vmw_cmdbuf_work_func(9)

📦 version 7.3.1, in nixpkgs unstable

💅 vmw_cmdbuf_work_func(9) — kernel API manual, but make it make sense

okay so bestie, welcome to vmw_cmdbuf_work_func(9) 💖 this is a kernel API man page from the vmw_cmdbuf_work_func(9) section of the manual, and yes we are absolutely reading it together, grab a snack 🍓

✨ NAME ✨

vmw_cmdbuf_work_func — the deferred work function that handles command buffer errors. that's it, that's the whole vibe 🎀

🌸 SYNOPSIS 🌸

void vmw_cmdbuf_work_func (struct work_struct *work );

like, look at her. one argument, void return, struct work_struct * pointer, no notes 👑

🦋 ARGUMENTS 🦋

  • work — the work func closure argument. that's literally the whole description, she's mysterious, she's lowkey serving minimalism 💅

🔥 DESCRIPTION 🔥

okay so here's the tea ☕ restarting the command buffer context after an error requires process context. and like… work functions don't always get to live that life, so it gets deferred to this work function instead. that's the entire job. it's giving "I handle the error recovery so you don't have to" main character energy ✨

no cap, that's the whole description — the context requirement is the reason she exists, periodt.

💜 SEE ALSO 💜

bestie the cross-reference list here is long and honestly iconic for it, so let's get into it 🌈

first up, the kernel file where all of this lives:

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

then the structs:

  • struct vmw_cmdbuf_context(9)
  • struct vmw_cmdbuf_man(9)
  • struct vmw_cmdbuf_header(9)
  • struct vmw_cmdbuf_dheader(9)
  • struct vmw_cmdbuf_alloc_info(9)

then the locking girlies 🫶

then the header crew:

the ctx besties:

the irq + idle squad:

the allocation girlies (yes there are a lot of them, no we are not skipping any 💀):

reserve & commit, the duo we stan:

device-side business:

and the lifecycle icons 👑

fr fr go read them, they're all in the same file and they all connect — iykyk 💫

🎀 sign-off 🎀

and that's the page!! sourced from ./drivers/gpu/drm/vmwgfx, dated October 2026, living under the manual name vmw_cmdbuf_work_func(9). go forth and defer your error handling responsibly bestie, mwah 💋🌸✨

📦 where this page comes from