intel_drrs_flush(9)

🎀 NAME 🎀

okay bestie, welcome to the intel_drrs_flush(9) page — this is where intel_drrs_flush does its thing: Restart Idleness DRRS 💖✨

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✨ SYNOPSIS ✨

void intel_drrs_flush (struct intel_display *display , unsigned int
       frontbuffer_bits );

she returns void, no return value, periodt 💅

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🌸 ARGUMENTS 🌸

• display — the display device 🖥️💖
• frontbuffer_bits — frontbuffer plane tracking bits ✨

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💅 DESCRIPTION 💅

okay so this function gets called every time rendering on the given planes has completed, or when a flip on a crtc is completed. so obviously DRRS should be upclocked (LOW_RR -> HIGH_RR) 🔥👑

and also, Idleness detection should be started again, if no other planes are dirty 🫶

the dirty frontbuffers relevant to DRRS are tracked in busy_frontbuffer_bits — that's the little notebook where the tea is kept, bestie 💀📓

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🔥 SEE ALSO 🔥

• Kernel file: ./drivers/gpu/drm/i915/display/intel_drrs.c 🦋
• Display Refresh Rate Switching (DRRS)(9) ✨
• intel_drrs_activate(9) 💖
• intel_drrs_deactivate(9) 🌸
• intel_drrs_invalidate(9) 🎀
• intel_drrs_crtc_init(9) 👑

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💖 that’s the whole tea, bestie — this page is from the Kernel API Manual, source ./drivers/gpu/drm/i915/display, dated October 2026, for intel_drrs_flush(9). mwah! 💅✨