vmw_resource_check_buffer(9)

💖 NAME 💖

okay bestie, this is vmw_resource_check_buffer(9) from the Kernel API Manual — yes, the manual name is right there, we’re keeping it cute. This function checks whether a backup buffer is needed for a resource, and if it is, it allocates one, reserves it, and validates it. periodt. ✨

🌸 SYNOPSIS 🌸

int vmw_resource_check_buffer (struct ww_acquire_ctx *ticket , struct
       vmw_resource *res , bool interruptible , struct ttm_validate_buffer
       *val_buf );

🎀 ARGUMENTS 🎀

• ticket — the ww acquire context to use, or NULL if you’re trylocking. lowkey important.
• res — the resource for which to allocate a backup buffer. main character resource energy.
• interruptible — whether any sleeps during allocation should be performed while interruptible. no cap, that’s the whole vibe.
• val_buf — on successful return, this contains data about the reserved and validated backup buffer. slay. 💅

👀 SEE ALSO 👀

bestie, the whole squad is here — Kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_resource.c and these iconic references:

• vmw_resource_mob_attach(9)
• vmw_resource_mob_detach(9)
• vmw_resource_release_id(9)
• vmw_resource_alloc_id(9)
• vmw_resource_init(9)
• vmw_user_resource_lookup_handle(9)
• vmw_resource_buf_alloc(9)
• vmw_resource_do_validate(9)
• vmw_resource_unreserve(9)
• vmw_resource_backoff_reservation(9)
• vmw_resource_do_evict(9)
• vmw_resource_validate(9)
• vmw_resource_unbind_list(9)
• vmw_query_readback_all(9)
• vmw_query_move_notify(9)
• vmw_resource_needs_backup(9)
• vmw_resource_evict_type(9)
• vmw_resource_evict_all(9)
• vmw_resource_unpin(9)
• vmw_res_type(9)
• vmw_resource_dirty_update(9)
• vmw_resources_clean(9)

xoxo, signing off from source ./drivers/gpu/drm/vmwgfx on October 2026 — this was vmw_resource_check_buffer(9), and yes, she ate. 💖🦋💅