vmw_cmdbuf_ctx_process(9)

📦 version 7.3.1, in nixpkgs unstable

💅 vmw_cmdbuf_ctx_process — a Kernel API Manual moment (yes bestie, section 9, the driver/kernel one) ✨

okay so picture this: you're deep in the vmwgfx source tree, section 9 of the Kernel API Manual, and this little function right here is the one that actually does stuff with a command buffer context. she's giving main character energy in the middle of the whole cmdbuf saga. let's get into it 🫶

🌸 NAME 🌸

vmw_cmdbuf_ctx_process — literally just: process a command buffer context. that's it. that's the whole vibe. ✨

🎀 SYNOPSIS 🎀

void vmw_cmdbuf_ctx_process (struct vmw_cmdbuf_man *man , struct vmw_cmdbuf_context *ctx , int *notempty );

no return value, she just goes and does the thing. void queen. 👑

🦋 ARGUMENTS 🦋

  • man — the command buffer manager. the big boss energy of this whole operation, like the group chat admin of cmdbufs 💅
  • ctx — the command buffer context. the actual context we're processing here, the one we're obsessed with 🎀
  • notempty — this one gets passed back a count of non-empty command submitted lists. so it's an out-param bestie, she reports back to you. 🫶

🌈 DESCRIPTION 🌈

so what does she do? she submits command buffers to the hardware if that's possible, and she processes the finished buffers too. multi-tasking icon. ✨

typically that processing means freeing them — very "clean up your room" of her — but on preemption or on error she takes the appropriate action instead. yes, different situation, different response. she's adaptable like that. 💅

and if it's appropriate, she wakes up the waiters. not the restaurant kind, the kernel kind. 😭 no cap, that's what it says.

⭐ SEE ALSO ⭐

okay this is the part where the manpage just lists her entire friend group and honestly? iconic. the whole vmwgfx cmdbuf crew, pulling up together 🫶

first up, the kernel file where all this lives:

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

then the structs, the whole squad of them:

  • 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)

and the functions, in the exact order the manpage fangirls over them, no cap:

like I said. the whole friend group. read them, love them, iykyk 💖

lowkey a reminder bestie: preemption and error paths are the whole reason this function can't just be "free the buffer and go home." she's got range and she's got responsibilities. periodt. 💅

and that's the page! brought to you from ./drivers/gpu/drm/vmwgfx 🌸, dated October 2026 — yes bestie, October 2026, she's from the future and she's still processing command buffer contexts. slay. 🎀🦋✨💜

📦 where this page comes from