intel_dp_eff...ve_data_rate(9)

✨ NAME ✨

okay so bestie, welcome to the Kernel API Manual 💖 this page is all about intel_dp_effective_data_rate — yes, the page header goes full truncation-core with intel_dp_eff...ve_data_rate(9), but the real NAME line says it returns the pixel data rate while accounting for BW allocation overhead. periodt 💅

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🫶 SYNOPSIS 🫶

int intel_dp_effective_data_rate (int pixel_clock , int bpp_x16 , int bw_overhead );

it’s giving <purple>an int return type</purple>, three int arguments, and zero mystery. slay.

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🌸 ARGUMENTS 🌸

• pixel_clock — the pixel clock in kHz, bestie ⏰
• bpp_x16 — bits per pixel in .4 fixed point format 🎀
• bw_overhead — BW allocation overhead in 1ppm units. keep it in ppm, no cap 🧚

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💅 DESCRIPTION 💅

Return the effective pixel data rate in kB/sec units, taking into account the provided SSC, FEC, and DSC BW allocation overhead. that’s the whole function, and it ate 🔥

the overhead is the stuff you passed in as bw_overhead, and the function gives you back the effective pixel data rate in kB/sec. literally that’s the vibe 🦋

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🦋 SEE ALSO 🦋

Kernel file: ./drivers/gpu/drm/i915/display/intel_dp.c — that’s the source file, no cap 🫶

also peek at these iconic little functions:

• intel_dp_is_edp(9)
• intel_dp_link_symbol_size(9)
• intel_dp_link_symbol_clock(9)
• intel_dp_max_link_data_rate(9)
• intel_dp_sink_enable_decompression(9)
• intel_dp_sink_disable_decompression(9)
• intel_dp_sync_state(9)
• intel_dp_check_mst_status(9)

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okay bye 💖 this gem comes from the ./drivers/gpu/drm/i915/display source/version corner, dated October 2026, and signed intel_dp_eff...ve_data_rate(9). mwah 🫶🎀