STRUCT DRM_V3D_INDIRECT_CSD(9)

🌸 struct drm_v3d_indirect_csd(9) 🌸

okay so you're in the Kernel API Manual bestie, and we're talking about struct drm_v3d_indirect_csd 💅 let me tell you everything 🫶

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✨ NAME ✨

struct drm_v3d_indirect_csd — the ioctl extension that lets the CPU job create an indirect CSD 🎀 no cap, that's the whole vibe

🦋 SYNOPSIS 🦋

struct drm_v3d_indirect_csd {
    struct drm_v3d_extension base;
    struct drm_v3d_submit_csd submit;
    __u32 indirect;
    __u32 offset;
    __u32 wg_size;
    __u32 wg_uniform_offsets[3];
};

look at her 🥹 six members, all lined up, all iconic 👑

💜 Members 💜

so the source has the heading right here and then genuinely nothing under it — no per-member commentary, no little blurbs, nothing 😭 so the struct up in SYNOPSIS is the entire serve, and honestly? we respect it. the fields speak for themselves fr fr ✨

👑 Description 👑

okay so here's the tea ☕ when an extension with the id DRM_V3D_EXT_ID_CPU_INDIRECT_CSD gets defined, it points at this extension to set up an indirect CSD submission 🔥 that's the whole job.

what it does is create a CPU job that's linked to a CSD job 🧚 the two are besties, they're linked, that's the arrangement.

then the CPU job does the patient thing: it waits for the indirect CSD dependencies ⏳ and once those dependencies are signaled, it goes ahead and updates the CSD job config — and only after that does it allow the CSD job to execute 🌈 so like: wait → deps signal → update config → then execution. in that order. periodt 💅

🔥 SEE ALSO 🔥

• Kernel file ./include/uapi/drm/v3d_drm.h 📁
• struct drm_v3d_multi_sync(9)
• struct drm_v3d_submit_cl(9)
• struct drm_v3d_wait_bo(9)
• struct drm_v3d_create_bo(9)
• struct drm_v3d_mmap_bo(9)
• struct drm_v3d_timestamp_query(9)
• struct drm_v3d_reset_timestamp_query(9)
• struct drm_v3d_copy_timestamp_query(9)
• struct drm_v3d_reset_performance_query(9)
• struct drm_v3d_copy_performance_query(9)
• struct drm_v3d_perfmon_get_counter(9)
• struct drm_v3d_perfmon_set_global(9)

go read all of those too, they're the friend group 🫶✨

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and that's the page!! 🎀 it lives in ./include/uapi/drm and it's stamped October 2026 — go off, calendar icon 💖 mwah, bye bestie 🌸💜