STRUCT DRM_SCHED_INIT_ARGS(9)

🌸 NAME 🌸

okay so struct drm_sched_init_args is literally the parameters for initializing a DRM GPU scheduler. We're in the Kernel API Manual, bestie, and this struct is giving setup-era main character energy 💅✨

✨ SYNOPSIS ✨

       struct drm_sched_init_args {
           const struct drm_sched_backend_ops *ops;
           struct workqueue_struct *submit_wq;
           struct workqueue_struct *timeout_wq;
           u32 num_rqs;
           u32 credit_limit;
           unsigned int hang_limit;
           long timeout;
           atomic_t *score;
           const char *name;
           struct device *dev;
        };

🫶 Members 🫶

• ops — backend operations provided by the driver 👑
• submit_wq — workqueue to use for submission. If it's NULL, an ordered wq is allocated and used. slay 🦋
• timeout_wq — workqueue to use for timeout work. If it's NULL, the system_wq is used. periodt 💅
• num_rqs — Number of run-queues. This may be at most DRM_SCHED_PRIORITY_COUNT, as there's usually one run-queue per priority, but may be less 🌈
• credit_limit — the number of credits this scheduler can hold from all jobs 🎀
• hang_limit — number of times to allow a job to hang before dropping it. This mechanism is DEPRECATED. Set it to 0. fr fr, do not play with this one 😭

🚨 bestie warning: hang_limit is DEPRECATED. Set it to 0. That's the vibe check. 💀

• timeout — timeout value in jiffies for submitted jobs ⏳
• score — score atomic shared with other schedulers. May be NULL. no cap 🫶
• name — name (typically the driver's name). Used for debugging 🔍
• dev — associated device. Used for debugging 🧚

💖 SEE ALSO 💖

• Kernel file ./include/drm/gpu_scheduler.h
• DRM_SCHED_FENCE_DONT_PIPELINE(9)
• DRM_SCHED_FENCE_FLAG_HAS_DEADLINE_BIT(9)
• struct drm_sched_entity(9)
• struct drm_sched_rq(9)
• struct drm_sched_fence(9)
• struct drm_sched_job(9)
• enum drm_gpu_sched_stat(9)
• struct drm_sched_backend_ops(9)
• struct drm_gpu_scheduler(9)
• struct drm_sched_pending_job_iter(9)
• drm_sched_for_each_pending_job(9)

mwah 💋 this lil page came from ./include/drm, dated October 2026, and it's literally all about struct drm_sched_init_args(9) — bye bestie 🦋💜