xe_observation_ioctl(9)

💅 xe_observation_ioctl 💅

ok so bestie, welcome to the kernel API manual page for xe_observation_ioctl — it's the top level observation layer ioctl and honestly it's kind of the main character of this whole file. grab a snack, we're getting into it 🍓

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✨ NAME ✨

xe_observation_ioctl — the top level observation layer ioctl. that's it, that's the name, and yes it ate 💅

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🦋 SYNOPSIS 🦋

int xe_observation_ioctl (struct drm_device *dev , void *data , struct
drm_file *file );

ok so like, look at her. three params, one int coming back at you. no cap, that's the whole vibe 🌸

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🎀 ARGUMENTS 🎀

• dev — this one's a drm_device. that's it, that's the whole description, she's a little mysterious 🙈
• data — pointer to struct drm_xe_observation_param. this is where the actual goodies live, iykyk ✨
• file — a drm_file. also just vibing here 🌈

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💖 DESCRIPTION 💖

okay so here's what's actually happening: this function gets called for different observation streams types, and it lets you execute all the different operations that those stream types support. it's giving "one door, many rooms" energy fr fr 👑

like, literally it's the top level observation layer ioctl. the streams come in, the operations go out. iconic behavior honestly 🫶

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⭐ RETURN ⭐

• 0 on success 🎉
• a negative error code on failure 😭 (and bestie, you do NOT want the failure path, trust)

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🌸 SEE ALSO 🌸

• Kernel file ./drivers/gpu/drm/xe/xe_observation.c — go read her, she's the source of truth 💜
• xe_observation_paranoid_check(9) — the vibe check 🕵️
• xe_observation_sysctl_register(9) — the sign-up sheet ✍️
• xe_observation_sysctl_unregister(9) — the un-sign-up sheet 💀

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aaand that's the page!! 🧚 this lil beauty lives in ./drivers/gpu/drm/xe, dated October 2026, straight from your friendly neighbourhood Kernel API Manual. mwah, go forth and observe responsibly 💅✨🎀