vmw_validation_add_resource(9)
π vmw_validation_add_resource(9) β a Kernel API Manual moment
okay so bestie, welcome to the vmw_validation_add_resource(9) page, straight out of the Kernel API Manual β¨ this is the one that takes a resource and yeets it into a validation context, and honestly? it's giving "small function, big responsibilities" π
β¨ NAME β¨
vmw_validation_add_resource β add a resource to the validation context π«Ά that's it, that's the whole vibe.
πΈ SYNOPSIS πΈ
int vmw_validation_add_resource (struct vmw_validation_context *ctx ,
struct vmw_resource *res , size_t priv_size , u32 dirty , void **p_node
, bool *first_usage );
literally the whole signature, no cap. six args, one int return, slay π
π¦ ARGUMENTS π¦
okay so here's the cast of characters, and yes every single one matters:
ctxβ the validation context. our main character energy container πresβ the resource. the thing we're actually adding, the whole reason we're here πpriv_sizeβ size of private, additional metadata. how much extra room you want for the side-quest info β¨dirtyβ whether to change dirty status. you're telling it: do we touch the dirty flag or not πp_nodeβ output pointer of additional metadata address. it hands you back where that metadata lives πfirst_usageβ whether this was the first time this resource was seen. lowkey the "is this a debut or a rerun" check π
π₯ RETURN π₯
Zero on success, negative error code otherwise. that's it. 0 = we ate, negative = something went sideways π periodt.
bestie heads up: no in-between, no "kinda worked" β it's either 0 or a negative error code, fr fr π
π SEE ALSO π
the whole friend group π«Ά first up, the kernel file itself:
./drivers/gpu/drm/vmwgfx/vmwgfx_validation.c
and then the entire squad, in order, exactly as they appear:
struct vmw_validation_bo_node(9)struct vmw_validation_res_node(9)vmw_validation_mem_alloc(9)vmw_validation_mem_free(9)vmw_validation_find_bo_dup(9)vmw_validation_find_res_dup(9)vmw_validation_add_bo(9)vmw_validation_res_set_dirty(9)vmw_validation_res_switch_backup(9)vmw_validation_res_reserve(9)vmw_validation_res_unreserve(9)vmw_validation_bo_validate_single(9)vmw_validation_bo_validate(9)vmw_validation_res_validate(9)vmw_validation_drop_ht(9)vmw_validation_unref_lists(9)vmw_validation_prepare(9)vmw_validation_revert(9)vmw_validation_done(9)vmw_validation_preload_bo(9)vmw_validation_preload_res(9)vmw_validation_bo_backoff(9)
no skipping, we stan a complete list π
and that's the page!! π§ this lil writeup lives under ./drivers/gpu/drm/vmwgfx, and the version/date stamp is October 2026 β so yeah, it's dated, it's sourced, it's iconic β bye bestie, go validate some resources responsibly π
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