host1x_syncpt_alloc(9)
π host1x_syncpt_alloc(9) β Kernel API Manual
okay bestie so this page lives in the Kernel API Manual and it's literally all about grabbing yourself a syncpoint. it's short, it's sweet, it's iconic. let's get into it π
β¨ NAME β¨
host1x_syncpt_alloc β allocate a syncpoint π¦
β¨ SYNOPSIS β¨
struct host1x_syncpt * host1x_syncpt_alloc (struct host1x *host ,
unsigned long flags , const char *name );
β¨ ARGUMENTS β¨
hostβ the host1x device data, aka the whole vibe you're working with πflagsβ a bitfield ofHOST1X_SYNCPT_*flags, so like, the settings, no cap π₯nameβ the name for the syncpoint, used in debug prints. give it a cute little label so you can find it later π·οΈ
β¨ DESCRIPTION β¨
So what does it do? It allocates a hardware syncpoint for the caller's use. and when we say "for the caller's use" we mean it literally β the caller then has the sole authority to mutate the syncpoint's value until it is freed again. main character energy only, nobody else gets to touch it ππ
heads up bestie: if no free syncpoints are available, or aNULLname was specified, it returnsNULL. so fr fr, check your name and check your availability π
β¨ SEE ALSO β¨
Kernel file ./drivers/gpu/host1x/syncpt.c β go read the source, it's giving lore πβ¨
host1x_syncpt_id(9)host1x_syncpt_incr_max(9)host1x_syncpt_incr(9)host1x_syncpt_wait(9)host1x_syncpt_request(9)host1x_syncpt_put(9)host1x_syncpt_read_max(9)host1x_syncpt_read_min(9)host1x_syncpt_read(9)host1x_syncpt_get_by_id(9)host1x_syncpt_get_by_id_noref(9)host1x_syncpt_get(9)host1x_syncpt_get_base(9)host1x_syncpt_base_id(9)host1x_syncpt_release_vblank_reservation(9)
that's the whole page, bestie, you ate that π this one's from ./drivers/gpu/host1x, dated October 2026, and yeah the header still says host1x_syncpt_alloc(9) because some things never change π«Ά slay β¨πΈ
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