intel_drrs_invalidate(9)

💖 NAME 💖

intel_drrs_invalidate — Disable Idleness DRRS. This page is from the Kernel API Manual, bestie, and it's all about that DRRS moment ✨

⚡ SYNOPSIS ⚡

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

🎀 ARGUMENTS 🎀

• display — display device. That's the whole tagline, bestie 💅
• frontbuffer_bits — frontbuffer plane tracking bits. Yep, the bits doing the tracking 🦋

🌈 DESCRIPTION 🌈

okay so this function gets called everytime rendering on the given planes start. So DRRS needs to be Upclocked, i.e. (LOW_RR -> HIGH_RR). It's giving "wake up, bestie, we're going high refresh rate" 😭🔥

Dirty frontbuffers relevant to DRRS are tracked in busy_frontbuffer_bits. Periodt. That's the bookkeeping ✨

👑 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_flush(9)
• intel_drrs_crtc_init(9)

xoxo 💖 — this page lives at ./drivers/gpu/drm/i915/display, dated October 2026, and it's literally intel_drrs_invalidate(9) 💅🫶