vmw_cmdbuf_ctx_add(9)
β¨ vmw_cmdbuf_ctx_add(9) β¨
okay bestie, so this one is a kernel API manual page for vmw_cmdbuf_ctx_add(9) and it is literally the function that hands your command buffer off to the queue π
stay with me, it's short and it slays.
π NAME π
vmw_cmdbuf_ctx_add β schedule a command buffer for submission on a command buffer context π¦
πΈ SYNOPSIS πΈ
void vmw_cmdbuf_ctx_add (struct vmw_cmdbuf_man *man , struct
vmw_cmdbuf_header *header , SVGACBContext cb_context );
like, that's the whole signature, no cap π
π ARGUMENTS π
manβ the command buffer manager. your main character struct fr π«Άheaderβ the header of the buffer you wanna submit. it's giving "the actual thing" β¨cb_contextβ the command buffer context to use. pick your vibe, bestie π―
π₯ DESCRIPTION π₯
so what it does: this function adds header to the "submitted" queue of the command buffer context identified by cb_context. then it calls the command buffer manager processing to potentially submit the buffer to hardware π note the "potentially" β it's not a guarantee, it's a vibe check π
β οΈ okay this is the important part bestie: man->lock needs to be held when calling this function. no lock, no love. don't skip this π
π¦ SEE ALSO π¦
the whole extended fam, go say hi π
- Kernel file
./drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c 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)vmw_cmdbuf_cur_lock(9)vmw_cmdbuf_cur_unlock(9)vmw_cmdbuf_header_inline_free(9)__vmw_cmdbuf_header_free(9)vmw_cmdbuf_header_free(9)vmw_cmdbuf_header_submit(9)vmw_cmdbuf_ctx_init(9)vmw_cmdbuf_ctx_submit(9)vmw_cmdbuf_ctx_process(9)vmw_cmdbuf_man_process(9)vmw_cmdbuf_irqthread(9)vmw_cmdbuf_work_func(9)vmw_cmdbuf_man_idle(9)__vmw_cmdbuf_cur_flush(9)vmw_cmdbuf_cur_flush(9)vmw_cmdbuf_idle(9)vmw_cmdbuf_try_alloc(9)vmw_cmdbuf_alloc_space(9)vmw_cmdbuf_space_pool(9)vmw_cmdbuf_space_inline(9)vmw_cmdbuf_alloc(9)vmw_cmdbuf_reserve_cur(9)vmw_cmdbuf_commit_cur(9)vmw_cmdbuf_reserve(9)vmw_cmdbuf_commit(9)vmw_cmdbuf_send_device_command(9)vmw_cmdbuf_preempt(9)vmw_cmdbuf_startstop(9)vmw_cmdbuf_set_pool_size(9)vmw_cmdbuf_man_create(9)vmw_cmdbuf_remove_pool(9)vmw_cmdbuf_man_destroy(9)
and that's the whole page, periodt π this cutie lives in ./drivers/gpu/drm/vmwgfx and the version note says October 2026, so mark your calendar bestie β sourced straight from that directory, mwah ππ§
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms