i915_gem_ob...o_cpu_domain(9)

💅 i915_gem_object_set_to_cpu_domain(9) 💅

okay bestie, welcome to the Kernel API Manual, grab a strawberry 🍓 and let me tell you about this little function. it lives in the i915 graphics corner of the kernel and it's genuinely iconic.

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✨ NAME ✨

i915_gem_object_set_to_cpu_domain — Moves a single object to the CPU read, and possibly write domain.

like, one (1) object. not a group. not a bundle. a single one. main character energy only 💅

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🌸 SYNOPSIS 🌸

int i915_gem_object_set_to_cpu_domain (struct drm_i915_gem_object *obj ,
bool write );

it returns an int, takes a struct drm_i915_gem_object *obj, and a bool write. that's the whole vibe check.

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🎀 ARGUMENTS 🎀

• obj — object to act on. yes queen, this is the thing you're moving 🫶
• write — requesting write or read-only access. so like, are we just reading or are we also writing? you tell it.

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🦋 DESCRIPTION 🦋

This function returns when the move is complete, including waiting on flushes to occur.

read that again, bestie. it returns when the move is complete. it's not a "fire and forget" situation, it's a "we are doing this and you WILL wait" situation. and the waiting includes waiting on flushes to occur 😭 so if you were hoping to slide out early, no. not today. the flushes are happening and you're gonna sit there and watch, periodt.

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💜 SEE ALSO 💜

• Kernel file ./drivers/gpu/drm/i915/gem/i915_gem_domain.c
• i915_gem_object_set_to_wc_domain(9)
• i915_gem_object_set_to_gtt_domain(9)
• i915_gem_object_set_cache_level(9)
• i915_gem_set_domain_ioctl(9)

the squad. the friend group. go read them too, iykyk ⭐

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okay that's the page!! no cap, that's everything 💖 and now the cute little sign-off — this one comes from ./drivers/gpu/drm/i915/gem, dated October 2026, and it's filed under i915_gem_ob...o_cpu_domain(9). slay, bye 🧚‍♀️🌈