STRUCT DRM_XE_OBSERVATION_PARAM(9)

💖 NAME 💖

Okay bestie, welcome to the Kernel API Manual page for struct drm_xe_observation_param(9) 💅✨. This struct is the Input of &DRM_IOCTL_XE_OBSERVATION — that’s the official name line, fr fr. It’s giving “little input package for the observation ioctl” energy, and we’re obsessed.

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✨ SYNOPSIS ✨

Here’s the full shape of it, no cap:

struct drm_xe_observation_param {
    __u64 extensions;
    __u64 observation_type;
    __u64 observation_op;
    __u64 param;
};

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🎀 Members 🎀

Every field is a __u64, and every field is important, okay? 💖

• extensions — pointer to the first extension struct, if any.
• observation_type — observation stream type, from enum drm_xe_observation_type.
• observation_op — observation stream op, from enum drm_xe_observation_op.
• param — pointer to actual stream params.

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💜 Description 💜

The observation layer enables multiplexing observation streams of multiple types 🌈 — yes, multiple types, she’s a multiplexer. The actual params for a particular stream operation are supplied via the param pointer. And bestie, use __copy_from_user to get these params. That’s the lore.

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🦋 SEE ALSO 🦋

Go read these next, bestie — the whole friend group is here:

• Kernel file ./include/uapi/drm/xe_drm.h
• Xe Device Block Diagram(9)
• Xe uAPI Overview(9)
• Xe IOCTL Extensions(9)
• struct drm_xe_user_extension(9)
• struct drm_xe_ext_set_property(9)
• struct drm_xe_engine_class_instance(9)
• struct drm_xe_engine(9)
• struct drm_xe_query_engines(9)
• enum drm_xe_memory_class(9)
• struct drm_xe_mem_region(9)
• struct drm_xe_query_mem_regions(9)
• struct drm_xe_query_config(9)
• struct drm_xe_gt(9)
• struct drm_xe_query_gt_list(9)
• struct drm_xe_query_topology_mask(9)
• struct drm_xe_query_engine_cycles(9)
• struct drm_xe_query_uc_fw_version(9)
• struct drm_xe_query_pxp_status(9)
• struct drm_xe_device_query(9)
• struct drm_xe_gem_create(9)
• struct drm_xe_gem_mmap_offset(9)
• struct drm_xe_vm_create(9)
• struct drm_xe_vm_destroy(9)
• struct drm_xe_vm_bind_op(9)
• struct drm_xe_vm_bind(9)
• struct drm_xe_vm_get_property(9)
• struct drm_xe_exec_queue_create(9)
• struct drm_xe_exec_queue_destroy(9)
• struct drm_xe_exec_queue_get_property(9)
• struct drm_xe_sync(9)
• struct drm_xe_exec(9)
• struct drm_xe_wait_user_fence(9)
• enum drm_xe_observation_type(9)
• enum drm_xe_observation_op(9)
• enum drm_xe_observation_ioctls(9)
• enum drm_xe_oa_unit_type(9)
• struct drm_xe_oa_unit(9)
• struct drm_xe_query_oa_units(9)
• enum drm_xe_oa_format_type(9)
• enum drm_xe_oa_property_id(9)
• struct drm_xe_oa_config(9)
• struct drm_xe_oa_stream_status(9)
• struct drm_xe_oa_stream_info(9)
• enum drm_xe_pxp_session_type(9)
• enum drm_xe_eu_stall_property_id(9)
• struct drm_xe_query_eu_stall(9)
• struct drm_xe_madvise(9)
• struct drm_xe_mem_range_attr(9)
• struct drm_xe_vm_query_mem_range_attr(9)
• struct drm_xe_exec_queue_set_property(9)
• Xe DRM RAS(9)
• enum drm_xe_ras_error_severity(9)
• enum drm_xe_ras_error_component(9)

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Signed with sparkles 🫶 source/version: ./include/uapi/drm; date: October 2026.