vmw_validation_preload_res(9)
π vmw_validation_preload_res(9) β¨
okay so this is a page from the Kernel API Manual bestie, and it's about vmw_validation_preload_res β yes that's a whole mouthful, we're saying it with our chest π
πΈ NAME πΈ
vmw_validation_preload_res β prep the validation memory allocator ahead of time so a later call to vmw_validation_add_res() doesn't have to go scrambling πβ¨
π SYNOPSIS π
int vmw_validation_preload_res (struct vmw_validation_context *ctx ,
unsigned int size );
π¦ ARGUMENTS π¦
ctxβ a pointer to the validation context, the main character of this whole situation πsizeβ how big the validation node extra data is. the deets are below, keep reading π«Ά
β DESCRIPTION β
so here's the vibe: Iff this function comes back successful, then the next call to vmw_validation_add_res with the same size or smaller is guaranteed not to sleep π΄π« β like, it's already got everything it needs, no napping on the job.
lowkey important: if you get an error back, that's not fatal β it just voids the guarantee. so no cap, you can keep going, you just lost the "won't sleep" promise. adjust your expectations accordingly π
π₯ RETURN π₯
- Zero β slay, it worked π
-EINVALβ otherwise π
π SEE ALSO π
the kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_validation.c and honestly the whole validation friend group π:
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_add_resource(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_bo_backoff(9)
aaaand that's the whole page bestie π§β¨ this came out of ./drivers/gpu/drm/vmwgfx with an October 2026 date stamp, manual vmw_validation_preload_res(9) β ily, go preload responsibly 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