STRUCT DRM_SYNCOBJ(9)

💅 struct drm_syncobj(9) — Kernel API Manual 💅

okay bestie, welcome to the Kernel API Manual page for struct drm_syncobj — it’s giving sync-object realness and we’re gonna get through it together. 🫶

🦋 NAME 🦋

struct drm_syncobj — a sync object. periodt. ✨

✨ SYNOPSIS ✨

no cap, here’s the exact shape of the struct, bestie:

       struct drm_syncobj {
           struct kref refcount;
           struct dma_fence *fence;
           struct list_head cb_list;
           struct list_head ev_fd_list;
           spinlock_t lock;
           struct file *file;
        };

🫶 Members 🫶

• refcount — reference count of this object. 💖
• fence — NULL or a pointer to the fence bound to this object. 🚨 this field should not be used directly — use drm_syncobj_fence_get and drm_syncobj_replace_fence instead. 💅
• cb_list — list of callbacks to call when the fence gets replaced. 🔥
• ev_fd_list — list of registered eventfd. 🌸
• lock — protects cb_list and ev_fd_list, and write-locks fence. 👑
• file — a file backing for this syncobj. 🎀

🌸 Description 🌸

This structure defines a generic sync object which wraps a dma_fence. that’s the whole vibe, and honestly? iconic. ✨

👀 SEE ALSO 👀

Kernel file ./include/drm/drm_syncobj.h — plus drm_syncobj_get(9), drm_syncobj_put(9), and drm_syncobj_fence_get(9). go read those too, iykyk. 🫶

okay bye bestie — this page came from source ./include/drm, dated October 2026, and it’s the struct drm_syncobj(9) manual. mwah 💋🌈