸ‘‘
  • pvr_file β€” [IN] The file you want to associate the handle with. Yes, specifically that file. πŸ“
  • handle β€” [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. πŸ™ˆ

πŸ’– DESCRIPTION πŸ’–

So here's the tea. πŸ«– 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. πŸ’€


πŸ”₯ RETURN πŸ”₯

  • 0 on 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. ⭐


🌈 SEE ALSO 🌈

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:


okay that's the whole page, you ate that, go forth and handle your objects responsibly πŸ§šπŸ’œ

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. πŸ˜­πŸ’–

πŸ“¦ where this page comes from