STRUCT DRM_I915_QUERY_ENGINE_INFO(9)

💖 struct drm_i915_query_engine_info(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little struct page and it's lowkey iconic — it's all about asking the i915 driver "hey queen, which engines do u have?" 🎀

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🌸 NAME 🌸

struct drm_i915_query_engine_info — literally just the struct itself, no extra caption, that's the whole name, periodt 💅

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⭐ SYNOPSIS ⭐

struct drm_i915_query_engine_info {
    __u32 num_engines;
    __u32 rsvd[3];
    struct drm_i915_engine_info engines[];
};

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🦋 Members 🦋

• num_engines — how many struct drm_i915_engine_info structs are following right behind it, bestie. like a headcount for the engine party 🎉
• rsvd — MBZ 🙈 (that's "must be zero" — do not touch, do not decorate, leave it at zero fr fr)
• engines — the marker for the drm_i915_engine_info structures. think of it as the little "engines start here ➡️" sign 🪧

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✨ Description ✨

so the engine info query does a full lil census 📋 — it enumerates all engines known to the driver, and it does that by filling in an array of struct drm_i915_engine_info structures. that's the whole vibe. no cap 🫶

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🌈 SEE ALSO 🌈

like, go read these too, they're all connected iykyk 👑

• Kernel file ./tools/perf/trace/beauty/include/uapi/drm/i915_drm.h
• uevents generated by i915 on its device node(9)
• struct i915_user_extension(9)
• enum drm_i915_gem_engine_class(9)
• struct i915_engine_class_instance(9)
• perf_events exposed by i915 through /sys/bus/event_sources/drivers/i915(9)
• struct drm_i915_getparam(9)
• drm_i915_getparam_t(9)
• struct drm_i915_gem_mmap_offset(9)
• struct drm_i915_gem_set_domain(9)
• struct drm_i915_gem_exec_fence(9)
• struct drm_i915_gem_execbuffer_ext_timeline_fences(9)
• struct drm_i915_gem_execbuffer2(9)
• struct drm_i915_gem_caching(9)
• struct drm_i915_gem_context_create_ext(9)
• struct drm_i915_gem_context_param(9)
• Virtual Engine uAPI(9)
• struct i915_context_engines_parallel_submit(9)
• Context Engine Map uAPI(9)
• struct drm_i915_gem_context_create_ext_setparam(9)
• struct drm_i915_gem_vm_control(9)
• struct drm_i915_gem_userptr(9)
• struct drm_i915_perf_oa_config(9)
• struct drm_i915_query_item(9)
• struct drm_i915_query(9)
• struct drm_i915_query_topology_info(9)
• Engine Discovery uAPI(9)
• struct drm_i915_engine_info(9)
• struct drm_i915_query_perf_config(9)
• enum drm_i915_gem_memory_class(9)
• struct drm_i915_gem_memory_class_instance(9)
• struct drm_i915_memory_region_info(9)
• struct drm_i915_query_memory_regions(9)
• struct drm_i915_query_guc_submission_version(9)
• GuC HWCONFIG blob uAPI(9)
• struct drm_i915_gem_create_ext(9)
• struct drm_i915_gem_create_ext_memory_regions(9)
• struct drm_i915_gem_create_ext_protected_content(9)
• struct drm_i915_gem_create_ext_set_pat(9)

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💜 tiny sign-off, bestie: this page came from the kernel source file ./tools/perf/trace/beauty/incl... and it's dated October 2026, and yeah that's it, go query some engines and slay 💅✨🌸