STRUCT VMW_CMDBUF_RES_MANAGER(9)

📦 version 7.3.1, in nixpkgs unstable

💖 struct vmw_cmdbuf_res_manager — the command buffer resource manager bestie 💖

okay so this is a page from the Kernel API Manual, and it's literally about struct vmw_cmdbuf_res_manager, the command buffer resource manager. yes, that one. come on, let's get into it 🫶

✨ SYNOPSIS ✨

struct vmw_cmdbuf_res_manager {
    unsigned long resources[1 << (( VMW_CMDBUF_RES_MAN_HT_ORDER) - 1)];
    struct list_head list;
    struct vmw_private *dev_priv;
 };

that's the whole shape of her. three members, iconic, no notes 💅

🎀 Members 🎀

  • resources — the hash table that holds both the staged and the committed command buffer resources. yes she's holding both, she's multitasking, she's main character energy 👑
  • list — the list of committed command buffer resources. only the committed ones live here, know the difference iykyk 🌸
  • dev_priv — a pointer to a device private structure. just a lil pointer, doing its job, slaying ⭐

🦋 DESCRIPTION 🦋

so resources and list are protected by the cmdbuf mutex — for now. like, that's the current situation, that's the vibe check, that's the locking story fr fr 🔥

ngl "for now" is doing a lot of heavy lifting in that sentence, so don't go assuming the locking model is forever, bestie 😭

🌈 SEE ALSO 🌈

the whole friend group, in the kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c:

and that's the page, periodt 💜 it came out of ./drivers/gpu/drm/vmwgfx, dated October 2026 — so like, mark your calendar bestie, this one's from the future 🧚✨ go read the source, it ate 💖

📦 where this page comes from