vmw_cmdbuf_man_create(9)

📦 version 7.3.1, in nixpkgs unstable

💖 vmw_cmdbuf_man_create(9) 💖

okay so this is a page from the Kernel API Manual bestie, and it's all about one little function in the vmwgfx driver that hands you a whole command buffer manager. yes ma'am, we're doing kernel internals today 🎀

✨ NAME ✨

vmw_cmdbuf_man_create — creates a command buffer manager and turns it on for inline command buffer submissions only. that's it, that's the whole vibe 💅

🌸 SYNOPSIS 🌸

struct vmw_cmdbuf_man * vmw_cmdbuf_man_create (struct vmw_private
*dev_priv );

like, you give it a struct vmw_private * and it gives you back a struct vmw_cmdbuf_man *. iconic exchange fr 🫶

🦋 ARGUMENTS 🦋

  • dev_priv — a pointer to the device private structure. that's your device's little personal info packet, and yes it's required, no you can't skip it 💖

⭐ DESCRIPTION ⭐

so here's the tea: it returns a pointer to a command buffer manager on success, and an error pointer on failure. that's the whole deal 🤷‍♀️

the command buffer manager it hands you comes pre-enabled — but only for submissions of size VMW_CMDBUF_INLINE_SIZE. so like, small stuff only. it's giving "starter pack" energy, lowkey. don't come at it with a giant buffer and expect it to slay 🔥

no cap: on failure you get an error pointer, not NULL. check that thing properly before you dereference it, bestie 😭💀

👑 SEE ALSO 👑

the kernel file that runs this whole show:

  • ./drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c

and the rest of the cmdbuf cinematic universe, in order, because we do NOT skip anyone:

and that's the page!! 💜 this lil gem lives in ./drivers/gpu/drm/vmwgfx, dated October 2026, in the Kernel API Manual — go read the source, it ate, periodt 🌈✨🍓

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