STRUCT DRM_VBLANK_CRTC_TIMER(9)

✨ NAME ✨

struct drm_vblank_crtc_timer — the vblank timer for a CRTC 💅

bestie welcome to the Kernel API Manual, grab a boba, we're learning about vblank timers 🧋✨

🎀 SYNOPSIS 🎀

okay so here's the whole vibe, no cap, copied exactly because hello, it's struct code:

struct drm_vblank_crtc_timer {
    struct hrtimer timer;
    spinlock_t interval_lock;
    ktime_t interval;
    struct drm_crtc *crtc;
};

like, that's the entire little guy. four members. icon behavior fr fr 😭💖

🦋 Members 🦋

• timer — the vblank's high-resolution timer ⏰✨ it's literally the main character here, hi-res and everything
• interval_lock — this one protects interval 🔒 like a bodyguard but for a time value, we love a protective queen
• interval — the duration between two vblanks 🎀 the gap, the pause, the little breather between refreshes
• crtc — the timer's CRTC 🖥️✨ every timer needs its own screen boo, that's this pointer

👑 SEE ALSO 👑

go read these next, iykyk:

• Kernel file ./include/drm/drm_vblank.h
• struct drm_pending_vblank_event(9)
• struct drm_vblank_crtc_config(9)
• struct drm_vblank_crtc(9)

and that's the whole page bestie, you ate that 🫶🌸

source: ./include/drm · dated October 2026 · mwah, go touch some registers 💜🌈